Reduction equipment for metal powder

Abstract

The utility model relates to the technical field of metal powder production, and provides metal powder reduction equipment which comprises a base, supporting frames are fixedly connected to the two sides of the top of the base, a first motor is fixedly connected to one side face of the supporting frame on one side, and the output end of the first motor is fixedly connected with a rotating shaft; the zero end of the rotating shaft is fixedly connected with a crushing roller, the annular outer wall of the crushing roller is fixedly connected with a fixing plate, the interior of the fixing plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a gear, and the gear is located in the crushing roller; and gas can be input into the crushing roller by starting the gas inlet and outlet pump, semi-finished micro-nano iron powder is obtained through direct reduction in the pure hydrogen atmosphere, the micro-nano iron powder with different granularities is obtained through scattering and grading under nitrogen protection, and the gas can be conveyed back into the recycling bin through the gas inlet and outlet pump to be recycled.

Description

Technical Field

[0001] This utility model relates to the field of metal powder production technology, specifically to a reduction device for metal powder. Background Technology

[0002] Metal powder reduction refers to the process of reducing metal compounds into metal powder through chemical or thermodynamic methods. Reduced iron powder is a gray or black powder mainly containing elemental iron, commonly used for food preservation and as a high-quality reducing agent in chemical production. Reduced copper powder is obtained from copper oxide through a reduction reaction and is mainly used in the chemical industry.

[0003] A search revealed an existing patent (CN214768941U) that discloses a heat treatment reduction device for producing composite copper powder, comprising an overall device, a main housing, a gas storage bottle, and a liquid storage bottle. The main housing is fixedly connected to the middle of the overall device. A top cover is embedded in the top of the main housing. A gas storage bottle is movably connected to the left side of the main housing, and a liquid storage bottle is movably connected to the right side. A vacuum pump is fixedly connected to the middle of the top of both sides of the main housing, with a gas delivery pipe penetrating through the middle of the vacuum pump. An exhaust pipe is embedded in the top right side of the liquid storage bottle. A drawer is embedded in the bottom front of the main housing. The interior of the main housing... A heating coil is embedded in the middle of the main box. A control circuit board is connected to the bottom of the heating coil, and a timer is connected to the right end of the control circuit board. An alarm is connected to the right end of the timer. A telescopic push plate is fixedly connected to the inside right side of the main box, and a telescopic baffle is fixedly connected to the inside left side of the main box. A powder conveying pipe is embedded in the middle of the inside left side of the main box. A pull plate is fixedly connected to the left side of the drawer, and a drawer body is movably connected to the right side of the pull plate. An anti-stick plate is fixedly connected to the inside of the drawer body. A bottle cylinder is fixedly connected to the bottom of the liquid storage bottle, and a bottle cap is embedded in the top of the bottle cylinder. This utility model uses a reduction mechanism. When the heating coil heats, it heats the composite copper powder at the top. When the timer counts down, the control circuit board stops the heating coil. The operation of the reduction mechanism achieves a heat treatment reduction effect on the composite copper powder. Moreover, the reduction mechanism avoids the trouble of constantly monitoring the copper powder reduction process, thus greatly improving the efficiency of copper powder reduction.

[0004] However, in the above scheme, using a single heating method for thermal reduction treatment can easily lead to a large amount of energy consumption, is not environmentally friendly enough, and can easily increase production costs. In addition, it requires manual removal of the reduced iron powder, making it difficult to apply to the large-scale production of raw materials such as iron concentrate.

[0005] In view of this, the present invention proposes a reduction device for metal powder. Utility Model Content

[0006] This invention proposes a reduction device for metal powder, which solves the problems of high energy consumption, insufficient environmental friendliness, and increased production costs associated with using a single heating method for thermal reduction in related technologies.

