Probing with Instek Control

Probing with Instek Control

Instek Control has introduced level measurement probes as an alternative to traditional measurement systems still employed throughout the flotation industry.

The LTM-2 probe was designed and developed in Germany specifically to meet the challenges of the flotation industry. The probe is a two-wire loop powered instrument constructed from high grade stainless steel, with no moving parts and utilises a patented form of conductivity called the electro potentiometric effect to determine the pulp/froth interface.

In 2016 Booysendal Platinum’s concentrator plant agreed to trial a unit supplied by Redland Engineering, (distributors for the LTM-2 in Mpumalanga and Limpopo). The LTM-2 probe was trialled on a column float cell, a cleaner float cell and on a concentrate sump, all applications known to pose difficulties IRO accurate level measurement when utilising conventional measurement methods.

Prior to the trials, level measurements were achieved by means of a bubbler for the columns, a ball-and-striker plate for the cleaner float cells and an ultrasonic level sensor on the concentrate sumps. These methods all posed challenges, which can result in production losses. Subsequently, Booysendal Platinum have replaced all bubbler tubes with LTM-2 probes and they will consider phasing in LTM-2 probes in the concentrate sumps on the cleaner circuit and with a view to implementing them in the flotation cells in the future.

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