System for preparing powder with gas phase and liquid phase

A powder, gas-liquid technology, applied in the field of gas-liquid dual-phase preparation of powder systems, can solve the problems of inability to manufacture metal powder, metal composite powder, lack of chemical activity, and high impurity content, and achieves high activity, high Full and fast mixing, large surface area effect

Inactive Publication Date: 2016-10-12
深圳市航盛新材料技术有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, there are two methods of powder production: first, solid phase powder production, such as grinding; however, the powder produced by ball milling has a wide particle size distribution and does not have chemical activi...

Method used

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  • System for preparing powder with gas phase and liquid phase
  • System for preparing powder with gas phase and liquid phase

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Embodiment Construction

[0029] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] refer to figure 1 , is a schematic diagram of the system structure of the gas-liquid two-phase preparation of powder in the embodiment of the present invention.

[0031] In the embodiment of the present invention, a gas-liquid two-phase powder preparation system is proposed, including a raw material heat treatment device 1, a mixing device 2 and a spraying device 3;

[0032] The above-mentioned mixing device 2 includes a mixing chamber 20, a first Laval nozzle 21 and a second Laval nozzle 22; the top of the above-mentioned mixing chamber 20 runs through the above-mentioned first Laval nozzle 21, and the bottom of the above-mentioned mixing chamber 20 communicates with the above-mentioned The second Laval nozzle 22 ; the end of the second Laval nozzle 22 leads into the spraying device 3 .

[0033] In this embo...

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PUM

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Abstract

The invention provides a system for preparing powder with a gas phase and a liquid phase. The system comprises a raw material heat treatment device, a mixing device and a spraying device; the mixing device comprises a mixing chamber, a first Laval spray pipe and a second Laval spray pipe; the first Laval spray pipe is arranged at the top of the mixing chamber in a penetrating mode, and the bottom of the mixing chamber is communicated with the second Laval spray pipe; the tail end of the second Laval spray pipe is introduced into the spraying device; the raw material heat treatment device mixes raw materials of different physical states and is connected with the mixing chamber of the mixing device through a guide pipe. By means of the system for preparing powder with the gas phase and the liquid phase, the raw materials can be fully mixed, the prepared powder material can be high in activity and small in powder granularity, and a composite powder material can be prepared.

Description

technical field [0001] The invention relates to the field of powder material production, in particular to a system for preparing powder in gas-liquid two-phase. Background technique [0002] Powder material is an important product form and plays an important role in national economy and national defense. Powder engineering has been widely used in building materials, machinery, energy, plastics, rubber, mining, metallurgy, medicine, food, feed, pesticides, fertilizers, papermaking, resources, environmental protection, information, aviation, aerospace, transportation, etc. various fields. [0003] At present, there are two methods of powder production: first, solid-phase powder production, such as grinding; however, the powder produced by ball milling has a wide particle size distribution and is not chemically active. Second, the liquid phase precipitation method prepares powder, which has chemical activity; but there are problems such as high impurity content, polluted wate...

Claims

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Application Information

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IPC IPC(8): B01J2/26
CPCB01J2/26B22F9/08
Inventor 张启辉
Owner 深圳市航盛新材料技术有限公司
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