Electrolytic aluminium green anode block cooling equipment

Abstract

The present application relates to electrolytic aluminium carbon technology field, especially to a kind of electrolytic aluminium green anode carbon block cooling equipment.The equipment includes organic shell, mirror image distribution is rotatably connected on shell rotating rod, rotating rod is fixedly connected with fixed shell, fixed shell is provided with rotating shell, fixed shell and rotating shell are all fixedly connected with sliding rod, sliding ring is slidably connected with sliding rod, sliding ring close to rotating shell is fixedly connected with first connecting rod, sliding ring close to fixed shell is fixedly connected with second connecting rod, mirror image distribution first connecting rod is rotatably connected with measuring block, measuring block is provided with sprayer, mirror image distribution second connecting rod is rotatably connected with blowing shell.The present application is specially established for green anode cooling model related experiment design, switching of water cooling and spray cooling can be realized by adjusting sprayer, also can be realized by closing sprayer, opening blowing shell to realize air cooling operation to carbon block in the perfection of green anode cooling model, and then the feasibility of green anode cooling air cooling process is explored.

Description

Technical Field

[0001] This invention relates to the field of aluminum carbon technology, and in particular to a cooling device for green anode carbon blocks in aluminum electrolysis. Background Technology

[0002] In the production process of electrolytic aluminum anode carbon blocks, after the raw anode carbon blocks are kneaded and shaped, they need to be cooled before they can be stacked, transported, and put into the roasting process.

[0003] The mainstream cooling methods for green anodes in China are water bath and natural cooling. After the green anode carbon blocks are vibrated and formed, they are transported into the cooling water pool by plate chain, overhead chain or hanging frame, and after 30-150 minutes of water bath, they are discharged and enter the natural cooling stage of plate conveyor. At present, the green anode cooling processes of various companies are controlled according to traditional production experience, such as water bath cooling time, forming temperature and water temperature, without unified standards.

[0004] The mainstream green anode cooling process abroad is a combination of spray cooling and natural cooling, or pure natural cooling. After the green anode is vibrated and formed, compressed air is used to atomize softened water. The atomized water mist is sprayed onto the surface of the high-temperature green blank. Due to the small specific surface area of ​​the fine water mist particles, the forced convection heat transfer coefficient is large, and more heat is carried away, resulting in a better cooling effect. However, this cooling method is much more expensive than water bath cooling, and it is not widely used in domestic production.

[0005] Most importantly, in existing technologies, almost all carbon plants have not paid attention to the relationship between the quality problem (cracks) of anode carbon blocks and the cooling process, believing that there is no correlation. However, in our recent research and development, we have discovered that the strength of anode carbon blocks, as an important quality indicator, is related to the molding temperature, cooling time, and cooling temperature. We are also trying to find a method to establish a specific and feasible cooling model for green anodes.

[0006] The biggest technical challenge encountered during this research and development process was that the cooling production line could not be used as equipment for long-term experiments. This was because the process parameters of the production line were the parameters with the lowest defect rate and the most reliable quality accumulated over many years. Adjusting the parameters for research experiments would inevitably lead to the following problems: 1. The cooling line is relatively long, and its cooling time is related to the subsequent palletizing process. Currently, it is an automated program, and adjusting the cooling time requires synchronous matching with changes in the palletizing process, which is difficult to achieve on the production line. 2. While adjusting the circulating water temperature parameters seems convenient, the cooling water tank for the entire production line is over 30 meters long. The temperature rise and fall of the circulating water cannot be quickly reflected in the temperature rise and fall of the cooling water tank, and the temperature change of the tank still takes a long time. During the time between the initial temperature and reaching the target temperature, the impact of the produced anode carbon blocks on the final product quality due to the temperature change is unknown. Some of these anode products that fail to meet the standards can be eliminated during quality inspection, while some products that have a smaller impact and pass quality inspection may still require electrode replacement due to their shorter lifespan in subsequent electrode use, resulting in huge costs. 3. In the initial stage of establishing the green anode cooling model, in order to study the relationship between experimental elements, the actual green anode carbon block is usually scaled down proportionally to make a special experimental green anode carbon block for regularity study. After finding the general relationship between different elements, the actual green anode carbon block is used to conduct experiments. However, the production line capacity of the electrolysis plant is different at different times. On production lines with different capacities such as 200KA, 400KA, and 600KA, it is necessary to adapt the anode carbon blocks of different sizes to make electrodes. Therefore, a green anode cooling device that can meet the needs of various specifications of samples for experiments is required. 4. In general, research and development and production are separated in enterprises. Only after multiple successful pilot tests can the actual production be rolled out line by line. In the early stages of research and development, apart from laboratory equipment, existing parameters can only be collected on different production lines. It is not possible to ask the carbon plant to set production parameters as needed for research and development experiments.

[0007] The aforementioned issues directly impact our company's ability to investigate the relationship between anode carbon block quality and molding temperature, cooling time, and cooling temperature. Therefore, we require a small-scale cooling device that is suitable for experiments and allows for easy parameter adjustment. Considering the different processes used domestically and internationally, it would be best to combine water, mist, and air cooling methods.

[0008] In existing technologies, cooling equipment used in other industries typically employs a fixed angle between the water mist nozzle and the air blowing device. This makes it inadequate for establishing the correlation between experimental factors and product quality in research and development scenarios, easily leading to excessive cooling on one side of the charcoal block. Over long-term operation, this fixed-point cooling can cause thermal shock or thermal stress concentration, resulting in cracks in the charcoal block due to internal stress, affecting the quality of the finished product. This makes it impossible to determine whether the charcoal block quality is affected by experimental factors or by the fixed-point cooling.

[0009] Based on the problems in the aforementioned background technology, the researchers proposed a small-scale electrolytic aluminum green anode carbon block cooling device that is easy to adjust parameters in research and development experiments and can accommodate water, mist, and air cooling. Summary of the Invention

[0010] To overcome the above-mentioned shortcomings, the present invention provides a cooling device for the carbon blocks of the green anode in electrolytic aluminum production.

[0011] The technical solution is as follows: A cooling device for electrolytic aluminum anode carbon blocks includes a housing, a sliding door slidably connected to the housing, and mirror-distributed rotating rods rotatably connected to the housing. A fixed housing is fixed to the rotating rods, and a rotating housing is mounted on the fixed housing. Sliding rods are fixed to both the fixed housing and the rotating housing. Sliding rings are slidably connected to the sliding rods, and a tension spring is provided between the sliding rings and the sliding rods. A first connecting rod is fixed to the sliding ring near the rotating housing, and a second connecting rod is fixed to the sliding ring near the fixed housing. A measuring block is rotatably connected to the mirror-distributed first connecting rods, and a torsion spring is provided between the first connecting rod and the measuring block. A sprayer is mounted on the measuring block. A blowing shell is rotatably connected to the mirror-distributed second connecting rods, and a torsion spring is provided between the second connecting rod and the blowing shell. Arrayed rollers are provided on both the measuring block and the blowing shell.

[0012] Preferably, a first threaded rod with a mirror-distributed arrangement is fixedly connected to the sprayer, a first connecting frame with a mirror-distributed arrangement is fixedly connected to the measuring block, a first threaded shell is rotatably connected to the first connecting frame, and the first threaded rod is threadedly connected to the corresponding first threaded shell.

[0013] Preferably, the housing is fixedly connected to mirror-distributed fixed rods via a mounting bracket. The fixed rods are rotatably connected to corresponding rotating rods. The housing is equipped with a water supply pipe and an air supply pipe. The fixed rods are fixedly connected to both the water supply pipe and the air supply pipe. The water supply pipe is connected to the rotating shell via the fixed rods, and the air supply pipe is connected to the fixed shell via the fixed rods. The fixed shell and the rotating shell are respectively connected to adjacent sliding rods. One of the sliding rods of the rotating shell is connected to a connecting pipe, which is connected to the sprayer. One of the sliding rods of the fixed shell is connected to an air supply pipe, which is connected to the blower shell.

[0014] Preferably, a supply shell is fixedly connected to the sliding rod near the connecting pipe. A first adjusting ring and a pressure-reducing ring are slidably connected inside the supply shell. The first adjusting ring has evenly distributed through holes, some of which are equipped with one-way valves. A mirror-distributed force-supplying rod is fixedly connected to the first adjusting ring. The force-supplying rod is slidably connected to the pressure-reducing ring and the supply shell. The force-supplying rod is fixedly connected to a corresponding sliding ring. The supply shell is connected to an adjusting shell through mirror-distributed pipes. A second adjusting ring is fixedly connected to the adjusting shell. The second adjusting ring is used to compress the connecting pipe.

[0015] Preferably, a baffle is fixed to the blower housing to limit the wind direction.

[0016] Preferably, the fixing rod is fixedly connected to a connector, the connector is fixedly connected to a cooling shell, the cooling shell is fixedly connected to a fixing block, the fixing block is slidably connected to a second connecting frame, the second connecting frame is fixedly connected to a bearing block, the second connecting frame is fixedly connected to a second threaded rod, the fixing block is rotatably connected to a second threaded shell, and the second threaded shell is threadedly connected to the second threaded rod.

