Strip cleaning system

Abstract

This application relates to a strip cleaning system, comprising: a rinsing device including a first rinsing tank, a second rinsing tank, ..., an Nth rinsing tank, with the Nth rinsing tank, the (N-1)th rinsing tank, ..., the first rinsing tank overflowing sequentially; the rinsing device further includes a first spraying mechanism and a second spraying mechanism, wherein the first spraying mechanism is configured as N-1 groups, and sprays the strip in the first rinsing tank, the second rinsing tank, ..., the (N-1)th rinsing tank, respectively. The first rinsing tank, the second rinsing tank, ..., the (N-1)th rinsing tank are all connected to one group of the first spraying mechanism. The second spraying mechanism is configured as one group, and sprays the strip in the Nth rinsing tank. The second spraying mechanism is connected to a water supply pipeline. This application allows the strip to be cleaned with fresh rinsing water each time it passes through the final rinsing tank. Even after prolonged system operation, the rinsing water supplied by the second spraying mechanism can maintain sufficient cleanliness, thereby ensuring the cleaning effect on the strip.

Description

Technical Field

[0001] This application relates to the field of strip cleaning technology, and in particular to a strip cleaning system. Background Technology

[0002] During the manufacturing process of steel strip, impurities are often present. For example, during the hot rolling process of carbon steel strip, iron oxide scale and impurities may be rolled into the base material. Therefore, it is usually necessary to clean the carbon steel strip to avoid defects during use. Existing cleaning systems for carbon steel strip typically include rinsing devices, which generally employ a 4-stage (tank) rinsing process. Specifically, the strip steel sequentially enters rinsing tanks #1, #2, #3, and #4. Four circulating pumps under the four rinsing tanks draw rinsing water from the bottom of the tanks and spray it onto the upper and lower surfaces of the strip steel through nozzles on the spray pipes above the rinsing tanks. The rinsing water comes from a rinsing water tank, which is supplied to rinsing tank #4 by a circulating pump. Due to the drop in height between adjacent rinsing tanks, the water overflows sequentially into rinsing tanks #3, #2, and #1 in the opposite direction of the strip steel's movement, and finally flows into the rinsing water tank through the overflow outlet of rinsing tank #1. The rinsing water in the rinsing water tank is then transported to the acid regeneration room by a circulating pump for the production of regenerated acid. However, after the system has been operating for a long time, the rinsing water in rinsing tank #4, located at the very bottom of the system, is difficult to maintain a sufficient level of cleanliness because it has already cleaned the strip. When it is pumped by the circulating pump to the nozzles on the spray pipes to continue cleaning the strip, it is difficult to guarantee the cleaning effect on the strip. Utility Model Content

[0003] Based on this, this application provides a strip cleaning system to improve the problem that the rinsing device in the prior art is difficult to guarantee the cleaning effect on the strip after the system has been operating for a long time.

[0004] This application provides a strip cleaning system, the strip cleaning system comprising:

[0005] A rinsing device includes a first rinsing tank, a second rinsing tank, ..., an Nth rinsing tank, where N is a positive integer not less than 2. The first rinsing tank, the second rinsing tank, ..., the Nth rinsing tank are arranged sequentially along the feeding direction of the strip, and the Nth rinsing tank, the (N-1)th rinsing tank, ..., the first rinsing tank overflow sequentially. The rinsing device also includes a first spraying mechanism and a second spraying mechanism. The first spraying mechanism is configured as N-1 groups, and sprays the strip in the first rinsing tank, the second rinsing tank, ..., the (N-1)th rinsing tank. The first rinsing tank, the second rinsing tank, ..., the (N-1)th rinsing tank are all connected to one group of the first spraying mechanism. The second spraying mechanism is configured as one group, and sprays the strip in the Nth rinsing tank. The second spraying mechanism is connected to a water supply pipeline.

[0006] In one embodiment, the first spraying mechanism includes a circulation pump and a first nozzle, the circulation pump being connected to the first rinsing tank, the second rinsing tank, ... or the (N-1)th rinsing tank, the first nozzle being connected to the circulation pump, and the second spraying mechanism including a second nozzle.

[0007] In one embodiment, the rinsing device further includes a water replenishment pipeline connected to the water supply pipeline, the water replenishment pipeline being used at least to replenish water to the (N-1)th rinsing tank.

[0008] In one embodiment, the rinsing device further includes a first squeeze roller, which is configured as a group N-1. The first squeeze rollers in the group N-1 are respectively located at the N-1th rinsing tank...the second rinsing tank and the first rinsing tank, and are respectively corresponding to the first spray mechanism in the group N-1. The first squeeze roller is located downstream of the first spray mechanism corresponding to it along the feeding direction of the strip. When the strip is fed, it passes through the first squeeze roller in the group N-1.

[0009] In one embodiment, the strip cleaning system further includes a scrubbing device disposed upstream of the rinsing device along the feeding direction of the strip. The rinsing device further includes a second squeeze roller disposed on one side upstream of the first rinsing tank along the feeding direction of the strip, and the strip also passes through the second squeeze roller during feeding.

[0010] In one embodiment, the washing device includes a washing tank and at least one set of brush rollers disposed in the washing tank, and the strip material also passes through the brush rollers during feeding.

[0011] In one embodiment, the scrubbing device further includes a third squeeze roller, which is disposed on the upstream side of the scrubbing tank along the feeding direction of the strip, and the strip also passes through the third squeeze roller during feeding.

[0012] In one embodiment, the strip cleaning system further includes a purging device disposed downstream of the rinsing device along the feeding direction of the strip.

[0013] In one embodiment, the rinsing device further includes a fourth squeeze roller, which is disposed at the Nth rinsing tank and is located downstream of the second spraying mechanism along the feeding direction of the strip. The strip passes through the fourth squeeze roller during feeding.

[0014] In one embodiment, the rinsing device further includes partitions, and N-1 partitions are provided. The first rinsing tank, the second rinsing tank, ... the Nth rinsing tank are separated by N-1 partitions, and the height of the N-1 partitions increases sequentially along the feeding direction of the strip.

[0015] This application sets up a multi-stage rinsing tank for rinsing the strip, and sets up a spray mechanism in the last rinsing tank that is different from the other rinsing tanks. That is, the Nth rinsing tank is set up as a second spray mechanism connected to the water supply pipeline. This allows the strip to be cleaned with fresh rinsing water when it passes through the last rinsing tank. Even after the system has been operating for a long time, the rinsing water supplied by the second spray mechanism can still ensure a sufficient level of cleanliness, thereby ensuring the cleaning effect on the strip. Attached Figure Description

[0016] Figure 1 This is a simplified schematic diagram of a strip cleaning system provided in an embodiment of this application;

[0017] Figure 2 A simplified schematic diagram of the rinsing apparatus of a strip cleaning system provided in an embodiment of this application;

[0018] Figure 3 A front view of a strip cleaning system provided in an embodiment of this application;

[0019] Figure 4 This is a simplified schematic diagram of a scrubbing device for a strip cleaning system provided in an embodiment of this application.

[0020] Reference numerals: 100, rinsing device; 110, first rinsing tank; 111, overflow port; 120, second rinsing tank; 130, third rinsing tank; 140, first spraying mechanism; 141, circulating pump; 142, first nozzle; 150, second spraying mechanism; 151, second nozzle; 160, water supply pipeline; 170, first squeeze roller; 180, second squeeze roller; 190, fourth squeeze roller; 200, water supply pipeline; 300, brushing device; 310, brushing tank; 320, brush roller; 330, third squeeze roller; 400, blowing device; 410, air nozzle; 500, partition. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They 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, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] This application provides a strip cleaning system, such as Figures 1 to 4 As shown, the strip cleaning system includes:

[0026] The rinsing device 100 includes a first rinsing tank 110, a second rinsing tank 120, ..., an Nth rinsing tank, where N is a positive integer not less than 2. The first rinsing tank 110, the second rinsing tank 120, ..., the Nth rinsing tank are arranged sequentially along the feeding direction of the strip, and the Nth rinsing tank, the (N-1)th rinsing tank, ..., the first rinsing tank 110 overflow sequentially. The rinsing device 100 also includes a first spraying mechanism 140 and a second spraying mechanism 150. The first spraying mechanism 140 is configured as an N-1 group, and sprays the strip in the first rinsing tank 110, the second rinsing tank 120, ..., the (N-1)th rinsing tank respectively. The first rinsing tank 110, the second rinsing tank 120, ..., the (N-1)th rinsing tank are all connected to a group of first spraying mechanisms 140. The second spraying mechanism 150 is configured as a group, and sprays the strip in the Nth rinsing tank. The second spraying mechanism 150 is connected to a water supply pipeline 200.

