High-aluminum high-strength refractory castable material

A refractory castable, high-strength technology, used in the field of refractory materials, can solve the problems of slow hardening and condensation, high temperature resistance, wear resistance, insufficient shock resistance, and inability to provide a variety of refractory composite properties.

Inactive Publication Date: 2014-01-29
NINGXIA TIANZONG HONGGUANG COGENERATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the aluminum oxide content of the existing high-alumina monolithic refractory materials is generally below 75%, and its high temperature resistance, wear resistance, and shock resistance are slightly insufficient. Composite properties of refractory materials, product structure compactness and corrosion resistance are poor, and hardening and condensation are slow
Now, the high-temperature zone of various medium and high-temperature furnaces or the inner wall of the combustion chamber (refractory wall and metal surface) of various medium and high-temperature furnaces that use coal, electricity, oil, and gas as

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] (1) The parts by weight of raw materials used to prepare high-alumina high-strength refractory castables are: 40 parts of bauxite, 10 parts of super kaolin, 8 parts of dolomite, 10 parts of zircon, 12 parts of silicon carbide, and 5 parts of binder , 2 parts of coagulation accelerator powder, 1 part of corundum powder, 10 parts of alumina micropowder and 2 parts of water. Bauxite, super kaolin, dolomite, zircon, and silicon carbide are mixed to make granules and fine powders, wherein the weight parts of granules and fine powders are: 40 parts of granules, 60 parts of fine powders, and the particle size range is 3.0mm, fine powder particle size is 0.9mm.

[0012] (2) Premix bauxite, super kaolin, dolomite, zircon, silicon carbide, binder, coagulation accelerator powder, corundum powder, and alumina micropowder, and add water after mixing to obtain high-alumina high-strength refractory casting material.

[0013] Its physical performance indicators are: after baking at 1...

Embodiment 2

[0015] (1) The parts by weight of raw materials used to prepare high-alumina high-strength refractory castables are: 55 parts of bauxite, 5 parts of super-grade kaolin, 2 parts of dolomite, 5 parts of zircon, 8 parts of silicon carbide, and 5 parts of binder , 2 parts of coagulant powder, 2 parts of corundum powder, 15 parts of alumina micropowder and 1 part of water. Bauxite, super kaolin, dolomite, zircon, and silicon carbide are mixed to make granules and fine powders, wherein the weight parts of granules and fine powders are: 50 parts of granules, 50 parts of fine powders, and the particle size range is 1mm, fine powder particle size is 0.1mm.

[0016] (2) Premix bauxite, super kaolin, dolomite, zircon, silicon carbide, binder, coagulation accelerator powder, corundum powder, and alumina micropowder, and add water after mixing to obtain high-alumina high-strength refractory casting material.

[0017] Its physical performance indicators are: after baking at 110℃×12h, the ...

Embodiment 3

[0019] (1) The parts by weight of raw materials used to prepare high-alumina high-strength refractory castables are: 50 parts of bauxite, 8 parts of super-grade kaolin, 5 parts of dolomite, 7 parts of zircon, 7 parts of silicon carbide, and 7 parts of binder , 3 parts of coagulation accelerator powder, 1 part of corundum powder, 11 parts of alumina micropowder and 1 part of water. Bauxite, super kaolin, dolomite, zircon, and silicon carbide are mixed to make granules and fine powders, wherein the weight parts of granules and fine powders are: 60 parts of granules, 40 parts of fine powders, and the particle size range is 2.0mm, fine powder particle size is 0.5mm.

[0020] (2) Premix bauxite, super kaolin, dolomite, zircon, silicon carbide, binder, coagulation accelerator powder, corundum powder, and alumina micropowder, and add water after mixing to obtain high-alumina high-strength refractory casting material.

[0021] Its physical performance indicators are: after baking at...

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Abstract

The invention relates to a high-aluminum high-strength refractory castable material which is prepared from the following components in parts by weight: 40-60 parts of bauxite, 5-10 parts of special kaolin, 2-8 parts of dolomite, 5-10 parts of zircon, 1-15 parts of silicon carbide, 5-10 parts of binder, 2-5 parts of coagulating powder, 1-2 parts of emery powder, 10-15 parts of aluminum oxide micro powder and 1-5 parts of water. Bauxite, special kaolin, dolomite, zircon and silicon carbide are mixed to prepare particles and fine powder, wherein the particles and fine powder comprise 40-60 parts by weight of particles and 60-40 parts by weight of fine powder; the particle size range of the particles is 3.0-1mm and the grain size of the fine powder is 0.9-0.1mm.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a high-aluminum high-strength refractory castable. Background technique [0002] Compared with qualitative refractory products, unshaped refractory materials represented by refractory castables have the advantages of short process flow, low production energy consumption and cost, convenient use, wide application range, integrity and good use effect, so they are widely used in the world. It has developed rapidly, and its proportion in the whole refractory material is getting higher and higher. In some countries with advanced refractory technology, the output of unshaped refractories has approached or even exceeded the output of shaped products. For example, the current output of unshaped refractory materials in Japan accounts for about 60% of the total refractory materials; in the United States, it is about 50%; in Britain, Germany, France and other count...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 穆祥王西来董伟胜刘文艳解仁刘朝晖苏新国王淑娟
Owner NINGXIA TIANZONG HONGGUANG COGENERATION TECH
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