A coarse coal slime classifying system and method are disclosed. The system includes: a coal slime bucket, an arc-shaped sieve, a hydraulic classifying cyclone, a coal slime centrifuge, and a coal slime chute. The coal slime bucket is connected to a coal slime water incoming pipe. The hydraulic classifying cyclone is connected to the arc-shaped sieve and the coal slime bucket. The arc-shaped sieve is connected to the coal slime bucket and the coal slime centrifuge. The coal slime centrifuge is connected to the coal slime chute and the coal slime bucket. The coal slime bucket, arc-shaped sieve, hydraulic classifying cyclone, coal slime centrifuge, and coal slime chute are arranged to classify coarse coal slime, which improves the product quality and the yield. The system is simple in overall structure, convenient to maintain, and low in cost.

A coarse coal slime classifying system and method are disclosed. The system includes: a coal slime bucket, an arc-shaped sieve, a hydraulic classifying cyclone, a coal slime centrifuge, and a coal slime chute. The coal slime bucket is connected to a coal slime water incoming pipe. The hydraulic classifying cyclone is connected to the arc-shaped sieve and the coal slime bucket. The arc-shaped sieve is connected to the coal slime bucket and the coal slime centrifuge. The coal slime centrifuge is connected to the coal slime chute and the coal slime bucket. The coal slime bucket, arc-shaped sieve, hydraulic classifying cyclone, coal slime centrifuge, and coal slime chute are arranged to classify coarse coal slime, which improves the product quality and the yield. The system is simple in overall structure, convenient to maintain, and low in cost.

A method of separating grains of valuable minerals, precious metals, rare-earth metals, precious and semi-precious stones from natural ores in the aquatic environment by means of the phenomenon of adhesion, consecutively covering stages such as: initial separation consisting in sieving fractions up to 5000 μm from alluvial (rubble) ore or crushing primary (rock) ore to a fraction causing the separation of valuable minerals from gangue and where appropriate separating ferromagnetics from ores by means of a known method; forming the suspension by mixing the initially separated fraction of ore with liquid; adsorption of valuable minerals from the suspension on the adhesive coating and also recovering water from the process; and desorption of particles of valuable minerals from the adhesive coating; wherein lanolin or its mixtures with additives are used to form the adhesive coating in the separator, whereby, the content of lanolin in the mixture is not less than 80%.

A method of separating grains of valuable minerals, precious metals, rare-earth metals, precious and semi-precious stones from natural ores in the aquatic environment by means of the phenomenon of adhesion, consecutively covering stages such as: initial separation consisting in sieving fractions up to 5000 μm from alluvial (rubble) ore or crushing primary (rock) ore to a fraction causing the separation of valuable minerals from gangue and where appropriate separating ferromagnetics from ores by means of a known method; forming the suspension by mixing the initially separated fraction of ore with liquid; adsorption of valuable minerals from the suspension on the adhesive coating and also recovering water from the process; and desorption of particles of valuable minerals from the adhesive coating; wherein lanolin or its mixtures with additives are used to form the adhesive coating in the separator, whereby, the content of lanolin in the mixture is not less than 80%.

Classifying tanks, related systems and methods of operating the same are described. Some classifying tank embodiments facilitate the use of a control system and methods to perform one or more of the following tracking the product discharged, performing optimization routines, and determining new settings for a plurality of stations of the classifying tank.

A method of separating grains of valuable minerals, precious metals, rare-earth metals, precious and semi-precious stones from natural ores in the aquatic environment by means of the phenomenon of adhesion, consecutively covering stages such as: initial separation consisting in sieving fractions up to 5000 μm from alluvial (rubble) ore or crushing primary (rock) ore to a fraction causing the separation of valuable minerals from gangue and where appropriate separating ferromagnetics from ores by means of a known method; forming the suspension by mixing the initially separated fraction of ore with liquid; adsorption of valuable minerals from the suspension on the adhesive coating and also recovering water from the process; and desorption of particles of valuable minerals from the adhesive coating; wherein lanolin or its mixtures with additives are used to form the adhesive coating in the separator, whereby, the content of lanolin in the mixture is not less than 80%.

A method of separating grains of valuable minerals, precious metals, rare-earth metals, precious and semi-precious stones from natural ores in the aquatic environment by means of the phenomenon of adhesion, consecutively covering stages such as: initial separation consisting in sieving fractions up to 5000 μm from alluvial (rubble) ore or crushing primary (rock) ore to a fraction causing the separation of valuable minerals from gangue and where appropriate separating ferromagnetics from ores by means of a known method; forming the suspension by mixing the initially separated fraction of ore with liquid; adsorption of valuable minerals from the suspension on the adhesive coating and also recovering water from the process; and desorption of particles of valuable minerals from the adhesive coating; wherein lanolin or its mixtures with additives are used to form the adhesive coating in the separator, whereby, the content of lanolin in the mixture is not less than 80%.

The disclosure relates to a method for sorting a collection of bodies including cemented carbide bodies and non-cemented carbide bodies. A melt having one or more of bismuth, tin and lead and having a density in the range of 7.0-12.0 g/cm.sup.3 is provided. The collection is subjected to a sorting process based on density difference by providing the collection in the melt and allowing the bodies to be sorted into a first group at a top surface of the melt and a second group at a bottom of the melt. The first group includes non-cemented carbide bodies having a density lower than the density of the melt and the second group includes cemented carbide bodies having a density higher than the density of the melt. The present disclosure also relates to a method for recycling of cemented carbides comprising the sorting method and recycling of the second group.

A mineral recovery system for use in a mining operation is described. The mineral recovery system includes a mining operations model generated based on inputs of sensed conditions, wherein the mining operations model incorporates a thickener sub-model and a material sub-model. The mineral recovery system includes a thickener controller to issue commands based on the mining operations model. The mineral recovery system includes a thickener having a process water. The thickener also includes an underflow output provided with an underflow controller to adjust outflow of thickened slurry from the thickener based on issued commands. The thickener further includes an overflow output to dispense clarified water from the thickener.

Disclosed is a multi-stage sedimentation rake-free thickening device. The device includes a central tank. A diversion sedimentation zone is arranged on the outside of the center tank. The diversion sedimentation zone includes an annular diversion sedimentation screen and a concentrated magnetic shower. The annular diversion sedimentation screen includes an annular groove spirally arranged around a central groove body. The annular groove is sequentially arranged with second spoiler baffles along the length direction. The lower bottom plate of the annular groove is also provided with second underflow discharge port. Multiple second inclined plate diversion discharge pipe is arranged under the corresponding second underflow discharge ports. The outlets of all the second inclined plate guide discharge pipes are collected to the second underflow discharge pipe, and the settled water is discharged from the second overflow discharge pipe arranged at the end of the annular groove.