Automatic-flowing quick-drying pouring material for blast furnace iron runner

Abstract

The invention discloses an automatic-flowing quick-drying pouring material for a blast furnace iron runner. The automatic-flowing quick-drying pouring material is composed of the following main raw materials in percentage by weight: 65-70% of dense corundum, 14-18% of black silicon carbide, 3-7% of silicon nitride, 1-2% of a composite water-reducing admixture, 1-2% of a compound anti-blasting material, 1-3% of pure aluminum silicate cement, 1-3% of ultrafine silica powder, 2-4% of reactive alumina micro powder and 2-4% of silica powder. The preparation method comprises the following steps: adding various raw materials into a mixing reactor with a powerful stirring propeller for performing strong stirring, and packaging after stirring, thereby obtaining the product, namely the automatic-flowing quick-drying pouring material for the blast furnace iron runner. The product disclosed by the invention has the advantages of being resistant to corrosion of molten iron and slag, high in erosionresistance, excellent in thermal shock resistance, excellent in flaking resistance, high in oxidation resistance, easy in construction, capable of performing rapid baking without burst and preventingproduction of harmful gases and adhesion of iron slag, and long in service life, and the like.

Description

1. Technical field: [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a quick-drying self-flowing castable for blast furnace tapping channels. 2. Background technology: [0002] Refractory materials have been widely used in various technical fields of the national economy such as iron and steel, non-ferrous metals, glass, cement, ceramics, petrochemicals, machinery, boilers, light industry, electric power and military industry, and are essential to ensure the production operation and technological development of the above industries Basic materials play an irreplaceable and important role in the development of high-temperature industrial production. Especially in the metallurgical industry, it is used in the largest amount, accounting for 50% to 60% of the total output. The development of refractory materials plays a decisive role in the application of national industrial production. The new development of high temper...

AI Technical Summary

Problems solved by technology

[0005] Due to the disadvantages of poor construction environment, high labor intensity, and the durability of the castable is affected by the artificial construction quality of the vibrating castable