CN113151839A - Strip steel rinsing device, strip steel pickling system and pickled strip steel cleaning method - Google Patents
Strip steel rinsing device, strip steel pickling system and pickled strip steel cleaning method Download PDFInfo
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- CN113151839A CN113151839A CN202110281998.7A CN202110281998A CN113151839A CN 113151839 A CN113151839 A CN 113151839A CN 202110281998 A CN202110281998 A CN 202110281998A CN 113151839 A CN113151839 A CN 113151839A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 177
- 239000010959 steel Substances 0.000 title claims abstract description 177
- 238000005554 pickling Methods 0.000 title claims abstract description 30
- 238000004140 cleaning Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 7
- 239000008237 rinsing water Substances 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 239000013072 incoming material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
- C23G3/029—Associated apparatus, e.g. for pretreating or after-treating for removing the pickling fluid from the objects
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a strip steel rinsing device.A rinsing mechanism on the strip steel rinsing device comprises a first nozzle group and a second nozzle group, wherein each first nozzle is obliquely downwards sprayed towards a feeding side, the intersecting track between the jet flow of each first nozzle and a strip steel running channel is a straight line, the intersecting track between the jet flow of each second nozzle and the strip steel running channel is a solid circle, and the track of the solid circle is positioned at the downstream of the straight line track; and/or the lower rinsing mechanism comprises at least one group of third nozzle groups, and the intersecting track between the jet flow of each third nozzle and the strip steel running channel is a solid circle. In addition, the strip steel pickling system and the pickling strip steel cleaning method adopting the strip steel rinsing device are also disclosed. According to the invention, the first nozzle group can clean the residual acid liquor on the upper surface of the strip steel, the second nozzle group can form a liquid film layer on the upper surface of the strip steel, and the third nozzle group can form a liquid curtain on the lower surface of the strip steel, so that the air isolation effect is achieved, the growth of rust spots on the surface of the strip steel can be effectively inhibited, and the cleaning effect and the plate surface quality of the acid-cleaned strip steel are improved.
Description
Technical Field
The invention belongs to the technical field of strip steel acid washing, and particularly relates to a strip steel rinsing device, a strip steel acid washing system adopting the strip steel rinsing device and an acid-washing strip steel cleaning method adopting the strip steel rinsing device.
Background
Before cold rolling, the oxide scales on the surface of the hot-rolled strip steel need to be removed completely, and at present, acid pickling is still the most efficient means for removing the oxide scales, namely, the strip steel is soaked in an acid pickling device filled with acid liquor at a certain temperature, and after the strip steel passes through the acid pickling device at a certain speed, the oxide scales on the surface of the strip steel are removed under the chemical action of the acid liquor.
After the pickling process is finished, the surface of the strip needs to be rinsed so as to thoroughly remove residual acid liquor on the surface of the strip and prevent the surface of the dried strip from rusting. At present, the combination of pre-rinsing and subsequent multi-stage rinsing is an effective strip steel rinsing scheme, wherein the pre-rinsing is more critical for preventing rust spots from being generated on the surface of a strip steel, but the acid liquor on the surface of the strip steel cannot be thoroughly removed by the pre-rinsing, so that the rust spots begin to grow when the surface of the strip steel enters the first-stage rinsing, and the rust spots cannot be removed by the subsequent rinsing, the quality of the plate surface is finally influenced, and even waste products can be generated.
Disclosure of Invention
The invention relates to a strip steel rinsing device, a strip steel pickling system adopting the strip steel rinsing device and a pickling strip steel cleaning method adopting the strip steel rinsing device, which can at least solve part of defects in the prior art.
