Abstract
The minimum ignition energy of tapioca starch was studied by using 1.2L Hartmann tube, and the three main influencing factors: tapioca starch quality, ignition delay time and dusting pressure were tested. The experimental results show that the effect of dusting pressure on the minimum ignition energy is the most obvious. With the increase of powder pressure, the minimum ignition energy first decreases and then increases, and when the powder pressure is 90Kpa, the minimum ignition energy is the smallest, which is 58mj; ignition delay time is different, the degree of dust dispersion is different, and the optimum ignition delay time is 30ms. The minimum ignition energy decreases first and then increases with the increase of the quality of tapioca starch. When the mass is 0.5 g, the ignition energy is the smallest. It is 60mJ.
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