CN205382950U - A spraying dedusting device for tunnel blasting - Google Patents
A spraying dedusting device for tunnel blasting Download PDFInfo
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- CN205382950U CN205382950U CN201521016981.5U CN201521016981U CN205382950U CN 205382950 U CN205382950 U CN 205382950U CN 201521016981 U CN201521016981 U CN 201521016981U CN 205382950 U CN205382950 U CN 205382950U
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- water pipe
- excavation
- rack
- tunnel
- blasting
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Abstract
The utility model provides a spraying dedusting device for tunnel blasting, is including the excavation rack, and the excavation is provided with the water pipe on the rack, and it has a plurality of spraying aperture to distribute on the water pipe, and water pipe one end is equipped with the end cap, and wind water mixer is connected to the water pipe other end, and wind water mixer connects high -pressure air pipe, high -pressure water pipe respectively, all be provided with the valve on high -pressure air pipe, the high -pressure water pipe. The utility model relates to a spraying dedusting device for tunnel blasting uses water smoke heavy curtain dust fall principle, utilizes tunnel construction's excavation rack, and water smoke heavy curtain dust device installs on the excavation rack. Can remove along tunnel axis along with the excavation rack, not influence the drilling construction of excavation rack, can avoid the atomizer big gun to decrease with excavating outside the rack moves on to safety distance for blasting during the blasting.
Description
Technical field
A kind of atomizing de-dusting apparatus for Tunnel Blasting of this utility model, relates to blast working field.
Background technology
In constructing tunnel tunneling process, a large amount of dust-like particles float things produced after every separate explosion and multiple toxic and harmful, dust-like particles float thing and toxic and harmful can be gathered in narrow tunnel space.How efficiently, reduce dust and harmful smoke concentration in hole quickly, reliably, be not only directly connected to the healthy of workmen, also directly affect duration of a project and Financial cost simultaneously.
Depositing dust after explosion is to allow the thorny problem often felt embarrassed in prior art.Relatively large underground chamber explosion is generally adopted blower fan and coordinates the depositing dust modes such as hydrofilter, and this type of dust falling device dust-laying effect is good, but equipment cost and operating cost are high；Follow tunnel piercing and need to frequently adjust installation.For middle-size and small-size set of tunneling construction, owing to cost restricts, it is more difficult to adopt the equipment such as expensive cleaner unit, it is necessary to find one both economical, blasting dust reducing device easy again.
Summary of the invention
This utility model provides a kind of atomizing de-dusting apparatus for Tunnel Blasting, applies water smoke heavy curtain depositing dust principle, utilizes the excavation stand of constructing tunnel, water smoke heavy curtain device for reducing dust to be installed on excavation stand.Can move along tunnel axis with excavation stand, not affect the drilling construction of excavation stand, can excavation stand be moved on to outside safety distance for blasting during explosion, it is to avoid sprayer unit big gun damages.
This utility model be the technical scheme is that
A kind of atomizing de-dusting apparatus for Tunnel Blasting, including excavation stand, excavation stand is provided with water pipe, on water pipe, distribution has multiple spray holes, water pipe one end is provided with plug, the water pipe other end connects edema due to wind pathogen blender, and edema due to wind pathogen blender connects high-pressure air hose, high-pressure water pipe respectively, and current are formed the High-Pressure Water rich in blister by high-pressure blast effect in the blender of edema due to wind pathogen.Described high-pressure air hose, high-pressure water pipe are provided with valve.Being provided with two drain pipies at excavation stand main framing entablature place, each water pipe is all connected with edema due to wind pathogen blender, and length of pipe is consistent with excavation gantry beam width.Water pipe is spaced a distance and is drilled with spray holes, and spray holes blowing angle is 45 °, the spray holes interlaced arrangement of upper and lower two drain pipies.Water pipe is coating steel pipe, it is easy to cloth hole, and bonding strength is higher, is not easy to corrosion.High-Pressure Water rich in blister sprays from spray holes, forms trickle water smoke fan spray.
A kind of atomizing de-dusting apparatus for Tunnel Blasting of this utility model, technique effect is as follows:
1), water smoke heavy curtain cover whole tunnel cross-section, the atomization globule and flue dust fully adsorb, and dust-laying effect is obvious.
2), can move along tunnel axis with excavation stand, not affect the drilling construction of excavation stand, can excavation stand be moved on to outside safety distance for blasting during explosion, it is to avoid sprayer unit big gun damages.
3), make use of the existing excavation stand of constructing tunnel, high-pressure blast and water under high pressure, one-object-many-purposes, save dust falling device acquisition cost.
4), spray holes blowing angle be 45 °, the spray holes interlaced arrangement of upper and lower two drain pipies, it is simple to formed mist shield tape.
Accompanying drawing explanation
Fig. 1 is this utility model apparatus structure schematic diagram.
