Blast furnace taphole clay mixture

Abstract

The invention relates to a blast furnace taphole clay mixture. The blast furnace taphole clay mixture comprises the following components in parts by weight: 15-25 parts of aluminum-chrome spinel, 5-10 parts of yttrium mullite, 15-20 parts of coal gangue raw ore, 15-20 parts of coal gangue calcined cooked mine, 5-15 parts of composite clay, 10-30 parts of magnesia-hercynite powder, 10-30 parts of carbon resistance material powder, 10-15 parts of vanadic oxide, 5-8 parts of asphalt powder, 1-2 parts of nano-cellulose, 12-14 parts of an additional binding agent, and 5-15 parts of a thickening agent. Through the adoption of the blast furnace taphole clay mixture, a tapping hole is maintained, the production of a blast furnace is normal, and the taphole clay price is reduced, so that the cost is reduced for both an enterprise and a user, and the problems that a blast furnace front taphole becomes shallow, the taphole clay is polluted seriously and the cost is high in the prior art are completely solved.

Description

technical field [0001] The invention belongs to the field of refractory plastics for blast furnace ironmaking, and in particular relates to a blast furnace clay mixture. Background technique [0002] The blast furnace is the main equipment for smelting pig iron. After the iron smelting in the blast furnace is completed, the molten iron is released from the taphole. In order to ensure the continuous smelting, the taphole must be blocked. The material that blocks the taphole is called gun mud. However, during long-term use, the taphole will be corroded, and the taphole will be reamed, resulting in shallow taphole, unstable iron flow, unclean iron, or even large flow, which seriously affects the normal production. Iron, and ultimately affect the service life of the blast furnace and the growth of output. The iron mouth is located inside the furnace, and the temperature is high. Under normal circumstances, people cannot enter and maintain it. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

However, during long-term use, the taphole will be corroded, and the taphole will be reamed, resulting in shallow taphole, unstable iron flow, unclean iron, or even large flow, which seriously affects the normal production. Iron, and ultimately affect the service life of the blast furnace and the growth of production

The iron mouth is located inside the furnace, and the temperature is high. Under normal circumstances, people cannot enter the furnace for maintenance.

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