Double-dock barge external independent water mist sand blasting environmental protection device

Abstract

The present application relates to rust removal device technical field, and disclose a kind of double dock barge external independent water mist sand blasting environmental protection device, including equipment main body, the upper surface of the equipment main body is clamped with air pressure group, one end of the air pressure group is clamped with pipeline group and sand blasting group, water pressure group, track, injection group, maintenance group, recycling box.The present application provides a kind of double dock barge external independent water mist sand blasting environmental protection device, with the following beneficial effects, through air pressure group, pipeline group, sand blasting group and water pressure group structure, air compressor is compressed into gas storage tank, gas storage tank is put into cold dryer, through pipeline group reaches tee, sand is moved to sand distributor by conveyor belt, sand is put into sand cylinder, water supply device is pumped to pipeline group injection, through injection group, maintenance group, recycling box and filter group structure, maintenance group is maintained to track, water extractor and water sprayer are pumped away, filtered water is discharged, sand is recycled and reused next time.

Description

Technical Field

[0001] The invention relates to the technical field of rust removal devices, in particular to an external independent water mist sandblasting environmental protection device for a double-dock barge. Background Art

[0002] Sandblasting machine uses the impact and cutting effect of abrasives on the surface of the workpiece to make the surface of the workpiece obtain a certain degree of cleanliness and different roughness, so as to improve the mechanical properties of the workpiece surface. It is widely used in ship repair, general coating and other cleaning of steel structure surfaces.

[0003] The original sandblasting barge is 38000mm long, 10000mm wide and 1740mm high, and is equipped with two 0.75m 3 The dry blasting equipment, along with the abrasive delivery system, is equipped with a sandblasting cylinder, two air storage drums, and two 45kW air compressors, capable of operating two guns for dry blasting. The ship's hull sandblasting and rust removal work is accomplished by using a barge to house the dry blasting equipment and abrasive delivery system. The equipment is stacked disorganized, resulting in low rust removal efficiency. During the rust removal process, a large amount of crushed abrasive dust is generated. Under certain wind conditions, the dust can spread over an area several kilometers around the dock, severely damaging air quality and causing significant disruption to residents near the shipyard. The scattered dust also poses a threat to the nearby waters and ecological environment.

[0004] Water mist sandblasting for rust removal uses compressed air as the power to form a high-speed jet beam to spray the material (copper ore sand, quartz sand, corundum, iron sand, Hainan sand) at high speed onto the surface of the workpiece to be processed, so that the appearance or shape of the outer surface of the workpiece changes. Due to the impact and cutting effect of the abrasive on the workpiece surface, the surface of the workpiece obtains a certain degree of cleanliness and different roughness, and the mechanical properties of the workpiece surface are improved, thereby improving the fatigue resistance of the workpiece, increasing the adhesion between it and the coating, extending the durability of the coating, and also facilitating the leveling and decoration of the coating. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides an independent water mist sandblasting environmental protection device for a double-dock barge, which has multiple functions and is convenient for cleaning and drying, thereby solving the problems of various impacts of sandblasting on the environment.

[0007] (2) Technical solution

[0008] In order to achieve the purpose of the above-mentioned rust removal device, the present invention provides the following technical solutions: an independent water mist sandblasting environmental protection device for a double-dock barge, comprising an equipment main body, an air pressure group is clamped on the upper surface of the equipment main body, a pipe group is clamped on one end of the air pressure group, a sandblasting group is clamped on one end of the pipe group, a water pressure group is sleeved on one end of the pipe group, a track is provided inside the equipment main body, a spray group is clamped on the upper surface of the track, a maintenance group is clamped on the upper surface of the track, a recovery box is clamped inside the equipment main body, a filter group is provided inside the recovery box, a water pump is clamped inside the recovery box, a filter net is inserted inside the recovery box, a water sprayer is provided inside the recovery box, a cover plate is clamped on the upper surface of the cover plate, and a pull ring is provided on the upper surface of the cover plate.

