KR19980056357A - Vacuum Drying Device for Food Waste Disposal Vehicle - Google Patents

Abstract

The present invention relates to a vacuum drying apparatus for a food waste treatment vehicle, and particularly, to collect, transport, dehydrate, grind and dry food waste using a hydraulic device and an electric device driven by an auxiliary engine 40 provided in a vehicle. A series of food waste treatment apparatuses are installed in the vehicle frame 9, and the food waste treatment apparatus is a hopper 1 for storing food wastes, and a food debris-feeding while transporting food wastes put into the hopper 1 Dehydrator 10, a crusher (2l) for finely crushing the food waste transported from the transfer dewatering device 10 with a grinding roll 24 and the food waste transported from the crusher 10 It is composed of a drying device (30) for heating and drying in a vacuum while closing and rotating, collecting food waste discharged from homes or restaurants and recycling it as livestock feed or Drying during transport to an incinerator or landfill for angling and landfill treatment reduces the energy cost and time required for final reprocessing at a feed processing plant, or reduces leachate emissions after landfilling to landfill sites It is to prevent the.

Description

Vacuum Desiccator For Food Waste Disposal Truck

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum drying apparatus for automobiles that process food waste, and in particular, when the food waste is collected and transported to a treatment plant, the food waste is dehydrated and dried to be recycled as livestock feed or landfilled or incinerated. In the vehicle for treating food waste which can be treated in a removed state, the present invention relates to a vacuum drying apparatus that dehydrates food waste that has been dried by vacuum.

Currently, a large amount of food waste discharged from homes or restaurants is landfilled or incinerated in landfills or incinerators, or recycled as animal feed.

However, the food waste contains a large amount of water, and the landfill after discharged from the landfill discharges leachate, causing pollution problems such as odor, and when incinerated, the waste is incompletely burned by the moisture of the food waste to release smoke. There is a problem that takes a lot of energy to completely burn the.

In addition, since the food waste contains a large amount of water, there is a problem in that it takes a lot of energy and time to recycle the food waste into livestock feed by fermenting the food waste.

In order to solve this problem, many kinds of food waste treatment devices are designed and used to reprocess wet food waste as feed or to dry it before landfilling or incineration, but most of these conventional food waste processing devices are used in landfills, yards or feed. Most of the stationary molds are fixed and installed near the machine. Therefore, in order to transport food waste from the home or restaurant, which is the source of food waste, to the conventional food waste processing apparatus, a general garbage transport vehicle is used, so that water emitted from the food waste during transportation is spilled on the road, causing odors and causing pollution problems. It is happening.

Therefore, the present invention is designed to solve the above problems, by collecting the food waste to remove the water during transportation to the processing plant such as feed processing or incinerator or landfill, drying to reduce the energy and time to feed processing and at the same time food waste [0003] An object of the present invention is to provide a vacuum dewatering device for removing residual moisture by applying a vacuum to a heated and dried food waste.

The present invention for achieving the above object is a series of processing devices for collecting, dehydrating, pulverizing and drying food waste by using a hydraulic device and an electric device driven by a vehicle auxiliary engine is installed in a vehicle frame, the food waste processing apparatus Is a hopper for holding food waste, a transfer dehydration apparatus for compressing and dehydrating while transporting the food waste put into the hopper, and a pulverizing apparatus for finely crushing the food waste from which the water is firstly removed from the transfer dehydration apparatus. It consists of a drying device that contains the transported food waste, rotates it and heats it while drying the moisture remaining on the food waste.

The food waste treatment vehicle of the present invention having such a configuration collects food waste discharged from a home or a restaurant, and is dried in an incineration plant, a landfill site, or a feed transported to a factory, and finally landfilled in a landfill site, and thus pollution by leachate, etc. In the case of incineration at the incinerator, it can reduce the energy consumption for incineration without generating soot from incomplete combustion, and in particular, it can reduce the energy cost and time required for recycling as feed. It is.

