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    • 5. 发明公开
    • Gasification process for coal gasification furnace and apparatus therefor
    • Vergasungsverfahrenfüreinen Kohlenvergasungsofen und Vorrichtungdafür。
    • EP0241866A2
    • 1987-10-21
    • EP87105267.6
    • 1987-04-09
    • HITACHI, LTD.
    • Morihara, AtsushiMiyamoto, TomohikoKoyama, ShuntaroNogita, ShunsukeHishinuma, Yukio
    • C10J3/46C10J3/48
    • C10J3/487C10J3/526C10J2300/093C10J2300/1846Y10S48/02
    • This invention relates to a gasification process for a coal gasification furnace which comprises ejecting coal and an oxidizing agent along the circumferential direction of a gasification chamber (10) to form a whirling stream, making the two contact and react with each other in the gasification chamber (10), thereby producing a combustible gas from the coal while making ash in the coal melt into the form of slag, and withdrawing the slag through a slag tap (3) provided at the lower part of the gasification chamber (10) into a slag cooling chamber, wherein said process comprises causing the whirling stream to produce pressure difference such that the pressure decreases from the wall surface of the gasification chamber (10) toward the central part thereof, forming, by use of the pressure difference, a recycle system wherein a part of the combustible gas produced is introduced from the gasification chamber to the slag cooling chamber and returned again therefrom to the gasification chamber (10), and heating the slag tap (3) by means of the circulating combustible gas, and to a process therefor.
    • 本发明涉及一种煤气化炉的气化方法,其包括沿着气化室(10)的圆周方向喷射煤和氧化剂以形成旋流,从而在气化室中彼此接触并反应 (10),由此从煤中产生可燃气体,同时使煤熔体中的灰分变成炉渣,并且通过设置在气化室(10)的下部的炉渣抽出器(3)将炉渣排出成为 炉渣冷却室,其中所述方法包括使回转流产生压力差,使得压力从气化室(10)的壁表面朝向其中心部分减小,通过使用13压差形成回收 系统,其中产生的可燃气体的一部分从气化室引入炉渣冷却室,并从其再次返回到气化炉 琥珀(10),并通过循环的可燃气体加热渣丝锥(3),并进行处理。