CN110283972B - Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line - Google Patents

Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line Download PDF

Info

Publication number
CN110283972B
CN110283972B CN201910591631.8A CN201910591631A CN110283972B CN 110283972 B CN110283972 B CN 110283972B CN 201910591631 A CN201910591631 A CN 201910591631A CN 110283972 B CN110283972 B CN 110283972B
Authority
CN
China
Prior art keywords
flat iron
steel strip
galvanized
machine
production line
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.)
Active
Application number
CN201910591631.8A
Other languages
Chinese (zh)
Other versions
CN110283972A (en
Inventor
李树文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Kuntai Machinery Manufacturing Co ltd
Original Assignee
Tianjin Kuntai Machinery Manufacturing Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin Kuntai Machinery Manufacturing Co ltd filed Critical Tianjin Kuntai Machinery Manufacturing Co ltd
Priority to CN201910591631.8A priority Critical patent/CN110283972B/en
Publication of CN110283972A publication Critical patent/CN110283972A/en
Application granted granted Critical
Publication of CN110283972B publication Critical patent/CN110283972B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling
    • 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
    • C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
    • C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
    • C23C2/18—Removing excess of molten coatings from elongated material
    • C23C2/20—Strips; Plates
    • 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
    • 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment

Abstract

The invention discloses a flat iron (multi) hot galvanizing and steel strip hot galvanizing comprehensive continuous production line, which comprises feeding equipment, an annealing reduction furnace, a closed tension regulator, a zinc pot, a lead machine, a cooling and passivation drying device and discharging equipment, wherein the flat iron hot galvanizing and steel strip hot galvanizing takes a steel strip after being washed by acid as a base band, the galvanized flat iron and the galvanized steel strip pass through a feeding device on the whole production line according to the width specification of the galvanized flat iron and the steel strip, then enter an annealing reduction furnace for annealing reduction, then enter a zinc pot for galvanizing, the flat iron and the steel strip all have zinc layers on four sides after being discharged from the zinc pot, the finished product discharging directions of the galvanized flat iron and the galvanized steel strip are opposite, the galvanized flat iron and the galvanized steel strip pass through a cooling and passivating drying device respectively through a guide machine, finally the transverse shear is tracked by a discharging device, the transverse shear is transversely sheared according to the length of a fixed size under the control of a computer, and the transversely sheared flat iron and the galvanized steel strip fall on a conveying roller way. The invention has the advantages that the two production lines are combined, and the investment capital and the risk of an entrepreneur are reduced.

