CN114086097A - Pre-melting pot zinc adding device for strip steel production line and working method thereof - Google Patents
Pre-melting pot zinc adding device for strip steel production line and working method thereof Download PDFInfo
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- CN114086097A CN114086097A CN202111504343.8A CN202111504343A CN114086097A CN 114086097 A CN114086097 A CN 114086097A CN 202111504343 A CN202111504343 A CN 202111504343A CN 114086097 A CN114086097 A CN 114086097A
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 107
- 239000011701 zinc Substances 0.000 title claims abstract description 107
- 238000002844 melting Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 87
- 238000013519 translation Methods 0.000 claims abstract description 67
- 230000008018 melting Effects 0.000 claims abstract description 38
- 230000001133 acceleration Effects 0.000 claims description 6
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 9
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- 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
Abstract
The invention discloses a pre-melting pot zinc adding device for a strip steel production line, which comprises a main pot, a pre-melting pot, a chute, an electric cabinet, a track beam, a translation trolley, an electric hoist and a laser range finder, wherein the pre-melting pot is used for melting a zinc ingot to form zinc liquid, and the zinc liquid overflowing from an outlet of the pre-melting pot flows into the main pot through the chute; the track beam is positioned above the premelting pot; the translation trolley is connected with the track beam and translates along the track beam; the electric hoist is hoisted at the lower end of the translation trolley; a translation position limit switch is arranged on the translation trolley; the electric hoist is provided with a lifting position limit switch; the laser range finder is arranged above the main pot through a bracket; the electric control box is arranged near the premelting pot in a wall-mounted mode. The zinc adding device of the premelting pot for the strip steel production line has the advantages of reasonable structure, safety, stability, accurate control and easy operation. The invention also discloses a working method of the zinc adding device of the premelting pot used on the strip steel production line.
Description
Technical Field
The invention relates to a zinc adding device of a premelting pot for a strip steel production line and a working method thereof.
Background
With the increasingly wide application of strip steel products in various industries, particularly the wide application of strip steel products with coatings, the products have excellent corrosion resistance, so that the products have great development in the fields of household appliances, automobiles, building materials and the like.
The strip steel is galvanized through a main pot filled with zinc liquid at the production line process speed, the key process in hot galvanizing production is that the strip steel passes through the zinc liquid in the main pot, the zinc liquid in the main pot is continuously reduced due to the fact that the zinc liquid is attached to the surface of the strip steel, the zinc needs to be supplemented, and the liquid level height of the zinc liquid and the temperature of the zinc liquid need to be kept stable during zinc adding. At present, a common zinc adding mode is that a zinc ingot is hung by an electric hoist to be lifted and added with zinc by manual control, manpower is occupied, liquid level control precision is low, liquid temperature fluctuation is large, and hidden troubles are brought to the quality of strip steel products. In addition, when zinc is melted, the control box of the electric hoist is subjected to high-temperature roasting, electric elements sometimes fail, the electric hoist fails to normally operate, and the production capacity of a production line is seriously influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the zinc adding device of the premelting pot for the strip steel production line and the working method thereof, which have the advantages of reasonable structure, safety, stability, accurate control and easy operation; the liquid level and the temperature of the metal liquid in the main pot can be ensured to be within a set range, and the process requirement of a production line is met.
The technical scheme for realizing the purpose is as follows: the utility model provides a premelt pot adds zinc device for on belted steel production line, includes main pot, premelt pot, chute, electric cabinet, track roof beam, translation dolly, electric block and laser range finder, wherein:
one end of the chute is connected with an outlet of the pre-melting pot, the other end of the chute is positioned right above the main pot, the pre-melting pot is used for melting zinc ingots to form zinc liquid, and the zinc liquid overflowing from the outlet of the pre-melting pot flows into the main pot through the chute;
the track beam is positioned above the premelting pot;
the translation trolley is connected with the track beam and translates along the track beam;
the electric hoist is hoisted at the lower end of the translation trolley, the translation trolley drives the electric hoist to do translation motion, and the electric hoist drives the hook on the electric hoist to do lifting motion;
a translation position limit switch is arranged on the translation trolley;
the electric hoist is provided with a lifting position limit switch;
the laser range finder is arranged above the main pot through a support and is used for detecting the actual liquid level of the zinc liquid in the main pot and sending an actual liquid level signal of the zinc liquid to the electric cabinet;
the electric control box is arranged near the premelting pot in a wall-mounted mode;
the translation trolley, the electric hoist, the translation position limit switch and the lifting position limit switch are respectively and electrically connected with the electric cabinet;
the electric control box is provided with a wired manual operator and a wireless manual operator, and both the wired manual operator and the wireless manual operator are provided with a manual mode button and an automatic mode button.
