Horisontella/lutande skruvtransportörer

Intended for the transport of difficult, materials – suitable for a wide range of moisture contents and viscosities
Shaftless Screw Conveyor Systems with U-trough

SPIRAC är den globala marknadsledaren inom slamtransport med spiral, med tusentals installationer jorden runt. Den här beprövade tekniken ger avsevärda kostnads- och driftsfördelar jämfört med alternativa metoder för slamtransport.

SPIRAC axellösa skruvtransportörer består av ett U-format tråg med en lågvarvig axellös spiralskruv som vilar på ett speciellt foder med stor livslängd

Tråget – vanligen rostfritt stål, kan också fås i olegerat stål, målat, galvaniserat eller fiber/glasfiberförstärkt plast.

Spiralen – – höghållfast mikrolegerat specialstål (HTMAS), kallformat och svetsat i flera lager vilket ger extremt hög styrka, korrosionsmotstånd och lång livslängd.

Fodret – SPIRAC Duraflo®SPX liner features integral lubricant, added hardeners and two colour wear indicator.

Egenskaper och fördelar hos axellösa spiraltransportörer:

  • Hög volymmässig kapacitet trots litet tvärsnitt 
  • Avsedda för transport av svåra, trådiga, svampiga, klibbiga, våta och klumpbildande material – lämpliga för ett brett spektrum av fukt och viskositet.
  • Lätta att sätta in i komplicerade geometrier och begränsat utrymme
  • Lågt varvtal ger slitdelarna lång livslängd
  • Helt slutna tråg stänger in lukt och stänk
  • Mycket hög kapacitet i fråga om belastning/moment
  • Låga underhållskostnader
  • Långa kontinuerliga spiraler på en enda växellåda
  • Hanterar lätt stora främmande föremål eller klumpar
  • Förlåtande drift ger brett kapacitetsområde
  • Skräddarsydda för att passa utrustning på fältet
  • Stor motståndskraft mot korrosion, vilket ger utrustningen mycket lång förväntad livslängd i de mest påfrestande miljöer

 

Technical details

  • Spiral 
    The unique design of the shaftless screw allows for higher filling rates and lower RPMs - resulting in less wear, and consequently less demands for repair and down time. The spirals themselves can be made of many different materials, however the primary material is high tensile micro-alloyed steel (HTMAS) - a special steel from Sweden with mechanical properties that deliver incredible strength to the SPIRAC spiral.
  • No intermediate or end bearings
    The more moving parts in a piece of equipment, the more faults that can occur. By eliminating intermediate and end bearings, the need for major maintenance work is reduced. It also allows for more efficient and direct transfer into another conveyor - whether that be horizontal, or inlcined.
  • DURAFLO® Type SPX liners
    SPIRAC's proprietary liner - DURAFLO® Type SPX - has been designed specifically to ensure low wear and a long life. A combination of material thickness and formulation gives DURAFLO® Type SPX its unique wearing characteristics. DURAFLO® Type SPX has been developed over many years, and is one of the key features which ensures that SPIRAC conveyors stand as the industry leader. The DURAFLO® Type SPX liner also has a built-in wear indicator with a snap-in, snap-out feature, making it as painless as possible when the time comes to replace it.
  • Totally enclosed troughs
    U-troughs are commonly made out of stainless steel, however they are also available in mild steel painted, galvanized or FRP/GRP. SPIROLINE® can be used in a horizontal and inclined configuration up to 30 degrees. All varieties are totally enclosed with elastomeric seals and gaskets, ensuring there is no spillage of the material being conveyed and that odours are completely contained.
  • Direct drive
    Further reducing the downtime and expense that comes along with regular repairs and service, SPIRAC's direct-drive design allows a clean and efficient transmission - without the required maintenance of belt and chain drives

Solutions

Product benefits

  • High volume capacity for a small cross section 
  • Intended for the transport of difficult, stringy, spongy, sticky, wet, lumpy materials – suitable for a wide range of moisture contents and viscosities
  • Complex geometries and limited space easily satisfied
  • Low RPM for long life expectancy to wear components
  • Totally enclosed troughs for odour and mess containment
  • Very high load/torque capability
  • Low maintenance costs
  • Long continuous runs on a single gearbox
  • Easily able to handle large foreign objects or product lumps
  • Forgiving operation allows for wide capacity range
  • Custom designed to match field equipment
  • High resistance to corrosion provides for very long equipment life expectancy in the harshest of conditions

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