Water mist dust removal device

Abstract

The application relates to the technical field of building construction equipment, in particular to a water mist dust removal device which comprises a box body and an air outlet pipe, a flexible air pipe is connected to an air inlet of the air outlet pipe, the flexible air pipe is connected with a fan located in the box body, a water tank is further arranged in the box body, a water pump is arranged on one side of the water tank, the water pump is connected with an annular water pipe in the air outlet pipe through a water supply pipe, atomizing nozzles are arranged on the annular water pipe; a ventilation hole is arranged on the side surface of the box body and close to the fan, a stand is arranged in the box body and close to the periphery of the fan, a chain wheel is arranged at the top and the bottom of each stand, chains are arranged around the chain wheels at the same height of the stands, a filter screen is arranged between the two chains, a first motor is arranged in the box body and close to one of the stands and is in transmission connection with the chain wheel on the stand; a filter screen cleaning mechanism is arranged in the box body and close to the filter screen, and a dust collecting box is arranged below the filter screen cleaning mechanism. The air inhaled by the fan is filtered and dusted through the filter screen, and the sprayed water mist is purified.

Description

Technical Field

[0001] This invention relates to the field of construction equipment technology, and in particular to a water mist dust removal device. Background Technology

[0002] Dust is generated during construction, so water mist dust suppression devices are installed on construction sites to reduce dust. Currently, most water mist dust suppression devices used on construction sites consist of a water tank, atomizing nozzles, and a fan. During the dust suppression process, the fan directly draws air from the surrounding dusty environment for spraying water mist, without the functions of air filtration and dust collection, resulting in a large amount of mud and sand mixed in with the water mist. Summary of the Invention

[0003] To address the above problems, embodiments of the present invention provide a water mist dust removal device.

[0004] One aspect of this invention provides a water mist dust removal device, including a housing, an air outlet rotatably mounted on the housing, an air inlet connected to a flexible duct, the flexible duct connected to a fan located in the housing, a water tank inside the housing, a water pump on one side of the water tank, the water pump connected to an annular water pipe at the air outlet in the air outlet via a water supply pipe, an atomizing nozzle mounted on the annular water pipe, and a water inlet communicating with the water tank on the top surface of the housing; ventilation holes are provided on the side of the housing near the fan, and columns are provided between the top and bottom surfaces of the housing and around the fan, with sprockets rotatably mounted at the top and bottom of each column, a chain wound between the sprockets at the same height on each column, and a filter screen installed between the two chains; a first motor is provided inside the housing near one of the columns and is drivenly connected to the sprocket on that column; a filter screen cleaning mechanism is provided inside the housing near the filter screen, and a dust collection box is provided below the filter screen cleaning mechanism.

[0005] Compared with the prior art, the beneficial effects of the present invention are as follows: the filter screen is set to filter and remove dust from the air drawn in by the fan, thereby purifying the sprayed water mist; and the filter screen rotates under the drive of the chain and sprocket, and the filter screen can be cleaned by the filter screen cleaning mechanism during the rotation process to ensure the filtration and dust removal effect, while collecting the dust cleaned off the filter screen to prevent it from re-entering the environment.

[0006] Optionally, a cover plate can be detachably fastened to the outside of the box and opposite the ventilation hole. An air inlet pipe is provided on the cover plate, and an air inlet cover is connected to the air inlet pipe.

[0007] Optionally, the filter cleaning mechanism includes a pressure barrier cover housed inside the housing, through which the filter passes. The pressure barrier cover houses a cleaning roller brush and a second motor that drives the cleaning roller brush to rotate. The brush surface of the cleaning roller brush is in contact with the filter, and the dust collection box is connected to the bottom of the pressure barrier cover.

[0008] Optionally, the annular water pipe is composed of an arc-shaped water pipe and a three-way rotary joint, and the atomizing nozzle is installed on the three-way rotary joint; the air outlet is also equipped with an angle adjustment mechanism, which includes a first turbine rotatably disposed on the inner wall of the air outlet and on the outer periphery of the annular water pipe, the inner wall of the first turbine is provided with an arc-shaped limiting groove, and the three-way rotary joint is provided with a limiting post, the end of which is placed in the arc-shaped limiting groove; an elongated hole is opened on the air outlet at a position opposite to the first turbine, and a worm gear meshing with the first turbine is rotatably disposed at the elongated hole. During the process of rotating the worm gear to drive the first turbine to rotate, the limiting post is deflected under the restriction of the arc-shaped limiting groove, thereby changing the spray angle of the atomizing nozzle.

