Finishing and cleaning of high-speed centrifugal spray dryer

After the end of the high-speed centrifugal spray dryer and the normal operation of the centrifugal spray dryer after the cleaning, the operation of the system should be regularly collected, and the operation parameters of each system should be recorded At the end, the heating device shall be shut down first, and water shall be used to replace the feed liquid to wash the residual feed liquid in the feed pipe, and then the feed pump shall be shut down When the inlet temperature drops below 100 ℃, the operation of forced draft fan and exhaust fan can be stopped Then clean up the residual materials in the drying tower and dust remover, close the dust remover and air hammer, turn off the main power supply after Zui, and complete the production operation In case of emergency, the equipment must be shut down immediately, and the blower and feed pump shall be shut down first In case of power failure, the tower shall be cooled naturally, and then the drain valve shall be opened to drain the slurry in the slurry pipeline and clean the equipment In addition, after the use of the spray tray should be removed, immersed in water, the remaining substances to clean water When it can't be washed off with clear water, brush it with a brush Because the residual material on the spray tray will bring the spray imbalance, which will seriously affect the service life of the sprinkler and even damage other parts Do not lay down the nozzle after work and during transportation If the installation is not correct, the main shaft will be bent, affecting the use, so there should be a fixed frame for installation Cleaning in order to ensure the cleaning of the drying tower and its pipes and all parts in contact with the finished product and get * products, it is necessary to have regular cleaning equipment When the product variety is changed, or the equipment has been stopped for more than 24 hours without cleaning, a comprehensive and thorough cleaning shall be carried out Cleaning method, according to the actual choice of dry cleaning, wet cleaning or chemical cleaning Dry cleaning: clean with brush and vacuum cleaner (suitable for small dryer) Wet cleaning: use 60 ~ 80 ℃ hot water for cleaning Chemical washing: wash with alkali, acid and various detergents Among them, pickling: prepare HNO3 into a solution with a concentration of 1-2%, wash it at a heating temperature of no more than 65 ℃, and then wash it with water; alkali washing: prepare NaOH into a solution with a concentration of 0.5-1%, wash it at a heating temperature of no more than 65 ℃, and then wash it with water After wet washing and chemical washing, the equipment and components shall be installed and sterilized at high temperature for 15-30min When cleaning the equipment, pay attention not to wash it with chlorine and its compounds The air filter shall be cleaned according to the ambient conditions, i.e the air dust content Generally, it shall be cleaned once every 3-6 weeks with high content and once every 6-8 weeks with low dust content The stainless steel filaments shall be evenly laid into the frame of the air filter after being washed by alkali washing method and sprayed with light spindle oil or vacuum pump oil.