CN102241552A - 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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- CN102241552A CN102241552A CN2011101132663A CN201110113266A CN102241552A CN 102241552 A CN102241552 A CN 102241552A CN 2011101132663 A CN2011101132663 A CN 2011101132663A CN 201110113266 A CN201110113266 A CN 201110113266A CN 102241552 A CN102241552 A CN 102241552A
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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 shape (water resistant type) that development in recent years is got up, it is being disperse phase than oxygenant (based on the ammonium nitrate) solution of low water content or the fine droplets of fused oxygenant, the oil-phase solution that specific carbonaceous fuel and emulsifying agent are formed is an external phase, form the water-in-oil-type emulsoid by powerful the shearing 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 dissolving fully, make aqueous phase solution;
2) paraffin, compounded oil and the emulsifying agent of getting above-mentioned parts by weight is heated to 125～130 ℃ in another container, makes paraffin, compounded oil and emulsifier mix even, makes 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;
4) the thick lotion that 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 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 the 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 this salt simultaneously 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.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 dissolving fully, 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 ℃, make paraffin, compounded oil and emulsifier mix even, 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;
4) the thick lotion that 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 dissolving fully, 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 ℃, make paraffin, compounded oil and emulsifier mix even, 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;
4) the thick lotion that 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 dissolving fully, 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 ℃, make paraffin, compounded oil and emulsifier mix even, 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;
4) the thick lotion that 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 (5)
1. high-density rock powdery emulsion explosive is characterized in that comprising 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.
2. the preparation method of the described a kind of high-density rock powdery emulsion explosive of claim 1 is characterized in that 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 dissolving fully, make aqueous phase solution;
2) paraffin, compounded oil and the emulsifying agent of getting above-mentioned parts by weight is heated to 125～130 ℃ in another container, makes paraffin, compounded oil and emulsifier mix even, makes 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;
4) the thick lotion that 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.
3. a kind of high-density rock powdery emulsion explosive according to claim 1 is characterized in that described compounded oil is machine oil, rosin, emulsification special-purpose grease.
4. a kind of high-density rock powdery emulsion explosive according to claim 1 is characterized in that described emulsifying agent is emulsifying agent SP-80, emulsifying agent T152, emulsifying agent T154.
5. 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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| CN 201110113266 CN102241552B (en) | 2011-04-29 | 2011-04-29 | High density rock powdery emulsion explosive and preparation method thereof |
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| CN 201110113266 CN102241552B (en) | 2011-04-29 | 2011-04-29 | High density rock powdery emulsion explosive and preparation method thereof |
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| CN102241552B CN102241552B (en) | 2013-03-27 |
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| CN104276909A (en) * | 2014-09-15 | 2015-01-14 | 山西同德化工股份有限公司 | High-density insensitive rock heavy ammonium nitrate fuel oil explosive |
| 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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| 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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| 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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| CN104276909A (en) * | 2014-09-15 | 2015-01-14 | 山西同德化工股份有限公司 | High-density insensitive rock heavy ammonium nitrate fuel oil explosive |
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| 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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| CN102241552B (en) | 2013-03-27 |
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