[0009] Preferably, the air pressure group includes an air compressor, a large T-tube, an air storage tank, a small T-tube, and a cold dryer. The air compressor is clamped on the upper surface of the equipment body, a large T-tube is plugged into one side of the air compressor, the upper surface of the large T-tube is sleeved with an air storage tank, a small T-tube is clamped into one side of the air storage tank, and the other end of the small T-tube is plugged into the cold dryer.

[0010] Preferably, the pipeline group includes an air pipe, a tee, a sand pipe, and a water pipe. One end of the air pressure group is clamped with the air pipe, the other end of the air pipe is sleeved with the tee, one side of the tee is plugged with the sand pipe, and the other side of the tee is plugged with the water pipe.

[0011] Preferably, the sandblasting group includes a sand cylinder, a sand separator, a conveyor belt, and a sand basin. One end of the pipeline group is connected to the sand cylinder, the upper surface of the sand cylinder is connected to the sand separator, one side of the sand separator is connected to the conveyor belt, and the other end of the conveyor belt is connected to the sand basin.

[0012] Preferably, the water pressure group includes a water supply device, a U-shaped tube, and a water tank. One end of the pipe group is connected to the water supply device, the lower surface of the water supply device is plugged with a U-shaped tube, and the other end of the U-shaped tube is connected to the water tank.

[0013] Preferably, the spray group includes a guide wheel A, a box body, a hinge, a cover, a spray gun, and a pipe shaft. The upper surface of the track is clamped with the guide wheel A, the upper surface of the guide wheel A is sleeved with the box body, the box body is connected to the cover by rotating through the hinge, the interior of the box body is clamped with the spray gun, and the interior of the box body is plugged with the pipe shaft.

[0014] Preferably, the maintenance group includes a guide wheel B, a maintenance base, an oil drum, and a maintenance brush. The upper surface of the track is clamped with the guide wheel B, the upper surface of the guide wheel B is sleeved with the maintenance base, the interior of the maintenance base is plugged with an oil drum, and one end of the maintenance base is clamped with a maintenance brush.

[0015] Preferably, the filter group includes a filter plate A, a filter plate B, and a filter plate C. The recycling box is provided with a filter plate A inside, a filter plate B is provided on one side of the filter plate A, and a filter plate C is provided on the other side of the filter plate B.

[0016] Preferably, a house is provided on the upper surface of the equipment body, and a boat trough is provided on the upper surface of the equipment body.

[0017] (3) Beneficial effects

[0018] Compared with the existing technology, the present invention provides an external independent water mist sandblasting environmental protection device for a double dock barge, which has the following beneficial effects:

[0019] 1. This is an external independent water mist sandblasting environmental protection device for a double-dock barge. Through the air pressure group, pipeline group, sandblasting group and water pressure group structure, during use, the air compressor compresses the gas into the gas tank, and then the gas tank puts the gas into the cold dryer for dehydration operation, and then reaches the intersection with other equipment through the pipeline group. The sand in the sand basin is moved to the inside of the sand separator through the conveyor belt, and the sand separator then puts the sand into four different sand cylinders respectively, and then the sand is sprayed through the pipeline group. The water supply device pumps the water in the water tank into the pipeline group through a U-shaped pipe for spraying. These three spraying materials can be used for rust removal, as well as for water spraying to clean residues, wind drying water and other operations, which greatly reduces working time and improves work efficiency.

[0020] 2. This is an external independent water mist sandblasting environmental protection device for a double-dock barge. It consists of a spraying group, a maintenance group, a recovery box and a filter group. During use, the maintenance group is used to maintain the track, which facilitates the normal use of the subsequent spraying group and prevents water from corroding the track, greatly reducing the possibility of track rust. There are pumps and sprinklers inside the recovery box, which can pump away the sand and water near the main body of the equipment, and then discharge the filtered water out of the equipment. The remaining sand can be recycled and reused next time, which greatly reduces material expenditure and greatly improves the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an independent water mist sandblasting environmental protection device externally mounted on a double-dock barge proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of an independent water mist sandblasting environmental protection device externally mounted on a double-dock barge proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the structural parts of an independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0024] Figure 4This is a schematic diagram of the internal structure of a recovery box for an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the parts structure of a recovery box for an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the air pressure group of an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the pipeline structure of an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0028] Figure 8 This is a structural diagram of a sandblasting group of an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the hydraulic group of an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the spray group of an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of a maintenance group for an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention;

[0032] Figure 12 This is a schematic diagram of the structure of the filter group of an external independent water mist sandblasting environmental protection device for a double-dock barge proposed by the present invention.

