Solid waste treatment device

Abstract

The invention relates to a solid waste treatment device applied to the field of solid waste treatment, the inner wall and the outer wall of a screen drum are synchronously scraped and cleaned through an inner spiral blade and an outer spiral blade which are oppositely arranged in the same direction, the residual and accumulation caking phenomena of kitchen garbage on the inner wall and the outer wall of the screen drum are reduced, and the probability that screen holes are blocked is reduced; meanwhile, through a water injection groove and a water drainage groove in the opposite side walls of the inner spiral blade and the outer spiral blade, screen holes evenly distributed in the whole screen drum are periodically sealed and flushed, inner cavities of the screen holes are flushed, and the cleaning effect on the screen drum is further improved; in addition, through a deslagging cavity formed in the right end cylinder and a deslagging pipe communicated with the deslagging cavity, the flushing waste liquid is intensively discharged into the waste liquid cylinder, and the probability that the flushing waste liquid is secondarily attached to the outer wall of the screen cylinder is reduced; in addition, autorotation of the screen drum is achieved through the transmission assembly, the centrifugal dewatering pressure is improved, and the screening hole blocking probability is further reduced.

Description

Technical Field

[0001] This invention relates to a solid waste treatment device, and more particularly to a solid waste treatment device applied in the field of solid waste treatment. Background Technology

[0002] As a typical high-moisture solid waste, food waste needs to be dehydrated to reduce its moisture content during resource recovery, so that subsequent drying processes can reduce the volume of waste residue. When traditional processing devices use centrifugal screens for solid-liquid separation, the large amount of animal and vegetable oils, fibrous residues, and fine particles mixed in with the food waste can easily adhere to the screen surface during high-speed rotation, forming a dense blockage layer.

[0003] The existing patent with publication number CN105312304B discloses a kitchen waste treatment device. This kitchen waste treatment device constructs a sealed treatment space through a cover. It uses the centrifugal rotation of the cylindrical dehydration section to generate centrifugal force to achieve solid-liquid separation. In conjunction with the synchronous or independent rotation of the stirring section, the waste is crushed and stirred, and the connecting holes are dynamically opened and closed to prevent clogging and improve dehydration efficiency. At the same time, the drying section continuously supplies hot and dry air into the cover to achieve deep drying of the waste. Ultimately, it achieves the comprehensive effect of reducing volume, rendering harmless, and recycling kitchen waste.

[0004] The aforementioned prior art discloses centrifugal dehydration and blower drying methods for kitchen waste, but it does not solve the problem of easy clogging of the screen cylinder during centrifugal dehydration. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that solid kitchen waste is prone to clogging the screen cylinder during dehydration.

[0006] To address the aforementioned problems, this invention provides a solid waste treatment device, comprising a dewatering cylinder, a screen cylinder rotatably connected inside the dewatering cylinder, a left end cylinder rotatably connected to the left end of the screen cylinder, the left end cylinder penetrating the left side wall of the dewatering cylinder and rotatably connected to the dewatering cylinder, a right end cylinder rotatably sleeved on the portion of the screen cylinder near its right end, an outer spiral blade fixedly connected between the left end cylinder and the right end cylinder, the inner wall of the outer spiral blade slidingly abutting against the outer wall of the screen cylinder; a central shaft is provided inside the screen cylinder, an inner spiral blade fixedly connected to the outer wall of the central shaft abutting against the inner wall of the screen cylinder, the inner spiral blade and the outer spiral blade being arranged opposite each other in the same direction, the central shaft being fixedly connected to the inner wall of the left end cylinder through a grid frame, the central shaft extending to the outer side of the left end cylinder and connected to a drive motor via a transmission belt; Water injection grooves and drainage grooves are respectively opened on the opposite side walls of the inner and outer spiral blades. The screen cylinder is opened with evenly distributed screen holes. The inner spiral blade is opened with a blade channel that communicates with the water injection groove. The central shaft is opened with an inner shaft channel that communicates with the blade channel. The central shaft extends to the outside of the left end cylinder and is rotatably connected to a rotary joint. The rotary joint is connected to the inner shaft channel and to the external water supply mechanism. The right end of the cylinder has a slag discharge chamber that communicates with the drainage trough. A rotating ring is rotatably connected inside the slag discharge chamber. A slag discharge pipe that communicates with the slag discharge chamber is fixedly connected to the outer wall of the rotating ring. A waste liquid cylinder is fixedly connected to the lower end of the dewatering cylinder. The slag discharge pipe is fixedly connected to the waste liquid cylinder.

