Ladle aluminum suction system with vacuumizing negative pressure device

Abstract

A two-man ladle aluminum suction system with a vacuumizing negative pressure device comprises a two-man ladle, a vacuumizing device and a crown block, the crown block comprises two guide rails arranged in the distribution direction of electrolytic cells, end beams are arranged on the guide rails in a sliding mode, the two end beams are connected through two parallel cross beams, and a vehicle body sliding in the length direction of the two cross beams is arranged on the two cross beams. And a vacuumizing device is arranged at the same ends of the two cross beams, and the vacuumizing device is connected with the two-man ladle through an air exhaust pipeline. According to the utility model, the two-man ladle and the vacuumizing equipment are moved together, so that the vacuum equipment pipeline on the vacuumizing equipment can be directly connected with the two-man ladle, the operation of replacing a vacuum pipeline joint due to the position movement of the two-man ladle is reduced, the labor intensity caused by moving the vacuum pipeline can be reduced, and the working efficiency is improved. And meanwhile, friction of the vacuum pipeline on the ground is reduced, and operation of workers is easier and more convenient.

Description

Technical Field

[0001] The utility model of the invention relates to the technical field of electrolytic aluminum, in particular to a ladle lifting and aluminum suction system with a vacuum negative pressure device. Background Art

[0002] At present, in the aluminum electrolysis production process, a vacuum negative pressure ladle is usually hoisted by a crane, and the vacuum pumping device is connected to the ladle through a vacuum pipe. When the aluminum suction tube is inserted into the aluminum liquid at the bottom of the electrolytic cell, the vacuum pumping device draws air through the vacuum pipe to form a negative pressure in the ladle cavity to extract the aluminum liquid in the electrolytic cell.

[0003] Generally, an electrolytic aluminum workshop has a total high-power air compression device to provide vacuum suction. At the same time, in order to facilitate the suction of aluminum liquid in the electrolytic cell, a vacuum negative pressure joint connected to the air compression equipment is installed near every two electrolytic cells to facilitate the connection with the table bag. However, a lifting bag needs to extract aluminum liquid from 2-3 electrolytic cells, so the vacuum negative pressure joint needs to be replaced many times. When replacing the vacuum negative pressure joint, the staff needs to drag the vacuum pipe to the corresponding vacuum negative pressure joint for connection. Because the moving distance is long, the labor intensity of employees dragging the pipe is high. At the same time, the pipe is often dragged on the ground, and friction and wear are easy to damage and leak. Pipeline leakage often affects the vacuum degree and affects the aluminum extraction operation. Utility Model Content

[0004] The utility model of the present invention aims to provide a lifting bag aluminum suction system with a vacuum negative pressure device. The vacuum device can move with the lifting bag, reduce the friction between the vacuum pipeline and the ground, and reduce the labor intensity of the staff.

[0005] In order to solve the above technical problems, the specific solution adopted by the utility model of the present invention is: a lifting ladle aluminum suction system with a vacuum negative pressure device, including a lifting ladle, a vacuum device and an overhead crane, the overhead crane includes two guide rails arranged along the distribution direction of the electrolytic cells, and end beams are slidably provided on the guide rails. The two end beams are connected by two parallel cross beams, and the two cross beams are provided with a car body sliding along the length direction thereof. The car body can be used for hanging the lifting ladle, and also includes a moving mechanism for carrying the vacuum device to move with the lifting ladle, and the vacuum device is connected to the lifting ladle through an exhaust pipe.

[0006] As a further optimization of the aluminum-absorbing system of the lifting bag with a vacuum negative pressure device of the utility model, the moving mechanism is a beam, and the vacuum device is arranged at the same end of two beams.

[0007] As a further optimization of the utility model, a ladle aluminum suction system with a vacuum negative pressure device is provided. Two cross beams are provided with a tube collecting rack, which includes a rotating shaft, a shaft seat supporting the rotation of the rotating shaft and two limit plates fixedly sleeved on the rotating shaft. The shaft seat is fixed to the cross beam through a fixed frame body. The rotating shaft is a hollow structure. The air outlet end of the exhaust pipe is connected with the interior of the rotating shaft. A connecting pipe connected with the interior is provided at the portion of the rotating shaft located between the two limit plates. The end of the connecting pipe facing away from the rotating shaft is wound around the rotating shaft and connected with the vacuum suction port of the ladle. A power unit for driving the rotating shaft to rotate is provided on the tube collecting rack.

