Double-in and double-out pulverizer are used for pulverized coal, it is the main equipment of direct-fired pulverizing system. It is mainly used in the boiler island of large-scale thermal power plant. It can also be used in chemical, building materials and phosphate Powderd epartment.
The 0 ~ 30mm raw coal is sent to the hopper through the speed automatic control of the coal feeder, and then through the mixing box, at the same time pre-drying by the bypass wind. Fall at the hollow axis screw conveyor through the coal pipe. The conveying device rotates with the cylinder of the mill, and make the raw material fall into mill cylinder through the hollow shaft. In the mill cylinder rotation process, due to the steel ball hit and rub each other on the coal, the coal gradually grinding into coal powder.
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