Gas circulation device for aluminum powder atomization production

Abstract

The utility model relates to the technical field of aluminum powder production, in particular to a gas circulation device for aluminum powder atomization production, which comprises a support frame, a tank body, an aluminum powder box and a gas storage tank are respectively arranged on the support frame, a fixing ring is arranged in the tank body, a cloth filter screen is arranged on the fixing ring, a cleaning structure is further arranged in the tank body, and the cleaning structure is arranged on the support frame. The cleaning structure comprises cloth strips rotationally connected with the cloth filter screen, the tail ends of the cloth strips are provided with cleaning brushes corresponding to the inner wall of the tank body, the supporting frame is further provided with an atomization structure connected with the aluminum powder box, the atomization structure comprises an atomization nozzle communicated with the interior of the tank body, and the gas storage tank is provided with a gas circulation structure. The gas circulation structure comprises a gas extraction assembly connected with the gas storage tank, the gas extraction assembly is connected with the atomizing nozzle, the gas storage tank is communicated with the tank body, and the problems that in the prior art, nitrogen for aluminum powder production cannot be recycled in atomization, and a filter screen is troublesome to replace and clean are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum powder production, in particular to a gas circulation device for aluminum powder atomization production. Background Art

[0002] The main production processes of aluminum powder include: double-flow atomization, centrifugal atomization, vacuum atomization, ultrasonic atomization, multi-stage atomization, rapid cooling and ball milling, etc. At present, nitrogen atomization is mostly used in the production of aluminum powder. This method of producing aluminum powder requires a large amount of nitrogen, which causes waste of nitrogen. Fine aluminum powder is widely used in military industry, aerospace, chemical industry, metallurgy, building materials and other fields. The market demand is large and the market prospects are very broad. Therefore, more and more engineering and technical personnel are paying attention to the production of fine aluminum powder. Due to the high cost of nitrogen, if nitrogen cannot be recycled, it will cause waste of nitrogen and increase normal costs.

[0003] After the atomized aluminum powder adheres to the filter, the filter also needs to be cleaned or replaced regularly, which is time-consuming and laborious. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a gas circulation device for aluminum powder atomization production, which effectively solves the problems in the prior art that nitrogen atomization for aluminum powder production cannot be recycled and that the filter screen is troublesome to replace and clean.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is:

[0006] A gas circulation device for aluminum powder atomization production, comprising a support frame, on which a tank body, an aluminum powder box and a gas storage tank are respectively arranged, a fixing ring is arranged in the tank body, a cloth filter is arranged on the fixing ring, a cleaning structure is also arranged in the tank body, the cleaning structure comprises a cloth strip rotatably connected to the cloth filter, a cleaning brush corresponding to the inner wall of the tank body is arranged at the end of the cloth strip, an atomization structure connected to the aluminum powder box is also arranged on the support frame, the atomization structure comprises an atomization nozzle connected to the tank body, a gas circulation structure is arranged on the gas storage tank, the gas circulation structure comprises an exhaust assembly connected to the gas storage tank, the exhaust assembly is connected to the atomization nozzle, and the gas storage tank is connected to the tank body.

[0007] The cleaning structure also includes a motor connected to the tank body, an output end of the motor is fixedly connected to a driving bevel gear, the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is fixedly connected to a rotating rod, a rotating column rotatably connected to the cloth filter is provided at the bottom of the rotating rod, and both ends of the rotating column are respectively fixedly connected to the cloth strip.

[0008] The upper end of the rotating rod is fixedly connected to an inner groove column, the inner wall of the inner groove column is slidably connected to a rotating disk, the lower end of the rotating disk is fixedly connected to a sliding block, the inner wall of one end of the sliding block is fixedly connected to a screw barrel, the screw barrel is threadedly connected to a screw, the upper end of the tank body is fixedly connected to a support plate, and the support plate is provided with a limiting rod slidably connected to the sliding block.

[0009] The atomization structure also includes an air pump connected to the aluminum powder box, and the air pump pipeline is connected to the atomization nozzle.

