Construction device for anticorrosive coating of pressure vessel

Abstract

The utility model discloses a construction device for an anticorrosive coating of a pressure vessel, which relates to the technical field of spraying equipment for the anticorrosive coating of the pressure vessel and comprises a bottom plate, a mounting ring, a lower arc-shaped disc, a motor I, a movable cylinder, an upper arc-shaped disc, a storage box, a feeding valve, a conveying pump, a conveying hose, a movable plate, a spraying box, a suction pipe, an impurity suction component and a lifting component, a mounting ring is arranged above the bottom plate, a lower arc-shaped disc is rotatably arranged on the inner side of the mounting ring, a first motor is vertically arranged on the upper surface of the bottom plate, the end of an output shaft of the first motor is fixedly connected with the lower arc-shaped disc, a lifting assembly is arranged on the upper surface of the bottom plate, and a movable plate is movably arranged on the lifting assembly. A movable cylinder is arranged on the movable plate, and the upper end and the lower end of the movable cylinder are open. The device has the advantage that impurities on the outer surface of the pressure vessel can be cleaned before an anti-corrosion coating is sprayed.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel anti-corrosion coating spraying equipment, in particular to a pressure vessel anti-corrosion coating construction device. Background Art

[0002] Pressure vessels refer to closed equipment that contains gas or liquid and bears a certain pressure. Pressure vessels are widely used and play an important role in many sectors such as industry, civil industry, military industry, and many fields of scientific research. They are most widely used in the chemical industry and petrochemical industry. After the pressure vessel is processed, it is necessary to spray an anti-corrosion coating on the outer surface of the pressure vessel to enhance the anti-corrosion ability of the pressure vessel.

[0003] The utility model patent with patent publication number CN211964749U discloses a surface anti-corrosion spraying device for pressure vessel production, including a fixed seat and a spraying mechanism, a storage box is arranged on the upper end surface of the fixed seat, a feed pipe is arranged on the upper end of one side of the storage box, a guide pipe is arranged on the upper end of the storage box, support rods are arranged on both sides of the storage box on the upper end surface of the fixed seat, a mounting plate is arranged on the upper end of the support rod, a spray box is arranged on the upper end surface of the mounting plate, a sealing cover is arranged on the upper end of the spray box through an opening, a power box is arranged on one side of the lower end surface inside the spray box, and a charging interface is arranged at the lower end of one side of the spray box.

