CN114199091A - Detonation cartridge device for upward medium-length hole and charge construction method - Google Patents
Detonation cartridge device for upward medium-length hole and charge construction method Download PDFInfo
- Publication number
- CN114199091A CN114199091A CN202111519666.4A CN202111519666A CN114199091A CN 114199091 A CN114199091 A CN 114199091A CN 202111519666 A CN202111519666 A CN 202111519666A CN 114199091 A CN114199091 A CN 114199091A
- Authority
- CN
- China
- Prior art keywords
- explosive
- cartridge device
- initiating
- charging
- hole
- 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.)
- Pending
Links
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Abstract
The invention discloses an initiation cartridge device for an upward medium-length hole and a charging construction method, and belongs to the technical field of design and manufacture of mining process equipment. The detonation cartridge device for the upward medium-length hole and the construction method for charging the detonation cartridge device can effectively prevent the detonator from being influenced by adverse factors such as static electricity and impact. The initiating explosive cartridge device comprises an initiating explosive detonator, and further comprises an explosive charging cylinder body and initiating explosive, wherein an opening is formed in the explosive charging cylinder body, the initiating explosive detonator and the initiating explosive are both arranged in the explosive charging cylinder body, and a conducting wire of the initiating explosive detonator extends out of the explosive charging cylinder body from the opening. The construction method comprises the steps of filling the initiating explosive and the initiating detonator into a charging barrel body, packaging and fixing, inserting a supporting connector into a discharging end of a charging pipe, then sending the initiating explosive cartridge device into the top of the blasthole through the charging pipe and fixing, and continuously sending the explosive into the blasthole through the charging pipe until the explosive in the whole blasthole is filled.
Description
Technical Field
The invention relates to an initiation cartridge case device, in particular to an initiation cartridge case device for an upward medium-length hole, and belongs to the technical field of design and manufacture of mining process equipment. The invention also relates to a construction method for charging the upward medium-length hole by adopting the initiating explosive cartridge device.
Background
The underground mining widely adopts a sill-pillar-free caving method, and the work load of upward medium-length hole blasting is large. The energy released by the hole bottom detonation relative to the detonation of the orifice detonation explosive can be more fully utilized, the blasting effect is obviously superior to that of the orifice detonation, and the hole bottom detonation has excellent effects such as large block rate, explosive unit consumption reduction amount, air shock wave reduction rate and the like. During the actual construction process, when the deep hole is compressed and charged with air, the electrostatic field generated by the high-speed motion of the powder relative to the powder conveying pipe and the strong impact of the powder flow in the hole limit the use of the hole bottom detonation method.
At present, an orifice detonating method of pulling an detonating cord from the bottom of a hole to an orifice and detonating a explosive package at the orifice is commonly adopted for medium-length holes in underground mines.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the detonation cartridge device for the upward medium-length hole can effectively prevent the detonator from being influenced by adverse factors such as static electricity and impact. The invention also relates to a construction method for charging the upward medium-length hole by adopting the initiating explosive cartridge device.
The technical scheme adopted for solving the technical problems is as follows: the initiating explosive cartridge device comprises an initiating detonator, and further comprises an explosive charging cylinder body and initiating explosive, wherein an opening is formed in the explosive charging cylinder body, the initiating detonator and the initiating explosive are both arranged in the explosive charging cylinder body, and a conducting wire of the initiating detonator extends out of the explosive charging cylinder body from the opening.
Further, the lower end of the charging barrel is also provided with a supporting connector, and the shape of the supporting connector is adapted to the inner cavity of the end part of the external charging pipe.
The preferable mode of the scheme is that the medicine charging barrel is a cylindrical soft bag, the upper end of the cylindrical soft bag is provided with a closable opening, a supporting connector connected with the end part of an external medicine charging pipe is arranged at the lower end of the cylindrical soft bag, and the opening is arranged on the side wall of the cylindrical soft bag.
Furthermore, the supporting connector arranged at the lower end of the cylindrical soft bag is a cavity integrally formed with the cylindrical soft bag or a homogeneous rod integrally formed with the cylindrical soft bag.
In a preferable mode of the above scheme, the charging barrel body comprises a hard cylinder and a closing component, at least the hard cylinder is provided with a notch, the open end of the hard cylinder is sealed by the closing component, and a supporting connector connected with the end of an external charging pipe is arranged at one end of the hard cylinder or the closing component.
