WO2016049725A1 - Processo de prensagem de elementos de retardo para iniciadores não elétricos - Google Patents
Processo de prensagem de elementos de retardo para iniciadores não elétricos Download PDFInfo
- Publication number
- WO2016049725A1 WO2016049725A1 PCT/BR2015/050165 BR2015050165W WO2016049725A1 WO 2016049725 A1 WO2016049725 A1 WO 2016049725A1 BR 2015050165 W BR2015050165 W BR 2015050165W WO 2016049725 A1 WO2016049725 A1 WO 2016049725A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- dosing
- stage
- delay
- pressing
- Prior art date
Links
Classifications
-
- 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
- C06B21/0041—Shaping the mixture by compression
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C5/00—Fuses, e.g. fuse cords
- C06C5/06—Fuse igniting means; Fuse connectors
Definitions
- This patent refers to improvements introduced in the delay element pressing process applied to non-electrical explosive initiators in general and explosion accessories in particular produced to provide the precise burn time (delay time) for the continuity of the blast train as programmed by the detonation engineering, optimized process that achieves homogeneity and regularity of the compressed material's apparent density, bringing advantages of decreased firing time variability, greater repeatability and accurate dosing of delay mixtures and lower variation in height.
- Refilling of the dosing compartment is by automatic transport of the compartment to the loading room. powders, which is insulated from the press and operator by the concrete wall and the steel safety door. To automatically refill the retard mixture, the safety door opens automatically, the compartment in position with the dosing hole closed is transported by a pneumatic cylinder to the refill room, the door closes, and the 10 hopper funnels. compartment are automatically filled with delay mixture;
- the compartment Upon completion of a dosing set, the compartment is moved to align with the bottom of the delay mix hopper. Automatically, a pneumatic device vibrates the compartment for a few seconds so that the granules completely fill the dosing funnels. The housing moves back in the direction of return to the pressing section so that as it passes flush with the Celeron plate (a low friction engineering material), the housing dosing funnels are filled with the correct volume. retardation mixing granules;
- the rotating cylinder containing 10 row holes corresponding to a pallet row containing the retarding elements is in the position where the holes are in communication with the conductive rubber hopper holes;
- a pneumatic vibrator vibrates the cylinder for two seconds so that all dosing holes are filled by granulated azide. The cylinder then rotates 180 degrees in the direction indicated, pouring the volume corresponding to between 60 and 80 mg of lead azide over the alignment funnel, and from there into the retarding element, over the retarding mixture;
- the pallet then follows a conveyor belt for the PETN dosing and pressing bay, which is in the same room but separated from the azide hopper and protected by a concrete half wall;
- a horizontal pneumatic cylinder positions the pallet with the first 10-element row aligned with a set of 10 vertical punches similar to the final delay mix compaction assembly;
- PETN by action of the set of vertical pneumatic cylinders, and compact the load of PETN. Note that in this process the lead azide charge is not directly compacted, but is encapsulated between the retard mixture charge and the PETN charge. This process ensures greater efficiency of azide initiation of PETN, which results in much lower azide loads than usual in delayed fuses, and represents greater process safety;
- the pallet (matrix), is positioned in front of the punches, to be removed by the operator; and [019] I) Pallets are taken to the retard fuse press.
- object of the present invention was developed to overcome the disadvantages, drawbacks, limitations and technical problems of said current process through improvements that obtain homogeneity and regularity of apparent density of the compressed material, bringing advantages of reducing variability of firing time, greater repeatability and accuracy of delay mixture dosing and less variation in height.
- Figure 1 which shows a schematic drawing of the mix feeder in its stage 1:
- Figure 2 which shows a schematic drawing of the mix feeder at its stage 2:
- Figure 3 which shows a schematic drawing of the mixing doser at its stage 3:
- Figure 4 which shows a schematic drawing of the mixing doser in its stage 4.
