TLT Turbo Africa fans boost ventilation and savings
TLT-Turbo Africa's new range of auxiliary and booster fans have not only improved ventilation in deep mines but yielded capital payback in under three months.
The company was approached by an ultra-deep mining operation located in Gauteng, requiring a recommendation for a suitable fan.
“Following numerous engagements, our Engineering and Research and Development teams set out to develop a customised solution, utilising our high efficiency A&B fan range,” Vusi Madlopha, TLT-Turbo Africa Head of Sales & Business Development relates.
At the time, the operation was using multiple installations of auxiliary fans to deliver the required volume and pressure (consuming ±630kwe). The mine was also operating three main surface fans, each consuming ±2MW of power.
Based on an assessment of the mine’s needs, the final recommendation made by TLT-Turbo Africa was for two MC1600AP-160KW dual stage fans from the newly launched A&B fan range (specifically 1600mm diameter, dual-stage fans, each fan driven by two 160kW high-efficiency motors).
The R&D team custom-designed the required fans to be modular, allowing their transport through shafts and access tunnels and once on site, they were easily assembled.
Three months after the installation, conditions underground at the shaft have improved noticeably, particularly in the previously warmer upper levels.
The installation and commissioning of the TLT-Turbo Africa fans has allowed the mine to permanently remove 14 other auxiliary fans (with a total rated power of 630kW).
The capital pay-back period on this project has been less than three months and with the lifespan of this project exceeding 10 years, the implied electrical cost savings of this solution are massive, the company states.
Lynas revenue jumps 21% as rare earth prices jump
Australian miner Lynas Rare Earths posted a 20.6% rise in revenue in the March quarter as selling prices for the key metals it mines hit record highs amid strong demand, particularly for neodymium and praseodymium (NdPr).
NdPr is used in magnets for electric vehicles and windfarms, in consumer goods like smartphones, and in military equipment such as jet engines and missile guidance systems.
The company said it plans to maintain production at 75% however, as it seeks to continue to meet covid-19 safety protocols and grapples with shipping difficulties. Shares in Lynas fell 6.1% after the results.
“They have faced a few logistics issues, and it would be good to know when they are going to start lifting their utilisation rates a bit,” said portfolio manager Andy Forster of Argo Investments in Sydney.
“Pricing has been pretty strong although it may have peeled back a bit recently. I still think the medium, long-term outlook is pretty good for their suite of products.”
Lynas post ed revenue of A$110mn ($85.37mn) for the three months to the end of March, up from A$91.2mn a year earlier as prices soared.
It said its full product range garnered average selling prices of A$35.5/kg during the March quarter, up from $23.7 in the first half of the financial year. “While the persistence of the covid crisis, especially in Europe, calls for careful forecasts for our business ahead, we see the rare earth market recovering very quickly,” said Lynas, the world’s largest rare earths producer outside China.
Freight demand has spiked during the pandemic, while the blockage of the Suez Canal in March delayed a shipment to April.
Lynas’ output of 4,463 tonnes of rare earth oxide (REO) during the quarter was marginally lower than 4,465 tonnes from a year earlier.