[0008] As a further optimization of the utility model of a ladle aluminum suction system with a vacuum negative pressure device, the moving mechanism is a ground walking trolley, and the vacuum device is fixed on the ground walking trolley.

[0009] As a further optimization of the utility model, a ladle aluminum suction system with a vacuum negative pressure device is provided on the ground walking trolley, and the tube collecting rack comprises a rotating shaft, an axle seat supporting the rotation of the rotating shaft, and two limit plates fixedly sleeved on the rotating shaft, and the axle seat is fixed to the ground walking trolley through a fixed frame body, and the rotating shaft is a hollow structure, and the air outlet end of the exhaust pipe is connected with the interior of the rotating shaft, and a connecting pipe connected with the interior is provided at the portion of the rotating shaft located between the two limit plates, and the end of the connecting pipe facing away from the rotating shaft is wound around the rotating shaft and connected with the vacuum suction port of the ladle, and a power unit for driving the rotating shaft to rotate is provided on the tube collecting rack.

[0010] As a further optimization of the utility model, a ladle aluminum suction system with a vacuum negative pressure device, the vacuum device includes a vacuum storage filter device, an air suction device and a motor which are arranged in sequence. The vacuum storage filter device is provided with an air inlet for connecting with the ladle. The vacuum storage filter device and the air suction device are connected by an air pipe, and the air suction device is connected to the motor by transmission.

[0011] As a further optimization of the aluminum lifting system with a vacuum negative pressure device of the utility model, the vacuum storage and filtering equipment is a cyclone dust collector or a bag dust collector.

[0012] As a further optimization of the utility model, a ladle aluminum suction system with a vacuum negative pressure device is described. The vacuum storage filtering equipment is a wet filter, which includes a tank body. The air inlet is arranged on the side wall of the tank body. There is water in the tank body. A water supply pipe with a valve and a pump air inlet pipe connected to the air suction equipment are arranged on the top side wall of the tank body. A sewage pipe is arranged at the bottom of the tank body. A water level display device is arranged on the side wall of the tank body. A horizontally placed main air pipe connected to the air inlet lumen is arranged in the tank body. The main air pipes are arranged in parallel along the height direction of the tank body and the lumens are connected through auxiliary air pipes. Bronchi are arranged in parallel on the main air pipes along the length direction. The main air pipes and the lumens of the bronchi are connected. The bronchi are always in water and a plurality of evenly distributed openings are opened on the bronchi.

[0013] As a further optimization of the utility model, a ladle aluminum suction system with a vacuum negative pressure device is provided, the vacuum storage filtering equipment is a dry filter, the dry filter comprises a tank body, the air inlet is arranged on the side wall of the tank body, a pump air inlet pipe for connecting to the vacuum equipment is arranged on the other side wall of the tank body, and a multi-layer filter screen is arranged in the tank body in a horizontal or vertical direction with the bottom of the tank body.

[0014] As a further optimization of the aluminum-lifting system with a vacuum negative pressure device of the utility model, the filter screen is flat or cylindrical.

[0015] As a further optimization of the utility model, a ladle lifting aluminum suction system with a vacuum negative pressure device, the air extraction equipment is a vacuum pump, a blower or a powerful exhaust fan.

[0016] As a further optimization of the utility model of a ladle aluminum suction system with a vacuum negative pressure device, the air suction equipment is a water ring type water ring vacuum pump, a pump exhaust pipe is arranged on the top of the water ring vacuum pump, the water ring vacuum pump is connected to a water tank through the pump exhaust pipe, and the bottom of the water ring vacuum pump and the water tank are connected through a water pipe, an exhaust port is arranged on the top of the water tank, a water supply port with a valve is arranged on the top of the side wall of the water tank, and a sewage outlet is arranged at the bottom of the water tank.

[0017] The utility model has the following beneficial effects:

[0018] First, the utility model moves the lifting bag and the vacuum equipment together, so that the vacuum equipment pipeline on the vacuum equipment can be directly connected to the lifting bag, which reduces the operation of replacing the vacuum pipeline joint due to the movement of the lifting bag, can reduce the labor intensity caused by moving the vacuum pipeline, and reduce the friction of the vacuum pipeline on the ground, making it easier for the staff to operate;

[0019] 2. In the preferred example of the utility model, a pipe collecting rack is provided on the vehicle body, through which the suspended connecting pipe can be rolled up, which is convenient for management, avoids the suspended connecting pipe from interfering with the work of the staff, and improves safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the aluminum absorption system of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the connection between the rotating shaft and the shaft seat;

