SDG – Technologies

Author name: Kyle Pillay

Lafarge Cement KLN4 Line Liquid resistance Starter Replacement

Problem The KLN 4 production line at Lafarge Lichtenburg’s Raw Mill, Coal Mill and 1MW Fan were regularly breaking down and resulted in down time and production losses. Evaluation tests done on the Liquid Resistant Starters(LRS) confirmed that the starters generated high startup torque spikes and were subjecting the drive trains to damaging high torque […]

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Anglo Platinum, South Africa
Tumela Mine, no 8, Compressor.

Problem: The mine’s Compressor no 8, a 15 MW compressor, was flagged as the mine’s worst performing asset. The compressor had a history of frequent breakdowns, including gearbox and motor failures, resulting in high repair and maintenance costs.  Intervention: A new high turndown LRS with stainless electrodes and a MillSafeStart Condition Monitoring, Protection and Control

Anglo Platinum, South Africa
Tumela Mine, no 8, Compressor.
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THARISA MINERALS 3 NEW ADVANCED LIQUID RESISTANCE  STARTERS

PROJECTS THARISA MINERALS 3 NEW ADVANCED LIQUID RESISTANCE  STARTERS (ALRS’s). PROBLEM Tharisa Minerals experienced mill gearbox and motor failures at their Voyager Plant near Mooinooi,  Rustenburg in South Africa.   Typical incidents The LRS’s overheated as a result of the shorting contactor opening during normal mill running.  This caused loss of production time as it took

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LRS & Safe Start Documents

Datasheet for Advanced LRS
Advanced LRS Protection Overview
Testing of an LRS on a grinding mill – Typical Results
Safer Starting – Engineering Background
LRS Maintenance Manual
Datasheet for Cooler
List of installations

Other Hardware Datasheets

Datasheet for Etherpad (232)
Datasheet for Etherpad (485/Epad3)
Datasheet for Buffer
Datasheet for BMSRTU
Datasheet for OPTO3
Datasheet for OPTO4
Datasheet of OPTO1