无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2015, Vol. 47 ›› Issue (1): 46-.

• 论文 • 上一篇    下一篇

外热式回转窑焙烧5A分子筛原粉系统调试研究

凌振华   

  1. 苏州中材非金属矿工业设计研究院有限公司,江苏苏州 215004
  • 出版日期:2015-01-10 发布日期:2015-01-14

Research on commissioning of external-heated rotary kiln system for calcining 5A zeolite

 LING  Zhen-Hua   

  1. Suzhou Zhongcai Design & Research Institute of Non-Metallic Minerals Industry Co.,Ltd.,Suzhou 215004,China
  • Online:2015-01-10 Published:2015-01-14

摘要: 利用外热式回转窑高温焙烧5A分子筛原粉,可以有效脱除其中的吸附水及结晶水,生产出合格的活化粉产品。研究了焙烧温度、停留时间及物料在窑内填充系数等相关工艺参数对产品指标的影响,从而确定回转窑焙烧5A分子筛的最优工况参数。结果表明,在焙烧温度为620 ℃,物料在烧成区停留时间为45 min,窑内填充系数为0.07~0.08的条件下,回转窑稳定运行时产量为295 kg/h,活化粉静态水吸附量为24.4%~24.45%,烧失率为1.04%~1.15%,回转窑产量及产品指标均达到设计要求。

关键词: 外热式回转窑, 分子筛, 系统调试

Abstract: The external-heated rotary kiln,which can remove absorbed water and crystal water effectively to produce qualified activating powder,was used for the calcination of 5A zeolite powder.The factors,such as calcining temperature,residence time,and fill factor in the kiln,that influenced the product performance indexes were researched,and the optimal working parameters were also determined.Result showed that on the conditions of 620 ℃ calcining temperature,45 min residence time,and 0.07~0.08 fill factor,the output of kiln could reach 295 kg/h and the static absorbed water and LOI rate were at 24.4%~24.45% and 1.04%~1.15%,respectively,with stable operation.Therefore,the output and product quality both met the design requirements.

Key words: external-heated rotary kiln, zeolite, system commissioning

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