Bag Filters
EPA Kits For Silos And Bins
The EPA Kit was developed to provide equipment which would comply with the regulations of the NSW Clean Air Act.
The complete kit consists of a number of sub-assemblies. The following description overleaf and drawing below shows the complete arrangement.
Principle of Operation
Each silo has a dedicated key for operation, thus avoiding filling errors. Contained within the control box is a test button for the high level circuit, an audible alarm, visual alarm, timer and electro-pneumatic solenoid valve for external interconnection with the fill line pneumatically operated butterfly valves.
The principle of operation is such that the delivery driver is given the required, dedicated key. Operating the key opens the butterfly valve for that silo, allowing filling to commence. Simultaneously, power is supplied to the Pulsematic filter which then cleans continuously as the silo is filled. A special control box is available to suit older shaker type filters. In the case of shaker filters, cleaning is carried out at the end of the filling period via an additional timer, included within the control box. An optional extended time periods is available for Pulsematic filters.
Upon completion of filling, the key is removed, the fill line valve closes and the filter operation stops. If during the filling procedure the silo is filled to the pre-set high level switch, the switch tilts, operating the alarm circuit for filling to stop. If filling is not terminated by turning the key off, then the fill line butterfly valve automatically closes, preventing overfilling.
Silo Saver
The Silo Saver is recommended as it provides a pressure relief valve to stop silos bursting under pumping pressure in event of failure of some item of equipment. The cost is minimal in relation to the repair of a silo.