The coal water slurry need to be comminuted wet grinding by ball mill or rod mill. Feeding size: ≤25 mm Production line type: fixed Specific model: Ф4000×5000 3 It also helped to release original ball mill feeding capacity. Compared with the original Φ3600 mm×6000 mm and Φ2700mm×3600 mm ball mill before the transformation, the
In fine grinding, when the product size is < 0.5mm, the grinding effect of the ball mill is greater than that of the rod mill The feeding particle size of ball mill is generally 5-25 mm . 3. According To Mill Properties
Rod mills are an efficient crushing machine for grinding various materials into powder. Rod mill crushes generally coarser than those produced in Ball mills, and rod mills are well suited to handle coarser feed and to control the bigger size of the product. Rod mills have Type RO, RE and RC depending on different purposes.
The ball mill is a horizontal cylindrical rotating device, with outer gears transmission, two warehouses and a grate ball mill. The materials get into the first warehouse through the feeding quill shaft from the feeding device evenly, with the step scale board or the corrugated scale board in the warehouse loaded with different sizes of steel
Jean-Paul Duroudier, in Size Reduction of Divided Solids, 2016. 3.7.4 Performance. Rod mills are used in an open circuit between crushing and the ball mill. They often operate in wet and where the pulp contains up to 50% solid by mass. This machine is equally very applicable to dry where it could take a feed that has achieved 6% moisture.
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Rod Mill–Ball Mill Circuit: Consider the set-up in Example 8.1 along with the following additional data: Grindability index for the ball mill = 12.0 kWh/t. Product size from the ball mill = 150 μm. Determine the size of the ball mill operated in closed circuit. Solution Step 1. The discharge from the rod mill is the feed to the ball mill.
Rod mills are very similar to ball mills, except they use long rods for grinding media. Rod mills accept feed up to about 50 mm 2 in. and produce a product in the size range of 3000 to 270 mm –4 to –35 mesh . Grinding action is by line contact between the rods extending the length of the mill. Rods tumble and spin in roughly parallel
In Grinding, selecting calculate the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do. Often, the ball used in ball mills is oversize “just in case”. Well, this safety factor can cost you much in recovery and/or mill liner wear and