CN212976281U - Garbage pretreatment system - Google Patents

Abstract

The application relates to a garbage pretreatment system, which belongs to the technical field of garbage treatment and comprises a case, and a feeding device, a sorting device and a crushing device which are sequentially arranged on the case, wherein the case is also provided with a squeezing and dewatering device which is positioned at the downstream of the crushing device; squeeze dewatering device and include casing and auger, inside feed chamber, squeeze chamber and the play discharge chamber of having set gradually of casing, the auger is worn to locate in feed chamber, squeeze chamber and the ejection of compact room, the both ends of auger rotate with casing length direction's both ends and are connected, the one side of squeeze chamber orientation play discharge chamber is provided with the export, the exit is provided with shutoff mechanism. This application has the more complete effect that makes solid waste ferment.

Description

Garbage pretreatment system

Technical Field

The application relates to the field of garbage treatment technology, in particular to a garbage pretreatment system.

Background

The kitchen waste is one of the common municipal solid waste, and the kitchen waste contains extremely high moisture and organic matters, is easy to rot and generates stink. Therefore, each city is generally provided with a city domestic garbage treatment system for carrying out environment-friendly treatment on the city domestic garbage, converting the kitchen garbage into new resources, and the characteristics of high organic matter content ensure that the kitchen garbage can be used as fertilizer and feed after being strictly treated, and can also produce biogas for fuel or power generation, and the grease part can be used for preparing biofuel.

In the related art, the kitchen waste treatment generally comprises a waste pretreatment system and a fermentation system, wherein the waste pretreatment system comprises feeding, sorting and crushing, plastic products in the kitchen waste are sorted, then the kitchen waste is subjected to fragment crushing, the crushed waste is conveyed into a fermentation bin, a strain is added into the fermentation bin, the kitchen waste is fermented, and organic nutrient soil is generated and discharged.

Aiming at the related technologies, the inventor thinks that when the strain and the kitchen waste are fermented in the fermentation bin, the strain and the kitchen waste are not completely fermented, so that the kitchen waste treatment efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the kitchen waste treatment efficiency is low due to incomplete fermentation between strains and the kitchen waste, the application provides a waste pretreatment system.

The application provides a rubbish pretreatment systems adopts following technical scheme:

a garbage pretreatment system comprises a case, and a feeding device, a sorting device and a crushing device which are sequentially arranged on the case, wherein the case is also provided with a squeezing and dewatering device which is positioned at the downstream of the crushing device;

squeeze dewatering device and include casing and auger, inside feed chamber, squeeze chamber and the play discharge chamber of having set gradually of casing, the auger is worn to locate in feed chamber, squeeze chamber and the ejection of compact room, the both ends of auger rotate with casing length direction's both ends and are connected, the one side of squeeze chamber orientation play discharge chamber is provided with the export, the exit is provided with shutoff mechanism.

Through adopting above-mentioned technical scheme, empty the inside rubbish of garbage bin to sorting device through feed arrangement on, classify the inside rubbish of garbage bin through the manual work. Inorganic rubbish such as plastics in the rubbish is sorted out, carries organic rubbish such as kitchen cabinet to breaker inside and carries out the breakage, because follow-up rubbish still need ferment, therefore after the rubbish breakage, ferment more easily completely. The crushed garbage is conveyed into the interior of a feeding chamber of the squeezing dehydration device, when the auger works, the garbage in the feeding chamber can be conveyed into the squeezing chamber, and the garbage is subjected to solid-liquid separation through the squeezing chamber. The auger is when rotating, and rubbish is continuously carried, but because block structure's setting, rubbish can't enter into the discharging chamber from the press chamber, and rubbish is in the continuous in-process of piling up, and continuous the receiving is extruded to can extrude the inside liquid of rubbish. When the extrusion reaches a set value, the plugging mechanism is disconnected with the outlet of the squeezing chamber, and the auger can convey solid garbage into the discharging chamber. The dewatered solid garbage is conveyed to a fermentation bin for fermentation, and when the garbage and the strains are fermented, the strains are not easily diluted by liquid, so that the solid garbage is more completely fermented.

Preferably, be provided with the closing plate in the feed chamber, the closing plate is located breaker under, the one side that breaker was kept away from to the closing plate sets up to the arc, the closing plate is crooked towards breaker's direction, the closing plate cover is located on the auger.

