A dust collection device for magnesium powder processing

Abstract

The present invention relates to the technical field of metal powder production and processing. The present invention discloses a dust collection device for magnesium powder processing, which includes a chip cutter and an air curtain machine. A magnesium ingot inlet is provided on the side of the top of the chip cutter, and a magnesium powder collection separator is provided below the magnesium ingot inlet. An acid liquid waterfall column is provided at the center inside the magnesium powder collection separator, and an acid discharge impeller and an exhaust impeller are rotatably connected at the bottom. A cylindrical electromagnet is wrapped and sleeved inside the acid liquid waterfall column. The advantages of the present invention compared with the prior art are as follows: The magnesium powder collection separator is provided for suction, and the magnesium metal dust is carried into the magnesium powder collection separator by the air flow. The magnesium powder collection separator is equipped with an electromagnet capable of attracting magnesium dust and an impeller for discharging gas, which can separate the gas from the dust particles. At the same time, hydrochloric acid solution is pumped in from the outside to convert the magnesium dust into magnesium chloride solution. After purification, the magnesium chloride solution can be reused as the raw material for electrolytic magnesium production, thereby reducing material waste.

Description

Technical Field

[0001] The present invention relates to the technical field of metal powder production and processing, and specifically refers to a dust collection device for magnesium powder processing. Background Art

[0002] Magnesium powder processing requires a chip cutter with a cutter roll to process magnesium ingots into magnesium chips, and then the magnesium chips are crushed to form magnesium powder. The main working component of the chip cutter is the rotating cutter roll, which is installed in a housing with two openings. The opening for discharging magnesium chips is arranged at the bottom to discharge magnesium chips, and the opening for the magnesium ingot inlet is arranged on the side. The magnesium ingot is pushed into the housing by an external hydraulic cylinder to contact the cutter roll and be cut. During the cutting process, most of the magnesium chips fall to the discharge opening due to their own gravity, but some magnesium chips are thrown out from the magnesium ingot inlet because of their small particles. After long-term processing, there are often metal particles accumulated at the magnesium ingot inlet of the chip cutter, which is easy to form jamming during the process of pushing the magnesium ingot, resulting in unsmooth feeding and reducing the working efficiency of the device. In addition, magnesium metal is relatively active, and magnesium in the form of dust is flammable and explosive, which is easy to form a safety hazard in the processing workshop. Moreover, this part of magnesium metal is easy to mix with other dust particles and is difficult to separate, ultimately causing waste of resources. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that during the working process of the magnesium ingot chip cutter, it is easy to generate magnesium metal dust that is difficult to recover, resulting in waste of raw materials and easy to form dust explosion. A dust collection device for magnesium powder processing is provided.

[0004] To solve the above technical problem, the technical solution provided by the present invention is: A dust collection device for magnesium powder processing, which includes a chip cutter and an air curtain machine. The top side of the chip cutter is provided with a magnesium ingot inlet, the air curtain machine is arranged above the magnesium ingot inlet, a magnesium powder collection and separator is arranged below the magnesium ingot inlet, a first air guide hole is arranged at the top of the magnesium ingot inlet and is communicated with the air curtain machine, and a second air guide hole is arranged at the bottom and is communicated with the magnesium powder collection and separator.

[0005] The top of the magnesium powder collection and separator is provided with a diversion cover and is communicated with the magnesium ingot inlet. The center of the inside of the magnesium powder collection and separator is provided with an acid liquid waterfall column, and a drain acid impeller is rotatably connected at the bottom. A cylindrical electromagnet is wrapped and sleeved inside the acid liquid waterfall column. The top of the acid liquid waterfall column is fixedly provided with an acid liquid baffle cover, and the top of the acid liquid baffle cover is fixedly connected with the diversion cover;

[0006] The top of the acid liquid waterfall column is provided with a concave acid liquid tank. There is a baffle channel between the bottom of the acid liquid baffle cover and the outer edge of the acid liquid tank. The top of the outer edge of the acid liquid tank is provided with a grille and is fixedly connected with the bottom surface of the acid liquid baffle cover. The baffle channel extends to the outer wall surface of the acid liquid waterfall column. A liquid blocking ring is arranged around the outside of the acid liquid baffle cover, and the liquid blocking ring extends to the outside of the outer wall surface of the acid liquid waterfall column.

[0007] Furthermore, an exhaust impeller is provided at the top of the acid drainage impeller, a toothed ring is provided at the bottom of the acid drainage impeller, a hollow base is provided at the bottom of the magnesium powder collection and separator, the toothed ring extends to the center of the base, an impeller motor is provided inside the base, a gear is provided at the output end of the impeller motor and meshes with the toothed ring, the bottom of the acid liquid waterfall column extends into the base, and a through hole is provided at the axis of the acid drainage impeller and fits against the outer wall of the bottom of the acid liquid waterfall column.

[0008] Furthermore, an acid liquid inlet pipe is connected and provided at the center of the bottom of the acid liquid tank, the acid liquid inlet pipe passes through the toothed ring and extends into the base, the acid liquid inlet pipe passes through the side of the base and extends to the outside and is provided with an acid liquid inlet valve and is connected to an external acid liquid pump, and an electromagnet controller is provided inside the base and is electrically connected to a cylindrical electromagnet.

[0009] Furthermore, a downward concave air guiding ring is provided at the top of the exhaust impeller, and an air-liquid separation ring is provided at the connection between the bottom of the exhaust impeller and the acid drainage impeller.

[0010] Furthermore, a plurality of overflow ports are provided around the side wall of the magnesium powder collection and separator, the outside of the air-liquid separation ring extends to the overflow ports, an annular overflow tank is sleeved outside the overflow ports, a first overflow chamber is provided inside the overflow tank and is connected to the overflow ports, a second overflow chamber is provided below the outside of the first overflow chamber, a downward inclined channel is provided to connect the first overflow chamber and the second overflow chamber, a floating isolation ring that can float up and down is sleeved inside the first overflow chamber, a plurality of floats are provided on the inner side wall of the isolation ring, and an exhaust chamber is connected and provided at the top of the first overflow chamber.

[0011] Furthermore, an exhaust pipe is provided at the top of the magnesium powder collection and separator, an acid drainage pipe is provided at the bottom, the exhaust pipe is provided with an exhaust valve and is connected to an external argon recovery device, the acid drainage pipe is provided with an acid drainage valve and is connected to an external magnesium salt solution purification system, a connecting pipe is provided at the top of the overflow tank, an acid liquid overflow pipe is provided at the bottom of the side, the connecting pipe connects the exhaust pipe and the exhaust chamber, and the acid liquid overflow pipe connects the second overflow chamber and the acid drainage pipe.

[0012] Furthermore, a jet nozzle and a convergent throat are fixedly provided inside the acid drainage pipe, and the end opening of the acid liquid overflow pipe extends between the jet nozzle and the convergent throat.

[0013] Furthermore, an air suction port that cooperates with the second air guide hole is provided at the top of the guide cover.

[0014] Furthermore, an air exhaust port that cooperates with the first air guide hole is provided at the bottom of the air curtain machine, a flow guiding cone is provided at the bottom of the air curtain machine, the air exhaust port is connected and provided with the flow guiding cone, an air inlet is provided at the top of the air curtain machine, and the air inlet is provided with an argon valve and is connected to an external argon supply system.

[0015] The advantages of the present invention compared with the prior art are as follows:

[0016] A magnesium powder collection separator is provided for suction, and magnesium metal dust is carried into the magnesium powder collection separator through an air flow.

[0017] The magnesium powder collection separator is equipped with an electromagnet capable of attracting magnesium dust and an impeller for discharging gas, which can separate gas from dust particles.

[0018] Hydrochloric acid solution is pumped in from the outside to convert the magnesium dust into magnesium chloride solution, and the magnesium chloride solution can be reused as a raw material for electrolytic magnesium production after purification, thus reducing material waste. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a schematic structural diagram of a chip cutter.

[0021] Figure 3 It is a schematic structural diagram of a magnesium ingot inlet.

