The design of clarifiers focuses on minimizing solids escape in the overflow liquor stream and effective solids settling and removal.

MIP Design Considerations

Thickeners and clarifiers are operating in the minerals processing, chemical water treatment, industrial and effluent treatment throughout the world. In addition to this existing technology, MIP Process Technologies (Pty) Limited brings customized and tailor-made process solutions.

In our design, we consider not only your process data, but also the long-term mechanical performance, maximum circuit efficiency, availability and minimized operating costs.

Some of our design considerations include:

Precise sizing for the dutyigh torque planetary gearbox
Accurate torque measurement including a “high torque” audible and visual alarm with over torque trip” for mechanism protection in the event of ultra high torque conditions
High efficiency feedwell – adjustable feed dilution system
Ability to monitor and/or operate via Scada, if so desired
Multiple Flocculant addition points for easy optimization
Full span walkway for dual emergency exits and to allow easy access.

Design Criteria

In order to ensure we provide the best technical solution, each thickener is custom designed for a specific application.

Typically, the tank is modeled with finite elements and the sub-structure and the bridge with beam elements. This modeling has resulted in MIP being able to optimize designs and provide the most cost effective solutions.

Special attention is given to the design of the thickener feedwell (for high efficiency) and specially profiled rake blades for maximum transfer of viscous and heavy material at minimal torque consumption.

As part of its development initiatives, MIP Process Technologies (Pty) Limited has committed itself to ongoing test work and research in order to improve our competitive technology and to be ahead of our competitors.

Effect of Feed Dilution

The introduction of clear supernatant into the feedwell dilutes the pulp and thus lessens the effects of hindered settling. The graph below reflects this relationship and higher settlement rates are achieved with the lower feed concentration.

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Due to on-going development, we are continuously increasing our product range.