Continuous pyrolysis device for precious metal recovery
By designing a continuous pyrolysis device for precious metal recycling, the pyrolysis barrel, spiral blade and electromagnetic heating ring are used to achieve continuous pyrolysis of materials, which solves the problems of long shutdown and maintenance difficulties in existing devices, improves production efficiency and precious metal recycling quality, and simplifies the maintenance process.
Patent Information
- Application Number
- CN202421544192.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-02
AI Technical Summary
When existing pyrolysis devices are loaded in batches for pyrolysis recovery, the downtime is too long, which reduces production efficiency and processing volume per unit time, and is not easy to disassemble, making it difficult to thoroughly clean and maintain, increasing maintenance difficulty and cost.
A precious metal recycling continuous pyrolysis device is designed, including a pyrolysis barrel, spiral blade, electromagnetic heating ring and clamping structure, to realize the continuous and uniform transportation and pyrolysis of materials, simplifying the disassembly and maintenance process of the device.
Through continuous pyrolysis technology, the production efficiency and precious metal recycling quality are improved, the maintenance process is simplified, and maintenance costs and time are reduced.
Smart Images
Figure CN222938265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pyrolysis for precious metal recovery, in particular to a continuous pyrolysis device for precious metal recovery. Background Technique
[0002] With the rapid renewal of electronic products, electronic waste has become one of the fastest-growing municipal solid wastes in the world. It contains rich precious metal resources. Pyrolysis technology can effectively treat such complex wastes, recover precious metals from them, and reduce environmental pollution.
[0003] When the existing pyrolysis devices are in use, they need to be loaded batch by batch for pyrolysis recovery, resulting in too long downtime for loading. This process will cause the equipment to be in a non-working state for a long time, significantly reducing the overall production efficiency and the processing capacity per unit time. Secondly, the existing pyrolysis devices are not easy to disassemble, making it difficult to carry out thorough cleaning and maintenance. At the same time, during the pyrolysis process, ash, coke and other residues will be generated. Since the equipment is difficult to disassemble, it will be very difficult to clean these residues, resulting in reduced pyrolysis efficiency, decreased quality of pyrolysis products, and long-term accumulation may affect the heat transfer performance and service life of the equipment. When the device fails or needs regular maintenance, the difficulty of rapid disassembly means that maintenance personnel are difficult to intervene in a timely manner, and the maintenance process is complex and time-consuming, increasing the maintenance difficulty and cost.
[0004] Therefore, a continuous pyrolysis device for precious metal recovery is proposed. Content of the Utility Model
[0005] The main purpose of the utility model is to provide a continuous pyrolysis device for precious metal recovery, which can effectively solve the problems that batch loading for pyrolysis recovery leads to too long downtime for loading, resulting in reduced overall production efficiency and processing capacity per unit time, and the difficulty of disassembly makes it difficult to carry out thorough cleaning and maintenance, resulting in a complex and time-consuming maintenance process, increasing the maintenance difficulty and cost.
[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a continuous pyrolysis device for precious metal recovery, including a heat preservation cylinder, a pyrolysis cylinder is fixedly sleeved inside the heat preservation cylinder, one end of the pyrolysis cylinder is provided with a disc, a shaft rod is arranged inside the pyrolysis cylinder, a first motor is fixedly installed at one end of the disc, the output shaft of the first motor passes through the disc movably and is fixedly connected with the shaft rod, a spiral blade is fixedly connected to the surface of the shaft rod, and a plurality of electromagnetic heating coils are equidistantly arranged on the surface of the pyrolysis cylinder, and all the electromagnetic heating coils are located between the heat preservation cylinder and the pyrolysis cylinder.
[0007] Preferably, the disc is located on one side of the pyrolysis cylinder, and two first clamping blocks are equidistantly fixedly connected to the disc, and the two first clamping blocks and one end of the insulation cylinder are each provided with a first clamping groove, and the two first clamping blocks are movably arranged in the two first clamping grooves, and two second clamping grooves are equidistantly arranged at one end of the insulation cylinder, and the two first clamping blocks, the two second clamping blocks and the insulation cylinder are each provided with a third clamping groove, and a clamping rod is movably arranged in the third clamping groove of the two first clamping blocks, and the two clamping rods are fixedly connected to a fixing plate, and one end of the two fixing plates is fixedly connected to a spring, and one end of the two springs away from the fixing plate is respectively fixedly connected to the adjacent first clamping blocks, and the two clamping rods are respectively located in the two springs, and the two first clamping blocks are respectively movably clamped in the two third clamping grooves, and the two second clamping blocks are both movably clamped in the corresponding two first clamping grooves, and the two clamping rods are both movably clamped in the corresponding third clamping grooves.
[0008] Preferably, a crushing box is provided on the insulation cylinder, and two rotating shafts are equidistantly arranged in the crushing box, one end of the two rotating shafts are movably inserted through the crushing box and fixedly connected with gears, the two gear teeth are meshed with each other, and the two rotating shafts are rotatably connected to the inner wall of the crushing box at one end away from the gears, and a group of crushing teeth are fixedly sleeved on the two rotating shafts at equal distances, and the two groups of crushing teeth are staggered and meshed, and a second motor is fixedly installed at one end of the crushing box, and the second motor is movably inserted through the crushing box and fixedly connected to the adjacent rotating shaft, the lower end of the crushing box is communicated with a discharge pipe, the lower end of the discharge pipe is inserted through the insulation cylinder and is communicated with the pyrolysis cylinder, the upper end of the crushing box is communicated with a feeding pipe, and one end of the crushing box is fixedly connected with a protective cover, and the two gears are both located in the protective cover.
[0009] Preferably, a dust collector is provided on the insulation cylinder, the dust collector is connected to a gas collecting hood, the lower end of the gas collecting hood is connected to a plurality of exhaust pipes, the plurality of exhaust pipes are plugged through the insulation cylinder and are connected to the pyrolysis cylinder, and the plurality of exhaust pipes are respectively located between a plurality of electromagnetic heating coils.
[0010] Preferably, one end of the insulation cylinder is fixedly connected to a dust box, a discharge pipe is arranged in the dust box, the discharge pipe is communicated with the pyrolysis cylinder, both sides of the upper end of the dust box are communicated with air collecting hoods, the two air collecting hoods are communicated with air collecting pipes, the upper ends of the air collecting pipes are communicated with connecting pipes, the connecting pipes are communicated with the air collecting hoods at one end away from the air collecting pipes, both sides of the lower end of the dust box are fixedly connected with sliders, the lower end of the dust box is provided with a material receiving box, both sides of the upper end of the material receiving box are provided with slide grooves, the two slide grooves slide on two sliders respectively, a handle is fixedly connected to one end of the material receiving box, and four universal wheels are fixedly installed at equidistant intervals on the lower end of the material receiving box.
[0011] Preferably, two support frames are fixedly connected to the lower end of the heat preservation cylinder at equal intervals. A control panel is fixedly installed on one side of one of the support frames. The output ends of the control panel are electrically connected to the input ends of the electromagnetic heating coil, the first motor, the second motor, and the dust collector.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. By setting the pyrolysis cylinder and the spiral blade, the utility model can solve the problem that batch loading for pyrolysis recovery leads to too long downtime for loading, resulting in reduced overall production efficiency and throughput per unit time. By controlling the operation of the first motor at one end of the control disc, the shaft rod drives the spiral blade to rotate in the pyrolysis cylinder. Then, by controlling the operation of several electromagnetic heating coils, the materials in the pyrolysis cylinder undergo pyrolysis reaction. The heat preservation cylinder can prevent heat loss. Such a design realizes continuous and uniform conveying and pyrolysis recovery of materials, increases the contact area and efficiency of the pyrolysis reaction. The equidistant distribution of the electromagnetic heating coils ensures more precise and uniform temperature control during the pyrolysis process. At the same time, the feeding speed can be precisely controlled according to the specific requirements of the pyrolysis reaction, thereby regulating the residence time and pyrolysis degree of the materials in the pyrolysis cylinder, improving the pyrolysis efficiency and the quality of precious metal recovery, and effectively solving the problem that batch loading for pyrolysis recovery leads to too long downtime for loading, resulting in reduced overall production efficiency and throughput per unit time.
