EP0123008B1 - Zusammensetzungen vom "Emulsion explosiv" Typ, Verfahren zu ihrer Herstellung und Anwendung dieser Zusammensetzungen - Google Patents
Zusammensetzungen vom "Emulsion explosiv" Typ, Verfahren zu ihrer Herstellung und Anwendung dieser Zusammensetzungen Download PDFInfo
- Publication number
- EP0123008B1 EP0123008B1 EP83870026A EP83870026A EP0123008B1 EP 0123008 B1 EP0123008 B1 EP 0123008B1 EP 83870026 A EP83870026 A EP 83870026A EP 83870026 A EP83870026 A EP 83870026A EP 0123008 B1 EP0123008 B1 EP 0123008B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inert
- parts
- composition according
- explosive
- premix
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/001—Fillers, gelling and thickening agents (e.g. fibres), absorbents for nitroglycerine
-
- 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
- C06B21/0033—Shaping the mixture
-
- 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
- C06B47/145—Water in oil emulsion type explosives in which a carbonaceous fuel forms the continuous phase
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S149/00—Explosive and thermic compositions or charges
- Y10S149/11—Particle size of a component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S149/00—Explosive and thermic compositions or charges
- Y10S149/11—Particle size of a component
- Y10S149/112—Inorganic nitrogen-oxygen salt
Definitions
- the present invention relates to explosive compositions of the water-in-oil emulsion type, their manufacturing process and their application.
- Another means, of more recent origin, consists in producing a much more intimate mixture between the solution of oxidizing nitrates and the fuel oil by combining them in the form of an emulsion.
- an aqueous solution of the oxidizer is emulsified in the form of a dispersed phase inside a continuous carbonaceous combustible phase; a lightening constituent introduced in the form of mechanically included air, either in the form of a gas obtained by chemical means, or also in the form of microbubbles either spherical of the "microballoon" type, or in any form such as perlites, polyurethane, polyvinylidene chloride or expanded polystyrene is necessary to adjust the density and ensure sensitization in diameters which can be greatly reduced (of the order of 30 mm and less).
- Patents US-A-3,447,978.4,008 108.4 110 134.4138,281 and 4,141,767, EP-A-0,019,458, DE-A-235,005 and BE-A-881,116 and 880,736 describe genre of compositions; numerous patents specify the nature of the oxidizer (s) used, that of the combustible oily phase, as well as that of the emulsifiers and gaseous constituents used.
- an explosive emulsion consists of approximately 93 to 97% of an emulsified gel (in which 5 to 15 parts of water enter, 70 to 80 parts of one or more salts oxidizing minerals, 3 to 6 parts of combustible oil and possibly wax and 1 to 2 parts of emulsifier), to which approximately 3 to 7% of lightening material is added.
- Document EP-A-18 085 discloses an explosive composition of the water-in-oil emulsion type comprising an emulsified gel, an inert lightening component and NaCl in an amount of 25%.
- the emulsified gel consists of a solution of NH 4 N0 3 in water, an oily phase and an emulsifier.
- the present invention relates firstly to an explosive composition of the water-in-oil emulsion type, comprising at least one emulsified gel, consisting of an oxidizing solution obtained from at least one mineral salt dissolved in water and d '' a combustible phase containing at least one liquid hydrocarbon and an emulsifier, associated with a lightening constituent, inert or reactive and, optionally, with one or more oxidizing salts or metallic fuels and / or inert materials, characterized in that '' it contains from 4 to 55% of inert or semi-inert solid materials which are silicates or diatomaceous earths or a mixture of the two at a rate of 1 to 4 parts of the former and 0 to 7 parts of the latter, depending on the degree of plasticity that we want to obtain.
- emulsified gel consisting of an oxidizing solution obtained from at least one mineral salt dissolved in water and d '' a combustible phase containing at least one liquid hydro
- inert and "semi-inert” must be understood in their acceptance of the technique of explosives. Mixtures of emulsified gel with inert or semi-inert materials, in proportions ranging from 96/4 to 45/55, always constitute true explosives whose detonation is complete and normal for as much as they contain the usual lightening component for water-in-oil type emulsions regulating their density and sensitization.
- the safety character is obtained by the fact that the intervention of inert or semi-inert materials within the emulsified and aerated gel is marked by a reduction in its detonation speed (the latter being able to be adjusted to values less than 2000 m / s), and its energy potential, which are just as many fundamental factors in regulating the safety of an explosive.
