Road engineering dust filtering device

Abstract

The invention belongs to the technical field of dust filtering, and particularly relates to a road engineering dust filtering device, a dust collection assembly rapidly sucks dust in a construction environment into an air inlet cylinder, when the dust moves in the air inlet cylinder, the dust firstly impacts a filter plate, a water spray pipe sprays water flow to the surface of the filter plate, the dust adsorption capacity of the filter plate is greatly enhanced, and the dust is filtered through a filter screen; continuously flowing water flow can wash down dust adsorbed on the filter plates, the situation that the ventilation performance and the adsorption effect of the filter plates are reduced due to excessive dust accumulation is effectively avoided, the device is provided with the two filter plates, the second through holes in the two filter plates are distributed in a staggered mode, the contact area and the adsorption path of the dust and the filter plates are increased, and the adsorption efficiency is improved. The dust filtering effect is improved, water flow washed down from the filter plate can be collected through the recycling assembly and conveyed to the water tank, water in the water tank circularly flows back to the water spraying pipe, spraying operation on the filter plate is achieved, a complete water circulation system is formed, and due to the design, consumption of water resources is greatly reduced, waste is avoided, and the environment-friendly concept is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of dust filtration, and particularly relates to a dust filtration device for road engineering. Background Art

[0002] Road engineering, as a general term for the planning, design, construction, maintenance, and management work carried out on roads, not only produces the engineering entity of the road, but also has distinct characteristics in terms of technology, economy, and management, similar to other civil engineering categories. During the road construction process, a large amount of soil dust is inevitably generated. These dusts not only bring many inconveniences to road construction operations, but also pollute the surrounding environment and threaten the physical health of construction workers.

[0003] Currently, common dust treatment technologies mainly include spray dust removal and electrostatic dust removal. The former inhales the dust-containing gas into the dust removal pipe and uses the spray method to achieve dust removal; the latter removes dust by means of the electrostatic principle. However, the spray dust removal technology consumes a large amount of water resources, resulting in waste; electrostatic dust removal not only has complex equipment, but also has selectivity for the types of dust. These limitations make it difficult to achieve an ideal dust removal effect in the actual application of the existing technology.

[0004] Based on the above background, in order to effectively solve the dust pollution problem in road construction, it is urgent to develop a dust filtration device for road engineering to overcome the deficiencies of the existing technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a dust filtration device for road engineering to solve the above problems.

[0006] To achieve the above purpose, the present invention provides the following solution:

[0007] A dust filtration device for road engineering includes a bearing part, an air inlet cylinder is arranged above the bearing part, a dust removal component and a dust suction component are arranged in the air inlet cylinder, the dust removal component is close to the inlet of the air inlet cylinder, the bottom end of the air inlet cylinder is communicated with a recovery component, the recovery component is arranged corresponding to the dust removal component up and down, the recovery component is communicated with a water tank, the connection part between the recovery component and the water tank is located in the upper part of the water tank, and the water tank is fixedly installed on the bearing part;

[0008] The dust removal component includes two filter plates coaxially and fixedly connected in the air inlet cylinder, there is a gap between the two filter plates, a plurality of second through holes are opened on the filter plates, and the second through holes on the two filter plates are arranged staggeredly;

[0009] On one side of the filter plate close to the inlet of the air inlet cylinder, a water spray pipe is provided. The outlet end of the water spray pipe faces the filter plate. The water spray pipe is communicated with a water delivery pump located in the water tank through a water delivery pipe. The water delivery pump is located at the lower part of the water tank.

[0010] In the dust filtering device for road engineering of the present invention, the recycling component includes a water collecting tank. The water collecting tank is fixedly connected to the bottom end of the air inlet cylinder and is communicated with the inner cavity of the air inlet cylinder. Both of the filter plates are located above the water collecting tank. The tail end of the water collecting tank is flush with the filter plate close to the outlet of the air inlet cylinder. A micro water pump is arranged in the water collecting tank. The outlet end of the micro water pump is communicated with the water tank through a return water pipe. The outlet end of the return water pipe is located at the upper part of the water tank.

[0011] In the dust filtering device for road engineering of the present invention, horizontal sliding rails are fixedly connected to the opposite inner side walls of the water tank. The two sliding rails are on the same horizontal plane. The sliding rails are located in the middle of the water tank. A dust collecting hopper is slidably connected to the top surfaces of the two sliding rails. The dust collecting hopper is in contact with the inner side wall of the water tank. A through groove is formed in one side of the water tank. An installation plate is fixedly connected to the through groove by bolts. A handle is fixedly connected to the outer side wall of the installation plate located outside the water tank. The installation plate is fixedly connected to the dust collecting hopper. The through groove is adapted to the dust collecting hopper;

[0012] A plurality of first through holes are formed in the bottom wall of the dust collecting hopper. The plurality of first through holes are distributed in an array. A filter screen is laid on the inner bottom wall of the dust collecting hopper.

[0013] In the dust filtering device for road engineering of the present invention, the dust suction component includes a first bracket fixedly connected in the air inlet cylinder. A driving motor is fixedly connected to the first bracket. A rotating shaft is coaxially fixedly connected to the output shaft of the driving motor. The rotating shaft is rotatably connected in the air inlet cylinder through a second bracket. The rotating shaft is coaxially arranged with the air inlet cylinder. A first impeller is coaxially fixedly connected to one end of the rotating shaft away from the driving motor.

[0014] In the dust filtering device for road engineering of the present invention, a fixing ring is fixedly connected to the first bracket. The driving motor is fixedly connected to the fixing ring. The rotating shaft coaxially passes through the fixing ring. A first bevel gear is coaxially fixedly connected to the rotating shaft. The first bevel gear meshes with two second bevel gears. The two second bevel gears are both rotatably connected to the inner side wall of the fixing ring and are coaxially arranged. The two second bevel gears both mesh with a third bevel gear. The third bevel gear is coaxially fixedly connected to the outer side wall of a sleeve. A second impeller is coaxially fixedly connected to the outer side wall of the sleeve. The blade inclination direction of the second impeller is opposite to that of the first impeller. The second impeller is located between the first bracket and the second bracket.

[0015] In the dust filtering device for road engineering of the present invention, the bearing part includes a bearing platform which is horizontally arranged. Rollers are installed at the four corners of the bottom surface of the bearing platform. A handle is fixedly connected to one end of the bearing platform. The water tank is fixedly installed on the top surface of the bearing platform.

[0016] In the dust filtering device for road engineering of the present invention, a vertical shaft is arranged vertically on the top surface of the bearing platform. The top end of the vertical shaft is fixedly connected with a U-shaped frame with its opening facing upward. The air inlet cylinder is arranged inside the U-shaped frame.

[0017] In the dust filtering device for road engineering of the present invention, two short shafts are fixedly connected to the outer side wall of the air inlet cylinder. The two short shafts are coaxially arranged and are respectively rotatably connected to the two ends of the U-shaped frame. One of the short shafts passes through the U-shaped frame and is coaxially fixedly connected to the output shaft of a second adjustment motor which is fixedly connected to the U-shaped frame.

[0018] In the dust filtering device for road engineering of the present invention, the bottom end of the vertical shaft is rotatably connected to the top surface of the bearing platform. A worm gear is coaxially fixedly connected to the vertical shaft. The worm gear meshes with a worm which is rotatably connected to the top surface of the bearing platform through two shaft seats. One end of the worm passes through the shaft seat and is coaxially fixedly connected to the output shaft of a first adjustment motor which is fixedly connected to the top surface of the bearing platform.

[0019] In the dust filtering device for road engineering of the present invention, both the water delivery pipe and the water return pipe are telescopic hoses.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] The dust suction component can generate a strong suction force to quickly suck the dust in the construction environment into the air inlet cylinder. When the dust moves in the air inlet cylinder, it first impacts the filter plate. At the same time, the water spray pipe sprays water flow onto the surface of the filter plate, greatly enhancing the adsorption ability of the filter plate to the dust. In addition, the continuously flowing water can wash down the dust adsorbed on the filter plate, effectively preventing the ventilation performance and adsorption effect from decreasing due to excessive dust accumulation on the filter plate. The device is provided with two filter plates, and the second through holes on the two filter plates are staggeredly distributed, greatly increasing the contact area and adsorption path between the dust and the filter plates, and further improving the filtering effect on the dust.

[0022] The water flow washed down from the filter plate will be collected by the recycling component and conveyed to the water tank. The water in the water tank flows back to the water spray pipe again through the circulation system to realize the spraying operation on the filter plate, forming a complete water circulation system. This design greatly reduces the consumption of water resources, avoids waste, and conforms to the environmental protection concept. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0024] Figure 1 Is the overall schematic diagram of the present invention;

[0025] Figure 2 Is the structural schematic diagram of the present invention;

[0026] Figure 3 Is Figure 2 The partial enlarged view at A in;

[0027] Figure 4 Is Figure 2 The partial enlarged view at B in;

[0028] Figure 5 Is Figure 2 The partial enlarged view at C in;

