CN211287749U - A ventilation dust device for tunnel entrance to a cave - Google Patents
A ventilation dust device for tunnel entrance to a cave Download PDFInfo
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- CN211287749U CN211287749U CN201922207634.5U CN201922207634U CN211287749U CN 211287749 U CN211287749 U CN 211287749U CN 201922207634 U CN201922207634 U CN 201922207634U CN 211287749 U CN211287749 U CN 211287749U
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Abstract
The utility model discloses a ventilation dust device for tunnel entrance to a cave, including tunnel and road surface, an forced draught blower is installed to the inboard right-hand member import department in tunnel, and on the forced draught blower was fixed in the road surface, dust device was installed to the inboard left end in tunnel, and dust device includes drainage pipe, cistern, first drain pipe, intake pipe, suction fan, second drain pipe and gentle wind filter. The utility model is used for tunnel entrance to a cave department can ventilate the dust fall to the tunnel inside, guarantees that the air in the tunnel flows, can play certain suppression to the dust that flies upward in the tunnel simultaneously, guarantees the driving safety in the tunnel.
Description
Technical Field
The utility model relates to a tunnel dust keeper technical field, specifically a ventilation dust device for tunnel entrance to a cave.
Background
The tunnel excavation is usually carried out by adopting a drilling blasting method, which inevitably generates a large amount of dust. The high concentration of dust not only affects the health of the workers, but also adversely affects the subsequent construction operations. At present, the tunnel ventilation mostly adopts a press-in type ventilation mode, and dust generated on the tunnel face and the tunnel body is brought out of the tunnel. However, the dust near the opening of the tunnel is diffused inevitably to pollute the surrounding environment, and particularly when the tunnel is near a residential area, the dust generated by construction easily causes contradiction between residents and construction units, and influences the construction progress. The realization of tunnel entrance to a cave dust fall has two ways, firstly reduces the interior dust concentration of hole, secondly directly at the entrance to a cave dust fall. Specific dust settling methods are formed aiming at the two approaches, but the two approaches have many defects.
Through search discovery, the utility model of patent No. CN201820413017.3 discloses a ventilation and dust-settling device for a tunnel portal in construction, which belongs to the technical field of tunnel dust-proof devices, and comprises a hollow ventilation pipe which is communicated from left to right, and also comprises a drain pipe, a water tank and a water suction pipe; the inner wall of the ventilation pipe is provided with a water delivery pipe; the water delivery pipe is provided with an atomizing nozzle; the water tank is arranged below the ventilation pipe; the water tank is divided into a water tank sewage cavity and a water tank clean water cavity; one end of the drain pipe is communicated with the ventilation pipe, and the other end of the drain pipe is communicated with the sewage cavity of the water tank; one end of the water suction pipe is communicated with the water delivery pipe, and the other end is communicated with the water purifying cavity of the water tank. This ventilation dust device, simple structure, degree of automation is high, safe and reliable, and the effect of ventilation dust fall is realized to the resource saving, utilizes the circulating water, can effectively solve tunnel entrance to a cave dust problem.
However, in the actual application of the scheme, due to the influence of the flow rate of air supplied by the fan, a small part of dust is not contacted with water sprayed from the water conveying pipe, so that the dust flies out, and the dust falling quality is influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned not enough, the utility model provides a ventilation dust device for tunnel entrance to a cave herein, this dust device carries out the deceleration to the wind of higher velocity of flow after the air supply, makes its water that can make with the spray pipe contact, has improved the dust fall quality, simultaneously because the effect of filter, can the separation to the filter with great granule, flows to bottom discharge with water contact.
The utility model is realized in such a way, a ventilation and dust-settling device for tunnel portal is constructed, which comprises a tunnel and a road surface, wherein an air feeder is arranged at the inlet of the right end inside the tunnel, the air feeder is fixed on the road surface, and the dust-settling device is arranged at the left end inside the tunnel; the dust settling device comprises a drainage pipeline, a reservoir, a first drainage pipe, an air inlet pipe, a suction fan, a second drainage pipe and a slow-air filtering plate; an air suction port of the suction fan is positioned in the tunnel, and an air supply port of the suction fan is connected with the air inlet pipe; the other end of the air inlet pipe is connected with a drainage pipeline, and the other end of the drainage pipeline extends out of the tunnel; the air-buffering filter plate is arranged inside the drainage pipeline.
Furthermore, the shape of the air inlet pipe is funnel-shaped, and the small end of the air inlet pipe is connected with an air supply outlet of the suction fan in a penetrating way.
Further, the slow-air filter plate is square and is arranged in the drainage pipeline in an inclined mode at 45 degrees.
Furthermore, a plurality of through holes are formed in the slow air filtering plate, a plurality of vertical grooves are formed in one side of the slow air filtering plate, and a transverse groove is further formed in the top end of the side of the slow air filtering plate.
