Inspection and maintenance of fluidized spray dryers in daily work

- Jul 05, 2019-

Fluidized spray dryers are widely used in the liquid process forming and drying industries and are suitable for the production of powdered, granular solid products from solutions, emulsions, suspensions and pasty liquid materials. Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet exact standards.


After a period of operation, we need to carry out the necessary inspection and maintenance of the fluidized spray dryer. For the feeding system, check the filter, pipe, valve, nozzle, etc. to see if there is any blockage, regular cleaning, check the nozzle wear condition for timely replacement. The material pump should be checked for oil leakage, whether the pressure is normal, and whether the oil level is normal.


For the fan, check whether the shaft and the bearing are short of oil and heat, whether there is vibration or noise, etc. If necessary, clean the blades and balance the blades. For the heater, check whether the heat pipe is normal, and if necessary, clean the filter of the oil pipe, oil pump and grease nipple. In addition, you should also pay attention to whether the motor has heat, vibration, abnormal sound, etc., whether the instrument and electrical appliances of the control cabinet work normally.