CN105091670A - Intra-hole deepwater blaster - Google Patents
Intra-hole deepwater blaster Download PDFInfo
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- CN105091670A CN105091670A CN201510564080.8A CN201510564080A CN105091670A CN 105091670 A CN105091670 A CN 105091670A CN 201510564080 A CN201510564080 A CN 201510564080A CN 105091670 A CN105091670 A CN 105091670A
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Abstract
The invention discloses an intra-hole deepwater blaster and belongs to the field of hydraulic and hydropower engineering. The intra-hole deepwater blaster is good in sealing effect, capable of improving the effective blow-up rate and suitable for intra-hole deepwater explosion. The intra-hole deepwater blaster comprises an explosion pipe, the lower end of the explosion pipe is plugged and sealed, the top end of the explosion pipe is provided with an upper sealing cover, the upper sealing cover is matched with the explosion pipe in a sealed mode, and a penetrating hole I penetrates through the upper sealing cover in the axial direction. The intra-hole deepwater blaster further comprises a plug, a plug installation step is arranged at the upper end of the upper sealing cover, a penetrating hole II coaxial with the penetrating hole I is formed in the plug, and the penetrating hole II penetrates through the plug. The penetrating hole I and the penetrating hole II form a cable passage through which a detonating cable passes. An elastic sealing ring capable of being arranged on the detonating cable in a sleeving mode and matched with the detonating cable in a sealed mode is arranged between the lower end surface of the plug and the plug installation step. The intra-hole deepwater blaster is simple in structure, good in sealing effect and capable of guaranteeing that explosion is effectively carried out under the condition that water in a hole is deep.
Description
Technical field
The present invention relates to water power hydraulic engineering field, particularly relate to a kind of for Blasting in deep water device in the hole of underwater demolition in drilling hole.
Background technology
Along with the fast development of water power hydraulic engineering construction cause, overburden cover is increasing, from about 40m to about 100m, about 200m, about 300m, about 400m, even more than 500m, this is challenge again and again to water power hydraulic engineering drilling technique, it requires that water power water conservancy driller author constantly weeds out the old and bring forth the new, being ready for the challenge again and again, reaches the probing object of requirements at the higher level.The probing of water power hydraulic engineering cover layer is most widely used is explosion pipe-following drilling technology, this technology is by hand-hole domestic demand blast hole section lower after explosive sealing, utilize the cracked boulder of explosive blasting, loosen closely knit stratum, solve a difficult problem for sleeve pipe follow-up, realize deep covering layer probing.
In current water power hydraulic engineering probing, the underwater demolition method of use, mainly adopts easy waterproof measure, can carry out explosion in certain depth under water; But the depth capacity of current blaster can only reach 140m; For the situation that the degree of depth is larger, as crept in the complicated cover layer of ultra-deep, often must carry out explosion in the hole section of the even larger depth of water of more than 200m, such environment to the resistance to compression of blaster and seal request higher.
Be in the utility model patent of 201120553796.5 at application number, propose a kind of Blasting in deep water cartridge, wire wherein for detonating primer is passed by wire guide from the sidewall of cylindrical shell, on the one hand when blaster is transferred under boring, friction condition between easy generation wire and hole wall, cause wire damaged, serious cause electric leakage, situation that ignition is failed; On the other hand, its wire does not take any sealing means through during cylindrical shell, water can directly enter in cartridge from wire guide, although the region being used for splendid attire explosive seals by arranging seal cover by it, but its detonator employing of igniting directly is installed in the detonator hole on seal cover, and detonator hole and detonator directly coordinate, and its sealing effectiveness is inherently poor, the water capacity easily penetrates into explosive region from detonator hole site, easily causes explosive to lose efficacy; The water entered from wire guide in addition also can cause the impact on detonator, if detonator is placed in water for a long time, causes detonator to lose efficacy due to the infiltration of water, and the junction of wire and detonator also can be exposed in water simultaneously, causes and ignites unsuccessfully.Therefore, for the cartridge in above-mentioned patent, it only can meet the more shallow situation of some depth of waters and use, and opens quick-fried fast.
If above-mentioned patent to be used for depth of water condition comparatively with deep feeling, if the depth of water is more than the situation of 250m, the required time of transferring blaster is on the one hand long, causes and increases wire probability of damage; On the other hand blaster will be placed in water for a long time in decentralization process, due to self seal poor-performing, and the situation that the infiltration of water will cause blaster to lose efficacy.
Summary of the invention
The technical problem that the present invention solves be to provide a kind of sealing effectiveness better, Blasting in deep water device in the hole being applicable to Blasting in deep water in hole that can improve blaster effective fragmentation rate.
