Improved smokeless environment-friendly stemming and manufacturing method thereof

Abstract

An improved smokeless environment-friendly stemming comprises, by weight, 30-50% of flint clay aggregate, 8-12% of Suzhou No.1 mud, 1-1.5% of monatomic silicon fine powder, 5-10% of andalusite, 1-3% of cerium oxide fine powder, 3-5% of zirconium-silicon micro powder, 8-15% of corundum fine powder, 5-10% of zirconite powder, 3-5% of silica powder, 8-15% of a binding agent, 0.2-0.5% of a humectant and 0.1-0.3% of a plasticizer. The improved smokeless environment-friendly stemming is simple in production process, moderate in cost, easy to operate, and compact in structure, no smoke is released inthe using process, more environmental friendliness is achieved, the scouring resistance is good, chambering is not prone to happening, opening and blocking are easy, plasticity is good, the body density is proper, the phenomena of iron clamping and iron notch breaking are avoided, baking is not needed, direct installation and use can be achieved, and the heating hardening time is short.

Description

technical field [0001] The invention belongs to the field of high-temperature refractory materials, and in particular relates to an improved smokeless and environment-friendly gun clay and a manufacturing method thereof. Background technique [0002] In recent years, with the macro-control of the state, while the iron and steel industry has decapacity, the state also requires the blast furnace to be large-scale, and resolutely banned the "ground strip steel" production enterprises and production equipment. Blast furnace steelmaking has become the mainstream production process. When the molten iron slag is discharged from the blast furnace, the blast furnace mud is filled in the taphole to maintain a sufficient depth; when the blast furnace is discharged with iron slag, the center of the blast furnace mud in the taphole is drilled out of the hole, and the molten iron slag is discharged out of the furnace through the tunnel . During the ironmaking process, the taphole of the ...

AI Technical Summary

Problems solved by technology

Bauxite is mostly used as raw material for traditional gun clay. With the increase of raw material cost, it is difficult to meet the increasingly stringent furnace requirements. Use under high temperature conditions will produce some toxic and harmful substances, which will have adverse effects on the environment

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