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, ore 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, gypsum, slag, cement raw materials, ore beneficiation field particles, according to process requirements, these materials also required the further grinding work. The analysis of the ball mill inadequacies: 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 finished product fineness requirements to choose the grinding process and reasonable grinding fine grinding equipment. Moreover, the equipment improvement for adapting the current production is necessary. The low energy utilization of ball mill the 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 the current 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 reasonable distribute, the feed portion of the mill need to be improved.change the old-style right-angle cutting to the pitch type material slipped slip, thus the material slip angle is greater than the angle of repose, materials can be fed smoothly. We should select the reasonable feed point of the ball mill, the material can fall into the cylinder outer layer directamente. 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. Combination crusher: Ball mill: