WO2021035836A1 - 紊流型酸洗装置及带材处理系统 - Google Patents

紊流型酸洗装置及带材处理系统 Download PDF

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Publication number
WO2021035836A1
WO2021035836A1 PCT/CN2019/106456 CN2019106456W WO2021035836A1 WO 2021035836 A1 WO2021035836 A1 WO 2021035836A1 CN 2019106456 W CN2019106456 W CN 2019106456W WO 2021035836 A1 WO2021035836 A1 WO 2021035836A1
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WIPO (PCT)
Prior art keywords
strip
pickling
free
tank
acid
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PCT/CN2019/106456
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English (en)
French (fr)
Inventor
黎浩
梁芳
况群意
李素珍
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中冶南方工程技术有限公司
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Publication of WO2021035836A1 publication Critical patent/WO2021035836A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying

Definitions

  • the invention belongs to the technical field of strip pickling, and in particular relates to a turbulent flow pickling device and a strip processing system using the turbulent flow pickling device.
  • pickling device 1 is the key process equipment.
  • the strip is immersed in a pickling device 1 filled with acid at a certain temperature, and after passing through the pickling device 1 at a certain speed, the oxide scale on the surface of the strip is removed under the chemical action of the acid.
  • the length of the pickling device 1 is not only directly related to the investment of the plant and the stability of the unit operation, but also affects the energy consumption in the pickling process. If the pickling device 1 is long, the heat energy dissipation and acid mist emission are large. Therefore, it is necessary to improve the pickling efficiency of the pickling device 1 as much as possible and shorten the length of the pickling device 1.
  • the current mainstream pickling device 1 is a turbulent shallow tank, as shown in Figure 1, its feature is that the inner cover is set to fill the relatively closed cavity with a relatively shallow depth, and there are several andesites at the bottom of the cavity. Or wear-resistant plates, so that the strip's running track in the pickling device 1 is almost a straight line; in order to ensure that the cavity is always full of acid, a large nozzle 101 is set at the inlet and outlet of the cavity.
  • the pressurized acid liquid is converted into a high-speed jet through the nozzle in the nozzle 101, and continuously enters the cavity from the inlet and outlet of the cavity, thus realizing the liquid sealing of the acid liquid in the cavity, so that a large amount of acid liquid can only It flows out from the overflow weir in the middle of the cavity.
  • the two ends of the turbulent shallow groove can produce strong turbulence under the high-speed jet of the nozzle 101, but it is mainly concentrated on the upper part of the strip, because the ejected acid is blocked by the strip and cannot enter effectively The lower part of the strip. Due to the strong resistance of the liquid, the flow of the acid in the middle of the turbulent shallow groove is relatively stable, and the turbulence is mainly caused by the movement of the strip itself. If the bottom of the turbulent shallow groove is made of andesite, it is easy to scratch the lower surface of the strip when producing some soft products; if the wear plate is used, the strip will be scraped from the surface of the wear plate. It will contaminate the acid and block the nozzle.
  • the turbulent shallow groove relies on the large nozzle 101 at the inlet and outlet to seal the acid liquid.
  • the nozzle on the nozzle 101 is prone to blockage.
  • the tank body will not be filled with acid liquid in the end, which will cause pickling failure and produce defective products.
  • the high-speed jet continuously ejected from the large nozzle 101 entering and exiting will be damaged during the process of hitting the acid liquid.
  • a large amount of acid mist is generated. Because the area is equipped with a squeezing roller, a mist extraction port must be set. Therefore, as a large amount of acid mist is discharged, not only will the loss of acid liquid be large, but the acid mist will be discharged after it reaches the standard. Increase the operating cost of the unit.
  • the embodiment of the present invention relates to a turbulent flow pickling device and a strip processing system using the turbulent flow pickling device, which can at least solve some of the defects of the prior art.
  • the embodiment of the present invention relates to a turbulent flow pickling device, which includes a pickling tank in which a plurality of free rollers are arranged, and the free rollers are used for rolling contact with the surface of the strip to tear the surface of the strip.
  • the axis of the free roll is perpendicular to the running direction of the strip.
  • each of the free rollers includes a plurality of free pressure rollers, and each of the free pressure rollers is sequentially arranged above the strip running channel along the strip running direction.
  • the free pressing roller includes a pressing roller shaft core fixed on the pickling tank and a rolling ring tube rotatably sleeved on the pressing roller shaft core.
  • the inner diameter of the rolling ring barrel is larger than the diameter of the shaft core of the pressure roller.
  • each of the free rollers includes a plurality of free rollers, and each of the free rollers is sequentially arranged below the strip running channel along the strip running direction.
  • the side wall of the pickling tank is provided with a plurality of side nozzles for spraying acid liquid.
  • each of the side nozzles and the strip running channel are located in the same horizontal plane, and the spray direction of the side nozzles is toward the strip running channel.
  • the embodiment of the present invention also relates to a strip processing system, which has a pickling station and a cleaning station.
  • a strip cleaning device is arranged at the cleaning station, and the pickling station is arranged with the above-mentioned turbulence.
  • Flow-type pickling device is arranged at the cleaning station, and the pickling station is arranged with the above-mentioned turbulence.
  • the turbulent flow pickling device and strip processing system provided by the present invention are provided with a free roller, which is driven by the friction of the movement of the strip, and the free roller rotates around its own axis, which can continuously tear the acid boundary layer on the surface of the strip. Strengthen the turbulence of the acid solution, increase the diffusion rate of hydrogen ions in the boundary layer of the strip surface, and effectively improve the pickling effect.
  • Figure 1 is a schematic diagram of the structure of an existing pickling device provided by the background art
  • Fig. 2 is a schematic structural diagram of a turbulent flow type pickling device provided by Embodiment 1 of the present invention
  • Embodiment 3 is a schematic plan view of a turbulent flow type pickling device provided by Embodiment 1 of the present invention.
  • Embodiment 4 is a schematic plan view of a cleaning device provided by Embodiment 4 of the present invention.
  • Figures 5-7 are cross-sectional views taken along A-A and along B-B in Figure 4 under different spray widths.
  • the embodiment of the present invention provides a turbulent type pickling device 1, including a pickling tank 102, the pickling tank 102 is arranged with a plurality of free rollers, the free rollers are used to interact with the belt
  • the surface of the material is in rolling contact to tear the acid boundary layer on the surface of the strip, and the axis of the free roller is perpendicular to the running direction of the strip.
  • the above-mentioned pickling tank 102 is preferably a turbulent shallow tank conventional in the art.
  • the arrangement of the free roller should ensure that it can be in rolling contact with the upper surface of the strip.
  • This is easily arranged by those skilled in the art according to the specific situation. For example, its bottom end is flush with the top of the strip running channel, or its top end is flush with the top of the strip running channel. The bottom end of the strip running channel is flush.
  • the axes of the aforementioned free rollers are generally parallel to the horizontal direction; the respective rollers are arranged in parallel.
  • the free roller rotates around its own axis driven by the friction of the strip movement, which can continuously tear the acid boundary layer on the surface of the strip, strengthen the turbulence of the acid, and improve the hydrogen ion
  • the diffusion speed in the boundary layer of the strip surface effectively improves the pickling effect.
