DESCRIPTION

This Flotation Machine, with its Denver D-12 type design and advanced features, is ideal for flotation tests in ore beneficiation laboratories. Its user-friendly design allows the column and agitator shaft to be easily moved up and down with a hand controller.

  • Electro-Mechanical Mechanism: The column and agitator shaft can be adjusted up and down with ease using an electro-mechanical mechanism controlled by a hand controller, enhancing ease of use and minimizing operator intervention.
  • Flotation Cells: Equipped with four AISI 316 stainless steel flotation cells in various volumes. Volumes are 1,2,3,4 Liters. Transparent plexiglass cells of the same volumes are also available as an option.
  • Processing Capacity: Capable of processing approximately 0.250 kg to 2.0 kg of material per operation.
  • Speed Display: The digital speed display allows for easily stepless adjustment of the impeller speed between 0 – 2880 rpm.
  • Rotor and Stator Sets: Supplied with one large and one small set of flotation rotors and stators, made from AISI 316 stainless steel and white Delrin plastic.
  • Air System: The machine is equipped with an air regulator (R ¼”) and manometer, operating with nominal air pressure of 0.5-1 bar from your lab’s supply. An adjustable float flowmeter (1 – 12 L/min) allows precise air flow control.
  • Repeatability and Reliability: Repeatability is essential for verifying the reliability and accuracy of results. This Flotation Machine, with its high-quality components and precise control mechanisms, ensures repeatable outcomes. The advanced design provides reliable and consistent data in laboratory settings, allowing you to trust in the validity of your experimental results.

TECHNICAL DATA

Application Separation, Froth flotation, Mineral processing, Waste water treatment
Standards CE
Power and Electricity 0.75kW, 220V, 1p, 50 Hz
Compatible with various voltages.
Dimensions 450 x 760 x 630 mm
Weight 85 kg

Application Areas

The laboratory flotation machine is primarily used to enrich ores containing valuable minerals and metals. This method separates minerals based on their hydrophobic (water-repellent) and hydrophilic (water-attractive) properties and is commonly applied in the enrichment of the following materials:

  • Sulfide Minerals: Sulfide minerals containing copper, lead, zinc, and molybdenum are enriched by flotation. Examples include:
    • Copper Sulfide (Chalcopyrite)
    • Lead Sulfide (Galena)
    • Zinc Sulfide (Sphalerite)
  • Gold and Silver: Gold and silver ores, particularly when combined with sulfide minerals, can be enriched by flotation.
  • Industrial Minerals:
    • Fluorite (CaF₂): Used in the chemical and ceramics industries, fluorite is purified through flotation.
    • Phosphates: Phosphate minerals, used as fertilizers in agriculture, are enriched by flotation.
    • Calcite and Dolomite: These minerals, used in the paper, paint, and construction industries, are processed by flotation.
  • Coal: Flotation is used to reduce ash content and enhance energy value, particularly effective for fine coal particles.
  • Iron-Containing Minerals: Iron minerals such as magnetite and hematite can be separated by flotation, especially in industrial iron production requiring high purity.
  • Rare Earth Elements: Rare earth elements, essential for the electronics, energy, and defense industries, can be efficiently enriched by flotation.

Working Principle

The laboratory flotation machine operates on the principle of separating fine-grained materials by flotation in a water environment. In this process, mineral particles interact with water, air bubbles, and chemical reagents, allowing specific minerals to be floated to the surface. Here are the key steps in the machine’s operation:
  1. Sample Preparation and Feeding: A mineral sample mixed with water is added to the flotation cell. The impeller and stator system inside the cell uniformly mix the slurry and generate air bubbles.
  2. Addition of Reagents: Chemical reagents (collectors, frothers, etc.) are added to the mixture to float specific minerals to the surface. These reagents create a bond between mineral particles and air bubbles, enabling flotation.
  3. Mixing and Air Injection: The impeller continuously agitates the slurry, while air is supplied to the cell at an adjustable flow rate. As air bubbles rise, they attach to specific minerals, lifting them to the surface. Unwanted minerals settle at the bottom of the cell.
  4. Collection of Froth Layer: Mineral-loaded bubbles form a froth layer at the top of the cell. This froth layer is manually or automatically collected as a concentrated sample.
  5. Waste Separation: Remaining waste settles at the bottom of the flotation cell and is discharged after the process. This waste can either undergo further processing or be discarded in the sample preparation stage.

This sequence ensures the selective enrichment of minerals and is an effective method for obtaining reliable and repeatable flotation results in laboratory settings.