Correlation Vibration Research For The Pipeline Systems Of The New First Blast Furnace's Hot Blast Stove In Angang

More than ten years, the steel industry gets a quick development strongly with the national economy pushes, many domestic steel corporation s in succession new,extension and rebuild a large blast furnace, the important and subsidiary equipments of the blast furnace-the hot breeze stove the system also appeared bigness and complication. Various duct roads, such as the combustion-supporting air, fuel gas, cold breeze, hot breeze, the smoke windpipe road, still many the hot changed machine of assistance tube road constitute the huge hot breeze stove system, it is essential to the system. It is emerge the problem that the hot breeze stove the system and includes parts of the tube roads of the stability run. The vibration with emergence of the Angang steel new No. 1 blast furnace hot breeze stove tube road system, not only make the hot breeze stove the life span be subjected to threat, and can't satisfy the high temperature request, but also serious danger to the produce of blast furnace.The thesis takes the Angang steel new No. 1 blast furnace hot breeze stove tube road system vibration as background to carry on a research, analyzing to encourage influence factor of take care of the road from the theories, and adopt the method with the signal analysis, carry on a comprehensive test to the hot breeze stove system of the vibration, what the whole system appear the resonance of coupling doubly frequency, its resonance frequency is a 12 Hz following low frequency. The research express that influence the blast furnace hot breeze stove the gas pipe road system a vibration of the factor have a lot, a flowing solid to coupling vibration is a main factor. Pass the establishment tube road mechanics model calculation analysis; get to reinforce the tube road that can raise the proper frequency, deviates system coupling resonance frequency. The concrete measure adopt that exchange hot machine piping to beat bore to turn on water, curved take care of the place and the text surname discharge to take care of place to reinforce in the coal gas and the combustion-supporting air, and measure instrument to carry on check etc. , make the proper frequency of the whole tube road system raise to the 20 Hz thus above, keep off creation to coupling vibration of resonance frequency, promised the whole hot breeze stove system a stability to circulate.To the vibration analyze and the research of test's problem, at last we came to a conclusion that observation and theoretical analysis are squared. And we come up a series of reasonable technical scheme with similar vibration problem. It is also guided to other hot blast stove vibration even the analysis and solution for industrial gas pipeline vibration problem. Also we imported advanced, greater precision and low frequency optical fibres sound transducer to test hot blast stove vibration, which was the first one at home. And it laid the groundwork for industry using military equipment.