ball mill

Ball Mill

Ball mill is that the key machine to grind the crushed materials. The ball mill machine is wide accustomed method cement, salt product, building material, refractory material, fertilizer, ceramics, and glass, etc. The ball mill, also known as the rod mill, will work in a dry manner or wet way. you choose the operating way of a little ball mill machine according to your material and discharging way.

Working Site Of Wet Type Ball Mill

The work of a wet type ball mill wants water, adding water throughout the grinding work, and it’s primarily utilized in mineral dressing line. A wet-type ball mill will grind ores into pulp, then the pulp may be separated by magnetic separators or flotation cells.
According to the distinction of raw materials, Fote produces the subsequent ball mills: gold ore ball mill machine, metallic element ore ball mill machine, nickel ore ball mill machine, tin ore ball mill machine, copper ore ball mill machine, mineral ball mill machine, andalusite ball mill machine, aluminum ash ball mill machine, molybdenum ball mill machine, and fluorspar ball mill machine.
Since people have completely different demands toward ball mill like structure, technology, and working way, Fote produces the subsequent kinds: overflow ball mill, high-efficient, and energy-conserving ball mill, tube mill, wet ball mill, intermittent ball mill, cement ball mill, ceramic ball mill, and cone ball mill, etc.

How Ball Mill Works?

Through feeder and hollow shaft spiral, raw materials are equally delivered into the primary bin, that has stepped lining plates and completely different steel balls inside. once the drum moves, centrifugal force is created and brings steel balls to a particular height. Then, steel balls suddenly drop to hit or grind raw materials. when being coarsely ground within the first bin, raw materials are delivered into the second bin through the single-wall partition. during this bin, there are flat linear plates and steel balls, which might any grind materials. The finished powders are finally discharged out via grid plate.

Ball Mill

Grinding Balls

The major work of steel ball is for impacting or grinding raw materials. to create raw materials effectively crushed, we should conform to the subsequent rules once confirming graduation.

  1. Steel ball must have sufficient sturdy impacting pressure, that’s without delay associated with the maximum diameter.
  2. Steel ball need to have sufficient times to effect raw materials. The times are associated with the filling rate and average diameter. Under the basis to make sure the impacting pressure and affirm the filling rate, we are able to lower the average diameter and growth numbers to improve the running times and performance of steel balls.
  3. Raw materials need to have sufficient time to stay in a small ball mill. This calls for the steel balls to be able to controlling the flowing velocity of raw materials.
Grinding balls

The high-pressure air blower constantly inhales air at intervals the grinding mill and, in turn, the airflow with crushed materials are delivered to the classifier whose high-speed vane can screen the airflow: the unqualified particle size will fall and come back to the mill for being reground whereas the qualified particle size mixed with air will move into the cyclone powder collector. Most of the qualified powders will fall and exit from the discharging valve at the bottom; a tiny low proportion of the fine powders, with airflow, moves to the mud cleaner and clings to the surface of the filter bags. At constant time, the fine powders clinging to the surface crumple by the sudden vibration of the filter bags, which is caused by the instantly ejected high-pressure gas controlled by the heartbeat valve. The materials from on top of 2 heaps are sent by the conveyor at an all-time low to induce finished powders packed. In addition, filtered clean air is emitted from the air outlet of the muffler within the end.

Advantages and Disadvantages of Ball Mills

AdvantagesDisadvantages
It produces very fine powder (particle size less than or equal to 10 microns).Contamination of product may occur as a result of wear and tear which occurs principally from the balls and partially from the casing.
It is suitable for milling toxic materials since it can be used in a completely enclosed form.High machine noise level especially if the hollow cylinder is made of metal, but much less if the rubber is used.
Has a wide application.Relatively long milling time
It can be used for continuous operation.It is difficult to clean the machine after use
It is used in milling highly abrasive materials.

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