Ball Mill feed port problems and improved methods

In recent years, with the constant improvement of new technology, new technology, major changes have taken place in the output of ball mill, with specifications of the open and closed circuit grinding machine with uncooked materials make the yield difference between more than two times. Through the study found that the output of ball mill is largely affected by the feed rate, and major influential factors of ball mill feeding rate, is the mill inlet. In this paper, the old series of ball mill feeding port as an example analysis of ball mill feeding mouth what problems.

1, the inlet is usually installed horizontally, the material in the feed opening the ground to form a natural accumulation of 45 ° when using bucket weighing ingredients and closed loop load is high, the ventilation area of ​​the inlet is blocked to basically no material, material In the mill alone pressure flow.

2, raw mill water because the material itself is large, the material in the ball  mill heating process, the material evaporated water vapor and powder can not be ruled out, leading to severe grinding paste phenomenon.

3, mill poorly ventilated, so that the heat can not be discharged, resulting in grinding temperature, so bring fine particle surface charge, resulting in electrostatic adsorption surface grinding powder packets ball phenomenon, so the mill grinding efficiency is reduced, energy consumption increased.

The improved method:

1, the feed port problems can be seen, the inlet feed the main problem is the problem of downpipe.

2, the feed port has a certain angle to the installation, the material in the gravity feed smoothly, without causing clogging of the inlet.

3, the original material under the inlet valve is profusely, dip into a cylindrical-type cutting downpipe, so clear space in the control spiral can make out, to create good conditions for the mill ventilation.

4, in the inlet pipe imported into an enlarged body Ф200 timely pass into the hot air, reducing the temperature difference between the ball mill and reduce the ball mill steam condensation.

5, in the lower half of a ball mill cylinder liner reinforced to improve resistance to abrasion and cutting of the funnel inlet well play a protective role.

By feeding device improvements, Hongxing machine found the ball mill grinding efficiency improved, and no longer appeared paste temperature grinding mill phenomenon, caused by poor ventilation. Especially in the later half of the cylinder liner reinforced, a ball mill has also been extended service life, greatly improve the effectiveness of the user's investment.