the Difference of Rod Mill and Ball Mill - ore . Rod mill, as the name suggests, is to rely on rod bars for the material grinding,and wet overflow is a generally used material way.Rod mill is generally used as a grinding equipment in the artificial stone sand, concentrator, chemical plants and power sectors.

Ball mill and rod mill are the common grinding equipment widely used in the mineral processing plant. They are similar in shape and grinding principle, but also different in structure, performance and application. Here are seven differences between ball mill and rod mill to tell you how to choose the ball mill and rod mill.

Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill interior.

The rod mill work index is also normally distributed. The database average and median are both 14.8 kWht, which is essentially the same as the ball mill average, showing that on average the two indices are identical. However, it is common to observe a difference between the rod mill and ball mill values for a given ore type. These.

Difference Between Rod Mill And Ball Mill. 2017-1-32 modelling the specific grinding energy and ball-mill scaleup ball-mill scale up bonds lawdata zbond work index w i zfeed d f and product d size both 80 cumulative passing result the specific grinding energy w mill power draw p wt, where t the mill capacity mill dimensions from tables or charts.

Today we will learn about difference between sag mill vs ball mill. A mill is a machine by which solid or hard materials are broken into smaller pieces by means of grinding, crushing or cutting. This commutation is an essential part of many processes. Various kinds of mills are there with which different material processing takes place.

Oleg D. Neikov, in Handbook of Non-Ferrous Metal Powders, 2009 Tumbling Ball Mills. Tumbling ball mills or ball mills are most widely used in both wet and dry systems, in batch and continuous operations, and on a small and large scale.. Grinding elements in ball mills travel at different velocities. Therefore, collision force, direction and kinetic energy between two or …

The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 ~ 400mm, sometimes even larger, and the minimum particle size of the materials to be discharged can reach 0.1 mm. The calculation shows that the crushing ratio can reach 3000 ~ 4000, while the ball mill's ...

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Difference Between Ball Mill and Rod Mill Rod Mills. The principal field of rod mill usage is the preparation of products in the 5 mm—0.4 mm (4 mesh to 35 mesh) range. It may sometimes be recommended also for finer grinding. Within these limits a rod mill is …

What's the Difference Between Ball Mill, Rod Mill and SAG ...

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. As such, when the product is sticky, rod mills are preferred over ball mills.

25302 Rod Mill Power Vs Ball Mill Kyrgyzstan. Rod Mill an overview ScienceDirect Topics The power needed to operate a rod mill could exceed 30 of the power used in a ball mill When they are worn rods must not stretch but break in rather small pieces so that they can exit the mill The energy consumed by rod mills could be from 10 to 30 higher than the energy consumed by …

Answer (1 of 3): The rod mill and the ball mill belong to the mineral processing equipment. They are similar in appearance and grinding principle, but there are differences in structure, performance and application. This paper summarizes the three aspects of the ball mill and the rod mill, hope t...

The Difference Between The Ball And The Closed Circuit. Rod mill A rotating drum causes friction and attrition between steel rods and ore particles citation needed But note that the term rod mill is also used as a synonym for a slitting mill which makes rods of iron or other metal Rod mills are less common than ball mills for grinding difference between open circuit mill and

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mill is the energy consumption. The power supplied to the mill is used primarily to lift the load (medium and charge). Additional power is required to keep the mill rotating. 8.1.3 Power drawn by ball, semi-autogenous and autogenous mills A simplified picture of the mill load is shown in Figure 8.3 Ad this can be used to establish the essential ...

Rod Mill Power Vs Ball Mill Delap. Ball mill vs rod mill difference between ball mill rod mill difference between sag mill vs ball mill mech4study oct 12 2017 today we will learn about difference between sag mill vs ball mill a mill is a machine by which solid or hard materials are broken into smaller pieces by means of grinding crushing or cut live chat more details

Ball mill and rod mill are suitable for different materials. 1. Selection by material's hardness. Ball mill has a strong adaptation of material, and it is suitable for grinding hard materials, such as slag, iron ore, copper ore, etc. Rod mill is suitable for grinding brittle material, such as rare metals. 2.

Ball Mill vs Rod Mill How To Choose Ball Mill or Rod. Ball Mills vs Rod Mills. 1. Shape and Structure. The ratio of cylinder length to diameter of rod mill is generally 1.5-2.0, and the inner surface of liner plate on end cover is vertical plane. In most cases, the ratio of the length to the diameter of the ball mill is only slightly greater ...

What are the differences between ball mill and rod mill. Grinding medium of rod mill. The rod of diameter from 50 to 100 mm is often used as the grinding medium, and thefilling rate of rod mill is 35% to 45%, whilefilling rate of ball mill is 40% to 50%.Rod is mainly made of several materials: A High carbon steel.

Power Required to Drive a Rod Mill. The power required to drive a rod mill does not appear in have been extensively studied. As a first approximation, it would be expected that the value of the function ∅10(σ/q) would be different to that for a ball mill but that the values of the remaining functions would not be seriously altered.

Ball Mill Power Calculation Example A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350 microns).

Rods in place weigh approximately 400 pounds per cu. ft. and balls in place approximately 300 pounds per cu. ft.. Thus, quantitatively, less material can progress through the voids in the rod mill grinding media than in the ball mill, and the path of the material is more confined. This grinding action restricts the volume of feed which passes ...

Ball mills. Ball mill (Fig 1) is same kind of mill as rod mill, except that it is filled with balls instead of rods. Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding. Balls are also lighter, so the kinetic energy of a single dropping ball is smaller than a rod.

25302 rod mill power vs ball mill - citycastledelhi.in rod rod mill power vs ball mill. Rod mills are very similar to ball mills, except they use long rods for grinding media. Comminution service offering Minerals Processing . Autogenous mills, semi-autogenous mills xAutogenous and semiautogenous mills, xBall mills, xRod mills and ball mills. 4 ...