[0007] In the aforementioned solid waste treatment device, inner and outer spiral blades arranged opposite to and in the same direction inside and outside the screen cylinder are used to simultaneously scrape and clean the inner and outer walls of the screen cylinder on both sides of the screen holes, and clean water is used to seal and rinse the screen holes.

[0008] As a further improvement of this application, an external toothed ring is fixedly connected to the right side of the right end cylinder, and a transmission gear is meshed on the inner side of the external toothed ring. The transmission gear is rotatably connected to the inner wall of the dewatering cylinder through a mounting shaft. An internal toothed ring is meshed on the inner side of the transmission gear, and the internal toothed ring is fixedly sleeved with the screen cylinder.

[0009] As a further improvement of this application, a drying cylinder that communicates with the screen cylinder is fixedly connected to the right end of the dewatering cylinder, a feeding pipe is fixedly connected to the right end of the drying cylinder, a waste residue box is provided below the feeding pipe, a spiral conveying roller that is fixedly connected to the right end of the central shaft is provided inside the drying cylinder, and a heating device is fixedly connected inside the spiral conveying roller.

[0010] As a further improvement of this application, a ventilator is fixedly connected inside the drying cylinder, and an annular gap is formed between the ventilator and the inner wall of the drying cylinder. An exhaust pipe communicating with the annular gap is fixedly connected to the outer wall of the drying cylinder. A suction cylinder is fixedly connected to the end of the suction pipe, and an exhaust pipe is fixedly connected to the upper end of the suction cylinder. The exhaust pipe extends into the waste liquid cylinder, and the lower outlet of the exhaust pipe is located below the surface of the waste liquid.

[0011] As a further improvement of this application, a left end plate is rotatably connected to the left end of the left end cylinder, and a feed pipe is fixedly connected to the left end plate. A feeding hopper is fixedly connected to the upper end of the feed pipe. The feeding hopper is fixedly connected to the outer wall of the dewatering cylinder through a support plate. A crushing roller is rotatably connected to the feeding hopper, and a rotating motor that drives the crushing roller to rotate is connected to the end of the crushing roller.

[0012] As a further improvement of this application, the cross-sections of the inner and outer spiral blades in contact with the screen cylinder are both isosceles trapezoids, and the cross-sections of the water injection trough and the drainage trough are both isosceles trapezoids. The opening widths of the two are equal and both are larger than the diameter of the screen holes.

[0013] As a further improvement of this application, the slag discharge chamber includes an annular cavity and an annular groove arranged concentrically on the right end shell wall. The annular cavity and the annular groove are connected by a plurality of radial holes distributed in a circle. The annular cavity is connected to the drainage groove through a transverse hole opened on the right end shell side wall. The rotating ring is rotatably nested in the annular groove.

[0014] As a further improvement of this application, an isolation plate is rotatably connected to the outer side of the right end cylinder and fixedly connected to the inner wall of the dewatering cylinder. The isolation plate is located on the left side of the right end cylinder. The screen holes evenly distributed on the screen cylinder are located between the left end cylinder and the right end cylinder. A connecting rod is fixedly connected between the left end cylinder and the right end cylinder. The connecting rod passes through the outer spiral blade and is fixedly connected to the outer spiral blade.

