Emulsion Base Transmission Pipe Barrier Explosion-proof Prototype Design

Emulsion explosive is one of the most common industrial explosive and widely used in engineering blasting. The bending charge detonation characteristics of emulsion explosive and emulsion matrix have great research value, which is one of hots study in academia recently as well. The systemic experiments, which were mainly focused on the detonation propagation of bending charge of emulsion explosive and its matrix, were carried out in the thesis. The main conclusions are as follows:1,When the charge curvature radius was 50mm under the semi-constrained charge condition of emulsion explosive, detonation velocity decreased with the bending degreeθincreasing. The smaller thickness of emulsion explosive charge was, the quicker detonation velocity decreased.2,Detonation velocity decreased larger in initial bending part than that in the bending pipe in a corrugated tube charge.3,When the charge pipe diameter was 40mm, the temperature of emulsion matrix was from 90℃to 130℃and the curvature radius was less than 80mm, complete detonation wave propagation discontinued in the corrugated tube. When the pipe diameter was 50mm, the temperature of emulsion matrix was 120℃, the curvature radius was 80mm and the media was air between the bending pipe, complete detonation wave propagation of bending pipe charge occurred. While the media was steel plate, detonation wave propagation stopped.4,The corrugated tube diameter was 40mm, the temperature of emulsion matrix was 120℃and curvature radius was 60mm. When the initial pressure was 0.7MPa, complete detonation wave propagation discontinued and the detonation length approximately linearly increased as the initial pressure increased in the emulsion matrix.5,The explosion prevention prototype was designed. The structure parameters of three kinds of prototypes were determined by calculation.