Through adopting above-mentioned technical scheme, can be convenient for carry the rubbish after the breakage to squeeze indoorly, the auger can drive rubbish and form an annular when the pivoted, sets up the bottom of closing plate into the arc, can be with the quick conveying of rubbish to squeeze indoorly.

Preferably, a grating net is arranged in the squeezing chamber, the packing auger is sleeved with the grating net, the grating net is erected in the shell, a water outlet pipe is fixed at the bottom of the shell, and the bottom of the squeezing chamber is communicated with a water outlet pipe.

By adopting the technical scheme, when the garbage is dehydrated in the squeezing chamber through the auger to separate solid from liquid in the garbage, the liquid in the garbage can be discharged through the grid net and then enters the water outlet pipe, and the liquid is discharged through the water outlet pipe.

Preferably, a chain plate conveying belt is arranged on the case and extends into the bottom of the discharge chamber, the chain plate conveying belt is fixed on the case, and a water collecting tank is arranged at the bottom of the chain plate conveying belt and connected with a water collecting tank.

Through adopting above-mentioned technical scheme, when rubbish carried to fermentation storehouse inside through the link joint conveyer belt, liquid in the solid waste can drip to the water catch bowl in, and liquid collects through the water catch bowl and gets into in the header tank.

Preferably, the auger comprises a central shaft and blades spirally fixed on the central shaft, the central shaft penetrates through the feeding chamber, the squeezing chamber and the discharging chamber, two ends of the central shaft are rotatably connected with two ends of the shell in the length direction, and the blades penetrate through the feeding chamber and the squeezing chamber;

the plugging mechanism comprises a piston and a driving assembly, the piston is movably sleeved on the central shaft, the piston is abutted against the side wall of the outlet of the squeezing chamber facing the discharging chamber, and the driving assembly is fixed on the shell.

Through adopting above-mentioned technical scheme, start drive assembly, drive assembly drives the center pin and rotates, and when the center pin rotated, can drive the blade and rotate, when the blade rotated, can the propelling movement rubbish get into from the feed chamber and squeeze indoorly, then get into the discharging chamber through squeezing the chamber. When solid-liquid separation is carried out on the garbage, the piston is plugged at an outlet of the squeezing chamber, which is far away from the feeding chamber, and then the garbage is squeezed through the auger and the grid net, so that the solid-liquid separation is realized. After solid-liquid separation of the garbage is finished, the piston and the squeezing chamber are disconnected, and then the solid garbage in the squeezing chamber can be discharged.

Preferably, the piston sets up to the frustum shape towards the one end of auger, the piston stretches into inside the grid net towards the one end of auger to with the lateral wall laminating setting of the export of squeezing the room.

Through adopting above-mentioned technical scheme, set up the piston into the frustum shape towards the one end of auger, can carry out the shutoff through the effectual room that will squeeze of piston, make rubbish be difficult to extrude from the room inside squeezing.

Preferably, the driving assembly comprises an air cylinder and a push rod, a supporting plate is arranged on the shell, the air cylinder is hinged to the supporting plate, the push rod is rotatably connected with the supporting plate, a connecting groove is formed in the piston, one end of the push rod is rotatably connected with the end portion of a telescopic rod of the air cylinder, and the other end of the push rod is inserted into the connecting groove.

Through adopting above-mentioned technical scheme, start the cylinder, the telescopic link extension of cylinder drives the push rod and rotates round the junction of push rod and backup pad, and the one end extension of push rod towards the cylinder, and the other end of push rod rotates towards the direction of squeezing the room, can be with the piston towards the length propelling movement of squeezing the room. When the telescopic rod of the cylinder moves in the opposite direction, the push rod can disconnect the piston from the squeezing chamber.

Preferably, one end of the push rod, which is far away from the cylinder, is rotatably provided with a roller, and the roller is in rolling connection with the side wall of the connecting groove.

Through adopting above-mentioned technical scheme, the friction between push rod and the piston can be reduced in the setting of gyro wheel to the push rod drive piston motion of can being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the arrangement of the over-squeezing dehydration device can dehydrate the garbage, the dehydrated solid garbage is conveyed into the fermentation bin to be fermented, when the garbage and the strain are fermented, the strain is not easily diluted by liquid, and the effect of more completely fermenting the solid garbage is achieved;

2. the effect of collecting the waste water in the garbage can be achieved through the arrangement of the water collecting tank and the water collecting tank;

3. through the setting of gyro wheel and spread groove, can play and reduce the friction between push rod and the piston to the effect of push rod drive piston motion can be convenient for.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a garbage pretreatment system in an embodiment of the present application;