[0029] Wherein, 1, the bearing platform; 2, the roller; 3, the grip; 4, the breathable cover; 5, the shaft seat; 6, the worm; 8, the worm wheel; 9, the first adjustment motor; 10, the vertical shaft; 11, the U-shaped frame; 12, the water collecting tank; 13, the air inlet tube; 14, the filter plate; 15, the water spraying pipe; 16, the micro water pump; 17, the first bracket; 18, the second bracket; 19, the first impeller; 20, the second impeller; 21, the drive motor; 22, the water tank; 23, the water level gauge; 24, the water transfer pump; 25, the water transfer pipe; 26, the return pipe; 27, the dust collecting hopper; 28, the second adjustment motor; 29, the fixing ring; 30, the first bevel gear; 31, the second bevel gear; 32, the third bevel gear; 33, the rotating shaft; 34, the sleeve; 35, the slide rail; 36, the first through hole; 37, the filter screen; 38, the mounting plate; 39, the handle; 1401, the second through hole; 1501, the flow channel; 1502, the water spraying hole. Specific embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, 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.

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0032] In the construction and operation of road engineering, the negative impacts brought by dust pollution cannot be underestimated. It not only reduces air quality, threatens the health of construction workers and surrounding residents, but may also cause long-term damage to the surrounding ecological environment. Therefore, developing efficient, economical and environmentally friendly dust filtration devices has become an urgent task in the field of road engineering.

[0033] In the existing technology, there are various dust removal devices, specifically as follows: Filter type dust removal devices mainly include bag filters and cartridge filters, etc. The filtration process is divided into two stages. In the initial stage, the dust-containing gas passes through the clean filter media, and the filtration mainly relies on the filter media fibers. As dust is continuously intercepted, a dust layer gradually forms on the surface and inside of the filter media. In the subsequent stage, the filtration mainly relies on this dust layer. Taking the bag filter as an example, the dust-containing gas enters the filter bag from the bag mouth, the dust is intercepted by the filter bag, and the purified gas is discharged from the bag body. At the road construction site, the bag filter is the most widely used due to its mature technology and wide applicability. Its advantages are that it has excellent interception ability for fine dust, can make the discharged gas reach a high cleanliness level, can handle dry or wet dust of different properties, is composed of filter bags or cartridges, support structures and dust cleaning devices, etc., and is relatively convenient for installation and maintenance, with a simple structure. However, the filtration efficiency is greatly affected by the selection of filter media and the characteristics of dust. As dust accumulates, the resistance of the filter media increases, and it needs to be maintained and replaced regularly;

[0034] Electrostatic dust removal devices can be divided into plate electrostatic precipitators and tubular electrostatic precipitators according to the differences in electrode forms and structures. They are commonly used in large road tunnel ventilation systems. By applying high voltage to ionize the gas, corona discharge is generated. Dust is charged during this process. Under the action of the electric field force, the charged dust moves towards the electrode and deposits on the electrode, thereby realizing the separation of suspended particles in the gas. Its advantages are high dust removal efficiency: strong ability to capture fine dust, and the dust removal efficiency can reach more than 90%; good energy saving: low energy consumption during operation, saving electric energy; good stability: long service life of the equipment, no mechanical movement and wear, and can realize automatic control and remote monitoring. However, its investment cost is high, there are requirements for the dust specific resistance, and the maintenance technical threshold is high;

[0035] The mist forest equipment (high-pressure micro-mist dust suppression system) can be divided into fixed mist forest equipment and mobile mist forest equipment according to different application scenarios and control methods. It is commonly seen beside urban main roads. Through high pressure, water is atomized into tiny water droplet particles with a diameter of 1-10 microns and sprayed into the air. These tiny water droplet particles have a large surface area and strong adsorption ability, can quickly combine with dust particles, increase their weight and then settle to the ground. At the same time, it increases the local air humidity, reduces dust flying. Its advantages are significant dust suppression effect: it can quickly reduce the road dust concentration; energy-saving and environmental protection: small water consumption, avoiding water resource waste and the hidden danger of road slipperiness; low operating noise; high degree of intelligence: it can automatically adjust the spray volume according to environmental parameters, and some can also be linked with the traffic monitoring system. However, the cost of mist forest equipment is relatively high, and the requirements for water quality are strict. In the face of large-area and high-concentration dust pollution, multiple devices need to cooperate;

