Anode heat preservation material suction device and method

Abstract

The invention discloses an anode heat preservation material suction device and method.The anode heat preservation material suction device comprises a protection frame and a material storage box, the protection frame and the material storage box are both arranged on crown block moving equipment, the material storage box communicates with a discharging pipe, the anode heat preservation material suction device further comprises a winding shaft and a screening box, a material suction pipe is wound on the winding shaft, and the winding shaft is rotationally arranged in the protection frame; a negative-pressure material suction structure is arranged in the winding shaft and communicates with a material suction pipe, one side of the winding shaft communicates with a discharging structure, the screening box communicates with one side of the material storage box and communicates with the discharging structure, and a crushed material screening mechanism used for screening heat-preservation crushed materials into heat-preservation powder materials and heat-preservation crushed materials is arranged in the screening box. And a block material conveying pipeline is arranged on one side of the material storage box body. The invention provides an anode thermal insulation material suction device and method to solve the problem that thermal insulation crushed materials discharged by a suction device in the prior art are large in size difference, and the completeness of a subsequently formed thermal insulation shell is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of anode replacement, and particularly to an anode thermal insulation material suction device and method. Background Art

[0002] An aluminum electrolysis cell is an existing technical equipment for producing electrolytic aluminum in the prior art. The modern electrolytic aluminum industrial production adopts the cryolite-aluminum oxide molten salt electrolysis method. Molten cryolite is the solvent, aluminum oxide is the solute, a carbon body is used as the anode, and aluminum liquid is the current-carrying carrier. A carbon block is arranged at the bottom of the aluminum electrolysis cell as the cathode (the cathode does not consume). After passing a strong direct current, at 950°C - 970°C, an electrochemical reaction occurs inside the molten electrolyte. Anode - electrolyte solution - aluminum liquid - cathode (the main chemical reaction is between the molten electrolyte and the anode). Aluminum powder / aluminum ore (aluminum trioxide) is added into the aluminum electrolysis cell, and the carbon body is lowered into the aluminum electrolysis cell and comes into contact with it. As the electrolytic aluminum operation continues, the carbon body will be consumed to a certain extent. After a fixed service life of the carbon body, the carbon body will become a spent anode, and at the same time, it is necessary to use PTM equipment to replace the spent anode.

[0003] PTM equipment refers to an aluminum electrolysis multifunctional unit, which uses a crane as a mobile equipment carrier to drive various equipment for replacing the spent anode to move, so that multiple equipment are started in sequence to complete the spent anode replacement operation. Then it will move to the upper side of the corresponding aluminum electrolysis cell, take out the spent anode in the aluminum electrolysis cell by using the aluminum electrolysis multifunctional unit, and then move a new anode into the aluminum electrolysis cell again to complete the anode replacement operation.

[0004] When performing the above-mentioned anode replacement operation in the aluminum electrolysis cell, a layer of thermal insulation shell will remain on the surface of the electrolyzed spent anode carbon body. By performing a shell-breaking operation on the thermal insulation shell, the thermal insulation shell is broken into thermal insulation fragments, and then the suction device sucks the broken thermal insulation fragments through a suction pipe. Then, after the anode is replaced subsequently and the anode is placed into the aluminum electrolysis cell, it is necessary to re-add the thermal insulation fragments onto the surface of the anode carbon body through a feeding pipe. During the subsequent electrolysis process of the anode carbon body, the heat generated in the anode carbon body will not dissipate excessively into the aluminum electrolysis cell. Under the action of high temperature, the thermal insulation fragments will become a shell attached to the surface of the carbon body. However, due to the limitations of the on-site construction environment, it is difficult for the operator to break the thermal insulation shell into thermal insulation fragments of equal volume during the shell-breaking operation. Therefore, larger residues will be mixed in the thermal insulation fragments discharged by the subsequent suction device. During the high-temperature sintering process of the thermal insulation fragments with a large volume difference, cracks will appear in the formed thermal insulation shell, affecting the thermal insulation effect during the electrolysis process of the anode carbon body. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an anode thermal insulation material suction device and method to solve the problem in the background art that the volume of the thermal insulation crushed materials discharged by the suction device in the prior art varies greatly, affecting the integrity of the subsequent formed thermal insulation shell.

[0006] To achieve the above object, the present invention provides the following technical solutions: An anode thermal insulation material suction device includes a protective frame and a storage box body. Both the protective frame and the storage box body are arranged on a crane moving device. A feeding pipe is connected to the storage box body. The device further includes: A winding shaft body on which a suction pipe is wound. The winding shaft body is rotatably arranged in the protective frame. A negative pressure suction structure is arranged inside the winding shaft body and is communicated with the suction pipe. One side of the winding shaft body is communicated with a discharging structure; A screening box body is connected to one side of the storage box body and is communicated with the discharging structure. A crushed material screening mechanism for screening the thermal insulation crushed materials into thermal insulation powder materials and thermal insulation crushed materials is arranged inside the screening box body. A block material conveying pipeline is arranged on one side of the storage box body, wherein, the thermal insulation powder is discharged into the storage box body through the screening box body and then discharged through the feeding pipe; The thermal insulation block materials are discharged into the block material conveying pipeline through the screening box body and discharged. The block material conveying pipeline is fixedly connected to the feeding pipe.

[0007] To realize the suction operation of the thermal insulation crushed materials, further, the winding shaft body is inclined and rotatably arranged in the protective frame. The inside of the winding shaft body is a cavity. The negative pressure suction structure is arranged in the cavity. A spiral fixing groove is formed on the outer wall of the winding shaft body, and the suction pipe is attached to the inner wall of the spiral fixing groove.

[0008] To suck out the thermal insulation crushed materials in the aluminum electrolysis cell, further, the negative pressure suction structure includes a feeding cylinder body, a negative pressure suction device and a discharging pipe. The feeding cylinder body is arranged in the cavity. One end of the suction pipe penetrates the winding shaft body and is communicated with the feeding cylinder body. The negative pressure suction device is located in the cavity. The feeding end of the negative pressure suction device is rotatably connected to the feeding cylinder body, and the discharging end of the negative pressure suction device is communicated with the discharging pipe.

[0009] In order to discharge and convey the heat-insulating broken materials, further, the discharging structure includes a discharging cylinder body and a material receiving sleeve. The discharging cylinder body is fixedly connected to one side of the material receiving roller body, and the discharging cylinder body is communicated with the cavity. The discharging pipe extends into the discharging cylinder body. Among them, discharging grooves are circumferentially formed on the discharging cylinder body. The material receiving sleeve is rotatably sleeved outside the discharging cylinder body. One side of the material receiving sleeve is communicated with a discharging channel, and one side of the discharging channel is communicated with the top of the screening box body.

[0010] In order to screen the heat-insulating broken materials into heat-insulating powder materials and heat-insulating broken materials, further, the broken material screening mechanism includes a slope-shaped frame, a flexible screening layer and a circulating conveyor belt. The slope-shaped frame is fixedly connected inside the screening box body. A through groove is formed on the slope surface of the slope-shaped frame. The slope-shaped frame divides the inside of the screening box body into a block material discharging chamber and a powder material discharging chamber. The powder material discharging chamber is communicated with the storage box body. The flexible screening layer is arranged in the through groove. The flexible screening layer is used to screen the heat-insulating broken materials into heat-insulating powder materials and heat-insulating broken materials. The heat-insulating powder materials fall into the powder material discharging chamber. The circulating conveyor belt is drivingly arranged inside the slope-shaped frame. A plurality of scraping plates are fixedly connected to the outside of the circulating conveyor belt. The scraping plates are in contact with the bottom of the flexible screening layer. The scraping plates drive the heat-insulating block materials on the surface of the flexible screening layer to move downward, and the scraping plates also drive the screened heat-insulating powder materials to move into the storage box body.

[0011] In order to convey the heat-insulating block materials into the block material conveying pipeline, further, a material receiving hopper body is fixedly connected to one side of the storage box body. The block material discharging chamber is communicated with the material receiving hopper body. The block material conveying pipeline is communicated at the bottom of the material receiving hopper body.

[0012] In order to drive the feeding pipe and the block material conveying pipeline to rise, further, a lifting groove frame is fixedly connected to one side of the storage box body. A bent lifting frame is longitudinally slidably arranged inside the lifting groove frame. The bottom of the bent lifting frame is fixedly connected with a concave fixed seat. A plurality of guiding wheels are rotatably connected to both sides of the concave fixed seat. The feeding pipe and the block material conveying pipeline are both located between the plurality of guiding wheels on both sides.

[0013] In order to drive the suction pipe to move horizontally, further, a transverse movement groove body is communicated with the bottom of the protection frame. A moving sleeve is horizontally slidably connected inside the transverse movement groove body. The suction pipe extends into the moving sleeve.

[0014] In order to make the suction pipe vertically descend, further, a weight ring sleeve is fixedly sleeved at the bottom of the suction pipe.

[0015] The anode heat-insulating material suction method uses the above-mentioned anode heat-insulating material suction device, and includes the following steps: Step 1. Unreel: After the operator completes the shell breaking operation on the surface of the residual anode carbon body in the aluminum electrolytic cell, move the suction pipe to the designated position through the overhead crane moving equipment. By driving the reel body to rotate, unreel the suction pipe and move the bottom of the suction pipe into the aluminum electrolytic cell; Step 2. Suction: Start the negative pressure suction equipment to adsorb the insulating crushed materials in the aluminum electrolytic cell. The insulating crushed materials enter the feeding cylinder along the suction pipe, and then under the action of the negative pressure suction equipment, the insulating crushed materials are transported to the discharge cylinder through the discharge pipe; Step 3. Reset: After sucking the insulating crushed materials, reel in the suction pipe through the reel body. After completion, let the operator perform the subsequent anode replacement operation; Step 4. Screening: All the insulating crushed materials are moved into the block material discharge chamber. The insulating crushed materials move downward on the flexible screening layer. The flexible screening layer screens the insulating crushed materials. The screened insulating powder passes through the flexible screening layer and enters the powder discharge chamber. The insulating powder falls onto the surface of the circulating conveyor belt and moves towards the storage box body, while the insulating blocks move into the receiving hopper body and the block material conveying pipeline; Step 4. Discharge separation: After the anode replacement is completed, drive the bent lifting frame to move downward, lower the feeding pipe and the block material conveying pipeline together, move the feeding pipe into the aluminum electrolytic cell, inject the insulating powder into the surface of the anode carbon body in the aluminum electrolytic cell, and the insulating blocks can be discharged through the block material conveying pipeline.

