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Alkali-corrosion-resistant refractory material for organic waste liquid incinerator and preparation method thereof

A technology of organic waste liquid and refractory materials, applied in the field of refractory materials, can solve problems such as bursting of refractory materials, small high-temperature linear expansion coefficient, corrosion of alkali metals, etc., achieve good flexural strength and thermal shock stability, and excellent resistance to alkali corrosion Performance, the effect of meeting the requirements of use

Inactive Publication Date: 2020-01-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an alkali corrosion resistant refractory material for an organic waste liquid incinerator and a preparation method thereof. The refractory material has high load softening temperature, high compressive strength, small high temperature linear expansion coefficient, low thermal conductivity, and burst resistance And the characteristics of excellent anti-alkali metal corrosion performance can solve the problems of cracks in the operation of organic waste liquid incinerators that cause refractory materials to burst and alkali metal corrosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Alkali-resistant corrosion-resistant refractory material for organic waste liquid incinerator. The main materials of the refractory material are corundum and magnesia, the binder is Portland cement and hydroxymethyl cellulose, and the anti-alkali penetration agent is barium sulfate. For example:

[0029] Corundum 28 parts

[0030] 55 parts of magnesia

[0031] Portland cement 7 parts

[0032] 8 parts hydroxymethylcellulose

[0033] Barium sulfate: 2 parts

[0034] Wherein, the sum of the mass proportions of corundum, magnesia, Portland cement, hydroxymethyl cellulose and barium sulfate is 100 parts.

[0035] The preparation method of the anti-alkali corrosion refractory material of the organic waste liquid incinerator is as follows:

[0036] Step (1): Stir the corundum, magnesia, Portland cement, hydroxymethyl cellulose and barium sulfate in the above ratio under a forced mixer for 30 minutes to obtain a mixture;

[0037] Step (2): The mixture was mixed with water...

Embodiment 2

[0042] Alkali-resistant corrosion-resistant refractory material for organic waste liquid incinerator. The main materials of the refractory material are corundum and magnesia, the binder is Portland cement and hydroxymethyl cellulose, and the anti-alkali penetration agent is barium sulfate. For example:

[0043] Corundum 43 parts

[0044] 45 parts of magnesia

[0045] Portland cement 5 parts

[0046] 5 parts hydroxymethylcellulose

[0047] Barium sulfate: 2 parts

[0048] Wherein, the sum of the mass proportions of corundum, magnesia, Portland cement, hydroxymethyl cellulose and barium sulfate is 100 parts.

[0049] The preparation method of the anti-alkali corrosion refractory material of the organic waste liquid incinerator is as follows:

[0050] Step (1): Stir the corundum, magnesia, Portland cement, hydroxymethyl cellulose and barium sulfate in the above ratio under a forced mixer for 15 minutes to obtain a mixture;

[0051] Step (2): add water to the mixture and kne...

Embodiment 3

[0056] Alkali-resistant corrosion-resistant refractory material for organic waste liquid incinerator. The main materials of the refractory material are corundum and magnesia, the binder is Portland cement and hydroxymethyl cellulose, and the anti-alkali penetration agent is barium sulfate. For example:

[0057] Corundum 25 parts

[0058] 50 parts of magnesia

[0059] Portland cement 10 parts

[0060] 10 parts of hydroxymethylcellulose

[0061] Barium sulfate: 5 parts

[0062] Wherein, the sum of the mass proportions of corundum, magnesia, Portland cement, hydroxymethylcellulose and barium sulfate is 100 parts.

[0063] The preparation method of the anti-alkali corrosion refractory material of the organic waste liquid incinerator is as follows:

[0064] Step (1): Stir the corundum, magnesia, Portland cement, hydroxymethyl cellulose and barium sulfate in the above ratio under a forced mixer for 20 minutes to obtain a mixture;

[0065] Step (2): add water to the mixture and...

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Abstract

The invention belongs to the technical field of refractory materials, and particularly relates to an alkali-corrosion-resistant refractory material for an organic waste liquid incinerator and a preparation method thereof. The refractory material is prepared from the following components in parts by mass: 25 to 50 parts of corundum, 40 to 60 parts of magnesia, 5 to 10 parts of Portland cement, 5 to10 parts of hydroxymethyl cellulose, 2 to 5 parts of barium sulfate and 1 to 3 parts of boron oxide. The invention aims to provide the alkali-corrosion-resistant refractory material for the organic waste liquid incinerator and the preparation method thereof. The refractory material has the characteristics of high refractoriness under load, high compressive strength, small high-temperature linearexpansion coefficient, low thermal conductivity and excellent burst resistance and alkali metal corrosion resistance, and can solve the problems of refractory material burst and alkali metal corrosioncaused by generation of cracks in the operation process of the organic waste liquid incinerator.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to an alkali-corrosion-resistant refractory material for an organic waste liquid incinerator and a preparation method thereof. Background technique [0002] Refractory materials are necessary materials for high-temperature-resistant equipment. They have good volume stability and good high-temperature mechanical properties. They are widely used in high-temperature industries in various fields of the national economy such as steel, nonferrous metals, cement, glass, ceramics, chemicals, machinery, and electric power. In the production process, it plays an irreplaceable important role in the development of high temperature industry. [0003] At present, the industrial organic waste liquid treatment mainly adopts incineration treatment technology. However, industrial organic waste liquid contains Na 2 SO 4 , KCl, NaCl and other alkali metal salts, and acidic w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/622
CPCC04B35/622C04B35/66C04B2235/3206C04B2235/3217C04B2235/3409C04B2235/448
Inventor 赵莹程桂石张家赫董长青
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)