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Treatment device for neodymium-iron-boron ultrafine powder waste material

A processing device and ultra-fine powder technology, which is applied in the field of NdFeB processing, can solve the problems of large contact area, high processing cost, and bursting, and achieve the effect of low processing cost, smooth discharge process, and not easy to block

Active Publication Date: 2018-06-08
江苏启诚磁业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current technology, during the production and processing of NdFeB products, some powder particles with smaller particle sizes will be produced. In the industry, powders with such particle sizes smaller than the set value are called NdFeB ultrafine powders, and these Due to its small particle size, the NdFeB ultrafine powder has a large contact area with the air when it is scrapped. When the NdFeB ultrafine powder is exposed to the air, it can spontaneously ignite or even burst. Therefore, the prior art The ultra-fine powder waste produced during the processing of this NdFeB product often needs to be bottled and filled with protective gas for storage, and finally undergoes a unified oxidation treatment through a special treatment process
However, in the prior art, the process for processing NdFeB ultrafine powder is not only complicated in steps, but also low in efficiency and high in processing costs.

Method used

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  • Treatment device for neodymium-iron-boron ultrafine powder waste material
  • Treatment device for neodymium-iron-boron ultrafine powder waste material
  • Treatment device for neodymium-iron-boron ultrafine powder waste material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]The support 8 has a cylindrical structure, the upper end surface of the support 8 is fixed and sealed with the inner surface of the furnace body 1, the blades 9 are rotatably fitted in the support 8, and the feeding port 5 is connected to the inner cavity of the support 8 by the inner surface of the support 8. Material cavity 3 communicates.

[0029] Further, a second bracket 23 is provided in the feeding chamber 3, and an annular pressure equalizing chamber 24 is formed between the second bracket 23 and the inner surface of the furnace. The second air inlet 7 on the furnace body 1 is connected to the equalizing The pressure chamber 24 is connected, and several air holes 23.1 communicating with the feeding chamber are arranged on the pressure equalization chamber, and all the air holes 23.1 are distributed along the circumferential direction of the pressure equalization chamber at intervals.

Embodiment 2

[0031] The motor 10 is a direct drive motor, the stator 10.1 of the motor 10 is fixedly connected with the support 8, the rotor 10.2 of the motor 10 is in rotation with the stator 10.1, and one end of the blade 9 is fixedly connected with the rotor 10.2.

[0032] Specifically, an annular mounting groove is radially recessed on the inner side wall of the bracket 8, and the stator 10.1 and the rotor 10.2 of the motor 10 are embedded in the mounting groove, and the rotor 10.2 is rotatably engaged with the mounting groove. In order to prevent the NdFeB superfine powder waste from falling into the motor, a sealing ring is provided between the rotor 10.2 and the inner wall of the installation groove.

Embodiment 3

[0034] The blades 9 include an upper blade 9.1 and a lower blade 9.2 arranged vertically from top to bottom. From top to bottom, it is divided into a medium pressure zone 11, a low pressure zone 12 and a high pressure zone 13, that is, the area between the upper blade 9.1 and the feeding port 5 forms a medium pressure zone 11, and the upper blade 9.1 and the lower blade 9.2 form a low pressure zone 12 , the area below the lower blades 9.2 forms a high-pressure area communicated with the feed chamber 3 . The air pressures of the low-pressure zone 12, the medium-pressure zone 11 and the high-pressure zone 13 increase sequentially.

[0035] Specifically, the upper blade 9.1 rotates so that the air below the upper blade 9.1 is squeezed to the top of the upper blade 9.1, so a medium-pressure zone is formed above the upper blade 9.1, and a low-pressure zone 12 is formed between the upper blade 9.1 and the lower blade 9.2; The blade 9.2 rotates so that the air above the lower blade ...

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Abstract

The invention discloses a treatment device for a neodymium-iron-boron ultrafine powder waste material. The treatment device comprises a furnace body. The furnace body is internally provided with a combustion chamber and a material supply chamber, wherein the material supply chamber is formed above the combustion chamber. The material supply chamber communicates with the combustion chamber throughmultiple discharging holes. The furnace body is provided with a feeding opening. The feeding opening communicates with the top of the material supply chamber. The furnace body is provided with first air inlets and a second gas inlet, wherein the first air inlets are used for supplying air to the combustion chamber, and the second gas inlet is used for conveying flame-retardant gas into the material supply chamber so that the material supply chamber can be internally filled with the flame-retardant gas. The material supply chamber is internally provided with a support. One end of the support isfixed to the furnace body. The support is provided with vanes and a motor, wherein the motor is used for driving the vanes to rotate. The vanes are located below the feeding opening in the vertical direction. The treatment device for the neodymium-iron-boron ultrafine powder waste material is high in efficiency and low in cost and can be popularized by production enterprises conveniently.

Description

technical field [0001] The invention relates to the technical field of NdFeB processing, in particular to a processing device for NdFeB superfine powder waste. Background technique [0002] In the current technology, during the production and processing of NdFeB products, some powder particles with smaller particle sizes will be produced. In the industry, powders with such particle sizes smaller than the set value are called NdFeB ultrafine powders, and these Due to its small particle size, the NdFeB ultrafine powder has a large contact area with the air when it is scrapped. When the NdFeB ultrafine powder is exposed to the air, it can spontaneously ignite or even burst. Therefore, the prior art The ultra-fine powder waste produced during the processing of this NdFeB product often needs to be bottled and filled with protective gas for storage, and finally undergoes a unified oxidation treatment through a special treatment process. However, in the prior art, the process for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/02
CPCC22B1/02
Inventor 郑旦
Owner 江苏启诚磁业有限公司
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