Research On Establishment Of Intrinsic Safety For Coke Oven Produceing Basing On The Man-machine System

At 10:30 on February 15,2008,the 5th of coke oven on Magang CHAR gas exploded in a basement.One person died and five were injured.In the basement of coke oven,the flue gas-profile equipment,valves hoist frequently,It is easy to gas leaks,fire and explose.As to coking factory,the coke oven basement casualty forecasting model can be established, and a monitoring system could be set up to prevent the happening of the coke oven basement accident,thus the enterprise property and the lives of the workers would be safe.This paper,applying safety monitoring theory,takes precautions against the coke oven production accident.It brings together the coke oven basement accident characteristic and the cross track theory to establish the casualty forecasting model for the coke oven basement.Through the analysis of the coke oven basement casualty forecasting model and mathematic model,this paper gives a new way to implement monitoring within a appropriate jetting distance and proper danger area of harmful gas,in particular,it builds a mathematic model for the coke oven basement harmful gas jetting process. Accordingly it gives a reasonable installation range of a sensor to prevent from an improper or redundant sensor installation which could lead to a failure or waste to monitor the harmful gas.In the monitoring process,at first the analog signals sampled by sensors should be converted to digital signals by the A/D converter,then the micro controller system will analyze the data and sent appropriate signals to a field alarming system,meanwhile a message will be sent to the supervisory computer though the Lon Works field bus.The field alarming system would give an acousto-optic warning when there's an accident.With a LNS DDE server and a set of monitoring software being developed by the VCSC configuration platform,the supervisory computer could give a real-time romote monitoring system.Ultimately,the incident root will be monitored and the production safety can be guaranteed.