CN111229778A - Device and method for treating rural domestic waste - Google Patents

Abstract

The invention discloses a rural domestic waste treatment device and method. The device comprises a feeding hopper, a squeezing chamber, a liquid chamber, a sorting chamber, a pulverizing chamber and a composting chamber which are connected in sequence; the squeezing chamber is provided with a squeezing plate, The liquid chamber is communicated with the composting chamber through a liquid transfer pipe, a sorting rotating shaft is arranged in the sorting chamber, a plurality of groups of crushing rotating shaft groups are arranged in the crushing chamber, and a stirring shaft is arranged in the composting chamber; The main domestic garbage, the domestic garbage is extruded, sorted and crushed in sequence, and after aerobic composting, it becomes a crop fertilizer that can be reused. The invention realizes the recycling of resources and protects the environment through the treatment of rural domestic garbage.

Description

Device and method for treating rural domestic waste

technical field

The present invention relates to a treatment device and method, in particular to a rural domestic garbage treatment device and method.

Background technique

In the past, most of the rural household garbage disposal methods were handled by villagers in accordance with the principle of proximity, and the garbage was randomly dumped in open areas such as ditch, river, pond, and roadside, resulting in piles of garbage, which affected the appearance of the village. Affect people's living environment; or use incineration for garbage disposal. However, most of the rural domestic garbage is mainly organic matter such as food residues, paper scraps, plants or crops, and the organic matter is oxidized under the conditions of high temperature and sufficient oxygen supply. Gaseous substances and inorganic non-combustible substances not only pollute the environment seriously, but also cause waste of resources. Therefore, there is an urgent need to provide a rural domestic garbage disposal device, which can fully utilize the organic substances in the rural garbage disposal, realize the recycling of resources, and reduce the harm to the environment.

SUMMARY OF THE INVENTION

In order to solve the shortcomings of the above technologies, the present invention provides a device and method for treating rural domestic waste.

In order to solve the above technical problems, the technical scheme adopted in the present invention is: a rural domestic waste treatment device, which includes a feeding hopper, and also includes a squeezing chamber, a liquid chamber, a sorting chamber, a crushing chamber and a composting chamber;

The feeding hopper is located above the extrusion chamber and communicated with the extrusion chamber. The bottom wall of the extrusion chamber is provided with a drip hole, the liquid chamber is located below the extrusion chamber, and the liquid chamber is communicated with the extrusion chamber through the drip hole. ;

The front and rear side walls of the extrusion chamber are symmetrically installed with extrusion plates, and the extrusion plates are connected with extrusion motors; the left side wall of the extrusion chamber is equipped with a pusher plate, which is connected with a pusher motor. The right side wall of the pressing chamber is provided with a feeding opening, the feeding opening is provided with a gate, and the gate is connected with a hydraulic cylinder; a gate passing channel is formed in the right wall of the extrusion chamber, and the piston of the hydraulic cylinder longitudinally passes through the gate The plate passes through the channel and is fixedly connected with the gate;

A feeding chute is fixedly connected to the outer side of the feeding opening, a receiving opening is provided on the top wall of the sorting chamber, and the feeding chute extends to the receiving opening; a sorting rotating shaft is horizontally arranged in the left-right direction in the sorting chamber, and the sorting rotating shaft is connected with a Sorting motor; there is also a garbage discharge port on the front side wall of the sorting room;

The crushing chamber is located below the sorting chamber. There is a No. 1 filter screen between the crushing chamber and the sorting chamber, and the No. 1 filter screen connects the crushing chamber and the sorting chamber; A set of pulverizing rotating shafts includes two cogging pulverizing rotating shafts, and baffle plates are arranged on both sides of a group of pulverizing rotating shaft groups; one end of the pulverizing rotating shaft is connected with a pulverizing motor, and the other end is fixedly connected with a gear; the front of the pulverizing chamber is A coarse material collection door is arranged on the side wall, the crushing chamber is connected with a crushing material transfer pipe at the right side wall, a No. 2 filter screen is arranged in the crushing material transport pipe, and the crushing chamber is communicated with the composting chamber through the crushing material transport pipe;

The composting chamber has a double-walled structure, the double-walled structure forms a sandwich cavity, and an electric heater is arranged in the sandwiching cavity; a stirring shaft is installed in the composting chamber, and the stirring shaft is connected with a stirring motor, and the composting chamber is also connected with a metering pump and a blower. A pump is used to add aerobic microorganisms for composting, and a blower is used to introduce oxygen.

