Brown fused alumina, supporting production equipment and production method thereof

Abstract

The invention relates to the field of abrasive materials, particularly to brown fused alumina, supporting production equipment and a production method thereof. A purpose of the present invention is toprovide a low cost processing method for manufacturing high-strength brown fused alumina. The components of the formula comprise 0.01-6.1% of silica, 2.5-4% of titanium dioxide, and 90-97% of aluminapowder. The production equipment comprises a feeding device, wherein a material preparing device, a stirring device, a material falling device and a melting device are sequentially arranged along thefeeding device, the stirring device comprises a stirrer, a gas discharge pipe is arranged in the stirring blade in the stirrer, the outlet end of the gas discharge pipe is positioned above the stirring blade to form an aeration port, the inlet end of the gas discharge pipe is communicated to a gas source through a connecting pipe, and the stirrer is provided with an anti-dissipation baffle. According to the present invention, with the equipment and the method, the impurities in the finished product are less, the kinds of the raw materials are less, the materials are easy to prepare, almost noiron exists in the raw materials, the addition of coal or carbon coke during the processing can be avoided, the stability and the coloring performance of the product are increased, and the corrosionresistance and the oxidation resistance of the finished product are strong.

Description

technical field [0001] The invention relates to the field of abrasive materials, in particular to brown corundum, production and preparation equipment and a production and preparation method. Background technique [0002] Brown fused alumina is a brown frit crystallized by mixing high-alumina bauxite clinker, carbon materials and iron filings into an electric arc furnace after high-temperature melting and reduction of impurities and cooling. Brown corundum smelting belongs to ore-thermal electric furnace smelting method. There are three main smelting methods: fixed furnace smelting method, dumping furnace smelting method and flow smelting method. There are two furnace smelting methods. [0003] Technicians have found through long-term practical work that the disadvantages of the current technology are: 1. The content of impurities is large, the impact on the environment during the production process is large, and the pollution is serious; 2. The cost of the smelting process...

AI Technical Summary

Problems solved by technology

[0003] Technicians have found through long-term practical work that the disadvantages of the current technology are: 1. The content of impurities is large, the impact on the environment during the production process is large, and the pollution is serious; 2. The cost of the smelting process is high and the product quality is poor; 3. In the current Under policy guidance, the main material in the original technology, bauxite, has been banned from use, and the majority of technicians are still exploring alternative methods; 4. At this stage, the ingredients are simply stirred and mixed after manual or semi-automatic weighing, and the mixing is not thorough , resulting in poor quality finished products

Images