CN104311373B - Three-level allowed for use in coal mines safety and environmental protection emulsion and preparation method thereof - Google Patents
Three-level allowed for use in coal mines safety and environmental protection emulsion and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of three-level allowed for use in coal mines safety and environmental protection emulsion, three-level allowed for use in coal mines safety and environmental protection emulsion includes following components：Ammonium nitrate, sodium nitrate, habit modifier, blast reducer, water, foaming agent, foamed promoter, compound additive, oil phase material, compound emulsifying agent, emulsion adjuvant and mischmetal, ammonium nitrate, sodium nitrate, habit modifier, blast reducer and water constitute oxidizing agent solution, and oil phase material, compound emulsifying agent and emulsion adjuvant constitute combustible solution；The present invention also designs a kind of preparation method of three-level allowed for use in coal mines safety and environmental protection emulsion, the emulsion explosion velocity is high, brisance is big, degree of coupling is high, blasting fume is few, and with low cost, and medicine state is harder, capacity for work is strong, toxic gas is few in the preparation, it is possible to increase the security of operating personnel and environmental protection, and preparation is simple.
Description
Technical field
The present invention relates to a kind of emulsion and preparation method thereof, and in particular to a kind of three-level allowed for use in coal mines safety and environmental protection breast
Change explosive and preparation method, belong to explosive manufacture field.
Background technology
Mining technology refers to manually or machinery is to the production technique of the natural mineral resource for having value.According to
The requirement of the different and rationality of technique and economy of mineral deposit buried depth, mining technology is divided into strip mining transformation and underground mining two
The mode of kind.Strip mining transformation is used with shallower part is buried close to earth's surface, deep uses underground mining, wherein used using colliery frying
It is to operate more convenient, one of mode of quick result at present that medicine carries out exploitation to mine.
At present, the explosive kind for using within coal mines includes：Nitrolite, aqueous gels and emulsion, wherein ammonium nitrate
Explosive is because detonation occupational disease that seriously, the toxicity of effluent, production process danger and TNT is not caused etc. has been put into elimination product
Kind, aqueous gels have the shortcomings that relatively costly emulsion relative to other two kinds of explosive applications more commonly, but existing skill
Though emulsion explosion velocity in art is high, quick-fried power is relatively small, and using dangerous, powder stick is yielding, causes underground powder charge difficult,
Overlong time, meanwhile, it is also easy to pollute the clothing of operator, it is difficult to remove, there is provided use in a kind of colliery that can overcome disadvantages described above
Emulsion and preparation method thereof cost those skilled in the art technical problem urgently to be resolved hurrily.
The content of the invention
The technical problems to be solved by the invention are, for the shortcoming that above prior art is present, propose a kind of three-level coal
Ore deposit safety and environmental protection emulsion allowable and preparation method thereof, the emulsion explosion velocity is high, brisance big, and degree of coupling is high, and blasting fume is few,
And it is with low cost, medicine state is harder, and capacity for work is strong, and preparation is simple, and toxic gas is few in preparation process, can
Improve security and the environmental protection of operating personnel.
The present invention solve above technical problem technical scheme be：
A kind of three-level allowed for use in coal mines safety and environmental protection emulsion, three-level allowed for use in coal mines safety and environmental protection emulsion presses quality hundred
Dividing ratio includes following components：
Ammonium nitrate：60-65%, sodium nitrate：8-11%, habit modifier：3-6%, blast reducer：6-10%, water：8-10%, foaming
Agent：0.2-0.4%, foamed promoter：0.1-0.3%, compound additive：0.5-0.8%, oil phase material：4-6%, compound emulsifying agent：
3-5%, emulsion adjuvant：0.3-0.5%, mischmetal：0.15-0.20%, above each component sum is 100%；
Wherein：Ammonium nitrate, sodium nitrate, habit modifier, blast reducer and water constitute oxidizing agent solution, oil phase material, multiple
Co-emulsifier and emulsion adjuvant constitute combustible solution；
Habit modifier is the one kind in methyl naphthalene sulfonic acid sodium, dodecyl sodium sulfate or neopelex；Disappear
Flame agent is formed by NaCl and KCl compoundings, NaCl according to the mass fraction：4-6 parts, KCl：2-4 parts；Compound emulsifying agent is Sorbitan
Sorbitane monooleate and succimide are mixed, and emulsion adjuvant is DRQ type emulsion adjuvants；
Mischmetal is lanthanum, cerium, praseodymium and samarium powder, and wherein cerium accounts for the 55% of mischmetal gross weight, and it is total that lanthanum accounts for mischmetal
The 20% of weight, praseodymium accounts for the 10% of mischmetal gross weight, and samarium accounts for the 15% of mischmetal gross weight.