Further, the feeding trough is composed of a horizontal trough body and an inclined trough body which are welded as a whole, the horizontal trough body is fixedly connected with the extrusion chamber, and the inclined trough body is located at the receiving opening.

Further, the middle position of the No. 1 filter screen is set as a blocking plate, the two sides of the blocking plate are symmetrically connected with the filter screen plate, and the pulverizing rotating shaft is located below the filter screen plate.

Further, the pulverizing rotating shaft has a shaft body, the interior of the shaft body is hollow, the shaft body is also provided with a water spray hole, and one end of the shaft body connected to the gear passes through the gear and communicates with a water nozzle.

Further, a crushing tooth plate is fixed and surrounded on the shaft body, a through groove is formed on the crushing tooth plate, and the water spray hole is located in the through groove.

Further, the composting chamber is also connected with a liquid transport pipe, and the liquid transport pipe is communicated with the liquid chamber.

Further, the extrusion chamber and the liquid chamber are jointly installed on the bracket.

Further, the diameter of the drip hole is not greater than 15mm, the mesh diameter of the filter screen plate of the No. 1 filter is 50-80mm, and the diameter of the mesh of the No. 2 filter is 15-30mm.

A working method of a rural domestic waste treatment device, specifically: preliminarily classifying all the waste, obtaining domestic waste mainly composed of organic matter, and then feeding the domestic waste from a feeding hopper into an extrusion chamber, at this time , the gate is closed, the extrusion motor is started, and the extrusion motor drives the extrusion plate to squeeze the domestic garbage in the extrusion chamber, and the extruded liquid material drips from the drip hole into the liquid chamber;

After the extrusion is completed, open the gate and start the pusher motor. The pusher motor pushes the extruded domestic garbage from the feeding opening into the feeding chute, and the domestic garbage is fed from the receiving opening by the feeding chute. Go to the sorting room; start the sorting motor, and the sorting motor drives the sorting shaft to rotate. Under the centrifugal force generated by the sorting shaft and the shearing action of the sorting blades of the sorting shaft, the soft domestic waste is initially sheared into The small particle size garbage is thrown onto the wall of the sorting chamber, and finally enters the crushing chamber through the No. 1 filter screen; the hard domestic garbage with a large particle size cannot be cut and cannot pass through the No. Under the action of the axial thrust generated by the rotation, it gradually moves to the right end and is finally discharged from the waste discharge port;

The soft garbage entering the crushing chamber is organic material, and falls to the crushing shaft under the blocking action of the baffle, and the soft garbage is fully crushed by the crushing rotation shaft. Qualified soft garbage that meets the composting requirements, qualified soft garbage enters the composting room through the crushing material transfer pipe 11; inside the hopper;

The qualified soft waste entering the composting room becomes fertilizer that can be used for crop planting after aerobic composting.

The invention discloses a rural domestic garbage processing device, which fully utilizes the organic substances in the rural domestic garbage. It also solves the environmental pollution problem caused by littering or incineration of traditional domestic waste, and is more conducive to building a better rural living environment.

Description of drawings

FIG. 1 is a schematic diagram of the overall composition of the present invention.

FIG. 2 is a partial schematic view of the internal structure of the extrusion chamber in FIG. 1 .

FIG. 3 is a schematic structural diagram of the feeding chute in FIG. 1 .

FIG. 4 is a schematic structural diagram of the No. 1 filter in FIG. 1 .

FIG. 5 is a schematic structural diagram of the pulverizing rotating shaft in FIG. 1 .

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 5 .

FIG. 7 is a front view of the sorting chamber and the crushing chamber in FIG. 1 .

In the figure: 1. Feeding hopper; 2. Extrusion chamber; 21. Drip hole; 22. Extrusion plate; 23. Extrusion motor; 24. Feeding port; 25. Gate plate; 26. Hydraulic cylinder; 27. Pusher Material plate; 28. Pushing motor; 3. Bracket; 4. Liquid chamber; 5. Feeding chute; 51. Horizontal chute; 52. Inclined chute; 6. Sorting chamber; 61. Receiving opening; 62. Separation Picking shaft; 63. Sorting motor; 64. Garbage discharge port; 7. No. 1 filter screen; 71. Barrier plate; 72. Filter screen plate; 8. Grinding chamber; 81. Baffle plate; 82. Grinding shaft; 83, Crushing motor; 84, gear; 85, water nozzle; 86, coarse material collection door; 821, shaft body; 822, crushing tooth plate; 823, through groove; 824, water spray hole; 9, compost chamber; 91, clamp cavity; 92, electric heater; 93, stirring shaft; 94, stirring motor; 95, metering pump; 96, blower; 10, liquid transfer pipe; 11, crushed material transfer pipe; 12, No. 2 filter screen.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , a rural domestic waste treatment device includes a feeding hopper 1 , an extrusion chamber 2 , a liquid chamber 4 , a sorting chamber 6 , a crushing chamber 8 and a composting chamber 9 ;

