Fixed environmental protection water mist sandblasting system built inside a floating dock

Abstract

The present invention belongs to the field of water mist sandblasting, especially an environmentally friendly fixed water mist sandblasting system built into a floating dock. Aiming at the problems of long preparation time, small space, great safety hazards and waste of a large amount of assets of existing mobile water mist sandblasting machines, the following scheme is proposed, which includes a dock body and a first water collecting distributor, a frequency conversion boosting component for boosting is provided on one side of the first water collecting distributor, and the first water collecting distributor is fixedly connected to two interconnected second water collecting distributors through a pipeline. The present invention thoroughly solves the dust pollution problem caused by the dry blasting and rust removal operation of copper ore sand for ship repair, meets the environmental protection requirements of sandblasting construction in the dock, is simple to operate, easy to maintain and highly practical, successfully solves the problem of insufficient water mist sandblasting construction capacity in the current dock, improves the company's green ship repair capabilities, and provides strong technical support and guarantee for the sustainable development of the company's ship repair.

Description

Technical Field

[0001] The invention relates to the technical field of water mist sandblasting, and in particular to a built-in fixed environmentally friendly water mist sandblasting system for a floating dock. Background Art

[0002] A floating dock, also known as a floating dock, is an engineering vessel used for ship repair and shipbuilding. It can be used not only for shipbuilding and repair, but also for salvaging sunken ships and transporting deep-water vessels through shallow waterways. Dust pollution caused by dry blasting of copper ore sand during ship repairs impacts the surrounding environment, is environmentally unfriendly, and does not meet the requirements of sustainable development. With the increasing maturity of mobile water mist sandblasting technology, it has now been successfully applied to sandblasting the interior and exterior hulls of ship docks and cargo holds at ship terminals.

[0003] Although the existing mobile water mist sandblasting machine has reduced the dust pollution problem to a certain extent during operation, it also has many shortcomings and limitations when used in floating docks: 1. It takes 4-5 hours of preparation time to shovel the water mist sandblasting machine in and out of the dock before each sandblasting, which affects the construction efficiency in the dock; 2. The placement of the mobile water mist sandblasting machine in the dock greatly reduces the space between the equipment and the dock, and there is a relatively large safety hazard during aerial vehicle construction; 3. The use of mobile water mist sandblasting equipment in the dock also causes the dock's original fixed built-in sandblasting equipment to be idle, resulting in a significant waste of assets; Therefore, we propose a new floating dock built-in fixed environmentally friendly water mist sandblasting system to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a built-in fixed environmentally friendly water mist sandblasting system for a floating dock.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The floating dock has a built-in fixed environmentally friendly water mist sandblasting system, which includes a dock body and a first water collecting distributor. A variable frequency boosting component for boosting is provided on one side of the first water collecting distributor. The first water collecting distributor is fixedly connected to two second water collecting distributors through a pipe. The second water collecting distributor is provided with multiple sets of water mist connection devices through a valve system and a bridging hose. The water mist connection devices are provided with a water mist injector. The two second water collecting distributors are respectively arranged on the inner walls on both sides of the dock body. The two second water collecting distributors are slidably connected to a sliding box on the side away from each other. The interior of the sliding box is provided with an adjustment component for adjusting the angle of the second water collecting distributor. The top of the dock body is provided with a lifting component for adjusting the height of the sliding box.

[0007] Preferably, the variable frequency boosting assembly includes a control cabinet, an accumulator and three boosting pumps arranged on one side of the first water collecting distributor. The three boosting pumps are fixedly connected to the same interconnected water inlet pipe, and the three boosting pumps and the accumulator are connected to the first water collecting distributor through the same pipeline.

[0008] Preferably, the adjustment component includes a rotating shaft rotatably connected to the inner wall of one side of the sliding box, one end of the rotating shaft is fixedly connected to one end of the second water collecting distributor, the outer wall fixed sleeve of the rotating shaft is provided with a half gear, one side of the half gear is fixedly connected to a cross plate, the outer wall fixed sleeve of the rotating shaft is provided with a torsion spring, the inside of the dock body is fixedly connected with a fixed plate, and the side of the fixed plate close to the half gear is fixedly connected with a plurality of racks movably engaged with the half gear.

[0009] Preferably, the lifting assembly includes a servo motor fixedly connected to the top of the dock body, the output shaft of the servo motor extends to the interior of the dock body and is fixedly connected to a screw rod, the bottom of the screw rod is rotatably connected to the bottom inner wall of the dock body, and a threaded block is slidably connected to the inner wall of one side of the dock body, the screw rod passes through the threaded block and is threadedly connected to the threaded block, and the threaded block is fixedly connected to one side of the sliding box.

