GERMAN TECHNOLOGY
need to drill, blast, load and primary crush is possible. Along with drastically reduced washing costs and processes, product yields are significantly increased, making for a machine with attractive operational costs and production rate capabilities.”
Wirtgen South Africa’ s 2200 SM trials began at two different open-cast coal mine sites in Mpumalanga. Of the mined material, 96 % was < 53 mm, and fines content( that is < 1 mm size product) was less than 14 % without the need for drilling, blasting and primary crushing.
Both sites were prepared by cleaning out blocks measuring about 50 m x 100 m directly on the coal seam, after which the 2200 SM cut and crushed the coal and loaded it directly onto the mines’ 40 t articulated dump trucks for hauling to the final stockpile.
According to Wirtgen South Africa, production rates reached over 800 t / h in most cases, and, after taking into account the final effective production rates after a shift including standard production stoppages and delays, the average production rate was more than 400 t / h.
Newby stated:“ The machine was also put to the test in sandstone interburden and with great results. This means that thin seams of coal, waste and interburden can be effectively mined selectively, easily separating the product from the waste.”
Wirtgen South Africa’ s final demonstration of the 2200 SM took place at another open-cast coal mine in Delmas with the primary objective to improve the yield at the production plant.“ The 2200 SM Surface Miner mined highly selectively, separating coal from waste and ensuring that good, clean coal was sent to the plant with minimal contamination and no crushing required,” said Newby.“ Once again, the machine proved its worth in this context, and mine management expressed its satisfaction with the machine’ s performance, committing to implement the 2200 SM in future projects.”
Turnkey solutions for analysis tasks
Germany’ s apc analytics develops and manufactures sampling, sample processing and analysing equipment for industrial use. Apart from planning, producing, installing and commissioning these fully automatic samplers and analysers, apc analytics also offers individual solutions for analytical problems. Furthermore, apc analytics acts as a service provider and manufacturer in the fields of automation engineering, control cabinet construction and special machinery. The equipment designed and produced by apc analytics has been used in the mining and mineral processing industries as well as in thermal power plants since more than 30 years. apc’ s SOLAS system is a fully automatic sampling and analysing system for the rapid determination of substances in all kinds of bulk goods. Typical installation sites for the equipment are loading, conveying and processing facilities in open-cast and underground mines. In Germany SOLAS is used in nearly all the large lignite-fired power plants and by all coal producing companies. With 25 sold and installed systems only in Germany it’ s the dominant coal analyser in Germany. Furthermore, SOLAS systems have been installed in the Czech Republic, USA, Brazil and China. The SOLAS principles are as follows:
■ Pneumatic sample transport system, multiple sampling points and processes possible
■ EDXRF-Analyser with a low energy X-ray tube, no radioisotope material, no protection areas required, dose equivalents not measurable
■ SOLAS can measure sulphur, ash, aluminum, silicon, chlorine, potassium, calcium, titanium, manganese, iron, etc. In the basic version BTU is derived from the mentioned data by using an ash-based model
■ A rapid determination with a measuring result every 1-2 minutes gives a real-time trend of the conveyed material’ s ingredients. Furthermore, SOLAS can be combined with sampling- and sample preparation modules to a plant, individually designed to fulfil the customers’ requirements. The complete system is offered as a turnkey solution as apc takes the full project control and responsibility( from design and erection works up to initialising and support services).
HAZEMAG acquired key dhms mining assets
In a major consolidation of Germany’ s underground mining technology suppliers, HAZEMAG recently acquired the key rights to Deilmann-Haniel Mining Systems( dhms) GmbH mining equipment.
The company stated:“ To further strengthen its existing range of world-leading mining brands- MinPro, Haus Herr, Salzgitter, Turmag and Perforator- HAZEMAG recently acquired the manufacturing, sales and in-field service rights of Deilmann-Haniel Mining Systems( dhms) GmbH mining equipment.” The deal also included the purchase of a significant number of in-service machines such as loaders, drill jumbos, long hole drill rigs and shaft sinking equipment. HAZEMAG Mining GmbH will be responsible for all aspects of the new equipment.
“ By adding this range to its comprehensive stable of world-renowned products, HAZEMAG has underlined the importance of maximising plant output in today’ s complex mining operations. Its commitment to increasing plant profitability by providing the right equipment for
every job, delivering flexible process management and proactively searching for opportunities to remove unnecessary expenses, continues to give its customers a significant competitive advantage. For over 175 years HAZEMAG has, across all five continents, built a redoubtable reputation as a highly specialised supplier of specialised mining products, priding itself on technical competence, reliability and on being a customer-focused partner of choice for the global mining industry.”
Bulk handling and IPCC solutions
For the Moroccan phosphate mining giant OCP, FAM in 2017 delivered equipment for its new El Halassa mining project. FAM provided engineering, construction and manufacturing services, as well as delivery and commissioning of two lines each consisting of a semi-mobile inpit crushing plant( including an apron feeder AF 2000x15.5, roller screen RR 1945, double roller crusher ZWB 2015 HS), a shiftable conveyor and a mobile stacker 1051.31U for processing phosphate ore at a rate of 2,300 t / h.
In recent years, TAKRAF GmbH, operating out of Leipzig – Germany, has been leveraging its competence as an equipment supplier with a focus on integrated mining and materials handling systems. The early participation of its mining and application engineers in studies and basic engineering it says has added enormous value to projects, especially to those boasting a high degree of complexity.“ It is a significant challenge to find the right location and sequence of re-locations of a crushing station in a developing mine. In this instance, one needs to delicately balance mine planning know-how together with the optimised layout of equipment, conveyors and downstream equipment. Getting this right is critical to a mine’ s long-term and sustainable success. Leveraging decades of experience and adopting a holistic approach to this very challenge has resulted in TAKRAF being highly adept at balancing all critical areas and working simultaneously across these areas to find the most feasible solutions very quickly.”
This approach was very successful in 2017, when TAKRAF was awarded an IPCC system contract for the Russian minerals industry consisting of semi-mobile crushing, numerous in-pit and in-plant conveyors and finally a stockpile with bucket wheel reclaiming and stacking technology. Soon after the recent Russian project award, a client in Mongolia decided to purchase TAKRAF sizers for multistage coal crushing. After various discussions, the project’ s scope was extended to include a complete crushing & conveying system. The principal driver for this project award was TAKRAF’ s new sizing technology that allows for efficient machine maintenance and hence an
14 International Mining | MARCH 2018