Magnetic material hydrogen decrepitation reactor

Abstract

The utility model discloses a magnetic material hydrogen decrepitation reactor, which belongs to the field of backward wave tube manufacture and comprises a horizontal hydrogen decrepitation reaction unit, and the horizontal hydrogen decrepitation reaction unit comprises a hydrogen decrepitation reaction unit front cover, a hydrogen decrepitation reaction unit body and a hydrogen decrepitation reaction unit rear bottom. The hydrogen decrepitation reaction unit body and the hydrogen decrepitation reaction unit rear bottom are connected into a whole, a reaction cavity is defined by the hydrogen decrepitation reaction unit front cover, the hydrogen decrepitation reaction unit body and the hydrogen decrepitation reaction unit rear bottom, and the hydrogen decrepitation reaction unit rear bottom is connected with a rotating shaft. The hydrogen demolishing device is good in hydrogen demolishing effect, the particle size of hydrogen demolished products is uniform, and the caking phenomenon is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of backwave tube manufacturing, and more specifically, to a magnetic material hydrogen crushing reactor. Background Technology

[0002] The backward-wave tube, a type of traveling-wave tube, is used to generate microwaves in the terahertz range. It can be tuned over a wide frequency range and can be quickly tuned to radar frequencies, making it a promising candidate for radar jamming applications. The backward-wave tube focusing system uses a permanent magnet device made of permanent magnet material.

[0003] The existing manufacturing process for permanent magnet materials includes: batching, smelting, hydrogen breaking, grinding, forming, isostatic pressing, oil stripping, and sintering. The hydrogen breaking process utilizes the hydrogen absorption properties between rare earth metals. The NdFeB alloy block is placed in a hydrogen environment, where hydrogen enters the alloy along the neodymium-rich phase layer, causing it to expand, burst, and break apart. Cracking occurs along the neodymium-rich phase layer, thus transforming the NdFeB alloy from thin sheets into coarse powder. Therefore, the hydrogen breaking furnace in the hydrogen breaking process is a key piece of equipment for producing high-quality permanent magnet materials.

[0004] Existing hydrogen crushing furnaces for permanent magnet materials have furnace bodies made of high-temperature and high-pressure resistant stainless steel or alloys. Heating is achieved by installing heating elements (resistance wires or induction coils) around the inner wall of the furnace body. Cooling is achieved through internal cooling pipes within the furnace body. Temperature control is performed via thermocouples and a temperature control system. An inlet pipe on the furnace body supplies hydrogen gas. Neodymium iron boron alloy blocks are placed in the cavity inside the furnace body before hydrogen crushing begins. Before hydrogen induction, a vacuum is drawn to remove air. During hydrogen crushing, the heating elements provide heating to supply hydrogen, and the inlet pipe provides the hydrogen gas source. After hydrogen crushing, the cooling system provides a cold source to cool and release the hydrogen. Pressure is controlled during the hydrogen crushing process using pressure sensors and safety valves.

[0005] Existing hydrogen pulverization furnaces for permanent magnet materials do not have a dedicated reactor installed. The existing hydrogen pulverization furnaces for permanent magnet materials have poor pulverization efficiency, resulting in significant differences in particle size among the pulverized products and severe agglomeration. Utility Model Content

[0006] To address the aforementioned problems, this invention provides a magnetic material hydrogen crushing reactor, which aims to improve at least one of the problems mentioned in the background art.

[0007] A magnetic material hydrogen crushing reactor includes a horizontal hydrogen crushing reaction unit, which comprises a front cover, a body, and a rear bottom. The body and the rear bottom are connected as a single unit, forming a reaction chamber. A rotating shaft is connected to the rear bottom.

[0008] Optionally, the front cover of the hydrogen decomposition reaction unit is a removable front cover.

[0009] Optionally, the other end of the rotating shaft is connected to a power unit.

[0010] Optionally, the front cover of the hydrogen crushing reaction unit is connected to an anti-offset shaft.

[0011] Optionally, the bottom of the hydrogen crushing reaction unit is evenly distributed with pores, and the body of the hydrogen crushing reaction unit is evenly distributed with through-holes for hydrogen crushed product particles.

[0012] Optionally, the diameter of the through-pores in the hydrogen-crushed product particles is 20-50 μm, the diameter of the pores is 1-8 μm, the porosity of the through-pores in the hydrogen-crushed product particles is 3-10%, and the porosity of the pores is 3-10%.

[0013] Optionally, the horizontal hydrogen crushing reaction unit is square or circular.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The magnetic material hydrogen crushing reactor provided by this invention has a better hydrogen crushing effect, the hydrogen crushing product has a uniform particle size, and the agglomeration phenomenon is greatly improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the hydrogen crushing reactor of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear bottom structure of the square horizontal hydrogen crushing reaction unit of this utility model;

[0019] Figure 3 This is a schematic diagram of the rear bottom structure of the circular horizontal hydrogen crushing reaction unit of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the hydrogen crushing reaction unit body of the horizontal hydrogen crushing reaction unit of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 31. Horizontal hydrogen crushing reaction unit; 32. Front cover of hydrogen crushing reaction unit; 33. Body of hydrogen crushing reaction unit; 34. Rear bottom of hydrogen crushing reaction unit; 35. Rotating shaft; 36. Anti-deviation shaft; 37. Reaction chamber; 38. Pore; 39. Through-hole for hydrogen crushed product particles. Detailed Implementation

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.

