The G4-73 and Y4-73 type boilers’ induced draft and forced draft fans are mainly suitable for the induced draft and forced draft fan systems of steam boilers ranging from 2 to 670t/h in thermal power plants. In the absence of other special requirements, G4-73 can also be used for mine ventilation and general ventilation. The medium conveyed by the fan is air, and the temperature must not exceed 80℃; the medium conveyed by the induced draft fan is flue gas, and the maximum temperature must not exceed 250℃.
Before the fan, a dust removal device must be installed to minimize the dust content in the flue gas entering the fan as much as possible. According to the general usage conditions of power plants, the efficiency of the installed dust collector must not be less than 85%.
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