Spirotech has recently designed, manufactured and installed two large diameter silos for a major worldwide chemical producer, in this instance for the production of rat poison.








The system designed by Spirotech comprises of two storage silos for wheat and flour, each with a storage capacity of 50m3 and suitable for bulk tanker filling by pressurised road tankers utilising an on-board blower.
ATEX rated equipment a vital necessity
Each silo is fitted with a reverse jet cleaned filter unit for venting the tanker conveying air and a pressure transmitter to monitor internal pressure. Installed on load cells, which provide a continuous indication of silo contents together with the facility for high and low level interlock set points, the silos are also fitted with a silo auto shut-off system to prevent dust emissions to atmosphere via the pressure relief valve on top of the silo. As the product being handled and stored is capable of forming explosive atmospheres due to the presence of combustible dust in cloud form, the silos are equipped with explosion protection in the form of explosion venting at roof level and all ancillary equipment and instruments fitted to the silos are ATEX certified.
Each storage silo is also fitted with a discharge aid by means of a vibratory bin activator to assist with discharging the product and transfer from each silo to the existing mixer is via a tubular type screw conveyor.
With safety in mind
With safety always at the forefront of any project that the Spirotech team undertake, a stair tower was provided in place of an access ladder to access the silo roofs from ground level in order to reduce the risk of working from height.
Contact Spirotech
Spirotech’s team of designers, engineers and installers handle some of the most demanding and challenging projects worldwide. Please call our sales team for more information about how Spirotech Group can help your business.
You can speak with our Sales team on +44 (0)1487 832 053 or email: sales@spirotechgroup.co.uk


