TUESDAY, OCTOBER 17, 1978
3
THE KWAI CHUNG INCINERATOR WILL HELP GREATLY TO MEET THIS NEED FOR WASTE DISPOSAL FACILITIES.
COLLECTION VEHICLES WILL ARRIVE AT THE INCINERATOR AND TIP THE IR LOADS INTO THE STORAGE BUNKERS. THE REFUSE WILL THEN BE LOADED BY OVERHEAD CRANES INTO THE CHARGE HOPPERS AT THE TOP OF THE PLANT.
WITHIN EACH INCINERATOR A SERIES OF MOVING GRATES WILL TAKE THE REFUSE THROUGH DRYING, IGNITING AND BURNING STAGES UNTIL IT EVENTUALLY TUMBLES INTO A ROTATING KILN WHERE FINAL
INCINERATION TAKES PLACE.
AS THE KILN ROTATES, THE REFUSE WILL BURN TO ASHES AND DROP OUT OF THE DISCHARGE END INTO SUBMERGED CONVEYORS. THIS PROCESS ALLOWS ASH TO COOL PRIOR TO TRANSPORTATION TO LAND FILL AND RECLAMATION SITES.
WHILE THIS SOMEWHAT COMPLICATED OPERATION GOES ON, THE HOT GAS FROM THE INCINERATION PROCESS PASSES THROUGH WASTE HEAT BOILERS AND THE STEAM THEN PRODUCED IS USED TO GENERATE ELECTRICITY TO OPERATE THE PLANT.
THE NEW PLANT IS THE FIRST IN HONG KONG FITTED WITH HIGH EFFICIENCY DEVICES KNOWN AS ELECTROSTATIC DUST PRECIPITATORS.
THESE DEVICES WILL REMOVE MOST OF THE DUST FROM THE FLUE GAS PRIOR TO DISCHARGE TO THE ATMOSPHERE.
THEREFORE
EMISSION FROM THE CHIMNEY WILL BE CLEAN AND THE ENVIRONMENT WILL BE PROTECTED.
14