CN104276909B - A kind of high density insensitiveness rock titania-mica - Google Patents
A kind of high density insensitiveness rock titania-mica Download PDFInfo
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- CN104276909B CN104276909B CN201410467737.4A CN201410467737A CN104276909B CN 104276909 B CN104276909 B CN 104276909B CN 201410467737 A CN201410467737 A CN 201410467737A CN 104276909 B CN104276909 B CN 104276909B
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Abstract
The invention discloses a kind of high density insensitiveness rock titania-mica, it is that the ammonium nitrate of interpolation 95～98 weight portions and the light diesel fuel of 2～5 weight portions are mixed in the rock emulsifying base of every 100 weight portions, wherein, described rock emulsifying base is made up of 70～75wt% ammonium nitrates, 8～10wt% sodium nitrate, 10～12wt% water, 2～5wt% emulsifying agent, 3～the allotment of 5wt% emulsifying Wax special.The high density insensitiveness rock titania-mica of the present invention has the most remarkable high density and water repelling property, uses and can directly sink under water in having water or muddy water hybird environment, immerses in 1 meter of deep water and can explode completely after 24 hours.High density insensitiveness rock titania-mica plasticity of the present invention is good, has high explosion velocity value and big brisance value, does not the most have cap-sensitivity, produce, store, transport, use safety.
Description
Technical field
The invention belongs to commercial explosive technical field, relate to a kind of titania-mica, particularly relate to a kind of density higher, be suitable under water environment the titania-mica used.
Background technology
Tunnel piercing, quarry operation face there are a large amount of subsoil water, therefore, are continuously increased for tunnel piercing, opencast high density insensitiveness titania-mica demand both at home and abroad.
The common industrial waterproof explosive with cap-sensitivity is mainly formed by containing ammonium nitrate, the water-phase material of sodium nitrate and the oil phase material containing oily substances such as emulsifying agent, paraffin, vaseline, and density is typically 0.95～1.18g/cm3, after powder stick enters the big gun hole of full muddy water, often floated over above, brought certain difficulty to powder charge.
Titania-mica is commercial explosive new varieties emulsion and ammonium nitrate-fuel oil mixture blended by a certain percentage, it is characterized in that water repelling property is good, capacity for work is big, density is adjustable, it is particularly well-suited to the strip mining operation of metallurgy, building materials, coal, big at blasthole diameter, hydrops is many, and have in pre-powder charge and the big blasting engineering of onepull amount and used in a large number.
CN
102675009A discloses a kind of waterproof heavy ammonium nitrate-fuel oil mixture in bulk and preparation method thereof, its proportioning component has 12～16 kind more than, such as ammonium nitrate, water, thiourea, sodium carbonate, acetic acid, sodium nitrite, ammonium nitrate, base oil MV I, base oil HV I, liquid paraffin, lipid polarity polyfunctional group macromolecule emulsifier, soybean lecithin, glycerol monolaurate, alkylphenol polyoxyethylene OP-10, N-domiphen etc..The raw material types that this explosive not only uses is many, and proportioning process is numerous and diverse, and finished explosive products density is at 1.15g/cm3Left and right, the explosive under this density is in muddy water mixing big gun hole, and powder stick is the most easily come by levitating, brings certain difficulty to powder charge, and its scope of application is only limitted to the relatively low Ore of hardness factor and rock blasting.
Summary of the invention
It is an object of the invention to provide the high density insensitiveness rock titania-mica of a kind of high explosion velocity, high brisance, and the preparation method of this explosive.
High density insensitiveness rock titania-mica of the present invention is that the light diesel fuel of the ammonium nitrate and 2～5 weight portions that add 95～98 weight portions in the rock emulsifying base of every 100 weight portions is mixed, wherein, described rock emulsifying base is made up of 70～75wt% ammonium nitrates, 8～10wt% sodium nitrate, 10～12wt% water, 2～5wt% emulsifying agent, 3～the allotment of 5wt% emulsifying Wax special.
In high density insensitiveness rock titania-mica of the present invention, the light diesel fuel used is No. 0 ,-No. 10 ,-No. 20 market available diesel oil.
In the rock emulsifying base that the present invention uses, described emulsifying agent is preferably used 2727B type macromolecule emulsifier.Described emulsifying Wax special is compounded made by machine oil 1～2 weight portion, paraffin 1～1.2 weight portion, microwax 0.1～0.2 weight portion, vaseline 1～1.3 weight portion.
The preparation method of high density insensitiveness rock titania-mica of the present invention is as follows:
1) according to the percentage by weight prepared needed for rock emulsifying base, ammonium nitrate, sodium nitrate are mixed with water, be heated to 110～125 DEG C and make dissolving complete, be prepared as aqueous phase solution.
2) according to the percentage by weight prepared needed for rock emulsifying base, emulsifying agent is mixed with emulsifying Wax special, be heated to 100～120 DEG C and make to dissolve completely, be prepared as oil-phase solution.
3) under the conditions of 120～125 DEG C, described aqueous phase solution and oil-phase solution are added in the emulsator of high-speed stirred, make rock emulsifying base.