[0022] Figure 4 It is a schematic structural diagram of an air curtain machine.

[0023] Figure 5 It is a schematic cross-sectional view of the internal structure of an air curtain machine.

[0024] Figure 6 It is a schematic structural diagram of the magnesium powder collection separator of the present invention.

[0025] Figure 7 It is a schematic diagram of the internal structure of the magnesium powder collection separator of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the electromagnet of the present invention.

[0027] Figure 9 It is a schematic diagram of the internal structure of the acid liquid waterfall column of the present invention.

[0028] Figure 10 It is a schematic diagram of the explosion structure of the magnesium powder collection separator of the present invention.

[0029] Figure 11 It is Figure 10 A schematic enlarged view of the structure at position a in

[0030] Figure 12 It is a schematic cross-sectional view of the magnesium powder collection separator of the present invention.

[0031] Figure 13 It is Figure 12 A schematic diagram of the structure at position b in

[0032] Figure 14 It is a schematic cross-sectional view of the acid discharge pipe of the present invention.

[0033] Figure 15 is Figure 14 The structural schematic diagram at position c in

[0034] As shown in the figure: 1. Chip cutter; 2. Magnesium ingot inlet; 3. Magnesium ingot; 4. Air curtain machine; 5. Magnesium powder collection and separator; 6. First air guide hole; 7. Second air guide hole; 8. Air curtain machine motor; 9. Exhaust port; 10. Air inlet; 11. Argon valve; 12. Air curtain machine impeller; 13. Flow guide cover; 14. Suction port; 15. Base; 16. Acid liquid inlet valve; 17. Impeller motor; 18. Exhaust pipe; 19. Exhaust valve; 20. Acid discharge pipe; 21. Acid discharge valve; 22. Acid liquid waterfall column; 23. Acid liquid baffle cover; 24. Acid discharge impeller; 25. Exhaust impeller; 26. Electromagnet; 27. Tooth ring; 28. Gear; 29. Acid liquid inlet pipe; 30. Electromagnet controller; 31. Acid liquid tank; 32. Baffle channel; 33. Liquid retaining ring; 34. Grille; 35. Flow guide cone; 36. Air guide ring; 37. Gas-liquid separation ring; 38. Overflow tank; 39. First overflow chamber; 40. Second overflow chamber; 41. Exhaust chamber; 42. Isolation ring; 43. Float; 44. Overflow port; 45. Connecting pipe; 46. Acid liquid overflow pipe; 47. Jet nozzle; 48. Converging throat tube. Specific embodiments

[0035] The present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Combined with the attached Figure 1 、attached Figure 2 、attached Figure 3 、attached Figure 4 and attached Figure 6 A dust collection device for magnesium powder processing, which includes a chip cutter 1 and an air curtain machine 4. A magnesium ingot inlet 2 is provided on the top side of the chip cutter 1. The air curtain machine 4 is arranged above the magnesium ingot inlet 2. A magnesium powder collection and separator 5 is provided below the magnesium ingot inlet 2. A first air guide hole 6 is provided at the top of the magnesium ingot inlet 2 and is communicated with the air curtain machine 4. A second air guide hole 7 is provided at the bottom and is communicated with the magnesium powder collection and separator 5. The magnesium ingot 3 enters the chip cutter 1 through the magnesium ingot inlet 2.

[0037] Combined with the attached Figure 6 、attached Figure 7 、attached Figure 8 and attached Figure 9, a diversion hood 13 is provided at the top of the magnesium powder collection separator 5 and is connected to the magnesium ingot inlet 2. An air suction port 14 cooperating with the second air vent 7 is provided at the top of the diversion hood 13. A sour liquid waterfall column 22 is provided at the center inside the magnesium powder collection separator 5, and an acid discharge impeller 24 is rotatably connected to the bottom. A cylindrical electromagnet 26 is sleeved and wrapped inside the sour liquid waterfall column 22. An electromagnet controller 30 is arranged inside the base 15 and is electrically connected to the cylindrical electromagnet 26. An acid liquid baffle cover 23 is fixedly provided at the top of the sour liquid waterfall column 22, and the top of the acid liquid baffle cover 23 is fixedly connected to the diversion hood 13. A drain pipe 20 is provided at the bottom of the magnesium powder collection separator 5, and an acid discharge valve 21 is provided on the drain pipe 20 and is communicated with an external magnesium salt solution purification system.

