The new crusher which can be used in different types of applications provides large capacity with significant savings in CAPEX and operating costs.Get A Quote
The new crusher which can be used in different types of applications provides large capacity with significant savings in CAPEX and operating costs.
We are very excited about the nbspSUPERIOR MKIII 6275UG. nbspAs a direct response to the market demand weve designed a more compact primary gyratory crusher reducing CAPEX that is applicable to both underground and above ground applications for the mining industry.
8220We think that we have achieved our goal and upheld the superior standards we are known for says Jim Bathie VP Mining Crushers at Metso Outotec.8221
The crusher was born out of a need for a high capacity underground primary crusher that did not require a primary feeder scalper and the associated infrastructure therein. nbsp
2 days agonbsp018332Metso Outotec is launching an extension to its primary gyratory crusher range The SUPERIOR MKIII 6275UG. The new crusher which can be used in different types of applications provides large capacity with significant savings in CAPEX and operating costs.
Additional requirements for an underground crusher were the ability to transport the components down shafts with spacial restrictions assemble the crusher with minimal need for welding and hot works and the ability to feed the crusher from 360 degrees around the feed opening these were all met with the 6275UG MKIII.
The 6275UG crushers feed opening is 15 larger than in similar crushers while also reaching up to 30 more capacity than comparable crushers. Optimized production can be ensured with advanced automation.
Underground mining presents a unique set of challenges so careful planning pays off. Metso039s Eero Hamalainen examines the big decisions in taking primary jaw crushers underground.
Sub-surface mining sets unique requirements on equipment as well as on safety and maintenance issues excavating for and assembling a primary crushing plant underground is complicated and costly so what are the big decisions when starting an underground primary jaw crushing plant
Real estate in an underground mine is not cheap so the design of primary crushing plants faces more limitations underground than on the surface.
However the primary crushing and transportation of ore to the surface are often the determining factor that decides on the capacity of the mine.
The required capacity defines the size and type of crushing equipment and also the number of parallel crushers or plants required to meet the mine039s production rate. Most suppliers and EPCM providers have simulation and calculation tools for basic equipment and capacity selection.
In either case the top size of the material ends up typically in the range of 200 8211 350 mm which is good for belt conveyors and fits into most secondary crushers without causing process risks. To achieve this top size the crusher setting is in the range of 200 mm or below depending on the rock characteristics.
If a belt is not used in transporting the crushed ore out of the mine the other method of transporting ore from underground applications is via skip hoist. Depending on the size of the skip the ore being transported may need to be finer.
Picking debris out of the primary feed is always a challenge. If there is a belt after the crusher it makes sense to place a magnetic separator there to get rid of at least the magnetic parts of unwanted materials. This way it will not get transported to the next stage of comminution.
Underground mining methods mostly produce a feed that is finer than in a typical open-pit mine resulting in higher capacity through the plant. However surprises do happen so be prepared to handle oversize feed material when required.
Scalping is usually recommended before a jaw crusher whereas gyratory crushers can handle the excavated ore as such. This is because primary gyratories are not as sensitive to fines they are large steep and have a relatively short stroke compared to settings that allow fines to flow through more easily.
thyssenkrupps Mining Technologies business unit in Australia has been awarded the contract for supply of an underground gyratory crusher for Newmont Mining Services. The KB 54-67 gyratory crusher is to be installed as part of Newmonts Tanami gold mine Expansion 2 TE2 Project.
Komatsu Mining Corps bulk materials handling conveyors are utilized in some of the most productive underground mining applications worldwide. Learn about
Mining operations call upon us for solutions to tough problems. There isnt a segment thats harder on equipment than hard rock mining. . Underground Hoists motors gear boxes drills loaders shuttle cars and . From the primary crusher all the way through the mill to the tailings pond we know mineral processing equipment.
When it comes to hard rock applications mining operators rely primarily on Jaw and Gyratory crushers. While these are suitable and proven for such applications they require large installation heights.
Enter thyssenkrupps Eccentric Roll Crusher ERC. Launched earlier this year the compact and robust ERC is suitable for both surface and underground operations.
Demitri Kokoroyanis product manager minerals processing crushing and screening technology explains that the crusher is designed for easier operation with wet sticky material and very hard materials in excess of the conventional primary crushers.
The ERC combines the ability to process hard rock material with a low profile machine design resulting in less installation height and machine weight. High moment of inertia of roll and flywheels reduce power requirements and improves energy efficiency.
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