CN113587759B - Upward blast hole blocking device - Google Patents
Upward blast hole blocking device Download PDFInfo
- Publication number
- CN113587759B CN113587759B CN202110887389.6A CN202110887389A CN113587759B CN 113587759 B CN113587759 B CN 113587759B CN 202110887389 A CN202110887389 A CN 202110887389A CN 113587759 B CN113587759 B CN 113587759B
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- water
- rod
- device body
- bag
- supporting rod
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000007667 floating Methods 0.000 claims abstract description 27
- 229920001971 elastomer Polymers 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 4
- 229920000126 latex Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005422 blasting Methods 0.000 abstract description 21
- 230000005484 gravity Effects 0.000 abstract description 17
- 239000002360 explosive Substances 0.000 abstract description 15
- 239000000428 dust Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 239000004927 clay Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses an upward blast hole blocking device which comprises a water cannon bag, an articulated element, a sliding block, a floating ball, a connecting sleeve, a supporting rod structure, a connecting rod, a fixed rod, a rubber ball, a device body and a fixed ring, wherein the articulated element is arranged on the water cannon bag; the device body is arranged in a cylindrical structure, the upper end of the device body is provided with a honeycomb water outlet, and the lower end of the device body is provided with a water filling port; the water cannon bag is sleeved on the honeycomb water outlet; a floating ball is arranged in the device body and close to the lower part of the honeycomb water outlet, the aperture of the water outlet is larger than that of the water filling port, and the diameter of the floating ball is between the two diameters; the connecting sleeve is hinged to one end of the connecting rod through the hinged piece, the other end of the connecting rod is connected with the supporting rod structure in a sliding mode through the sliding block sleeved on the supporting rod, one end of the supporting rod is fixedly connected with the rubber ball, the other end of the supporting rod is hinged to one end of the fixing rod through the hinged piece, and the other end of the fixing rod is hinged to the fixing circular ring. The device can prevent the explosive from slipping from the blast hole due to the self gravity and reduce the dust pollution caused by blasting.
Description
Technical Field
The invention relates to an upward blast hole blocking device for blasting construction, and belongs to the technical field of blasting engineering.
Background
Drilling blasting is a common blasting technology in engineering construction, and is still widely applied due to low cost especially in tunnel construction. In the blasting construction process, in order to ensure the blasting effect and maximize the utilization of energy generated by blasting, blast holes need to be plugged, and common plugging materials comprise foam clay, water cannon clay bags and polyurethane foaming agents. However, in field construction, especially when an upward blast hole is blocked, the blast hole cannot be effectively blocked due to the self gravity of explosive and blocking materials, so that the charging efficiency is reduced, and the blocking effect is poor. According to experimental research and engineering practice, the blast hole is fully filled after charging, so that the blasting cost can be greatly reduced, the blasting effect is improved, the engineering progress is accelerated, and the method has remarkable economic and social benefits.
Therefore, for those skilled in the art, it is an urgent need to solve the problem of providing a device for effectively blocking up a blast hole, so as to avoid the difficult and inefficient charging caused by the falling of the self gravity of the explosive, and effectively reduce the dust pollution caused by blasting.
Disclosure of Invention
In view of the above, the invention provides an upward blast hole blocking device, which can avoid difficult explosive charging and low efficiency caused by the self gravity sliding of explosives when in use; meanwhile, the device can also install a water cannon bag in the blast hole, so that the dust pollution caused by blasting is effectively reduced.
In order to achieve the purpose, the invention adopts the following technical scheme: an upward blast hole blocking device comprises a water cannon bag, an articulated element, a sliding block, a floating ball, a connecting sleeve, a supporting rod structure, a connecting rod, a fixed rod, a rubber ball, a device body and a fixed ring;
the device body is of a cylindrical structure, the upper end of the device body is provided with a honeycomb water outlet, and the lower end of the device body is provided with a water filling port; the water cannon bag is sleeved on the honeycomb water outlet;
furthermore, the water cannon bag can be installed in the blast hole, and dust pollution caused by blasting is effectively reduced.
The floating ball, the honeycomb water outlet and the water filling port are arranged in the device body and are close to the lower part of the honeycomb water outlet, the diameter of the water outlet is larger than that of the water filling port, and the diameter of the floating ball is between the diameter of the water outlet and the diameter of the water filling port;
further, when water is injected into the water cannon bag through the water injection port, the water cannon bag after water injection is attached to the inner wall of the cannon hole, water injection is stopped at the moment, and the density of the floating ball is slightly larger than that of water, so that the floating ball can be blocked at the aperture change position due to the gravity of the floating ball, water in the water cannon bag is prevented from flowing back, and at the moment, all blocking of the cannon hole is completed.