[0004] However, a surface anti-corrosion spraying device for pressure vessel production in the prior art still has shortcomings during use: the pressure vessel may be placed directly on the ground in a horizontal state before spraying the anti-corrosion coating, so the outer surface of the pressure vessel may be stained with some fine particulate impurities. The above scheme cannot clean the impurities on the surface of the pressure vessel before spraying the anti-corrosion coating on the outer surface of the pressure vessel. When there are impurities on the surface of the pressure vessel, it will affect the effect of spraying the anti-corrosion coating, thereby reducing the anti-corrosion effect. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a pressure vessel anti-corrosion coating construction device to solve the problems raised in the above background technology. The utility model has the advantage of being able to clean impurities on the outer surface of the pressure vessel before spraying the anti-corrosion coating.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure vessel anti-corrosion coating construction device, comprising a base plate, a mounting ring, a lower arc disk, a motor 1, a movable cylinder, an upper arc disk, a material storage box, a feed valve, a delivery pump, a delivery hose, a movable plate, a spray box, a suction pipe, an impurity suction assembly and a lifting assembly, wherein a mounting ring is arranged above the base plate, a lower arc disk is rotatably arranged on the inner side of the mounting ring, a motor 1 is vertically arranged on the upper surface of the base plate, and the output shaft end of the motor 1 is fixedly connected to the lower arc disk, a lifting assembly is arranged on the upper surface of the base plate, and a movable plate is movably arranged on the lifting assembly, a movable cylinder is arranged on the movable plate, and the upper and lower ends of the movable cylinder are opened, and a movable cylinder rotatably arranged at the upper end opening of the movable cylinder The upper arc-shaped disk corresponds to the matching disk, a spray box is arranged on the inner side of the movable cylinder, and nozzles are evenly arranged on the spray box at equal distances, a delivery hose is arranged on the spray box, and the delivery hose passes through the movable cylinder, a storage box is arranged on the upper surface of the bottom plate, a feed valve is arranged at the feed port on the storage box, a suction pipe is vertically arranged inside the storage box, and the suction pipe passes through the upper surface of the storage box, the upper end of the suction pipe is connected to the suction port of the delivery pump, and the discharge port of the delivery pump is connected to the end of the delivery hose, an impurity suction assembly is arranged on the movable cylinder, when it is necessary to spray an anti-corrosion coating on the outer surface of the pressure vessel, the anti-corrosion coating is added into the storage box through the feed valve, and the initial position of the movable cylinder is at a position that does not affect the placement of the pressure vessel. The pressure vessel is placed vertically on the lower arc-shaped plate. After the placement is completed, the motor 2 starts working, the output shaft of the motor 2 drives the lifting screw to rotate, the lifting screw drives the movable plate to slide downward along the guide column, and the movable plate drives the movable cylinder to move downward until the movable cylinder moves downward to the position in contact with the mounting ring, and then the motor 2 is turned off. The upper arc-shaped plate fits tightly with the upper end of the pressure vessel, and the pressure vessel is completely inside the movable cylinder. At this time, it is necessary to clean the impurities on the outer surface of the pressure vessel first, the electric telescopic rod extends a certain distance, and the electric telescopic rod drives the suction nozzle to move a certain distance toward the pressure vessel, and the suction nozzle drives the L-shaped movable tube to move, and the suction nozzle also drives the scraper to move, so that the scraper just moves to the position in contact with the outer surface of the pressure vessel. At this time, turn on the air pump, and the air pump collects the impurities in the box. The air inside is sucked out, so that negative pressure is formed inside the collection box, and at the same time, motor 1 is turned on, and the output shaft of motor 1 drives the lower arc disk to rotate, and the lower arc disk drives the pressure vessel to rotate, and the pressure vessel drives the upper arc disk to rotate. Since the outer surface of the pressure vessel is in close contact with the scraper bar at this time, the scraper bar can scrape the impurities on the outer surface of the pressure vessel while the pressure vessel is rotating, and the scraped impurities will be sucked into the suction nozzle, and the sucked impurities enter the collection box through the L-shaped movable tube and the connecting hose. After the impurities on the outer surface of the pressure vessel are cleaned, the electric telescopic rod is shortened a certain distance, and the electric telescopic rod drives the suction nozzle to move away from the pressure vessel until the scraper bar is separated from the pressure vessel. At this time, the outer surface of the pressure vessel can be sprayed with an anti-corrosion coating, and the delivery pump is turned on.The delivery pump sucks out the anti-corrosion coating inside the storage box through the suction pipe, and delivers the sucked anti-corrosion coating to the spray box through the delivery hose. The spray box sprays the anti-corrosion coating to the outer surface of the rotating pressure vessel through the nozzle until the outer surface of the pressure vessel is completely sprayed. Then, the delivery pump and the motor are turned off to complete the anti-corrosion coating construction of the pressure vessel. When it is necessary to clean the impurities inside the collection box, the lock is opened so that the detachable cover plate can be removed from the collection box, so that the opening on the side of the collection box is opened, so that the impurities inside the collection box can be easily cleaned out.