Description

Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line
Technical Field
The invention relates to the technical field of manufacturing of galvanizing equipment, in particular to a comprehensive continuous production line for hot galvanizing of flat iron (multiple strips) and hot galvanizing of steel strips.
Background
Hot galvanizing, also called hot dip galvanizing and hot dip galvanizing, is an effective metal anticorrosion mode and is mainly used for metal structure facilities in various industries. And (3) the steel member after rust removal is immersed into molten zinc at the temperature of about 500 ℃ by hot galvanizing, so that a zinc layer is attached to the surface of the steel member, and the purpose of corrosion prevention is achieved. The hot galvanizing process flow comprises the following steps: pickling a finished product, washing with water, adding a plating assistant solution, drying, plating on a rack, cooling, medicating, cleaning, polishing and hot galvanizing.
In recent years, entity economy has a gliding phenomenon, the cost for building a production line is high, the cost for building a production line independently is less than millions, and more than millions of billions, so that great economic pressure is caused to entrepreneurs or enterprise owners.
Disclosure of Invention
The invention aims to provide a flat iron (multiple) hot galvanizing and steel strip hot galvanizing comprehensive continuous production line, which has the advantages of reducing investment capital and risks of manufacturers and solving the problems of high cost and high economic pressure of independently building a production line by integrating and sharing three major parts, namely flat iron (multiple) hot galvanizing continuous production line and feeding part equipment, annealing reduction part equipment, zinc pot part equipment and the like of the steel strip hot galvanizing continuous production line.
In order to achieve the purpose, the invention provides the following technical scheme: a comprehensive continuous production line for flat iron (multiple) hot galvanizing and steel strip hot galvanizing comprises a feeding device, an annealing reduction furnace, a closed tension adjusting machine, a zinc pot, a machine guiding, a cooling and passivating drying device and a discharging device, wherein the flat iron hot galvanizing and steel strip hot galvanizing takes an acid-washed steel strip as a base band, the steel strip passes through the feeding device according to the width specification of a galvanized flat iron and the steel strip on the whole production line, then enters the annealing reduction furnace for annealing reduction, then enters the zinc pot for galvanizing, the zinc pot improves a sinking roller part, blocking edges are manufactured at two sides of a roller body of the sinking roller, all four sides of the flat iron and the steel strip after being discharged out of the zinc pot are provided with zinc layers, the finished product discharging directions of the galvanized flat iron and the galvanized steel strip are opposite, the galvanized flat iron and the galvanized steel strip respectively pass through the machine guiding, pass through the cooling and passivating drying device, and finally the discharging device tracks a transverse shear and transversely cuts, and the transversely cut galvanized flat iron and the galvanized steel strip fall on a conveying roller way, are conveyed to a packaging position from the conveying roller way after reaching one package, and are packaged and warehoused.
Preferably, the galvanized flat iron travels in the feeding direction after being discharged from the zinc pot, a group of steel structure platforms are erected above the annealing reduction furnace, and a machine for guiding, a cooling and passivating drying device and a blanking device for producing the galvanized flat iron are arranged above the platforms for producing the galvanized flat iron.
Preferably, the galvanized steel strip goes out of the zinc pot and then travels forwards through the cooling rack, and a loading machine, a cooling and passivation drying device and a blanking device for producing the galvanized steel strip are arranged in front of the cooling rack for producing the galvanized steel strip.
Preferably, the feeding equipment consists of an uncoiler, a feeding trolley, a leveling and drawing machine, a cross shearing machine, a vertical roll guiding machine, a welding workbench, a No. 1 clamping and conveying machine, a storage loop, a No. 2 clamping and conveying machine, a double-station longitudinal shearing machine set, a leveling machine, a washing mechanism, a tension detection machine, a drawing machine, a feeding hydraulic station and a feeding end electric control part. The feeding equipment provides a guarantee service of a feeding end for continuous production of the whole production line, and ensures that two rolls of steel strips do not stop when the heads and the tails are welded and do not stop when the slitting unit sets the cutter when flat irons with different specifications are produced.
Preferably, the machine guide consists of a main frame part, a material distributor, a clamping and conveying machine, a material stop mechanism, a material pressing mechanism and a large guide mechanism.
Preferably, the material distribution mechanism, the flat iron cooling device, the water-cooling primary-secondary tank, the material distribution mechanism, the flat iron passivation device, the passivation primary-secondary tank, the material distribution mechanism and the passivation drying device are composed of a drying box and an induced draft fan.
Preferably, the blanking equipment consists of a leveler, a tracking cross shear and a blanking platform.
Preferably, the hydraulic part provides power for the hydraulic action of the whole production line, the electric control part controls the power source of the whole production line, the speed regulation function is provided according to the property of the power source, and the single-action control and the linkage control are adopted to realize two functions according to the production requirement. The linkage function is to input a program into the PLC according to the process function required by the whole production line, then the PLC uniformly controls the process function of each stage of the production line, and the whole continuous production process is completed through the integral cooperation of the machine, the electricity and the liquid.
Compared with the prior art, the invention has the following beneficial effects: a flat iron (multiple) hot galvanizing and steel strip hot galvanizing comprehensive continuous production line combines a flat iron (multiple) hot galvanizing continuous production line and a steel strip hot galvanizing continuous production line together, and two production lines of different products are integrated into one production line, but two products of galvanized flat iron and a galvanized strip can be produced on the production line, so that the economic pressure of an entrepreneur is relieved, the line construction cost is reduced by 1/3, and the investment capital and risk of the entrepreneur are reduced.
Drawings
