Circularly-used tundish castable for industrial furnace and preparation technology thereof

Abstract

The invention discloses a circularly-used tundish castable for an industrial furnace and a preparation technology thereof. The circularly-used tundish castable for the industrial furnace comprises the following components by weight percentage: 70-85% of a scrap steel package castable, 10-25% of special-grade alumina, 1-6% of mullite, 2-3% of silica powder, 2-3% of cement, and 0.1-0.15% of an additive. The circularly-used tundish castable for the industrial furnace is capable of saving mineral resources, reducing the environmental pollution, greatly reducing the cost of a fireproof material, and reducing the environmental pollution of parts of industrial wastes. The environment is protected, the secondary utilization of the energy and resource can be realized, and the circularly-used tundish castable for the industrial furnace has the remarkable effects of energy conservation and environmental protection.

Description

technical field [0001] The invention relates to a tundish casting material and a preparation process thereof, in particular to a recycled tundish casting material for industrial kilns and a preparation process thereof. Background technique [0002] Industrial kilns in high-temperature industries such as steel, cement, and glass consume a large amount of refractory materials every year, and also generate a large amount of waste refractory materials, resulting in the waste of a large amount of available resources and serious environmental pollution. At present, the recycling of waste tundish castables is usually simply by recycling pellets and then adding matrix materials. The recycled tundish castables produced by this method have many disadvantages: (1) The recycling process is too simple, The yield of raw materials is low; (2) the proportion of waste materials used as aggregate is less than 70%, and a large amount of ordinary matrix materials need to be added; (3) the servi...

AI Technical Summary

Problems solved by technology

[0002] Industrial kilns in high-temperature industries such as steel, cement, and glass consume a large amount of refractory materials every year, and also generate a large amount of waste refractory materials, resulting in a waste of a large amount of available resources and serious environmental pollution.

At present, the recycling of waste tundish castables is usually simply by recycling pellets and then adding matrix materials. The recycled tundish castables produced by this method have many disadvantages: (1) The recycling process is too simple, The raw material yield is low; (2) The proportion of waste materials used as aggregate is less than 70%, and a large amount of common matrix materials need to be added; (3) The service life of the lining is short