Research On Gas Analysis System Of Blast Furnace Top And Its Application

The development of on-line gas analysis system is reviewed. According to the current situation of development and utilization, the development of on-line gas analysis system is prospected.Take Tianjin steel, Ma’anshan steel and Panzhihua steel as an example, the importance of the analyzing system of top gas of blast furnace in blast furnace production is elaborated. The analyzing system of blast furnace gas analyses the contents of carbon monoxide, carbon dioxide, nitrogen and hydrogen. The numerical analysis can directly react the burning in the blast furnace, and it has an effect on foundry technology. The utilization of the analyzing system of top gas of blast furnace changes the numerical hysteretic state of hand sampling and cuts down the cyclical analysis. It also improves the measure accuracy. At the same time, it reduces people’s labor intensity and improves the automation level of blast furnace. Through acquiring the blast furnace’s state parameters in time, operators can judge and regulate the blast furnace’s state by random inspection. By changing the parameters of content, load, loading, blanking, wind pressure, blowing rate, oxygen enrichment and coal injection, it avoids the major accident of operate miss and retains the steady state of high production. Meanwhile, it improves the blast furnace’s production and gas utilization rate. It also sets the stage for blast furnace’s high and dependable production.The contents, working principle, key technology, pretreatment PLC controlling process and configure software MCGS’design of the analyzing system of top gas of blast furnace in Tianjin steel is highlighting informed. It finds the links that influence the measuring accuracy and offers proposals to implement by analyzing measuring error. By this way, it consummates the analyzing system of top gas of blast furnace in our steel, while improves the analyzing accuracy and makes overhauling conveniently. The most important are that it not only lengthens the meters’useful time, but also saves the attachments’cost for steel.