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ScraperChainRakeCarUpgrades

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BRIDGE SCRAPER UPGRADES
Scraper Chain
& Rake Car Rail
- better perfomance
for your reclaimer
WE DISCOVER POTENTIAL
Want better performance from
your reclaimer?
FLSmidth has redesigned important
elements of the reclaimer system to
increase reliability and optimise
maintenance, cost and time.
2
New scraper chain for greater reliability
The redesigned chain and scraper blades are now even more
robust, specifically to increase reliability, reduce maintenance and
prolong the lifetime of your entire scraper chain system.
The new chain assembly includes important updates that improve
its strength and reliability – helping us to achieve our goal of preventing damage and fatigue failures.
Why upgrade the scraper chain?
Upgrading an existing scraper system with a sturdier chain and
blade will increase the system’s lifetime and improve reliability.
Your operations benefit from:
1.
Chain link
2.
Chain roller
3.
Hollow section
•
•
•
Reduced downtime thanks to simpler, faster
maintenance procedures
Lower component replacement costs
Improved overall performance of your installation
Robust features
We have doubled the number of guide rollers for the scraper
blades to ensure the chain retains its path. This lowers the wear on
chain links, chain guides and bearings.
To minimise internal stresses and reduce the risk of cracks, the
outer chain link has been strengthened thanks to a new design
without bends or welds. Instead, it is fabricated from a single steel
plate and bolted to the chain links – with the bolts also functioning
as hubs for the chain rollers.
The chain links are fitted with a hollow section. This improves the
chain’s overall stiffness, resulting in a better locking assembly
and reducing fatigue failures caused by repetitive impacts. The
hardness and hardening depths for the chain roller, chain pin and
bushing have also been optimised.
Efficient upgrade process
An upgrade can be performed quickly and with minimum effort.
During the upgrade, most of the reclaimer remains untouched and
only the scraper chain, blades, shaft, chain guide and lubrication
system need changing. The typical process involves:
1.
Scraper chain
2.
Scraper blade
3.
Guide roller
Fast installation
Your bridge reclaimer can be installed and back in service typically
within 2-3 weeks – which can be achieved within a normal maintenance stop.
1. Removing the existing chain system and guides
2. Installing new shafts and sprocket wheels
3. Re-fitting and re-aligning shafts and chain guide system
4. Assembling new scraper chain and scraper blades
5. Replacing the lubrication system
6. Commissioning the new installation
3
Design features
With FLSmidth’s newly designed
scraper chain and blades, you can
prolong the lifetime of your entire
scraper chain system.
Scraper blade
Scraper chain
Drive shaft and hub and
sprockit wheel
,
Chain guide
,
,
Intermediate shaft
4
A rake car rail system that
lasts longer
The redesigned rake car rail setup
increases the lifetime of the system and
eases future maintenance
procedures. In your future rail
replacements, downtime will be
reduced.
5
4
2
Upgrading the rail increases the lifetime of the entire rake car rail
system, while reducing downtime and maintenance costs. Your operations benefit from:
•
•
•
1
3
1.
Rail
Why upgrade the rake car rail?
2.
Clamps
3.
4.
Rubber pad Supporting structure
Reducing the wear of rails and wheels
Easy alignment of rail system
No welding is required for replacement of new rails
A rubber pad fitted below the rails ensures constant, full contact with
the wheel, providing better support – meaning smoother operation
and less system wear.
Efficient upgrade process
When the new rail system has been installed, your own team can
easily perform any necessary future replacements. The system
uses stock quality rails, which are normally readily available from
your local supplier.
In a typical process, your team will:
1. Remove the existing rails by gouging
2. Prepare the top surface of the main girder
3. Weld flat bars to the main girder top surface
4. Mount the rail fixing accessories
5. Align and install the new rails
6. Dismantle rake car wheels and guide rollers
4
2
3
1
Replacing worn-out rails in the future will take no more than approximately one day.
Longer life, easier maintenance
FLSmidth has redesigned the rake car rail. The new design increases the lifetime of the rake car rail system and eases maintenance
procedures.
6
1.
Guide rollers
2.
Buffer
3.
Rail cleaner
4.
Rake car boogie
Design features
FLSmidth’s new rake car rail
increases the lifetime of rails, while
reducing downtime.
Main girder
Rake car rail,
supporting
stucture and rail
fixing accessories
,
,
,
,
,
Rake car
Rake car wheels,
guide rollers and
rail cleaner
Scraper chain
system
7
Project Centre Denmark
FLSmidth A/S
Vigerslev Allé 77
DK-2500 Valby
Copenhagen
Tel: +45 3618 1000
Fax: +45 3630 1820
E-mail: info@flsmidth.com
Project Centre USA
FLSmidth Inc.
2040 Avenue C
Bethlehem,
PA 18017-2188
Tel: +1 610-264-6011
Fax: +1 610-264-6170
E-mail: info-us@flsmidth.com
Project Centre India
FLSmidth Private Limited
FLSmidth House
34, Egatoor, Kelambakkam
(Rajiv Gandhi Salai, Chennai)
Tamil Nadu – 603 103
Tel: +91-44-4748 1000
Fax: +91-44-2747 0301
E-mail: indiainfo@flsmidth.com
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Copyright © 2017 FLSmidth. ALL RIGHTS RESERVED. FLSmidth is a (registered) trademark of FLSmidth. This
brochure makes no offers, representations or warranties (express or implied), and information and data
contained in this brochure are for general reference only and may change at any time.
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