CN107002254A - Handle carbon steel band, the particularly method and system for pickling processes - Google Patents
Handle carbon steel band, the particularly method and system for pickling processes Download PDFInfo
- Publication number
- CN107002254A CN107002254A CN201580065566.5A CN201580065566A CN107002254A CN 107002254 A CN107002254 A CN 107002254A CN 201580065566 A CN201580065566 A CN 201580065566A CN 107002254 A CN107002254 A CN 107002254A
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- China
- Prior art keywords
- steel band
- treating stations
- another
- section
- treatment liquid
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
-
- 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
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
-
- 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
-
- 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
- C23G3/024—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by a combination of dipping and spraying
Abstract
The present invention relates to the method for handling steel band by treatment liquid in treating stations, the treating stations at least include spray section, immerse section and the public collection device for the treatment liquid, wherein the steel band is made up of carbon steel and is the steel tape that substantial horizontal is orientated on both its vertical and horizontal directions, wherein the steel band has top surface and lower surface, wherein this method includes the steel band is continuously transported through into the treating stations in the transmission direction, the longitudinal direction of the direction of transfer parallel to the steel band, so cause in the first step, when in the spray section that the steel band is in the treating stations, the treatment liquid is sprayed onto the top surface of the steel band in the lower surface with the steel band, in the second step, when in the immersion section that the steel band is in the treating stations, the steel band is immersed in the treatment liquid, wherein when handling the steel band, the treatment liquid is continuously pumped out the public collection device and pumped by both the spray section and the immersion section of the treating stations, spray wherein in the treatment liquid to top surface and the lower surface of the steel band is provided using nozzle.
Description
Technical field
It is used in treating stations handle steel band by treatment liquid the present invention relates to one kind, particularly for pickling processes steel
The method of band, the treating stations include process tank.
In addition, being used in treating stations handle steel band by treatment liquid the present invention relates to one kind, particularly for pickling
The system for handling steel band, the treating stations include process tank.
Background technology
The steel band for needing the method according to the invention and handling in the system of the present invention is carbon steel.
In acid cleaning process, metal surface goes the removal of impurity all by using the treatment liquid or pickle liquor for usually containing strong acid
Such as it is usually corrosion or oxide skin to be handled.
These impurity can occur during METHOD IN METAL FORMING PROCESSES (specifically roll and/or be heat-treated).In metal tape
In hot rolled process, the main oxide scale layer being made up of different metal oxides is formed.Oxide scale layer needs further adding
Removed before work steel band.This is generally carried out in acid cleaning process, wherein the oxide scale layer is dissolved in acid, then by rinsing
Section removes Acidwash solution completely.Hot rolled strip finishing line is continued to pass through in steel band and passes over the roller-way of steel band cooling
And also formed so-called " secondary oxidative skin " when the wherein band winding is into the coil winding machine of coil to a certain extent.According to
Material grade, on the final thickness of hot-rolled strip and in mill speed, both the thickness and its chemical composition of oxide skin are
It can change.
Oxide skin is quite similar to corrosion in chemistry in itself, is by arranging the iron and oxygen that are combined together with different molecular
Constitute.As corrosion, oxide skin typical case is developed at product made from steel surface, and metal surface is exposed to air in the product made from steel
In.
In order to eliminate this oxide skin, most common method is one typically between 50 DEG C with 95 DEG C now
Determine to use the pickling line with one or more acid baths at temperature, typically using multiple pickling tanks in a row for usually containing hydrochloric acid
Or acid treatment plant.Cumulatively or alternately, metal surface is carried out using other strong acid removing descale or cleaning, such as salt
Acid, sulfuric acid etc. may be used as the mordant (or treatment liquid) of the pickling for such as ferrous metal.
Steel band is pulled (or push or pull on and promote) with a certain speed (for example, up to a few meter per seconds) by pickling line,
Particularly process tank (or pickling tank), is then typically rinsed with water, and is dried, and is usually air-dried.Steel band pull and/or
During being forced through pickling line, oxide scale layer is dissolved in acid.
The sour concentration of itself is consumed in pickling operation process, so that need continuously to add fresh acid.However,
Substantial amounts of spent acid is not only harmful but also generally also costly to environment.It is therefore desirable to reduce the given metal surface institute of processing
The sour amount that needs or regenerating spent acid are to reuse.In addition, pickling operation should be executed to make it that the regeneration of spent acid can be with
Relatively simple and versus environmental compatible mode is realized.
Since in general pickling and be in particular that the development of this area, which has, to improve on pickling after band pickling starts
The target of the efficiency of time, chemicals and energy expenditure and surface quality.When starting, pickling line uses H2SO4Operation.With
Afterwards, HCl replaces H due to having shorter pickling time, more low consumption and overall acid regeneration possibility2SO4.In acid cleaning process process
Middle consumption pickling acid.The acid dissolves oxide skin and forms metal salt.H2SO4Primarily form what can be removed from pickle
FeSO4And it must discard and must then use fresh H2SO4Instead of.On the contrary, HCl is main during acid cleaning process
Form FeCl2With a small amount of FeCl3.Both of which using fluid bed or can spray roaster again in the reaction of so-called pyrohydrolysis
Raw equipment is converted back into HCl, so as to realize the complete recovery of useless pickling acid.HCl is HCl to base as another advantage of pickle
Down payment accessory, which has, compares H2SO4The fact that therefore lower corrosivity simultaneously reduce the risk of over-pickling.
In addition to the sour type used during acid cleaning process, other factors also influence pickling efficiency.For example, sour
Washing the higher temperature of acid reduces the time required for complete scale removal layer.Therefore, the modern times of pickle are used as using HCl
Band pickling line operation at a temperature in the range of from about 80 DEG C to about 90 DEG C.Because the pickling in the Acidwash solution containing acid is
One medium and energy exchange between chemistry or electrochemical process, therefore pickling acid and belt surface is for pickling efficiency
High-importance.
Pickling line is designed to shallow tank turbulent flow equipment now, and it includes several continuous acid-washing tanks.Steel band is pulled or pushed away
It is dynamic to pass through process tank.Complete pickling section is arranged to series connection, i.e., fresh or regeneration acid is added to last place
Manage in tank (that is, according to the process tank of the most downstream of the moving direction of steel band), and then with band direction of transfer reverse flow
Dynamic mode is processed, to maximize the use of pickling acid.In the inlet and outlet of process tank, install squeeze roll with
Farthest pickling acid is removed from band as far as possible, to strengthen cascading effect.Deutsche Bundespatent disclosure content DE 40
31 234 describe this technology.
In process tank, pickling acid injects on the both sides of tank, so as to be produced between strip surface and pickling acid high rapid
Stream.
Then pickling acid spills into circulating tank from process tank, from the circulating tank, and pickling acid is re-injected into processing by pump
In tank.High turbulent flow reduces the thickness of the liquid boundary layer in strip surface, so that cause improved medium and energy exchange, and
Therefore the pickling time needed for reducing.
Acid washing method known to another is spray pickling, if wherein pickling acid is used above and below steel band
A dry nozzle is directly sprayed onto strip surface, refering to such as A1 of document DE 42 28 808.Then pickling acid, which is collected in, follows
In ring tank, from the circulating tank, pickling acid is pumped into nozzle and sprayed again in strip surface.Nozzle typically higher than
Run under the pressure of 1 bar.Due to spraying the high impact of the pickling acid in strip surface, pickling efficiency and pickling time therefore
Can further it improve.However, this technology is never commercially used in strip acid pickling line.The reality carried out for different steel grades
Test room test verified specifically when using Acidwash solution containing HCl, the pickling speed of spray pickling and shallow tank turbulent flow
Technology is compared to up to five times.However, other modes increase the dissolution velocity of base metal in the same manner or even.Therefore,
Acid cleaning process is difficult to control in terms of the excessive risk of metal tape over-pickling is made.For this corrosive reason of base metal
One of be FeCl3Formation in pickling acid.Produced and having that air is directly contacted for the nozzle in spray pickling technology
The fine drop on high surface.Air, is in particular that the oxygen included in atmosphere is dissolved in pickling acid and the oxygen together with HCl
Change FeCl2, so as to form FeCl3.Although HCl is non-oxidizing acid and therefore only slowly dissolves base metal,
FeCl3It is oxidant, therefore the rate of dissolution of increase base metal.In pure spray pickling technique, FeCl3Concentration can reach
60g/l and more than.Increased FeCl in pickling acid3Concentration another have the disadvantage for give up pickling acid regeneration technology shadow
Ring.Typically carry out regenerated pickling acid using pyrohydrolysis technique.In this process, FeCl2And FeCl3It is converted back into HCl and Fe2O3。
However, FeCl3With than FeCl2Much lower evaporating temperature and the evaporation in pyrohydrolysis reactor, so as to change into
Fe2O3When produce size and be less than 1 μm of very tiny Fe2O3Particle.These fine particles are difficult to remove from technology waste gas,
So as to cause high dust emission.
The content of the invention
Therefore, it is an object of the present invention to provide for the processing of improved steel band, the particularly method and system of pickling, so
So that fixed investment and maintenance cost are reduced, realize in an environment-friendlymanner manner with high-quality and relatively quickly processing and
Acid cleaning process.
It is an object of the present invention to be used in treating stations handle steel band by treatment liquid by one kind, particularly for acid
Wash the method for processing steel band to realize, the treating stations include the process tank with spray section and immersion section, and at this
Reason station includes the public collection device for treatment liquid,
Wherein steel band includes carbon steel and is the continuous steel that substantial horizontal is orientated on both its vertical and horizontal directions
Band,
Wherein steel band has top surface and lower surface,
Wherein this method includes steel band is continuously transported through into treating stations in the transmission direction, and the direction of transfer is parallel to steel
The longitudinal direction of band, so that
-- in the first step, when in the spray section that steel band is in treating stations, treatment liquid arrives steel band by spray
On top surface and in the lower surface of steel band,
-- in the second step, when in the immersion section that steel band is in treating stations, steel band is immersed in treatment liquid,
Wherein when handling steel band, treatment liquid is continuously pumped out public collection device and pumped by treating stations
Both section and immersion section are sprayed, wherein providing treatment liquid to the top surface and lower surface of steel band using nozzle
Spray.
According to the present invention, thus the advantageously possible maintenance for being to provide the relatively low installation cost of needs and reduction into
This treating stations.It is used for the technique of chemistry or electrochemical treatments carbon steel, the preferably surface of banding carbon steel the present invention relates to a kind of,
Wherein the material uses Acidwash solution in one or more process tanks, and preferably Acidwash solution containing HCl is handled, so as to
Remove the oxide scale layer previously formed in the hot rolled process of metal tape (steel band).This processing is needed to be used for obtain cold
It is processed further in roll process or the clean surface for direct commercial use.
According to one embodiment of present invention, compared with the steel band comprising carbon steel, it is also preferred that steel band is by carbon steel group
Into.
It is preferred according the present invention, that implementing to be used to change using the Acidwash solution for containing HCl as unique mordant
The technique on the surface of or electrochemical treatments carbon steel, the wherein advantage of spray pickling are by using at utmost.In addition, the technique
Should be controllable, so that the risk minimization of over-pickling, so that the industry that the technique can be commercially used
Realized in scale pickling line.
According to the present invention, specifically in view of FeCl in spent acid3Concentration, this spent acid of this technique, which has, make it that it can be with
The quality without other investment is handled in regeneration equipment.
The invention further relates to following possibility：Existing pickling line, in particular process tank are renovated, and with the effect of raising
Rate uses more effective pickling technology, while existing equipment is reused to reduce installation cost, because for example can be again
Use sour circulation loop etc..
According to the present invention, it is advantageously possible that, these demands can be by present invention realization, including the use of containing HCl
Acidwash solution as the acid cleaning process of unique pickling acid, wherein pending processing material (that is, steel band) passes through one or many
Individual process tank carries out level processing, and process tank (in the case of more than one process tank) is run as pickling series connection.
According to the present invention, (treating stations) each single treatment tank of process described above includes being arranged as using one
A spray pickling area and a dip pickling area for one unit of individual public circulation loop, i.e., have multiple blowbacks on demand
One public circulating tank (public collection device) on road.All pickling acids from dipping section and spray section are in public circulation
Collect and mix and pumped back above-described (process tanks for the treatment of stations) two acid-washing regions in tank (public collection device)
Section.In single pickling tank (process tank), it may be necessary to the leading below band between spray section and pickling section
Roller is by steel band preferably localization process tank.Typically, it is not necessary to squezzing roller unit, because it is typically mounted to two acid
Wash between section.Preferably, the first section of process tank is spray section, and the second section is dip pickling type, preferably
With high efficiency, such as shallow tank turbulent flow technology.
According to the present invention, steel band (in the process tank for the treatment of stations) is handled by treatment liquid, so that at place
Manage in both spray section and immersion section of tank and use identical treatment liquid.Advantageously, therefore with more cost effective side
Formula realizes that treating stations (having spray section and immersion both section) are possible, because same public collection device (and follow
At least a portion of loop system) it can be used for spray section and immerse both sections, pass through spraying zone for realizing so as to reduce
The cost of the possibility of both section and immersion section processing steel band.
According to the present invention, steel band include carbon steel and be at least at treating stations on both its vertical and horizontal directions base
The steel tape being horizontally oriented in sheet.This means steel band is mainly horizontal in the widthwise direction thereof, but allow vertical at it
It is sagging on to direction.Steel band can reach such as up to 0,5m by the height change for the treatment of stations in their longitudinal direction.It is preferred that
Ground, equally between treating stations or between multiple treating stations, the height change of steel band in their longitudinal direction is also included up to
0,5m.Generally, it is preferred according to the present invention that the height change of steel band in their longitudinal direction is included in whole complete place
In reason system between up to 0,5m, potentially (and typically) is included on the direction of transfer of steel band the complete processing system
Multiple treating stations one by one.
According to the present invention, when in the spray section that steel band is in treating stations, treatment liquid in the first step and is led to
Nozzle spray is crossed to the top surface of steel band and in the lower surface of steel band.Second step (not necessarily first step it
Afterwards, can also be before first step) in, when in the immersion section that steel band is in treating stations, steel band is immersed in processing
In liquid.In order to handle steel band, the treatment liquids for the treatment of stations be continuously pumped out (this treating stations) public collection device and
Both spray sections and immersion section that pumping passes through process tank, wherein top surface and lower surface of the treatment liquid to steel band
On spray provided using nozzle.
