Vertical roller mills and ball mills are the main milling equipments that are widely discussed in cement production lines, but the electricity consumption of grinding equipment during grinding can account for 65% to 75% of the total electricity consumption of cement production, plus The demand for energy saving and emission reduction is becoming more and more strict, and the grinding system will be an important part of the implementation of energy saving and consumption reduction in cement production lines. For cement companies, tapping the energy-saving potential of the grinding system has become key.
In the major systems of the grinding system, the energy-saving effect of the Vertical Roller Mill system has received much attention and recognition. In recent years, the discussion of the “ball-free trend” has been a typical representative. Some experts believe that cement vertical roller mill as two new, high-efficiency, energy-saving grinding equipment, is the mainstream equipment in the future cement production, will certainly be more developed and popularized, using steel balls and ball mills for grinding era Will end. For this point of view, Gao Changming, a senior consultant of China Cement Network, agreed in the article "Review of the application history of vertical roller mill in my cement industry". He said that in cement grinding, the energy-saving type of cement, cement capacity and total weight of system equipment The comprehensive advantages of system installed capacity and unit installed capacity are destined to replace the objective development law of traditional ball mills.
In the meantime, more than 70% of the cement production manufacturers choose vertical grinding, and only 8% of the manufacturers choose. Compared with the previous, the cement vertical grinding has gained more and more recognition, but far below the level. . The reason is mainly because many cement companies have insufficient understanding of cement vertical grinding, and believe that the so-called vertical grinding cement performance is "poor" than ball milling cement. This misunderstanding has also happened in developed countries. However, after research, the developed family found that, in fact, the essence of this problem is due to the emergence of vertical grinding cement. There are two need between cement enterprises, commercial concrete enterprises and construction enterprises. The process of coordinating and arranging appropriateness is a new problem that arises in the progress of science and technology and can be properly solved or withdrawn. According to the relevant research experiments and a large number of production practice results, for every two specific cement vertical roller mills, the cement-to-market coordination period between the two produced concrete mills is about three months. It will not exceed 6 months, so it is actually a problem that has already occurred and has been solved. The cement industry inside cannot be denied the cement vertical roller mill because of this misunderstanding.