Preparation method of high-temperature smoke filter ceramic material with high thermal shock resistance

A high-temperature flue gas filtration and thermal shock resistance technology, applied in ceramic products, applications, household appliances, etc., can solve the problem that the thermal shock resistance can only reach 1000°C-20°C, and the high temperature resistance and thermal shock resistance need further improvement Improve and filter ceramic pore size, porosity and other problems that are difficult to control, to achieve the effect of easy control of pore size, low raw material price, and easy industrialization promotion
CN102442831AInactive Publication Date: 2012-05-09SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2012-05-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a high-temperature smoke filter ceramic material with high thermal shock resistance, wherein the method takes beta-cordierite, potash feldspar, spodumene and kaolin as raw materials, takes mullite as additive and takes carbon powder, starch, silicon carbide powder, limestone, sawdust, coal slag and ceramic waste as hole-forming agent; the high-temperature smoke filter ceramic material with high porosity, high thermal shock resistance, high compression strength, excellent filter performance and controllable aperture can be prepared by ball grinding, molding and sintering processes. The source of the pore-forming agent is wide; the die pressing, cold isostatic pressing and casting molding can be adopted, so that the operation is convenient andthe production cost is low; the filter ceramic material has controllable aperture and porosity, and excellent high temperature resistance and thermal shock resistance. The technology provided by the invention solves dust filter problem of high-temperature and wet gas well and also is applied in kinds of fields such as separation and purification, sound absorption, catalyst carrier and the like.
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Description

technical field

[0001] The invention relates to the field of porous inorganic materials, in particular to a preparation method of ceramics for filtering high-temperature flue gas with high thermal shock resistance. Background technique

[0002] With the rapid development of my country's industry, the problem of environmental pollution has become more and more prominent. A large amount of industrial smoke and dust discharged seriously affects people's health and hinders the sustainable development of my country's industry. According to incomplete statistics, there are hundreds of thermal power plants in my country, hundreds of thousands of industrial boilers and kilns, and the total amount of smoke and dust emitted every year is as high as 100 million tons. These smoke and dust are discharged in the form of high-temperature gas, and the smoke and dust contain a large number of fine impurity particles and harmful chemicals. The direct discharge of these high-temperature dusty...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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