FIG. 1 is a schematic flow chart of a continuous production line for hot galvanizing of flat iron.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, an embodiment of the present invention: a comprehensive continuous production line for flat iron (multiple) hot galvanizing and steel strip hot galvanizing comprises a feeding device, an annealing reduction furnace, a closed tension adjusting machine, a zinc pot, a machine guiding device, a cooling and passivating drying device and a discharging device, wherein the flat iron hot galvanizing and steel strip hot galvanizing takes an acid-washed steel strip as a base strip, the base strip is longitudinally cut into multiple flat irons and steel strips by a slitting machine set in the feeding device on the whole production line according to the width specification of the galvanized flat irons and steel strips, then the flat irons and the steel strips enter the annealing reduction furnace for annealing reduction process (the process adopts an improved Sendzimir galvanizing method), the tension of the flat irons and the steel strips is adjusted by the closed tension adjusting machine to ensure that the lengths of the flat irons and the steel strips before entering the zinc pot are basically consistent, the flat irons and the steel strips all have zinc layers on four sides after exiting the zinc pot, and the flat irons and the steel strips all have zinc layers on four sides after exiting the zinc pot, the finished product discharging directions of the galvanized flat iron and the galvanized steel strip are opposite, after the flat iron is discharged out of a zinc pot, redundant zinc liquid on the surface of the flat iron is blown off by an air knife part and then is guided and conveyed to a discharging device, namely a leveling machine, by a guide machine, in the process, the galvanized flat iron passes through a material distribution guide mechanism, a cooling device, a material distribution mechanism, a passivation device, a material distribution mechanism and a passivation drying device, the guide machine conveys the flat iron to the discharging leveling machine, and the work of the guide machine is finished. At the moment, a longitudinal shearing unit in the feeding device, a feeding leveling machine and a discharging leveling machine in the discharging device realize a linkage function, the galvanized flat iron is pulled to travel towards the discharging direction at a process speed, the transverse shearing machine is tracked by the discharging device in the traveling process of the galvanized flat iron at the traveling speed of the flat iron, when the length of the flat iron is tracked to reach the fixed length of the finished flat iron, the transverse shearing machine is controlled by a computer to perform a transverse shearing process, the galvanized flat iron after transverse shearing falls on a conveying roller way, the steel belt and the flat iron perform the same process, and the galvanized flat iron is conveyed forwards to a packing position by the conveying roller way after reaching one package and is packed and warehoused. And the tracking transverse shearing machine which finishes the shearing process quickly returns to the original point, continuously tracks the steel belt and the flat iron which move forwards, and repeatedly tracks and shears. The continuous production characteristic of the whole production line is realized.
And further, the galvanized flat iron travels in the feeding direction after being discharged from the zinc pot, a group of steel structure platforms are erected above the annealing reduction furnace, and a machine for guiding, a cooling and passivating drying device and a blanking device for producing the galvanized flat iron are arranged above the platforms and used for producing the galvanized flat iron.
Furthermore, the galvanized steel strip goes out of the zinc pot and then travels forwards through the cooling rack, and a loading machine, a cooling and passivation drying device and a blanking device for producing the galvanized steel strip are arranged in front of the cooling rack for producing the galvanized steel strip.
Further, the feeding equipment comprises an uncoiler, a feeding trolley, a leveling and drawing machine, a cross shearing machine, a vertical roll guiding machine, a welding workbench, a No. 1 clamping and conveying machine, a storage loop, a No. 2 clamping and conveying machine, a double-station longitudinal shearing machine set, a leveling machine, a washing mechanism, a tension detection machine, a drawing machine, a feeding hydraulic station and a feeding end electric control part. And reasonably arranging the mechanical equipment according to the process requirements. Various machines play the role of the feeding device, and ensure the technical functions of the feeding device on the whole production line: namely, the continuous galvanizing production of the flat iron and the steel strip, the online strip division of the base bands of the flat iron and the steel strip and the treatment measures when the flat iron and the steel strip are broken in a furnace area are met.
Furthermore, two sets of the machine-loading, cooling and passivation drying devices and the blanking equipment are arranged and are respectively used for producing the flat iron and the steel strip, and two sets of corresponding electric control devices are arranged to independently control the production of the galvanized flat iron and the production of the galvanized steel strip.
Furthermore, the machine is composed of a main frame part, a material distributor, a clamping and conveying machine, a material stop mechanism, a material pressing mechanism and a large guide mechanism. After the flat iron and the steel strip are discharged from the zinc pot, before the zinc liquid on the surfaces of the flat iron and the steel strip is solidified, each flat iron and the steel strip are isolated by the material distributor and then enter the large guide mechanism, the direction of the flat iron and the steel strip discharged from the zinc pot is the vertical direction, the traveling direction of the flat iron and the steel strip needs to be changed by the large guide mechanism respectively, the traveling direction is changed from the vertical direction to the horizontal direction, the temperature is about 300 degrees at most in the time, operators cannot approach the zinc liquid, the moving directions of the flat iron and the steel strip need to be changed by the material blocking mechanism and the material pressing mechanism, and all mechanical actions are controlled by hydraulic pressure. Because the temperature of the flat iron and the steel strip which are discharged from the zinc pot is very high, the temperature of the large guide roller mechanism is also very high, and because the production line is continuous production, the large guide roller must be cooled, otherwise, the roll surface of the large guide roller can be subjected to zinc dipping after long-time continuous operation, so that the surfaces of the flat iron and the steel strip are rough and impatient. Aiming at the phenomenon, the cooling water tank is designed at the lower part of the roller body of the large guide roller, and the circulating water is used for cooling, so that the lower part of the roller body of the large guide roller is always soaked in water, and the phenomenon of zinc dipping is effectively solved. The pinch machine is used for providing walking power after the flat iron and the steel strip are just discharged out of the zinc pot when the flat iron and the steel strip are produced for the first time or produced again after the pinch machine is stopped.
Further, the cooling and passivation drying device consists of a cooling box, a drying box and a draught fan. The waste gas in the annealing reduction furnace is introduced to the drying box for secondary utilization through the air inducing machine, and the passivated liquid on the surfaces of the galvanized flat iron and the galvanized steel strip after passivation is dried, so that the phenomenon that the surfaces of the galvanized flat iron and the galvanized steel strip are oxidized due to the fact that the storage time is too long and the storage environment is humid is prevented.
Further, the blanking equipment consists of a leveler, a tracking cross shear and a blanking platform. The leveler determines the process speed of the whole production line, the speeds of other devices are automatically adjusted by a computer in coordination with the process speed of the leveler, and the leveler is matched with the feeding leveler to control the tension in a furnace area so as to provide power for the forward movement of the galvanized flat iron and the galvanized steel strip and level the galvanized flat iron and the galvanized steel strip. The length of each group of the blanking platforms is 6 meters, each group of the blanking platforms consists of 6 groups of driving rollers, 5 groups of driven rollers and two groups of lifting mechanisms, and the height of each blanking platform can be adjusted in a lifting mode. The three groups of blanking platforms can independently control the transmission of the driving roller and can also control the transmission of the driving roller simultaneously, and each group of galvanized flat iron and galvanized steel strip product has the requirement of blanking. And the tail end of the first group of blanking platforms is provided with a group of sizing baffles which are matched with a small push plate mechanism of a tracking cross shearing machine to finish the finished product packaging alignment work of the galvanized flat iron and the galvanized steel strip. After the galvanized flat iron and the galvanized steel strip are produced and packaged, the galvanized flat iron and the galvanized steel strip are conveyed to a second group or a third group of blanking platforms by a conveying roller way to be manually packaged and warehoused. The first blanking platform continues to collect the next pack of galvanized flat iron and galvanized steel strip, and the whole process production process has no link of stopping. Continuous production is realized.
Furthermore, the hydraulic part provides power for the mechanical action of the whole production line, the electric control part controls the power source of the whole production line, the speed regulation function is provided according to the property of the power source, and the single-action control and the linkage control are adopted to realize two functions according to the production requirement. The linkage function is to input the program into the PLC according to the process function required by the whole production line, then the PLC controls the process function of each stage of the production line, and the whole production process is completed through the integral cooperation of the machine, the electricity and the liquid.
Example 2
A comprehensive continuous production line for hot galvanizing of flat iron (multiple strips) and steel strips comprises:
the closed tension adjusting machine is arranged at the position before the flat iron and the steel strip enter the zinc pot, and has the following functions: 1. adjusting the tension of the flat irons and the steel belts in the furnace area to ensure that a plurality of flat irons and steel belts synchronously move forwards; 2. the deformation of the flat iron and the steel strip in the furnace area caused by heat radiation is shaped, so that the lengths of the flat iron and the steel strip entering the zinc pot are consistent.
According to the flat iron and the steel strip with different specifications, the furnace zone temperature of each section of the open flame section, the radiation reduction section, the slow cooling section, the fast cooling section and the like in the annealing reduction furnace is controlled, so that the thermal deformation amount of the flat iron and the steel strip in the furnace zone is minimized after the annealing reduction process function is completed.
Example 3
A comprehensive continuous production line for hot galvanizing of flat iron (multiple strips) and steel strips comprises:
when the tracking cross shear finishes the transverse shearing process, the tracking cross shear needs to track the process speed of the flat iron and the steel strip firstly, and the transverse shearing process is started when the tracking speed of the tracking cross shear is consistent with the process speed of the flat iron and the steel strip, so that a problem occurs, and the process speeds of the flat iron and the steel strip with different thickness specifications are different. The thinner the thickness of the flat iron and the steel strip, the faster the process speed, and the thicker the thickness of the flat iron and the steel strip, the slower the process speed. That is to say, the process speeds of the flat iron and the steel strip with different thicknesses are different in the production process, so that the tracking time and the tracking distance of the tracking cross shear are different, and the tracking starting points of the tracking cross shear are consistent but the falling points of the flat iron and the steel strip are different. And the production process requires that the drop points of the flat iron and the steel strip are consistent. Therefore, a large push plate is arranged on a moving body of the tracking cross shear equipment, the position of the large push plate is arranged below a lower knife edge of the cross shear, the position of the large push plate can be adjusted front and back, different positions are adjusted according to different speeds of the galvanized flat iron and the steel strip, the galvanized flat iron and the steel strip with different falling points are pushed to a uniform falling point in the tracking process of the moving body of the tracking cross shear through the different positions of the large push plate, and then the falling products of the galvanized flat iron and the steel strip are pushed to be aligned by the small push plate.
Example 4
A comprehensive continuous production line for hot galvanizing of flat iron (multiple strips) and steel strips comprises:
the temperature of the flat iron and the steel strip after being discharged from the zinc pot is 420-480 ℃ in the production process, the flat iron and the steel strip after being discharged from the zinc pot enter a cooling process and a passivation process through an aging treatment process, the cooling process adopts a circulating water cooling process, the cooling effect of the cooling process can meet the requirement, but the deformation of expansion with heat and contraction with cold is large, and the flat iron and the steel strip can be ensured to be arranged orderly in the forward process only by moving the flat iron and the steel strip forward in a horizontal state as much as possible. Therefore, the circulating water cooling water tank, namely the 'primary-secondary tank', is used for cooling the flat iron and the steel strip, so that the flat iron and the steel strip are always immersed in water in the cooling section and move forward in a horizontal state.
