Overflow Ball Mill
Overflow ball mill is generally used for grinding materials to the particle size of 20 to 75 microns.
Overflow ball mill is generally used for grinding materials to the particle size of 20 to 75 microns. To achieve a reasonable efficiency, this machine must be operated in a closed system. Various classifiers such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the materials discharged from ball mills. There are two ways of grinding: dry process and wet process. It can be divided into tabular type and flowing type according to different discharging forms.
The machine is composed of feeding part, discharging part, turning part and driving part (reducer, small driving gear, electric motor and electric control). The quill shaft adopts cast steel part and the liner is detachable. The turning gearwheel adopts casting hobbing process and the drum is equipped with wear-resistant liner which has good wear-resistance. The machine is with stable and reliable working condition.
This machine is a skeleton pattern ball mill with horizontal cylindrical turning gear, driven by outer gear and two hoppers. The material goes to the first hopper after the spiraling by the quill shaft from the feeding equipment. The hopper has ladder sheathing or corrugated sheathing with steel balls inside, which will fall under the effect of centrifugal force by barrel and grind material. After the kibbling in the first hopper, by monolayer partition panel, the material will enter the second hopper, which has plane scale board with steel ball inside to grind material. The powder material will be discharged from the grid plate to finish the grinding.
| Model | Shell rotation speed(r/min) | Ball load(t) | Feeding size(mm) | Discharging size(mm) | Capacity | Motor power(kw)(kw) | Weight(t) |
| (t/h) | |||||||
| Ø900*1800 | 36--38 | 1.5 | ≤20 | 0.075-0.89 | 0.65-2 | 18.5 | 5.5 |
| Ø900*3000 | 36 | 2.7 | ≤20 | 0.075-0.89 | 1.1-3.5 | 22 | 6.7 |
| Ø1200*2400 | 36 | 3 | ≤25 | 0.075-0.6 | 1.5-4.8 | 30 | 12 |
| Ø1200*3000 | 36 | 3.5 | ≤25 | 0.074-0.4 | 1.6-5 | 37 | 12.8 |
| Ø1200*4500 | 32.4 | 5 | ≤25 | 0.074-0.4 | 1.6-5.8 | 55 | 13.8 |
| Ø1500*3000 | 29.7 | 7.5 | ≤25 | 0.074-0.4 | 2-5 | 75 | 16.8 |
| Ø1500*4500 | 27 | 11 | ≤25 | 0.074-0.4 | 3-6 | 110 | 21 |
| Ø1500*5700 | 28 | 12 | ≤25 | 0.074-0.4 | 3.5-6 | 130 | 25.8 |
| Ø1830*3000 | 25.4 | 11 | ≤25 | 0.074-0.4 | 4-10 | 130 | 29 |
| Ø1830*4500 | 25.4 | 15 | ≤25 | 0.074-0.4 | 4.5-12 | 155 | 35.5 |
| Ø1830*6400 | 24.1 | 21 | ≤25 | 0.074-0.4 | 6.5-15 | 210 | 43 |
| Ø1830*7000 | 24.1 | 23 | ≤25 | 0.074-0.4 | 7.5-17 | 245 | 43.8 |
| Ø2100*3000 | 23.7 | 15 | ≤25 | 0.074-0.4 | 6.5-36 | 155 | 34.8 |
| Ø2100*4500 | 23.7 | 24 | ≤25 | 0.074-0.4 | 8-43 | 245 | 38 |
| Ø2100*7000 | 23.7 | 26 | ≤25 | 0.074-0.4 | 8-48 | 280 | 56.6 |
| Ø2200*4500 | 21.5 | 27 | ≤25 | 0.074-0.4 | 9-45 | 280 | 51.8 |
| Ø2200*6500 | 21.7 | 35 | ≤25 | 0.074-0.4 | 14-26 | 380 | 60 |
| Ø2200*7000 | 21.7 | 35 | ≤25 | 0.074-0.4 | 15-28 | 380 | 62 |
| Ø2200*7500 | 21.7 | 35 | ≤25 | 0.074-0.4 | 15-30 | 380 | 64.8 |
| Ø2400*3000 | 21 | 23 | ≤25 | 0.074-0.4 | 7-50 | 245 | 54 |
| Ø2400*4500 | 21 | 30 | ≤25 | 0.074-0.4 | 8.5-60 | 320 | 65 |
| Ø2700*4000 | 20.7 | 40 | ≤25 | 0.074-0.4 | 12-80 | 380 | 94 |
| Ø2700*4500 | 20.7 | 48 | ≤25 | 0.074-0.4 | 12-90 | 480 | 102 |
| Ø3200*4500 | 18 | 65 | ≤25 | 0.074-0.4 | ----- | 800 | 137 |
| Ø3600*4500 | 17 | 90 | ≤25 | 0.074-0.4 | ----- | 850 | 158 |
| Ø3600*6000 | 17 | 110 | ≤25 | 0.074-0.4 | ----- | 1250 | 175 |
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