CN104457459A - Coal mine roof deep hole roof breaking charging structure and detonation method - Google Patents
Coal mine roof deep hole roof breaking charging structure and detonation method Download PDFInfo
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- CN104457459A CN104457459A CN201410586337.5A CN201410586337A CN104457459A CN 104457459 A CN104457459 A CN 104457459A CN 201410586337 A CN201410586337 A CN 201410586337A CN 104457459 A CN104457459 A CN 104457459A
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Abstract
The invention discloses a coal mine roof deep hole roof breaking charging structure and a detonation method. It can be guaranteed that a device is well coupled with a coal rock wall, operation is convenient, cost is low, and installation is simple and flexible. The method is mainly characterized in that the device is supported by the coal rock wall through the elasticity of a steel wire, it is guaranteed that the device can support a large number of emulsion explosives to be permanently fixed into a detonation hole with the large diameter and the large elevation, the emulsion explosives are unlikely to fall, and the situation that detonation can not be conducted and normal extraction is affected due to the fact that the moisture in the detonation hole is too much, the emulation explosives and a hole sealing material slide down together and the stemming sealed hole is not firmly bound to the rock wall is avoided. The device is cheap and simple in structure, an explosive roll in the detonation hole can be fixed through the device in the use process, prevented from sliding down and smoothly sealed in the detonation hole, and the defects of a pneumatic charging machine can be overcome. Meanwhile, the length and the angle of the steel wire on a steel pipe can be changed according to the diameter of the hole and the coal mine roof deep hole roof breaking charging structure can meet the requirements of various holes in a project.
Description
Technical field
The present invention relates to a kind of blasting method, be specifically related to a kind of coal mine roof plate deep hole disconnected top charge constitution and blasting method.
Background technology
Along with a large amount of infrastructure constructions and economic development are to the demand of the energy, in hydraulic engineering, Tunnel Engineering and mine engineering etc., all deep hole blasting technology can be used.Along with the general of deep hole blasting technology application is with progressively ripe, its charging machine charging means and safety problem also more and more receive the concern of people.Charging machine charging means common at present adopts pneumatic loading machine, and it is mainly used in heading, upraise and part minor diameter shallow bore hole mining engineering, for Large diameter deep-hole blasting powder charge poor effect.And in charging machine operating process, due to the difference of the aspects such as workmen's quality, technology, all can affect charging quality and the time of pneumatic loading machine directly or indirectly, make delayed works and demolition effect not good, even can not ignite.Secondly the explosive that pneumatic loading machine uses is applicable to low gaseous mine, and very easily brings out gas explosion in highly gassy mine use, has buried hidden danger to Safety of Coal Mine Production.
Summary of the invention
For solving the problem, the invention provides a kind of coal mine roof plate deep hole disconnected top charge constitution and blasting method, ensure that this device is coupled with coal petrography wall closely to cause and can bear a large amount of emulsion weight, and prevent emulsion landing can complete sealing of hole work smoothly, efficiency is improve compared with manual charging, alleviate the labour intensity of workman, weight capacity is strong, can help to solve the problem that a lot of engineering field cannot carry out top board deep hole blasting work.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of coal mine roof plate deep hole disconnected top charge constitution and blasting method, comprise the steps:
S1, in wall coal and rock, set blast hole;
The angle of S2, adjustment rig and blast hole, makes drilling rod enter in blast hole smoothly, blocks primacord according to blast hole length;
S3, the primacord of step S2 gained is penetrated in the little casing of steel of top board deep hole blasting powder charge section fixture side, and primacord is penetrated in pvc pipe connector enclose in pvc pipe, small gap is cut out by bottom the connector of pvc pipe bottom, allow its block the little casing of steel-, thus fixing top board deep hole blasting powder charge section fixture; (prevent in blast hole top drug delivery process, top board deep hole blasting powder charge section fixture is rotated and is broken by primacord).
S4, emulsion is put in pvc pipe;
The pvc pipe of S5, step S4 gained is sent in blast hole, after all sending into, makes the top board deep hole blasting powder charge section fixture seat of pvc pipe bottom on drilling rod, by debugging rig, pvc pipe is delivered to the top of blast hole;
After S6, drug delivery terminate, PVC blast pipe is sent in blast hole, after this root is sent into, with special glue by lower PVC blast pipe therewith root connect, continue to be fed into after connection, until PVC blast pipe top is terminated after contacting with top board deep hole blasting powder charge section fixture;
S7, by burlap bag webs the iron pipe of slip casting machine head end parcel, and toward it smears the Ma Lisan prepared, insert in blast hole after reacting, after expansion terminates, prepare slip casting, whether inspection slip casting machine pipeline blocks, and debugs slip casting machine;
S8, debugged after, in agitator tank, add appropriate water and cement start to stir, after stirring, open Grouting Pipe switch and start slip casting, until PVC blast pipe flows out cement mortar stop slip casting;
After S9, slip casting complete, with stemming, detonator and remaining primacord are all enclosed in blast hole, can explosion after cement slurry sets.
Wherein, the blast hole diameter in described step S1 is not less than 75mm; Hole depth is not less than 20m; The elevation angle, hole is not less than 70 °.
Wherein, in described step S5, people must be had to buttress pvc pipe at blast hole porch, bending section, afterbody, and make it slowly send into, prevent it from fractureing.
The present invention can ensure that this device is coupled well with coal petrography wall, and easy to operate, and cost is low, installs simple and flexible.It is crucial that this method utilizes the resiliency supported of steel wire on coal petrography wall, ensure that this device can support a large amount of emulsion and for good and all be fixed in the blast hole of major diameter, big-elevation, be not easy to come off, avoiding excessive emulsion landing and stemming sealing of hole and crag together with the sealing material reason such as loosely that bonds that causes of moisture in big gun hole cannot drive into by causing explosion, affecting normal back production; This device cheapness is simple and easy, structure simple, and in use, this device can fix the explosive cartridge in blast hole, prevents its landing, encloses in blast hole smoothly, also can make up the deficiency of pneumatic loading machine.Meanwhile, the steel wire above steel pipe also can change its length and angle according to the size of hole diameter, can adapt to the requirement of various hole in engineering.
The present invention has following beneficial effect:
1, the inventive method according to the size of engineering borehole blasting bore dia, can change angle and the length of the steel wire above steel pipe, meet the requirement of various hole;
2, the inventive method is simple to operate, alleviates the labour intensity of workman, effectively improves project progress;
3, the inventive method is applicable to pneumatic loading machine and cannot uses when highly gassy mine work;
4, apparatus of the present invention weight capacity is strong, can use under more severe engineering specifications.
Accompanying drawing explanation
A kind of coal mine roof plate deep hole disconnected top charge constitution of Fig. 1 embodiment of the present invention and blasting method blast hole technical parameter schematic diagram.
A kind of coal mine roof plate deep hole disconnected top charge constitution of Fig. 2 embodiment of the present invention and blasting method structural representation.
The cross section structure schematic diagram of Fig. 3 Fig. 2.
Wherein, in figure: 1-primacord; 2-emulsion; 3-cement mortar; 4-detonator; 5-stemming; 6-gunnysack pieces of cloth add Ma Lisan; The payment to a porter of 7-detonator; 8-PVC pipe connector; 9-PVC manages; 10,12-airspace; 11-top board deep hole blasting powder charge section fixture; 13-PVC blast pipe; 14-steel pipe; 15-Grouting Pipe switch; 16-round tray; 17-steel pipe; The little casing of 18-steel; 19-steel wire; L-loaded length; S-seals length.
Detailed description of the invention
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, require to explode holes in advance according to blast hole technical parameter in the coal and rock of tunnel.
Specific construction carries out as follows:
When S11, adjustment rig, by good for primacord that this separate explosion uses 1 linear measure longimetry, length 1m-2m (according to this length judge distance apart from blast hole top) longer than blast hole 1 length;
The angle of S12, adjustment rig and blast hole, drilling rod is made to enter in blast hole smoothly, block primacord 1 according to blast hole length, powder charge personnel first penetrate the primacord 1 cut in top board deep hole blasting powder charge section fixture 11 and whole pvc pipe connector 8; And primacord 1 to be enclosed in pvc pipe 9; small gap is cut out by bottom the connector 8 of pvc pipe 9 bottom; its little casing 18 of steel blocked in top board deep hole blasting powder charge section fixture 11 is allowed to protect primacord 1; fix top board deep hole blasting powder charge section fixture 11 (prevent in blast hole top drug delivery process, top board deep hole blasting powder charge section fixture 11 is rotated and broken by primacord 1)
After the debugging of S13, rig, pvc pipe 9 powder charge complete, the pvc pipe that explosive is housed is sent in blast hole, in this process, people must be had at explosion aperture place, bending section, afterbody buttress the pvc pipe 9 that emulsion 2 is housed, and make it slowly send into, prevent it from fractureing, after all sending into, make the top board deep hole blasting powder charge section fixture 11 of pvc pipe 9 bottom on drilling rod, with rig, the pvc pipe 9 that emulsion 2 is housed is delivered to the top of blast hole;
After S14, drug delivery terminate, PVC blast pipe 13 is sent in blast hole, until this root send into after, with special glue by lower PVC blast pipe 13 therewith root connect, continue to be fed into after connection, until PVC blast pipe 13 top is terminated after contacting with top board deep hole blasting powder charge section fixture 11;
S15, by burlap bag webs 6 the iron pipe of slip casting machine head end parcel, and toward it smears the Ma Lisan prepared, insert in blast hole after reacting, after expansion terminates, prepare slip casting, whether inspection slip casting machine pipeline blocks, and debugs slip casting machine;
S16, debugged after, in agitator tank, add appropriate water and cement start to stir, after stirring, open Grouting Pipe switch and start slip casting, until PVC blast pipe 13 flows out cement mortar 3 stop slip casting;
After S17, slip casting complete, with stemming 5, detonator 4 and remaining primacord 1 are all enclosed in blast hole, can explosion after cement mortar 3 solidifies.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. coal mine roof plate deep hole disconnected top charge constitution and a blasting method, is characterized in that, comprise the steps:
S1, in wall coal and rock, set blast hole;
The angle of S2, adjustment rig and blast hole, makes drilling rod enter in blast hole smoothly, blocks primacord according to blast hole length;
S3, the primacord of step S2 gained is penetrated in the little casing of steel of top board deep hole blasting powder charge section fixture side, and primacord is penetrated in pvc pipe connector enclose in pvc pipe, small gap is cut out by bottom the connector of pvc pipe bottom, allow its block the little casing of steel-, thus fixing top board deep hole blasting powder charge section fixture; (prevent in blast hole top drug delivery process, top board deep hole blasting powder charge section fixture is rotated and is broken by primacord).
S4, emulsion is put in pvc pipe;
The pvc pipe of S5, step S4 gained is sent in blast hole, after all sending into, makes the top board deep hole blasting powder charge section fixture seat of pvc pipe bottom on drilling rod, by debugging rig, pvc pipe is delivered to the top of blast hole;
After S6, drug delivery terminate, PVC blast pipe is sent in blast hole, after this root is sent into, with special glue by lower PVC blast pipe therewith root connect, continue to be fed into after connection, until PVC blast pipe top is terminated after contacting with top board deep hole blasting powder charge section fixture;
S7, by burlap bag webs the iron pipe of slip casting machine head end parcel, and toward it smears the Ma Lisan prepared, insert in blast hole after reacting, after expansion terminates, prepare slip casting, whether inspection slip casting machine pipeline blocks, and debugs slip casting machine;
S8, debugged after, in agitator tank, add appropriate water and cement start to stir, after stirring, open Grouting Pipe switch and start slip casting, until PVC blast pipe flows out cement mortar stop slip casting;
After S9, slip casting complete, with stemming, detonator and remaining primacord are all enclosed in blast hole, can explosion after cement slurry sets.
2. a kind of coal mine roof plate deep hole according to claim 1 disconnected top charge constitution and blasting method, it is characterized in that, the blast hole diameter in described step S1 is not less than 75mm; Hole depth is not less than 20m; The elevation angle, hole is not less than 70 °.
3. a kind of coal mine roof plate deep hole according to claim 1 disconnected top charge constitution and blasting method, is characterized in that, in described step S5, people must being had to buttress pvc pipe at blast hole porch, bending section, afterbody, and make it slowly send into, prevent it from fractureing.
