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Industry: Mining Coal

Location:  Central QLD Australia

Media: Coal Fines, Magnetite


A coal mining site required flow measurement of a mixture of coal fines and magnetite through chromium and steel, rubber lined pipes. Due to the highly abrasive process slurry combined with highly corrosive chemicals a clamp on intrusive flowmeter was tested. Process solids varied from 20% up to 50%. The flow included a large concentration of MAGNETITE .Lack of suitable meters prevented proper process control on the plant. During a flow survey conducted on the site most of the existing slurry lines were measured within a few hours.

Aquip Flowservices installed a portable high power Compuflow Doppler flowmeter and consistent and accurate flow readings were achieved within minutes.

Problems Solved:

  • The flow could not be stopped and the meter had to be installed on a “live” pipeline.
  • The process slurry –contained high concentration of MAGNETITE.
  • A Portable Compuflow ultrasonic Doppler-clamp on (strap on) flow meter was installed without cutting the pipe.
  • The test site sensors were attached with simple strap for quick removal and simple re-installation.
  • The meter provided accurate flow data allowing management to justify purchase of fixed Doppler flowmeters.
  • Process engineers were able to control production and rely on accurate flow meter results.

Outer Diameter: 100mm, 170mm, 200mm, 250mm

Wall Thickness: 9-13mm

Roughness: 0.1mm

Pipe Material: Carbon Steel, Chromium

Lining: 10mm Rubber Lining

Medium: ORE Slurry

Medium Temperature: 15-19C