[0023] Figure 4It is a schematic diagram of the structure of the vacuum device in Example 1;

[0024] Figure 5 It is a schematic diagram of the structure of the vacuum device in Example 3;

[0025] Figure 6 It is a schematic diagram of the structure of the vacuum device in Example 4;

[0026] Figure 7 is a schematic structural diagram of the vacuum device in Example 5;

[0027] Figure 8 is a schematic diagram of the structure of the vacuum device in Example 6;

[0028] Figure numerals: 1, lifting bag, 2, cyclone dust collector, 3, water ring vacuum pump, 4, motor, 5, water tank, 6, air inlet, 7, pump air inlet pipe, 8, pump exhaust pipe, 9, pipe collection rack, 901, shaft seat, 902, limit plate, 903, connecting pipe, 904, rotating shaft, 905, fixed frame, 906, driving wheel, 907, motor, 10, exhaust port, 11, water supply port, 12, sewage outlet, 13, overhead crane, 1301, horizontal Beam, 1302, car body, 1303, guide rail, 1304, end beam, 14, blower, 15, wet filter, 1501, main air pipe, 1502, auxiliary air pipe, 1503, bronchial pipe, 16, dry filter, 1601, multi-layer filter screen, 17, lifting rope, 21, exhaust pipe, 22, vacuum device, 23, water inlet pipe, 24, water outlet pipe, 25, connecting flange, 26, sealing ring gasket, 27, ring groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Example 1

[0031] like Figure 1-4As shown, this embodiment provides a ladle aluminum suction system with a vacuum negative pressure device, including a ladle 1, a vacuum device 22 and a crane 13. The crane 13 includes two guide rails 1303 arranged along the distribution direction of the electrolytic cells. The guide rails 1303 are arranged on the upper part of the workshop wall. The guide rails 1303 are slidably provided with end beams 1304. The tops of the two end beams 1304 are connected by two cross beams 1301. The two cross beams 1301 are provided with a car body 1302 sliding along its length direction. The car body 1302 is connected to the ladle 1. By controlling the movement of the car body 1302, the ladle 1 is moved, and the aluminum liquid in the electrolytic cells at different positions is extracted. In this embodiment, the ladle 1 is connected to the car body 1302 by two suspension ropes 17. In addition, other existing technologies are also used to fix the ladle 1 on the car body 1302. At the same time, the crane 13 also belongs to the existing technology, and the control of the vertical beam 1304 and the movement of the car body 1302 are all existing technologies.

[0032] In this embodiment, the vacuum device 22 is fixedly mounted at one end of the two end beams 1304, and the vacuum device 22 is connected to the lifting bag 1 through the air extraction pipe 21. The vacuum device 22 is arranged on the end beam 1304, so that the vacuum device 22 can move with the lifting bag 1. During this process, the air extraction pipe 21 of the vacuum device 22 is always connected with the lifting bag 1, avoiding the situation where the vacuum negative pressure joint needs to be replaced many times. Secondly, because the vehicle body 1302 and the vacuum device 22 are both on the end beam 1304, and the distance between the two is not large, the air extraction pipe 21 is suspended above the workshop, and the pipe can be prevented from contacting the ground when the aluminum suction operation is performed, thereby reducing the friction between the air extraction pipe 21 and the ground and increasing its service life.

[0033] In order to prevent the exhaust pipe 21 from falling and becoming suspended in the air, which may cause safety problems, a pipe collecting rack 9 is provided on the cross beam 1301 in this embodiment. Most of the structures of the pipe collecting rack 9 are the same as those in the prior art, except that the pipe collecting rack 9 includes a rotating shaft 904, a shaft seat 901 for supporting the rotating shaft 904 to rotate, and two limit plates 902 fixedly mounted on the rotating shaft 904. The shaft seat 901 is fixed to the cross beam 1301 by a fixed frame body 905. A power unit for driving the rotating shaft 904 to rotate is provided on the shaft seat 901 or the pipe collecting rack.

[0034] In this embodiment, the power unit includes a motor 907 and a driving roller 906 fixed on a fixed frame 905. The circumferential side of the driving roller 906 is in contact and friction with the circumferential sides of the two limit plates 902. The output shaft of the motor 907 and the driving roller 906 are provided with transmission gears on the same end as the output shaft. The two transmission gears drive the motor through a transmission toothed belt. When the motor 907 is started, it drives the driving roller 906 to rotate synchronously. The driving roller 906 rotates due to the friction with the limit plates 902, thereby controlling the rotation of the rotating shaft 904.

