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High-power emulsion explosive and preparation method thereof

A technology of emulsified explosives and power, applied in the direction of explosives, etc., can solve the problems of consuming steam or electric energy, affecting safety production, prolonging the dissolution time of water phase, etc., to achieve the goal of increasing the explosion temperature and specific volume, improving the working ability and reducing project investment Effect

Active Publication Date: 2011-01-19
广东华威化工股份有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In order to improve the working ability of emulsion explosives, scientific research institutes and manufacturers at home and abroad have adopted the method of increasing the content of ammonium nitrate in the water phase prepared by emulsion explosives or adding solid substances with high calorific value such as aluminum powder. Increasing the content of ammonium nitrate will cause the emulsification process. The crystallization point in the emulsion rises, and consumes a lot of steam or electric energy, prolongs the dissolution time of the water phase, shortens the storage period of the emulsion explosive, and affects the quality of the emulsion explosive; adding a large amount of aluminum powder, a solid substance with a high calorific value, will Significantly increase the cost of emulsion explosives and even affect safe production

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] Add 9 kg of tap water into the water phase dissolving tank and heat up to 100°C, power 3KW, speed 1420 rpm, then add 80 kg of ammonium nitrate, 3.5 kg of sodium nitrate, and 1 kg of urea to dissolve under heating. When the temperature rises to 100°C, Insulation for standby, the dissolution time is 35 minutes; 1.5 kg of paraffin and 3 kg of composite oil phase are sequentially added to the oil phase dissolution tank (1.5KW, 1430 rpm) to heat up, the dissolution temperature is 85 ° C, and the dissolution time is 35 minutes. Add 2.0 kilograms of modified Span-80 emulsifiers 10 minutes before use, and keep warm for subsequent use. The modified Span-80 emulsifiers are the compound of 0.8 kilograms of soybean flour emulsifiers and 1.2 kilograms of Span-80 emulsifiers; , After the oil phase material is filtered, the water phase conveying equipment and the oil phase conveying system are sent to the emulsifier for emulsification, the power is 15KW, the speed is 1470 rpm, and then...

Embodiment 2

[0026] Add 11 kg of tap water to the water phase dissolution tank to raise the temperature, then add 78 kg of ammonium nitrate, 5 kg of sodium nitrate, and 0.3 kg of urea to dissolve under heating. Add paraffin wax and 2.7 kg of composite oil phase to the oil phase dissolving tank in sequence to raise the temperature, the dissolving temperature is 90°C, and the dissolving time is 30 minutes. Span-80 emulsifier is a compound of 0.9 kg of soybean flour emulsifier and 0.6 kg of Span-80 emulsifier; after filtering the above-mentioned water phase and oil phase materials, the water phase conveying equipment and oil phase conveying system are sent to the emulsifier Carry out emulsification, and then send it to the cooling machine with a latex delivery pump for automatic cooling. Sodium nitrate, 750 grams of ammonium nitrate, 985 grams of water, gram of phosphoric acid, 7.5 grams of thiourea, and 10 kilograms of porous granular ammonium nitrate are mixed uniformly through a continuous...

Embodiment 3

[0028] Add 9 kg of tap water to the water phase dissolving tank to raise the temperature, then add 77 kg of ammonium nitrate, 5 kg of sodium nitrate, and 2 kg of urea to heat and dissolve. Add paraffin wax and 3.5 kg of composite oil phase to the oil phase dissolving tank in order to raise the temperature, the dissolving temperature is 90°C, and the dissolving time is 30 minutes. Span-80 emulsifier is a mixture of 1 kg of soybean flour emulsifier and 1 kg of Span-80 emulsifier; after filtering the above-mentioned water phase and oil phase materials, the water phase conveying equipment and oil phase conveying system are sent to the emulsifier Carry out emulsification, and then send it to the cooling machine with a latex delivery pump for automatic cooling. Sodium nitrate, 750 grams of ammonium nitrate, 985 grams of water, 7.5 grams of phosphoric acid, 7.5 grams of thiourea, and 13.3 kilograms of granular ammonium nitrate are mixed uniformly through a continuous sensitization ma...

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Abstract

The invention discloses a high-power emulsion explosive and a preparation method thereof, aiming to provide a novel explosive with strong explosive capacity, low energy consumption and stable quality. The high-power emulsion explosive is formed by mixing a component A and a component B, wherein the component A comprises the following raw materials in percentage by weight: 75-85 wt% of ammonium nitrate, 9-14 wt% of water, 3-5 wt% of nitrate, 0.3-2.0 wt% of urea, 0.3-3.5 wt% of modified Span-80 emulsifier, 0.3-3.5 wt% of compound oil phase, 1-1.5 wt% of paraffin and 0.8-3 wt% of quick foaming agent. The component B is one of porous granulous ammonium nitrate, or granulous ammonium nitrate or potassium nitrate. The weight ratio of the component A to the component B is 88-96:4-12. The processing method mainly comprises aqueous phase preparation, oil phase preparation, emulsification, sensitization and packaging, wherein porous granulous ammonium nitrate, or granulous ammonium nitrate or potassium nitrate is added during sensitization.

Description

technical field [0001] The present invention relates to an emulsion explosive, more specifically, it relates to a high-power emulsion explosive, and the invention also relates to a preparation method of the above-mentioned explosive. Background technique [0002] The explosive power of explosives is called functional power in explosives, and its working power refers to the work done by the high-temperature and high-pressure explosion products generated when explosives explode, compressing the surrounding medium, causing them to deform, destroy, and scatter. An important indicator of explosive quality. The explosive power of explosives is essentially the sum of the effects of the surrounding medium when the explosive explodes, that is, the total work done by the explosive, which is usually also called the explosive power of the explosive. The high-power emulsion explosive is actually No. 1 rock emulsion explosive, and its working ability index exceeds 320ml. At present, the...

Claims

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Application Information

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IPC IPC(8): C06B31/28
Inventor 饶森宏苗战营张振新潘天洪巫卓东刘文唐钟远军杨柳文曾庆汉杨雄燕苗丽芳钟利强钟远斌李惠新刘渊
Owner 广东华威化工股份有限公司
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