Applications

Industry - Surface mining

Flow Measurement in Gold Ore Processing Plant

Application

• Stainless steel pipe DN 500

• Partial filling with heavy fluctuation

• Acidified, very turbid water (approx. 50 NTU)

Definition of tasks

• Replacement of a non-functioning clamp-on measurement

• Continuous flow measurement to control a processing plant for acidified water

• Reliable measurement at fluctuating level, variable turbidity and acid contents

Solution

• The cross correlation method with digital pattern detection has been used. Here the

   pollution load does not affect the velocity evaluation.

• The corrosion-proof pipe sensor Type POA was installed directly from the outside using a

   welding nozzle bottom upwards flush with the channel bottom. The sensor provides readings

   on level and flow velocity directly to the transmitter.

• The transmitter computes the current flow rate and transmits the data via ModBus to the

   processing plant control system.

Advantages

• Easy and uncomplicated retrofitting without dismantling works on existing pipeline

• Reliable and failure-free measurement, even under heavily fluctuating intake conditions

• Quick and easy installation and commissioning

• Programming and commissioning in the national language

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