JP5606085B2 - Paper material supply device and used paper recycling processing device - Google Patents

Description

  The present invention relates to a paper material supply device that supplies a paper material to a target location such as a metering unit, and a used paper recycling apparatus that includes the paper material supply device.

  Conventionally, as a used paper recycling apparatus for producing recycled paper from used paper, for example, a pulper device for producing pulp suspension by breaking up used paper (hereinafter referred to as paper material) shredded by a paper shredder. Some of them include a deinking device for deinking a pulp suspension obtained by a pulper device and a papermaking device for papermaking the deinked pulp suspension.

  As shown in FIG. 14, weighing means 92 for weighing the paper material 90 and feeding it into the pulper device 91 is provided above the pulper device 91. A paper material supply device 93 that supplies the paper material 90 to the measuring means 92 is provided above the measuring means 92. The paper material supply device 93 includes a hopper 94 that stores the paper material 90, a discharge unit 95 that discharges the paper material 90 in the hopper 94 to the weighing unit 92, and a feeder that sends the paper material 90 from the hopper 94 to the discharge unit 95. 96. The hopper 94 and the feeder 96 constitute a paper material input unit 97.

  According to this, the paper material 90 is once stored in the hopper 94 of the paper material supply device 93, and the paper material 90 in the hopper 94 is sent out to the discharge unit 95 by the feeder 96 and discharged from the discharge unit 95 to the measuring means 92. Is done. When the amount of the paper material 90 to be weighed by the weighing means 92 reaches a predetermined amount, the weighing means 92 puts the predetermined amount of paper material 90 into the pulper device 91 as shown by the phantom line in FIG. As a result, a pulp suspension is generated in the pulper device 91. The paper material supply device 93 having the above-described configuration is described in, for example, Patent Document 1 below.

JP2008-133559

  However, in the above-described conventional apparatus, the arrangement position of the paper material input unit 97 (that is, the hopper 94 and the feeder 96) of the paper material supply device 93 is limited to the position directly above the discharge unit 95. There is a problem that the placement position of the input portion 97 is fixed, and the degree of freedom in design is low. Thereby, the arrangement height of the paper material input unit 97 increases and becomes high, and it is difficult to reduce the arrangement height of the paper material input unit 97.

  The present invention provides a paper supply device and a used paper recycling apparatus that have a high degree of design freedom and can prevent the paper material from scattering when the paper material is discharged from the discharge device to the target location. The purpose is to provide.

In order to achieve the above object, a used paper recycling apparatus according to the first aspect of the present invention includes a pulper device, a metering unit for metering the amount of paper material to be fed into the pulper device, and paper for supplying the paper material to the metering unit. A material supply device,
Paper material supply equipment
A hollow transfer passage member having a transfer space therein;
A paper material input unit provided on the upstream side of the transfer path member, and inputs the paper material into the transfer path member;
A discharge device that is provided downstream of the transfer passage member and discharges the paper material from the transfer passage member to the measuring unit ;
A fan that blows air into the transfer passage member and generates an air current that flows the paper material that has been input into the transfer passage member from the paper material input unit to the discharge device ;
The discharge device includes a discharge unit main body, an introduction port for introducing the paper material in the transfer passage member into the discharge unit main body together with the air flow, and a paper for discharging the paper material introduced into the discharge unit main body from the introduction port to the measurement unit . A material discharge port, an air flow escape port for letting the air flow introduced from the introduction port into the discharge unit main body to the outside of the discharge unit main body, and an air flow outflow suppression means for suppressing the air flow from flowing out from the paper material discharge port to the measuring unit It is what has.

According to this, by driving the blower to blow air into the transfer passage member, an air flow is generated in the transfer passage member from the upstream paper material input unit to the downstream discharge device. By feeding the paper material into the transfer passage member from the paper material input portion, the paper material is carried on the airflow from the upstream side to the downstream side, and discharged from the inlet of the discharge device together with the airflow. After being introduced into the main part of the paper, it is discharged from the paper material outlet to the measuring part . Thus, the paper material is supplied to the measuring unit by the paper material supply device and is measured. When the amount of the paper material supplied to the measuring unit reaches a predetermined measurement value, the paper material is input from the measuring unit to the pulper device.

Also, the air flow introduced into the discharge unit main body from the introduction port together with the paper material is discharged from the discharge port to the outside of the discharge unit main body. At this time, since the airflow outflow suppression means suppresses the airflow from flowing out from the paper material discharge port to the measuring unit , the paper material discharged from the paper material discharge port to the measuring unit is prevented from being scattered by the airflow. be able to.

