CN110174033B - Integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock stratum - Google Patents
Integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock stratum Download PDFInfo
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- CN110174033B CN110174033B CN201811227889.1A CN201811227889A CN110174033B CN 110174033 B CN110174033 B CN 110174033B CN 201811227889 A CN201811227889 A CN 201811227889A CN 110174033 B CN110174033 B CN 110174033B
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- expansion material
- blasting
- remote control
- isolation
- explosive
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/28—Cartridge cases characterised by the material used, e.g. coatings
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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
- F42D1/04—Arrangements for ignition
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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
Abstract
An integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock strata comprises an explosion device and a remote control device. The explosive device comprises a rear packaging element, a wrapping element, a front packaging element, an explosive material packaging device, an isolation element, a first-class expansion material product, a second-class expansion material product, a detonator and an explosive material; the rear packaging element, the wrapping element and the front packaging element are sequentially connected to form a closed container for containing expansion material products, the two products are separated through the isolation element, and after the explosion device is loaded into a pre-constructed explosion drill hole, the isolation element loses the isolation effect through a mechanical mode or an electrical mode, so that the expansion material products are mixed to generate an expansion material, and hole sealing is realized. The invention can effectively reduce the labor intensity of workers and improve the blasting efficiency.
Description
Technical Field
The invention relates to an integrated remote control blasting device for pressure relief blasting of a coal mine underground coal rock stratum.
Background
Coal mine production is inevitably affected by coal rock stratum pressure, and occurrence of serious disasters such as roof caving disasters, rock burst disasters and gas outburst disasters are closely related to the coal rock stratum pressure, so that in coal mine production, pressure relief operation needs to be performed on a part where the coal rock stratum pressure is obviously displayed so as to weaken the mine pressure display influence. The pressure relief method comprises water injection pressure relief, liberation layer mining pressure relief, blasting pressure relief and the like at present, wherein the blasting pressure relief mode is the most extensive pressure relief method due to the fact that implementation conditions are easy to meet. However, in the current blasting pressure relief method, a worker generally drills a borehole in a coal formation, then inserts a detonator into an explosive, then sends the detonator into the borehole, then sends a hole sealing material into the borehole, and then connects the detonators of a plurality of boreholes to detonate by using an initiator at a specified distance. As the depth of the drill hole for blasting is dozens of meters generally, and the time consumption is very long when one drill hole is filled and sealed according to the requirement, the conventional blasting method has the defects of high labor intensity of workers, low blasting efficiency and the like.
In summary, at present, there is no blasting method which can significantly reduce the labor intensity of workers and significantly improve the charging efficiency.
Disclosure of Invention
The invention provides an integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock formations, which aims to solve the technical problems of high labor intensity of workers and low charging efficiency in a blasting method.
The technical scheme adopted by the invention is as follows:
an integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock strata comprises an explosion device and a remote control device; the explosive device comprises a rear packaging element, a wrapping element, a front packaging element, an explosive material packaging device, an isolation element, a first-class expansion material product, a second-class expansion material product, a detonator and an explosive material;
the rear packaging element, the wrapping element and the front packaging element are sequentially connected to form a closed container for containing the first-class expansion material product and the second-class expansion material product, the first-class expansion material product and the second-class expansion material product are separated through the isolation element, and after the explosion device is filled into a pre-constructed explosion drill hole, the isolation element loses the isolation effect in a mechanical mode or an electrical mode, so that the first-class expansion material product and the second-class expansion material product are mixed to generate an expansion material; the expansion force generated by the expansion material or the generated heat or the generated gas or liquid is enough to cause the encapsulation element to be damaged, so that part or all of the expansion material is in contact with the wall of the blasting borehole, and bonding force or friction force is generated between the expansion material and the wall of the borehole; the explosive material packer is used for packing the detonator and the explosive material, and the explosive material packer is connected with the front packing element; and after the explosive device is loaded into the explosive drill hole and the explosive drill hole is sealed by generating an expansion material, operating the detonator by using the remote control device to detonate the explosive material.
In the integrated remote control blasting device for pressure-relief blasting of the coal mine underground coal rock stratum, the rear packaging element is made of an elastic material, the isolation element is made of paper or a plastic film, and the rear packaging element is provided with a reaction element; when the expansion material is produced by mixing the first expansion material product and the second expansion material product, the reaction element is inserted into the isolation element and penetrates through the isolation element by pressing the rear packaging element, and the reaction element can return to the original position after the pressing on the rear packaging element is released, so that the first expansion material product and the second expansion material product are mixed through a channel formed by the isolation element, and the expansion material is produced.
In the integrated remote control blasting device for pressure-relief blasting of the coal mine underground coal rock stratum, the reaction element is a cylindrical element.
In the integrated remote control blasting device for pressure-relief blasting of the coal mine underground coal rock stratum, the reaction element comprises a plurality of uniformly distributed rod-shaped objects.
In the integrated remote control blasting device for pressure-relief blasting of the coal mine underground coal rock stratum, the rear packaging element is made of hard rubber or plastic.
