for fine-grain bulk materials with poor flowing characteristics
Dry bulk materials with fine to medium grain sizes are generally suitable for pneumatic suction conveying. In doing so, the most important job is to achieve optimal transport of the resting material from the feeding vessel. As far as bulk materials not tending towards agglutination are concerned, this can be achieved by a geometrically simple suction feeding vessel with a secondary air connection. However, bulk materials which due to their grain geometry tend towards agglutination are much more critical. With normal suction feeding vessels the pressure difference between the pipe line and the vessel usually compacts the material at the vacuum connection point. This may result in bridges at the vacuum connection which need to be crushed by mechanical effects, e.g. by a pneumatic rapper or unbalanced motor.
The ROTAFLUID suction feeding device by GEL-Verfahrenstechnik GmbH & Co. KG actively pre-vents the formation of lumps or bridges before the vacuum connection. Combining a vessel and agitator with an inclined fluidized-bed chute inside a suction feeding device allows to effectively break up lumps or bridges. The inclined fluidized bed makes sure that first the material will flow easily and second due to it’s own dead weight will run downwards into the outlet socket. Inside the outlet socket the material is aerated several times by a conveying air injector, maintaining a free and easy material flow.
For economic reasons most of the pneumatic conveying systems are featuring dense-phase conveying with the highest possible solids content which can be adjusted by a throttle fitting at the clean air inlet of the ROTAFLUID.
According to the specific material and conveying capacity the outlet socket is manufactured from DN 25 to DN 100. The ROTAFLUID conveying capacity depends on the suction capacity of the vacuum suction equipment.
The photo shows ROTAFLUID used in an FIBC dis-charge application. The FIBC is placed on the support and connected by a pneumatic connecting socket in a dust-tight manner. An annular clearance cone dosing feeder (type: RKV) also developed and manufactured by GEL-Verfahrenstechnik makes sure that the bulk material does not flow directly into the ROTAFLUID but is supplied in dosed quantities. Dosing is controlled by a level indicator within the ROTAFLUID. The ROTAFLUID and the vacum suction pulse conveyor (VSTG) are connected via a suction hose. A PLC system control covering both the ROTAFLUID and VSTG allows to discharge FIBCs fully automatically. The system displayed here is also suitable for explosive area applications.
Clear advantages for your production:
- dust-free working in an enclosed system
- low maintenance requirements
- low noise and invironmental impact
- safe pneumatic transport even of critical bulk materials
- high conveying capacities at small air flow rates
- flexible use thanks to hose lines towards the target stations
ROTAFLUID Suction Feeding
February 15, 2005
Rotafluid – a suction feeding system
for fine-grain bulk materials with poor flowing characteristics
Dry bulk materials with fine to medium grain sizes are generally suitable for pneumatic suction conveying. In doing so, the most important job is to achieve optimal transport of the resting material from the feeding vessel. As far as bulk materials not tending towards agglutination are concerned, this can be achieved by a geometrically simple suction feeding vessel with a secondary air connection. However, bulk materials which due to their grain geometry tend towards agglutination are much more critical. With normal suction feeding vessels the pressure difference between the pipe line and the vessel usually compacts the material at the vacuum connection point. This may result in bridges at the vacuum connection which need to be crushed by mechanical effects, e.g. by a pneumatic rapper or unbalanced motor.
The ROTAFLUID suction feeding device by GEL-Verfahrenstechnik GmbH & Co. KG actively pre-vents the formation of lumps or bridges before the vacuum connection. Combining a vessel and agitator with an inclined fluidized-bed chute inside a suction feeding device allows to effectively break up lumps or bridges. The inclined fluidized bed makes sure that first the material will flow easily and second due to it’s own dead weight will run downwards into the outlet socket. Inside the outlet socket the material is aerated several times by a conveying air injector, maintaining a free and easy material flow.
For economic reasons most of the pneumatic conveying systems are featuring dense-phase conveying with the highest possible solids content which can be adjusted by a throttle fitting at the clean air inlet of the ROTAFLUID.
According to the specific material and conveying capacity the outlet socket is manufactured from DN 25 to DN 100. The ROTAFLUID conveying capacity depends on the suction capacity of the vacuum suction equipment.
The photo shows ROTAFLUID used in an FIBC dis-charge application. The FIBC is placed on the support and connected by a pneumatic connecting socket in a dust-tight manner. An annular clearance cone dosing feeder (type: RKV) also developed and manufactured by GEL-Verfahrenstechnik makes sure that the bulk material does not flow directly into the ROTAFLUID but is supplied in dosed quantities. Dosing is controlled by a level indicator within the ROTAFLUID. The ROTAFLUID and the vacum suction pulse conveyor (VSTG) are connected via a suction hose. A PLC system control covering both the ROTAFLUID and VSTG allows to discharge FIBCs fully automatically. The system displayed here is also suitable for explosive area applications.
Clear advantages for your production:
- dust-free working in an enclosed system
- low maintenance requirements
- low noise and invironmental impact
- safe pneumatic transport even of critical bulk materials
- high conveying capacities at small air flow rates
- flexible use thanks to hose lines towards the target stations
For more information, please visit:
href="https://edir.bulk-online.com/profile/8758-gel-verfahrenstechnik.htm" target="blank">https://edir.bulk-online.com/profile...enstechnik.htm
Attachments
gel_verfahren_news_feb.05 (GIF)
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