Self-moving dust collection ventilation equipment for tunnel construction

Abstract

The invention is suitable for the technical field of tunnel construction equipment, and provides tunnel construction self-moving type dust collection ventilation equipment which comprises an AGV trolley and a dust collection mechanism above the AGV trolley. The dust collecting mechanism comprises a group of mounting plates; the dust collection cylinder is rotationally matched between the two mounting plates through a bearing, one end of the dust collection cylinder is an open dust collection surface, a stainless steel filter screen is arranged on the open dust collection surface, the other end of the dust collection cylinder is communicated with the adsorption end of the fan through a dust guide pipe, and the discharge end of the fan is communicated with the dust collection bin through the dust guide pipe; efficient collection and treatment of dust in tunnel construction are achieved; the deep purification of the air on the construction site is jointly ensured, the dust pollution is obviously reduced, and the quality of the whole working environment is improved; and meanwhile, an intelligent monitoring system formed by the integrated dust sensor group and the PLC can monitor the dust concentration in real time and adaptively adjust the working state of the dust collection mechanism, so that the optimal dust removal effect is always kept, and the autonomy and reliability of the equipment are remarkably enhanced.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel construction equipment, and particularly relates to a self-mobile dust collection and ventilation equipment for tunnel construction. Background Art

[0002] During the tunnel construction process, due to the complexity of geological conditions, the operation of construction machinery, and the handling of construction materials, a large amount of dust and harmful gases will be generated; these dust and gases not only pose a serious threat to the respiratory health of construction workers, but also reduce construction efficiency, affect project quality, and even have a long-term negative impact on the surrounding environment; most traditional tunnel construction dust treatment methods use fixed ventilation equipment and dust removal devices, but these devices have the following deficiencies:

[0003] 1. Fixity: Traditional ventilation equipment is usually fixed at a certain position in the tunnel and is difficult to flexibly adjust according to the dust concentration differences in different construction areas in the tunnel, resulting in poor dust removal effects;

[0004] 2. Inefficiency: Traditional dust removal devices often rely on a single dust removal method, which is inefficient in dealing with a large amount of dust and is prone to equipment blockage due to dust accumulation;

[0005] 3. High manual intervention: Since the dust removal device needs to be manually cleaned regularly, this not only increases the construction cost, but also brings additional safety risks and reduces construction efficiency;

[0006] 4. Poor environmental adaptability: The complexity and variability of the tunnel construction environment make it difficult for traditional dust removal equipment to meet the requirements of different construction positions and complex construction environments, restricting its application scope. Summary of the Invention

[0007] The present invention provides a self-mobile dust collection and ventilation equipment for tunnel construction, aiming to solve the problems of fixity, inefficiency, high manual intervention, and poor environmental adaptability existing in the existing tunnel construction dust treatment methods.

[0008] The present invention is implemented as follows. A self-mobile dust collection and ventilation equipment for tunnel construction includes an AGV cart and a dust collection mechanism above it;

[0009] Among them, the dust collection mechanism includes:

[0010] A group of mounting plates symmetrically arranged on the AGV cart;

[0011] A dust suction cylinder rotatably fitted between the two mounting plates through bearings, one end of which is an open dust suction surface, and a stainless steel filter screen is arranged on the open dust suction surface. The other end is connected to the adsorption end of the fan through a dust guide pipe, and the exhaust end of the fan is connected to the lower region of the dust collection bin through a dust guide pipe;

[0012] The dust collection bin is divided into a dust removal chamber and a water washing chamber by a vertical plate, and the water washing chamber is filled with a water washing liquid;

[0013] At least two groups of dust removal filter bags arranged in parallel are provided in the dust removal chamber;

[0014] A blowpipe is provided in the upper region of the dust removal chamber. Nozzles opposite to the dust removal filter bags are evenly distributed on the blowpipe. The blowpipe extends to the outside of the dust collection bin and is connected to a compressed air bag through an electromagnetic pulse valve;

[0015] A dust guide port is communicated between the dust removal chamber and the water washing chamber, and a water washing pipe is communicated with the dust guide port. The water inlet of the water washing pipe is located at one-third of the height of the water washing chamber;

[0016] An air guide port is opened on the outer side of the water washing chamber away from the dust removal chamber, and a filter box is communicated with the outside of the air guide port.

[0017] Preferably, an electric telescopic rod arranged in the vertical direction is provided on the AGV trolley, and a wedge-shaped pad is fixedly connected to the end of the piston rod of the electric telescopic rod. The pad is connected to the bottom side of the dust suction cylinder through a universal ball hinge.

[0018] Preferably, a primary filter layer, an activated carbon fiber layer and a HEPA filter paper layer are sequentially arranged in the filter box in the gas flow direction, and an exhaust port is opened on one side of the filter box adjacent to the HEPA filter paper layer.

[0019] Preferably, a universal joint bracket is provided on the top side of the dust collection bin, and a 3D lidar is provided on the universal joint bracket.

[0020] Preferably, a detection mechanism is provided on the outside of the dust collection bin. The detection mechanism includes a dust sensor group and a PLC controller. The PLC controller is electrically connected to the dust collection mechanism, the electric telescopic rod and the dust sensor group.

[0021] Preferably, the dust sensor group includes a laser scattering sensor, an infrared photoelectric sensor and a static charge sensor.

[0022] Preferably, sealing doors are respectively hinged and matched on the outside of the dust removal chamber and the water washing chamber, and a transparent viewing window is provided on the sealing door corresponding to the dust removal chamber.

[0023] Preferably, a conical ash hopper is provided at the bottom of the dust removal chamber.

[0024] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0025] First: Through the flexible adjustment of the dust suction cylinder, the efficient filtration of the dust removal filter bag, the further dust removal in the water washing chamber, and the fine treatment of the three-layer filtration system, the present invention can efficiently collect and process the dust in tunnel construction, ensuring deep purification of the air. This not only reduces the dust pollution at the construction site but also protects the respiratory health of workers and improves the quality of the overall working environment.

[0026] Second: The integrated dust sensor group of the present invention monitors the dust concentration in real time. Once the concentration exceeds the standard, it immediately triggers the alarm and adjustment mechanism of the PLC controller. This intelligent monitoring and adaptive adjustment ability enable the dust collection mechanism to flexibly adjust its working state according to the actual situation of the construction environment, such as increasing the suction force of the dust suction cylinder or extending the blowing cycle of the dust removal filter bag, so as to always maintain the best dust removal effect. This intelligent design not only improves the operation efficiency of the equipment but also reduces the need for manual intervention, enhancing the autonomy and reliability of the equipment.

[0027] Third: The air that has undergone dust removal and water washing treatment in the present invention will undergo secondary filtration before being discharged, ensuring that the discharged air quality meets environmental protection requirements. This design reduces the negative impact of dusty construction activities on the surrounding environment. At the same time, the autonomous movement ability of the AGV vehicle and the flexible adjustment function of the dust collection mechanism enable this solution to meet the needs of different construction locations and complex construction environments, improving the versatility and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 3 is a three-dimensional structural schematic diagram of the present invention;

[0031] Figure 4 is a top view of the present invention;

[0032] Figure 5 is a right view of the present invention;

[0033] Figure 6 is a front view of the present invention;

[0034] Figure 7 is a rear view of the present invention;

[0035] Figure 8 is a front sectional structural schematic diagram of the present invention;

[0036] Figure 9 is a side sectional structural schematic diagram of the present invention;

[0037] In the figure: 1. AGV cart; 2. mounting plate; 3. dust suction cylinder; 4. stainless steel filter screen; 5. dust guide pipe; 6. fan; 7. dust collection bin; 8. vertical plate; 9. dust removal chamber; 10. water washing chamber; 11. dust removal filter bag; 12. blowing pipe; 13. nozzle; 14. electromagnetic pulse valve; 15. compressed air pack; 16. water washing pipe; 17. air guide port; 18. filter box; 19. electric telescopic rod; 20. cushion block; 21. primary filter layer; 22. activated carbon fiber layer; 23. HEPA filter paper layer; 24. exhaust port; 25. universal joint bracket; 26. 3D lidar; 27. dust sensor group; 28. PLC controller; 29. sealing door; 30. window; 31. ash hopper. Detailed implementation manners

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0039] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0040] An embodiment of the present invention provides a self-mobile dust collection and ventilation device for tunnel construction, as Figures 1-9 shown, which includes an AGV cart 1 and a dust collection mechanism above it;

[0041] The dust collection mechanism includes:

[0042] A set of mounting plates 2 symmetrically arranged on the AGV cart 1;

[0043] A dust suction cylinder 3 rotatably fitted between two mounting plates 2 through bearings, one end of which is an open dust suction surface, on which a stainless steel filter screen 4 is arranged, and the other end is connected to the adsorption end of a fan 6 through a dust guide pipe 5, and the discharge end of the fan 6 is connected to the lower region of a dust collection bin 7 through a dust guide pipe 5;

[0044] The dust collecting bin 7 is divided into a dust removal chamber 9 and a water washing chamber 10 by a vertical plate 8, and the water washing chamber 10 is filled with water washing liquid;

[0045] At least two groups of dust removal filter bags 11 arranged in parallel are arranged in the dust removal chamber 9;

[0046] The upper area of the dust removal chamber 9 is provided with a blow pipe 12, on which nozzles 13 are evenly distributed opposite to the dust removal filter bag 11, and the blow pipe 12 extends to the outside of the dust collection bin 7 and is connected to a compressed air bag 15 through an electromagnetic pulse valve 14;

[0047] A dust guide port is connected between the dust removal chamber 9 and the water washing chamber 10, and a water washing pipe 16 is connected to the dust guide port. The water inlet of the water washing pipe 16 is located at one third of the height of the water washing chamber 10;

[0048] An air inlet 17 is provided on the outside of the washing chamber 10 away from the dust removal chamber 9 , and a filter box 18 is connected to the outside of the air inlet 17 .

[0049] It should be noted that, due to the problems of fixedness, inefficiency, high manual intervention and poor environmental adaptability of the existing tunnel construction dust treatment methods, this solution realizes efficient collection and deep purification of dust in tunnel construction through flexible adjustment of the dust collection tube 3, efficient filtration of the dust filter bag 11, further dust removal of the water washing chamber 10 and a three-layer filtration system, which not only significantly reduces the dust pollution at the construction site and improves the quality of the working environment, but also the integrated dust sensor group 27 cooperates with the PLC controller 28 to realize real-time monitoring of dust concentration and intelligent adaptive adjustment of the dust collecting mechanism, improves the equipment operation efficiency, reduces manual intervention, and enhances the autonomy and reliability of the equipment; in addition, the air that has been treated with dust removal and water washing is filtered twice before being discharged, reducing the negative impact of construction activities on the surrounding environment; at the same time, the autonomous movement ability of the AGV car 1 and the flexible adjustment function of the dust collecting mechanism enable the present invention to adapt to the needs of different construction locations and complex construction environments, showing a high degree of versatility and practicality.

[0050] Specifically, in this embodiment, the scheme mainly includes an AGV trolley 1 and a dust collecting mechanism above it; the AGV trolley 1 is responsible for autonomous movement in the tunnel to meet the needs of different construction locations; the dust collecting mechanism is responsible for key links such as dust suction, dust removal and water washing, and the dust suction cylinder 3 is rotatably matched between two symmetrically arranged mounting plates 2 through bearings to achieve angle adjustment, and its open dust suction surface faces the dust source in the tunnel; the open end of the dust suction cylinder 3 is equipped with a stainless steel filter 4, which can effectively block the entry of large impurities and allow dust-containing air to pass through. When the fan 6 is started, the open end of the dust suction cylinder 3 inhales dust-containing air through the negative pressure effect; the air is then sent to the adsorption end of the fan 6 through the dust guide pipe 5, and then transported to the lower area of the dust collection bin 7;

[0051] The interior of the dust collection bin 7 is divided into two parts, a dust removal chamber 9 and a water washing chamber 10, by a vertical plate 8; inside the dust removal chamber 9, at least two groups of parallel arranged dust removal filter bags 11 filter the dust in the air; the dust is intercepted by the filter bags, while the clean air continues to flow upward;

[0052] In order to maintain the filtering efficiency of the dust removal filter bags 11, the blowing pipe 12 periodically sprays compressed air onto the filter bags; the nozzles 13 on the blowing pipe 12 face the dust removal filter bags 11 and are connected to the compressed air tank 15 through electromagnetic pulse valves 14; when the electromagnetic pulse valves 14 are opened, the compressed air is instantaneously released, causing the dust on the dust removal filter bags 11 to fall off, thereby restoring their filtering ability;

[0053] The fallen dust falls to the bottom of the dust removal chamber 9, and part of the dust will enter the water washing chamber 10 through the dust guide port along with the water washing pipe 16; the water washing chamber 10 is filled with water washing liquid, and the dust is mixed with the water washing liquid here to further achieve the dust removal effect; the water inlet of the water washing pipe 16 is located at one-third of the height of the water washing chamber 10 to ensure that the water washing liquid can fully contact the dust;

[0054] Finally, the air that has undergone dust removal and water washing is discharged from the dust collection bin 7 through the air guide port 17; outside the air guide port 17, a filter box 18 is also provided to perform secondary filtration on the discharged air to ensure that the discharged air quality meets the environmental protection requirements.

