Engineering & Mining Journal

JUN 2019

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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CRUSHERS 76 E&MJ • JUNE 2019 www.e-mj.com Recent headlining innovations and developments from the crush- ing solutions space are about focusing on the basics and solving age-old challenges. Crushing solutions marketed today almost universally feature the general Industry 4.0 capabilities that en- able miners to draw up a slick digital plant or mine and to monitor machine health in near-real time. They almost universally claim to offer the highest throughput in a reduced footprint. Where suppliers are really competing is on putting more horsepower into crushing ore, increasing output, improving overall perfor- mance and uptime, offering more dynamic customized services, and delivering real cost savings. The latest news from some of the bigger suppliers in the space reveals that the new horizon in crushing solution research and development, and in business strategy, remains the old one and centers on getting more done with less — less people, less kilowatts and less dough. Increasing Output Columbia Steel reported field results demonstrate its newly pat- ented cone mantle design improves crusher output. "A second- ary benefit could be an increase in net-sized product, depending on the nature of the material being reduced," Steve Dolezal, product engineering manager, Columbia Steel, said. Results from trials where the mantles were installed on crush- ers in the tertiary position in plants at sites in Canada and the American Southwest "are promising," the company reported. "We've found that filling a crushing chamber via typical grav- ity feed may not provide optimum, or maximum, material flow," Dolezal said. "Our high-output mantle design works by consis- tently drawing material into the chamber, producing a higher volume of crushed product." The design has three feed arms cast on the crushing surface on the top third of the mantle, Dolezal said. "With the crusher choke fed, the feed arms use the action of the crusher to help cut into and meter the feed material into the crushing chamber and though the sizing zone." The design for each mantle is based on the mantle pattern of the machine for which it is being built. "If Columbia has the base mantle pattern, the added expense of pattern work to add the helical feed arms is minimal," he said. Field results suggest deployment of the mantle adds to nei- ther energy nor consumables-related costs. "The amp-draw on the electric motor running the machines has not seen a signifi- cant increase using the high-output mantles," Dolezal said. Deployment requires only routine installation procedures, he said. "It would be best if the customer had a belt scale in place or installed immediately after the machine to qualify the differ- ence in throughput between the high output and base mantle." Meeting Demand for Quality CMS Cepcor closed on purchasing a 6,000-m 2 warehouse adja- cent to its manufacturing facility and near its headquarters in Coalville, North West Leicestershire, England. The development resulted from a period of sustained growth, the company reported. "The business has been looking for fur- ther premises locally for a number of years as sales growth and increased stocking was creating operating pressures," Matthew Weare, managing director, CMS Cepcor, said. "We had been in con- sultation with a developer who was exploring options for new-build sites in the local area, but in October last year we learned of the possible relocation of a company on a neighboring site and swiftly negotiated the purchase without it going on the open market." The 6,000-ft 2 warehouse will enable CMS Cepcor to relo- cate and centralize its precision-machined mining components. "More importantly, this will enable the business to further ex- pand our CNC manufacturing facilities, assembly and crusher service operations," Weare said. The added space will allow the company to increase stocks of crusher spare parts and expand the product ranges offered. "Cus- tomers will benefit from an increased offering of parts available from stock but also increased capacity of our manufacturing facil- ities, enabling us to react to urgent requirements," Weare said. The development will mandate relocating large quantities of sizeable stock and modifying longtime procedures, Weare said. "We successfully completed a similar task only 3 to 4 years ago when our headquarters and warehouse facility was built." The Global Parts Centre will create recruitment opportunities in all areas of the business, Weare said. "We believe recruitment of skilled staff coupled with the further development of our ap- prenticeship training will address recruitment needs, most im- Crushing Innovations Meet Basic Needs As futuristic as the current offerings are, the latest innovations aim for perennial targets By Jesse Morton, Technical Writer Above, Product Engineering Manager Steve Dolezal poses with a patented mantel prototype designed to up production. (Photo: Columbia Steel)

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