CN210788356U - Spray pipe, energy-saving and consumption-reducing type cleaning device and strip processing system - Google Patents

Abstract

The utility model relates to a spray pipe, adopt this spray pipe's energy saving and consumption reduction type belt cleaning device and adopt this energy saving and consumption reduction type belt cleaning device's strip processing system, this spray pipe includes the body, a plurality of nozzles have been arranged in proper order on the body along the body axial, be equipped with the guide arm in the body, the guide arm is parallel with the body axial and be equipped with at least one sprue on the guide arm, each sprue is matched with a nozzle and the two is located the same radial cross section of body, the guide arm is connected with and is used for driving its rotatory so that sprue shutoff or skew guide arm actuating mechanism who corresponds the nozzle. The utility model discloses a set up the guide arm in order to drive sprue shutoff or skew nozzle in the spray tube body for the spray tube has multiple hydrojet mode, can select the quantity of the nozzle that drops into use according to concrete operating mode, practices thrift the cleaning performance effectively, reduces the washing liquid dissipation.

Description

Spray pipe, energy-saving and consumption-reducing type cleaning device and strip processing system

Technical Field

The utility model belongs to the technical field of the strip surface treatment, concretely relates to spray tube, adopt this spray tube's energy saving and consumption reduction type belt cleaning device and adopt this energy saving and consumption reduction type belt cleaning device's strip processing system.

Background

In the field of surface treatment, a cleaning tank with a spray pipe is one of the indispensable key devices. The pressurized cleaning liquid passes through the nozzle on the spray pipe to generate high-speed jet flow, so that the cleaning of the cleaned object such as a metal plate belt is realized. The cleaning liquid can be clean water, acid liquor with certain concentration or degreasing agent, etc.

Due to the diversity of products, the width of the cleaned object can be changed, and the cleaned object can deviate to a certain extent in the running process, so that the most extreme working condition needs to be considered on the covering surface of the cleaning liquid, when the strip with the non-widest specification is cleaned, a certain number of nozzles are inevitably arranged at the two ends of the spray pipe to do useless work, namely the sprayed cleaning liquid does not clean the strip. Meanwhile, the liquid mist sprayed from the nozzle at the end part of the spray pipe at the lower part of the strip material has a certain part which can directly enter the mist discharge port due to no shielding of the strip material, thereby causing the loss of the cleaning liquid and possibly causing the damage of the mist discharge equipment.

On a metal annealing treatment line, after the strip comes out of the annealing furnace, the strip needs to be further cooled by water spraying to meet the process requirements. The water spray cooler is a device in which a certain number of spray pipes are arranged on the upper and lower surfaces of a strip, and the strip is rapidly cooled by the sprayed water mist. Some strips are prone to wave formation, and the wave formation may occur at different locations in the longitudinal direction of the strip, and edge waves may be eliminated or reduced after annealing by varying the coverage of the water spray on the surface of the strip. However, to change the spray coverage of the spray pipe on the surface of the strip, the spray pipe needs to be pulled out and then the nozzle needs to be plugged or adjusted, which obviously greatly reduces the operation efficiency and is inconvenient to operate and maintain.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a partial defect of prior art can be solved at least to the energy saving and consumption reduction type belt cleaning device of spray tube, this spray tube of adoption and the strip processing system who adopts this energy saving and consumption reduction type belt cleaning device.

An embodiment of the utility model relates to a liquid spray pipe, including the body, along the body axial in a plurality of nozzles have been arranged in proper order on the body, be equipped with the guide arm in the body, the guide arm with body axial direction is parallel and in be equipped with at least one sprue, each on the guide arm the sprue matches to be equipped with one the nozzle and the two are located on the same radial cross section of body, the guide arm is connected with and is used for driving its rotation so that sprue shutoff or the skew guide arm actuating mechanism who corresponds the nozzle.

As an embodiment, the guide rod is coaxially arranged with the pipe body; or the axis of the guide rod is deviated from the axis of the tube body and is positioned on one side of the axis of the tube body close to each nozzle.

As one embodiment, the pipe body comprises a middle normal spraying area and two spraying adjusting areas respectively arranged at two sides of the middle normal spraying area, and each blocking block is distributed in the two spraying adjusting areas.

