CN106191732A - A kind of method reducing continuous hot-dipping galvanizing zinc pot key position cadmia - Google Patents
A kind of method reducing continuous hot-dipping galvanizing zinc pot key position cadmia Download PDFInfo
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- CN106191732A CN106191732A CN201610674067.2A CN201610674067A CN106191732A CN 106191732 A CN106191732 A CN 106191732A CN 201610674067 A CN201610674067 A CN 201610674067A CN 106191732 A CN106191732 A CN 106191732A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C2/003—Apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The present invention relates to a kind of method reducing continuous hot-dipping galvanizing zinc pot key position cadmia, relate to continuous hot-dipping galvanizing technical field, the technical scheme is that at continuous hot-dipping galvanizing zinc pot other increase by the one pre-zinc melting pot of external high temperature.Zinc liquid in the pre-zinc melting pot of external high temperature is heated above continuous hot-dipping galvanizing zinc pot mean temperature 10 DEG C～20 DEG C, and under two effects taking out zinc pump, the high temperature zinc liquid in the pre-zinc melting pot of external high temperature is extracted in continuous hot-dipping galvanizing Xin GuoVXing district more than sinking roller.Under steel plate, sinking roller and stable mixed effect, high temperature zinc liquid is distributed in V-arrangement district by full and uniform, and ShiVXing district is heated.Ferrum dissolubility in high temperature zinc liquid becomes big, thus the ferrum separated out tails off, and decreases the generation of the internal cadmia in V-arrangement district.Eliminate the slag inclusion that cadmia produces under steel band, sinking roller and stabilizing roller effect, largely ensure that the surface quality of the zinc-plated steel plate afterwards of steel plate.
Description
Technical field
The present invention relates to continuous hot-dipping galvanizing field, specifically a kind of minimizing continuous hot-dipping galvanizing zinc pot key position cadmia
Method.
Technical background
Under usual condition, the corrosion resistance of zinc is more than 25 times of steel, but, world's storage capacity of iron and steel and ferrous materials
The excellent properties that contains and preferably machinability so that the annual usage amount of iron and steel is the hugest.Can be reasonable and effective
Development and utilization ferrous materials be modern industry research an important topic.Steel plate be widely used in modern automobile industry,
Building industry and household electrical appliances industry, the exploitation of anti-corrosion steel plate is the important content of modern anticorrosion technique.Zinc-aluminium-alloy steel plate
The anti-corrosion property possessing zinc because of it and the durable protection feature of aluminum and be widely used in auto industry, building industry and household electrical appliances
Industry.Have been developed over multiple zinc-aluminium-alloy technique at present, such as Galvalume clad steel sheet, there is the combination property of excellence
With beautiful outward appearance and be widely used.GA steel plate is extensively applied to automobile exterior panel, the current substantially all employing of Japanese car
Outside plate made by GA steel plate, and the auto manufacturing of American-European countries also gradually steps up the usage amount of galvanized steel plain sheet.
At present, continuous hot-dipping galvanizing alloy production line exists a serious restriction production efficiency and the pass of plate quality
Key problem, cadmia.Generating of cadmia is affected by various factors such as the aluminum content in zinc pond, Operating parameters etc..Zinc
Pot, as the core process equipment of continuous hot-dipping production technology, reasonably controls the Operating parameters of zinc pot to controlling cadmia
Generation has vital effect.Having carried out the research much about zinc pot at present both at home and abroad, some scholars utilize experiment mould
Type research zinc pot flow regime, understands the nowed forming within zinc pot to cadmia and each component distribution influence；Some scholars utilize
Numerical simulation studies that various zinc pot Operating parameters such as senses heater power, steel band enters pot temperature and zinc pond temperature etc. is right
The impact of the formation of slag in zinc pot.These researchs promote the understanding to continuous hot-dipping galvanizing pot and control to a great extent,
Optimize Operating parameters, improve steel plate hot immersion plating quality.
