CN102241552B - High density rock powdery emulsion explosive and preparation method thereof - Google Patents
High density rock powdery emulsion explosive and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of explosives and particularly relates to a high density rock powdery emulsion explosive and a preparation method thereof. The invention aims to provide a high density rock powdery emulsion explosive of which the density can be increased and detonation performance can be improved. The high density rock powdery emulsion explosive contains ammonium nitrate, urea, paraffin, composite oil, an emulsifier and a regulator. The preparation method comprises the following specific steps: 1) using ammonium nitrate and urea to prepare an aqueous phase solution; 2) using paraffin, composite oil and an emulsifier to prepare an oil phase solution; 3) adding the aqueous phase solution and oil phase solution in a mixing emulsifier to emulsify and obtain a sticky paste; 4) conveying the sticky paste with a screw pump to a spray gun arranged in a drying and powder production tower, atomizing and dewatering the paste, drying to prepare a powdery emulsion explosive; and 5) mixing the powdery emulsion explosive with the regulator evenly, and packaging to prepare the high density powdery emulsion explosive. The explosive has the advantages of good explosive performance, high density, good fluidity, long storage life and the like.
Description
Technical field
The invention belongs to the explosive technical field, be specifically related to a kind of high density rock powdery emulsion explosive and preparation method thereof.
Background technology
Powdery emulsifying explosive, be called for short PEE, it is the moisture industrial explosive of a kind of Novel powder granular (water resistant type) that development in recent years is got up, it be with than the fine droplets of the oxygenant of oxygenant (take ammonium nitrate as the main) solution of low water content or melting as disperse phase, the oil-phase solution that specific carbonaceous fuel and emulsifying agent form is external phase, form the water-in-oil-type emulsoid by strong shear under certain processing condition, this emulsoid such as pulverizes after by spray pulverization, rotary flash distillation or cooling curing at a kind of powdery ammonium nitrate class emulsion explosive that method is made.The density of such explosive is generally 0.825～1.05g/cm
3, in density regions, meeting detonation rate increases comparatively fast with density.Therefore the density that increases explosive can strengthen its detonation property.
Summary of the invention
The purpose of this invention is to provide a kind of density that can heighten explosive, improve the high density rock powdery emulsion explosive of its detonation property.
Another object of the present invention provides the preparation method of this emulsion explosive.
High density rock powdery emulsion explosive of the present invention comprises the component of following parts by weight:
70～85 parts in ammonium nitrate, 1～3 part in urea, 1～3 part in paraffin, 1～3 part of compounded oil, 1～3 part of emulsifying agent, 2～10 parts of conditioning agents.
Wherein said compounded oil is machine oil, rosin, emulsification special-purpose grease.
Described emulsifying agent is emulsifying agent SP-80, emulsifying agent T152, emulsifying agent T154.
Described conditioning agent is that density is 2.5～8g/cm
3Nitrogenous class inorganic salt.
The preparation method of a kind of high density rock powdery emulsion explosive of the present invention may further comprise the steps:
1) gets the ammonium nitrate of above-mentioned parts by weight and urea in container, add 3～10 parts water, be heated to 120～125 ℃ and make ammonium nitrate and urea dissolve complete, make aqueous phase solution;
2) paraffin, compounded oil and the emulsifying agent of getting above-mentioned parts by weight are heated to 125～130 ℃ in another container, paraffin, compounded oil and emulsifying agent are mixed, and make oil-phase solution;
3) under 120～130 ℃ of conditions, aqueous phase solution and oil-phase solution are added in the mixing emulsifier of high-speed stirring, be emulsified into thick lotion;
The thick lotion that 4) will prepare is transported to spray gun in the dry powder process tower with spiral pump, with lotion atomizing dehydration, makes powdery emulsifying explosive through cold air drying again;
5) above-mentioned powdery emulsifying explosive and 2～10 parts of conditioning agents are mixed, packing is made the high-density powdery emulsifying explosive.