As one embodiment, each spraying adjusting area comprises a plurality of spraying adjusting sections, and each spraying adjusting section is provided with at least one nozzle;

in each spraying adjusting section, the number and the layout of the plugging blocks matched with each nozzle are the same;

in two adjacent spraying adjusting sections, the number of the blocking blocks matched with a single nozzle of one spraying adjusting section is different from the number of the blocking blocks matched with a single nozzle of the other spraying adjusting section.

In one embodiment, when a plurality of blocks are matched with a single nozzle, the blocks corresponding to the nozzle are uniformly arranged along the circumferential direction of the pipe body at intervals.

As one embodiment, each of the blocks of each spray regulation area comprises at least one axial block column, the number of the blocks of the axial block column is the same as that of the nozzles of the spray regulation area, and the arrangement direction of each block is parallel to the axis of the pipe body; at least two axial plugging block rows in the two spraying adjusting areas are collinear.

As one embodiment, in each spraying adjustment zone, the number of the blocks matched with a single nozzle of each spraying adjustment section is sequentially increased from the middle normal spraying zone to the end part of the corresponding side pipe body.

As one embodiment, the guide rod driving mechanism includes a guide rod driving unit connected to the guide rod, two quick connectors capable of being used for male-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 at one end of the pipe body.

The embodiment of the utility model provides an energy saving and consumption reduction type belt cleaning device is still related to, including the cleaning vessel, be formed with strip operation passageway in the cleaning vessel, in strip operation passageway top and below are equipped with an at least scavenge pipe, at least part respectively the scavenge pipe adopts as above spray tube.

The embodiment of the utility model provides a still relate to a strip processing system, have pickling station and washing station, in the strip pickling device has been arranged on the pickling station, in it has as above to arrange energy saving and consumption reduction type belt cleaning device on the washing station.

The embodiment of the utility model provides a following beneficial effect has at least:

the utility model discloses a set up the guide arm in order to drive sprue shutoff or skew nozzle in the spray tube body for the spray tube has multiple hydrojet mode, can select the quantity of the nozzle that drops into use according to concrete operating mode, practices thrift the cleaning performance effectively, reduces the washing liquid dissipation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic plan view of a cleaning device according to an embodiment of the present invention;

fig. 2-4 are cross-sectional views along a-a and along B-B of fig. 1 at different spray widths.

FIG. 5 is a schematic structural view of an energy-saving and environment-friendly pickling apparatus provided in the fourth embodiment of the present invention;

fig. 6 is a schematic plan view of an energy-saving and environment-friendly pickling apparatus provided in the fourth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1, the present invention provides a liquid spraying tube 202, which includes a tube 2021, and a plurality of nozzles 2022 are sequentially arranged on the tube 2021 along the axial direction of the tube, the arrangement direction of the nozzles 2022 is generally linear and parallel to the axial direction of the tube, the spraying direction of the nozzles 2022 is generally the same, and the nozzles 2022 are preferably uniformly spaced.

As shown in fig. 1, a guide rod 2023 is disposed inside the tube 2021, the guide rod 2023 is axially parallel to the tube and is provided with at least one block 2024 on the guide rod 2023, each block 2024 is matched with one nozzle 2022 and is located on the same radial section of the tube 2021, and the guide rod 2023 is connected with a guide rod driving mechanism for driving the rotation thereof to block or deviate the block 2024 from the corresponding nozzle 2022.

The block 2024 may be mounted to the guide 2023 by a block bracket, which may be understood to be disposed radially along the tube 2021. The guide rod driving mechanism drives the guide rod 2023 to rotate around its own axis, and can drive each block 2024 to rotate along with the rotation, i.e., the block 2024 rotates around the guide rod 2023.

The guide rod 2023 is preferably disposed coaxially with the tube 2021, and the 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 is deviated 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, the distance between the blocking surface of the 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, during the rotation of each block 2024 along with the guide rod 2023, only when the block rotates to be opposite to the corresponding nozzle 2022, the block will contact the inner wall of the tube body 2021 to block the corresponding nozzle 2022, and at the rest of the time, the block 2024 will not contact the inner wall of the tube body 2021, so as to reduce the abrasion of the block 2024 and prevent the friction force applied to the block 2024 from being continuously transmitted to the guide rod 2023 to affect the service life of the guide rod 202.

