Harmless dangerous treatment device and method for solid wastes

Abstract

The invention belongs to the technical field of waste treatment, and particularly relates to a solid waste dangerousness harmless treatment device and method.The solid waste dangerousness harmless treatment device comprises a rack, and a crushing box, an incinerator and a treatment barrel are sequentially arranged on the rack; two crushing rollers used for crushing solid waste are rotationally mounted at the upper end in the crushing box, a sieve plate which is obliquely arranged is arranged below the crushing rollers, and a partition plate which is obliquely arranged is arranged below the sieve plate; a communicating cavity used for communicating with an incinerator is formed in one side of the crushing box, a bottom plate is arranged in the communicating cavity, and a scraping plate used for cleaning crushed waste is slidably arranged on the surface of the bottom plate. According to the solid waste crushing device, solid waste crushed by the crushing roller can be conveyed downwards along the sieve plate, the solid waste which is not fully treated in the crushing process can be treated again through the cutters, and it can be guaranteed that solids are cut off and crushed through the double-layer cutters.

Description

Technical Field

[0001] This invention belongs to the field of waste treatment technology, and in particular relates to a device and method for the harmless treatment of hazardous solid waste. Background Technology

[0002] Solid waste treatment is the process of reducing the volume of waste and accelerating its natural purification through physical means (such as crushing, compression, drying, evaporation, and incineration), biochemical processes (such as oxidation, digestion, and absorption), and chemical processes such as pyrolysis and gasification. It generally refers to solid and sludge-like materials discarded by humans in production and daily life activities, including solid particles separated from wastewater and waste gas.

[0003] When treating solid waste, after simple crushing, it is directly fed into the incinerator for incineration. Some solid waste is not completely crushed and contains a lot of large pieces of solid. This makes it difficult to fully incinerate the large pieces of solid during the incineration process, and the incineration of large pieces of solid is more difficult and less efficient. Summary of the Invention

[0004] Based on the technical problems existing in the background art, the present invention proposes a device and method for the harmless treatment of hazardous solid waste.

[0005] The present invention proposes a device for the harmless treatment of hazardous solid waste, including a frame on which a crushing box, an incinerator, and a treatment cylinder are arranged in sequence. Two crushing rollers for crushing solid waste are rotatably installed at the upper end of the crushing box. An inclined screen plate is arranged below the crushing rollers, and an inclined partition plate is arranged below the screen plate. A communication chamber for communicating with an incinerator is provided on one side of the crushing box. A bottom plate is provided inside the communication chamber, and a scraper for cleaning the crushed waste is slidably provided on the surface of the bottom plate. A rotating fan is installed inside the incinerator, fuel for burning solid waste is fed into the incinerator, and a rotating door is movably connected to the side of the incinerator away from the crushing box. The incinerator is connected to a first conveying pipe for conveying flue gas, and the treatment cylinder is connected to a second conveying pipe. The first conveying pipe and the second conveying pipe are connected, and a rotating cylinder is rotatably installed at the connection point. An ionization device for treating flue gas is installed inside the rotating cylinder, and a discharge pipe is connected to one side of the treatment cylinder.

[0006] Preferably, a first motor is fixedly installed on the side of the crushing box, and an inner cavity is formed inside the crushing box through a partition. Two meshing drive gears are rotatably installed in the inner cavity. The two drive gears are respectively fixedly connected to one end of two crushing rollers, and the drive end of the first motor is fixedly connected to one of the drive gears.

[0007] Preferably, a second motor is fixedly installed on the communicating cavity, a first sprocket is fixedly connected to the drive end of the second motor, a first sprocket is fixedly sleeved on one end of the rotating fan, and a first chain is sleeved between the two first sprockets.

[0008] Preferably, cylinders are symmetrically fixedly installed on both sides of the inner cavity, and two cutters are fixedly connected to the drive ends of the two cylinders.

