CN1099126A - A kind of aqueous solution that is used for explosion - Google Patents
A kind of aqueous solution that is used for explosion Download PDFInfo
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- CN1099126A CN1099126A CN 93112115 CN93112115A CN1099126A CN 1099126 A CN1099126 A CN 1099126A CN 93112115 CN93112115 CN 93112115 CN 93112115 A CN93112115 A CN 93112115A CN 1099126 A CN1099126 A CN 1099126A
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Abstract
A kind of aqueous solution that is used for explosion belongs to the medium of controlled blasting.Its special character is to have added alkali in the water, make it with explosion after the nitric oxide that produced, oxynitrides pernicious gas generation chemical reactions such as nitrogen dioxide reduce pernicious gas, reduce dust content.Make and reach state specified standards at short notice.Healthy influence to the workmen is little, and the explosive specific consumption is low, economic benefit is considerable, bulk is few, slungshot is few, noise is little etc., be mainly used in the underground engineering bursting work, be a kind of ideal medium in explosion field.
Description
The present invention relates to a kind of medium that is used for explosion, particularly a kind of aqueous solution that is used for controlled blasting.
At present, the common blasting procedure of the general employing of the underground engineering explosion of domestic application, when blast charging, do not add any medium exactly, this explosion is to the rock failure mechanism of rock is big on every side, the override amount is big, and oxynitrides pernicious gas that produces during explosion and dust concentration height, the airborne dust content short time does not often reach (2 milligrams/meter of national standards
3), greatly affect the healthy of workmen, though occur the more advanced controlled blasting method of air as medium of utilizing now, air dielectric has reduced the efficient of transmitting blasting energy in explosion moment owing to its volume is compressed.Explosive specific consumption height, not only uneconomical and since the aperture do not have shutoff, make blasting energy fly to let out to the aperture along the direction of hole axle, make a part of blasting energy easily go out outside the hole prematurely, though cause the oxynitrides pernicious gas of explosion and dust concentration certain reduction to be arranged than common blasting procedure, but airborne dust still can not reach state specified standards at short notice, and the bulk after can not controlled blasting and the problem of slungshot.
Purpose of the present invention will provide pernicious gas after a kind of elimination explosion exactly, reduces dust concentration greatly, does not influence the healthy of workmen, and the explosive specific consumption is low, and the aqueous solution of economic controlled blasting.
The object of the present invention is achieved like this: a kind of aqueous solution that is used for controlled blasting is made up of water, its special pearl part is to contain alkali in the described aqueous solution, the concentration of the aqueous solution is 1 ‰-6 ‰, here the concentration that said concentration is highly basic (as KOH, NaoH) is if add weak base (as Al(OH)
3) or strong base-weak acid salt (as Na
2CO
3, NaHCO
3) then concentration should increase in proportion so that reach when adding highly basic the pH value that solution presented.
Because during explosion, nitrogen directly is combined to nitric oxide with airborne oxygen, nitric oxide is easy to again generate nitrogen dioxide with oxygen chemical combination in the air at normal temperatures, the nitric acid of nitrogen dioxide generation soluble in water about 2/3 and about 1/3 nitric oxide, nitric oxide is converted into nitrogen dioxide again, nitrogen dioxide can be absorbed by water again and generate nitric acid and nitric oxide, and this process produced in moment.Nitric oxide and nitrogen dioxide are the important pollutants of atmosphere pollution; Thereby add alkali at the aqueous solution that is used for controlled blasting, and the one, can control airborne dust, covered by the aqueous solution rapidly, reach state-set standard≤2 milligram/meter
3The 2nd, can be with the nitric oxide that produces, nitrogen dioxide, oxides of nitrogen gas is changed to salt in Transfer in Aqueous Solution, so eliminated the pernicious gas after the explosion, greatly reduces dust concentration.Because the Incoercibility of its liquor capacity, thereby the efficient height of transmission blasting energy, effective, explosive specific charge is low, reasonable energy utilization.And explosive sound is little, and bulk is few, and slungshot is few, and flue dust is few, thereby has improved operating environment.It is as follows to be compared with the prior art table:
Different blasting method dust degree contrast tables
| Parameter type | Hole depth (rice) | Explosive payload (kilogram) | Demolition effect | Blow out the back and promptly blow out back a few minutes the time and measure (branch) | Minute (branch) | Survey back weightening finish (milligram) | Dust concentration (milligram/rice) |
| Common explosion | 2.5 | 28.5 | Every hole on earth, but slungshot is far away, boulder yield is 15～20% | 8 12 20 40 | 2 4 10 10 | 11.4 9 19 9.5 | 190 75 63.33 31.67 |
| Air dielectric controlled blasting | 2.5 | 12 | Every hole on earth, slungshot is few, big lumpiness is below 10% | 8 12 20 40 | 2 4 10 10 | 7.35 7.1 10.3 5.38 | 122.5 59.17 34.33 17.93 |
| Aqueous medium controlled blasting | 2.5 | 10.8 | Every hole on earth, the few and nearly boulder yield of slungshot is below 8% | 8 12 20 40 | 2 4 10 10 | 1.4 2.36 2.45 0.54 | 23.33 19.67 8.17 1.8 |
Different blasting method harmful gas concentration contrast tables
Embodiment 1:
Get NaoH1～2 grams, put into polybag.Utilize the water about high pressure adding 1000 grams during use at the scene, making alkali is 1～2 ‰ in the concentration of the aqueous solution, and it is applicable to that the total dose of disposable explosion is no more than 2 kilograms explosion, then this bag is sealed, and also can utilize from the solution bag that seals.During use,, with explosive and be equipped with in the sack charge constitution load hole in accordance with regulations of the aqueous solution, carry out explosion with the fuse detonation detonator according to different landform and on-the-spot actual conditions.
Embodiment 2:
Using method is identical with embodiment 1.Get the NaoH3 gram and put into the solution bag that can hold 1000 gram water, making the concentration of alkali in the aqueous solution is 3 ‰, and it is applicable to that the total dose of disposable explosion is 2～4 kilograms explosion.
Embodiment 3:
Using method is identical with embodiment 1.Get NaoH4 gram and pack into and can hold in the solution bag of 1000 gram water, making the concentration of alkali in the aqueous solution is 4 ‰, and it is applicable to that the total dose of disposable explosion is 5～10 kilograms explosion.
Embodiment 4:
Using method is identical with embodiment 1.Get the NaoH5 gram, pack into and can hold in the solution bag of 1000 gram water, making the concentration of alkali in the aqueous solution is 5 ‰, and it is applicable to that the total dose of disposable explosion is 10 kilograms～20 kilograms explosion.
Embodiment 5:
Using method is with embodiment 1.Get the NaoH6 gram, pack into and can hold in the solution bag of 1000 gram water, making the concentration of alkali in the aqueous solution is 6 ‰, and it is applicable to the explosion of the total dose of disposable explosion more than 20 kilograms.
Embodiment 6:
Different with embodiment 1,2,3,4,5 is: if the ground blasting temperature is low, or the place of downhole temperature lower (T≤0 ℃) carries out explosion, can add an amount of salt, prevents that solution from freezing.Also can add the nontoxic commercially available anti-icing fluid in burning back.Add what of salt or commercially available anti-icing fluid, decide, with icing being as the criterion not with the ignition time behind the environment temperature and the dress aqueous solution.Ordinary circumstance, temperature are low more, and it is many more to add salt (anti-icing fluid), behind the solution of packing into, are separated by longly more with the ignition time, and the amount that then adds salt (anti-icing fluid) is many more.
Claims (8)
1, a kind of aqueous solution that is used for explosion is made up of water, it is characterized in that containing alkali in the described water, and the concentration of the aqueous solution is 1 ‰-6 ‰.
2, a kind of aqueous solution that is used for explosion according to claim 1, it is characterized in that: the concentration of the aqueous solution is 2 ‰.
3, a kind of aqueous solution that is used for explosion according to claim 1, it is characterized in that: the concentration of the aqueous solution is 3 ‰.
4, a kind of aqueous solution that is used for explosion according to claim 1, it is characterized in that: the concentration of the aqueous solution is 4 ‰.
5, a kind of aqueous solution that is used for explosion according to claim 1, it is characterized in that: the concentration of the aqueous solution is 5 ‰.
6, a kind of aqueous solution that is used for explosion according to claim 1 is characterized in that, the concentration of the aqueous solution is 6 ‰.
7, according to claim 1,2,3,4,5 or 6 described a kind of aqueous solution that are used for explosion, it is characterized in that: add an amount of antifreezing agent in the described aqueous solution.
8, a kind of aqueous solution that is used for explosion according to claim 7, it is characterized in that: described antifreezing agent is a salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112115 CN1099126A (en) | 1993-08-15 | 1993-08-15 | A kind of aqueous solution that is used for explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93112115 CN1099126A (en) | 1993-08-15 | 1993-08-15 | A kind of aqueous solution that is used for explosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1099126A true CN1099126A (en) | 1995-02-22 |
Family
ID=4989852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93112115 Pending CN1099126A (en) | 1993-08-15 | 1993-08-15 | A kind of aqueous solution that is used for explosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1099126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000495A (en) * | 2010-11-18 | 2011-04-06 | 王宝国 | Antismoke agent for carbonic oxide (CO) replacement reaction and use method thereof |
-
1993
- 1993-08-15 CN CN 93112115 patent/CN1099126A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000495A (en) * | 2010-11-18 | 2011-04-06 | 王宝国 | Antismoke agent for carbonic oxide (CO) replacement reaction and use method thereof |
| CN102000495B (en) * | 2010-11-18 | 2012-12-26 | 王宝国 | Antismoke agent for carbonic oxide (CO) replacement reaction and use method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |