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Titanium hydride powder fluidization dehydrogenation device and dehydrogenation method

A titanium hydride powder and fluidization technology, applied in the field of metal powder preparation, can solve the problems of difficult industrialized production, long process flow, titanium powder sintering, etc., achieve short dehydrogenation time, strengthen heat and mass transfer, and improve sphericity Effect

Active Publication Date: 2020-08-04
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The loose powder dehydrogenation method often requires a high degree of vacuum. The titanium powder after dehydrogenation is prone to sintering, and the dehydrogenation speed needs to be strictly controlled. Therefore, the process is long and it is not easy to carry out large-scale industrial production.

Method used

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  • Titanium hydride powder fluidization dehydrogenation device and dehydrogenation method
  • Titanium hydride powder fluidization dehydrogenation device and dehydrogenation method
  • Titanium hydride powder fluidization dehydrogenation device and dehydrogenation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the present invention provides a device for fluidized dehydrogenation of titanium hydride powder, which includes a cyclone powder gas separation chamber 1, a fluidized reactor 2, a mica electromagnetic induction coil 3, an industrial heat gun 4 and a temperature control panel 5.

[0045]The fluidized reactor 2 is also provided with a first ventilation pipeline 6-01 and a second ventilation pipeline 6-02, and an industrial heat gun 4 is also arranged on the pipeline connected between the second ventilation pipeline 6-02 and the fluidized reactor 2 , the first ventilation pipe 6-01 is used to directly pass cold argon into the fluidized reactor 2, and the second ventilation pipe 6-02 is used to heat the incoming argon gas into the fluidized reactor 2 after being heated by the industrial heat gun 4 Inside.

[0046] A fluidized disc 7 is arranged at the lower part of the inner cavity of the fluidized reactor 2 .

[0047] A method for dehydrogena...

Embodiment 2

[0050] A device for fluidized dehydrogenation of titanium hydride powder, same as embodiment 1.

[0051] A method for dehydrogenating titanium hydride powder provided in this embodiment, the method uses the device for fluidized dehydrogenation of titanium hydride powder described in Example 1, and the steps are as follows:

[0052] Weighing 600g average particle diameter is 75 μ m, and the titanium hydride powder that purity is 99.8% is placed on the fluidized disc 7 in the fluidized reactor 2, and bed ratio is 0.2 (the ratio of particle layer thickness and fluidized reactor height is bed ratio).

[0053] After closing the device, argon gas was introduced from bottom to top through the first ventilation pipe 6-01. After 2 minutes, the exhaust gas was detected, and it was found that the exhaust gas was all argon, indicating that the fluidized dehydrogenation of titanium hydride powder had been exhausted. air in the device.

[0054] Close the first ventilation pipe 6-01, open ...

Embodiment 3

[0057] A device for fluidized dehydrogenation of titanium hydride powder, the schematic diagram of which is shown in figure 1 and figure 2 , the device specifically includes a cyclone powder-air separation chamber 1, a fluidized reactor 2, a mica electromagnetic induction coil 3, an industrial heat gun 4 and a temperature control panel 5;

[0058] The lower end of the cyclone powder-gas separation chamber 1 is connected with a fluidized reactor 2, the outer circumference of the cylinder wall of the fluidized reactor 2 is provided with a mica electromagnetic induction coil 3, and the lower part of the inner chamber of the fluidized reactor 2 is provided with a fluidized disk 7;

[0059] The fluidized reactor 2 communicates with argon through the first ventilation pipe 6-01 arranged below it;

[0060] The fluidized reactor 2 communicates with the argon gas through the second ventilation pipeline 6-02 arranged below it, and an industrial heat gun 4 is arranged on the second ven...

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Abstract

The invention discloses a titanium hydride powder fluidization dehydrogenation device and a dehydrogenation method, and belongs to the field of metal powder preparing. The titanium hydride powder fluidization dehydrogenation device comprises a cyclone powder air separation cavity, a fluidized reactor, an electromagnetic induction coil, heating equipment and a temperature control panel. The lower end of the cyclone powder air separation cavity is connected with the fluidized reactor, the fluidized reactor is provided with the electromagnetic induction coil in a surrounding manner, and a fluidization disc is arranged at the lower portion of an inner cavity of the fluidized reactor. The fluidized reactor communicates with argon through a first ventilation pipeline arranged below the fluidizedreactor. The fluidized reactor communicates with argon through a second ventilation pipeline arranged below the fluidized reactor. The second ventilation pipeline is provided with the heating equipment. The heating equipment and the electromagnetic induction coil are both connected with the temperature control panel. The device is the titanium hydride powder dehydrogenation device low in dehydrogenation energy consumption and short in time, and product titanium powder is good in sphericity degree; and according to the titanium hydride powder dehydrogenation technology conducted through the above device, the dehydrogenation time can be shortened, dehydrogenation energy consumption is reduced, and meanwhile the sphericity degree and liquidity of the product titanium powder are improved.

Description

technical field [0001] The invention belongs to the technical field of metal powder preparation and provides a device and a dehydrogenation method for fluidized dehydrogenation of titanium hydride powder. Background technique [0002] Titanium has the characteristics of low density, high specific strength, and corrosion resistance, and is widely used in aerospace, machinery manufacturing, national defense, military, and biomedical fields. Dehydrogenation of titanium hydride powder can produce low-cost, high-quality titanium powder. Titanium hydride powder dehydrogenation process and supporting equipment have been relatively mature and widely used. However, the current main method of producing titanium powder is hydrogenation dehydrogenation, which is simple in operation, low in cost, and can obtain fine-grained titanium powder. Further application, therefore, in order to obtain better quality titanium powder, further research is needed. [0003] As far as the current dehy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/30
CPCB22F9/30
Inventor 郑研张德良贾世召张景藩刘悦唐若兰
Owner NORTHEASTERN UNIV
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