
Spiral Test Rig
Power requirement | Power requirement 3 HP ,4 pole,1440 rpm,3phase ,415 V |
Sump Capacity | Sump Capacity 375 – 500 Litre Capacity |
Pump | 1” x 1.5’’ Centrifugal rubber lined pump |
Feed distributor | 4 way splitter |
Slurry distributor | Slurry distributor Achieves feed flow variation with slurry solids operating up to 40% |
Spirals | Fiber glass base with PU lining |
Feed flow rate | 135 lpm(minerals) |
Capacity | 1 to 3 TPH for single start spiral |
Feed particle size | 0.03 to 2 mm (10 mesh to 450 mesh) |
Wash water consumption Up to 11 GPM | Up to 11 GPM |
Spiral test rig is provided with | |
• Motor with Motor Starter | |
• Open Grid platform | |
• Product manual sampler | |
• Internal piping and bypass valves | |
• Wheel mounted assembly | |
• Pulp distributor or cyclone | |
• Safety ladders and hand rails | |
• Structural spiral support frame | |
• Products collection provision |
Description
A Spiral Test Rig is a laboratory apparatus used to simulate and assess the separation efficiency of materials in industries such as mining, mineral processing, recycling, and environmental engineering. It is specifically designed to conduct spiral gravity separation tests, which are a common method for separating different mineral particles based on their density and size.
The spiral test rig typically consists of a spiral-shaped trough or channel in which material is fed and subjected to spiral motion created by gravity. The variation in particle size and density causes the material to stratify as it moves through the spiral, with heavier particles traveling differently than lighter ones. This process mimics the operation of full-scale spiral concentrators used in industrial separation plants but is designed for laboratory-scale testing and optimization.
Key Features
Precise Gravity Separation
Versatility
Scale-up Potential
Simple and Effective Design
Reproducible Results
Compact Size
Adjustable Parameters
Applications
Mineral Processing
Coal Processing
Recycling
Environmental Engineering
Pilot Testing
Laboratory Research
FUNCTION PRINCIPLE
Working Principle
The spiral test rig operates on the principles of gravity separation and centrifugal forces. Here’s how it works:
- Feeding the Material:
- A slurry or dry material mixture containing various minerals or particles is introduced into the spiral trough. The mixture can include ores, coal, or even waste materials, depending on the application.
- Spiral Motion:
- The spiral trough is inclined at a certain angle to promote the movement of the material. As the mixture moves down the spiral, the heavier, denser particles are subjected to a higher centrifugal force, causing them to move toward the outer edge of the spiral, while the lighter, less dense particles are pushed toward the center or inner part of the spiral.
- Stratification:
- The separation occurs as the material progresses along the spiral. The particles with higher density are classified into the outer bands, while the lighter particles form different layers within the spiral. This stratification process results in a more concentrated and separated mixture, with different fractions being collected at various points along the spiral.
- Collection of Fractions:
- The separated material is collected at different points of the spiral trough, where the heavy and light fractions are separated. These fractions can then be further analyzed or processed, depending on the intended use of the material.
- Separation Efficiency:
- The rig allows operators to adjust various parameters such as flow rate, material concentration, and spiral design, enabling optimization of separation efficiency for different types of materials.