[0024] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0027] Please refer to Figures 1-4 , Figure 1 This is a schematic diagram of the structure of the hydrogen crushing reactor of this utility model. Figure 2 This is a schematic diagram of the rear bottom structure of the square horizontal hydrogen crushing reaction unit of this utility model. Figure 3 This is a schematic diagram of the rear bottom structure of the circular horizontal hydrogen crushing reaction unit of this utility model. Figure 4 This is a schematic diagram of the structure of the hydrogen crushing reaction unit body of the horizontal hydrogen crushing reaction unit of this utility model.

[0028] A hydrogen crushing reactor includes a horizontal hydrogen crushing reaction unit 31. The horizontal hydrogen crushing reaction unit 31 includes a front cover 32, a body 33, and a rear bottom 34. The body 33 and the rear bottom 34 are integrated. The front cover 32, body 33, and rear bottom 34 form a reaction chamber 37. The front cover 32 is removable. A rotating shaft 35 is connected to the rear bottom 34, and the other end of the rotating shaft 35 is connected to a power device. Those skilled in the art should understand that the rotating shaft 35 can be driven by an electric motor, or by existing methods such as gears or cylinders. This is mature technology and is not particularly limited here, as long as the rotating shaft 35 can rotate and drive the horizontal hydrogen crushing reaction unit 31 connected to it to rotate. By setting up a horizontal hydrogen crushing reaction unit 31 and a rotating shaft 35, it is installed in a horizontal hydrogen crushing furnace. During hydrogen crushing, the rotation can drive the movement of the blocky material inside, thereby increasing the reaction contact area and improving the reaction effect.

[0029] In one or more specific embodiments of this utility model, the removable method of the front cover of the removable hydrogen crushing reaction unit can be a screw and nut threaded connection, or other removable, installable, and re-removable methods. No particular limitation is made here, as long as the removable and installable methods can be achieved.

[0030] In one or more specific embodiments of this utility model, the front cover 32 of the hydrogen crushing reaction unit is connected to an anti-offset shaft 36, which cooperates with a limiting circular groove provided on the inner wall of the horizontal hydrogen crushing furnace. The other end of the anti-offset shaft 36 is located in the limiting circular groove 17 to prevent the center from shifting during rotation.

[0031] In one or more specific embodiments of this utility model, the bottom 34 of the hydrogen crushing reaction unit is evenly distributed with pores 38, and the body 33 of the hydrogen crushing reaction unit is evenly distributed with through-holes 39 for the hydrogen-crushed product particles. Through the arrangement of the pores 38 and the through-holes 39, during hydrogen crushing, hydrogen gas permeates the lumps in an enveloping manner through the pores 38 and the through-holes 39. With the horizontal hydrogen crushing reaction unit 31 rotating, the reaction is more complete and the crushing is more uniform. Uncrushed lumps, being larger than the diameter of the through-holes 39, remain in the reaction chamber 37, while particles smaller than the diameter of the through-holes 39 after crushing leave the reaction chamber 37 and enter the collector located in the horizontal furnace for stabilization, reducing the amount of reactant material in the reaction chamber 37 and further improving reaction efficiency. During and after hydrogen crushing, because the material is in a rotating state, it is in motion and separation, reducing particle aggregation and greatly improving the agglomeration phenomenon.

[0032] In one or more specific embodiments of this utility model, the diameter of the through-hole 39 of the hydrogen-crushed product particles is 20-50 μm, the diameter of the pore 38 is 1-8 μm, the porosity of the through-hole 39 of the hydrogen-crushed product particles is 3-10%, and the porosity of the pore 38 is 3-10%. At this time, a better overall effect can be obtained.

[0033] In one or more specific embodiments of this utility model, the horizontal hydrogen crushing reaction unit 31 can be square or circular.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A magnetic material hydrogen crushing reactor, characterized in that, The magnetic material hydrogen crushing reactor includes a horizontal hydrogen crushing reaction unit (31), which includes a front cover (32), a body (33), and a rear bottom (34). The body (33) and the rear bottom (34) are connected as one unit. The front cover (32), body (33), and rear bottom (34) form a reaction chamber (37). A rotating shaft (35) is connected to the rear bottom (34).

2. The magnetic material hydrogen crushing reactor according to claim 1, characterized in that, The front cover (32) of the hydrogen crushing reaction unit is a removable front cover.

3. The magnetic material hydrogen crushing reactor according to claim 1, characterized in that, The other end of the rotating shaft (35) is connected to the power unit.

4. The magnetic material hydrogen crushing reactor according to claim 1, characterized in that, The front cover (32) of the hydrogen crushing reaction unit is connected to an anti-offset shaft (36).

5. The magnetic material hydrogen crushing reactor according to claim 1, characterized in that, The bottom (34) of the hydrogen crushing reaction unit is evenly distributed with pores (38), and the body (33) of the hydrogen crushing reaction unit is evenly distributed with through holes (39) for the hydrogen crushed product particles.

6. The magnetic material hydrogen crushing reactor according to claim 5, characterized in that, The diameter of the through-hole (39) of the hydrogen-crushed product particles is 20-50 μm, the diameter of the pore (38) is 1-8 μm, the porosity of the through-hole (39) of the hydrogen-crushed product particles is 3-10%, and the porosity of the pore (38) is 3-10%.

7. The magnetic material hydrogen crushing reactor according to any one of claims 1-6, characterized in that, The horizontal hydrogen pulverization reaction unit (31) is square or circular.

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