[0007] Furthermore, an electric telescopic rod is horizontally arranged on the outer side of the movable cylinder, and one end of the electric telescopic rod passes through the movable cylinder, and a suction nozzle is vertically arranged on the end of the electric telescopic rod inside the movable cylinder, an L-shaped movable tube is arranged at the air outlet on the suction nozzle, and the L-shaped movable tube passes through the movable cylinder, a collecting box is arranged on the upper surface of the bottom plate, a side opening of the collecting box is provided, and a detachable cover is installed at the side opening of the collecting box through a lock, the lower end of the L-shaped movable tube is connected to the inside of the collecting box through a connecting hose, an exhaust pipe is arranged at the air outlet at the upper end of the collecting box, an air pump is arranged at the upper end of the exhaust pipe, and the air intake of the air pump is connected to the exhaust pipe, and the impurities on the outer surface of the pressure vessel can be absorbed by utilizing the mutual cooperation among the electric telescopic rod, the L-shaped movable tube, the connecting hose, the air pump, the exhaust pipe, the detachable cover, the lock, the collecting box and the suction nozzle.

[0008] Furthermore, a scraper is provided on the suction nozzle, and the scraper is located on the central axis of the suction nozzle, and the scraper can conveniently scrape away impurities on the outer surface of the pressure vessel.

[0009] Furthermore, a filter screen is provided at the lower end of the air extraction pipe, and the filter screen at the lower end of the air extraction pipe serves to prevent impurities from entering the air pump.

[0010] Furthermore, the outer side of the movable cylinder is fixedly connected to the electric telescopic rod via a mounting plate, and the mounting plate plays a role in supporting the electric telescopic rod.

[0011] Furthermore, a second motor is vertically arranged on the base plate, a lifting screw is arranged at the end of the output shaft of the second motor, the lifting screw passes through the movable plate, and the lifting screw is threadedly connected to the movable plate, and a guide column passing through the movable plate is vertically arranged on the base plate. By utilizing the mutual cooperation between the guide column, the lifting screw and the second motor, the movable plate can be driven to slide up and down, and the movable plate can drive the movable cylinder to move up and down.

[0012] Furthermore, the opposite sides of the lower arc-shaped disk and the upper arc-shaped disk are both provided with anti-skid strips, which are soft and can increase the friction between the lower arc-shaped disk, the upper arc-shaped disk and the pressure vessel.

[0013] Furthermore, the base plate is fixedly connected to the mounting ring via a vertical support plate, and the vertical support plate serves to support the mounting ring.

[0014] Based on the above technical solution, the utility model of a pressure vessel anti-corrosion coating construction device has achieved the following beneficial effects after practical application:

[0015] The utility model utilizes the mutual cooperation among the electric telescopic rod, the suction nozzle and the scraper strip, and the electric telescopic rod drives the suction nozzle to move a certain distance toward the pressure vessel, and the suction nozzle drives the scraper strip to move, so that the scraper strip just moves to the position in contact with the outer surface of the pressure vessel. At this time, the air pump is turned on, and the air pump sucks out the air inside the collection box, so that negative pressure is formed inside the collection box, and at the same time, the motor one is turned on, and the output shaft of the motor one drives the lower arc disk to rotate, and the lower arc disk drives the pressure vessel to rotate, and the pressure vessel drives the upper arc disk to rotate. Since the outer surface of the pressure vessel is in close contact with the scraper strip at this time, the scraper strip can scrape off impurities on the outer surface of the pressure vessel while the pressure vessel rotates, and the scraped impurities will be sucked by the suction nozzle, and the sucked impurities enter the collection box through the L-shaped movable tube and the connecting hose, so that the impurities on the outer surface of the pressure vessel can be cleaned and collected before spraying, so as to avoid affecting the effect of the spraying anti-corrosion coating and improve the anti-corrosion effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model.

[0017] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model when viewed from above.

[0019] Figure 4 It is a schematic diagram of the main three-dimensional structure of the material storage box in the spray assembly of the utility model after being cut open.

[0020] Figure 5 This is a schematic diagram of the main three-dimensional structure of the impurity absorption and removal component of the utility model.

[0021] Figure 6 This is a schematic diagram of the main stereoscopic structure of the utility model after the pressure vessel is installed.