In the integrated remote control blasting device for pressure-relief blasting of the coal mine underground coal rock stratum, the wrapping element is made of paper materials.
Compared with the prior art, the system and the method of the invention have the following advantages:
the invention provides an integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock formations, which can lead the whole charging and hole-sealing process to be industrialized because explosive materials, first-class expansion material products and second-class expansion materials for hole sealing are packaged in the integrated remote control blasting device in a factory in advance, thereby greatly improving the charging and hole-sealing efficiency and reducing the labor intensity of workers.
The invention also provides an integrated remote control blasting device for pressure relief blasting of the coal mine underground coal rock stratum, which is characterized in that a closed container for packaging a first-class expansion material product and a second-class expansion material product is divided into a rear packaging element, a wrapping element and a front packaging element, and the three parts are made of different materials, so that the expansion material is prevented from overflowing to the outside of the hole by the rear packaging element in practical application, the hole sealing quality cannot be influenced, and the wrapping element is made of a paper material, so that the tight contact between the expansion material and the hole wall cannot be influenced.
The invention also provides an integrated remote control blasting device for pressure relief blasting of the coal mine underground coal rock stratum, which is characterized in that an isolation element is adopted to enable a first-class expansion material product and a second-class expansion material product to be divided into a front chamber and a rear chamber, and a first-class expansion material product and a second-class expansion material product are formed into a mixing channel by penetrating the isolation element after the integrated remote control blasting device is completely arranged in a drill hole.
The invention provides an integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock formations, which is characterized in that a reaction element is arranged on a rear packaging element, the rear packaging element is made of elastic materials, and the reaction element can penetrate through an isolation element under elastic deformation of the rear packaging element and can be restored to the original position along with restoration of the rear packaging element.
The integrated remote control blasting device for pressure relief blasting of the coal mine underground coal rock stratum provided by the invention has the advantages that the reaction element is arranged on the rear packaging element and integrated in the integrated remote control blasting device, and no tool for arranging a first-class expansion material product and a second-class expansion material product is needed, so that the structure is more compact and the use is more convenient.
Drawings
In order that the summary of the invention may be more readily understood, the invention will now be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of a blasting device in an integrated remote control blasting device for pressure-relief blasting of coal mine underground coal strata (reaction elements are not shown) according to the invention;
FIG. 2 is a schematic structural diagram of a remote control device in the integrated remote control blasting device for pressure-relief blasting of coal mine underground coal strata according to the invention;
FIG. 3 is a partially enlarged view of an embodiment of an integrated remote control blasting device for pressure-relief blasting of a coal mine underground coal seam according to the invention;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a partial enlarged view of a second embodiment of the integrated remote controlled blasting apparatus for pressure relief blasting of coal mine underground coal seams according to the present invention;
fig. 6 is a sectional view taken along line B-B of fig. 5.
Labeled as: 1-rear packaging element, 2-wrapping element, 3-front packaging element, 4-explosive material packaging device, 5-isolation element, 6-first-class expansion material product, 7-second-class expansion material product, 8-detonator, 9-explosive material, 10-remote control device and 11-reaction element.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1-6 show a preferred embodiment of the integrated remote control blasting device for pressure relief blasting of coal mine underground coal strata according to the invention.
Example one
The integrated remote control blasting device for pressure-relief blasting of the coal mine underground coal rock stratum comprises an explosion device and a remote control device 10.
The explosive device comprises a rear packaging element 1, a wrapping element 2, a front packaging element 3, an explosive material packaging device 4, an isolation element 5, a first type expansion material product 6, a second type expansion material product 7, a detonator 8 and an explosive material 9.
The rear packaging element 1, the wrapping element 2 and the front packaging element 3 are connected in sequence to form a closed container for containing the first-type expansion material product 6 and the second-type expansion material product 7, and the first-type expansion material product 6 and the second-type expansion material product 7 are separated by the isolation element 5.
The rear packaging element 1 is provided with a reaction element 11, after the explosive device is loaded into a pre-constructed blasting borehole, the isolation element 5 extrudes the rear packaging element 1 to lose the isolation effect, so that the first expansion material product 6 and the second expansion material product 7 are mixed to generate the expansion material.
The expansion force generated by the intumescent material or the heat generated or the gas or liquid generated is sufficient to cause the containment element 2 to fail such that some or all of the intumescent material contacts the blast borehole wall, creating a bond or friction between the intumescent material and the wall of the borehole.
The explosive material packer 9 is used for packing the detonator 8 and the explosive material 9, and the explosive material packer 9 is fixedly or detachably connected with the front packing element 3.
After the explosive device is loaded into the blast borehole and the blast borehole is closed by producing an expandable material, the detonator 8 is operated by the remote control device 10 to detonate the explosive material 9.
In this embodiment, the rear packaging element 1 is made of hard rubber or plastic, the wrapping element 2 is made of paper material, the isolation element 5 is made of paper or plastic film, and the reaction element 11 is a cylindrical element.