[0038] Acidic solution can overflow from the top of the sour liquid waterfall column 22 and flow downward along the outer wall of the sour liquid waterfall column 22. For this application, dilute hydrochloric acid can be selected. Since an electromagnet 26 is sleeved inside the sour liquid waterfall column 22, the magnetic field formed after the electromagnet 26 is energized can attract paramagnetic substances. Since metallic magnesium has paramagnetism, when the dust generated during the operation of the chip cutter 1 enters the inside of the magnesium powder collection separator 5, the metallic magnesium particles therein are attracted by the electromagnet 26 and move towards the outer wall of the sour liquid waterfall column 22. Since the outer wall of the sour liquid waterfall column 22 is covered with acidic solution, magnesium will react here to form magnesium chloride solution, which flows downward to the acid discharge impeller 24 and is discharged to the drain pipe 20 and enters the external magnesium salt solution purification system.

[0039] Compared with directly separating metallic magnesium from metal dust, the purification of magnesium chloride solution is simpler and the product purity is higher, and the acidic solution can also reduce magnesium oxide on the surface of metallic magnesium dust.

[0040] Currently, magnesium chloride solution is often selected for electrolytic magnesium production. The magnesium chloride solution obtained by the reaction inside the magnesium powder collection separator 5 can be returned to the electrolytic magnesium process flow as its raw material after purification, thereby reducing the waste of magnesium.

[0041] Combined with the attached Figure 11 , a concave acid liquid tank 31 is provided at the top of the sour liquid waterfall column 22. A baffle channel 32 is provided between the bottom of the acid liquid baffle cover 23 and the outer edge of the acid liquid tank 31. A grille 34 is provided at the top of the outer edge of the acid liquid tank 31 and is fixedly connected to the bottom surface of the acid liquid baffle cover 23. The baffle channel 32 extends to the outer wall surface of the sour liquid waterfall column 22. A liquid baffle ring 33 is provided around the outside of the acid liquid baffle cover 23, and the liquid baffle ring 33 extends to the outside of the outer wall surface of the sour liquid waterfall column 22. An acid liquid inlet pipe 29 is communicated with the center of the bottom of the acid liquid tank 31. The acid liquid inlet pipe 29 passes through the gear ring 27 and extends into the base 15. The acid liquid inlet pipe 29 passes through the side surface of the base 15 and extends to the outside and is provided with an acid liquid inlet valve 16 and is communicated with an external acid liquid pump.

[0042] The external acid pump is connected to pump dilute hydrochloric acid into the acid tank 31 through the acid inlet pipe 29. The liquid level in the acid tank 31 continuously rises. When it rises to the outer edge of the acid tank 31, it overflows from the top of the acid baffle cover 23. The liquid retaining ring 33 can prevent the acid from splashing out too fast. By adjusting the acid flow rate through the acid inlet valve 16, the acid flowing on the outer wall of the acid waterfall column 22 can flow in a laminar flow, which can further avoid acid splashing.

[0043] Combined with the attached Figure 9 and the attached Figure 10 As shown in the figures, an exhaust impeller 25 is arranged at the top of the acid discharge impeller 24, and a toothed ring 27 is arranged at the bottom of the acid discharge impeller 24. A hollow base 15 is provided at the bottom of the magnesium powder collection separator 5. The toothed ring 27 extends to the center of the base 15. An impeller motor 17 is arranged inside the base 15. A gear 28 is arranged at the output end of the impeller motor 17 and meshes with the toothed ring 27. The bottom of the acid waterfall column 22 extends into the base 15. A through hole is provided at the axis of the acid discharge impeller 24 and fits with the outer wall of the bottom of the acid waterfall column 22. Acid-resistant seals are provided at the connection between the acid discharge impeller 24 and the acid waterfall column 22 and at the connection between the acid discharge impeller 24 and the inner wall of the magnesium powder collection separator 5. An exhaust pipe 18 is provided at the top of the magnesium powder collection separator 5. An exhaust valve 19 is provided on the exhaust pipe 18 and is connected to an external argon recovery device.

