Development Of Intelligent Ventilation Technology For Metal And Nonmetal Underground Mines

In the field of mine safety research in China,the research on intelligent mine ventilation is relatively weak.Realizing intelligent mine ventilation is an important part of building intelligent mine.Mine intelligent ventilation is the deep integration of ventilation parameter real-time acquisition and processing technology,remote control technology and mine ventilation system,realizes on-demand ventilation through intelligent regulation,and realizes the automatic management of ventilation system and intelligent response in case of disaster.The main process of realizing intelligent ventilation is the real-time collection of mine ventilation parameters,comprehensive,efficient and reliable transmission of information,intelligent analysis and decision-making of ventilation state,and intelligent regulation of ventilation structure.By analyzing the development status of mine ventilation intelligent software and technology at home and abroad,this paper summarizes some key problems of mine ventilation intelligent at present.Aiming at the development status of mine ventilation network solution software,the functional requirements of mine intelligent ventilation software are put forward.The main functions include three-dimensional visual modeling of mine ventilation system,real-time monitoring and early warning of mine ventilation parameters,real time solution of mine ventilation network,intelligent regulation of mine ventilation system and intelligent response to mine disaster.In the process of software development,firstly,the overall architecture of the software is designed,which is divided into business architecture,application architecture,data architecture and technical architecture.According to the design of the overall architecture,the business function design,technical scheme design and system network design are carried out respectively,and finally the design and development of the software are completed.This paper analyzes and studies the key technologies required by mine intelligent ventilation.First,the mine communication system.Aiming at the difficult layout and high maintenance cost of the mine communication system,the power line carrier communication is designed.The equipment used in the communication includes the mine power network communication transceiver,the mine power network communication repeater and the mine power network communication data acquisition instrument.The feasibility of the power line carrier communication is verified by the simulated roadway experiment in the Wuhan Safety and Environmental Protection Research Institute of Sinosteel group.Taking Daye Iron Mine as the engineering background,an optical fiber--power line joint transmission scheme based on Daye Iron Mine is designed.Secondly,Research on mine personnel positioning system.Firstly,it analyzes the function and current situation of the current mine personnel positioning system.At present,the most commonly used mine personnel positioning system is the personnel positioning system based on RFID,and then analyzes the positioning principle of RFID and Wi Fi.Based on the principle of using the old,set up the power network Wi Fi access point in the area where the RFID personnel positioning system is not deployed,and connect the power network Wi Fi through the smart phone to locate the regional position of personnel in real time,design a personnel positioning system based on RFID and Wi Fi.Third,study on monitoring of mine ventilation parameters,the installation position of wind speed sensor in mine roadway section is verified.By analyzing the previous results,the experiment is carried out in the simulated roadway of the Wuhan Safety and Environmental Protection Research Institute of Sinosteel group to determine the installation position of the wind speed sensor in the section,so as to ensure that the measured point wind speed value is closer to the average wind speed value of the whole section.Then,the design of how to connect various sensors to the mine ventilation intelligent management system is carried out,Finally,taking the deep ventilation system in the west area of Daye Iron Mine as the engineering background,the specific layout of various sensors is designed.Fourth,research on equipment alarm,study the specific process of equipment alarm,establish the index system of equipment alarm and the preprocessing method of equipment collected data.Fifthly,research on underground ventilation power and ventilation structures,the style,installation method,remote access design,remote monitoring and remote control of underground intelligent air door and air window are designed,and makes experimental simulation on the real-time monitoring and remote control of air door and fan in the simulated roadway of Wuhan Safety and Environmental Protection Research Institute of Sinosteel group,which can well realize the real-time monitoring and remote regulation of ventilation structures.Sixth,study on intelligent regulation of mine ventilation,designed a convenient and efficient air volume regulation method for different operation periods,and reserved an interface in the software,which can be modified according to the actual situation of the mine.