Composite castable refractory

A technology of refractory castables and castables, applied in the field of refractory and high temperature resistant materials, can solve the problems of uncontrollable coagulation of silica sol and achieve good fluidity
CN102491771AActive Publication Date: 2012-06-13ANHUI RUITAI NEW MATERIALS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI RUITAI NEW MATERIALS TECH
Publication Date
2012-06-13

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Abstract

The invention relates to a composite castable refractory. The composite castable refractory comprises adamantine spar or / and alumina, mullite and silicon carbide which serve as granules, cement, alumina micro powder and wollastonite which serve as matrixes, a phosphate deflocculant, an organic acid retarder, diluted silica sol and water. A preparation method comprises the following steps of: weighing solid raw materials according to the amount of a formula, blending, and pouring the mixture into a stirrer; adding the silica sol and the water according to the amount of the formula; and stirring, dumping, conveying, pouring, vibrating, demolding, conserving and baking to prepare the composite castable refractory. The composite castable refractory is normal in coagulation and quick in hardening, has the excellent performance of high purity, high-temperature resistance, low air holes and erosion resistance, and is suitable for linings at the positions with the requirements of high-temperature resistance, erosion resistance or high-temperature abrasion resistance in high-temperature kiln furnaces.
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Description

technical field

[0001] The invention relates to refractory and high temperature resistant materials, in particular to a composite refractory castable. Background technique

[0002] Refractory castables (also known as high-temperature-resistant castables) are granular and powdery materials made of refractory / high-temperature resistant substances, and are composed of a certain amount of binder and moisture. It has high fluidity, is suitable for pouring construction, and is an unshaped refractory material that can be hardened without heating. Generally, it is poured, vibrated or tamped at the site of use, and it can also be made into prefabricated parts. Refractory castables are the main varieties of unshaped refractory materials.

[0003] Cement, powdery hydraulic inorganic gelling material. Add water and stir to form a slurry, which can be hardened in the air or better hardened in water, and can firmly bond sand, stone and other materials together. As an important cementin...

Claims

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