Dust removing equipment for highway tunnel construction

Abstract

The utility model provides dust removal equipment for highway tunnel construction, which relates to the technical field of construction dust removal and comprises a bottom frame, a dust treatment mechanism is arranged at the top end of the bottom frame, a spraying pipe and a drainage plate are arranged in the dust treatment mechanism, and a pumping mechanism is arranged at one end of the dust treatment mechanism. Dust-containing gas and water mist sprayed by the spraying pipe can be mutually mixed and attached in the flowing process and jointly impact on the drainage plate, after deep mixing of dust and liquid is completed, the drainage plate is used for guiding flow of dust particles and the liquid, the dust liquid flows into the bottom of the dust removal box to be precipitated, then the dust liquid is discharged through the blow-down valve pipe, and dust treatment is completed. The whole process does not need to be filtered by a filter screen, so that the problem that the dust removal effect is influenced by frequent replacement due to excessive dust accumulation of the filter cartridge is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction dust removal, in particular to dust removal equipment for highway tunnel construction. Background Art

[0002] During the construction of highway tunnels, a large amount of dust will be generated. Due to the limited space in the tunnel, the dust will splash and spread in the tunnel with the gas, which can easily affect the health of construction workers. Therefore, dust removal is an indispensable measure in the tunnel construction process.

[0003] In the existing technology, dust removal in tunnels is generally carried out through ventilation and dust removal ducts, which is not suitable for dust removal in local construction in tunnels. Dust removal in local construction in tunnels is generally completed using small movable dust removal equipment. This equipment consists of a centrifugal fan and a filter cartridge. The centrifugal fan draws dust into the filter screen for filtration to complete dust removal. However, due to the large amount of dust in the tunnel, this removal method requires regular replacement of the filter cartridge. Otherwise, the dust removal effect of the entire equipment will gradually decrease as dust accumulates in the filter cartridge. However, the filter cartridge replacement operation time is long, which can easily affect the construction progress and reduce the dust removal efficiency. For this reason, we propose a dust removal equipment for highway tunnel construction. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a dust removing device for highway tunnel construction.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a dust removal equipment for highway tunnel construction, comprising a base frame, a dust processing mechanism is provided on the top of the base frame, a spray pipe and a guide plate are provided inside the dust processing mechanism, and a pumping mechanism is provided at one end of the dust processing mechanism. When working, the pumping mechanism sends the dust-containing gas into the dust processing mechanism, the water mist sprayed from the spray pipe adheres to the guide plate and flows downward along the guide plate, and the dust-containing gas hits the surface of the guide plate to achieve dust reduction.

[0006] Preferably, the dust handling mechanism includes a dust removal box fixedly mounted on the top of the base frame, a guide plate and a drainage plate are fixedly connected to the inside of the air inlet of the dust removal box, the drainage plate is arranged in a C shape as a whole, the guide plate is arranged in an inclined shape, the spray pipe is located on the top of the windward surface of the drainage plate, and a ventilation groove that is interconnected with the inside of the dust removal box is formed between the drainage plate and the guide plate, an exhaust fan is fixedly connected to the corner of one end of the dust removal box, and a baffle is fixedly connected to the inside of the dust removal box, and the baffle is located between the air inlet surface of the exhaust fan and the drainage plate.

[0007] Preferably, a spray frame is fixedly installed inside the dust removal box, and the spray frame is located directly below the baffle plate. The outer wall of the dust removal box is fixedly connected to a No. 1 water supply pipe and a No. 2 water supply pipe, and the branch pipe of the No. 2 water supply pipe is respectively connected to the spray frame and one end of the liquid inlet of the spray pipe.

[0008] Preferably, a flushing pipe is fixedly connected to one end of the dust removal box away from the exhaust fan, one end of the liquid inlet of the flushing pipe is connected to the No. 1 water supply pipe, the bottom end of the dust removal box is arranged in an inclined shape, and a sewage valve pipe is fixedly connected to one end of the dust removal box.

[0009] Preferably, the air inlet of the dust collector is fixedly installed with a ventilation hood, the pumping mechanism includes a centrifugal fan interconnected with the air inlet of the ventilation hood, the bottom end of the centrifugal fan is fixedly connected with a connecting seat, the connecting seat is fixedly installed on the top of the base frame, and the air inlet of the centrifugal fan is fixedly installed with a drainage hood.

[0010] Preferably, a water tank is fixedly connected to the top of the base frame, a liquid pump is fixedly connected to the outer wall of the dust removal box, the discharge port of the liquid pump is respectively connected to one end of the No. 1 water supply pipe and the No. 2 water supply pipe, and the water tank drain pipe is connected to the water inlet of the liquid pump through a hose.

