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凡是悬浮在空气中的细粉状固体微粒均可称为粉尘,国际标准化组织则将粒径小于75μm的固体悬浮物定义为粉尘。长期吸入粉尘,能引起以肺组织纤维化为主的尘肺病,这已经为人所知。但是在一定条件下,粉尘还会发生爆炸,知道的人就少了。粗略算来,具有爆炸性的粉尘有:金属(如镁粉、铝粉、钛粉);煤炭(如煤粉);粮食(如面粉、糖粉、玉米粉、土豆粉、干奶粉、淀粉);饲料(如血粉、鱼粉);农副产品(如棉花、烟草、茶叶粉尘);
Any fine powdery solid particles suspended in the air can be called dust, the International Organization for Standardization will be defined as solid particles with particle size less than 75μm suspended solids. Long-term inhalation of dust, can cause pulmonary fibrosis-based pneumoconiosis, which has been known. But under certain conditions, there will be an explosion of dust, people know less. Roughly speaking, there are explosive dust: metal (such as magnesium powder, aluminum powder, titanium powder); coal (such as pulverized coal); grain (such as flour, sugar powder, corn flour, potato flour, dry milk, starch); Feed (such as blood meal, fish meal); agricultural and sideline products (such as cotton, tobacco, tea dust);