Wherein the block 2024 is preferably a rubber block; the blocking surface of the blocking block 2024 is preferably an arc surface having the same curvature as the inner wall of the pipe body 2021, and in the above-mentioned structure in which the guide rod 2023 is eccentrically arranged, the blocking surface of the blocking block 2024 may be an arc surface adapted to be inscribed in the pipe wall of the nozzle 2022, so as to ensure the blocking effect on the liquid inlet of the nozzle 2022. Further preferably, as shown in fig. 2 to 4, the central part of the blocking surface of the block 2024 is provided with a groove, so that the friction between the block 2024 and the tube wall can be reduced to some extent.

In the liquid spraying pipe 202, a part of the nozzles 2022 may be disposed without the block 2024, that is, the part of the nozzles 2022 may be kept in a normal spraying/normal opening state, and the other nozzles 2022 may be controlled to open and close by blocking or not blocking the corresponding block 2024, so that a normal spraying area and a spraying adjustment area are correspondingly formed on the pipe 2021, and further preferably, the normal spraying area is located in the middle of the pipe 2021, and two spraying adjustment areas are disposed on the left and right sides of the normal spraying area, that is, the pipe 2021 includes a middle normal spraying area and two spraying adjustment areas disposed on the two sides of the middle normal spraying area, and each block 2024 is disposed in the two spraying adjustment areas. The liquid spraying pipe 202 with the structure can be suitable for engineering applications such as cleaning and cooling of strips, and further preferably, the two spraying adjusting areas are symmetrically arranged relative to the middle normal spraying area, so that the uniformity of treatment such as cleaning/cooling of the strips is ensured.

It can be understood that when the middle normal spray area comprises 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, and when the middle normal spray area comprises an odd number of nozzles 2022, one of the nozzles 2022 is located on the center line of the strip processing unit, and the other nozzles 2022 are symmetrically arranged relative to the center line of the strip processing unit.

In the spray adjusting area, the number of the blocks configured for each nozzle 2022 may be the same, or configured differently; the nozzles 2022 may be configured with the same number of blocks, and the arrangement of the blocks 2024 may be different, for example, two adjacent nozzles 2022 may be configured with the same number of blocks but with the blocks 2024 arranged in a staggered manner, so that the two nozzles 2022 alternately spray liquid.

In a preferred embodiment, each of said spray conditioning zones comprises a plurality of spray conditioning sections, each spray conditioning section being provided with at least one spray nozzle 2022; in each spraying adjustment section, the number and the layout of the plugging blocks matched with each nozzle 2022 are the same, and the liquid spraying time of each nozzle 2022 in the spraying adjustment section is the same, namely, liquid is sprayed simultaneously or plugged simultaneously; in two adjacent spray adjusting sections, the number of the blocks matched with the single spray nozzle 2022 of one spray adjusting section is different from the number of the blocks matched with the single spray nozzle 2022 of the other spray adjusting section. Based on the structure, the sectional liquid spraying control of the liquid spraying pipe 202 can be realized, when the liquid spraying of one spraying adjusting section works, the nozzle 2022 of the other spraying adjusting section can be blocked to stop the liquid spraying, so that the spraying coverage of the liquid spraying pipe 202 is adjustable.

Preferably, when a plurality of blocks 2024 are matched with a single nozzle 2022, the blocks 2024 corresponding to the nozzle 2022 are uniformly spaced along the circumference of the tube 2021, so as to facilitate adjustment and control. The blocks 2024 corresponding to the nozzle 2022 may be disposed annularly at 360 ° with respect to the guide 2023, or disposed in a fan shape with respect to the guide 2023.

