Articles & Case Studies

Storage silos for SNF

Posted: Tuesday 21st February 2012

Portasilo has been awarded a contract to supply two skirted Polymer storage silos for SNF Chemicals at United Utilities Waste Water Treatment Works in Manchester.

The silos will be manufactured from mild steel and designed to store 25Tonne of polymer. Each silo will be fitted with a filter unit, differential pressure switch, pressure vacuum relief valve, high level probe, explosion vents, loadcells, Rotoflo discharger, dehumidifier and will be fully equipped to allow the safe filling of the silo by pressurised road tankers in compliance with the latest requirements of the HSE by utilising our silo fill panel and ground level test system.

The main challenge for Portasilo with this project was to ensure that it conformed to United Utilities requirement for a ‘Mass flow’ design to avoid stagnant zones in the silo and negate the use of aeration and vibration devices from the system.

It was achieved by offering the low profile Rotoflo discharge unit with a steep 40 degree included angle cone to minimise preferential flow and the formation of stagnant zones within the silo.

The scope of supply for Portasilo was design, supply, delivery, mechanical installation and commissioning support.




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