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Ball VS Rod Mill Conversion. The correct grinding mill depends so much upon the particular ore being treated and the product desired, that a mill must have maximum flexibility in length, type of grinding medium, type of discharge, and speed.

Rod mill to ball mill can be done, it is the other way that is difficult. The biggest issue will probably be your ball storage and feed system. This is very different from a rod feed system. Also balls are fed on a fairly regular basis such as once a day.

The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.

In addition, the dependence has been derived analytically for determining the length of a main rod primary converter, based on which one can estimate the height of a liner, which wears out in the course of operation.We have devised a functional circuit for the automated control system of energy efficiency of ore grinding by a ball mill that ...

An electric motor operated rotary drum type grinding mill is operated at optimal efficiency by detecting and analyzing the motor current. The power signals are converted by signal processing equipment for presentation as pictorial display representations of mill operating conditions at a variety of motor current levels to permit unskilled operators to understand the current operating …

rod mill converted to ball mill. Balls are usually added to the mill with the ore feed after the initial charge This requires a bin over the feed belt and feeder to add the balls at the desired rate These are usually of the top size of the balls in the mill Also a method to load balls into the bin .

Laboratory Ball & Rod Mill Feeding Size: 8 mmFeed quantity 500-1500 mlFinal Fineness: 40 μm*For more information:

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.

20′ Mill Conversion from Overflow to Grate Discharge. Copper Project. Peru 20'Ø x 30', 6.5MW Ball Mill ... Algeria & South Africa 2 of 9.5'Ø x 16′, 550 kW Ball Mills. Chrome Project. South Africa 2 of 9'Ø x 12′, 370kW Ball Mills. Platinum Project. South Africa 10'Ø x 15′, 450 kW Ball Mill ... 2.2MW Rod Mill. Gold Project ...

Rod mills are very similar to ball mills, except they use long rods for grinding media. Rod mill is named like this because the grinding media filled in the cylinder are steel rod. The rods grind the material by tumbling within the mill. To prevent the conditions leading to rod charge tangling, the length to diameter ratio is maintained at 1.4 ...

We can refurbish your mill or convert a previously-owned unit to meet your specific needs. For example, a ball mill may be converted into a SAG mill or a rod mill into a ball mill. Refurbishment is treated as a turnkey project – starting with the removal of your mill and redesign work (when required) and moving on to manufacturing replacement ...

In addition, the cylinder speed of the rod mill is lower than that of the ball mill, so the grinding medium works in the cascading state. 2. Discharging way of ball mill and rod mill. The ball mill is commonly divided into grid type ball mill and overflow type ball mill (named by the different discharging structure).

Bond rod and ball mill work indices are readily converted to pinion energy for rod and ball mills but not for SAG mills. Reproducibility, while not studied in this paper is clearly a part of the meaningfulness of the data presented. It was clear from the data that there are large variances between the various results

Cement Vertical Mill Cement vertical mill is a kind of high-efficiency and closed-circuit grinding equipment, which integrates crushing, drying, grinding, and grading functions. In recent years, it has been widely used in new dry cement production lines and gradually replaced ball mill as the main cement equipment in large cement plants .

Drum Mill TM 300. The TM 300 Drum Mill is used for the preparation of granules and powders. The grinding process is performed either in dry or wet conditions. The drum mill can be operated either as a Ball or as a Rod Mill by using the corresponding module. A sufficient number of balls or rods is required for an effective grinding process.

No 1 rod mill/ball mill circuit was operating very effi ciently when comparing the combined operating work indices for both mills with the rod mill and ball mill laboratory work indices. Note, in Figure. 1, that the rod mill product slope is less than 0.5 due to an extra amount of nes present being fi fi ner than 650 μm.

product list. Mining Grinding. Lining Plate, Support Dish Electric Control Large Gear Pinion And Pinion Shaft Rod Mill Ball Mill Autogenous Mill Semi-Autogenous Mill Double-Geared Roller Crusher. Mining Hoist. Electric Control Engineering Plastic Reducer Hydraulic Station Brake Depth Indicator Head Sheave,Guide Pulley Single-Rope Winding Mining ...

As a ball mills supplier with 22 years of experience in the grinding industry, we can provide customers with types of ball mill, vertical mill, rod mill and AG/SAG mill for grinding in a variety of industries and materials.

The rod mill uses the steel rod with a diameter of 50-100mm as the grinding medium, while the ball mill uses the steel ball most. Moreover, the diameter of the hollow shaft neck is larger than that of the same size ball mill. 3. Application fields. In the two-stage grinding process, the rod mill is generally used as the first section of the ...

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to passing 3.36 mm (6 mesh) to product size in the range of 45-150 µm (325-100 mesh), thus determining the ball mill work index (Wi B or BWi). The work index calculations across a narrow size range are conducted using the appropriate laboratory work ...

Feed size of ≥ 25 cms can be accepted by (A) Ball mill (B) Rod mill (C) Fluid energy mill (D) Jaw crusher Last Answer : (D) Jaw crusher Show Answer. 🏷️chemical-engineering; Energy requirement (per unit mass of material crushed/ground) is highest for (A) Jaw crusher (B) Rod mill (C) Ball mill (D) Fluid energy mil.

Rod Mill Converted To Ball Mill. rod mill converted to ball mill,ball mill and rod mill. ball mills and rod mills are most commonly used for if the converted sag mill is to be the only ball mill, »more detailed.rod mill converted to ball mill,(top) mount polley ball mill (mineral resources educa- tion program of bc). rod mills could be converted to ball mills; thus …

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.

Batch Ball or Rod Mill Container or, Inc. Feed size should generally be 1/8, for ball mill and 1/2 for rod mill. They are of a sturdy, rugged design to handle frequent use with hard materials. The batch ball and rod mills require a drive roll to rotate the mills. The batch ball mill should be run between 56 RPM and 70 RPM.

The difference and selection between rod mill and ball mill …. Ball mills,rod mills,flour mill,tube mills,ceramic ball mills,rod mills are both excellent mining machines for grinding ores into fine powders and particles. »More detailed

Water in rod mill discharge -55 • 38/62 = 33.7t/h Therefore, water addition to rod mill is 33.7 m3/h Water in ball mill discharge - 85.8 x 26 /74- 30.1 t/h Water in cyclone feed - (55 + 85.8) • 52/48 - 152.5t/h Therefore, water requirement to cyclone feed = 152.5 - (33.7 + 30.1) - 88.7 t/h = 88.7 m 3/h Example 3.12 The flowsheet shown in ...

Conversion of Rod mill to Ball mill Grinding. Hi There, We have a wet overflow rod mill which is being used to grind Malachite We want to convert it into ball mill to get the finer product 80% passing 70 micron Can we do the same? simply, can we convert rod mill to ball mill? if yes then what are the measures we should consider

EF5BM=[ P80+10.3 1.145×P80] ( 3 ) The EF4 formula requires both the rod mill and ball mill work index (rod mill Wi is used to calculate the optimal feed size) and because this is a "single-stage ball mill" calculation, the F80 is actually the rod mill feed size (10,000 µm) from Table 1 and the P80 is the ball mill circuit product. The EF5 factor only applies below 75 µm to ball

conversion of rod mill to ball mill grinding. For a capital expenditure of only 46000 Caland Ore Company has successfully converted its three dry grinding center peripheral discharge rod mills to dry grinding ball mills The conversion has resulted in a significant capacity increase operating cost reductions and inplant environmental improvements.