CN102503740A - Foaming agent for emulsion explosive and preparation method thereof - Google Patents
Foaming agent for emulsion explosive and preparation method thereof Download PDFInfo
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- CN102503740A CN102503740A CN2011103202463A CN201110320246A CN102503740A CN 102503740 A CN102503740 A CN 102503740A CN 2011103202463 A CN2011103202463 A CN 2011103202463A CN 201110320246 A CN201110320246 A CN 201110320246A CN 102503740 A CN102503740 A CN 102503740A
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Abstract
The invention discloses a foaming agent for an emulsion explosive and a preparation method thereof. The foaming agent comprises a sensitizing agent component (A) and an accelerating agent component (B), wherein the weight ratio of the component (B) to the component (A) is 0.2-0.5. Therefore, a foaming time of the emulsion explosive can be controlled. A method for prolonging a storage period of the emulsion explosive comprises the following steps of: converting an sensitizing agent from a liquid state to colloid fluid by emulsifying the sensitizing agent so that NO<2-> and NH<4+> which are originally free are covered in a water-in-oil manner; and adding different amounts of accelerating agent so that the purpose of taking the foaming agent according to a user amount is achieved. The amount and the speed of generating N2 are controlled, and the foaming time and the bubble size of the emulsion explosive are effectively controlled, so that the properties and the stability in the storage period of the emulsion explosive are greatly improved.
Description
Technical field
The present invention relates to the industrial explosive production field, disclose a kind of efficient, cheap, technology is simple, especially a kind of whipping agent can improve emulsion [explosive performance and shelf life stability.
Background technology
Present domestic explosive production industry emulsion [explosive sensitization technology mainly comprises chemical sensitization and two kinds of technologies of physical sensitization; Wherein physical sensitization mainly adopts hollow glass micro-ball, pearlstone etc. as carrier; The emulsion [explosive that pearlstone is processed is not enough to emulsion matrix Auto-regulating System of Density of Heavy Medium dynamics; Making processes is easy to enriched by matrix because of equipment stirs cavity, can not form effective bubble, does not have sensibilized; At a small amount of breakdown of emulsion of shelf lives internal cause matrix, oily matter is easy to be penetrated in the air cavity, makes emulsion [explosive lose cap-sensitivity, and explosive miss-fires.Physics adds glass microsphere; Method is simple, density is controlled easily, and because of the sealing of its cavity, institute is so that emulsion [explosive is difficult for getting into cavity at manufacturing processed and storage process mesostroma and oily matter; Thereby guaranteed the performance of explosive; But it costs an arm and a leg, and the cost of explosive is improved, and manufacturer is unwilling to select this kind sensitizing agent.Because the chemicalfoaming method mainly is under the promotor effect, to generate tiny nitrogen bubble with a spot of sensitizing agent; Reached the purpose of sensitization,, accurately measured the back through volume pump and add again because of the two is liquid; Simple to operate, foaming effect good, cost is low, so receive the favor of manufacturer.But present sensitizing agent liquid state causes free NO
2 -With NH
4 +Too much, make bubbles volume and foaming intensity be difficult to control, perhaps foaming is slow for explosive forfeiture cap-sensitivity to cause bubble coalescence to break, and causes aftereffect to be difficult to control, and explosive matrix has overflow phenomena, influences the finished product packing quality, and shelf life stability also is difficult to ensure.
Therefore seek a kind of efficient, cheap, technology is simple, the whipping agent that can improve emulsion [explosive performance and shelf life stability has crucial meaning.
Summary of the invention
The present invention be directed to above problem; A kind of efficient, cheap, simple emulsion [explosive whipping agent of technology and preparation method thereof is provided; Can control emulsion [explosive foamed time, foaming intensity, bubble size, thereby reach the purpose that improves emulsion [explosive performance and shelf life stability.
For realizing above purpose, emulsion [explosive whipping agent of the present invention comprises sensitizing agent component (A), promoter component (B):
Wherein to account for explosive matrix weight proportion be 5～10 ‰ to component (A),
It is 0.2～0.6 times that component (B) accounts for component (A) quality proportioning,
The Span-80 of component (A) adding 2～3% has realized that liquid transformation is a liliquoid.
Span-80 formal name used at school sorbitan monooleate, chemical formula: C
24H
44O
6, molecular weight: 428, oxygen balance-2.39, outward appearance: amber to brown thickness oily matter; Span-80 is a combustiblematerials, when envrionment temperature too high and around when naked light is arranged, cause burning easily; It is sorbyl alcohol and oleic acid under certain temperature and vacuum condition through catalyst action and a kind of non-ionic polyol class of synthetic tensio-active agent, use in a large number in the production of emulsion [explosive as emulsifying agents.
Component (B) is selected for use more efficiently, and oxalic acid is that starting material have reduced manufacturing cost significantly.
Oxalic acid formal name used at school oxalic acid, chemical formula: C2H2O4, molecular weight: 90, outward appearance: white powder or colourless transparent crystal; Fusing point: 101～102 ℃, 1g can be dissolved in the 7ml water, in the 2ml boiling water; Skin and mucous membrane there are pungency corrosive nature, low toxicity; Ka1=5.9*10-2, Ka2=6.4*10-5, because of dissociate secondary than phosphoric acid of its secondary dissociates and exceeds 3 one magnitude, institute so that its produce in actual amount significantly reduce, reduced material cost significantly.
A kind of preparation method of emulsion [explosive whipping agent may further comprise the steps:
(1) sensitizing agent configuration: the quality proportioning is seen five kinds of starting material of table 1, at first water, an ammonium nitrate, three kinds of materials of Sodium Nitrite is dropped into the aqueous phase dissolved jar successively, processes to put into the sensitizing agent mixing tank behind the aqueous phase solution and store; Once more Span-80, diesel oil are dropped into sensitizing agent mixing tank and stirring successively, make mixture by liquid transformation collagen fluid, original free NO
2 -With NH
4 +Get up through water in oil wrapped, reached the purpose of what getting with what;
Each material proportioning table of table 1 sensitizing agent (A) component
(2) promotor configuration: with stirring in the Powdered oxalic acid input water, dissolved dilution becomes the mass ratio of oxalic acid and water to be preferably 1.3: 100 artillery clearweed aqueous acid; What and intensity with the promotor control bubble generation that adds different mass;
(3) be (5～10) with sensitizing agent and explosive matrix quality proportioning: 1000 mixed stirs after promotor (B) component being sprayed onto mixture with 0.2～0.6 times of (A) constituent mass after evenly;
(4) through promotor adding quality what, controlled sensitizing agent and generated N
2Amount and speed, effectively controlled emulsion [explosive bubble size and uniformity coefficient, thereby the foamed time of having controlled emulsion [explosive has indirectly improved the performance and the shelf life stability of explosive greatly;
(5) emulsifying base that finishes of foaming after powder charge, packing finished product.
The present invention adds 2～3% Span-80 and has realized that the sensitizing agent liquid transformation is a liliquoid in component (A); Original free NO2-and NH4+ are got up through water in oil wrapped; Thereby the back adds the promotor of different amounts has reached the purpose of what getting with what, has realized that the control sensitizing agent generates bubble quantity and bubble and intensity.
Advantage of the present invention:
1, sensitizing agent becomes liliquoid by liquid transformation, with original free NO
2 -With NH
4 +Get up through water in oil wrapped, reached the purpose of what getting with what; The performance and the shelf life stability of explosive have obviously been improved; Cancel traditional heating process simultaneously, reached energy-saving and cost-reducing, alleviated worker's labour intensity.
2, with stirring in the Powdered oxalic acid input water; Dissolved dilution becomes the mass ratio of oxalic acid and water to be preferably 1.3: 100 artillery clearweed aqueous acid; Make accelerator level descend 15 times than traditional phosphoric acid consumption, what and intensity that the control bubble produces have accurately been controlled foamed time; Greatly reduce material cost simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the preparation flow figure of a kind of emulsion [explosive whipping agent of the present invention and preparation method thereof.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment a kind of emulsion [explosive whipping agent of the present invention and preparation method thereof is done further to describe.
Shown in accompanying drawing 1, a kind of emulsion [explosive whipping agent comprises sensitization component (A), promotes component (B)
Wherein to account for explosive matrix weight proportion be 5～10 ‰ to component (A),
It is 0.2～0.6 times that component (B) accounts for component (A) quality proportioning,
Foam theory is all gluey emulsion [explosive chemicalfoaming principles, and moity also is a gluey emulsion [explosive whipping agent composition commonly used, and the present invention adds 2～3% Span-80 and realized that the sensitizing agent liquid transformation is a liliquoid in component (A), with original free NO
2 -With NH
4 +Get up through water in oil wrapped, the promotor that the back adds different mass is utilized the promotor H that dissociates
+Ion has been controlled sensitizing agent and has been generated N
2Bubble quantity and bubble and intensity have reached the purpose of what getting with what, realize that finally this whipping agent improves the method for emulsion [explosive performance and shelf life stability.