[0017] Preferably, the connector has three cavities. The connector is connected to mirror-distributed water inlet pipes, each of which is connected to the same adjacent cavity on an adjacent cooling shell. Uniformly distributed baffles are fixed inside the cooling shell. The connector is connected to a mirror-distributed first return water pipe and a mirror-distributed second return water pipe, both of which are connected to adjacent cavities on adjacent cooling shells. A drain pipe is fixed to the fixing rod, and the drain pipe is connected to the cavity on the cooling shell near the first and second return water pipes. The diameter of the first return water pipe is larger than that of the second return water pipe.

[0018] Preferably, it also includes a collection shell, which is connected to the housing and has an air inlet pipe. The housing is fixed to a heat exchange shell via a mounting bracket. The heat exchange shell is connected to the air inlet pipe and has an exhaust pipe and a drain pipe. Both the water supply pipe and the air supply pipe pass through the heat exchange shell.

[0019] Preferably, a partition plate is fixedly connected inside the heat exchange shell, which separates the water supply pipe and the air supply pipe. The air supply pipe passes through the partition plate, which has evenly distributed connecting holes.

[0020] Preferably, the sliding door is provided with a first air inlet hole that is evenly distributed, and the housing is provided with a second air inlet hole that is evenly distributed.

[0021] The beneficial effects of this invention are as follows: This invention uses a fixed shell and a rotating shell to continuously rotate and envelop the charcoal block for cooling, preventing excessive cooling on one side. The sprayer, by adjusting the water output, can spray water or mist onto the charcoal block. As the blowing shell moves, the airflow from the blowing shell assists in the evaporation of the water mist (i.e., accelerates heat exchange) to improve cooling efficiency and ensure the quality of the cooled charcoal block. The first and second adjusting rings work together to control the water mist spray pattern, ensuring that the amount of water mist sprayed closer to the edges of the charcoal block is reduced, preventing excessively rapid cooling of the edges and thus ensuring product quality. The heat exchange shell and partition plate recover and utilize the heat from the steam generated during cooling, increasing the temperature of the water and gas in the water and gas supply pipes, thereby reducing the probability of thermal shock to the charcoal block during subsequent cooling and ensuring the quality of the cooled charcoal block.

[0022] This invention specifically addresses the experimental design for establishing a green anode cooling model. By adjusting the sprayer, it allows for switching between water cooling and spray cooling. Furthermore, in later refinements of the green anode cooling model, the sprayer can be turned off while the blower shell is activated to achieve air cooling of the carbon blocks, thereby exploring the feasibility of air-cooling processes for green anode cooling. Compared to collecting fixed parameters in a green anode cooling production line, this invention allows for flexible, low-cost, and highly responsive adjustment of various experimental parameters, including cooling time, cooling temperature, and circulating water temperature. It can be adjusted almost instantly to meet experimental conditions and simulates cooling processes under both ideal and real-world environments, possessing high experimental value. It plays a crucial role in the current green anode cooling model and has irreplaceable value in future model refinement. It can also be fully applied in future explorations of green anode air-cooling processes, offering a high cost-performance ratio with multiple experimental scenarios after a single investment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the internal structure of the casing of the present invention; Figure 3 This is a three-dimensional structural diagram of the rotating rod and the fixed shell of the present invention; Figure 4 This is a three-dimensional structural diagram of the measuring block and sprayer of the present invention; Figure 5 This is a three-dimensional structural diagram of the sprayer and the first threaded rod of the present invention; Figure 6 This is a three-dimensional structural diagram of the first adjusting ring and the force supply rod of the present invention; Figure 7 This is a three-dimensional structural diagram of the water inlet pipe and the baffle plate of the present invention; Figure 8 This is a three-dimensional structural diagram of the second connecting frame and the bearing block of the present invention; Figure 9 This is a three-dimensional structural diagram showing the distribution of the spoiler positions in this invention; Figure 10 This is a three-dimensional structural diagram of the partition plate and the connecting hole of the present invention; Figure 11 For the present invention Figure 10 Enlarged view of the 3D structure at point A.

[0024] Component names and serial numbers in the diagram: 1. Housing, 2. Sliding door, 3. Rotating rod, 4. Fixed shell, 5. Rotating shell, 6. Sliding rod, 7. Sliding ring, 8. First connecting rod, 9. Second connecting rod, 10. Measuring block, 11. Sprayer, 12. Air blower shell, 13. First threaded rod, 14. First connecting frame, 15. First threaded shell, 16. Fixed rod, 161. Water supply pipe, 162. Air supply pipe, 163. Water discharge pipe, 17. Connecting pipe, 18. Supply shell, 19. First adjusting ring, 191. Pressure compensation ring 20. Power supply rod, 21. Adjusting shell, 22. Second adjusting ring, 23. Air supply pipe, 24. Baffle plate, 25. Connector, 26. Cooling shell, 27. Fixing block, 28. Second connecting frame, 29. Bearing block, 30. Second threaded rod, 31. Second threaded shell, 32. Water inlet pipe, 33. Baffle plate, 34. First return water pipe, 35. Second return water pipe, 36. Gathering shell, 37. Air inlet pipe, 38. Heat exchange shell, 39. Divider plate, 40. Connecting hole, 41. First air inlet hole, 42. Second air inlet hole. Detailed Implementation

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0026] Example 1 A cooling device for green anode carbon blocks in electrolytic aluminum is provided to solve the problem that the fixed angle of the carbon blocks during cooling affects the quality of the carbon blocks after cooling.