1 is an exterior front view of a vehicle for treating food waste in accordance with the present invention, the exterior front view of the rear door being opened;

Figure 2 is a front view showing the arrangement of the food waste treatment apparatus by removing the cover of the food waste treatment vehicle according to the present invention,

3 is an enlarged view of a connection portion between a hopper and a transfer dehydration apparatus of a food waste treatment vehicle according to the present invention;

Figure 4 is a longitudinal cross-sectional view showing the longitudinal direction of the transport dehydration apparatus of the food waste treatment vehicle according to the invention,

Figure 5a is a cross-sectional view of the combined crushing apparatus of the vehicle for food waste treatment according to the present invention,

5B is a cross-sectional view taken along the line A-A of FIG. 5A;

6 is a view of a drying apparatus for a food waste treatment vehicle according to the present invention, (a) is a front view of the drying apparatus, (b) is a sectional view taken along line AA of FIG. 6a, and (c) is a side view of the drying apparatus. ,

7 is a schematic diagram of a drive system of a food waste treatment apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Hopper 2: Magnetic band

3: support base 4: trash can lifting device

5: hydraulic cylinder 6: food waste container

7: cover 8: door

9: frame 10: transfer dewatering device

11: upper cylinder 12: upper cylinder outlet

13: lower cylinder 14: lower cylinder inlet

15: transfer screw 15a: transfer unit

15b: dehydration portion 15c: pin

16: shaft 17: strainer

18: outer cylinder 19: sewage discharge outlet

20: sewage tank

21: grinder 22: grinder inlet

23: grinding hopper 24: grinding roll

30: drying apparatus 31: barrel

31a: water vapor outlet 31b: food waste inlet

32: rotating shaft 33: stirring blade

34: hot water path 35: hot water pipe

37: on-off valve 38: barrel outlet

40: auxiliary engine 41: hydraulic pump

42: hydraulic motor for feed screw 43: hydraulic motor for grinding roll

44: cylinder for the door opening and closing device 45: oil tank

46: support

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a front view showing the external structure of the food waste treatment vehicle according to the present invention. Figure 2 is a front view schematically showing the structure and arrangement of the food waste treatment apparatus installed in the vehicle for food waste treatment according to the present invention.

1 and 2, the food waste treatment vehicle according to the present invention is provided with a food waste treatment apparatus for collecting and drying food waste on a frame 9, and this food waste treatment apparatus. 7, as shown in Figure 7, the main engine for supplying a driving power to the vehicle is driven by a separate auxiliary engine 40 is contained in the food waste during the vehicle according to the present invention to the food waste treatment plant Moisture can be dried.

The food waste treatment apparatus, as shown in Figure 2, is installed in the rear end of the vehicle and the conical hopper (1) for storing food, and in communication with the hopper (1) in the lower portion of the conical hopper (1) Transfer dehydration device 10 for transporting the food waste contained in the hopper to the next step and at the same time dewatering the transported food waste first, and the food dehydrated from the transport dehydration device 10 It consists of a pulverizing device 21 for finely crushing the waste, and a drying device 30 for vacuum drying the food waste crushed in the crushing device 21.

And the rear of the vehicle according to the invention is provided with a trash can lifting device (4) is to lift the food waste bin (6) up to the hopper (1), the trash can lifting device (4) is the auxiliary engine (40) As the hydraulic cylinder 5, which is operated by the expansion and contraction, the pedestal 3 is raised and lowered, the food waste bin 6 placed on the pedestal 3 is raised or lowered. And this lifting device 4 may be installed on the rear side of the vehicle as needed.

On the other hand, as shown in Figure 3, the inner band of the hopper (1) is attached to the magnetic band (2) is attached to the foreign matter of the metal material contained in the food waste is not to flow into the transport dehydration device (10) have.

As shown in FIG. 2, the transfer dewatering device 10 is arranged to extend from the bottom of the hopper 1 to the tip of the inlet 22 of the pulverizing device 21. It is supported on) and consists of cylindrical shape as a whole.

And the transfer dewatering device 10, as shown in detail in Figure 4, the upper cylinder 11 is flanged coaxially with each other and the lower cylinder 13, the upper cylinder 11 is the outlet (top) 12 is formed and connected to the grinding device 21, the lower cylinder 13 has an inlet 14 is formed in the lower portion is in communication with the lower end of the hopper 1, while the upper cylinder ( 11) and the lower cylinder 13 is inserted into the transfer screw 15 is rotatably inserted therein, the transfer screw 15 is rotated by the hydraulic motor 42 provided at the lower end of the lower cylinder 13 The food waste introduced through the inlet (14) of the) is pushed to the upper cylinder 11, the upper end to the crusher 21 through the outlet (12).

In this case, the conveying screw 15 has a relatively large pitch on the shaft 16 disposed in the lower cylinder 13, and a fin 15c fin is formed in a spiral shape to convey food waste. ), And a dehydration part for dehydrating while dehydrating food waste by compressing food waste (15c) spirally installed on the shaft 16 disposed in the upper cylinder 11, the pitch of which is relatively small and the pitch gradually decreases toward the top. 15b). In addition, the filter net 17 is inserted into the outer side of the dewatering part 15b of the conveying screw 15 so as to discharge only the sewage generated when the food waste is compressed in the dewatering part 15b into the outer cylinder 18 and the sewage. Is stored in the outer cylinder 18 and is discharged to the sewage tank 20 installed on the outside of the dewatering portion (15b) through the sewage discharge port 19 provided in the lower portion. Here, as another embodiment of the transfer dewatering device 10, the shaft 16 on the side of the transfer part 15a of the transfer screw 15 has a constant shaft diameter, thereby only feeding the food waste and providing the dehydration part 15b. The shaft 16 may have a tapered shape in which the shaft diameter gradually increases toward the upper end, so that the inner space of the upper cylinder 11 gradually decreases toward the upper end. In addition, the upper cylinder 11 and the lower cylinder 13 and the inner strainer 17 is made of stainless steel to prevent corrosion by sewage. The crusher 21 interconnected with the distal end 12 of the upper cylinder 11 crushes the food waste which has been primarily dehydrated and transported in the dewatering part 15b to a small size.

As shown in FIGS. 5A and 5B, the grinding device 21 is provided with a grinding hopper 23 under the upper end of the upper cylinder 11, and below the grinding hopper 23. A crush roll 24 is engaged to rotate in the opposite direction to finely crush the food waste falling from the crush hopper 23.

The drying device 30 is disposed below the grinding device 21 to heat the food waste introduced through the inlet 31b in the grinding device 21 to dry and dehydrate the residual moisture contained in the food waste. It is. As shown in FIG. 6A, the drying apparatus 30 has a barrel 31 fixed to the vehicle frame 9, and a rotation shaft 32 is disposed in the barrel 31 in the central axis direction. It is rotatably installed and a plurality of stirring blades 33 are attached to the rotating shaft 32 to rotate as the rotating shaft 32 rotates to stir the food waste contained in the barrel 31.

On the other hand, as shown in Figure 6b or 6c, the rotary shaft 32 and the stirring blade 33 is provided with a hot water passage 34 in communication with each other, the hot water passing through the hot water passage 34 is passed through While the food waste is heated in the barrel 31 by heat, it is designed to dry and dehydrate it. The hot water pipe 35 communicating with the hot water passage 34 provided on the stirring blade 33 and the rotating shaft 32 is also tightly wound on the outer circumferential surface of the barrel 31 to pass the hot water passage 34. The outer peripheral surface of the barrel 31 is heated while circulating through the hot water pipe 35, and the food waste contained in the barrel 31 is doubled to increase the drying rate. In addition, a vacuum pump (not shown) is connected to the barrel 31, and an opening / closing valve 37 is provided at an end of the inlet of the barrel 31 to seal the inlet with the on / off valve 37. When the pump (not shown) is operated, the dehydration efficiency inside the barrel 31 is extracted by extracting water vapor generated as food waste is heat-dried inside the barrel 31 to the outside through the water vapor outlet 31a at the top of the barrel 31. It is supposed to increase. And the lower end of the barrel 31 is provided with a discharge port 38 to discharge the dried food waste.

On the other hand, the food waste treatment apparatus is to be operated by the auxiliary engine 40 provided separately from the main engine of the vehicle, the operation system is operated by the auxiliary engine 40 as shown in FIG. The hydraulic pump 41 is a hydraulic motor 42 for the conveying screw 15 for driving the conveying screw 15 of the conveying dewatering device 10 and the grinding roll 24 of the pulverizing device 21 As the hydraulic pump 41 is connected to the hydraulic motor 43 for rotating the grinding roll 24 and the door opening and closing cylinder 44 for opening and closing the automobile door, the hydraulic pump 41 is driven by the auxiliary engine 40. The oil of the oil tank 45 is pumped to supply the pressurized oil to the respective motors 42 and 43 to operate the respective devices connected to the respective motors 42 and 43. And the food waste treatment apparatus is covered with a cover (7), as shown in Figure 1 to block the rain water and the like to enter the hopper (1) and at the same time beautiful appearance, the cover (7) The rear end of the door 8 is openable.

Operation of the food waste treatment apparatus of the present invention configured as described above will be described step by step.