[0036] The intelligent spray dust suppression system can be divided into wired and wireless intelligent spray dust suppression systems according to different monitoring and control technologies. It is commonly used in large-scale road construction sites. Using particulate matter sensors to monitor the dust concentration in real time, and combining environmental parameters such as wind speed, wind direction, and humidity, it accurately controls the spray dust suppression system through intelligent valves to achieve automatic and intelligent dust control. Its advantages are accurate monitoring and control: real-time collection of PM 2.5 、PM 10 、TSP data, accurately controlling spray dust suppression; dynamic optimization: combining multiple environmental parameters, dynamically adjusting the spray intensity to improve the dust suppression effect; remote management: supporting remote data monitoring and intelligent control, convenient management. However, the intelligent spray dust suppression system relies on electricity and electronic devices. Equipment failures will affect the dust suppression effect, and the initial investment and maintenance costs are high;

[0037] The environmentally friendly hydrogel dust suppressant spraying device is mainly a dust suppressant spraying equipment carried on a sprinkler truck, which plays a role in the earthwork operation stage of road construction. After pouring the environmentally friendly hydrogel dust suppressant and dyeing agent into the sprinkler truck, it sprays the surrounding roadbed excavation surface. The dust suppressant coagulates or adheres small particulate matters together through the adhesion effect of the hydrogel network and forms a protective film on the surface of the material, thus suppressing dust. Its advantages are green and environmental protection: the dust suppressant has the characteristics of being green, efficient, and biodegradable, and has no adverse impact on the ecological environment; low cost: the economic cost is better than that of green nets and grass planting, reducing the dust control cost; effectively suppressing dust: it can suppress "secondary" and "multiple" dust. However, the environmentally friendly hydrogel dust suppressant spraying device needs to rely on the sprinkler truck for operation, increasing the equipment use and maintenance costs, the action time of the dust suppressant is limited, and its adaptability to special dust environments is insufficient.

[0038] A dust filtering device for road engineering, including a dust collection mechanism: The dust collection mechanism is installed inside the filtering vehicle and is closely connected to the brush. When the device is operating, it can drive the brush to swing regularly back and forth, sweeping and concentrating the dust on the ground or working area to the bottom of the filtering vehicle, preparing for subsequent treatment. The power source of the dust collection mechanism is an automatic power component, which is connected to the reciprocating swing component. After the power component is started, the generated power drives the reciprocating swing component to move back and forth in the horizontal direction, and the reciprocating swing component drives the connected brush to swing back and forth at a specific frequency and amplitude, efficiently sweeping and collecting the dust;

[0039] Specifically, the reciprocating swing component is composed of a frame, gears, racks, vertical pipes, horizontal pipes, etc. The frame is slidably connected to the inner end face of the filtering vehicle through a chute. This design keeps the frame stable during movement. On the inner end face of the filtering vehicle, two gears are rotatably connected through supports. These two gears are located on both sides of the frame respectively. The two ends of the frame are fixedly connected with racks. The tooth surfaces of the two racks are arranged oppositely and are respectively engaged with the two gears. When the frame moves in the horizontal direction, the racks drive the gears to rotate, realizing efficient force transmission. The central axis of each gear is fixedly connected with a vertical pipe. The vertical pipe penetrates the inner end face of the filtering vehicle, and its lower end is communicated with the horizontal pipe. Multiple brushes are connected to the horizontal pipe. The rotation of the gear is transmitted to the horizontal pipe through the vertical pipe, and then drives the brush to swing back and forth to sweep the dust;

[0040] Spraying component: The spraying component is connected to the dust collection mechanism. While the dust collection mechanism is working, the spraying component is started synchronously to spray and precipitate the dust during the cleaning process, effectively avoiding the generation of dust during cleaning, preventing the dust from floating into the air and causing secondary pollution. The water tank of the spraying component is placed inside the filtering vehicle. A water pump is provided in the water tank. The water outlet of the water pump is connected to the vertical pipe through a pipeline. When the water pump is started, the water in the water tank is transported to the vertical pipe through the pipeline and then flows into the horizontal pipe. Multiple water outlet holes are provided on the side wall of the horizontal pipe, and water sprays out from these water outlet holes to form a fine water mist, which fully contacts the dust during the cleaning process, making the dust particles wet and heavier, and quickly settling, greatly reducing the generation of dust;

