CN113463002B - Efficient slag dragging device and method for continuous hot galvanizing production line - Google Patents
Efficient slag dragging device and method for continuous hot galvanizing production line Download PDFInfo
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- CN113463002B CN113463002B CN202110792776.1A CN202110792776A CN113463002B CN 113463002 B CN113463002 B CN 113463002B CN 202110792776 A CN202110792776 A CN 202110792776A CN 113463002 B CN113463002 B CN 113463002B
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- 239000002893 slag Substances 0.000 title claims abstract description 308
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 238000005246 galvanizing Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000011701 zinc Substances 0.000 claims abstract description 79
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 79
- 238000007664 blowing Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000010391 action planning Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
-
- 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
- C23C2/34—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses a high-efficiency slag dragging device for a continuous hot galvanizing production line and a control method thereof, wherein the device comprises a slag dragging robot base, a slag dragging head, a slag dragging robot telescopic cross beam, a slag dragging robot telescopic vertical rod and a moving vehicle; the zinc pot setting in the corresponding hot dip galvanize production line of mobile carriage, the slag robot base is established on the mobile carriage through rotatable pivot connector, and the telescopic crossbeam of slag robot is established at the slag robot base top, the upper end of the telescopic montant of slag robot links to each other with the outer end of the telescopic crossbeam of slag robot, and the lower extreme at the telescopic montant of slag robot is established to the slag head. The slag dragging is efficient, the slag dragging area is large, manual operation is thoroughly replaced, original manual auxiliary slag dragging is omitted, cost is reduced, and operation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of hot galvanizing, in particular to a high-efficiency slag dragging device for a continuous hot galvanizing production line and a slag dragging method thereof.
Background
The continuous hot dip coating technology of the strip steel is developed in China for nearly 30 years, the technical level and the construction scale are in an international leading position gradually, particularly in the last ten years, the number of hot dip galvanizing production lines under construction is increased year by year, and galvanized products have gradually moved to the market of high-end products with high-level surface quality, ultrahigh corrosion resistance and lower production cost. The zinc pot equipment is used as core equipment of a continuous galvanizing production line, the density and the quantity of zinc slag in the pot directly influence the quality of the surface of a galvanized sheet and the grade of products, and the slag dragging process has the most direct influence on the zinc slag in the zinc pot.
The existing slag dragging robot applied to a hot galvanizing production line has the following problems:
1. the slag fishing efficiency of the robot is low: the existing slag dragging robot adopts a single slag dragging head device, and each slag dragging step comprises the following steps: skimming and skimming are limited by factors such as a skimming track, a skimming action planning and the like, and the skimming quantity is about 5kg/min at present, so that the skimming and skimming process cannot meet the high-rhythm production requirement of the existing galvanized wire;
2. the slag fishing area of the robot is limited: the existing robot adopts a mechanical arm to drive a single slag-fishing head to carry out slag-fishing operation, and due to the influence of structural design, signal protection and other factors, when the robot approaches to the edge area of a grate, the interference of the mechanical arm and mechanical equipment such as a zinc boiler grate or the triggering of protection signal alarm is easily caused, so that the existing slag-fishing robot cannot clean zinc slag near the lower edge angle area of the grate by about 30 cm;
3. the slag dragging head is not thoroughly cleaned: when the existing slag dragging robot finishes slag dragging operation, the slag in the slag dragging head is cleaned by shaking the slag dragging head, and zinc slag is easily oxidized in the air and is adhered to a slag dragging head screen leakage port, so that the residual zinc slag near the screen leakage port cannot be thoroughly cleaned by the existing shaking mode;
4. the manual operation cannot be completely replaced: because zinc slag is gathered for a long time in the area close to the edge of the grate, the zinc slag is coagulated, and the quality defect of the strip steel surface is caused. Therefore, manual auxiliary slag skimming is often needed, which wastes a certain amount of manpower and loses the meaning of fully automatic operation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the efficient slag dragging device and the slag dragging method for the continuous hot galvanizing production line, so as to achieve the aims of high slag dragging efficiency and large slag dragging area.