In a further preferred embodiment, each of the blocks 2024 of each spray conditioning zone comprises at least one axial block row, the number of blocks of the axial block row is the same as the number of nozzles 2022 of the spray conditioning zone and the arrangement direction of the blocks 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 disposed in one-to-one correspondence with the nozzles 2022 of the shower adjustment area, and the direction of the linear arrangement of the blocks 2024 of the axial block row is parallel to the axis of the pipe body, so that the axial block row can simultaneously block the nozzles 2022 of the shower adjustment area, that is, the shower adjustment area is closed.

Further, at least two axial plugging block rows in the two spraying regulation areas are collinear, namely, one axial plugging block row of one spraying regulation area is collinear with one axial plugging block row of the other spraying regulation area, so that when the guide rod 2023 rotates, each nozzle 2022 of the two spraying regulation areas can be plugged simultaneously, and only the rest middle normal spraying area works to obtain the minimum spraying width.

In a further preferred embodiment, in each spray regulation zone, the number of the blocks matched with the single spray nozzle 2022 of each spray regulation section is increased in sequence from the middle constant spray zone to the end of the corresponding side pipe body 2021. For example, from the middle normal spray zone to the end of the corresponding side pipe 2021, the spray adjustment zone includes a first spray adjustment section and a second spray adjustment section that are sequentially arranged, an nth spray adjustment section (N is greater than 2), the number of the blocks matched with each nozzle 2022 in the first spray adjustment section is 1, the number of the blocks matched with each nozzle 2022 in the second spray adjustment section is 2, the process is repeated by analogy, and the number of the blocks matched with each nozzle 2022 in the nth spray adjustment section is N. Based on the above embodiment, the probability of closing the nozzles 2022 gradually increases from the middle normal spray region toward the end of the corresponding side pipe 2021, and the spray coverage of the liquid spray pipe 202 can be gradually reduced.

Further, in the above embodiment, in each spray regulation area, there is one of the above axial block rows, and the axial block row is used as a reference row; in each block 2024 matched to each nozzle 2022, each adjacent two blocks 2024 have a central angle θ with respect to the guide 2023, that is, are sequentially arranged with the same arc length pitch starting from the reference column. Then, each nozzle 2022 corresponding to the reference column block is used as an initial position, after the guide rod 2023 rotates by θ, the first spraying adjustment section is put into operation, after the guide rod 2023 rotates by 2 θ, the first spraying adjustment section and the second spraying adjustment section are put into operation, and after that, when the guide rod 2023 rotates by θ, one spraying adjustment section is put into operation to realize the gradual increase of the spraying width of the liquid spraying pipe 202, and when the guide rod 2023 rotates by θ, the reverse operation is carried out to realize the gradual decrease of the spraying width of the liquid spraying pipe 202.

In the exemplary embodiment shown in fig. 1, the spray conditioning zone comprises two spray conditioning sections, each having a spray nozzle 2022, wherein the spray nozzles 2022 in the first spray conditioning section are assigned one block 2024, and the spray nozzles 2022 in the second spray conditioning section are assigned two blocks 2024, the two blocks 2024 being at an angle of 90 ° with respect to the center of the guide 2023. Fig. 2 corresponds to the case where the object to be cleaned has the widest specification, and each nozzle 2022 is in an open state; fig. 3 corresponds to the case where the object to be cleaned is of the second-order width, in which the nozzles 2022 in the first spray regulation section are in the open state and the nozzles 2022 in the second spray regulation section are in the closed state; fig. 4 corresponds to the case where the object to be cleaned has the narrowest specification, and the nozzles 2022 in the first and second shower adjustment stages are both in the closed state. Obviously, when the number of the shower adjusting sections is increased correspondingly, the width specification of the object to be cleaned to which the liquid ejecting pipe 202 is applied is widened correspondingly.

Continuing with the structure of the liquid spray tube 202, as shown in fig. 1, the guide rod driving mechanism includes a guide rod driving unit connected to the guide rod 2023, two quick connectors capable of being used for male-female assembly, and a positioning pin for locking and assembling the two quick connectors together, where one quick connector is fixed to the guide rod 2023, and the other quick connector is fixed to one end of the tube 2021, the male-female quick connector matching structure is available in the market, and the detailed structure thereof is not described herein.

Of course, the guide bar driving mechanism is not limited to the above-described structure, and the self-locking rotation driving mechanism is applicable to the present embodiment, and for example, the motor + reducer combination structure may be directly used for driving.

Further to the above embodiment, as shown in fig. 1, a pipe body 2021 is provided with a plug 2025 at one end, and the plug 2025 may be a threaded plug 2025 adapted to be threadedly fitted with the pipe body 2021 for plugging the end of the pipe body 2021. In this embodiment, the plug 2025 is provided with a limiting hole, for example, a hole body directly formed on the plug 2025, or a limiting tube installed on the plug 2025, the guide rod 2023 is inserted into the limiting hole, the diameter of the limiting hole is the same as or substantially the same as that of the guide rod 2023, the guide rod 2023 can be axially and radially limited, and with the continuous tightening of the plug 2025, the pressure applied to the guide rod 2023 by the limiting hole is increased, and the pressure is finally transmitted to each block 2024, so that the block is tightly attached to the inner wall of the tube 2021. The structure ensures the fastening effect of the guide rod 2023 as much as possible on the premise of not hindering the rotation of the guide rod 2023, can reduce the deformation and other conditions of the guide rod 2023 in the using process, and ensures the blocking effect of the blocking block 2024 on the nozzle 2022.

Example two

The embodiment of the utility model provides an energy saving and consumption reduction type belt cleaning device 2, including wasing container 201, be formed with strip operation passageway in wasing container 201, in strip operation passageway top and below are equipped with an at least scavenge pipe, at least part respectively the scavenge pipe adopts the hydrojet 202 that the above-mentioned embodiment three provided.

The cleaning vessel 201 may be a cleaning tank, a cooling tank, or the like.

Generally, a plurality of cleaning pipes are provided above and below the tape running path in the tape running direction, and each cleaning pipe preferably employs the above-described liquid ejecting pipe 202.

EXAMPLE III

The embodiment of the utility model provides a strip processing system has pickling station and washing station, in strip pickling installation 1 has been arranged on the pickling station, in energy saving and consumption reduction type belt cleaning device 2 that above-mentioned embodiment two provided has been arranged on the washing station.

Example four

The embodiment of the utility model provides an energy-concerving and environment-protective type acid dip pickle can be used to among the third embodiment of the aforesaid, as strip acid dip pickle wherein.

As shown in fig. 5 and 6, the energy-saving and environment-friendly pickling apparatus includes a pickling tank 102, an overflow port 104 is provided on the pickling tank 102, the pickling tank 102 preferably includes a tank body 102 and a tank cover, the tank cover covers the tank body 102 to enclose a relatively closed cavity for storing acid solution, in one embodiment, the tank cover includes an outer cover 1101 and an inner cover 1102, the inner cover 1102 is press-fitted on an inner supporting table at the top of the tank body 102, so as to provide good sealing performance for the acid solution and acid mist in the cavity, and the outer cover 1101 can further improve the sealing performance of the pickling apparatus 1.

Further, a plurality of side wall protection blocks 111 can be arranged on the inner wall of the tank body, for example, each side wall protection block 111 is arranged on the inner cover bearing platform, and the side wall of the tank body can be prevented from being damaged due to deviation of the strip in the running process.

The overflow opening 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.

The structure of the pickling device 1 is further optimized, at least one end of the pickling tank 102 is a liquid separation end 103, the liquid separation end 103 is provided with a supporting dam 1031 and a liquid blocking dam 1032, the supporting dam 1031 extends upwards from the bottom of the tank, the liquid blocking dam 1032 extends downwards from the top of the tank, the supporting dam 1031 and the liquid blocking dam 1032 respectively extend to the vicinity of a strip running channel, and the distance between the two dams can allow the strip to pass through; alternatively, the distance between the support dam 1031 and the liquid blocking dam 1032 is smaller than the thickness of the belt material, and the support dam 1031 and/or the liquid blocking dam 1032 is an elastic dam, so that the belt material can press the elastic dam and pass through between the support dam 1031 and the liquid blocking dam 1032.

In a preferred embodiment, both ends of the pickling tank 102 are provided with liquid isolating ends 103; obviously, the two ends of the pickling tank 102 corresponding thereto here are the two ends of the pickling tank 102 in the strip running direction.

