CN107964643A - Hot-strip continuous hot galvanizing device and method - Google Patents
Hot-strip continuous hot galvanizing device and method Download PDFInfo
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- CN107964643A CN107964643A CN201711441415.2A CN201711441415A CN107964643A CN 107964643 A CN107964643 A CN 107964643A CN 201711441415 A CN201711441415 A CN 201711441415A CN 107964643 A CN107964643 A CN 107964643A
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- 238000005246 galvanizing Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 60
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 29
- 239000011701 zinc Substances 0.000 claims abstract description 29
- 238000002791 soaking Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 description 15
- 239000007789 gas Substances 0.000 description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- 238000005554 pickling Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
Abstract
The present invention relates to a kind of hot-strip continuous hot galvanizing equipment, inlet seal section (1), bringing-up section (2), soaking zone (3), cooling section (4), outlet section (5) and the zinc pot (9) that can be passed sequentially through in order including the hot-strip through overpickling, wherein, the bringing-up section (2) has induction heating equipment.The invention further relates to a kind of hot-strip continuous hot galvanizing method, which uses above-mentioned hot-strip continuous hot galvanizing equipment, and includes the following steps：Hot-strip is set to pass through the bringing-up section (2), wherein, hot-strip is heated in the reducing atmosphere in the bringing-up section (2) makes the oxide thin layer iron of Surfaces of Hot Rolled Strip fully reduce (S1), hot-strip is passed through the soaking zone (3) and the cooling section (4) (S2), make hot-strip be adapted to zinc-plated technological temperature to enter zinc pot (9) with one and carry out zinc-plated (S3).
Description
Technical field
The present invention relates to a kind of hot-strip continuous hot galvanizing device and method, and sensing heating is used more particularly, to one kind
The hot-strip continuous hot galvanizing device and method of mode.
Background technology
At present, galvanized wire is substantially the galvanized sheet that production cold-reduced sheet is substrate, there is no the extensive hot-strip of specialty
Continuous zinc coating line.
Hot rolled galvanized sheet be using hot rolled plate as substrate after overpickling directly it is zinc-plated, with traditional galvanized sheet (cold-rolling galvanization) phase
Than having obvious price advantage due to having lacked this procedure of cold rolling.Past, hot rolled plate are always to use painting antirust,
Corrosion resistance is poor.With the raising that user requires its anti-corrosion capability, it is best solution route to implement galvanizing.It is more early
Hot rolled plate galvanizing be single steel plate solvent technique heat galvanizing because pollution environment, low output, of poor quality, this technique is
It is eliminated.
With the progress of thin plate blank continuously casting and continuously rolling technology, the quality of hot-strip is continuously improved, and has widened hot rolled galvanized sheet
Use scope.In recent years, in the market increases the demand of hot-strip galvanized sheet year by year, using hot rolled plate as the zinc-plated of substrate
Plate, can be used to substitute the higher cold-rolling galvanization of cost in all conglomeraties such as building, bridge, steel silo, automobile, highway, railway
Plate, and there is the very big market competitiveness.
Due to the progress of hot strip rolling technology, there is continuous casting and rolling technique of sheet bar (CSP), make the thickness of hot-strip
Degree is gradually thinned, and objectively provides the hot rolling board raw material that mechanical performance is more preferable and specification is thinner for hot rolled galvanized sheet, so
Certain field hot dip galvanizing of hot-rolled strip plate can substitute the function of lvanized cold rolled strip, and have obvious cost advantage.But, hot rolling
Strip continuous hot galvanizing technology is, it is necessary to the cooperation of much front and rear equipment, and includes the confession of the relatively regular hot-strip of template
Give.
The technical process of hot-strip continuous zinc coating is：Hot-strip is directly entered in reduction furnace through after line pickling,
The iron oxide of belt steel surface is reduced in reduction furnace, is then cooled to zinc-plated required temperature again, it is zinc-plated into zinc pot.Wherein,
Heating process of the strip in reduction furnace is highly important technical process, and strip must be heated to 500 in a reducing atmosphere
The oxide thin layer iron of belt steel surface is reduced more than DEG C, the galvanizing quality that otherwise can not have been obtained.Current reduction furnace uses
Gas fired radiant tubes heats.
