Preparation device and preparation process for anti-corrosion coating of marine steel structure

Abstract

The invention relates to the technical field of anti-corrosion coating preparation, in particular to a marine steel structure anti-corrosion coating preparation device and a preparation technology.The marine steel structure anti-corrosion coating preparation device comprises a mixer, the mixer stirs marine steel structure anti-corrosion coating raw materials fed internally, a feeding opening is fixedly formed in the top of the mixer, and a material storage cavity is formed in the feeding opening; a plurality of partition plates are fixed in the material storage cavity, an additive storage groove is formed between every two adjacent partition plates, and a first material dispersing opening is formed in the bottom of each additive storage groove; the device has the beneficial effects that the functions of raw material feeding, additive storage and dynamic feeding are achieved through the feeding port, the equipment disassembly and assembly frequency is reduced, and the pollution risk is reduced. A plurality of additive storage grooves are formed in the feeding opening, physical isolation of different additives is achieved through partition plates, and cross contamination is avoided. The bottom of each storage groove is provided with a first material dispersing opening and a first blocking ball, independent feeding of additives is controlled by screwing a first handle, and the requirement for adding different components in stages in the coating preparation process is met.

Description

Technical Field

[0001] This invention relates to the field of anti-corrosion coating preparation technology, specifically to an apparatus and process for preparing anti-corrosion coatings for marine steel structures. Background Technology

[0002] In the field of marine engineering, steel structures are exposed to high-salt, high-humidity, and highly corrosive marine environments for extended periods, making them highly susceptible to electrochemical and chemical corrosion. This leads to decreased structural strength, shortened service life, and even safety accidents. Therefore, anti-corrosion coating technology for marine steel structures is one of the core means to ensure the safe operation of marine facilities.

[0003] Traditional anti-corrosion coating preparation equipment suffers from the following technical drawbacks: While some devices support step-by-step feeding, frequent opening of the lid is required, easily introducing impurities and contaminating the mixture, thus disrupting the pressure balance within the mixing chamber and affecting coating uniformity. The feeding port is used only as a raw material inlet, lacking integrated design and unable to simultaneously meet the requirements for independent storage, precise dispensing, and pressure control of multiple additives. Additive replenishment requires equipment shutdown and disassembly, extending the production cycle and making it unsuitable for large-scale industrial applications. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and process for preparing anti-corrosion coatings for marine steel structures, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a marine steel structure anti-corrosion coating preparation device, comprising a mixer, wherein the mixer stirs the marine steel structure anti-corrosion coating raw materials fed inside, a feeding port is fixedly installed on the top of the mixer, a storage chamber is provided inside the feeding port, a plurality of partitions are fixed inside the storage chamber, an additive storage tank is formed between two adjacent partitions, a dispensing port is opened at the bottom of the additive storage tank, and additives are stored inside the additive storage tank, a sealing frame is inserted into the top of the feeding port, the additives are stored inside the sealing frame, a rubber cover is provided on the top surface of the sealing frame, and the rubber cover is unfolded and turned outward to cover the top of the feeding port.

[0006] Preferably, the material storage cavity is in the shape of an annular groove. Guide rings are fixed at both the inner ring and the outer ring of the bottom surface of the material storage cavity. The two guide rings have different sizes. The guide ring is an annular plate with a right-angled triangle cross-section. There are multiple first material dispersion openings, and the first material dispersion openings and the partition are distributed alternately. A first plugging ball is inserted into the interior of the first material dispersion opening. The diameter of the first plugging ball is greater than the top diameter of the first material dispersion opening. A first screw rod is fixed to the top end of the first plugging ball. The first screw rod penetrates through the top surface of the mixer. A thread sleeve is sleeved and screwed on the rod body of the first screw rod. The thread sleeve is fixed to the top surface of the feeding port. A first handle is fixed to the top end of the first screw rod. An installation opening is formed on the surface of the first handle. A sealing block is inserted and screwed into the interior of the installation opening. A through hole is formed on the bottom surface of the installation opening. The bottom end of the through hole penetrates through the first screw rod and the first plugging ball. A second rubber pad is fixed to the bottom surface of the sealing block. A first cross-shaped screwing handle is fixed to the top surface of the sealing block.

