Liquid spray pipe, energy-saving and consumption-reducing cleaning device and strip handling system

Abstract

The present invention relates to a liquid spray pipe, an energy-saving and consumption-reducing cleaning device using the liquid spray pipe, and a strip processing system using the energy-saving and consumption-reducing cleaning device. The liquid spray pipe includes a pipe body, a plurality of nozzles are sequentially arranged on the pipe body along the axial direction of the pipe body, a guide rod is arranged in the pipe body, the guide rod is parallel to the axial direction of the pipe body and at least one block is arranged on the guide rod, each block is matched with a nozzle and the two are located on the same radial section of the pipe body, and the guide rod is connected to a guide rod driving mechanism for driving the guide rod to rotate so that the block blocks or deviates from the corresponding nozzle. The present invention provides a plurality of liquid spray modes by arranging a guide rod in the liquid spray pipe body to drive the block blocks to block or deviate from the nozzle, and the number of nozzles put into use can be selected according to the specific working conditions, effectively saving the cleaning capacity and reducing the dissipation of the cleaning liquid.

Description

Technical Field

[0001] The invention belongs to the technical field of strip surface treatment, and in particular relates to a liquid spray pipe, an energy-saving and consumption-reducing cleaning device using the liquid spray pipe, and a strip processing system using the energy-saving and consumption-reducing cleaning device. Background Art

[0002] In the field of surface treatment, a cleaning tank with a jet pipe is one of the indispensable key devices. The pressurized cleaning liquid passes through the nozzle on the jet pipe to generate a high-speed jet to clean the object to be cleaned, such as a metal plate or strip. The cleaning liquid can be clean water, acid solution of a certain concentration, or a degreasing agent.

[0003] Due to the diversity of products, the width of the object to be cleaned will change, and the object to be cleaned will shift during operation, so the coverage of the cleaning liquid needs to consider the most extreme working conditions. When cleaning strips that are not the widest specifications, there must be a certain number of nozzles at both ends of the spray pipe that are doing useless work, that is, the sprayed cleaning liquid does not clean the strip. At the same time, a considerable part of the liquid mist sprayed by the nozzle at the end of the spray pipe at the bottom of the strip will directly enter the mist outlet because there is no shielding from the strip, resulting in the loss of cleaning liquid and possible damage to the mist exhaust equipment.

[0004] On the metal annealing line, after the strip comes out of the annealing furnace, it is necessary to use water spray to further cool the strip to meet the process requirements. A water spray cooler is such a device, in which a certain number of spray pipes are arranged on the upper and lower surfaces of the strip, and the strip is quickly cooled by spraying water mist. Some strips are prone to wave patterns, and the wave patterns may appear at different positions in the longitudinal direction of the strip. After annealing, the edge waves can be eliminated or reduced by changing the coverage of the water spray on the strip surface. However, to change the spray coverage of the spray pipe on the strip surface, it is necessary to pull out the spray pipe and block or adjust the nozzle, which obviously greatly reduces the operating efficiency and is also inconvenient for operation and maintenance. Summary of the invention

[0005] The embodiments of the present invention relate to a liquid spray pipe, an energy-saving and consumption-reducing cleaning device using the liquid spray pipe, and a strip processing system using the energy-saving and consumption-reducing cleaning device, which can at least solve some of the defects of the prior art.

[0006] An embodiment of the present invention relates to a liquid spray pipe, comprising a pipe body, on which a plurality of nozzles are arranged in sequence along the axial direction of the pipe body, a guide rod is provided in the pipe body, the guide rod is parallel to the axial direction of the pipe body and at least one block is provided on the guide rod, each block is matched with one of the nozzles and the two are located on the same radial section of the pipe body, and the guide rod is connected to a guide rod driving mechanism for driving the guide rod to rotate so that the block blocks or deviates from the corresponding nozzle.

[0007] As one of the embodiments, the guide rod is coaxially arranged with the tube body.

[0008] As one of the embodiments, the axis of the guide rod deviates from the axis of the tube body and is located on a side of the axis of the tube body close to each nozzle.

[0009] As one of the embodiments, the pipe body includes a central normal spraying area and two spray regulating areas arranged on both sides of the central normal spraying area, and each of the blockages is distributed in the two spray regulating areas.

[0010] As one of the embodiments, each of the spray adjustment areas includes a plurality of spray adjustment sections, and each spray adjustment section is provided with at least one nozzle;

[0011] In each spray adjustment section, the number and layout of the blocks matched to each nozzle are the same;

[0012] In two adjacent spray adjustment sections, the number of blockages matched by a single nozzle of one spray adjustment section is different from the number of blockages matched by a single nozzle of the other spray adjustment section.

