The German publishing house VGE Verlag GmbH – Verlag Glückauf, Essen, has been serving the mining industry – or more specifically the deep mining industry – for more than 145 years and is in many respects Germany’s most important trade publication. Glückauf is currently published in German, with versions also available in Russian and Chinese.

If you are interested in one of the following articles of the current issue #2010, please send us an e-mail, and we will send you a pdf of the translated english text for a special price!

Horz and Müller: Converter-controlled belt conveyor systems under the most difficult conditions

Panel 572 is located at a depth of 1,200 m in the Girondelle seam at the West mine. The panel has a mean thickness of 2.5 m and is designed as a shearer loader face with a length of 460 m. Coal is conveyed to the shaft by six belts with a total length of about 6 km and a total lifting height of 396 m. The main conveyor belt 1 with an installed power of 3 MW links the panel to a bunker. Conveyor belts 2 to 4 each with 500 kW drive power have operated in a stable manner since the start of working of the panel. Due to in-seam drivage with a selective-cut machine of type AM 85 an area with a marked trough was produced in the coal conveyor road. This area is traversed by belt 5. The planning and control of the conveyor belt in this difficult geological environment impose high demands on drive and control technology. To ensure stable operation under different loads a raft of measures was resolved and implemented. The contribution examines the problem and describes the implemented measures in detail.

Hüppe and Gießelmann: Further development of transport technology with diesel trolleys with the main emphasis on ”heavy transports in development roadways“

Further developments and innovations in transport technology as well as optimisation of the entire supply chain are an important guarantee for efficient transport logistics at the Auguste Victoria mine. This can be achieved only by stable processes and their continuous improvement with the participation of the employees, who make this possible with heart, ideas and total commitment. In accordance words the words of Philip Rosenthal: ”Who ceases to improve has ceased to be good“.

Hachmann: Installation of a 1,000 m long cooling water pipe in the Rossenray shaft of the West mine

The cooling water pipe in the Rossenray shaft of the West mine described in the contribution is about 1,000 m long and is secured on only one support in the shaft. This main support is located at a depth of about 500 m. The pipe section above the support is in a fixed position, whereas the section below it is suspended. The pipe sections are connected by the ZSM quick-closing system, in which two roller chains movable one above the other are pushed into the flange system to be connected, the force subsequently being transmitted by thrust. A flange is connected within only 8 s.

Saelhoff: Implementing the new EU emission regulations: the challenge facing mining equipment manufacturers

Vehicles for today’s deep mining industry are now subject to the same exhaust gas restrictions as their off-road counterparts above ground. The space constraints imposed on mining vehicles mean that considerable effort and expense is needed to fit the coolers and other components needed for the exhaust-gas aftertreatment system. By taking large-capacity LHD vehicles as an example the paper examines the kind of constructive measures now being contemplated so that even mining machinery of this kind can be equipped with SCR technology.

Meyering: Procyon 1 – First prototype worldwide for storage spent nuclear fuel rods

HFH Herbst has designed and built a unique machine for storage of spent highly radioactive nuclear fuel rods within two years for the Swedish SKB. The vehicle (total weight 98 t) can be operated underground without a driver. Herbst was able to bring to this project almost 30 years of experience in the complementation of vehicle projects for the nuclear industry. The Procyon 1 already proved its efficiency impressively in several hundred storage processes and operates with absolute reliability.

Bollingerfehr and Pöhler: Concept for an ultimate storage facility for heatgenerating radioactive waste in clay stone in Germany

According to the German reference ultimate storage concept heat-generating radioactive waste from the operation of nuclear power stations should be stored permanently maintenance-free and in a non-recoverable manner in a salt formation. Within the framework of
investigations into the utilisation of alternative host rocks a concept for an ultimate storage facility in clay stone was developed in an R & D project. For this purpose all important aspects of the design, development, operation and shutdown were taken into account for a model region in northern Germany. It was established that storage in 50 m deep vertical boreholes in a mine at a depth of about 350 m appears to be the most practical solution for an ultimate storage facility in clay stone. Compared to the reference concept in salt an ultimate storage facility in clay stone requires solid support of all mine openings with steel arches or shotcrete. Because of the lower maximum permissible temperature in the backfilling material (bentonite) the area required for the ultimate storage facility is about five times larger. A period of more than 100 years is estimated from survey to shutdown.

Eikhoff and Kuhn: Mining logistics – unique know-how ”Made in Germany”

In conjunction with the Fraunhofer Institute for Material Flow and Logistics RAG has analysed and optimised its supply chain in recent years. The entire logistics supply of the company from the planning of material management to the re-use of material was dealt with. The results are currently being linked to each other and extended by technical components such as machine communication, visualisation and evaluation and diagnostic systems to an ”integrated control and communication centre for transport logistics“. With the aid of the successful implementation of the overall concept it is now possible to extend logistics solution from the mining industry to a worldwide export hit.

Maaßen and Schiffer: The German lignite industry in 2009

Indigenous lignite production decreased by 3.1 % from 175.3 Mill. t in 2008 to 169,9 Mill. t in 2009. Of the output achieved in 2009, which corresponds to a calorific value of 52.2 Mill. t coal units, 153.4 Mill. t (about 90 %) were used in power stations for general supply, i.e. 3.7 % less than in the previous year. 12.8 Mill. t were used in the works of the lignite mining industry for manufacture of solid products and 2.8 Mill. t for electricity generation in mine power stations. Other raw coal sales and changes in stocks accounted for 0.9 Mill. t. In 2009 lignite contributed 24.5 % to the total electricity generation in Germany.

Scherschel and Pasche: Centenary of the birth of Bernhard Sann – the founder of modern mining research

When Bernhard Sann was offered a position at the RWTH Aachen in 1961 not only was the Institute for Mining Science II – mechanical extraction technology and mining equipment – established, but the foundation stone was also laid for modern mining research. On the occasion of the centenary of the birth of its first director, Professor Dr.-Ing. Dr. Mont. Dr. techn. Dr. E.h. Bernhard Sann, some lifetime achievements of this natural scientist will be remembered on 16 June. As a teacher he warned of the need to cultivate the basic subjects and as a researcher he endeavoured to implement the results of his investigations in practice, be it in extraction and ventilation technology in the mining industry or in the aircraft industry.

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