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    • 66. 发明专利
    • Highly concentrating apparatus for sulfuric acid
    • 高浓度浓硫酸装置
    • JPS5727908A
    • 1982-02-15
    • JP10176380
    • 1980-07-23
    • Daido Chem Eng Kk
    • SUMITANI SHINZOUMORIMOTO YASUO
    • B01D1/22B01D1/06C01B17/88C02F1/08
    • B01D1/065
    • PURPOSE:To concentrate sulfuric acid as starting material with high thermal efficiency in a high yield by allowing steam generated in each heating tube to whirlingly rise along the inner wall of the tube dropping the sulfuric acid in the form of a thin film. CONSTITUTION:A columnar body 13 provided with a spiral vane 12 on the outside is put in each upright heating tube 3 in a heating furnace 1 while leaving a slight gap 19 between the tip of the vane 12 and the inside of the tube 3 to form a spiral path 11 through which generated steam rises whirlingly. Sulfuric acid as starting material introduced through a pipe 7 and a dispersion pipe 5 is fed to the tube 3 through a circular slit 6 and flows downward along the inside of the tube 3 in the form of a thin film. During this time, the acid is heated with combustion gas in the furnace 1 to evaporate water, and concd. sulfuric acid is recovered in a storage tank 2 through the bottom notch 4 of the tube 3. On the other hand, generated steam rises whirlingly through the path 11 and is discharged from a steam header 10 through the inner pipe 5d of the pipe 5 and a steam duct 9.
    • 目的:通过使每根加热管中产生的蒸汽沿着管的内壁旋转,将硫酸作为起始材料以高热效率浓缩,将硫酸以薄膜的形式滴下。 构成:在加热炉1中的每个立式加热管3中放置有在外侧设置有螺旋叶片12的柱状体13,同时在叶片12的顶端和管3的内部之间留有微小的间隙19,形成 产生的蒸汽通过螺旋路径11旋转地升起。 通过管7和分散管5引入的作为原料的硫酸通过圆形狭缝6供给到管3中,并以薄膜的形式沿着管3的内部向下流动。 在此期间,用炉1中的燃烧气体加热酸,使水蒸发, 硫酸通过管3的底槽4在储罐2中回收。另一方面,产生的蒸汽通过路径11旋转上升,并通过管5的内管5d从蒸汽集管10排出, 蒸汽管道9。