The invention relates to a strip steel rinsing device, which comprises an upper rinsing mechanism arranged above a strip steel running channel and a lower rinsing mechanism arranged below the strip steel running channel,
the upper rinsing mechanism comprises a first nozzle group and a second nozzle group; the first nozzle group comprises a plurality of first nozzles which are arranged in a row along the width direction of the strip steel running channel, the first nozzles are obliquely downwards sprayed towards the incoming material side, and the intersecting track between the jet flow of the first nozzles and the strip steel running channel is a straight line; the second nozzle group comprises a plurality of second nozzles which are arranged along the width direction of the strip steel running channel, and the intersecting track between the jet flow of the second nozzles and the strip steel running channel is a solid circle; in addition, along the length direction of the strip steel running channel, the solid circular track is positioned at the downstream of the linear track;
and/or the lower rinsing mechanism comprises at least one group of third nozzle groups, each third nozzle group comprises a plurality of third nozzles which are arranged in the width direction of the strip steel running channel, and the intersecting track between the jet flow of each third nozzle and the strip steel running channel is a solid circle.
In one embodiment, the upper rinsing mechanism further includes a composite jet nozzle, and the first nozzle group and the second nozzle group are integrally arranged on the composite jet nozzle.
In one embodiment, the first nozzle is a fan nozzle.
In one embodiment, the second nozzle is a solid cone nozzle.
In one embodiment, the third nozzle is a solid cone nozzle.
In one embodiment, a pressure pump is disposed in the rinse water supply pipe of the upper rinsing mechanism and/or the rinse water supply pipe of the lower rinsing mechanism.
In one embodiment, the rinse water supply pipe of the upper rinsing mechanism and/or the rinse water supply pipe of the lower rinsing mechanism is connected to a pure water source.
The invention also relates to a strip steel pickling system which comprises at least one pickling section, a pre-rinsing unit and at least one rinsing section, wherein the pre-rinsing unit adopts the strip steel rinsing device.
As an embodiment, the pre-rinsing unit is arranged in an acid tank of the end pickling section.
The invention also relates to a cleaning method of the acid-washing strip steel, which comprises the following steps:
pre-rinsing the strip steel after the pickling, and then performing at least one section of rinsing treatment;
the pre-rinsing treatment adopts the strip steel rinsing device, when an upper rinsing mechanism in the strip steel rinsing device is adopted, the residual acid liquor on the upper surface of the strip steel is cleaned through the first nozzle group, and a liquid film layer is formed on the upper surface of the strip steel through the second nozzle group so as to isolate air; when the lower rinsing mechanism in the strip steel rinsing device is adopted, a liquid curtain is formed on the lower surface of the strip steel through each third nozzle group so as to isolate air.
The invention has at least the following beneficial effects:
the strip steel rinsing device provided by the invention adopts two groups of nozzle groups and carries out the model selection design on the two groups of nozzle groups, the first nozzle group can clean residual acid liquor on the upper surface of strip steel, the second nozzle group can form a liquid film layer on the upper surface of strip steel, and the third nozzle group can form a liquid curtain on the lower surface of strip steel, so that the effect of isolating air is achieved, the growth of rust spots on the surface of strip steel can be effectively inhibited, and the cleaning effect and the plate surface quality of acid-cleaned strip steel are improved.
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 structural diagram of a strip steel pickling system provided by an embodiment of the invention;
FIG. 2 is a schematic view of a mounting structure of a first nozzle and a second nozzle on a composite jet nozzle provided by an embodiment of the invention;
FIG. 3 is a schematic diagram of the distribution of the jet trajectories of a first nozzle group and a second nozzle group on the surface of strip steel according to an embodiment of the invention;
FIG. 4 is a schematic view of a third nozzle mounted on the lower jet nozzle according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the jet trajectory distribution of the third nozzle group on the surface of the strip steel according to the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, an embodiment of the present invention provides a strip steel rinsing device, including an upper rinsing mechanism 1 disposed above a strip steel running channel and a lower rinsing mechanism disposed below the strip steel running channel, where the upper rinsing mechanism 1 is configured to rinse and clean an upper surface of strip steel, and the lower rinsing mechanism is configured to rinse and clean a lower surface of strip steel.
The strip steel rinsing device can be used for pre-rinsing operation of pickling strip steel and can also be used for normal rinsing operation after pre-rinsing. When the strip steel rinsing device is used for pre-rinsing operation, the strip steel rinsing device can be arranged in the tail-end acid tank 2, and the strip steel rinsing device can be not provided with a rinsing tank body; when the strip steel rinsing device is used for normal rinsing operation, the strip steel rinsing device can be correspondingly provided with a rinsing groove body.
In a preferred embodiment, as shown in fig. 2, the upper rinsing mechanism 1 includes a first nozzle group and a second nozzle group; the first nozzle group comprises a plurality of first nozzles 111 which are arranged in a row along the width direction of the strip steel running channel, the first nozzles 111 are obliquely downwards sprayed towards the incoming material side, and the intersecting track between the jet flow of the first nozzles 111 and the strip steel running channel is a straight line; the second nozzle group comprises a plurality of second nozzles 112 which are arranged in a row along the width direction of the strip steel running channel, and the intersecting track between the jet flow of the second nozzles 112 and the strip steel running channel is a solid circle; in addition, along the length direction of the strip steel running channel, the solid circular track is positioned at the downstream of the linear track; and/or the lower rinsing mechanism comprises at least one group of third nozzle groups, the third nozzle groups comprise a plurality of third nozzles 121 which are arranged in a width direction of the strip steel running channel, and the intersecting track between the jet flow of the third nozzles 121 and the strip steel running channel is a solid circle.
The first nozzle group is used for cleaning the residual acid liquor on the upper surface of the strip steel, and each first nozzle 111 is sprayed towards the feeding side, namely the spraying direction of the first nozzle 111 faces the feeding side and forms an included angle with the horizontal direction, so that the residual acid liquor on the upper surface of the strip steel can be pushed towards the feeding side; optionally, the included angle is 30-60 degrees, and preferably 45 degrees. Wherein, the linear track jet of the first nozzle 111 on the upper surface of the strip steel can be parallel to the width direction of the strip steel running channel, or the linear track in fig. 3, that is, the linear track and the width direction of the strip steel running channel have an included angle (in this embodiment, the included angle is between 30-60 degrees, preferably 45 degrees), so as to push the residual acid liquor to the two sides of the strip steel, wherein, taking the central line of the strip steel running channel as a reference line, the linear track jet acting on the left side of the reference line is used for pushing the residual acid liquor to the outside of the left side of the strip steel, the linear track jet acting on the right side of the reference line is used for pushing the residual acid liquor to the outside of the right side of the strip steel, each first nozzle 111 is preferably arranged symmetrically relative to the reference line, so as to ensure the cleaning effect, the linear tracks of the two first nozzles 111 adjacent to the reference line can intersect, cleaning blind areas are avoided; the linear tracks on each side of the datum line can be positioned on the same straight line, and the adjacent linear tracks are partially overlapped, or the track distribution mode in FIG. 3 can be adopted, namely, the linear tracks on each side are staggered in the width direction and the length direction of the strip steel running channel, so that a cleaning path for gradually pushing the residual acid liquor from the central line of the strip steel to the edge of the strip steel is formed (the effect of wave folding is generated, due to the staggered jet flow tracks, the downstream jet flow generates and can inertially push the upstream residual acid liquor, and the jet flow close to the central line of the strip steel generates and can inertially push the residual acid liquor close to the edge of the strip steel), the number of required nozzles is less, and meanwhile, a cleaning blind area is avoided. In fig. 3, the injection trajectories of the 4 first nozzles 111 are shown, but obviously, the number of the first nozzles 111 is not limited to the number of the first nozzles 111, and the number of the first nozzles 111 may be designed and adjusted according to the width of the strip, the width of the linear trajectory of the first nozzles 111, and the like.
In one embodiment, the first nozzle 111 is a fan-shaped nozzle, so that the intersecting locus between the jet flow and the strip steel running channel (i.e. the upper surface of the strip steel) is a straight line parallel to the width direction of the strip steel running channel; of course, a slit nozzle is also possible.