[0007] The technical solution of this utility model is as follows: A metal powder reduction device includes a base; support frames are fixedly connected to both sides of the top of the base; a motor is fixedly connected to one side of one support frame; a rotating shaft is fixedly connected to the output end of the motor; a crushing drum is fixedly connected to one end of the rotating shaft; a fixing plate is fixedly connected to the annular outer wall of the crushing drum; a motor is fixedly connected to the inside of the fixing plate; a gear is fixedly connected to the output end of the motor; the gear is located inside the crushing drum; a rotating shaft is fixedly connected to the other side of the crushing drum; the rotating shaft is a hollow pipe; the rotating shaft connects to the inside of the crushing drum; the rotating shaft passes through the inside of the other support frame; a pressing plate is fitted to the other side of the other support frame; the pressing plate presses and seals the rotating shaft; the rotating shaft passes through the support frame; the rotating shaft rotates in contact with the pressing plate; a second conveying pipe and a first conveying pipe are inserted and fixedly connected inside the pressing plate; an inlet and outlet air pump are fixedly connected inside both the second and first conveying pipes; the second and first conveying pipes are connected to a rotating shaft. The moving shaft cylinder is connected to the crushing drum. A nitrogen tank is fixedly connected to the other end of the second conveying pipe, and a hydrogen tank is fixedly connected to the other end of the first conveying pipe. Both the nitrogen and hydrogen tanks have partitions in the middle. A solenoid valve is fixedly connected inside each partition. The upper and lower layers of the partition are a recovery chamber and a compression chamber, respectively. A discharge valve is installed inside the annular sidewall of the crushing drum, connecting the inner and outer sides of the crushing drum. A conveyor belt is installed above the interior of the base, and the discharge valve is positioned opposite the conveyor belt. The gears, after the motor is started, rotate and mesh with each other to crush iron or copper powder. At the same time, the rotating shaft rotates at high speed and impacts the surface of the gears to crush the powder. This enables rapid crushing of the powder. The compression chamber allows compressed gas to be discharged into the recovery chamber after the solenoid valve is opened. Then, the inlet and outlet air pumps can be started to input gas into the crushing drum, achieving direct reduction to obtain semi-finished micro-nano iron powder under a pure hydrogen atmosphere. After being dispersed and classified under nitrogen protection, micro-nano iron powder of different particle sizes is obtained. The gas can be transported back to the recovery chamber for recycling by the inlet and outlet air pumps.

[0008] Preferably, the fixing plate and the discharge valve are located on opposite sides inside the crushing drum. The other end of the gear is inserted into the annular side plate of the crushing drum and rotates. Multiple discharge valves are provided, and the multiple discharge valves are distributed in a straight line at equal intervals inside the crushing drum. The bottom of the gear is away from the discharge valve. The discharge valves enable automatic discharge of the crushed and reduced powder, which is then automatically output by the conveyor belt for automatic collection.

[0009] Preferably, an exhaust hole is fixedly connected to one side of the crushing drum, and an exhaust valve is fixedly connected inside the exhaust hole. A slot is opened inside the support frame on one side, and the exhaust hole is rotatably inserted into the slot. The exhaust hole can be used to discharge and reduce the pressure of the gas inside the crushing drum.

[0010] Preferably, the first conveying pipe and the second conveying pipe pass through the interior of the pressing plate from the same side, and both the first conveying pipe and the second conveying pipe are far away from the inner wall of the rotating shaft cylinder.

[0011] Preferably, a connecting piece is provided on the other side of the top of the base, and a rod is inserted through the inside of the connecting piece. The rod passes through the inside of the connecting piece and the base from top to bottom. Holes are provided inside the base and the connecting piece to accommodate the insertion rod.

[0012] Preferably, a base plate is fixedly connected to the other side of the connecting piece, and the hydrogen tank and nitrogen tank are fixed to the top of the base plate. Connecting pieces are fixedly connected to both ends of one side of the base plate. The stability of the base and the base plate after they are fixed can be maintained by the connecting pieces on both sides.

[0013] Preferably, rollers are fixedly connected to the four corners of the bottom of the base plate, and anti-slip pads are fixedly connected to the four corners of the bottom of the base. The bottom of the rollers and the anti-slip pads are located on the same horizontal plane. The rollers can maintain the stability of the equipment during operation. The rollers can separate the connecting piece from the base after the insertion rod is pulled out, thereby enabling the second conveying pipe, the first conveying pipe, and the pressing plate to be pulled out for cleaning.

[0014] Preferably, a feed gate is provided inside the annular sidewall of the crushing drum, and the feed gate is located near the fixed plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this invention, the gears are designed so that after the motor is started, the gears rotate and mesh with each other to crush iron or copper powder. At the same time, the rotating shaft is started to rotate at high speed and impact the surface of the gears to crush the powder. This enables rapid crushing of the powder. The compression chamber allows compressed gas to be discharged into the recovery chamber after the solenoid valve is opened. Then, the inlet and outlet air pumps are started to input gas into the crushing drum, so that semi-finished micro-nano iron powder can be directly reduced in a pure hydrogen atmosphere. After being dispersed and classified under nitrogen protection, micro-nano iron powder of different particle sizes is obtained. The gas can be transported back to the recovery chamber by the inlet and outlet air pumps for recycling.

[0017] In this utility model, the discharge valve enables automatic discharge of the crushed and reduced powder, which is then automatically output and collected by the conveyor belt. The exhaust port allows for the release and depressurization of the internal gas of the crushing drum. The connecting plates on both sides maintain the stability of the base and bottom plate after they are fixed. The rollers maintain the stability of the equipment during operation. The rollers also allow the connecting plates to separate from the base after the insertion rod is pulled out, thereby enabling the removal and cleaning of the second conveying pipe, the first conveying pipe, and the pressing plate. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the rear view of this utility model;

[0020] Figure 2 This is a frontal three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a three-dimensional schematic diagram of the present invention viewed from below;

[0022] Figure 4 This is a side view of the internal structure of this utility model;

[0023] Figure 5 For this utility model Figure 1 A magnified structural diagram of point A in the middle.

[0024] In the diagram: 1. Base; 2. Support frame; 3. Motor 1; 4. Rotating shaft; 5. Crushing drum; 6. Fixing plate; 7. Motor 2; 8. Gear; 9. Discharge valve; 10. Conveyor belt; 11. Rotating shaft cylinder; 12. Pressing plate; 13. Hydrogen tank; 14. Conveying pipe 1; 15. Nitrogen tank; 16. Conveying pipe 2; 17. Base plate; 18. Inlet / outlet air pump; 19. Connecting piece; 20. Insert rod; 21. Exhaust hole; 22. Exhaust valve; 23. Groove; 24. Roller; 25. Anti-slip pad; 26. Partition plate; 27. Solenoid valve. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example 1

[0026] A preferred embodiment of the metal powder reduction device provided by this utility model is, for example... Figures 1 to 5 As shown: A metal powder reduction device includes a base 1. Support frames 2 are fixedly connected to both sides of the top of the base 1. A motor 3 is fixedly connected to one side of one support frame 2. A rotating shaft 4 is fixedly connected to the output end of the motor 3. A crushing drum 5 is fixedly connected to one end of the rotating shaft 4. A fixing plate 6 is fixedly connected to the annular outer wall of the crushing drum 5. A second motor 7 is fixedly connected inside the fixing plate 6. A gear 8 is fixedly connected to the output end of the second motor 7, located inside the crushing drum 5. A rotating shaft cylinder 11 is fixedly connected to the other side of the crushing drum 5. The rotating shaft cylinder 11 is a hollow pipe, connecting to the interior of the crushing drum 5 and penetrating the interior of the other support frame 2. A pressing plate 12 is fitted to the other side of the other support frame 2, pressing and sealing the rotating shaft cylinder 11. The rotating shaft cylinder 11 penetrates the support frame 2. 11 is fitted and rotated with the pressing plate 12. The pressing plate 12 has a conveying pipe 2 16 and a conveying pipe 14 inserted and fixed inside. The conveying pipe 2 16 and the conveying pipe 14 are both fixedly connected to the inlet and outlet air pumps 18. The conveying pipe 2 16 and the conveying pipe 14 are connected to the crushing drum 5 through the rotating shaft cylinder 11. The other end of the conveying pipe 2 16 is fixedly connected to the nitrogen tank 15. The other end of the conveying pipe 14 is fixedly connected to the hydrogen tank 13. The middle position inside the nitrogen tank 15 and the hydrogen tank 13 is provided with a partition 26. The partition 26 is fixedly connected to the solenoid valve 27. The upper and lower layers of the partition 26 are the recovery chamber and the compression chamber, respectively. The annular side wall of the crushing drum 5 is provided with a discharge valve 9. The discharge valve 9 connects the inner and outer sides of the crushing drum 5. The upper part of the base 1 is provided with a conveyor belt 10. The discharge valve 9 is set opposite to the conveyor belt 10.

[0027] It should be noted that existing reduction equipment still has certain shortcomings. It can only use a single heating method for thermal reduction treatment, which can easily lead to a large amount of energy consumption, is not environmentally friendly enough, and can easily increase production costs.

[0028] In this embodiment, the gears 8, when the motor 7 is started, rotate and mesh with each other to crush iron or copper powder. At the same time, the rotating shaft 4 is started to rotate at high speed and impact the surface of the gears 8 to crush the powder. This enables rapid crushing of the powder. The compression chamber allows compressed gas to be discharged into the recovery chamber after the solenoid valve 27 is opened. Then, the inlet and outlet air pump 18 is started to input gas into the crushing drum 5, so that semi-finished micro-nano iron powder can be directly reduced in a pure hydrogen atmosphere. After being dispersed and graded under nitrogen protection, micro-nano iron powder of different particle sizes is obtained. The gas can be transported back to the recovery chamber by the inlet and outlet air pump 18 for recycling.

