A high-strength tin-plated sheet and its production system

Abstract

The present invention discloses a high-strength tin-plated sheet and a production system thereof, comprising a steel strip substrate, a tin-iron alloy layer is arranged on the outside of the steel strip substrate, a tin layer is coated on the outside of the tin-iron alloy layer, a heat-insulating layer is arranged on the outside of the tin layer, the heat-insulating layer is made of a polyurethane foam material, and a reinforcing layer is coated on the outside of the heat-insulating layer. The present invention sets mutual coordination among the steel strip substrate, the tin-iron alloy layer, the tin layer, the heat-insulating layer, the reinforcing layer, and the protective layer. By setting the heat-insulating layer on the tin layer, the heat-insulating performance of the entire sheet can be increased, and the influence of external heat energy on the tin layer can be reduced. By setting the reinforcing layer on the outside of the heat-insulating layer, the strength of the outer surface of the sheet can be increased to avoid being affected by sharp substances, which may cause the layers on the steel strip substrate to rupture and affect its anti-corrosion performance. This method can effectively improve the strength of the tin-plated sheet and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of tinplate production equipment, and in particular to a high-strength tinplate and a production system thereof. Background Art

[0002] Tinplate refers to a cold-rolled thin steel plate coated with a very thin layer of metal tin on both sides. It combines the hardness and strength of steel with the weldability, corrosion resistance and bright appearance of tin. Tinplate has the advantages of being odorless, non-toxic, light in weight and easy to process and shape. Printing different patterns can also beautify the product, so it has been widely used in the food canning industry, electronic devices, chemical paint and other industries. In the production process of tinplate, after the strip steel is tinned and soft-melted, in order to prevent the tin layer from oxidizing and yellowing during storage or paint baking, and to improve the tinplate's sulfur resistance and other properties, the tinplate must be passivated.

[0003] The disadvantage of the prior art is that the surface hardness of the tin-plated sheet is poor after tinning. When the surface comes into contact with sharp objects, the protective layer provided thereon is easily broken, thereby reducing the anti-corrosion performance of the sheet and affecting its use. Summary of the invention

[0004] The object of the present invention is to provide a high-strength tin-plated sheet and a production system thereof to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a high-strength tin-plated sheet, comprising a steel strip substrate, a tin-iron alloy layer is arranged on the outside of the steel strip substrate, a tin layer is coated on the outside of the tin-iron alloy layer, a heat insulation layer is arranged on the outside of the tin layer, the heat insulation layer is made of polyurethane foam material, the heat insulation layer is coated on the outside of the heat insulation layer, the reinforcement layer is made of diamond coating material, a protective layer is arranged on the outside of the reinforcement layer, and the protective layer is made of oil film.

[0006] A high-strength tin-plated sheet production system, which is used to process the above-mentioned sheet, comprises the following steps:

[0007] S1: placing the steel strip substrate with the tin-iron alloy layer into a tinning box for tinning, and forming a tin layer on the steel strip substrate;

[0008] S2: After spraying polyurethane foam material on the tin layer to form a heat insulation layer, diamond coating is sprayed on the surface to form a reinforcement layer;

[0009] S3: coating the thin plate formed in step S2 with an oil film to form a protective layer.

[0010] As a further description of the above technical solution:

[0011] The tin-plating box is divided into a reaction chamber, an adsorption chamber and a treatment chamber by a partition frame. A circulation mechanism is arranged between the reaction chamber and the treatment chamber, and a scraping mechanism is arranged in the treatment chamber. When the scraping mechanism moves, the height of the water flow in the circulation mechanism entering the treatment chamber is controlled by the connecting component so that the dropped tin particles can be taken away for treatment.

[0012] As a further description of the above technical solution:

[0013] The circulation mechanism includes a guide hopper and a supply pipe connected at both sides of the reaction chamber, and an inclined filter plate is fixedly connected in the reaction chamber; one side of the treatment chamber is connected to a discharge hopper, and the other side of the treatment chamber is provided with a plurality of one-way holes, and both sides of the tinning box are fixedly connected to filter boxes, a first connecting component is arranged between the guide hopper and the corresponding one-way hole, and a second connecting component is arranged between the discharge hopper and the supply pipe.

