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Dense Phase Pressure Conveying Systems generally use compressed air at above 1 Bar g to push materials from a Pressure Vessel (also known as a sender unit or pressure pot) through a pipeline to the destination where the air and product are separated by a filter or other system. The product extrudes through the pipeline, initially at low velocity, and gradually accelerating towards the destination. |
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>> Systems generally operate on a batch basis as follows: (simplified) << |
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A panel of valves and sensors are used to control the air pressures and velocities at all parts of the system to ensure smooth reliable conveying of the product. |
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Dense Phase Pressure Conveying Systems are particularly suitable for systems, which convey materials at high capacities over long distances, to multiple destinations. Most systems include several air control valves and the high pressure compressed air supply is able to overcome the pressure drop generated by the most difficult materials, while also providing controlled conveying for friable materials. The lower convey velocities also extend the service life for systems conveying abrasive materials. |
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| Convey Rates : |
High, up to 100 tonnes/hr or higher |
| Convey Velocities : |
Low, 1-10 m/s |
| Convey Distances : |
High, up to 500m or longer |
| Air Mover : |
Compressor (Screw, rotary, reciprocating) |
| Operating Pressure : |
Up to 8 Bar g |
| Material/Air Ratios : |
high, up to 150 kg/kg |
| Note All values approximate, refer Nu-Con for advice about how to convey your product. |
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To
optimise the system various techniques are used to reduce compressed
air consumption and cost, and additional options for specialised
applications are available: |
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