东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2003, Vol. 24 ›› Issue (8): 770-773.DOI: -

• 论著 • 上一篇    下一篇

在三种最小点火能测试装置上对粉尘分散质量的测量

李新光;董洪光;S.Radandt;赫冀成   

  1. 东北大学信息科学与工程学院;东北大学信息科学与工程学院;德国应用系统安全及劳动医学研究协会;东北大学材料与冶金学院 辽宁沈阳　110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 发布日期:2013-06-24
  • 通讯作者: Li, X.-G.
  • 作者简介:-
  • 基金资助:
    留学归国博士启动基金资助项目

Dust dispersion characteristics in the devices used to test the minimum ignition energy

Li, Xin-Guang (1); Dong, Hong-Guang (1); Radandt, Siegfried (2); He, Ji-Cheng (3)   

  1. (1) Sch. of Info. Sci. and Eng., Northeastern Univ., Shenyang 110004, China; (2) Res. Society for Appl. Syst. Safety, Mannheim 68165, Germany; (3) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Published:2013-06-24
  • Contact: Li, X.-G.
  • About author:-
  • Supported by:
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摘要： 对1 2L哈特曼管、20L球形装置和振动筛落管上粉尘分散质量,采用特殊的取样装置与显微摄像相结合的方法进行了测量比较·结果表明:粉尘分散质量在20L球形装置上分散的最好,在哈特曼管上次之,在振动筛落管上粉尘分散的最差·在振动筛落管上很多粉尘粒子在降落过程中并没有真正分开,而是多个粉尘粒子结成一团·因此,振动筛落管不适宜作为粉尘爆炸特性参数最小点火能的测试装置·

关键词: 粉尘爆炸, 分散质量, 20L球, 1-2L哈特曼管, 振动筛落管, 最小点火能

Abstract: The characteristics of dust dispersion such as whether the dust is evenly separated without any aggregation play on a significant role on the measurement accuracy of explosion parameters characteristics of dust dispersion in the 1.2 liters Hartmann bomb, in the 20 liters spheres and in the sieving tube with vibration were investigated respectively, by means of microscope and special sampling technique together. The results indicate that the best dispersion quality takes place in the 20 liters sphere dust, the dispersion quality in Hartmann bomb is the second and the quality in sieving tube with vibration stays at the end. In the case of the sieving tube with vibration, a lot of dust particles are aggregated with each other. Therefore, the sieving tube with vibration is not suitable to be used to measure the minimum ignition energy of dust explosion parameters.

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