CN111207636A - Deep hole large-diameter hydraulic blasting method - Google Patents
Deep hole large-diameter hydraulic blasting method Download PDFInfo
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- CN111207636A CN111207636A CN202010066053.9A CN202010066053A CN111207636A CN 111207636 A CN111207636 A CN 111207636A CN 202010066053 A CN202010066053 A CN 202010066053A CN 111207636 A CN111207636 A CN 111207636A
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- explosive
- bag
- blasting
- initiating explosive
- water
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention provides a deep hole large-caliber water pressure blasting method, which specifically comprises the following steps: firstly, excavating a deep hole; filling explosives in the deep hole to form a explosive column layer, arranging a first initiating explosive bag at the left side below the explosive column layer, and arranging a second initiating explosive bag at the middle part above the explosive column layer; filling rock slag on the explosive column layer to form a rock slag layer; and a water bag is arranged above the rock slag layer, and a third initiating explosive bag is arranged on the right side of the water bag. The blasting water bag is applied to dust suppression in surface mine blasting, the water bag is filled in the charging process, a large amount of water mist generated by water bag blasting is diffused in the air, the dust raising problem in the blasting process is effectively suppressed, the operation is simple, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of blasting, in particular to a deep hole large-caliber water pressure blasting method.
Background
In mining work of mines, open-pit blasting is often used on a large scale, and blasting generates a large amount of dust which seriously pollutes the air environment around the mine.
In the prior art, the main method for blasting dust suppression is to spray water before blasting, usually a dust removal sprayer is arranged at a position 15-20m away from a working face, a spraying device is opened before blasting, and the spraying device is closed 30 minutes after blasting. Combine to reach the dust fall purpose through water smoke and blasting dust, mainly utilize the dust removal atomizer to carry out the dust fall to the blasting dust, because the blasting place is unset at every turn, the dust removal atomizer need fix the round trip movement on moving vehicle, and the water yield that needs is very big, extravagant manpower and materials are not suitable for this kind of water resource deficient area in mine, and dust removal atomizer effective range is less moreover, is unfavorable for large-scale mine open blasting.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, open blasting in a mine area can generate a large amount of dust, the air environment around a mine is seriously polluted, and no economic and effective method for inhibiting the raised dust exists.
In order to achieve the purpose, the invention adopts the following technical scheme:
a deep hole large-caliber water pressure blasting method specifically comprises the following steps:
excavating a plurality of deep holes;
filling explosive in each deep hole to form a explosive column layer, arranging a first initiating explosive bag at the left side position below the inner part of the explosive column layer, and arranging a second initiating explosive bag at the middle position above the inner part of the explosive column layer;
filling rock slag on the explosive column layer to form a rock slag layer;
and a water bag is arranged above the rock slag layer, and a third initiating explosive bag is arranged on the right side of the water bag.
Furthermore, the first initiating explosive package and the second initiating explosive package are respectively connected with a first earth surface detonator through lead wires, and the first earth surface detonator and the third initiating explosive package are respectively connected with a second earth surface detonator through lead wires.
Further, the first initiating explosive bag and the third initiating explosive bag explode after a delay time of 375ms, and the second initiating explosive bag explodes after a delay time of 400 ms.
Further, the water bag is a cylindrical plastic film bag with the thickness of 2 mm.
According to the technical scheme, the blasting water bag is applied to dust suppression in surface mine blasting, the water bag is filled in the charging process, a large amount of water mist generated by water bag blasting is diffused in the air, the dust raising problem in the blasting process is effectively suppressed, the operation is simple, and the cost is saved.
Drawings
FIG. 1 is a schematic flow chart of the steps of the present invention;
FIG. 2 is a schematic diagram of a deep hole charge of the present invention;
in the figure: 1. a drug column layer; 2. a rock slag layer; 3. a water bag; 4. initiating a first explosive packet; 5. initiating explosive package two; 6. initiating explosive package three; 7. a surface detonator I; 8. and a surface detonator II.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the deep-hole large-caliber hydraulic blasting method specifically comprises the following steps:
s1, excavating a plurality of deep holes;
s2, filling explosives in each deep hole to form a explosive column layer, arranging a first initiating explosive packet at the left side position below the explosive column layer, and arranging a second initiating explosive packet at the middle position above the explosive column layer;
s3, filling rock slag on the explosive column layer to form a rock slag layer;
and S4, arranging a water bag above the rock slag layer and arranging a third initiating explosive bag in the middle of the right side of the water bag.