Further, the sealing assembly comprises a cap top and a cap bottom, two open ends of the hard cylinder are respectively sealed by the cap top and the cap bottom, and the supporting connector is arranged on the outer side of the cap bottom.
In a preferred mode of the above scheme, the notch is arranged at the lower end of the side wall of the hard cylinder, and the corresponding part of the cap bottom is also provided with the notch.
Furthermore, the hard cylinder, the cap top and the cap bottom are all made of PVC materials.
The construction method for charging the upward medium-length hole by adopting the priming cartridge device comprises the following steps,
1) the initiating explosive and the initiating detonator are packed and fixed in the explosive charging cylinder body, so that the conducting wire of the initiating detonator extends out of the explosive charging cylinder body from the opening to complete the filling of the initiating explosive cartridge device,
2) inserting the supporting connector into the explosive outlet end of the explosive charging pipe, then sending the initiation cartridge device into the top of the borehole through the explosive charging pipe, separating the initiation cartridge device from the explosive charging pipe through the explosive sent out from the explosive charging pipe and fixing the initiation cartridge device on the top of the borehole,
3) and continuously sending the explosive into the blast hole through the explosive loading pipe until the loading of the explosive in the whole blast hole is finished.
Further, when the detonation cartridge device is fixed by filling a gap between the detonation cartridge device and the blast hole with explosives, the pressure of the explosive output by the explosive charging pipe is smaller than the pressure of the explosives filled in other parts.
The invention has the beneficial effects that: the technical scheme that this application provided is through setting up the initiating explosive cartridge case device of a powder charge barrel and initiating explosive to set up the opening on the powder charge barrel, then will initiating explosive detonator with initiating explosive equipartition arrange the powder charge barrel in, and make the conducting wire of initiating explosive detonator stretch out the powder charge barrel from opening department. And when going on to the medium-length hole powder charge, insert the play medicine end of charge pipe with the supporting connection head of initiating explosive cartridge device, then send into big gun hole top and make initiating explosive cartridge device and charge pipe separation and fix at big gun hole top through the explosive that the charge pipe sent out with initiating explosive cartridge device through the charge pipe, continue to send out the explosive through the charge pipe in to the big gun hole at last until accomplishing the loading of the downthehole explosive of whole big gun hole. Therefore, the detonator is covered by the initiating explosive and protected by the explosive charging cylinder, so that the detonation caused by the influence of factors such as static electricity, impact and the like can be effectively prevented. The purpose of simply and rapidly sending the medium-length hole detonating tube to the preset position in the hole and ensuring the stability and the non-gliding and non-shifting of the detonating cartridge bag is achieved. Meanwhile, the initiating explosive bag is manufactured outside the hole, so that the requirement on the compactness of the initiating explosive is met, and the initiating effect is good; compared with detonating cord detonating, the detonating cord is saved by adopting detonator detonating, and good economic benefit is obtained.
Drawings
Fig. 1 is a schematic structural view of the priming cartridge device for the upward medium-length hole of the present invention.
Labeled as: the explosive charging device comprises an initiating detonator 1, a charging barrel 2, initiating explosive 3, a notch 4, a supporting connector 5, a hard cylinder 6, a sealing component 7, a cap top 8, a cap bottom 9, a charging pipe 10 and a blast hole 11.
