CN103267450B - Waterproof high-pressure-resistant deep well blasting cartridge - Google Patents
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- CN103267450B CN103267450B CN201310191116.3A CN201310191116A CN103267450B CN 103267450 B CN103267450 B CN 103267450B CN 201310191116 A CN201310191116 A CN 201310191116A CN 103267450 B CN103267450 B CN 103267450B
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- 238000005422 blasting Methods 0.000 title abstract description 8
- 239000002360 explosive Substances 0.000 claims abstract description 108
- 238000007789 sealing Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000003292 glue Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 13
- 235000020004 porter Nutrition 0.000 claims description 25
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000003466 welding Methods 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 description 19
- 238000013461 design Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 8
- 239000000084 colloidal system Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 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
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 239000009853 xinfeng Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 241001570513 Potamogeton diversifolius Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The invention relates to a waterproof high-pressure-resistant deep well blasting cartridge comprising a cartridge body, a cartridge cover installed on the cartridge body, explosive filled in the cartridge body and a pressure-resistant electric detonator arranged in the explosive, a leading-out hole is formed in the cartridge cover, a leg wire of the pressure-resistant electric detonator is led out from the leading-out hole, sealing glue sealing gap between the leading-out hole and the leg wire is arranged on the cartridge cover, and the sealing glue has a self-locking function in a water pressure environment. The bottom of the cartridge body is welded with material same to the material of the cartridge body, and the waterproof high-pressure-resistant deep well blasting cartridge guarantees that fracture or holes cannot happen to welding joints. According to the waterproof high-pressure-resistant deep well blasting cartridge, due to the fact that the gap between the leading-out hole and the leg wire is sealed through the sealing glue having the self-locking function in the water pressure environment, under the effects of environment water pressure and on the basis of certain deformability of the sealing glue, the larger the water pressure is, the tighter contact between the sealing glue and the leg wire and contact between the sealing glue and the cartridge cover are, and the phenomena that the fracture is caused by deformation of the sealing glue, and water is seeped into the explosive along the leg wire and the leading-out hole are avoided. The waterproof high-pressure-resistant deep well blasting cartridge can be applied to the field of engineering blasting.
Description
Technical field
The present invention relates to engineering explosion field, particularly the high pressure resistant deep-well explosive cartridge of a kind of waterproof.
Background technology
Underground hot spring resource, mineral resource are more and more rare, and water yield promotes to need blast in well to promote.Consider that blast working environment is special, explosion position is positioned at hundreds of rice under water and even goes up km, explosion narrow space, the aperture of well is generally 75mm and following, and there are tens even up to a hundred the atmospheric environmental pressures produced by water pressure, all acquire a certain degree of difficulty even if can realize successfully detonating, be more difficult to the actual effect after differentiating explosion scientifically and rationally.
, in oil exploitation industry, there is more technique for applying for the narrow space explosion under hyperenvironment pressure condition both at home and abroad, wherein one and petroleum perforation charge technology.The aperture of oil well is generally greater than 200mm, and be more than 2 ~ 3 times of the well diameters such as hot spring well, relatively large space provides possibility to perforating technology; Oil well investment is huge in addition, the construction period is long, and the oil of exploitation is worth relatively high, so insensitive to blasting cost, what general employing was complicated has gun system.But have gun system apparatus expensive, blast working cost is large, the cycle is long, be difficult in common groundwater resources exploitation engineering accept.
That considers that oil exploitation industry adopts has gun system and petroleum perforation charge technology, in groundwater resources exploitation engineering, directly there is following problem in reference and application: the aperture of (1) oil well is generally greater than 200mm, be more than 2 ~ 3 times of the well diameters such as hot spring, relatively large space provides possibility to jet perforating technology; And the wells such as hot spring, space is narrow especially, adopts jet perforating technology greatly will reduce effective charge amount, is unfavorable for the abundant expansion of crack to surrounding; (2) oil well investment is huge, the construction period is long, and the oil of exploitation is worth relatively high, insensitive to blasting cost.
