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Rod Mill

Rod Mill

Rod Mill

Processing ability: 3–120 t/h

Feeding size: <=25–<=50 mm

Discharging size: 0.833–0.147 mm

Applied material: quartz, iron ore, copper ore, gold, construction waste, glass, cement clinker, etc

  • copper-ore
  • gold
  • iron-ore
  • quartz

TECHNICAL RESOURCE DOCUMENT EXTRACTION AND BENEFICIATION OF ORES AND MINERALS (545KB)

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Introduction

Rod mill is named like this because the grinding media filled in the cylinder are steel rod. Rod grinder or rod grinding mill generally adopts wet type overflow and can be used in first class open-circuit grinding and widely used in the first stage grinding in artificial sand and stone, ore beneficiation plant, chemistry and power department. Rod mill works by relying on the moderative motion of peripheral rack wheel through electrical machine and reducer or the bradytelic synchronous electrical machine.

Rod Mill

There is proper ore grinding medium inside the barrel, namely steel bar. Under the functions of centrifugal force and frictional force, ore grinding medium is raised to a certain height and then falls in drop or draining falling state. The ground material is fed into the barrel from the feeding port and crushed by the moving grinding medium. At last, the final materials are discharged to the next procedure under the overflow and continuous feeding force.

Working Principle of Rod Mill

The rod mill drives the cylinder in rotation by the engine through the rotation of the reducer and big gears around with the deceleration or through low speed synchronous motor driving directly peripheral big gears. The rod grinder is equipped with appropriate grinding medium-steel bar, which is raised to a certain height under the centrifugal force and friction force and then cast down or discharged. The materials to be crushed are continuously added to the cylinder, shattered by the rotating grinding medium and discharged for the next procedure by the overflow and the power produced by continuously feeding in materials. 

Rod mill

The Major Application of Rod Mill

1) Rod grinding mill can be applied in ore re-election or magnetic separation plant of tungsten and tin and other rare metals, in order to prevent the damaged caused by the crushing process, rod mill is often used;

2) While in the second stage grinding process, if the materials in the first stage are from 20 to 6mm grinding to 3 to 1mm, when using rod grinder as the first stage powder grinding equipment, the production capacity is higher, and so is the efficiency. Because a certain weight of the charge stick surface area is much smaller than the same weight of ball charge, as the second stage fine grinding, the productivity and efficiency of rod mill is lower than that of the ball milling ;

Rod Mill

3) In some cases, rod mill can replace a short head cone crusher for fine crushing. When processing relatively soft or too hard ore (especially viscous ore), 19-25 mm (or 32 mm) of ore with a rod mill grinding to 6-10 mesh, the configuration if simpler compared with that of short head cone crushing machine.

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Technical data

Model
Shell Specifications (mm)
Shell rotation speed
(r/min)
Feeding size
(mm)
Discharging size
(mm)
Processing capacity
(t/h)
Power
(kw)
Total weight
(t)
Diameter Length
MBS0918 900 1800 36-38 ≤25 0.833-0.147 0.62-3.2 18.5 5.9
MBS0924 900 2400 36 ≤25 0.833-0.147 0.81-4.3 22 6.7
MBS1224 1200 2400 36 ≤25 0.833-0.147 1.1-4.9 30 13.9
MBS1530 1500 3000 29.7 ≤25 0.833-0.147 2.4-7.5 75 19.8
MBS1830 1830 3000 25.4 ≤25 0.833-0.147 4.8-11.6 130 34.9
MBS2130 2100 3000 23.7 ≤25 0.833-0.147 14-35 155 46.5
MBS2136 2100 3600 23.7 ≤25 0.833-0.147 19-43 180 48.7
MBS2430 2400 3000 21 ≤50 0.833-0.147 25-65 245 59.7
MBS2736 2700 3600 20.7 ≤50 0.833-0.147 32-86 380 92.5
MBS2740 2700 4000 20.7 ≤50 0.833-0.147 32-92 400 95
MBS3245 3200 4500 18 ≤50 0.833-0.147 64-180 630 149

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