In a preferred embodiment, the supporting dam 1031 serves to support the strip while serving as a dam against the acid, i.e., the top end of the supporting dam 1031 extends to be flush with the lower end of the strip running passage, e.g., the supporting dam 1031 is an abrasion-resistant block adapted to support the strip; the holding dam 1031 also has acid corrosion resistance, and at the same time, the holding dam 1031 also preferably absorbs impact force due to, for example, shaking of the strip or a bad plate shape to some extent, and the wear-resistant block is (for example, made of) a material of the wear-resistant block. In another embodiment, the support dam 1031 does not contact the lower surface of the strip during normal operation, for example, a slight gap is provided between the top end of the support dam 1031 and the lower end of the strip path.

In a preferred embodiment, the bottom end of the dam 1032 is in contact with the upper surface of the strip or has a gap with the upper surface of the strip as small as possible (preferably not larger than 1mm) during normal operation, i.e. the lower end of the dam 1032 extends flush with the upper end of the strip running path or the lower end of the dam 1032 is above and close to the strip running path. In this embodiment, the liquid blocking dam 1032 is preferably an elastic dam, which can better absorb the impact force caused by the shaking and bad shape of the strip while blocking the acid liquid from flowing out of the upper portion of the strip, and can also be adapted to different strip thicknesses. The liquid blocking dam 1032 may be fixed to the inner cap platform, and the upper end thereof may contact the inner cap 1102; preferably removably mounted to the inner cap platform, e.g., clamped or secured by screws, etc.

For the elastic dam, the elastic dam can be a modified rubber block which is resistant to abrasion and acid corrosion; of course, other elastomeric materials may be used, but preferably have acid corrosion resistance.

In the energy-saving and environment-friendly pickling device 1 provided by the embodiment, the liquid isolating end 103 formed by the bearing dam 1031 and the liquid blocking dam 1032 is arranged, so that a relatively closed cavity convenient for storing acid liquid is formed in the pickling tank 102, and since the high-speed jet flow is not needed to perform liquid sealing on the acid liquid at two ends of the pickling tank 102, a large amount of acid mist is not generated, and thus, the acid consumption and the cost of subsequent acid mist treatment are reduced; meanwhile, because no nozzle for liquid sealing is arranged, the adaptability of the pickling tank 102 is greatly enhanced, and the situations that the nozzle is blocked, the pickling tank cannot be filled with acid liquor and pickling failure is caused due to the fact that the impurity content in the acid liquor is high when varieties such as silicon steel are pickled are avoided.

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, a small amount of acid solution still overflows from both ends of the pickling tank 102, and accordingly, as shown in fig. 5 and 6, a transition tank 105 for collecting the acid solution flowing out from the end is connected to the outside of the liquid isolating end 103, and an acid solution return opening 1051 and a strip running channel are arranged on the transition tank 105. The acid liquor collected in the transition tank 105 can flow out through the acid liquor return opening 1051 to be recycled by the pickling device 1. The bottom of the transition tank 105 is preferably lower than the top end of the bearing dam 1031, and more preferably, the bottom of the transition tank 105 is lower than the bottom of the pickling tank 102, so that the acid liquid can be conveniently collected and refluxed. Furthermore, an end mist discharge port is also arranged on the transition groove 105 to prevent the acid mist from overflowing from the transition groove 105.

Generally, a wiping roller 106 is respectively arranged on the strip inlet side and the strip outlet side of the pickling tank 102, and for the structure provided with the transition tank 105, the wiping roller 106 on the liquid isolation end 103 side is arranged in the corresponding transition tank 105, so that the occupied area is reduced.

Further optimizing the structure of the pickling apparatus 1, as shown in fig. 5 and 6, the side walls of the pickling tank 102 are provided with a plurality of side nozzles 109 for spraying acid liquid, so that not only can acid liquid be supplied into the pickling tank 102 through each side nozzle 109, but also the acid liquid can be sprayed into the pickling tank through the side nozzles 109 at a high speed, so that the overall turbulence intensity of the acid liquid in the pickling tank can be remarkably improved, and the pickling effect can be improved. Wherein, preferably, a plurality of side nozzles 109 are arranged on the two side walls of the pickling tank 102; in a further preferred embodiment, as shown in fig. 5 and 6, each side nozzle 109 is located in the same horizontal plane as the strip running channel, and the spraying direction of the side nozzles 109 is towards the strip running channel, so that the effect of improving the overall turbulence intensity of the acid in the bath, particularly the turbulence intensity of the acid in the vicinity of the strip, is better.

