Rheology and Slurry Flow
Rheology and slurry flow services from SGS use state-of-the-art rheological testing and procedures to characterise the flow of slurries in many industrial processes.
Rheology is the science of the flow of matter. The flow behaviour of process slurries impacts energy and mass transfer-based unit operations. Processes that involve physical separation of liquids from solids and of solids from solids (i.e. slurries) are also rheology dependent.
Rheometallurgy applies these principals in a practical fashion to develop design criteria for metallurgical installations. The rheological properties of feed slurries:
- Are a decisive factor in the success or failure of projects
- Impact enormously in the economics of full-scale plants
- Help guide optimised equipment selection including pump sizing
Potential Applications of Rheology
- Defining optimum pumping conditions for slurry transport provides direct design criteria. Typical examples include:
- Pumping of concentrates, beneficiated products and tailings for disposal
- Pump sizing
- Paste characterisation
- Slurry handling and screening
- Liquid-solid separation
- Generating high temperature rheology data to characterise the flow of hot slurries. Such data informs the design of heat exchangers, autoclaves, heated holding tanks etc.
- Process rheology and deposit mapping allow for the blending of ore, hence creating the pre-requisites for low cost slurry flow optimisation throughout the plant
- Product characterisation – effective rheology testing provides you with correct mass balances, accurate process design data and efficient process conditions in operation
- Reaction monitoring and control and traditional engineering design
We use state-of-the-art rheological testing equipment and procedures. We can test a wide variety of ore, waste and chemical process slurries. We offer:
- Rheology testing using standardised operating equipment
- Design and development of specialised testwork to support slurry transport, solid liquid separation and pump scale-up
- Data analysis by mathematical models
- Recommendation of plant operating procedures
- Preparation of design criteria for metallurgical processes and equipment sizing
Rheology Testing with SGS
A thorough rheological understanding of any slurry system is needed because flow properties influence the economics of any continuous operation involving mineral, metallurgical and chemical process slurries. Our experts:
- Generate rheology data early in a project screening of unit processes for the proper allocation of project resources to the most effective process
- Use test protocols established over many years of experience, allowing us to consistently achieve accurate test results
- Provide expert data interpretation, leading to the selection of accurate process rheology design criteria and to solutions to project challenges
- Have developed a comprehensive rheology database for minerals and metallurgical materials for benchmarking purposes
- Have the depth of expertise to integrate process, environmental, analytical and mineralogical testing with rheological studies on a project-specific or stand-alone basis to give you the data you need to make informed decisions
Contact SGS today to find out more about our rheology and slurry flow services.Email us
Rheology Testing (438 KB)
Hydrometallugical Appliction of Rheology Testing
This paper emphasizes the importance of timely planning and execution of the rheology study, which is shown to be a critical component of the overall testwork program. Various applications are discussed, including elaboration of process and equipment design criteria.
Hydrometallurgy (625 KB)
Rheological Aspects of Nickel Hydrometallurgy
This paper covers the areas of rheological investigation that are required for metallurgical processes such as sample characterization, generation of test results, and interpretation of data. The importance of generating base line rheology during the initial stages of a testwork program is stressed, because of the impact of rheology on equipment selection and design for pilot plants.
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