CN214516710U

CN214516710U - Food residue recycling equipment

Info

Publication number: CN214516710U
Application number: CN202120255424.8U
Authority: CN
Inventors: 上野广彬
Original assignee: Asd Co ltd
Current assignee: Zhejiang Aishida Electric Co Ltd; Asd Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-29
Publication date: 2021-10-29
Anticipated expiration: 2031-01-29
Also published as: CN114789182A; JP2022107271A

Abstract

The utility model relates to a food residue recycling equipment that will produce from domestic waste removes solid matter 48 from food residue in separator 12. The drying device 14 receives the fluidized food waste discharged from the separating device 12. The food residue dried by the first drying still 16 and the second drying still 18 constituting the drying device 14 is heated to be lumpy and received by the oil separator 22. The oil separator 22 removes heat and pressure from the food residue in the form of pieces, and separates oil from the food residue. The grinding device 26 receives the food waste and grinds it into a fine powder. Thus, the food residue is recycled as a fertilizer and a livestock feed.

Description

Food residue recycling equipment

Technical Field

The utility model relates to a food residue recycling equipment (Plant) that will produce from domestic waste.

Background

In these days, techniques for extracting resources such as fertilizers and livestock feeds from household garbage and the like after the household garbage and the like are classified are widely developed and applied. Patent document 1 describes an apparatus for automatically separating solid matter such as plastic bags, plastic products, metal waste, and food residues. Patent document 2 describes an apparatus for drying and recycling food residues.

[ patent document ]

[ patent document 1 ] Japanese patent application No. 2019-72677 (Chinese Utility model application No. 2019215516533)

[ patent document 2 ] Japanese patent application laid-open No. 906242

Food residues separated from household garbage contain a large amount of water, salt and oil. In order to convert it into fertilizer and livestock feed, it is necessary to remove such moisture, salt and oil to appropriate levels. The oil component can be separated and extracted for use in fuel and the like. Accordingly, the industry demands equipment that can efficiently separate these components.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus for efficiently separating and extracting moisture, salt and oil contained in food residues separated from household garbage.

Disclosure of Invention

< Structure 1 >

The utility model relates to a food waste resource equipment, a serial communication port, include: a drying device for removing solid matters from the food residue, receiving the fluidized food residue, and heating and drying the food residue; an oil removing device for pressurizing the food residue discharged from the drying device and separating oil; and a pulverizing device that receives and pulverizes the food residue discharged from the oil removing device, wherein the drying device includes: the first drying kettle is used for receiving the food residues, heating and stirring the food residues and then discharging the food residues; the second drying kettle receives the food residue discharged from the first drying kettle, further heats and stirs the food residue and then discharges the food residue; and a gas supply device for supplying the high-temperature gas inside the second drying kettle to the first drying kettle during operation, wherein the oil removal device comprises: and a compression device for compressing the food residue discharged from the drying device before returning the temperature thereof to normal temperature and then extruding the oil component.

Effects of the invention

Effect of < Structure 1 > described above

In the second drying oven, dust of dried food residues is generated. Generally, when the dried food residue is discharged from the second drying oven, the dust thereof pollutes the environment around the equipment. However, since the high-temperature gas containing the dust is sent from the second drying oven to the first drying oven, the pollution of the dust to the environment can be reduced. In addition, the gas with high temperature is sent into the first drying kettle occasionally, so that the energy used for heating in the first drying kettle can be saved. Further, since the food residue discharged from the drying device is compressed before the temperature returns to normal temperature, the oil content is easily separated after the food residue is fluidized by the temperature rise at the time of pressurization.

Drawings

Fig. 1 is a schematic view of the apparatus of the present invention.

Fig. 2A is a perspective view of the separation device with a portion cut away.

Fig. 2B is a cross-sectional view of the separation device.

Fig. 3 is a perspective view of an essential part of the separating apparatus.

Fig. 4 is a front view of the first drying pot.

Fig. 5 is a perspective view of the internal structure of the first drying oven.

Fig. 6 is a schematic configuration diagram of the oil removing device and the air supply device.

