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Rod mill

Rod mill is a kind of mill in which steel rod is loaded into the cylinder as the grinding body. Our company adopts advanced controllable feed and feed technology, combines the actual grinding material with the appropriate grinding body, and changes the traditional surface contact to line contact, so that the feed size is more uniform, the output is higher and the price is more reasonable

  • Productive capacity:

    0.62-180t/h
  • Feed size:

    ≤50mm
  • Motor power:

    18.5-630KW

Description

A rod mill is a mill in which steel rods are loaded into the cylinder as the grinding body. Is our company adopts advanced controlled material in and out technology, combined with the actual grinding materials with appropriate grinding body, to the traditional surface contact to line contact, more uniform particle size, higher output, more reasonable price, widely used in metallurgy, chemical, glass, refractory and other industries on the uniformity of finished products after grinding requirements of high grinding operations. In recent years, it has also been used in the sand making industry for construction sand. Rod mill has dry and wet two forms, users can choose according to their actual needs.

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Performance Advantages

  • 01
    Uniform discharge particle size, wide range of application: The use of controllable inlet and outlet rod mill technology, combined with the actual grinding material with a suitable grinding body, grinding medium and ore in line contact, so that the discharge particle size is more uniform, higher yield, can be applied to different hardness of the ore.
  • 02
    Discharge particle size can be adjusted: the built-in fineness control device can change the particle size of the discharge by simple adjustment, and the discharge screening device can be added to ensure that neither over-grinding nor unqualified products will be mixed into the finished product.
  • 03
    Small power, large processing capacity: more than 40% power saving than the old equipment, containing less coarse particles and slime. When used for rough grinding, the processing capacity of the rod mill is greater than that of the ball mill of the same specification.
  • 04
    A variety of models to choose from: dry rod mill and wet two forms, wet rod mill according to the discharge method can be divided into overflow rod mill, open rod mill, peripheral rod mill three kinds, users can choose according to their actual situation.

Working Principle

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When working, the motor is driven by the reducer and the surrounding big gear or the low-speed synchronous motor is directly driven by the surrounding big gear to drive the cylinder to turn. The cylinder body is equipped with the appropriate grinding medium - steel rod. The grinding medium is raised to a certain height under the action of centrifugal force and friction force, and falls in the state of throwing or sliding. The ground material is continuously entered into the cylinder by the feed port, crushed by the moving grinding medium, and the product is discharged out of the machine by the overflow and the continuous feed force to carry out the next process operation.

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Question&Answer

Q:What is the cause of the loud banging in the mill? How to solve it?

A:Possible causes: 1. Too little feed; 2. The liner falls off; 3. Too many steel rods; 4. Stick.
Solution: 1. Increase the feed quantity; 2. Emergency stop, fixed liner; 3. Adjust the steel rod quantity; 4. Emergency stop and adjust.

Q:What is the cause of the excessive noise? How to solve it?

A:Possible causes: 1. The size of the gear mesh is not good; 2. The amount of lubricating oil on the mesh surface is not enough; 3. Big gear bolts loose; 4. Big gear against protective cover.
Solution: 1. Adjust the gear meshing clearance; 2. Check the dry oil injection system; 3. Emergency stop and tighten the bolts; 4. Emergency stop and repair the protective cover.

Technical Data:

Model Diameter(mm) Length(mm) Cylinder speed(r/min) Feed size(mm) Discharge size(mm) Yield(t) Power(kw) Rod load
GMB1835 φ1800 3500 22.8 ≤25 ≤5 20-50 160 13
GMB2136 φ2100 3600 20.9 ≤25 ≤5 30-70 210 18
GMB2145 φ2100 4500 20.9 ≤25 ≤5 50-80 250 20
GMB2436 φ2400 3600 19 <20 ≤5 60-120 280 21
GMB2736 φ2700 3600 17.5 <20 ≤5 100-220 400 24
GMB2745 φ2700 4500 17.5 <20 ≤5 120-250 500 27
GMB3245 φ3200 4500 16 <20 ≤5 300-450 800 50
GMB3645 φ3600 4500 15 <20 ≤5 430-580 1000 55

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