INCINERATOR FURNACE POWER CONTROL METHOD Russian patent published in 2000 - IPC

FIELD: power control of incinerator furnaces and environment control. SUBSTANCE: grate 1 is furnished with several undergrate blast zones 7.1- 7.5; one of them (say, 7.2) has at origin of main flame space appropriate measuring devices, that is, temperature sensor 17 and pressure sensor 19, as well as appropriate air supply pipeline, say, 8.2 provided with flowmeter 18. Combustion space 3 incorporates additional pressure sensor 20 for determining difference in static pressures within undergrate blast zone and combustion space. Values measured by this instrument are passed to central computer unit ZR which yields, if necessary, control signal R including flow factor α and sends it to control device RE coupled with various actuating units 21-24 to control grate rabbling speed, amount of slag discharged, and, if necessary, amount of air supplied to separate undergrate zones. EFFECT: provision for controlling furnace power to ensure desired steam output and to reduce toxicity of exit gases. 6 cl, 3 dwg