[0016] Compared with the prior art, the present invention provides an anode thermal insulation material suction device and method, having the following beneficial effects: In the present invention, during the process of sucking and discharging the insulating crushed materials during anode replacement, first move the suction pipe into the insulating crushed materials in the aluminum electrolytic cell, suck the insulating crushed materials into the negative pressure suction structure through the suction pipe, and then discharge the insulating crushed materials into the screening box through the discharge structure. Screen the insulating crushed materials in the screening box into two types: insulating powder and insulating crushed materials. Directly transport the insulating powder to the storage box body. When it is necessary to re-inject the insulating powder onto the anode carbon body later, move the feeding pipe into the aluminum electrolytic cell and re-inject the insulating powder onto the surface of the anode carbon body. The screened insulating crushed materials are discharged through the block material conveying pipeline. Using the screened insulating powder as the thermal insulation material on the surface of the anode carbon body makes the subsequent thermally sintered thermal insulation shell more complete and effectively improves the thermal insulation performance of the anode carbon body. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the cooperation of the protection frame, storage box body and overhead crane moving equipment in this application; Figure 2 It is a schematic structural diagram of the whole application; Figure 3 It is a schematic structural diagram of a partial cross-section of this application; Figure 4 This application Figure 3 is a schematic enlarged partial structure diagram at position A in it; Figure 5 It is a schematic structural diagram of a partial cross-section of another perspective of this application; Figure 6 It is a schematic structural diagram of a partial cross-section of the cooperation of the winding shaft body, the material suction pipe, the negative pressure material suction device and the material receiving sleeve in this application; Figure 7 It is a schematic structural diagram of the cooperation of the winding shaft body and the spiral fixing groove in this application; Figure 8 It is a schematic structural diagram of a partial cross-section of the cooperation of the slope-shaped frame, the block material discharge chamber, the powder material discharge chamber, the flexible screening layer and the circulating conveyor belt in this application.

[0018] In the figure: 1. Protective frame; 2. Storage box body; 3. Overhead traveling equipment; 4. Feeding pipe; 5. Winding shaft body; 6. Material suction pipe; 7. Screening box body; 8. Block material conveying pipeline; 9. Spiral fixing groove; 10. Feeding cylinder body; 11. Negative pressure material suction device; 12. Discharge pipe; 13. Discharge cylinder body; 14. Material receiving sleeve; 15. Discharge channel; 16. Slope-shaped frame; 17. Block material discharge chamber; 18. Powder material discharge chamber; 19. Flexible screening layer; 20. Circulating conveyor belt; 21. Scraping plate; 22. Material receiving hopper body; 23. Lifting groove frame; 24. Bent lifting frame; 25. Concave fixing seat; 26. Guide wheel; 27. Transverse moving groove body; 28. Moving sleeve; 29. Counterweight ring sleeve; 30. Gear box; 31. First driving motor; 32. Transmission shaft; 33. Second driving motor; 34. Transmission lead screw; 35. Third driving motor; 36. Position adjusting lead screw; 37. Fourth driving motor. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1, please refer to Figures 1 to 8, The anode thermal insulation material suction device includes a protective frame 1 and a storage box body 2. Both the protective frame 1 and the storage box body 2 are arranged on the overhead crane mobile device 3. The overhead crane mobile device 3 is an existing technology device in the prior art used to drive the aluminum electrolysis multifunctional unit to move omnidirectionally in the aluminum electrolysis workshop, realizing moving the aluminum electrolysis multifunctional unit to the top of the corresponding aluminum electrolysis cell, and then completing the operation of replacing the anode in the aluminum electrolysis cell; The aluminum electrolysis multifunctional unit includes a crust breaking device, a spent anode grabbing mechanism, a suction device, and a residue fishing device. When it is necessary to replace the spent anode, first, the operator needs to lift the cover plate of the corresponding aluminum electrolysis cell, and then make the overhead crane mobile device 3 drive multiple devices to move to the upper side of the corresponding aluminum electrolysis cell. First, drive the crust breaking device to descend to crush the thermal insulation material residues on the four sides of the surface of the spent anode, and then use the suction device to descend to suck the thermal insulation material residues to the upper side of the overhead crane. Then, use the spent anode grabbing mechanism to grab the spent anode and remove the spent anode from the aluminum electrolysis cell. After moving the spent anode to the designated position, then use the grabbing mechanism to grab the new anode, and then move the anode into the aluminum electrolysis cell. Then, use the suction device to add the previously collected thermal insulation material residues as thermal insulation material to the surface of the anode. Then, connect the metal guide rod on the anode to the busbar on the aluminum electrolysis cell, supply power to the anode through the busbar, and then make the anode perform electrolysis operation with the aluminum liquid in the aluminum electrolysis cell; The aluminum electrolysis multifunctional unit can drive the crust breaking device, the spent anode grabbing mechanism, the suction device, and the residue fishing device to move along a fixed center point, for adjusting the crust breaking device, the spent anode grabbing mechanism, the suction device, and the residue fishing device to the positions corresponding to the aluminum electrolysis cell in sequence. The protective frame 1 and the storage box body 2 in the present invention will also move along the same fixed center point.

[0021] A feeding pipe 4 is communicated with the storage box body 2. After moving the new anode carbon body after replacement into the aluminum electrolysis cell, move the bottom of the feeding pipe 4 to the upper side of the anode carbon body, and then add the thermal insulation material to the surface of the anode carbon body. The operator can spread and arrange the thermal insulation material on the surface of the anode carbon body. During the subsequent electrolysis operation, the thermal insulation material will sinter to the surface of the anode carbon body under the action of high temperature to form a thermal insulation shell.

[0022] It further includes a winding shaft body 5 on which a suction pipe 6 is wound. The winding shaft body 5 is rotatably arranged in the protective frame 1. The winding shaft body 5 is arranged to rotate obliquely in the protective frame 1. The interior of the winding shaft body 5 is a cavity, and a negative pressure suction structure is arranged in the cavity. A spiral fixing groove 9 is formed on the outer wall of the winding shaft body 5, and the suction pipe 6 is attached to the inner wall of the spiral fixing groove 9. A gearbox 30 is drivably arranged on one side of the winding shaft body 5, and a first driving motor 31 is arranged on the protective frame 1. The output end of the first driving motor 31 is in driving cooperation with the gearbox 30. When it is necessary to wind or unwind the suction pipe 6, the first driving motor 31 is started. Through the driving cooperation among the first driving motor 31, the gearbox 30 and the winding shaft body 5, the winding shaft body 5 is driven to rotate to wind or unwind the suction pipe 6. Among them, when the suction pipe 6 is wound, the suction pipe 6 can be wound onto the winding shaft body 5 along the arc formed by the spiral fixing groove 9, and the suction pipe 6 contacts the inner wall of the spiral fixing groove 9. By keeping the winding shaft body 5 inclined, it is to better move the heat-insulating material towards the discharge structure side.

[0023] A negative pressure suction structure is arranged in the winding shaft body 5. The negative pressure suction structure is communicated with the suction pipe 6. The negative pressure suction structure includes a feeding cylinder body 10, a negative pressure suction device 11 and a discharge pipe 12. The feeding cylinder body 10 is arranged in the cavity. One end of the suction pipe 6 penetrates the winding shaft body 5 and is communicated with the feeding cylinder body 10. The negative pressure suction device 11 is located in the cavity. The feeding end of the negative pressure suction device 11 is rotatably connected to the feeding cylinder body 10. A discharge pipe 12 is communicated with the discharge end of the negative pressure suction device 11. The negative pressure suction device 11 is a known prior art device in the art, and devices such as roots blowers that can generate negative pressure adsorption operations can be used to generate negative pressure suction force in the suction pipe 6 to adsorb the heat-insulating broken materials in the aluminum electrolysis cell. The heat-insulating broken materials enter the feeding cylinder body 10 along the suction pipe 6, and then under the action of the negative pressure suction device 11, the heat-insulating broken materials are conveyed into the discharge cylinder body 13 through the discharge pipe 12; A discharge structure is communicated with one side of the winding shaft body 5. The discharge structure includes a discharge cylinder body 13 and a receiving sleeve 14. The discharge cylinder body 13 is fixedly connected to one side of the winding shaft body 5 and is communicated with the cavity. The discharge pipe 12 extends into the discharge cylinder body 13. Among them, discharge slots are circumferentially formed on the discharge cylinder body 13. The receiving sleeve 14 is rotatably sleeved on the outside of the discharge cylinder body 13. One side of the receiving sleeve 14 is communicated with a discharge channel 15. One side of the discharge channel 15 is communicated with the top of the screening box body 7. The heat-insulating broken materials are conveyed into the discharge cylinder body 13. The discharge cylinder body 13 rotates together with the winding shaft body 5, so that the heat-insulating broken materials filled into the discharge cylinder body 13 are sequentially discharged into the receiving sleeve 14 through the discharge slots, and then the heat-insulating broken materials enter the screening box body 7 through the discharge channel 15 for subsequent screening operations; Since both the discharge cylinder 13 and the winding shaft cylinder 5 are inclined, after the heat-insulating crushed materials are discharged through the discharge pipe 12, the heat-insulating crushed materials are directly discharged into the discharge cylinder 13. Because dust will be generated during the discharge process of the heat-insulating crushed materials, and because the discharge cylinder 13 is inclined, it is very difficult for the heat-insulating crushed materials to escape into the cavity of the winding shaft cylinder 5; An installation groove frame is fixedly connected to the receiving sleeve 14. The installation groove frame extends into the cavity of the winding shaft cylinder 5 and is fixedly connected to the negative pressure suction device 11 for supporting the negative pressure suction device 11 in the cavity of the winding shaft cylinder 5.

