Composite powder spraying and purifying device for aluminum alloy melt

Abstract

The utility model discloses an aluminum alloy melt composite powder spraying purification device, which relates to the technical field of aluminum alloy melt purification and comprises a smelting furnace main body, two supporting plates are fixedly arranged on the outer side of the smelting furnace main body, and a U-shaped mounting frame is fixedly mounted at the tops of the two supporting plates. When the double-shaft extension motor is started, the hollow rotating arm and the air injection ball are driven to rotate synchronously through the synchronous chain wheel and the synchronous chain, so that the aluminum alloy melt in the smelting furnace main body is purified in a rotary injection manner; the double-shaft extension motor operates to drive the filter sieve to move back and forth through an eccentric cam, an extrusion spring, a movable plate, a horizontal sliding rod, a U-shaped connecting seat, a fixed inserting rod and a connecting lug block, so that the added solvent powder is automatically screened; the situation that the air injection ball is blocked due to the fact that large-particle or blocky solvent powder is added carelessly can be effectively avoided, the situation that the filter sieve is blocked by the solvent powder can be effectively reduced, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy melt purification, in particular to an aluminum alloy melt composite powder spraying purification device. Background Art

[0002] During the smelting process, the surface of aluminum and aluminum alloys is easily oxidized to generate oxide inclusions, and it is also very easy to absorb gas, especially hydrogen. The presence of hydrogen and oxide inclusions will affect the purity of the cast rods, causing defects such as pores and slag inclusions in the cast rods, which can easily cause defects in the finished products of the subsequent processes. Therefore, in actual production, aluminum alloy melts are usually purified to improve the purity of the aluminum melt.

[0003] The patent with publication number CN107739843B in the prior art discloses an aluminum alloy melt purification device, which replaces the vent pipe used for traditional alloy smelting spray purification by arranging a rotatable spherical air injection device and a rotating arm rotating around a vertical axis to ensure that the contact area between the inert gas injection and the aluminum alloy melt is increased as much as possible during the aluminum alloy smelting process. The bubbles formed during the air injection will absorb impurities and hydrogen in the melt during the floating process, and bring these impurities and hydrogen to the surface of the melt, so that the melt is effectively purified. However, during use, if the added solvent spray powder is accidentally mixed with large particles or blocky solvent spray powder, it will be easy to block the spray ball, which requires frequent unblocking by the staff, has poor practicality and is inconvenient to use. Therefore, in order to solve the above problems, the present application proposes an aluminum alloy melt composite powder spray purification device. Utility Model Content

[0004] The purpose of the present application is to provide an aluminum alloy melt composite powder spraying purification device to solve the problem raised in the above background technology that if the added solvent spraying powder is accidentally mixed with large particles or blocky solvent spraying powder, it will easily cause the jet ball to be blocked.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a composite powder spraying purification device for aluminum alloy melt, comprising a furnace body, two support plates are fixedly arranged on the outer side of the furnace body, a U-shaped mounting frame is fixedly installed on the top of the two support plates, a fixed cross plate is fixedly installed on the inner walls on both sides of the U-shaped mounting frame away from each other, a mounting rotation hole is opened on the top of the fixed cross plate, a hollow rotating arm is rotatably installed in the mounting rotation hole, a gas injection ball located in the furnace body is fixedly arranged at the bottom end of the hollow rotating arm, a processing box is fixedly arranged on the top of the U-shaped mounting frame, a gas-powder mixing chamber is fixedly arranged on the bottom inner wall of the U-shaped mounting frame, and the The bottom of the processing box is fixedly connected to the top of the gas-powder mixing chamber through a powder outlet pipe, an electromagnetic control valve is fixedly provided on the powder outlet pipe, an air inlet pipe is fixedly provided on the side of the gas-powder mixing chamber, a connecting pipe is fixedly provided at the bottom of the gas-powder mixing chamber, the bottom end of the connecting pipe is rotatably connected to the top of the hollow rotating arm through a rotating connector, a filter screen is arranged in the processing box, a double-axle extension motor is fixedly provided on the top of the U-shaped mounting frame, a reciprocating drive assembly for moving the filter screen back and forth horizontally is connected to the top of the output shaft of the double-axle extension motor, and a synchronous transmission unit for synchronously rotating the hollow rotating arm is connected to the bottom end of the output shaft of the double-axle extension motor.

