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今年3月18日,浙江省东阳县瓷厂发生了一起火灾。这起火灾的形成,是由于该厂生产用的余热回收风管,经过长时间的通热,铁管产生高温,引燃了裹在管道上的麻袋片造成的。生产用的余热回收热风管,温度有时高达摄氏700多度,其保温材料本应采用硅铝棉加水泥珍珠岩,但该厂技术人员嫌施工困难,便违反规定,擅自改为硅铝棉外裹麻袋片作保温材料。在余热回收风管的工艺设计上,高温的热风
March 18 this year, Zhejiang Dongyang Cichang a fire broke out. The fire was formed because of the waste heat recovery duct used for the plant’s production. After a long period of heat, the iron pipes were heated and ignited, causing the sacks to wrap around the pipes. Production of waste heat recovery hot air duct, the temperature sometimes as high as 700 degrees Celsius, the insulation materials should be used alumina cement plus perlite, but the factory technical staff suspected construction difficulties, they violated the regulations, without authorization to silan Outer sack film for thermal insulation material. In the waste heat recovery duct design, high-temperature hot air