CN212881601U - Dust device outside hole - Google Patents
Dust device outside hole Download PDFInfo
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- CN212881601U CN212881601U CN202020733472.9U CN202020733472U CN212881601U CN 212881601 U CN212881601 U CN 212881601U CN 202020733472 U CN202020733472 U CN 202020733472U CN 212881601 U CN212881601 U CN 212881601U
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Abstract
The utility model relates to an out-of-tunnel dust settling device, which comprises an air supply pipe, an exhaust pipe, a box body, a control cabinet and a spray pump; the blast pipe and the exhaust pipe are both arranged at the top of the tunnel; the box body is provided with a plurality of filter windows, the top in the box body is also provided with a dust concentration sensor, and the box body is also provided with a spraying header; a plurality of atomizing nozzles are arranged on the spraying collecting pipe, and an air inlet pipe is arranged above the spraying collecting pipe; one end of the air inlet pipe extends out of the box body, and a plurality of air outlet holes are formed in the air inlet pipe body in the box body; one end of the air inlet pipe, which extends out of the box body, is connected with the exhaust pipe through a pipeline, and an exhaust fan is arranged on the pipeline between the exhaust pipe and the air inlet pipe; an air supply fan is arranged on the air supply pipe; the spray pump is connected with the spray header through a pipeline. The utility model discloses the cost is low, and the operation maintenance cost is low, economical and practical, simple easy operation has fine dust removal dust fall effect, can reduce the pollution of tunnel construction to peripheral resident and environment.
Description
Technical Field
The utility model relates to a tunnel construction equipment technical field, concretely relates to dust device outside hole.
Background
In the tunnel construction, a large amount of rock-soil dust that the entry driving machine excavation produced is one of the important factors of air pollution, also directly endangers job site personnel's health and safety simultaneously, and the tunnel passes in and out the back position periphery and has the resident of standing always in addition, directly can influence local resident's life with the dust emission. At present, two types of forced ventilation and suction type are generally adopted for the ventilation and dust removal modes of tunnel construction, the forced ventilation and dust removal scheme has the advantages that dirty air on a working face can be quickly removed, the defect is that the dirty air flows through the whole tunnel, the forced ventilation and dust removal scheme is generally only suitable for tunnels with short distances, and the suction type ventilation and dust removal scheme causes great pollution to the environment. The defects of two ventilation and dust removal modes of a press-in type and an suction type are combined, and a novel ventilation device needs to be designed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the not enough of prior art, provide an economical and practical, simple easy operation, dust removal dust fall effectual outer dust device in hole.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a dust fall device outside a tunnel comprises an air supply pipe, an exhaust pipe, a box body, a control cabinet and a spray pump; the air supply pipe and the exhaust pipe are both arranged at the top of the tunnel; the box body is provided with a plurality of filter windows, the top in the box body is also provided with a dust concentration sensor, and the box body is also provided with a spraying header; a plurality of atomizing nozzles are arranged on the spraying collecting pipe, and an air inlet pipe is arranged above the spraying collecting pipe; one end of the air inlet pipe extends out of the box body, and a plurality of air outlet holes are formed in the air inlet pipe body in the box body; one end of the air inlet pipe, which extends out of the box body, is connected with the exhaust pipe through a pipeline, and an exhaust fan is arranged on the pipeline between the exhaust pipe and the air inlet pipe; an air supply fan is arranged on the air supply pipe; the spray pump is connected with the spray header through a pipeline; the switch board sets up in one side of box, spray pump, dust concentration sensor, air supply fan, exhaust fan all with switch board electric connection.
Furthermore, the atomizing nozzle is a spiral solid conical nozzle, and the spraying direction of the atomizing nozzle is vertical to the upper direction.
Furthermore, the filter windows are arranged on two sides of the box body, and the height of the top of each filter window is not higher than the height of the lowest end of the spray header.
Furthermore, the filter window is a two-layer filter screen with the mesh number of 10.
Furthermore, an inclined bottom plate is arranged at the lower end of the box body, and a sewage draining groove is formed in one side of the bottom plate; one side of the box body is provided with a sedimentation tank, and one end of the sewage discharge groove extends into the sedimentation tank.
Furthermore, a flushing pipe is arranged on one side of the bottom plate, which is far away from the sewage discharge groove, and a cleaning spray head is arranged on the flushing pipe; a scouring pump is arranged on one side of the box body, the water inlet end of the scouring pump extends into the sedimentation tank, and the water outlet end of the scouring pump is connected with the scouring pipe; the scouring pump is electrically connected with the control cabinet.
Furthermore, a lantern ring is arranged on the side face of the box body, and two ends of the flushing pipe are arranged in the lantern ring; an electric cylinder is arranged on one side of the box body, and a piston rod of the electric cylinder is fixedly connected with the flushing pipe; the electric cylinder is electrically connected with the control cabinet.
Compared with the prior art, the utility model discloses have better dust removal dust fall effect, can reduce the pollution of tunnel construction to peripheral resident and environment. Furthermore, the utility model discloses the cost is low, and the operation maintenance cost is low, and economical and practical still can realize unmanned automatic control, simple easy operation through the switch board.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a front view of the dust settling chamber of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a control block diagram of the present invention.
The reference numerals are explained below:
in the figure: 1. a sedimentation tank; 2. a spray pump; 3. a scouring pump; 4. flushing the pipe; 5. a collar; 6. filtering the window; 7. a spray header; 8. a box body; 9. an air inlet pipe; 10. an atomizing nozzle; 11. a dust concentration sensor; 12. an air draft fan; 13. an exhaust pipe; 14. an air supply pipe; 15. an air supply fan; 16. a tunnel; 17. An electric cylinder; 18. cleaning the spray head; 19. a base plate; 20. a sewage draining groove; 21. a control cabinet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the utility model provides an outside-tunnel dust-settling device, which comprises an air supply pipe 14, an exhaust pipe 13, a box body 8, a control cabinet 21 and a spray pump 2; the air supply pipe 14 and the exhaust pipe 13 are both arranged at the top of the tunnel; a plurality of filter windows 6 are arranged on the box body 8, a dust concentration sensor 11 is also arranged at the top in the box body 8, and a spray header 7 is also arranged in the box body 8; a plurality of atomizing nozzles 10 are arranged on the spraying header 7, and an air inlet pipe 9 is arranged above the spraying header 7; one end of the air inlet pipe 9 extends out of the box body 8, and a plurality of air outlet holes are formed in the pipe body of the air inlet pipe 9 positioned in the box body 8; one end of the air inlet pipe 9 extending out of the box body 8 is connected with an exhaust pipe 13 through a pipeline, and an exhaust fan 12 is arranged on the pipeline between the exhaust pipe 13 and the air inlet pipe 9; an air supply fan 15 is arranged on the air supply pipe 14; the spray pump 2 is connected with the spray header 7 through a pipeline, and the spray pump 2 is connected with a water pipe on a construction site; the switch board 21 sets up in one side of box 8, spray pump 2, dust concentration sensor 11, air supply fan 15, exhaust fan 12 all with switch board 21 electric connection.
In the utility model discloses, atomizing nozzle 10 can adopt the solid circular cone nozzle of JZ-ZG1/4P40120S316SS spiral, has fine and close even atomization effect. In order to make the utility model have a better dust fall effect, the spraying direction of the atomizing nozzle 10 is vertical upward. The spray dust settling efficiency is related to the particle size of fog drops, the density of the fog drops in a spray body, the relative movement speed of the fog drops and dust particles, the particle size and the property of dust and the like. The fog drops with too large particle size can be quickly settled, and the fog drops with too small particle size can be easily evaporated, so that the fog drops and the fog drops are not beneficial to dust capture. The dust-catching effect is better when the particle size of the fog drops is about 150 times of the diameter of the dust particles. The larger the relative motion speed between dust particles and fog drops is, the more violent the inertial collision is, the higher the collision efficiency is, and the better the dust settling effect is. The utility model discloses when implementing, to the dust that the particle diameter is greater than 1 mu m with inertia capture as leading, to submicron dirt particle (being less than 0.5 mu m) with the diffusion capture as leading, to the dirt particle of 0.5 ~ 1 mu m, these two kinds of dirt mechanisms of catching all play a role.
