CN203908426U - Circular jet cutter - Google Patents
Circular jet cutter Download PDFInfo
- Publication number
- CN203908426U CN203908426U CN201420272445.0U CN201420272445U CN203908426U CN 203908426 U CN203908426 U CN 203908426U CN 201420272445 U CN201420272445 U CN 201420272445U CN 203908426 U CN203908426 U CN 203908426U
- Authority
- CN
- China
- Prior art keywords
- metal
- jet cutter
- shell
- primacord
- emulsion
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims abstract description 56
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000000839 emulsion Substances 0.000 claims abstract description 28
- 239000000178 monomer Substances 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 239000002360 explosive Substances 0.000 claims abstract description 24
- 230000001186 cumulative effect Effects 0.000 claims description 32
- 238000004880 explosion Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 2
- 235000011837 pasties Nutrition 0.000 abstract 3
- 239000000945 filler Substances 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000012795 verification Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 238000005474 detonation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
Abstract
The utility model discloses a circular jet cutter comprising two jet cutting units which are in fixed top-bottom butt joint. The lower ends of two sides of a metal charge case of the upper jet cutting unit are fixed to the tops of metal holders on the corresponding sides; a housing encloses the metal charge case; the lower ends of two sides of the housing are fixed to the tops of the metal holders on the corresponding sides; a filler cavity for being filled with pasty emulsion charge is formed among the metal charge case, the metal holders and the housing; one end of a fuse extends into the pasty emulsion charge, and the other end of the fuse is exposed. The exposed ends of the fuses in the two jet cutting units are connected together. The pasty emulsion charge is far lower than monomer explosive charge in mechanical impact sensitivity and friction sensitivity, so that the two jet cutting units can be temporarily assembled on an exploding site, and assembly is safe, convenient and reliable; tests show that the circular jet cutter allows smooth cutting of steel pipes or concrete-filled steel pipes 5-15mm in diameter.
Description
Technical field
The utility model relates to a kind of annular jet cutter, and this annular jet cutter is specially adapted to the steel pipe of 5mm~15mm bore or includes concrete steel pipe Cutting Blasting.
Background technology
Cumulative Cutting Blasting utilizes Mohaupt effect to reach Metal Cutting object, it utilizes the hole of cartridge bag one end to make the energy of explosive detonation put together to improve the destruction of explosive part in hole direction, that is: after explosive charge, the detonation product of HTHP is along the rapid scattering of explosive cavity surface normal direction, due to the impact in hole, detonation product forms one high speed and high pressure jet to axis Collision coagulation.In the time that cavity surface is installed metal liner, near metal cavity liner inwall can be extruded one towards explosive is bottom, high-speed motion, high-temperature molten is moulded shape sheet metal particle jet on symmetrical plane, when metal jet sheet and cut metal occur to interact, surface dielectric is melted and cuts under HTHP effect.Cumulative Cutting Blasting relies on this sheet " energy-collecting knife " just, realizes the cutting to metal material.So Explosive Cutting Technique has the advantages such as efficient, reliable, there is the superiority that common cutting method can not be compared.
Mid supported steel tube concrete arch bridge is the arch bridge that a kind of bridge deck is arranged on the steel-concrete combined structure at spanning major bearing structures (as arch rib) middle part, conventionally by fill concrete in the steel pipe of arch rib.Because the radial constraint of steel pipe limits the concrete expansion of pressurized, make concrete in three dimension stress state, thereby can significantly improve concrete compression strength, therefore cutting includes the corresponding increase of difficulty of concrete steel pipe.
Simultaneously, at present in document, the cumulative cartridge bag of the cumulative Cutting Blasting device (hereinafter referred to as jet cutter) that adopts is all employing high explosive (as TNT, hexogen, pacify very much etc.), because the friction impact sensitivity of high explosive is too high, intrinsic safety degree is not high, user can not be at explosion making in site jet cutter, can only in factory, machine, so just greatly limit the use of jet cutter in civil blast field.Emulsion is the water resistant commercial explosive that uses the water-in-oil latex type prepared of emulsifying technology, because water content in paste emulsion explosive component is conventionally more than 9%, so the mechanical impacting sensitivity of emulsion and friction susceptibility are all well below simple substance high explosive, very safe in processing and use procedure at the scene.Meanwhile, due to raw material wide material sources, processing cost is low, uses the widest emulsion kind so emulsion becomes current civil blast field.In emulsion Water-In-Oil structure, reached the combination of quasi-molecule between fuel agent and oxidant, mixability is high, is conducive to completing of detonation reaction, so emulsion possesses the feature of high explosion velocity, emulsion also possesses the feature of high density and high detonation pressure simultaneously.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of annular jet cutter that can temporarily assemble at explosion scene, and can utilize this cutter to carry out pipe cutting or include concrete steel pipe.
The technical solution of the utility model is as follows: a kind of annular jet cutter, it is characterized in that: this annular jet cutter is docked and fixedly forms up and down by two identical cumulative cutting monomers (D) of structure, a cumulative cutting monomer (D) comprises metal liner (1), shell (3) and primacord (5) above, wherein the cross section of metal liner (1) is for falling " V " character form structure, and the lower end of these metal liner both sides is fixed with metal holder (2) end face of respective side respectively; Described shell (3) is a watt shape structure, and this jacket is in described metal liner (1) outside, and metal holder (2) end face of the lower end of shell (3) both sides and respective side is fixed; Between described metal liner (1), metal holder (2) and shell (3), form the drug-filling cavity of a both ends open, in this drug-filling cavity, be filled with the emulsion (4) of paste, and the opening at drug-filling cavity two ends is all sealed; One end of described primacord (5) reaches in emulsion (4), and the other end of this primacord is bared end, and primacord (5) bared end in two cumulatives cutting monomers (D) joins.
Because water content in the emulsion component of paste is conventionally more than 9%, so the mechanical impacting sensitivity of emulsion and friction susceptibility are all well below simple substance high explosive, very safe in processing and use procedure at the scene, so first at on-the-spot two the cumulative cutting monomers of assembly of explosion (D), then these two cumulative cutting monomers (D) are located on the outer wall of steel pipe, and by fixing two cumulative cutting monomers (D) docking, connect again primacord (5) bared end in two cumulative cutting monomers (D), and primacord (5) and detonator are joined.When use, cause detonator.By verification experimental verification, the utility model can reach smoothly pipe cutting or include the object of concrete steel pipe.
Adopt above technical scheme, due to the emulsion of the utility model employing paste, its mechanical impacting sensitivity and friction susceptibility are all well below simple substance high explosive, so just can be at two cumulative cutting monomers of the on-the-spot interim assembly of explosion, assembling safety, convenient, reliably, after assembling, again two cumulative cutting monomers are placed on to steel pipe or include concrete steel pipe outside, and docking is fixing, by verification experimental verification the utility model pipe cutting or include concrete steel pipe smoothly, can not be at explosion Assembling and can not pipe cutting or include the defect of concrete steel pipe thereby overcome well traditional jet cutter.
As preferably, the cone angle of described metal liner (1) is 85 °~95 °, and its wall thickness is 1.5mm~2.5mm; Described metal holder (2) is cube structure, and the length of side of this metal holder is 10mm~15mm.
Adopt above structural design, be not only convenient to two cumulatives cutting monomers (D) docking fixing, and the cone angle of metal liner (1) and Thickness Design can be improved demolition effect effectively.
In this case, the explosive density of described emulsion (4) is greater than 1.05g/cm
3, its explosion velocity of explosive is greater than 4800m/s, and its explosive brisance is for being greater than 18cm, and the linear charging density of emulsion (3) is 1.0kg/m~2.5kg/m.Show through result of the test, described emulsion (4) adopts after above parameter, and this CUMULATIVE BLASTING device can effectively be realized 5mm~15mm bore steel pipe or include the explosion of concrete steel pipe.
For the ease of drawing materials and reducing costs, the manufactured materials of described metal liner (1) is selected iron sheet or angle steel, described shell (3) is processed by pvc pipe, PPR pipe or rubber tyre, and described primacord (5) adopts water proof type plastic detonating cord, so just can realize waterproof.
In order to improve demolition effect, the summit of described primacord (5) and metal liner (1) is on same straight line, and the inwall of close described shell (3).
For the ease of being fixedly connected with, metal holder (2) and shell (3) in each described cumulative cutting monomer (D) are fixed together by the tightrope around outside, and are also fixed together by the tightrope around outside after two cumulative cutting monomers (D) docking.
Beneficial effect: the utility model adopts the emulsion of paste, its mechanical impacting sensitivity and friction susceptibility are all well below simple substance high explosive, so just can be at two cumulative cutting monomers of the on-the-spot interim assembly of explosion, assembling safety, convenient, reliably, after assembling, again two cumulative cutting monomers are placed on to steel pipe or include concrete steel pipe outside, and docking is fixing, can cut smoothly 5-15mm bore steel pipe or include concrete steel pipe by verification experimental verification the utility model, can not be at explosion Assembling and can not pipe cutting or include the defect of concrete steel pipe thereby overcome well traditional jet cutter.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of a cumulative cutting monomer D above in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, 2; a kind of annular jet cutter; this annular jet cutter is docked fixedly and forms up and down by two identical cumulative cutting monomer D of structure; certain these two cumulatives cutting monomer D adopt other relative position also within protection of the present utility model; as two cumulative cutting monomer D, left and right docking fixedly forms, and when use, these two cumulative cutting monomer D wrap in the outside of steel pipe.In addition, two above-mentioned cumulative cutting monomer D docking is also fixed together by the tightrope around outside.