The working principle is as follows: the galvanized flat iron and the galvanized steel strip pass through a feeding device on the whole production line according to the width specification of the galvanized flat iron and the steel strip, then enter an annealing reduction furnace for annealing reduction, then enter a zinc pot for galvanizing, the flat iron and the steel strip all have zinc layers on four sides after being discharged from the zinc pot, the finished product discharging directions of the galvanized flat iron and the galvanized steel strip are opposite, the galvanized flat iron and the galvanized steel strip pass through a cooling and passivating drying device respectively through a guide machine, finally the transverse shear is tracked by a discharging device, the transverse shear is transversely sheared according to the length of a fixed size under the control of a computer, and the transversely sheared flat iron and the galvanized steel strip fall on a conveying roller way.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. A steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line comprises a feeding device, an annealing and reducing furnace, a closed tension adjusting machine, a zinc pot, a machine for guiding, a cooling and passivation drying device and a discharging device, and is characterized in that: the galvanized flat iron and the galvanized steel strip are hot-galvanized by taking an acid-washed steel strip as a base band, passing through a feeding device on the whole production line according to the width specification of the galvanized flat iron and the steel strip, then entering an annealing reduction furnace for annealing reduction, then entering a zinc pot for galvanizing, wherein the zinc pot improves a sinking roller part, two sides of a roller body of the sinking roller are provided with blocking edges, all four sides of the flat iron and the steel strip after exiting from the zinc pot are provided with zinc layers, the finished product discharging directions of the galvanized flat iron and the galvanized steel strip are opposite, the galvanized flat iron and the galvanized steel strip are respectively led through a machine to pass through a cooling and passivating drying device, finally a transverse shearing machine is tracked by a blanking device and transversely sheared according to a fixed length under the control of a computer, the transversely sheared flat iron and the galvanized steel strip fall on a conveying roller bed, are conveyed forward to a packing position by the conveying roller bed after reaching one; after the galvanized flat iron is discharged from a zinc pot, the galvanized flat iron walks in the feeding direction, a group of steel structure platforms are erected above an annealing reduction furnace, and a machine for guiding, a cooling and passivation drying device and a blanking device for producing the galvanized flat iron are arranged above the platforms and used for producing the galvanized flat iron; after the galvanized steel strip is discharged from the zinc pot, the galvanized steel strip travels forwards through a cooling rack, and a tensioner for producing the galvanized steel strip, a cooling and passivating drying device and blanking equipment are arranged in front of the cooling rack and used for producing the galvanized steel strip; tracking the flat iron by a tracking cross shearing machine at the traveling speed of the flat iron, controlling the tracking cross shearing machine to carry out a transverse shearing process by a computer when the length of the flat iron is tracked to reach the fixed-length of the finished flat iron, dropping the galvanized flat iron after transverse shearing on a conveying roller way, and carrying out the same process on a steel belt and the flat iron; the tracking cross shearing machine which finishes the shearing procedure quickly returns to the original point, continuously tracks the steel belt and the flat iron which move forwards, and repeatedly tracks and shears; a large push plate is mounted on a moving body of the tracking cross shear, the position of the large push plate is arranged below a lower knife edge of the cross shear, the position of the large push plate can be adjusted front and back, different positions are adjusted according to different speeds of the galvanized flat iron and the steel strip, the galvanized flat iron and the steel strip with different drop points are pushed to a uniform drop point in the tracking process of the moving body of the tracking cross shear through the different positions of the large push plate, and then the small push plate pushes the galvanized flat iron and the steel strip of the dropped product to be aligned.
2. The comprehensive continuous production line for hot galvanizing of steel strips and hot galvanizing of a plurality of flat irons according to claim 1, is characterized in that: the feeding equipment consists of an uncoiler, a feeding trolley, a leveling and drawing machine, a transverse shearing machine, a vertical roll guiding machine, a welding workbench, a No. 1 pinch machine, a storage loop, a No. 2 pinch machine, a double-station longitudinal shearing machine set, a leveling machine, a washing mechanism, a tension detecting machine, a drawing machine, a feeding hydraulic station and a feeding end electric control part; the feeding equipment provides a guarantee service of a feeding end for continuous production of the whole production line, and ensures that two rolls of steel strips do not stop when the heads and the tails are welded and do not stop when the slitting unit sets the cutter when flat irons with different specifications are produced.
3. The comprehensive continuous production line for hot galvanizing of steel strips and hot galvanizing of a plurality of flat irons according to claim 1, is characterized in that: the machine consists of a main frame part, a material distributor, a clamping and conveying machine, a material stop mechanism, a material pressing mechanism and a large guide mechanism.
4. The comprehensive continuous production line for hot galvanizing of steel strips and hot galvanizing of a plurality of flat irons according to claim 1, is characterized in that: the blanking equipment consists of a leveler, a tracking cross shear and a blanking platform.
5. The comprehensive continuous production line for hot galvanizing of steel strips and hot galvanizing of a plurality of flat irons according to claim 1, is characterized in that: the hydraulic part provides power for the hydraulic action of the whole production line, the electric control part controls a power source of the whole production line, provides a speed regulation function according to the property of the power source, and has two functions of single-action control and linkage control, and is selected according to production requirements; the linkage function is to input a program into the PLC according to the process function required by the whole production line, then the PLC uniformly controls the process function of each stage of the production line, and the whole continuous production process is completed through the integral cooperation of the machine, the electricity and the liquid.
CN201910591631.8A 2019-07-02 2019-07-02 Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line Active CN110283972B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910591631.8A CN110283972B (en) 2019-07-02 2019-07-02 Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910591631.8A CN110283972B (en) 2019-07-02 2019-07-02 Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line

