CN114646245A - Tension type energy-gathering blasting device - Google Patents

Tension type energy-gathering blasting device Download PDF

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Publication number
CN114646245A
CN114646245A CN202210486633.2A CN202210486633A CN114646245A CN 114646245 A CN114646245 A CN 114646245A CN 202210486633 A CN202210486633 A CN 202210486633A CN 114646245 A CN114646245 A CN 114646245A
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China
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energy
frame
gathering
gathering frame
tensioning
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CN202210486633.2A
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CN114646245B (en
Inventor
朱群龙
汪泉
李志敏
李�瑞
张军
方敬贤
刘志宇
李泽华
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/08Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
    • F42D1/22Methods for holding or positioning for blasting cartridges or tamping cartridges
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The invention discloses a tensioning type energy-gathered blasting device which comprises a first energy-gathered frame, an inclined plane and a vertical plane, wherein a first limiting groove is formed in the bottom surface of the first energy-gathered frame, a limiting block is arranged on the top surface of the second energy-gathered frame, the supporting frame comprises a first supporting strip and a second supporting strip, the first supporting strip and the second supporting strip are symmetrically arranged, tensioning blocks are connected to the top ends of the first energy-gathered frame and the second energy-gathered frame, and tensioning pieces are arranged on the tensioning blocks. When the explosive detonator is detonated, the energy jet flow is ejected out through the first energy-gathering frame and the second energy-gathering frame, the tension convex strips are uniformly distributed on the first energy-gathering frame and the second energy-gathering frame, and when the tension convex strips and the inner wall of a blast hole are in a tension state, the rotation resistance is increased through the tension convex strips, so that the problem that the explosion effect is poor due to the fact that the direction of the energy jet flow is influenced by the rotational displacement in the moment is solved.

Description

Tension type energy-gathering blasting device
Technical Field
The invention relates to the technical field of blasting, in particular to a tensioning type energy-gathered blasting device.
Background
Blasting is a technology which utilizes the compression, loosening, destruction, throwing and killing effects generated by the explosion of explosives in air, water, earth and stone media or objects to achieve the expected purpose. The range of the study included: the properties and the using method of the explosive and the fire tool are that the explosive effect of the explosive charge in various media, the contact blasting and the non-contact blasting of the explosive charge to the target and the organization and the implementation of various blasting operations. The blasting operation comprises the steps of laying explosive in a blast hole drilled by a medium to be blasted or an excavated explosive chamber or on the surface of the blast hole, putting an initiating detonator into the blast hole, and then detonating. According to the shape of the explosive charge and the charging mode, the blasting method is mainly divided into three categories: blast hole, powder chamber, and bare-charge methods. The blast hole method is generally called blast hole method blasting, and is characterized in that blast holes with various apertures are drilled in a medium, and are detonated through the processes of charging, putting into a detonating primer, blocking an orifice, connecting a line and the like.
However, the energy-gathering blasting device on the market at present cannot meet the requirements of people due to relatively imperfect technology, and after the energy-gathering device in the prior art is embedded into a blast hole in practical application, circular motion or dislocation can be caused when a detonator is detonated due to the fact that the size of an energy-gathering frame cannot be completely attached to the size of the blast hole, so that the direction of energy jet flow is unstable, and the effect of cross section blasting is poor. We have therefore proposed a tensioning type energy accumulating blasting device to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a tension type energy-gathering blasting device, which solves the problem that the prior energy-gathering blasting device on the market proposed by the background technology cannot meet the requirements of people due to relatively imperfect technology, and the energy-gathering device in the prior art can not completely fit with the size of a blast hole due to the fact that the size of an energy-gathering frame cannot be completely fit with the size of the blast hole after being embedded into the blast hole in practical application, so that circular motion or dislocation can be caused when a detonator is detonated, the direction of energy jet flow is unstable, and the effect of cross section blasting is poor.
In order to achieve the purpose, the invention provides the following technical scheme: a tensioning type energy-gathering blasting device comprises a first energy-gathering frame, an inclined plane and a vertical plane, wherein a first limiting groove is formed in the bottom surface of the first energy-gathering frame, a limiting block is arranged on the top surface of a second energy-gathering frame, a second energy-gathering frame is arranged below the first energy-gathering frame, supporting frames are arranged on the inner walls of the first energy-gathering frame and the second energy-gathering frame, each supporting frame comprises a first supporting strip and a second supporting strip, the first supporting strip and the second supporting strip are symmetrically arranged, the supporting frames are connected with placing frames, grooves are formed in the placing frames, connecting buckles are arranged on the outer side surfaces of the first energy-gathering frame and the second energy-gathering frame, second limiting grooves are formed in the connecting buckles, rubber rings are installed on the second limiting grooves, and tangent planes are formed in the outer side surfaces of the first energy-gathering frame and the second energy-gathering frame, first gather and to have seted up first concave surface on the other end medial surface of energy frame and second gather energy frame, and first gather and all be fixed with tight sand grip that rises on the lateral surface of energy frame and second gather energy frame, first gather and to be connected with tight piece that rises on energy frame and the second gather energy frame top, and the tight piece that rises has been seted up on the tight piece that rises, it is provided with the spacer groove to rise between the tight piece, and the tight piece inboard that rises has seted up the second concave surface, the tight piece lateral surface that rises is provided with the barb, and has seted up the inclined plane on the barb, the another side on inclined plane is provided with the facade.
Preferably, the combined shape of the first energy-gathering frame and the second energy-gathering frame is cylindrical, and the tensioning convex strips are uniformly distributed around the axes of the first energy-gathering frame and the second energy-gathering frame.
Preferably, the limiting blocks are symmetrically arranged on the second energy concentrating frame in two groups, the position of the first limiting block corresponds to the position of the limiting groove, and the first limiting block is installed on the limiting groove in an embedded mode.
Preferably, the first energy gathering frame and the second energy gathering frame are connected with the placing frame through supporting frames, the combined shape of the first supporting strips and the second supporting strips is in a diamond shape, and the supporting frames are uniformly distributed around the circle center of the placing frame.
Preferably, the connecting buckles are respectively distributed on the first energy gathering frame and the second energy gathering frame in four groups, and the first energy gathering frame and the second energy gathering frame form limiting connection through the connecting buckles and the rubber rings.
Preferably, the size of the inclination angle of the tangent plane is smaller than that of the inclination angle of the first concave surface.
Preferably, the tensioning pieces are uniformly distributed on the tensioning block, and the size of the second concave surface is the same as that of the first concave surface.
Preferably, the barbs are uniformly distributed on the tensioning sheet, and the vertical surfaces of the barbs and the outer side surface of the tensioning sheet are in a vertical relation.
Compared with the prior art, the invention has the beneficial effects that: this tensioning type energy-gathered blasting device:
(1) the explosive detonator is provided with a first energy-gathering frame and a second energy-gathering frame, when the explosive detonator is detonated, energy jet flow is ejected out through the space between the first energy-gathering frame and the second energy-gathering frame, and the tensioning convex strips are uniformly distributed on the first energy-gathering frame and the second energy-gathering frame;
(2) the detonator fixing device is provided with a supporting frame, wherein the supporting frame is formed by combining a first supporting strip and a second supporting strip, and the combined shape of the first supporting strip and the second supporting strip is in a diamond shape;
(3) the first energy-collecting frame and the second energy-collecting frame are spliced and combined to form a single monomer when in use, and the monomers are simultaneously combined and spliced, so that the problem of inconvenience in the transfer process due to the fact that the energy-collecting pipes are relatively long in length in the prior art is solved, and the device is more convenient and fast;
(4) be provided with the tangent plane, first concave surface and second concave surface, when gathering the energy frame and arranging the big gun hole in inside, the tangent plane is embedded setting this moment on first concave surface and second concave surface to gather the energy frame through the ramming and make the tangent plane continue to first concave surface and the inside displacement of second concave surface, this kind of mode makes first gathering appear the gap between energy frame and the second gather the energy frame, and the lateral surface of first gathering the energy frame this moment and the lateral surface and the big gun hole inner wall of second gathering the energy frame love are tight state that rises, thereby the stability of energy efflux direction when the guarantee explodes.
