Low-carbon and environmental-protection bulk emulsion explosive

Abstract

The invention discloses a low-carbon and environmental-protection bulk emulsion explosive and its preparation method. The bulk emulsion explosive is formed through sensitizing an emulsification matrix by a sensitization liquid, wherein the emulsification matrix is obtained through an emulsification action of an aqueous solution of an oxidant salt and an oil phase, and the aqueous solution of the oxidant salt comprises ammonium nitrate, thiourea and water; the oil phase comprises paraffin oil or machine oil, and an emulsifier; and the sensitization liquid comprises sodium nitrite, sodium sulfocyanate or sodium bicarbonate, and water. The emulsion explosive has the advantages of packaging material saving, carbon dioxide discharge reduction, simple formula, effective reduction of the generation of toxic gases, realization of the discharging amount of relevant toxic gases of about 20L / kg, unblocked conveying, and no influences on the charging and the construction.

Description

technical field

[0001] The invention relates to a low-carbon and environment-friendly bulk emulsion explosive. Background technique

[0002] In the process of production, storage, transportation, storage, and loading, traditional industrial explosives are 1.1-level explosives with the sensitivity of No. 8 industrial detonators. Effectively remove accumulated water in the hole. Moreover, the packaging materials used in traditional industrial explosives include paper tubes, paraffin wax, middle-wrapped plastic bags, backing boards, paper packaging boxes, and packaging tapes. When explosives explode, the paper tubes and wax participate in chemical reactions, producing toxic gases and carbon dioxide emissions. ; And the production efficiency is low, the manufacturing cost is high, and the charging efficiency is low.

[0003] More than 85% of mines in my country are still filled with packaged explosives. The explosives use packaging materials, which increases carbon dioxide emi...

Examples

Embodiment 1

[0028] Mix 72kg of ammonium nitrate, 0.2kg of thiourea, 0.1kg of acetic acid, 0.03kg of sodium carbonate, and 19.67kg of water at 80°C to form an aqueous oxidant solution, adjust the pH value to 3.5 with sodium hydroxide and acetic acid, and measure its crystallization point The temperature is 71°C, and the turbidity of the solution is 0.9NTU. Diatomaceous earth adsorbent is added to the solution, and the coarse filter and fine filter are sucked for 30 minutes to become a pure oxidant saline solution for later use; 2.3kg of LZ2820 emulsifier, 5.7kg of paraffin The oil is melted and mixed evenly at 70°C to obtain an oil phase; the oxidant salt solution obtained above and the oil phase are emulsified in an emulsifier to form a water-in-oil emulsified matrix, and the temperature is kept at 78°C, and the viscosity is measured as 25BU ; 0.09 kg of sodium nitrite, 0.11 kg of sodium thiocyanate, and 2.6 kg of water are configured into a sensitization liquid; the above emulsification m...

Embodiment 2

[0032] Mix 75kg of ammonium nitrate, 0.1kg of thiourea, and 17.9kg of water at 86°C to form an aqueous oxidant solution, adjust the pH value to 3.8 with sodium carbonate and acetic acid, and measure the crystallization point of 71°C, and the turbidity of the solution is 0.8NTU , add diatomaceous earth adsorbent to the solution, and filter through the coarse filter and the fine filter for 30 minutes to become a pure oxidant saline solution for later use; melt and mix 1.2kg of LZ2745 emulsifier and 5.8kg of engine oil at 70°C to obtain oil phase; the oxidant salt solution obtained above and the oil phase are emulsified in an emulsifier to form a water-in-oil emulsification matrix, and the temperature is maintained at 78 ° C, and the viscosity is 23 BU; 0.10 kg of sodium nitrite, sodium bicarbonate 0.11kg and 2.7kg of water are configured as a sensitization liquid; the above emulsification base and sensitizer are mixed to obtain a bulk emulsion explosive.

[0033] The test measur...