[0015] As a further improvement of this application, a one-way valve is fixedly connected to the connection between the suction pipe and the exhaust pipe and the suction cylinder. A piston disc is slidably connected inside the suction cylinder. A snap-fit ​​frame extending to the bottom of the suction cylinder is fixedly connected to the piston disc. An eccentric grooved disc is snapped into the snap-fit ​​frame. An extension shaft is fixedly connected to the eccentric grooved disc. The extension shaft extends into the discharge pipe and is fixedly connected to the end of the screw conveyor roller.

[0016] In summary, this invention utilizes inner and outer spiral blades arranged in the same direction, driven synchronously by the left end cylinder and grid frame to scrape and clean the inner and outer walls of the screen cylinder simultaneously. This reduces the residue and accumulation of kitchen waste on the inner and outer walls of the screen cylinder, lowering the probability of kitchen waste clogging the screen holes. Simultaneously, water inlets and outlets on the opposite sidewalls of the inner and outer spiral blades, working in conjunction with their rotation, provide a closed flushing of the evenly distributed screen holes throughout the screen cylinder. This flushes away kitchen waste fragments remaining in the screen holes after being cut off by the inner and outer spiral blades, further improving the cleaning effect of the screen cylinder. Furthermore, a slag discharge chamber located in the right end cylinder and a slag discharge pipe connected to it centrally discharges the rinsing waste liquid into a waste liquid cylinder, improving the rinsing effect while reducing the probability of secondary adhesion of the rinsing waste liquid to the outer wall of the screen cylinder. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present application; Figure 2 This is a schematic diagram of the internal structure of the dehydration cylinder in this application; Figure 3 This is a schematic diagram of the transverse cross-sectional structure of this application; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the exploded assembly structure of the dehydration cylinder in this application; Figure 6 for Figure 3 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram showing the rotational state of the sieve cylinder and the inner and outer spiral blades in this application; Figure 8 This is a schematic diagram of the movement structure of waste liquid and waste residue during the dehydration operation in this application; Figure 9 This is a schematic diagram of the water flow during sieve flushing in this application; Figure 10 for Figure 3 Enlarged structural diagram at point C; Figure 11 This is a schematic diagram of the exploded assembly structure of the sieve cylinder and the outer helical blades in this application; Figure 12 for Figure 3 Enlarged structural diagram at point D; Figure 13 This is a schematic diagram of the flow of water vapor during drying in this application.

[0018] Explanation of the labels in the diagram: 1. Feeding hopper; 2. Dewatering cylinder; 3. Drying cylinder; 4. Feeding pipe; 5. Waste residue bin; 6. Waste liquid cylinder; 7. Screen cylinder; 701. Screen hole; 8. Left end cylinder; 9. Right end cylinder; 901. Annular cavity; 902. Annular groove; 903. Radial hole; 904. Transverse hole; 10. End plate; 11. Feed pipe; 12. Inner spiral blade; 1201. Water injection tank; 1202. Blade channel; 13. Central shaft; 1301. Shaft inner channel; 14. Outer spiral blade; 1401. Drainage tank; 5. Grille frame; 16. Rotary joint; 17. Drive belt; 18. Drive motor; 19. Connecting rod; 20. Crushing roller; 21. Rotating ring; 22. Slag discharge pipe; 23. External gear ring; 24. Drive gear; 25. Mounting shaft; 26. Internal gear ring; 27. Screw conveyor roller; 2701. Heating device; 28. Ventilation cylinder; 29. ​​Suction pipe; 30. Suction cylinder; 31. Exhaust pipe; 32. Piston disc; 33. Snap-fit ​​frame; 34. Eccentric grooved disc; 35. Extension shaft; 36. Isolation plate. Detailed Implementation

