CN105506663B - A kind of steel strip surface pretreatment system - Google Patents
A kind of steel strip surface pretreatment system Download PDFInfo
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- CN105506663B CN105506663B CN201510928612.1A CN201510928612A CN105506663B CN 105506663 B CN105506663 B CN 105506663B CN 201510928612 A CN201510928612 A CN 201510928612A CN 105506663 B CN105506663 B CN 105506663B
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- pickling
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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
- C23G3/028—Associated apparatus, e.g. for pretreating or after-treating for thermal or mechanical pretreatment
-
- 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
- C23G3/025—Details of the apparatus, e.g. linings or sealing means
Abstract
The invention discloses a kind of steel strip surface pretreatment systems, belong to steel band processing technique field.The present invention includes peel off system and pickling system, and the system of peeling off includes decorticator, dry brushing machine and transfer roller, and pickling system includes guide roller, support roller, pressure roller I, descaling bath, pressure roller II, Rinsing Area, pressure roller III and drying air knife；Descaling bath includes more than two pickling tubes, and the lower part of adjacent pickling tube is connected, and sealing side wall is fixed on the lateral wall of pickling tube side wall, and sealing the groove formed between side wall and pickling tube side wall is water sealed tank；Acid tank cover is stamped above each pickling tube.Remaining oxide skin of steel strip surface etc. can effectively be cleaned according to the technical solution of the present invention, and can effectively prevent the leakage and waste of pickling solution, save production cost.
Description
Technical field
The present invention relates to steel band processing technique fields, more specifically to a kind of steel strip surface pretreatment system.
Background technique
Steel band is easy to happen oxidation in wet environment, and there is one layer of thicker oxide skin on surface, its finished product is caused to change colour
It is more obvious, the quality and beauty of strip product are seriously affected, therefore steel band is typically necessary elder generation before entering cold rolling process
Surface preparation is carried out, the oxide skin of removal steel strip surface attachment, current widely used pretreatment mode is at pickling
Reason, the main purpose of pickling are effective impurity for removing steel strip surface.If steel band pickling is not thorough, system is on the one hand directly resulted in
Impurity is pressed into steel strip surface during work, influences the quality of cold-rolled products；On the other hand coarse to the roll of lower road cold rolling process
Degree and emulsion service life adversely affect.Therefore the preceding working procedure as cold rolling, pickling processes process are most important.
The pickling pretreatment of steel band is usually that steel band first passes through pickling tube pickling and then passes through washing and brushing device in the prior art
It is scrubbed, brushes away the impurity of steel strip surface, then cleaned by service sink, if however steel band being direct plungeed into pickling line and is carried out
Pickling, concentration and usage amount for pickling solution require higher, and are easy to produce during pickling tube continuous acid-washing a large amount of
The pollution problems such as acid mist, waste liquid make surrounding enviroment and equipment by different degrees of corrosion, along with technology continuous propulsion and
The continuous enhancing of environmental consciousness, steel strip surface pretreatment unit are badly in need of being further improved.
About the pretreated technological improvement of steel strip surface, has related patents in the prior art and disclose, such as Chinese patent
Application number: 2013205907586, the applying date is on September 24th, 2013, invention and created name are as follows: a kind of steel band derusting pickling line,
This application is related to a kind of steel band derusting pickling line, including descaling bath and Rinsing Area, be equipped with above descaling bath acid fog absorption tower and
The stone roll slot cover of corresponding stone roll, top is equipped with excessive acid tank cover, excessive acid tank cover and stone roll slot cover between descaling bath and Rinsing Area
Junction, stone roll slot cover and acid fog absorption tower junction are equipped with groove, and clear water is marked in groove, by water seal by acid mist
Be enclosed in descaling bath, to not make acid mist leak outside, but this application can only reduce acid mist and leak into air, can not solve with
Pickling solution evaporate into groove caused by pickling solution waste the problem of, require further improvement.
Summary of the invention
Technical problems to be solved by the inivention
The present invention is bad for the cleaning effect of steel strip surface pretreatment unit in the prior art and pickling line in pickling solution
The deficiency of readily volatilized waste provides a kind of steel strip surface pretreatment system, can effectively promote the cleannes of steel strip surface,
And the waste of pickling solution is avoided, to reduce production cost, improve pickling environment.
Technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of steel strip surface pretreatment system of the invention, including peel off system and pickling system, the system packet of peeling off
The decorticator set gradually, dry brushing machine, transfer roller and storage disk are included, the decorticator includes maxilla roller mechanism and lower jaw roller machine
Structure, maxilla roller mechanism and one end of lower jaw roller mechanism are hinged, and intersect on lower jaw roller mechanism and maxilla roller mechanism and are equipped with shelling roll；
The dry brushing machine includes upper brush roll, lower brush roll, rotating disk body, first hydraulic cylinder and second hydraulic cylinder, upper brush roll and
Parallelly distribute on, the both ends of upper brush roll and lower brush roll are separately fixed on two rotating disk bodies lower brush roll up and down, first hydraulic cylinder and
Second hydraulic cylinder is hinged on the two sides of one of rotating disk body；Transfer roller includes two pressure rollers of upper and lower parallelly distribute on, steel band
Storage disk is introduced into after being pierced by between two pressure rollers；Steel band enters pickling system after being pierced by from storage disk；
Pickling system includes the guide roller set gradually from left to right, support roller, pressure roller I, descaling bath, pressure roller II, clear water
Slot, pressure roller III and drying air knife, the pressure roller I and pressure roller II are separately positioned on the entrance and exit position of descaling bath, pressure roller III
It is arranged above Rinsing Area, the exit of Rinsing Area is additionally provided with drying air knife；
The descaling bath includes more than two pickling tubes, and the lower part of adjacent pickling tube is connected, outside pickling tube side wall
Side is provided with sealing structure, including the sealing side wall being fixedly connected with pickling tube side wall, the sealing side wall and pickling tube side wall it
Between the groove that is formed be water sealed tank；Acid tank cover is stamped above each pickling tube.
Further, the acid tank cover includes inner wall, outer wall, upper cover and deflector, and inner wall is located at below upper cover, and is connected
In the surrounding position of upper cover, inner wall and upper cover form a hollow cavity, and inner wall is placed in above-mentioned water sealed tank；Outer wall is set
It sets in the outside of inner wall, and is in contact with the upper surface of sealing side wall；The medial surface of upper cover is also fixed with deflector along surrounding, institute
The inside that deflector is located at inner wall is stated, and deflector is tilted to upper cover centre, so that deflector and pickling tube side wall is interior
Side is in contact, and the angle between deflector and pickling tube side wall is α, and α is acute angle.
Further, the acid tank cover further includes stiffening plate, and wherein upper cover is arcuate structure, and the stiffening plate is arranged upper
The center of lid medial surface, and the both ends of stiffening plate are fixedly connected with deflector respectively.
Further, the explosionproof hole through its thickness is offered on the upper lid.
Further, the size of the angle α is 15 ~ 30 °.
Further, it is additionally provided with acid mist purifying device above the descaling bath, is disposed in the acid mist purifying device
Cooling zone, a neutral zone, secondary neutral zone and demister device.
Further, squeeze roller is additionally provided between the descaling bath and Rinsing Area.
Beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) present invention includes peel off system and pickling system, and steel band first passes through system removal surface scale of peeling off, then passes through
Overpickling system carries out pickling, further improves steel strip surface cleannes, the system of peeling off includes decorticator and dry brushing machine, decorticator
Including maxilla roller mechanism and lower jaw roller mechanism, maxilla roller mechanism and one end of lower jaw roller mechanism are hinged, lower jaw roller mechanism and upper
Intersect on jaw roller mechanism and is equipped with shelling roll；Steel band is passed through between the shelling roll of top-bottom cross, and shelling roll causes repeatedly steel band
Bending, so that the oxide skin on its surface is largely peeled off or be shelled pine；Decorticator rear is additionally provided with dry brushing machine, and dry brushing machine includes upper
Parallelly distribute on above and below brush roll, lower brush roll, rotating disk body, first hydraulic cylinder and second hydraulic cylinder, upper brush roll and lower brush roll, upper brush roll
It is separately fixed on two rotating disk bodies with the both ends of lower brush roll, first hydraulic cylinder and second hydraulic cylinder are hinged on one of them turn
The two sides of Moving plate body, for steel band after shelling roll is peeled off, surface still has an oxide skin residual fine crushing, and upper brush roll and lower brush roll can be with
Brush is carried out to steel strip surface and sweeps grinding, remaining oxide skin is further removed, reduces the use of pickling solution in subsequent pickling process
Amount, to reduce production cost.
