A high-density insensitive rock heavy ammonium oil explosive

Abstract

The invention discloses a high-density insensitive rock heavy ammonium nitrate fuel oil explosive. The high-density insensitive rock heavy ammonium nitrate fuel oil explosive is prepared by adding 95-98 parts by weight of ammonium nitrate and 2-5 parts by weight of light diesel oil into per 100 parts by weight of a rock emulsion matrix for mixing, wherein the rock emulsion matrix is prepared by blending 70-75% by weight of ammonium nitrate, 8-10% by weight of sodium nitrate, 10-12% by weight of water, 2-5% by weight of an emulsifier and 3-5% by weight of special wax for emulsification. The high-density insensitive rock heavy ammonium nitrate fuel oil explosive disclosed by the invention has very excellent high density and water resistance, can be directly sunk to the bottom of water in an environment with the water or a mixture of slurry and the water, and can realize complete explosion by being immersed into the water which is 1m deep for 24h. The high-density insensitive rock heavy ammonium nitrate fuel oil explosive disclosed by the invention has good plasticity, high detonation velocity value, high brisance value, no sensitivity of a detonator and safety in production, storage, transportation and use.

Description

technical field

[0001] The invention belongs to the technical field of industrial explosives and relates to a heavy ammonium oil explosive, in particular to a heavy ammonium oil explosive with high density and suitable for use in an environment with water. Background technique

[0002] There is a large amount of groundwater in tunneling and open-pit mining working faces. Therefore, the demand for high-density insensitive heavy ammonium oil explosives used in tunneling and open-pit mining at home and abroad continues to increase.

[0003] Ordinary industrial water-resistant explosives with detonator sensitivity are mainly composed of water-phase materials containing ammonium nitrate and sodium nitrate and oil-phase materials containing emulsifiers, paraffin, vaseline and other oily substances, and the density is generally 0.95 ~ 1.18g / cm 3 , when the powder roll enters the blast hole full of muddy water, it is often floated on it, which brings certain difficulties to the char...

Examples

Embodiment 1

[0026] Take 73kg of ammonium nitrate and 9.3kg of sodium nitrate, mix with 11kg of water and heat to 121°C to make an aqueous phase solution.

[0027] Take 2kg of emulsifier, 2kg of engine oil, 1.2kg of paraffin wax, 0.2kg of microcrystalline wax, and 1.3kg of vaseline, mix them, heat to 112°C, and make an oil phase solution.

[0028] At 123°C, add the water phase solution and the oil phase solution into a high-speed stirring emulsifier to make a rock emulsification matrix.

[0029] The above-mentioned rock emulsification matrix, 96kg of ammonium nitrate, and 4kg of light diesel oil were added into an open mixer, stirred for 8 minutes, and packed to make a high-density insensitive rock heavy ammonium oil explosive.

[0030] Table 2 Test performance of high-density insensitive rock heavy ammonium oil explosives

[0031] project performance Detonation performance Use 10% rock-expanded ammonium nitrate explosive or emulsion explosive as the primer to detonate,...

Embodiment 2

[0033] Take 74kg of ammonium nitrate and 9.5kg of sodium nitrate, mix with 10kg of water and heat to 118°C to make an aqueous phase solution.

[0034] Take 2.3kg of emulsifier, 1.8kg of engine oil, 1kg of paraffin, 0.2kg of microcrystalline wax, and 1.2kg of petrolatum, mix them, heat to 106°C, and make an oil phase solution.

[0035] At 120°C, add the water phase solution and the oil phase solution into a high-speed stirring emulsifier to make a rock emulsification matrix.

[0036] The above-mentioned rock emulsification matrix, 95.5kg of ammonium nitrate, and 4.5kg of light diesel oil were added into an open mixer, stirred for 10 minutes, and packaged to make high-density insensitive rock heavy ammonium oil explosives.

[0037] Table 3 Test performance of high-density insensitive rock heavy ammonium oil explosives

[0038] project performance Detonation performance Use 5% rock expanded ammonium nitrate explosive or emulsion explosive as the priming charge...

technical field

[0001] The invention belongs to the technical field of industrial explosives and relates to a heavy ammonium oil explosive, in particular to a heavy ammonium oil explosive with high density and suitable for use in an environment with water. Background technique

[0002] There is a large amount of groundwater in tunneling and open-pit mining working faces. Therefore, the demand for high-density insensitive heavy ammonium oil explosives used in tunneling and open-pit mining at home and abroad continues to increase.

[0003] Ordinary industrial water-resistant explosives with detonator sensitivity are mainly composed of water-phase materials containing ammonium nitrate and sodium nitrate and oil-phase materials containing emulsifiers, paraffin, vaseline and other oily substances, and the density is generally 0.95 ~ 1.18g / cm 3 , when the powder roll enters the blast hole full of muddy water, it is often floated on it, which brings certain difficulties to the char...

Examples

Embodiment 1

[0026] Take 73kg of ammonium nitrate and 9.3kg of sodium nitrate, mix with 11kg of water and heat to 121°C to make an aqueous phase solution.

[0027] Take 2kg of emulsifier, 2kg of engine oil, 1.2kg of paraffin wax, 0.2kg of microcrystalline wax, and 1.3kg of vaseline, mix them, heat to 112°C, and make an oil phase solution.

[0028] At 123°C, add the water phase solution and the oil phase solution into a high-speed stirring emulsifier to make a rock emulsification matrix.

[0029] The above-mentioned rock emulsification matrix, 96kg of ammonium nitrate, and 4kg of light diesel oil were added into an open mixer, stirred for 8 minutes, and packed to make a high-density insensitive rock heavy ammonium oil explosive.

[0030] Table 2 Test performance of high-density insensitive rock heavy ammonium oil explosives

[0031] project performance Detonation performance Use 10% rock-expanded ammonium nitrate explosive or emulsion explosive as the primer to detonate,...

Embodiment 2

[0033] Take 74kg of ammonium nitrate and 9.5kg of sodium nitrate, mix with 10kg of water and heat to 118°C to make an aqueous phase solution.

[0034] Take 2.3kg of emulsifier, 1.8kg of engine oil, 1kg of paraffin, 0.2kg of microcrystalline wax, and 1.2kg of petrolatum, mix them, heat to 106°C, and make an oil phase solution.

[0035] At 120°C, add the water phase solution and the oil phase solution into a high-speed stirring emulsifier to make a rock emulsification matrix.

[0036] The above-mentioned rock emulsification matrix, 95.5kg of ammonium nitrate, and 4.5kg of light diesel oil were added into an open mixer, stirred for 10 minutes, and packaged to make high-density insensitive rock heavy ammonium oil explosives.

[0037] Table 3 Test performance of high-density insensitive rock heavy ammonium oil explosives

[0038] project performance Detonation performance Use 5% rock expanded ammonium nitrate explosive or emulsion explosive as the priming charge...