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Ash Drying Technology Pulverised Fuel Ash (PFA) is the fine ash produced from powdered coal during the combustion process used at coal-fired power stations. When coal is burned, the fine ash is carried out with the flue gas. This passes through electrostatic precipitators that remove these fine particles as Pulverised Fuel Ash (PFA). PFA is…

SMR testing programme – Colombian Coal Trial results Coomtech has conducted trial runs over a range of conditions accumulating numerous test runs. Results indicate consistent ability to remove surface moisture to achieve the required optimal boiler spec of upper 11.0%. Current indications are that energy costs can be maintained, assuming comparison with an 80% efficient…

Five impacts drying technologies can have on plant performance 1: Impact on milling energy costs of on-spec dry coal –  up to 25% and enabling dry improved continuous flow in certain mill designs. 2: Impact on boilers and pre-heaters –  less parasitic energy needed from boilers to pre-heat the coal for efficient clean combustion. 3:…