CN112593176B - Fog control equipment for hot-dip galvanized strip steel small spangle production and control system thereof - Google Patents
Fog control equipment for hot-dip galvanized strip steel small spangle production and control system thereof Download PDFInfo
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- CN112593176B CN112593176B CN202011460773.XA CN202011460773A CN112593176B CN 112593176 B CN112593176 B CN 112593176B CN 202011460773 A CN202011460773 A CN 202011460773A CN 112593176 B CN112593176 B CN 112593176B
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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
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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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Abstract
The invention discloses a fog control device for producing small spangles of hot-dip galvanized steel strips, which is particularly suitable for controlling the spangles quality of a continuous hot-dip galvanizing production line. The device has the function of adjusting the solidification positions of different spangles, can monitor the production process data in real time through an intelligent process control system aiming at the plates with different thicknesses and different zinc layer weights, and automatically adjusts related parameters, thereby realizing the accurate positioning of the solidification positions of the spangles of different galvanized plates. The equipment has a fog control function, controls the temperature and the spray granularity by adjusting the flow, and controls the spray opening degree and the spray angle by adopting the gap adjustment panel and the panel driving mechanism, thereby greatly limiting the disordered impact of the spray and the average granularity of the spray, solving the problems of moire, white spot and the like generated in the conventional spray process, and being the automatic operation of double control of the size and the quality of the hot galvanizing zinc flower.
Description
Technical Field
The invention belongs to the technical field of hot-dip galvanized strip steel small spangle production, and relates to fog control equipment and a fog control system for the hot-dip galvanized strip steel small spangle production.
Background
Hot galvanizing is one of the most effective methods for preventing atmospheric corrosion of steel, and compared with other metal corrosion prevention methods, the method has the advantages of incomparable and unique technology in the aspects of electrochemical protection of a coating, coating compactness, coating durability, coating maintenance-free property, coating-matrix binding force, coating economy, adaptability of a hot galvanizing process to the shape and the size of a steel piece and high production efficiency. In long-term use, the cost of hot galvanizing is far lower than that of paint, and the hot galvanizing is widely applied to electric power, traffic, communication, infrastructure and the like. Therefore, since 2000 years, many large-scale steel mills in China have built a plurality of continuous hot galvanizing plants in large and medium-scale steel mills such as saddle steel, first steel, Handover steel and the like. However, taking the 2# hot-dip galvanizing line for continuous production of the Handrail with the annual output of 200 ten thousand tons as an example, the cold-rolled galvanized strip steel production is developing towards the directions of high performance, high quality and low cost along with the continuous improvement of the quality of cold-rolled products by the market. The product has various problems of zinc flow lines, spangle size, edge spangle uniformity control and the like, and scholars at home and abroad in the field of hot galvanizing spangle control carry out various researches.
Patent No. 201610686451.4 Zhang, et al, discloses that spangle control of hot galvanizing large spangle products with different strip steel thicknesses can be realized by reasonably adjusting technological parameters such as raw material surface roughness, strip steel zinc pot temperature, antimony content and aluminum content in zinc liquid, zinc liquid temperature, high span temperature, unit speed, etc., so that the produced large spangle products have beautiful appearance and clear spangle outline. The patent realizes spangle quality control by adjusting various process parameters of the production line, and the produced product is a large spangle product and cannot produce a small spangle product.
The Chen political and other people of patent No. 200910142858.0 Fujian Kai Jing Steel development Co., Ltd, introduced a hot dip galvanized surface spangle morphology control, the steel plate was polished after being sprayed by a small spangle machine, wherein the small spangle nozzle diameter was 1.5-3mm, the water pressure was 0.1-0.4MPa, the air pressure was 0.4-0.5MPa, the nozzle distance from the air knife was 400-600mm, and the cooling water temperature was 30-50 ℃. The patent can only realize the preparation of small spangles to a certain extent, but cannot fundamentally solve the problems of uneven droplet size, spray angle and convection through temperature control.
Disclosure of Invention
The invention aims to provide a fog control device for producing small spangles of hot-dip galvanized steel strips, which can control the spray flow, the spray direction, the spray granularity and the spray interval so as to solve the problems of uneven droplet size, spray angle and convection.
The invention provides a fog control device for producing small spangles of hot-dip galvanized strip steel, which is used for improving the spangles quality of a continuous hot-dip galvanizing production line and comprises the following components: the device comprises a mobile platform, a mounting frame body and a fog control device; the fog control device is arranged on the mounting frame body and can vertically move on the mounting frame body; the fog control device comprises: the device comprises a left fog control spraying box, a right fog control spraying box, a fog control spraying box connecting frame, an interval adjusting structure, a gear transmission lifting structure, a lifting structure support and two sets of spraying medium pipeline groups;
the distance adjusting structure is fixed at the front end of the mist control spraying box connecting frame, and the left mist control spraying box and the right mist control spraying box are fixed on the distance adjusting structure and can adjust the distance between the left mist control spraying box and the right mist control spraying box; each set of spraying medium pipeline group consists of a plurality of gas pipelines and a plurality of medium pipelines, all the gas pipelines are connected with a gas source pump, all the medium pipelines are connected with a medium source pump, and the gas pipelines and the medium pipelines are provided with flow regulating valves and switch valves; left side accuse fog spray box and right side accuse fog spray box structure are the same, include: the device comprises a box body, a gap adjusting panel, a plurality of rows of nozzles and a back plate; the box body is fixed on the interval adjusting structure, the air inlet of each row of nozzles is connected with 1 gas pipeline, and the liquid inlet is connected with 1 medium pipeline; a plurality of gas pipelines and a plurality of medium pipelines of the spraying medium pipeline group are fixed in the box body through a back plate, a plurality of spraying grooves with different widths are arranged on the gap adjusting panel, and the gap adjusting panel is covered on the box body and is arranged on the front side of the plurality of rows of nozzles; two sides in the box body are respectively provided with a panel driving mechanism, and the panel driving mechanisms are connected with the gap adjusting panel to push the gap adjusting panel to move up and down; the two sets of spraying medium pipeline groups respectively convey gas and an atomizing medium to nozzles in the left mist control spraying box and the right mist control spraying box; the lifting structure support is fixed at the top of the mist control spraying box connecting frame, the gear transmission lifting structure is fixed on the lifting structure support and comprises a first speed reduction motor and two driving gears symmetrically arranged, and the vertical movement of the mist control device is realized by driving the driving gears to vertically lift on racks on the mounting frame body through the first speed reduction motor.
In the mist control equipment for producing the small spangles of the hot-dip galvanized steel strip, the panel driving mechanism comprises: the device comprises a first cylinder, a push plate, a push rod and a connecting plate; the first air cylinder is fixed in the box body, a piston rod of the first air cylinder is connected with the push plate, the push plate is connected with the top end of the push rod, a connecting plate is welded at the bottom end of the push rod, and the connecting plate is connected with the gap adjusting panel; the gap adjusting panel is pushed to move up and down by panel driving mechanisms on two sides in the box body, and then the opening degree and the angle of the spraying are controlled.
In the mist control equipment for the production of the small spangles of the hot-dip galvanized strip steel, the mist control equipment for the production of the small spangles is also provided with a mist recovery structure, and the mist recovery structure comprises: the base plate is retrieved in fan, exhaust chamber and two sprays, the exhaust chamber is installed on the elevation structure support, and the exhaust chamber is connected with the fan and is connected left accuse fog spray box and right accuse fog spray box through two exhaust tubes, and the base plate is retrieved in the spray and installs respectively in the bottom of left accuse fog spray box and right accuse fog spray box.
In the mist control equipment for producing the small spangles of the hot-dip galvanized steel strip, the distance adjusting structure comprises: the second speed reducing motor, the left and right spiral trapezoidal screw rods and the two linear guide rails are arranged on the left and right spiral trapezoidal screw rods; the two linear guide rails are arranged at the front end of the connecting frame of the mist control spraying box in parallel, the two ends of the linear guide rails are respectively provided with a sliding block, and the left mist control spraying box and the right mist control spraying box are respectively fixedly connected with the sliding blocks at the two ends of the two linear guide rails; the left-handed and right-handed trapezoidal lead screws are arranged between the two linear guide rails, two nuts are arranged on the left-handed and right-handed trapezoidal lead screws, the two nuts are fixedly connected with the left mist control spraying box and the right mist control spraying box respectively, the second speed reducing motor is fixed in the middle of the mist control spraying box connecting frame, the left-handed and right-handed trapezoidal lead screws are driven by the second speed reducing motor to rotate, and the two nuts move oppositely or oppositely on the left-handed and right-handed trapezoidal lead screws to adjust the distance between the left mist control spraying box and the right mist control spraying box.