In addition, as described above, the paper material is transported to the weighing unit in the air flow in the transfer passage member, and therefore, the discharge device may be disposed in the measurement unit , and the paper material input unit may be placed away from the discharge device. It becomes possible to arrange. Therefore, the arrangement position of the paper material input unit is not limited to the position just above the discharge device as in the prior art, and the degree of freedom in design is increased.

In the used paper recycling apparatus of the second invention, the blower has a suction port and a discharge port,
The transfer passage member is connected between the paper material input unit and the inlet of the discharge device,
The discharge port of the blower communicates with the transfer passage member via the paper material input unit,
The airflow outflow suppression means is composed of a hollow return passage member connected between the airflow escape port and the suction port of the blower.

According to this, by driving the blower, air is supplied from the discharge port of the blower into the transfer passage member, and an airflow flowing from the paper material input unit to the discharge device is generated in the transfer passage member.
In addition, the airflow introduced into the discharge unit main body from the introduction port together with the paper material flows through the return passage member from the airflow escape port and is sucked into the suction port of the blower, and then again into the transfer passage member from the discharge port. Supplied. At this time, since the air flow is suppressed from flowing out from the paper material discharge port to the measuring unit by the suction pressure of the blower, the paper material discharged from the paper material discharge port to the measuring unit is prevented from being scattered by the air flow. be able to.

The used paper recycling apparatus in the third aspect of the invention is provided with an adjusting means for adjusting the amount of airflow flowing from the airflow escape port to the return passage member.
According to this, when the amount of the airflow flowing from the airflow escape port to the return passage member is increased, the outflow amount of the airflow flowing out from the paper material discharge port to the measuring unit is greatly suppressed. Further, if the amount of airflow flowing from the airflow escape port to the return passage member is reduced, the amount of airflow flowing out from the paper material discharge port to the measuring section is increased accordingly. As described above, by adjusting the amount of airflow that flows from the airflow outlet to the return passage member, the amount of airflow that flows out from the paper material discharge port to the measuring section can be adjusted. It is possible to prevent the paper material from remaining in the discharge unit main body while suppressing the outflow amount of the airflow.

In the used paper recycling apparatus according to the fourth aspect of the present invention, a swirl flow generation chamber is formed in the discharge unit main body to convert the air flow introduced from the inlet into a swirl flow.
A paper material discharge port is located at one end of an axial center passing through the central portion of the swirl flow, and an airflow escape port is located at the other end.

According to this, the paper material is carried on the air flow and is transported from the upstream side to the downstream side in the transfer passage member, and is introduced into the swirl flow generation chamber in the discharge unit main body from the introduction port of the discharge device together with the air flow. It is separated from the air current by the centrifugal force of the swirling flow generated in the chamber, and discharged from the paper material discharge port to the measuring section .

Also, the airflow introduced into the swirl flow generation chamber in the discharge unit main body from the introduction port together with the paper material becomes a swirl flow in the swirl flow generation chamber, and is then discharged from the air flow outlet to the outside of the discharge unit main body.
The waste paper recycling apparatus in the fifth aspect of the present invention has a solid-gas separation chamber for separating the paper material from the airflow by changing the flow direction of the airflow introduced from the introduction port in the discharge unit main body,
The airflow outflow suppression means includes a delivery device that sends out the paper material in the solid-gas separation chamber from the paper material discharge port to the measuring unit in a state where the paper material discharge port is closed.

According to this, the paper material is carried on the airflow and is transported from the upstream side to the downstream side in the transfer passage member, and is introduced into the solid-gas separation chamber in the discharge unit main body from the inlet of the discharge device together with the airflow. It is separated from the air current in the chamber and sent out from the paper material discharge port to the measuring section by the delivery device.

In addition, the airflow introduced into the solid-gas separation chamber in the discharge body from the introduction port together with the paper material changes the flow direction in the solid-gas separation chamber, and is then discharged from the airflow outlet to the outside of the discharge body. At this time, since the paper material discharge port is closed by the delivery device, the flow of air from the paper material discharge port to the measuring unit is suppressed, and thereby the paper material discharged from the paper material discharge port to the measuring unit. Can be prevented from being scattered by the air current.