Gas fired radiant tubes heating is the prevailing technology technology of this area, which is from cold-strip steel continuous hot galvanizing technology
Transplanting.The major heat conduction mode of gas fired radiant tubes heating is radiation, its operation principle is：Combustion gas heat resisting steel or its
Sealing combustion inner pipe made of its heat proof material, is added by heat exchange pattern of the heated radiation pipe surface based on heat radiation
Strip in thermal reduction furnace；Flue gas is discharged through flue caused by burning, and most of gas fired radiant tubes is additionally provided with fume afterheat and returns
Receiving apparatus.
Gas fired radiant tubes heats, and is the heat exchange pattern by radiation, strip is heated to required temperature.Radiant heating
The thermal efficiency is relatively low, and heat penetrates strip, and it is completely heated up longer to required temperature, heating time in a thickness direction.In order to protect
Demonstrate,prove enough heating efficiencies, it is necessary to configure greater number of gas fired radiant tubes, therefore furnace superintendent is longer；Meanwhile fire box temperature is high, makes
Operating environment is poor around into stove；Flue gas is discharged into air caused by burning, wherein containing a large amount of nitrogen oxides and particle
Emission.
Accordingly, it is desirable to be able to improve to the mode of heating of strip in hot-strip continuous hot galvanizing, to improve heating effect
Rate, shorten the pollution of heating time, reduction to surrounding environment.
The content of the invention
Therefore, on the one hand, the technical problems to be solved by the invention are that providing a kind of hot-strip continuous hot galvanizing sets
It is standby.
This technical problem is solved by a kind of hot-strip continuous hot galvanizing equipment.The hot-strip continuously dip coat
Zinc equipment include the hot-strip through overpickling can pass sequentially through in order inlet seal section, bringing-up section, soaking zone, cooling
Section, outlet section and zinc pot, wherein, the bringing-up section has induction heating equipment.
A kind of preferred implementing form of hot-strip continuous hot galvanizing equipment according to the present invention, bringing-up section exit is equipped with
For detecting the first temperature-detecting device of Surfaces of Hot Rolled Strip temperature.Preferably, the heat of the sensing heating in bringing-up section is born
Lotus adjusts according to the temperature that first temperature-detecting device detects.
A kind of preferred implementing form of hot-strip continuous hot galvanizing equipment according to the present invention, the exit of soaking zone is set
It is useful for the second temperature detection device of detection Surfaces of Hot Rolled Strip temperature.The furnace wall of soaking zone is equipped with electrical heating radiant tube,
The heating of the electrical heating radiant tube is adjusted according to the temperature that the second temperature detection device detects.Preferably,
Electrical heating radiant tube is arranged with being staggered.
A kind of preferred implementing form of hot-strip continuous hot galvanizing equipment according to the present invention, the exit of outlet section is set
It is useful for the 3rd temperature-detecting device of detection Surfaces of Hot Rolled Strip temperature.Preferably, cooling section includes frequency conversion circulating fan
And heat exchanger, the flow of the frequency conversion circulating fan according to the belt steel surface temperature that the 3rd temperature-detecting device detects into
Row adjustment, so that the hot-strip into the zinc pot keeps the zinc-plated temperature of continuous-stable.
On the other hand, the technical problems to be solved by the invention, which also reside in, provides a kind of hot-strip continuous hot galvanizing side
Method.
This technical problem is addressed by a kind of hot-strip continuous hot galvanizing method according to the present invention.The hot rolling
Used by strip continuous hot galvanizing method hot-strip continuous hot galvanizing equipment include the hot-strip through overpickling can be by
Inlet seal section, bringing-up section, soaking zone, cooling section, outlet section and the zinc pot that order passes sequentially through, the bringing-up section have sensing
Heating equipment, wherein, which includes the following steps：
Hot-strip is set to pass through the bringing-up section, wherein, hot-strip is added in the reducing atmosphere in the bringing-up section
Heat to making the oxide thin layer iron of Surfaces of Hot Rolled Strip fully reduce,
Hot-strip is set to pass through the soaking zone and the cooling section,
Hot-strip is set to be adapted to zinc-plated technological temperature zinc-plated into zinc pot progress with one.
A kind of preferred implementing form of hot-strip continuous hot galvanizing method according to the present invention, passes through institute in hot-strip
When stating in bringing-up section, the temperature detected according to the first temperature-detecting device of the exit of bringing-up section arrangement is to adjust
State the thermic load of the sensing heating in bringing-up section.
