Garbage treating equipment

Abstract

To enable garbage treating equipment to be installed at low cost, and furthermore to reduce the operating cost thereof.SOLUTION: Garbage treating equipment comprises: a conveyor which conveys unshredded garbage; a transfer machine which transfers garbage discharged from the conveyor; a shredder which shreds garbage transferred by the transfer machine; a concrete-made dewatering pit to which garbage shredded by the shredder is charged; a concrete-made block which is placed on garbage in order to discharge water content from garbage housed in the dewatering pit; and a hoist crane which moves the block in at least a vertical direction. The conveyor conveys garbage from the vicinity of a floor surface to above a side wall of the dewatering pit, the transfer machine transfers garbage above the side wall of the dewatering pit, and the shredder shreds garbage above the side wall of the dewatering pit and charges the shredded garbage to the dewatering pit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a food waste disposal device. [Background technology]

[0002] Generally, food waste is collected from each household and incinerated in a waste incinerator at a waste treatment plant in each city or town. Food waste is put into a combustion chamber in a waste incinerator to be treated. However, since food waste contains a lot of moisture, it has been proposed to remove moisture from the food waste before putting it into the combustion chamber. Food waste is collected from each household and transported to a waste treatment plant while still containing moisture, so it is bulky and heavy, and transporting it increases the transportation cost. In addition, incinerating a large amount of food waste not only generates toxic gases such as dioxins, but also causes a large amount of greenhouse gases such as carbon dioxide (CO2) to be released into the atmosphere. Therefore, it is desirable to remove moisture from the food waste to be incinerated and reduce its weight in order to suppress global warming. Therefore, a food waste treatment device has been proposed that includes a crushing, dehydrating and transporting device that crushes and dehydrates the food waste, a drying container that contains the crushed and dehydrated food waste, a combustion furnace, a heat exchanger, and the like (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 05-329468 Summary of the Invention [Problem to be solved by the invention]

[0004] The food waste processing device in Patent Document 1 uses heat from a combustion furnace to remove moisture from shredded food waste, but the need for a combustion furnace and heat exchanger makes the device configuration complicated, which increases the installation costs of the device. In addition, multiple units of this type of food waste processing device must be installed depending on the amount of food waste to be processed, so it is necessary to be able to install the device at low cost and to reduce operating costs. The food waste processing device in Patent Document 1 has issues such as the difficulty of installing it at low cost because it requires dedicated components (drying containers, etc.), and the difficulty of reducing operating costs because it requires fuel for the combustion furnace.

[0005] An object of the present invention is to provide a food waste disposal device that can be installed at low cost and that can reduce operating costs. [Means for solving the problem]

[0006] In one aspect of the present invention, a food waste processing device is provided that includes a conveyor that transports food waste before it is shredded, a transfer machine that transfers the food waste discharged from the conveyor, a shredder that shreds the food waste sent by the transfer machine, a concrete dehydration pit into which the food waste shredded by the shredder is fed, a concrete block that is placed on the food waste contained in the dehydration pit to drain moisture from the food waste, and a hoist crane that moves the block at least in a vertical direction, wherein the conveyor transports the food waste from near the floor surface to above the side wall of the dehydration pit, the transfer machine transports the food waste above the side wall of the dehydration pit, and the shredder shreds the food waste above the side wall of the dehydration pit and feeds it into the dehydration pit. Effect of the Invention

[0007] According to the food waste treatment device of the above aspect, the food waste is shredded by the shredder above the side wall of the dehydration pit, so that the shredded food waste can be easily thrown into the dehydration pit. Furthermore, because the dehydration pit is made of concrete, the blocks for removing moisture from the food waste in the dehydration pit are made of concrete, and a hoist crane is used to move the blocks, the food waste treatment device can be constructed inexpensively by combining existing products. Furthermore, because the blocks are placed on the food waste in the dehydration pit using a hoist crane, and the food waste is dehydrated by the weight of the blocks, the food waste can be dehydrated easily and the operating costs of the device can be reduced. [Brief description of the drawings]