  • each of the above-mentioned rollers includes a plurality of free pressure rollers 107, each of which is arranged in sequence above the strip running channel along the strip running direction, that is, used to interact with the strip
  • the upper surface is in rolling contact and tears the acid boundary layer on the upper surface of the strip. It is further preferable that each is arranged at intervals by the pressing roller 107.
  • the above-mentioned free pressing roller 107 includes a pressing roller shaft core fixed on the pickling tank 102 and a rolling ring tube rotatably sleeved on the pressing roller shaft core.
  • the rolling ring barrel are preferably made of acid-resistant materials with good wear resistance and self-lubricating properties.
  • a further preferred structure is: there is a gap between the rolling ring barrel and the roller shaft core, that is, the inner diameter of the rolling ring barrel is larger than the diameter of the pressure roller shaft core (preferably slightly larger), so that the rolling ring barrel is easier to rotate with the friction of the strip. At the same time, it can cushion the impact brought by the jitter of the strip.
  • each of the aforementioned rollers includes a plurality of free rollers 108, and each of the free rollers 108 is arranged in sequence below the strip running channel along the strip running direction, namely Used for rolling contact with the lower surface of the strip to tear the acid boundary layer on the lower surface of the strip. It is further preferable that each is arranged at intervals by the supporting rollers 108.
  • the free idler 108 rotates around its own axis under the frictional drive of the movement of the strip, which can continuously tear the acid boundary layer on the lower surface of the strip.
  • Strengthen the turbulence of the acid solution increase the diffusion speed of hydrogen ions in the boundary layer of the strip surface, and effectively improve the pickling effect. Since the use of andesite to support the strip is avoided, the problem of scratches on the lower surface of the strip during operation is solved.
  • the aforementioned free idler 108 includes an idler shaft core fixed on the pickling tank 102 and a rolling sleeve rotatably sleeved on the idler shaft core.
  • the roller shaft core and the rolling sleeve are preferably made of acid and corrosion resistant materials with good wear resistance and self-lubricating properties.
  • the free pressing rollers 107 and the free supporting rollers 108 can be the same in number, and are arranged in one-to-one correspondence.
  • Each pair of the free pressing rollers 107 and free supporting rollers are arranged up and down.
  • the two can face up and down, or they can be arranged staggered along the running direction of the strip, but it is advisable to arrange the two adjacently to ensure the smooth running of the strip.
  • the structure of the turbulent acid pickling device 1 is further optimized, as shown in Figs. 2 and 3.
  • the pickling tank 102 is provided with a plurality of side nozzles 109 for spraying acid liquid.
  • Each side nozzle 109 can not only The acid liquid is added to the pickling tank 102, and the acid liquid is sprayed into the tank with a high-speed jet through the side nozzle 109, which can significantly increase the overall turbulent strength of the acid liquid in the tank and improve the pickling effect.
  • a plurality of side nozzles 109 are arranged on both sides of the pickling tank 102; in a further preferred embodiment, as shown in FIG. 2 and FIG. 3, each of the side nozzles 109 is located in the same strip running channel. In the horizontal plane, the spray direction of the side nozzle 109 faces the strip running channel, which improves the overall turbulence intensity of the acid in the tank, especially the acid turbulence near the strip has a better effect.
  • the pickling tank 102 is provided with an overflow port 104.
  • the pickling tank 102 preferably includes a tank body 102 and a tank cover, and the tank cover is closed on the tank body 102.
  • the tank cover includes an outer cover 1101 and an inner cover 1102.
  • the inner cover 1102 is press-fitted on the inner cover bearing on the top of the tank body 102.
  • the acid liquid and the acid mist in the cavity are well sealed, and the outer cover 1101 can further improve the sealing performance of the turbulent flow pickling device 1.
  • each side wall protection block 111 can be arranged on the inner wall of the tank.
  • each side wall protection block 111 is arranged on the above-mentioned inner cover bearing platform, etc., which can prevent the strip from deviating and opposing the side wall of the tank body during operation. Cause damage.
  • the above-mentioned overflow port 104 is disposed on the tank body 102, for example, it is disposed in the middle of the tank body 102 along the length direction of the tank body.
  • At least one end of the pickling tank 102 is a liquid barrier end 103, and the liquid barrier end 103 is provided with a supporting dam 1031 and a liquid blocking dam 1032.
  • the supporting dam 1031 extends upward from the bottom of the groove
  • the liquid blocking dam 1032 extends downward from the top of the groove
  • the supporting dam 1031 and the liquid blocking dam 1032 respectively extend to the vicinity of the strip running channel
  • the gap between the two dams The distance between the supporting dam 1031 and the liquid blocking dam 1032 is smaller than the thickness of the belt
  • the supporting dam 1031 and/or the liquid blocking dam 1032 are elastic dams, so that The strip can squeeze the elastic dam and pass between the supporting dam 1031 and the liquid blocking dam 1032.
  • both ends of the above-mentioned pickling tank 102 are set as liquid barrier ends 103; obviously, the two ends of the corresponding pickling tank 102 here are the pickling tank 102 in the strip running direction. On the two ends.
  • the above-mentioned supporting dam 1031 serves as a dam to block the acid liquid and at the same time is used to support the strip, that is, the top of the supporting dam 1031 extends to be flush with the lower end of the strip running channel, for example,
  • the supporting dam 1031 is a wear-resistant block suitable for supporting strips; in addition, the supporting dam 1031 also has acid corrosion resistance.
  • the supporting dam 1031 preferably can absorb the vibration and vibration caused by the belt to a certain extent.
  • the impact force caused by poor plate shape, for example, the above-mentioned wear-resistant block is (for example, the material of the wear-resistant block).
  • the aforementioned supporting dam 1031 does not contact the lower surface of the strip. For example, there is a slight gap between the top end of the supporting dam 1031 and the lower end of the strip running channel.
  • the bottom end of the liquid blocking dam 1032 in normal operation, is just in contact with the upper surface of the strip or there is a gap between the upper surface of the strip.
  • the lower end of the liquid blocking dam 1032 extends to be flush with the upper end of the strip running channel, or the lower end of the liquid blocking dam 1032 is located on the strip running channel and close to the strip running channel.
  • the liquid-blocking dam 1032 is still preferably an elastic dam. On the one hand, it can prevent the acid liquid from flowing out of the upper part of the strip, and at the same time, it can better absorb the strip due to the vibration of the strip and the poor shape of the strip.
  • the impact force can also be adapted to different strip thicknesses.
  • the liquid blocking dam 1032 may be fixed on the inner cover bearing platform, and its upper end is in contact with the inner cover 1102; preferably, it can be detachably installed on the inner cover bearing platform, such as being fastened or fixed by screws.
  • the elastic dam can be a modified rubber block that is wear-resistant and acid-corrosive; of course, other elastic materials can also be used, but it preferably has acid-corrosion resistance.
  • the turbulent flow type pickling device 1 provided in this embodiment is provided with a liquid barrier end 103 composed of a supporting dam 1031 and a liquid blocking dam 1032, so that a relatively closed cavity is formed in the pickling tank 102 to facilitate acid storage. Since it is no longer necessary to use high-speed jets to liquid seal the acid liquid at both ends of the pickling tank 102, a large amount of acid mist will not be generated, thereby reducing acid consumption and the cost of subsequent acid mist treatment; at the same time, because it is not used for liquid Sealed nozzles, the adaptability of the pickling tank 102 will be greatly enhanced, to avoid that when pickling products such as silicon steel, the high impurity content in the acid solution will cause the nozzle to block, and the acid tank will not be full of acid solution and cause acid Failure to wash.
  • the outer side of the liquid barrier end 103 is connected with a device for collecting the acid liquid flowing out of the end.
  • the transition tank 105 is provided with an acid return port 1051 and a strip running channel. The acid liquid collected in the transition tank 105 can flow out through the acid liquid return port 1051 for the turbulent flow type pickling device 1 to be recycled.
  • the bottom of the transition tank 105 should be lower than the top of the supporting dam 1031, and it is more preferable that the bottom of the transition tank 105 is lower than the bottom of the pickling tank 102 to facilitate the collection and return of acid.
  • the transition groove 105 is also provided with an end mist discharge port to prevent acid mist from overflowing from the transition groove 105.
  • the strip inlet side and strip outlet side of the pickling tank 102 are respectively provided with squeezing rollers 106.
  • the squeezing roller 106 on the side of the liquid barrier end 103 The roller 106 is arranged in the corresponding transition groove 105 to reduce the occupation of space.
  • the lowest point at the bottom of the pickling tank 102 is provided with a communication port. During production, part of the acid liquid is continuously discharged at a small flow through the communication port for recycling. Part of the impurities deposited on the bottom of the pickling tank 102 will be discharged together with the acid liquid.
  • the lowest point at the bottom of the pickling tank 102 is also provided with an emptying port. When the unit is temporarily shut down or overhauled, the acid liquid in the pickling tank 102 can be quickly emptied through the emptying port.
  • the pickling tank 102 is also provided with a water-sealing tank, and the discontinuous part of the water-sealing tank is connected through the water-sealing tank communication pipe.
  • the water-sealing tank can provide better sealing performance for the acid mist generated by the pickling tank 102.
  • the embodiment of the present invention provides a strip processing system, which has a pickling station and a cleaning station.
  • the strip cleaning device 2 is arranged at the cleaning station, and the above-mentioned embodiment 1 is arranged at the pickling station.
  • the turbulent flow type pickling device 1 is provided, and the specific structure of the turbulent flow type pickling device 1 will not be repeated here.
  • the cleaning station can be located upstream of the pickling station, that is, the strip is processed by the strip cleaning device 2 and then processed by the turbulent type pickling device 1, such as the treatment of stainless steel strip;
  • the station can also be located upstream of the cleaning station, such as the processing of some cold-rolled strips, etc., which will not be described in detail here.
  • an embodiment of the present invention provides a liquid spray pipe 202, which includes a pipe body 2021.
  • a plurality of nozzles 2022 are sequentially arranged on the pipe body 2021 along the axial direction of the pipe body.
  • the arrangement direction of each nozzle 2022 is generally a straight line.
  • the spraying directions of the nozzles 2022 are generally the same, and the nozzles 2022 are preferably arranged at even intervals.
  • the pipe body 2021 is provided with a guide rod 2023, the guide rod 2023 is axially parallel to the pipe body and at least one blocking block 2024 is provided on the guide rod 2023, and each of the blocking blocks 2023 is The block 2024 is matched with a nozzle 2022 and the two are located on the same radial cross section of the tube body 2021.
  • the guide rod 2023 is connected to drive it to rotate so that the blocking block 2024 blocks or deviates from the corresponding nozzle 2022.
  • Guide rod drive mechanism is provided to drive it to rotate so that the blocking block 2024 blocks or deviates from the corresponding nozzle 2022.
  • the above-mentioned blocking block 2024 can be installed on the guide rod 2023 through a blocking block bracket. It is understandable that the blocking block bracket is arranged radially along the tube body 2021.
  • the above-mentioned guide rod driving mechanism drives the guide rod 2023 to rotate around its own axis, which can drive each blocking block 2024 to rotate accordingly, that is, the blocking block 2024 rotates around the guide rod 2023.
  • the above-mentioned guide rod 2023 is preferably arranged coaxially with the tube body 2021, and the blocking block 2024 is always in contact with the tube wall during the rotation of the guide rod 2023.
  • the above-mentioned guide rod 2023 is arranged eccentrically, that is, the guide rod axis is deviated from the tube axis and is located on the side of the tube axis close to each nozzle 2022, then the blocking surface of the blocking block 2024 and the guide rod The distance between the axes is equal to the distance between the guide rod axis and the inlet of the nozzle 2022.
  • each block 2024 When each block 2024 rotates with the guide rod 2023, it will only contact the inner wall of the tube body 2021 when it rotates to face the corresponding nozzle 2022. Therefore, the corresponding nozzle 2022 is blocked. At other times, the blocking block 2024 does not contact the inner wall of the pipe body 2021, thereby reducing the wear of the blocking block 2024 and preventing the frictional force of the blocking block 2024 from being continuously transmitted to the guide rod 2023 and affecting the guide rod 2023. The service life of the rod 2023.
  • the blocking block 2024 is preferably a rubber block; the blocking surface of the blocking block 2024 is preferably an arc-shaped surface with the same curvature as the inner wall of the pipe body 2021. In the structure in which the guide rod 2023 is eccentrically arranged, the blocking block may be provided
  • the plugging surface of 2024 is an arc-shaped surface that is adapted to be inscribed with the pipe wall at the nozzle 2022, which can ensure the plugging effect of the liquid inlet of the nozzle 2022. Further preferably, as shown in FIGS. 5-7, a groove is provided in the middle of the blocking surface of the blocking block 2024, which can reduce the friction between the blocking block 2024 and the pipe wall to a certain extent.
  • the opening and closing adjustment control is realized by blocking, corresponding to the formation of a normal spray area and a spray adjustment area on the pipe body 2021. More preferably, the normal spray area is located in the middle of the pipe body 2021, and there are two spray adjustment areas and are arranged separately.
  • the left and right sides of the normal spray zone, that is, the pipe body 2021 includes a middle normal spray zone and two spray adjustment zones arranged on both sides of the middle normal spray zone.
  • Each block 2024 is distributed in the two sprays. Leaching regulation area.
  • the liquid spray pipe 202 of this structure can be used in engineering applications such as strip cleaning and cooling. It is further preferred that the two spray adjustment zones are arranged symmetrically with respect to the central normal spray zone to ensure strip cleaning/cooling, etc. Uniformity of treatment.
  • the even number of nozzles 2022 are arranged symmetrically with respect to the center line of the strip processing unit, and when the above central constant spray zone includes an odd number of nozzles 2022, one of the nozzles 2022 is located in the belt. On the center line of the steel processing unit, the remaining nozzles 2022 are arranged symmetrically with respect to the center line of the strip processing unit.
  • the number of blocking blocks configured for each nozzle 2022 can be the same or different configurations; when the number of blocking blocks configured for the nozzles 2022 is the same, the layout of the blocking blocks 2024 can also be different, such as two adjacent blocks.
  • the nozzles 2022 are configured with the same number of blocking blocks but the blocking blocks 2024 are arranged in a staggered manner, so that the two nozzles 2022 can spray liquid alternately.
  • each spray adjustment zone includes a plurality of spray adjustment sections, and each spray adjustment section is provided with at least one nozzle 2022; in each spray adjustment section, each nozzle 2022 matches If the number and layout of the blocking blocks are the same, the spray timing of each nozzle 2022 in the spray adjustment section is the same, that is, the nozzles are sprayed at the same time or blocked at the same time; in two adjacent spray adjustment sections, one of them sprays The number of blockages matched by a single nozzle 2022 of the adjustment section is different from the number of blockages matched by a single nozzle 2022 of another spray adjustment section. Based on this structure, the segmented liquid spray control of the liquid spray pipe 202 can be realized. When the spray of one spray regulating section is working, the nozzle 2022 of the other spray regulating section can be blocked to stop spraying, so that the The spray coverage of the spray pipe 202 is adjustable.
  • the blocking blocks 2024 corresponding to the nozzle 2022 are evenly spaced along the circumference of the tube body 2021, which is convenient for adjustment and control.
  • the blocking blocks 2024 corresponding to the nozzle 2022 may be arranged in a 360° circle with respect to the guide rod 2023, or may be arranged in a fan shape with respect to the guide rod 2023.
  • each of the blocking blocks 2024 in each spray adjustment zone includes at least one axial block row, and the number of blocks in the axial block row is equal to the number of the block blocks in the spray adjustment zone.
  • the number of nozzles 2022 is the same, and the arrangement direction of each block 2024 is parallel to the axis of the pipe body. That is, the axial blocking block row includes a plurality of blocking blocks 2024, and the blocking blocks 2024 it includes are arranged in a one-to-one correspondence with the nozzles 2022 of the spray adjustment zone, and the blocking blocks 2024 of the axial blocking block row are arranged in a one-to-one correspondence.
  • the linear arrangement direction is parallel to the axis of the pipe body, so that the axial block row can simultaneously block each nozzle 2022 of the spray adjustment zone, that is, shut down the spray adjustment zone.
  • At least two axial block rows are collinear, that is, one axial block row in one spray adjustment zone and one axial block row in the other spray adjustment zone If the rows are collinear, when the guide rod 2023 rotates, each nozzle 2022 of the two spray adjustment zones can be blocked at the same time, and only the central normal spray zone works to obtain the smallest spray width.
  • the number of blockages matched by a single nozzle 2022 of each spray adjustment section is sequentially Increase.
  • the spray adjustment area includes a first spray adjustment section, a second spray adjustment section...the Nth spray adjustment section ( N is greater than 2), the number of blockages matched by each nozzle 2022 in the first spray adjustment section is 1, and the number of blockages matched by each nozzle 2022 in the second spray adjustment section is 2, and so on.
  • the number of blockages matched by each nozzle 2022 in the Nth spray adjustment section is N. Based on the above implementation, the probability of closing the nozzle 2022 gradually increases from the central normal spray area to the direction corresponding to the end of the side tube 2021, and the spray coverage of the liquid spray tube 202 can be gradually reduced.
  • each nozzle 2022 matches each block 2024 ,
  • the central angle of every two adjacent blocking blocks 2024 with respect to the guide rod 2023 is ⁇ , that is, they are arranged in sequence with the same arc length spacing with the reference column as the starting point.
  • the above-mentioned spray adjustment zone includes two spray adjustment sections, and each spray adjustment section has a nozzle 2022, wherein the nozzle 2022 in the first spray adjustment section is configured with a plug.
  • Block 2024, the nozzle 2022 in the second spray adjustment section is configured with two blocking blocks 2024, the central angle of the two blocking blocks 2024 relative to the guide rod 2023 is 90°.
  • Figure 5 corresponds to the case when the object to be cleaned is the widest specification, and each nozzle 2022 is in the open state
  • Figure 6 corresponds to the case when the object to be cleaned is the second wide specification, and the nozzle 2022 in the first spray adjustment section is open
  • the nozzle 2022 in the second spray adjustment section is in the closed state
  • Figure 7 corresponds to the situation when the object to be cleaned is the narrowest specification, the nozzle 2022 in the first spray adjustment section and the second spray adjustment section are both in the Disabled.
  • the width specification of the object to be cleaned for the liquid spray pipe 202 is correspondingly broadened.
  • the above-mentioned guide rod driving mechanism includes a guide rod driving unit connected with the guide rod 2023, two quick connectors that can be used for male and female assembly, and two quick connectors for locking the two quick connectors.
  • a guide rod driving unit connected with the guide rod 2023
  • two quick connectors that can be used for male and female assembly
  • two quick connectors for locking the two quick connectors.
  • one quick connector is fixed on the guide rod 2023
  • the other quick connector is fixed on one end of the pipe body 2021.
  • the matching structure of the yin-yang quick connector is the prior art and can be purchased in the market, and its specific structure will not be repeated here.
  • Set positioning holes on the female quick connector and the male quick connector for example, set multiple positioning holes on the female quick connector, and set a locking hole on the male quick connector.
  • the locking hole is opposite to the positioning hole on the female quick connector.
  • the guide rod 2023 can be limited by inserting the positioning pin into the locking hole and the corresponding positioning hole.
  • the limit of each blocking block 2024 is changed. Understandably, in the above-mentioned structure where the central angle of every two adjacent blocking blocks 2024 relative to the guide rod 2023 is ⁇ , the corresponding central angle between every two adjacent positioning holes is ⁇ , then ⁇ can be Equal to ⁇ or a multiple of ⁇ .
  • the above-mentioned guide rod driving unit may be a driving handle or an automatic rotary driving device, which will not be listed here.
  • the guide rod drive mechanism is not limited to the above-mentioned structure, and all self-locking rotating drive mechanisms are applicable to this embodiment.
  • a motor + reducer combined structure can be directly used for driving.
  • a plug 2025 is provided at one end of the pipe body 2021.
  • the plug 2025 may be a thread plug 2025 suitable for threaded assembly with the pipe body 2021 to block the end of the pipe body 2021.
  • a limit hole is provided on the plug 2025, such as a hole directly opened on the plug 2025, or a limit tube installed on the plug 2025, and the guide rod 2023 is inserted in In the limit hole, the diameter of the limit hole is the same as or approximately the same as the guide rod 2023.
  • the guide rod 2023 can be axially and radially limited. As the threaded plug 2025 is continuously tightened, the limit hole faces the guide rod.
  • the pressure exerted by 2023 is also increasing, and this pressure is finally transmitted to each blocking block 2024 to make it closely fit with the inner wall of the pipe body 2021.
  • the above structure ensures as far as possible the fastening effect of the guide rod 2023 without hindering the rotation of the guide rod 2023, which can reduce the deformation of the guide rod 2023 during use, and ensure the blocking effect of the blocking block 2024 on the nozzle 2022. .
  • the embodiment of the present invention provides an energy-saving and consumption-reducing cleaning device 2 which can be used in the second embodiment as the strip cleaning device 2 therein.
  • the energy-saving and consumption-reducing cleaning device 2 includes a cleaning container 201 in which a strip running channel is formed, and at least one cleaning pipe is respectively provided above and below the strip running channel, at least part of the cleaning
  • the tube adopts the liquid spray tube 202 provided in the third embodiment above.
  • the cleaning container 201 may be a cleaning tank, a cleaning tank, a cooling tank, a cooling tank, and the like.
  • each of the cleaning pipes preferably adopts the above-mentioned liquid spray pipe 202.

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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Metallurgy (AREA)
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Abstract

一种紊流型酸洗装置(1)，包括酸洗槽(102)，酸洗槽(102)内布置有多个自由辊(107,108)，自由辊(107,108)用于与带材表面滚动接触而撕裂带材表面的酸液边界层，自由辊(107,108)的轴线与带材运行方向垂直。还公开了一种带材处理系统。

Description

紊流型酸洗装置及带材处理系统 技术领域
本发明属于带材酸洗技术领域，具体涉及一种紊流型酸洗装置及采用该紊流型酸洗装置的带材处理系统。
背景技术
在带材酸洗领域，酸洗装置1是关键的工艺设备。带材浸泡在充满一定温度酸液的酸洗装置1内，以一定的速度经过酸洗装置1后，带材表面的氧化皮在酸液的化学作用下得以去除。为保证带材表面的氧化皮在最大工艺速度下能够彻底去除，需要根据所需的酸洗时间设计出合理的酸洗装置1长度。酸洗装置1的长度不仅跟厂房的投资和机组运行的平稳性直接相关，还会影响酸洗过程中的能耗，酸洗装置1长，则热能的耗散和酸雾的排放量大，所以需要尽可能地提高酸洗装置1的酸洗效率，缩短酸洗装置1的长度。
当前主流的酸洗装置1为紊流型浅槽，如图1所示，其特点是通过设置内盖，使酸液充满在相对密闭的深度较浅的腔体内，腔体底部设置有若干安山岩或耐磨板，使得带材在酸洗装置1内的运行轨迹几乎为直线；为保证腔体内始终能充满酸液，在腔体的入口和出口处各设置了一根大喷管101，一定压力的酸液在喷管101内通过喷嘴转化成高速射流，连续不断地从腔体的入口和出口进入腔体内部，从而实现了对腔体内酸液的液封，使大量的酸液只能从腔体中部的溢流堰流出。
紊流型浅槽的两端在喷管101的高速射流下，能产生较强的紊流，但主要集中在带材的上部，因为喷射出来的酸液被带材阻隔了，不能有效地进入带材的下部。由于液体存在十分强大的阻力，酸液在紊流型浅槽中部的流态相对较 为平稳，紊流主要是带材自身运动所带来的。紊流型浅槽底部若采用安山岩，在生产某些质地较软的产品时，容易对带材下表面造成划伤；若采用耐磨板，带材从耐磨板表面刮擦下来的碎屑会污染酸液，堵塞喷嘴。紊流型浅槽依靠入出口的大喷管101对酸液进行液封，而在生产如硅钢等容易对酸液产生杂质的产品时，喷管101上的喷嘴容易发生堵塞，随着喷出的酸液量的减小，最终槽体内将不能充满酸液，从而造成酸洗失败，产生次品；同时入出口的大喷管101连续喷出的高速射流在击打酸液的过程中会产生大量的酸雾，由于该区域设置有挤干辊，必须设置抽雾口，所以随着大量酸雾的外排，不仅造成酸液的损耗大，同时处理酸雾使其达标后排放又会增加机组的运行成本。
发明内容
本发明实施例涉及一种紊流型酸洗装置及采用该紊流型酸洗装置的带材处理系统，至少可解决现有技术的部分缺陷。
本发明实施例涉及一种紊流型酸洗装置，包括酸洗槽，所述酸洗槽内布置有多个自由辊，所述自由辊用于与带材表面滚动接触而撕裂带材表面的酸液边界层，所述自由辊的轴线与带材运行方向垂直。
作为实施例之一，各所述自由辊中，包括多个自由压辊，各所述自由压辊沿带材运行方向依次布置于带钢运行通道上方。
作为实施例之一，所述自由压辊包括固定于所述酸洗槽上的压辊轴芯和可转动套装于所述压辊轴芯上的滚动环筒。
作为实施例之一，所述滚动环筒内径大于所述压辊轴芯的直径。
作为实施例之一，各所述自由辊中，包括多个自由托辊，各所述自由托辊沿带材运行方向依次布置于带钢运行通道下方。
作为实施例之一，所述自由托辊底部与所述酸洗槽的槽底之间具有间距。
作为实施例之一，所述酸洗槽侧壁上设有多个用于喷射酸液的侧喷口。
作为实施例之一，各所述侧喷口与带材运行通道位于同一水平面内，所述侧喷口的喷射方向朝向带材运行通道。
本发明实施例还涉及一种带材处理系统，具有酸洗工位和清洗工位，于所述清洗工位布置有带材清洗装置，于所述酸洗工位布置有如上所述的紊流型酸洗装置。
本发明实施例至少具有如下有益效果：
本发明提供的紊流型酸洗装置及带材处理系统，通过设置自由辊，在带材运动的摩擦带动下，自由辊绕自身轴线旋转，可不断撕裂带材表面的酸液边界层，加强酸液的紊流，提高氢离子在带材表面边界层内的扩散速度，有效地提高酸洗效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为背景技术提供的现有酸洗装置的结构示意图；
图2为本发明实施例一提供的紊流型酸洗装置的结构示意图；
图3为本发明实施例一提供的紊流型酸洗装置的平面示意图；
图4为本发明实施例四提供的清洗装置的平面示意图；
图5-图7为不同喷淋宽度下图4中沿A-A及沿B-B的剖视图。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述 的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
实施例一
如图2和图3，本发明实施例提供一种紊流型酸洗装置1，包括酸洗槽102，所述酸洗槽102内布置有多个自由辊，所述自由辊用于与带材表面滚动接触而撕裂带材表面的酸液边界层，所述自由辊的轴线与带材运行方向垂直。
上述酸洗槽102优选为是本领域常规的紊流型浅槽。
易于理解地，自由辊的布置应保证其能与带材上表面滚动接触，这是本领域技术人员根据具体情况容易布置的，例如其底端与带材运行通道顶端平齐，或者其顶端与带材运行通道底端平齐。显然地，上述自由辊的轴线一般还平行于水平向；各自由辊是平行布置的。
本实施例中，通过设置自由辊，在带材运动的摩擦带动下，自由辊绕自身轴线旋转，可不断撕裂带材表面的酸液边界层，加强酸液的紊流，提高氢离子在带材表面边界层内的扩散速度，有效地提高酸洗效果。
其中，如图2和图3，上述各自由辊中，包括多个自由压辊107，各所述自由压辊107沿带材运行方向依次布置于带钢运行通道上方，即用于与带材上表面滚动接触而撕裂带材上表面的酸液边界层。进一步优选为各自由压辊107间隔布置。
在可选的实施例中，上述自由压辊107包括固定于所述酸洗槽102上的压辊轴芯和可转动套装于所述压辊轴芯上的滚动环筒，该压辊轴芯和滚动环筒均优选采用耐磨和自润滑性能较好的耐酸腐蚀材质。进一步优选地结构是：滚动环筒与压辊轴芯之间具有间隙，即滚动环筒内径大于压辊轴芯的直径(优选是 稍大于)，这样，滚动环筒更易于随带材摩擦而旋转，同时，能缓冲带材抖动带来的冲击力。
在其中一个实施例中，如图2和图3，上述各自由辊中，包括多个自由托辊108，各所述自由托辊108沿带材运行方向依次布置于带钢运行通道下方，即用于与带材下表面滚动接触而撕裂带材下表面的酸液边界层。进一步优选为各自由托辊108间隔布置。
本实施例中，通过设置自由托辊108，在支承带材的同时，在带材运动的摩擦带动下，自由托辊108绕自身轴线旋转，可不断撕裂带材下表面的酸液边界层，加强酸液的紊流，提高氢离子在带材表面边界层内的扩散速度，有效地提高酸洗效果。由于避免了采用安山岩支撑带材，从而解决了运行过程中带材下表面的划伤问题。
在可选的实施例中，上述自由托辊108包括固定于所述酸洗槽102上的托辊轴芯和可转动套装于所述托辊轴芯上的滚动套筒。该托辊轴芯和滚动套筒均优选采用耐磨和自润滑性能较好的耐酸腐蚀材质。
进一步优选地，上述自由托辊108底部与酸洗槽102的槽底(酸洗槽102底板)之间具有间距，保证底板斜面的完整性，使得不溶性沉积物不在局部堆积，减轻了沉积和清淤难度。
其中，对于同时设置有自由压辊107和自由托辊108的情况，自由压辊107与自由托辊108可数量相同，并且一一对应设置，每对上下布置的自由压辊107和自由托辊108中，二者可上下正对，也可沿带材运行方向错位布置，但以二者相邻布置为宜，保证带材运行的平稳性。
进一步优化上述紊流型酸洗装置1的结构，如图2和图3，所述酸洗槽102侧壁上设有多个用于喷射酸液的侧喷口109，通过各侧喷口109不仅可向酸洗槽 102内补充酸液，而且，通过侧喷口109以高速射流向槽内喷射酸液，能显著地提高槽内酸液的整体紊流强度，提高酸洗效果。其中，优选地，在酸洗槽102两侧槽壁均布置多个侧喷口109；在进一步优选的实施例中，如图2和图3，各所述侧喷口109与带材运行通道位于同一水平面内，所述侧喷口109的喷射方向朝向带材运行通道，提高槽内酸液的整体紊流强度尤其是带材附近酸液紊流强度效果较佳。
进一步优化上述紊流型酸洗装置1的结构，上述酸洗槽102上设有溢流口104，该酸洗槽102优选包括槽体102和槽盖，槽盖盖合于该槽体102上，以围合形成便于储存酸液的相对密闭的腔体，在其中一个实施例中，上述槽盖包括外盖1101和内盖1102，该内盖1102压合在槽体102顶部的内盖承台上，对腔体内的酸液和酸雾起到良好的密封性，外盖1101可进一步提高该紊流型酸洗装置1的密封性能。
进一步地，可在槽体内壁设置若干侧壁保护块111，例如，各侧壁保护块111设置于上述内盖承台上等，可以防止带材在运行过程中跑偏而对槽体侧壁造成损伤。
上述溢流口104设置于槽体102上，例如，其沿槽体长度方向设置于槽体102中部。
进一步优化上述紊流型酸洗装置1的结构，所述酸洗槽102的至少其中一端为隔液端103，所述隔液端103设有承托坝1031和阻液坝1032，所述承托坝1031自槽底向上延伸，所述阻液坝1032自槽顶向下延伸，所述承托坝1031与所述阻液坝1032分别延伸至带材运行通道附近，并且两坝之间的间距能容带材通过；或者，所述承托坝1031与所述阻液坝1032之间间距小于带材厚度，所述承托坝1031和/或所述阻液坝1032为弹性坝，从而带材能挤压弹性坝并从所 述承托坝1031与所述阻液坝1032之间通过。
在优选的实施例中，上述酸洗槽102的两端均设置为隔液端103；显然地，此处对应的酸洗槽102的两个端部为该酸洗槽102在带材运行方向上的两个端部。
在优选的实施例中，上述承托坝1031在作为坝体挡住酸液的同时，还用于支承带材，即所述承托坝1031顶端延伸至与带材运行通道下端平齐，例如，该承托坝1031为适于支承带材的耐磨块；另外，该承托坝1031还具有耐酸腐蚀性能，与此同时，该承托坝1031还优选能一定程度地吸收因带材抖动和板型不好等带来的冲击力，例如，上述耐磨块为(举一耐磨块的材质)。在另外的实施例中，正常运行中，上述承托坝1031并不与带材下表面接触，例如，承托坝1031顶端与带材运行通道下端之间具有微小间隙。
在优选的实施例中，正常运行中，上述阻液坝1032底端与带材上表面刚好接触或与带材上表面之间具有间隙，该间隙越小越好(优选不大于1mm)，即所述阻液坝1032下端延伸至与带材运行通道上端平齐，或所述阻液坝1032下端位于带材运行通道上并且靠近带材运行通道。在该实施例中，该阻液坝1032仍优选为是弹性坝，一方面，其在阻隔酸液从带材上部流出的同时，能较好地吸收因带材抖动和板型不好等带来的冲击力，另一方面，还可适应不同的带材厚度。上述阻液坝1032可以是固定在上述内盖承台上，其上端与内盖1102接触；优选是可拆卸安装在内盖承台上，例如卡固或通过螺钉固定等。
对于上述的弹性坝，其可为耐磨耐酸腐蚀的改性橡胶块；当然，也可采用其它的弹性材质，但优选具有耐酸腐蚀性能。
本实施例提供的紊流型酸洗装置1，通过设置由承托坝1031和阻液坝1032构成的隔液端103，使得酸洗槽102内部形成便于储存酸液的相对密闭的腔体， 由于不再需要利用高速射流对酸洗槽102两端的酸液进行液封，也就不会产生大量的酸雾，从而降低了酸耗和后续处理酸雾的成本；同时，由于没有用来液封的喷嘴，酸洗槽102的适应性将大为增强，避免当酸洗如硅钢等品种时，酸液中杂质含量较高而导致喷嘴发生堵塞、酸槽中将不能充满酸液并造成酸洗失败的情况。
在上述实施方式中，仍有少量酸液从酸洗槽102两端溢出，相应地，如图2和图3，所述隔液端103外侧连接有用于收集自该端部流出的酸液的过渡槽105，所述过渡槽105上设有酸液回流口1051及带材运行通道。过渡槽105内收集的酸液可通过该酸液回流口1051流出供紊流型酸洗装置1循环使用。其中，过渡槽105槽底宜低于承托坝1031顶端，进一步优选为过渡槽105槽底低于酸洗槽102槽底，便于酸液的收集与回流。进一步地，在过渡槽105上还设有端部排雾口，防止酸雾从过渡槽105外溢。
一般地，所述酸洗槽102的带材入口侧和带材出口侧分别设有挤干辊106，对于上述设置有过渡槽105的结构，所述隔液端103一侧的所述挤干辊106布置于对应的过渡槽105内，减少占用场地。
另外，酸洗槽102底部的最低点设置有连通口，生产中有一部分酸液通过连通口持续小流量排出供循环利用，沉积在酸洗槽102底部的部分杂质会连同酸液一起被排出。酸洗槽102底部的最低点同时还设置有排空口，当机组临时停车或检修停车时，可通过排空口将酸洗槽102内的酸液快速排空。当机组停车后，通过排空口将酸液完全排尽，再通过揭盖机将外盖1101、内盖1102连同自由压辊107一起抬起并打开后，就可以进入槽内进行维护清理作业。酸洗槽102上还设置有水封槽，水封槽不连续的地方通过水封槽连通管进行连通，水封槽能为酸洗槽102所产生的酸雾提供较好的密封性。
实施例二
本发明实施例提供一种带材处理系统，具有酸洗工位和清洗工位，于所述清洗工位布置有带材清洗装置2，于所述酸洗工位布置有上述实施例一所提供的紊流型酸洗装置1，该紊流型酸洗装置1的具体结构此处不作赘述。
上述清洗工位可位于酸洗工位的上游，即带材先进经上述带材清洗装置2处理后，再经由上述紊流型酸洗装置1处理，例如不锈钢带材的处理；上述酸洗工位也可位于清洗工位的上游，例如一些冷轧带材的处理等，此处不作一一详述。
实施例三
如图4，本发明实施例提供一种喷液管202，包括管体2021，沿管体轴向于所述管体2021上依次布置有多个喷嘴2022，各喷嘴2022的排列方向一般为直线排列且与管体轴向平行，各喷嘴2022的喷射方向一般相同，各喷嘴2022优选为均匀间隔布置。
如图4，所述管体2021内设有导杆2023，所述导杆2023与所述管体轴向平行并且于所述导杆2023上设有至少一个堵块2024，每一所述堵块2024匹配有一所述喷嘴2022并且二者位于所述管体2021的同一径向截面上，所述导杆2023连接有用于驱动其旋转以使所述堵块2024封堵或偏离对应喷嘴2022的导杆驱动机构。
上述堵块2024可通过堵块支架安装在导杆2023上，可以理解地，堵块支架沿管体2021径向设置。上述导杆驱动机构驱动导杆2023绕自身轴线旋转，可带动各堵块2024随之旋转，即堵块2024绕导杆2023旋转。
其中，上述导杆2023优选为与管体2021同轴设置，堵块2024随导杆2023转动过程中，始终与管壁接触。在另外的实施例中，上述导杆2023偏心布置， 即该导杆轴线与管体轴线偏离，并且位于管体轴线的靠近各喷嘴2022的一侧，则堵块2024的封堵面与导杆轴线之间的间距等于导杆轴线与喷嘴2022入口之间的间距，各堵块2024随导杆2023旋转过程中，仅在转动至与对应的喷嘴2022相对时，才会与管体2021内壁接触从而封堵对应的喷嘴2022，其余时刻，堵块2024并不与管体2021内壁接触，从而可以减少堵块2024的磨损，以及避免堵块2024所受摩擦力持续传递给导杆2023而影响导杆2023的使用寿命。
其中，上述堵块2024优选为是橡胶块；堵块2024的封堵面优选为是与管体2021内壁曲率相同的弧形面，在上述导杆2023偏心布置的结构中，则可设置堵块2024的封堵面为适于与喷嘴2022处管壁内切的弧形面，能够保证对喷嘴2022的进液口的封堵效果即可。进一步优选地，如图5-图7，所述堵块2024的封堵面中部设有凹槽，可以一定程度地减小堵块2024与管壁之间的摩擦力。
在上述喷液管202中，可设置部分喷嘴2022不配置堵块2024，即该部分喷嘴2022可保持常喷/常开状态，其余的喷嘴2022则可通过对应的堵块2024封堵或不封堵而实现开闭调节控制，则对应在管体2021上形成常喷区和喷淋调节区，进一步优选地，常喷区位于管体2021中部，喷淋调节区有两个并且分列于该常喷区左右两侧，即所述管体2021包括中部常喷区和分列于所述中部常喷区两侧的两个喷淋调节区，各所述堵块2024分布于两所述喷淋调节区内。该结构的喷液管202可适用于带材的清洗、冷却等工程应用中，进一步优选为设置该两个喷淋调节区相对于该中部常喷区对称布置，保证对带材清洗/冷却等处理的均匀性。
可以理解地，上述中部常喷区包括偶数个喷嘴2022时，该偶数个喷嘴2022相对于带钢处理机组中心线对称布置，上述中部常喷区包括奇数个喷嘴2022时，其中一个喷嘴2022位于带钢处理机组中心线上，其余喷嘴2022相对于带钢处 理机组中心线对称布置。
而在喷淋调节区，每个喷嘴2022所配置的堵块数量可相同，也可差异化配置；喷嘴2022配置的堵块数量相同时，堵块2024的布局也可不同，例如相邻两个喷嘴2022，二者所配置的堵块数量相同但堵块2024错位布置，可使得两个喷嘴2022交替喷液。
在优选的实施方式中，每个所述喷淋调节区包括多个喷淋调节段，每个喷淋调节段设有至少一个喷嘴2022；每一喷淋调节段中，各喷嘴2022所匹配的堵块数量及布局均相同，则该喷淋调节段中，各喷嘴2022的喷液时机是相同的，即同时喷液或同时被封堵；相邻两喷淋调节段中，其中一喷淋调节段的单个喷嘴2022所匹配的堵块数量不同于另一喷淋调节段的单个喷嘴2022所匹配的堵块数量。基于该结构，可以实现对喷液管202的分段喷液控制，其中一喷淋调节段喷液工作时，另一喷淋调节段的喷嘴2022可被封堵而停止喷液，从而使得该喷液管202的喷淋覆盖范围可调。
优选地，单个喷嘴2022匹配有多个堵块2024时，该喷嘴2022所对应的各堵块2024沿管体2021周向均匀间隔布置，便于调节控制。其中，该喷嘴2022所对应的各堵块2024可以是相对于导杆2023呈360°环设，也可以是相对于导杆2023呈扇形布置。
在进一步优选的实施例中，每个喷淋调节区的各所述堵块2024中，包括至少一个轴向堵块列，所述轴向堵块列的堵块数量与该喷淋调节区的喷嘴2022数量相同并且各堵块2024的排列方向与管体轴线平行。即该轴向堵块列包括多个堵块2024，并且其包括的堵块2024与该喷淋调节区的各喷嘴2022一一对应地配置，以及该轴向堵块列的各堵块2024的直线排列方向与管体轴线平行，从而，该轴向堵块列可同时封堵该喷淋调节区的各喷嘴2022，即关停了该喷淋调节区。
进一步地，两个喷淋调节区中，至少有两个轴向堵块列共线，即其中一喷淋调节区的一个轴向堵块列与另一喷淋调节区的一个轴向堵块列共线，则导杆2023转动时，可同时封堵两个喷淋调节区的各喷嘴2022，仅余中部常喷区工作，获得最小的喷淋宽度。
在进一步优选的实施例中，每一喷淋调节区中，自所述中部常喷区向对应侧管体2021端部的方向，各喷淋调节段的单个喷嘴2022所匹配的堵块数量依次增大。例如，自中部常喷区向对应侧管体2021端部的方向，该喷淋调节区包括依次布置的第一喷淋调节段、第二喷淋调节段...第N喷淋调节段(N大于2)，第一喷淋调节段中的各喷嘴2022所匹配的堵块数量为1，第二喷淋调节段中的各喷嘴2022所匹配的堵块数量为2，依次类推而递增，第N喷淋调节段中的各喷嘴2022所匹配的堵块数量为N。基于上述实施方式，自所述中部常喷区向对应侧管体2021端部的方向，关闭喷嘴2022的概率逐渐增大，可以逐步减小该喷液管202的喷淋覆盖范围。