[0010] Preferably, a low water level sensor is provided on the water inlet pipe, and a pressure switch and a pressure sensor are provided on the pipe connecting the booster pump, the accumulator and the first water collecting distributor. The low water level sensor, the pressure switch and the pressure sensor are all electrically connected to the control cabinet. Valves are provided on the pipe connecting the booster pump and the first water collecting distributor, the water inlet pipe and the pipe connecting the first water collecting distributor and the second water collecting distributor. A check valve is provided on the pipe connecting the booster pump and the first water collecting distributor.

[0011] Preferably, the water mist connection device includes a sandblasting quick socket outlet, a cast iron tee and a sandblasting quick socket inlet, one end of the sandblasting quick socket inlet is connected to the second water collection distributor, the other end of the sandblasting quick socket inlet is connected to the cast iron tee, and one end of the cast iron tee is connected to the sandblasting quick socket outlet.

[0012] Preferably, the water mist injector includes an atomizing nozzle, a connecting seat, a reducer and a pressure cover, the atomizing nozzle is connected to one end of the cast iron tee, the other end of the atomizing nozzle is connected to the connecting seat, the other end of the connecting seat is connected to the reducer, and the other end of the reducer is connected to the pressure cover.

[0013] Preferably, a plurality of conical flow reducing plates are provided inside the second water collecting and distributing device.

[0014] Preferably, an arc-shaped slide rail is fixedly connected to an inner wall of one side of the sliding box, an arc-shaped slider is fixedly connected to one side of the second water collecting distributor, and the arc-shaped slide rail is slidably connected to the arc-shaped slider.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Stable liquid enters the water mist connection device through the valve system and the bridge hose. Under the action of the pump push pressure, the liquid in the pipe is sprayed and atomized by the water mist ejector, and mixed with the abrasive flowing through to form a water-sand mixture. Under the action of compressed gas, the water-sand mixture continuously jumps and rolls in the sand pipe and mixes all the way until it reaches the outlet of the sandblasting gun. This not only meets the requirements of sandblasting and rust removal in the ship repair dock, but also achieves the environmental protection goal of rust removal of ship hulls in the dock.

[0017] 2. Since the entire device is fixed to the inner wall of the dock, there is no need to transport the mobile water mist sandblasting machine, thus saving 3 to 4 hours of time for each ship docking and undocking. At the same time, it reduces the mechanical wear of the forklift and the loss rate of the tires, saving the cost of use.

[0018] 3. Through the mutual cooperation of the frequency conversion component, lifting component and adjustment component, the nozzle can be ensured to clean the hull in a swinging manner, thereby improving the cleaning effect, thereby ensuring the smooth flow of the passage inside the dock and the continuous operation of the high-pressure water on the outer shell, and improving the first-time inspection pass rate;

[0019] 4. Since the entire device is fixed to the inner wall of the dock body, there is no need to carry a mobile water mist sandblasting machine, and there will be no overlapping operations of shell washing and lightering equipment and materials, reducing the safety risks caused by the overlapping operations of shell washing and lightering equipment and materials;

[0020] 5. As the stable liquid enters the water mist connection device through the valve system and the bridge hose, the liquid in the pipe is atomized by the water mist ejector under the action of the pump pressure and mixed with the abrasive flowing through to form a water-sand mixture, thereby reducing the dust emission in the dock by more than 90%;

[0021] 6. The rust removal efficiency of the water-sand mixture reaches about 80% of dry sandblasting, which is slightly higher than that of the mobile water mist sandblasting machine. It is equipped with adjustment components and lifting components to further improve the cleaning effect.

[0022] The present invention completely solves the dust pollution problem caused by the dry blasting and rust removal operation of copper ore sand in ship repair, meets the environmental protection requirements of sandblasting construction in the dock, is simple to operate, easy to maintain, and highly practical, and successfully solves the current problem of insufficient water mist sandblasting construction capacity in the dock, improves the company's green ship repair capabilities, and provides strong technical support and guarantee for the company's sustainable development of ship repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a system principle diagram of the fixed environmentally friendly water mist sandblasting system built into the floating dock proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the variable frequency boost module in the present invention;

[0025] Figure 3 This is a schematic diagram of the main cross-sectional structure of the water collection and distributor in the present invention;

[0026] Figure 4 Schematic diagram of the explosion of the water mist connection device and the water mist ejector in the present invention;

[0027] Figure 5 This is a schematic diagram of the main structure of the dock body in the present invention;

[0028] Figure 6 It is a rear structural schematic diagram of the sliding box in the present invention;

[0029] Figure 7 Utility-oriented innovation Figure 6 Cross-sectional view of AA;

[0030] Figure 8 This is a diagram of the intelligent control system in the present invention;

[0031] Figure 9 This is a diagram of the variable frequency boosting system in the present invention.

