JP6421301B2 - Waste paper recycling processor - Google Patents

Description

The present invention relates to a used paper recycling apparatus for manufacturing recycled paper from used paper.

Conventionally, as this kind of used paper recycling apparatus, there is one disclosed in Patent Document 1, for example.
This suppresses the generation of static electricity in the paper material conveyance path for conveying the paper material obtained by shredding waste paper from the storage unit to the pulper device, and the conveyance caused by the paper material adhering to the paper material conveyance path It is intended to suppress the occurrence of failures and prevent the static electricity from adversely affecting the electrical equipment of the used paper recycling apparatus.

For this reason, the steam generated in the pulper device is sent to the paper material transport path using the steam path, the atmosphere in the paper material transport path is humidified, and the humidity is increased to suppress the generation of static electricity in advance. Is prevented.

JP2012-7246

By the way, recycled paper obtained by used paper recycling processing equipment that is a small paper machine of a size that can be installed in offices, etc., may have an unstable moisture content. Such paper with an unstable moisture content is copied. When printing is performed by a printing machine such as a printing machine, printing failure or conveyance failure may occur due to the influence of static electricity.

The present invention solves the above-described problems, and an object thereof is to provide a used paper recycling apparatus capable of obtaining recycled paper adjusted to an appropriate water content.

In order to achieve the above object, the used paper recycling apparatus of the present invention comprises a pulp preparation unit for preparing recycled pulp from used paper, a paper making unit for forming wet paper from recycled pulp, and a drying unit for drying wet paper, in the used paper recycling apparatus and a mounting portion for mounting the recycled paper obtained by drying the wet paper, have a humidifying means for humidifying the atmosphere in the space area of the mounting portion, the humidifying means, generates steam And a steam path in which the steam generation source communicates with the space area of the placement section, and a steam supply duct that opens toward the recycled paper of the placement section is installed in the steam path. The

  And in the said structure, a steam generation source is at least any one of the pulper apparatus which disaggregates used paper in a pulp preparation part, and the drying apparatus which dries wet paper in a drying part.

  Furthermore, in each said structure, the humidification means provided the air blower in at least any one of a steam generation source or a steam path | route.

  Further, in each configuration, the drying unit dries the wet paper so that the moisture content of the recycled paper that has passed through the drying unit is lower than the moisture content of the recycled paper placed on the placement unit.

Furthermore, the used paper recycling apparatus of the present invention is obtained by a pulp preparation unit for preparing recycled pulp from used paper, a paper making unit for forming wet paper from recycled pulp, a drying unit for drying wet paper, and drying wet paper. A used paper recycling processing apparatus comprising a placement unit on which the recycled paper is placed, and has a humidifying unit that humidifies an atmosphere in a space region of the placement unit, and the humidification unit supplies the humidification unit to the space region of the placement unit Steam supply amount adjusting means for adjusting the amount of steam is provided, and the steam supply amount adjusting means calculates the ratio between the amount of steam supplied to the mounting part through the steam path and the amount of steam exhausted to the outside of the steam path. adjust.

Further, in each of the above-described configurations, the steam supply amount adjusting means includes the temperature or humidity of the atmosphere in the space area of the placement unit, the heating temperature of the drying device that dries the wet paper in the drying unit, the thickness of the recycled paper, the outside air temperature, The amount of steam supplied to the space area of the mounting section using at least one of the outside air humidity, the travel distance of the water absorption belt that transports the wet paper while absorbing it, the type of the used paper, and the pressing force of the press roller that presses the wet paper Adjust.

Furthermore, in each said structure, the cover member which covers the space area | region of a mounting part was provided.

Furthermore, the used paper recycling apparatus of the present invention is obtained by a pulp preparation unit for preparing recycled pulp from used paper, a paper making unit for forming wet paper from recycled pulp, a drying unit for drying wet paper, and drying wet paper. In a used paper recycling processing apparatus comprising a placement unit for placing the recycled paper that has been placed, it has a humidifying means for humidifying the atmosphere in the space area of the placement unit, and the addition of adding an additive to the moisture used for humidification An agent supply unit was provided.

As described above, according to the present invention, it is possible to manufacture recycled paper adjusted to an appropriate moisture content by humidifying the atmosphere in the space region of the placing portion by the humidifying means. Further, the humidifying means includes a steam generation source for generating steam, and a steam path in which the steam generation source and the space area of the mounting portion are communicated, and the steam path is directed toward the recycled paper of the mounting portion. Since the steam supply duct that opens in this manner is installed, the steam generated in the steam generation source can be easily guided to the mounting portion, and the atmosphere in the space region of the mounting portion can be humidified.

The steam generation source is generated in at least one of the pulper device and the drying device when the pulp preparation device disintegrates the waste paper in the pulp preparation unit and the drying device that dries the wet paper in the drying unit. Energy can be effectively used by using steam for humidification of the mounting portion.

Furthermore, the humidifying means, when a blower is provided in at least one of the steam generation source or the steam path, can deliver a large amount of steam to the placement unit by the blower and efficiently humidify the placement unit. Can do.

Furthermore, when the wet paper is dried so that the moisture content of the recycled paper that has passed through the drying unit is lower than the moisture content of the recycled paper placed on the placing portion, The recycled paper can be adjusted to an appropriate moisture content after sufficiently drying.

Further, the humidifying means includes a steam supply amount adjusting means for adjusting an amount of steam supplied to the space area of the mounting portion, and the steam supply amount adjusting means includes a supply amount of steam supplied to the mounting portion through a steam path, and Since the ratio of the amount of steam exhausted to the outside of the steam path is adjusted , it is possible to supply the required amount of steam to the mounting portion while maintaining the drying efficiency.

Further, the steam supply amount adjusting means includes the temperature or humidity of the atmosphere in the space area of the placement unit, the heating temperature of the drying device that dries the wet paper in the drying unit, the thickness of the recycled paper, the outside air temperature, the outside air humidity, the wet paper When adjusting the amount of steam to be supplied to the space area of the placement section using as an index at least one of the travel distance of the water absorbing belt that transports the paper while absorbing water, the type of used paper, and the pressing force of the press roller that presses the wet paper A necessary amount of steam can be supplied to the placement unit according to the environmental conditions of each season, the processing conditions of the waste paper, and the like.

Furthermore, when a covering member that covers the space area of the placement section is provided, the space area of the placement section can be efficiently humidified in a short time.

Furthermore, since the additive supply unit for adding the additive to the moisture used for humidification is provided, the predetermined content of the additive in the recycled paper is obtained by humidifying with the water to which the additive has been added from the additive supply unit. Functions can be added.

It is the schematic which shows the structure of the first half process of the used paper reproduction | regeneration processing apparatus which concerns on one Embodiment of this invention. It is the schematic which shows the structure of the latter half process of the said used paper reproduction | regeneration processing apparatus. It is a top view of the structure of the latter half process of the said used paper reproduction | regeneration processing apparatus. It is the schematic which shows the structure of the first half process of the used paper reproduction | regeneration processing apparatus which concerns on other embodiment of this invention. It is the schematic which shows the structure of the latter half process of the said used paper reproduction | regeneration processing apparatus. It is a top view of the structure of the first half process of the said used paper reproduction | regeneration processing apparatus. It is the schematic which shows the structure of the latter half process of the used paper reproduction | regeneration processing apparatus which concerns on other embodiment of this invention. It is a top view which shows the structure of the latter half process of the said used paper reproduction | regeneration processing apparatus. It is the schematic which shows the structure of the latter half process of the said another used paper recycling processing apparatus of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
1 and 2 are schematic views showing the configuration of the used paper recycling processing apparatus 1, and FIG. 3 is a plan view of the rear part of the used paper recycling processing apparatus 1. FIG. The used paper recycling apparatus 1 includes a pulp preparation unit 81 that prepares recycled pulp from used paper, a paper making unit 82 that forms a strip-shaped wet paper from the recycled pulp, a drying unit 83 that dries the strip-shaped wet paper, A cutting unit 15 that cuts the belt-shaped recycled paper obtained by drying into a set size, and a paper receiving unit 85 on which the sheet of recycled paper 64 cut by the cutting unit 15 is placed.

As shown in FIG. 1, the pulp preparation unit 81 is accommodated in a first casing 19 installed at the front portion of the used paper recycling apparatus 1. As shown in FIG. 2, the paper making unit 82, the drying unit 83, and the cutting unit 15 are accommodated in a second casing 41 installed at the rear part of the used paper recycling processing apparatus 1. The paper receiver 85 is disposed behind the second casing 41.

The pulp preparation unit 81 stores the paper material storage unit 3 that stores the paper material 2 that is shredded waste paper, the paper feeding device 5 that supplies the waste paper 4 to the paper material storage unit 3, and the paper material storage unit 3. The paper material transport unit 86 that transports the paper material 2 that has been transported, the weighing unit 6 that weighs the paper material 2 transported by the paper material transport unit 86, and the paper material 2 that has been weighed by the weighing unit 6 A pulper device 9 for producing the pulp suspension 8, a storage tank 10 for storing the pulp suspension 8 obtained by the pulper device 9, and a deinking for deinking the pulp suspension 8 stored in the storage tank 10. A black ink device 11 is provided.

The paper material storage unit 3 includes a shredder 21 that shreds the waste paper 4 supplied from the paper feeding device 5 and a storage container 22 that stores the paper 2 made of the shredded waste paper 4. . The paper feeding device 5 is provided at the front portion of the first casing.

The paper material transport unit 86 includes a delivery device 23 that feeds the paper material 2 in the storage container 22 downward, and a blower transport unit 87 that transports the fed paper material 2 by the air flow 17 and discharges it to the measuring unit 6. . The blower conveyance unit 87 supplies the conveyance air to the paper material passage duct 16 to generate the air flow 17 that flows from the sending device 23 toward the measuring unit 6, and the paper material sent by the sending device 23. 2, a dispersion cyclone 24 for dispersing, a paper material passage duct 16 for passing the paper material 2 dispersed by the dispersion cyclone 24, and a discharge for discharging the conveyed paper material 2 through the paper material passage duct 16. And a cyclone for use.

One end of the paper material passage duct 16 is connected to a discharge port 26 formed in the dispersing cyclone 24, and the other end of the paper material passage duct 16 is connected to an inlet 27 formed in the discharge cyclone 7. The blower 18 has a discharge port 28 and a suction port 29, one end of the air supply duct 31 is connected to the discharge port 28, and the other end of the air supply duct 31 is formed in the dispersion cyclone 24. Connected to the air flow inlet 32. Accordingly, the discharge port 28 of the blower 18 communicates with the paper material passage duct 16 through the air supply duct 31 and the dispersion cyclone 24.

The discharge cyclone 7 is formed with an air flow discharge port 34 for discharging the air flow 17 flowing in from the flow inlet 27, and one end of an air supply return duct 35 (air supply return path) is connected to the air flow discharge port 34. The other end of the air return duct 35 is connected to the suction port 29 of the blower 18.

The pulper device 9 includes a pulper tank 37, a stirring device 38 provided in the pulper tank 37, and a water supply unit (not shown). The water supply unit supplies water to the pulper tank 37. The water supplied to the pulper tank 37 by the water supply unit includes tap water and white water collected by the paper making unit 82.

An additive supply unit (not shown) for adding an additive to the water supplied by the water supply unit is provided. The additive supply unit includes an additive tank, a pipe, and a valve (not shown). The additive stored in the additive tank is automatically added to the water supplied by the water supply unit via the pipe at a predetermined timing when the valve is opened. As the types of additives, antistatic agents, surfactants, fragrances, deodorants, antibacterial agents, sterilizers, bactericides, disinfectants, deodorants, stabilizers, anti-wrinkle agents, and the like can be used. .