更进一步地，在上述实施方式中，每一喷淋调节区中，有一个上述的轴向堵块列，以该轴向堵块列为基准列；各喷嘴2022所匹配的各堵块2024中，每相邻两个堵块2024相对于导杆2023的圆心角都为θ，即以基准列为起点并以相同的弧长间距依次布置。则，以基准列封堵对应的各喷嘴2022为初始位，导杆2023转动θ后，第一喷淋调节段投入工作，导杆2023转动2θ后，第一喷淋调节段和第二喷淋调节段投入工作，此后导杆2023每转动θ，即有一个喷淋调节段投入工作，实现该喷液管202喷淋宽度的逐步增加，反向操作即实现该喷液管202喷淋宽度的逐步减小。
在图4示出的实施例中，上述喷淋调节区包括两个喷淋调节段，每个喷淋调节段有一个喷嘴2022，其中，第一喷淋调节段中的喷嘴2022配置有一个堵块 2024，第二喷淋调节段中的喷嘴2022配置有两个堵块2024，该两个堵块2024相对于导杆2023的圆心角为90°。图5对应为被清洗对象为最宽规格时的情况，各喷嘴2022均处于开启状态；图6对应为被清洗对象为次宽规格时的情况，第一喷淋调节段中的喷嘴2022处于开启状态而第二喷淋调节段中的喷嘴2022处于关闭状态；图7对应为被清洗对象为最窄规格时的情况，第一喷淋调节段和第二喷淋调节段中的喷嘴2022均处于关闭状态。显然地，当喷淋调节段的数量相应增多时，该喷液管202所适用的被清洗对象的宽度规格相应拓宽。
接续上述喷液管202的结构，如图4，上述导杆驱动机构包括与所述导杆2023连接的导杆驱动单元、能够用于阴阳装配的两个快速接头以及用于将两快速接头锁紧装配在一起的定位销，其中一快速接头固定于所述导杆2023上，另一快速接头固定于所述管体2021的其中一端。阴阳快速接头匹配结构是现有技术，可由市面购得，其具体结构此处不作赘述。在阴快速接头和阳快速接头上分别设置定位孔，例如，在阴快速接头上设置多个定位孔，在阳快速接头上设置一个锁紧孔，在阴快速接头和阳快速接头相对转动过程中，锁紧孔与阴快速接头上的定位孔交换相对，在导杆2023转动到位后，通过定位销插入锁紧孔和对应的定位孔内后即可对导杆2023进行限位，也即实现了对各堵块2024的限位。可以理解地，在上述每相邻两个堵块2024相对于导杆2023的圆心角都为θ的结构中，上述每相邻两个定位孔之间所对应的圆心角为β，则θ可与β相等或为β的倍数。上述导杆驱动单元可为驱动手柄，也可为自动式的转动驱动设备，此处不作一一例举。
当然，导杆驱动机构并不限于上述结构，能自锁的转动驱动机构都适用于本实施例中，例如，可直接采用电机+减速机组合结构驱动等。
进一步优化上述实施方式，如图4，管体2021一端设有丝堵2025，该丝堵 2025可以是适于与管体2021螺纹装配的螺纹丝堵2025，用于封堵该管体2021端部。本实施例中，在该丝堵2025上设有限位孔，例如是直接在丝堵2025上开设的孔体，也可以是在该丝堵2025上安装的限位管，导杆2023插装在该限位孔中，该限位孔直径与导杆2023相同或大致相同，可以对导杆2023进行轴向及径向限位，随着螺纹丝堵2025的不断拧紧，限位孔对导杆2023施加的压力也越来越大，这种压力最终传导给各堵块2024，使其同管体2021的内壁产生紧密贴合。上述结构以在不妨碍导杆2023转动运动的前提下尽量保证对导杆2023的紧固效果，可以减少导杆2023在使用过程中发生变形等情况，保证堵块2024对喷嘴2022的封堵效果。
实施例四
本发明实施例提供一种节能降耗型清洗装置2，可用于上述实施例二中，作为其中的带材清洗装置2。
该节能降耗型清洗装置2包括清洗容器201，所述清洗容器201中形成有带材运行通道，于所述带材运行通道上方和下方分别设有至少一根清洗管，至少部分所述清洗管采用上述实施例三所提供的喷液管202。
上述清洗容器201可以是清洗槽、清洗箱、冷却槽、冷却箱等。
一般地，在带材运行通道上方和下方均沿带材运行方向设有多根清洗管，各清洗管均优选为采用上述喷液管202。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (9)

  1. 一种紊流型酸洗装置，包括酸洗槽，其特征在于：所述酸洗槽内布置有多个自由辊，所述自由辊用于与带材表面滚动接触而撕裂带材表面的酸液边界层，所述自由辊的轴线与带材运行方向垂直。
  2. 如权利要求1所述的紊流型酸洗装置，其特征在于：各所述自由辊中，包括多个自由压辊，各所述自由压辊沿带材运行方向依次布置于带钢运行通道上方。
  3. 如权利要求2所述的紊流型酸洗装置，其特征在于：所述自由压辊包括固定于所述酸洗槽上的压辊轴芯和可转动套装于所述压辊轴芯上的滚动环筒。
  4. 如权利要求3所述的紊流型酸洗装置，其特征在于：所述滚动环筒内径大于所述压辊轴芯的直径。
  5. 如权利要求1所述的紊流型酸洗装置，其特征在于：各所述自由辊中，包括多个自由托辊，各所述自由托辊沿带材运行方向依次布置于带钢运行通道下方。
  6. 如权利要求5所述的紊流型酸洗装置，其特征在于：所述自由托辊底部与所述酸洗槽的槽底之间具有间距。
  7. 如权利要求1至6中任一项所述的紊流型酸洗装置，其特征在于：所述酸洗槽侧壁上设有多个用于喷射酸液的侧喷口。
  8. 如权利要求7所述的紊流型酸洗装置，其特征在于：各所述侧喷口与带材运行通道位于同一水平面内，所述侧喷口的喷射方向朝向带材运行通道。
  9. 一种带材处理系统，具有酸洗工位和清洗工位，于所述清洗工位布置有带材清洗装置，其特征在于：于所述酸洗工位布置有如权利要求1至8中任一项所述的紊流型酸洗装置。
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CN207243973U (zh) * 2017-09-15 2018-04-17 江苏大力神科技股份有限公司 一种镀锌前处理段酸洗装置
CN209210937U (zh) * 2018-11-22 2019-08-06 中冶南方工程技术有限公司 一种新型浅槽紊流酸洗槽
CN110387552A (zh) * 2019-08-27 2019-10-29 中冶南方工程技术有限公司 节能环保型酸洗装置及带材处理系统

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