Issue 06-07/2009

On 27th March 2009 the Mines and Quarries Employers’ Liability Insurance Association awarded the winners of the current sponsorship prizes...

About 750 participants accepted the invitation of the Em- ployers’ Association of the Cement and Building Materials Industry (azb) and came to Beckum...

Over 130 participants gathered for the “Cement Chemistry” conference at the VDZ (German Cement Works Association) in Düsseldorf on 01.04.2009 to...

Belt conveyor systems save energy and protect the climate in material handling. Compared to traditional means of conveyance, they consume only a...

The Quarries Trade Association (StBG) awards prizes to particularly innovative manufacturers, which, for example, clearly increase the safety during...

Lime plays an important role in environmental protection. Not only due to its properties but also due to its natural occurrence, it is suitable and...

The German cement industry considers the first and second economic stimulus packages of the Federal Government to be appropriate approaches to...

On 23.04.2009, the official start-up of the first ever Roto ­Classic® Packer [1–2] from Haver & Boecker took place at the Phoenix Cement Works Krogbeumker GmbH & Co. KG in Beckum/Germany (Fig. 1). This cement plant has been family owned since its founding in 1914 (Fig. 2). Value has always been placed on keeping the plant at the most modern technical levels. Cements ranging from CEM I to CEM III are produced, as are special cements and building material products. Stone coal is the primary source of energy used for processing. In addition other fuels like production-specific industrial waste and animal meal with substitution rates of up to 60  % are used. The plant’s main markets are predominantly...

1 Introduction CFD (Computational Fluid Dynamics) makes it possible to predict system behaviour in detail far exceeding traditional and costly test...

Extension and upgrading measures for the wet production of gypsum wallboards with an investment volume of approximately 3 million € have been carried...

Secondary fuels are being used with increasing frequency in the cement industry. However, the fact that they have significantly different properties...

Summary: Material analysis is undergoing transformation from a quality assurance measure to a process control tool. This is being promoted not only by...

Summary: China consumed 162.6 million tons of lime in 2006. It emits 1.17 tons of CO2 per ton of lime produced, which is about 56 % higher than that...

Summary: Long-unused know-how relating to gas- and oil-operated lime shaft kilns was called on to satisfy market requirements. It has then been...

Summary: The lime textures have an important impact on the carbon dioxide flux transported through the material during calcination. Therefore the...