[0055] In a further preferred embodiment of the present invention, as Figure 9 shown, an electric telescopic rod 19 arranged in the vertical direction is provided on the AGV cart 1, and a wedge-shaped cushion block 20 is fixedly connected to the end of its piston rod. The cushion block 20 is connected to the bottom side of the dust suction cylinder 3 through a universal ball hinge.

[0056] In this embodiment, the telescopic movement of the electric telescopic rod 19 will drive its telescopic end to drive the cushion block 20 fixedly connected thereto to move up and down. Since the cushion block 20 is connected to the dust suction cylinder 3 through a universal ball hinge, the dust suction cylinder 3 can not only adjust its angle. This design allows the dust suction cylinder 3 to flexibly adjust its inclination angle within a certain height range according to actual needs, so as to ensure the best dust suction effect under various construction conditions.

[0057] In a further preferred embodiment of the present invention, as Figure 9 shown, a primary filter layer 21, an activated carbon fiber layer 22, and a HEPA filter paper layer 23 are sequentially arranged in the filter box 18 in the gas flow direction. An exhaust port 24 is opened on one side of the filter box 18 adjacent to the HEPA filter paper layer 23.

[0058] In this embodiment, the gas after the water washing treatment first passes through the primary filter layer 21. The main function of this layer is to intercept and remove large particulate dust and impurities in the air. Subsequently, the gas continues to flow and enters the activated carbon fiber layer 22. The activated carbon fiber layer 22 is used to remove harmful gases and odors in the air. In this layer, harmful gas molecules and odor molecules are effectively adsorbed on the fiber surface, thereby further purifying the air.

[0059] Immediately afterwards, the gas reaches the HEPA filter paper layer 23. The HEPA filter paper layer 23 can capture tiny particulate matters in the air, ensuring the final purification of the air before it leaves the filter box 18. After passing through these three layers of filtration, the gas is discharged from the filter box 18 with extremely high cleanliness.

[0060] In a further preferred embodiment of the present invention, as Figures 1-3 shown, a universal joint bracket 25 is provided on the top side of the dust collection bin 7, and a 3D lidar 26 is provided on the universal joint bracket 25.

[0061] In this embodiment, due to the support of the universal joint bracket 25, the 3D lidar 26 can freely rotate and adjust the angle within a certain range, thereby ensuring comprehensive and accurate scanning data can be obtained under any construction conditions. This design not only improves the environmental perception ability of the equipment, but also enhances its adaptability and safety in complex construction environments.

[0062] In a further preferred embodiment of the present invention, as Figure 2 shown, a detection mechanism is provided outside the dust collection bin 7. The detection mechanism includes a dust sensor group 27 and a PLC controller 28. The PLC controller 28 is electrically connected to the dust collection mechanism, the electric telescopic rod 19 and the dust sensor group 27.

[0063] In this embodiment, the dust sensor group 27 can real-time monitor the dust concentration in the dust collection bin 7 and its surrounding environment. Once the dust concentration exceeds the preset safety threshold, the dust sensor group 27 will immediately send an alarm signal to the PLC controller 28. After receiving this signal, the PLC controller 28 (S7-1200 CPU) will quickly analyze and make a response. It will first adjust the working state of the dust collection mechanism according to the specific situation of the dust concentration, such as increasing the suction force of the suction cylinder 3 or extending the spraying cycle of the dust removal filter bag 11, to more effectively remove the dust in the air.

[0064] At the same time, the PLC controller 28 will also send an instruction to the electric telescopic rod 19 through the electrical connection to adjust its telescopic length, thereby changing the height and angle of the suction cylinder 3 to ensure the maximization of the dust suction effect. This dynamic adjustment not only improves the dust removal efficiency of the equipment, but also enhances its adaptability in different construction environments.

[0065] In a further preferred embodiment of the present invention, as Figure 2 shown, the dust sensor group 27 includes a laser scattering sensor, an infrared optoelectronic sensor, and an electrostatic charge sensor.

