Manufacturing / Industrial • Inspections

DESICCANT REPLACEMENT

When the exit moisture content has exceeded customer requirement, but yet correct dryer operation and regeneration has been verified the desiccant may need to be replaced with fresh material. NOTE: Use only PSB Specified desiccant. CAUTION: Desiccant dust is considered a nuisance dust. Proper precautions should be taken when handling. Refer to “Material Safety Data Sheet”

TULS Dairy

03/04/2024

DESICCANT REPLACEMENT

Remove pressure and power from dryer.

Open drain port on bottom of tank to remove desiccant.

Catch desiccant in suitable container. When empty, close drain port

O Insert a long, flexible sock (plastic or cloth). With the sock touching vessel bottom, chemical may be poured into the sock while slowly retracting it to just above the fill level. This method will minimize dusting and potential breakage of desiccant from free fall onto the vessel bed screenpen fill port on top of vessel to allow filling. Refer to parts list (section XVI) for part number and amount.

Some settling may be required to fit specified amount in tank. Fill to a maximum height of the weld seam of vessel to prevent excessive pressure drop. One tank size may be used for multiple models, do not be concerned if tank is not full

Consult Material Safety Data Sheet and all applicable regulations for disposal of desiccant. Disposal of desiccant contaminated with oil or other substances may require different procedures than desiccant replaced strictly due to aging.

Follow sequence of operation (section VI) to place dryer back in service.

New desiccant will initially adsorb mercaptans. To maintain odorant at the dryer exit, slightly open bypass valve V7 during initial operation. Or open the optional mercaptans bypass valve.

Source: TULS Dairy (Community Member)