WO2015004675A1 - Detonator - Google Patents
Detonator Download PDFInfo
- Publication number
- WO2015004675A1 WO2015004675A1 PCT/IN2014/000041 IN2014000041W WO2015004675A1 WO 2015004675 A1 WO2015004675 A1 WO 2015004675A1 IN 2014000041 W IN2014000041 W IN 2014000041W WO 2015004675 A1 WO2015004675 A1 WO 2015004675A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detonators
- detonator
- safe
- safety
- delay
- Prior art date
Links
- 239000002360 explosive Substances 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- AGUIVNYEYSCPNI-UHFFFAOYSA-N N-methyl-N-picrylnitramine Chemical group [O-][N+](=O)N(C)C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O AGUIVNYEYSCPNI-UHFFFAOYSA-N 0.000 description 4
- TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- XBDYBAVJXHJMNQ-UHFFFAOYSA-N Tetrahydroanthracene Natural products C1=CC=C2C=C(CCCC3)C3=CC2=C1 XBDYBAVJXHJMNQ-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000011076 safety test Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000001540 azides Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- ZGCHATBSUIJLRL-UHFFFAOYSA-N hydrazine sulfate Chemical compound NN.OS(O)(=O)=O ZGCHATBSUIJLRL-UHFFFAOYSA-N 0.000 description 1
- WETZJIOEDGMBMA-UHFFFAOYSA-L lead styphnate Chemical compound [Pb+2].[O-]C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C([O-])=C1[N+]([O-])=O WETZJIOEDGMBMA-UHFFFAOYSA-L 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- IGWIYXUTBNGZFJ-UHFFFAOYSA-N nickel palladium Chemical compound [Ni].[Pd].[Pd].[Pd] IGWIYXUTBNGZFJ-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/11—Initiators therefor characterised by the material used, e.g. for initiator case or electric leads
Definitions
- the present invention relates to a process of manufacturing of the detonators and more particularly to the safe lead free detonator. Furthermore the present discloses of a simple method of manufacturing a detonator which is safe to handle and involves no additional costs.
- detonators contain primary explosives like lead azide and lead styphnate. These two chemicals are very sensitive to friction and impact. The detonators made of these chemicals should be handled very carefully.
- a new detonator has been made by substituting the hazardous chemicals with a new chemical primer, which is relatively much safer & do not contain lead.
- a new detonator was developed which can be used with safety fuse, electrical fuse head or non-electric shock tube. It can be instantaneous or with delay. These detonators are made without any lead salts and sensitive primary explosives. These detonators are safe to handle. These detonators function exactly like conventional detonators.
- the present invented detonator manufacturing is simple. They are safe to handle. No additional costs are involved.
- Figure 1 is a horizontal section of the detonator in which the components are shown as shell ( 1 ), P.E.T.N (2), N.H.N. +A1. Powder (3), Bead (4), Fuse Wire (5), Fettering (6), Comb (6), Plug (8), Lead Wire (9).
- a detonator shell can be made of copper coated steel; aluminium; copper; brass etc.
- a delay element can be chemical delay or electronic delay.
- a cup can be a metallic cup made of steel; copper lead or aluminium etc.
- Secondary explosive can be RDX; HMX; tetryl; PETN; teracene etc.
- the safe primary explosive can be complex compound made of nitrates of zinc; cadmium; nickel; palladium and/or platinum with hydrazine sulphate; Hydrazine hydrate; anhydrous hydrazine with various concentration varying from 5% - 98%.
- Example-1
- Aluminium shell 45 mm length is taken. In that 400 ⁇ 100 mg of PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ⁇ 100 mg of primer is added and over that one cup is placed and pressed. 50 detonators are made in same way & assembled with electrical squib. All the safety and performance tests are conducted and results are found to be as per the specifications.
- Aluminium shell 45 mm length is taken. In that 400 ⁇ 100 mg of PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ⁇ 100 mg of primer is added. A delay element of required timing is placed over the primer charge and pressed. The filled shells are assembled with delay fuse head and long plug and crimped. Similar type of 50 detonators are made. All the safety and performance tests are conducted and results are found to be as per the specifications.
- Example-3 Example-3:
- Aluminium shell 45 mm length is taken. In that 400 ⁇ 100 mg of PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ⁇ 100 mg of primer is added and over that the cup is placed and pressed. 50 numbers are made and fired with safety fuse. Results are as per the specification.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fuses (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Air Bags (AREA)
Abstract
In the present invention; a new detonator was developed which can be used with safety fuse, electrical fuse head or non-electric shock tube. It can be instantaneous or with delay. These detonators are made without any lead salts and sensitive primary explosives. These detonators are safe to handle. These detonators function exactly like conventional detonators. The application of these detonators is also same as that of conventional detonators. The safety in handling is very high when compared to conventional detonator
Description
Detonator
FIELD OF THE INVENTION:
The present invention relates to a process of manufacturing of the detonators and more particularly to the safe lead free detonator. Furthermore the present discloses of a simple method of manufacturing a detonator which is safe to handle and involves no additional costs.
