Aggregates Manager

November 2013

Aggregates Manager Digital Magazine

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Page 20 of 86

ATIONS e Best of Both Worlds ILLUSTRATED Modular Plants: Th onveyors, stationary ar design raditional rd freight rchase on 2 Pre-engineered vs. custom design-build 3 Quick setup Compared to a custom-designed, "stick built" plant, a modular plant is pre-engineered and entirely built in the factory. The customer chooses from existing designs, and then the factory builds the machines and skid structures in-house. The pieces ship as modules that often include the detailed components, such as chute work, cross members, walkways, handrails, motors, and drives. A crane lifts the plant units from the transport trailer, and sets them into place. The modules bolt together as the plant quickly erects onsite. The time required to build the plant is minimal. An entire spread can be erected and running in a matter of days, rather than weeks or months. Because the structures are built in the factory and designed to fit together, they provide assurance that quality control issues have already been addressed. 5 6 Ease of service With a traditional stationary plant, the design emphasis usually is placed on production; maintenance access may be an afterthought. The design work that goes into most modular plant units also includes consideration for maintenance and service. From the catwalks to the stairs and handrails, the modules are designed so that maintenance personnel can access and work on the critical components of the machine. OUR EXPERTS Hershel Geeo is principal of Geeo Systems Limited, a Dallas-area mining consultant for domestic and international projects. Prior to this position, Geeo was general manager for a Sawyer, Okla.-based quarry, now under ownership by Summit Materials. He has more than 40 years of experience in the aggregates and mining industries. Geeo also has extensively pursued studies in electrical and mechanical engineering. Planning is a must As easy as it may sound to choose, order, and set up a modular plant, lack of planning can derail the benefits of quick assembly. It is imperative that producers know what they want to achieve, how they want the plant to work, and what they expect the plant to produce for them. Proper site preparation is also critical. Make sure that pads are properly cured and ready for the modules before they arrive. Mark Crooks has more than 15 years experience in the crushing and screening industry, having worked in various roles both internationally and domestically for several companies. Crooks is currently the modular product line manager for Terex Minerals Processing Systems, which provides a complete range of crushing and screening process equipment to customers around the world. November 2013 OperationsIllustrated_AGRM1113.indd 19 10/17/13 1:57 PM

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