Furthermore, one end of the first drainage pipe is inserted into a transverse groove formed in the air buffering filter plate, and the other end of the first drainage pipe penetrates through the drainage pipe and is inserted into the reservoir.
Furthermore, the end of the first drainage pipe inserted into the drainage pipe is closed, the first drainage pipe is inserted into the drainage pipe, and a plurality of water outlet holes are formed in the circumference of the part of the first drainage pipe inserted into the drainage pipe.
Furthermore, the second drain pipe is located the rear end of delaying the wind filter, and inside drainage pipe was inserted to one end, and the other end is inserted inside the cistern.
Furthermore, one end of the second water drainage pipe inserted into the water drainage pipe is closed, the second water drainage pipe is inserted into the water drainage pipe, and a plurality of water outlet holes are formed in the circumference of the second water drainage pipe.
Furthermore, the bottom end of the inner side of the drainage pipeline is provided with a concave arc groove.
The utility model discloses following beneficial effect has:
the utility model discloses simple structure, reasonable in design, in use not only can discharge the waste gas in the tunnel, can also filter and the dust fall the dust in the waste gas, guarantees that the dust can not follow in the tunnel and discharge into the outside atmosphere, has protected ecological environment.
The utility model discloses in, through the structure of reasonable design gentle wind filter can with in the waste gas great particle filtration to the board to through the drain pipe discharged water and the granule contact of upper end installation, fall to the inboard bottom of drainage pipe of lower extreme.
The installation form of delaying the wind filter through reasonable design can be with the more convenient drainage pipe inboard bottom to the lower extreme of arranging of granule on the filter, prevent attached on the board, cause the jam.
The concave arc groove formed at the bottom of the inner side of the drainage pipeline is reasonably designed to realize the drainage function.
The shape through the first drain pipe of reasonable design and second drain pipe can make the discharged water sputter drainage pipe's inside, guarantees that the wind energy of outflow can carry out abundant contact in the discharged water, improves the dust fall quality.
Drawings
Fig. 1 is a schematic structural view of the utility model;
fig. 2 is a front view of the present invention;
fig. 3 is a rear view of the present invention;
FIG. 4 is a top view of the present invention with the tunnel removed;
FIG. 5 is a schematic structural view of the moderate air filtering plate of the present invention;
in the figure: 1. a pavement; 2. a tunnel; 3. a blower; 4. a water discharge pipeline; 5. a reservoir; 6. a first drain pipe; 7. an air inlet pipe; 8. a suction fan; 9. a second drain pipe; 10. the air-buffering filter plate.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an improve and provide a ventilation dust device for tunnel entrance to a cave here, a forced draught blower 3 is installed to the inboard right-hand member import department in tunnel 2, and on forced draught blower 3 was fixed in road surface 1, dust device was installed to the inboard left end in tunnel 2.
The dust settling device comprises a drainage pipeline 4, a reservoir 5, a first drainage pipeline 6, an air inlet pipe 7, a suction fan 8, a second drainage pipeline 9 and a slow air filtering plate 10.
An air suction port of the suction fan 8 is positioned inside the tunnel 2, and an air supply port of the suction fan 8 is connected with the air inlet pipe 7. The air inlet pipe 7 is funnel-shaped, and the small end of the air inlet pipe is connected with an air supply outlet of the suction fan 8 in a penetrating way. The other end of the air inlet pipe 7 is connected with the drainage pipeline 4, and the other end of the drainage pipeline 4 extends out of the tunnel 2. The bottom end of the inner side of the drainage pipeline 4 is provided with a concave arc groove.
The slow air filtering plate 10 is square and is arranged in the drainage pipeline 4 in an inclined manner at 45 degrees. A plurality of through holes are formed in the slow air filtering plate 10, a plurality of vertical grooves are formed in one side of the slow air filtering plate 10, and a transverse groove is further formed in the top end of the side of the slow air filtering plate.
One end of the first water drainage pipe 6 is inserted into a transverse groove formed in the air buffering filter plate 10, and the other end of the first water drainage pipe passes through the water drainage pipe 4 and is inserted into the water storage pool 5.
One end of the first water drainage pipe 6 inserted into the water drainage pipe 4 is sealed, the first water drainage pipe 6 is inserted into the part of the water drainage pipe 4, and a plurality of water outlet holes are formed in the circumference of the part.
The second drain pipe 9 is located at the rear end of the air-buffering filter plate 10, one end of the second drain pipe is inserted into the drainage pipe 4, and the other end of the second drain pipe is inserted into the reservoir.
One end of the second water discharge pipe 9 inserted into the water discharge pipe 4 is closed, the second water discharge pipe 9 is inserted into the water discharge pipe 4, and a plurality of water outlet holes are formed in the circumference of the second water discharge pipe 9.