[0010] The gas storage tank is provided with a pipe body which is connected with the tank body, and the pipe body is located at the upper end of the cloth filter.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The air pump draws the aluminum powder in the aluminum powder box into the atomizing nozzle, and the vacuum pump draws the nitrogen in the gas tank into the atomizing nozzle. After mixing with the aluminum powder, it is sprayed into the tank body through the atomizing nozzle. The nitrogen in the tank body enters the gas tank again to realize the recycling of nitrogen. Together with the nitrogen entering the atomizing nozzle, it is sprayed into the tank body through the atomizing nozzle, which can effectively prevent the aluminum powder from being oxidized.

[0013] 2. The rotation of the rotating column drives the cloth strip to rotate in a circle. When the cloth strip is attached to the surface of the cloth filter, the large aluminum powder particles on the cloth filter can be cleaned during the circular rotation of the cloth strip. The large aluminum powder particles fall due to gravity to avoid clogging of the cloth filter.

[0014] 3. During the circular rotation of the cloth strip, the cleaning brush at the end is driven to rotate in a circle due to the centrifugal force. The inner wall of the tank is cleaned by the cleaning brush, and the positions at different depths can be cleaned by controlling the downward movement distance of the rotating column to prevent aluminum powder from adhering to the inner wall of the tank, affecting the amount of aluminum powder and the service life of the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the cleaning structure of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the cloth filter of the utility model;

[0019] Numbers in the figure: 1-tank body, 2-support frame, 3-aluminum powder box, 4-air pump, 5-gas storage tank, 6-vacuum pump, 7-atomizing nozzle, 8-motor, 9-cloth filter, 10-rotating rod, 11-inner groove column, 12-turntable, 13-screw, 14-screw barrel, 15-slider, 16-limiting rod, 17-support plate, 18-driven bevel gear, 19-driving bevel gear, 20-cloth strip, 21-cleaning brush, 22-fixing ring, 23-rotating column. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0021] like Figure 1-4 As shown, a gas circulation device for aluminum powder atomization production comprises a support frame 2, on which a tank body 1, an aluminum powder box 3 and a gas storage tank 5 are respectively arranged, a fixing ring 22 is arranged in the tank body 1, a cloth filter 9 is arranged on the fixing ring 22, a cleaning structure is also arranged in the tank body 1, the cleaning structure comprises a cloth strip 20 rotatably connected to the cloth filter 9, a cleaning brush 21 corresponding to the inner wall of the tank body 1 is arranged at the end of the cloth strip 20, an atomization structure connected to the aluminum powder box 3 is also arranged on the support frame 2, the atomization structure comprises an atomization nozzle 7 connected to the tank body 1, a gas circulation structure is arranged on the gas storage tank 5, the gas circulation structure comprises an exhaust assembly connected to the gas storage tank 5, the exhaust assembly is connected to the atomization nozzle 7, and the gas storage tank 5 is connected to the tank body 1.

[0022] When the utility model is in use, the atomizing structure is controlled to work, the aluminum powder in the aluminum powder box 3 is pumped into the atomizing nozzle 7, the gas circulation structure is in operation, the air extraction component is the air extraction pump 6, the air extraction pump 6 is used to extract the nitrogen in the gas storage tank 5 into the atomizing nozzle 7, and after mixing with the aluminum powder, the nitrogen is sprayed into the tank body 1 through the atomizing nozzle 7, the nitrogen in the tank body 1 is filtered by the cloth filter 9 and then enters the gas storage tank 5 again, so that the nitrogen is recycled, the fixing ring 22 supports the cloth filter 9, and when the cloth filter 9 absorbs a large amount of large-particle aluminum powder, the cleaning structure can be controlled. The cloth strip 20 rotates in a circle, and during the rotation of the cloth strip 20, large particles of aluminum powder adsorbed on the cloth filter 9 are cleaned off to avoid clogging the cloth filter 9 and affecting the filtering capacity of the cloth filter 9. When a lot of aluminum powder adheres to the inner wall of the tank body 1, the cloth strip 20 can be moved down. After the cleaning brush 21 at the end of the cloth strip 20 moves down, as the cloth strip 20 rotates in a circle, due to the centrifugal force, the cleaning brush 21 can clean the aluminum powder adhered to the inner wall of the tank body 1, to avoid the aluminum powder adhering to the inner wall of the tank body 1, affecting the amount of aluminum powder and the service life of the tank body 1.

