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What are the differences between ball mill and rod mill

Recommendation of ball mill and rod mill 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

The rod mill usually uses 50-100mm diameter steel rod as grinding medium, while the ball mill uses steel ball as grinding medium. The length of steel rod is 25-50mm shorter than the cylinder, and it is usually made of high carbon steel with carbon content of 0.8% 1%; the loading capacity of rod is about 35% 45% of the effective volume

Ball Mills vs Rod Mills

When the mill is rotated without feed or with very fine feed, the rods are in parallel alignment and in contact with one another for their full length. New feed entering at one end of the mill causes the rod charge to spread at that end. This produces a series of wedge shaped slots tapering toward the discharge end. The tumbling and rolling rods expend most of their crushing force on the

What's the Difference Between Ball Mills and Rod Mills

Nov 19, 2019 Compared with the ball mill, the rod mill adopts advanced controllable feeding and discharging technology, and can use the appropriate grinding body according to the grinding material. The point contact of the traditional ball mill can be changed into line contact, which can make the discharge granularity more uniform and the output is higher.

Comparison between Rod Mill and Ball Mill

Rod mill is a type of grinding mill whose grinding media is steel bar, while ball mill is steel ball. 1. Rod mill are usually applied to grinding the w-sn ore and rare metal in the reselection or magneticore-dressing plant in order to avoid the damage caused by the over crushing. 2. In the two stage grinding process, if it requires grinding the ore from 20-6mm to 1-3mm in the first stage, rod

7 Differences Between Ball Mill and Rod Mill Xinhai

3. Grinding medium of ball mill and rod mill. The rod mill usually adopts the steel bar with a diameter of 50-100mm as the grinding medium, while the ball mill often uses steel ball as the grinding medium. The difference on grinding medium is the main difference between the ball mill and rod mill.

Ball vs Rod vs Roll Mills Gold Refining Forum

Jun 11, 2019 In the order you have listed; a ball mill can fine grind down to <400 mesh if needed, a rod mill will efficiently grind to 150/200 mesh range, and a roll mill can do a +/- 100 mesh. The ball and rod mills are similar in appearence, as a large rotating lined cylindrical tube filled with either metal balls or long rods used as the grinding medium.

Rod Mills 911Metallurgist

A rod mill uses steel rods as the grinding media in tumbling mills is an efficient means to feed ball mills a product finer than could be made in a crusher but coarser than could be made in a ball mill. The principal use for rod mills, which were invented to make ball mill feed in a wet-grinding rod mill-ball mill circuit. Rod mills came into use in the United States beginning in 1900s and

Rod Mills Mineral Processing & Metallurgy

Metallurgical ContentRod Mill Capacity and Sizing TableROD MILL SPECIFICATIONSROD MILL CAPACITIESROD MILL General Arrangement-DimensionsPERIPHERAL DISCHARGE ROD MILLSWet Grinding ROD MILLINGDry ROD MILL GrindingCENTER PERIPHERAL DISCHARGE ROD MILL Rod Mill Working Principle & ComponentsRod Mill Grinding The Steel Head Rod Mill (sometimes call a bar mill

Which one is the best, ball mill or rod mill?

Sep 09, 2019 In the rough grinding, the product particle size of 1-3mm, the processing capacity of the rod mill is greater than the same specificationof ball mill, when used for fine grinding, the product granularity is less than 0.5mm, the grinding effect of the ball mill is greater than the same specification of the rod mill.

Comparison between Rod Mill and Ball Mill

Rod mill is a type of grinding mill whose grinding media is steel bar, while ball mill is steel ball. 1. Rod mill are usually applied to grinding the w-sn ore and rare metal in the reselection or magneticore-dressing plant in order to avoid the damage caused by the over crushing. 2. In the two stage grinding process, if it requires grinding the ore from 20-6mm to 1-3mm in the first stage, rod

Ball Mill VS Rod Mill Xinhai

For ball mill, the grinding force of steel ball to ore is less than the impact, because the contact area is small between balls and mineral. Thus, the throwing motion of ball can produce a large impact, but it need a high rotate speed and has a higher power consumption. But for rod mill, grinding effect is better which need a lower rotate speed

Ball vs Rod vs Roll Mills Gold Refining Forum

Jun 11, 2019 In the order you have listed; a ball mill can fine grind down to <400 mesh if needed, a rod mill will efficiently grind to 150/200 mesh range, and a roll mill can do a +/- 100 mesh. The ball and rod mills are similar in appearence, as a large rotating lined cylindrical tube filled with either metal balls or long rods used as the grinding medium.

Mill (grinding) Wikipedia

Rod mills are less common than ball mills for grinding minerals. The rods used in the mill, usually a high-carbon steel, can vary in both the length and the diameter. However, the smaller the rods, the larger is the total surface area and hence, the greater the grinding efficiency [5]

Rod Mill an overview ScienceDirect Topics

As such, when the product is sticky, rod mills are preferred over ball mills. Rod mills have an industrial yield that is less than that of a ball mill, which explains the fact that balls have a much larger grinding surface than rods. The power needed to operate a rod mill could exceed 30% of the power used in a ball mill.

TECHNICAL NOTES 8 GRINDING R. P. King

Figure 8.2 Media motion in the tumbling mill. 8.1 Grinding 8.1.1 Grinding action Industrial grinding machines used in the mineral processing industries are mostly of the tumbling mill type. These mills exist in a variety of types rod, ball, pebble autogenous and semi-autogenous. The grinding action is induced by relative motion between the

Orway Mineral Consultants Canada Ltd. Mississauga, ON

conventional crushing and grinding circuits (crusher-rod-ball mill or crusher-ball mill). By the 1970s, the application of conventional tended to be limited to relatively low capacities. circuits The majority of modern grinding circuits include a SAG mill, a ball mill and/or a combination thereof. The use of Bond

Rod Mill YouTube

Jul 10, 2017 A rod mill operation principle and inside motion. https://911metallurgist/blog/rod-mills

Bond Work Index Tests Grinding Solutions Ltd

Grinding Solutions offers a range of Bond Work Index Testing from crushability and abrasion to ball and rod mills. For more information on the tests please see below: Bond Low Energy Impact Test. The Bond Low-Energy Impact test can be used to determine the Crusher Work index (CWi), also known as the Impact Work Index.