Drawings
FIG. 1 is a schematic view of a main body structure of a tension type energy-gathered blasting device according to the present invention;
FIG. 2 is a schematic cross-sectional view of a main body of a tension type energy-gathered blasting device according to the present invention;
FIG. 3 is a schematic view of a front view of a tension type energy-gathered blasting device according to the present invention;
FIG. 4 is a schematic view of a single body structure of a tension type energy-gathered blasting device according to the present invention;
FIG. 5 is a schematic diagram of a single-body splitting explosion structure of the tension type energy-gathered blasting device of the invention;
FIG. 6 is a schematic diagram of the internal structure of a second energy-gathering frame of a tension type energy-gathering blasting device according to the present invention;
FIG. 7 is a schematic view of the internal structure of a first energy-gathering frame of a tension type energy-gathering blasting device according to the present invention;
FIG. 8 is a schematic view of a tensioning block of the tensioning type energy-gathered blasting device of the present invention;
FIG. 9 is a schematic view of the structure of the back of a tensioning block of the tensioning type energy-gathered blasting device of the present invention;
fig. 10 is a schematic structural view of the tensioning type energy-gathered blasting device at a position A in fig. 4.
In the figure: 1. a first energy gathering frame; 101. a first limit groove; 2. a second polymeric framework; 201. a limiting block; 3. a support frame; 301. a first support bar; 302. a second supporting strip; 4. placing a frame; 5. a groove; 6. a connecting buckle; 601. a second limit groove; 7. a rubber ring; 8. cutting into noodles; 9. a first concave surface; 10. tensioning the convex strips; 11. a tensioning block; 1101. a tensioning sheet; 1102. a spacing groove; 1103. a second concave surface; 1104. a barb; 110401, inclined plane; 110402, facade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, the present invention provides a technical solution: a tensioning type energy-gathering blasting device comprises a first energy-gathering frame 1, a first limiting groove 101, a second energy-gathering frame 2, limiting blocks 201, a supporting frame 3, a placing frame 4, a groove 5, a connecting buckle 6, a second limiting groove 601, a rubber ring 7, a section 8, a first concave surface 9, tensioning convex strips 10, tensioning blocks 11, tensioning pieces 1101, a spacing groove 1102, a second concave surface 1103, barbs 1104, an inclined surface 110401 and a vertical surface 110402, wherein the first limiting groove 101 is formed in the bottom surface of the first energy-gathering frame 1, the limiting blocks 201 are arranged on the top surface of the second energy-gathering frame 2, the second energy-gathering frame 2 is arranged below the first energy-gathering frame 1, the supporting frames 3 are arranged on the inner walls of the first energy-gathering frame 1 and the second energy-gathering frame 2, the supporting frame 3 comprises a first supporting strip 301 and a second supporting strip 302, the first supporting strip 301 and the second supporting strip 302 are symmetrically arranged, the supporting frame 3 is connected with the placing frame 4, a groove 5 is arranged on the placing frame 4, the outer side surfaces of the first energy-gathering frame 1 and the second energy-gathering frame 2 are both provided with a connecting buckle 6, the connecting buckle 6 is provided with a second limiting groove 601, the second limiting groove 601 is provided with a rubber ring 7, the outer side surfaces of the first energy-gathering frame 1 and the second energy-gathering frame 2 are provided with a tangent plane 8, the inner side surfaces of the other ends of the first energy-gathering frame 1 and the second energy-gathering frame 2 are provided with a first concave surface 9, the outer side surfaces of the first energy-gathering frame 1 and the second energy-gathering frame 2 are both fixed with a tensioning convex strip 10, the top ends of the first energy-gathering frame 1 and the second energy-gathering frame 2 are connected with a tensioning block 11, the tensioning block 11 is provided with a tensioning sheet 1101, a spacing groove 1102 is arranged between the tensioning sheets 1101, the inner side surface of the tensioning sheet 1101 is provided with a second concave surface, the outer side surface of the tensioning sheet 1101 is provided with a barb 1104, and the inclined surface 110401 is arranged on the barb 1104, the other side of the ramp 110401 is provided with a riser 110402.
