Fault 1: Reasons and solutions for the adhesion of wet powder to the inner wall of the main tower:
(1) The feeding speed of the material is too fast and the amount is too large, so that it cannot be completely dried. The solution is to slow down the feeding speed and quantity, and adjust the feeding pump appropriately.
(2) The operation is not performed according to the requirements in the manual, and the main tower is not heated. The solution is to increase the inlet and outlet temperature of the dryer.
Fault 2: Reasons and solutions for the existence of a large number of impurities in the product:
(1) The material of the spray dryer contains impurities, which are not filtered out during filtration. The solution is to check the air filter and replace the filter according to the situation.
(2) The purity of the material and liquid is not high. The solution is to sample and test the material and liquid to filter out the impurities in the material and liquid.
(3) There are impurities in the equipment. The solution is to regularly clean the equipment comprehensively to remove impurities.
Fault 3: The phenomenon of powder running is serious, the reasons for the low recovery rate of the product and the solutions:
(1) There is a problem with the cyclone separator. The solution is to check the cyclone separator to see if there is a gap and whether the air tightness is intact.
(2) The dust removal performance is low, and the solution is to appropriately increase the secondary dust removal.
Fault 4: Reasons and solutions for the loud noise of equipment running:
Generally speaking, the atomizing disk and bearing of the spray dryer are the main parts that generate noise, so these two parts should be checked, mainly to see whether the atomizing disk is in a balanced state, whether the bearing is working normally, and whether the lubricating oil is added correctly. , if any damage is found, it should be repaired or replaced immediately.
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