A kind of preferred implementing form of hot-strip continuous hot galvanizing method according to the present invention, passes through institute in hot-strip
When stating soaking zone, the second temperature for being used to detect Surfaces of Hot Rolled Strip temperature arranged according to the exit of the soaking zone detects
The temperature that device detects adjusts the heating for the electrical heating radiant tube arranged on the furnace wall of the soaking zone.
A kind of preferred implementing form of hot-strip continuous hot galvanizing method according to the present invention, passes through institute in hot-strip
When stating cooling section, according to the 3rd temperature detection for being used to detect Surfaces of Hot Rolled Strip temperature of the exit of outlet section arrangement
Belt steel surface temperature that device detects adjusts the flow of the frequency conversion circulating fan of the cooling section, so that into the zinc pot
Hot-strip keep continuous-stable zinc-plated temperature.
As long as it can meet zincincation since the hot-strip after pickling reduces oxide thin layer iron existing for its surface
Requirement, and sensing heating be exactly have the characteristics that the depth of current penetration it is small, can heated metal surfaces thin layer rapidly, thus with biography
The advantages of gas fired radiant tubes heating technique of system is compared, hot-strip continuous hot galvanizing device and method of the invention ten is clearly demarcated
It is aobvious：Induction heating technique is applied in hot-strip continuously dip coat zinc technology by the present invention, and induction heating technique can be with high efficiency
Metal surface is heated to more than 500 DEG C, achieve the purpose that reduce belt steel surface iron oxide, meet zincincation requirement.Compared with
Heated in traditional gas fired radiant tubes, induction heating technique has the characteristics that the depth of current penetration is small, thus can heat rapidly
Metal surface thin layer.The application of induction heating technique, can make furnace superintendent shorten 45% or so so that hot-strip continuous zinc coating line
Taken up space smaller, flow are shorter, more efficient, more energy saving.Further, since there is no nitrogen caused by fuel gas buring in technique
Oxide or particle emission, thus it is very environmentally friendly.
Hot-strip is not by cold reduced work hardened, and the rear surface through pickling is clean and inherently equi-axed crystal
Institutional framework, without annealing, as long as hot-strip in annealing furnace by oxide thin layer iron sheet existing for surface by hydrogen also
Original has just reached the requirement of heat treatment.And iron oxide in reduction furnace by the temperature of hydrogen reducing, as long as higher than 500 DEG C i.e.
Can, it is not necessary to carry out the high temperature anneal.
Brief description of the drawings
Fig. 1 is the schematic diagram of hot-strip continuous hot galvanizing equipment according to the present invention.
Embodiment
Fig. 1 is the schematic diagram of hot-strip continuous hot galvanizing equipment according to the present invention.As shown in the figure, according to the present invention
Hot-strip continuous hot galvanizing equipment one embodiment in, the hot-strip after line pickling, is entered by inlet seal section 1
Bringing-up section 2, is heated to more than 500 DEG C in a reducing atmosphere, and the oxide thin layer iron of belt steel surface is fully reduced, is then passed through
Soaking zone 3 and cooling section 4, make belt steel temperature be maintained at 475 DEG C or so after outlet section 5 enter zinc pot 9 it is zinc-plated.Into zinc pot
Temperature should be according to the thickness and rolled product variety adjustment of strip.Wherein, bringing-up section 2 is sensing heating section, and soaking zone 3 is electrical heating soaking
Section, cooling section 4 is spray cooling section.
Sensing heating section is mainly made of induction heating equipment, the protective gas formed full of nitrogen/hydrogen in stove with
Ensure the reducing atmosphere in stove.The exit of sensing heating section is equipped with a pyrometer 6, for accurately detecting the surface temperature of strip
Degree, to control the thermic load of sensing heating.One pyrometer 7 is set in soaking zone exit, for detecting and controlling soaking zone
The surface temperature of strip afterwards.Set in outlet section equipped with a pyrometer 8, for detecting belt steel surface temperature so as to adjust injection
The flow of cooling section frequency conversion circulating fan, achievees the purpose that accurately to control belt steel surface temperature, ensures strip by cooling section
The zinc-plated temperature of continuous-stable is obtained afterwards and is completed into zinc pot zinc-plated.
One embodiment of hot-strip continuous hot galvanizing equipment according to the present invention is described above, according to the present invention
Hot-strip continuous hot galvanizing method can combine above-mentioned hot-strip continuous hot galvanizing equipment and implement.
First, the hot-strip after pickling enters induction heater by inlet seal section 1, in the reduction of sensing heating section
560 DEG C or so are heated in atmosphere, the oxide thin layer iron of Surfaces of Hot Rolled Strip is fully reduced, this technical process is extremely closed
Key, if iron oxide fails effectively to reduce, occurs plating leakage zinc phenomenon, or even can not be zinc-plated.The heating-up temperature of strip should basis
The kind and thickness of strip are adjusted, to adapt to the zinc-plated temperature requirements of different size strip.The height that this section of exit is set
Temperature meter 6, for accurately detecting the surface temperature of strip, to control the thermic load of sensing heating, and according to different strip steel specifications
Carry out the accurate heating-up temperature for adjusting strip.
Then, strip enters electrical heating soaking zone from sensing heating section.Electrical heating is set to radiate on the furnace wall of soaking zone 3
Pipe, the surface temperature of strip is maintained by the heating of electrical heating radiant tube, and belt steel surface temperature is kept uniform, to avoid
The hot-spot of strip, electrical heating radiant tube may be designed to the arrangement that is staggered.Meanwhile one height is set in soaking zone exit
Temperature meter 7, for detecting and controlling the surface temperature of strip.
Then, strip enters spray cooling section by soaking zone 3.Spray cooling section is by frequency conversion circulating fan and heat exchanger group
Into the belt steel surface temperature that the pyrometer 8 by being arranged on outlet section 5 is detected, adjusts the flow of frequency conversion circulating fan, reach
The purpose of accurate control belt steel surface temperature, makes the strip for entering spray cooling section obtain after the zinc-plated temperature of continuous-stable again
Into zinc pot 9, moreover, even if different size strip is different to zinc-plated temperature requirement, spirit can be carried out by adjusting compressor flow
Live and accurately adjust.
Finally, strip is zinc-plated into zinc pot via outlet section by spray cooling section.Strip enter zinc pot before temperature very
It is crucial.Strip enters the temperature of zinc pot, the thickness of iron-zinc alloy layer is directly affected, so as to significantly affect coating performance.Experience
Show, if strip enters the temperature drift or relatively low of zinc pot, can not obtain the galvanizing production of qualification.
Only define that bringing-up section 2 has induction heating equipment in above-described embodiment, do not exclude other heating clearly
Used while technology.Therefore, other heating techniques are also used at the same time even outside induction heating technique, also can not
Achieve the purpose that to evade the scope of the present invention.As long as on the contrary, induction heating technique is applied in bringing-up section, regardless of whether also adopting
All should be considered as to fall under the scope of the present invention with traditional gas fired radiant tubes mode of heating.
In addition, just as above words, gas fired radiant tubes heating is the prevailing technology technology of this area, which is from cold rolling
Strip continuous hot galvanizing technology transplant.Therefore, it is readily appreciated that sensing heating is used in hot-strip continuously dip coat zinc technology
Technical substitution gas fired radiant tubes heating technique is not the simple substitute of equivalent technologies mean yet, because cold-strip steel continuously dip coat
The practice of zinc technology can provide this opposite teaching, and the front and rear equipment that is related to is all more complicated.
Describe the preferred embodiment of the present invention above, but the spirit and scope of the present invention be not limited to it is disclosed herein
Particular content.Those skilled in the art can according to the present invention instruct and make more embodiments and application, these realities
Apply mode and application would be within the spirit and scope of the present invention.The spirit and scope of the present invention are not limited by specific embodiment,
And it is defined by the claims.
Reference numerals list
1 inlet seal section
2 bringing-up sections
3 soaking zones
4 cooling sections
5 outlet sections
6 first temperature-detecting devices
7 second temperature detection devices
8 the 3rd temperature-detecting devices
9 zinc pots.
Claims (11)
1. a kind of hot-strip continuous hot galvanizing equipment, including entering of can passing sequentially through in order of the hot-strip through overpickling
Mouth seal section (1), bringing-up section (2), soaking zone (3), cooling section (4), outlet section (5) and zinc pot (9),
It is characterized in that, the bringing-up section (2) has induction heating equipment.
2. hot-strip continuous hot galvanizing equipment according to claim 1,
It is characterized in that, bringing-up section (2) exit is equipped with the first temperature detection for being used for detecting Surfaces of Hot Rolled Strip temperature
Device (6), what the thermic load of the sensing heating in the bringing-up section (2) was detected according to first temperature-detecting device (6)
Temperature adjusts.
3. hot-strip continuous hot galvanizing equipment according to claim 1,
It is characterized in that, soaking zone (3) exit is equipped with the second temperature detection for being used to detect Surfaces of Hot Rolled Strip temperature
Device (7).
4. hot-strip continuous hot galvanizing equipment according to claim 3,
It is characterized in that, the furnace wall of the soaking zone (3) is equipped with electrical heating radiant tube, the heating root of the electrical heating radiant tube
The temperature detected according to the second temperature detection device (7) is adjusted.
5. hot-strip continuous hot galvanizing equipment according to claim 4,
It is characterized in that, the electrical heating radiant tube is arranged with being staggered.
6. hot-strip continuous hot galvanizing equipment according to claim 1,
It is characterized in that, outlet section (5) exit is equipped with the 3rd temperature detection for being used for detecting Surfaces of Hot Rolled Strip temperature
Device (8).
7. hot-strip continuous hot galvanizing equipment according to claim 6,
It is characterized in that, the cooling section (4) includes frequency conversion circulating fan and heat exchanger, the flow root of the frequency conversion circulating fan
The belt steel surface temperature detected according to the 3rd temperature-detecting device (8) is adjusted, so that into the zinc pot (9)
Hot-strip keeps the zinc-plated temperature of continuous-stable.
8. a kind of hot-strip continuous hot galvanizing method, which uses as in claim 1-7
Any one of them hot-strip continuous hot galvanizing equipment,
It is characterized in that, this method comprises the following steps：
Hot-strip is set to pass through the bringing-up section (2), wherein, quilt in reducing atmosphere of the hot-strip in the bringing-up section (2)
It is heated to make the oxide thin layer iron of Surfaces of Hot Rolled Strip fully to reduce (S1),
Hot-strip is set to pass through the soaking zone (3) and the cooling section (4) (S2),
Make hot-strip be adapted to zinc-plated technological temperature to enter zinc pot (9) with one and carry out zinc-plated (S3).
9. hot-strip continuous hot galvanizing method according to claim 8,
It is characterized in that, when hot-strip is interior by the bringing-up section (2), arranged according to the exit of the bringing-up section (2)
The first temperature-detecting device (6) temperature for detecting adjust the thermic load of the sensing heating in the bringing-up section (2).
10. hot-strip continuous hot galvanizing method according to claim 8,
It is characterized in that, when hot-strip passes through the soaking zone (3), arranged according to the exit of the soaking zone (3)
The temperature that second temperature detection device (7) for detecting Surfaces of Hot Rolled Strip temperature detects adjusts the soaking zone (3)
The heating for the electrical heating radiant tube arranged on furnace wall.
11. hot-strip continuous hot galvanizing method according to claim 8,
It is characterized in that, when hot-strip passes through the cooling section (4), arranged according to the exit of the outlet section (5)
The belt steel surface temperature that the 3rd temperature-detecting device (8) for detecting Surfaces of Hot Rolled Strip temperature detects adjusts the cooling
The flow of the frequency conversion circulating fan of section (4), so that the hot-strip into the zinc pot (9) keeps the zinc-plated temperature of continuous-stable
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441415.2A CN107964643A (en) | 2017-12-27 | 2017-12-27 | Hot-strip continuous hot galvanizing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441415.2A CN107964643A (en) | 2017-12-27 | 2017-12-27 | Hot-strip continuous hot galvanizing device and method |
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| Publication Number | Publication Date |
|---|---|
