Reverse Flow Filtration Systems
Complete systems for finest filtration of oils:
solid-liquid-separation
Reverse flow filtration system RFA 600-14000
for roll texturing machine
Reverse flow filter stage, ready for installation,
filter area 44 m²
FRANKEN - Reverse Flow
Filtration Systems: a perfect
combination of
filter technology
and expertise in plant
engineering and construction.
Our RF reverse flow filters are
engineered to meet the demand
for
state-of-the-art liquid
superfilters.
This filter technology, fully able
to meet the demands of the
future, is key
in enabling us to
engineer and build complete
plants on the scale you require.
We can also supply all the peripheral
equipment the project
demands, plus all
supply components
for the machines
which are part of the plant.
Users benefit from these
advantages:
• Superfiltering with no need for filter aid
• Fully automatic/operator-free operation
• Low running costs
• Low maintenance costs
• Guaranteed service life for filter elements
Fields of application:
• Erosion machines ( EDM + EDT )
• Rolling mills for non-ferrous metals,
..steel and high-grade steel
• Honing
norms and have a wide experience of processes.
Milling oil storage tank with pumps, heating, cooler,
adsorption filter
Customer-specific supply stations for connected machines or rolling
mills often form an integral part of reverse flow filtration plants.
We are able to supply
• Clean and dirty tanks to your requirements, including mutiple tanks
• Pumping stations with all fittings, pipes, measurement and control devices
• Heating and cooling systems
Vacuum-type belt drier with circulating filter belt,
integrated belt cleaning
Processing of the reverse flow liquid and
the solids contained in it is achieved via
the application of vacuum-type belt drier
with dry cake discharge.
The driers are equipped with components according to application. This ensures
that all solid particles are washed out
of the filter circuit.
SPC-control
System Control
Fully-automatic SPC systems
with
user-friendly help programs
which
provide operating
mode and malfunction monitoring
displays are standard.
The
control system is designed
and built by
us – from A to Z.
RF filter elements easy to install,
reliably sealed ( O-ring )
Technology
Our reverse flow filter technology
is based on a modified
gap filter principle:
extremely
thin filter disks are stacked on
a perforated central pipe and
pressed down at a defined force.
The degree of filtering depends
on the width of gap between
the filter disks.
Modification of
average filter gap width (and
thus the fineness of filtration)
can
be achieved by applying filter disks of various surface
roughness and modifying
the
pre-pressure.
• Filtering: 12 – 48 h
• Reverse flow: 4 min only
The filtrate which compressed air forces through the filter elements during
reverse flow is stored in the head of the filter housing.
Advantages:
• defined reverse flow volume
• high-level process safety
• extremely fast and effective reverse flow
The process is engineered to ensure that the filtering effect is 100%
with each new start of the filtering cycle.
Fineness of filtration 5 μm
measured filtering efficiency
Process limit values:
Filtration of rolling oil
rolling oil
filtration
contaminant
Reverse flow filter RF 400
as connectable assembly
This filtering technology, and in particular the uniquely engineered reverse
flow, are key in the realization of filter areas (even if extensive) within a single
housing at no sacrifice in terms of efficiency. We are therefore in a position
to supply reverse flow filtration plants of very high throughput.
AD2000&DIN
+6bar, 100°C
as double or fourfold filtering stations.
Filter elements
Our filter elements are built to
engineering principles according
to which
mechanical failure,
even after use over periods
of many years, can be more
or
less excluded.
This is why we are able to offer
a long-term warranty for
our
filter elements – whatever the
application.
Nevertheless, if mechanical wear does eventually make
replacement of filter
elements
necessary, customers can benefit
from the option of entire
RF filter
stage regeneration, with recycling of all engineered
components (filter cores
and
filter plate). Regenerated RF filter stages
are also fully guaranteed for
filtering efficiency level and
service life.
The design of our range of vacuum driers
follows on from our RF filter engineering:
• fully automatic
• no filter aid required
• self-monitoring
• low maintenance costs
while integrating all components
necessary to the process.
The multiple safety design of the
driers satisfies the highest requirements.
drier component and with monitored park
position
Drier FTA 1000-B Chain
drive + reversing cylinder
Spray lance with cleaning nozzles
Driers need to be able to completely separate all solids backwashed
from the RF filter. This is only achievable by having a fineness for filtration
(e.g. 1μm) comparable to the RF filter. This is achieved by presedimentation
( = cake formation ) or by a multi-stage filter medium.
of filtration
Process data: