Use and cleaning method of centrifugal spray dryer

After the completion of the centrifugal spray dryer, we need to do some cleaning, inspection, to ensure the normal operation of the machine. The following step by a small drying machine for everyone to introduce the operation of centrifugal spray dryer cleaning:
After the normal operation of the centrifugal spray dryer, the operation of the system should be regularly collected and checked regularly. At the end, the heating device should be shut down first, and the water should be used instead of the feed liquid to wash the residue. When can stop blower and exhaust fan running inlet temperature to 100 degrees centigrade after reduction. Then clean the residual material drying tower and the collector, collector and close the air hammer, finally turn off the power supply, complete the production operation. In case of emergency, the equipment must be shut down immediately, and the blower and the pump should be shut down first. If Tuyu power outage, should make the tower natural cooling, and then open the drain valve, exhausting the slurry in the slurry pipeline, and cleaning equipment.
In addition, after the use of the spray plate should be removed, immersed in water, the residue of water clean. In the use of water wash, brush application. Because residue spray head will bring spray unbalance, seriously affect the service life of the nozzle or even damage other parts. After the completion of the nozzle and the transport process should not lie down. If it is not correct, it will cause the spindle to bend and affect the use.
Cleaning: in order to ensure the cleaning of the drying tower and its pipes and all the parts in contact with the finished product, it is necessary to have a regular product. When the product variety replacement, or equipment has been discontinued more than 24h and not clean, should be a comprehensive and thorough cleaning. Cleaning method, according to the actual choice of dry cleaning, wet washing or chemical wash.
Dry cleaning: clean with a brush or vacuum cleaner (for small dryers).
Wet wash: wash with 60~80 DEG C hot water.
Chemical cleaning: alkali, acid and detergent. Among them, pickling: HNO3 solution with 1~2% concentration, heating temperature is less than 65 DEG C for washing, then rinse; alkali washing: NaOH solution with 0.5~1% concentration, heating temperature is less than 65 DEG C for washing, then wash it with clean water.
When wet washing and chemical washing, the equipment and parts should be installed, high temperature disinfection, time 15~30min.
In the centrifugal spray dryer cleaning, attention should not be used in the washing of chlorine and its compounds.
Air filter cleaning, should be according to the ambient conditions, that is, the amount of dust in the air can be determined, the general content of a high 3~6 week cleaning, dust content of 6~8 weeks to clean once. The stainless steel wire, by alkali washing after washing, still should be evenly applied to frame air filter, and sprayed with light or spindle oil, vacuum pump oil.