Samarium iron nitrogen powder discharging device

Abstract

The utility model discloses a samarium-iron-nitrogen powder discharging device, which relates to the field of discharging devices and comprises a furnace body, the furnace body is provided with a feed port and a discharge port, the feed port and the discharge port are arranged on two opposite sides of the furnace body, a cavity is formed in the furnace body, and the cavity is respectively communicated with the feed port and the discharge port; a nitrogen conveying device is arranged in the cavity, can be connected with an external nitrogen conveying device and is used for conveying samarium-iron-nitrogen powder of the furnace body to the outside of the furnace body; according to the samarium-iron-nitrogen powder discharging device, the nitrogen conveying device is arranged in the furnace body, so that samarium-iron-nitrogen powder is always in a nitrogen atmosphere in the discharging process, the samarium-iron-nitrogen powder is prevented from being in contact with air and being oxidized, the purity and performance of the samarium-iron-nitrogen powder are guaranteed, meanwhile, the samarium-iron-nitrogen powder in the furnace body can be completely conveyed to the outside of the furnace body, and the discharging efficiency is improved. The waste of the samarium-iron-nitrogen powder is avoided.

Description

Technical Field

[0001] The utility model relates to the field of discharging devices, in particular to a samarium iron nitrogen powder discharging device. Background Art

[0002] SmFeN magnetic powder is a high-performance rare earth permanent magnet material, and its application range covers information communication, industrial production, home electronics, automobiles and other fields. There are two main problems in the traditional discharging process of SmFeN powder. First, due to the long furnace body, after the SmFeN powder is discharged, SmFeN powder is likely to remain in the furnace body, which not only leads to the waste of SmFeN powder, but also increases the difficulty of cleaning the furnace body; secondly, using conventional discharging methods, on the one hand, SmFeN powder is easy to contact with air and thus be oxidized, which will affect the purity and performance of SmFeN powder, and ultimately affect the quality of the product; on the other hand, the discharging efficiency is low, which is easy to cause powder residue in the furnace body, resulting in waste of SmFeN powder.

[0003] Based on this, this application is filed. Utility Model Content

[0004] The utility model aims to provide a samarium iron nitrogen powder discharging device. The samarium iron nitrogen powder discharging device is provided with a nitrogen conveying device in a furnace body, so that the samarium iron nitrogen powder is always in a nitrogen atmosphere during the discharging process, thereby preventing the samarium iron nitrogen powder from contacting with air and being oxidized, thereby ensuring the purity and performance of the samarium iron nitrogen powder. At the same time, the samarium iron nitrogen powder in the furnace body can be completely conveyed to the outside of the furnace body, thereby avoiding the waste of the samarium iron nitrogen powder.

[0005] The above-mentioned optimized structure of the utility model is realized by the following technical scheme: a samarium iron nitrogen powder discharging device, comprising a furnace body, the furnace body having a feed port and a discharge port, the feed port and the discharge port are arranged on opposite sides of the furnace body, a cavity is formed in the furnace body, and the cavity is respectively connected with the feed port and the discharge port;

[0006] A nitrogen delivery device is provided in the cavity, and the nitrogen delivery device can be connected to an external nitrogen delivery device to deliver the samarium iron nitrogen powder of the furnace body to the outside of the furnace body.

[0007] In some embodiments, the nitrogen delivery device includes an air inlet, which is disposed on a side of the cavity close to the feed port, and the air inlet is connected to an external nitrogen delivery device;

[0008] The air inlet portion is connected to a conveying portion, and the conveying portion extends along the length direction of the cavity;

[0009] The conveying part is connected to an air outlet part at a side away from the air inlet part;

[0010] The diameters of the air inlet and the air outlet are both larger than the diameter of the conveying portion;

[0011] The conveying portion is provided with at least one opening.

[0012] In some embodiments, the air inlet and the air outlet are both connected to the conveying portion by a rotary seal.

[0013] In some embodiments, the air inlet and the air outlet are both provided with a fixing groove on the side connected to the conveying part, and a bearing is installed inside the fixing groove, and both ends of the conveying part are rotatably connected to the air inlet and the air outlet through the bearing.

[0014] In some embodiments, an interference fit is formed between the bearing and the fixing groove of the air inlet portion, the fixing groove of the air outlet portion, and both sides of the conveying portion.

[0015] In some embodiments, the inner wall of the fixing groove and the outer walls on both sides of the conveying portion are provided with sealing grooves that match each other, and a sealing ring is provided in the sealing groove.

[0016] In some embodiments, a predetermined gap is provided between the feed port and the air inlet portion, and between the discharge port and the air outlet portion.

[0017] In some embodiments, there are two openings, and the two openings are centrally symmetrically distributed relative to a center line of the conveying portion.

[0018] In some embodiments, the nitrogen delivery device and the inner walls on both sides of the cavity are provided with fixing devices, and the fixing devices include at least three fixing plates, and a plurality of the fixing plates are arranged in a ring shape on the inner wall of the cavity.

[0019] In summary, the utility model has the following beneficial effects:

[0020] The samarium iron nitrogen powder discharging device is provided with a nitrogen conveying device in the furnace body. The flow of nitrogen in the nitrogen conveying device drives the samarium iron nitrogen powder to flow out, so that the samarium iron nitrogen powder is always in a nitrogen atmosphere during the discharging process, avoiding the samarium iron nitrogen powder from contacting with the air and being oxidized, thereby ensuring the purity and performance of the samarium iron nitrogen powder; by providing an opening and adopting a rotating sealing method, etc., the nitrogen can form a uniform circulating flow field in the furnace body, thereby better carrying and conveying the samarium iron nitrogen powder, improving the discharging efficiency, reducing the powder residue in the furnace body, and avoiding the waste of samarium iron nitrogen powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the utility model.

[0022] In the figure: 1. furnace body; 11. feed port; 12. discharge port; 13. cavity; 2. nitrogen delivery device; 21. air inlet; 22. delivery part; 23. air outlet; 24. opening; 3. bearing; 4. fixing device. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] refer to Figure 1 A samarium iron nitrogen powder discharging device includes a furnace body 1, the furnace body 1 has a feed port 11 and a discharge port 12, the feed port 11 and the discharge port 12 are arranged on opposite sides of the furnace body 1, a cavity 13 is formed in the furnace body 1, the cavity 13 is respectively connected with the feed port 11 and the discharge port 12, the samarium iron nitrogen powder enters the cavity 13 from the feed port 11 and flows out from the discharge port 12.

[0025] A nitrogen delivery device 2 is provided in the cavity 13, and a fixing device 4 is provided on the inner walls of both sides of the nitrogen delivery device 2 and the cavity 13. The fixing device 4 includes at least three fixing plates, and the multiple fixing plates are annularly arranged on the inner wall of the cavity 13; it is used to support the nitrogen delivery device 2 to ensure the stability of the nitrogen delivery device 2. At the same time, a gap is left between the multiple fixing plates and the nitrogen delivery device 2, which can provide a flow channel for the samarium iron nitrogen powder in the cavity 13, ensure the fluidity of the samarium iron nitrogen powder in the cavity 13, and avoid the accumulation of the samarium iron nitrogen powder at the fixing device 4.

