Gold ore dressing processing equipment manufacturer gold heap leaching

Ore preparation Including crushing, screening or granulation and pretreatment. In order to improve the leachability of the ore and the permeability of the leaching pile, avoid uneven flow, blockage, channeling, etc., increase the metal recovery rate, reduce the consumption of the solution and improve the leaching effect, it is necessary to use a jaw crusher to remove the ore. It is crushed to the lumpiness suitable for leaching and achieves a reasonable lumpiness composition.

Dip pad construction In order to collect the rich liquid and prevent the solution from leaking, the storage yard needs to be trimmed and bedding (or bottoming) before the pile is built. The materials used for the construction of impregnation pads include clay, sand, gravel, tailings , asphalt, reinforced concrete, plastic film or rubber plastic board. Depending on the material, the thickness of the cushion is generally 300-600mm. The vertical and horizontal drainage channels are laid with lump ore on the cushion, and finally a layer of large ore is laid on the entire bottom to protect the bottom cushion.

Liquid cloth and liquid collection The liquid distribution is to spray the solution evenly on the top surface of the mine pile. The liquid distribution (spray) system is composed of a liquid distribution tank, a pump, a liquid infusion pipe, and a spray pipe and a sprayer laid on the mine pile. Sprinkler pipes are usually plastic pipes, and the sprinklers are often swinging. The requirement for spraying is to spray the leaching solution evenly on the ore pile, and to achieve the required spray intensity.

Rich liquid processing The process technology for recovering metals from rich liquid depends on the mineral: extraction of uranium, commonly used extraction and ion exchange precipitation method and solvent extraction-electrowinning; extraction of gold, commonly used activated carbon (or ion exchange resin) adsorption-analysis- -Electrowinning method and displacement precipitation method.