顺流串联流化床流动特性研究  

STUDY ON THE CHARACTERISTICS OF A DOWNSTREAM SERIAL FLUIDIZED BED

作　　者：李文兵[1] 袁章福[1] 王中礼[1] 杨成砚[1] 黄文来[1] 范建峰[1] 朱胜友[2] 廖代华[2] 胡鸿飞[2] 王晶[2] 廖荣华[2] 

机构地区：[1]中国科学院过程工程研究所多相反应实验室,北京100080 [2]攀枝花钢铁(集团)公司,四川攀枝花617067

出　　处：《化工科技》2003年第3期24-28,共5页Science & Technology in Chemical Industry

基　　金：中国科学院 攀枝花市院地合作重点攻关项目(20011 2)。

摘　　要：针对攀枝花钛资源钙、镁含量高的特点,研究了快速流化床 湍流床 快速流化床三级串联组成的顺流串联流化床的流动特性。采用光导纤维测速仪和压力计,研究了固相的停留时间和流动形态。对快速流化床的流化速度、湍流床的轴向和径向浓度分布以及抗粘结能力进行了考察。用功率谱密度函数表征床层的活跃程度,定性地说明了湍流床抗粘结能力提高的幅度。To utilize the titanium source of Panzhihua (Sichuan, P.R. China), the flowing characters of a downstream serial fluidized bed, which was composed of fastfluidized bed, turbulent fluidized bed and fastfluidized bed were studied. The velocity of fastfluidized bed was observed using optical fiber probes. The solid residence time and flow pattern was studied. The distribution of axial and radial concentrates of turbulent fluidized bed was reviewed. The ability of resisting cohere in turbulent fluidized bed was investigated. The function of power spectrum density which could express the extent of resisting cohere was used to character the degree of activity in turbulent fluidized bed. 

关 键 词：顺流串联流化床 流动特性 浓度分布 光导纤维仪 功率谱密度 

分 类 号：TQ051.13[化学工程]