COMMINUTION AND CRUSHING
crusher , the unit crushes material in ore applications . Superior acquired the original design in its 2015 acquisition of Canadian-based Clemro Western . After collecting customer feedback , Superior engineers redesigned the unit and added a number of new features .
According to the manufacturer , the Liberty crusher is engineered with an aggressive nip angle that maintains the machine ’ s ability to consistently grab and process material at a high level of efficiency . In addition , a set of integrated lifting points are designed into the jaw dies for safe replacement or installation .
Other unique features include pitman toe protection . This replaceable component offers an insurance policy if wear occurs in the pitman fabrication . Furthermore , the unit ’ s motor is frame-mounted , allowing a smaller footprint and freeing up deck space for maintenance . More maintenance time is freed with the addition of a hydraulic tensioning system and hydraulic wedge adjustment . Superior ’ s Liberty Jaw Crushers are manufactured in feed openings of 18 ” by 36 ” to 36 ” by 48 ”.
At CONEXPO-CON / AGG in March , Sandvik is launching its CS550 cone crusher – described as “ the second-stage super producer ,” adding “ optimising the secondary step in the crushing process means more money for Sandvik customers . The latest , smartest , high-precision cone crusher for second stage crushing from Sandvik is more than the next generation of crushers . It is an intelligent , uncompromising piece of power built to produce more .” Also there will be the Sandvik QJ341 + mobile jaw crusher , a new addition to the proven Sandvik QJ341 jaw crusher range . This model comes with the added benefit of a double deck pre-screen as standard . “ The pre-screen enables the removal of fines to increase throughput , resulting in greater efficiency , less wear on the crusher and ultimately higher productivity . This will be particularly effective in quarrying applications with a high proportion of fines in the feed material .”
Finally , the Sandvik UI310 + is an electrically driven wheeled crushing unit which offers a versatile and highly efficient primary crushing solution . “ With the all new patented and highly modularised Sandvik CI512 Prisec™ crusher it offers the flexibility to configure one base crusher into either a primary or a secondary configuration … it features a pre-screen to maximise efficiency and is built with many features for ease of operation and low operating costs .”
Complete circuit orders – Metso at Tibet Julong
Metso is supplying key minerals processing equipment to Tibet Julong Copper for one of the largest greenfield copper projects in the world . The full delivery of minerals processing equipment to the Qulong copper mine covers engineering , a full scope of advanced minerals processing equipment and advanced process control system including six crushers , eight SAG grinding mills , eight ball mills and eight stirred mills , four vertical plate pressure filters and 16 vibrating screens , as well as related services like installation , start-up , commissioning and technical direction .
The Qulong copper mine , owned and operated by Tibet Julong Copper , has a proven copper metal reserve of more than 7 Mt , Metso reports . The in-the-pit mining and concentrator operations will be located on the Qinghai-Tibet Plateau . The mine is being built in three phases between 2016 and 2018 . After its completion , it will be China ’ s largest and most modern copper mine with an annual design production capacity of 560,000 t of copper and a daily processing capacity of 300,000 t of ore . The mine is estimated to be in production in 2018 .
The latest installation of an FLSmidth 1600 x 2400 TSU class primary crusher ( 63 " x 94 " in old parlance ) has recently been completed at ArcelorMittal ’ s Pena Colorada iron ore mine in Mexico . This crusher , the 750 kW Ultra Duty version , is the strongest machine in its size class
FLSmidth primary gyratory market growth
The successful acceptance and integration of FLSmidth ’ s ‘ Top Service ’ gyratory crusher by the world mining and aggregate markets continues to grow , says the company , with the latest installations and commissioning taking place with this flagship of the FLSmidth crushing range . Since 2006 , FLSmidth has sold over 60 gyratory crushers and almost half of these have been of the Top Service design , a confirmation as to the overall acceptance this new concept machine now enjoys in the global theatre .
“ The Top Service Machine allows the end user to completely disassemble the crusher from the top , even all the way down to the hydraulic piston at the very bottom of the machine . This has negated the requirement for personnel to work under the crusher . This in turn contributes to vastly higher safety levels due to exposure and also improved maintenance times by eliminating things such as working in confined spaces , being exposed to noxious gases or harmful particulates and falling objects from the work area above .”
The Top Service Crusher range is designed to specifically address the ever increasing need to
International Mining | MARCH 2017