Ball Mill Design/Power Calculation
A motor with around 1400 Horse Power is calculated needed for the designed task. Now we much select a Ball Mill that will draw this power. The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution. The …
Ball mill: Drive solutions for small and large torques
Primary drive with helical gear unit or bevel-helical gear unit design; Output and drive coupling with covers; Auxiliary drive with disengaged coupling on the primary motor's …
GE Motor Technology to Drive Mexico's Largest Ball Mill …
Grupo Mexico will use GE's advanced synchronous motor technology to add 84 megawatts (MW) of power at six Buenavista ball mills. Quadramatic motors run at fixed speeds with minimum system losses to promote high efficiency, thus lowering the mine's energy requirements. GE announced the new order with Minera Mexico---a …
VFD Ball Mill Solutions | Benshaw Inc.
Working with a long time customer and local partner in the motor controls industry, Benshaw was able to solve this problem by applying a 480VAC 700HP AC variable frequency drive. The Benshaw VFD powers the 4160 volt – 3500HP synchronous ball mill motor during positioning to smoothly rotate the ball mill and bring it to the …
Ball mill: Drive solutions for small and large torques
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. SEW-EURODRIVE does not just provide industrial gear units, we provide the complete drive package ...
Indexable Ball End Mills & Inserts
Our indexable ball end mills come in two types: steel and carbide.The premium indexable alloy steel end mills have excellent strength, precise H6 tolerance shanks, and are nickel plated to prevent corrosion and improve lubricity.Our indexable carbide ball end mills have the same rigidity as solid carbide end mills, so they are very stable in the cut, and …
Ball Mill
Quantum Nanostructures (QDs): An Overview. D. Sumanth Kumar, ... H.M. Mahesh, in Synthesis of Inorganic Nanomaterials, 2018 3.6.1.1 Ball Milling. A ball mill is a type of grinder used to grind and blend bulk material into QDs/nanosize using different sized balls. The working principle is simple; impact and attrition size reduction take place as the ball …
The Siemens 42ft gearless mill drive, still an …
The result is the design of a Gearless Mill Drive motor for a 42ft Grinding Mill providing up to 35MW of power. Evolution is still the main GMD design philosophy, but realistic and proven computer models help to look beyond experience, where testing is impossible. The Siemens 42ft gearless mill drive, still an evolutionary design approach?
Grinding mills in Canada
High-grade quality grinding mills are now in Canada. Explore our huge range of ball mills, SAG mills, roller mills, vertical mills, and miscellaneous grinding mills. 1-604-534-5313 ... 22″ X 36″ CAST IRON BATCH BALL MILL; ID: C1701. 2.5′ X 3′ DENVER BALL MILL, 10 HP; ID: C0866* 30″ X 42″ PATTERSON BATCH BALL MILLS;
Ball Mill
Transmission device: The ball mill is a heavy-duty, low-speed and constant-speed machine. Generally, the transmission device is divided into two forms: edge drive and center drive, including motor, reducer, drive shaft, edge drive gears and V-belts, etc. 4. Feeding and discharging device: The feeding and discharging device of the ball mill is ...
Inching drives – one way to improve mill safety
Ignoring mechanical losses in this drive train, the power transmission at each stage, defined as torque x speed, is constant. The typical mechanical inching drive motor speed is around 1500 to 1800 RPM while the mill inching speed is in the order of 0.1 to 0.15 RPM. Thus, the gear reduction ratio between the inching drive motor and the mill is ...
STEPPING FORWARD: USING VARIABLE SPEED …
after which everything is ready to drive the mill. Once the "variable speed solution" is chosen, an important decision to be made by the operator is left referring to the motor: whether to opt for a high speed or low speed solution. Gear driven mills can be motorized both with the high speed solution or the low speed solution.
Ball mill drive motor choices | IEEE Conference Publication
The time has come to re-think the approach to mill drive motors because of the growth in size of newer ball mills, the starting torque restrictions of some of the newer mill drive configurations, and the softness of some utility services. This paper looks at the serviceability and economics of five different mill motor options to meet these restraints. …
Custom Electric Ball Mill Motors | Louis Allis
Gearless mill drives
WEBTechnical and Commercial Benefits of Gearless Mill Drives for Grinding Applications. ABB's Gearless mill drive system is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and …
QdX4TM Mill Drive system
The QdX4TM Mill Drive was developed in close collaboration with both CMD and Ferry Capitain Engineering as a solution for the mining industry for large mill drives. The QdX4TM Mill Drive features internal torque splitting capability transmitting motor input power to the pinion shaft and equally dividing into two mill pinions. This ...
