CN105949013A - Preparation method of mixed emulsion explosive - Google Patents
Preparation method of mixed emulsion explosive Download PDFInfo
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- CN105949013A CN105949013A CN201610286932.6A CN201610286932A CN105949013A CN 105949013 A CN105949013 A CN 105949013A CN 201610286932 A CN201610286932 A CN 201610286932A CN 105949013 A CN105949013 A CN 105949013A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention provides a preparation method of a mixed emulsion explosive. The method comprises the following steps: 1, preparing a water phase: sequentially adding metered ammonium nitrate, sodium nitrate and citric acid to a water phase dissolving tank; 2, preparing an oil phase: sequentially adding metered machine oil, diesel oil and an emulsifier to an oil phase dissolving tank; 3, carrying out primary emulsification; 4, carrying out secondary emulsification; 5, cooling a mixed solution in a secondary emulsifying machine to 30-40DEG C; 6, charging: pumping the cooled mixed solution to a charging machine, and pumping a foaming agent comprising water and sodium nitrite according to a weight ratio of 1:12 to a charging tube in the charging process; and 7, sensitizing. The preparation method of the mixed emulsion explosive has the characteristics of simple process, high processing efficiency and low production cost, and the emulsion explosive prepared through the method has the characteristics of ideal explosion effect and low storage cost.
Description
Technical field
The present invention relates to explosive preparation field, the preparation method of a kind of the mixed loading emulsion explosive.
Background technology
Emulsion is the principal item of current commercial explosive, is the developing direction of industry promotion.Mainly comprising of this explosive
It is using ammonium nitrate, sodium nitrate, water as dispersion phase, with oil phase as continuous phase, forms water in oil structure by emulsifying agent.
It is relatively big that the emulsifying base so formed does not has cap-sensitivity density, reduces density by adding the regulation of a certain amount of sensitizer,
Improve sensitivity.
The Initiation principle of emulsion is referred to as scorching hot core principle, is also hot spot theory.Sensitizer can explode in emulsifying after adding
Forming a lot of scattered minute bubbles in medicine, after blasting cap initiation, shock wave is to explosive effect, the bubble in compression explosive, bubble quilt
Compression can form high temperature hotspot so that explosive initiation.
Emulsion weak effect, complex process and cost that current existing emulsion technique prepares are high.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of the mixed loading emulsion explosive, step includes:
1) aqueous phase configuration
1.1. according to percentage by weight, the water of 11.5% is pumped in aqueous phase dissolved tank, carry out after steam is heated to 70-80 DEG C
Start agitator；
1.2. according to percentage by weight, the ammonium nitrate of 73.5% is put in described aqueous phase dissolved tank；
1.3. according to percentage by weight, the sodium nitrate of 8% is put in described aqueous phase dissolved tank；
1.4. according to percentage by weight, the citric acid of 0.2% is put in described aqueous phase dissolved tank；
1.5. steam heats described aqueous phase dissolved tank, and heating-up temperature is: 90-110 DEG C, and heat time heating time is: 80-100Min；
1.6. the material pumping in described aqueous phase dissolved tank is filtered to filter, the product pump after then filtering
Deliver to aqueous phase holding vessel；
1.7. described aqueous phase accumulator tank temperature is controlled at 100-105 DEG C；
2) oil phase configuration
2.1. oil phase dissolving tank is carried out steam and be heated to 85-90 DEG C；
2.2. according to percentage by weight, the machine oil of 3% is put in described oil phase dissolving tank；
2.3. according to percentage by weight, the diesel oil of 1.5% is put in described oil phase dissolving tank；
2.4. according to percentage by weight, the emulsifying agent of 2% is put in described oil phase dissolving tank；
2.5. steam heats described oil phase dissolving tank, and heating-up temperature is: 90-95 DEG C, and heat time heating time is: 20-30min；
2.6. agitator uniform stirring oil-phase solution is started；
2.7. the material pumping in described oil phase dissolving tank is filtered to filter, the product pump after then filtering
Deliver to oil phase holding vessel；
2.8. described oil phase accumulator tank temperature is controlled at 90-100 DEG C；
3) one-level emulsifying
3.1. oil-phase solution is pumped in one-level mulser according to the speed of 1.17/min；
3.2., after oil-phase solution all pumps and terminates, aqueous phase solution is pumped to one-level mulser according to the speed of 650l/h
In；
3.3., after aqueous phase solution all pumps and terminates, mulser is opened；
3.4. the one-level mulser operation time is: 20-30min, emulsifying temperature is: 80-90 DEG C；
4) two grades of emulsifying
Mixed solution in mulser is pumped in two grades of mulsers carry out emulsifying, and two grades of mulsers run the times and are:
50-60min, emulsifying temperature is 70-80 DEG C；
5) cooling
The mixed solution of two grades of mulsers is cooled down, mixed solution temperature is down to 30-40 DEG C；
6) powder charge
Mixed solution after cooling is pumped to charging machine, during powder charge, is water by components by weight percent proportioning simultaneously:
Sodium nitrite is: the foaming agent of 1:12 pumps into powder charge pipe by lubricating pump；
7) sensitization
Powder charge pipe is carried out the sensitization under water of 5-10min.
Prioritization scheme is: the mesh size of described filter is GF/W0.3/0.125.
Prioritization scheme is: the colloid temperature of described two grades of mulsers outlet is 90-100 DEG C.
Prioritization scheme is: quick-fried body is made up of nitrogelatin and detonator, and described nitrogelatin is placed at the bottom of the hole of described ignition body.
Prioritization scheme is to increase the sand pocket counterweight of 5 on described ignition body.
The preparation method of the mixed loading emulsion explosive of the present invention, has technical process simple, and working (machining) efficiency is high, and production cost is low
Feature, the emulsion prepared by this technique, there is explosive effect preferable, the feature that storage cost is low.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term do not allot one or more its
Its element or the existence of a combination thereof or interpolation.
Embodiment 1
It is an object of the invention to provide the preparation method of a kind of the mixed loading emulsion explosive, step includes:
1) aqueous phase configuration
1.1. according to percentage by weight, the water of 11.5% is pumped in aqueous phase dissolved tank, carry out opening after steam is heated to 70 DEG C
Dynamic agitator；
1.2. according to percentage by weight, the ammonium nitrate of 73.5% is put in described aqueous phase dissolved tank；
1.3. according to percentage by weight, the sodium nitrate of 8% is put in described aqueous phase dissolved tank；
1.4. according to percentage by weight, the citric acid of 0.2% is put in described aqueous phase dissolved tank；
1.5. steam heats described aqueous phase dissolved tank, and heating-up temperature is: 90 DEG C, and heat time heating time is: 80Min；
1.6. the material pumping in described aqueous phase dissolved tank is filtered to filter, the product pump after then filtering
Deliver to aqueous phase holding vessel；
1.7. described aqueous phase accumulator tank temperature is controlled at 100 DEG C；
2) oil phase configuration
2.1. oil phase dissolving tank is carried out steam and be heated to 85 DEG C；
2.2. according to percentage by weight, the machine oil of 3% is put in described oil phase dissolving tank；
2.3. according to percentage by weight, the diesel oil of 1.5% is put in described oil phase dissolving tank；
2.4. according to percentage by weight, the emulsifying agent of 2% is put in described oil phase dissolving tank；
2.5. steam heats described oil phase dissolving tank, and heating-up temperature is: 90 DEG C, and heat time heating time is: 20min；
2.6. agitator uniform stirring oil-phase solution is started；
2.7. the material pumping in described oil phase dissolving tank is filtered to filter, the product pump after then filtering
Deliver to oil phase holding vessel；
2.8. described oil phase accumulator tank temperature is controlled at 90 DEG C；
3) one-level emulsifying
3.1. oil-phase solution is pumped in one-level mulser according to the speed of 1.17/min；
3.2., after oil-phase solution all pumps and terminates, aqueous phase solution is pumped to one-level mulser according to the speed of 650l/h
In；
3.3., after aqueous phase solution all pumps and terminates, mulser is opened；
3.4. the one-level mulser operation time is: 20min, emulsifying temperature is: 80 DEG C；
4) two grades of emulsifying
Mixed solution in mulser is pumped in two grades of mulsers carry out emulsifying, and two grades of mulsers run the times and are:
50min, emulsifying temperature is 70 DEG C；
5) cooling
The mixed solution of two grades of mulsers is cooled down, mixed solution temperature is down to 30 DEG C；
6) powder charge
Mixed solution after cooling is pumped to charging machine, during powder charge, is water by components by weight percent proportioning simultaneously:
Sodium nitrite is: the foaming agent of 1:12 pumps into powder charge pipe by lubricating pump；
7) sensitization
Powder charge pipe is carried out the sensitization under water of 5min.
The mesh size of described filter is GF/W0.3/0.125.
The colloid temperature of described two grades of mulsers outlet is 90 DEG C.
Quick-fried body is made up of nitrogelatin and detonator, and described nitrogelatin is placed at the bottom of the hole of described ignition body.
The sand pocket counterweight of 5 in increasing by one on described ignition body.
Embodiment 2
It is an object of the invention to provide the preparation method of a kind of the mixed loading emulsion explosive, step includes:
1) aqueous phase configuration
1.1. according to percentage by weight, the water of 11.5% is pumped in aqueous phase dissolved tank, carry out opening after steam is heated to 80 DEG C
Dynamic agitator；
1.2. according to percentage by weight, the ammonium nitrate of 73.5% is put in described aqueous phase dissolved tank；
1.3. according to percentage by weight, the sodium nitrate of 8% is put in described aqueous phase dissolved tank；
1.4. according to percentage by weight, the citric acid of 0.2% is put in described aqueous phase dissolved tank；
1.5. steam heats described aqueous phase dissolved tank, and heating-up temperature is: 110 DEG C, and heat time heating time is: 100Min；
1.6. the material pumping in described aqueous phase dissolved tank is filtered to filter, the product pump after then filtering
Deliver to aqueous phase holding vessel；
1.7. described aqueous phase accumulator tank temperature is controlled at 105 DEG C；
2) oil phase configuration
2.1. oil phase dissolving tank is carried out steam and be heated to 90 DEG C；
2.2. according to percentage by weight, the machine oil of 3% is put in described oil phase dissolving tank；
2.3. according to percentage by weight, the diesel oil of 1.5% is put in described oil phase dissolving tank；
2.4. according to percentage by weight, the emulsifying agent of 2% is put in described oil phase dissolving tank；
2.5. steam heats described oil phase dissolving tank, and heating-up temperature is: 95 DEG C, and heat time heating time is: 30min；
2.6. agitator uniform stirring oil-phase solution is started；
2.7. the material pumping in described oil phase dissolving tank is filtered to filter, the product pump after then filtering
Deliver to oil phase holding vessel；
2.8. described oil phase accumulator tank temperature is controlled at 100 DEG C；
3) one-level emulsifying
3.1. oil-phase solution is pumped in one-level mulser according to the speed of 1.17/min；
3.2., after oil-phase solution all pumps and terminates, aqueous phase solution is pumped to one-level mulser according to the speed of 650l/h
In；
3.3., after aqueous phase solution all pumps and terminates, mulser is opened；
3.4. the one-level mulser operation time is: 30min, emulsifying temperature is: 90 DEG C；
4) two grades of emulsifying
Mixed solution in mulser is pumped in two grades of mulsers carry out emulsifying, and two grades of mulsers run the times and are:
50-60min, emulsifying temperature is 80 DEG C；
5) cooling
The mixed solution of two grades of mulsers is cooled down, mixed solution temperature is down to 40 DEG C；
6) powder charge
Mixed solution after cooling is pumped to charging machine, during powder charge, is water by components by weight percent proportioning simultaneously:
Sodium nitrite is: the foaming agent of 1:12 pumps into powder charge pipe by lubricating pump；
7) sensitization
Powder charge pipe is carried out the sensitization under water of 10min.
The mesh size of described filter is GF/W0.3/0.125.
The colloid temperature of described two grades of mulsers outlet is 100 DEG C.
Quick-fried body is made up of nitrogelatin and detonator, and described nitrogelatin is placed at the bottom of the hole of described ignition body.
The sand pocket counterweight of 5 in increasing by one on described ignition body.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed fortune
With, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details.