The connecting sleeve is hinged with one end of the connecting rod through the hinged piece, the other end of the connecting rod is connected with the supporting rod structure in a sliding mode through the sliding block sleeved on the supporting rod, one end of the supporting rod is fixedly connected with the rubber ball, the other end of the supporting rod is hinged with one end of the fixed rod through the hinged piece, and the other end of the fixed rod is hinged with the fixed circular ring;
further, when the water pipe pulling during the connecting sleeve, the bracing piece covers whole big gun hole, with the help of the frictional force of rubber ball and big gun hole inner wall, and the elasticity of bracing piece is maintained and can is fixed the blocking device effectively, prevents effectively that the explosive from because self gravity landing from the big gun hole landing, avoids the difficult, the inefficiency problem of powder charge that leads to the fact because of the self gravity landing of explosive.
Furthermore, the water cannon bag is made of rubber or latex.
Optionally, the water cannon bag is made of rubber or latex and has elasticity.
Furthermore, the water injection port is movably connected with the water pipe through a stainless steel hoop.
Optionally, the floating ball material has a density slightly greater than water.
Further, when water injection is stopped, the density of the floating ball is slightly larger than that of water, so that the floating ball can be plugged at the position of the pore diameter change due to the self gravity, water in the water cannon bag is prevented from flowing back, and at the moment, all plugging of the cannon hole is completed.
Preferably, the spring is snap-fitted on said connection sleeve.
Further, when the connecting sleeve moves downwards along the axial direction of the device body, the spring buckle arranged on the sleeve can penetrate through the fixed ring below the device to fix the hinged piece.
Preferably, the bracing piece, the connecting rod, the dead lever, the connecting sleeve, the rubber ball, the articulated elements and the articulated mechanism that the sliding block constitutes totally 6 groups are central symmetry along the sleeve circumference and arrange, and every group articulated mechanism is separated by 60.
Furthermore, the device is compact and ingenious in design, the space is reasonably utilized, the effect of effectively plugging blast holes can be achieved, the blasting cost can be greatly reduced, the blasting effect is improved, the engineering progress is accelerated, and the device has remarkable economic and social benefits.
Preferably, the connecting sleeve moves up and down in the axial direction along the device body.
Furthermore, the connecting sleeve follows the device body moves up and down in the axial direction, can pass through the articulated elements is adjusted the bracing piece coverage makes the bracing piece covers whole big gun hole, can fix effectively and block up the device, prevents that the explosive from landing from the big gun hole because self gravity.
Preferably, the support rod is made of elastic steel.
Furthermore, the connecting sleeve is pulled through the water pipe, so that the two sections of connecting rods form a straight line, the coverage range of the supporting rod is enlarged, the supporting rod covers the whole blast hole, at the moment, the rubber ball at the tail end of the supporting rod is in contact with the inner wall of the blast hole, and the supporting rod can be elastically deformed due to extrusion of the inner wall of the blast hole.
The invention solves the problems of difficult explosive charging and low efficiency caused by the falling of the self gravity of the explosive, the connecting sleeve is pulled by the water pipe to ensure that the supporting rod covers the whole blast hole, and the blocking device can be effectively fixed by means of the friction force between the rubber ball and the inner wall of the blast hole and the elastic force maintenance of the supporting rod, thereby effectively preventing the explosive from falling from the blast hole due to the self gravity. Meanwhile, the water cannon bag is arranged in the blast hole, so that dust pollution caused by blasting can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of an upward blasthole plugging device in use according to the invention;
FIG. 2 is a schematic view of the apparatus for plugging a blast hole in an upward direction before use of the present invention;
in fig. 1 and 2, 1 is a water cannon bag; 2 is a honeycomb water outlet; 3 is a hinge; 4 is a slide block; 5 is a floating ball; 6 is a connecting sleeve; 7 is a spring buckle; 8 is a water filling port; 9 is a supporting rod structure; 10 is a connecting rod; 11 is a fixed rod; 12 is a rubber ball; 13 is the device body; and 14 is a fixed ring.
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.
