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An Analysis on the Development of Ball Mill

  • Date Submitted: 01/03/2013 06:53 PM
  • Flesch-Kincaid Score: 47.2 
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  An Analysis on the Development of Ball Mill
  Since its emergence, the ball mill has experienced uneven development over nearly one hundred years due to different research methods owing to the different economic development levels of nations. Although the efficiency of ball mill is very low, it is extensively applied.
  Ball Mill
  Domestic research on energy is basically carried out individually and empirically. There haven't been systematic research methods to gain due achievements. The research covers the optimal application, the factors influencing efficiency of ball mill, optimal simplified structure form, transmission mode, steel ball size, matching ball quantity, rotation speed, power, plate, etc.
  Although ball mill has basically completed its localization, the research and analysis on the ball mill has been staying on traditional level. The traditional design of ball mill is based on the calculation of the thickness of grinding machine barrel. To reinforce plate arrangement, the   method of analogy can be adopted. If we simplify ball mill as a beam and calculate the strength according to the plane bending, torsion and deformation, the result can be too rough. The reasons are as follows:
  1 There isn't much difference between the diameter and barrel length, so it doesn't accord with the assumption of simplified supporting beam ( the beam length can be over five times the   maximum size of the cross section )2 The cylinder body is a kind of plate shell structure, and the deformation under stress is much   complex.
  3 The cylinder body contains a feed port, a discharge port and lining plate, which may cause stress concentration. So only fine calculation can make nearby stress distribution clear.
  So the traditional design of ball mill tends to be conservative, and the intensity far exceeds the working condition. Since there is a lot of strength reserve, Henan YIFAN has made detailed analysis on it. We will continue to make an effort to moderate and...

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