JP6457562B2 - Chip material transfer device - Google Patents

Description

  The present invention relates to a chip material transfer device, and more particularly, to a chip material transfer device that mixes a plurality of types of materials supplied to a material input unit at an appropriate ratio and transfers them to the next work site.

  Conventionally, as an example of a conveying device for chip material or the like that receives wood chips for fuel and other materials and conveys them to the next work department (for example, an incinerator), there is one disclosed in Patent Document 1, for example. FIG. 12 is a diagram illustrating the structure of the transport apparatus disclosed in Patent Document 1. In FIG. 12, the transport device includes a hopper 3 and a belt conveyor 6, and the front side surface portion (right side surface portion in FIG. 10) moves in the front-rear direction around a fulcrum shaft 7 positioned at the front upper end of the hopper 3. A cutout conveyor 8 that can swing is attached. The belt conveyor 6 is constituted by an endless belt that is supported by a plurality of support roller 9 groups and is wound around the lower front and rear end rollers 10a and 10b. A motor 13 is connected to the rotating roller 10b by a chain 15 and can run a conveyor belt wound around the outer periphery of the roller 10b. The cutout conveyor 8 includes a bracket 16 that swings in the front-rear direction around the fulcrum shaft 7, an endless chain conveyor belt 18, and the like. The chain conveyor belt 18 is connected to a drive motor (not shown) different from the motor 13, and is rotated by this drive motor. Further, a track device 11 is installed above the hopper 3, and a container (conveying box) 12 is suspended from the track device 11 so as to be movable along the hopper 3. The container 12 has a container structure, and the stored material can be put into the hopper 3 by being inverted upside down.

  In such a transport device, the container 12 moves along the track device 11 in a state in which the material is accommodated, and is reversed on the hopper 3 to put the material into the hopper 3. The material put into the hopper 3 is conveyed in the exit direction (rightward in FIG. 10) by the belt conveyor 6 installed in the lower part of the hopper 3, and conveyed to the next work site by the cutout conveyor 8, or It is sent out at the end of the belt conveyor 6.

JP-A-7-149433

  As described above, the conveying device is used to carry in and out various materials such as granular materials and chip materials, but conventionally, a plurality of types of materials are put into a hopper which is a material feeding unit, Further, when it is desired to mix the materials and transport them to the next work site, there is a problem that a plurality of types of materials cannot be mixed at an appropriate ratio and transported to the next work site.

  The present invention has been made in view of the circumstances as described above. The purpose of the present invention is to appropriately use a plurality of types of materials in a transport device when a plurality of types of materials are put into a hopper and transported to the next work site. It is an object of the present invention to provide a chip material transfer device which can be mixed at a proper ratio or can be appropriately changed to be transferred to the next work site.

In order to achieve the above-mentioned object, the present invention provides a hopper comprising a rectangular upper opening extending in the longitudinal direction of the chip material conveying device, and a rectangular bottom opening whose width dimension is set narrower than the upper opening, consist of a conveyor device disposed below the bottom opening of the hopper, on the inner side of the hopper is attached weir member, which partitions the interior of the hopper and traveling direction front region of the conveyor, the back region In addition, a flow rate adjustment lid that covers the conveyor device is installed between the upper surface of the conveyor device and the bottom of the hopper in the rear area of the dam member . Thereby, when a plurality of types of materials are put into a hopper and conveyed by a conveyor device, the plurality of types of materials can be appropriately mixed, and the mixing ratio of the plurality of types of materials can be adjusted. It becomes possible.

  Further, different materials are supplied to the front area and the rear area in the hopper, and a plurality of kinds of materials in the hopper can be mixed at a predetermined ratio during the conveying operation of the conveyor device.

  Furthermore, a gap of a predetermined dimension is opened between the upper surface of the conveyor device and the bottom opening of the hopper, and a flow rate adjustment lid that covers the conveyor device can be installed in this gap. This makes it possible to adjust the mixing ratio of the plurality of types of materials.