4) take in rock emulsifying base 100 weight portion, ammonium nitrate 95～98 weight portion, light diesel fuel 2～5 weight portion addition open type agitator, stir 8～10 minutes, make high density insensitiveness rock titania-mica.
High density insensitiveness rock titania-mica of the present invention be rock emulsifying base is mixed with ammonium nitrate, light diesel fuel after a kind of explosive of obtaining, rock emulsifying base containing about 50wt% and the common ammonium nitrate of about 48wt%, constituent is few, proportioning is simple, production technology is simple, low cost of manufacture, can effectively reduce industrial energy consumption.
The rock emulsifying base that the present invention uses has the most remarkable water repelling property, and after mixing with ammonium nitrate, light diesel fuel, rock emulsifying base is diluted further by diesel oil, can tightly be wrapped up by ammonium nitrate equably, adds the water repelling property of explosive.Under conditions of Packing Sound, immerse in 1 meter of deep water, can explode completely after 24 hours；Under conditions of packages in damaged condition, immerse in 1 meter of deep water, can explode completely after 15 hours.
The rock emulsifying base that the present invention uses also has the most remarkable high density, and density is typically at 1.40g/cm3Above, after mixing with ammonium nitrate, light diesel fuel, density is 1.20～1.33g/cm3It is, bigger than common industrial explosive that (density of common industrial explosive is typically at 1.0g/cm3Left and right), when using in having water or muddy water hybird environment, can directly sink under water, will not float on waterborne, powder charge is very convenient, solves because having water, mud mixture to make explosive floating in big gun hole, powder charge difficulty problem, it is adaptable in, the blasting engineering of hard rock.
The high density insensitiveness rock titania-mica of the present invention does not have cap-sensitivity, needs priming to detonate, substantially increase the safety of powder charge in construction during explosion, produces, stores, transports, uses the most fool proof, stores the phase stable.And the rock emulsifying base that the present invention uses need not sensitization, solves the potential safety hazard that conventional emulsification explosive brings due to sensitization.
Meanwhile, the high density insensitiveness rock titania-mica of the present invention has again high explosion velocity value and big brisance value, its explosion velocity (steel pipe) generally 4000～5000m/s, and brisance (steel pipe) 20～30mm has higher acting ability.
The high density insensitiveness rock titania-mica plasticity of the present invention is good, both the web-like explosive of 70～200mm different sizes can have been dressed up, bulk big bag medicine can also be dressed up for great explosion engineering, improve the motility of powder charge and the popularity of use, applied environment is extensive, it is applicable to the engineering great explosion of complex environment, be particularly well-suited to metallurgy, building materials, the strip mining operation of coal and big at blasthole diameter, hydrops (mud mixture) is many, and have in pre-powder charge and the big blasting engineering of onepull amount and use.
In order to show that high density insensitiveness rock titania-mica of the present invention is stable, excellent explosion property and water resistance, the present invention is done following contrast with existing water-proof emulsion titania-mica, is shown in Table 1.
Table 1 high density insensitiveness rock titania-mica and water-proof emulsion titania-mica performance comparison
| Project | Water-proof emulsion titania-mica | High density insensitiveness rock titania-mica |
| Composition | Many, 12～16 kind of material | Few, 6 kinds of materials |
| Sensitization | There is sensitizer sodium nitrite | It is not required to add sodium nitrite |
| Detonation property | Without cap-sensitivity | Without cap-sensitivity, with 5～10% rock expanded ammonium nitrate explosive or emulsion as priming, can detonation completely |
| Brisance (steel pipe)；mm | --- | 20～30 |
| Explosive density, g/cm3 | 1.15 | 1.20～1.33 |
| Explosion velocity (steel pipe)；m/s | Explosion velocity in 5500(large diameter hole) | 4000～5000 |
| Water-resistance | Have a water resisting property | Have a water resisting property |
Result shows that the density of high density insensitiveness rock titania-mica of the present invention and explosion property are superior to water-proof emulsion titania-mica, is particularly well-suited to there is the great explosion engineering under water or muddy water hybird environment, has good promotional value.
Detailed description of the invention
Embodiment 1
Take ammonium nitrate 73kg, sodium nitrate 9.3kg, be mixed and heated to 121 DEG C with water 11kg, make aqueous phase solution.
Take emulsifying agent 2kg, machine oil 2kg, paraffin 1.2kg, microwax 0.2kg, vaseline 1.3kg mixing, be heated to 112 DEG C, make oil-phase solution.
At 123 DEG C, aqueous phase solution is added together with oil-phase solution in the emulsator of high-speed stirred, make rock emulsifying base.
Being added in open type blender with 96kg ammonium nitrate, 4kg light diesel fuel by above-mentioned rock emulsifying base, stir 8 minutes, packaging makes high density insensitiveness rock titania-mica.
Table 2 high density insensitiveness rock titania-mica test performance
| Project | Performance |
| Detonation property | Rock expanded ammonium nitrate explosive or emulsion with 10% detonate as priming, can detonation completely |
| Brisance, mm | 20.2(steel pipe) |
| Cartridge density, g/cm3 | 1.33 |
| Explosion velocity, m/s | 4717(steel pipe) |
| Water-resistance | Have a water resisting property, in the case of Packing Sound, immerse in 1 meter of deep water, can detonation completely after 24 hours |
Embodiment 2
Take ammonium nitrate 74kg, sodium nitrate 9.5kg, be mixed and heated to 118 DEG C with water 10kg, make aqueous phase solution.
Take emulsifying agent 2.3kg, machine oil 1.8kg, paraffin 1kg, microwax 0.2kg, vaseline 1.2kg mixing, be heated to 106 DEG C, make oil-phase solution.
At 120 DEG C, aqueous phase solution is added together with oil-phase solution in the emulsator of high-speed stirred, make rock emulsifying base.
Being added in open type blender with 95.5kg ammonium nitrate, 4.5kg light diesel fuel by above-mentioned rock emulsifying base, stir 10 minutes, packaging makes high density insensitiveness rock titania-mica.
Table 3 high density insensitiveness rock titania-mica test performance
| Project | Performance |
| Detonation property | Rock expanded ammonium nitrate explosive or emulsion with 5% detonate as priming, can detonation completely |
| Brisance, mm | 23.5(steel pipe) |
| Cartridge density, g/cm3 | 1.34 |
| Explosion velocity, m/s | 4902(steel pipe) |
| Water-resistance | Have a water resisting property, in the case of Packing Sound, immerse in 1 meter of deep water, can detonation completely after 24 hours |
Application examples
Embodiment 2 high density insensitiveness rock titania-mica demolition site applicable cases in Yellow River Bridge Liu family tower section foundation excavation long-hole blasting project.
Demolition site situation: constantly have water to penetrate in the blast hole on limit, the Yellow River, still have the mud mixture of 1～2m after drawing water.
Explosion host rock is limestone, aperture Φ 100mm, hole depth 13～15m, array pitch 3m, pitch-row 4m, single hole explosive payload 80～90kg, and No. 2 rock emulsion explosives using 5% are as priming.
Detonation mode: use 1,5,7 sections of Nonel detonators to detonate, 2, every hole detonator.
Demolition effect: after Φ 90mm high density insensitiveness rock titania-mica is put into big gun hole, explosive can directly sink at the bottom of hole.After detonating, checking demolition site, account for more than 90% less than the rock in 80cm block footpath, through scarfing cinder, bottom surface platform is smooth, does not has residual hole to leave over, has reached explosion requirement.
Claims (3)
1. a high density insensitiveness rock titania-mica, it is that the ammonium nitrate of interpolation 95～98 weight portions and the light diesel fuel of 2～5 weight portions are mixed in the rock emulsifying base of every 100 weight portions, wherein, described rock emulsifying base is made up of 70～75wt% ammonium nitrates, 8～10wt% sodium nitrate, 10～12wt% water, 2～5wt% emulsifying agent, 3～the allotment of 5wt% emulsifying Wax special, and described emulsifying Wax special is compounded made by machine oil 1～2 weight portion, paraffin 1～1.2 weight portion, microwax 0.1～0.2 weight portion, vaseline 1～1.3 weight portion.
High density insensitiveness rock titania-mica the most according to claim 1, is characterized in that described light diesel fuel is No. 0 ,-No. 10 or-No. 20 market available diesel oil.
3. the preparation method of high density insensitiveness rock titania-mica described in claim 1, prepares according to following steps:
1) according to the percentage by weight prepared needed for rock emulsifying base, ammonium nitrate, sodium nitrate are mixed with water, be heated to 110～125 DEG C and make dissolving complete, be prepared as aqueous phase solution；
2) according to the percentage by weight prepared needed for rock emulsifying base, emulsifying agent is mixed with emulsifying Wax special, be heated to 100～120 DEG C and make to dissolve completely, be prepared as oil-phase solution；
3) under the conditions of 120～125 DEG C, described aqueous phase solution and oil-phase solution are added in the emulsator of high-speed stirred, make rock emulsifying base；
4) take in rock emulsifying base 100 weight portion, ammonium nitrate 95～98 weight portion, light diesel fuel 2～5 weight portion addition open type agitator, stir 8～10 minutes, make high density insensitiveness rock titania-mica.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967073A (en) * | 2010-10-11 | 2011-02-09 | 谢斌 | Heavy ammonium nitrate-fuel oil explosive with detonator sensitivity produced by using chemical sensitization |
| CN102241552A (en) * | 2011-04-29 | 2011-11-16 | 中北大学 | High density rock powdery emulsion explosive and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967073A (en) * | 2010-10-11 | 2011-02-09 | 谢斌 | Heavy ammonium nitrate-fuel oil explosive with detonator sensitivity produced by using chemical sensitization |
| CN102241552A (en) * | 2011-04-29 | 2011-11-16 | 中北大学 | High density rock powdery emulsion explosive and preparation method thereof |
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