Reasons : (1) the atomization disk is unbalanced; (2) axis bending; (3) the bearing or change gear is worn or damaged; (4) poor quality of lubricating oil. Solution : (1) correct atomization disc balance; (2) correct or replace the shaft; (3) replace the bearing or gear; (4) check the lubricating oil supply system and oil quality.
2. Defective confidential seal for centrifugal spray dryer: Reasons : (1) aging of sealing ring; (2) loose fasteners; (3) the support is loose. Solution : (1) replace the sealing washer; (2)adjust the position of the bracket and tighten it.
3. Poor dust removal by pulse bag filter: Reasons : (1) improper bag selection; (2) the cloth bag is blocked or damaged; (3) the pulse cycle is too long; (4) poor grounding; (5) the pulse valve is damaged. Processing : (1) choose cloth bags with higher filtration accuracy; (2) clean or replace the cloth bag; (3) adjust the cycle of blowback; (4) check the ground wire; (5) replace the pulse valve. If it is equipped with a foam precipitator, the outlet of the foam precipitator will spray water. Reason: the water screen is blocked. Solution: clean or change the water-screen.
4. The vibration hammer of centrifugal spray dryer does not work or does not work well: Reasons : (1) circuit fault; (2) the energizing time is out of sync with the hammer action; (3) insufficient spring. Solution : (1) repair the circuit; (2) adjust the power-on operation time; (3) replace the spring.
5. The bearing temperature of centrifugal spray dryer increases significantly: Reasons : (1) oil hole is blocked and the oil quantity is reduced; (2) poor oil quality; (3) the cooling water pipe is blocked; (4) bearing is worn or damaged. Solution : (1) check and dredge oil holes; (2) oil change; (3) check to dredge the cooling water pipe; (4) replace the bearing.
6. The too-small air volume of centrifugal spray dryer: Reason: the filter pressure difference is too small Solution: check the filter to see if it is blocked. In general, the primary filter should be cleaned every shift
7. Failure of automatic control meter system of centrifugal spray dryer: Reasons : (1) the instrument itself fails; (2) poor contact or aging of instrument lines; (3) unstable pressure of the air source system or leakage of air pressure pipeline;(4) the action mechanism is damaged. Solution : (1) overhaul or replace the instrument; (2) replace or overhaul the instrument lines; (3) filling leakage and stabilizing voltage; (4) repair and adjust the action mechanism.
8. Oil leakage of centrifugal spray dryer atomizer: Reason: too high negative pressure Solution: adjust the pressure of spray tower barrel to keep its negative pressure ≤3000Pa.