The combined shape of the first energy-gathering frame 1 and the second energy-gathering frame 2 is cylindrical, and the tensioning raised lines 10 are uniformly distributed around the axes of the first energy-gathering frame 1 and the second energy-gathering frame 2, so that the rotation resistance is increased, and the explosive jet flow is more stable.
Stopper 201 bilateral symmetry sets up two sets ofly on second aggregate energy frame 2, and stopper 201's position is corresponding with the position of first spacing groove 101 to stopper 201 is embedded installation on first spacing groove 101, makes things convenient for the first installation of gathering between 1 surplus second aggregate energy frame 2 of energy frame spacing, makes the device more convenient.
The first energy gathering frame 1 and the second energy gathering frame 2 are connected with the placing frame 4 through the supporting frame 3, the combined shape of the first supporting strip 301 and the second supporting strip 302 is in a diamond shape, and the supporting frame 3 is uniformly distributed around the circle center of the placing frame 4, so that detonator explosives with different diameters and sizes can be applied, and the device can be applied to different working conditions.
The connecting buckle 6 respectively distributes on first gather can frame 1 and second gather can frame 2 both and have four groups, and first gather can frame 1 and second gather can frame 2 both and constitute spacing connection through connecting buckle 6 and rubber circle 7 to it is spacing to realize connecting first gather can frame 1 and second gather can frame 2, makes the device more convenient when installing.
The size of the inclination angle of the tangent plane 8 is smaller than that of the inclination angle of the first concave surface 9, and the first energy gathering frame 1 and the second energy gathering frame 2 are in a tensioning state in the blast hole through displacement extrusion of the tangent plane 8.
The tensioning sheets 1101 are uniformly distributed on the tensioning block 11, and the size of the second concave surface 1103 is the same as that of the first concave surface 9, so that the first energy gathering frame 1 and the second energy gathering frame 2 are limited, and the device is more stable.
The barbs 1104 are uniformly distributed on the tension sheet 1101, the vertical surface 110402 is perpendicular to the outer side surface of the tension sheet 1101, and when the tension sheet 1101 is extruded and deformed, the vertical surface 110402 prevents the tension block 11 from displacing, so that the device is more stable.
The working principle of the embodiment is as follows: when using this tensioning type energy-gathering blasting device, at first, splice first energy-gathering frame 1 and second energy-gathering frame 2 together to make stopper 201 embedding block on first spacing groove 101, later install rubber ring 7 on second spacing groove 601 on connector link 6, thereby realize carrying on spacingly to first energy-gathering frame 1 and second energy-gathering frame 2. Then, explosive or detonators are mounted on the placing frame 4, and meanwhile, grooves 5 are formed in the placing frame 4, so that detonator leads can be conveniently placed, then, a supporting frame 3 is arranged between the first energy-gathering frame 1 and the second energy-gathering frame 2 of the placing frame 4, the supporting frame 3 is formed by combining a first supporting strip 301 and a second supporting strip 302, the shape formed by combining the first supporting strip 301 and the second supporting strip 302 is rhombic, the first supporting strip 301 and the second supporting strip 302 deform when detonators are placed, so that the placing space between the placing frames 4 is increased, and the detonators with different sizes can be handled.