[0022] In the figure: 1 bottom plate, 2 vertical support plate, 3 mounting ring, 4 lower arc disk, 5 motor 1, 6 anti-skid strip, 7 movable cylinder, 8 upper arc disk, 9 guide column, 10 lifting screw, 11 storage box, 12 feed valve, 13 delivery pump, 14 delivery hose, 15 electric telescopic rod, 16 mounting plate, 17 L-shaped movable tube, 18 connecting hose, 19 air pump, 20 exhaust pipe, 21 detachable cover plate, 22 lock, 23 collection box, 24 motor 2, 25 movable plate, 26 spray box, 27 suction nozzle, 28 scraper strip, 29 suction pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6The present embodiment provides a technical solution: a pressure vessel anti-corrosion coating construction device, including a bottom plate 1, a mounting ring 3, a lower arc disk 4, a motor 5, a movable cylinder 7, an upper arc disk 8, a material storage box 11, a feed valve 12, a delivery pump 13, a delivery hose 14, a movable plate 25, a spray box 26, a suction pipe 29, an impurity suction assembly and a lifting assembly. A mounting ring 3 is arranged above the bottom plate 1, and a lower arc disk 4 is rotatably arranged inside the mounting ring 3. A motor 5 is vertically arranged on the upper surface of the bottom plate 1, and the end of the output shaft of the motor 5 is fixedly connected to the lower arc disk 4. A lifting assembly is arranged on the upper surface of the bottom plate 1, and a movable plate 25 is movably arranged on the lifting assembly, and a movable cylinder 7 is arranged on the movable plate 25, and the upper and lower ends of the movable cylinder 7 are opened. An upper arc disk 8 corresponding to the lower arc disk 4 is rotatably provided at the upper opening of the movable cylinder 7, a spray box 26 is provided on the inner side of the movable cylinder 7, and nozzles are evenly arranged on the spray box 26 at equal distances, a delivery hose 14 is provided on the spray box 26, and the delivery hose 14 passes through the movable cylinder 7, a storage box 11 is provided on the upper surface of the bottom plate 1, a feed valve 12 is provided at the feed inlet of the storage box 11, a suction pipe 29 is vertically provided inside the storage box 11, and the suction pipe 29 passes through the upper surface of the storage box 11, the upper end of the suction pipe 29 is connected to the suction port of the delivery pump 13, and the discharge port of the delivery pump 13 is connected to the end of the delivery hose 14, and an impurity suction component is provided on the movable cylinder 7. When it is necessary to spray anti-corrosion on the outer surface of the pressure vessel During coating, the anti-corrosion coating is added into the storage box 11 through the feed valve 12. The initial position of the movable cylinder 7 is in a position that does not affect the placement of the pressure vessel. The pressure vessel is placed vertically on the lower arc-shaped plate 4. After the placement is completed, the motor 24 works, and the output shaft of the motor 24 drives the lifting screw 10 to rotate. The lifting screw 10 drives the movable plate 25 to slide downward along the guide column 9, and the movable plate 25 drives the movable cylinder 7 to move downward until the movable cylinder 7 moves downward to the position in contact with the mounting ring 3. Then, the motor 24 is turned off, and the upper arc-shaped plate 8 is tightly fitted with the upper end of the pressure vessel. The pressure vessel is completely inside the movable cylinder 7. At this time, it is necessary to clean the impurities on the outer surface of the pressure vessel first, and the electric telescopic rod 15 is extended a certain distance. The retracted rod 15 drives the suction nozzle 27 to move a certain distance toward the pressure vessel, and the suction nozzle 27 drives the L-shaped movable tube 17 to move. The suction nozzle 27 also drives the scraper 28 to move, so that the scraper 28 just moves to the position in contact with the outer surface of the pressure vessel. At this time, the air pump 19 is turned on, and the air pump 19 sucks out the air inside the collection box 23, so that a negative pressure is formed inside the collection box 23. At the same time, the motor 15 is turned on, and the output shaft of the motor 15 drives the lower arc disk 4 to rotate, and the lower arc disk 4 drives the pressure vessel to rotate, and the pressure vessel drives the upper arc disk 8 to rotate. Since the outer surface of the pressure vessel is in close contact with the scraper 28 at this time, the scraper 28 can scrape off the impurities on the outer surface of the pressure vessel while the pressure vessel rotates, and the scraped impurities will be sucked in by the suction nozzle 27.The impurities sucked in pass through the L-shaped movable tube 17 and the connecting hose 18 and enter the collecting box 23. After the impurities on the outer surface of the pressure vessel are cleaned, the electric telescopic rod 15 is shortened by a certain distance, and the electric telescopic rod 15 drives the suction nozzle 27 to move away from the pressure vessel until the scraper 28 is separated from the pressure vessel. At this time, the anti-corrosion coating can be sprayed on the outer surface of the pressure vessel, and the delivery pump 13 is turned on. The delivery pump 13 sucks out the anti-corrosion coating inside the storage box 11 through the suction pipe 29, and the sucked out anti-corrosion coating is passed through the delivery hose 1 4 is transported to the spray box 26, and the spray box 26 sprays the anti-corrosion coating onto the outer surface of the rotating pressure vessel through the nozzle until the outer surface of the pressure vessel is completely sprayed, and then the delivery pump 13 is turned off, and the motor 5 is turned off, so that the anti-corrosion coating construction of the pressure vessel is completed. When it is necessary to clean the impurities inside the collection box 23, the lock 22 is opened, so that the detachable cover plate 21 can be removed from the collection box 23, so that the opening on the side of the collection box 23 is opened, so as to facilitate the cleaning of the impurities inside the collection box 23.

[0025] Furthermore, an electric telescopic rod 15 is horizontally arranged on the outer side of the movable cylinder 7, and one end of the electric telescopic rod 15 passes through the movable cylinder 7, a suction nozzle 27 is vertically arranged on the end of the electric telescopic rod 15 inside the movable cylinder 7, an L-shaped movable tube 17 is arranged at the air outlet on the suction nozzle 27, and the L-shaped movable tube 17 passes through the movable cylinder 7, a collecting box 23 is arranged on the upper surface of the bottom plate 1, a side opening of the collecting box 23, and a detachable cover plate 21 is installed at the side opening of the collecting box 23 through a lock buckle 22, the lower end of the L-shaped movable tube 17 is connected to the inside of the collecting box 23 through a connecting hose 18, an exhaust pipe 20 is arranged at the air outlet of the upper end of the collecting box 23, an air pump 19 is arranged at the upper end of the exhaust pipe 20, and the air inlet of the air pump 19 is connected to the exhaust pipe 20. The air pipe 20 is connected and communicates with each other. By utilizing the cooperation between the electric telescopic rod 15, the L-shaped movable tube 17, the connecting hose 18, the air pump 19, the exhaust pipe 20, the detachable cover 21, the lock 22, the collection box 23 and the suction nozzle 27, the impurities on the outer surface of the pressure vessel can be absorbed; a scraper 28 is provided on the suction nozzle 27, and the scraper 28 is on the central axis of the suction nozzle 27, and the scraper 28 can conveniently scrape the impurities on the outer surface of the pressure vessel; a filter is provided at the lower end of the exhaust pipe 20, and the filter at the lower end of the exhaust pipe 20 serves to prevent impurities from entering the air pump 19; the outer side of the movable cylinder 7 is fixedly connected to the electric telescopic rod 15 through the mounting plate 16, and the mounting plate 16 serves to support the electric telescopic rod 15.

[0026] Furthermore, a motor 24 is vertically arranged on the base plate 1, and a lifting screw 10 is arranged on the end of the output shaft of the motor 24. The lifting screw 10 passes through the movable plate 25, and the lifting screw 10 is threadedly connected to the movable plate 25. A guide column 9 passing through the movable plate 25 is vertically arranged on the base plate 1. By utilizing the mutual cooperation between the guide column 9, the lifting screw 10 and the motor 24, the movable plate 25 can be driven to slide up and down, and the movable plate 25 can drive the movable cylinder 7 to move up and down.