[0013] As one of the embodiments, when a single nozzle is matched with multiple blockages, the blockages corresponding to the nozzle are evenly spaced along the circumference of the tube body.

[0014] As one of the embodiments, each of the blockages in each spray regulating zone includes at least one axial block row, the number of blockages in the axial block row is the same as the number of nozzles in the spray regulating zone and the arrangement direction of each blockage is parallel to the axis of the pipe body.

[0015] As one of the embodiments, in two spray adjustment zones, there are at least two axial block columns that are collinear.

[0016] As one of the embodiments, in each spray adjustment area, the number of blockages matched by a single nozzle of each spray adjustment section increases successively from the middle normal spray area toward the end of the corresponding side pipe body.

[0017] As one of the embodiments, the two spray adjustment areas are arranged symmetrically relative to the middle normal spray area.

[0018] As one of the embodiments, the blocking surface of the blocking block is an arc-shaped surface with the same curvature as the inner wall of the tube body.

[0019] As one of the embodiments, a groove is provided in the middle of the blocking surface of the blocking block.

[0020] As one of the embodiments, the blocking block is a rubber block.

[0021] As one of the embodiments, the guide rod driving mechanism includes a guide rod driving unit connected to the guide rod, two quick connectors that can be used for male and female assembly, and a positioning pin for locking and assembling the two quick connectors together, one of the quick connectors is fixed on the guide rod, and the other quick connector is fixed to one end of the tube body.

[0022] As one of the embodiments, the guide rod driving unit is a driving handle.

[0023] As one of the embodiments, a screw plug is provided at one end of the tube body, a limiting hole is provided on the screw plug, and the guide rod is inserted into the limiting hole.

[0024] An embodiment of the present invention also relates to an energy-saving and consumption-reducing cleaning device, comprising a cleaning container, wherein a strip running channel is formed in the cleaning container, and at least one cleaning pipe is respectively provided above and below the strip running channel, and at least part of the cleaning pipe adopts the liquid spray pipe as described above.

[0025] An embodiment of the present invention further relates to a strip processing system having a pickling station and a cleaning station, wherein a strip pickling device is arranged at the pickling station, and the energy-saving and consumption-reducing cleaning device as described above is arranged at the cleaning station.

[0026] The embodiments of the present invention have at least the following beneficial effects:

[0027] The present invention provides a guide rod in the body of the liquid spraying pipe to drive the block to block or deviate from the nozzle, so that the liquid spraying pipe has multiple liquid spraying modes, and the number of nozzles to be used can be selected according to specific working conditions, effectively saving cleaning capacity and reducing cleaning liquid dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic plan view of a cleaning device provided in Embodiment 1 of the present invention;

[0030] Figure 2-Figure 4 For different spray widths Figure 1 Cross-sectional view along AA and BB.

[0031] Figure 5 A schematic diagram of the structure of an energy-saving and environment-friendly pickling device provided in Embodiment 4 of the present invention;

[0032] Figure 6This is a plan view of an energy-saving and environment-friendly pickling device provided in Example 4 of the present invention. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1

[0035] like Figure 1 An embodiment of the present invention provides a liquid spray pipe 202, including a tube body 2021, and a plurality of nozzles 2022 are arranged in sequence on the tube body 2021 along the axial direction of the tube body. The arrangement direction of each nozzle 2022 is generally a linear arrangement and parallel to the axial direction of the tube body. The spraying direction of each nozzle 2022 is generally the same, and each nozzle 2022 is preferably evenly spaced.

[0036] like Figure 1 A guide rod 2023 is provided in the tube body 2021, the guide rod 2023 is parallel to the axis of the tube body and at least one block 2024 is provided on the guide rod 2023, each block 2024 is matched with a nozzle 2022 and the two are located on the same radial section of the tube body 2021, and the guide rod 2023 is connected to a guide rod driving mechanism for driving it to rotate so that the block 2024 blocks or deviates from the corresponding nozzle 2022.

[0037] The block 2024 can be mounted on the guide rod 2023 via a block bracket. It can be understood that the block bracket is arranged radially along the tube body 2021. The guide rod driving mechanism drives the guide rod 2023 to rotate around its own axis, which can drive each block 2024 to rotate accordingly, that is, the block 2024 rotates around the guide rod 2023.

