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Low velocity, High pressure system. Pressure or Vacuum. This design is typically used to minimize wear or to minimize product degradation.
In operation an inlet and vent valve open to fill the transporter. When a high level indicator is reached, the inlet and vent valve are closed. The transporter is pressurized, from 15-80 psig. When the downstream line pressure is overcome material begins flowing down the conveying line at a low velocity.
Air Boosters are used to separate the product flow, creating “slugs” of product, and aid in conveyance to the destination. WAF’s booster injects air directionally forward and circumferential to provide the best dispersion possible. Our system requires only one product conveying pipe and one source air pipe to provide dependable conveyance.
Conveyance is completed once the pressure in the transporter reaches approximately 5 psig, as this indicates that the transporter and the conveying line are empty. The inlet and vent valve are then opened and the sequence is repeated.
Options:
- Batching Transporters. Often the transporter will be weighed and used as a weigh hopper. The transporter will be filled to the appropriate weight and then conveyed with a very high degree of accuracy.
- Blending Transporters. With the addition of Whirl Air Flow’s Aeration Cone this same material, volumetric or weighed amount, added can be blended, within the transporter, before being conveyed.
- Continuous Systems. When continuous dense phase conveying is required two transporters are used in an alternating fashion. While one conveys the second unit fills. This provides the benefits of low velocity conveying with a continuous feed stream.
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