FIG. 2 is a schematic diagram of the internal structure of the garbage pretreatment system in the embodiment of the present application;

FIG. 3 is a partially enlarged schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of a feeding device in an embodiment of the present application;

FIG. 5 is a partially enlarged schematic view of a portion B of FIG. 3;

FIG. 6 is a schematic structural diagram of a sorting device in an embodiment of the present application;

FIG. 7 is a partially enlarged schematic view of a portion C of FIG. 6;

fig. 8 is a schematic structural view of a crushing apparatus in an embodiment of the present application;

FIG. 9 is a schematic view showing the structure of a press dewatering device in the embodiment of the present application;

fig. 10 is a partially enlarged structural view of a portion D in fig. 9.

Description of reference numerals:

1. a chassis;

2. a feeding device; 21. a feeding lifting mechanism; 211. a support frame; 212. a first slide rail; 213. a lifting assembly; 2131. a hoisting frame; 2132. a second slide rail; 2133. a garbage can fixing frame; 2134. a first rolling wheel; 2135. a second rolling wheel; 2136. a clamping plate; 2137. a slider; 2138. a third rolling wheel; 22. lifting the driving member; 221. an oil cylinder; 222. a sprocket shaft; 2221. a drive chain; 223. a sprocket; 224. a first fixing plate; 225. a first fixed seat; 226. a second fixing plate; 227. a second fixed seat; 228. a clamping block; 229. a card slot;

3. a sorting device; 31. a sorting table; 32. a conveyor belt; 33. water filtering holes; 34. a water collecting tank; 35. a drain pipe; 36. pouring a hopper; 37. a squeegee;

4. a crushing device; 41. a crushing box; 42. a crushing shaft; 421. a drive motor; 43. crushing the blade;

5. a press dewatering device; 51. a housing; 511. a feed chamber; 5111. a sealing plate; 512. a pressing chamber; 5121. a grid net; 513. a discharge chamber; 52. a packing auger; 521. a central shaft; 522. a blade; 53. a partition plate; 54. a plugging mechanism; 541. a piston; 542. a drive assembly; 5421. a cylinder; 5422. a push rod; 5423. a support plate; 5424. a roller; 5425. connecting grooves; 55. a water outlet pipe;

6. a chain plate conveyor belt; 61. a water collection tank; 62. a water collection tank;

7. and (7) a fermentation bin.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses a garbage pretreatment system.

Referring to fig. 1 and 2, a garbage pretreatment system comprises a machine case 1, and a feeding device 2, a sorting device 3, a crushing device 4 and a squeezing and dewatering device 5 which are sequentially arranged on the machine case 1. The feeding device 2 is arranged on the side wall of one end, away from the squeezing and dewatering device 5, of the machine case 1, and the sorting device 3 is arranged at the position, close to the feeding device 2, of the top of the machine case 1. The crushing device 4 is arranged at the top of the case 1 and is positioned at a position of the sorting device 3 far away from the feeding device 2. The press dewatering device 5 is arranged inside the machine case 1 and is positioned at the bottom of the crushing device 4.

Referring to fig. 3, the feeding device 2 includes a feeding lift mechanism 21 and a lift driving member 22. The feeding lifting mechanism 21 comprises a support frame 211, a first slide rail 212 and a lifting assembly 213, the support frame 211 is vertically fixed at the end of the case 1, the first slide rail 212 is arranged along the height direction of the support frame 211, the two ends of the first slide rail 212 are fixed on the support frame 211, one end, away from the ground, of the first slide rail 212 is bent towards the sorting device 3 to form a circular arc shape, and the other end, away from the ground, of the first slide rail is bent towards the support frame 211.

Referring to fig. 3 and 4, the lifting assembly 213 includes a lifting frame 2131, a second slide rail 2132 and a trash can fixing frame 2133. The lifting frame 2131 is slidably disposed on the first slide rail 212, that is, the first rolling wheels 2134 are rotatably disposed on two side walls of the lifting frame 2131, and the first rolling wheels 2134 are in rolling connection with the first slide rail 212. The end parts of the two side walls of the lifting frame 2131, which are far away from the first rolling wheels 2134, are provided with second rolling wheels 2135, and the second rolling wheels 2135 are in rolling connection with the supporting frame 211. A clamping plate 2136 for clamping the garbage can is fixedly arranged on one surface, far away from the supporting frame 211, of the lifting frame 2131, and the position of the garbage can be positioned through the clamping plate 2136. The second sliding rails 2132 are arranged along the height direction of the lifting frame 2131, the garbage can fixing frame 2133 is arranged on the second sliding rails 2132 in a sliding manner, namely, sliding blocks 2137 are fixedly arranged on two side walls of the garbage can fixing frame 2133, the sliding blocks 2137 are connected with the second sliding rails 2132 in a sliding manner, third rolling wheels 2138 are arranged on the side walls of the garbage can fixing frame 2133, which are far away from the sliding blocks 2137, and the third rolling wheels 2138 are connected with the first sliding rails 212 in a rolling manner.

