A hydraulic particle separator is described. The particle separator comprises a main body having a top, a bottom, and a wall enclosing an interior cavity. At least one feed port is disposed on the top of the main body to introduce crude particle mixtures. A partition disposed within the cavity separates the cavity into a lower chamber and an upper chamber. The partition has at least one orifice for fluidic communication between the upper chamber and lower chamber. One or more grooves extend vertically along the interior surface of the wall. At least one tangential flow inlet port is disposed along the wall of the upper chamber above the partition.

What is presented is a material processing system for processing tailings discharged from an ore processing system. The tailings comprise coarse waste rock, the fine waste rock, coarse valuable product, and the fine valuable product. The material processing system comprises a classification element, a coarse flotation element, and a fines flotation element arranged to separate the coarse valuable product, the coarse waste rock, the fine valuable product, and the fine waste rock. The classification element separates the coarse waste rock and/or the coarse valuable product from the fine waste rock and/or the fine valuable product. The coarse flotation element separates the coarse waste rock from the coarse valuable product, the fine waste rock, and/or the fine valuable product. The fines flotation element separates the fine valuable product from the coarse waste rock, the fine waste rock, and/or the coarse valuable product.

What is presented is a material processing system for processing tailings discharged from an ore processing system. The tailings comprise coarse waste rock, the fine waste rock, coarse valuable product, and the fine valuable product. The material processing system comprises a classification element, a coarse flotation element, and a fines flotation element arranged to separate the coarse valuable product, the coarse waste rock, the fine valuable product, and the fine waste rock. The classification element separates the coarse waste rock and/or the coarse valuable product from the fine waste rock and/or the fine valuable product. The coarse flotation element separates the coarse waste rock from the coarse valuable product, the fine waste rock, and/or the fine valuable product. The fines flotation element separates the fine valuable product from the coarse waste rock, the fine waste rock, and/or the coarse valuable product.

There is provided a particle classification system comprising: a classifier including: a vat defining an interior cavity, a feeder conduit upstream of the interior cavity, an overflow conduit in fluid communication between a top of the interior cavity and outside the vat, an underflow conduit downstream of the interior cavity and a controllable underflow valve fluidly connected to a bottom of the interior cavity, the underflow valve controlled to be either in an open configuration in which the interior cavity is in fluid communication with the underflow conduit or in a closed configuration in which the interior cavity is sealed from the underflow conduit; a feed preparation circuit upstream of the feeder conduit; a rejection circuit downstream of the overflow conduit, and a beneficiation circuit downstream of the underflow conduit. There is also provided a method of classifying fluid-borne particles comprising obtaining a feed containing high-density particles.

There is provided a particle classification system comprising: a classifier including: a vat defining an interior cavity, a feeder conduit upstream of the interior cavity, an overflow conduit in fluid communication between a top of the interior cavity and outside the vat, an underflow conduit downstream of the interior cavity and a controllable underflow valve fluidly connected to a bottom of the interior cavity, the underflow valve controlled to be either in an open configuration in which the interior cavity is in fluid communication with the underflow conduit or in a closed configuration in which the interior cavity is sealed from the underflow conduit; a feed preparation circuit upstream of the feeder conduit; a rejection circuit downstream of the overflow conduit, and a beneficiation circuit downstream of the underflow conduit. There is also provided a method of classifying fluid-borne particles comprising obtaining a feed containing high-density particles.

An intelligent elutriation magnetic separator includes a material feeding trough, an overflow trough, a separation tank, excitation coils, a balance column, an outer cover, a water supply system, a lower cone, a concentrate discharging system and sensors. The excitation coils are sleeved outside the periphery of the separation tank, and the outer cover is sleeved outside the excitation coils. The balance column is mounted on the inner sides of the separation tank; the balance column and the separation tank are coaxially mounted; and the water supply system is located on the separation tank. The lower cone and the separation tank are mounted intercommunicated at the bottom. The concentrate discharging system is mounted on the bottom of the lower cone; and the sensor is mounted on the lower cone for measuring the slurry concentration in the separation tank. An automatic intelligent program is used to control the intelligent elutriation magnetic separator.

This invention relates to a classifier for separating particles by size and density and a method of classifying particles by size and density. The classifier, which is also used in the method, includes an underflow outlet for conveying a first product out of the classifier; a fluidising means for introducing a fluidisation fluid into the classifier; a settling chamber for forming a hindered-settling zone, the settling chamber being in fluid flow communication with the fluidising means and the underflow outlet; a reflux chamber for forming a free-settling zone, the reflux chamber being in fluid flow communication with the settling chamber and having a cross-sectional area larger than that of the settling chamber; a launder in fluid flow communication with the reflux chamber for conveying a second product to an overflow outlet of the classifier; and an inlet conduit which projects into the classifier for introducing a feedstock into the classifier.

This invention relates to a classifier for separating particles by size and density and a method of classifying particles by size and density. The classifier, which is also used in the method, includes an underflow outlet for conveying a first product out of the classifier; a fluidising means for introducing a fluidisation fluid into the classifier; a settling chamber for forming a hindered-settling zone, the settling chamber being in fluid flow communication with the fluidising means and the underflow outlet; a reflux chamber for forming a free-settling zone, the reflux chamber being in fluid flow communication with the settling chamber and having a cross-sectional area larger than that of the settling chamber; a launder in fluid flow communication with the reflux chamber for conveying a second product to an overflow outlet of the classifier; and an inlet conduit which projects into the classifier for introducing a feedstock into the classifier.

A classifier and a method of separating material using such a classifier are disclosed. The classifier comprises a mixing chamber having a mixing fluidization floor and a concentration chamber having a concentration fluidization floor. The concentration fluidization floor and at least a portion of the concentration chamber is located below the mixing fluidization floor. The method of separating material using such a classifier comprises delivering material to be separated into a mixing chamber of the classifier, fluidizing the material in the mixing chamber; transferring some of the material to a concentration chamber of the classifier in fluid communication with the mixing chamber, fluidizing the material in the concentration chamber, forming a concentrating fluidized bed in the concentration chamber, separating the material with at least the concentrating fluidized bed and drawing heavier portions of the separated material from the concentration chamber.