Publications (2)

Publication Number Publication Date
CN110283972A CN110283972A (en) 2019-09-27
CN110283972B true CN110283972B (en) 2021-06-25

Family

ID=68020234

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910591631.8A Active CN110283972B (en) 2019-07-02 2019-07-02 Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line

Country Status (1)

Country Link
CN (1) CN110283972B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111593284A (en) * 2020-06-03 2020-08-28 无锡市方正金属捆带有限公司 Continuous hot-dip galvanizing production method for multiple steel strips
CN111690890A (en) * 2020-06-23 2020-09-22 霸州市万事达科技有限公司 Hot galvanizing packaging steel strip production equipment and production method and hot galvanizing packaging steel strip
TR202016190A2 (en) * 2020-10-12 2021-01-21 Borcelik Celik San Tic A S PROCESS FOR COATING GALVANIZED SURFACES
CN114918613A (en) * 2022-04-22 2022-08-19 中建三局安装工程有限公司 Complete set of digital flat iron processing production line and production method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101734422A (en) * 2009-12-10 2010-06-16 上海宝钢包装钢带有限公司 Production method of zinc coating steel band for packaging
CN201737995U (en) * 2010-06-21 2011-02-09 广东韩江钢板有限公司 Hot-dip galvanizing serial production line
KR20120067145A (en) * 2010-12-15 2012-06-25 주식회사 포스코 Method for manufacturing high strength hot dip galvanized steel sheet having excellent coating adhesion
CN205011821U (en) * 2015-07-31 2016-02-03 中国重型机械研究院股份公司 High -quality ultra -thin hot -galvanize belted steel continuous production line
CN106811711A (en) * 2017-01-18 2017-06-09 北京钢研新冶工程设计有限公司 A kind of continuous hot-dipping galvanizing and dual-purpose production unit and the production technology of UV color coatings
CN207668879U (en) * 2017-12-20 2018-07-31 黄石市金桥铝业有限公司 A kind of aluminium section bar automatic assembly line

