CN103968719A - Integrated scattering type oriented explosion cylinder - Google Patents
Integrated scattering type oriented explosion cylinder Download PDFInfo
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- CN103968719A CN103968719A CN201410218608.1A CN201410218608A CN103968719A CN 103968719 A CN103968719 A CN 103968719A CN 201410218608 A CN201410218608 A CN 201410218608A CN 103968719 A CN103968719 A CN 103968719A
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Abstract
The invention relates to the field of ammunition manufacturing and engineering blasting. An integrated scattering type oriented explosion cylinder is composed of a cylinder body, an end cover and an ignition device, wherein a cavity of the cylinder body is filled with explosives, and the ignition device is led out of a hole in the end cover. Conical or semicircular pits which are formed in rows and in lines and distributed in a regular or irregular mode are formed in the outer circumferential face of the tubular cylinder body, wherein the central axes of the pits are perpendicular to the longitudinal axis of the tubular cylinder body, the distance, along the longitudinal axis of the cylinder body, between the central axes of every two adjacent pits ranges from 1 cm to 50 cm, and protrusions in the corresponding shapes are formed in the inner wall face of the cylinder body through the pits. The cone vertex angle of the conical pits ranges from 30 degrees to 160 degrees, the length of the generatrix of the conical pits ranges from 0.5 cm to 20 cm, and the diameter of the bottom face of the conical pits is 2 to 50 times of the thickness of the wall of the cylinder body. The radius of the semicircular pits is 2 to 50 times of the thickness of the wall of the cylinder body. After the explosives are blasted, high-temperature and high-pressure detonation waves act on the pits, and high-speed jet flow is formed through extrusion drive. The integrated scattering type oriented explosion cylinder is simple in manufacturing process, low in cost and capable of being applied to the tunnel cutting blasting occasion, the presplitting blasting occasion and other occasions.
Description
Technical field
The present invention relates to ammunition manufacture and engineering explosion technical field.
Background technology
Energy-gathering jetting cutter is that energy-gathering jetting technology is applied to cutting engineering field, drive material to form jet by explosive detonation, by the interior kinetic energy that can convert energy-gathering jetting to of explosive, utilize the high penetration property of energy-gathering jetting to cut off the object that traditional handicraft is inconvenient to excise.Jet cutter is widely used in industry-by-industry because its cost is low, simple to operate.In prior art, cumulative is put to jet and line fluidics is applied in underground engineering.For example, CN2244091 Y has proposed a kind of jet cutter for down-hole cutting, and it comprises cutting cylinder shell, ring-type cavity liner, explosive and detachable priming device.After explosive charge, energy, in ring-type cavity liner, produces the metal fluid of 360 ° of annular spray, and target is cut.But the version that it adopts is very complicated, and only have a cavity liner, action space is little, cannot adapt to heavy construction needs.In CN 102735121 A, provide a kind of hoop Blasting with Linear Cumulative Cutting Charge in Rock, comprise that the interior constraint of cylindrical shell has the linear cavity liner of multiple semicircle tubuloses, the breach of Types of Medicine vestlet all also contacts towards the internal face of shell, the middle explosive of loading, after explosive initiation, produce many energy-gathering jettings, for the digging operation of coal body or rock, on coal body or rock, form many Cracks.Be specially adapted to the medium-length hole presplit blasting in coal seam, can effectively reduce or eliminate coal-bed gas outburst hazard, prevent or reduce the generation of the great mine safety accidents such as gas explosion and fire incident.But its complex manufacturing technology, and use shaped charge material more.CN203349716 U has proposed a kind of multiaspect cumulative directional cutting device, comprise circular tube shaped cylindrical shell, powder charge, priming device, cylinder body outer wall vertically bilateral symmetry offers vee gutter, after detonating, can form two-way continuously-directional energy-gathering jetting, combine with photoface exploision and can realize the orientation control of cutter.But, only have bilateral structure, be not suitable for four-way perimeter blasting.
Summary of the invention
The object of the invention is to, propose a kind of integrated distributing directional explosion cylinder that multiple directions energy-gathering jetting is provided by cylindrical shell itself.It has, and explosive energy utilization rate is high, and manufacture craft is simple, has wide range of applications, with low cost, can form the feature of multidirectional jet, makes full use of cylindrical shell itself, does not need another medicine-feeding type cover.