- the compositions comprise additions of inert materials from the family of chlorides or alkaline bicarbonates up to 10 to 45%, which makes it possible to obtain sureties such as those defined above, the salts to be taken into consideration being, inter alia, NaCI or NaHC0 3 .
- This inert material can in particular be, in the case where it is desired to ensure safety of the P5 type, NaCl, with a particle size 250 to 500 microns and preferably at a content of 10 to 45%.
- the inert material can be a premix of NaCl with a particle size of 250 to 500 microns, of calcium silicate and of diatomaceous earth, with a preferential content of 17 to 45%, comprising 15 to 38 parts of NaCl, 1 to 4 parts of calcium silicate and 0 to 7 parts of diatomaceous earth, which ensures both PS type security and paper cartridge filling on a conventional machine.
- a semi-inert material which is a premix of N0 3 Na or N0 3 K, of which 80 to 90% of the grains are between 53 and 125 microns, and of NH 4 CI of which 50% of the grains are larger than 200 microns, calcium silicate and diatomaceous earth, at a content advantageously between 25 and 43%, comprising 11 to 24 parts of N0 3 Na or NO 3 K, 7 to 15 parts of NH 4 CI, 1 to 2 parts of silicate and 4 to 5 parts of diatomaceous earth, ensuring both P5 type safety and cartridge filling on a conventional machine.
- part of the inert materials is calcium silicate, preferably of the silene or Calflo types and the diatomaceous earth is of the hyflosupersel type.
- the lightening agent must have an apparent density of less than 30 g / liter; the one that has given the best results so far is expanded polystyrene at 18 g / liter.
- an additional supply of oxygen must be provided to the composition by adding one or more inorganic oxidants.
- This oxidant can be an inorganic nitrate, preferably of high molecular weight, optionally combined with an inorganic perchlorate.
- inert materials the content of which remains between the limits already defined (from 4 to 55%), they consist essentially of extinguishing salts (NaCI for example) and sand.
- NaCI extinguishing salts
- the base gel content can be limited to 25 - 30% of the final composition.
- the emulsion containing the lightening agent could be made extrudable on the cutting machine, without enjoying any kind of safety in the presence of an explosive gas atmosphere.
- inert materials in the case where 10% of inert materials are used, it will be a premix comprising 2.5 to 3% of calcium silicate and 7.5 to 7% of diatomaceous earth; in the case where it is desired to use for example 45% of inert materials, it will be a premix consisting of 2.5 to 6% of silicate, 7.5 to 14% of diatomaceous earth and 25 to 35% of sand.
- the diatomaceous earths could be replaced by hydrophobic, non-inert materials, such as calcium stearate; for this purpose, it is preferable to combine 1 to 3 parts of the latter with 3 to 7 parts of silicate; unlike the other additive materials taken into account until now, it is necessary to take into account in the calculation of the thermodynamic balance of the explosive of the fact that the stearates have an energy potential which takes part in the primary reaction of detonation.
- Inert or semi-inert materials used both for extrusion and for safety in an explosive atmosphere, are, in the form of a premix, fed by means of a metering device into a continuous or discontinuous mixer, or they meet either the gel hot leaving the foaming device and the lightening component (continuous process) or a cold gel having already undergone a certain storage to which is also added the lightening component.
- the finished product is poured or pumped onto the conveyor belt of the cartoning machine; if a hot gel is used, this strip must be cooled so that the temperature does not exceed approximately 40 ° C at the time of cutting.
- the invention extends to the application of the explosive compositions of the invention having either a safety character with respect to the atmospheres encountered in coal mines, or the ability to be paper cartridges on a machine of the type classic, that is to say these two properties at the same time, while preserving with the explosive, even in small diameter of the normal characteristics of detonation.
- the gel prepared at 75 ° C consists of:
- 50% of the emulsified gel (hot or cooled) is mixed with 45% NaCl and 5% microbeads of type C15 - 250; NaCI is of a type whose particle size is between 250 and 500 microns.
- Its safety is of the P5 type, it is not intended for extrusion on a Rollex machine, but it can be carted in plastic sheath on a Chub-Pack machine.
- Example 1 50% of the emulsified gel of Example 1 is mixed with 45% of a premix consisting of 38 parts of NaCl and 7 parts of guhr and with 5% of Microbeads C15 - 250.