[0009] Optionally, the air outlet in the air outlet duct is a constricted frustum structure. The air outlet duct is also equipped with an air outlet adjustment mechanism. The air outlet adjustment mechanism includes an annular elastic cover fitted on the frustum structure, a second turbine set on the air outlet duct and meshing with a worm gear, a fixed column eccentrically set on the second turbine, a first connecting rod rotatably fitted on the fixed column, a second connecting rod rotatably connected to the end of the first connecting rod, the rotation directions of the first connecting rod and the second connecting rod are perpendicular, and the end of the second connecting rod is rotatably connected to the annular elastic cover.

[0010] Optionally, multiple movable columns are fixed at equal intervals on the upper part of the annular elastic cover, and the end of the second connecting rod is rotatably connected to one of the movable columns.

[0011] Optionally, a rotating seat is provided on the top surface of the housing, and a support frame is provided on the rotating seat. The air outlet is installed on the support frame. A drive shaft is provided at the center of the bottom surface of the rotating seat. The drive shaft passes through the housing. A third motor is provided in parallel to the drive shaft on one side of the housing. A third connecting rod is horizontally sleeved on the output shaft of the third motor. A drive column is vertically provided on the third connecting rod. A fourth connecting rod is horizontally provided on the drive shaft. The fourth connecting rod has an elongated hole and is movably sleeved on the drive column through the elongated hole. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, are not intended to limit the scope of the invention. In the drawings:

[0013] Figure 1 This is a three-dimensional structural diagram of a water mist dust removal device provided in an embodiment of the present invention;

[0014] Figure 2 for Figure 1A partial structural diagram at point A in the middle;

[0015] Figure 3 for Figure 1 Schematic diagram of the partial structure at point B;

[0016] Figure 4 This is a schematic diagram of the structure of a water mist dust removal device after the cover plate is disassembled, according to an embodiment of the present invention.

[0017] Figure 5 This is a top view of a water mist dust removal device provided in an embodiment of the present invention;

[0018] Figure 6 for Figure 5 A schematic diagram of the partial structure at point C;

[0019] Figure 7 This is a schematic diagram of the structure of the annular water pipe and the first turbine in a water mist dust removal device provided in an embodiment of the present invention;

[0020] Figure 8 This is a schematic diagram of the assembly structure of an annular water pipe and a first turbine in a water mist dust removal device provided in an embodiment of the present invention;

[0021] Figure 9 This is a schematic diagram of the assembly structure of the first turbine and the air outlet in a water mist dust removal device provided in an embodiment of the present invention;

[0022] Figure 10 This is a schematic diagram of the front cross-sectional structure of a water mist dust removal device provided in an embodiment of the present invention;

[0023] Figure 11 This is a schematic diagram of a filter screen and its driving structure in a water mist dust removal device provided in an embodiment of the present invention;

[0024] Figure 12 This is a schematic diagram of the air outlet adjustment mechanism in a water mist dust removal device provided in an embodiment of the present invention;

[0025] Figure 13 This is a schematic diagram of the swing structure of the air outlet duct in a water mist dust removal device provided in an embodiment of the present invention.

[0026] The components include: 1. Housing; 2. Air outlet; 3. Flexible air duct; 4. Fan; 5. Water tank; 6. Water pump; 7. Water supply pipe; 8. Ring water pipe; 9. Atomizing nozzle; 10. Water inlet; 11. Ventilation hole; 12. Column; 13. Sprocket; 14. Chain; 15. Filter screen; 16. First motor; 17. Filter screen cleaning mechanism; 18. Dust collection box; 19. Cover plate; 20. Air inlet pipe; 21. Air inlet hood; 22. Hook; 23. Pressure barrier cover; 24. Cleaning roller brush; 25. Second motor; and arc-shaped... 26. Water pipe, 27. T-joint, 28. Angle adjustment mechanism, 29. First turbine, 30. Arc-shaped limiting groove, 31. Limiting post, 32. Worm gear, 33. Air outlet adjustment mechanism, 34. Annular elastic cover, 35. Second turbine, 36. Fixed post, 37. First connecting rod, 38. Second connecting rod, 39. Moving post, 40. Rotating seat, 41. Support frame, 42. Drive shaft, 43. Third motor, 44. Third connecting rod, 45. Drive post, 46. Fourth connecting rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this invention are used to explain the invention, but are not intended to limit the invention.

[0028] See Figures 1-13 This invention provides a water mist dust removal device, comprising a housing 1, an air outlet 2 rotatably mounted on the housing 1, a flexible air duct 3 connected to the air inlet of the air outlet 2, the flexible air duct 3 being connected to a fan 4 located in the housing 1, a water tank 5 also being provided inside the housing 1, a water pump 6 being provided on one side of the water tank 5, the water pump 6 being connected to an annular water pipe 8 located at the air outlet of the air outlet 2 via a water supply pipe 7, an atomizing nozzle 9 being provided on the annular water pipe 8, a water inlet 10 communicating with the water tank 5 being provided on the top surface of the housing 1, and a ventilation hole 11 being provided on the side of the housing 1 near the fan 4. A column 12 is provided between the top and bottom surfaces of the housing 1 and at the outer periphery of the fan 4. A sprocket 13 is rotatably provided at the top and bottom of each column 12. A chain 14 is wound between the sprockets 13 at the same height on each column 12. A filter screen 15 is installed between the two chains 14. A first motor 16 is provided inside the housing 1 near one of the columns 12 and is connected to the sprocket 13 on that column 12. A filter cleaning mechanism 17 is provided inside the housing 1 near the filter screen 15. A dust collection box 18 is provided below the filter cleaning mechanism 17.

[0029] In practice, the housing 1 can be a rectangular housing structure. Ventilation holes 11 can be provided on the three sides of the housing 1 near the fan 4. During the adjustment of the air outlet duct 2, the flexible air duct 3 can ensure the connection effect between the air outlet duct 2 and the fan 4.

[0030] A cover plate 19 is detachably fastened to the outside of the housing 1 and opposite to the ventilation hole 11. An air inlet pipe 20 is provided on the cover plate 19, and an air inlet hood 21 is connected to the air inlet pipe 20. The cover plate 19 serves as a negative pressure switching mechanism. When the cover plate 19 is removed, the air inlet of the entire device enters through the ventilation hole 11. When the cover plate 19 is placed over the ventilation hole 11, the cover plate 19 blocks the ventilation hole 11. At this time, air is introduced into the device through the air inlet hood 21 and the air inlet pipe 20. In this state, the air inlet hood 21 can be moved to the dust generation point, and the dust can be treated from the source by the negative pressure suction of the fan 4. A hook 22 can also be provided on the cover plate 19. After use, the air inlet pipe 20 can be coiled up and hung on the hook 22.

[0031] The filter cleaning mechanism 15 includes a pressure barrier cover 23 disposed inside the housing 1. The filter screen 15 passes through the pressure barrier cover 23. A cleaning roller brush 24 and a second motor 25 for driving the cleaning roller brush 24 to rotate are disposed inside the pressure barrier cover 23. The brush surface of the cleaning roller brush 24 is in contact with the filter screen 15. The dust collection box 18 is connected to and disposed at the bottom of the pressure barrier cover 23. The pressure barrier cover 23 covers the filter screen 15, and the filter screen 15 inside the pressure barrier cover 23 will be released from the negative pressure state. At this time, the cleaning roller brush 24 cleans the outer wall of the filter screen, and the dust that is cleaned off naturally falls into the dust collection box 18 below for collection. In practice, the rotation direction of the cleaning roller brush 24 is opposite to the rotation direction of the filter screen 15.

[0032] The annular water pipe 8 is formed by connecting an arc-shaped water pipe 26 and a three-way rotary joint 27. Atomizing nozzles 9 are installed on the three-way rotary joint 27, with each nozzle 9 installed at an angle, and the angles are consistent. The air outlet duct 2 is also equipped with an angle adjustment mechanism 28, which includes a first turbine 29 rotatably mounted on the inner wall of the air outlet duct 2 and located on the outer periphery of the annular water pipe 8. Specifically, an annular groove can be provided on the inner wall of the air outlet duct 2, and the first turbine 29 is slidably mounted within the annular groove. An arc-shaped limiting groove 30 is provided on the inner wall of the first turbine 29. The number of nozzles 30 is equal to the number of atomizing nozzles 9. A limiting post 31 is provided on the three-way rotary joint 27. The end of the limiting post 31 is placed in the arc-shaped limiting groove 30. The arc-shaped limiting groove 30 is inclined and slides between itself and the limiting post 31. An elongated hole is opened on the air outlet 2 at a position opposite to the first turbine 29. A worm gear 32 that meshes with the first turbine 29 is rotatably provided at the elongated hole. During the process of rotating the worm gear 32 to drive the first turbine 29 to rotate, the limiting post 31 deflects under the restriction of the arc-shaped limiting groove 30, thereby changing the spray angle of the atomizing nozzle 9.

[0033] The air outlet in the air outlet duct 2 has a constricted frustum structure. The air outlet duct 2 is also equipped with an air outlet adjustment mechanism 33. The air outlet adjustment mechanism 33 includes an annular elastic cover 34 fitted onto the frustum structure, a second turbine 35 mounted on the air outlet duct 2 and meshing with a worm gear 32, a fixed post 36 eccentrically mounted on the second turbine 35, a first connecting rod 37 rotatably mounted on the fixed post 36, and a second connecting rod 38 rotatably connected to the end of the first connecting rod 37. The rotation directions of the first connecting rod 37 and the second connecting rod 38 are perpendicular, and the end of the second connecting rod 38 is rotatably connected to the annular elastic cover 34. The second turbine 35 is driven by the worm gear 32. When the device rotates downwards, the position of the fixed column 36 will also change. With the help of the constantly changing position of the fixed column 36, the first connecting rod 37 is forced to move, and the second connecting rod 38 is simultaneously driven to deflect while moving. This causes the annular elastic cover 34 to move towards the air outlet. During the movement, the annular elastic cover 34 gradually tightens to maintain a close fit with the air outlet 2. After tightening, the diameter of the air outlet becomes smaller. At the same time, under the action of the angle adjustment mechanism 28, the angle of the atomizing nozzle 9 is adjusted to achieve the narrowing adjustment of the water mist spray area. Correspondingly, the reverse rotation of the worm gear 32 can achieve the increase adjustment of the water mist spray area.

[0034] Multiple movable columns 39 are fixed at equal intervals on the upper part of the annular elastic cover 34. When fixed, the movable columns 39 can be clamped and fixed on the annular elastic cover 34. The end of the second connecting rod 38 is rotatably connected to a movable column 39.

[0035] A rotating seat 40 is provided on the top surface of the housing 1, and a support frame 41 is provided on the rotating seat 40. The air outlet duct 2 is installed on the support frame 41. A drive shaft 42 is provided at the center of the bottom surface of the rotating seat 40. The drive shaft 42 passes into the housing 1. A third motor 43 is arranged parallel to the drive shaft 42 on one side of the housing 1. A third connecting rod 44 is horizontally sleeved on the output shaft of the third motor 43. A drive column 45 is vertically arranged on the third connecting rod 44. A fourth connecting rod 46 is horizontally arranged on the drive shaft 42. The fourth connecting rod 46 has an elongated hole and is movably sleeved on the drive column 45 through the elongated hole. When the third motor 43 is started, it drives the third connecting rod 44 to rotate. During the rotation, it drives the fourth connecting rod 46 to swing back and forth, thereby realizing the back and forth swing of the drive shaft 42 and the rotating seat 40 within a certain angle. This makes the direction of water mist spraying back and forth to remove dust within a certain angle range, avoiding excessive concentration of water mist.

[0036] The water mist dust removal device of the present invention is equipped with an air filtration mechanism, which can purify the sprayed air water mist and simultaneously achieve the function of filtering and removing dust from the air in the space. When dust is generated in a relatively concentrated manner, the dust suction position can be adjusted by the cover plate 19, the air inlet pipe 20, and the air inlet cover 21 to solve the dust problem at the source. At the same time, the filter cleaning mechanism 17 can clean the filter 15 to ensure the purification effect of the air and collect the dust to prevent it from re-entering the environment.

[0037] An angle adjustment mechanism 28 and an air outlet adjustment mechanism 33 are provided on the air outlet duct 2. Through the cooperation of the two mechanisms, the spray angle of the water mist can be adjusted, and the diameter of the air outlet can be reduced, so that the water mist is concentrated in the middle of the air outlet duct 2 and sprayed out. The sprayed water mist is relatively concentrated, which can effectively cope with high dust operation environment and dust concentration environment. Conversely, the spray angle of the water mist and the diameter of the air outlet can be increased, making the use of multiple modes more flexible.

[0038] The air outlet 2 can reciprocate within a certain angle through the third motor 43 and the drive structure, resulting in a wider water mist coverage area and greater practicality.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. A water mist dust removal device, comprising a housing, an air outlet rotatably mounted on the housing, an air inlet in the air outlet connected to a flexible duct, the flexible duct being connected to a fan located within the housing, a water tank also being housed within the housing, a water pump being mounted on one side of the water tank, the water pump being connected via a water supply pipe to an annular water pipe located at the air outlet in the air outlet, an atomizing nozzle being mounted on the annular water pipe, and a water inlet communicating with the water tank being located on the top surface of the housing; characterized in that, Ventilation holes are located on the side of the housing near the fan. Columns are positioned between the top and bottom surfaces of the housing, around the fan's perimeter. Each column has sprockets at its top and bottom, and chains are wound between these sprockets at the same height. A filter screen is installed between the chains. A first motor is located inside the housing near one of the columns, and the first motor is connected to the sprocket on that column. A filter cleaning mechanism is located inside the housing near the filter screen, and a dust collection box is located below the filter cleaning mechanism. An annular water pipe is formed by connecting an arc-shaped water pipe and a three-way rotary joint, and atomized spray... The head is mounted on a three-way rotary joint; the air outlet is also equipped with an angle adjustment mechanism, which includes a first turbine that is rotatably mounted on the inner wall of the air outlet and on the outer periphery of the annular water pipe. The inner wall of the first turbine is provided with an arc-shaped limiting groove. The three-way rotary joint is provided with a limiting post, the end of which is placed in the arc-shaped limiting groove. An elongated hole is opened on the air outlet at a position opposite to the first turbine. A worm gear that meshes with the first turbine is rotatably mounted at the elongated hole. During the process of rotating the worm gear to drive the first turbine to rotate, the limiting post is deflected under the restriction of the arc-shaped limiting groove, thereby changing the spray angle of the atomizing nozzle.

2. The water mist dust removal device as described in claim 1, characterized in that, A cover plate is detachably fastened to the outside of the box and opposite the ventilation hole. An air inlet pipe is installed on the cover plate, and an air inlet hood is connected to the air inlet pipe.

3. The water mist dust removal device as described in claim 1, characterized in that, The filter cleaning mechanism includes a pressure barrier cover installed inside the housing. The filter screen passes through the pressure barrier cover. A cleaning roller brush and a second motor that drives the cleaning roller brush to rotate are installed inside the pressure barrier cover. The brush surface of the cleaning roller brush is in contact with the filter screen. The dust collection box is connected to and installed at the bottom of the pressure barrier cover.

4. The water mist dust removal device as described in claim 1, characterized in that, The air outlet in the air outlet duct has a constricted frustum structure. The air outlet duct is also equipped with an air outlet adjustment mechanism. The air outlet adjustment mechanism includes an annular elastic cover fitted on the frustum structure, a second turbine set on the air outlet duct and meshing with a worm gear, a fixed column eccentrically set on the second turbine, a first connecting rod rotatably fitted on the fixed column, and a second connecting rod rotatably connected to the end of the first connecting rod. The rotation directions of the first connecting rod and the second connecting rod are perpendicular, and the end of the second connecting rod is rotatably connected to the annular elastic cover.

5. The water mist dust removal device as described in claim 4, characterized in that, Multiple movable columns are fixed at equal intervals on the upper part of the annular elastic cover, and the end of the second connecting rod is rotatably connected to one of the movable columns.

6. The water mist dust removal device as described in claim 1, characterized in that, A rotating seat is provided on the top surface of the housing, and a support frame is provided on the rotating seat. The air outlet is installed on the support frame. A drive shaft is provided at the center of the bottom surface of the rotating seat. The drive shaft passes through the housing. A third motor is provided in parallel to the drive shaft on one side of the housing. A third connecting rod is horizontally sleeved on the output shaft of the third motor. A drive column is vertically provided on the third connecting rod. A fourth connecting rod is horizontally provided on the drive shaft. The fourth connecting rod has an elongated hole and is movably sleeved on the drive column through the elongated hole.

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