Electrolytic aluminum liquid impurity removal device

Abstract

The utility model belongs to the technical field of electrolytic aluminum liquid impurity removal, and particularly relates to an electrolytic aluminum liquid impurity removal device which comprises an electrolytic aluminum liquid treatment tank, a stirring and smashing assembly is mounted in the electrolytic aluminum liquid treatment tank, a ventilation treatment assembly is mounted at the bottom of the electrolytic aluminum liquid treatment tank, and an impurity filtering assembly is arranged on the side of the electrolytic aluminum liquid treatment tank. A temperature control assembly is arranged outside the electrolytic aluminum liquid treatment tank, the stirring and smashing assembly comprises a servo motor, a transmission belt mechanism is installed at the end of the output end of the servo motor, a stirring main shaft is fixedly connected to the other end of the transmission belt mechanism, and a stirring auxiliary shaft is fixedly connected to the outer wall of the stirring main shaft; the outer wall of the auxiliary stirring shaft is fixedly connected with stirring and smashing fan blades; according to the utility model, the inert gas is introduced into the electrolytic aluminum liquid and bubbles of the electrolytic aluminum liquid are broken, so that some tiny impurities in the electrolytic aluminum liquid can be conveniently brought out by utilizing the inert gas, and the impurities in the electrolytic aluminum liquid can be more thoroughly removed.

Description

Technical Field

[0001] The utility model relates to the technical field of impurity removal from electrolytic aluminum liquid, and specifically relates to an impurity removal device for electrolytic aluminum liquid. Background Technique

[0002] During the aluminum smelting process, electrolytic aluminum liquid usually contains some impurities, which will affect the quality and performance of aluminum. Therefore, impurity removal is a very important link in the aluminum smelting process.

[0003] In Chinese Patent No. 202020066889.4, the utility model discloses an impurity removal device for electrolytic aluminum liquid, including: a main body assembly, the main body assembly includes a support plate, a bottom plate, an anti-slip pad and a housing; an impurity removal assembly, the impurity removal assembly includes a discharge pipe, an annular plate, a filter screen, a first valve, an air outlet pipe, a chute, a second valve, a carbon dioxide filter plate, a hydrogen fluoride filter plate, an activated carbon filter plate and a first slider, and the air outlet pipe is communicated with the upper surface of the housing. By the cooperative use of components such as an electrolysis tank, a motor, a stirring shaft and a first stirring blade, the electrolytic aluminum liquid is separated from impurities and filtered through the filter screen. During the impurity removal process of the electrolytic aluminum liquid, the harmful air generated is filtered and purified through components such as a carbon dioxide filter plate, a hydrogen fluoride filter plate and an activated carbon filter plate, the electrolytic aluminum liquid gas is decontaminated, air pollution is prevented, and air resources are protected. This device is simple to use, easy to operate, and improves the work efficiency of staff.

[0004] The existing impurity removal of electrolytic aluminum liquid mainly filters out the impurities therein by filtration. There will be some impurities with extremely small volumes in the electrolytic aluminum solution, which are not easily cleaned out during the filtration process and still remain in the electrolytic aluminum solution. These impurities will affect the quality and performance of subsequent aluminum.

[0005] Therefore, an impurity removal device for electrolytic aluminum liquid is proposed for the above problems. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art, the problem that the existing impurity removal of electrolytic aluminum liquid mainly filters out the impurities therein by filtration is solved. There will be some impurities with extremely small volumes in the electrolytic aluminum solution, which are not easily cleaned out during the filtration process and still remain in the electrolytic aluminum solution. These impurities will affect the quality and performance of subsequent aluminum.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: An impurity removal device for electrolytic aluminum liquid according to the present utility model includes a stirring and crushing assembly installed inside an electrolytic aluminum liquid treatment tank, and an air ventilation treatment assembly installed at the bottom of the electrolytic aluminum liquid treatment tank. An impurity filtering assembly is provided on the side of the electrolytic aluminum liquid treatment tank, and a temperature control assembly is provided outside the electrolytic aluminum liquid treatment tank. The stirring and crushing assembly includes a servo motor. The output end of the servo motor is equipped with a transmission belt mechanism, and the other end of the transmission belt mechanism is fixedly connected to a stirring main shaft. The outer wall of the stirring main shaft is fixedly connected to a stirring auxiliary shaft, and the outer wall of the stirring auxiliary shaft is fixedly connected to stirring and crushing fan blades. And a feed pipe orifice is provided at the top of the stirring and crushing fan blades.

[0008] Preferably, the stirring and crushing fan blades are arranged at equal angles on the outer wall of the stirring auxiliary shaft, and the stirring auxiliary shaft is arranged at equal angles on the outer wall of the stirring main shaft. The servo motor and the stirring main shaft form a transmission structure through the transmission belt mechanism.