[0041] Filter mechanism: The filter mechanism is also installed inside the filter vehicle and is responsible for adsorbing the dust swept to the bottom of the filter vehicle into the filter vehicle for centralized treatment. The filter mechanism includes key components such as a sleeve, a spiral fan blade, a dust collection chamber, and a transmission shaft. The sleeve is connected to the inner end face of the dust collection chamber. The spiral fan blade is installed inside the sleeve, and its central axis is rotatably connected to the inner end face of the dust collection chamber. The side end face of the dust collection chamber is rotatably connected to the transmission shaft. One end of the transmission shaft is connected to the central axis of the spiral fan blade through a bevel gear transmission pair, and the other end is connected to the power component through a belt transmission pair. When the power component operates, the power is transmitted to the transmission shaft through the belt transmission pair, and the transmission shaft then drives the spiral fan blade to rotate through the bevel gear transmission pair. The rotation of the spiral fan blade generates a strong suction force, sucking the dust at the bottom of the filter vehicle into the sleeve and then transporting it to the dust collection chamber, realizing the efficient collection and centralized treatment of dust;

[0042] Power component: The power component, as the power source of the entire device, plays a decisive role in the stable operation of the device. The power component includes a transmission motor. The output shaft of the transmission motor is connected to an L-shaped rod. One end of the L-shaped rod penetrates through the frame and is slidably connected to it. After the transmission motor is started, the output shaft drives the L-shaped rod to rotate. During the rotation process of the L-shaped rod, it pushes the frame to make a reciprocating motion in the horizontal direction, thereby driving the reciprocating swing component of the dust collection mechanism and then driving the brush to perform the dust cleaning work. At the same time, the power component transmits the power to the transmission shaft of the filter mechanism through a belt transmission pair, driving the spiral fan blade to rotate and completing the adsorption and collection work of the dust;

[0043] Its advantages are as follows. In the process of traditional device dust cleaning, dust control is often ignored, resulting in a large amount of dust being generated during the cleaning process, causing serious harm to the environment and human health. However, this device, through the coordinated work of the dust collection mechanism and the spraying component, sprays water to reduce dust while cleaning the dust, effectively solving the dust problem. In addition, the dust collection and treatment efficiency of traditional devices is relatively low and difficult to meet the needs of large-scale road construction. The filter mechanism of this device adopts a spiral fan blade design, combined with a reasonable power transmission system, greatly improving the adsorption and collection efficiency of dust, being able to quickly and efficiently collect dust centrally for subsequent treatment. Moreover, the connection and transmission design between the various components of this device is reasonable, the structure is compact, which not only improves the stability and reliability of the device but also reduces the maintenance cost and difficulty, having good application prospects;

[0044] This road engineering dust filtration device forms a set of efficient and environmentally friendly dust treatment systems through the organic combination of multiple functional modules such as dust collection, spraying, and filtration. During the road engineering construction process, this device can effectively collect and treat dust, reduce dust pollution, protect the health of construction workers and the surrounding environment, and provide strong support for the green construction of road engineering.

[0045] Refer to Figures 1 to 5, the present invention discloses a dust filtering device for road engineering, including a bearing part. An air inlet cylinder 13 is arranged above the bearing part. A dust removal component and a dust suction component are arranged in the air inlet cylinder 13. The dust removal component is close to the inlet of the air inlet cylinder 13. The bottom end of the air inlet cylinder 13 is communicated with a recovery component. The recovery component is arranged corresponding to the dust removal component up and down. The recovery component is communicated with a water tank 22. The connection part between the recovery component and the water tank 22 is located in the upper part of the water tank 22. The water tank 22 is fixedly installed on the bearing part;

[0046] The dust removal component includes two filter plates 14 coaxially and fixedly connected in the air inlet cylinder 13. There is a gap between the two filter plates 14. A plurality of second through holes 1401 are opened on the filter plates 14. The second through holes 1401 on the two filter plates 14 are arranged staggeredly;

[0047] A water spray pipe 15 is arranged on the side of the filter plate 14 close to the inlet of the air inlet cylinder 13. The outlet end of the water spray pipe 15 faces the filter plate 14. The water spray pipe 15 is communicated with a water pump 24 located in the water tank 22 through a water delivery pipe 25. The water pump 24 is located in the lower part of the water tank 22.

[0048] A flow channel 1501 is opened in the water spray pipe 15. The flow channel 1501 is arranged along the length direction of the water spray pipe 15. A plurality of water spray holes 1502 are opened on the side of the water spray pipe 15 facing the filter plate 14. The plurality of water spray holes 1502 are arranged at equal intervals along the length direction of the water spray pipe 15. The water spray holes 1502 are communicated with the flow channel 1501.