(2) present invention is provided with deflector on upper lid, and deflector is tilted to upper cover centre, and acid tank cover is placed
When above pickling tube, inner wall is located in water sealed tank, and deflector is in contact on the inside of pickling tube side wall just, i.e., by pickling
Obstructed completely between pond side wall and water sealed tank, after acid mist liquefaction when flowing back along upper cover, can because the blocking of deflector and can not
Into water sealed tank, so that the smooth surface along deflector all flows back into pickling tube, the expansion of pickling solution is further avoided
It dissipates and wastes.
Detailed description of the invention
Fig. 1 is the pickling system structural schematic diagram in the present invention；
Fig. 2 is the pickling slot structure schematic diagram in the present invention.
Label declaration in schematic diagram: 1, guide roller；2, support roller；3, pressure roller I；4, acid tank cover；5, descaling bath；6, pressure roller
Ⅱ；7, pressure roller III；8, Rinsing Area；9, drying air knife；401, inner wall；402, outer wall；403, upper cover；404, deflector；405, add
Strong plate；501, pickling tube；502, water sealed tank；503, pickling tube side wall；504, side wall is sealed.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail with reference to the accompanying drawings and examples.
Embodiment 1
As depicted in figs. 1 and 2, a kind of steel strip surface pretreatment system of the present embodiment, including peel off system and pickling system
System, wherein the system of peeling off includes the decorticator set gradually, dry brushing machine, transfer roller and storage disk, decorticator includes maxilla roller machine
Structure and lower jaw roller mechanism, maxilla roller mechanism and one end of lower jaw roller mechanism are hinged, and lower jaw roller mechanism and maxilla roller mechanism are submitted
Fork is equipped with shelling roll；Steel band is passed through between the shelling roll of top-bottom cross, and shelling roll causes alternating bending to steel band, thus by it
Pine is largely peeled off or shell to the oxide skin on surface.
Decorticator rear is additionally provided with dry brushing machine, and dry brushing machine includes upper brush roll, lower brush roll, rotating disk body, first hydraulic cylinder
And second hydraulic cylinder, upper brush roll and lower brush roll parallelly distribute on up and down, the both ends of upper brush roll and lower brush roll are separately fixed at two and turn
On Moving plate body, first hydraulic cylinder and second hydraulic cylinder are hinged on the two sides of one of rotating disk body；Steel band is peeled off through decorticator
Afterwards, surface still has oxide skin residual fine crushing, which is difficult to remove by shelling roll, upper brush roll and lower brush roll
Roll surface then more fine brush can be carried out to steel strip surface and sweep grinding, further remove remaining oxide skin, avoid steel band
It brings oxide skin into pickling system together, can effectively reduce the usage amount of pickling solution in subsequent pickling process, to reduce production
Cost.It is worth noting that the first hydraulic cylinder and second hydraulic cylinder that are arranged in dry brushing machine can drive rotating disk body to rotate, i.e.,
Brush roll and lower brush roll are with the whole deflection of rotating disk body progress in drive, so that the vertical interval between upper brush roll and lower brush roll becomes
It is small, to avoid the defect that can not touch steel band due to brush roll surface abrasion, effectively increase brush roll and lower brush roll
Service life.
Transfer roller includes two pressure rollers of upper and lower parallelly distribute on, and steel band is introduced into storage after being pierced by between two pressure rollers
Disk；Steel band enters pickling system after being pierced by from storage disk, and the design of the storage disk is very important, and stores first storage unit in disk
Steel band is sent into pickling system again by steel splitting band, can when needing to carry out the welding replacement between different coil bands in the system of peeling off
The long period can be occupied, storing the steel band in disk can continue to export to pickling system at this time, will not influence pickling system just
Normal production efficiency.
Pickling system include the guide roller 1 set gradually from left to right, support roller 2, pressure roller I 3, descaling bath 5, pressure roller II 6,
Rinsing Area 8, pressure roller III 7 and drying air knife 9, steel band are passed through between the up-down rollers of guide roller 1, are effectively prevented steel band and are traveled across
Occur moving up and down phenomenon in journey, it can be further to the height of steel band with the direction of travel of stabilized steel band and position, support roller 2
It is adjusted；The pressure roller I 3 and pressure roller II 6 are separately positioned on the entrance and exit position of descaling bath 5, pressure roller I 3 and pressure roller II 6
Steel band is pressed into the pickling solution in descaling bath 5, so that steel band is acid washed liquid always in continuous forward movement and soaks completely
Bubble realizes acid cleaning process；Pressure roller III 7 is arranged above Rinsing Area 8, and steel band is pressed into the clear water in Rinsing Area 8 by pressure roller III 7,
So that steel band surface in continuous forward movement is impregnated by clear water always, to carry out to the remaining pickling solution of steel strip surface
Cleaning, the exit of Rinsing Area 8 is also disposed with squeeze roller and drying air knife 9, first extracts the remaining moisture of steel strip surface
It is purged again, further removes surface acid washing lotion；Pickling solution is brought into Rinsing Area 8 to reduce steel band, the outlet of descaling bath 5
Place is also equipped with squeeze roller and blow-dry device.
For the pickling effect for optimizing steel band, the steel band that surface quality is higher, more bright is obtained, inventor is to the acid used
Washing lotion is also synchronized and is optimized, the present invention used in pickling solution consist of the following compositions: hydrochloric acid, mass percent be 10 ~
20%；Hydrofluoric acid, mass percent are 5 ~ 8%；Iron chloride, mass percent are 6 ~ 10%；Sldium lauryl sulfate, mass percent
It is 0.5 ~ 1.5%；Calgon, mass percent are 0.1 ~ 0.8%, remaining is water.Specifically in the present embodiment, hydrochloric acid quality
Percentage is 10%, and hydrofluoric acid mass percent is 5%, and iron chloride mass percent is 6%, sldium lauryl sulfate mass percent
It is 0.5%, calgon mass percent is 0.1%；Sldium lauryl sulfate can effectively increase the activity of pickling solution, promote with
The oxide skin of steel strip surface occurs hair and answers, and accelerates pickling speed, improves pickling efficiency；Calgon, which helps to remove, to be rested on
Greasy dirt, oxidation and the unoxidized surface impurity of steel strip surface, improve cleaning, the glossiness of steel strip surface, while in pickling solution
The chloride ion of introducing helps to slow down the fast reaction of steel band and pickling solution, avoids overpickling that steel strip substrate is caused to occur rotten
Erosion, and effectively inhibit the generation of acid mist, the service life of pickling solution can be extended.
More than two pickling tubes 501 is provided in descaling bath 5, the lower part of adjacent pickling tube 501 is connected, and steel band is
It is to be pierced by pickling tube 501, sealing structure is provided on the outside of pickling tube side wall 503, including is solid with 503 phase of pickling tube side wall
Sealing side wall 504 even, sealing the groove formed between side wall 504 and pickling tube side wall 503 is water sealed tank 502, in the water seal
501 inside of pickling tube is fully sealed with the external world for injected clear water in slot 502, the clear water in water sealed tank 502, can effectively prevent acid
Pickling solution inside wash pool 501, to external diffusion, avoids pollution of the pickling solution pair with external environment due to by thermal evaporation；Each acid
It is stamped acid tank cover 4 in 501 top of wash pool.
Acid tank cover 4 includes inner wall 401, outer wall 402, upper cover 403 and deflector 404, and inner wall 401 is located at 403 lower section of upper cover,
And it is connected in the surrounding position of upper cover 403, inner wall 401 and upper cover 403 form a hollow cavity, in order to reduce pickling to the greatest extent
The height of heat diffusion in pond 501, the small volume of the hollow cavity, upper cover 403 is lower；Inner wall 401 is placed on water seal
In slot 502；The outside of inner wall 401 is arranged in outer wall 402, and is in contact with the upper surface of sealing side wall 504；Upper cover 403 it is interior
Side is also fixed with deflector 404 along surrounding, and deflector 404 is located at the inside of inner wall 401, and deflector 404 is into upper cover 403
The inclination of center portion position so that deflector 404 is in contact with the inside of pickling tube side wall 503, the design of the deflector 404 be in order into
One step prevents the leakage of pickling solution and evaporation from wasting.
