Syntechnik Designs Industrial Screens & Filter Systems

SYNTECHNIK DESIGNS cc Reg. No. CK. 1987/019269/23 INDUSTRIAL SCREENS & FILTERS VAT Reg No.4840106357 P.O. Box 3688

HONEYDEW 2040

SOUTH AFRICA

Unit 18 Five Star Business Park

Cnr. Beyers Naude & Juice Str.

TEL: +27 (0)11 794-6531

FAX: +27 0880 11 794-6541

info@syntechnik.co.za

www.syntechnik.co.za

Design-Manufacture-Supply

Syntechnik Designs Industrial Screen and Filter systems are designed, manufactured and supplied to meet the quality, reliability, and delivery requirements of our customers.

Just contact us for your application: we have a suited solution for simple or more complex separation techniques.

Contents:

1.1 SELF CLEANING FILTER UNITS

1.2 TWIN FILTER UNITS

1.3 WEDGE WIRE SCREEN CYLINDER STRAINERS & ELEMENTS

1.4 SINTERED WIRE METAL CLOTH FILTER MEDIA

1.5 HIGH POROSITY, SINTERED POWDER STAINLESS FILTER ELEMENTS

1.1 SELF CLEANING FILTERS UNITS

Designed for fluids and high viscosity media in severe production environments

Design and Properties:

� The filter systems are of strong design and are suitable for robust applications. � The filter systems consist of the following components: Filter housing, wedge wire element, scraper

assembly, and either manual or powered drive unit. � The filtration/straining process flows outside → inside, so that the particles remain outside the

wedge wire element. � The strainer’s self cleaning action removes the particles from the wedge wire element. � Particle removal occurs by means of gravitational and/or mechanical means through a dump- valve. � Optional mechanical particle removal can be achieved by electronic means using differential

pressure monitoring and an actuated valve. � The wedge taper profiled shape of the mesh structure prevents clogging. � Slot opening, open area and aperture per linear dimension may define screening performance. � The filter element can be maintained without the need for specialist tools. � Self-cleaning provides uninterrupted filtration.

� No filter element disposal problems. � Minimum particle loss. � Easy removal of the filter element. � Suitable for all fluid screening applications. � Slot opening range from 10µm (micron) nominal

onwards. � Superior mechanical strength achieves high

differential pressure ratings. � Robust housing. � Sludge removal action by dump valve and optional

automatic means. � Maximum operating temperature limited by seal

gasket properties. � The filter system is available in either manual or

motorized mode.

Calculation Data required:

� What needs to be filtered? � Flow in Liters per hour (L/hr). � Viscosity.

� Operating pressure. � Operating temperature. � Particle types and size.

For us, quality means developing products adapted to the client’s requirements.

1.2 TWIN FILTER UNITS

Designed for use in heavy-duty applications requiring in-built redundancy. Design and Properties:

� The filter systems are of robust design suitable for deployment in a diverse range of applications.

� Filter screen elements can either be surface filtration: i.e. Wedge-Wire or Sintered Wire Metal Cloth Filter media, or depth filtration: i.e. High Porosity, Sintered Powder Stainless Filter elements, all depending on application requirements.

� The filtration process flows outside→inside, so that particle retention occurs on the filter screen element’s surface.

� Particle removal by means of gravitational and/or through back flushing capabilities.

� Screening performance defined by optimized aperture size, permeability, and particle retention capability.

� Redundant spare capacity allows for uninterrupted filtration. � Aperture range available from 0.5µm (micron) upwards. � Superior mechanical strengths achieve high permeability with low-

pressure drop. � The Twin Filter Unit can be maintained without specialist tools. � No filter screen element disposal problems. � Easy removal and cleaning of filter screen element. � Minimum particle loss. � Suitable for all fluid screening applications. � Maximum operating temperature limited by seal gasket properties. � Materials for Twin Filter housing either Carbon Steel, AISI 304, AISI 316L and Special Alloys to suit

application environment. � Materials of filter screen elements AISI 316L, or C-276 Hastelloy. � A TWIN FILTER UNIT comprises of 2 housing units containing either single filter screen element, or an

array of multiple filter screen elements in each. Joined at inlet & outlet by 2 x 3 Way Valves, to suit and flanged to ANSI B16.5, BS4505 or customer requirements. One side filter screen element/s is/are operational, the other redundant, acting as spare capacity. When indicators show operational unit efficiency decreasing, operator switches 3 way valves, and spare capacity unit becomes operational, allowing particle removal by means of gravitational, and/or by means of back flushing capability.