[0008] [Figure 1] 1 is a cross-sectional view showing an example of a food waste disposal device according to a first embodiment. [Diagram 2] FIG. 1 is a plan view showing an example of a food waste disposal device according to a first embodiment. [Diagram 3] FIG. 13 is a diagram showing the dehydration process of food waste using blocks. [Figure 4] FIG. 11 is a plan view showing an example of a food waste disposal device according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described with reference to the drawings, but the present invention is not limited to the contents described below. In the drawings, in order to make each configuration easier to understand, some parts are emphasized or some parts are simplified or omitted, and the actual structure, shape, scale, etc. may differ. In addition, in the drawings, the directions in the drawings may be described using the XYZ coordinate system. The horizontal plane is the XY plane. One direction in the horizontal plane is written as the X direction. In the horizontal plane, the direction perpendicular to the X direction is written as the Y direction. The direction perpendicular to the X direction and the Y direction is written as the Z direction. In addition, in each of the X direction, the Y direction, and the Z direction, the direction indicated by the arrow in the drawing is the + direction, and the direction opposite to the direction indicated by the arrow is the - direction.

[0010] [First embodiment] A food waste processing device 100 according to the first embodiment will be described. Fig. 1 is a cross-sectional view showing an example of the food waste processing device 100 according to the first embodiment, and Fig. 2 is a plan view showing an example of the food waste processing device 100 according to the first embodiment. The food waste processing device 100 includes a screw conveyor (conveyor) 10, a hopper 20, piping 30, a transfer machine 40, a shredder 50, a transfer machine 60, a dewatering pit 70, a hoist crane 80, and a block 90.

[0011] The screw conveyor 10 conveys the unshredded food waste G conveyed by the truck T from near the floor surface F to the hopper 20. In this embodiment, the screw conveyor 10 is used, but the present invention is not limited to this form, and for example, a belt conveyor, a chain conveyor, a bucket conveyor, a net conveyor, etc. may be used. The screw conveyor 10 is installed at an incline so that one end of the lower side is placed on the floor surface F and the other end of the upper side is located above the hopper 20. The screw conveyor 10 includes a tube portion 11, a rotating shaft 12, a spiral portion 13, and a motor M1. The tube portion 11 is formed into a cylindrical shape from metal, resin, etc. An inlet 111 for inputting the food waste G is provided at the lower side of the tube portion 11. The inlet 111 is provided so as to open upward (in the +Z direction). An outlet 112 for discharging the food waste G to the hopper 20 is provided at the upper side of the tube portion 11. The exhaust port 112 is provided so as to open downward (in the -Z direction).

[0012] The rotating shaft 12 is disposed within the cylindrical portion 11, and its axial direction coincides with the longitudinal direction of the cylindrical portion 11. One end of the rotating shaft 12 is supported by a bearing 14, and the other end is connected to a motor M1. The spiral portion 13 is provided on the rotating shaft 12, and rotates together with the rotating shaft 12. When the motor M1 is driven, the rotating shaft 12 rotates, causing the spiral portion 13 to rotate. As a result, the spiral portion 13 transports the food waste G input from the input port 111 toward the discharge port 112, and inputs the food waste G from the discharge port 112 into the hopper 20. The size of the screw conveyor 10 is set appropriately depending on the amount of food waste G to be transported.

[0013] The hopper 20 sends the food waste G discharged from the discharge port 112 of the screw conveyor 10 into the piping 30. The hopper 20 is installed on the upper surface 721 of the side wall 72 on the -X side of the dewatering pit 70. The hopper 20 includes an opening 21 and a slide plate 22. The hopper 20 has a box shape with the opening 21 opening in a square shape on the upper side, and communicates with the piping 30 on the +X side. The slide plate 22 is provided at an incline below the opening 21. The food waste G dropping from the opening 21 is sent to the entrance 31 of the piping 30 by the slide plate 22.

[0014] The piping 30 includes an inlet 31 and a plurality of spray nozzles 32. The piping 30 is used as a passage for shredding the food waste G sent from the hopper 20 and throwing the shredded food waste G into the dehydration pit 70. The piping 30 has, for example, a cylindrical shape, and is provided extending in the X direction so as to cross above the dehydration pit 70. The piping 30 is not limited to a cylindrical shape, and may be, for example, a groove shape that opens upward. The inlet 31, which is one end of the piping 30, opens on the side surface on the +X side of the hopper 20, and the other end is closed. The other end of the piping 30 is placed on the upper surface 721 of the side wall 72 on the +X side of the dehydration pit 70.

[0015] The spray nozzle 32 discharges the shredded food waste Ga into the storage section 73 of the dewatering pit 70. The spray nozzle 32 is provided protruding from the piping 30 in the +Y direction and the -Y direction with respect to the piping 30. The diameter, etc. of the spray nozzle 32 is set appropriately according to the size of the shredded food waste Ga. Furthermore, the installation position and number of the spray nozzles 32 are arbitrary, and they may be provided only on the +Y side or -Y side of the piping 30.

[0016] The piping 30 is provided with a transfer machine 40, a shredder 50, a transfer machine 60, and a spray nozzle 32. The transfer machine 40 is provided near the inlet 31 of the piping 30 on the upstream side of the shredder 50. The transfer machine 40 transfers the food waste G sent from the hopper 20 to the piping 30 to the shredder 50. The transfer machine 40 has blades that rotate by a driving source (not shown). Examples of the driving source include an electric motor. The transfer machine 40 transfers the food waste G to the shredder 50 by rotating a plurality of blades. The form of the transfer machine 40 is arbitrary, and any configuration capable of sending the food waste G can be applied. In addition, it is optional whether or not to provide the transfer machine 40, and the transfer machine 40 does not have to be provided.

[0017] The shredder 50 is provided midway through the piping 30 and is disposed above the dewatering pit 70. The shredder 50 includes a plurality of shredding blades 51, a support plate 52, a rotating shaft 53, and a motor M2. The shredding blades 51 are blade-shaped and shred the food waste G. The shredding blades 51 are made of, for example, stainless steel, which is resistant to rust. A plurality of the shredding blades 51 are provided so as to extend as far as possible from the support plate 52. The number of the shredding blades 51 is not particularly limited. The support plate 52 is disc-shaped and has the shredding blades 51 fixed to its lower surface. The support plate 52 is fixed to the lower end of the rotating shaft 53.

[0018] The rotating shaft 53 is rotated around a vertical axis by the motor M2. The rotation of the rotating shaft 53 rotates the support plate 52, causing the multiple shredding blades 51 to revolve around the vertical axis. As the multiple shredding blades 51 revolve, the food waste G sent from the transfer machine 40 is shredded into fine food waste Ga. At this time, approximately 50% of the moisture in the food waste G is removed. At this time, the moisture generated by the shredder 50 falls into the dehydration pit 70. Therefore, a drainage path is not required in the shredder 50, and the device configuration can be simplified.

[0019] The transfer machine 60 is provided downstream of the shredder 50. The transfer machine 60 sends the food waste G shredded by the shredder 50 to the downstream side of the piping 30. The transfer machine 60 has blades that rotate by a driving source (not shown). Examples of the driving source include an electric motor. The transfer machine 60 sends the food waste Ga to the downstream side of the piping 30 by rotating a plurality of blades. The form of the transfer machine 60 is arbitrary, and any configuration that can send the food waste Ga can be applied. In addition, it is optional whether or not to provide the transfer machine 60, and the transfer machine 60 does not have to be provided. The transfer machine 60 may have a similar configuration to the conveying machine 40. The food waste Ga sent by the transfer machine 60 is thrown into the dehydration pit 70 from the spray nozzle 32.

[0020] The dewatering pit 70 includes a bottom 71, side walls 72, a storage section 73, a door 74, a drain groove 75, and a drain outlet 76. The dewatering pit 70 stores food waste Ga discharged from the spray nozzle 32. The bottom 71 is formed by pouring concrete. The side walls 72 may be formed, for example, by pouring concrete into a formwork, or may be formed by stacking concrete blocks. By making the bottom 71 and the side walls 72 out of concrete, the dewatering pit 70 can be formed inexpensively, thereby reducing costs.

[0021] The size of the dewatering pit 70 is set appropriately depending on the installation location, the amount of food waste Ga collected, and the like. The door 74 is provided on a part of the side wall 72 on the -X side. The side wall 72 on which the door 74 is provided is arbitrary, and the door 74 may be provided on the +X side wall 72, the +Y side wall 72, or the -Y side wall 72. A plurality of doors 74 may be provided. The door 74 may have a single-wing door, a double-wing door, a shutter structure, or the like. The size of the door 74 is set, for example, according to the size of a backhoe that carries away the food waste Ga stored in the storage section 73.

