Development And Engineering Application Of Intelligent Gas Extraction Monitoring And Monitoring System

In recent years,with the continuous mining of coal resources in China,the recoverable amount of shallow coal has been unable to meet the requirements,and the mining amount of each deep layer has gradually increased.The gas concentration increases with the increase of depth,so it will cause problems to production safety to a certain extent;At the same time,gas as a clean energy will produce certain economic benefits.In view of the actual demand for safe and efficient gas drainage,an intelligent monitoring and control system for gas drainage is proposed,which is of practical significance to the existing safety production.Understand the rule of coal seam gas occurrence and coal mine gas prevention and control methods,make certain analysis on coal mine gas drainage,and adopt different prevention and control measures according to different gas characteristics.At the same time,the process control in the industrial field is analyzed,and it is finally believed that the combination of industrial control and coal mine gas drainage can produce better results.The design principle of the intelligent gas drainage system is described,which shows that the industrial control used in the coal mine has certain particularity and needs quantitative analysis on the design principle of different functional requirements.The influence of the application of intelligent gas drainage system is analyzed to a certain extent,and it is concluded that the energy consumption can be greatly reduced by controlling the motor through the frequency converter.At the same time,the quantitative optimization of the underground gas drainage pipeline is carried out,and the scheme of separate source drainage for the underground gas drainage pipeline can effectively improve the gas drainage effect.At the same time,according to the different gas extraction concentrations,the secondary utilization of gas(low concentration gas power generation)can reduce greenhouse gas emissions and increase the benefits of coal mining enterprises.The intelligent gas drainage system is designed,and different schemes are proposed for different functions.Among them,PLC is mainly used as the central controller to monitor the gas drainage data by installing multi parameter sensors on the gas pipeline;The controlled equipment is used as the control terminal,including valve,motor and upper computer;The configuration screen is designed and combined with control to realize the function of human-computer interaction;Under the communication protocol,realize the interconnection between devices and form a local area network;Video monitoring is installed on the gas pump station to achieve allround video monitoring of the entire gas pump station.The program is compiled for the PLC.Under its operation,the entire gas pump station can be fully automatic,meeting the requirements of the intelligent gas drainage monitoring system.At the same time,according to the test of the gas drainage system under different conditions,it is finally concluded that the energy consumption can be reduced by more than 35% through the use of frequency converter under the best drainage effect.The intelligent gas drainage monitoring and monitoring system has been installed and tested in many coal mines,and field debugging has been carried out according to the actual situation of the site.Finally,the operation has been perfectly realized and has been running for more than half a year.The goal of saving energy by more than 40% and reducing noise by more than 20% has been achieved,which proves the reliability and practicability of the test.The thesis has 49 pictures,9 tables and 54 references.