Ventilation and dust removal device for tunnel
Patent Information
- Application Number
- CN202522618788.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-12-10
AI Technical Summary
[0003]隧道施工过程中，炸药爆破和机械运转等会对隧道内的空气产生污染，产生了大量CO、NO2、粉尘等，引起作业环境恶劣、影响施工人员健康、降低施工效率等一系列问题，随着隧道掘进的不断深入，施工环境还会进一步恶化，隧道通风除尘成为隧道施工中最大的难题之一
1.本实用新型所述的一种隧道用通风除尘装置，通过使用螺旋管道对空气中的灰尘进行过滤可在空气进入后通过空气在螺旋管道上的螺旋移动产生离心力，由此将空气通过孔洞排出，灰尘停留在螺旋管道内部，由此快速过滤空气中的灰尘，增加排出空气的质量。
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Figure CN224871309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel dust removal technology, specifically a ventilation and dust removal device for tunnels. Background Technology
[0002] Tunnels are passageways carved or constructed in mountains, underground, or underwater. Their core function is to facilitate transportation (highways, railways), pipeline laying, or personnel passage, shortening transportation distances and avoiding terrain obstacles.
[0003] During tunnel construction, explosive blasting and mechanical operation pollute the air inside the tunnel, producing large amounts of CO, NO2, dust, etc., causing a series of problems such as a harsh working environment, affecting the health of construction workers, and reducing construction efficiency. As the tunnel excavation continues to deepen, the construction environment will further deteriorate, and tunnel ventilation and dust removal have become one of the biggest challenges in tunnel construction.
[0004] In existing technologies, tunnel ventilation mostly uses fans to exhaust air from inside the tunnel. During the exhaust process, untreated air is directly discharged to the outside of the tunnel, which affects the air around the exhaust area.
[0005] Therefore, a ventilation and dust removal device for tunnels is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A ventilation and dust removal device for tunnels, comprising a dust collection box, with a fixed box fixedly connected to the end of the dust collection box; a fan is installed inside the fixed box; a fixed block is fixedly connected to the side wall of the fixed box; a first air inlet is fixedly connected to the middle of the fixed block; the first air inlet and the fan are connected through a pipe; multiple support rods are fixedly connected inside the dust collection box; a spiral pipe is fixedly connected to the middle of the support rods; the spiral pipe is multi-holeed; the spiral pipe and the fan are connected through a pipe; a dust collection pipe is connected to the end of the spiral pipe through a flange; and an exhaust port is connected to the side wall of the dust collection box. By using the spiral pipe to filter dust in the air, centrifugal force is generated by the spiral movement of air on the spiral pipe after air enters, thereby expelling the air through the holes, while dust remains inside the spiral pipe, thus quickly filtering dust from the air and increasing the quality of the exhaust air.
[0008] Preferably, a fixing frame is fixedly connected to the end of the dust collection box; a second air inlet is fixedly connected to the end of the fixing frame; a transmission pipe is connected to the bottom of the second air inlet; the transmission pipe and the first air inlet are connected; the second air inlet is inclined; by adding a second air inlet, air can be drawn from the upper part through the second air inlet when air is being drawn, thereby increasing the extraction area and speeding up the air extraction speed, thus making the air dust removal faster.
[0009] Preferably, a sliding rod is slidably connected to the side wall of the dust collector; a spring is fixedly connected to the end of the sliding rod; a circular plate is fixedly connected to the end of the spring; the circular plate and the dust collector are in a fixed connection relationship; by adding the sliding rod, the spiral pipe can be impacted by the sliding rod after long-term operation, thereby generating vibration in the spiral pipe, and the dust inside the spiral pipe is shaken off by the vibration, thereby reducing the dust adhering to the inner wall of the spiral pipe.
[0010] Preferably, a ball is fixed to the end of the slide bar; the ball is located inside the dust collection box; by adding the ball, flexible contact can be increased when the slide bar impacts the spiral pipe, thereby reducing the damage caused by the impact.
[0011] Preferably, both the first and second air inlets are connected to an air hood; the air hood is frustum-shaped; by adding an air hood, the suction area can be increased when the fan draws in air, thereby increasing the convenience of airflow processing.
[0012] Preferably, a protective cloth is fixedly attached to the side wall of the dust collection box; the protective cloth is sleeved on the surface of the spring; the end of the protective cloth and the spring are fixedly connected; by adding a protective cloth, the surrounding dust can be intercepted by the protective cloth during the operation of the spring, thereby reducing the direct contact between dust and the spring.
[0013] The advantages of this utility model are: 1. The ventilation and dust removal device for tunnels described in this utility model uses a spiral pipe to filter dust in the air. After the air enters, the spiral movement of the air on the spiral pipe generates centrifugal force, thereby expelling the air through the holes. The dust remains inside the spiral pipe, thus quickly filtering the dust in the air and increasing the quality of the exhaust air.
