CN1170868A - Axial booster tube method for deep hole explosive train blast and booster tube and booster charge stick - Google Patents
Axial booster tube method for deep hole explosive train blast and booster tube and booster charge stick Download PDFInfo
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- CN1170868A CN1170868A CN 97112640 CN97112640A CN1170868A CN 1170868 A CN1170868 A CN 1170868A CN 97112640 CN97112640 CN 97112640 CN 97112640 A CN97112640 A CN 97112640A CN 1170868 A CN1170868 A CN 1170868A
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Abstract
The present invention features that the deep hole explosive train comprises sectional explosive units with booster tube having axial explosion-guiding pipe in between and realized axial boosting of sectional sealing, blocking and relay detonation. It adopts one bendable pipe with one wood stop inserted at one end and one umbrella spacer of safe material in the middle as booster charge stick to realize uncoupled deep-hole booster charge, and this can prevent effectively pipe effect producing extinguishment, residuum and deflagration, reduce suspended mine dust and harmful gas, prevent detonation of explosive gas and raise demolition effect.
Description
The present invention relates to a kind of propagation of explosion method of the deep hole explosive blast in the engineering explosion method, relate in particular to the propagation of explosion method of deep hole continuous charging under the coal mine or deep hole section gap charge explosion.The invention still further relates to employed special-purpose boosting explosive material of this propagation of explosion method and powder charge utensil.
At present, the deep hole explosive explosion that adopt in mine best method generally commonly used is to adopt the propagation of explosion method of primacord side direction propagation of explosion deep hole explosive, but it is subjected to the restriction of security of primacord own and explosion transfer performance, and the general industry primacord can only be used for the working face of non-explosive gas or mineral dust explosion danger; At gassy seam, external the best way is the propagation of explosion method that adopts " super safety " primacord side direction propagation of explosion " super safety " explosive.But though above method propagation of explosion deep hole explosive under given conditions, but applicable elements requires harsh, and there are cost height, powder charge difficulty, almost can't powder charge for tiltedly going up the big gun hole, powder charge is wasted time and energy, and the worker (did to produce in face and the surrounding space thereof toxic gas and the dust and the temperature rise of high-load after the big dose of primacord and deep hole made explosion.Big between the powder stick when powder charge by isolation possibilities such as coal, rock dust or pieces, easily cause propagation of explosion interruption or detonation, residual quick-fried, miss-fire, occur and blow up and not quick-fried primacord sneaks into phenomenon in the rock, be absolutely unsafe, especially the high again security that does not also replace the big dose powder charge of deep hole of the own security of primacord is easy to cause that gas or coal-dust explosion cause the accident.It is also poor to overcome other shortcoming ability.In addition, according to requirement of engineering or when saving dose and uniform powder charge energy and carry out deep hole section gap charge explosion, said method flat hole or on the inclined hole difficulty very big, almost can't realize, also be the easier hidden danger that causes the accident.The better equipment and the powder charge utensil that do not have propagation of explosion simultaneously.
The object of the present invention is to provide the safe, economic of a kind of deep hole continuous charging or deep hole spaced loading explosion and propagation of explosion method easily, and eliminate the detonation interruption, detonation, residual quick-fried and not quick-fried primacord phenomenon occurs of powder charge, the incidence of minimizing accident, and favourablely carry out powder charge.The present invention also aims to provide a kind of booster tube and powder charge tamper of realizing the propagation of explosion method of deep hole explosive explosion, to guarantee the realization of this propagation of explosion method, while is also guaranteed safe and reliable propagation of explosion and convenient, powder charge smoothly, reduces blasting cost and powder charge labour intensity.
Technical scheme of the present invention is achieved in that for the deep hole continuous charging, adopts segmented seal to block unit charge at interval, adorn between the segmenting unit powder charge one fill explosive and tape spool to the special axis of detonator or one section primacord to booster tube; For deep hole spaced loading, except that adopting segmented seal to block the unit charge at interval, also adopt the charge constitution of segmentation waterinfusion blasting, adorn between the section gap powder charge one fill water or blast reducer and have axial detonator or the special axis of one section primacord to booster tube.These two kinds of charge constitutions are to ignite powder stick with last powder stick of last segmentation of booster tube space segmentation, ignite in the powder stick and be placed with detonator, the full stemming of one section envelope of eyelet oral area, also can adopt inverse initiation, can realize the axial propagation of explosion of explosion forward or backwards, the loaded length of its segmentation is decided according to the condition and the purpose of explosion, and the specification of booster tube and length require to determine according to explosion.
