IM JULY 23 July 23 | Page 17

MINE VENTILATION
The Vigilante AQS was created to solve 100 % of the applications for mine ventilation monitoring and controlling , Maestro says
Version two of the platform was featured on the company ’ s stand where employees showcased its newest capabilities .
The Vigilante AQS was created to solve 100 % of the applications for mine ventilation monitoring and controlling , Maestro says , offering seven plug and play ports . The modular design provides extremely flexible integration to any SCADA , PLC , DCS , PLS or HMI system , according to the company . It also has a single point IP address to make the system quick , simple and economical to match to any Ethernetbased network .
Maestro says it has sold hundreds of Vigilante AQS systems to mines all over the world and
expects the improved functionality of the secondgeneration platform to lead to further sales .
Locking in maintenance costs
TLT-Turbo recently formalised what it says is a large contract for services , spare parts supply and a three-year overhaul of four fans as part of a framework agreement with Poland-based KGHM . The contract further cements an existing agreement that has been in place with the copper and silver mining company since 2018 .
The scope of work for the delivery of services includes complete overhaul of the rotors , replacement of the main bearings of the built-in motors , renewal of the sealing systems of the built-in motors , maintenance of the main weather ventilation shutter , and maintenance of the regulation and control unit . These services will be jointly supplied with TLT-Turbo ’ s Polish service provider , HeymVent .
At one of KGHM ’ s Poland-based underground copper mines , it is operating four GAF 38 / 25-1 type fans with adjustable blades for reverse operation and built-in motors . These TLT-Turbo fans are used for ventilation of the mine system and are essential for the survival of miners working there , TLT-Turbo said .
TLT-Turbo said : “ This agreement is advantageous for the customer as the fans are designed for further operation and regular maintenance , which ensures optimum availability of the ventilation system . This makes a major contribution to occupational safety for the miners .”
The contract is also significant in that this is the first time TLT-Turbo has agreed to hydraulic revisions at a fixed price , meaning there will be no additional unplanned costs for KGHM in the future .
“ Another benefit for the customer is that the turnaround times for hydraulic overhauls will be significantly reduced ,” it said . “ The overhauled hydraulics will therefore be available earlier for reassembly .”
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