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Zhao Q.,China University of Mining and Technology | Zhao Q.,Zaozhuang Mining Industry Group Ltd Company
Advanced Materials Research | Year: 2012

In order to diagnose mine fan fault timely, to enhance and improve the level of safety of coal mining enterprises, construct fuzzy expert system based on multiple symptom. The system presents a inference model based on rules and cases, establish fault diagnosis knowledge base of the rules and cases. Using pros and cons mixed reasoning strategy, according to the fault symptom obtained from man-machine conversation, dialogue diagnosis was carried out on the equipment fault. Use the calculation of symptom and rules confidence to produce fault result confidence to screen and order the faults, and export supporting information such as the diagnostic process explanation and maintenance plan and so on,which is convenient for users to understand and carry out various processing. © (2012) Trans Tech Publications, Switzerland. Source

Qiang Z.,Zaozhuang Mining Industry Group Ltd Company
Advanced Materials Research | Year: 2012

In the sight of friction hoist machine transmission characteristics, analysis of the possibility of friction hoist machine sliding ropes phenomenon, sliding ropes phenomenon can be divided into safety slide and dangerous slide two states. In order to avoid the occurrence of the friction hoist machine container over wind, overfall major accident caused by steel wire ropes dangerous slide, using two encoders to sample the speed of friction hoist machine wheel and the actual speed of steel wire ropes, concluding and analyzing the sliding ropes state of friction machine, according to the hoist container position and sliding ropes trend when the steel wire ropes of friction hoist machine start to slide, determining the dangerous state of sliding ropes. Designed the sliding ropes hydraulic brake device, with the adjustable sliding ropes brake torque and fast dynamic response control function, preventing the hoist container over wind, overfall major accident, as the same time, minimizing the machinery injury to the steel wire ropes when the sliding ropes are braked, realizing flexible sliding ropes brake. © (2012) Trans Tech Publications, Switzerland. Source

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