[0027] like Figures 1-6As shown, the cooling device includes a housing 1 with an arc-shaped upper surface to guide hot steam upwards. A sliding door 2 is slidably connected to the front of the housing 1. Two rotating rods 3, mirror-shaped and rotatably distributed, are rotatably connected to the housing 1. The rotating rods 3 can be connected to an external power source to drive their rotation. Fixed housings 4 are fixed to opposite sides of the two rotating rods 3. Rotating housings 5 ​​are mounted on the fixed housings 4. Sliding rods 6 are fixedly connected to and communicate with both the fixed housings 4 and the rotating housings 5. Sliding rings 7 are slidably connected to the sliding rods 6, and a tension spring is provided between them. A first connecting rod 8 is fixedly connected to the sliding ring 7 near the rotating housing 5, and a second connecting rod 9 is fixedly connected to the sliding ring 7 near the fixed housing 4. A measuring block 10 is rotatably connected between the two first connecting rods 8. A torsion spring is provided between the first connecting rods 8 and the measuring block 10 to ensure that the measuring block 10 always contacts and fixes the carbon block. A sprayer 11 is provided on the measuring block 10. The sprayer 11 is an existing device, and its internal structure is not shown in the diagram. A blower shell 12 is rotatably connected between the two second connecting rods 9. In the state shown in the diagram, the air nozzle of the blower shell 12 is located on the upper side. A torsion spring is provided between the second connecting rods 9 and the blower shell 12. A rotation self-locking mechanism (not shown in the diagram) is provided between the rotating shell 5 and the fixed shell 4 to adjust the angular difference between the sprayer 11 and the blower shell 12 in the circumferential direction. Rollers are arranged in an array on the side of the measuring block 10 and the blower shell 12 near the axis of the fixed shell 4 to reduce the probability of scratching the carbon block. Two first threaded rods 13 are fixedly connected to the sprayer 11 in a left-right mirror distribution. A first connecting frame 14 is fixedly connected to the measuring block 10 in a mirror distribution. A first threaded shell 15 is rotatably connected to the first connecting frame 14 and threadedly connected to the corresponding first threaded rod 13.

[0028] like Figures 2-6As shown, the housing 1 is fixedly connected to two mirror-distributed fixed rods 16 via a mounting bracket. The fixed rods 16 are rotatably connected to the corresponding rotating rods 3. The housing 1 is provided with a water supply pipe 161 and an air supply pipe 162. The fixed rods 16 are fixedly connected to both the water supply pipe 161 and the air supply pipe 162. Both the water supply pipe 161 and the air supply pipe 162 are T-joints. Two chambers are respectively provided inside the fixed rods 16 near the rotating shell 5 and the fixed shell 4. The chamber near the rotating shell 5 is connected to the water supply pipe 161, and the chamber near the fixed shell 4 is connected to the air supply pipe 162. Pipe 162 is connected to the water supply pipe 161, which is connected to the rotating shell 5 via the fixed rod 16. Air supply pipe 162 is connected to the fixed shell 4 via the fixed rod 16. The fixed shell 4 and the rotating shell 5 are respectively connected to the adjacent sliding rod 6. The sliding rod 6 of the right rotating shell 5 is connected to a connecting pipe 17, which is connected to the sprayer 11. The sliding rod 6 of the right fixed shell 4 is connected to an air supply pipe 23, which is connected to the blower shell 12. The connecting pipe 17 is a flexible pipe. A supply shell 18 is fixedly connected to the sliding rod 6 near the connecting pipe 17. The supply housing 18 is filled with hydraulic oil. A first adjusting ring 19 and a pressure-reducing ring 191 are slidably connected within the housing. The first adjusting ring 19 has evenly distributed through holes, some of which contain one-way valves. The flow direction of these one-way valves is from bottom to top only. A mirror-distributed power supply rod 20 is fixedly connected to the lower side of the first adjusting ring 19. The power supply rod 20 is slidably connected to the pressure-reducing ring 191, and the two are dynamically sealed. The power supply rod 20 is slidably connected to the supply housing 18 and fixedly connected to a corresponding sliding ring 7. The supply housing 18... The upper side is connected to the regulating shell 21 by two mirror-distributed pipes. The total flow area of ​​the connecting pipes between the two is greater than the total flow area of ​​the through holes on the first regulating ring 19 without a one-way valve. The inner circumference of the regulating shell 21 is fixedly connected to the second regulating ring 22, which is made of a deformable material. The second regulating ring 22 is used to squeeze the connecting pipe 17. The blower shell 12 is fixedly connected to the baffle plate 24, which is used to limit the range of cooling air blown out by the blower shell 12 and prevent the cooling air from affecting the water mist of the sprayer 11.

[0029] like Figures 3-9As shown, each of the two fixed rods 16 has a connector 25 fixed to its opposite side. The connector 25 is fixed to a cooling shell 26, and the cooling shell 26 is fixed to a fixing block 27. The fixing block 27 is slidably connected to a second connecting frame 28, which is fixed to a bearing block 29. The lower side of the bearing block 29 has two mirror-distributed inclined surfaces for guiding the measuring block 10 and the blower shell 12 to move to the lower side of the bearing block 29. The bearing block 29 is located below the cooling shell 26. The upper side of the second connecting frame 28 is fixed to a second threaded rod 30. The fixing block 27 is rotatably connected to a second threaded shell 31 threadedly connected to the second threaded rod 30. The connector 25 has three cavities: front, middle, and rear. The middle cavity of the connector 25 is connected to a mirror-distributed water inlet pipe 32. All water pipes 32 are connected to the cooling shell 26. Uniformly distributed baffles 33 are fixed inside the cooling shell 26. The baffles 33 are used to restrict the flow path of the cooling water inside the cooling shell 26, thereby improving its heat exchange effect. The front and rear cavities of the connector 25 are respectively connected to the first return water pipe 34 and the second return water pipe 35. A drain pipe 163 is fixed on the fixing rod 16. The drain pipe 163 is connected to both the front and rear cavities of the cooling shell 26. The inlet pipe 32 is located between the two first return water pipes 34 and the two second return water pipes 35. The diameter of the first return water pipe 34 is larger than the diameter of the second return water pipe 35. This is used to reduce the flow of cooling water closer to the periphery in the cooling shell 26, thereby improving the cooling uniformity. The first return water pipe 34 and the second return water pipe 35 are both connected to the cooling shell 26.

[0030] The working process of the installation structure in this embodiment is as follows: When this device is needed to cool the anode carbon block (hereinafter referred to as the carbon block), the user adjusts the relative rotation angle of the fixed shell 4 and the rotating shell 5 according to the size of the carbon block, connects the two rotating rods 3 to the external power source, first pulls the two sliding doors 2 open from both sides, and then adjusts the position of the support block 29 according to the size of the carbon block so that the cooling shell 26 is located in the middle area of ​​the side of the carbon block: the user rotates the second threaded shell 31, the second threaded shell 31 drives the second threaded rod 30 to move through the thread, the second threaded rod 30 drives the support block 29 to move through the second connecting frame 28 until the support block 29 moves to the preset position. The user adjusts the vertical distance between the sprayer 11 and the measuring block 10 as needed: the user rotates the two first threaded shells 15 at the same time, the first threaded shells 15 drive the first threaded rod 13 to move through the thread, the first threaded rod 13 drives the sprayer 11 to the designated position, and then the user rotates the measuring block 10 to make the measuring block 10 rotate to the horizontal (as shown in the figure), and at the same time the torsion spring between the first connecting rod 8 and the measuring block 10 stores force, at which point the adjustment is completed.

[0031] After adjustment, the user transports the carbon block to the two support blocks 29. At this time, the two cooling shells 26 come into contact with the carbon block. As the carbon block continues to move backward, it comes into contact with the blower shell 12, making the blower shell 12 vertical (as shown in the figure). At the same time, the torsion spring between the second connecting rod 9 and the blower shell 12 stores force. At this time, the measuring block 10 and the roller on the blower shell 12 both come into contact with the surface of the carbon block (contact is sufficient to prevent displacement). Then the user closes the two sliding doors 2. At this time, the carbon block loading step is completed.

[0032] After the charcoal blocks are loaded, the user drives the two rotating rods 3 to rotate slowly and synchronously using external power. The rotating rods 3 drive the fixed shell 4 and the rotating shell 5 and their parts to rotate synchronously. Taking the rotation process of the rotating shell 5 as an example, the rotating shell 5 drives the sliding rod 6 on it to rotate, and the sliding rod 6 drives the sliding ring 7 to rotate. The two sliding rings 7 drive the measuring block 10 to rotate synchronously through the first connecting rod 8. The measuring block 10 moves horizontally on the charcoal blocks, synchronously twisting the torsion spring between the first connecting rod 8 and the measuring block 10, and driving the sliding ring 7 to slide on the sliding rod 6. At this time, the sliding rod 6 rotates counterclockwise (right view direction). The user simultaneously starts the sprayer 11 (the externally supplied cooling water passes through the water supply pipe 161, fixed rod 16, and rotating rod 11). The moving shell 5, sliding rod 6, and connecting pipe 17 are conveyed into the sprayer 11. The sprayer 11 sprays water mist onto the carbon block and cools it. During the rotation, the blowing shell 12 works similarly (the gas supplied from the outside is conveyed into the blowing shell 12 through the air supply pipe 162, fixed rod 16, fixed shell 4, sliding rod 6, and air supply pipe 23). Through the cooperation of the sprayer 11 and the blowing shell 12, the carbon block is continuously rotated and wrapped for cooling, preventing the carbon block from being over-cooled on one side. The blowing shell 12 is located behind the moving path of the sprayer 11. That is, after the sprayer 11 sprays water mist onto the carbon block, as the blowing shell 12 moves, the airflow blown out from the blowing shell 12 assists in the evaporation of the water mist (i.e., accelerates heat exchange) to improve its cooling efficiency.

[0033] During the aforementioned cooling process (the edges are subjected to double cooling from both sides; if the spray volume is not limited, the edges will cool too quickly, resulting in uneven cooling and affecting the quality of the charcoal block), when the sprayer 11 moves from the middle of the upper side towards the front upper edge of the charcoal block, the sliding ring 7 moves upward along the sliding rod 6 under the drive of the first connecting rod 8. The sliding ring 7 drives the first adjusting ring 19 upward through the power supply rod 20. Due to the presence of the one-way valve on the first adjusting ring 19, only some through holes on the first adjusting ring 19 can allow hydraulic oil to flow. The upper part of the hydraulic oil on the first adjusting ring 19 flows into the adjusting shell 21 through the pipe, thereby squeezing the second adjusting ring 22. This causes the second adjusting ring 22 to squeeze the connecting pipe 17, reducing the flow area of ​​the connecting pipe 17 and thus suppressing the amount of water mist sprayed. That is, the amount of water mist sprayed gradually decreases from the middle to both sides to ensure uniform cooling. During the upward movement of the first adjusting ring 19, part of the hydraulic oil... Hydraulic oil flows downwards through a through-hole without a one-way valve to between the first adjusting ring 19 and the pressure-replenishing ring 191. During this process, the pressure-replenishing ring 191 moves upwards with the first adjusting ring 19 for a certain distance. As the amount of hydraulic oil between them increases, it descends relative to the first adjusting ring 19. When the sprayer 11 rotates to the front side of the carbon block, the tension spring between the sliding ring 7 and the sliding rod drives the sliding ring 7 to move away from the adjusting shell 21, thereby causing the first adjusting ring 19 to lose stable pressure supply to the second adjusting ring 22. The second adjusting ring 22 gradually resets, and the flow area of ​​the connecting pipe 17 gradually recovers, thereby increasing the spray volume as the sprayer 11 moves from the upper front edge of the carbon block to the middle front side. Through the cooperation of the first adjusting ring 19 and the second adjusting ring 22, the pattern of water mist spraying is controlled, so that the sprayer 11 sprays less water mist as it gets closer to the edge, preventing the carbon block edge from cooling too quickly, thus ensuring the quality of the finished product.

[0034] As the sprayer 11 rotates around the charcoal block to cool it, some of the cooling water flows synchronously through the fixed rod 16 into the central cavity of the connector 25. The cooling water in the central cavity of the connector 25 flows through the inlet pipe 32 into the cooling shell 26, thereby dissipating heat on the left and right sides of the charcoal block. The water in the cooling shell 26 flows back to the front and rear cavities of the connector 25 through the first return pipe 34 and the second return pipe 35, and is then discharged to the outside through the drain pipe 163, thus completing the heat dissipation on the left and right sides of the charcoal block.

[0035] Repeat the above process to dissipate heat from the carbon blocks until they reach the required level for the experiment. Then, remove the carbon blocks from housing 1 and allow them to cool naturally. If necessary, load other carbon blocks for heat dissipation until all experimental carbon blocks have completely cooled. At this point, the apparatus is complete.

[0036] In future explorations of establishing a green anode cooling model, another working scenario is to turn off the sprayer 11 and turn on the blower shell 12 to cool the carbon block separately by air. The current green anode cooling model does not consider the air cooling factor, so this working scenario will not be elaborated further.

[0037] Example 2 This embodiment discloses a cooling device for green anode carbon blocks in electrolytic aluminum, which is a further improvement on the device described in Embodiment 1.

