Arao and Arav are fully automatic yarn package high flowrate dryers at atmospheric pressure conceived to load directly the dyeing carriers coming from dyeing machines, after hydroestraction.
The dryer performs the final drying of yarn packages after a preliminary centrifugal hydroextraction.
They are normally used to dry several types of yarns without practical limitations in:
Yarns can be of cotton, acrylic, wool, polyester, rayon and blends in form of cylindrical, conical, biconical, compressible packages.
Arao and Arav dryers are rated to operate at atmospheric pressure with a high Dp and flowrate in order to reduce the drying time and to obtain the best quality in the subsequent yarn working processes.
ALL OPERATIONS ARE PERFORMED IN A OPEN AIR CIRCUIT consisting of:
Electric control panel with PC for fully automatic operation.
The complete drying operation is performed automatically after hydroextraction by centrifuge.
The drying process duration is controlled automatically by means of:
The device is conceived to operate as below:
This system avoids any risks of over or poor drying, typically linked to traditional drying systems such as those of pre set end of cycle, or control of final temperature rate when air is eliminated through exhaust air circuit.
The using of the open loop circulation system consists of the following items in sequence: