WO2021035838A1

WO2021035838A1 - Liquid spraying tube, energy-saving and consumption-reducing cleaning device, and strip processing system

Info

Publication number: WO2021035838A1
Application number: PCT/CN2019/106459
Authority: WO
Inventors: 黎浩; 廖砚林; 梁芳; 况群意; 李素珍
Original assignee: 中冶南方工程技术有限公司
Priority date: 2019-08-27
Filing date: 2019-09-18
Publication date: 2021-03-04
Also published as: CN110420922A

Abstract

Disclosed are a liquid spraying tube (202), an energy-saving and consumption-reducing cleaning device (2) employing the liquid spraying tube (202), and a strip processing system employing the energy-saving and consumption-reducing cleaning device (2). The liquid spraying tube (202) comprises a tube body (2021) and a plurality of nozzles (2022) sequentially disposed on the tube body (2021) along an axial direction of the tube body (2021). A guide rod (2023) is disposed inside the tube body (2021) and is axially parallel to the tube body (2021). At least one stopper block (2024) is provided on the guide rod (2023) and each stopper block (2024) matches a nozzle (2022), with both being on a radial cross section of the tube body (2021). The guide rod (2023) is connected with a guide rod drive mechanism for driving the rotation of the guide rod (2023) so as to cause the stopper block (2024) to block or deviate from a corresponding nozzle (2022). The guide rod (2023) is disposed inside the tube body (2021) of the liquid spraying tube (202) so as to drive the stopper block (2024) to block or deviate from the nozzle (2022). The liquid spraying tube (202) is provided with a plurality of liquid spraying modes, such that the number of the nozzles (2022) put into use can be selected according to a particular working condition and cleaning capability is effectively economical, while reducing the consumption of a cleaning solution.

Description

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

Technical field

The invention belongs to the technical field of strip surface treatment, and specifically relates to a liquid spray pipe, an energy-saving and consumption-reducing cleaning device using the liquid spraying pipe, and a strip processing system using the energy-saving and consumption-reducing cleaning device.

Background technique

In the field of surface treatment, a cleaning tank with a spray tube is one of the indispensable key devices. The pressurized cleaning fluid passes through the nozzle on the nozzle to generate a high-speed jet to clean the object to be cleaned, such as metal strips. The cleaning fluid can be clean water, a certain concentration of acid or degreasing agent.

Due to the diversity of products, the width of the cleaned object will change, and the cleaned object will have a certain offset during operation, so the coverage of the cleaning fluid needs to consider the most extreme working conditions, so when the cleaning is not the widest specification In the case of strips, there must be a certain number of nozzles at both ends of the jet pipe doing useless work, that is, the sprayed cleaning fluid does not clean the strip. At the same time, a considerable part of the liquid mist sprayed from the nozzle at the end of the spray tube at the lower part of the strip will directly enter the mist discharge port because there is no shielding by the strip, which will cause the loss of cleaning fluid and may lead to the failure of the mist discharge equipment. damage.

On the metal annealing treatment 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. Water spray cooler is such a device. A certain number of spray pipes are arranged on the upper and lower surfaces of the strip, and the sprayed water mist is used to quickly cool the strip. Some strips are prone to wave shape, and the wave shape may appear at different positions in the longitudinal direction of the strip. After annealing, the coverage of the water spray on the strip surface can be changed to eliminate or reduce the edge waves. However, to change the spray coverage of the spray tube on the surface of the strip, it is necessary to plug or adjust the nozzle after the spray tube is drawn out. This obviously greatly reduces the work efficiency and the operation and maintenance are also very inconvenient.

Summary of the invention

The embodiment of the present invention relates to a liquid spray pipe, an energy-saving and consumption-reducing cleaning device using the liquid spraying 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.

The embodiment of the present invention relates to a liquid spray pipe, including 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, and the guide rod is connected to the pipe body. The body axis is parallel to the guide rod and at least one blocking block is provided on the guide rod. Each of the blocking blocks is matched with a nozzle and the two are located on the same radial cross section of the pipe body. The guide rod is connected with It is driven to rotate to make the blocking block block or deviate from the guide rod driving mechanism of the corresponding nozzle.

As one of the embodiments, the guide rod is arranged coaxially with the pipe body.

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

As one of the embodiments, the pipe body includes a middle constant spray area and two spray adjustment areas arranged on both sides of the middle constant spray area, and each block is distributed in the two spray adjustment areas .

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

In each spray adjustment section, the number and layout of blockages matched by each nozzle are the same;

In the 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.

As one of the embodiments, 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 pipe body.

As one of the embodiments, each of the blocking blocks in each spray adjustment zone includes at least one axial block row, and the number of blocks in the axial block row is the same as the number of nozzles in the spray adjustment zone And the arrangement direction of each blocking block is parallel to the axis of the pipe body.

As one of the embodiments, in the two spray adjustment zones, at least two axial block rows are collinear.

As one of the embodiments, in each spray adjustment zone, the number of blockages matched by a single nozzle of each spray adjustment section increases sequentially from the middle constant spray zone to the direction of the corresponding side pipe end.

As one of the embodiments, the two spray adjustment zones are arranged symmetrically with respect to the central normal spray zone.

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.

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

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

As one of the embodiments, the guide rod driving mechanism includes a guide rod driving unit connected with the guide rod, two quick connectors that can be used for female and male assembly, and a positioning pin used to lock and assemble the two quick connectors together , One of the quick connectors is fixed on the guide rod, and the other quick connector is fixed on one end of the pipe body.

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

As one of the embodiments, one end of the tube body is provided with a plug, and the plug is provided with a limiting hole, and the guide rod is inserted into the limiting hole.

The embodiment of the present invention also relates to an energy-saving and consumption-reducing cleaning device, including a cleaning container 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 pipe adopts the liquid spray pipe as described above.

The embodiment of the present invention also relates to a strip processing system, which has a pickling station and a cleaning station. A strip pickling device is arranged on the pickling station, and the cleaning station is arranged as described above. The energy-saving and consumption-reducing cleaning device described.

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

In the present invention, a guide rod is arranged in the body of the liquid spray pipe to drive the block to block or deviate from the nozzle, so that the liquid spray pipe has a variety of spray modes, and the number of nozzles to be put into use can be selected according to specific working conditions, effectively saving cleaning Ability to reduce the consumption of cleaning fluid.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic plan view of a cleaning device provided by Embodiment 1 of the present invention;

Figures 2 to 4 are cross-sectional views along A-A and B-B in Figure 1 with different spray widths.

Figure 5 is a schematic structural diagram of an energy-saving and environmentally-friendly pickling device provided by Embodiment 4 of the present invention;

Fig. 6 is a schematic plan view of an energy-saving and environmentally-friendly pickling device provided by the fourth embodiment of the present invention.

detailed description

The following describes the technical solutions in the embodiments of the present invention clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Example one

As shown in Fig. 1, 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. Arranged and parallel to the axial direction of the tube body, the spraying directions of the nozzles 2022 are generally the same, and the nozzles 2022 are preferably arranged at even intervals.

As shown in Figure 1, the tube body 2021 is provided with a guide rod 2023, the guide rod 2023 is axially parallel to the tube body and at least one block 2024 is provided on the guide rod 2023, and each of the block 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.

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.

Wherein, 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. In another embodiment, the guide rod 2023 is eccentrically arranged, that is, the guide rod axis is deviated from the pipe body axis and is located on the side of the pipe body 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. 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. 2 to 4, 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.

In the above-mentioned spray pipe 202, it is possible to set some nozzles 2022 without blocking block 2024, that is, this part of the nozzles 2022 can maintain the normal spray/normally open state, and the remaining nozzles 2022 can be blocked or unblocked by the corresponding blocking blocks 2024. 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.

Understandably, when the above-mentioned central constant spray zone includes an even number of nozzles 2022, 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.

In the spray adjustment zone, 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.

In a preferred embodiment, 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.

