DOS SANTOS INTERNATIONAL STARTS UP FIRST OF TWO SANDWICH
CONVEYORS FOR PARIS TUNNELING PROJECT
Marietta, GA - Dos Santos International is now starting up
one of two DSI GPS (Gently Pressed Sandwich) high angle conveyors for the Paris
Tunneling Project. DSI was awarded a
contract to provide two vertical DSI GPS systems for H+E Logistik.
The DSI GPS will each elevate 800 t/h of tunnel muck at a
90° angle. The Grand Paris Express is
the most ambitious new subway project in the Western world. The extension is a $25 billion expansion of
the century-old Paris Metro.
A particular challenge of this project was the requirement
to provide a versatile system that will be –reusable in future projects. Accordingly, DSI designed a system with a
high degree of versatility – particularly extendibility. With all the drive and take up equipment
concentrated at the head end, DSI designed the vertical portion as a hanging
structure which can be extended as necessary for higher lifts at future
applications. The two conveyor designs
are nearly identical, with only a small variation in the length of the vertical
portion. DSI designed these conveyors
for the possibility of increasing the lift to 40-45m. The two conveyors in Paris are 24.6m and
26.3m and can be used for any intermediate height up to 45m. This makes them very versatile for use at
future prospect sites.
Generally, and particularly in tunneling projects, a
recurring challenge is to accomplish the sandwiched, curved transition from the
low conventional loading angle, up to the, typically vertical, high angle while
conforming to the vertical radius of curvature constraints of troughed
belts. This is something DSI understands
well. Often transition curves are
offered too tight resulting in premature failure of the belt due to edge overstress
and material spillage due to the belt’s relaxation at the middle. Dos Santos International has proven they can
always solve these problems without compromising the technology, performance
and belt life.
The DSI Sandwich high angle conveyor continues to be the
optimal choice for tunneling. DSI
Sandwich belt high angle conveyors take on many forms and offer many
advantages. Each DSI Sandwich Conveyor
uses two standard, smooth-surfaced conveyor belts, face-to-face, to gently but
firmly hug the product being carried.
This not only makes steep angles possible; it also offers a spillage
free, environmentally sound operation because the material remains secured
between the belts. In this instance, the
wet muck can be continuously scraped from the belts eliminating carry
back.
A DSI sandwich conveyor is capable of higher conveying
speeds and greater capacity than other high angle conveying methods. The availability of wide belts and hardware
makes capacities greater than 10,000 t/h easily achieved with a DSI Sandwich
conveyor. High angles of 90° are
typical, and lifts of 300m are easily accomplished.
The use of all
conventional conveyor parts ensures high availability and low maintenance
costs, as well as interchangeability of components and fast delivery of
replacement parts.
Dos Santos International is the world’s foremost authority
on sandwich belt high angle conveyors, founded and led by the inventor of the
system, Joseph Dos Santos. DSI was
founded on its extensive worldwide experience in sales, engineering, and
construction of bulk materials handling systems and equipment. This has
included major contributions that have expanded the range of bulk handling and
transport solutions. Most notably, advances in sandwich belt high angle
conveyors have led to their worldwide utilization. The expertise of DSI spans a
wide range of materials handling systems and equipment including high angle
conveyors, high powered, high capacity, high lift slope conveyors and long
overland conveyors utilizing the very latest technology.
To learn more about Dos Santos International and their most
reliable and economical solution for your steep angle and vertical high-tonnage
conveying requirements, visit http://www.dossantosintl.com/ .
CONTACT:
Amy D. Duncan, Marketing Manager
+1 770-423-9895
aduncan@dossantosintl.com
