CN102944147A - Waterpower pressurization blasting method - Google Patents
Waterpower pressurization blasting method Download PDFInfo
- Publication number
- CN102944147A CN102944147A CN201210463589XA CN201210463589A CN102944147A CN 102944147 A CN102944147 A CN 102944147A CN 201210463589X A CN201210463589X A CN 201210463589XA CN 201210463589 A CN201210463589 A CN 201210463589A CN 102944147 A CN102944147 A CN 102944147A
- Authority
- CN
- China
- Prior art keywords
- water
- main explosive
- blasting
- bag
- big gun
- 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.)
- Granted
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000002360 explosive Substances 0.000 claims abstract description 41
- 230000000977 initiatory effect Effects 0.000 claims description 14
- 239000002775 capsule Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000011435 rock Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Abstract
The invention discloses a waterpower pressurization blasting method. A water bag (3) is arranged in the upper part of a main explosive (1), a preset amount of water is injected into the water bag (3) to form a waterspout (4), a leading compressive powder bag (6) is arranged in the upper part of the waterspout (4), and rock scraps (4) is stuffed in the upper part of the water bag (3). Detonating tube detonators of different sections are distributed in the main explosive (1) and the leading compressive powder bag (5). Two different sections of main explosive detonating tubes (2) are arranged in the main explosive (1), and a leading compressive powder bag detonating tube (5) is arranged in the leading compressive powder bag (6). The leading compressive powder bag detonating tube (5) is detonated at least 25ms before the main explosive detonating tube (2). According to the method, the waterspout is utilized to effectively transmit energy, the method has the advantages of a low rate in large blocks, little dust, convenience in operation, safety and reliability, is particularly suitable for blasting in production of a large-scale open-air mine, in the underground deep hole of a downward hole blasting, and in projects of other non-mine fields.
Description
Technical field
The present invention relates to a kind of blasting method, especially relate to a kind of major diameter shot hole blasting method of surface mine.Be applicable to surface mine, lower to the underground mine explosion of hole explosion and the engineering explosion in other fields, non-mine, realize reducing boulder yield, the raising shovel fills efficient and reduces production costs.
Background technology
In the deep hole blasting, what everybody generally was concerned about is the mine fragmentation quality in the open, because it is the important indicator that directly affects mining cost.Although at present because the updating and upgrade of blasting technique and explosive, the fragmentation quality of many mines rock blasting improves, but the fragmentation quality of ore deposit, step top rock is still relatively poor, and this also is surface mine higher one of the main reasons of boulder yield in the production explosion.
Bench blasting is owing to will keep enough stemming lengths, bench blasting for the 12m height, general stemming length 5-6m, this has just caused step first half big gun hole not load explosive, and explosive all focuses on the Lower Half step, thereby cause step the latter half fine ore rate higher, and the more situation of step first half bulk has increased the mine boulder yield.The boulder yield increase certainly will affect the costs such as shovel dress, transportation and coarse crushing, therefore, how to improve the fragmentation quality of ore deposit, step top rock, and the boulder yield that reduces in the production explosion is the difficult problem that solution is badly in need of in many mines.
In order to reduce explosion bulk grain, Chinese patent application 201110379239.0 discloses a kind of depth hole in conjunction with the bench blasting method that reduces the explosion boulder yield, it may further comprise the steps: (1) presses triangle or quincunx pattern at quick-fried district step, according to surface longhole bench blasting design with require the Drilling deep blasting hole, namely get deep hole; (2) in the shallow big gun hole of boring an aperture Φ≤50mm with the center position between per two the described deep holes of row, namely get shallow bore hole; (3) described deep hole and described shallow bore hole are carried out respectively powder charge, and lay igniting primer, carry out the aperture of described deep hole and described shallow bore hole and stop up; (4) arrange by the firing order in the designing requirement between the order millisecond detonating, onepull gets final product.This patent application has solved Long-hole Bench Blasting and has stopped up the high problem of section boulder yield, but will distinguish Drilling deep blasting hole, shallow big gun hole, complex manufacturing, and operation inconvenience, production efficiency is low, and exists the problem such as dust pollution.
Summary of the invention
For reducing step top boulder yield, improve shovel dress efficient, the invention provides a kind of hydraulic booster blasting method, have the advantages that boulder yield is low, dust is low, easy to operate, safe and reliable, particularly suitable large surface mine production explosion.
For realizing above-mentioned purpose of the present invention, a kind of hydraulic booster blasting method of the present invention adopts following technological process to carry out:
1) by the dose of in advance design with pack into the bottom in continuous big gun hole of main explosive, simultaneously with main explosive initiation detonator also with pack into the bottom in big gun hole of main explosive.
