Preparation method of unshaped refractory for pointing

Abstract

The invention belongs to the technical field of preparation of refractories and discloses a preparation method of an unshaped refractory for pointing. The preparation method comprises the steps of preparing materials; crushing the raw materials; premixing; pretreating additives; mixing the materials and the like. The preparation method disclosed by the invention has the advantages that the process is simple, and production is easily realized by using existing equipment; the unshaped refractory for pointing, prepared by the preparation method disclosed by the invention, can meet the requirement on refractoriness of the refractory, and the influence on an integral kiln after construction is little; meanwhile, the unshaped refractory has good flowability and can quickly and completely fill joints between every two refractory block bodies to be level.

Description

technical field [0001] The invention relates to the technical field of refractory material manufacturing, in particular to a method for preparing an unshaped refractory material for pointing. Background technique [0002] In the traditional sense, refractory materials refer to inorganic non-metallic materials with a refractoriness of not less than 1580 °C. And parts of the material, and can withstand the corresponding physical and chemical changes and mechanical action. [0003] Most refractory materials are made of natural ores (such as refractory clay, silica, magnesite, dolomite), and some industrial raw materials and synthetic raw materials (such as industrial alumina, silicon carbide, synthetic mullite, Synthetic spinel, etc.) are also increasing, so there are many types of refractory materials. According to the mineral composition, refractories can be divided into silica, aluminum silicate, magnesia, dolomite, olivine, spinel, carbonaceous, zirconium-containing refra...

AI Technical Summary

Problems solved by technology

In the prior art, it is not specifically used for pointing in the construction of refractory materials, and only ordinary amorphous refractory materials can be used for pointing construction; ordinary amorphous refractory materials are made of refractory aggregates and binders. It is a kind of refractory material similar to cement. Ordinary unshaped refractory materials have a single aggregate particle size, and even if there are some powder materials, they are also some raw materials that are the same as or similar to the aggregate. During the pointing construction process, these Aggregate tends to agglomerate together, while powder often adheres to the surface of the aggregate to form larger particles or particle agglomerates. For commonly used unshaped refractory materials, these can be solved by means of vibration, etc., but for connection Due to the limitation of space and construction requirements, these processes cannot be used for the pointing treatment of joints. Therefore, a kind of refractory material that is not easy to agglomerate and adhere to the amorphous refractory during the construction process is required, and it should have good fluidity and can be used in the construction process. In order to obtain this kind of monolithic refractory, it is necessary not only to innovate the formula, but also to make corresponding improvements in the preparation process.