The storage tank 10 has a stirring device 39 inside. The deinking device 11 includes a deinking tank 40 having a meandering flow path, and an air diffuser (not shown) that discharges a large number of bubbles from the lower portion of the deinking tank 40.

As shown in FIG. 2, the paper making unit 82 has a wet paper forming device 13 that forms the wet paper 12 by making the deinked pulp suspension 8 and a dehydrating device 20 that dehydrates the wet paper 12. ing.
The wet paper forming apparatus 13 includes a paper making wire 43 formed of a mesh belt wound around a plurality of rollers 42 and a head box 44 for supplying the deinked pulp suspension 8 onto the paper making wire 43. have.

The dehydrating apparatus 20 includes a plurality of rollers 46 and 46a and a water absorbing belt 47 made of felt wound around the rollers 46 and 46a. The wet paper 12 made from the pulp suspension 8 by the wet paper forming device 13 is transferred from the paper making wire 43 to the water absorbing belt 47 and is absorbed by the water absorbing belt 47 and dehydrated.

The drying unit 83 includes a drying device 14 that dries the dehydrated wet paper 12.
The drying device 14 includes a drying drum 49 that incorporates a heating device 48 (heater). A steel first conveyor belt 51 is wound around a drying drum 49 and a plurality of rollers 50 and 50a. Further, a second resin belt 53 made of a mesh is wound around a plurality of rollers 52, and is rolled onto the surface of the wet paper 12 being dried at a predetermined pressure, so that the surface of the recycled paper 64 is smoothed. A calendar roller 54 is provided. The first conveyor belt 51 and the second conveyor belt 53 overlap on the outer peripheral surface of the drying drum 49, and the wet paper 12 is dried by being pressed against the drying drum 49 with the wet paper 12 sandwiched therebetween.

A pair of rollers 46a and 50a are provided as pressing rollers at positions facing each other. The wet paper 12 is squeezed and dehydrated via the water absorbing belt 47 and the first conveying belt 51, and the wet paper 12 is absorbed by the water absorbing belt. A function of transferring from 47 to the first conveyor belt 51 is provided.

The cutting unit 15 performs a cutting process on the belt-shaped recycled paper 61 obtained by drying the wet paper 12, and turns the belt-shaped recycled paper 61 into a sheet of recycled paper 64.
The cutting unit 15 is provided with a metal cutter 60, a slitter 65, and the like that cut the strip-shaped recycled paper 61 dried by the drying device 14 into a predetermined size to obtain a sheet of recycled paper 64. On the downstream side of the cutting unit 15 and at the rear end of the second casing 41, a discharge port 62 for discharging the recycled paper 64 cut by the cutting unit 15 after drying is formed.

The paper receiving portion 85 constitutes a placement portion 88 on which the recycled paper 64 obtained by drying the wet paper 12 is placed. The paper receiving unit 85 is provided with a mounting table 71 for the recycled paper 64 and a covering member that covers the space area of the mounting unit 88. The mounting table 71 is installed so as to be movable up and down by a lifting means (not shown), and is adjusted so that the height from the discharge port 62 to the uppermost recycled paper 64 on the mounting table 71 is maintained at a predetermined value.

The covering member is constituted by a cover 72. The cover 72 is formed in a box shape so as to cover the mounting table 71 and the recycled paper 64 stacked on the mounting table 71, and separates the space region of the paper receiving unit 85 as the mounting unit 88 from the external region. The cover 72 is detachably installed on the apparatus main body so that the internal recycled paper 64 can be taken out. Further, the cover 72 is provided with a window portion 73 through which the recycled paper 64 inside can be visually recognized. A transparent window lid 74 made of resin is attached to the window portion 73 so that steam does not leak from the window portion 73.

The used paper recycling apparatus 1 includes a humidifying unit 89 that humidifies the atmosphere in the space area of the placement unit 88. The humidifying means 89 humidifies the atmosphere in the space area of the paper receiving portion 85 as the placement portion 88. The humidifying means 89 includes a steam supply device 66 and a steam supply amount adjusting means 69. The steam supply device 66 includes a steam generation source 90, a steam path 91, and a blower 68.

The steam generation source 90 generates steam. In the first embodiment, the steam generation source 90 includes the drying device 14 that dries the wet paper 12 in the drying unit 83. That is, the steam generated in the drying device 14 as the steam generation source 90 is supplied to the space area of the paper receiving portion 85 as the placement portion 88 and can be used for humidifying the atmosphere.

The steam path 91 includes a steam supply duct 67 whose one end communicates with the steam generation source 90 in the space region of the paper receiving portion 85 as the placement portion 88. One end of the steam supply duct 67 is connected to a connection opening 75 at the top of the cover 72 that forms a space area of the paper receiving portion 85 as the placement portion 88. The other end of the steam supply duct 67 is connected to a steam passage opening 93 formed on the upper surface of the second casing 41 above the drying drum 49 of the drying device 14. As shown in FIG. 3, the steam supply duct 67 is installed at the center in the width direction W perpendicular to the transport direction F of the recycled paper 61.

The space area of the paper receiving portion 85 as the placement portion 88 is a space around the placement table 71 on which the recycled paper 64 is placed. The space area of the paper receiving portion 85 as the placement portion 88 is a space covered with a cover 72 as a covering member. The steam path 91 is installed such that one end of the steam supply duct 67 is opened on the upper surface of the recycled paper 64 placed on the paper receiving portion 85 as the placement portion 88 so that the steam is blown from above.

The blower 68 sends the steam generated in the steam generation source 90 from the steam generation source 90 to the space area of the paper receiving unit 85 as the placement unit 88. A plurality of blowers 68 are suspended from the ceiling plate 45 of the second casing 41, and face the upper side of the drying drum 49 of the drying device 14. The plurality of blowers 68 are arranged side by side by a predetermined amount in the width direction W perpendicular to the transport direction F of the belt-shaped recycled paper 61 inside the ceiling plate 45 and as shown in FIG. The ceiling board 45 is provided with a plurality of small-diameter steam passage openings 93a, 93b, 93c at the positions where the blowers 68a, 68b, 68c are installed.

In FIG. 3, the end of the steam supply duct 67 is connected to the steam passage opening 93 b provided above the blower 68 b shown in the center. The central blower 68 b sucks the steam generated in the drying device 14 and sends it out into the steam supply duct 67.

The steam supply amount adjusting means 69 is provided in the middle of the steam supply duct 67. The steam supply amount adjusting unit 69 adjusts the amount of steam supplied to the space region of the placement unit 88. The steam supply amount adjusting means 69 includes an opening casing 96, an opening opening 97, an opening / closing door 98 and a swing shaft 99. The opening housing 96 is formed in a rectangular parallelepiped shape, and a steam supply duct 67 is connected to the front and rear side surfaces. The opening opening 97 is provided on the upper surface of the opening housing 96. The open / close door 98 can close the opening 97 for opening. Further, as shown by an arrow Y in FIG. 2, the open / close door 98 is configured to be swingable with the swinging shaft 99 being directed downward about the axis. The swinging operation of the opening / closing door 67 is performed either manually or automatically.

When the open / close door 98 is swung counterclockwise in FIG. 2 from the horizontal posture in which the opening 97 is closed, the opening 97 is opened and the steam in the steam supply duct 67 is opened. 97 is released into the atmosphere. The swing angle of the opening / closing door 98 can be arbitrarily set, and the ratio of the steam released to the atmosphere and the steam sent to the paper receiving portion 85 is adjusted by this setting. When the swinging angle of the open / close door 97 from the horizontal posture is 90 °, the open / close door 98 has a vertical posture shown by a two-dot chain line in FIG. In this state, the internal space of the opening housing 96 is divided into two in the front-rear direction by the open / close door 97, and the flow path to the downstream side is closed. As a result, the steam path 91 extending from the steam generation source 90 to the space area of the placement portion 88 is divided, so that it is not sent to the paper receiving portion 85 and all the steam is released into the atmosphere from the opening 97 for opening. The

The steam supply amount adjusting means 69 includes the temperature or humidity of the atmosphere in the space region of the placement unit 88, the heating temperature of the drying device 14 that dries the wet paper 12 in the drying unit 83, the thickness or quality of the recycled paper 64, and the outside air temperature. , The outside air humidity, the travel distance of the water absorbing belt 47 that transports the wet paper 12 while absorbing water, the type of the used paper 4 and the pressing force of the press rollers 46a and 50a that press the wet paper 12 as an index. The amount of steam supplied to the space area of the portion 88 is adjusted. Here, the travel distance of the water absorption belt 47 is the total travel distance from the start of use of the water absorption belt 47 transported while absorbing the wet paper 12, the travel distance from a predetermined time such as a cleaning process of the water absorption belt 47, and recycled paper. Any one or a combination of a value calculated from the total number of discharged sheets of 64, a value calculated from the usage time and speed of the water absorbing belt 47, or the like can be used. The quality of the recycled paper 64 is, for example, a high degree of whiteness by adjusting the deinking ratio, or a recycled paper obtained by causing some of the calendar rollers 54 to function as necessary when a plurality of calendar rollers 54 are provided. 64 means the quality of the surface smoothness or the like. The types of used paper 4 include types such as high-quality paper, copy paper, newspaper, and semi-finished paper, or the ratio of calcium carbonate contained in used paper 4.

In FIG. 3, a storage unit 92 for placing the recycled paper 64 produced by the used paper recycling processor 1 is provided above the blower 68a installed on the side of the central blower 68b. As shown in FIG. 2, the storage unit 92 is provided above the drying drum 49. And the storage part 92 is installed in the upper surface of the 2nd casing 41 shown in FIG. The storage unit 92 constitutes a placement unit 88 on which the recycled paper 64 obtained by drying the wet paper 12 is placed.

The storage unit 92 includes a mounting box 76 formed in a rectangular parallelepiped box shape. The mounting box 76 constitutes a covering member that covers the space area of the mounting portion 88. The mounting box 76 is formed hollow, and a steam supply opening 77 communicating with the lower steam passage opening 93a is provided on the lower surface of the mounting box 76. The atmosphere in the space region of the storage unit 92 separated from the outside by the mounting box 76 is humidified by the humidifying means 89. The steam passage opening 93 a and the steam supply opening 77 constitute a steam path 91 that communicates the steam generation source 90 and the space area of the mounting portion 88.

Inside the mounting box 76, a stool-shaped mounting table 94 for mounting the recycled paper 64 is installed. In FIG. 3, a steam passage opening 93c provided above the blower 68c installed on the other side of the central blower 68b is open to the atmosphere.

Hereinafter, the operation of the first embodiment will be described. Waste paper 4 supplied from the supply device 5 shown in FIG. 1 is shredded by a shredder 21 to become a paper material 2, and the paper material 2 is stored in a storage container 22.
By operating the air blower 18, the air flow 17 discharged from the discharge port 28 of the air blower 18 flows through the air feed duct 31 and flows into the dispersion cyclone 24 from the air flow inlet 32. The air flow 17 is discharged from the discharge port 26 of the dispersion cyclone 24, then flows through the air supply return duct 35 and returns to the suction port 29 of the blower 18.

Thus, a circulation path is formed in which the air flow 17 flows from the discharge port 28 of the blower 18 through the air supply duct 31, the paper material passage duct 16, and the air supply return duct 35, returns to the suction port 29, and flows out from the discharge port 28 again. Is done.

In this state, by operating the delivery device 23, the paper material 2 in the storage container 22 is sent out to the dispersion cyclone 24 and dispersed in the dispersion cyclone 24, and is further carried by the airflow 17 to make the paper material. It passes through the passage duct 16 and is discharged from the paper material discharge port 33 of the discharge cyclone 7 to the measuring unit 6.

