A corex smelting reduction ironmaking equipment

Abstract

The invention discloses a COREX melting reduction ironmaking device comprising a reduction shaft furnace and a melting gasification furnace. The reduction shaft furnace is internally provided with a first spiral vibration plate and a second spiral vibration plate which are arranged in a double-spiral structure. The lower end of the first vibration motor runs through the top of the reduction shaftfurnace and is fixedly connected with the first spiral vibration plate through a vibration transmission rod. The upper part of the first spiral vibration plate and the upper part of the second spiralvibration plate are each provided with air permeable holes; the lower end of a first feed tube is arranged just above the upper end of the first spiral vibration plate, and the lower end of a second feed tube is arranged just above the upper end of the second spiral vibration plate. Compared with conventional design of a folded fluidized reduction bed, with the first spiral vibration plate and thesecond spiral vibration plate arranged in the double-spiral structure, the device more easily controls the material dropping speed, so that a material can make full contact with reducing gas, spongeiron is formed quickly, and subsequent processing is convenient.

Description

technical field [0001] The invention relates to the technical field of ironmaking, in particular to a COREX smelting reduction ironmaking equipment. Background technique [0002] The Corex smelting reduction method is a non-coking ironmaking technology developed by voestalpine, and it is also the only smelting reduction technology that has achieved industrialization. Ironmaking through Corex smelting reduction will be used as a front-end process for steel companies to produce molten iron for the steelmaking process. The use of this process to replace the traditional blast furnace smelting process is of great significance for iron-making and steel-making enterprises to reduce iron-making costs, improve economic and technical indicators, and enhance process competitiveness. [0003] The fluidized bed reduction device used inside the reduction shaft furnace of the existing Corex smelting reduction method, during the reaction, the speed of the blanking is difficult to control, ...

AI Technical Summary

Problems solved by technology

[0003] The fluidized bed reduction device used inside the reduction shaft furnace of the existing Corex smelting reduction method, during the reaction, the speed of the blanking is difficult to control, the speed is fast, and it is not easy to completely react, and the slow speed will affect the production efficiency and waste Reducing Gas and Heat

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