Hazard assessment of high speed slurry blending using computer modelling of electric fields and potentials

Electrostatics 2015

物理学;数学

Pavey, I.D.^1

Chilworth Technology Ltd, Southampton Science Park, Southampton

SO16 7NS, United Kingdom^1

关键词: Computer modelling;    Dispersion systems;    Electrostatic ignition hazards;    Hazard Assessment;    Headspaces;    High Speed;    New high;    Protective measures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/646/1/012023/pdf
DOI  :  10.1088/1742-6596/646/1/012023

来源: IOP

【 摘 要 】

Generalised published guidelines indicated a new high shear slurry dispersion system should include inerting of the vessel headspace to avoid electrostatic ignition hazards. This paper describes how computer modelling of electric fields and potentials, combined with experimental measurements on laboratory scale equipment, was used to show that inerting is not warranted in this case. Ultimately the conclusion was that, subject to certain restrictions, an incendive electrostatic discharge in the new blender could be considered so unlikely that inerting or other protective measures would not be required.