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Jan 07, 2015· CEMENT INDUSTRY Cement Mill Notebook QATAR NATIONAL CEMENT COMPANY DOHA-QATAR 2010 na2elll@yahoo Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
Machinery Vibration Limits and Dynamic Structural Response Vibration monitoring of rotating machinery has developed over the years to the point where it is an accepted maintenance tool. Much effort has been applied towards developing guidelines regarding acceptable absolute levels of vibration. Discussions of some of these standards and
In the cement industry, the two main families of bearings are anti-friction bearings (for lower power ratings) and sleeve bear- ... the motor. Vibration in mo-tors is normally caused by • Unbalanced loads, like ... kiln drive, where the motor is mounted with a slope between 2 .
Main Drive Pope 250 kW, 3 phase-8 poles induction motor, 60 Hz, 4160 V Fan Duty: Inlet Volume 180 m3/s Static Press. 750 Pa Fan Speed 880 rpm Installation Sequence Following the widening of the incline, the work started with the construction of concrete foundations and the installation of a 5-ton monorail system. This was followed with the po
Temperature, Vibration and Mill Axial Position Condition monitoring for preventive maintenance and proactive maintenance PBLZ rating table Maximum Torque AGMA S F =2.5 typical mill speed Maximum power Length L Ø of Casing Center Distance (CD) Weight of gear unit Gear size kNm rpm kW mm mm mm tons 160 1,750 16.5 3,000 2,750 2,120 560 32
Motor Sizing Calculations, power Motor selection should be based on the operating time (operating pattern) Each gearhead has maximum permissible load inertia. Bridge crane motor calculation - Electric motors, I need to calculate the electric motor and speed reducer for a small bridge, then the weight doesn't enter the power calculation ...
• cement industry: Nghi Son, Vietnam, 1998,Guangzhou, China, 2005. Loesche developed the 4-roller coal grinding mill with four tried and tested modules for throughputs over 150 t/h. The develop-ment was first realised in 1970 for grinding mills in the cement industry. This number of rollers also enables operation with only one pair
We offer HV motors up to 13800 V (13.8 kV) in both squirrel-cage and slip-ring designs. Various shaft heights as well as all types of protection and cooling classes are possible. Menzel high voltage motors are designed for grid or inverter operation. Up to 18000 kW .
VIBRATION STUDIES OF CEMENT MILL - maintenance. VIBRATION STUDIES OF CEMENT MILL Steps for vibration measurements Impact test was carried out at selected locations on the torsion bar to know its natural frequency Normal vibration signatures were recorded with motor speed being 994 rpm and pinion speed 122 rpm Vibration data was recorded on selected bearing locations of motor, .
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ATV6A0C45Q4 - variable speed drive APM, ATV600, single drive, 400 V, 450 kW ...
07 VRM Pregrinder - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. Scribd is the world's largest social reading and publishing site.
Apr 01, 2003· For example, if a 100 hp motor has an unbalance factor of 3 percent, the motor should be derated to 0.88 or 88 percent of capacity, 88 hp. The frequent use of variable frequency drives (VFDs) can result in detrimental effects to electric motors because of .
26 3.2.1 The main standards for low voltage motors ... 75 5.6 External radial and axial forces of the motor 75 5.7 Balancing 76 5.8 Vibration 77 5.9 Surface treatment 80 6. Noise ... the low voltage area range from 280 to 450 and a maximum of 1000 kW (with a 690 V voltage). 12 9AKK105285 EN 02-2014 | ABB Motors and Generators ...
Your complete drive solutions for process industries. Our industrial drives are available both as complete AC drives and as modules to meet your requirements as a user, OEM or system integrator. Single drive modules configuration contains a rectifier, DC link and an inverter in one single AC drive unit.
A maximum feed size of up to 20 mm is possible depending on the instrument used. If the ... The new Stabilized-Plane-Drive ensures that the main directional movement of the drive train is secured in a plane. This prevents the jar from ... Drive frequency controlled 3-phase motor Nominal motor performance 1.5 kW Protection code IP 40 B x H x D ...
Technical Data Hammer Mill Crusher engaging in crushing various rocks and stones with comprehensive strength not higher than 320 MPa into fine and micro fine powders, is widely used in metallurgy, mining, chemical, cement, coal, sand-making, coal gangue, construction, refractory .
Vibration Measurement Systems and Guidelines for Centrifugal Fans - A Field Perspective Robert A. Shannon, PE Design Engineering Manager Howden Buffalo Inc. ABSTRACT This paper presents an overview and discussion on vibration measurement systems, transducer types, advantages and disadvantages, and usage guidelines for centrifugal fan applications.
and especially since motors have been used to power them, problems of vibration reduction and isolation have engaged engineers. Gradually, as vibration isolation and reduction tech- niques have become an integral part of machine design, the need for accurate measurement and analysis of me- chanical vibration has grown. This need was largely sa-
1st grid milling vibration; ball separate vibration mill; vibration vertical roller mill; maximum vibration permissible for cement mill main drive motor of 3500 kw; Get Price . .
On 2 pole motors, the twice line frequency vibration level will appear to modulate over time due to it's close relationship with 2 times rotational vibration. Problems in a motor such as a rub, loose parts, a bent shaft extension or elliptical bearing journals can cause vibration at 2 times rotational frequency.
ATV660U15T4 - variable speed drive ATV660 - 1.5kW/2HP - 460 V. Products. See All Products. Browse Products by Master Ranges. See All Products. Browse Products by Master Ranges. Looking for product documents or software? Go to our Download Center. Residential and Small Business. Circuit Breakers.
MAGNETIC NOISE IN INDUCTION MOTORS Radu S. Curiac Siemens Energy and Automation, Inc. 4620 Forest Avenue, Norwood, OH ... noise does not manifest itself as a structural vibration of the motor. ... induction motor of P=522 kW, line voltage U=4 kV, frequency f=60 Hz, and 54 stator slots. ...
A well-planned preventive maintenance program is the key to dependable, long-life operation of motors and generators.In modern plant operations, unscheduled stoppage of production or long repair shutdowns are intolerable. The high cost of the resultant downtime eats deeply into profits. Although management probably realizes the value of a good preventive maintenance (PM)
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