VDMA

INDA 2017

Best of Germany 2014 - Mining Equipment and Mining Technology

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VDMA 35 2017 • VDMA MINING SUPPLEMENT environments without GPS access such as underground mines. It had the ability to assess the surrounding area underground and provides digital images for 3-D documentation. In addition to system technolo- gy development and manufacturing, DMT also coordinates worldwide distribution. They will present the technology at the 2017 Mining Fo- rum in Berlin (June 1-2, 2017). More information on the 2017 Mining Forum is available online at www.the-miningforum.com. Vision for Process Automation Based in Aalen, Baden-Württemberg hema designs customer-spe- cific camera systems for a wide range of applications. Automated processes and equipment warning systems depend on reliable vi- sion systems, and with that in mind, hema electronic has designed the seelectorICAM HO1 camera system for the mining industry. A robust design, high dynamic range and superior quality video were integrated during the development. An ethernet interface allows the digital camera to be easily installed in digital networks. A unique feature of the seelec- torICAM HO1 is the high-dynamic range video imaging. A more than 120-dB dynamic range combined with a high-quality color image of 1.3 megapixel exceeds what is available in existing systems. The plant manager or equipment operator can now see and detect people and obstacles next to flood- lights even in dark areas. Reliable detection has taken on an added importance as more mining operations consider autonomous operations. With this type of camera installed, remotely operating machines and the use of un- manned aerial vehicles (UAVs) is within reach. Not only for proof of concept, but also for safety and security in deep mining operations. All the systems already in use could benefit from these camera options. The robust electronics and the IP67 housing ensure a safe op- eration. The reliable optics and cabling complete the system. The camera adapts easily to existing digital networks using standard- ized digital interfaces such as Ethernet or wireless connections. The new camera has been tested on construction machines. It was used in rear-view camera applications on excavators and wheel loaders. The results show the exquisite image quality. The system was then tested on rear-view mirror applications. Operators reported good results even at sunset. Now hema hopes to test the seelectorI- CAM HO1 in mining and material handling applications. These mod- ern cameras with HDR sensor technology could add another layer of safety and security to existing operations. Linear Booster Drives for Conveyors Last year, the Prosper-Haniel coal mine installed a TT Drive on its H2 belt conveyor without interrupting operations, achieving a com- prehensive solution. A subsequent installation of another TT Drive resulted in further cost reductions for the mining company. Owned by RAG Deutsche Steinkohle, Prosper-Haniel produces about 3 million metric tons (mt) of coal per year. The H2 conveyor transports raw coal 1,270 m with a lift of 186 vertical m. Its operat- ing speed amounts to 3.2 m/s with a capacity of 2,000 mt/h. With the installation of the first TT Drive, Voith made it possible for the Prosper-Haniel mine to carry on using a heavily damaged steel cord belt (ST5000) until the next scheduled downtime and prevented an unplanned shutdown and corresponding production loss. During the next downtime, Voith installed a second TT Drive in the H2 conveyor. This reduced more belt tension and Prosper-Haniel has since been able to operate the conveyor with a cost-saving fabric belt (PVG2000/1). Project managers Ralf Dohle and Wolfgang Kosiuk from RAG Deut- sche Steinkohle are completely satisfied with the booster drives and the project execution. "Voith's solution has provided us with a dual benefit," Dohle said. "Not only did we manage to avoid an unplanned shutdown because of the damaged belt, we are now able to use a textile belt instead of an expensive steel cord belt for the system." The Voith TurboBelt TT Linear Booster Drive is a high-perfor- mance secondary drive for belt conveyors. It extends the use of belts in existing systems and increases their available power. In new belt conveyor systems, it reduces the requirements on belt quality, lead- ing to considerable cost savings. Dynamic Weighing Systems When it comes to mobile weighing systems, Pfreundt continues to improve its product line for wheel loaders, and they have some great ideas for mining applications as well. The company is one of the leading international producers of integrated weighing systems with 40 agencies worldwide. The actual weighing system WK60 has been available for about two years now. "Improvements in technology and materials have allowed us to develop the WK60 and the user interface looks a lot like an iPad, except that it's 6-cm thick," said Bruno Reckmann, director of sales and market- ing for Pfreundt. The back of the device is equipped with a plug-and-play connection simplifying the installation. "A technician needs to calibrate the system, but it's relatively simple to assemble and install," Reckmann said. "The electrical connections on its predecessor, the WK50, were much more complicated with different plugs and cables. Now the cable ends attach to color-coded positions." The system calculates the load in the bucket based on hydraulic pressure and the bucket lift. "The WK60 operates well within the hydraulic limits of large wheel loaders used in open-pit mining operations as well as the large LHDs found underground. Because they only have 30 cm to 50 cm of lift, LHDs presented a problem at first. But now we have resolved those issues and the system works very well," Reckmann said. Pfreundt recently announced some improve- ments to its WK60 electronic weighing system, which will play an integral role in its "Speed Weigh Technology" for wheel loaders. This form of dynamic weighing allows a weight determination without disrupting the production process. Tech- nology improvements have extended the measure- ment range to the point where the system can get an exact weight indication with a minimal bucket height, which could prove useful underground. The WK60-XS will have an even smaller dis- play, 5 in. compared to the 7 in. "This is important for confined operator cabins such as those found in mining," Reckmann said. hema has designed a robust cam- era for mining operations. The display for the WK60 mobile weighing system looks a lot like today's tablets. The Voith TurboBelt TT Linear Booster Drive allowed RAG to replace a steel cord belt with a cost-saving fabric belt.

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