According to the present invention, two kinds of pickling technologies directly combine in a process tank (that is, in a treating stations), that is, exist
In two pickling sections physically identical is used (that is, in both spray section and immersion section of the treating stations considered)
Pickling acid (or identical treatment liquid), as described.So, in whole acid cleaning process, FeCl3Concentration can keep
Below critical level, so as to ensure consistent pickling result without the risk of over-pickling.In addition, the spent acid of this technique
It easily can regenerate without other investment to reach the discharge value of legal requirement in regeneration equipment, particularly in powder
In terms of dirt discharge.
According to the present invention, the efficiency of handling process (or acid cleaning process) is added.Test verified FeCl3The one of concentration
Fixed increase also reduces pickling time for dip pickling technique.Therefore, process according to the invention uses high efficiency spray pickling work
The advantage of skill, and because being used in conjunction with of pickling acid (that is, makes in both spray section and immersion section of same treating stations
Use identical treatment liquid) and therefore increased FeCl3Level, the efficiency of dip pickling technique is also improved.Certainly, exist
In the case of (typical) that more than one treating stations are used in pickling line or steel band pickler, it is not intended that all these
Identical treatment liquid is used in different treating stations.On the contrary, multiple treating stations (that is, each have include spray section with
Immerse the process tank of section) in the case of, use different treatment liquids generally for different treating stations；However, same
In treating stations/process tank, identical treatment liquid is used for two kinds of acid cleaning process (spray pickling and dip pickling).
Hence it is advantageous to which it is possible that the FeCl of rather high concentration can be avoided3Shortcoming, these shortcomings are typically in same processing
Stand in the case of coming combined spray pickling and dip pickling using different treatment liquids and occur.
According to the present invention, processing line or pickling line are designed in one way, and this mode causes advantageously possible
It is that treating stations or process tank can easily change existing process tank in the case where needing renovation (or trimming), follow simultaneously
Loop back path can be reused.This is mainly due to spray pickling technology and dip pickling technology (that is, sprays section and Dilvar zone
Section) combination in a process tank (that is, as a part for a process tank) the fact.
The design of the present invention also allows in not other (outside) circulating tank (or public collection device) (that is, at place
Reason tank outside or separated with process tank) in the case of operation process tank possibility.In this embodiment, process tank in itself,
Region specifically below spray section and it is used as circulating tank (or public collection for the region below dipping section when needing
Device), i.e., circulating tank (or public collection device) is realized in the way of being integrated with process tank.This usually exists for changing (trimming)
It is favourable not have the deep trouth process tank run in the case of circulation loop.In this case, it is only necessary to add pump loop, together
When circulating tank be combined (or integrate) in process tank.
According to a preferred embodiment of the present invention, spray section has effective spray of the longitudinal direction parallel to steel band
Length, so that steel band during first step top surface and lower surface when in effective spray length
Reception processing liquid, wherein there is immersion section the longitudinal direction parallel to steel band to be effectively immersed length, so that the
During two steps steel band positioned at be effectively immersed in length when its top surface and lower surface be immersed in treatment liquid
In, it is provided with wherein effectively spraying length and being effectively immersed length 30:70 to 70:Ratio between 30 and including them
Rate, particularly 50:50 ratio.
According to the present invention, therefore advantageously possible is neatly to be adapted for the technological parameter of pickling line after construction
It is suit best for expected operational purposes.By length (the given transmission for passing through pickling line in steel band for limiting immersion section
Under speed), it is limited to time of the treatment liquid in immersion section during effective processing steel band.By limiting spray section
Length (similarly under given transfer rate of the steel band by pickling line), limits the spray pickling with dip pickling time correlation
Maximum time.
According to a further advantageous embodiment of the invention, effectively spray length and therefore effectively spray length relative to having
The ratio of effect immersion length is changed by only starting the part in nozzle.
According to the present invention, therefore advantageously possible is even during the operation use of pickling line, that is, to pass through and close
A part in nozzle changes the spray pickling time.By selective actuation and/or closing nozzle sets, according to the present invention, have
Sharp ground using nozzle by only every in the operation use of pickling line it is possible that for example can also alternately change spray
The mode or intensity of acid pickling step, so that intensity of the spray pickling in spray section is relatively low.
According to a preferred embodiment of the present invention, direction of transfer of the spray section along steel band is located relative to immerse area
The upstream of section.According to the alternative preferred embodiment of the present invention, direction of transfer of the spray section along steel band is located at phase
Downstream for immersing section.
According to the present invention, therefore the advantageously possible possibility for being to provide different pickling line frameworks.For example, advantageously may be used
Energy is (in the case of using at least two treating stations) that there is provided two treating stations, so that spraying zone section is located at relative
In the upstream (that is, steel band first passes through spray section, then passes through immersion section) of immersion section：This causes following kind of acid
Wash order：Spray and dip pickling (use the first treatment liquid) in first (or upstream) treating stations, then second (or
Downstream) spray and dip pickling (using second processing liquid) in treating stations.Alternately, additionally advantageously likely (
In the case of using at least two treating stations) there is provided the first treating stations, so that and spraying zone section is located relative to immerse section
Downstream (that is, steel band first passes through immersion section, then pass through spray section), and provide second processing station, so that
Spraying zone section be located relative to immerse section (that is, steel band first passes through (second processing station) spray section, then wears for upstream
Cross (second processing station) dipping section)：This causes following kind of pickling order：Leaching in first (or upstream) treating stations
Stain and spray pickling (using the first treatment liquid), then the spray and dip pickling in second (or downstream) treating stations (make
Use second processing liquid).Certainly, these structure blocks of two treating stations can repeat or with other treating stations or treating stations
Configuration is combined.
According to a preferred embodiment of the present invention, this method includes using in addition to the treatment liquid in using treating stations
Another treatment liquid in another treating stations, another treating stations include having another spray section and another leaching
Enter another process tank of section, and another treating stations include another public collection for further treatment liquid
Device,
Wherein this method includes steel band is continuously transported through to another treating stations in the transmission direction, so that
-- in third step, when steel band is in another spray section of another treating stations, another processing
Liquid is sprayed onto the top surface of steel band in the lower surface with steel band,
-- in four steps, when steel band is in another immersion section of another treating stations, steel band is dipped into
In another treatment liquid,
Wherein when handling steel band, another treatment liquid is continuously pumped out another public collection device and pumped
By another spray section and another immersion both section of another treating stations, wherein by another treatment liquid to steel
Spray on the top surface and lower surface of band is provided using another nozzle, wherein third step and four steps be
Before first step and second step or after first step and second step.
According to the present invention, therefore advantageously possible is that at least two invention treating stations are combined in pickling line.Certainly,
May also and it be preferably according to the present invention, by the two invention treating stations and a conventional treatment station (that is, in process tank
Only there is spray section or only there is immersion section) or combine with multiple conventional treatment stations.In this framework of pickling line, two
Direction of transfer of the individual invention treating stations along steel band is directly positioned one by one, or is provided and one or more routines
The combination for the treatment of stations, so that treating stations (or first treating stations) are located relative to a routine according to the direction of transfer of steel band
The upstream for the treatment of stations (or relative to multiple conventional treatment stations), and at the downstream relative to this or these conventional treatment station
Position another treating stations (or second processing station) according to the present invention.