The technical solution adopted for the present invention to solve the technical problems is: Blasting in deep water device in hole, comprise the blasting cartridge for splendid attire explosive, the low side shutoff sealing of blasting cartridge, its top is provided with top cover labyrinth, described top cover labyrinth and blasting cartridge are sealed and matched, and are provided with the perforation one run through in the axis of top cover labyrinth; Also comprise plug, the upper end of top cover labyrinth is provided with plug installation step, plug is provided with and a coaxial perforation two of boring a hole, described perforation two runs through plug; Described perforation one and perforation two jointly forms confession and lead the cable passage that quick-fried cable passes; Be provided with between the lower surface of plug with plug installation step can be enclosed within lead on quick-fried cable and with the elastic seal ring of leading quick-fried cable seal and coordinating.
Further: lead quick-fried cable and cable passage is non-interference fit.
Further: perforation one is arranged on the center of top cover labyrinth axis.
Further: plug is threaded with top cover labyrinth and coordinates.
Further: the bottom of blasting cartridge is provided with the lower sealing cover be sealed and matched with blasting cartridge; Top cover labyrinth is threaded with blasting cartridge; Lower sealing cover is threaded with blasting cartridge; Sealing ring is respectively arranged with between top cover labyrinth and blasting cartridge and between lower sealing cover and blasting cartridge.
Further: top cover labyrinth is provided with lacing hole.
Further: the material of blasting cartridge is polypropylene; Blasting cartridge diameter is 70mm ~ 200mm, and length is 1000 ~ 2500mm, and wall thickness is 6 ~ 10mm.
Further: also comprise and lead quick-fried cable, detonator, explosive; Described explosive is placed in blasting cartridge, and described detonator is embedded in explosive; Described one end of leading quick-fried cable is connected with detonator through after cable passage.
Further: described detonator is arranged along blasting cartridge axial stratification, is provided with at least one detonator in every layer; Also comprise balance weight body, described balance weight body is filled in the blasting cartridge of bottom.
Further: described balance weight body is blanc fixe.
The invention has the beneficial effects as follows: by arranging stopper structure, effectively achieve the sealing to cable passage, improve the sealing effectiveness to blaster entirety, the possibility of water permeation when blaster is placed in deep water for a long time can be reduced, improve the effective fragmentation rate of blaster; And owing to drawing leading the axial direction of quick-fried cable from blaster entirety, can avoid in the process owing to transferring blaster the abrasion condition of leading quick-fried cable; The situation avoiding the ignition failure caused due to cable wearing and tearing occurs.Structure of the present invention is simple, and good sealing effect, effectively implements explosion when can guarantee that the depth of water is darker in hole.In addition, by selecting elastic seal ring, extruding elastic seal ring by plug with coordinating of top cover labyrinth, strengthening the sealing effectiveness to leading quick-fried cable; Balance weight body can guarantee that blaster is when flushing liquor proportion is larger, transfers to predetermined blast hole section; Counterweight physical efficiency accelerates the lowering velocity of blaster in addition, reduces required time when blaster is transferred under the darker hole of the degree of depth; Reduce the possibility of water permeation, guarantee the effective fragmentation of blaster energy further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the enlarged diagram of regional area A in Fig. 1;
Fig. 4 is that the blast in Fig. 3 is attempted, and conceals and lead quick-fried cable;
Be labeled as in figure: blasting cartridge 1, top cover labyrinth 2, perforation 1, plug installation step 22, lower sealing cover 3, plug 4, perforation 2 41, lead quick-fried cable 5, cable passage 6, elastic seal ring 7, sealing ring 8, lacing hole 9, detonator 10, explosive 11, balance weight body 12.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
First as follows to the term definition in the present invention: in hole: to refer in the boring of exploratory bore-hole; Deep water in hole: refer to that the water-column at boring domestic demand explosion position reaches the situation of more than 250m.
As shown in Figures 1 to 4, Blasting in deep water device in hole of the present invention, comprise the blasting cartridge 1 for splendid attire explosive, the low side shutoff sealing of blasting cartridge 1, its top is provided with top cover labyrinth 2, described top cover labyrinth 2 is sealed and matched with blasting cartridge 1, is provided with the perforation 1 run through in the axis of top cover labyrinth 2; Also comprise plug 4, the upper end of top cover labyrinth 2 is provided with plug installation step 22, plug 4 is provided with and one 21 coaxial perforation 2 41 of boring a hole, described perforation 2 41 runs through plug 4; Described perforation 1 and perforation 2 41 jointly forms confession and lead the cable passage 6 that quick-fried cable 5 passes; Be provided with between the lower surface of plug 4 and plug installation step 22 can be enclosed within lead on quick-fried cable 5 and with the elastic seal ring 7 of leading quick-fried cable 5 and being sealed and matched.
Wherein, select elastic seal ring 7, when plug 4 coordinates with plug installation step 22, plug 4 can extrude elastic seal ring 7, the sealing between plug 4 and plug installation step 22 can be realized on the one hand, on the other hand, after elastic seal ring 7 extrusion, the sealing effectiveness of leading between quick-fried cable 5 and cable passage 6 can be strengthened.
In addition, lead after quick-fried cable 5 passes from cable passage 6, be in the axial direction of blaster entirety, therefore in the process transferring blaster, hole wall can not occur to the abrasion condition of leading quick-fried cable 5; And generally, preferably perforation 1 is arranged on the center of top cover labyrinth 2 axis.
In addition, realize leading being sealed and matched between quick-fried cable 5 and cable passage 6 owing to being provided with elastic seal ring 7, therefore can easily pass cable passage 6 to lead quick-fried cable 5 when assembling, it is non-interference fit that the present invention will lead quick-fried cable 5 further with cable passage 6.
In addition, for the ease of the installation of plug 4, require that plug 4 produces the extruding force of elastic seal ring 7 after mounting simultaneously, plug 4 can be adopted with top cover labyrinth 2 fit structure that is threaded.The extruding force of plug 4 pairs of elastic seal rings 7 realizes by regulating the matching relationship that is threaded.Certainly, when employing threaded engagement relational expression, for ease of screwing plug 4, position outstanding on plug 4 can be set to hexagonal (hexagon)nut shape structure.
In addition, for the ease of extending blaster, or being convenient to carry out powder charge from the two ends of blaster, the bottom of blasting cartridge 1 can being provided with the lower sealing cover 3 be sealed and matched with blasting cartridge 1; Further, top cover labyrinth 2 can be adopted to be threaded with blasting cartridge 1; Lower sealing cover 3 is threaded with blasting cartridge 1.
In order to strengthen the sealing effectiveness between upper and lower seal cover and blasting cartridge 1 respectively, sealing ring 8 can be respectively arranged with further between top cover labyrinth 2 and blasting cartridge 1 and between lower sealing cover 3 and blasting cartridge 1.
In addition, for the ease of with when transferring with rope be connected, lacing hole 9 can be provided with on top cover labyrinth 2.Lacing hole 9 can be provided with two, as shown in Figures 1 and 2, wears for two and rises cord hole 9 and be symmetrical arranged, be more conducive to the lowering operation to blaster like this.
In addition, in deep water situation time, the pressure to blasting cartridge 1 that hydraulic pressure produces is comparatively large, and therefore there are certain requirements the compression strength of blasting cartridge 1, compression strength is too high, the demolition effect to rock mass when being unfavorable for explosive blasting; Compression strength is too low, the situation easily causing blasting cartridge 1 to be extruded distortion even to crush.The present invention preferably adopts the blasting cartridge 1 of polypropylene material; And according to the difference of the depth of water, and fill the difference of explosive charge, generally arranging blasting cartridge 1 diameter is 70mm ~ 200mm, and length is 1000 ~ 2500mm, and wall thickness is 6 ~ 10mm.
In addition, blaster of the present invention in use, also comprises and leads quick-fried cable 5, detonator 10 and explosive 11; Described explosive 11 is placed in blasting cartridge 1, and described detonator 10 is embedded in explosive 11; Described one end of leading quick-fried cable 5 is connected with detonator 10 through after cable passage 6.
From in above-mentioned analysis and Fig. 1, detonator 10 has been embedded in explosive 11 by the present invention, and the region of splendid attire explosive 11 has effective sealing, causes the impact on detonator 10 and explosive 11 after therefore can effectively avoiding water permeation; Its effective fragmentation rate can be improved.
In addition, the difference of the explosive charge of more filling, can arrange detonator 10 along blasting cartridge 1 axial stratification, and can be provided with at least one detonator 10 in every layer; As shown in fig. 1, be both divided into two-layer, every layer is provided with two detonators 10.
In addition, because the present invention is applicable to the depth of water situation of the degree of depth more than 250m, therefore in order to improve the lowering velocity of blaster, make blaster can transfer to explosion desired location fast and accurately, be provided with balance weight body 12 further, and described balance weight body 12 be filled in the blasting cartridge 1 of bottom.Preferably blanc fixe can be adopted as balance weight body 12.
To sum up, Blasting in deep water device in hole of the present invention, its structure is simple, and low cost of manufacture, good sealing effect, can realize effective sealing to blaster under deep water conditions, guarantees the effective fragmentation of blaster energy.And blaster can be shortened transfer required time, reduce the possibility of water permeation blaster inside.Adopt the present invention in hole, during Blasting in deep water, can ensure that blasting cartridge 1 can bear more than 300m water column pressure; Blaster bulk strength is higher, and water column pressure can be avoided the extruding situation of explosive and detonator; And blaster good seal, do not seep water; Ensure effective fragmentation effect and the safety blasting of blaster.Present invention achieves 300m underwater demolition in boring, sleeve pipe follow-up can reach 320m; Increase the sleeve pipe follow-up degree of depth, extend water power hydraulic engineering probing supper-deep overburdened layer drilling depth, current depth capacity reaches 560m.Set up the hydroelectric project boring casing follow-up degree of depth and cover layer drilling depth two mark posts.
