Combining the characteristics of black tungsten ore and white tungsten ore beneficiation, the entire process equipment, selection, process, parameters, and complete configuration, we provide you with a complete and detailed list of tungsten ore beneficiation equipment (a general on-site solution for tungsten mines in Jiangxi).
1, Core principles of tungsten ore beneficiation
Black tungsten ore (tungsten manganese iron ore): mainly based on gravity separation, with priority given to stage grinding+multi-stage gravity separation, reducing over crushing, high recovery rate, no chemicals, and low cost.
Scheelite (calcium tungsten ore): flotation is the main method, coarse particles can be pre enriched by reselection, fine particles can be fully flotation, and chemical selection is required to remove calcium gangue.
General process: crushing and screening → grinding and grading → pre selection/reselection → flotation (scheelite) → magnetic separation for impurity removal → concentration and dehydration.
2, Complete set of tungsten selection equipment for the entire process (detailed explanation by stages)
(1) Crushing and screening system (raw ore pretreatment)
Function: Crushing, grading, desliming of large ore blocks, disposal of waste rocks, and reduction of grinding volume.
Jaw crusher (coarse crushing)
Processing large pieces of raw ore, feeding ≤ 500mm, discharging 80-150mm, hard rock wear-resistant, tungsten ore comes standard with coarse crushing equipment.
JAW CRUSHER
Cone crusher (medium fine crushing)
Second/third stage crushing, discharging 10-30mm, high crushing ratio, low energy consumption, suitable for high hardness tungsten ore.
Linear vibrating screen/circular vibrating screen
Cone Crusher
Graded screening, closed-circuit crushing, desliming, controlling the particle size for grinding, and reducing over grinding.
Feeder, elevator, belt conveyor: supporting equipment for material conveying.
2) Pre selection of waste disposal equipment (key energy-saving for tungsten ore)
Coarse grained block ore (10-100mm) is prioritized for pre selection, with over 70% of waste rock removed in advance, significantly reducing grinding costs.
X-ray intelligent sorting machine (photoelectric beneficiation machine): AI recognition, automatic sorting of block ore, preferred for modern large-scale tungsten ore.
Hand selection platform: Simple rough selection for small mines.
Heavy medium sorting machine: High waste rock rate mining batch dumping.
3) Grinding and grading system (mineral monomer dissociation)
Tungsten ore is prone to over crushing (especially black tungsten), so priority should be given to rod mills and stage grinding, combined with closed-loop classification.
Rod grinder (preferred for black tungsten)
Wire contact grinding, selective grinding, greatly reduces tungsten ore over crushing and fine mud loss, and prioritizes the recovery of coarse tungsten particles.
Ball mill (white tungsten/fine grinding/two-stage grinding)
Ball Mill
Wet grid type/overflow type, closed-circuit grinding, grinding to a fineness of -200 mesh to meet flotation requirements.
Spiral classifier/hydrocyclone
Forming a closed circuit with the grinder, grading sand return, controlling grinding fineness, and desliming; Fine grinding of white tungsten is often carried out using hydraulic cyclones.
4) Re selection equipment (black tungsten ore core, white tungsten coarse particle pre enrichment)
Utilizing the difference between tungsten density (7.1~7.5g/cm ³) and gangue density, it is non-toxic, environmentally friendly, and cost-effective.
1. Coarse particle reselection (2-20mm)
Sawtooth wave jigs
Coarse selection and tail throwing, with a large processing capacity, can recover coarse black tungsten particles and improve the selection grade. It is the first re-election equipment for black tungsten ore.
2. Medium sized coarse selection (0.03~2mm)
spiral chute
No power, extremely low operating costs, large-scale coarse selection and enrichment, rapid removal of large amounts of gangue, suitable for sand tungsten and medium grain size of raw ore.
3. Fine particle/slurry recovery (0.037-0.0037mm)
Centrifugal beneficiation machine (STLB type)
Specially recycling fine-grained tungsten ore mud that is difficult to select on the shaker can increase the recovery rate by an additional 10% to 15%, which is essential for tungsten tailings recovery.
4. Selective purification (universal for all particle sizes, main equipment for tungsten concentrate)
6S shaking table (tungsten ore standard selection)
The highest sorting accuracy is achieved by selecting the core of medium and fine-grained tungsten, with adjustable stroke, frequency, and water volume, ultimately producing qualified high-grade tungsten concentrate (WO ∝ ≥ 65%); Process: One coarse, two fine, and three scans.
5) Flotation equipment (scheelite core, scheelite coexisting ore)
Fine grained scheelite cannot be re selected and recovered, relying entirely on flotation; First desulfurize (sulfide ore), then float white tungsten, and heat up to select and remove calcium gangue.
XCF/KYF inflatable flotation machine: the main equipment for rough selection, scanning selection, and fine selection of scheelite.
Mixing bucket: slurry mixing, chemical mixing (sodium carbonate, water glass, oleic acid/sodium oleate collector).
Process: First float sulfide ore (desulfurization) → rough selection of scheelite → high-temperature concentrated slurry selection to solve the interference of calcium containing gangue such as calcite and fluorite.
