Preparation method of corrosion-resistant neutral furnace lining material

Abstract

The invention relates to a corrosion-resistant neutral furnace lining material, and belongs to the technical field of furnace building equipment manufacturing. The preparation method comprises the following steps: mixing 10-20 parts by weight of quartz particles with a particle size of 5-3 mm, 10-40 parts by weight of quartz particles with a particle size of 3-1 mm, 10-35 parts by weight of quartzparticles with a particle size of 1-0.5 mm, 10-25 parts by weight of quartz fine powder with a particle size of 200 meshes, 4-20 parts by weight of silicon oxide composite silicon carbide micro powder, 50-80 parts by weight of aluminum-rich magnesia-alumina spinel aggregate and 20-50 parts by weight of aluminum-rich magnesia-alumina spinel fine powder into a mixture; adding 4-6 parts by weight ofpaper pulp waste liquid into the mixture, and uniformly mixing; and adding 0.5-2 parts by weight of an admixture, and stirring for 15-30 minutes to obtain the corrosion-resistant neutral furnace lining material. The corrosion-resistant neutral furnace lining material provided by the invention has the advantages that the prepared furnace lining is high in corrosion resistance, high in wear resistance, simple in technological process and low in production cost, and the adopted raw materials are non-toxic, harmless, environment-friendly and pollution-free.

Description

technical field [0001] The invention relates to a corrosion-resistant neutral furnace lining material, which belongs to the technical field of furnace building equipment manufacturing. Background technique [0002] At present, the bottom of the intermediate frequency induction furnace lining material in the foundry industry is severely eroded during use. The general solution is to make the bottom of the electric furnace thicker during the furnace building process. However, the bottom of the electric furnace is still the first to lose during use, and the upper part of the electric furnace will not suffer much loss. Therefore, after repeated repairs, The loss of the lower part of the induction furnace is still much higher than that of the upper part, and the upper part of the electric furnace is not used and discarded, so that the circuit lining material is not maximized. [0003] The existing lining materials for intermediate frequency induction furnaces for smelting carbon ...

AI Technical Summary

Problems solved by technology

Although quartz has a high melting point (1713°C), at different temperatures, quartz can undergo crystal transformation, which reduces the corrosion resistance of the lining material and further aggravates the erosion of the furnace substrate.