A kind of blast furnace clay mixture

Abstract

The invention relates to a mixture of blast furnace mud. The blast furnace mud is composed of the following components in parts by weight: aluminum chrome spinel: 15-25 parts; yttrium-mullite: 5-10 parts; coal gangue raw ore : 15-20 parts; coal gangue calcined ore: 15-20 parts; composite clay: 5-15 parts; modified magnesium-iron-aluminum spinel powder; carbon resistance powder: 10-30 parts; vanadium pentoxide: 10-15 parts, asphalt powder: 5-8 parts; nanocellulose 1‑2 parts; additional binder: 12-14 parts, thickener: 5-15 parts. After using the invention, the taphole is maintained, the production of the blast furnace is normal, and the price of blast furnace clay is reduced, which saves costs for enterprises and users, and can completely change the current problems of shallow blast furnace taphole, serious pollution of blast furnace clay, and high cost.

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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