b) the simplified direct drive type; a more energy efficient solution either with Low Speed Synchronous Motors (LSSM) and most recently the highly reliable Low Speed Induction Motors [2]. Figure 3 shows a ball mill with a dual pinion drive 2x 6500 kW with low speed induction motors (LSIM). The dual pinion drives demand tight tolerances in the
According to ABB, the dual-pinion mill drive systems are the most operationally and mechanically friendly solutions available on the market today. Features include variable-speed operation, real-time frozen charge protection, a frozen charge remover function and controlled roll-back and positioning without additional drive, according to ABB.
drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Configured in a twin motor arrangement, the motors share load in the tandem mill. The Customer Need
The Outotec QdX4™ Mill Drive features internal torque splitting capability transmitting motor input power to the pinion shaft and equally dividing into two mill pinions. This type of torque splitting gear box technology has been in operation since the early 1960's. We have rearranged the drive architecture in order to apply high ...
Speed variation required is in the range of +/- 15% of synchronous motor speeds. VVVF drive packages from ABB and Siemens are also available for 2 x 10MW in low and high speed options. Dual hydraulic inching drives provide a much safer and convenient operation with the added advantage of locked charge detection.
ABB's contact called for delivery of four dual pinion low-speed mill drive systems for two semiautogenous (SAG) and two ball mills, each consisting of two synchronous motors, converter transformers and ACS6000 frequency converters including active rectifier units that allow the mill drives to achieve a power factor of 0.90 leading.
ABB's dual pinion mill drive systems provide real time frozen charge protection which is especially important for the operation of the ball mills. Also its dual pinion drives solutions provide the option of variable speed, which enables the end user to increase the availability of the complete production line.
Measuremens at a state of the art 2x5 MW dual pinion mill drive (English - pdf - Technical publication) Technical publication - Optimal trade-offs: Achieving energy efficiency and environmental compliance is not a problem thanks to advanced process control (English - pdf - Technical publication)
Innovative Gear Drive Solution for Grinding Mills. Cemtec and Siemens jointly developed a standard-equipment, economical solution to handle the power needed to drive a 10.4 x 6.1-m, 15-MW SAG mill and an 8.2 x 14-m 18-MW ball mill at this Russian gold mill site. Cemtec , an Austrian company, develops and executes projects for the mineral ...
Direct drive systems utilising low speed synchronous motor(s) High speed drives through gear reducers; Single or dual pinion drives (with load sharing technologies) Wrap around motors for highest power requirements . Established full line of main bearing technologies to best suit the application such as: Hydrodynamic trunnion supported sleeve ...
The complete drive system . Ball and grinding mills, kilns and dryers are often operated with open gears. Based on your application, available space and other individual parameters, our gear solutions power your equipment – getting the highest performance from your process.
Products for SIMINE Pinion mill drives. Siemens provides high-speed drives as well as low-speed drives. Our high-speed drive solutions provide operational flexibility and full modularity. The power ranges from 100 kW to 24 MW. Our low-speed drives reduce wear and help cut energy costs by up to 5%. Offered up to 24 MW, the variable speed of low ...
Falk Mill Products gears and pinions. Autogenous mills, semi-autogenous mills and ball mills for,, Gears & Pinion Shafts, Mill Kiln Spar Ashoka Machine Tools Corporation .Pinion Drive Sag Mill 1 COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS,, SAG mill, ball mill, ring gear, dual pinion,,Falk Mill Products gears and pinions The quality and tradition of Falk Mill …
SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed … Bearing type Partial Journal, 120 degree bronze insert Bearing size 2,950 mm diameter by how to align a ball mill pinion and girth gear – Grinding …
The clutch's primary role on the dual-pinion, direct-drive geared mill is to provide smooth starts during mill startup. When the mill is running, the clutch also serves as a torque "circuit breaker," reducing costly repairs and downtime by protecting the pinions and ring gear from potential damage caused by large pieces of grinding material.
single- or dual-motor configurations. In this type of application, the pinion is mounted on pillow blocks driven by a low-speed motor or a motor and en-closed gear drive. The gear is mounted on the mill using a flange bolted con-nection (see Figure 2 for one type of flange installation). ... p is pinion speed, rpm; dis operating pitch diameter ...
drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Confi gured in a twin motor arrangement, the motors share load in the tandem mill. The Customer Need
ABB recently completed commissioning of the low speed dual pinion mill drive and control systems at the newly reopened Copper Mountain super pit mine in British Columbia, Canada. The initial order was awarded in 2008. Engineering, delivery and commissioning of the complete drive systems was valued at more than $26 million.
We provide optimized mill drive solutions for all types of ring-geared mills: low and high speed, single and dual pinion, with and without a gearbox — all designed for reliable, long life and low maintenance operation.
Large dual pinion mills need coordinated operation between the two driving motors to maximize gear and mill life. Speed control is possible for wound rotor motors using TMEIC's Slip Power Recovery Drive (SPR). Instead of wasting power through a liquid rheostat or resistor bank, the SPR drive returns that power to the line.
dual motor grinding mill drive ... speed synchronous motor drive the ball mill, mill, Load Sharing of Dual Motor Grinding Mill Drives Cookies must be ... Preprint 13-050 - ceecthefuture Early attempts to provide load sharing on twin pinion drives used primitive ... ready for use on 2 X 10MW dual drive mills. ... gear drive grinding mill.
TITAN BALL MILLS. Based on the MPT TITAN™ design, the Mills are girth gear & dual pinion driven with self-aligned flanged motors, running on hydrodynamic oil lubricated bearings. The TITAN design enables you to run full process load & 40% Ball charge at 80% critical speed – Max grinding power for every shell size. Standard Mill Types Available:
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Our durable and resilient drive solutions ensure a reliable ball mill operation Drive packages from a single source: industrial gear units and segmented girth gears. Large girth gears are installed around the cylinder to rotate the horizontal ball mill cylinders. A pinion connects these directly to the industrial gear unit.
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The dual pinion mill drive is a variable speed technology which will effect low mechanical stress impact on the pinion and ring gear by realizing precise load sharing between the two motors of each mill. "ABB's mill solutions reduce energy consumption, reduce mechanical stress, improve the service life of equipment, and boost operational ...
ABB's state-of-the-art dual pinion mill drive systems are the most operation and mechanically-friendly solutions available on the market today. Features include variable-speed operation, real time frozen charge protection, the frozen charge remover function, controlled roll-back, and positioning without additional drive.