[0024] The screening box 7 is connected to one side of the storage box 2. The screening box 7 is connected to the discharge structure. A crushed material screening mechanism for screening the heat-insulating crushed materials into heat-insulating powder materials and heat-insulating crushed materials is arranged in the screening box 7. A block material conveying pipeline 8 is arranged on one side of the storage box 2. Among them, the heat-insulating powder is discharged into the storage box 2 through the screening box 7 and then discharged through the feeding pipe 4. The heat-insulating block materials are discharged into the block material conveying pipeline 8 through the screening box 7 and discharged. The block material conveying pipeline 8 is fixedly connected to the feeding pipe 4. By adding the heat-insulating crushed materials into the interior of the screening box 7 from the top of the screening box 7 through the discharge channel 15, the heat-insulating crushed materials are screened by the crushed material screening mechanism in the screening box 7, and then the screened heat-insulating powder materials and heat-insulating block materials are conveyed separately, so that the heat-insulating powder materials are continuously added into the aluminum electrolysis cell as heat-insulating materials for subsequent use, while the heat-insulating block materials are directly discharged and used after other processing; The crushed material screening mechanism includes a slope-shaped frame 16, a flexible screening layer 19 and a circulating conveyor belt 20. The slope-shaped frame 16 is fixedly connected in the screening box 7. A through groove is formed on the slope surface of the slope-shaped frame 16. The slope-shaped frame 16 divides the interior of the screening box 7 into a block material discharge chamber 17 and a powder material discharge chamber 18. The powder material discharge chamber 18 is communicated with the storage box 2. A flexible screening layer 19 is arranged in the through groove. The flexible screening layer 19 is used for screening the heat-insulating crushed materials into heat-insulating powder materials and heat-insulating crushed materials. The heat-insulating powder materials fall into the powder material discharge chamber 18. The circulating conveyor belt 20 is drivingly arranged in the slope-shaped frame 16. A plurality of scraping plates 21 are fixedly connected to the outer side of the circulating conveyor belt 20. The scraping plates 21 are in contact with the bottom of the flexible screening layer 19. The scraping plates 21 drive the heat-insulating block materials on the surface of the flexible screening layer 19 to move downward. The scraping plates 21 also drive the screened heat-insulating powder materials into the storage box 2. A plurality of transmission shafts 32 are rotatably connected in the screening box 7. Transmission wheels are arranged on the transmission shafts 32. The circulating conveyor belt 20 is drivingly arranged between the plurality of transmission wheels. A second driving motor 33 is arranged on the screening box 7. The output end of the second driving motor 33 is fixedly connected to one of the transmission shafts 32; After all the heat-insulating crushed materials are moved into the block material discharge chamber 17, the heat-insulating crushed materials will move downward on the flexible screening layer 19, and the heat-insulating crushed materials will be screened by the flexible screening layer 19, and the screened heat-insulating powder will pass through the flexible screening layer 19 and enter the powder material discharge chamber 18, and the heat-insulating powder will fall onto the surface of the circulating conveyor belt 20, and under the action of the scraper plate 21, the heat-insulating powder will move into the storage box 2, and a mechanical discharge device is also provided between the bottom of the storage box 2 and the discharge pipe 4, which is used to discharge the heat-insulating powder in the storage box 2 through the discharge pipe 4; Because the scraper plate 21 is in contact with the bottom of the flexible screening layer 19, the speed and screening effect of the insulating fragments moving on the flexible screening layer 19 can be improved, and the scraper plate 21 reciprocatingly contacts the flexible screening layer 19, so that the insulating fragments on the upper surface of the flexible screening layer 19 move to the bottom side, avoiding the problem of the insulating fragments being retained on the flexible screening layer 19.

[0025] A receiving hopper body 22 is fixedly connected to one side of the storage box body 2, and the block material discharge chamber 17 is connected to the receiving hopper body 22. In the pipeline connecting the block material discharge chamber 17 and the receiving hopper body 22, in order to ensure that the block material smoothly enters the receiving hopper body 22, relevant technical equipment with a negative pressure suction function can be set between the block material discharge chamber 17 and the receiving hopper body 22, which is used to transport the block material discharged from the block material discharge chamber 17 to the receiving hopper body 22. The block material conveying pipeline 8 is connected to the bottom of the receiving hopper body 22, and the insulation block material discharged through the block material discharge chamber 17 is moved into the receiving hopper body 22 and the block material conveying pipeline 8. When the feeding pipe 4 moves downward, the block material conveying pipeline 8 is driven to descend together. When the feeding pipe 4 conveys the insulation powder into the aluminum electrolytic cell, the block material conveying pipeline 8 can also discharge the insulation block material in time.

