Discussion of present situation and development trend of auxiliary transportation in coal mine underground
As a key part of intelligent construction of coal mine,underground auxiliary transportation system is an efficient,safe,intelli-gent and unmanned transportation system which integrates advanced technologies such as drive,control,operation,maintenance and management,its core is the application of new technology and new theory in underground.Therefore,this paper summarized and ana-lyzed the research status of the underground auxiliary transportation system in coal mines in China,and probed into its development trend in the future.Firstly,the technologies of rail-assisted transportation in vehicle design and optimization,track structure and layout,locomotive control and automation were introduced,at present,the unmanned driving technology of rail electric vehicles has not yet reached the level of autonomous driving.The auxiliary transportation system should focus on researching refined closed-loop control and advanced assistant driving technology.Secondly,the present research situation of trackless transportation in terms of design,construc-tion,safety management,and economic benefits was elaborated.It was believed that the unmanned driving technology of underground trackless transportation vehicles was currently limited by automotive autonomous driving technology and cannot meet the requirements of complex underground environments.In addition,low power consumption and explosion-proof design were difficult to achieve,and there was no actual progress.Finally,the development requirements of the key technologies of the auxiliary transportation system,such as au-tomation and intelligent,new power system,wireless communication and remote monitoring technology were analyzed,in the future,the underground auxiliary transportation will develop towards the direction of automation,intelligent,energy saving,environmental protection and data driving.