[0011] Preferably, one end of the base frame is fixedly connected to a push-pull rod via a rotating rod, and universal wheels are fixedly installed at the four corners of the bottom end of the base frame.

[0012] Preferably, the guide plate and the drainage plate are both made of stainless steel, and a drainage groove is provided on the surface of the drainage plate.

[0013] Beneficial effects:

[0014] 1. The utility model sets a guide plate in conjunction with the spray pipe, which can make the dust-laden gas mix and adhere with the water mist sprayed by the spray pipe during the flow process, and collide with the guide plate together. After the dust and liquid are deeply mixed, the guide plate is used to guide the dust particles and the liquid, so that the dust liquid flows into the bottom end of the dust removal box for sedimentation and is then discharged from the drain valve pipe to complete the dust treatment. The whole process does not require filtration through a filter, thereby avoiding the problem of frequent replacement of the filter cartridge due to excessive dust accumulation, which affects the dust removal effect.

[0015] 2. The utility model can spray water mist vertically toward the bottom of the dust collector box through the spray frame fixedly installed inside the dust collector box, and further remove dust by adhering water mist to the gas entering the dust collector box, thereby improving the dust removal effect. At the same time, the baffle plate fixedly connected inside the dust collector box can block the water mist, increase the retention time of the water mist inside the dust collector box, and thus enhance the mixing effect of water mist and dust, thereby improving the dust removal intensity of the entire dust processing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure from the first perspective of the present invention;

[0017] Figure 2 This is a schematic diagram of the third perspective structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust handling mechanism;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the dust handling mechanism.

[0020] Legend:

[0021] 1. Base frame; 2. Dust handling mechanism; 3. Pumping mechanism; 4. Water storage tank; 5. Dust removal box; 6. Liquid pump; 7. Water supply pipe No. 1; 8. Water supply pipe No. 2; 9. Exhaust fan; 10. Push-pull rod; 11. Drain valve pipe; 12. Vent hood; 13. Guide plate; 14. Drain plate; 15. Blocking plate; 16. Spray frame; 17. Spray pipe; 18. Flushing pipe; 19. Connecting seat; 20. Centrifugal fan; 21. Drain hood; 22. Universal wheel. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0023] The specific embodiments of the present utility model are described below with reference to the accompanying drawings.

[0024] Reference Figures 1-4 A dust removal device for highway tunnel construction includes a base frame 1, a dust processing mechanism 2 is provided on the top of the base frame 1, a spray pipe 17 and a guide plate 14 are provided inside the dust processing mechanism 2, and a pumping mechanism 3 is provided at one end of the dust processing mechanism 2. When working, the pumping mechanism 3 sends the dust-containing gas into the dust processing mechanism 2, and the water mist sprayed by the spray pipe 17 adheres to the guide plate 14 and flows downward along the guide plate 14. The dust-containing gas hits the surface of the guide plate 14 to achieve dust reduction.

[0025] like Figures 1-4As shown, the dust handling mechanism 2 includes a dust box 5 fixedly mounted on the top of the chassis 1, a guide plate 13 and a guide plate 14 are fixedly connected to the air inlet of the dust box 5, the guide plate 14 is arranged in a C shape as a whole, the guide plate 13 is arranged in an inclined shape, the spray pipe 17 is located at the top of the windward surface of the guide plate 14, and a ventilation groove is formed between the guide plate 14 and the guide plate 13 to communicate with the inside of the dust box 5. An exhaust fan 9 is fixedly connected to the corner of one end of the dust box 5, and the dust-laden gas enters through the air inlet of the dust box 5. After that, it will hit the windward surface of the guide plate 14, and the water mist sprayed by the spray pipe 17 will also adhere to the windward surface of the guide plate 14. The water mist and the dust-laden gas will come into contact with each other, and the dust in the gas will be wrapped and attached by the water mist. As the liquid on the surface of the guide plate 14 flows along the guide plate 14, it enters the dust removal box 5 through the ventilation groove formed between the guide plate 14 and the guide plate 13. At the same time, the dust-removed gas will also enter the dust removal box 5, and be guided and discharged through the exhaust fan 9 fixedly connected at the corner of one end of the dust removal box 5.

