Reduction of chromates in dry mortar formulation and in cements

Throughout the European Union since January 2005, the reduction of morbid water soluble chromates in cements and their follow-up products is compulsory. The various chromate reductors - owing to their particular chemistry and physical characteristics - lead to completel...

The influence of the degree of hydrophobicity on the physical-mechanical properties of cement and cement grout

The article presents the results of an investigation of the hydrophobic cement obtained by adding a water-repelling admix. A study was made of the admix effect on the cement particle-size distribution, water vapour sorption capacity and matrix strength properties are al...

OMZ Mining Equipment and Technology (Uralmash-Izhora Group)

This presentation describes the products and services offered by OMZ Mining Equipment and Technology (Uralmash-Izhora Group) owned by Obyedinennye Mashinostroitelnye Zavody (OMZ) Corporation – the leading company in the field of heavy engineering in Russ...

A new Russian hydraulic excavator

The article reviews the performance and operation efficiency of a new hydraulic excavator produced by Obyedinennye Mashinostroitelynye Zavody (OMZ) Corporation. It also compares said excavator with similar international equipment.

Roller grinders by OAO TyazhMash

The article considers the engineering performance ot roller press-breakers, developed by ОАО Tyazhmash. The use of such breakers for preliminary material grinding before feeding the material into the mill is an efficient way of increasing the equipment capacity and savi...

New generation mill

The article cites the results of the operation of a cement mill equipped with a separator and supplied by FLSmidth (Denmark) at OAO SebryakovCement. The 7 months of mill operation demonstrated its high engineering-and-economical performance.

Aerodynamic features of a rotary kiln burner with multijet outflow of the primary air

At material calcining in rotary kilns the burner design is one of the most important aspects defining the kiln line engineering-and-economical performance and product quality. In the last 15 years, M.A.S. burner (Mono Airduct System - a system with one primary air c...

Smoke exhauster drive control

The article discusses the efficiency of application of the variable-frequency drive in controlling the smoke exhauster capacity. It also cites such basic drive characteristics that enable the application of conventional motors without their capacity loss.

Drives and drive mechanism by Getriebebau NORD

The main assortment of Getriebebau NORD (Germany) includes gears, electric motors, servo drives and electronic drive equipment. The article describes the characteristics of the equipment and provides data of its efficiency.

Equipment for aggregates bagging, palletizing and shipping

The article describes the assortment of Claudius Peters equipment for aggregates bagging and palletizing. In addition it shows the advantages of modular design of such equipment and examples of its application.

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