Submerged arc furnace smoke residual heat utilization method of dust remover with exhaust cylinder

Abstract

The invention discloses a submerged arc furnace smoke residual heat utilization method of a dust remover with an exhaust cylinder. The method is characterized in that exhaust smoke in a submerged arcfurnace is exhausted out through a fourth hole, and cold air is mixed into the exhaust smoke through a water cooling sliding sleeve, carbon monoxide gas is combusted, obtained smoke enters a combustion settling chamber, and according to the action of the combustion settling chamber, the smoke flow speed is reduced, large-particle dust carried in smoke is subject to sedimentation, cold air is properly mixed in, finally, carbon monoxide gas is burnt off, the smoke passing through the combustion settling chamber enters a heat storage temperature uniformity device, the heat storage temperature uniformity device comprises a smoke inlet, a carbon iron composite material heat storage body, a sound wave ash clearing device, a smoke outlet and an ash bucket; the carbon iron composite material heatstorage body is arranged between the smoke inlet and the smoke outlet, the sound wave ash clearing device is arranged in the carbon iron composite material heat storage body in a segmented manner. The dust remover is provided with the exhaust cylinder, steel consumption amount of the exhaust cylinder and civil engineering investment are reduced, running electric consumption is reduced, and the running cost of a dust removal system can be reduced.

Description

technical field [0001] The invention relates to a method for utilizing the waste heat of the submerged arc furnace flue gas with a dust collector equipped with an exhaust tube, specifically, it can maximize the recovery of the heat energy in the flue gas and convert it into high-grade electric energy, and can improve the dust removal ability. The invention belongs to the technical field of submerged arc furnace dedusting. Background technique [0002] At present, waste heat utilization facilities are usually used: water tube waste heat boiler, regenerative waste heat boiler to recover the waste heat of the flue gas of the submerged arc furnace, and generate saturated steam, etc. Because the flue gas temperature of the submerged arc furnace fluctuates violently and the dust content is large, it is difficult for the ordinary water tube waste heat boiler to be used for the waste heat recovery of the flue gas of the submerged arc furnace. At present, the regenerative waste heat...

AI Technical Summary

Problems solved by technology

[0004] When the dust collector and the exhaust tube are arranged separately, generally the fan is placed next to the dust collector, and the exhaust tube is placed next to the fan. The connecting pipes have high investment costs, large floor space, high resistance and high power consumption.

Images