The utility model discloses in, filter 6 settings in the both sides of box 8, directly waft to filter 6 in order to prevent from the water smoke that atomizing nozzle sprays out, guarantee the dust fall effect, filter 6 tops of window highly not higher than spray header 7 height bottom. In order to enable the air in the box body 8 to be smoothly discharged to the outer side of the box body 8 and simultaneously prevent the water mist adsorbing dust particles from being discharged from the filter window 6, the filter window 6 is a filter screen with 10 meshes in two layers.
In the utility model, the lower end of the box body 8 is provided with an inclined bottom plate 19, and one side of the bottom plate 19 is provided with a sewage draining groove 20; one side of the box body 8 is provided with a sedimentation tank 1, and one end of the sewage discharge groove 20 extends into the sedimentation tank 1. The water smoke that has adsorbed the dirt particle falls on the bottom plate 19 of box 8 bottom, flows into sedimentation tank 1 through blowdown groove 20 after the gathering, and the sedimentation tank 1 that sets up can retrieve sewage, and sewage deposits naturally in sedimentation tank 1 simultaneously, and the dirt particle in the sewage sinks to the bottom of sedimentation tank 1. A flushing pipe 4 is arranged on one side of the bottom plate, which is far away from the sewage discharge groove 20, and a cleaning spray head 18 is arranged on the flushing pipe 4; and a scouring pump 3 is arranged on one side of the box body 8, the water inlet end of the scouring pump 3 extends into the sedimentation tank 1, and the water outlet end of the scouring pump 3 is connected with a scouring pipe 4. The washing pump 3 pumps the clean water at the upper layer in the sedimentation tank 1 and pumps the clean water to the cleaning spray head 18, and then the cleaning spray head 18 sprays the high-pressure water to the bottom plate 19, thereby completing the washing of the bottom plate 19.
The side surface of the middle box body 8 of the utility model is provided with a lantern ring 5, two ends of the flushing pipe 4 are arranged in the lantern ring 5, wherein the lantern ring 5 can be formed by cutting a steel pipe with the diameter larger than that of the flushing pipe 4; an electric cylinder 17 is arranged on one side of the box body 8, and a piston rod of the electric cylinder 17 is fixedly connected with the flushing pipe 4. The control cabinet 21 controls the electric cylinder 17 to stretch, the electric cylinder 17 drives the flushing pipe 4 to reciprocate along the radial direction of the flushing pipe 4, and the cleaning spray head 18 performs flushing cleaning on all areas on the bottom plate 19; in this way, the cleaning effect of the base plate 19 can be further increased, while the number of cleaning nozzles 18 mounted on the flushing pipe 4 can be reduced. After the equipment is operated for a period of time, dust can be deposited on the bottom plate 19, so that the flushing pump 3 and the electric cylinder 17 can be started periodically to clean the bottom plate 19 and prevent the dust from being deposited in the box body 8. Because the water in the sedimentation tank 1 is pumped by the scouring pump 3, the water is recycled, and the water is saved.
