difference between rod mill and ball mill

difference between rod mill and ball mill [randpic] What are the differences between ball mill and rod mill The rod of diameter from 50 to 100 mm is often used as the grinding medium, and the filling rate of rod mill is 35% to 45%, while filling rate of ball mill is 40% to 50%. Rod i

Laboratory Ball Mill - YouTube

https:// A Laboratory Ball Mill, because the calibrated grinding energy m...

Comminution - an overview | ScienceDirect Topics

Rod and ball mills operate by collision and by shearing. Autogenous mills encapsulate three types of action: collision, compression and shearing. Attrition mills (vibratory or non-vibratory) operate as their name indicates and, in addition, by collision, just like micronizer.

small scale ball mill machine rod mill ball mill

Ball Mills Mineral Processing Metallurgy. 13/02/2017 If finer grinding is wanted two or three stage grinding is advisable as for instant primary rod mill with 75—100 mm (3″—4″) rods, secondary ball mill with 25—40 mm(1″—1½") balls and possibly tertiary ball mill with 20 mm (¾") balls or cylpebs To obtain a close size distribution in the fine range the specific surface of ...

Ball Mill for Sale | Grinding Machine - JXSC Mining

Ball mill is a key equipment for grinding materials. thus grinding ball mills are widely used in the mining beneficiation process, and it has a wide range of suitable grinding mineral and can works on wet and dry grinding processing. our JXSC's ball mills are perfectly used for ores such as gold, iron, zinc ore, copper, etc.. JXSC Mining produce reliable effective ball mill for long life and ...

Comparing Used Ball Mills Vs Used Rod Mills

Ball mills and rod mills are both excellent mining machines for grinding ores into fine powders and particles. However there are some advantages to using rod mills rather than ball mills for larger mining projects including greater efficiency, better grinding performance and lower energy costs.

What Is a Ball Mill? - Monroe EngineeringMonroe Engineering

For a ball mill to work, critical speed must be achieved. Critical speed refers to the speed at which the enclosed balls begin to rotate along the inner walls of the ball mill. If a ball mill fails to reach critical speed, the balls will remain stationary at the bottom where they have little or no impact on the material. Ball Mills vs ...

disadvantages of rod mills - Top Project Machinery

Ball Mills vs Rod Mills - A.M. King Industries, Inc Ball mills and rod mills are both excellent mining machines for grinding ores into fine powders and particles. However there are some advantages to using rod. Get Price. roll mill advantage anddisadvantageof ball mill.

Ball Mill VS AG Mill: What are the Similarities and ...

Ball mill, rod mill and AG mill are common equipment for grinding operation in mineral processing plants. The difference between ball mill and rod mill has been known before, but what are the similarities and differences between ball mill and AG mill? This article will take you to explore so as to help you choose the appropriate grinding equipment more conveniently.

Flow of materials in rod mills as compared to ball mills ...

In the case of ball mills, the axial dispersion is higher and the mean residence time is shorter than those in rod mills. In rod mills, the axial dispersion is lower—close to plug flow ( Lynch, 1977 )—as well as selective breakage (compared with ball mills) produce a narrower size distribution product than that of ball mills.

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ground separately in the ball mill and rod mill. The slope of the log-log plot of initial rate of for-mation, Kx. versus particle size (a linear plot of size in mesh being equivalent to a logarithmic plot of size in microns) is 0.61 and 0.63 for limestone ground in the ball mill and rod mill. respectively, and 0.87

rpm optimal ball mill - limestonegrinders.com

ball mill rpm optimal. ball mill rpm optimal A Ball Mill Critical Speed actually ball rod AG or SAG is the speed at which the centrifugal forces equal gravitational forces at the mill shells inside surface and no balls will fall from its position onto the shell The imagery below helps explain what goes on inside a …

Ball Mill Machine For Sale - FTM Machinery

Ball mill vs Rod mill. Similarities. The working principle is basically the same. Regardless of the ball mill or the rod mill, when the cylinder rotates, the grinding media (ball or rod) installed in the cylinder body are lifted to a certain height, and then they are thrown at a certain linear velocity, so the grinding media causes some impact ...

rod tube and ball mills comparison

Ball Mill vs Vertical Roller Mill forumbulk online. Visit Federal Equipment Company to purchase used ball mills at a competitive price Rod / Tube Mills Three Roll Mills Ball Mill / Pebble Jar Mills sag mill and ball mill differenceHello Difference between ball mill and tube mill Are rod and ball mills set to become obsolete Feb 09 32 Does anybody have any information on the efficiencies gained ...

Ball Mill and Rod Mill | Modular Mining Equipment ...

Ball mill and rod mill solutions are available here at APT, providing an effective means for grinding and blending materials in preparation for mineral liberation, from rock to dust. APT specifies and designs the entire circuit around the mill, to ensure that the target product size is achieved. Ava

Ball Mills vs Rod Mills

Ball Mills vs Rod Mills. Ball Mills vs Rod Mills. Post navigation. Previous. Next. 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 ...

rod,tube and ball mills comparison Search

Ball Mills vs Rod Mills. Jul 03, 2017 Because of this, the rod mill can effectively reduce 1″ feed size to 10 mesh or finer in open circuit. The voids (or interstitial space) within a rod load are approximately half those in a ball mill grinding load. Rods in place weigh approximately 400 pounds per cu. ft. and balls

Optimization of mill performance by using

Optimization of mill performance by using online ball and pulp measurements by B. Clermont* and B. de Haas* Synopsis Ball mills are usually the largest consumers of energy within a mineral concentrator. Comminution is responsible for 50% of the total mineral processing cost. In today's global markets, expanding mining groups are trying

What is Ball Mill | How Many Types of Ball Mills | M&C

1. Ball Mill: The grinding medium is mainly short steel bar or steel ball.The grinding force of ball mill is large, the structure is light, and the rotation speed is stable. 2. Rod Mill: The grinding medium is mainly steel rod, the diameter of steel rod is mostly between 50-100mm, and the grinding time is longer.. 3. Gravel Mill: The grinding medium mainly includes pebble, gravel, sand ...

ball mill vs vertical mill in white cement production

ball mill vs vertical mill in white cement production. A cement mill (or finish mill in North American usage) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement.Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills.

overflow ball mill theory

· Grate Discharge Ball Mills have shown 25% to 45% more tonnage ground and a substantial reduction in power consumed per ton of material compared size for size with overflow mills. To illustrate the characteristics of various type mills we have shown the types of discharge for rod mills and ball mills. There are essentially four types of rod mill.

Making a Ball Mill - YouTube

The milling of the materials is a very useful procedure in various domains in life as well as in the constructive domain. Click HERE to subscribe to Make it...

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.

Difference Between Sag Mill vs Ball Mill - mech4study

BALL MILL. 1. SAG mill is the primary tool for grinding. SAG mill is used before the other mills. Ball mill is a secondary, and it is used after the SAG mill. 2. SAG mill breaks the raw material into pieces for the further grinding. Ball mill is used to grind the …

THE MODE OF BALL MILL OPERATION

This is the most common mode used during operation of rod mills, ball mills with central unloading and pipe mills in the case of wet and dry grinding of non-corrosive materials. Mixed operating mode is illustrated in the figure b, where the dotted line shows the position of the grinding balls in flight along the trajectory and solid lines ...

What's the Difference Between Ball Mills and Rod Mills ...

The finesse of the material milled by the ball mill is 0.074mm-0.4mm, only except for the two small ball mills that have a wider range of 0.075-0.89mm. However, the rod mill fine grinding fineness is about 0.833-0.147mm. In terms of the fineness of …

Differences And Similarities Between Rod Mills And Ball ...

The grinding fineness of the ball mill is finer, usually the output particle size is between 0.074-0.4mm, while the output fineness of the rod mill is between 0.833-0.147mm. 4.Classification is different. Ball mills can be divided into overflow-type and lattice-type ball mills, while rod mills are classified into overflow-type and open-type rod ...

A Method of C alculating Autogenous/ Semi-Autogenous ...

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 …

Ball Mills - Mineral Processing & Metallurgy

Ball Mills or Rod Mills in a complete range of sizes up to 10′ diameter x 20′ long, offer features of operation and convertibility to meet your exact needs. They may be used for pulverizing and either wet or dry grinding systems. Mills are available in both light-duty and heavy-duty construction to meet your specific requirements.

Difference between Rod mill and Ball mill - Fodamon Machinery

Fodamon engineers share the differences between ball mill and rod mill as follows: 1. Appearance and structure The shape ratio of the barrels of the two mills is different. The ratio of the length and diameter of the rod mill barrel is generally 1.5-2, and the inner …