NOVELTY - Invention relates to recovery systems. A system of recovery wet carbonaceous wastes comprises a furnace, a heat exchanger, and an ash collector, the furnace is made of fluidised bed and comprises an arched housing of refractory material with a grate bar located at a distance of 1/3 of the height of the housing in its lower part, on which the nozzle screen is located, at that the total area of nozzle holes is about 30 division 50% by area of the grate bar, and in the lower part of the furnace housing a screw discharger is mounted, and on the grate bar there is an inert carrier in the form of coarse quartz sand, and inside the boiler housing the water heating pipes are located, connected to the heat-consumer, at that the coolant is supplied to the nozzles by the blower fan connected by the heat conductor to the output of the high-temperature air heater of the heat exchanger, and in the side wall of the boiler the vortex nozzle-burner is mounted, operating on a gaseous fuel, such as biogas, supplied from the bioreactor, at that the wastes are fed from the pneumo-loading device through the spraying device formed with a tangential coolant inlet, and the chimney is located in one of the side walls of the boiler and is connected to the heat conductor to the heat exchanger, the output of which is connected to the ash collector comprising an inlet pipe, the housing, the outlet pipe, the hopper, the irrigation and spraying nozzles which are used as centrifugal nozzles for atomization of liquid, each of which comprises a housing with a vortex chamber and a nozzle, the housing is made in the form of a fitting with a hole for supplying liquid from the main line and rigidly connected to it with a cylindrical coaxial sleeve with the outer thread, and coaxially to the housing, in its lower part a nozzle is connected by the sleeve with the inner thread, formed as a second-stage centrifugal swirler in the form of a cylindrical cavity with at least three tangential inlets in the form of cylindrical holes, at that the sleeve is a part of the nozzle and is mounted coaxially and in alignment with respect the second-stage centrifugal swirler, which in the upper part is provided with a cylindrical part passing into the conical part forming an annular conical gap with the housing, and over the second-stage centrifugal swirler a vortex cylindrical chamber is mounted, which is the first stage of the liquid swirler, made in the form of a rod coaxially located in it, with the screw plate fixed on it, at that the rod is secured on three rods connected to the conical chamber, connecting the swirlers of the first and second stages, and the centrifugal swirler is mounted in the housing to form an annular cylindrical chamber for supplying liquid to the tangential inlets of the centrifugal swirler, the cylindrical cavity of which is connected to the outlet conical chamber of the nozzle.    USE - Ecology.    ADVANTAGE - Increased efficiency of energy resource-saving and flue gas cleaning.1 dwg