International Mining August 2024 | Page 8

WORLD PROSPECTS

Newmont starts deploying Cat R2900 XE LHDs at Subika Underground

Newmont Corporation ’ s Africa Business unit has deployed the Cat ® diesel-electric R2900 XE loader at Subika Underground mine in Ahafo South . The mining equipment , the first of its kind to be used in Africa , marks a significant milestone in Newmont ’ s commitment to reduce its global environmental footprint , in pursuant of the company ’ s ambitious goal of zero carbon emissions by 2050 .

Newmont has committed to purchasing nine of the R2900 XE loaders for Subika Underground , between now and 2026 , as it phases out the current fleet of loaders at the mine site .

“ The new hybrid loader combines the power of diesel with the efficiency of electric technology to deliver a 31 % improvement in fuel efficiency , translating into significant reductions in heat generation underground , fewer emissions , and a healthier working environment ,” said Dave Thornton , the Managing Director for Newmont ’ s business unit in Africa .

In 2021 , Newmont entered into a US $ 100 million strategic alliance with Caterpillar Inc ., to build a comprehensive mining system which encompasses autonomous haulage fleets and other technologies for both open pit and underground operations .

The deployment of the Caterpillar R2900 XE

loader in Ghana is part of this program , Newmont says representing a paradigm shift in the mining industry towards accelerating carbon emission reduction . https :// newmont . com

Serabi Gold looks to repeat ore sorting success with COMEX system at Coringa

Serabi Gold is planning for the start-up a second sensor-based sorting solution from COMEX as it looks to commence operations at its Coringa project , in Brazil . The company confirmed in its June quarter results that construction of the classification plant was well underway at Coringa , with the crusher expected to be operational in August and the ore sorter remaining on track to being operational by the start of the December quarter .

A spokesperson for Serabi explained that the ore sorter being used is a COMEX OCXR-1000 model . This sorting unit is manufactured to sort a feed fraction + 15 mm / -45 mm , with a maximum volume of 30-40 t / h . The stated maximum rejection rate is approximately 35 % and it operates at a maximum belt speed of 2.7 m / s .

The COMEX OCXR-1000 is equipped for both X-

ray sorting and colour sorting , with the latter using a 4K RGB camera . The whole unit at Coringa is within a single 13,500 x 3,500 x 2,900 mm ( length / width / height ) size envelope .

In a June corporate presentation , Serabi Gold said it is using ore sorters to remove waste and pre-concentrate run of mine material , as well as to liberate plant capacity . It noted the Coringa ore was highly amenable to ore sorting , with the company having carried out geological and metallurgical reviews and “ pre-tested ” its use at its Palito Complex , some 200 km from Coringa .

Since 2020 , Palito has fed 40,891 t of material at 1.7 g / t Au through the same ore sorting system . This has generated 4,899 t of product at 8.8 g / t Au , with 35,992 t at 0.7 g / t Au rejected .

Coringa is viewed as a low-risk , low-cost operation , being a “ carbon copy ” of Palito , according to Serabi Gold . Palito was set to produce 38,000-40,000 oz of gold in 2024 from an operation made up of an underground selective open stoping mine , a 600 t / d conventional flotation , carbon-in-pulp , ore sorting operation . Coringa , meanwhile , is set to use a classification plant made up of a crusher and ore sorter to produce 38,000 oz / y of gold through an integrated flowsheet still in development . www . serabigold . com

Conveyor leader ZGCMC cooperates with Huawei

On July 16 , China ’ s Sichuan Zigong Conveying Machine Group Co Ltd ( ZGCMC ), also known as Yunji Group , and Huawei Technologies Co Ltd , signed a comprehensive cooperation agreement in Shenzhen . Relying on the advantages of ZGCMC in the mining and bulk transportation industries , as well as Huawei ’ s technical capabilities in cloud computing , big data , artificial intelligence , digital solutions , etc , the partners “ will carry out all-round in-depth cooperation in the joint design of digital intelligence integrated solutions , global ecological cooperation , largescale model auxiliary development , talent training and technical support .”

They will also actively create demonstration projects combining artificial intelligence ( AI ) with traditional industries to jointly promote the high-quality development of related industries . The two sides will carry out joint innovation based on the Pangu model to achieve business innovation and growth driven by new technologies , enrich the ecosystem , and jointly create more commercial and social value .

ZGCMC is one of the leading companies in the design , manufacture , installation and maintenance of bulk material conveying machinery in China and is a leader in mining conveyors both surface and underground . Since its establishment in 2003 , the company says it has been committed to providing reliable and stable bulk material conveying system solutions for global customers , and building a perfect bulk material conveying intelligent equipment manufacturing system and product chain . It has also set up Yunji ( Tangshan ) Equipment Co Ltd , building intelligent conveyor production projects , through digital twin technology .

ZGCMC says the application of green

intelligent conveyor projects helps to optimise equipment operation efficiency and reduce costs , as well as improving product quality , making energy savings and reducing emissions . It also increases resource optimisation , promotes environmental sustainable development , “ and brings comprehensive economic benefits and social value to enterprises and society .” www . china-pipeconveyor . com

6 International Mining | AUGUST 2024