This paper mainly provides a complete set of nickel ore beneficiation process, nickel ore beneficiation process, nickel ore beneficiation equipment to do a detailed introduction. Nickel ore dressing production line is described as follows.
Process flow of nickel ore dressing production line
The general process flow of nickel ore dressing production line is as follows: crushing system adopts two-stage closed-circuit crushing, grinding system adopts one-stage closed-circuit grinding. Flotation process is: two mixed flotation, copper and nickel concentrate for copper and nickel separation, ore regrinding and re-separation. Concentrate pulp and tailings pulp are concentrated and filtered respectively to obtain final concentrate tailings.
Nickel ore crushing classification in nickel ore dressing production line: The raw ore is transported to the raw ore warehouse for storage by the car, and then sent to the jaw crusher for a section of crushing by the electric vibration feeder, the broken product is transported to the self-defining center vibrating screen by the belt conveyor, for screening, the screen product is transported back to the cone crusher by the belt for the second section crushing, the cone broken product with the jaw broken product by the same belt conveyor to the vibrating screen, The product of the vibrating screen is transported by belt conveyor to the circular storage bin for storage.
Grinding and separation stage of nickel ore beneficiation production line: the ore in the round ore bin is fed into the ball mill by the electric vibration feeder for grinding, the ground minerals are sent to the hydraulic cyclone for grading, the bottom flow returns to the ball mill for grinding, the overflow is stirred by the pipeline conveying mixing tank, and the pulp enters the flotation machine after mixing.
After the pulp is roughed once, the roughed tailing is roughed twice, and the roughed concentrate is roughed twice. The resulting concentrate and the roughed concentrate are roughed once, and the concentrate is roughed twice to get the final copper concentrate pulp. The tailings of the secondary separation return to the primary separation for further separation. The tailings of secondary roughing are piped to the cyclone for classification, and the bottom flow of classification enters the ball mill for re-grinding and returns to the cyclone. The tailings of classification overflow and primary separation of copper and nickel are carried out for middle ore re-separation, and the final nickel concentrate pulp and total tailings pulp are obtained.
Processing of concentrate and tailings in nickel ore dressing production line: concentrate pulp is transported by pipeline to deep cone multi-cone high-efficiency thickener for enrichment, overflow water is returned to production and reuse, enrichment bottom flow enters plate filter press for filtration, filter cake is transported by belt conveyor to concentrate bin for storage. The tailings pulp is transported to the tailings pond for storage after the tailings are drained.
Molybdenum ore dressing equipment of nickel ore dressing production line and the use of equipment
Jaw crusher, cone crusher: the ore will be crushed, so that the useful minerals and gangue minerals reach monomer dissociation.
Self-setting center vibrating screen: the mixed material is divided into different levels according to the particle size, the separation of qualified particle size products, avoid over crushing of ore, improve the productivity of crusher.
Ball mill: grinding ore to achieve finer particle size.
Hydrocyclone: timely separation of qualified products, avoid over grinding, but also can separate unqualified coarse sand, return to grinding; There is also the effect of enrichment
Flotation machine: to aerate and stir the pulp, so that the surface has been subjected to the action of collector particles to bubble attachment, scraping out with a scraper, to obtain concentrate.
Thickener: The process of settling and concentrating the pulp so that the thinner pulp can be separated from the clarifying liquid and the pulp.
Filter: Remove most of the capillary moisture from the material.
In addition, there are some auxiliary equipment, such as electric vibration mining machine, belt conveyor, mixing tank, ore bin, sand pump, pump pool, motor and so on.
Nickel ore beneficiation production line has been successfully applied in the domestic nickel ore beneficiation, nickel ore beneficiation production line and excellent innovative nickel ore beneficiation process and nickel ore beneficiation equipment, is the best nickel ore beneficiation solution in China.
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