ball mill vibration troubleshooting

High vibrations on a ball mill | AMP Maintenance Forums

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...

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Ball Mill Gearbox Case History - Vibration Institute - Piedmont ...

BALL MILL GEARBOX PROBLEM. BACKGROUND INFORMATION & OBSERVATIONS: • Concern was expressed over the gearbox and Ball Mill at a power plant. • Black grease was noticed at the coupling-end pillow block bearing as well as a loose bearing nut. • Unusual noises were also reported from the machine.

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Ball Mill Maintenance & Installation Procedure - 911 Metallurgist

May 30, 2017 ... Ball Mill Maintenance Manual; On Mill Installation and Maintenance; Ball Mill Concrete Foundations; Grinding Mill FOUNDATION; GROUTING; Ball Mill Sole Plate; PINION BEARINGS; Mill TRUNNION ..... Gear noises will be prominent and some vibration will occur due to no load and normal back-lash.

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High Vibration Ball Mill Duel Pinion Drive - Mechanical Acoustics ...

I have been out of the vibration field for awhile due to illness but had a request to give an opinion A vibration survey was carried on this Ball Mill with a du. ... They have had issues in the past with pinion bearing spinning on the shaft and looseness. This is one area critical to look at. With both motors they...

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AN EXPERIMENTAL ANALYSIS OF VIBRATION OF A BALL MILL ...

Aug 30, 2008 ... This paper deals with the experimental investigation of vibrations of a ball mill under variable load. ... Keywords: ball mill, exciting frequencies, vibration signatures, time and frequency domain. 1. .... overall readings and their peaks indicate the problems with gears which are better seen in the given.

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An Experimental Investigation into Torsional Vibration in Ball Mills

Torsional vibration in ball mills can be a serious problem - even leading to failure. In the design of such mills it is therefore important to be able to design them so that such vibration will not be a problem. It is thus desirable to be able to model the torsional vibration of a rotating system which includes a ball mill. The major...

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AN EXPERIMENTAL ANALYSIS OF VIBRATION OF A BALL MILL ...

This paper deals with the experimental investigation of vibrations of a ball mill under variable load. The common causes of ... Keywords: ball mill, exciting frequencies, vibration signatures, time and frequency domain. 1. .... overall readings and their peaks indicate the problems with gears which are better seen in the given.

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vibration problems in coal mill - arhc.biz

ball coal mill vibration - miningbmw.com. ball coal mill vibration. VM series Vertical Grinding Mill is a kind of large scale powder mill which is designed specially to solve the problems of low capacity. Get More Info. image...

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vibration bearing raw mill fan - arhc.biz

vibration problem in cement mill - arisesolution.in ... rochin high vibration of vertical mill for raw material ball mill drive motor bearing vibration. Axial Vibration Cement Mill ( the cement mill fan is,. Get More Info. image...

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Ball mill inspection - FLSmidth

We are experienced in inspecting both. FLSmidth and non-FLSmidth ball mills. In order to evaluate the condition of your ball mill, it is necessary to collect data during both operation and standstill. This allows our specialists to get a clear picture of potential problem areas, as well as important information for post- inspection...

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VDZ maintenance of cement plants for the cement industry

The range of services especially comprises inspections and surveys of rotary equipment e.g. kiln, vessel, incinerator, dryer and cooler, as well as various services covering ball mill mechanics (crack test, accompanying assembly supervision and commissioning of new installation or after repair). We are working for all kinds...

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Ball mill - Wikipedia

A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics and selective laser sintering. It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow...

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Most common causes of machine vibration - Fluke

Fluke News Plus Vibration Archive Articles. ... Keep in mind that vibration problems might be caused by auxiliary equipment, not just the primary equipment. Imbalance - A “heavy spot” in a ... Wear - As components such as ball or roller bearings, drive belts or gears become worn, they might cause vibration. When a roller...

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central drive or girthgear drive - Artec Machine Systems

Ball mill. 9000 HP. Motor speed. 990 rpm. Mill speed. 14 rpm. R/L ill diameter. 5 m. Mill bearing. 22 m. Project A. -------. --------. Two-pinion girth gear drive Fig. 2A ... Forces acting on mill. A: The tooth engagement exerts forces detrimental to the mill. A s well a3 delicate alignment problems, tendency to mill position shift and.

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Intelligent gearing system-Solution to understand and ... - SAIMM

mill process flow. Figure 1: Schematic diagram of the milling process in the ball mill. [1]. The coal is fed to the mill from both sides of the mill mixed with air. The milling process of the coal happens ... include (a) vibration analysis on the mill pinion bearings, main reduction gear box and main motor, (b) oil analysis of the main...