The second nozzle group is used for forming a liquid film layer on the upper surface of the strip steel, and the liquid film layer can play a role in isolating air and can effectively inhibit the growth of rusty spots on the surface of the strip steel. Each second nozzle 112 may spray vertically downward or obliquely, preferably obliquely, and may also perform an acid cleaning function to some extent while forming the liquid film layer; further preferably, the spray is obliquely sprayed backwards, namely obliquely sprayed downwards towards the discharging side; when the inclined jet is performed, the included angle between the jet direction of each second nozzle 112 and the horizontal direction is preferably the same, so that the second nozzle group acts on the same transverse section of the steel strip, and optionally, the included angle is between 40 and 75 degrees, and is preferably 45 degrees. The spray areas of two adjacent second nozzles 112 on the upper surface of the strip steel preferably overlap to ensure that the liquid film layer completely covers the upper surface of the strip steel.
In one embodiment, the second nozzle 112 is a solid cone nozzle such that the intersecting trajectory between its jet and the strip travel path is a solid circle.
The strip steel rinsing device provided by the embodiment adopts two groups of nozzle groups and carries out the type selection design on the two groups of nozzle groups, the first nozzle group can clean the residual acid liquor on the upper surface of the strip steel, and the second nozzle group can form a liquid film layer on the upper surface of the strip steel, so that the air isolation effect is realized, the growth of rusty spots on the upper surface of the strip steel can be effectively inhibited, and the cleaning effect and the plate surface quality of the acid-cleaned strip steel are improved.
The first nozzle group and the second nozzle group can be respectively arranged on different spray pipes, and the first nozzle group and the second nozzle group can work independently. In a preferred embodiment provided by the present embodiment, the first nozzle group and the second nozzle group are arranged on the same nozzle, specifically, as shown in fig. 2, the upper rinsing mechanism 1 further includes a composite jet nozzle 113, and the first nozzle group and the second nozzle group are integrally arranged on the composite jet nozzle 113; based on the design, on one hand, the number and the occupied space of equipment can be reduced, the integration of the equipment is improved, the field management is convenient, especially when the strip steel rinsing device is used as a pre-rinsing device and is installed in the acid tank 2, the condition that the space in the acid tank 2 is limited can be better adapted, the influence on the original structure of the acid tank 2 is avoided, on the other hand, the working consistency and the working cooperativity of the first nozzle group and the second nozzle group can be ensured, and the working reliability of the strip steel rinsing device is ensured.
In practical production, the applicant finds that the rinsing liquid falls down due to the dead weight, so that the rinsing liquid cannot be accumulated on the lower surface of the strip steel, the lower surface of the strip steel is easy to contact with air, and rusty spots grow on the lower surface of the strip steel more seriously than on the upper surface of the strip steel. In this embodiment, as shown in fig. 5, by selecting the type of the third nozzle 121, the third nozzle group sprays the rinsing liquid on the lower surface of the strip steel and can form a liquid curtain on the lower surface of the strip steel, so as to isolate air and delay or inhibit the growth of rust spots on the lower surface of the strip steel; depending on the length of the open window region between the pickling and rinsing and the diameter of the solid circular path of the third nozzles 121, a plurality of sets of third nozzle sets may be provided to ensure that the liquid curtain formed by each third nozzle set at least partially covers the open window region between the pickling and rinsing, preferably substantially covers the open window region (e.g., can cover 80-90% of the length of the open window region) or completely covers the open window region.
In this embodiment, the open window area between the pickling and rinsing refers to a strip steel operation area where rust spots are likely to grow, and is related to the specific structure and layout of the pickling system; in this embodiment, as shown in fig. 1, the hollow window area is located in the overflow tank of the acid tank at the end section and between two adjacent sets of wringing rollers, the front wringing roller can remove most of the high-concentration acid liquid on the surface of the strip steel, the rear wringing roller can remove most of the rinsing liquid on the surface of the strip steel, and the strip steel at the outlet side of the rear wringing roller immediately enters the rinsing section at the first section.
Likewise, each third nozzle 121 may spray vertically upward or may spray obliquely; the spray areas of the adjacent third nozzles 121 on the lower surface of the strip preferably overlap to ensure that the liquid curtain completely covers the width of the strip. In one embodiment, the third nozzle 121 is a solid cone nozzle such that the intersecting trajectory between its jet and the strip running passage is a solid circle. In the embodiment shown in fig. 4, two sets of third spray nozzles are integrated on the same lower jet nozzle 122, the first set of third spray nozzles spraying obliquely upward toward the incoming material side, and the second set of third spray nozzles spraying obliquely rearward.
The strip steel rinsing device is preferably designed, and the upper rinsing mechanism and the lower rinsing mechanism are adopted at the same time, so that the growth of rusty spots on the surface of strip steel can be effectively inhibited, and the cleaning effect and the plate surface quality of pickled strip steel are improved.
Further optimizing the strip steel rinsing device, a pressure pump 13 is arranged on the rinsing water supply pipe of the upper rinsing mechanism 1 and/or the rinsing water supply pipe of the lower rinsing mechanism. The pressure pump 13 is arranged, so that the strip steel rinsing device can be ensured to have enough rinsing liquid flow, and the acid liquid removing effect on the strip steel is improved; when the strip steel rinsing device is used for pre-rinsing operation of pickling strip steel, the condition that the conventional pre-rinsing flow is small and the acid liquor removing capacity on the surface of the strip steel is limited is avoided. In one embodiment, as shown in fig. 1, the upper rinsing means 1 and the lower rinsing means share the same rinsing water supply pipe, the cleaning effect of the upper and lower surfaces of the strip can be improved.
Further optimize above-mentioned belted steel rinsing device, rinse water supply pipe and/or the rinse water supply pipe of rinsing mechanism under in the rinsing mechanism of going up 1 is connected with the pure water source. The pure water is used as the rinsing liquid, so that the condition that each nozzle is blocked can be avoided, the problem that the nozzles of the conventional rinsing device are easy to block is thoroughly solved, and the working reliability of the strip steel rinsing device is ensured.
Example two
Referring to fig. 1, an embodiment of the present invention provides a strip steel pickling system, which includes at least one pickling section, a pre-rinsing unit, and at least one rinsing section 3, wherein the pre-rinsing unit employs the strip steel rinsing apparatus provided in the first embodiment.
Preferably, as shown in fig. 1, the pre-rinse unit is arranged in the acid tank 2 of the end pickling section. Further, the pre-rinsing unit is arranged in the overflow groove of the tail-end acid tank 2, so that the contact between the strip steel and the acid liquor can be avoided at the pre-rinsing position, the pre-rinsing effect can be ensured, the pre-rinsing unit is arranged in the tail-end acid tank 2, and based on the design that the liquid film layer is formed on the upper surface of the strip steel through the second nozzle group and the liquid curtain is formed on the lower surface of the strip steel through the third nozzle group, in the process that the strip steel enters the first-end rinsing section 3 from the tail-end acid tank 2, the growth of rusty spots on the surface of the strip steel can be effectively inhibited due to the protection of the liquid film layer and the liquid curtain.
The rinsing section 3 can adopt the conventional equipment structure of the rinsing section 3 in the field, and can also adopt the strip steel rinsing device provided by the first embodiment.
EXAMPLE III
The embodiment of the invention provides a cleaning method of acid-washing strip steel, which comprises the following steps:
pre-rinsing the strip steel after the pickling, and then performing at least one section of rinsing treatment;
the pre-rinsing treatment adopts the strip steel rinsing device provided by the first embodiment; as shown in fig. 3, when the upper rinsing mechanism in the strip steel rinsing device is used, the residual acid solution on the upper surface of the strip steel is cleaned through the first nozzle group, and a liquid film layer is formed on the upper surface of the strip steel through the second nozzle group to isolate air; as shown in fig. 5, when the lower rinsing mechanism of the strip rinsing apparatus is used, a liquid curtain is formed on the lower surface of the strip by each of the third nozzle groups to isolate air.
The specific structure of the strip rinsing device and the related cleaning operations (including pre-rinsing with pure water, etc.) are described in the first embodiment, and will not be described herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a belted steel rinsing device, is including arranging in last rinsing mechanism of belted steel traffic lane top and arranging in the lower rinsing mechanism of belted steel traffic lane below, its characterized in that:
the upper rinsing mechanism comprises a first nozzle group and a second nozzle group; the first nozzle group comprises a plurality of first nozzles which are arranged in a row along the width direction of the strip steel running channel, the first nozzles are obliquely downwards sprayed towards the incoming material side, and the intersecting track between the jet flow of the first nozzles and the strip steel running channel is a straight line; the second nozzle group comprises a plurality of second nozzles which are arranged along the width direction of the strip steel running channel, and the intersecting track between the jet flow of the second nozzles and the strip steel running channel is a solid circle; in addition, along the length direction of the strip steel running channel, the solid circular track is positioned at the downstream of the linear track;
and/or the lower rinsing mechanism comprises at least one group of third nozzle groups, each third nozzle group comprises a plurality of third nozzles which are arranged in the width direction of the strip steel running channel, and the intersecting track between the jet flow of each third nozzle and the strip steel running channel is a solid circle.
2. The strip steel rinsing device as claimed in claim 1, characterized in that: the upper rinsing mechanism further comprises a composite jet flow spray pipe, and the first nozzle group and the second nozzle group are integrally arranged on the composite jet flow spray pipe.
3. The strip steel rinsing device as claimed in claim 1, characterized in that: the first nozzle is a fan nozzle.
4. The strip steel rinsing device as claimed in claim 1, characterized in that: the second nozzle is a solid cone nozzle.
5. The strip steel rinsing device as claimed in claim 1, characterized in that: the third nozzle is a solid cone nozzle.
6. The strip steel rinsing device as claimed in claim 1, characterized in that: and a pressure pump is arranged on the rinsing water supply pipe of the upper rinsing mechanism and/or the rinsing water supply pipe of the lower rinsing mechanism.
7. The strip steel rinsing device as claimed in claim 1, characterized in that: and the rinsing water supply pipe of the upper rinsing mechanism and/or the rinsing water supply pipe of the lower rinsing mechanism are/is connected with a pure water source.
8. The utility model provides a belted steel pickling system, includes at least one pickling section, rinses unit and at least one rinsing section in advance, its characterized in that: the pre-rinsing unit employs the strip rinsing apparatus according to any one of claims 1 to 7.
9. The strip steel pickling system of claim 8, wherein: the pre-rinsing unit is arranged in an acid tank of the tail pickling section.
10. The acid-washing strip steel cleaning method is characterized by comprising the following steps:
pre-rinsing the strip steel after the pickling, and then performing at least one section of rinsing treatment;
the pre-rinsing treatment employs the strip steel rinsing apparatus according to any one of claims 1 to 7, and when the upper rinsing mechanism in the strip steel rinsing apparatus is employed, residual acid solution on the upper surface of the strip steel is cleaned by the first nozzle group, and a liquid film layer is formed on the upper surface of the strip steel by the second nozzle group to isolate air; when the lower rinsing mechanism in the strip steel rinsing device is adopted, a liquid curtain is formed on the lower surface of the strip steel through each third nozzle group so as to isolate air.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110281998.7A CN113151839B (en) | 2021-03-16 | 2021-03-16 | Strip steel rinsing device, strip steel pickling system and pickling strip steel cleaning method |
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| CN202110281998.7A CN113151839B (en) | 2021-03-16 | 2021-03-16 | Strip steel rinsing device, strip steel pickling system and pickling strip steel cleaning method |
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| CN113151839B CN113151839B (en) | 2024-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804050A (en) * | 2021-09-29 | 2021-12-17 | 苏州热工研究院有限公司 | Multi-directional jet cleaning device suitable for steam generator |
| WO2023236640A1 (en) * | 2022-06-07 | 2023-12-14 | 中冶南方工程技术有限公司 | Strip steel edge blowing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113804050A (en) * | 2021-09-29 | 2021-12-17 | 苏州热工研究院有限公司 | Multi-directional jet cleaning device suitable for steam generator |
| CN113804050B (en) * | 2021-09-29 | 2023-08-22 | 苏州热工研究院有限公司 | Multidirectional jet flow cleaning device suitable for steam generator |
| WO2023236640A1 (en) * | 2022-06-07 | 2023-12-14 | 中冶南方工程技术有限公司 | Strip steel edge blowing device |
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| CN113151839B (en) | 2024-06-25 |
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