The main technical problems of electrostatic fabric filters’ transformation
Date：2015-12-10 Source：zk corp Views:
As for most horizontal precipitator, flue gas gets into the electrostatic precipitator parts, flue gas flows horizontally, reserving one or two electric field not change the direction of airflow. However, in regard to bag dust remover, flue gas should flow through the filter bags from the bottom to up, discharged into the upper air cleaning chamber from the internal filter bags. Adopting appropriate measures to let the electric field distribution not be changed when redirecting the air flow.
Flue gas’ performance should meet the operational requirements of the electrostatic and bag precipitator. Flue gas’chemical composition, temperature, humidity have great influence on dust resistivity, largely affecting the dust collection efficiency of electrostatic precipitator parts. So under possible condition, operators should do quality-oriented treatment of the flue gas, thus improving the dust collection efficiency of the electrostatic precipitator.
The flue gas temperature of dust remover parts is generally less than 200 ℃, and more than 130 ℃ (anti-condensation paste bag).
In the same cabinet, the technical parameters of the electric field should be correctly determined, and correctly select the bag dust remover. Various technical parameters of the bag remover. When old electric precipitators are transformed, it is often limited by the size of the original shell body, the problem is very prominent. As for the "electric - bag" dust collection, the majority of the dust has been trapped in the electric field.
The dust into the bag dust collection parts, concentration portion, dust fineness and dispersion of dust are greatly different from the dust originally into the dust remover. Under such conditions, filtration velocity and other parameters must be seriously treated with the change.
How to make the import and export pressure of pressure (ie resistance) of dust removers lower than 1000Pa. The size of the dust removers’ resistance directly affects the size of the power consumption, so choosing the correct gas path design is the main way to reduce the pressure difference.