[0032] In the figure: 1. Water inlet pipe; 2. Low water level sensor; 3. Valve; 4. Booster pump; 5. Control cabinet; 6. Accumulator; 7. Pressure switch; 8. Pressure sensor; 9. Water mist connection device; 901. Sandblasting quick socket outlet; 902. Cast iron tee; 903. Sandblasting quick socket inlet; 10. Water mist injector; 1001. Atomizing nozzle; 1002. Connecting seat; 1003. Reducer; 1004. Pressure cover; 11. First water collection distributor; 12. Check valve; 13. Second water collection distributor; 14. Conical flow reducing plate; 15. Servo motor; 16. Screw; 17. Threaded block; 18. Sliding box; 19. Rack; 20. Fixed plate; 21. Cross plate; 22. Torsion spring; 23. Rotating shaft; 24. Half gear; 25. Arc slide rail; 26. Arc slider; 27. Dock body. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1

[0035] Reference Figure 1-9 The floating dock has a built-in fixed environmentally friendly water mist sandblasting system, which includes a dock body 27 and a first water collecting distributor 11. A variable frequency boosting component for boosting is provided on one side of the first water collecting distributor 11. The first water collecting distributor 11 is fixedly connected to two second water collecting distributors 13 connected to each other through a pipeline. The second water collecting distributor 13 is provided with multiple groups of water mist connection devices 9 through a valve system and a bridging hose. A water mist injector 10 is provided on the water mist connection device 9. The two second water collecting distributors 13 are respectively arranged on the inner walls on both sides of the dock body 27. The two second water collecting distributors 13 are slidably connected to a sliding box 18 on the side away from each other. The interior of the sliding box 18 is provided with an adjustment component for adjusting the angle of the second water collecting distributor 13, and the top of the dock body 27 is provided with a lifting component for adjusting the height of the sliding box 18.

[0036] Example 2

[0037] Reference Figure 1-9The present invention provides a technical solution, a floating dock built-in fixed environmentally friendly water mist sandblasting system, including a dock body 27 and a first water collecting distributor 11, characterized in that a frequency conversion supercharging component for boosting is provided on one side of the first water collecting distributor 11, the frequency conversion supercharging component includes a control cabinet 5, an accumulator 6 and three boosting pumps 4 arranged on one side of the first water collecting distributor 11, the three boosting pumps 4 are fixedly connected to the same interconnected water inlet pipe 1, the three boosting pumps 4 and the accumulator 6 are connected to the first water collecting distributor 11 through the same pipe, which can increase the water pressure and improve the cleaning effect, the first water collecting distributor 11 is fixedly connected to two interconnected second water collecting distributors 13 through a pipe, a low water level sensor 2 is provided on the water inlet pipe 1, the boosting pump 4 and the accumulator 6 A pressure switch 7 and a pressure sensor 8 are provided on the pipe connected to the first water collecting distributor 11. The low water level sensor 2, the pressure switch 7 and the pressure sensor 8 are all electrically connected to the control cabinet 5. A valve 3 is provided on the pipe connecting the booster pump 4 to the first water collecting distributor 11, the water inlet pipe 1 and the pipe connecting the first water collecting distributor 11 and the second water collecting distributor 13. A check valve 12 is provided on the pipe connecting the booster pump 4 to the first water collecting distributor 11. The second water collecting distributor 13 is provided with multiple sets of water mist connection devices 9 through a valve system and a bridge hose. A plurality of conical flow reducing plates 14 are provided inside the second water collecting distributor 13. A water mist ejector 10 is provided on the water mist connection device 9. The water mist connection device 9 includes a sandblasting quick socket outlet 901. , a cast iron tee 902 and a sandblasting quick socket inlet 903, one end of the sandblasting quick socket inlet 903 is connected to the second water collecting distributor 13, the other end of the sandblasting quick socket inlet 903 is connected to the cast iron tee 902, one end of the cast iron tee 902 is connected to the sandblasting quick socket outlet 901, the water mist injector 10 includes an atomizing nozzle 1001, a connecting seat 1002, a reducer 1003 and a pressure cover 1004, the atomizing nozzle 1001 is connected to one end of the cast iron tee 902, the other end of the atomizing nozzle 1001 is connected to the connecting seat 1002, the other end of the connecting seat 1002 is connected to the reducer 1003, the other end of the reducer 1003 is connected to the pressure cover 1004, the two second water collecting distributors 13 They are respectively arranged on the inner walls of both sides of the dock body 27, and the two second water collecting distributors 13 are slidably connected to the sides away from each other with a sliding box 18, and the inner wall of one side of the sliding box 18 is fixedly connected with an arc-shaped slide rail 25, and one side of the second water collecting distributor 13 is fixedly connected with an arc-shaped slider 26, and the arc-shaped slide rail 25 is slidably connected to the arc-shaped slider 26. An adjustment component for adjusting the angle of the second water collecting distributor 13 is provided inside the sliding box 18, and the adjustment component includes a rotating shaft 23 rotatably connected to the inner wall of one side of the sliding box 18, one end of the rotating shaft 23 is fixedly connected to one end of the second water collecting distributor 13, and the outer wall fixed sleeve of the rotating shaft 23 is provided with a half gear 24, and one side of the half gear 24 is fixedly connected with a transverse plate 21, and the outer wall fixed sleeve of the rotating shaft 23 is provided with a torsion spring 22.This can ensure that the nozzle swings to clean the hull, improving the cleaning effect. A fixed plate 20 is fixedly connected to the inside of the dock body 27. A plurality of racks 19 that are movably engaged with the half gear 24 are fixedly connected to the side of the fixed plate 20 close to the half gear 24. A lifting assembly for adjusting the height of the sliding box 18 is provided on the top of the dock body 27. The lifting assembly includes a servo motor 15 fixedly connected to the top of the dock body 27. The output shaft of the servo motor 15 extends to the inside of the dock body 27 and is fixedly connected to a screw rod 16. The bottom of the screw rod 16 is rotatably connected to the bottom inner wall of the dock body 27. A threaded block 17 is slidably connected to the inner wall of one side of the dock body 27. The screw rod 16 passes through the threaded block 17 and is threadedly connected to the threaded block 17. The threaded block 17 is fixedly connected to one side of the sliding box 18. The hull can be fully cleaned from top to bottom, increasing the cleaning range.

[0038] Working principle: When in use, the system uses a multi-stage booster pump 4 to transport the liquid to the first water collection distributor 11 through a fixed pipeline, and at the same time, the water pressure is enhanced through the accumulator 6. The first water collection distributor 11 transports the liquid to the inside of the second water collection distributor 13. After the conical flow reduction plate 14 slows down and eliminates the vortex, the stable liquid enters the water mist connection device 9 through the valve system and the bridge hose. Under the action of the pump push pressure, the liquid in the pipe is sprayed and atomized by the water mist injector 10, and mixed with the abrasive flowing through to form a water-sand mixture. Under the action of compressed gas, the water-sand mixture continuously jumps and rolls in the sand pipe and mixes throughout the process until it reaches the outlet end of the sandblasting gun. At the same time, the servo motor 15 is started, and the output shaft of the servo motor 15 drives the screw 16 to rotate, and the screw 16 drives The movable threaded block 17 moves vertically downward, and the threaded block 17 drives the sliding box 18 to move vertically downward, and then the half gear 24 engages with the rack 19, and the half gear 24 rotates, and the half gear 24 drives the rotating shaft 23 to rotate, and the rotating shaft 23 drives the cross plate 21 and the second water collecting distributor 13 to rotate, and the second water collecting distributor 13 drives the water mist connection device 9 and the water mist injector 10 to rotate and then continuously adjust the water spray angle to improve the cleaning efficiency. The cross plate 21 stretches the torsion spring 22. Since the rack 19 is intermittently arranged, when the half gear 24 is not engaged with the rack 19, the cross plate 21 returns to its original position under the action of the torsion spring 22, and then the second water collecting distributor 13 continuously adjusts the water spray angle during the continuous descent process, which can greatly improve the cleaning efficiency.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A fixed environmentally friendly water mist sandblasting system built into a floating dock, comprising a dock body (27) and a first water collection distributor (11), characterized in that: A variable frequency boosting component for boosting is provided on one side of the first water collecting distributor (11), the first water collecting distributor (11) is fixedly connected to two second water collecting distributors (13) which are connected to each other through a pipeline, a plurality of water mist connection devices (9) are provided on the second water collecting distributor (13) through a valve system and a bridging hose, a water mist sprayer (10) is provided on the water mist connection device (9), the two second water collecting distributors (13) are respectively provided on the inner walls of both sides of the dock body (27), the two second water collecting distributors (13) are slidably connected to a sliding box (18) on the side away from each other, and an adjustment component for adjusting the angle of the second water collecting distributor (13) is provided inside the sliding box (18), and the dock body (27) is provided with a plurality of water mist connection devices (9) through a valve system and a bridging hose, and a water mist sprayer (10) is provided on the water mist connection device (9), and the two second water collecting distributors (13) are respectively provided on the inner walls of both sides of the dock body (27), and the two second water collecting distributors (13) are slidably connected to the side away from each other. The sliding box (18) is provided with an adjustment component for adjusting the angle of the second water collecting distributor (13). A lifting assembly for adjusting the height of the sliding box (18) is provided on the top of the dock body (27); the variable frequency boost assembly comprises a control cabinet (5), an accumulator (6) and three boost pumps (4) arranged on one side of the first water collecting distributor (11); the three boost pumps (4) are fixedly connected to a same water inlet pipe (1) that is connected to each other; the three boost pumps (4) and the accumulator (6) are connected to the first water collecting distributor (11) through the same pipe; a low water level sensor (2) is provided on the water inlet pipe (1); a pressure switch (7) and a pressure sensor (8) are provided on the pipe connecting the boost pump (4), the accumulator (6) and the first water collecting distributor (11); the low water level sensor (2), the pressure switch (7) and The pressure sensors (8) are all electrically connected to the control cabinet (5); valves (3) are provided on the pipe connecting the booster pump (4) and the first water collecting distributor (11), the water inlet pipe (1), and the pipe connecting the first water collecting distributor (11) and the second water collecting distributor (13); a check valve (12) is provided on the pipe connecting the booster pump (4) and the first water collecting distributor (11); the water mist connection device (9) includes a sandblasting quick socket outlet (901), a cast iron tee (902) and a sandblasting quick socket inlet (903); one end of the sandblasting quick socket inlet (903) is connected to the second water collecting distributor (13), and the other end of the sandblasting quick socket inlet (903) is connected to the cast iron tee (902). ) is connected, one end of the cast iron tee (902) is connected to the sandblasting quick socket outlet (901); the adjustment component includes a rotating shaft (23) rotatably connected to the inner wall of one side of the sliding box (18), one end of the rotating shaft (23) is fixedly connected to one end of the second water collecting distributor (13), the outer wall of the rotating shaft (23) is fixedly sleeved with a half gear (24), one side of the half gear (24) is fixedly connected with a transverse plate (21), the outer wall of the rotating shaft (23) is fixedly sleeved with a torsion spring (22), the interior of the dock body (27) is fixedly connected with a fixed plate (20), and the side of the fixed plate (20) close to the half gear (24) is fixedly connected with a plurality of racks (19) that are movably engaged with the half gear (24);The lifting assembly includes a servo motor (15) fixedly connected to the top of the dock body (27), the output shaft of the servo motor (15) extends into the interior of the dock body (27) and is fixedly connected to a screw rod (16), the bottom of the screw rod (16) is rotatably connected to the bottom inner wall of the dock body (27), a threaded block (17) is slidably connected to the inner wall of one side of the dock body (27), the screw rod (16) passes through the threaded block (17) and is threadedly connected to the threaded block (17), and the threaded block (17) is fixedly connected to one side of the sliding box (18).

2. The floating dock built-in fixed environmentally friendly water mist sandblasting system according to claim 1 is characterized in that: The water mist injector (10) comprises an atomizing nozzle (1001), a connecting seat (1002), a reducing joint (1003) and a gland (1004); the atomizing nozzle (1001) is connected to one end of a cast iron tee (902); the other end of the atomizing nozzle (1001) is connected to the connecting seat (1002); the other end of the connecting seat (1002) is connected to the reducing joint (1003); and the other end of the reducing joint (1003) is connected to the gland (1004).

3. The floating dock built-in fixed environmentally friendly water mist sandblasting system according to claim 1 is characterized in that: A plurality of conical flow reducing plates (14) are provided inside the second water collecting distributor (13).

4. The floating dock built-in fixed environmentally friendly water mist sandblasting system according to claim 1 is characterized in that: An arc-shaped slide rail (25) is fixedly connected to the inner wall of one side of the sliding box (18), and an arc-shaped slide block (26) is fixedly connected to one side of the second water collecting distributor (13), and the arc-shaped slide rail (25) is slidably connected to the arc-shaped slide block (26).

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