  Further, a gap of a predetermined size is opened between the upper surface of the conveyor device and the bottom opening of the hopper, and the lower part of the dam member is attached to the dam member and is lower than the lower edge of the dam member. A height adjusting plate extending into the lower gap may be provided. Thereby, it becomes possible to adjust the mixing ratio of the plurality of types of materials by using a member different from the flow rate adjusting lid or by using it together.

  In the present invention, since the weir member is provided in the hopper of the transport device, when a plurality of types of materials are input and transported to the next work site, the plurality of types of materials are mixed in an appropriate ratio, or the mixing ratio is set. It can be changed as appropriate, and work at the work place behind it can be performed efficiently.

1 is an overall system diagram showing an overall configuration of an incinerator system in which a conveying apparatus according to an embodiment of the present invention is incorporated. It is a top view which shows the structure of the conveying apparatus shown as the said embodiment. It is a partial cross section side view in the AA line in FIG. 2 which shows the structure of the conveying apparatus which concerns on the said embodiment. It is the fragmentary sectional front view which looked at the conveyance apparatus toward the back from the front in the BB line in FIG. 2 which shows the structure of the conveyance apparatus shown as the said embodiment. FIG. 5 is a partial cross-sectional front view of the transport device as viewed from the front to the rear along line CC in FIG. 2 at a rear position from FIG. 4, showing the configuration of the transport device according to the embodiment of the present invention. In the said embodiment, it is a figure which models and shows the partial front view similar to FIG. 4, and is a partial front view explaining the attachment aspect of a flow volume adjustment lid and a height adjustment board especially. In the said embodiment, it is a partial top view which cuts out and shows the part of a bottom part opening part of a hopper, and a chain conveyor explaining the attachment state of the flow volume adjustment lid | cover. It is a partial side view which cuts out and shows the bottom part of a hopper and the part of a chain conveyor explaining the attachment state of the flow volume adjustment lid in the said embodiment. It is a top view which models and demonstrates the injection | throwing-in operation | movement of the material to a hopper in the said embodiment. It is a perspective part showing the injection | pouring and storage state of the cutting tip (or mixture of a bark and a chip | tip) and PKS to the hopper of the conveying apparatus by the said embodiment. In the hopper of the conveyance apparatus of the said embodiment, it is a perspective part showing the state after the cutting chip (or mixture of bark and a chip | tip) and PKS which were stored were conveyed by the conveyance operation of a chain conveyor. It is a front view which shows schematic structure of the conveying apparatus which concerns on a prior art.

  Next, the embodiment and operation of the present invention will be described with reference to FIGS. FIG. 1 is an overall system diagram showing the overall configuration of an incinerator system in which a transfer apparatus according to an embodiment of the present invention is incorporated. In FIG. 1, the code | symbol 21 is an incinerator (boiler) which makes the center installation of an incinerator system. In the incinerator 21, cutting chips or bark chips cut from wood, and a mixture of them and PKS are charged as materials and incinerated. A bark is a bark or a twig obtained from a wood processing process such as lumber. PKS is palm coconut shell, which is a waste product of agricultural crops generated in the process of producing palm oil from palm coconut, and has a low water content and a high calorific value. Reference numeral 22 denotes a cutting / crushing facility for processing the remaining forest land and bark received from the region into chips. Reference numeral 23 denotes a fuel warehouse, which includes a rotary kiln (dryer) for drying materials. Reference numeral 24 denotes a storage tank in which cutting chips, bark chips, and PKS are mixed and stored. A turbine building 25 is installed at a position adjacent to the incinerator 21 and generates power by a steam turbine. The turbine building 25 is provided with a turbine generator 26 and a condenser 27 inside. The turbine generator 26 is rotated by the power of steam generated in the incinerator 21 to generate electricity. The condenser 27 returns the steam used for turbine power generation to water and circulates it. In addition, a central controller 28 that controls transmission of generated electricity is installed inside the building. The central control device 28 performs combustion management, temperature management, and steam pressure management in the incinerator 21, and operation control of the turbine generator 26 and the condenser 27. In addition, a burning husk recycling facility 29 for treating the burning husk from the incinerator 21 is installed.