[0009] Preferably, a drive mechanism is provided at both ends of the scraper, and isolation frames are symmetrically arranged on both sides of the frame. The drive mechanism is respectively arranged in the two isolation frames. The drive mechanism includes a mounting block and a first pinion and a second pinion rotatably mounted on the mounting block. The mounting block is fixedly connected to the end of the scraper. The first pinion and the second pinion mesh with each other. A fourth motor is also installed in the mounting block. The drive end of the fourth motor is fixedly connected to the second pinion. A rack plate is provided at the top of each of the two isolation frames. The rack plate is arranged above the base plate, and the first pinion meshes with the rack plate.

[0010] Preferably, a central shaft is fixedly installed in the center of the rotating drum, and multiple electrical plates are fixedly installed around the surface of the central shaft. A second rotating gear is fixedly sleeved on the outer surface of the rotating drum. A support plate is fixedly installed on one side of the incinerator, and a linkage mechanism is provided on the support plate. The linkage mechanism is used to drive the second rotating gear to rotate.

[0011] Preferably, the linkage mechanism includes a first rotating gear, a third motor is fixedly mounted on the support plate, a first sprocket is fixedly connected to the drive end of the third motor, a rotating shaft is provided below the rotating drum, a first rotating gear is fixedly connected to the rotating shaft, a first sprocket is also fixedly mounted on the rotating shaft, a second chain is sleeved between the two first sprockets, and the second rotating gear meshes with the first rotating gear.

[0012] Preferably, a first mesh plate is provided at one end of the rotating drum, and the central shaft is rotatably installed inside the first conveying pipe via a fixing rod. A first mesh plate and a second mesh plate are respectively provided at both ends of the rotating drum. The first mesh plate is fixedly connected to the rotating drum, and the second mesh plate is fixedly connected to the second conveying pipe. A fixed shaft is provided on the side of the first mesh plate away from the rotating drum, and a movable shaft is provided on the side of the second mesh plate close to the rotating drum. The fixed shaft is fixedly connected to the inner wall of the first conveying pipe, and the movable shaft is fixedly sleeved on the central shaft.

[0013] This invention also proposes a method for the harmless treatment of hazardous solid waste, comprising the following steps: S1: Solid waste is fed into the crushing box from the inlet. Two crushing rollers rotate relative to each other, crushing the solid waste into blocks. The small pieces will fall directly onto the partition and slide down along the partition. The large pieces will fall onto the screen plate and slide down along the screen plate to the bottom plate. S2: The cutter moves up and down, and the large solid pieces that fall to the bottom plate are processed by the cutter again to cut them into smaller pieces. S3: To prevent waste from accumulating on the bottom plate, the scraper will move along the surface of the bottom plate to clean the surface and push the secondary crushed waste off the surface of the bottom plate. S4: The waste will eventually enter the incinerator. Fuel is ignited in the incinerator, and the waste will be burned. During the incineration process, the rotating fan will push the accumulated waste apart, so that it can fully contact the air and fuel. The ash produced by incineration can be cleaned out through the rotating door. S5: The smoke and dust generated during the incineration process will be directly conveyed forward along the first conveying pipe. When it is conveyed to the rotating drum, the rotating drum will drive the internal energized plate to rotate. The rotating energized plate has a guiding effect on the air, ensuring the smooth flow of smoke and dust. At the same time, the energized plate is energized to ionize the smoke and dust, and oxidize and decompose the harmful substances in it. The first screen plate and the second screen plate can filter out particulate matter in the smoke and dust. S6: The flue gas after being ionized by the rotary drum is fed into the treatment cylinder through the second conveying pipe. The treatment cylinder contains a treatment liquid for treating the combustion gas. The treatment liquid reacts with the gas to treat it. The treated gas is finally discharged through the discharge pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the solid waste crushed by the crushing roller is conveyed downward along the screen plate. The solid waste that is not fully processed during the crushing process is processed again by the cutter. The use of double-layer cutters can ensure that the solid is cut and crushed.

