High-power industrial filtration system upgraded

July 12th, 2017, Published in Articles: Energize


Cement producer PPC commissioned John Thompson Air Pollution Control, ACTOM’s environmental solutions specialist, to upgrade the dust collection system serving one of the main production lines at the company’s Dwaalboom plant near Thabazimbi. The contract involved retrofitting the original electrostatic precipitator (ESP) system for the plant’s Kiln No.1 with a reverse-pulse filtration system deploying tubular bags to maintain dust emissions below 20 mg/m3. The pulse-jet conversion, erected on the roof of the former ESP system, contains over 3600 tubular filter bags with a total air-moving capacity in excess of 500 000 m3/h. The baghouse is fitted with glass-fibre tubular bags capable of withstanding temperatures of up to 260°C. The contract also incorporated the design and manufacture of a centrifugal induced draft (ID) fan for the baghouse comprising a 2700 mm diameter aerofoil impeller driven by a 1 MW motor, as well as materials handling equipment consisting of drag chains and rotary valves discharging the collected dust into an existing product conveyor.

Contact Gerard Pretorius, ACTOM John Thompson, Tel 011 478-0456, apc@actom.co.za