Somat SPC-75S, Operation & Service Manual, Page: 9 / 66

TYPICAL PULPER
The SOMAT® System is
designed to pump the mixture of
macerated solids and water,
called slurry, to the Hydra-
Extractor® where the slurry is
reduced to a semi-dry pump.
Within the Hydra-Extractor®, the
slurry is carried by a helicoid
screw within a perforated tubular
screen. The water passes
through the screen and is
pumped back to the pulping unit.
The solids continue up the
helicoid screw to a compression
chamber or plug area where
additional water is removed by
extrusion. The solids in this area
are called the plug. This plug is
broken up at the Hydra-
Extractor® discharge opening by
a cutter and the pulp then falls
out of the discharge chute. TYPICAL HYDRA-EXTRACTOR ®
This system is capable of reducing the volume of average non-compacted waste by approximately 80
percent.
The system is powered by electric motors with the associated controls housed in Som-A-Trols (electric
control panels). Since, in the course of operation, some water is absorbed by the pulp, fresh make-up
water is supplied to the Pulper automatically through a solenoid valve which responds to a water level
sensor.
In addition to the basic system as discussed to this point, numerous additional items of equipment may or
may not be required to comprise a specific system.