how much hp motor required for tonn ball mill

Selecting AC induction motors for cement plant ...

Driven Equipment Torque Requirements. To properly select AC induction motors for any application, the speed vs. torque requirements of the driven equipment must be understood. It is an easy mistake to believe that a 400 hp 1200 rpm motor, which would function well in a low inertia fan application, would also work aptly in a kiln application.

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Praticle Size Reduction in the Ball Mill

401.8g; the weight required to approximately half fill the ball mill. INTRODUCTION The ball mill is extensively used in pharmacy for the comminution of drugs and excipients, but suprisingly with this type of mill little is known about the mechanism of size reduction. Heywood(1) found that with coal, as milling proceeded a

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New and Used Gold Mining Equipment for Sale | Savona Equipment

Savona Equipment is your source for new and used mining equipment including underground mining and surface mining. We have both rubber tire and rail equipment, crushing plants, underground and surface drilling, milling equipment including jaw crushers, cone crushers, roll crushers, flotation cells, cyanidation equipment, conveyors, used pipe, used fittings, pumps, and used electrical teck cable.

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Heap leaching - Wikipedia

Heap leach mining works well for large volumes of low grade ores, as reduced metallurgical treatment (comminution) of the ore is required in order to extract an equivalent amount of minerals when compared to milling. The significantly reduced processing costs are offset by the reduced yield of usually approximately 60-70%.

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SR44 Soft Starters - AutomationDirect

Ball Mill 20 Centrifuge - extended start needed for sizing Chiller 10B ... 1 Determine the required trip class based on the motor load and requit time. 2 Select the applicable SR44 part number based on the required Trip Class, motor HP, and connection type. SR44 Soft Starters – Selection Table 2 Motor Size Soft Starter Size

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What size stepper motor do I-need. - MY CNC UK

Aug 09, 2010· What size stepper motor do I-need. Welcome to the MYCNCUK forums. You are currently viewing as a guest, to get involved and enjoy the very best of what this forum has to offer, simply become a member .

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Bucket Elevator Motor Power Calculation - bulk-online Forums

Dec 28, 2015· Therefore, required power at motor shaft = 1.39 / 0.8 = 1.74 kW One can use 2.2 kW motor 3.3 Power calculation for known mtph: This can be easily calculated by following direct method, to know power for design capacity Material mass per metre of height = 8 mtph / (3.6 v) = 8 / (3.6 x 1.1) = 2.02 kg/m Lift resistance = 30 m x 2.02 = 60.6 kgf

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Gardco :: Jar Mills

U.S. Stoneware''s unitized jar mills are engineered for economy, compactness and mobility. Assured reliability results from all welded steel frames, powerful roller chain drives, and pillow blocks with cartridge-type permanently sealed ball bearings for efficient operation.

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Stirred Milling VERTIMILL® Grinding Mills & Stirred Media ...

The Vertimill is always more efficient than a ball mill with energy savings ranging from 30% to greater than 50%. The transition point from the Vertimill to an SMD varies depending on the ore properties but generally is in the range of 20 to 40 microns.

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Milling - Energy intensive and high maintenance

Ball mills on the other hand, as far as process requirements are concerned, did not require variable speed. However, frequency converter based drive systems provide benefits that improve the ball mill operation. FIXED SPEED CONFIGURATIONS The key issue to operate a mill .

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A General Guide to DC Motor Maintenance - Ohio Electric Motors

Motor Winding Tests. The standard way to test winding insulation is the megger test 16 which applies a D.C. voltage, usually 500 or 1000 volts, to the motor and measures the resistance of the insulation. The minimum insulation resistance to ground is 1 megohm per kv of rating plus 1 megohm at 40 degrees Celsius ambient 17.

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Hammer Mills for Sale | Used Hammer Mills | Phoenix Equipment

Used, unused and refurbished hammer mills for a fraction of the cost of new. US-based Phoenix Equipment is a global buyer & seller of hammer mills and other industrial equipment. Review our vast inventory or talk to our team today.

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Cement mill notebook - SlideShare

Jan 07, 2015· Large tube mills work more economically; this was proved by two years production records of two different size cement finish mills, installed side by side and grinding the same feed to about the same product size and specifications. One 4400 HP mill (3.95x12.4m) showed a 12% higher capacity per unit of power than a 1500 HP mill (2.9x10.9m).

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How Often Can a Motor Be Started? – Brithinee Electric

How Often Can a Motor Be Started? ... 1200 through 3600 rpm, NEMA Standard MG10 stipulates the maximum number of starts per hour, and the required cool-down time between successive starts, for loads possessing specific inertia and torque values. A 10 hp motor, for example, may be able to start 6 times per hour; a 200 hp motor, only twice per ...

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TECHNICAL How to Spec a Mill Gear

of the liners of the mill for a complete revolution. (1) CS = 43.305 √Mill Diameter where CS is the theoretical critical speed of rotation, and is the mill speed, rpm; Mill diameter is the nominal inside diameter of the mill, m. Since we actually need the particles to come off the inside diameter of the mill to be processed, the typical mill

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How to choose grease for electric motor bearings | Mobil™

Anti-wear: Unless a motor is mounted so there is a thrust load on the bearings, it is advisable to choose a grease that does not have extreme pressure additives. These additives can shorten the life of the grease and are not recommended for use where they are not required.

