Pit & Quarry, October 2015
SPECIAL SECTION CONVEYING MATERIAL HANDLING Dakota Aggregates replaced bolts with fixed pin connections seen up close at right so it could eliminate the need for wrenches during most installations 500 to up to 1000 ft Its easy to reconfigure any one of our modular overland systems to cost effectively meet our changing requirements each year Hannover says As an example during this season we easily pulled 250 ft out of one system Also while we generally operate on level ground next season we will be moving a section to accommodate material transfer on an area with a 15 percent incline Hannover adds He also says installation is a breeze Once we got the pattern down three crew members marched right down the conveyor corridor and were able to assemble 1000 ft of overland conveyor sections in a 10 hour day Hannover says The crew used a forklift and a skid steer loader with no need for cranes or other heavy equipment Engineering perspective Superior Industries started construction of the Zipline with tool free installation requirements for the intermediate areas between the head and tail sections Travis Thooft a member of the Superior Industries engineering team says the requirement meant creating a new type of fastening system that is structurally sound and reliable yet quick and easy to use in the field When you consider the typical way to put things together the industry While we are generally pulling conveyors out and shortening the distance of conveying we can easily add on sections in other areas of the operation Stacey Hannover Dakota Aggregates standard is basically weld or bolt Thooft says We took it a step further by eliminating bolts and replacing them where possible with a fixed pin connection We wanted to eliminate the need to bring out a set of wrenches for most installations Thooft estimates that the new design can cut installation time by up to 75 percent Basically you hook in one end and then the other with the setup for a 10 ft section taking just about five minutes he says Thooft explains that the specification process starts by defining the overall length of the overland system and the required horsepower The system includes a pre engineered head assembly and tail section and is designed with offthe shelf components for easy sourcing of replacement idlers and pulleys Producers can customize with options such as self aligning troughing idlers or special return trainers idler guards and belt cleaners or a longer or different type of gravity takeup for example he adds When compared to a spec by spec highly engineered system Thooft says the Zipline conveyor system is a lower cost overland alternative While its lighter in weight it offers the structural strength of the conven 40 PIT QUARRY October 2015 www pitandquarry com
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