A lining coating device

Abstract

This invention belongs to the field of glaze coating technology and discloses an inner liner coating device, including a swing frame assembly, a coating assembly, a glaze circulation assembly, and a water-cooling assembly. The swing frame assembly includes a support frame, a swing frame, and a drive structure. The drive structure drives the swing frame to swing back and forth, and the swing frame has a first water-cooling jacket. The coating assembly includes an inner liner fixing frame and a rotating mechanism. The inner liner fixing frame is mounted on the swing frame and is used to fix the inner liner with the liner opening facing downwards. The rotating mechanism drives the inner liner to rotate around the axial direction. The glaze circulation assembly is used to inject glaze into the inner liner and includes a glaze slurry tank with a second water-cooling jacket. The water-cooling assembly includes a chiller and a circulation pipeline. One end of the circulation pipeline is connected to the chiller, and the other end is connected to the first water-cooling jacket and the second water-cooling jacket in sequence. The inner liner coating device of this invention can avoid the glaze from being affected by the high temperature of the equipment and the high temperature of the inner liner, maintain a uniform coating thickness, and ensure the corrosion resistance and anti-corrosion function of the inner liner.

Description

Technical Field

[0001] This invention relates to the field of enamel coating technology, and more particularly to an enamel coating device for an inner liner. Background Technology

[0002] Water heaters are a common type of heating device, including gas water heaters and electric water heaters. Electric water heaters mostly use enamel-lined tanks. Enameled tanks are made by coating a steel plate with enamel and firing it to form a highly corrosion-resistant enamel layer, thus achieving the enamel-lined tank's resistance to immersion and corrosion.

[0003] Current enamel liner production processes generally employ a wet tumbling process. First, the formed steel liner blank is cleaned by removing oil and rust. Then, enamel slurry is poured into the interior of the liner, which is then tumbled and rotated on a coating machine to coat the entire inner surface with the enamel slurry. Excess enamel slurry is then poured out, and the enamel-coated liner is dried and fired at a high temperature, completing the enamel coating process. The properties of the enamel slurry change with ambient temperature because the vitreous surface of the enamel is damaged during grinding, creating numerous fractures. These fractures are defective, and when the enamel is made into a suspension, alkaline substances precipitate from these fracture points, affecting the coating performance of the enamel slurry. The degree of precipitation is temperature-dependent; higher temperatures result in more precipitates, which more easily damage the coating performance of the enamel slurry. Existing enamel coating machines are prone to increased enamel slurry precipitation due to ambient temperature variations (especially high summer temperatures). Furthermore, the drying process for degreasing and rust removal of the inner liner before coating occurs, and in continuous production lines, the next step after pretreatment drying is coating, leaving the inner liner still at a high temperature (above 40 degrees Celsius). The high temperature of the coating machine and the inner liner itself transfers heat to the enamel slurry, causing it to deteriorate at high temperatures, increasing precipitates, and resulting in uneven coating thickness, thus affecting the inner liner's corrosion resistance and anti-corrosion properties. Summary of the Invention

[0004] The purpose of this invention is to provide an inner liner enamel coating device that can avoid the enamel slurry being affected by the high temperature of the device and the inner liner, maintain a uniform coating thickness, and ensure the lining's resistance to immersion and corrosion.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A liner enamel coating apparatus is provided, comprising:

[0007] A swing frame assembly, comprising a support frame, a swing frame, and a drive structure, wherein the swing frame is rotatably connected to the support frame, the drive structure is used to drive the swing frame to swing back and forth, and a first water-cooled interlayer is provided inside the swing frame;

[0008] The enamel coating assembly includes an inner liner fixing frame and a rotating mechanism. The inner liner fixing frame is disposed on the swing frame and is used to fix the inner liner, with the liner opening facing downward. The rotating mechanism is used to drive the inner liner to rotate around the axial direction.

[0009] A glaze slurry circulation assembly is used to inject glaze slurry into the inner liner. The glaze slurry circulation assembly includes a glaze slurry tank, and a second water-cooled jacket is provided inside the glaze slurry tank.

[0010] A water-cooled assembly, comprising a chiller and a circulation pipeline, wherein one end of the circulation pipeline is connected to the chiller, and the other end is sequentially connected to the first water-cooled jacket and the second water-cooled jacket.

