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Ceramic filtering element

A technology of ceramic filtration and components, which is applied in the field of filters, can solve the problems that the strength of ceramic filter components needs to be improved, and achieve the effects of stable structure, good stability and high wear resistance

Active Publication Date: 2015-07-29
宜兴市科创环保有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of the ceramic filter element needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The mud body consists of 80% barren raw materials, 7% clay, 5% binder and 8% water, of which barren raw materials include 30% alumina, 25% white corundum and 25% volcanic rock ash . The average particle size of alumina, white corundum, volcanic rock ash and clay is 20-50um. The formed mud body is in the shape of a cuboid with an average pore diameter of 5-20um. Coating the first ceramic layer on the surface of the clay body, the average diameter of the alumina particles made of the first ceramic layer is 5-20um, and the average pore diameter of the first ceramic layer made by high-temperature calcination is 1.2-5um. The second ceramic layer is coated on the surface of the first ceramic layer, the average particle size of alumina particles made of the second ceramic layer is 1.2-5um, and the average pore size of the second ceramic layer made by high-temperature calcination is 0.4-1.2 um. The third ceramic layer is coated on the surface of the second ceramic layer, the...

Embodiment 2

[0021] The mud body consists of 84% barren raw materials, 5% clay, 4% binder and 7% water, among which the barren raw materials include 44% alumina and 40% volcanic rock ash. The average particle size of alumina and volcanic rock ash and clay is 20-50um. The body of the formed mud body is a hollow cylinder with an average pore diameter of 5-20um. Coating the first ceramic layer on the inner wall surface of the mud body, the average particle size of the zirconium dioxide particles made of the first ceramic layer is 5-20um, and the average pore size of the first ceramic layer made through high-temperature calcination is 1.2 ~ 5um. The second ceramic layer is coated on the surface of the first ceramic layer, the average particle size of the zirconium dioxide particles made of the second ceramic layer is 1.2-5um, and the average pore size of the second ceramic layer made by high-temperature calcination is 0.4-5um. 1.2um.

[0022] The mud body is a hollow cylindrical filter unit...

Embodiment 3

[0025] The mud body consists of 82% barren raw materials, 6% clay, 3% binder and 9% water, among which alumina is selected as the barren raw material. The average particle size of alumina is 20-50um. The body of the formed mud body is a hollow cylinder with an average pore diameter of 5-20um. A layer of ceramic layer is coated on the inner wall surface of the mud body, the average particle size of the zirconium dioxide particles made of the ceramic layer is 5-20 um, and the average pore size of the ceramic layer is 1.2-5 um. The average particle size of the zirconia particles used to make the ceramic layer is smaller than the average particle size of the alumina particles made into the clay body.

[0026] The mud body is a hollow cylindrical filter unit made of porous material formed by the ceramic extrusion molding process. There are a plurality of meshes on the side wall of the mud body, and the meshes form a fluid passage. A ceramic layer is coated on the surface of the ...

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Abstract

The invention discloses a ceramic filtering element. The ceramic filtering element comprises a briquette body containing a non-plastic raw material, clay and a binder; the surface of the briquette body is coated with multiple ceramic layers, and each ceramic layer has thickness of 0.001-100 um, and is a high-temperature calcination layer. The briquette body prepared from the non-plastic raw material has good stability; after coating a layer of ceramic particles on the briquette body, high temperature calcination is carried out to tightly bond the first ceramic layer with the briquette body; a second layer of ceramic particles coats on the ceramic layer subjected to high temperature calcination and then high temperature calcination is carried out again, so that the second ceramic layer tightly bonds with first ceramic layer; other ceramic layers coats in turn until the set average filtering aperture of the ceramic filtering element is reached. The briquette body provided by the invention employs non-plastic raw material and clay, and the ceramic layers are subjected to calcination to realize relatively stable structure, high abrasion resistance and high corrosion resistance.

Description

technical field [0001] The invention belongs to the field of filters, and more specifically relates to a ceramic filter element. Background technique [0002] Ceramic filter elements are widely used in the fields of water treatment and exhaust gas treatment, and can also be used in other fields such as medicine and food to filter and remove suspended substances, bacteria, dust, etc. in fluids such as liquids and gases. . In addition, it can also be used to separate and refine liquid mixtures with two or more components, and separate and refine gas mixtures with two or more components. However, the strength of the ceramic filter element needs to be improved. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a ceramic filter element with good fastness and durability. [0004] In order to achieve the above-mentioned technical purpose, the technical scheme of the present invention is as follows: [0005] A cer...

Claims

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Application Information

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IPC IPC(8): B01D39/20C04B35/10C04B41/87
Inventor 高林其
Owner 宜兴市科创环保有限公司