Wherein, the feeding hopper 1 is located above the extrusion chamber 2 and communicated with the extrusion chamber 2, and the feeding hopper 1 is more conducive to the centralized feeding of domestic waste into the extrusion chamber 2;

The extrusion chamber 2 mainly squeezes the domestic garbage. Since the domestic garbage has been preliminarily classified before being sent to the extrusion chamber 2, the domestic garbage entering the extrusion chamber 2 is mainly kitchen waste and crop residues. Therefore, the liquid substances in it, such as grease and water, are squeezed out first through the extrusion chamber 2, thereby reducing the viscosity of the domestic garbage, which is more conducive to the subsequent sorting operation.

In order to realize the extrusion treatment of domestic garbage, as shown in FIG. 2, extrusion plates 22 are symmetrically installed on the front and rear side walls of the extrusion chamber 2, and the extrusion plates 22 are connected with extrusion motors 23; The last two pressing plates 22 complete the pressing of the domestic waste; at the same time, a drip hole 21 is opened on the bottom wall of the pressing chamber 2, the liquid chamber 4 is located below the pressing chamber 2, and the liquid chamber 4 passes through the dripping hole 21. The hole 21 is communicated with the extrusion chamber 2, so that the extruded liquid substance can fall into the liquid chamber 4 through the drip hole 21; usually, the diameter of the drip hole 21 is not larger than 15mm, which can avoid the drop of non-liquid substances as much as possible. fall into the liquid chamber 4;

After the extrusion is completed, the domestic garbage needs to continue to be sent to the next level of treatment. As shown in Figure 1, a pusher plate 27 is installed on the left side wall of the extrusion chamber 2, and the pusher plate 27 is connected with a pusher motor. 28, the right side wall of the extrusion chamber 2 is provided with a feeding opening 24, so that under the action of the pushing plate 27, the domestic garbage is sent out from the feeding opening 24; however, the extrusion operation is performed on the extrusion plate 22 At this time, it is necessary to keep the extrusion chamber 2 in a closed state. Therefore, a gate 25 is provided at the feeding opening 24, and the gate 25 is connected with a hydraulic cylinder 26. The right side wall of the extrusion chamber 2 forms a gate through Through the passage, the piston of the hydraulic cylinder 26 passes through the gate longitudinally through the passage and is fixedly connected with the gate 25, so that the hydraulic cylinder 26 pulls the gate 25 to move up and down in the feeding opening 24 and the gate passing through the passage;

After being squeezed by the extrusion chamber 2, the domestic garbage is continuously sent into the sorting chamber 6; as shown in FIG. A receiving opening 61 is provided, and the feeding chute 5 extends to the receiving opening 61, so as to realize the transfer of domestic garbage through the feeding chute 5, so as to send the garbage in the extrusion chamber 2 into the sorting chamber 6; the feeding chute 5 The specific structure is shown in Figure 3. The feeding chute 5 is composed of a horizontal tank body 51 and an inclined tank body 52 that are welded as a whole. In addition, the extrusion chamber 2 and the liquid chamber 4 are jointly installed on the bracket 3 to ensure that the position of the feeding chute 5 is higher than the sorting chamber 6 .

As shown in FIG. 1 , a sorting rotating shaft 62 is horizontally arranged in the left-right direction in the sorting chamber 6 , and the sorting rotating shaft 62 is connected with a sorting motor 63 ; the front side wall of the sorting chamber 6 is also provided with a garbage discharge port 64 . The sorting shaft 62 is driven by the sorting motor 63 to rotate, and the sorting blades of the sorting shaft 62 form a knife-edge structure at the edge, which has a certain shearing effect, so that the soft domestic waste such as crops and vegetables can be processed. Shearing; and, during the high-speed rotation of the sorting shaft 62, an axial thrust will be generated, and the hard household garbage such as bones, plastic bags and bottles remaining in the initial sorting will be discharged from the garbage discharge port 64;

After the soft domestic waste is sheared, it needs to be sent to the crushing chamber 8 for further crushing to meet the needs of composting; as shown in Figure 1, the crushing chamber 8 is located below the sorting chamber 6, and the crushing chamber 8 and the A No. 1 filter screen 7 is arranged between the sorting chambers 6, and the No. 1 filter screen 7 is connected to the crushing chamber 8 and the sorting chamber 6. Usually, the mesh diameter of the filter screen plate 72 of the No. 1 filter screen 7 is 50-80mm. Therefore, the particle size of the soft household garbage is reduced after being cut, and the soft household garbage can basically pass through the No. 1 filter screen 7; while the hard household garbage has a large particle size and cannot pass through the No. 1 filter screen 7. Then, it is sent out by the sorting shaft 62 .

In the pulverizing chamber 8, there are several groups of pulverizing rotating shafts arranged horizontally along the front and rear directions. Garbage is fully smashed. Since the crushing shafts work in groups, in order to make the soft garbage passing through the No. 1 filter screen 7 all reach the place where the crushing shaft 82 is located, now take the case where there are two sets of crushing shafts as an example to illustrate. First, as shown in Figure 4, a The middle position of the filter screen 7 is set as a blocking plate 71, the two sides of the blocking plate 71 are symmetrically connected with the filtering screen plate 72, and the crushing shaft 82 is located below the filtering screen plate 72; Baffles 81 are provided, and the baffles 81 are fixedly connected to both ends of the filter screen plate 72, so that the soft domestic garbage passes through the filter screen plate 72, and under the blocking effect of the baffle plate 81, the soft garbage can be effectively prevented from going around. splash;

As for the pulverizing rotating shaft 82, its structure is shown in FIG. 5. The pulverizing rotating shaft 82 is connected with a pulverizing motor 83 at one end and a gear 84 is fixedly connected at the other end; There is a pulverizing tooth plate 822, so that the two pulverizing rotating shafts in a group of pulverizing rotating shafts are meshed with the pulverizing tooth plate 822 to realize the pulverization of soft garbage;

At the same time, the shaft body 821 of the pulverizing rotating shaft 82 is hollow inside, and one end of the shaft body 821 connected to the gear 84 passes through the gear 84 and communicates with the water nozzle 85, and the shaft body is also provided with a water spray hole 824, and the pulverizing tooth plate 822 is A through groove 823 is opened, and the water spray hole 824 is located in the through groove 823. Therefore, by spraying clean water through the water spray hole 824, the soft garbage left on the pulverizing shaft 82 can be washed down to achieve a certain cleaning effect. The fluidity of the soft domestic waste in the crushing chamber 8 is increased, so as to facilitate its continuous entry into the composting chamber 9 for composting.

The crushing chamber 8 is communicated with the composting chamber 9 through the crushed material transfer pipe 11, and the second filter screen 12 is arranged in the crushed material transport pipe 11. The soft garbage with a large diameter can pass through the No. 2 filter screen 12, and the soft garbage with too large particle size is left in the crushing chamber 8; A coarse material collection door 86 is sealed on the wall.

The composting chamber 9 is a place for composting, which has a double-walled structure. The double-walled structure forms a sandwich cavity 91. An electric heater 92 is arranged in the sandwiching cavity 91, and the temperature is adjusted by the electric heater; at the same time, the composting chamber 9 A stirring shaft 94 is installed inside, and the stirring shaft 94 is connected with a stirring motor 93. The stirring motor 93 drives the stirring shaft 94 to rotate to stir the raw materials of the composting treatment to achieve better response; the composting chamber 9 is also connected with a metering pump 95 and a blower 96 , the metering pump 95 is used for adding aerobic microorganisms for composting, and the blower 96 is used for introducing oxygen; in addition, the composting chamber 9 is also connected with a liquid transport pipe 10, and the liquid transport pipe 10 is communicated with the liquid chamber 4, thereby connecting the liquid chamber 4. The collected liquid substances are sent into the composting chamber 9 for composting together.