[0011] As a preferred embodiment of the present invention, the swing frame includes:

[0012] The base plate, on which the inner liner fixing bracket is mounted;

[0013] A top plate, wherein the top plate and the bottom plate are disposed opposite to each other, and the rotating mechanism is disposed on the top plate;

[0014] A back plate, the two ends of which are fixedly connected to the bottom plate and the top plate respectively, and the first water-cooled interlayer is disposed in the bottom plate and the back plate;

[0015] Two side plates are symmetrically arranged on both sides of the back plate, and the two ends of the side plates are respectively fixedly connected to the bottom plate and the top plate.

[0016] As a preferred embodiment of the present invention, the driving structure includes:

[0017] A drive motor, which is fixedly connected to the support frame;

[0018] A rotating shaft, one end of which is fixedly connected to the swing frame;

[0019] A worm gear reducer, one end of which is connected to the output end of the drive motor, and the other end of which is connected to the other end of the rotating shaft away from the swing frame, the worm gear reducer is used to drive the rotating shaft to rotate.

[0020] As a preferred structure of the present invention, the inner liner coating equipment is provided with two driving structures, which are symmetrically arranged on both sides of the swing frame, and the two rotating shafts are respectively fixedly connected to the two side plates.

[0021] As a preferred embodiment of the present invention, the glaze slurry circulation assembly further includes:

[0022] A glaze slurry output pipe, one end of which is connected to the glaze slurry tank, and the other end passes through the bottom plate to connect to the inner liner;

[0023] A slurry storage tank is located below the swing frame and is used to collect the glaze slurry flowing out of the inner liner;

[0024] A glaze slurry return pipe, one end of which is connected to the slurry storage tank and the other end of which is connected to the glaze slurry bucket;

[0025] A glaze slurry pump, which is used to drive the flow of the glaze slurry.

[0026] As a preferred structure of the present invention, the base plate is provided with glaze slurry return holes, which correspond to and are connected to the slurry storage tank.

[0027] As a preferred embodiment of the present invention, the circulation pipeline includes:

[0028] A first inlet pipe and a first return pipe, wherein the first inlet pipe is used to inject cold water into the first water-cooled jacket, and the first return pipe is used to return the cold water in the first water-cooled jacket;

[0029] The second inlet pipe and the second return pipe are used to inject cold water into the second water-cooled jacket and to return the cold water in the second water-cooled jacket.

[0030] As a preferred embodiment of the present invention, the first inlet pipe further includes a first flexible hose section, and the first return pipe further includes a second flexible hose section.

[0031] As a preferred embodiment of the present invention, the glaze slurry output pipe further includes a third flexible hose section.

[0032] As a preferred structure of the present invention, a third water-cooled jacket is further provided in the slurry storage tank, and the circulation pipeline further includes a third water inlet pipe and a third water return pipe. The third water inlet pipe is used to inject cold water into the third water-cooled jacket, and the third water return pipe is used to return the cold water in the third water-cooled jacket.

[0033] The beneficial effects of this invention are:

[0034] The inner tank enameling equipment provided by this invention uses a swing frame and an enameling tank as important structural components in contact with the enameling slurry. A first and second water-cooling jacket can store cold water, which circulates between the water-cooling components and the first and second water-cooling jackets to cool the enameling slurry. The circulation pipeline and the enameling slurry circulation components are independent and do not interfere with each other, ensuring the reliability of the enameling operation. During enameling, the inner tank is first placed on the swing frame in a vertical position. The inner tank fixing frame and the rotating mechanism clamp both ends of the inner tank, with the inlet facing downwards. The drive structure is activated to rotate the swing frame so that the inlet faces upwards. At this time, the enameling slurry circulation component injects the enameling slurry into the inner tank, and the rotating mechanism is activated to rotate the inner tank. After the inner tank rotates at least one revolution, the enameling is completed. The drive structure then reverses the swing frame. When the swing frame rotates to a certain angle, the enameling slurry flows out from the inlet onto the swing frame and then flows back to the enameling slurry circulation component, realizing the recycling of the enameling slurry. This process continues until the swing frame returns to its initial position, completing one enameling operation. During this process, the second water-cooled jacket of the glaze slurry tank cools the glaze slurry to prevent it from overheating. When the glaze slurry is injected into the overheated inner tank, it will be heated by the inner tank. When the glaze slurry flowing out of the inner tank falls onto the swing frame, the first water-cooled jacket cools the glaze slurry again. Moreover, the first water-cooled jacket can also form a cooling space to cool the body of the inner tank, further enhancing the cooling effect on the glaze slurry, thereby preventing an increase in glaze slurry precipitation, maintaining the uniformity of the coating thickness, and avoiding affecting the corrosion resistance and anti-corrosion function of the inner tank. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the inner liner enamel coating equipment provided in an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the inner liner provided in an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the slurry storage tank provided in an embodiment of the present invention.

[0038] In the picture:

[0039] 1. Swing frame assembly; 11. Support frame; 12. Swing frame; 121. Base plate; 1211. Glaze slurry return hole; 122. Top plate; 123. Back plate; 124. Side plate; 13. Drive structure; 131. Drive motor; 132. Rotating shaft; 133. Worm gear reducer;

[0040] 2. Enameled components; 21. Inner liner fixing bracket; 22. Rotating mechanism;

[0041] 3. Glaze slurry circulation assembly; 31. Glaze slurry tank; 32. Glaze slurry output pipe; 321. Third flexible hose section; 33. Slurry storage bin; 331. Slurry return hole; 34. Glaze slurry return pipe;

[0042] 4. Water-cooled components; 41. Chiller; 42. Circulation piping; 421. First inlet pipe; 4211. First flexible hose section; 422. First return pipe; 4221. Second flexible hose section; 423. Second inlet pipe; 424. Second return pipe; 425. Third inlet pipe; 426. Third return pipe;

[0043] 100. Inner liner; 101. Gallbladder opening. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0045] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0048] like Figures 1-3As shown in the figure, this embodiment of the invention provides an inner liner enamel coating device, which includes a swing frame assembly 1, an enamel coating assembly 2, an enamel slurry circulation assembly 3, and a water cooling assembly 4. The swing frame assembly 1 includes a support frame 11, a swing frame 12, and a drive structure 13. The swing frame 12 is rotatably connected to the support frame 11, and the drive structure 13 drives the swing frame 12 to reciprocate. A first water-cooled interlayer (not shown in the figure) is provided inside the swing frame 12. The enamel coating assembly 2 includes an inner liner fixing frame 21 and a rotating mechanism 22. The inner liner fixing frame 21 is disposed on the swing frame 12 and is used to fix the inner liner 100, with the liner opening 101 facing downwards. The rotating mechanism 22 drives the inner liner 100 to rotate around the axial direction. Multiple enamel coating assemblies 2 can be arranged on the swing frame 12 to form multiple workstations, not limited to the figures of this embodiment. Specifically, the inner liner fixing frame 21 is provided with a hollow structure, through which the enamel slurry after coating can flow to the swing frame 12 and be recycled into the enamel slurry circulation assembly 3. The structure and rotation principle of the rotating mechanism 22 are prior art in this field and will not be described in detail here.

[0049] The glaze slurry circulation assembly 3 is used to inject glaze slurry into the inner tank 100. The glaze slurry circulation assembly 3 includes a glaze slurry tank 31, which has a second water-cooled jacket (not shown in the figure). The glaze slurry tank 31 stores the glaze slurry used for enameling. The second water-cooled jacket covers the tank wall and bottom of the glaze slurry tank 31, providing comprehensive cooling. The water-cooling assembly 4 includes a chiller 41, a circulation pipeline 42, and a circulating water pump (not shown in the figure). One end of the circulation pipeline 42 is connected to the chiller 41, and the other end is connected sequentially to the first and second water-cooled jackets. The circulating water pump provides power for the circulation of cold water. The swing frame 12 and the glaze slurry tank 31 are important structural components in contact with the glaze slurry. The first and second water-cooled jackets can store cold water, which circulates between the water-cooling assembly 4 and the first and second water-cooled jackets, thereby cooling the glaze slurry. The circulation pipeline 42 and the glaze slurry circulation assembly 3 are independent of each other and do not interfere with each other, ensuring the reliability of the enameling operation.

[0050] During the enamel coating process, the inner liner 100 is first placed on the swing frame 12. At this time, the swing frame 12 is in a vertical position, and the inner liner fixing frame 21 and the rotating mechanism 22 clamp the two ends of the inner liner 100 respectively, with the liner opening 101 facing downwards. The drive structure 13 is activated, causing the swing frame 12 to rotate. The maximum rotation angle of the swing frame 12 can reach 150°-180°, at which point the liner opening 101 is basically facing upwards. At this time, the glaze circulation component 3 injects glaze into the inner liner 100, and at the same time, the rotating mechanism 22 is activated, causing the inner liner 100 to rotate. After the inner liner 100 rotates at least one revolution, the enamel coating is completed. The drive structure 13 reverses the swing frame 12. When the swing frame 12 rotates to a certain angle, the glaze will flow out from the liner opening 101 and fall onto the swing frame 12, and then flow back to the glaze circulation component 3, realizing the recycling of the glaze. This process continues until the swing frame 12 returns to its initial position, completing one enamel coating operation. During this process, the second water-cooled jacket of the glaze slurry tank 31 cools the glaze slurry to prevent it from overheating. When the glaze slurry is injected into the overheated inner liner 100, it will be heated by the inner liner 100. When the glaze slurry flowing out of the inner liner 100 falls onto the swing frame 12, the first water-cooled jacket cools the glaze slurry again. Moreover, the first water-cooled jacket can also form a cooling space to cool the body of the inner liner 100, further enhancing the cooling effect on the glaze slurry, thereby preventing an increase in glaze slurry precipitation, maintaining the uniformity of the coating thickness, and avoiding affecting the corrosion resistance and anti-corrosion function of the inner liner 100.

[0051] As a preferred embodiment, the swing frame 12 includes a base plate 121, a top plate 122, and a back plate 123 surrounding two side plates 124. An inner liner fixing frame 21 is mounted on the base plate 121, and the top plate 122 is positioned opposite to the base plate 121. A rotating mechanism 22 is mounted on the top plate 122, ensuring that the opening 101 of the inner liner 100 in its initial position faces downwards, facilitating the outflow of the enamel slurry after coating. The two ends of the back plate 123 are fixedly connected to the base plate 121 and the top plate 122, respectively, and a first water-cooled interlayer is disposed within the base plate 121 and the back plate 123. Because after the inner liner 100 is coated, during the reverse rotation and reset process of the swing frame 12, the glaze slurry flows from the inner liner 100 onto the back plate 123. The first water-cooling interlayer extending to the back plate 123 can effectively cool the glaze slurry. The liner opening 101 faces the bottom plate 121. Therefore, the glaze slurry circulation assembly 3 needs to pass through the bottom plate 121 to inject glaze slurry into the liner opening 101. Thus, the first water-cooling interlayer extending to the bottom plate 121 can effectively cool the glaze slurry. Two side plates 124 are symmetrically arranged on both sides of the back plate 123, and the two ends of the side plates 124 are respectively fixedly connected to the bottom plate 121 and the top plate 122 to maintain the structural stability of the swing frame 12.

[0052] As a preferred embodiment, the drive structure 13 includes a drive motor 131, a rotating shaft 132, and a worm gear reducer 133. The drive motor 131 is fixedly connected to the support frame 11. One end of the rotating shaft 132 is fixedly connected to the swing frame 12. One end of the worm gear reducer 133 is connected to the output end of the drive motor 131, and the other end is connected to the other end of the rotating shaft 132 away from the swing frame 12. The worm gear reducer 133 is used to drive the rotating shaft 132 to rotate, thereby realizing the large-angle swing of the swing frame 12. Existing wet enamel coating processes generally coat only one side. When two sides are coated, defects such as fish-scale cracking and excessive pinholes are prone to occur. When the rotation angle of the inner liner 100 is small, the enamel slurry inside the inner liner 100 is prone to flow out during the coating process, resulting in two-sided coating, which in turn leads to defects such as fish-scale cracking or excessive pinholes in the inner liner 100. Compared to using a cylinder to create a swing, the cylinder has a limited stroke and cannot rotate. The swing frame 12 can only rotate about 100° at most. The liner 100's opening 101 cannot face completely upwards. A considerable amount of glaze slurry needs to be injected into the liner to ensure the complete coating of the bottom of the liner. After the coating is completed, this excess glaze slurry needs to be poured out of the liner 100. When pouring, the excess glaze slurry is more likely to flow onto the outer surface of the liner 100, causing coating on both sides and resulting in appearance defects. In this embodiment of the invention, the drive structure 13 uses a drive motor 131 as the power source, combined with a worm gear reducer 133, which enables the swing frame 12 to rotate to an angle of 150° or more, making the inner liner 100 approximately upright. Only a small amount of glaze needs to be injected into the liner to completely cover the bottom of the inner surface. With the addition of rotation and swinging motions, the entire inner surface of the inner liner 100 can be completely coated. In the subsequent glaze pouring action, less glaze can flow out more smoothly without sticking to the outer surface and forming a two-sided coating. Moreover, compared with the gear transmission structure, the worm gear reducer 133 is compact and can transmit a larger torque, making it suitable for the inner liner coating equipment of this embodiment of the invention.

[0053] Furthermore, the inner liner coating equipment is equipped with two drive structures 13, which are symmetrically arranged on both sides of the swing frame 12. Two rotating shafts 132 are respectively fixedly connected to the two side plates 124. Specifically, a swing bearing is provided on the support frame 11 to support the rotating shafts 132. The two drive structures 13 increase the torque on the swing frame 12, making the tilting action of the swing frame 12 more stable and reliable, and preventing the swing frame 12 from tilting.

[0054] As a preferred embodiment, the glaze slurry circulation assembly 3 further includes a glaze slurry output pipe 32, a slurry storage tank 33, a glaze slurry return pipe 34, and a glaze slurry pump. One end of the glaze slurry output pipe 32 is connected to the glaze slurry tank 31, and the other end passes through the bottom plate 121 to connect to the inner liner 100. The slurry storage tank 33 is located below the swing frame 12 and is used to collect the glaze slurry flowing out of the inner liner 100. One end of the glaze slurry return pipe 34 is connected to the slurry storage tank 33, and the other end is connected to the glaze slurry tank 31. The glaze slurry pump is used to drive the flow of glaze slurry and can be a diaphragm pump.

[0055] Specifically, the base plate 121 is provided with a glaze slurry return hole 1211, which corresponds to and connects to the slurry storage tank 33. The slurry storage tank 33 is provided with a slurry return hole 331. During enamel coating, the glaze slurry in the glaze slurry output pipe 32 is injected into the inner cavity of the inner tank 100. After uniform enamel coating, excess glaze slurry flows from the tank opening 101 to the back plate 123 of the swing frame 12. When the swing frame 12 returns to the initial position, the glaze slurry flows along the back plate 123 into the base plate 121, enters the slurry storage tank 33 through the glaze slurry return hole 1211 of the base plate 121, and then flows back from the slurry storage tank 33 into the glaze slurry bucket 31, thereby realizing the recycling of glaze slurry.

[0056] As a preferred embodiment, the circulation pipeline 42 includes a first inlet pipe 421, a first return pipe 422, a second inlet pipe 423, and a second return pipe 424. The first inlet pipe 421 is used to inject cold water into the first water-cooled jacket, and the first return pipe 422 is used to return the cold water in the first water-cooled jacket. The second inlet pipe 423 is used to inject cold water into the second water-cooled jacket, and the second return pipe 424 is used to return the cold water in the second water-cooled jacket, thus ensuring the cooling effect of the first and second water-cooled jackets.

[0057] Furthermore, the first inlet pipe 421 also includes a first flexible hose section 4211, and the first return pipe 422 also includes a second flexible hose section 4221. When the swing frame 12 is flipped, the first flexible hose section 4211 and the second flexible hose section 4221 enable the first inlet pipe 421 and the first return pipe 422 to work normally without breaking, thus ensuring the cooling function of the first water-cooled jacket.

[0058] As a preferred embodiment, the glaze slurry output pipe 32 also includes a third flexible hose section 321. When the swing frame 12 is flipped, the third flexible hose section 321 can ensure that the glaze slurry output pipe 32 will not break, thus ensuring the normal supply of glaze slurry injected into the inner liner 100.

[0059] As a preferred embodiment, a third water-cooled jacket is also provided inside the slurry storage tank 33. The circulation pipeline 42 also includes a third water inlet pipe 425 and a third water return pipe 426. The third water inlet pipe 425 is used to inject cold water into the third water-cooled jacket, and the third water return pipe 426 is used to return the cold water in the third water-cooled jacket. The third water-cooled jacket cools the glaze slurry in the slurry storage tank 33. The cooled glaze slurry is pumped back to the glaze slurry tank 31 by the glaze slurry pump, completing one cycle and further enhancing the cooling effect.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An inner liner enamel coating device, characterized in that, include: The swing frame assembly (1) includes a support frame (11), a swing frame (12) and a drive structure (13). The swing frame (12) is rotatably connected to the support frame (11). The drive structure (13) is used to drive the swing frame (12) to swing back and forth. A first water-cooled interlayer is provided inside the swing frame (12). The coating assembly (2) includes an inner liner fixing frame (21) and a rotating mechanism (22). The inner liner fixing frame (21) is disposed on the swing frame (12). The inner liner fixing frame (21) is used to fix the inner liner (100), and the liner opening (101) of the inner liner (100) faces downward. The rotating mechanism (22) is used to drive the inner liner (100) to rotate around the axial direction. Glaze slurry circulation assembly (3), the glaze slurry circulation assembly (3) is used to inject glaze slurry into the inner liner (100), the glaze slurry circulation assembly (3) includes a glaze slurry tank (31), and a second water-cooled jacket is provided inside the glaze slurry tank (31); Water-cooled assembly (4), the water-cooled assembly (4) includes a chiller (41) and a circulation pipeline (42), one end of the circulation pipeline (42) is connected to the chiller (41), and the other end is connected to the first water-cooled jacket and the second water-cooled jacket in sequence; The circulation pipeline (42) includes: The first water inlet pipe (421) and the first water return pipe (422) are used to inject cold water into the first water-cooled jacket and the first water return pipe (422) is used to return the cold water in the first water-cooled jacket. The second water inlet pipe (423) and the second water return pipe (424) are used to inject cold water into the second water-cooled jacket and to return the cold water in the second water-cooled jacket.

2. The inner liner enamel coating equipment according to claim 1, characterized in that, The swing frame (12) includes: The base plate (121) is on which the inner liner fixing bracket (21) is disposed; A top plate (122) and a bottom plate (121) are arranged opposite to each other, and a rotating mechanism (22) is arranged on the top plate (122); A back plate (123) is fixedly connected to the bottom plate (121) and the top plate (122) at both ends, and the first water-cooled interlayer is disposed in the bottom plate (121) and the back plate (123); Two side plates (124) are symmetrically arranged on both sides of the back plate (123), and the two ends of the side plates (124) are respectively fixedly connected to the bottom plate (121) and the top plate (122).

3. The inner liner enamel coating equipment according to claim 2, characterized in that, The driving structure (13) includes: A drive motor (131) is fixedly connected to the support frame (11). A rotating shaft (132) is fixedly connected at one end to the swing frame (12). A worm gear reducer (133) is provided, with one end connected to the output end of the drive motor (131) and the other end connected to the other end of the rotating shaft (132) away from the swing frame (12). The worm gear reducer (133) is used to drive the rotating shaft (132) to rotate.

4. The inner liner enamel coating equipment according to claim 3, characterized in that, The inner liner coating equipment is provided with two drive structures (13), which are symmetrically arranged on both sides of the swing frame (12), and the two rotating shafts (132) are respectively fixedly connected to the two side plates (124).

5. The inner liner enamel coating equipment according to claim 2, characterized in that, The glaze slurry circulation component (3) also includes: Glaze slurry output pipe (32), one end of which is connected to the glaze slurry bucket (31), and the other end passes through the bottom plate (121) to connect to the inner liner (100). A slurry storage tank (33) is located below the swing frame (12) and is used to collect the glaze slurry flowing out of the inner liner (100). Glaze slurry return pipe (34), one end of which is connected to the slurry storage tank (33) and the other end is connected to the glaze slurry bucket (31). A glaze slurry pump, which is used to drive the flow of the glaze slurry.

6. The inner liner enamel coating equipment according to claim 5, characterized in that, The base plate (121) is provided with a glaze slurry return hole (1211), which can correspond to and connect to the slurry storage tank (33).

7. The inner liner enamel coating equipment according to claim 1, characterized in that, The first inlet pipe (421) further includes a first hose section (4211), and the first return pipe (422) further includes a second hose section (4221).

8. The liner coating equipment according to claim 5, characterized in that, The glaze slurry output pipe (32) also includes a third flexible hose section (321).

9. The inner liner enamel coating equipment according to claim 5, characterized in that, The slurry storage chamber (33) is also provided with a third water-cooled jacket. The circulation pipeline (42) also includes a third water inlet pipe (425) and a third water return pipe (426). The third water inlet pipe (425) is used to inject cold water into the third water-cooled jacket, and the third water return pipe (426) is used to return the cold water in the third water-cooled jacket.

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