Converter bedding face repairing material and use method thereof

Abstract

The invention relates to a converter bedding face repairing material and a use method of the converter bedding face repairing material. According to the technical scheme, the converter bedding face repairing material is composed of a component A and a component B; the component A is formed by mixing raw materials including 40-65 wt% of magnesia particles, 10-20 wt% of forsterite particles, 5-15 wt% of magnesia fine powder, 10-15 wt% of fused quartz fine powder, 2-5 wt% of quartz fine powder, 5-10 wt% of silicon carbide micro powder, 0.5-2 wt% of alpha-Al2O3 micro powder and 1-3 wt% of magnesia rich spinel micro powder, and additional raw materials including 0.05-0.15 wt% of organic fibers and 0.1-1 wt% of borax; the component B is formed by mixing thermally conductive silicone grease, organosilicon compounds and waste engine oil by a mass ratio of 1: 1: (3-5). When the converter bedding face repairing material is used, the component A and the component B are mixed by a mass ratio of 1: (0.04-0.08), are stirred to be in a plastic flowing shape and are fed into a hopper to be thrown into a converter, the converter body is shaken rapidly, and the repaired part is paved with the repairing material. The converter bedding face repairing material has the advantages of being good in high-temperature self-flowing performance, short in sintering time, long in service life and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of repair materials. In particular, it relates to a large surface repair material for a converter and a method for using the same. Background technique [0002] The converter is the main equipment for steelmaking production. Due to the long-term high temperature and the impact of mechanical force and slag erosion, the refractory materials on the bottom of the converter and the front and rear surfaces are easily corroded and damaged. In order to improve the life of the converter and reduce the cost of steelmaking, Usually maintenance is performed on damaged areas of the working lining of the converter. At present, the method of combining slag splashing furnace protection technology and repair gunning technology is mainly used for maintenance. [0003] At present, the repairing materials for large surfaces of converters are mainly classified according to the binders: 1. Hot repairing materials with asphalt a...

AI Technical Summary

Problems solved by technology

At present, there are problems such as black smoke emission, environmental pollution and health problems of workers when organic binders are used for repairing large surfaces of converters.