Gold Crushing, Screening And Washing Plant For Gold Processing

In the gold processing plant, gold ores go through crushing

, screening, washing process for gold recovery.

Gold crushing and screening plant:

According to research, most gold ore processing plants adopt jaw crushers for primary crushing, and cone crushers for secondary crushing. Medium and small gold beneficiation plants adopt usually two phases one closed-circuit process, and large gold beneficiation plants use three phases one closed-circuit.

The Gold ore Jaw crusher operates by the mechanism of two large plates of steel moving towards each other on a cyclic basis to break gold ore from a larger size to a smaller size. The plates are positioned so that the gap at the top is larger than the gap at the bottom.

Material is loaded into the crusher bin (1) by trucks or loaders. Prior to entering the Jaw crusher the gold mine moves across a grizzly (2). The grizzly has a series of slots in it allowing the smaller pieces of rock to fall through (3). The remaining oversized material passes through the Jaw crusher (4) and is sized down to less than 200mm. An electromagnet (5) removes tramp steel from the old workings. The material is transported (6) to the main overland conveyor via a transfer station.

washing machine for Gold ore

The tunnel and sluices having been completed, water is turned into the pipes and washing commences. The sluices are run half a day in order to pack them. The water is then shut off and a charge of quicksilver is put into the upper 200 or 300 feet of sluices, a small quantity being distributed along the entire line except the last 400 feet. In a 6-foot sluice the first charge will be about 3 flasks. The undercurrents are charged at the same time and a little quicksilver put into the tail sluice. Quicksilver is added daily during the run, in gradually lessening quantities, the object being to keep the mercury uncovered and clean at the top of the riffles ; and therefore the charge is regulated by the amount exposed to view. At the North Bloomfield Mine, where the main sluice is cleaned up nearly every 12 days, the amount of quicksilver used in a run varies from 14 to 18 flasks. A 24-foot undercurrent will require a charge of from 80 to 88 pounds of quicksilver.

In charging the riffles all splashing of the quicksilver should be avoided. When it is sprinkled into the sluice (a practice to be condemned) it divides itself into minute particles, the bulk of which is easily carried off by the swift stream, while the lighter portions will float even in the clear water. The buoyancy of these small particles is very considerable.

Top water from mining sluices often yields minute globules of quicksilver, and float quicksilver containing gold particles (microscopic) has been taken from the surface of the water twenty miles from where the amalgam.

SBM provides you with high quality gold ore jaw crushers for your gold processing plant according to your desired processing capacity. Our latest JC series jaw crushers of European version can process gold ore material sizing from 400 x 600mm to 180 x 1300mm. its production capacity ranges from 12-70 t/h. SBM JC series jaw crusher specially designed for gold ore crushing with optimized structure has won worldwide reputation for its high efficiency, reliable operation and high crushing ratio.

SBM is professional in manufacturing gold ore cone crushers for secondary crushing. We have a range of different cone crushers to be your choice, such as PY series spring cone crusher, CS series spring cone crusher, HCS cone and crusher with high-efficiency. Our cone crushers have been exported to more than 120 countries and are widely used in large, medium and small scale gold ore beneficiation plants.

by: yoncy

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