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Porous ceramic filter and preparation method thereof

A technology of porous ceramics and filters, which is applied in ceramic products, applications, household appliances, etc., can solve the problems of high cost, poor filtration performance and pressure resistance, and is not suitable for rainwater filtration, and achieves low raw material cost and filtration performance. The effect of excellent, excellent performance

Inactive Publication Date: 2010-09-15
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a porous ceramic filter and its preparation method, to solve the technical problems that the existing porous ceramic filter has poor filtration performance and pressure resistance, high cost, and is not suitable for rainwater filtration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1, this kind of porous ceramic filter is formed by adding water and stirring solid powder, forming, drying and calcining at high temperature. The proportion of the solid powder is as follows in terms of mass percentage:

[0039] Feldspar powder 35%;

[0040] Quartz powder 15%;

[0041] Clay 30%;

[0042] Calcined clay 10%;

[0043] Calcium carbonate powder 3%;

[0044] Montmorillonite 6%;

[0045] Sawdust 1%;

[0046] Described water adopts distilled water, and the addition amount of distilled water is 35% of above-mentioned solid powder gross weight.

Embodiment 2

[0047] Embodiment 2, this kind of porous ceramic filter is formed by adding water and stirring solid powder, forming, drying and calcining at high temperature. The proportion of the solid powder is as follows in terms of mass percentage:

[0048] Feldspar powder 20%;

[0049] Quartz powder 15%;

[0050] Clay 40%;

[0051] Calcined clay 15%;

[0052] Calcium carbonate powder 6%;

[0053] Montmorillonite 2%;

[0054] Sawdust 2%;

[0055] Described water adopts distilled water, and the addition amount of distilled water is 20% of above-mentioned solid powder gross weight.

Embodiment 3

[0056] Embodiment 3, this porous ceramic filter is formed by adding water and stirring solid powder, forming, drying and calcining at high temperature. The proportion of the solid powder is as follows in terms of mass percentage:

[0057] Feldspar powder 25%;

[0058] Quartz powder 20%;

[0059] Clay 35%;

[0060] Calcined clay 12%;

[0061] Calcium carbonate powder 2%;

[0062] Montmorillonite 4%;

[0063] Sawdust 2%;

[0064] Described water adopts distilled water, and the addition amount of distilled water is 30% of above-mentioned solid powder gross weight.

[0065] The particle size of the feldspar powder, quartz powder and pottery clay in the above embodiments are all less than 100 mesh, and the fineness of the sawdust is less than 50 mesh.

[0066] The calcined clay in the above embodiments is obtained by calcining the clay at a high temperature of 1100-1200° C. and then grinding and screening, and the particle size of the calcined clay is less than 80 mesh.

[0...

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Abstract

The invention relates to a porous ceramic filter and a preparation method thereof. The method comprises the following steps of: mixing 20-40 percent of feldspar powder, 15-25 percent of quartz powder, 30-50 percent of argil, 10-20 percent of calcining argil, 1-10 percent of calcium carbonate powder, 1-10 percent of montmorillonite and 1-5 percent of saw dust according to the weight percentage, meanwhile, adding water which is 20-40 percent of the total weight of the solid powder and uniformly stirring; placing the uniformly stirred raw materials into a die and extruding for moulding; and after the raw materials are dried, placing in a high-temperature furnace, heating to 1,100-1,400 DEG C, maintaining the constant temperature for 1-3 hours and cooling along with the furnace to obtain the porous ceramic filter. The porous ceramic filter has more favorable high-temperature resistance and strength, simple production process, low raw material cost and favorable filtering performance and is particularly suitable for rainwater filtration.

Description

technical field [0001] The invention relates to a porous ceramic filter, in particular to a porous ceramic filter suitable for filtering and purifying rainwater. Background technique [0002] As we all know, water resources protection is a key issue in the design of new green buildings, and the rehydration treatment of rainwater in the planning area of ​​the building can effectively reduce the consumption of domestic water. The ceramic microfiltration device with porous ceramic material as the filter medium can not only solve the difficult filtration problems of high temperature and high pressure medium, strong acid and alkali medium and chemical solvent medium, but also has the characteristics of high filtration precision, good clean state, easy cleaning and long service life. And widely used in the field of water treatment. [0003] Porous ceramics are a class of inorganic materials with many pores, which mainly use the unique properties of the combination of the pore str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B35/16
Inventor 王珂石云兴宋中南王占一王宝华刘伟
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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