Electrostatic fabric filter

Abstract

The invention discloses an electrostatic fabric filter which comprises a front electric field area, a rear dust cleaning bag area and a demercuration device capable of adsorbing mercury in smoke. The demercuration device is arranged between the front electric field area and the rear dust cleaning bag area, a middle dust cleaning bag area is arranged between the front electric field area and the demercuration device, and the middle dust cleaning bag area is provided with a first filter bag in the horizontal direction. Through optimized design of the electrostatic fabric filter, dust collecting efficiency of the electrostatic fabric filter can be effectively improved, industrial cost is greatly lowered, and the requirements for economy, energy conservation and environment friendliness of the modern industry are met.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to an electric bag composite dust collector. Background technique [0002] With the rapid development of modern industry, especially the development of coal-fired power plants, metallurgy, mining, cement, and chemical industry, casting and other industries, it has caused serious air pollution in our country, thus restricting the development of our country's economy. In recent years, PM 2.5 The smog weather in various places caused by pollution has become one of the most important problems to be solved and controlled. [0003] Faced with the above problems, my country has officially released the "Twelfth Five-Year Plan for Comprehensive Prevention and Control of Heavy Metal Pollution". ) stipulates the emission limit value of mercury and its compounds; in addition, the country implements the total emission control system of fine particulate matter. Therefore, it is increasingl...

AI Technical Summary

Problems solved by technology

[0004] Although the electric bag composite dust collector has been widely used in the discharge of industrial purification flue gas, there are certain defects in the electric bag composite dust collector in the prior art

For example, the current electric bag composite dust collector has low dust collection efficiency when filtering high-concentration flue gas, and it is difficult to meet the national requirements for flue gas purification, and it is easy to cause heavy load work in the dust bag area and cause damage; although In the prior art, the mercury removal device is installed after the electric field area, but due to the limitation of dust removal in the electric field area, the dust concentration in the flue gas entering the post-stage purification treatment is high, so it still needs to consume a large amount of mercury in the process of mercury removal The mercury removal agent will significantly increase the cost of dust removal, and the dust removal and filtration based on the existing technology will also lead to the pollution of a large amount of recovered dust, which cannot be reused and wastes a lot of resources; in addition, the current electric bag composite dust removal device in achieving national control of fine particulate PM 2.5 When using a large amount of high-quality materials, it will lead to an increase in production costs, which is not in line with the development trend of modern economic energy conservation.

Images