When pickling pickling solution because temperature influence will form acid mist, acid mist is gathered and can be liquefied again below upper cover 403, along
The medial surface of upper cover 403 flows back into pickling tube 501, and upper cover 403 is arcuate structure, is more advantageous to the reflux of pickling solution；But skill
Art personnel have found that the part pickling solution after liquefaction can finally flow back into water sealed tank 502 along upper cover 403 during long-term production
In, gradually the clear water in water sealed tank 502 is acidified, the wasting of resources of pickling solution is also resulted in, improves production cost；To avoid
This phenomenon, technical staff are creatively added to the design of deflector 404, which is arranged in the inside of inner wall 401, and
Deflector 404 is tilted to 403 centre of upper cover, and when acid tank cover 4 is placed on 501 top of pickling tube, inner wall 401 is located at water seal
In slot 502, and deflector 404 is in contact with the inside of pickling tube side wall 503 just, i.e., by pickling tube side wall 503 and water sealed tank
It is obstructed completely between 502, when flowing back after acid mist liquefaction along upper cover 403, water can be cannot be introduced into because of the blocking of deflector 404
Sealing groove 502, so that the smooth surface along deflector 404 all flows back into pickling tube 501, avoid the diffusion of pickling solution with
Waste.Angle between the deflector 404 and pickling tube side wall 503 is that α (is specifically that deflector 404 and longitudinal direction are vertical in Fig. 2
Angle between line is α, and the longitudinal direction vertical line is parallel with pickling tube side wall 503), the effect that the size of α flows back for pickling solution
Fruit tool has a certain impact, if α is excessive, will lead to it is excessive by resistance and speed is excessively slow in pickling solution reflux, if α is too small and unfavorable
In the cooperation of entire acid tank cover 4 and pickling tube 501, lead to cover being limited with the movement opened；Technical staff is by continuous real
It tests and gropes, finally found that when α is 15 ~ 30 ° most useful for production and application, neither influence the back-flow velocity of pickling solution, be also conducive to whole
The cooperation of a acid tank cover 4 and pickling tube 501, specifically α is 15 ° in the present embodiment.
For the structural strength for reinforcing acid tank cover 4, in the center of 403 medial surface of the upper cover setting stiffening plate 405, and add
The both ends of strong plate 405 are fixedly connected with deflector 404 respectively.The explosionproof hole through its thickness is offered in upper cover 403, steel band is in acid
A small amount of hydrogen may be displaced because there is chemical reaction during washing, hydrogen is assembled in pickling tube 501 excessively to be then easy to lead
Cause safety accident, in order to improve production security, technical staff has opened up explosionproof hole in upper cover 403, the explosion-proof pore size compared with
It is small, the hydrogen of generation can be discharged at any time, and not will lead to a lot of leakage of acid mist.
It is additionally provided with acid mist purifying device above descaling bath 5, cooling zone, primary neutralization are disposed in acid mist purifying device
Area, secondary neutral zone and demister device, the present invention in be provided with two groups of acid mist purifying devices altogether, respectively in the entrance of descaling bath 5
And outlet port, the acid mist of entrance first pass around cooling zone and liquefy, then pass through a neutral zone and secondary neutral zone respectively
Acid-base neutralization is carried out, is finally filtered by demister, clean gas is discharged.
Embodiment 2
With embodiment 1, except that α size is 20 ° in the present embodiment, hydrochloric acid quality in the pickling solution in the present embodiment
Percentage is 20%, and hydrofluoric acid mass percent is 8%, and iron chloride mass percent is 10%, sldium lauryl sulfate mass percent
It is 1.5%, calgon mass percent is 0.8%, remaining is water.
Embodiment 3
With embodiment 1, except that α size is 30 ° in the present embodiment, hydrochloric acid quality in the pickling solution in the present embodiment
Percentage is 15%, and hydrofluoric acid mass percent is 7%, and iron chloride mass percent is 8%, sldium lauryl sulfate mass percent
It is 1.2%, calgon mass percent is 0.5%, remaining is water.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (7)
1. a kind of steel strip surface pretreatment system, it is characterised in that: including the system of peeling off and pickling system, the system packet of peeling off
The decorticator set gradually, dry brushing machine, transfer roller and storage disk are included, the decorticator includes maxilla roller mechanism and lower jaw roller machine
Structure, maxilla roller mechanism and one end of lower jaw roller mechanism are hinged, and intersect on lower jaw roller mechanism and maxilla roller mechanism and are equipped with shelling roll；
The dry brushing machine includes upper brush roll, lower brush roll, rotating disk body, first hydraulic cylinder and second hydraulic cylinder, upper brush roll and lower brush
The both ends of parallelly distribute on above and below roller, upper brush roll and lower brush roll are separately fixed on two rotating disk bodies, first hydraulic cylinder and second
Hydraulic cylinder is hinged on the two sides of one of rotating disk body；Transfer roller includes two pressure rollers of upper and lower parallelly distribute on, and steel band is from two
Storage disk is introduced into after being pierced by between a pressure roller；Steel band enters pickling system after being pierced by from storage disk；
The pickling system include the guide roller (1) set gradually from left to right, support roller (2), pressure roller I (3), descaling bath (5),
Pressure roller II (6), Rinsing Area (8), pressure roller III (7) and drying air knife (9), the pressure roller I (3) and pressure roller II (6) are separately positioned on
The entrance and exit position of descaling bath (5), above Rinsing Area (8), the exit of Rinsing Area (8) is also set for pressure roller III (7) setting
It is equipped with drying air knife (9)；
The descaling bath (5) includes more than two pickling tubes (501), and the lower part of adjacent pickling tube (501) is connected, in pickling
It is provided with sealing structure on the outside of pond side wall (503), it is described including the sealing side wall (504) being fixedly connected with pickling tube side wall (503)
The groove formed between sealing side wall (504) and pickling tube side wall (503) is water sealed tank (5o2)；Above each pickling tube (501)
It is stamped acid tank cover (4).
