There is a rotary kiln circuit design allows the boot loop, but during the run easily encounter some problems. After a rotary electrical circuit failure analysis to understand. We need to frequently check the daily operation rotary electrical circuit rheostat level, temperature is normal, check the wiring connection is intact, the contact is tight; various types of contactors, relays, contact spring pressure is normal, whether the position of the limit switch accurate, etc.; sometimes a fixed position limit switch contact closure insufficiency can cause improper and disorders, no detail is likely to be the source of the problem, so we must do the inspection rules, in order to ensure production safety. Kiln there had been started after the end of the rotor shorting contactor is not timely closed, resulting in long-term power rheostat, the motor speed drop occurs, the electrolyte temperature and boiling sodium carbonate solution turned into foam overflow outside the box and other accidents, we should shorting contactor control secondary control loop to start solving. Circuit design has a loop allowed to start only when the internal and external conditions, such as electro-hydraulic circuit all the liquid level, temperature is normal; electrical components of the circuit involved more, to prevent low-level or high-temperature rheostat work under temperature, level other relay class; Main rotor to prevent shorting the state to start the motor contactor class; has run up and down stroke control electrode switches; there are some security settings for system into the camera double throw knife in limit switches and Other electrical contacts so desired chain. The above article by Henan YuFeng Heavy Machinery (http://www.yufchina.com) finishing release, reproduced, please indicate the source!