| CN107964643A true CN107964643A (en) | 2018-04-27 |
Family
ID=61996058
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|---|---|---|---|
| CN201711441415.2A Pending CN107964643A (en) | 2017-12-27 | 2017-12-27 | Hot-strip continuous hot galvanizing device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174914A (en) * | 2019-06-24 | 2019-08-27 | 马钢(合肥)板材有限责任公司 | The method of aluminium-plated powder effect is improved in a kind of thermostatic control device and aluminium silicon household electrical appliances board production technology |
| CN110965000A (en) * | 2019-11-25 | 2020-04-07 | 徐州鑫泰镀锌设备有限公司 | Hot-rolled strip steel continuous hot galvanizing equipment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794524A (en) * | 1980-12-04 | 1982-06-12 | Nippon Kokan Kk <Nkk> | Method for continuous annealing |
| JPH02166234A (en) * | 1988-12-20 | 1990-06-26 | Sumitomo Metal Ind Ltd | Method for continuously annealing steel sheet |
| JPH04154947A (en) * | 1990-10-12 | 1992-05-27 | Daido Steel Co Ltd | Annealing furnace for galvanizng steel strip |
| JPH07252624A (en) * | 1994-03-11 | 1995-10-03 | Kawasaki Steel Corp | Production of hot-dip galvanized steel sheet |
| US5472528A (en) * | 1992-03-19 | 1995-12-05 | Stein Heurtey | Heat-treatment method for metal strips |
| JPH093552A (en) * | 1995-06-23 | 1997-01-07 | Nippon Steel Corp | Continuous hot dip galvanizing equipment for effectively producing hot dip galvanized steel sheet |
| JP2004232007A (en) * | 2003-01-29 | 2004-08-19 | Nippon Steel Corp | Continuous type heat treatment facility for steel strip, and its combustion method |
| CN202047124U (en) * | 2011-04-13 | 2011-11-23 | 宝山钢铁股份有限公司 | Hot rolling pickling strip steel continuous hot galvanizing production line |
| CN102325907A (en) * | 2008-12-26 | 2012-01-18 | Posco公司 | Steel sheet annealing device, device for producing plated steel sheet comprising the same, and production method for plated steel sheet using the same |
| CN105132666A (en) * | 2014-05-30 | 2015-12-09 | 宝山钢铁股份有限公司 | Pickling-free continuous annealing furnace reducing gas recycle use system and use method thereof |
| CN207775327U (en) * | 2017-12-27 | 2018-08-28 | 安德里茨（中国）有限公司 | Hot-strip continuous hot galvanizing equipment |
-
2017
- 2017-12-27 CN CN201711441415.2A patent/CN107964643A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5794524A (en) * | 1980-12-04 | 1982-06-12 | Nippon Kokan Kk <Nkk> | Method for continuous annealing |
| JPH02166234A (en) * | 1988-12-20 | 1990-06-26 | Sumitomo Metal Ind Ltd | Method for continuously annealing steel sheet |
| JPH04154947A (en) * | 1990-10-12 | 1992-05-27 | Daido Steel Co Ltd | Annealing furnace for galvanizng steel strip |
| US5472528A (en) * | 1992-03-19 | 1995-12-05 | Stein Heurtey | Heat-treatment method for metal strips |
| JPH07252624A (en) * | 1994-03-11 | 1995-10-03 | Kawasaki Steel Corp | Production of hot-dip galvanized steel sheet |
| JPH093552A (en) * | 1995-06-23 | 1997-01-07 | Nippon Steel Corp | Continuous hot dip galvanizing equipment for effectively producing hot dip galvanized steel sheet |
| JP2004232007A (en) * | 2003-01-29 | 2004-08-19 | Nippon Steel Corp | Continuous type heat treatment facility for steel strip, and its combustion method |
| CN102325907A (en) * | 2008-12-26 | 2012-01-18 | Posco公司 | Steel sheet annealing device, device for producing plated steel sheet comprising the same, and production method for plated steel sheet using the same |
| CN202047124U (en) * | 2011-04-13 | 2011-11-23 | 宝山钢铁股份有限公司 | Hot rolling pickling strip steel continuous hot galvanizing production line |
| CN105132666A (en) * | 2014-05-30 | 2015-12-09 | 宝山钢铁股份有限公司 | Pickling-free continuous annealing furnace reducing gas recycle use system and use method thereof |
| CN207775327U (en) * | 2017-12-27 | 2018-08-28 | 安德里茨（中国）有限公司 | Hot-strip continuous hot galvanizing equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174914A (en) * | 2019-06-24 | 2019-08-27 | 马钢(合肥)板材有限责任公司 | The method of aluminium-plated powder effect is improved in a kind of thermostatic control device and aluminium silicon household electrical appliances board production technology |
| CN110965000A (en) * | 2019-11-25 | 2020-04-07 | 徐州鑫泰镀锌设备有限公司 | Hot-rolled strip steel continuous hot galvanizing equipment |
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