串联流化床反应器冷态实验研究  

Study on a cold condition for a serial fluidized bed reactor

作　　者：李文兵[1] 袁章福[1] 杨成砚[1] 郑少华[2] 廖代华[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：《现代化工》2003年第z1期185-187,共3页Modern 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：为了解决攀枝花高钙、镁钛精矿采用电炉冶炼之后所得的高钛渣的直接氯化问题,进行了快速流化床-湍流床-快速流化床三级串联组成的串联流化床反应器的冷态研究。测定了流化床颗粒的速度和浓度分布,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、湍流床的轴向浓度分布进行了考察,比较了湍流床和沸腾床对同样强度颗粒的碾碎率,结果证明了湍流床具有较高的抗粘结能力。The characters of a serial fluidized bed reactor, which was composed of a fast-fluidized bed, turbulent fluidized bed and fast-fluidized bed in a cold condition were studied to resolve the problems existing in direct-chlorination of titania-en- riched slag from the refineries in Panzhihua. The velocity of the fast-fluidized bed and concentration, flow pattern and solid resi- dence time in turbulent fluidized bed were studied. The distribution of axial and radial concentrates of turbulent fluidized bed was reviewed. The ability of coherence resisting in turbulent fluidized bed was studied too. The degree of scrunch which could express the extent of coherence resisting was used to character the degree of activity in turbulent fluidized bed reactor. Results showed that the turbulent fluidized bed has better anti-cohering ability.

关 键 词：流化床 反应器 浓度分布 密度 

分 类 号：TQ051[化学工程]