When a predetermined amount of paper material 2 is weighed in the weighing unit 6, the paper material 2 in the weighing unit 6 is put into a pulper tank 37 of the pulper device 9. The paper material 2 is supplied from a water supply unit (not shown) in the pulper tank 37, stirred together with water by a stirring device 38, and disaggregated to become a pulp suspension 8. The pulp suspension 8 is stored in the storage tank 10 and deinked by the deinking device 11, and then supplied to the head box 44 of the wet paper web forming device 13 shown in FIG.

The pulp suspension 8 in the head box 44 is supplied onto the paper making wire 43 and is made into paper, thereby forming the wet paper 12. The wet paper 12 obtained in this way is transferred from the papermaking wire 43 to the water absorption belt 47, absorbed by the water absorption belt 47 and dehydrated.

The wet paper 12 thus dewatered is transferred from the water absorption belt 47 to the first conveyance belt 51, and then the surface is smoothed by the calender roller 54, and is sandwiched between the first conveyance belt 51 and the second conveyance belt 53. And is dried by the heat of the heating device 48 of the drying drum 49 to form a strip-shaped recycled paper 61. The belt-shaped recycled paper 61 is transported through the transport path 70, cut into a predetermined size sheet by the cutter 60 and the slitter 65 in the cutting unit 15, and then discharged from the discharge port 62.

The recycled paper 64 discharged from the discharge port 62 is sequentially placed on the placing table 71. When the used paper recycling processing apparatus 1 is operated, the recycled paper 64 is sequentially discharged from the discharge port 62, and when the height of the recycled paper 64 placed on the placing table 71 becomes higher, the placing table 71 is lowered by the lifting means. . Thus, the height from the discharge port 62 to the uppermost recycled paper 64 on the mounting table 71 is adjusted to be constant.

In such a series of recycled paper manufacturing processes, when the wet paper 12 is dried by the drying device 14, the moisture of the wet paper 12 evaporates to generate steam. This steam passes through the steam passage opening 93 b by the blower 68 b, is sent to the steam supply duct 67, flows through the steam supply duct 67, and is supplied to the space region of the mounting portion 88. Thereby, the humidity in the space area of the paper receiving portion 85 as the placement portion 88 increases.

In this way, the atmosphere in the space region of the paper receiving portion 85 is humidified by the humidifying means 89, so that the dried recycled paper 64 absorbs moisture while it is placed on the placement table 71, and the recycled paper 64 has an appropriate water content. Stored at a rate adjusted.

When the recycled paper 64 on the mounting table 71 of the paper receiving unit 85 becomes full and cannot be loaded on the mounting table 71, the recycled paper 64 is taken out from the mounting table 71, and the storage unit 92 on the second casing 41. To store on the mounting table 94 of the storage unit 92. In the storage unit 92, the steam generated in the drying device 14 passes through the steam passage opening 93 a and the steam supply opening 77 as the steam path 91 by driving the blower 68 a, and the storage unit 92 as the mounting unit 88. Supplied to the space area. As a result, the atmosphere in the space region of the storage unit 92 is humidified, and the humidity in the mounting box 76 increases. Therefore, by humidifying the atmosphere in the space area of the storage unit 92 with the humidifying means 89, the moisture absorbed by the paper receiving unit 72 is not lost while the recycled paper 64 is being placed in the placement box 76. The recycled paper 64 can be stored while retaining water in an appropriate state. Further, the recycled paper 64 is placed on the placing table 94 so that the steam supply opening 77 is not blocked.

For this reason, even when the recycled paper 64 is manufactured in a limited space such as an office, the paper receiving unit 85 and the storage unit 92 as the loading unit 88 can perform humidity control processing, and an appropriate moisture content The recycled paper 64 adjusted to the above can be manufactured. As described above, since the moisture content of the recycled paper 64 is adjusted, the recycled paper 64 manufactured by the used paper recycling processing apparatus 1 can be immediately printed by a copying machine or another printing machine, and printing failure or conveyance failure. Etc. can be suppressed.

Further, the humidifying means 89 includes a steam generation source 90 that generates steam, and a steam path 91 in which the steam generation source 90 and the space area of the mounting portion 88 communicate with each other. Thus, the vapor can be easily guided to the placement portion 88 and the atmosphere in the space area of the placement portion 88 can be humidified.

Since the steam generation source 90 is the drying device 14 that dries the wet paper 12 in the drying unit 83, the steam generated in the drying device 14 is used for humidification of the placement unit 88, so that energy can be effectively used. It is.

The steam generated in the drying device 14 contains the additive added in the pulper device 9. Therefore, the additive is contained in the steam that is transported from the drying device 14 to the placement unit 88 and used for humidifying the recycled paper 64. Thus, the functions of each additive, that is, antistatic, deodorizing, deodorizing, antibacterial, sterilizing, sterilizing, sterilizing, wrinkle prevention, and the like can be imparted to the recycled paper 64.

Further, since the air blower 68 is suspended from the ceiling plate 45 constituting the drying device 14 as the steam generation source 90 in the humidifying means 89, a large amount of steam is guided to the placement unit 88 by the blower 68, and the placement unit 88. It can be used for humidification. In addition, by positively supplying the steam to the paper receiving unit 85 and the storage unit 92 by the blower 68, the space regions of the paper receiving unit 85 and the storage unit 92 can be reliably humidified.

Further, one opening of the steam supply duct 67 faces the surface of the recycled paper 64 so that steam is positively blown toward the upper surface of the uppermost recycled paper 64 on the mounting table 71 by the blower 68. By supplying to, the recycled paper 64 can be absorbed efficiently and reliably. In the storage unit 92, the recycled paper 64 is moved from the paper receiving unit 85 and stored, so that the moisture content of the recycled paper 64 once properly conditioned in the paper receiving unit 85 is maintained. it can.

The drying device 14 adjusts the moisture content of the recycled paper 61 by adjusting the heating by the drying drum 49 on the assumption that the recycled paper 64 absorbs moisture in the placing portion 88. For this reason, it is possible to prevent the water content of the recycled paper 64 from becoming excessive in the placing portion 88.