Referring to fig. 4 and 5, the lifting driving member 22 includes an oil cylinder 221, the oil cylinder 221 is vertically disposed at the bottom of the supporting frame 211, the oil cylinder 221 is hinged to the bottom of the supporting frame 211, a chain wheel shaft 222 is fixedly disposed at an end of an expansion rod of the oil cylinder 221, chain wheels 223 are rotatably disposed at two ends of the chain wheel shaft 222, a first fixing plate 224 is disposed at a position of the supporting frame 211 close to the chain wheel shaft 222, two first fixing seats 225 are disposed on the first fixing plate 224, and the two first fixing seats 225 and the two chain wheels 223 are disposed in a one-to-one. A second fixing plate 226 is disposed at the bottom of the trash can fixing frame 2133, two second fixing seats 227 are fixedly disposed on the second fixing plate 226, each sprocket shaft 222 is engaged with one transmission chain 2221, one end of the transmission chain 2221 is fixed to the first fixing seat 225, and the other end of the transmission chain 2221 is fixed to the second fixing seat 227. The top of the trash can fixing frame 2133 is provided with a plurality of clamping blocks 228, and a clamping groove 229 of the solid trash can is formed between every two adjacent clamping blocks 228.

Referring to fig. 6 and 7, the sorting apparatus 3 includes a dumping hopper 36, a sorting table 31, a conveyor belt 32, and a water collecting tank 34, the dumping hopper 36 is fixed to the casing 1, the side wall of the dumping hopper 36 is in a frustum shape, and the side wall of the dumping hopper 36 is in a tapered trend toward the ground. The sorting table 31 is fixed at a position where the material pouring hopper 36 is close to the support frame 211, and a scraper 37 is fixedly connected to one side of the sorting table 31 far away from the support frame 211. The conveyor belt 32 is disposed at the bottom of the hopper 36, one end of the conveyor belt 32 close to the support frame 211 is located at the bottom of the sorting table 31, and the scraper 37 abuts against the upper surface of the conveyor belt 32. In this embodiment, the conveyer belt 32 is the link joint formula conveyer belt, has all seted up a plurality of drainage holes 33 on the link joint of letter sorting platform 31 and conveyer belt 32, and catch basin 34 is fixed in the bottom of pouring hopper 36 to catch basin 34 is located the conveyer belt under, so that collect grease and water in the rubbish of falling on letter sorting platform 31 and conveyer belt 32. The bottom of the sump 34 is connected to a drain pipe 35 for draining grease and water out of the sump 34. Promote the garbage bin through material loading hoist mechanism 21, dump inside rubbish to pouring in hopper 36, the staff places inorganic matter such as plastics in with rubbish letter sorting on letter sorting platform 31, then dumps remaining organic matter on conveyer belt 32, because contain a large amount of grease and water in the kitchen garbage, grease and water will descend to the catch basin 34 in through drainage hole 33, and the inside grease of catch basin 34 and water are collected through drain pipe 35 discharges.

Referring to fig. 8, the crushing device 4 includes a crushing box 41, a crushing shaft 42 and a plurality of crushing blades 43, the crushing box 41 is fixed on the case 1, the crushing box 41 is located under one end of the conveyor belt 32 far away from the sorting table 31, the crushing shaft 42 is arranged in parallel to be a plurality of, each crushing shaft 42 is rotatably arranged on a side wall of the crushing box 41, and the crushing blades 43 are fixed on the crushing shaft 42. Every two adjacent crushing blades 43 on every two adjacent crushing shafts 42 are arranged crosswise. A driving motor 421 is fixed on the outer wall of the crushing box 41, the output shaft of the driving motor 421 is connected with the crushing shafts 42, and chain transmission is performed between every two adjacent crushing shafts 42.