Ferrum is the arch-criminal that cadmia is formed, and the ferrum that steel plate dissolves in brought into zinc pot makes the existence of ferrum in zinc pond be not
Evitable.Steel plate has just enter into the moment in zinc pond, and steel plate and zinc pond are in metastable equilibrium state, now steel plate and interface, zinc pond
The iron content ferrum to be significantly larger than dissolubility in zinc pond.Therefore, the ferrum of interface generates alloy layer except participating in reaction
Part, remaining all enter zinc pond.The iron content that the generation of cadmia is because in zinc pond has exceeded its satisfying in zinc pond
And dissolubility.The generation of cadmia to be reduced, controlling the iron content in zinc pot is a kind of thinking, and another kind of thinking is to allow more ferrum
It is dissolved in zinc liquid, from without generating cadmia to plate quality generation impact.The steel band entrance of continuous hot-dipping galvanizing zinc pot and
The cadmia generated in the V-arrangement district that steel band outlet is formed, can glue under the effect of steel band, sinking roller and staggered stabilizing roller
It is attached to surface of steel plate and forms slag inclusion, have a strong impact on steel strip surface quality.The quantity of cadmia in minimizing V-arrangement district, to guaranteeing to obtain height
The galvanized steel plain sheet of quality has pivotal role.
Summary of the invention
It is an object of the invention to provide one to reduce continuous hot-dipping galvanizing zinc pot key position on the basis of above-mentioned thinking
The method of cadmia.
Utilize the different solubility of ferrum under different temperatures, so that the steel band entrance of continuous hot-dipping galvanizing zinc pot and steel band
Having higher temperature in the V-arrangement district that outlet is formed, zinc liquid can dissolve more ferrum so that this position is formed less
Cadmia.Ferrum dissolubility in zinc liquid meets below equation ln [Fe] °=17.78-15.388/T.Therefore, along with temperature raises,
Ferrum dissolubility in zinc increases.(Tang N Y.Determination of Liquid-Phase Boundaries in
Zn-Fe-Mx Systems [J] .Journal of Phase Equilibria.2000,21 (1): 3-4.) the depositing of ferrum in zinc liquid
Having two kinds in form, one is presented in solute in zinc liquid, a kind of presented in slag in zinc liquid.When in zinc liquid
Iron content has exceeded the saturation solubility that zinc pot temperature is corresponding, then unnecessary ferrum will be present in zinc liquid in the way of cadmia.
The existence of cadmia is not only degrading plate surface quality, when the cadmia content in zinc pot is more, needs shutdown to dig slag, constrains
The production capacity of continuous hot-dipping galvanizing unit plays.Based on this, reduce the generation of cadmia in zinc pot and promotion continuous hot-dipping galvanizing is developed
There is important function.
For reaching above-mentioned purpose, the present invention is achieved through the following technical solutions, and comprises the steps of
A kind of minimizing continuous hot-dipping galvanizing zinc pot key position cadmia method, arranges one on continuous hot-dipping galvanizing zinc pot side
The pre-zinc melting pot of external high temperature, in the described pre-zinc melting pot of external high temperature, the temperature of zinc liquid is higher than zinc liquid in continuous hot-dipping galvanizing zinc pot
Mean temperature；Continuous hot-dipping galvanizing zinc pan has steel band entrance and steel band outlet, and described steel band entrance and steel band go out interruption-forming V-arrangement
District, has sinking roller and stabilizing roller in V-arrangement district；On the pre-zinc melting pot of external high temperature by arrange two take out zinc pump by zinc liquid extract out,
And two taken out zinc pump and be connected with continuous hot-dipping galvanizing zinc pot by two derivation pipelines respectively.
Under two drivings taking out zinc pump, by two derivation pipelines, the zinc liquid in pre-for external high temperature zinc melting pot is synchronized
Extract equally to continuous hot-dipping galvanizing Xin GuoVXing district, the position below zinc liquid level, more than sinking roller.At steel band, sinking roller
With under the effect of stabilizing roller, in the pre-zinc melting pot of external high temperature, the zinc liquid of extraction is uniformly dispersed in V-arrangement district, it is achieved to V
The heat effect in shape district.Utilize ferrum dissolubility in zinc liquid under high temperature to become big, reduce the iron content in V-arrangement district zinc liquid.Realize
Zinc pot key position: in V-arrangement district, the quantity of cadmia reduces, reduces cadmia and is formed under the effect of steel plate, sinking roller and stabilizing roller
The probability of slag inclusion, it is achieved the optimization to plate quality.
