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UltraForm-MXFlexiPoly-RNanoForm Z300EcoFab P200
Flotation Machine For Sale
Our Flotation Machine are available in different styles and numerous model sizes in each style to adapt to various mineral separation requirements.
- Effective Volume:0.37-8m³
- Processing Ability:0.2-8m³/min
- Flotation machine is suitable for the separation of non-ferrous metals, ferrous metals, precious metals, non-metallic mineral, chemical blank parts and other raw material
What is a Flotation Machine?
A flotation machine is a device that utilizes chemical differences in mineral surfaces to separate valuable minerals from waste. Its key roles are to concentrate low grade ore into a high grade concentrate, to separate a wide range of valuable minerals, and to remove impurities.
The main jobs of a flotation machine are:
- Concentration: Taking ore with maybe 1% valuable mineral and upgrading it to a concentrate with 20%, 30%, or even higher grade.
- Separation: Handling complex ores containing multiple valuable minerals (like copper, lead, and zinc together) and selectively floating each one into its own separate concentrate.
- Purification: Removing unwanted or harmful impurities from a concentrate.
Which Industries and Minerals Rely Heavily on Flotation Machines?
Flotation is essential in mineral processing for base metals (copper, lead, zinc, nickel), precious metals (gold, silver, platinum), iron ore upgrading, industrial minerals (phosphate, potash, fluorspar), coal cleaning, and even wastewater treatment.
Core Applications in Mineral Processing
- Base Metals (Non-Ferrous): This is flotation’s heartland. It’s the primary method for concentrating sulfide ores of copper, lead, zinc, nickel, cobalt, molybdenum, antimony, tin, tungsten. It’s also adapted for some oxide ores of these metals.
- Iron Ore: Used in reverse flotation to remove silica impurities from iron concentrates, or sometimes direct flotation to recover fine iron minerals.
- Precious Metals: Gold, silver, and platinum group metals are often recovered by floating the sulfide minerals they are associated with. Dedicated flotation circuits for precious metals also exist.
- Industrial Minerals: Critical for concentrating phosphate rock, potash salts, fluorspar, barite, talc, graphite, and cleaning coal (removing sulfur and ash).
- Rare Metals & Rare Earth Elements: Used in concentrating certain ores containing these valuable elements.
Flotation machine structure
Principle of Flotation Machine
Flotation works by selectively altering mineral surfaces with chemicals (reagents) to make target minerals water-repellent (hydrophobic). These hydrophobic minerals attach to air bubbles introduced into the pulp and float to the surface for collection.
Flotation machine type
There are three main types of ZONEDING flotation equipment, namely mechanical agitation flotation machines (BF, JJF type), inflatable agitation flotation machines (XCF type, KYF type) and inflatable flotation machines (XJB rod flotation machine).
Flotation Machine Size
| Category | Specification Model | Effective cubage （m³） | Processing capacity （m³/min） | Main shaft loam board | Dimensions (L×W×H) （m） | Single trough Weight （t） | |||
| Power（kw） | Rotate Speed（r/min） | Rotate Speed(r/min） | Power（kw） | ||||||
| XJK type flotation machine | XJK-0.35 | 0.35 | 0.18-0.4 | 1.5 | 483 | 25 | 1.1 | 0.7×0.7×0.7 | 0.5 |
| XJK-0.62 | 0.62 | 0.3-0.9 | 3.0 | 400 | 25 | 1.1 | 0.90×0.82×0.85 | 1.0 | |
| XJK-1.1 | 1.1 | 0.6-1.6 | 5.5 | 330 | 25 | 1.1 | 1.1×1.1×1 | 1.4 | |