Then, when blasting operation is performed, the tensioning block 11 is firstly installed to a proper depth of the blast hole, and then the combined first energy collecting frame 1 and the second energy collecting frame 2 are sequentially placed inside the blast hole, so that the position of the tangent plane 8 corresponds to the positions of the first concave surface 9 and the second concave surface 1103. After that, external force is applied to the combined first energy-gathering frame 1 and the combined second energy-gathering frame 2, the combined first energy-gathering frame 1 and the combined second energy-gathering frame 2 are subjected to external force displacement, and due to the influence of the tangent plane 8, the first energy-gathering frame 1 and the second energy-gathering frame 2 expand, so that the tension raised lines 10 on the first energy-gathering frame 1 and the second energy-gathering frame 2 are tightly attached to the inner wall of the blast hole in a tensioning mode, and meanwhile, the tension sheets 1101 on the tension block 11 are extruded and expanded on the same way, so that the barbs 1104 are clamped with the inner wall of the blast hole in a limiting mode. When the detonator is detonated, the energy jet flow is ejected out through the space between the first energy-gathering frame 1 and the second energy-gathering frame 2, and the rotation resistance force is increased through the tension convex strips 10, so that the ejection direction of the energy jet flow is more stable. This is the entire workflow. And those not described in detail in this specification are well within the skill of those in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (8)

1. A tension type energy-gathering blasting device comprises a first energy-gathering frame (1), an inclined plane (110401) and a vertical plane (110402), and is characterized in that: the first energy-gathering frame (1) is provided with a first limiting groove (101) on the bottom surface, the second energy-gathering frame (2) is provided with a limiting block (201) on the top surface, the second energy-gathering frame (2) is arranged below the first energy-gathering frame (1), supporting frames (3) are arranged on the inner walls of the first energy-gathering frame (1) and the second energy-gathering frame (2), each supporting frame (3) comprises a first supporting strip (301) and a second supporting strip (302), the first supporting strip (301) and the second supporting strip (302) are symmetrically arranged, the supporting frames (3) are connected with placing frames (4), grooves (5) are formed in the placing frames (4), connecting buckles (6) are arranged on the outer side surfaces of the first energy-gathering frame (1) and the second energy-gathering frame (2), and second limiting grooves (601) are formed in the connecting buckles (6), the rubber ring (7) is installed on the second limiting groove (601), a tangent plane (8) is formed on the outer side surface of the first energy-gathering frame (1) and the outer side surface of the second energy-gathering frame (2), a first concave surface (9) is formed on the inner side surface of the other end of the first energy-gathering frame (1) and the inner side surface of the other end of the second energy-gathering frame (2), tensioning convex strips (10) are fixed on the outer side surfaces of the first energy-gathering frame (1) and the second energy-gathering frame (2), the top ends of the first energy-gathering frame (1) and the second energy-gathering frame (2) are connected with tensioning blocks (11), tensioning pieces (1101) are formed on the tensioning blocks (11), a spacing groove (1102) is formed between the tensioning pieces (1101), a second concave surface (1103) is formed on the inner side surface of the tensioning pieces (1101), barbs (1104) are arranged on the outer side surfaces of the tensioning pieces (1101), and inclined planes (110401) are formed on the barbs (1104), the other side of the inclined plane (110401) is provided with a vertical plane (110402).
2. The tensioned, energy-gathered blasting device of claim 1, wherein: the combined shape of the first energy-gathering frame (1) and the second energy-gathering frame (2) is cylindrical, and the tensioning convex strips (10) are uniformly distributed around the axle centers of the first energy-gathering frame (1) and the second energy-gathering frame (2).
3. The tensioned, energy-gathered blasting device of claim 1, wherein: the limiting blocks (201) are symmetrically arranged on the second energy-concentrating frame (2) in a left-right mode, the positions of the limiting blocks (201) correspond to the positions of the first limiting grooves (101), and the limiting blocks (201) are installed in an embedded mode on the first limiting grooves (101).
4. The tensioned, energy-gathered blasting device of claim 1, wherein: the first energy gathering frame (1) and the second energy gathering frame (2) are connected with the placing frame (4) through the supporting frame (3), the combined shape of the first supporting strip (301) and the second supporting strip (302) is in a diamond shape, and the supporting frame (3) is uniformly distributed around the circle center of the placing frame (4).