[0044] While the acid discharge impeller 24 rotates to discharge acid, the exhaust impeller 25 discharges the gas inside the magnesium powder collection separator 5 and reduces the internal pressure, causing the magnesium powder collection separator 5 to continuously suck gas from the magnesium ingot inlet 2. At the same time, the air curtain machine 4 blows air towards the magnesium ingot inlet 2, forming a flow field from top to bottom inside the magnesium ingot inlet 2. On the one hand, it can prevent external air from entering the magnesium ingot inlet 2, and on the other hand, it can blow the dust inside the magnesium ingot inlet 2 into the magnesium powder collection separator 5.

[0045] Combined with the attached Figure 9 and the attached Figure 10 As shown in the figures, a downward concave air guiding ring 36 is arranged at the top of the exhaust impeller 25. The air guiding ring 36 is downward concave and points towards the acid waterfall column 22. The intake air flow carrying metal particles is deflected by the air guiding ring 36 and flows towards the outer wall of the acid waterfall column 22, making the magnesium metal particles fully contact with the acid. A gas-liquid separation ring 37 is arranged at the connection between the bottom of the exhaust impeller 25 and the acid discharge impeller 24 to prevent the acid liquid level inside the device from being too high and contacting the impeller of the exhaust impeller 25. By controlling the opening degree of the acid discharge valve 21, the acid discharge flow rate is changed, and then the acid liquid level inside the device is adjusted so that the acid liquid level is slightly lower than the opening of the gas-liquid separation ring 37 to form a liquid seal to prevent gas from entering the acid discharge impeller 24.

[0046] Combined with the attached Figure 12 and the attached Figure 13, a plurality of overflow ports 44 are provided around the side wall of the magnesium powder collection separator 5. The outer side of the gas-liquid separation ring 37 extends to the overflow port 44. An annular overflow groove 38 is sleeved outside the overflow port 44. A first overflow chamber 39 is arranged inside the overflow groove 38 and communicated with the overflow port 44. A second overflow chamber 40 is provided below the outer side of the first overflow chamber 39. A downwardly inclined channel is provided to communicate between the first overflow chamber 39 and the second overflow chamber 40. A vertically floating isolation ring 42 is sleeved inside the first overflow chamber 39. A plurality of floats 43 are arranged on the inner side wall of the isolation ring 42. An exhaust chamber 41 is communicated with the top of the first overflow chamber 39.

[0047] When the acid liquid level inside the magnesium powder collection separator 5 is too high, the acid liquid flows through the gas-liquid separation ring 37 and the overflow port 44 into the first overflow chamber 39 and is blocked by the isolation ring 42. When the acid liquid in the wall accumulates to a certain height, such that the buoyancy received by the float 43 is greater than the gravity of it and the isolation ring 42, the isolation ring 42 is driven to float upward by the float 43, and the liquid in the first overflow chamber 39 flows into the second overflow chamber 40.

[0048] Combined with the attached Figure 14 and the attached Figure 15 , a connecting pipe 45 is arranged at the top of the overflow groove 38, and an acid liquid overflow pipe 46 is arranged at the bottom of the side. The connecting pipe 45 communicates the exhaust pipe 18 with the exhaust chamber 41, and the acid liquid overflow pipe 46 communicates the second overflow chamber 40 with the acid discharge pipe 20.

[0049] When gas enters the first overflow chamber 39, it can float upward by itself into the exhaust chamber 41 and is discharged through the connecting pipe 45 into the exhaust pipe 18.

[0050] Combined with the attached Figure 14 and the attached Figure 15 , a jet nozzle 47 and a convergent throat 48 are fixedly arranged inside the acid discharge pipe 20. The end opening of the acid liquid overflow pipe 46 extends between the jet nozzle 47 and the convergent throat 48. The jet nozzle 47 is arranged such that its jet port points to the convergent throat 48, and the inlet end of the jet nozzle 47 faces the inlet of the acid discharge pipe 20. The outlet end of the convergent throat 48 faces the acid discharge valve 21.

[0051] The acid liquid discharged by the acid discharge impeller 24 is ejected through the jet nozzle 47 and drives the surrounding fluid around the jet port to enter the convergent throat 48 together through viscosity and increases the speed and reduces the pressure. Therefore, a certain degree of negative pressure exists at the end opening of the acid liquid overflow pipe 46, which can perform negative pressure suction on the liquid in the second overflow chamber 40 and guide it to be discharged outside through the acid discharge pipe 20.

[0052] This application realizes the prevention of acid liquid overflow inside the magnesium powder collection separator 5 and realizes gas-liquid separation through the above method, which can reduce the entry of acid liquid into the exhaust impeller 25 and the entry of gas into the acid discharge impeller 24.

[0053] Combined with the attached Figure 4 and the attachedFigure 5 , the air curtain machine 4 is a Roots blower, which is internally provided with a pair of three-lobe air curtain machine impellers 12, and an air curtain machine motor 8 is arranged outside the air curtain machine 4 for driving. The Roots blower is a common technology and will not be further described in this application. The bottom of the air curtain machine 4 is provided with an air outlet 9 that cooperates with the first air guide hole 6. A flow guide cone 35 is provided at the bottom of the air curtain machine 4, and the air outlet 9 is communicated with the flow guide cone 35. An air inlet 10 is provided at the top of the air curtain machine 4. Since hydrogen is continuously generated by the chemical reaction in the magnesium powder collection separator 5, in order to ensure that hydrogen in the device does not explode, an argon valve 11 is provided at the air inlet 10 and is communicated with an external argon supply system. The argon gas flow is used as air curtain blowing. The air curtain blowing can reduce the entry of external air, and argon can reduce the oxygen content in the magnesium powder collection separator 5, thereby avoiding hydrogen explosion. In addition, the magnesium chips discharged from the chip cutter 1 are often selected in the form of negative pressure suction, so that the pressure in the chip cutter 1 is relatively low. Part of the argon gas blown by the air curtain machine 4 enters the chip cutter 1, so that the oxygen content inside the chip cutter 1 is also reduced to a certain extent, forming an argon protection and reducing the oxidation of magnesium chips.

[0054] The above describes the present invention and its implementation manners. This description is not restrictive, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A dust collection device for magnesium powder processing, comprising a chip cutter (1) and an air curtain machine (4), wherein a magnesium ingot inlet (2) is provided on the top side of the chip cutter (1), the air curtain machine (4) is arranged above the magnesium ingot inlet (2), a magnesium powder collecting separator (5) is provided below the magnesium ingot inlet (2), a first air guide hole (6) is provided at the top of the magnesium ingot inlet (2) and is connected to the air curtain machine (4), and a second air guide hole (7) is provided at the bottom and is connected to the magnesium powder collecting separator (5), characterized in that: The magnesium powder collecting separator (5) is provided with a flow guide cover (13) at the top thereof and is connected to the magnesium ingot inlet (2); an acid liquid waterfall column (22) is provided at the center thereof; an acid discharge impeller (24) is rotatably connected to the bottom thereof; a sleeve-shaped electromagnet (26) is wrapped inside the acid liquid waterfall column (22); an acid liquid deflector cover (23) is fixedly provided at the top of the acid liquid waterfall column (22); and the top of the acid liquid deflector cover (23) is fixedly connected to the flow guide cover (13); A concave acid tank (31) is provided at the top of the acid liquid waterfall column (22); a baffle channel (32) is provided between the bottom of the acid liquid baffle cover (23) and the outer edge of the acid liquid tank (31); a grille (34) is provided at the top of the outer edge of the acid liquid tank (31) and is fixedly connected to the bottom surface of the acid liquid baffle cover (23); the baffle channel (32) extends to the outer wall surface of the acid liquid waterfall column (22); a liquid retaining ring (33) is provided around the outer side of the acid liquid baffle cover (23); and the liquid retaining ring (33) extends to the outer side of the outer wall surface of the acid liquid waterfall column (22); The magnesium powder collecting separator (5) has a plurality of overflow ports (44) arranged around its side wall, an annular overflow groove (38) is sleeved on the outside of the overflow port (44), a first overflow chamber (39) is arranged inside the overflow groove (38) and is communicated with the overflow port (44), a second overflow chamber (40) is arranged below the outside of the first overflow chamber (39), a downwardly inclined channel is arranged between the first overflow chamber (39) and the second overflow chamber (40), an isolation ring (42) that can float up and down is sleeved inside the first overflow chamber (39), a plurality of floats (43) are arranged on the inner side wall of the isolation ring (42), and an exhaust chamber (41) is arranged at the top of the first overflow chamber (39) and is communicated with.

