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Heat-conduction anti-abrasion fireproof material

A refractory material and raw material technology, applied in the field of refractory materials, can solve the problems of short service life, low production efficiency, poor wear resistance, etc., and achieve high wear resistance, good thermal conductivity, and high temperature resistance.

Inactive Publication Date: 2017-04-26
ZHENGZHOU ANLIANKAI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, high-alumina bricks and silica bricks are mostly used as the main refractory materials of industrial kilns heated by flame insulation, such as reduction furnaces, coke ovens, and petroleum coke calciners, which have problems such as low thermal conductivity and poor wear resistance, resulting in low production efficiency. Problems such as short service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a thermally conductive and wear-resistant refractory material, the raw material of which contains the following substances in mass percentage:

[0022] Magnesium Oxide Micropowder 94

[0023] Dispersant 3.2

[0024] Organic binder 2.8

[0025] The dispersant is preferably ammonium carboxymethylacrylate.

[0026] The organic binder is preferably methylenebisacrylamide.

[0027] The above raw materials are mixed and then slip-casted, and sintered at 1700°C.

[0028] The thermally conductive and wear-resistant refractory material prepared by this method has a porosity of 1.9%, is uniform and dense, and has good thermal conductivity. The thermal conductivity can reach about 31W / (m.k) at 1000°C, and the Mohs hardness is slightly higher than that of corundum. It has high wear resistance, good high temperature resistance, and the softening temperature under load can reach above 1680°C. The thermally conductive and wear-resistant refractory material ...

Embodiment 2

[0030] A method for preparing a thermally conductive and wear-resistant refractory material, the raw material of which contains the following substances in mass percentage:

[0031] Magnesium Oxide Micropowder 95

[0032] Dispersant 2.8

[0033] Organic Binder 2.2

[0034] The dispersant is ammonium carboxymethylacrylate;

[0035] The organic binder is methylenebisacrylamide;

[0036] The above raw materials are mixed and then slip-casted, and sintered at 1700°C.

[0037] The thermally conductive and wear-resistant refractory material prepared by this method has a porosity of 1.95%, is uniform and dense, and has good thermal conductivity. The thermal conductivity can reach about 35W / (m.k) at 1000°C, and the Mohs hardness is slightly higher than that of corundum. It has high wear resistance, good high temperature resistance, and the softening temperature under load can reach above 1680°C. The thermally conductive and wear-resistant refractory material has high thermal cond...

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Abstract

The invention provides a heat-conduction anti-abrasion fireproof material. With magnesium oxide micro powder being a main raw material, a dispersing agent and an organic binding agent are added, and by the utilization of slip casting production forming, the heat-conduction anti-abrasion fireproof material is formed through sintering at the temperature of 1750 DEG C. The product is composed of raw materials with good heat conduction, the crystal-phase magnesium oxide has the porosity larger than or equal to 2%, is even and compact and has good heat conduction, the heat-conduction coefficient can reach about 30-35 W / (m.k) at the temperature of 1000 DEG C, moh's hardness is slightly higher than corundum hardness, high anti-abrasion performance is achieved, high temperature resistance is good, and refractoriness under load can reach 1680 DEG C or above.

Description

technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to a refractory material with high thermal conductivity and high wear resistance. Background technique [0002] At present, high-alumina bricks and silica bricks are mostly used as the main refractory materials of industrial kilns heated by flame insulation, such as reduction furnaces, coke ovens, and petroleum coke calciners, which have problems such as low thermal conductivity and poor wear resistance, resulting in low production efficiency. Problems such as short service life occur. Contents of the invention [0003] The purpose of the present invention is to provide a thermally conductive and wear-resistant refractory material, which has high thermal conductivity and good wear resistance, and can effectively improve the low production efficiency of the current reduction furnace, coke oven, petroleum coke calciner and other industrial kilns with flame insulation....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/04C04B35/622
CPCC04B35/66C04B35/04C04B35/622C04B2235/5436C04B2235/656C04B2235/96C04B2235/9607
Inventor 李建涛范晓凯陈泉锋
Owner ZHENGZHOU ANLIANKAI IND CO LTD
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