In the used paper recycling apparatus according to the sixth aspect of the invention, the paper material is waste paper that has been shredded in the finishing process when shredded waste paper or paper making.
According to this, not only waste paper shredded by a paper cutter or the like, but also waste paper shredded in the finishing process can be recycled without waste, and the generation of dust can be reduced.
The seventh invention is a paper material supply device for supplying a paper material to a target location,
A hollow transfer passage member having a transfer space therein;
A paper material input unit provided on the upstream side of the transfer path member, and inputs the paper material into the transfer path member;
A discharge device that is provided on the downstream side of the transfer path member and discharges the paper material from the transfer path member to a target location;
A blower for generating an air flow that blows air into the transfer passage member and flows the paper material introduced into the transfer passage member from the paper material input portion to the discharge device;
The discharge device includes a discharge unit main body, an introduction port that introduces the paper material in the transfer passage member into the discharge unit main body together with an air flow, and a paper that discharges the paper material introduced from the introduction port into the discharge unit main body to a target location. A material discharge port, an air flow escape port for letting the air flow introduced from the introduction port into the discharge unit main body to the outside of the discharge unit main body, and an air flow outflow suppression means for suppressing the air flow from flowing out from the paper material discharge port to the target location And
A solid-gas separation chamber for separating the paper material from the airflow by changing the flow direction of the airflow introduced from the introduction port is formed in the discharge unit main body,
The airflow outflow suppression means comprises a delivery device that sends out the paper material in the solid-gas separation chamber from the paper material discharge port to the target location in a state where the paper material discharge port is closed.

  As described above, according to the present invention, since the airflow is suppressed from flowing out from the paper material discharge port to the target location by the airflow outflow suppression means, the paper material discharged from the paper material discharge port to the target location is caused by the airflow. It is possible to prevent scattering.

  In addition, since the paper material is transported to the target location on the airflow in the transfer passage member, the discharge device may be disposed at the target location, and the paper material input portion may be disposed at a location away from the discharge device. It becomes possible. Therefore, the arrangement position of the paper material input unit is not limited to the position directly above the discharge device, and the degree of freedom in design is increased.

It is the schematic which shows the main structures of the used paper reproduction | regeneration processing apparatus in the 1st Embodiment of this invention. It is a figure of the paper material supply apparatus with which the used paper reproduction | regeneration processing apparatus was equipped. FIG. 2 is an enlarged view of a discharge device and a weighing unit of the paper material supply device. FIG. 3 is a partially cutaway plan view of the discharge device of the paper supply device. It is a perspective view of the air blower of a paper material supply apparatus. It is a partially notched top view of the air blower of a paper material supply apparatus. It is a XX arrow line view in FIG. FIG. 3 is a plan view of a measuring unit of the used paper recycling processing apparatus. It is a figure of the paper material supply apparatus with which the used paper reproduction | regeneration processing apparatus in the 2nd Embodiment of this invention was equipped. FIG. 2 is an enlarged view of a discharge device and a weighing unit of the paper material supply device. It is a longitudinal cross-sectional view of the discharge device of the paper supply device. It is a XX arrow line view in FIG. It is a figure of the opening / closing apparatus of a paper material supply apparatus, (a) is a longitudinal cross-sectional view, (b) shows a cross-sectional view. It is a figure of the conventional paper material supply apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. FIG. 1 is a schematic diagram showing the configuration of a used paper recycling processing apparatus 1. The used paper recycling processing apparatus 1 is a unit comprising a used paper pulp manufacturing device 2, a deinking device 3, a paper making device 4, a finishing device 5, and a drainage processing device 6. It is a small one provided.

  The used paper pulp manufacturing apparatus 2 disassembles used paper 7 (hereinafter referred to as paper material 7) shredded by a paper shredder or the like to produce a pulp suspension 9, and inputs the pulp paper into the pulper apparatus 10. A measuring unit 11 (an example of a target location) that measures the input amount of the paper material 7 to be measured, and a paper material supply device 12 that supplies the paper material 7 to the measuring unit 11.

  The deinking device 3 deinks the pulp suspension 9 produced in the pulper device 10. The paper making device 4 makes the pulp suspension 9 produced by the pulper device 10 and then deinked by the deinking device 3, and dries the wet paper obtained by the paper making. The finishing device 5 finishes the papermaking device 4 by drying the wet paper and cutting it into a predetermined size to obtain the recycled paper 14. Further, the drainage treatment device 6 is for treating the drainage generated in each of the deinking device 3 and the papermaking device 4.

Below, the structure of the paper supply apparatus 12 is demonstrated.
As shown in FIG. 2, the paper material supply device 12 is provided on the upstream side of the transfer duct 17 (an example of a transfer passage member) having a circular tube hollow shape having a transfer space 16 therein, and the transfer duct 17. A paper material input unit 18 that inputs the paper material 7 into the transfer duct 17, and a discharge device 19 that is provided on the downstream side of the transfer duct 17 and discharges the paper material 7 from the transfer duct 17 to the measuring unit 11; And a blower 20 that generates an airflow 21 that blows air into the transfer duct 17 and causes the paper material 7 that has been input from the paper material input unit 18 into the transfer duct 17 to flow to the discharge device 19.

  The paper material input unit 18 includes a hopper 23 (an example of a storage unit) that stores the paper material 7, a sending unit 24 that feeds the paper material 7 in the hopper 23 into the transfer duct 17, and a sending unit 24. A dispersion cyclone 25 (an example of a dispersion unit) that disperses the paper material 7 to be delivered in the transfer duct 17 is provided.

