Iron-cobalt-copper alloy powder reduction furnace

Abstract

The invention relates to the technical field of iron-cobalt-copper alloy powder reduction, in particular to an iron-cobalt-copper alloy powder reduction furnace which is characterized in that the iron-cobalt-copper alloy powder reduction furnace comprises a furnace body, a lifting box and a cover plate, a hydrogen inlet pipe is installed at the front end of the furnace body in an embedded mode, a feeding pipe communicated with the furnace body is installed at the side end of the furnace body, and a feeding screw is rotatably installed in the feeding pipe; the lifting box is installed at the side end of the furnace body, a threaded rod is rotatably installed in the lifting box, a movable block is installed on the threaded rod in a threaded mode, a fixed rod is installed at the side end of the movable block, the cover plate is installed at the tail end of the fixed rod, a rotating shaft is rotatably installed at the lower end of the cover plate, and a stirring rod is arranged on the rotating shaft; electric heating pipes which are distributed in an array manner are mounted at the lower end of the cover plate and are positioned on the outer side of the stirring rod. The device has the advantages that reduced iron-cobalt-copper alloy powder can be stirred to be fully reacted with hydrogen for reduction, and maintenance and overhaul work is convenient when a fault occurs due to the adoption of insertion type heating.

Description

Technical Field

[0001] The present invention relates to the technical field of reduction of iron-cobalt-copper alloy powder, and specifically to a reduction furnace for iron-cobalt-copper alloy powder. Background Art

[0002] A reduction furnace is a heating device used to reduce metal or ceramic materials from an oxidized state to an element or metal. It can be used in many industrial processes, such as metallurgy, chemistry, semiconductor manufacturing, glass manufacturing, and ceramic manufacturing. Its working principle is to place metal powder in the furnace and carry out the processes of reduction and sintering under certain temperature and controlled atmosphere. Generally, hydrogen is used as a reducing agent in the reduction furnace because hydrogen can react with metal powder at high temperature to reduce metal oxides, thus making it a pure metal or metal alloy. The water vapor generated during the reaction is removed, thus ensuring the balance of the reduction reaction.

[0003] Currently, during the use of the reduction furnace for iron-cobalt-copper alloy powder, its heating element is located inside the reduction furnace. After a failure occurs, it is not convenient for maintenance and repair. Moreover, during the reduction process, the position of the iron-cobalt-copper alloy powder remains unchanged and it cannot fully react with hydrogen, which not only affects the reduction efficiency of the iron-cobalt-copper alloy powder but also affects its reduction quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a reduction furnace for iron-cobalt-copper alloy powder, which has the advantages of being able to stir the reduced iron-cobalt-copper alloy powder to make it fully react with hydrogen for reduction, and using an insertable heating method, which is convenient for maintenance and repair work in case of a failure, and solves the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A reduction furnace for iron-cobalt-copper alloy powder, including a furnace body, a lifting box, and a cover plate. A hydrogen inlet pipe is embedded at the front end of the furnace body, and a valve is provided on the hydrogen inlet pipe. A feeding pipe communicating with the furnace body is installed at the side end of the furnace body, and a feeding screw is rotatably installed inside the feeding pipe;

[0006] The lifting box is installed at the side end of the furnace body. A threaded rod is rotatably installed inside the lifting box, and a movable block is threadedly installed on the threaded rod. A fixing rod is installed at the side end of the movable block;

[0007] The cover plate is installed at the end of the fixing rod. A rotating shaft is rotatably installed at the lower end of the cover plate, and a stirring rod is provided on the rotating shaft. Electric heating tubes are installed at the lower end of the cover plate in an array distribution, and the electric heating tubes are located outside the stirring rod.

[0008] Preferably, a discharging pipe is provided at the lower end of the furnace body, and a valve is provided on the discharging pipe.

[0009] Preferably, a first driving device is installed at the starting end of the feeding pipe, and the main shaft of the first driving device is connected to the axis of the feeding screw.

[0010] Preferably, a feeding pipe is installed at the upper end of the feeding pipe, a valve is arranged on the feeding pipe, and a feeding hopper is installed at the upper end of the feeding pipe.