The zinc adding device for the premelting pot on the strip steel production line is characterized in that the wired manual operator or the wireless manual operator is used for controlling the translation of the electric hoist and the lifting of the hook in a manual mode; and in an automatic mode, the electric cabinet automatically controls the translation of the electric hoist and the lifting of the hook.
The zinc adding device for the premelting pot on the strip steel production line is characterized in that a variable frequency motor is arranged in the translation trolley, and the variable frequency motor drives the translation trolley to translate along the track beam.
The premelting pot zinc adding device for the strip steel production line is characterized in that the lifting position limit switch is used for controlling the position of a hook of the electric hoist, when the hook rises to a high position, the lifting position limit switch cuts off a power supply to enable the hook to be kept at the high position, and when the hook of the electric hoist falls to a low position, the lifting position limit switch cuts off the power supply to enable the hook to be kept at the low position.
The zinc adding device for the premelting pot on the strip steel production line is characterized in that the translation position limit switch is provided with four limit switch state positions, namely a stop position, an acceleration/deceleration position, a deceleration/acceleration position and a working position; when the zinc ingot stacking area stops, the translation trolley is positioned in the zinc ingot stacking area; and when the pre-melting pot is in a working position, the translation trolley is positioned vertically above the pre-melting pot.
The other technical scheme for realizing the purpose is as follows: a working method of a zinc adding device of a premelting pot used on a strip steel production line is characterized by comprising the following steps:
s1, hoisting a zinc ingot, namely, driving the electric hoist to move to a zinc ingot stacking area by the translation trolley, controlling a hook to descend by the electric hoist, hanging the zinc ingot on the hook of the electric hoist by a worker, controlling the hook to ascend by the electric hoist, driving the electric hoist to move the zinc ingot above the premelting pot by the translation trolley, controlling the zinc ingot to descend by the electric hoist, stopping descending when the zinc ingot is 100mm away from the liquid level of zinc liquid in the premelting pot, and waiting for zinc melting;
s2, zinc melting step: the manual mode or the automatic mode is selected on the wired manual operator or the wireless manual operator, and when the automatic mode is selected: the electric cabinet calculates the stroke L of the zinc ingot needing to descend according to the current height H of the zinc ingot, the difference H1 between the actual liquid level of the zinc liquid in the main pot and the preset liquid level of the zinc liquid detected by the laser range finder and the height difference H between the preset liquid level of the zinc liquid in the main pot and the liquid level of the zinc liquid in the premelting pot, and sends the corresponding stroke signal needing to descend to the electric hoist, and the calculation formula is as follows:
L＝H+h+(S1÷S2)×h1
in the formula: s1 is the cross section area of the inner cavity of the main boiler, and S2 is the cross section area of the zinc ingot; if the descending height L is greater than 1/3 of the zinc ingot height, the initial L is equal to 1/3 of the zinc ingot height, otherwise, the electric hoist automatically descends the zinc ingot L; the control box continuously calculates the descending stroke L of the zinc ingot each time step by step according to the actual liquid level change of the zinc liquid in the main pot detected by the laser range finder, and sends a corresponding required descending stroke signal to the electric hoist, and the electric hoist controls the descending height of the zinc ingot each time according to the received required descending stroke signal until the zinc ingot is completely submerged into the liquid level of the zinc liquid in the premelting pot; then the electric hoist controls the hook to rise to a high position, the translation trolley drives the electric hoist to return to the zinc ingot stacking area again to hoist the zinc ingots, and then the zinc adding process in the automatic mode is continuously repeated;
and when zinc is melted in the initial pre-melting pot or in an emergency, a manual mode is used, and the wired manual operator or the wireless manual operator is used for controlling the translation of the electric hoist and the lifting of the hook.
The zinc adding device of the premelting pot for the strip steel production line and the working method thereof have the advantages of reasonable structure, safety, stability, accurate control and easy operation; the liquid level and the temperature of the metal liquid in the main pot can be ensured to be within a set range, and the process requirement of a production line is met.