  The dispersion cyclone 25 transfers the paper material 7 together with the air supply, the paper material inlet 28 into which the paper material 7 sent out by the sending means 24 is input, the air flow inlet 29 into which the air supplied from the blower 20 flows. And a discharge port 30 for discharging into the duct 17.

  As shown in FIGS. 2 to 4, the discharge device 19 includes a discharge portion main body 33 having a cyclone structure in which a lower portion is a conical cylinder and an upper portion is cylindrical, and a paper material 7 in a transfer duct 17 together with an air flow 21. An introduction port 34 that is introduced into the discharge unit main body 33, a paper material discharge port 35 that discharges the paper material 7 introduced into the discharge unit main body 33 from the introduction port 34 to the measuring unit 11, and An airflow outlet 36 for letting the airflow 21 introduced into the outlet 33 to the outside of the discharge section main body 33, and an airflow outflow suppression means 37 for suppressing the airflow 21 from flowing out from the paper material discharge outlet 35 to the measuring section 11. doing.

  A swirl flow generating chamber 39 that changes the air flow 21 introduced from the introduction port 34 into a swirl flow 38 is formed in the discharge body 33. The introduction port 34 is provided in a tangential direction in the cylindrical portion of the discharge portion main body 33. Further, the airflow escape port 36 is provided at the upper end portion of the discharge portion main body 33. The paper material discharge port 35 is located at the lower end (one end) of the axis 40 passing through the center of the swirling flow 38, and the airflow escape port 36 is located at the upper end (the other end) of the axis 40. Further, the discharge body 33 is inclined at a predetermined angle A with respect to the horizontal plane.

  The transfer duct 17 is connected between the discharge port 30 of the dispersion cyclone 25 and the introduction port 34 of the discharge device 19, whereby the paper material input unit 18 and the discharge device 19 are connected via the transfer duct 17. Connected.

  As shown in FIGS. 5 to 7, the blower 20 includes a suction port 43 that sucks in air and a discharge port 44 that discharges the sucked air. As shown in FIG. 2, a circular tube hollow air supply duct 45 is connected between the discharge port 44 and the air flow inlet 29 of the dispersing cyclone 25. Thus, the discharge port 44 of the blower 20 communicates with the upstream side of the transfer duct 17 via the air supply duct 45 and the dispersion cyclone 25 of the paper material charging unit 18.

  The airflow outflow suppression means 37 includes a circular pipe return duct 47 (an example of a return passage member) connected between the airflow escape port 36 of the discharge device 19 and the suction port 43 of the blower 20. The ducts 17, 45 and 47 are flexible and flexible tubes made of rubber or the like.

  The blower 20 has adjusting means 49 for adjusting the flow rate of the airflow 21 flowing from the airflow outlet 36 of the discharge device 19 to the return duct 47. The adjustment means 49 has an adjustment chamber 50 formed on the suction side of the blower 20 and a plurality of adjustment holes 51 formed in the adjustment chamber 50. The adjustment hole 51 penetrates into and out of the adjustment chamber 50, and the suction port 43 communicates with the adjustment chamber 50.

  As shown in FIG. 3 and FIG. 8, the measuring unit 11 has a tray 54 that receives the paper material 7 discharged from the paper material discharge port 35, a support member 55 that supports the tray 54, and a support shaft 56. A swing device 57 that swings the support member 55 up and down between the receiving position B and the loading position C and a weight detector 58 that detects the weight of the paper material 7 received on the tray 54 are provided. .

  A support frame 59 that supports one end of the tray 54 from below is provided at the free end portion of the support member 55 so as to be rotatable around the support shaft 60. The weight detector 58 is provided at the base end portion of the support member 55 and supports the other end of the tray 54 from below.

Hereinafter, the operation of the above configuration will be described.
As shown in FIG. 2, when the blower 20 is driven and blown, the air discharged from the discharge port 44 of the blower 20 flows through the air supply duct 45, passes through the dispersion cyclone 25, and is transferred. It flows in the duct 17, flows into the return duct 47 through the discharge portion main body 33 of the discharge device 19, and is sucked into the suction port 43 of the blower 20 from the return duct 47. As a result, an air flow 21 is generated from the discharge port 44 of the blower 20 through the ducts 17, 45, 47, the dispersion cyclone 25, and the discharge device 19 and returning to the suction port 43.