According to a further advantageous embodiment of the invention, treatment liquid and/or another treatment liquid are included
-- hydrochloric acid, its concentration range be from 150g/l and including 150g/l to 250g/l and including 250g/l, and
--FeCl3, its concentration range is from 10g/l and including 10g/l to 35g/l and including 35g/l, particularly concentration model
Enclose to be from 19g/l and including 19g/ from 15g/l and including 15g/l to 30g/l and including 30g/l or particularly concentration range
L to 26g/l and including 26g/l, and
--FeCl2+ ion, its concentration range is from 30g/l and including 30g/l to 300g/l and including 300g/l, especially
Be concentration range be from 30g/l and including 30g/l to 60g/l and including 60g/l or concentration range for from 130g/l and including
130g/l to 180g/l and including 180g/l or concentration range be from 230g/l and including 230g/l to 300g/l and including
300g/l。
According to the present invention, thus it is advantageously possible, and the acid cleaning process of assembled highly-effective rate retains relatively easily simultaneously
The possibility of pickling acid (treatment liquid) used in regeneration.
It is used in treating stations handle steel band by treatment liquid the invention further relates to one kind, particularly for pickling processes
The system of steel band, the system includes treating stations, and the wherein treating stations include the process tank with spray section, immersion section, and
And the treating stations include the public collection device for treatment liquid,
Wherein steel band includes carbon steel and is the continuous steel that substantial horizontal is orientated on both its vertical and horizontal directions
Band,
Wherein steel band has top surface and lower surface,
Wherein the system is configured as that steel band is continuously transported through into treating stations in the transmission direction, and the direction of transfer is parallel
In the longitudinal direction of steel band, so that
-- when in the spray section that steel band is in treating stations, treatment liquid is sprayed onto the top surface of steel band and steel
In the lower surface of band,
-- when in the immersion section that steel band is in treating stations, steel band is immersed in treatment liquid,
Wherein the system is configured so that treatment liquid is continuously pumped out public collection device and pumped by place
Both the spray section and immersion section at station are managed, wherein the system includes nozzle, so that treatment liquid is sprayed using nozzle
Onto the top surface and lower surface of steel band.
According to the present invention, thus the advantageously possible maintenance for being to provide the relatively low installation cost of needs and reduction into
This system (or treating stations).According to the present invention, it is advantageously possible that the advantage of combined spray pickling and dip pickling and
Make the risk minimization of over-pickling.It is further advantageous that specifically in view of FeCl in spent acid3Concentration, this system this
Spent acid has the quality that it is handled without other investment in regeneration equipment.
According to one embodiment of present invention, compared with the steel band comprising carbon steel, it is also preferred that steel band is by carbon steel group
Into.
According to a preferred embodiment of the present invention, especially with regard to the preferred embodiment of inventive system, section is sprayed
Effective spray length with the longitudinal direction parallel to steel band, so that the top surface and lower surface of steel band positioned at
Reception processing liquid when effectively in spray length, wherein immersion section is effectively immersed length with the longitudinal direction parallel to steel band
Degree, so that steel band positioned at be effectively immersed in length when its top surface and lower surface be immersed in treatment liquid, its
In effectively spray length and be effectively immersed length and be provided with 30:70 to 70:Ratio between 30 and including them, it is special
It is not 50:50 ratio.
According to the present invention, therefore advantageously possible is neatly to be adapted for the technological parameter of pickling line after construction
It is suit best for expected operational purposes.
According to a preferred embodiment of the present invention, especially with regard to the preferred embodiment of inventive system, section is sprayed
It is located relative to immerse the upstream of section along the direction of transfer of steel band.Alternatively it is preferable to carry out according to one of the present invention
Example, especially with regard to inventive system, direction of transfer of the spray section along steel band is located relative to immerse the downstream of section.
According to the present invention, therefore advantageously possible is neatly to be adapted for the technological parameter of pickling line after construction
It is suit best for expected operational purposes.
According to a preferred embodiment of the present invention, especially with regard to the preferred embodiment of inventive system, for spraying
The public collection device of the treatment liquid of both section and immersion section is the collection device separated with the process tank for the treatment of stations.
According to the present invention, therefore advantageously possible is to build process tank in very cost-effective mode, so that
The volume of particularly process tank is relatively small (and therefore using less treatment liquid).Treatment liquid be pumped through with
The separated public collection device (or circulating tank) of process tank.
According to a preferred embodiment of the present invention, especially with regard to the preferred embodiment of inventive system, for spraying
The public collection device of the treatment liquid of both section and immersion section is the collection device with the process tank integration for the treatment of stations, special
It is not to be integrated into so that the base section of process tank forms public collection device.
According to the present invention, therefore advantageously possible is to realize treating stations in very cost-effective mode, because being not required to
Will single public collection device (or circulating tank).
According to another preferred embodiment (embodiment related with system to this method), the length for the treatment of stations of the present invention
Degree is preferably 20m or smaller, preferably between 16m and 20m.Treating stations including spray section and immersion both sections are excellent
Selection of land is assembled using two critical pieces of process tank, so that the process tank is used after two critical pieces are assembled
Two critical pieces are integrally formed.
According to the present invention, therefore advantageously possible being to provide to form two critical pieces of process tank, so that every
Individual critical piece has 11,6m maximum length, i.e., two critical pieces have 11,6m or smaller length.Hence it is advantageous to
Likely transmit the two critical pieces of the process tank used according to inventive method in treating stations, so that this two
Individual critical piece need not be welded.Preferably, two critical pieces of process tank are slipped into each other.This causes the installation for the treatment of stations more
Rapidly, this is particularly advantageous in the case of the existing pickling line of trimming, because fault time can caused by trimming
With relatively reduced.In accordance with the present invention, it is preferred that a critical piece of process tank be embodied as the spray section for the treatment of stations and
Another critical piece of process tank is embodied as the intrusion section for the treatment of stations.
According to a preferred embodiment of the present invention, especially with regard to the preferred embodiment of inventive system, the system bag
Another treatment liquid in another treating stations in addition to the treatment liquid in treating stations is included, another treating stations include
Another process tank with another spray section and another immersion section, and another treating stations are another including being used for
A kind of another public collection device for the treatment of liquid,
Wherein the system is configured so that steel band continuously transports through another treating stations in the transmission direction, so makes
-- when steel band is in another spray section of another treating stations, another treatment liquid arrives steel by spray
On the top surface of band and in the lower surface of steel band,
-- when steel band is in another immersion section of another treating stations, steel band is immersed in another treatment fluid
In body,
Wherein the system is configured so that another treatment liquid is continuously pumped out another public collection device simultaneously
And pumping immerses both sections by another spray section of another treating stations with another, the wherein system is included in addition
Nozzle, so that another treatment liquid is sprayed on the top surface and lower surface of steel band using another nozzle.
According to the present invention, therefore advantageously possible is that at least two invention treating stations are combined in pickling line.Certainly,
May also and it be preferably according to the present invention, by the two invention treating stations and a conventional treatment station (that is, in process tank
Only there is spray section or only there is immersion section) or combine with multiple conventional treatment stations.
According to a preferred embodiment of the present invention, the system includes removing the treatment liquid in treating stations and another processing
The 3rd treatment liquid in the 3rd treating stations beyond another treatment liquid stood, the 3rd treating stations include having the 3rd
The 3rd process tank of section and the 3rd immersion section is sprayed, and the 3rd treating stations include the 3rd for the 3rd treatment liquid
Public collection device.
According to the present invention, therefore advantageously possible is that at least three invention treating stations are combined in pickling line.Certainly,
May also and it be preferably according to the present invention, by these three invention treating stations and a conventional treatment station (that is, in process tank
Only there is spray section or only there is immersion section) or combine with multiple conventional treatment stations.
According to a further advantageous embodiment of the invention, the system includes removing treatment liquid in treating stations, at another
Another treatment liquid in reason station and the 4th in the fourth process station beyond the 3rd treatment liquid in the 3rd treating stations
Treatment liquid, the fourth process station includes the fourth process tank with the 4th spray section and the 4th immersion section, and this
Four treating stations include the 4th public collection device for fourth process liquid.According to the present invention, according to other embodiment, according to
The combination of five treating stations of the present invention is also possible and preferred.
According to a further advantageous embodiment of the invention, treatment liquid and/or another treatment liquid and/or the 3rd processing
Liquid is included
-- hydrochloric acid, its concentration range be from 150g/l and including 150g/l to 250g/l and including 250g/l, and
--FeCl3, its concentration range is from 10g/l and including 10g/l to 35g/l and including 35g/l, particularly concentration model
Enclose to be from 19g/l and including 19g/ from 15g/l and including 15g/l to 30g/l and including 30g/l or particularly concentration range
L to 26g/l and including 26g/l, and
--FeCl2, its concentration range is from 30g/l and including 30g/l to 300g/l and including 300g/l, particularly concentration
Scope is for from 130g/l and including 130g/l from 30g/l and including 30g/l to 60g/l and including 60g/l or concentration range
It is from 230g/l and including 230g/l to 300g/l and including 300g/l to 180g/l and including 180g/l or concentration range.
According to the present invention, thus it is advantageously possible, and the acid cleaning process of assembled highly-effective rate retains relatively easily simultaneously
The possibility of pickling acid (treatment liquid) used in regeneration.
These and other characteristics, the feature and advantage of the present invention will become bright with reference to accompanying drawing according to described further below
Aobvious, accompanying drawing illustrates the principle of the present invention by way of example.The specification is provided merely for the purpose of citing, is not intended to limit this hair
Bright scope.Quoted below refers to accompanying drawing with reference to figure.
Brief description of the drawings
Fig. 1, which is schematically shown, includes the processing system at three different disposal stations, and each treating stations enter according to the present invention
Row configuration, i.e., with the process tank with both spray section and immersion section, so that public collection device and identical
Treatment liquid is used to handle steel band in both corresponding spray section and immersion section.
Fig. 2 schematically show with process tank and separated with process tank the first of the treating stations of public collection device
There is embodiment, the process tank it to spray section and its immersion section to use common process liquid handling steel band, the public place
Liquid is managed on the one hand between public collection device and in its inner loop, on the other hand between spray section and immersion section
And in its inner loop.
Fig. 3 schematically show with process tank and separated with process tank the second of the treating stations of public collection device
There is embodiment, the process tank it to spray section and its immersion section to use common process liquid handling steel band, the public place
Liquid is managed on the one hand between public collection device and in its inner loop, on the other hand between spray section and immersion section
And in its inner loop.
Embodiment
It will come that the present invention will be described relative to specific embodiment and with reference to some accompanying drawings, but the present invention is not limited
It is only limited by the claims in this.The accompanying drawing of description is schematical and is nonrestrictive.In the drawings, it is
The size of some key elements of the purpose of explanation may be exaggerated and be not to scale.
Indefinite article or definite article, such as " one/a kind of (a) ", " one/a kind of are used when referring to singular noun
(an) in the case of ", " being somebody's turn to do (the) ", unless stated otherwise, otherwise this includes the plural form of the noun.
In addition, term first, second, third and similar terms in the specification and in the claims is used for similar
Key element between make a distinction and not necessarily for describing a kind of consecutive order or time sequencing.It should be understood that so use
Term be in appropriate instances it is interchangeable, and invention described herein embodiment can with except illustrating herein or
Other orders outside displaying are operated.
Fig. 1 schematically shows the processing system including three different treating stations 3,31,32 as according to the present invention
Pickling line example.A kind of possible and preferred implementation of the pickling line for being used to handle steel band 1 represented in Fig. 1
In, all three treating stations 3,31,32 represent treatment in accordance with the present invention station, i.e., with spray section and immersion section two
The process tank of person, so that public collection device and identical treatment liquid are used in corresponding spray section and immersion section
Middle processing steel band.In this implementation or framework of pickling line, all three treating stations 3,31,32 are according to for by with reference to symbol
The first embodiment of the present invention represented in fig. 2 of the exemplary cases of numbers 3 treating stations represented realizes, or according to pin
The second embodiment of the present invention represented in figure 3 of the exemplary cases for the treatment of stations represented by reference symbol 3 is realized.
Alternately, the part in all three treating stations 3,31,32 is realized according to the first embodiment of the present invention (Fig. 2), and
And (Fig. 3) is realized another part according to the second embodiment of the present invention.In the context of the present invention, term ' treating stations ' and
' the first treating stations ' and ' another treating stations ' and ' second processing station ' are used with identical meaning, and purpose is only that and will located
Reason station is distinguished from each other.Typically, UNC typically (but not necessarily) is related to position of the treating stations along the direction of transfer of steel band
Put, the direction of transfer is represented by reference symbol 2.In the implementation represented in Fig. 1, treating stations (or first treating stations) 3
In the upstream of another treating stations (or second processing station) 31.Another treating stations (or second processing station) 31 is located at the 3rd processing
Stand 32 upstream.Treating stations (or first treating stations) 3 include process tank (or first process tank) 4 and public collection device (or the
One public collection device) 5.Another treating stations (or second processing station) 31 includes another process tank (or second processing tank) 41
With another public collection device (or second public collection device) 51.3rd treating stations 32 include the 3rd process tank 42 and the 3rd
Public collection device 52.(wherein all treating stations are all in accordance with this in the example implementations of the pickling line represented in Fig. 1
Invent to configure), each there is all three treating stations 3,31,32 spray section to be used as its corresponding process tank with immersion section
4th, 41,42 part, i.e. treating stations (or first treating stations) 3 has the spray using treatment liquid (or first treatment liquid)
Section (or first spray section) and immersion section (or first immersion section), another treating stations (or second processing station) 31 tool
There is another spray section (or second spray section) using another treatment liquid (or second processing liquid) (not in Fig. 1
It is middle to describe) and another immersion section (or second immersion section) (not describing in Fig. 1), and the 3rd treating stations 32 are with making
With the 3rd spray section (not describing in Fig. 1) and the 3rd immersion section (not describing in Fig. 1) of the 3rd treatment liquid.For
The exemplary cases for the treatment of stations 3 (the first treating stations 3), the first embodiment of the present invention and second embodiment are shown in figs. 2 and 3
Show to meaning property.
Fig. 2 is schematically shown with process tank 4 and the treating stations 3 of public collection device 5 that are separated with process tank 4
There is first embodiment, process tank 4 it to spray section 13 and its immersion section 14 to use common process liquid handling steel band 1,
The common process liquid on the one hand between public collection device 5 and in its inner loop, on the other hand spray section 13 with
Immerse between section 14 and in its inner loop.
Fig. 3 is schematically shown with process tank 4 and the treating stations 3 of public collection device 5 that are separated with process tank 4
There is second embodiment, process tank 4 it to spray section 13 and its immersion section 14 to use common process liquid handling steel band 1,
The common process liquid on the one hand between public collection device 5 and in its inner loop, on the other hand spray section 13 with
Immerse between section and in its inner loop.
