Une application de surveillance voit ROUGE et prévient les temps d’arrêt non planifiés des ventilateurs extracteurs

Customer Success Story

Et prévient les temps d’arrêt non planifiés des ventilateurs extracteurs

Vicat, fabricant français de ciment et de matériaux de construction à l’international, cherchait une solution de surveillance pour ses imposants ventilateurs extracteurs (Exhausteurs) sur son site de Saint-Egrève. L’objectif : prévenir les défaillances imprévues et, sur le long terme, gagner du temps en minimisant les inspections. Vicat s’est donc tourné vers FIABTECH, partenaire service de Schaeffler en France et a opté pour la solution de surveillance conditionnelle Schaeffler OPTIME (CM).

En quatre mois, OPTIME CM a permis d’éviter deux arrêts non planifiés.

A gauche : Eric Basso, à droite : Olivier Freret

Eric Basso, responsable maintenance mécanique, et Olivier Freret, responsable maintenance électrique, du site VICAT de Saint-Egrève, partagent le même avis :

“Dans un premier temps, nous n’étions pas tout à fait sûrs de vouloir faire surveiller nos ventilateurs extracteurs par la solution OPTIME, mais nous avons accepté de lancer un projet pilote.

Nous avons bien fait, car nous avons déjà évité deux arrêts non planifiés.

Nous sommes convaincus, et pas uniquement par la solution elle-même, mais aussi par FIABTECH : nous avons beaucoup apprécié l’expertise et le professionnalisme de ce partenaire service de Schaeffler.

FIABTECH et Schaeffler : le bon choix.“

Avantages
Challenge
Solution
What's Special
Technical Information
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Contact

Benefits

Customer benefits

Vibration expert always available
Continuous monitoring and good insight into trends via app
Unplanned downtimes are reduced to a minimum
More security for the process

Challenge

Vicat is a member of the Natural Capital Accounting Workshop of the Business and Biodiversity Platform and works with a range of stakeholders to maintain ecological balance.

The exhausters are classified among many other machines as critical in the Saint Egrève cement plant. The gigantic exhaust fans have the task of sucking the combustion air out of the rotary kiln. The hot air is used as process heat for the further processing of the raw material – for example for the pre-drying process – and is passed on via air gas channels.

All components, especially the bearings of the exhausters, are subjected to high stresses. Unplanned downtimes can occur due to imbalance and lubricant failure caused by high temperatures and contamination. For this reason, exhausters have to undergo extensive inspections throughout the year.

Olivier Freret, chief of electric maintenance, at the Vicat-side Saint Egrève describes the challenge as follows:

“When an unplanned failure occurs on the drive of the exhaust fan, in the worst case it could mean we have to shut down the rotary kiln. The material in the kiln could cool down and have a huge economic impact. We would like to replace the time-consuming inspections with solutions that offer us more security and planning reliability.“

With this request, VICAT turned to Schaeffler‘s partner FIABTECH.

Exhauster accomplish a lot in dusty environments with high temperatures

Technical information – Exhauster

Motor
Power Speed	200 KW 990 RPM
Drive V-Pulley Receiving V-Pulley	Φ 450 mm Φ 450 mm
Fan blades	12

Solution

Schaeffler experts recommended the condition monitoring solution OPTIME CM. The scalable solution consists of wireless sensors, a gateway and digital services based on proprietary Schaeffler algorithms. In a pilot, a few sensors were initially installed on two exhausters at different locations. Four months after installation, a change in machine status at one of the exhausters was indicated on the OPTIME app.

First alarm message at the back bearing
OPTIME CM identified unusual behaviour at the bearing. The bearing was then dismounted. During the investigation, a strong current flow was detected.
Second alarm message on a gearbox bearing
OPTIME CM issued a red alarm on the gearbox bearing. The bearing has not been properly lubricated. The bearing should be replaced at the next scheduled inspection. In the meantime, maintenance made sure that the bearing was lubricated in the correct way.

What's Special

In total, 18 sensors have now been installed on different bearings and units on four exhausters. Impressed by the professional service provided by Schaeffler partner FIABTECH, another pilot was started with the OPTIME C1 intelligent lubricator from the OPTIME Ecosystem*.

Next upcoming project: ProLink CMS to monitor the ball mill. This is a multi-channel online condition monitoring system. It can be used for machines with variable operating conditions and harsh environmental conditions, such as surface temperatures
exceeding 70 °C.

OPTIME CM is mounted on a motor
OPTIME CM is mounted on a housing
Pilot: OPTIME C1 lubricator is mounted on a motor

Technical Information

How OPTIME CM works

The sensors monitor machinery and equipment at the customer’s site. The gateway receives the data from the sensors and transfers these to the Schaeffler cloud. OPTIME CM detects problems, sends alarms accordingly and provides information on the possible cause of the problem. Expert knowledge of condition monitoring is not required as this knowledge is already integrated in OPTIME CM in the form of Schaeffler know-how.

OPTIME sensor specifications

Vibration bandwidth	OPTIME-3: 2 Hz – 3 kHz
Calculated parameters	7
Sensor commissioning	NFC (Near Field Communication)
Communication	Wirepas Mesh (2.4GHz ISM Band)
Measurement cycle	Parameters: every 4 h Time waveform: every 24 h

* This is how the OPTIME Ecosystem works

The OPTIME Ecosystem consists of many elements that work together to reduce downtime. It begins with our OPTIME User Interface that you can use to get a complete overview of all your machines and lubrication points.
The intuitive mobile app, dashboard and expert viewer mean you always have easy access to the right information at the right time, no matter where you are.
This is made possible by OPTIME Cloud & Analytics. With extensive processing power and capacity, it takes huge amounts of data and makes it easy to understand and work with.
This data comes from your OPTIME vibration sensors and smart lubricators via the OPTIME Gateway: a standalone device that makes secure cloud connectivity and IT integration easy.
Connecting all OPTIME devices is the automatic and self-healing OPTIME Mesh Network. Easy to set up, the mesh network needs low energy and makes large-scale installations possible. So you can monitor your machines from wherever you are with OPTIME Condition Monitoring and simplify the lubrication of your machines with OPTIME C1.
The OPTIME Ecosystem also includes the OPTIME Connector Service and the OPTIME REST API.
The OPTIME Connector Service lets you connect other devices to the OPTIME Ecosystem quickly and easily.
The OPTIME REST-API makes it easy to connect your OPTIME Ecosystem to other existing systems.

Learn more about the OPTIME Ecosystem

OPTIME CM, OPTIME C1 and ProLink CMS are part of the Schaeffler Lifetime Solutions portfolio, which offers a comprehensive range of products, services and solutions for industrial maintenance. It is designed to support maintenance engineers throughout a machine’s entire lifetime.

To Schaeffler Lifetime Solutions