Ball mill is a key equipment for regrinding. It is widely used in the mining, new type building material, glass, ceramics and etc. According to different forms of discharging materials,it can be divided into tabular type and flowing type .And there are two ways of grinding :the wet process and the dry process. The wet process means that the materials are ground with water ,while the latter not.
Ball Mill working principle: This ball mill,a horizontal type and tubular running device, has two warehouses. This machine is a grid type .The material enters spirally and evenly the first warehouse of the milling machine along the input material hollow axis by input material device. In this warehouse , there is a ladder scaleboard or ripple scaleboard, and different specification steel balls are installed on the scaleboard, when the barrel body rotates and then produces centrifugal force ,at this time , the steel ball is carried to some height and falls down to make the material heavy striking and grinding. After being ground coarsely in the first warehouse, the material then enters the second warehouse for regrinding with the steel ball and scaleboard. In the end, the powder is discharged by output material board and the final products are completed.
The following is the ball mill technical specification:
| Model | Speed of bucket (r/min) | Size of feed opening (mm) | size of outputting feed (mm) | Production (t/h) | Power (kW) |
| Ф900×1800 | 42 | ≤20 | 0.075-0.89 | 0.65-2 | 18.5 |
| Ф900×3000 | 41 | ≤20 | 0.075-0.89 | 1.1-3.5 | 22 |
| Ф1200×2400 | 36 | ≤25 | 0.075-0.6 | 1.5-4.8 | 30 |
| Ф1200×3000 | 32 | ≤25 | 0.075-0.4 | 1.6-5 | 45 |
| Ф1200×4500 | 32 | ≤25 | 0.075-0.4 | 1.6-5.8 | 55 |
| Ф1500×3000 | 31 | ≤25 | 0.075-0.4 | 2-7 | 75 |
| Ф1500×4500 | 27 | ≤25 | 0.075-0.4 | 3.5–8 | 110 |
| Ф1500×5700 | 27 | ≤25 | 0.075-0.4 | 3.5-10 | 132 |
| Ф1830×3000 | 26 | ≤25 | 0.075-0.4 | 4-12 | 160 |
| Ф1830×6400 | 26 | ≤25 | 0.075-0.4 | 6.5-15 | 210 |
| Ф1830×7000 | 26 | ≤25 | 0.075-0.4 | 6.5-22 | 210 |
| Ф2200×5500 | 21 | ≤25 | 0.075-0.4 | 10-22 | 370 |
| Ф2200×6500 | 21 | ≤25 | 0.075-0.4 | 14-50 | 380 |
| Ф2200×7500 | 21 | ≤25 | 0.075-0.4 | 16-50 | 380 |
| Φ2200×9500 | 21 | ≤25 | 0.074-0.4 | 18-60 | 475 |
Spodumene: According to the hard rock crushing process, the crushed product is generally 5-40mm, combined with different design requirements of customers, two-end or three-stage crushing, high-grade crushed products (above 4-5%) can be directly used in the metallurgical process to produce lithium carbonate Or lithium hydroxide, the particle size of the finished product is generally around 20-40mm; low-grade generally requires ball mill grinding and separation, and the particle size of the finished product is generally around 5-20mm;
