CN108611586A - A kind of power-economizing method for hot-dip galvanized alloy stove - Google Patents
A kind of power-economizing method for hot-dip galvanized alloy stove Download PDFInfo
- Publication number
- CN108611586A CN108611586A CN201611180743.7A CN201611180743A CN108611586A CN 108611586 A CN108611586 A CN 108611586A CN 201611180743 A CN201611180743 A CN 201611180743A CN 108611586 A CN108611586 A CN 108611586A
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- CN
- China
- Prior art keywords
- hot
- soaking zone
- alloying furnace
- dip galvanized
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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 & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses a kind of power-economizing methods for hot-dip galvanized alloy stove, more particularly to control soaking zone temperature in a kind of alloying process to reach the method and apparatus of energy saving purpose, including soaking zone, the outlet of soaking zone is both provided with deflector, deflector is connected with alloying furnace inner wall, and is symmetrically arranged in inside alloying furnace.Meanwhile the size of the deflector specifically proposed is long 2m wide 1m, disregards thickness insulation board.Alloying furnace proposed by the present invention, the exit portion of soaking zone is divided into several segments by the way that multiple deflectors are arranged, stack effect can not only be inhibited in this way, minimize ascending air speed in stove, increase wall surface viscous sublayer thickness, weaken the convection intensity of extraneous cryogenic gas and furnace gas, and large scale vortex can be smashed, large scale is avoided to be vortexed in soaking zone and cooling section intersection so that hot-air seldom enters cooling section.The heat insulation effect that alloying furnace is improved under conditions of not increasing alloying furnace heating power reduces the energy consumption of continuous galvanizing line, energy saving.
Description
Technical field
The present invention relates to hot-dip galvanized steel strip production technical fields, and in particular to a kind of for the energy saving of hot-dip galvanized alloy stove
Method.
Background technology
Alloying furnace is one of the key equipment for producing galvanized steel plain sheet, is made of soaking zone and cooling section two parts, can be incited somebody to action
The strip come out from zinc pot carries out heat preservation re-annealing crystallization.Using the heating side for being arranged symmetrically Resistant heating in furnace wall both sides
Formula makes belt steel surface temperature reach certain alloying temperature then into soaking zone, soaking zone include mobile soaking zone and
Fixed soaking zone；The initial temperature of strip alloying annealing is 460 DEG C of effects, by the heat effect of bringing-up section, reaches 550 DEG C
Enter soaking zone behind left and right, to obtain good galvanneal coating.Cooling section is using the mode of injection cold air to hot-dip steel plate
It is cooled down, it is fluted between reservation safe distance and nozzle between nozzle and steel plate, air-cushion protection can be formed to steel plate and be increased
Add the heat-exchange time of cooling air-flow and strip.
Traditional alloying furnace soaking zone is detached with cooling section, is blown therebetween to strip by extraneous air.Such as Fig. 1 institutes
Show.Lower part heat preservation zone partial heat is dispersed into outside atmosphere simultaneously, and not only alloying reaction rate reduces, and causes a large amount of heat
Loss and energy waste, and reduce the production efficiency and production capacity of continuous galvanizing line.Moreover, the alloying furnace of vertical by
The influence of " stack effect " makes furnace heat easily be dispersed into top upwards from the lower part of soaking zone, finally by soaking zone
It overflows outward in exit.In addition, the temperature in alloying furnace is an important factor for influencing galvanneal coating, the loss of heat makes conjunction
Temperature in aurification stove reduces, and strip coating is uneven, largely reduces the quality of hot-galvanized steel plate surface.
A solution is proposed in the prior art, by improving the resistance wire performance of alloying furnace inside holding section, is carried
Insulating power in blast furnace and effect.The conventional, electric-resistance silk of alloying furnace soaking zone is replaced with the big resistance wire of calorific value, with
Carry out temperature-compensating.The technical solution improves in-furnace temperature using most directly most basic method, meets hot-dip galvanized alloy metaplasia
Production requires.
But the technical solution is unable to ensure strip after soaking zone enters cooling section, the temperature that can meet cooling section is wanted
It asks, significantly impacts the generation of alloying metallographic structure.Strip is in soaking zone hot soak condition, the cooling effect of cooling section
Rate is limited, is put forward higher requirements to the cooling efficiency of nozzle.Meanwhile the increase of resistance wire heat, also improve production line
Electric power causes a large amount of energy consumption.
Invention content
The present invention provides a kind of power-economizing method for hot-dip galvanized alloy stove, it is by changing the air-flow in alloying furnace
Tissue has been broken into the turbulent flow in a zonule in the large scale of soaking zone and cooling section vortex, has reduced cooling section and protect
Heat loss in the heat convection compensation stove of temperature section, improves the alloying temperature in stove, to ensure the matter of strip coating
Amount.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of power-economizing method for hot-dip galvanized alloy stove, it is characterised in that it includes insulation deflector；Described leads
The a length of 2m wide of flowing plate is 1m, disregards thickness.Symmetrically and evenly arrange that four deflectors, water conservancy diversion plate spacing are with the strip direction of motion
0.25m, the distance between deflector and strip are also 0.25m.
It is an advantage of the invention that：By the air current composition in stove, hinders the heat in stove to scatter and disappear outward, make heat in stove
Cycle makes full use of, and improves the temperature in alloying furnace, increases alloying rate, improves the quality of belt steel surface coating.
Description of the drawings
In order to illustrate more clearly of the technical solution in present example, required use in being described below to embodiment
Attached drawing do simple introduction.
Fig. 1 is the structural schematic diagram of existing alloying furnace.
Fig. 2 is the layout structure schematic diagram on galvanization production line using the alloying furnace of the present invention
In figure：1- sinking rollers, 2- air knives, 3- movements bringing-up section, 4- resistance wires device, 5- fixations bringing-up section, 6- strips, 7- are cold
But section, 8- slewing rollers, 9- zinc pots, 10- deflectors, 11- induction heaters.
Specific implementation mode
The present invention provides a kind of power-economizing methods for hot-dip galvanized alloy stove, are protected in alloying furnace as shown in Figure 2
The exit of temperature section, the alloying furnace and existing alloying furnace (as shown in Figure 1) difference lies in：Alloying furnace soaking zone
Deflector is added in exit, and deflector can reduce the stack effect of gas stream in the stove, improve the heat-insulating property of alloying furnace, reduce
The energy consumption of continuous galvanizing line, it is energy saving.
In order to better understand the above technical scheme, being done further to the present invention below in conjunction with the drawings and specific embodiments
Detailed description.
Present application example provides a kind of power-economizing method for hot-dip galvanized alloy stove, is installed at conjunction as shown in Figure 2
Aurification stove fixes bringing-up section 5 exit, the alloying furnace of the alloying furnace and the prior art difference lies in：Alloying furnace exports
Place is symmetrically installed four deflectors 10, is sealed to alloying furnace.
As shown in Fig. 2, in the alloying heat treatment process of strip, deflector is located at alloying furnace exit, residing flat
Face is vertical with the strip direction of motion.Alloying furnace interior air-flow is consistent with the strip direction of motion, deflector can hinder air-flow to
Upper movement, the heat loss that stack effect and eddy current effect may further be inhibited to generate.
In specific implementation process, temperature controlled device compensates the temperature drop of soaking zone in this alloying furnace, prohibits
Low-temperature airflow after only sealing outside stove enters in furnace body, energy saving.
Claims (5)
1. a kind of power-economizing method for hot-dip galvanized alloy stove, including soaking zone, which is characterized in that the outlet of the soaking zone
Symmetrically and evenly it is provided with deflector.
2. a kind of power-economizing method for hot-dip galvanized alloy stove as described in claim 1, which is characterized in that the water conservancy diversion
Plate self-insurance temperature section exit symmetrically and evenly arranges downwards four in alloying furnace inner wall successively with the strip direction of motion.
3. a kind of power-economizing method for hot-dip galvanized alloy stove as claimed in claim 2, which is characterized in that the water conservancy diversion
Spacing between plate is identical.
4. a kind of power-economizing method for hot-dip galvanized alloy stove as claimed in claim 3, which is characterized in that the water conservancy diversion
Spacing between plate is 0.25m, and the distance between strip is also 0.25m.
5. a kind of power-economizing method for hot-dip galvanized alloy stove as claimed in claim 4, which is characterized in that the water conservancy diversion
Plate is the insulation board for disregarding thickness of a length of 2m wide 1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180743.7A CN108611586A (en) | 2016-12-12 | 2016-12-12 | A kind of power-economizing method for hot-dip galvanized alloy stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180743.7A CN108611586A (en) | 2016-12-12 | 2016-12-12 | A kind of power-economizing method for hot-dip galvanized alloy stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108611586A true CN108611586A (en) | 2018-10-02 |
Family
ID=63657767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611180743.7A Pending CN108611586A (en) | 2016-12-12 | 2016-12-12 | A kind of power-economizing method for hot-dip galvanized alloy stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108611586A (en) |
-
2016
- 2016-12-12 CN CN201611180743.7A patent/CN108611586A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Wuhan University of Science and Technology Document name: Notification of Publication of the Application for Invention |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Liya Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Addressee: Wang Liya Document name: Deemed as a notice of withdrawal |
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| DD01 | Delivery of document by public notice |