SiloJet 27

Silo Venting Filter Unit

The Silo Venting filter unit is principally used on sealed silos to filter
the dust laden displaced air generated by the process of filling the silo
by lorry loading tankers. Cleaned air is allowed to discharge back into
the atmosphere, whilst retaining the dust on the outside surface of the
filter elements within the sealed process. Each row of filter cartridges
are continuously cleaned in sequence by a jet of compressed air
released from the header tank controlled by a reverse jet station. The
jet of compressed air rapidly inflates the inside of the filter element,
dislodging the dust cake from the outside surface.

The Silo Venting filter unit uses the same technology developed for the
Cartrijet range of filter units applied successfully on many installations
throughout the UK.

Typical applications include cement and aggregate silos in cement
batching plants, limestone and mineral silos in an animal feed plant and
flour silos in food plants.

Other applications can be applied to this filter unit providing each one
is considered on merit before selection.


Technical Specifications

Construction Of Filter Body: 4mm mild steel fully welded hot dipped galvanised construction with hinged lid to allow easy access for changing of cartridges
Filter Elements: 6 x Non woven spun bonded polyester in a pleated form forming 27m² of filter area
Compressed Air Header Tank: Certified header tank according to CE directives 87/404 & 90/488. Temperature range –10 to +55°C. Maximum pressure 8 bar. 1″ BSP connection.
Compressed Air Requirements: 8.4m³/hr @ 6 bar. Requires clean, dry oil free supply at quantity indicated to ISO8573-1 Class 1.4.1. We recommend the fitting of a pressure regulator in the compressed air line prior to the filter unit header tank to ensure that the pressure level of 6 bar is not exceeded to prevent potential damage to the filter elements. The fitting of an oil and water trap is also recommended.
Diaphragm Valves: ¾” diameter port, aluminium diecast body with nitrile seals. Pressure range 30-860 kPa. Temperature range –40 to +82°C
Sequential Controller: Solid state PCB. Two electronic timers allow adjustment for duration of pulse and interval between pulses. Voltages of 110v, 220v and 240v AC single phase 50Hz can be accepted by the board in all cases giving a 24v output to the pilot valves. IP65 Polycarbonate enclosure.

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