Mechanical agitation flotation machine, uses differences in mineral surface physical and chemical properties to achieve separation of valuable minerals from gangue. Impeller self-aspirates air + strong agitation, classic equipment for non-ferrous metal flotation of copper, lead, zinc, gold, silver, etc.
The Flotation Machine is a mechanical device that accomplishes the flotation process. In the flotation machine, chemically treated pulp is agitated and aerated, causing certain mineral particles to selectively attach to air bubbles, float to the pulp surface, and be scraped off as froth product (concentrate), while the remainder stays in the pulp (tailings), achieving mineral separation. This series covers four types of mechanical agitation flotation machines: XJ (A-type), XJZ (improved type), SF, and JJF, with effective volumes from 0.13-20 m³, suitable for large, medium, and small beneficiation plants.
Flotation reagents such as collectors, frothers, and modifiers are added to the pulp, making the target mineral surface hydrophobic and the gangue mineral surface hydrophilic, creating conditions for subsequent bubble attachment.
The impeller rotates at high speed, creating negative pressure that draws in air. Air is sheared into fine bubbles (diameter 0.5-2mm) dispersed in the pulp. Simultaneously, agitation ensures thorough contact between reagents and minerals.
Hydrophobic mineral particles collide with and attach to bubble surfaces, forming mineralized bubbles. The bubbles carry mineral particles upward to the pulp surface under buoyancy.
Mineralized bubbles rise to the surface forming a froth layer. The scraper rotates to scrape off the froth as concentrate. Hydrophilic gangue minerals remain in the pulp and are discharged through the tailings outlet.
Classic mechanical agitation self-aspirating flotation machine with integrated impeller agitation and aeration. Simple and reliable structure. Suitable for small to medium beneficiation plants, sulfide ore roughing/scavenging.
Optimized impeller structure and cell design based on XJ. Dual-cone impeller enhances pulp circulation. Better aeration uniformity with about 15% power reduction.
Backward-inclined double-sided blade impeller with strong self-aspiration of air and pulp. Stable pulp level with minimal turbulence. Capacity covers 0.37-20 m³, suitable for large-scale beneficiation.
Deep cell design with stable pulp level and thick froth layer, fast flotation speed. Suitable for coarse and difficult-to-float minerals. Can form a combined unit with the SF type.
| Model | Effective Volume (m³) | Capacity (t/h) | Impeller Diameter (mm) | Impeller Speed (r/min) | Scraper Speed (r/min) | Scraper Power (kW) | Agitation Power (kW) | Cell Size (mm) | Unit Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| XJ Type Flotation Machine | |||||||||
| XJ-0.13 (1A) | 0.13 | 0.05-0.16 | 200 | 593 | 17.5 | 0.55 | 1.5 | 500×500×550 | 320 |
| XJ-0.23 (2A) | 0.23 | 0.12-0.28 | 250 | 504 | 17.5 | 0.55 | 2.2 | 600×600×650 | 390 |
| XJ-0.35 (3A) | 0.35 | 0.18-0.4 | 300 | 483 | 17.5 | 0.55 | 3.0 | 700×700×710 | 430 |
| XJ-0.62 (4A) | 0.62 | 0.3-0.9 | 350 | 400 | 16 | 1.1 | 3.0 | 900×820×850 | 860 |
| XJ-1.1 (5A) | 1.1 | 0.6-1.6 | 500 | 330 | 16 | 1.1 | 5.5 | 1100×1000×1000 | 1390 |
| XJ-2.8 (6A) | 2.8 | 1.5-3.5 | 600 | 280 | 16 | 1.1 | 11 | 1750×1600×1100 | 2430 |
| XJ-5.8 (7A) | 5.8 | 5.0-7.0 | 750 | 240 | 16 | 1.5 | 22 | 2200×2200×1200 | 3533 |
| XJZ Type Flotation Machine (Improved) | |||||||||
| XJZ-0.35 | 0.35 | 0.18-0.4 | 300/180 | 470/670 | 17.5 | 0.55 | 1.5 | 700×700×700 | 450 |
| XJZ-0.62 | 0.62 | 0.3-0.9 | 350/200 | 400/580 | 16 | 0.55 | 3.0 | 900×900×500 | 870 |
| XJZ-1.1 | 1.1 | 0.6-1.6 | 500/280 | 330/485 | 16 | 1.1 | 5.5 | 1100×1100×1000 | 1500 |
| XJZ-2.8 | 2.8 | 1.5-3.5 | 600/350 | 280/360 | 16 | 1.1 | 11 | 1750×1700×1100 | 2600 |
| SF Type Flotation Machine | |||||||||
| SF-0.37 | 0.37 | 0.2-0.4 | 300 | 352 | 17 | 1.1 | 1.5 | 700×700×750 | 468 |
| SF-0.7 | 0.7 | 0.3-0.9 | 350 | 400 | 16 | 1.1 | 3.0 | 820×900×920 | 805 |
| SF-1.2 | 1.2 | 0.6-1.2 | 450 | 312 | 16 | 1.1 | 5.5 | 1100×1100×1100 | 1373 |
| SF-2.8 | 2.8 | 1.0-3.0 | 550 | 268 | 16 | 1.1 | 11 | 1700×1600×1150 | 2138 |
| SF-4 | 4 | 2.0-4.0 | 650 | 268 | 16 | 1.5 | 15 | 1850×2050×1200 | 2583 |
| SF-8 | 8 | 4.0-8.0 | 760 | 191 | 16 | 1.5 | 30 | 2200×2900×1700 | 4129 |
| SF-10 | 10 | 5.0-10 | 760 | 191 | 16 | 1.5 | 30 | 2200×2900×1700 | 4486 |
| SF-20 | 20 | 5.0-20 | 760 | 191 | 16 | 1.5 | 30×2 | 1850×3800×2000 | 9828 |