[0015] 2. In this invention, when transporting smoke and dust, the rotation of the drum will drive the internal electrified plate to rotate. The rotating electrified plate guides the air and ensures the smooth flow of smoke and dust. At the same time, the electrified plate is energized to ionize the smoke and dust and oxidize and decompose the harmful substances in it. Meanwhile, when rotating, the first and second mesh plates can filter out particulate matter in the smoke and dust. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a solid waste hazardous harmless treatment device proposed in this invention; Figure 2 This is a schematic diagram of the planar structure of a solid waste hazardous harmless treatment device proposed in this invention; Figure 3 This is a schematic diagram of the internal structure of a hazardous and harmless solid waste treatment device proposed in this invention. Figure 4 This is a schematic diagram of the internal rear structure of a solid waste hazardous harmless treatment device proposed in this invention; Figure 5 A schematic diagram of the internal structure of the crushing chamber and incinerator; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of one side of the rotating drum and linkage mechanism; Figure 8 This is a schematic diagram of the other side of the rotating drum and linkage mechanism.

[0017] In the diagram: 1. Frame, 2. Crushing box, 3. Incinerator, 4. First conveying pipe, 5. Inlet, 6. Isolation frame, 7. Processing cylinder, 8. Discharge pipe, 9. Rotary drum, 10. Support plate, 11. Second conveying pipe, 12. Crushing roller, 13. Screen plate, 14. Partition plate, 15. First motor, 16. Bottom plate, 17. Guide plate, 18. Connecting cavity, 19. Second motor, 20. Rotating fan, 21. Rotary door, 22. Second rotating gear, 23. First rotating gear, 24. Rack plate, 25. First chain, 26. Second chain, 27. Scraper, 28. Cylinder, 29. Cutter, 30. First screen plate, 31. First sprocket, 32. Central shaft, 33. Power board, 34. Third motor, 35. Second screen plate, 36. Rotating shaft, 37. Second pinion, 38. Fixed shaft, 39. Moving shaft, 40. Drive gear, 41. First sprocket, 42. Mounting block, 43. Fourth motor, 44. First pinion. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Reference Figures 1-8 A device for the harmless treatment of hazardous solid waste includes a frame 1, on which a crushing box 2, an incinerator 3, and a treatment cylinder 7 are arranged in sequence. Two crushing rollers 12 for crushing solid waste are rotatably installed at the upper end of the crushing box 2. An inclined screen plate 13 is arranged below the crushing rollers 12, and an inclined partition plate 14 is arranged below the screen plate 13. A communication chamber 18 for communicating with the incinerator 3 is provided on one side of the crushing box 2. A bottom plate 16 is provided inside the communication chamber 18. A scraper 27 for cleaning the crushed waste is slidably provided on the surface of the bottom plate 16. A rotating fan 20 is installed inside the incinerator 3. Fuel for burning solid waste is fed into the incinerator 3. A rotating door 21 is movably connected to the side of the incinerator 3 away from the crushing box 2. The incinerator 3 is connected to a first conveying pipe 4 for conveying flue gas, and the treatment cylinder 7 is connected to a second conveying pipe 11. The first conveying pipe 4 and the second conveying pipe 11 are connected, and a rotating cylinder 9 is rotatably installed at the connection point. An ionization device for treating flue gas is installed inside the rotating cylinder 9, and an exhaust pipe 8 is connected to one side of the treatment cylinder 7.

[0020] A first motor 15 is fixedly installed on the side of the crushing box 2. An inner cavity is formed inside the crushing box 2 by a partition. Two meshing drive gears 40 are rotatably installed inside the inner cavity. Each drive gear 40 is fixedly connected to one end of a crushing roller 12. The drive end of the first motor 15 is fixedly connected to one of the drive gears 40. Solid waste to be processed is fed into the crushing box 2 through the inlet 5. The first motor 15 drives one of the drive gears 40 to rotate via its drive end. The two meshing drive gears 40 rotate relative to each other, thereby driving the crushing roller 12 to rotate, thus crushing the fed solid waste, breaking large pieces of solid waste into smaller pieces for easier subsequent processing.