It is good that the quantity of described main explosive initiation detonator is 2, and the two is with section not.
2) water bag is connected water pipe put into the main explosive in big gun hole above, water bag is formed water column by the water yield water filling of in advance design, then water pipe is extracted out.
Water-column can be according to the initial detonation pressure of explosive, the water column initial pressure, and consider that propagation law calculates in the rock mass.For blasthole diameter be 200mm～250mm, when hole depth is the 12m left and right sides, water-column is controlled at about 2.5～4m, gets the small value during hard rock, gets large value during soft rock.
3) will compress in advance the cartridge bag detonating capsule and insert in the leading compression cartridge bag, slowly put into the top of big gun hole water column.
Leading compression cartridge bag dose: compress in advance cartridge bag dose and blasthole diameter and clog highly relevantly, when being 200mm～250mm for blasthole diameter, explosive payload is 2.9～3.1 kg, and the best is 3kg.
4) in the upper hole in big gun hole, clog landwaste, until till filling up.
Because the top water column can play certain wad act, the padding below increases a leading compression cartridge bag of strengthening stopping up and more is conducive to guarantee to clog reliably quality.Therefore the highly comparable general blasting procedure of filling dwindles.Filling highly is generally 12～20 times of apertures.Be 200mm for blasthole diameter, be generally about 3～4m.
5) will compress in advance the cartridge bag detonating capsule and be connected with blasting circuit with the detonator of being connected the explosive initiation detonator, the time of compressing in advance the leading at least main explosive initiation detonator 25ms of cartridge bag detonating capsule detonates.
The present invention utilizes the efficient transferring energy of water column.Water is the medium that is difficult to compress, and deformation energy loss is less, and transmission efficiency is high, and during water shooting, approximately 97% Explosive Energy transfers the water attack wave energy to, therefore its effect is better than the pressure wave in the rock under the normal pressure.Under high pressure, the compressibility of water is larger than rock, therefore water can be used as again the cushion between explosive charge product and the rock mass, the existence of cushion not only can prolong explosion wave to the action time of rock mass, and can reduce or eliminate the energy loss that in the rock of ore deposit, produces in the plastic deformation band, be delivered in the rock mass thereby increase blast.
The present invention adds water column on blast hole projectile filling top and transmits explosive pressure, lays leading compression cartridge bag between water column and the top filling.To increase filling intensity, then the main body powder column begins to detonate leading compression cartridge bag with the stuffing pre-compacted during explosion.The hydraulic booster blasting energy utilizes explosive to transmit the explosion energy pressurized effect more fully in water column, thereby makes the rock mass that contacts with water can obtain larger pressure, makes step top rock mass obtain the explosion energy that extra waterpower is transmitted.Thereby reach the effect that improves the explosion energy utilization rate, improves the lumpiness composition distribution of step top.
After above technical scheme is adopted in hydraulic booster blasting method of the present invention, have following good effect:
(1) improve step top rock blasting quality, reduce boulder yield, reduce greatly cost, technical process cylinder list need not large fund input.
(2) this technology can moment with the dust atomizing conglomeration that explosion produces, greatly reduced the generation of blasting dust, the dust-laying effect of this invention of on-the-spot contrast test checking proof is significant.
(3) this invents the mine of applicable different explosive material, different size drilling and blasting, carrier loader, especially adapts in dark mine recessed and water-bearing deposit to apply.
Description of drawings
Fig. 1 is the charge constitution schematic diagram of a kind of hydraulic booster blasting method of the present invention.
Reference numeral is:
1-master's explosive; 2-master's explosive initiation detonator; The 3-water bag; The 4-water column; 5-compresses the cartridge bag detonating capsule in advance; 6-compresses cartridge bag in advance; The 7-landwaste; 8-big gun hole; The 9-detonator; The h-blast hole depth; The d-blasthole diameter; H1-clogs height; The h2-water-column; The h3-shot elevation.
The specific embodiment
For further describing the present invention, below in conjunction with drawings and Examples a kind of hydraulic booster blasting method of the present invention is described in further detail.
Charge constitution schematic diagram by a kind of hydraulic booster blasting method of the present invention shown in Figure 1 is found out, the inventive method is h with diameter d, the degree of depth in big gun hole 8, be divided into upper, middle, and lower part, be followed successively by from top to bottom height h1, the height h2 of water column 4 of filling landwaste 7 and the shot elevation h3 of main explosive 1.
Wherein: h=h1+h2+h3 ≈ 12m, d=200mm～250mm, h2=2.5～4m, h1=(12～20) d.
A kind of hydraulic booster blasting method of the present invention is carried out according to following technological process:
1) by the dose of in advance design with pack into the bottom in continuous big gun hole 8 of main explosive 1, simultaneously with main explosive initiation detonator 2 also with pack into the bottom in big gun hole 8 of main explosive 1; The quantity of main explosive initiation detonator 2 is two, and is with section not.
2) water bag 3 is connected water pipe put into big gun hole 8 main explosives 1 above, water bag 3 is formed water column 4 by the water yield water filling of in advance design, then water pipe is extracted out.
3) will compress in advance cartridge bag detonating capsule 5 and insert in the leading compression cartridge bag 6, slowly put into the top of big gun hole 8 water columns 4.The quantity of leading compression cartridge bag detonating capsule 5 is 1.
Main explosive initiation detonator 2, in advance compress cartridge bag detonating capsule 5 for different sections not.
4) in the upper hole in big gun hole 8, clog landwaste 7, until till filling up;
5) will compress in advance cartridge bag detonating capsule 5 and be connected with blasting circuit with the detonator of being connected explosive initiation detonator 2, the time of 25ms detonates at least to compress in advance cartridge bag detonating capsule 5 leading main explosive initiation detonators 2.
Claims (5)
1. hydraulic booster blasting method is characterized in that carrying out according to following technological process:
1) by the dose of in advance design with pack into the bottom in continuous big gun hole (8) of main explosive (1), simultaneously with main explosive initiation detonator (2) also with pack into the bottom of big gun hole (8) of main explosive (1);
2) water bag (3) is connected water pipe put into the main explosive in big gun hole (8) (1) above, water bag (3) is formed water column (4) by the water yield water filling of in advance design, then water pipe is extracted out;
3) will compress in advance cartridge bag detonating capsule (5) and insert in the leading compression cartridge bag (6), slowly put into the top of big gun hole (8) water column (4);
4) in the upper hole in big gun hole (8), clog landwaste (7), until till filling up;
5) will compress in advance cartridge bag detonating capsule (5) and be connected with blasting circuit with the detonator of being connected explosive initiation detonator (2), the time of compressing in advance the leading at least main explosive initiation detonator of cartridge bag detonating capsule (5) (2) 25ms detonates.
2. a kind of hydraulic booster blasting method as claimed in claim 1 is characterized in that: water column (4) height that forms after water bag (3) water filling is in 2.5m～4m scope.
3. a kind of hydraulic booster blasting method as claimed in claim 1, it is characterized in that: the quantity of described main explosive initiation detonator (2) is 2, and the two is with section not.
4. such as claim 1,2 or 3 described a kind of hydraulic booster blasting methods, it is characterized in that: the landwaste (7) of clogging in the upper hole in described big gun hole (8) highly is 12～20 times of big gun hole (8) diameter.
5. a kind of hydraulic booster blasting method as claimed in claim 4, it is characterized in that: described blasthole diameter is 200mm～250mm, the explosive payload of described leading compression cartridge bag (6) is 2.9～3.1 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210463589.XA CN102944147B (en) | 2012-11-18 | 2012-11-18 | Waterpower pressurization blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210463589.XA CN102944147B (en) | 2012-11-18 | 2012-11-18 | Waterpower pressurization blasting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102944147A true CN102944147A (en) | 2013-02-27 |
| CN102944147B CN102944147B (en) | 2014-09-10 |
Family
ID=47727113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210463589.XA Expired - Fee Related CN102944147B (en) | 2012-11-18 | 2012-11-18 | Waterpower pressurization blasting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102944147B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453809A (en) * | 2013-08-09 | 2013-12-18 | 中国人民武装警察部队水电三峡工程指挥部 | Water-mist dust settling method implemented during blast excavation for large-scale underground project |
| WO2017205881A1 (en) * | 2016-05-26 | 2017-11-30 | Master Blaster Proprietary Limited | A method of blasting an open cast blast hole |
| CN110823036A (en) * | 2019-12-11 | 2020-02-21 | 中南大学 | Blasting method for controlling damage of edge rock mass of blasting area |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200084U (en) * | 1985-04-01 | 1985-11-10 | 李起山 | Water seal and water pressure water case for shot hole blasting |
| CN101046366A (en) * | 2007-01-24 | 2007-10-03 | 荆山 | Water pressure burst hole and burst method with energy saving and environment friendship |
| US20090277354A1 (en) * | 2008-05-06 | 2009-11-12 | Robert Vincent T | Blasting air tube with sleeve, and method |
