Smelting furnace

Abstract

The invention relates to a smelting furnace comprising refractories, thermal insulation materials, a fan, a pipeline, a valve, an ignition hole, a fuel supply device and a temperature measurement device. A furnace chamber is provided with a heating chamber and a smelting chamber; the lower part of the heating chamber is communicated with the smelting chamber; the lower part of the smelting chamber is provided with a hearth; the hearth is provided with a hearth discharge hole; the upper part of the heating chamber is provided with a heating chamber feeding hole; the upper part of the heating chamber is provided with a heating chamber gas outlet; a plurality of flame paths are arranged around the inner wall of the smelting chamber; the side walls of the flame paths are provided with a plurality of inlet channels; and the inlet channels are communicated with the fire paths. The invention saves energy and protects the environment, does not need coke when in ironmaking, can use various fuels and raw coal, synchronously completes ironmaking and steelmaking without disposing steel slag, sufficiently utilizes the heat generated by the steelmaking, carries out uniform treatment on waste gas, can be used for directly carrying out ironmaking, iron casting, steelmaking and steel casting by using ore and the like, can be used for producing glass, ceramic frits, sodium silicate and the like, can use various materials, such as the ores, mineral powder and the like, can synchronously extract noble elements, can realize refining and can bring material revolution.

Description

technical field [0001] The invention relates to the fields of metallurgy and kiln equipment such as blast furnaces, cupolas, smelting furnaces, reverberatory furnaces, and melting furnaces, in particular to a smelting melting furnace. Background technique [0002] Existing blast furnaces, cupolas, smelting furnaces, reverberatory furnaces, melting furnaces, etc. generally have exhausted flue gas temperatures that are too high, heat energy utilization rate is low, energy consumption is large, and pollution is serious. Coke must be used in blast furnaces and cupolas. Coke resources are limited and expensive. Coke production pollutes the environment and increases energy consumption. During the use of the cupola, the flue gas rises to the sky, causing serious pollution. A large amount of blast furnace gas is produced in the blast furnace production. If it is not used properly, it will inevitably lead to a large amount of energy waste. Blast furnace gas utilization equipment req...

AI Technical Summary

Problems solved by technology

The carbon monoxide content in the cupola flue gas is also high, and the flue gas temperature is very high, all of which bring a lot of energy waste

Blast furnace ironmaking requires preprocessing of raw materials such as ore sintering and pelletizing, which increases energy consumption and expenditure; it cannot directly use low-grade ore raw materials, which increases raw material costs and cannot make full use of resources; precious metals in ores cannot be extracted, resulting in waste of resources

Ironmaking and steelmaking cannot be completed simultaneously, and molten iron transfer and secondary blowing are required, which increases smelting costs; steel slag treatment is also troublesome, increasing steelmaking costs

Glass furnaces, ceramic frit furnaces, and sodium hydroxide furnaces generally have defects such as high energy consumption and insufficient environmental protection.

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