Water atomization iron powder production device

Abstract

The utility model relates to a water atomization iron powder production device which comprises a steel ladle conveying vehicle and a transition box conveying vehicle which move front and back, the transition box conveying vehicle is fixedly connected with a transition box with an upper opening, a steel ladle is placed on the steel ladle conveying vehicle, an outlet in the lower end of the steel ladle is located above the transition box, and a discharging opening is formed in the bottom of the transition box. The steel ladle is placed on the steel ladle conveying trolley, molten iron in the steel ladle flows downwards into the transition box and flows downwards into the atomization pool from the discharging openings in the lower end of the transition box, the atomization pool is arranged in the transition box, and the atomization pool is arranged in the transition box. Water spray is sprayed to the molten steel flowing downwards through the water spraying opening in the side face of the atomization pool, iron powder is formed through impact, and due to the fact that the molten steel flows downwards from the interior of the transition box, the height change of the liquid level of the molten steel in the transition box is small, the difference of the downward flowing speed is small, the produced iron powder is uniform, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of iron powder production equipment, in particular to a water atomized iron powder production device. Background Technique

[0002] At present, the manufacturing processes of iron powder for powder metallurgy generally adopt the ball milling method and the atomization method. In the ball milling method, iron is ground into iron powder in a ball mill. During the grinding process, the surface layer of the iron powder is oxidized, and the iron powder still needs to be obtained through a reduction process; the water atomization method is to atomize molten iron into powder by high-pressure water. Currently, the water atomization process is usually used for large-scale production.

[0003] During the water atomization production process, in order to improve production efficiency, the molten iron is placed in a ladle, and the ladle is hoisted onto a rail car by a crane. The rail car drives the ladle to move above the atomization pool. The molten iron is discharged outwards from the outlet at the bottom of the ladle. In the atomization pool, iron powder is formed by the impact of water mist. The problem of the current production device is that when the molten iron just starts to flow downwards, due to the high pressure of the molten iron, the flow rate is fast. When the molten iron is about to run out, the flow rate of the molten iron slows down, while the speed of the water mist sprayed from the water spray nozzle remains unchanged. Therefore, it is easy to cause the generated iron powder to be uneven. Content of the Utility Model

[0004] The utility model aims at the deficiencies of the prior art and provides a water atomized iron powder production device.

[0005] The utility model is realized by the following technical solutions. A water atomized iron powder production device is provided, which includes a ladle transport vehicle and a transition box transport vehicle that both move back and forth. An upper-opening transition box is fixedly connected to the transition box transport vehicle. The ladle is placed on the ladle transport vehicle, and the lower end outlet of the ladle is located above the transition box. A blanking port is opened at the bottom of the transition box, and the blanking port is located above the atomization pool.

[0006] In this solution, the ladle is placed on the ladle transport vehicle. The ladle transport vehicle moves back and forth on the heavy rail. On the one hand, it reduces the movement of the crane and improves efficiency. On the other hand, it can move between the atomization pool and the steel slag well. The molten iron in the ladle flows down into the transition box and then flows down into the atomization pool from the blanking port at the lower end of the transition box. The water spray nozzles on the side of the atomization pool spray water mist onto the flowing-down molten iron, and iron powder is formed by the impact. Since the molten iron flows down from the transition box, the change in the liquid level height of the molten iron in the transition box is small, so the difference in the flowing-down speed is not large, making the produced iron powder relatively uniform.

[0007] As an optimization, two blanking ports are arranged and arranged front and back. Thus, the molten steel flows down through at least two blanking ports, and the water flow of the molten steel is smaller, improving the effect of water mist combination.

[0008] As an optimization, an adjustable baffle is bolted to the bottom of the transition box, and the bolt connection holes on the adjustable baffle are long holes extending left and right. One side of the adjustable baffle is in contact with the bottom surface of the blanking port. In this solution, the adjustable baffle is used to cover part of the blanking port. By adjusting the left and right positions of the adjustable baffle, the size of the blanking port can be adjusted, thereby adjusting the size of the molten steel flow.

[0009] As an optimization, a cover plate is installed on the atomization tank, and a through hole corresponding to the blanking port is opened on the cover plate. In this solution, the molten steel flows from the through hole into the atomization tank, and the cover plate prevents the sparks generated when the water mist reacts with the molten steel from splashing outwards.

[0010] As an optimization, the ladle transfer car travels on two heavy rails, and the transition box transfer car travels on two light rails. The two light rails are located between the two heavy rails. The heavy rails are used to guide the ladle transfer car to travel, and the light rails are used to guide the transition box transfer car to travel.

[0011] The beneficial effects of the present utility model are as follows: In a water atomized iron powder production device of the present utility model, the ladle is placed on the ladle transfer car, the molten iron in the ladle flows downward into the transition box, and then flows downward from the blanking port at the lower end of the transition box into the atomization tank. The water spray nozzles on the side of the atomization tank spray water mist onto the flowing downward molten steel, and iron powder is formed by impact. Since the molten iron flows downward from the transition box, the change in the liquid level height of the molten iron in the transition box is small, so the downward flow speeds are not very different, making the produced iron powder relatively uniform and improving the product quality. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic diagram of the transition box of the present utility model;

[0014] Figure 3 is a schematic diagram of the bottom of the adjustable baffle of the present utility model;

[0015] As shown in the figure:

[0016] 1. Ladle transfer car, 2. Ladle, 3. Heavy rail, 4. Transition box transfer car, 5. Transition box, 6. Light rail, 7. Atomization tank, 8. Water spray nozzle, 9. Cover plate, 10. Blanking port, 11. Adjustable baffle, 12. Through hole. Detailed Embodiments

[0017] To clearly illustrate the technical features of this solution, the following is an elaboration of this solution through specific embodiments.

[0018] As Figures 1 - 3 shown, a water atomized iron powder production device of the present utility model includes a ladle transfer car 1 and a transition box transfer car 4 that both move back and forth.

[0019] The ladle transfer car 1 travels on two heavy rails 3, and the heavy rails realize the guiding travel of the ladle transfer car. The transition box transfer car 4 travels on two light rails 6, and the light rails realize the guiding travel of the transition box transfer car. The two light rails 6 are located between the two heavy rails 3. Therefore, the transition box transfer car 4 can be arranged below the ladle transfer car 1.

[0020] A ladle placement space is left at the middle position of the ladle transfer car 1. The ladle 2 is placed on the ladle transfer car 1, and the support lugs on both sides of the ladle 2 are supported on both sides of the ladle transfer car 1. The ladle 2 is located at the middle position of the ladle transfer car 1.

[0021] An upper-opening transition box 5 is fixedly connected to the transition box transfer car 4. The transition box 5 is a rectangular box with an upper opening. An installation space is left at the middle position of the transition box transfer car 4. The transition box 5 is welded in the installation space. The lower end outlet of the ladle 2 is located above the transition box 5. Therefore, the molten iron in the ladle can flow into the transition box 5 through the lower end outlet.

[0022] A blanking port 10 is opened at the bottom of the transition box 5. The blanking port 10 is located above the atomization tank 7. Two blanking ports 10 are arranged and are arranged front and back. Thus, the molten steel flows downward through at least two blanking ports, and the water flow of the molten steel is small, improving the effect of water mist combination. In this embodiment, two blanking ports 10 are provided.

[0023] In order to adjust the size of the blanking port 10, as Figure 2 、 3 shown, an adjustable baffle 11 is bolted to the bottom of the transition box 5, and the bolt connection holes on the adjustable baffle 11 are long holes extending left and right. The adjustable baffle 11 is a long strip extending front and back. After loosening the bolts, the position of the adjustable baffle 11 can be adjusted, and after adjustment, the bolts are tightened.

[0024] One side of the adjustable baffle 11 is in contact with the bottom surface of the blanking port 10. The adjustable baffle is used to cover part of the blanking port. By adjusting the left and right positions of the adjustable baffle, the size of the blanking port can be adjusted, thereby adjusting the size of the molten steel flow.

[0025] A cover plate 9 is installed on the atomization tank 7, and a through hole 12 corresponding to the blanking port 10 is opened on the cover plate 9. The molten steel flows into the atomization tank through the through hole. The cover plate prevents the sparks generated when the water mist reacts with the molten steel from splashing outwards.

[0026] The usage method of the present utility model:

[0027] During operation, the ladle transfer vehicle 1 moves back and forth on the heavy rail to below the overhead crane. The overhead crane hoists and places the ladle on the ladle transfer vehicle 1. Then, the ladle transfer vehicle 1 moves above the transfer box transfer vehicle 4, opens the valve at the lower end outlet of the ladle, and the molten iron flows downward into the transfer box 5, and then flows downward from the discharge port 10 at the lower end of the transfer box 5 into the atomization tank 7. The water spray nozzles 8 on the side of the atomization tank 7 spray water mist onto the flowing molten iron, forming iron powder through impact. Since the molten iron flows downward from the transfer box 5, the change in the liquid level height of the molten iron in the transfer box 5 is small, and thus the difference in the downward flow rate is not large, making the produced iron powder relatively uniform.

[0028] After the molten steel flow inside the ladle is completed, the valve at the lower end outlet of the ladle is closed. The ladle transfer vehicle 1 moves above the steel slag well, opens the valve at the lower end outlet of the ladle, and discharges the steel slag in the ladle into the steel slag well.

[0029] Of course, the above description is not limited to the above examples. The technical features not described in the present utility model can be achieved by or adopted from the prior art, and will not be elaborated here. The above embodiments and drawings are only used to illustrate the technical solution of the present utility model and are not a limitation to the present utility model. The present utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model do not depart from the purpose of the present utility model and should also fall within the scope of protection of the claims of the present utility model.

Claims

1. A water atomized iron powder production device, characterized in that: The invention comprises a ladle conveyor vehicle (1) and a transition box conveyor vehicle (4) both of which move forward and backward. A transition box (5) with an upper opening is fixedly connected to the transition box conveyor vehicle (4). A ladle (2) is placed on the ladle conveyor vehicle (1) and a lower outlet of the ladle (2) is located above the transition box (5). A discharge port (10) is provided at the bottom of the transition box (5), and the discharge port (10) is located above the atomization pool (7).

2. The water atomized iron powder production device according to claim 1, characterized in that: The material discharge openings (10) are provided with two and are arranged front to back.

3. The water atomized iron powder production device according to claim 1, characterized in that: The bottom of the transition box (5) is bolted to an adjustable baffle (11), and the bolt connection hole on the adjustable baffle (11) is a long hole extending left and right, and one side of the adjustable baffle (11) is in contact with the bottom surface of the feed opening (10).

4. The water atomized iron powder production device according to claim 1, characterized in that: The atomizing pool (7) is provided with a cover plate (9), and the cover plate (9) is provided with a through hole (12) corresponding to the material discharge port (10).

5. The water atomized iron powder production device according to claim 1, characterized in that: The ladle conveyor vehicle (1) runs on two heavy rails (3), and the transition box conveyor vehicle (4) runs on two light rails (6), and the two light rails (6) are located between the two heavy rails (3).

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