Drawings
FIG. 1 is a schematic structural diagram of a zinc adding device of a premelting pot used in a strip steel production line;
FIG. 2 is a schematic view of the installation of a laser rangefinder;
FIG. 3 is a schematic view of the installation of the translation trolley and the electric block;
FIG. 4 is an electrical connection diagram of the zinc adding device of the premelting pot used in the strip steel production line.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1, 2, 3 and 4, a pre-melting pot zinc adding device for a strip steel production line according to a preferred embodiment of the present invention includes a main pot 1, a pre-melting pot 2, a chute 3, an electric cabinet 4, a track beam 5, a translation trolley 11, an electric hoist 6 and a laser range finder 8.
One end of the chute 3 is connected with an outlet of the pre-melting pot 2, the other end of the chute is positioned right above the main pot 1, the pre-melting pot 2 is used for melting zinc ingots to form zinc liquid, and the zinc liquid overflowing from the outlet of the pre-melting pot 2 flows into the main pot 1 through the chute 3; the track beam 5 is positioned above the premelting pot 2; the translation trolley 11 is connected with the track beam 5, and the translation trolley 11 translates along the track beam 5; the electric hoist 6 is hung at the lower end of the translation trolley 11, the translation trolley 11 drives the electric hoist 6 to do translation motion, and the electric hoist 6 drives the hook 61 on the electric hoist 6 to do lifting motion; a translation position limit switch 12 is arranged on the translation trolley 11; the electric hoist 6 is provided with a lifting position limit switch; the laser range finder 8 is arranged above the main pot 1 through a support 81, and the laser range finder 8 is used for detecting the actual liquid level of the zinc liquid in the main pot and sending an actual liquid level signal of the zinc liquid to the electric cabinet 4; the electric cabinet 4 is arranged near the premelting pot in a wall-mounted mode, so that high-temperature roasting during zinc smelting is avoided, and the operation and maintenance of personnel are facilitated.
The translation trolley 11, the electric hoist 6, the translation position limit switch 12 and the lifting position limit switch 13 are respectively electrically connected with the electric cabinet 4; the electric control box 4 is provided with a wired manual operator 9 and a wireless manual operator 10, and both the wired manual operator 9 and the wireless manual operator 10 are provided with a manual mode button and an automatic mode button. In a manual mode, a worker manually controls the translation of the electric hoist 6 and the lifting of the hook 61 through the wired manual operator 9 or the wireless manual operator 10, and the lifting zinc adding is implemented by hanging a zinc ingot similar to a conventional manual control electric hoist; in the automatic mode, the electric cabinet 4 automatically controls the translation of the electric hoist 6 and the lifting of the hook 61.
The lifting position limit switch 13 is used for controlling the position of the hook 61 of the electric hoist, when the hook 61 rises to a high position, the lifting position limit switch 13 cuts off the power supply, so that the hook 61 is kept at the high position, and when the hook 61 of the electric hoist drops to a low position, the lifting position limit switch 13 cuts off the power supply, so that the hook is kept at the low position.
The translation position limit switch 12 has four limit switch status bits, which are a stop bit, an acceleration/deceleration bit, a deceleration/acceleration bit, and a working bit; when the zinc ingot stacking area stops, the translation trolley 11 is positioned in the zinc ingot stacking area; when in the working position, the translation trolley 11 is positioned vertically above the premelting pot 2.
The translation trolley 11 is internally provided with a variable frequency motor, the variable frequency motor drives the translation trolley 11 to translate along the track beam 5, and the translation trolley 11 is controlled through frequency conversion to realize that the zinc ingot is rapidly and stably moved to a working position from a stopping position.