[0019] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0020] Implementation method 1: Figures 1-9A solid waste treatment device is shown, including a dewatering cylinder 2, a screen cylinder 7 rotatably connected inside the dewatering cylinder 2, a left end cylinder 8 rotatably connected to the left end of the screen cylinder 7, the left end cylinder 8 penetrating the left side wall of the dewatering cylinder 2 and rotatably connected to the dewatering cylinder 2, a right end cylinder 9 rotatably sleeved on the part of the screen cylinder 7 near the right end, an outer spiral blade 14 fixedly connected between the left end cylinder 8 and the right end cylinder 9, the inner wall of the outer spiral blade 14 slidingly abutting against the outer wall of the screen cylinder 7; Please see Figure 4 and Figure 7 The screen cylinder 7 is equipped with a central shaft 13. An inner spiral blade 12 is fixedly connected to the outer wall of the central shaft 13 and abuts against the inner wall of the screen cylinder 7. The inner spiral blade 12 and the outer spiral blade 14 are arranged in the same direction and opposite to each other. The central shaft 13 is fixedly connected to the inner wall of the left end cylinder 8 through the grid frame 15. The central shaft 13 extends to the outside of the left end cylinder 8 and is connected to a drive motor 18 through the transmission belt 17. The drive motor 18 drives the central shaft 13 to rotate through the transmission belt 17. The central shaft 13 drives the inner spiral blade 12 to rotate. The inner spiral blade 12 transports the kitchen waste put into the screen cylinder 7 and scrapes and cleans the kitchen waste remaining on the inner wall of the screen cylinder 7. At the same time, the central shaft 13 drives the left end cylinder 8 to rotate through the grid frame 15. The left end cylinder 8 drives the outer spiral blade 14 to rotate. The outer spiral blade 14 scrapes and cleans the outer wall of the screen cylinder 7. Please see Figure 4 and Figure 9 Water injection groove 1201 and drainage groove 1401 are respectively provided on the opposite side walls of the inner spiral blade 12 and the outer spiral blade 14. The screen cylinder 7 is provided with uniformly distributed screen holes 701. The inner spiral blade 12 is provided with a blade channel 1202 that communicates with the water injection groove 1201. The central shaft 13 is provided with an inner shaft channel 1301 that communicates with the blade channel 1202. The central shaft 13 extends to the outside of the left end cylinder 8 and is rotatably connected to a rotary joint 16. The rotary joint 16 communicates with the inner shaft channel 1301 and with an external water supply mechanism. The external water supply mechanism injects clean water into the inner shaft channel 1301 through the rotary joint 16. The clean water entering the inner shaft channel 1301 is injected into the water injection groove 1201 through the blade channel 1202. The clean water passing through the water injection groove 1201 washes the screen holes 701. The rinsing waste liquid generated after rinsing the screen holes 701 is discharged into the drainage groove 1401. Please see Figure 3 and Figure 6 The right end cylinder 9 has a slag discharge chamber that communicates with the drainage trough 1401. A rotating ring 21 is rotatably connected inside the slag discharge chamber. A slag discharge pipe 22 that communicates with the slag discharge chamber is fixedly connected to the outer circumference of the rotating ring 21. A waste liquid cylinder 6 is fixedly connected to the lower end of the dewatering cylinder 2. The slag discharge pipe 22 is fixedly connected to the waste liquid cylinder 6. The rinsing waste liquid that enters the drainage trough 1401 is injected into the waste liquid cylinder 6 through the slag discharge pipe 22 for collection.