As shown in fig. 1 and fig. 2, the embodiment discloses an upward blast hole blocking device, which comprises a water cannon bag 1, a hinge 3, a slide block 4, a floating ball 5, a connecting sleeve 6, a support rod structure 9, a connecting rod 10, a fixing rod 11, a rubber ball 12, a device body 13 and a fixing ring 14;
the device body 13 is arranged in a cylindrical structure, the upper end of the device body is provided with a honeycomb water outlet 2, and the lower end of the device body is provided with a water filling port 8; the water cannon bag 1 is sleeved on the honeycomb water outlet 2;
when the water cannon bag type blasting machine is used, the water cannon bag 1 can be arranged in a blast hole, and dust pollution caused by blasting is effectively reduced.
A floating ball 5, the honeycomb water outlet 2 and the water filling port 8 are arranged in the device body 13 and close to the lower part of the honeycomb water outlet 2, the pore diameter of the water outlet 2 is larger than that of the water filling port 8, and the diameter of the floating ball 5 is between the two;
when the invention is used, after the blocking device is effectively fixed, water is injected into the water cannon bag 1 through the water injection port 8, so that the water cannon bag 1 after water injection can be attached to the inner wall of a cannon hole, at the moment, the water injection is stopped, and because the density of the floating ball 5 is slightly larger than that of water, the floating ball 5 can block the hole diameter change position due to the self gravity, the water in the water cannon bag is prevented from flowing back, and at the moment, the whole blockage of the cannon hole is completed.
Connecting sleeve 6 is articulated with connecting rod 10 one end through articulated elements 3, and the other end of connecting rod 10 is through slider 4 and the bracing piece structure 9 sliding connection of cover on bracing piece 9, 9 one end of bracing piece and rubber ball 12 fixed connection, and the bracing piece 9 other end passes through articulated elements 3 and 11 one end hinges of dead lever simultaneously, and the dead lever 11 other end is articulated with fixed ring 14.
When the device is used, a stainless steel clamp is used at a water injection port 8 to connect a water pipe, the water pipe is pulled downwards manually, so that the whole connecting sleeve 6 is driven to move downwards along the axial direction of a device body 13, two sections of connecting rods 10 form a straight line, one end of each connecting rod 10 is hinged with the corresponding connecting sleeve 6, the other end of each connecting rod 10 is in sliding connection with the corresponding supporting rod 9 through the corresponding slider 4, the sliders 4 are sleeved on the corresponding supporting rods 9, the covering range of the corresponding supporting rods 9 is expanded, the corresponding supporting rods 9 cover the whole blast hole, rubber balls 12 at the tail ends of the corresponding supporting rods 9 are in contact with the inner wall of the blast hole, the supporting rods 9 can be elastically deformed due to extrusion of the inner wall of the blast hole, the blocking device can be effectively fixed by means of the friction force between the rubber balls 12 and the inner wall of the blast hole and the elastic force maintenance of the corresponding supporting rods 9, and the blocking device can be effectively prevented from falling from the blast hole due to the self gravity. Meanwhile, the supporting rod 9 is hinged with one end of a fixed rod 11 through a hinge 3, the other end of the fixed rod 11 is hinged with a fixed ring 14, and a hinge mechanism is formed together, so that free rotation in a two-dimensional space can be realized.
In the embodiment, the water cannon bag 1 is made of rubber;
in another embodiment, the water cannon bag 1 is made of latex.
When the water cannon water outlet device is used, the water cannon bag 1 is made of rubber and has elasticity, and the water cannon water outlet device can be installed by directly sleeving the water cannon water outlet device on the honeycomb water outlet 2.
In this embodiment, the water injection port 8 is movably connected with the water pipe through a stainless steel clamp.
When the invention is used, the water injection port 8 and the water pipe are movably connected through the stainless steel clamp, and can be conveniently disassembled.
In this embodiment, the density of the floating ball 5 is slightly greater than that of water.
When the invention is used, when water injection is stopped, the density of the floating ball 5 is slightly larger than that of water, so that the floating ball 5 can block the hole diameter change position due to the self gravity, the water in the water cannon bag 1 is prevented from flowing back, and the whole blocking of the cannon hole is completed at the moment.
In this embodiment, the spring catch 7 is mounted on the connecting sleeve 6.
When the device is used, as the connecting sleeve 6 moves downwards along the axial direction of the device body 13, the spring buckle 7 arranged on the sleeve 6 can penetrate through the fixed ring below the device to fix the hinged piece.
When the water injection gun is used, the water injection pipe can be detached, the spring buckle 7 is pressed and pushed upwards along the axial direction, the blast hole blocking device is recovered to be in a state before use, and the water gun bag 1 can be detached after the auxiliary device is installed, so that the hinge mechanism can be recovered and reused.