[0014] As a further description of the above technical solution:

[0015] The first connecting component includes a first one-way tube connected to the filter box, and a first tin pump is arranged on the first one-way tube; the first one-way tube is also connected to a water outlet frame and two bifurcated tubes, the two bifurcated tubes are both connected to the processing chamber, and the water outlet frame is connected to the corresponding one-way hole.

[0016] As a further description of the above technical solution:

[0017] The second connecting component comprises a water pipe, and a second tin pump is arranged on the water pipe.

[0018] As a further description of the above technical solution:

[0019] The scraping mechanism comprises a floating plate which slides vertically in the processing chamber, a frame-type scraper is arranged in the floating plate, and a heating tube for heating the frame-type scraper is arranged in the floating plate.

[0020] As a further description of the above technical solution:

[0021] The connection assembly comprises a connection frame fixedly connected between the floating plate and the water outlet frame.

[0022] As a further description of the above technical solution:

[0023] The two filter boxes are each provided with a filter assembly, and the filter assembly includes two partitions and two fixed cylinders fixedly connected in the filter box, the two partitions and the two fixed cylinders divide the filter box into a filter space and a debris removal space, and the filter space is fixedly connected with a bottom plate; a rotating drum is rotatably connected between the two fixed cylinders, a driving rotating rod is fixedly connected to the rotating drum through a supporting rod, a circular filter plate is fixedly connected to the outer surface of the rotating drum, a plurality of bottomless filter frames are connected to the circular filter plate, the bottomless filter frames are in contact with the top of the bottom plate, the circular filter plate is slidably connected in the filter box, and a recoil assembly is provided in the filter box, and the rotation of the rotating drum drives the recoil assembly to work through the driving unit.

[0024] As a further description of the above technical solution:

[0025] The recoil assembly includes a water collecting box fixedly connected to the filter box, a piston plate being slidably connected to the water collecting box; a piston rod being fixedly connected to the piston plate, a baffle being fixedly connected to the piston rod, a water inlet pipe and a drain pipe being connected to the bottom end of the water collecting box, the drain pipe extending into the impurity removal space and being connected to a nozzle; the drive unit includes a corrugated groove provided on the rotating drum, a limiting rod being slidably connected to the corrugated groove, and the limiting rod being fixedly connected to the baffle.

[0026] In the above technical solution, the high-strength tin-plated sheet and its production system provided by the present invention have the following beneficial effects:

[0027] The present invention sets the mutual coordination among the steel strip substrate, the tin-iron alloy layer, the tin layer, the heat insulation layer, the reinforcement layer and the protective layer. By setting the heat insulation layer on the tin layer, the heat insulation performance of the entire thin plate can be increased, and the influence of external heat energy on the tin layer can be reduced. By setting the reinforcement layer outside the heat insulation layer, the strength of the outer surface of the thin plate can be increased to avoid being affected by sharp objects, which may cause the layers on the steel strip substrate to rupture and affect its anti-corrosion performance. This method can effectively improve the strength of the tin-plated thin plate and has strong practicality.

[0028] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0029] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0031] Figure 1 A diagram showing the composition of a tin-plated sheet provided in an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of a tinning box provided in an embodiment of the present invention;

[0033] Figure 3 Another perspective view of the tinning box structure provided by the embodiment of the present invention;

[0034] Figure 4-5 A schematic longitudinal section diagram of a tinning box structure provided by an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the structure of a scraper mechanism provided in an embodiment of the present invention;

[0036] Figure 7 A cross-sectional schematic diagram of the scraper mechanism structure provided by an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of the internal structure of the filter box provided by an embodiment of the present invention;

[0038] Figure 9-10 A cross-sectional top view of the filter box structure provided by an embodiment of the present invention;

[0039] Fig.11 A schematic longitudinal section diagram of a filter box structure provided by an embodiment of the present invention;

[0040] Fig.12 for Fig.11 Enlarged view of point A in the middle.

