Best Sale Screw Dewatering Filter Press for Waste Water Treatment
Structural principle
Mulit-plate sludge dewatering machine is consisted of fixed
ring,movable ring and screw filter parts.This machine is combined
with filtration enrichment technology and press technology,sludge
concentrate and squeeze can be complated in a cylinder.In
concentrate process,the relatived movement of fixed ring and
movable ring can squeeze out water quickly,never blocked.In the
squeeze process,with the decrease of volume of screw cavity,the
pressure will become larger,then the water in sludge will be
squeezed out.Our machine use particular filter model replace the traditional
filter cloth and centrifugal filtration method,make the
solid-liquid separator and self-cleaning technology more easy and
advanced.
Working Principle:
1. Concentration : When the screw drive shaft rotation, live in
multiple solid drive shaft periphery laminated relative
movement,under the force of gravity,Water from the relative motion
of laminated filter out in the clearance,Achieve rapid
concentrate. 2. Dehydration : After concentrate of sludge as the
rotation of the screw axis moves forward constantly ,Follow the
direction of the mud cake export , Screw axis of pitch became
smaller , The gap between ring and ring also gradually become
smaller , Spiral cavity volume shrinking ,Screw drive shaft Pushed
by continuous operation in turn ,The water squeezed out of the
sludge ,Filter cake solid content increase ,Finally realizes the
continuous dehydration of sludge .3. self-cleaning : Screw axis
rotation ,It pushes the float ring continuous rotation ,Equipment
rely on the fixing ring and float ring to move between
consecutive since the cleaning process ,Skillfully avoided
Traditional dewatering machine common plugging problem .Our company
are
always focusing on independent technology innovation of themselves.
Under the cooperation with Tongji University, we have
successfully developed the new generation of sludge dewatering
technology - multi-plate screw press, a screw type sludge
dehydrator that is much more advanced in very aspects than belt
presses, centrifues, plate-and-frame filter presses, etc. It
features clogging-free, wide range of applications, low energy
consumption, simple operation& maintenance.
Working process:
1. Confirm which kind flocculant will be used and confirm the
adding ratio. 2. Before take on dewatering,please infuse
flocculant,dilution of PAM is 500-1000 times.Sludge will be taken
to mixed flocculation tank by sludge pump and PAM liquid will be
sent to this tank by chemical feed pump too.Then mixer will mix
them together,until from alumen floc.Then sludge will taken on
dewatering process, and filter liquid will be squeezed out and flow
back to raw water tank. 3. After concentrate,sludge will be pushed
forward at the force of screw axis,at the influence of all kinds of
force,sludge will take on dewatering in squeeze process,the filter
liquid have high soild content,so this liquid will flow back to
mixed flocculation tank to taken on dewatering again. 4. After
dewatering,mud cake will be discharged from outlet,they will be
send to converyor and taken to tippers,then they will be sent to
dry field.
Model list
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