Construction
La croissance urbaine est l'un des principaux moteurs de l'augmentation des besoins en projets de forage de construction. Cependant, travailler dans des zones urbanisées peut s'avérer délicat en raison des espaces restreints, des réglementations strictes et des exigences en matière de déchets et de bruit. Les solutions Alfa Laval pour l'élimination des solides et la déshydratation des boues peuvent vous aider à résoudre ces problèmes, en répondant aux normes fixées par les réglementations.
Robust compact equipment to help you lead the field in muck cleaning
- Fully customisable, cost effective wastewater treatment
- High volume capacities and compact equipment design
- Contained process resulting in good and safe working conditions
- Improved sustainability benefits – less waste, less transport, less cost
- High level of automation – minimum operator intervention
Les décanteurs centrifuges Alfa Laval peuvent être optimisés dans les moindres détails afin de garantir la meilleure séparation des solides de forage pour vos besoins.
Robustes et nécessitant peu d'entretien par rapport à d'autres technologies de séparation, elles sont parfaites pour les opérations de forage directionnel horizontal (HDD), de forage de tunnel (TBM), de forage et de dynamitage de tunnels et de forage d'exploration.
Compacts et faciles à utiliser, ils rendent vos opérations plus respectueuses de l'environnement, plus économiques et intrinsèquement plus sûres. Le fonctionnement continu permet de capturer tous les déchets tout en réduisant leur poids. Les décanteurs sont un complément viable et testé, voire une meilleure alternative aux filtres à bande et aux filtres-presses à cadre, et vous permettent d'augmenter votre capacité et vos rendements.
Dewatering drill slurries
Light, reliable and compact, Alfa Laval decanter centrifuges meet the tough separation demands of dewatering drill slurries head on. Increased drilling speed and less waste are just two of the benefits our decanters provide.
Construction waste water treatment
Tough requirements call for tough solutions. Alfa Laval decanter centrifuge delivers where you need it most. Effective separation down to a particle level meet the requirements for reusing or disposal of water. All in a smaller footprint and with less maintenance needs than other technologies.
Mixing drill slurries
Properly mixing drilling slurry is an important part of making the drilling process more effective, faster and less costly. Alfa Laval Vortex Shear-Mixers and Vortex Radial Eductors offer premium mixing results more quickly than other mixing technologies while reducing slurry additive waste and downtime.
Innovative technology for civil drilling
Alfa Laval decanter centrifuges are key to achieving high efficiency in drilling and tunnelling, especially in terms of treatment of slurries and water cleanliness. The technology efficiently removes most of the fine particles that traditional slurry treatment equipment cannot without resorting to polymer use. Specifically designed for construction sites and tunnelling environments, the Alfa Laval decanter centrifuges excel at handling abrasive and coarse particles and can process large volumes of feed solids and various flow rates.
The decanter centrifuges are available with a range of modules ideally suited for every kind of solids separation job. They range from fully automated operation to simple “hands-on” capabilities. Whichever you choose, you can look forward to effective solutions to your separation needs for many years.
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How it works - decanter
The rotating assembly is supported on a compact welded box beam frame with main bearings at both ends. The in-line main motor is flange- or foot mounted onto the unit with adjustable brackets for belt tension adjustment. The bowl is driven at the conical end by an electric motor with a V-belt transmission. The bowl, conveyor, casing, inlet tube, outlets and other parts in contact with the process media are made of AISI 316 or duplex stainless steel with tungsten carbide inserts in the areas most susceptible to wear.
Separation takes place in a horizontal cylindrical bowl equipped with a screw conveyor. The feed enters the bowl through a stationary inlet tube and is accelerated smoothly by an inlet rotor. Centrifugal forces cause sedimentation of the solids on the wall of the bowl. The conveyor rotates in the same direction as the bowl, but at a different speed, thus moving the solids towards the conical end of the bowl. The design enables the decanter to scroll out high loads of solids without blockages caused by high levels of dryness. Only the very driest fraction of the sludge cake leaves the bowl through the solids discharge openings into the casing.
The decanter centrifuge can be adjusted to suit specific requirements by varying the bowl speed, the conveying speed, the pond depth and the feed rate
Product portfolio
LYNX construction drilling decanter
Alfa Laval LYNX centrifugal decanter systems are made for muck handling. They efficiently remove solid particles from water and oil-based slurries resulting in better penetration rates, shorter drill times, less wear on key components as well as longer sludge service life. It also reduces chemical usage as well as drill waste, which contributes to lower disposal and waste water treatment costs.
Normally installed in a bypass system, our LYNX centrifugal decanters operate continuously without interrupting drilling operations. The range can handle muck flow rates from 5 m3/hour up to 100 m3/hour. The variable bowl speed ensures the right G force required for the most efficient separation while the conveying speed can be adjusted for optimal balance between liquid clarity and solids dryness. The adjustable pond depth also contributes to the best balance between clarity and dryness.
Product information LYNX
Ease of operation and high uptime
- Developed specifically for the tunnel boring and construction industry
- Small footprint – easy installation and mobilization
- Continuous and automatic operation with option of remote surveillance
- High separation efficiency – clean slurry improves drill penetration rate
- Highly sustainable cleaning capacity – less waste due to dry cake and reused slurry
Stay ahead, save costs and boost sustainability
If you are looking for ways to raise profitability and meet ever more stringent environmental requirements in drilling and tunnelling operations, contact Alfa Laval today to learn more about how our proven, sustainable muck cleaning solutions can save you money and take your business to new levels of excellence.
