A tinned strip quenching apparatus

Abstract

The utility model discloses a kind of tinned strip steel quenching equipment, including quenching spray device and auxiliary cooling device, quenching spray device includes second spray mechanism;Auxiliary cooling device includes first spray mechanism, first pump body and storage tank, storage tank is used to store cooling medium, the input end of first pump body is communicated with storage tank, the output end of first pump body is communicated with first spray mechanism, first spray mechanism is set to one side of second spray mechanism, and first spray mechanism is used to spray cooling medium to second spray mechanism.The utility model can effectively reduce the water mark of tinned strip steel, improve the processing quality of tinned strip steel, improve tinned strip steel processing consistency.

Description

Technical Field

[0001] This utility model relates to the field of tin-plated steel strip cooling technology, and in particular to a quenching equipment for tin-plated steel strip. Background Technology

[0002] In the production of tinplate, after the strip is coated with a tin layer, it needs to undergo rapid cooling, i.e., quenching, to precisely control the thickness of the tin-iron alloy layer. In existing technologies, some quenching processes for tin-plated strip are achieved using spray devices. These devices spray a cooling medium onto the tin-plated strip to quench it. Some spray devices use a circulating cooling medium; after heat exchange with the tin-plated strip, the cooling medium flows back to the cooling equipment, and after cooling, it flows back to the circulation tank for subsequent spraying onto the tin-plated strip, forming a cooling medium cycle. To meet spraying requirements, the circulation tank is generally large enough to store sufficient cooling medium. However, this can easily lead to large temperature differences within the circulation tank. Cooling media with large temperature differences, after spraying the tin-plated strip, can easily cause irregular dark spots, such as dotted or cloud-like patterns, i.e., water stains, affecting the quality of the tin-plated strip. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a quenching equipment for tin-plated steel strip, which effectively reduces water stains on tin-plated steel strip, improves the processing quality of tin-plated steel strip, and enhances the consistency of tin-plated steel processing.

[0004] A quenching device for tin-plated strip steel according to an embodiment of the present invention includes: The quenching spray device includes a second spraying mechanism; An auxiliary cooling device includes a first spray mechanism, a first pump body, and a storage tank. The storage tank is used to store the cooling medium. The input end of the first pump body is connected to the storage tank, and the output end of the first pump body is connected to the first spray mechanism. The first spray mechanism is located on one side of the second spray mechanism and is used to spray the cooling medium onto the second spray mechanism.

[0005] A quenching device for tin-plated strip steel according to an embodiment of the present utility model has at least the following beneficial effects: The first pump pumps the cooling medium stored in the storage tank to the first spray mechanism, which then sprays the cooling medium onto the second spray mechanism, providing auxiliary cooling. This secondary cooling effectively reduces the temperature of the cooling medium sprayed onto the tin-plated strip, especially when the second spray mechanism uses a relatively high-temperature cooling medium. Conversely, when the second spray mechanism uses a relatively low-temperature cooling medium, the temperature difference between the two is smaller, reducing the effectiveness of this secondary cooling. This principle reduces the temperature difference of the cooling medium sprayed by the second spray mechanism under different conditions and timeframes. By minimizing the temperature difference of the cooling medium sprayed onto the tin-plated strip, irregular water stains (dotted or cloud-like) can be effectively reduced, improving the processing quality and consistency of the tin-plated strip.

[0006] According to an embodiment of the present invention, a tin-plated strip quenching device includes a first spraying mechanism comprising a first spraying head and a first conveying pipe. The output end of the first pump body, the first conveying pipe and the first spraying head are connected in sequence. The first spraying head is spaced apart on one side of the second spraying mechanism.

[0007] According to an embodiment of the present invention, a tin-plated strip quenching device includes a first spraying mechanism that further includes a first collection tank, which is disposed below the first spraying head.

[0008] According to an embodiment of the present invention, a quenching device for tin-plated strip steel includes a first spraying mechanism that further includes a first return pipe, the two ends of which are respectively connected to a first collection tank and a storage tank.