2. a kind of steel strip surface pretreatment system according to claim 1, it is characterised in that: the acid tank cover (4) includes
Inner wall (401), outer wall (402), upper cover (403) and deflector (404), inner wall (401) is located at below upper cover (403), and is connected
In the surrounding position of upper cover (403), inner wall (401) and upper cover (403) form a hollow cavity, and inner wall (401) is placed
In above-mentioned water sealed tank (502)；Outer wall (402) is arranged in the outside of inner wall (401), and the upper surface with sealing side wall (504)
It is in contact；The medial surface of upper cover (403) is also fixed with deflector (404) along surrounding, and the deflector (404) is located at inner wall
(401) inside, and deflector (404) is tilted to upper cover (403) centre, so that deflector (404) and pickling tube side wall
(503) it is in contact on the inside of, and the angle between deflector (404) and pickling tube side wall (503) is α, α is acute angle.
3. a kind of steel strip surface pretreatment system according to claim 2, it is characterised in that: the acid tank cover (4) is also wrapped
Stiffening plate (405) are included, wherein upper cover (403) is arcuate structure, and the stiffening plate (405) is arranged in upper cover (403) medial surface
Center, and the both ends of stiffening plate (405) are fixedly connected with deflector (404) respectively.
4. a kind of steel strip surface pretreatment system according to claim 2 or 3, it is characterised in that: on the upper cover (403)
Offer the explosionproof hole through its thickness.
5. a kind of steel strip surface pretreatment system according to claim 2, it is characterised in that: the size of the angle [alpha] is
15~30 °.
6. a kind of steel strip surface pretreatment system according to claim 1, it is characterised in that: above the descaling bath (5)
It is additionally provided with acid mist purifying device, cooling zone, a neutral zone, secondary neutral zone are disposed in the acid mist purifying device and is removed
Foam device device.
7. a kind of steel strip surface pretreatment system according to claim 1, it is characterised in that: the descaling bath (5) and clear
Sink is additionally provided with squeeze roller between (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510928612.1A CN105506663B (en) | 2015-12-15 | 2015-12-15 | A kind of steel strip surface pretreatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510928612.1A CN105506663B (en) | 2015-12-15 | 2015-12-15 | A kind of steel strip surface pretreatment system |
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| CN105506663A CN105506663A (en) | 2016-04-20 |
| CN105506663B true CN105506663B (en) | 2018-12-04 |
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| CN107447175A (en) * | 2017-09-15 | 2017-12-08 | 江苏大力神科技股份有限公司 | A kind of zinc-plated pre-treatment section acid dip pickle |
| CN113088984A (en) * | 2021-03-13 | 2021-07-09 | 安徽达顺不锈钢有限公司 | Pickling device for stainless steel band |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201538542U (en) * | 2009-10-14 | 2010-08-04 | 北京京杰锐思技术开发有限公司 | Sealing cover structure |
| CN102995040A (en) * | 2012-10-15 | 2013-03-27 | 天津市亿博制钢有限公司 | Method for heating acid washing solution |
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2015
- 2015-12-15 CN CN201510928612.1A patent/CN105506663B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201538542U (en) * | 2009-10-14 | 2010-08-04 | 北京京杰锐思技术开发有限公司 | Sealing cover structure |
| CN102995040A (en) * | 2012-10-15 | 2013-03-27 | 天津市亿博制钢有限公司 | Method for heating acid washing solution |
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