Has anyone encountered problems with selecting dust explosion-proof equipment?
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Today I encountered a type of dust, zinc stearate. In GB50058, the ignition temperature for zinc stearate at 5 mm is specified as the melting point; however, according to the MSDS, its melting point is 120 degrees. The specification requires an additional 75-degree margin to be deducted, meaning the surface of the motor housing must not exceed 45 degrees – how is that possible? Or is my approach wrong? Thank you all
I’m not entirely familiar with the exact figures, but if the data is correct, I think appropriate measures can be taken: one is to add an explosion-proof enclosure around the motor, and the other is to set up a climate-controlled room or similar arrangement to lower the temperature. If it still can’t be done, then would it be necessary to extend the piping and move the motor out of the explosion-proof area?
Thank you. I saw in the dust standards GB12476 that it explains how to conduct the experiments, but it’s really confusing for me. Why not just tell me what kind of equipment should be used for handling dust? Only the explosion protection code GB50058 provides some information on dust
Which industry? Should I use zinc stearate?
Is there an answer to this question? Seeking guidance