[0006] Preferably, the reciprocating drive assembly includes an eccentric cam fixedly sleeved on the top end of the output shaft of the double-axle extension motor, two horizontal sliding holes are provided on both sides of the processing box away from each other, horizontal sliding rods are slidably installed in the four horizontal sliding holes, and one end of each two corresponding horizontal sliding rods is jointly fixedly installed with a U-shaped connecting seat, and connecting ear blocks compatible with the U-shaped connecting seat are fixedly installed on both sides of the filter screen away from each other, and a fixing unit for fixing the connecting ear blocks is provided on the U-shaped connecting seat, wherein a moving plate is fixedly installed on the other ends of the two horizontal sliding rods, and the side of the moving plate is in contact with the circumferential side of the eccentric cam, and an extrusion spring is fixedly installed on the moving plate and the side of the processing box close to each other.

[0007] Preferably, the fixing unit includes two control pull blocks arranged directly above the U-shaped connecting seat, the top of the U-shaped connecting seat is provided with two insertion rod sliding holes, and fixed insertion rods are slidably installed in the two insertion rod sliding holes, and the top of the connecting ear block is provided with two fixed insertion holes, and the bottom ends of the two fixed insertion rods extend into the two fixed insertion holes respectively, and the two control pull blocks are fixedly installed on the top ends of the two fixed insertion rods respectively, and elastic reset elements are installed on the two control pull blocks.

[0008] Preferably, the elastic reset element comprises a reset tension spring sleeved on the fixed plug rod, and two ends of the reset tension spring are respectively fixedly mounted on the top of the U-shaped connecting seat and the bottom of the control pull block.

[0009] Preferably, a connecting rod is fixedly mounted on the mutually adjacent side portions of the two control pull blocks.

[0010] Preferably, the synchronous transmission unit includes two synchronous sprockets and a synchronous chain, the two synchronous sprockets are fixedly sleeved on the bottom end of the output shaft of the double-axle extension motor and the hollow rotating arm respectively, and the synchronous chain is adapted to be sleeved on the two synchronous sprockets.

[0011] Preferably, a matching sealing cover is rotatably connected to the top of the processing box.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. The utility model has a reasonable structure. When the double-axle extension motor is started, the hollow rotating arm and the jet ball are driven to rotate synchronously through the synchronous sprocket and the synchronous chain, so that the aluminum alloy melt in the furnace body can be purified by rotary spraying. At the same time, the operation of the double-axle extension motor can also drive the filter screen to move back and forth through the eccentric cam, the extrusion spring, the moving plate, the horizontal slide bar, the U-shaped connecting seat, the fixed plug rod, and the connecting ear block, so as to automatically screen the added solvent powder, which can effectively avoid the situation that the jet ball is blocked due to the accidental addition of large particles or block-shaped solvent powder, and can also effectively reduce the situation that the filter screen is blocked by the solvent powder, and has good practicality.

[0014] 2. In the utility model, when the connecting rod is pulled upward, the fixed plug rod will be driven to move out of the fixed socket through the control pull block, and the connecting ear block will be loosened. When the connecting rod is loosened, the fixed plug rod will be driven to automatically move into the fixed socket under the elastic force of the reset tension spring, and the connecting ear block will be fixed in the U-shaped connecting seat, thereby achieving the purpose of facilitating the disassembly and cleaning of the filter screen, and having better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an aluminum alloy melt composite powder spraying purification device according to an embodiment of the present application;

[0017] Figure 2 It is a partially enlarged three-dimensional structural schematic diagram of the connection between the processing box and the filter screen in the embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the side cross-sectional structure of the connection between the U-shaped connecting seat and the connecting ear block in the embodiment of the present application;

[0019] Figure 4 It is a schematic diagram of the front view structure of an aluminum alloy melt composite powder spraying purification device in an embodiment of the present application.

