Aluminum electrolysis multifunctional crown automatic dust collection device
By installing components such as bag filters, exhaust fans, and dust collection pipes on the multi-functional overhead crane for aluminum electrolysis, combined with a pulse backflushing mechanism, automatic dust collection is achieved, solving the dust pollution problem in the aluminum electrolysis workshop and improving production efficiency and environmental safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YONGXIN ALUMINUM
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-07
AI Technical Summary
The lack of dust collection devices in the multi-functional overhead crane's material box, anode mechanism, and feeding pipe in the aluminum electrolysis workshop leads to dust dispersion, environmental pollution, high equipment failure rate, serious raw material waste, significant environmental hazards, difficult cleaning, and dangerous high-altitude operations.
Design an automatic dust collection device for a multi-functional overhead crane in aluminum electrolysis, including a bag filter, a fan, a pole-changing dust collection pipe and a material discharge dust collection pipe, combined with a pulse back-blowing mechanism to achieve automatic collection and treatment of dust, and integrated PLC automatic control.
It effectively reduces dust, lowers equipment failure rate, saves raw materials, improves the working environment, meets environmental protection requirements, reduces labor costs and labor intensity, and enables the creation of a leak-free factory.
Smart Images
Figure CN224467949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum electrolysis technology, and in particular to an automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis. Background Technology
[0002] The overhead crane is the main equipment in the aluminum electrolysis workshop, primarily responsible for tasks such as shell breaking, slag removal, and electrode feeding during the anode replacement process. Its technical performance indicators have a significant impact on production. The multi-functional overhead crane is a key piece of equipment to ensure continuous production in the electrolysis process, mainly used for tasks such as shell breaking, anode replacement, material feeding, aluminum tapping, busbar lifting, and major overhauls of electrolytic cells.
[0003] In actual production, since there are no dust collection devices above the multi-functional overhead crane hopper, the anode mechanism, or the discharge port of the feeding pipe, a large amount of dust is generated and dispersed throughout the electrolysis workshop when the material is fed from the hopper at the top of the plant to the multi-functional overhead crane hopper; at the same time, a large amount of dust is also generated when the material is discharged from the multi-functional overhead crane into the electrolytic cell. This dust has been present for a long time, accumulating on the surface of the upper structure of the electrolytic cell, the overhead crane platform, the ground, and other places. This dust accumulation causes many problems, such as: slight vibrations when the overhead crane moves cause dust to fall from the top and pollute the environment; when the overhead crane is feeding, the positive pressure exhaust from the hopper carries out a large amount of dust, polluting the workshop environment; the upper structure of the electrolytic cell has multiple electrically driven devices, and dust increases the failure rate of these devices; manual cleaning of the dust on the ground is a huge workload and the cleaning effect is poor; the ground can be cleaned manually, but the top of the equipment is difficult to clean; the main components of the dust are alumina and electrolyte powder, which are actually production raw materials, and excessive dust accumulation leads to the waste of production raw materials; environmental protection requirements are becoming increasingly strict, and a large amount of dust in the workshop poses a high environmental hazard; dust on the equipment surface can easily cause slippery conditions, posing a great risk of fall during high-altitude maintenance operations. Utility Model Content
[0004] In view of the technical problems existing in the background art, the purpose of this utility model is to provide an automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0006] An automatic dust collection device for a multi-functional overhead crane in aluminum electrolysis includes an overhead crane hopper. A feed inlet is located at the top of the hopper, and a first valve is installed at the feed inlet. A bag filter is fixedly installed inside the hopper to collect dust generated during feeding and re-feed the collected dust back into the hopper. An exhaust fan is fixedly installed at one end of the hopper. The input end of the exhaust fan is connected to a clear air pipe extending into the hopper, and the output end of the exhaust fan is connected to the material chamber of the bag filter via a pulse back-blowing mechanism. A switching dust collection pipe and a discharge dust collection pipe are fixedly connected to the surface of the hopper. The lower end of the switching dust collection pipe is connected to a first dust collection hood, which corresponds to a switching clamp. The lower end of the discharge dust collection pipe is connected to a second dust collection hood, which corresponds to the discharge port of the overhead crane discharge pipe.
[0007] Preferably, there are two bag filters, which are symmetrically arranged on both sides of the feed inlet.
[0008] Preferably, the input end of the bag filter is located outside the overhead crane hopper and near the feed inlet, and the output end of the bag filter is equipped with multiple dust collector bags, which are located inside the overhead crane hopper.
[0009] Preferably, the pulse backflushing mechanism is fixedly installed on the outside of the overhead crane's material box. The pulse backflushing mechanism includes a compressed air storage tank, a compressed air delivery pipe, and a switch valve. The compressed air storage tank is fixedly installed on the outer surface of the overhead crane's material box, and the output end of the exhaust fan is connected to the compressed air storage tank through a pipe. One end of the compressed air delivery pipe is fixedly connected to the compressed air storage tank, and the other end of the compressed air delivery pipe is connected to the material chamber of the bag filter. The switch valve is installed on the compressed air delivery pipe.
[0010] Preferably, the pulse backflush mechanism also includes a switching valve, which is disposed on the compressed air delivery pipe.
[0011] Preferably, there are two compressed air delivery pipes and two switching valves, and the two compressed air delivery pipes correspond to the material chambers of the two bag filters respectively.
[0012] As a preferred option, a second valve is installed on the electrode switching dust collection pipe, and a third valve is installed on the material discharge dust collection pipe.
[0013] Preferably, an electric winch mechanism is fixedly installed on the top of the multi-functional overhead crane. The electric winch mechanism is used to control the raising and lowering of the material unloading and dust collection pipe.
[0014] This utility model has the following advantages and beneficial effects:
[0015] This utility model discloses an automatic dust collection device for a multi-functional overhead crane used in aluminum electrolysis. By incorporating a bag filter, exhaust fan, electrode-changing dust collection pipe, and material discharge dust collection pipe, it provides highly efficient dust collection during multi-functional overhead crane operations. The device is highly reliable, simple in structure, easy to install, and facilitates maintenance and parts replacement, improving dust collection efficiency and equipment utilization. It also recovers and saves a significant amount of electrolyte powder and alumina powder, reducing production costs. The device eliminates the need for manual sweeping and dust handling, greatly saving labor costs. During material feeding, the multi-functional overhead crane automatically collects dust under negative pressure. The collected material enters the hopper and can be directly added to the electrolytic cell, avoiding secondary handling and significantly reducing the labor intensity of workers, saving substantial costs associated with labor and other low-end cleaning equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis, as proposed in this utility model.
[0017] Figure 2 This utility model proposes an automatic dust collection device for a multifunctional overhead crane used in aluminum electrolysis. Figure 1 A schematic diagram of the enlarged structure of A in the middle;
[0018] Figure 3 This is a schematic diagram of the electrode switching dust collection pipe and the material unloading dust collection pipe of the multifunctional overhead crane automatic dust collection device for aluminum electrolysis proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the pulse backflushing mechanism of an automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis, as proposed in this utility model.
[0020] Attached reference numerals: 1-Heavy crane hopper, 2-Feed inlet, 3-First valve, 4-Bag filter, 5-Exhaust fan, 6-Clean air pipe, 7-Dust collection pipe for pole changing, 8-Discharge dust collection pipe, 9-First dust collection hood, 10-Second dust collection hood, 11-Heavy crane discharge pipe, 12-Dust collector filter bag, 13-Compressed air storage tank, 14-Compressed air delivery pipe, 15-Switch valve, 16-Second valve, 17-Third valve, 18-Electric hoisting mechanism, 19-Multi-functional overhead crane. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] Example
[0024] like Figures 1-4 As shown, an automatic dust collection device for a multi-functional overhead crane in aluminum electrolysis includes an overhead crane hopper 1. The overhead crane hopper 1 is mainly used for loading and unloading materials on the multi-functional overhead crane 19 in aluminum electrolysis. The top of the overhead crane hopper 1 is provided with a feed inlet 2, and a first valve 3 is provided at the feed inlet 2. By providing the first valve 3, the feed inlet 2 can be sealed. A bag filter 4 is fixedly installed inside the overhead crane hopper 1 to collect the dust generated during feeding and send the collected dust back into the overhead crane hopper 1. It should be noted that the bag filter 4 is installed at the top of the overhead crane hopper 1.
