为充分利用各地燃料资源,工业锅炉必须适应多种煤,特别是劣质煤的燃烧要求。成都锅炉厂根据一机部下达的任务,试制了DZW2—8型燃用Ⅰ类烟煤往复炉排锅炉,于1978年11月安装完毕,投入运行。DZW2—8型锅炉,系卧式三回程具有阶梯形往复炉排的锅炉,烟气经45根和33根Φ63.5×4烟管及空气预热器由烟囱 In order to make full use of fuel resources everywhere, industrial boilers must be adapted to the combustion requirements of many types of coal, especially poor quality coal. According to the task assigned by a machine department, Chengdu Boiler Factory trial-produced DZW2-8 type Ⅰ bituminous reciprocating grate boiler, which was installed and put into operation in November 1978. DZW2-8 type boiler, is a horizontal three-way reciprocating grate boiler with a ladder, flue gas by 45 and 33 Φ63.5 × 4 pipe and air preheater by the chimney