CN104989446A - Dust degrading system for underground tunnel drilling and blasting - Google Patents
Dust degrading system for underground tunnel drilling and blasting Download PDFInfo
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- CN104989446A CN104989446A CN201510503440.3A CN201510503440A CN104989446A CN 104989446 A CN104989446 A CN 104989446A CN 201510503440 A CN201510503440 A CN 201510503440A CN 104989446 A CN104989446 A CN 104989446A
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- dust
- subterranean tunnel
- blasting
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- tunnel drilling
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Abstract
The invention discloses a dust degrading system for underground tunnel drilling and blasting. A movable sealing door is arranged away from a drilling working face of an underground tunnel by a certain distance, a movable dust removing device is arranged on the movable sealing door, an air inlet pipe of the movable dust removing device is connected with a blower device, and an air outlet pipe of the movable dust removing device is located in the movable sealing door. In the movable dust removing device, the upper portion of a closed shell is provided with an air outlet pipe and a water inlet pipe. An air inlet pipe and a water outlet pipe are arranged at the lower portion of the closed shell, and partition plates which are arranged in a staggered mode are arranged between the air outlet pipe and the air inlet pipe. According to the dust degrading system for underground tunnel drilling and blasting, the movable sealing door is used in cooperation with the circulating type movable dust removing device so that dust in a drilling and blast area can be degraded, the degrading speed is only 10 minutes, and the working efficiency is improved greatly.
Description
Technical field
The present invention relates to construction of underground tunnel field, particularly a kind of subterranean tunnel drilling and blasting dust degeneration system.
Background technology
At present, when just must be provided with a hole more than 2000 meters of length in construction of underground tunnel, length of tunnel just cannot solve more than dust during 800 meters of explosions or get rid of overlong time, and 1000 meters just need dedusting of discharging fume in more than 2 hours.Problems existing arranges a hole to add engineering quantity, and some places do not have condition to increase a hole at all.Smoke evacuation dedusting overlong time has a strong impact on the duration, causes programming slow.
The dust of explosion includes pernicious gas, is directly enter in air for a long time with pump drainage method, unprocessed, pollutes larger.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of subterranean tunnel drilling and blasting dust degeneration system, by within the dedusting time shorten to 10 after explosion minute, can increase work efficiency.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of subterranean tunnel drilling and blasting dust degeneration system, mobile closed door is provided with at the boring work plane certain distance of distance subterranean tunnel, mobile closed door is provided with mobile chock dust remover, the blast pipe of mobile chock dust remover is connected with air-blast device, and the discharge pipe of mobile chock dust remover is positioned within mobile closed door.
Also be provided with the first induced draft fan be positioned at outside subterranean tunnel, the first induced draft fan is connected with the first airduct, and the air intake of the first airduct is positioned within mobile closed door.
Also be provided with the second induced draft fan be positioned at outside subterranean tunnel, the second induced draft fan is connected with the second airduct, and the air intake of the second airduct is positioned at outside mobile closed door.
In described mobile chock dust remover, closure casing top is provided with discharge pipe and water inlet pipe, and closure casing bottom is provided with blast pipe and outlet pipe, is provided with the dividing plate of interlaced arrangement between discharge pipe and blast pipe.
On described dividing plate, at least windward side is provided with fine hair.
Described dividing plate upper and lower surface is provided with fine hair.
Described dividing plate is in tilted layout, and the free end of dividing plate down.
Be provided with lower baffle plate near the position of blast pipe, the top edge of lower baffle plate is higher than the top edge of outlet pipe.
Also overhead gage is provided with in the position near discharge pipe.
Described mobile closed door distance boring work plane 20-30 rice.
A kind of subterranean tunnel drilling and blasting dust degeneration system provided by the invention, by the mobile chock dust remover adopting mobile closed door to coordinate internal-circulation type, can by the dust degraded in drilling and blasting region, degradation speed only needs 10 minutes, significantly improves operating efficiency.Utilize to carry out next circulation drilling and blasting other row's dust period.Can obtain a better air operational face, apparatus and method of the present invention comparatively environmental protection, is conducive to workman healthy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of mobile chock dust remover in the present invention.
Fig. 3 is another structural representation of mobile chock dust remover in the present invention.
In figure: boring work plane 1, mobile closed door 2, air-blast device 3, mobile chock dust remover 4, water inlet pipe 41, outlet pipe 42, blast pipe 43, discharge pipe 44, lower baffle plate 45, overhead gage 46, dividing plate 47, fine hair 48, closure casing 49, subterranean tunnel 5, the first induced draft fan 6, second induced draft fan 6', the first airduct 7, second airduct 7'.
Detailed description of the invention
As in Fig. 1, a kind of subterranean tunnel drilling and blasting dust degeneration system, mobile closed door 2 is provided with at boring work plane 1 certain distance of distance subterranean tunnel 5, mobile closed door 2 is provided with mobile chock dust remover 4, the blast pipe 43 of mobile chock dust remover 4 is connected with air-blast device 3, and the discharge pipe 44 of mobile chock dust remover 4 is positioned within mobile closed door 2.To refer between mobile closed door 2 and boring work plane 1 within space within mobile closed door 2 in this example.
Also be provided with the first induced draft fan 6, first induced draft fan 6 be positioned at outside subterranean tunnel 5 to be connected with the first airduct 7, the air intake of the first airduct 7 is positioned within mobile closed door 2.
Also be provided with the second induced draft fan 6' be positioned at outside subterranean tunnel 5, the second induced draft fan 6' is connected with the second airduct 7', and the air intake of the second airduct 7' is positioned at outside mobile closed door 2.
During use, mobile closed door 2 and mobile chock dust remover 4 are arranged on the key area needing to carry out dedusting work, namely to the position that air quality requirements is comparatively strict, the normally position of distance boring work plane 120-30 rice, the dust that this place produces is more.Its major function is the dust that degraded drilling and blasting produces, and air-blast device 3 is extracted into the dust degraded in mobile chock dust remover 4, then discharges clean air.Mobile chock dust remover 4 is started before explosion is ignited.The new space formed after comprising explosion within 10 minutes, can be got rid of, normally apart from the dust in the distance of work plane 30-50 rice.Workman can enter this region and start next cycle operation.The mud that outlet pipe 42 produces enters network of underground, enters subsequent handling process.
Induced draft fan combines the dust extracting other regions out, can extract the dust in the tunnel of the length of more than 1 km out.This regional dust is less, sustainable pump drainage.
Preferred scheme is as in Fig. 2,3, in described mobile chock dust remover 4, closure casing 49 top is provided with discharge pipe 44 and water inlet pipe 41, closure casing 49 bottom is provided with blast pipe 43 and outlet pipe 42, between discharge pipe 44 and blast pipe 43, be provided with the dividing plate 47 of interlaced arrangement, the dividing plate in this example roughly becomes horizontal arrangement.Structure thus, the water that water inlet pipe 41 enters forms cascade at the free end of dividing plate 47, and the air entered is by the process of cascade, and dust is adsorbed, and the windage of this structure is also less.
Preferred scheme is as in Fig. 2,3 further, and on described dividing plate 47, at least windward side is provided with fine hair 48.Structure thus, in the turnover process of air-flow, heavier dust granule is thrown toward fine hair 48 by the impact of centrifugal force, is adsorbed by moistening fine hair, which further improves the effect of dedusting.Or can reduce the quantity of dividing plate, this contributes to reducing windage.
Preferred scheme is as in Fig. 2,3 further, and described dividing plate 47 upper and lower surface is provided with fine hair 48.Described dividing plate 47 is in tilted layout, usually and the angle of horizontal plane at 3 ~ 10 °, the free end of dividing plate 47 is down.Structure thus, current can flow along dividing plate 47, and make fine hair keep enough moistening, and are conducive to the cascade forming larger area, improve the effect of dust adsorption further.
Be provided with lower baffle plate 45 near the position of blast pipe 43, the top edge of lower baffle plate 45 is higher than the top edge of outlet pipe 42.Structure thus, is conducive to storing mud.
Overhead gage 46 is also provided with in the position near discharge pipe 44.Structure thus, avoids too much steam to be drained into dedusting space, affects the operation of plant equipment.
The present invention can reach good dust-laying effect fast, and system of the present invention can repeated multiple timesly use, and is conducive to environmental protection.
The above embodiments are only the preferred technical solution of the present invention; and should not be considered as restriction of the present invention; the technical scheme that protection scope of the present invention should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection domain.Namely the equivalent replacement within the scope of this improves, also within protection scope of the present invention.
Claims (10)
1. a subterranean tunnel drilling and blasting dust degeneration system, it is characterized in that: be provided with mobile closed door (2) at boring work plane (1) certain distance of distance subterranean tunnel (5), mobile closed door (2) is provided with mobile chock dust remover (4), the blast pipe (43) of mobile chock dust remover (4) is connected with air-blast device (3), and the discharge pipe (44) of mobile chock dust remover (4) is positioned within mobile closed door (2).
2. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 1, it is characterized in that: be also provided with the first induced draft fan (6) be positioned at outside subterranean tunnel (5), first induced draft fan (6) is connected with the first airduct (7), and the air intake of the first airduct (7) is positioned within mobile closed door (2).
3. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 1 and 2, it is characterized in that: be also provided with and be positioned at the second induced draft fan outside subterranean tunnel (5) (6'), (7') (6') second induced draft fan be connected with the second airduct, and the second airduct air intake is (7') positioned at outside mobile closed door (2).
4. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 1, it is characterized in that: in described mobile chock dust remover (4), closure casing (49) top is provided with discharge pipe (44) and water inlet pipe (41), closure casing (49) bottom is provided with blast pipe (43) and outlet pipe (42), is provided with the dividing plate (47) of interlaced arrangement between discharge pipe (44) and blast pipe (43).
5. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 4, is characterized in that: on described dividing plate (47), at least windward side is provided with fine hair (48).
6. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 4, is characterized in that: described dividing plate (47) upper and lower surface is provided with fine hair (48).