A kind of preparation method of emulsion [explosive whipping agent specifically may further comprise the steps: at first an ammonium nitrate, Sodium Nitrite, water, Span-80, five kinds of materials of diesel oil are once dropped into by table 1 proportioning and make sensitizing agent become liliquoid by liquid transformation; Secondly water in the Powdered oxalic acid input water is stirred, dissolved dilution becomes the mass ratio of oxalic acid and water to be preferably 1.3: 100 artillery clearweed aqueous acid; The promotor control sensitizing agent that can add different mass as required generates bubble what and intensity; Be 5～10 ‰ to mix with sensitizing agent and explosive matrix quality proportioning once more; Stir after at last promoter component (B) evenly being sprayed onto mixture with the amount of 0.2～0.6 times of component (A); The emulsifying base of foaming after finishing after powder charge, packing finished product.
Satisfy the GB18095-2000 standard-required after identifying through the authority of relevant department with the emulsion [explosive performance of the present invention foaming and shelf life stability, be superior to the performance index of like product in the equal shelf lives simultaneously.
The explosive property contrast of the identical foamed time of table 2 like product different chemical foam process
Can find out control foamed time 20 minutes from the data of table 2, obviously be superior to liquid-liquid technology, the aftereffect of basically eliminate emulsion [explosive influence simultaneously with performances such as this whipping agent emulsion explosives sensitized density, explosion velocity, induced detonation.
The contrast of table 3 like product different chemical foam process explosive storge quality
Data from table 3 can find out the emulsion [explosive of the whipping agent production of different ingredients in the shelf lives be superior to like product in the equal shelf lives performance index and satisfy the GB18095-2000 standard-required.
Above-described embodiment, the present invention embodiment a kind of more preferably just, common variation that those skilled in the art carries out in technical scheme scope of the present invention and replacement all should be included in protection scope of the present invention.
Claims (3)
1. a kind of emulsion [explosive whipping agent of the present invention comprises sensitizing agent component (A), promoter component (B), it is characterized in that:
Wherein to account for explosive matrix weight proportion be 5～10 ‰ to component (A),
It is 0.2～0.6 times that component (B) accounts for component (A) quality proportioning,
The Span-80 of component (A) adding 2～3% has realized that liquid transformation is a liliquoid.
2. according to the said a kind of emulsion [explosive whipping agent of claim 1, it is characterized in that: component (A) is Span-80 formal name used at school sorbitan monooleate, chemical formula: C
24H
44O
6, molecular weight: 428, oxygen balance-2.39; Component (B) is an oxalic acid formal name used at school oxalic acid, chemical formula: C2H2O4, molecular weight: 90.
3. the preparation method of an emulsion [explosive whipping agent, it is characterized in that: this method may further comprise the steps:
(1) sensitizing agent configuration: at first water, an ammonium nitrate, three kinds of materials of Sodium Nitrite are dropped into the aqueous phase dissolved jar successively, process and put into the sensitizing agent mixing tank behind the aqueous phase solution and store; Once more Span-80, diesel oil are dropped into sensitizing agent mixing tank and stirring successively, make mixture by liquid transformation collagen fluid, original free NO
2 -With NH
4 +Get up through water in oil wrapped, reached the purpose of what getting with what;
(2) promotor configuration: with stirring in the Powdered oxalic acid input water, dissolved dilution becomes the mass ratio of oxalic acid and water to be preferably 1.3: 100 artillery clearweed aqueous acid; What and intensity with the promotor control bubble generation that adds different mass;
(3) be (5～10) with sensitizing agent and explosive matrix quality proportioning: 1000 mixed stirs after promotor (B) component being sprayed onto mixture with 0.2～0.6 times of (A) constituent mass after evenly;
(4) through promotor adding quality what, controlled sensitizing agent and generated N
2Amount and speed, effectively controlled emulsion [explosive bubble size and uniformity coefficient, thereby the foamed time of having controlled emulsion [explosive has indirectly improved the performance and the shelf life stability of explosive greatly;
(5) emulsifying base that finishes of foaming after powder charge, packing finished product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103202463A CN102503740A (en) | 2011-10-20 | 2011-10-20 | Foaming agent for emulsion explosive and preparation method thereof |
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|---|---|---|---|
| CN2011103202463A CN102503740A (en) | 2011-10-20 | 2011-10-20 | Foaming agent for emulsion explosive and preparation method thereof |
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| CN102503740A true CN102503740A (en) | 2012-06-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911934A (en) * | 2018-08-13 | 2018-11-30 | 福建省民爆化工股份有限公司 | Foaming agent for emulsion explosive and the emulsion for using the foaming agent |
Citations (1)
| 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 |
-
2011
- 2011-10-20 CN CN2011103202463A patent/CN102503740A/en active Pending
Patent Citations (1)
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108911934A (en) * | 2018-08-13 | 2018-11-30 | 福建省民爆化工股份有限公司 | Foaming agent for emulsion explosive and the emulsion for using the foaming agent |
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Application publication date: 20120620 |