[0038] The guide rod 2023 is preferably coaxially arranged 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. In another embodiment, the guide rod 2023 is eccentrically arranged, that is, the axis of the guide rod deviates from the axis of the tube body and is located on the side of the axis of the tube body close to each nozzle 2022, then the distance between the blocking surface of the blocking block 2024 and the axis of the guide rod is equal to the distance between the axis of the guide rod and the inlet of the nozzle 2022, and each blocking block 2024 will contact the inner wall of the tube body 2021 to block the corresponding nozzle 2022 only when it rotates to be opposite to the corresponding nozzle 2022 during the rotation of the guide rod 2023, and the blocking block 2024 does not contact the inner wall of the tube body 2021 at other times, thereby reducing the wear of the blocking block 2024 and preventing the friction force on the blocking block 2024 from being continuously transmitted to the guide rod 2023 to affect the service life of the guide rod 2023.

[0039] The above-mentioned block 2024 is preferably a rubber block; the blocking surface of the block 2024 is preferably an arc-shaped surface with the same curvature as the inner wall of the tube body 2021. In the structure where the guide rod 2023 is eccentrically arranged, the blocking surface of the block 2024 can be set to be an arc-shaped surface suitable for inscribed with the tube wall at the nozzle 2022, so as to ensure the blocking effect on the liquid inlet of the nozzle 2022. Further preferably, as Figure 2-Figure 4 A groove is provided in the middle of the sealing surface of the blocking block 2024, which can reduce the friction between the blocking block 2024 and the pipe wall to a certain extent.

[0040] In the above-mentioned liquid spray pipe 202, some nozzles 2022 may be arranged without the block 2024, that is, the nozzles 2022 may maintain the normal spray / normal open state, and the remaining nozzles 2022 may be blocked or not blocked by the corresponding block 2024 to realize the opening and closing adjustment control, and then a normal spray area and a spray adjustment area are formed on the pipe body 2021 accordingly. It is further preferred that the normal spray area is located in the middle of the pipe body 2021, and there are two spray adjustment areas and they are arranged on the left and right sides of the normal spray area, that is, the pipe body 2021 includes a middle normal spray area and two spray adjustment areas arranged on both sides of the middle normal spray area, and each of the block 2024 is distributed in the two spray adjustment areas. The liquid spray pipe 202 of this structure can be applied to engineering applications such as strip cleaning and cooling, and it is further preferred to arrange the two spray adjustment areas symmetrically relative to the middle normal spray area to ensure the uniformity of strip cleaning / cooling and other treatments.

[0041] It can be understood that when the above-mentioned central normal spraying area includes an even number of nozzles 2022, the even number of nozzles 2022 are symmetrically arranged relative to the center line of the strip processing unit; when the above-mentioned central normal spraying area includes an odd number of nozzles 2022, one of the nozzles 2022 is located on the center line of the strip processing unit, and the remaining nozzles 2022 are symmetrically arranged relative to the center line of the strip processing unit.

[0042] In the spray adjustment area, the number of blocks configured for each nozzle 2022 may be the same or may be configured differently; when the number of blocks configured for the nozzles 2022 is the same, the layout of the blocks 2024 may also be different. For example, two adjacent nozzles 2022 may be configured with the same number of blocks but the blocks 2024 may be staggered, so that the two nozzles 2022 may spray liquid alternately.

[0043] In a preferred embodiment, each of the spray adjustment areas includes a plurality of spray adjustment sections, each of which is provided with at least one nozzle 2022; in each spray adjustment section, the number and layout of the blocks matched by each nozzle 2022 are the same, and in the spray adjustment section, the timing of the liquid spraying of each nozzle 2022 is the same, that is, the liquid is sprayed or blocked at the same time; in two adjacent spray adjustment sections, the number of blocks matched by a single nozzle 2022 of one spray adjustment section is different from the number of blocks matched by a single nozzle 2022 of another spray adjustment section. Based on this structure, segmented liquid spraying control of the liquid spray pipe 202 can be realized, wherein when one spray adjustment section is spraying liquid, the nozzle 2022 of another spray adjustment section can be blocked and stop spraying liquid, thereby making the spray coverage range of the liquid spray pipe 202 adjustable.

[0044] Preferably, when a single nozzle 2022 is matched with a plurality of blocking blocks 2024, the blocking blocks 2024 corresponding to the nozzle 2022 are evenly spaced along the circumference of the tube body 2021 for easy adjustment and control. The blocking blocks 2024 corresponding to the nozzle 2022 may be arranged in a 360° circle relative to the guide rod 2023, or may be arranged in a fan shape relative to the guide rod 2023.