BACKGROUND OF THE INVENTION:
Generally used detonators contain primary explosives like lead azide and lead styphnate. These two chemicals are very sensitive to friction and impact. The detonators made of these chemicals should be handled very carefully.
A new detonator has been made by substituting the hazardous chemicals with a new chemical primer, which is relatively much safer & do not contain lead.
SUMMARY OF THE INVENTION:
In the present invention, a new detonator was developed which can be used with safety fuse, electrical fuse head or non-electric shock tube. It can be instantaneous or with delay. These detonators are made without any lead salts and sensitive primary explosives. These detonators are safe to handle. These detonators function exactly like conventional detonators.
The application of these detonators is also same as that of conventional detonators. The safety in handling is very high when compared to conventional detonators.
Earlier safe and lead free detonators were made. But these detonators are costly and processing of these detonators also tedious.
The present invented detonator manufacturing is simple. They are safe to handle. No additional costs are involved.
The technology is safe & simple. The products invented are safer & contain no lead salts. A detonator shell; secondary explosive; A delay element; A safe primary explosive; A metallic cup.
DESCRIPTION OF THE DRAWINGS:
The invention is further described by way of example with reference to the accompanying drawings in which:
Figure 1 is a horizontal section of the detonator in which the components are shown as shell ( 1 ), P.E.T.N (2), N.H.N. +A1. Powder (3), Bead (4), Fuse Wire (5), Fettering (6), Comb (6), Plug (8), Lead Wire (9).
DESCRIPTION OF THE INVENTION:
A detonator shell can be made of copper coated steel; aluminium; copper; brass etc.
A delay element can be chemical delay or electronic delay.
A cup can be a metallic cup made of steel; copper lead or aluminium etc.
Secondary explosive can be RDX; HMX; tetryl; PETN; teracene etc.
The safe primary explosive can be complex compound made of nitrates of zinc; cadmium; nickel; palladium and/or platinum with hydrazine sulphate; Hydrazine hydrate; anhydrous hydrazine with various concentration varying from 5% - 98%.
Description of the specific embodiment is given by way of examples:
Example-1 :
Aluminium shell 45 mm length is taken. In that 400 ± 100 mg of PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ± 100 mg of primer is added and over that one cup is placed and pressed. 50 detonators are made in same way & assembled with electrical squib. All the safety and performance tests are conducted and results are found to be as per the specifications.
Example-2:
Aluminium shell 45 mm length is taken. In that 400 ± 100 mg of PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ± 100 mg of primer is added. A delay element of required timing is placed over the primer charge and pressed. The filled shells are assembled with delay fuse head and long plug and crimped. Similar type of 50 detonators are made. All the safety and performance tests are conducted and results are found to be as per the specifications.
Example-3:
Aluminium shell 45 mm length is taken. In that 400 ± 100 mg of PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ± 100 mg of primer is added and over that the cup is placed and pressed. 50 numbers are made and fired with safety fuse. Results are as per the specification.
Claims
1. A detonator which comprises of a safety fuse, electrical fuse head of non-electric shock tube, with instantaneous or with delay and having made without any lead salts and sensitive primary explosives whereby making them safe to handle while functioning exactly like conventional detonators.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014288807A AU2014288807A1 (en) | 2013-07-12 | 2014-01-21 | Detonator |
| EP14823592.2A EP3019820A1 (en) | 2013-07-12 | 2014-01-21 | Detonator |
| US14/904,107 US20160153752A1 (en) | 2013-07-12 | 2014-01-21 | Detonator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN3105/CHE/2013 | 2013-07-12 | ||
| IN3105CH2013 | 2013-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015004675A1 true WO2015004675A1 (en) | 2015-01-15 |
Family
ID=52279426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IN2014/000041 WO2015004675A1 (en) | 2013-07-12 | 2014-01-21 | Detonator |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160153752A1 (en) |
| EP (1) | EP3019820A1 (en) |
| AU (1) | AU2014288807A1 (en) |
| WO (1) | WO2015004675A1 (en) |
-
2014
- 2014-01-21 US US14/904,107 patent/US20160153752A1/en not_active Abandoned
- 2014-01-21 AU AU2014288807A patent/AU2014288807A1/en not_active Abandoned
- 2014-01-21 EP EP14823592.2A patent/EP3019820A1/en not_active Withdrawn
- 2014-01-21 WO PCT/IN2014/000041 patent/WO2015004675A1/en active Application Filing
Non-Patent Citations (1)
| Title |
|---|
| CHHABRA, J. S. ET AL.: "Synthesis, characterization and thermal studies of (Ni/Co) metal salts of hydrazine: potential initiatory compounds.", JOURNAL OF HAZARDOUS MATERIALS, vol. 99, no. 3, 2003, pages 225 - 239, XP055312648 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2014288807A1 (en) | 2016-01-28 |
| US20160153752A1 (en) | 2016-06-02 |
| EP3019820A1 (en) | 2016-05-18 |
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