Detailed Description
Fig. 1 shows an initiation cartridge device for an upward medium-length hole, which can effectively prevent a detonator from being affected by adverse factors such as static electricity and impact, and a construction method for charging the upward medium-length hole by using the initiation cartridge device. The initiating explosive cartridge device comprises an initiating detonator 1, and further comprises an explosive charging cylinder body 2 and initiating explosive 3, wherein an opening 4 is formed in the explosive charging cylinder body 2, the initiating detonator 1 and the initiating explosive 3 are both arranged in the explosive charging cylinder body 2, and a conducting wire of the initiating detonator 1 extends out of the explosive charging cylinder body 2 from the opening 4. The construction method comprises the following steps of 1) filling initiating explosive and initiating detonators into a explosive filling cylinder body, packaging and fixing the initiating explosive and the initiating detonators, enabling conducting wires of the initiating detonators to extend out of the explosive filling cylinder body from gaps to complete filling of an initiating explosive cartridge device, 2) inserting a supporting connector into an explosive outlet end of an explosive filling pipe 10, then sending the initiating explosive cartridge device into the top of a blast hole through the explosive filling pipe 10, enabling the initiating explosive cartridge device to be separated from the explosive filling pipe 10 through explosive sent out from the explosive filling pipe 10 and fixing the initiating explosive cartridge device on the top of the blast hole, and 3) continuously sending the explosive into the blast hole through the explosive filling pipe 10 until filling of the explosive in the whole blast hole is completed. The technical scheme that this application provided is through setting up the initiating explosive cartridge case device of a powder charge barrel and initiating explosive to set up the opening on the powder charge barrel, then will initiating explosive detonator with initiating explosive equipartition arrange the powder charge barrel in, and make the conducting wire of initiating explosive detonator stretch out the powder charge barrel from opening department. And when going on to the medium-length hole powder charge, insert the play medicine end of powder charge pipe 10 with the supporting connection head of initiating explosive cartridge device, then send initiating explosive cartridge device into big gun hole top and make initiating explosive cartridge device and powder charge pipe 10 separate and fix at big gun hole top through the explosive that powder charge pipe 10 sent out through powder charge pipe 10, continue to send out the explosive through powder charge pipe 10 in the big gun hole 11 until accomplishing the loading of the downthehole explosive of whole big gun hole 11. Therefore, the detonator is covered by the initiating explosive and protected by the explosive charging cylinder, so that the detonation caused by the influence of factors such as static electricity, impact and the like can be effectively prevented. The purpose of simply and rapidly sending the medium-length hole detonating tube to the preset position in the hole and ensuring the stability and the non-gliding and non-shifting of the detonating cartridge bag is achieved. Meanwhile, the initiating explosive bag is manufactured outside the hole, so that the requirement on the compactness of the initiating explosive is met, and the initiating effect is good; compared with detonating cord detonating, the detonating cord is saved by adopting detonator detonating, and good economic benefit is obtained.
In the above embodiment, in order to facilitate the connection with the external cartridge tube 10 and ensure reliable connection when the detonation cartridge device is fed into the top, the lower end of the cartridge container body 2 is further provided with the support connector 5, and the shape of the support connector 5 is adapted to the inner cavity of the end part of the external cartridge tube. At the moment, the medicine charging barrel body 2 can have the following two structures, one structure is that the medicine charging barrel body 2 is a cylindrical soft bag, the upper end of the cylindrical soft bag is provided with a closable opening, a supporting connector 5 connected with the end part of an external medicine charging pipe is arranged at the lower end of the cylindrical soft bag, and the opening 4 is arranged on the side wall of the cylindrical soft bag. Correspondingly, the supporting connector 5 arranged at the lower end of the cylindrical soft bag is a cavity integrally formed with the cylindrical soft bag or a homogeneous rod integrally formed with the cylindrical soft bag. The other is that the charging cylinder 2 comprises a hard cylinder 6 and a closing component 7, at least the hard cylinder 6 is provided with a notch 4, the open end of the hard cylinder 6 is sealed by the closing component 7, and a supporting connector 5 connected with the end of an external charging pipe is arranged at one end of the hard cylinder 6 or the closing component 7. At this time, the closing assembly 7 includes a cap top 8 and a cap bottom 9, both open ends of the hard cylinder 6 are closed by the cap top 8 and the cap bottom 9, respectively, and the support connector 5 is disposed outside the cap bottom 9. Meanwhile, the notch 4 is arranged at the lower end of the side wall of the hard cylinder, and the corresponding part of the cap bottom 9 is also provided with the notch 4. Further, according to actual conditions, the hard cylinder 6, the cap top 8 and the cap bottom 9 are all made of PVC materials.
Accordingly, when the priming cartridge device is fixed by filling the gap between the priming cartridge device and the hole of the blasthole 11 with the explosive, the pressure of the explosive output from the charging tube 10 is lower than the pressure of the explosive output from the other parts.
In conclusion, the device and the construction method provided by the application overcome the defects of a charging process and an orifice detonation in the traditional method, and have the advantages of saving blasting cost by adopting detonator detonation and the like.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention aims to provide a method for constructing conveniently and quickly. The specific contents are as follows: the method is characterized in that a phi 50PVC pipe is adopted to manufacture an initiating explosive cylinder body with the length of 200cm, a top cap is arranged at the upper part of the cylinder body, a bottom cap is arranged at the lower part of the cylinder body, a lead opening is arranged at one side of the cylinder body, initiating explosive and initiating detonators are arranged in the PVC pipe, a detonator conducting wire is led out through the lead opening, after the initiating explosive is filled, a loading pipe is sleeved at the tail end of the bottom cap and lightly conveyed to an orifice to reach the bottom of a hole, the explosive starts to be fed after the completion of the loading of the initiating explosive, the initiating explosive cylinder body is pushed out through the explosive feeding pressure, the pressure is continuously applied, and the explosive fills the outer gap of the cylinder body, so that the efficient, stable and quick explosive loading process is realized.