The pre-zinc melting pot of external high temperature mends, by arranging, the zinc liquid consumed in the outer pre-zinc melting pot of high temperature of ingot mouth added body, is mending ingot
Mouthful add in ZnAl alloy ingot or pure zinc ingot, and the pre-zinc melting pot of ZnAl alloy ingot or pure zinc ingot high temperature in vitro after fusing
Stirred so that in the pre-zinc melting pot of external high temperature, the temperature of zinc liquid is more uniform.
A kind of above-mentioned minimizing continuous hot-dipping galvanizing zinc pot key position cadmia method, for ensureing that high temperature zinc liquid is in V-arrangement district
Be evenly distributed, the distribution above sinking roller of two derivation pipelines presents symmetrical, and two derivation pipelines are respectively away from heavy
Distance H there be not roller two ends is 300～400mm.
A kind of above-mentioned minimizing continuous hot-dipping galvanizing zinc pot key position cadmia method, by the above-mentioned external height of derivation pipeline
Zinc liquid in the pre-zinc melting pot of temperature is heated to exceed continuous hot-dipping galvanizing zinc pot mean temperature 10 DEG C～20 DEG C.
A kind of above-mentioned minimizing continuous hot-dipping galvanizing zinc pot key position cadmia method, in galvanized pot, the amount of cadmia reduces
22%～about 65%.
A kind of device reducing the formation of continuous hot-dipping galvanizing zinc of zinc pot slag, including galvanizing by dipping zinc pot, at continuous hot-dipping
Being provided with a pre-zinc melting pot of external high temperature by zinc zinc pot, the pre-zinc melting pot of external high temperature is rectangular-shaped, size is embodied in: length side
To relatively big, width is less.Zinc supplement ingot position is in the side away from continuous hot-dipping galvanizing zinc pot.Thus avoid cold zinc ingot metal to exist
After adding the pre-zinc melting pot of external high temperature, smoked zinc pumping because having little time heating bigger to continuous hot-dipping galvanizing zinc pot causes
Temperature fluctuation, bigger temperature fluctuation easily causes the generation of cadmia.
Above-mentioned a kind of reduce the device that continuous hot-dipping galvanizing zinc of zinc pot slag is formed, two same sizes take out zinc pump away from
Certain position under zinc liquid level, this reference by location takes out zinc pump service manual, disposes take out the position of zinc pump according to specifically taking out zinc pump specification
Put.By deriving pipeline, the high temperature zinc liquid after fritting heating is drawn into more than continuous hot-dipping galvanizing Xin GuoVXing district sinking roller one
Location is put.
Above-mentioned a kind of device reducing the formation of continuous hot-dipping galvanizing zinc of zinc pot slag, described galvanized pot uses sensing heating
Device mode heats, and the described pre-zinc melting pot of external high temperature uses and carries out heating and thermal insulation, with certain agitation around resistor heating
Effect so that the zinc liquid after Jia Re can sufficient mix homogeneously, the zinc liquid being drawn in galvanized pot will not be made
Become bigger temperature fluctuation, reduce the generation of slag.
Above-mentioned a kind of device reducing the formation of continuous hot-dipping galvanizing zinc of zinc pot slag, described derivation pipeline floods to zinc liquid level
Hereinafter, more than sinking roller.
Above-mentioned a kind of device reducing the formation of continuous hot-dipping galvanizing zinc of zinc pot slag, described derivation pipeline all uses fire-resistant resistance to
Corrosion graphite pipeline, pipeline uses circular or square, depends on the circumstances.Derive and do not affect continuously in the layout of pipeline as far as possible
The operation of hot-dip galvanizing line.
Above-mentioned a kind of device reducing the formation of continuous hot-dipping galvanizing zinc of zinc pot slag, galvanized pot and external high temperature fritting zinc
The surrounding of pot and bottom inside all use fire-resistant corrosion-resistant material, and fire-resistant corrosion-resistant material outer layer uses steel plate layer cladding.
