Rigging
Be sure to properly support the press when lifting it from the truck. Usually a sling
positioned under the inlet hopper, on the side closest to the gearbox, finds the center of
gravity. On bigger presses, do not lift just one corner of the press, as it is possible for the
frame to deflect, shifting the screw within the press.
Installation
These presses are typically called horizontal screw presses. This doesn't mean that the
presses must be installed exactly level from inlet to discharge. Presses are occasionally
installed at an upward angle. Consult the factory if you need to install the press at an angle
above 15° as an adjustment to the gearbox may be required.
Be careful not to rack the press when tightening the mounting bolts. In the case of large
presses, do not just bolt or weld the press down to a level foundation! Instead, first place the
press where it is to be installed. Next, place shims between the press frame and the steelwork
(or floor, concrete pedestal or foundation) to fill any gap where the press is to be anchored.
Only after shimming (or grouting) should the press be pulled down tight. Doing otherwise
can rack the frame of the press, and this can cause screw-to-screen interference.
A large press must be mounted solidly, preferably to a foundation or structural steel. If a
press draws its full rated horsepower without the press being anchored to the floor, the frame
of the press can twist.
For maintenance, the screw is removed through the cake discharge end of the press. Allow
the space required for such maintenance.
To suit individual conditions, a hollow bore gearbox can be rotated 180
o
, 90
o
either way.
Consult the gearbox manual or Vincent factory in these situations as it is likely that the oil
level in the gearbox will have to be adjusted.
Material can be fed into the press many ways. You may need to allow for return of overflow
material if more is fed to the press than it can take. When material is piped to a press in a
closed piping system, it is important to have a 2" vent line open to the atmosphere, along
with an overflow return line. The vent is necessary to prevent a siphon effect which can
induce a vacuum in the inlet hopper and reduce press capacity. The return line should empty
above the surface of the return pit. The overflow should fill less than half of the cross section
of the return line.
Spill containment is a consideration which should be considered, because it may be possible
for un-pressed material to purge from the cake discharge of a press.
We recommend that a manual disconnect, for killing power to the motor, be installed close to
the press.
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