Fig. 7 is a schematic configuration diagram of the crushing apparatus.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

[ EXAMPLES one ]

(Equipment outline)

The apparatus shown in FIG. 1 is composed of a separating device 12, a dehydration treatment device 22, a drying device 14, and a pulverizing device 26 arranged in this order in accordance with the process. Details of the separating apparatus 12 are shown in figures 2A, B and 3; details of the drying device 14 are shown in fig. 4 and 5; the oil removing device 22 is shown in detail in fig. 6; the details of the comminution apparatus 26 are shown in figure 7.

First, an outline of the apparatus in fig. 1 is explained. Solids 48 are removed from the food waste in the separation device 12. The drying device 14 receives the fluidized food waste discharged from the separating device 12. The food residue heated and dried in the first drying still 16 and the second drying still 18 constituting the drying device 14 is turned into a lump and received by the oil removing device 22.

The oil removing device 22 heats and pressurizes the lumpy food residue to separate oil. The pulverizing device 26 receives the food residue discharged from the oil removing device 22 and then pulverizes the food residue into a fine powder. Thus, the food residue is recycled as a fertilizer and a livestock feed.

The drying device 14 includes a first drying kettle 16, a second drying kettle 18, and an air feeder 20. The first drying kettle 16 receives the food residue, heats and stirs the food residue, and discharges the food residue. The second drying kettle 18 receives the food residue discharged from the first drying kettle 16, heats and stirs the food residue, and then discharges the food residue. The gas supply device 20 supplies the high-temperature gas inside the second drying oven 18 into the first drying oven 16 during operation of the second drying oven 18.

The oil removing device 22 includes a compression device that pressurizes the food residue discharged from the drying device 14 before returning the temperature to normal temperature, and then extrudes the oil. In order to maintain the temperature during the pressurization, the residual heat generated in the drying device 14 is sent to the oil removing device 22 through the air sending device 82.

Since the oil is squeezed out after the food residue discharged from the drying device 14 is pressurized before the temperature returns to normal temperature, the oil is easily separated after the food residue is fluidized by the temperature rise at the time of pressurization, and the oil can be received by the extraction container 23 and recycled. In addition, the residual heat generated in the drying device is used to fluidize the oil component in the deoiling process, so that the oil component can be separated more efficiently.

(separation apparatus)

Fig. 2A and 2B illustrate a separation device 12 described in patent document 2. An example of a Food waste separating apparatus 12 is shown in fig. 2A, and a perspective view of a portion of a shroud (Food)44 is shown cut away. Fig. 2B is a cross-sectional view of the device shown in fig. 2A. The device has: a function of receiving food waste sealed in a garbage bag or the like from the inlet 46, pulverizing the food waste, and separating the plastic container and other solid materials 48 from the food waste 42.

The device is internally provided with: a rotating plate 52 which is rotatably supported by the rotating shaft 50, a claw 54 for cutting a garbage bag or the like, and a porous plate 56 for grinding and separating food waste. The food waste 42 having passed through the perforated plate 56 is discharged to the next step by the conveyor 28 disposed below the housing 44. The separated solid matter is discharged through the discharge port 47 and transported to another process by the transport device 30.

Fig. 3 is a perspective view showing the relationship between the rotating plate 52 and the perforated plate 56. As shown in the drawing, when the rotating plate 52 rotates in the direction of arrow E, the food container is knocked and comes into contact with the claw 54 (fig. 2B) to be cut, and the food residue 42 flies out. After that, the food waste 42 is crushed as well, and then pressed against the porous plate 56 by the rotating plate 52, ground and dropped as shown in fig. 3. Perforated plate 56 serves as a discharge. The conveyor 28 disposed immediately below the casing 44 of the separating device 12 shown in fig. 2A discharges the fallen food waste to the outside.

(drying apparatus)

Fig. 4 is an external side view of the drying kettle 14. An inlet 62 for introducing the food waste 42 (fig. 2B) is provided in the ceiling portion of the apparatus. The wall surface of the drying kettle 14 is heated by steam, the food residue 42 is stirred therein, and the dried food residue 42 is discharged from the discharge port 64.

