A12: The common faults of shampoo emulsifiers and their handling methods are as follows: 1) Fault: The homogenizing motor cannot start. Causes: Power failure, overload protection triggered, motor wiring loose, or frequency converter failure. Handling methods: Check the power supply and reset the circuit breaker; reduce the material viscosity (heat the material or add an appropriate amount of deionized water) to eliminate overload; check the motor wiring and tighten the loose connectors; inspect the frequency converter and replace the damaged components if necessary. 2) Fault: Excessive noise during equipment operation (noise ≥85 dB). Causes: The shear gap of the homogenizing head is too large, the motor bearing is worn, the mixing paddle is loose, or the material is uneven. Handling methods: Adjust or replace the stator and rotor to reduce the shear gap; replace the motor bearing; tighten the fixing bolts of the mixing paddle; stop the equipment and stir the material manually to make it even. 3) Fault: Material leakage at the tank cover or discharging port. Causes: The sealing ring is worn or deformed, the tank cover is not tightened, or the discharging valve is damaged. Handling methods: Replace the sealing ring; tighten the tank cover bolts; repair or replace the discharging valve. 4) Fault: The emulsion is uneven (visible oil droplets or agglomeration). Causes: The homogenizing speed is too low, the shear gap is too large, the emulsification temperature is inappropriate, or the feeding sequence is wrong. Handling methods: Increase the homogenizing speed; adjust or replace the stator and rotor to reduce the shear gap; adjust the emulsification temperature to the target range; rework the material according to the correct feeding sequence. 5) Fault: The CIP system cannot clean the tank thoroughly. Causes: The cleaning nozzles are blocked, the cleaning liquid concentration is insufficient, or the cleaning time is too short. Handling methods: Disassemble and clean the nozzles; increase the concentration of the cleaning liquid (according to the manufacturer's recommendation); extend the cleaning time by 5-10 minutes.