Stainless steel cold-rolled strip surface pickling dephosphorization device

Abstract

The invention relates to the technical field of pickling devices, in particular to a stainless steel cold-rolled strip surface pickling and dephosphorization device. The discharge pipe is fixedly connected to the bottom of the pickling tank; the main pipe is fixedly connected to the pickling tank; the spraying pipe A is arranged in the pickling tank; the connecting pipe is arranged on the pickling tank and connected with the spraying pipe A and the main pipe, and the spraying pipe A is rotationally and slidably connected with the connecting pipe; the spraying pipe B is fixedly connected into the pickling tank and fixedly connected with the main pipe, and the stainless steel cold-rolled strip sequentially penetrates through the spraying pipe B and the spraying pipe A when moving; and the brush roller is fixedly connected to the spraying pipe A and can make contact with the stainless steel cold-rolled strip. The stainless steel cold-rolled strip is subjected to acid pickling in a spraying mode, waste liquid obtained after acid pickling is completed is directly drained away, and therefore the reaction capacity of acid liquor and a phosphorus layer is guaranteed fundamentally, the spraying stage and the scrubbing stage are arranged, and it is guaranteed that the stainless steel cold-rolled strip is fully treated through the acid liquor.

Description

Technical Field

[0001] The invention relates to the technical field of pickling devices, in particular to a device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip. Background Art

[0002] Stainless steel strip is a long and narrow ultra-thin steel plate produced to meet industrial needs; stainless steel cold-rolled strip is made by plastic deformation of stainless steel blanks by cold rolling mills. During the process, the stainless steel blanks are strongly squeezed by the rollers, which reduces their thickness and increases their length until the required target thickness and width are reached. Stainless steel cold-rolled strip has high precision and strength and excellent processing performance.

[0003] After the rolling process is completed, the stainless steel cold-rolled strip needs to be pickled and dephosphorized to remove the phosphorus skin (i.e., oxide layer) on its surface. The currently commonly used pickling method is immersion, that is, the stainless steel cold-rolled strip is immersed in acid using an existing pickling device. In this way, the acid can fully react with the oxide on the surface of the stainless steel cold-rolled strip, thereby achieving the effect of removing the phosphorus layer. However, as the amount of oxide dissolved in the acid gradually increases, the concentration of the acid will gradually decrease, which will cause the acid to react with the oxide for a longer time, resulting in a decrease in the efficiency of dephosphorization of the stainless steel cold-rolled strip; and if the acid is replaced in order to ensure the processing efficiency, it will cause a certain degree of waste of acid. Therefore, the existing pickling device has usage defects. Summary of the invention

[0004] The present invention is to solve the technical problems raised in the above background technology and provide a device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip.

[0005] In order to solve the above technical problems, the present invention provides a surface pickling and dephosphorization device for a stainless steel cold-rolled strip, and the technical solution includes: a pickling tank; a discharge pipe fixedly connected to the bottom of the pickling tank; a main pipe fixedly connected to the pickling tank; a spray pipe A arranged in the pickling tank, and the spray pipe A is provided with two rows; a connecting pipe arranged on the pickling tank, the connecting pipe connecting the spray pipe A and the main pipe, and the spray pipe A is rotatably and slidably connected to the connecting pipe; a spray pipe B fixedly connected in the pickling tank, the spray pipe B is fixedly connected to the main pipe, and the spray pipe B is provided with two rows, and the stainless steel cold-rolled strip will successively pass through the spray pipe B and the spray pipe A when moving; a brush roller fixedly connected to the spray pipe A, and the brush roller can contact the stainless steel cold-rolled strip.

[0006] Optionally, it also includes: a cover rotatably connected to the pickling tank, and the cover is transparent.

[0007] Optionally, it also includes: a mounting frame arranged on the side wall of the pickling tank; a spline shaft rotatably connected to the mounting frame, the spline shaft is provided with two rows, corresponding to the spray pipe A; a spline sleeve fixedly connected to the spray pipe A, the spline sleeve is key-connected to the spline shaft; a threaded ring fixedly connected to the spray pipe A, the thread on the threaded ring is a reciprocating thread; a control ring fixedly connected to the mounting frame, the control ring is provided with two rows, respectively meshing with the threaded rings on the two rows of spray pipes A; a motor fixedly connected to the pickling tank; and a transmission member arranged between the output end of the motor and the two rows of spline shafts.

[0008] Optionally, the connecting pipes respectively connected to the two rows of spray pipes A are slidably connected, the connecting pipes are slidably connected to the main pipes, and the mounting frame is slidably connected to the pickling tank; a rotating rod rotatably connected to the bottom of the pickling tank; a control unit for controlling the spray pipes A is arranged in the pickling tank, the control unit is connected to the spray pipes A, and the control unit is provided with at least one group; bevel gears are arranged on the control unit and on the rotating rod, and the bevel gears cooperate with each other, and the rotation of the rotating rod will control the operation of the control unit;

[0009] The control part includes: a mounting plate fixedly connected in the pickling tank; a threaded rod rotatably connected to the mounting plate, the threaded rod is provided with two sections of threads in opposite directions; a guide rod fixedly connected to the mounting plate; a fixed plate arranged between the threaded rod and the guide rod, two fixed plates are arranged, the two fixed plates are respectively rotatably and slidably connected with two rows of spray pipes A, the two fixed plates are slidably connected with the guide rod, the two fixed plates are respectively threadedly connected with two sections of threads of the threaded rod, the rotation of the threaded rod will control the two rows of spray pipes A to move synchronously and in opposite directions, the bevel gear arranged on the control part is fixedly connected to the threaded rod, and the rotation of the rotating rod will control the rotation of the threaded rod.

[0010] Optionally, it also includes: a mounting block A fixedly connected to both sides of the inner wall of the pickling tank; a mounting ring slidably connected to the mounting block A, and each mounting block A is provided with two mounting rings; a pressure roller rotatably connected between the two mounting rings, the two mounting rings are respectively located on the two mounting blocks A, and the two pressure rollers are parallel; a spring A fixedly connected between the mounting ring and the mounting block A.

[0011] Optionally, the mounting block A, the mounting ring, the pressure roller and the spring A form a guide assembly, and the guide assembly is provided in at least three groups.

[0012] Optionally, it further comprises: an acid removal assembly arranged on one of the guide assemblies, and the cold-rolled stainless steel strip will successively pass through the spray pipe A and the acid removal assembly when moving;

[0013] The acid removal assembly comprises: a fixing frame fixedly connected between two mounting rings on two mounting blocks A; a scraper fixedly connected to the fixing frame, wherein the end of the scraper is flush with the contact surface of the pressure roller and the stainless steel cold-rolled strip.

[0014] Optionally, it also includes: a mounting block B fixedly connected to the pickling tank; a mounting head slidably connected to the mounting block B; a stop block rotatably connected to the mounting head for limiting the position of the stainless steel cold-rolled strip, the stop block being set to an hourglass shape; and a spring B fixedly connected between the mounting head and the mounting block B.

[0015] The beneficial effects are as follows: the present invention pickles the stainless steel cold-rolled strip by setting a spraying method, and the waste liquid after the pickling is directly discharged, thereby ensuring the ability of the acid solution to react with the phosphorus layer from the source, and setting a spraying stage and a scrubbing stage to ensure that the stainless steel cold-rolled strip is fully treated by the acid solution. Therefore, compared with the prior art, the use of the present invention can ensure the pickling efficiency of the stainless steel cold-rolled strip and reduce the waste of acid solution, and the use effect is better; the present invention sets the spacing between the brush rollers to be adjustable, so that the present invention can be adjusted according to the size of the stainless steel cold-rolled strip with pickling, thereby ensuring the pickling effect of the present invention on the stainless steel cold-rolled strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the front side of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the back side of the present invention.

[0018] Figure 3 It is a schematic diagram of the position structure of the spray assembly in the pickling tank of the present invention.

[0019] Figure 4 It is a schematic diagram of the connection structure of the spray assembly in the present invention.

[0020] Figure 5 It is a schematic diagram of the position structure of the scrubbing component on the pickling tank in the present invention.

[0021] Figure 6 This is a separation diagram of the connection structure of the scrubbing component in the present invention.

[0022] Figure 7 It is a schematic diagram of the connection structure between the regulating component and the spraying component in the present invention.

[0023] Figure 8 This is a separation diagram of the connection structure between the adjustment component and the spray component in the present invention.

[0024] Fig. 9 It is a schematic diagram of the position structure of the guide assembly in the pickling tank of the present invention.

[0025] Fig.10 It is a schematic diagram of the connection structure of the guide assembly in the present invention.

[0026] Fig.11 It is a schematic diagram of the connection structure between the acid removal component and the guide component in the present invention.

[0027] Fig.12 It is a front view of the acid removal component and the guide component in the present invention.

[0028] Fig.13 It is a schematic diagram of the position structure of the limiting component in the present invention.

[0029] Fig.14 It is a schematic diagram of the connection structure of the limiting component in the present invention.

[0030] The marks in the accompanying drawings are: 101-pickling tank, 102-port, 103-cap, 104-discharge pipe, 105-filter, 201-main pipe, 202-spray pipe A, 203-connecting pipe, 204-spray pipe B, 301-brush roller, 302-mounting frame, 303-spline shaft, 304-spline sleeve, 305-threaded ring, 306-control ring, 307-motor, 308-transmission member, 401-rotating rod, 402-fixed plate, 403-mounting plate, 404-threaded rod, 405-bevel gear, 406-guide rod, 501-mounting block A, 502-mounting ring, 503-pressure roller, 504-spring A, 601-fixed frame, 602-scraper, 701-mounting block B, 702-block, 703-spring B, 704-mounting head. DETAILED DESCRIPTION

[0031] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects of the present invention, the following is a detailed description in combination with the specific embodiments listed and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention.

[0032] Embodiment 1: A stainless steel cold-rolled strip surface pickling and dephosphorization device, see Figure 1-Figure 2, including: a pickling tank 101, in which the stainless steel cold-rolled strip will be pickled, and ports 102 are provided on the left and right sides of the pickling tank 101. The stainless steel cold-rolled strip will enter the pickling tank 101 from the right port 102 and move out of the pickling tank 101 from the left port 102, so that the stainless steel cold-rolled strip moves from right to left in the pickling tank 101; a cover 103 rotatably installed on the top of the pickling tank 101, and the cover 103 is used to close the pickling tank 101 to prevent acid from flying In order to prevent splashing, the safety of the pickling tank 101 during use is improved. The cover 103 is made of a transparent material, such as glass, so that the operation status in the pickling tank 101 can be observed; a discharge pipe 104 is fixedly installed at the bottom of the pickling tank 101, and the discharge pipe 104 is used to discharge the pickling waste liquid so as to uniformly collect and treat the pickling waste liquid; a filter screen 105 is fixedly installed at the pipe mouth of the discharge pipe 104, and the filter screen 105 is used to separate solid impurities from the pickling waste liquid so as to subsequently perform harmless treatment on the pickling waste liquid.

[0033] See also Figure 3-Figure 4 , also includes: a spray assembly arranged on the pickling tank 101, the spray assembly is used to spray acid on the surface of the stainless steel cold-rolled strip for pickling treatment, the spray assembly includes: a main pipe 201 fixedly installed on the rear side of the pickling tank 101, the main pipe 201 is used to connect the acid; a spray pipe A202 arranged in the pickling tank 101, the spray pipe A202 is provided with two rows, three in each row, a total of six, the stainless steel cold-rolled strip will pass between the two rows of spray pipes A202, the two rows of spray pipes A202 respectively spray acid on the upper and lower surfaces of the stainless steel cold-rolled strip; a connecting pipe 203 slidably installed at the rear of the pickling tank 101, the connecting pipe 203 is provided with two groups, the two groups of connecting pipes 203 are respectively connected to the two rows of spray pipes A202 so as to rotate and slide through the connecting ring, and the connection The ring is rotatably installed on the connecting pipe 203, the spray pipe A202 is slidably installed with the connecting ring, the two groups of connecting pipes 203 are slidably installed between each other, the upper connecting pipe 203 is slidably installed with the main pipe 201, and the acid liquid connected to the main pipe 201 will be transported to each spray pipe A202 through the connecting pipe 203; the spray pipe B204 is fixedly installed in the pickling tank 101, and the spray pipe B204 is provided with two rows, upper and lower, and the stainless steel cold-rolled strip will pass between the two rows of spray pipes B204. The spray pipe B204 is fixedly installed with the main pipe 201, and the acid liquid connected to the main pipe 201 can be transported to the spray pipe B204. The spray pipe B204 is located on the right side of the spray pipe A202. When the stainless steel cold-rolled strip moves in the pickling tank 101, it will successively pass through the spray pipe B204 and the spray pipe A202.

[0034] The stainless steel cold-rolled strip is passed through the spray assembly and is subjected to two-stage pickling treatment within the range of spray pipe A202 and spray pipe B204, respectively, so that the acid can fully react with the oxide layer on the stainless steel cold-rolled strip to ensure the pickling effect.

[0035] See also Figure 5-Figure 6 , further comprising: a scrubbing assembly arranged on the pickling tank 101, the scrubbing assembly is used to cooperate with the acid liquid to rub the surface of the stainless steel cold-rolled strip, thereby improving the pickling effect of the acid liquid, the scrubbing assembly comprises: a brush roller 301 fixedly mounted on the spray pipe A202, the acid liquid sprayed from the spray pipe A202 can pass through the brush roller 301, and the brush roller 301 can make frictional contact with the stainless steel cold-rolled strip; a mounting frame 302 slidably mounted on the front side of the pickling tank 101; a spline shaft 303 rotatably mounted on the mounting frame 302, the spline shaft 303 is provided with two rows of upper and lower, three in each row, a total of six; a spline sleeve 304 fixedly mounted on the front section of each spray pipe A202, each spline sleeve 304 is respectively connected to each spline shaft 303, the spline shaft 303 can control the rotation of the spray pipe A202 through the spline sleeve 304, and the spray pipe A202 can produce relative displacement with the spline shaft 303; a spline sleeve 304 fixedly mounted on the spray pipe A202 A threaded ring 305 at the front end of the shower pipe A202, the thread arranged on the threaded ring 305 is a reciprocating thread; a control ring 306 fixedly mounted on the mounting frame 302, the control ring 306 is arranged in two rows, three in each row, a total of six, each control ring 306 is engaged with each threaded ring 305, when the shower pipe A202 rotates, the control ring 306 can control the shower pipe A202 to move forward and backward through the threaded ring 305; a motor 307 fixedly mounted on the pickling tank 101; a transmission member 308 arranged between the output end of the motor 307 and the spline shaft 303, the transmission member 308 is a transmission belt group, the motor 307 is respectively connected to the upper and lower rows of the leftmost spline shaft 303 with a group of transmission members 308, and a group of transmission members 308 is connected between two adjacent spline shafts 303, so that the motor 307 can control all the spline shafts 303 to rotate synchronously through the transmission member 308.

[0036] During the pickling process of the stainless steel cold-rolled strip, the motor 307 is started, and the spray pipe A202 and the brush roller 301 are controlled to rotate through the transmission member 308, the spline shaft 303 and the spline sleeve 304. At the same time, the threaded ring 305 rotates relative to the control ring 306, so that the spray pipe A202 and the brush roller 301 can move back and forth, so that the brush roller 301 can dynamically scrub the stainless steel cold-rolled strip, thereby improving the dephosphorization effect on the stainless steel cold-rolled strip.

[0037] See also Figure 7-Figure 8, further comprising: an adjusting component arranged on the pickling tank 101, the adjusting component being connected to the spraying component to adjust the spacing between the two rows of spraying pipes A202, so that the spraying component can be suitable for cold-rolled stainless steel strips of different thicknesses, the adjusting component comprising: a rotating rod 401 rotatably installed at the bottom of the pickling tank 101; a control unit arranged in the pickling tank 101 for controlling the spraying pipe A202, the control unit having two groups, which are arranged at the front and rear sides of the interior of the pickling tank 101, respectively, and connected to the front and rear ends of the spraying pipe A202; a bevel gear 405 arranged on the control unit and on the rotating rod 401, the bevel gears 405 cooperate with each other, and the rotating rod 401 rotates to control the operation of the control unit;

[0038] The control unit includes: a mounting plate 403 fixedly mounted on the inner wall of the pickling tank 101; a threaded rod 404 rotatably mounted on the mounting plate 403, and two sections of threads in opposite directions are arranged on the threaded rod 404; a guide rod 406 fixedly mounted on the mounting plate 403; a fixed plate 402 arranged between the threaded rod 404 and the guide rod 406, and two fixed plates 402 are arranged, and the two fixed plates 402 are slidably mounted on the guide rod 406, and the two fixed plates 402 are respectively rotatably and slidably mounted with the ends of the two rows of spray pipes A202 through connecting rings, and the connecting rings are rotatably mounted on the fixed plate 402, and the spray pipes A202 are slidably mounted on the connecting rings. Therefore, the rotation of the two threaded rods 404 can control the two rows of spray pipes A202 to move synchronously and in opposite directions, and the bevel gear 405 arranged on the control unit is fixedly mounted on the threaded rod 404, and the rotation of the rotating rod 401 will control the rotation of the threaded rod 404.

[0039] A bevel gear 405 is fixedly mounted on the threaded rod 404 and the rotating rod 401. A transmission shaft is arranged in the pickling tank 101. A transmission shaft is arranged between the rotating rod 401 and each threaded rod 404. Bevel gears 405 are fixedly mounted on both ends of the transmission shaft. The bevel gear 405 on the rotating rod 401 meshes with the bevel gear 405 at one end of the transmission shaft, and the bevel gear 405 at the other end of the transmission shaft meshes with the bevel gear 405 on the threaded rod 404. Therefore, by rotating the rotating rod 401, the rotation of all the threaded rods 404 can be synchronously controlled through the transmission of the transmission shaft and the bevel gear 405.

[0040] In the process of brush roller 301 scrubbing the stainless steel cold-rolled strip, due to the difference in thickness between different types of stainless steel cold-rolled strips, if the spacing between the brush rollers 301 is fixed, the brush rollers 301 will not be able to fully contact with the stainless steel cold-rolled strips of different thicknesses. Therefore, an adjustment component is provided to adjust the spacing between the two rows of brush rollers 301 by rotating the rotating rod 401 to ensure the dephosphorization effect of the brush rollers 301 on the stainless steel cold-rolled strip.

[0041] See also Figure 9-10, and also includes: a guide component arranged in the pickling tank 101, the guide component is used to limit the position of the stainless steel cold-rolled strip and guide it so that the spray component and the scrubbing component can better pickle it. The pickling tank 101 is provided with eight groups of guide components, and the guide components include: a mounting block A501 fixedly mounted on the front and rear inner walls of the pickling tank 101; a mounting ring 502 slidably mounted on the mounting block A501, and each mounting block A501 is provided with two upper and lower mounting rings 502; a pressure roller 503 rotatably mounted between the two mounting rings 502 on the same side of the upper and lower sides, and each group of guide components is provided with two pressure rollers 503, and the two pressure rollers 503 are parallel to each other; a spring A504 fixedly mounted between the mounting ring 502 and the mounting block A501, and the spring A504 makes the two pressure rollers 503 close to each other.

[0042] The stainless steel cold-rolled strip is passed through the two pressure rollers 503 of each group of guide assemblies in turn. The spring A504 makes the pressure roller 503 close to the stainless steel cold-rolled strip and restricts its position. Therefore, the stainless steel cold-rolled strip will move along the trajectory of the guide assembly, so that it can smoothly and stably pass through the spray assembly and the scrubbing assembly for pickling treatment, thereby improving the use effect of the device.

[0043] See also Figure 11-Figure 12 , and also includes: an acid removal component arranged on one of the guide components, the acid removal component is used to remove residual acid on the stainless steel cold-rolled strip, the acid removal component is located on the left side of the spray component, so that the stainless steel cold-rolled strip passes through the spray component and the acid removal component in sequence, and the acid removal component includes: a fixed frame 601 fixedly installed between two mounting rings 502 on the same side of the upper and lower sides, and the two fixed frames 601 will move with the movement of the two pressure rollers 503; a scraper 602 fixedly installed on the fixed frame 601, and the end of the scraper 602 is flush with the contact surface of the pressure roller 503 and the stainless steel cold-rolled strip.

[0044] After the stainless steel cold-rolled strip passes through the guide assembly and the acid removal assembly, under the action of spring A504, the pressure roller 503 is close to the stainless steel cold-rolled strip, and the scraper 602 is also close to the stainless steel cold-rolled strip. Therefore, when the stainless steel cold-rolled strip moves, it is displaced with the scraper 602, which causes the scraper 602 to scrape off the residual acid on the stainless steel cold-rolled strip, preventing the acid from being brought out of the pickling tank 101 by the stainless steel cold-rolled strip and splashing, thereby improving the safety of the device.

[0045] See also Figure 13-14, and also includes: a limit assembly arranged on the left and right sides of the pickling tank 101, and four groups of limit assemblies are arranged, which are respectively located at the front and rear sides of the two openings 102 to limit the front and rear positions of the stainless steel cold-rolled strip in the pickling tank 101, and the limit assembly includes: a mounting block B701 fixedly mounted on the pickling tank 101; a mounting head 704 slidably mounted on the upper and lower ends of the mounting block B701; a stop block 702 rotatably mounted between the two mounting heads 704, and the stop block 702 is set to an hourglass shape; a spring B703 fixedly mounted between the mounting head 704 and the mounting block B701, and the spring B703 is sleeved on the connecting shaft of the mounting head 704.

[0046] When the stainless steel cold-rolled strip passes through the passage 102, the spring B703 causes the stop block 702 to abut against the front and rear sides of the stainless steel cold-rolled strip, thereby limiting the front and rear positions of the stainless steel cold-rolled strip so that the stainless steel cold-rolled strip can be centered, preventing it from being displaced and unable to be fully rubbed by the brush roller 301, thereby ensuring the use effect of the scrubbing assembly; the stop block 702 is set to an hourglass shape to keep the stainless steel cold-rolled strip in the middle of the passage 102, thereby preventing the stainless steel cold-rolled strip from rubbing and wearing against the pickling tank 101.

[0047] When using the device, open the cover 103, pass the stainless steel cold-rolled strip into the device from the right opening 102, follow the guides of each group of guide components, pass through the spray pipe B204, spray pipe A202 and acid removal components in sequence, and finally pass out of the device from the left opening 102;

[0048] After the above-mentioned stainless steel cold-rolled strip is loaded, the rotating rod 401 is rotated to adjust the distance between the upper and lower rows of brush rollers 301 according to the thickness of the stainless steel cold-rolled strip, so that the brush rollers 301 can effectively contact the stainless steel cold-rolled strip, ensuring the brush rollers 301 have a good scrubbing effect on the stainless steel cold-rolled strip. At this time, the preliminary preparation work is completed;

[0049] Acid solution is connected to the main pipe 201, and the motor 307 is started. The acid solution is sprayed from the spray pipe A202 and the spray pipe B204, and sprayed on the upper and lower surfaces of the stainless steel cold-rolled strip. The stainless steel cold-rolled strip undergoes the first round of pickling when passing through the spray pipe B204, and then undergoes the second round of pickling through the spray pipe A202. During this round of pickling, the stainless steel cold-rolled strip is scrubbed by the rotating and forward and backward moving brush roller 301. In this way, double pickling can ensure the dephosphorization effect of the device on the stainless steel cold-rolled strip.

[0050] The stainless steel cold-rolled strip that has completed pickling will pass through the scraper 602, and the scraper 602 will process the residual acid on it, so that the waste acid liquid can be peeled off from the stainless steel cold-rolled strip, preventing the acid from being carried out of the pickling tank 101, and facilitating the subsequent cleaning and collection of the stainless steel cold-rolled strip; finally, the stainless steel cold-rolled strip is transported out of the pickling tank 101, completing the pickling treatment, and the acid is discharged through the discharge pipe 104 for unified collection and treatment.

[0051] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A stainless steel cold-rolled strip surface pickling and dephosphorization device, characterized in that: include: A pickling tank (101); a discharge pipe (104) fixedly connected to the bottom of the pickling tank (101) for discharging pickling waste liquid; a main pipe (201) fixedly connected to the pickling tank (101), the main pipe (201) being used to receive acid liquid; a spray pipe A (202) arranged in the pickling tank (101), the spray pipe A (202) being provided with two rows to spray acid liquid onto the upper and lower surfaces of the stainless steel cold-rolled strip respectively; a connecting pipe (203) arranged in the pickling tank (101), the connecting pipe (203) connecting the spray pipe A (202) and the main pipe (201) to transport the acid liquid received by the main pipe (201) into the spray pipe A (202), the spray pipe A (202) and the connecting pipe (203) The invention relates to a stainless steel cold-rolled strip having a plurality of cold-rolled strips and a plurality of cold-rolled strips. The stainless steel cold-rolled strips are connected to the stainless steel cold-rolled strips by rotating and sliding connection; a spray pipe B (204) fixedly connected to the pickling tank (101); the spray pipe B (204) is fixedly connected to the main pipe (201) to transport the acid solution connected to the main pipe (201) to the spray pipe B (204); the spray pipe B (204) is provided with two rows to spray the acid solution to the upper and lower surfaces of the stainless steel cold-rolled strip respectively; the stainless steel cold-rolled strips will successively pass through the spray pipe B (204) and the spray pipe A (202) when moving; a brush roller (301) fixedly connected to the spray pipe A (202); the brush roller (301) can contact the stainless steel cold-rolled strip; the rotation and movement of the spray pipe A (202) will control the brush roller (301) to cooperate with the acid solution to perform friction dephosphorization on the stainless steel cold-rolled strip.

2. The device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip according to claim 1, characterized in that: Also includes: A cover (103) is rotatably connected to the pickling tank (101) and is used to close the pickling tank (101), and the cover (103) is transparent.

3. The device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip according to claim 2, characterized in that: Also includes: A mounting frame (302) is arranged on the side wall of the pickling tank (101); a spline shaft (303) rotatably connected to the mounting frame (302), the spline shaft (303) being arranged in two rows corresponding to the spray pipe A (202); a spline sleeve (304) fixedly connected to the spray pipe A (202), the spline sleeve (304) being key-connected to the spline shaft (303); a threaded ring (305) fixedly connected to the spray pipe A (202), the thread on the threaded ring (305) being a reciprocating thread; a spline sleeve (304) fixedly connected to the spray pipe A (202) 2), the control ring (306) is provided with two rows, respectively meshing with the threaded rings (305) on the two rows of spray pipes A (202), when the spray pipes A (202) rotate, the control ring (306) controls the spray pipes A (202) to move back and forth; a motor (307) fixedly connected to the pickling tank (101); a transmission member (308) provided between the output end of the motor (307) and the two rows of spline shafts (303), the motor (307) controls the two rows of spline shafts (303) to rotate synchronously.

4. A stainless steel cold-rolled strip surface pickling and dephosphorization device according to claim 3, characterized in that: The connecting pipes (203) respectively connected to the two rows of spray pipes A (202) are slidably connected to each other, the connecting pipes (203) are slidably connected to the main pipes (201), and the mounting frame (302) is slidably connected to the pickling tank (101); further comprising: a rotating rod (401) rotatably connected to the bottom of the pickling tank (101); a control unit arranged in the pickling tank (101) for controlling the spray pipes A (202), the control unit being connected to the spray pipes A202, and at least one group of the control unit being arranged; bevel gears (405) arranged on the control unit and on the rotating rod (401), the bevel gears (405) being matched with each other, and the rotating rod (401) rotating to control the operation of the control unit; The control unit comprises: a mounting plate (403) fixedly connected to the pickling tank (101); a threaded rod (404) rotatably connected to the mounting plate (403), wherein the threaded rod (404) is provided with two sections of threads in opposite directions; a guide rod (406) fixedly connected to the mounting plate (403); a fixed plate (402) arranged between the threaded rod (404) and the guide rod (406), wherein two fixed plates (402) are provided, and the two fixed plates (402) are respectively connected to The two rows of spray pipes A (202) are connected in a rotating and sliding manner, the two fixed plates (402) are connected in a sliding manner to the guide rod (406), the two fixed plates (402) are respectively connected in a threaded manner to two sections of threads of the threaded rod (404), the threaded rod (404) rotates to control the two rows of spray pipes A (202) to move synchronously and in opposite directions, the bevel gear (405) arranged on the control part is fixedly connected to the threaded rod (404), and the rotating rod (401) rotates to control the threaded rod (404) to rotate.

5. The device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip according to claim 4, characterized in that: Also includes: A mounting block A (501) fixedly connected to both sides of the inner wall of the pickling tank (101); a mounting ring (502) slidably connected to the mounting block A (501), wherein each mounting block A (501) is provided with two mounting rings (502); a pressure roller (503) rotatably connected between the two mounting rings (502), wherein the two mounting rings (502) are respectively located on the two mounting blocks A (501), and the two pressure rollers (503) are parallel; and a spring A (504) fixedly connected between the mounting ring (502) and the mounting block A (501), wherein the spring A (504) brings the two pressure rollers (503) close to each other.

6. The device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip according to claim 5, characterized in that: The mounting block A (501), the mounting ring (502), the pressure roller (503) and the spring A (504) form a guide assembly, and the guide assembly is provided in at least three groups.

7. The device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip according to claim 6, characterized in that: Also includes: An acid removal assembly is arranged on one of the guide assemblies, and the cold-rolled stainless steel strip will successively pass through the spray pipe A (202) and the acid removal assembly when moving; The acid removal assembly comprises: a fixing frame (601) fixedly connected between two mounting rings (502) on two mounting blocks A (501); a scraper (602) fixedly connected to the fixing frame (601), wherein the end of the scraper (602) and the contact surface of the pressure roller (503) and the stainless steel cold-rolled strip are flush.

8. The device for pickling and dephosphorizing the surface of a stainless steel cold-rolled strip according to claim 7, characterized in that: Also includes: A mounting block B (701) fixedly connected to a pickling tank (101); a mounting head (704) slidably connected to the mounting block B (701); a stop block (702) rotatably connected to the mounting head (704) for limiting the position of a stainless steel cold-rolled strip, wherein the stop block (702) is set to be hourglass-shaped; and a spring B (703) fixedly connected between the mounting head (704) and the mounting block B (701).

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