The technical scheme that further limits of the invention is：
In foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, blast reducer is made up of potassium chloride, sodium chloride and acid amides,
Potassium chloride according to the mass fraction：5-8 parts, sodium chloride is 6-8 parts, acid amides 2-3 parts.
In foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, foaming agent is dinitrosopentamethlyene tetramine or nitrous
One kind in sour potassium or two kinds.
In foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, foamed promoter is acetic acid or sulfuric acid.
In foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, compound additive is polyalcohol and k12Surfactant is pressed
1:1 weight ratio is mixed.
In foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, oil phase material is that complex wax and microwax are constituted, and is combined
Wax is MF-1 or MF-2 complex wax.
In foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, in compound emulsifying agent dehydrating sorbitol monooleate and
Succimide is by weight 1:1 or 1.6:0.4 mixing.
A kind of preparation method of three-level allowed for use in coal mines safety and environmental protection emulsion, specifically includes following steps：
Step one：By the ammonium nitrate in above-mentioned formula, sodium nitrate, habit modifier, blast reducer and water put into sandwich and
It is uniform with steam heating stirring in the dissolving tank of agitating device, temperature is heated to for 85 DEG C -90 DEG C, insulation 15-20min is shut down,
Oxidizing agent solution is obtained, oxidizing agent solution is filtered stand-by through filter again；
Step 2：Oil phase material in above-mentioned formula, compound emulsifying agent and emulsion adjuvant are put into sandwich and stirring dress
It is uniform with steam heating stirring in the melting pot put, temperature is heated to for 100 DEG C -105 DEG C, insulation 9-11min is shut down, it is obtained
Combustible solution, filters stand-by by combustible solution through filter；
Step 3：Emulsifier will be sent into through the combustible solution after filter, after stability of flow, open emulsifier, then
Oxidizing agent solution in feeding step one after filtering, under the high-speed stirred of mulser, combustible solution is foreign minister, oxidant
Solution is that interior phase is obtained process of dynamite substrate；
Step 4：The process of dynamite substrate that will be obtained in step 3 is cooled to temperature for 45 DEG C -50 DEG C；
Step 5：Foaming agent, foamed promoter mixing normal temperature is stand-by, and add cooling after process of dynamite substrate and
Compound additive, mischmetal stirring mixing, temperature are kept for 80 DEG C -90 DEG C, and the time is 25-30s, is cooled to room temperature, and tool is obtained
There is the three-level allowed for use in coal mines safety and environmental protection emulsion of detonation sensitivity；
Step 6：Powder charge and packaging：The hollow medicament of different size is dressed up using charging machine to roll up, and nest mouthful, obtain final product three-level
Allowed for use in coal mines safety and environmental protection emulsion finished product；Powder-charge temperature is 50 DEG C -55 DEG C；Cartridge density：0.85g/cm3~1.05 g/
cm3。
The technical scheme that further limits of the invention is：
In the preparation method of foregoing three-level allowed for use in coal mines safety and environmental protection emulsion, the emulsification of three-level allowed for use in coal mines safety and environmental protection
The technical indicator of explosive：Explosion velocity/（m/s-1）:3000-3800, gap distance/cm：>=4, brisance/mm：>=11, capacity for work/
mL：>=210, toxic gas content/（L/Kg）：≤75.