[0014] 2. The tunnel ventilation and dust removal device of this utility model can draw air from the upper part of the tunnel by adding a second air inlet, thereby increasing the extraction area and speeding up the air extraction, thus making the air dust removal faster. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0016] Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the exhaust port structure in this utility model; Figure 3 This is a schematic diagram of the guide cover in this utility model; Figure 4 This is a schematic diagram of the spiral pipe structure in this utility model; Figure 5 This is a schematic diagram of the structure of the fixing box in this utility model.
[0017] In the diagram: 1. Dust collection box; 11. Fixing box; 12. Fan; 13. Fixing block; 14. First air inlet; 15. Spiral duct; 16. Dust collection pipe; 17. Support rod; 18. Exhaust outlet; 2. Fixing frame; 21. Second air inlet; 22. Transmission pipe; 3. Sliding rod; 31. Spring; 32. Circular plate; 4. Sphere; 5. Exhaust hood; 6. Protective cloth. Detailed Implementation
[0018] 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 of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0019] Specific implementation examples are given below.
[0020] like Figures 1 to 5As shown in the embodiment of this utility model, a ventilation and dust removal device for tunnels includes a dust collection box 1, with a fixed box 11 fixed to one end of the dust collection box 1; a fan 12 is installed inside the fixed box 11; a fixed block 13 is fixed to the side wall of the fixed box 11; a first air inlet 14 is fixed to the middle of the fixed block 13; the first air inlet 14 and the fan 12 are connected by a pipe; multiple support rods 17 are fixed inside the dust collection box 1; a spiral pipe 15 is fixed to the middle of the support rods 17; the spiral pipe 15 is multi-holeed; the spiral pipe 15 and the fan 12 are connected by a pipe; a dust collection pipe 16 is connected to the end of the spiral pipe 15 by a flange; and an exhaust port 18 is connected to the side wall of the dust collection box 1. During operation, the dust collection box 1 is first moved into the tunnel, then the first air inlet 14 is aligned with the area of air to be treated, and then the fan 12 is started. After operation, the air containing dust is drawn in through the first air inlet 14 and then transported to the dust collection pipe 16 by the fan 12. When the air enters the dust collection pipe 16, it moves rapidly along the inside of the pipe. During this movement, the dust is intercepted by the holes on the spiral pipe 15, and the air is discharged through the holes. This filters the dust in the air, and the dust is gradually pushed to the end of the spiral pipe 15 and then enters the dust collection pipe 16 for storage. After the operation is completed, the dust collection pipe 16 is disassembled and the dust collected inside is disposed of. By using the spiral pipe 15 to filter the dust in the air, the centrifugal force generated by the spiral movement of the air on the spiral pipe 15 after it enters is used to discharge the air through the holes, while the dust remains inside the spiral pipe 15. This rapid filtration of the dust in the air increases the quality of the discharged air.
[0021] like Figures 2 to 5 As shown, a fixing frame 2 is fixedly connected to the end of the dust collection box 1; a second air inlet 21 is fixedly connected to the end of the fixing frame 2; a transmission pipe 22 is connected to the bottom of the second air inlet 21; the transmission pipe 22 and the first air inlet 14 are connected; the second air inlet 21 is inclined; during operation, when air is extracted, the second air inlet 21 will extract the upper air, and then transmit it through the transmission pipe 22 to the inside of the fan 12 and then into the spiral pipe 15, thereby speeding up the extraction of air; by adding a second air inlet 21, the upper air can be extracted through the second air inlet 21 when air is extracted, thereby increasing the extraction area and speeding up the extraction speed, thus making the dust removal of air faster.
[0022] like Figures 4 to 5As shown, a sliding rod 3 is slidably connected to the side wall of the dust collection box 1; a spring 31 is fixedly connected to the end of the sliding rod 3; a circular plate 32 is fixedly connected to the end of the spring 31; the circular plate 32 and the dust collection box 1 are in a fixed connection relationship; during operation, after the spiral pipe 15 has been working for a long time, the spring 31 is pulled. When the spring 31 is pulled, the circular plate 32 will extend. After the extension, the circular plate 32 will release the spring 31. At this time, the circular plate 32 will immediately return to its original position. During the return, it will drive the sliding rod 3 to impact the spiral pipe 15. When the spiral pipe 15 is impacted, it will vibrate. At this time, the spiral pipe 15 will shake off the dust inside through vibration. It will then be pushed forward by the subsequently entering air and finally enter the dust collection pipe 16. By adding the sliding rod 3, the spiral pipe 15 can be impacted by the sliding rod 3 after working for a long time, thereby causing the spiral pipe 15 to vibrate. The vibration will shake off the dust inside the spiral pipe 15, thereby reducing the dust adhering to the inner wall of the spiral pipe 15.
[0023] like Figure 4 As shown, a ball 4 is fixed to the end of the slide rod 3; the ball 4 is located inside the dust collection box 1; during operation, when the slide rod 3 impacts the spiral pipe 15, the ball 4 will first contact the spiral pipe 15. During contact, the ball 4 will absorb part of the force generated during the impact, thereby reducing the hard contact between the slide rod 3 and the spiral pipe 15; by adding the ball 4, flexible contact can be increased when the slide rod 3 impacts the spiral pipe 15, thereby reducing the damage caused by the contact impact.
[0024] like Figures 1 to 4 As shown, the surfaces of the first air inlet 14 and the second air inlet 21 are both connected to the air duct 5; the air duct 5 is frustum-shaped; during operation, when the first air inlet 14 and the second air inlet 21 draw in air, the air duct 5 will increase the traction range of the airflow, thereby allowing more air to come into contact during the draw-in process; by adding the air duct 5, the draw-in area can be increased when the fan 12 draws in air, thereby increasing the convenience of airflow processing.
[0025] like Figures 1 to 5 As shown, a protective cloth 6 is fixedly connected to the side wall of the dust collection box 1; the protective cloth 6 is sleeved on the surface of the spring 31; the end of the protective cloth 6 and the spring 31 are fixedly connected; during operation, the protective cloth 6 will protect the spring 31 and intercept the surrounding dust, so that the dust stays on the surface of the protective cloth 6; by adding the protective cloth 6, the surrounding dust can be intercepted by the protective cloth 6 during the operation of the spring 31, thereby reducing the direct contact between the dust and the spring 31.
[0026] Working principle: During operation, the dust collection box 1 is first moved into the tunnel. Then, the first air inlet 14 is aligned with the area of air to be treated. The fan 12 is then started. Once started, the fan 12 draws in dust-laden air through the first air inlet 14 and transmits it to the dust collection pipe 16. As the air enters the dust collection pipe 16, it moves rapidly along its interior. Simultaneously, dust is intercepted by holes in the spiral pipe 15, and air is discharged through these holes, thus filtering the dust. Finally, the dust is gradually pushed to the end of the spiral pipe 15 and then enters the dust collection pipe 16 for storage. After operation, the dust collection pipe 16 is disassembled for processing. When extracting air, the second air inlet 21 draws in air from the upper part of the pipe, which is then transmitted through the transmission pipe 22 to the fan 12 and then into the spiral pipe 15, thus accelerating the air extraction process. After prolonged operation, the spiral pipe 15 pulls the spring 31. When the spring 31 is pulled, the circular plate 32 extends and releases the spring 31. The circular plate 32 then immediately returns to its original position, causing the sliding rod 3 to impact the spiral pipe 15. The impact causes the spiral pipe 15 to vibrate, shaking off the dust inside. This dust is then propelled forward by the incoming air and eventually enters the dust collection pipe 16. When the sliding rod 3 impacts the spiral pipe 15, the ball 4 first contacts the spiral pipe 15. Upon contact, the ball 4 absorbs some of the impact force, reducing the hard contact between the sliding rod 3 and the spiral pipe 15. When the first air inlet 14 and the second air inlet 21 draw in air, the air hood 5 increases the traction range of the airflow, allowing more air to come into contact during the intake process. During operation, the protective cloth 6 protects the spring 31 and intercepts surrounding dust, keeping it on its surface.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A ventilation and dust removal device for tunnels, characterized in that: The dust collector includes a dust collection box (1), with a fixed box (11) fixed to the end of the dust collection box (1); a fan (12) is installed inside the fixed box (11); a fixed block (13) is fixed to the side wall of the fixed box (11); a first air inlet (14) is fixed to the middle of the fixed block (13); the first air inlet (14) and the fan (12) are connected by a pipe; multiple support rods (17) are fixed inside the dust collection box (1); a spiral pipe (15) is fixed to the middle of the support rod (17); the spiral pipe (15) is multi-hole; the spiral pipe (15) and the fan (12) are connected by a pipe; a dust collection pipe (16) is connected to the end of the spiral pipe (15) by a flange; and an exhaust port (18) is connected to the side wall of the dust collection box (1).
2. The ventilation and dust removal device for tunnels according to claim 1, characterized in that: The dust collector (1) is fixedly connected to a fixed frame (2) at one end; the fixed frame (2) is fixedly connected to a second air inlet (21) at one end; the bottom of the second air inlet (21) is connected to a transmission pipe (22); the transmission pipe (22) and the first air inlet (14) are connected; the second air inlet (21) is inclined.
3. A ventilation and dust removal device for tunnels according to claim 2, characterized in that: The dust collector (1) has a sliding rod (3) slidably connected to its side wall; a spring (31) is fixedly connected to the end of the sliding rod (3); a circular plate (32) is fixedly connected to the end of the spring (31); the circular plate (32) and the dust collector (1) are in a fixed connection relationship.
4. A ventilation and dust removal device for tunnels according to claim 3, characterized in that: A ball (4) is fixed to the end of the slide bar (3); the ball (4) is located inside the dust collection box (1).
5. A ventilation and dust removal device for tunnels according to claim 4, characterized in that: The first air inlet (14) and the second air inlet (21) are both connected to the air duct (5); the air duct (5) is frustum shaped.
6. A ventilation and dust removal device for tunnels according to claim 5, characterized in that: The dust collector (1) has a protective cloth (6) fixedly attached to its side wall; the protective cloth (6) is sleeved on the surface of the spring (31); the end of the protective cloth (6) and the spring (31) are fixedly connected.