[0020] In the figure: 1. furnace body; 2. U-shaped mounting frame; 3. fixed horizontal plate; 4. hollow rotating arm; 5. jet ball; 6. processing box; 7. gas-powder mixing chamber; 8. air inlet pipe; 9. horizontal sliding rod; 10. U-shaped connecting seat; 11. connecting ear block; 12. filter screen; 13. double-axis extension motor; 14. eccentric cam; 15. moving plate; 16. extrusion spring; 17. synchronous sprocket; 18. synchronous chain; 19. fixed plug rod; 20. control pull block; 21. reset tension spring; 22. connecting rod; 23. sealing cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] refer to Figure 1-Figure 4The composite powder spraying purification device for aluminum alloy melt shown in the figure comprises a furnace body 1, two support plates are fixedly arranged on the outer side of the furnace body 1, a U-shaped mounting frame 2 is fixedly installed on the top of the two support plates, a fixed transverse plate 3 is fixedly installed on the inner walls of the two sides of the U-shaped mounting frame 2 which are far away from each other, a mounting rotating hole is opened on the top of the fixed transverse plate 3, a hollow rotating arm 4 is rotatably installed in the mounting rotating hole, a gas injection ball 5 located in the furnace body 1 is fixedly arranged at the bottom end of the hollow rotating arm 4, a processing box 6 is fixedly arranged on the top of the U-shaped mounting frame 2, and a gas-powder mixing chamber 7 is fixedly arranged on the inner wall of the bottom of the U-shaped mounting frame 2. The bottom of the processing box 6 is fixedly connected to the top of the air-powder mixing chamber 7 through a powder outlet pipe, an electromagnetic control valve is fixedly provided on the powder outlet pipe, an air inlet pipe 8 is fixedly provided on the side of the air-powder mixing chamber 7, a connecting pipe is fixedly provided at the bottom of the air-powder mixing chamber 7, the bottom end of the connecting pipe is rotatably connected to the top of the hollow rotating arm 4 through a rotating connector, a filter screen 12 is arranged in the processing box 6, a double-axle extension motor 13 is fixedly provided on the top of the U-shaped mounting frame 2, a synchronous sprocket 17 is fixedly sleeved on the bottom end of the output shaft of the double-axle extension motor 13 and the hollow rotating arm 4, and a synchronous chain 18 is commonly adapted and connected to the two synchronous sprockets 17. The advantage of such a configuration is that, through the configuration of the filter screen 12, the added solvent powder can be screened, thereby effectively avoiding the situation where the jet ball 5 is blocked due to the accidental addition of large particles or blocks of solvent powder. After screening, solvent powder of qualified size will enter the gas-powder mixing chamber 7 through the powder outlet pipe and be fully mixed with the purified gas, and then will be sprayed outward through the connecting pipe, the rotary connector, the hollow rotating arm 4 and the jet ball 5. During this process, the double-axle extension motor 13 can be started. The operation of the double-axle extension motor 13 will drive one of the synchronous sprockets 17 to rotate, and under the action of the synchronous chain 18, it will drive the other synchronous sprocket 17 to rotate together, and then it can drive the hollow rotating arm 4 and the jet ball 5 to rotate synchronously, and the aluminum alloy melt in the furnace body 1 is subjected to the purification treatment of rotary spraying.

[0024] An eccentric cam 14 is fixedly sleeved on the top end of the output shaft of the double-axle extension motor 13, two horizontal sliding holes are provided on both sides of the processing box 6 that are away from each other, and horizontal sliding rods 9 are slidably installed in the four horizontal sliding holes, and a U-shaped connecting seat 10 is fixedly installed on one end of every two corresponding horizontal sliding rods 9, and connecting ear blocks 11 adapted to the U-shaped connecting seat 10 are fixedly installed on both sides of the filter screen 12 that are away from each other, and a fixing unit for fixing the connecting ear blocks 11 is provided on the U-shaped connecting seat 10, wherein a moving plate 15 is fixedly installed on the other ends of the two horizontal sliding rods 9, and the side of the moving plate 15 is in contact with the circumferential side of the eccentric cam 14, and an extrusion spring 16 is fixedly installed on the side of the moving plate 15 and the processing box 6 that are close to each other. The advantage of such a configuration is that when the dual-axle extension motor 13 is running, it will also drive the eccentric cam 14 to rotate in a circle. With the cooperation of the extrusion spring 16, the circular rotation of the eccentric cam 14 will drive the movable plate 15 to move back and forth horizontally, and then the filter screen 12 can be driven to move back and forth through the horizontal slide bar 9, the U-shaped connecting seat 10, the fixing unit, and the connecting ear block 11 to screen the added solvent powder, which can effectively reduce the possibility that the filter screen 12 will be blocked by the solvent powder, thereby improving the practicality of the device.