[0025] like Figures 1-4 As shown, an exhaust fan 5 is fixedly installed at one end of the overhead crane material box 1. The input end of the exhaust fan 5 is fixedly connected to a clear pipe 6 extending into the interior of the overhead crane material box 1, and the output end of the exhaust fan 5 is connected to the material chamber of the bag filter 4 through a pulse back-blowing mechanism. A pole-changing dust collection pipe 7 and a material discharge dust collection pipe 8 are fixedly connected to the surface of the overhead crane material box 1, respectively. The lower end of the pole-changing dust collection pipe 7 is connected to a first dust collection hood 9, and the first dust collection hood 9 corresponds to the pole-changing clamp, because the pole-changing clamp is on the overhead crane rotary table. During electrode switching, the electrode switching clamp will rotate. The electrode switching dust collection pipe 7 needs to be fixed at the upper end to allow sufficient length for rotation. Dust will be generated during the electrode switching process. After setting the electrode switching dust collection pipe 7 and the electrode switching dust collection hood 9, the dust can be recovered during the electrode switching process. The lower end of the material discharge dust collection pipe 8 is connected to the second dust collection hood 10, and the second dust collection hood 10 corresponds to the discharge port of the overhead crane discharge pipe 11. By setting the overhead crane discharge pipe 11, the material in the overhead crane material box 1 can be added to the electrolytic cell.
[0026] The bag filter 4 can collect dust outside the feed inlet 2 and send the collected dust into the overhead crane hopper 1.
[0027] By closing the first valve 3, a sealed space is formed inside the overhead crane material box 1. The exhaust fan 5 is used to extract the air from inside the overhead crane material box 1 through the air purging pipe 6, so that the inside of the overhead crane material box 1 is in a negative pressure state. The collected material enters the overhead crane material box 1, and the material can be directly added to the electrolytic cell by opening the discharge pipe 11, avoiding secondary handling. The dust generated during the material discharge operation of the multi-functional overhead crane 19 can be collected by using the discharge dust collection pipe 8 and the second dust collection hood 10.
[0028] By installing a bag filter 4, an exhaust fan 5, a switching dust collection pipe 7, and a material discharge dust collection pipe 8, the device can provide efficient dust collection during the operation of the multi-functional overhead crane 19. The device is highly reliable, simple in structure, easy to install, and convenient for maintenance and replacement of parts, thereby improving dust collection efficiency and equipment utilization. It also recovers and saves a large amount of electrolyte powder and alumina powder, thus reducing production costs.
[0029] The entire automatic dust collection system eliminates the need for manual sweeping and dust removal, significantly reducing labor costs. During overhead crane feeding, automatic negative pressure dust collection occurs, and the collected material enters the silo and can be directly added to the electrolytic cell, avoiding secondary handling. This greatly reduces the labor intensity for workers and saves substantial costs associated with labor and other low-end cleaning equipment.
[0030] like Figures 1-4 As shown, there are two bag filters 4, which are symmetrically arranged on both sides of the feed inlet 2.
[0031] like Figures 1-4 As shown, the input end of the bag filter 4 is located outside the overhead crane hopper 1 and near the feed inlet 2. The output end of the bag filter 4 is equipped with multiple dust collector bags 12, which are located inside the overhead crane hopper 1. The length of the dust collector bags 12 extending into the overhead crane hopper 1 is 600mm. By setting the dust collector bags 12, the material discharged into the overhead crane hopper 1 by the bag filter 4 can be filtered.
[0032] The pulse back-blowing mechanism is fixedly installed on the outside of the overhead crane hopper 1. The pulse back-blowing mechanism includes a compressed air storage tank 13, a compressed air delivery pipe 14, and a switch valve 15. The compressed air storage tank 13 is fixedly installed on the outer surface of the overhead crane hopper. One end of the compressed air delivery pipe 14 is fixedly connected to the compressed air storage tank 13, and the other end of the compressed air delivery pipe 14 is connected to the material chamber of the bag filter 4. The switch valve 15 is set on the compressed air delivery pipe 14. By setting the pulse back-blowing mechanism, compressed air is stored in the compressed air storage tank 13. By opening the switch valve 15, air is delivered to the material chamber of the bag filter 4 through the compressed air delivery pipe 14. By releasing the compressed air instantaneously, the dust collector bags 12 are back-blown, thereby removing the dust attached to the surface of the dust collector bags 12 and improving the cleaning effect of the dust collector bags 12.
[0033] There are two compressed air delivery pipes 14 and two switch valves 15, and the two compressed air delivery pipes 14 correspond to the material chambers of the two bag dust collectors 4 respectively.