The invention relates to a working method of a zinc adding device of a premelting pot used on a strip steel production line, which comprises the following steps:
s1, hoisting the zinc ingots, namely, driving the electric hoist 6 to move to a zinc ingot stacking area (stop position) by the translation trolley 11, controlling the hook 61 of the electric hoist 6 to fall to a low position, hanging the zinc ingots 7 on the hook 61 of the electric hoist by a worker, controlling the hook 6 of the electric hoist to rise to a high position, driving the electric hoist 6 to move the zinc ingots 7 to the upper part (working position) of the premelting pot 2 by the translation trolley 11, controlling the zinc ingots 7 to fall by the electric hoist 6, stopping falling when the zinc ingots are 100mm away from the liquid level of zinc liquid in the premelting pot, and waiting for zinc melting;
s2, zinc melting step: the wired manual operator 9 or the wireless manual operator 10 selects a manual mode or an automatic mode, and in the automatic mode: the electric cabinet 4 calculates the stroke L of the zinc ingot needing to descend according to the current height H of the zinc ingot, the difference H1 between the actual liquid level of the zinc liquid in the main pot and the preset liquid level of the zinc liquid detected by the laser range finder and the height difference H between the preset liquid level of the zinc liquid in the main pot and the liquid level of the zinc liquid in the pre-melting pot, and sends the corresponding stroke signal needing to descend to the electric hoist, and the calculation formula is as follows:
L＝H+h+(S1÷S2)×h1
in the formula: s1 is the cross section area of the inner cavity of the main boiler, and S2 is the cross section area of the zinc ingot; if the descending height L is greater than 1/3 of the zinc ingot height, the initial L is equal to 1/3 of the zinc ingot height, otherwise, the electric hoist automatically descends the zinc ingot L; the control box 4 continuously calculates the descending stroke L of the zinc ingot each time step by step according to the actual liquid level change of the zinc liquid in the main pot detected by the laser range finder 8, and sends a corresponding required descending stroke signal to the electric hoist 6, and the electric hoist 6 controls the descending height of the zinc ingot 7 each time according to the received required descending stroke signal until the zinc ingot 7 is completely immersed into the liquid level of the zinc liquid in the premelting pot 2; then the electric hoist 6 controls the hook to rise to the high position, the translation trolley 11 drives the electric hoist 6 to return to the zinc ingot stacking area again to hoist the zinc ingot, and then the zinc adding process in the automatic mode is continuously repeated.
When the zinc is melted in the initial pre-melting pot or in an emergency, a manual mode is used, the wired manual operator 9 or the wireless manual operator 10 controls the electric hoist 6 to translate and the hook 61 to lift, so that the zinc ingot 7 is safely, stably and efficiently hung into the pre-melting pot 2 to be melted, and the manual mode is similar to a conventional manual mode for controlling the electric hoist to hang the zinc ingot to lift and add zinc.
The invention relates to a zinc adding device of a premelting pot for a strip steel production line, which can select a manual mode and an automatic mode through a manual operator after hanging zinc ingots, and automatically hang the zinc ingots into the premelting pot to melt the zinc ingots according to the production line process if the automatic mode is selected. If the manual mode is selected, the zinc ingot is hung into the premelting pot through the wired manual operator 9 or the wireless manual operator 10 to be smelted; the automatic mode is mainly used in normal production.
The zinc adding device of the premelting pot for the strip steel production line has the advantages that the liquid level of the zinc liquid is accurately detected in real time, a closed loop is formed in the process control, the electric hoist is automatically controlled to lift the zinc ingot to keep the liquid level of the zinc liquid stable, the error control is smaller than or equal to 2mm, the control precision of the liquid level of the zinc liquid is improved, the large control error of the height of the zinc liquid level caused by manual operation is avoided, meanwhile, the influence of excessive falling of the zinc ingot on the stability of the liquid level and the temperature of the zinc liquid is avoided, the stability of the temperature of the zinc liquid is favorably kept, the product quality of strip steel is favorably realized, the operation and the maintenance of personnel are favorably realized, and the labor force is reduced.
In conclusion, the zinc adding device for the premelting pot on the strip steel production line and the working method thereof have the advantages of reasonable structure, safety, stability, accurate control and easy operation; the liquid level and the temperature of the metal liquid in the main pot can be ensured to be within a set range, and the process requirement of a production line is met.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a premelt pot adds zinc device for on belted steel production line which characterized in that, includes main pot, premelt pot, chute, electric cabinet, track roof beam, translation dolly, electric block and laser range finder, wherein:
one end of the chute is connected with an outlet of the pre-melting pot, the other end of the chute is positioned right above the main pot, the pre-melting pot is used for melting zinc ingots to form zinc liquid, and the zinc liquid overflowing from the outlet of the pre-melting pot flows into the main pot through the chute;
the track beam is positioned above the premelting pot;
the translation trolley is connected with the track beam and translates along the track beam;
the electric hoist is hoisted at the lower end of the translation trolley, the translation trolley drives the electric hoist to do translation motion, and the electric hoist drives the hook on the electric hoist to do lifting motion;
a translation position limit switch is arranged on the translation trolley;
the electric hoist is provided with a lifting position limit switch;
the laser range finder is arranged above the main pot through a support and is used for detecting the actual liquid level of the zinc liquid in the main pot and sending an actual liquid level signal of the zinc liquid to the electric cabinet;
the electric control box is arranged near the premelting pot in a wall-mounted mode;
the translation trolley, the electric hoist, the translation position limit switch and the lifting position limit switch are respectively and electrically connected with the electric cabinet;
the electric control box is provided with a wired manual operator and a wireless manual operator, and both the wired manual operator and the wireless manual operator are provided with a manual mode button and an automatic mode button.