Technical scheme of the present invention is as follows:
Integrated distributing directional explosion cylinder of the present invention, including overall diameter is 1cm-50cm, wall thickness is the tubular cylindrical shell of 1mm-15mm, end cap and apparatus to cause bursting, in the cavity of cylindrical tube, explosive is housed, cylindrical shell both ends are provided with the internal thread or the external screw thread that match with end cap, the apparatus to cause bursting being inserted in explosive is drawn out to outside cylindrical shell by the hole on one of them end cap, it is characterized in that, on the periphery of described tubular cylindrical shell, be provided with taper shape or the semicircular recess of regular distribution in column in a row or irregular alignment, pit axis is vertical with the longitudinal axis of tubular cylindrical shell, distance along the axis of two adjacent pit of cylindrical shell longitudinal axis is 1cm-50cm, described pit forms the projection as energy gathering cap of respective shapes on cylinder inboard wall face, in the time that pit is taper shape, its cone-apex angle is 30 °-160 °, the long 0.5cm-20cm of bus, and bottom surface diameter is 2-50 times of cylindrical shell wall thickness, in the time that pit is semicircle, its radius is 2-50 times of cylindrical shell wall thickness.
Integrated distributing directional explosion cylinder of the present invention, one end of described cylindrical shell arranges external screw thread, and the other end arranges internal thread, and two-part screw thread specification is identical, two or more cylindrical shells can be linked to be to an entirety and use.
Integrated distributing directional explosion cylinder of the present invention, described explosive is one or more composite explosives in the explosives such as emulsion, RDX, HMX, TNT, PETN; Described apparatus to cause bursting is Nonel detonator, electric cap etc.Cylindrical shell, the upper and lower end cap of described contrive equipment can be made up of metal material (as iron, copper, aluminium, tin, lead), nonmetallic materials (as plastics, curing materials, material with carbon element, fibrous material), composite etc.
Integrated distributing directional explosion cylinder manufacture craft provided by the invention is simple, with low cost, can be applied to every field, such as Treating Jammed Bit Accident, the damage effect of strengthening missile armament, tunnel Cut Blasting, presplit blasting etc.Its action principle is, by being arranged on taper shape on cylindrical shell or semicircular recess as energy-gathering jetting cavity liner, after explosive charge, the detonation wave of HTHP acts on pit, pit extruding is driven and forms high speed energy-gathering jetting, the kinetic energy that can convert by Mohaupt effect energy-gathering jetting in explosive to, the high penetration property of using energy-gathering jetting tentatively destroys periphery medium, first on medium, obtain around multiple darker penetration holes, the high pressure detonation gas that follow-up explosive generates enters penetration hole and causes secondary to destroy by the film flying of gas wedging action and torpedo shell cylindrical shell formation itself, reach purpose of design.
Integrated distributing directional explosion cylinder provided by the invention adopts various outer diameter can assemble cylindrical shell, can assemble according to specific requirement at the construction field (site) temporarily, and interim powder charge, can adapt to different requirement of engineering, can ensure again torpedo shell transport, use safety.
Integrated distributing directional explosion cylinder provided by the invention is specially adapted to solve freedom in minor affairs face even without Cut Blasting difficulty under Free Face Conditions.The essential object of Cut Blasting is to create, expand the scope of freedom.In traditional Cut Blasting technology, big gun hole is arranged as a middle emptying aperture, emptying aperture has 5-6 powder charge hole around, the powder charge of simultaneously detonating in a periphery 5-6 hole just can reach slotting effect, adopt integrated distributing directional explosion cylinder provided by the present invention, only need in interstitial hole, place powder charge, a periphery 5-6 hole, as emptying aperture, can reach the excavation effect of equal quality, but single explosive quantity but reduces by 75～85% on year-on-year basis, corresponding blasting vibration also can significantly reduce; Producing toxic gas volume easily arranges less; Improve blast hole utilizing factor and cyclic advance simultaneously, expand economic benefit.While particularly carrying out explosion for the tunnel that in the complex environment of city, clipping is larger, effect is more obvious.
Feature of the present invention:
(1). utilize torpedo shell self material to form energy-gathering jetting, there is integral structure, without processing separately cavity liner, save material, reduce costs;
(2). due to without independent processing cavity liner, volume of the present invention can be less than conventional energy-gathering jetting structure, is suitable for the needs of formation jet little space in;
(3). jet forming part can intersperse among cylindrical shell as required, can meet the needs of any direction jet.Even can make warp architecture, be applicable to horizontal ore extraction in vertical shaft.
Also be further described below by accompanying drawing in conjunction with the embodiments.
Brief description of the drawings
Fig. 1 is the structural representation of four directions of the present invention to a kind of embodiment of integrated distributing directional explosion cylinder, in figure, has adopted and has analysed and observe.
Fig. 2 is the top view in A-A cross section in Fig. 1.
Detailed description of the invention
embodiment 1
Referring to Fig. 1, make cubic to integrated distributing directional explosion cylinder: cylindrical shell 3 height are 15cm, external diameter is 15mm, wall thickness 1.5mm, and material is #45 steel, cylindrical shell is provided with 16 pyramidal pits 1, its cone-apex angle is 80 °, and the long 4.5mm of bus in pit, is divided into the uniform arrangement of four lines, 4 of every row are uniform, and the first row is uniform is 30mm apart from barrel port.Centre distance along cylindrical shell 3 longitudinal adjacent two row pits is 30mm.Be processed with external screw thread in cylindrical shell one end, the other end is provided with the internal thread of dimension, on cylindrical shell according to designing in advance mark groove position, steel pipe is burnt with liquefied gas-oxyacetylene torch in groove position red, then with drift angle be 80 ° taper die punching press form pit.After all pits all complete, place nature cooling.Then by emulsion and RDX(hexogen) the explosive 2(that mixes wherein the mass ratio of emulsion and RDX be 1:4, overall degree of packing is 1.5g/cm
3) be loaded in cylindrical shell 3.Nonel detonator 6 is inserted in explosive 2 through the centre bore of upper end cap 4, and lower endcaps 5, upper end cap 4 are tightened on cylindrical shell 3.
And simulate slotting with this integrated distributing directional explosion cylinder and test:
Make tunnel slotting model.At seamless steel pipe, (height is 50cm, and internal diameter is 30cm, and thick is 1cm, 45# steel) in water cement mortar, cement mortar is made raw material and is adopted cement, yellow ground, water, wherein cement quality: yellow sand quality: water quality=20kg:45kg:12kg, recipe ratio is about 1:2.3:0.5.Cement mortar build after maintenance 28 days under home, intensity reaches C30 concrete grade.When joints cement mortar, pre-buried PVC(external diameter is 16mm, and wall thickness is 1mm, and height is 54cm) pipe totally 7, steel pipe middle is placed 1, taking middle pvc pipe center as the center of circle, uniform other 6 pvc pipes on the circumference of radius 40mm.Cement mortar slightly after dry forming is taken out pvc pipe.Obtain from building concrete filled steel tube tunnel microscopic model.
Stifled 10cm is added to yellow sand in tunnel model intermediate hole bottom, then put into the above-mentioned torpedo shell of making in advance, then add stifledly with yellow sand, excite the above-mentioned torpedo shell of blasting cap initiation with exploder.Within the scope of explosion rear perimeter edge emptying aperture, cement mortar is by successful fragmentation.Obtain high 16cm, the cylindrical cavity of diameter 9.2cm.
embodiment 2
Two, being made into one distributing directional explosion cylinder: cylindrical shell height is 8cm, and external diameter is 12mm, and wall thickness is 2mm, and material is #45 steel, processes external screw thread in cylindrical shell one end, and the other end processes same equal-specification internal thread.On design cylindrical shell, have 9 semicircular recess, pit bottom surface diameter 6mm, is divided into the uniform arrangement of three row, and 3 of every row are uniform, and the first row is uniform apart from barrel port 20mm.Centre distance along the longitudinal adjacent two row pits of cylindrical shell is 20mm.On the cylindrical shell that has upper and lower screw thread, according to designing in advance mark groove position, with liquefied gas-oxyacetylene torch, steel pipe is burnt redly in groove position, then form pit with semicircle mould punching, after all pits all complete, place nature cooling.Make altogether two, two cylindrical shells are linked into an integrated entity by internal and external threads.Then (wherein the mass ratio of emulsion and RDX is 1:4 to explosive emulsion and RDX being mixed, and overall degree of packing is 1.5g/cm
3) be loaded in cylindrical shell.Nonel detonator is inserted in explosive through the centre bore of upper end cap, and lower endcaps, upper end cap are tightened on cylindrical shell.
