A mobile electrolytic cell covering material suction and transfer device

Abstract

The utility model relates to the field of aluminium electrolysis especially relates to a mobile electrolytic cell covering material suction transfer device, including the trolley, be provided with cyclone dust collector, cloth bag dust remover and hot -blast cooler on the trolley, the air inlet of cyclone dust collector is connected with the suction material pipeline, the air outlet of cyclone dust collector is connected with the air inlet of cloth bag dust remover through the conveying pipeline, is provided with hot -blast cooler on the conveying pipeline, the discharge gate of cyclone dust collector bottom and the discharge gate of cloth bag dust remover bottom all install the discharge control valve, and the outlet of discharge control valve is connected with screw conveyer, the utility model has realized the high -efficient suction of electrolytic cell anode covering material, has guaranteed the stable high -efficient operation of electrolytic cell, has reduced the labor intensity and operation efficiency of operating personnel, and this device has a series of points such as low operating cost, actual application effect is good, applicability is good, maintenance cost is low, can be widely applied in the suction work of electrolytic aluminium enterprise electrolytic cell anode upper covering material.

Description

Technical Field

[0001] This utility model relates to the field of aluminum electrolysis, and in particular to a mobile electrolytic cell covering material suction and transfer device. Background Technology

[0002] In the aluminum electrolysis production process, alumina is applied to the upper part of the anode in the electrolytic cell. This serves to reduce heat loss, prevent air oxidation, reduce fluoride volatilization, and stabilize the electrolyte. However, excessive amounts of this covering material entering the electrolytic cell can affect its current efficiency and increase energy consumption. It may also accumulate in certain parts of the cell, increasing the risk of blockage at the alumina and other raw material feed ports, interfering with the stable operation of the electrolysis process. Furthermore, it can accumulate significant impurities in the electrolyte or aluminum, affecting the purity of the aluminum product and negatively impacting subsequent processing performance. Simultaneously, it alters the reaction environment around the anode, changing the reaction rate and uniformity between the anode and electrolyte, shortening the anode's lifespan, and increasing production costs.

[0003] The main process by which covering material enters the electrolytic cell is during anode replacement. Current processes often involve personnel using shovels to move the covering material around the anode to another location. This method is problematic because it doesn't ensure thorough cleaning, allowing some covering material to remain in the electrolytic cell. Furthermore, it involves high labor intensity, requiring workers to be in a high-temperature environment for extended periods. Additionally, it carries the risk of burns from the hot covering material. Therefore, a mobile, efficient, and high-quality device is needed to extract and transfer the high-temperature covering material from the top of the anode in the electrolytic cell. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a mobile electrolytic cell covering material suction and transfer device. This utility model adopts the following technical solution:

[0005] This utility model provides a mobile electrolytic cell cover material suction and transfer device, including a traction trolley, on which a cyclone separator, a bag filter, and a hot air cooler are installed; the air inlet of the cyclone separator is connected to the suction pipe, and the air outlet of the cyclone separator is connected to the air inlet of the bag filter through a conveying pipe, on which a hot air cooler is installed; a discharge control valve is installed on the discharge port at the bottom of the cyclone separator and the discharge port at the bottom of the bag filter, and the outlet of the discharge control valve is connected to a screw conveyor.

[0006] Preferably, a hopper arch breaker is provided inside the cyclone separator near the bottom discharge port, and the hopper arch breaker is connected to the top of the cyclone separator via a suspension rod.

[0007] Preferably, the hot air cooler includes a cooling pipe housing, with an upper chamber at the top and a lower chamber at the bottom. The upper chamber is connected to the conveying pipe located on the upper side, and the lower chamber is connected to the conveying pipe located on the lower side.

[0008] The cooling pipe housing has several vertically spaced array cooling pipes in the middle, and the two ends of the array cooling pipes are respectively connected to the upper chamber and the lower chamber.

[0009] The cooling pipe housing has open structures on both the left and right sides, and a cooling fan is installed at one of the open sides of the cooling pipe housing.