[0029] In a further preferred embodiment of this utility model, the fixing plate 6 and the discharge valve 9 are arranged opposite each other on both sides inside the crushing drum 5, the other end of the gear 8 is inserted into the annular side plate of the crushing drum 5 and rotates, and multiple discharge valves 9 are provided, which are distributed in a straight line at equal intervals inside the crushing drum 5, and the bottom of the gear 8 is far away from the discharge valves 9.

[0030] In this embodiment, the discharge valve 9 enables automatic discharge of the crushed and reduced powder, which is then automatically output by the conveyor belt 10 for automatic collection.

[0031] In a further preferred embodiment of the present invention, an exhaust hole 21 is fixedly connected to one side of the crushing drum 5, and an exhaust valve 22 is fixedly connected inside the exhaust hole 21. A slot 23 is opened in the inner opening of the support frame 2 on one side, and the exhaust hole 21 is rotatably inserted inside the slot 23.

[0032] In this embodiment, the internal gas of the crushing drum 5 can be discharged and depressurized through the exhaust port 21.

[0033] In a further preferred embodiment of the present invention, the first conveying pipe 14 and the second conveying pipe 16 pass through the interior of the pressing plate 12 from the same side, and both the first conveying pipe 14 and the second conveying pipe 16 are far away from the inner wall of the rotating shaft cylinder 11. Example 2

[0034] Based on Example 1, a preferred embodiment of the metal powder reduction device provided by this utility model is as follows: Figures 1 to 5 As shown: A connecting piece 19 is mounted on the other side of the top of the base 1. A rod 20 is inserted through the inside of the connecting piece 19. The rod 20 passes through the inside of the connecting piece 19 and the base 1 from top to bottom. Holes are opened in the inside of both the base 1 and the connecting piece 19 to accommodate the insertion of the rod 20.

[0035] In a further preferred embodiment of the present invention, a base plate 17 is fixedly connected to the other side of the connecting piece 19, and the hydrogen tank 13 and the nitrogen tank 15 are fixed to the top of the base plate 17. The connecting pieces 19 are fixedly connected to both ends of one side of the base plate 17.

[0036] In this embodiment, the stability of the base 1 and the base plate 17 after they are fixed can be maintained by the connecting pieces 19 on both sides.

[0037] In a further preferred embodiment of this utility model, rollers 24 are fixedly connected to the four corners of the bottom of the base plate 17, and anti-slip pads 25 are fixedly connected to the four corners of the bottom of the base 1. The bottoms of the rollers 24 and the anti-slip pads 25 are located on the same horizontal plane.

[0038] In this embodiment, the rollers 24 can maintain the stability of the equipment during operation. The rollers 24 can also separate the connecting piece 19 from the base 1 after the insertion rod 20 is pulled out, thereby enabling the second conveying pipe 16, the first conveying pipe 14 and the pressing plate 12 to be pulled out and cleaned.

[0039] In a further preferred embodiment of this utility model, a feed gate is provided inside the annular sidewall of the crushing drum 5, and the feed gate is located near the fixed plate 6.

