METHODOLOGY OF DRY CONCENTRATION BEFORE COMBUSTION AND SYSTEMS FOR IMPROVEMENT OF SOLID FUEL CHARACTERISTICS Russian patent published in 2009 - IPC C10L9/00 

FIELD: chemistry.

SUBSTANCE: ordinary solid fuel for concentration is obtained; one or several characteristics of ordinary solid fuel selected from following: moisture content (BTU/pound), ash content (%,) total sulphur content (%), content of different sulphur forms (%), content of volatile materials (%), content of bound carbon (%), Hardgrove grindabillity index, mass content of trace minerals and reaction of fuel and its components to electromagnetic radiation are measured; the characteristics of the fuel expectable from solid fuel after its concentration are determined. Relying on desired moisture content in solid fuel at least one working parametre of the system and one configuration parametre leading to obtaining of solid concentrated fuel with desired moisture content are selected; the solid fuel is concentrated by the way of its electromagnetic radiation in accordance with at least one aforementioned parametre; the selected parametre is modified in response to data of moisture content in solid fuel during concentration.

EFFECT: obtaining of new family of solid-fuel custom coals being absent in nature.

17 cl, 16 dwg