我厂原有三台LSG0.2—5型立式水管锅炉,炉型落后,采用固定安排自然通风,手工操作。排烟温度高达600℃,灰渣含碳量高于15％,热效率低于50％,烟囱冒黑烟污染严重。 为提高锅炉效率,消烟除尘,改善环境,1982年底着手将这三台锅炉改为抽板顶升反烧炉,目前已有两台投入运行。从运行情况和测试结果看,改装后锅炉的热效率为64.5％,烟气余热器效率为8％,系统总效率达到71.5％,排烟温度降到 I plant the original three LSG0.2-5 vertical water tube boiler, furnace behind, the use of fixed arrangements for natural ventilation, manual operation. Exhaust temperature as high as 600 ℃, carbon content of ash is higher than 15%, thermal efficiency of less than 50%, black smoke chimney pollution. In order to improve boiler efficiency, eliminate smoke and dust, and improve the environment, the three boilers were started to be upgraded to suction-plate top-lift furnaces by the end of 1982. At present, two units have been put into operation. From the operation and test results, the thermal efficiency of the modified boiler is 64.5%, the efficiency of the flue gas heater is 8%, the total system efficiency reaches 71.5%, the exhaust gas temperature drops to