Abstract
The system has been fitted to two 905 kg/h steam boilers at a mine in Fife and has run for approximately two years. It consists of a pneumatic system for conveying coal, automatically, from the coal store to the main boiler hopper and an integral system for conveying ash away from the boilers, all to a programmed cycle of operations. The paper describes the plant in detail, experience in operation and reports on the results of tests on fuel degradation, pressure loss and air-flow measurements, performance of the coal- and ash-handling sections, plant wear and electrical running costs, in addition to other data.
It concludes that continuing the development of coal-fired plant along the lines laid down in the paper could lead to packaged, shell and large sized industrial water-tube plant, which are low in capital and running costs and are automated in line with modern oil- and gas-fired plant.
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