The impeller has a back-tilted double-sided blade, which can realize double circulation of slurry in the tank; The gap between the impeller and the cover plate is large, and the air intake is large; The impeller has a low peripheral speed and a long life of the consumable parts; Forward tilting trough, small dead angle, fast foam movement; Large inspiratory capacity and low energy consumption; The wearing parts have a long service life; Conducive to the flotation of coarse minerals; Mechanical agitation, self-priming, self-priming slurry
The working principle of the SF flotation machine, when the impeller rotates, the slurry in the upper and lower impeller chambers generates centrifugal force under the action of the upper and lower blades and is twisted to the periphery, so that a negative pressure zone is formed in the upper and lower impeller chambers. At the same time, the slurry in the upper part of the cover plate is sucked into the upper impeller cavity through the circulation hole on the cover plate to form a slurry circulation. When the lower blade pulls out the slurry around, the lower slurry is replenished to the center, thus forming a lower circulation of the slurry. The air is sucked into the upper impeller chamber through the suction pipe and the central cylinder, and is mixed with the sucked slurry to form a large number of fine bubbles, which are uniformly dispersed in the groove through the cover plate to form mineralized bubbles. The mineralized bubbles float up to the foam layer and are scraped off by the scraper to form a foam product.
|SF type flotation machine technical performance|
|Diameter of impeller|
|Scraper motor power(kW)||Tank weight|
3.Deposit type: A. Marine volcanic rock ore: Pyrite-type copper ore, mainly composed of brass pyrite, with a grade of about 1%. It is a sulfide ore and is an easy-selected deposit. B. Melting-off copper-nickel ore ultrabasic rock: mainly chalcopyrite and nickel pyrite, with a grade below 1%. C. Layered metamorphic rock ore: mainly brass and copper, grade greater than 1%, belonging to sulfide ore. D. skarn type ore: mainly copper, followed by copper, brass , its grade is greater than 1%, is a sulfide ore, easy to choose; E, porphyry ore: mainly brass, followed by spot copper, copper, grade less than 1%. F. other types of deposit: iron , sulphur, lead and zinc, gold and silver associated with symbiotic ores.
General industrial indicators
Cutoff grade: ≧0.2%-0.3%
Industrial grade: ≧0.4%-0.7%
Concentrate grade: first-class ore≧32%; second-class ore≧25%; third-class ore≧20%; fourth-class ore≧16%
Beneficiation process legend