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, which is convenient for adjustment and control. Wherein, 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.

In a further preferred embodiment, 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.

Further, in the two spray adjustment zones, 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.

In a further preferred embodiment, in each spray adjustment zone, from the central constant spray zone to the direction of the end of the corresponding side tube 2021, the number of blockages matched by a single nozzle 2022 of each spray adjustment section is sequentially Increase. For example, from the central normal spray area to the direction corresponding to the end of the side tube 2021, 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.

Furthermore, in the above embodiment, in each spray adjustment zone, there is one axial block row described above, and the axial block row is used as the reference row; 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 θ, that is, they are arranged in sequence with the same arc length spacing with the reference column as the starting point. Then, taking 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 The adjustment section is put into operation. After that, every time the guide rod 2023 rotates θ, a spray adjustment section is put into operation to realize the gradual increase of the spray width of the spray pipe 202. The reverse operation realizes the spray width of the spray pipe 202. Decrease gradually.

In the embodiment shown in FIG. 1, 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 2 corresponds to the situation when the object to be cleaned is the widest specification, and each nozzle 2022 is in the open state; Figure 3 corresponds to the situation 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 4 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 at Disabled. Obviously, when the number of spray adjustment sections increases correspondingly, the width specification of the object to be cleaned for the liquid spray pipe 202 is correspondingly broadened.

Continuing the structure of the above-mentioned liquid spray pipe 202, as shown in FIG. 1, 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. For the positioning pins that are tightly assembled, one quick connector is fixed on the guide rod 2023, and 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. During the relative rotation of the female quick connector and the male quick connector , The locking hole is opposite to the positioning hole on the female quick connector. After the guide rod 2023 is rotated in place, 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 with respect to the guide rod 2023 is θ, the corresponding central angle between every two adjacent positioning holes is β, then θ can be Equal to β or a multiple of β. The above-mentioned guide rod driving unit may be a driving handle or an automatic rotary driving device, which will not be listed here.

Of course, 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. For example, a motor + reducer combined structure can be directly used for driving.

To further optimize the above-mentioned embodiment, as shown in Fig. 1, one end of the pipe body 2021 is provided with a plug 2025. The plug 2025 may be a thread plug 2025 suitable for threaded assembly with the pipe body 2021 for sealing the end of the pipe body 2021. . In this embodiment, 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. .

Example two

The embodiment of the present invention provides an energy-saving and consumption-reducing cleaning device 2 including a cleaning container 201 in which a strip running channel is formed, and at least one cleaning device is provided above and below the strip running channel. The pipe, at least part of the cleaning pipe adopts the liquid spray pipe 202 provided in the third embodiment.

The cleaning container 201 may be a cleaning tank, a cleaning tank, a cooling tank, a cooling tank, and the like.

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

Example three

The embodiment of the present invention provides a strip processing system, which has a pickling station and a cleaning station. A strip pickling device 1 is arranged on the pickling station, and the above-mentioned implementation is arranged on the cleaning station. The energy-saving and consumption-reducing cleaning device 2 provided in Example 2.

Example four

The embodiment of the present invention provides an energy-saving and environment-friendly pickling device, which can be used in the third embodiment as the strip pickling device.

As shown in Figures 5 and 6, the energy-saving and environmentally friendly pickling device includes a pickling tank 102, the pickling tank 102 is provided with an overflow 104, and the pickling tank 102 preferably includes a tank body 102 and a tank cover. Cover the tank body 102 to enclose and form a relatively closed cavity for storing acid liquid. In one of the embodiments, the tank cover includes an outer cover 1101 and an inner cover 1102, and the inner cover 1102 is press-fitted on The inner cover bearing platform at the top of the tank body 102 has a good sealing performance for the acid liquid and acid mist in the cavity, and the outer cover 1101 can further improve the sealing performance of the pickling device 1.

Further, a number of side wall protection blocks 111 can be arranged on the inner wall of the tank. For example, 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.

