"user manual"
Contents
1. 13 HANDLING AND TRANSPORTATION 13 MANUFACTURER 120 1 2 14 0 15 MANUFACTURER DECLARATION AIR 15 WG TRELLEBORG SYSTEM CONCEPT Scirocco IT is a high capacity bulk handling flexible hose especially considering the neat cross section The driving force 15 actually the gratis gravity the vertically force affecting all the resting material in silo waiting for transportation Consequently this system 15 11 tended to handle down hill transportations only Further on fluidization must be continuously working over the entire transportation line to secure reliable function The silo must be correctly pre fluidized to provide and supply powder material into the hose getting the hose to expected work If the powder in the silo chute is not fluidized enough it cannot float neither be feed into the hose there will never be more material delivered from the hose than fed into it It does not necessary means that the full silo volume must be fluid ized It is in most cases sufficient to effectively fluidize the material close to the outlet open ing in an adaptive way to the actual feed requirement and as well try to avoid bridging and cavity buildup The hose ID is as said before relatively small compared to its enormou2. S amp S Dry materials The powder materials aimed for this system must be dry There are of course always a smaller humidity content naturally in powders but such content must be less than 0 2 to grant a well working function Gypsum is a natural exception as the water content here is in crystal phase which do not affect the bad way MAINTENANCE Scirocco does not contain any moving parts it does not require any maintenance at all This is valid for the hose line only Valves and other components with moving parts have to be checked and maintained accordingly suppliers instructions W TRELLEBORG DO IT RIGHT AVOID THE TRAPS e Dead zones where the material is not fluidized must be avoided Avoid dead non fluidized zones container e Humid greasy and dirty air might clog the felt casing less efficiency or malfunction Maintain good compressed air quality and a pressure at absolute lowest possible level and never exceed the maximum allowed 2 bars in the feed channels of the hose Cow bellies are strictly forbidden roller coast shape of the line will create start up problems as also smaller sections of up hill transportation is against the concept of gravity transportation e The felt and the interior materials of the hose are designed to be resistant to continuous temperatures of 90 C as well to handle some short peaks up to 110 C If the hose is subject to higher
3. Product Description amp User Manual 9CIrocco was a clever choice we just installed it and forgot it Now it has passed 7 years of reliable service however without care or maintenance WG TRELLEBORG INDEX 4 PRODUCT DESCRIPTION 5 CONSTRUCTION 5 MATERTAL 5 FLANGE DIMENSIONS PN10 6 STANDARD ACCESSORIES 9 ADDITIONAL ACCESSORIES wovssdsscecovicsscenedessweveddgutcondeeevetadesssonsdeasncdeddaspeundensevoededbacosdovsnededdesbeceseancedededeoeundes 8 6 TITON 0 0 9 ASSEMBLY INSTRUCTIONS 0 ie 9 EXAMPLE TOP FEED HOSE INSTALLATION ccc ccccccesseccececcecsecceccccoccecsececceccersereececcecserseceecs 10 EXAMPLES END FEED INSTALLATIONS 10 11 USER NN 12 GENERALE NS PRU TIONS siian r a aa enna 12 NEAN TENA I E A 12 DO IT RIGHT AVOID THE 1
4. TRELLEBORG Enclosure Manufacturer Declaration AIR CONTROL Manufacturer s Declaration in the sense of Directive 98 37 EC Annex We hereby declare that the pneumatic electrical and electropneumatic components and systems see annexes are intended for installation in a machine in the version supplied by us The components must not be put into service until it has been established that the machine in which the components are to be installed conforms to the provisions of Directive 98 37 EC and its subsequent amendments The applied harmonised standards are in particular EN 983 und EN 60204 Esslingen May 2003 Dr Eberhard Veit Director Strategic Product and Technology Management NW TRELLEBORG VA TRELLEBORG BU Fluid Handling Solutions Trelleborg Industrie SAS ZI La Combaude Rue de Chantemerle 63050 Clermont Ferrand Cedex 2 France Tel 33 0 473 258 181 Fax 33 0 473 258 217 www trelleborg com
5. lifting ability of Scirocco starts at extremely low pressures The gauge pressure con sequently should be adjusted accordingly preferably somewhere between 0 05 and 0 5 Bar Maximum allowed pressure to the feed channels of the hose is stated to be maximum 2 Bar Likewise the volume flow here is extremely low between 20 and 100 I m To obtain quick and optimum air supply calibration it is better to start with the reduction valve closed and gently start open than opposite around as a too high opening pressure could create volcano effect in the material bed Such effect does not provide the lifting function Cope with a smaller pressure drop between air control and hose Therefore adjust the valve to a gauge val ue between 0 5 and 1 Bar Keep the distance between air control and hose low if possible lt 2m to minimize pressure drop Continuously fluidization Fluidizing anspor always requires continuous fluidiza tion over the entire line length One small gap will seriously jeopardize the function The principle of continuity rules here 3 consequently the fluidizations starts already in the silo bottom with an accurate pre fluidization and must not cease before the very end of hose at reception point A professionally designed line never includes necks or areas not fluidized True fluidization will never arise from air cannons or shooters it comes from cun ningly designed elements only
6. temperature than 120 the felt surface goes glossy and the im portant porosity disappears which will jeopardize the function HANDLING AND TRANSPORTATION The hoses are normally delivered in wooden boxes either in straight lengths or curved accord ingly bending radii limitations Always when handling the hose e g transport during installation or lifting during installation please keep in mind e That bending radii below they mentioned above could affect the helix to impact the cross section negatively e That lifting the hose without support cradle also might affect the hose to kink and in worse case damage the helix and as well cut the conductive cupper wire W TRELLEBORG MANUFACTURER DECLARATION Manufacturer Name Trelleborg Industri AB Industrial Hose Division Address Johan Kocksgatan 10 Ph 0410 510 00 Herewith declares that Machine component Type Fluidizing hose Scirocco Main function Bulk transportation of powders possible to fluidize Is produced in accordance with the directives dated June 14 1989 concerning mutual approach of the members legislation regarding machines 98 37 Above mentioned machine component must not be put in service until it has been established that the machine in which the compo nents are to be installed conforms to the provisions of Directive 98 27 EC Trelleborg December 2008 Peter Larsson Manager Industrial Hose Division WG
7. RIPTION HOSE CONSTRUCTION 3 Inner tube Reinforcement Polyester cord Conductive cupper wire resting on the steel helix Steel helix Breaker cord Cover rubber Nipples for compressed air connection ga The fluidizing parts are all arranged and hidden the bottom of the hose cross section as fluidization acts vertically gravity that is Connection nipples have been integrated to the hose visible at bottom exterior They provide the air supply into the hose longitudinal main channels 3 nipples for hose dimensions 3 4 and 6 and 5 nipples for the 8 and 10 hoses The channels follow the entire length of hose and communicate through narrow choke inlets with the expansion cells or compartments These are hidden under the felt visible in the interior bottom of the hose The PA felt is a robust and wear resistant construction possible to resist material temperatures up to 120 C Please bear in mind that we do not recommend continuously running above 90 C The compressed air now travelling through main channels choke inlets and expansion cells eventually can be evenly diffused through the felt porosity The powder material starts to flow and true fluidization has been created MATERIAL amp CAPACITIES Several materials have been subject to empiric full scale testing and all test results are report ed in tables with specific figures in the booklet Scirocco Fac
8. chment calls for appropriate pre fluidization arrangements to grant continuously working fluidization watch also the important bottom fluid element actually touching the hose opening End feed hoses attached to special feed boxes here equipped with supporting fluidization elements 7 TRELLEBORG AIR CONTROL INSTALLATION Scirocco Inlet nipples Pressure regulator El socket Magnet valve Manual shut valve Pneumatic tubing Divider Pressure gauge 1 Attach the plastic tube to the Scirocco hose exterior air nipples and to multi way dis tributor unit use the quick connectors and plastic10x1 5mm tube coming with installa tion package 2 Attach the multi way distributor inlet to the air control manifold out put side Keep the distance to hose below 2 m if possible It will reduce pressure drop 3 Connect the power cable to socket of electric magnet valve Please watch power type 4 Eventually connect the compressed air feed line to input side of the air control Thread 1 7 Wa TRELLEBORG USER MANUAL GENERAL INSTRUCTIONS Clean dry air Clean dry air from a compressor is required to provide the supporting air cushion and get the hose started We do recommend the standard of compressed air described in ISO8573 1 with sub classification 3 2 3 alternatively 3 4 3 depending on lowest possible ambient tempera ture Low feed pressure The
9. idization containers for material drop stations e A simplified valve manifold to conduct pre fluidization additional components Please contact TRELLEBORG INDUSTRIAL HOSE or your local supplier for more infor mation WG TRELLEBORG INSTALLATION ASSEMBLY INSTRUCTIONS Hose inclination The ultimate inclination angle of this system is between 3 and 10 de pending on material properties and generally recommended to be evenly minus 5 Steeper angle do not provide better capacity It is important to watch the hose verticality during instal lation so the felt is positioned at vertical bottom to optimize fluidization effect The unique channel cell design of Scirocco gives certain abilities e g the hose starts without any re quirements of material counter pressure and it can be emptied without any problems at re Start minus 3 minus10 Bending radius Each size of hose has a bending radius limitation as to below table 3 Minimum bending radius 600 mm 4 Minimum bending radius 800 mm 6 Minimum bending radius 1000 mm 8 Minimum bending radius 1300 mm 10 Minimum bending radius 2000 mm A radius more narrow than they mentioned above might impact the capacity and also cause damage to the helix Points of connection Each hose is tailor made to customer specification Consequently the exact length must be a customer issue and first responsibility It 1s important that the structure o
10. pen length between A and B fully match the length of the corresponding hose as physical stretch and compression by compulsion might affect the function Suspension The installation or support of the hose is an easy issue Normally the polyester straps between the hose and a steel cable or a cable ladder is enough The distance between supporting points is recommended to approx 1 meter to maintain an evenly working downhill transportation A sudden up hill part of the line independent how short it might be 15 never OK Horizontal curves call for a reinforced support to control a correct bending radius within the tolerances stated above Potential control wire The conductive cupper wire is a safety part of the construction to protect against static electricity build up It always must be physically attached and in galvan ic contact with the end couplings to secure a proof connection and protect against sparks to be formed Coupling shell halves When re assembly the couplings please note that the shell halves marked 1 and 2 must take the same positions as originally mounted by the manufacturer WW TRELLEBORG This is likely the most common attachment of hose to load point A here shown with a pre fluidizing cone attached to the silo bottom and on top of the valve EXAMPLE TOP FEED HOSE INSTALLATION EXAMPLES END FEED INSTALLATIONS The pictures below show end feed attachment examples This type of atta
11. s capacity Conse quently the hose inlet opening is small compared with e g the well sized and square inlet of an air slide Thus it is easier to get material out of a silo with a wide opening than from a silo with a small opening The principle of fluidization does not accept any dead zones It is of importance that both in and outlet of the hose has a well working fluidization support It is in these parts obstacles normally appear especially after a stop Avoid steel necks collars pipe connections and horizontal shelves which are not fluidized Avoid also bends and reducers at reception point as it can jeopardize the function Below picture shows a generally well designed system set up with continuous fluidization from silo cone to reception box Silo bottom cone Reception container gt Fluidized silo bottom Fluidizing cone Air inlet nipples Air control Scirocco hose Rear end The hose can be manufactured for an extension trough the end coupling to avoid non fluidized zones O1 1 N TRELLEBORG 4 The Scirocco hose is from an exterior view very much the same common material han dling hose it is in fact only the external air inlet nipples disclosing the discrepancy Despite the fact that the hose does not show any wear or weakness after several initial test periods and 10 years of experience it has got the traditionally sturdy construction PRODUCT DESC
12. ts amp Figures available from TRELLEBORG INDUSTRIAL HOSE WG TRELLEBORG FLANGE DIMENSIONS PN10 Top feed flange End flange End flange Top flange Dim 00 04 s 27 200 1160 118 2 45 200 1600 76 017 8 45 47 229 180 130 18 2 45 220 180 115 8x17 45 6 285 240 179 22 2 45 285 240 156 8x217 45 8 343 295 234 22 4 30 340 295 204 8x 22 45 10 405 350 284 22 4 30 395 350 250 12 022 30 Standard dimensions flanges NW TRELLEBORG 10 420 80_ TRELLEBORG STANDARD ACCESSORIES Included Valve manifold The Air control Pneumatic tubing and quick connectors Included std accessories coming with the delivery Plastic tube 10 x 1 5 mm Quick coupling 1 4 10 mm Air control FESTO manual closing valve G 4 electrical on off valve normal power 230 V also available for 110 V AC 60Hz and 24 V DC 1 pressure regulator with gauge Thread G 4 ADDITIONAL ACCESSORIES Our experience points at highest functional safety when the system is completed with top of the art fluidizing supporting components We offer a range of reliable professionally designed standard components Fluidization elements and cones in various sizes suitable for pre fluidization Flu
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