Solid waste crushing device for hazardous waste treatment

Abstract

The utility model discloses a kind of solid waste crushing devices for hazardous waste treatment, it is related to hazardous waste treatment technical field, including layer board, knife box is arranged in layer board interior, and crushing mechanism is arranged in the interior of knife box, pusher hopper is arranged in the top of knife box, and transmission shaft is arranged in the interior of pusher hopper, multiple groups of feeding plate are arranged on the outside of transmission shaft, and pusher hopper side is provided with pusher box, the inner wall both sides of pusher hopper interior at pusher box junction place are welded with baffle, pusher mechanism is arranged in the interior of pusher box, and intermediate hopper is arranged in the top of pusher hopper, upper valve is arranged on the top of intermediate hopper, and feed hopper is arranged in the top of upper valve, and pusher hopper bottom is located below layer board and is provided with discharge hopper, movable movable plate is arranged on the top of discharge hopper, and lower valve is arranged in the bottom of discharge hopper, and chute is arranged in the bottom of lower valve, the utility model improves the processing efficiency and safety of solid waste crushing device, and provide strong support for the efficient, environmental protection processing of hazardous waste.

Description

Technical Field

[0001] This utility model relates to the field of hazardous waste treatment technology, and in particular to a solid waste crushing device for hazardous waste treatment. Background Technology

[0002] Hazardous waste treatment is a complex and challenging task, requiring not only advanced and efficient technology but also ensuring operational safety. Traditional hazardous waste treatment methods, such as landfill and incineration, often pose risks of environmental pollution and secondary pollution. Solid waste pulverization technology, as a pretreatment method, reduces waste volume and increases surface area, providing favorable conditions for subsequent physical, chemical, or biological treatment, thereby improving overall treatment efficiency. As a key piece of equipment in the hazardous waste treatment process, the performance and efficiency of solid waste pulverization devices directly affect the effectiveness of the entire treatment process. However, existing solid waste pulverization devices for hazardous waste treatment have some structural shortcomings.

[0003] Traditional feeder designs often overlook the diversity of material properties, resulting in poor performance in handling hazardous waste with high viscosity and moisture content. This can easily lead to blockages during the feeding process, affecting continuous operation. Furthermore, the intermediate hopper can generate sparks due to friction and impact during crushing, which can easily cause an explosion. However, the nitrogen injection method in existing devices is often relatively simple and lacks a precise control system, leading to uneven nitrogen distribution. At the same time, the pressure difference inside and outside the crushing chamber and the scouring effect of the material can easily damage the seals, causing dust and exhaust gas leaks, polluting the environment, and endangering the health of operators. Utility Model Content

[0004] This utility model proposes a solid waste crushing device for hazardous waste treatment, which solves the problems of frequent clogging, insufficient safety, and inadequate sealing structure in existing solid waste crushing devices for hazardous waste treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A solid waste crushing device for hazardous waste treatment includes a shelf, a blade box inside the shelf, a crushing mechanism inside the blade box, a pusher hopper at the top of the blade box, a drive shaft inside the pusher hopper, multiple sets of feeding plates outside the drive shaft, a pusher box on the side of the pusher hopper, baffles welded to both sides of the inner wall of the pusher hopper at the connection point with the pusher box, a pusher mechanism inside the pusher box, an intermediate hopper at the top of the pusher hopper, multiple sets of adjustable nitrogen nozzles on the inner side of the intermediate hopper, an upper valve above the intermediate hopper, a feed hopper at the top of the upper valve, a discharge hopper at the bottom of the blade box below the shelf, a movable plate above the discharge hopper, a lower valve at the bottom of the discharge hopper, and a chute at the bottom of the lower valve.

[0007] Preferably, the crushing mechanism includes crushing rollers and a first drive motor, and two sets of crushing rollers are arranged inside the cutter box, and the first drive motor is arranged outside the cutter box, and the output end of the first drive motor is connected to the crushing rollers to form a crushing structure.

[0008] Preferably, a second drive motor is provided on the outside of the pusher hopper, and the output end of the second drive motor is connected to the transmission shaft.

[0009] Preferably, the pushing mechanism includes a chute, a pushing block, a first lead screw, a third drive motor, and a hydraulic telescopic rod. The third drive motor is provided on the top of the pushing box, the first lead screw is provided inside the pushing box, and the output end of the third drive motor is connected to the first lead screw. The chute is provided on both sides inside the pushing box, and a pushing block matching the chute is provided on the outside of the first lead screw in a sliding connection to form a pushing structure.

