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Ball Mill

The ball mill is a milling equipment used to grind various materials and produce ore pulp, which uses steel balls as the grinding medium.

The ball mill is a milling equipment used to grind various materials and produce ore pulp, which uses steel balls as the grinding medium. According to different grinding methods, ball mill can be divided into the dry and wet ways. In general, we adopt the wet grinding method for the ore dressing.

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What is a ball mill grinding?

The ball mill equipment developed by FTM Machinery is a grinding machine, which uses steel balls as the grinding medium. And the ball mill grinder is mainly used for grinding cement, silicate products, new building materials, refractory materials, fertilizers, various ores and glass ceramics, etc. Besides, it is widely used in industries such as ore dressing, building materials, and chemicals. According to different grinding methods, the grinding process can be divided into dry and wet ways. In general, the minerers usually adopt the wet grinding method for the ore dressing.

What materials can be processed by ball mill grinder?

The ball mill machine can grind many kinds of materials like limestone, diabase, calcium carbonate, quartz stone, iron ore, copper ore, gold ore, grindable materials, non-metallic ore, non-flammable and explosive materials.
Ball mill grinding material

How does a ball mill work?

Working principle of ball mill grinder

Firstly, the materials enter the first chamber of the mill uniformly through the hollow shaft of the feeder. The ball mill liners have different kinds of steel balls. When the cylinder rotates, the FTM Machinery ball mill brings the materials and the balls to a certain height and then let them fall.After continuous impact on materials and balls, the materials are ground roughly in the first chamber.

Secondly, the materials enter the second chamber through a single-layer compartment board. And the chamber is lined with a flat lining plate, some steel balls inside, then Fote Machinery ball mill is grinding these materials further. Finally, the materials are ground into a fine powder.

Last but not least, the powder is discharged through the discharging raft to complete the grinding work.

Ball Mill Technical Parameter

Model Ball load
(t)
Feeding size
(mm)
Discharging size
(mm)
Capacity
(t/h)
Motor power
(kw)
Total weight
(t)
Ф900×3000 2.7 <20 0.075-0.89 1.1-3.5 22 6.98
Ф1200×4500 5 <25 0.074-0.4 1.6-5.8 55 15.6
Ф1500×4500 11 <25 0.074-0.4 3-6 110 22
Ф1500×5700 12 <25 0.074-0.4 3.5-6 130 25.8
Ф1830×3000 11 <25 0.074-0.4 4-10 130 34.5
Ф1830×4500 15 <25 0.074-0.4 4.5-12 155 38
Ф2100×3000 15 <25 0.074-0.4 6.5-36 155 45
Ф2100×4500 24 <25 0.074-0.4 8-43 245 56
Ф2100×7000 26 <25 0.074-0.4 12-48 280 59.5
Ф2200×4500 27 <25 0.074-0.4 9-45 280 54.5
Ф2200×6500 35 <25 0.074-0.4 14-26 380 61
Ф2200×7000 35 <25 0.074-0.4 15-28 380 62.5
Ф2400×4500 30 <25 0.074-0.4 8.5-60 320 72
Ф2700×4500 48 <25 0.074-0.4 26-90 480 102
Ф3600×4500 90 <25 0.074-0.4 As per process conditions 850 169
Ф3600×6000 110 <25 0.074-0.4 As per process conditions 1250 198
Ф4000×5000 121 <25 0.074-0.4 45-208 1500 230

Why does ball mill grinder attract so many miners to invest?

1.Investment Attractiveness: Ball mills are popular with investors in the mining industry due to their ability to produce fine particle sizes, ease of use, high productivity, straightforward operation, and steady performance, ensuring a promising return on investment.

2.Customizable Grinding Efficiency: The ball mills supplied by Fote Machinery are known for their fine grinding results, typically discharging materials at a fineness of 200 mesh. Importantly, this fineness can be adjusted to suit various process requirements.

3.Enhanced Liner Durability: Commonly used ball mill linings, including high chromium cast iron, low alloy wear-resistant cast steel, and high manganese steel, demonstrate robust wear resistance. This resilience extends the lifespan of the liners, consequently lowering maintenance expenses and improving the overall equipment efficiency for mining operations.

What are the similarities and differences between the rod mill and the ball mill?

Similarities

The working principle is basically the same. Regardless of the ball mill or the rod mill, when the cylinder rotates, the grinding media (ball or rod) installed in the cylinder body are lifted to a certain height, and then they are thrown at a certain linear velocity, so the grinding media causes some impact and crunch to materials of the cylinder body. Finally, the grinding work is finished.

ball mill vs rod mill

Differences

Grinding media: The grinding media inside the cylinder are different. The ball mill media is the ball mill balls. The grinding media of rod mill is a steel section, and the ceramic ball mill is the ceramic ball, as is shown in the following picture.
The rod mill media and ceramic ball mill media

Customer Case — Gold Ball Mill for Tailing Process

We have a customer called Mike Reynolds, in beaver Utah. And he has some dump material at his mine called horseshoe. Because the dump materials do not have high enough grade to get a good recovery, Mike called them as tailing. However, silver and gold metals are still inside and he wants to process the tailings into concentrates again.

This process is simple, by taking sand tailings into a feeder hopper, then relying to a conveyor belt. On the bottom of the feeder, there is a machine that can adjust the amount of sand that’s going onto the belt, so he knows exactly how much material fed into the mill site per hour and it can be adjusted accordingly if needing to go faster or slower.
Gold Ball Mill Machine used for Processing Tailings

After the conveyor belt, sand tailings will going to the ball mill machine, which is a big drum that has steel balls inside about three-quarter-inch around. And every time when drums going around, milling balls fall on top of tailings and crush them into a finer mesh and liberates the metal from the rest tailings.

After the tailing goes through the ball milling machine, it is fed into the machine called shaking table. There are three tables stacked on tope of each other. They are approximately 8 feet by 20 feet, 17 feet high. The tables are used for gravity separation, no chemicals used here, shaking forth and back. Because the weight of gold metal is heavier than the weight of sand, sand waste will be one direction, the heavy metals go to the other direction. At the end, the heavy metals are trapped as concentrates.
Ball Mill Machine for Concentrates making

As one of the well-known ball mill manufacturers in China, FTM Machinery has always been adhering to the purpose of “ integrity-basis and quality-first”, and striving to build the most advanced ore dressing equipment in China. We not only have industrial ball mill, but also manufacture the small ball mill. The small ball mill in our ball mill grinding factory is also for sale in South Africa, zimbabwe, india, philippines, etc. If you want to grind limestone or other materials with small capacity, the small ball mill is prepared for you. We sincerely welcome friends at home and abroad to come and choose the equipment you want.

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