In this embodiment, the support rod 9, the connecting rod 10, the fixing rod 11, the connecting sleeve 6, the rubber ball 12, the hinge 3 and the sliding block 4 constitute 6 hinge mechanisms, which are arranged in a central symmetry manner along the circumference of the sleeve, that is, each hinge mechanism is separated by 60 °.
When the device is used, the device is compact and ingenious in design, namely the space is reasonably utilized, the effect of effectively plugging blast holes can be achieved, the blasting cost can be greatly reduced, the blasting effect is improved, the project progress is accelerated, and the device has remarkable economic and social benefits.
In this embodiment, the connection sleeve 6 moves up and down in the axial direction along the apparatus body 13.
When the explosive plugging device is used, the connecting sleeve 6 moves up and down along the device body 13 in the axial direction, the covering range of the supporting rod 9 can be adjusted through the hinge piece 3, so that the supporting rod 9 covers the whole blast hole, the plugging device can be effectively fixed, and the explosive is prevented from sliding down from the blast hole due to the self gravity.
In this embodiment, the support rod 9 is made of elastic steel.
When the invention is used, the connecting sleeve 6 is pulled through the water pipe, so that the two sections of the connecting rods 10 form a straight line to expand the coverage range of the supporting rod 9 and cover the whole blast hole, the rubber ball 12 at the tail end of the supporting rod 9 is contacted with the inner wall of the blast hole, and the supporting rod 9 can generate elastic deformation due to the extrusion of the inner wall of the blast hole.
In use, after the emulsion explosive is filled, the device is placed into a blast hole, a stainless steel clamp is used for connecting a water pipe at a water filling port 8, the water pipe is pulled downwards manually, the whole connecting sleeve 6 is driven to move downwards along the axial direction of the device body 13, two sections of connecting rods 10 form a straight line, the coverage range of the supporting rod 9 is enlarged, the whole blast hole is covered by the supporting rod, the rubber ball 12 at the tail end of the supporting rod 9 is in contact with the inner wall of the blast hole at the moment, the supporting rod 9 can elastically deform due to extrusion of the inner wall of the blast hole, the blocking device can be effectively fixed by means of the friction force of the rubber ball 12 and the inner wall of the blast hole and the elastic force of the supporting rod 9, the explosive is prevented from sliding down from the blast hole due to the self gravity, and the problems of difficult charging and low efficiency of the upward blast hole in construction are effectively solved.
And then, water is injected into the water cannon bag 1 through the water injection port 8, so that the water cannon bag 1 after water injection can be attached to the inner wall of the cannon hole, water injection is stopped at the moment, and the density of the floating ball 5 is slightly larger than that of water, so that the floating ball 5 can be blocked at the aperture change position due to the self gravity, the water in the water cannon bag is prevented from flowing back, and at the moment, the whole blockage of the cannon hole is completed. Meanwhile, the device is provided with the water cannon bag 1 in the blast hole, and the dust pollution caused by blasting can be effectively reduced.
Finally, can dismantle the water injection pipe, press spring buckle 7, along the axial upwards push away, resume the big gun hole blocking device state before using, because 1 installation auxiliary device of water cannon bag can be dismantled, can retrieve articulating mechanism, reuse.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. An upward blast hole blocking device is characterized by comprising a water cannon bag (1), an articulated element (3), a sliding block (4), a floating ball (5), a connecting sleeve (6), a supporting rod (9), a connecting rod (10), a fixed rod (11), a rubber ball (12), a device body (13) and a fixed ring (14);
the lower end of the device body (13) is of a cylindrical structure, the upper end of the device body is provided with a honeycomb water outlet (2), and the lower end of the device body is provided with a water filling port (8); the water cannon bag (1) is sleeved on the honeycomb water outlet (2);
a bell mouth structure is formed at the upper end of the device body (13), and the floating ball (5) is arranged in a space formed by the bell mouth structure at the upper end of the device body (13) and the water cannon bag (1); the aperture of the honeycomb water outlet (2) is larger than that of the water filling port (8), the diameter of the floating ball (5) is between the aperture of the honeycomb water outlet (2) and the aperture of the water filling port (8), and the density of the material of the floating ball (5) is larger than the water density;
the connecting sleeve (6) is sleeved on the outer side of the device body (13), the connecting sleeve (6) is hinged to one end of the connecting rod (10) through the hinge piece (3), the other end of the connecting rod (10) is connected with the supporting rod (9) in a sliding mode through the sliding block (4) sleeved on the supporting rod (9), one end of the supporting rod (9) is fixedly connected with the rubber ball (12), meanwhile, the other end of the supporting rod (9) is hinged to one end of the fixing rod (11) through the hinge piece (3), and the other end of the fixing rod (11) is hinged to the fixing circular ring (14); the support rod (9), the connecting rod (10), the fixing rod (11), the rubber ball (12), the hinge piece (3) and the sliding block (4) form 6 groups of hinge mechanisms which are arranged along the circumference of the connecting sleeve (6) in a central symmetry manner, namely, each group of hinge mechanisms are separated by 60 degrees; the spring buckle (7) is arranged on the connecting sleeve (6).
2. An upward blasthole plugging device according to claim 1, characterized in that the material selected for said water cannon bag (1) is rubber or latex.
3. An upward blasthole plugging device according to claim 1, characterized in that said water injection port (8) is movably connected to the water pipe by means of a stainless steel collar.
4. An upward blasthole plugging device according to claim 1, characterized in that said support rod (9) is made of elastic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887389.6A CN113587759B (en) | 2021-08-03 | 2021-08-03 | Upward blast hole blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110887389.6A CN113587759B (en) | 2021-08-03 | 2021-08-03 | Upward blast hole blocking device |
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| Publication Number | Publication Date |
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| CN113587759A CN113587759A (en) | 2021-11-02 |
| CN113587759B true CN113587759B (en) | 2023-02-03 |
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| CN202110887389.6A Active CN113587759B (en) | 2021-08-03 | 2021-08-03 | Upward blast hole blocking device |
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| CN114739245B (en) * | 2022-04-19 | 2023-06-02 | 辽宁科技大学 | Device for preventing blast hole water from being frozen in alpine region and use method |
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| CN102735125A (en) * | 2012-07-02 | 2012-10-17 | 长沙矿山研究院有限责任公司 | Downward blast hole plugging device and plugging method |
| CN207797906U (en) * | 2018-02-05 | 2018-08-31 | 温州鸿基矿山爆破器材有限公司 | A kind of blocking device of blasting hole |
| CN109115063A (en) * | 2018-07-16 | 2019-01-01 | 山东大学 | A kind of portable pot formula water filling plugging device and method suitable for blasthole filling |
| CN209310656U (en) * | 2018-12-12 | 2019-08-27 | 江西国泰民爆集团股份有限公司 | A kind of convenient multiple-row blasting device |
| CN110715588A (en) * | 2019-10-17 | 2020-01-21 | 北方爆破科技有限公司 | Method for reducing open blasting dust |
| CN110823038A (en) * | 2019-11-25 | 2020-02-21 | 武汉理工大学 | Soft foundation blast hole plugging protection device and method |
| CN212431949U (en) * | 2020-05-11 | 2021-01-29 | 金诚信矿业管理股份有限公司 | Upward quick pre-blanking plug for blast hole |
-
2021
- 2021-08-03 CN CN202110887389.6A patent/CN113587759B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735125A (en) * | 2012-07-02 | 2012-10-17 | 长沙矿山研究院有限责任公司 | Downward blast hole plugging device and plugging method |
| CN207797906U (en) * | 2018-02-05 | 2018-08-31 | 温州鸿基矿山爆破器材有限公司 | A kind of blocking device of blasting hole |
| CN109115063A (en) * | 2018-07-16 | 2019-01-01 | 山东大学 | A kind of portable pot formula water filling plugging device and method suitable for blasthole filling |
| CN209310656U (en) * | 2018-12-12 | 2019-08-27 | 江西国泰民爆集团股份有限公司 | A kind of convenient multiple-row blasting device |
| CN110715588A (en) * | 2019-10-17 | 2020-01-21 | 北方爆破科技有限公司 | Method for reducing open blasting dust |
| CN110823038A (en) * | 2019-11-25 | 2020-02-21 | 武汉理工大学 | Soft foundation blast hole plugging protection device and method |
| CN212431949U (en) * | 2020-05-11 | 2021-01-29 | 金诚信矿业管理股份有限公司 | Upward quick pre-blanking plug for blast hole |
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| CN113587759A (en) | 2021-11-02 |
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Effective date of registration: 20231101 Address after: Room C-1127, 2nd Floor, Building 3, No. 30 Shixing Street, Shijingshan District, Beijing, 100043 (Cluster Registration) Patentee after: Beijing Hui'ance Technology Co.,Ltd. Address before: 430081 No. 947 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee before: WUHAN University OF SCIENCE AND TECHNOLOGY |