[0010] Preferably, an inspection door is connected to the outside of the pusher box via a pivot, and a rubber pad is provided between the inspection door and the middle of the pusher box. Hydraulic telescopic rods are provided on both sides of the inspection door, and an inspection plate is provided on the outside of the pusher box below the inspection door. The pusher box and the pusher hopper are connected by welding of side plates.

[0011] Preferably, a connecting pipe is provided on the outer side of the intermediate hopper, and a flange is provided on the outer side of the connecting pipe.

[0012] Preferably, a guide rail groove matching the movable plate is provided above the discharge hopper, and multiple sets of material inlets are provided inside the movable plate. A screw hole is provided inside the side of the movable plate at one end, and a matching second lead screw is provided inside the screw hole. A fourth drive motor is provided outside the discharge hopper, and the output end of the fourth drive motor is connected to the second lead screw.

[0013] Preferably, a support frame is provided on the outside of the lower valve, and a fireproof gate is provided in the middle of the chute.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This solid waste crushing device for hazardous waste treatment has a drive shaft inside the pusher hopper, with multiple sets of feeding plates on the outside of the drive shaft, driven by a second drive motor. This effectively reduces the risk of blockage and improves the material throughput. Secondly, the material discharge structure inside the pusher box is driven by a third drive motor to move the pusher block up and down inside the chute via a first lead screw. The baffles inside the pusher box effectively prevent the pusher block from getting stuck, further increasing the material throughput. Additionally, a movable plate is installed above the discharge hopper, and the crushing structure inside the cutter box ensures more thorough crushing and higher efficiency, while also effectively reducing blockage and improving continuous operation capability.

[0016] 2. The inner side of the intermediate hopper is equipped with multiple sets of adjustable nitrogen nozzles, and the outer side of the intermediate hopper is equipped with a connecting pipe, which connects to an external nitrogen generator. The multiple nitrogen nozzles in the intermediate hopper ensure that the nitrogen can be evenly distributed. At the same time, the nitrogen pipeline is cleaned and maintained regularly to prevent the normal flow of nitrogen due to pipeline blockage. This effectively prevents the explosion caused by sparks generated by friction and impact during the crushing of hazardous waste, thus improving safety performance.

[0017] 3. Rubber pads are installed in the middle of the inspection door and the pusher box. The pusher box and the pusher hopper are connected by welding side plates, and flanges are installed on the outside of the connecting pipe. By adopting a double sealing structure, dust leakage is effectively blocked and the sealing performance is improved. At the same time, the flange ensures the stability of the connecting pipe when connected to the external nitrogen generator, effectively preventing exhaust gas leakage and improving the sealing performance. Secondly, hydraulic telescopic rods are installed on both sides of the inspection door, using high-performance sealing materials to improve the sealing performance of the inspection door and prevent exhaust gas leakage. At the same time, the hydraulic telescopic rods optimize the opening structure of the inspection door, making it easy and flexible to operate and convenient for maintenance personnel to perform maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0020] Figure 3 This is a schematic diagram of the nitrogen nozzle structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the exploded structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the material pushing mechanism of this utility model.

[0023] Figure 6 This is a schematic diagram of the movable plate structure of this utility model.

[0024] Labels in the diagram: 1. Shelf; 2. Knife box; 3. Pusher hopper; 4. Drive shaft; 5. Feeding plate; 6. Pusher box; 7. Intermediate hopper; 8. Nitrogen nozzle; 9. Upper valve; 10. Feed hopper; 11. Discharge hopper; 12. Movable plate; 13. Lower valve; 14. Chute; 15. Crushing roller; 16. First drive motor; 17. Second drive motor; 18. Slide chute; 19. Pusher block; 20. First lead screw; 21. Third drive motor; 22. Hydraulic telescopic rod; 23. Inspection plate; 24. Rotating shaft; 25. Inspection door; 26. Rubber pad; 27. Side plate; 28. Connecting pipe; 29. ​​Flange; 30. Guide rail groove; 31. Feed port; 32. Screw hole; 33. Second lead screw; 34. Fourth drive motor; 35. Support frame; 36. Fireproof gate; 271. Stop bar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-6 This utility model provides a technical solution: a solid waste crushing device for hazardous waste treatment, including a shelf 1, a blade box 2 inside the shelf 1, a crushing mechanism inside the blade box 2, a pusher hopper 3 on the top of the blade box 2, a drive shaft 4 inside the pusher hopper 3, multiple sets of feeding plates 5 on the outside of the drive shaft 4, and a pusher box 6 on the side of the pusher hopper 3. Inside the pusher hopper 3, baffles 271 are welded to both sides of the inner wall at the connection point with the pusher box 6. The baffles 271 are protruding along the moving path of the pusher block 19 in the pusher mechanism, just enough to keep the pusher block 19 and the pusher box 6 from moving. The gaps between the walls are blocked to effectively prevent waste material from getting stuck in the gaps when there are no baffles, which would cause the equipment to stop working. The pusher box 6 is equipped with a pusher mechanism, and the top of the pusher hopper 3 is equipped with an intermediate hopper 7. The inner side of the intermediate hopper 7 is equipped with multiple sets of adjustable nitrogen nozzles 8, and the upper valve 9 is equipped above the intermediate hopper 7. The feed hopper 10 is equipped above the upper valve 9, and the bottom of the knife box 2 is located below the shelf 1 and is equipped with a discharge hopper 11. The upper part of the discharge hopper 11 is equipped with a movable plate 12, and the bottom of the discharge hopper 11 is equipped with a lower valve 13. The bottom of the lower valve 13 is equipped with a chute 14.

[0027] Reference Figure 4The crushing mechanism includes a crushing roller 15 and a first drive motor 16. Two sets of crushing rollers 15 are arranged inside the cutter box 2, and the first drive motor 16 is arranged outside the cutter box 2. The output end of the first drive motor 16 is connected to the crushing roller 15 to form a crushing structure.

[0028] Reference Figure 2 , Figure 5 , Figure 6 A second drive motor 17 is provided on the outside of the pusher hopper 3, and the output end of the second drive motor 17 is connected to the transmission shaft 4; the pusher mechanism includes a slide groove 18, a pusher block 19, a first lead screw 20, a third drive motor 21, and a hydraulic telescopic rod 22, and the third drive motor 21 is provided on the top of the pusher box 6. The first lead screw 20 is provided inside the pusher box 6, and the output end of the third drive motor 21 is connected to the first lead screw 20. Slide grooves 18 are provided on both sides inside the pusher box 6, and pusher blocks 19 matching the slide grooves 18 are provided on the outside of the first lead screw 20 to form a pusher structure; a guide rail groove 30 matching the movable plate 12 is provided above the discharge hopper 11, and multiple sets of material inlets 31 are provided inside the movable plate 12. A screw hole 32 is provided inside the side of one end of the movable plate 12, and a matching second lead screw 33 is provided inside the screw hole 32. A fourth drive motor 34 is provided on the outside of the discharge hopper 11, and the output end of the fourth drive motor 34 is connected to the second lead screw 33.

[0029] In practical implementation, a solid waste crushing device for hazardous waste treatment operates as follows: First, the hazardous waste is placed inside the feed hopper 10 and enters the intermediate hopper 7. Next, the upper valve 9 is closed, and nitrogen is introduced through a nitrogen generator connected to the connecting pipe 28. Multiple nitrogen nozzles 8 in the intermediate hopper 7 uniformly fill the hopper with nitrogen, effectively preventing explosions caused by sparks generated during the crushing process due to friction and impact, thus improving safety. Then, the second drive motor 17 is started, driving the transmission shaft 4 and the outer feeding plate 5 to rotate, increasing the material throughput inside the pusher hopper 3. Finally, the first drive motor 16 is started, driving two sets of crushing rollers 15 to crush the solid waste inside the cutter box 2. At the same time, the third drive motor 21 is started, which drives the first lead screw 20 to move the pusher block 19 up and down inside the chute 18. The baffle 271 effectively prevents waste material from blocking the pusher block 19, resulting in a higher material throughput and improved crushing efficiency. The fourth drive motor 34 drives the second lead screw 33 to move the movable plate 12 inside the guide rail groove 30, effectively sealing the bottom of the cutter box 2. Smaller pieces are crushed and enter the discharge hopper 11 through the feed inlet 31. After crushing, the crushed material is slid into the discharge hopper 11 by moving the movable plate 12. The lower valve 13 is opened, and the material enters the chute 14, improving production efficiency and effectively reducing blockage. Through the above operations, the continuous operation capability, processing capacity, safety, and efficiency of the equipment are improved.

[0030] Reference Figure 1 , Figure 3 , Figure 5 The outer side of the pusher box 6 is connected to an inspection door 25 via a pivot 24, and a rubber pad 26 is provided between the inspection door 25 and the middle of the pusher box 6. Hydraulic telescopic rods 22 are provided on both sides of the inspection door 25, and an inspection plate 23 is provided below the inspection door 25 on the outer side of the pusher box 6. The pusher box 6 and the pusher hopper 3 are welded together via side plates 27. A connecting pipe 28 is provided on the outer side of the middle hopper 7, and a flange 29 is provided on the outer side of the connecting pipe 28. A support frame 35 is provided on the outer side of the lower valve 13, and a fireproof gate 36 is provided in the middle of the chute 14.