[0026] It should be noted that, in the process of sucking the insulation material as a whole, the conveying path of the airflow generated during the suction process of the insulation crushed material is that the airflow first follows the insulation crushed material along the suction pipe 6 into the feeding cylinder 10, and then the airflow and the insulation crushed material are discharged into the discharge cylinder 13 through the negative pressure suction device 11 and the discharge pipe 12, and then conveyed to the screening box 7 through the discharge cylinder 13. After the insulation crushed material is sorted into powder and block material, the airflow can pass through the receiving hopper 22. And the block material conveying pipeline 8 is discharged, and when the bending lifting frame 24 drives the discharge pipe 4 and the block material conveying pipeline 8 to rise, the block material conveying pipeline 8 will bend upward, so that the block material is retained on the receiving hopper body 22 and the block material conveying pipeline 8, and when the bending lifting frame 24 drives the bottom of the block material conveying pipeline 8 to descend, the block material conveying pipeline 8 will be discharged through the block material conveying pipeline 8 after the block material conveying pipeline 8 tilts downward as a whole. A control valve can be installed at the bottom of the block material conveying pipeline 8 to prevent leakage.

[0027] One side of the storage bin body 2 is fixedly connected with a lifting chute frame 23. A bent lifting frame 24 is longitudinally slidably arranged in the lifting chute frame 23. The bottom of the bent lifting frame 24 is fixedly connected with a concave fixed seat 25. A plurality of guide wheels 26 are rotatably connected to both sides of the concave fixed seat 25. The blanking pipe 4 and the block material conveying pipeline 8 are both located between the plurality of guide wheels 26 on both sides. A transmission lead screw 34 is rotatably arranged in the lifting chute frame 23. The bent lifting frame 24 is in transmission cooperation with the transmission lead screw 34. A third driving motor 35 is arranged at the top of the lifting chute frame 23. The output end of the third driving motor 35 is fixedly connected with the transmission lead screw 34. Starting the third driving motor 35 drives the transmission lead screw 34 to rotate, so that the bent lifting frame 24 moves longitudinally in the lifting chute frame 23. By moving the bent lifting frame 24, the bottom heights of the blanking pipe 4 and the block material conveying pipeline 8 can be adjusted, and the blanking pipe 4 and the block material conveying pipeline 8 are both lowered to the designated positions. During the movement of the blanking pipe 4 and the block material conveying pipeline 8, the blanking pipe 4 and the block material conveying pipeline 8 both move between the plurality of guide wheels 26 in the concave fixed seat 25, so that the blanking pipe 4 and the block material conveying pipeline 8 can move smoothly on the bent lifting frame 24.

[0028] A transverse moving chute body 27 is communicated with the bottom of the protection frame 1. A moving sleeve 28 is transversely slidably connected in the transverse moving chute body 27. The material suction pipe 6 extends into the moving sleeve 28. An adjusting position lead screw 36 is rotatably arranged in the transverse moving chute body 27. A fourth driving motor 37 is arranged on the transverse moving chute body 27. The output end of the fourth driving motor 37 is fixedly connected with the adjusting position lead screw 36. The moving sleeve 28 is in transmission cooperation with the adjusting position lead screw 36. Because it is necessary to fully perform the material suction operation on the heat preservation fragments around the rectangular carbon body, starting the fourth driving motor 37 drives the adjusting position lead screw 36 to rotate, driving the moving sleeve 28 to move transversely in the transverse moving chute body 27, so as to adjust the falling position of the material suction pipe 6, so that the material suction pipe 6 can cover more material suction areas; A counterweight ring sleeve 29 is fixedly sleeved at the bottom of the material suction pipe 6. In order to ensure that the material suction pipe 6 can descend linearly after being unreeled, under the action of the counterweight ring sleeve 29, the material suction pipe 6 descends vertically.

[0029] The working principle or usage process of this anode heat preservation material suction device is as follows: First, after the operator completes the shell breaking operation on the heat preservation shell on the surface of the residual carbon body in the aluminum electrolytic cell, move the material suction pipe 6 to the designated position through the overhead crane moving device 3. By driving the reel body 5 to rotate, unreel the material suction pipe 6, move the bottom of the material suction pipe 6 into the aluminum electrolytic cell, start the negative pressure material suction device 11, adsorb the heat preservation fragments in the aluminum electrolytic cell, and the heat preservation fragments enter the feeding cylinder body 10 along the material suction pipe 6. Then, under the action of the negative pressure material suction device 11, convey the heat preservation fragments to the discharging cylinder body 13 through the discharging pipe 12; Then, after sucking up the heat-insulating broken materials, the suction pipe 6 is wound up by the winding shaft body 5. After completion, the operator can perform the subsequent anode replacement operation. All the heat-insulating broken materials are moved into the block discharging chamber 17. The heat-insulating broken materials will move downward on the flexible screening layer 19. The flexible screening layer 19 will screen the heat-insulating broken materials. The screened heat-insulating powder materials will pass through the flexible screening layer 19 and enter the powder discharging chamber 18. The heat-insulating powder materials fall onto the surface of the circulating conveyor belt 20. Under the action of the scraping plate 21, the heat-insulating powder materials are moved towards the storage box body 2, while the heat-insulating blocks are moved into the material receiving hopper body 22 and the block conveying pipeline 8. When the feeding pipe 4 moves downward, the block conveying pipeline 8 is driven to descend together. When the feeding pipe 4 conveys the heat-insulating powder materials into the aluminum electrolytic cell, the block conveying pipeline 8 can timely discharge the heat-insulating blocks as well. After the anode replacement is completed, by driving the bent lifting frame 24 to move downward, the feeding pipe 4 and the block conveying pipeline 8 are lowered together, so that the feeding pipe 4 is moved into the aluminum electrolytic cell, and the heat-insulating powder materials are filled onto the surface of the anode carbon body in the aluminum electrolytic cell, while the heat-insulating blocks can be discharged through the block conveying pipeline 8.