The structure of the pickling device 1 is further optimized, 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 strip running direction, and the axis of the free pressing rollers 107 is perpendicular to the strip running direction. It will be readily understood that the arrangement of the free pressing roller 107 is such as to ensure rolling contact with the upper surface of the strip, as the skilled person will readily arrange, depending on the case, for example with its bottom end flush with the top end of the path of travel of the strip. Obviously, the axis of the above-mentioned free pressing roller 107 is also generally parallel to the horizontal direction; the respective pressing rollers 107 are arranged in parallel, and it is further preferable that the respective pressing rollers 107 are arranged at intervals. In the embodiment, the free pressing roller 107 is arranged, and the free pressing roller 107 rotates around the axis of the free pressing roller 107 under the driving of the friction of the strip, so that the acid liquid boundary layer on the upper surface of the strip can be continuously torn, the turbulence of the acid liquid is enhanced, the diffusion speed of hydrogen ions in the boundary layer on the surface of the strip is increased, and the acid washing effect is effectively improved.

In an alternative embodiment, the free press roll 107 includes a roll core fixed to the pickling tank 102 and a rolling ring rotatably sleeved on the roll core, and the roll core and the rolling ring are preferably made of an acid corrosion resistant material with good wear resistance and self-lubricating property. Further preferred structures are: the rolling ring cylinder and the roller shaft core are provided with a gap, namely the inner diameter of the rolling ring cylinder is larger than the diameter of the roller shaft core (preferably slightly larger than the diameter of the roller shaft core), so that the rolling ring cylinder is easier to rotate along with the friction of the strip, and simultaneously, the impact force caused by the shaking of the strip can be buffered.

The structure of the pickling device 1 is further optimized, as shown in fig. 5 and 6, a plurality of free supporting 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, and the axes of the free supporting rollers 108 are perpendicular to the strip running direction. It will be readily appreciated that the arrangement of the free idler 108 is such that it is in rolling contact with the lower surface of the strip, as will be readily apparent to those skilled in the art, as the case may be, for example, its top end is flush with the bottom end of the path of travel of the strip. Obviously, the axis of the free idler 108 is also generally parallel to the horizontal direction; the respective idler rollers 108 are arranged in parallel, and more preferably, the respective idler rollers 108 are arranged at intervals. In the embodiment, by arranging the free carrier roller 108, the free carrier roller 108 rotates around the axis thereof under the driving of the friction of the movement of the strip while supporting the strip, so that the acid liquid boundary layer on the lower surface of the strip can be continuously torn, the turbulence of the acid liquid is enhanced, the diffusion speed of hydrogen ions in the boundary layer on the surface of the strip is increased, and the pickling effect is effectively improved. The adoption of andesite supporting strips is avoided, so that the problem of scratching the lower surface of the strips in the operation process is solved.

In an alternative embodiment, the free idler 108 includes an idler core fixed to the pickle tank 102 and a rolling sleeve rotatably mounted on the idler core. The roller core and the rolling sleeve are preferably made of acid corrosion resistant materials with better wear resistance and self-lubricating property.

Further preferably, a space is reserved between the bottom of the free carrier roller 108 and the bottom of the pickling tank 102 (the bottom plate of the pickling tank 102), so that the integrity of the inclined surface of the bottom plate is ensured, insoluble sediments are not accumulated locally, and the difficulty of deposition and dredging is reduced.

The number of the free pressing rollers 107 and the number of the free carrier rollers 108 are the same under the condition that the free pressing rollers 107 and the free carrier rollers 108 are arranged at the same time, the free pressing rollers 107 and the free carrier rollers 108 are arranged in a one-to-one correspondence mode, in each pair of the free pressing rollers 107 and the free carrier rollers 108 which are arranged up and down, the free pressing rollers 107 and the free carrier rollers can be opposite up and down, the free pressing rollers can also be arranged in a staggered mode along the running direction of the strip.