[0035] The tube collecting rack 9 in this embodiment is different from the prior art in that: the rotating shaft 904 is a hollow structure, the shaft seat 901 is a ball-free bearing seat, the air outlet end of the exhaust pipe 21 is connected to one of the ports of the shaft seat 901, and the end of the rotating shaft 904 mounted on the shaft seat 901 is provided with an opening connected to the interior of the shaft seat 901, so that the exhaust pipe 21 is connected to the interior of the rotating shaft 904, and the rotating shaft 904 is located between the two limit plates 902. A connecting pipe 903 that is connected to the interior is provided, and the end of the connecting pipe 903 that is away from the rotating shaft 904 is wrapped around the rotating shaft 904 and connected to the vacuum exhaust port of the lifting bag 1.

[0036] The exhaust pipe 21 is connected to the connecting pipe 903 through the rotating shaft 904, and the exhaust pipe 21 is connected to the lifting bag 1 through the connecting pipe 903, so that negative pressure can be generated in the lifting bag 1 to absorb aluminum liquid. By controlling the rotation of the tube collection rack 9, the suspended connecting pipe 903 can be rolled up, which is convenient for management, avoids the suspended connecting pipe 903 from interfering with the work of the staff, and improves safety protection.

[0037] It is necessary to emphasize here the connection relationship between the rotating shaft 904, the exhaust pipe 21 and the shaft seat 901. The connection between the exhaust pipe 21 and the port of the shaft seat 901 is in a sealed and connected state, and the corresponding end of the rotating shaft 904 rotates inside the shaft seat 901. In order to ensure the sealing of the internal connection between the rotating shaft 904 and the shaft seat 901, the shaft seat 901 is provided with an annular groove 27 connected to its own interior on the end face facing the rotating shaft 904. This annular groove 27 is used for the flange of the connecting flange 25 to enter, and a sealing ring gasket 26 is provided between the flange of the connecting flange 25 and the annular groove 27. The connecting flange 25 and the shaft seat 901 are connected by bolts. In the normal connection state, the flange of the connecting flange 25 squeezes the sealing ring gasket 26 to make it fit with the rotating shaft 904, thereby ensuring the sealing of the connection between the rotating shaft 904 and the shaft seat 901.

[0038] The vacuum device 22 provided in this embodiment includes a vacuum storage filter device, a vacuum device and a motor 4 which are arranged in sequence. The air extracted from the lifting bag 1 can first pass through the gas storage dust removal tank. The gas storage dust removal tank is made into a tank body according to any shape required, such as a rectangle, an ellipse, etc. The equipment on the tank body is composed of a butterfly valve and other valves that can be quickly opened and closed and an air intake valve that reduces the vacuum degree in the lifting bag, a vacuum negative pressure gauge for detecting gas pressure, and a sewage and dust removal port. The tank body is welded with materials such as steel, stainless steel, and alloy steel. The volume is 0.5 to 8 cubic meters, and the wall thickness is 2mm to 20mm. The air filter device and the gas storage tank can be integrated or separately arranged. The diameter of the inlet and outlet is 20 to 200mm. The air filter device can be installed in the gas storage tank or outside the gas storage tank, and the incoming gas passes through the air filter device and enters the next device. In this embodiment, the air filter device and the gas storage dust removal tank are integrated into one, collectively referred to as the vacuum storage filter device.

[0039] The vacuum storage filtration equipment uses a cyclone dust collector 2, which can use a bag dust collector or a sintered plate dust collector. The wall thickness of the cyclone dust collector 2 is between 3 and 15 mm. The gas enters the circular cavity formed by the inner wall of the tank body of the cyclone dust collector 2 and rotates downward, and then passes through the cavity surrounded by the inner wall to enter the lower equipment. The dust falls during the downward and upward rotation of the gas. The inner diameter of the inner wall is between 10 and 800 mm, and the outer diameter is between 20 and 2000 mm. The conical dust collection device at the bottom of the outer wall is equipped with a valve or a sealing door that can be opened regularly to clean the dust.

[0040] The vacuum equipment in this embodiment is a single or multiple equipment with a suction force or vacuum degree of more than -20kPa, such as a vacuum pump, blower 14 or a strong exhaust fan, which can provide a negative pressure of more than -20kPa.