When the first type expanding material product 6 and the second type expanding material product 7 need to be mixed to generate the expanding material, the reaction element 11 is inserted into the isolation element 5 and penetrates through the isolation element by pressing the rear packaging element 1, and after the pressing on the rear packaging element 1 is released, the reaction element 11 can return to the original position, so that the first type expanding material product 6 and the second type expanding material product 7 are mixed through a channel formed by the isolation element 5 to generate the expanding material.
Example two
The second embodiment is substantially the same as the first embodiment, but the reaction element 11 is a plurality of rods uniformly distributed.
It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the scope of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (5)
1. An integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock strata is characterized in that: comprising an explosive device and a remote control device (10);
the explosion device comprises a rear packaging element (1), a wrapping element (2), a front packaging element (3), an explosion material packaging device (4), an isolation element (5), a first-class expansion material product (6), a second-class expansion material product (7), a detonator (8) and an explosion material (9);
the rear packaging element (1), the wrapping element (2) and the front packaging element (3) are sequentially connected to form a closed container for containing the first-class expansion material product (6) and the second-class expansion material product (7), the first-class expansion material product (6) and the second-class expansion material product (7) are separated through the isolation element (5), and after the explosion device is arranged in a pre-constructed explosion drill hole, the isolation element (5) loses isolation effect through a mechanical mode or an electrical mode, so that the first-class expansion material product (6) and the second-class expansion material product (7) are mixed to generate an expansion material;
the expansion force generated by the expansion material or the generated heat or the generated gas or liquid is enough to cause the encapsulation element (2) to be damaged, so that part or all of the expansion material is contacted with the wall of the blasting borehole, and the bonding force or the friction force is generated between the expansion material and the wall of the borehole;
the explosive material encapsulator (4) is used for encapsulating the detonator (8) and the explosive material (9), and the explosive material encapsulator (4) is connected with the front encapsulation element (3);
after the explosive device is loaded into the blast hole and the blast hole is sealed by generating an expansion material, operating the detonator (8) by using the remote control device (10) to detonate the explosive material (9);
the rear packaging element (1) is made of elastic material, the isolation element (5) is made of paper or plastic film, and the rear packaging element (1) is provided with a reaction element (11);
when the expansion material is generated by mixing the first expansion material generation (6) and the second expansion material generation (7), the reaction element (11) is inserted into the isolation element (5) and penetrates through the isolation element by pressing the rear packaging element (1), and after the rear packaging element (1) is released from pressing, the reaction element (11) can return to the original position, so that the first expansion material generation (6) and the second expansion material generation (7) are mixed through a channel formed by the isolation element (5) to generate the expansion material.
2. The integrated remote control blasting device for pressure relief blasting of coal mine underground coal strata according to claim 1, characterized in that: the reaction element (11) is a cylindrical element.
3. The integrated remote control blasting device for pressure relief blasting of coal mine underground coal strata according to claim 2, characterized in that: the reaction element (11) comprises a plurality of evenly distributed rods.
4. The integrated remote controlled blasting apparatus for pressure relief blasting of coal mine underground coal formation according to any one of claims 1 to 3, characterized by: the rear packaging element (1) is made of hard rubber or plastic.
5. The integrated remote controlled blasting apparatus for pressure relief blasting of coal mine underground coal formation according to any one of claims 1 to 3, characterized by: the wrapping element (2) is made of paper materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227889.1A CN110174033B (en) | 2018-10-22 | 2018-10-22 | Integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811227889.1A CN110174033B (en) | 2018-10-22 | 2018-10-22 | Integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock stratum |
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| Publication Number | Publication Date |
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| CN110174033A CN110174033A (en) | 2019-08-27 |
| CN110174033B true CN110174033B (en) | 2021-10-15 |
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| CN201811227889.1A Active CN110174033B (en) | 2018-10-22 | 2018-10-22 | Integrated remote control blasting device for pressure-relief blasting of coal mine underground coal rock stratum |
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| CN113279756B (en) * | 2021-05-19 | 2022-08-12 | 吕梁学院 | Carbon dioxide phase change fracturing permeability increasing system of immobile pipe column and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5497829A (en) * | 1993-11-17 | 1996-03-12 | Foam Concepts, Inc. | Expansion foam borehole plug and method |
| CN101813444A (en) * | 2009-08-20 | 2010-08-25 | 北京维深数码科技有限公司 | Wireless digital electronic detonator explosion system |
| CN102562133B (en) * | 2012-01-16 | 2013-12-11 | 中国矿业大学 | Device and method for sealing and drilling holes of gas drainage |
| CN202866738U (en) * | 2012-10-23 | 2013-04-10 | 路洁心 | Cylindrical hole sealed bag for mine |
| CN103113754A (en) * | 2013-01-04 | 2013-05-22 | 樊运策 | Self-sealing type tamping plug for bursting |
| CN105066804B (en) * | 2015-07-16 | 2017-01-25 | 湖南辰州矿业有限责任公司 | Mine water stemming bag and application of mine water stemming bag in borehole blockage |
| CN106761534A (en) * | 2017-03-24 | 2017-05-31 | 中国矿业大学 | A kind of coal mine down-hole drilling single rubber bladder sealing device and its method for sealing |
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