Optimization and
Transformation of Production Process for Cement Semi-
final Grinding System
1. Washi Cement Group Co., Ltd. , Wuhan Hubei
430070, China;
2. School of Materials Science and Engineering, Wuhan University
of Technology, Wuhan Hubei 430070, China
Due to factors
such as early input of roller presses, small selection, the cement semi-final
grinding system has problems such as high power consumption and low output. By
combining the existing two small roller presses with one ball mill to form a
"two drag one" double closed circuit semi- final grinding system, and
adding a large roller press system, the energy efficiency utilization rate of
the roller press has been improved, the operating pressure deviation has been
improved, and the crushing capacity has been enhanced. At the same time, by
changing the internal structure of the ball mill from two chambers to three
chambers, using ceramic ball grinding bodies in the third chamber, replacing
anti blocking ball mill partition plates and discharge grate plates, optimizing
activation rings, etc., the cement particle grading has been optimized. The
comprehensive power consumption of cement grinding has been stabilized at
around 22kW·h/t, and the system output has been increased from 190t/h to
325~335t/h, providing an important technical approach for energy conservation
and carbon reduction in cement production.
