| Belt conveyors are a class of logistics delivery devices that are widely used in various industries.Traditional belt conveyors operate at constant speed.When the belt load changes,the belt speed cannot be adjusted with the change in the load,resulting in belt type Conveyors often have the phenomenon of low-load high-speed or even no-load high-speed operation.Not only the work efficiency is low,but also a lot of power is wasted.The mine belt conveyor system often presents relatively large safety risks.The lack of real-time online safety evaluation system makes staff Failure to discover security risks and eliminate them in time leads to a large number of security incidents that lead to a large number of casualties and property losses.In this regard,the following work has mainly been done in this article:1.First,the composition,process flow and working principle of the belt conveyor were discussed.The common resistance and operating power of the belt conveyor during the operation process were analyzed in detail,and the key links of the research were positioned.2.Discussed in detail the evaluation methods of safety grades such as fuzzy safety assessment.Aiming at the characteristics and environment of the belt conveyor system,a method for judging the safety grade of the belt conveyor system was proposed and implemented: the safety grade extension assessment method.3.Based on the fuzzy control proposed in this paper,the implementation steps of fuzzy control are discussed in detail.The main system characteristic parameters such as conveyor belt speed,load,and coal capacity and coal miner continuous mining time are taken as input,and belt speed is output,and the energy level control strategy is more accurate to meet more different categories.The belt conveyor system was divided into seven scenarios to conduct fuzzy control simulation studies to verify the energy efficiency and reliability of the control strategy.4.The design of the hardware platform and the development and design of the software are completed according to the safety assessment method and the automatic energy-saving speed control system proposed in the foregoing.The software development design includes: 1)MATLAB implements a security rating extension assessment method based on Grobsch data optimization and Bayesian data fusion.2)PLC realizes an automatic energy-saving control system based on the fuzzy control setter.3)Kingview completes the design of the monitoring system.4)MATLAB and Kingview use OPC plug-in to achieve data communication;Kingview and PLC complete data communication through OPC software settings.The real-time online safety rating of the belt conveyor system and the automatic energy-saving speed control are realized.The on-line energy-saving control method of belt conveyor proposed in this paper applies more belt conveyor systems,and at the same time,it perfects the flaws of off-line safety rating methods.If applied to the conveyor control system,it can relatively improve the control performance and reduce the worker’s inspection labor intensity.Can extend the life of conveyors,reduce major accidents,and enhance the overall efficiency of enterprises.The conclusions of this paper have certain reference significance for the actual project. |
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