Recently, the China Building Materials Machinery Industry Association announced the 14th National Building Materials Machinery Industry Technology Innovation Award winning projects, and the Jidong Equipment R&D Center’s “Research on Vertical Mill Grinding Curve for Production Increase and Consumption Reduction” project won the second prize.

Relying on the strong industrial foundation of BBMG Jidong Cement and the exquisite surfacing technology of Jidong Wekeley Company, the R&D center summarizes the form of vertical grinding rollers, grinding rollers and liner wear conditions of many cement enterprises, and focuses on the production process. For outstanding problems such as fast welding layer wear and unstable initial output after surfacing, theoretical analysis and solution demonstration are carried out to find the optimal vertical grinding curve. The main innovations of this research project: First, design drawings according to the actual working material layer height, increase the effective grinding area of ​​the vertical mill; second, make appropriate adjustments according to the wear curve of the roller sleeve and liner at the highest output to ensure the initial output after the vertical mill surfacing. At its peak.

By increasing the effective grinding area of ​​the vertical mill and extending the wear curve of the roller sleeve liner, the service life of the roller sleeve liner can be significantly improved, and the area and form of the air ring can be adjusted according to the change of the slag discharge volume, so as to reduce the internal pressure difference of the mill, and achieve the increase in production and consumption. the goal of. The R&D center integrated the actual effects of all aspects of the project, improved the surfacing detection and air ring optimization plan, and formed strong technical support for the maintenance of the vertical mill of the cement enterprise and the increase in production and consumption.