Applications: Mining Oil recycling in crusher plants.

Rinsing & de-watering slurry processes.

Petro-chemical Candle filters for process filtration of resins, waxes, lacquers & caustic solutions.

Paint & Varnishes Process filtration.

Sugar industry Process filtration of molasses.

Paper & Pulp Water recovery & filtration of liquids.

Food & Beverage Water treatment & clarification filtration. Calculation Data required:

� What needs to be filtered? � Flow in Liters per hour (L/hr). � Viscosity.

� Operating pressure. � Operating temperature. � Particle types and size.

For us, quality means developing products adapted to the client’s requirements.

Digital – Prototyping of SD Duplex Filter

1.3 WEDGE WIRE SCREEN CYLINDER STRAINERS & ELEMENTS

Robust and versatile for multi-faceted applications in demanding production environments Design & Properties:

� Wedge wire screens are made from bars of profiled or specially shaped wire. This enables them to be used in a very versatile range of applications.

� Wedge wire filters offer superior mechanical strength and finer apertures = optimum open area.

� Slot opening, open area and apertures per linear dimensions may define screening performance.

� Surface filtration optimizes longer operational efficiencies. � The wedge taper shape reduces clogging and screen wear when

abrasives are present in the slurry. � Sizes start from 23 mm diameters OD. � Apertures from 0,01 mm. � Material AISI 316L and C-276 Hastelloy.

Applications: Mining Elution Column Strainers for gold recovery in Carbon

in Pulp (CIPCIPCIPCIP), and Carbon in Leach (CILCILCILCIL) processes. Dust removal in the coal and coke industries. Rinsing & de-watering slurry processes.

Petro-chemical Candle filters for process filtration of resins, waxes, lacquers & caustic solutions.

Paint & Varnishes Process filtration.

Sugar industry Process filtration of molasses.

Paper & Pulp Water recovery & filtration of liquids.

Water-Treatment & Sewerage Intake screens, particle removal & sludge filtration.

Food & Beverage Water treatment & clarification filtration. Calculation Data required:

� What needs to be filtered? � Flow in Liters per hour (L/hr). � Viscosity.

� Operating pressure. � Operating temperature. � Particle types and size.

For us, quality means developing products adapted to the client’s requirements.

1.4 SINTERED WIRE CLOTH FILTER MEDIUM

For deployment in special application environments requiring high flow rates & apertures <50µm

Design & Properties: � A plate-type filter medium consisting of up to five layers of wire cloth sintered together under heat

and pressure. The different layers are so arranged as to obtain an optimum combination of strength, filter rating, and flow rate and backwashing properties.

� Made from weavable materials: AISI 304, AISI 316, and Hastelloy C-276.

� Filtration down to 5 µm (microns) absolute. � Sintered wire cloth offers exact filtration of gaseous, liquid and solid substances and shows

substantially 1. Higher mechanical stability 2. Increased rigidity 3. Easier malleability. 4. Maximum flow rates. 5. Excellent cleaning. 6. Excellent heat, corrosion & pressure resistance.

� Void rate (open area) 35% plus. � Sintered wire cloth has unique properties and is used for many applications in various industrials

fields requiring filtration of highly viscous liquids; pressure-vacuum filters; centrifuges, fluid beds, silo-aeration, biotechnology.

Applications: High Polymer Industrial use. High viscosity polymer filter fiber, film, fiber, and plastics.

Raw materials production filters.

Chemical Industry Process filters for chemical plants. Filters for petrochemical refineries.

Pharmaceuticals, Food & Beverage Industry

All types of pharmaceutical products. Food synthesis and production. Crystallization/recovery filters.

Aviation, Marine, Machinery

Filters for fuel oil, lube oil, hydraulic power line oil, cutting oil.

Others. High temperature exhaust gas-processing filters, oil mist separators.

Calculation Data required: � What needs to be filtered? � Flow in Liters per hour (L/hr). � Viscosity.

� Operating pressure. � Operating temperature. � Particle types and size.

For us, quality means developing products adapted to the client’s requirements.

1.4.1 Poremet Design: The standard Poremet is a plate – type filter medium consisting of five layers of wire cloth

sintered together under heat and pressure. The different layers are so arranged as to obtain an optimum combination of strengths, filter rating, and flow rate and backwashing properties.

Technical Data:

Materials: AISI 316L / DIN 1.4404, HASTELLOY C-276 /DIN 2.4819. Explanation of Technical Data:

Nominal filter rating: Approximate value for cake filtration. Absolute filter rating, determined by glass bead test. Shear strength ζs determined by stamping. {Related to cross-sections

(thickness x stressed length) Breaking strength бs. Yield point бs at 0.2% elongation.

Advantages and applications:

Compared to single – layer metal filter cloth, Poremet shows substantially: Higher mechanical stability Increased rigidity Easier malleability

Poremet

Filter Rating µm 1. nominal / 2. absolute

3. Thickness mm

4. ζs N/mm²

5. бs N/mm²

6. Elongation %

7. бs N/mm²

8. Void-space %

9. Weight g/dm²

2 < 2 5

1.6 to 2.0 220 to 230

100 to 130

10 to 15 55 to 60

35 90 to 92

5 5 10

10 10 15

15 15 20

20 20 25

30 30 35

40 40 50

1.8 to 2.2 230 to 240

50 50 60

60 60 75

1.4.2 Absolta Design: Similar to Poremet, Absolta is a laminated sintered product having maximum flow rates and

excellent cleaning and backwashing properties.

Technical Data:

Absolta Type 3: Consists of 3 sintered mesh layers and is available with 100, 200 and 300 µm filter rating. Materials: DIN 1.4404/AISI 316L, DIN 2.4819/HASTELLOY C-276. Explanation of Technical Data:

Nominal filter rating: Approximate value for cake filtration. Absolute filter rating, determined by glass bead test. Shear strength ζs determined by stamping. Related to cross-sections

(thickness x stressed length) Breaking strength бs.

Yield point бs at 0.2% elongation.

Advantages and applications:

Due to its optimized flow and backwashing properties, Absolta is preferably used for the filtration of gases and liquids. Absolta as well as Poremet can be produced with a variety of support meshes and screens so that an enormous loading capacity can be achieved.

Calculation Data Required: � What needs to be filtered? � Flow in Liters per hour (L/hr). � Viscosity.

� Operating pressure. � Operating temperature. � Particle types and size.

For us, quality means developing products adapted to the client’s requirements.

Absolta

Filter Rating µm 1. nominal / 2. absolute

3. Thickness mm

4. ζs N/mm²

5. бs N/mm²

6. Elongation %

7. бs N/mm²

8. Void-space %

9. Weight g/dm²

15 15 20

2.5 to 3.0 120 to 130

45 to 55

10 to 15 25 to 30

62 88 to 90

20 20 25

30 30 35

40 40 50

2.8 to 3.5 130 to 140

50 50 60

60 60 75

1.5 HIGH POROSITY, SINTERED POWDER STAINLESS FILTER ELEMENTS

A robust & versatile depth-filtration solution for applications requiring high flow rates, & apertures <50µm

Design & Properties:

High Porosity, Sintered Powder Stainless Filter Elements are manufactured by an isostatic compaction process of powdered metallurgical materials, and then sintered in a process of bonding the powdered metallurgical particles by fusing together at temperatures well below their melting point. After sintering, regardless of micron size, the separate grain structure of the original powdered metal becomes fully interlinked to form a rigid part. Sintering gives the high porosity material the shape, stability and property of a strong metal component. These materials can be used as self-supporting structural elements. The pores after the sintering process are mechanically fixed with respect to both size and position, and result in the following important properties:

• Shape-stability, i.e. self-supporting structural elements suitable for high differential pressures and pressure swings.

• Particularly good properties under compression, vibration and changing conditions or with high-pressure impulses.

• High heat resistance and thermal stability up to 950ºC.

• High permeability with low-pressure drop.

• Precise filtration because pore size and distribution are exact and uniform.

• Chemical resistance against acids and caustic solutions in various ranges of pH.

• Back flushing and easy cleaning with supersaturated superheated steam, chemical solvents, thermal processes and ultrasonically.

• The variety of materials used is weld able, solder able and machine able. Applications:

Chemical Industry Catalyst separation and recovery. Refinery applications. Gas and Liquid separation.

Aviation, Marine, Power, Machinery Filters for fuel oil, lube oil, hydraulic power line oil, cutting oil.

Food & Beverage Industry Food synthesis and production. Crystallization/recovery filters.

Pharmaceutical process, Environmental technology

Sparging Fluidization. Air bearings for polymer sheet production. Silencing.

Technical Data: A substantial range of filter elements is available as tubes, cartridges, with or without end-fittings, connections is available. Aperture size from 0.5 µm to 200 µm (micron). Sizing to application specific customer requirements. Materials:

• AISI 316L (Din 1.4404)

• C-276 Hastelloy Special materials available on request. Calculation Data Required:

� What needs to be filtered? � Flow in Liters per hour (L/hr). � Viscosity.

� Operating pressure. � Operating temperature. � Particle types and size.

For us, quality means developing products adapted to the client’s requirements.

Satisfied customers operating with Syntechnik Designs filtration products:

African ProductsAfrican ProductsAfrican ProductsAfrican Products Tongaat HulettTongaat HulettTongaat HulettTongaat Hulett AfroxAfroxAfroxAfrox

Ametis ProjectsAmetis ProjectsAmetis ProjectsAmetis Projects Anglo Gold AshantiAnglo Gold AshantiAnglo Gold AshantiAnglo Gold Ashanti BarbeBarbeBarbeBarberton Minesrton Minesrton Minesrton Mines Blyvooruitzicht GMBlyvooruitzicht GMBlyvooruitzicht GMBlyvooruitzicht GM

Crown Gold RecoveriesCrown Gold RecoveriesCrown Gold RecoveriesCrown Gold Recoveries GoldplattRecoveryGoldplattRecoveryGoldplattRecoveryGoldplattRecovery

Henkel SAHenkel SAHenkel SAHenkel SA Hydro Power Equipment Hydro Power Equipment Hydro Power Equipment Hydro Power Equipment Kayelekera UraniumKayelekera UraniumKayelekera UraniumKayelekera Uranium

Langer Heinrich UraniumLanger Heinrich UraniumLanger Heinrich UraniumLanger Heinrich Uranium Oxus GoldOxus GoldOxus GoldOxus Gold

Rössing UraniumRössing UraniumRössing UraniumRössing Uranium Sasol TechnologySasol TechnologySasol TechnologySasol Technology/Wax/Infrachem/R&D/Wax/Infrachem/R&D/Wax/Infrachem/R&D/Wax/Infrachem/R&D

Sundays River Citrus CompanySundays River Citrus CompanySundays River Citrus CompanySundays River Citrus Company

Data Sheet: In order to find a solution to the filtration problem, we require the customer to furnish us with as much application specific data as possible. Please take the time to complete the data sheet below, and either e-mail, or fax through to us. Thank you!

Calculation Data for Filter Screen Elements Comments

Customer:

Contact Info:

Date:

What needs to be filtered:

Flow in Liters per hour (L/hr):

Viscosity:

Operating pressure:

Operating Temperature:

Particle Size & Type:

Filter Housing Specs: Line Size, Flanged, Screwed, Motorized or manually operated etc:

Every care has been taken to ensure that technical data and information are as complete and accurate as possible at the time of publication.

Applications suggested for the materials & designs of filtration equipment, are solely to permit the reader to make his or her own evaluation

and decision, and are neither guarantees, nor are to be construed as express or implied warranties of fitness for these or other applications. It

is the company’s policy to continuously improve its products. Therefore the right is reserved to make, without prior notice, alterations in design

and manufacture that the company may deems necessary.

Publication: 01.01.2004

Copyright: © November 2003

Syntechnik Designs cc.