Claims (10)
1. Blasting in deep water device in hole, comprise the blasting cartridge (1) for splendid attire explosive, the bottom shutoff sealing of blasting cartridge (1), its top is provided with top cover labyrinth (2), it is characterized in that: described top cover labyrinth (2) and blasting cartridge (1) are sealed and matched, and are provided with the perforation one (21) run through in the axis of top cover labyrinth (2); Also comprise plug (4), the upper end of top cover labyrinth (2) is provided with plug installation step (22), plug (4) is provided with and one (21) coaxial perforation two (41) of boring a hole, described perforation two (41) runs through plug (4); Described perforation one (21) and perforation two (41) jointly forms confession and lead the cable passage (6) that quick-fried cable (5) passes; Be provided with between the lower surface of plug (4) and plug installation step (22) can be enclosed within lead quick-fried cable (5) upper and with the elastic seal ring (7) of leading quick-fried cable (5) and being sealed and matched.
2. Blasting in deep water device in hole as claimed in claim 1, is characterized in that: leading quick-fried cable (5) with cable passage (6) is non-interference fit.
3. Blasting in deep water device in hole as claimed in claim 1, is characterized in that: perforation one (21) is arranged on the axial center of top cover labyrinth (2).
4. Blasting in deep water device in hole as claimed in claim 1, is characterized in that: plug (4) is threaded with top cover labyrinth (2) and coordinates.
5. Blasting in deep water device in hole as claimed in claim 1, is characterized in that: the bottom of blasting cartridge (1) is provided with the lower sealing cover (3) be sealed and matched with blasting cartridge (1); Top cover labyrinth (2) is threaded with blasting cartridge (1); Lower sealing cover (3) is threaded with blasting cartridge (1); Sealing ring (8) is respectively arranged with between top cover labyrinth (2) and blasting cartridge (1) and between lower sealing cover (3) and blasting cartridge (1).
6. Blasting in deep water device in hole as claimed in claim 1, is characterized in that: top cover labyrinth (2) is provided with lacing hole (9).
7. Blasting in deep water device in hole as claimed in claim 1, is characterized in that: the material of blasting cartridge (1) is polypropylene; Blasting cartridge (1) diameter is 70mm ~ 200mm, and length is 1000 ~ 2500mm, and wall thickness is 6 ~ 10mm.
8. Blasting in deep water device in the hole according to any one of claim 1 to 7, is characterized in that: also comprise and lead quick-fried cable (5), detonator (10) and explosive (11); Described explosive (11) is placed in blasting cartridge (1), and described detonator (10) is embedded in explosive (11); Described one end of leading quick-fried cable (5) is connected with detonator (10) afterwards through cable passage (6).
9. Blasting in deep water device in hole as claimed in claim 8, is characterized in that: described detonator (10) is arranged along blasting cartridge (1) axial stratification, is provided with at least one detonator (10) in every layer; Also comprise balance weight body (12), described balance weight body (12) is filled in the blasting cartridge (1) of bottom.
10. Blasting in deep water device in hole as claimed in claim 9, is characterized in that: described balance weight body (12) is blanc fixe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564080.8A CN105091670A (en) | 2015-09-07 | 2015-09-07 | Intra-hole deepwater blaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564080.8A CN105091670A (en) | 2015-09-07 | 2015-09-07 | Intra-hole deepwater blaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105091670A true CN105091670A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564080.8A Pending CN105091670A (en) | 2015-09-07 | 2015-09-07 | Intra-hole deepwater blaster |
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| Country | Link |
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| CN (1) | CN105091670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108871114A (en) * | 2018-05-20 | 2018-11-23 | 中交公局第四工程有限公司 | A kind of bench blasting air-spacer |
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2015
- 2015-09-07 CN CN201510564080.8A patent/CN105091670A/en active Pending
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| CN2769839Y (en) * | 2005-03-14 | 2006-04-05 | 黄泰清 | Explosive charge case |
| CN201440601U (en) * | 2008-12-26 | 2010-04-21 | 中国船舶重工集团公司七五〇试验场 | Watertight connection structure of cable |
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Non-Patent Citations (1)
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Cited By (1)
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| CN108871114A (en) * | 2018-05-20 | 2018-11-23 | 中交公局第四工程有限公司 | A kind of bench blasting air-spacer |
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| PB01 | Publication | ||
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Application publication date: 20151125 |