[0022] The drain groove 75 is formed in a concave shape in the bottom 71. The drain groove 75 guides water coming out of the food waste Ga stored in the storage section 73 to the drain outlet 76. The drain outlet 76 is provided by penetrating the lower part of the side wall 72 on the +X side. The drain outlet 76 discharges the water guided by the drain groove 75 to the outside of the dehydration pit 70. The drain groove 75 may be provided with an incline toward the drain outlet 76 so that the water from the food waste Ga can easily flow away. Furthermore, instead of a single drain groove 75, multiple drain grooves 75 may be provided in the bottom 71.

[0023] The hoist crane 80 includes a hoisting device 81, a support 82, wheels 83, a traveling rail 84, and a wire 85. The hoisting device 81 includes, for example, a cylindrical section 811 that is rotated by an electric motor (not shown). The cylindrical section 811 may be configured to be rotated manually by an operator. A wire 85 is wound around the cylindrical section 811, and the wire 85 is unwound or wound by the rotation of the cylindrical section 811. The support 82 supports the hoisting device 81. The wheels 83 are provided on both sides of the support 82 and are rotatable about axles 831. The wheels 83 roll on a traveling surface 841 of the traveling rail 84.

[0024] The traveling rail 84 is provided above the dewatering pit 70 along the Y direction. The traveling rail 84 may be provided to be movable in the X direction. The hoisting device 81 is movable in the Y direction by the wheels 83 rolling on a traveling surface 841 of the traveling rail 84. The hoisting device 81 can be moved in the X direction by moving the traveling rail 84 in the X direction. The movement of the hoisting device 81 may be performed manually by an operator, or may be performed by rotating the wheels 83 using a driving source such as an electric motor. The movement of the traveling rail 84 in the X direction may be performed manually by an operator, or may be performed using a driving source such as an electric motor.

[0025] The hoist crane 80 can move the hoisting device 81 in the Y direction or the X direction, and can dispose this hoisting device 81 at any position (position in the Y direction or the X direction) above the dewatering pit 70. The hoist crane 80 may be configured to include multiple hoisting devices 81 on one traveling rail 84. Also, the hoist crane 80 may be configured to have multiple hoisting devices 81 installed in one dewatering pit 70.

[0026] The wire 85 is wound around a cylindrical portion 811 of the hoisting device 81, and a concrete block 90 is suspended from the lower end of the wire 85. The wire 85 is wound or unwound by the rotation of the cylindrical portion 811. That is, the hoisting device 81 can raise and lower the block 90 suspended from the wire 85 by rotating the cylindrical portion 811. The wire 85 has an appropriate thickness and length set according to the size, weight, and the like of the block 90 to be suspended. A belt or the like may be used instead of the wire 85. The block 90 does not need to be a concrete block of a dedicated size, and for example, a commercially available inexpensive concrete block or the like may be used. The number of blocks 90 suspended by the wire 85 is arbitrary, and the wire 85 may be configured to suspend two or more blocks 90.

[0027] 3 is a diagram showing the dehydration process of food waste Ga by the block 90. ​​Food waste Ga fed into the storage section 73 from each spray nozzle 32 is piled up on the bottom 71 of the storage section 73. Although the food waste Ga has been shredded, moisture still remains in the food waste Ga. Therefore, it is preferable to further dehydrate the food waste in the dehydration pit 70 in order to reduce the weight of the food waste when incinerated. In the dehydration process in this embodiment, a block 90 is placed on the shredded and piled up food waste Ga, and the weight of the block 90 is used to remove moisture from the food waste Ga.

[0028] As shown in Fig. 3, first, a hoist crane 80 (see Fig. 1, etc.) moves a block 90 from a standby position (dotted line in Fig. 3) to above the piled food waste Ga. Next, the cylindrical portion 811 of the hoisting device 81 is rotated to pay out a wire 85, and the block 90 is placed on the piled food waste Ga. The piled food waste Ga is crushed by the weight of the block 90, and the moisture is squeezed out, resulting in a lower volume and reduced weight. The moisture released from the food waste Ga flows through a drain 75 and is discharged from a drain outlet 76 to the outside of the dewatering pit 70.

[0029] This dehydration process removes about 10% of the moisture in the food waste Ga. In the dehydration process, the block 90 may be placed on the food waste Ga for a fixed period of time, or may be placed on the food waste Ga and raised up repeatedly. Although FIG. 3 shows the dehydration process of food waste Ga piled up in one place, food waste Ga may be piled up in multiple places in the dehydration pit 70, and each food waste Ga may be dehydrated.