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What''s normal: The role of temperature in bearing ...

The ball bearings used in most electric motors are pre-greased, shielded ball bearings. Normal motor bearing operating temperatures range from 140° to 160°F. As in all bearing applications, this measurement should be taken at the bearing outer ring.

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Motor Sizing Calculations

Calculate the value for load torque, load inertia, speed, etc. at the motor drive shaft of the mechanism. Refer to page 3 for calculating the speed, load torque and load inertia for various mechanisms. Select a motor type from AC Motors, Brushless DC Motors or Stepping Motors based on the required .

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Motor Sizing Calculations

Motor Sizing. Proper sizing and selection of a motor for your equipment is key to ensuring performance, reliability and cost of the equipment. In addition to the information below for properly sizing a motor, Oriental Motor offers online motor sizing tools as .

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Mill Speed as a Manipulated Variable for Ball Mill ...

In the current study the feasibility of using mill speed as a manipulated variable is evaluated computationally and experimentally. A control system simulator, DYNAMILL, was used to screen alternative strategies involving the manipulation of mill speed using parameter values obtained in a 0.5 tph computer controlled pilot circuit.

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Choosing the Best Media Mill For Your Wet Grinding Application

Jul 01, 2003· With a better grasp on the theories behind high-performance media mills, the process of determining the best media mill for your application will not be so painful. There are also questions you can ask an equipment supplier on the practical functions of the mill to judge the maintenance and operator friendliness of the unit for further ...

1000 HP,Synchronous Motor - Electric motors & generators ...

Jun 16, 2004· I have a Synchronous Motor coupled to a Ball Mill by clutch. It starts uncoupled and after it synchronizes the clutch engages the load. ... The coils were caped because they developed a short circuit to ground and the production requirements do not allow time for rewinding. RE: 1000 HP,Synchronous Motor ... Normally, motors tend to be HP rated ...

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Product Application by Industry (X)

Grinding Mills For motor ratings up to 3000 HP (2240 kW) and clutch shaft speeds up to 277 rpm, the clutch element selected should have sufficient thermal capacity and in most cases can be used for inching or spotting of the mill. For larger power motors and higher clutch shaft speeds a more thorough analysis of the mill is required.

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Ball Mill: Operating principles, components, Uses ...

A ball mill also known as pebble mill or tumbling mill is a milling machine that consists of a hallow cylinder containing balls; mounted on a metallic frame such that it can be rotated along its longitudinal axis. The balls which could be of different diameter occupy 30 -50% of the mill volume and its size depends on the feed and mill size.

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GRINDING MILLS-BALL MILLS-Page 8-New & Used Mining ...

From small Lab and Pilot Batch Mills to large Ball Mills, we source mills to suit your needs manufactured by Denver, , Allis Chalmers, Polysius, FL, Dominion, Hardinge, , and more. A ball mill is a cylindrical device used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints.

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Medium Voltage Motors | Motors Drives | Toshiba ...

Available in open drip proof, weather-protected type I and II, totally enclosed fan cooled, and totally enclosed air-to-air cooled enclosures, Toshiba''s medium voltage motor offerings range from 100 to 50,000 HP and 2300 to 13,800 V. Our motors are completely customizable due to our in-house design, engineering, and manufacturing capabilities, allowing us to not only meet, but exceed your specific .

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Ball Mills, grinders, crushers, ball mill grinding ...

DOVE ® offers a wide range of Ball Mills applicable for wet or dry grinding operations, for grinding and re-grinding stages of material processing. Wide range of capacities DOVE ® offers variety of models with a wide range of capacities, applicable for laboratories (200 gr. up to 2000 kg.) and small up to big scales productions.

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All GE Motors catalogs and technical brochures

Series 9000-RCM. GE Energy Series 9000-RCM Large Synchronous Reciprocating Compressor Motor • Up to 13,800 Volts • Up to 22,000 HP (16,000 kW] • 18 Pole and Above Standards and Certifications The Series 9000-RCM electrical design... Ventilation & Enclosures meet the electrical and mechanical performance requirements of the designs.

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how to align a ball mill pinion and girth gear | Mining ...

how to align a ball mill pinion and girth gear ? ore mineral crushers. girth gear with dual pinions alignment ? bulk-online forums. condition . and does any one . II-84 The pinion and girth gears of two 9 MW ball mills exhibited severe scoring within five months of commissioning.

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Selecting Inching Drives for Mill and Kiln Applications

Selecting Inching Drives for Mill and Kiln Applications Glen Cahala Frank C Uherek, Principal Engineer - Gear Engineering Software Development Abstract The inching drive, also known as a barring or auxiliary drive, is an important component of any mill or kiln installation. It is used for maintenance and inspection purposes, as

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Gold Ore Impact Flail Processing Rock Quartz Crush Mill ...

The Gold Stryker® GS-4000HV uses a 13 HP Honda Industrial engine for many years of trouble free use. It can process and crush up to 3-3.5 tons of material in a day, all the way down to #300 mesh through the mill to release the gold.

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