Hawk Measurement Systems has released the ‘ORCA’ Sonar Bed Level Transmitters, designed to maximise the efficiency and performance of tailings thickeners, CCD’s, hi-rate thickeners, lamella thickeners and clarifiers.
According to Hawk, by monitoring the two independent interface densities the company is able to provide reliable process feedback for control of the underflow pump to optimize the underflow density; removal of operators from manually controlling underflow pumps based on rake torque and bed pressure which are greatly affected by density change; reduction of overall chemical costs by providing a bias in dosing chemical to the minimum dose at all times; and reduction of electricity costs on returning water from tailings dams by pumping optimized tailings bed densi¬ties.
The new Hawk transducer designs include three to seven sonar crystals mounted in a single head.
Each sonar array produces a concentrated sonar beam, providing more emitted power and collecting more returned signals.
According to Hawk, array transducers yield better penetration, higher sensitivity, and better overall performance with significant savings in the most difficult environments.
Hawk Measurement Systems
03 9873 4750
brian.tiedemann@hawk.com.au
www.hawk.com.au