Smelting furnace for smelting reduction

Abstract

The invention relates to a smelting furnace for smelting reduction, which is designed to be mainly used for solving the problems that an existing smelting furnace for smelting reduction is high in production cost and the like. The smelting furnace comprises a base, wherein a reduction furnace body is mounted on the base; a cooling water pipe is arranged in a furnace cover connected with the top of the reduction furnace body; the upper part of a feeding pipeline is fixed on a feeding supporting rack; the lower end of the feeding pipeline extends into a feeding inlet in the furnace cover; an oxygen lance crossarm is also arranged on the feeding supporting rack; an oxygen lance is arranged on the oxygen lance crossarm and extends into the reduction furnace body from the furnace cover or the side wall of the reduction furnace body; an electrode crossarm is fixed on an electrode supporting rack; an electrode is connected onto the electrode crossarm and extends into the reduction furnace body; the rear end of an electrode network cable is connected with an external transformer; the front end of the electrode network cable is connected with the electrode through the electrode crossarm; the tail end of a coal gas discharging pipeline is communicated with a coal gas discharging outlet in the furnace cover; a coal injection gun, a water outlet and a slag outlet are formed in the side wall of the reduction furnace body; the end of a coal injection opening of the coal injection gun extends into the reduction furnace body. The smelting furnace provided by the invention has the advantage of low production cost.

Description

Technical field: [0001] The invention relates to the technical field of iron and steel smelting, in particular to a smelting reduction smelting furnace. Background technique: [0002] The smelting reduction ironmaking process uses electricity or oxygen or coal to reduce and melt vanadium-titanium iron ore powder to separate steel, iron and vanadium-titanium. At the same time, the gas and heat generated in the reduction process are used to supply raw materials for drying and rotary hearth furnaces and iron cars. Bottom tunnel furnace for power generation and heating. The existing smelting reduction furnaces use electricity for smelting reduction, and some use coal as fuel for smelting reduction. The disadvantages of using electricity for smelting reduction are high production costs, long smelting time, and low output; coal is used as fuel The disadvantages of smelting reduction are slow heating speed, low output and polluting the environment. Invention content: [0003] T...

AI Technical Summary

Problems solved by technology

The existing smelting reduction furnaces use electricity for smelting reduction, and some use coal as fuel for smelting reduction. The disadvantages of using electricity for smelting reduction are high production costs, long smelting time, and low output; coal is used as fuel The disadvantages of smelting reduction are slow heating, low output, and environmental pollution.

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