主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2025, Vol. 44 ›› Issue (8): 1048-1055.

• • 上一篇    下一篇

含脲醛树脂胶木粉尘爆炸特性试验研究

邓涵匀1, 于立富1, 张福群1, 孙威2   

  1. （1.沈阳化工大学 环境与安全工程学院，辽宁 沈阳 110142； 2.沈阳化工大学 化学工程学院，辽宁 沈阳 110142）
  • 收稿日期:2024-07-19 修回日期:2024-09-20 出版日期:2025-08-15 发布日期:2025-08-15
  • 作者简介:邓涵匀，沈阳化工大学环境与安全工程学院硕士研究生，主要从事工业爆炸理论与防治技术研究，辽宁省沈阳市铁西区十一号街11号，110142。
  • 基金资助:
    辽宁省教育厅基本科研面上项目（LJ212410149006）

Experimental study on explosion characteristics of wood dust containing urea-formaldehyde resin

Deng Hanyun1, Yu Lifu1, Zhang Fuqun1, Sun Wei2   

  1. (1. College of Environmental and Safety Engineering, Shenyang University of Chemical Technology, Shenyang Liaoning 110142, China; 2. College of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang Liaoning 110142, China)
  • Received:2024-07-19 Revised:2024-09-20 Online:2025-08-15 Published:2025-08-15

摘要： 为探究脲醛树脂胶黏剂对木粉尘爆炸的影响，采用工业分析、元素分析等方法，利用激光粒度仪、扫描电子显微镜（SEM）、20 L球形爆炸装置、MIKE Ⅲ测试装置、恒温热板等装置对含脲醛树脂胶黏剂胶木粉（样品A）及无胶木粉（样品B）的爆炸特性进行试验测试。结果表明，粉尘层最低着火温度随粉尘层厚度增大而减小，厚度为15 mm时样品A2、B2最低着火温度分别为310、295 ℃；粉尘质量浓度为1 250 g/m3时，样品A2和B2的最小点火能量分别为100~150 mJ、50~100 mJ；样品A2、B2的爆炸下限分别为125、75 g/m3；在200~1 500 g/m3范围内，过200目筛的样品A2、B2最大爆炸压力分别为0.67、0.78 MPa，最大爆炸压力上升速率分别为26.96、21.75 MPa/s。样品A的着火敏感度及爆炸烈度低于样品B，说明脲醛树脂胶黏剂对木粉尘的燃爆具有抑制作用。

关键词: 粉尘爆炸, 木粉尘, 脲醛树脂胶黏剂, 着火敏感性, 爆炸烈度

Abstract: In order to study the effect of urea-formaldehyde resin adhesive on wood dust explosion, industrial analysis and element analysis were used. The explosion characteristics of wood dust containing urea-formaldehyde resin (sample A) and non-adhesive wood dust (sample B) were measured by laser particle sizer （SEM）, 20 L spherical explosive device, MIKE III testing device and thermostatic hot plate. The results show that the minimum ignition temperature of the dust layer decreases with the increase of the dust layer thickness, and the minimum ignition temperature of the samples A2 and B2 are 310 ℃ and 295 ℃ respectively when the dust layer thickness is 15 mm. The minimum ignition energies of samples A2 and B2 are 100~150 mJ and 50~100 mJ respectively, and the lower explosive limit concentrations of samples A2 and B2 are 125 g/m3 and 75 g/m3 respectively when the mass concentration is 1 250 g/m3. The maximum explosion pressures of A2 and B2 （200 mesh） are 0.67 MPa and 0.78 MPa, respectively, and the maximum explosion pressure rising rate are 26.96 MPa/s and 21.75 MPa/s, when the mass concentration is 200~1 500 g/m3. The results show that the ignition sensitivity and explosion intensity of sample A are lower than that of sample B, that is, the urea-formaldehyde resin has an inhibitory effect on wood dust explosion.

Key words: dust explosion, wood dust, urea-formaldehyde resin adhesive, ignition sensitivity, explosion intensity