Rock Products

JUL 2017

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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18 • ROCKproducts • July 2017 ALLEGHENY MINERALS O verland belt conveyors have been widely used as a cost-effective method to transport bulk materials. Allegheny Mineral Corp. – a leading supplier of aggregates to the Pennsyl- vania market – certainly understands these economics, and for the past 20 years, has been using a 3,100-ft. long, 42-in. conveyor to transport crushed limestone from an existing primary crusher to its processing plant and stor- age yard at its Slippery Rock Quarry in northwestern Pennsylvania. Recently, work started on the devel- opment of a new quarry a mile south of the current screening facilities. This entailed planning and developing a new mile-long, 42-in. overland conveyor designed and built to support this addi- tional operation. "The Slippery Rock project had sev- eral unique and potentially difficult scenarios; including crossing a heavily traveled township road, multiple wet- lands and a creek that is heavily used by fisherman, canoe/kayak enthusiasts and outdoorsmen," said the company's Jonathan Kolbe. "After meeting with an engineering team from Industrial Resources, we decided to add them to our shortlist of engineering firms to provide design for the proposed mile-long overland conveyor belt project," Kolb continued. "After further reviewing Industrial Resource's portfolio and engineering experience they were selected to pro- vide general arrangement drawings as well as provide the turn-key fabrication, installation and construction for the overland conveyor." Industrial Resources, located in Fairmont, W.Va., is a design-build con- tractor that specializes in material handling equipment, and has exten- sive experience both designing and constructing these types of conveyors for the mining industry. Allegheny Mineral engaged Indus- trial Resources in the spring of 2015 to develop a preliminary engineering design report and to assist with the necessary planning to further define the proposed conveyor project. Basic Engineering Although the initial work was limited to the basic engineering to establish the alignment, size the mechanical components, and set schedules, con- structability and cost estimates, its underpinning included all the past experience Industrial Resources acquired over the years designing and building similar installations. Best-value solutions for each design and construction element were eval- uated. This assured reliable results to support the additional work neces- sary for the project to move forward. It included the evaluation of two separate horizontal alignments, and provided the basis for Allegheny Min- eral to select the route that was chosen and secure the necessary geotechnical studies and permits. Going That Extra Mile Allegheny Mineral's Slippery Rock Quarry Installs a Mile-Long Overland Conveyor at its New Operation. By Mark S. Kuhar Conveyor drive.

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