Method for producing zinc powder and its mfg. device

A manufacturing method and zinc powder technology are applied in the field of zinc powder manufacturing and its preparation device, and can solve the problems of environmental pollution, mixed thickness and fineness of zinc powder, etc.

Inactive Publication Date: 2003-07-23
上海笙创新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The preparation of the existing zinc powder is to melt the zinc ingot in the molten zinc pool, and then directly obtain the zinc powder through the rectification tower and the cooler. The environment brings some pollution

Method used

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  • Method for producing zinc powder and its mfg. device
  • Method for producing zinc powder and its mfg. device

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Embodiment Construction

[0012] according to figure 1 As shown, the present invention is mainly composed of molten zinc pool 1, rectification tower 2, main condenser 3, super-fine condenser 4 and pressure balance condenser 5, coarse powder tank 9 and fine powder tanks 10 and 11; The lower part of the tank 1 is equipped with a slag discharge port. The rectification tower 2 is formed by staggered stacking of silicon carbide trays with holes on one side and a plate shape on the other. The zinc vapor enters the main condenser 3 from the upper outlet of the rectification tower 2 , The main condenser 3 is a cavity in the middle, the cavity and the outer wall is a cooling water interlayer, the main condenser 3 is provided with a zinc powder front outlet in front of the top of the main condenser 3, and a zinc powder transport is connected between the zinc powder front outlet and the pressure balance condenser 5 Tube 6, the main condenser 3 is provided with a zinc powder rear outlet behind the top of the main cond...

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Abstract

A process for preparing zinc powder includes smelting raw zinc, introducing to rectifying tower with high-temp towe trays, evaporating while rectifying for removing impurities, introducing Zn vapour to primary condenser, sudden condensing, outputting zinc powder from higher-temp end and then introducing to pressure-balanced condenser to obtain superfine zinc powder, outputting zinc powder from lower-temp end, superfine classifying to obtain superfine and ultrapure zinc powder, ball grinding in inertial gas, and squeezing to obtain flaky zinc powder. Its advantages are high uniformity, not oxidizing, and easy control.

Description

Technical field [0001] The invention relates to a method for processing zinc powder and a preparation device thereof. Background technique [0002] The current preparation of zinc powder is to melt the zinc ingot in the molten zinc pool, and then directly obtain the zinc powder by cooling through the rectification tower and the cooler. The zinc powder obtained by this method is mixed with coarse and fine particles, and at the same time, the method of heating by burning coal is used The environment brings certain pollution. Summary of the invention [0003] In order to classify coarse and fine zinc powder to obtain ultrafine ultrapure zinc powder and improve the uniformity of zinc powder, the present invention provides a method for processing zinc powder with uniform fineness distribution and a device for implementing the method. [0004] The invention provides a method for manufacturing zinc powder. The raw material zinc is melted into a rectification tower with a high temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/12C22B19/32
Inventor 翟国华
Owner 上海笙创新材料有限公司
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