This article describes one of the modern technological solutions by Siemens to control the rate of induction motor drives with an option to recover the energy back to the grid. The system was specially adapted for use with the mill drives and has a number of advantages,...
The joint implementation of facility modernization projects of Podolsky Cement, part of the CRH group, developed a strong partnership between it and the contractor - ABB (Switzerland). The paper describes the project to install electrical equipment and integrate...
The paper describes the construction project for the Jizzakh cement plant of the Uzbek AO Almalyk MMC, commissioned in 2014. The plant with a production capacity of 350 kt of white or 760 kt of gray cement a year is operating by the dry method. Information about the pro...
The effect of ammonium bifluoride additive on the chemical reactivity of raw cement mixes was examined. It was found that the induction of 0.3-0.7% of the mineralizer additive makes it possible to intensify the absorption of calcium oxide during burning of raw mixes...
The kinetics of the cement hydration depending on the used filler has been investigated as well as the properties of obtained cement stone. The addition of fine quartz, results in an acceleration of the clinker reaction. The replacement of the fine quartz by the combina...
Influence of C-S-H-nuclei on Portland cement hydration rate has been investigated. C-S-H-seeds were prepared by mechanochemical synthesis and by sol-gel processes. The specific surface area of C-S-H-seeds has a major impact on the ability of the seeds to accelerate ceme...
Ukrainian cement industry. Results of operations in the 1st nine months of 2014.
The paper describes the activities of the organization Cement Sustainability Initiative, CSI, of the World Business Council for Sustainable Development, WBCSD. In 2002, the CSI has adopted a program of action - the representatives of the industry have teamed up to study...
Telescopic loading devices for the cement industry, developed and produced by HENNLICH group of companies, are discussed. This equipment addresses the problem of automated dust-free loading of cement.
Preparing the ideal representative sample is one of the most important steps to ensure the accuracy of the quantitative XRD analysis. The preferred orientation in mineral samples with particles of columnar or plate-like shape can affect the correctness of the measuremen...