| JJF Type Flotation Machine | |||||||||
| JJF-1 | 1 | 0.3-1.0 | 280 | 443 | 18 | 1.1 | 7.5 | 820×900×950 | 1370 |
| JJF-2 | 2 | 0.5-2.0 | 280 | 443 | 18 | 1.1 | 7.5 | 1100×1100×1100 | 1800 |
| JJF-3 | 3 | 1.0-3.0 | 350 | 360 | 16 | 1.5 | 11 | 1700×1600×1150 | 2100 |
| JJF-4 | 4 | 2.0-4.0 | 410 | 365 | 16 | 1.5 | 11 | 1600×2150×1250 | 2350 |
| JJF-8 | 8 | 4.0-8.0 | 540 | 233 | 16 | 1.5 | 22 | 2200×2900×1400 | 4500 |
| JJF-10 | 10 | 5.0-10 | 540 | 233 | 16 | 1.5 | 22 | 2200×2900×1700 | 4820 |
| JJF-16 | 16 | 5.0-16 | 700 | 180 | 16 | 1.5 | 37 | 2850×3800×1700 | 9760 |
| JJF-20 | 20 | 5.0-20 | 700 | 180 | 16 | 1.5 | 37 | 2850×3800×2000 | 10500 |
※ Technical data subject to change without notice. All models support multi-cell series configuration to meet different beneficiation process requirements.
| Component | Function | Material / Features |
|---|---|---|
| Cell Body | Rectangular or U-shaped steel plate welded cell, containing pulp and completing the flotation process. Multiple cells connected via intermediate boxes when in series | Q235 steel plate welded, lined with wear-resistant rubber or alloy |
| Impeller | High-speed rotation creates negative pressure to draw in air, shearing air into fine bubbles and agitating the pulp | Wear-resistant alloy cast iron; XJZ type uses dual-cone impeller |
| Stator | Fixed around the impeller, guides pulp circulation and stabilizes bubble distribution, preventing pulp turbulence | Wear-resistant rubber or alloy lining |
| Main Shaft Assembly | Connects motor to impeller, transmitting rotary power. Supported by upper and lower bearings,Withstand axial and radial loads | 45# steel main shaft, rolling bearing, forced lubrication |
| Drive Device | Motor drives the main shaft through belt or direct coupling, controlling impeller speed | Y series motor + V-belt / direct-coupled reducer |
| Froth Scraping Mechanism | Consists of scraper blades and drive shaft, scraping mineralized froth from the surface into the concentrate launder | Rubber scraper blades, independently motor-driven |
| Air Intake & Circulation System | Includes air intake pipe, suction pipe, and pulp circulation holes, controlling aeration rate and pulp circulation path | Steel piping, adjustable valves for aeration control |
Four model series: XJ (classic self-aspirating), XJZ (energy-saving improved), SF (backward blade, high capacity), JJF (deep cell, fast flotation). 26 specifications covering the full volume range of 0.13-20 m³, meeting various scales and mineral types.
The high-speed rotating impeller self-aspirates air, no need for additional blowers or compressed air systems. Reduces investment cost and pipeline maintenance, suitable for beneficiation plants with limited site conditions.
Impeller and stator use wear-resistant alloy cast iron or rubber lining; cell body lined with wear-resistant rubber. Key wear parts can be individually replaced, significantly reducing lifecycle maintenance costs.
SF type has strong pulp suction capacity, JJF type has stable pulp level. They can form a combined unit with SF as the suction cell and JJF as the direct-flow cell, fully leveragingRespective advantages for better flotationIndex.
By adjusting impeller speed, aeration rate, reagent types, and dosage, flexibly adapts to flotation separation of sulfide and oxide ores including copper, lead, zinc, gold, silver, molybdenum, nickel, and iron.
Single cellIndependent operation or multiple cells in series for a complete roughing-cleaning-scavenging process. Cells arranged horizontally with gravity pulp flow, flexibly adding or removing cells based on process needs.
Flotation recovery of sulfide ores including copper, lead, zinc, nickel, molybdenum, antimony. Classic XJ/SF configuration with roughing-cleaning-scavenging three-stage closed circuit, recovery rate up to 90% or more.
Gold and silver ore flotation enrichment. JJF type deep cellFavorable coarse gold recovery, reducing over-grinding loss. Both gold-bearing sulfide ores and quartz vein gold can be effectively floated.
Flotation purification of non-metal minerals such as graphite, fluorite, phosphate rock, quartz sand, and feldspar. ReagentSolution adjusted based on mineral floatability differences to achieve high-grade concentrate.
Iron concentrate desiliconization and desulfurization reverse flotation. SF/JJF large-volume models with cationic collectors canEnhance iron concentrate grade from 63% to over 67%.
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