WASTE DISPOSAL PLANT Russian patent published in 2023 - IPC F23G5/27 

FIELD: waste disposal.

SUBSTANCE: invention relates to a plant for waste disposal, power generation, flue gas filtration and cleaning of slag and ash from harmful impurities. The waste disposal plant comprises a grate-type thermoreactor, an afterburner, a heat exchanger, and a flue gas cleaning device. The thermoreactor is functionally divided into three zones: the above-grate zone, located in the upper part of the thermoreactor, in which pyrolysis gases are formed, the fluidized-bed zone near the grate, and the under-grate zone under the grate. The under-grate zone is a combustion chamber of the thermoreactor, while the thermoreactor is equipped with a pyrolysis gases smoke exhauster, made in the form of a gas outlet, located outside the thermoreactor, communicated on one side with the above-grate zone of the thermoreactor, and on the other side with the combustion chamber of the thermoreactor. The plant contains a steam boiler, a device for utilizing ash and harmful slag impurities, and a steam power plant. The heat exchanger is made in the form of a gas-air heat exchanger. The flue gas cleaning device is made in the form of a cyclone and a wet scrubber connected in series and interconnected, equipped with a gas outlet of the cleaned flue gases to the atmosphere. The thermoreactor, afterburner, steam boiler, heat exchanger, flue gas cleaning device are mounted on a rigid frame and rigidly fixed relative to it. The outlet of the thermoreactor, made in its under-grate zone, is in communication with the inlet of the afterburner, the outlet of which is in communication with the inlet of the steam boiler, the first outlet of which is in communication with the inlet of the heat exchanger, the first outlet of the heat exchanger is in communication with the inlet of the cyclone, in communication with the scrubber, the scrubber outlet is in communication with the waste disposal device impurities of slag and ash, the second outlet of the heat exchanger is in communication with the zone of the fluidized bed of the thermoreactor. The thermoreactor in the upper part is configured to communicate with the waste loading device. In the under-grate zone of the thermoreactor, the destruction of the burning gases is ensured. The combustion chamber of the thermoreactor, located under the grate, communicates with the second input of the device for utilizing harmful impurities of slag and ash, the second output of the steam boiler communicates with the steam power plant installed on the frame and rigidly connected to it. Above the heat exchanger there is an air fan designed for external cooling of the air flow from the heat exchanger to the thermoreactor. The fan is rigidly fixed relative to the frame.

EFFECT: increase in productivity and simplification of the design of the plant for waste disposal while improving the safety and environmental friendliness of the recycling process, reducing the overall dimensions of the plant, expanding its functionality.

9 cl, 5 dwg, 3 tbl