The causes, treatment methods and preventive measures of various types of explosion prevention are shown in Table 1.
Table 1 Causes, treatment methods and preventive measures for various types of explosion prevention
| Detonation type | cause | Approach | Precaution | |
| Partial explosives refused to explode | (1) Explosives are damp; (2) There is rock powder separated, affecting the explosion | (1) flushing out the explosive with water; (2) removing the drug pack | (1) Waterproof or wet blastholes must be waterproofed; (2) Purge the blastholes before charging | |
| The detonator exploded and the explosives all refused | (1) Deterioration or dampness of explosives; (2) Insufficient detonation force of detonator; (3) Detonation of detonator from drug pack | (1) Remove the blockage and reinstall the explosive charge to detonate; (2) If it is a powdery drug, flush out the blockage and explosive with water, and recharge the charge. | (1) Strictly inspect the blasting materials and take care of them; (2) Waterproof or wet blastholes must be waterproofed; (3) Detonators and packs in the primer should be tied | |
| Detonators, detonating cords and explosives are all rejected | Electric detonator detonation | (1) The quality of the electric detonator is unqualified; (2) The fuse is not cut neatly, the flame does not pass the detonator of the detonator or the detonator and the fuse are left; (3) the fuse is inadvertently injured; (4) Missing ignition | (1) carefully take out the blockage and reinstall the detonation kit to detonate; (2) carefully remove some of the blockages, reinstall the detonation kit, and detonate (3) detonate with electric detonators and detonating cords. The blasthole can be re-initiated and detonated; (4) A parallel blasthole is drilled at a certain distance from the blasthole (the shallow eye is not less than 0.3 m, and the open-air deep hole is not less than 2 m). | (1) Tightly connect the fuse to the fire tube; (2) Put the fuse against the hole wall when charging, disable the gun stick mammoth (3) Be calm and careful when igniting, mark the ignition sequence and Number of shots |
| Electric detonator detonation | (1) The quality of the electric detonator is unqualified; (2) The electric blast network is not suitable for the detonation condition; (3) The line connection is wrong, the joint is in poor contact, and the line is grounded. | (1) The electric blast network must meet the requirements for permitting detonation conditions; (2) Be careful when carefully connecting the network, and carefully check after connecting. | ||
| Detonating cord | (1) The quality of the detonating cord is unqualified; (2) The detonating cord network is connected incorrectly; (3) The shock wave and the flying stone destroyed by the first burst of the detonated cord | (1) The connection line should be careful and the connection method should be correct; (2) The detonating cord of the deferred detonation should be strengthened to avoid damage caused by the first impact. | ||
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