The present invention also discloses a working method of a rural domestic waste treatment device, which is specifically as follows: the domestic waste obtained by sorting the domestic waste is fed into the extrusion chamber 2 from the feed hopper 1, and at this time, the gate 25 is closed, The squeezing motor 23 is started, and the squeezing plate 22 is driven by the squeezing motor 23 to squeeze the domestic garbage in the squeezing chamber 2, and the squeezed liquid substance drips from the drip hole 21 into the liquid chamber 4;

After the extrusion is completed, open the gate 25, start the pusher motor 28, and the pusher motor 28 pushes the extruded domestic garbage from the feeding opening 24 into the feeding chute 5, and the feeding chute 5 pushes the domestic garbage from the feeding chute 5. The receiving opening 61 is sent into the sorting chamber 6; the sorting motor 63 is activated, and the sorting shaft 62 is driven to rotate by the sorting motor 63, and the centrifugal force generated on the sorting shaft 62 and the shearing of the sorting blades of the sorting shaft 62 Under the cutting action, the soft household garbage is initially cut into small particle size garbage and thrown onto the wall of the sorting chamber 8, and finally enters the crushing chamber 8 through the No. 1 filter 7; The garbage cannot be sheared and cannot pass through the No. 1 filter screen. Under the action of the axial thrust generated by the rotation of the sorting shaft 62, the garbage gradually moves to the right end and is finally discharged from the garbage discharge port 64;

The soft garbage entering into the pulverizing chamber 8 is an organic substance, which falls to the pulverizing shaft 82 under the blocking action of the baffle 81, and the soft garbage is fully pulverized by the pulverizing shaft 82. After the pulverization is completed, it is filtered by No. The net 12 screens out the qualified soft garbage whose particle size meets the composting requirements, and the qualified soft garbage enters the composting room 9 through the crushing material transfer pipe 11; Collected centrally and sent to feeding hopper 1 again;

The qualified soft garbage entering the composting chamber 9 becomes fertilizer that can be used for crop planting after aerobic composting.

The device and method for treating rural domestic waste disclosed in the present invention make full use of the organic matter in the rural domestic garbage. It not only solves the problem of environmental pollution caused by littering or incineration of traditional domestic garbage, but also helps to build a better rural living environment.

The above-mentioned embodiments are not intended to limit the present invention, and the present invention is not limited to the above-mentioned examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the technical solutions of the present invention also belong to the present invention. the scope of protection of the invention.

Claims (9)

