METHOD FOR THERMAL PROCESSING OF SLATE COAL WITH PRODUCTION OF LIQUID AND GASEOUS FUEL AND ALSO CEMENT CLINKER AND FACILITY FOR ITS EMPLOYING

摘要

FIELD: oil and gas industry.;SUBSTANCE: invention refers to thermal processing of slate coal and can be employed in slate coal processing industry, power engineering, for production of chemical raw material, liquid and gaseous power carriers, for production of cement, concrete, and also in agriculture. Method incorporates crumbling, drying of fine-grain slate coal (0-15 mm) with smoke fumes in a dryer of aero-fountain type, mixing of slate coal with a solid heat carrier for heating to temperature of pyrolysis and pyrolysis in a reactor with formation of a steam-gaseous mixture of pyrolysis products, directed to condensation, and mineral residue of pyrolysis. Part of organics of the mineral residue is burned in aero-fountain process fire chamber at temperature of de-carbonization not lower, than 900-1000°C and coefficient of circulation of a solid heat carrier 2-3 followed with formation of aero-suspension of hot smoke fumes and de-carbonized ashes. A required amount of ashes is separated from smoke fumes in a divider, the said ashes as a solid heat carrier are directed to mixing with slate coal. The excess of ashes, separated in the cyclone from hot smoke fumes is supplied together with added de-carbonised lime with additives into a mixer of the clinker charge and further for burning of cement clinker into a cement furnace. Following afterburning in an exhaust-heat boiler hot smoke fumes are directed into dryer of aero-fountain type for drying of slate coal.;EFFECT: production of liquid fractions with low contents of mechanical impurities and production of cement clinker.;5 cl, 1 ex, 2 dwg