In order to solve the technical problems, the invention adopts the following technical scheme:
the high-efficiency slag dragging device for the continuous hot galvanizing production line comprises a slag dragging robot base, a slag dragging head, a slag dragging robot telescopic cross beam, a slag dragging robot telescopic vertical rod and a moving vehicle; the zinc pot setting in the corresponding hot dip galvanize production line of mobile carriage, the slag robot base is established on the mobile carriage through rotatable pivot connector, and the telescopic crossbeam of slag robot is established at the slag robot base top, the upper end of the telescopic montant of slag robot links to each other with the outer end of the telescopic crossbeam of slag robot, and the lower extreme at the telescopic montant of slag robot is established to the slag head.
The hot galvanizing production line is provided with a guide rail structure for supporting a moving vehicle, and the moving vehicle is movably arranged on the guide rail structure.
The telescopic cross beam of the slag dragging robot and the telescopic vertical rod of the slag dragging robot are of telescopic structures, and the telescopic range is 0.5-2 m.
The lower part of the telescopic vertical rod of the slag dragging robot is provided with a slag blowing structure for cleaning residual zinc slag in the slag dragging head, and the slag blowing structure is positioned above the slag dragging head.
The slag dragging heads are uniformly distributed, and the slag dragging heads are telescopic.
The lower part of the slag dragging head is provided with a signal sensor for sensing the position of the slag dragging head.
The outside of the slag blowing structure is connected with a nitrogen source, the slag blowing structure is provided with an air outlet corresponding to the slag dragging head, and the air pressure at the air outlet ranges from 200 to 500 mbar.
The telescopic range of the telescopic slag dragging head is 0.1 m-1 m.
The group of slag dragging heads are arranged at the lower end of the telescopic vertical rod of the slag dragging robot through a rotating structure.
A slag dragging method utilizing the high-efficiency slag dragging device for the continuous hot galvanizing production line comprises the following steps of:
1) Starting a power supply, and controlling the mobile vehicle to move the slag dragging robot to an initial position at one end of the zinc pot;
2) Starting the slag dragging robot, controlling the rotating shaft connector to rotate the base of the slag dragging robot to a working position, and driving four telescopic slag dragging heads to descend to the vicinity of the zinc liquid level by the telescopic vertical rods of the slag dragging robot; the telescopic slag dragging head is accurately positioned within the range of 0 to 0.5m from the zinc liquid level through the signal sensor;
3) The telescopic slag dragging head rotates the slag dragging and filtering net to a position perpendicular to the zinc liquid level;
4) The slag fishing operation is carried out by adopting a mode of rotating four telescopic slag fishing heads, in the process of rotating slag fishing, a telescopic rod of the slag fishing heads stretches outwards in a stepping mode, and the stepping speed is about 4-6cm/s until all zinc slag in the radius is thoroughly removed; or aiming at the zinc slag in a special area in the zinc pot, such as the 20-40cm nearby the edge corner area of the lower edge of the grate, a single telescopic slag dragging head can be telescopic to the maximum position, and the zinc slag in the corner area can be removed by matching with the transverse movement of the moving vehicle;
5) The telescopic slag dragging head rotates a slag dragging and leaking net to a position parallel to the zinc liquid level, the base of the slag dragging robot is rotated to the position above the zinc slag hopper after the excessive zinc liquid is drained, and the slag dragging and leaking net is turned over to finish slag pouring;
6) Starting a slag blowing structure above the telescopic slag fishing head, adjusting the pressure value to be 200-500 mbar of air pressure, thoroughly cleaning zinc slag in the slag fishing net head, and completing one slag fishing action;
7) Rotating the base of the slag dragging robot to a working position; meanwhile, the telescopic cross beam of the slag dragging robot is matched with the moving vehicle to gradually finish a whole wheel slag dragging operation;
8) And after the slag dragging operation is finished, resetting the moving vehicle and the slag dragging robot, and waiting for a slag dragging command of the next round.
Compared with the prior art, the invention has the following advantages:
1. the working efficiency of the original slag scooping robot is greatly improved, the slag scooping amount is about 15kg/min, and zinc residues in a zinc pot can be effectively removed by the zinc-preserving wire in a high-speed continuous production process;
2. the method thoroughly replaces manual operation, eliminates original manual auxiliary slag skimming, reduces cost, improves operation efficiency, improves on-site working environment, effectively avoids the plating solution pot area which is exposed to high temperature, high pollution and high noise for a long time by operators, and reduces damage to human health;
3. the zinc slag in the area of about 30cm close to the edge of the grate can be cleaned, the zinc slag is prevented from being coagulated after long-time aggregation, and the surface quality of the galvanized sheet is improved;
4. through using the slag blowing structure, the single slag removal efficiency can be effectively improved, the zinc liquid loss is reduced, the production operation cost is reduced, and the cost reduction and the efficiency enhancement are realized.