Taking a 17m deep hole blasting commonly used in a mine as an example for detailed description, as shown in fig. 1, in a specific operation, firstly filling a 11m explosive column layer 1 in the deep hole, arranging a first initiating explosive charge 4 at the left side position below the explosive column layer, arranging a second initiating explosive charge 5 at the middle position above the explosive column layer so as to enable the second initiating explosive charge to be fully contacted with an explosive, wherein the first initiating explosive charge and the second initiating explosive charge are respectively connected with a first earth surface detonator 7 through leads; and then, sequentially filling a rock slag layer 2 and a water bag 3 layer by layer, wherein the thickness of the rock slag is 4m, the thickness of the water bag is 2m, a blasting explosive bag III 6 is arranged on the right side of the water bag, the surface blasting explosive bag I and the blasting explosive bag III are respectively connected with a surface blasting explosive bag II 8 through leads, the blasting explosive bag I and the blasting explosive bag III are delayed for 375ms, and the blasting explosive bag II is delayed for 400ms and then detonated.
In order to reduce the potential safety hazard, the initiating explosive package in the preferred embodiment is composed of a delay hole detonator and 50g of explosive, the detonation time of the initiating explosive package can be set through the delay detonator, and then the detonation is controlled through the detonator arranged on the ground surface.
The water bag 3 used in the preferred embodiment is a cylindrical plastic film bag with the thickness of 2mm, after being detonated by the initiating explosive, the water bag can rapidly generate a large amount of water mist in the surrounding air, and the raised dust generated by the subsequent blasting sinks under the action of the water mist, so that the problem of raised dust in the open blasting process of the mine area is effectively solved.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (4)
1. A deep hole large-caliber water pressure blasting method is characterized by comprising the following steps:
excavating a plurality of deep holes;
filling explosive in each deep hole to form a explosive column layer, arranging a first initiating explosive bag at the left side position below the inner part of the explosive column layer, and arranging a second initiating explosive bag at the middle position above the inner part of the explosive column layer;
filling rock slag on the explosive column layer to form a rock slag layer;
and a water bag is arranged above the rock slag layer, and a third initiating explosive bag is arranged on the right side of the water bag.
2. The deep-hole large-caliber hydraulic blasting method according to claim 1, wherein the first initiating explosive package and the second initiating explosive package are respectively connected with a first surface detonator through leads, and the first surface detonator and the third initiating explosive package are respectively connected with a second surface detonator through leads.
3. The deep-hole large-caliber hydraulic blasting method according to claim 1, wherein the first initiating explosive cartridge and the second initiating explosive cartridge explode after a delay of 375ms and 400 ms.
4. The deep-hole large-caliber hydraulic blasting method according to claim 1, wherein the water bag is a cylindrical plastic film bag with a thickness of 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066053.9A CN111207636A (en) | 2020-01-20 | 2020-01-20 | Deep hole large-diameter hydraulic blasting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066053.9A CN111207636A (en) | 2020-01-20 | 2020-01-20 | Deep hole large-diameter hydraulic blasting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111207636A true CN111207636A (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010066053.9A Pending CN111207636A (en) | 2020-01-20 | 2020-01-20 | Deep hole large-diameter hydraulic blasting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111207636A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453818B1 (en) * | 1996-10-18 | 2002-09-24 | Orica Explosives Technology Pty Ltd. | Method of controlled blasting |
| CN202255143U (en) * | 2011-09-28 | 2012-05-30 | 内蒙古生力中伟爆破集团有限公司 | Spaced loading structure of blasthole |
| CN103925855A (en) * | 2014-04-18 | 2014-07-16 | 武汉爆破有限公司 | Blasting dust precipitation method |
| CN204594355U (en) * | 2015-01-09 | 2015-08-26 | 葛洲坝易普力股份有限公司 | A kind of safety detonator of wiring harness protection module and initiation system |
| CN109238048A (en) * | 2018-09-10 | 2019-01-18 | 兖州中材建设有限公司 | A kind of outdoor limestone mine explosion dust-removing method |
-
2020
- 2020-01-20 CN CN202010066053.9A patent/CN111207636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453818B1 (en) * | 1996-10-18 | 2002-09-24 | Orica Explosives Technology Pty Ltd. | Method of controlled blasting |
| CN202255143U (en) * | 2011-09-28 | 2012-05-30 | 内蒙古生力中伟爆破集团有限公司 | Spaced loading structure of blasthole |
| CN103925855A (en) * | 2014-04-18 | 2014-07-16 | 武汉爆破有限公司 | Blasting dust precipitation method |
| CN204594355U (en) * | 2015-01-09 | 2015-08-26 | 葛洲坝易普力股份有限公司 | A kind of safety detonator of wiring harness protection module and initiation system |
| CN109238048A (en) * | 2018-09-10 | 2019-01-18 | 兖州中材建设有限公司 | A kind of outdoor limestone mine explosion dust-removing method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200529 |