Tunnel smoke emission device

By designing a tunnel dust emission device that includes a baffle plate, spray nozzles, and an activated carbon filter, the problem of dust and smoke affecting visibility during tunnel construction was solved, achieving efficient dust suppression and reducing construction costs.

CN223661910UActive Publication Date: 2025-12-12CHINA FIRST HIGHWAY ENGINEERING CO LTD
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Patent Information

Application Number
CN202520406974.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-12-12
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

During tunnel construction, the smoke and dust generated by machinery and equipment affect visibility and air quality. Existing exhaust ventilation systems suffer from high frictional resistance due to long ducts, which reduces the efficiency of air intake and dust removal.

Method used

Design a tunnel dust emission device that includes a cylinder, guide plate, impeller, spray nozzles, water tank and activated carbon filter. Through the integrated design of spray dust suppression and dust collection, it utilizes the physical adsorption of water droplets and gravity settling, combined with the activated carbon filter to filter dust.

Benefits of technology

It improved dust suppression efficiency in the tunnel, reduced duct resistance, lowered construction costs, and increased the work efficiency of construction personnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tunnel smoke discharging device which comprises a cylinder body, a cross-shaped flow guide rod is fixedly connected in the cylinder body, a motor is fixedly connected to the outer wall of the cross-shaped flow guide rod, an impeller is fixedly arranged on the outer wall of an output shaft of the motor in a sleeved mode, two first flow guide plates are fixedly connected in the cylinder body, and the two first flow guide plates are fixedly connected in the cylinder body. Two second flow guide plates are fixedly connected to the interior of the barrel, a through hole is formed in the outer wall of one second flow guide plate, a water outlet pipe is fixedly connected to the inner wall of the through hole, and a plurality of spraying nozzles are evenly and fixedly communicated to the outer wall of the water outlet pipe. By arranging the first flow guide plate, the second flow guide plate, the water outlet pipe, the spraying nozzle, the water tank, the pump body, the partition plate, the plate type activated carbon filter and the water inlet hole, the whole device belongs to movable dust falling, the length of the air pipe is short, meanwhile, the spraying dust falling and dust collection integrated design is adopted, use is convenient, and meanwhile the dust falling efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field especially relates to a tunnel smoke emission device. BACKGROUND

[0002] The mechanical equipment (such as excavator, loader, generator etc.) used in the process of tunnel construction usually takes fuel as power source, and exhaust gas and smoke will be produced in its running process. Moreover, blasting technique is usually adopted in tunnel construction to excavate, and a large amount of dust and smoke will be produced in the process of blasting. These dusts are mainly composed of rock debris and smoke produced by explosion, which will seriously affect the visibility and air quality in the tunnel. Moreover, the accumulation of smoke and harmful gas will affect the work efficiency of construction personnel and increase the construction difficulty. For example, construction personnel need to wear protective equipment such as dust mask or gauze mask, which will reduce the work efficiency and increase the construction cost. At the same time, since the air outlet is located outside the tunnel, the air duct is long, when the extracted air flows in the air duct, friction is generated between the air and the wall of the duct, forming resistance along the way, the longer the air duct, the greater the friction area, the more obvious the resistance, which affects the speed of air suction and dust removal. Therefore, the tunnel smoke emission device is proposed to solve the above problems. SUMMARY

[0003] The utility model discloses a tunnel smoke emission device to solve the shortcomings in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A tunnel smoke emission device, comprising a cylinder, a cross flow guide rod is fixedly connected inside the cylinder, a motor is fixedly connected to the outer wall of the cross flow guide rod, an impeller is fixedly sleeved to the outer wall of the motor output shaft, two first flow guide plates are fixedly connected inside the cylinder, two second flow guide plates are fixedly connected inside the cylinder, a through hole is formed in the outer wall of one of the second flow guide plates, a water outlet pipe is fixedly connected to the inner wall of the through hole, a plurality of spray nozzles are uniformly fixed to the outer wall of the water outlet pipe, two supports are fixedly connected to the outer wall of the cylinder, a water tank is fixedly connected to the outer wall of the cylinder, the same base is fixedly connected to the bottom of the two supports and the water tank, a pump body is fixedly connected to the top of the base, and a filtering mechanism is arranged inside the water tank.

