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Full-sintered ceramic filter element

A technology of sintered ceramics and filter elements, which is applied in the field of filter elements, can solve the problems of high temperature resistance, high pressure resistance, acid and alkali resistance, etc., and achieve the effect of improving the filtration and adsorption effect

Inactive Publication Date: 2012-08-22
苏州市东方净水器厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a fully sintered ceramic filter element, which solves the problems that the existing filter element is not resistant to acid and alkali, high temperature and high pressure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The specific implementation steps are as follows:

[0020] Step 1) mixing 100 g of blue dry stone powder, 700 g of alumina powder with a thickness between 800 mesh and 1200 mesh, 150 g of kaolin and 50 g of paraffin;

[0021] Step 2) Sintering the mixture at a temperature of 1000° C. to 1200° C. to obtain the fully sintered ceramic filter element of the present invention, with an absolute filtration accuracy of 1 micron to 100 microns.

Embodiment 2

[0023] Step 1) mixing 50 g of blue dry stone powder, 750 g of alumina powder with a thickness between 800 mesh and 1200 mesh, 150 g of kaolin and 50 g of a volatile agent;

[0024] Step 2) The mixture is sintered at a temperature of 1000°C to 1200°C, and then a layer of alumina with a thickness of 2000 meshes is applied on the surface of the filter element to obtain the fully sintered ceramic filter element of the present invention, with an absolute filtration accuracy of 0.3 microns to 0.3 microns. 1 micron.

[0025] The fully sintered ceramic filter element of the present invention has the advantages of acid and alkali resistance, high temperature resistance and pressure resistance, and is suitable for filtering flue gas in the chemical production process with a temperature range within 500°C and a pH value within the range of 1-13.

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Abstract

The invention discloses a full-sintered filter element which is formed by mixing 5-10 percent of green dry stone powder, 65-75 percent of alumina powder, 10-20 percent of kaolin and 2-8 percent of evaporating agent counted in percentage by weight and sintering the mixture at the temperature of 1000-1200DEG C. The outer surface of the full-sintered filter element disclosed by the invention is coated by a layer of alumina, so that the absolute filtering precision reaches 0.3-1 micrometer. The full-sintered filter element disclosed by the invention has the advantages of acid and alkali resistance and high temperature and high pressure resistance and is suitable for filtering flue gas in the chemical production process of which the temperature range is within 500DEG C and the pH value is in a range of 1 to 13.

Description

technical field [0001] The invention relates to a filter element, in particular to a fully sintered ceramic filter element. Background technique [0002] In the prior art, activated carbon is generally used as a filter element to purify some liquids and gases, but activated carbon is not resistant to high temperature, acid and alkali, and pressure, so the application range of activated carbon as a filter element is limited. In chemical production, there is an urgent need for a filter element that is resistant to acid and alkali, high temperature and high pressure, and has good filtration and adsorption effects. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a fully sintered ceramic filter element, which solves the problems that the existing filter element is not resistant to acid and alkali, high temperature and high pressure. [0004] In order to solve the above-mentioned techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/63C04B35/622C04B38/06B01D39/20
Inventor 王雪明
Owner 苏州市东方净水器厂
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