Tunnel mobile dust collector

Abstract

The present application relates to dust suction equipment technical field, disclose a kind of tunnel mobile dust suction vehicle, including dust suction vehicle main body and dust suction component;Dust suction component includes dust suction bin, two filter cartridges, U-shaped hollow mounting frame, dust suction seat, spray assembly and dust removal component, dust suction fan is started to generate negative pressure in the process of dust suction vehicle main body advancing in tunnel, the air containing dust in tunnel is inhaled into dust suction bin by dust suction seat, dust-containing gas first enters dust suction air inlet cavity, after airflow distribution, it is evenly flowed to the filter cartridge symmetrically installed between bilateral filtration air outlet duct, dust is trapped on the outer surface of filter cartridge under the combined effect of Brownian diffusion, interception, purified air passes through filter cartridge and enters exhaust cavity, finally, exhaust from dust suction bin;Effectively solve the problem that water dusting effect is short-lived in prior art, dust recovers rapidly after water evaporation and accumulated water affects driving safety, significantly improve the reliability and use convenience of tunnel dust removal operation.

Description

Technical Field

[0001] This invention relates to the field of vacuum equipment technology, and in particular to a tunnel mobile vacuum truck. Background Technology

[0002] As a crucial component of transportation infrastructure, the internal environment of tunnels directly impacts driving safety, equipment lifespan, and the occupational health of maintenance personnel. During tunnel construction, operation, and maintenance, factors such as vehicle braking, tire wear, road dust, and construction activities cause a significant accumulation of particulate matter inside the tunnel. Especially in long tunnels, where air circulation is limited, dust cannot disperse naturally. Long-term accumulation not only reduces visibility inside the tunnel and increases the risk of traffic accidents but also accelerates the aging and wear of electromechanical equipment and causes irreversible damage to the respiratory system of inspection and maintenance personnel.

[0003] Currently, dust removal in tunnels mainly relies on the following methods: first, using a fixed ventilation system for air exchange and dust removal; second, using manual water spraying to reduce dust.

[0004] However, in the aforementioned existing technologies, the dust suppression effect is short-lived, the dust pollution quickly recovers after the moisture evaporates, and the water accumulation may affect driving safety, making them inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide a tunnel mobile vacuum cleaner that solves the problems of short dust suppression duration, rapid recovery of dust pollution after moisture evaporation, and potential impact of water accumulation on driving safety and inconvenience in use in the prior art.

[0006] To achieve the above objectives, the present invention provides a tunnel mobile vacuum cleaner, comprising a vacuum cleaner body and a vacuuming assembly; the vacuuming assembly includes a vacuum chamber, two filter cartridges, a U-shaped hollow mounting frame, a vacuum seat, a spray assembly, and a dust removal assembly. The vacuum chamber is detachably connected to the vacuum cleaner body and is located above the vacuum cleaner body. The vacuum seat communicates with the vacuum chamber and is located at the input end of the vacuum chamber, also above the vacuum cleaner body. The U-shaped hollow mounting frame is fixed to the vacuum chamber. The U-shaped hollow mounting frame is connected to the inner wall of the dust collection chamber. The inner bottom of the U-shaped hollow mounting frame and the inner bottom of the dust collection chamber form a dust collection air inlet chamber. The top of the U-shaped hollow mounting frame and the inner top of the dust collection chamber form an exhaust air chamber. The U-shaped hollow mounting frame and the dust collection chamber form a double-sided filter air outlet duct. Two filter cartridges are symmetrically installed between the double-sided filter air outlet ducts. The spray assembly is connected to the main body of the dust collection vehicle. The dust removal assembly is connected to the dust collection chamber. The dust collection seat has a dust collection fan inside.

[0007] The spray assembly includes a cooling device, a connecting pipe, a water tank, a support pipe, and a spray holder. The cooling device is installed above the main body of the vacuum cleaner. The water tank is detachably connected to the main body of the vacuum cleaner and is located on the outer side wall of the main body. The connecting pipe is connected to the input end of the cooling device and the water tank. The support pipe is fixedly connected to the main body of the vacuum cleaner and is located above the main body of the vacuum cleaner. The support pipe is connected to the output end of the water tank. The spray holder is connected to the support pipe and is located above the support pipe.

[0008] The dust removal assembly includes an electromagnetic pulse generator, an air inlet pipe, and a discharge valve pipe. The electromagnetic pulse generator is located on one side of the dust collection chamber. The air inlet pipe is connected to both the electromagnetic pulse generator and the dust collection chamber, with the end of the air inlet pipe located at the axis of the filter cartridge. The discharge valve pipe is installed on one side of the dust collection chamber.

