CN1128743A - Slurry explosive and mfg. method thereof - Google Patents
Slurry explosive and mfg. method thereof Download PDFInfo
- Publication number
- CN1128743A CN1128743A CN 95110932 CN95110932A CN1128743A CN 1128743 A CN1128743 A CN 1128743A CN 95110932 CN95110932 CN 95110932 CN 95110932 A CN95110932 A CN 95110932A CN 1128743 A CN1128743 A CN 1128743A
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- CN
- China
- Prior art keywords
- agent
- single base
- slurry explosive
- base propellant
- slurry
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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
- C06B31/32—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with a nitrated organic compound
- C06B31/52—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
- C06B47/14—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
Abstract
The single-base powder, AN and SN and others are used as the raw materials, technological process consists of dissolution-mixing, dissolution-expansion, foaming and cross-linking. It has advantages such as: low cost, initiating with industrial auget No.8, and suited to commercial prodn.
Description
The present invention relates to a kind of slurry explosive and method for making thereof, particularly a kind of slurry explosive and method for making thereof of utilizing waste single base propellant (hereinafter to be referred as useless medicine) to make.
United States Patent (USP) usp3,235,424 disclose a kind of slurry explosive and method for making thereof.This slurry explosive prescription is:
Inorganic oxide: 35～75%;
Smokeless gun propellant: 10～12%;
Water: 9～12%;
Glue: 0.1～2.5%;
Ferrosilicon powder: 12～30%.
Its manufacturing process is: (1) mixes 1～2min with oxygenant, ferrosilicon powder and gelatinizing agent; (2) add water remix 2～4min; (3) add smokeless gun propellant and mix 2～4min.The slurry explosive of making, density are 1.6～2.0gcm
-3, but, can not use the industrial detonator direct initiation because of its Sensitivity to Primary Explosion is low, so be difficult to use; Because of having used ferrosilicon powder, cost improves, and is unfavorable for again applying.
The object of the present invention is to provide a kind of slurry explosive that can reduce cost and can be made by the useless medicines of the utilization that No. 8 industrial detonators are directly ignited and preparation method thereof.
The present invention is realized by following measures: the present invention utilizes useless medicinal powder to prepare slurry explosive.Its component and content (quality %) are: useless medicinal powder is 25～41%, ammonium nitrate (AN) is 30～50%, SODIUMNITRATE (SN) is 6～12%, urea (ur) is 2～4%, antifreezing agent is 0.5～3%, perlite is 0.5～1%, glue be 0.5～1.0% and water be 9～12%.Antifreezing agent is an ethylene glycol, and gelatinizing agent is the sesbania powder.The preparation technology of this slurry explosive is: the first step is molten mixes: weighing give up single medicinal powder, AN, SN, ur and water are under 68 ℃～75 ℃ conditions in temperature, mix 2～4min in kneader, must molten mixed material; Second step was swelling: antifreezing agent, perlite and gelatinizing agent are added in the molten mixed thing, are under 68 ℃～72 ℃ conditions at swelling temperature, mediate 10～20min, and kneading speed is 33rmin for initiatively starching
-1, for driven slurry 23.4rmin
-1The 3rd step was foaming: add foaming agent water solution in the material after swelling, and the 3～15min that mediates, foams, blowing temperature is controlled at 65 ℃～70 ℃; The 4th step is for crosslinked: add cross-linking agent aqueous solution in the material after foaming, carry out crosslinkedly under the condition of continue mediating, crosslinking time is 3～15min, and temperature is controlled at 60 ℃～70 ℃, linking agent consists of: potassium bichromate: borax: water=1.4: 2: 28, thus make slurry explosive.
The present invention compared with prior art has following beneficial effect:
(1) cost is low.This is cheap because of the used equal price of raw material except that useless medicine of the present invention, avoids using the ferrosilicon powder that costs an arm and a leg, so cost is low; (2) Sensitivity to Primary Explosion height.The associating sensitization that the present invention adopts threes such as being carried bubble sensitization by useless medicinal powder sensitization, chemical foaming sensitization and perlite to form, thereby the slurry explosive of making, the Sensitivity to Primary Explosion height, thus can directly ignite with No. 8 industrial detonators, be convenient to the industrialization promotion application.
Description of drawings.
Accompanying drawing is to utilize useless medicine to prepare the slurry explosive process flow sheet.
Now with example the present invention is further described in conjunction with the accompanying drawings:
Embodiment one
1. fill a prescription
| Composition | AN | ?SN | ????ur | Useless medicinal powder | Ethylene glycol | The sesbania powder | Perlite | Water |
| Content/% | 43.9 | ?9 | ????2 | ?32.5 | ?0.5 | ?0.8 | ?0.8 | ?10.5 |
The effect of antifreezing agent is the low temperature Sensitivity to Primary Explosion that improves slurry explosive.
Whipping agent: 7.5ml/kg is NaNO
2The aqueous solution, concentration are 33.3%, its effect: NaNO
2Generate nitrogen with the AN chemical action, in the slurry explosive system, generate a large amount of sensitization bubbles, improve the Sensitivity to Primary Explosion of explosive.NaNO
2When preparing, explosive is consumed because of chemical action.
Linking agent: 10ml/kg is the mixed aqueous solution of potassium bichromate and borax, its ratio potassium bichromate: borax: water=1.4: 2: 28, and its effect: crosslinked with the swollen sesbania gum, form netted colloid, play the effect of stablizing explosive system.Waste single base propellant powder (useless medicinal powder) size-grade distribution is:
100 orders following 45.1%
100 orders～80 orders 10.3%
80 orders～60 orders 16.7%
60 orders～40 orders 27.7%
40 orders above 0.2%
2. specification of equipment
Horizontal stainless steel mixing machine, volume 50L, model is WH-50, rotating speed: initiatively starch 30rmin
-1, driven slurry 23.4rmin
-1
3. operation steps
The first step raw materials weighing or material:
Accurately solid ingredients such as weighing AN, SN, ur, waste single base propellant powder (useless medicinal powder), sesbania powder, perlite are accurately measured liquid ingredients such as moisture content, ethylene glycol, whipping agent, linking agent.
Molten mixing of second step:
AN, SN, ur, waste single base propellant powder and water are joined in the mixing machine, under 70 ℃～74 ℃ conditions, stir 3min, finish the molten journey of sneaking out.
The 3rd step swelling:
Continue to stir adding ethylene glycol in molten mixed back, the back that stirs adds sesbania powder and perlitic mixed powder, and swelling 10min under 68 ℃～72 ℃ condition makes it abundant swelling.
The foaming of the 4th step:
Under stirring state, add whipping agent, under 69 ℃～71 ℃ conditions, foaming 7min.
The 5th step is crosslinked:
Under condition of stirring, add linking agent, under 69 ℃～71 ℃ conditions, crosslinked 5min.
The 6th walks out of material:
Industrial explosive standard wax paper tube with φ 32mm is packed, thereby obtains slurry explosive.
4. performance
(1) density: 1.11g/cm
3(2) Sensitivity to Primary Explosion: available No. 8 industrial detonator direct initiations;
(3) minimum flash point:＜-5 ℃.
Embodiment two
1. fill a prescription
| Composition | AN | ?SN | ?ur | Useless medicinal powder | Ethylene glycol | The sesbania powder | Perlite | Water |
| Content/% | 45.4 | ?9 | ?2 | ?32.5 | ?0.5 | ?0.8 | ?0.8 | ????9 |
Whipping agent 7.5ml/kg; Linking agent 10ml/kg; Other condition is with embodiment one.
2. specification of equipment: with embodiment one.
3. operation steps: with embodiment one.
4. performance
(1) density: 1.13g/cm
3(2) Sensitivity to Primary Explosion: can be with No. 8 industrial detonator direct initiations; (3) minimum flash point:＜-4 ℃.
Embodiment three
1. fill a prescription
| Composition | AN | ?SN | ?ur | Useless medicinal powder | Ethylene glycol | The sesbania powder | Perlite | Water |
| Content/% | 36 | ?6 | ?3 | ?40.9 | ?0.5 | ?0.8 | ?0.8 | ?12 |
Whipping agent 7.5ml/kg; Linking agent 10ml/kg; Other condition is with embodiment one.
2. specification of equipment: with embodiment one.
3. operation steps:
The vinyon tube packaging with φ 80mm after discharging, other condition is with embodiment one.
4. performance
(1) density: 1.13g/cm
3(2) explosion velocity: 4468m/s; (3) Sensitivity to Primary Explosion: can be with No. 8 industrial detonator direct initiations; (4) minimum flash point＜-13 ℃.
Embodiment four:
1. fill a prescription: with embodiment one.
2. specification of equipment: with embodiment one.
3. operation steps:
Remove the 4th step, under 69 ℃～71 ℃ conditions, beyond the foaming 10min, other condition is with embodiment one.
4. performance
(1) density: 1.16g/cm
3, (2) Sensitivity to Primary Explosion: can be with No. 8 industrial detonator direct initiations; (3) minimum flash point:＜-10 ℃.
Embodiment five:
1. fill a prescription: with embodiment one.
2. specification of equipment: with embodiment one.
3. operation steps:
Four steps of the first step to the are with embodiment one.The 5th step: crosslinked 9min, other condition is with embodiment one.The 6th step: after the discharging, with the vinyon tube packaging of φ 80mm.
4. performance
(1) density: 1.15g/cm
3(2) Sensitivity to Primary Explosion: can be with No. 8 industrial detonator direct initiations; (3) minimum flash point:＜-12 ℃.
Embodiment six:
1. fill a prescription
| Composition | AN | ?SN | ?ur | Useless medicinal powder | Ethylene glycol | The sesbania powder | Perlite | Water |
| Content/% | 50.0 | ?11.5 | ?2.0 | ?25 | ?0.9 | ?0.8 | ?0.8 | ????9 |
Whipping agent 7.5ml/kg, linking agent 10ml/kg.
Other condition is with embodiment one.
2. specification of equipment
With embodiment one.
3. operation steps
First～the 5th step is with embodiment one.
The 6th step: with embodiment four.
4. performance
(1) density 1.07g/cm
3(2) Sensitivity to Primary Explosion: can use No. 8 detonator direct initiations of industry; (3) minimum flash point＜-6 ℃.
Claims (3)
1. slurry explosive that utilizes waste single base propellant to make is characterized in that its component and content (quality %) are:
Waste single base propellant powder: 25～41%;
Ammonium nitrate (AN): 30～50%;
SODIUMNITRATE (SN): 6～12%
Urea (ur): 2～4%;
Antifreezing agent: 0.5～3%;
Perlite: 0.5～1%;
Gelatinizing agent: 0.5～1%;
Water: 9～12%.
2. according to the described manufacture method of utilizing the slurry explosive that waste single base propellant makes of claim 1, it is characterized in that processing step and processing condition are as follows: the first step is molten mixing: weighing waste single base propellant, AN, SN, ur and water, in temperature is under 68 ℃～75 ℃ conditions, mixes 2～4min and get molten mixed material in kneader; Second step was swelling; Antifreezing agent, perlite and gelatinizing agent are added in the molten mixed thing, are under 68 ℃～72 ℃ conditions at swelling temperature, mediate 10～20min, and kneading speed is 33rmin for initiatively starching
-1, be 23.4rmin for driven slurry
-1The 3rd step was foaming: add foaming agent water solution in the material after swelling, and the 3～15min that mediates, foams, blowing temperature is controlled at 65 ℃～70 ℃; The 4th step is crosslinked: add cross-linking agent aqueous solution in the material after foaming, carry out crosslinkedly under the condition of continue mediating, crosslinking time is 3～15min, and temperature is controlled at 60 ℃～70 ℃, thereby makes slurry explosive.
3. slurry explosive and the method for making thereof of utilizing waste single base propellant to make according to claim 1 and 2 is characterized in that antifreezing agent is an ethylene glycol, and whipping agent is NaNO
2The aqueous solution, linking agent are the mixed aqueous solutions of potassium bichromate and borax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110932A CN1037090C (en) | 1995-02-06 | 1995-02-06 | Slurry explosive and mfg. method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110932A CN1037090C (en) | 1995-02-06 | 1995-02-06 | Slurry explosive and mfg. method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1128743A true CN1128743A (en) | 1996-08-14 |
| CN1037090C CN1037090C (en) | 1998-01-21 |
Family
ID=5078260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95110932A Expired - Fee Related CN1037090C (en) | 1995-02-06 | 1995-02-06 | Slurry explosive and mfg. method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037090C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357235C (en) * | 2006-04-14 | 2007-12-26 | 安徽盾安化工集团有限公司 | TNT-free powdered modified ammonium nitrate-fuel oil explosive and preparation process thereof |
| CN100357234C (en) * | 2006-04-14 | 2007-12-26 | 安徽盾安化工集团有限公司 | Powdered ammonium nitrate-fuel oil explosive and production process thereof |
| CN106565391A (en) * | 2016-10-26 | 2017-04-19 | 山西江阳兴安民爆器材有限公司 | Expired propellant containing high-detonation-velocity water-resistant type seismic explosive column and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3235424A (en) * | 1965-09-20 | 1966-02-15 | Hercules Powder Co Ltd | High density water-containing blasting materials containing ferrosilicon and ammonium nitrate |
-
1995
- 1995-02-06 CN CN95110932A patent/CN1037090C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357235C (en) * | 2006-04-14 | 2007-12-26 | 安徽盾安化工集团有限公司 | TNT-free powdered modified ammonium nitrate-fuel oil explosive and preparation process thereof |
| CN100357234C (en) * | 2006-04-14 | 2007-12-26 | 安徽盾安化工集团有限公司 | Powdered ammonium nitrate-fuel oil explosive and production process thereof |
| CN106565391A (en) * | 2016-10-26 | 2017-04-19 | 山西江阳兴安民爆器材有限公司 | Expired propellant containing high-detonation-velocity water-resistant type seismic explosive column and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037090C (en) | 1998-01-21 |
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