The beneficial effects of the invention are as follows：
Ammonium nitrate in the present invention：60-65%, sodium nitrate：8-11%, sodium nitrate can provide part oxygen, play part " flame arrest "
And crystallization point effect is reduced, and ammonium nitrate content is improved as far as possible, nitric acid sodium content is reduced, be conducive to improving the stabilization of detonation sensitivity
Property.
Habit modifier is with the addition of in the present invention, as the habit modifier of ammonium nitrate, is used to control the crystal grain of ammonium nitrate
Development, it is to avoid square or column bulky grain occur, so as to improve the plasticity of explosive, improve its detonation susceptibility.
Blast reducer is with the addition of in the present invention, blast reducer can reduce its quick-fried gentle quick-fried heat in Lithium Oxides By Detonation With Emulsion Explosive, shorten
The length of explosive flame and retention time, thus ensure its Fire behavior and blast reducer by NaCl and KCl compounding form drop
Inexpensive flame arrest effect is more preferable；Meanwhile, the blast reducer in the present invention is all added in oxidizing agent solution, and this mode can meet
Physical sensitization product adapts to chemical sensitization product requirement again, and product quality is stable, easy to operate, and blast reducer consumption is again few, disappears
Flame effect is good, and degree of safety is high；Containing a certain amount of Nacl and water in emulsion explosive for coal mine, and the flame arrest in emulsion
When agent is dissolved mainly in aqueous oxidizing agent solution, tiny crystal grains are formed in blast process, with larger specific surface area, dispersion
Uniformly, flame arrest effect is good；Appropriate blast reducer can ensure the degree of safety of emulsion explosive for coal mine, but excessively can make detonation again
Sensitivity and brisance are reduced, therefore the addition of blast reducer should be defined by meeting the security of emulsion explosive for coal mine.
The advantage that blast reducer is added in aqueous oxidizing agent solution is：(1) oxidizing agent solution crystalline form can be changed, beneficial to anti-
Only phase transformation, improves system stability and product storage period.(2) be conducive to inorganic chemistry to be sensitized, advantageously reduce cost, work
Industry salt is simple to operate without processing again.
The measures such as present invention selection suitable oxidant, blast reducer, water, fuel agent mass fraction improve its security, rise
Quick-fried sensitivity and detonation stability.
Using the water of 8-10% in the present invention, the high temperature produced during explosive charge is vaporized water into, and consumes a part of energy
Amount, produced heat reduces by 230 kJ/kg when can so make explosive charge.
A kind of polyalcohol and k are added in the present invention in aqueous oxidizing agent solution12Surfactant is used as compound additive
To reduce water phase crystallization point, hydrogen bond can be formed between ammonium nitrate molecule and polyalcohol, due to reducing between ammonium nitrate molecule
Active force, so that its crystallization point declines；Meanwhile, add blast reducer also further to change system crystalline form in water phase, in being beneficial to,
It is low temperature emulsified.
The compound oil phase material based on complex wax is have selected, the complex wax calorific value is high, modest viscosity, with suitable drop
Point and oil content, have good matching with emulsifying agent, separately add a small amount of crystal grain relatively thin, fusing point microwax higher, make to be obtained
Emulsion explosive for coal mine form it is harder, it is easy to suction slip gas, be conducive to improve explosive detonation sensitivity and product shelf life.
Emulsifying agent quality, content and viscosity to emulsifying process, the quality of gel, interior phase particle size, explosion property,
Storage stability etc. has obvious influence.Single dehydrating sorbitol monooleate（Span-80）With initial performance is good, breast
Change the advantage that low intensity and raw material are easy to get, but its production emulsion storage period poor performance, especially to the explosive of chemical sensitization
Product shelf life is unfavorable；Succimide has that relative molecular weight is big, viscosity is high, it is water insoluble, be soluble in machine oil and organic
The features such as solvent, stable performance itself, but emulsion strength requirement is high, it is unfavorable in security.Both selections of the invention
Compounding, takes dehydrating sorbitol monooleate during compounding：Succimide is 1:1 or 1.6:0.4 mixing, while adding certain
Amount emulsion adjuvant (DRQ), it is favorably improved easy milkiness and explosive storage stability, and both mixing shapes have been selected in the present invention
Into mixed emulsifier, with viscosity is big, good film-forming property and the features such as molecular structure stabilized, both solve viscosity problem, and
Obtain good emulsifying effectiveness, product storage stabilization.
DRQ type emulsion adjuvants are chosen in the present invention, the emulsion adjuvant is polar organic matter, can be had well with emulsifying agent
Matching, can play emulsification facilitation well, during emulsification, make original intermolecular strong interaction i.e. interface
Power is down to lower, Interfacial Adsorption enhancing, and intermolecular arrangements are even closer, and compound film-strength is improved, and form the interface of fastening
Film, so as to improve easy milkiness.
Three-level allowed for use in coal mines safety and environmental protection emulsion of the present invention in combustible solution due to being added without blast reducer and use
The technical measures such as compound emulsifying agent, additive, emulsion adjuvant, foaming agent, make three-level coal-mining emulsifying explosive have brisance, induced detonation away from
From and the performance advantage such as medicine body is tack-free outside, its explosion velocity and capacity for work are higher, and storage period is longer, and hardness is bigger, be demonstrated by compared with
Good powder stick mouldability and general applicability, with very strong application value and market prospects.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of three-level allowed for use in coal mines safety and environmental protection emulsion, the emulsification of three-level allowed for use in coal mines safety and environmental protection
Explosive includes following components by mass percentage：
Ammonium nitrate：62%, sodium nitrate：8%, neopelex：3%, blast reducer：10%, water：8%, dinitroso five
Methine tetramine：0.3%, sulfuric acid：0.25%, polyalcohol：0.4%, k12Surfactant：0.4%, MF-2 complex wax：2%, crystallite
Wax：2%, dehydrating sorbitol monooleate：1.5%, succimide：1.5%, DRQ type emulsion adjuvant：0.5%, mischmetal：
0.15%；
Wherein：Ammonium nitrate, sodium nitrate, habit modifier, blast reducer and water constitute oxidizing agent solution, oil phase material, multiple
Co-emulsifier and emulsion adjuvant constitute combustible solution；
Blast reducer is formed by NaCl and KCl compoundings, NaCl according to the mass fraction：6 parts, KCl：4 parts；Mischmetal be lanthanum,
Cerium, praseodymium and samarium powder, wherein cerium account for the 55% of mischmetal gross weight, and lanthanum accounts for the 20% of mischmetal gross weight, and it is dilute that praseodymium accounts for mixing
The 10% of native gross weight, samarium accounts for the 15% of mischmetal gross weight；Blast reducer is made up of potassium chloride, sodium chloride and acid amides, by matter
Amount number meter potassium chloride：5 parts, sodium chloride is 7 parts, 2 parts of acid amides.
The technical indicator of the three-level allowed for use in coal mines safety and environmental protection emulsion：Explosion velocity/（m/s-1）：3000, gap distance/
cm：>=4, brisance/mm：>=11, capacity for work/mL：>=210, toxic gas content/（L/Kg）：≤75.