Drawings
The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic side view of an embodiment of the apparatus of the present invention.
Fig. 2 is a schematic perspective view of an embodiment of the device of the present invention.
FIG. 3 is a schematic diagram of the slag blowing structure of the present invention.
Fig. 4 is a schematic diagram of the slag dragging head according to the invention.
FIG. 5 is a schematic diagram of the slag scooping operation according to the present invention.
In the figure:
1. the slag dragging robot comprises a slag dragging robot base, a slag dragging robot telescopic cross beam, a slag dragging robot telescopic vertical rod, a slag blowing structure, a slag dragging head, a signal sensor, a rotating shaft connector, a moving vehicle, a zinc slag bucket, a furnace grate and a zinc pot.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings, which illustrate in further detail.
As shown in fig. 1 to 5, the efficient slag scooping device for the continuous hot galvanizing production line is a slag scooping robot arranged close to a zinc pot and comprises a slag scooping robot base 1, a slag scooping head 5, a slag scooping robot telescopic cross beam 2, a slag scooping robot telescopic vertical rod 3 and a moving vehicle 8.
The moving vehicle 8 is arranged corresponding to a zinc pot 11 in a hot galvanizing production line, a guide rail structure for supporting the moving vehicle is arranged in the hot galvanizing production line, and the moving vehicle is movably arranged on the guide rail structure; the slag dragging robot base 1 is arranged on the mobile vehicle through a rotatable rotating shaft connector 7, the slag dragging robot telescopic cross beam 2 is arranged at the top of the slag dragging robot base, the upper end of the slag dragging robot telescopic vertical beam 3 is connected with the outer end of the slag dragging robot telescopic cross beam, and the slag dragging head is arranged at the lower end of the slag dragging robot telescopic vertical beam.
The slag dragging robot base is connected with the mobile vehicle through the rotating shaft connector, so that the slag dragging robot can conveniently rotate to a specified zinc slag bucket, and the degree of freedom of the slag dragging robot is improved; the distance between the movable vehicle and the edge of the zinc pot is about 500mm, so that the zinc liquid is prevented from corroding the movable rail, and the zinc pot is convenient to replace.
The telescopic cross beam 2 of the slag dragging robot and the telescopic vertical rod 3 of the slag dragging robot are of telescopic structures, and the telescopic range is 0.5-2 m; the slag scooping area can cover more than 99% of the zinc pot by matching with the moving vehicle below the slag scooping robot, and the coverage area is wide; the method thoroughly replaces manual operation, eliminates original manual auxiliary slag skimming, reduces cost, improves operation efficiency, improves on-site working environment, effectively avoids the plating solution pot area which is exposed to high temperature, high pollution and high noise for a long time by operators, and reduces damage to human health.
The lower part of the telescopic vertical rod of the slag dragging robot is provided with a slag blowing structure 4 which is used for cleaning residual zinc slag in the slag dragging head and is positioned above the slag dragging head; the outside of the slag blowing structure is connected with a nitrogen source, the slag blowing structure is provided with an air outlet corresponding to the slag dragging head, and the air pressure at the air outlet ranges from 200 to 500 mbar.
The slag dragging robot is provided with N 2 The slag blowing structure is fixedly connected with the telescopic vertical rod, the position of the air outlet corresponds to the telescopic slag dragging head below, the pressure value of slag blowing can be adjusted according to the actual condition of the site, and compression N can be utilized 2 And rapidly cleaning the zinc slag remained in the slag dragging head.
The slag dragging heads 5 are uniformly distributed, and one group of slag dragging heads are telescopic slag dragging heads; the telescopic range of the telescopic slag dragging head is 0.1 m-1 m. The slag dragging robot is provided with four telescopic slag dragging heads, can synchronously and efficiently remove zinc slag on the surface of the zinc pot, can remove all zinc slag with the radius of 1m at most, and can thoroughly remove the zinc slag near the edge angle area of the lower edge of the grate 10 by adopting a telescopic structural design.
The lower part of the slag dragging head is provided with a signal sensor 6 for sensing the position of the slag dragging head. The slag dragging robot is provided with a signal sensor, can realize the slag dragging range of a telescopic slag dragging head through an automatic means, keeps slag dragging operation to be 0-0.5 m below the zinc liquid level, and realizes accurate slag dragging operation.