Inching Solutions | Benshaw Inc.
Using the Benshaw Low Voltage Drive for positioning a MV synchronous motor driven ball mill is another great solution. The Benshaw variable frequency drive powers the 4160v synchronous ball mill motor during positioning to smoothly rotate the ball mill, providing full torque at zero speed to start and rotate the mill during the …
Ball Mill Positioning
Synchronous Ball Mill Motor Ball mills are used in many industries to grind coarse ... The ability to operate a medium voltage motor with a 480VAC AC drive at very low speed for …
Ball Mill Drives
DIRECT CONNECTED Ball Mill DRIVE. When power exceeds 300 HP a direct connected drive is recommended. This drive is also applicable for lower power requirements if desired. Synchronous …
Concepts of Gearless Ball-Mill Drives
In the past the conventional 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. As the horsepower drive …
THE ENGINEERING AND PROCESS EFFECTS OF CHOOSING A MOTOR …
In daily practise, the operator can operate a mill with a variable speed drive at any speed the. grinding process may require, as long as: 1. The motor temperatures keep below the maximum values ...
BALL MILL DRIVE MOTOR CHOICES
The mill used for this comparison is a 4.4-meter diameter by 13.6 meter long ball mill with a 5000 HP drive motor. It is designed for approximately 90 s.ton per hour. This type two-compartment mill is a state- of-the-art shell supported cement finish mill. The torque and time requirements of the mill with the ball
1 x SAG Mill & Siemens Motor
Storage Location Various (Netherlands, Canada) Motor & Drive Details Mill Drive Motor Manufacturer Siemens Operating Frequency 50/60 Hz – TBD by new client * Enclosure Type TEFC ... Mill Details (2 x Ball Mills & 4 x GE Motors, Type of Mill Ball Mill Mill Dimensions 6,706 mm x 11,125 mm (22' x 36.5') (D x L) Mill Speed 12.44 RPM
Ball mill drive motor choices
First works analyzing grinding mill drives [1], [2] focused on the torque requirements, motor options (wound rotor induction motors, synchronous motors), and drive arrangements (center drive, one ...
Mill drives – INFINITY FOR CEMENT EQUIPMENT
The first finish ball mill driven by a wrap-around motor has been put into operation in 1969 in Le Havre, France. The cement output is rated at 200 MTPH and the motor rating is 8700 HP (metric HP), equal to 6400 kW at 15 RPM. The motor was manufactured by Brown, Boveri and Comp., Baden, Switzerland.
Used Ball Mills for sale in Canada | Machinio
4′ X 4′ EIMCO BALL MILL, 30 HP. used. Manufacturer: Eimco; Description 4′ x 4′ Eimco Ball Mill, 30 HP, 460 Volt, 1750 RPM Teco Motor. Equip yourself with the gold standard …
Electrical Aspects of the 8750 hp Gearless Ball-Mill Drive at …
The first large gearless ball-mill in North America has been successfully installed at the Mississauga, Ontario, plant of the St. Lawrence Cement Company. The motor rating is 8750 hp (6500 kW) at 14.5 r/min (4.84 Hz). The electrical aspects considered of interest are discussed in the paper.
Paper # 25
Figure 3 - The 24' x 39.5' ball mill Table 4, 5 and 6 include the technical data for the Copper Mountain ball mills. Table 4 - general ball mill data Specification Data Mill size 7.315 M [24 feet] diameter by 12.039 M [39.5 feet] long Mill type Wet grinding, overflow discharge Mill drive motor size 17,000 HP
What type of motor for a ball mill?
If you need a gearmotor, you`ll find wheelchair motors fairly cheap secondhand. I use a 24v jobbie with a worm drive gearbox (34:1) on a variable 0-15v dc 12 amp supply for various stuff (not ballmill). It will run from about 2v upwards and draws no more than 5 amp under heavy loading.
Used Ball Mills (mineral processing) for sale in Canada
Used Ball Mills (Mineral Processing) in Canada. Trusted Seller. 13′ X 21′ ALLIS CHALMERS BALL MILL, 2000 HP. used. Manufacturer: Allis-Chalmers; ... Description 9′ x 7′ Allis Chalmers Ball Mill, 400 HP WEG Motor & Direct Drive, 348 RPM, Bolt-on Heads. Equip yourself with the gold standard. Manufacture & Design Canadian Allis Chalmers ...
BALL MILL DRIVE MOTOR CHOICES
The mill used for this comparison is a 4.4-meter diameter by 13.6 meter long ball mill with a 5000 HP drive motor. It is designed for approximately 90 s.ton per hour. This type two …
