Product category:
Sludge Handling and treatment
News Release from: Euroby | Subject: Bough Beech filter press
Edited by the Processingtalk Editorial
Team on 13 February 2008
Squeezing more capacity out of a filter
press
Euroby has just completed a comprehensive overhaul and refurbishment of a filter press at the Sutton and East Surrey Water Bough Beech treatment works
The original decision to install new equipment was dropped in favour of a complete reworking and upgrading of the existing system There were clear advantages to this: the frame, the most costly part of a press, and the most difficult to remove and replace was in relatively good condition, and the much shorter time to achieve the overhaul reduced capital outlay and minimised disruption to the treatment works
This article was originally published on Processingtalk on 19 Sep 2007 at 8.00am (UK)
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Paul Rothwell, managing the project for Euroby, said "An initial survey of the press by Euroby engineers revealed that the filtration surfaces of the cast iron plates were worn and corroded.
As sole UK and Ireland distributors for the Klinkau range of polypropylene plates, Euroby were able to replace the cast iron plates with the lighter Klinkau units at very low cost and in fact were able to increase the number of plates from 42 to 60!".
The new plates with smaller cavities produced instantaneous results in both increasing the dry solid content of the alum sludge from 21% to around 25%, and cutting cycle times in half from 8hours to 4hours.
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This has resulted in a realistic increase of the throughput by at least 50%, as two cycles per working day are now possible, three if necessary.
The work carried out by the Euroby mechanical and electrical engineering team included reconfiguring the press opening and closing system by the installation of powerful double-acting hydraulic rams and power pack, and upgrading the drip trays or "bomb doors" to an automatic hydraulic opening mechanism.
Operator safety has been taken care of by improved guarding and the addition of light curtains which shut down the machine if the beam is interrupted.
An essential part of the overall dewatering mechanism, the Willet ram pumps feeding the sludge to the press were given a thorough overhaul with bearings, seals and pistons replaced.
Finally, the Euroby hire team were able to ensure that the treatment plant remained operational during the upgrade works by providing - and operating- one of their fleet of self-contained mobile centrifuges to dewater the sludge.
Euroby expertise and experience resulted in an as-new filter press installation with greatly enhanced performance for a fraction of the cost of a new system.
The client Project Manager - Jeff Black - commented: "The contract was completed within 14 weeks, with no disruption to the treatment process.
The refurbished filter press has now been working since May 2007 and has given excellent performance".
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