[0011] Preferably, a second driving device is installed at the lower end of the lifting box, and the main shaft of the second driving device is connected to the axis of the threaded rod.

[0012] Preferably, a movable opening is formed at the side end of the lifting box, and the fixed rod extends out of the lifting box from the movable opening.

[0013] Preferably, a steam discharge pipe is embeddedly installed at the upper end of the cover plate, and a valve is arranged on the steam discharge pipe.

[0014] Preferably, a third driving device is arranged at the upper end of the cover plate, and the main shaft of the third driving device is connected to the axis of the rotating shaft.

[0015] Another object of the present invention is to provide a method for using the iron-cobalt-copper alloy powder reduction furnace as described above, and the using steps are as follows:

[0016] S1. Add the iron-cobalt-copper alloy powder into the feeding hopper, and the iron-cobalt-copper alloy powder can enter the feeding pipe through the feeding pipe;

[0017] S2. Make the feeding screw rotate by the operation of the first driving device, so that the iron-cobalt-copper alloy powder can be added into the furnace body;

[0018] S2. Make the threaded rod rotate by the second driving device, and under the cooperation of the movable block, make the cover plate descend and cover the upper end of the furnace body, so that the stirring rod and the electric heating tube are located in the furnace body;

[0019] S3. Heat the iron-cobalt-copper alloy powder by the electric heating tube, at the same time, fill hydrogen into the furnace body through the hydrogen inlet pipe, and make the rotating shaft rotate by the operation of the third driving device, and stir the iron-cobalt-copper alloy powder by the stirring rod, so that the iron-cobalt-copper alloy powder fully reacts with hydrogen;

[0020] S4. The steam generated during the reduction process of the iron-cobalt-copper alloy powder is discharged through the steam discharge pipe. When the reduction reaction of the iron-cobalt-copper alloy powder is completed, it is discharged from the discharging pipe.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. When reducing the iron-cobalt-copper alloy powder, the rotation of the threaded rod can be driven by the second driving device. With the cooperation of the movable block, the cover plate can be lowered to cover the upper end of the furnace body, and the stirring rod and the electric heating tube can be inserted into the furnace body. The inserted heating method is adopted, which is convenient for the maintenance and repair of the electric heating tube in case of failure.

[0023] 2. During the reduction reaction process of the iron-cobalt-copper alloy powder, the rotation of the rotating shaft is driven by the third driving device, and the iron-cobalt-copper alloy powder can be stirred by the stirring rod, so that the iron-cobalt-copper alloy powder fully reacts with hydrogen, which can improve the reduction efficiency and reduction quality of the iron-cobalt-copper alloy powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a front view structural schematic diagram of the present invention;

[0025] Figure 2 is a front view of the present invention;

[0026] Figure 3 is a partial sectional structural schematic diagram of the present invention.

[0027] The reference numerals and names in the drawings are as follows:

[0028] 101, furnace body; 102, blanking pipe; 103, hydrogen inlet pipe; 201, feeding pipe; 202, first driving device; 203, feed pipe; 204, feed hopper; 301, lifting box; 302, fixed rod; 303, second driving device; 304, movable opening; 305, movable block; 306, threaded rod; 401, cover plate; 402, steam discharge pipe; 403, third driving device; 404, electric heating tube; 405, stirring rod; 406, rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment

[0031] Please refer to Figures 1 to 3 , an embodiment provided by the present invention: A reduction furnace for iron-cobalt-copper alloy powder, comprising:

[0032] A furnace body 101, a lifting box 301, and a cover plate 401. A hydrogen inlet pipe 103 is embedded and installed at the front end of the furnace body 101. A valve is provided on the hydrogen inlet pipe 103. A feeding pipe 201 communicating with the furnace body 101 is installed at the side end of the furnace body 101. A feeding screw is rotatably installed in the feeding pipe 201;

[0033] The lifting box 301 is installed at the side end of the furnace body 101. A threaded rod 306 is rotatably installed in the lifting box 301. A movable block 305 is threadedly installed on the threaded rod 306. A fixing rod 302 is installed at the side end of the movable block 305;

[0034] The cover plate 401 is installed at the end of the fixing rod 302. A rotating shaft 406 is rotatably installed at the lower end of the cover plate 401. A stirring rod 405 is provided on the rotating shaft 406. Electric heating tubes 404 are installed at the lower end of the cover plate 401 in an array distribution. The electric heating tubes 404 are located outside the stirring rod 405.