[0030] Next, the operation of the food waste processing device 100 will be described. The truck T collects food waste G from various facilities where food waste G is generated, and transports it to the food waste processing device 100. The food waste G transported by the truck T is fed into the inlet 111 of the screw conveyor 10. The screw conveyor 10 transports the food waste G from near the floor surface F to above the side wall 72 of the dehydration pit 70, and feeds it into the hopper 20 from the outlet 112. The food waste G is sent from the hopper 20 through the piping 30 by the transfer device 40 to the shredder 50. The food waste Ga shredded by the shredder 50 is sent through the piping 30 by the transfer device 60, and discharged from the spray nozzle 32 into the storage section 73 of the dehydration pit 70.

[0031] When the food waste Ga has accumulated in the storage section 73 and reached a predetermined volume, a dehydration process is performed on the accumulated food waste Ga. As described above, the travel rail 84 and hoisting device 81 of the hoist crane 80 are moved, and the block 90 is moved from the standby position and positioned above the food waste Ga. Next, the cylindrical portion 811 of the hoisting device 81 is rotated to pay out the wire 85, and the block 90 is lowered and placed on the food waste Ga. Moisture is removed from the food waste Ga by the weight of the block 90, and both the volume and weight are reduced. The moisture released from the food waste Ga flows through the drain ditch 75 and is discharged from the drain outlet 76 to the outside of the dehydration pit 70.

[0032] After the block 90 is raised, the dehydrated food waste Ga may be left in the dehydration pit 70 and dried. After the food waste Ga has been dehydrated, the door 74 is opened and the food waste Ga is removed from the dehydration pit 70 by a shovel or by hand by a worker. The food waste Ga removed from the dehydration pit 70 is transported to a treatment facility where it can be used for compost, for example, and thus produced.

[0033] In this way, in the first embodiment, the food waste G is shredded by the shredder 50 above the side wall 72 of the dewatering pit 70, so that the shredded food waste Ga can be easily thrown into the dewatering pit 70. In addition, the dewatering pit 70 and the block 90 are made of concrete, and furthermore, the existing hoist crane 80 is used to move the block 90, and since the hoist crane 80 is used to move the block 90, the food waste processing device 100 can be installed at low cost. In addition, since the weight of the block 90 is used to dehydrate the food waste Ga, the dehydration process of the food waste Ga can be easily performed, and the operating costs of the device can be reduced.

[0034] [Second embodiment] A food waste processing device 200 according to the second embodiment will be described. FIG. 4 is a plan view showing an example of a food waste processing device 200 according to the second embodiment. The same components as those in the first embodiment are given the same reference numerals and will not be described. The second embodiment is a form in which a plurality of dehydration pits 70 of the first embodiment are installed, and is effective, for example, when a large amount of food waste G is to be processed. The food waste processing device 200 includes a first processing device A having a dehydration pit 70A, a second processing device B having a dehydration pit 70B, and two hoist cranes 80 with running rails 84 arranged in the Y direction above the first processing device A and the second processing device B.

[0035] The dewatering pits 70A and 70B each include bottoms 71A and 71B, side walls 72A and 72B, and storage sections 73A and 73B, similar to the bottom 71, side walls 72, and storage section 73 described above. The two hoist cranes 80 each have two traveling rails 84 that are spaced apart in the X direction and extend parallel to each other in the Y direction. With this configuration, the two hoist cranes 80 can move the block 90 without distinguishing between the first processing section A and the second processing section B.

[0036] In addition to the dehydration pit 70A, the first processing section A is equipped with one screw conveyor 10, one hopper 20, a main pipe 30A, a transfer machine 40, a shredder 50, and a transfer machine 60. The main pipe 30A is equipped with three branched pipes 301A, 302A, and 303A. The main pipe 30A is provided on the upper part of the side wall 72A along the -X side of the side wall 72A. In the first processing section A, a transfer machine 40 is provided on the main pipe 30A. The transfer machine 40 sends food waste G to the pipes 301A and 302A. For example, food waste G that could not be sent by the transfer machine 40 from the hopper 20 to the pipes 301A and 302A is sent to the pipe 303A.

