Honeycomb ceramic filter and preparation method thereof

A honeycomb ceramic and filter technology, which is applied in ceramic products, chemical instruments and methods, filtration and separation, etc., can solve the problems of unsatisfactory use temperature, unstable performance, low high temperature strength, etc., and achieve thermal shock stability. Good, strong resistance to chemical attack, low temperature creep rate effect

Inactive Publication Date: 2013-02-06
晋城市富基新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] At present, some of the existing honeycomb ceramic filters do not meet the expected temperature, some do not achieve the expected effect, and some have low high-temperature strength and unstable performance.

Method used

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  • Honeycomb ceramic filter and preparation method thereof
  • Honeycomb ceramic filter and preparation method thereof
  • Honeycomb ceramic filter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Firstly, according to the weight ratio of 64:9:8:6:13, mullite, kaolin, ultrafine silica, alumina and zirconium silicate are fully mixed to form ceramic powder.

[0051] Next, mix the ceramic powder, glue, glycerin, water, and cellulose according to the weight ratio of 75:8:5:8:4, put them into a mixer and stir for 1 hour to make it evenly stirred to make plastic mud.

[0052] The plastic mud is roughed and refined by a mud refining machine, then processed by a vacuum machine, and extruded by a mold in a molding machine to form a ceramic filter blank.

[0053]Put the ceramic filter body into a microwave oven for finalization, then send it into a drying room, control the temperature within the range of 100-110°C, dry it for 24 hours to harden it, and slice the dried body to obtain a neat Honeycomb filter.

[0054] Put the processed complete honeycomb ceramic body into the sintering furnace, heat up to 550°C at a heating rate of 60°C / h for low-temperature debinding, and ...

Embodiment 2

[0056] First, according to the weight ratio of 62:8:9:7:14, mullite, kaolin, ultrafine silica, alumina, and zirconium silicate are fully mixed to form ceramic powder.

[0057] Next, mix the ceramic powder, glue, glycerin, water, and cellulose according to the weight ratio of 73:8:5:10:4, put them into a mixer and stir for 1 hour to make it evenly stirred to make ceramic mud.

[0058] Then, the ceramic mud is roughly refined and refined by a mud refining machine, and processed by a vacuum machine, and the extrusion molding process is adopted, and the ceramic body is extruded through a mold in a molding machine.

[0059] Put the ceramic filter blank into microwave shape, and then send it into the drying room. The temperature is controlled in the range of 100-110°C, and it is dried for 24 hours to harden. The dried blank is sliced ​​to obtain a neat honeycomb filter. device.

[0060] Put the processed complete honeycomb ceramic body into the sintering furnace, heat up to 550°C a...

Embodiment 3

[0062] Firstly, according to the weight ratio of 63:10:9:8:10, mullite, kaolin, ultrafine silica, alumina and zirconium silicate are fully mixed to form ceramic powder.

[0063] Next, mix the ceramic powder, glue, glycerin, water, and cellulose according to the weight ratio of 72:9:7:9:4, put them into a mixer and stir for 1 hour to make the stirring even, and make ceramic mud.

[0064] Then, the ceramic mud is roughly refined and refined by a mud refining machine, and processed by a vacuum machine, and the extrusion molding process is adopted, and the ceramic body is extruded through a mold in a molding machine.

[0065] Put the ceramic filter blank into microwave shape, and then send it into the drying room. The temperature is controlled in the range of 100-110°C, and it is dried for 24 hours to harden. The dried blank is sliced ​​to obtain a neat honeycomb filter. The body of the device.

[0066] Put the processed complete honeycomb ceramic body into the sintering furnace,...

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Abstract

The invention discloses a honeycomb ceramic filter and a preparation method thereof, and belongs to the field of inorganic nonmetal. The honeycomb ceramic filter is obtained after ceramic powder and plastic pug are sequentially subjected to ball milling, mixing, decaying, vacuum pugging and extrusion forming, dry cutting and sintering, wherein the ceramic powder is prepared by mixing mullite, kaolin, ultrafine silicon dioxide, aluminum oxide and zirconium silicate according to the proportion, and the plastic pug is prepared by mixing auxiliary materials composed of a glue, glycerol and hydrate cellulose. The honeycomb ceramic filter has good high-temperature strength and good thermal shock resistance. The method has the characteristics of low cost and simplicity in operation and is suitable for industrial production.

Description

technical field [0001] The invention relates to a honeycomb ceramic filter and a preparation method thereof, belonging to the technical field of inorganic non-metal, in particular to a honeycomb containing mullite, kaolin, ultrafine silica, alumina and zirconium silicate as ceramic components Ceramic filter and its preparation method. Background technique [0002] During the smelting and pouring process of various metal liquid alloys, the casting reject rate caused by casting defects such as non-metallic inclusions and shrinkage holes is generally as high as 50-60% of the total rejects. Inclusion defects not only seriously reduce the mechanical properties and casting properties of castings, but also have harmful effects on the machining and appearance of castings. Purifying liquid casting alloys and reducing or eliminating the outgassing of various non-metallic inclusions is undoubtedly an important technical measure to obtain high-quality castings. [0003] Filtration tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C04B35/185C04B35/622B01D39/20
Inventor 李军虎田建刚王卫国
Owner 晋城市富基新材料股份有限公司
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