We Have More Than 40 Years of Experience. [email protected]
Get Price
Blog
  1. Home >
  2. Blog >
  3. Blog Detail

Ball mill motor drive schemes

Aug 06, 2017 Ball mill motor drive schemes. vbelt ball mill drive. vbelt or polyv drives are generally used on grinding mills consuming 350 hp or less. where power exceeds this drives become so large and motors become special resulting in an uneconomical appliion. Read

Get Price
  • Ball Mill Design/Power Calculation

    Ball Mill Design/Power Calculation

    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 matching mill required to

    Get Price
  • GIRTH GEAR

    GIRTH GEAR

    system, and blending these into the overall scheme of assessment. Then the significance of the efficiency and energy requirements should be revealed. Comparison between girth gear drive and central drive. =---;=-'I----- ----- Example : Ball mill 9000 HP Motor speed 990 rpm Mill speed 14 rpm R/L ill diameter 5 m Mill bearing 22 m

    Get Price
  • Ball Mill Variable Frequency Integrated Control System

    Ball Mill Variable Frequency Integrated Control System

    The common drive mode of ball mill: three-phase AC motor – hydraulic coupling – gear reducer – belt pulley reducer. Since the ball mill belongs to the constant torque load, its speed regulation efficiency is equal to speed regulation ratio that a large

    Get Price
  • Ball mill drive motor choices

    Ball mill drive motor choices

    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

    Get Price
  • Ball Mills - Mineral Processing & Metallurgy

    Ball Mills - Mineral Processing & Metallurgy

    Feb 13, 2017 Any type of drive can be furnished for Ball-Rod Mills in accordance with your requirements. Belt drives are available with pulleys either plain or equipped with friction clutch. Various V- Rope combinations can also be supplied. When a motor drive is selected, please mention which drive arrangement is to be used

    Get Price
  • (PDF) Evaluation of synchronous motors on grinding mills

    (PDF) Evaluation of synchronous motors on grinding mills

    In twin motor drive systems, ... 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 advantages of this scheme are

    Get Price
  • Selecting Inching Drives for Mill and Kiln Applications

    Selecting Inching Drives for Mill and Kiln Applications

    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 well as an emergency auxiliary drive to keep kilns rotating when the main motor fails. This

    Get Price
  • Ball Mill-Ball Mills-Henan Hongke Heavy Machinery Co., Ltd

    Ball Mill-Ball Mills-Henan Hongke Heavy Machinery Co., Ltd

    Ball mill is mainly made up of feeding part, discharging part, rotary part and driving part, including reducer, small drive gear, electrical machine and electronic control. The hollow shaft adopts steel casting, and its inner lining is detachable and changeable while the rotary rack wheel uses casting gear hobbing and there is a wear-resisting

    Get Price
  • Causes and solutions of severe vibration of ball mill

    Causes and solutions of severe vibration of ball mill

    The normal operation of the ball mill uses the motor to drive the ball mill to perform rotation operation. The motor drives the ball mill to directly connect the pinion through the elastic pin coupling and drive the big gear ring to realize the operation of the ball mill. In the process of

    Get Price
  • How To Make A Scheme For The Wet Ball Mill Machine Of

    How To Make A Scheme For The Wet Ball Mill Machine Of

    How To Make A Scheme For The Wet Ball Mill Machine Of ... 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

    Get Price
  • Motors, drives deliver force behind the scenes

    Motors, drives deliver force behind the scenes

    Nov 15, 2017 Figure 1: Cementing controlled positioning. To control a medium-voltage AC motor with a low-voltage AC drive, Ash Grove Cement's plant in Chanute, Kan., replaced generators powering its ball mill spotter with preconfigured, 480-V, 450-hp Allen-Bradley AC VFDs, which power three 4,000-V, 2,300-hp AC motors to rotate the mill efficiently and bring it to controlled starts and stops

    Get Price
  • Gearless mill drives - ABB

    Gearless mill drives - ABB

    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 rotor of the gearless motor. Building a track record