| CN102494575A (en) * | 2011-12-20 | 2012-06-13 | 鞍钢集团矿业公司 | Efficient filling method for outdoor chamber blasting |
-
2012
- 2012-11-18 CN CN201210463589.XA patent/CN102944147B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200084U (en) * | 1985-04-01 | 1985-11-10 | 李起山 | Water seal and water pressure water case for shot hole blasting |
| CN101046366A (en) * | 2007-01-24 | 2007-10-03 | 荆山 | Water pressure burst hole and burst method with energy saving and environment friendship |
| US20090277354A1 (en) * | 2008-05-06 | 2009-11-12 | Robert Vincent T | Blasting air tube with sleeve, and method |
| CN102494575A (en) * | 2011-12-20 | 2012-06-13 | 鞍钢集团矿业公司 | Efficient filling method for outdoor chamber blasting |
Non-Patent Citations (1)
| Title |
|---|
| 周胜利: "姑山矿露天台阶水介质爆破试验研究", 《中国矿业》, no. 42, 31 December 1999 (1999-12-31), pages 259 - 264 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453809A (en) * | 2013-08-09 | 2013-12-18 | 中国人民武装警察部队水电三峡工程指挥部 | Water-mist dust settling method implemented during blast excavation for large-scale underground project |
| CN103453809B (en) * | 2013-08-09 | 2015-07-08 | 中国人民武装警察部队水电三峡工程指挥部 | Water-mist dust settling method implemented during blast excavation for large-scale underground project |
| WO2017205881A1 (en) * | 2016-05-26 | 2017-11-30 | Master Blaster Proprietary Limited | A method of blasting an open cast blast hole |
| CN110823036A (en) * | 2019-12-11 | 2020-02-21 | 中南大学 | Blasting method for controlling damage of edge rock mass of blasting area |
| CN110823036B (en) * | 2019-12-11 | 2020-09-01 | 中南大学 | Blasting method for controlling damage of edge rock mass of blasting area |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102944147B (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105571419B (en) | Blasting method capable of effectively reducing blasting boulder yield of surface mine | |
| CN103940309B (en) | A kind of method of underground blasting Cheng Jing | |
| CN104154830B (en) | Medium-length hole blasting method for underground mining | |
| CN102052068B (en) | Method and device for composite fracturing/perforating for oil/gas well | |
| CN105651127B (en) | Charge system for advance rock breaking of surface mine | |
| CN101440704B (en) | Ground-dipping ore bed continuous high-energy gas fracturing seepage increasing method and specific high-energy gas generator | |
| CN103195466A (en) | Directional water pressure blasting method for improving coal bed gas permeability | |
| WO1992002709A1 (en) | Controlled fracture method and apparatus for breaking hard compact rock and concrete materials | |
| CN103148748B (en) | Bearing pressure adjustable plastic expansion pipe deep hole blasting control method | |
| CN102221315A (en) | Multi-layered blasting method for cluster holes | |
| CN104500068A (en) | Dry ice blasting method and dry ice blasting device | |
| CN203083466U (en) | Low-boulder-yield waterpower supercharging blasting charging structure | |
| CN102914227B (en) | A kind of construction method for the novel charge constitution of explosives mix-load truck | |
| CN103206903A (en) | Hard roof directional pressurized explosion control method | |
| CN104048570A (en) | Deep hole blasting filling method | |
| CN105627846A (en) | Method for preventing and treating rock burst through deep-hole pressure release blasting | |
| CN102944147B (en) | Waterpower pressurization blasting method | |
| CN112665472A (en) | Carbon dioxide rock breaking device and method for open pit mine | |
| CN201568038U (en) | Composite fracturing and perforating device for oil and gas well | |
| CN106839911A (en) | The blasting method of the laddering secondary efficient demolition set in axial direction and device | |
| CN102817633A (en) | Device for draining gas by deep hole crack control blasting and precracking method | |
| CN206670477U (en) | The axially demolition set of laddering secondary efficiently demolition set | |
| CN109186390A (en) | Hole Blasting In Open-pit Mines water spacer-coupling charging blasting method and dedicated water column bag | |
| CN110332865A (en) | Deep high stress stope upper centripetal deep hole combined blasting method | |
| CN102261874A (en) | Method for blasting large section of rock roadway at one time |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH CO Effective date: 20150416 Owner name: MAANSHAN INSTITUTE OF MINING RESEARCH BLASTING ENG Free format text: FORMER OWNER: SINOSTEEL MAANSHAN INSTITUTE OF MINING RESEARCH CO., LTD. Effective date: 20150416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150416 Address after: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee after: Ma'an Mountain mine research institute blasting engineering Co., Ltd Patentee after: Sinosteel Maanshan Institute of Mining Research Co., Ltd. Address before: 243000 Xitang Road, Ma'anshan Economic Development Zone, Anhui, No. 666 Patentee before: Sinosteel Maanshan Institute of Mining Research Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20191118 |