Embed Size (px)
Citation preview
Filter Press
2
Sefar Filter Press TechnologySefar provides filter solutions for the main types of filter presses used in the process industries,
based on fabrics that have been developed to meet the needs of our customers. Sefar and
original equipment manufacturers have been collaborating for a long time in order to optimize
each customer’s process. With Sefar, you get integrated solutions from one source. Take a
look at the solutions and technologies we offer for your filter press application and you will
be convinced of their outstanding quality.
Sefar Filter Press Technology
3
High quality and traceability: from yarn production and weaving to the fabrication of ready-to-use filters, all steps in-house
More than 50 years experience in the process industry
Complete fabric range made from different polymers (e.g PP, PET, PBT, …), available in pore sizes from 5 to 120 µm
Yarn production Weaving
Smooth surface treatmentHeat setting
Fabrication
Filter performances are mainly defined
by the fabric. Over the last few decades,
Sefar has continually developed state-
of-the-art fabric finishing, with the
required properties of dimensional sta-
bility and a smooth surface.
Multifilament
Monofilament, multifilament and mixed
mono- and multifilament fabrics are
available to cover the needs of custom
made as well as standard filter press
applications.
Solutions from one source
Monofinalment
Quality
Experience
Fabric range
4
Filtrate analysis | Particle size distribution
Development
High-tech laboratory
Technical drawing
Fabric analysis | Pore size distribution
1
2
3
4
5
6
7
8
9
10
11
Nu
mb
er
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Pore size [µm]
Services
Sefar has a fully-equipped laboratory
having standard or specifically-designed
apparatus in order to replicate the
customer‘s process so that we can
analyze the behavior of our fabric in
all conditions.
Product development takes all appli-
cation variables into consideration to
ensure optimal performance.
Sefar uses the high technology of 3D
drawings to ensure our products are
perfectly adapted to each type of plate.
Sefar‘s high-tech laboratory offers individual service to your application
Customized solutions that meet the industry’s most stringent requirements (e.g. rubber neck or non-metallic eyelets)
Laboratory analysis
Product development
5
Coating Laser cutting Modern sewing
Reinforcement for iron plateSupport and filter cloths coupled
Fabrication Solutions
The filter cloths from Sefar are adapted
to the needs of the customers, such as
plate dimensions, cake weight require-
ment, particle retention or productivity.
For that, Sefar has developed a wide
range of standard and specific closure
systems and edge treatments, together
with barrel and rubber neck fittings.
After laboratory analysis and engineering, Sefar is able to produce precisely customized solutions in its modern production facilities
Subsidiaries and fabrication centers in 25 countries on 5 continents provide local technical service for the broad range of solutions
Customized solutions
World wide support
6
Chemical and Mineral Processing
Color pigments, silicates, zeolites, coal, TiO2 and other mined and quarried materials
In terms of quality and productivity, Sefar satisfies the required high level of performance
by using strong woven fabrics, adapting the correct pore size to the application. By using
Sefar, you also ensure complete product traceability – from the cloth‘s yarn, to the fabric
weaving, through the high precision fabrication of the final filter press cloth. Especially
under aggressive conditions due to extreme pH values or high temperature (caused by the
process or exothermic reactions), specific chemical components like solvents, oxidants, an
abrasive slurry, or a heavy cake, Sefar products offer reliability of the filtration process.
7
Rubber neckLarge range of rubber necks and specialties such as diffusion ring replacements.
Coating Available on edges and also on the feed hole
Non-metallic eyelet To perfectly match the conditions of aggressive filter substances (only available in Europe)
pH- and temperature-resistant materialTo cope with the demanding requirements of mineral applications
1
3
5 7 9 11 13
Acid
ph-Meter Alkaline
Co
tton
°C
180
160
140
120
100
80
60
40
20
0
PVC
PA11
PETPA6/PA6.6
PVDF
PA6.10
PA12
PPPB
T
Filtration substances in chemical appli-
cations can be very aggressive. Sefar
filter press cloths are designed to be
able to cope with the challenging re-
quirements of your process.
For each hotspot (feed hole or edges)
Sefar can provide a solution to ensure
perfect sealing.
On request, Sefar can provide a
statement of compliance with your
order according to EN 10204:2004.
Chemical and Mineral Processing
In-house quality monitoring from yarn production to fabrication of ready-to-use filter-press cloths
Leak-proof elements, filter cloth pore sizes down to 5 µm, precise stitching and sewing
Resistant fabric material and unique make-up elements (e.g. non-metallic eyelets, coating)
Process reliability
Excellent particle retention
Chemical resistance
8
Environment
Sludge dewatering
For urban and industrial sludge dewatering, there are many different ways of preparing the
sludge (mainly coagulation and flocculation). Mineral filter aids, such as ferric chloride and limes
or polymers, are commonly used – and each water treatment has its own characteristics. Sefar
solutions for filter press applications take these requirements into account, while also including
two other crucial success factors: fast filtration cycles and low labor costs.