Fig. 1, Fig. 2 and Fig. 3 combination show the invention handling process on the surface for chemistry or electrochemical treatments steel band 1
With system (or treating stations), steel band 1 is carbon steel band.The horizontal transmission first of steel band 1 is made by treating stations 3,31,32, wherein steel band 1
Handled with the treatment liquid for usually containing HCl of pickling acid form.Treating stations 3,31,32 (or its corresponding process tank 4,
41st, 42) at least one include according to the present invention spray pickling section (as being expressed as treating stations 3 in figs. 2 and 3
Spray section 13) and dip pickling section (the immersion section 14 as being expressed as treating stations 3 in figs. 2 and 3).Fig. 1 is shown
Example implementations as the presently preferred embodiments with three treating stations 3,31,32 (each with process tank), but place
The quantity at reason station (and process tank) is at least one and is not limited to three.
All treating stations 3,31,32 include public collection device respectively, and (that is, corresponding process tank 4,41,42 is connected to pair
The public collection device (or circulating tank) 5,51,52 answered), wherein public collection device 5,51,52 is embodied as represented in Fig. 2
Single tank shown in first embodiment is embodied as being incorporated into corresponding process tank 4,41,42 as shown in Figure 3
Public collection device 5,51,52 (that is, being potentially different for each treating stations 3,31,32).
In Fig. 1 in shown exemplary embodiment, public collection device (or circulating tank) 5,51,52 is transported as series connection
OK, i.e., fresh or regeneration acid (that is, treatment liquid) addition (refer to reference symbol 54) to last public collection device (or most
Circulating tank afterwards) in 52, i.e., it is related to the treating stations 32 of the most downstream of the direction of transfer 2 according to steel band 1, and therefore with band
The opposite side of material direction of transfer 2 is transferred up to other public collection devices (or circulating tank).Therefore, the level of free acid is
It is highest in three treatment liquids (being circulated in the 3rd treating stations 32), the level of free acid is in another treatment liquid (second
Treatment liquid) it is medium in (in another (second) treating stations 31 circulate), and in treatment liquid (the first treatment fluid
Body) it is minimum in (in (first) treating stations 3 circulate).Finally, from (first) public collection device, (or (first) follows spent acid
Ring tank) (reference symbol 55) is removed in 5.In three treating stations 3,31,32 (in Fig. 1 in shown example implementations)
After progress pickling processes, if it is desired, steel band 1 is processed further in the section 6 including rinsing section and drier.
The first embodiment of public collection device (or circulating tank) 5 according to Fig. 2, treating stations 3 include having list
The process tank 4 of only public collection device 5 (or individually circulating tank 5).At inlet and outlet section, install squeezing roll 12 with
Pickling acid is removed from band, and the guiding steel band 1 in process tank 4.First tank in process tank is acid cleaning process,
During as treating stations 3 in Fig. 1, using only the squeezing roll 12 in inlet section.Treating stations (or process tank) afterwards, as in Fig. 1
Treating stations 31,32 do not need this squeezing roll 12.In Fig. 2 exemplary expression (i.e., it is not necessary to), process tank 4
Part I (according to the direction of transfer of steel band 1) is spray pickling section 13 or spray section 13, followed by dip pickling section
14 or immersion section 14.In spray pickling section 13, nozzle 15 is placed in above and below the surface of steel band 1.Pickling acid
(or treatment liquid) is pumped into spray pickling section 13 and dipping acid by pump 17,18 from circulating tank 5 (or public collection device 5)
Wash both sections 14.In one or more pump loops, heat exchanger 19 is installed pickling acid (treatment liquid) is heated into institute
The temperature needed.It is possible if desired to which deflector roll 20 is arranged between spray pickling section 13 and dip pickling section 14 to subtract
Band is slow less.
The second embodiment of public collection device (or circulating tank) 5 according to Fig. 3, treating stations 3 are included with whole
The process tank 4 of the public collection device 5 closed.The miscellaneous part for the treatment of stations 3 is similar with Fig. 2 description.
Although being shown specifically and having described the specific embodiment of the present invention to illustrate invention principle, it should manage
Solution, the present invention can otherwise embody in the case where not departing from these principles.
For example, it is 255m/min that the Breadth Maximum that pickling line is configured as steel band 1, which is 1890mm, the maximal rate of steel band 1,.
In addition exemplarily, nozzle 15 arrives steel band 1 (both lower surfaces 1 " of 1 top surface 1 ' and steel band 1 from nozzle to steel band)
Distance be 200mm or about 200mm.In addition, the mutual distance of horizontal direction top nozzle 15 in steel band 1 corresponds to 200mm
Or about 200mm.In addition, the mutual distance of longitudinal direction top nozzle 15 in steel band 1 corresponds to 500mm or about 500mm.Place
Reason liquid is preferably pumped from having in 1 bar and including 1 bar to 3 bars and includes the nozzle of the pressure between 3 bars, and each
The amount of the treatment liquid of nozzle is preferably 12l/min or about 12l/min.For example, the total quantity of the nozzle of each treating stations
Corresponding to 306 or about 306, and the amount of the treatment liquid of the pumping of each treating stations corresponds to 220m3/h or about
220m3/h。
Testing experiment is carried out in pilot plant.The pilot plant is made up of two treating stations (each with process tank),
The two treating stations are arranged as described in this disclosure, are the first spray pickling section then dipping acid in each process tank
Wash section.Process tank is designed such that the length of two sections is about the same.Used pickling acid is HCl, and it is at two
There is about 200g/l total acid concentration in tank.Handled material is different IF steel grade (nothings during test run
Interstitial atom steel), the steel grade belongs to the steel tier group that pickling is more difficult to mainly due to its high coiling temperature again.Test result is
Compared with the verified conventional acid cleaning process with shallow tank turbulent flow technology using dip pickling, pickling time can reduce 40%-
45%, while FeCl3 concentration is consistently less than 30g/l, for acid regeneration process, this is considered as not serious.All surveys
Examination material shows consistent pickling result without the phenomenon of any over-pickling.
In using another of identical pilot plant test, located using pickling acid (treatment liquid) temperature of reduction
Manage material.As a result displays temperature can be reduced to 70 DEG C from 90 DEG C, while still reaching and the routine using shallow tank turbulent flow technology
Dip pickling technique identical pickling time.This result keeps the energy required for technological temperature to subtract equivalent in acid cleaning process
Few 20%.
As system operation example and especially with example of the treatment liquid as series connection, in pickling line
The example of concentration value is provided using the example of three treating stations：
In the first treating stations 3, the scope of HCl concentration for 205g/l and including 205g/l to 220g/l and including
Between 220g/l, the scope of FeCl2 concentration for 260g/l and including 260g/l to 278g/l and including between 278g/l,
The scope of FeCl3 concentration is 22g/l and including 22g/l to 26g/l and including between 26g/l.The model of the temperature for the treatment of liquid
Enclose for 88 DEG C and including 88 DEG C to 91 DEG C and including between 91 DEG C.In second processing station 31, the scope of HCl concentration is
201g/l and including 201g/l to 211g/l and including between 211g/l, the scope of FeCl2 concentration for 140g/l and including
140g/l is to 146g/l and including between 146g/l, the scope of FeCl3 concentration and for 21g/l and including 21g/l to 26g/l wrap
Include between 26g/l.The scope of the temperature for the treatment of liquid is for 88 DEG C and including 88 DEG C to 91 DEG C and including between 91 DEG C.At the 3rd
In reason station, the scope of HCl concentration is for 193g/l and including 193g/l to 206g/l and including between 206g/l, FeCl2's is dense
The scope of degree is 43g/l and including 43g/l to 47g/l and including between 47g/l, the scope of FeCl3 concentration is 19g/l and wrapped
19g/l is included to 22g/l and including between 22g/l.The scope of the temperature for the treatment of liquid is 88 DEG C and to 91 DEG C and wrapped including 88 DEG C
Include between 91 DEG C.
Reference symbol
1 steel band
The direction of transfer of 2 steel bands
3 treating stations
4 (treating stations) process tanks
5 (treating stations) public collection devices
12 squeezing rolls
13 (treating stations) spray sections
14 (treating stations) immersion sections
15 (treating stations) nozzles
17th, 18 pump
19 heat exchangers
20 deflector rolls
31 another treating stations
41 (another treating stations) another process tank
Another public collection device of 51 (another treating stations)
32 the 3rd treating stations
42 (the 3rd treating stations) the 3rd process tanks
52 (the 3rd treating stations) the 3rd public collection devices
The charging of 54 new treatment liquids
The removal for the treatment of liquid used in 55
Claims (14)
1. one kind is used in treating stations (3) handle steel band (1) by treatment liquid, particularly for the pickling processes steel band
(1) method, the treating stations (3) include the process tank (4) with spray section (13) and immersion section (14), and the processing
(3) are stood including being used for the public collection device (16) of the treatment liquid,
Wherein the steel band (1) is made up of carbon steel and is the continuous of the substantial horizontal orientation on both its vertical and horizontal directions
Steel band (1),
Wherein the steel band (1) has top surface (1 ') and lower surface (1 "),
Wherein this method is included on direction of transfer (2) continuously transports through the treating stations (3), the sender by the steel band (1)
To the longitudinal direction parallel to the steel band (1), so that
-- in the first step, when in the spray section (13) that the steel band (1) is in the treating stations (3), the treatment liquid
Arrived by spray on the top surface (1 ') of the steel band (1) and in the lower surface (1 ") of the steel band (1),
-- in the second step, when in the immersion section (14) that the steel band (1) is in the treating stations (3), steel band (1) quilt
It is immersed in the treatment liquid, wherein when handling steel band (1), the treatment liquid is continuously pumped out the public collection device
(16) and pump by both the spray sections (13) of the treating stations (3) and the immersion section (14), the wherein treatment fluid
Spray on body to top surface and the lower surface (1 ', 1 ") of the steel band (1) is provided using nozzle (15).
2. according to the method described in claim 1, wherein the spray section (13) includes the longitudinal direction side parallel to the steel band (1)
To effective spray length, so that the top surface of the steel band (1) and the lower surface during the first step
(1 ', 1 ") receives the treatment liquid when in effective spray length, and wherein the immersion section (14) is included parallel to this
The longitudinal direction of steel band (1) is effectively immersed length, so that during the second step steel band (1) is positioned at this
Its top surface and lower surface (1 ', 1 ") are immersed in the treatment liquid when being effectively immersed in length, wherein effective spray
Drench length and this is effectively immersed length and is provided with 30:70 and including 30:70 to 70:30 and including 70:Between 30
Ratio, particularly 50:50 ratio.
3. the method according to one of preceding claims, wherein effective spray length and therefore effective spray length phase
Being effectively immersed the ratio of length for this is changed by only starting the part in these nozzles (15).
4. the method according to one of preceding claims, wherein along the direction of transfer of the steel band (1), the spray section
(14) upstream or downstream of the immersion section (15) are located relative to.
5. the method according to one of preceding claims, wherein this method include remove use the treating stations (3) in this at
Another treatment liquid used beyond liquid in another treating stations (31) is managed, another treating stations (31) include having separately
Another process tank (41) of one spray section and another immersion section, and another treating stations (31) are including being used for
Another another public collection device (51) of the treatment liquid,
Wherein this method is included on the direction of transfer continuously transports through another treating stations (31) by the steel band (1), this
Sample causes
--, should when the steel band (1) is in another spray section of another treating stations (31) in third step
Another treatment liquid by spray to the steel band (1) the top surface (1 ') on and the steel band (1) the lower surface (1 ")
On,
--, should when the steel band (1) is in another immersion section of another treating stations (31) in four steps
Steel band (1) is immersed in another treatment liquid,
Wherein when handling steel band (1), another treatment liquid is continuously pumped out another public collection device
(51) and this another both spray section and another immersion section by another treating stations (31) are pumped, its
In spray in another treatment liquid to top surface and the lower surface (1 ', 1 ") of the steel band (1) using in addition
Nozzle provide, wherein the third step and the four steps be before the first step and the second step or this
After one step and the second step.
6. the method according to one of preceding claims, the wherein treatment liquid and/or another treatment liquid are included
-- hydrochloric acid, its concentration range be from 150g/l and including 150g/l to 250g/l and including 250g/l, and
--FeCl3, its concentration range is to be from 10g/l and including 10g/l to 35g/l and including 35g/l, particularly concentration range
From 15g/l and including 15g/l to 30g/l and including 30g/l or particularly concentration range be from 19g/l and including 19g/l to
26g/l and including 26g/l, and
--FeCl2, its concentration range is from 30g/l and including 30g/l to 300g/l and including 300g/l, particularly concentration range
For from 30g/l and including 30g/l to 60g/l and including 60g/l or concentration range be from 130g/l and including 130g/l to
180g/l and be from 230g/l and including 230g/l to 300g/l and including 300g/l including 180g/l or concentration range.
7. one kind is used in treating stations (3) handle steel band (1) by treatment liquid, particularly for the pickling processes steel bands
System, the system includes the treating stations (3), and the wherein treating stations (3) include with spray section (13), immerse section (14)
Process tank (4), and the treating stations (3) include the public collection device (16) for the treatment liquid,
Wherein the steel band (1) is made up of carbon steel and is the continuous of the substantial horizontal orientation on both its vertical and horizontal directions
Steel band (1),
Wherein the steel band (1) has top surface (1 ') and lower surface (1 "), and the wherein system is configured as in direction of transfer
On the steel band (1) is continuously transported through into the treating stations (3), the direction of transfer parallel to the steel band (1) the longitudinal direction, this
Sample causes
-- when in the spray section (13) that the steel band (1) is in the treating stations (3), the treatment liquid arrives the steel band by spray
(1) on the top surface (1 ') and in the lower surface (1 ") of the steel band (1),
-- when in the immersion section (14) that the steel band (1) is in the treating stations (3), the steel band (1) is immersed in the processing
In liquid,
Wherein the system is configured so that the treatment liquid is continuously pumped out the public collection device (16) and pumped logical
Both the spray section (13) and the immersion section (14) of the treating stations (3) are crossed, the wherein system includes nozzle (15), so
So that the treatment liquid sprays top surface and the lower surface (1 ', 1 ") to the steel band (1) using these nozzles (15)
On.
