Decanter Centrifuge Scroll Conveyor
The decanter centrifuge scroll conveyor is the critical inner component responsible for continuously pushing accumulated solids toward the bowl’s discharge ports. Operating under extreme mechanical stress and rotational differentials, the efficiency of the scroll directly determines the overall throughput and dry cake clarity of your industrial centrifugation system.
SEPARATECH designs and manufactures heavy-duty decanter centrifuge scroll conveyor that withstand severe abrasion, chemical corrosion, and high-torque operations, ensuring uninterrupted 24/7 solid-liquid separation.
What is Decanter Centrifuge Scroll Conveyor?
The scroll conveyor, conveyor screw, is in the form of an Archimedean screw. fitting inside the beach and bowl between the two end hubs. with a small clearance of less than 2 mm radially. It has a number of functions. Not only does it convey the solids, after they form a cake. along the cylindrical bowl section and up the beach, it also accepts the feed and accelerates it up to bowl speed.
In its simplest form, the scroll conveyor has a cylindrical central hub with a set of flights welded onto it, to form one continuous helix. The conveyor screw bearings and associated seals are housed in both ends of its central hub. Somewhere in between the bearings will be a chamber called the feed zone, sealed and isolated from both bearings.
Conveyor flights are available in a variety of configurations. The flights may be single lead or double lead. The pitch may be fine or coarse, the flights may be perpendicular to the centre line or they may be canted (inclined).
The traditional conveyor design has helical flights without any cut-out (full flight). Some conveyors are quasiaxial flow conveyors, i.e. conveyors with openings named windows in the flights near the conveyor hub allowing liquid to flow in an axial direction. This type of conveyor is mainly used in applications where the layer of sedimented solids is kept very deep in order to achieve the highest possible dry matter content. This leaves little room for the liquid which can ‘escape’ through the windows. Windows are often used in connection with a baffle disc. Some conveyors have a double cone. By reducing the flight height in the area around the cone-cylinder intersection solids conveying is enhanced and wear is reduced in several applications.
Premium Tungsten Carbide Hardfacing: Built for Extreme Abrasion
To combat premature wear on the decanter centrifuge centrifuge scroll flights when processing highly abrasive materials, SEPARATECH applies an advanced Tungsten Carbide Hardfacing process as a standard manufacturing configuration.
- Unbreakable Metallurgical Bond: Utilizing a precise spray-and-fuse process, the tungsten carbide overlay fuses completely with the duplex stainless steel substrate.
- 3-5X Extended Operational Lifetime: The ultra-hard protective barrier prevents erosion on the flight outer edges, significantly reducing maintenance downtime.
- Lowest Total Cost of Ownership (TCO): High wear protection keeps the screw running at peak efficiency for longer cycles, maximizing your factory’s ROI.
Optimized for High-Solids and Heavy-Duty Separation Plants
Our decanter centrifuge scroll conveyor solutions are widely implemented globally across diverse demanding sectors:
- Chemical & Mineral Processing: Reliable separation of fine crystals, potash, catalysts, and calcium carbonate.
- Edible Oil & Fats Refining: Highly efficient clarification for palm oil, animal fats, and seed oil extraction.
- Environmental Wastewater Treatment: High-torque dewatering of industrial sludge and municipal sewage.
Custom Centrifuge Scroll Manufacturing to Fit Your Industrial Standards
As a dedicated decanter centrifuge scroll conveyor manufacturer, we provide custom-engineered solutions tailored to your specific process parameters and fluid characteristics.
| Feature / Parameter | SEPARATECH Engineering Specifications |
|---|---|
| Primary Application | Industrial Wastewater Sludge, Edible Oil Clarification, Chemical Processing |
| Base Materials | High-grade Duplex Stainless Steel (316L, 2205, 2507 SAF) |
| Wear Protection | Tungsten Carbide Hardfacing (Spray-and-Fuse) / Replaceable Tiles |
| Balancing Standard | Dynamic Balancing up to G2.5 for High-Speed Centrifugation |
| Pitch Designs | Single, Double, or Variable Pitch configurations optimized for cake dryness |
Looking for a reliable, wear-resistant decanter centrifuge scroll conveyor supplier for your new project or plant optimization? Speak directly with our technical sales managers at SEPARATECH.