[0040] The working principle of this utility model is as follows: After starting motor 27, gear 8 rotates and meshes with each other to crush iron or copper powder. At the same time, the rotating shaft 4 is started to rotate at high speed and impact the surface of gear 8 to crush the powder, which can achieve rapid crushing of powder. The solenoid valve 27 is started, and gas is discharged from the compression chamber into the recovery chamber. Then, the inlet and outlet air pump 18 is started to input gas into the crushing drum 5. Under the pure hydrogen atmosphere, the powder is directly reduced to obtain semi-finished micro-nano iron powder. After being dispersed and classified under nitrogen protection, micro-nano iron powder of different particle sizes is obtained. The gas can be transported back to the recovery chamber for recycling by the inlet and outlet air pump 18. After reduction, the discharge valve 9 is started to automatically discharge the crushed and reduced powder, and then the conveyor belt 10 automatically outputs the powder. The exhaust gas is discharged and depressurized through the exhaust port 21. After pulling out the insert rod 20, the connecting piece 19 is separated from the base 1. Pulling the bottom plate, the roller 24 at the bottom pulls out the second conveying pipe 16, the first conveying pipe 14 and the pressing plate 12 for easy cleaning.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A reduction device for metal powder, characterized in that, The base (1) includes a support frame (2) fixedly connected to both sides of the top of the base (1). A motor (3) is fixedly connected to one side of one support frame (2). A rotating shaft (4) is fixedly connected to the output end of the motor (3). A crushing drum (5) is fixedly connected to one end of the rotating shaft (4). A fixing plate (6) is fixedly connected to the annular outer wall of the crushing drum (5). A motor (7) is fixedly connected inside the fixing plate (6). A gear (8) is fixedly connected to the output end of the motor (7). Located inside the crushing drum (5), a rotating shaft cylinder (11) is fixedly connected to the other side of the crushing drum (5). The rotating shaft cylinder (11) is a hollow pipe that connects to the interior of the crushing drum (5). The rotating shaft cylinder (11) passes through the interior of the other side support frame (2). A pressure plate (12) is fitted to the other side of the other side support frame (2). The pressure plate (12) presses and seals the rotating shaft cylinder (11). The rotating shaft cylinder (11) passes through the support frame (2). The pressure plate (12) is fitted and rotated. The pressure plate (12) has a second conveying pipe (16) and a first conveying pipe (14) inserted and fixed inside. Both the second conveying pipe (16) and the first conveying pipe (14) are fixedly connected to an inlet and outlet air pump (18). The second conveying pipe (16) and the first conveying pipe (14) are connected to the crushing drum (5) through a rotating shaft cylinder (11). The other end of the second conveying pipe (16) is fixedly connected to a nitrogen tank (15), and the other end of the first conveying pipe (14) is fixedly connected to a hydrogen tank. The tank (13), the nitrogen tank (15) and the hydrogen tank (13) are both equipped with a partition (26) in the middle position. The partition (26) is fixedly connected with a solenoid valve (27). The upper and lower layers of the partition (26) are a recovery chamber and a compression chamber, respectively. The crushing drum (5) is equipped with a discharge valve (9) inside the annular side wall. The discharge valve (9) connects the inner and outer sides of the crushing drum (5). The base (1) is equipped with a conveyor belt (10) above the interior. The discharge valve (9) is opposite to the conveyor belt (10).

2. The metal powder reduction equipment according to claim 1, characterized in that, The fixed plate (6) and the discharge valve (9) are located on opposite sides inside the crushing drum (5). The other end of the gear (8) is inserted into the annular side plate of the crushing drum (5) and rotates. There are multiple discharge valves (9). The multiple discharge valves (9) are distributed in a straight line at equal intervals inside the crushing drum (5). The bottom of the gear (8) is far away from the discharge valve (9).

3. The metal powder reduction equipment according to claim 1, characterized in that, The crushing drum (5) is fixedly connected to one side of an exhaust hole (21), and an exhaust valve (22) is fixedly connected inside the exhaust hole (21). A slot (23) is opened in the inner opening of the support frame (2) on one side, and the exhaust hole (21) is adapted to rotate inside the slot (23).

4. The metal powder reduction equipment according to claim 1, characterized in that, The first conveying pipe (14) and the second conveying pipe (16) pass through the interior of the pressing plate (12) from the same side, and both the first conveying pipe (14) and the second conveying pipe (16) are far away from the inner wall of the rotating shaft cylinder (11).

5. The metal powder reduction equipment according to claim 1, characterized in that, A connecting piece (19) is mounted on the other side of the top of the base (1). A rod (20) is inserted through the inside of the connecting piece (19). The rod (20) passes through the inside of the connecting piece (19) and the base (1) from top to bottom. Holes are opened in the inside of the base (1) and the connecting piece (19) to accommodate the insertion rod (20).

6. The metal powder reduction equipment according to claim 5, characterized in that, A base plate (17) is fixedly connected to the other side of the connecting piece (19). The hydrogen tank (13) and the nitrogen tank (15) are fixed to the top of the base plate (17). The connecting pieces (19) are fixedly connected to both ends of one side of the base plate (17).

7. The metal powder reduction device according to claim 6, characterized in that, Rollers (24) are fixedly connected to the four corners of the bottom of the base plate (17), and anti-slip pads (25) are fixedly connected to the four corners of the bottom of the base (1). The bottoms of the rollers (24) and the anti-slip pads (25) are located on the same horizontal plane.

8. The metal powder reduction equipment according to claim 1, characterized in that, The crushing drum (5) has a feed gate inside its annular sidewall, which is located near the fixed plate (6).

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