[0021] A second motor 19 is fixedly installed on the connecting cavity 18. The drive end of the second motor 19 is fixedly connected to a first sprocket 41. One end of the rotating fan 20 is fixedly sleeved with the first sprocket 41. A first chain 25 is sleeved between the two first sprockets 41. The solid waste crushed by the crushing box 2 is fed into the incinerator 3 for incineration through the connecting cavity 18.

[0022] Two cylinders 28 are symmetrically fixedly installed on both sides of the inner cavity, and two cutters 29 are fixedly connected to the drive ends of the two cylinders 28. The solid waste crushed by the crushing roller 12 will be conveyed downward along the screen plate 13. The solid waste that is not fully processed during the crushing process will be processed again by the cutters 29. The use of double-layer cutters 29 can ensure that the solid is cut and crushed.

[0023] Both ends of the scraper 27 are equipped with drive mechanisms. Isolation frames 6 are symmetrically arranged on both sides of the frame 1. The drive mechanisms are respectively set in the two isolation frames 6. The drive mechanisms include mounting blocks 42 and first pinion 44 and second pinion 37 rotatably mounted on the mounting blocks 42. The mounting blocks 42 are fixedly connected to the ends of the scraper 27. The first pinion 44 and the second pinion 37 mesh with each other. A fourth motor 43 is also installed in the mounting blocks 42. The drive end of the fourth motor 43 is fixedly connected to the second pinion 37. A rack plate 24 is set at the top of each of the two isolation frames 6. The rack plate 24 is set above the base plate 16. The first pinion 44 meshes with the rack plate 24. The waste, after being crushed and further shredded by the cutter 29, accumulates on the base plate 16. The drive mechanism is activated, causing the mounting block 42 to move on the surface of the base plate 16, thereby pushing the waste into the incinerator 3 for incineration. The fourth motor 43 drives the second pinion 37 to rotate through the drive end. The rotation of the second pinion 37 drives the first pinion 44 to rotate. As the first pinion 44 rotates, it can drive the mounting block 42 and the scraper 27 to move, thereby pushing the waste out.

[0024] A central shaft 32 is fixedly installed inside the rotating drum 9. Multiple energized plates 33 are fixedly mounted around the surface of the central shaft 32. A second rotating gear 22 is fixedly sleeved on the outer surface of the rotating drum 9. A support plate 10 is fixedly installed on one side of the incinerator 3. A linkage mechanism is provided on the support plate 10 to drive the second rotating gear 22 to rotate. The linkage mechanism drives the second rotating gear 22 to rotate, which in turn causes the rotating drum 9 to rotate. This allows the energized plates 33 inside the rotating drum 9 to rotate, ensuring thorough mixing between the energized plates 33 and the flue gas, thereby ionizing and oxidizing the harmful substances in the flue gas. Simultaneously, the rotation of the central shaft 32 provides a guiding effect on the flue gas.

[0025] The linkage mechanism includes a first rotating gear 23, a third motor 34 fixedly mounted on the support plate 10, a first sprocket 31 fixedly connected to the drive end of the third motor 34, a rotating shaft 36 below the rotating drum 9, a first rotating gear 23 fixedly connected to the rotating shaft 36, and a first sprocket 31 also fixedly mounted on the rotating shaft 36. A second chain 26 is sleeved between the two first sprockets 31, and a second rotating gear 22 meshes with the first rotating gear 23. The third motor 34 drives the first sprocket 31 to rotate through its drive end, and drives the other first sprocket 31 to rotate through the second chain 26, causing the rotating shaft 36 to rotate, ultimately causing the first rotating gear 23 to rotate. The first rotating gear 23 meshes with the second rotating gear 22, and finally the rotating drum 9 rotates together with the second rotating gear 22.