Carry out the test of penetration steel pipe with above-mentioned integrated distributing directional explosion cylinder: (material is 45# steel on the ground by vertically vertical a steel pipe; Long 30cm, external diameter 15cm, thick 3mm), the longitudinally unsettled steel pipe center that is placed on of torpedo shell that fills explosive, detonator.Detonation tube detonator.After explosion, find that on steel pipe inner wall, each cylindrical shell pit correspondence position has darker penetration groove, penetration groove average diameter 4mm, dark 2.2mm.Part streams has penetrated steel pipe.Inside pipe wall is evenly distributed with the pit that torpedo shell outer wall film flying impacts.
embodiment 3
Two, being made into one distributing directional explosion cylinder: cylindrical shell height is 9cm, and external diameter is 15mm, and wall thickness is 1.5mm, and material is #45 steel, processes external screw thread in cylindrical shell one end, and the other end processes same equal-specification internal thread.On design cylindrical shell, have 8 pyramidal pits, its cone-apex angle is 80 °, and in pit, bus is long is divided into the uniform arrangement of two row for 4.5mm, and 4 of every row are uniform, and the first row is uniform apart from barrel port 30mm.Centre distance along the longitudinal adjacent two row pits of cylindrical shell is 30mm.On the cylindrical shell that has upper and lower screw thread, marking out groove position according to design in advance, with liquefied gas-oxyacetylene torch, steel pipe is burnt redly in groove position, then is the taper die punching press formation pit of 80 ° with drift angle, and after all pits all complete, placement nature is cooling.Make altogether two, two cylindrical shells are connected to an entirety by internal and external threads.(wherein the mass ratio of emulsion and RDX is 1:4 to the explosive that emulsion and RDX are mixed, and overall degree of packing is 1.5g/cm
3) be loaded in cylindrical shell.Nonel detonator is inserted in explosive through the centre bore of upper end cap, lower endcaps, upper end cap are tightened on cylindrical shell.
Make tunnel slotting model.At seamless steel pipe, (height is 50cm, and internal diameter is 30cm, and thick is 1cm, 45# steel) in water cement mortar, cement mortar is made raw material and is adopted cement, yellow ground, water, wherein cement quality: yellow sand quality: water quality=20kg:45kg:12kg, recipe ratio is about 1:2.3:0.5.Cement mortar is maintenance 28 days under normal room temperature again after building, and intensity reaches C30 concrete grade.When joints cement mortar, pre-buried PVC(external diameter is 16mm, and wall thickness is 1mm, and height is 54cm) pipe totally 7, steel pipe middle is placed 1, taking middle pvc pipe center as the center of circle, uniform other 6 pvc pipes on the circumference of radius 40mm.Cement mortar slightly after dry forming is taken out pvc pipe.Obtain from building concrete filled steel tube tunnel microscopic model.
Stifled 10cm is added to yellow sand in tunnel model intermediate hole bottom, then put into the directional explosion cylinder of making in advance, then add stifledly with yellow sand, excite the above-mentioned torpedo shell of blasting cap initiation with exploder.Within the scope of explosion rear perimeter edge emptying aperture, cement mortar is by successful fragmentation.Obtain high 18cm, the cylindrical cavity of diameter 9.5cm.Effect is similar to embodiment 1.
Claims (2)
1. an integrated distributing directional explosion cylinder, including overall diameter is 1cm-50cm, wall thickness is the tubular cylindrical shell of 1mm-15mm, end cap and apparatus to cause bursting, in the cavity of cylindrical tube, explosive is housed, cylindrical shell both ends are provided with the internal thread or the external screw thread that match with end cap, the apparatus to cause bursting being inserted in explosive is drawn out to outside cylindrical shell by the hole on one of them end cap, it is characterized in that, on the periphery of described tubular cylindrical shell, be provided with taper shape or the semicircular recess of regular distribution in column in a row or irregular alignment, pit axis is vertical with the longitudinal axis of tubular cylindrical shell, distance along the axis of two adjacent pit of cylindrical shell longitudinal axis is 1cm-50cm, described pit forms the projection as energy gathering cap of respective shapes on cylinder inboard wall face, in the time that pit is taper shape, its cone-apex angle is 30 °-160 °, the long 0.5cm-20cm of bus, and bottom surface diameter is 2-50 times of cylindrical shell wall thickness, in the time that pit is semicircle, its radius is 2-50 times of cylindrical shell wall thickness.
2. integrated distributing directional explosion cylinder as claimed in claim 1, is characterized in that, one end of described cylindrical shell arranges external screw thread, and the other end arranges internal thread, and two-part screw thread specification is identical, two or more cylindrical shells can be linked to be to an entirety and use.