[0026] like Figure 2-Figure 4 As shown, a baffle plate 15 is fixedly connected to the inside of the dust removal box 5, and the baffle plate 15 is located between the air inlet surface of the exhaust fan 9 and the guide plate 14. A spray frame 16 is fixedly installed inside the dust removal box 5, and the spray frame 16 is located just below the baffle plate 15. The outer wall of the dust removal box 5 is fixedly connected to the No. 1 water supply pipe 7 and the No. 2 water supply pipe 8. The branch pipes of the No. 2 water supply pipe 8 are respectively connected to the spray frame 16 and one end of the liquid inlet of the spray pipe 17. The spray frame 16 fixedly installed inside the dust removal box 5 sprays water mist vertically toward the bottom end of the dust removal box 5 to clean the air entering the dust removal box 5. The body is subjected to water mist dust removal again to improve the dust removal effect. The baffle plate 15 is fixedly connected to the inside of the dust removal box 5, and the outer wall of the baffle plate 15 has a number of small holes and grooves, which can block the water mist, so that the water mist adheres to the surface of the baffle plate 15, and the water mist condenses and drips, thereby increasing the retention time of the water mist inside the dust removal box 5, thereby enhancing the mixing effect of the water mist and the dust, and thereby improving the dust removal strength of the entire dust processing mechanism 2. The spray frame 16 involved in the utility model is composed of a hollow pipe rack with multiple nozzles installed. It is an existing device and will not be described in detail here.

[0027] like Figure 2-Figure 4 As shown, a flushing pipe 18 is fixedly connected to one end of the dust box 5 away from the exhaust fan 9, and one end of the liquid inlet of the flushing pipe 18 is interconnected with the No. 1 water supply pipe 7. The bottom end of the dust box 5 is arranged in an inclined shape, and a sewage valve pipe 11 is fixedly connected to one end of the dust box 5. The bottom end of the interior is arranged in an inclined shape, which is convenient for draining the liquid mixed with dust particles and discharging it through the sewage valve pipe 11. The flushing pipe 18 is fixedly connected to one end of the dust box 5 away from the exhaust fan 9, and the bottom end of the dust box 5 can be flushed when cleaning the inside of the dust box 5, thereby improving the cleaning efficiency of the inside of the dust box 5.

[0028] like Figure 1-Figure 2As shown, a ventilation hood 12 is fixedly installed at the air inlet of the dust removal box 5, and the pumping mechanism 3 includes a centrifugal fan 20 interconnected with the air inlet of the ventilation hood 12. The bottom end of the centrifugal fan 20 is fixedly connected to a connecting seat 19, and the connecting seat 19 is fixedly installed on the top of the base frame 1. The air inlet of the centrifugal fan 20 is fixedly installed with a drainage hood 21. Through the ventilation hood 12 and the centrifugal fan 20, the dust-containing gas generated by local construction in the tunnel can be pumped into the interior of the dust removal box 5.

[0029] like Figure 1-Figure 3 As shown, a water tank 4 is fixedly connected to the top of the base frame 1, a liquid pump 6 is fixedly connected to the outer wall of the dust removal box 5, the discharge port of the liquid pump 6 is communicated with one end of the No. 1 water supply pipe 7 and the No. 2 water supply pipe 8 respectively, the drain pipe of the water tank 4 and the water inlet of the liquid pump 6 are connected by a hose, and the liquid pump 6 is fixedly connected to the outer wall of the dust removal box 5, so that the liquid stored in the water tank 4 can be pressurized and transported to the inside of the No. 1 water supply pipe 7 and the No. 2 water supply pipe 8 to meet the liquid supply demand for the spray frame 16, the spray pipe 17 and the flushing pipe 18 inside the dust removal box 5.

[0030] like Figure 1-Figure 2 As shown, one end of the base frame 1 is fixedly connected to a push-pull rod 10 through a rotating rod, and universal wheels 22 are fixedly installed at the four corners of the bottom end of the base frame 1. The universal wheels 22 fixedly installed at the four corners of the bottom end of the base frame 1 cooperate with the push-pull rod 10 fixedly connected to one end of the base frame 1 through the rotating rod, making it convenient to pull the entire device for mobile use.

[0031] like Figure 4 As shown, the guide plate 13 and the guide plate 14 are both made of stainless steel, and a guide groove is provided on the surface of the guide plate 14. The guide groove of the guide plate 14 can guide water mist and dust, and at the same time increase the attachment area of water mist and dust.

[0032] The working principle of the utility model is as follows: according to the requirements of tunnel construction, a push-pull rod 10 fixedly connected to one end of the chassis 1 through a rotating rod is used to pull the entire device to the position where dust removal is required. First, the liquid pump 6 is turned on to supply water to the No. 2 water supply pipe 8. The water flows through the No. 2 water supply pipe 8 and is sprayed out by the spray frame 16 and the spray pipe 17. Then, the centrifugal fan 20 and the exhaust fan 9 are turned on. The centrifugal fan 20 draws the dust-laden gas in the tunnel into the air inlet of the dust removal box 5. The flowing dust-laden gas will hit the windward surface of the guide plate 14, and the spray pipe 1 The sprayed water mist will also adhere to the windward surface of the guide plate 14. The water mist will come into contact with the dust-laden gas, and the dust in the gas will be wrapped and attached to the water mist. Along with the liquid on the surface of the guide plate 14, the dust will flow down along the guide plate 14 and enter the bottom end of the dust removal box 5 through the ventilation groove formed between the guide plate 14 and the guide plate 13. The dust will be precipitated in the accumulated liquid inside the dust removal box 5 along with the liquid. The gas that has been dusted will be subjected to secondary dust reduction by the water mist sprayed by the spray frame 16 inside the dust removal box 5, and then discharged by the exhaust fan 9 to complete the dust removal operation.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for highway tunnel construction, characterized by: It comprises a base frame (1), a dust handling mechanism (2) is provided at the top of the base frame (1), a spray pipe (17) and a guide plate (14) are provided inside the dust handling mechanism (2), and a pumping mechanism (3) is provided at one end of the dust handling mechanism (2); During operation, the pumping mechanism (3) delivers the dust-laden gas into the dust treatment mechanism (2), the water mist sprayed from the spray pipe (17) adheres to the guide plate (14) and flows downward along the guide plate (14), and the dust-laden gas hits the surface of the guide plate (14) to achieve dust reduction; The dust handling mechanism (2) includes a dust removal box (5) fixedly mounted on the top of the base frame (1), a guide plate (13) and a guide plate (14) are fixedly connected to the air inlet of the dust removal box (5), the guide plate (14) is arranged in a C-shape as a whole, the guide plate (13) is arranged in an inclined shape, the spray pipe (17) is located at the top of the windward surface of the guide plate (14), and a ventilation groove is formed between the guide plate (14) and the guide plate (13) and is interconnected with the inside of the dust removal box (5), an exhaust fan (9) is fixedly connected to the corner of one end of the dust removal box (5), a baffle plate (15) is fixedly connected to the inside of the dust removal box (5), and the baffle plate (15) is located between the air inlet surface of the exhaust fan (9) and the guide plate (14); A spray frame (16) is fixedly installed inside the dust removal box (5), and the spray frame (16) is located directly below the baffle plate (15). The outer wall of the dust removal box (5) is fixedly connected to a No. 1 water supply pipe (7) and a No. 2 water supply pipe (8), and the branch pipe of the No. 2 water supply pipe (8) is respectively connected to the spray frame (16) and one end of the liquid inlet of the spray pipe (17).

2. The dust removal equipment for highway tunnel construction according to claim 1, characterized in that: A flushing pipe (18) is fixedly connected to one end of the dust removal box (5) away from the exhaust fan (9), and one end of the liquid inlet of the flushing pipe (18) is communicated with the No. 1 water supply pipe (7). The bottom end of the dust removal box (5) is arranged in an inclined shape, and a sewage valve pipe (11) is fixedly connected to one end of the dust removal box (5).

3. The dust removal equipment for highway tunnel construction according to claim 1, characterized in that: The air inlet of the dust removal box (5) is fixedly mounted with a ventilation cover (12), the pumping mechanism (3) comprises a centrifugal fan (20) interconnected with the air inlet of the ventilation cover (12), the bottom end of the centrifugal fan (20) is fixedly connected with a connecting seat (19), the connecting seat (19) is fixedly mounted on the top of the base frame (1), and the air inlet of the centrifugal fan (20) is fixedly mounted with a drainage cover (21).

4. The dust removal equipment for highway tunnel construction according to claim 2, characterized in that: The top of the base frame (1) is fixedly connected to a water storage tank (4), the outer wall of the dust removal box (5) is fixedly connected to a liquid pump (6), the discharge port of the liquid pump (6) is respectively connected to one end of the No. 1 water supply pipe (7) and the No. 2 water supply pipe (8), and the drainage pipe of the water storage tank (4) and the water inlet of the liquid pump (6) are connected via a hose.

5. The dust removal equipment for highway tunnel construction according to claim 1, characterized in that: One end of the base frame (1) is fixedly connected to a push-pull rod (10) via a rotating rod, and universal wheels (22) are fixedly mounted on the four corners of the bottom end of the base frame (1).

6. The dust removal equipment for highway tunnel construction according to claim 1, characterized in that: The guide plate (13) and the guide plate (14) are both made of stainless steel, and a guide groove is provided on the surface of the guide plate (14).

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