CN1026891C - Formula of low-cost emulsion explosive and manufacturing process thereof - Google Patents
Formula of low-cost emulsion explosive and manufacturing process thereof Download PDFInfo
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- CN1026891C CN1026891C CN 88105723 CN88105723A CN1026891C CN 1026891 C CN1026891 C CN 1026891C CN 88105723 CN88105723 CN 88105723 CN 88105723 A CN88105723 A CN 88105723A CN 1026891 C CN1026891 C CN 1026891C
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Abstract
A formula of a cheap emulsion explosive and a manufacturing process thereof, relating to a formula of an emulsion explosive and a manufacturing process thereof. The emulsion explosive of the invention is composed of inorganic oxide salt, combustible (including emulsifier), water and the like. The explosive has detonator sensitivity, the detonation velocity is 4500 m/s, the explosive volume is 385L/kg (dry specific volume), the explosive is suitable for various blasting projects of underground or surface mines, and the cost is 100-150 yuan/ton lower than that of the explosive of the same type.
Description
The prescription and the manufacturing process thereof of cheap emulsion explosive belong to the prescription and the manufacturing process thereof of a kind of emulsion explosive in the industrial explosive field.
In existing industrial explosive field, as emulsion explosive, generally the aqueous oxidizing agent solution of being made up of two or more inorganic oxidising salt is a disperse phase, and water-insoluble component (petroleum-type) (is seen usp4110,134 for the emulsification system that external phase constitutes; " metal mine " 8,1982, the 16-20 page or leaf).Their formula constituent is comparatively complicated, and raw materials cost is higher.
The objective of the invention is to: new explosive formulation is provided, simplify existing prescription and manufacturing process thereof, reduce the explosive raw material cost, improve explosive detonation characteristic, make its detonation property surpass the one-level rock emulsion explosive, near or reach the key technical indexes of secondary rock emulsion explosive.
The principle that the present invention followed is: adopt single inorganic oxidising salt at the aqueous phase that constitutes emulsion explosive, just can manufacture stability emulsion substrate preferably as long as the supersaturation inorganic oxide salt brine solution of this high density can satisfy its emulsification requirement condition.And increase owing to be dispersed in the concentration of the even saline oxide aqueous solution droplet in the external phase medium in the combustiblematerials, must cause its fried Hong reaction to be easy to excite and transmit.Thereby the sensitivity of explosive and fried Hong performance are improved.
Prescription of the present invention is by components such as single inorganic oxidising salt, combustiblematerials (comprising emulsifying agent), water, is mixed and made into through Over emulsfication.The content of inorganic oxidising salt is 70～90% in the prescription, can select raw materials such as ammonium nitrate, SODIUMNITRATE, urea nitrate for use; The consumption of combustiblematerials in explosive is generally 3～12%, can select machine oil, heavy oil, Vaseline, compound wax, paraffin, ceresine, beeswax, montanin wax or their mixture of petroleum-type arbitrarily for use; The consumption of emulsifying agent in explosive is generally 0.5～3.0%, and (ratio of its mixture is 1: 1-0.1) can to select sorbitan monopalmitate, sorbitan monooleate, Span-20, glyceryl stearate, dehydration Xylitol monoleate, N.F,USP MANNITOL synthetic fatty acid and Yelkin TTS, sodium lauryl sulphate, dodecyl alcohol acyl phosphatide or their mixture arbitrarily for use; The content of water is 5-20%; The chemical gassing agent consumption is 0.01-0.6%, can select the mixture (ratio of this mixture is 1: 1) of sodium bicarbonate, Sodium Nitrite, potassium nitrite or they and ammonium salt for use.
Manufacture method of the present invention is suitable for intermittent type or continuous production method.The steps include: at first that water with the inorganic oxidising salt of 70-90% and 5-20% is heated to about 110 ℃ makes the aqueous solution, on-line velocity is that the agitator of 5-10 meter per second stirs in the oil phase that the emulsifying agent that evenly joins oil combustiblematerials that content is 3-12% and 0.5-3.0% down forms (temperature of oil phase is about 100 ℃), can obtain the heavy-gravity emulsion substrate of homogeneous, making the temperature of emulsion substrate by water coolant then is about 60 ℃, the chemical foaming agent that adds 0.01-0.60% under constantly stirring is adjusted the cheap emulsified explosive that density is promptly made cap-sensitivity with inflation process, and the whole preparation process required time is about 10-20 minute.With the emulsion explosive that above-mentioned prescription and technology thereof are made, fried speed is 4500 meter per seconds, 16 millimeters of brisances, and quick-fried appearance is 385 liters/kilogram (dried specific volumes), and water repelling property is good.
The present invention compares advantages such as to have a prescription simple, and raw material sources are extensive, and with low cost and detonation property is good with prior art, compare with the one-level rock emulsion explosive raw materials cost of existing various cap-sensitivities more than the cheap 100-150 per ton unit.
Embodiment 1, utilizes vortex agitator to make cheap two kinds of finished products of emulsion explosive with above-mentioned preparation technology, and good fluidity can pumping.Its raw material and component such as following table:
Material name component content (%)
1 2
Ammonium nitrate 78 80
Water 16 14
Paraffin 2.4 2.0
Combustiblematerials
Machine oil 2.0 2.0
Emulsifying agent * 1 1.4
Other are 0.6 0.6 years old
Fried speed (meter per second) 4,000 4500
Going up routine emulsifying agent is Span80 and K
12Mixture, its mixture ratio 1: 0.2
Embodiment 2, use above-mentioned manufacturing process, utilize colloidal mill to make cheap two kinds of products of emulsion explosive continuously, and its raw material and component such as following table are listed:
The raw material composition is formed content (%)
1 2
Ammonium nitrate 80 78
Water 14 16
Paraffin 2 2.4
Vaseline 2 2.0
Emulsifying agent * 1.4 1.0
Other are 0.6 0.6 years old
Explosion velocity (meter per second) 4,500 4000
Going up routine emulsifying agent is Span80 and K
12Mixture, its ratio are 1: 0.1.
Claims (2)
1, a kind of have a cap-sensitivity, adjust density with chemical gassing agent, adopt the cheap emulsified explosive composition of single inorganic oxidising salt, it is characterized in that: its prescription is: single inorganic oxidising salt: ammonium nitrate 70-90%, water 5-20%, petroleum-type combustiblematerials 3-12%, compound emulsifying agent: the mixture of sorbitan monooleate and sodium lauryl sulphate (ratio of its mixture is 1: 1～0.1), account for 0.5～3.0%, the composite chemical aeration agent: the mixture of sodium bicarbonate or Sodium Nitrite and ammonium salt (ratio of this mixture is 1: 1) accounts for 0.01～0.60%.
2, a kind of manufacturing process of cheap emulsified explosive composition according to claim 1 is characterized in that: its manufacturing process comprises the steps:
(1), the water of the single inorganic oxidising salt of 70-90% and 5-20% is heated to 110 ℃ and makes aqueous phase solution;
(2), the compound emulsifying agent of the petroleum-type combustiblematerials of 3-12% and 0.5-3.0% is heated to 100 ℃ and makes oil phase;
(3), be under the 5-10 meter per second in emulsification shear line speed, water is added in the oil phase equably, constantly stir up to the heavy-gravity emulsion substrate that obtains homogeneous;
(4), the temperature of emulsion substrate is reduced to 60 ℃, add 0.01～0.60% composite chemical aeration agent and adjust the cheap emulsified explosive that density is promptly made cap-sensitivity under constantly stirring, the whole preparation process required time is 10-20 minute by water coolant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105723 CN1026891C (en) | 1988-06-02 | 1988-06-02 | Formula of low-cost emulsion explosive and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105723 CN1026891C (en) | 1988-06-02 | 1988-06-02 | Formula of low-cost emulsion explosive and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1038269A CN1038269A (en) | 1989-12-27 |
| CN1026891C true CN1026891C (en) | 1994-12-07 |
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ID=4833871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105723 Expired - Fee Related CN1026891C (en) | 1988-06-02 | 1988-06-02 | Formula of low-cost emulsion explosive and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026891C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PE20110491A1 (en) * | 2009-11-23 | 2011-07-22 | Ind Minco S A C | WATER-IN-OIL TYPE EMULSION AS BLASTING AGENT |
| CN109607833A (en) * | 2018-12-24 | 2019-04-12 | 廊坊萍锅炉保养工程有限公司 | A kind of formula and its application method of corrosion inhibiting and descaling agent |
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1988
- 1988-06-02 CN CN 88105723 patent/CN1026891C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1038269A (en) | 1989-12-27 |
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