[0021] Compared to traditional solid waste treatment devices, this invention utilizes inner and outer spiral blades 12 and 14 arranged in the same direction, driven by the left end cylinder 8 and the grid frame 15 to rotate synchronously. This allows for simultaneous scraping and cleaning of the inner and outer walls of the screen cylinder 7, reducing the residue and accumulation of kitchen waste on the inner and outer walls of the screen cylinder 7, and lowering the probability of kitchen waste clogging the screen holes 701 inside and outside. Simultaneously, water injection troughs 1201 located on the opposite sidewalls of the inner and outer spiral blades 12 and 14... The drainage trough 1401, in conjunction with the rotation of both, performs closed rinsing of the screen holes 701 evenly distributed on the entire screen cylinder 7, rinsing away the kitchen waste residue remaining in the screen holes 701 after being cut off by the inner spiral blade 12 and the outer spiral blade 14, thereby rinsing the inner cavity of the screen holes 701 and further improving the cleaning effect of the screen cylinder 7; in addition, through the slag discharge chamber opened in the right end cylinder 9 and the slag discharge pipe 22 connected to the slag discharge chamber, the rinsing waste liquid is centrally discharged into the waste liquid cylinder 6, improving the rinsing effect while reducing the probability of the rinsing waste liquid adhering to the outer wall of the screen cylinder 7 a second time.

[0022] Please see Figure 4 and Figure 5 The left end of the cylinder 8 is rotatably connected to the left end plate 10, and the left end plate 10 is fixedly connected to the feed pipe 11. The upper end of the feed pipe 11 is fixedly connected to the feeding hopper 1. The feeding hopper 1 is fixedly connected to the outer wall of the dewatering cylinder 2 through the support plate. The feeding hopper 1 is rotatably connected to the crushing roller 20, and the end of the crushing roller 20 is connected to the rotating motor that drives it to rotate.

[0023] Specifically, the kitchen waste is put into the feeding hopper 1, the crushing roller 20 crushes the kitchen waste, and the crushed kitchen waste is injected into the left end cylinder 8 through the feeding pipe 11, and then the kitchen waste flows into the screen cylinder 7.

[0024] Please see Figure 4 The cross-sections of the inner spiral blade 12 and the outer spiral blade 14 in contact with the sieve cylinder 7 are both isosceles trapezoids.

[0025] Specifically, when the inner spiral blade 12 and the outer spiral blade 14 rotate on the inner and outer walls of the screen cylinder 7, the contact portion with an isosceles trapezoidal cross section facilitates better removal of kitchen waste adhering to the inner and outer walls of the screen cylinder 7, thereby improving the scraping and cleaning effect.

[0026] Please see Figure 4 Both the water injection tank 1201 and the drainage tank 1401 have isosceles trapezoidal cross sections, and their opening widths are equal and both are larger than the diameter of the sieve hole 701.

[0027] Specifically, the cleaning water flowing through the relatively arranged water injection tank 1201 and drainage tank 1401 has a better rinsing and cleaning effect on the sieve holes 701.

[0028] Please see Figure 6 The slag discharge chamber includes an annular cavity 901 and an annular groove 902, which are concentrically arranged on the shell wall of the right end cylinder 9. The annular cavity 901 and the annular groove 902 are connected by a plurality of radial holes 903 distributed in a circle. The annular cavity 901 is connected to the drainage groove 1401 through a transverse hole 904 opened on the side wall of the right end cylinder 9. The rotating ring 21 is rotatably nested in the annular groove 902.

[0029] Specifically, the flushing waste liquid flows into the annular cavity 901 through the drainage channel 1401 and the transverse hole 904, then flows into the annular channel 902 through the radial hole 903, and finally is discharged into the slag discharge pipe 22; it should be noted that the rotating ring 21 and the annular channel 902 enclose an annular cavity space.

[0030] The second implementation method: Figure 3 , Figures 10-13 A solid waste treatment device is shown. Based on the first embodiment, an external toothed ring 23 is fixedly connected to the right side of the right end cylinder 9. A transmission gear 24 is meshed on the inner side of the external toothed ring 23. The transmission gear 24 is rotatably connected to the inner wall of the dewatering cylinder 2 through the mounting shaft 25. An internal toothed ring 26 is meshed on the inner side of the transmission gear 24. The internal toothed ring 26 is fixedly sleeved with the screen cylinder 7.

