CN107986923B - 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
- Publication number
- CN107986923B CN107986923B CN201711106949.XA CN201711106949A CN107986923B CN 107986923 B CN107986923 B CN 107986923B CN 201711106949 A CN201711106949 A CN 201711106949A CN 107986923 B CN107986923 B CN 107986923B
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- CN
- China
- Prior art keywords
- powder
- phase
- negative pressure
- oily
- water phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000843 powder Substances 0.000 title claims abstract description 46
- 239000002360 explosive Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000002425 crystallisation Methods 0.000 claims abstract description 17
- 230000008025 crystallization Effects 0.000 claims abstract description 17
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 14
- 239000007800 oxidant agent Substances 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000002480 mineral oil Substances 0.000 claims description 2
- 235000010446 mineral oil Nutrition 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 abstract description 8
- 150000003863 ammonium salts Chemical class 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 5
- 230000001007 puffing effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The present invention provides a kind of processes of novel powder type explosive negative pressure powder, it is comprised the concrete steps that: after water phase, oily phase configuration are good, according to a certain percentage by respective delivery pump, 1 DEG C -15 DEG C of water phase crystallization point or less are dropped to after mixing or in mixing by the temperature of mixture, negative pressure powder is carried out with crystalloid solution admixture.The 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 used
It makes comparisons simple, produced explosive property is also reliable, and only bulk density is lower, and explosive is easy to agglomerate, and is unfavorable for
Storage.On mixed processes, be not easy extruding if mixing is relatively deep, mix it is shallower it will cause water oil when extruding be mutually layered it is tight
Weight.
Summary of the invention
Against the above deficiency, it the present invention provides a kind of process of powder type explosive negative pressure powder, efficiently solves
This problem, in extruding, the ammonium nitrate for being in crystallization state can firmly adsorb oily phase, so as not to be layered.And
And after the completion of extruding, medicinal powder has good free-running property, and does not agglomerate, water resistant.It is fried that this technique effectively raises powdery
The bulk density and free-running property of medicine, do not agglomerate, moisture resistance, are 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, after including the following steps: that water phase, oily phase configuration are good,
According to a certain percentage by respective delivery pump, 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 being crushed, is dissolved later with water, is made its content 87% or more, is analysed
Crystal point keeps the bulk temperature of solution being higher than crystallization point at 100 DEG C or more；
(2) preparation of oily phase: oil is mutually melted, proportionally that oily phase configuration is good when not being one oil phase,
Component includes surfactant, high dropping point wax and mineral oil；It configures and keeps its temperature at 100~120 DEG C after being completely melt；
(3) by obtained water phase, oily phase, after filtering according to water phase 93~97%/oil phase 7~3% ratio difference,
It is delivered in static mixer and is sufficiently mixed by delivery pump；
(4) mixture is cooled to 2~15 DEG C of water phase crystallization point or less, is transported to progress negative pressure system in powder tank processed later
Powder；Vacuum degree is -0.06~-0.095Mpa；Time is 0.5~5min；
Or:
(1) oxidant is crushed, is dissolved later with water, make its content 87% or more, crystallization point is at 100 DEG C
More than；The bulk temperature of solution is kept to be higher than crystallization point；
(2) solid ammonium nitrate is added in above-mentioned solution, is added with stirring oily 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 degree be-
Between 0.075~-0.098Mpa；Time is 0.5~5min.
Preferably, the vacuum degree of negative pressure powder is between -0.07~-0.095Mpa.
It is highly preferred that the vacuum degree of negative pressure powder is -0.08~-0.095Mpa.
Preferably, it is lower than 1~15 DEG C of water phase crystallization point by the water phase temperature of negative pressure powder.
It is highly preferred that being lower than 2~8 DEG C of water phase crystallization point 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, it does not agglomerate, moisture resistance.Especially suitable for modified ammonium nitrate-fuel oil explosive and bulking ammonium nitrate explosive.
Detailed description of the invention
Fig. 1 is the process flow diagram of powder type explosive negative pressure powder
Specific embodiment
Embodiment 1:
It after ammonium nitrate is crushed, is dissolved in 7% water according to 87% ratio, is heated to 120 DEG C, detect water phase crystallization point
It is 110 DEG C；The good oily phase (using the oily phase of one) of configuration, is heated to 115 DEG C.Jiang Shui, oil are mutually conveyed according to the ratio of 94:6 later
It is 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 degree are -0.08Mpa, puffing time 1min.It is cooled down after the completion of extruding, processes, the inspection such as is pulverized and mixed
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 agglomerate.
Embodiment 2:
It after ammonium nitrate is crushed, is dissolved in 8% water according to 66% ratio, is heated to 110 DEG C, detect water phase crystallization point
It is 107 DEG C.20% solid ammonium nitrate is added in transmission process, and is mixed with 6% oil.It is transported in Bulking tank, is born again
Powder is suppressed, Bulking tank vacuum degree is -0.07Mpa, puffing time 1min.It is cooled down after the completion of extruding, 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 agglomerate.
Embodiment 3:
It after sodium nitrate is crushed, is dissolved in 7% water according to 87% ratio, is heated to 120 DEG C, detect water phase crystallization point
It is 105 DEG C；The good oily phase (using the oily phase of one) of configuration, is heated to 115 DEG C.Jiang Shui, oil are mutually conveyed according to the ratio of 97:3 later
It is 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 degree are -0.06Mpa, puffing time 5min.It is cooled down after the completion of extruding, processes, the inspection such as is pulverized and mixed
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 agglomerate.
Embodiment 4:
It after ammonium nitrate is crushed, is dissolved in 8% water according to 66% ratio, is heated to 110 DEG C, detect water phase crystallization point
It is 107 DEG C.20% solid ammonium nitrate is added in transmission process, and is mixed with 6% oil.It is transported in Bulking tank, is born again
Powder is suppressed, Bulking tank vacuum degree is -0.098Mpa, puffing time 0.5min.It is cooled down after the completion of extruding, by crushing,
The processes such as oil phase material are mixed, powder type explosive preparation process is completed.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 agglomerate.
Comparative example:
It after ammonium nitrate is crushed, is dissolved in 7% water according to 87% ratio, is heated to 120 DEG C, detect water phase crystallization point
It is 110 DEG C；The good oily phase (using the oily phase of one) of configuration, is heated to 115 DEG C.Jiang Shui, oil are mutually conveyed according to the ratio of 94:6 later
It is mixed into static mixer.It is transported to progress negative pressure powder in Bulking tank again, Bulking tank vacuum degree is -0.085Mpa,
Puffing time is 1min.It is cooled down after the completion of extruding, processes, the bulk density of detection finished product ammonium nitrate-fuel oil mixture such as being pulverized and mixed 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 does not limit the embodiments.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 variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (2)
1. a kind of process of powder type explosive negative pressure powder, it is characterised in that:
(1) preparation of water phase: oxidant being crushed, is dissolved later with water, makes its content 87% or more, crystallization point
At 100 DEG C or more, the bulk temperature of solution is kept to be higher than crystallization point；
(2) preparation of oil phase: when phase oily using one, when oil mutually being melted, or using non-integral oily phase, proportionally
By include surfactant, high dropping point wax and mineral oil oily phase configuration it is good after melt；Its temperature is kept to exist after oily mutually fusing
100~120 DEG C；
(3) by obtained water phase, oily phase, after filtering according to water phase 93~97%/oil phase 7~3% ratio difference, by defeated
It send pump to be delivered in static mixer to be sufficiently mixed；
(4) mixture is cooled to 2~15 DEG C of water phase crystallization point or less, is transported in powder tank processed later with crystalloid solution mixing shape
State carries out negative pressure powder；Vacuum degree is -0.06~-0.098Mpa；Time is 0.5~5min.
2. process according to claim 1, it is characterised in that: the oxidant is ammonium nitrate or sodium nitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106949.XA CN107986923B (en) | 2017-11-10 | 2017-11-10 | A kind of process of powder type explosive negative pressure powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106949.XA CN107986923B (en) | 2017-11-10 | 2017-11-10 | A kind of process of powder type explosive negative pressure powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107986923A CN107986923A (en) | 2018-05-04 |
| CN107986923B true CN107986923B (en) | 2019-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711106949.XA Active CN107986923B (en) | 2017-11-10 | 2017-11-10 | A kind of process of powder type explosive negative pressure powder |
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| Country | Link |
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| CN (1) | CN107986923B (en) |
Citations (1)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9512127B2 (en) * | 2014-09-29 | 2016-12-06 | The United States Of America As Represented By The Secretary Of The Army | Process for the production of speherical tetranitroglycouril |
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2017
- 2017-11-10 CN CN201711106949.XA patent/CN107986923B/en active Active
Patent Citations (1)
| 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 |
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| Publication number | Publication date |
|---|---|
| CN107986923A (en) | 2018-05-04 |
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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 |
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