The ball mill is the key equipment for crushing the materials after they have been crushed. Ball mills are widely used in cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal mineral processing, glass and ceramics and other production industries for dry or wet grinding of various ores and other grindable materials. The main applicable materials include quartz stone, gold ore, iron ore, cement clinker, etc.
1. Energy Saving and Less Power Consumption: The matching of the drive and the grinding media can greatly lower the power consumption.
2. The Flexible Design of the Discharging Port: The customers can decide whether the iron removing the device is required or not according to their demands.
3. The Bigger Feeding Size: The reasonable design of the feeding port can increase the feeding output.
4. Taking the Closed System to Decrease the Dust: Closed system, negative pressure conveying, small dust.Ore processing plant is also called beneficiation plant. It is a kind of production line of selecting kinds of mineral ores.
The general process is : crush big mineral stone into small size (0-20mm) , grinding these small stone into powder (or slurry) , then separate the useful ore from the powder (slurry).
There mainly have four kinds of separation method :
(1) Flotation separation ,(2) Gravity separation
(3) Leaching separation ,(4) Magnetic separation
Flotation separation
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.
The development of froth flotation has improved the recovery of valuable minerals, such as copper- and lead-bearing minerals.. It has been described as "the single most important operation used for the recovery and upgrading of sulfide ores".
Gravity separation
Gravity separation is an industrial method of separating two components, either a suspension, or dry granular mixture where separating the components with gravity is sufficiently practical: i.e. the components of the mixture have different specific weight.
It suitable for Alluvial gold ,lead , chromium ect.
Leaching separation
Leaching is the process of extracting substances from a solid by dissolving them in a liquid.
The leaching of precious metals such as gold can be carried out with cyanide or ozone under mild conditions.
Leaching method suitable for Oxidized ore.
Magnetic separation
Magnetic Separation is which separating components of mixtures by using magnets to attract magnetically susceptible materials.
It suitable for iron , Manganese ore ect.
Ball mill
Ball mill is the key milling equipment after material has been crushed.
It used to grinding 0-20mm ore stone into powder (dry grinding ) or slurry ( wet grinding ) , after grinding , the ore size is around 120 mesh.
Spiral classifier
Spiral Classifiers is art of separating the solid particles in a mixture of solids and liquid into fractions according to particle size or density by methods other than screening. In general, the products resulting are a partially drained fraction containing the coarse material (called the underflow) and a fine fraction along with the remaining portion of the liquid medium (called the overflow).
Flotation machine
This flotation machine is suitable for separating non-ferrous and ferrous metals as well as non metals such as fluorite and talc.The structure of flotation machine: this machine is mainly composed of pulp chute, mixing device, air charging system, mineralized bubble discharging device and electro motor.
Magnetic separator
A magnetic separator is a device that uses a magnet to remove impurities and other magnetic materials from metal
Ball mill application: Ball mill is the key equipment for recrushing the materials after they are primarily crushed. It is an efficient tool for grinding various materials into powder. There are two ways of grinding: the dry process and the wet process. It can be divided into tabular type and flowing type according to different forms of discharging material. Ball mill is widely used in metallurgy, mining, chemical, cement, construction, industrial and mining industries etc.
Ball Mill Working Principle: The ball mill is a horizontal rotating device transmitted by the outer gear. The materials are transferred to the grinding chamber through the quill shaft uniformly. There are ladder liner and ripple liner and different specifications of steel balls in the chamber. The centrifugal force caused by rotation of barrel brings the steel balls to a certain height and impact and grind the materials. The grinding materials are discharged through the discharging board thus the grinding process is finished.
Ball Mill Structure: 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. Moreover, according to different materials and discharging methods, there are dry ball mills and wet ball mills for choice.
Ball mill features:
1. The machine is made up of feeding part, discharging part, gyre part, transmission part (reducer, small transmission gear, motor, and electrical controller) and so on.
2. The hollow axis adopts the cast steel and the lining can be replaced. The big rotary gear is forged from cast rolling gears.
3. The barrel body is inlaid with wearable plates.
4. The machine runs steadily and efficiently.
Ball mill advantages: 1. High milling efficiency
2. Mechanically simple design
3. Competitive capital cost
4. Use of low cost
5. No steel contamination of product
6. Capacity to operate continuously at full load power draw
7. Low rotational impeller speed with shallow charge depth providing reduced abrasion of impeller and body liner coverings
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