[0009] The vacuuming assembly also includes a folding vacuum fan, which is movably connected to the vacuum base and located on one side of the vacuum base.

[0010] The dust collection assembly also includes an inspection door, which is hinged to the dust collection chamber and located on the outer wall of the dust collection chamber.

[0011] The filter cartridge is made of folded high-density polyester fiber or nanofiber membrane material.

[0012] The tunnel mobile vacuum cleaner also includes a distance detection component, which includes a base, a connecting frame, a distance sensor, and a photoelectric alarm. The base is fixedly connected to the main body of the vacuum cleaner and is located above the main body of the vacuum cleaner. The connecting frame is fixedly connected to the base and is located above the base. The distance sensor is fixedly connected to the connecting frame and is located above the connecting frame. The photoelectric alarm is fixedly connected to the base and is located above the base.

[0013] This invention discloses a mobile tunnel vacuum cleaner. As the vacuum cleaner moves within a tunnel, the vacuum fan inside the vacuum base activates, generating negative pressure. This draws dust-laden air from the tunnel into the vacuum chamber. The dust-laden gas first enters the vacuum inlet chamber, and after airflow distribution, flows evenly to the filter cartridges symmetrically installed between the double-sided filter outlet ducts. Dust is trapped on the outer surface of the filter cartridges due to a combination of Brownian diffusion and interception effects. The purified air passes through the filter cartridges into the exhaust chamber and is finally discharged from the vacuum chamber, thus achieving air purification and filtration in the tunnel. Simultaneously, the spray assembly sprays air onto the vacuum... The dust truck sprays water mist from both sides of its main body to assist in dust suppression in the work area. This not only inhibits the spread of dust that is not sucked in, but also avoids water accumulation on the road surface caused by large-volume water spraying, thus reducing the temperature of the excavation face. Meanwhile, the dust removal components periodically apply pulse backflushing or vibration cleaning to the filter cartridges, causing the dust adhering to the surface of the filter cartridges to fall into the dust hopper, restoring the filtration performance of the filter cartridges, and preventing clogging and increased resistance caused by dust accumulation. This effectively solves the problems of short-lived dust suppression effect, rapid dust recovery after water evaporation, and water accumulation affecting driving safety in existing technologies, significantly improving the reliability and ease of use of tunnel dust removal operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention from another direction.

[0017] Figure 3 This is the invention Figure 1 The right view.

[0018] Figure 4 This is the invention Figure 3 A sectional view along line AA.

[0019] Figure 5 This is the invention Figure 1 Rear view.

[0020] Figure 6 This is the invention Figure 5 BB line section view.

[0021] Figure 7 This is a schematic diagram of the unfolded structure of the folding vacuum fan of the present invention.

[0022] In the diagram: 101-Main body of the vacuum truck, 102-vacuum chamber, 103-filter cartridge, 104-U-shaped hollow mounting frame, 105-vacuum seat, 106-folding vacuum fan, 107-inspection door, 108-cooling equipment, 109-connecting pipe, 110-water tank, 111-support pipe, 112-spray seat, 113-electromagnetic pulse generator, 114-air inlet pipe, 115-discharge valve pipe, 116-base, 117-connecting frame, 118-distance sensor, 119-photoelectric alarm, 120-vacuum fan, 121-vacuum inlet chamber, 122-exhaust chamber, 123-dual-sided filter outlet duct. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] First embodiment: Please refer to Figures 1 to 7 , Figure 1 This is a structural schematic diagram of the first embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention from another direction. Figure 3 This is the invention Figure 1 The right view, Figure 4 This is the invention Figure 3 AA-line sectional view, Figure 5 This is the invention Figure 1 Rear view, Figure 6 This is the invention Figure 5 BB line section view, Figure 7 This is a schematic diagram of the unfolded structure of the folding vacuum fan of the present invention.

[0025] This invention provides a tunnel mobile vacuum cleaner, including a vacuum cleaner body 101 and a vacuuming assembly. The vacuuming assembly includes a vacuum chamber 102, two filter cartridges 103, a U-shaped hollow mounting frame 104, a vacuum seat 105, a folding vacuum fan 106, an inspection door 107, a spray assembly, and a dust removal assembly. The spray assembly includes a cooling device 108, a connecting pipe 109, a water tank 110, a support pipe 111, and a spray seat 112. The dust removal assembly includes an electromagnetic pulse generator 113, an air inlet pipe 114, and a discharge valve pipe 115. The vacuum truck also includes a distance detection component, which includes a base 116, a connecting frame 117, a distance sensor 118, and a photoelectric alarm 119. The vacuum seat 105 has a vacuum fan 120 inside. The inner bottom of the U-shaped hollow mounting frame 104 and the inner bottom of the vacuum chamber 102 form a vacuum inlet chamber 121. The top of the U-shaped hollow mounting frame 104 and the inner top of the vacuum chamber 102 form an exhaust chamber 122. The U-shaped hollow mounting frame 104 and the vacuum chamber 102 form a double-sided filtered air outlet duct 123.

[0026] The dust collection chamber 102 is detachably connected to the main body 101 of the vacuum cart and is located above the main body 101. The dust collection seat 105 communicates with the dust collection chamber 102 and is located at the input end of the dust collection chamber 102, also located above the main body 101. The U-shaped hollow mounting frame 104 is fixedly connected to the dust collection chamber 102 and is located on the inner wall of the dust collection chamber 102. The inner bottom of the U-shaped hollow mounting frame 104 is aligned with the inner bottom of the dust collection chamber 102. The system forms a dust inlet chamber 121, and the top of the U-shaped hollow mounting frame 104 and the inner top of the dust collection chamber 102 form an exhaust chamber 122. The U-shaped hollow mounting frame 104 and the dust collection chamber 102 form a double-sided filter exhaust duct 123. Two filter cartridges 103 are symmetrically installed between the double-sided filter exhaust ducts 123. The spray assembly is connected to the main body 101 of the vacuum truck, and the dust removal assembly is connected to the dust collection chamber 102. The vacuum seat 105 has a vacuum fan 120 inside.

[0027] In this embodiment, as the vacuum truck body 101 travels within the tunnel, the vacuum fan 120 within the vacuum seat 105 activates to generate negative pressure, drawing dust-laden air from the tunnel into the vacuum chamber 102. The dust-laden gas first enters the vacuum inlet chamber 121, and after airflow distribution, flows evenly to the filter cartridges 103 symmetrically installed between the double-sided filter outlet ducts 123. Dust is trapped on the outer surface of the filter cartridges 103 under the combined effects of Brownian diffusion and interception. The purified air passes through the filter cartridges 103 into the exhaust chamber 122 and is finally discharged from the vacuum chamber 102, achieving the purification and filtration of tunnel air. Simultaneously, the… The spray assembly sprays water mist onto both sides of the main body 101 of the vacuum truck to assist in dust suppression in the work area. This not only inhibits the spread of dust that is not sucked up, but also avoids water accumulation on the road surface caused by large-volume water spraying, thus reducing the temperature of the excavation face. Meanwhile, the dust removal assembly periodically applies pulse backflushing or vibration cleaning to the filter cartridge 103, causing the dust adhering to the surface of the filter cartridge 103 to fall into the ash hopper, restoring the filtration performance of the filter cartridge 103, and preventing clogging and increased resistance caused by dust accumulation. This effectively solves the problems of short-lived dust suppression effect, rapid dust recovery after water evaporation, and water accumulation affecting driving safety in the prior art, significantly improving the reliability and ease of use of tunnel dust removal operations.

[0028] Furthermore, the cooling device 108 is installed above the vacuum truck body 101, the water tank 110 is detachably connected to the vacuum truck body 101 and located on the outer side wall of the vacuum truck body 101, the connecting pipe 109 is connected to the input end of the cooling device 108 and the water tank 110 respectively, the support pipe 111 is fixedly connected to the vacuum truck body 101 and located above the vacuum truck body 101, and the support pipe 111 is connected to the output end of the water tank 110, the spray seat 112 is connected to the support pipe 111 and located above the support pipe 111.

[0029] In this embodiment, water for dust suppression is stored in the water tank 110, transported to the cooling device 108 via the connecting pipe 109 for cooling, and then guided to the spray seat 112 via the support pipe 111. Atomized water mist is sprayed onto both sides of the vacuum truck body 101, thereby assisting in dust suppression on both sides of the tunnel during vacuuming operations. This effectively suppresses the spread of dust not sucked up by the vacuum seat 105, and avoids road surface water accumulation by finely controlling the water mist particles. This solves the problems of rapid dust recovery after water evaporation and water accumulation affecting driving safety in traditional water-spraying dust suppression. Simultaneously, the cooling device 108 cools the sprayed water, achieving air temperature regulation in the high-temperature tunnel environment and improving operational comfort. Furthermore, the support pipe 111 and the spray seat 112 are positioned above the vacuum truck body 101, providing a wide spray coverage area. Combined with the vacuuming action of the vacuum chamber 102, this forms a dual dust suppression system of "vacuuming + spraying," further enhancing the comprehensiveness and durability of tunnel dust removal.

