SYSTEM FOR RECYCLING WET CARBON-CONTAINING WASTES Russian patent published in 2017 - IPC B22C1/00 

FIELD: chemistry.

SUBSTANCE: system contains a boiler body, a fluidized-bed furnace, a heat exchanger and an ash collector, the furnace contains a vaulted shell of refractory material with a grate located at a distance of 1/3 of the body height from its lower part, on which the nozzle array is located. The total area of nozzle apertures is about 30÷50% of the grate area, and a screw unloader is installed in the lower part of furnace body. On the grate there is an inert carrier in the form of coarse-grained quartz sand, and inside the boiler body there are water-heating pipes connected to the heat consumer. The nozzle is supplied with a coolant from an air blower connected by a heat pipe to the outlet of a high-temperature air heater of the heat exchanger, and a vortex nozzle-burner is installed in the side wall of the boiler, operating from gaseous fuel, for example biogas coming from a bioreactor. The waste is supplied from the pneumatic loading device through a spraying device made with a tangential supply of the heat carrier, and the chimney is located in one of the side walls of the boiler and is connected by a heat pipe with a heat exchanger, the output of which is connected to the ash collector containing an inlet branch, a body, an outlet, a hopper, irrigation and spray nozzles, which are used as centrifugal nozzles for spraying liquids.

EFFECT: improving the efficiency of energy conservation and purification of flue gases.

2 cl, 2 dwg