[0041] In this embodiment, the direction of gas entering the fan is different, and its use method is also different. There are two methods of use: one is when the direction of airflow entering is perpendicular to the rotating shaft of the fan, the power of the fan is between 0.5kw and 20kw, the diameter of the fan is between 100 and 1500mm, the diameter of the fan blade is between 10 and 1000mm, and the size of the fan air inlet and outlet is between 10 and 500mm. Among them, the shape of the fan blade is also arbitrary. The second is when the direction of airflow entering is consistent with the direction of the fan rotating shaft, the power of the fan is between 0.5kw and 20kw, the diameter of the fan is between 100 and 1500mm, the width of the fan blade is between 10 and 1000mm, the fan air inlet is trumpet-shaped, the minimum end opening diameter is between 30 and 200mm, and the maximum opening is between 200 and 1500mm. Among them, the shape of the fan blade is also arbitrary. The vacuum pumping equipment adopts a water ring vacuum pump 3, and obtains vacuum by evacuating the container by mechanical, physical, chemical or physicochemical methods.

[0042] In this embodiment, the top of the cyclone dust collector 2 is provided with an air inlet 6 for connecting with the ladle 1 and an air inlet valve for reducing the vacuum degree in the ladle. The top of the cyclone dust collector 2 is provided with a pump air inlet pipe 7 for connecting with the water ring vacuum pump 3. The top of the water ring vacuum pump 3 is provided with a pump exhaust pipe 8 for discharging air into the atmosphere. The water ring vacuum pump 3 is connected to the motor 4 in a transmission manner. The air in the ladle 1 is directly extracted by the water ring vacuum pump 3 to form a negative pressure state. Under the operation of the motor 4, the aluminum liquid is extracted, and the air in the ladle 1 is extracted together with some dust, and enters the cyclone dust collector 2 through the air inlet 6 to clean the air, and the dust in the ladle 1 is separated from the air, and the dust can be cleaned separately. The cleaned air enters the water ring vacuum pump 3 through the pump air inlet pipe 7, and then is released into the atmosphere through the pump exhaust pipe 8.

[0043] In addition, when employees have finished the aluminum extraction operation and the production task on duty and are about to go off work to clean up, they often use compressed air to blow away the dust around the electrolytic cell and on the floor of the workshop, and the dust after blowing falls on the ground under the floor of the workshop. When the dust accumulates more, the employees will clean it up regularly, which not only wastes the air source, but also repeats the work and increases the workload. The front end of the vacuum device 22 can be increased with a pipe and a dust suction head. After the vacuum device 22 is turned on, a strong negative pressure is generated, and the dust suction effect is very good. It can be used as a vacuum cleaner to absorb the dust on the ground and equipment, and then separated and collected by the dust removal device, and then recycled into the electrolytic cell. In this way, the useful components in the dust are fully and reasonably utilized, reducing the workload of employees to blow the dust to the ground below the electrolytic cell and then clean, collect and hoist it out, while reducing the impact of dust garbage on the environment and the waste of materials.

[0044] Example 2

[0045] The present embodiment provides a ladle aluminum suction system with a vacuum negative pressure device, most of its structures are the same as those in Embodiment 1, except that the moving mechanism is a ground walking trolley, the vacuum device 22 and the tube collection rack 9 are both fixed on the ground walking trolley, and the staff can push the ground walking trolley to move, so that the vacuum device 22 can move with the ladle 1.

[0046] Example 3

[0047] like Figure 5 As shown, this embodiment provides a ladle aluminum suction system with a vacuum negative pressure device, and its structure is mostly the same as that of embodiment 1, except that the air filtering device in the vacuum device 22 adopts a cyclone dust collector 2, and a pump air inlet pipe 7 for connecting to the vacuum device is provided on the top of the cyclone dust collector 2. The vacuum device adopts a blower 14 or a powerful exhaust fan, and the high-speed rotating fan blades drive the vacuum extraction. A pump exhaust pipe 8 for discharging air into the atmosphere is provided on the top of the blower 14, and the blower 14 is connected to the motor 4 in a transmission manner. The air in the ladle 1 is directly extracted by the blower 14 to form a negative pressure state. Under the operation of the motor 4, the aluminum liquid is extracted, and the air in the ladle 1 is extracted together with some dust, and enters the cyclone dust collector 2 through the air inlet 6 to clean the air, and the dust in the ladle 1 is separated from the air, and the dust can be cleaned separately. The cleaned air enters the blower 14 through the pump air inlet pipe 7, and then is released into the atmosphere through the pump exhaust pipe 8.