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| CN201410218608.1A CN103968719A (en) | 2014-05-23 | 2014-05-23 | Integrated scattering type oriented explosion cylinder |
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| CN201410218608.1A CN103968719A (en) | 2014-05-23 | 2014-05-23 | Integrated scattering type oriented explosion cylinder |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154832A (en) * | 2014-08-18 | 2014-11-19 | 葛洲坝易普力股份有限公司 | Blasting method for high-temperature sealed fire areas |
| CN104501662A (en) * | 2014-12-04 | 2015-04-08 | 安徽理工大学 | Spiral energy-gathering type slotting explosive column casing |
| CN106767182A (en) * | 2017-03-23 | 2017-05-31 | 中国科学技术大学 | A kind of explosion switch based on multiaspect energy-gathering jetting |
| CN106996718A (en) * | 2017-06-11 | 2017-08-01 | 贵州大学 | A kind of new downhole explosion Concentrated charge |
| CN107703185A (en) * | 2017-09-12 | 2018-02-16 | 安徽方圆机电股份有限公司 | A kind of thermal analysis experiment explosive explosion-proof vent device |
| CN107726936A (en) * | 2017-11-08 | 2018-02-23 | 中国科学技术大学 | Self-enclosed spiral shape cumulative joint-cutting device |
| CN109186384A (en) * | 2018-09-29 | 2019-01-11 | 中国水利水电科学研究院 | A kind of spherical floatation type ice breaking by explosion device of multidirectional cumulative |
| CN109489512A (en) * | 2018-12-26 | 2019-03-19 | 中国科学技术大学 | A kind of deformable folding portable quick-burning charge energy-gathering device |
| CN111578798A (en) * | 2020-05-08 | 2020-08-25 | 安徽理工大学 | Undercutting blasting method based on energy-gathering pre-cutting and bottom strengthening throwing |
| CN111664763A (en) * | 2020-05-08 | 2020-09-15 | 安徽理工大学 | Slitting blasting method based on pre-cutting of cutting seams and bottom reinforced throwing |
| CN114838627A (en) * | 2022-04-08 | 2022-08-02 | 中国科学技术大学 | Explosion cylinder based on laughing gas self-decomposition reaction |
| CN113932965B (en) * | 2021-10-15 | 2023-12-12 | 南京君缘科爆工程技术有限公司 | Method for measuring explosion stress in medium based on PVDF sensor |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154832B (en) * | 2014-08-18 | 2015-11-25 | 葛洲坝易普力股份有限公司 | A kind of blasting method for high temperature flame range |
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| CN106767182A (en) * | 2017-03-23 | 2017-05-31 | 中国科学技术大学 | A kind of explosion switch based on multiaspect energy-gathering jetting |
| CN106767182B (en) * | 2017-03-23 | 2018-07-03 | 中国科学技术大学 | A kind of explosion switch based on multi-panel energy-gathering jetting |
| CN106996718A (en) * | 2017-06-11 | 2017-08-01 | 贵州大学 | A kind of new downhole explosion Concentrated charge |
| CN107703185A (en) * | 2017-09-12 | 2018-02-16 | 安徽方圆机电股份有限公司 | A kind of thermal analysis experiment explosive explosion-proof vent device |
| CN107726936B (en) * | 2017-11-08 | 2023-08-29 | 中国科学技术大学 | Self-closing spiral energy-gathering joint cutter |
| CN107726936A (en) * | 2017-11-08 | 2018-02-23 | 中国科学技术大学 | Self-enclosed spiral shape cumulative joint-cutting device |
| CN109186384A (en) * | 2018-09-29 | 2019-01-11 | 中国水利水电科学研究院 | A kind of spherical floatation type ice breaking by explosion device of multidirectional cumulative |
| CN109186384B (en) * | 2018-09-29 | 2020-05-05 | 中国水利水电科学研究院 | Multidirectional energy-gathering spherical floating type explosive ice breaking device |
| CN109489512A (en) * | 2018-12-26 | 2019-03-19 | 中国科学技术大学 | A kind of deformable folding portable quick-burning charge energy-gathering device |
| CN111578798A (en) * | 2020-05-08 | 2020-08-25 | 安徽理工大学 | Undercutting blasting method based on energy-gathering pre-cutting and bottom strengthening throwing |
| CN111664763A (en) * | 2020-05-08 | 2020-09-15 | 安徽理工大学 | Slitting blasting method based on pre-cutting of cutting seams and bottom reinforced throwing |
| CN113932965B (en) * | 2021-10-15 | 2023-12-12 | 南京君缘科爆工程技术有限公司 | Method for measuring explosion stress in medium based on PVDF sensor |
| CN114838627A (en) * | 2022-04-08 | 2022-08-02 | 中国科学技术大学 | Explosion cylinder based on laughing gas self-decomposition reaction |
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Application publication date: 20140806 |