DGF - Pneumatic vessel conveyor

Hellmich Rauchgasreinigung, Entstaubungstechnik und Anlagenbau

The transport system is started up automatically once the dedusting equipment is operating, or by a reception silo request. The conveyed material is transported to the pressure vessel via conveying equipment (pipe screw conveyor, rotary gate valve or similar). The conveying equipment switches off once the built-in level indicator indicates maximum fill level. After a delay period, the cone valve or flap closes off the filling opening. The vessel is pressurised by two compressed air connections with upstream solenoid valves. The transport process starts immediately after compressed air is introduced. The pressure switch is activated after a delay period, which then stops the conveyor process when the pressure falls. Both compressed air solenoid valves are then closed. After a further delay period which can be set to match the appropriate conveyor route, the pneumatic cone valve or the pneumatic flap opens. The residual pressure needs to be fed back to the filter unit. The transport system is switched on by a limit position switch at the cylinder, and the new filling process starts. The transport route can be up to 150 m long, even longer if injector nozzles are used.

Benefits at a glance:

  • continuous automation of dust transport
  • low maintenance costs
  • simple, space-saving construction
  • transport also to difficult-toaccess locations

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