[0048] Example 4

[0049] like Figure 6As shown, this embodiment provides a ladle aluminum suction system with a vacuum negative pressure device, and its structure is mostly the same as that of Example 1, except that the air filtering device in the vacuum device 22 adopts a wet filter 15, and the wet filter 15 includes a tank body, and there is water in the tank body. The air inlet 6 is arranged on the side wall of the bottom of the tank body, and a water supply pipeline with a valve and a pump air inlet pipe 7 for connecting to the air suction device and an air inlet valve for reducing the vacuum degree in the ladle are arranged on the side wall of the top of the tank body. A sewage pipe is arranged at the bottom of the tank body, and a water level display device is arranged on the side wall of the tank body. A horizontally placed main air pipe 1501 connected to the tube cavity of the air inlet 6 is arranged in the tank body. The main air pipes 1501 are arranged in parallel along the height direction of the tank body and the tube cavities are connected through auxiliary air pipes 1502. Bronchial tubes 1503 are arranged in parallel along the length direction on the main air pipe 1501, and the tube cavities of the main air pipe 1501 and the bronchial tube 1503 are connected. The bronchial tube 1503 is opened with multiple openings 1504 evenly distributed. The bronchial tube 1503 is always in the water. When the water does not submerge the bronchial tube 1503, open the valve of the water supply pipe to supply water. The gas enters the main air pipe 1501 of the tank from the air inlet 6, and then the gas enters the multiple bronchial tubes 1503 dispersed in the water. Among them, the diameter of the main air pipe 1501 is between 20 and 120 mm, and the diameter of the bronchial tube 1503 is between 10 and 100 mm. The gas is discharged through the opening 1504 on the bronchial tube 1503, and the diameter of the opening 1504 is not more than 10 mm. During the rising process of the gas in the water, the dust is adsorbed and precipitated to the bottom of the tank. The rising gas finally enters the pump air inlet 7 and flows to the next device.

[0050] The vacuuming equipment uses a blower 14, and a pump exhaust pipe 8 for discharging air into the atmosphere is arranged on the top of the blower 14, and the blower 14 is connected to the motor 4 in a transmission manner. The air in the lifting bag 1 is directly extracted by the blower 14 to form a negative pressure state. Under the operation of the motor 4, extraction begins, and the air in the lifting bag 1 is extracted together with some dust, and enters the wet filter 15 through the air inlet 6 to clean the air, and separates the dust in the lifting bag 1 from the air, and the dust can be cleaned separately. The cleaned air enters the blower 14 through the pump air inlet pipe 7, and then is released into the atmosphere through the pump exhaust pipe 8.

[0051] Example 5

[0052] like Figure 7As shown, this embodiment provides a ladle aluminum suction system with a vacuum negative pressure device, and its structure is mostly the same as that of embodiment 1, except that the air filtering device in the vacuum device 22 adopts a cyclone dust collector 2, and the vacuum device adopts a water ring vacuum pump. A water tank 5 is arranged behind the water ring vacuum pump 3, and the water tank 5 is the source of water for the water ring vacuum pump 3 to provide water circulation. The top of the water ring vacuum pump 3 is symmetrically provided with a pump air inlet pipe 7 and a pump exhaust pipe 8. The pump air inlet pipe 7 is used to connect with the cyclone dust collector 2. The pump exhaust pipe 8 is connected to the top of the water tank 5. The bottom of the two ends or one end of the water ring vacuum pump 3 is provided with a communicating water inlet pipe 23. The bottom of the side wall of the water tank 5 is provided with a water outlet pipe 24. The water inlet pipe 23 on the water ring vacuum pump 3 is connected with the water outlet pipe 24 on the water tank. The top of the water tank 5 is provided with an exhaust port 10. The top of the side wall of the water tank 5 is provided with a water replenishment port 11 with a valve. When the water in the water tank 5 is not enough, water is added through the water replenishment port 11. The side wall at the bottom of the water tank 5 is provided with a sewage outlet 12 for discharging impurities. The water ring vacuum pump is filled with water between the rotating fan blades and the surrounding pump body. When the internal fan rotates, vacuum is extracted. The power of the motor 4 is between 0.5 and 20kw. The number and shape of the blades are based on the needs. The width and diameter of the fan blades are between 20 and 800mm. Water enters the water ring vacuum pump 3 at the bottom of the water ring vacuum pump 3, and the discharged water enters the water tank 5, and then enters the water ring vacuum pump 3 through the water pipe of the water tank 5 for circulation. The diameter of the water pipe is 10 to 100 mm, the shape of the water tank 5 is arbitrary, the volume is 0.5 to 3 cubic meters, and the diameter of the air inlet and outlet is 20 to 150 mm. The water ring vacuum pump avoids air backflow, does not extract air from the surrounding atmosphere, improves negative pressure efficiency, and reduces energy waste.