[0031] Specifically, when the right end cylinder 9 rotates along with the left end cylinder 8, it drives the screen cylinder 7 to rotate through the external gear ring 23, the transmission gear 24 and the internal gear ring 26, so that the screen cylinder 7 rotates and centrifugally dewaters, thereby increasing the dewatering speed and improving the dewatering effect of kitchen waste liquid. It should be noted that the transmission assembly composed of the external gear ring 23, the transmission gear 24 and the internal gear ring 26 makes the rotation direction of the screen cylinder 7 opposite to the rotation direction of the inner spiral blade 12.

[0032] Please see Figure 3 , Figure 4 and Figure 10 An isolation plate 36 is rotatably connected to the outer side of the right end cylinder 9 and fixedly connected to the inner wall of the dewatering cylinder 2. The isolation plate 36 is located on the left side of the right end cylinder 9. The sieve holes 701, which are evenly distributed on the sieve cylinder 7, are located between the left end cylinder 8 and the right end cylinder 9. A connecting rod 19 is fixedly connected between the left end cylinder 8 and the right end cylinder 9. The connecting rod 19 passes through the outer spiral blade 14 and is fixedly connected to the outer spiral blade 14.

[0033] Specifically, the transmission assembly consisting of the external gear ring 23, the transmission gear 24 and the internal gear ring 26 is protected by the isolation plate 36, the stability of the connection between the left end cylinder 8 and the right end cylinder 9 is improved by the connecting rod 19, and the structural strength of the external helical blade 14 is improved, so that the power transmission between the left end cylinder 8 and the right end cylinder 9 is more stable.

[0034] Please see Figure 3 and Figure 12 The right end of the dewatering cylinder 2 is fixedly connected to the drying cylinder 3, which is connected to the screen cylinder 7. The right end of the drying cylinder 3 is fixedly connected to the feeding pipe 4. A waste residue box 5 is provided below the feeding pipe 4. The drying cylinder 3 is equipped with a spiral conveying roller 27, which is fixedly connected to the right end of the central shaft 13. A heating device 2701 is fixedly connected inside the spiral conveying roller 27.

[0035] Specifically, the central shaft 13 drives the spiral conveyor roller 27 to rotate, pushing the dewatered waste residue to continue moving along the drying cylinder 3. At the same time, the heating device 2701 inside the spiral conveyor roller 27 heats the waste residue conveyed by the spiral, further improving the dewatering effect of the waste residue. It should be noted that the heating device 2701 is either a heating plate or a heating wire, which is existing technology and will not be described in detail in this application.

[0036] Please see Figure 12 A ventilator 28 is fixedly connected inside the drying cylinder 3. The ventilator 28 and the inner wall of the drying cylinder 3 form an annular gap. A suction pipe 29 communicating with the annular gap is fixedly connected to the outer wall of the drying cylinder 3. A suction cylinder 30 is fixedly connected to the end of the suction pipe 29. An exhaust pipe 31 is fixedly connected to the upper end of the suction cylinder 30. The exhaust pipe 31 extends into the waste liquid cylinder 6. The lower outlet of the exhaust pipe 31 is located below the surface of the waste liquid.

[0037] Specifically, the suction cylinder 30 draws in the evaporated water vapor in the annular gap through the suction pipe 29 and injects it into the waste liquid in the waste liquid cylinder 6 through the exhaust pipe 31. The evaporated water vapor and odor are injected into the waste liquid to absorb the evaporated water vapor and odor, thereby improving the drying efficiency and reducing the leakage of the suction. It should be noted that the spiral blades of the spiral conveyor roller 27 slide against the inner wall of the ventilator cylinder 28, and the ventilator cylinder 28 is provided with evenly distributed vent holes.