[0049] In a feasible solution, the recovery component includes a water collecting tank 12. The water collecting tank 12 is fixedly connected to the bottom end of the air inlet cylinder 13 and is communicated with the inner cavity of the air inlet cylinder 13. Both filter plates 14 are located above the water collecting tank 12. The tail end of the water collecting tank 12 is flush with the filter plate 14 close to the outlet of the air inlet cylinder 13. A micro water pump 16 is arranged in the water collecting tank 12. The outlet end of the micro water pump 16 is communicated with the water tank 22 through a return water pipe 26. The outlet end of the return water pipe 26 is located in the upper part of the water tank 22.

[0050] In a feasible solution, horizontal slide rails 35 are fixedly connected to the opposite inner side walls of the water tank 22. The two slide rails 35 are on the same horizontal plane. The slide rails 35 are located in the middle of the water tank 22. A dust collecting hopper 27 is slidably connected to the top surfaces of the two slide rails 35. The dust collecting hopper 27 is in contact with the inner side wall of the water tank 22. A through groove is opened on one side of the water tank 22. An installation plate 38 is fixedly connected through bolts at the through groove. A handle 39 is fixedly connected to the outer side wall of the installation plate 38 located outside the water tank 22. The installation plate 38 is fixedly connected to the dust collecting hopper 27. The through groove is adapted to the dust collecting hopper 27;

[0051] A water level gauge 23 is arranged in the water tank 22 for monitoring the water level height in the water tank 22.

[0052] A plurality of first through holes 36 are formed in the bottom wall of the dust collection hopper 27, and the plurality of first through holes 36 are distributed in an array. A filter screen 37 is laid on the inner bottom wall of the dust collection hopper 27.

[0053] In a feasible solution, the dust suction assembly includes a first bracket 17 fixedly connected inside the air inlet cylinder 13. A drive motor 21 is fixedly connected to the first bracket 17. A rotating shaft 33 is coaxially fixedly connected to the output shaft of the drive motor 21. The rotating shaft 33 is rotatably connected inside the air inlet cylinder 13 through a second bracket 18. The rotating shaft 33 is coaxially arranged with the air inlet cylinder 13. One end of the rotating shaft 33 away from the drive motor 21 is coaxially fixedly connected with a first impeller 19.

[0054] In a feasible solution, a fixing ring 29 is fixedly connected to the first bracket 17. The drive motor 21 is fixedly connected to the fixing ring 29. The rotating shaft 33 is coaxially arranged inside the fixing ring 29. A first bevel gear 30 is coaxially fixedly connected to the rotating shaft 33. The first bevel gear 30 meshes with two second bevel gears 31. The two second bevel gears 31 are both rotatably connected to the inner side wall of the fixing ring 29 and are coaxially arranged. The two second bevel gears 31 both mesh with a third bevel gear 32. The third bevel gear 32 is coaxially fixedly connected to the outer side wall of a sleeve 34. A second impeller 20 is coaxially fixedly connected to the outer side wall of the sleeve 34. The blade inclination direction of the second impeller 20 is opposite to that of the first impeller 19. The second impeller 20 is located between the first bracket 17 and the second bracket 18.

[0055] In a feasible solution, the bearing part includes a bearing platform 1. The bearing platform 1 is horizontally arranged. Rollers 2 are installed at the four corners of the bottom surface of the bearing platform 1. A handle 3 is fixedly connected to one end of the bearing platform 1. The water tank 22 is fixedly installed on the top surface of the bearing platform 1.

[0056] In a feasible solution, a vertical shaft 10 is vertically arranged on the top surface of the bearing platform 1. The top end of the vertical shaft 10 is fixedly connected with a U-shaped frame 11. The opening of the U-shaped frame 11 faces upward. The air inlet cylinder 13 is arranged inside the U-shaped frame 11.

[0057] In a feasible solution, two short shafts are fixedly connected to the outer side wall of the air inlet cylinder 13. The two short shafts are coaxially arranged. The two short shafts are respectively rotatably connected to the two ends of the U-shaped frame 11. One of the short shafts passes through the U-shaped frame 11 and is coaxially fixedly connected with the output shaft of a second adjustment motor 28. The second adjustment motor 28 is fixedly connected to the U-shaped frame 11.

[0058] In a feasible solution, the bottom end of the vertical shaft 10 is rotatably connected to the top surface of the bearing platform 1. A worm gear 8 is coaxially fixedly connected to the vertical shaft 10. The worm gear 8 meshes with a worm 6. The worm 6 is rotatably connected to the top surface of the bearing platform 1 through two shaft seats 5. One end of the worm 6 passes through the shaft seat 5 and is coaxially fixedly connected with the output shaft of a first adjustment motor 9. The first adjustment motor 9 is fixedly connected to the top surface of the bearing platform 1.