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| CN201410586337.5A CN104457459A (en) | 2014-10-20 | 2014-10-20 | Coal mine roof deep hole roof breaking charging structure and detonation method |
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| CN201410586337.5A CN104457459A (en) | 2014-10-20 | 2014-10-20 | Coal mine roof deep hole roof breaking charging structure and detonation method |
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Cited By (9)
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|---|---|---|---|---|
| CN105737697A (en) * | 2016-05-05 | 2016-07-06 | 武汉大学 | Contour blasting method for joint development rock masses |
| CN106050237A (en) * | 2016-08-12 | 2016-10-26 | 中煤科工集团西安研究院有限公司 | Controlling system and method for rock burst of fully-mechanized coal mining of underlying coal seam below goaf |
| CN107588697A (en) * | 2017-09-29 | 2018-01-16 | 贵州大学 | A kind of mining site directional blasting explosion pipe fixing device |
| CN108007288A (en) * | 2017-12-29 | 2018-05-08 | 煤炭科学技术研究院有限公司 | Powder charge method for sealing for underground coal mine deep hole top plate presplit blasting |
| CN109186383A (en) * | 2018-09-20 | 2019-01-11 | 陕西太白黄金矿业有限责任公司 | A kind of waterproof demolition set |
| CN110274530A (en) * | 2019-07-18 | 2019-09-24 | 陕西正通煤业有限责任公司 | A kind of coal mine roof plate blast hole method for sealing |
| CN110531411A (en) * | 2019-09-24 | 2019-12-03 | 西安科技大学 | A kind of ESG Microseismic monitoring system sensor installation and recovery structure and method |
| CN112253040A (en) * | 2020-10-26 | 2021-01-22 | 安徽理工大学 | Segmented rapid hole sealing method for coal mine top-breaking blasting drilling |
| CN114739248A (en) * | 2022-04-14 | 2022-07-12 | 中钢集团马鞍山矿山研究总院股份有限公司 | Charging method for horizontal hole in underground mine fractured rock mass |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737697B (en) * | 2016-05-05 | 2017-06-27 | 武汉大学 | A kind of outlining blasting method suitable for joints development rock mass |
| CN105737697A (en) * | 2016-05-05 | 2016-07-06 | 武汉大学 | Contour blasting method for joint development rock masses |
| CN106050237B (en) * | 2016-08-12 | 2019-02-05 | 中煤科工集团西安研究院有限公司 | Goaf is underlied the fully mechanized mining Controlling of Coal Outburst system and method in coal seam |
| CN106050237A (en) * | 2016-08-12 | 2016-10-26 | 中煤科工集团西安研究院有限公司 | Controlling system and method for rock burst of fully-mechanized coal mining of underlying coal seam below goaf |
| CN107588697A (en) * | 2017-09-29 | 2018-01-16 | 贵州大学 | A kind of mining site directional blasting explosion pipe fixing device |
| CN107588697B (en) * | 2017-09-29 | 2023-04-07 | 贵州大学 | Blast pipe fixing device for directional blasting of mine field |
| CN108007288A (en) * | 2017-12-29 | 2018-05-08 | 煤炭科学技术研究院有限公司 | Powder charge method for sealing for underground coal mine deep hole top plate presplit blasting |
| CN108007288B (en) * | 2017-12-29 | 2019-06-28 | 煤炭科学技术研究院有限公司 | Powder charge method for sealing for underground coal mine deep hole top plate presplit blasting |
| CN109186383A (en) * | 2018-09-20 | 2019-01-11 | 陕西太白黄金矿业有限责任公司 | A kind of waterproof demolition set |
| CN109186383B (en) * | 2018-09-20 | 2021-10-22 | 陕西太白黄金矿业有限责任公司 | Waterproof blasting device |
| CN110274530A (en) * | 2019-07-18 | 2019-09-24 | 陕西正通煤业有限责任公司 | A kind of coal mine roof plate blast hole method for sealing |
| CN110531411A (en) * | 2019-09-24 | 2019-12-03 | 西安科技大学 | A kind of ESG Microseismic monitoring system sensor installation and recovery structure and method |
| CN112253040A (en) * | 2020-10-26 | 2021-01-22 | 安徽理工大学 | Segmented rapid hole sealing method for coal mine top-breaking blasting drilling |
| CN112253040B (en) * | 2020-10-26 | 2022-07-26 | 安徽理工大学 | Segmented rapid hole sealing method for coal mine top-breaking blasting drilling |
| CN114739248A (en) * | 2022-04-14 | 2022-07-12 | 中钢集团马鞍山矿山研究总院股份有限公司 | Charging method for horizontal hole in underground mine fractured rock mass |
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Application publication date: 20150325 |