Ore Dressing Equipment

Small Ball Mill Gold Mercury Amalgamator Barrel

Gold amalgam barrel is a traditional gold refining machine. It is also called small mercury ball mill which is featured by mixing the mercury and gold concentrate from shaking table, sluice box or gold centrifugal machine in order to make recovery of gold. Our automatic amalgamator adapts a new design using stepper motor to drive the machine in replacement of manual operation. This machine is used for mixing the mercury and gold with black sand to get the gold amalgam. Then distill the gold amalgam in the mercury retort and get the pure gold. Although this method is low-cost and highly efficient, it still has problems of mercury poisoning. Therefore, the amalgamation gold extraction method is usually used as an auxiliary method in conjunction with other mineral processing methods to increase the recovery rate of gold.

product details

Working principle

This machine is composed of cylinder body, frame, hand gear reducer, frame, electrical control and other main components. The basic principle of the mercury amalgamation gold extraction method is to utilize the selective wetting effect of mercury on gold particles. During the mercury amalgamation process, the surface of gold particles get wet by mercury, and then the mercury diffuses into the interior of the gold particles to form amalgams of different compositions, such as AuHg2, AuAg and Au3Hg. Finally it will form a solid solution of gold in mercury. This process is to achieve effective separation of gold particles from other minerals.

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Specification

Type		Inner Size			Ore Loading (kg)	Speed (r/min)	Power (kw)	Ball Weight (kg)	Ball Dia (mm)
Type		Dia	Length (mm)	Volume (m3)
Light Type		420	600	about 0.3	50-90	20-22	0.75-1.5	10-20	38-50
Heavy Type	0-31	600	800	0.233	100-150	22-38	0.3-2.1	150-300	38-50
	0-3b	750	900	0.395	200-300	21-36	1.7-3.75	300-600	38-50
	0-3b	800	1200	0.60	300-450	20-33	3-6	500-1000	38-50

Application

This machine can be used for gold ore processing in gold concentrate plant in mining quarry. The surface of the gold particles is often contaminated to some extent, though majority of the gold in the re-elected gold concentrate is in a free state. When re-selecting gold concentrate with a mercury-mixing cylinder, steel balls often add to the cylinder to remove the surface film of the gold particles by grinding. Then the gold particles are dissociated from the continuum to treat the weight of the free gold particles with clean surface. In the case of sand concentrates, it generally use light-weight amalgamation cylinders with small amount of hitting balls is small. When using heavy sand with high content of continuous granules and serious surface contamination of gold particles to concentrate, it generally use heavy-duty amalgamation cylinders.

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Delivery

Ascend always bears customers’ needs in mind, setting a series of regulations to guarantee the delivery of goods in a convincing way. We also provide customized delivery arrangement for customers.