|
It is of significance to grind the fine materials in the cement industry with the cement mill, which is special. In this article, the experiences in grinding the raw materials with the size of no more than 25 mm in an A-TOX roller mill in Huaxin Cement Plant are presented. The author maintains that the key to the stable operation is to adjust the grinding force and increase the water spray. The tests show that, when the fine materials are ground, the power consumption can be reduced and the mill throughput can be increased.
1, ore hardness
The ore hardness is not the same, this factor to the same ore is fixed, but it also cannot be adjusted. In production, under the premise of beneficiation technology requirements we should reasonability match mine, as much as possible to make ore size uniform, and the lump, powder ore ratio is reasonable and stable. In addition, in mill belt to the mine at the belt due to prolonged wear and tear may drain the mine, most cases leave out the fine ore, this part of the drain mine must be as much as possible to timely fill added to the mill for a long time stacking, focus on the add will cause the ball milling ore is uneven, causing production instability.
2, particle size, and lattice sieve
The ball mill worker must supervise the broken system. If the particle size has changes in the production, he should immediately reflect this situation to the crushing workshop. Eventually the more finesse of particle size, the better effect of grinding.
The mechanism and fracture energy of mechanical method about preparation of ultrafine powder as viewed from particle size, means and particular properties of ultrafine grinding are inverts-gated, It is concluded that compression and attribution are the better methods of ultrafine grinding; On the basis of this, the mechanism of exhaustion grinding and energy consume are presented. According to the theory of linear elastic fracture meclianics, the fracture energy of particle is defined as elastics tress energy when the particle has been fracture. The physical model of grinding in machine is established. The relationship between particle sizes and grinding energy consumes is derived. The two new concepts of grinding limit particle size and economical grinding particle size are presented
Cement making plant : http://www.best-crushers.com/cementmill.htm
Mobile impact crusher : http://www.best-crushers.com/impactcrusher.htm
Related Articles -
business,
|