5. The tensioned, energy-gathered blasting device of claim 1, wherein: the connecting buckles (6) are respectively distributed with four groups on the first energy gathering frame (1) and the second energy gathering frame (2), and the first energy gathering frame (1) and the second energy gathering frame (2) form limiting connection through the connecting buckles (6) and the rubber rings (7).
6. The tensioned, energy-gathered blasting device of claim 1, wherein: the size of the inclination angle of the tangent plane (8) is smaller than that of the first concave surface (9).
7. The tensioned, energy-gathered blasting device of claim 1, wherein: the tensioning sheets (1101) are uniformly distributed on the tensioning block (11), and the size of the second concave surface (1103) is the same as that of the first concave surface (9).
8. The tensioned, energy-gathered blasting device of claim 1, wherein: the barbs (1104) are uniformly distributed on the tension sheet (1101), and the vertical surface (110402) is perpendicular to the outer side surface of the tension sheet (1101).
CN202210486633.2A 2022-05-06 2022-05-06 Tensioning type energy gathering blasting device Active CN114646245B (en)

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CN114646245B CN114646245B (en) 2023-04-25

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Publication number Priority date Publication date Assignee Title
JPH11211398A (en) * 1998-01-21 1999-08-06 Asahi Chem Ind Co Ltd Explosive protective cylinder for smooth blasting
CN104457458A (en) * 2014-10-11 2015-03-25 本钢板材股份有限公司 Large-aperture directional blasting method and cartridge bag
CN204988049U (en) * 2015-08-06 2016-01-20 魏华昌 Box -like gathering of tunnel universal set can charging means
CN105547063A (en) * 2015-12-08 2016-05-04 中国地质大学(武汉) Linear energy gathering smooth blasting device
CN208059705U (en) * 2018-04-13 2018-11-06 张友明 A kind of rock gangway photoface exploision angle adjustable integral type cumulative pipe device
CN209399858U (en) * 2018-12-13 2019-09-17 江西国泰民爆集团股份有限公司 A kind of borehole convenient for powder charge
CN210106869U (en) * 2019-06-01 2020-02-21 福建中勤建工有限公司 House pipeline equipment dampproof device
CN112393654A (en) * 2020-11-11 2021-02-23 中国人民解放军陆军工程大学 Two-way energy-gathering blasting charge structure of joint-cutting pipe
CN212692706U (en) * 2020-07-28 2021-03-12 安徽雷鸣爆破工程有限责任公司 Explosive loading equipment for presplitting blasting
CN215064143U (en) * 2021-05-21 2021-12-07 核工业南京建设集团有限公司 Auxiliary device for smooth surface hole blasting charging

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11211398A (en) * 1998-01-21 1999-08-06 Asahi Chem Ind Co Ltd Explosive protective cylinder for smooth blasting
CN104457458A (en) * 2014-10-11 2015-03-25 本钢板材股份有限公司 Large-aperture directional blasting method and cartridge bag
CN204988049U (en) * 2015-08-06 2016-01-20 魏华昌 Box -like gathering of tunnel universal set can charging means
CN105547063A (en) * 2015-12-08 2016-05-04 中国地质大学(武汉) Linear energy gathering smooth blasting device
CN208059705U (en) * 2018-04-13 2018-11-06 张友明 A kind of rock gangway photoface exploision angle adjustable integral type cumulative pipe device
CN209399858U (en) * 2018-12-13 2019-09-17 江西国泰民爆集团股份有限公司 A kind of borehole convenient for powder charge
CN210106869U (en) * 2019-06-01 2020-02-21 福建中勤建工有限公司 House pipeline equipment dampproof device
CN212692706U (en) * 2020-07-28 2021-03-12 安徽雷鸣爆破工程有限责任公司 Explosive loading equipment for presplitting blasting
CN112393654A (en) * 2020-11-11 2021-02-23 中国人民解放军陆军工程大学 Two-way energy-gathering blasting charge structure of joint-cutting pipe
CN215064143U (en) * 2021-05-21 2021-12-07 核工业南京建设集团有限公司 Auxiliary device for smooth surface hole blasting charging

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