Key Facts
- Tests
- Sizing of crushers
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Empirical data and simulation to meet performance requirements
TAKRAF Group projects essentially revolve around materials extracted from mines or quarries, with the physical properties of these materials making each individual case unique. In addition, our machines and systems are designed with specific targets, which requires not only standard data, but also material data obtained through specialized tests.
For some applications, laboratory tests also lead to tests for in situ use, which better reflect natural conditions. It is important to recognize the importance of complex tests. These are conducted in pilot plants on a more appropriate scale and over a longer period of time.
Measurements of drive power, throughput or loads taken on the original machines are the ultimate tests that enable one to draw empirical conclusions about the material tests.
Material test offerings for optimized mining solutions
Tests on the following material properties are offered:
- Density
- Moisture content
- Atterberg limits
- Size distribution
- Uniaxial compressive strength
- Cohesion
- Tensile strength
- Ultrasonic velocity
The following field tests are available for the design of excavators:
- Dornij test (in-situ)
- Point-load test
- Protodjakonow test
- Scheffler test (in-situ)
Specific tests for sizing of crushers include:
- Bond work index test
- Los Angeles test
- Bond abrasion index test
For DELKOR process equipment, the following are available:
- Pilot thickening test
- Pilot horizontal belt filter (HBF) test
- Flocculant screening
- Static cylinder settling test
- Dynamic thickener settling test
- Paste thickening test
- SG analysis
- Rheology measurement
- Vacuum filtration test
- Cake loading test
- Cake washing test
- Clarification test
- Flotation simulation
- Computational Fluid Dynamics (CFD) feed analysis
Simulation
The Discrete Element Method (DEM) has become increasingly important in recent years. It can simulate the interactions between individual particles of bulk materials. This allows not only for the simulation and visualization of material flow, but also for the analysis of the forces and moments acting on different parts of contact surfaces. Material tests are required to adjust simulation parameters and verify results. TAKRAF experts use DEM tools to optimize equipment design.
Benefits
Reliable performance prediction
We have a large database of results from various measurements collected over a lengthy period of time, which enables correlation between material data and machine data and thus reliable performance prediction.
Advanced testing facilities
TAKRAF has developed the Scheffler Test for in-situ application on excavator cutting resistance, in collaboration with the Freiberg University of Mining and Technology, Germany. This device is the most advanced and reliable test facility in its class on the market.