- the explosive emulsion is such that it has both the safety characteristics of a P5 type explosive and the property of being paper-insertable on the cutting machine; in 30 mm, the density is 1.15 and the speed at detonator No. 8 is 2870 m / s for the fresh explosive; after 3 months, the speed is 2700 m / s.
- the critical diameter of such a composition is between 10 and 15 mm; in diameter 15 mm, the speed is 2300 m / s. In ballistic mortar, the relative power is 20.8% of that of blasting gelatin.
- the characteristics of the explosive emulsion of Example 2 do not change, but the extrudability is even better if the 7% of guhr is replaced by a mixture comprising 2% of calcium silicate, of type Silene or Calflo and 5% of diatomaceous earth of the Hyflosupersel type.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Colloid Chemistry (AREA)
- Cosmetics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Liquid Carbonaceous Fuels (AREA)
- General Preparation And Processing Of Foods (AREA)
Claims (11)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8383870026T DE3380302D1 (en) | 1983-03-18 | 1983-03-18 | Compositions of the "emulsion explosive" type, process for their manufacture and use of these compositions |
EP83870026A EP0123008B1 (de) | 1983-03-18 | 1983-03-18 | Zusammensetzungen vom "Emulsion explosiv" Typ, Verfahren zu ihrer Herstellung und Anwendung dieser Zusammensetzungen |
AT83870026T ATE45135T1 (de) | 1983-03-18 | 1983-03-18 | Zusammensetzungen vom ''emulsion explosiv'' typ, verfahren zu ihrer herstellung und anwendung dieser zusammensetzungen. |
ZA838344A ZA838344B (en) | 1983-03-18 | 1983-11-09 | Compositions of the"explosive emulsion"type,process for their manufacture and application of these compositions |
US06/585,554 US4566920A (en) | 1983-03-18 | 1984-03-02 | Compositions of the explosive emulsion type, process for their manufacture and application of these compositions |
JP59050148A JPS59232988A (ja) | 1983-03-18 | 1984-03-14 | エマルジヨン型爆発性組成物とその製法 |
AU25695/84A AU563845B2 (en) | 1983-03-18 | 1984-03-16 | Water-in-oil emulsion explosive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP83870026A EP0123008B1 (de) | 1983-03-18 | 1983-03-18 | Zusammensetzungen vom "Emulsion explosiv" Typ, Verfahren zu ihrer Herstellung und Anwendung dieser Zusammensetzungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0123008A1 EP0123008A1 (de) | 1984-10-31 |
EP0123008B1 true EP0123008B1 (de) | 1989-08-02 |
Family
ID=8191632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83870026A Expired EP0123008B1 (de) | 1983-03-18 | 1983-03-18 | Zusammensetzungen vom "Emulsion explosiv" Typ, Verfahren zu ihrer Herstellung und Anwendung dieser Zusammensetzungen |
Country Status (7)
Country | Link |
---|---|
US (1) | US4566920A (de) |
EP (1) | EP0123008B1 (de) |
JP (1) | JPS59232988A (de) |
AT (1) | ATE45135T1 (de) |
AU (1) | AU563845B2 (de) |
DE (1) | DE3380302D1 (de) |
ZA (1) | ZA838344B (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6090888A (ja) * | 1983-10-21 | 1985-05-22 | 日本油脂株式会社 | 油中水型エマルシヨン爆薬の製造方法 |
MY100181A (en) * | 1985-10-15 | 1990-03-29 | Dyno Hutchison Explosives Ltd | Emulsion containing explosive compositions. |
EP0238210A3 (en) * | 1986-03-14 | 1989-05-24 | Imperial Chemical Industries Plc | Solid explosive composition |
US4678524A (en) * | 1986-06-18 | 1987-07-07 | Ireco Incorporated | Cast explosive composition and method |
DE3712488C1 (en) * | 1987-04-13 | 1988-05-05 | Dynamit Nobel Ag | Use of silicone oils in water-in-oil emulsion explosives, and silicone oil-containing water-in-oil emulsion explosives having reduced surface tackiness |