[0027] Furthermore, anti-slip strips 6 are provided on the opposite sides of the lower arc disk 4 and the upper arc disk 8. The anti-slip strips 6 are soft and can increase the friction between the lower arc disk 4 and the upper arc disk 8 and the pressure vessel; the bottom plate 1 is fixedly connected to the mounting ring 3 through the vertical support plate 2, and the vertical support plate 2 plays a role in supporting the mounting ring 3; the motor 1 5, feed valve 12, delivery pump 13, electric telescopic rod 15, air pump 19, lock 22 and motor 2 24 mentioned in this specification are all mature technologies in the prior art, and their specific structures and working principles will not be explained in detail one by one.

[0028] The working principle of the pressure vessel anti-corrosion coating construction device provided by the utility model is as follows: when it is necessary to spray the anti-corrosion coating on the outer surface of the pressure vessel, the anti-corrosion coating is added into the storage box 11 through the feed valve 12, the initial position of the movable cylinder 7 is in a position that does not affect the placement of the pressure vessel, the pressure vessel is placed vertically on the lower arc plate 4, and after the placement is completed, the motor 24 works, the output shaft of the motor 24 drives the lifting screw 10 to rotate, the lifting screw 10 drives the movable plate 25 to slide downward along the guide column 9, and the movable plate 25 drives the movable cylinder 7 to move downward until the movable cylinder 7 moves downward to the position in contact with the mounting ring 3, the motor 24 is turned off, and the upper arc plate 8 fits tightly with the upper end of the pressure vessel, and the pressure vessel is completely inside the movable cylinder 7. At this time, it is necessary to clean the impurities on the outer surface of the pressure vessel first, and the electric telescopic rod 15 extends a certain distance, and the electric telescopic rod 15 drives the suction nozzle 27 to move a certain distance toward the pressure vessel, and the suction nozzle 27 drives the L-shaped movable tube 17 to move, and the suction nozzle 27 also drives the scraper 28 to move, so that the scraper 28 just moves to the position in contact with the outer surface of the pressure vessel. At this time, turn on the air pump 19, the air pump 19 sucks out the air inside the collection box 23, so that negative pressure is formed inside the collection box 23, and at the same time turn on the motor 5, and the output shaft of the motor 5 drives the lower arc disk 4 to rotate, and the lower arc disk 4 drives The pressure vessel rotates, and the pressure vessel drives the upper arc disk 8 to rotate. Since the outer surface of the pressure vessel is in close contact with the scraper 28 at this time, the scraper 28 can scrape the impurities on the outer surface of the pressure vessel while the pressure vessel rotates. The scraped impurities will be sucked by the suction nozzle 27, and the sucked impurities will enter the collection box 23 through the L-shaped movable tube 17 and the connecting hose 18. After the impurities on the outer surface of the pressure vessel are cleaned, the electric telescopic rod 15 is shortened by a certain distance, and the electric telescopic rod 15 drives the suction nozzle 27 to move away from the pressure vessel until the scraper 28 is separated from the pressure vessel. At this time, the anti-corrosion coating can be sprayed on the outer surface of the pressure vessel, and the delivery pump 1 is turned on. 3. The delivery pump 13 sucks out the anti-corrosion coating inside the storage box 11 through the suction pipe 29, and delivers the sucked anti-corrosion coating to the spray box 26 through the delivery hose 14. The spray box 26 sprays the anti-corrosion coating onto the outer surface of the rotating pressure vessel through the nozzle until the outer surface of the pressure vessel is completely sprayed. Then, the delivery pump 13 is turned off, and the motor 5 is turned off to complete the anti-corrosion coating construction of the pressure vessel. When it is necessary to clean the impurities inside the collection box 23, the lock 22 is opened so that the detachable cover 21 can be removed from the collection box 23, so that the opening on the side of the collection box 23 is opened, thereby facilitating the cleaning of the impurities inside the collection box 23.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pressure vessel anticorrosion coating construction device, characterized in that: The invention comprises a bottom plate (1), a mounting ring (3), a lower arc-shaped disk (4), a motor (5), a movable cylinder (7), an upper arc-shaped disk (8), a material storage box (11), a feed valve (12), a delivery pump (13), a delivery hose (14), a movable plate (25), a spray box (26), a suction pipe (29), an impurity suction assembly and a lifting assembly, wherein a mounting ring (3) is arranged above the bottom plate (1), a lower arc-shaped disk (4) is rotatably arranged inside the mounting ring (3), a motor (5) is vertically arranged on the upper surface of the bottom plate (1), and the output shaft end of the motor (5) is fixedly connected to the lower arc-shaped disk (4), a lifting assembly is arranged on the upper surface of the bottom plate (1), and a movable plate (25) is movably arranged on the lifting assembly, a movable cylinder (7) is arranged on the movable plate (25), and the upper and lower ends of the movable cylinder (7) are opened, and the movable cylinder (7) ) is rotatably provided at the upper end opening of the movable cylinder (7) so as to correspond to the lower arc disk (4); a spray box (26) is provided inside the movable cylinder (7), and nozzles are evenly and evenly provided on the spray box (26); a delivery hose (14) is provided on the spray box (26), and the delivery hose (14) passes through the movable cylinder (7); a material storage box (11) is provided on the upper surface of the bottom plate (1); a feed valve (12) is provided at the feed inlet on the material storage box (11); a suction pipe (29) is vertically provided inside the material storage box (11), and the suction pipe (29) passes through the upper surface of the material storage box (11); the upper end of the suction pipe (29) is connected to the suction port of the delivery pump (13); the discharge port of the delivery pump (13) is connected to the end of the delivery hose (14); and an impurity suction component is provided on the movable cylinder (7).