  By operating the feeding means 24 to feed the paper material 7 in the hopper 23 into the dispersing cyclone 25, the paper material 7 is dispersed by the dispersing cyclone 25 and is transferred from the dispersing cyclone 25 together with air to the transfer duct 17. And is carried to the downstream side of the transfer duct 17 by riding on the airflow 21, and as shown in FIGS. 3 and 4, the discharge section main body 33 from the inlet 34 of the discharge device 19 together with the airflow 21. The swirl flow generation chamber 39 is introduced into the swirl flow generation chamber 39 and is moved outward by the centrifugal force of the swirl flow 38 (vortex flow) of the swirl flow generation chamber 39 and descends due to gravity. Discharged.

  Also, the airflow 21 (air) introduced into the swirl flow generating chamber 39 from the introduction port 34 together with the paper material 7 becomes a swirl flow 38 and flows down to the vicinity of the paper material discharge port 35, then changes its direction and is discharged. Ascending current flows along the axial center of the main body 33, flows from the airflow escape port 36 into the return duct 47, passes through the return duct 47, is sucked into the suction port 43 of the blower 20, and again from the discharge port 44. It is supplied into the air supply duct 45.

  At this time, the suction pressure of the blower 20 prevents the airflow 21 from flowing out from the paper material discharge port 35 to the measuring unit 11, and thus the paper material 7 discharged from the paper material discharge port 35 to the measuring unit 11 flows into the airflow. It is possible to prevent scattering by 21.

  Further, as shown in FIG. 6, since the outside air is sucked into the blower 20 through the adjustment hole 51 of the adjustment means 49, the blower 20 through the adjustment hole 51 can be reduced by reducing the size of the adjustment holes 51 or reducing the number. The amount of air sucked in is reduced, and the amount of air sucked into the suction port 43 from the return duct 47 is increased accordingly. Thereby, the flow rate of the airflow 21 flowing from the airflow escape port 36 to the return duct 47 is increased, and the outflow amount of the airflow 21 flowing out from the paper material discharge port 35 to the measuring unit 11 is greatly suppressed.

  On the contrary, by increasing the size of the adjusting holes 51 or increasing the number of the adjusting holes 51, the amount of air sucked into the blower 20 through the adjusting holes 51 increases, and the air sucked into the suction port 43 from the return duct 47 correspondingly. The amount is reduced. As a result, the flow rate of the airflow 21 flowing from the airflow escape port 36 to the return duct 47 is decreased, and the outflow amount of the airflow 21 flowing out from the paper material discharge port 35 to the measuring unit 11 is increased.

  From the above, the outflow amount of the airflow 21 flowing out from the paper material discharge port 35 to the measuring unit 11 can be adjusted by changing the size or number of the adjustment holes 51. In particular, as shown in FIG. 3, the discharge body 33 is inclined at a predetermined angle A, and the paper material 7 is sufficiently discharged from the paper material discharge port 35 as the predetermined angle A decreases and approaches horizontal. Not easily remaining in the discharge portion main body 33. As a countermeasure, the paper material 7 can be reliably discharged from the paper material discharge port 35 by increasing the outflow amount of the airflow 21 flowing out from the paper material discharge port 35 to the measuring unit 11 as described above. Further, as the predetermined angle A increases and approaches 90 °, the paper material 7 is easily discharged from the paper material discharge port 35 by gravity, and thus flows out from the paper material discharge port 35 to the measuring unit 11 as described above. By reducing (or eliminating) the outflow amount of the airflow 21, it is possible to more reliably prevent the paper material 7 discharged from the paper material discharge port 35 from being scattered by the airflow 21.

Note that by closing all the adjustment holes 51, the outflow amount of the airflow 21 flowing out from the paper material discharge port 35 to the measuring unit 11 may be minimized or eliminated.
Further, as shown in FIG. 2, the paper material 7 is transported to the measuring section 11 at the target location by placing the paper material 7 on the airflow 21 in the transfer duct 17, and as shown in FIG. 11, the paper material input unit 18 can be arranged at a location away from the discharge unit main body 33. Therefore, the arrangement position of the paper material input portion is not limited to the position just above the discharge portion as in the conventional case, and the degree of freedom in design is increased.

  In addition, when the arrangement position of the paper material input unit 18 with respect to the arrangement position of the discharge unit main body 33 is changed, the ducts 17, 45, 47 bend (bend), so the paper material input unit 18, the discharge unit main body 33, and the blower. In a state where 20 is connected to each of the ducts 17, 45, and 47, the paper material input unit 18 can be easily moved with respect to the discharge unit main body 33. Thereby, a layout can be rearranged easily and freely.

  As shown in FIG. 3, when the paper material 7 is discharged to the tray 54 of the measuring unit 11, the support frame 59 rotates about the support shaft 60 in the sinking direction F according to the weight of the paper material 7. Then, the weight of the paper material 7 in the tray 54 is detected by the weight detector 58. When the detected weight of the paper material 7 reaches a prescribed weight (an example of a prescribed measurement value, for example, 100 g), the feeding means 24 stops operating and the feeding of the paper material 7 in the hopper 23 is stopped. Then, the swinging device 57 is activated, and the tray 54 together with the support member 55 swings from the receiving position B (see the solid line in FIG. 2) to the loading position C (see the phantom line in FIG. 2). The material 7 is thrown into the pulper device 10.