| XJK-2.8 | 2.8 | 1.5-3.5 | 11 | 280 | 25 | 1.1 | 1.75×1.6×1.1 | 2.5 | |
| XJK-5.8 | 5.8 | 5-7 | 22 | 240 | 25 | 1.5 | 2.2×2.2×1.2 | 3.6 | |
| SF type flotation machine | SF-0.37 | 0.37 | 0.2-0.4 | 1.5 | 386 | 25 | 1.1 | 0.7×0.7×0.75 | 0.5 |
| SF-0.7 | 0.7 | 0.3-0.9 | 3 | 400 | 25 | 1.1 | 0.9×0.82×0.95 | 1.0 | |
| SF-1.2 | 1.2 | 0.6-1.6 | 5.5 | 330 | 25 | 1.1 | 1.1×1.1×1.1 | 1.9 | |
| SF-2.8 | 2.8 | 1.5-3.5 | 11 | 268 | 25 | 1.1 | 1.75×1.6×1.15 | 2.6 | |
| SF-4 | 4 | 2-4 | 15 | 220 | 25 | 1.5 | 1.85×2.05×1.2 | 2.9 | |
| SF-8 | 8 | 4-8 | 30 | 191 | 25 | 1.5 | 2.2×2.9×1.4 | 4.2 | |
| SF-10 | 10 | 5-10 | 30 | 191 | 25 | 1.5 | 2.2×2.9×1.7 | 4.5 | |
| SF-20 | 20 | 5-20 | 30×2 | 191 | 25 | 1.5 | 2.85×3.8×2 | 9.9 | |
| JJF type flotation machine | JJF-2 | 2 | 1-3 | 7.5 | 443 | 25 | 1.5 | 1.4×1.4×1.1 | 1.7 |
| JJF-4 | 4 | 2-4 | 11 | 305 | 25 | 1.5 | 1.6×2.15×1.25 | 2.4 | |
| JJF-8 | 8 | 4-8 | 22 | 233 | 25 | 1.5 | 2.2×2.9×1.4 | 4.5 | |
| JJF-10 | 10 | 5-10 | 22 | 233 | 25 | 1.5 | 2.2×2.9×1.7 | 4.9 | |
| JJF-16 | 16 | 5-16 | 30 | 180 | 25 | 1.5 | 2.85×3.8×1.7 | 8.0 | |
| JJF-20 | 20 | 5-20 | 37 | 180 | 25 | 1.5 | 2.9×3.8×2.0 | 10.5 | |
Flotation machine case
What are the main differences between mechanical (agitation) and inflatable flotation machines? How to consider this during selection?
Mechanical: Relies on an impeller for air suction and slurry circulation; classic design, good for coarser particles, stable operation, but relatively higher energy consumption. Inflatable (e.g., self-aerating, jet, flotation columns): Often requires external blowers for air supply; allows large, adjustable airflow, lower energy consumption, high efficiency for fine particles, easier to scale up. Selection depends on ore characteristics (particle size, density), capacity, separation stage (roughing/cleaning), energy consumption, and investment budget.
Why are “aeration rate” and “pulp level” important in a flotation machine? How are they adjusted?
Aeration rate: Directly affects bubble quantity, size, and dispersion, influencing mineral-bubble collision probability and froth stability. Insufficient air lowers recovery; excessive air can disrupt the froth layer or increase gangue entrainment. Usually controlled by adjusting the air inlet valve or blower frequency. Pulp level: Determines the froth depth and the height of the separation zone. High level gives stable froth but risks gangue entrainment (lower grade); low level results in a thin, brittle froth, potentially losing valuable minerals (lower recovery). Typically adjusted via the weir height in the tailing box or automated control systems.
What causes poor “slurry circulation” (like “sanding”) inside a flotation cell? How to fix it?
Causes: Severe wear of impeller/stator, insufficient impeller speed, excessively high pulp density, too coarse feed particle size, improper clearance between impeller and cell bottom, or large fluctuations in feed rate. Solutions: Inspect and replace worn parts (impeller/stator), ensure correct speed, adjust pulp density appropriately, control grinding fineness, adjust impeller clearance, stabilize feed rate.
Besides the impeller and stator, what other key components of a flotation machine require maintenance attention?
Other key components include: Main bearings (need regular lubrication, temperature/noise checks), drive system (belt tension/wear, reducer oil level/quality), tank body (check for corrosion, wear, leaks), froth scraping mechanism (scraper wear, drive function), and level control system (sensor accuracy, actuator flexibility).
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