WhatsApp)
The following benefits are achieved when using gearless drives solutions compared to conventional drive systems (Sehl amp; Dirscherl, 2012): Reduced maintenance and minimized risk of downtime by eliminating electrical components,
The Gearless Drive avoids any contact between the rotating mill and the static parts of the motor. This enables a contin uous workflow without maintenance on the gears or the pinions. What used to be downtime is now productive time. Vibrationfree, lowweight, shortcircuit proof design with high stiffness.
A standard of reliability and efficiency for grinding. From Norway to Zambia, from Mongolia to Chile for over 30 years, mining operators all over the world have been counting on SIMINE Gearless mill drives. Their most important features include a small footprint and less weight than conventional drives. Today, functions like Frozen Charge Protection and the optional Frozen Charge Shaker further reduce downtimes and increase productivity.
Gearless drives also offer an energyefficiency advantage. a 29 MW drive for the 40foot SAG mill and two 22 MW drives for the 28foot ball mills. Get Price ABB in Motors and Generators Overview Technology Platform
Advantages Of Gearless Drives On Ball Mills Solutions. Advantages of gearless drives on ball mills solutions. fine grinding and some new silver extraction ideas mining apr 23 2008 the two fine grind vertical deswik mills will operate on separate and data collection and compact footprint are other advantages milling. More Details
TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL DRIVES FOR GRINDING APPLICATIONS M rens ABB Switzerland J Gonser ABB Switzerland Abstract Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries The paper describes numerous GMDs for ball mills and SAG mills have been . Get Price
timetaking grinding out of the ball mill. Ball mills with Energy savings typically up to 750,000 USD per annum for a 20 MW SAG mill considering a power supply price of 11 US Cents per kWh. Erection and commissioning works on site are reduced by using a completely installed, wired
Overduty cycle Avoids unexpected downtime if the mill gets overloaded. Oscillation damping Detects and actively damps mechanical oscillations in the drive train, reducing additional fatigue on the mill components. Creeping Keeps the mill at very low speed avoiding frozen charge and
Ball Mills Gearless . advantages of gearless drives on ball mills MTM Crusher. Improved yields Mineral Processing. Ball mills installed downstream of SAG mills grind the ores to finenesses
Ball Mills Gearless . advantages of gearless drives on ball mills MTM Crusher. Improved yields Mineral Processing. Ball mills installed downstream of SAG mills grind the ores to finenesses Get Price Here !
The following benefits are achieved when using gearless drive solutions compared to Gearless Mill Drive (GMD) systems are characterized by having the motor Ball mill speed can be reduced during short maintenance measures, ... Get Price
Jun 11, 2003#0183;#32;Looking at economy of scale, new projects consider the use of big mill grinding circuits, where larger power gearless motor drives with cycloconverters in the range around 20 MW are being applied for semiautogenous (SAG) mills and recently, ball mills are also being considered.
2 GEARLESS MILL DES. The gearless mill drive eliminates ringgear, pinion, gearbox, coupling, motor shaft and motor bearings, used within a conventional mill drive system. By mounting the rotor poles directly onto the mill, the mill itself becomes the rotor of the gearless motor. Building a track record. ABB''s experience in optimizing gearless solutions for grinding applications extends over 50 years, making it
Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries. The paper describes the functionality and technical features of such drive systems as well as their advantages compared to other drive solutions. Due to the variable speed operation the grinding process can be optimized for
Concepts of Gearless BallMill Drives method of driving large ball mills included some form of speed reducing gear between the higher speed driving motor and the lower speed ball mill. Process developments in the mining and cement industries have increasingly tended toward the use of ever larger ball mills for grinding their products.
A standard of reliability and efficiency for grinding. From Norway to Zambia, from Mongolia to Chile for over 30 years, mining operators all over the world have been counting on SIMINE Gearless mill drives. Their most important features include a small footprint and less weight than conventional drives. Today, functions like Frozen Charge Protection and the optional Frozen Charge Shaker further reduce
Advantages of Gearless Motor Drives in Large Ore Grinding . Large capacity grinding mills are used for processing the ore. Using one large mill is more economical than using a number of smaller mills. The load transmitted by the gear trains will be very high, leading
SIMINE Gearless Mill Drives Siemens. Find out instantly how the mill and Gearless Drives are.. Power: 24,000 kW for a 40 ft SAG mill. Power: 16,400 kW for two 26 ft . The SIMINE Gearless mill drives pump system significantly enhances concentrator productivity by eliminating the reducer gear between motor and pump and all corresponding maintenance.
Mining mineral processing Each step of your way 5 Ore concentration When it comes to driving grinding performance to higher levels ABB offers a range of solutions. Gearless mill drives The gearless mill drives (GMD) for SAG ball and AG mills eliminate the typical mechanical components of the drive train (shaft gearbox pinion and ring . Get Price
Oct 29, 2019#0183;#32;Two 28 MW gearless mill drive systems (GMDS) are operating in the mines 12metre SAG mills and four MW GMDS are employed in 26 ball mills along with associated control systems. Gearless mill drives are the workhorses for grinding operations which are at the heart of any mine.
Maximum availability and productivity. Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations. ABBs GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This workhorse for grinding operations combines a robust, servicefriendly and fit for purpose design to provide
Gearless mill drives As was mentioned above, a gearless mill drive constitutes both an important part, but also one of the most critical elements of a concentrator or a cement plant. Their purpose is to ensure the continuous rotation of specific types of tumbling mills, more specifically autogenous grinding (AG) mills, semiautogenous grinding
Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries. The paper describes the functionality and technical features of such drive systems as well as their advantages compared to other drive solutions. Due to the variable speed operation the grinding process can be optimized for ores with varying grinding properties.
Furthermore, energy and cost savings due to optimized operation, high system efficiency and high system availability are shown. Gearless mill drives are a well established solution for grinding applications in the minerals and mining industries. The paper describes the functionality and technical features of such drive systems as well as their advantages compared to other drive solutions.
WhatsApp)