Necessity of the Ball Mill Feed Point Improvement

Wide application of the ball mill : Ball mill, which is a kind of mill used to grind materials by the steel ball in the cylinder ,and an effective tool that can grind a variety of materials, it is widely used in building materials, chemical, mineral processing and other industries.
　　　　
In the building materials, metallurgy and chemical industries, there are a large number of certain size crushed materials  : such as limestone, slag, gypsum, cement raw materials, ore beneficiation field particles, according to process requirements , these materials also required the further grinding work.

The inadequacies analysis of the ball mill: the fine grinding operations workload is quite large, this heavy work are currently carried out in the ball.But the ball mill's working efficiency is very low (15% to 30%), so the power is consumed more, the energy loss is serious, and the consumption of the metal in the milling are also relatively large. In order to reduce production costs, it is necessary to understand the premise of these mill operating characteristics,we need to  according to the nature of the materials (hardness, water content in the materials), such as material particle size and the grinding  finished product fineness requirements to reasonable choose the grinding process and fine grinding equipment. Moreover, the equipment improvement for adapting the current production is necessary.

The low  energy utilization of the ball mill  has a great relationship to the distribution of material in the mill. Nearer the outer layer of the cylinder body trajectory, the greater the grinding action.in the actual production of the mill, the material    fall directly into the cylinder inner layer, the inner layer material need to go through a long time to enter the outer layer for fully milling, and thus a large amount of energy lost.
The improvements of the Ball mill / ball mill-----about the improvements of the feed port : in order to make the material distribute reasonable, the feed portion of the mill need to be improved.change the old-style right-angle cutting slip to the pitch type material slipped, thus  the material slip angle is greater than the angle of repose, materials can be smoothly fed. We should reasonable select  the feed point of the ball mill , the material can directly fall into the cylinder outer layer. Finally, after taking into account the calculations and empirical data ,we can  determine the relevant parameters of the material, the material filling ratio, cylinder adapt speed ,  mill power these relative parameters.  

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