[0037] Each of the pipes 301A, 302A, and 303A is provided with a shredder 50. Furthermore, each of the pipes 301A, 302A, and 303A is provided with a transfer machine 60 downstream of the shredder 50. Each of the pipes 301A, 302A, and 303A is provided with a spray nozzle 32. In the first processing section A, food waste G thrown into a hopper 20 by one screw conveyor 10 is sent by a transfer machine 40 to the pipes 301A, 302A, and 303A via the main pipe 30A, where it is shredded by each shredder 50 and thrown into the dewatering pit 70A through the spray nozzle 32.

[0038] Moisture is removed from the food waste Ga piled up in the dewatering pit 70A by placing a block 90 on it using one or both of two hoist cranes 80. As in the first embodiment described above, the moisture from the food waste Ga flows through a drainage groove 75 (see FIG. 1) and is discharged from a drainage outlet 76 (see FIG. 1) to the outside of the dewatering pit 70A. Note that, after dewatering, the food waste Ga is removed by opening a door 74 (see FIG. 1) provided on a side wall 72A, as in the first embodiment described above.

[0039] In addition to the dewatering pit 70B, the second processing section B is equipped with three screw conveyors 10, three hoppers 20, three pipes 30, a transporter 40, a shredder 50, and a transferer 60. The second processing section B is capable of discharging food waste G from a plurality of trucks T to the processing facility, improving the efficiency of transporting food waste G from the trucks T. In addition, since the operation of one or two screw conveyors 10 and the downstream transporter 40, shredder 50, and transferer 60 can be stopped depending on the amount of food waste G, the operating costs can be reduced.

[0040] In the second processing section B, food waste G transported by the screw conveyor 10 is sent from the hopper 20 to the pipe 30 by the transfer machine 40, shredded by the shredder 50, and thrown into the dewatering pit 70B through the spray nozzle 32. Moisture is removed from the food waste Ga piled up in the dewatering pit 70B by placing a block 90 on it using one or both of two hoist cranes 80, and the food waste is removed by opening a door 74 (see FIG. 1) provided on the side wall 72B.

[0041] Thus, in the second embodiment, in addition to the effects of the first embodiment described above, the first processing unit A and the second processing unit B are provided, so that a large amount of food waste G can be processed. Furthermore, when the amount of food waste G to be processed is small, the operation of the first processing unit A or the second processing unit B can be stopped to reduce operating costs.

[0042] Although the embodiments have been described above, the technical scope of the present invention is not limited to the above-mentioned embodiments. It is clear to those skilled in the art that the above-mentioned embodiments can be modified or improved. Furthermore, forms with such modifications or improvements are also included in the technical scope of the present invention. One or more of the requirements described in the above-mentioned embodiments may be omitted. Furthermore, the requirements described in the above-mentioned embodiments may be combined as appropriate. Furthermore, the execution order of each operation shown in the embodiments can be realized in any order as long as the result of a previous operation is not used in a subsequent operation.

[0043] In the second embodiment described above, an example is given of a configuration in which one first processing unit A and one second processing unit B are provided, but the present invention is not limited to this configuration. For example, two or more first processing units A and two or more second processing units B may be provided side by side. By providing a plurality of first processing units A or second processing units B, a large amount of food waste G can be processed. [Explanation of symbols]

[0044] 10. Screw conveyor (conveyor) 20 Hopper 30 Piping 32 Spray nozzle 40...Transfer machine 50 Shredder 60...Transfer machine 70, 70A, 70B... Dehydration pit 71, 71A, 71B...Bottom 72, 72A, 72B...Side wall 80 Hoist crane 81...Winding device 84...Running rail 90... blocks 100, 200... Food waste treatment device G. Kitchen waste Ga···Shredded food waste

Claims

1. A conveyor that transports food waste before shredding; A transporter that transports the food waste discharged from the conveyor; A shredder that shreds the food waste sent by the transporter; A concrete dewatering pit into which the food waste shredded by the shredder is poured; A concrete block is placed on the food waste stored in the dewatering pit to drain moisture from the food waste; and a hoist crane that moves the block at least in a vertical direction, The conveyor transports food waste from near the floor surface to above the side wall of the dewatering pit, The transporter transports food waste above a side wall of the dewatering pit, The shredder shreds food waste above the side wall of the dehydration pit and feeds the shredded food waste into the dehydration pit.

2. 2. The food waste treatment device according to claim 1, comprising: a transfer machine that sends the food waste shredded by the shredder; a pipe that guides the food waste sent by the transfer machine; and a spray nozzle provided in part of the pipe that deposits the food waste into the dehydration pit.

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