9
Productivity and performance
Not treatedCake sticks on the fabric
TreatedTo ensure a good cake release
Sefar has developed fabrics for environ-
mental applications having specific
weaves and a high level of calendering.
These fabrics ensure excellent cake re-
lease and an optimal cleaning capacity
during their entire life-time.
Our filter press solutions are selected in
order to perfectly match the conditions
of your slurry preparation. This produces
a high filtration performance and results
in higher-production filtration cycles.
Environment
Sefar has pioneered fabric surface
treatments, and owns unique equip-
ment and know-how to be able to
obtain a really non-stick fabric surface.
Optimal cleaning processExcellent cake release
Special thermal treatment for unique surface properties
Because of the outstanding cake release properties of the fabrics
Perfect match between fabric and all types of slurry preparation
Better cake release
Low maintenance
Filtration performance
10
Food and Beverage
Beer, cane and beet sugar, oil, wine
In many food and beverage applications, conformity to hygienic and safety guidelines is
imperative. For this reason, a reliable supplier like Sefar – able to provide you FDA or EU
compliant fabrics for filter products – is crucial to your success. You can also count on Sefar’s
consistent supply of products during seasonal production peaks, which are common in food
applications (e.g. the sugar industry).
11
Pure filtrate
Specific designs such as a sealing plateFood conformity label
Sefar supports you in responding to
the increasing regulations in the food
and beverage industry by supplying all
the necessary declarations of confor-
mity.
Sefar offers durable fabrics that are
specifically chosen for your process
and deliver highly productive results;
pure filtrate and very dry filter cake,
for example.
Sefar constantly improves its filter
cloth solutions by having long-time
cooperation with leading equipment
manufacturers in all types of food and
beverage applications.
Very dry cake
Food and Beverage
COMPLIA
NT
FDA
and EU
KONFO
RM
EU u
nd FDA
Declarations of food regulation conformity (FDA and EU 10/2011)
Co-operation with leading equipment manufacturers
Long equipment life for high productivity and optimal results
Regulation conformity
Customized solutions
High productivity
3105
-00
65 |
131
210
Sefar worldwideSefar is the leading manufacturer of precision fabrics from monofilaments for the screen printing and filtration market. Sefar products are used in a wide variety of industries, reaching from electronics, graphics, medical, automotive, food and pharmaceutical applications to aerospace, mining & refining and architecture. With its profound understanding of the applications Sefar helps its customers to achieve optimum results in their industrial processes. Subsidiaries and fabrications centers in 25 countries on 5 continents provide local technical service for the broad range of solutions offered by Sefar.
Subsidiaries Asia
China – SuzhouPhone +86 512 6283 [email protected]
India – District ThanePhone +91 2522 2940-34 /35 /[email protected]
Indonesia – Jakarta BaratPhone +62 21 5890 2065 /66 /[email protected]
Japan – OsakaPhone +81 64 709 [email protected]
SingaporePhone +65 6299 [email protected]
Malaysia – JohorPhone +60 786 771 [email protected]
Thailand – BangkokPhone +66 261 887 [email protected]
Vietnam – Ho Chi Minh CityPhone +84 862 925 562/[email protected]
Subsidiaries Europe
England – BuryPhone +44 161 765 [email protected]
France – LyonPhone +33 472 13 14 [email protected]
Germany – EdlingPhone +49 8071 90400 [email protected]
Italy – CollegnoPhone +39 011 42 [email protected]
Netherlands – LochemPhone +31 573 25 82 [email protected]
Poland – PoznanPhone +48 511 467 [email protected]
Spain – CardedeuPhone +34 93 844 47 [email protected]
Turkey – AnkaraPhone +90 312 287 34 [email protected]
Headquarters
Sefar AGHinterbissaustrasse 129410 Heiden – SwitzerlandPhone +41 71 898 57 00Fax +41 71 898 57 [email protected]
Our most current general sales conditions shall apply.Please consult the most current local product data sheet prior to any use.
Subsidiaries Americas
USA – BuffaloPhone +1 800 995 [email protected]
Canada – SaguenayPhone +1 418 690 [email protected]
Brazil – São Bernardo do CampoPhone +55 11 4390 [email protected]
Mexico – Cuautitlan IzcalliPhone +52 55 2291 [email protected]
Subsidiaries Australia & New Zealand
Australia – HuntingwoodPhone +61 2 8822 [email protected]
New Zealand – AucklandPhone +64 9 622 [email protected]