[0045] In a further preferred embodiment, each of the blocks 2024 in each spray regulating zone includes at least one axial block row, the number of blocks in the axial block row is the same as the number of nozzles 2022 in the spray regulating zone, and the arrangement direction of each block 2024 is parallel to the axis of the pipe body. That is, the axial block row includes a plurality of blocks 2024, and the blocks 2024 included therein are configured in a one-to-one correspondence with each nozzle 2022 in the spray regulating zone, and the linear arrangement direction of each block 2024 in the axial block row is parallel to the axis of the pipe body, so that the axial block row can simultaneously block each nozzle 2022 in the spray regulating zone, that is, shut down the spray regulating zone.

[0046] Furthermore, in the two spray adjustment zones, there are at least two axial block columns that are collinear, that is, an axial block column in one spray adjustment zone is collinear with an axial block column in the other spray adjustment zone. Then, when the guide rod 2023 rotates, each nozzle 2022 of the two spray adjustment zones can be blocked at the same time, leaving only the middle normal spray zone to work, thereby obtaining the minimum spray width.

[0047] In a further preferred embodiment, in each spray adjustment zone, the number of blockages matched by a single nozzle 2022 of each spray adjustment section increases in sequence from the middle normal spray zone to the end of the corresponding side tube 2021. For example, from the middle normal spray zone to the end of the corresponding side tube 2021, the spray adjustment zone includes a first spray adjustment section, a second spray adjustment section... an Nth spray adjustment section (N is greater than 2) arranged in sequence, the number of blockages matched by each nozzle 2022 in the first spray adjustment section is 1, the number of blockages matched by each nozzle 2022 in the second spray adjustment section is 2, and so on and so forth, and the number of blockages matched by each nozzle 2022 in the Nth spray adjustment section is N. Based on the above embodiment, from the middle normal spray zone to the end of the corresponding side tube 2021, the probability of closing the nozzle 2022 gradually increases, and the spray coverage of the liquid spray pipe 202 can be gradually reduced.

[0048] Furthermore, in the above embodiment, in each spray adjustment area, there is an axial block row, which is used as the reference row; in each block 2024 matched by each nozzle 2022, the center angle of each adjacent block 2024 relative to the guide rod 2023 is θ, that is, the reference row is used as the starting point and they are arranged in sequence with the same arc length interval. Then, with each nozzle 2022 corresponding to the blockage of the reference row as the initial position, after the guide rod 2023 rotates θ, the first spray adjustment section is put into operation, and after the guide rod 2023 rotates 2θ, the first spray adjustment section and the second spray adjustment section are put into operation. After that, every time the guide rod 2023 rotates θ, one spray adjustment section is put into operation, so as to realize the gradual increase of the spray width of the spray pipe 202, and the reverse operation realizes the gradual reduction of the spray width of the spray pipe 202.

[0049] exist Figure 1 In the illustrated embodiment, the above-mentioned spray adjustment area includes two spray adjustment sections, each spray adjustment section has a nozzle 2022, wherein the nozzle 2022 in the first spray adjustment section is configured with a block 2024, and the nozzle 2022 in the second spray adjustment section is configured with two blockages 2024, and the central angle of the two blockages 2024 relative to the guide rod 2023 is 90°. Figure 2 This corresponds to the situation when the cleaned object is of the widest specification, and each nozzle 2022 is in an open state; Figure 3 Corresponding to the situation when the object to be cleaned is of the second widest specification, the nozzle 2022 in the first spray adjustment section is in the open state and the nozzle 2022 in the second spray adjustment section is in the closed state; Figure 4 Corresponding to the situation when the cleaned object is the narrowest specification, the nozzles 2022 in the first spray adjustment section and the second spray adjustment section are both in a closed state. Obviously, when the number of spray adjustment sections increases accordingly, the width specification of the cleaned object applicable to the liquid spray pipe 202 is correspondingly widened.

[0050] Continuing the structure of the above-mentioned liquid spray pipe 202, as Figure 1 The guide rod driving mechanism includes a guide rod driving unit connected to the guide rod 2023, two quick connectors that can be used for yin and yang assembly, and a positioning pin for locking and assembling the two quick connectors together, wherein one quick connector is fixed to the guide rod 2023, and the other quick connector is fixed to one end of the tube body 2021. The matching structure of yin and yang quick connectors is a prior art and can be purchased from the market, and its specific structure is not described here. Positioning holes are respectively set on the female quick connector and the male quick connector, for example, a plurality of positioning holes are set on the female quick connector, and a locking hole is set on the male quick connector. During the relative rotation of the female quick connector and the male quick connector, the locking hole and the positioning hole on the female quick connector are exchanged relative to each other. After the guide rod 2023 is rotated into place, the guide rod 2023 can be limited by inserting the positioning pin into the locking hole and the corresponding positioning hole, that is, the limiting of each block 2024 is achieved. It can be understood that in the structure where the central angle of each two adjacent blocking blocks 2024 relative to the guide rod 2023 is θ, and the central angle between each two adjacent positioning holes is β, then θ can be equal to β or a multiple of β. The guide rod driving unit can be a driving handle or an automatic rotation driving device, which will not be listed here one by one.

[0051] Of course, the guide rod driving mechanism is not limited to the above structure, and any self-locking rotating driving mechanism is applicable to this embodiment. For example, a motor + reducer combination structure can be directly used for driving.

[0052] Further optimize the above implementation mode, such as Figure 1 , a screw plug 2025 is provided at one end of the tube body 2021, and the screw plug 2025 can be a threaded screw plug 2025 suitable for threaded assembly with the tube body 2021, and is used to block the end of the tube body 2021. In this embodiment, a limiting hole is provided on the screw plug 2025, for example, a hole body directly opened on the screw plug 2025, or a limiting tube installed on the screw plug 2025, and the guide rod 2023 is inserted into the limiting hole. The diameter of the limiting hole is the same or substantially the same as that of the guide rod 2023, and the guide rod 2023 can be limited axially and radially. As the threaded screw plug 2025 is continuously tightened, the pressure applied by the limiting hole to the guide rod 2023 is also increasing, and this pressure is finally transmitted to each block 2024, so that it is closely fitted with the inner wall of the tube body 2021. The above structure can ensure the fastening effect of the guide rod 2023 as much as possible without hindering the rotation of the guide rod 2023, reduce the deformation of the guide rod 2023 during use, and ensure the blocking effect of the block 2024 on the nozzle 2022.

[0053] Embodiment 2

[0054] An embodiment of the present invention provides an energy-saving and consumption-reducing cleaning device 2, comprising a cleaning container 201, wherein a strip running channel is formed in the cleaning container 201, and at least one cleaning pipe is respectively provided above and below the strip running channel, and at least part of the cleaning pipe adopts the liquid spray pipe 202 provided in the above-mentioned embodiment three.

[0055] The cleaning container 201 may be a cleaning tank, a cleaning box, a cooling tank, a cooling box, etc.

[0056] Generally, a plurality of cleaning pipes are provided above and below the strip running channel along the strip running direction, and each cleaning pipe preferably adopts the above-mentioned liquid spraying pipe 202 .

[0057] Embodiment 3

[0058] An embodiment of the present invention provides a strip processing system having a pickling station and a cleaning station. A strip pickling device 1 is arranged at the pickling station, and an energy-saving and consumption-reducing cleaning device 2 provided in the above-mentioned embodiment 2 is arranged at the cleaning station.

[0059] Embodiment 4

[0060] The embodiment of the present invention provides an energy-saving and environment-friendly pickling device, which can be used in the above-mentioned embodiment three as the strip pickling device therein.

[0061] like Figure 5 and Figure 6 The energy-saving and environmentally friendly pickling device includes a pickling tank 102, on which an overflow port 104 is provided. The pickling tank 102 preferably includes a tank body 102 and a tank cover, which is covered on the tank body 102 to enclose a relatively closed cavity for storing acid liquid. In one embodiment, the tank cover includes an outer cover 1101 and an inner cover 1102, and the inner cover 1102 is pressed onto the inner cover support at the top of the tank body 102 to provide good sealing for the acid liquid and acid mist in the cavity. The outer cover 1101 can further improve the sealing performance of the pickling device 1.

[0062] Furthermore, a plurality of side wall protection blocks 111 may be provided on the inner wall of the tank body. For example, each side wall protection block 111 is provided on the inner cover support platform, etc., to prevent the strip from deviating during operation and causing damage to the side wall of the tank body.

[0063] The overflow port 104 is disposed on the tank body 102 , for example, in the middle of the tank body 102 along the length direction of the tank body.

[0064] The structure of the pickling device 1 is further optimized, at least one end of the pickling tank 102 is a liquid isolation end 103, and the liquid isolation 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 tank, and the liquid blocking dam 1032 extends downward from the top of the tank, the supporting dam 1031 and the liquid blocking dam 1032 extend to the vicinity of the strip running channel respectively, and the distance between the two dams can allow the strip to pass; or, the distance between the supporting dam 1031 and the liquid blocking dam 1032 is less than the thickness of the strip, and 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.

[0065] In a preferred embodiment, both ends of the pickling tank 102 are configured as liquid isolation ends 103; obviously, the two ends of the pickling tank 102 corresponding here are the two ends of the pickling tank 102 in the running direction of the strip.