Detailed description of the invention
A kind of atomizing de-dusting apparatus for Tunnel Blasting, including excavation stand 2, excavation stand 2 is provided with water pipe 4, on water pipe 4, distribution has multiple spray holes 2, water pipe 4 one end is provided with plug 1 and blocks, water pipe 4 other end connects edema due to wind pathogen blender 8, and edema due to wind pathogen blender 8 connects high-pressure air hose 6, high-pressure water pipe 7 respectively, and described high-pressure air hose 6, high-pressure water pipe 7 are provided with valve 5.
Be provided with the water pipe 4 of two row φ 40mm at excavation stand 2 main framing entablature place, each water pipe 4 is all connected with edema due to wind pathogen blender 8, and water pipe 4 length is consistent with excavation stand 2 beam width.The every 20cm of water pipe 4 is spaced a distance and is drilled with the spray holes 2 of φ 2mm, and spray holes 2 blowing angle is 45 °, spray holes 2 interlaced arrangement of upper and lower two drain pipies 4.
Water pipe 4 is coating steel pipe.
A kind of atomizing de-dusting apparatus for Tunnel Blasting of this utility model, pass to the high-pressure blast used by constructing tunnel and water under high pressure, utilize the extruding mutually between gas medium and liquid medium, accelerate or shear action, atomization of water current is formed water microgranule, forms mist shield tape at tunnel cross-section, under the blast that tunnel blower produces, the dust flue gas of explosion section by mist shield tape to hole external diffusion, with the absorption mutually of water smoke material, quickening settles, and diffuses into air after tunnel inner air-cleaning.
Implement step:
1: before bursting work is detonated, exit excavation stand 2, sprayer unit is advisable from the distance about 30 meters of explosion section, damages apart from the too small big gun that is susceptible to, reduces apart from excessive dust-laying effect.
2: open excavation stand 2 sprayer unit, hydraulic pressure control at 0.5～1.0MPa, the particle diameter of atomized water conveniently, favourable dust-laying effect.
3: after detonating, sprayer unit continuous service, section dust concentration to be blasted drops to criterion of acceptability can stop spraying.The sprayer unit continuous working period is relevant from factors such as explosion section distances with tunnel blower air-supply ventilation ability, sprayer unit.
4: when dress quarrel operation starts, dust falling device is stepped back about 40m as face, not affect dress quarrel operation, it is ensured that depositing dust, muck removal parallel operations.When dress quarrel vehicle crosses excavation stand, sprayer unit also can to its atomizing de-dusting.
Claims (1)
1. the atomizing de-dusting apparatus for Tunnel Blasting, including excavation stand (2), it is characterized in that, excavation stand (2) is provided with water pipe (4), the upper distribution of water pipe (4) has multiple spray holes (2), water pipe (4) one end to be provided with plug (1), and water pipe (4) other end connects edema due to wind pathogen blender (8), edema due to wind pathogen blender (8) connects high-pressure air hose (6), high-pressure water pipe (7) respectively, and described high-pressure air hose (6), high-pressure water pipe are provided with valve on (7)；Being provided with two drain pipies (4) at excavation stand (2) main framing entablature place, each water pipe (4) is all connected with edema due to wind pathogen blender (8), and water pipe (4) length is consistent with excavation stand (2) beam width；Water pipe (4) is spaced a distance and is drilled with spray holes (2), and spray holes (2) blowing angle is 45 °, spray holes (2) interlaced arrangement of upper and lower two drain pipies (4)；Water pipe (4) is coating steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016981.5U CN205382950U (en) | 2015-12-09 | 2015-12-09 | A spraying dedusting device for tunnel blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016981.5U CN205382950U (en) | 2015-12-09 | 2015-12-09 | A spraying dedusting device for tunnel blasting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205382950U true CN205382950U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521016981.5U Active CN205382950U (en) | 2015-12-09 | 2015-12-09 | A spraying dedusting device for tunnel blasting |
Country Status (1)
| Country | Link |
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| CN (1) | CN205382950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965345A (en) * | 2016-10-19 | 2018-04-27 | 上海公路桥梁（集团）有限公司 | Tunnel dust removal method |
-
2015
- 2015-12-09 CN CN201521016981.5U patent/CN205382950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965345A (en) * | 2016-10-19 | 2018-04-27 | 上海公路桥梁（集团）有限公司 | Tunnel dust removal method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 610095 floor 11, block B, No. 288, east section of Fucheng Avenue, high tech Zone, Chengdu, Sichuan Patentee after: Three Gorges Materials Tendering Management Co.,Ltd. Address before: Tian Qiuyu, Sanxiaba District, Yichang City, Hubei Province 443133 Patentee before: YANGTZE THREE GORGES EQUIPMENT & MATERIALS CO.,LTD. |