Requirements placed on high-performance cement silos are discussed. The central cone concept is explained, the design of a multiple-chamber silo is described, and case studies of silo use in the cement industry of North and South American countries are cited. The advant...
The operating principle and main characteristics of a modular compressor unit with a self-cleaning filter cartridge for fine cleaning of input air when sucked into the air tank, designed by OOO Promtekhnologii SPb, are described.
The design and operation of the Horomill® grinder and TSV™ separator developed by Fives FCB (France) are described. These grinders can be used for cement, raw mix, blast furnace slag. As of today, 56 grinders of this type have been installed worldwide. Advantage...
The commissioning of Wirtgen Surface Miner 2500 SM from Wirtgen International GmbH, Germany, in the quarry of the Bolshevik chalk, gaize and clay deposit, which is the raw material base of OAO Volsk-Cement owned by Holcim, one of the world’s largest manufacturers of cem...
A project to switch the three cement mills of Garadagh Cement, operating in an open circuit, to work in a closed circuit, implemented by the Belgian Magotteaux SA, is described. The scope of supply by Magotteaux included XP4® classifiers with an integrated cyclone and a...
Information on newly developed by RHI unmolded refractory materials with a binder on the basis of colloidal silica marketed under the brand names COMPAC SOL and CARSIT SOL is provided. The new refractory concretes containing no cement are easy to use, safe and can withs...
The structure and work of the PAO Ivano-Frankovsk Cement laboratory after production upgrading at the plant are described. Information is provided on the sampling procedures, equipment used, methods of analysis and control. In connection with the development of producti...
As hydration of pure cement pastes proceeds, unhydrated cement particles hydrolyse, hydration products are formed and the degree of hydration continuously increases. Moreover, the ultimate hydration degree mainly depends on the water/cement ratio and can be estimated by...
A description of the research programme performed by FLSmidth (Denmark) — one of the world’s leading suppliers of equipment and technological developments — is provided. The programme is aimed at eight major areas, and will help to strengthen the connection betw...
It is known that clinker containing more than 3% of MgO shows a high resistance to grinding. If barite wastes are added to the raw mix, such clinker will be easier to grind. The duration of grinding is thus reduced, which is true both for the regular clinker and cli...
