The Siberian Cement Holding Company has been running a program to install modern separators and switching the equipment to a closed cycle operation since 2016.
The first project of the program was successfully completed in 2020 at the cement plant in Iskitim: the company commissioned a separator unit with a bag filter at cement mill No. 6. The purchase and installation of the equipment required about RUB 270 million. Installation of a separator at cement mill No. 5 is also under consideration. If the work begins in 2021, the closed-loop grinding system will be launched in May 2023.
"Over the past decade, there has been a growing demand for high-grade separated cement in the Siberian Federal District, as well as across the country. The product surpasses the quality characteristics of building materials made using an open-grinding cycle. Its share of the Russian and Siberian market is naturally increasing: in 2010 it was 50%, but by the beginning of 2021 it reached 70%. In the future, this trend will only intensify," emphasized Sergey Sheptalin, Executive Vice President of AO Sibcem Holding Company.
The Angarsk Cement and Mining Plant has modernized its closed-loop grinding system with the installation of a new separator at cement mills Nos. 1 and 2. The mills with the separator were put into pilot operation. The total cost of the project is estimated at about RUB 300 million. In 2021 Angarsk-Cement will start upgrading the separator of cement mills No. 6 and 7. According to preliminary data, RUB 276 million will be spent on purchasing the equipment and carrying out the necessary work, and the commissioning of the system is planned by the beginning of the "high" construction season of 2022.
The project of installation and commissioning of the closed cycle cement grinding mill of 4×13,5 m with the production rate of 100 tons/hour will be carried out by the Krasnoyarsk Cement Plant. The process chain will include a cycle complete with transportation, unloading and supply of clinker to the cement mill through the existing warehouse of the existing production facility to the storage and shipment of cement to road and rail transport. In 2021, RUB 278 million will be earmarked for the construction of the facility.
The Topkinsky plant also expects to launch the production of finely ground separated cement, where a closed-loop system will operate at cement mills No. 5 and No. 6. In 2021, design and survey work began, and the basic process equipment was ordered. The forthcoming expenses are tentatively estimated at RUB 300 million.