The amount of steam that passes through the steam supply duct 67 and is supplied to the paper receiver 85 is manually or automatically adjusted by the steam supply amount adjusting means 69. Then, a part of the steam flowing through the steam supply duct 67 is released into the atmosphere by adjusting the swing angle of the open / close door 98. The amount of steam supplied to the mounting portion 88 can be adjusted by adjusting the amount of steam released into the atmosphere.

The adjustment of the steam supply amount by the steam supply amount adjusting means 69 is performed according to the outside air temperature, the outside air humidity, the thickness or quality of the recycled paper 64, the type of the used paper, or the kind of additive contained in the recycled paper 64. Further, depending on the amount, the temperature or humidity of the atmosphere in the space region of the paper receiving portion 85, the travel distance of the water absorbing belt 47 that transports the wet paper 12 while absorbing water, the press rollers 46a that press the wet paper 12, The pressing force of 50a, the heating temperature of the drying device 14 for drying the wet paper 12 and the like can be used as indicators. The steam supply amount adjusting means 69 supplies a necessary amount of steam to the mounting portion 88 according to the environmental conditions for each season such as the winter season when the atmosphere is dry and the summer season when the atmosphere is humid. Can be adjusted.

Further, by humidifying the space area of the placement unit 88, generation of static electricity in the placement unit 88 can be suppressed, and occurrence of defective discharge of the recycled paper 64 in the paper receiving unit 85 can be suppressed.

Further, by using the steam generated in the drying device 14, it is not necessary to separately provide a steam generation source in the used paper recycling processing apparatus 1, and the cost can be reduced and the used paper recycling processing apparatus 1 can be reduced in size.

(Embodiment 2)
Next, a second embodiment will be described. As shown in FIG. 4, in the used paper recycling apparatus 1a according to the second embodiment, the pulper tank 37a of the pulper apparatus 9a forms a steam generation source 90a. And the vapor | steam generate | occur | produced in the pulper apparatus 9a is supplied to the space area | region of the mounting part 88a, and the atmosphere is humidified. Thus, the pulper device 9a constitutes the humidifying means 89a.

The steam supply device 66a includes a steam path 91a in which the pulper tank 37a and the space area of the mounting portion 88a are communicated with each other, and a blower 63 that sucks the steam generated in the pulper tank 37a and sends the steam into the steam path 91a. ing. The steam path 91a is constituted by a steam supply duct 67a. One end of the steam supply duct 67a is connected to the blower 63 installation position at the top of the pulper tank 37a. The steam supply duct 67a extends upward from the upper portion of the pulper tank 37a, passes through an opening 93d provided in the ceiling plate 95a of the first casing 19a, is bent above the ceiling plate 95a, and is mounted as shown in FIG. It extends to the space area of the paper receiving portion 85a as the placement portion 88a and is connected to the upper portion of the cover 72a.

Steam supply amount adjusting means 69a is provided in the middle of the steam supply duct 67a. In addition, a storage unit 92a constituting a placement unit 88a on which the recycled paper 64 is placed is installed on the upper surface of the ceiling plate 95a of the first casing 19a. The storage unit 92a includes a mounting box 76a, and a steam supply duct 67a is connected to a side surface of the mounting box 76a, as shown in FIG. . This branched steam supply duct 67c constitutes a steam path 91a.

Usually, in the recycled paper manufacturing process, the temperature in the pulper tank 37a rises to about 40 ° C. due to frictional heat generated with the disaggregation operation. For this reason, the water | moisture content of the pulp suspension 8 in the pulper tank 37a evaporates, and a vapor | steam is generated. The steam generated in the pulper tank 37a is sucked into the steam supply duct 67a by the drive of the blower 63, flows downstream, and is supplied to the paper receiving portion 85a constituting the placement portion 88a. A part of the steam flowing in the steam supply duct 67a flows into the branching steam supply duct 67c from the steam supply duct 67a and is supplied to the space area of the storage unit 92a. Thereby, the humidity in the space area | region of both the paper receiving part 85a and the storage part 92a rises.

In this way, by humidifying the atmosphere in the space region of the paper receiving portion 85a by the humidifying means 89a provided with the pulper tank 37a, the dried recycled paper 64 absorbs moisture when discharged from the discharge port 62, and the recycled paper 64 is removed. It can be mounted on the mounting table 71 in a state adjusted to an appropriate humidity one by one. Further, by humidifying the atmosphere in the space area of the storage unit 92a by the humidifying means 89a, the recycled paper 64 once adjusted to an appropriate moisture content in the paper receiving unit 85a is maintained in a high humidity state in the storage unit 92a. The moisture content can be prevented from decreasing. Therefore, the moisture content of the recycled paper 64 can be maintained even at a time when the atmosphere is easily dried.

And the vapor | steam generate | occur | produced in the pulper tank 37a is adding the additive to the water supplied from the water supply part of the pulper apparatus 9a similarly to the case described in the said Embodiment 1. FIG. Therefore, an additive is contained in the steam used for humidifying the recycled paper 64, and a function corresponding to the type of the additive can be imparted to the recycled paper 64. Other functions and effects are the same as those of the first embodiment, and the description thereof is omitted.

(Embodiment 3)
Next, a third embodiment will be described. 7 and 8 are schematic diagrams showing the configuration of the latter half process of the used paper recycling apparatus 1b according to the third embodiment. In the third embodiment, the steam generation source 90 is configured by the drying device 14 as in the first embodiment. The used paper recycling apparatus 1b shown in FIGS. 7 and 8 sets the installation position of the mounting box 76b installed on the upper surface of the ceiling plate 45b of the second casing 41b to the right in FIGS. 7 and 8 from directly above the blower 68d. The belt-shaped recycled paper 61 is shifted downstream in the transport direction F. The connection opening 75c provided in the left side surface of the mounting box 76b in FIG. 8 and the steam passage opening 93e provided in the ceiling plate 45b are communicated with each other by a steam supply duct 67b. In this way, the steam supply duct 67b is connected to the side surface of the mounting box 76b, so that it is not necessary to install the mounting table 94 unlike the mounting box 76 according to the first embodiment shown in FIG. Therefore, a lot of recycled paper 64 can be stored in the loading box 76b.