[0038] The structure, connection relationship and working process of the installation structure in Example 1 will not be described again. The working principle of the following structure will be explained in detail.

[0039] like Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, it also includes a collection shell 36, which is connected to the upper side of the housing 1. An air inlet pipe 37 is connected to the upper side of the collection shell 36. A heat exchange shell 38 is fixedly connected to the housing 1 via a mounting bracket. The upper side of the heat exchange shell 38 is connected to the air inlet pipe 37. An exhaust pipe and a drain pipe are provided on the heat exchange shell 38. The exhaust pipe is located below the air inlet pipe 37 to ensure that the heat exchange shell 38 is filled with hot steam. Both the water supply pipe 161 and the air supply pipe 162 pass through the heat exchange shell 38, thereby exchanging heat with the hot steam inside the heat exchange shell 38. A partition plate 39 is fixedly connected inside the heat exchange shell 38, separating the water supply pipe 161 and the air supply pipe 162 (i.e., the water supply pipe 161 is separated from the air supply pipe 162). The portion inside the heat shell 38 is closer to the air inlet pipe 37 than the portion of the air supply pipe 162 inside the heat exchange shell 38. This is to ensure the heat exchange efficiency with the cooling water in the water supply pipe 161 (the thermal shock of water mist is greater than that of air at the same temperature). The air supply pipe 162 passes through the partition plate 39, which has evenly distributed connecting holes 40. The area of ​​all connecting holes 40 increases from top to bottom. The sliding door 2 has evenly distributed first air inlet holes 41, and the housing 1 has evenly distributed second air inlet holes 42. Both the first air inlet holes 41 and the second air inlet holes 42 are inclined through holes, and the inclination direction is downward from front to back.

[0040] The working process of the installation structure in this embodiment is as follows: Before cooling, connect the exhaust pipe and drain pipe of heat exchange shell 38 to the external collection system.

[0041] In the above embodiment, when the carbon block is cooled, the gas ejected by the rotating blower shell 12 forms a rotating airflow, and new dry gas is continuously injected into the casing 1 from the first air inlet 41 and the second air inlet 42, assisting the steam to move upward. The steam moves upward and flows into the air inlet pipe 37 under the guidance of the converging shell 36 (simultaneously with active extraction by the external collection system). The steam enters the heat exchange shell 38 through the air inlet pipe 37. The steam entering the heat exchange shell 38 first exchanges heat with the cooling water in the water supply pipe 161, thereby increasing the temperature of the cooling water in the water supply pipe 161 to prevent thermal shock during cooling from affecting the quality of the carbon block. At the same time, some steam passes through the continuous The gas flows through the through hole 40 to the right side of the partition plate 39 and exchanges heat with the gas in the gas supply pipe 162, thereby increasing the gas temperature in the gas supply pipe 162. Similarly, to prevent thermal shock, the steam and recondensed water after the heat exchange are drawn into the external collection system through the exhaust pipe and drain pipe on the heat exchange shell 38. The condensed water can be used for the above-mentioned cooling. The heat in the hot steam generated during the cooling process is recovered and utilized through the heat exchange shell 38 and the partition plate 39 to increase the temperature of water and gas in the water supply pipe 161 and the gas supply pipe 162, thereby preventing thermal shock to the carbon block during subsequent cooling and ensuring the quality of the carbon block after cooling.

[0042] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.

Claims

1. A cooling device for green anode carbon blocks in electrolytic aluminum production, characterized in that, Includes a housing (1), on which a sliding door (2) is slidably connected, and on which mirror-distributed rotating rods (3) are rotatably connected, and on which a fixed housing (4) is fixedly connected, and on which a rotating housing (5) is provided, and on which both the fixed housing (4) and the rotating housing (5) are fixedly connected sliding rods (6), and on which sliding rods (6) are slidably connected sliding rings (7), and on which a tension spring is provided between the sliding rings (7) and the sliding rods (6), and on which the sliding rings (7) near the rotating housing (5) are fixedly connected a first connecting rod (8 ... The sliding ring (7) of the fixed shell (4) is fixedly connected to the second connecting rod (9). The first connecting rod (8) distributed in a mirror image is rotatably connected to the measuring block (10). A torsion spring is provided between the first connecting rod (8) and the measuring block (10). A sprayer (11) is provided on the measuring block (10). The second connecting rod (9) distributed in a mirror image is rotatably connected to the blower shell (12). A torsion spring is provided between the second connecting rod (9) and the blower shell (12). Rollers are arranged in an array on both the measuring block (10) and the blower shell (12). The sprayer (11) is fixedly connected to a first threaded rod (13) with a mirror distribution, and the measuring block (10) is fixedly connected to a first connecting frame (14) with a mirror distribution. A first threaded shell (15) is rotatably connected to the first connecting frame (14), and the first threaded rod (13) is threadedly connected to the corresponding first threaded shell (15). The housing (1) is fixed with mirror-distributed fixing rods (16) by a mounting bracket. The fixing rod (16) is fixedly connected to the connector (25), the connector (25) is fixedly connected to the cooling shell (26), the cooling shell (26) is fixedly connected to the fixing block (27), the fixing block (27) is slidably connected to the second connecting frame (28), the second connecting frame (28) is fixedly connected to the bearing block (29), the second connecting frame (28) is fixedly connected to the second threaded rod (30), the fixing block (27) is rotatably connected to the second threaded shell (31), and the second threaded shell (31) is threadedly connected to the second threaded rod (30).

