BALL MILL
Application Range: Ball Mill Powder Grinding Equipment can be widely used in industry of calcium carbonate grinding processing, gypsum powder processing, power plant desulfurization, non-metallic mineral milling, pulverized coal preparation.
Application Materials: Limestone, calcite, calcium carbonate, dolomite, barite, talc, gypsum, diabase, quartz, bentonite, etc…
Processing Capacity: 15~55 t/h
Feeding Size: 4≤25 mm
Introduction
High efficiency NT-Series Ball Mill has been designed with the merits of open circuit grinding system and important renovations on traditional ball mills. Ball mill is the key equipment for grinding the material after being broken.
Ball mills are widely used in cement, silicate products, new building materials, refractory materials, fertilizers, black and non-ferrous metal dressings, and glass ceramics. The ball mill is suitable for grinding various ores and other materials and is widely used in mineral processing, building materials and chemical industries.
The ball mills can be divided into dry ball mill and wet ball mill according to the process conditions. According to different materials will choose different grinding sub. In addition, the grinding sub can be roughly divided into metal and non – metal categories. The grinding sub of ball mill is steel ball, the grinding sub of rod mill is a steel bar, and the grinding sub of ceramic ball mill is ceramics.
The Ceramic Ball Mill Powder Grinding Equipment is a new energy-saving ball mill developed by domestic mineral processing machinery experts. Which improves the production capacity and crushing efficiency. But also expands the application range, from limestone to basalt, from stone production to various ore crushing. However, It can provide high milling performance in a variety of medium, fine and superfine operations.
When selecting a ceramic ball mill, investors shall take the material property, capacity requirements, liner material and the grinding media details into consideration. The grinding fineness of material can be adjusted by grinding time. Above all those factors, grinding media is very important. Suitable ceramic ball mill with calculated grinding media will improve the grinding efficiency.
The wet ball mill refers to grinding the raw material after humidification and has high fineness and good beneficiation effect. The discharge port of the device is a trumpet-shaped, built-in screw device which is convenient for discharging materials. At present, the sales of wet mills in the mill market occupy an important position which is a popular grinding equipment for the majority of users.
Design
NT-Series Ball Mill Powder Grinding Equipment has adopted special integrated diaphragm and discharge grate to adjust material levels in every chamber to increase air ventilation which improve conditions inside the ball mill. Meanwhile it is using new type of lining plate. Regulate the mill rotation speed. Optimize design of pinion gear and increases the bearing lubrication parameters. Similarly, to increase its operational stability and grinding efficiency.
In practical use the output of the ball mill is increased about 20% and the power consumption has been reduced 10%-12% as compared to other same size ball mills. NT-Series Ball Mill has been awarded as “well known brand product” of China building material machinery Industry.
APPLICATION RANGE
NT-Series Ball Mill is the key equipment for grinding after the crushing process.
It is widely used in the manufacturing industries. Such as coal, cement, silicate, new building material, refractory material, fertilizer, ferrous metal, non-ferrous metal (like quartz, feldspar, silica sand) and glass ceramics.
Which can be used for the dry and wet grinding for all kinds of ores and other grind-able materials.
BALL MILL STRUCTURE
The ball mill mainly consists of six parts: the feeding device, the supporting device, the rotating part, the discharging device, the transmission gearbox and cooling device.
Moreover, according to different materials and discharging methods, there are dry ball mills and wet ball mills for user choice.
WORKING PRINCIPLE OF BALL MILL
Ball mill is a horizontal cylinder rotating equipment. The material is uniformly fed into the first chamber of the mill by the feeding device through the hollow shaft. The chamber has a liner steps inside the surface of the mill.
The motor drives the ball mill to rotate, the rotating cylinder produces centrifugal force to bring the steel ball to a certain height and then falls by gravitational force. Which causes the collision between steel balls and materials in the cylindrical cavity and the heavy impact crushes the material in small particles.
After the material roughly grinding in the first chamber, the powder material enters the second chamber through the single-layer compartment board. The chamber is again equipped with a flat lining plates and steel balls inside.
The powder material is further grinded until it reaches the users requirements size. Finally the powder is discharged through the discharge raft to complete the grinding operation.
Features and advantages
(1) Low energy consumption with high output.
(2) Wet process or dry process available, with the function of drying and grinding.
(3) Can be used in open-circuit grinding or closed-circuit grinding system.
(4) Good sealing, operate under negative pressure without dust flying in the working site.
(5) Meet the demand of modernized large-scale production.
(6) The lining plate and the grinding body are made of alumina ceramics, quartz, special materials, and the hard minerals are designed with no iron pollution, which reduces the breakage rate and improves the grinding efficiency.
(7) The ultra-fine ball mill and classifier form a closed system, which is transported under negative pressure without dust and reduces damage to the human body.
SPECIFICATION DATA