Embodiment 2
The present embodiment provides a kind of three-level allowed for use in coal mines safety and environmental protection emulsion, the emulsification of three-level allowed for use in coal mines safety and environmental protection
Explosive includes following components by mass percentage：
Ammonium nitrate：60%, sodium nitrate：9%, methyl naphthalene sulfonic acid sodium：4%, blast reducer：7%, water：9%, potassium nitrite：0.4%, vinegar
Acid：0.3%, polyalcohol：0.35%, k12Surfactant：0.35%, MF-1 complex wax：2.5%, microwax：2.5%, Sorbitan
Sorbitane monooleate：3.2%, succimide：0.8%, DRQ type emulsion adjuvant：0.4%, mischmetal：0.2%；
Wherein：Ammonium nitrate, sodium nitrate, habit modifier, blast reducer and water constitute oxidizing agent solution, oil phase material, multiple
Co-emulsifier and emulsion adjuvant constitute combustible solution；
Blast reducer is formed by NaCl and KCl compoundings, NaCl according to the mass fraction：4 parts, KCl：3 parts；Mischmetal be lanthanum,
Cerium, praseodymium and samarium powder, wherein cerium account for the 55% of mischmetal gross weight, and lanthanum accounts for the 20% of mischmetal gross weight, and it is dilute that praseodymium accounts for mixing
The 10% of native gross weight, samarium accounts for the 15% of mischmetal gross weight；Blast reducer is made up of potassium chloride, sodium chloride and acid amides, by matter
Amount number meter potassium chloride：8 parts, sodium chloride is 6 parts, 3 parts of acid amides.
The technical indicator of the three-level allowed for use in coal mines safety and environmental protection emulsion：Explosion velocity/（m/s-1）：3800, gap distance/
cm：>=4, brisance/mm：>=11, capacity for work/mL：>=210, toxic gas content/（L/Kg）：≤75.
Embodiment 3
The present embodiment provides a kind of three-level allowed for use in coal mines safety and environmental protection emulsion, the emulsification of three-level allowed for use in coal mines safety and environmental protection
Explosive includes following components by mass percentage：
Ammonium nitrate：63%, sodium nitrate：8%, dodecyl sodium sulfate：4%, blast reducer：6%, water：8%, five first of dinitroso
Urotropine：0.4%, acetic acid：0.3%, polyalcohol：0.3%, k12Surfactant：0.3%, MF-2 complex wax：3%, microwax：3%,
Dehydrating sorbitol monooleate：1.5%, succimide：1.5%, emulsion adjuvant：0.5%, mischmetal：0.2%；
Wherein：Ammonium nitrate, sodium nitrate, habit modifier, blast reducer and water constitute oxidizing agent solution, oil phase material, multiple
Co-emulsifier and emulsion adjuvant constitute combustible solution；
Blast reducer is formed by NaCl and KCl compoundings, NaCl according to the mass fraction：5 parts, KCl：2 parts；Mischmetal be lanthanum,
Cerium, praseodymium and samarium powder, wherein cerium account for the 55% of mischmetal gross weight, and lanthanum accounts for the 20% of mischmetal gross weight, and it is dilute that praseodymium accounts for mixing
The 10% of native gross weight, samarium accounts for the 15% of mischmetal gross weight；Blast reducer is made up of potassium chloride, sodium chloride and acid amides, by matter
Amount number meter potassium chloride：7 parts, sodium chloride is 8 parts, 3 parts of acid amides.
The technical indicator of the three-level allowed for use in coal mines safety and environmental protection emulsion：Explosion velocity/（m/s-1）：3500, gap distance/
cm：>=4, brisance/mm：>=11, capacity for work/mL：>=210, toxic gas content/（L/Kg）：≤75.
Embodiment 4
The present embodiment provides the preparation method of three-level allowed for use in coal mines safety and environmental protection emulsion in embodiment 1-3, specific behaviour
Make step as follows：
Step one：By the ammonium nitrate in above-mentioned formula, sodium nitrate, habit modifier, blast reducer and water put into sandwich and
It is uniform with steam heating stirring in the dissolving tank of agitating device, temperature is heated to for 85 DEG C -90 DEG C, insulation 15-20min is shut down,
Oxidizing agent solution is obtained, oxidizing agent solution is filtered stand-by through filter again；
Step 2：Oil phase material in above-mentioned formula, compound emulsifying agent and emulsion adjuvant are put into sandwich and stirring dress
It is uniform with steam heating stirring in the melting pot put, temperature is heated to for 100 DEG C -105 DEG C, insulation 9-11min is shut down, it is obtained
Combustible solution, filters stand-by by combustible solution through filter；
Step 3：Emulsifier will be sent into through the combustible solution after filter, after stability of flow, open emulsifier, then
Oxidizing agent solution in feeding step one after filtering, under the high-speed stirred of mulser, combustible solution is foreign minister, oxidant
Solution is that interior phase is obtained process of dynamite substrate；
Step 4：The process of dynamite substrate that will be obtained in step 3 is cooled to temperature for 45 DEG C -50 DEG C；
Step 5：Foaming agent, foamed promoter mixing normal temperature is stand-by, and add cooling after process of dynamite substrate and
Compound additive, mischmetal stirring mixing, temperature are kept for 80 DEG C -90 DEG C, and the time is 25-30s, is cooled to room temperature, and tool is obtained
There is the three-level allowed for use in coal mines safety and environmental protection emulsion of detonation sensitivity；
Step 6：Powder charge and packaging：The hollow medicament of different size is dressed up using charging machine to roll up, and nest mouthful, obtain final product three-level
Allowed for use in coal mines safety and environmental protection emulsion finished product；Powder-charge temperature is 50 DEG C -55 DEG C；Cartridge density：0.85g/cm3~1.05 g/
cm3。
In addition to the implementation, the present invention can also have other embodiment.All use equivalents or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (7)
1. a kind of three-level allowed for use in coal mines safety and environmental protection emulsion, it is characterised in that：The three-level allowed for use in coal mines safety and environmental protection breast
Change explosive includes following components by mass percentage：
Ammonium nitrate：60-65%, sodium nitrate：8-11%, habit modifier：3-6%, blast reducer：6-10%, water：8-10%, hair
Infusion：0.2-0.4%, foamed promoter：0.1-0.3%, compound additive：0.5-0.8%, oil phase material：4-6%, is combined
Emulsifying agent：3-5%, emulsion adjuvant：0.3-0.5%, mischmetal：0.15-0.20%, above each component sum is 100%；
Wherein：Described ammonium nitrate, sodium nitrate, habit modifier, blast reducer and water constitute oxidizing agent solution, oil phase material,
Compound emulsifying agent and emulsion adjuvant constitute combustible solution；Described compound additive is polyalcohol and k12Surfactant is pressed
1:1 weight ratio is mixed；
Described habit modifier is the one kind in methyl naphthalene sulfonic acid sodium, dodecyl sodium sulfate or neopelex；
Described blast reducer is formed by NaCl and KCl compoundings, NaCl according to the mass fraction：4-6 parts, KCl：2-4 parts；Described Composite Milk
Agent is that dehydrating sorbitol monooleate and succimide are mixed, and described emulsion adjuvant is DRQ type emulsion adjuvants；
Described mischmetal is lanthanum, cerium, praseodymium and samarium powder, and wherein cerium accounts for the 55% of mischmetal gross weight, and it is dilute that lanthanum accounts for mixing
The 20% of native gross weight, praseodymium accounts for the 10% of mischmetal gross weight, and samarium accounts for the 15% of mischmetal gross weight.
2. three-level allowed for use in coal mines safety and environmental protection emulsion according to claim 1, it is characterised in that：Described foaming agent
It is the one kind in dinitrosopentamethlyene tetramine or potassium nitrite or two kinds.
3. three-level allowed for use in coal mines safety and environmental protection emulsion according to claim 1, it is characterised in that：Described foaming promotees
Enter agent for acetic acid or sulfuric acid.
4. three-level allowed for use in coal mines safety and environmental protection emulsion according to claim 1, it is characterised in that：Described oil phase material
Expect to be complex wax and microwax, described complex wax is MF-1 or MF-2 complex wax.
5. three-level allowed for use in coal mines safety and environmental protection emulsion according to claim 1, it is characterised in that：Described Composite Milk
Dehydrating sorbitol monooleate and succimide are by weight 1 in agent:1 or 1.6:0.4 mixing.