2. The electrolytic aluminum green anode carbon block cooling device according to claim 1, characterized in that, The fixed rod (16) is rotatably connected to the corresponding rotating rod (3). The housing (1) is provided with a water supply pipe (161) and an air supply pipe (162). The fixed rod (16) is fixedly connected to both the water supply pipe (161) and the air supply pipe (162). The water supply pipe (161) is connected to the rotating shell (5) through the fixed rod (16). The air supply pipe (162) is connected to the fixed shell (4) through the fixed rod (16). The fixed shell (4) and the rotating shell (5) are respectively connected to the adjacent sliding rod (6). The sliding rod (6) of one of the rotating shells (5) is connected to a connecting pipe (17). The connecting pipe (17) is connected to the sprayer (11). The sliding rod (6) of one of the fixed shells (4) is connected to an air supply pipe (23). The air supply pipe (23) is connected to the blower shell (12).

3. The electrolytic aluminum green anode carbon block cooling device according to claim 2, characterized in that, A supply shell (18) is fixedly connected to the sliding rod (6) near the connecting pipe (17). A first adjusting ring (19) and a pressure-reducing ring (191) are slidably connected inside the supply shell (18). The first adjusting ring (19) is provided with uniformly distributed through holes, some of which are provided with one-way valves. A mirror-distributed force-supplying rod (20) is fixedly connected to the first adjusting ring (19). The force-supplying rod (20) is slidably connected to the pressure-reducing ring (191). The force-supplying rod (20) is slidably connected to the supply shell (18). The force-supplying rod (20) is fixedly connected to the corresponding sliding ring (7). The supply shell (18) is connected to an adjusting shell (21) through mirror-distributed pipes. A second adjusting ring (22) is fixedly connected to the adjusting shell (21). The second adjusting ring (22) is used to squeeze the connecting pipe (17).

4. The electrolytic aluminum green anode carbon block cooling device according to claim 3, characterized in that, A baffle plate (24) is fixedly attached to the blower housing (12), and the baffle plate (24) is used to limit the wind direction.

5. The electrolytic aluminum green anode carbon block cooling device according to claim 4, characterized in that, The connector (25) has three cavities. The connector (25) is connected to mirror-distributed water inlet pipes (32). Each mirror-distributed water inlet pipe (32) is connected to the same adjacent cavity on the adjacent cooling shell (26). The cooling shell (26) is fixed with uniformly distributed baffles (33). The connector (25) is connected to a mirror-distributed first return water pipe (34) and a mirror-distributed second return water pipe (35). Both the first return water pipe (34) and the second return water pipe (35) are connected to adjacent cavities on the adjacent cooling shell (26). The fixing rod (16) is fixed with a drain pipe (163). The drain pipe (163) is connected to the cavity on the cooling shell (26) near the first return water pipe (34) and the second return water pipe (35). The diameter of the first return water pipe (34) is larger than the diameter of the second return water pipe (35).

6. The electrolytic aluminum green anode carbon block cooling device according to claim 5, characterized in that, It also includes a collection shell (36), which is connected to the housing (1). The collection shell (36) is connected to an air inlet pipe (37). The housing (1) is fixed to a heat exchange shell (38) by a mounting bracket. The heat exchange shell (38) is connected to the air inlet pipe (37). The heat exchange shell (38) is provided with an exhaust pipe and a drain pipe. The water supply pipe (161) and the air supply pipe (162) both pass through the heat exchange shell (38).

7. The electrolytic aluminum green anode carbon block cooling device according to claim 6, characterized in that, A partition plate (39) is fixedly connected inside the heat exchange shell (38). The partition plate (39) separates the water supply pipe (161) and the air supply pipe (162). The air supply pipe (162) passes through the partition plate (39). The partition plate (39) is provided with evenly distributed connecting holes (40).

8. The electrolytic aluminum green anode carbon block cooling device according to claim 7, characterized in that, The sliding door (2) is provided with a first air inlet (41) that is evenly distributed, and the housing (1) is provided with a second air inlet (42) that is evenly distributed.

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