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Wet process production technology for sintering cordierite

A production process, cordierite technology, applied in the field of sintered cordierite wet production process, can solve the problems of high labor intensity, poor product quality, poor production environment, etc., and achieve the effect of good reactivity, fine texture, and promotion of distribution

Inactive Publication Date: 2015-05-13
SANMENXIA XINYANGSHAO SYNTHETIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process is simple to produce, but the labor intensity is high, the production environment is poor, the energy consumption is high, and the product quality is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A wet production process for sintered cordierite, which uses coal gangue, talc, light burnt magnesia and cordierite clinker as main raw materials; specifically comprises the following steps:

[0025] 1) Ingredients grinding: add 75% coal gangue, 10% talc, 10% light burnt magnesia and 5% cordierite clinker to the wet ball mill according to the weight percentage, and then add 0.3% calcium lignosulfonate by weight of the main raw material and water of 1.2 times the weight of the main raw material, then start grinding, and grind for 10 hours to obtain mud a, the particle size of the particles in mud a is 500 mesh sieve and the remaining 8% (refer to mass percentage, the same below); the particle size of the coal gangue is less than 5mm, and the talc Particle size is less than 1mm;

[0026] 2) Dehydration: mud a is dehydrated in the filter press for 10 minutes to obtain mud cake b, and the dehydration pressure of the filter press is 1.8Mpa;

[0027] 3) Forming: mud cake b i...

Embodiment 2

[0031] A wet process for producing sintered cordierite, which uses coal gangue, chlorite, light burnt magnesia and cordierite clinker as main raw materials; specifically comprises the following steps:

[0032] 1) Ingredients grinding: add 62% coal gangue, 15% chlorite stone, 18% light burnt magnesia and 5% cordierite clinker to the wet ball mill according to the weight percentage, and then add 0.3% lignin by weight of the main raw material Calcium sulfonate and water of 1.2 times the weight of the main raw material, then start to grind, and grind for 10 hours to obtain mud a, the particle size of the particles in mud a is 500 mesh sieve remaining 5%; the particle diameter of the gangue is less than 5mm, and the particle diameter of talc is less than 1mm;

[0033] 2) Dehydration: mud a is dehydrated in the filter press for 10 minutes to obtain mud cake b, and the dehydration pressure of the filter press is 2.2Mpa;

[0034] 3) Forming: mud cake b is subjected to vacuum mud refin...

Embodiment 3

[0038] A wet process for producing sintered cordierite, which uses coal gangue, chlorite, light burnt magnesia and cordierite clinker as main raw materials; specifically comprises the following steps:

[0039] 1) Ingredients grinding: add 70% coal gangue, 15% chlorite stone, 12% light burnt magnesia and 3% cordierite clinker to the wet ball mill by weight percentage, and then add 0.3% lignin by weight of the main raw material Calcium sulfonate and water of 1.1 times the weight of the main raw material, then start to grind, grind for 10 hours to get mud a, the particle size of the particles in mud a is 500 mesh sieve and the remaining 5%; the particle size of the gangue is less than 5mm, and the particle size of talc is less than 1mm;

[0040] 2) Dehydration: mud a is dehydrated in the filter press for 10 minutes to obtain mud cake b, and the dehydration pressure of the filter press is 2.4Mpa;

[0041] 3) Forming: mud cake b is subjected to vacuum mud refining (vacuum degree is...

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Abstract

The invention relates to a wet process production technology for sintering cordierite. Coal gangue, a magnesium silica raw material, light roasting magnesia and cordierite chamotte are used as main raw materials; 60 to 80 percent of coal gangue, 8 to 20 percent of magnesium silica raw material, 10 to 20 percent of light roasting magnesia and 2 to 5 percent of cordierite chamotte are added into a container by weight percentage, then calcium lignosulphonate of which the weight is 0.1 to 0.5 percent that of the main raw materials and water of which the weight is 1.0 to 1.3 times that of the main raw materials are added, and mud a is obtained through grinding in a sealing manner; the sintering cordierite can be obtained through dehydrating, molding, drying and calcining of the mud a. The technology changes the traditional method for producing the sintering cordierite by adopting a dry method, the energy consumption of the technology is low, the volume density of the produced sintering cordierite product is greater than 2.0 g / cm<3>, and the quality is high.

Description

technical field [0001] The invention belongs to the technical field of refractory production, and in particular relates to a wet production process of sintered cordierite. Background technique [0002] Cordierite is widely used as kiln furniture, honeycomb ceramics and porous honeycomb ceramics because of its low expansion coefficient, high thermal shock stability, and good chemical corrosion resistance. Because the stock of natural cordierite is very small, cordierite is synthesized by solid phase sintering of raw materials containing aluminum, silicon and magnesium. Commonly used solid-phase sintering combined to form cordierite is generally produced by dry method. The specific steps are to mix the raw materials coal gangue, magnesia siliceous raw materials and magnesia according to a certain proportion after grinding, and then put them into kiln for calcination. The volume density of cordierite after calcination is at 1.80g / cm 3 . This process is simple to produce, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 黄克忠周红军张东方
Owner SANMENXIA XINYANGSHAO SYNTHETIC MATERIALS
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