Duplex twin worm vacuum plodders type DVZ consist of two twin worm plodders
in series connected with a vacuum chamber. They are suitable for soaps with
a pasty property or for high production rates of normal soap.
The first stage is used for the compression of soap noodles or flakes and
for the production of noodles which are then fed to the second stage after
deaeration in the vacuum chamber.
In the second stage the noodles are compressed again and extruded as continuous
homogeneous bar (in case of high production rates two or more bars).
At each stage two parallel progressive compression worms made of Silumin
run in jacketed water cooled twin worm cylinders with thrust bearings and
are driven every stage separately as standard design with constant speed
by motor with V-belt, electronic soft start, reduction gear and pinions.
If adjustment of bar velocity is requested the motor of the second stage
is delivered with frequency drive for infinitely variable speed control.
To prevent condensation the vacuum chamber is jacketed and equipped with
thermostatically controlled electric heating.
A transparent cover allows worm removal and cleaning.
Stop or go of the first stage is operated by a filling level control via
electronic soft start.
Vacuum generation is done by a liquid ring air pump.
The movable compression head with lock and extrusion die is heated electrically
on the conical end with thermostatic control.
All parts in contact with the soap are made of stainless steel.