  Thereafter, the paper material 7 is disaggregated in the pulper device 10 to produce a pulp suspension 9, the pulp suspension 9 is deinked in the deinking device 3, and the wet paper obtained by papermaking is dried in the papermaking device 4. Then, the finished paper 5 is cut into a predetermined size to obtain the recycled paper 14.

(Second Embodiment)
In the first embodiment, as shown in FIG. 2, the discharge unit main body 33 of the discharge device 19 has a cyclone structure, but may have a structure other than the cyclone structure. For example, as 2nd Embodiment, as shown in FIGS. 9-13, the discharge part main body 33 has the solid-gas separation chamber 65 and the outflow chamber 66 which mutually communicate inside.

  As shown in FIG. 11, the introduction port 34 is formed in the upper part of the solid-gas separation chamber 65, the paper material discharge port 35 is formed in the lower end of the solid-gas separation chamber 65, and the airflow escape port 36 is formed in the outflow chamber 66. ing. A partition 67 is provided in the solid-gas separation chamber 65 in the vertical direction, and the solid-gas separation chamber 65 is divided into a first separation chamber 65 a and a second separation chamber 65 b by the partition 67.

  The upper part of the first separation chamber 65 a communicates with the introduction port 34, and the lower part of the first separation chamber 65 a communicates with the paper material discharge port 35. The upper part of the second separation chamber 65 b communicates with the airflow escape port 36 via the outflow chamber 66, and the lower part of the second separation chamber 65 b communicates with the paper material discharge port 35. In addition, a communication port 68 is formed in the lower part of the partition wall 67, and the first separation chamber 65a and the second separation chamber 65b communicate with each other via the communication port 68.

  The airflow outflow suppression means 37 closes the return duct 47 connected between the airflow escape port 36 and the suction port 43 of the blower 20 as shown in FIG. 9, and the paper material discharge port 35 as shown in FIG. In this state, the paper material 7 in the solid-gas separation chamber 65 is sent out from the paper material discharge port 35 to the measuring unit 11.

  The delivery device 69 includes a pair of rotatable delivery rollers 70 and 71 provided at the lower end of the discharge portion main body 33, and a rotation drive device 72 that rotates the delivery rollers 70 and 71 in opposite directions D and E. Have.

  As shown in FIGS. 11 and 12, the delivery rollers 70 and 71 feed the paper material 7 from both sides and feed downward from the inside of the solid-gas separation chamber 65, and downward from the lower end portion of the discharge portion main body 33. A pair of rotating shafts 74 provided in parallel to each other between the pair of provided plate portions 73 and a circular roller body 75 provided on the rotating shaft 74 are provided. The roller body 75 includes a core member 76 attached to the rotating shaft 74 and an outer peripheral member 77 provided on the outer peripheral portion of the core member 76.

  The outer peripheral member 77 is made of a flexible material having elasticity, such as sponge or rubber, so that both the delivery rollers 70 and 71 have flexibility that can be expanded and contracted in the radial direction. Note that the outer peripheral surfaces of both the delivery rollers 70 and 71 are in contact with each other. Further, the outer peripheral surface of each of the delivery rollers 70 and 71 and both end faces in the direction of the rotation axis are in contact with the peripheral edge of the paper material discharge port 35, so that the paper material discharge port 35 is moved by both the delivery rollers 70 and 71. Blocked.

  The rotation drive device 72 includes a drive gear 80 that is rotationally driven by an electric motor 79, and driven gears 81 and 82 provided on each rotation shaft 74. The electric motor 79 is provided on one plate portion 73. Both the driven gears 81 and 82 are provided outside the one plate portion 73 and mesh with each other. The driving gear 80 meshes with one driven gear 81.

  As shown in FIGS. 9 and 13, an opening / closing device 83 that opens and closes the flow path 45 a in the air supply duct 45 is provided in the middle of the air supply duct 45. The opening / closing device 83 includes a cylindrical casing 84 connected in the middle of the air supply duct 45, a circular opening / closing plate 85 rotatably provided in the casing 84, and an electric motor that rotates the opening / closing plate 85. Device 86. The casing 84 has a flow path 84 a communicating with the flow path 45 a of the air supply duct 45 inside.

