CN105509584A - Emulsion explosive medium-length-hole quick-blasting construction method used in coal mine high-temperature fire area - Google Patents
Emulsion explosive medium-length-hole quick-blasting construction method used in coal mine high-temperature fire area Download PDFInfo
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- CN105509584A CN105509584A CN201610093944.7A CN201610093944A CN105509584A CN 105509584 A CN105509584 A CN 105509584A CN 201610093944 A CN201610093944 A CN 201610093944A CN 105509584 A CN105509584 A CN 105509584A
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- blast hole
- hole
- length
- explosive
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- 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
Abstract
The invention discloses an emulsion explosive medium-length-hole quick-blasting construction method used in a coal mine high-temperature fire area. Deep blasting and shallow blasting are adopted, explosive cylinder and a blockage cylinder corresponding to the two-time blasting are specially made, and networking and explosive charging steps are exchanged. The construction method does not use high-temperature-resistance equipment and does not adopt temperature-lowering measures, and correspondingly the economic cost and operative difficulty are reduced. In addition, a two-order blasting mode is adopted, the method that explosive charging is performed after networking is adopted, and the method is matched with the specially made explosive cylinder, so that the time for one-time blasting is shortened, safe and quick construction is ensured, and meanwhile simple operation and a safe, reliable and good blasting effect are achieved.
Description
Technical field
The present invention relates to blasting technique field, particularly relate to a kind of colliery high temperature flame range emulsion medium-length hole quick bursting construction method.
Background technology
Long-hole Bench Blasting exploitation is the main recovery method of open coal mine.Due to many reasons, in the northwestern that China's open coal mine is more, coalfield selfcombustion phenomenon is very serious.According to investigation, northern China coalfield selfcombustion flame range has 56 places, wherein serious with Xinjiang, the municipal coal-smits fire in the Inner Mongol and three, Ningxia.These open coal mines that there is spontaneous combustion bring great potential safety hazard to deep hole blasting exploitation, although numerous scientific research personnel administers the high temperature of open coal mine flame range from different aspects and is studied and explores in recent years, but the demolition accident caused in colliery high temp fire paneling operation in the open happens occasionally, coal large peak open coal mine as peaceful in Shenhua twice demolition accident of 2008,2009 has substantial connection all therewith.Therefore, accelerating the technical research of high temperature flame range Long-hole Bench Blasting is an extremely urgent problem in the exploitation of open coal mine spontaneous combustion area.
In addition, from the high temperature explosion of current China different field, the method for the heat insulating packaging of general employing big gun hole cooling, special shotfiring safety technology, high temperature resistant explosive and explosive, ensures the safety of blast working.Normal according to different big gun hole temperature in the operation of reality, adopt different explosives and different technical safety measures, the situation that several method comprehensively uses is more.But due to the reason such as cost, security, all there is certain weak point in these ways at present.In some high temperature areas, adopt water filling cannot reach the temperature province of being down to safe construction; The methods such as high temperature resistant explosive or heat insulating packaging are adopted to there is again the problems such as construction inconvenience, deficiency in economic performance.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of colliery high temperature flame range emulsion medium-length hole quick bursting construction method.
Technical solution of the present invention is as follows: a kind of colliery high temperature flame range emulsion medium-length hole quick bursting construction method, comprises the following steps:
1. in colliery high temperature flame range determination blow-up point and blast hole quantity, excavate blast hole, this blast hole is as single order blast hole, and the degree of depth of single order blast hole is 5-8m;
2. each blast hole correspondence arranges a primacord, is connected one of every root primacord with the article that detonate, and the other end of primacord snaps into one end of main primacord jointly, and the other end of main primacord is connected with initiator;
3. the corresponding staff of each blast hole, each staff first inserts the article that detonate bottom respective blast hole, then in blast hole, two explosive columns are inserted, the length of single explosive column is 1-2m, two end-to-end contacts of explosive column, the emulsion that described explosive column is no less than 16% by water content is made, and then in blast hole, inserts blocking post, and blocks up tight blast hole with blocking post;
4. all blast holes block up tightly, and staff evacuates to safety area;
5. detonate;
6. clear up blow-up point, and again determine blast hole quantity as required on this position, and excavate blast hole, this blast hole is as second order blast hole, and the degree of depth of second order blast hole is 5-8m, then repeat above-mentioned steps 2. to step 5..
