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Heat exchanger special for production of neodymium iron boron magnetic powder

A heat exchanger, neodymium-iron-boron technology, applied in the field of special heat exchangers produced by neodymium-iron-boron magnetic powder, can solve the problems of easy-to-freeze transportation pipelines, waste of water resources and energy, and high production costs, so as to save water resources, The effect of reducing waste of resources and reducing energy consumption

Inactive Publication Date: 2014-06-04
湖南京湘磁业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The return water generated in the production process of NdFeB magnetic powder contains a lot of heat energy. Using a common heat exchanger to continuously input cooling water and discharge high-temperature return water will waste a lot of water resources and energy, making the production cost too high
Inert gas is needed in the production process of NdFeB magnetic powder, and the inert gas is most convenient to transport when it is in liquid state, but it is required to exist in gaseous state in the production process, and a large amount of heat energy is required to vaporize liquid inert gas. It is easy to freeze the pipeline, so it needs to provide heat

Method used

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  • Heat exchanger special for production of neodymium iron boron magnetic powder
  • Heat exchanger special for production of neodymium iron boron magnetic powder
  • Heat exchanger special for production of neodymium iron boron magnetic powder

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Effect test

Embodiment 1

[0016] Embodiment 1, the present invention comprises box body 1, partition plate 5, cover plate 2, vent valve 6, is characterized in that: three or more partition boards 5 are arranged in box body 1, can make return water flow zigzag, increase The contact time and contact area between the return water and the refrigeration pipe 3 make the return water cool down faster. The cabinet 1 is provided with an outlet pipe 7, and the cooled water enters the cooling water circulation system produced by NdFeB magnetic powder through the outlet pipe. The refrigeration pipe 3 It is installed in the tank 1 and is fully in contact with the return water in the tank 1. The cooling pipe 3 is filled with liquid inert gas to cool the return water and absorb the heat energy required for gasification. After gasification, it can be injected with neodymium iron The multi-stage quenching device produced by boron magnetic powder, the top of the box body 1 is provided with a cover plate 2, and the cover ...

Embodiment 2

[0017] Embodiment 2, the ventilation valve 6 of the present invention is arranged at the center of the cover plate 2 and communicates with the inside of the box body 1, and can communicate the temperature difference between the inside and outside of the box to balance the air temperature. refer to Figure 1 to Figure 3 , all the other are with embodiment 1.

Embodiment 3

[0018] Embodiment 3, the input pipe 31 and the output pipe 32 of the refrigeration pipe 3 of the present invention are arranged on the cover plate 2 close to the inner walls of both sides of the box body 1, and the outer wall of the refrigeration pipe 3 is also provided with heat transfer fins, which can speed up the heat transfer speed. refer to Figure 1 to Figure 3 , and the rest are the same as the above-mentioned embodiment.

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Abstract

The invention relates to a heat exchanger special for production of neodymium iron boron magnetic powder, belongs to a special heat exchanger and mainly aims to solve the technical problems that the existing heat exchanger fails to meet the production requirements of neodymium iron boron magnetic powder, cannot effectively utilize heat of return water and cannot cyclically process cooling water. According to the technical scheme, the heat exchanger is characterized in that three or more partitions (5) are disposed in a box (1), the box (1) is provided with a water outgoing tube (7), a refrigerating tube (3) is disposed in the box (1) and delivers liquid inert gas, the top of the box (1) is provided with a cover plate (2), the cover plate is provided with a vent valve (6), and a return water tube (4) is communicated with the inside of the box (1). The heat exchanger is mainly applicable to processing gaseous and liquid inert gases, high-temperature return water and cooling water in the production process of the neodymium iron boron magnetic powder.

Description

technical field [0001] The invention relates to a special heat exchanger, in particular to a special heat exchanger for the production of NdFeB magnetic powder. Background technique [0002] At present, common heat exchangers on the market require continuous input of special refrigerants and coolants to neutralize heat energy. The return water generated in the production process of NdFeB magnetic powder contains a lot of heat energy. Using a common heat exchanger to continuously input cooling water and discharge high-temperature return water will waste a lot of water resources and energy, making the production cost too high. Inert gas is needed in the production process of NdFeB magnetic powder, and the inert gas is most convenient to transport when it is in liquid state, but it is required to exist in gaseous state in the production process, and a large amount of heat energy is required to vaporize liquid inert gas. It is easy to freeze the pipeline, so it needs to provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D1/047
Inventor 贺耀湘鲍宇飞
Owner 湖南京湘磁业有限公司
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