An energy-saving and environment-friendly metallurgical rotary hearth furnace flue gas heat exchange device

Abstract

The invention provides an energy-saving environment-friendly flue gas heat exchange device of a metallurgic rotary hearth furnace and relates to the field of metal smelting in heavy industry. The invention aims to solve the problems of low recycling ratio and metallic chips and CO in flue gas directly discharged into air of the present flue gas heat exchange device of the metallurgic rotary hearthfurnace. The energy-saving environment-friendly flue gas heat exchange device of the metallurgic rotary hearth furnace comprises anti-sliding anchors, a bearing bracket, a controller, a metallurgic furnace chamber, a flue gas discharging mechanism and a feeding port. After the flue gas heat exchange device is improved, backflow of flue gas can be realized, so that waste can be recycled and the energy-saving purpose can be achieved; and meanwhile, the metallic chips flying along with flue gas can be separated by a centrifugal force generated by a centrifugal dedusting device and then fall intothe metallurgic furnace chamber, so as to guarantee the metallurgic rate of the rotary hearth furnace; due to the design of multilayer filtering of plate-fin clapboards, environment-friendly emissionof flue gas can be realized and improvement of working environment of workers can be benefited.

Description

technical field [0001] The invention relates to the technical field of energy saving and environmental protection, in particular to an energy-saving and environment-friendly metallurgical rotary hearth furnace flue gas heat exchange device. Background technique [0002] Rotary hearth furnace is widely used, mainly used in metal smelting in heavy industry, its internal temperature can be as high as over 1,000 degrees, and flue gas will be generated during the smelting process. Heat exchange treatment. Although the rotary hearth furnace technology for metallurgy is becoming more and more perfect, there are still the following problems to be solved urgently: [0003] 1. The rotary hearth furnace consumes a lot of energy during operation, and the exhausted flue gas contains a lot of heat energy, but the heat exchange treatment still wastes most of the heat energy, and the temperature of the exhausted flue gas is still high, which increases the physiological burden of the staff....

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an energy-saving and environment-friendly metallurgical rotary hearth furnace flue gas heat exchange device, which solves the problem of low recycling rate and flue gas heat exchange rate of the existing metallurgical rotary hearth furnace flue gas heat exchange device. Gold filings and CO will be released into the air

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