[0035] In this embodiment, the iron-cobalt-copper alloy powder is added into the feeding hopper 204. The iron-cobalt-copper alloy powder can enter the feeding pipe 201 through the feeding tube 203. By the operation of the first driving device 202, the feeding screw can be rotated, so that the iron-cobalt-copper alloy powder can be added into the furnace body 101. By the operation of the second driving device 303, the threaded rod 306 can be rotated. With the cooperation of the movable block 305, the cover plate 401 can be lowered to cover the upper end of the furnace body 101, so that the stirring rod 405 and the electric heating tubes 404 are located inside the furnace body 101. By the operation of the electric heating tubes 404, the iron-cobalt-copper alloy powder can be heated. At the same time, hydrogen is filled into the furnace body 101 through the hydrogen inlet pipe 103. And by the operation of the third driving device 403, the rotating shaft 406 is rotated. The iron-cobalt-copper alloy powder can be stirred by the stirring rod 405, so that the iron-cobalt-copper alloy powder can fully react with hydrogen. The water vapor generated during the reduction process of the iron-cobalt-copper alloy powder is discharged through the water vapor discharge pipe 402. When the reduction reaction of the iron-cobalt-copper alloy powder is completed, it is discharged from the discharging pipe 102.

[0036] Further,

[0037] A discharging pipe 102 is provided at the lower end of the furnace body 101. A valve is provided on the discharging pipe 102.

[0038] The discharging pipe 102 is provided for discharging the materials in the furnace body 101.

[0039] Further,

[0040] A first driving device 202 is installed at the starting end of the feeding pipe 201. The main shaft of the first driving device 202 is connected to the axis of the feeding screw.

[0041] The operation of the first driving device 202 can rotate the feeding screw, and the iron-cobalt-copper alloy powder in the feeding pipe 201 can be fed into the furnace body 101 through the feeding screw.

[0042] Furthermore,

[0043] A feeding pipe 203 is installed at the upper end of the feeding pipe 201. A valve is provided on the feeding pipe 203, and a feeding hopper 204 is installed at the upper end of the feeding pipe 203.

[0044] Through the cooperation of the feeding hopper 204 and the feeding pipe 203, the iron-cobalt-copper alloy powder can be added into the feeding pipe 201.

[0045] Furthermore,

[0046] A second driving device 303 is installed at the lower end of the lifting box 301, and the main shaft of the second driving device 303 is connected to the axis of the threaded rod 306.

[0047] The operation of the second driving device 303 can rotate the threaded rod 306 clockwise or counterclockwise. When the threaded rod 306 rotates clockwise or counterclockwise, the movable block 305 can move up and down, so as to lift the cover plate 401.

[0048] Furthermore,

[0049] An activity port 304 is provided at the side end of the lifting box 301, and the fixed rod 302 extends out of the lifting box 301 from the activity port 304.

[0050] The setting of the activity port 304 can facilitate the up and down movement of the fixed rod 302.

[0051] Furthermore,

[0052] A steam discharge pipe 402 is embedded and installed at the upper end of the cover plate 401, and a valve is provided on the steam discharge pipe 402.

[0053] The setting of the steam discharge pipe 402 is used to discharge the steam generated by the reduction reaction.

[0054] Furthermore,

[0055] A third driving device 403 is provided at the upper end of the cover plate 401, and the main shaft of the third driving device 403 is connected to the axis of the rotating shaft 406.

[0056] The operation of the third driving device 403 can rotate the rotating shaft 406.

