Production Introduction

High Quality 20 tons / h Gold Ore Ball Mill Grinding Mill Machine
 

Product Desctription of Ball Mill

Overview of ball mill:
The ball mill is a key equipment for regrinding, which is widely used for cement, silicate product, new type building material, refractory material, chemical fertilizer, black and non-ferrous metal, glass, ceramics and etc. The ball mill can grindore or other materials that can be grinded either by wet process or by dry process.

ball mill is new ball mill according to new concept design which adopts special rolling bearing as support structure of barrel. It solves service life of overload rolling bearing and problem of regulating mental activities, sealing problem under severe environmental condition and barrel movement caused by long working hours.

Ball Mill Working Principle:
The ball mill is a horizontal cylinder rotating device. It is equipped with drive gear which drives the cylinder for rotation in the working process outside the cylinder. There are two chambers. Materials go into the first chamber of the grinding machine spirally and evenly through the feeding hollow shaft from the feeding device, and there are ladder lining plates or ripple lining plates inside the first chamber where there are different kinds of steel balls. When the cylinder rotates, it will produce eccentric force to bring the steel balls to a certain height, the steel balls will fall down to impact and grind the materials.
After being coarsely grinded in the first chamber, the materials will go into the secondary chamber where there are flat lining plates through the single-layer partition board. There are steel balls for further grinding the materials in the lining plate, and steel ball is set inside the second chamber. Materials will be grinded. Finally the powdery materials will be discharged from the discharging grating bar to complete powder grinding operation.
 

Working principle of Ceramic ball mill

Another type of ball mill is specialized in handling ceramic materials. The motor on the ceramic ball mill drives the cylinder rotation through the deceleration device, and then the crushed ore and grinding ball in the cylinder are brought to a certain height by friction and centrifugal force when the cylinder rotates, and after the liner is brought to a certain height due to gravity, it will be thrown and falling and the ore will be gradually crushed under the action of impact and grinding. The crushed stone is discharged through the discharge part.

After the discharged material is classified into a qualified product in the spiral classifier, the coarse sand is returned to the ball mill through the combined feeder to continue grinding. The feeder feeds continuously and evenly, and the ore enters the ceramic ball mill continuously and evenly through the combined feeder, and the ground material is continuously discharged from the ceramic ball mill. Ceramic ball mill is a grinding equipment that can work continuously 24 hours a day.

Internal Structure of Ceramic Ball Mill

Although ceramic liner ball mills and ordinary ball mills have similar shapes and working principles, ceramic liner ball mills have unique advantages in many industries, which are also not available in ordinary ball mills. For example, in the mineral processing industry, many of the grinding processes of raw materials cannot have the participation of iron metal, therwise the quality and value of the finished product will be greatly affected. At this time, it is necessary to choose a mill with ceramic liner. In addition, the ceramic liner is very wear-resistant, the service life is also greatly extended, for the same material, the service life of the ceramic liner ball mill liner can be extended at least several times.

Applicable materials
 

Wet and dry operation, It is used for fine grinding of feldspar, quartz, clay, ore and other raw materials.
 

The Introduction of Air Swept Ball Mill

Air Swept Ball Mill grinds material by rotating a cylinder with steel grinding balls, causing the balls to fall back into the cylinder and onto the material to be ground. The rotation is usually between 4 to 20 revolutions per minute, depending upon the diameter of the mill. The larger the diameter, the slower the rotation. If the peripheral speed of the mill is too great, it begins to act like a centrifuge and the balls do not fall back, but stay on the perimeter of the mill. The point where the mill becomes a centrifuge is called the "Critical Speed", and ball mills usually operate at 65% to 75% of the critical speed.

Working PrincipleThe raw materials are loaded into the mill through the feeding equipment, and the hot air enters the mill through the inlet duct. As the mill cylinder rotates, the coal and hot air exchange heat in the mill. The coal is crushed and ground inside the mill, and at the same time, the fine powder is carried out of the mill through the hot air inside the mill through the discharge device.

Features of Structure

When coal powder is used as fuel in the rotary kiln, the air swept mill is the most ideal equipment for both grinding and drying.
 

Features of Ball Mill
 

1) Ball mill is an efficient tool for grinding many materials into fine powder.
2) The ball mill is used to grind many kinds of mine and other materials, or to select the mine
3) Ball mill is widely used in building material, and chemical industry.
4) There are two ways of grinding: the dry way and the wet way.
5) Ball mill can be divided into tabular type and flowing type according to differentexpelling mine
6) To use the ball mill, the material to be ground is loaded into the neoprene barrel that contains grinding media.
7) As the barrel rotates, the material is crushed between the individual pieces of grinding media that mix and crush the product into fine powder over a period of several hours.
8) The longer the ball mill runs, the finer the powder will be.
9) Ultimate particle size depends entirely on how hard the material you're grinding is, and the time how long the ball mill runs.
10) Our ball mills have been used to grind glass, powder food products, create custom varnishes, make ceramic glaze, powder various chemicals.