Standard Operating Procedure FOR Operation of FLUIDIZED BED DRYER
OBJECTIVE:To define the procedure for operation of fluidized bed dryer.
SCOPE:This SOP is applicable for operation of fluidized bed dryer.
REFERENCE:In house.
RESPONSIBILITY:
- Machine Operator – To follow the procedure as per SOP.
- Production Supervisor – To ensure SOP is being properly followed.
- Production Head – To ensure proper execution of SOP.
- QA – To ensure SOP is being implemented.
ABBREVATIONS:
QA: Quality Assurance
QC: Quality Control
SOP: Standard Operating Procedure
PROCEDURE:
- Ensure that line clearance is taken from QA for cleanliness of the FBD.
- Ensure that FBD finger bag is intact and fitted properly.
- Ensure that proper earthing and bonding is provided.
- Ensure that the AHU system is ‘ON’ and working properly.
- Put ON the main switch of control panel.
- Switch ON the FBD.
- Set the minimum time for blower.
- Wait for 20-30 sec and allow blower to come into delta phase.
- Check the working of outlet damper for adequate air discharge. Allow the blower to shut off after completing the set time.
- Remove the bowl outside and check for cleanliness.
- Charge the wet material into the bowl.
- Fit the bowl properly and ensure that inlet damper of hot air is open.
- Set the drying time. Switch ON the blower.
- For air drying keep the steam inlet valve close this is at first floor.
- For hot air drying set the inlet temperature and open the steam valve.
- Shake the bags after every 15-20 minutes of drying operation as per setting done on control panel.
- After drying close steam inlet valve, keep on air drying to cool the material.
- After completion of blower set time, blower will stop. Then shake the bag for 2-3 min and observe that no material is sticking to finger bag.
- Remove the bowl and unload the material in fiber drums / HDPE drums containing polyethylene bag.
- Keep all the supporting items in close condition at proper place and duly labeled.