Spraying dust suppression device based on wharf cargo handling

Abstract

The invention discloses a spraying dust suppression device based on wharf cargo handling, and belongs to the technical field of spraying dust suppression, the spraying dust suppression device comprises a spraying frame, a spraying pipe and a lifting mechanism used for driving the spraying frame to ascend and descend, a plurality of pressure nozzles are distributed on the surface of the spraying pipe in a linear array mode, a liquid supply pipe communicated with the spraying pipe is fixedly arranged on the outer side of the spraying frame, and the liquid supply pipe is communicated with the spraying pipe. The spraying pipe is connected with the inner top face of the spraying frame through a hanging bracket, and the spraying pipe is rotationally connected with the hanging bracket. The dust suppression device has the beneficial effects that by arranging the telescopic sleeve, the driving assembly and the transmission assembly, on one hand, the effective spraying length of the spraying pipe can be conveniently adjusted, the spraying pipe is tightly attached to a cargo carrying area, dust suppressant waste is avoided, the stable and efficient dust suppression effect is achieved in the complex and changeable wharf operation environment, and the applicability and practicability of the device are improved; and on the other hand, the spraying pipe is rotated, the spraying angle of the pressure spraying head is accurately adjusted, flying dust generated during cargo carrying is captured and restrained in an all-around mode, and accurate dust suppression is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of spray dust suppression, and in particular to a spray dust suppression device based on cargo handling at a dock. Background Art

[0002] During cargo handling operations at the terminal, operations such as loading, unloading, transshipping and stacking of cargo frequently disturb the dust on the ground and the surface of the cargo, resulting in a large amount of dust. This dust not only seriously pollutes the surrounding atmospheric environment and reduces air quality, but also directly harms the health of terminal workers, such as causing respiratory diseases, eye discomfort and other health problems. It also adheres to the surface of the cargo, which has an adverse effect on the quality of the cargo, especially for precision instruments, electronic equipment and fragile goods, which may cause their performance to be damaged, their appearance to be contaminated, and increase the risk of cargo loss and economic loss.

[0003] Traditional methods of dust suppression at docks are mainly through regular spraying by sprinkler trucks and spraying with fixed nozzles. Although they can moisten the ground and reduce dust to a certain extent, they have limited coverage and cannot accurately target the source of dust, resulting in serious waste of water resources. Fixed nozzle spraying usually lacks flexibility and it is difficult to dynamically adjust the spraying area and angle according to the cargo stacking location and transportation path, resulting in poor dust suppression effects in some areas. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned technical problems and to propose a spray dust suppression device based on dock cargo handling.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A spray dust suppression device based on cargo handling at a dock comprises a spray frame, a spray pipe and a lifting mechanism for driving the spray frame to rise and fall, a plurality of pressure nozzles are distributed in a linear array on the surface of the spray pipe, a liquid supply pipe connected to the spray pipe is fixedly provided on the outside of the spray frame, the spray pipe is connected to the inner top surface of the spray frame through a hanger, and the spray pipe is rotatably connected to the hanger; The inner wall of the spray rack is respectively fixed with telescopic sleeves for sleeved on the outer sides of the two ends of the spray pipe, and the two telescopic sleeves are respectively provided with U-shaped support frames at one end of the suspension, and a driving component for driving the two U-shaped support frames to move is provided inside the spray rack, and the upper end of the U-shaped support frame is provided with a chamfered corner for sliding contact with the top surface of the spray rack, and a reflux component matching with the two telescopic sleeves is provided inside the spray rack; It also includes a transmission component for driving the U-shaped support frame to deflect.

[0006] As a further description of the above technical solution: The driving assembly includes a bidirectional screw rotatably arranged inside the spray frame and two movable seats symmetrically sleeved on the outside of the bidirectional screw. A motor for driving the bidirectional screw to rotate is provided on the outside of the spray frame. The two U-shaped support frames are respectively rotatably connected to the movable seats. A torsion spring is provided at the rotation connection between the U-shaped support frame and the movable seat.

[0007] As a further description of the above technical solution: The reflux assembly comprises a reflux pipe fixedly arranged on the inner side of the spray frame, and the two telescopic sleeves are respectively connected with the reflux pipe through connecting pipes.

[0008] As a further description of the above technical solution: The transmission assembly includes a pull rope and fixed end caps respectively sleeved on both ends of the spray pipe, the end of the spray pipe is provided with a through hole connected to the fixed end cap, a piston rod is movably penetrated on one side of the fixed end cap, a piston matching the inner wall of the fixed end cap is provided at one end of the piston rod, a compression spring is provided between the piston and the inner wall of the fixed end cap, the elastic force of the compression spring is less than the pressure of the pressure nozzle, a first extrusion rod is fixedly provided on the inner side of the U-shaped support frame, the two ends of the pull rope respectively movably penetrate the first extrusion rod and are connected to the other end of the piston rod, an installation cavity is provided on the side wall of the spray frame, and a guide wheel matching the pull rope is rotatably provided inside the installation cavity.

[0009] As a further description of the above technical solution: The movable seat includes a mounting block and an internally threaded sleeve threadedly connected to a bidirectional screw rod, the internally threaded sleeve penetrates and rotates in the middle of the mounting block, the lower end of the mounting block is elastically connected with a first limit piece cooperating with a first extrusion rod for limiting the rotation of the internally threaded sleeve, the upper end of the U-shaped support frame is fixed with a second extrusion rod, the upper end of the mounting block is elastically connected with a second limit piece cooperating with the second extrusion rod for limiting the movement of the mounting block, and the inner top surface of the spray frame is respectively provided with serrated grooves cooperating with the second limit piece.

[0010] As a further description of the above technical solution: A lifting ring cooperating with the pull rope is fixedly arranged on the outer side of the internal threaded sleeve, a fixing sleeve cooperating with the piston rod is fixedly arranged on both sides of the inner wall of the spray frame, a protrusion is fixedly arranged on the outer surface of the piston rod, and a guide groove cooperating with the protrusion is opened on the inner wall of the fixing sleeve.

[0011] As a further description of the above technical solution: The guide groove comprises a strip groove and a spiral groove, one end of the strip groove is connected to the fixed sleeve port, and the other end of the strip groove is connected to the spiral groove.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In the present invention, by arranging the telescopic sleeve, the driving assembly and the transmission assembly, on the one hand, it is convenient to adjust the effective spraying length of the spray pipe, closely fit the cargo handling area, avoid waste of dust suppressant, play a stable and efficient dust suppression role in the complex and changeable dock operating environment, and improve the applicability and practicality of the device; on the other hand, the spray pipe is rotated, and the spray angle of the pressure nozzle is accurately adjusted, so as to capture and suppress the dust generated by cargo handling in all directions, and realize precise dust suppression.

[0013] In the present invention, by setting a lifting mechanism, the height of the spray rack can be adjusted as needed to adapt to the different cargo stacking and handling height requirements of the dock, ensuring that the spray effectively covers the dust source, and by setting a return pipe, a connecting pipe and a second hose, the collected dust suppressant can be returned to the liquid storage tank for recycling in cooperation with the telescopic sleeve, thereby reducing resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The appearance diagram of the spray dust suppression device provided according to an embodiment of the present invention is shown; Figure 2 A partial structural schematic diagram of a spray dust suppression device provided according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the installation structure of a spray pipe according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the internal structure of a fixed end cap provided in an embodiment of the present invention is shown; Figure 5 It shows a schematic structural diagram of the connection state between the telescopic sleeve and the movable seat according to an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a mobile seat provided according to an embodiment of the present invention is shown; Figure 7 A cross-sectional view of a movable seat structure provided according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of a partial structure of a hanger provided according to an embodiment of the present invention is shown; Fig. 9 A schematic diagram of the local structure of a spray pipe provided according to an embodiment of the present invention is shown.

[0015] Legend: 1. Base; 2. Liquid storage tank; 3. Lifting mechanism; 4. Spray rack; 5. Spray pipe; 6. Liquid supply pipe; 7. Motor; 8. Telescopic sleeve; 9. Bidirectional screw rod; 10. First hose; 11. Second hose; 12. Sawtooth groove; 13. Return pipe; 14. Spray head; 15. Hoop; 16. Hanging rod; 17. Pull rope; 18. Fixing sleeve; 19. Connecting sleeve; 20. Guide wheel; 21. End cover; 22. Piston; 23. Pressure Compression spring; 24, piston rod; 25, strip groove; 26, spiral groove; 27, fixing ring; 28, sealing ring; 29, bump; 30, ball; 31, annular groove; 32, mounting block; 33, U-shaped support frame; 34, first extrusion rod; 35, second extrusion rod; 36, internal threaded sleeve; 37, rotating shaft; 38, lifting ring; 39, first clamping block; 40, first spring; 41, second clamping block; 42, second spring; 43, clamping rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] like Figure 1-Figure 9 As shown, a spray dust suppression device based on cargo handling at a dock comprises a spray rack 4, a spray pipe 5 and a lifting mechanism 3 for driving the spray rack 4 to rise and fall. The operation of the lifting mechanism 3 can be used to adjust the height of the spray rack 4 to achieve the effect of spraying dust suppression at different heights. A plurality of pressure nozzles 14 are distributed in a linear array on the surface of the spray pipe 5. The pressure nozzles 14 spray mist liquid to spread the spraying area and improve the dust suppression effect. A liquid supply pipe 6 connected to the spray pipe 5 is fixedly provided on the outer side of the spray rack 4. A base 1 is fixedly provided at the lower end of the lifting mechanism 3 to improve the stability of the lifting mechanism 3. A universal wheel can also be provided at the lower end of the base 1 to facilitate the staff to carry and transfer. A liquid storage tank 2 is arranged at the upper end of the base 1. The liquid storage tank 2 is used to store a dust suppressant with a good ratio. A water pump is arranged inside the liquid storage tank 2. The output end of the water pump is connected to the liquid supply pipe 6 through the first hose 10. The liquid supply pipe 6 is a hard pipe and a flange for connecting the first hose 10 is arranged at the end. The spray pipe 5 is connected to the inner top surface of the spray frame 4 through a hanger. The spray pipe 5 is rotatably connected to the hanger. The hanger includes a hoop 15 and a suspension rod 16. The lower end of the suspension rod 16 is fixedly connected to the hoop 15. The upper end of the suspension rod 16 is fixed to the inner top surface of the spray frame 4 by bolts or welding. A plurality of balls 30 are arranged on the inner side of the hoop 15. An annular groove 31 matching the balls 30 is arranged on the outer surface of the spray pipe 5. The inner wall of the spray frame 4 is respectively fixed with telescopic sleeves 8 for sleeved on the outside of the two ends of the spray pipe 5. The extension and contraction of the telescopic sleeves 8 are used to adjust the effective spraying length of the spray pipe 5. The dust suppressant sprayed from the two ends is in the telescopic sleeves 8 to avoid waste of the dust suppressant. The two telescopic sleeves 8 are suspended at one end and are respectively provided with U-shaped support frames 33. The lower end of the outer surface of the telescopic sleeves 8 is fixedly connected to the inner wall of the U-shaped support frame 33. A driving component for driving the two U-shaped support frames 33 to move is provided inside the spray frame 4. The driving component drives the two U-shaped support frames 33 to move relative to or away from each other, so that the telescopic sleeves 8 are extended or contracted. The upper end of the U-shaped support frame 33 is provided with a chamfered corner that is in sliding contact with the inner top surface of the spray frame 4. A reflux component matched with the two telescopic sleeves 8 is provided inside the spray frame 4. The reflux component is used to recover the dust suppressant collected in the telescopic sleeves 8. It also includes a transmission assembly for driving the U-shaped support frame 33 to deflect.

[0018] Furthermore, the driving assembly includes a bidirectional screw rod 9 rotatably arranged inside the spray frame 4 and two movable seats symmetrically sleeved on the outside of the bidirectional screw rod 9. A motor 7 for driving the bidirectional screw rod 9 to rotate is provided on the outside of the spray frame 4. The output shaft of the motor 7 is connected to one end of the bidirectional screw rod 9 through a coupling. The two U-shaped support frames 33 are respectively connected to the movable seats through a rotating shaft 37. A torsion spring is provided at the rotation connection between the U-shaped support frame 33 and the movable seat.

[0019] Furthermore, the reflux assembly includes a reflux pipe 13 fixed on the inner side of the spray frame 4, and the two telescopic sleeves 8 are respectively connected to the reflux pipe 13 through connecting pipes, and the reflux pipe 13 is connected to the inside of the liquid storage tank 2 through the second hose 11, so that the dust suppressant collected in the telescopic sleeve 8 flows back to the liquid storage tank 2 through the connecting pipe, the reflux pipe 13 and the second hose 11, so as to facilitate subsequent continued use.

[0020] Further, the transmission assembly includes a pull rope 17 and fixed end caps respectively sleeved on both ends of the spray pipe 5, the pull rope 17 is inelastic, the fixed end cap includes a connecting sleeve 19 and an end cover 21, the connecting sleeve 19 is sleeved on the outside of the spray pipe 5, the end cover 21 is fixed to the other end of the connecting sleeve 19, a fixing ring 27 is fixed inside the connecting sleeve 19, a sealing ring 28 is provided between the fixing ring 27 and the end of the spray pipe 5, an embedding groove matching the sealing ring 28 is provided on the surface of the fixing ring 27, a through hole connected to the fixed end cap is provided at the end of the spray pipe 5, after the dust suppressant is introduced into the spray pipe 5, the dust suppressant enters the connecting sleeve 19 through the through hole, and a piston rod 2 is movably penetrated on one side of the fixed end cap 4. A piston 22 is provided at one end of the piston rod 24 and matches with the inner wall of the fixed end cap. A compression spring 23 is provided between the piston 22 and the inner wall of the fixed end cap. The elastic force of the compression spring 23 is less than the pressure of the pressure nozzle 14. When the pressure nozzle 14 is not spraying, the compression spring 23 is compressed by the pressure. A first extrusion rod 34 is fixedly provided on the inner side of the U-shaped support frame 33. Both ends of the pull rope 17 are respectively movable through the first extrusion rod 34 and connected with the other end of the piston rod 24. An installation cavity is provided on the side wall of the spray frame 4. A guide wheel 20 matching with the pull rope 17 is rotatably provided inside the installation cavity. A plurality of guide wheels 20 are provided to guide the movement of the pull rope 17.

[0021] Further, the movable seat includes a mounting block 32 and an internally threaded sleeve 36 threadedly connected to the bidirectional screw rod 9, the internally threaded sleeve 36 penetrates and is rotatably arranged in the middle part of the mounting block 32, the internally threaded sleeve 36 is rotatably connected to the mounting block 32 through a bearing, the lower end of the mounting block 32 is elastically connected with a first limiting member that cooperates with the first extrusion rod 34 and is used to limit the rotation of the internally threaded sleeve 36, the first limiting member includes a second clamping block 41, the lower end of the mounting block 32 is provided with a second mounting groove for connecting the second clamping block 41, the second clamping block 41 is connected to the inner wall of the first mounting groove through a second spring 42, a clamping rod 43 is fixedly arranged on the upper end of the second clamping block 41, a clamping groove that cooperates with the clamping rod 43 is provided on the surface of the internally threaded sleeve 36, and a clamping groove that cooperates with the first extrusion rod 34 is provided at the lower end of the second clamping block 41 The second limiting member includes a first clamping block 39, and the lower end of the mounting block 32 is provided with a first mounting groove for connecting the second clamping block 41. The first clamping block 39 is connected to the inner wall of the first mounting groove through a first spring 40. A slope that cooperates with the second extrusion rod 35 is provided on one side of the upper end of the first clamping block 39. A serrated groove 12 that cooperates with the second limiting member is provided on the inner top surface of the spray frame 4. During use, the first clamping block 39 will be stuck in the serrated groove 12 under the resetting action of the first spring 40, thereby achieving the effect of limiting the movement of the mounting block 32.

[0022] Further, a lifting ring 38 matching with the pull rope 17 is fixedly provided on the outer side of the internal threaded sleeve 36, and the pull rope 17 is located inside the lifting ring 38. A fixing sleeve 18 matching with the piston rod 24 is fixedly provided on both sides of the inner wall of the spray frame 4. A protrusion 29 is fixedly provided on the outer surface of the piston rod 24. A guide groove matching with the protrusion 29 is opened on the inner wall of the fixing sleeve 18. The guide groove includes a strip groove 25 and a spiral groove 26. One end of the strip groove 25 is connected to the port of the fixing sleeve 18, and the other end of the strip groove 25 is connected to the spiral groove 26. During the sliding process of the piston rod 24, the protrusion 29 The strip groove 25 slides into the spiral groove 26, which will gradually deflect the spray pipe 5, thereby achieving the effect of adjusting the angle of the spray pipe 5. This process is divided into two steps. In the first step, when the dust suppressant is introduced into the spray pipe 5, the piston 22 is squeezed and pushed under the action of pressure, so that the compression spring 23 is compressed, and then the piston rod 24 moves. At this time, the protrusion 29 slides in the strip groove 25, and the movement of the piston rod 24 will relax the pull rope 17. As the pull rope 17 gradually relaxes, the pull rope 17 will release the first extrusion rod 34 in the taut state. In order to achieve the effect of position constraint, the U-shaped support frame 33 is gradually deflected under the action of the torsion spring, so that one end of the telescopic sleeve 8 is lifted upward to prevent the backflow of dust suppressant from flowing out from the end of the telescopic sleeve 8. After the U-shaped support frame 33 is deflected, the deflection of the U-shaped support frame 33 will drive the first extrusion rod 34 to deflect, so that the first extrusion rod 34 gradually releases the extrusion of the second clamping block 41. Under the reset action of the second spring 42, the clamping rod 43 is disengaged from the clamping groove, that is, the rotation limit of the internal threaded sleeve 36 is released, and at the same time, the second extrusion rod 35 is deflected to release the extrusion of the first clamping block 39. The first clamping block 39 is pressed into the sawtooth groove 12 under the reset action of the first spring 40, so as to limit the movement of the mounting block 32; in the second step, when the rotation limit of the internal threaded sleeve 36 is released, the two-way screw rod 9 rotates to drive the internal threaded sleeve 36 to rotate idly, and the idling of the internal threaded sleeve 36 will drive the lifting ring 38 to rotate. The rotation of the lifting ring 38 further pulls the pull rope 17, thereby driving the piston rod 24 to move, so that the protrusion 29 slides into the spiral groove 26, thereby driving the spray pipe 5 to rotate, thereby achieving the effect of adjusting the spray angle of the pressure nozzle 14 on the surface of the spray pipe 5.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A spray dust suppression device based on cargo handling at a dock, comprising a spray frame (4), a spray pipe (5) and a lifting mechanism (3) for driving the spray frame (4) to rise and fall, wherein a plurality of pressure nozzles (14) are distributed in a linear array on the surface of the spray pipe (5), characterized in that: A liquid supply pipe (6) connected to the spray pipe (5) is fixedly provided on the outside of the spray frame (4); the spray pipe (5) is connected to the inner top surface of the spray frame (4) via a hanger; and the spray pipe (5) is rotatably connected to the hanger; The inner wall of the spray frame (4) is respectively fixed with telescopic sleeves (8) for sleeved on the outer sides of the two ends of the spray pipe (5), and the two telescopic sleeves (8) are respectively provided with U-shaped support frames (33) at one end suspended in the air. A driving component for driving the two U-shaped support frames (33) to move is provided inside the spray frame (4), and the upper end of the U-shaped support frame (33) is provided with a chamfered corner for sliding contact with the inner top surface of the spray frame (4). A reflux component cooperating with the two telescopic sleeves (8) is provided inside the spray frame (4); It also includes a transmission assembly for driving the U-shaped support frame (33) to deflect.

2. A spray dust suppression device based on cargo handling at a dock according to claim 1, characterized in that: The driving assembly comprises a bidirectional screw rod (9) rotatably arranged inside the spray frame (4) and two movable seats symmetrically sleeved on the outside of the bidirectional screw rod (9); a motor (7) for driving the bidirectional screw rod (9) to rotate is arranged on the outside of the spray frame (4); the two U-shaped support frames (33) are respectively rotatably connected to the movable seats; and a torsion spring is arranged at the rotatable connection between the U-shaped support frame (33) and the movable seat.

3. A spray dust suppression device based on cargo handling at a dock according to claim 1, characterized in that: The return flow assembly comprises a return flow pipe (13) fixedly arranged on the inner side of the spray frame (4), and the two telescopic sleeves (8) are respectively connected to the return flow pipe (13) via connecting pipes.

4. A spray dust suppression device based on cargo handling at a dock according to claim 2, characterized in that: The transmission assembly comprises a pull rope (17) and fixed end caps respectively sleeved on both ends of the spray pipe (5); a through hole communicating with the fixed end cap is provided at the end of the spray pipe (5); a piston rod (24) is movably penetrated through one side of the fixed end cap; a piston (22) is provided at one end of the piston rod (24) and matches with the inner wall of the fixed end cap; a compression spring (23) is provided between the piston (22) and the inner wall of the fixed end cap; the elastic force of the compression spring (23) is less than the pressure of the pressure nozzle (14); a first extrusion rod (34) is fixedly provided on the inner side of the U-shaped support frame (33); both ends of the pull rope (17) respectively movably penetrate the first extrusion rod (34) and are connected to the other end of the piston rod (24); a mounting cavity is provided on the side wall of the spray frame (4); a guide wheel (20) rotatably matched with the pull rope (17) is provided inside the mounting cavity.

5. A spray dust suppression device based on cargo handling at a dock according to claim 4, characterized in that: The movable seat comprises a mounting block (32) and an internally threaded sleeve (36) threadedly connected to a bidirectional screw rod (9); the internally threaded sleeve (36) penetrates and is rotatably arranged in the middle of the mounting block (32); a first limiting member cooperating with a first extrusion rod (34) and used for limiting the rotation of the internally threaded sleeve (36) is elastically connected to the lower end of the mounting block (32); a second extrusion rod (35) is fixedly arranged on the upper end of the U-shaped support frame (33); a second limiting member cooperating with the second extrusion rod (35) and used for limiting the movement of the mounting block (32) is elastically connected to the upper end of the mounting block (32); and sawtooth grooves (12) cooperating with the second limiting member are respectively provided on the inner top surface of the spray frame (4).

6. A spray dust suppression device based on cargo handling at a dock according to claim 5, characterized in that: A lifting ring (38) cooperating with the pull rope (17) is fixedly provided on the outer side of the internal threaded sleeve (36), and a fixing sleeve (18) cooperating with the piston rod (24) is fixedly provided on both sides of the inner wall of the spray frame (4). A protrusion (29) is fixedly provided on the outer surface of the piston rod (24), and a guide groove cooperating with the protrusion (29) is formed on the inner wall of the fixing sleeve (18).

7. A spray dust suppression device based on cargo handling at a dock according to claim 6, characterized in that: The guide groove comprises a strip groove (25) and a spiral groove (26); one end of the strip groove (25) is connected to a port of the fixing sleeve (18), and the other end of the strip groove (25) is connected to the spiral groove (26).

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