[0027] like Figure 1 and Figure 2As shown in this embodiment, the rinsing device 100 may include multiple rinsing tanks, namely, a first rinsing tank 110, a second rinsing tank 120, ..., an Nth rinsing tank, where N can be a positive integer not less than 2; in this embodiment, N = 3 is used as an example. Of course, in some embodiments, N can also be 2, 4, or 5, etc. In this embodiment, the first rinsing tank 110, the second rinsing tank 120, and the third rinsing tank 130 are arranged sequentially along the feeding direction of the strip, which can be horizontal. Simultaneously, the first rinsing tank 110, the second rinsing tank 120, and the third rinsing tank 130 overflow sequentially.

[0028] like Figure 2 As shown, in this embodiment, the rinsing device 100 may further include a first spraying mechanism 140 and a second spraying mechanism 150. The first spraying mechanism 140 and the second spraying mechanism 150 can spray rinsing water onto the strip, and the rinsing water may be desalinated water. By rinsing the strip with rinsing water, iron powder, impurities, etc. generated by the strong abrasive action of the brush roller 320 of the brush washing tank 310 on the carbon steel strip can be cleaned away. The first spraying mechanism 140 can be set to N-1 groups; in this embodiment, two groups of first spraying mechanisms are provided, and the two groups of spraying mechanisms can spray the strip in the first rinsing tank 110 and the second rinsing tank 120 respectively. At the same time, the two groups of spraying mechanisms are connected to the first rinsing tank 110 and the second rinsing tank 120 respectively, that is, the two groups of spraying mechanisms spray the rinsing water in the first rinsing tank 110 and the second rinsing tank 120 onto the strip respectively. The second spraying mechanism 150 can be configured as a group, which sprays the strip in the third rinsing tank 130. Unlike the first spraying mechanism 140, the second spraying mechanism 150 is connected to the water supply pipeline 200, which is a separate pipeline used to supply new rinsing water to the second spraying mechanism 150.

[0029] In this embodiment, before the strip is fed, the third rinsing tank 130 is filled with water through the first spray mechanism 140, which sprays rinsing water into the third rinsing tank 130. When the third rinsing tank 130 is full of rinsing water, it overflows into the second rinsing tank 120. When the second rinsing tank 120 is full of rinsing water, it overflows into the first rinsing tank 110. When the strip is fed and passes through the first rinsing tank 110, the second rinsing tank 120 and the third rinsing tank 130 in sequence, one set of first spraying mechanisms 140 sprays the rinsing water in the first rinsing tank 110 onto the strip, another set of first spraying mechanisms 140 sprays the rinsing water in the second rinsing tank 120 onto the strip, and the second spraying mechanism 150 sprays the new rinsing water supplied by the water supply pipeline 200 onto the strip in the third rinsing tank 130, so as to realize multi-stage rinsing of the strip.

[0030] It is understood that this application, by setting up a multi-stage rinsing tank for rinsing the strip, and setting a different spray mechanism in the last rinsing tank than the other rinsing tanks, that is, the Nth rinsing tank is set as a second spray mechanism 150 connected to the water supply pipeline 200, can ensure that the strip can be cleaned with fresh rinsing water when passing through the last rinsing tank. Even after the system has been operating for a long time, the rinsing water supplied by the second spray mechanism 150 can ensure a sufficient degree of cleanliness, thereby ensuring the cleaning effect on the strip.

[0031] Specifically, the first spraying mechanism 140 includes a circulation pump 141 and a first nozzle 142. The circulation pump 141 is connected to the first rinsing tank 110, the second rinsing tank 120, ... or the (N-1)th rinsing tank. The first nozzle 142 is connected to the circulation pump 141. The second spraying mechanism 150 includes a second nozzle 151.

[0032] like Figure 2 As shown in this embodiment, the first spraying mechanism 140 may include a circulating pump 141 and first nozzles 142. The first nozzles 142 may be a pair, arranged opposite each other on both sides of the strip to clean it from all angles. Both first nozzles 142 are connected to the circulating pump 141 via pipelines, and the circulating pump 141 is connected to either the first rinsing tank 110 or the second rinsing tank 120 via pipelines. When the circulating pump 141 operates, it pumps the rinsing water from the first rinsing tank 110 or the second rinsing tank 120 to the pair of first nozzles 142, which then spray the rinsing water onto the strip. It should be noted that valves may be installed on the pipelines connecting the pair of first nozzles 142 to the circulating pump 141, and on the pipelines connecting the circulating pump 141 to the first rinsing tank 110 or the second rinsing tank 120. These valves allow for the control of the pipeline's opening and closing, thereby adjusting the cleaning effect of each rinsing stage.

[0033] In this embodiment, the second spraying mechanism 150 may include a second nozzle 151; similarly, the second nozzle 151 may be configured as a pair, with the pair of second nozzles 151 arranged opposite each other on both sides of the strip. The pair of second nozzles 151 may be directly connected to the water supply pipeline 200, and the pair of second nozzles 151 may spray the new rinsing water supplied by the water supply pipeline 200 directly onto the strip or into the third rinsing tank 130. Similarly, a valve may also be provided on the water supply pipeline 200 to control the on / off state and opening degree of the water supply pipeline 200.

[0034] It is understood that in this embodiment, by setting the first spraying mechanism 140 as a circulating pump 141 and a first nozzle 142, it is convenient to pump out the rinsing water in the first rinsing tank 110, the second rinsing tank 120... the N-1th rinsing tank and spray it onto the strip. By setting the second spraying mechanism 150 as a second nozzle 151, it is convenient to spray the new rinsing water supplied by the water supply pipeline 200 onto the strip, so as to achieve multi-stage rinsing of the strip, while ensuring that the cleaning effect of the last stage of rinsing does not decrease as the system's operating time increases.

[0035] Specifically, the rinsing device 100 also includes a water replenishment pipe 160, which is connected to the water supply pipe 200 and is used to replenish water to the (N-1)th rinsing tank.

[0036] like Figure 2 As shown in this embodiment, the rinsing device 100 may further include a water supply pipe 160, which may be connected to the water supply pipe 200. Similarly, a valve may be provided on the water supply pipe 160 to control its opening and closing. When the valve is open, the water supply pipe 160 can also be used to supply new rinsing water. The water supply pipe 160 may have one or more outlets; this embodiment uses the former as an example. In this case, the outlet of the water supply pipe 160 faces the second rinsing tank 120 and is used to replenish water into the second rinsing tank 120.

[0037] In some embodiments, when multiple outlets of the water supply pipe 160 are provided, the outlets of the multiple water supply pipes 160 can be directed toward the N-1 rinsing tank ... the second rinsing tank 120 in sequence to supply water to the N-1 rinsing tank ... the second rinsing tank 120 respectively.

[0038] It is understood that by setting up a water supply pipeline 160 for replenishing water to the N-1th rinsing tank, this embodiment can not only increase the filling speed of rinsing water in each rinsing tank before the strip is fed, but also adjust the cleaning effect of at least the N-1th rinsing tank when cleaning the strip.

[0039] Specifically, the rinsing device 100 also includes a first squeeze roller 170, which is set as a group N-1. The first squeeze rollers 170 of the group N-1 are respectively located at the N-1 rinsing tank... the second rinsing tank 120 and the first rinsing tank 110, and are respectively corresponding to the first spray mechanism 140 of the group N-1. The first squeeze rollers 170 are located downstream of the corresponding first spray mechanism 140 along the feeding direction of the strip, and the strip passes between the first squeeze rollers 170 of the group N-1 when it is fed.

[0040] like Figure 2 and Figure 3As shown in this embodiment, by way of example, the rinsing device 100 may further include a first squeeze roller 170. The first squeeze rollers 170 are arranged in pairs, and a pair of first squeeze rollers 170 constitutes a group. The pair of first squeeze rollers 170 can be respectively arranged on both sides of the strip, and when the strip is fed, it passes between the pair of first squeeze rollers 170. In this embodiment, there are two groups of first squeeze rollers 170. The two groups of first squeeze rollers 170 are respectively arranged directly above the first rinsing tank 110 and the second rinsing tank 120, and the two groups of first squeeze rollers 170 correspond to the two groups of first spraying mechanisms 140. The first squeeze rollers 170 are located downstream of the first spraying mechanism 140 along the feeding direction of the strip.

[0041] In this embodiment, after a set of first spraying mechanisms 140 sprays the strip in the first rinsing tank 110, a set of first squeeze rollers 170 corresponding to the first rinsing tank 110 can squeeze off the rinsing water on the surface of the strip, so that another set of first spraying mechanisms 140 can spray the strip in the second rinsing tank 120. Similarly, after another set of first spraying mechanisms 140 sprays the strip in the second rinsing tank 120, a set of first squeeze rollers 170 corresponding to the second rinsing tank 120 can also squeeze dry the surface of the strip, so that the second spraying mechanism 150 can spray the strip in the third rinsing tank 130.

[0042] It is understood that, in this embodiment, by setting a set of first squeeze rollers 170 at each of the N-1 rinsing tank... the second rinsing tank 120 and the first rinsing tank 110, and by setting the first squeeze rollers 170 downstream of the first spraying mechanism 140 along the feeding direction of the strip, the rinsing water in the two adjacent rinsing tanks can be prevented from contaminating each other, thereby ensuring the cleaning effect of multi-stage rinsing of the strip.

[0043] Specifically, the strip cleaning system also includes a scrubbing device 300, which is located upstream of the rinsing device 100 along the feeding direction of the strip. The rinsing device 100 also includes a second squeeze roller 180, which is located on one side upstream of the first rinsing tank 110 along the feeding direction of the strip. The strip also passes between the second squeeze rollers 180 during feeding.

[0044] like Figure 1 and Figure 3As shown in this embodiment, the strip cleaning system may further include a scrubbing device 300, which is positioned upstream of the rinsing device 100 along the strip feeding direction. That is, before multi-stage rinsing, the strip can be scrubbed by the scrubbing device 300. Scrubbing removes defects such as rolled-in iron oxide scale and impurities from the strip surface. The rinsing device 100 may also include second squeeze rollers 180, which can be a pair, positioned on both sides of the strip. When the strip is fed, it passes between the pair of second squeeze rollers 180. The pair of second squeeze rollers 180 are positioned upstream of the first rinsing tank 110 along the strip feeding direction. After the scrubbing device 300 scrubs the strip, the second squeeze rollers 180 squeeze the surface of the strip dry, facilitating multi-stage rinsing by the rinsing device 100.

[0045] It is understood that this embodiment uses a scrubbing device 300 to remove defects such as iron oxide scale and impurities rolled into the strip surface, thereby improving the cleaning effect on the strip. In this embodiment, the second squeeze roller 180 is provided to prevent the cleaning water in the scrubbing device 300 and the rinsing device 100 from contaminating each other. At the same time, the second squeeze roller 180 can also seal the water mist generated in the scrubbing device 300.

[0046] More specifically, the washing device 300 includes a washing tank 310 and at least one set of brush rollers 320 disposed in the washing tank 310, and the strip material also passes between the brush rollers 320 during feeding.

[0047] like Figure 3 and Figure 4 As shown in this embodiment, the scrubbing device 300 may include a scrubbing trough 310 and brush rollers 320. At least one set of brush rollers 320 may be configured within the scrubbing trough 310, and each pair of brush rollers 320 may be configured as a pair, with each pair of brush rollers 320 positioned on opposite sides of the strip. When the strip is fed, it passes between the pair of brush rollers 320. The scrubbing device 300 in this embodiment may be a re-scrubbing device for re-scrubbing the strip. Specifically, it may include two sets of special brush rollers 320, each brush roller 320 having its own drive device, such as a motor. Cooling water may circulate inside the brush rollers 320, and four water spray pipes may be provided on the outside of the brush rollers 320, corresponding to the two sets of brush rollers 320 respectively, to ensure the scrubbing effect.