[0009] According to an embodiment of the present invention, a quenching device for tin-plated strip steel has a first return pipe connected to the lower side of a first collection tank, the lower side of which is located above a storage tank.

[0010] According to an embodiment of the present invention, a quenching equipment for tin-plated strip steel includes a quenching spray device that further includes a second pump body and a circulation tank. The circulation tank is used to store the cooling medium, and the second pump body is disposed in the circulation tank. The output end of the second pump body is connected to the second spraying mechanism.

[0011] According to an embodiment of the present invention, a tin-plated strip quenching device includes a second spraying mechanism comprising a second spraying head and a second conveying pipe, wherein the output end of the second pump body, the second conveying pipe and the second spraying head are sequentially connected; the first spraying mechanism is capable of spraying cooling medium onto the second conveying pipe.

[0012] According to an embodiment of the present invention, a quenching device for tin-plated strip steel includes a second spraying mechanism that further comprises a second collecting tank, a second return pipe, and a second cooler. The second collecting tank is disposed below the second spray head, and the second collecting tank, the second return pipe, the second cooler, and the circulation tank are connected in sequence.

[0013] A tin-plated strip quenching device according to an embodiment of the present invention further includes a monitoring device, which is connected to a second spraying mechanism.

[0014] According to an embodiment of the present invention, a quenching device for tin-plated strip steel also includes a control device, which is electrically connected to the quenching spray device and the first pump body.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a tin-plated strip quenching equipment, a conveying device, and tin-plated strip according to an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0017] Explanation of reference numerals in the attached figures: Quenching spray device 100; second spray mechanism 110; second spray head 111; second conveying pipe 112; second collection tank 113; second return pipe 114; second cooler 115; second pump body 120; circulation tank 130; Auxiliary cooling device 200; first spray mechanism 210; first spray head 211; first conveying pipe 212; first collection tank 213; first return pipe 214; first cooler 215; first pump body 220; storage tank 230; Monitoring device 300; Control device 400; Conveying device 500; 600 tin-plated steel strip. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 this utility model.

[0020] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 3This utility model provides a quenching equipment for tin-plated strip steel, including a conveying device 500, a quenching spraying device 100, and an auxiliary cooling device 200. Specifically, the conveying device 500 includes multiple conveying rollers for conveying tin-plated strip steel 600 to be quenched. The quenching spraying device 100 includes a second spraying mechanism 110 for spraying cooling medium onto the tin-plated strip steel 600 conveyed by the conveying rollers. The auxiliary cooling device 200 includes a first spraying mechanism 210, a first pump body 220, and a storage tank 230. The storage tank 230 is used to store the cooling medium. The input end of the first pump body 220 is connected to the storage tank 230, and the output end of the first pump body 220 is connected to the first spraying mechanism 210. The first spraying mechanism 210 is disposed on one side of the second spraying mechanism 110 and is used to spray cooling medium onto the second spraying mechanism 110. Specifically, the input end of the first pump body 220 is connected to the lower part of the storage tank 230 via a pipe. The first pump body 220 can drive the cooling medium stored in the storage tank 230 to be transported to the first spray mechanism 210, and then sprayed to the second spray mechanism 110 through the first spray mechanism 210. Specifically, refer to Figure 3 A first pump body 220 is mounted on a storage tank 230. The first pump body 220 is a centrifugal pump, and its input end is connected to the lower part of the storage tank 230 via a pipe to extract the cooling medium stored in the storage tank 230. Specifically, the cooling medium is water, which is readily available and harmless to the equipment and the surrounding environment. Preferably, the cooling medium is purified deionized water.