[0025] As a preferred implementation scheme of this embodiment, the fixing unit includes two control pull blocks 20 arranged directly above the U-shaped connecting seat 10, the top of the U-shaped connecting seat 10 is provided with two plug rod sliding holes, and fixed plug rods 19 are slidably installed in the two plug rod sliding holes, and the top of the connecting ear block 11 is provided with two fixed sockets, and the bottom ends of the two fixed plug rods 19 extend into the two fixed sockets respectively. The two control pull blocks 20 are respectively fixedly installed on the top ends of the two fixed plug rods 19, and elastic reset elements are installed on the two control pull blocks 20. The advantage of such a configuration is that when the control pull block 20 is pulled upward, the fixed plug rod 19 will be driven to move out of the fixed plug hole and the connecting ear block 11 will be loosened. When the control pull block 20 is pressed downward, the fixed plug rod 19 will be driven to move into the fixed plug hole and the connecting ear block 11 will be fixed in the U-shaped connecting seat 10, thereby facilitating the disassembly and cleaning of the filter screen 12, and the practicality is better. When in use, the sealing cover 23 is first opened to put the solvent powder into the filter screen 12, and then the sealing cover 23 is closed, and the double-axis extension motor 13 is started. The operation of the double-axis extension motor 13 will drive the eccentric cam 14 to rotate in a circle. Under the cooperation of the extrusion spring 16, the circular rotation of the eccentric cam 14 will drive the movable plate 15 to move back and forth horizontally, and then through the horizontal slide bar 9, the U-shaped connecting seat 10, the fixed The fixed plug rod 19 and the connecting ear block 11 drive the filter screen 12 to move back and forth, and automatically screen the added solvent powder, which can effectively avoid the situation where the jet ball 5 is blocked due to the careless addition of large particles or blocks of solvent powder, and can effectively reduce the situation where the filter screen 12 is blocked by the solvent powder. After screening, the solvent powder of qualified size will enter the gas-powder mixing chamber 7 through the powder outlet pipe and be fully mixed with the purified gas, and then will be sprayed outward through the connecting pipe, the rotary connector, the hollow rotating arm 4 and the jet ball 5. In this process, the operation of the double-axis extension motor 13 will also drive the hollow rotating arm 4 and the jet ball 5 to rotate synchronously through the synchronous sprocket 17 and the synchronous chain 18, so as to perform a rotary spray purification treatment on the aluminum alloy melt in the furnace body 1.

[0026] In this embodiment, the elastic reset element includes a reset spring 21 sleeved on the fixed plug rod 19, and the two ends of the reset spring 21 are respectively fixedly mounted on the top of the U-shaped connection seat 10 and the bottom of the control pull block 20. The advantage of this arrangement is that when the control pull block 20 is released, the elastic force of the reset spring 21 will pull the control pull block 20 to automatically move downward, and then the fixed plug rod 19 can be automatically moved into the fixed plug hole, so that the connecting ear block 11 is always fixed in the U-shaped connection seat 10, which is stable and reliable.

[0027] Example 2

[0028] In this embodiment, the sides of the two control pull blocks 20 close to each other are fixedly installed with a connecting rod 22. The advantage of this arrangement is that it is convenient for the staff to pull the two control pull blocks 20 at the same time, which is more convenient for disassembly and cleaning. When the filter screen 12 is used for a long time, there are more large particles or block-shaped solvent spray powder stored in the filter screen 12. The staff can pull the connecting rod 22 upward, and the upward movement of the connecting rod 22 will drive the fixed plug rod 19 to move out of the fixed socket through the control pull block 20, and loosen the connecting ear block 11. At this time, the staff can directly remove the filter screen 12 for cleaning. After cleaning, the connecting ear block 11 is inserted into the U-shaped connecting seat 10, and then the connecting rod 22 is directly loosened. Under the elastic force of the reset tension spring 21, the control pull block 20 will be pulled to move downward automatically, and then the fixed plug rod 19 can be driven to automatically move into the fixed socket, and the connecting ear block 11 is always fixed in the U-shaped connecting seat 10, and the installation operation can be completed; the top of the processing box 6 is rotatably connected with a matching sealing cover 23. The advantage of such an arrangement is that the solvent powder spraying in the processing box 6 can be protected from dust.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite powder spraying purification device for aluminum alloy melt, comprising a furnace body (1), characterized in that: Two support plates are fixedly arranged on the outside of the furnace body (1), a U-shaped mounting frame (2) is fixedly mounted on the top of the two support plates, a fixed horizontal plate (3) is fixedly mounted on the inner walls of the two sides of the U-shaped mounting frame (2) which are away from each other, a mounting rotation hole is opened on the top of the fixed horizontal plate (3), a hollow rotating arm (4) is rotatably mounted in the mounting rotation hole, a gas injection ball (5) located in the furnace body (1) is fixedly arranged at the bottom end of the hollow rotating arm (4), a processing box (6) is fixedly arranged on the top of the U-shaped mounting frame (2), and the bottom inner wall of the U-shaped mounting frame (2) is fixedly mounted on the bottom inner wall of the U-shaped mounting frame (2). An air-powder mixing chamber (7) is fixedly provided on the top of the processing box (6), the bottom of the processing box (6) is fixedly connected to the top of the air-powder mixing chamber (7) through a powder outlet pipe, an electromagnetic control valve is fixedly provided on the powder outlet pipe, an air inlet pipe (8) is fixedly provided on the side of the air-powder mixing chamber (7), a connecting pipe is fixedly provided on the bottom of the air-powder mixing chamber (7), the bottom end of the connecting pipe is rotatably connected to the top end of the hollow rotating arm (4) through a rotating connector, a filter screen (12) is provided in the processing box (6), a double-axle extension motor (13) is fixedly provided on the top of the U-shaped mounting frame (2), and the double-axle extension motor (1 The top end of the output shaft of the double-axle extension motor (13) is connected to a reciprocating drive assembly for causing the filter screen (12) to move back and forth horizontally, the bottom end of the output shaft of the double-axle extension motor (13) is connected to a synchronous transmission unit for causing the hollow rotating arm (4) to rotate synchronously, the reciprocating drive assembly includes an eccentric cam (14) fixedly sleeved on the top end of the output shaft of the double-axle extension motor (13), two horizontal sliding holes are provided on both sides of the processing box (6) away from each other, and horizontal sliding rods (9) are slidably installed in the four horizontal sliding holes, and one end of each two corresponding horizontal sliding rods (9) is fixedly installed together. A U-shaped connecting seat (10) is installed, and connecting ear blocks (11) adapted to the U-shaped connecting seat (10) are fixedly installed on both sides of the filter screen (12) that are away from each other. A fixing unit for fixing the connecting ear blocks (11) is provided on the U-shaped connecting seat (10), wherein a moving plate (15) is fixedly installed on the other ends of the two horizontal sliding rods (9), and the side of the moving plate (15) is in contact with the circumferential side of the eccentric cam (14), and a pressing spring (16) is fixedly installed on the sides of the moving plate (15) and the processing box (6) that are close to each other.

2. The aluminum alloy melt composite powder spraying purification device according to claim 1 is characterized in that: The fixing unit comprises two control pull blocks (20) arranged directly above the U-shaped connection seat (10); the top of the U-shaped connection seat (10) is provided with two insertion rod sliding holes, and the two insertion rod sliding holes are both slidably installed with fixed insertion rods (19); the top of the connection ear block (11) is provided with two fixed insertion holes, and the bottom ends of the two fixed insertion rods (19) respectively extend into the two fixed insertion holes; the two control pull blocks (20) are respectively fixedly installed on the top ends of the two fixed insertion rods (19), and the two control pull blocks (20) are both installed with elastic reset elements.

3. The aluminum alloy melt composite powder spraying purification device according to claim 2 is characterized in that: The elastic reset element comprises a reset tension spring (21) sleeved on the fixed insertion rod (19), and two ends of the reset tension spring (21) are respectively fixedly mounted on the top of the U-shaped connecting seat (10) and the bottom of the control pull block (20).

4. The aluminum alloy melt composite powder spraying purification device according to claim 3 is characterized in that: A connecting rod (22) is fixedly mounted on the mutually adjacent side portions of the two control pull blocks (20).

5. The aluminum alloy melt composite powder spraying purification device according to claim 1, characterized in that: The synchronous transmission unit comprises two synchronous sprockets (17) and a synchronous chain (18); the two synchronous sprockets (17) are respectively fixedly sleeved on the bottom end of the output shaft of the double-axle extension motor (13) and the hollow rotating arm (4); and the synchronous chain (18) is adaptively sleeved on the two synchronous sprockets (17).

6. The aluminum alloy melt composite powder spraying purification device according to claim 1, characterized in that: A matching sealing cover (23) is rotatably connected to the top of the processing box (6).

Images