Spreaders are mobile continuous operating dumping machines receiving the material from the shiftable dump bench conveyor via a tripper car or from mobile transfer conveyors. The main parts of a spreader are the receiving boom with or without support crawler track, the superstructure, the sub-structure with crawler tracks and the discharge boom. Determined by operational requirements the discharge boom can be fixed, liftable or slewable. The spreader is able to dump a low cast, which will be the travel plateau for one of the following dumping blocks, and a high cast on the other side of the shiftable dump bench conveyor. The main design criterion is the length of the discharge boom, determined by the required dumping height and block width as well as by the material properties meeting safety requirements (stability of the dump itself, safety of the equipment on dump). TAKRAF offers spreaders of compact design or large spreaders with long discharge booms for high and safe dumps. The capacity ranges up to 20, 000 mh. The length of the discharge boom can reach 195 m as built for a cross pit spreader for Russia. Cross pit spreaders are part of a highly efficient direct dumping system. They receive the material directly from a bucket wheelchain excavator. The discharge boom of those spreaders reaches over the open pit and transfers the material directly onto the dump site.
Ashwini Kumar Sonje (Tenova Metals India Private Limited)
Andheri East, Mumbai, Maharashtra - 400069, India
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