In the fog control equipment for producing the small spangles of the hot-dip galvanized steel strip, the gear transmission lifting structure comprises: the device comprises two driving gears, two supporting rollers, a motor transmission shaft, a driving device fixing frame and a first speed reducing motor;
the driving device fixing frame is arranged on the lifting structure support and comprises two fixing frames and two connecting rods, and the two fixing frames are fixedly connected through the two connecting rods; the two ends of the motor transmission shaft are respectively connected with the corresponding fixed frames in a rotating mode, a first speed reduction motor is arranged on the outer side of one fixed frame and is connected with one end of the motor transmission shaft, two driving gears are respectively arranged in the two fixed frames and are fixed at the two ends of the motor transmission shaft, two supporting rollers are respectively arranged in the corresponding fixed frames and are opposite to the driving gears, two racks which are arranged in parallel on the installation frame body penetrate through the corresponding fixed frames, the racks are located between the driving gears and the supporting rollers and are meshed with the driving gears, the first speed reduction motor drives the motor transmission shaft to drive the driving gears to vertically lift on the racks on the installation frame body, and then the mist control device is driven to vertically move on the installation frame body.
In the fog control equipment for the hot-dip galvanized steel strip small spangle production, the opposite side walls of two fixed frames are respectively provided with an anti-falling safety device, and a driven gear of the anti-falling safety device is meshed with a rack; the two fixing frames are provided with a second cylinder and a fixing seat, a piston rod of the second cylinder is connected with the middle of the connecting rod, the rear end of the connecting rod is rotatably connected with the fixing seat, and the front end of the connecting rod is pressed against the driving wheel under the pushing of the piston rod of the second cylinder, so that the driving gear and the driven gear are locked with the rack.
In the hot-dip galvanizing strip steel small spangle production mist control equipment, two sides of a connecting frame of a mist control spraying box are respectively provided with a holding structure, each holding structure comprises a holding bracket and 4 support wheels which are oppositely arranged in pairs, the holding brackets are fixed on the connecting frame of the mist control spraying box, and the 4 support wheels are arranged in the holding brackets; the racks on the mounting frame body penetrate through the 4 supporting wheels which are arranged oppositely in pairs.
The invention also provides a control system of the fog control equipment for the production of the hot-dip galvanized strip steel small spangles, which comprises the following components: the system comprises a main control PLC, an HMI human-computer interface, a main console remote I/O station, a first reducing motor frequency converter, a second reducing motor frequency converter, a fan frequency converter and an industrial Ethernet switch; the main control PLC and the HMI human-computer interface are connected to a control system of the continuous hot galvanizing production line through an industrial Ethernet switch, and the main control PLC is respectively connected with a main console remote I/O station, a flow regulating valve, a switch valve, a first speed reducing motor frequency converter, a second speed reducing motor frequency converter and a fan frequency converter; the first speed reducing motor frequency converter is connected with a first speed reducing motor, the second speed reducing motor frequency converter is connected with a second speed reducing motor, and the fan frequency converter is connected with a fan motor; and the main control PLC controls the flow regulating valve, the switch valve, the first reducing motor frequency converter, the second reducing motor frequency converter and the fan frequency converter according to production process data of the continuous hot galvanizing production line so as to control the spraying position, the spraying granularity, the spraying width, the spraying flow and the spraying opening degree and angle.
A fog control device for hot-dip galvanized steel strip small spangles production can control spray flow, spray direction, spray granularity and spray distance so as to solve the problems of uneven droplet size, spray angle and convection. The fog control equipment can select and replace the atomizing medium according to the performance requirements of different spangles granularity and spangles components. The spray gas flow and the medium flow can be adjusted according to the width of the plate, the size requirement of zinc coating spangles and the thickness of the coating, and then the spray flow is controlled. The front side of a nozzle in the mist control spray box is covered with a gap adjusting panel, the gap adjusting panel is provided with a plurality of spray notches with different widths, the nozzle is just opposite to the spray notches with different widths by adjusting the gap adjusting panel up and down, the spray direction (the spray opening degree and the spray angle) can be controlled, and the control range of the blowing angle is-0.5-0 degrees. The spray particle size can be controlled by controlling the spray air pressure and the medium pressure, and 20-60 mu m of spray particles are realized by matching with a linear spray tank; 2-6 rows of spraying are arranged in the spraying box controlled by the spraying distance control finger, 1-6 rows are simultaneously opened according to different spraying requirements, the spraying width of each row is different, and spraying groups with different widths are opened according to the plate width.