7., according to a kind of subterranean tunnel drilling and blasting dust degeneration system described in claim 4 ~ 6, it is characterized in that: described dividing plate (47) is in tilted layout, and the free end of dividing plate (47) down.
8. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 4, is characterized in that: be provided with lower baffle plate (45) near the position of blast pipe (43), and the top edge of lower baffle plate (45) is higher than the top edge of outlet pipe (42).
9. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 4, is characterized in that: be also provided with overhead gage (46) in the position near discharge pipe (44).
10. a kind of subterranean tunnel drilling and blasting dust degeneration system according to claim 1, is characterized in that: described mobile closed door (2) distance boring work plane (1) 20-30 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503440.3A CN104989446B (en) | 2015-08-17 | 2015-08-17 | Dust degrading system for underground tunnel drilling and blasting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510503440.3A CN104989446B (en) | 2015-08-17 | 2015-08-17 | Dust degrading system for underground tunnel drilling and blasting |
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| Publication Number | Publication Date |
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| CN104989446A true CN104989446A (en) | 2015-10-21 |
| CN104989446B CN104989446B (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510503440.3A Active CN104989446B (en) | 2015-08-17 | 2015-08-17 | Dust degrading system for underground tunnel drilling and blasting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268054A (en) * | 2018-11-29 | 2019-01-25 | 中钢集团马鞍山矿山研究院有限公司 | It is a kind of for underground big cross section, the ventilating and purifying air system in long distance driving face |
| CN112576297A (en) * | 2020-11-26 | 2021-03-30 | 中电建路桥集团有限公司 | Tunnel blasting dust falling device and dust falling method |
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| JP2003106593A (en) * | 2001-09-28 | 2003-04-09 | Ohmoto Gumi Co Ltd | Dust removing device for tunnel work |
| CN1888396A (en) * | 2006-07-21 | 2007-01-03 | 王新民 | Moving air curtain type smoke and dust removing method and apparatus thereof |
| CN201486583U (en) * | 2009-07-22 | 2010-05-26 | 中国瑞林工程技术有限公司 | Efficient ventilation car for underground tunneling |
| CN102213105A (en) * | 2011-05-31 | 2011-10-12 | 金承官 | Mobile self-cleaning dry dust-collecting and ventilating equipment used in tunnel construction |
| CN204877532U (en) * | 2015-08-17 | 2015-12-16 | 葛洲坝集团第一工程有限公司 | Subterranean tunnel drilling -and -blasting dust degradation system |
-
2015
- 2015-08-17 CN CN201510503440.3A patent/CN104989446B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003106593A (en) * | 2001-09-28 | 2003-04-09 | Ohmoto Gumi Co Ltd | Dust removing device for tunnel work |
| CN1888396A (en) * | 2006-07-21 | 2007-01-03 | 王新民 | Moving air curtain type smoke and dust removing method and apparatus thereof |
| CN201486583U (en) * | 2009-07-22 | 2010-05-26 | 中国瑞林工程技术有限公司 | Efficient ventilation car for underground tunneling |
| CN102213105A (en) * | 2011-05-31 | 2011-10-12 | 金承官 | Mobile self-cleaning dry dust-collecting and ventilating equipment used in tunnel construction |
| CN204877532U (en) * | 2015-08-17 | 2015-12-16 | 葛洲坝集团第一工程有限公司 | Subterranean tunnel drilling -and -blasting dust degradation system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268054A (en) * | 2018-11-29 | 2019-01-25 | 中钢集团马鞍山矿山研究院有限公司 | It is a kind of for underground big cross section, the ventilating and purifying air system in long distance driving face |
| CN109268054B (en) * | 2018-11-29 | 2020-05-19 | 中钢集团马鞍山矿山研究院有限公司 | Ventilation and dust removal system for underground large-section and long-distance tunneling surface |
| CN112576297A (en) * | 2020-11-26 | 2021-03-30 | 中电建路桥集团有限公司 | Tunnel blasting dust falling device and dust falling method |
| CN112576297B (en) * | 2020-11-26 | 2023-01-17 | 中电建路桥集团有限公司 | Tunnel blasting dust falling device and dust falling method |
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| CN104989446B (en) | 2017-05-10 |
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Address after: 443002 Yichang, Hubei Dongshan Avenue, No. 54, a company in Gezhouba Dam Applicant after: CHINA GEZHOUBA GROUP NO.1 ENGINEERING CO., LTD. Address before: 443000 Dongshan Avenue, Hubei, Yichang, No. 54 Applicant before: Gezhouba Group No.1 Engineering Co., Ltd. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tang Yongquan Inventor after: Li Zhihua Inventor after: Guo Yanzhao Inventor after: Hu Fanghua Inventor after: Tu Sheng Inventor after: Lin Wenbin Inventor after: Zhang Xiaohua Inventor after: Zhong Changlong Inventor after: Wang Chao Inventor before: Tang Yongquan Inventor before: Li Zhihua Inventor before: Hu Fanghua Inventor before: Tu Sheng Inventor before: Lin Wenbin Inventor before: Zhang Xiaohua Inventor before: Zhong Changlong Inventor before: Wang Chao |
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