Product-Friendly and Low-Mix Conveying over Long Distances

The Dense Phase Conveying System FPD is used for conveying bulk materials over distances of up to 200 m. Due to the low conveying speed, the system operates very product-friendly. Even the most difficult products can be conveyed safely and segregated. The delivery capacity depends on the product, the pipe diameter, and the conveyor distance and is up to 10 t / h. Due to the fluidization bottom installed in the sender, even the most difficult bulk material can be conveyed.

Functional principle:

At the beginning of a delivery cycle, the product is filled into the sender and the inlet valve is closed. By injecting compressed air the pressure rises to the pre-set value at which the discharge valve opened. By pulsed injection of the conveying air in the delivery line, directly behind the outlet valve, product plugs are formed, which are conveyed at a low speed towards the receiving container. After the sender is emptied and vented, the inlet valve is opened and a new delivery cycle can begin.

If a continuous conveying of the product is needed, two senders of the Dense phase Conveying System FPD are placed side by side. The filling and emptying of these two senders takes place alternately: while the one sender is filled, the other is emptied. Depending on the product and the conveyor distance, it is necessary to inject air into the delivery line at several points in order to divide long conveying plugs and thereby prevent clogging.