Step and the feature of described method include:
(1) high temperature zinc liquid in external high temperature premelting pot is extracted to plating by continuous hot-dipping galvanizing zinc pot by taking out zinc pumping system
Continuously in hot-dip galvanizing zinc GuoVXing district, below zinc liquid level, the above certain position of sinking roller.For ensure high temperature zinc liquid V-arrangement district point
Cloth is uniform, and derivation pipeline, within continuous hot-dipping galvanizing Xin GuoVXing district, more than sinking roller symmetrically formula to be arranged, derive pipeline
Away from sinking roller two ends 300mm～400mm.It is drawn into the high temperature zinc liquid in continuous hot-dipping galvanizing Xin GuoVXing district at steel band, sinking roller
Raise with temperature in the effect Xia ShiVXing district of stabilizing roller.
(2) high temperature fritting zinc is supplemented by addition ZnAl alloy ingot or pure zinc ingot in the pre-zinc melting pot of external high temperature
The consumption of zinc liquid in Guo.Use and around resistance, pre-zinc melting pot is heated, simultaneously with certain agitation, accelerate the biography of heat
Pass so that the homogeneous temperature of the zinc liquid in entrance continuous hot-dipping galvanizing zinc pot.
(3), inside continuous hot-dipping galvanizing Xin GuoVXing district, utilize ferrum dissolubility in zinc liquid under high temperature to become big, thus subtract
Few ferrum separated out and zinc react generation cadmia, decrease the generation of slag inclusion between sinking roller, stabilizing roller and steel plate, improve steel plate matter
Amount.
(4) by using a kind of device reducing the formation of continuous hot-dipping galvanizing zinc of zinc pot slag, the amount of cadmia will reduce 22%
～about 65%, greatly enhance the quality of galvanized steel plain sheet, improve productivity ratio to a certain extent simultaneously.
A kind of method reducing continuous hot-dipping galvanizing zinc pot key position cadmia of the present invention, for continuous hot-dipping galvanizing zinc pot
Slagging-off provides one method more ingenious.The present invention lays particular emphasis on the generation reducing zinc pot key position cadmia, utilizes ferrum
At high temperature the dissolubility in zinc liquid becomes big, by adding the zinc liquid of high temperature, V-arrangement district temperature is raised, reduces the precipitation of ferrum
Reduce the formation of slag.V-arrangement district emphasis is considered, because cadmia easily causes slag inclusion and has a strong impact on the quality of steel plate at this.
Accompanying drawing explanation
Accompanying drawing described herein as is used for being further explained the present invention, constitutes the part of the application, and the present invention shows
Meaning property diagram is used for explaining the present invention, is not intended that inappropriate limitation of the present invention, protection scope of the present invention are not limited to following
Schematic diagram.
Fig. 1 is that continuous hot-dipping galvanizing zinc pot carries out steel plate hot zinc immersion process schematic.
Fig. 2 is that the pre-zinc melting pot of external high temperature of the present invention adds that to smoke zinc pump be that continuous hot-dipping galvanizing zinc pot key position heats up
Device schematic diagram.
Fig. 3 is that a kind of continuous hot-dipping galvanizing zinc of zinc pot slag that reduces of the present invention forms the schematic diagram of device.
Fig. 4 is that a kind of continuous hot-dipping galvanizing zinc of zinc pot slag that reduces of the present invention forms the top view of device.
Fig. 5 is not use a kind of to reduce the scattergram of ferrum in continuous hot-dipping galvanizing zinc pot key position cadmia method zinc pot.
Fig. 6 is to use a kind of to reduce after continuous hot-dipping galvanizing zinc pot key position cadmia method the scattergram of ferrum in zinc pot.
Fig. 7 is not use a kind of to reduce the distribution of cadmia in continuous hot-dipping galvanizing zinc pot key position cadmia method zinc pot
Figure.
Fig. 8 is to use a kind of to reduce the distribution of cadmia in zinc pot after continuous hot-dipping galvanizing zinc pot key position cadmia method
Figure.
Fig. 9 be position corresponding to embodiment 1, embodiment 2 and embodiment 3 take the cadmia relative amount that spot check records point
Butut.