A cumulative cutting monomer D comprises metal liner 1, shell 3 and primacord 5 above, and wherein the cross section of metal liner 1 is for falling " V " character form structure, and the lower end of these metal liner 1 both sides is welded and fixed with metal holder 2 end faces of respective side respectively.Above-mentioned metal holder 2 is cube structure, and the length of side of this metal holder 2 is 10mm~15mm, and the material of metal holder 2 can be selected iron, steel etc.
Described shell 3 is a watt shape structure, and this shell 3 is processed by pvc pipe, PPR pipe or rubber tyre.Above-mentioned shell 3 covers on metal liner 1 outside, and metal holder 2 end faces of the lower end of shell 3 both sides and respective side fix, and its concrete fixed form adopts tightrope, and this tightrope is around the outside of shell 3, and metal holder 2 end faces of its two ends and respective side are fixed.Between described metal liner 1, metal holder 2 and shell 3, form the drug-filling cavity of a both ends open, in this drug-filling cavity, be filled with the emulsion 4 of paste, and the opening at drug-filling cavity two ends is all sealed by adhesive plaster.The explosive density of described emulsion 4 is greater than 1.05g/cm
3, its explosion velocity of explosive is greater than 4800m/s, and its explosive brisance is for being greater than 18cm, and the linear charging density of emulsion 3 is 1.0kg/m~2.5kg/m.
Can find out from Fig. 1,2, the cone angle of described metal liner 1 is 85 °~95 °, and the wall thickness of this metal liner 1 is 1.5mm~2.5mm, and the manufactured materials of metal liner 1 is selected iron sheet or angle steel.Described primacord 5 adopts water proof type plastic detonating cord, and one end of this primacord 5 reaches in emulsion 4, and the other end of primacord 5 is bared end, and primacord 5 bared ends in two cumulatives cutting monomer D join, and this joint connects detonator again.The summit of described primacord 5 and metal liner 1 is on same straight line, and the inwall of close described shell 3.
The foregoing is only preferred embodiment of the present utility model; not taking the utility model as restriction; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. an annular jet cutter, it is characterized in that: this annular jet cutter is docked and fixedly forms up and down by two identical cumulative cutting monomers (D) of structure, a cumulative cutting monomer (D) comprises metal liner (1), shell (3) and primacord (5) above, wherein the cross section of metal liner (1) is for falling " V " character form structure, and the lower end of these metal liner both sides is fixed with metal holder (2) end face of respective side respectively; Described shell (3) is a watt shape structure, and this jacket is in described metal liner (1) outside, and metal holder (2) end face of the lower end of shell (3) both sides and respective side is fixed; Between described metal liner (1), metal holder (2) and shell (3), form the drug-filling cavity of a both ends open, in this drug-filling cavity, be filled with the emulsion (4) of paste, and the opening at drug-filling cavity two ends is all sealed; One end of described primacord (5) reaches in emulsion (4), and the other end of this primacord is bared end, and primacord (5) bared end in two cumulatives cutting monomers (D) joins.
2. annular jet cutter according to claim 1, is characterized in that: the cone angle of described metal liner (1) is 85 °~95 °, and its wall thickness is 1.5mm~2.5mm; Described metal holder (2) is cube structure, and the length of side of this metal holder is 10mm~15mm.
3. annular jet cutter according to claim 1, is characterized in that: the explosive density of described emulsion (4) is greater than 1.05g/cm
3, its explosion velocity of explosive is greater than 4800m/s, and its explosive brisance is for being greater than 18cm, and the linear charging density of emulsion (3) is 1.0kg/m~2.5kg/m.
4. annular jet cutter according to claim 1 and 2, it is characterized in that: the manufactured materials of described metal liner (1) is selected iron sheet or angle steel, described shell (3) is processed by pvc pipe, PPR pipe or rubber tyre, and described primacord (5) adopts water proof type plastic detonating cord.
5. annular jet cutter according to claim 4, is characterized in that: the summit of described primacord (5) and metal liner (1) is on same straight line, and the inwall of close described shell (3).