1. A rural domestic waste treatment device, comprising a feeding hopper (1), characterized in that: it also comprises a squeezing chamber (2), a liquid chamber (4), a sorting chamber (6), and a pulverizing chamber (8) and composting room (9); The feeding hopper (1) is located above the extrusion chamber (2) and communicates with the extrusion chamber. The bottom wall of the extrusion chamber (2) is provided with a drip hole (21), and the liquid chamber (4) is located in the extrusion chamber (2). Below the pressure chamber (2), and the liquid chamber (4) communicates with the squeeze chamber (2) through the drip hole (21); Squeeze plates (22) are symmetrically installed on the front and rear side walls of the extrusion chamber (2), and the extrusion plates (22) are connected with an extrusion motor (23); A pusher plate (27) is installed on the side wall, the pusher plate (27) is connected with a pusher motor (28), and a feeding opening (24) is provided on the right side wall of the extrusion chamber (2). (24) is provided with a gate (25), the gate (25) is connected with a hydraulic cylinder (26); a gate passing channel is formed in the right side wall of the extrusion chamber (2), and the hydraulic cylinder (26) The piston passes through the gate longitudinally through the channel and is fixedly connected with the gate (25); A feeding trough (5) is fixedly connected to the outer side of the feeding opening (24), a receiving opening (61) is opened at the top wall of the sorting chamber (6), and the feeding trough (5) extends to the receiving opening (61) a sorting rotating shaft (62) is horizontally arranged in the left-right direction in the sorting chamber (6), and the sorting rotating shaft (62) is connected with a sorting motor (63); the front side of the sorting chamber (6) A garbage discharge port (64) is also opened on the wall; The pulverizing chamber (8) is located below the sorting chamber (6), and a No. 1 filter screen (7) is arranged between the pulverizing chamber (8) and the sorting chamber (6), and the No. 1 filter screen (7) is connected to pulverize A chamber (8) and a sorting chamber (6); a plurality of sets of crushing shafts are horizontally arranged in the front-rear direction in the crushing chamber (8), and one set of crushing shafts comprises two cogging crushing shafts (82), And baffle plates (81) are arranged on both sides of a group of pulverizing rotating shafts; the pulverizing rotating shaft (82) is connected with a pulverizing motor (83) at one end, and a gear (84) is fixedly connected at the other end; the pulverizing chamber (82) 8) A coarse material collection door (86) is arranged on the front side wall of the crushing chamber (8), a crushed material transfer pipe (11) is communicated with the right side wall of the crushing chamber (8), and a No. 2 filter is arranged in the crushed material transfer pipe (11). a net (12), the pulverizing chamber (8) communicates with the composting chamber (9) through the pulverizing material transfer pipe (11); The composting chamber (9) has a double-walled structure, and the double-walled structure forms a clamping cavity (91), and an electric heater (92) is arranged in the clamping cavity (91); and a stirring device is installed in the composting chamber (9). The shaft (94), the stirring shaft (94) is connected with a stirring motor (93), the composting chamber (9) is also connected with a metering pump (95) and a blower (96), and the metering pump (95) is used for adding composting. Aerobic microorganisms, a blower (96) is used to introduce oxygen. 2. The rural domestic waste treatment device according to claim 1, characterized in that: the feeding trough (5) is composed of a horizontal trough body (51) and an inclined trough body (52) which are welded into one, and the horizontal trough body ( 51) is fixedly connected with the extrusion chamber (2), and the inclined groove body (52) is located at the receiving opening (61). 3. The rural domestic waste treatment device according to claim 1, wherein the middle position of the No. 1 filter screen (7) is set as a blocking plate (71), and the two sides of the blocking plate (71) A filter screen plate (72) is symmetrically connected, and the pulverizing rotating shaft (82) is located below the filter screen plate (72). 4. The rural household garbage disposal device according to claim 1, characterized in that: the pulverizing rotating shaft (82) has a shaft body (821), the interior of the shaft body (821) is hollow, and the shaft body is also provided with a water spray A hole (824) is formed, and one end of the shaft body (821) connected to the gear (84) passes through the gear (84) and is communicated with a water receiving nozzle (85). 5. The rural domestic waste treatment device according to claim 4, wherein the shaft body (821) is fixedly surrounded with a crushing tooth plate (822), and the crushing tooth plate (822) is provided with a through groove (822). 823), the water spray hole (824) is located in the through groove (823). 6. The rural domestic waste treatment device according to claim 1, characterized in that: the composting chamber (9) is also connected with a liquid transfer pipe (10), and the liquid transfer pipe (10) is communicated with the liquid chamber (4) . 7 . The rural domestic waste treatment device according to claim 1 , wherein the extrusion chamber ( 2 ) and the liquid chamber ( 4 ) are jointly installed on the bracket ( 3 ). 8 . 8 . The rural domestic waste treatment device according to claim 3 , wherein the diameter of the drip hole ( 21 ) is not greater than 15 mm, and the sieve diameter of the filter screen plate ( 72 ) of the No. 1 filter screen ( 7 ). It is 50-80mm, and the mesh diameter of the No. 2 filter screen (12) is 15-30mm. 9. A working method of a rural domestic garbage disposal device according to any one of claims 1-8, wherein the working method is: preliminarily classifying all the garbage, and obtaining a living substance mainly based on organic matter. garbage, and then feed the domestic garbage from the feeding hopper (1) into the extrusion chamber (2). The extrusion plate (22) is driven to extrude the domestic garbage in the extrusion chamber (2), and the extruded liquid substance drips from the drip hole (21) into the liquid chamber (4); After the extrusion is completed, open the gate (25), start the pusher motor (28), and the pusher motor (28) pushes the extruded domestic garbage from the feed opening (24) into the feed chute (5) , the domestic garbage is fed into the sorting chamber (6) from the receiving opening (61) by the feeding chute (5); the sorting motor (63) is started, and the sorting shaft (63) is driven by the sorting motor (63). 62) Rotation, under the centrifugal force generated by the sorting shaft (62) and the shearing action of the sorting blades of the sorting shaft (62), the soft domestic waste is initially sheared into small particle size waste and thrown to the sorting. On the wall of the chamber (8), it finally enters the crushing chamber (8) through the No. 1 filter screen (7); the hard domestic waste with large particle size cannot be sheared and cannot pass through the No. (62) Under the action of the axial thrust generated by the rotation, it gradually moves to the right end and is finally discharged from the garbage discharge port (64); The soft garbage entering the pulverizing chamber (8) is an organic substance, and falls to the pulverizing shaft (82) under the blocking action of the baffle plate (81), and the pulverizing shaft (82) fully pulverizes the soft garbage and pulverizes it. After completion, the No. 2 filter screen (12) will first screen out qualified soft garbage with particle size that meets the requirements of composting. The coarse material waste required for composting is collected at the coarse material collection door (86) and sent into the feeding hopper (1) again; The qualified soft garbage entering the composting room (9) becomes fertilizer that can be used for crop planting after aerobic composting.

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