Add behind the conditioning agent the raising of explosive density for showing, the present invention measures the explosive that does not add conditioning agent and Explosive roll performance and the density that adds different mass mark conditioning agent, the results are shown in Table 1:
Table 1 rock powdery emulsion explosive the performance test results
The result shows and adds that performance and the density of explosive all increases behind the conditioning agent, the selected conditioning agent of the present invention is nitrogenous class inorganic salt, this salt in explosive be oxygenant be again combustible agent, its adding can improve the brisance performance of explosive, add simultaneously this salt and can significantly improve the explosive load of powder stick unit volume, reached the requirement that improves cartridge density, add the flowability that density adjuster can also effectively increase blasting explosive granules in the powdery emulsifying explosive simultaneously, increase storage life, and prevented the explosive caking.The advantages such as therefore compared with prior art, the present invention has that explosion properties is good, density is high, good fluidity and storage life are long.
Embodiment
Embodiment 1
1) gets 70 kilograms of ammonium nitrate and 1 kg urea in container, add 3 kg water, be heated to 120 ℃ and make ammonium nitrate and urea dissolve complete, make aqueous phase solution;
2) get 1 kilogram of paraffin, 1 kilogram of machine oil and 1 kilogram of emulsifying agent SP-80 in another container, be heated to 125 ℃, paraffin, compounded oil and emulsifying agent are mixed, make oil-phase solution;
3) under 120 ℃ of conditions, aqueous phase solution and oil-phase solution are added in the mixing emulsifier of high-speed stirring, be emulsified into thick lotion;
The thick lotion that 4) will prepare is transported to spray gun in the dry powder process tower with spiral pump, with lotion atomizing dehydration, makes powdery emulsifying explosive through cold air drying again;
5) above-mentioned powdery emulsifying explosive and 2 kilograms of nitrate of baryta are mixed, packing is made the high-density powdery emulsifying explosive.
Embodiment 2
1) gets 78 kilograms of ammonium nitrate and 2 kg urea in container, add 7 kg water, be heated to 122 ℃ and make ammonium nitrate and urea dissolve complete, make aqueous phase solution;
2) get 2 kilograms of paraffin, 2 kilograms of rosin and 2 kilograms of emulsifying agent T152 in another container, be heated to 127 ℃, paraffin, compounded oil and emulsifying agent are mixed, make oil-phase solution;
3) under 125 ℃ of conditions, aqueous phase solution and oil-phase solution are added in the mixing emulsifier of high-speed stirring, be emulsified into thick lotion;
The thick lotion that 4) will prepare is transported to spray gun in the dry powder process tower with spiral pump, with lotion atomizing dehydration, makes powdery emulsifying explosive through cold air drying again;
5) above-mentioned powdery emulsifying explosive and 6 kilograms of lead nitrates are mixed, packing is made the high-density powdery emulsifying explosive.
Embodiment 3
1) gets 85 kilograms of ammonium nitrate and 3 kg urea in container, add 10 kg water, be heated to 125 ℃ and make ammonium nitrate and urea dissolve complete, make aqueous phase solution;
2) get 3 kilograms of paraffin, 3 kilograms of emulsification special-purpose greases and 3 kilograms of emulsifying agent T154 in another container, be heated to 130 ℃, paraffin, compounded oil and emulsifying agent are mixed, make oil-phase solution;
3) under 130 ℃ of conditions, aqueous phase solution and oil-phase solution are added in the mixing emulsifier of high-speed stirring, be emulsified into thick lotion;
The thick lotion that 4) will prepare is transported to spray gun in the dry powder process tower with spiral pump, with lotion atomizing dehydration, makes powdery emulsifying explosive through cold air drying again;
5) above-mentioned powdery emulsifying explosive and 10 kilograms of Silver Nitrates are mixed, packing is made the high-density powdery emulsifying explosive.
Claims (2)
1. the preparation method of a high density rock powdery emulsion explosive, this explosive is comprised of the component of following parts by weight:
70～85 parts in ammonium nitrate, 1～3 part in urea, 1～3 part in paraffin, 1～3 part of compounded oil, 1～3 part of emulsifying agent, 2～10 parts of conditioning agents, wherein said compounded oil are machine oil, rosin, emulsification special-purpose grease; Described emulsifying agent is emulsifying agent SP-80, emulsifying agent T152, emulsifying agent T154; It is characterized in that concrete preparation method may further comprise the steps:
1) gets the ammonium nitrate of above-mentioned parts by weight and urea in container, add 3～10 parts water, be heated to 120～125 ℃ and make ammonium nitrate and urea dissolve complete, make aqueous phase solution;
2) paraffin, compounded oil and the emulsifying agent of getting above-mentioned parts by weight are heated to 125～130 ℃ in another container, paraffin, compounded oil and emulsifying agent are mixed, and make oil-phase solution;
3) under 120～130 ℃ of conditions, aqueous phase solution and oil-phase solution are added in the mixing emulsifier of high-speed stirring, be emulsified into thick lotion;
The thick lotion that 4) will prepare is transported to spray gun in the dry powder process tower with spiral pump, with lotion atomizing dehydration, makes powdery emulsifying explosive through cold air drying again;
5) above-mentioned powdery emulsifying explosive and 2～10 parts of conditioning agents are mixed, packing is made the high-density powdery emulsifying explosive.
2. the preparation method of a kind of high density rock powdery emulsion explosive according to claim 1 is characterized in that described conditioning agent is that density is 2.5～8g/cm
3Nitrogenous class inorganic salt.
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| CN102241552B true CN102241552B (en) | 2013-03-27 |
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| CN104276909B (en) * | 2014-09-15 | 2016-08-24 | 山西同德化工股份有限公司 | A kind of high density insensitiveness rock titania-mica |
| CN104803814A (en) * | 2015-04-22 | 2015-07-29 | 长沙亦川机电设备科技有限责任公司 | Intermediate-temperature-sensitized emulsion explosive and preparation method thereof |
| CN105418341A (en) * | 2015-12-14 | 2016-03-23 | 山西江阳兴安民爆器材有限公司 | Main charge for charging of emulsified seismic explosive column |
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| CN1275557A (en) * | 2000-07-05 | 2000-12-06 | 东南大学 | Powder emulsified explosive for coal mine and productive method thereof |
| CN1359011A (en) * | 2001-08-17 | 2002-07-17 | 北京克浪石油技术有限公司 | High-resolution three-dimension three-component earthquake focus prospecting cannonball and making method thereof |
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| CN101475424A (en) * | 2009-01-24 | 2009-07-08 | 湖南南岭民用爆破器材股份有限公司 | High power emulsified explosive |
| CN101823926A (en) * | 2010-04-20 | 2010-09-08 | 新时代(济南)民爆科技产业有限公司 | Preparation process of emulsion explosive |
| CN101948362A (en) * | 2010-09-09 | 2011-01-19 | 广东华威化工实业有限公司 | High-power emulsion explosive and preparation method thereof |
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2011
- 2011-04-29 CN CN 201110113266 patent/CN102241552B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1275557A (en) * | 2000-07-05 | 2000-12-06 | 东南大学 | Powder emulsified explosive for coal mine and productive method thereof |
| CN1359011A (en) * | 2001-08-17 | 2002-07-17 | 北京克浪石油技术有限公司 | High-resolution three-dimension three-component earthquake focus prospecting cannonball and making method thereof |
| CN1594243A (en) * | 2004-06-20 | 2005-03-16 | 广东华威化工实业有限公司 | Emulsified detonator and method for preparing same |
| CN1618775A (en) * | 2004-08-26 | 2005-05-25 | 煤炭科学研究总院爆破技术研究所 | Pressure resistant emulsified explosive |
| CN101475424A (en) * | 2009-01-24 | 2009-07-08 | 湖南南岭民用爆破器材股份有限公司 | High power emulsified explosive |
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