[0031] In practical implementation, the solid waste crushing device for hazardous waste treatment is designed for safety and sealing. A rubber gasket 26 is installed between the inspection door 25 and the middle of the pusher box 6. The pusher box 6 and the pusher hopper 3 are welded together via side plates 27, employing a double-sealing structure to effectively prevent dust leakage and improve sealing performance. Simultaneously, the connecting pipe 28 is externally connected via flange 29, ensuring the stability of the connecting pipe 28 when connected to an external nitrogen generator, effectively preventing exhaust gas leakage. Furthermore, when the equipment is running, the upper valve 9 opens, allowing solid waste to enter the cutter box 2; when the equipment stops running, the upper valve 9 closes, preventing solid waste from continuing to enter the cutter box 2. This ensures both the safety of the equipment and its sealing performance. The operation of the equipment ensures its normal functioning and prevents operators from coming into contact with the running parts. Simultaneously, the closed lower valve 13 ensures the internal sealing of the equipment. The fireproof gate 36 is primarily used to protect the safety of operators. When equipment malfunctions or operators need to approach the equipment, the fireproof gate 36 can be quickly closed to prevent danger. Furthermore, the fireproof gate 36 reduces the impact of noise and dust generated during equipment operation on operators. Through these operations, the safety and sealing of the solid waste crushing device are improved, providing strong support for the efficient and environmentally friendly treatment of hazardous waste.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A solid waste crushing device for hazardous waste treatment, comprising a shelf (1), characterized in that, The shelf (1) is equipped with a knife box (2), and the knife box (2) is equipped with a crushing mechanism. The top of the knife box (2) is equipped with a pusher hopper (3), and the pusher hopper (3) is equipped with a drive shaft (4). Multiple sets of feeding plates (5) are arranged on the outside of the drive shaft (4). The pusher hopper (3) is equipped with a pusher box (6) on the side. The pusher hopper (3) is equipped with baffles (271) welded on both sides of the inner wall at the connection of the pusher box (6). The pusher box (6) is equipped with a pushing mechanism. The top is provided with an intermediate hopper (7), and the inner side of the intermediate hopper (7) is provided with multiple sets of adjustable nitrogen nozzles (8). An upper valve (9) is provided above the intermediate hopper (7), and a feed hopper (10) is provided on the top of the upper valve (9). A discharge hopper (11) is provided at the bottom of the knife box (2) below the shelf (1). A movable plate (12) is provided above the discharge hopper (11), and a lower valve (13) is provided at the bottom of the discharge hopper (11). A chute (14) is provided at the bottom of the lower valve (13).

2. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, The crushing mechanism includes a crushing roller (15) and a first drive motor (16). The inside of the cutter box (2) is provided with two sets of crushing rollers (15), and the outside of the cutter box (2) is provided with a first drive motor (16). The output end of the first drive motor (16) is connected to the crushing roller (15) to form a crushing structure.

3. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, A second drive motor (17) is provided on the outside of the pusher hopper (3), and the output end of the second drive motor (17) is connected to the transmission shaft (4).

4. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, The pushing mechanism includes a chute (18), a pushing block (19), a first lead screw (20), a third drive motor (21), and a hydraulic telescopic rod (22). The third drive motor (21) is provided on the top of the pushing box (6). The first lead screw (20) is provided inside the pushing box (6). The output end of the third drive motor (21) is connected to the first lead screw (20). The chute (18) is provided on both sides inside the pushing box (6). The pushing block (19) matching the chute (18) is provided on the outside of the first lead screw (20) and is slidably connected to form a pushing structure.

5. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, The outer side of the pusher box (6) is connected to an inspection door (25) via a pivot (24), and a rubber pad (26) is provided between the inspection door (25) and the pusher box (6). Hydraulic telescopic rods (22) are provided on both sides of the inspection door (25), and an inspection plate (23) is provided on the outer side of the pusher box (6) below the inspection door (25). The pusher box (6) and the pusher hopper (3) are welded together via a side plate (27).

6. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, A connecting pipe (28) is provided on the outside of the intermediate bucket (7), and a flange (29) is provided on the outside of the connecting pipe (28).

7. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, The discharge hopper (11) is provided with a guide rail groove (30) that matches the movable plate (12) above it, and the movable plate (12) is provided with multiple sets of material inlets (31) inside. One end of the movable plate (12) is provided with a screw hole (32) inside, and a matching second lead screw (33) is provided inside the screw hole (32). The discharge hopper (11) is provided with a fourth drive motor (34) outside, and the output end of the fourth drive motor (34) is connected to the second lead screw (33).

8. The solid waste crushing device for hazardous waste treatment according to claim 1, characterized in that, A support frame (35) is provided on the outside of the lower valve (13), and a fireproof gate (36) is provided in the middle of the chute (14).

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