[0006] Preferably, the filtering mechanism comprises four partitions, the outer walls of the four partitions are fixedly connected to the inner wall of the water tank, a plate-type activated carbon filter is arranged between the four partitions, and a water inlet hole is formed between the water tank and the cylinder. The filtering mechanism is arranged to filter sewage, achieving the purpose of recycling.

[0007] Preferably, a debris interception net is fixedly connected inside the cylinder. The debris interception net can intercept stones and larger objects to prevent damage to the impeller.

[0008] Preferably, the outer wall of the motor is fixedly connected with multiple connecting rods, one end of each connecting rod being fixedly connected to the inner wall of the cylinder. The stability of the motor during operation is increased by setting multiple connecting rods.

[0009] Preferably, the input end of the pump body is fixedly connected to the outer wall of the water tank, and the output end of the pump body is fixedly connected to one end of the outlet pipe. The pump body is connected to one end of the outlet pipe through an existing connector.

[0010] Preferably, the outer wall of the water tank is hinged with a sealing door, and an existing door lock is installed between the sealing door and the water tank.

[0011] Preferably, four shock-absorbing wheels are fixedly connected to the bottom of the base to reduce vibration during equipment operation.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution, consisting of a first guide plate, a second guide plate, a water outlet pipe, spray nozzles, a water tank, a pump body, baffles, a plate-type activated carbon filter, and a water inlet, is a mobile dust suppression system with a short duct length. It also adopts an integrated design of spray dust suppression and dust collection, which improves dust suppression efficiency while being convenient to use. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a tunnel dust emission device proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of a tunnel dust emission device proposed in this utility model;

[0017] Figure 3 This utility model proposes a tunnel smoke and dust emission device. Figure 2 A magnified structural diagram of part A in the diagram;

[0018] Figure 4 This is a schematic diagram of the motor, connecting rod, and impeller structure of a tunnel dust emission device proposed in this utility model.

[0019] In the diagram: 1. Cylinder; 2. Debris interception net; 3. Cross guide rod; 4. Motor; 5. Connecting rod; 6. Impeller; 7. First guide plate; 8. Second guide plate; 9. Water outlet pipe; 10. Spray nozzle; 11. Support; 12. Water tank; 13. Base; 14. Pump body; 15. Sealing door; 16. Partition plate; 17. Plate activated carbon filter; 18. Water inlet; 19. Shock-absorbing wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, a tunnel smoke and dust emission device is disclosed, comprising a cylinder 1, with a debris interception net 2 fixedly connected inside the cylinder 1. The debris interception net 2 does not affect the entry of air and smoke and dust, and intercepts debris. A cross guide rod 3 is fixedly connected inside the cylinder 1. A motor 4 is fixedly connected to the outer wall of the cross guide rod 3. Multiple connecting rods 5 are fixedly connected to the outer wall of the motor 4. One end of each connecting rod 5 is fixedly connected to the inner wall of the cylinder 1. An impeller 6 is fixedly sleeved on the outer wall of the output shaft of the motor 4. When the motor 4 operates, the impeller 6 rotates, drawing in air containing smoke and dust from the debris interception net 2.

[0022] Two first guide plates 7 and two second guide plates 8 are fixedly connected inside the cylinder 1. The two first guide plates 7 and the two second guide plates 8 are arranged vertically to increase the airflow path. For the resistance generated by the long air duct, the resistance brought by the first guide plates 7 and the second guide plates 8 has a limited range of effect and is mainly concentrated in the local area of ​​the air duct. In contrast, the total resistance of the long air duct is usually much greater than the local resistance brought by the first guide plates 7 and the second guide plates 8 due to the cumulative effect of friction resistance. One of the second guide plates 8 has a through hole on its outer wall, and a water outlet pipe 9 is fixedly connected to the inner wall of the through hole. Multiple spray nozzles 10 are evenly fixed and interconnected on the outer wall of the water outlet pipe 9. The two first guide plates 7 play a role in blocking the flowing sewage.

[0023] Two supports 11 are fixedly connected to the outer wall of the cylinder 1. A water tank 12 is fixedly connected to the outer wall of the cylinder 1. The water tank 12 and the bottom of the two supports 11 are fixedly connected to the same base 13. A pump body 14 is fixedly connected to the top of the base 13. The input end of the pump body 14 is fixedly connected to the outer wall of the water tank 12. The output end of the pump body 14 is fixedly connected to one end of the water outlet pipe 9.

