克拉维酸钾微晶纤维素混粉爆炸参数测定研究

The research on medicinal mix dust explosion characteristic of potassium Clavulanate and microcrystalline cellulose

对引起克拉维酸钾微晶纤维素粉尘发生爆炸的相关条件进行了试验研究。取克拉维酸钾微晶纤维素1∶1混合粉尘,利用20 L球形粉尘爆炸测试装置。结果表明:①随着含湿量的增加,粉尘爆炸下限值也增加。②测试结果得出,粉尘最低着火温度为210℃;粉尘云的最低着火温度为370℃。③随着粉尘质量浓度的提高,最大爆炸压力也随着提高;纯克拉维酸钾粉尘的爆炸压力都要超过混合粉尘。④惰化试验结果表明,氧气体积分数低于14.6%时,粉尘不爆炸;为15.5%时爆炸特别猛烈。结论:可为药物粉尘爆炸事故防护措施提供参考。

The correlated conditions attracting mix dust explosion of potassium Clavulanate and microcrystatlline cellulose has been experimentally studied. Taking a mixture of potassium Clavulanate and microcrystalline cellulose in proportion of 1 ： 1, and the 20 L spherical dust explosion plant was adopted. Results show that： （1）The lower explosion limit value of the dust raises as the moisture content increases. （2） The lowest ignition point of the dust is 210℃, which of the dust cloud is 370 ℃.（3）The largest explosive pressure raises as the mass concentration of the dust increases. The explosive pressure of pure potassium Clavulanate dust is bigger than that of mix dust. （4）When volume concentration of oxygen is lower than 14.6%, the dust doesn＇ t explode. When volume concentration of oxygen equals 15.5%, the explosion is especially violence. Conclusion： It may provide reference for prevention measures of medicinal dust explosion.