[0059] A breathable shield 4 is fixedly connected to the top surface of the bearing platform 1, and the worm gear 8, the worm 6, and the first adjustment motor 9 are all located inside the breathable shield 4.

[0060] In a feasible solution, both the water delivery pipe 25 and the water return pipe 26 are telescopic hoses.

[0061] Specific working process:

[0062] Push the bearing platform 1 to a predetermined position through the handle 3. The roller 2 is a universal wheel with a self-locking function, and the bearing platform 1 is fixed through the roller 2;

[0063] Turn on the drive motor 21. The drive motor 21 drives the rotating shaft 33 to rotate, and then drives the first impeller 19 to rotate. At the same time, the rotating shaft 33 drives the first bevel gear 30 to rotate. The first bevel gear 30 drives the third bevel gear 32 to rotate through the second bevel gear 31, and then drives the sleeve 34 to rotate. The sleeve 34 drives the second impeller 20 to rotate. The rotation direction of the sleeve 34 is opposite to that of the rotating shaft 33, and the blade inclination directions of the first impeller 19 and the second impeller 20 are opposite, jointly playing a role in dust suction. The wind force is greater and the dust suction effect is better;

[0064] Dust enters the air inlet cylinder 13 along with the flowing air and hits the filter plate 14. The water spray pipe 15 sprays water flow on the surface of the filter plate 14 to form a water curtain on the side of the filter plate 14 facing the air inlet, greatly enhancing the dust adsorption ability of the filter plate 14. In addition, the continuously flowing water can wash down the dust adsorbed on the filter plate 14, effectively preventing the ventilation performance and adsorption effect from decreasing due to excessive dust accumulation on the filter plate 14. The device is provided with two filter plates 14, and the second through holes 1401 on the two filter plates 14 are staggered, greatly increasing the contact area and adsorption path between the dust and the filter plate 14, and further improving the dust filtering effect;

[0065] The flowing sewage enters the water collecting tank 12, and then enters the upper part of the water tank 22 under the action of the micro water pump 16, and then falls into the dust collecting hopper 27. At the same time, the water delivery pump 24 sends the water in the water tank 22 into the water spray pipe 15, making the lower part of the water tank 22 in a state of double pressure, pumping down the water in the dust collecting hopper 27. The dust stays in the dust collecting hopper 27 under the action of the filter screen 37. Remove the dust collecting hopper 27 at regular intervals and clean out the silt to avoid the filter screen 37 being blocked due to excessive silt;

[0066] The first adjustment motor 9 drives the worm 6 to rotate. The worm 6 drives the vertical shaft 10 to rotate through the worm gear 8 to adjust the horizontal angle of the air inlet cylinder 13. The second adjustment motor 28 drives the short shaft to rotate, and then adjusts the vertical angle of the air inlet cylinder 13.

[0067] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0068] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A dust filtering device for road engineering, characterized in that, It includes a bearing part, above which an air inlet cylinder (13) is provided. An air dust removal component and a dust suction component are arranged in the air inlet cylinder (13). The air dust removal component is close to the inlet of the air inlet cylinder (13). The bottom end of the air inlet cylinder (13) is communicated with a recovery component. The recovery component is arranged corresponding to the air dust removal component up and down. The recovery component is communicated with a water tank (22). The connection part between the recovery component and the water tank (22) is located in the upper part of the water tank (22). The water tank (22) is fixedly installed on the bearing part; The air dust removal component includes two filter plates (14) coaxially and fixedly connected in the air inlet cylinder (13). There is a gap between the two filter plates (14). A plurality of second through holes (1401) are formed in the filter plates (14). The second through holes (1401) on the two filter plates (14) are arranged staggeredly; A water spraying pipe (15) is arranged on one side of the filter plate (14) close to the inlet of the air inlet cylinder (13). The outlet end of the water spraying pipe (15) faces the filter plate (14). The water spraying pipe (15) is communicated with a water delivery pump (24) located in the water tank (22) through a water delivery pipe (25). The water delivery pump (24) is located in the lower part of the water tank (22).

2. The dust filtering device for road engineering according to claim 1, characterized in that, The recovery component includes a water collecting tank (12). The water collecting tank (12) is fixedly connected to the bottom end of the air inlet cylinder (13) and communicated with the inner cavity of the air inlet cylinder (13). The two filter plates (14) are both located above the water collecting tank (12). The tail end of the water collecting tank (12) is flush with the filter plate (14) close to the outlet of the air inlet cylinder (13). A micro water pump (16) is arranged in the water collecting tank (12). The outlet end of the micro water pump (16) is communicated with the water tank (22) through a return water pipe (26). The outlet end of the return water pipe (26) is located in the upper part of the water tank (22).