The present invention has designed special-purpose booster tube for the axial propagation of explosion of realizing deep hole explosive, special-purpose booster tube divides two kinds of monoblock type or assembleds, the monoblock type booster tube is made up of the cartridge and the middle interval tube at two ends, the propagation of explosion hole less than powder charge letter internal diameter is left in each cartridge housing outer end, and be placed with the sealing pad in the propagation of explosion hole, explosive is housed, in the interval tube between two cartridges water is housed or disappears and fall into agent or water adds blast reducer or explosive, block axially having of circle be placed with detonator or primacord in the guide pipe interval plug and peg graft and form with having again.Dress water or liquid disappear when falling into agent in the tube at interval, have liquid injection hole and stopple at interval beyond the Great Wall; Assembled booster tube and monoblock type booster tube are had any different and partly are opening for the cartridge two ends, no propagation of explosion hole and pad, and barrel shell length is shorter.
The present invention is for realizing the axial propagation of explosion of deep hole explosive, what guarantee powder charge may also design special-purpose tamper with convenience, special-purpose tamper is by polyethylene pipe that is inserted with stopper or plug or flexible tube, and constitute at the thin slice that stopper and mouth of pipe splicing position are lined with a umbrella shape polyethylene or safety-type material, be carved with scale on the long tamper.
Beneficial effect of the present invention is that mainly the axial propagation of explosion of deep hole explosive explosion can realize the section gap sealing powder charge and the segmentation waterinfusion blasting of deep hole explosive, can overcome effectively put out quick-fried, miss-fire, residual quick-fried and detonation, and can flame arrest cooling suppress cause gas, coal-dust explosion; Decking energy controlled blasting effect improves the powder charge capacity usage ratio, and the smoke elimination depositing dust reduces the toxic and harmful content that the big dose charging explosion of primacord and deep hole produces.When adopting primacord side direction propagation of explosion deep hole explosive or adopting shallow blasting, at gaseous mine steep-inclined thick coal seam stope, actual measurement coal dust content reaches 148mg/m after the explosion
3, toxic gas content 126.85L/kg, and the same terms, adopt the inventive method actual measurement to eliminate the suspension situation of coal dust substantially, toxic gas content is 20.69L/kg, and the standard code far below 80L/kg has improved operating condition, favourable workman's physical and mental health, and can realize the section gap charge explosion of deep hole blasting alleviating labor strength, economical with materials, reduce blasting cost, improve per unit area yield and work efficiency.
The special-purpose booster tube of the present invention's design has been realized the axial propagation of explosion method and the above-mentioned functions characteristics thereof of deep hole explosive explosion, implement favourable powder charge than primacord side direction propagation of explosion method, improved powder charge speed and quality, alleviated labour intensity, reduced blasting cost, especially reliable, the safety of propagation of explosion.
The long tamper of special-purpose powder charge of the present invention's design, more in the past than the wooden tamper that is threaded that used, increased to draw and got rock dust and the clear hole function of foreign material and the function that measures blast hole depth and powder charge position in the big gun hole, because tamper is long flexible again, can directly push away powder charge continuously and withdraw from tamper, reduced connecing, unloading the rod operation, greatly saved every hole powder charge time and alleviated hole man's labour intensity, improved loading rate and charging quality.
The axial propagation of explosion method schematic diagram of Fig. 1 deep hole explosive explosion of the present invention.
Fig. 2 booster tube schematic diagram of the present invention
Fig. 3 powder charge tamper of the present invention schematic diagram
Fig. 4 powder charge tamper of the present invention powder charge schematic diagram
Axial propagation of explosion method referring to Fig. 1 deep hole explosive explosion of the present invention: adopt shaping explosive cartridge 1 to carry out the section gap unit charge, adorn the special-purpose booster tube 2 of an axial zone detonator or a bit of primacord between the decking, last powder stick of final stage is for igniting powder stick 3, ignite in the powder stick 3 and be placed with detonator 4, the full length of eyelet oral area envelope is more than or equal to the stemming 5 of 1.0m, can realize the axial propagation of explosion of deep hole forward charge explosion, per minute section loaded length is decided on the condition and the purpose of explosion, be generally less than or equal 1m, when using millisecond delay electric detonator, every round or many rounds once detonation can carry out the ms postpone explosion.