When using, inside forced draught blower 3 arranged outside fresh air into tunnel 2, suction fan 8 inhaled the 2 inside muddy waste gas in tunnel and gone into intake pipe 7 side by side, continuously carry to slow wind filter 10 department, slow wind filter 10 filters the great granule in the waste gas to the face on, all the other waste gases continue to advance at drainage pipe 4, the drainage of first drain pipe 6 on the slow wind filter 10 flows to the 4 inboard bottoms of drainage pipe of lower extreme along slow wind filter 10, and break great particulate matter on the face, guarantee that slow wind filter 10 does not cause the jam, second drain pipe 9 discharged water contacts with other waste gas, wash the dust in the waste gas to drainage pipe 4 inboardly, realize the dust fall.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A ventilation dust-settling device for a tunnel portal is characterized in that; an air feeder (3) is installed at the inlet of the right end of the inner side of the tunnel (2), the air feeder (3) is fixed on the road surface (1), and a dust falling device is installed at the left end of the inner side of the tunnel (2);
the dust settling device comprises a drainage pipeline (4), a reservoir (5), a first drainage pipeline (6), an air inlet pipe (7), a suction fan (8), a second drainage pipeline (9) and a slow-air filtering plate (10);
an air suction port of the suction fan (8) is positioned inside the tunnel (2), and an air supply port of the suction fan (8) is connected with the air inlet pipe (7);
the other end of the air inlet pipe (7) is connected with the drainage pipeline (4), and the other end of the drainage pipeline (4) extends out of the tunnel (2);
the air-buffering filter plate (10) is arranged inside the drainage pipeline (4).
2. A ventilation and dust-fall device for tunnel portals according to claim 1, characterized in that the inlet duct (7) is funnel-shaped with its small end connected through the supply opening of the suction fan (8).
3. The ventilation and dust-settling device for the tunnel portal according to claim 1, wherein the air-slowing filter plate (10) is square and is installed in the drainage pipeline (4) at an inclination of 45 degrees.
4. The ventilation and dust fall device for the tunnel portal according to claim 3, wherein the air-slowing filter plate (10) is provided with a plurality of through holes, one side of the air-slowing filter plate (10) is provided with a plurality of vertical grooves, and the top end of the side is further provided with a transverse groove.
5. The ventilation and dust-fall device for the tunnel portal according to claim 1, wherein one end of the first drainage pipe (6) is inserted into a transverse groove formed in the slow air filtering plate (10), and the other end of the first drainage pipe passes through the drainage pipe (4) and is inserted into the water storage tank (5).
6. The ventilation and dust fall device for the tunnel portal according to claim 5, wherein one end of the first drainage pipe (6) inserted into the drainage pipe (4) is closed, and the part of the first drainage pipe (6) inserted into the drainage pipe (4) is provided with a plurality of water outlet holes on the circumference.
7. The ventilation and dust-fall device for tunnel portal according to claim 1, characterized in that the second drain pipe (9) is located at the rear end of the slow air filter plate (10), one end is inserted inside the drain pipe (4), and the other end is inserted inside the reservoir.
8. The ventilation and dust fall device for the tunnel portal according to claim 7, wherein one end of the second water discharge pipe (9) inserted into the water discharge pipe (4) is closed, and the part of the second water discharge pipe (9) inserted into the water discharge pipe (4) is provided with a plurality of water outlet holes on the circumference.
9. The ventilation and dust fall device for the tunnel portal according to claim 1, wherein the inner bottom end of the drainage pipeline (4) is provided with a concave arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207634.5U CN211287749U (en) | 2019-12-11 | 2019-12-11 | A ventilation dust device for tunnel entrance to a cave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922207634.5U CN211287749U (en) | 2019-12-11 | 2019-12-11 | A ventilation dust device for tunnel entrance to a cave |
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| Publication Number | Publication Date |
|---|---|
| CN211287749U true CN211287749U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922207634.5U Active CN211287749U (en) | 2019-12-11 | 2019-12-11 | A ventilation dust device for tunnel entrance to a cave |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483162A (en) * | 2020-12-23 | 2021-03-12 | 中交隧道工程局有限公司 | Trolley integrated with adsorption type dust falling structure and dust falling method thereof |
| CN112696221A (en) * | 2020-12-28 | 2021-04-23 | 华北理工大学 | Well rescue drilling air pressurize ventilation equipment |
-
2019
- 2019-12-11 CN CN201922207634.5U patent/CN211287749U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483162A (en) * | 2020-12-23 | 2021-03-12 | 中交隧道工程局有限公司 | Trolley integrated with adsorption type dust falling structure and dust falling method thereof |
| CN112696221A (en) * | 2020-12-28 | 2021-04-23 | 华北理工大学 | Well rescue drilling air pressurize ventilation equipment |
| CN112696221B (en) * | 2020-12-28 | 2023-02-14 | 华北理工大学 | Well rescue drilling air pressurize ventilation equipment |
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