The outside of the slag blowing structure is connected with a high-pressure N 2 The medium can effectively prevent zinc slag from adhering in the telescopic slag dragging head due to oxidation, thereby causing low slag removal efficiency, and simultaneously, the compressed N of 200-500 mbar bra at the air outlet 2 Can thoroughly remove zinc slag at the inner net mouth of the slag dragging head.
The group of slag dragging heads are arranged at the lower end of the telescopic vertical rod of the slag dragging robot through a rotating structure; the telescopic slag dragging heads are all made of stainless steel, WC medium is smeared on the surfaces, the zinc liquid is prevented from corroding the telescopic slag dragging heads, and the service life of the telescopic slag dragging heads is prolonged.
The slag dragging robot drags out slag by adopting a mode of rotating a telescopic slag dragging head, the rotating speed is about 18 degrees/s, in the process of rotating slag dragging, a slag dragging head telescopic rod stretches out and draws back in a stepping mode, and the stepping speed is about 5cm/s until all zinc slag in the radius is thoroughly removed.
The slag dragging method by utilizing the high-efficiency slag dragging device for the continuous hot galvanizing production line comprises the following steps of:
1) Starting a power supply, and controlling the mobile vehicle to move the slag dragging robot to an initial position at one end of the zinc pot;
2) Starting the slag dragging robot, controlling the rotating shaft connector to rotate the base of the slag dragging robot to a working position, and driving four telescopic slag dragging heads to descend to the vicinity of the zinc liquid level by the telescopic vertical rods of the slag dragging robot; the telescopic slag dragging head is accurately positioned within the range of 0 to 0.5m from the zinc liquid level through the signal sensor;
3) The telescopic slag dragging head rotates the slag dragging and filtering net to a position perpendicular to the zinc liquid level; simultaneously, the telescopic rod reaches the position 0.1m of the lowest length;
4) The slag fishing operation is carried out by adopting a mode of rotating four telescopic slag fishing heads, in the process of rotating slag fishing, a telescopic rod of the slag fishing heads stretches outwards in a stepping mode, and the stepping speed is about 4-6cm/s until all zinc slag in the radius is thoroughly removed; or aiming at the zinc slag in a special area in the zinc pot, such as the 20-40cm nearby the edge corner area of the lower edge of the grate, a single telescopic slag dragging head can be telescopic to the maximum position, and the zinc slag in the corner area can be removed by matching with the transverse movement of the moving vehicle;
5) The telescopic slag dragging head rotates a slag dragging and leaking net to a position parallel to the zinc liquid level, the base of the slag dragging robot is rotated to be above the zinc slag hopper 9 after the excessive zinc liquid is drained, and the slag dragging and leaking net is turned over to finish slag pouring;
6) Starting a slag blowing structure above the telescopic slag fishing head, adjusting the pressure value to be 200-500 mbar of air pressure, thoroughly cleaning zinc slag in the slag fishing net head, and completing one slag fishing action;
7) Rotating the base of the slag dragging robot to a working position; meanwhile, the telescopic cross beam of the slag dragging robot is matched with the moving vehicle to gradually finish a whole wheel slag dragging operation according to the direction of the solid arrow in FIG. 2;
8) And after the slag dragging operation is finished, resetting the moving vehicle and the slag dragging robot, and waiting for a slag dragging command of the next round.
Through the slag dragging action in the step 2-8, more than 99% of the area in the zinc pot behind the grate can be cleaned.
The invention solves the problems that the existing robot has low slag dragging efficiency, limited slag dragging area, incomplete cleaning of slag dragging heads, incapability of completely replacing manual operation and the like. The invention greatly improves the working efficiency of the original slag dragging robot, the slag dragging quantity is about 15kg/min, and the high-speed production rhythm of the galvanization production line is satisfied; completely replaces manual operation, and cancels the original manual auxiliary slag skimming; can clean zinc slag in the area of about 30cm near the edge of the grate, prevent zinc slag from condensing caused by long-time aggregation of zinc slag, and improve the surface quality of the galvanized sheet.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and the above-described technical features may be arbitrarily combined to form a plurality of embodiments of the present invention.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied to other applications without any modification, as long as the inventive concept and technical scheme are adopted.
Claims (1)
1. A slag dragging method by utilizing a high-efficiency slag dragging device for a continuous hot galvanizing production line is characterized by comprising the following steps of:
the high-efficiency slag dragging device for the continuous hot galvanizing production line comprises a slag dragging robot base, a slag dragging head, a slag dragging robot telescopic cross beam, a slag dragging robot telescopic vertical rod and a moving vehicle; the movable trolley is arranged corresponding to a zinc pot in the hot galvanizing production line, the slag dragging robot base is arranged on the movable trolley through a rotatable rotating shaft connector, a telescopic cross beam of the slag dragging robot is arranged at the top of the slag dragging robot base, the upper end of a telescopic vertical rod of the slag dragging robot is connected with the outer end of the telescopic cross beam of the slag dragging robot, and a slag dragging head is arranged at the lower end of the telescopic vertical rod of the slag dragging robot;
the lower part of the telescopic vertical rod of the slag dragging robot is provided with a slag blowing structure for cleaning residual zinc slag in the slag dragging head, and the slag blowing structure is positioned above the slag dragging head; the outside of the slag blowing structure is connected with a nitrogen source, the slag blowing structure is provided with an air outlet corresponding to the slag dragging head, and the air pressure at the air outlet is 200-500 mbar;
the slag dragging heads are uniformly distributed, and one group of slag dragging heads are telescopic slag dragging heads; the lower part of the slag dragging head is provided with a signal sensor for sensing the position of the slag dragging head; the group of slag dragging heads are arranged at the lower end of the telescopic vertical rod of the slag dragging robot through a rotating structure;
a guide rail structure for supporting a moving vehicle is arranged in the hot galvanizing production line, and the moving vehicle is movably arranged on the guide rail structure; the telescopic cross beam of the slag dragging robot and the telescopic vertical rod of the slag dragging robot are of telescopic structures, and the telescopic range is 0.5-2 m; the telescopic range of the telescopic slag dragging head is 0.1 m-1 m;
the slag removing method comprises the following steps:
1) Starting a power supply, and controlling the mobile vehicle to move the slag dragging robot to an initial position at one end of the zinc pot;
2) Starting the slag dragging robot, controlling the rotating shaft connector to rotate the base of the slag dragging robot to a working position, and driving four telescopic slag dragging heads to descend to the vicinity of the zinc liquid level by the telescopic vertical rods of the slag dragging robot; the telescopic slag dragging head is accurately positioned within the range of 0 to 0.5m from the zinc liquid level through the signal sensor;
3) The telescopic slag dragging head rotates the slag dragging and filtering net to a position perpendicular to the zinc liquid level;
4) The slag fishing operation is carried out by adopting a mode of rotating four telescopic slag fishing heads, in the process of rotating slag fishing, a telescopic rod of the slag fishing heads stretches outwards in a stepping mode, and the stepping speed is 4-6cm/s until all zinc slag in the radius is thoroughly removed; or aiming at zinc slag in a special area in the zinc pot, such as 20-40cm of the lower edge corner area of the grate, adopting a single telescopic slag dragging head to be telescopic to the maximum position, and removing the zinc slag in the corner area by matching with the transverse movement of the moving vehicle;
5) The telescopic slag dragging head rotates a slag dragging and leaking net to a position parallel to the zinc liquid level, the base of the slag dragging robot is rotated to the position above the zinc slag hopper after the excessive zinc liquid is drained, and the slag dragging and leaking net is turned over to finish slag pouring;
6) Starting a slag blowing structure above the telescopic slag fishing head, adjusting the pressure value to be 200-500 mbar of air pressure, thoroughly cleaning zinc slag in the slag fishing net head, and completing one slag fishing action;
7) Rotating the base of the slag dragging robot to a working position; meanwhile, the telescopic cross beam of the slag dragging robot is matched with the moving vehicle to gradually finish a whole wheel slag dragging operation;
8) And after the slag dragging operation is finished, resetting the moving vehicle and the slag dragging robot, and waiting for a slag dragging command of the next round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792776.1A CN113463002B (en) | 2021-07-14 | 2021-07-14 | Efficient slag dragging device and method for continuous hot galvanizing production line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110792776.1A CN113463002B (en) | 2021-07-14 | 2021-07-14 | Efficient slag dragging device and method for continuous hot galvanizing production line |
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| CN113463002A CN113463002A (en) | 2021-10-01 |
| CN113463002B true CN113463002B (en) | 2024-03-08 |
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