In the implementation process of the utility model, a PLC controller is arranged in the control cabinet 21, and the PLC controller in the control cabinet 21 controls the start and stop of the air supply fan 15, the air draft fan 12, the scouring pump 3, the spray pump 2 and the electric cylinder 17; when the tunnel 16 is excavated, the atomizing nozzles 10 in the box body 8 intermittently spray and reduce dust, and when the excavation of the tunnel face 16 is finished or the supporting is finished, the spraying frequency is properly reduced. The dust concentration sensor 11 detects the concentration of dust in the box body 8 and transmits a detected dust concentration signal to the control cabinet 21, and when the dust in the box body 8 is detected to be more, the control cabinet 21 controls the spray pump 2 to enable the atomization nozzle 10 in the box body 8 to increase the spraying frequency properly; when the dust in the box body 8 is detected to be less, the control cabinet 21 controls the spray pump 2 to enable the atomizing nozzle 10 in the dust settling chamber to properly reduce the spraying frequency; when no dust is detected in the box body 8, the control cabinet 21 controls the spray pump 2 to be closed.
The utility model discloses the cost is low, and the operation maintenance cost is low, and economical and practical has fine dust removal dust fall effect, can reduce the pollution of 16 construction of tunnel to peripheral resident and environment. In addition, unmanned automatic control can be realized through the control cabinet 21, and the operation is simple and easy.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A dust falling device outside a tunnel is characterized by comprising an air supply pipe, an exhaust pipe, a box body, a control cabinet and a spray pump; the air supply pipe and the exhaust pipe are both arranged at the top of the tunnel; the box body is provided with a plurality of filter windows, the top in the box body is also provided with a dust concentration sensor, and the box body is also provided with a spraying header; a plurality of atomizing nozzles are arranged on the spraying collecting pipe, and an air inlet pipe is arranged above the spraying collecting pipe; one end of the air inlet pipe extends out of the box body, and a plurality of air outlet holes are formed in the air inlet pipe body in the box body; one end of the air inlet pipe, which extends out of the box body, is connected with the exhaust pipe through a pipeline, and an exhaust fan is arranged on the pipeline between the exhaust pipe and the air inlet pipe; an air supply fan is arranged on the air supply pipe; the spray pump is connected with the spray header through a pipeline; the switch board sets up in one side of box, spray pump, dust concentration sensor, air supply fan, exhaust fan all with switch board electric connection.
2. The dust settling device outside the tunnel according to claim 1, characterized in that: the atomizing nozzle is a spiral solid conical nozzle, and the spraying direction of the atomizing nozzle is vertical upward.
3. The dust settling device outside the tunnel according to claim 1, characterized in that: the filter windows are arranged on two sides of the box body, and the height of the top of each filter window is not higher than the height of the lowest end of the spray header.
4. The dust settling device outside the tunnel according to claim 3, characterized in that: the filter window is a two-layer filter screen with 10 meshes.
5. An out-of-hole dust settling device as claimed in any one of claims 1 to 4, wherein: an inclined bottom plate is arranged at the lower end of the box body, and a sewage draining groove is formed in one side of the bottom plate; one side of the box body is provided with a sedimentation tank, and one end of the sewage discharge groove extends into the sedimentation tank.
6. The dust settling device outside the tunnel according to claim 5, characterized in that: a flushing pipe is arranged on one side of the bottom plate, which is far away from the sewage discharge groove, and a cleaning spray head is arranged on the flushing pipe; and a scouring pump is arranged on one side of the box body, the water inlet end of the scouring pump extends into the sedimentation tank, and the water outlet end of the scouring pump is connected with the scouring pipe.
7. The dust settling device outside the tunnel according to claim 6, characterized in that: a lantern ring is arranged on the side face of the box body, and two ends of the flushing pipe are arranged in the lantern ring; and an electric cylinder is arranged on one side of the box body, and a piston rod of the electric cylinder is fixedly connected with the flushing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020733472.9U CN212881601U (en) | 2020-05-07 | 2020-05-07 | Dust device outside hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020733472.9U CN212881601U (en) | 2020-05-07 | 2020-05-07 | Dust device outside hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212881601U true CN212881601U (en) | 2021-04-06 |
Family
ID=75262954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020733472.9U Active CN212881601U (en) | 2020-05-07 | 2020-05-07 | Dust device outside hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212881601U (en) |
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2020
- 2020-05-07 CN CN202020733472.9U patent/CN212881601U/en active Active
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