[0066] In a preferred embodiment, the supporting dam 1031 is used to support the strip while serving as a dam to block the acid liquid, 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 the strip; in addition, the supporting dam 1031 also has acid corrosion resistance. At the same time, the supporting dam 1031 is also preferably able to absorb the impact force caused by the vibration of the strip and the poor plate shape to a certain extent, for example, the wear-resistant block is (give an example of the material of the wear-resistant block). In another embodiment, in normal operation, the supporting dam 1031 does not contact the lower surface of the strip, for example, there is a small gap between the top of the supporting dam 1031 and the lower end of the strip running channel.

[0067] In a preferred embodiment, during normal operation, the bottom end of the liquid blocking dam 1032 just contacts the upper surface of the strip or there is a gap between the bottom end and the upper surface of the strip, and the smaller the gap, the better (preferably not more than 1 mm), that is, 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. In this embodiment, the liquid blocking dam 1032 is still preferably an elastic dam. On the one hand, it can better absorb the impact caused by the vibration of the strip and the poor plate shape while blocking the acid liquid from flowing out from the upper part of the strip. On the other hand, it can also adapt to different strip thicknesses. The liquid blocking dam 1032 can be fixed on the inner cover support, and its upper end is in contact with the inner cover 1102; preferably, it can be detachably mounted on the inner cover support, such as by clamping or fixing with screws.

[0068] The elastic dam mentioned above may be a modified rubber block that is wear-resistant and acid-corrosion-resistant. Of course, other elastic materials may also be used, but preferably, the elastic dam has acid-corrosion-resistant properties.

[0069] The energy-saving and environment-friendly pickling device 1 provided in this embodiment forms a relatively closed cavity for storing acid liquid inside the pickling tank 102 by setting a liquid isolation end 103 composed of a supporting dam 1031 and a liquid blocking dam 1032. Since it is no longer necessary to use a high-speed jet to 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 treatment of acid mist. At the same time, since there is no nozzle for liquid sealing, the adaptability of the pickling tank 102 will be greatly enhanced, avoiding the situation where the nozzle is blocked due to the high impurity content in the acid liquid when pickling products such as silicon steel, the acid tank will not be filled with acid liquid and pickling failure will be caused.

[0070] The pickling tank 102 is preferably a turbulent shallow tank, and the relatively closed cavity formed by the enclosure is correspondingly a narrow cavity.

[0071] In the above embodiment, a small amount of acid still overflows from both ends of the pickling tank 102. Figure 5 and Figure 6 The outer side of the liquid isolation end 103 is connected to a transition tank 105 for collecting the acid liquid flowing out from the end, and the transition tank 105 is provided with an acid liquid reflux port 1051 and a strip running channel. The acid liquid collected in the transition tank 105 can flow out through the acid liquid reflux port 1051 for recycling by the pickling device 1. Among them, the bottom of the transition tank 105 is preferably lower than the top of the supporting dam 1031, and it is further preferred that the bottom of the transition tank 105 is lower than the bottom of the pickling tank 102, so as to facilitate the collection and reflux of the acid liquid. Furthermore, an end mist exhaust port is also provided on the transition tank 105 to prevent the acid mist from overflowing from the transition tank 105.

[0072] Generally, squeeze rollers 106 are provided at the strip inlet side and the strip outlet side of the pickling tank 102, respectively. For the structure provided with the transition tank 105, the squeeze roller 106 on the side of the liquid isolation end 103 is arranged in the corresponding transition tank 105 to reduce the occupied space.

[0073] Further optimize the structure of the pickling device 1, such as Figure 5 and Figure 6 The side walls of the pickling tank 102 are provided with a plurality of side nozzles 109 for spraying acid liquid. The side nozzles 109 can not only replenish the acid liquid into the pickling tank 102, but also spray the acid liquid into the tank with a high-speed jet through the side nozzles 109, which can significantly increase the overall turbulence intensity of the acid liquid in the tank and improve the pickling effect. Preferably, a plurality of side nozzles 109 are arranged on both sides of the tank wall of the pickling tank 102; in a further preferred embodiment, as Figure 5 and Figure 6Each of the side nozzles 109 is located in the same horizontal plane as the strip running channel, and the spraying direction of the side nozzles 109 is toward the strip running channel, which has a better effect of improving the overall turbulence intensity of the acid solution in the tank, especially the turbulence intensity of the acid solution near the strip.