[0053] Under the operation of the motor 4, extraction begins, and the air in the lifting bag 1 together with some dust is extracted, and enters the cyclone dust collector 2 through the air inlet 6 for cleaning the air, so that the dust in the lifting bag 1 is separated from the air, and the dust can be cleaned separately. The cleaned air enters the water ring vacuum pump 3 through the pump air inlet pipe 7, and then enters the water tank 5 through the pump exhaust pipe 8, and then is released into the atmosphere through the exhaust port 10 on the water tank 5.

[0054] Example 6

[0055] like Figure 8 As shown, this embodiment provides a ladle aluminum suction system with a vacuum negative pressure device, and its structure is mostly the same as that of embodiment 1, except that the vacuum storage filter device in the vacuum device 22 adopts a dry filter 16. The dry filter 16 includes a tank body, an air inlet 6 is arranged on the side wall of the tank body, a pump air inlet pipe 7 for connecting to the vacuum device is arranged on the side wall of the other side of the tank body, and a multi-layer filter screen 1601 is arranged in the tank body in a horizontal or vertical direction with the bottom of the tank body. Among them, the filter screen 1601 can be flat or cylindrical.

[0056] The gas enters the pump air inlet pipe 7 through the filter 1601. The filter 1601 is made of high temperature resistant materials, such as asbestos, rock wool, silicate, carbon fiber, steel and steel alloy fiber, etc. The plate and cylinder with mesh made of it are the filter 1601 of the dry filter 16. The dust enters the dry filter 16 for dust removal. The volume of the dry filter 16 is between 0.1 and 5 cubic meters. The dry filter 16 will not produce secondary pollution, and can effectively remove dust and water mist in the exhaust gas. The dust and water mist will be effectively intercepted by the filter material to ensure the cleanliness of the air.

[0057] The vacuuming equipment adopts a water ring vacuum pump. When the motor 4 is running, the extraction starts, and the air in the bag 1 is extracted together with some dust, and enters the dry filter 15 through the air inlet 6 to clean the air, and the dust in the bag 1 is separated from the air, and the dust can be cleaned separately. The cleaned air enters the water ring vacuum pump 3 through the pump air inlet pipe 7, and then enters the water tank 5 through the pump exhaust pipe 8, and then is released into the atmosphere through the exhaust port 10 on the water tank 5.

[0058] In order to achieve better dust removal effect and make the gas finally discharged into the atmosphere cleaner, the cyclone dust collector 2, wet filter 15, and dry filter 16 in the above embodiments 1 to 5 adopt a combination of multiple vacuum storage filtering devices, and also adopt multiple vacuum storage filtering devices with each type having one combination. Also, multiple vacuum storage filtering devices are used, and each type has multiple vacuum storage filtering devices. The dust removal effect is better with the mutual cooperation of various vacuum storage devices.

[0059] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various modifications or variations within the scope of the claims, which does not affect the essence of the present invention.

Claims

1. A ladle aluminum suction system with a vacuum negative pressure device, comprising a ladle (1), a vacuum device (22) and a crane (13), the crane (13) comprising two guide rails (1303) arranged along the distribution direction of the electrolytic cells, the guide rails (1303) are slidably provided with end beams (1304), the two end beams (1304) are connected by two parallel cross beams (1301), the two cross beams (1301) are provided with a car body (1302) sliding along the length direction thereof, the car body (1302) can be hung by the ladle (1), and the characteristics are: It also includes a moving mechanism for carrying a vacuum device (22) to follow the lifting bag (1), and the vacuum device (22) is connected to the lifting bag (1) through an air extraction pipeline (21); The moving mechanism is a crossbeam (1301), and the vacuum pumping device (22) is arranged at the same end of two crossbeams (1301), or the moving mechanism is a ground walking trolley, and the vacuum pumping device (22) is fixed on the ground walking trolley.

2. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 1, characterized in that: A tube collecting frame (9) is provided on the two cross beams (1301), and the tube collecting frame (9) comprises a rotating shaft (904), a shaft seat (901) for supporting the rotating shaft (904) to rotate, and two limit plates (902) fixedly sleeved on the rotating shaft (904). The shaft seat (901) is fixed on the cross beam (1301) through a fixed frame body (905). The rotating shaft (904) is a hollow structure. The air outlet end of the exhaust pipe (21) is connected to the interior of the rotating shaft (904). A connecting pipe (903) connected to the interior of the rotating shaft (904) is provided at a portion of the rotating shaft (904) between the two limit plates (902). One end of the connecting pipe (903) facing away from the rotating shaft (904) is wound around the rotating shaft (904) and is connected to the vacuum extraction port of the lifting bag (1). A power unit for driving the rotating shaft (904) to rotate is provided on the tube collecting frame (9).

3. The aluminum suction system with vacuum negative pressure device according to claim 1, characterized in that: The ground-moving trolley is provided with a pipe collecting frame (9), which comprises a rotating shaft (904), a shaft seat (901) for supporting the rotating shaft (904) to rotate, and two limit plates (902) fixedly sleeved on the rotating shaft (904); the shaft seat (901) is fixed to the ground-moving trolley through a fixed frame body (905); the rotating shaft (904) is a hollow structure; the air outlet end of the exhaust pipe (21) is connected to the interior of the rotating shaft (904); a connecting pipe (903) connected to the interior of the rotating shaft (904) is provided at a portion of the rotating shaft (904) between the two limit plates (902); one end of the connecting pipe (903) facing away from the rotating shaft (904) is wound around the rotating shaft (904) and is connected to the vacuum extraction port of the lifting bag (1); and a power unit for driving the rotating shaft (904) to rotate is provided on the pipe collecting frame (9).

4. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 1, characterized in that: The vacuum extraction device (22) comprises a vacuum storage filter device, an air extraction device and a motor (4) which are arranged in sequence. The vacuum storage filter device is provided with an air inlet (6) for connecting to the lifting bag (1). The vacuum storage filter device and the air extraction device are connected via an air pipeline, and the air extraction device is connected to the motor (4) in a transmission manner.

5. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 4 is characterized in that: The vacuum storage and filtering equipment is a cyclone dust collector (2) or a bag dust collector.

6. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 4, characterized in that: The vacuum storage filtering device is a wet filter (15), which comprises a tank body, an air inlet (6) arranged on the side wall of the tank body, water in the tank body, a water supply pipe with a valve and a pump air inlet pipe (7) for connecting to an air extraction device are arranged on the top side wall of the tank body, a sewage pipe is arranged at the bottom of the tank body, a water level display device is arranged on the side wall of the tank body, a horizontally placed main air pipe (1501) connected to the tube cavity of the air inlet (6) is arranged in the tank body, the main air pipes (1501) are arranged in parallel along the height direction of the tank body, and the tube cavities are connected through auxiliary air pipes (1502), bronchial tubes (1503) are arranged in parallel along the length direction on the main air pipe (1501), the tube cavities of the main air pipe (1501) and the bronchial tubes (1503) are connected, the bronchial tubes (1503) are always in water, and a plurality of evenly distributed openings are opened on the bronchial tubes (1503).

7. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 4, characterized in that: The vacuum storage filtering device is a dry filter (16), which includes a tank body, an air inlet (6) arranged on the side wall of the tank body, a pump air inlet pipe (7) for connecting to a vacuum extraction device is arranged on the other side wall of the tank body, and a multi-layer filter screen (1601) is arranged in the tank body in a horizontal or vertical direction with the bottom of the tank body.

8. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 7, characterized in that: The filter screen (1601) is in the shape of a flat plate or a cylinder.

9. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 4, characterized in that: The air extraction device is a vacuum pump, a blower (14) or a powerful exhaust fan.

10. The aluminum-absorbing system for a ladle with a vacuum negative pressure device according to claim 4, characterized in that: The air extraction device is a water ring vacuum pump (3), a pump exhaust pipe (8) is arranged at the top of the water ring vacuum pump (3), the water ring vacuum pump (3) is connected to a water tank (5) via the pump exhaust pipe (8), and the bottoms of the water ring vacuum pump (3) and the water tank (5) are connected via a water pipe, an exhaust port (10) is arranged at the top of the water tank (5), a water supply port (11) with a valve is arranged at the top of the side wall of the water tank (5), and a sewage outlet (12) is arranged at the bottom of the water tank (5).

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