[0041] Description of reference numerals:

[0042] 1. Steel strip substrate; 11. Tin-iron alloy layer; 12. Tin layer; 13. Heat insulation layer; 14. Reinforcement layer; 15. Protective layer; 2. Tinning box; 21. Partition frame; 22. Reaction chamber; 23. Adsorption chamber; 24. Treatment chamber; 31. Guide hopper; 32. Supply pipe; 33. Inclined filter plate; 34. Discharge hopper; 35. One-way hole; 36. Filter box; 41. First one-way pipe; 42. First tin pump; 43. Water outlet frame; 44. Bifurcated pipe; 51. Water guide pipe; 52. The second tin pump; 61. floating plate; 62. frame scraper; 63. heating tube; 7. connecting frame; 81. partition; 82. fixed cylinder; 83. filtering space; 84. impurity removal space; 85. bottom plate; 86. rotating cylinder; 87. driving rotating rod; 88. circular filter plate; 89. bottomless filter frame; 91. water collecting box; 92. piston plate; 93. piston rod; 94. baffle; 95. water inlet pipe; 96. drain pipe; 97. nozzle; 101. corrugated groove; 102. limit rod. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0044] See also Figure 1-12 The embodiment provides a high-strength tin-plated sheet, a high-strength tin-plated sheet, comprising a steel strip substrate 1, the steel strip substrate 1 is made of low-alloy high-strength steel rolled, low-carbon steel with a carbon content of <0.13%, and a thickness of 200um, a tin-iron alloy layer 11 is arranged on the outside of the steel strip substrate 1, the tin-iron alloy layer 11 is a tin-iron alloy crystal, and the thickness is 0.15um, the outside of the tin-iron alloy layer 11 is coated with a tin layer 12, and the thickness of the tin layer 12 is 0.35um, which has the advantages of improving oxidation resistance, improving electrical conductivity, improving weldability, enhancing tensile strength, etc., and the outside of the tin layer 12 is provided with a heat insulation Layer 13, the heat-insulating layer 13 is made of polyurethane foam material, which is a high molecular polymer. It is made of isocyanate and polyether as main raw materials, with a variety of additives added, and is foamed under high pressure by special equipment; it has the lowest thermal conductivity, excellent waterproof and thermal insulation properties, and high strength. The outside of the heat-insulating layer 13 is coated with a reinforcing layer 14, which is made of diamond coating material. The unique crystal structure of diamond in the diamond coating has extremely high hardness. The outside of the reinforcing layer 14 is provided with a protective layer 15, which is made of oil film.

[0045] A high-strength tin-plated sheet production system, which is used to process the above-mentioned sheet, comprises the following steps:

[0046] S1: The steel strip substrate 1 with the tin-iron alloy layer 11 is placed in the tinning box 2 for tinning, and a tin layer 12 is formed on the steel strip substrate 1. The steel strip substrate 1 is introduced into the tinning box 2 through a rotating guide roller, thereby realizing the tinning operation;

[0047] S2: After spraying polyurethane foam material on the tin layer 12 to form a heat insulation layer 13, diamond coating is sprayed on the surface to form a reinforcing layer 14. The polyurethane foam material is cooled to form the heat insulation layer 13. The reinforcing layer is arranged outside the steel strip substrate 1 to increase the hardness of its surface;

[0048] S3: coating the thin plates formed in step S2 with an oil film to form a protective layer 15. The oil film can prevent the thin plates from rusting and also facilitate separation of the stacked thin plates when the thin plates are used.

[0049] In an embodiment further provided by the present invention, the tinning box 2 is divided into a reaction chamber 22, an adsorption chamber 23 and a treatment chamber 24 by a partition frame 21. The partition frame 21 is arranged in the middle part of the tinning box 2. The specific arrangement of the reaction chamber 22, the adsorption chamber 23 and the treatment chamber 24 can be referred to in the appendix of the specification. Figure 4 During use, it is necessary to ensure the height of the reaction chamber 22, which needs to be greater than the movement distance of the thin plate entering the tin liquid and reacting with it. A circulation mechanism is provided between the reaction chamber 22 and the processing chamber 24, and a scraping mechanism is provided in the processing chamber 24 by providing the circulation mechanism; when the scraping mechanism moves, the height of the water flow in the circulation mechanism entering the processing chamber 24 is controlled by the connecting component, so that the tin particles that are hung are taken away for treatment, and by providing a fantasy mechanism between the reaction chamber 22 and the processing chamber 24, the substances produced by the reaction in the reaction chamber 22 and the particulate matter hung by the scraping mechanism in the processing chamber 24 can be taken away for treatment, and the particulate matter is prevented from falling into between the thin plate and the guide roller. When the particles fall between the two and there is relative movement between the two, the particulate matter will wear the guide roller or the thin plate, and the continuous operation of the circulation mechanism allows the particulate matter to move with the water flow, thereby facilitating the treatment of the particulate matter, reducing the possibility of the particulate matter entering between the guide roller and the thin plate, and improving the flatness of the tin plating of the thin plate.

[0050] Furthermore, the circulation mechanism includes a guide hopper 31 and a supply pipe 32 connected to both sides of the reaction chamber 22. An inclined filter plate 33 is fixedly connected to the reaction chamber 22. The inclined filter plate 33 is arranged above the guide roller inside the reaction chamber 22 to intercept solid particles after the thin plate reacts with the tin liquid. A groove for the thin plate to pass through is arranged on the inclined filter plate 33. When the thin plate passes through the inclined filter plate 33, a thin tin layer 12 will be attached to its surface. The guide hopper 31 is arranged on the side with a lower angle of the inclined filter plate 33 to facilitate the particles to pass through. The material enters the guide hopper 31 along the inclined filter plate 33; one side of the processing chamber 24 is connected to a discharge hopper 34, and the other side of the processing chamber 24 is provided with multiple one-way holes 35. A one-way valve is provided in the one-way hole 35, and the liquid can only flow in one direction, and the flow direction is from the outside of the tinning box 2 to the inside of the tinning box 2. Both sides of the tinning box 2 are fixedly connected with a filter box 36, a first connecting component is provided between the guide hopper 31 and the corresponding one-way hole 35, and a second connecting component is provided between the discharge hopper 34 and the supply pipe 32.

[0051] Furthermore, the first connecting component includes a first one-way pipe 41 connected to the filter box 36, and a first tin pump 42 is arranged on the first one-way pipe 41; the first one-way pipe 41 is also connected to a water outlet frame 43 and two forked pipes 44, both of which are connected to the processing chamber 24, the water outlet frame 43 is connected to the corresponding one-way hole 35, the first tin pump 42 is connected to an external power supply and a control switch, the first tin pump 42 is a vacuum tin suction pump, which is an existing device and will not be described in detail here, the two forked pipes 44 are arranged below the water outlet frame 43 and above the guide roller in the processing chamber 24, and are connected to the one-way hole 35 through the water outlet frame 43, so as to drive the liquid in the layer to flow, thereby taking away impurities, and the purpose of setting the forked pipe 44 is to provide secondary protection to prevent some particles from falling, and a protective plate can be arranged on the water outlet frame 43 to block the one-way hole 35 that is not connected to the water outlet frame 43, and the one-way hole 35 and the forked pipe 44 are arranged on both sides of the thin plate.

[0052] Furthermore, the second connecting component includes a water pipe 51, on which a second tin pump 52 is arranged. The second tin pump 52 is also connected to an external power supply and a control switch. Through the operation of the second tin pump 52, the filtered liquid in the filter box 36 on one side can be pumped into the reaction chamber 22 through the water pipe 51. The second tin pump 52 and the first tin pump 42 are the same equipment.

[0053] In an embodiment further provided by the present invention, the scraper mechanism includes a floating plate 61 that slides vertically in the processing chamber 24, a frame-type scraper 62 is arranged in the floating plate 61, and a heating tube 63 for heating the frame-type scraper 62 is arranged in the floating plate 61. By arranging the frame-type scraper 62 in the floating plate 61, the thin plate can be processed as soon as it comes out of the tin liquid surface, and is used to scrape off the excess tin layer 12. The frame-type scraper 62 can perform all-round processing on all sides of the thin plate, and the advantage of the frame-type scraper 62 arranged on the floating plate 61 relative to the fixed scraper is that the tin liquid will be reduced during use. When the scraper is separated from the thin plate for a long time during processing, it is easy to cause the tin layer 12 to solidify and is not easy to clean. The temperature of the frame-type scraper 62 can be increased by arranging the heating tube 63.

[0054] In the embodiment provided by the present invention, the connecting assembly includes a connecting frame 7 fixedly connected between the floating plate 61 and the water outlet frame 43. By setting the connecting frame 7, the water outlet frame 43 and the floating plate 61 can be adjusted synchronously, so that the flow of tin liquid in different tin liquid layers can be adjusted.

[0055] In the embodiment provided by the present invention, a filter assembly is provided in each of the two filter boxes 36, and the filter assembly includes two partitions 81 and two fixed cylinders 82 fixedly connected in the filter box 36, the two partitions 81 and the two fixed cylinders 82 divide the filter box 36 into a filter space 83 and a decontamination space 84, a bottom plate 85 is fixedly connected in the filter space 83, and the bottom plate 85 is fixed on the wall of the filter box 36; a rotating cylinder 86 is rotatably connected between the two fixed cylinders 82, a driving rotating rod 87 is fixedly connected to the rotating cylinder 86 through a supporting rod, a circular filter plate 88 is fixedly connected to the outer surface of the rotating cylinder 86, a plurality of bottomless filter frames 89 are connected to the circular filter plate 88, and a space for the circular filter plate 88 and the bottomless filter frame 89 to pass through is provided between the two partitions 81. The bottom plate 85 is a filter element that is used to filter the filter element 83. The filter element 83 is a filter element that is used to filter the filter element 83. The filter element 83 is a filter element that is used to filter the filter element 83. The filter element 83 is a filter element that is used to filter the filter element 83.

[0056] In the solution further provided by the present invention, the backwash assembly includes a water collecting box 91 fixedly connected to the filter box 36, a piston plate 92 is slidably connected to the water collecting box 91; a piston rod 93 is fixedly connected to the piston plate 92, a baffle 94 is fixedly connected to the piston rod 93, the bottom end of the water collecting box 91 is connected to a water inlet pipe 95 and a drain pipe 96, the drain pipe 96 extends into the impurity removal space 84 and is connected to a nozzle 97; the drive unit includes a corrugated groove 101 opened on the drum 86, and the corrugated groove 101 is connected to the drum 86. A limit rod 102 is slidably connected in the groove 101, and the limit rod 102 is fixedly connected to the baffle 94. The water inlet pipe 95 and the drain pipe 96 both adopt pipes that can only carry out one-way flow. The water inlet direction of the water inlet pipe 95 is from the dust removal space to the water collecting tank 91, and the water inlet direction of the drain pipe 96 is from the water collecting tank 91 to the dust removal space. By setting a nozzle 97, the circular filter plate 88 entering the dust removal space can be flushed to prevent impurities from being stuck in the filter mesh and affecting its use.

[0057] During operation, the thin plate is transferred to the tinning box 2 through the guide roller, and will first contact and react with the tin liquid in the reaction chamber 22. At this time, the associated particulate matter will fall on the inclined filter plate 33 in the reaction chamber 22, and a thin layer of tin 12 will be attached to the thin plate and enter the adsorption chamber 23 through the inclined filter plate 33. At this time, the thickness of the tin layer 12 on the thin plate will gradually increase until the thin plate comes to the processing chamber 24 and is about to separate from the tin liquid layer in the processing chamber 24. The frame-shaped scraper 62 in the floating plate 61 that is arranged in the processing chamber 24 and suspended on the tin liquid will directly process the surface of the thin plate, so that the thin plate can pass through the floating plate 61 after reaching a suitable thickness;

[0058] When the thin plate enters the tin-plating box 2, the first tin pump 42 and the second tin pump 52 are started, and the particulate matter generated in the reaction chamber 22 will enter the filter box 36 along with the tin liquid through the guide hopper 31, and the filtered tin liquid can be pumped into the processing chamber 24 through the operation of the first tin pump 42, so that the liquid in the processing chamber 24 flows, and the flowing liquid is discharged through the discharge hopper 34 on the other side, and filtered again by the filter assembly inside the filter box 36, and the filtered tin liquid is guided back to the reaction chamber 22 by the second tin pump 52 and the water guide pipe 51, so that the liquid in the reaction chamber 22 flows, and the circulation is repeated, so that the particulate matter is brought into the filter box 36 by the flowing tin liquid for filtering treatment;

[0059] When the filter box 36 is filtering, a driving rotating rod 87 is arranged on it and needs to be driven to rotate by an external driving source. When it rotates, it will drive the rotating drum 86 arranged between the fixed drum 82 to rotate. The rotation of the rotating drum 86 drives the circular filter plate 88 to move synchronously. The contact surface between the circular filter plate 88 and the other guide buckets 31 or the discharge bucket 34 changes continuously, thereby ensuring the filtering effect of the tin liquid, and when the bottomless filter frame 89 on the circular filter plate 88 moves to the bottom of the guide bucket 31 or the discharge bucket 34, the impurities accumulated on the guide bucket 31 or the discharge bucket 34 and the circular filter plate 88 can be taken away. When the bottomless filter frame 89 filled with impurities moves from the filtering space 83 to the impurity removal space 84, its bottom does not contact with the bottom plate 85, thereby losing the shielding, and the impurities stored in the bottomless filter frame 89 are The impurities will fall into the impurity removal space 84, and when the drum 86 rotates, the wave groove and the limit rod 102 arranged thereon will drive the baffle plate 94 to move up and down. The up and down movement of the baffle plate 94 can drive the piston plate 92 to do piston movement in the water collecting tank 91 through the piston rod 93, so that the water inlet pipe 95 and the drain pipe 96 can intermittently supply water to the nozzle 97, so that the nozzle 97 sprays water to recoil the rotating circular filter plate 88, so that the impurities stuck inside it are flushed out, thereby achieving the purpose of unblocking, and during the intervals when the drain pipe 96 intermittently supplies water to the nozzle 97, the bottomless filter frame 89 just moves from above the nozzle 97, and the bottomless filter frame 89 does not need to be recoiled, so it is convenient for the water collecting tank 91 to store water to recoil the filter mesh of the circular filter plate 88.

[0060] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-strength tin-plated sheet production system, which is used to process high-strength tin-plated sheet, the tin-plated sheet comprising a steel strip substrate (1), the steel strip substrate (1) is provided with a tin-iron alloy layer (11) on the outside, the tin-iron alloy layer (11) is coated with a tin layer (12) on the outside, the tin layer (12) is provided with a heat insulation layer (13) on the outside, the heat insulation layer (13) is made of polyurethane foam material, the heat insulation layer (13) is coated with a reinforcing layer (14) on the outside, the reinforcing layer (14) is made of diamond coating material, the reinforcing layer (14) is provided with a protective layer (15) on the outside, the protective layer (15) is made of oil film, and is characterized in that: The following steps are involved: S1: placing a steel strip substrate (1) with a tin-iron alloy layer (11) into a tinning box (2) for tinning, and forming a tin layer (12) on the steel strip substrate (1); S2: spraying a polyurethane foam material on the tin layer (12) to form a heat insulation layer (13), and then spraying a diamond coating on the surface thereof to form a reinforcement layer (14); S3: coating the thin plate formed in step S2 with an oil film to form a protective layer (15); The tinning box (2) is divided into a reaction chamber (22), an adsorption chamber (23) and a treatment chamber (24) by a partition frame (21); a circulation mechanism is provided between the reaction chamber (22) and the treatment chamber (24); and a scraping mechanism is provided in the treatment chamber (24); When the scraper mechanism moves, the height of the water flow in the circulation mechanism entering the processing chamber (24) is controlled by the connecting assembly, so that the dropped tin particles can be taken away for processing; The circulation mechanism comprises a guide hopper (31) and a supply pipe (32) connected at both sides of the reaction chamber (22); an inclined filter plate (33) is also fixedly connected to the reaction chamber (22); One side of the processing chamber (24) is connected to a discharge hopper (34), and the other side of the processing chamber (24) is provided with a plurality of one-way holes (35). Both sides of the tinning box (2) are fixedly connected to a filter box (36). A first connecting component is provided between the guide hopper (31) and the corresponding one-way hole (35), and a second connecting component is provided between the discharge hopper (34) and the supply pipe (32).

2. A high-strength tinplate production system according to claim 1, characterized in that: The first connecting component comprises a first one-way pipe (41) connected to the filter box (36), and a first tin pump (42) is arranged on the first one-way pipe (41); The first one-way pipe (41) is also connected to a water outlet frame (43) and two bifurcated pipes (44), the two bifurcated pipes (44) are both connected to the processing chamber (24), and the water outlet frame (43) is connected to the corresponding one-way hole (35).

3. A high-strength tinplate production system according to claim 1, characterized in that: The second connecting component comprises a water pipe (51), and a second tin pump (52) is arranged on the water pipe (51).

4. A high-strength tinplate production system according to claim 2, characterized in that: The scraping mechanism comprises a floating plate (61) that slides vertically in the processing chamber (24), a frame-type scraper (62) being arranged in the floating plate (61), and a heating tube (63) for heating the frame-type scraper (62) being arranged in the floating plate (61).

5. A high-strength tinplate production system according to claim 4, characterized in that: The connection assembly comprises a connection frame (7) fixedly connected between the floating plate (61) and the water outlet frame (43).

6. A high-strength tinplate production system according to claim 1, characterized in that: The two filter boxes (36) are each provided with a filter assembly, the filter assembly comprising two partitions (81) and two fixed cylinders (82) fixedly connected to the filter box (36), the two partitions (81) and the two fixed cylinders (82) dividing the filter box (36) into a filter space (83) and a debris removal space (84), the filter space (83) being fixedly connected to a bottom plate (85); A rotating drum (86) is rotatably connected between the two fixed drums (82); a driving rotating rod (87) is fixedly connected to the rotating drum (86) via a supporting rod; a circular filter plate (88) is fixedly connected to the outer surface of the rotating drum (86); a plurality of bottomless filter frames (89) are connected to the circular filter plate (88); the bottomless filter frames (89) are in contact with the top of the bottom plate (85); the circular filter plate (88) is slidably connected to the filter box (36); a recoil assembly is provided in the filter box (36); the rotating drum (86) rotates through a driving unit to drive the recoil assembly to operate.

7. A high-strength tinplate production system according to claim 6, characterized in that: The backflushing assembly comprises a water collecting box (91) fixedly connected to the filter box (36), and a piston plate (92) is slidably connected to the water collecting box (91); The piston plate (92) is fixedly connected to a piston rod (93), and the piston rod (93) is fixedly connected to a baffle (94); the bottom end of the water collecting tank (91) is connected to a water inlet pipe (95) and a drain pipe (96); the drain pipe (96) extends into the impurity removal space (84) and is connected to a nozzle (97); The driving unit comprises a corrugated groove (101) formed on a rotating drum (86), a limiting rod (102) being slidably connected in the corrugated groove (101), and the limiting rod (102) being fixedly connected to the baffle (94).

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