Introduction and daily problems and maintenance of pressure spray granulation drier

Spray dryer daily problems and maintenance spray granulation dryer is a device that can dry and granulate at the same time According to the technological requirements, the pressure, flow and the size of the orifice of the feed pump can be adjusted to obtain the required spherical particles in a certain proportion The pressure spray granulation drier is one of the continuous atmospheric desiccator Spray the liquid into mist with special equipment to make it contact with hot air and dry It is used to dry some heat sensitive liquids, suspensions and viscous liquids It is also used to dry fuels, intermediates, soap powder and inorganic salts The common failures of spray granulation drier are as follows: first, the reasons for the wet powder adhering to the inner wall of the main tower and the solutions: (1) the feeding speed of the material is too fast and the volume is too large, so that it can not be completely dried The solution is to slow down the speed and quantity of the feeding, and adjust the feed pump properly (2) the operation is not carried out 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 two: there are a lot of impurities in the product and solutions: (1) the pressure type spray granulation dryer contains impurities, which are not filtered during filtration The solution is to check the air filter, and the filter screen is replaced according to the situation (2) the purity of the material solution is not high The solution is to sample the material solution and filter out the impurities in the material solution (3) there are impurities in the equipment The solution is to clean the equipment regularly and completely to remove impurities Fault 3: serious powder running, low recovery of products and solutions: (1) problems in 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 dedusting performance is low The solution is to appropriately increase the secondary dedusting.