[0024] The outer wall of the water tank 12 is hinged with a sealing door 15, and the bottom of the base 13 is fixedly connected with four shock-absorbing wheels 19. The principle of the shock-absorbing wheels 19 mainly relies on the coordinated work of springs and dampers to consume vibration energy.

[0025] The water tank 12 is equipped with a filtration mechanism, which includes four partitions 16. The outer walls of the four partitions 16 are fixedly connected to the inner wall of the water tank 12. A plate-type activated carbon filter 17 is placed between the four partitions 16. A water inlet hole 18 is provided between the water tank 12 and the cylinder 1.

[0026] Working principle: When used for smoke and dust emission in tunnels, the entire unit is moved to the smoke and dust area by the four shock-absorbing wheels 19 at the bottom of the base 13. The motor 4 rotates, causing the impeller 6 to rotate, drawing in air containing smoke and dust from the debris interception net 2. Driven by the impeller 6, the air enters between the first guide plate 7 and the second guide plate 8. Meanwhile, the pump body 14 operates in advance to pump water from the water tank 12 to the water outlet pipe 9, which is then sprayed out by multiple spray nozzles 10. The small water droplets utilize the dual effects of physical adsorption and gravity settling to remove particles from the air. Particulate matter adheres to and settles down. When the spray nozzles 10 on one side of the second guide plate 8 spray out water droplets, they encounter the action of the second guide plate 8 and flow downward to form a water curtain, increasing the dust suppression effect. The dust-suppressed air is discharged from the air outlet on the right side of the cylinder 1. The sewage containing smoke and dust flows into the water tank 12 through the water inlet 18 and is filtered by the plate activated carbon filter 17. The filtered water is then pumped out again by the pump body 14. When the plate activated carbon filter 17 is clogged, the sealing door 15 can be opened to pull it out from between the four partitions 16 for replacement.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunnel dust emission device, comprising a cylinder (1), characterized in that, The cylinder (1) is fixedly connected to a cross guide rod (3), and a motor (4) is fixedly connected to the outer wall of the cross guide rod (3). An impeller (6) is fixedly sleeved on the outer wall of the output shaft of the motor (4). The cylinder (1) is fixedly connected to two first guide plates (7), and the cylinder (1) is fixedly connected to two second guide plates (8). One of the second guide plates (8) has a through hole on its outer wall. A water outlet pipe (9) is fixedly connected to the inner wall of the through hole. Multiple spray nozzles (10) are evenly fixedly connected to the outer wall of the water outlet pipe (9). The cylinder (1) is fixedly connected to two supports (11). The cylinder (1) is fixedly connected to a water tank (12). The water tank (12) and the bottom of the two supports (11) are fixedly connected to the same base (13). A pump body (14) is fixedly connected to the top of the base (13). The water tank (12) is equipped with a filter mechanism inside.

2. The tunnel dust emission device according to claim 1, characterized in that, The filtration mechanism includes four partitions (16), the outer walls of the four partitions (16) are fixedly connected to the inner wall of the water tank (12), a plate-type activated carbon filter (17) is placed between the four partitions (16), and a water inlet hole (18) is opened between the water tank (12) and the cylinder (1).

3. The tunnel dust emission device according to claim 1, characterized in that, The inside of the cylinder (1) is fixedly connected to a debris interception net (2).

4. A tunnel dust emission device according to claim 1, characterized in that, Multiple connecting rods (5) are fixedly connected to the outer wall of the motor (4), and one end of each connecting rod (5) is fixedly connected to the inner wall of the cylinder (1).

5. A tunnel dust emission device according to claim 1, characterized in that, The input end of the pump body (14) is fixedly connected to the outer wall of the water tank (12), and the output end of the pump body (14) is fixedly connected to one end of the water outlet pipe (9).

6. A tunnel dust emission device according to claim 1, characterized in that, The outer wall of the water tank (12) is hinged with a sealing door (15).

7. A tunnel dust emission device according to claim 1, characterized in that, The bottom of the base (13) is fixedly connected to four shock-absorbing wheels (19).