Pickling surface treatment device for beta-type titanium alloy hot continuous rolling plate coil

Abstract

The utility model discloses a pickling surface treatment device for a beta-type titanium alloy hot continuous rolling plate coil. The pickling surface treatment device comprises a pickling tank, a cleaning device and a collecting device, two groups of upper carrier rollers and two groups of lower carrier rollers are arranged in the pickling tank; a water outlet is formed in the bottom of the pickling tank; cleaning openings are formed in two ends of the pickling tank; a vent hole is formed in the top of the pickling tank; the cleaning device is arranged at one end of the pickling tank; the collecting device is connected with the pickling tank and the filter tank. The cleaning device is used for cleaning oxide skin on the surface of the titanium alloy plate, so that impurities such as the oxide skin entering a pickling solution are effectively reduced; meanwhile, the collecting device cleans impurities entering the pickling solution, and the situation that the impurities continuously react with the pickling solution, and consequently the concentration of the pickling solution is reduced is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of hot rolling technology, and specifically relates to a pickling surface treatment device for β-type titanium alloy hot continuous rolling plate coils. Background Technology

[0002] β-type titanium alloys are metastable β-phase alloys obtained by solution quenching in the β-phase region. They have good cold formability, high strength, and good corrosion resistance, and have certain application prospects in aerospace, marine engineering and other fields. In the hot rolling production line of β-type titanium alloy coils, pickling is usually used to remove the oxide scale and other impurities formed on the surface of the hot rolling coils during the hot rolling process, thereby improving the surface quality of the β-type titanium alloy hot rolling coils and improving their weldability and corrosion resistance.

[0003] A search revealed a hot-rolled strip steel pickling device with existing technology announcement number CN221608206U. This device uses a first motor and a lead screw to drive an upper roller to press the hot-rolled strip steel downwards into the pickling tank for pickling. Simultaneously, a second motor is activated to control the roller to crush the oxide layer on the surface of the strip steel during the transport process. Subsequently, a cleaning mechanism is controlled to clean the surface of the strip steel, and a coiling device is used to coil the crushed and pickled strip steel. However, the oxide scale crushed by this device falls into the pickling tank and reacts continuously with the pickling solution in the tank, causing the concentration of the pickling solution to drop rapidly.

[0004] A search revealed a hot-rolled steel plate pickling device with existing technology announcement number CN221480092U. This device transports the steel strip into the pickling tank via a conveying assembly, then activates a filter assembly to filter the pickling solution while simultaneously conveying it to a spray assembly for spray pickling of the steel strip. At the same time, a brushing assembly works in conjunction with the spray assembly to clean the surface of the steel strip using the pickling solution. However, the pickling tank lacks other auxiliary collection devices, resulting in some oxide scale settling at one end of the tank. This scale is difficult to remove from the filter assembly at the other end of the tank due to the flow of the pickling solution, causing a continuous decrease in the concentration of the pickling solution. This necessitates the acidity adjustment mechanism to continuously replenish the pickling solution, leading to resource waste. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pickling surface treatment device for β-type titanium alloy hot-rolled plate coils. This invention uses a cleaning device to clean the oxide scale on the surface of the titanium alloy plate, effectively reducing the entry of oxide scale and other impurities into the pickling solution; at the same time, a collection device cleans up the impurities that have entered the pickling solution, preventing the impurities from continuously reacting with the pickling solution and causing a decrease in the concentration of the pickling solution.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pickling surface treatment device for β-type titanium alloy hot-rolled coils includes a pickling tank, a cleaning device, and a collecting device. The pickling tank is equipped with two sets of upper rollers and two sets of lower rollers, a drain outlet at the bottom, and cleaning outlets at both ends. Two sets of filter tanks with ventilation holes at the top are fixedly connected to both sides of the pickling tank. The cleaning device is located at one end of the pickling tank. The collecting device is connected to the pickling tank and the filter tanks.

[0008] The cleaning device includes a support base, a support frame, a connecting rod, a protective mechanism, a grinding mechanism, and a blowing mechanism. The two ends of the support frame are fixedly connected to the pickling tank via connecting rods, and the bottom is fixedly connected to a pair of support bases located at one end of the pickling tank. A pair of protective mechanisms are provided, and the pair of protective mechanisms are symmetrically fixedly connected to the top and bottom of the support frame. The grinding mechanism is located on one side of the protective mechanism, and the blowing mechanism is located inside the protective mechanism.

[0009] The protective mechanism includes a protective cover, electric push cylinder I, connecting holes, air pipe I, connecting plate I, and support rollers. Several electric push cylinders I are provided, and their cylinder bodies are symmetrically fixedly connected to both ends of the support frame, with their extended ends respectively fixedly connected to the connecting plates I located at both ends of the protective cover. One side of the protective cover has a connecting groove, and the other side is rotatably connected to the support rollers. One side of the air pipe I is fixedly connected to the connecting holes on the protective cover via several connecting ports, and the other side has a connecting pipe fixedly connected to an industrial vacuum cleaner via a connecting hose.

[0010] The grinding mechanism includes an electric pusher cylinder II, a rack, a gear, a connecting plate II, a connecting block, and a grinding stone. The rack is slidably connected to a connecting groove on the protective cover. A protrusion on one side of the rack passes through a through groove on the protective cover and is fixedly connected to the protruding end of the electric pusher cylinder II via a connecting seat. The cylinder body of the electric pusher cylinder II is fixedly connected to the protective cover via the connecting seat. A grinding stone is fixedly connected to the bottom of the connecting plate II, and its top is slidably connected to the connecting groove on the protective cover via a connecting block. The top of the connecting block is provided with several gear teeth. The gear is rotatably connected to the connecting groove on the protective cover, and its top and bottom parts mesh with the gear teeth on the rack and the top of the connecting block, respectively.

[0011] The purging mechanism includes a motor I, an air pipe II, a roller brush, a gear ring, and through grooves. One end of the air pipe II passes through a through hole at one end of the protective cover, and the other end is rotatably connected to the other end of the protective cover. The air pipe II has several air outlets, and the air inlet at one end of the air pipe II is connected to a pipeline fan. The connecting sleeve at one end of the roller brush is rotatably connected between the through hole at one end of the protective cover and the air pipe II, and the other end is rotatably connected to the outside of the air pipe II. The roller brush has several through grooves. The gear ring is located outside the protective cover and is fixedly connected to the connecting sleeve on the roller brush. The motor I is fixedly connected to the protective cover through a connecting seat, and the output end of the motor I meshes with the gear ring through a gear.

[0012] The collection device includes a lead screw, a motor II, a guide shaft I, a scraper, and a filtration mechanism. The scraper is slidably connected to the bottom of the pickling tank, and one end of the scraper is slidably connected to a pair of guide shafts II fixedly connected to one end of the pickling tank via a connecting plate, and the other end is slidably connected to guide shaft I fixedly connected to the other end of the pickling tank via a connecting plate. The lead screw is located above guide shaft I and is threadedly connected to the connecting plate at the other end of the scraper. One end of the lead screw is rotatably connected to the pickling tank, and the other end passes through a through hole on the pickling tank and is fixedly connected to the output end of motor II. Motor II is fixedly connected to the outside of the pickling tank via a connecting seat. The filtration mechanism has two sets, which are respectively located in two sets of filtration tanks.

[0013] The filtration mechanism includes an electric pusher cylinder III, a filter tank, and a one-way air port. Several electric pusher cylinders III are provided, and the cylinder body of the electric pusher cylinder III is fixedly connected to the outer wall of the pickling tank through a connecting seat. The protruding end passes through the through hole on the filter tank and is fixedly connected to the filter tank slidably connected to the bottom of the filter tank. The top of the filter tank is attached to the side wall of the pickling tank and the filter tank, and the bottom is provided with filter holes. Several one-way air ports are provided, respectively located at the through hole at the top of the filter tank.

[0014] The one-way air inlet is provided with a sealing plate, a connecting shell, a spring, and a guide shaft III; one side of the sealing plate is located in a through hole on the filter tank, and one end of several guide shafts III passes through the through hole on the sealing plate and is fixedly connected to the filter tank; the connecting shell is located outside the sealing plate and is fixedly connected to the filter tank, and the other end of the guide shaft III is fixedly connected to the connecting shell; several springs are provided, and the springs are located between the connecting shell and the sealing plate along the guide shaft III.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] 1) Before the titanium alloy plate enters the pickling solution, the oxide scale on its surface is initially removed by the cleaning device, thereby effectively reducing the entry of impurities such as oxide scale into the pickling solution, avoiding the reaction of the pickling solution with excessive impurities and causing a decrease in concentration, thus maintaining the pickling efficiency and extending the service life of the pickling solution.

[0017] 2) The blowing mechanism works in conjunction with the fan and industrial vacuum cleaner to clean the oxide scale and other residues removed by the grinding mechanism in real time through negative pressure adsorption, preventing dust from spreading and causing secondary pollution; at the same time, the fan can cool down the frictional heat generated by grinding by introducing cold air into the protective mechanism through the blowing mechanism, which not only protects the grinding equipment from high temperature damage, but also prevents the titanium alloy plate from secondary oxidation due to local overheating.

[0018] 3) The scraper in the collection device, which is attached to the side wall and bottom of the pickling tank, scrapes the oxide scale residue or oil residue that has settled in the pickling tank into the filtration mechanism. The filtration mechanism separates the oxide scale residue or oil residue from the pickling solution, thereby achieving real-time cleaning of impurities that have fallen into the pickling solution. This effectively blocks the continuous reaction between impurities and pickling solution, stabilizes the chemical activity of the pickling solution, and ensures the consistency of the pickling quality of titanium alloy plates. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the pickling and surface treatment device for β-type titanium alloy hot-rolled plate coils according to this utility model.

[0020] Appendix Figure 2 It is attached Figure 1 Cross-sectional structural diagram of the intermediate pickling tank;

[0021] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the internal structure of the intermediate pickling tank;

[0022] Appendix Figure 4 It is attached Figure 3 A magnified structural diagram of part A in the middle;

[0023] Appendix Figure 5 It is attached Figure 1 Schematic diagram of the cleaning device;

[0024] Appendix Figure 6 It is attached Figure 1 Schematic diagram of the connection structure between the protective mechanism and the grinding mechanism;

[0025] Appendix Figure 7 It is attached Figure 1 Schematic diagram of the central purging mechanism;

[0026] Appendix Figure 8 It is attached Figure 1 A schematic diagram of the cross-sectional structure of the intermediate roller brush;

[0027] Appendix Figure 9 It is attached Figure 1 A schematic diagram of the cross-section of the intermediate roller brush;

[0028] In the diagram: 1. Pickling tank; 101. Upper roller; 102. Lower roller; 103. Filter tank; 1031. Cleaning port; 104. Drainage port; 2. Cleaning device; 201. Support base; 202. Support frame; 203. Connecting rod; 204. Protective mechanism; 2041. Protective cover; 2042. Electric pusher cylinder I; 2043. Connecting hole; 2044. Air pipe I; 2045. Connecting plate I; 2046. Support roller; 205. Grinding mechanism; 2051. Electric pusher cylinder II; 2052. Rack; 2053. Gear; 2054. Connecting plate II; 2055 1. Connecting block; 2056. Polishing stone; 206. Blowing mechanism; 2061. Motor I; 2062. Air pipe II; 2063. Roller brush; 2064. Gear ring; 2065. Through groove; 3. Collection device; 301. Lead screw; 3011. Motor II; 302. Guide shaft I; 303. Guide shaft II; 304. Scraper; 305. Filtering mechanism; 3051. Electric push cylinder III; 3052. Filter tank; 3053. One-way air port; 3054. Sealing plate; 3055. Connecting shell; 3056. Spring; 3057. Guide shaft III; 4. Titanium alloy plate. Detailed Implementation

[0029] To facilitate understanding by those skilled in the art, the following is in conjunction with the appendix. Figure 1-9 The technical solution of this utility model will be further described in detail below.

[0030] A pickling surface treatment device for β-type titanium alloy hot-rolled coils includes a pickling tank 1, a cleaning device 2, and a collecting device 3. The pickling tank 1 is equipped with two sets of upper rollers 101 and two sets of lower rollers 102 inside, a drain outlet 104 at the bottom, and cleaning outlets 1031 at both ends. Two sets of filter tanks 103 with ventilation holes at the top are fixedly connected to both sides of the pickling tank 1. The cleaning device 2 is located at one end of the pickling tank 1. The collecting device 3 is connected to the pickling tank 1 and the filter tanks 103.

[0031] The cleaning device 2 includes a support base 201, a support frame 202, a connecting rod 203, a protective mechanism 204, a grinding mechanism 205, and a blowing mechanism 206. The two ends of the support frame 202 are fixedly connected to the pickling tank 1 through the connecting rod 203, and the bottom is fixedly connected to a pair of support bases 201 located at one end of the pickling tank 1. A pair of protective mechanisms 204 are provided, and the pair of protective mechanisms 204 are symmetrically fixedly connected to the top and bottom of the support frame 202. The grinding mechanism 205 is located on one side of the protective mechanism 204, and the blowing mechanism 206 is located inside the protective mechanism 204.

[0032] The protective mechanism 204 includes a protective cover 2041, an electric pusher cylinder I 2042, a connecting hole 2043, an air pipe I 2044, a connecting plate I 2045, and a support roller 2046. Several electric pusher cylinders I 2042 are provided, and their cylinder bodies are symmetrically fixedly connected to both ends of the support frame 202. Their extended ends are respectively fixedly connected to the connecting plates I 2045 located at both ends of the protective cover 2041. One side of the protective cover 2041 has a connecting groove, and the other side is rotatably connected to the support roller 2046. One side of the air pipe I 2044 is fixedly connected to the connecting hole 2043 on the protective cover 2041 through several connecting ports, and the other side has a connecting pipe fixedly connected to an industrial vacuum cleaner through a connecting hose.

[0033] The grinding mechanism 205 includes an electric push cylinder II 2051, a rack 2052, a gear 2053, a connecting plate II 2054, a connecting block 2055, and a grinding stone 2056. The rack 2052 is slidably connected to the connecting groove on the protective cover 2041. A protrusion on one side of the rack 2052 passes through a through groove on the protective cover 2041 and is fixedly connected to the protruding end of the electric push cylinder II 2051 through a connecting seat. The cylinder body of the electric push cylinder II 2051 is fixedly connected to the protective cover 2041 through the connecting seat. The bottom of the connecting plate II 2054 is fixedly connected to the grinding stone 2056, and the top is slidably connected to the connecting groove on the protective cover 2041 through the connecting block 2055. The top of the connecting block 2055 is provided with several gear teeth. The gear 2053 is rotatably connected to the connecting groove on the protective cover 2041, and the top and bottom of the gear 2053 mesh with the gear teeth on the top of the rack 2052 and the connecting block 2055, respectively.

[0034] The purging mechanism 206 includes a motor I 2061, an air pipe II 2062, a roller brush 2063, a gear ring 2064, and a through groove 2065. One end of the air pipe II 2062 passes through a through hole at one end of the protective cover 2041, and the other end is rotatably connected to the other end of the protective cover 2041. The air pipe II 2062 has several air outlets, and the air inlet at one end of the air pipe II 2062 is connected to a pipe-source fan. The connecting cylinder at one end of the roller brush 2063 is rotatably connected to... The brush 2063 is connected between the through hole at one end of the protective cover 2041 and the air pipe II 2062, and the other end is rotatably connected to the outside of the air pipe II 2062. The brush 2063 is provided with several through grooves 2065. The gear ring 2064 is located outside the protective cover 2041 and is fixedly connected to the connecting cylinder on the brush 2063. The motor I 2061 is fixedly connected to the protective cover 2041 through the connecting seat, and the output end of the motor I 2061 meshes with the gear ring 2064 through a gear.

[0035] The collecting device 3 includes a lead screw 301, a motor II 3011, a guide shaft I 302, a guide shaft II 303, a scraper 304, and a filtering mechanism 305. The scraper 304 is slidably connected to the bottom of the pickling tank 1, and one end of the scraper 304 is slidably connected to a pair of guide shafts II 303 fixedly connected to one end of the pickling tank 1 through a connecting plate, and the other end is slidably connected to the guide shaft I 302 fixedly connected to the other end of the pickling tank 1 through a connecting plate. The lead screw 301 is located above the guide shaft I 302 and is threadedly connected to the connecting plate at the other end of the scraper 304. One end of the lead screw 301 is rotatably connected to the pickling tank 1, and the other end passes through a through hole on the pickling tank 1 and is fixedly connected to the output end of the motor II 3011. The motor II 3011 is fixedly connected to the outside of the pickling tank 1 through a connecting seat. The filtering mechanism 305 is provided in two sets, which are respectively located in two sets of filtering tanks 103.

[0036] The filtration mechanism 305 includes an electric pusher cylinder III 3051, a filter tank 3052, and a one-way air port 3053. Several electric pusher cylinders III 3051 are provided, and the cylinder body of the electric pusher cylinder III 3051 is fixedly connected to the outer wall of the pickling tank 1 through a connecting seat. The extended end passes through the through hole on the filter tank 103 and is fixedly connected to the filter tank 3052 which is slidably connected to the bottom of the filter tank 103. The top of the filter tank 3052 is attached to the side wall of the pickling tank 1 and the filter tank 103, and the bottom is provided with filter holes. Several one-way air ports 3053 are provided, and are respectively located at the through hole at the top of the filter tank 3052.

[0037] The one-way air inlet 3053 is provided with a sealing plate 3054, a connecting shell 3055, a spring 3056, and a guide shaft III 3057. One side of the sealing plate 3054 is located in a through hole on the filter tank 3052, and one end of several guide shafts III 3057 passes through the through hole on the sealing plate 3054 and is fixedly connected to the filter tank 3052. The connecting shell 3055 is located outside the sealing plate 3054 and is fixedly connected to the filter tank 3052, and the other end of the guide shafts III 3057 is fixedly connected to the connecting shell 3055. Several springs 3056 are provided, and the springs 3056 are located between the connecting shell 3055 and the sealing plate 3054 along the guide shafts III 3057.

[0038] A pickling and surface treatment device for β-type titanium alloy hot-rolled coils, the working process of which is as follows:

[0039] The protective mechanism 204 in the cleaning device 2 controls the synchronous operation of the electric pusher cylinder I 2042, causing the protective cover 2041 to rise or fall until the support roller 2046 is in contact with the surface of the steel strip; subsequently, the electric pusher cylinder II 2051 in the grinding mechanism 205 extends and retracts, driving the rack 2052 to slide back and forth in the connecting groove on the protective cover 2041, thereby controlling the gear 2053 to engage with the gear teeth on the connecting block 2055, so that the connecting block 2055 drives the grinding stone 2056 to slide back and forth through the connecting plate II 2054, thus polishing the titanium alloy. The surface of plate 4 is polished and cleaned; at the same time, the motor I 2061 in the blowing mechanism 206 controls the roller brush 2063 to rotate, brushing away the oxide scale and other residues polished off by the polishing mechanism 205; at the same time, the fan inputs cold air into the protective cover 2041 through the air pipe II 2062 to cool down the polishing mechanism 205 and the titanium alloy plate 4, and blows up the oxide scale and other residues brushed off by the roller brush 2063. At this time, the industrial vacuum cleaner is turned on, and the gas carrying the residue is sucked into the industrial vacuum cleaner through the air pipe I 2044.

[0040] After being processed by the cleaning device 2, the titanium alloy plate 4 enters the pickling tank 1 for pickling. During this process, the motor II 3011 in the collecting device 3 is controlled to rotate forward or backward, thereby causing the lead screw 301 to drive the scraper 304 to move back and forth along the guide shaft I 302 and guide shaft II 303 in the pickling tank 1, thereby scraping the oxide scale residue or oil residue settled at the bottom of the pickling tank 1 into the filter tank 3052 in the filtration mechanism 305. After the side wall of the scraper 304 is completely in contact with the through groove on the side of the pickling tank 1, and the filter tank 103 is sealed into an independent space, the electric push cylinder III 3051 operates synchronously to control the filter tank 3052 to rise. At this time, the one-way air port 3053 opens under the action of negative pressure, allowing the air above the filter tank 3052 to enter the inside of the filter tank 3052 through the through hole at the top of the filter tank 3052 until the top of the filter tank 3052 is flush with the filter tank 103. With the top attached, the bottom of filter tank 3052 detaches from the pickling liquid sealed inside filter tank 103 by scraper 304, thereby filtering out oxide scale residue or oil residue from the pickling liquid, and draining out the pickling liquid remaining in the oxide scale residue or oil residue by letting it stand; then, the cleaning port 1031 is opened to clean the oxide scale residue or oil residue in filter tank 3052; after cleaning, the scraper 304 is controlled to detach from the side of pickling tank 1, and at the same time, the electric push cylinder III 3051 operates synchronously to control filter tank 3052 to quickly reset. At this time, the air inside filter tank 3052 enters the pickling liquid in pickling tank 1 along the through groove on the side of pickling tank 1, and rises continuously in the pickling liquid, and finally is discharged from the pickling liquid; at the same time, under negative pressure, the air passes through the vent on filter tank 103 and re-enters the space between the top of filter tank 3052 and the top of filter tank 103.

[0041] In summary, the electronic or electrical components, including but not limited to electric cylinders, motors, etc., are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this utility model.

[0042] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A pickling surface treatment device for hot continuous rolling of a beta titanium alloy sheet coil, comprising a pickling tank, a cleaning device, and a collecting device; the pickling tank is internally provided with two groups of upper supporting rollers and two groups of lower supporting rollers, a bottom is provided with a drain, two ends are provided with a cleaning port, and two groups of filter grooves provided with air holes at the top are fixedly connected to the two sides of the pickling tank; the cleaning device is arranged at one end of the pickling tank; and the collecting device is connected with the pickling tank and the filter grooves; characterized in that the cleaning device comprises a supporting seat, a supporting frame, a connecting rod, a protection mechanism, a polishing mechanism, and a blowing mechanism; the supporting frame is fixedly connected to the pickling tank through the connecting rod at both ends and is fixedly connected to a pair of supporting seats arranged at one end of the pickling tank at the bottom; the protection mechanism is provided in pairs, one pair of the protection mechanism is fixedly connected to the top and the bottom of the supporting frame symmetrically, the polishing mechanism is arranged on one side of the protection mechanism, and the blowing mechanism is arranged in the protection mechanism; the collecting device comprises a lead screw, a motor II, a guide shaft I, a guide shaft II, a scraper, and a filtering mechanism; the scraper is slidingly connected to the bottom of the pickling tank, one end of the scraper is slidingly connected to a pair of guide shaft II fixedly connected to one end of the pickling tank through a connecting plate, and the other end is slidingly connected to the guide shaft I fixedly connected to the other end of the pickling tank through a connecting plate; the lead screw is threadedly connected to the connecting plate at the other end of the scraper above the guide shaft I, one end of the lead screw is rotatably connected to the pickling tank, the other end of the lead screw is fixedly connected to the output end of the motor II through a through hole in the pickling tank, and the motor II is fixedly connected to the outside of the pickling tank through a connecting seat; and the filtering mechanism is provided in two groups and arranged in the two groups of filter grooves.

2. The pickling surface treatment device for a hot continuous rolling coil of a β-type titanium alloy according to claim 1, characterized by the protection mechanism is provided with a protective cover, an electric push cylinder I, a connecting hole, an air pipe I, a connecting plate I, and a supporting roller; the electric push cylinder I is provided in plurality, the cylinder bodies of the plurality of electric push cylinder I are fixedly connected to the two ends of the supporting frame symmetrically, and the extending ends are fixedly connected to the connecting plate I arranged at the two ends of the protective cover, respectively; one side of the protective cover is provided with a connecting groove, and the other side is rotatably connected with the supporting roller; one side of the air pipe I is fixedly connected to the connecting hole on the protective cover through a plurality of connecting openings, and the other side of one connecting pipe is fixedly connected to the industrial dust collector through a connecting hose.

3. The pickling surface treatment device for a hot continuous rolling coil of a β-type titanium alloy according to claim 1, characterized by the polishing mechanism is provided with an electric push cylinder II, a rack, a gear, a connecting plate II, a connecting block, and a polishing stone; the rack is slidingly connected in the connecting groove on the protective cover, the protrusions on one side of the rack pass through the through groove on the protective cover and are fixedly connected to the extending end of the electric push cylinder II through a connecting seat, and the cylinder body of the electric push cylinder II is fixedly connected to the protective cover through a connecting seat; the connecting plate II is fixedly connected with the polishing stone at the bottom, and is slidingly connected with the connecting groove on the protective cover at the top through the connecting block, and the connecting block is provided with a plurality of gear teeth at the top; the gear is rotatably connected in the connecting groove on the protective cover, and the gear is meshed with the rack and the gear teeth on the top of the connecting block above and below, respectively.

4. The pickling surface treatment device for a hot continuous rolling coil of a β-type titanium alloy according to claim 1, characterized by The blowing mechanism is provided with motor I, air pipe II, rolling brush, gear ring, through slot; one end of the air pipe II passes through the through hole of the one end of the protective cover, the other end is rotatably connected with the other end of the protective cover, and a plurality of air outlets are arranged on the air pipe II, and the air inlet of the one end of the air pipe II is connected with the pipeline source fan; one end of the connecting barrel of the rolling brush is rotatably connected between the through hole of the one end of the protective cover and the air pipe II, and the other end is rotatably connected outside the air pipe II, and a plurality of through slots are arranged on the rolling brush; the gear ring is fixedly connected with the connecting barrel on the rolling brush outside the protective cover; the motor I is fixedly connected with the protective cover through the connecting seat, and the output end of the motor I is engaged with the gear ring through the gear.

5. The pickling surface treatment device for a hot continuous rolling coil of a β-type titanium alloy according to claim 1, characterized by The filter mechanism is provided with electric push cylinder III, filter tank and one-way air port; the electric push cylinder III is provided with a plurality of cylinders, and the cylinder body of the electric push cylinder III is fixedly connected with the outer wall of the pickling tank through the connecting seat, the extending end is fixedly connected with the filter tank through the through hole on the filter tank and the sliding connection on the bottom of the filter tank, and the top of the filter tank is combined with the sidewall of the pickling tank and the filter tank, and the bottom is provided with a filter hole; the one-way air port is provided with a plurality of one-way air ports, which are respectively arranged in the through holes on the top of the filter tank.

6. The pickling surface treatment device for a hot continuous rolling coil of a β-type titanium alloy according to claim 5, characterized by The one-way air port is provided with sealing plate, connecting shell, spring and guide shaft III; one side of the sealing plate is arranged in the through hole on the filter tank, and a plurality of guide shafts III pass through the through holes on the sealing plate and are fixedly connected with the filter tank; the connecting shell is fixedly connected with the filter tank outside the sealing plate, and the other end of the guide shaft III is fixedly connected with the connecting shell; the spring is provided with a plurality of springs, and the spring is arranged between the connecting shell and the sealing plate along the guide shaft III.

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