[0026] A first screen plate 30 is provided at one end of the rotating drum 9. The central shaft 32 is rotatably installed in the first conveying pipe 4 through a fixed rod. A first screen plate 30 and a second screen plate 35 are respectively provided at both ends of the rotating drum 9. The first screen plate 30 is fixedly connected to the rotating drum 9, and the second screen plate 35 is fixedly connected to the second conveying pipe 11. A fixed shaft 38 is provided on the side of the first screen plate 30 away from the rotating drum 9, and a movable shaft 39 is provided on the side of the second screen plate 35 close to the rotating drum 9. The fixed shaft 38 is fixedly connected to the inner wall of the first conveying pipe 4, and the movable shaft 39 is fixedly sleeved on the central shaft 32. Under the action of the linkage mechanism, the entire rotating drum 9 will rotate. The fixed shaft 38 is fixedly connected to the first conveying pipe 4, and the second mesh plate 35 is fixed together with the second conveying pipe 11. When the rotating drum 9 rotates, the first mesh plate 30 rotates and its surface rubs against the fixed shaft 38, and the moving shaft 39 rotates and rubs against the surface of the second mesh plate 35. During use, the solid particles in the smoke and dust generated by combustion can easily adhere to the surfaces of the first mesh plate 30 and the second mesh plate 35. After being scraped by the fixed shaft 38 and the moving shaft 39, the surface can be effectively cleaned to reduce the blockage of particles and ensure the smooth passage of smoke and dust.

[0027] A method for the hazardous and harmless treatment of solid waste includes the following steps: S1: Solid waste is fed into the crushing box 2 from the inlet 5. The first motor 15 drives the drive gear 40 to rotate through the drive end. The two drive gears 40 mesh with each other and eventually drive the two crushing rollers 12 to rotate relative to each other. As the crushing rollers 12 rotate, the solid waste is crushed into blocks. The small pieces will fall directly onto the partition 14 and slide down along the partition 14. The large pieces will fall onto the screen plate 13 and slide down along the screen plate 13 to the bottom plate 16. S2: Drive two cylinders 28 to move the cutter 29 up and down. Large solid pieces that fall onto the bottom plate 16 are processed again by the cutter 29 and cut into smaller pieces. The large solid pieces are directly screened out by the sieve plate 13 and then cut directly by the cutter 29 for easy incineration. S3: To prevent waste from accumulating on the bottom plate 16, the drive mechanism is activated to move the scraper 27. The fourth motor 43 drives the second pinion 37 to rotate through the drive end. The second pinion 37 meshes with the first pinion 44, driving the first pinion 44 to rotate. The first pinion 44 meshes with the rack plate 24. As the first pinion 44 rotates, the scraper 27 moves along the surface of the bottom plate 16, thereby cleaning the surface of the bottom plate 16 and pushing the secondary crushed waste off the surface of the bottom plate 16. S4: The waste pushed from the bottom plate 16 and the waste sliding along the surface of the guide plate 17 will eventually enter the incinerator 3. Fuel is ignited in the incinerator 3, and the waste will be incinerated. During the incineration process, the second motor 19 drives the connected first sprocket 41 to rotate through the drive end, and drives another first sprocket 41 to rotate through the first chain 25, which eventually makes the rotating fan 20 rotate. The slowly rotating fan 20 can open up the accumulated waste, so that it can fully contact the air and fuel, thereby enabling more efficient incineration. The ash produced by incineration can be cleaned out through the rotating door 21. S5: The smoke and dust generated during the incineration process will be directly conveyed forward along the first conveying pipe 4. When it is conveyed to the position of the rotating drum 9, the third motor 34 in the linkage mechanism drives the first sprocket 31 to rotate through the drive end. The first sprocket 31 drives another first sprocket 31 to rotate through the second chain 26, so that the rotating shaft 36 drives the first rotating gear 23 to rotate. The first rotating gear 23 drives the rotating drum 9 to rotate through the second rotating gear 22. The rotation of the rotating drum 9 will drive the internal energized plate 33 to rotate. The rotating energized plate 33 has a guiding effect on the air to ensure the smooth flow of smoke and dust. At the same time, the energized plate 33 is energized to ionize the smoke and dust and oxidize and decompose the harmful substances in it. At the same time, when rotating, the first screen plate 30 and the second screen plate 35 can filter out the particulate matter in the smoke and dust. The rotating drum 9 is detachable. It can be removed to clean the particulate matter. S6: The smoke and dust after being ionized by the rotating drum 9 are fed into the treatment drum 7 through the second conveying pipe 11. The treatment drum 7 contains a treatment liquid for treating the combustion gas. The treatment liquid reacts with the gas to treat it. The treated gas is finally discharged through the discharge pipe 8.

[0028] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for the harmless treatment of hazardous solid waste, characterized in that, Includes a frame (1), on which a crushing box (2), an incinerator (3), and a processing cylinder (7) are arranged in sequence. Two crushing rollers (12) for crushing solid waste are rotatably installed at the upper end of the crushing box (2). An inclined screen plate (13) is arranged below the crushing rollers (12), and an inclined partition plate (14) is arranged below the screen plate (13). The crushing box (2) has a communication cavity (18) on one side for communicating with the incinerator (3). A bottom plate (16) is provided in the communication cavity (18). A scraper (27) for cleaning the crushed waste is slidably provided on the surface of the bottom plate (16). A rotating fan (20) is rotatably installed inside the incinerator (3), and fuel for burning solid waste is fed into the incinerator (3). A rotating door (21) is movably connected to the side of the incinerator (3) away from the crushing box (2). The incinerator (3) is connected to a first conveying pipe (4) for conveying smoke and dust, and the processing cylinder (7) is connected to a second conveying pipe (11). The first conveying pipe (4) and the second conveying pipe (11) are connected, and a rotating cylinder (9) is rotatably installed at the connection point. An ionization device for processing smoke and dust is provided inside the rotating cylinder (9), and an exhaust pipe (8) is connected to one side of the processing cylinder (7).

2. The solid waste hazardous harmless treatment device according to claim 1, characterized in that, A first motor (15) is fixedly installed on the side of the crushing box (2). An inner cavity is formed inside the crushing box (2) through a partition. Two meshing drive gears (40) are rotatably installed inside the inner cavity. The two drive gears (40) are respectively fixedly connected to one end of the two crushing rollers (12). The drive end of the first motor (15) is fixedly connected to one of the drive gears (40).

3. The solid waste hazardous harmless treatment device according to claim 1, characterized in that, A second motor (19) is fixedly installed on the connecting cavity (18). The drive end of the second motor (19) is fixedly connected to a first sprocket (41). One end of the rotating fan (20) is fixedly sleeved with a first sprocket (41). A first chain (25) is sleeved between the two first sprockets (41).

4. The solid waste hazardous harmless treatment device according to claim 2, characterized in that, Two cylinders (28) are symmetrically fixedly installed on both sides of the inner cavity, and two cutters (29) are fixedly connected to the drive ends of the two cylinders (28).

5. The solid waste hazardous harmless treatment device according to claim 1, characterized in that, Both ends of the scraper (27) are provided with driving mechanisms. The frame (1) is symmetrically provided with isolation frames (6) on both sides. The driving mechanisms are respectively set in the two isolation frames (6). The driving mechanism includes a mounting block (42) and a first pinion (44) and a second pinion (37) rotatably mounted on the mounting block (42). The mounting block (42) is fixedly connected to the end of the scraper (27). The first pinion (44) and the second pinion (37) mesh with each other. A fourth motor (43) is also installed in the mounting block (42). The driving end of the fourth motor (43) is fixedly connected to the second pinion (37). A rack plate (24) is provided at the top of both isolation frames (6). The rack plate (24) is set above the bottom plate (16). The first pinion (44) meshes with the rack plate (24).

