Barrier explosion-proof body and use method thereof

The invention discloses a blocking anti-explosion body and a using method thereof.The blocking anti-explosion body comprises a cylindrical body used for being filled in a storage and transportation oil tank, the cylindrical body comprises a plurality of annular blocking anti-explosion nets which are concentric at equal intervals, and each annular blocking anti-explosion net comprises a fixed net layer and a movable net layer, an interlayer spacing adjusting assembly capable of adjusting the spacing between the net layers is arranged between the fixed net layer and the movable net layer, and when the temperature of the fixed net layer or the movable net layer exceeds a preset value, the interlayer spacing adjusting assembly automatically reduces the spacing between the net layers. According to the blocking anti-explosion body and the manufacturing method thereof, the interlayer spacing adjusting assembly is arranged between the fixed net layer and the movable net layer, and when flames appear in a certain annu