- the delay element pressing process of the present patents proceeds in the following sequence:
- the spare dies are filled with empty injected zamak tubes (T) and programmed into the control panel. control the number of successive delay mix dosages corresponding to the delay time to be produced by supplementing with the following operations:
- Stage 1 The dosing plate holes (1-B) are aligned with the bottom of the dosing funnel (1-A) by filling the holes with the required amount of powder retardant mixture (3); [038] Stage 2: The precompaction punch (1-C) descends by compacting the powder (3) into the holes, obtaining the compacted powder cylindrical pellet (3-A);
- Stage 3 The dosing plate (1-B) moves close to the bottom of the dosing funnel (1-A) and the table (2-A) leaving a cylindrical compacted powder pellet (3-A) constant volume aligned with the pressing die (2-C) and the final compaction punch (2-B);
- Stage 4 The final compaction punch (2-B) compresses the compressed powder cylindrical pellet (3-A) to obtain delayed blend compressed powder (3- B) within the zamak tube;
- Stage 5 The press logic controller then performs successive dosing and transfer / compression of the delay mix pellet, as many times as programmed for each tube, until the total number of elements is completed.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Braking Arrangements (AREA)
- Extrusion Of Metal (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2015327709A AU2015327709A1 (en) | 2014-10-03 | 2015-10-01 | Process for pressing delay elements for non-electric initiators |
EP15847794.3A EP3222604A1 (en) | 2014-10-03 | 2015-10-01 | Process for pressing delay elements for non-electric initiators |
EA201790783A EA201790783A1 (ru) | 2014-10-03 | 2015-10-01 | Способ прессования замедлителей для неэлектрических инициаторов |
CONC2017/0004485A CO2017004485A2 (es) | 2014-10-03 | 2017-05-03 | Proceso de prensado de elementos de retardo para iniciadores no eléctricos |
ZA2017/03085A ZA201703085B (en) | 2014-10-03 | 2017-05-04 | Process for pressing delay elements for non-electric initiators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR102014024711A BR102014024711A2 (pt) | 2014-10-03 | 2014-10-03 | processo de prensagem de elementos de retardo para iniciadores não elétricos |
BRBR1020140247114 | 2014-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016049725A1 true WO2016049725A1 (pt) | 2016-04-07 |
Family
ID=55629182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2015/050165 WO2016049725A1 (pt) | 2014-10-03 | 2015-10-01 | Processo de prensagem de elementos de retardo para iniciadores não elétricos |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3222604A1 (pt) |
AU (1) | AU2015327709A1 (pt) |
BR (1) | BR102014024711A2 (pt) |
CO (1) | CO2017004485A2 (pt) |
EA (1) | EA201790783A1 (pt) |
WO (1) | WO2016049725A1 (pt) |
ZA (1) | ZA201703085B (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113758382A (zh) * | 2021-10-11 | 2021-12-07 | 葛洲坝易普力(湖南)科技有限公司 | 一种二氧化碳相变膨胀激发管全自动化生产线 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271233A1 (en) * | 1986-11-17 | 1988-06-15 | Eti Explosives Technologies International Inc. | Non-electric detonators without a percussion element |
US4821646A (en) * | 1987-06-29 | 1989-04-18 | Cxa Ltd./Cxa Ltee | Delay initiator for blasting |
BR9505497A (pt) * | 1995-12-15 | 1997-11-04 | Ibq Ind Quimicas Ltda | Processo para fabricação de detonador de retardo e produto resultante |
BR8302737U (pt) * | 2003-09-26 | 2005-06-14 | Britanite S A Ind Quimicas | Módulo de retardo não elétrico de precisão |
CN102675014A (zh) * | 2012-05-28 | 2012-09-19 | 广东明华机械有限公司 | 一种延期体群压系统以及延期体安装方法 |
CN202968421U (zh) * | 2012-10-31 | 2013-06-05 | 四川省宜宾威力化工有限责任公司 | 雷管装配自动稳压延时装置 |
-
2014
- 2014-10-03 BR BR102014024711A patent/BR102014024711A2/pt not_active Application Discontinuation
-
2015
- 2015-10-01 AU AU2015327709A patent/AU2015327709A1/en not_active Abandoned
- 2015-10-01 EA EA201790783A patent/EA201790783A1/ru unknown
- 2015-10-01 WO PCT/BR2015/050165 patent/WO2016049725A1/pt active Application Filing
- 2015-10-01 EP EP15847794.3A patent/EP3222604A1/en not_active Withdrawn
-
2017
- 2017-05-03 CO CONC2017/0004485A patent/CO2017004485A2/es unknown
- 2017-05-04 ZA ZA2017/03085A patent/ZA201703085B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271233A1 (en) * | 1986-11-17 | 1988-06-15 | Eti Explosives Technologies International Inc. | Non-electric detonators without a percussion element |
US4821646A (en) * | 1987-06-29 | 1989-04-18 | Cxa Ltd./Cxa Ltee | Delay initiator for blasting |
BR9505497A (pt) * | 1995-12-15 | 1997-11-04 | Ibq Ind Quimicas Ltda | Processo para fabricação de detonador de retardo e produto resultante |
BR8302737U (pt) * | 2003-09-26 | 2005-06-14 | Britanite S A Ind Quimicas | Módulo de retardo não elétrico de precisão |
CN102675014A (zh) * | 2012-05-28 | 2012-09-19 | 广东明华机械有限公司 | 一种延期体群压系统以及延期体安装方法 |
CN202968421U (zh) * | 2012-10-31 | 2013-06-05 | 四川省宜宾威力化工有限责任公司 | 雷管装配自动稳压延时装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113758382A (zh) * | 2021-10-11 | 2021-12-07 | 葛洲坝易普力(湖南)科技有限公司 | 一种二氧化碳相变膨胀激发管全自动化生产线 |
CN113758382B (zh) * | 2021-10-11 | 2024-05-03 | 葛洲坝易普力(湖南)科技有限公司 | 一种二氧化碳相变膨胀激发管全自动化生产线 |
Also Published As
Publication number | Publication date |
---|---|
AU2015327709A1 (en) | 2017-06-29 |
EA201790783A1 (ru) | 2017-09-29 |
EP3222604A1 (en) | 2017-09-27 |
ZA201703085B (en) | 2018-09-26 |
CO2017004485A2 (es) | 2017-07-28 |
BR102014024711A2 (pt) | 2016-05-24 |
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