Abstract: This paper, by referring to steam-coal market status and higher requirements by the environmental authority for steam-coal cleaning, researches into a few of cost-effective and workable techniques, which are based on fines removing before coal washing. Through analyses in the principles and structures of core equipment and in the onsite usage of various equipment, those fines-removing-before-coal-washing techniques are preliminarily regarded as more capable than currently popular techniques, like rock removing from lump coals or full coal washing, to enhance product quality, reduce coal slime, and thus to boost the economic benefit to a steam-coal cleaning plant.

Key words: fines removing, flip-flow Screen, washer, cyclones, jig