6. the preparation method of three-level allowed for use in coal mines safety and environmental protection emulsion as claimed in claim 1, it is characterised in that specific bag
Include following steps：
Step one：Ammonium nitrate in above-mentioned formula, sodium nitrate, habit modifier, blast reducer and water are put into sandwich and stirring
It is uniform with steam heating stirring in the dissolving tank of device, temperature is heated to for 85 DEG C -90 DEG C, insulation 15-20min is shut down, it is obtained
Oxidizing agent solution, filters stand-by through filter again by oxidizing agent solution；
Step 2：Oil phase material in above-mentioned formula, compound emulsifying agent and emulsion adjuvant are put into sandwich and agitating device
It is uniform with steam heating stirring in melting pot, temperature is heated to for 100 DEG C -105 DEG C, insulation 9-11min is shut down, it is obtained flammable
Thing solution, filters stand-by by combustible solution through filter；
Step 3：Emulsifier will be sent into through the combustible solution after filter, after stability of flow, open emulsifier, be re-fed into
Oxidizing agent solution in step one after filtering, under the high-speed stirred of mulser, combustible solution is foreign minister, oxidizing agent solution
For interior phase is obtained process of dynamite substrate；
Step 4：The process of dynamite substrate that will be obtained in step 3 is cooled to temperature for 45 DEG C -50 DEG C；
Step 5：Foaming agent, foamed promoter mixing normal temperature is stand-by, and add the process of dynamite substrate after cooling and be combined
Additive, mischmetal stirring mixing, temperature are kept for 80 DEG C -90 DEG C, and the time is 25-30s, is cooled to room temperature, is obtained with quick-fried
The three-level allowed for use in coal mines safety and environmental protection emulsion of Hong sensitivity；
Step 6：Powder charge and packaging：The hollow medicament of different size is dressed up using charging machine to roll up, and nest mouthful, obtain final product three-level colliery
Safety and environmental protection emulsion finished product allowable；Powder-charge temperature is 50 DEG C -55 DEG C；Cartridge density：0.85g/cm3~1.05g/cm3。
7. the preparation method of three-level allowed for use in coal mines safety and environmental protection emulsion according to claim 6, it is characterised in that：It is obtained
Three-level allowed for use in coal mines safety and environmental protection emulsion technical indicator：Explosion velocity/(m/s):3000-3800, gap distance/cm：≥
4, brisance/mm：>=11, capacity for work/mL：>=210, toxic gas content/(L/Kg)：≤75.
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| GB1106529A (en) * | 1965-06-21 | 1968-03-20 | Exchem Holdings | Improvements in ammonium nitrate explosive compositions |
| JPS56155087A (en) * | 1980-04-28 | 1981-12-01 | Nippon Kayaku Kk | Stable explosive composition |
| US4547232A (en) * | 1984-09-24 | 1985-10-15 | Hercules Incorporated | Sensitization of water-in-oil emulsion explosives |
| CN1626480A (en) * | 2003-12-08 | 2005-06-15 | 张家星 | New method for emulsifyintg explosive compound |
| CN1305815C (en) * | 2004-08-26 | 2007-03-21 | 煤炭科学研究总院爆破技术研究所 | Pressure resistant emulsified explosive |
| CN102252571A (en) * | 2010-05-21 | 2011-11-23 | 南京理工大学 | Solid-state emulsion explosive seismic source grain and preparation method thereof |
| CN102001901B (en) * | 2010-12-08 | 2012-12-19 | 北京北矿亿博科技有限责任公司 | Method for manufacturing allowable emulsion explosive for coal mine |
| CN102503742B (en) * | 2011-11-10 | 2014-10-29 | 国营九八一五厂 | Three-grade coal mine allowable emulsified explosive and preparation method thereof |
| CN103626615B (en) * | 2013-12-19 | 2016-04-06 | 宜兴市阳生化工有限公司 | The gluey emulsification civil explosive of a kind of MY type and production technique thereof |
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