[0010] Preferably, the air outlet of the bag filter is connected to a negative pressure generating device, which is mounted on the traction trolley.

[0011] Preferably, the negative pressure generating device includes a main air duct one, a vibration damper, a main air valve, and a main air duct two; the main air duct one, the vibration damper, the main air valve, and the main air duct two are sequentially connected together, the air inlet end of the main air duct one is connected to the air outlet of the bag filter, the air outlet end of the main air duct two is connected to the air inlet of the Roots blower, and a Roots blower silencer is installed on the air outlet of the Roots blower; a bypass ventilation duct is provided on the main air duct two, a bypass ventilation valve is installed on the bypass ventilation duct, and a bypass filter is installed on the air inlet end of the bypass ventilation duct.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This invention enables efficient removal of the anode covering material from electrolytic cells, ensuring stable and efficient operation of the electrolytic cells. It also reduces the labor intensity and work efficiency of operators. The device has a series of advantages such as low operating cost, good practical application effect, good applicability, and low maintenance cost. It can be widely used in the removal of the covering material on the upper part of the anode of electrolytic cells in aluminum electrolytic enterprises. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of the mobile electrolytic cell covering material suction and transfer device of this utility model;

[0016] Figure 2 This is a front view of the hot air cooler of this utility model;

[0017] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0018] Figure 4This is a schematic diagram of the structure of the hot air cooler of this utility model;

[0019] Figure 5 This is a schematic diagram of the negative pressure generating device of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Traction trolley; 2. Cyclone separator; 3. Suction pipe; 4. Conveying pipe; 5. Bag filter; 6. Hot air cooler; 601. Cooling pipe housing; 602. Upper chamber; 603. Lower chamber; 604. Array cooling pipe; 605. Cooling fan; 7. Screw conveyor; 8. Hopper arch breaker; 9. Suspension rod; 10. Negative pressure generating device; 1001. Roots blower; 1002. Bypass filter; 1003. Vibration damper; 1004. Roots blower silencer; 1005. Main air duct one; 1006. Main air valve; 1007. Main air duct two; 1008. Bypass ventilation duct; 1009. Bypass ventilation valve; 11. Discharge control valve. Detailed Implementation

[0021] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 As shown in the figure, this embodiment discloses a mobile electrolytic cell cover material suction and transfer device, including a traction trolley 1, which is equipped with a traction hook and wheels. The traction trolley 1 is equipped with a cyclone separator 2, a bag filter 5 and a hot air cooler 6.

[0023] The air inlet of the cyclone separator 2 is connected to the suction pipe 3, and the air outlet of the cyclone separator 2 is connected to the air inlet of the bag filter 5 through the conveying pipe 4. A hot air cooler 6 is installed on the conveying pipe 4. A discharge control valve 11 is installed on the discharge port at the bottom of the cyclone separator 2 and the discharge port at the bottom of the bag filter 5. The outlet of the discharge control valve 11 is connected to the screw conveyor 7.

[0024] A hopper arch breaker 8 is installed inside the cyclone separator 2 near the bottom discharge port. The hopper arch breaker 8 prevents material from bridging and affecting discharge. The hopper arch breaker 8 is connected to the top of the cyclone separator 2 via a suspension rod 9. In this embodiment, the suspension rod 9 is threaded to the top of the cyclone separator 2; that is, the suspension rod 9 has external threads, and the top of the cyclone separator 2 has a threaded hole. A square head can be fixedly connected to the upper end of the suspension rod 9. Rotating the square head with a wrench will cause the entire suspension rod 9 to rotate.

[0025] like Figures 2 to 4As shown, the hot air cooler 6 includes a cooling pipe housing 601. The top of the cooling pipe housing 601 is provided with an upper chamber 602 and the bottom is provided with a lower chamber 603. The upper chamber 602 is connected to the upper side conveying pipe 4, and the lower chamber 603 is connected to the lower side conveying pipe 4.

[0026] The cooling pipe housing 601 has several vertically spaced array cooling pipes 604 arranged in the middle. The two ends of the array cooling pipes 604 are connected to the upper chamber 602 and the lower chamber 603, respectively. The left and right sides of the cooling pipe housing 601 are open structures. A cooling fan 605 is installed at one of the open sides of the cooling pipe housing 601. The cooling fan 605 can blow air to cool the array cooling pipes 604.

[0027] like Figure 1 and 5 As shown, the air outlet of the bag filter 5 is connected to the negative pressure generating device 10, which is mounted on the traction trolley 1.

[0028] The negative pressure generating device 10 includes a main air duct 1005, a vibration damper 1003, a main air valve 1006, and a second main air duct 1007. The main air duct 1005, vibration damper 1003, main air valve 1006, and second main air duct 1007 are sequentially connected together. The air inlet of the main air duct 1005 is connected to the air outlet of the bag filter 5, and the air outlet of the second main air duct 1007 is connected to the air inlet of the Roots blower 1001. A Roots blower silencer 1004 is installed on the air outlet of the Roots blower 1001. A bypass ventilation duct 1008 is installed on the second main air duct 1007, a bypass ventilation valve 1009 is installed on the bypass ventilation duct 1008, and a bypass filter 1002 is installed on the air inlet of the bypass ventilation duct 1008.

[0029] The working process of this utility model is as follows:

[0030] This utility model features a traction trolley 1, which can be moved by a towing device. The towing vehicle can be selected according to the vehicle conditions at the production site, thereby realizing the switching of electrolytic cell material suction operations. Simultaneously, this utility model uses PLC program control to realize the equipment's start-up, material suction operation, material discharge operation, and shutdown. In this embodiment, the bypass ventilation valve 1009, main air valve 1006, and discharge control valve 11 are all electrically controlled valves, which can be electrically connected to the PLC.

[0031] 1. Equipment Start-up

[0032] When the equipment starts up, the bypass ventilation valve 1009 is open and the main air valve 1006 is closed. Material suction can only be performed after the Roots blower 1001 has started normally. This allows the Roots blower to start under no-load conditions, preventing equipment tripping caused by excessive starting current during load startup. A bypass filter 1002 is installed in the bypass ventilation pipe 1008 to prevent solid particles in the environment from entering the Roots blower and damaging the equipment.

[0033] 2. Material suction operation

[0034] After the equipment starts normally, press the suction operation button. The main air valve 1006 opens. After the main air valve 1006 is fully open, the bypass ventilation valve 1009 closes, and the equipment enters the suction operation state. The suction pipe 3 is a steel wire fiberglass hose. Under the action of negative pressure, the material is tangentially sucked into the cyclone separator 2. At this time, under the action of the spiral force outside the hopper, the granular material settles and falls to the bottom of the cyclone separator 2. The air and a small amount of dust enter the hot air cooler 6 through the conveying pipe 4 at the top of the hopper under the action of the spiral force inside the hopper. The cyclone separator 2 is equipped with a hopper arch breaker 8. The hopper arch breaker 8 has a conical structure to prevent the material in the hopper from arching due to gravity. At the same time, the hopper arch breaker 8 is connected to the suspension rod 9. By rotating the suspension rod 9, the hopper arch breaker 8 can be moved up and down to control the material discharge rate in the hopper.

[0035] When the mixture of air and a small amount of dust enters the hot air cooler 6, it is divided into several small-flow, low-speed fluids by the array cooling pipes 604 in the hot air cooler 6. Under the action of the side cooling fan 605, the temperature is reduced to below 150°C. Then, it is collected through the lower chamber 603 at the bottom of the hot air cooler and enters the bag filter 5 through the conveying pipe 4 located at the bottom. During the material suction operation, the bag filter 5 operates at regular intervals. Under the filtration action of the dust collection bags, the dust and air are separated. The dust settles to the bottom of the bag filter, and the air enters the Roots blower 1001 through the main air duct 1005 and the main air duct 2 1007 and is discharged through the Roots blower silencer 1004.

[0036] 3. Material discharge operation

[0037] When the material in the cyclone dust collector hopper or bag filter reaches a certain amount, a discharge operation is required; otherwise, the suction operation will not be able to proceed normally. Press the discharge button, and the bypass ventilation valve 1009 opens. After the bypass ventilation valve 1009 is fully open, the main air valve 1006 closes. At this time, the Roots blower 1001 is in an unloaded state, and the screw conveyor 7 starts running. After a 10-second delay, the discharge control valve 11 at the bottom of the cyclone separator 2 and the discharge port, as well as the discharge control valve 11 at the bottom of the bag filter 5, begin the discharge operation, and the material is discharged from the tail discharge port of the screw conveyor 7. After the discharge is completed, press the discharge end button, and each actuator will operate in the reverse order of the discharge action to continue the suction operation.

[0038] 4. Equipment stopped

[0039] When the material suction operation is completed, press the equipment stop button. The side ventilation valve 1009 will open. After the side ventilation valve 1009 is fully open, the main air valve 1006 will close. When the main air valve 1006 is fully closed, the Roots blower 1001 will stop running.

[0040] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A mobile electrolytic cell covering material suction and transfer device, characterized in that: Includes a traction trolley (1), which is equipped with a cyclone separator (2), a bag filter (5) and a hot air cooler (6). The air inlet of the cyclone separator (2) is connected to the suction pipe (3), and the air outlet of the cyclone separator (2) is connected to the air inlet of the bag filter (5) through the conveying pipe (4). A hot air cooler (6) is installed on the conveying pipe (4). The discharge outlets at the bottom of the cyclone separator (2) and the bottom of the bag filter (5) are both equipped with discharge control valves (11), and the outlet of the discharge control valves (11) is connected to the screw conveyor (7).

2. The mobile electrolytic cell cover material suction and transfer device according to claim 1, characterized in that: The cyclone separator (2) is equipped with a hopper arch breaker (8) near the bottom outlet. The hopper arch breaker (8) is connected to the top of the cyclone separator (2) via a suspension rod (9).

3. The mobile electrolytic cell cover material suction and transfer device according to claim 1, characterized in that: The hot air cooler (6) includes a cooling pipe box (601), the top of which is provided with an upper chamber (602) and the bottom with a lower chamber (603). The upper chamber (602) is connected to the conveying pipe (4) located on the upper side, and the lower chamber (603) is connected to the conveying pipe (4) located on the lower side. The cooling pipe housing (601) is provided with a number of vertically spaced array cooling pipes (604) in the middle, and the two ends of the array cooling pipes (604) are respectively connected to the upper chamber (602) and the lower chamber (603). The cooling pipe housing (601) has an open structure on both the left and right sides, and a cooling fan (605) is installed at the open side of one of the cooling pipe housings (601).

4. The mobile electrolytic cell cover material suction and transfer device according to claim 1, characterized in that: The air outlet of the bag filter (5) is connected to the negative pressure generating device (10), which is mounted on the traction trolley (1).

5. The mobile electrolytic cell cover material suction and transfer device according to claim 4, characterized in that: The negative pressure generating device (10) includes a main air duct one (1005), a shock absorber (1003), a main air valve (1006), and a main air duct two (1007); the main air duct one (1005), the shock absorber (1003), the main air valve (1006), and the main air duct two (1007) are installed and connected together in sequence. The air inlet end of the main air duct one (1005) is connected to the air outlet of the bag filter (5), and the air outlet end of the main air duct two (1007) is connected to the air inlet of the Roots blower (1001). A Roots blower silencer (1004) is installed on the air outlet of the Roots blower (1001). A bypass ventilation pipe (1008) is provided on the main air duct (1007), a bypass ventilation valve (1009) is installed on the bypass ventilation pipe (1008), and a bypass filter (1002) is installed on the air inlet end of the bypass ventilation pipe (1008).

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