[0066] In this embodiment, the laser scattering sensor (LaserScout LS200) measures the concentration of dust particles in the air by emitting a laser beam and receiving its scattered light. Its high precision and fast response enable it to capture subtle changes in dust concentration in real time;

[0067] The infrared optoelectronic sensor (IRL-6240) detects the presence of dust by using the principle of absorption and reflection of infrared light. When dust particles block the infrared light, the sensor emits a signal, thereby realizing the indirect monitoring of dust;

[0068] The electrostatic charge sensor (ESD-501) focuses on detecting charged dust particles in the air. By measuring the charge quantity and distribution of these particles, the nature and concentration of dust can be further understood.

[0069] In a further preferred embodiment of the present invention, as Figure 5 shown, sealing doors 29 are respectively hingedly fitted outside the dust removal chamber 9 and the water washing chamber 10, and a transparent viewing window 30 is provided on the sealing door 29 corresponding to the dust removal chamber 9.

[0070] In this embodiment, by providing the sealing doors 29, not only the airtightness of the chamber is ensured, which is convenient for maintenance and cleaning, but also the safety and operation convenience of the equipment are enhanced. The transparent viewing window 30 allows the operator to directly observe the working state inside the dust removal chamber 9 without opening the sealing door 29, including the cleaning degree of the dust removal filter bag 11, the blowing effect of the blowing pipe 12, etc. This design not only improves the operability of the equipment but also effectively avoids the problem of dust leakage caused by frequent opening of the sealing door 29, maintaining the cleanliness of the working environment.

[0071] In a further preferred embodiment of the present invention, as Figure 9 shown, a conical ash hopper 31 is provided at the bottom of the dust removal chamber 9.

[0072] In this embodiment, the adoption of the conical ash hopper 31 enables the dust collected during the dust removal process to slide smoothly and be centrally stored. Its conical structure helps to reduce the retention and accumulation of dust in the ash hopper 31, thereby avoiding the problems of secondary dust flying and equipment blockage.

[0073] Working principle: The present invention includes an AGV cart 1 and a dust collection mechanism integrated above it. The AGV cart 1, relying on its autonomous movement ability, can flexibly shuttle between different construction positions in the tunnel; the dust collection mechanism integrates multiple functions such as dust suction, dust removal, and water washing to ensure comprehensive treatment of dust;

[0074] The dust collection mechanism includes a dust suction cylinder 3, which is rotatably installed between two symmetrically arranged mounting plates 2 through bearings. The telescopic movement of the electric telescopic rod 19 drives the cushion block 20 fixedly connected thereto to move up and down. The cushion block 20 is connected to the dust suction cylinder 3 through a universal ball hinge, enabling the dust suction cylinder 3 to flexibly adjust its tilt angle while maintaining a certain height range to adapt to the best dust suction effect under various construction conditions.

[0075] Outside the dust collection bin 7, a dust sensor group 27 composed of a laser scattering sensor, an infrared optoelectronic sensor, and a static charge sensor continuously monitors the dust concentration. Once the dust concentration exceeds the preset safety threshold, the sensor group immediately sends an alarm signal to the PLC controller 28. The PLC controller 28 quickly analyzes and responds, adjusts the working state of the dust collection mechanism according to the specific situation of the dust concentration, such as increasing the suction force of the dust suction cylinder 3 or extending the blowing cycle of the dust removal filter bag 11, and sends an instruction to the electric telescopic rod 19 through electrical connection to adjust its telescopic length to change the height and angle of the dust suction cylinder 3, ensuring the maximization of the dust suction effect.

[0076] When the fan 6 is started, the dust suction cylinder 3 sucks in the dust-containing air through the negative pressure effect. The open surface of the dust suction cylinder 3 faces the dust source directly. Its stainless steel filter screen 4 effectively blocks large impurities while allowing the dust-containing air to pass through. These airs are sent to the adsorption end of the fan 6 through the dust guide pipe 5 and are transported to the lower area of the dust collection bin 7. Inside the dust collection bin 7, it is divided into a dust removal chamber 9 and a water washing chamber 10 by a vertical plate 8. In the dust removal chamber 9, at least two groups of parallel dust removal filter bags 11 efficiently filter the dust in the air, and the design of the conical ash hopper 31 ensures the smooth sliding and centralized storage of the dust, avoiding the secondary flying of the dust and equipment blockage.

[0077] To maintain the filtration efficiency of the dust removal filter bag 11, the blowing pipe 12 regularly sprays compressed air into the filter bag, which is realized by connecting the compressed air bag 15 through the electromagnetic pulse valve 14. When the pulse valve is opened, the compressed air is instantaneously released, causing the dust on the filter bag to fall off and restoring its filtering ability. The dust-containing air after preliminary filtration enters the water washing chamber 10 through the water washing pipe 16 and is further dust-removed by mixing with the water washing liquid. The water inlet of the water washing pipe 16 in the water washing chamber 10 is located at one-third of the chamber height to ensure sufficient contact between the water washing liquid and the dust.

[0078] The gas after water washing treatment removes large particle dust and impurities through the primary filter layer 21, then enters the activated carbon fiber layer 22 to remove harmful gases and odors, and finally reaches the HEPA filter paper layer 23 to capture micro-particles, ensuring the final purification of the air before leaving the filter box 18. After passing through these three layers of filtration, the gas is discharged from the filter box 18 with extremely high cleanliness.

[0079] Finally, the air that has undergone dust removal and water washing processes is discharged from the dust collection bin 7 through the air guide port 17 and is secondarily filtered in the outer filter box 18, which not only improves the dust removal efficiency of the device but also enhances its adaptability and safety in complex construction environments.

[0080] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the described action sequences, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0081] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units can be carried out in other ways during actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or communication connections between each other can be through some interfaces. The indirect couplings or communication connections between devices or units can be in the form of telecommunications or other forms.

[0082] The units described as separate components above may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A self-mobile dust collection and ventilation device for tunnel construction, characterized in that, Including: An AGV cart and a dust collection mechanism above it; Wherein the dust collection mechanism includes: A set of mounting plates symmetrically arranged on the AGV cart; A dust suction cylinder rotatably fitted between two mounting plates through bearings, one end of which is an open dust suction surface provided with a stainless steel filter screen, and the other end is connected to the adsorption end of a blower through a dust guide pipe, and the exhaust end of the blower is connected to the lower region of a dust collection bin through a dust guide pipe; The dust collection bin is separated into a dust removal chamber and a water washing chamber by a vertical plate, and the water washing chamber is filled with a water washing liquid; At least two groups of parallel arranged dust removal filter bags are arranged in the dust removal chamber; A blowpipe is arranged in the upper region of the dust removal chamber, nozzles opposite to the dust removal filter bags are evenly distributed on the blowpipe, the blowpipe extends to the outside of the dust collection bin and is connected to a compressed air bag through an electromagnetic pulse valve; A dust guide port is communicated between the dust removal chamber and the water washing chamber, a water washing pipe is communicated with the dust guide port, and the water inlet of the water washing pipe is located at one-third of the height of the water washing chamber; An air guide port is opened on the outer side of the water washing chamber away from the dust removal chamber, and a filter box is communicated with the outside of the air guide port.

2. The self-mobile dust collection and ventilation equipment for tunnel construction according to claim 1, characterized in that An electric telescopic rod arranged in the vertical direction is arranged on the AGV cart, and the end of its piston rod is fixedly connected with a wedge-shaped pad, and the pad is connected with the bottom side of the dust suction cylinder through a universal ball hinge.

3. The self-mobile dust collection and ventilation equipment for tunnel construction according to claim 1, characterized in that, A primary filter layer, an activated carbon fiber layer and a HEPA filter paper layer are sequentially arranged in the filter box according to the gas flow direction, and an exhaust port is opened on one side of the filter box adjacent to the HEPA filter paper layer.

4. The self - mobile dust - collecting and ventilation equipment for tunnel construction according to claim 1, characterized in that, A universal joint bracket is arranged on the top side of the dust collection bin, and a 3D lidar is arranged on the universal joint bracket.

5. The self - mobile dust - collecting and ventilation equipment for tunnel construction according to claim 4, wherein, A detection mechanism is arranged on the outside of the dust collection bin, the detection mechanism includes a dust sensor group and a PLC controller, and the PLC controller is electrically connected with the dust collection mechanism, the electric telescopic rod and the dust sensor group.

6. The self - mobile dust collection and ventilation equipment for tunnel construction according to claim 5, characterized in that, The dust sensor group includes a laser scattering sensor, an infrared photoelectric sensor and a static charge sensor.

7. The self-mobile dust collection and ventilation equipment for tunnel construction according to claim 1, characterized in that, Sealing doors are respectively hinged and fitted on the outer sides of the dust removal chamber and the water washing chamber, and a transparent window is arranged on the sealing door corresponding to the dust removal chamber.

8. The self-mobile dust collection and ventilation equipment for tunnel construction according to claim 7, characterized in that, A conical ash hopper is arranged at the bottom of the dust removal chamber.

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