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Sag Mill Syncronis Motor high axial vibration non drive

RE: Sag Mill Syncronis Motor high axial vibration non drive end bearing electricpete (Electrical) 4 Nov 14 10:00 Is there something resembling a large thin (example 3mm) plate on the end of the motor (sometimes called endshield)

SAG mill Archives

Zijin Mining Group has chosen an FL gyratory crusher SAG mill and ball mill for the Majdanpek mine part of the Chinese mining company's majority owned Zijin Bor copper mine in Serbia The delivery of the equipment to Majdanpek 180 km from Belgrade is expected to occur between 12 and 18 months from now with the project estimated to

SAG Mill Gear Fracture Analysis

Project: SAG Mill Gear Fracture Analysis Location: Kalgoorlie Western Australia Timeframe: Nov 2014 Challenge: Client was face with the prospect of an early changeout of a cracked SAG Mill gear The purpose of the analysis was to see if the gear had sufficient remaining life to

Sag Mill Syncronis Motor high axial vibration non drive

RE: Sag Mill Syncronis Motor high axial vibration non drive end bearing electricpete (Electrical) 4 Nov 14 10:00 Is there something resembling a large thin (example 3mm) plate on the end of the motor (sometimes called endshield)

Small

(8%) so it is actually a SAG mill test but The MacPherson Autogenous Grindability Test is a continuous test performed in an 18" (46cm) semi-autogenous mill with an 8% ball charge and controlled by sound at 25% mill charge level met the entire mill load is returned to the mill

INTELLIGENT GEARING SYSTEM

The mill drive system consists of the main mill motor the main reduction gear box mill pinion and girth gear The mill is also equipped with a barring drive which is either The load distribution factor for AGMA 321 05 is read from a graph for gears with a face width of up to 1016 mm AGMA 6004 F88 is a revision of AGMA 321 05 where the load

Integrated advanced process control with a sag mill

On average SAG mill production was 8 75 % higher SAG mill energy consumption was 8 70 % lower and SAG mill critical impacts were 46 90 % lower after the implementation of the ECS/ProcessExpert The utilization factor is 96 4 % representing high operator acceptance and confidence System

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

general the bigger the mill diameter the lower are the mill operating and critical speeds Thus for larger mills the number of poles will increase As a result the number of poles can vary from 48 to 72 poles (Fig 3 ) with typical mill speed requirements of about 10 rpm for larger SAG mills and about 15 rpm for smaller ball mills Figure 3

A comparison of SAG mill power models

SAG Mill power draw models are used in mill design and grinding circuit modelling to predict Austin proposed a geometric factor be applied to the formula for use in cone-ended mills model consists of a friction balance between concentric layers within the rising part of the mill load The model contains a great deal of physics and

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE

EFFECTS OF GRINDING MEDIA SHAPES ON BALL MILL PERFORMANCE Niyoshaka Nistlaba Stanley Lameck A dissertation submitted to the Faculty of Engineering and The Built Environment University of the Witwatersrand Johannesburg in fulfilment of the requirements for the degree of Master of Science in Engineering Johannesburg October 2005

1 x SAG Mill Siemens Motor

1 x SAG Mill Siemens Motor For Sale/Re-Assignment Mill Details Type of Mill SAG Mill Mill Dimensions 11 582 mm x 7 759 mm (38' x 26') (D x L) Default Mill Speed 7 5-8 0 RPM Mill Speed 7 56-10 08 RPM Liners Excluded Mill Drive Motor Type Wrap Around (included) Mill Drive Motor Size 19 400 KW (26 016 hp) Variable Speed Drive Yes Max

Conveyor Belt Calculations

This article will discuss the methodology for the calculations of belt conveyor design parameters with one practical example of the calculations and selection criteria for a belt conveyor system Calculations include conveyor capacity belt speed conveyor height and length mass of idlers and idler spacing belt tension load due to belt inclination angle of the conveyor coefficient of

Implementing strategies to improve mill capacity and

Implementing strategies to improve mill capacity and efficiency with platinum references and case studies N J BARKHUYSEN Corporation South Africa Recent advances in fine screening technology allow for the efficient classification of mill products by means of particle size separation only The advantages are numerous including improved

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

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

general the bigger the mill diameter the lower are the mill operating and critical speeds Thus for larger mills the number of poles will increase As a result the number of poles can vary from 48 to 72 poles (Fig 3 ) with typical mill speed requirements of about 10 rpm for larger SAG mills and about 15 rpm for smaller ball mills Figure 3

Optimizing Performance of SABC Comminution Circuit

The discharge grates of the SAG mill were identified as a key component in the SABC circuit and their design is a crucial factor in the mill's performance [17 18 19 20 21] The initial design of the grate section caused a serious accumulation of pebbles within the SAG mill

SAG mill Archives

Zijin Mining Group has chosen an FL gyratory crusher SAG mill and ball mill for the Majdanpek mine part of the Chinese mining company's majority owned Zijin Bor copper mine in Serbia The delivery of the equipment to Majdanpek 180 km from Belgrade is expected to occur between 12 and 18 months from now with the project estimated to

Drive Solutions for the Global Mining Industry

drive application is a dual-pinion SAG mill driven by two 5 000 kW wound rotor induction motors (WRIM) Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply Confi gured in a twin motor arrangement the motors share load in the tandem mill

Calculation of Sag Tension in Transmission Line

Calculation of sag and tension in transmission line depend on the span of the conductor Span having equal level supports is called level span whereas when the level of the supports is not at an equal level is known as unequal level span The calculation of conductor at an equal level shown below Consider a conductor AOB suspended freely

Cambering Steel Beams

the sag ratio for beams that is the ratio of mid-ordinate to chord is so small it gen- the factor of safety will be reduced When a beam is to be cold-cambered Cambering Steel Beams By David T Ricker From the 4th Quarter 1989 issue references popular load is delivered to the beam These

calculate sag/ball mill circulating load

Milling Speed and Feed Calculator Mill spindle Mill Diameter ft 8 3 Mill 21 ball mill CIRCULATING LOAD 45 3 70 0 19 4 2 73 3 SAG mill (8 – 15% ball Request Quotation circulating load Mainly in USA the term circulating load is more often used than the circulation factor Circulating load

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