Furthermore, in the paper receiving portion 85b as the placement portion 88b of the used paper recycling processing apparatus 1b according to the third embodiment, as shown in FIG. 7, a steam passage opening 93f is provided in the bottom plate 99 of the cover 72b. A blower 80 is installed below the steam passage opening 93f. Thus, the air in the cover 72b is released to the atmosphere, and the blower 80 can actively guide the steam in the cover 72b to be discharged downward.

Then, the steam that has flowed into the space area of the placement portion 88b from the connection opening 75b provided in the top plate 101 of the cover 72b is absorbed by the recycled paper 64 and the moisture content of the recycled paper 64 is adjusted, It flows out downward from the passage opening 93f. As a result, a steam flow path can be formed in the space area of the placement portion 88b, and the steam generated by the steam generation source 90 can be urged to be supplied to the paper receiving portion 85b. Therefore, the drying efficiency in the drying device 14 as the steam generation source 90 can be improved.

7 and 8, a pair of locking members 100 are installed at a position above the discharge port 62b of the recycled paper 64 at a predetermined distance in the width direction. The locking member 100 has an L-shaped vertical cross section, and locks the rear lower portion of the top plate 101 of the cover 72b. The connection opening 75b provided at the substantially central portion of the top plate 101 through which the end of the steam supply duct 67b is inserted is formed in an elliptical shape slightly larger than the diameter of the steam supply duct 67b.

In order to remove the cover 72b from the second casing 41b, first, the cover 72b is moved rightward as indicated by an arrow S in FIG. Then, the top plate 101 of the cover 72b comes out of the front end portion of the locking member 100 and is not locked. At this time, since the steam supply duct 67b does not move forward, the steam supply duct 67b moves backward relative to the cover 72b. However, since the connection opening 75b is formed in an elliptical shape, the connection opening 75b is formed. The cover 72 can be moved forward without interference between the peripheral edge and the steam supply duct 67b.

Next, the cover 72b is lowered downward by a predetermined amount, and the lower end portion of the steam supply duct 67b is extracted from the connection opening 75b. Thus, the cover 72b can be removed from the second casing 41b. Then, the recycled paper 64 on the mounting table 71 can be taken out. To attach the cover 72b to the second casing 41b, an operation opposite to this may be performed.

(Embodiment 4)
Next, a fourth embodiment will be described. FIG. 9 is a schematic diagram showing the configuration of the latter half process of the used paper recycling apparatus 1c according to the fourth embodiment. The used paper recycling apparatus 1c according to Embodiment 4 is provided with a separate humidifier 79 as a steam generation source 90c. The steam from the humidifier 79 is discharged from the nozzle 84 installed in the space region of the placement portion 88c through the pipe 78 serving as the steam path 91c. As a result, regardless of the operating conditions of the drying device and the pulper device, the recycled paper 64 is optimized under the optimum conditions according to the moisture content of the recycled paper 64 placed on the paper receiving portion 85c and the storage portion 92c as the placement portion 88c. Can be humidified.

In the above embodiment, the space area of the placement portions 88 and 88a is covered with the cover member. However, the cover member is not necessarily required if the atmosphere in the space area of the placement portion can be humidified by the humidifying means. In addition, there may be no covering member.

Further, the humidifying means 89, 89a are connected to a steam generation source for generating steam, one end communicates with the space area of the placement portions 88, 88a, 88b, 88c, and the other end communicates with the steam generation sources 90, 90a, 90c. Although the steam paths 91, 91a, and 91c are provided, the steam generation source may not be provided integrally, and may be diverted from another device. In addition, the steam path may be omitted by providing a separate steam generation source in the mounting portion.

The steam generation sources 90, 90a, and 90c are the drying device 14 in the first and third embodiments, the pulper device 9a in the second embodiment, and the humidifier 79 in the fourth embodiment. All of the pulper device and the humidifier may be used simultaneously as a steam generation source, or any two of them may be combined.

In addition, the steam used for humidifying the space regions of the placement units 88, 88a, 88b, and 88c contains the additive added to the water from the additive supply unit, but the additive may not be added. Good. The additive supply unit is configured to add the additive to the water supplied from the water supply unit to the pulper tank 37, but the additive supply unit is located at a place other than the pulper device, that is, a storage tank, a deinking tank, a head box, An additive supply unit may be provided at other locations in the used paper recycling apparatus such as a wet paper forming device, a drying device, and a cutting unit, and the additive may be added at the location where the additive supply unit is installed.

When an additive supply unit is provided in a wet paper forming device, a drying device, a cutting unit, etc., and the additive is added after the wet paper is dried, the additive is added in a state that it is easily applied to recycled paper such as spray. The In addition, when a humidifier is provided as a humidifying unit separately from the drying device and the pulper device, an additive supply unit is provided in the humidifier so that a predetermined amount of additive can be added to the water tank of the humidifier. Can do.

The additive supply unit includes an additive tank, a pipe, and a valve, and the additive is automatically added. However, the additive supply unit may be manually added. When adding an additive manually, an additive supply part can be comprised by the upper opening of the water supply tank installed in the water supply part, for example. Moreover, when an additive supply part is provided in a storage tank, a deinking tank, a head box, etc., it can comprise by the upper opening of each tank of a storage tank, a deinking tank, and a head box. Furthermore, you may provide an additive supply part in the middle position of the distribution path | route of a pulp suspension. Thus, when providing an additive supply part in the middle of a distribution channel, a publicly known mechanism for adding an additive is installed.