    Get Price
  • SAG Mill Components - Mineral Processing & Metallurgy

    SAG Mill Components - Mineral Processing & Metallurgy

    Apr 18, 2018 The type of drive and drive design used on a given mill, especially with respect to the motor type, is directly influenced by the study of the owner’s electrical system. Manufacturing limitations from gear vendors determine the minimum number of pinions which can be used to drive the mill as well as the number of gear sections

    Get Price
  • (PDF) Technical evaluation and practical experience of

    (PDF) Technical evaluation and practical experience of

    Most of these mills are driven by adjustable-speed drive 2000 m (6000 ft) above sea level; synchronous machines, connected to cycloconverters or load- 3) low-frequency output, because large diameter grinding commutated inverters (LCIs) controlling the motor speed and mills must rotate at variable low speeds, in the range from torque [2], [8]

    Get Price
  • High vibrations on a ball mill | AMP Maintenance Forums

    High vibrations on a ball mill | AMP Maintenance Forums

    Jan 21, 2011 High vibrations on a ball mill. Hello everyone, I have a problem with high levels of vibration at the supports of the pinion (fixed and floating bearings) of the cement ball mill. The kinemantic scheme with the measurement locations and several representative spectra and timewaves are in the attched file. The dominant vibrations are in the

    Get Price
  • 1 x Metso SAG Mill & Siemens Motor

    1 x Metso SAG Mill & Siemens Motor

    2 x Metso Ball Mills & 4 x GE Motors For Sale/Re-Assignment Mill Details (2 x Ball Mills & 4 x GE Motors, Type of Mill Metso Ball Mill Mill Dimensions 6,706 mm x 11,125 mm (22’ x 36.5’) (D x L) Mill Speed 12.44 RPM Liners Excluded Mill Drive Motor Type Dual Pinion Synchronous (2 Motors per Mill) Mill Drive Motor Size 2 x 4,650 kW min = 9,300kW per mill

    Get Price
  • Thyristor Control of 3-Phase Induction Motors | Electrical

    Thyristor Control of 3-Phase Induction Motors | Electrical

    Infact, the slip-power is either returned to the supply network as in Scherbius scheme or used to drive an auxiliary motor which is mechanically coupled to the induction motor shaft, as in Kramer scheme. 1. Static Scherbius Drive: The static Scherbius drive also uses the principle of slip-power recovery. The schematic diagram is shown in Fig. 3.50

    Get Price
  • Electromechanical Dynamic Behaviour and Start-Up

    Electromechanical Dynamic Behaviour and Start-Up

    According to Figure 1, the dynamic model of the ball mill is where is the rotation resistance coefficient of the drive motor, is the friction torque, and the rotation direction of the ball mill is determined by the sign function sign().. When the rotational speeds of the clutch are synchronised, i.e., =, the clutch no longer slips. The dynamic model can be written as follows:

    Get Price
  • grinding media size ditribution for ballmills

    grinding media size ditribution for ballmills

    the factors affecting the efficiency of ball mill grinding. effects of grinding media shapes on ball mill performance grindingBall size distribution inside an industrial mill was analysed in terms of 43 Mathematical Description of Nonspherical Factors with Media Size grinding efficiency of milling is affected and it was therefore decided to

    Get Price
  • Innovative Drive System of Xinhai Ball Mill Machine

    Innovative Drive System of Xinhai Ball Mill Machine

    Mar 26, 2020 At present, the drum speed of many ball mill machines is mostly 17r/min~32r/min, and the running speed of the small ring is mostly 120r/min~200r/min. The current ball mill generally adopts the drive mode that the asynchronous motor drives the small gear ring after the speed reduction of

    Get Price
  • How I built a quick and easy home-made ball mill

    How I built a quick and easy home-made ball mill

    The ball mill is powered by a fairly robust 12V DC motor salvaged from a junked printer. It had a pulley for a fine-toothed belt on it. It was left in place and it seems to drive the heavy round rubber belt well without slipping. The motor was mounted using screws on

    Get Price

Relate Blog

toTop
Click avatar to contact us