In order to study the effect of different explosive suppressive materials on explosive characteristics of pesticide dust. A 20L spherical explosion test device and a minimum ignition energy test device were used to analyze the explosive characteristics of flutriafol dust, tebuconazole dust and tricyclazole dust. The effects of different content of inhibiting materials on the explosive inhibiting properties of flutriazole dust with different particle sizes were studied. The results show that the maximum explosion pressure of flutriafol dust is the largest, and NH4H2PO4, KCl and CaCO3 all have inhibitory effects on flutriazole dust explosion. Among them, NH4H2PO4 has a better suppression effect. When the content of NH4H2PO4 is more than 30%, the inhibition effect is most obvious. The particle size of explosive suppression material has no obvious effect on dust suppression effect. With the increase of ignition delay time, the minimum ignition energy of pesticide dust decreases first and then increases.
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