  As shown by the phantom line in FIG. 13, by rotating the open / close plate 85 to the closed position S, the flow path 45 a in the air supply duct 45 is closed, and the supply of air from the blower 20 to the dispersion cyclone 25 is performed. The transfer of the paper material 7 is stopped. Further, as shown by a solid line in FIG. 13, by rotating the opening / closing plate 85 to the open position O, the flow path 45 a in the air supply duct 45 is opened, and air is supplied from the blower 20 to the dispersion cyclone 25. The paper material 7 is transferred.

Hereinafter, the operation of the above configuration will be described.
As shown in FIG. 9, the blower 20 is driven, and the opening / closing plate 85 of the opening / closing device 83 is rotated to the open position O to open the flow path 45a in the air supply duct 45 as shown by the solid line in FIG. In addition, an airflow 21 is generated from the discharge port 44 of the blower 20 through the ducts 17, 45, 47, the dispersion cyclone 25, and the discharge device 19 and returning to the suction port 43.

  By operating the feeding means 24, the paper material 7 in the hopper 23 is sent and dispersed into the dispersing cyclone 25, and is introduced into the upstream side in the transfer duct 17 from the dispersing cyclone 25 together with the air. 21 is carried downstream in the transfer duct 17 and flows into the first separation chamber 65a in the discharge portion main body 33 from the introduction port 34 of the discharge device 19 together with the airflow 21, as shown in FIG.

  The airflow 21 flowing into the first separation chamber 65a from the introduction port 34 together with the paper material 7 flows downward through the first separation chamber 65a, and flows from the first separation chamber 65a through the communication port 68 into the second separation chamber 65b. , Flows upward in the second separation chamber 65 b, passes through the outflow chamber 66, is discharged from the airflow outlet 36 to the return duct 47, flows through the return duct 47, and is sucked into the suction port 43 of the blower 20.

  Since the airflow 21 flowing into the solid-gas separation chamber 65 as described above greatly changes the flow direction when flowing from the first separation chamber 65a to the second separation chamber 65b, the paper material 7 is separated from the airflow 21, and the paper The material 7 remains in the lower part of the first and second separation chambers 65a and 66b.

  At this time, by driving the electric motor 79 of the rotation driving device 72 and rotating both the delivery rollers 70 and 71 in opposite directions D and E, the paper material 7 in the first and second separation chambers 65a and 66b is made. The paper is sandwiched between the feed rollers 70 and 71 and sent downward, and is discharged from the paper material discharge port 35 to the tray 54 of the measuring unit 11. At this time, since the paper material discharge port 35 is closed by both the delivery rollers 70 and 71, the flow of the airflow 21 from the paper material discharge port 35 to the measuring unit 11 is suppressed, and thereby the paper material discharge port 35. It is possible to prevent the paper material 7 discharged from the measuring unit 11 from being scattered by the air flow 21.

  Further, the operation of the delivery means 24 is stopped, and as shown by the phantom line in FIG. 13, the opening / closing plate 85 of the opening / closing device 83 is rotated to the closed position S to close the flow path 45a in the air feeding duct 45. In this state, the feed rollers 70 and 71 are rotated in opposite directions D and E, and the paper in the first and second separation chambers 65a and 66b is cut off. The material 7 can also be discharged from the paper material discharge port 35 to the tray 54 of the measuring unit 11.

  Further, when the paper material 7 is sandwiched between the sending rollers 70 and 71 and sent out, the outer peripheral member 77 of the sending rollers 70 and 71 is reduced in the radial direction, so that the paper material 7 is sent out smoothly and surely without difficulty. be able to.

  In each of the above embodiments, the waste paper 7 shredded by a paper cutter or the like is used as the paper material 7. However, the present invention is not limited to this. For example, as shown in FIG. The waste paper that has been shredded in the finishing process performed by the above may be used as the paper material 7. According to this, not only the waste paper 7, but also waste paper shredded in the finishing process can be recycled without waste, and the generation of dust can be reduced.

  In each of the above embodiments, as shown in FIG. 3, one weight detector 58 is provided at the base end of the support member 55, but as another embodiment, at the base end of the support member 55. A zero reference detector (not shown) and a plurality of weight detectors (not shown) may be provided. The zero reference detector detects the weight of the receiving tray 54 in an empty state and sets the detected weight to 0 gram as a reference. Further, the plurality of weight detectors are respectively arranged at different heights from the support member 55 corresponding to the type of the paper material 7. The types of the paper material 7 include, for example, the size of the paper material 7 (paper material 7 cut into large pieces and paper material 7 cut into small pieces), and the basis weight of the paper material 7 (weight per unit area). And the presence or absence of coating of the paper material 7.