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SAG mill pinion - gear alignment - Reliability Magazine® Message ...

I have been asked to align the pinion-gear on an 8' x 24' SAG mill. I have had considerable ... Are the bearings/teeth worned by excessive vibrations or due to wrong alignment only? We have had a lot of ... I don't believe there is a resonant problem, at this time, I think it is strictly alignment. I will attempt to...

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Novexa: Controls at a stop

Excessive backlash allows for higher vibration levels and this phenomenon is amplified by pinion/girth gear harness profile deformation s. ... Cracking controls are completed on bearings, ball mills' bottom end, reduction gearboxes, gears and tires. ... NOVEXA reprofiling interventions aim at resolving vibration issues.

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Cut the Chatter - Tooling Tips to Eliminate Vibration in Cavity Milling ...

Eliminating vibration also reduces wear on cutting tools and machining centers to minimize machine downtime. Poor fixturing, workholding and machine maintenance all contribute to vibration and its associated problems. The best way to quiet chatter is often a combination of remedies. However, machine operators and...

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Troubleshooting Vibration Problems. A Compilation of Case Histories

2- VIBRATION OF STEEL STRIP IN STEEL MILL CAUSED BY. INDUCTION FURNACE. EOUIPMENT: An induction furnace in a steel mill was used to heat and diffuse galvanize into the steel strips. SYMPTOMS: During the induction process, a loud high pitch frequency would radiate from the steel plate. When the sound...

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MACHINERY VIBRATION PROBLEMS – PART 4 BEARINGS ...

Jun 6, 2016 ... There are many different types of bearings – sleeve, plan (babbitt), tilting pad, ceramic, sintered bronze, balls, rollers, single row, double row, thrust, tapered bore, cone and cup, needle – and on and on. Why? Because bearings do different things. A bearing designed for a hammer mill is not the same as...

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Motornostix Applications - Example: Ball mill

Motornostix sensors are permanently fixed to to the machine in order to measure vibration, acoustic emission (AE) and temperature variations. Typical measurement locations are on the Motor Drive End and Non Drive End, Gearbox Input Drive End and Non Drive End, Gearbox Output and Pinion Drive End and Non Drive...

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Ball Mill Repairs Gears without Downtime - Klüber USA / Canada Blog

Nov 3, 2015 ... Challenge. A zinc concentrator near Montreal, Quebec, began to experience significant vibrations in a ball mill after welding a large crack in the shell. The repair left the mill shell distorted, which caused the axial and radial runouts to fall outside of the recommended values. The company had a spare mill on...

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LH CV - SlideShare

Nov 6, 2015 ... Gujarat State Fertilizers: Trouble shooting of Granulator & Dryer alignment. • Cement Corporation of India, Rajbhan: Trouble shooting and guidance on Raw Mill (Ball Mill) and kiln girth gear vibrations and remedial action. 3. Employer : F.L. Smidth-Larsen & Toubro Limited, India ( Indian Engineering Major...

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Gold-Ball & Regrind Mills - Vibetec

Jun 15, 2011 ... The highest amplitude of vibration on the ball mill drive was recorded in the axial position on the drive ... amplitude was already in evidence; it is unlikely that this has been a problem since the mill was ... The following problems were found when the mill was inspected all of which could contribute to the.

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high vibration cement ball mill

FIRST VERTICAL ROLLER MILL FOR CEMENT GRINDING Traditionally, the closed circuit ball mill with high efficiency separator has been . Mill vibration. ... Apr 24, 2015 ball mill vibration problems , vibration in ball and tube coal mill , selection of Cement Ball Mill Vibration , Ball Mill Drive Motor Bearing Vibration , powder...

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Spectrum Analysis - SKF.com

Introduction. A vibration FFT (Fast Fourier Transform) spectrum is an incredibly useful tool for machinery vibration analysis. If a machinery problem exists,. FFT spectra provide information to help determine the source and cause of the problem and, with trending, how long until the problem becomes critical. FFT spectra allow...

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Mixer Mill MM 400 - RETSCH - powerful grinding by impact and friction

It is also perfectly suitable for the disruption of biological cells as well as for DNA/RNA and protein extraction. With its high performance and great flexibility the mixer mill MM 400 is a unique product in the market. You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input.