[0038] Please see Figure 12 and Figure 13 One-way valves are fixedly connected to the connection points of the suction pipe 29 and the exhaust pipe 31 with the suction cylinder 30. A piston disc 32 is slidably connected inside the suction cylinder 30. A snap-fit ​​frame 33 extending to the bottom of the suction cylinder 30 is fixedly connected to the piston disc 32. An eccentric grooved disc 34 is snapped into the snap-fit ​​frame 33. An extension shaft 35 is fixedly connected to the eccentric grooved disc 34. The extension shaft 35 extends into the discharge pipe 4 and is fixedly connected to the end of the screw conveyor roller 27.

[0039] Specifically, the central shaft 13 drives the extension shaft 35 to rotate via the spiral conveying roller 27, and the extension shaft 35 drives the eccentric grooved disk 34 to rotate. The eccentric grooved disk 34 drives the piston disk 32 to move up and down reciprocally within the suction cylinder 30 via the snap-fit ​​frame 33. It also works in conjunction with the one-way valves located at the connection points between the suction pipe 29 and the exhaust pipe 31 and the suction cylinder 30 to achieve one-way extraction and injection of evaporated water vapor and odor. It should be noted that the snap-fit ​​frame 33 and the eccentric grooved disk 34 are common crank-slider mechanisms, which will not be described in detail in this application.

[0040] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A solid waste treatment apparatus, characterized by, The application relates to a dehydration cylinder (2), a screen cylinder (7) is rotatably connected in the dehydration cylinder (2), a left end cylinder (8) is rotatably connected to the left end of the screen cylinder (7), the left end cylinder (8) penetrates through the left side wall of the dehydration cylinder (2) and is rotatably connected with the dehydration cylinder (2), a right end cylinder (9) is rotatably sleeved with the part close to the right end of the screen cylinder (7), outer spiral blades (14) are arranged between the left end cylinder (8) and the right end cylinder (9) and fixedly connected with the two, the inner wall of the outer spiral blades (14) is slidably abutted with the outer wall of the screen cylinder (7); a central shaft (13) is arranged in the screen cylinder (7), the outer wall of the central shaft (13) is fixedly connected with inner spiral blades (12) abutting against the inner wall of the screen cylinder (7), the inner spiral blades (12) are arranged in the same direction and opposite to the outer spiral blades (14), the central shaft (13) is fixedly connected with the inner wall of the left end cylinder (8) through a grid frame (15), the central shaft (13) extends to the outside of the left end cylinder (8) and is connected with a driving motor (18) through a transmission belt (17); water injection grooves (1201) and water discharge grooves (1401) are respectively arranged on the opposite side walls of the inner spiral blades (12) and the outer spiral blades (14), screen holes (701) are uniformly arranged on the screen cylinder (7), a blade channel (1202) is arranged in the inner spiral blades (12) and communicated with the water injection grooves (1201), an inner shaft channel (1301) is arranged in the central shaft (13) and communicated with the blade channel (1202), the central shaft (13) extends to the outside of the left end cylinder (8) and is rotatably connected with a rotary joint (16), the rotary joint (16) is communicated with the inner shaft channel (1301) and an external water supply mechanism; a residue discharging cavity is arranged in the right end cylinder (9) and communicated with the water discharge grooves (1401), a rotating ring (21) is rotatably connected in the residue discharging cavity, a residue discharging pipe (22) is fixedly connected with the circumferential outer wall of the rotating ring (21) and communicated with the residue discharging cavity, a waste liquid cylinder (6) is fixedly connected with the lower end of the dehydration cylinder (2), the residue discharging pipe (22) is fixedly communicated with the waste liquid cylinder (6).

2. A solid waste treatment apparatus as claimed in claim 1, wherein An outer gear ring (23) is fixedly connected with the right side of the right end cylinder (9), a transmission gear (24) is engaged with the inner side of the outer gear ring (23), the transmission gear (24) is rotatably connected with the inner wall of the dehydration cylinder (2) through a mounting shaft (25), an inner gear ring (26) is engaged with the inner side of the transmission gear (24), and the inner gear ring (26) is fixedly sleeved with the screen cylinder (7).