[0023] The first pump body 220 pumps the cooling medium stored in the storage tank 230 to the first spray mechanism 210, and the cooling medium is sprayed from the first spray mechanism 210 to the second spray mechanism 110, thus providing auxiliary cooling to the second spray mechanism 110. By implementing secondary cooling on the second spray mechanism 110, the temperature of the cooling medium sprayed by the second spray mechanism 110 onto the tin-plated strip 600 can be effectively reduced. In particular, when the cooling medium sprayed by the second spray mechanism 110 is relatively high-temperature, the auxiliary secondary cooling can be performed more efficiently. When the cooling medium sprayed by the second spray mechanism 110 is relatively low-temperature, the effect of this auxiliary secondary cooling will be reduced because the temperature difference between the cooling medium of the first spray mechanism 210 and the cooling medium of the second spray mechanism 110 is small. This principle reduces the temperature difference of the cooling medium sprayed by the second spray mechanism 110 under different conditions and at different times. By reducing the temperature difference of the cooling medium sprayed onto the tin-plated strip 600, it is possible to effectively reduce the appearance of irregular water stains in the tin-plated strip 600, such as dotted or cloud-like patterns, and improve the processing quality of the tin-plated strip 600.

[0024] According to some embodiments of this application, the first spraying mechanism 210 includes a first spray head 211 and a first conveying pipe 212. The output end of the first pump body 220, the first conveying pipe 212, and the first spray head 211 are sequentially connected. The first spray heads 211 are spaced apart on one side of the second spraying mechanism 110. The first pump body 220 pumps the cooling medium sequentially to the first conveying pipe 212 and the first spray head 211, and finally sprays it to the second spraying mechanism 110 through the first spray head 211.

[0025] It is understood that in some other embodiments, multiple first spray heads 211 are provided, and all multiple first spray heads 211 are connected to the first delivery pipe 212. This can improve the spraying efficiency and spraying effect of the first spraying mechanism 210 on the second spraying mechanism 110, and further reduce the temperature difference of the cooling medium of the second spraying mechanism 110.

[0026] Furthermore, the first spraying mechanism 210 also includes a first collection tank 213, which is disposed below the first spray head 211. The first collection tank 213 is used to collect the cooling medium that has undergone heat exchange from the first spray head 211 to the second spraying mechanism 110 for reuse.

[0027] Furthermore, the first spraying mechanism 210 also includes a first return pipe 214, with its two ends connected to the first collection tank 213 and the storage tank 230, respectively. The cooling medium collected in the first collection tank 213 can flow back to the storage tank 230 through the first return pipe 214, forming a cooling medium circulation loop. In some embodiments, a submersible pump is installed in the first collection tank 213, and the submersible pump is connected to the first return pipe 214 to pump the cooling medium collected in the first collection tank 213 to the storage tank 230.

[0028] Furthermore, the first return pipe 214 is connected to the lower side of the first collection tank 213, which is located above the storage tank 230. Specifically, the lower side of the first collection tank 213 is at a higher elevation than the storage tank 230. The cooling medium collected in the first collection tank 213 can automatically flow back to the first return pipe 214 and the storage tank 230 under the action of gravity, thus realizing the return of the cooling medium.

[0029] It is understood that in some other embodiments, the first spray mechanism 210 further includes a first cooler 215, which is disposed between the first return pipe 214 and the storage tank 230, and is connected to both the first return pipe 214 and the storage tank 230. The first cooler 215 can be a chiller, a heat exchange coil, or other device capable of high-temperature cooling. The first cooler 215 can reduce the temperature of the cooling medium returning to the storage tank 230, thereby improving the cooling effect of the cooling medium of the auxiliary cooling device 200 on the second spray mechanism 110.

[0030] According to some embodiments of this application, the quenching spray device 100 further includes a second pump body 120 and a circulation tank 130. The circulation tank 130 is used to store the cooling medium, and the second pump body 120 is disposed in the circulation tank 130. The output end of the second pump body 120 is connected to the second spraying mechanism 110. The cooling medium is pumped to the second spraying mechanism 110 by the second pump body 120, and finally sprayed onto the tin-plated strip 600 through the second spraying mechanism 110 to achieve the quenching treatment of the tin-plated strip 600.

[0031] Preferably, the cooling medium of the quenching spray device 100 and the cooling medium of the auxiliary cooling device 200 are both purified deionized water.

[0032] Furthermore, the second spraying mechanism 110 includes a second spray head 111 and a second conveying pipe 112. The output end of the second pump body 120, the second conveying pipe 112, and the second spray head 111 are sequentially connected. The first spraying mechanism 210 can spray cooling medium onto the second conveying pipe 112. The second pump body 120 pumps the cooling medium sequentially to the second conveying pipe 112 and the second spray head 111, and finally sprays it onto the tin-plated strip 600 through the second spray head 111.

[0033] Specifically, the second spray head 111 is disposed above at least a portion of the second conveying pipe 112. The second spray head 111 can directly spray cooling medium onto at least a portion of the second conveying pipe 112 to cool at least a portion of the second conveying pipe 112, thereby achieving auxiliary secondary cooling of the cooling medium to be sprayed and quenched by the second conveying pipe 112.

[0034] Furthermore, the second spraying mechanism 110 also includes a second collection tank 113, a second return pipe 114, and a second cooler 115. The second collection tank 113 is located below the second spray head 111, and the second collection tank 113, the second return pipe 114, the second cooler 115, and the circulation tank 130 are connected in sequence. The second collection tank 113 is used to collect the cooling medium that has undergone quenching and heat exchange after being sprayed onto the tin-plated strip steel 600 by the second spray head 111. The cooling medium collected in the second collection tank 113 flows back to the circulation tank 130 through the second return pipe 114 and the second cooler 115, realizing a circulation loop for the cooling medium in the quenching spraying device 100, so as to achieve the reuse of the cooling medium. The second cooler 115 is used to cool the cooling medium after heat exchange. The second cooler 115 can be a chiller, a heat exchange coil, or other devices capable of achieving high-temperature cooling.

[0035] According to some embodiments of this application, a monitoring device 300 is also included, which is connected to the second spraying mechanism 110. (See also...) Figure 1 In some embodiments, the monitoring device 300 includes a temperature sensor disposed on the outside of the second collection tank 113 to monitor the temperature of the second collection tank 113. It is understood that the temperature sensor may also be disposed through the second collection tank 113, with its temperature probe located inside the second collection tank 113, to better monitor the temperature of the collected, heat-exchanged cooling medium within the second collection tank 113. Using a temperature sensor to monitor the temperature of the cooling medium collected in the second collection tank 113 allows operators to determine whether the cooling medium sprayed by the second spray head 111 before heat exchange is above normal values. If it is above normal values, the flow rate of the cooling medium output by the first pump body 220 can be increased.

[0036] According to some embodiments of this application, a control device 400 is also included, which is electrically connected to the quenching spray device 100 and the first pump body 220. Specifically, the control device 400 is electrically connected to the second pump body 120, the second cooler 115, the first pump body 220, and the first cooler 215 to control the second pump body 120, the second cooler 115, the first pump body 220, and the first cooler 215 respectively.

[0037] It is understood that in some other embodiments, the control device 400 includes an industrial touch screen, which is electrically connected to the second pump body 120, the second cooler 115, the first pump body 220, and the first cooler 215. The industrial touch screen is also electrically connected to a temperature sensor. The real-time temperature of the cooling medium in the second collection tank 113 monitored by the temperature sensor can be transmitted to the industrial touch screen. By preset threshold parameters on the industrial touch screen, automatic control can be achieved for the second pump body 120, the second cooler 115, the first pump body 220, and the first cooler 215. If the monitored cooling medium temperature is higher than the threshold, the cooling power of the first cooler 215 and the second cooler 115 is increased in time, and the flow rate of the cooling medium output by the first pump body 220 is increased at the same time. If it is necessary to adjust the process parameters of quenching tin-plated strip steel 600, the power of the second cooler 115 and the output flow rate of the second pump body 120 can be adjusted through the industrial touch screen to achieve process adjustment.

[0038] Working principle: The second pump body 120 pumps the cooling medium stored in the circulation tank 130 sequentially to the second delivery pipe 112 and the second spray head 111, and finally sprays it onto the tin-plated strip steel 600 through the second spray head 111 for quenching treatment. The cooling medium that has been heated by the tin-plated strip steel 600 falls into the second collection tank 113. The cooling medium collected in the second collection tank 113 flows back to the circulation tank 130 through the second return pipe 114 and the second cooler 115, realizing the recycling of the cooling medium of the quenching spray device 100. The first pump body 220 pumps the cooling medium stored in the storage tank 230 sequentially to the first delivery pipe 212 and the first spray head 211, and sprays it through the first spray head 211 onto at least a portion of the second delivery pipe 112 to cool at least a portion of the second delivery pipe 112; thereby cooling the cooling medium transported by the second delivery pipe 112 to adjust the temperature of the cooling medium sprayed by the second spray head 111; after the cooling medium has been heated by the second delivery pipe 112, it falls into the first collection tank 213 and then flows back to the storage tank 230 sequentially through the first return pipe 214 and the first cooler 215, realizing the recycling of the cooling medium of the auxiliary cooling device 200.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A quenching equipment for tin-plated strip steel, characterized in that, include: The quenching spray device (100) includes a second spraying mechanism (110). The auxiliary cooling device (200) includes a first spray mechanism (210), a first pump body (220), and a storage tank (230). The storage tank (230) is used to store the cooling medium. The input end of the first pump body (220) is connected to the storage tank (230), and the output end of the first pump body (220) is connected to the first spray mechanism (210). The first spray mechanism (210) is located on one side of the second spray mechanism (110) and is used to spray the cooling medium onto the second spray mechanism (110).

2. The quenching equipment for tin-plated strip steel according to claim 1, characterized in that, The first spraying mechanism (210) includes a first spray head (211) and a first conveying pipe (212). The output end of the first pump body (220), the first conveying pipe (212) and the first spray head (211) are connected in sequence. The first spray head (211) is spaced apart on one side of the second spraying mechanism (110).

3. The quenching equipment for tin-plated strip steel according to claim 2, characterized in that, The first spraying mechanism (210) further includes a first collection tank (213), which is located below the first spray head (211).

4. The quenching equipment for tin-plated strip steel according to claim 3, characterized in that, The first spraying mechanism (210) also includes a first return pipe (214), the two ends of which are connected to the first collection tank (213) and the storage tank (230), respectively.

5. The quenching equipment for tin-plated strip steel according to claim 4, characterized in that, The first return pipe (214) is connected to the lower side of the first collection tank (213), and the lower side of the first collection tank (213) is located above the storage box (230).

6. The quenching equipment for tin-plated strip steel according to claim 1, characterized in that, The quenching spray device (100) further includes a second pump body (120) and a circulation tank (130). The circulation tank (130) is used to store the cooling medium. The second pump body (120) is disposed in the circulation tank (130). The output end of the second pump body (120) is connected to the second spray mechanism (110).

7. The quenching equipment for tin-plated strip steel according to claim 6, characterized in that, The second spraying mechanism (110) includes a second spray head (111) and a second conveying pipe (112). The output end of the second pump body (120), the second conveying pipe (112) and the second spray head (111) are connected in sequence. The first spraying mechanism (210) can spray cooling medium onto the second conveying pipe (112).

8. The quenching equipment for tin-plated strip steel according to claim 7, characterized in that, The second spraying mechanism (110) also includes a second collection tank (113), a second return pipe (114) and a second cooler (115). The second collection tank (113) is located below the second spray head (111), and the second collection tank (113), the second return pipe (114), the second cooler (115) and the circulation tank (130) are connected in sequence.

9. The quenching equipment for tin-plated strip steel according to claim 1, characterized in that, It also includes a monitoring device (300) connected to the second spraying mechanism (110).

10. The quenching equipment for tin-plated strip steel according to claim 1, characterized in that, It also includes a control device (400), which is electrically connected to the quenching spray device (100) and the first pump body (220).

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