Referring to fig. 9, the press dehydration apparatus 5 includes a housing 51 and an auger 52, the auger 52 is rotatably disposed inside the housing 51, and the auger 52 is disposed along a length direction of the housing 51. The auger 52 includes a central shaft 521 and blades 522 that are helically fixed to the central shaft 521. A plurality of partition plates 53 are fixedly provided in the longitudinal direction of the housing 51, and in the present embodiment, four partition plates 53 are provided. The inner part of the shell 51 is sequentially divided into a feeding chamber 511, a squeezing chamber 512 and a discharging chamber 513 by a plurality of partition plates 53, and the packing auger 52 simultaneously penetrates through the feeding chamber 511, the squeezing chamber 512 and the discharging chamber 513. The feeding chamber 511 is located right below the crushing box 41, a U-shaped sealing plate 5111 is arranged in the feeding chamber 511, the sealing plate 5111 is fixed on the shell 51, and one surface of the sealing plate 5111, which is far away from the crushing device 4, is provided with an arc shape. A grating net 5121 is arranged in the squeezing chamber 512, the grating net 5121 is fixed on the shell 51, the grating net 5121 is annular, the grating net 5121 is sleeved on the packing auger 52, and a water outlet pipe 55 is arranged at the bottom of the squeezing chamber 512.

Referring to fig. 10, a plugging mechanism 54 for plugging an outlet of the pressing chamber 512 is disposed in the discharging chamber 513, the plugging mechanism 54 includes a piston 541 and a driving assembly 542, the piston 541 is movably sleeved on the central shaft 521, one end of the piston 541 facing the auger 52 is set to be frustum-shaped, one end of the piston 541 facing the hinge hole extends into the grid mesh 5121 and abuts against an outlet side wall of the pressing chamber 512 facing the discharging chamber 513, and the driving assembly 542 is fixed on the housing 51. The driving assembly 542 comprises a cylinder 5421 and a push rod 5422, a supporting plate 5423 is arranged on the shell 51, the cylinder 5421 is hinged to the supporting plate 5423, the push rod 5422 is rotatably connected with the supporting plate 5423, one end of the push rod 5422 is rotatably connected with the end portion of a telescopic rod of the cylinder 5421, the other end of the push rod 5422 is rotatably provided with a roller 5424, a connecting groove 5425 is formed in the piston 541, and the roller 5424 is in rolling connection with a side wall of the connecting groove 5425. The bottom of ejection of compact room 513 is provided with link joint conveyer belt 6, and link joint conveyer belt 6 is fixed in on quick-witted case 1, and the bottom of link joint conveyer belt 6 is provided with water catch bowl 61, and water catch bowl 61 is connected with header tank 62. After the crushed garbage enters the feeding chamber 511, the auger 52 rotates, the garbage enters the squeezing chamber 512, the piston 541 seals the squeezing chamber 512, the garbage is subjected to solid-liquid separation through the auger 52 and the grid net 5121 in the squeezing chamber 512, the solid is retained in the grid net 5121, and the liquid is discharged from the water outlet pipe 55 and collected.

The implementation principle of the garbage pretreatment system in the embodiment of the application is as follows: the garbage can is placed on the garbage can fixing frame 2133, the oil cylinder 221 is started, the telescopic rod of the oil cylinder 221 extends to drive the chain wheel shaft 222 to ascend, when the chain wheel shaft 222 ascends, the end portion of the transmission chain 2221 is fixed, so that the chain wheel 223 on the chain wheel shaft 222 rotates to drive the transmission chain 2221 to move close to one end of the garbage can, and the garbage can fixing frame 2133 can be pulled to ascend through the transmission chain 2221. When the telescopic rod of the oil cylinder 221 continuously rises, the garbage can fixing frame 2133 pushes the lifting frame 2131 to continuously rise, finally, the first rolling wheel 2134 rolls to the end part of the first sliding rail 212, and the garbage can pours the garbage in the garbage can into the dumping hopper 36 along with the bending of the first sliding rail 212. The staff places inorganic matters such as plastics in the rubbish on letter sorting platform 31 with the letter sorting, then emptys remaining organic matter on conveyer belt 32, because contain a large amount of grease and water in the kitchen garbage, grease and water will descend to the catch basin 34 in through drainage hole 33, and the inside grease and the water of catch basin 34 are discharged through drain pipe 35 and are collected. The garbage is conveyed to the inside of the crushing box 41 through the conveyor belt 32, the driving motor 421 is started, the output shaft of the driving motor 421 rotates to drive the crushing shaft 42 to rotate, and the crushing shaft 42 drives the crushing blade 43 to rotate when rotating to crush the garbage entering the inside of the crushing box 41. After the crushed garbage enters the feeding chamber 511, the auger 52 rotates, the garbage enters the squeezing chamber 512, the piston 541 seals the squeezing chamber 512, the garbage is subjected to solid-liquid separation through the auger 52 and the grid net 5121 in the squeezing chamber 512, the solid is retained in the grid net 5121, the liquid is discharged from the water outlet pipe 55 for collection, after the piston 541 and the grid net 5121 are disconnected, the auger 52 conveys the solid garbage into the discharging chamber 513, then the solid garbage falls onto the chain plate conveying belt 6, and finally the solid garbage is conveyed into the fermentation bin.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a rubbish pretreatment systems, includes quick-witted case (1) and set gradually feed arrangement (2), sorting device (3) and breaker (4) on quick-witted case (1), its characterized in that: the machine box (1) is also provided with a squeezing and dewatering device (5), and the squeezing and dewatering device (5) is positioned at the downstream of the crushing device (4);

