 Design
of the Gravity Sieve Bend PATENTED
Conn-Weld's Static
Sieve Bends are the result of thirty years of field
experience in working with plant circuits and systems. We listened
to what
process engineers and plant operators asked for, then we designed
and built ConnWeld's complete line of profile screen surfaces,
feed boxes, screen holders and turnarounds.
Conn-Weld's Sieve Bends can be used in high capacity, wet
screening circuits, as an economical means for classifying
and dewatering
for all industries.
Standard
Sieve Bends are manufactured in 3 ft. to 10 ft. widths; 45°. 60° or
120° arcs;
30", 40", 60" or 80" radii.
Feed Boxes, Screen Holders, and Turnarounds are manufactured
from carbon or stainless steel.
Ceramic Lined Feed Boxes and Screen Holders are available.
Feed
Boxes (standard or custom design) are designed with baffles
to feed slurry into a pool to reduce the kinetic energy of the
onrushing slurry.
 The unique
Feed Gate is designed so that the operator may adjust and clean
the opening to evenly distribute the slurry across the
entire width of the screen at right angles to each knife sharp
profile wire and slot opening.
Sieve Screen Holders are designed for either
30”, 40”, 60” or 80” radii, 45°,
60° or 120° arcs.
Conn Weld can custom design to suit customer requirements.
Feed
Lips
and Discharge
Lips are designed to be replaced with minimum maintenance,
requiring removal of only four bolts.
Conn Weld manufactures the widest range of Profile
Sieve Screens in the industry today, with particle separation
ranging from
50 microns and up. The profile screen surface has knife sharp
edges for removal of layers of liquid and undersize material
as the liquid passes the opening thus preventing blinding
of the slot opening. The undersize material is classified
at approximately
one half the screen opening.
The particle shape, volume of undersize and amount of near
size material as it passes over the openings of the curved
screen
determine the size separation, as well as the volume that
will pass through the screen. A curved sieve screen has
proven to
be more efficient than a flat sieve screen since the curve
induces centrifugal forces which hold the slurry to the
screen surface.
 Sieve Screens are available in various options of profile
wire size and opening to suit each application-see profile
screen
selection data.
In dewatering and classifying below 60 mesh separation
a lower percent solids-to-slurry ratio is required.
Sieve Screen Turnarounds are essential for ease of
periodic reversal of the sieve screens. When the
leading edges
of the profile wires
are worn, it is time to reverse the sieve screen
for maximum performance of the screen. The turnaround
is
designed for
one man to easily reverse the screen. The turnaround
incorporates a safety latch to keep the sieve screen
locked in position.
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About Conn-Weld
