Analysis of vertical mill and roller press cement contrast

In the international cement Summit on 2014, whether it is business or exhibition industry experts, have called for the second generation of new cement grinding equipment reform, therefore, the reporter visited a number of China in international cement technology and equipment exhibition of the enterprise after the discovery, application and market of cement has been excavated.

Also known as clinker cement vertical roller mill, with its simple operation, convenient repair, obvious power saving effect is used in many foreign cement production line, good results in the International Conference on Toure Saif on 2009, to the experts reached a consensus: vertical roller mill grinding equipment is advanced, practical, advanced economy.

However, due to technical limitations and the lack of understanding of the cement mill, in China market is not completely open, only part of the cement companies to try, and the conclusions are as follows:

1, although the system of roller press with less investment, but the latter device, it covers an area of large, high building cost, the overall count down, vertical mill and roller press is a total investment. When the vertical mill cement clinker cement, in addition, the highest 30% can be added to the fly ash and slag, but the ball fly ash in more than 10%, so the waste recycling can largely reduce the enterprise environmental protection tax.

2, cement compared with roller press and remarkable power saving, per ton of cement roller press process is saving 3-5, the whole system power consumption than grinding system with roller press saving 15kWh/t. That is to say: a 5000TPD cement clinker grinding only such 15kWh/t X 5000t/d X: 300D = 22500000 kWh (that is, a year can save 22500000 of cement clinker grinding degree), the energy saving effect is very obvious.

Cement vertical mill grinding, drying, classification on the whole, the auxiliary equipment, one machine with multiple functions, small occupation area, little dust pollution, is a new generation of new environment-friendly cement grinding equipment, in line with the national energy saving policy.