[0030] Furthermore, the electromagnetic pulse generator 113 is disposed on one side of the dust collection chamber 102, the air inlet pipe 114 is connected to the electromagnetic pulse generator 113 and the dust collection chamber 102 respectively, and the end of the air inlet pipe 114 is located at the axis of the filter cartridge 103, and the discharge valve pipe 115 is installed on one side of the dust collection chamber 102.

[0031] In this embodiment, the dust removal component generates a high-pressure pulsed airflow through the electromagnetic pulser 113, which is then transported to the interior of the filter cartridge 103 through the air inlet pipe 114. This causes the filter cartridge 103 to expand and vibrate instantaneously, shaking off the dust layer adhering to its outer surface. Simultaneously, the discharge valve pipe 115 promptly discharges the detached dust into the dust collection chamber 102, thereby preventing the filter cartridge 103 from becoming clogged due to dust accumulation. This effectively maintains the filtration resistance of the filter cartridge 103 within the normal range, ensuring continuous and efficient operation of the dust collection process, extending the service life of the filter cartridge 103, and solving the problem of decreased dust collection efficiency and frequent downtime maintenance caused by filter cartridge clogging in traditional dust removal equipment. This significantly improves the continuous operation capability and dust removal stability of the tunnel mobile dust collection vehicle.

[0032] Furthermore, the foldable vacuum fan 106 is movably connected to the vacuum base 105 and is located on one side of the vacuum base 105.

[0033] In this embodiment, by setting five sets of foldable vacuum fans 106 and opening them sequentially to a size matching the cross-sectional area of ​​the tunnel, large-area coverage vacuuming of the entire tunnel cross-section can be achieved, effectively increasing the effective cross-sectional area of ​​the intake airflow and avoiding dust escape and blind spots caused by excessively small suction ports. At the same time, the foldable structure of the foldable vacuum fans 106 makes it easy to retract when not in operation or when passing through narrow sections of the tunnel, reducing the width of the equipment and significantly improving the passability and spatial adaptability of the vacuum truck body 101. Furthermore, the design of the five sets of fan blades opening sequentially can be graded according to the actual tunnel cross-sectional shape, making the suction port contour more closely fit the inner wall of the tunnel, further optimizing the airflow distribution, and enhancing the ability to capture dust at the intersection of the tunnel wall and the road surface. Thus, while ensuring vacuuming efficiency, the equipment's flexible maneuverability in complex tunnel environments is also taken into account.

[0034] The main body 101 of the vacuum truck drives to about 20 meters away from the excavation face, and opens the umbrellas of the five sets of foldable vacuum fans 106 to fully cover the entire tunnel. Within 20 minutes, the dust on the entire working face can be sucked up and processed through the dust collection bin, giving the working face a comfortable space. The sprayer then cools the working face, making it more suitable for the next operation. After the dust on the working face is sucked up, the loader and the muck truck can then enter to work. After the main body 101 of the vacuum truck passes through the three-arm rock drilling rig, the arch erecting rig, the inverted arch trestle, the secondary lining rig, and the maintenance rig, during the process of driving out of the tunnel, any one of the five sets of umbrella blades can be retracted independently to avoid the large air supply pipe that runs through the entire tunnel ceiling. The remaining four sets of umbrellas open to absorb the vehicle exhaust and harmful dust left in the tunnel by the working vehicles.

[0035] The umbrella surface of the folding vacuum fan 106 is tilted at an angle of 70 degrees. A negative pressure is generated by the vacuum fan 120 inside the vacuum seat 105. The middle of the umbrella ribs is a vacuum channel, through which dust is absorbed. The middle of the umbrella ribs is a hollow telescopic tube with a diameter of 350 mm. Dust is sucked into the vacuum chamber 102 along this tube. The folding vacuum fan 106 is controlled by two electric cylinders outside the tube to extend and retract.

[0036] Furthermore, the inspection door 107 is hinged to the dust collection chamber 102 and is located on the outer side wall of the dust collection chamber 102.

[0037] In this embodiment, the inspection door 107 facilitates maintenance personnel to enter the dust collection chamber 102 for maintenance.

[0038] Furthermore, the filter cartridge 103 is made of folded high-density polyester fiber or nanofiber membrane material.

[0039] In this embodiment, the filter cartridge 103 is made of folded high-density polyester fiber or nanofiber membrane material. The pleated design significantly increases the filtration area and improves the dust removal efficiency to 99.9%~99.99%. The filter cartridge can be arranged vertically or at an angle, with vertical arrangement providing the best dust removal effect.

