10,000 tpd gold plant wsag ball mills, gyratory cone crushers, rock breakers more, unused metso 36 x 23 ag mill w1500 kw motor and 22 x 41 regrind ball mill 13,405 hp total power, unused metso mp1000 cone crusher, unused flsmidth 40 x 25 gearless sag mill, and 26 x 406 ball.
Oct 22, 2016 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 motors are preferred, but in some cases wound rotor motors may be used. Motor speeds will vary from 225 rpm to 450 rpm.
Jun 19, 2015 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 following shows how the size or select the
motor power required to drive cement ball mill. The motor power draw required to turn a mill from rest to the operating speed includes the energy required for the initial starting torque and mechanical arrangements to rotate the mill it is generally accepted that practical mill power pm is a function of mill capacity and diameter, iE,p m mill constant mill diameter n where n
the desired motor power and drive rating, the maximum design mill speed, and the maximum design ball charge volume (Barratt, 1989). For single pinion and dual pinion drives, with 21 MW now a distinct possibility, the probability of pinion changes to a higher mill speed should always be considered when set-
2015619The 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 following shows how the size or select the matching mill required to draw this power is calculated from known tables the old fashion way. Get Price
Feb 01, 2005 Ball mill drive motor choices for presentation at the drive 1 a 5000 hp 1200 rpm wound rotor motor with liquid rheostat and power factor the mill used for this comparison is a 44meter diameter by 136 meter long ball mill with a 5000 hp drive motor it is designed for approximately 90 per hour
Aug 16, 2021 According to the motor power, synchronous motor drive and asynchronous motor drive are divided into single drive and double drive. For the single drive mill, the mill arrangement type is divided into left and right side (facing the feed side in the direction of material flow, the main motor on the left side of the cylinder is left side mill ...
May 02, 2018 An inching drive is used as an auxiliary system to the main drive for a large machine such as a ball mill, industrial kiln, conveyor, or elevator. Its purpose is to turn the equipment at a speed slower than the normal operating speed typically 1 to 2 rpm, although fractional rpms are also common and to do so at high torque typically 120 percent of the
Gearless mill drive system (GMD) 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 ...
Figure 7 ABB synchronous motor on Ball Mill 1 The drive requirements for the Copper Mountain mills are as follows Rated power 2 x 6340 kW (2 x 8500 hp) SAG mill rated motor speed 204 rpm, max. motor speed 214 rpm Ball mill rated motor speed 195 rpm, max. motor speed 209 .
In operation, the hollow shaft in the center of the ball mill drives the grinding body to rotate under the drive of the power system. 2. Edge Drive Ball Mill The motor drives the gears at the edge of the cylinder through the reducer to drive the cylinder movement. (6) Types on the Basis of Process Characteristics. 1.
is the actual power of the main drive motor or 2 x main drive motor for dual pinion drives. The power computed above is considered P inch N o_inch P mill_motor N o_mill. Source IEEE Association Event Installation Inspection Relining Number of starts 25 10 50 Frequency per year 1 52 1 Number of years 1 25 25
Power Factor (Cos ) 0.61 0.49 0.56 0.55 0.62 The load survey conducted on the ball mill shows that the maximum loading on ball mill motor is 43%. The load variation recorded during normal operation of ball mill motor is 6.10 kW to 9.71 kW, while the rated capacity of motor is 22.4 kW. The load survey during single ball mill operation is shown ...
Circulation pump drive Customer power plant Vertical medium voltage motor 630kW Delivery of large 500kW and 630kW ring electric motors for 6000V system. Application ball mill drive Ball mill slip ring motor 630kW Reference project of complete turnkey high
200 HP (150 kW) Synchronous Motor with starter, 180 RPM. Synchronous motor and starter used to power a 7 x 10 ft Marcy ball mill Motor - 200 HP (150 kW) - 180 RPM - 460 V Starter - Weaver Electric Custom Control Synchronous Starter - HP 300-200 - Voltage 575-460 - Ex...
The subject of this paper is a synchronous drive of grinding ball mills 4 MW, 150 rpm, 6 kV, 50 Hz on the base of PWM CSI. The system is installed at the
May 02, 2018 An inching drive is used as an auxiliary system to the main drive for a large machine such as a ball mill, industrial kiln, conveyor, or elevator. Its purpose is to turn the equipment at a speed slower than the normal operating speed typically 1 to 2 rpm, although fractional rpms are also common and to do so at high torque typically ...
For the ball mill of A type synchronous motor, the transmission efficiency can be improved by 15% 20%, and the comprehensive power saving rate is about 17-25%, after canceling large gear and pinion. For the B-type ball mill with asynchronous motor reducer, the comprehensive power saving rate is up to 40%. Chat with us.
2 GEARLESS MILL DES The gearless mill drive eliminates ring-gear, 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
The motor used to drive the blower, coal mill, rolling mill and winch should indicate the purpose and technical requirements when ordering, and adopt special design to ensure reliable operation. Center height range H355 1000mm. Power range 220kW 10000kW. Number of
Ball Mill Miner Motor, Water Pump Motor, Belt Machine Motor manufacturer / supplier in China, offering Permanent Magnet Synchronous Direct Drive Frequency Conversion AC Motor for Ball Mill, 3kw Low Speed Permanent Magnet Generator for Small Wind Turbine, Micro Hydro Power Water Turbine Permanent Magnet Generator (1kw-3000kw) 60Hz and so on.
As the horsepower drive ratings required have increased to several thousand horsepower, and as advances in technologies in terms of the use and application of adjustable frequency power conversion equipment have occurred, the basis for driving the ball mill directly by the driving motor with no intervening gear has been created.
The motor power draw required to turn a mill from rest to the operating speed includes the energy required for the initial starting torque and mechanical arrangements to rotate the mill. It is generally accepted that practical mill power (PM ) is a function of mill capacity and diameter, i.e.,P M Mill Constant * (Mill Diameter ) n
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 ...
the auxiliary drive and the main motor automatically disengage the auxiliary drive when the motor is started. A break can be supplied as option on request. It allows to lock your ball mill in position during maintenance. MAAG CPU Auxiliary Drive Oil supply unit Main motor Low speed coupling ZCF High speed coupling ZEXF Ball mill
way around. This table shows the range of FLSmidth ball mills for cement grinding, with capacities up to 10 000 kW in an array of mill diameters and lengths. FLSmidth MAAG LGDX side drives are supplied as standard but other drive types are available on request. Specifi cations Mill Motor * Size (D x L)(m) Speed (rpm) Installed motor Power (kW)
Mar 09, 2016 A ball mill is a device to grinder any media. I have an issue to select a proper motor. I see some challenges here 1-The jar will contain metal balls which will be a heavy load to rotate. (I think 1/3 HP at least would be needed) 2
It will supply the power necessary to drive the motor by resistance variation. Designed for controlled starting and speed control of large slipring motors in demanding applications, the EPM liquir rotor starters ensure a smooth progressive acceleration of installations such as ... (control of the slip for the ball mills for example). Why using ...
Cement plant motor manufacturing is one of our main product focuses. Cement mills, fans, shredders - in the production of cement, particularly large and efficient motors are required for the most diverse processes. MENZEL offers individual motor solutions for all applications in the cement industry up to 13.8 kV and 25 MW.
Mar 30, 2016 I want to use it to make a tumbler (a.k.a. rock polisher or as the pryo guys say ball mill) like the light weight ones sold by Harbor Freight. I will have to do the math for the rpm of the container when I get the motor situation sorted out and the frame built, belt bought and the container made.
Aug 25, 2004 I also remember a very detailed, but fascinating, mathematical analysis of the ball ore movement thru the mill and its impact on the drive motor and power transmission train (motor, gearbox, drive shaft). It was presented in a monthly magazine related to the materials handling industry.
The motor is usually fitted with a variable speed drive (VSD) to control the rpm of the ball mill. Gearbox used for speed reduction from the motor to the ball mill. Balls usually manufactured from manganese alloy steel , but the material depends upon for what material the mill will grind ( chrome steel alloy and rubber also available).
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 ...
with example torque in conveyor motor power calculation required energy calculation by hot rolling of tubes and of april 21st, 2018 - required energy calculation by hot rolling of tubes and of the main drive motors power for a stretch reducing mill macrea dorian iprolam sa