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Ceramic fiber porous filter material reinforcing agent, preparation method thereof and ceramic fiber reinforcing material

A technology of ceramic fiber and filter material, which is applied in the field of ceramic fiber porous filter material reinforcement and ceramic fiber reinforcement material, and can solve problems such as limited strengthening effect

Active Publication Date: 2020-10-20
FUJIAN LONGKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Restricted by the porous characteristics of ceramic fiber materials, the strengthening effect is relatively limited through the regulation of product raw materials, formulas or microstructures

Method used

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Effect test

preparation example Construction

[0040] The present invention also provides a preparation method of ceramic fiber porous filter material reinforcing agent, comprising the following steps:

[0041] A) adding 2 to 8 parts by weight of surfactant into 100 parts by weight of deionized water, and then adding 5 to 40 parts by weight of active mineral powder to obtain a mixed solution;

[0042] B) dispersing the mixed solution by ball milling to obtain a mixed slurry;

[0043] C) adding 20-80 parts by weight of inorganic adhesive material into the mixed slurry, stirring and mixing to obtain a ceramic fiber porous filter material reinforcement.

[0044] In the present invention, the kind and consumption of described tensio-active agent, deionized water, active mineral powder and inorganic sticky material are the same as the kind of above-mentioned surfactant, deionized water, active mineral powder and inorganic sticky material It is consistent with the dosage and will not be repeated here.

[0045] In the present i...

Embodiment 1

[0064] Add 2 parts by weight of polyethylene glycol to 100 parts by weight of deionized water, then add 2 parts by weight of kaolin, 1 part by weight of bentonite and 5 parts by weight of nano silicon dioxide, and use a planetary ball mill to grind and disperse; then, Transfer the ground slurry to an overhead stirrer, add 10 parts by weight of aluminum sol, 8 parts by weight of silica sol and 2 parts by weight of aluminum dihydrogen phosphate, stir and mix at a high speed to obtain a ceramic fiber porous filter material reinforcement . The obtained reinforcing agent has a solid content of 10.43% and a viscosity of 5 mPa·s at room temperature. After strengthening treatment, the ultimate strength of the radially compressed C-ring sample of the ceramic fiber filter tube is 0.97MPa, and the pressure difference is 400Pa.

Embodiment 2

[0066] Add 5 parts by weight of polyethylene glycol to 100 parts by weight of deionized water, then add 2 parts by weight of kaolin, 1 part by weight of bentonite and 7 parts by weight of nano silicon dioxide, and use a planetary ball mill to grind and disperse; then, Transfer the ground slurry to an overhead stirrer, add 8 parts by weight of aluminum sol, 8 parts by weight of silica sol and 4 parts by weight of aluminum dihydrogen phosphate, stir and mix at a high speed to obtain a ceramic fiber porous filter material reinforcement . The obtained reinforcing agent has a solid content of 11.20% and a viscosity of 6 mPa·s at room temperature. After strengthening treatment, the ultimate strength of the radially compressed C-ring sample of the ceramic fiber filter tube is 1.15MPa, and the pressure difference is 420Pa.

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Abstract

The invention provides a ceramic fiber porous filter material reinforcing agent. The ceramic fiber porous filter material reinforcing agent comprises the following components in parts by weight: 100 parts of deionized water, 20-80 parts of an inorganic adhesive material, 5-40 parts of active mineral powder and 2-8 parts of a surfactant, wherein the inorganic adhesive material is one or more selected from a group consisting of alumina sol, silica sol and aluminum dihydrogen phosphate, and the active mineral powder is one or more selected from a group consisting of kaolin, bentonite, calcined kaolin and nanometer silicon dioxide. After the reinforcing agent provided by the invention is implanted into a ceramic fiber porous filter material, the bonding strength between base materials can be effectively improved, and the problems that the ceramic fiber porous filter material is low in strength and prone to damage in the using process are solved; and meanwhile, contradiction among structures and functions such as the strength, the density and the filtering performance of the ceramic fiber porous filter material can be effectively balanced, so the ceramic fiber porous filter material with high strength and good filtering performance is obtained.

Description

technical field [0001] The invention belongs to the technical field of porous inorganic materials, and in particular relates to a ceramic fiber porous filter material reinforcing agent, a preparation method thereof and a ceramic fiber reinforcing material. Background technique [0002] High-temperature flue gas filtration and dust removal technology is a key step to realize the comprehensive utilization of high-temperature flue gas, and it is also an advanced environmental protection technology. The core of this technology lies in the filter material, which has high requirements due to the long-term operation under high temperature and complex flue gas conditions. [0003] Ceramic fiber combines the excellent properties of traditional thermal insulation materials and refractory materials, and has the advantages of high temperature resistance, good thermal stability, small heat capacity, light weight and mechanical vibration resistance, so it is widely used in many industrial...

Claims

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Application Information

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IPC IPC(8): C04B28/34
CPCC04B28/344C04B2201/10C04B24/28C04B14/106C04B14/104C04B14/062C04B22/06C04B24/283C04B18/023
Inventor 沈忠华
Owner FUJIAN LONGKING
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