To further optimize the structure of the above-mentioned pickling device 1, 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, and the supporting dam 1031 Extending 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, and the distance between the two dams can accommodate The strip passes; or, the distance between the supporting dam 1031 and the liquid blocking dam 1032 is less than the thickness of the strip, the supporting dam 1031 and/or the liquid blocking dam 1032 are elastic dams, so that the strip can The elastic dam is squeezed and passes between the supporting dam 1031 and the liquid blocking dam 1032.

In a preferred embodiment, 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.

In a preferred embodiment, 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. At the same time, 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). In another embodiment, during normal operation, 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.

In a preferred embodiment, in normal operation, the bottom end of the liquid blocking dam 1032 is just in contact with the upper surface of the strip or there is a gap between the upper surface of the strip. The smaller the gap, the better (preferably not greater 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 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, on the other hand, 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.

For the above-mentioned elastic dam, it 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 energy-saving and environmentally friendly 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 pickling tank 102 is preferably a turbulent shallow tank, and the relatively closed cavity formed by the enclosure corresponds to a narrow cavity.

In the above embodiment, there is still a small amount of acid liquid overflowing from both ends of the pickling tank 102. Correspondingly, as shown in FIG. 5 and FIG. 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 recycling use of the pickling device 1. Among them, 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. Furthermore, the transition groove 105 is also provided with an end mist discharge port to prevent acid mist from overflowing from the transition groove 105.

Generally, the strip inlet side and strip outlet side of the pickling tank 102 are respectively provided with squeezing rollers 106. For the above-mentioned structure provided with the transition groove 105, 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 structure of the above-mentioned pickling device 1 is further optimized, as shown in Figs. 5 and 6, the side wall of the pickling tank 102 is provided with a plurality of side nozzles 109 for spraying acid liquid. The tank 102 is filled with acid liquid, 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 turbulence intensity of the acid liquid in the tank and improve the pickling effect. Among them, preferably, multiple side nozzles 109 are arranged on both sides of the pickling tank 102; in a further preferred embodiment, as shown in Figures 5 and 6, each of the side nozzles 109 and the strip running channel are located at the same 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.

Further optimize the structure of the above-mentioned pickling device 1, as shown in FIG. 5, a plurality of free pressing rollers 107 for rolling contact with the upper surface of the strip are sequentially arranged in the pickling tank 102 along the running direction of the strip. The axis of the roller 107 is perpendicular to the running direction of the strip. It is easy to understand that the arrangement of the free pressing roller 107 should ensure that it can roll in contact with the upper surface of the strip, which 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. Obviously, the axis of the above-mentioned free pressing roller 107 is generally parallel to the horizontal direction; each of the pressing rollers 107 is arranged in parallel, and it is further preferred that each of the pressing rollers 107 are arranged at intervals. In this embodiment, by setting the free press roller 107, the free press roller 107 rotates around its own axis under the frictional movement of the strip, which can continuously tear the acid boundary layer on the upper surface of the strip and strengthen the turbulence of the acid. , Improve the diffusion rate of hydrogen ions in the boundary layer of the strip surface, effectively improve the pickling effect.

In an optional embodiment, 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. And 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.

Further optimize the structure of the above-mentioned pickling device 1, as shown in Figures 5 and 6, a plurality of free rollers 108 for rolling contact with the lower surface of the strip are sequentially arranged in the pickling tank 102 along the strip running direction, so 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 idler 108 should ensure that it can roll in contact with the lower surface of the strip, which can be easily arranged by those skilled in the art according to specific conditions, for example, its top end 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 of the support rollers 108 is arranged in parallel, and it is further preferred that each of the support rollers 108 is spaced apart. In this embodiment, by setting the free idler 108, while supporting the strip, 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.

In an optional embodiment, 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.

Further preferably, there is a distance between the bottom of the free roller 108 and the bottom of the pickling tank 102 (the bottom of the pickling tank 102) to ensure the integrity of the slope of the bottom plate, so that insoluble deposits do not accumulate locally, which reduces deposition and cleaning. Difficulty.

Among them, for the case where the free pressing roller 107 and the free supporting roller 108 are provided at the same time, 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. In 108, 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.

In addition, 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. When the unit is stopped, the acid is completely drained through the emptying port, and then the outer cover 1101, the inner cover 1102 and the free pressure roller 107 are lifted and opened by the uncovering machine, and then the tank can be entered for maintenance and cleaning operations. . 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 above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the present invention. Within the scope of protection.

Claims

A liquid spray pipe includes a pipe body, and a plurality of nozzles are sequentially arranged on the pipe body along the axial direction of the pipe body. The nozzle is characterized in that: the pipe body is provided with a guide rod, and the guide rod is connected to the pipe body. Axial parallel and at least one blocking block is provided on the guide rod, each blocking block is matched with the nozzle and the two are located on the same radial section of the pipe body, and the guide rod is connected with Drive it to rotate so that the blocking block blocks or deviates from the guide rod driving mechanism of the corresponding nozzle.
The liquid spray tube according to claim 1, wherein the guide rod is arranged coaxially with the tube body.
The liquid spray tube according to claim 1, wherein the axis of the guide rod deviates from the axis of the tube body, and is located on the side of the tube body axis close to the nozzles.
The liquid spray pipe according to claim 1, wherein the pipe body includes a middle constant spray area and two spray adjustment areas arranged on both sides of the middle constant spray area, and each block is distributed In the two spray adjustment zones.
5. The spray pipe of claim 4, wherein each spray adjustment zone comprises a plurality of spray adjustment sections, and each spray adjustment section is provided with at least one nozzle;

In each spray adjustment section, the number and layout of blockages matched by each nozzle are the same;

In the 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.
The liquid spray pipe according to claim 5, wherein when a single nozzle is matched with a plurality of blocking blocks, the blocking blocks corresponding to the nozzle are evenly spaced along the circumference of the pipe body.
The liquid spray pipe according to claim 5, wherein each of the blocking blocks in each spray adjustment zone includes at least one axial blocking block row, and the number of the axial blocking blocks in the axial blocking block row is equal to The number of nozzles in the spray adjustment zone is the same and the arrangement direction of each block is parallel to the axis of the pipe body.
7. The liquid spray pipe according to claim 7, wherein at least two axial block rows are collinear in the two spray adjustment zones.
The spray pipe according to claim 5, characterized in that: in each spray adjustment zone, from the middle constant spray area to the direction of the corresponding side pipe end, the individual nozzles of each spray adjustment section match The number of blocking blocks increases successively.
9. The liquid spray pipe according to any one of claims 4 to 9, wherein the two spray adjustment zones are arranged symmetrically with respect to the central normal spray zone.
The liquid spray pipe according to claim 1, wherein the blocking surface of the blocking block is an arc surface with the same curvature as the inner wall of the pipe.
The liquid spray pipe according to claim 11, wherein a groove is provided in the middle of the blocking surface of the blocking block.
The liquid spray pipe according to claim 1, wherein the blocking block is a rubber block.
The liquid ejection tube according to claim 1, wherein the guide rod driving mechanism includes a guide rod driving unit connected with the guide rod, two quick connectors that can be used for male and female assembly, and two quick connectors The joints are locked and assembled together with the positioning pins, one of the quick joints is fixed on the guide rod, and the other quick joint is fixed on one end of the pipe body.
The liquid spray tube according to claim 14, wherein the guide rod driving unit is a driving handle.
The liquid spray pipe according to claim 1, characterized in that: one end of the pipe body is provided with a plug, and the plug is provided with a limiting hole, and the guide rod is inserted into the limiting hole.
An energy-saving and consumption-reducing cleaning device includes a cleaning container, 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 is characterized in that: at least part of the cleaning tube The cleaning pipe adopts the liquid spray pipe according to any one of claims 1 to 16.
A strip processing system has a pickling station and a cleaning station. A strip pickling device is arranged on the pickling station, and is characterized in that: the cleaning station is arranged on the cleaning station as claimed in claim 17 The energy-saving and consumption-reducing cleaning device described.