6. The solid waste hazardous harmless treatment device according to claim 1, characterized in that, A central shaft (32) is fixedly installed in the center of the rotating drum (9). Multiple electrical plates (33) are fixedly installed around the surface of the central shaft (32). A second rotating gear (22) is fixedly sleeved on the outer surface of the rotating drum (9). A support plate (10) is fixedly installed on one side of the incinerator (3). A linkage mechanism is provided on the support plate (10). The linkage mechanism is used to drive the second rotating gear (22) to rotate.

7. A solid waste hazardous harmless treatment device according to claim 6, characterized in that, The linkage mechanism includes a first rotating gear (23), a third motor (34) is fixedly installed on the support plate (10), a first sprocket (31) is fixedly connected to the drive end of the third motor (34), a rotating shaft (36) is provided below the rotating drum (9), a first rotating gear (23) is fixedly connected to the rotating shaft (36), a first sprocket (31) is also fixedly installed on the rotating shaft (36), a second chain (26) is sleeved between the two first sprockets (31), and the second rotating gear (22) meshes with the first rotating gear (23).

8. A solid waste hazardous harmless treatment device according to claim 7, characterized in that, One end of the rotating drum (9) is provided with a first mesh plate (30), and the central shaft (32) is rotatably installed in the first conveying pipe (4) through a fixed rod. The two ends of the rotating drum (9) are respectively provided with a first mesh plate (30) and a second mesh plate (35). The first mesh plate (30) is fixedly connected to the rotating drum (9), and the second mesh plate (35) is fixedly connected to the second conveying pipe (11). A fixed shaft (38) is provided on the side of the first mesh plate (30) away from the rotating drum (9), and a movable shaft (39) is provided on the side of the second mesh plate (35) close to the rotating drum (9). The fixed shaft (38) is fixedly connected to the inner wall of the first conveying pipe (4), and the movable shaft (39) is fixedly sleeved on the central shaft (32).

9. A treatment method for a solid waste hazardous harmless treatment device according to any one of claims 1-8, characterized in that, The following steps are included: S1: Solid waste is fed into the crushing box (2) from the inlet (5). The two crushing rollers (12) rotate relative to each other, crushing the solid waste into blocks. The small pieces will fall directly onto the partition (14) and slide down along the partition (14). The large pieces will fall onto the screen plate (13) and slide down along the screen plate (13) to the bottom plate (16). S2: The cutter (29) moves up and down, and the large solid pieces that fall onto the bottom plate (16) are processed again by the cutter (29) to cut them into smaller pieces; S3: In order to avoid the accumulation of waste on the bottom plate (16), the scraper (27) will move along the surface of the bottom plate (16) and clean the surface of the bottom plate (16) to push the secondary crushed waste off the surface of the bottom plate (16). S4: The waste will eventually enter the incinerator (3). The fuel in the incinerator (3) will be ignited and the waste will be incinerated. During the incineration process, the rotating fan (20) will rotate to open up the accumulated waste so that it can fully contact the air and fuel. The ash produced by the incineration can be cleaned out through the rotating door (21). S5: The smoke and dust generated during the incineration process will be directly conveyed forward along the first conveying pipe (4). When it is conveyed to the position of the rotating drum (9), the rotating drum (9) will drive the internal energized plate (33) to rotate. The rotating energized plate (33) has a guiding effect on the air, ensuring the smooth flow of smoke and dust. At the same time, the energized plate (33) is energized to ionize the smoke and dust, and oxidize and decompose the harmful substances in it. The first mesh plate (30) and the second mesh plate (35) can filter out the particulate matter in the smoke and dust. S6: The smoke and dust after being ionized by the rotating drum (9) are fed into the treatment drum (7) through the second conveying pipe (11). The treatment drum (7) contains a treatment liquid for treating the combustion gas. The treatment liquid reacts with the gas and the treated gas is finally discharged through the discharge pipe (8).

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