[0009] Preferably, the air ventilation treatment assembly includes an inert gas storage tank. A suction pump is connected to the side of the inert gas storage tank, and a first ventilation pipe is connected to the other side of the suction pump. The end of the first ventilation pipe is connected to a second ventilation pipe, and an air inlet is connected to the top of the second ventilation pipe.

[0010] Preferably, the air inlets are arranged at equal angles on the top of the second ventilation pipe, and the shape of the second ventilation pipe is set as an annular shape. The inert gas storage tank and the second ventilation pipe form a communication structure through the first ventilation pipe, and the second ventilation pipe and the inner cavity of the electrolytic aluminum liquid treatment tank form a communication structure through the air inlet.

[0011] Preferably, the impurity filtering assembly includes an impurity storage box. A first drain pipe is threadedly connected to one side of the impurity storage box, and a first sealing washer is fixedly connected to the end of the first drain pipe. A connection pipe orifice is connected to the other side of the impurity storage box, and a second sealing washer is fixedly connected to the end of the connection pipe orifice. A second drain pipe is threadedly connected to the outside of the connection pipe orifice, and a filter screen is fixedly connected to the end of the second drain pipe.

[0012] Preferably, the first drain pipe and the second drain pipe form a communication structure through the impurity storage box, and the longitudinal sectional shape of the impurity storage box is set as a right trapezoid shape.

[0013] Preferably, the temperature control assembly includes a heat insulation outer shell. A heating rod is installed on the inner wall of the heat insulation outer shell, and a temperature controller is installed on the outer wall of the heat insulation outer shell. The heating rod is arranged in a spiral shape on the outer wall of the electrolytic aluminum liquid treatment tank.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The utility model is provided with a stirring and crushing assembly. Multiple stirring auxiliary shafts cooperate with stirring and crushing fan blades and rotate at high speed inside the electrolytic aluminum liquid treatment tank, facilitating the crushing of the inert gas bubbles filled from the bottom inside it, and simultaneously stirring the electrolytic aluminum solution, enabling the impurities inside it to be fully combined with the inert gas bubbles, and enabling some tiny impurities inside it to also be carried out by the inert gas bubbles, thereby facilitating the improvement of the impurity removal efficiency and making the impurities inside the electrolytic aluminum liquid be cleaned more thoroughly.

[0016] 2. The utility model is provided with a ventilation treatment assembly. The air inlets are arranged in an annular array to fill inert gas from the bottom of the solution, facilitating the increase of the contact area and time between the inert gas and the electrolytic aluminum liquid, and thereby facilitating the better removal of the impurities inside it.

[0017] 3. The utility model is provided with an impurity filtering assembly. The impurity storage box has a longitudinal section in the shape of a right trapezoid, and the side facing the first drain pipe is vertical, facilitating its greater depth and preventing the impurities that have entered the impurity storage box from flowing back towards the first drain pipe. The impurity storage box is threadedly connected to the first drain pipe, the connecting pipe orifice and the second drain pipe, facilitating the disassembly and cleaning of the impurity storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the overall front view of the present utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the ventilation treatment assembly part of the present utility model;

[0021] Figure 3 It is an exploded structural schematic diagram of the impurity filtering assembly part of the present utility model;

[0022] Figure 4 It is an exploded structural schematic diagram of the stirring and crushing assembly part of the present utility model;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the temperature control assembly part of the present utility model.

[0024] In the figure: 1. Electrolytic aluminum liquid treatment tank; 2. Stirring and crushing assembly; 3. Ventilation treatment assembly; 4. Impurity filtration assembly; 5. Temperature control assembly; 201. Servo motor; 202. Transmission belt mechanism; 203. Stirring main shaft; 204. Stirring auxiliary shaft; 205. Stirring and crushing fan blades; 206. Feed pipe orifice; 301. Inert gas storage tank; 302. Air extraction pump; 303. First ventilation pipe; 304. Second ventilation pipe; 305. Air inlet; 401. Impurity storage box; 402. First drain pipe; 403. First sealing gasket; 404. Connection pipe orifice; 405. Second sealing gasket; 406. Filter screen; 407. Second drain pipe; 501. Heat insulation outer shell; 502. Heating rod; 503. Temperature controller. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] As Figure 1 shown, a device for removing impurities from electrolytic aluminum liquid includes a stirring and crushing assembly 2 installed inside an electrolytic aluminum liquid treatment tank 1, and a ventilation treatment assembly 3 installed at the bottom of the electrolytic aluminum liquid treatment tank 1. An impurity filtration assembly 4 is provided on the side of the electrolytic aluminum liquid treatment tank 1, and a temperature control assembly 5 is provided outside the electrolytic aluminum liquid treatment tank 1.

[0028] As Figure 4 shown, a device for removing impurities from electrolytic aluminum liquid. The stirring and crushing assembly 2 is used to make the inert gas fully contact with the electrolytic aluminum liquid. The stirring and crushing fan blades 205 are arranged at equal angles on the outer wall of the stirring auxiliary shaft 204, and the stirring auxiliary shaft 204 is arranged at equal angles on the outer wall of the stirring main shaft 203. The servo motor 201 and the stirring main shaft 203 form a transmission structure through the transmission belt mechanism 202. Multiple stirring auxiliary shafts 204 and the stirring and crushing fan blades 205 cooperate with each other and rotate at high speed inside the electrolytic aluminum liquid treatment tank 1, so as to be able to break the inert gas bubbles filled from the bottom inside it, and at the same time stir the electrolytic aluminum solution, so that the impurities inside it are fully combined with the inert gas bubbles, and some minute impurities inside it can also be carried out by the bubbles of the inert gas, thereby facilitating the improvement of the impurity removal efficiency and making the impurities inside the electrolytic aluminum liquid cleaner.

[0029] As Figure 2As shown in the figure, a device for removing impurities from electrolytic aluminum liquid. The ventilation treatment component 3 is used to introduce inert gas into the electrolytic aluminum liquid. The air inlet 305 is arranged at equal angles with respect to the top of the second ventilation pipe 304, and the shape of the second ventilation pipe 304 is set as an annular shape. The inert gas storage tank 301 is connected to the second ventilation pipe 304 through the first ventilation pipe 303 to form a communication structure, and the second ventilation pipe 304 is connected to the inner cavity of the electrolytic aluminum liquid treatment tank 1 through the air inlet 305. The air inlets 305 are arranged in an annular array to introduce inert gas from the bottom of the solution, which is convenient for increasing the contact area and time between the inert gas and the electrolytic aluminum liquid, and thus facilitating better removal of impurities inside it.

[0030] As Figure 3 shown in the figure, a device for removing impurities from electrolytic aluminum liquid. The impurity filtration component 4 includes an impurity storage box 401. One side of the impurity storage box 401 is threadedly connected with a first drain pipe 402, and a first sealing washer 403 is fixedly connected to the end of the first drain pipe 402. The other side of the impurity storage box 401 is communicated with a connection pipe orifice 404, and a second sealing washer 405 is fixedly connected to the end of the connection pipe orifice 404. The outside of the connection pipe orifice 404 is threadedly connected with a second drain pipe 407, and a filter screen 406 is fixedly connected to the end of the second drain pipe 407. The first drain pipe 402 forms a communication structure with the second drain pipe 407 through the impurity storage box 401, and the longitudinal sectional shape of the impurity storage box 401 is set as a right trapezoid shape. The impurity storage box 401 with a longitudinal section of a right trapezoid is vertically arranged on the side facing the first drain pipe 402, which is convenient for its larger depth and for preventing the impurities that have entered the impurity storage box 401 from flowing back in the direction of the first drain pipe 402. The impurity storage box 401 is threadedly connected to the first drain pipe 402 and the connection pipe orifice 404 is threadedly connected to the second drain pipe 407, which is convenient for the impurity storage box 401 to be disassembled and cleaned.

[0031] As Figure 5 shown in the figure, a device for removing impurities from electrolytic aluminum liquid. The temperature control component 5 includes a heat insulation outer shell 501. A heating rod 502 is installed on the inner wall of the heat insulation outer shell 501, and a temperature controller 503 is installed on the outer wall of the heat insulation outer shell 501. The heating rod 502 is arranged in a spiral shape with respect to the outer wall of the electrolytic aluminum liquid treatment tank 1.

[0032] Working principle: First, add the electrolytic aluminum solution to be purified into the interior of the electrolytic aluminum liquid treatment tank 1 through the feed pipe orifice 206. Then, open the valve on the inert gas storage tank 301 and the air extraction pump 302. Nitrogen gas inside the inert gas storage tank 301 enters the interior of the electrolytic aluminum liquid treatment tank 1 from the air inlet 305 through the first ventilation pipe 303 and the second ventilation pipe 304. At the same time, start the servo motor 201. The output end of the servo motor 201 drives the stirring main shaft 203 to rotate through the transmission belt mechanism 202. At the same time, the stirring main shaft 203 drives the stirring auxiliary shaft 204 and the stirring and breaking fan blades 205 to rotate at high speed inside the electrolytic aluminum liquid treatment tank 1, stirring the electrolytic aluminum solution inside it, and at the same time breaking the inert gas bubbles discharged from the bottom. The large inert gas bubbles are broken into very fine small bubbles and evenly dispersed in the electrolytic aluminum solution. By reducing the bubble diameter, the total surface area of the bubbles increases sharply, enabling more inert bubble surfaces to contact the hydrogen and impurities in the electrolytic aluminum solution, thereby bringing these harmful substances to the liquid surface;

[0033] After the inflation and dispersion are completed, turn off the servo motor 201 and the air extraction pump 302. The end of the first ventilation pipe 303 is equipped with a check valve to prevent liquid from entering. Then, open the valve on the first drain pipe 402. The mixture of electrolytic aluminum solution and impurities flows through the first drain pipe 402 to the impurity storage box 401 and is finally transported to a designated location through the second drain pipe 407. The filter screen 406 can filter the electrolytic aluminum solution, filtering and isolating the impurities inside the impurity storage box 401. After the filtration is completed, the first drain pipe 402 and the second drain pipe 407 can be rotated and unscrewed, and then the impurity storage box 401 can be removed for cleaning.

[0034] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An impurity removal device for electrolytic aluminum liquid, characterized in that: Inside the electrolytic aluminum liquid treatment tank (1), a stirring and crushing assembly (2) is installed, and an air ventilation treatment assembly (3) is installed at the bottom of the electrolytic aluminum liquid treatment tank (1). An impurity filtering assembly (4) is arranged on the side of the electrolytic aluminum liquid treatment tank (1), and a temperature control assembly (5) is arranged outside the electrolytic aluminum liquid treatment tank (1). The stirring and crushing assembly (2) includes a servo motor (201). At the end of the output shaft of the servo motor (201), a transmission belt mechanism (202) is installed. The other end of the transmission belt mechanism (202) is fixedly connected to a stirring main shaft (203). On the outer wall of the stirring main shaft (203), a stirring auxiliary shaft (204) is fixedly connected. On the outer wall of the stirring auxiliary shaft (204), stirring and crushing fan blades (205) are fixedly connected. And at the top of the stirring and crushing fan blades (205), a feed pipe opening (206) is arranged.

2. The impurity removal device for electrolytic aluminum liquid according to claim 1, wherein: The stirring and crushing fan blades (205) are arranged at equal angles on the outer wall of the stirring auxiliary shaft (204), and the stirring auxiliary shaft (204) is arranged at equal angles on the outer wall of the stirring main shaft (203). The servo motor (201) and the stirring main shaft (203) form a transmission structure through the transmission belt mechanism (202).

3. The impurity removal device for electrolytic aluminum liquid according to claim 1, characterized in that: The air ventilation treatment assembly (3) includes an inert gas storage tank (301). On the side of the inert gas storage tank (301), an air extraction pump (302) is connected. On the other side of the air extraction pump (302), a first ventilation pipe (303) is connected. At the end of the first ventilation pipe (303), a second ventilation pipe (304) is connected. And at the top of the second ventilation pipe (304), an air inlet (305) is connected.

4. The impurity removal device for electrolytic aluminum liquid according to claim 3, wherein: The air inlets (305) are arranged at equal angles on the top of the second ventilation pipe (304), and the shape of the second ventilation pipe (304) is set to be circular. The inert gas storage tank (301) and the second ventilation pipe (304) form a communication structure through the first ventilation pipe (303), and the second ventilation pipe (304) and the inner cavity of the electrolytic aluminum liquid treatment tank (1) form a communication structure through the air inlet (305).

5. The impurity removal device for electrolytic aluminum liquid according to claim 1, characterized in that: The impurity filtering assembly (4) includes an impurity storage box (401). On one side of the impurity storage box (401), a first drain pipe (402) is connected by thread. At the end of the first drain pipe (402), a first sealing washer (403) is fixedly connected. On the other side of the impurity storage box (401), a connecting pipe opening (404) is connected. At the end of the connecting pipe opening (404), a second sealing washer (405) is fixedly connected. Outside the connecting pipe opening (404), a second drain pipe (407) is connected by thread. At the end of the second drain pipe (407), a filter screen (406) is fixedly connected.

6. The impurity removal device for electrolytic aluminum liquid according to claim 5, characterized in that: The first drain pipe (402) and the second drain pipe (407) form a communication structure through the impurity storage box (401), and the longitudinal sectional shape of the impurity storage box (401) is set to be a right trapezoid shape.

7. An impurity removal device for electrolytic aluminum liquid according to claim 1, characterized in that: The temperature control component (5) includes a heat-insulating housing (501), a heating rod (502) is installed on the inner wall of the heat-insulating housing (501), and a thermostat (503) is installed on the outer wall of the heat-insulating housing (501). The heating rod (502) is arranged in a spiral shape with respect to the outer wall of the electrolytic aluminum liquid treatment tank (1).

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