METHOD OF THERMAL NEUTRALISATION OF MUNICIPAL WASTE IN MELTED SLAG AND FURNANCE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC F23G5/00 F27B15/10 F27B1/16 B09B3/00 

FIELD: technological processes.

SUBSTANCE: in the method of thermal neutralisation of solid municipal waste in a melted slag including loading of a prepared charge to the working chamber, burning it with formation of a melted slag bath, bubbling the melt with natural gas combustion products through submerged lances, discharging smelting products and cleaning gases after thermal decomposition of the charge, the thermal detoxification of waste is carried out directly in the bath of melted slag due to loading of the charge directly to the level of the melted slag bath and the supply to the melt of the air, preheated to 500°C, with an excess air ratio of α≤1.3 through lances located on the side walls of the working chamber, while the temperature of the slag bath is maintained in the interval of 1400-1600°C, the natural gas is combusted in the removable furnace chambers under α≤0.9, where the combustion products of the natural gas for bubbling of the slag bath and maintaining its tempreture are supplied for the melt level through the nozzles, mounted in the furnace chambers, disposed on the side walls of the working chamber in the staggered order against the nozzles, located on the opposite wall. The furnace for implementating the method comprises a caissonized working chamber equipped with remote combustion furnaces and lances for supplying air to the melt, which are disposed on the side walls above the nozzles of the removable combustion furnaces; the nozzles of the removable combustion furnaces are disposed on opposite side walls of the working chamber in a staggered order against each other; the upper parts of the side walls of the working chamber are inclined; and the loading device is disposed above the level of the axes of the combustion chambers outlet nozzles at a distance no more than 40 diameters of the outlet section of the combustion chamber nozzle.

EFFECT: simplified preparation technology of materials for processing.

14 cl, 1 dwg, 9 tbl