High-temperature electric dust-removing system for flue gas of industrial kilns

Abstract

The invention discloses a high-temperature electric dust-removing system for flue gas of industrial kilns. The high-temperature electric dust-removing system comprises a shell, wherein the shell is internally provided with a plurality of groups of high-voltage electric fields, wherein each group of high-voltage electric fields comprises a plurality of dust collecting electrodes, discharging electrodes and auxiliary electrodes which are vertically distributed; the electric field is divided into a plurality of parallel channels by the dust collecting electrodes; the discharging electrodes and the auxiliary electrodes are positioned at the middle parts of the channels to form staggered distribution; the discharging electrodes and the auxiliary electrodes are arranged in a discharging electrode frame; the dust collecting electrodes are vertically arranged in a dust collecting electrode frame; the dust collecting electrode frame and the discharging electrode frame are connected with clamping grooves on a cross beam at the top part of the shell in a clamping manner and are hung on a lifting beam; and the lifting beam is suspended on a top beam of the shell by a supporting insulator. The high-temperature electric dust-removing system disclosed by the invention has the characteristics of high-temperature resistance, high dust removing efficiency, long service life, less dust re-entrainment and long-term and stable operation and the like and can be applicable to dust removal of high-temperature flue gas of the industrial kilns below 500 DEG C.

Description

technical field [0001] The invention relates to a flue gas dust removal treatment system, in particular to a high temperature electric dust removal system for an industrial kiln. Background technique [0002] In recent years, the environmental problems caused by my country's long-term resource and energy consumption-based chemical production mode have become increasingly prominent. The pollution caused by heavy chemical industry air pollutants, such as smog, acid rain, and photochemical smog, is mainly characterized by high-temperature dusty flue gas. Problems emerge one after another, and have gradually become the main form of air pollution in most parts of our country. During the 12th Five-Year Plan period, smoke and dust particles have been regarded as one of the main pollution control objects. The state has increasingly strict requirements on the emission limits of smoke and dust particles from various industrial furnaces. (GB26453-2011), "Emission Standard of Air Pollut...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a high-temperature electric dust removal system for industrial kilns, which can overcome the technical difficulty that the existing electric dust removal technology is difficult to meet the denitrification temperature requirements, and effectively improve the poisoning, wear and blockage of the SCR catalyst caused by smoke and dust problems, prolong the service life of the catalyst, improve the reliability and stability of the SCR denitrification system, and ensure that the soot and NOx concentration of the flue gas emitted by industrial kilns meet the environmental protection emission standards

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