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用以排除含有HCl,CO,CO_2,SO_2,SO_3,H_2O等废气(气温50～70℃)的离心式风机,采用机壳衬橡胶,叶轮和机轴用手糊环氧玻璃钢复盖的办法防腐,取得良好效果。环氧玻璃钢共涂刷7层,厚1.5毫米,玻璃布夹在涂复层的中间,其所用原料有玻璃布、环氧树脂、乙二胺、邻苯二甲酸二丁酯、丙酮、填料等。常用的玻璃布厚0.1或0.08毫米,平纹,需经硫酸或氯氟酸处理。环氧树脂作为风机叶轮防腐层的粘结剂。为了施工上的方便,采用低分子量低粘度的环氧树脂,其牌号为
Centrifugal fans for removing exhaust gases such as HCl, CO, CO_2, SO_2, SO_3 and H_2O (temperature 50 ~ 70 ℃) are used to prevent corrosion by covering rubber with casing, impeller and shaft with hand-laid epoxy FRP , Achieved good results. Epoxy fiberglass coated a total of seven layers, 1.5 mm thick, glass cloth sandwiched in the middle coating, the raw materials used glass cloth, epoxy resin, ethylenediamine, dibutyl phthalate, acetone, fillers, etc. . Commonly used glass cloth thickness 0.1 or 0.08 mm, plain, to be treated with sulfuric acid or hydrochloric acid. Epoxy resin as a fan impeller coating of the binder. For the convenience of construction, the use of low molecular weight, low viscosity epoxy resin, its grade is