Ball Charge Loading - Impact on Specific Power Consumption and ...

research concludes that lowering the ball mill filling percentage negatively affects mill sizing and increases ... Today there are over 350 ball mills installed in the USA yet there is still a deficiency in cement produced. To meet ... methods of calculating the net mill power draw for an industrial mill. ..... of Nominal Motor Power.

Get Price

Calculation of the power draw of dry multi-compartment ball mills

May 6, 2004 ... Key words: power draw, cement, dry grinding, ball mill ... Where gross power is the power input to the motor, no-load power is the power.

Get Price

Cement Process Lecture(Lao Cement) - The Energy Conservation ...

Precipitator. Raw mill crusher. SP & calciner. Rotary kiln. Cement silo. Shipping pier. -eye View of Japanese Cement Factory .... 2)Replacement of ball or tube mill by vertical roller ... power of fan motor. ... Calc Equation of Elec Power Loss :.

Get Price

CEMENT TECHNOLOGY - KHD Humboldt Wedag

capacity increase feasible. In 2002 ... circuit ball mills with a capacity of 110tph ... Ball mill. Size dia 4.4 x 13.0m. Motor. 1 x 3500kW. 5. Ball mill separator Type.

Get Price

Interface for Drives in Cement Plants - ABB

systems for wound rotor motors and frequency converter drives. Improvements in ... cement industry. ... numerous GMDs for ball mills and SAG mills have been installed in the .... process power needs to be calculated based on design process.

Get Price

Updates on geared vs gearless drive solutions for grinding mills

Efficiency in terms of overall electrical power consumed vs mechanical ... In particular, torque pulsations between the twin motors have been overcome using ... method of driving SAG mills, Ball mills and other rotating elements. Several ... For the same drive a calculation in accordance with .... require more concrete. Refer to...

Get Price

Ring gear drives huge grinding mill | Mechanical Drives content from ...

Mar 1, 2000 ... Following the SAG mill will be two 9,000-hp ball mills, each one 20-ft in .... Ring-motor drives were first used in cement industry mills and later in...

Get Price

EMZ high-voltage motors & drive systems

voltage motors and large drives to you with this catalogue. EMZ stand for products ... cement, chemicals, paper, steel and plant engineering. With our qualified ... Design and Calculation .... tia, such as mills and big fans or where the main power supply is ... 4,000 kW ball-mill drive ASL 710-06 in a cement mill. 02 |Modular...

Get Price

The Ball Mill Driving Device Fault and the Main Bearing ... - IAES

Mar 4, 2013 ... Keywords: ball mill driving system, power of ball mill, the motor characteristics, ... simple with high repeatability and it is widely used in cement, elecric power, metallurgy ... power of ball mill can be calculated as bellow:.

Get Price

TECHNICAL SPECIFICATIONS - CDM

The existing Ball mill system is envisaged to be used in combination with Roller Press and VSK ... Battery limits: - From cement mill hoppers to product discharge airslide, which feeds ... Capacity. TPH. : 325. Material being conveyed. : Clinker / Gypsum. 531 MS1 ... Drive motor, hollow shaft gearbox, hydraulic input couplings,.

Get Price

Cement Mill Notebook - Scribd

May 28, 2012 ... 4.4.1 Grinding Ball Charge in Mills 4.4.2 Mill Charging 4.4.3 Total Grinding ... 8.1 Calculation of Cement Mill Power Consumption 8.2 Calculation of the ..... 9.0 t/h] Mill power input(q m) = 4416 kW = 6000 HP Motor power input...

Get Price

Wound Rotor Induction Motor Savings - TMEiC

In the cement and mining industries, high horsepower WRIMs are used on large grinding mills, where they have the ... Also, by using the drive to increase the power taken off the rotor, the motor speed can be reduced. ... Calculations for a 5,000 hp WRIM running at 90% full speed show that the recovered energy is 360 kW...

Get Price

CEMENT GRINDING OPTIMISATION - zenith Endress+Hauser

To optimise cement grinding, standard Bond grinding calculations can be used as well as modelling and ... The established technique for determining power requirements for ball mills is the Bond ... is mill specific motor output power (kWh/t),.

Get Price

IMPROVED CEMENT QUALITY AND GRINDING EFFICIENCY BY ...

Gleb Gennadievich Mejeoumov, B.S., Ivanovo State Power University, Russia;. M.S., Ivanovo ... consisting of a tube ball mill and a high efficiency separator was introduced through the ... The grinding matrix was calculated using the ...... justified by the fact that a considerable amount of energy supplied by the mill's motor is.

Get Price

STIRRED MILLS POWER MODELLING - zenith

Such high probabilities do not exist in the conventional ball mills as they use ... spread in other fine powder industries such as pigment, paint, cement, industrial .... development, a 3000 litre and 1.1 MW motor power unit was designed and...

Get Price

Download Cement Technologies Booklet - Asia-Pacific Partnership ...

energy efficient technologies generally used in the world's cement industry. .... fan and optimize power consumption of bag house fan ············· 27 ... Interlock apron conveyor to crusher motor to ensure ...... which hit raw materials as well as between grinding ball and mill lining. .... Bond's formula with the new feed size fixed.

Get Price

How to Calculate Load Torque & Motor Power - bulk-online Forums

Any one can help me to calculate Load Torque and Power Motor for gear ... this tag 471 times, System engineering, Plant System Engineering.

Get Price

SYNCHRONOUS MOTORS - Weg

supply with reactive power, synchronous motors are normally used for such purpose. ... Large ball mills for iron mines, cement plants and compressors are few...

Get Price

Wound Rotor - TECO-Westinghouse Motor Company

Wound rotor motors are an extremely versatile breed of induction motors. ... Available from 100 hp up to 10,000 hp; Brushes selected that provide high performance under ... Ball Mills; Shredders; Cement Mills; Pumps - get varied speed...

Get Price

Autogenous mills, semi-autogenous mills and ball mills for wet ...

x Dry grinding ball mills, x Air separators, ... ores, cement clinker, coal and other materials. Polysius has ... 3.8. 5.7 – 7.6. 950 – 1350 ...small diameter ball mills. 4. *Motor power at 35% ball charge .... hensive calculation know-how. Polysius...

Get Price

Cement Industry Solutions - Baldor

When calculating monetary loss from a cement ... Cement mill ... on our motor product line to higher AGMA ratings that exceed those of our gearing competition, and bearings with .... Comparable mounting dimensions with ball bearings.

Get Price

How to Spec a Mill Gear - February 2014 Power Transmission ...

cant calculations on the part of the mill builder. These include ... Ball mills are smaller still and use a ..... Figure 6 Motor power as function of input speed for standard bearing selections. Figure 7 ..... co-wrote two papers for IEEE cement industry.

Get Price

Chapter -12 Cement Industry

Jan 2, 2009 ... The capacity utilization of cement plants in India is about 85%. ... Ball mills have been generally used for grinding in cement plants in India...

Get Price

Sliding shoe bearing technology solutions to transform the mill ...

With the large-scale, large-diameter cement grinding mill equipment more than ... With the ball sliding shoe temperature, the viscosity of the lubricant to reduce the ... purpose to reduce the use of motor power , saving energy , calculated friction...

Get Price

A Few Words About Selecting AC Induction Motors for Cement Plant ...

Jun 18, 2014 ... To select AC induction motors for any application, the speed vs. torque ... Motors for Cement Plant Applications (on photo:3,500 kW ball-mill drive ... The Hz rating is determined by the power system available at the site. .... Free MS Excel calculation spreadsheets, electrical software and engineering guides.

Get Price

Process Diagonistics Studies for Cement Mill Optimization - Holtec

Ball mills are predominantly used machines for grinding in the cement industry. .... the chambers measured to calculate the ball charge, % filling and estimate the power .... production is obtained from a ball mill when the mill motor power is at a...

Get Price

Reduce Energy Consumption: Cement Production | Control ...

Aug 25, 2011 ... Metering, power quality, load shedding, motor management, power factor, ... can help identify power system anomalies and calculations like the cost of a ... for cement, and for starting and running multiple roller mills, ball mills,...

Get Price

Cement mill - Wikipedia, the free encyclopedia

Most cement is currently ground in ball mills and also vertical roller mills which are ... 5 Roller mills; 6 High-pressure roll presses; 7 Capacity of cement mills...

Get Price

Kaiser Cement & Gypsum Corp. v. Allis-Chalmers Mfg. Co ... - Justia

The specifications for a 2,500 h.p. and a 1,000 h.p. ball mill auto synchronous fn. ... As these motors were to operate the automated plant, their reliability was a crucial factor. ... The letter indicates the complications involved in rating motors for ... and highly technical mathematical calculations, Kaiser's expert, Dr. Lee Kilgore,...

Get Price

Operational Experience from the United States' First - Portland ...

FIRST VERTICAL ROLLER MILL FOR CEMENT GRINDING. By: Mark Simmons ... several benefits compared to the ball mill in regards to operating costs and flexibility. However, .... take only 50% of the installed motor power as heat. The end...

Get Price

Full Text - RS Publication

Design and Optimization of Ball Mill for Clinker Grinding in Cement Plant ... We proposemore precise empirical equation for modified HGI relating ... Index, easier is the material grindability and requires less power for grinding ..... of the material being ground which conforms to mill motor output power of an 8 ft diameter wet.

Get Price

Best Practices adopted by UltraTech Cement Limited

instead of Ball Mills, looking to energy efficiency. 2. Selected High ... Adopted intermediate voltage of 690V for motor rating between 200-1000KW to reduce rated current and .... ➢Payback time calculated as 0.1 months. Activities: Benefits:...

Get Price