Abstract
Abstract In the producing of Missouri-Kansas steam coals, there always have been certain undesirable qualities, the reduction of which would materially improve the quality of the coal; namely, high ash, high sulphur, low fusion temperature, excessive moisture, and inconsistent quality. While these undesirable qualities exist in most coals, the character of the local coals and the mining method (mostly strip pitting) make them more evident in these fields. The effort put forth in recent years to improve the quality and the results obtained are briefly covered in this paper. During the past 25 years improvements have been made to reduce various operating problems and to increase boiler-room efficiency. The major improvements made in this field and the actual results obtained are also covered.
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