[0007] Preferably, multiple supplementary material openings are formed at the top of the inner ring surface of the feeding port. The supplementary material openings correspond to the additive storage tanks one by one. A sealing plate is hinged to the bottom surface of the supplementary material opening. The sealing plate is in the shape of an "L"-shaped plate structure. A first rubber pad is fixed to one end of the sealing plate. The first rubber pad is clamped between the supplementary material opening and the sealing plate. Rubber strips are fixed to both sides of the bottom end of the sealing plate. One side of the rubber strip is fixed to the bottom surface of the supplementary material opening. A screwing groove is formed on the surface of the supplementary material opening. An edge groove is formed on the inner ring surface of the sealing plate. A hand-screwing screw rod is screwed on the surface of the edge groove. The hand-screwing screw rod penetrates through the sealing plate and is screwed into the screwing groove.

[0008] Preferably, the cover frame is a hollow "convex"-shaped circular frame. The top plate of the cover frame overlaps on the top surface of the feeding port. A rubber ring is sleeved and fixed at the bottom end of the cover frame. The rubber ring is elastically deformed when clamped between the cover frame and the feeding port. External threads are provided on the outer wall of the bottom of the cover frame. Internal threads are provided on the inner wall of the feeding port. The internal threads are below the supplementary material openings. The internal threads and the external threads are in mating connection; a second material dispersion opening is formed on the bottom plate of the cover frame. A second plugging ball is inserted into the interior of the second material dispersion opening. The diameter of the second plugging ball is greater than the diameter of the second material dispersion opening. A second screw rod is fixed to the top of the second plugging ball. The second screw rod penetrates through and is screwed on the top plate of the cover frame. A second handle is fixed to the top surface of the second screw rod. A pressure relief valve is inserted and fixed on the top plate of the cover frame. A reserved opening is formed on the top plate of the cover frame. The reserved opening is an inverted "convex"-shaped circular opening. A sealing block is inserted and screwed into the interior of the reserved opening. A second cross-shaped screwing handle is fixed to the top surface of the sealing block.

[0009] Preferably, a storage groove is formed on the top surface of the cover frame. The storage groove is in the shape of an annular groove. One end of the rubber cover is fixed in the storage groove. The other end of the rubber cover is fixed with a rubber ring. The rubber ring is sleeved in a card slot. The card slot is in the shape of an annular groove. The card slot is formed on the outer ring surface of the feeding port.

[0010] A preparation process for an anti-corrosion coating for marine steel structures is carried out using a preparation device for an anti-corrosion coating for marine steel structures. The preparation process includes the following steps: Multiple additives are pre-placed in several additive storage tanks, with the additive with the largest usage stored in a capping rack. The capping rack is then removed from the top of the feeding port, and the raw material for the marine steel structure anti-corrosion coating is fed into the mixer through the feeding port. The capping rack is then replaced on top of the feeding port. After the mixer is started, it mixes the marine steel structure anti-corrosion coating inside. During the mixing process, the additives in the additive storage tanks are fed into the mixer through the corresponding discharge port one, and the additives in the capping rack are fed into the mixer through the discharge port two, thus enabling the addition of multiple additives into the mixer without opening the cap.

[0011] Preferably, when adding additives into the additive storage tank, turn handle one, and handle one drives screw one to slide up along the threaded sleeve. Screw one pulls the sealing ball one upward, and the sealing ball one no longer blocks the discharge port. The additives inside the additive storage tank fall into the mixer through the discharge port. After the sealing block is screwed out from the installation port, the air pressure inside the additive storage tank is adjusted by the perforation. Turning screw one back will push the sealing ball down to block the discharge port one, thus sealing the bottom of the additive storage tank.

[0012] Preferably, when adding additives into the additive storage tank, first unscrew the hand screw from the screw groove, then move the sealing plate to open the feeding port, add the additives into the additive storage tank through the feeding port, then pull the sealing plate back to block the feeding port, and fix the sealing plate in the feeding port through the screw groove.

[0013] Preferably, after the sealing block is unscrewed from the reserved port, the additive is put into the sealing frame, and then the sealing block is screwed back into the reserved port. When the sealing frame seals the top of the feeding port, the second screw is screwed on the handle to lift the second screw, and the second screw drives the second sealing ball to move synchronously. The additive inside the sealing frame falls into the mixer through the second dispensing port.

[0014] Preferably, the rubber cover is pulled out of the storage tank and turned outward. The turned-out rubber cover is placed on the top of the feeding port, and the rubber ring is pushed into the slot. At this time, the rubber cover protects the top of the multiple screws.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The marine steel structure anti-corrosion coating preparation device and process proposed in this invention utilizes a feeding port that integrates raw material feeding, additive storage, and dynamic dispensing functions, reducing equipment disassembly and assembly frequency and lowering the risk of contamination. Multiple additive storage tanks are installed inside the feeding port, with partitions providing physical isolation between different additives to prevent cross-contamination. Each storage tank has a dispensing inlet and a sealing ball at its bottom, and the independent dispensing of additives is controlled by turning a handle, meeting the needs of adding different components in stages during the coating preparation process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 for Figure 2 Sectional view of the structure at point AA; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This is a schematic diagram of the connection structure between the feeding port and the sealing frame of the present invention; Figure 7 This is a schematic diagram of the feeding port structure of the present invention; Figure 8 This is a schematic diagram of the connection structure between the sealing ball and the screw of the present invention; Figure 9 This is a schematic diagram of the sealing plate structure of the present invention; Figure 10 This is a schematic diagram of the capping frame structure of the present invention; Figure 11 for Figure 6 Side view of the middle structure; Figure 12 for Figure 11 Cross-sectional view of the structure at point BB.

[0017] In the diagram: 1. Mixer; 2. Feeding port; 3. Storage chamber; 4. Guide ring; 5. Baffle plate; 6. Feeding port; 7. Sealing plate; 8. Rubber pad 1; 9. Screw groove; 10. Side groove; 11. Hand-tightening screw; 12. Rubber strip; 13. Discharge port 1; 14. Sealing ball 1; 15. Screw 1; 16. Handle 1; 17. Mounting port; 18. Sealing block; 19. Rubber pad 2; 20. Perforation; 21. Threaded sleeve; 22. Cover frame; 23. Discharge port 2; 24. Sealing ball 2; 25. Screw 2; 26. Handle 2; 27. Pressure relief valve; 28. Reserved port; 29. ​​Sealing block; 30. Storage groove; 31. Rubber cover; 32. Rubber ring; 33. Slot; 34. Rubber ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1, please refer to Figures 1 to 12This invention provides a technical solution: a marine steel structure anti-corrosion coating preparation device, including a mixer 1. The mixer 1 stirs the marine steel structure anti-corrosion coating raw materials added inside. A feeding port 2 is fixedly installed on the top of the mixer 1. The feeding port 2 has a storage chamber 3 inside. Multiple partitions 5 are fixed inside the storage chamber 3. An additive storage tank is formed between two adjacent partitions 5. A dispensing port 13 is opened at the bottom of the additive storage tank, and the additive is stored inside the additive storage tank. The storage chamber 3 is an annular tank. Guide rings 4 are fixed at both the inner and outer rings of the bottom surface of the storage chamber 3. The two guide rings 4 are of different sizes and are circular plates with a right-angled triangular cross-section. Multiple dispensing ports 13 are provided. Alternating with partitions 5, a sealing ball 14 is inserted into the inside of the material inlet 13. The diameter of the sealing ball 14 is larger than the top diameter of the material inlet 13. A screw 15 is fixed to the top of the sealing ball 14. The screw 15 penetrates the top surface of the mixer 1. A threaded sleeve 21 is screwed onto the body of the screw 15. The threaded sleeve 21 is fixed to the top surface of the feed inlet 2. A handle 16 is fixed to the top of the screw 15. An installation port 17 is opened on the surface of the handle 16. A sealing block 18 is inserted into and screwed into the installation port 17. A through hole 20 is opened on the bottom surface of the installation port 17. The bottom end of the through hole 20 penetrates the screw 15 and the sealing ball 14. A rubber pad 29 is fixed to the bottom surface of the sealing block 18. A first cross-shaped screw handle is fixed to the top surface of the sealing block 18. When adding additives into the additive storage tank, turn handle 16. Handle 16 drives screw 15 to slide up along threaded sleeve 21. Screw 15 pulls sealing ball 14 upward. Sealing ball 14 no longer blocks the discharge port 13. Additives inside the additive storage tank fall into mixer 1 through discharge port 13. After screwing and pulling the sealing block 18 out of the installation port 17, adjust the air pressure inside the additive storage tank through hole 20. Turn screw 15 back to push sealing ball 14 down to block discharge port 13, thus sealing the bottom of the additive storage tank.

[0020] The inner ring surface of the feeding port 2 is provided with a plurality of supplementary feeding ports 6 at the top. The supplementary feeding ports 6 correspond to the additive storage tanks one by one. A sealing plate 7 is hinged to the bottom surface of the supplementary feeding port 6. The sealing plate 7 is in the shape of an "L" - shaped plate structure. A first rubber pad 8 is fixed at one end of the sealing plate 7. The first rubber pad 8 is clamped between the supplementary feeding port 6 and the sealing plate 7. Rubber strips 12 are fixed on both sides of the bottom end of the sealing plate 7. One side of the rubber strips 12 is fixed to the bottom surface of the supplementary feeding port 6. A screwing groove 9 is provided on the surface of the supplementary feeding port 6. An edge groove 10 is provided on the inner ring surface of the sealing plate 7. A hand - screwed screw 11 is screwed on the surface of the edge groove 10. The hand - screwed screw 11 passes through the sealing plate 7 and is screwed into the screwing groove 9. When adding additives into the additive storage tank, first unscrew the hand - screwed screw 11 from the screwing groove 9, then turn the sealing plate 7 to open it from the supplementary feeding port 6, put the additives into the additive storage tank through the supplementary feeding port 6, then turn the sealing plate 7 back to block the supplementary feeding port 6, and fix the sealing plate 7 in the supplementary feeding port 6 through the screwing groove 9.

[0021] A cover frame 22 is inserted into the top of the feeding port 2. Additives are stored inside the cover frame 22. The cover frame 22 is a hollow "convex" - shaped circular frame. The top plate of the cover frame 22 overlaps on the top surface of the feeding port 2. A rubber ring 34 is sleeved and fixed at the bottom end of the cover frame 22. The rubber ring 34 is clamped between the cover frame 22 and the feeding port 2 and generates elastic deformation. External threads are provided on the outer wall of the bottom of the cover frame 22, and internal threads are provided on the inner wall of the feeding port 2. The internal threads are below the supplementary feeding port 6, and the internal threads and the external threads are in threaded connection. A second material - spreading port 23 is opened on the bottom plate of the cover frame 22. A blocking ball 24 is inserted into the second material - spreading port 23. The diameter of the blocking ball 24 is larger than the diameter of the second material - spreading port 23. A second screw 25 is fixed to the top of the blocking ball 24. The second screw 25 passes through and is screwed on the top plate of the cover frame 22. A second handle 26 is fixed to the top surface of the second screw 25. A pressure - relief valve 27 is inserted and fixed on the top plate of the cover frame 22. A reserved port 28 is opened on the top plate of the cover frame 22. The reserved port 28 is an inverted "convex" - shaped circular port. A sealing block 29 is inserted and screwed into the reserved port 28. A second cross - screwing handle is fixed to the top surface of the sealing block 29. After unscrewing the sealing block 29 from the reserved port 28, put the additives into the cover frame 22, and then screw the sealing block 29 back into the reserved port 28. When the cover frame 22 blocks the top of the feeding port 2, turn the second handle 26 to lift the second screw 25. The second screw 25 drives the blocking ball 24 to move synchronously. The additives inside the cover frame 22 fall into the mixer 1 through the second material - spreading port 23.

[0022] The top surface of the cover frame 22 is provided with a rubber cover 31, which unfolds and folds outward to cover the top of the feeding port 2. The top surface of the cover frame 22 is provided with a storage groove 30, which is an annular groove. One end of the rubber cover 31 is fixed in the storage groove 30, and the other end of the rubber cover 31 is fixed with a rubber ring 32, which is fitted into a retaining groove 33, which is an annular groove and is located on the outer ring surface of the feeding port 2. After the rubber cover 31 is pulled out of the storage groove 30 and folded outward, it is fitted onto the top of the feeding port 2, and the rubber ring 32 is pushed into the retaining groove 33. At this time, the rubber cover 31 protects the top of the multiple sets of screws 15.

[0023] Multiple additives are pre-placed in several additive storage tanks, with the additive used in the largest quantity stored in the capping frame 22. The capping frame 22 is then removed from the top of the feeding port 2, and the raw material for the marine steel structure anti-corrosion coating is fed into the mixer 1 through the feeding port 2. The capping frame 22 is then replaced on top of the feeding port 2. After starting the mixer 1, it mixes the marine steel structure anti-corrosion coating inside. During the mixing process, additives in the additive storage tanks are fed into the mixer 1 through the corresponding dispensing port 13, and additives in the capping frame 22 are fed into the mixer 1 through the dispensing port 23. This allows for the dispensing of multiple additives into the mixer 1 without opening the cap. The feeding port 2 not only facilitates the dispensing of raw materials but also integrates the storage and dispensing of multiple additives, making it a multi-functional device.

[0024] Example 2, based on Example 1, proposes a process for preparing an anti-corrosion coating for marine steel structures. The process utilizes a marine steel structure anti-corrosion coating preparation apparatus and includes the following steps: The cap holder 22 is pre-filled with the main additive: unscrew the sealing block 29 (via the second cross-shaped handle) and pour the largest amount of additive into the cap holder 22. Reinstall the sealing block 29 into the pre-drilled opening 28 to ensure a seal.

[0025] Pre-store auxiliary additives in the additive storage tank: Unscrew and remove the hand-tightening screw 11, and move the sealing plate 7 to open the filling port 6. Pour different auxiliary additives into their respective additive storage tanks. Move the sealing plate 7 back to close the filling port 6, ensuring a seal through the rubber gasket 8 and rubber strip 12. Reinstall the hand-tightening screw 11 into the screw groove 9 to secure the sealing plate 7.

[0026] Raw material feeding: Remove the cap frame 22 (rotate the external thread to separate it from the internal thread of the feeding port 2). Pour the main raw material for the marine steel structure anti-corrosion coating into the mixer 1 through the feeding port 2. Reinstall the cap frame 22 to the top of the feeding port 2, ensuring the rubber ring 34 is compressed and sealed.

[0027] Mixer Operation and Additive Dosing: Connect the power supply and start the mixing system of mixer 1. Set the mixing speed and time (according to process requirements). Turn handle 26 to lift screw 25, causing sealing ball 24 to leave the material outlet 23. The main additive falls into mixer 1 through material outlet 23, and the dosage is controlled by the number of rotations of handle 26. After dosing, turn handle 26 in the opposite direction, and sealing ball 24 re-closes material outlet 23. Turn handle 16 to slide screw 15 upward, causing sealing ball 14 to leave material outlet 13. The auxiliary additive falls into mixer 1 through material outlet 13, and the dosage is controlled by the number of rotations of handle 16. Twist and pull out sealing block 18 (through the first cross-shaped handle) to allow air to enter the additive storage tank through perforation 20. After dosing, turn handle 16 in the opposite direction, sealing ball 14 re-closes material outlet 13, and reinstall sealing block 18.

[0028] Observe the mixing state of the raw materials and additives in mixer 1 to ensure uniformity and no clumping. Different additives can be added in stages according to process requirements, which can be achieved by operating handle 16 and handle 26 multiple times.

[0029] Feed port protection: Pull out the rubber cover 31 from the storage tank 30, turn it outwards, and wrap it around the top of the feed port 2. Insert the rubber ring 32 into the slot 33 to secure the rubber cover 31, preventing dust or foreign objects from entering the screw 15 area. After mixing, turn off the power to the mixer 1. Remove the cover frame 22 and clean up any residual additives and raw materials. Clean the inner wall of the feed port 2, the replenishment port 6, and the additive storage tank to avoid cross-contamination. Check whether the first and second loose material ports 13 and 23 are blocked, and clean them with a soft brush if necessary.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a marine steel structure anticorrosion coating, comprising a mixer (1) for stirring internally fed marine steel structure anticorrosion coating raw materials, characterized in that: The top of the mixer (1) is fixedly provided with a feeding port (2), the inside of the feeding port (2) is provided with a storage cavity (3), a plurality of partitions (5) are fixedly arranged in the inside of the storage cavity (3), an additive storage groove is formed between two adjacent partitions (5), the bottom of the additive storage groove is provided with a first scattering port (13), and the additive storage groove is arranged with additives, the top of the feeding port (2) is inserted with a cover frame (22), the inside of the cover frame (22) is arranged with additives, the top surface of the cover frame (22) is provided with a rubber cover (31), and the rubber cover (31) is wrapped around the top of the feeding port (2) after being unfolded and turned outward.

2. The device and process for preparing a corrosion protection coating for a marine steel structure according to claim 1, characterized in that: The storage cavity (3) is annular, the bottom surface of the storage cavity (3) is fixedly provided with guide rings (4) at the inner ring and the outer ring, the two guide rings (4) are different in size, the guide ring (4) is a circular ring plate with a right-angled triangle cross section, a plurality of first scattering ports (13) are arranged, the first scattering ports (13) and the partitions (5) are arranged alternately, the inside of the first scattering port (13) is inserted with a first blocking ball (14), the diameter of the first blocking ball (14) is greater than the top diameter of the first scattering port (13), the top end of the first blocking ball (14) is fixedly provided with a first screw rod (15), the first screw rod (15) penetrates through the top surface of the mixer (1), a silk sleeve (21) is sleeved on the rod body of the first screw rod (15) and is screwed, the silk sleeve (21) is fixedly arranged on the top surface of the feeding port (2), the top end of the first screw rod (15) is fixedly provided with a first handle (16), the surface of the first handle (16) is provided with a mounting hole (17), the inside of the mounting hole (17) is inserted and screwed with a blocking block (18), the bottom surface of the mounting hole (17) is provided with a through hole (20), the bottom end of the through hole (20) penetrates through the first screw rod (15) and the first blocking ball (14), the bottom surface of the blocking block (18) is fixedly provided with a second rubber pad (19), and the top surface of the blocking block (18) is fixedly provided with a first cross-shaped screw handle.

3. The device and process for preparing a corrosion protection coating for a marine steel structure according to claim 2, characterized in that: A plurality of feeding ports (6) are arranged on the inner ring surface of the feeding port (2) at the top, the feeding ports (6) correspond to the additive storage grooves one by one, the bottom surface of the feeding port (6) is hingedly provided with a sealing plate (7), the sealing plate (7) is in the shape of an "L" plate, one end of the sealing plate (7) is fixedly provided with a first rubber pad (8), the first rubber pad (8) is clamped between the feeding port (6) and the sealing plate (7), the bottom end of the sealing plate (7) is fixedly provided with a rubber strip (12) on both sides, one side of the rubber strip (12) is fixedly arranged on the bottom surface of the feeding port (6), the surface of the feeding port (6) is provided with a screw groove (9), the inner ring surface of the sealing plate (7) is provided with a side groove (10), and a hand screw rod (11) is screwed on the surface of the side groove (10), the hand screw rod (11) penetrates through the sealing plate (7) and is screwed in the screw groove (9).

4. The device and process for preparing a corrosion protection coating for a marine steel structure according to claim 3, characterized in that: The cover frame (22) is a hollow "convex" circular frame, the top plate of the cover frame (22) is overlapped on the top surface of the feeding port (2), the bottom end of the cover frame (22) is sleeved with a rubber ring (34), the rubber ring (34) is clamped between the cover frame (22) and the feeding port (2) to produce elastic deformation, the bottom of the cover frame (22) is provided with external threads on the outer wall, the inner wall of the feeding port (2) is provided with internal threads, the internal threads are below the feeding port (6), and the internal threads and the external threads are connected in a matched mode; the bottom plate of the cover frame (22) is provided with a second material dispersing port (23), the second material dispersing port (23) is inserted with a second blocking ball (24), the diameter of the second blocking ball (24) is greater than the diameter of the second material dispersing port (23), the top of the second blocking ball (24) is fixedly connected with a second screw rod (25), the second screw rod (25) penetrates through and is screwed on the top plate of the cover frame (22), the top surface of the second screw rod (25) is fixedly connected with a second handle (26), the top plate of the cover frame (22) is inserted and fixedly connected with a pressure relief valve (27), the top plate of the cover frame (22) is provided with a reserved port (28), the reserved port (28) is an inverted "convex" circular port, the reserved port (28) is inserted and screwed with a sealing block (29), and the top surface of the sealing block (29) is fixedly connected with a second cross-shaped screw handle.

5. The device and process for preparing a corrosion protection coating for a marine steel structure according to claim 4, characterized in that: The top surface of the cover frame (22) is provided with a receiving groove (30), the receiving groove (30) is an annular groove, one end of a rubber cover (31) is fixed in the receiving groove (30), the other end of the rubber cover (31) is fixedly connected with a rubber ring (32), the rubber ring (32) is sleeved in a clamping groove (33), the clamping groove (33) is an annular groove, and the clamping groove (33) is arranged on the outer ring surface of the feeding port (2).

6. A process for preparing a marine steel structure corrosion-resistant coating layer, which is prepared by using the marine steel structure corrosion-resistant coating layer preparation device according to claim 5, characterized in that: The preparation process comprises the following steps: A plurality of additives are respectively placed in a plurality of additive storage grooves in advance, and the largest amount of additive is stored in the cover frame (22), then the cover frame (22) is removed from the top of the feeding port (2), the raw materials of the marine steel structure corrosion-resistant coating are fed into the mixer (1) through the feeding port (2), and the cover frame (22) is blocked on the top of the feeding port (2), after the mixer (1) is started, the mixer (1) mixes the marine steel structure corrosion-resistant coating in the interior, during the mixing process, the additive in the additive storage groove is fed into the mixer (1) through the corresponding first material dispersing port (13), and the additive in the cover frame (22) is fed into the mixer (1) through the second material dispersing port (23), so that the plurality of additives are fed into the mixer (1) without opening the cover.

7. A process for the preparation of a corrosion protection coating for marine steel structures according to claim 6, characterized in that: When the additives in the additive storage tank are put in, the handle one (16) is screwed, the handle one (16) drives the screw rod one (15) to slide along the silk cover (21), the screw rod one (15) pulls the blocking ball one (14) to move up, the blocking ball one (14) no longer blocks the bulkhead one (13), the additives in the additive storage tank fall into the mixer (1) through the bulkhead one (13), the sealing block (18) is screwed out of the installation opening (17), the perforation (20) controls the air pressure in the additive storage tank, the screw rod one (15) pushes the blocking ball one (14) down to block the bulkhead one (13), and the bottom of the additive storage tank is blocked.

8. A process for the preparation of a corrosion protection coating for marine steel structures according to claim 7, characterized in that: When the additives in the additive storage tank are put in, the handle one (16) is screwed, the handle one (16) drives the screw rod one (15) to slide along the silk cover (21), the screw rod one (15) pulls the blocking ball one (14) to move up, the blocking ball one (14) no longer blocks the bulkhead one (13), the additives in the additive storage tank fall into the mixer (1) through the bulkhead one (13), the sealing block (18) is screwed out of the installation opening (17), the perforation (20) controls the air pressure in the additive storage tank, the screw rod one (15) pushes the blocking ball one (14) down to block the bulkhead one (13), and the bottom of the additive storage tank is blocked.

9. A process for the preparation of a corrosion protection coating for marine steel structures according to claim 8, characterized in that: After the sealing block (29) is screwed out of the reserved opening (28), the additives are put into the cover frame (22), and then the sealing block (29) is screwed into the reserved opening (28). When the cover frame (22) is blocked at the top of the feeding port (2), the handle two (26) is screwed to drive the screw rod two (25) to lift, the screw rod two (25) drives the blocking ball two (24) to move synchronously, and the additives in the cover frame (22) fall into the mixer (1) through the bulkhead two (23).

10. A process for the preparation of a corrosion protection coating for marine steel structures according to claim 9, characterized in that: After the rubber cover (31) is pulled out of the storage slot (30), it is turned outwards, the turned outwards rubber cover (31) is sleeved at the top end of the feeding port (2), and the rubber ring (32) is pushed into the clamping groove (33). At this time, the rubber cover (31) protects the top of the plurality of screw rod one (15).

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