Rod Mill VS Ball Mill Comparative Analysis of

Analysis of differences between rod mill and ball mill. Help you make right choice to buy rod mill and ball mill for your cement plant or mineral processing.

Ball Mills an overview ScienceDirect Topics

The ball mill is a tumbling mill that uses steel balls as the grinding media. The length of the cylindrical shell is usually 1–1.5 times the shell diameter (Figure 8.11). The feed can be dry, with less than 3% moisture to minimize ball coating, or slurry containing 20–40% water by weight.

Rod mills, how they function Mine Engineer.Com

Rod mills are very similar to ball mills, except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill, similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling, the length to diameter ratio is maintained at 1.4 to 1.6.

Grinding Cylpebs 911Metallurgist

Cylpebs of equal diameter and length have 14.5% greater surface area than balls of the same mass, and 9% higher bulk density than steel balls, or 12% higher than cast balls. As a result, for a given charge volume, about 25% more grinding media surface area is available for size reduction when charged with Cylpebs, but the mill would also draw

Which one is the best, ball mill or rod mill?

Sep 09, 2019 In the rough grinding, the product particle size of 1-3mm, the processing capacity of the rod mill is greater than the same specificationof ball mill, when used for fine grinding, the product granularity is less than 0.5mm, the grinding effect of the ball mill is greater than the same specification of the rod mill.

Rod Mill VS Ball Mill Comparative Analysis of

Analysis of differences between rod mill and ball mill. Help you make right choice to buy rod mill and ball mill for your cement plant or mineral processing.

Ball Mill VS Rod Mill Xinhai

For ball mill, the grinding force of steel ball to ore is less than the impact, because the contact area is small between balls and mineral. Thus, the throwing motion of ball can produce a large impact, but it need a high rotate speed and has a higher power consumption. But for rod mill, grinding effect is better which need a lower rotate speed

Rod mills, how they function Mine Engineer.Com

Rod mills are very similar to ball mills, except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill, similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling, the length to diameter ratio is maintained at 1.4 to 1.6.

TECHNICAL NOTES 8 GRINDING R. P. King

Figure 8.2 Media motion in the tumbling mill. 8.1 Grinding 8.1.1 Grinding action Industrial grinding machines used in the mineral processing industries are mostly of the tumbling mill type. These mills exist in a variety of types rod, ball, pebble autogenous and semi-autogenous. The grinding action is induced by relative motion between the

Grinding Circuit an overview ScienceDirect Topics

Jaw and gyratory crushers are used for initial size reduction to convert big rocks into small stones. This is generally followed by a cone crusher. A combination of rod mill and ball mills are then used if the ore must be ground below 325 mesh (45 μm). Instead of grinding the ore dry, slurry is used as feed for rod or ball mills, to avoid dusting.

Orway Mineral Consultants Canada Ltd. Mississauga, ON

conventional crushing and grinding circuits (crusher-rod-ball mill or crusher-ball mill). By the 1970s, the application of conventional tended to be limited to relatively low capacities. circuits The majority of modern grinding circuits include a SAG mill, a ball mill and/or a combination thereof. The use of Bond

Bond Work Index Tests Grinding Solutions Ltd

Grinding Solutions offers a range of Bond Work Index Testing from crushability and abrasion to ball and rod mills. For more information on the tests please see below: Bond Low Energy Impact Test. The Bond Low-Energy Impact test can be used to determine the Crusher Work index (CWi), also known as the Impact Work Index.

Rod mill video YouTube

Dec 18, 2018 The rod mill is a grinding machine with steel rod as grinding medium, mainly used for rough grinding operation. It is generally used as wet overflow type and can be used as one-stage open grinding.

Comparison of grinding media—Cylpebs versus balls

Nov 01, 2004 3. Laboratory tests. As the objective of this study was to predict the grinding performance of Cylpebs in a full-scale ball mill, a model-based procedure for scale-up of ball mill was adopted, which involved laboratory tests using the Bond ball mill, and a set of model parameter scale-up criteria to simulate the steady state performance of full-scale mill circuit from the laboratory results

Ball and Rod Mill YouTube

Jun 30, 2017 The Ball and Rod Mill type LMBRM is a process and laboratory machine, which is suitable for milling and homogenizing soft, fibrous, hard and brittle materials in dry and wet phase.

Ball Mill VS Rod Mill-xinhai

For ball mill, the grinding force of steel ball to ore is less than the impact, because the contact area is small between balls and mineral. Thus, the throwing motion of ball can produce a large impact, but it need a high rotate speed and has a higher power consumption. But for rod mill, grinding effect is better which need a lower rotate speed

AMIT 135: Lesson 6 Grinding Circuit Mining Mill Operator

The mill product can either be finished size ready for processing, or an intermediate size ready for final grinding in a rod mill, ball mill or pebble mill. AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill, and some or all of the work of a ball mill.

What’s the difference of Ball mill, SAG mill, AG mill?

Attrition mill is a type of grinding mill by kinds of media to crush lump to powder-like substances. The impact can be rock on rock such as in an Autogenous Grinding (AG) mill, rock and a small ball charge (~10%), used in Semi Autogenous Grinding (SAG) mills, balls of various sizes in Ball Mills and less commonly these days, steel rods in Rod Mills.