[0040] Furthermore, the base 116 is fixedly connected to the vacuum cleaner body 101 and located above the vacuum cleaner body 101; the connecting frame 117 is fixedly connected to the base 116 and located above the base 116; the distance sensor 118 is fixedly connected to the connecting frame 117 and located above the connecting frame 117; and the photoelectric alarm 119 is fixedly connected to the base 116 and located above the base 116.

[0041] In this embodiment, the base 116 provides a stable mounting foundation for the connecting frame 117 and the photoelectric alarm 119. The connecting frame 117 raises the distance sensor 118 to a predetermined height, enabling the distance sensor 118 to detect the distance to lateral obstacles in real time during tunnel travel. When the distance to the tunnel wall, construction facilities, or other vehicles is detected to be less than a safety threshold, the photoelectric alarm 119 immediately emits an audible and visual warning signal to remind the operator to adjust the driving direction or speed in time, thereby effectively avoiding collision accidents of the vacuum truck body 101 in the narrow space of the tunnel, ensuring driving safety and equipment integrity. At the same time, the coordinated work of the distance sensor 118 and the photoelectric alarm 119 realizes intelligent anti-collision warning for tunnel dust removal operations, solving the problems of inaccurate distance judgment and delayed response by manual visual judgment, and significantly improving the operational safety and automation level of the vacuum truck body 101 in complex tunnel environments.

[0042] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A tunnel mobile vacuum cleaner, characterized in that, Includes the main body of the vacuum cleaner and vacuuming components; The vacuuming assembly includes a vacuum chamber, two filter cartridges, a U-shaped hollow mounting frame, a vacuum seat, a spray assembly, and a dust removal assembly. The vacuum chamber is detachably connected to the main body of the vacuuming cart and is located above the main body. The vacuum seat communicates with the vacuum chamber and is located at the input end of the vacuum chamber, also above the main body. The U-shaped hollow mounting frame is fixedly connected to the vacuum chamber and is located on the inner wall of the vacuum chamber. The inner bottom of the U-shaped hollow mounting frame and the inner bottom of the vacuum chamber form a vacuum inlet chamber. The top of the U-shaped hollow mounting frame and the inner top of the vacuum chamber form an exhaust chamber. The U-shaped hollow mounting frame and the vacuum chamber form a double-sided filtration outlet duct. The two filter cartridges are symmetrically installed between the double-sided filtration outlet ducts. The spray assembly is connected to the main body of the vacuuming cart, and the dust removal assembly is connected to the vacuum chamber. The vacuum seat contains a vacuum fan.

2. The tunnel mobile vacuum cleaner as described in claim 1, characterized in that, The spray assembly includes a cooling device, a connecting pipe, a water tank, a support pipe, and a spray holder. The cooling device is installed above the main body of the vacuum cleaner. The water tank is detachably connected to the main body of the vacuum cleaner and is located on the outer side wall of the main body of the vacuum cleaner. The connecting pipe is connected to the input end of the cooling device and the water tank respectively. The support pipe is fixedly connected to the main body of the vacuum cleaner and is located above the main body of the vacuum cleaner. The support pipe is connected to the output end of the water tank. The spray holder is connected to the support pipe and is located above the support pipe.

3. The tunnel mobile vacuum cleaner as described in claim 2, characterized in that, The dust removal assembly includes an electromagnetic pulse generator, an air inlet pipe, and a discharge valve pipe. The electromagnetic pulse generator is located on one side of the dust collection chamber. The air inlet pipe is connected to both the electromagnetic pulse generator and the dust collection chamber, and the end of the air inlet pipe is located at the axis of the filter cartridge. The discharge valve pipe is installed on one side of the dust collection chamber.

4. The tunnel mobile vacuum cleaner as described in claim 3, characterized in that, The vacuuming assembly also includes a folding vacuum fan, which is movably connected to the vacuum base and located on one side of the vacuum base.

5. The tunnel mobile vacuum cleaner as described in claim 4, characterized in that, The vacuuming assembly also includes an access door, which is hinged to the vacuum chamber and located on the outer wall of the vacuum chamber.

6. The tunnel mobile vacuum cleaner as described in claim 5, characterized in that, The filter cartridge is made of folded high-density polyester fiber or nanofiber membrane material.

7. The tunnel mobile vacuum cleaner as described in claim 6, characterized in that, The tunnel mobile vacuum cleaner also includes a distance detection component, which includes a base, a connecting frame, a distance sensor, and a photoelectric alarm. The base is fixedly connected to the main body of the vacuum cleaner and is located above the main body of the vacuum cleaner. The connecting frame is fixedly connected to the base and is located above the base. The distance sensor is fixedly connected to the connecting frame and is located above the connecting frame. The photoelectric alarm is fixedly connected to the base and is located above the base.

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