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Issued by the U.S. economy to read the Institute of Supply Industrial Index for the month of June a value of 49.7, compared with $ 53.5 the previous reading for the month of May / May, and so the current reading is worse than analysts' expectations, which indicated a value of 52.0.As for the prices paid to read of the Institute of Industrial supply for the month of June came a value of 37.0, compared with $ 47.5 the previous reading for the month of May / May, and so is the current reading is also worse than analysts' expectations, which indicated a value of 45.8.

Mastering the role of lubrication oil when running a ball mill

1) It could reduce the abrasion of the gear and other parts,and extend the service life of the gear.

2) The lubrication oil could reduce the friction,and slow down the loss of power and energy.

3) To some extent,it could spread the heat and has a certain cooling effect.

4) Obviously,it could prevent the parts from corrosion and rust and reduced noise, vibration and gear to reduce the impact of inter-role.

5) The lubrication oil could reduce the noise during the operation,and lighten the vibration between the gear and the machinery.

6) Of course,it could wash dirt, clean the dust on the surface and reduce wear and abrasion of the parts.

So the ball mill operation is related to the lubrication.Rotating part is one of the important components of ball mill.Drives motor, reducer and the gear drove the cylinder and rotated together to grind the various materials.Good lubrication could reduce the abrasion and extend the life of machinery.
Grate type Ball Mill has a grid plate at the discharging end which has many holes for putting minerals pulps out easily. At the discharging end where the grid plate is close to, it is equipped with lifting device for mineral pulps which is radial shape strips. These strips divide the area between grid plate and the end cover into several fan-shape chambers, which lead to the hollow shaft. When a ball mill runs, these strips function as lifting the pulps that is, lifting the mineral pulps up to the hollow shaft through the hole on the grid plate. And then the pulps is sent out of the ball mill through hollow shaft. In a word, this type has the characteristics of discharging the mineral pulps by force and of high production ability.

This type of ball mill is usually applied in the first-period of grinding operation and it can get a higher capacity. But, its output product the size is bigger than that of an overflow type ball mill.
By blowing wind into the mill, the tiny powder can be blew away, over-grinding can be reduced and bringing the buffering effect, the steam in the mill can be removed, the blocking of the hole can be avoided and the sticking among balls can be reduced.

The temperature of the mill and raw material can be reduced, which will benefit the operating of the mill and the quality of the cement.