Coal gangue is a solid waste discharged during the process of coal mining and the process of coal washing. It is a kind of black -gray rocky rock with a low carbon content and harder than coal in the process of coal -to -coal. After deep processing, coal vermiculite is valuable and can be used to produce building materials such as vermiculite cement and concrete. In addition, it can also be used to recover the fields of coal, coal and vermiculite mixed power generation. Whether it is used for bricks, or adding materials for cement or supplied to coal gangslite power plants, the generally used processing equipment include jaw crusher, impact crusher, raymond mill, ultra -pressure trapezium mill, vertical mill, vibrating screen, vibrating feeder, etc.
Generally, coal gangue crushing grinding equipment requires relatively low requirements, and jaw crusher, impact crusher, and sand making machine can easily achieve preliminary crushing operations on coal gangsters. Among them, the European type impact crusher uses the impact to crush the material, which is very suitable for various soft and medium -hard ore to perform rough, medium crushed, and fine crushing operations. A large -scale coal gangue crushing project in Baotou City, Inner Mongolia, purchased 4 PFW1318 III European type impact crusher, was broken for medium crushing operations for coal gangue. After the screening, the finished product rate reached 95%.
Coal gaugue uses desulfurization agent -limestone powder can be prepared with limestone mill. Lime powder for desulfurization requires the granularity of 250 meters or 325 mesh. 325 meshite powder has better desulfurization effect. Preparation of such fine limestone powder. In recent years, more and more power plants have begun to use European mill. The MTW European version is a new type of powder grinding equipment that absorbs European new powder grinding technology and concepts. It has a number of independent patented technical rights such as the overall transmission of the gear, the internal thin oil lubrication system, and the curved van. The drying effect is good, the area is small, and the provinces of civil construction are used. Under the same power, the output increases by 20%.
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