6. annular jet cutter according to claim 1, it is characterized in that: metal holder (2) and shell (3) in each described cumulative cutting monomer (D) are fixed together by the tightrope around outside, and be also fixed together by the tightrope around outside after two cumulative cutting monomers (D) docking.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420272445.0U CN203908426U (en) | 2014-05-26 | 2014-05-26 | Circular jet cutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420272445.0U CN203908426U (en) | 2014-05-26 | 2014-05-26 | Circular jet cutter |
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CN203908426U true CN203908426U (en) | 2014-10-29 |
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Family Applications (1)
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CN201420272445.0U Expired - Lifetime CN203908426U (en) | 2014-05-26 | 2014-05-26 | Circular jet cutter |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105928426A (en) * | 2016-06-23 | 2016-09-07 | 中国人民解放军理工大学 | Horseshoe-shaped energy-concentrating cutter |
CN106091853A (en) * | 2016-06-20 | 2016-11-09 | 何广沂 | Tunnel piercing cumulative smooth Hydraulic Blasting device and blasting method |
CN107607006A (en) * | 2017-09-13 | 2018-01-19 | 中国水利水电科学研究院 | Method and device based on flexible linear-shaped charge cutting large diameter bolt |
CN109084642A (en) * | 2018-05-24 | 2018-12-25 | 中钢集团武汉安全环保研究院有限公司 | A method of Concentrated charge is prepared using bulk emulsifying explosive |
CN109211037A (en) * | 2018-09-11 | 2019-01-15 | 中国矿业大学 | A kind of underwater explosion cutting component and underwater explosion cutting method |
CN110906821A (en) * | 2019-12-12 | 2020-03-24 | 惠州市兴鲁节能科技有限公司 | Deep hole blasting loaded constitution |
CN112238177A (en) * | 2020-10-16 | 2021-01-19 | 安徽理工大学 | Energy-gathered cutting device with variable explosion height |
CN112240730A (en) * | 2020-09-27 | 2021-01-19 | 北京理工大学 | Gather ability charge structure of supplementary planet ball mineral sample |
CN113059049A (en) * | 2021-03-29 | 2021-07-02 | 安徽理工大学 | Novel annular energy-gathering cutter |
CN114558930A (en) * | 2022-04-11 | 2022-05-31 | 安徽理工大学 | Energy-gathered cutting device with variable explosion height |
CN114993124A (en) * | 2022-06-08 | 2022-09-02 | 安徽理工大学 | Efficient annular energy-gathering cutter |
-
2014
- 2014-05-26 CN CN201420272445.0U patent/CN203908426U/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106091853A (en) * | 2016-06-20 | 2016-11-09 | 何广沂 | Tunnel piercing cumulative smooth Hydraulic Blasting device and blasting method |
CN105928426A (en) * | 2016-06-23 | 2016-09-07 | 中国人民解放军理工大学 | Horseshoe-shaped energy-concentrating cutter |
CN107607006A (en) * | 2017-09-13 | 2018-01-19 | 中国水利水电科学研究院 | Method and device based on flexible linear-shaped charge cutting large diameter bolt |
CN107607006B (en) * | 2017-09-13 | 2019-09-17 | 中国水利水电科学研究院 | Method and device based on flexible linear-shaped charge cutting large diameter bolt |
CN109084642B (en) * | 2018-05-24 | 2023-05-30 | 中钢集团武汉安全环保研究院有限公司 | Method for preparing shaped charge by using bulk emulsion explosive |
CN109084642A (en) * | 2018-05-24 | 2018-12-25 | 中钢集团武汉安全环保研究院有限公司 | A method of Concentrated charge is prepared using bulk emulsifying explosive |
CN109211037A (en) * | 2018-09-11 | 2019-01-15 | 中国矿业大学 | A kind of underwater explosion cutting component and underwater explosion cutting method |
CN110906821A (en) * | 2019-12-12 | 2020-03-24 | 惠州市兴鲁节能科技有限公司 | Deep hole blasting loaded constitution |
CN112240730A (en) * | 2020-09-27 | 2021-01-19 | 北京理工大学 | Gather ability charge structure of supplementary planet ball mineral sample |
CN112238177A (en) * | 2020-10-16 | 2021-01-19 | 安徽理工大学 | Energy-gathered cutting device with variable explosion height |
CN113059049A (en) * | 2021-03-29 | 2021-07-02 | 安徽理工大学 | Novel annular energy-gathering cutter |
CN114558930A (en) * | 2022-04-11 | 2022-05-31 | 安徽理工大学 | Energy-gathered cutting device with variable explosion height |
CN114993124A (en) * | 2022-06-08 | 2022-09-02 | 安徽理工大学 | Efficient annular energy-gathering cutter |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20141029 |
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CX01 | Expiry of patent term |