8. system according to claim 7, wherein the spray section (13) include the longitudinal direction side parallel to the steel band (1)
To effective spray length, so that the top surface of the steel band (1) and the lower surface (1 ', 1 ") are effective positioned at this
The treatment liquid is received when in spray length, the wherein immersion section (14) includes the longitudinal direction parallel to the steel band (1)
Be effectively immersed length, so that the steel band (1) its top surface and lower surface when being effectively immersed positioned at this in length
(1 ', 1 ") is immersed in the treatment liquid, and wherein effective spray length is effectively immersed length with this and is provided with
30:70 and including 30:70 to 70:30 and including 70:Ratio between 30, particularly 50:50 ratio.
9. the system according to one of claim 7 to 8, wherein along the direction of transfer of the steel band (1), the spray section
(14) upstream or downstream of the immersion section (15) are located relative to.
10. the system according to one of claim 7 to 9, wherein for the spray section (13) and the immersion section (14)
The public collection device (5) of both treatment liquids is the collection device separated with the process tank (4) of the treating stations (3)
(5)。
11. the system according to one of claim 7 to 9, wherein for the spray section (13) and the immersion section (14)
The public collection device (5) of both treatment liquids is the collection device with the process tank (4) integration of the treating stations (3)
(5), particularly it is integrated into so that the base section of the process tank (4) forms the public collection device (5).
12. the system according to one of claim 7 to 11, the wherein system include removing the processing in the treating stations (3)
Another treatment liquid in another treating stations (31) beyond liquid, another treating stations (31) include having another
Another process tank (41) of section and another immersion section is sprayed, and another treating stations (31) are another including being used for this
A kind of another public collection device (51) for the treatment of liquid,
Wherein the system is configured so that the steel band (1) continuously transports through another treating stations on the direction of transfer
(31), so that
-- when the steel band (1) is in another spray section of another treating stations (31),
Another treatment liquid by spray to the steel band (1) the top surface (1 ') on and the steel band (1) the bottom table
On face (1 "),
-- when the steel band (1) is in another immersion section of another treating stations (31), the steel band (1) is dipped into
In another treatment liquid, wherein to be configured so that another treatment liquid is continuously pumped out this another for the system
Individual public collection device (51) and pump by this another spray section of another treating stations (31) and this another
Both sections is immersed, the wherein system includes other nozzle, so that another treatment liquid is other using these
On the top surface and the lower surface (1 ', 1 ") of nozzle to spray the steel band (1).
13. the system according to one of claim 7 to 12, the wherein system include removing the processing in the treating stations (3)
The 3rd processing in the 3rd treating stations (32) beyond another treatment liquid in liquid and another treating stations (31)
Liquid, the 3rd treating stations (32) include the 3rd process tank (42) with the 3rd spray section and the 3rd immersion section, and
3rd treating stations (32) include the 3rd public collection device (52) for the 3rd treatment liquid.
14. the system according to one of claim 7 to 13, the wherein treatment liquid and/or another treatment liquid and/
Or the 3rd treatment liquid include
-- hydrochloric acid, its concentration range be from 150g/l and including 150g/l to 250g/l and including 250g/l, and
--FeCl3, its concentration range is to be from 10g/l and including 10g/l to 35g/l and including 35g/l, particularly concentration range
From 15g/l and including 15g/l to 30g/l and including 30g/l or particularly concentration range be from 19g/l and including 19g/l to
26g/l and including 26g/l, and
--FeCl2, its concentration range is from 30g/l and including 30g/l to 300g/l and including 300g/l, particularly concentration range
For from 30g/l and including 30g/l to 60g/l and including 60g/l or concentration range be from 130g/l and including 130g/l to
180g/l and be from 230g/l and including 230g/l to 300g/l and including 300g/l including 180g/l or concentration range.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14195949.4A EP3029163B9 (en) | 2014-12-02 | 2014-12-02 | Method and system of treating a carbon steel strip, especially for pickling |
| EP14195949.4 | 2014-12-02 | ||
| PCT/EP2015/078311 WO2016087493A1 (en) | 2014-12-02 | 2015-12-02 | Method and system of treating a carbon steel strip, especially for a pickling treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107002254A true CN107002254A (en) | 2017-08-01 |
Family
ID=51999367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580065566.5A Pending CN107002254A (en) | 2014-12-02 | 2015-12-02 | Handle carbon steel band, the particularly method and system for pickling processes |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20170268113A1 (en) |
| EP (2) | EP3029163B9 (en) |
| JP (1) | JP2018502985A (en) |
| KR (1) | KR20170088433A (en) |
| CN (1) | CN107002254A (en) |
| BR (1) | BR112017011358A2 (en) |
| CA (1) | CA2969369A1 (en) |
| ES (1) | ES2742827T3 (en) |
| MX (1) | MX2017007112A (en) |
| RU (1) | RU2691688C2 (en) |
| WO (1) | WO2016087493A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499199A (en) * | 2017-08-20 | 2017-12-22 | 芜湖乐普汽车科技有限公司 | A kind of manufacturing process of the head rest component of children car seat |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102088287B1 (en) * | 2019-12-19 | 2020-03-12 | 주식회사 디케이씨 | Vertical Continuous Pickling Equipment |
| KR20220072983A (en) | 2020-11-26 | 2022-06-03 | 한동희 | Anode composites for a Li ion secondary battery, preparation method thereof, Li ion secondary battery including the same |
| CN115261877B (en) * | 2022-08-29 | 2023-12-08 | 粤海中粤(中山)马口铁工业有限公司 | Device and method for eliminating strip steel pickling stop spots by continuous pickling line |
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2015
- 2015-12-02 CN CN201580065566.5A patent/CN107002254A/en active Pending
- 2015-12-02 BR BR112017011358A patent/BR112017011358A2/en not_active Application Discontinuation
- 2015-12-02 KR KR1020177018058A patent/KR20170088433A/en unknown
- 2015-12-02 US US15/532,121 patent/US20170268113A1/en not_active Abandoned
- 2015-12-02 JP JP2017528780A patent/JP2018502985A/en active Pending
- 2015-12-02 CA CA2969369A patent/CA2969369A1/en not_active Abandoned
- 2015-12-02 RU RU2017123254A patent/RU2691688C2/en not_active IP Right Cessation
- 2015-12-02 WO PCT/EP2015/078311 patent/WO2016087493A1/en active Application Filing
- 2015-12-02 MX MX2017007112A patent/MX2017007112A/en unknown
- 2015-12-02 EP EP15804431.3A patent/EP3227466A1/en not_active Withdrawn
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Also Published As
| Publication number | Publication date |
|---|---|
| US20170268113A1 (en) | 2017-09-21 |
| RU2017123254A3 (en) | 2019-04-09 |
| MX2017007112A (en) | 2017-08-18 |
| EP3029163B9 (en) | 2019-11-27 |
| EP3029163B1 (en) | 2019-05-22 |
| EP3227466A1 (en) | 2017-10-11 |
| BR112017011358A2 (en) | 2018-04-03 |
| RU2017123254A (en) | 2019-01-09 |
| CA2969369A1 (en) | 2016-06-09 |
| WO2016087493A1 (en) | 2016-06-09 |
| JP2018502985A (en) | 2018-02-01 |
| RU2691688C2 (en) | 2019-06-17 |
| EP3029163A1 (en) | 2016-06-08 |
| KR20170088433A (en) | 2017-08-01 |
| ES2742827T3 (en) | 2020-02-17 |
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Application publication date: 20170801 |