Vibration monitoring to boost efficiency In this article Chris Hansford, Managing Director of Hansford Sensors, explains how predictive maintenance, in particular vibration monitoring, helps to maximise the efficiency of machinery used in cement manufacturing, by reducing downtime to a minimum.

Mill Vibration Phenomena during Cold Rolling. All machines vibrate during operation. However, only a few of these vibrations cause problems to the …

A steel mill undergoes some of the harshest conditions when creating and processing steel. The machines are put through brutal conditions, including hot temperatures, dangerous chemicals and toxins, and heavy usage. As a result, Vibration Monitoring is critical to ensure operational uptime, human safety, product efficacy, and machine longevity.

HI Prabhu, I used to monitor 9 iron ore ball-mills that range from 3000 to 5000 Hp at 15 rpm. First variable speed machine is tricky see with operation the possibility to collect the data at a fixed speed which is closer to average operation.

The process state of an AG/SAG mill can be inferred from surface vibration monitoring. This is a passive, non-intrusive, low cost and reliable …

Vibration velocity sensors are installed on the top surface of every mill rack to long-term monitor mill vibrations. Fig. 1. Experiment equipment and layout of rolling mill. a) b) The mill modulus control gain is set as 0.4, 0.6 or 0.8 with the same other conditions, and each gain value is applied to six coils. A few seconds of vibration data ...

Electro-Sensors' Vibration Monitors and Speed Switches are used on Hammermills to monitor critical vibration levels, and shaft speed. They guard against catastrophic damage and product waste caused by unbalanced machinery, hammer breakage, or undesirable speed conditions. Ratemeters and Tachometers are commonly used in this type of application ...

Condition monitoring programs can be used to monitor the vibration of the bearings throughout the plant and improve reliability of the overall process. Commonly monitored machines within a paper mill include: Calendars Chippers Dryers Drying Cylinders Fans Gearboxes Motors Compressors Paper Machine Rolls

Conclusion. By installing the Dewesoft Machine Condition Monitoring solution paper mills get a reliable solution to detect bearing issues for its press section rolls. The efficiency of the Dewesoft solution for detecting bearing failures - well in advance of the failure - also applies to other types of machinery in the industry such as blowers ...

-A case study from a paper mill. This study describes a vibration monitoring program in operation at a paper mill. The case described here of how faults have been detected on paper machines using vibration measurement. Faults have been detected long before they could become critical, enabling repair to be scheduled for planned production shutdowns.

Via OPC, vibration readings are exported from the online monitoring system to the Mill Information System (MIS) installed in the calender control room, where operators can easily keep an eye on the vibration levels. With its three paper …

is a vibration that causes it to lose its ability to maintain critical thickness accuracy of the steel coil. Potential Solution Most mills employ one or more of a variety of permanent, distributed data acquisition systems that continuously monitor temperature, vibration, force, displacement, and speed. In

pumps, compressors, pulp refiners, ball mills, furnaces and piping systems. He has a Master of Science in Solid Mechanics from the University of Calgary, and is a member of the Vibration Institute. ABSTRACT Changes in case vibration readings are used to monitor rotating machinery condition. Absolute levels of vibration are indications of ...

Vibration Based Condition Monitoring of. Rolling Mill. Vinod D.TIrpude, Jayant P.Modak, Girish D. Mehta. Abstract: All over the India, most of the processing industries are involved with rolling operations for steel and alloyed …

The Mill Module vibration monitoring software is n ormally used to monitor the signals from upto three transducers per stand, though more can be monitored if required. A typical transducer, junction box and cable supplied with an AVAS system is shown in Figure 1.

integrate system for vibration monitoring. KEYWORDS: mill vibration, sheet thickness, monitoring, sheet damage 1. Introduction Vibration monitoring in rolling mills During the rolling process, the oscillation of mill stands installation is produced for reasons of construction (coupling, gear box, gap into the back up rolls and coupled bars).

Mill Granulators are used in process plants for reducing raw coal or rock ore into fine power for burning or further processing. They come in many designs but usually are rotary mills with rings. Coal crushers of all types, such …

A mill vibration monitoring system was developed to monitor the oscillating movements of the rolls in the tandem cold rolling mill. A sketch of the rolling mill vibration data monitoring system and the specific locations of the sensors (locations A, B, C, and D) were shown in Fig. 3.Location A was the operation side of the bottom work roll (WR) bearing, location B …

Vibration monitoring can provide important feedback so that the mill operation can be optimized and extend reliability. Excessive vibrations can be the result of poor mill condition. Component deterioration can include roll and table surfaces, roll and table bearings, roll load springs, and gearbox bearings and gears.

Vibration Monitoring Systems UNIVIB Our mill monitoring systems are specifically designed to help control and prevent strip marking vibration when rolling flat sheet on single stand or tandem cold reduction mills, temper mills and tension levellers AVAS MILL MODULE "front-line", rapid response system for the detection of strip-marking ...

RESPONSE OF PRIMARY GRINDING MILL PERFORMANCE TO CHANGES IN OPERATING CONDITIONS USING AN ON-LINE SURFACE VIBRATION MONITOR . K J Davey. 1, S J Spencer. 2, P L Phillips. 3, D G Barker. 4. and R J Holmes. 5, * ABSTRACT . Opportunities to monitor and control primary grinding mill performance are strongly sought after in the mineral …

vibration monitoring programme in ideas and equipment to tackle these monitoring system at Alma Paper, operation at Abitibi Price's Alma Pa- old problems. The use of vibration there have been no unexpected break-per Mill, Quebec, Canada. It is one in monitoring to monitor and analyse the downs on monitored equipment. All

The process state of an AG/SAG mill can be inferred from surface vibration monitoring. This is a passive, non-intrusive, low cost and reliable hardware monitoring technology that is sensitive to ...

Abstract The presence of several rolls in cluster cold rolling mills makes on-line vibration monitoring and failure analysis difficult. The dynamic behaviour of rolls strongly depends on the rolling pressure in the roll bite. Strip vibration applies a dynamic component on the rolling force acting on the work roll and may excite the resonance of the mill stand.

The Arcelor T illeur cold rolling mill. has a 5-stand tandem mill that is prone to 3 rd order chatter and a. 4-stand tandem that is subject to 5 th order chatter. The. …

Vibration Based Condition Monitoring of Rolling Mill V inod D.TIrpude, Jayant P.Modak, Girish D. Mehta Abstract: All over the India, most of the processing industries are involved with rolling operations for steel and alloyed materials. To perform these operations, rolling mills are used.