Furnace gas dust remover for sealed electric furnace

Abstract

The invention discloses a furnace gas dust remover for a sealed electric furnace. The furnace gas dust remover is used for cooling and purifying furnace gas of the sealed electric furnace and comprises a casing (1), wherein a plurality of filtration chambers (7) in longitudinal arrangement are formed in the casing (1), and a high temperature resistant filtration device (8) and a heat reclaiming device (9) are arranged in each of the filtration chambers (7); the furnace gas flows through the filtration chambers (7) in the casing (1), the high temperature resistant filtration devices (8) in the filtration chambers (7) are used for filtering the furnace gas, and the heat reclaiming devices (9) are used for reclaiming heat of the furnace gas. The furnace gas dust remover for the sealed electric furnace disclosed by the invention is safe to use, compact in arrangement, and small in occupied space, and can effectively reclaim the heat of the furnace gas.

Description

technical field [0001] The invention relates to a furnace gas cooling and purification device in the field of environmental protection technology, in particular to a furnace gas cooling and purification device used in a closed electric furnace in the ferroalloy industry. Background technique [0002] At present, the furnace gas treatment method in the furnace gas purification system of the ferroalloy closed electric furnace is the form of three-stage natural cooler + explosion-proof bag filter. The cooler and explosion-proof bag filter are the core equipment of the furnace gas purification system. [0003] In the actual operation process, the existing ferroalloy airtight electric furnace gas purification system has the following problems: 1) The bag filter material of this type of bag filter is generally used as the film-coated filter material of Flumes, which can only withstand temperature 250°C, when the gas volume of the electric furnace fluctuates greatly, the bag is eas...

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Problems solved by technology

[0003] In the actual operation process, the existing ferroalloy airtight electric furnace gas purification system has the following problems: 1) The bag filter material of this type of bag filter is generally used as the film-coated filter material of Flumes, which can only withstand temperature 250°C, when the gas volume of the electric furnace fluctuates greatly, the bag is easy to be burned; 2) The heat in the high calorific value furnace gas is dissipated to the outside through the cooler, and cannot be recycled, resulting in a waste of energy, which does not meet the national energy saving requirements Policy; 3) The number of coolers and bag filter equipment is large, and the area is large

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