Ball mill has great advantages in crushing equipment
The ball mill is generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system, with oversize material continuously being recalculated back into the mill to be reduced. Various classifier, such as screens, spiral classifiers, cyclones and air classifiers are used for classifying the discharge from ball mills. Ball mill is an efficient tool for grinding many materials into fine powder. The ball mill is used to grind many kinds of mine and other materials, or to select the mine. The Ball Mill is widely used in powder-making production line including cement, silicate, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc.
Ball mill is the key equipment of regrinding the material after the materials being broken. It is used in grinding all kinds of ores and other materials, and is widely used in ore-dressing, building materials and chemical and other industries. The way of grinding includes dry and wet type. According to different ways of the outputting of ores, it is classified as the grid type and the overflow type.
So what are the merits and demerits of the ball mill in the grinding process?
Advantages:
(1)Sand making machine, jaw crusher and other sand making equipment are all of high adaptability to materials so that they can meet the demand of large-scale industrial production;
(2) The big ratio of reduction can reach 300 more, and it is easy to adjust the size of the product;
(3)It can operate in way of wet as well as dry, and it can dry, grind, mixed operate materials at one time; rotary kiln:http://www.hx-crushers.com/p66.html
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(4)The structure of Flour mill, Raymond mill is simple but strong and reliable in operation;
(5)With good sealing it can operate at a negative pressure. It is easy to manage and maintain, and can run continuously at a long time.
On the other hand, there are also many disadvantages of ball mill; experts have been engaged in improving and overcoming those demerits several years before.
(1)The efficiency is low with large consumption, the effective power only accounts for about 2% of the total power consumption;
(2)It needs large investment at one time because of its huge size such as some large flotation crusher or sorting machine, rotary kiln, ore-dressing equipment weighing hundreds of tons ;
(3)It also needs to install the expensive reduction system;
Ball mill’s Double-row self-aligning spherical roller bearing replaces Babbitt-lined bearing. Friction resistance is significantly lowered down, effortless to begin and 20-30% of power is saved. Ball grinder’s Grooved Magnesium Kiln and ringed liner raises contacting surface area in between balls and ores, enhancing milling impact and saving power via its lifting impact for the materials. Ball grinder’s All-in-one frame is employed in middle-sized or small-sized machinery, facilitating engineering design and gear installation. Ball mill’s big discharging outlet and large capacity, discharge coarse particles, usually employed in very first phase Rotary kiln milling. The Energy-saving Cone Ball Mill may be employed for grinding particles with the procedure of material mineral resources, for instance gold, silver, iron, copper, lead, zinc etc., and non-metal mineral resources.
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