MODULAR ENERGOTECHNOLOGICAL COMPLEX FOR PROCESSING SLUDGES FROM CONCENTRATION OF COAL AND IRON ORE Russian patent published in 2017 - IPC B03B7/00 

FIELD: technological processes.

SUBSTANCE: invention relates to processing disperse high-humidity wastes in the form of sludges obtained as the result of concentration of coal and iron ore at coal-cleaning and agglomeration-concentration plants of coal-processing and metallurgical enterprises. Modular energotechnological complex for processing sludges from concentration of coal and iron ore includes a module for processing coal sludges containing a coal sludge thickening unit, which via a thickened product discharge line is connected to a coal sludge drying unit, a module for obtaining fuel briquettes and a unit of generating energy resources by combustion of coal-water fuel, which is connected via a line to the initial coal sludge source and via thermal agent transmission channels to the coal sludge drying unit and to the module for obtaining fuel briquettes. Complex is additionally equipped with a module for processing iron ore concentration sludges and a module for obtaining prereduced briquettes. Module for processing coal sludges is additionally equipped with a unit of dry sludge dressing, which is connected to the coal sludge drying unit, to the unit of generating energy resources by combustion of coal-water fuel and to the module for obtaining fuel briquettes. Coal sludge drying unit is additionally equipped with a line connecting it with the initial coal sludge source. Module for processing iron ore concentration sludges comprises connected with the unit of dry coal sludge dressing a unit of generating energy resources by combustion of powdered coal fuel and series-connected: a unit for preparing, drying and grinding iron ore concentration sludges, a magnetic separation unit and a unit of classification, gravity and electrostatic separation. Unit for preparing, drying and grinding iron ore concentration sludges is connected to a source of iron ore concentration sludges. Module for obtaining prereduced briquettes is connected to the unit of dry coal sludge dressing and to the magnetic separation unit. Unit of generating energy resources by combustion of powdered coal fuel via thermal agent transmission channels is connected to the module for obtaining prereduced briquettes and to the unit for preparing, drying and grinding iron ore concentration sludges.

EFFECT: higher efficiency of complex processing high-moisture wastes in the form of sludges of coal and metallurgical enterprises.

1 cl, 1 dwg