Therefore be badly in need of the high pressure resistant deep-well explosive cartridge of a kind of waterproof convenient and swift, with low cost of design, promote the exploitation of groundwater resources.
Summary of the invention
In order to overcome above-mentioned technical problem, the object of the present invention is to provide waterproof and anti-pressure ability can meet the high pressure resistant deep-well explosive cartridge of waterproof of deep-well explosion.
The technical solution adopted in the present invention is:
The high pressure resistant deep-well explosive cartridge of a kind of waterproof, comprise stack shell, the cover be arranged on stack shell, be seated in the explosive in stack shell and be arranged on the withstand voltage electric cap in explosive, described cover is provided with fairlead, the payment to a porter of described withstand voltage electric cap is drawn from fairlead, described cover is provided with the sealing in gap between sealing fairlead and payment to a porter, and described sealing is with auto-lock function under hydraulic pressure environment.With the material identical with stack shell welding bottom stack shell, weld seam ensures not occur crack or hole.
As the further improvement of technique scheme, described sealing is epoxide-resin glue.The requirement of sealing is comparatively large for connecting rear intensity, and the distortion of colloid itself is little, prevents external environment condition water pressure from being clamp-oned in explosive cartridge by flexible colloid bit by bit by micropore, thus loses sealing function.And epoxide-resin glue is flexible and rigidity is moderate, colloid self has certain deformability, and under the effect of environment hydraulic pressure, pressure is larger, and the contact between epoxide-resin glue and payment to a porter and between cover is tightr, avoids owing to being out of shape the cracking caused.
As the further improvement of technique scheme, described payment to a porter comprises is close to the linkage section of cover end face after fairlead is drawn, described sealing comprise cover on linkage section and with linkage section, the close-connected part of cover end face.In practical application, after payment to a porter will be close to explosive cartridge cover, gluing connects, increase the contact length of sealing and payment to a porter, simultaneously along with ambient water pressure increases, connection between sealing and payment to a porter and the connection between sealing and cover are pressed tighter and tighter, namely form auto-lock function, anti-sealing permeates from the gap between sealing and payment to a porter, cover.
As the further improvement of technique scheme, described cover and stack shell are threaded connection.
As the further improvement of technique scheme, described cover is connected by angular thread with stack shell, and the screw thread that its object is to angular thread is closeer, is conducive to reducing the gap between internal and external threads, makes sealing property better.
As the further improvement of technique scheme, sealed by flexible water stop between described cover and the connecting thread of stack shell.
As the further improvement of technique scheme, the jointing end face periphery of described cover and stack shell is wound with adhesive waterproof tape.Under environmental pressure effect, pressure is larger, adhesive waterproof tape and the connection between stack shell and cover tightr, namely form auto-lock function, anti-sealing between adhesive waterproof tape and explosive cartridge gap infiltration.
As the further improvement of technique scheme, the material of described stack shell and cover is alloy or alloy aluminium.
As the further improvement of technique scheme, described explosive is the fusion casting type of TNT or TNT and Tai'an powder type explosive.
As the further improvement of technique scheme, described cover is provided with for the series connection clasp by high pressure resistant for multiple waterproof deep-well explosive cartridge serial connection.
The invention has the beneficial effects as follows: explosive cartridge of the present invention is by sealing the space between fairlead and payment to a porter with the sealing with auto-lock function under hydraulic pressure environment, under the effect of environment hydraulic pressure, rely on the certain deformability of self, hydraulic pressure is larger, contact between sealing and payment to a porter, between sealing and cover is tightr, avoid sealing to be out of shape the cracking caused, cause water to infiltrate in explosive along payment to a porter and fairlead.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the present invention is further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of cover of the present invention.
Detailed description of the invention
Key of the present invention is to design the high pressure resistant deep-well explosive cartridge of a kind of waterproof, is that crushed zone or non-closed crack place carry out explosion, the barrier between conducting water head site and hot spring well in well, thus the water yield increasing various well.
As depicted in figs. 1 and 2, this explosive cartridge comprises stack shell 1, the cover 2 be arranged on stack shell 1, the withstand voltage electric cap 4 that is seated in the explosive 3 in stack shell 1 and is arranged in explosive 3, cover 2 is provided with fairlead 5, the payment to a porter 9 of withstand voltage electric cap 4 is drawn from fairlead 5, cover 2 is provided with the sealing 6 in gap between sealing fairlead 5 and payment to a porter 9, and sealing 6 is with auto-lock function under hydraulic pressure environment.
Preferably, sealing 6 is epoxide-resin glue.
Preferably, payment to a porter 9 comprises is close to the linkage section of cover 2 end face after fairlead 5 is drawn, sealing 6 comprise cover on linkage section and with linkage section, the close-connected part of cover 2 end face.
Preferably, cover 2 and stack shell 1 are threaded connection, and stack shell 1 is external screw thread, and on cover 2 is internal thread 10.
Preferably, cover 2 is connected by angular thread with stack shell 1.
Preferably, sealed by flexible water stop between the connecting thread of cover 2 and stack shell 1.
Preferably, cover 2 is wound with adhesive waterproof tape 7 with the jointing end face periphery of stack shell 1.
Preferably, the material of stack shell 1 and cover 2 is alloy or alloy aluminium.
Preferably, explosive 3 is the fusion casting type of the powder type explosive such as TNT or TNT and Tai'an.
Preferably, cover 2 is provided with for the series connection clasp 8 by high pressure resistant for multiple waterproof deep-well explosive cartridge serial connection.
It is below the design process of the explosive cartridge in the present embodiment.
(1) standardized explosive cartridge specification and profile design
Because charge space is narrow in certain engineering, hot spring well inwall internal diameter is only 75mm and following, and charge explosion position is dark, and hundreds of rice even go up km under water, and explosive manufacturability decision in place can only adopt Uncoincided charge.In addition, consider the particularity of engineering, the explosive shape of column type can only be adopted; Referential engineering experience is few, and onepull explosive charge is determined to acquire a certain degree of difficulty, therefore during Preliminary design, carries out standardized designs (according to Shaft wall design explosive diameter, length) to explosive:
During the design of 1. column type explosive shape, the diameter of cylindrical explosive is large as far as possible, ensures powder charge intensity, i.e. linear meter(lin.m.) explosive payload, improves plasting damage effect;
2. in place in order to ensure that explosive can sink smoothly, need to design the diameter of explosive and length, should not be too large, otherwise explosive cartridge difficulty in place;
3. the determination of onepull dose, theory analysis and numerical simulation calculation often as a reference, can only consider the complexity of actual geological condition, also will according to actual demolition effect adjustment dose, so be designed to the column type medicine block of standard, multiple explosive cartridge series shot-firing if desired.
Amid all these factors, determine that the diameter of column type explosive block should be 0.85 ~ 0.9 times of the hot spring borehole wall, the length of standard medicine block is long no more than 50cm; According to the diameter of the adjustment such as degree of packing, construction technology experiment standard dynamite block and height in practice of construction, but actual quality of explosive keeps 2kg constant.Can according to actual demolition effect in work progress, consider the series shot-firing of same position repeatedly explosion and multiple standard dynamite block.
