### Calculate and Select Ball Mill Ball Size for …

If you calculate from Figure 5 assuming you want/target a P90 of 60 microns you get around 22 mm (<1 inch) as a ball size. This is quite the difference… OPTIMAL BALL DIAMETER IN A MILL; Grinding_Operations_Design; Preferred size of balls for ball mills; http://www.minproc.pwr.wroc.pl/journal/pdf/ppmp48-2.329-339.pdf

### Ball Mills - an overview | ScienceDirect Topics

In a ball mill, size reduction takes place by impact and attrition. In a vertical mill the bed of material is subject to such a high pressure that individual particles within the bed are fractured, even though the particles are very much smaller than the bed thickness. Early issues with vertical mills, such as narrower PSD and modified cement hydration characteristics compared with ball mills ...

### Effect of ball load and size ... - Cement Lime …

01.12.2015 · Intercem will supply a closed circuit ball mill with vertical high efficiency air separator, mill type two compartment ball mill, diameter 3.20 m x 10.00 m EGL…

### Ball Mills - Mineral Processing & Metallurgy

CERAMIC LINED BALL MILL. Ball Mills can be supplied with either ceramic or stone linings for wet or dry grinding, for continuous or batch type operation, in sizes from 15″ x 21″ to 8′ x 12′. High density ceramic linings of uniform hardness male possible thinner linings and greater and more effective grinding volume. Mills are shipped with liners installed.

### Energy and exergy analyses for a cement ball mill …

Nowadays, ball mills are used widely in cement plants to grind clinker and gypsum to produce cement. In this work, the energy and exergy analyses of a cement ball mill (CBM) were performed and some measurements were carried out in an existing CBM in a cement plant to improve the efficiency of the grinding process. The first and second laws ...

### PROCESS DIAGNOSTIC STUDIES FOR CEMENT MILL …

A 1.5 mio t/a cement plant is having a closed circuit ball mill for cement grinding: The mill has been operating with satisfactory performance in-terms of system availability and output, however power consumption was on higher side. 3.1 System Description Mill Rated capacity 150 t/h OPC at …

### Mill (grinding) - Wikipedia

SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42 (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. A SAG mill with a 44 (13.4m) diameter and a power of 35 MW (47,000 HP) has been designed. Attrition between grinding balls and ore particles causes grinding of finer particles.

### VRM vs Ball Mill for Cement Grinding - Page 1 of 1

10.02.2016 · Mill(300-350 – TPH) and before implementing the project, we would like to gather as much information regarding the actual operation of this mill during cement grinding and the quality of the product in terms of the fineness/particle size distribution and how does it compare with the product of a ball mill relative to these parameters.

### How to Improve the Output of Cement Ball Mill - …

Cement ball mill is the key equipment for grinding fine powder mainly used in cement industry. It also can grind many kinds of ores like iron ore, slag, copper ore, gold ore in ore beneficiation plant. Cement Ball Mill. 4 factors that affect the capacity of cement ball mill. 1.Feeding size of cement

### detail drawing of diameter cement mill classifying …

detail drawing of diameter cement mill classifying liners For 60 mm 25″ and smaller top size balls for cast metal liners use double wave liners with the number of lifters to the circle approximately 131 D in meters for D in feet divide 131 D by 33 Wave height above the liners from 15 to 2 times the liner thickness