Example one
1) Manufacturing a primary explosive cartridge body device;
2) according to the requirement of blasting design, placing the blasting cap in the initiating explosive, and filling the cylinder body with the initiating explosive to be compact;
3) the detonation conducting wire is led out through the barrel conducting wire notch (the conducting wire notch is manufactured to be smooth and have no burr, so that the lead is prevented from being damaged);
4) mounting and screwing a top cap and a bottom cap;
5) sleeving the bottom cap in the powder charging pipe (the bottom cap is not too tight during sleeving so as to avoid the problem that the bottom cap cannot be pushed out during charging), conveying the bottom cap to the hole opening, and slightly pushing the bottom cap to the bottom of the hole;
6) after the primary explosive barrel reaches the bottom of the hole, charging is started, and the barrel is separated from the charging pipe through the thrust of the explosive to the bottom cap;
7) continuing charging to stabilize the detonation cartridge at the bottom of the hole and filling an external gap with explosive;
8) and finishing charging.
Claims (10)
1. An initiation cartridge device for an upward medium-length hole, comprising an initiation detonator (1), characterized in that: the initiating explosive cartridge device further comprises an explosive charging cylinder body (2) and initiating explosive (3), wherein a notch (4) is formed in the explosive charging cylinder body (2), the initiating detonator (1) and the initiating explosive (3) are uniformly arranged in the explosive charging cylinder body (2), and a conducting wire of the initiating detonator (1) extends out of the explosive charging cylinder body (2) from the notch (4).
2. The priming cartridge device for an upward medium-length hole of claim 1, wherein: the lower end of the charging barrel body (2) is also provided with a supporting connector (5), and the shape of the supporting connector (5) is adapted to the inner cavity of the end part of the external charging pipe.
3. The priming cartridge device for upward medium-length wells according to claim 1 or 2, wherein: the medicine charging barrel body (2) is a cylindrical soft bag, the upper end of the cylindrical soft bag is provided with a closable opening, a supporting connector (5) connected with the end part of an external medicine charging pipe is arranged at the lower end of the cylindrical soft bag, and the opening (4) is arranged on the side wall of the cylindrical soft bag.
4. The priming cartridge device for an upward medium-length hole of claim 3, wherein: the supporting connector (5) arranged at the lower end of the cylindrical soft bag is a cavity integrally formed with the cylindrical soft bag or a homogeneous rod integrally formed with the cylindrical soft bag.
5. The priming cartridge device for upward medium-length wells according to claim 1 or 2, wherein: the powder charging barrel body (2) comprises a hard cylinder (6) and a sealing assembly (7), at least the hard cylinder (6) is provided with a notch (4), the open end of the hard cylinder (6) is sealed by the sealing assembly (7), and a supporting connector (5) connected with the end of an external powder charging pipe is arranged at one end of the hard cylinder (6) or the sealing assembly (7).
6. The priming cartridge device for an upward medium-length hole of claim 5, wherein: the sealing assembly (7) comprises a cap top (8) and a cap bottom (9), two open ends of the hard cylinder (6) are respectively sealed through the cap top (8) and the cap bottom (9), and the supporting connecting head (5) is arranged on the outer side of the cap bottom (9).
7. The priming cartridge device for an upward medium-length hole of claim 6, wherein: the opening (4) is arranged at the lower end of the side wall of the hard cylinder, and the opening (4) is also arranged at the corresponding part of the cap bottom (9).
8. The priming cartridge device for an upward medium-length hole of claim 7, wherein: the hard cylinder (6), the cap top (8) and the cap bottom (9) are all made of PVC materials.
9. A method of loading upwardly directed recesses using the priming cartridge assembly of claim 8, wherein: the construction method comprises the following steps of,
1) the initiating explosive and the initiating detonator are packed and fixed in the explosive charging cylinder body, so that the conducting wire of the initiating detonator extends out of the explosive charging cylinder body from the opening to complete the filling of the initiating explosive cartridge device,
2) inserting the supporting connector into the explosive outlet end of the explosive charging pipe, then sending the initiating explosive cartridge device into the top of the explosive hole through the explosive charging pipe, separating the initiating explosive cartridge device from the explosive charging pipe through the explosive sent out by the explosive charging pipe and fixing the initiating explosive cartridge device on the top of the explosive hole,
3) and continuously sending the explosive into the blasting hole through the explosive loading pipe until the explosive in the whole blasting hole is completely loaded.