squeeze dewatering device (5) including casing (51) and auger (52), casing (51) inside communicates with each other in proper order and is provided with feed space (511), squeezes room (512) and goes out discharge chamber (513), auger (52) are worn to locate in feed space (511), squeeze room (512) and discharge chamber (513), the both ends of auger (52) are rotated with casing (51) length direction's both ends and are connected, squeeze room (512) and be provided with the export towards the one side of discharge chamber (513), the exit is provided with shutoff mechanism (54).

2. A waste pretreatment system according to claim 1, wherein: be provided with closing plate (5111) in feed chamber (511), closing plate (5111) are located breaker (4) under, the one side that breaker (4) were kept away from in closing plate (5111) sets up to the arc, closing plate (5111) are crooked towards the direction of breaker (4), packing auger (52) are located to closing plate (5111) cover.

3. A waste pretreatment system according to claim 1, wherein: squeeze and be provided with grid net (5121) in room (512), grid net (5121) cover is located on auger (52), grid net (5121) erect in casing (51), the bottom of casing (51) is fixed with outlet pipe (55), the bottom of squeezing room (512) communicates with each other and is provided with outlet pipe (55).

4. A waste pretreatment system according to claim 1, wherein: the improved automatic material discharging machine is characterized in that a chain plate conveying belt (6) is arranged on the machine case (1), the chain plate conveying belt (6) extends into the bottom of the material discharging chamber (513), the chain plate conveying belt (6) is fixed on the machine case (1), a water collecting tank (61) is arranged at the bottom of the chain plate conveying belt (6), and the water collecting tank (61) is connected with a water collecting tank (62).

5. A waste pretreatment system according to claim 3, wherein: the packing auger (52) comprises a central shaft (521) and blades (522) spirally fixed on the central shaft (521), the central shaft (521) penetrates through the feeding chamber (511), the squeezing chamber (512) and the discharging chamber (513), two ends of the central shaft (521) are rotatably connected with two ends of the shell (51) in the length direction, and the blades (522) penetrate through the feeding chamber (511) and the squeezing chamber (512);

the plugging mechanism (54) comprises a piston (541) and a driving assembly (542), the piston (541) is movably sleeved on the central shaft (521), the piston (541) is abutted against the inner side wall of one end, facing the discharging chamber (513), of the pressing chamber (512), and the driving assembly (542) is arranged at the top of the discharging chamber (513) and used for controlling the piston (541) to slide along the axial direction of the central shaft (521) of the packing auger (52).

6. A waste pre-treatment system according to claim 5, wherein: piston (541) sets up to the frustum shape towards the one end of auger (52), inside piston (541) stretched into grid net (5121) towards the one end of auger (52) to with the lateral wall laminating setting of the export of squeezing chamber (512).

7. A waste pre-treatment system according to claim 5, wherein: drive assembly (542) include cylinder (5421) and push rod (5422), be provided with backup pad (5423) on casing (51), cylinder (5421) articulate on backup pad (5423), push rod (5422) are rotated with backup pad (5423) and are connected, spread groove (5425) have been seted up on piston (541), the one end of push rod (5422) is rotated with the tip of the telescopic link of cylinder (5421) and is connected, the other end of push rod (5422) is inserted and is located in spread groove (5425).

8. A waste pretreatment system according to claim 7, wherein: and one end of the push rod (5422), which is far away from the air cylinder (5421), is rotatably provided with a roller (5424), and the roller (5424) is in rolling connection with the side wall of the connecting groove (5425).

Images