The basic construction of a ball mill is a cylindrical container with journals at its axis The cylinder is filled with grinding media ceramic or metallic balls or rods the product to be ground is added and the cylinder is put into rotation via an external drive causing the media to roll slide and cascade
Grinding mills spare parts Your mill is at the heart of your production process When a part fails you need to make the right decision to get your plant up and running provides grinding mill parts for equipment previously sold under a variety of trade names and has OEM parts to fit seamlessly with your existing mill and process
In the case of ball mills all internal wearing parts will pass through the manhole whereas in the case of open end rod mills they will pass through the discharge trunnion opening When lining the shell start with the odd shaped pieces around the manhole opening if manholes are furnished
Nov 30 2015· DEFINITON • A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes paints pyrotechnics ceramics and selective laser sintering etc 6 PRINCIPLE A ball mill works on the principle of impact and attrition size reduction is done by impact as the balls drop from near the top of the shell
material in the mill including the media which may be steel balls in a ball mill or large lumps of ore in an autogenous mill or a mixture in a semiautogenous mill as well as the slurry that makes up the operating charge Let Jt be the fraction of the mill volume that is occupied by the total charge Jb the fraction of the mill
The main part of the ball mill mainly include feeding part discharging part a rotary part a transmission part reducer small gear motors electrical control and other parts Hollow shaft adopts steel castings the liner is detachable slewing gear hobbing with casting the cylinder body with wearresistant liner with good resistance to wear
If finer grinding is wanted two or three stage grinding is advisable as for instant primary rod mill with 75100 mm 3″4″ rods secondary ball mill with 2540 mm1″1½" balls and possibly tertiary ball mill with 20 mm ¾" balls or cylpebs
Effect of Mill Speed on the Energy Input In this experiment the overall motion of the assembly of 62 balls of two different sizes was studied The mill was rotated at 50 62 75 and 90 of the critical speed Six lifter bars of rectangular crosssection were used at equal spacing The overall motion of the balls at the end of five revolutions is shown in Figure 4
A ball mill also known as pebble mill or tumbling mill is a milling machine that consists of a hallow cylinder containing balls mounted on a metallic frame such that it can be rotated along its longitudinal axis The balls which could be of different diameter occupy 30 50 of the mill volume and its size depends on the feed and mill size
Hammer Mill Advantages of hammer crusher are as follows big reduction ration maximum feeding size is 1315m 3150mm of discharging size high fineness of discharging size favorable shape with aggregate the powdery material is no more than 20
With more than 100 years of experience in ball mill technology 's ball mills are designed for long life and minimum maintenance They grind ores and other materials typically to 35 mesh or finer in a variety of applications both in open or closed circuits
Girth gear is the key part of ball mill and rotary kiln CHAENG is specialized in manufacturing ball mill and rotary kiln parts according to customers' drawings CHAENG
A ball mill consists of a hollow cylindrical shell rotating about its axis The axis of the shell may be either horizontal or at a small angle to the horizontal It is partially filled with balls The grinding media are the balls which may be made of steel chrome steel stainless steel ceramic or rubber
Ball Mills Steel Ball Mills Lined Ball Mills Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800's The basic construction of a ball mill is a cylindrical container with journals at its axis
Ball Mill Design A survey of Australian processing plants revealed a maximum ball mill diameter of 524 meters and length of 884 meters Morrell 1996 Autogenous mills range up to 12 meters in diameter The lengthtodiameter ratios in the previous table are for normal applications For primary grinding the ratio could vary between 11and 181
total part of ball mill total part of ball FC BOND BICO BALL MILL FC BOND BICO BALL MILL This is continued until the total weight is as close tograms as possible BOND BALL MILL SPARE PARTS total part of ball mill Read More price Mill grinding Ball mill A typical type of fine grinder is the ball mill
singlestage SAG mills to the largest mill in the world – with a 40foot diameter and 28 MW of motor power Ball mills Ball milling is the most common application for horizontal tumbling mills Outotec offers a full range of ball mills to suit a wide variety of duties from a few hundred kW all the way up to 20 MW and beyond Rod mills