Figure 10 is to take a position bowing in continuous hot-dipping galvanizing zinc pot corresponding to embodiment 1, embodiment 2 and embodiment 3
View scattergram.
Drawing reference numeral
[1] continuous hot-dipping galvanizing zinc pot [2] galvanized pot liquid level [3] steel band
[4] sinking roller [5] stabilizing roller [6] derives pipeline
[7] take out zinc pump [8] and mend the pre-zinc melting pot of ingot mouth [9] external high temperature
[10] premelting pot liquid level [11] ferrum [12] cadmia
Detailed description of the invention
Come specifically to introduce the present embodiment below in conjunction with the accompanying drawings to elaborate: the present embodiment with technical solution of the present invention is being
Implement under premise, give detailed embodiment and process, but protection scope of the present invention is not limited to following embodiment.
Shown in Fig. 1, Fig. 2 and Fig. 3, a kind of of the present invention reduces the device bag that continuous hot-dipping galvanizing zinc of zinc pot slag is formed
Include continuous hot-dipping galvanizing zinc pot 1 and the external pump that adds is the device that key position heats up.The external pump that adds is the dress that key position heats up
Put mainly include the pre-zinc melting pot of external high temperature 9 and two take out zinc pump 7, and mend ingot mouth 8.High temperature premelting pot 9 answers body in design
Present: slightly larger in lengthwise dimension, less in width size such that it is able to make from mending the zinc ingot metal energy that ingot mouth 8 supplements
Enough have fully melt intensification enough heat time heating times at length direction.Taking out zinc pump 7 for two should be with certain speed by deriving
Pipeline 6 is to the V-arrangement district (steel band 3 entrance and exit area defined) of continuous hot-dipping galvanizing zinc pot 1, namely on sinking roller 4
Side provides higher than continuous hot-dipping galvanizing zinc pot 1 mean temperature 10 DEG C～the high temperature zinc liquid of 20 DEG C.
Ferrum dissolubility in high temperature zinc liquid is more than the dissolubility in Low Temperature Zn liquid, the thinking reducing cadmia of the present invention
It is to make the key position of continuous hot-dipping galvanizing zinc pot 1 have higher temperature so that this position produces less cadmia, surely
When fixed roll 5 and steel band 1 relative motion, reduce the generation of slag inclusion.Slag inclusion is the major reason causing quality of coating difference.Pass through
The present invention can reduce the generation of cadmia in galvanized pot V-arrangement district well, largely eliminates the slag inclusion shadow to coating
Ring, improve economic benefit.
Reduce, below in conjunction with a kind of, the device that continuous hot-dipping galvanizing zinc of zinc pot slag is formed, done dependence test.Concrete test
It is mainly reflected in taking out the zinc pump 7 quantity in V-arrangement district and the detection on position, to obtain taking out the more preferable arrangement of zinc pump 7.
Embodiment 1: take out zinc pump 7 by two and turn off one of them, open another, detects Continuous Heat after running a period of time
Such as the zinc of six positions of A1-A6 in Figure 10 (zinc liquid level once, the above certain position of sinking roller) in the V-arrangement district of zinc immersion zinc pot 1
Slag content.
Embodiment 2: take out zinc pump by two fully open, detects the V-arrangement of continuous hot-dipping galvanizing zinc pot 1 after running a period of time
The cadmia content of above-mentioned six positions of A1-A6 in district.
Embodiment 3: zinc pump need not be taken out, above-mentioned in detecting the V-arrangement district of continuous hot-dipping galvanizing zinc pot 1 after running a period of time
Six position cadmia content of A1-A6.
The test result of embodiment 1-3 as it is shown in figure 9, as can be known from Fig. 9, uses a kind of minimizing continuous hot-dipping galvanizing zinc pot
The device that cadmia is formed can efficiently reduce the cadmia content in V-arrangement district, also demonstrates a kind of of the present invention and reduces Continuous Heat
The method of zinc immersion zinc pot key position cadmia is feasible.