[0014] 2. By setting two second clamping blocks, two first clamping blocks, a first clamping groove, and three third clamping grooves, the utility model can solve the problem that difficult disassembly leads to difficult thorough cleaning and maintenance, resulting in a complex and time-consuming overhaul process and increased maintenance difficulty and cost. The two second clamping blocks are respectively movably inserted into the two first clamping blocks and the two first clamping grooves on the heat preservation cylinder. Such a design can clamp and fix the control disc. The two clamping rods are respectively movably clamped in the two first clamping blocks, the two second clamping blocks, and the three third clamping grooves on the heat preservation cylinder. Such a design can clamp and fix the two second clamping blocks. When it is necessary to clean and maintain the components inside the pyrolysis cylinder, by pulling the two clamping rods, the spring between the fixing piece and the first clamping block extends, so that the two clamping rods no longer clamp the two first clamping blocks, the two second clamping blocks, and the three third clamping grooves on the heat preservation cylinder. At this time, by pulling out the two second clamping blocks from the two first clamping blocks and the two first clamping grooves on the heat preservation cylinder, such a design adopts a clamping structure, without welding or bolt fastening, making the installation and maintenance of the components inside the pyrolysis cylinder relatively simple and fast. At the same time, when it is necessary to clean, inspect, or replace the components inside the pyrolysis cylinder, the staff can easily carry out disassembly and assembly operations, greatly reducing the maintenance time and cost, and effectively solving the problem that difficult disassembly leads to difficult thorough cleaning and maintenance, resulting in a complex and time-consuming overhaul process and increased maintenance difficulty and cost.
[0015] 3. The utility model, by providing a plurality of exhaust pipes, two gas collecting hoods and a dust-proof box, can help maintain the pressure balance inside the pyrolysis area, reduce the safety risks caused by gas accumulation, and prevent environmental pollution caused by dust diffusion during material collection. By controlling the operation of the dust collector, the plurality of equidistantly arranged exhaust pipes absorb the harmful gases generated during the pyrolysis process inside the pyrolysis cylinder. At the same time, the pyrolyzed materials are transported into the collection box through the discharge pipe. The provided dust-proof box can prevent the diffusion of dust during the discharging process. While discharging, the dust inside the dust-proof box is collected through the two gas collecting hoods. The air duct formed by the obstruction of the discharge pipe inside the dust-proof box will not suck in the pyrolyzed precious metals. Therefore, the dust flows through the two gas collecting hoods to the gas collecting pipe, and then through the gas collecting pipe and the connecting pipe to the gas gathering hood. Such a design helps maintain the pressure balance inside the pyrolysis area, reduces the safety risks caused by gas accumulation, and can collect dust at the same time, effectively preventing environmental pollution caused by dust diffusion.
[0016] The parts not involved in this device are the same as or can be implemented using the prior art. Description of the Drawings
[0017] Figure 1 It is a schematic diagram of the overall structure of the first perspective of a continuous pyrolysis device for precious metal recovery according to the utility model.
[0018] Figure 2 It is a schematic diagram of the overall structure of the second perspective of a continuous pyrolysis device for precious metal recovery according to the utility model.
[0019] Figure 3 It is a schematic diagram of the state where the collection box of a continuous pyrolysis device for precious metal recovery according to the utility model is pulled out.
[0020] Figure 4 It is a disassembled schematic diagram of the pyrolysis cylinder of a continuous pyrolysis device for precious metal recovery according to the utility model.
[0021] Figure 5 It is of a continuous pyrolysis device for precious metal recovery according to the utility model Figure 4 The enlarged view of A in it.
[0022] Figure 6 It is of a continuous pyrolysis device for precious metal recovery according to the utility model Figure 4 The enlarged view of B in it.
[0023] Figure 7 It is a cross-sectional view of a continuous pyrolysis device for precious metal recovery according to the utility model.
[0024] Figure 8 It is a cross-sectional view of the crushing box of a continuous pyrolysis device for precious metal recovery according to the utility model.
[0025] Figure 9 This is a schematic structural diagram of the crushing box of a continuous pyrolysis device for precious metal recovery according to the present utility model.
[0026] Figure 10 This is a schematic structural diagram of the heat preservation cylinder of a continuous pyrolysis device for precious metal recovery according to the present utility model.
[0027] Figure 11 This is a schematic structural diagram of the pyrolysis cylinder and the electromagnetic heating coil of a continuous pyrolysis device for precious metal recovery according to the present utility model.
[0028] Figure 12 This is a schematic structural diagram of the spiral blade of a continuous pyrolysis device for precious metal recovery according to the present utility model.
[0029] Figure 13 This is an enlarged view of the second clamping block of a continuous pyrolysis device for precious metal recovery according to the present utility model.
[0030] In the figure: 1. Heat preservation cylinder; 2. Pyrolysis cylinder; 3. Electromagnetic heating coil; 4. First motor; 5. Disc; 6. Shaft rod; 7. Spiral blade; 8. First clamping block; 9. Clamping rod; 10. Fixed plate; 11. Spring; 12. First clamping groove; 13. Second clamping groove; 14. Third clamping groove; 15. Discharge pipe; 16. Feeding pipe; 17. Crushing box; 18. Rotating shaft; 19. Crushing teeth; 20. Gear; 21. Second motor; 22. Feed pipe; 23. Protective cover; 24. Dust collector; 25. Exhaust pipe; 26. Dust-proof box; 27. Gas collecting hood; 28. Gas collecting pipe; 29. Gas gathering hood; 30. Slide block; 31. Slide groove; 32. Universal wheel; 33. Handle; 34. Support frame; 35. Control panel; 36. Connecting pipe; 37. Receiving box; 38. Second clamping block. Detailed implementation manners
[0031] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.
[0032] Such as Figure 1 - Figure 13As shown in the figure, a pyrolysis cylinder 2 is fixedly sleeved inside a heat preservation cylinder 1. One end of the pyrolysis cylinder 2 is provided with a disc 5. A shaft rod 6 is arranged inside the pyrolysis cylinder 2. One end of the disc 5 is fixedly installed with a first motor 4. The output shaft of the first motor 4 movably passes through the disc 5 and is fixedly connected to the shaft rod 6. The surface of the shaft rod 6 is fixedly connected with a spiral blade 7. A number of electromagnetic heating coils 3 are equidistantly arranged on the surface of the pyrolysis cylinder 2. All the electromagnetic heating coils 3 are located between the heat preservation cylinder 1 and the pyrolysis cylinder 2. By adopting the above technical solution: By controlling the operation of the first motor 4 at one end of the disc 5, the shaft rod 6 drives the spiral blade 7 to rotate inside the pyrolysis cylinder 2. Then, by controlling the operation of a number of electromagnetic heating coils 3, the materials inside the pyrolysis cylinder 2 are subjected to pyrolysis reaction. The provided heat preservation cylinder 1 can prevent heat energy from being lost. Such a design realizes the continuous and uniform conveying and mixing of the materials, increases the contact area and efficiency of the pyrolysis reaction. The equidistant distribution of the electromagnetic heating coils 3 ensures more precise and uniform temperature control during the pyrolysis process. At the same time, the feeding speed can be precisely controlled according to the specific requirements of the pyrolysis reaction, thereby regulating the residence time and pyrolysis degree of the materials inside the pyrolysis cylinder 2, improving the pyrolysis efficiency and the quality of precious metal recovery.
[0033] As Figure 1 - Figure 7As shown in the figure, the disc 5 is located on one side of the pyrolysis cylinder 2. Two first clamping blocks 8 are fixedly connected to the disc 5 at equal intervals. First clamping grooves 12 are provided at one end of both the two first clamping blocks 8 and the heat preservation cylinder 1. Second clamping blocks 38 are movably arranged in the two first clamping grooves 12. Two second clamping grooves 13 are provided at one end of the heat preservation cylinder 1 at equal intervals. Third clamping grooves 14 are provided on both the two first clamping blocks 8, the two second clamping blocks 38 and the heat preservation cylinder 1. Clamping rods 9 are movably arranged in the third clamping grooves 14 of the two first clamping blocks 8. Fixed pieces 10 are fixedly connected to both the two clamping rods 9. Springs 11 are fixedly connected to one end of both the two fixed pieces 10. One end of the two springs 11 away from the fixed pieces 10 is fixedly connected to the adjacent first clamping blocks 8 respectively. The two clamping rods 9 are respectively located in the two springs 11. The two first clamping blocks 8 are respectively movably clamped in the two third clamping grooves 14. The two second clamping blocks 38 are respectively movably clamped in the corresponding two first clamping grooves 12. The two clamping rods 9 are respectively movably clamped in the corresponding third clamping grooves 14. By adopting the above technical solution: The two second clamping blocks 38 are respectively movably inserted into the two first clamping grooves 12 on the two first clamping blocks 8 and the heat preservation cylinder 1. Such a design can clamp and fix the disc 5. The two clamping rods 9 are respectively movably clamped in the three third clamping grooves 14 on the two first clamping blocks 8, the two second clamping blocks 38 and the heat preservation cylinder 1. Such a design can clamp and fix the two second clamping blocks 38. When the components inside the pyrolysis cylinder 2 need to be cleaned and maintained, by pulling the two clamping rods 9, the springs 11 between the fixed pieces 10 and the first clamping blocks 8 are extended, so that the two clamping rods 9 no longer clamp the three third clamping grooves 14 on the two first clamping blocks 8, the two second clamping blocks 38 and the heat preservation cylinder 1. At this time, by pulling out the two second clamping blocks 38 from the two first clamping grooves 12 on the two first clamping blocks 8 and the heat preservation cylinder 1, such a design adopts a clamping structure, without welding or bolt fastening, making the installation and maintenance of the components inside the pyrolysis cylinder 2 relatively simple and fast. At the same time, when the components inside the pyrolysis cylinder 2 need to be cleaned, inspected or replaced, the staff can easily carry out the disassembly and assembly operations, greatly reducing the maintenance time and cost.
[0034] As Figure 1 - Figure 9As shown in the figure, a crushing box 17 is provided on the heat preservation cylinder 1. Two rotating shafts 18 are equidistantly arranged in the crushing box 17. One end of each of the two rotating shafts 18 is movably inserted through the crushing box 17 and fixedly connected with a gear 20. The teeth of the two gears 20 are meshed with each other. The other ends of the two rotating shafts 18 away from the gears 20 are respectively rotatably connected to the inner wall of the crushing box 17. A group of crushing teeth 19 are fixedly sleeved on each of the two rotating shafts 18 at equal intervals. The two groups of crushing teeth 19 are meshed staggeredly. A second motor 21 is fixedly installed at one end of the crushing box 17. The second motor 21 is movably inserted through the crushing box 17 and fixedly connected with the adjacent rotating shaft 18. The lower end of the crushing box 17 is communicated with a feeding pipe 16. The lower end of the feeding pipe 16 passes through the heat preservation cylinder 1 and is communicated with the pyrolysis cylinder 2. The upper end of the crushing box 17 is communicated with a feeding pipe 22. One end of the crushing box 17 is fixedly connected with a protective cover 23. The two gears 20 are both located in the protective cover 23. By adopting the above technical scheme: by controlling the second motor 21 to work, one of the rotating shafts 18 in the crushing box 17 rotates, and at the same time one of the gears 20 rotates synchronously. Through the meshing transmission between one of the gears 20 and the other gear 20, the other rotating shaft 18 rotates synchronously. At the same time, the two groups of crushing teeth 19 are meshed staggeredly. The provided protective cover 23 can play a protective role for the two gears 20. The provided feeding pipe 22 is convenient for putting the materials to be pyrolyzed into the crushing box for crushing. The crushed materials flow into the pyrolysis cylinder 2 through the feeding pipe 16 for pyrolysis.
[0035] As Figure 4 - Figure 7 shown in the figure, a dust collector 24 is provided on the heat preservation cylinder 1. The dust collector 24 is communicated with an air collecting hood 29. The lower end of the air collecting hood 29 is communicated with a plurality of exhaust pipes 25. The plurality of exhaust pipes 25 pass through the heat preservation cylinder 1 and are all communicated with the pyrolysis cylinder 2. And the plurality of exhaust pipes 25 are respectively located between a plurality of electromagnetic heating coils 3. By adopting the above technical scheme: by controlling the dust collector 24 to work, the plurality of exhaust pipes 25 absorb the harmful gases generated during the pyrolysis process in the pyrolysis cylinder 2. Such a design helps to maintain the pressure balance inside the pyrolysis area and reduce the safety risks caused by gas accumulation. The layout of the plurality of exhaust pipes 25 is located between the electromagnetic heating coils 3. This design can effectively utilize the rising hot air flow during the pyrolysis process, promote the further pyrolysis or combustion of the unreacted gases and vapors, and reduce pollutant emissions.
[0036] As Figure 3 - Figure 7As shown in the figure, one end of the heat preservation cylinder 1 is fixedly connected with a dust-proof box 26. An outlet pipe 15 is arranged in the dust-proof box 26. The outlet pipe 15 is connected to the pyrolysis cylinder 2 in a communicating way. Both sides of the upper end of the dust-proof box 26 are connected to a gas collection hood 27 in a communicating way. A gas collection pipe 28 is connected to both gas collection hoods 27 in a communicating way. The upper end of the gas collection pipe 28 is connected to a connecting pipe 36 in a communicating way. One end of the connecting pipe 36 away from the gas collection pipe 28 is connected to the gas gathering hood 29 in a communicating way. Both sides of the lower end of the dust-proof box 26 are fixedly connected with sliders 30. A material receiving box 37 is arranged at the lower end of the dust-proof box 26. Both sides of the upper end of the material receiving box 37 are provided with sliding grooves 31. The two sliding grooves 31 slide on the two sliders 30 respectively. One end of the material receiving box 37 is fixedly connected with a handle 33. Four universal wheels 32 are fixedly installed at equal intervals at the lower end of the material receiving box 37. By adopting the above technical scheme: The pyrolyzed materials are conveyed into the material receiving box 37 through the outlet pipe 15. The arranged dust-proof box 26 can prevent the diffusion of dust during the discharging process. While discharging, the dust in the dust-proof box 26 is collected by the two gas collection hoods 27. The dust flows to the gas collection pipe 28 through the two gas collection hoods 27. The dust then flows through the connecting pipe 36 through the gas collection pipe 28 and flows into the gas gathering hood 29. The cooperation of the two sliding grooves 31 and the two sliders 30 is arranged. Such a design can make the material receiving box 37 and the dust-proof box 26 conduct sealed material collection to prevent dust diffusion. When the materials in the material receiving box 37 are full and need to be transferred, by pulling the handle 33, the two sliding grooves 31 slide on the two sliders 30 respectively. At the same time, the four universal wheels 32 at the lower end of the material receiving box 37 rotate. This can facilitate the movement and transfer of the material receiving box 37.
[0037] Two support frames 34 are fixedly connected at equal intervals at the lower end of the heat preservation cylinder 1. A control panel 35 is fixedly installed on one side of one of the support frames 34. The output ends of the control panel 35 are electrically connected to the input ends of the electromagnetic heating coil 3, the first motor 4, the second motor 21, and the dust collector 24.
[0038] It should be noted that the present utility model is a continuous pyrolysis device for precious metal recovery. When in use, first place the device at a designated position, and connect the electromagnetic heating coil 3, the first motor 4, the second motor 21, the dust collector 24, and the control panel 35 to an external power supply;
[0039] By putting the materials to be pyrolyzed and recovered into the feed pipe 22, the materials flow into the crushing box 17. At this time, by operating and controlling the control panel 35, control the second motor 21 to work, so that one rotating shaft 18 in the crushing box 17 rotates, and at the same time one gear 20 rotates synchronously. Through the meshing transmission of one gear 20 and the second gear 20, the second rotating shaft 18 rotates synchronously. At the same time, the two groups of crushing teeth 19 are meshed in a staggered manner to crush the materials in the crushing box 17. The crushed materials flow into the pyrolysis cylinder 2 through the blanking pipe 16 for pyrolysis. The arranged protective cover 23 can play a protective role for the two gears 20;
[0040] When the material flows into the pyrolysis cylinder 2, by controlling the operation of the first motor 4 at one end of the disc 5, the shaft rod 6 drives the spiral blade 7 to rotate in the pyrolysis cylinder 2. Then, by controlling the operation of a number of electromagnetic heating coils 3, the material in the pyrolysis cylinder 2 undergoes a pyrolysis reaction. The heat preservation cylinder 1 provided can prevent heat energy from being lost. Such a design realizes the continuous and uniform transportation and mixing of the material, increases the contact area and efficiency of the pyrolysis reaction. The equidistant distribution of the electromagnetic heating coils 3 ensures more precise and uniform temperature control during the pyrolysis process. At the same time, the feeding speed can be precisely controlled according to the specific requirements of the pyrolysis reaction, thereby regulating the residence time and pyrolysis degree of the material in the pyrolysis cylinder 2, improving the pyrolysis efficiency and the quality of precious metal recovery. At the same time, the waste gas generated during the pyrolysis process, by controlling the operation of the dust collector 24, enables a number of exhaust pipes 25 to absorb the harmful gases generated during the pyrolysis process in the pyrolysis cylinder 2. Such a design helps to maintain the pressure balance inside the pyrolysis area and reduce the safety risks caused by gas accumulation. The layout of the number of exhaust pipes 25 is located between the electromagnetic heating coils 3. This design can effectively utilize the rising hot air flow during the pyrolysis process to promote the further pyrolysis or combustion of the unreacted gases and vapors, reducing pollutant emissions;
[0041] When the material is pyrolyzed, it is transported into the receiving box 37 through the discharge pipe 15. At the same time, the dust-proof box 26 provided can prevent the diffusion of dust during the discharging process. While discharging, the dust in the dust-proof box 26 is collected by two air collecting hoods 27. By the operation of the dust collector 24, the dust flows through the two air collecting hoods 27 to the air collecting pipe 28, and then the dust flows through the air collecting pipe 28 through the connecting pipe 36, enabling the dust to flow into the air gathering hood 29. The dust in the air gathering hood 29 is sucked by the dust collector 24 for dust collection. The cooperation of the two sliding grooves 31 and the two sliders 30 is provided. Such a design can make the receiving box 37 and the dust-proof box 26 conduct sealed material collection to prevent dust diffusion. When the material in the receiving box 37 is full and needs to be transferred, by pulling the handle 33, the two sliding grooves 31 slide on the two sliders 30 respectively, and at the same time, the four universal wheels 32 at the lower end of the receiving box 37 rotate, which can facilitate the movement and transfer of the receiving box 37;
[0042] When it is necessary to clean and maintain the components inside the pyrolysis cylinder 2, by pulling the two clamping rods 9, the spring 11 between the fixing piece 10 and the first clamping block 8 extends, so that the two clamping rods 9 no longer clamp the two first clamping blocks 8, the two second clamping blocks 38 and the three third clamping grooves 14 on the heat preservation cylinder 1. At this time, by pulling out the two second clamping blocks 38 from the two first clamping blocks 8 and the two first clamping grooves 12 on the heat preservation cylinder 1, the disc 5 and other connected components can be pulled out at this time. At the same time, the two first clamping blocks 8 slide out of the two second clamping grooves 13 respectively. This design adopts a clamping structure, without welding or bolt fastening, making the installation and maintenance of the components inside the pyrolysis cylinder 2 relatively simple and fast. At the same time, when it is necessary to clean, inspect or replace the components inside the pyrolysis cylinder 2, the staff can easily carry out the disassembly and assembly operations, greatly reducing the maintenance time and cost. The two support frames 34 provided can play a role in supporting and fixing the heat preservation cylinder 1.
[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A precious metal recovery continuous pyrolysis device, comprising a heat preservation cylinder (1), characterized in that: A pyrolysis cylinder (2) is fixedly sleeved inside the heat preservation cylinder (1), a disc (5) is arranged at one end of the pyrolysis cylinder (2), a shaft (6) is arranged inside the pyrolysis cylinder (2), a first motor (4) is fixedly installed at one end of the disc (5), an output shaft of the first motor (4) is movably inserted through the disc (5) and fixedly connected to the shaft (6), a spiral blade (7) is fixedly connected to the surface of the shaft (6), and a plurality of electromagnetic heating coils (3) are equidistantly arranged on the surface of the pyrolysis cylinder (2), and the plurality of electromagnetic heating coils (3) are all located between the heat preservation cylinder (1) and the pyrolysis cylinder (2).
2. A precious metal recovery continuous pyrolysis device according to claim 1, characterized in that: The disc (5) is located on one side of the pyrolysis cylinder (2); two first clamping blocks (8) are equidistantly fixedly connected to the disc (5); the two first clamping blocks (8) and one end of the heat-insulating cylinder (1) are each provided with a first clamping groove (12); a second clamping block (38) is movably arranged in the two first clamping grooves (12); two second clamping grooves (13) are equidistantly arranged in one end of the heat-insulating cylinder (1); the two first clamping blocks (8) and the two second clamping blocks (38) and the heat-insulating cylinder (1) are each provided with a third clamping groove (14); a clamping rod (38) is movably arranged in the third clamping groove (14) of the two first clamping blocks (8). 9), the two clamping rods (9) are fixedly connected with a fixing plate (10), one end of the two fixing plates (10) is fixedly connected with a spring (11), the two springs (11) are fixedly connected with adjacent first clamping blocks (8) at one end away from the fixing plate (10), the two clamping rods (9) are respectively located in the two springs (11), the two first clamping blocks (8) are respectively movably clamped in the two third clamping grooves (14), the two second clamping blocks (38) are both movably clamped in the corresponding two first clamping grooves (12), and the two clamping rods (9) are both movably clamped in the corresponding third clamping grooves (14).
3. A precious metal recovery continuous pyrolysis device according to claim 1, characterized in that: The heat-insulating cylinder (1) is provided with a crushing box (17), and two rotating shafts (18) are equidistantly arranged in the crushing box (17). One end of the two rotating shafts (18) is movably inserted through the crushing box (17) and fixedly connected to a gear (20), and the teeth of the two gears (20) are meshed with each other. The ends of the two rotating shafts (18) away from the gears (20) are respectively rotatably connected to the inner wall of the crushing box (17), and a group of crushing teeth (19) are fixedly sleeved on the two rotating shafts (18) at an equidistant distance. The two groups of crushing teeth (19) are staggered and meshed with each other. A second motor (21) is fixedly mounted on one end of the crushing box (17), and the second motor (21) is movably plugged through the crushing box (17) and fixedly connected to an adjacent rotating shaft (18). The lower end of the crushing box (17) is connected to a feed pipe (16), and the lower end of the feed pipe (16) is inserted through the heat-insulating cylinder (1) and connected to the pyrolysis cylinder (2). The upper end of the crushing box (17) is connected to a feed pipe (22). A protective cover (23) is fixedly connected to one end of the crushing box (17), and the two gears (20) are both located in the protective cover (23).
4. A precious metal recovery continuous pyrolysis device according to claim 3, characterized in that: The heat preservation cylinder (1) is provided with a dust collector (24), the dust collector (24) is connected to a gas collecting hood (29), the lower end of the gas collecting hood (29) is connected to a plurality of exhaust pipes (25), the plurality of exhaust pipes (25) are plugged through the heat preservation cylinder (1) and are connected to the pyrolysis cylinder (2), and the plurality of exhaust pipes (25) are respectively located between a plurality of electromagnetic heating coils (3).
5. A precious metal recovery continuous pyrolysis device according to claim 4, characterized in that: One end of the heat preservation cylinder (1) is fixedly connected to a dustproof box (26), a discharge pipe (15) is arranged in the dustproof box (26), the discharge pipe (15) is connected to the pyrolysis cylinder (2), both sides of the upper end of the dustproof box (26) are connected to gas collecting hoods (27), the two gas collecting hoods (27) are connected to gas collecting pipes (28), the upper ends of the gas collecting pipes (28) are connected to connecting pipes (36), and the connecting pipes (36) are far away from the gas collecting pipes (28). The end is connected to the gas collecting cover (29), the lower end of the dust box (26) is fixedly connected with sliders (30) on both sides, the lower end of the dust box (26) is provided with a material receiving box (37), the upper end of the material receiving box (37) is provided with slide grooves (31) on both sides, the two slide grooves (31) slide on the two sliders (30) respectively, one end of the material receiving box (37) is fixedly connected with a handle (33), and the lower end of the material receiving box (37) is equidistantly fixedly installed with four universal wheels (32).
6. A precious metal recovery continuous pyrolysis device according to claim 5, characterized in that: The lower end of the heat preservation cylinder (1) is fixedly connected to two support frames (34) at equal distances, and a control panel (35) is fixedly mounted on one side of one of the support frames (34), and the output end of the control panel (35) is electrically connected to the input end of the electromagnetic heating coil (3), the first motor (4), the second motor (21), and the dust collector (24).