Also at the request of the Fire Services Department this Office was required to provide emergency lighting at the Kotewall Road disaster site. The Office co-operated throughout the year with the various practice crash exercises held by the Civil Aviation Department.
PLANT OPERATION
Incineration Plants, Abattoirs and Compost Plant
8.43 The Kennedy Town Incineration Plant operated continuously throughout the year until 1st March, 1973 when it was shut down for overhaul, the first in two years. Prior to the shut-down certain modifications and replacements of machinery were carried out with a resulting improvement in burning. Both boilers were surveyed at the beginning of the year. During the shut-down major work was carried out on renewing the whole of the top of the cold gas duct, a large section of the division plate, all deflector vanes and forced draught inlet dampers, and the refractory in the hot gas duct. In the incinerator units the only major repairs were the renewal of all incinerator bye-pass arches. Both waste heat boilers were opened up, cleaned internally and externally, all mountings refitted and the boilers surveyed. At the end of the year the overhaul was continuing on all ancillary machinery including cranes, conveyors, fans etc. Refuse burnt during the year amounted to 184,850 tons. In addition to routine maintenance 990 mechanical and 359 electrical repairs were carried out. The use of the high pressure water jet cleaner has brought about a saving in the time taken on cleaning the grit collector and the external parts of the boiler and in addition a far better cleaning has been achieved.
8.44 The Lai Chi Kok 'A' Incineration Plant was shut down for two weeks in January 1973, otherwise it, too, operated continuously throughout the year. Modifications to boiler superheaters were completed early in the year and the turbo-alternator put on load. Modifications to the cooling system are under review due to the blockage, by pollution, of the sea water strainers and condenser tubes of this unit. In order to prolong their life the superheater tubes have been sprayed with a ceramic coating. An evaluation of this coating was continuing at the end of the year. Refuse burnt during the year amounted to 220,690 tons. In addition to routine maintenance 705 mechanical and 75 electrical repairs were carried out.
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Also at the request of the Fire Services Department this Office was required to provide emergency lighting at the Kotewall Road disaster site. The Office co-operated throughout the year with the various practice crash exercises held by the Civil Aviation Department.
PLANT OPERATION
Incineration Plants, Abattoirs and Compost Plant
8.43 The Kennedy Town Incineration Plant operated continuously throughout the year until 1st March, 1973 when it was shut down for overhaul, the first in two years. Prior to the shut-down certain modifications and replacements of machinery were carried out with a resulting improvement in burning. Both boilers were surveyed at the beginning of the year. During the shut-down major work was carried out on renewing the whole of the top of the cold gas duct, a large section of the division plate, all deflector vanes and forced draught inlet dampers, and the refractory in the hot gas duct. In the incinerator units the only major repairs were the renewal of all incinerator bye-pass arches. Both waste heat boilers were opened up, cleaned internally and externally, all mountings refitted and the boilers surveyed. At the end of the year the overhaul was continuing on all ancillary machinery including cranes, conveyors, fans etc. Refuse burnt during the year amounted to 184,850 tons. In addition to routine maintenance 990 mechanical and 359 electrical repairs were carried out. The use of the high pressure water jet cleaner has brought about a saving in the time taken on cleaning the grit collector and the external parts of the boiler and in addition a far better cleaning has been achieved.
8.44 The Lai Chi Kok 'A' Incineration Plant was shut down for two weeks in January 1973, otherwise it, too, operated continuously throughout the year. Modifications to boiler superheaters were completed early in the year and the turbo-alternator put on load. Modifications to the cooling system are under review due to the blockage, by pollution, of the sea water strainers and condenser tubes of this unit. In order to prolong their life the superheater tubes have been sprayed with a ceramic coating. An evalution of this coating was continuing at the end of the year. Refuse burnt during the year amounted to 220,690 tons. In addition to routine maintenance 705 mechanical and 75 electrical repairs were carried out.
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