Claims (3)
1. the method reducing continuous hot-dipping galvanizing zinc pot key position cadmia, it is characterised in that:
The pre-zinc melting pot of an external high temperature (9), the described pre-zinc melting pot of external high temperature it is provided with on continuous hot-dipping galvanizing zinc pot (1) side
(9) zinc liquid temperature is higher than the mean temperature of continuous hot-dipping galvanizing zinc pot (1) interior zinc liquid；
Continuous hot-dipping galvanizing zinc pot (1) has steel band entrance and steel band outlet, and described steel band entrance and steel band go out interruption-forming V-arrangement
District, has sinking roller (4) and stabilizing roller (5) in V-arrangement district；Zinc pump (7) is taken out by arranging two on the pre-zinc melting pot of external high temperature (9)
Zinc liquid is extracted out, and two are taken out zinc pump (7) and are connected with continuous hot-dipping galvanizing zinc pot (1) by two derivation pipelines (6) respectively；
Under two drivings taking out zinc pump (7), by two derivation pipelines (6), by the zinc liquid in pre-for external high temperature zinc melting pot (9)
Synchronous equal amount ground extracts to the V-arrangement district of continuous hot-dipping galvanizing zinc pot (1), the position below zinc liquid level, more than sinking roller (4)；
Under the agitaion of steel band (3), sinking roller (4) and stabilizing roller (5), extraction in the pre-zinc melting pot of external high temperature (9)
Zinc liquid is evenly dispersed in V-arrangement district, and heats whole V-arrangement district, makes ferrum in continuous hot-dipping galvanizing zinc pot (1)
Dissolubility uprises；
The pre-zinc melting pot of external high temperature (9) mends, by arranging, the zinc liquid consumed in the outer pre-zinc melting pot of the high temperature (9) of ingot mouth (8) added body,
ZnAl alloy ingot or pure zinc ingot, and the pre-zinc melting pot of ZnAl alloy ingot or pure zinc ingot high temperature in vitro is added mending ingot mouth (8)
(9) stirred so that the temperature of external high temperature pre-zinc melting pot (9) interior zinc liquid is more uniform after fusing in.
A kind of method reducing continuous hot-dipping galvanizing zinc pot key position cadmia the most as claimed in claim 1, it is characterised in that:
Two derivation pipelines (6) are in V-arrangement district, and sinking roller (4) is above being symmetric, and two derivation pipelines (6) respectively away from
Distance H at sinking roller (4) two ends is 300mm～400mm.
A kind of method reducing continuous hot-dipping galvanizing zinc pot key position cadmia the most as claimed in claim 1, it is characterised in that:
Zinc liquid in the pre-zinc melting pot of external high temperature (9) is heated to exceed continuous hot-dipping galvanizing zinc pot (1) mean temperature 10 DEG C～20 DEG C.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868437A (en) * | 2019-04-17 | 2019-06-11 | 安徽省力通稀土钢缆有限公司 | The plating furnace and application method of a kind of no slag hot dip galvanizing or allumen |
| CN110484846A (en) * | 2019-09-05 | 2019-11-22 | 常州大学 | A kind of improvement continuous hot-dipping zinc-aluminium zinc pond temperature field and the device at branch |
| CN115145330A (en) * | 2022-07-14 | 2022-10-04 | 浙江联鑫板材科技有限公司 | Zinc pot temperature control method and temperature control equipment thereof |
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| CN109868437A (en) * | 2019-04-17 | 2019-06-11 | 安徽省力通稀土钢缆有限公司 | The plating furnace and application method of a kind of no slag hot dip galvanizing or allumen |
| CN110484846A (en) * | 2019-09-05 | 2019-11-22 | 常州大学 | A kind of improvement continuous hot-dipping zinc-aluminium zinc pond temperature field and the device at branch |
| CN115145330A (en) * | 2022-07-14 | 2022-10-04 | 浙江联鑫板材科技有限公司 | Zinc pot temperature control method and temperature control equipment thereof |
| CN115145330B (en) * | 2022-07-14 | 2024-02-27 | 浙江联鑫板材科技有限公司 | Control method and temperature control equipment for zinc pot temperature |
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| CN106191732B (en) | 2018-12-07 |
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