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DRUM-SCREENS
What They Are and How They Work:
Operational
Synopsis |
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 The
BAYCOR FIBRE TECH
INC. MDS is an internally fed screening
device with the flow being fed into the headbox and distributed onto the internal
rotating surface of the screening cylinder.
The MDS has a solid, stainless steel unibody construction,
a screening cylinder with interchangeable screening panels and a
headbox assembly.
A standard variable speed drive electric gear motor rotates the drum screening cylinder
assembly between 3 and 10 rpm The screening cylinder rotates slowly and quietly on
four fully engineered wheels.
Interchangeable screen panels, of stainless steel woven wire mesh from 17 microns
and up, allow for precise adjustment of the openings in the screen to provide the
best screening/solids capture performance to meet your applications requirements.
BAYCOR’s standard features allow you to precisely tune
for the performance you want and need.
The liquid in the headbox/distribution chamber is directed over weirs onto the internal
rotating surface of the screen. Solids remain on the surface of the screen while
the liquid goes through the screen media.
As the screen rotates, the solids roll on the face of the screening cylinder and
are intercepted by the diverter flights. The diverter fights are mounted spirally,
with the spiral pointing to the discharge end of the cylinder. As the screening cylinder
rotates, the solids are directed up the inclined drum screen surface until they reach
and drop off of the discharge end of the cylinder. The solids can drop off into a
container, conveyor chute or solids dewatering device for further processing to reduce
the water content and/or increase the solids dryness.
The unibody design of the MDS includes a flanged discharge pan that directs the
treated water to a tank, channel or pit, or on through further piping.
The spraying/backwash system located on the upper half of the cylinder, will wash
off any solids, grease or other materials sticking to the face of the screening media
and thus keep the inside of the cylinder clean. The backwash can be set manually
or timed or programmed to operate on an as needed basis.
The MDS, with its robust and simple, stainless steel unibody
construction, its interchangeable screen panels and variable speed drive is truly
the state-of-the-art in screening technology. |
PULP
AND PAPER
INSTALATION
FIBER
RECOVERY
UP TO 99%
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Features
 Drum Independent of Media
Interchangeable Media Panels
Standard Variable Speed Drive
Fully Engineered Wheel Design
Solid S.S. Unibody Construction
Different Sizes and Models
Advanced BAYCOR Process Design
Advanced BAYCOR Mechanical Design
BAYCOR Application Experience
BAYCOR Factory Support
Full Custom Capabilities
Agents Worldwide
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Benefits
System Never Obsolete
Match Openings to Performance
Tune to Meet Operational Goals
Reliable Operation, Low Maintenance
Permanent Investment for Generations
To Suit Each Application and Budget
High Performance
Simple, Easy-to-Maintain Operation
Quick, Sure Process Optimization
BAYCOR Experts – Part of Your Team
Fit your Special Requirements
Confidence in Dealing with the Leader
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The BAYCOR FIBRE TECH INC.
Advantage
The sum of our efforts is a system
that is flexible, configurable and remarkably efficient and reliable. We tailor our
advanced designs to suit a very wide range of needs in both process and wastewater
treatment applications. We can provide food grade units when required, and custom
designs for any special needs are our speciality. Our in-house fabrication facility
is solely devoted to our pursuit of excellence in our field. Contact our office for
more information about your special needs. |
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Design Philosophy
The BAYCOR FIBRE
TECH INC. design focuses on simplicity.
Our goal is to make our systems perform better, make them more reliable, make them
simpler to operate and easier to maintain. Our systems are designed to be flexible
to meet with the demands of day to day operations. With more than
300 units installed
in all sorts of applications, we believe that we are fulfilling our philosophy with
our advanced solids/liquids separation technology.
The simplicity of our unique design simply gives us better performance. We build
our units to ensure that reliability over the long term will not be a concern. Our
systems represent permanent investments that retain their value better than any other
piece of wastewater treatment or process equipment. Tunable, adaptable performance
that operators can understand and adjust to meet with the needs of their operations
make BAYCOR the systems of choice. |
TYPICAL MDS INSTALLATION
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At BAYCOR
FIBRE TECH INC., we have incorporated
a number of "Firsts" into our Advanced Designs:
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Drum |
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Wheels |
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Experience |
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Our drum is a fully engineered, structural
element of our design and is independent of the screening media. The robust drum
is channelled and panel-ready, and can be outfitted with panels of any size opening.
Removable diverter flights are also part of the drum assembly, and are attached to
the channels. |
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As simple as wheels are,
BAYCOR has
made a science out of them. Our wheels have been totally designed for maximum life
and minimum maintenance. Two heavy duty dual-row 100,000 hour bearings serve each
wheel. Wheels and bearings operate at a small fraction of their maximum load. A unique
feature of our advanced design also eliminates the need for separate guide rollers
or cam followers. BAYCOR's wheel design is engineered simplicity.
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Since
BAYCOR introduced
our design and pioneered the use of woven-wire mesh in the screening industry many
years ago, we have built up an enormous amount of application experience.
BAYCOR’s unmatched Application Experience and factory support are
at the forefront of the technology. Commissioning and start-up optimization are part
of a systems purchase. There is no substitute for experience. |
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Panels |
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Unibody |
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Panels are available in a variety of opening
sizes. We use a robust multi-weave media of 304 stainless steel construction. (Other
grades of stainless and other alloys are also available.) Panels are easy to change
out. In difficult solids/liquids separation applications, we have the ability to
"tune" the openings in the drum to match the process and operational needs
required. It is as easy to do in a pilot unit as it is in the full scale system installed
at the plant. |
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BAYCOR’s unibody construction is simpler, cleaner and
stronger than conventional designs. Sturdy enough to meet pulp mill standards, our
unibody is destined to last for generations. Built on pairs of feet of uneven length,
we add a natural elevation to the discharge end of the unit. The diverter flights
in the drum slowly move the solids forward and slightly uphill, out of the water
that naturally runs back. The unibody automatically incorporates an integral drain
pan. |
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The
BAYCOR FIBRE TECH
INC. MDS is an internally fed screening
device with the flow being fed into the headbox and distributed onto the internal
rotating surface of the screening cylinder.