Further, the humidifying means 89 and 89a have the blower in the steam generation source, but the blower may be provided in the steam path or may not have the blower, and the blower is provided in both the steam generation source and the steam path. It may be provided. Further, the drying unit 83 uses the wet paper so that the moisture content of the paper that has passed through the drying unit 83 is lower than the moisture content of the recycled paper 64 placed on the placement units 88, 88a, 88b, and 88c. 12 is dried, the moisture content of the paper that has passed through the drying unit 83 may be higher than the moisture content of the recycled paper placed on the placing unit, or both may be the same.

Further, the humidifying means 89, 89a includes the steam supply amount adjusting means 69 for adjusting the amount of steam supplied to the space areas of the placement portions 88, 88a, 88b, 88c, but the steam supply amount adjusting means is not provided. Also good. Further, the steam supply amount adjusting means 69 adjusts the ratio between the amount of steam supplied to the mounting portions 88, 88 a, 88 b, 88 c through the steam path 91 and the amount of steam exhausted to the outside of the steam path 91. However, such adjustment may not be performed. In addition, the steam supply amount adjusting means 69 includes the temperature or humidity of the atmosphere in the space area of the placement units 88, 88a, 88b, and 88c, the heating temperature of the drying device that dries the wet paper in the drying unit, the thickness of the recycled paper, The placement units 88, 88a are used as indicators of quality, outside air temperature, outside humidity, travel distance of a water absorbing belt that transports while absorbing wet paper, type of used paper, and pressing force of a press roller that presses wet paper. , 88b, 88c, the amount of steam supplied to the space region is adjusted, but another value may be used as an index, and the amount of steam may not be adjusted.

Further, the steam supply amount adjusting means 69 includes an opening casing 96, an opening opening 97, an opening / closing door 98, and a swing shaft 99. However, other configurations, for example, an air release valve whose opening degree can be adjusted, three-way A valve device or the like may be used.

Further, in the second embodiment, the mounting box 76a of the storage unit 92a has a branching steam supply duct 67c connected to the side surface and supplies steam from the side surface of the mounting box 76a to the storage unit 92a. Instead of this, steam may be supplied from the bottom surface of the mounting box. In this case, a steam supply opening constituting a steam path is formed on the bottom surface of the mounting box. In FIG. 4, the case where the steam supply opening 77a is formed on the bottom surface of the mounting box 76a is indicated by a rough broken line. The steam supply opening 77a is connected to the steam supply duct 67d via a steam passage opening 93g formed at a position facing the ceiling plate 95a of the first casing 19a. The steam supply duct 67d is connected to a midway position of the steam supply duct 67a. Thus, the steam supply duct 67d branches from the steam supply duct 67a inside the first casing 19a. The steam supply duct 67d constitutes a steam path 91a.

DESCRIPTION OF SYMBOLS 1 Waste paper recycling apparatus 3 Storage part 8 Pulp suspension 9, 9a Pulper apparatus 12 Wet paper 14 Drying apparatus 64 Recycled paper 63, 68, 80 Blower 69 Steam supply adjustment means 81 Pulp preparation part 82 Paper making part 83 Drying part 88 , 88a, 88b, 88c Placement unit 89, 89a Humidification means 90, 90a, 90b, 90c Steam generation source 91, 91a, 91c Steam path

Claims (8)

Pulp preparation unit for preparing recycled pulp from waste paper, paper making unit for forming wet paper from recycled pulp, drying unit for drying wet paper, and placement unit for placing recycled paper obtained by drying wet paper in the used paper recycling apparatus comprising bets, have a humidifying means for humidifying the atmosphere in the space area of the mounting portion, the humidifying means includes a steam generating source for generating steam, the spatial region of the mounting portion and the vapor source And a steam path that is communicated with the steam path, and a steam supply duct that opens toward the recycled paper of the loading portion is installed in the steam path . 2. The used paper recycling apparatus according to claim 1, wherein the steam generation source is at least one of a pulper device that disaggregates used paper in a pulp preparation unit and a drying device that dries wet paper in a drying unit. Pulp preparation unit for preparing recycled pulp from waste paper, paper making unit for forming wet paper from recycled pulp, drying unit for drying wet paper, and placement unit for placing recycled paper obtained by drying wet paper And a humidifying means for humidifying the atmosphere in the space area of the placing section, and the humidifying means includes a steam supply amount adjusting means for adjusting the amount of steam supplied to the space area of the placing section. And a steam supply amount adjusting means for adjusting a ratio between a supply amount of steam supplied to the mounting portion through the steam path and an exhaust amount of steam exhausted to the outside of the steam path. . The steam supply amount adjusting means includes the temperature or humidity of the atmosphere in the space area of the placement unit, the heating temperature of the drying device that dries the wet paper in the drying unit, the thickness or quality of the recycled paper, the outside air temperature, the outside air humidity, the wet paper Adjusting the amount of steam supplied to the space area of the placement section using as an index at least one of the travel distance of the water absorbing belt that transports the paper while absorbing water, the type of used paper, and the pressing force of the press roller that presses the wet paper The used paper recycling apparatus according to claim 3, wherein: Pulp preparation unit for preparing recycled pulp from waste paper, paper making unit for forming wet paper from recycled pulp, drying unit for drying wet paper, and placement unit for placing recycled paper obtained by drying wet paper The waste paper recycling apparatus comprises a humidifying means for humidifying the atmosphere in the space area of the placement unit, and an additive supply unit for adding an additive to the moisture used for humidification is provided. Waste paper recycling processor. The humidifying means includes a steam generation source for generating steam, a steam path in which the steam generation source and the space area of the mounting portion are communicated, and a blower provided in at least one of the steam generation source and the steam path; A used paper recycling apparatus according to any one of claims 1 to 5, further comprising: The drying unit dries the wet paper so that the moisture content of the recycled paper that has passed through the drying unit is lower than the moisture content of the recycled paper placed on the placing unit. The used paper recycling apparatus of any one of 6. The used paper recycling apparatus of any one of Claims 1 thru | or 7 which provided the covering member which covers the space area | region of a mounting part.

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