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Spiral Dewaterers

Spiral Dewaterers

Spiral Dewaterers

Product catalog summary
Overview: The Metso Spiral Dewaterer is designed for optimal dewatering of slag and mill scales, commonly used in the steel industry. It features an open trough with a transport spiral for continuous removal and dewatering of coarse materials.
Specifications: All models have a spiral diameter of 600 mm. The spiral flights are welded to the shaft, with high chrome iron wear shoes bolted to the flights. The submerged bearing assembly is grease-purged and requires lubrication every two weeks. A hydraulic spiral lifting device is optional.
Operation Principle: The spiral dewaterer operates by evenly distributing inlet flow through a feed distributor. Coarse materials settle and are transported by the spiral, dewatered by drainage, and discharged into adjustable bins. The system can handle high flow rates with low to moderate solids content.
Design Features: The tank area is larger than spiral classifiers, allowing for high flow applications. Lamella plates can be added to increase sedimentation area. An oil skimmer is available for applications with oil and grease in the feed.
Installation and Maintenance: Delivered as a prefabricated unit, it requires only power and pipe connections post-erection. The discharge launder is adjustable for positioning over bins. Service platforms and stairs are optional.
Technical Specifications: Models range from SD 60-8 to SD 60-100, with settling areas from 8 to 100 m² and flow rates up to 1600 m³/h. Power requirements range from 1.5 to 24.4 kW.
Contact Information: Metso Corporation and its subsidiaries are located globally, with contact details provided for offices in Finland, Sweden, USA, South Africa, Australia, India, Peru, Chile, and Brazil.
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Catalog excerpts

Spiral Dewaterers-1

Spiral dewaterer Optimal for dewatering of slag and mill scales

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Spiral Dewaterers-2

Spiral dewaterer – optimal for dewatering of slag and mill scales Metso spiral dewaterer consists b ­ asically of an open trough with a ­ rrangements for collection of the products. The inlet flow is evenly spread out through a feed distributor. Coarse material settles and is c ­ ontinuously removed by means of the transport spiral. The material will be dewatered by drainage in the upper part of the spiral before discharge. The discharge launder for the dewatered material is easily adjusted between two positions, allowing alternative discharge into two ­separate bins. Washing effluents coming...

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Spiral Dewaterers-3

Feed distribution in a SD60-200. Spiral dewaterer

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Spiral Dewaterers-4

Large pool area – for high flow applications Easy to install and maintain Typically for the spiral dewaterer is that the tank area is larger than for the spiral classifiers. This enables these machines to take on high flows with limited ­ olids content, applications very common for difs ferent Industrial washing effluents. With the addition of in­ lined ­ c lamella plates in the tank this gives settling areas from 8 up to 100 ­ m2 and flow rates up to 1600 m3/h. The spiral dewaterer is generally delivered as a pre­abricated unit f complete with stairs, handrails and platforms. The larger units...

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Spiral Dewaterers-5

Spiral Dewaterer model – SD Metso spiral dewaterer model SD is a robust evolution of the spiral classifier for reliable operations in mill scale handling. The spiral dewaterer with special designed spiral and enlarge pool area is able to handle large flows of effluents, offering a well dewatered mill scale product and a clear overflow (typically 100 ppm). Lower shaft end bearing assembly Principle of lamella packs. Service platforms Optional service platforms and stairs can be provided to suit local conditions. Lamella plate packs In order to increase the sedimentation area of the tank, the spiral...

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Spiral Dewaterers-6

*60-8, 60 = spiral dia in cm (24inch) -8 = settling area 8m² (86ft²) ** With lamella plates Standard options: 1. Stairs and service platform 2. Oil skimmer 3. Manual decanter Spiral dewaterer

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Spiral Dewaterers-8

• Metso Minerals Industries, Inc. 2715 Pleasent Valley Road, York, PA 17402, USA, Phone: +1 717 843 8671 • etso Minerals (South Africa) (Pty) Ltd. M Private Bag X2006, Isando, Johannesburg,1600, South Africa, Phone: +27 11 961 4000, Fax: +27 11 397 2050 • Metso Minerals (Australia) Ltd. Level 2, 1110 Hay Street, West Perth, WA 6005, Australia, Phone: +61 8 9420 5555, Fax: +61 8 9320 2500 • Metso Minerals (India) Pvt Ltd 1th floor, DLF Building No. 10, Tower A, DLF Cyber City, Phase - III, Gurgaon - 122 002, India, Phone: +91 124 235 1541, Fax: +91 124 235 1601 • Metso Perú S.A. Calle 5 Nro. 144,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.