Solids-retaining centrifugal separator for biodiesel processing

Product catalog summary

Applications
The BDB 104 centrifugal separator is designed for biodiesel production, specifically for removing water from methylester during water washing stages.

Standard Design
The separator features a frame with a horizontal drive shaft, worm gear, and vertical bowl spindle. The worm gear is in an oil bath, and the bowl is mounted on the spindle. The frame hood, which includes feed and discharge systems, is hinged for easy cleaning. The separator is ATEX category 3 approved for electrical safety.

Basic Equipment

Methylester inlet and outlet devices with sight glass
Water outlet spout
Liquid seal inlet
Set of gravity discs
Revolution indicator
Set of resilient mountings

Options
The centrifuge can be ordered with or without built-in pumps for feed and discharge. Optional extras include a cover-interlock kit, a set of tools, service kits, and stand-alone pumps.

Technical Documentation
Each separator comes with comprehensive documentation, including an Instruction Book, Maintenance and Repair Manual, and Spare Parts Catalogue.

Operating Principles
The feed enters the rotating bowl from the top, is accelerated by a distributor, and enters the disc stack for separation. Water and solids move to the bowl wall, while methylester moves to the center and exits through an outlet.

Technical Specifications

Throughput capacity: 1.0 m3/h (4.4 US gpm)
Motor power: 2.2 kW (3 hp)
Feed temperature range: 0–100 °C (32–212 °F)
Sound pressure: 78 dB(A)

Dimensions
Approximate dimensions are 767 mm x 1090 mm x 950 mm.

Material Data

Bowl body and hood: EN 1.4462 / UNS S31803
Lock ring: EN 10025 / AISI 1035
Distributor and discs: EN 1.4401 / ASTM 316
Gaskets and O-rings: Viton

ATEX Design Codes
Electrically safe for Zone 2 and Zone 22.

Shipping Data

Net weight: 196 kg (432 lbs)
Gross weight: 252 kg (556 lbs)
Volume: 1.1 m3 (39 ft3)

Catalog excerpts

Solids-retaining centrifugal separator for biodiesel processing-1

Solids-retaining centrifugal separator for biodiesel processing BDB 104 Applications The BDB 104 is specifically designed for use in the production of biodiesel and is particularly suitable for water removal from methylester in water washing stages. BDB 104 Standard design The solids-retaining separator comprises a frame with a horizontal drive shaft, worm gear and a vertical bowl spindle in its lower part. The worm gear is placed in an oil bath. The bowl is fixed on the top of the spindle inside the space formed by the upper part of the frame and the frame hood, which also carries the feed and discharge systems. The frame hood is hinged to enable easy access for cleaning the bowl, which is of the solid wall disc type. The machine is electrically safe and approved for ATEX category 3 Basic equipment - Methylester inlet device. - Methylester outlet device with sight glass. - Water outlet spout. - Liquid seal inlet. - Set of gravity discs. - Revolution indicator. - Set of resilient mountings. Options The centrifuge can be ordered either with or without a built-in pump for both feed and discharge liquids. Optional extras Cover-interlock kit to eliminate the risk of starting the centrifuge unless it is properly assembled. Set of tools. Different service kits are available for maintenance of the centrifuge. Stand-alone pumps for both feed and discharge. Technical documentation Complete information and documentation accompany each separator delivery. The Instruction Book provides detailed operating instructions and advice on obtaining optimal separation. The Maintenance and Repair Manual describes dismantling and reassembly of the separator. The Spare Parts Catalogue facilitates the ordering of spare parts.

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Solids-retaining centrifugal separator for biodiesel processing-2

Operating principles The feed is introduced to the rotating centrifuge bowl from the top (1) and is accelerated in a distributor (2) before entering the disc stack (3). It is between the discs that the separation takes place. The water and the heavier solids are forced towards the bowl wall where the solids accumulate and the water proceeds over the top disc (4) to an open outlet (5). The methylester moves towards the center and leaves the bowl through an open outlet (6). PCHS00008EN 0603 How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on...

Open the catalog to page 2