Adopt with prior art and dig blast hole, insert explosive, primacord networks, personnel withdraw and compare with step of detonating, the present invention adopts and is first networked by primacord, and the article that will detonate are connected with primacord, insert the mode of detonate article and explosive column again, like this can the good explosion of the rapid reloading article that detonate, primacord and the explosive column that need.Generally get the medium-length hole of 10-13m in the degree of depth in the blasting technology borehole blasting hole in colliery, general employing single order explosion in prior art, namely the disposable blast hole for this degree of depth carries out explosion.Adopt the mode of two rank explosions in the technical program, namely on the dark single order blast hole of 5-8m first after explosion, then the second order blast hole digging out 5-8m in original place dark carries out explosion.Based on the operation of two rank explosions, the explosive column length of use is special 1-2m explosive column, and every separate explosion is end-to-end in blast hole inserts two explosive columns, convenient and swift.Adopt the emulsion of water content on 16% in this programme, add explosive security in high temperature environments, adopt clogging in explosion simultaneously, the detonation effect of explosive charge can be improved.
This programme is relative to prior art, first do not use high temperature resistant equipment and do not adopt cooling measure, correspondence reduces financial cost and operation easier, adopt the mode of two rank explosions in addition, and adopt and first network and insert the way of explosive afterwards, and coordinate special explosive column, effectively reduce the time of single explosion, ensure that and construct safely and fast.
Described blocking post is made up of outer bag and the filler filled in outer bag, and filler is rock dust or sandstone.The clogging explosive charge that makes of being filled by rock dust or sandstone has better detonation effect.
The length of described blocking post is 1-3m.In order to coordinate blast hole that single explosion 5-8m is dark and the dark explosive column of 1-2m, adopt the blocking post of this length can not have a negative impact to explosion because of long or too short.
As preferably, described in the article that detonate be priming bomb or igniting primer.
Beneficial effect: the present invention does not use high temperature resistant equipment and do not adopt cooling measure, correspondence reduces financial cost and operation easier, adopt the mode of two rank explosions in addition, and adopt and first network and insert the way of explosive afterwards, and coordinate special explosive column, effectively reduce the time of single explosion, ensure that and construct safely and fast, simultaneously simple to operate, safe and reliable, demolition effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment one:
As shown in Figure 1, colliery high temperature flame range emulsion medium-length hole quick bursting construction method, comprises the following steps:
1. in colliery high temperature flame range determination blow-up point and blast hole quantity, the present embodiment borehole blasting hole number is 7, and excavate blast hole, this blast hole is as single order blast hole, and the degree of depth of single order blast hole is 5m;
2. each blast hole correspondence arranges a primacord 2, one of every root primacord 2 is connected with the article 1 that detonate, the article that detonate in this enforcement are priming bomb, and the other end of primacord 2 snaps into one end of main primacord jointly, and the other end of main primacord is connected with initiator;
3. the corresponding staff of each blast hole, each staff first inserts the article 1 that detonate bottom respective blast hole, then in blast hole, two explosive columns 2 are inserted, the length of single explosive column 2 is 1m, two end-to-end contacts of explosive column 2, the emulsion that described explosive column 2 is 16% by water content is made, then in blast hole, insert blocking post 4, and block up tight blast hole with blocking post 4, blocking post 4 is made up of outer bag and the filler filled in outer bag, filler is rock dust, and the length of blocking post is 3m;
4. all blast holes block up tightly, and staff evacuates to safety area;
5. detonate;
6. clear up blow-up point, and again determine blast hole quantity as required on this position, and excavate blast hole, this blast hole is as second order blast hole, and the degree of depth of second order blast hole is 8m, then repeat above-mentioned steps 2. to step 5..
Embodiment two:
As shown in Figure 1, colliery high temperature flame range emulsion medium-length hole quick bursting construction method, comprises the following steps:
1. in colliery high temperature flame range determination blow-up point and blast hole quantity, the present embodiment borehole blasting hole number is 8, and excavate blast hole, this blast hole is as single order blast hole, and the degree of depth of single order blast hole is 8m;
2. each blast hole correspondence arranges a primacord 2, one of every root primacord 2 is connected with the article 1 that detonate, the article that detonate in this enforcement are igniting primer, and the other end of primacord 2 snaps into one end of main primacord jointly, and the other end of main primacord is connected with initiator;
3. the corresponding staff of each blast hole, each staff first inserts the article 1 that detonate bottom respective blast hole, then in blast hole, two explosive columns 2 are inserted, the length of single explosive column 2 is 2m, two end-to-end contacts of explosive column 2, the emulsion that described explosive column 2 is 20% by water content is made, then in blast hole, insert blocking post 4, and block up tight blast hole with blocking post 4, blocking post 4 is made up of outer bag and the filler filled in outer bag, filler is sandstone, and the length of blocking post is 3m;
4. all blast holes block up tightly, and staff evacuates to safety area;
5. detonate;
6. clear up blow-up point, and again determine blast hole quantity as required on this position, and excavate blast hole, this blast hole is as second order blast hole, and the degree of depth of second order blast hole is 5m, then repeat above-mentioned steps 2. to step 5..
Embodiment three:
As shown in Figure 1, a kind of colliery high temperature flame range emulsion medium-length hole quick bursting construction method, comprises the following steps:
1. in colliery high temperature flame range determination blow-up point and blast hole quantity, the present embodiment borehole blasting hole number is 8, and excavate blast hole, this blast hole is as single order blast hole, and the degree of depth of single order blast hole is 6m;
2. each blast hole correspondence arranges a primacord 2, one of every root primacord 2 is connected with the article 1 that detonate, the article that detonate in this enforcement are igniting primer, and the other end of primacord 2 snaps into one end of main primacord jointly, and the other end of main primacord is connected with initiator;
3. the corresponding staff of each blast hole, each staff first inserts the article 1 that detonate bottom respective blast hole, then in blast hole, two explosive columns 2 are inserted, the length of single explosive column 2 is 1.5m, two end-to-end contacts of explosive column 2, the emulsion that described explosive column 2 is 30% by water content is made, then in blast hole, insert blocking post 4, and block up tight blast hole with blocking post 4, blocking post 4 is made up of outer bag and the filler filled in outer bag, filler is sandstone and rock dust, and the length of blocking post is 2m;
4. all blast holes block up tightly, and staff evacuates to safety area;
5. detonate;
6. clear up blow-up point, and again determine blast hole quantity as required on this position, and excavate blast hole, this blast hole is as second order blast hole, and the degree of depth of second order blast hole is 6m, then repeat above-mentioned steps 2. to step 5..
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (4)
1. a colliery high temperature flame range emulsion medium-length hole quick bursting construction method, is characterized in that comprising the following steps:
1. in colliery high temperature flame range determination blow-up point and blast hole quantity, excavate blast hole, this blast hole is as single order blast hole, and the degree of depth of single order blast hole is 5-8m;
2. each blast hole correspondence arranges a primacord (2), one of every root primacord (2) is connected with the article that detonate (1), the other end of primacord (2) snaps into one end of main primacord jointly, and the other end of main primacord is connected with initiator;
3. the corresponding staff of each blast hole, each staff first inserts the article that detonate (1) bottom respective blast hole, then in blast hole, insert two explosive columns (2), the length of single explosive column (2) is 1-2m, the end-to-end contact of two explosive columns (2), the emulsion that described explosive column (2) is no less than 16% by water content is made, then in blast hole, insert blocking post (4), and block up tight blast hole with blocking post (4);
4. all blast holes block up tightly, and staff evacuates to safety area;
5. detonate;
6. clear up blow-up point, and again determine blast hole quantity as required on this position, and excavate blast hole, this blast hole is as second order blast hole, and the degree of depth of second order blast hole is 5-8m, then repeat above-mentioned steps 2. to step 5..
