SCREENING
A JOEST SWZ 3000 x 8400 Double Deck Vibrating Screen recently delivered to a customer
screens for the CHPP at Ironbark No . 1 coal mine which is an underground longwall mine 30 km north-east of Moranbah ; with another significant customer being Kestrel Coal Resources for the CHPP at its longwall metcoal mine located 40 km north of Emerald in Queensland ' s Bowen Basin .
Aury emphasises its strong R & D and engineering capabilities . “ Our engineering team is made of professionals with rich experiences in the mining vibrating equipment field . For each new application , we always perform FEA analysis in the screen design process to make sure the product structure is optimised . The screens are also engineered to fit customer ’ s existing plant layout .”
Its manufacturing facilities are fully equipped for us to conduct the entire process in-house : steel cutting & preparation , fabrication , welding , surface preparation , precision machining , assembly , testing , etc .
Aury screens it says have been designed to be exceptionally structurally sound , and extensively tested and tuned to eliminate stress induced cracking . Side plates are weldless and assembled using Huck bolts to ensure minimal stress on the structure . Exciter beams are box beam construction designed using FEA software and design tested using strain gauges to ensure trouble free operation over many years . Exciter beams are bolted using high tensile bolts and locking nuts . Heavy duty bearings by internationally recognised brands are used on the exciter for extended service life .
Exciter castings are machined and inspected in-house on high precision CNC machining centres . Almost all other exciter components are manufactured and machined in house to exacting standards . All exciters are test run for 24 hours while bearing temperatures are constantly monitored to ensure reliable long operational life . All fabricated steelwork is constructed from high grade and quality certified steel materials .
Aury screen cross beams feature innovative
and proven designs , consisting of tubular steel beams with full penetration welded flanges . Deck support fixing is via a cast steel saddle , which is machined and then Huck bolted to precisely and solidly mate to the cross beam . All exciter and cross beams are heat treated to eliminate stresses induced by welding .
Aury also recently releasd its new screening condition monitoring system ( CMS ), which it says offers real-time monitoring of various aspects of production units , from equipment disrepair to fault repair , intelligent diagnosis , and timely repair . The CMS system employs sensors on critical components like vibrating screen exciters , transmission shafts , and screen bodies to monitor parameters such as amplitude , running trajectory , phase , material load balance , and exciter bearings . The system provides analytical tools to diagnose bearing and gear faults and predict the service life of the exciter .
Users can access real-time equipment operation and status through a mobile app , which includes vibrating screen fault prediction and diagnosis . The system achieves a unified production equipment status monitoring platform and offers intelligent early warning and predictive maintenance .
By detecting early failures and enabling predictive maintenance , the system lowers
AKW ’ s new stand out washing drum
Washing often goes hand in hand with screening in flowsheets , and AKW Equipment + Process Design says it has capitalised on his successful experience in the field of clay processing , to design and develop a washing drum that delivers outstanding performance . Featuring a unique design and a specific sequence of lifting and agitating bars , the system has shown its ability to break up and loosen the most difficult clay types , to ensure a perfect wash and clean particles at the output . Available in different dimensions ( DxL from 1.25 x 3.75 m up to 3.5 x 10.5 m ), the system is
maintenance expenses and improves equipment availability . It facilitates the early detection of faults in high-temperature , flammable , and explosive environments , ensuring personnel safety and efficiency .
Aury Australia is part of the Chinese screening leader Aury ( Tianjin ) Industry Group Co Ltd which has a strong position in the Chinese coal industry , for which the solution was initially developed . Aury states : “ In the era of global smart coal preparation and green coal technologies , Aury is taking a significant step with its global coal customers .”
Vibramech ships record units to Kenmare
Vibramech says it is southern Africa ’ s leading OEM for vibrating equipment , and it has certainly backed this up recently by shipping two 35 t screens which are the largest ever horizontal vibrating screens produced in its 47-year history . These have been shipped simultaneously with its largest ever pan feeders . The statistics are impressive - the screen deck size is W4,270 mm x L9,760 mm with the pan feeder outer measurements coming in at L8,380 mm x W4,030 mm . As with all Vibramech screens they were fully custom engineered .
These record units are for the same customer . The OEM told IM that the single deck screens will be deployed for mineral sands processing – specifically at Kenmare Resources ’ Moma mine in Mozambique which produces ilmenite , rutile and zircon . Kenmare has stated that it is moving its largest Wet Concentrator Plant ( WCP ) A to its new Nataka mining zone – where new larger dredges will mine similar grades as before but at higher
With the addition of a PU made trommel screen directly at the output of the AKA-DRUM , a first screening stage can be performed
designed for maximum flexibility as it offers multiple running modes based on solid concentration levels .
With the addition of a PU made trommel screen directly at the output of the AKA-DRUM , a first screening stage can be performed , ensuring that the material is ready for the next step . Typical screen mesh apertures of the trommel screen can range from 16 to 80 mm .
Recently , this solution has shown to be successful in the field of construction , demolition and excavation ( CD & E ) wastes treatment , allowing to feed directly the washing plant with very clayish input material ranging in size from 0 up to 180 mm .
38 International Mining | OCTOBER 2024