  According to this, when the paper material 7 is discharged to the receiving tray 54 and received, the loading state of the paper material 7 on the receiving tray 54 differs depending on the type of the paper material 7. The position of the center of gravity changes according to the type of the paper material 7, and accordingly, the degree of rotation (the amount of rotation) of the support frame 59 in the sinking direction F also changes. Therefore, by adopting the weight detected by the weight detector according to the type of the paper material 7 among the weights detected by the plurality of weight detectors as the official value, Even if the types of the papers are different, the paper material 7 having a predetermined weight can be accurately loaded on the receiving tray 54.

1 Waste Paper Recycling Processing Equipment 7 Paper Material 10 Pulper Equipment 11 Weighing Section (Target Location)
12 Paper material supply device 16 Transfer space 17 Transfer duct (transfer passage member)
18 Paper Material Input Portion 19 Discharge Device 20 Blower 21 Air Flow 33 Discharge Portion Main Body 34 Inlet 35 Paper Material Discharge Port 36 Air Flow Relief Port 37 Air Flow Outflow Control Unit 38 Swirling Flow 39 Swirling Flow Generation Chamber 40 Axle 43 Suction Port 44 Discharge Port 47 Return duct (return passage member)
49 Adjustment means 65 Solid-gas separation chamber 69 Delivery device

Claims (7)

A pulper device, a metering unit for metering the amount of paper material to be fed into the pulper device, and a paper material supply device for feeding the paper material to the metering unit,
Paper material supply equipment
A hollow transfer passage member having a transfer space therein;
A paper material input unit provided on the upstream side of the transfer path member, and inputs the paper material into the transfer path member;
A discharge device that is provided downstream of the transfer passage member and discharges the paper material from the transfer passage member to the measuring unit ;
A fan that blows air into the transfer passage member and generates an air current that flows the paper material that has been input into the transfer passage member from the paper material input unit to the discharge device ;
The discharge device includes a discharge unit main body, an introduction port for introducing the paper material in the transfer passage member into the discharge unit main body together with the air flow, and a paper for discharging the paper material introduced into the discharge unit main body from the introduction port to the measurement unit . A material discharge port, an air flow escape port for letting the air flow introduced from the introduction port into the discharge unit main body to the outside of the discharge unit main body, and an air flow outflow suppression means for suppressing the air flow from flowing out from the paper material discharge port to the measuring unit And a used paper recycling apparatus . The blower has a suction port and a discharge port,
The transfer passage member is connected between the paper material input unit and the inlet of the discharge device,
The discharge port of the blower communicates with the transfer passage member via the paper material input unit,
2. The used paper recycling apparatus according to claim 1, wherein the airflow outflow suppression means comprises a hollow return passage member connected between the airflow escape port and the suction port of the blower. 3. The used paper recycling apparatus according to claim 2, further comprising adjusting means for adjusting the amount of airflow flowing from the airflow escape port to the return passage member. A swirl flow generation chamber is formed in the discharge body to convert the air flow introduced from the inlet into a swirl flow.
Waste paper as claimed in any one of claims 3 to stream the spill port to the other end with the paper material outlet at one end of the axis is located through the center portion of the swirling flow, characterized in that position Reproduction processing device . A solid-gas separation chamber for separating the paper material from the airflow by changing the flow direction of the airflow introduced from the introduction port is formed in the discharge unit main body,
The airflow outflow suppression means comprises a delivery device that sends out the paper material in the solid-gas separation chamber from the paper material discharge port to the measuring unit in a state in which the paper material discharge port is closed. 2. A used paper recycling apparatus according to claim 1 . The waste paper recycling process according to any one of claims 1 to 5, wherein the paper material is waste paper that has been shredded or waste paper that has been shredded in a finishing process during papermaking. apparatus. A paper supply device for supplying paper to a target location,
A hollow transfer passage member having a transfer space therein;
A paper material input unit provided on the upstream side of the transfer path member, and inputs the paper material into the transfer path member;
A discharge device that is provided on the downstream side of the transfer path member and discharges the paper material from the transfer path member to a target location;
A blower for generating an air flow that blows air into the transfer passage member and flows the paper material introduced into the transfer passage member from the paper material input portion to the discharge device;
The discharge device includes a discharge unit main body, an introduction port that introduces the paper material in the transfer passage member into the discharge unit main body together with an air flow, and a paper that discharges the paper material introduced from the introduction port into the discharge unit main body to a target location. A material discharge port, an air flow escape port for letting the air flow introduced from the introduction port into the discharge unit main body to the outside of the discharge unit main body, and an air flow outflow suppression means for suppressing the air flow from flowing out from the paper material discharge port to the target location And
A solid-gas separation chamber for separating the paper material from the airflow by changing the flow direction of the airflow introduced from the introduction port is formed in the discharge unit main body,
The airflow outflow suppression means includes a delivery device that sends out the paper material in the solid-gas separation chamber from the paper material discharge port to a target location in a state where the paper material discharge port is closed.

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