In addition, the lowest point of the bottom of the pickling tank 102 is provided with a communication port, a part of acid liquor is continuously discharged in a small flow for recycling through the communication port in production, and part of impurities deposited at the bottom of the pickling tank 102 can be discharged together with the acid liquor. The lowest point of the bottom of the pickling tank 102 is also provided with a drain port, so that when the unit is temporarily stopped or overhauled and stopped, the acid liquor in the pickling tank 102 can be quickly drained through the drain port. After the unit is stopped, acid liquor is completely drained through the drain port, and after the outer cover 1101, the inner cover 1102 and the free pressing roller 107 are lifted and opened by the cover uncovering machine, the tank can be accessed for maintenance and cleaning operation. The pickling tank 102 is also provided with a water seal tank, discontinuous places of the water seal tank are communicated through a water seal tank communicating pipe, and the water seal tank can provide good sealing performance for acid mist generated by the pickling tank 102.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a liquid spray pipe, includes the body, along the body axial in a plurality of nozzles have been arranged in proper order on the body, its characterized in that: the nozzle is arranged on the pipe body, the guide rod is axially parallel to the pipe body, at least one blocking block is arranged on the guide rod, each blocking block is matched with one nozzle, the two nozzles are located on the same radial section of the pipe body, and the guide rod is connected with a guide rod driving mechanism which is used for driving the guide rod to rotate so that the blocking block blocks or deviates from the corresponding nozzle.

2. The spray tube of claim 1, wherein: the guide rod and the pipe body are coaxially arranged; or the axis of the guide rod is deviated from the axis of the tube body and is positioned on one side of the axis of the tube body close to each nozzle.

3. The spray tube of claim 1, wherein: the pipe body comprises a middle normal spraying area and two spraying adjusting areas which are respectively arranged at two sides of the middle normal spraying area, and each blocking block is distributed in the two spraying adjusting areas.

4. The spray tube of claim 3, wherein: each spraying adjusting area comprises a plurality of spraying adjusting sections, and each spraying adjusting section is provided with at least one nozzle;

in each spraying adjusting section, the number and the layout of the plugging blocks matched with each nozzle are the same;

in two adjacent spraying adjusting sections, the number of the blocking blocks matched with a single nozzle of one spraying adjusting section is different from the number of the blocking blocks matched with a single nozzle of the other spraying adjusting section.

5. The spray tube of claim 4, wherein: when a plurality of blocks are matched with a single nozzle, all the blocks corresponding to the nozzle are uniformly arranged at intervals along the circumferential direction of the pipe body.

6. The spray tube of claim 4, wherein: each plugging block of each spraying adjusting area comprises at least one axial plugging block row, the number of the plugging blocks of the axial plugging block row is the same as that of the nozzles of the spraying adjusting area, and the arrangement direction of each plugging block is parallel to the axis of the pipe body; at least two axial plugging block rows in the two spraying adjusting areas are collinear.

7. The spray tube of claim 4, wherein: in each spraying adjusting area, the number of the plugging blocks matched with a single nozzle of each spraying adjusting section is sequentially increased from the middle normal spraying area to the end part of the corresponding side pipe body.

8. The spray tube of claim 1, wherein: the guide rod driving mechanism comprises a guide rod driving unit connected with the guide rod, two quick connectors capable of being used for male-female assembly and a positioning pin used 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 at one end of the pipe body.

9. The utility model provides an energy saving and consumption reduction type belt cleaning device, includes the cleaning container, be formed with strip operation passageway in the cleaning container, in strip operation passageway top and below are equipped with an at least scavenge pipe respectively, its characterized in that: the liquid spray tube according to any one of claims 1 to 8 is used for at least part of the cleaning tube.

10. The utility model provides a strip processing system, has pickling station and washing station, in the pickling station is last to have arranged strip pickling unit, its characterized in that: an energy-saving consumption-reducing type cleaning device as claimed in claim 9 is arranged on the cleaning station.

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