[0074] Further optimize the structure of the pickling device 1, such as Figure 5 , a plurality of free rollers 107 for rolling contact with the upper surface of the strip are arranged in sequence in the pickling tank 102 along the running direction of the strip, and the axis of the free roller 107 is perpendicular to the running direction of the strip. It is easy to understand that the arrangement of the free roller 107 should ensure that it can roll in contact with the upper surface of the strip, which is easy for those skilled in the art to arrange according to specific circumstances, for example, its bottom end is flush with the top of the strip running channel. Obviously, the axis of the above-mentioned free roller 107 is generally also parallel to the horizontal direction; the free rollers 107 are arranged in parallel, and it is further preferred that the free rollers 107 are arranged at intervals. In this embodiment, by setting the free roller 107, the free roller 107 rotates around its own axis under the friction of the strip movement, which can continuously tear the acid boundary layer on the upper surface of the strip, strengthen the turbulence of the acid, increase the diffusion rate of hydrogen ions in the boundary layer on the surface of the strip, and effectively improve the pickling effect.

[0075] In an optional embodiment, the free roller 107 includes a roller shaft core fixed on the pickling tank 102 and a rolling ring cylinder rotatably mounted on the roller shaft core. The roller shaft core and the rolling ring cylinder are preferably made of acid corrosion resistant materials with good wear resistance and self-lubricating properties. A further preferred structure is that there is a gap between the rolling ring cylinder and the roller shaft core, that is, the inner diameter of the rolling ring cylinder is larger than the diameter of the roller shaft core (preferably slightly larger), so that the rolling ring cylinder is easier to rotate with the friction of the strip, and at the same time, it can buffer the impact force caused by the shaking of the strip.

[0076] Further optimize the structure of the pickling device 1, such as Figure 5 and Figure 6, a plurality of free rollers 108 for rolling contact with the lower surface of the strip are arranged in sequence in the pickling tank 102 along the running direction of the strip, and the axis of the free roller 108 is perpendicular to the running direction of the strip. It is easy to understand that the arrangement of the free roller 108 should ensure that it can roll contact with the lower surface of the strip, which is easy for those skilled in the art to arrange according to specific circumstances, for example, its top is flush with the bottom end of the strip running channel. Obviously, the axis of the above-mentioned free roller 108 is generally parallel to the horizontal direction; each free roller 108 is arranged in parallel, and it is further preferred that each free roller 108 is arranged at intervals. In this embodiment, by setting the free roller 108, while supporting the strip, the free roller 108 rotates around its own axis under the friction of the strip movement, which can continuously tear the acid boundary layer on the lower surface of the strip, strengthen the turbulence of the acid, increase the diffusion rate of hydrogen ions in the boundary layer on the surface of the strip, 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.

[0077] In an optional embodiment, the free roller 108 includes a roller shaft core fixed to the pickling tank 102 and a rolling sleeve rotatably mounted on the roller shaft core. The roller shaft core and the rolling sleeve are preferably made of acid corrosion resistant materials with good wear resistance and self-lubricating properties.

[0078] Further preferably, there is a gap between the bottom of the free roller 108 and the bottom of the pickling tank 102 (the bottom plate of the pickling tank 102) to ensure the integrity of the bottom plate slope, so that insoluble sediments do not accumulate locally, reducing the difficulty of sedimentation and dredging.

[0079] Among them, in the case where both free pressure rollers 107 and free idlers 108 are provided, the number of free pressure rollers 107 and free idlers 108 can be the same, and they can be provided one by one. In each pair of free pressure rollers 107 and free idlers 108 arranged up and down, the two can be directly opposite each other up and down, or they can be staggered along the running direction of the strip. However, it is preferable to arrange the two adjacent to each other to ensure the smooth running of the strip.