[0057] The first driving device 202, the second driving device 303, the third driving device 403 and the electric heating tube 404 in the present invention are all well-known devices. Their working principles and circuit connections are well-known to technicians in the art and all belong to conventional means or common general knowledge, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0058] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A reduction furnace for iron-cobalt-copper alloy powder, comprising a furnace body (101), a lifting box (301) and a cover plate (401), characterized in that: A hydrogen inlet pipe (103) is embedded and installed at the front end of the furnace body (101). A valve is provided on the hydrogen inlet pipe (103). A feeding pipe (201) communicating with the furnace body (101) is installed at the side end of the furnace body (101). A feeding screw is rotatably installed in the feeding pipe (201). The lifting box (301) is installed at the side end of the furnace body (101). A threaded rod (306) is rotatably installed in the lifting box (301). A movable block (305) is threadedly installed on the threaded rod (306). A fixing rod (302) is installed at the side end of the movable block (305). The cover plate (401) is installed at the end of the fixing rod (302). A rotating shaft (406) is rotatably installed at the lower end of the cover plate (401). A stirring rod (405) is provided on the rotating shaft (406). Electric heating tubes (404) are installed at the lower end of the cover plate (401) in an array distribution. The electric heating tubes (404) are located outside the stirring rod (405).

2. The reducing furnace for iron-cobalt-copper alloy powder according to claim 1, wherein: A discharging pipe (102) is provided at the lower end of the furnace body (101). A valve is provided on the discharging pipe (102).

3. A reduction furnace for iron-cobalt-copper alloy powder according to claim 1, characterized in that: A first driving device (202) is installed at the starting end of the feeding pipe (201). The main shaft of the first driving device (202) is connected to the axis of the feeding screw.

4. A reduction furnace for iron-cobalt-copper alloy powder according to claim 1, characterized in that: An inlet pipe (203) is installed at the upper end of the feeding pipe (201). A valve is provided on the inlet pipe (203). And a feeding hopper (204) is installed at the upper end of the inlet pipe (203).

5. The reduction furnace for iron-cobalt-copper alloy powder according to claim 1, wherein: A second driving device (303) is installed at the lower end of the lifting box (301). The main shaft of the second driving device (303) is connected to the axis of the threaded rod (306).

6. The reduction furnace for iron-cobalt-copper alloy powder according to claim 1, wherein: An activity port (304) is formed at the side end of the lifting box (301). The fixing rod (302) extends out of the lifting box (301) from the activity port (304).

7. A reduction furnace for iron-cobalt-copper alloy powder according to claim 1, characterized in that: A steam discharge pipe (402) is embedded and installed at the upper end of the cover plate (401). A valve is provided on the steam discharge pipe (402).

8. A reduction furnace for iron-cobalt-copper alloy powder according to claim 1, characterized in that: A third driving device (403) is provided at the upper end of the cover plate (401). The main shaft of the third driving device (403) is connected to the axis of the rotating shaft (406).

9. The method of using the reduction furnace for iron-cobalt-copper alloy powder according to any one of claims 1-8, characterized in that The using steps are as follows: S1. Add iron-cobalt-copper alloy powder into the feeding hopper (204). The iron-cobalt-copper alloy powder can enter the feeding pipe (201) through the inlet pipe (203). S2. Operate the first driving device (202) to rotate the feeding screw, so that the iron-cobalt-copper alloy powder can be added into the furnace body (101). S2. Operate the second driving device (303) to rotate the threaded rod (306). With the cooperation of the movable block (305), the cover plate (401) descends to cover the upper end of the furnace body (101), so that the stirring rod (405) and the electric heating tubes (404) are located inside the furnace body (101). S3. Heat the iron-cobalt-copper alloy powder through the electric heating tube (404). At the same time, fill the furnace body (101) with hydrogen through the hydrogen inlet pipe (103), and make the rotating shaft (406) rotate by operating the third driving device (403). Stir the iron-cobalt-copper alloy powder through the stirring rod (405) to make the iron-cobalt-copper alloy powder fully react with hydrogen; S4. The water vapor generated during the reduction process of the iron-cobalt-copper alloy powder is discharged through the water vapor discharge pipe (402). After the reduction reaction of the iron-cobalt-copper alloy powder is completed, discharge it from the blanking pipe (102).

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