Embodiment 3

[0036] Mix 80kg of ammonium nitrate, 0.1kg of thiourea, 0.2kg of acetic acid, 0.01kg of sodium carbonate, and 14.69kg of water at 90°C to form an aqueous oxidant solution, adjust the pH value to 4.0 with sodium hydroxide and acetic acid, and measure its crystallization point as 70°C, the turbidity of the solution is 0.8NTU, add diatomaceous earth adsorbent to the solution, and filter through the coarse filter and the fine filter for 30 minutes to become a pure oxidant saline solution for later use; each 0.55kg of LZ2731 emulsifier and LZ2721 emulsifier, paraffin 3.9kg of oil was melted and mixed uniformly at 80°C to obtain an oil phase; the oxidant salt solution obtained above and the oil phase were emulsified in an emulsifier to form a water-in-oil emulsified matrix, and the temperature was kept at 90°C to measure its viscosity It is 15BU; 0.11kg of sodium nitrite, 0.09kg of sodium thiocyanate, and 3.0kg of water are configured into a sensitization liquid; the above emulsifica...

technical field

[0001] The invention relates to a low-carbon and environment-friendly bulk emulsion explosive. Background technique

[0002] In the process of production, storage, transportation, storage, and loading, traditional industrial explosives are 1.1-level explosives with the sensitivity of No. 8 industrial detonators. Effectively remove accumulated water in the hole. Moreover, the packaging materials used in traditional industrial explosives include paper tubes, paraffin wax, middle-wrapped plastic bags, backing boards, paper packaging boxes, and packaging tapes. When explosives explode, the paper tubes and wax participate in chemical reactions, producing toxic gases and carbon dioxide emissions. ; And the production efficiency is low, the manufacturing cost is high, and the charging efficiency is low.

[0003] More than 85% of mines in my country are still filled with packaged explosives. The explosives use packaging materials, which increases carbon dioxide emi...

Examples

Embodiment 1

[0028] Mix 72kg of ammonium nitrate, 0.2kg of thiourea, 0.1kg of acetic acid, 0.03kg of sodium carbonate, and 19.67kg of water at 80°C to form an aqueous oxidant solution, adjust the pH value to 3.5 with sodium hydroxide and acetic acid, and measure its crystallization point The temperature is 71°C, and the turbidity of the solution is 0.9NTU. Diatomaceous earth adsorbent is added to the solution, and the coarse filter and fine filter are sucked for 30 minutes to become a pure oxidant saline solution for later use; 2.3kg of LZ2820 emulsifier, 5.7kg of paraffin The oil is melted and mixed evenly at 70°C to obtain an oil phase; the oxidant salt solution obtained above and the oil phase are emulsified in an emulsifier to form a water-in-oil emulsified matrix, and the temperature is kept at 78°C, and the viscosity is measured as 25BU ; 0.09 kg of sodium nitrite, 0.11 kg of sodium thiocyanate, and 2.6 kg of water are configured into a sensitization liquid; the above emulsification m...

Embodiment 2

[0032] Mix 75kg of ammonium nitrate, 0.1kg of thiourea, and 17.9kg of water at 86°C to form an aqueous oxidant solution, adjust the pH value to 3.8 with sodium carbonate and acetic acid, and measure the crystallization point of 71°C, and the turbidity of the solution is 0.8NTU , add diatomaceous earth adsorbent to the solution, and filter through the coarse filter and the fine filter for 30 minutes to become a pure oxidant saline solution for later use; melt and mix 1.2kg of LZ2745 emulsifier and 5.8kg of engine oil at 70°C to obtain oil phase; the oxidant salt solution obtained above and the oil phase are emulsified in an emulsifier to form a water-in-oil emulsification matrix, and the temperature is maintained at 78 ° C, and the viscosity is 23 BU; 0.10 kg of sodium nitrite, sodium bicarbonate 0.11kg and 2.7kg of water are configured as a sensitization liquid; the above emulsification base and sensitizer are mixed to obtain a bulk emulsion explosive.

[0033] The test measur...

Embodiment 3

[0036] Mix 80kg of ammonium nitrate, 0.1kg of thiourea, 0.2kg of acetic acid, 0.01kg of sodium carbonate, and 14.69kg of water at 90°C to form an aqueous oxidant solution, adjust the pH value to 4.0 with sodium hydroxide and acetic acid, and measure its crystallization point as 70°C, the turbidity of the solution is 0.8NTU, add diatomaceous earth adsorbent to the solution, and filter through the coarse filter and the fine filter for 30 minutes to become a pure oxidant saline solution for later use; each 0.55kg of LZ2731 emulsifier and LZ2721 emulsifier, paraffin 3.9kg of oil was melted and mixed uniformly at 80°C to obtain an oil phase; the oxidant salt solution obtained above and the oil phase were emulsified in an emulsifier to form a water-in-oil emulsified matrix, and the temperature was kept at 90°C to measure its viscosity It is 15BU; 0.11kg of sodium nitrite, 0.09kg of sodium thiocyanate, and 3.0kg of water are configured into a sensitization liquid; the above emulsifica...

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