3. A solid waste treatment apparatus as claimed in claim 2, wherein An drying cylinder (3) is fixedly connected with the right end of the dehydration cylinder (2) and communicated with the screen cylinder (7), a discharging pipe (4) is fixedly connected with the right end of the drying cylinder (3), a waste residue box (5) is arranged below the discharging pipe (4), a spiral conveying roller (27) is fixedly connected with the right end of the central shaft (13) in the drying cylinder (3), and a heating device (2701) is fixedly connected in the spiral conveying roller (27).

4. A solid waste treatment apparatus as claimed in claim 3, wherein The drying cylinder (3) is fixedly connected with a breathable cylinder (28), an annular gap is formed between the breathable cylinder (28) and the inner wall of the drying cylinder (3), the outer wall of the drying cylinder (3) is fixedly connected with a suction pipe (29) in communication with the annular gap, the end of the suction pipe (29) is fixedly connected with a suction cylinder (30), the upper end of the suction cylinder (30) is fixedly connected with an exhaust pipe (31), the exhaust pipe (31) extends into the waste liquid cylinder (6), and the lower end outlet of the exhaust pipe (31) is located below the waste liquid level.

5. The solid waste disposal apparatus of claim 1 wherein, The left end plate (10) is fixedly connected with a feeding pipe (11), the upper end of the feeding pipe (11) is fixedly connected with a feeding hopper (1), the feeding hopper (1) is fixedly connected with the outer wall of the dehydration cylinder (2) through a support plate, the feeding hopper (1) is rotatably connected with a crushing roller (20), and the end of the crushing roller (20) is connected with a rotating motor for driving the rotation thereof.

6. The solid waste disposal apparatus of claim 1 wherein, The cross sections of the inner spiral blade (12) and the outer spiral blade (14) in contact with the screen cylinder (7) are isosceles trapezoidal, the cross sections of the water injection groove (1201) and the water drainage groove (1401) are isosceles trapezoidal, and the opening widths of the water injection groove (1201) and the water drainage groove (1401) are equal and greater than the diameter of the screen hole (701).

7. The solid waste disposal apparatus of claim 1 wherein, The slag discharge cavity comprises an annular cavity (901) and an annular groove (902) which are arranged in the same center and are arranged on the shell wall of the right end cylinder (9), the annular cavity (901) and the annular groove (902) are communicated through a plurality of circumferentially distributed radial holes (903), the annular cavity (901) is communicated with the water drainage groove (1401) through a transverse hole (904) arranged on the side wall of the right end cylinder (9), and the rotating ring (21) is rotatably nested in the annular groove (902).

8. The solid waste disposal apparatus of claim 2 wherein, The right end cylinder (9) is rotatably connected with an isolation plate (36) fixedly connected with the inner wall of the dehydration cylinder (2) on the outer side, the isolation plate (36) is located on the left side of the right end cylinder (9), the screen holes (701) uniformly distributed on the screen cylinder (7) are located between the left end cylinder (8) and the right end cylinder (9), the left end cylinder (8) and the right end cylinder (9) are fixedly connected with a penetrating rod (19) penetrating through and fixedly connected with the outer spiral blade (14).

9. A solid waste treatment apparatus as defined in claim 4, wherein The communication parts of the suction pipe (29) and the exhaust pipe (31) with the suction cylinder (30) are fixedly connected with one-way valves, the suction cylinder (30) is slidably connected with a piston disc (32), the piston disc (32) is fixedly connected with a clamping frame (33) extending below the suction cylinder (30), the clamping frame (33) is clamped with an eccentric groove disc (34), the eccentric groove disc (34) is fixedly connected with an extension shaft (35), and the extension shaft (35) extends into the discharging pipe (4) and is fixedly connected with the end of the spiral conveying roller (27).

Images