Input stage: The hydraulic system is operated by the driving force of the auxiliary engine 40, the cover door is opened, the food waste container 6 containing the food waste is lifted by the lifting device 4, and the food waste contained therein is in the hopper (1). Put in. And the magnetic band (2) provided on the inner wall of the hopper (1) is attached so that foreign substances, such as cutlery, etc. of the metal material contained in the food waste does not flow into the transport dehydration unit.

Transfer dehydration step: while conveying the food waste introduced through the outlet of the hopper 1 while the transfer screw 15 installed in the lower cylinder 13 is rotated by the hydraulic motor 42 provided at the bottom The dewatering part 15b of the conveying screw 15 is pressurized and dehydrated to convey the food waste which is conveyed by reducing the screw pitch to the grinding hopper 23 of the pulverizing device 21 through an outlet provided at the upper end. Put it in. At this time, the sewage generated when the dewatering part 15b pressurizes the food waste passes through the strainer 17 surrounding the outside of the screw 15 of the dewatering part 15b, and is stored in the outer cylinder 18 and then connected to the outlet. It is discharged and stored in the sewage tank 20 through.

Grinding step: The food waste transported to the grinding hopper 23 after dehydration in the transfer and dehydration step falls on the grinding roll 24 provided in the lower part of the hopper 1 and the grinding roll 24 rotates. The cutter provided in the grinding roll 24 rotates to crush the food waste finely.

Drying step: When the food waste is crushed in the crushing step to open the on-off valve 37 provided at the bottom of the crushing device 21, finely crushed food waste is put into the barrel 31 of the drying device (30) The hot water passage 34 and the hot water pipe wound outside the barrel 31 while stirring the food waste while the stirring blade 33 inside the barrel 31 rotates ( 35, the hot water is passed into the array 31 to heat the food waste being agitated in the array 31, and then the inlet 31b is sealed with the opening / closing valve 37 provided at the bottom of the crushing device 21 in a vacuum state. By operating the pump to make the interior of the barrel 31 in a vacuum state, the residual moisture contained in the food waste in the barrel 31 is vacuum-dehydrated to increase drying efficiency.

As described above, the vehicle for treating food waste according to the present invention includes a dehydration apparatus for compressing and dehydrating food waste, a crushing apparatus 21 for pulverizing finely dehydrated food waste from the dehydration apparatus, and the pulverization. A food waste treatment device comprising a drying device 30 for heating and vacuuming the food waste pulverized in the apparatus 21 in a vacuum state is installed on the automobile frame 9 to incinerate or contain landfill waste. Drying before landfilling or reprocessing with feed prevents polluting the environment by generating leachate, etc.In case of incineration, it can prevent the generation of soot and reduce the energy required for incineration. Reduce energy costs and time spent recycling for feed.

In addition, each device for treating the food waste is operated by using a hydraulic device and an electric device driven by the auxiliary engine 40 provided separately from the main engine of the vehicle, so that the drying process is carried out while transporting the food waste to an incinerator or landfill. It is possible to improve the food waste disposal efficiency.

Claims (1)

Hopper (1) for storing and storing food waste, and a transfer dehydration device is installed in communication with the hopper at the bottom of the hopper (1) and decompresses and dehydrates while transporting the food waste in the hopper (1) to the next step (10) ), And a drying device 30 for heating and vacuum drying the food waste dewatered primarily from the transfer dehydration device 10 to remove moisture, and the drying device 30 is a barrel in the vehicle frame 9. (31) (barrel) is fixed and installed inside the barrel 31, the rotating shaft 32 is rotatably installed in the direction of the central axis, a plurality of stirring blades 33 are attached to the rotating shaft (32) to the While rotating as the rotary shaft 32 rotates, the food waste contained in the barrel 31 is stirred, while the rotary shaft 32 and the stirring blade 33 are provided with hot water passages 34 communicating with each other. As well as the barrel 31 The hot water pipe 35 communicating with the hot water passage 34 provided on the stirring blade 33 and the rotating shaft 32 is also tightly wound on the outer circumferential surface of the hot water passage 34 and the hot water. As the heat passes through the pipe 35, the food waste agitated inside the array 31 is heated to dry and dehydrate the food waste, and a food waste treatment device is fixedly installed on the vehicle frame 9 to bury food waste. In the automobile for food waste treatment to be dried before incineration, the food waste inlet 31 of the barrel 31 is provided with an opening / closing valve 37 and the barrel 31 has a vacuum pump communicating with the barrel 31. A vacuum drying device for a vehicle for treating food waste, which is to dehydrate food waste by vacuuming the inside.