Coal Age

FEB 2013

Coal Age Magazine - For nearly 100 years, Coal Age has been the magazine that readers can trust for guidance and insight on this important industry.

Issue link: https://coal.epubxp.com/i/110818

Contents of this Issue

Navigation

Page 42 of 59

bauma preview continued The MTM 6 is able to cut rectangular or horseshoe-shaped cross-sections in addition to circular tunnels with a bore diameter of up to 6 m. This permits the direct boring of the desired tunnel shape, whereas the lower part of a round cross section usually needs to be backfilled where a conventional tunnel boring machine is used. With a flexible bore diameter of up to 6 m, the self-propelled Mobile Tunnel Miner can be used for a variety of applications. The machine is also an innovation in terms of its mobility: it can move flexibly forward using a walking mechanism and backward with a crawler. Thanks to several swivel joints, the turning radius of the 75 m long machine is only 30 m. This means it can master considerably tighter curves than a classic tunnel boring machine that has a turning radius of approximately 500 m under comparable conditions of use. ���We will revolutionize safety and efficiency in underground mining with the new Mobile Tunnel Miner,��� said Einar Br��nlund, CEO, Aker Wirth. ���This innovative technology will improve health, safety and environmental protection significantly and makes working conditions more attractive.��� In contrast to drill and blast, which up until now has been the usual method employed in rock of this strength, tunneling with the MTM requires considerably less work from personnel at the tunnel face. The machine is operated from a central control cabin located on the machine itself. The high degree of automation minimizes contact between personnel and both moving components and rock. Thanks to its flexibility, the MTM can be easily driven away from the tunnel face for maintenance purposes, which also contributes to the safety of operating personnel. mance spectrum from 100 metric tons per hour (mt/h) to 3,000 mt/h. Kleemann���s products are designed to handle the hardest minerals and materials in the mining industry. The company offers single machines or interlinked combinations. Jaw crushers serve as classic primary crushers. The mobile machines��� performance spectrum ranges from 100 to 1,500 mt/h. Robust, high-performance machines with feed capacities from 450 mt/h to up to 1,000 mt/h are used for traditional quarry applications. Secondary crusher units such as track-driven impact and cone crushers are electrically interlocked to work in tandem with primary crushers and screens. The screen area of the chain-driven screening machines ranges from 7 to 18.4 m��. Their performance spectrum runs all the way up to 1,000 mt/h, making them well-suited for demanding tasks and material that is difficult to screen. Beumer Conveyors to Transload Iron Ore in Malaysia Conveyor Accessories The Beumer Group, a leader in material handling and conveying, will deliver 16 belt conveyors to Vale for its iron ore transloading facility in the Andaman Sea. The order, which is valued at more than $100 million, was placed for Vale Malaysia Minerals, which is constructing an iron ore distribution center in Teluk Rubiah. At the facility, iron ore will arrive from Brazil and then be blended and shipped to customers throughout the Asia-pacific region. The Beumer troughed belt conveyors off the Malaysian coast, in the Strait of Malacca, will transport iron ore from very large ore carriers to smaller vessels in a specially designed port and storage facility. Construction work is already in full swing. The loading terminals are expected to go into operation in 2014. A second expansion phase will run until 2019. Rema Tip Top will display its line of products and services that improve conveyor op-erations. The company���s Remaslide LF, a low-friction, slider bed bar, supports conveyor belts at transfer points. The polyethylene coating has been improved not only to reduce friction, bt also to resist wear. The company will also display its Remagrip CK-X pulley lagging. Both the 20-mm CK-X HD and the 25mm CK-X HDX will be on disThe low friction Remaslide bar. play at the Rema stand. The Wirtgen surface miner loads coal into haul trucks. Innovations in Tire Protection Technology More than Surface Miners, Wirtgen Also Displays Crushing and Screening The Wirtgen Group���s Mineral Technologies division will display a well-matched range of products for mining and mineral processing: Wirtgen surface miners and Kleemann crushing and screening machines. Some shallow, soft relatively deposits can be mined effectively without conventional drilling, blasting and pre-crushing. One popular mining method for lignite and iron ore uses the Wirtgen surface miners. These units function much like cold milling machines, cutting and crushing the coal (or rock) with a special cutting roller. Conveyor systems load the material onto haul trucks or place it in windrows alongside the surface miner. Wirtgen offers three classes, the 2200 SM, 2500 SM and 4200 SM, which have cutting widths of 2.20 m to 4.20 m and cutting depths of 20 cm to 83 cm up to a uniaxial compressive strength of 120 MPa. Special machines can even cut hard granite up to 260 MPa. Moreover, Wirtgen is the only manufacturer that covers a perforFebruary 2013 Erlau will be celebrating its 70th anniversary as a tire protection specialist at bauma. Capturing75% of the market for the big tire chains, it knows a thing or two about tire protection. On the stand at bauma, it will have share two new ideas: the Easylock hasp for installing and removing tire chains and the Sideflex, which protects the tire���s sidewall from cuts. The Easylock is a true innovation that overcomes several problems common to the installation a removal of tire protection chains (TPC). It is a connecting ring that can be fitted and removed, without hammers or cutting torches. Easylock for changing large tire chains. The device consists of www.coalage.com 41

Articles in this issue

Links on this page

Archives of this issue

view archives of Coal Age - FEB 2013