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    • 5. 发明专利
    • Method for producing low-grade coal slurry, apparatus for producing low-grade coal slurry, and gasification system of low-grade coal
    • 生产低等级煤浆的方法,生产低等级煤浆的装置和低等级煤的气化系统
    • JP2012153761A
    • 2012-08-16
    • JP2011012154
    • 2011-01-24
    • Kawasaki Heavy Ind Ltd川崎重工業株式会社
    • TAKAO SHOICHINISHIMURA MOTOHIKONONAKA YOSHIHARUKUMADA NORIHIKOKIMURA NORIYUKIMORI SHOICHI
    • C10L1/32C10J3/46C10L9/08
    • C10L1/326C10J3/506C10J2300/0906C10J2300/0909C10J2300/093C10J2300/094
    • PROBLEM TO BE SOLVED: To provide a simple method and a simple apparatus for producing low-grade coal slurry that has high slurry concentration and low viscosity and is suitable for gasification by a pressurized gasification furnace, and a gasification system equipped with such a production apparatus.SOLUTION: The method for producing the low-grade coal slurry comprises: a first step of heat-drying coarsely crushed low-grade coal and recovering, as condensed water, steam discharged from the low-grade coal; and a second step of adding the condensed water obtained in the first step and a dispersant to the dry-heated low-grade coal and slurrying the low-grade coal by a wet-crushing method. The apparatus for producing the low-grade coal slurry comprises: a drying apparatus for heat-drying coarsely crushed low-grade coal; a condensed water-recovering apparatus for recovering, as condensed water, steam discharged from the low-grade coal by heat-drying; and a wet-crushing apparatus for slurrying the heat-dried low-grade coal by adding condensed water and a dispersant thereto.
    • 要解决的问题:提供一种简单的方法和用于生产具有高浆液浓度和低粘度并且适合于通过加压气化炉气化的低等级煤浆的简单方法和装备有这样的气化系统的气化系统 一个生产设备。 解决方案:低级煤浆的生产方法包括:将粗粉碎的低级煤加热干燥的第一步骤,作为冷凝水回收低品位煤排放的蒸汽; 以及将第一步骤中得到的冷凝水和分散剂加入到干燥低温煤中的第二步骤,并通过湿式破碎法将低等级的煤粉化。 用于生产低级煤浆的设备包括:用于对粗粉碎的低等级煤进行加热干燥的干燥装置; 冷凝水回收装置,用于回收通过加热干燥从低级煤排出的蒸汽作为冷凝水; 以及通过向其中加入冷凝水和分散剂使经热处理的低级煤浆料化的湿式破碎装置。 版权所有(C)2012,JPO&INPIT