[0023] The cleaning structure also includes a motor 8 connected to the tank body 1, an output end of the motor 8 is fixedly connected to a driving bevel gear 19, the driving bevel gear 19 is meshed with a driven bevel gear 18, the driven bevel gear 18 is fixedly connected to a rotating rod 10, a rotating column 23 rotatably connected to the cloth filter 9 is provided at the bottom of the rotating rod 10, and both ends of the rotating column 23 are respectively fixedly connected to the cloth strip 20.

[0024] like Figure 2 and 3 As shown in 4, the motor 8 is working, and the output end of the motor 8 drives the active bevel gear 19 to rotate, the active bevel gear 19 drives the driven bevel gear 18 to rotate, the driven bevel gear 18 drives the rotating rod 10 to rotate, the rotating rod 10 drives the rotating column 23 to rotate, and the rotating column 23 drives the cloth strip 20 to rotate in a circle during the rotation. When the cloth strip 20 is not attached to the surface of the cloth filter 9, the large particles of aluminum powder on the cloth filter 9 can be cleaned during the circular rotation of the cloth strip 20. The large particles of aluminum powder fall due to gravity to avoid the cloth filter 9 being blocked.

[0025] The upper end of the rotating rod 10 is fixedly connected to an inner groove column 11, and the inner wall of the inner groove column 11 is slidably connected to a rotating disk 12. The lower end of the rotating disk 12 is fixedly connected to a slider 15. The inner wall of one end of the slider 15 is fixedly connected to a screw barrel 14, and the screw barrel 14 is threadedly connected to a screw rod 13. The upper end of the tank body 1 is fixedly connected to a support plate 17, and the support plate 17 is provided with a limiting rod 16 slidably connected to the slider 15.

[0026] like Figure 3 As shown, a handle rotatably connected to the support plate 17 is provided at the lower end of the screw 13, and the screw 13 is driven to rotate by the handle. During the rotation of the screw 13, the screw 13 cooperates with the screw barrel 14 threadedly to control the lifting and lowering of the slider 15. The limit rod 16 limits the movement of the slider 15. During the downward movement of the slider 15, the turntable 12 is driven downward, the turntable 12 drives the inner groove column 11 downward, the inner groove column 11 drives the turn rod 10 downward, and the turn rod 10 drives the cloth strips 20 at both ends of the rotating column 23 downward. During the circular rotation of the cloth strip 20, the cleaning brush 21 at the end is driven to rotate in a circle due to the centrifugal force. The cleaning brush 21 is used to clean the inner wall of the tank body 1, and the positions at different depths can be cleaned by controlling the downward movement distance of the rotating column 23 to avoid aluminum powder adhering to the inner wall of the tank body 1, which affects the amount of aluminum powder and the service life of the tank body 1.

[0027] The atomization structure further comprises an air pump 4 connected to the aluminum powder box 3 , and a pipeline of the air pump 4 is connected to the atomization nozzle 7 .

[0028] like Figure 1 and 2As shown, the air pump 4 draws the aluminum powder in the aluminum powder box 3 into the atomizing nozzle 7, and together with the nitrogen entering the atomizing nozzle 7, the aluminum powder is sprayed into the tank body 1 from the atomizing nozzle 7, which can effectively prevent the aluminum powder from being oxidized.

[0029] The gas storage tank 5 is provided with a pipe body which is in communication with the tank body 1 , and the pipe body is located at the upper end of the cloth filter 9 .

[0030] like Figure 2 As shown, the aluminum powder entering the tank body 1 is removed by using a cloth filter 9 .

[0031] The working process of the utility model is as follows: when the utility model is in use, the air pump 4 draws the aluminum powder in the aluminum powder box 3 into the atomizing nozzle 7, the air pump 6 draws the nitrogen in the gas storage tank 5 into the atomizing nozzle 7, and after mixing with the aluminum powder, the nitrogen is sprayed into the tank body 1 by the atomizing nozzle 7, and the nitrogen in the tank body 1 enters the gas storage tank 5 again to realize the recycling of nitrogen, and cooperates with the nitrogen entering the atomizing nozzle 7 to be sprayed into the tank body 1 by the atomizing nozzle 7, which can effectively prevent the aluminum powder from being oxidized.