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011117572A1 (en) * 2011-01-26 2012-08-16 Salzgitter Flachstahl Gmbh High-strength multiphase steel with excellent forming properties

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101734422A (en) * 2009-12-10 2010-06-16 上海宝钢包装钢带有限公司 Production method of zinc coating steel band for packaging
CN201737995U (en) * 2010-06-21 2011-02-09 广东韩江钢板有限公司 Hot-dip galvanizing serial production line
KR20120067145A (en) * 2010-12-15 2012-06-25 주식회사 포스코 Method for manufacturing high strength hot dip galvanized steel sheet having excellent coating adhesion
CN205011821U (en) * 2015-07-31 2016-02-03 中国重型机械研究院股份公司 High -quality ultra -thin hot -galvanize belted steel continuous production line
CN106811711A (en) * 2017-01-18 2017-06-09 北京钢研新冶工程设计有限公司 A kind of continuous hot-dipping galvanizing and dual-purpose production unit and the production technology of UV color coatings
CN207668879U (en) * 2017-12-20 2018-07-31 黄石市金桥铝业有限公司 A kind of aluminium section bar automatic assembly line

Also Published As

Publication number Publication date
CN110283972A (en) 2019-09-27

Similar Documents

Publication Publication Date Title
CN110283972B (en) Steel strip hot galvanizing and multi-strip-iron hot galvanizing comprehensive continuous production line
CN110527795B (en) Many band irons hot-galvanize continuous production line
CA2194379C (en) Apparatus for producing continuoulsly metallic coil and process therefor
CN108480416B (en) Method for producing non-spangle galvanized sheet based on sheet billet continuous casting and continuous rolling hot base raw material and acid pickling galvanizing continuous production line
CA2221423C (en) Hot-rolling mill
RU2114708C1 (en) Process and plant for casting intermediate-thickness slabs and slab receiver
CN103480647B (en) A kind of device and production method thereof of producing reinforcing bar without heating low temperature Direct Rolling small billet
CN101376212B (en) Cold rolling serial production line of product steel coil produced from white coil
CN102172834B (en) Production line and process for continuous rolling of single rack
WO1994029040A1 (en) Method for continuous hot rolling of metal pieces, and apparatus and parts therefor
CN106244967B (en) Cold-rolling of steel plate coating integration produces unit and its production technology
CN103313812A (en) Energy- and yield-optimized method and plant for producing hot steel strip
CN108941196B (en) Method for continuously rolling small-specification bar by using 200 large-section square billet
US5412966A (en) Push-pull pickle line
CN108480417A (en) Continuous producing line, which is plated, based on thin slab continuous casting and rolling hot radical raw material and acid produces method of the 600g zinc layers without zinc flower hot-galvanized plate
CN112139282A (en) Strip steel coiling system, high-strength steel coiling method and high-strength steel production line
CN111112328A (en) Energy-saving device and method for producing long steel by calendering smelting waste heat
KR20110044317A (en) Method and device for cooling a leader or band of a metal strand in a hot-rolling mill
CN100348363C (en) Manufacturing device for high strength bailing band
RU2481903C2 (en) Method of making metal strips and production line to this end
CN104451496A (en) Steel coating device and production method thereof
CN212426153U (en) Hot galvanizing packing steel strip production equipment and hot galvanizing packing steel strip
CN203648986U (en) Device for producing reinforcing steel bars through heating-free low-temperature direct rolling of billets
CN216404505U (en) Many band irons hot-galvanize continuous production line
CN211990254U (en) Energy-saving device for producing long steel by calendering smelting waste heat

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant