a cement mill (or finish mill in north american usage) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. most cement is currently ground in ball mills.
cement is an efficient tool for fine powder grinding. the ball mill is used to grind many kinds of mine and other materials, or to select the mine. ball mill is widely used in building material, chemical industry, etc. there are two ways of grinding: the dry way and the wet way. it can be divided into tabular type and flowing type according to different expelling mine.
a cement mill is the equipment that used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement. most cement is currently ground in ball mills.
cement clinker is usually ground using a cement ball mill. this is essentially a large rotating drum containing grinding media – normally steel balls. as the drum rotates, the motion of the balls crushes the clinker. the drum rotates approximately once every couple of seconds.
grinding systems are either ‘open circuit’ or ‘closed circuit’. in an open circuit system, the feed rate of incoming clinker is adjusted to achieve the desired fineness of the product. in a closed circuit system, coarse particles are separated from the finer product and returned for further grinding.
this cement ball mill is mainly used in grinding cement finished products and raw materials and also suited to metallurgical, chemical, electricity etc. and other industrial mining enterprises. it could also be used to grind various ore materials and materials that is grindability.
if you want to get quotation of the used cement mill, click here to contact us!
used cement mill working principle
zenith is the manufacturer and supplier of cement ball mills used in cement industry, in china. sbm has manufactured and supplied many kinds of ball mills for grinding raw material, coal and clinker. process engineering as well the mechanical design of these mills is done with the help of know-how absorbed during long experienced & on hand experience of engineers technocrats & constructors.
cement ball mill, a horizontal type and tubular running device, has two warehouses. the material enters spirally and evenly the first warehouse of the milling machine along the input material hollow axis by input material device. in this warehouse, there is a ladder scaleboard or ripple scaleboard, and different specification steel balls are installed on the scaleboard, when the barrel body rotates and then produces centrifugal force ,at this time , the steel ball is carried to some height and falls down to make the material heavy striked and grinded. after being grinded coarsely in the first warehouse, the material then enters the second warehouse for regrinding with the steel ball and scaleboard. in the end, the powder is discharged by output material board and the final products are completed.
used cement mill features
1. strong adaptability;
2. continuous produce;
3. broken rate large;
4. easy to adjust the product grinding fineness etc;
5. it can not only produce with wet type, but also grind and dry simultaneously.
used cement mill technical data
|specification (dia×length)||rotating speed(r/min)||feed size(mm)||capacity(t/h)||grinding media load(t)||main motor||main reducer||weight(t)|
|model||power(kw)||rotating speed(r.p.m)||model||reduction ratio|
|φ2.4×9||20.91||≤25||23～25 closed circuit||50||tr1512-8||570||740||zd80-9||5||91|
|φ2.4×11||21||≤25||open circuit 19～24closed circuit 22～28||6265||yr710-8/1180||710||740||jdx630||5.6||125|
|φ2.4×12||21||≤25||open circuit18～20closed circuit 21～23||6365||yr800-8/1180||800||740||mby710||6.3||127|
|φ2.4×13||21||≤25||open circuit21～22closed circuit 24～26||6668||yr800-8/1180||800||740||mby710||6.3||131|
used cement mill note
cement mill repair and maintenance are crucial for assuring manufacture efficiency. if not maintained properly, ball mill run-time will be reduced causing substantial economic losses.
1. the operators must be qualified with the required technical knowledge, received technical training and fully understand the operating principle, regulations of the ball mill.
2. the operators should follow the operate principle and lubricate the requirement parts marked in lubrication picture. untreated waste oil may not be used and keep lubrication points clean.
3. pay attention to check the temperature of bearing not to exceed 60 and make sure every bolt not loose, no abnormal sound, uniform mining feed, steady water feed, normal current and voltage of motor.
4. to keep surroundings clean where the ball mill run. every party should be clean unless it’s running.