Fig. 5 is a perspective view of the internal mechanism of the drying furnace 14, which is described in patent document 3. Several robot arms 66 are mounted around the rotation shaft 67. At the front end of each robot arm 66 is mounted a blade 70 with several claws 68. When the rotation shaft 67 is rotated, the blades 70 are rotated, and then the food residue is dried while being stirred. When the moisture contained in the food residue is reduced, the food residue becomes lumpy and adheres to the leaf 70. The claws 68 provided on the blades 70 break up the pieces thereof into small pieces and further promote drying thereof. This action is as described in patent document 2.

In the present invention, as shown in fig. 1, the first drying vessel 16 and the second drying vessel 18 are used, but the structures thereof are substantially the same. In the first drying kettle 16, the moisture content of the food residue is reduced to about 30-40%. Then, the food residue is sent to a second drying kettle 18, and the water content of the food residue is reduced to 5% -10% in the second drying kettle 18.

If the food residue is dried by the second drying oven 18, the dust of the food residue flies. When the dried food residue is discharged from the second drying kettle 18, the dust deteriorates the working environment. Therefore, the dust generated during the operation of the second drying vessel 18 is fed to the first drying vessel 16 together with the high-temperature gas. The dust is mixed with the food residue containing a large amount of water put into the first drying kettle 16, and then is not scattered into the atmosphere. Moreover, the high-temperature gas can be reused as a heat source of the first drying oven 16, thereby saving heat energy as a whole.

As shown in fig. 1, the air feeder 20 is connected between the first drying oven 16 and the second drying oven 18 by a pipe. The air supply device 20 may have the same structure as a known ventilation fan. Since high-temperature gas is transported, it is preferable to use a device having high heat resistance.

(oil removing device)

Fig. 6 is a schematic cross-sectional view of the oil separator 22. Food waste is fed into the cylinder 80 of the apparatus. The food waste 77 is compressed by driving the piston 78 in the direction of arrow P. In this way, the oil separated from the food residue after being pushed out flows down in the direction of arrow W and is stored in extraction container 23.

When the oil is squeezed out after the food residue discharged from the drying device is pressurized before the temperature of the food residue returns to the normal temperature, the oil with high fluidity contained in the food residue 77 is easily separated together with the water. Finally, the oil is resourced into resources such as fuel.

(crushing apparatus)

Fig. 7 is a schematic view of a pulverizing apparatus. The grinding device includes a mechanism for receiving the dried food residue pieces and rotating the agitator 88 to grind them, as shown in the figure. The food waste after being converted into fine powder falls through the net 90 and is stored in the resource container 76.

Description of the symbols

12 separating device

14 drying device

16 first drying kettle

18 second drying kettle

20 air supply device

22 oil removing device

23 extraction container

26 crushing device

28 conveying device

30 conveying device

44 casing

46 inlet

47 discharge port

48 solid matter

50 rotating shaft

52 rotating plate

54 claw

56 perforated plate

62 throwing-in mouth

63 inlet

64 discharge port

65 discharge port

66 mechanical arm

67 rotation axis

68 claw

70 blade

74 throwing port

76 resource container

77 food residue

78 piston

80 cylinder body

82 air supply device

88 stirrer

90 mesh.

Claims

1. A food waste recycling apparatus, comprising:

a drying device for removing solid matters from the food residue, receiving the fluidized food residue, and heating and drying the food residue;

an oil removing device for pressurizing the food residue discharged from the drying device and separating oil; and

a crushing device for receiving the food residue discharged from the oil removing device and crushing the food residue,

wherein the drying device includes:

the first drying kettle is used for receiving the food residues, heating and stirring the food residues and then discharging the food residues;

the second drying kettle receives the food residue discharged from the first drying kettle, further heats and stirs the food residue and then discharges the food residue; and

an air supply device which feeds the high-temperature gas in the second drying kettle into the first drying kettle in operation,

the oil removal device includes:

and a compression device for compressing the food residue discharged from the drying device before returning the temperature thereof to normal temperature and then extruding the oil component.