3. The dust filtration device for road engineering according to claim 1, characterized in that, Horizontal slide rails (35) are fixedly connected to the opposite inner side walls of the water tank (22). The two slide rails (35) are on the same horizontal plane. The slide rails (35) are located in the middle of the water tank (22). A dust collecting hopper (27) is slidably connected to the top surfaces of the two slide rails (35). The dust collecting hopper (27) is in contact with the inner side wall of the water tank (22). A through groove is formed on one side of the water tank (22). An installation plate (38) is fixedly connected at the through groove through bolts. A handle (39) is fixedly connected to the outer side wall of the installation plate (38) located outside the water tank (22). The installation plate (38) is fixedly connected to the dust collecting hopper (27). The through groove is adapted to the dust collecting hopper (27); A plurality of first through holes (36) are formed in the bottom wall of the dust collecting hopper (27). The plurality of first through holes (36) are distributed in an array. A filter screen (37) is laid on the inner bottom wall of the dust collecting hopper (27).

4. A dust filtration device for road engineering according to claim 1, characterized in that, The dust suction assembly includes a first bracket (17) fixedly connected inside the air inlet cylinder (13). A drive motor (21) is fixedly connected to the first bracket (17). A rotating shaft (33) is coaxially fixedly connected to the output shaft of the drive motor (21). The rotating shaft (33) is rotatably connected inside the air inlet cylinder (13) through a second bracket (18). The rotating shaft (33) is coaxially arranged with the air inlet cylinder (13). One end of the rotating shaft (33) away from the drive motor (21) is coaxially fixedly connected with a first impeller (19).

5. The dust filtering device for road engineering according to claim 4, wherein A fixing ring (29) is fixedly connected to the first bracket (17). The drive motor (21) is fixedly connected to the fixing ring (29). The rotating shaft (33) is coaxially arranged inside the fixing ring (29). A first bevel gear (30) is coaxially fixedly connected to the rotating shaft (33). The first bevel gear (30) meshes with two second bevel gears (31). Both of the two second bevel gears (31) are rotatably connected to the inner side wall of the fixing ring (29) and are coaxially arranged. Both of the two second bevel gears (31) mesh with a third bevel gear (32). The third bevel gear (32) is coaxially fixedly connected to the outer side wall of a sleeve (34). A second impeller (20) is coaxially fixedly connected to the outer side wall of the sleeve (34). The blade inclination direction of the second impeller (20) is opposite to that of the first impeller (19). The second impeller (20) is located between the first bracket (17) and the second bracket (18).

6. The dust filtration device for road engineering according to claim 1, characterized in that, The bearing part includes a bearing platform (1). The bearing platform (1) is horizontally arranged. Rollers (2) are installed at the four corners of the bottom surface of the bearing platform (1). A handle (3) is fixedly connected to one end of the bearing platform (1). The water tank (22) is fixedly installed on the top surface of the bearing platform (1).

7. The dust filtration device for road engineering according to claim 6, characterized in that, A vertical shaft (10) is vertically arranged on the top surface of the bearing platform (1). The top end of the vertical shaft (10) is fixedly connected with a U-shaped frame (11). The opening of the U-shaped frame (11) faces upward. The air inlet cylinder (13) is arranged inside the U-shaped frame (11).

8. The dust filtration device for road engineering according to claim 7, characterized in that, Two short shafts are fixedly connected to the outer side wall of the air inlet cylinder (13). The two short shafts are coaxially arranged. The two short shafts are respectively rotatably connected to the two ends of the U-shaped frame (11). One of the short shafts passes through the U-shaped frame (11) and is coaxially fixedly connected to the output shaft of a second adjustment motor (28). The second adjustment motor (28) is fixedly connected to the U-shaped frame (11).

9. The dust filtering device for road engineering according to claim 7, characterized in that, The bottom end of the vertical shaft (10) is rotatably connected to the top surface of the bearing platform (1). A worm gear (8) is coaxially fixedly connected to the vertical shaft (10). The worm gear (8) meshes with a worm (6). The worm (6) is rotatably connected to the top surface of the bearing platform (1) through two shaft seats (5). One end of the worm (6) passes through the shaft seat (5) and is coaxially fixedly connected to the output shaft of a first adjustment motor (9). The first adjustment motor (9) is fixedly connected to the top surface of the bearing platform (1).

10. A road engineering dust filtering device according to claim 2, characterized in that, Both the water delivery pipe (25) and the water return pipe (26) are telescopic hoses.

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