[0026] The nitrogen delivery device 2 includes an air inlet 21, a delivery portion 22, an air outlet 23 and an opening 24. The air inlet 21 is arranged on the side of the cavity 13 close to the feed port 11, and the air outlet 23 is arranged on the side close to the discharge port 12. The delivery portion 22 is connected between the air inlet 21 and the air outlet 23, and the delivery portion 22 extends along the length direction of the cavity 13; the diameters of the air inlet 21 and the air outlet 23 are larger than the diameter of the delivery portion 22, and at least one opening 24 is provided on the delivery portion 22. The air inlet 21 is connected to an external nitrogen delivery device, and the air outlet 23 is connected to an external material receiving device. The external material receiving device can separate the samarium iron nitrogen powder from the nitrogen. This is a prior art and will not be repeated here; nitrogen is delivered to the air inlet 21 by the external nitrogen delivery device, and the nitrogen flows through the delivery portion 22 and then flows to the air outlet 23, by Since the diameters of the air inlet 21 and the air outlet 23 are larger than the diameter of the conveying portion 22, during the flow of nitrogen, the internal air pressure of the conveying portion 22 is lower than the air pressures of the air inlet 21, the air outlet 23 and the cavity 13, and there is a pressure difference between the cavity 13 and the conveying portion 22, so that the samarium iron nitrogen powder enters the conveying portion 22 through the opening 24 and flows out from the air outlet 23 driven by the flow of nitrogen, thereby conveying the samarium iron nitrogen powder in the furnace body 1 to the outside of the furnace body 1. During the discharging process, the samarium iron nitrogen powder is always in a nitrogen atmosphere, thereby preventing the samarium iron nitrogen powder from contacting with the air and being oxidized, thereby ensuring the purity and performance of the samarium iron nitrogen powder; at the same time, through the pressure difference between the cavity 13 and the conveying portion 22, the samarium iron nitrogen powder in the furnace body 1 is completely conveyed to the outside of the furnace body 1, thereby avoiding the waste of samarium iron nitrogen powder.

[0027] In some embodiments, the air inlet 21 and the air outlet 23 are connected to the conveying part 22 by a rotating seal. The air inlet 21 and the air outlet 23 are provided with a fixed groove on the side connected to the conveying part 22, and a bearing 3 is installed in the fixed groove. The two ends of the conveying part 22 are rotatably connected to the air inlet 21 and the air outlet 23 through the bearing 3. The outer ring of the bearing 3 forms an interference fit with the fixed groove of the air inlet 21 and the fixed groove of the air outlet 23, and the inner ring of the bearing 3 forms an interference fit with the two sides of the conveying part 22, so that the conveying part 22 can rotate between the air inlet 21 and the air outlet 23, so that the opening 24 rotates, so that the samarium iron nitrogen powder in different directions can enter the conveying part 22 from the opening 24, thereby improving the discharge completion of the samarium iron nitrogen powder; the inner wall of the fixed groove of the bearing 3 and the outer walls on both sides of the conveying part 22 are provided with sealing grooves matching each other, and the sealing ring is provided in the sealing groove, which can improve the sealing performance of the conveying part 22 when it rotates.

[0028] In some embodiments, predetermined gaps are provided between the feed port 11 and the air inlet 21 , and between the discharge port 12 and the air outlet 23 , to prevent the samarium iron nitrogen powder from accumulating in the nitrogen delivery device 2 when the samarium iron nitrogen powder enters the furnace body 1 , thereby ensuring the capacity of the furnace body 1 .

[0029] In some embodiments, there may be two openings 24, and the two openings 24 are centrally symmetrical on the conveying portion 22, which can increase the flow channel for the samarium iron nitrogen powder to enter the conveying portion 22, and allow the nitrogen to circulate in the furnace body 1, thereby better carrying and conveying the samarium iron nitrogen powder, further improving the discharge completion of the samarium iron nitrogen powder.

[0030] The specific working principle is as follows:

[0031] When it is necessary to take the material, the external nitrogen delivery device is inserted into the feed port 11 and plugged and fixed with the air inlet 21, and the external material receiving device is inserted into the discharge port 12 and plugged and fixed with the air outlet 23. The nitrogen delivered by the external nitrogen delivery device flows from the feed port 11 to the conveying part 22, the air outlet 23 and the external material receiving device in sequence. During the flow of nitrogen, the internal air pressure of the conveying part 22 is lower than the air pressure of the air inlet 21, the air outlet 23 and the cavity 13. There is a pressure difference between the cavity 13 and the conveying part 22, so that the samarium iron nitrogen powder enters the conveying part through the opening 24. 22, and driven by the flow of nitrogen, it flows from the air outlet 23 to the external receiving device to complete the discharging. During the discharging process, the samarium iron nitrogen powder is always in a nitrogen atmosphere, thereby avoiding the samarium iron nitrogen powder from contacting with the air and oxidizing, thereby ensuring the purity and performance of the samarium iron nitrogen powder; in this process, due to the pressure difference between the cavity 13 and the conveying part 22, the conveying part 22 is subjected to a corresponding thrust through the opening 24, thereby causing the conveying part 22 to rotate, so that the samarium iron nitrogen powder at different positions flows from the opening 24 to the conveying part 22, thereby improving the completeness of the discharging.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A samarium iron nitrogen powder discharging device, characterized in that: The furnace body (1) comprises a furnace body (1), the furnace body (1) having a feed inlet (11) and a discharge outlet (12), the feed inlet (11) and the discharge outlet (12) being arranged on opposite sides of the furnace body (1), a cavity (13) being formed in the furnace body (1), the cavity (13) being respectively connected to the feed inlet (11) and the discharge outlet (12); A nitrogen delivery device (2) is provided in the cavity (13), and the nitrogen delivery device (2) can be connected to an external nitrogen delivery device and is used to deliver the samarium iron nitrogen powder in the furnace body (1) to the outside of the furnace body (1).

2. The samarium iron nitrogen powder discharging device according to claim 1, characterized in that: The nitrogen delivery device (2) comprises an air inlet (21), the air inlet (21) being arranged on a side of the cavity (13) close to the feed port (11), and the air inlet (21) being connected to an external nitrogen delivery device; The air inlet portion (21) is connected to a conveying portion (22), and the conveying portion (22) extends along the length direction of the cavity (13); The conveying portion (22) is connected to a gas outlet portion (23) on a side away from the gas inlet portion (21); The diameters of the air inlet portion (21) and the air outlet portion (23) are both larger than the diameter of the conveying portion (22); The conveying portion (22) is provided with at least one opening (24).

3. The samarium iron nitrogen powder discharging device according to claim 2, characterized in that: The air inlet (21) and the air outlet (23) are both connected to the conveying portion (22) by means of a rotary seal.

4. The samarium iron nitrogen powder discharging device according to claim 3, characterized in that: The air inlet portion (21) and the air outlet portion (23) are both provided with a fixing groove on the side connected to the conveying portion (22), a bearing (3) is installed inside the fixing groove, and the two ends of the conveying portion (22) are rotatably connected to the air inlet portion (21) and the air outlet portion (23) via the bearing (3).

5. The samarium iron nitrogen powder discharging device according to claim 4, characterized in that: An interference fit is formed between the bearing (3) and the fixing groove of the air inlet portion (21), the fixing groove of the air outlet portion (23), and both sides of the conveying portion (22).

6. The samarium iron nitrogen powder discharging device according to claim 4, characterized in that: The inner wall of the fixing groove and the outer walls on both sides of the conveying portion (22) are both provided with sealing grooves that match each other, and a sealing ring is provided in the sealing groove.

7. The samarium iron nitrogen powder discharging device according to claim 2, characterized in that: A predetermined gap is provided between the feed port (11) and the air inlet portion (21), and between the discharge port (12) and the air outlet portion (23).

8. The samarium iron nitrogen powder discharging device according to claim 2, characterized in that: There are two openings (24), and the two openings (24) are centrally symmetrically distributed relative to the center line of the conveying portion (22).

9. The samarium iron nitrogen powder discharging device according to claim 1, characterized in that: The nitrogen delivery device (2) and the inner walls on both sides of the cavity (13) are provided with fixing devices (4), and the fixing devices (4) include at least three fixing plates, and the plurality of fixing plates are arranged in a ring shape on the inner wall of the cavity (13).

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