Application and Features
MGS Double-inlet and Double-outlet Steel Ball Coal Mill produced by our company is a new type of Double-inlet and Double-outlet Coal Mill with self-owned intellectual property rights by introducing a series of advanced technologies of design, process, inpsetion and test on the basis of French BBD Double-inlet and Double-outlet Steel Ball Coal Mill and American D Double-inlet and Double-outlet Coal Mill techniques. MGS Double-inlet and Double-outlet Steel Ball Coal Mill has been widely used for pulverized coal preparation system in electric power, metallurgical, building materials, chemical industry and environmental protection industries.
Technical Features
With advanced structure, steady performance, complete function and reliable operation features, eight series types can supply for 100～1000MW thermal power generating units.
One and only adopt Electric-ear and Differential Pressure Double Control System, the electric ears control coal level of the mill, the differential pressure controls pulverized coal level of the mill to easily achieve height control automatically.
Screw articulation-typed forced feeding structure is very suitable for the raw coal with bigger granularity, bigger moisture and bigger viscosity, which is better than other feeding structure in preventing coal clogging.
Particular By-pass Air Pre-drying plus Classifier Front-hot Air Introduce System possess a fine raw coal pre-drying and a low temperature hot air pulverized coal conveying performance. The system explosion protection safety is extremely high.
The design of girth gear driving is complied with the newest international standard ISO6336-95 (C method) Exposed Gear Design Standard. The inspection and acceptance is complied with ISO1328-95. Gear with half and segment types are both available according to customer requirements.
The design of main bearing is adopted with unique high-low pressure united lubrication, double-segments surface rocker center aligning structure, piston-ring typed sealing, inside-setting snake pipe cooling and temperature-measured resistance under the bush, they can fully insure safety operation of bearing bush.
Pitot-static pressure lubrication station is also can be used according to the custumer reuqirements for main bearing lubrication purpose. The characteristic of this kind of bearing is with bigger oil film thickness and with a longer service-life.
Liners are made with technologies from France patent of equal wearing liner which can insure an unchanged outline shape during whole wearing period and an unchanged lifting balls capacity, thus aa stable output and fine products can be obtained.
There are three types of Classifier to be selected according to the customer requirement: Static Classifier, Dynamic and Static Classifier, also Axil Classifier.
