NOUFERROUS METALLURGICAL EQUIPMENT

Ventilation management is a key part of mine safety production process, so mine ventilation and safety are crucial to guarantee sufficient fresh air underground. In the process of mine production, both the personnel movement and equipment operation will trigger the local wind demand change in the shaft. However, the ventilation scheme in the prior art can only be adopted to optimize local ventilation or ventilation network monitoring, while it can not realize ventilation adjustment of each operating point in the shaft, that is, it can not realize the ventilation on demand at each operating point. Targeted at the air volume control system in the shaft, this paper designs one set of fuzzy PID controller, using fuzzy control method based on conventional PID controller, to realize the control of the motor running according to the set air volume. Simulation comparison and analysis is carried out between the conventional PID controller and the fuzzy PID controller. The results show that the fuzzy PID control system features faster response and less overshoot, proving a better control effect than the conventional PID. Therefore, this air volume control system plays a positive role in the automation of underground ventilation and the improvement of productivity, with a practical engineering value.