[0048] In this embodiment, the strip cleaning system may further include a tank demisting system, which may include a fan. The fan can be connected to the scrubbing tank 310 and the various rinsing tanks via pipelines. By drawing air out of the scrubbing tank 310 and the various rinsing tanks through the fan, water mist can be removed from the scrubbing tank 310 and the various rinsing tanks.

[0049] It is understood that by configuring the washing device 300 as a washing tank 310 and at least one set of brush rollers 320, this embodiment can ensure the cleaning effect of the washing device 300 on the strip.

[0050] More specifically, the scrubbing device 300 also includes a third squeeze roller 330, which is arranged on the upstream side of the scrubbing tank 310 along the feeding direction of the strip, and the strip also passes through the third squeeze roller 330 when it is fed.

[0051] like Figure 3 and Figure 4 As shown in this embodiment, by way of example, the scrubbing device 300 may further include a third squeeze roller 330. The third squeeze roller 330 may also be configured as a pair, and the pair of third squeeze rollers 330 may be disposed on both sides of the strip. When the strip is fed, it also passes between the pair of third squeeze rollers 330. The pair of third squeeze rollers 330 may be disposed on the upstream side of the scrubbing tank 310 along the feeding direction of the strip, i.e., at the entrance of the scrubbing tank 310.

[0052] It is understood that by setting a third squeezing roller 330 on the upstream side of the scrubbing tank 310 in this embodiment, not only can the cleaning water in the scrubbing tank 310 be less likely to be contaminated, but the water mist generated by the high-speed rotation of the brush roller 320 can also be blocked in the scrubbing tank 310 to ensure the cleanliness of the working environment.

[0053] Specifically, the strip cleaning system also includes a purging device 400, which is located downstream of the rinsing device 100 along the feeding direction of the strip.

[0054] like Figure 3 As shown in this embodiment, the strip cleaning system may further include a blowing device 400, which is positioned downstream of the rinsing device 100 along the strip feeding direction. The blowing device 400 may include air nozzles 410, which are connected to an air source to dry residual moisture on the strip surface. The air nozzles 410 may be arranged in pairs, with each pair positioned on opposite sides of the strip. The air nozzles 410 may also be arranged in several groups at intervals along the strip feeding direction; this embodiment uses three groups as an example. The blowing direction of the air nozzles 410 may be inclined and opposite to the strip feeding direction.

[0055] It is understood that by setting up the blowing device 400 in this embodiment, the residual moisture on the surface of the strip can be blown dry, thereby further improving the cleaning effect on the strip.

[0056] More specifically, the rinsing device 100 also includes a fourth squeeze roller 190, which is located at the Nth rinsing tank. The fourth squeeze roller 190 is located downstream of the second spraying mechanism 150 along the feeding direction of the strip, and the strip passes through the fourth squeeze roller 190 during feeding.

[0057] like Figure 2 and Figure 3 As shown in this embodiment, by way of example, the rinsing device 100 may further include a fourth squeeze roller 190. The fourth squeeze roller 190 may also be configured as a pair, with the pair of fourth squeeze rollers 190 disposed on both sides of the strip. The strip can pass between the pair of fourth squeeze rollers 190 during feeding. The fourth squeeze roller 190 may be disposed directly above the third rinsing tank 130 and downstream of the second spraying mechanism 150 along the feeding direction of the strip. After the second spraying mechanism 150 sprays the strip, the fourth squeeze roller 190 can squeeze out the rinsing water from the surface of the strip to reduce the residue of rinsing water on the surface of the strip.

[0058] It is understood that by providing a fourth squeeze roller 190 at the Nth rinsing tank and placing the fourth squeeze roller 190 downstream of the second rinsing mechanism, the residual rinsing water when the strip flows to the blowing structure can be reduced, and the fourth rinsing mechanism can also seal the outlet side of the rinsing device 100.

[0059] Specifically, the rinsing device 100 also includes partitions 500, and there are N-1 partitions 500. The first rinsing tank 110, the second rinsing tank 120... the Nth rinsing tank are separated by N-1 partitions 500, and the height of the N-1 partitions 500 increases sequentially along the feeding direction of the strip.

[0060] like Figure 2 As shown in this embodiment, by way of example, the first rinsing tank 110, the second rinsing tank 120, and the third rinsing tank 130 can be separated by two partitions 500, that is, each partition 500 is disposed between two adjacent rinsing tanks. The partitions 500 can all be rectangular and can all be disposed. Along the feeding direction of the strip, the height of the partitions 500 increases sequentially, that is, the height of the partition 500 between the third rinsing tank 130 and the second rinsing tank 120, and the height of the partition 500 between the second rinsing tank 120 and the first rinsing tank 110 decreases sequentially. When rinsing water is injected into the third rinsing tank 130 through the second spray mechanism 150, the aforementioned partitions 500 can cause the third rinsing tank 130, the second rinsing tank 120, and the first rinsing tank 110 to form a stepped overflow.

[0061] like Figure 2 As shown, in this embodiment, the first rinsing tank 110 may also be provided with an overflow port 111. The height of the overflow port 111 on the first rinsing tank 110 may be less than the height of the partition 500 between the second rinsing tank 120 and the first rinsing tank 110. When the water level of the rinsing water in the third rinsing tank 130 reaches the overflow port 111, it can be discharged out of the third rinsing tank 130 through the overflow port 111. Specifically, the overflow port 111 may be connected to a rinsing water treatment system to achieve proper treatment of the cleaned rinsing water.

[0062] It is understood that in this embodiment, by setting N-1 partitions 500 and increasing the height of the N-1 partitions 500 sequentially along the feeding direction of the strip, it is convenient for the third rinsing tank 130, the second rinsing tank 120 and the first rinsing tank 110 to form a stepped overflow, thereby facilitating the multi-stage rinsing of the strip by the rinsing device 100.

[0063] The implementation principle of the strip cleaning system provided in this application embodiment is as follows:

[0064] During cleaning, the strip is first fed into the washing device 300. Inside the washing device 300, the strip first passes between a pair of third squeeze rollers 330, which squeeze the surface of the strip dry while simultaneously sealing the inlet side of the washing tank 310. The strip then passes between at least a pair of brush rollers 320, which remove defects such as iron oxide scale and impurities rolled into the strip surface.

[0065] The strip is then fed into the rinsing device 100. Before the strip is fed into the rinsing device 100, the third rinsing tank 130 is filled with water through the first spray mechanism 140, which sprays rinsing water into the third rinsing tank 130. When the third rinsing tank 130 is full of rinsing water, it overflows into the second rinsing tank 120. When the second rinsing tank 120 is full of rinsing water, it overflows into the first rinsing tank 110. Inside the rinsing device 100, the strip first passes between a pair of second squeeze rollers 180. The second squeeze rollers 180 can squeeze the surface of the strip dry to prevent cross-contamination of the cleaning water in the scrubbing tank 310 and the rinsing tank. At the same time, the second squeeze rollers 180 can seal the outlet side of the scrubbing tank 310. The strip then passes through the first rinsing tank 110, the second rinsing tank 120, and the third rinsing tank 130 in sequence. During this process, a first spraying mechanism 140 sprays the rinsing water in the first rinsing tank 110 onto the strip, another first spraying mechanism 140 sprays the rinsing water in the second rinsing tank 120 onto the strip, and a second spraying mechanism 150 sprays the new rinsing water supplied by the water supply pipeline 200 onto the strip in the third rinsing tank 130, so as to achieve multi-stage rinsing of the strip.

[0066] Next, the strip passes between a pair of fourth squeeze rollers 190. The pair of fourth squeeze rollers 190 squeezes out the rinsing water from the surface of the strip, reducing rinsing water residue on the strip surface. Simultaneously, the fourth rinsing mechanism seals the outlet side of the rinsing device 100. The strip is then fed into the blowing device 400, which blows away any remaining moisture on the strip surface, further improving the cleaning effect.

[0067] This application sets up a multi-stage rinsing tank for rinsing the strip, and sets up a spray mechanism in the last rinsing tank that is different from the other rinsing tanks. That is, the Nth rinsing tank is set up as a second spray mechanism 150 connected to the water supply pipeline 200. This allows the strip to be cleaned with fresh rinsing water when it passes through the last rinsing tank. Even after the system has been operating for a long time, the rinsing water supplied by the second spray mechanism 150 can still ensure a sufficient degree of cleanliness, thereby ensuring the cleaning effect on the strip.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A strip cleaning system, characterized in that, The strip cleaning system includes: A rinsing device (100) includes a first rinsing tank (110), a second rinsing tank (120), ..., an Nth rinsing tank, where N is a positive integer not less than 2. The first rinsing tank (110), the second rinsing tank (120), ..., the Nth rinsing tank are arranged sequentially along the feeding direction of the strip, and the Nth rinsing tank, the (N-1)th rinsing tank, ..., the first rinsing tank (110) overflow sequentially. The rinsing device (100) also includes a first spraying mechanism (140) and a second spraying mechanism (150). The structure (140) is set as N-1 groups, and the strip is sprayed in the first rinsing tank (110), the second rinsing tank (120) ... the N-1th rinsing tank respectively. The first rinsing tank (110), the second rinsing tank (120) ... the N-1th rinsing tank are all connected to a group of the first spraying mechanism (140). The second spraying mechanism (150) is set as a group, and the strip is sprayed in the Nth rinsing tank. The second spraying mechanism (150) is connected to the water supply pipeline (200).

2. The strip cleaning system according to claim 1, characterized in that, The first spraying mechanism (140) includes a circulation pump (141) and a first nozzle (142). The circulation pump (141) is connected to the first rinsing tank (110), the second rinsing tank (120) ... or the N-1th rinsing tank. The first nozzle (142) is connected to the circulation pump (141). The second spraying mechanism (150) includes a second nozzle (151).

3. The strip cleaning system according to claim 1, characterized in that, The rinsing device (100) further includes a water replenishment pipe (160), which is connected to the water supply pipe (200) and is used at least to replenish water to the (N-1)th rinsing tank.

4. The strip cleaning system according to claim 1, characterized in that, The rinsing device (100) further includes a first squeeze roller (170), which is set as a group N-1. The first squeeze rollers (170) of the group N-1 are respectively located at the N-1 rinsing tank... the second rinsing tank (120) and the first rinsing tank (110), and respectively correspond to the first spray mechanism (140) of the group N-1. The first squeeze roller (170) is located downstream of the first spray mechanism (140) corresponding to it along the feeding direction of the strip. When the strip is fed, it passes through the first squeeze roller (170) of the group N-1.

5. The strip cleaning system according to claim 1, characterized in that, The strip cleaning system further includes a scrubbing device (300) which is located upstream of the rinsing device (100) along the feeding direction of the strip. The rinsing device (100) also includes a second squeeze roller (180) which is located upstream of the first rinsing tank (110) along the feeding direction of the strip. The strip also passes through the second squeeze roller (180) during feeding.

6. The strip cleaning system according to claim 5, characterized in that, The washing device (300) includes a washing tank (310) and at least one set of brush rollers (320) disposed in the washing tank (310), and the strip material also passes through the brush rollers (320) during feeding.

7. The strip cleaning system according to claim 6, characterized in that, The washing device (300) further includes a third squeezing roller (330), which is arranged on the upstream side of the washing tank (310) along the feeding direction of the strip, and the strip also passes through the third squeezing roller (330) when being fed.

8. The strip cleaning system according to claim 1, characterized in that, The strip cleaning system further includes a purging device (400) which is located downstream of the rinsing device (100) along the feeding direction of the strip.

9. The strip cleaning system according to claim 8, characterized in that, The rinsing device (100) further includes a fourth squeeze roller (190), which is disposed at the Nth rinsing tank. The fourth squeeze roller (190) is disposed downstream of the second spraying mechanism (150) along the feeding direction of the strip. The strip passes through the fourth squeeze roller (190) during feeding.

10. The strip cleaning system according to claim 1, characterized in that, The rinsing device (100) further includes partitions (500), and there are N-1 partitions (500). The first rinsing tank (110), the second rinsing tank (120) ... the Nth rinsing tank are separated by N-1 partitions (500), and the height of the N-1 partitions (500) increases sequentially along the feeding direction of the strip.

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