  In such a system configuration, the conveying device of the present invention is provided in the cutting / crushing facility 22. 2 to 5 are views showing the structure of the transfer device 31 shown as an embodiment of the present invention. Among these drawings, FIG. 2 is a plan view of the transfer device 31, and FIG. 3 is a partial cross-sectional side view taken along the line AA in FIG. 4 is a partial cross-sectional front view of the transport device 31 viewed from the front to the rear along the line BB in FIG. 2, and FIG. 5 is a transport device along the line CC in FIG. It is the partial cross section front view which looked at 31 from the front toward back. The transport device 31 includes a hopper 32 and a conveyor device 33. In FIG. 2, the left side of the figure is the front (indicated by arrow S), and the material charged into the hopper 32 is conveyed from the right to the left in FIG. Although various types of conveyor devices 33 can be used, a chain conveyor is used in the present embodiment. Therefore, in the following description, the conveyor device will be described as a chain conveyor 33.

The hopper 32 has a rectangular upper opening 34 at the zenith portion, and has a rectangular shape at the bottom, but has a width dimension smaller than that of the upper opening 34, and substantially the same length as the upper opening 34 in the front-rear direction. It has a bottom opening 35 having dimensions. The front end surface 36 and the rear end surface 37 of the hopper 32 extend vertically in the vertical direction, while the right side surface 38 and the left side surface 39 installed on both sides are seen from the upper end as shown in FIGS. It is formed in an inclined structure that becomes narrower toward the lower end. Accordingly, the hopper 32 has a structure in which a truncated triangular prism that gradually decreases in width from the upper end to the lower end and reaches the bottom opening 35 is tilted in the front-rear direction when viewed from the front view. A dam member 40 is attached to the inside of the hopper 32. In the present embodiment, the weir member 40 is provided at the rear portion of the hopper 32 center portion in the front-rear direction and at a position approximately 3/4 as seen from the front, and the front section 41 and the rear side in the front-back direction inside the hopper 32 A plurality of types of materials are put into the hopper 32. Moreover, the front-back direction of the rear area 42 of the hopper 32 is set to a dimension of about 2 meters, for example.
The chain conveyor 33 is installed on the lower side of the hopper 32, more specifically, on the lower side of the bottom opening 35 of the hopper 32. A gap 46 having a predetermined size (for example, about 5 to 10 centimeters) is formed between the upper surface of the chain conveyor 33 and the bottom opening 35 of the hopper 32. Then, by operating the chain conveyor 33, the material charged into the hopper 32 is moved to the front end face 36 side (the direction of the arrow S).

Further, in the transport device 31, a flow rate adjusting lid 43 is installed between the hopper 32 and the chain conveyor 33. Further, as shown in FIG. 6, a height adjustment is attached to the dam member 40 and extends into the gap 46 below the lower edge of the dam member 40 at the lower part of the dam member 40 in the hopper 32. A plate 44 is provided.
FIG. 6 is a diagram showing a model of a partial front view similar to FIG. 4, and in particular, is a partial front view for explaining how to attach the flow rate adjusting lid 43 and the height adjusting plate 44. FIG. 7 is a partial plan view showing a bottom opening 35 portion of the hopper 33 and a portion of the chain conveyor 33 for explaining the attachment state of the flow rate adjusting lid 43. FIG. 8 is a partial side view showing the bottom of the hopper 33 and the chain conveyor 33, which also explains the attachment state of the flow rate adjusting lid 43. The height adjusting plate 44 is attached to the weir member 40 by fastening members 47 such as bolts and nuts. To adjust the height of the weir member 40, the bolt through hole formed in the weir member 40 is locked by a long hole extending in the vertical direction, or a plurality of height adjustment plates 44 having different vertical dimensions are prepared. It can be performed by appropriately replacing. A suspension hook 45 for hanging the hopper may be attached to the upper edge of the front side surface 36 and the upper edge of the rear side surface 37 of the hopper 32.

