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成都无缝钢管厂四座70吨碱性平炉原来用全天然气作燃料,1980年8月以后改用冷煤气为主掺入部分天然气的混合燃料。天然气发热值高,但比重小,火焰飘浮,亮度差。为了组织火焰,增加火焰的动能,改善天然气的燃烧条件,因此进入平炉的天然气采取了从换向阀进入,在格子房内预热进行无氧化裂解,并且在炉头上喷射压力为5.5kg/Cm~2的压缩空气。但是,天然气在格子房内的裂解度有限,从炉头喷入炉膛的又是含水份(一般含水量为
Chengdu Seamless Steel Tube Plant four 70 tons of basic open hearth originally used all natural gas as fuel, after August 1980 instead of cold gas-based mixed with part of the mixed natural gas fuel. High calorific value of natural gas, but the proportion of small flame floating, poor brightness. In order to organize the flame and increase the kinetic energy of the flame and improve the combustion conditions of the natural gas, the natural gas entering the open hearth was taken in through the reversing valve, preheated in the lattice room for oxidative non-oxidative cracking, and the injection pressure on the burner was 5.5 kg / Cm ~ 2 compressed air. However, the natural gas in the lattice room of the degree of cracking is limited, injected into the furnace from the burner is moisture (usually water content