Efficiency of PGDC electric filters behind a rotary furnace for firing dolomite

Conclusions Tests on electric filters type PGDC for extracting highly ohmic dolomite dust showed that when the rotary furnace is burning natural gas, and the flue gas velocity is 1.2–1.3 m/sec, the apparatus operates reliably with an efficiency of at least 90.0%When sulfurous fuel oil grade-100 (containing 3.2–3.5% sulfur) is being burned, the efficiency of the electric filter drops on the seventh day of operation to 85.6%, which is due to the appearance in the electric filter to a marked back corona. It is necessary to make further investigations to increase the efficiency of the equipment.Translated from Ogneupory, No. 3, pp. 15–17, March, 1971.