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12 Reasons Why Bearings Fail - Reliable Plant

This article is a guide to the major factors that can lead to bearing failure as well as how you can prevent the issues from happening. By learning ... Rapid movement of the balls in a raceway while equipment is idle wears away at the lubrication. ... Eliminate or absorb external vibration that could cause the balls to move. Also...

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The Common Problem And Solution Of Ball Mill - Blogs - SiliconIndia

The fourth Common problem: the main engine of ball mill is of high noise and great vibration. Reasons: 1. The inlet amount is little. The scraper knife wear is bad and can't scoop up materials. The foundation bolt is loose. 2. The hard impact of material is large and there is no bed of material. 3. The grinding roll and grinding...

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RBTS, Inc. . . . . . . . . Skilled Engineers Providing Advanced Rotating ...

rotating systems and support bearings design, performance evaluation, and troubleshooting. Services. ○ Rotor Dynamics. ○ Torsional Vibration. ○ Bearings .... Ball. Bushing. Base. Spherical. Seat. Trunnion. SAG Mill Bearings Design With Trunnion Deformation. RBTS takes an integrated approach to problem solving...

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Ball mill productivity improved - SVT Engineering Consultants

Ball mill productivity improved ... Tough Problem: As pressures grew to increase productivity in the gold industry it became apparent that higher quality information was required to better ... Practical Solution: SVT implemented a on-line monitoring system to monitor the rotating equipment (vibration, temperature, etc.)...

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Ball Mill - Ficem

Whichever the mill types, grinding is inherently inefficient o < 20% of energy absorbed is reckoned to be converted to useful grinding: the bulk is lost as heat, noise, equipment wear & vibration; o For ball mills, only 3 - 6% of absorbed energy is utilized in surface production, the heat generated can increase mill temperature...

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Spectrum-Tec Vibration Analysis

Persistent vibration problems need advanced diagnostic capabilities to determine the source of the problem. Mining_Process. Operation of the following equipment may be improved by advanced vibration analysis: Crushers* Conveyors* Headframes Ventilation Fans Ball Mills* SAG Mills* Rod Mills* Feed Pumps* Other Mill...

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VESCO Incorporated » Laser & Optical Alignment

Repair, Laser Alignment and Dynamic Balancing of a 3500 hp Hammer Mill. Case Study 2: Optical ... Measurement: Vibration was measured using an accelerometer, optical phototach and digital tracking filter. ... The system was comprised of a motor, clutch, gearbox, twelve foot jack shaft, pinion gear, bull gear and ball mill.

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Ball Milling Research - ResearchGate

Explore the latest articles, projects, and questions and answers in Ball Milling, and find Ball Milling experts. ... Vibrations are of two types: stretching (symmetric and asymmetric) and bending (scissoring, rocking, wagging and twisting). ..... But these issues are reduced adding sufficient mount of liquid to the dry material.” View.

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CMI Technical Services Provide Condition Monitoring Services for ...

CMI Tech offer Shaft Laser Alignment, Geometric Laser Systems,Vibration Analysis and Thermal Imaging services and support. ... NON DESTRUCTIVE TESTING. Being a Ball Mill maintenance services company part of our role is to inspect the Gears. Pinion and Girth Gears may appear to be robust pieces of the machine...

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Impact Load Behavior between Different Charge and Lifter in ... - MDPI

Jul 31, 2017 ... applied as a leading tool to describe diverse issues in granular processes. The research results shown ... for the ball mills, while the power draw determined by DEM simulation show a good approximation ... the impact load behavior, such as X-rays [7], vibration acceleration [8–10], acoustic emissions [11],.

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Ball Mill HD Technologies - SPM Instrument

autogenous mills. In a ball mill, steel or stone balls are mixed with the ore and during rotation of the drum the ore is ground, by friction and compression, into a suitable fineness for the next step in the process. The main ... In total, sixteen shock pulse transducers and eight vibration transducers are connected to an Intelli-.

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A Practical Approach to Solving Machine Vibration Problems

Vibration Analysis. A Practical Approach to Solving Machine Vibration Problems. By Victor Wowk, PE, Machine Dynamics, Inc. The vibration analyst is first a strategist, then a mechanic. This defines the ... to make an effort and play ball. Vibration ..... Figure 6 (l,OOO-hp mill fan) were both operating at. 1,800 rpm. The other...

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Tech Tip #32 - Reducing Chatter and Vibration in End Milling

When chatter occurs, it can be self-sustaining until the problem is corrected. Chatter causes poor finish on the part, and will damage and significantly reduce the life of end mills. Carbide end mills are particularly susceptible to damage. Typical methods to reduce chatter include reducing cutting forces by: Reducing the...

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