2. colliery as claimed in claim 1 high temperature flame range emulsion medium-length hole quick bursting construction method, is characterized in that: described blocking post (4) is made up of outer bag and the filler filled in outer bag, and filler is rock dust or sandstone.
3. colliery as claimed in claim 1 or 2 high temperature flame range emulsion medium-length hole quick bursting construction method, is characterized in that: the length of described blocking post (4) is 1-3m.
4. colliery as claimed in claim 3 high temperature flame range emulsion medium-length hole quick bursting construction method, is characterized in that: described in detonate article (1) for priming bomb or igniting primer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610093944.7A CN105509584A (en) | 2016-02-18 | 2016-02-18 | Emulsion explosive medium-length-hole quick-blasting construction method used in coal mine high-temperature fire area |
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|---|---|---|---|
| CN201610093944.7A CN105509584A (en) | 2016-02-18 | 2016-02-18 | Emulsion explosive medium-length-hole quick-blasting construction method used in coal mine high-temperature fire area |
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| CN105509584A true CN105509584A (en) | 2016-04-20 |
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| CN201610093944.7A Pending CN105509584A (en) | 2016-02-18 | 2016-02-18 | Emulsion explosive medium-length-hole quick-blasting construction method used in coal mine high-temperature fire area |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440983A (en) * | 2016-11-11 | 2017-02-22 | 宏大爆破有限公司 | Remote control explosive loading device for fire area high-temperature blasting and construction method |
| CN108815752A (en) * | 2018-07-05 | 2018-11-16 | 西安科技大学 | A kind of accurate subregion explosion extinguishing method of high temperature coal-field fire |
Citations (4)
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| GB1078272A (en) * | 1963-08-20 | 1967-08-09 | Dynamit Nobel Ag | Improvements in or relating to shot-blasting |
| CN104154832A (en) * | 2014-08-18 | 2014-11-19 | 葛洲坝易普力股份有限公司 | Blasting method for high-temperature sealed fire areas |
| CN204255202U (en) * | 2014-10-23 | 2015-04-08 | 葛洲坝易普力股份有限公司 | A kind of blast hole loading structure being applicable to high temperature explosion |
| CN104567566A (en) * | 2014-12-19 | 2015-04-29 | 葛洲坝易普力股份有限公司 | Heat-insulating sheath suitable for high-temperature blast hole charge and method for high-temperature blasting charge |
-
2016
- 2016-02-18 CN CN201610093944.7A patent/CN105509584A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1078272A (en) * | 1963-08-20 | 1967-08-09 | Dynamit Nobel Ag | Improvements in or relating to shot-blasting |
| CN104154832A (en) * | 2014-08-18 | 2014-11-19 | 葛洲坝易普力股份有限公司 | Blasting method for high-temperature sealed fire areas |
| CN204255202U (en) * | 2014-10-23 | 2015-04-08 | 葛洲坝易普力股份有限公司 | A kind of blast hole loading structure being applicable to high temperature explosion |
| CN104567566A (en) * | 2014-12-19 | 2015-04-29 | 葛洲坝易普力股份有限公司 | Heat-insulating sheath suitable for high-temperature blast hole charge and method for high-temperature blasting charge |
Non-Patent Citations (2)
| Title |
|---|
| 束学来: "露天煤矿火区爆破若干问题研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 蔡建德: "露天煤矿高温区爆破安全作业技术研究", 《工程爆破》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440983A (en) * | 2016-11-11 | 2017-02-22 | 宏大爆破有限公司 | Remote control explosive loading device for fire area high-temperature blasting and construction method |
| CN106440983B (en) * | 2016-11-11 | 2018-01-23 | 宏大爆破有限公司 | A kind of remote control means for loading and construction method for flame range high temperature explosion |
| CN108815752A (en) * | 2018-07-05 | 2018-11-16 | 西安科技大学 | A kind of accurate subregion explosion extinguishing method of high temperature coal-field fire |
| CN108815752B (en) * | 2018-07-05 | 2019-07-02 | 西安科技大学 | A kind of accurate subregion explosion extinguishing method of high temperature coal-field fire |
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Application publication date: 20160420 |
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