[0032] The fixing ring 22 supports the cloth filter 9. When the cloth filter 9 absorbs a large amount of large-particle aluminum powder, the motor 8 can work. The output end of the motor 8 drives the active bevel gear 19 to rotate, and the active bevel gear 19 drives the driven bevel gear 18 to rotate. The driven bevel gear 18 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the rotating column 23 to rotate. During the rotation of the rotating column 23, the cloth strip 20 is driven to rotate in a circle. When the cloth strip 20 is attached to the surface of the cloth filter 9, the large-particle aluminum powder on the cloth filter 9 can be cleaned during the circular rotation of the cloth strip 20. The large-particle aluminum powder falls due to gravity, thereby preventing the cloth filter 9 from being blocked.

[0033] When a lot of aluminum powder adheres to the inner wall of the tank body 1, the screw rod 13 is driven to rotate by the rotating handle. During the rotation of the screw 13, the screw rod 13 cooperates with the screw barrel 14 thread to control the lifting and lowering of the slider 15. The limit rod 16 limits the movement of the slider 15. During the downward movement of the slider 15, the turntable 12 is driven downward, the turntable 12 drives the inner groove column 11 downward, the inner groove column 11 drives the rotating rod 10 downward, and the rotating rod 10 drives the cloth strips 20 at both ends of the rotating column 23 downward. During the circular rotation of the cloth strip 20, the cleaning brush 21 at the end is driven to rotate in a circle due to the centrifugal force. The cleaning brush 21 is used to clean the inner wall of the tank body 1, and the positions at different depths can be cleaned by controlling the downward movement distance of the rotating column 23 to prevent the aluminum powder from adhering to the inner wall of the tank body 1, which affects the amount of aluminum powder and the service life of the tank body 1.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A gas circulation device for aluminum powder atomization production, comprising a support frame (2), characterized in that: The support frame (2) is provided with a tank body (1), an aluminum powder box (3) and a gas storage tank (5) respectively. A fixing ring (22) is provided in the tank body (1). A cloth filter (9) is provided on the fixing ring (22). A cleaning structure is also provided in the tank body (1). The cleaning structure comprises a cloth strip (20) rotatably connected to the cloth filter (9). A cleaning brush (21) corresponding to the inner wall of the tank body (1) is provided at the end of the cloth strip (20). An atomizing structure connected to the aluminum powder box (3) is also provided on the support frame (2). The atomizing structure comprises an atomizing nozzle (7) connected to the tank body (1). A gas circulation structure is provided on the gas storage tank (5). The gas circulation structure comprises an exhaust assembly connected to the gas storage tank (5). The exhaust assembly is connected to the atomizing nozzle (7). The gas storage tank (5) is connected to the tank body (1).

2. The gas circulation device for aluminum powder atomization production according to claim 1, characterized in that: The cleaning structure further comprises a motor (8) connected to the tank body (1); an output end of the motor (8) is fixedly connected to a driving bevel gear (19); the driving bevel gear (19) is meshed with a driven bevel gear (18); the driven bevel gear (18) is fixedly connected to a rotating rod (10); a rotating column (23) rotatably connected to the cloth filter (9) is provided at the bottom of the rotating rod (10); and both ends of the rotating column (23) are respectively fixedly connected to the cloth strip (20).

3. The gas circulation device for aluminum powder atomization production according to claim 2, characterized in that: The upper end of the rotating rod (10) is fixedly connected to an inner groove column (11), the inner wall of the inner groove column (11) is slidably connected to a rotating disk (12), the lower end of the rotating disk (12) is fixedly connected to a sliding block (15), the inner wall of one end of the sliding block (15) is fixedly connected to a screw barrel (14), the screw barrel (14) is threadedly connected to a screw rod (13), the upper end of the tank body (1) is fixedly connected to a support plate (17), and a limit rod (16) slidably connected to the sliding block (15) is provided on the support plate (17).

4. The gas circulation device for aluminum powder atomization production according to claim 1, characterized in that: The atomization structure further comprises an air pump (4) connected to the aluminum powder box (3), and a pipeline of the air pump (4) is connected to the atomization nozzle (7).

5. The gas circulation device for aluminum powder atomization production according to claim 1, characterized in that: The gas storage tank (5) is provided with a pipe body which is in communication with the tank body (1), and the pipe body is located at the upper end of the cloth filter (9).

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