CN107986923A - A kind of process of powder type explosive negative pressure powder - Google Patents
A kind of process of powder type explosive negative pressure powder Download PDFInfo
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- CN107986923A CN107986923A CN201711106949.XA CN201711106949A CN107986923A CN 107986923 A CN107986923 A CN 107986923A CN 201711106949 A CN201711106949 A CN 201711106949A CN 107986923 A CN107986923 A CN 107986923A
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- powder
- negative pressure
- water phase
- phase
- oil phase
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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
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
-
- 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
- C06B21/0008—Compounding the ingredient
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The present invention provides a kind of process of new powder type explosive negative pressure powder, it is comprised the concrete steps that：After water phase, oil phase configure, drop to below water phase crystallization point 1 DEG C 15 DEG C after mixing or in mixing by the temperature of mixture by respective delivery pump according to a certain percentage, negative pressure powder is carried out with crystalloid solution admixture.Powder type explosive free-running property that present invention process is produced is good, density is big.This technique is suitable for modified ammonium nitrate-fuel oil explosive and bulking ammonium nitrate explosive.
Description
Technical field
The present invention relates to a kind of process of powder type explosive negative pressure powder, belong in the quick-fried technical field of the people.
Technical background
In present each expanded explosive production technology, traditional negative pressure flouring technology, this technique behaviour are all employed
Make comparisons simple, it is also reliable to produce explosive property, is that bulk density is relatively low, and explosive is easy to lump, and is unfavorable for
Storage.On mixed processes, be not easy if mixing is relatively deep it is puffing, mixing it is shallower it will cause it is puffing when water oil phase layering it is tight
Weight.
The content of the invention
Deficiency, the present invention provides a kind of process of powder type explosive negative pressure powder, efficiently solves for more than
This problem, when puffing, the ammonium nitrate in crystallization state can firmly adsorb oil phase, so as not to be layered.And
And it is puffing after the completion of, medicinal powder has good free-running property, and does not lump, water resistant.This technique effectively raises powdery and fries
The bulk density and free-running property of medicine, do not lump, moisture resistance, suitable for modified ammonium nitrate-fuel oil explosive and bulking ammonium nitrate explosive.
A kind of process of powder type explosive negative pressure powder of the present invention, includes the following steps：After water phase, oil phase configure,
By respective delivery pump according to a certain percentage, after mixing or mixing in by the temperature of mixture drop to water phase crystallization point with
It is 1~15 DEG C lower, negative pressure powder is carried out with crystalloid solution admixture.
More specifically：
(1) preparation of water phase：Oxidant is crushed, is dissolved afterwards with water, makes its content more than 87%, is analysed
Fisheye keeps the bulk temperature of solution higher than crystallization point more than 100 DEG C；
(2) preparation of oil phase：Oil phase is melted, when not being integral oil phase, is proportionally configured oil phase, its
Component includes surfactant, high dropping point wax and mineral oil；Configure and its temperature is kept after being completely melt at 100~120 DEG C；
(3) by obtained water phase, oil phase, distinguish after filtering according to the ratio of 93~97%/oil phase of water phase 7~3%,
It is delivered in static mixer and is sufficiently mixed by delivery pump；
(4) mixture is cooled to below water phase crystallization point 2~15 DEG C, is transported to progress negative pressure system in powder tank processed afterwards
Powder；Vacuum is -0.06~-0.095Mpa；Time is 0.5~5min；
Or：
(1) oxidant is crushed, is dissolved afterwards with water, making its content, crystallization point is at 100 DEG C more than 87%
More than；The bulk temperature of solution is kept higher than crystallization point；
(2) solid ammonium nitrate is added in above-mentioned solution, stirs lower addition oil phase, be then delivered in powder tank processed and born
Suppress powder.
The oxidant includes ammonium nitrate, sodium nitrate.
The supplied materials of negative pressure powder is the mixture of oxidizing agent solution, oxidant crystal and oil-phase solution；Vacuum for-
Between 0.075~-0.098Mpa；Time is 0.5~5min.
Preferably, the vacuum of negative pressure powder is between -0.07~-0.095Mpa.
It is highly preferred that the vacuum of negative pressure powder is -0.08~-0.095Mpa.
Preferably, 1~15 DEG C of water phase crystallization point is less than by the water phase temperature of negative pressure powder.
It is highly preferred that 2~8 DEG C of water phase crystallization point is less than by the water phase temperature of negative pressure powder.
The process of powder type explosive negative pressure powder provided by the invention, effectively raises the bulk density of powder type explosive
And free-running property, do not lump, moisture resistance.Especially suitable for modified ammonium nitrate-fuel oil explosive and bulking ammonium nitrate explosive.
Brief description of the drawings
Fig. 1 is the process flow diagram of powder type explosive negative pressure powder
Embodiment
Embodiment 1：
After ammonium nitrate is crushed, it is dissolved according to 87% ratio in 7% water, is heated to 120 DEG C, detects water phase crystallization point
For 110 DEG C；Oil phase (using integral oil phase) has been configured, has been heated to 115 DEG C.Afterwards by water, oil phase according to 94:6 ratio conveying
Mixed into static mixer.After the completion of mixing, mixture is cooled to 95 DEG C, is transported to progress negative pressure system in Bulking tank
Powder, Bulking tank vacuum are -0.08Mpa, puffing time 1min.Cooled down after the completion of puffing, the process such as be pulverized and mixed, inspection
The bulk density for surveying finished product ammonium nitrate-fuel oil mixture is 0.51g/cm3, moisture：0.18%, medicinal powder free-running property is good, does not lump.
Embodiment 2：
After ammonium nitrate is crushed, it is dissolved according to 66% ratio in 8% water, is heated to 110 DEG C, detects water phase crystallization point
For 107 DEG C.20% solid ammonium nitrate is added in course of conveying, and is mixed with 6% oil phase.It is transported in Bulking tank, is born again
Powder is suppressed, Bulking tank vacuum is -0.07Mpa, puffing time 1min.Cooled down after the completion of puffing, by crushing, mixing
The processes such as oil phase material, complete powder type explosive preparation process.The bulk density for detecting finished product ammonium nitrate-fuel oil mixture is 0.53g/cm3, water
Point：0.22%, medicinal powder free-running property is good, does not lump.
Embodiment 3：
After sodium nitrate is crushed, it is dissolved according to 87% ratio in 7% water, is heated to 120 DEG C, detects water phase crystallization point
For 105 DEG C；Oil phase (using integral oil phase) has been configured, has been heated to 115 DEG C.Afterwards by water, oil phase according to 97:3 ratio conveying
Mixed into static mixer.After the completion of mixing, mixture is cooled to 95 DEG C, is transported to progress negative pressure system in Bulking tank
Powder, Bulking tank vacuum are -0.06Mpa, puffing time 5min.Cooled down after the completion of puffing, the process such as be pulverized and mixed, inspection
The bulk density for surveying finished product ammonium nitrate-fuel oil mixture is 0.52g/cm3, moisture：0.20%, medicinal powder free-running property is good, does not lump.
Embodiment 4：
After ammonium nitrate is crushed, it is dissolved according to 66% ratio in 8% water, is heated to 110 DEG C, detects water phase crystallization point
For 107 DEG C.20% solid ammonium nitrate is added in course of conveying, and is mixed with 6% oil phase.It is transported in Bulking tank, is born again
Powder is suppressed, Bulking tank vacuum is -0.098Mpa, puffing time 0.5min.Cooled down after the completion of puffing, by crushing,
The processes such as oil phase material are mixed, complete powder type explosive preparation process.The bulk density for detecting finished product ammonium nitrate-fuel oil mixture is 0.53g/
cm3, moisture：0.22%, medicinal powder free-running property is good, does not lump.
Comparative example：
After ammonium nitrate is crushed, it is dissolved according to 87% ratio in 7% water, is heated to 120 DEG C, detects water phase crystallization point
For 110 DEG C；Oil phase (using integral oil phase) has been configured, has been heated to 115 DEG C.Afterwards by water, oil phase according to 94:6 ratio conveying
Mixed into static mixer.Progress negative pressure powder in Bulking tank is transported to again, Bulking tank vacuum is -0.085Mpa,
Puffing time is 1min.Cooled down after the completion of puffing, the process such as be pulverized and mixed, the bulk density of detection finished product ammonium nitrate-fuel oil mixture is
0.41g/cm3, moisture：0.12%, medicinal powder hair is continuous, and free-running property is poor.
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (8)
1. a kind of process of powder type explosive negative pressure powder, includes the following steps：After water phase, oil phase configure, by respective
Delivery pump according to a certain percentage, after mixing or mixing in the temperature of mixture is dropped to 1~15 below water phase crystallization point
DEG C, negative pressure powder is carried out with crystalloid solution admixture.
2. process according to claim 1, it is characterised in that：
(1) preparation of water phase：Oxidant is crushed, is dissolved afterwards with water, makes its content more than 87%, crystallization point
More than 100 DEG C, the bulk temperature of solution is kept higher than crystallization point；
(2) preparation of oil phase：Oil phase is melted, when not being integral oil phase, is proportionally configured oil phase, its component
Including surfactant, high dropping point wax and mineral oil；Configure and its temperature is kept after being completely melt at 100~120 DEG C；
(3) by obtained water phase, oil phase, distinguish according to the ratio of 93~97%/oil phase of water phase 7~3% after filtering, by defeated
Send pump to be delivered in static mixer to be sufficiently mixed；
(4) mixture is cooled to below water phase crystallization point 2~15 DEG C, is transported to progress negative pressure powder in powder tank processed afterwards；Very
Reciprocal of duty cycle is -0.06~-0.098Mpa；Time is 0.5~5min；
Or：
(1) oxidant is crushed, is dissolved afterwards with water, make its content more than 87%, crystallization point 100 DEG C with
On；The bulk temperature of solution is kept higher than crystallization point；
(2) solid ammonium nitrate is added in above-mentioned solution, stirs lower addition oil phase, be then delivered to progress negative pressure system in powder tank processed
Powder.
3. process according to claim 2, it is characterised in that：The oxidant includes ammonium nitrate, sodium nitrate.
4. process according to claim 1 or 2, it is characterised in that：The supplied materials of negative pressure powder is oxidizing agent solution, oxygen
The mixture of agent crystal and oil-phase solution；Vacuum is between -0.075~-0.098Mpa；Time is 0.5~5min.
5. process according to claim 3, it is characterised in that：The vacuum of negative pressure powder for -0.07~-
Between 0.095Mpa.
6. process according to claim 4, it is characterised in that：The vacuum of negative pressure powder for -0.08~-
0.095Mpa。
7. process according to claim 5, it is characterised in that：Water phase crystallization is less than by the water phase temperature of negative pressure powder
1~15 DEG C of point.
8. process according to claim 6, it is characterised in that：Water phase crystallization is less than by the water phase temperature of negative pressure powder
2~8 DEG C of point.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711106949.XA CN107986923B (en) | 2017-11-10 | 2017-11-10 | A kind of process of powder type explosive negative pressure powder |
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| CN201711106949.XA CN107986923B (en) | 2017-11-10 | 2017-11-10 | A kind of process of powder type explosive negative pressure powder |
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| CN107986923A true CN107986923A (en) | 2018-05-04 |
| CN107986923B CN107986923B (en) | 2019-12-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036941A (en) * | 1988-04-14 | 1989-11-08 | 淮南矿业学院 | High safety grain shape permitted nitramines explosive in coal mine |
| US20160090388A1 (en) * | 2014-09-29 | 2016-03-31 | U.S. Army Research Laboratory Attn: Rdrl-Loc-I | Process for the production of speherical tetranitroglycouril |
-
2017
- 2017-11-10 CN CN201711106949.XA patent/CN107986923B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036941A (en) * | 1988-04-14 | 1989-11-08 | 淮南矿业学院 | High safety grain shape permitted nitramines explosive in coal mine |
| US20160090388A1 (en) * | 2014-09-29 | 2016-03-31 | U.S. Army Research Laboratory Attn: Rdrl-Loc-I | Process for the production of speherical tetranitroglycouril |
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| CN107986923B (en) | 2019-12-03 |
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Effective date of registration: 20240805 Address after: No. 8 Lanxiang Road, Tiangongshan Community, Baofeng Street, Shimen County, Changde City, Hunan Province, China 415300 Patentee after: SHIMEN CHENGGONG HIGH MOLECULAR MATERIAL MANUFACTURING CO.,LTD. Country or region after: China Address before: 051530 No. 12 Crown Road, Xinzhaidian Industrial Park, Zhaoxian County, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG SUCCESS MACHINERY ELECTRICAL Co.,Ltd. Country or region before: China |