Stable Running Ball Mill Grinder
Ball Mill
Ball Mill grinds material by rotating a cylinder with steel grinding balls,
causing the balls to fall back into the cylinder and onto the
material to be ground. The rotation is usually between 4 to 20
revolutions per minute, depending upon the diameter of the mill.
The larger the diameter, the slower the rotation. If the peripheral
speed of the mill is too great, it begins to act like a centrifuge
and the balls do not fall back, but stay on the perimeter of the
mill. The point where the mill becomes a centrifuge is called the
"Critical Speed", and ball mills usually operate at 65% to 75% of
the critical speed.
Ball Mill Application:
are generally used to grind material 1/4 inch and finer, down to
the particle size of 20 to 75 microns. To achieve a reasonable
efficiency with ball mills, they must be operated in a closed
system, with oversize material continuously being recirculated back
into the mill to be reduced. Various classifiers, such as screens,
spiral classifiers, cyclones and air classifiers are used for
classifying the discharge from ball mills. Ball mill is an
efficient tool for grinding many materials into fine powder. The
ball mill is used to grind many kinds of mine and other materials,
or to select the mine. It is widely used in building material,
chemical industry, etc. There are two ways of grinding: the dry
process and the wet process. It can be divided into tabular type
and flowing type according to different forms of discharging
material.
Technical Parameters:
| Model | Shell rotation speed(r/min) | Ball load(t) | Feeding size(mm) | Discharging size(mm) | Capacity | Motor power(kw) | Weight(t) |
| (t/h) |
| Ø900*1800 | 36-38 | 1.5 | <=20 | 0.075-0.89 | 0.65-2 | 18.5 | 4.6 |
| Ø900*3000 | 36 | 2.7 | <=20 | 0.075-0.89 | 1.1-3.5 | 22 | 5.6 |
| Ø1200*2400 | 36 | 3 | <=25 | 0.075-0.6 | 1.5-4.8 | 30 | 12 |
| Ø1200*3000 | 36 | 3.5 | <=25 | 0.074-0.4 | 1.6-5 | 37 | 12.8 |
| Ø1200*4500 | 32.4 | 5 | <=25 | 0.074-0.4 | 1.6-5.8 | 55 | 13.8 |
| Ø1500*3000 | 29.7 | 7.5 | <=25 | 0.074-0.4 | 2-5 | 75 | 15.6 |
| Ø1500*4500 | 27 | 11 | <=25 | 0.074-0.4 | 3-6 | 110 | 21 |
| Ø1500*5700 | 28 | 12 | <=25 | 0.074-0.4 | 3.5-6 | 130 | 24.7 |
| Ø1830*3000 | 25.4 | 11 | <=25 | 0.074-0.4 | 4-10 | 130 | 28 |
| Ø1830*4500 | 25.4 | 15 | <=25 | 0.074-0.4 | 4.5-12 | 155 | 32 |
| Ø1830*6400 | 24.1 | 21 | <=25 | 0.074-0.4 | 6.5-15 | 210 | 34 |
| Ø1830*7000 | 24.1 | 23 | <=25 | 0.074-0.4 | 7.5-17 | 245 | 36 |
| Ø2100*3000 | 23.7 | 15 | <=25 | 0.074-0.4 | 6.5-36 | 155 | 34 |
| Ø2100*4500 | 23.7 | 24 | <=25 | 0.074-0.4 | 8-43 | 245 | 42 |
| Ø2100*7000 | 23.7 | 26 | <=25 | 0.074-0.4 | 8-48 | 280 | 50 |
| Ø2200*4500 | 21.5 | 27 | <=25 | 0.074-0.4 | 9-45 | 280 | 48.5 |
| Ø2200*6500 | 21.7 | 35 | <=25 | 0.074-0.4 | 14-26 | 380 | 52.8 |
| Ø2200*7000 | 21.7 | 35 | <=25 | 0.074-0.4 | 15-28 | 380 | 54 |
| Ø2200*7500 | 21.7 | 35 | <=25 | 0.074-0.4 | 15-30 | 380 | 56 |
| Ø2400*3000 | 21 | 23 | <=25 | 0.074-0.4 | 7-50 | 245 | 54 |
| Ø2400*4500 | 21 | 30 | <=25 | 0.074-0.4 | 8.5-60 | 320 | 65 |
| Ø2700*4000 | 20.7 | 40 | <=25 | 0.074-0.4 | 12-80 | 400 | 94 |
| Ø2700*4500 | 20.7 | 48 | <=25 | 0.074-0.4 | 12-90 | 430 | 102 |
| Ø3200*4500 | 18 | 65 | <=25 | 0.074-0.4 | ----- | 800 | 137 |
Ball mill Working Principle:
The ball mill is a horizontal rotating device transmitted by the outer gear. The
materials are transferred to the grinding chamber through the quill
shaft uniformly. There are ladder liner and ripple liner and
different specifications of steel balls in the chamber. The
centrifugal force caused by rotation of barrel brings the steel
balls to a certain height and impact and grind the materials. The
ground materials are discharged through the discharging board thus
the grinding process is finished.
Specifications of Ball Mill
NOTICE:ANY CHANGE OF THE TECHNICIAL DATA SHALL NOT BE ADVISED
ADDITIONALY.
Energy saving ball mill is applicable for grinding all kinds of
mines and other materials, widely used in mineral separation,
building material and chemical industries, including dry-type ore
grinding and wet-type ore grinding. According to different
discharging methods, it is divided into grate ball mill and
overflow ball mill.
Features:
The ball mill is made up of feeding part, discharging part, gyre
part, transmission part, (decelerator, small transmission gear,
generator, electrical control) and so on.The hollow axis adopts the
cast steel and the lining can replace, the rotating big gear
processes in the way of casting rolling gear. The cylinder is
wearable well and bears wearable lining board. This machine runs
steadily and works reliably.
