蓄熱式燃燒技術(shù)在大型低熱值煤氣環(huán)形加熱爐改造中的應(yīng)用
Application of Thermal Storage Combustion Technique to Modifi-cation of Large-sized Low Heat Value Coal Gas Heating Furnace
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摘要: 湖北新冶鋼集團(tuán)公司Φ170mm軋管機(jī)組中徑21m的環(huán)形加熱爐由于燃燒系統(tǒng)配置不合理,一直未能達(dá)到設(shè)計(jì)加熱能力,僅為35t/h且能耗高,嚴(yán)重制約了機(jī)組生產(chǎn)能力的發(fā)揮。采用蓄熱式燃燒技術(shù)對(duì)爐子燃燒系統(tǒng)進(jìn)行改造后,該加熱爐的加熱能力明顯提高,實(shí)測(cè)達(dá)到55t/h,最大達(dá)到60t/h;加熱溫度均勻,節(jié)能效果明顯,管坯加熱過(guò)程中無(wú)待溫時(shí)間,滿足了擴(kuò)大生產(chǎn)能力的要求。Abstract: The rotary hearth furnace with 21 m middle diameter of the Φ170 mm pipe-rolling plant of Hubei Xinye Steel Corp.had failed to operate with the designed heating capacity,owing to the inappropriate configu-ration of the combustion system.The furnace had disadvantages of high energy consumption and so low heating capacity just as 35 t/h,which seriously restricted tapping the production capacity of the pipe plant.Thanks to the modification with the thermal storage combustion technique,the heating capacity of the furnace has been greatly enhanced up to 55 t/h,maximum 60 t/h.The actual operation practice shows that the modified furnace features uniform heating temperature,obvious energy-saving efficiency,completely elimination of the temperature-waiting time during the billet-heating process,having met the requirement for expanding the production capacity of the said pipe plant.
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