Claims (5)
1. the preparation method of a mixed loading emulsion explosive, it is characterised in that step includes:
1) aqueous phase configuration
1.1. according to percentage by weight, the water of 11.5% is pumped in aqueous phase dissolved tank, carry out after steam is heated to 70-80 DEG C
Start agitator；
1.2. according to percentage by weight, the ammonium nitrate of 73.5% is put in described aqueous phase dissolved tank；
1.3. according to percentage by weight, the sodium nitrate of 8% is put in described aqueous phase dissolved tank；
1.4. according to percentage by weight, the citric acid of 0.2% is put in described aqueous phase dissolved tank；
1.5. steam heats described aqueous phase dissolved tank, and heating-up temperature is: 90-110 DEG C, and heat time heating time is: 80-100Min；
1.6. the material pumping in described aqueous phase dissolved tank is filtered to filter, the product pump after then filtering
Deliver to aqueous phase holding vessel；
1.7. described aqueous phase accumulator tank temperature is controlled at 100-105 DEG C；
2) oil phase configuration
2.1. oil phase dissolving tank is carried out steam and be heated to 85-90 DEG C；
2.2. according to percentage by weight, the machine oil of 3% is put in described oil phase dissolving tank；
2.3. according to percentage by weight, the diesel oil of 1.5% is put in described oil phase dissolving tank；
2.4. according to percentage by weight, the emulsifying agent of 2% is put in described oil phase dissolving tank；
2.5. steam heats described oil phase dissolving tank, and heating-up temperature is: 90-95 DEG C, and heat time heating time is: 20-30min；
2.6. agitator uniform stirring oil-phase solution is started；
2.7. the material pumping in described oil phase dissolving tank is filtered to filter, the product pump after then filtering
Deliver to oil phase holding vessel；
2.8. described oil phase accumulator tank temperature is controlled at 90-100 DEG C；
3) one-level emulsifying
3.1. oil-phase solution is pumped in one-level mulser according to the speed of 1.17/min；
3.2., after oil-phase solution all pumps and terminates, aqueous phase solution is pumped to one-level mulser according to the speed of 650l/h
In；
3.3., after aqueous phase solution all pumps and terminates, mulser is opened；
3.4. the one-level mulser operation time is: 20-30min, emulsifying temperature is: 80-90 DEG C；
4) two grades of emulsifying
Mixed solution in mulser is pumped in two grades of mulsers carry out emulsifying, and two grades of mulsers run the times and are:
50-60min, emulsifying temperature is 70-80 DEG C；
5) cooling
The mixed solution of two grades of mulsers is cooled down, mixed solution temperature is down to 30-40 DEG C；
6) powder charge
Mixed solution after cooling is pumped to charging machine, during powder charge, is water by components by weight percent proportioning simultaneously:
Sodium nitrite is: the foaming agent of 1:12 pumps into powder charge pipe by lubricating pump；
7) sensitization
Powder charge pipe is carried out the sensitization under water of 5-10min.
The preparation method of the mixed loading emulsion explosive the most according to claim 1, it is characterised in that the mesh chi of described filter
Very little for GF/W0.3/0.125.
The preparation method of the mixed loading emulsion explosive the most according to claim 1, it is characterised in that described two grades of mulsers outlet
Colloid temperature be 90-100 DEG C.
The preparation method of the mixed loading emulsion explosive the most according to claim 1, it is characterised in that ignite body by nitrogelatin and
Detonator forms, and described nitrogelatin is placed at the bottom of the hole of described ignition body.
The preparation method of the mixed loading emulsion explosive the most according to claim 1, it is characterised in that increase by one on described ignition body
The sand pocket counterweight of 5 in individual.
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| CN201610286932.6A CN105949013A (en) | 2016-05-03 | 2016-05-03 | Preparation method of mixed emulsion explosive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114768618A (en) * | 2022-05-06 | 2022-07-22 | 山西省民爆集团有限公司 | Rapid preparation method of composite oil phase for preparing emulsion explosive |
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| CN105001026A (en) * | 2015-07-17 | 2015-10-28 | 刘发利 | On-site mixed loading emulsion explosive and preparation method thereof |
| CN105218282A (en) * | 2015-08-25 | 2016-01-06 | 宜兴市阳生化工有限公司 | Gluey emulsion explosive of a kind of low temperature resistant water resisting property and preparation method thereof |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4525225A (en) * | 1984-03-05 | 1985-06-25 | Atlas Powder Company | Solid water-in-oil emulsion explosives compositions and processes |
| CN1336355A (en) * | 2000-08-02 | 2002-02-20 | 南京理工大学 | Coal mine allowable powdered emulsified explosive and its production process |
| CN102173967A (en) * | 2011-01-17 | 2011-09-07 | 广东宏大爆破股份有限公司 | Emulsion explosive and preparation method thereof |
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| CN103626615A (en) * | 2013-12-19 | 2014-03-12 | 宜兴市阳生化工有限公司 | MY type colloid emulsified civil explosive and production process thereof |
| CN104262067A (en) * | 2014-10-20 | 2015-01-07 | 张亦彬 | Method for preparing emulsion explosive by high-temperature sensitization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114768618A (en) * | 2022-05-06 | 2022-07-22 | 山西省民爆集团有限公司 | Rapid preparation method of composite oil phase for preparing emulsion explosive |
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Application publication date: 20160921 |