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    • 1. 发明申请
    • METHOD FOR FEEDING PULVERISED COAL INTO A BLAST FURNACE
    • 将粉煤送入火炉的方法
    • WO2009141419A1
    • 2009-11-26
    • PCT/EP2009/056211
    • 2009-05-22
    • PAUL WURTH S.A.GOEDERT, PaulLUNKES, ChristianLEMMER, Pol
    • GOEDERT, PaulLUNKES, ChristianLEMMER, Pol
    • F27B1/16C21B5/00C21B7/16
    • F27B1/16C21B5/003C21B7/163F27D3/18F27D19/00
    • The present invention proposes a method for feeding pulverised coal into a blast furnace, wherein the method comprises the following steps: providing a tuyere stock (14) for blowing hot blast air from a bustle pipe (12) into a furnace hearth of a blast furnace through a tuyere (15) in an opening in the furnace wall (16); providing a pulverised coal injection lance (18) for feeding pulverised coal into the tuyere (15), the pulverised coal injection lance (18) comprising an inner pipe (20) for conveying pulverised coal and an outer pipe (22), coaxially arranged around the inner pipe (20), for conveying combustive gas, the inner pipe (20) forming a separation wall for separating the pulverised coal from the combustive gas, the pulverised coal injection lance (18) having a lance tip (24) arranged in the tuyere (15); allowing the pulverised coal and the combustive gas to form a mixture of pulverised coal and combustive gas at the lance tip (24); burning the mixture of pulverised coal and combustive gas in the tuyere (15); monitoring whether or not a flame at the lance tip (24) is burning; and upon determination that the flame at the lance tip (24) is not burning, reigniting the flame by temporarily reducing the flow of combustive gas through the pulverised coal injection lance (18).
    • 本发明提出了一种将粉煤送入高炉的方法,其特征在于包括以下步骤:提供用于将热风从吹风管(12)吹入高炉炉膛的风口料(14) 通过炉壁(16)中的开口中的风口(15); 提供用于将粉煤送入风口(15)的粉煤喷射枪(18),该粉煤喷射枪(18)包括用于输送粉煤的内管(20)和外管(22),同轴地布置在 用于输送燃烧气体的内管(20),内管(20)形成用于将粉煤与可燃性气体分离的分隔壁,所述粉煤喷枪(18)具有布置在所述燃烧气体中的喷枪尖(24) 风口(15); 允许粉煤和可燃气体在喷枪尖端(24)处形成粉煤和可燃气体的混合物; 在风口中燃烧粉煤和可燃气体的混合物(15); 监测喷枪尖端(24)上的火焰是否燃烧; 并且在确定喷枪尖端(24)上的火焰不燃烧时,通过临时减少通过粉煤喷射枪(18)的可燃气体的流动来重新点燃火焰。
    • 4. 发明公开
    • METHOD FOR FEEDING PULVERISED COAL INTO A BLAST FURNACE
    • PROCEDURE煤粉供给在气体焚烧炉
    • EP2286166A1
    • 2011-02-23
    • EP09749909.9
    • 2009-05-22
    • Paul Wurth S.A.
    • GOEDERT, PaulLUNKES, ChristianLEMMER, Pol
    • F27B1/16C21B5/00C21B7/16
    • F27B1/16C21B5/003C21B7/163F27D3/18F27D19/00
    • The present invention proposes a method for feeding pulverised coal into a blast furnace, wherein the method comprises the following steps: providing a tuyere stock (14) for blowing hot blast air from a bustle pipe (12) into a furnace hearth of a blast furnace through a tuyere (15) in an opening in the furnace wall (16); providing a pulverised coal injection lance (18) for feeding pulverised coal into the tuyere (15), the pulverised coal injection lance (18) comprising an inner pipe (20) for conveying pulverised coal and an outer pipe (22), coaxially arranged around the inner pipe (20), for conveying combustive gas, the inner pipe (20) forming a separation wall for separating the pulverised coal from the combustive gas, the pulverised coal injection lance (18) having a lance tip (24) arranged in the tuyere (15); allowing the pulverised coal and the combustive gas to form a mixture of pulverised coal and combustive gas at the lance tip (24); burning the mixture of pulverised coal and combustive gas in the tuyere (15); monitoring whether or not a flame at the lance tip (24) is burning; and upon determination that the flame at the lance tip (24) is not burning, reigniting the flame by temporarily reducing the flow of combustive gas through the pulverised coal injection lance (18).