[0080] In addition, a connecting port is provided at the lowest point of the bottom of the pickling tank 102, and a part of the acid solution is continuously discharged at a small flow rate through the connecting port for recycling during production, and some impurities deposited at the bottom of the pickling tank 102 will be discharged together with the acid solution. An emptying port is also provided at the lowest point of the bottom of the pickling tank 102, and when the unit is temporarily stopped or stopped for maintenance, the acid solution in the pickling tank 102 can be quickly emptied through the emptying port. After the unit is stopped, the acid solution is completely drained through the emptying port, and then the outer cover 1101 and the inner cover 1102 are lifted and opened together with the free pressure roller 107 by the cover-lifting machine, and then the tank can be entered for maintenance and cleaning operations. A water seal groove is also provided on the pickling tank 102, and the discontinuous places of the water seal groove are connected through the water seal groove connecting pipe, and the water seal groove can provide better sealing for the acid mist generated by the pickling tank 102.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A strip processing system, comprising a pickling station and a cleaning station, wherein a strip pickling device is arranged at the pickling station, characterized in that: An energy-saving and consumption-reducing cleaning device is arranged at the cleaning station. The energy-saving and consumption-reducing cleaning device comprises a cleaning container, a strip running channel is formed in the cleaning container, at least one cleaning pipe is respectively arranged above and below the strip running channel, at least part of the cleaning pipe is a liquid spray pipe, the liquid spray pipe comprises a pipe body, a plurality of nozzles are sequentially arranged on the pipe body along the axial direction of the pipe body, a guide rod is arranged in the pipe body, the guide rod is parallel to the axial direction of the pipe body and at least one block is arranged on the guide rod, each of the block is matched with one of the nozzles and the two are located on the same radial cross section of the pipe body, and the guide rod is connected to a guide rod driving mechanism for driving the guide rod to rotate so that the block blocks or deviates from the corresponding nozzle; The pickling device comprises a pickling tank, an overflow port is provided on the pickling tank, at least one end of the pickling tank is a liquid isolation end, the liquid isolation end is provided with a supporting dam and a liquid blocking dam, the supporting dam extends upward from the bottom of the tank, the liquid blocking dam extends downward from the top of the tank, the top of the supporting dam extends to be flush with the lower end of the strip running channel, the liquid blocking dam is an elastic dam, the lower end of the liquid blocking dam extends to be flush with the upper end of the strip running channel or there is a gap of no more than 1 mm between the lower end of the liquid blocking dam and the upper end of the strip running channel; or, the distance between the supporting dam and the liquid blocking dam is less than the thickness of the strip, the supporting dam and / or the liquid blocking dam are elastic dams, so that the strip can squeeze the elastic dam and pass between the supporting dam and the liquid blocking dam.

2. The strip processing system according to claim 1, characterized in that: The guide rod is coaxially arranged with the tube body.

3. The strip processing system according to claim 1, characterized in that: The axis of the guide rod deviates from the axis of the tube body and is located on one side of the axis of the tube body close to each nozzle.

4. The strip processing system according to claim 1, characterized in that: The pipe body comprises a central normal spraying area and two spray regulating areas arranged on both sides of the central normal spraying area, and each of the blockages is distributed in the two spray regulating areas.

5. The strip processing system according to claim 4, characterized in that: Each of the spray adjustment areas comprises a plurality of spray adjustment sections, each of which is provided with at least one nozzle; In each spray adjustment section, the number and layout of the blocks matched to each nozzle are the same; In two adjacent spray adjustment sections, the number of blockages matched by a single nozzle of one spray adjustment section is different from the number of blockages matched by a single nozzle of the other spray adjustment section.

6. The strip processing system according to claim 5, characterized in that: When a single nozzle is matched with multiple blocking blocks, the blocking blocks corresponding to the nozzle are evenly spaced along the circumference of the tube body.

7. The strip processing system according to claim 5, characterized in that: Each of the blockages in each spray regulating zone includes at least one axial blockage row, the number of blockages in the axial blockage row is the same as the number of nozzles in the spray regulating zone, and the arrangement direction of each blockage is parallel to the axis of the pipe body.

8. The strip processing system according to claim 7, characterized in that: In two spray adjustment zones, there are at least two axial block columns that are collinear.

9. The strip processing system according to claim 5, characterized in that: In each spray adjustment area, the number of blockages matched by a single nozzle of each spray adjustment section increases successively from the middle normal spray area to the end of the corresponding side pipe body.

10. The strip processing system according to any one of claims 4 to 9, characterized in that: The two spray adjustment areas are arranged symmetrically relative to the middle normal spray area.

11. The strip processing system of claim 1, wherein: The blocking surface of the blocking block is an arc-shaped surface with the same curvature as the inner wall of the tube body.

12. The strip processing system according to claim 11, characterized in that: A groove is provided in the middle of the blocking surface of the blocking block.

13. The strip processing system of claim 1, wherein: The blocking block is a rubber block.

14. The strip processing system of claim 1, wherein: The guide rod driving mechanism includes a guide rod driving unit connected to the guide rod, two quick connectors that can be used for male and female assembly, and a positioning pin for locking and assembling the two quick connectors together, wherein one quick connector is fixed on the guide rod and the other quick connector is fixed to one end of the tube body.

15. The strip processing system of claim 14, wherein: The guide rod driving unit is a driving handle.

16. The strip processing system of claim 1, wherein: A screw plug is provided at one end of the tube body, a limiting hole is provided on the screw plug, and the guide rod is inserted into the limiting hole.

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