Drawings
FIG. 1 is an overall schematic diagram of a fog control device for the production of small spangles of hot-dip galvanized steel strips;
FIG. 2 is a schematic structural view of a mist control device;
FIG. 3 is a schematic view of the interior of the left control spray box;
FIG. 4 is a schematic view of the structure of the panel driving mechanism;
FIG. 5 is a schematic view of a gap adjustment panel;
FIG. 6 is a schematic view of a spacing adjustment structure;
FIG. 7 is a schematic view of a geared lift arrangement;
FIG. 8 is an internal schematic view of a fixed frame of the geared lift arrangement;
FIG. 9 is a schematic view of a clasping structure;
FIG. 10 is a schematic view of a mist control spray box attachment bracket;
FIG. 11 is a schematic diagram of a control system of a mist control device for the production of small spangles of hot-dip galvanized steel strips according to the invention;
in the figure: 1-an air extraction box, 2-a lifting structure support, 3-a left fog control spray box, 4-a right fog control spray box, 5-a spray box connecting frame, 6-a spacing adjusting structure, 7-a gear transmission lifting structure, 8-a spray medium pipeline group, 9-a spray recovery chassis, 10-an air extraction pipe, 11-a holding structure, 31-a box body, 32-a clearance adjusting panel, 33-a nozzle, 34-a back plate, 35-a first air cylinder, 36-a push plate, 37-a push rod, 38-a connecting plate, 39-a spray groove, 40-a guide rail, 41-a guide block, 51-a spray recovery chassis mounting position, 52-a spray medium pipeline group mounting position, 53-a spacing adjusting structure mounting position, 54-a holding structure mounting position, 61-a second speed reducing motor, 62-left and right spiral trapezoidal screw rods, 63-linear slide rails, 64-nuts, 65-sliding blocks, 71-first speed reduction motors, 72-driving gears, 73-supporting rollers, 74-motor transmission shafts, 75-fixed frames, 76-connecting rods, 77-anti-falling safeners, 78-driven gears, 79-second air cylinders, 80-connecting rods, 81-fixed seats, 111-holding brackets, 112-supporting wheels, 100-fog control devices, 200-mounting frames and 300-moving platforms.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, fig. 5 and fig. 10, the fog control device for producing small spangles of hot-dip galvanized steel strips, which is provided by the invention, is used for improving the spangles quality of a continuous hot-dip galvanizing production line and comprises: a mobile platform 300, a mounting frame body 200 and a fog control device 100. The installation frame body 200 is fixed on the mobile platform 300 and can horizontally move along with the mobile platform 300, and the fog control device 100 is arranged on the installation frame body 200 and can vertically move on the installation frame body 200.
The mist control device 100 includes: the device comprises a left mist control spraying box 3, a right mist control spraying box 4, a mist control spraying box connecting frame 5, an interval adjusting structure 6, a gear transmission lifting structure 7, a lifting structure support 2 and two sets of spraying medium pipeline groups 8. The spray box connecting frame 5 is provided with a spray recovery chassis mounting position 51, a spray medium pipeline group mounting position 52, an interval adjusting structure mounting position 53 and a holding structure mounting position 54.
The distance adjusting structure 6 is fixed at the front end of the mist control spraying box connecting frame 5, and the left mist control spraying box 3 and the right mist control spraying box 4 are fixed on the distance adjusting structure 6 and are adjustable in distance. Each set of spraying medium pipeline group 8 consists of a plurality of gas pipelines and a plurality of medium pipelines, all the gas pipelines are connected with a gas source pump, all the medium pipelines are connected with a medium source pump, and the gas pipelines and the medium pipelines are provided with flow regulating valves and switch valves. Left side accuse fog spray box 3 and right side accuse fog spray box 4 structure is the same, includes: a case 31, a gap-adjusting panel 32, a plurality of rows of nozzles 33, and a back plate 34. The box 31 is fixed on the interval adjusting structure 6, the air inlet of each row of nozzles 33 is connected with 1 gas pipeline, and the liquid inlet is connected with 1 medium pipeline. A plurality of gas pipelines and a plurality of medium pipelines of the spraying medium pipeline group 8 are fixed in the box body 31 through the back plate 34, a plurality of spraying grooves 39 with different opening widths are arranged on the gap adjusting panel 32, and the opening widths of the spraying grooves 39 are 0.05-0.2 mm. The gap adjustment panel 32 is covered on the case 31 and is installed in front of the rows of nozzles 33. Two sides in the box body 31 are respectively provided with a panel driving mechanism, and the panel driving mechanisms are connected with the gap adjusting panel 32 to push the gap adjusting panel 32 to move up and down. The two sets of spraying medium pipeline groups 8 respectively convey gas and the atomizing medium to the nozzles 33 in the left mist control spraying box 3 and the right mist control spraying box 4. Lifting structure support 2 is fixed at accuse fog spray box link 5 top, gear drive lifting structure 7 is fixed on lifting structure support 2, gear drive lifting structure 7 includes two driving gears 72 that first gear motor 71 and symmetry set up, and the vertical migration that realizes accuse fog device 100 through the vertical lift motion on the rack of first gear motor 71 drive driving gear 72 on installation support body 200.
As shown in fig. 4, the panel driving mechanism includes: a first cylinder 35, a push plate 36, a push rod 37 and a connecting plate 38. The first air cylinder 35 is fixed in the box body 31, a piston rod of the first air cylinder is connected with the push plate 36, the push plate 36 is connected with the top end of the push rod 37, the bottom end of the push rod 37 is welded with the connecting plate 38, and the connecting plate 38 is connected with the gap adjusting panel 32. The box body 31 is internally provided with a guide rail 40, the guide rail 40 is provided with a guide block 41, the gap adjusting panel 32 is connected with the guide block 41, and the gap adjusting panel 32 is pushed to move up and down along the guide rail 40 by panel driving mechanisms on two sides in the box body so as to control the opening degree and the angle of the spraying.
Little spangle production accuse fog equipment still is equipped with the spraying and retrieves the structure, the spraying is retrieved the structure and is included: the device comprises a fan, an air extraction box 1 and two spraying recovery chassis 9, wherein the air extraction box 1 is installed on a lifting structure support 2, the air extraction box 1 is connected with the fan and is connected with a left fog control spraying box 3 and a right fog control spraying box 4 through two air extraction pipes 10, and the spraying recovery chassis 9 is respectively installed at the bottoms of the left fog control spraying box 3 and the right fog control spraying box 4.
As shown in fig. 6, the pitch adjustment structure 6 includes: a second speed reducing motor 61, a left-right spiral trapezoidal screw 62 and two linear guide rails 63. The two linear guide rails 63 are arranged at the front end of the spray box connecting frame 5 in parallel, the two ends of the linear guide rails 63 are respectively provided with a sliding block 65, and the left mist control spray box 3 and the right mist control spray box 4 are respectively fixedly connected with the sliding blocks 65 at the two ends of the two linear guide rails 63. In specific implementation, each end of the linear guide 63 is provided with 2 sliders 65. The left and right spiral trapezoidal lead screws 62 are arranged between the two linear guide rails 63, two nuts 64 are arranged on the left and right spiral trapezoidal lead screws 62, and the two nuts 64 are fixedly connected with the left mist control spraying box 3 and the right mist control spraying box 4 respectively. The second speed reducing motor 61 is fixed in the middle of the spray box connecting frame 5, the second speed reducing motor 61 drives the left and right spiral trapezoidal lead screws 62 to rotate, and the two nuts 64 move oppositely or oppositely on the left and right spiral trapezoidal lead screws 62 to further adjust the distance between the left spray control spraying box 3 and the right spray control spraying box 4. The adjusting range is 300-700 mm.
As shown in fig. 7, the gear transmission lifting structure 7 includes: a first speed reducing motor 71, two driving gears 72, two supporting rollers 73, a motor transmission shaft 74 and a driving device fixing frame;
the drive device fixing frame is mounted on the lifting structure support 2, and comprises two fixing frames 75 and two connecting rods 76, and the two fixing frames 75 are fixedly connected through the two connecting rods 76. The two ends of the motor transmission shaft 74 are rotatably connected with the corresponding fixed frames 75 respectively, the first speed reduction motor 71 is arranged on the outer side of one fixed frame 75 and connected with one end of the motor transmission shaft 74, the two driving gears 72 are arranged in the two fixed frames 75 respectively and fixed at the two ends of the motor transmission shaft 74, the two supporting rollers 73 are arranged in the corresponding fixed frames 75 respectively and are opposite to the driving gears 72, two parallel racks on the installation frame body 200 penetrate through the corresponding fixed frames 75, the racks are positioned between the driving gears 72 and the supporting rollers 73 and are meshed with the driving gears 72, the first speed reduction motor 71 drives the motor transmission shaft 74 to drive the driving gears 72 to vertically lift on the racks on the installation frame body 200, and then the mist control device 100 is driven to vertically move on the installation frame body 200. So that the position of the zinc liquid solidification line of different hot-galvanized plates can be tracked.
As shown in fig. 8 and 9, two opposite side walls of the fixed frames 75 are provided with a safety catch 77, respectively, and a driven gear 78 of the safety catch 77 is engaged with the rack. The two fixing frames 75 are provided with a second cylinder 79 and a fixing seat 81, a piston rod of the second cylinder is connected with the middle of the connecting rod 80, the rear end of the connecting rod 80 is rotatably connected with the fixing seat 81, and the front end of the connecting rod 80 is pressed against the driving wheel 72 under the pushing of the piston rod of the second cylinder, so that the driving wheel 72 and the driven gear 78 are locked with the rack.
As shown in fig. 9, two sides of the spray box connecting frame 5 are respectively provided with a clasping structure 11, the clasping structure comprises a clasping support 111 and 4 support wheels 112 arranged oppositely, the clasping support 111 is fixed on the spray box connecting frame 5, and the 4 support wheels 112 are arranged in the clasping support 11; the rack on the mounting frame 200 passes through the 4 support wheels 112 arranged opposite to each other.
The invention relates to a fog control device for hot-dip galvanized strip steel small spangles production, which comprises the following specific working processes:
first, position adjustment
1. And (3) adjusting the position of the moving platform, as shown in fig. 1, driving a track motor of the moving platform, and adjusting the whole equipment to the position of the hot galvanizing plate.
2. And (3) position adjustment of the mist control device: the lifting frequency converter of the fog control device is manually or automatically controlled, the lifting structure 7 is driven by the driving gear to move up and down, the forward blowing positions of the left fog control spraying box and the right fog control spraying box are adjusted to the area of the zinc flower solidification line according to the hot galvanizing process condition parameters, and the position area can be displayed by the control system in real time.
3. And (3) adjusting the distance between the left spray box and the right spray box: look galvanizing coat thickness, thick parameter influence of board and rotate through the trapezoidal lead screw of a gear motor drive left and right hand, linear guide direction is adjusted and is adjusted the interval of controlling fog spray box and controlling the fog spray box on the left side, and the control range is 300 ~ 700 mm.
Secondly, process adjustment
1. Controlling the spray flow, the spray direction, the spray granularity and the spray distance: the atomizing medium can be selected and replaced according to the requirements of different spangle granularities and spangle component performances. The spray gas flow and the medium flow can be adjusted according to the width of the plate, the size requirement of zinc coating spangles and the thickness of the coating, and then the spray flow is controlled. The gap adjusting panel is provided with a plurality of spraying grooves with opening widths of 0.05-0.2 mm, the nozzles are opposite to the spraying grooves with different widths by adjusting the gap adjusting panel up and down, the spraying directions (spraying opening degrees and angles) can be controlled, and the control range of the blowing angle is-0.5-0 degrees. The spray particle size can be controlled by controlling the pressure of the spray air and the pressure of the medium, and the spray particles with the particle size of 20-60 mu m can be sprayed by matching with a linear spray tank. 2-6 rows of nozzles can be arranged in each mist control spray box, 1-6 rows of nozzles are simultaneously opened according to different spraying requirements, the spraying width of each row is different, and spraying groups with different widths are opened according to the width of a plate.
2. Atomization recovery regulation: set up fan, exhaust chamber and two exhaust tubes, control the vapor and the non-vapourized fog droplet in the fog spray tank to left side and right side through the fan and suction to collect after the heat exchanger condensation, avoid gathering a large amount of vapor and fog droplet around belted steel and the equipment, reduce the spraying to the influence of environment, reduce the corruption to peripheral equipment.
As shown in fig. 9, the invention further provides a control system of the mist control device for the production of the small spangles of the hot-dip galvanized steel strip, which is used for controlling the mist control device for the production of the small spangles of the hot-dip galvanized steel strip. The control system includes: the system comprises a main control PLC, an HMI human-computer interface, a main console remote I/O station, a first speed reduction motor frequency converter, a second speed reduction motor frequency converter, a spraying motor frequency converter, a fan frequency converter and an industrial Ethernet switch; the master control PLC and the HMI are connected to a control system of the continuous hot galvanizing production line through an industrial Ethernet switch, and the master control PLC is respectively connected with a remote I/O station of a master console, a flow regulating valve, a switch valve, a first speed reducing motor frequency converter, a second speed reducing motor frequency converter, a spraying motor frequency converter and a fan frequency converter; the first speed reducing motor frequency converter is connected with a first speed reducing motor, the second speed reducing motor frequency converter is connected with a second speed reducing motor, the spraying motor frequency converter is connected with a spraying motor, and the fan frequency converter is connected with a fan motor; and the master control PLC controls the control valve group, the first speed reducing motor frequency converter, the second speed reducing motor frequency converter, the spraying motor frequency converter and the fan frequency converter according to the production process data of the continuous hot galvanizing production line so as to control the spraying position, the spraying granularity, the spraying width and the spraying flow. Meanwhile, the data of the small spangle production spraying process can be displayed in real time through an HMI human-machine interface, and the control parameters for displaying the small spangle production spraying process are adjusted through a main console remote I/O station.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined by the appended claims.
Claims (8)
1. The utility model provides a little spangle production fog control equipment of hot dip galvanizing belted steel, its characterized in that for continuous hot dip galvanizing line spangle quality improvement, include: the device comprises a mobile platform, a mounting frame body and a fog control device; the fog control device is arranged on the mounting frame body and can vertically move on the mounting frame body; the fog control device comprises: the device comprises a left fog control spraying box, a right fog control spraying box, a fog control spraying box connecting frame, an interval adjusting structure, a gear transmission lifting structure, a lifting structure support and two sets of spraying medium pipeline groups;
the distance adjusting structure is fixed at the front end of the mist control spraying box connecting frame, and the left mist control spraying box and the right mist control spraying box are fixed on the distance adjusting structure and can adjust the distance between the left mist control spraying box and the right mist control spraying box; each set of spraying medium pipeline group consists of a plurality of gas pipelines and a plurality of medium pipelines, all the gas pipelines are connected with a gas source pump, all the medium pipelines are connected with a medium source pump, and the gas pipelines and the medium pipelines are provided with flow regulating valves and switch valves; left side accuse fog spray box and right side accuse fog spray box structure are the same, include: the device comprises a box body, a gap adjusting panel, a plurality of rows of nozzles and a back plate; the box body is fixed on the interval adjusting structure, the air inlet of each row of nozzles is connected with 1 gas pipeline, and the liquid inlet is connected with 1 medium pipeline; a plurality of gas pipelines and a plurality of medium pipelines of the spraying medium pipeline group are fixed in the box body through a back plate, a plurality of spraying grooves with different opening widths are arranged on the gap adjusting panel, and the gap adjusting panel is covered on the box body and is arranged on the front side of the plurality of rows of nozzles; two sides in the box body are respectively provided with a panel driving mechanism, and the panel driving mechanisms are connected with the gap adjusting panel to push the gap adjusting panel to move up and down; the two sets of spraying medium pipeline groups respectively convey gas and an atomizing medium to nozzles in the left mist control spraying box and the right mist control spraying box; the lifting structure support is fixed at the top of the mist control spraying box connecting frame, the gear transmission lifting structure is fixed on the lifting structure support and comprises a first speed reduction motor and two driving gears symmetrically arranged, and the vertical movement of the mist control device is realized by driving the driving gears to vertically lift on racks on the mounting frame body through the first speed reduction motor.
2. The apparatus of claim 1, wherein the panel drive mechanism comprises: the device comprises a first cylinder, a push plate, a push rod and a connecting plate; the first air cylinder is fixed in the box body, a piston rod of the first air cylinder is connected with the push plate, the push plate is connected with the top end of the push rod, a connecting plate is welded at the bottom end of the push rod, and the connecting plate is connected with the gap adjusting panel; the gap adjusting panel is pushed to move up and down by panel driving mechanisms on two sides in the box body, and then the opening degree and the angle of the spraying are controlled.
3. The fog control equipment for the small spangle production of hot-dip galvanized steel strip according to claim 1, wherein the fog control equipment for the small spangle production is further provided with a spray recovery structure, and the spray recovery structure comprises: the base plate is retrieved in fan, exhaust chamber and two sprays, the exhaust chamber is installed on the elevation structure support, and the exhaust chamber is connected with the fan and is connected left accuse fog spray box and right accuse fog spray box through two exhaust tubes, and the base plate is retrieved in the spray and installs respectively in the bottom of left accuse fog spray box and right accuse fog spray box.
4. The hot-dip galvanized steel strip small spangle production mist control equipment according to claim 1, wherein the spacing adjustment structure comprises: the second speed reducing motor, the left and right spiral trapezoidal screw rods and the two linear guide rails are arranged on the left and right spiral trapezoidal screw rods; the two linear guide rails are arranged at the front end of the connecting frame of the mist control spraying box in parallel, the two ends of the linear guide rails are respectively provided with a sliding block, and the left mist control spraying box and the right mist control spraying box are respectively fixedly connected with the sliding blocks at the two ends of the two linear guide rails; the left-handed and right-handed trapezoidal lead screws are arranged between the two linear guide rails, two nuts are arranged on the left-handed and right-handed trapezoidal lead screws, the two nuts are fixedly connected with the left mist control spraying box and the right mist control spraying box respectively, the second speed reducing motor is fixed in the middle of the mist control spraying box connecting frame, the left-handed and right-handed trapezoidal lead screws are driven by the second speed reducing motor to rotate, and the two nuts move oppositely or oppositely on the left-handed and right-handed trapezoidal lead screws to adjust the distance between the left mist control spraying box and the right mist control spraying box.
5. The hot-dip galvanized steel strip small spangle production fog control apparatus of claim 1, wherein the gear transmission lifting structure comprises: the device comprises two driving gears, two supporting rollers, a motor transmission shaft, a driving device fixing frame and a first speed reducing motor;
the driving device fixing frame is arranged on the lifting structure support and comprises two fixing frames and two connecting rods, and the two fixing frames are fixedly connected through the two connecting rods; the two ends of the motor transmission shaft are respectively connected with the corresponding fixed frames in a rotating mode, a first speed reduction motor is arranged on the outer side of one fixed frame and is connected with one end of the motor transmission shaft, two driving gears are respectively arranged in the two fixed frames and are fixed at the two ends of the motor transmission shaft, two supporting rollers are respectively arranged in the corresponding fixed frames and are opposite to the driving gears, two racks which are arranged in parallel on the installation frame body penetrate through the corresponding fixed frames, the racks are located between the driving gears and the supporting rollers and are meshed with the driving gears, the first speed reduction motor drives the motor transmission shaft to drive the driving gears to vertically lift on the racks on the installation frame body, and then the mist control device is driven to vertically move on the installation frame body.
6. The fog control equipment for the production of the small spangles of the hot-dip galvanized steel strip as claimed in claim 5, wherein the opposite side walls of the two fixed frames are respectively provided with an anti-falling safety device, and a driven gear of the anti-falling safety device is meshed with a rack; the two fixing frames are provided with a second cylinder and a fixing seat, a piston rod of the second cylinder is connected with the middle of the connecting rod, the rear end of the connecting rod is rotatably connected with the fixing seat, and the front end of the connecting rod is pressed against the driving wheel under the pushing of the piston rod of the second cylinder, so that the driving gear and the driven gear are locked with the rack.
7. The hot-dip galvanizing strip small spangle production mist control equipment according to claim 6, wherein two sides of the mist control spraying box connecting frame are respectively provided with a holding structure, the holding structure comprises a holding bracket and 4 support wheels which are oppositely arranged in pairs, the holding bracket is fixed on the mist control spraying box connecting frame, and the 4 support wheels are arranged in the holding bracket; the racks on the mounting frame body penetrate through the 4 supporting wheels which are arranged oppositely in pairs.
8. The control system of the fog control equipment for the small spangles production of the hot-dip galvanized steel strip as claimed in any one of claims 1 to 7, characterized by comprising the following components: the system comprises a main control PLC, an HMI human-computer interface, a main console remote I/O station, a first reducing motor frequency converter, a second reducing motor frequency converter, a fan frequency converter and an industrial Ethernet switch; the main control PLC and the HMI human-computer interface are connected to a control system of the continuous hot galvanizing production line through an industrial Ethernet switch, and the main control PLC is respectively connected with a main console remote I/O station, a flow regulating valve, a switch valve, a first speed reducing motor frequency converter, a second speed reducing motor frequency converter and a fan frequency converter; the first speed reducing motor frequency converter is connected with a first speed reducing motor, the second speed reducing motor frequency converter is connected with a second speed reducing motor, and the fan frequency converter is connected with a fan motor; and the main control PLC controls the flow regulating valve, the switch valve, the first reducing motor frequency converter, the second reducing motor frequency converter and the fan frequency converter according to production process data of the continuous hot galvanizing production line so as to control the spraying position, the spraying granularity, the spraying width, the spraying flow and the spraying opening degree and angle.
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| CN202011460773.XA CN112593176B (en) | 2020-12-11 | 2020-12-11 | Fog control equipment for hot-dip galvanized strip steel small spangle production and control system thereof |
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Application publication date: 20210402 Assignee: ANSTEEL ENGINEERING TECHNOLOGY Corp.,Ltd. Assignor: Northeastern University Contract record no.: X2023210000042 Denomination of invention: A Mist Control Equipment and Control System for the Production of Hot Dip Galvanized Strip Steel Small Zinc Flower Granted publication date: 20210924 License type: Common License Record date: 20230615 |