MW1888A1 (en) * | 1987-06-29 | 1989-03-08 | Aeci Ltd | Explosive |
SE8800593L (sv) * | 1988-02-22 | 1989-08-23 | Nitro Nobel Ab | Spraengaemneskomposition |
US5271779A (en) * | 1988-02-22 | 1993-12-21 | Nitro Nobel Ab | Making a reduced volume strength blasting composition |
US4867920A (en) * | 1988-10-14 | 1989-09-19 | Ireco Incorporated | Emulsion explosive manufacturing method |
GB8907992D0 (en) * | 1989-04-10 | 1989-05-24 | Ici Plc | Emulsion explosive |
US6554927B1 (en) * | 2000-11-24 | 2003-04-29 | Sigmabond Technologies Corporation | Method of explosive bonding, composition therefor and product thereof |
RU2565637C1 (ru) * | 2014-06-10 | 2015-10-20 | Федеральное казенное предприятие "Государственный научно-исследовательский институт химических продуктов" (ФКП "ГосНИИХП") | Метательный заряд для 9 х 19 мм пистолетного патрона с облегченной пулей со стальным сердечником |
CN110655431B (zh) * | 2019-10-14 | 2023-11-10 | 山西北化关铝化工有限公司 | 一种瓦斯条件下专用射孔弹用主装药及其制备方法和应用 |
CN113582792A (zh) * | 2021-08-20 | 2021-11-02 | 北京理工大学 | 一种发泡型富氟氧化剂基工业炸药及其制备方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1315197A (en) * | 1970-07-13 | 1973-04-26 | Explosives & Chem Prod | Explosive gel compositions |
DE2350605C3 (de) * | 1973-10-09 | 1979-02-08 | Idl Chemicals, Hyderabad (Indien) | Verfahren zur Herstellung eines kapselempfindlichen, gelartigen Wettersprengstoffes |
AU515896B2 (en) * | 1976-11-09 | 1981-05-07 | Atlas Powder Company | Water-in-oil explosive |
US4141767A (en) * | 1978-03-03 | 1979-02-27 | Ireco Chemicals | Emulsion blasting agent |
NZ192888A (en) * | 1979-04-02 | 1982-03-30 | Canadian Ind | Water-in-oil microemulsion explosive compositions |
US4231821A (en) * | 1979-05-21 | 1980-11-04 | Ireco Chemicals | Emulsion blasting agent sensitized with perlite |
US4294633A (en) * | 1979-06-07 | 1981-10-13 | Clay Robert B | Blasting composition |
US4394198A (en) * | 1980-08-25 | 1983-07-19 | Nippon Oil And Fats Company, Limited | Water-in-oil emulsion explosive composition |
US4364782A (en) * | 1980-09-12 | 1982-12-21 | Ireco Chemicals | Permissible slurry explosive |
US4371408A (en) * | 1980-10-27 | 1983-02-01 | Atlas Powder Company | Low water emulsion explosive compositions optionally containing inert salts |
JPS57117306A (en) * | 1981-01-12 | 1982-07-21 | Nippon Oil & Fats Co Ltd | Water-in-oil emulsion type explosive composition |
US4414044A (en) * | 1981-05-11 | 1983-11-08 | Nippon Oil And Fats, Co., Ltd. | Water-in-oil emulsion explosive composition |
GB2086363B (en) * | 1981-10-12 | 1984-03-07 | Atlas Powder Co | Emulsion explosives containing a reduced amount of water |
JPS59207889A (ja) * | 1983-05-10 | 1984-11-26 | 日本油脂株式会社 | 油中水型エマルシヨン爆薬組成物 |
-
1983
- 1983-03-18 DE DE8383870026T patent/DE3380302D1/de not_active Expired
- 1983-03-18 EP EP83870026A patent/EP0123008B1/de not_active Expired
- 1983-03-18 AT AT83870026T patent/ATE45135T1/de not_active IP Right Cessation
- 1983-11-09 ZA ZA838344A patent/ZA838344B/xx unknown
-
1984
- 1984-03-02 US US06/585,554 patent/US4566920A/en not_active Expired - Fee Related
- 1984-03-14 JP JP59050148A patent/JPS59232988A/ja active Pending
- 1984-03-16 AU AU25695/84A patent/AU563845B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
JPS59232988A (ja) | 1984-12-27 |
ATE45135T1 (de) | 1989-08-15 |
ZA838344B (en) | 1984-07-25 |
US4566920A (en) | 1986-01-28 |
EP0123008A1 (de) | 1984-10-31 |
DE3380302D1 (en) | 1989-09-07 |
AU563845B2 (en) | 1987-07-23 |
AU2569584A (en) | 1984-09-20 |
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