2. The pressure vessel anticorrosion coating construction device according to claim 1, characterized in that: An electric telescopic rod (15) is horizontally arranged on the outer side of the movable cylinder (7), and one end of the electric telescopic rod (15) passes through the movable cylinder (7); a suction nozzle (27) is vertically arranged at the end of the electric telescopic rod (15) inside the movable cylinder (7); an L-shaped movable tube (17) is arranged at the air outlet of the suction nozzle (27), and the L-shaped movable tube (17) passes through the movable cylinder (7); a collection box (23) is arranged on the upper surface of the bottom plate (1), and the collection box The collecting box (23) has a side opening, and a detachable cover plate (21) is installed at the side opening of the collecting box (23) via a lock buckle (22); the lower end of the L-shaped movable tube (17) is connected to the inside of the collecting box (23) via a connecting hose (18); an exhaust pipe (20) is provided at the air outlet at the upper end of the collecting box (23); an air pump (19) is provided at the upper end of the exhaust pipe (20), and the air intake port of the air pump (19) is connected to the exhaust pipe (20).

3. The pressure vessel anticorrosion coating construction device according to claim 2, characterized in that: The suction nozzle (27) is provided with a scraper strip (28), and the scraper strip (28) is located on the central axis of the suction nozzle (27).

4. The pressure vessel anticorrosion coating construction device according to claim 3 is characterized by: A filter screen is provided at the lower end of the air extraction pipe (20).

5. The pressure vessel anticorrosion coating construction device according to claim 4, characterized in that: The outer side of the movable cylinder (7) is fixedly connected to the electric telescopic rod (15) via a mounting plate (16).

6. The pressure vessel anticorrosion coating construction device according to claim 1, characterized in that: A second motor (24) is vertically arranged on the bottom plate (1), a lifting screw (10) is arranged at the end of the output shaft of the second motor (24), the lifting screw (10) passes through the movable plate (25), and the lifting screw (10) is threadedly connected to the movable plate (25), and a guide column (9) is vertically arranged on the bottom plate (1) and passes through the movable plate (25).

7. The pressure vessel anticorrosion coating construction device according to claim 1, characterized in that: The lower arc-shaped disc (4) and the upper arc-shaped disc (8) are both provided with anti-slip strips (6) on opposite sides thereof.

8. The pressure vessel anticorrosion coating construction device according to claim 1, characterized in that: The base plate (1) is fixedly connected to the mounting ring (3) via a vertical support plate (2).

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