[0033] In the figure: 1. Equipment body; 2. Air pressure group; 201. Air compressor; 202. Large T-tube; 203. Air storage tank; 204. Small T-tube; 205. Cold dryer; 3. Pipe group; 301. Air pipe; 302. Tee; 303. Sand pipe; 304. Water pipe; 4. Sand blasting group; 401. Sand cylinder; 402. Sand separator; 403. Conveyor belt; 404. Sand basin; 5. Water pressure group; 501. Water supply device; 502. U-shaped pipe; 503. Water tank; 6. Track; 7. Spray group; 7 01. Guide wheel A; 702. Box body; 703. Hinge; 704. Lid; 705. Spray gun; 706. Pipe shaft; 8. Maintenance group; 801. Guide wheel B; 802. Maintenance base; 803. Oil drum; 804. Maintenance brush; 9. Recovery box; 10. Filter group; 1001. Filter plate A; 1002. Filter plate B; 1003. Filter plate C; 11. Water pump; 12. Filter screen; 13. Sprayer; 14. Cover plate; 15. Pull ring; 16. House; 17. Ship trough. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0035] Example: Reference Figure 1-12The figure shows an external independent water mist sandblasting environmental protection device for a double dock barge.The main body 1 of the equipment comprises an air pressure group 2 which is connected to the upper surface of the main body 1, a pipe group 3 is connected to one end of the air pressure group 2, a sandblasting group 4 is connected to one end of the pipe group 3, a water pressure group 5 is sleeved on one end of the pipe group 3, a track 6 is provided inside the main body 1, a spray group 7 is connected to the upper surface of the track 6, a maintenance group 8 is connected to the upper surface of the track 6, a recovery box 9 is connected to the inside of the main body 1, a filter group 10 is provided inside the recovery box 9, a water pump 11 is connected to the inside of the recovery box 9, a filter screen 12 is plugged into the inside of the recovery box 9, a water sprayer 13 is provided inside the recovery box 9, a cover plate 14 is connected to the upper surface of the cover plate 14, a pull ring 15 is provided on the upper surface of the air pressure group 2 comprises an air compressor 201, a large T-tube 202, an air storage tank 203, Small T-tube 204, cold dryer 205, the upper surface of the equipment body 1 is connected with an air compressor 201, one side of the air compressor 201 is plugged with a large T-tube 202, the upper surface of the large T-tube 202 is sleeved with an air storage tank 203, one side of the air storage tank 203 is connected with a small T-tube 204, the other end of the small T-tube 204 is plugged with a cold dryer 205, the pipeline group 3 includes an air pipe 301, a tee 302, a sand pipe 303, and a water pipe 304. One end of the air pressure group 2 is connected with the air pipe 301, the other end of the air pipe 301 is sleeved with a tee 302, one side of the tee 302 is plugged with a sand pipe 303, and the other side of the tee 302 is plugged with a water pipe 304. The sandblasting group 4 includes a sand cylinder 401, a sand separator 402, a conveyor belt 403, and a sand basin 404. One end of the pipeline group 3 The end is connected with a sand cylinder 401, the upper surface of the sand cylinder 401 is connected with a sand separator 402, one side of the sand separator 402 is connected with a conveyor belt 403, and the other end of the conveyor belt 403 is connected with a sand basin 404. The hydraulic group 5 includes a water supply device 501, a U-shaped tube 502, and a water tank 503. One end of the pipeline group 3 is connected with the water supply device 501, and the lower surface of the water supply device 501 is plugged with a U-shaped tube 502, and the other end of the U-shaped tube 502 is connected with the water tank 503. The injection group 7 includes a guide wheel A701, a box body 702, a hinge 703, a cover 704, a spray gun 705, and a pipe shaft 706. The upper surface of the track 6 is connected with the guide wheel A701, and the upper surface of the guide wheel A701 is connected with the box body 702. The box body 702 is rotatably connected to The cover 704, the interior of the box 702 is connected to the spray gun 705, the interior of the box 702 is plugged into the pipe shaft 706, the maintenance group 8 includes a guide wheel B801, a maintenance base 802, an oil drum 803, and a maintenance brush 804. The upper surface of the track 6 is connected to the guide wheel B801, the upper surface of the guide wheel B801 is sleeved with the maintenance base 802, the interior of the maintenance base 802 is plugged into the oil drum 803, and one end of the maintenance base 802 is connected to the maintenance brush 804. The filter group 10 includes a filter A plate 1001, a filter B plate 1002, and a filter C plate 1003. The interior of the recovery box 9 is provided with a filter A plate 1001, one side of the filter A plate 1001 is provided with a filter B plate 1002, and the other side of the filter B plate 1002 is provided with a filter C plate 1003.

[0036] See also Figure 1-12 , an external independent water mist sandblasting environmental protection device for a double dock barge. During use, the air compressor 201 in the air pressure group 2 compresses the gas into the large T-tube 202, and then enters the interior of the air storage tank 203 along the large T-tube 202. The air storage tank 203 passes the gas inside itself into the cold dryer 205 along the small T-tube 204 to reduce water vapor and other impurities, and then reaches through the pipeline group 3 and is used for spraying with other materials. An air compressor is a device used to compress gas. The air compressor has a similar structure to a water pump. The air storage tank is a device specifically used to store gas. It is a kind of equipment that can stabilize the system pressure. According to the different pressures that the gas tank can withstand, it can be divided into high-pressure gas tanks, low-pressure gas tanks, and normal-pressure gas tanks. The cold dryer is the abbreviation of the refrigerated dryer. The cold dryer is an air source processing component in the pneumatic system that uses new technology. It uses refrigerant and compressed air for heat exchange and reduces the compressed air temperature to a dew point temperature in the range of 2 to 10°C. With the continuous development of the cold dryer industry, more and more companies are entering the air compressor industry, and more and more people are favoring the cold dryer industry. At the same time, many companies stand out.

[0037] The main function of the pipeline group 3 is to connect different equipment for spraying operations. The air pipe 301 is connected to the air pressure group 2, and the tee 302 connects the air pipe 301, the water pipe 304 and the sand pipe 303. The sand pipe 303 is connected to the sandblasting group 4, and the water pipe 304 is connected to the water pressure group 5. This greatly enhances the mixing between multiple different materials and plays a decisive role in different modes of spraying.

[0038] The sandblasting group 4 acts as an automatic loading device. The sand in the sand basin 404 is moved to the inside of the sand separator 402 via the conveyor belt 403. The sand separator 402 then places the sand into four different sand cylinders 401. The sand is then sprayed through the pipe group 3, greatly reducing the physical exertion of human sand transportation and the possibility of various accidents. The sand cylinder body is made of fiberglass, stainless steel, plastic, carbon steel and other materials. The sand cylinder uses special filter sand to eliminate tiny dirt in the pool. The filter sand is used as a medium for removing dirt and is filled in the cavity of the filter. When the control knob is turned to the "FILTER" position, the pool water containing suspended dirt particles is pumped into the filter device by the pump and then guided to the water outlet of the filter by the control switch.

[0039] The first use of the water pressure group 5 is to adjust the size of the spray force by increasing or decreasing the water pressure. The second use is to allow the spray group to perform water spraying and water mist sandblasting to remove rust, which greatly enhances the practicality and use effect. The water supply device 501 draws the water in the water tank 503 to the pipe group 3 through the U-shaped pipe 502 for spraying. These three types of spraying materials can be used for rust removal, as well as for water spraying to clean residues, wind drying of moisture, and other operations.

[0040] The main function of the spray group 7 is to perform rust removal and sandblasting operations on small boats on the ship trough 17. The track 6 facilitates the movement and use of the spray group 7, and is also to prevent the spray group 7 from being corroded by water for a long time and to facilitate movement into the house 16 for use. The guide wheel A701 is for easy movement on the track 6. The box 702, hinge 703 and cover 704 are to prevent water from entering the internal equipment and causing damage. The spray gun 705 and the pipe shaft 706 are used together to perform water mist sandblasting operations, which greatly reduces the embarrassing problem caused by insufficient equipment length and solves the equipment damage caused by long-term water blisters. The spray gun is a device that uses liquid or compressed air to release quickly as power. The spray gun is divided into two types: general pressure type and pressurized type. There are also pressure spray guns, Carle spray guns, and automatic recovery spray guns. The application of the spray gun in the industry can be directly loaded with paint for use, that is, a simple spray gun, which can be installed in automated equipment such as automatic glue spraying machines, automatic glue coating machines, automatic paint spraying machines, coating machines and other spraying equipment.

[0041] The maintenance group 8 moves on the track 6 via the guide wheel B801 during use, and the oil barrel 803 oils the maintenance brush 804 via the maintenance base 802, thereby performing maintenance and oiling operations on the track 6, reducing the possibility of corrosion of the track 6 and being of great help to the spray group 7.

[0042] The effect of the filter group 10 is to filter the sand in the water, so that the sand in the water is washed into the interior of the filter mesh 12 by the water, making it convenient for subsequent recycling and reuse, greatly reducing the waste of resources and pollution to the environment.

[0043] Track 6 is manufactured for ease of use by construction workers and is made of 10CrMoAl. Recovery bin 9 contains numerous devices for water filtration. Pump 11 draws sand from the vicinity of the main body 1 into recovery bin 9 for recovery. Filter 12 releases residual liquid from the sand surface for subsequent recovery. Sprinkler 13 releases filtered water, leaving space for subsequent liquid entry. Cover 14 opens to facilitate sand recovery. Pull ring 15 facilitates opening cover 14. Housing 16 protects internal equipment and reduces moisture erosion. Grooves 17 facilitate rust removal for small boats. 10CrMoAl is a specialized steel resistant to seawater corrosion. 10CrMoAl is an ideal material for piping and machined parts used in coastal power plants, oil fields, natural gas plants, and petrochemical plants to transport water, oil, gas, and seawater-containing media. It is also used to manufacture valve flanges.

[0044] During use, the barge first sinks a certain space due to its own characteristics, which makes it convenient to place the small boat on the ship trough 17, and then the air pressure group 2 creates gas and transmits the gas to the pipe group 3 for spraying. The sand of the sandblasting group 4 and the water of the water pressure group 5 will also enter the pipe group 3 for spraying. At this time, the maintenance group 8 inside the house can be moved outside to maintain the track, and the spray group 7 reaches the required position through the track 6 for spraying. One end of the pipe shaft 706 is connected to the pipe group 3, and the other end is connected to the spray gun for use. The recycling box 9 inside the equipment body 1 starts recycling work, the water pump draws sand and water into the recycling box 9, the filter group 10 filters the useless water, and the sand enters the filter net 12. The sprinkler 13 sprays the excess water to the outside, and the cover 14 prevents people or objects from falling into the recycling box 9, and the pull ring 15 is convenient for moving the cover 14.

[0045] In summary, this is an independent water mist sandblasting environmental protection device external to a double-dock barge. The gas is compressed into the gas tank through a hollow compressor, and then the gas tank puts the gas into the cold dryer for dehydration. The gas is then delivered to the intersection with other equipment through a pipe group. The sand in the sand basin is moved to the inside of the sand separator through a conveyor belt. The sand separator then puts the sand into four different sand cylinders respectively, and then the sand is sprayed through the pipe group. The water supply device pumps the water in the water tank into the pipe group through a U-shaped pipe for spraying. These three types of spraying materials can be used for rust removal, water spraying to clean residues, wind drying, and other operations. The maintenance group is used to maintain the track, so that the subsequent spraying group can be used normally and prevent water from corroding the track, greatly reducing the possibility of track rust. There are pumps and sprayers inside the recovery box, which can pump away the sand and water near the main body of the equipment, and then discharge the filtered water out of the equipment. The remaining sand can be recycled and reused next time.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An external independent water mist sandblasting environmental protection device for a double dock barge, comprising a device body (1), characterized in that: The upper surface of the equipment body (1) is connected to an air pressure group (2), one end of the air pressure group (2) is connected to a pipe group (3), one end of the pipe group (3) is connected to a sandblasting group (4), one end of the pipe group (3) is connected to a water pressure group (5), a track (6) is provided inside the equipment body (1), a spraying group (7) is connected to the upper surface of the track (6), a maintenance group (8) is connected to the upper surface of the track (6), a recovery box (9) is connected inside the equipment body (1), a filter group (10) is provided inside the recovery box (9), a water pump (11) is connected inside the recovery box (9), and a filter screen (12) is plugged into the inside of the recovery box (9). The recycling box (9) is provided with a water sprayer (13) inside, and a cover plate (14) is clamped on the upper surface of the recycling box (9), and a pull ring (15) is provided on the upper surface of the cover plate (14); the air pressure group (2) comprises an air compressor (201), a large T-tube (202), an air storage tank (203), a small T-tube (204), and a cold dryer (205); the upper surface of the equipment body (1) is clamped with the air compressor (201), one side of the air compressor (201) is plugged with the large T-tube (202), the upper surface of the large T-tube (202) is sleeved with the air storage tank (203), one side of the air storage tank (203) is clamped with the small T-tube (204), and the other end of the small T-tube (204) is plugged with the small T-tube (204). The air pressure group (2) is connected to a cold dryer (205); the pipeline group (3) includes an air pipe (301), a tee (302), a sand pipe (303), and a water pipe (304); one end of the air pressure group (2) is connected to the air pipe (301); the other end of the air pipe (301) is connected to the tee (302); one side of the tee (302) is connected to the sand pipe (303); the other side of the tee (302) is connected to the water pipe (304); the sand blasting group (4) includes a sand cylinder (401), a sand separator (402), a conveyor belt (403), and a sand basin (404); one end of the pipeline group (3) is connected to the sand cylinder (401); the upper surface of the sand cylinder (401) is connected to the sand separator (402); ), a conveyor belt (403) is clamped on one side of the sand separator (402), and a sand basin (404) is clamped on the other end of the conveyor belt (403); the spray group (7) comprises a guide wheel A (701), a box (702), a hinge (703), a cover (704), a spray gun (705), and a pipe shaft (706); the upper surface of the track (6) is clamped on the guide wheel A (701), the upper surface of the guide wheel A (701) is sleeved on the box (702), the box (702) is rotatably connected to the cover (704) through the hinge (703), the interior of the box (702) is clamped on the spray gun (705), and the interior of the box (702) is plugged with the pipe shaft (706).

2. The external independent water mist sandblasting environmental protection device for a double-dock barge according to claim 1 is characterized by: The water pressure group (5) comprises a water supply device (501), a U-shaped tube (502), and a water tank (503); one end of the pipe group (3) is sleeved with the water supply device (501); the lower surface of the water supply device (501) is plugged with the U-shaped tube (502); and the other end of the U-shaped tube (502) is sleeved with the water tank (503).

3. The external independent water mist sandblasting environmental protection device for a double-dock barge according to claim 1 is characterized by: The maintenance group (8) comprises a guide wheel B (801), a maintenance base (802), an oil drum (803), and a maintenance brush (804); the guide wheel B (801) is clamped on the upper surface of the track (6); the maintenance base (802) is sleeved on the upper surface of the guide wheel B (801); the oil drum (803) is inserted into the interior of the maintenance base (802); and the maintenance brush (804) is clamped on one end of the maintenance base (802).

4. The external independent water mist sandblasting environmental protection device for a double dock barge according to claim 1 is characterized by: The filter group (10) comprises a filter A plate (1001), a filter B plate (1002), and a filter C plate (1003); the filter A plate (1001) is provided inside the recovery box (9); a filter B plate (1002) is provided on one side of the filter A plate (1001); and a filter C plate (1003) is provided on the other side of the filter B plate (1002).

5. The external independent water mist sandblasting environmental protection device for a double dock barge according to claim 1 is characterized by: A house (16) is provided on the upper surface of the equipment body (1), and a boat trough (17) is provided on the upper surface of the equipment body (1).

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