Referring to Fig. 2 booster tube 2 of the present invention: propagation of explosion hole 28 less than cartridge 27 internal diameters is left by two sections outer ends in two ends, and the cartridge 27 that is placed with the tubular shell that explosive is housed of sealing pad 29 in the propagation of explosion hole 28 is formed, by being housed, water 12 usefulness are with interval plug 23 grafting that are placed with detonator 21 in the guide pipe 22 that axially have of the tape jam circle 25 of liquid injection hole 24 and sealing-plug 26 to form between two sections cartridges 27, blocking circle 25 castings forms, its external diameter is slightly larger than big gun hole internal diameter, prevent to skid off the big gun hole during powder charge, play the role of positioning, and segmented seal and segmentation blocking action, can hinder leading compressional wave and help overcoming pipeline and put out the powder charge detonation that quick-fried effect causes and extinguish, detonation product and explosive flame be can stop again and gas or coal-dust explosion helped preventing, make the big dose powder charge of deep hole be equivalent to several shallow bore hole powder charges, thereby help safety.In addition, the reliable propagation of explosion of deep hole lengthening powder charge mainly relies on the relaying detonative action of the detonator 21 interior dress high explosives 20 of booster tube; Water 12 in the booster tube plays the waterinfusion blasting effect, and depositing dust can eliminate smoke; Water and blast reducer can both be lowered the temperature by flame arrest, suppress the blast of gas or coal dust.
Referring to Fig. 3 powder charge tamper of the present invention, referring to Fig. 4 powder charge tamper 30 powder charge schematic diagrames: the medicine end is inserted stopper to powder charge tamper 30 or rubber stopper 31 is filled in flexible polyethylene pipe 32 by pushing away, and be lined with a umbrella shape polyethylene sheets 33 at stopper 31 and flexible tube 32 splicing positions and constitute, be carved with scale 34 on the flexible long tube, be used for measuring hole depth and loaded length, the position, during powder charge, the termination contact explosive cartridge 1 of stopper or rubber stopper 31, umbrella shape polyethylene sheets 33 can be used to draw out rock dust or foreign material in the big gun hole, play the effect of clear hole, polyethylene flexible tube 32 can be used to push explosive cartridge 1 or booster tube 2 and is encased in the big gun hole 37 parallel with working face 38 in the tunnel 39 that supporting is arranged.
Claims (8)
1, the axial propagation of explosion method of deep hole explosive explosion is characterized in that: the booster tube of axial zone detonator or one section primacord is housed between the deep hole explosive explosion decking, can realizes the method for the axial propagation of explosion of deep hole spaced loading or deep hole continuous charging.
2, a kind of booster tube is characterized in that: booster tube axial zone detonator or one section primacord.
3, a kind of powder charge tamper is characterized in that: flexible long tube one end is inserted with stopper or rubber stopper, and is lined with a umbrella shape safety-type material sheet at stopper and pipe end splicing position, and pipe shaft is carved with the scale that measures hole depth and powder charge position.
4, the axial propagation of explosion method of a kind of deep hole explosive explosion according to claim 1 is characterized in that: fill water in the booster tube or disappear and fall into agent or water adds blast reducer or explosive.
5, the axial propagation of explosion method of a kind of deep hole explosive explosion according to claim 1, its feature also is: the segmented seal that can realize deep hole explosive blocks, relaying detonates and the axial propagation of explosion of segmentation water seal, flame arrest cooling, but and can the forward powder charge also inverse initiation.
6, a kind of booster tube according to claim 2, it is characterized in that: propagation of explosion hole (28) less than cartridge (27) internal diameter is left by two sections outer ends in two ends. and be placed with the cartridge (27) of the tubular shell that explosive is housed of sealing pad (29) in propagation of explosion hole (28), between two sections cartridges (27) by water (12) axially having or not having guide pipe (22) and having axial detonator (21) or the interval of one section primacord (21) plug (23) grafting forms with the tape jam circle (25) of band liquid injection hole (24) and sealing-plug (26) is housed.