2. A dust collection device for magnesium powder processing according to claim 1, characterized in that: An exhaust impeller (25) is arranged on the top of the acid-discharging impeller (24), a gear ring (27) is arranged on the bottom of the acid-discharging impeller (24), a hollow base (15) is arranged on the bottom of the magnesium powder collecting separator (5), the gear ring (27) extends to the center of the base (15), an impeller motor (17) is arranged in the base (15), a gear (28) is arranged at the output end of the impeller motor (17) and meshes with the gear ring (27), the bottom of the acid liquid waterfall column (22) extends into the base (15), and the axis of the acid-discharging impeller (24) is arranged in a through hole shape to fit the outer wall of the bottom of the acid liquid waterfall column (22).

3. A dust collection device for magnesium powder processing according to claim 2, characterized in that: An acid inlet pipe (29) is arranged at the center of the bottom of the acid tank (31), and the acid inlet pipe (29) passes through the gear ring (27) and extends into the base (15). The acid inlet pipe (29) passes through the side of the base (15) and extends to the outside and is provided with an acid inlet valve (16) and is connected to an external acid pump. An electromagnet controller (30) is arranged in the base (15) and is electrically connected to the cylindrical electromagnet (26).

4. A dust collection device for magnesium powder processing according to claim 2, characterized in that: A concave air induction ring (36) is provided at the top of the exhaust impeller (25), and a gas-liquid separation ring (37) is provided at the bottom of the exhaust impeller (25) where it connects with the acid exhaust impeller (24). The outside of the gas-liquid separation ring (37) extends to the overflow port (44).

5. The dust collection device for magnesium powder processing according to claim 1, characterized in that: The magnesium powder collecting separator (5) is provided with an exhaust pipe (18) at the top and an acid discharge pipe (20) at the bottom. The exhaust pipe (18) is provided with an exhaust valve (19) and is connected to an external argon recovery device. The acid discharge pipe (20) is provided with an acid discharge valve (21) and is connected to an external magnesium salt solution purification system. A connecting pipe (45) is provided at the top of the overflow tank (38), and an acid overflow pipe (46) is provided at the bottom of the side. The connecting pipe (45) connects the exhaust pipe (18) with the exhaust chamber (41), and the acid overflow pipe (46) connects the second overflow chamber (40) with the acid discharge pipe (20).

6. A dust collection device for magnesium powder processing according to claim 5, characterized in that: A jet nozzle (47) and a convergent throat (48) are fixedly provided in the acid discharge pipe (20), and the end opening of the acid overflow pipe (46) extends between the jet nozzle (47) and the convergent throat (48).

7. A dust collection device for magnesium powder processing according to claim 1, characterized in that: The top of the air guide cover (13) is provided with an air intake port (14) that matches the second air guide hole (7).

8. The dust collection device for magnesium powder processing according to claim 1, characterized in that: An exhaust port (9) cooperating with the first air guide hole (6) is provided at the bottom of the air curtain machine (4), a guide cone (35) is provided at the bottom of the air curtain machine (4), the exhaust port (9) and the guide cone (35) are connected, an air inlet (10) is provided at the top of the air curtain machine (4), and an argon valve (11) is provided at the air inlet (10) and is connected to an external argon supply system.

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