Blast furnace pressure equalization release gas recovery equipment

Abstract

The invention discloses a blast furnace gas equalization and release gas recovery device, which includes a blast furnace gas recovery component and a material tank gas recovery component; the blast furnace gas recovery component includes a first recovery tank, the inlet of the first recovery tank communicates with the blast furnace through a pipeline, and the second The outlet of a recovery tank is connected to the gas pipeline network through a pipeline; the gas recovery assembly of the material tank includes a second recovery tank, the inlet of the second recovery tank is connected to the material tank through a pipeline, and the outlet of the second recovery tank is connected to the first recovery tank through a pipeline. A recovery tank is connected; both the first recovery tank and the second recovery tank are equipped with a strong discharge device and a filter device. The present invention can realize gas recovery synchronously, overcomes the problems existing in the prior art such as high dust content of recovered gas, large pressure fluctuations, pollution to clean gas pipe network, etc., and avoids a large amount of toxic gas discharge and dust pollution at the same time; the equipment structure is simple , reduce noise, and can recycle blast furnace equalizing gas without consuming a lot of energy such as water and electricity, and the recycling cost is low.

Description

technical field [0001] The invention relates to the technical field of blast furnace engineering equipment, in particular to a device for recovering blast furnace pressure-equalized and diffused gas. Background technique [0002] The blast furnace is made of steel plate as the furnace shell, and the shell is lined with refractory bricks. Due to the good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor production efficiency, and low energy consumption, the iron produced by this method accounts for the vast majority of the world's total iron production. During blast furnace production, iron ore, coke, and flux (limestone) for slagging are loaded from the top of the furnace, and preheated air is blown in from the tuyeres located at the lower part of the furnace along the periphery of the furnace. At high temperature, the carbon in coke (some blast furnaces also inject auxiliary fuels such as pulverized coal, hea...

AI Technical Summary

Problems solved by technology

Although the existing pipelines and related equipment layout can realize the recovery of part of the blown gas from the blast furnace, but due to the complicated layout of these pipelines and equipment, the cost of initial investment and later maintenance is too high, which is not conducive to the existing blast furnace equipment. Renovation; moreover, a large amount of electricity and water are consumed during operation, and additional air blowing equipment is required for dry dust removal, which is a heavy burden for existing enterprises and limits the development of the steel industry

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