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Krupp coal stacker featuring tripper conveyor and non-slewing, luffing boom at RTCA Kestrel Mine Stacker at Garzweiler surface mine. A stacker is a large machine used in bulk material handling. Its function is to pile bulk material such as limestone, ores, coal and cereals onto a stockpile. A reclaimer can be used to recover the material.
A reclaimer is used principally in reclaiming processes. These processes can have low, medium, and high material flow rates. Reclaimers are made up of a bucket-wheel, a counterweight boom, and a rocker; they also use a conveyor system to move any material reclaimed from the boom to its specific pile.
The stacker's 36-foot (11 m) wide base narrows to a 10-foot (3.0 m) tip giving it an elongated pyramid shape. It moved logs with a wire and metal conveyor system, and expelled them through a chute. Similar to how a bridge is repaired, a catwalk along one side is provided for maintenance workers to climb up and down the equipment. [2]
The spreader's design can vary, ranging from conventional single-boom spreaders to more modified two-conveyor compact spreaders. The main parts of a spreader usually come in four signature parts. The first is the signature receiving boom with or without a support crawler track. The second is the main body superstructure itself.
Bucket wheel technology is used extensively in bulk materials handling. Bucket wheel reclaimers are used to pick up material that has been positioned by a stacker for transport to a processing plant. Stacker/reclaimers, which combine tasks to reduce the number of required machines, also use bucket wheels to carry out their tasks.
Cart from 16th century, found in Transylvania A dumper minecart used in the Basque Country, currently at the Minery Museum.. A minecart, mine cart, or mine car (or more rarely mine trolley or mine hutch) is a type of rolling stock found on a mine railway, used for transporting ore and materials procured in the process of traditional mining.