[0030] Embodiment 2: Based on the anode heat-insulating material suction device, this embodiment 2 also proposes an anode heat-insulating material suction method, including the following steps: Step 1, unwinding: After the operator completes the shell breaking operation on the surface of the residual anode carbon body in the aluminum electrolytic cell, the suction pipe 6 is moved to the designated position through the overhead crane moving device 3. By driving the winding shaft body 5 to rotate, the suction pipe 6 is unwound, and the bottom of the suction pipe 6 is moved into the aluminum electrolytic cell. Step 2, suction: The negative pressure suction device 11 is started to adsorb the heat-insulating broken materials in the aluminum electrolytic cell. The heat-insulating broken materials enter the feeding cylinder body 10 along the suction pipe 6, and then under the action of the negative pressure suction device 11, the heat-insulating broken materials are conveyed to the discharging cylinder body 13 through the discharging pipe 12. Step 3, resetting: After sucking up the heat-insulating broken materials, the suction pipe 6 is wound up by the winding shaft body 5. After completion, the operator can perform the subsequent anode replacement operation. Step 4, screening: All the heat-insulating broken materials are moved into the block discharging chamber 17. The heat-insulating broken materials will move downward on the flexible screening layer 19. The flexible screening layer 19 will screen the heat-insulating broken materials. The screened heat-insulating powder materials will pass through the flexible screening layer 19 and enter the powder discharging chamber 18. The heat-insulating powder materials fall onto the surface of the circulating conveyor belt 20. The heat-insulating powder materials move towards the storage box body 2, while the heat-insulating blocks are moved into the material receiving hopper body 22 and the block conveying pipeline 8. Step 4. Row separation: After the anode is replaced, drive the bending lifting frame 24 to move downward to lower the blanking pipe 4 and the bulk material conveying pipeline 8 together, move the blanking pipe 4 into the aluminum electrolytic cell, pour the heat-insulating powder onto the surface of the anode carbon body in the aluminum electrolytic cell, and the heat-insulating bulk material can be discharged through the bulk material conveying pipeline 8.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Anode heat-insulating material suction device, comprising a protective frame (1) and a storage box body (2), wherein the protective frame (1) and the storage box body (2) are both arranged on a crane mobile device (3), and a feeding pipe (4) is communicated with the storage box body (2), characterized in that, Further included are: A take-up reel body (5) on which a suction pipe (6) is wound. The take-up reel body (5) is rotatably arranged in the protective frame (1). A negative-pressure suction structure is arranged inside the take-up reel body (5), the negative-pressure suction structure is communicated with the suction pipe (6), and a discharge structure is communicated with one side of the take-up reel body (5); A screening box body (7) is communicated with one side of the storage box body (2), the screening box body (7) is communicated with the discharge structure, a broken material screening mechanism for screening the heat preservation broken materials into heat preservation powder materials and heat preservation broken materials is arranged inside the screening box body (7), and a block material conveying pipeline (8) is arranged on one side of the storage box body (2); Among them, the heat preservation powder is discharged into the storage box body (2) through the screening box body (7), and then discharged through the feeding pipe (4); The heat preservation block materials are discharged into the block material conveying pipeline (8) through the screening box body (7) and discharged, and the block material conveying pipeline (8) is fixedly connected with the feeding pipe (4).

2. The anode heat-insulating material suction device according to claim 1, characterized in that The take-up reel body (5) is inclined and rotatably arranged in the protective frame (1), the inside of the take-up reel body (5) is a cavity, the negative-pressure suction structure is arranged in the cavity, a spiral fixing groove (9) is formed on the outer wall of the take-up reel body (5), and the suction pipe (6) is attached to the inner wall of the spiral fixing groove (9).

3. The anode thermal insulation material suction device according to claim 2, characterized in that, The negative-pressure suction structure includes: A feeding cylinder body (10) arranged in the cavity. One end of the suction pipe (6) penetrates through the take-up reel body (5) and is communicated with the feeding cylinder body (10); A negative-pressure suction device (11) located in the cavity. The feeding end of the negative-pressure suction device (11) is rotatably connected with the feeding cylinder body (10); A discharge pipe (12) is communicated with the discharge end of the negative-pressure suction device (11).

