Deposits of sand and gravel, the unconsolidated granular materials resulting from the natural disintegration of rock or stone, are generally found in near-surface alluvial deposits and in subterranean and subaqueous beds.
Sand and gravel generally are mined in a moist or wet condition by open pit excavation or by dredging. Open pit excavation is carried out with power shovels, draglines, front end loaders, and bucket wheel excavators. In some situations, light charge blasting is done to loosen the deposit. Mining by dredging involves mounting the equipment on boats or barges and removing the sand and gravel from the bottom of the body of water by suction or bucket-type dredges.
Used Sand Mining Equipment
Sand mining operations include the mining, crushing, grinding and washing of granite, and ore handling and processsing plant. SBM technology and service covers the complete range, from feasibility studies, plant design and equipment manufacture to project implementation and installation of process plants.
Except provides complete new eqwuipment, we also supply complete series of used sand mining equipment for sale, including extraction equipment, quarry machine, crushing machine, screening plant, washing machine, washing plant, separation machine, processing plant etc. SBM also customize mining solution according to customers' requirements. Please contact us for more information.
Sand Processing Plant
After mined, the sand and gravel material is transported to fixed or vibrating scalping screens by gravity or belt conveyors. The scalping screens separate the oversize material from the smaller. Oversize materials are conveyed to a crusher for size reduction, to produce crushed aggregate or manufactured sands. Crushing generally is carried out in one or two stages by jaw crusher, impact crusher, cone crusher or VSI crushr. SBM is world leading supplier of sand processing plant and crushing machine. Please feel free to contact us for more information.