7, a kind of booster tube according to claim 6, it is characterized in that: casting is radially obstruction circle (25) whole or that be with on the external diameter of inner or other position of plug (23) or cartridge (27) at interval, and its external diameter equals or is slightly larger than big gun hole internal diameter.
8, a kind of booster tube according to claim 6, it is characterized in that: the booster tube central shaft is to being equipped with detonator (21) or the primacord (21) of adorning high explosive (20) in one section, and its degree of depth that is inserted into the interior explosive of cartridge (27) is generally more than or equal to 20mm and smaller or equal to 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112640 CN1170868A (en) | 1997-06-20 | 1997-06-20 | Axial booster tube method for deep hole explosive train blast and booster tube and booster charge stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112640 CN1170868A (en) | 1997-06-20 | 1997-06-20 | Axial booster tube method for deep hole explosive train blast and booster tube and booster charge stick |
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| Publication Number | Publication Date |
|---|---|
| CN1170868A true CN1170868A (en) | 1998-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97112640 Pending CN1170868A (en) | 1997-06-20 | 1997-06-20 | Axial booster tube method for deep hole explosive train blast and booster tube and booster charge stick |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871755A (en) * | 2010-06-21 | 2010-10-27 | 北京理工大学 | Multipoint excitation-volume seismic focus charging structure |
| CN102155890A (en) * | 2011-01-24 | 2011-08-17 | 平顶山天安煤业股份有限公司十矿 | Filling method used in deep hole loosening blasting pressure release |
| CN102603443A (en) * | 2012-03-08 | 2012-07-25 | 山东黄金矿业股份有限公司新城金矿 | Improved mining rock explosive cartridge and preparation method thereof |
| CN102749001A (en) * | 2012-07-14 | 2012-10-24 | 薛世忠 | Method for filling blast holes |
| CN102878878A (en) * | 2012-10-28 | 2013-01-16 | 祝云辉 | Layered explosive charging packing device for blasting |
| CN103161493A (en) * | 2013-04-10 | 2013-06-19 | 中国矿业大学 | Gas-liquid-solid three-phase coupling blasting weakening rock burst and permeability increasing method |
| CN105509582A (en) * | 2015-12-15 | 2016-04-20 | 中国矿业大学 | Long-distance inclined blasting drill hole charging device and method |
| CN114353609A (en) * | 2021-12-21 | 2022-04-15 | 湖北工业大学 | Structure and method for sectionally charging downward blast hole |
-
1997
- 1997-06-20 CN CN 97112640 patent/CN1170868A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871755A (en) * | 2010-06-21 | 2010-10-27 | 北京理工大学 | Multipoint excitation-volume seismic focus charging structure |
| CN102155890A (en) * | 2011-01-24 | 2011-08-17 | 平顶山天安煤业股份有限公司十矿 | Filling method used in deep hole loosening blasting pressure release |
| CN102603443A (en) * | 2012-03-08 | 2012-07-25 | 山东黄金矿业股份有限公司新城金矿 | Improved mining rock explosive cartridge and preparation method thereof |
| CN102603443B (en) * | 2012-03-08 | 2013-12-18 | 山东黄金矿业股份有限公司新城金矿 | Improved mining rock explosive cartridge and preparation method thereof |
| CN102749001A (en) * | 2012-07-14 | 2012-10-24 | 薛世忠 | Method for filling blast holes |
| CN102878878A (en) * | 2012-10-28 | 2013-01-16 | 祝云辉 | Layered explosive charging packing device for blasting |
| CN103161493A (en) * | 2013-04-10 | 2013-06-19 | 中国矿业大学 | Gas-liquid-solid three-phase coupling blasting weakening rock burst and permeability increasing method |
| CN105509582A (en) * | 2015-12-15 | 2016-04-20 | 中国矿业大学 | Long-distance inclined blasting drill hole charging device and method |
| CN105509582B (en) * | 2015-12-15 | 2018-01-12 | 中国矿业大学 | It is a kind of to tilt blasting boreholes means for loading and method over long distances |
| CN114353609A (en) * | 2021-12-21 | 2022-04-15 | 湖北工业大学 | Structure and method for sectionally charging downward blast hole |
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