(2) explosive cartridge Intensity Design
In order to resist the environmental pressure of superelevation, the initiating equipment such as detonator and explosive must to be put in explosive cartridge, and indeformable under stress, intensity redundancy is little be conducive to detonating after fully discharge explosion energy.Explosive cartridge external diameter should be 0.85 ~ 0.9 times of borehole wall ID, and powder charge intensity is comparatively large, and linear meter(lin.m.) explosive payload is comparatively large, and brisance is guaranteed, and explosive sinks convenience in place.Explosive cartridge Parameter design and computation is as follows:
1. barrel lateral pressure drag calculates
Cylinder shell sidewall system thin wall cylindrical shell structure, it must under ambient water pressure effect, and shell structure can not buckling deformation.Consider that the feature of this engineering is compared with petroleum industry, length of shot more shallow (being generally less than 2000m), environment temperature lower (being less than 100 DEG C), so alloy aluminum material or alloy steel products can be selected as explosive cartridge case material.In addition, because aperture is less, the explosive payload of explosive cartridge is less, so the case material of explosive cartridge should not be too thick, intensity should not be too large, the too large fracturing effect affecting periphery rock of explosive cartridge housing surplus strength.This explosive cartridge casing rigidity is adjusted and is designed, the maximum anti-side calculation of pressure of explosive cartridge:
P
m=(WYσu
1f/ψn′S
ne
1K
n)
(1.1-γ)
In formula:
P
mmaximum pressure in-explosive cartridge;
W-high explosive medicine explosive payload;
Y-high explosive shape facility amount;
σ-explosive cartridge material static yield limit, MPa;
U
1-relative combustion surface area, dm
2;
F-impetus, KJ/Kg;
ψ-correction factor;
Holes number during n '-maximum pressure;
S
n-ventilation aperture area, dm
2;
E
1-high explosive arc is thick, dm;
K
n-high explosive combustion gas K value;
γ-high explosive pressure index.
Explosive cartridge wall thickness calculate:
In formula:
R
1-explosive cartridge external diameter, cm;
R
2-explosive cartridge internal diameter, cm;
[σ]-allowable stress, MPa.
Explosive cartridge THICKNESS CALCULATION:
δ=r
1-r
2
The internal-and external diameter of the strength of materials of design, elastic modelling quantity, barrel and wall thickness being substituted into above formula, outer casing thickness parameter can be obtained through calculating.
2. pressure against the ends resistance calculates
For explosive cartridge mouth diameters 50mm, environmental pressure 5MPa, then periphery water is to the pressure of explosive cartridge oral area joint filling material:
Through above-mentioned calculating, explosive cartridge closure member must can bear the drag being greater than 9812.5 newton, and guarantee explosive cartridge joint filling material is not promoted to enter explosive cartridge inside by water pressure and causes explosive cartridge deformation failure.
Explosive cartridge local stability calculates (explosive cartridge sidewall is unyielding):
F≤2πr×δ×E
c=3.14×0.05×δ×2.06×10
5×10
6；
Then,
(for secondary steel, E
c=2.06 × 10
5mPa);
(for aluminium alloy, E
c=7.0 × 10
4mPa).
Explosive cartridge sidewall monolithic stability calculates (explosive cartridge sidewall is complete buckling unstability not):
The radius of gyration, i=r+ δ/2 ≈ 2.5cm, length 50cm and 25cm, then slenderness ratio: λ
1=l
1/ i=50/2.5=20≤[λ]; λ
2=l
21/ i=25/25=10≤[λ];
What [λ] was rod member allows slenderness ratio (aluminium alloy or steel alloy).Calculating the explosive cartridge stack shell thickness of design according to above formula, can not there is complete buckling unstability in its sidewall.
Through above-mentioned computational analysis, the aluminium pipe market considering specific standard is difficult to buy, so adopt steel tube processing medicine outer cover, and also large compared with the wire-bound dose of aluminium cover, brisance is large.The yield strength that when considering to calculate, the intensity of steel is chosen, non-ultimate strength, all have certain intensity redundancy; The error problem of machining, this is the adverse effect factor of intensity aspect; Intensity redundancy and machining error, both cancel out each other in impact.
Consider the specification restriction of seamless steel pipe on market, and machining accuracy restriction, in practice of construction process, explosive adopts fusion casting type, density 1.6g/cm
3, TNT and Tai'an, explosive cartridge wall thickness 1.2mm, internal diameter 63mm, in caliber, powder charge is about 50g/cm, each standard explosion tube length 45cm, the long 40cm of powder charge, explosive 2kg.In the process of blast working, 2 ~ 4 explosive cartridge series shot-firings.
(3) explosive cartridge sealing property design (deriving containing wire)
Suppose under the environmental pressure of 5Mpa, the connecting interface of steel explosive cartridge has welding junction, hickey and detonator payment to a porter interface, and its analysis on sealing is as follows:
Welding junction: comprise the stack shell of explosive cartridge and welding of base plate, it is by checking that welding quality is guaranteed to meet sealing requirements;
Hickey: the stack shell of explosive cartridge and the connection of block, close angular thread is adopted to design, under reducing ambient water pressure effect, water thread lapping gap is permeated, in addition after the external screw thread of stack shell end is wound around flexible water stop outward at cover of screwing on, after both connections are fastening, tightly screw connection point is enwinded again with mackintosh, here mackintosh adopts electrical adhesive tape, so, under the environmental pressure of periphery, the peripheral electrical adhesive tape be wound around more and more tighter (i.e. " locking phenomenon "), firmly blocks the contact gaps such as thread pitch, prevents water permeation;
Detonator payment to a porter interface: tie up to pre-subdrilling fairlead in cover, draws payment to a porter, then seals.Fairlead sealing under elevated ambient pressures, general employing rubber cushion compacting sealing, its environmental pressure that can bear is comparatively large, but complex structure; Adopt different rubber seals, structure be simple, easy construction, but the environmental pressure born is limited, needs kind and the sealing technology of choose reasonable glue.
Consider detonator payment to a porter hole little (3mm diameter), explosive cartridge size small deformation is little, adopt epoxide-resin glue sealing, can meet the demands, because:
1. can not be common flexible glue, prevent external environment condition water pressure from being clamp-oned in explosive cartridge bit by bit by micropore by flexible colloid, thus lose sealing function; After epoxide-resin glue connects, intensity is comparatively large, can not produce micropore;
2. epoxide-resin glue self has certain deformability, and under the effect of environment hydraulic pressure, pressure is larger, and the contact between different medium is tightr;
3. after payment to a porter laterally will be close to explosive cartridge cover, gluing connects, both the contact length of epoxide-resin glue and payment to a porter had been increased, simultaneously along with ambient water pressure increases, connection between epoxide-resin glue and payment to a porter and the connection between colloid and cover are pressed tighter and tighter, namely form auto-lock function, anti-sealing permeates from the gap between colloid and payment to a porter, cover.
In addition, owing to detonating environment under water under high pressure environment, the explosive cartridge therefore in embodiment all adopts electric network to detonate.
Example 1: the hot spring virgin forest holiday village hot spring well explosion of sea, the skies, Xinfeng improves water yield engineering.
Explosive cartridge in the present embodiment improves water yield engineering in the sea hot spring virgin forest holiday village hot spring well explosion of the skies, Xinfeng and succeeds that (explosion position is not positioned at thermal water wellhole-420 ~-550m not etc. in application, 400 ~ 500m below static level), designed explosive cartridge and safe and reliable without rifle initiation system, be total to explosion treatment 3 mouthfuls of hot spring wells, all achieve good effect.
Example 2: the hot spring virgin forest holiday village mineral spring well explosion of sea, the skies, Xinfeng improves traffic engineering.
Explosive cartridge in the present embodiment also improves traffic engineering in the sea hot spring virgin forest holiday village Mineral Water Well explosion of the skies, Xinfeng and succeeds that (explosion position is not positioned at mineral water wellhole-60 ~-120m not etc. in application, 50 ~ 100m below static level), again prove the explosive cartridge and safe and reliable without rifle initiation system designed, be total to explosion treatment 4 mouthfuls of Mineral Water Wells, also achieve good effect.
The above is the preferred embodiment of the present invention, and it does not form limiting the scope of the invention.
Claims (9)
1. the high pressure resistant deep-well explosive cartridge of waterproof, it is characterized in that: comprise stack shell (1), be arranged on the cover (2) on stack shell (1), the withstand voltage electric cap (4) being seated in the explosive (3) in stack shell (1) and being arranged in explosive (3), described cover (2) is provided with fairlead (5), the payment to a porter (9) of described withstand voltage electric cap (4) is drawn from fairlead (5), described cover (2) is provided with the sealing (6) in gap between sealing fairlead (5) and payment to a porter (9), described sealing (6) is with auto-lock function under hydraulic pressure environment, described payment to a porter (9) comprises the linkage section being close to cover (2) end face after fairlead (5) extraction, described sealing (6) comprise to cover on linkage section and and linkage section, the close-connected part of cover (2) end face.
2. the high pressure resistant deep-well explosive cartridge of waterproof according to claim 1, is characterized in that: described sealing (6) is epoxide-resin glue.
3. the high pressure resistant deep-well explosive cartridge of waterproof according to claim 1, is characterized in that: described cover (2) and stack shell (1) are threaded connection.
4. the high pressure resistant deep-well explosive cartridge of waterproof according to claim 3, is characterized in that: described cover (2) is connected by angular thread with stack shell (1).
5. the high pressure resistant deep-well explosive cartridge of the waterproof according to claim 3 or 4, is characterized in that: sealed by flexible water stop between the connecting thread of described cover (2) and stack shell (1).
6. the high pressure resistant deep-well explosive cartridge of the waterproof according to claim 1 or 3, is characterized in that: described cover (2) is wound with adhesive waterproof tape (7) with the jointing end face periphery of stack shell (1).
7. the high pressure resistant deep-well explosive cartridge of waterproof according to claim 1, is characterized in that: the material of described stack shell (1) and cover (2) is alloy.
8. the high pressure resistant deep-well explosive cartridge of waterproof according to claim 1, is characterized in that: the fusion casting type that described explosive (3) is TNT or TNT and Tai'an powder type explosive.
9. the high pressure resistant deep-well explosive cartridge of waterproof according to claim 1 or 7 or 8, is characterized in that: described cover (2) is provided with for the series connection clasp (8) by high pressure resistant for multiple waterproof deep-well explosive cartridge serial connection.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105091670A (en) * | 2015-09-07 | 2015-11-25 | 中国电建集团成都勘测设计研究院有限公司 | Intra-hole deepwater blaster |
| CN106643354B (en) * | 2016-11-08 | 2018-06-01 | 宏大爆破有限公司 | A kind of high temperature flame range safely and fast blast working apparatus and method |
| CN107014260B (en) * | 2017-04-28 | 2018-02-02 | 中国水电基础局有限公司 | A kind of high pressure resistant cumulative orientation bullet and its application method |
| CN108917508A (en) * | 2018-07-10 | 2018-11-30 | 中国人民解放军陆军工程大学 | Imderwater cutting device |
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| EP1870664A1 (en) * | 2007-05-21 | 2007-12-26 | Di Blasio Elio Fireworks | Safety plug for a firework and firework comprising such a safety plug |
| CN101978238A (en) * | 2008-03-26 | 2011-02-16 | 简-阿克·本特森 | Explosive cartridge filled with gunpowder |
| CN203286929U (en) * | 2013-05-21 | 2013-11-13 | 广东宏大爆破股份有限公司 | Waterproof high-pressure-resistant deep well blasting cartridge |
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|---|---|
| CN103267450A (en) | 2013-08-28 |
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Owner name: HONGDA MINING INDUSTRY CO., LTD. Free format text: FORMER OWNER: GUANGDONG HONGDA BLASTING CO., LTD. Effective date: 20150303 |
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Address after: 511300 28 Luang Da Road, Lianyi village, Zeng Jiang Street, Zengcheng, Guangzhou, Guangdong Patentee after: Hongda Blasting Engineering Group Co.,Ltd. Address before: 511300 28 Luang Da Road, Lianyi village, Zeng Jiang Street, Zengcheng, Guangzhou, Guangdong Patentee before: HONGDA BLASTING Co.,Ltd. |
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Address after: 511300 28 Luang Da Road, Lianyi village, Zeng Jiang Street, Zengcheng, Guangzhou, Guangdong Patentee after: HONGDA BLASTING Co.,Ltd. Address before: 510623 floor 20, North Tower, Jinbin Tengyue building, 49 Huaxia Road, Zhujiang New Town, Guangzhou, Guangdong Patentee before: HONGDA MINING INDUSTRY Co.,Ltd. |