4. The anode heat-insulating material suction device according to claim 3, characterized in that, The discharge structure includes: A discharge cylinder body (13) fixedly connected to one side of the take-up reel body (5), and the discharge cylinder body (13) is communicated with the cavity. The discharge pipe (12) extends into the discharge cylinder body (13); Among them, a discharge groove is formed on the circumference of the discharge cylinder body (13); A receiving sleeve (14) is rotatably sleeved on the outside of the discharge cylinder body (13). One side of the receiving sleeve (14) is communicated with a discharge channel (15), and one side of the discharge channel (15) is communicated with the top of the screening box body (7).

5. The anode thermal insulation material suction device according to claim 4, characterized in that, The broken material screening mechanism includes: A slope-shaped frame (16) fixedly connected inside the screening box body (7). A through groove is formed on the slope surface of the slope-shaped frame (16). The slope-shaped frame (16) divides the inside of the screening box body (7) into a block material discharge chamber (17) and a powder material discharge chamber (18), and the powder material discharge chamber (18) is communicated with the storage box body (2); Flexible screening layer (19), the flexible screening layer (19) is arranged in the through groove, and the flexible screening layer (19) is used to screen the thermal insulation scraps into thermal insulation powder and thermal insulation scraps, and the thermal insulation powder falls into the powder discharge chamber (18); Circulating conveyor belt (20), the circulating conveyor belt (20) is drivingly arranged in the slope-shaped frame (16), and a plurality of scraping plates (21) are fixedly connected to the outer side of the circulating conveyor belt (20), and the scraping plates (21) are in contact with the bottom of the flexible screening layer (19), and the scraping plates (21) drive the thermal insulation block materials on the surface of the flexible screening layer (19) to move downward, and the scraping plates (21) also drive the screened thermal insulation powder to move into the storage box body (2).

6. The anode thermal insulation material suction device according to claim 5, characterized in that A receiving hopper body (22) is fixedly connected to one side of the storage box body (2), the block material discharge chamber (17) is communicated with the receiving hopper body (22), and the block material conveying pipeline (8) is communicated at the bottom of the receiving hopper body (22).

7. The anode thermal insulation material suction device according to claim 6, characterized in that, A lifting groove frame (23) is fixedly connected to one side of the storage box body (2), a bent lifting frame (24) is longitudinally slidably arranged in the lifting groove frame (23), a concave fixed seat (25) is fixedly connected to the bottom of the bent lifting frame (24), and a plurality of guiding wheels (26) are rotatably connected to both sides of the concave fixed seat (25), and the feeding pipe (4) and the block material conveying pipeline (8) are both located between the plurality of guiding wheels (26) on both sides.

8. The anode heat-insulating material suction device according to claim 7, characterized in that, A transverse movement groove body (27) is communicated with the bottom of the protection frame (1), a moving sleeve (28) is horizontally slidably connected in the transverse movement groove body (27), and the suction pipe (6) extends into the moving sleeve (28).

9. The anode heat-insulating material suction device according to claim 8, wherein, A weight ring sleeve (29) is fixedly sleeved at the bottom of the suction pipe (6).

10. The method for sucking the anode heat-insulating material uses the anode heat-insulating material sucking device described in claim 9, and is characterized in that, Including the following steps: Step 1, unwinding: After the operator completes the shell breaking operation on the surface thermal insulation shell of the residual anode carbon body in the aluminum electrolytic cell, move the suction pipe (6) to the designated position through the overhead crane moving device (3), and drive the winding shaft body (5) to rotate to unwind the suction pipe (6), and move the bottom of the suction pipe (6) into the aluminum electrolytic cell; Step 2, suction: Start the negative pressure suction device (11) to adsorb the thermal insulation scraps in the aluminum electrolytic cell, the thermal insulation scraps enter the feeding cylinder body (10) along the suction pipe (6), and then under the action of the negative pressure suction device (11), the thermal insulation scraps are conveyed to the discharge cylinder body (13) through the discharge pipe (12); Step 3, reset: After the thermal insulation scraps are sucked up, wind up the suction pipe (6) through the winding shaft body (5), and after completion, enable the operator to perform the subsequent anode replacement operation; Step Four: Screening: All the heat-insulating scraps are transferred into the block discharging chamber (17). The heat-insulating scraps will move downward on the flexible screening layer (19). The flexible screening layer (19) will screen the heat-insulating scraps. The screened heat-insulating powder will pass through the flexible screening layer (19) and enter the powder discharging chamber (18). The heat-insulating powder will fall onto the surface of the circulating conveyor belt (20) and move towards the storage box body (2), while the heat-insulating blocks will be transferred into the material receiving hopper body (22) and the block conveying pipeline (8). Step Four: Separate Discharge: After the anode is replaced, by driving the bent lifting frame (24) to move downward, the feeding pipe (4) and the block conveying pipeline (8) are lowered together, so that the feeding pipe (4) is moved into the aluminum electrolytic cell, and the heat-insulating powder is poured onto the surface of the anode carbon body in the aluminum electrolytic cell, while the heat-insulating blocks can be discharged through the block conveying pipeline (8).

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