  In the transport device 31 having such a configuration, the material input and the material transport operation will be described. FIG. 9 is a plan view for explaining the modeling of the material feeding operation to the hopper 32. As shown in FIG. 9, PKS conveyed from the fuel warehouse is supplied to the rear section 42 of the hopper 32 by a loader (not shown). On the other hand, cutting chips (wood pieces) generated in the cutting / crushing facility 22 are put into the front area 41 of the hopper 32. Further, a bark and a cutting tip may be supplied to the front area 41 of the hopper 32 by a loader instead of the cutting tip. In the operation of the conveying device 31 according to the present embodiment, the cutting tip and the PKS are supplied to the hopper 32 and conveyed by the chain conveyor 33 during the daytime (daytime) of the day. Also, at night during the day, a mixture of bark and chips and PKS are supplied to the hopper 32 and conveyed by the chain conveyor 33. The conveyance speed of the chain conveyor 33 is determined by the test conveyance during the day because the optimum mixing ratio of cutting chips (or a mixture of bark and chips) and PKS varies depending on the weather and temperature of the day. . Further, in order to adjust the transport amount of PKS, the flow rate adjusting lid 43 is installed on the chain conveyor 33, or the mounting state of the height adjusting plate 44, that is, the amount of protrusion to the gap 46 is adjusted. .

  FIG. 10 is a perspective view showing a state in which cutting chips (or a mixture of bark and chips) and PKS are put into and stored in the hopper 32 of the conveying device 31 according to the present embodiment. FIG. 11 is a perspective view showing a state after the stored cutting chips (or a mixture of bark and chips) and PKS are conveyed by the conveying operation of the chain conveyor 33 in the same hopper as in FIG. In FIG. 10, the front side is the front side area 41 and the back side is the rear side area 42. In FIG. 11, the front side is the rear side area 42, and the back side is the front side area 41. By the operation as described above, the optimum fuel conveyance in the conveyance device 31 is performed.

  According to the chip material conveying device of the present invention, the weir member is provided in the hopper of the conveying device. Mixing or mixing ratio can be changed as appropriate, and the work at the work place behind it can be performed efficiently and useful.

21 Incinerator (Boiler)
22 Cutting and crushing equipment 23 Fuel warehouse 24 Storage tank 25 Turbine building 26 Turbine generator 27 Condenser 28 Central controller 29 Burning husk recycling equipment 31 Conveying device 32 Hopper 33 Conveyor device (chain conveyor)
40 Weir member 41 Front section 42 Rear section 43 Flow rate adjustment lid 44 Height adjustment plate

Claims (3)

A hopper comprising a rectangular top opening extending in the longitudinal direction and a rectangular bottom opening whose width dimension is set narrower than the top opening;
A conveyor device installed below the bottom opening of the hopper ,
A dam member is attached to the inside of the hopper, and the inside of the hopper is divided into a front area and a rear area in the direction of travel of the conveyor ,
Between the upper surface of the conveyor device in the rear section from the weir member and the bottom of the hopper, a flow rate adjustment lid that covers the conveyor device is installed,
An apparatus for conveying a chip material. Different materials are supplied to the front area and the rear area in the hopper, and a plurality of types of materials in the hopper are mixed at a predetermined ratio by the flow rate adjusting lid when the conveyor device is transported. The chip material conveying apparatus according to claim 1. A gap of a predetermined size is formed between the upper surface of the conveyor device and the bottom opening of the hopper, and the lower part of the dam member is attached to the dam member and is lower than the lower edge of the dam member. 2. The chip material conveying device according to claim 1, further comprising a height adjusting plate extending into the gap .

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