초록 ▼

An explosive composition comprising an oxidising agent such as ammonium nitrate (AN), and a fuel material which may include a fuel oil (FO) and which also comprises a solid fuel such as rubber particles or polystyrene beads or flakes. The solid fuel is incorporated into the composition to provide fo

An explosive composition comprising an oxidising agent such as ammonium nitrate (AN), and a fuel material which may include a fuel oil (FO) and which also comprises a solid fuel such as rubber particles or polystyrene beads or flakes. The solid fuel is incorporated into the composition to provide for the controlled release of energy upon detonation of the explosive composition. It has been found that by substituting some or all of the liquid fuel oil with a slower burning solid fuel, the time during which the pressure builds up during detonation is lengthened. Thus a low shock energy explosive (LSEE) can be produced having reduced shock energy and increased heave energy compared to convention explosives, such as ANFO.

대표청구항 ▼

An explosive composition comprising an oxidizing agent in solid particulate form and a fuel materials, wherein said fuel material includes a nonabsorbent solid fuel material incorporated into the composition in particulate form, the weight ratio of the oxidizing agent to the fuel material being in t

An explosive composition comprising an oxidizing agent in solid particulate form and a fuel materials, wherein said fuel material includes a nonabsorbent solid fuel material incorporated into the composition in particulate form, the weight ratio of the oxidizing agent to the fuel material being in the range of 85:15 to 99:1, and the percentage by weight of the solid fuel material being set between 1 to 15% of the total weight of the composition, the balance, if any, of the fuel material comprising a liquid hydrocarbon component, and wherein at least one of the dimensions of the solid fuel material particles is of a size relative to the oxidizing agent particles such that a significant proportion of the oxidizing agent particles are not in contact with any solid fuel material particles whereby, in use, the solid fuel material is effective in reducing the shock energy whilst increasing the heave energy so that the total energy per unit volume released remains comparable to a conventional high shock energy explosive of similar density.