Electrostatic Precipitators
Various designs of “Progress” electrostatic precipitators have proved themselves in many industrial sectors and can be operated in wide range of temperature and pressure parameters.
The pressure losses of electrostatic precipitators are negligibly small and consequently the power consumption for the gas passage through electrostatic precipitator is minimal.
Advantages of electrostatic precipitators:
– Efficient application for almost all industrial technological processes;
– Stabile and efficient catching of the particles with the size – 1 microne;
– Minimum power consumption for gas pass;
– Electrostatic precipitator is tolerant to considerable deviations of the operating condition and modes.
– Caught material maintains its original state;
– High reliability and long life time of electrostatic precipitator units, easy maintenance and short main technological aggregate standing period for maintenance;
– Durability and long life time in severe application.
– Electrostatic precipitator can be modernized in such a way that existing building structures will remain unchanged.
Horizontal filters with electrodes height from 4 to 12 meters and with interelectrode clearance from 300-400 mm and more are the most widely used.
Capacity of such apparatuses is from few thousand m3/h up to a half million m3/h.
The technical features of electrostatic precipitators includes:
– The use of mechanical elastic foundations needle corona electrodes with a low ignition voltage of the coro¬na, as well as the optimum height (20 mm) and pitch (50 mm) needle;
– “Semi-rigid” binding in the electrodes of the elastic belt needle elements that provide higher current density of crown and the degree of agitation;
– The application of broadband plate collecting elements (such as “ETI-640″ or «S-350”) with a minimum proportion of indoor and the maximum proportion of outdoor surfaces of electrodeposition, optimized rigidity and non-uniformity of the electric field of the crown;;
– Configuration of “turn – offset” schemes of discharge electrode placement with respect to sedimentation with preservation of equal bit intervals, which provides nearly twice times extension of the maximum field strength in the direc¬tion of the progress of gas in each individual gas passage and accordingly, a significant increase in fine particle drift velocity.