2. The pre-melting pot zinc adding device for the strip steel production line according to claim 1, wherein in a manual mode, the translation of the electric hoist and the lifting of the hook are controlled through the wired manual operator or the wireless manual operator; and in an automatic mode, the electric cabinet automatically controls the translation of the electric hoist and the lifting of the hook.
3. The pre-melting pot zinc adding device for the strip steel production line as claimed in claim 1, wherein a variable frequency motor is arranged in the translation trolley, and the variable frequency motor drives the translation trolley to translate along the track beam.
4. The pre-melting pot zinc adding device for the strip steel production line as claimed in claim 1, wherein the lifting position limit switch is used for controlling the position of the hook of the electric hoist, when the hook is lifted to a high position, the lifting position limit switch cuts off the power supply to enable the hook to be kept at the high position, and when the hook of the electric hoist is lowered to a low position, the lifting position limit switch cuts off the power supply to enable the hook to be kept at the low position.
5. The pre-melting pot zinc adding device for the strip steel production line as claimed in claim 1, wherein the translation position limit switch has four limit switch state positions, which are a stop position, an acceleration/deceleration position, a deceleration/acceleration position and a working position; when the zinc ingot stacking area stops, the translation trolley is positioned in the zinc ingot stacking area; and when the pre-melting pot is in a working position, the translation trolley is positioned vertically above the pre-melting pot.
6. The working method of the zinc adding device of the premelting pot used in the strip steel production line according to any one of the claims 1 to 5, is characterized by comprising the following steps:
s1, hoisting a zinc ingot, namely, driving the electric hoist to move to a zinc ingot stacking area by the translation trolley, controlling a hook to descend by the electric hoist, hanging the zinc ingot on the hook of the electric hoist by a worker, controlling the hook to ascend by the electric hoist, driving the electric hoist to move the zinc ingot above the premelting pot by the translation trolley, controlling the zinc ingot to descend by the electric hoist, stopping descending when the zinc ingot is 100mm away from the liquid level of zinc liquid in the premelting pot, and waiting for zinc melting;
s2, zinc melting step: the manual mode or the automatic mode is selected on the wired manual operator or the wireless manual operator, and when the automatic mode is selected: the electric cabinet calculates the stroke L of the zinc ingot needing to descend according to the current height H of the zinc ingot, the difference H1 between the actual liquid level of the zinc liquid in the main pot and the preset liquid level of the zinc liquid detected by the laser range finder and the height difference H between the preset liquid level of the zinc liquid in the main pot and the liquid level of the zinc liquid in the premelting pot, and sends the corresponding stroke signal needing to descend to the electric hoist, and the calculation formula is as follows:
L＝H+h+(S1÷S2)×h1
in the formula: s1 is the cross section area of the inner cavity of the main boiler, and S2 is the cross section area of the zinc ingot; if the descending height L is greater than 1/3 of the zinc ingot height, the initial L is equal to 1/3 of the zinc ingot height, otherwise, the electric hoist automatically descends the zinc ingot L; the control box continuously calculates the descending stroke L of the zinc ingot each time step by step according to the actual liquid level change of the zinc liquid in the main pot detected by the laser range finder, and sends a corresponding required descending stroke signal to the electric hoist, and the electric hoist controls the descending height of the zinc ingot each time according to the received required descending stroke signal until the zinc ingot is completely submerged into the liquid level of the zinc liquid in the premelting pot; then the electric hoist controls the hook to rise to a high position, the translation trolley drives the electric hoist to return to the zinc ingot stacking area again to hoist the zinc ingots, and then the zinc adding process in the automatic mode is continuously repeated;
and when zinc is melted in the initial pre-melting pot or in an emergency, a manual mode is used, and the wired manual operator or the wireless manual operator is used for controlling the translation of the electric hoist and the lifting of the hook.
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| CN202111504343.8A CN114086097A (en) | 2021-12-10 | 2021-12-10 | Pre-melting pot zinc adding device for strip steel production line and working method thereof |
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| CN202111504343.8A CN114086097A (en) | 2021-12-10 | 2021-12-10 | Pre-melting pot zinc adding device for strip steel production line and working method thereof |
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| CN102373391A (en) * | 2010-08-20 | 2012-03-14 | 宝山钢铁股份有限公司 | Automatic zincification device and control method thereof |
| CN204474741U (en) * | 2015-02-05 | 2015-07-15 | 广东华冠钢铁有限公司 | A kind of galvanizing zinc-melting device |
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