[0034] A second valve 16 is installed on the electrode switching dust collection pipe 7, and a third valve 17 is installed on the material discharge dust collection pipe 8. By installing the second valve 16 and the third valve 17, the dust collection switches of the electrode switching dust collection pipe 7 and the material discharge dust collection pipe 8 can be controlled.
[0035] An electric winch mechanism 18 is fixedly installed above the multi-functional overhead crane 19. The electric winch mechanism 18 is used to control the lifting and lowering of the material discharge and dust collection pipe 8. Because the overhead crane's material discharge pipe 11 needs to be lifted and lowered at the material discharge position, a sufficiently long material discharge and dust collection pipe 8 needs to be reserved. In order to avoid the hanging material discharge and dust collection pipe 8 from affecting the operation of the multi-functional overhead crane 19, an electric winch mechanism 18 is installed on the multi-functional overhead crane 19. When not in use, the material discharge and dust collection pipe 8 is lifted into the air, thereby completing the automatic dust collection operation of the multi-functional overhead crane 19.
[0036] The entire dust collection system eliminates the risk of failing to meet environmental protection standards by recycling dust. Dust and accumulated dust in the workshop are no longer emitted without organization, and dust in the workshop is collected in an organized manner, improving the working environment of the workshop and meeting the requirements of environmental protection and occupational health and safety regulations.
[0037] In practical applications, the entire dust collection device adopts PLC automated control, integrating the operation of the dust collection device into the original overhead crane remote control. The design and development of this dust collection device has achieved complete automation. Through programming improvements to the overhead crane PLC program, operators only need to operate the overhead crane remote control to complete the dust collection. This technical upgrade effectively solved the problem of flying production materials, greatly improved the equipment and working environment, and met the requirements for creating a "leak-free" factory.
[0038] This is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An automatic dust collection device for a multi-functional overhead crane in aluminum electrolysis, comprising an overhead crane material bin, characterized in that, The top of the overhead crane material box is provided with a feed inlet, and a first valve is provided at the feed inlet. A bag filter is fixedly installed inside the overhead crane material box to collect the dust generated during feeding and send the collected dust back into the overhead crane material box. An exhaust fan is fixedly installed at one end of the overhead crane material box. The input end of the exhaust fan is fixedly connected to a clear air pipe extending into the interior of the overhead crane material box. A pole-changing dust collection pipe and a discharge dust collection pipe are fixedly connected to the surface of the overhead crane material box. The lower end of the pole-changing dust collection pipe is connected to a first dust collection hood, and the first dust collection hood corresponds to the pole-changing clamp. The lower end of the discharge dust collection pipe is connected to a second dust collection hood, and the second dust collection hood corresponds to the discharge port of the overhead crane discharge pipe.
2. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 1, characterized in that: There are two bag filters, which are symmetrically arranged on both sides of the feed inlet.
3. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 2, characterized in that: The input end of the bag filter is located outside the overhead crane hopper and near the feed inlet. The output end of the bag filter is equipped with multiple dust collector bags, which are located inside the overhead crane hopper.
4. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 3, characterized in that: The pulse backflushing mechanism is fixedly installed on the outside of the overhead crane's material box. The pulse backflushing mechanism includes a compressed air storage tank, a compressed air delivery pipe, and a switch valve. The compressed air storage tank is fixedly installed on the outer surface of the overhead crane's material box. One end of the compressed air delivery pipe is fixedly connected to the compressed air storage tank, and the other end of the compressed air delivery pipe is connected to the material chamber of the bag filter. The switch valve is located on the compressed air delivery pipe.
5. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 4, characterized in that: The pulse backflush mechanism also includes a switching valve, which is installed on the compressed air delivery pipe.
6. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 5, characterized in that: The number of compressed air delivery pipes and switching valves are both two, and the two compressed air delivery pipes correspond to the material chambers of the two bag filters, respectively.
7. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 1, characterized in that: The electrode switching dust collection pipe is equipped with a second valve, and the material discharge dust collection pipe is equipped with a third valve.
8. The automatic dust collection device for a multifunctional overhead crane in aluminum electrolysis according to claim 1, characterized in that: An electric winch mechanism is fixedly installed above the multi-functional overhead crane. The electric winch mechanism is used to control the raising and lowering of the material unloading and dust collection pipe.