Ball mill is demand present situation 
Now a lot of domestic coal-fired power plant emissions by the original coal ash, its fineness value generally changes between 20% ~ 50% (more than 325 mesh sieve), reach the national standard (GB196-91) secondary level ash ash prescribed requirements. 
Each power plant using the thickness of dry separation technology will be the original coal ash separation in order to obtain the finished product fine ash, obtain certain economic benefits. But after separating crude ash (general fineness value around 65%), has not been fully used, the general is still in situ emissions or sold at a lower price, even become enterprise burden. 
Ball mill of huge economic benefits 
Using powder composite crusher coal ash special ultra fine grinding machine the original ash or thick ash mixture after separation of ultrafine grinding, make it has a certain hydraulic activity, can produce the preparation of high performance concrete advanced blending superfine ash, reach full use of the rotary kiln coal ash powder, create greater economic benefits. 
The new machine purchase of ball mill is often a one-time investment is bigger, may have a certain economic pressure for investment, but for the choose and buy of second-hand ball mill can effectively relieve the pressure. Investment of second-hand ball mill can better bring profit ahead of time. 
Tags: ball mill, second-hand ball mill