Ball Mill

Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits. According to the need of customers, ball mill can be either wet or dry designs. Ball mills have been designed in standard sizes of the final products between 0.074 mm and 0.4 mm in diameter.

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Wear With The Lining Plate And The Steel Ball

The liner and the steel ball of ball mill are the wearing parts. In ball mill work, lining board not only is impacted and worn by the steel ball and the material falling, but also by the sliding wear of the steel ball. Steel ball is affected by liner reaction wear, material wear and wear between the steel balls. They are in the interaction and mutual influence. Therefore, we should correctly choose the lining and the steel ball. Strive for the steel ball wear and abrasion of the liner of the least. Such enterprises will have good economic benefit. Economic efficiency is a necessary condition for the survival and development of enterprises.

The liner material and heat treatment process does not meet the requirements

In operation, the lining work hardening function plate is not strong, the surface hardness is not high, and is prone to plastic drum. So it is not an ideal liner material. The hardness after heat treatment is usually low.

Effects Of Operation Conditions

During normal operation, the ball mill steel ball and material mixed together. Steel ball polishing to lining board, it is the middle of pulverized coal impact force barrier, obtained certain buffer. When some reasons lead to the less material, Part of the steel ball and lining board rubs directly impact. The impact force is usually much larger. The liner wear intensifies.

Influence Of Design And Manufacture And The Installation Quality

Lining plate quality installation is of vital importance to the safe operation of the ball mill. Because of the time and other reasons, tighten the wedge and the cylinder gap is too large, and the lining board anastomosis is not good, resulting in the lining board is not smooth. The lining and the cylinder wall are not consistent, and easy to cause the liner fracture.

Model Rotate Speed (r/min) Grinding Media Weight (T) Max.Feeding Size(mm) Discharge Size (mm) Output(t/h) Motor Power (KW)
Ф900×1800 36~38 1.5 ≤20 0.075-0.89 0.65-2 18.5
Ф900×3000 36 2.7 ≤20 0.075-0.89 1.1-3.5 22
Ф1200×2400 36 3 ≤25 0.075-0.6 1.5-4.8 30
Ф1200×3000 36 3.5 ≤25 0.074-0.4 1.6-5 37
Ф1200×4500 32.4 5 ≤25 0.074-0.4 1.6-5.8 55
Ф1500×3000 29.7 7.5 ≤25 0.074-0.4 2-5 75
Ф1500×4500 27 11 ≤25 0.074-0.4 3-6 110
Ф1500×5700 28 12 ≤25 0.074-0.4 3.5-6 130
Ф1830×3000 25.4 11 ≤25 0.074-0.4 4-10 130
Ф1830×4500 25.4 15 ≤25 0.074-0.4 4.5-12 155
Ф1830×6400 24.1 21 ≤25 0.074-0.4 6.5-15 210
Ф1830×7000 24.1 23 ≤25 0.074-0.4 7.5-17 245
Ф2100×3000 23.7 15 ≤25 0.074-0.4 6.5-36 155
Ф2100×4500 23.7 24 ≤25 0.074-0.4 8-43 245
Ф2100×7000 23.7 26 ≤25 0.074-0.4 8-48 280
Ф2200×4500 21.5 27 ≤25 0.074-0.4 9-45 280
Ф2200×6500 21.7 35 ≤25 0.074-0.4 14-26 380
Ф2200×7000 21.7 35 ≤25 0.074-0.4 15-28 380
Ф2200×7500 21.7 35 ≤25 0.074-0.4 15-30 380
Ф2400×3000 21 23 ≤25 0.074-0.4 7-50 245
Ф2400×4500 21 30 ≤25 0.074-0.4 8.5-60 320
Ф2700×4000 20.7 40 ≤25 0.074-0.4 12-80 400
Ф2700×4500 20.7 48 ≤25 0.074-0.4 12-90 430
Ф3200×4500 18 65 ≤25 0.074-0.4 According to the process condition 800

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