Rod Mill Power Vs Ball Mill
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Although they have the similar working principle, there are many differences between ball mill and rod mill on details. 1. Configuration of ball mill and rod mill. The proportion of cylinder shape is different. The cylinder length-diameter ratio of rod mill is generally 1.5-2.0, while the cylinder length-diameter ratio of ball mill is smaller ...

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.

The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific ...

Ball mills with a drum length to diameter ratio greater than 1.5 are referred to as tube mills. Ball mills may be primary or secondary grinders. Primary grinders are fed from crushers such as a jaw crusher. Secondary grinders are fed from other grinders e.g. a rod mill. Ball mills are usually either of the grate (diaphragm) or overflow type.

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 ...

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. Rod mills accept feed up to about 50 mm ...

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. The ball mill has a great similarity in appearance with rod mill,which is most ...

Mill power Usually, plant operators use mill power readings as an indicator of ball filling degree and, often, try to keep it at the maximum level. It is well known that the mill absorbed power depends on operating parameters other than ball level, such as pulp density and liner configuration. Figure 2 shows that there is no linear relation between

Rod mill are used widely in plant and are compared by us. This text will analyze the two equipment in some aspect. The grinding theory. Though used different medium (steel ball and steel rod are contained in ball mill and rod mill), the working theory of ball mill and rod mill are similar.

Ball Mills Now are the most commonly used in the cement industry, ... Steel Mill Thermal Power Plant GGBFS Production Line 300,000 t/a GGBFS Plant 450,000 t/a GGBFS Plant ... The rod mill is loaded with the grinding media of steel bars It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and ...

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 …

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 bar mills and this is for comparable performance.

The processing capacity of ball mills and rod mills is usually calculated by volumetric method or power consumption method, and the selection of ore mill should meet the following requirements: 1) Rod mills are mostly used for rough grinding, with a discharge particle size of 1~3mm, which can be ground to 0.5mm in a gravity separation plant.

· 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.

For a rod mill–ball mill circuit, do not apply a mill diameter correction for the ball mill. If the rod mill feed is produced by open circuit crushing, use a factor of 1.2 for the rod mill stage only. If the rod mill feed is 80% passing 12 mm or less (e.g. from a closed circuit crusher) do not apply a rod mill efficiency factor.

Answer (1 of 2): 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...

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 pieces of raw material into. powder-like structures. 3.

The ball size in a mill has a significant influence on the mill throughput and power consumption. Here the ball size refers to two aspects, one is the maximum ball size, and the other is the correct ball size ratio. · The size of the grinding media directly …

All Mobile crushing line Stationary crushing line Industrial grinding line

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 …

The Bond Ball Mill Work Index (BBWi) test is carried out in a standardised ball mill with a pre-defined media and ore charge. The Work Index calculated from the testing can be used in the design and analysis of ball mill circuits. The test requires a minimum of 10kg of sample that has been stage-crushed to passing size of <3.35 mm.

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 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 ...

Rod Mill. Rod Mill, is a grinding machine similar to a ball mill. The obvious difference between the two is the grinding medium. Rod mill is named after the medium is a steel rod. Scope of application: metallurgy, chemical, glass and other industries, in recent years, also used in the sand making industry for construction sand.

The wet ball mill has a wider application, which can be used to grind all kinds of metal ore, non-metal ore. 5. Introduction of similar grinding mill. The ball mill belongs to the category of grinding mill. In addition to the ball mill, the grinding 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.

Rod Mill Power Vs Ball Mill. Comparison between rod mill and ball mill014-01-03od mill is a type of grinding mill whose grinding media is steel bar, while ball mill is steel ballod mill are usually applied to grinding the w-sn ore and rare metal in the reselection or magneticore-dressing plant.

Rod Mill Vs Ball Mill. Rod Mill Vs Ball Mill. 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 bar mills and this is ...

B = ball size (inch) If a power loss was in deed occurring in the manner indicated above, then. given a typical ball size of 65mm (2.5inch), such power loss would only. be noticeable in mills with ...

Feb 13, 2017 Difference Between Ball Mill and Rod Mill Rod Mills. The principal field of rod mill usage is the preparation of products in the 5 mm0.4 mm (4 mesh to 35 mesh) range. It may sometimes be recommended also for finer grinding. Within these limits a rod mill is usually superior to and more efficient than a ball

Search rod mill power vs ball mill to find your need. Mining and Construction Machinery is a global manufacturer and supplier, We supply full crushing and … Rod mills, how they function – Mine Engineer.Com provides …

But for rod mill, grinding effect is better which need a lower rotate speed and has a lower power consumption. Xinhai produce all kind of ball mill and rod mill with high quality, you would interested in them. Tags:Ball Mill VS Rod Mill. From:Xinhai Mining Machinery Company. Related articles. 7 Differences Between Ball Mill and Rod Mill;

Ball Mills vs Rod Mills - Metallurgist & Mineral Processing Engineer

Mill liners and grinding media (balls or rod) sizes along with ore residence time and circulating load all have impact on mill efficiency. Power consumption is largely impacted by the grind-ability index as determined by testing and other characteristics. Water is often added to base metal ores to improve efficiency.