INSPECTION MAINTENANCE LADLE TURRETS INSPECTION and

INSPECTION and
MAINTENANCE of
LADLE TURRETS
METALLURGICAL PLANT and
ROLLING MILL TECHNOLOGY
SERVICE
SMS SIEMAG
X-Cellize® – Technical Service
INSPECTION and
PREVENTIVE
MAINTENANCE ...
... are key to the productivity of today’s continuous casters.
Central to this area are ladle turrets because they
constantly move the ladles from casting to charging position
and back again. That’s why the ladle turret has to work
perfectly to ensure seamless operation of the entire caster.
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X-CELLIZE® SERVICE
You know there are enormous dynamic stresses that act
on revolving ladle turrets. These physical forces inevitably
cause wear and tear, making regular maintenance a must.
Otherwise, if the ladle turret is down, the whole plant grinds
to a halt. That means you lose production – and money.
Yet, before things get that far, our X-Cellize® technical service steps in with an inspection and maintenance package
specially designed for ladle turrets. Included in this program
is the key element of roller slewing bearings.
To ensure long service life, you depend on these major factors: regular checks of the pre-stress on the bolts as well as
sufficient lubrication of the bearings. Combining these tests
with wear and lubricant analyses helps you recognize the
condition of your bearings, so you can call in our experts on
time to evaluate the situation. They then give you professional support in replacing your roller slewing bearing during a
planned maintenance shutdown.
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SMS SIEMAG
X-Cellize® – Technical Service
PLANNING –
TRUST in EXPERIENCE
Maintenance shutdown planning
Effectiveness and efficiency are the results of meticulous
planning. Together with you, we draw up mandatory time
schedules for all inspection, maintenance, and installation
work, also projecting the necessary resources and tools.
Access to experts and plant documents
We can draw on all the plans and technical documentation
as well as expert know-how from our design, production,
and commissioning teams. What’s in it for you?You save
time due to spot-on analysis, planning, and organization
from one source.
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SMS SIEMAG
X-Cellize® – Technical Service
INSPECTION and
MAINTENANCE at a GLANCE
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The inspection points on the ladle turret
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Roller slewing bearing
Condition and degree
of wear
Bolts pre-stressing
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Cover device
Wear
Bolts pre-stressing
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Bearings
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Weighing system
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Locking device
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Inspection of welded seams
of turret structure
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Anchor bolts pre-stressing
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Drive unit
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SMS SIEMAG
X-Cellize® – Technical Service
BREAKDOWN of the
INSPECTION PROCEDURE
PLANNING
Teaming up on site with you and the local assembly team
to fine-tune planning
Adjusting planning and detailing each step of assembly,
as well as the timeframe
Personnel planning
DISMANTLING the TURRET
Shutting down utilities and disconnecting the
drive system
Lifting the whole upper turret part in one step if
overhead cranes are available. If not:
Removing the turret arms and the crossbeam
with special lifting equipment:
Dismantling the lifting cylinders
Separating and dismantling the top and bottom
parts of the turret
Removing the roller slewing bearing
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Our full service for ladle turrets
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SMS SIEMAG
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X-Cellize® – Technical Service
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SMS SIEMAG
X-Cellize® – Technical Service
INSPECTING THE BEARING
CONTACT SURFACES
Optically measuring elevations at various locations
around perimeter of turret base bearing seat
Analyzing the machining necessary and calculating
the proper amount of surface re-machining required
MACHINING
If necessary, surface re-machining of top and bottom
bearing seats of the turret on site.
Re-machining according to specifications within
the permitted tolerances
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Grease analysis, measurement of bolts
pre-stressing and wear on the bearing
Replacement of bearing, if necessary
Re-machining the contact surface of the large
slewing bearing with mobile machining center
Inspection of main bearing
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SMS SIEMAG
X-Cellize® – Technical Service
ASSEMBLING THE TURRET
Installing the new roller slewing bearing on the machined
bottom half of turret base, and pre-stressing the bolts
according to specifications
Placing the upper part on top of the turret and pre-stressing
the fixing bolts
Re-assembling the turret components
TESTING AND RE-COMMISSIONING
Re-connecting utilities and drive system
Performing functional tests
Casting start up
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SMS SIEMAG
X-Cellize® – Technical Service
X-CELLIZE®® –
TECHNICAL SERVICE
is in our GENES
X-Cellize® is the SMS Siemag brand that encompasses our
complete service range. Wherever you are in the world, you
benefit from these sophisticated services. They are all designed with one purpose: to increase your plant availability!
X-Cellize® – modular in structure to meet your demands
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You’re unique. That’s why we put together customized
X-Cellize® service packages specially for you. Simply
choose the modules you want.
We offer you state-of-the-art service products for every
eventuality. From know-how transfer to immediate
response, support of long-term projects, and full-service
contracts.
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SMS SIEMAG
X-Cellize® – Technical Service
SMS Spares LLC
Pittsburgh (PA), USA
SMS Millcraft LLC
Pittsburgh (PA), USA
SMS Siemag AG
Düsseldorf/Hilchenbach,
Germany
Band-Zink GmbH
Langenfeld, Germany
8 other SMS Millcraft
Service branches
SMS Siemag Services Inc.
Columbus (MS), USA
SMS Innse S.p.A.
Milan, Italy
SMS Siemag Services Ltda.
Belo Horizonte, Brazil
SMS Siemag South Africa Ltd.
Johannesburg, South Africa
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SMS-Cheltec
Chelyabinsk, Russia
TMK-SMS Metallurg. Service
Yekaterinburg, Russia
SMS Siemag Metall. Services
Vyksa, Russia
SMS Siemag Metall. Services
Magnitogorsk, Russia
SMS Service Russia
Moscow, Russia
Right now, SMS Siemag
operates 24 service
branches in 8 countries,
plus agencies in 40 more.
Our service is
where you are.
SMS Siemag Technology
Beijing, China
SMS Siemag Met. Equip. Co. Ltd.
Shanghai, China
SMS India Pvt. Ltd.
Calcutta, India
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Technical Service Division
Graf-Recke-Strasse 82
40239 Düsseldorf, Germany
Telefone: +49 (0) 2 11/ 8 81-59 01
Telefax: +49 (0) 2 11/ 8 81-58 96
E-Mail: [email protected]
Internet: www.sms-siemag.com
SE/ 3 09 E
1.000/ 02/10 · SP · Ky · Printed in Germany
SMS SIEMAG AG