10. The construction method according to claim 9, wherein: when the detonation cartridge device is fixed through a gap between the detonation cartridge device and the blast hole filled with the explosives, the pressure of the explosives output by the explosive loading tube is smaller than the output pressure of the explosives filled in other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111519666.4A CN114199091A (en) | 2021-12-13 | 2021-12-13 | Detonation cartridge device for upward medium-length hole and charge construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111519666.4A CN114199091A (en) | 2021-12-13 | 2021-12-13 | Detonation cartridge device for upward medium-length hole and charge construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114199091A true CN114199091A (en) | 2022-03-18 |
Family
ID=80653074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111519666.4A Pending CN114199091A (en) | 2021-12-13 | 2021-12-13 | Detonation cartridge device for upward medium-length hole and charge construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114199091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777592A (en) * | 2022-03-23 | 2022-07-22 | 中铁广州工程局集团有限公司 | Be applied to automatic protection charging means of tunnel blasting construction usefulness |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3170366A (en) * | 1960-12-22 | 1965-02-23 | Nitroglycerin Ab | Device for filling bore-holes formed in rock formation with particulate explosive |
| CN101634540A (en) * | 2008-07-22 | 2010-01-27 | 鞍钢集团矿业公司 | Process for alternately detonating bottom of upward deep hole of underground mine and alternate bottom detonation tool |
| CN102047069A (en) * | 2008-06-05 | 2011-05-04 | 马克萨姆丹特克斯南非(私人)有限公司 | Method and apparatus for charging an upwardly oriented hole with a pumpable material |
| CN203454927U (en) * | 2013-08-27 | 2014-02-26 | 武汉钢铁(集团)公司 | Medium-length hole bottom priming device |
| JP2015145753A (en) * | 2014-02-03 | 2015-08-13 | 株式会社アンカー | explosive loading bag |
| CN107289826A (en) * | 2016-03-30 | 2017-10-24 | 南京梅山冶金发展有限公司 | Explosion bulge test device and blasting method |
| CN108132005A (en) * | 2017-12-07 | 2018-06-08 | 长春黄金研究院 | A kind of method of short-delay blasting in medium-length hole upward hole |
| CN108302984A (en) * | 2018-05-09 | 2018-07-20 | 山西惠丰特种汽车有限公司 | Needle-shaped support primer arrangement for static sensitizing device end |
| CN108895934A (en) * | 2018-07-27 | 2018-11-27 | 中国矿业大学 | A kind of deep hole standing shot blasting charge method and device |
| CN109000517A (en) * | 2018-07-27 | 2018-12-14 | 中国矿业大学 | A kind of explosive cartridge of deep hole blasting |
| CN210464241U (en) * | 2019-07-18 | 2020-05-05 | 四川华蓥山龙滩煤电有限责任公司 | Coal mine deep hole presplitting blasting powder feeding pipe withdrawing device |
| CN210625490U (en) * | 2019-10-28 | 2020-05-26 | 山西金恒爆破工程有限责任公司 | Charging device for rock blasting |
| CN111366053A (en) * | 2020-05-13 | 2020-07-03 | 东北大学 | Device and method for preventing bulk explosive from falling back in upward blast hole |
| CN112815797A (en) * | 2021-02-03 | 2021-05-18 | 福建安顺工程爆破有限公司 | Automatic explosive-charging safe detonation device and method for field mixed explosives |
| CN215064140U (en) * | 2021-04-25 | 2021-12-07 | 马鞍山江南化工有限责任公司 | Water-proof device for blast hole compressed air charging |
-
2021
- 2021-12-13 CN CN202111519666.4A patent/CN114199091A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3170366A (en) * | 1960-12-22 | 1965-02-23 | Nitroglycerin Ab | Device for filling bore-holes formed in rock formation with particulate explosive |
| CN102047069A (en) * | 2008-06-05 | 2011-05-04 | 马克萨姆丹特克斯南非(私人)有限公司 | Method and apparatus for charging an upwardly oriented hole with a pumpable material |
| CN101634540A (en) * | 2008-07-22 | 2010-01-27 | 鞍钢集团矿业公司 | Process for alternately detonating bottom of upward deep hole of underground mine and alternate bottom detonation tool |
| CN203454927U (en) * | 2013-08-27 | 2014-02-26 | 武汉钢铁(集团)公司 | Medium-length hole bottom priming device |
| JP2015145753A (en) * | 2014-02-03 | 2015-08-13 | 株式会社アンカー | explosive loading bag |
| CN107289826A (en) * | 2016-03-30 | 2017-10-24 | 南京梅山冶金发展有限公司 | Explosion bulge test device and blasting method |
| CN108132005A (en) * | 2017-12-07 | 2018-06-08 | 长春黄金研究院 | A kind of method of short-delay blasting in medium-length hole upward hole |
| CN108302984A (en) * | 2018-05-09 | 2018-07-20 | 山西惠丰特种汽车有限公司 | Needle-shaped support primer arrangement for static sensitizing device end |
| CN108895934A (en) * | 2018-07-27 | 2018-11-27 | 中国矿业大学 | A kind of deep hole standing shot blasting charge method and device |
| CN109000517A (en) * | 2018-07-27 | 2018-12-14 | 中国矿业大学 | A kind of explosive cartridge of deep hole blasting |
| CN210464241U (en) * | 2019-07-18 | 2020-05-05 | 四川华蓥山龙滩煤电有限责任公司 | Coal mine deep hole presplitting blasting powder feeding pipe withdrawing device |
| CN210625490U (en) * | 2019-10-28 | 2020-05-26 | 山西金恒爆破工程有限责任公司 | Charging device for rock blasting |
| CN111366053A (en) * | 2020-05-13 | 2020-07-03 | 东北大学 | Device and method for preventing bulk explosive from falling back in upward blast hole |
| CN112815797A (en) * | 2021-02-03 | 2021-05-18 | 福建安顺工程爆破有限公司 | Automatic explosive-charging safe detonation device and method for field mixed explosives |
| CN215064140U (en) * | 2021-04-25 | 2021-12-07 | 马鞍山江南化工有限责任公司 | Water-proof device for blast hole compressed air charging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777592A (en) * | 2022-03-23 | 2022-07-22 | 中铁广州工程局集团有限公司 | Be applied to automatic protection charging means of tunnel blasting construction usefulness |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4253523A (en) | Method and apparatus for well perforation and fracturing operations | |
| US7565857B2 (en) | Method of charging a container with an energetic material | |
| CN114199091A (en) | Detonation cartridge device for upward medium-length hole and charge construction method | |
| CN105444633A (en) | Bench blasting charge structure capable of reducing block rate of blast hole blocking section | |
| CN102914227A (en) | Construction method of novel explosive loading structure of mixed loading explosive truck | |
| CN201159620Y (en) | Deep borehole blasting cartridge | |
| US3063373A (en) | Method of blasting | |
| CA1239550A (en) | Method for charging flowable explosives into upwardly extending boreholes | |
| CN109696099B (en) | Special multifunctional water bag for green mine blasting | |
| CN113654425A (en) | Multifunctional blast hole filling mechanism suitable for finished product packaged emulsion explosive | |
| AU2011237288B2 (en) | A rock breaking product | |
| RU2481552C2 (en) | Device, charging device and method for well charging by explosive substance | |
| CN101634540A (en) | Process for alternately detonating bottom of upward deep hole of underground mine and alternate bottom detonation tool | |
| US4036100A (en) | Apparatus and method for loading fluent explosives in upwardly extending boreholes | |
| CN110579145A (en) | Charging method for blasting of sector hole of underground mine | |
| CN214173130U (en) | Detonating tool for viscous explosive | |
| JP2001050700A (en) | Explosives charger and charging method | |
| WO2001004563A1 (en) | Primer casing and method of charging a blasthole | |
| CN216593019U (en) | Packing cartridge case for explosive loading of blasting engineering | |
| CN218270418U (en) | Novel rich water big gun hole loaded constitution | |
| CN209326482U (en) | Igniting primer in a kind of large diameter, deep borehole hole | |
| CN104863551B (en) | A kind of two-way detonating primer of Oil/gas Well superhigh temperature | |
| CN112815797A (en) | Automatic explosive-charging safe detonation device and method for field mixed explosives | |
| CN201715956U (en) | Ditch detonator | |
| CN216869354U (en) | Upward medium-length hole non-coupling charging structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |