A device for removing zinc from the zinc coating of hot-dip galvanized steel wire by blowing air and a control method thereof

Abstract

The invention relates to the technical field of air-blowing zinc removal, in particular to an air-blowing zinc removal device for a hot-dip galvanized steel wire zinc coating layer and a control method thereof, comprising a galvanizing pool, a cover plate being fixed on the top of the galvanizing pool, and further comprising: a bracket fixed to the top of the galvanizing pool, an extension frame being fixed on the top of the bracket and being adjustable for lifting and lowering; a conveying component installed between the interior of the galvanizing pool and the extension frame and used for conveying the steel wire through the interior of the galvanizing pool; a plurality of groups of air-blowing boxes, two of the air-blowing boxes forming a group; a plurality of wrapping components respectively installed at the bottom of the air-blowing boxes, two of the wrapping components at the bottom of the same group of air-blowing boxes being combined to form a wrapping for the steel wire removed from the galvanizing pool; the arrangement of the wrapping components of the device reduces the contact of the steel wire with the air after leaving the zinc bath, thereby facilitating the removal of excess zinc liquid on the surface of the steel wire and facilitating the improvement of the efficiency of air-blowing zinc removal from the zinc coating layer of the steel wire.

Description

Technical Field

[0001] The invention relates to the field of air-blowing zinc removal, and in particular to an air-blowing zinc removal device for a zinc coating layer of a hot-dip galvanized steel wire and a control method thereof. Background Art

[0002] Steel wire galvanizing is a surface treatment process used to improve the corrosion resistance and extend the service life of steel wire. During the steel wire galvanizing process, air blowing to remove zinc is a technology used to control the thickness and quality of the galvanized layer.

[0003] During the galvanizing process of steel wire, when the steel wire leaves the zinc bath, the zinc liquid flows downward under the influence of gravity and may form droplets on the surface of the steel wire. These droplets may form uneven zinc nodules during the cooling process. Air blowing can reduce the possibility of the zinc liquid forming droplets on the surface of the steel wire. However, when the steel wire leaves the zinc bath, the zinc liquid on the surface comes into contact with the oxygen in the air, so that a zinc oxide layer is formed on the surface of the steel wire, and the zinc oxide wraps the zinc liquid, which is not conducive to the removal of the zinc liquid. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device for removing zinc from the zinc coating of hot-dip galvanized steel wire by blowing air and a control method thereof.

[0005] In a first aspect, the present invention provides a device for removing zinc from a hot-dip galvanized steel wire galvanized layer by blowing air, comprising a galvanizing pool, a cover plate being fixed on the top of the galvanizing pool, and further comprising:

[0006] A bracket is fixed to the top of the galvanizing tank, and an extension frame that can be raised and lowered is fixed to the top of the bracket;

[0007] A conveying assembly, installed between the interior of the galvanizing pool and the extension frame, for conveying the steel wire through the interior of the galvanizing pool;

[0008] A plurality of groups of air blowing boxes, two of which form a group, the air blowing boxes in the same group are combined to form a ring, and are respectively installed on the top of the bracket through a translation drive assembly, the conveying assembly conveys the steel wire through the two air blowing boxes in the same group, and the air blowing boxes are connected to an external high-pressure inert gas to remove zinc from the steel wire by air blowing;

[0009] A plurality of wrapping assemblies are respectively installed at the bottom of the air blowing box, and two wrapping assemblies at the bottom of the air blowing box in the same group are combined to wrap the steel wire removed from the galvanizing pool;

[0010] The bracket supports and installs the air blowing box, and the steel wire is conveyed through the interior of the galvanizing tank by the conveying assembly, and at the same time, the steel wire passes through the air blowing box;

[0011] The two air blowing boxes in the same group are combined into a whole. During the steel wire adjustment process, the translation drive assembly is started to drive the two air blowing boxes in the same group away from each other, so that the space between the two air blowing boxes in the same group is exposed, so that the steel wire can be smoothly transported between the two air blowing boxes in the same group. After the steel wire adjustment is completed, the translation drive assembly is controlled to start and push the two air blowing boxes to merge, so that the steel wire position is adjusted and passes through the two air blowing boxes in the group for air blowing and zinc removal;

[0012] The outside of the air blowing box is connected to high-pressure inert gas, so that the high-pressure inert gas is sprayed through the air blowing box to form an air knife on the surface of the steel wire. The air knife sprays on the surface of the steel wire from top to bottom, and drives the excess zinc liquid attached to the surface of the steel wire to flow down from the left and right sides of the air knife, thereby avoiding the accumulation of excess zinc liquid on the surface of the steel wire to form drops;

[0013] The wrapping assembly below the air blowing box is connected to the air blowing box at the top and is close to the surface of the zinc liquid at the bottom, so that the high-pressure inert gas flows downward along the trajectory of the wrapping assembly when flowing from top to bottom. After flowing downward, the inert gas drives the gas inside the wrapping assembly, and then the inert gas flows out along the gap between the wrapping assembly and the surface of the zinc liquid, so that the interior of the wrapping assembly is filled with the inert gas, so that after leaving the zinc bath, the steel wire passes through the inside of the wrapping assembly to reach the air blowing box, so that after leaving the zinc bath, the steel wire has less contact with the air, which is beneficial to avoid the oxidation of the zinc liquid caused by the contact of the steel wire with oxygen in the air, which is beneficial to remove the excess zinc liquid on the surface of the steel wire, and is beneficial to improve the efficiency of air blowing zinc removal from the galvanized layer of the steel wire.

[0014] Preferably, the packaging assembly comprises:

[0015] A first connecting frame is fixed to the bottom of the air blowing box;

[0016] A first wrapping shell is fixed to the bottom of the first connecting frame;

[0017] The first connecting frame is used to connect the first wrapping shell and the air blowing box, so that the first wrapping shell forms a wrapping space at the bottom of the air blowing box, so that the high-pressure inert gas flows downward along the trajectory of the wrapping component when flowing from top to bottom, and the inert gas drives the gas inside the wrapping component after flowing downward, and then the inert gas flows out along the gap between the wrapping component and the zinc liquid surface, so that the interior of the wrapping component is filled with inert gas, so that after leaving the zinc bath, the steel wire passes through the inside of the wrapping component to reach the air blowing box, so that after leaving the zinc bath, the steel wire has less contact with the air, which is beneficial to avoid the steel wire from contacting with oxygen in the air and causing oxidation of the zinc liquid, which is beneficial to remove excess zinc liquid on the surface of the steel wire, and is beneficial to improve the efficiency of air blowing zinc removal from the galvanized layer of the steel wire.

[0018] Preferably, the packaging component further comprises:

[0019] An outer expansion shell is slidably mounted on the outer wall of the first wrapping shell;

[0020] A second wrapping shell is fixed to the bottom of the outer expansion shell;

[0021] A lifting drive assembly, installed between the outer expansion shell and the first wrapping shell, for driving the outer expansion shell to move vertically;

[0022] a second temperature sensor, fixed to the bottom of the second packaging shell;

[0023] A control unit, when the second temperature sensor detects that the temperature is lower than a predetermined value, the control unit controls the lifting drive assembly to drive the outer expansion shell to move downward until the second temperature sensor detects that the temperature meets the predetermined value, and the predetermined value is a set value, which is manually input by an input end of the control unit;

[0024] The second temperature sensor is fixed at the bottom of the second enclosing shell, and detects the temperature of the environment where the second temperature sensor is located. When it is detected that the temperature of the environment is lower than a predetermined value, the control unit controls the lifting and driving assembly to drive the outer expansion shell to move downward, thereby driving the second enclosing shell to move downward synchronously, so that the temperature of the environment detected by the second temperature sensor at the bottom of the second enclosing shell increases, until the temperature of the environment detected by the second temperature sensor reaches a predetermined value, at which time the control unit controls the lifting and driving assembly to close, and drives the outer expansion shell to stop moving downward to complete the adjustment;

[0025] In summary, by driving the outer expansion shell and the second wrapping shell to adjust the setting according to the movement of the temperature, the second wrapping shell can be adjusted to a specified height range of the zinc bath surface, which is beneficial to avoid the increase in the height of the second wrapping shell and the liquid level, thereby increasing the contact time between the steel wire and the air, and increasing the amount of zinc oxidized on the surface of the steel wire, so that the surface of the steel wire will still have droplets formed by the solidification of the zinc liquid oxidation, thereby interfering with the effect of blowing away the zinc on the galvanized layer on the surface of the steel wire.

[0026] Preferably, it also includes:

[0027] A plurality of groups of heat-conducting pipes, wherein the heat-conducting pipes in the same group are arranged in a vertical array and are fixedly connected by heat-conducting connecting rings;

[0028] A plurality of second connecting frames, one of the second connecting frames corresponds to a group of the heat conducting pipes, and the second connecting frame is used to fixedly connect the bottom heat conducting pipe with one of the air blowing boxes in each group;

[0029] A vertical rod fixed to the side wall of the second connecting frame;

[0030] A liquid nitrogen box is fixed on the side wall of the vertical rod, and the liquid nitrogen box is connected to the interior of the second connecting frame through a connecting pipe;

[0031] A second connecting frame is provided to connect the heat conducting pipe, and the side wall of the second connecting frame is connected to the liquid nitrogen box through a connecting pipe, so that the gasified nitrogen inside the liquid nitrogen box flows along the connecting pipe to the second connecting frame. The connecting pipe controls the flow rate of the airflow through an electromagnetic valve, so that the nitrogen slowly flows into the inside of the second connecting frame, and gradually flows upward to discharge the air inside the heat conducting pipe due to the air knife on the bottom, so that the air above the air knife is also discharged, which is beneficial to avoid the zinc liquid on the surface of the steel wire from contacting with air above and nitrogen below. The zinc liquid still has the problem of being oxidized and then driven by the air knife to flow downward, resulting in the situation of air blowing to remove zinc that interferes with the galvanized layer on the surface of the steel wire.

[0032] Preferably, it also includes:

[0033] A plurality of heat-insulating rings, two of which form a group, and the heat-insulating rings in the same group are respectively fixed to the inner ring and the outer ring of the heat-conducting connecting ring;

[0034] A condenser is fixed on the side wall of the vertical rod, and the condenser is connected to the heat-conducting pipe at the top through a heat-conducting connecting plate;

[0035] The condenser is connected to the heat pipe through a heat-conducting connecting plate to cool the heat pipe. Insulating rings are arranged at intervals between the heat pipes to reduce the heat conduction efficiency between the heat pipes, so that the temperature of the heat pipes from top to bottom changes in a step-like manner, so that the position of the environment on the surface of the steel wire gradually decreases as it moves, which is beneficial to accelerate the solidification of the zinc liquid on the surface of the steel wire, thereby preventing the zinc liquid from still being fluid, causing the zinc liquid to accumulate downward while flowing, affecting the uniformity of the zinc liquid on the surface of the steel wire.

[0036] Preferably, it also includes:

[0037] A first temperature sensor is fixed on a side wall of the first connecting frame;

[0038] A heating wire, arranged corresponding to the first connecting frame and fixed on the corresponding inner arc side wall of the first connecting frame;

[0039] The first temperature sensor can detect the temperature of the internal environment of the air blowing box. When it is detected that the temperature drops, the control unit controls the heating wire to be energized and start, so that the heating wire heats the internal environment of the air blowing box. After the temperature of the internal environment of the air blowing box rises, the cooling interference of the heat pipe on the internal environment of the air blowing box is reduced.

[0040] Preferably, the air blowing box comprises:

[0041] A plurality of air blowing chambers are provided corresponding to the air blowing boxes and are opened inside the corresponding air blowing boxes. The side walls of the air blowing chambers are all provided with inclined openings. The two inclined openings inside the air blowing boxes of the same group are combined to form a ring shape and are inclined toward the passing steel wire.

[0042] A vertical plate fixed to the end of the air blowing box;

[0043] A horizontal plate fixed to the bottom of the vertical plate;

[0044] A first through slot is provided through the edge of the horizontal plate to convey airflow to the lower part of the horizontal plate in the air blowing box through the first through slot;

[0045] The second through groove is annularly arranged, penetrates through the interior of the horizontal plate, and connects the upper and lower spaces of the horizontal plate;

[0046] When the airflow enters the air blowing chamber along the movable frame, it first passes through the first through slot from the inside of the movable frame to the bottom of the horizontal plate, and then passes through the second through slot to the top of the horizontal plate. The airflow is hindered in the process of passing through the first through slot and the second through slot, so that the airflow is pushed through the second through slot when filling the bottom of the horizontal plate. The second through slot is annular, so that the airflow can enter the top of the horizontal plate in a surrounding manner when passing through the second through slot, and then spray out from the inclined port above the horizontal plate to form an air knife, which is beneficial to the uniform airflow at each position of the air knife, and is beneficial to the uniform removal of zinc liquid on the surface of the steel wire.

[0047] In a second aspect, a control method for a device for removing zinc from a hot-dip galvanized steel wire galvanized layer by air blowing is provided, wherein the control unit comprises a controller, and the control method comprises the following steps:

[0048] A1. obtain cooling information generated from the second temperature sensor when the temperature is detected to be lower than a predetermined value, wherein the predetermined value is a set value inputted by the input terminal of the controller;

[0049] A2. Generate movement control information according to the cooling information, the movement control information is used to control the start of the lifting drive component;

[0050] A3. Sending the movement control information to the lifting drive assembly to control the lifting drive assembly to start driving the outer expansion shell to move downward;

[0051] The second temperature sensor detects the temperature of the bottom of the second wrapping shell and generates cooling information when the detected temperature is lower than a predetermined value. The staff inputs the predetermined value through the input end of the control unit, and the second temperature sensor sends the cooling information to the controller. After receiving the cooling information, the controller generates movement control information according to the cooling information, and then the controller sends the movement control information to the lifting drive component to control the lifting drive component to start driving the outer expansion shell to move downward.

[0052] Preferably, it also includes:

[0053] B1. obtaining low temperature information generated from the first temperature sensor when the temperature is detected to be lower than the cooling temperature, wherein the cooling temperature is a set value inputted by the input terminal of the controller;

[0054] B2. Generate temperature control information according to the low temperature information, the temperature control information is used to control the heating wire to start heating;

[0055] B3. The temperature control information is sent to the heating wire to control the heating wire to start heating;

[0056] The first temperature sensor detects the temperature inside the air blowing box. The first temperature sensor generates low temperature information when it detects that the temperature is lower than the cooling temperature. The staff inputs the cooling temperature through the input end of the controller. The first temperature sensor sends the low temperature information to the controller. After receiving the low temperature information, the controller generates temperature increase control information according to the low temperature information. Then the controller sends the temperature increase control information to the heating wire to control the heating wire to start heating.

[0057] Preferably, step A3 further comprises:

[0058] C1. Obtaining temperature information from the second temperature sensor;

[0059] C2. Get the standard temperature range from the input terminal;

[0060] C3. Compare the temperature information with the standard temperature range, and when the temperature information belongs to the standard temperature range, generate stop control information;

[0061] C4. The stop control information is sent to the lifting drive assembly;

[0062] The second temperature sensor sends the detected temperature information to the controller, and the staff inputs the standard temperature range through the input end of the controller. After receiving the temperature information, the controller compares the temperature information with the standard temperature range. When the temperature information belongs to the standard temperature range, the controller generates a stop control information, and then the controller sends the stop control information to the lifting drive assembly to control the lifting drive assembly to stop descending and determine the position.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] 1. By setting up the wrapping component, the steel wire is less exposed to air after leaving the zinc bath, which helps to avoid the oxidation of zinc liquid caused by the steel wire contacting with oxygen in the air, thereby facilitating the removal of excess zinc liquid on the surface of the steel wire and improving the efficiency of air blowing off zinc from the galvanized layer of the steel wire.

[0065] 2. By setting the outer expansion shell and the second wrapping shell, the second wrapping shell can be adjusted to a specified height range of the zinc bath surface, which is beneficial to avoid the increase in the height between the second wrapping shell and the liquid level, which increases the contact time between the steel wire and the air, and increases the amount of zinc oxidized on the surface of the steel wire. As a result, there will still be droplets on the surface of the steel wire due to the solidification of the zinc liquid oxidation, thereby interfering with the effect of blowing away the zinc from the galvanized layer on the surface of the steel wire.

[0066] 3. Through the setting of heat conduction pipe and connecting pipe, the air above the air knife is also discharged, which is conducive to avoiding the contact of the zinc liquid on the surface of the steel wire with air above and nitrogen below. The zinc liquid still has the situation of being driven downward by the air knife after oxidation, resulting in the interference of air blowing and zinc removal of the galvanized layer on the surface of the steel wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 It is a schematic diagram of the method flow of the present invention.

[0068] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0069] Figure 3 It is a schematic diagram of the structure after the overall section of the present invention.

[0070] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0071] Figure 5 It is a schematic structural diagram of the wrapping assembly of the present invention.

[0072] Figure 6 It is a schematic diagram of the structure inside the packaging component of the present invention.

[0073] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0074] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0075] Fig. 9 For the present invention Figure 6 Schematic diagram of the enlarged structure at D in the middle.

[0076] Fig.10 It is a schematic diagram of the structure of the cross-section of the wrapping assembly of the present invention.

[0077] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure at E in the middle.

[0078] In the figure: 1, galvanizing pool; 101, cover plate; 201, first pulley; 202, second pulley; 203, third pulley; 204, fourth pulley; 3, bracket; 301, extension frame; 4, mobile frame; 401, electric push rod; 402, air blowing box; 403, air blowing cavity; 404, inclined mouth; 405, sealing strip; 501, vertical plate; 502, horizontal plate; 5021, first through groove; 5022, second through groove; 6, first connecting frame; 601, heating wire; 602, first Temperature sensor; 7. first enclosing shell; 8. outer expansion shell; 801. second enclosing shell; 802. mounting frame; 803. motor; 804. gear; 805. rack; 9. second temperature sensor; 1001. limit pin; 1002. limit groove; 11. second connecting frame; 1101. connecting pipe; 1102. liquid nitrogen box; 12. heat conducting pipe; 1201. heat conducting connecting ring; 1202. heat insulating ring; 1203. vertical rod; 1204. condenser; 1205. heat conducting connecting plate. DETAILED DESCRIPTION

[0079] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0080] like Figures 2 to 11 The device for removing zinc from the zinc coating of hot-dip galvanized steel wire by blowing with air comprises a galvanizing pool 1, a covering plate 101 is fixed on the top of the galvanizing pool 1, and further comprises:

[0081] The bracket 3 is fixed to the top of the galvanizing tank 1, and an extension frame 301 that can be raised and lowered is fixed to the top of the bracket 3;

[0082] A conveying assembly, installed between the interior of the galvanizing pool 1 and the extension frame 301, for conveying the steel wire through the interior of the galvanizing pool 1;

[0083] Multiple groups of air blowing boxes 402, two air blowing boxes 402 form a group, and the air blowing boxes 402 in the same group are combined into a ring shape, and are respectively installed on the top of the bracket 3 through a translation drive assembly, and the conveying assembly conveys the steel wire through the two air blowing boxes 402 in the same group, and the air blowing boxes 402 are connected to the external high-pressure inert gas to blow and remove zinc from the steel wire;

[0084] A plurality of wrapping assemblies are respectively installed at the bottom of the air blowing box 402, and two wrapping assemblies at the bottom of the same group of air blowing boxes 402 are combined to wrap the steel wire removed from the galvanizing pool;

[0085] During the galvanizing process of steel wire, when the steel wire leaves the zinc bath, the zinc liquid flows downward under the influence of gravity and may form droplets on the surface of the steel wire. These droplets may form uneven zinc nodules during the cooling process. Air blowing can reduce the possibility of droplets forming on the surface of the steel wire. However, when the steel wire leaves the zinc bath, the zinc liquid on the surface contacts with oxygen in the air, so that a zinc oxide layer is formed on the surface of the steel wire, which makes the zinc oxide wrap around the zinc liquid, which is not conducive to the removal of the zinc liquid.

[0086] The support 3 supports and installs the air blowing box 402, and the steel wire is conveyed through the interior of the galvanizing pool 1 by the conveying assembly, and at the same time, the steel wire passes through the air blowing box 402;

[0087] The two air blowing boxes 402 in the same group are combined into a whole. During the steel wire adjustment process, the translation drive component is started to drive the two air blowing boxes 402 in the same group away from each other, so that the space between the two air blowing boxes 402 in the same group is exposed, so that the steel wire can be smoothly transported between the two air blowing boxes 402 in the same group. After the steel wire adjustment is completed, the translation drive component is controlled to start and push the two air blowing boxes 402 to merge, so that the steel wire position adjustment is completed and the zinc is removed by air blowing between the two air blowing boxes 402 in the group.

[0088] The outside of the air blowing box 402 is connected to high-pressure inert gas, so that the high-pressure inert gas is sprayed through the air blowing box 402 to form an air knife on the surface of the steel wire. The air knife sprays on the surface of the steel wire from top to bottom, and drives the excess zinc liquid attached to the surface of the steel wire to flow down under the air knife, thereby avoiding the accumulation of excess zinc liquid on the surface of the steel wire to form droplets;

[0089] The wrapping assembly below the air blowing box 402 is connected to the air blowing box 402 at the top and is close to the surface of the zinc liquid at the bottom, so that the high-pressure inert gas flows downward along the trajectory of the wrapping assembly when flowing from top to bottom. After the inert gas flows downward, it drives the gas inside the wrapping assembly, and then the inert gas flows out along the gap between the wrapping assembly and the surface of the zinc liquid, so that the interior of the wrapping assembly is filled with the inert gas, so that after the steel wire leaves the zinc bath, it passes through the inside of the wrapping assembly to reach the air blowing box 402, so that after the steel wire leaves the zinc bath, the contact with the air is reduced, which is beneficial to avoid the oxidation of the zinc liquid caused by the contact between the steel wire and the oxygen in the air, which is beneficial to remove the excess zinc liquid on the surface of the steel wire, and is beneficial to improve the efficiency of air blowing zinc removal from the galvanized layer of the steel wire.

[0090] As an optional embodiment, the conveying component includes:

[0091] A plurality of first pulleys 201 are arranged in a linear array and are rotatably mounted on the edge of one end of the galvanizing pool 1;

[0092] A plurality of second pulleys 202 and a plurality of third pulleys 203 are arranged in a linear array and are rotatably installed inside the galvanizing pool 1;

[0093] A plurality of fourth pulleys 204 are arranged in a linear array and are rotatably mounted on the top of the extension frame 301;

[0094] The steel wire passes through the first pulley 201, the second pulley 202, the third pulley 203, and the fourth pulley 204 in sequence to transport the steel wire.

[0095] As an optional embodiment, the translation drive assembly includes:

[0096] The movable frame 4 is arranged corresponding to the air blowing box 402 and is in communication with the air blowing box 402;

[0097] The electric push rod 401 is fixed to the top of the bracket 3 and pushes the moving frame 4 to move through the telescopic rod;

[0098] After the electric push rod 401 is started, it pushes the moving frame 4 to move through the telescopic rod, and the moving frame 4 drives the air blowing box 402 to move, thereby adjusting the position of the steel wire;

[0099] The interior of the moving rack 4 is connected to the gas blowing box 402 and the external high-pressure inert gas, so that the external high-pressure inert gas is connected to the gas blowing box 402 through the moving rack 4 .

[0100] As an optional embodiment, sealing strips 405 are fixed on opposite sides of two air blowing boxes 402 in the same group, and the sealing strips 405 on the air blowing boxes 402 in the same group are snap-connected;

[0101] The setting of the sealing strip 405 enables the two air blowing boxes 402 in the same group to seal and fill the merged gap after being merged, which is beneficial to reduce the air flow spraying from the gap between the two air blowing boxes 402, so as to reduce the dispersion of the high-pressure inert gas pressure, thereby facilitating the high-pressure inert gas to spray toward the steel wire to form an air knife to treat the zinc liquid on the surface of the steel wire.

[0102] As an optional embodiment, the packaging component includes:

[0103] The first connecting frame 6 is fixed to the bottom of the air blowing box 402;

[0104] The first wrapping shell 7 is fixed to the bottom of the first connecting frame 6;

[0105] The first connecting frame 6 is used to connect the first wrapping shell 7 and the air blowing box 402, so that the first wrapping shell 7 forms a wrapping space at the bottom of the air blowing box 402, so that the high-pressure inert gas flows downward along the trajectory of the wrapping component when flowing from top to bottom, and the inert gas drives the gas inside the wrapping component after flowing downward, and then the inert gas flows out along the gap between the wrapping component and the zinc liquid surface, so that the interior of the wrapping component is filled with inert gas, so that after leaving the zinc bath, the steel wire passes through the inside of the wrapping component to reach the air blowing box 402, so that after leaving the zinc bath, the steel wire has less contact with the air, which is beneficial to avoid the steel wire from contacting with oxygen in the air and causing oxidation of the zinc liquid, which is beneficial to remove excess zinc liquid on the surface of the steel wire, and is beneficial to improve the efficiency of air blowing zinc removal from the galvanized layer of the steel wire.

[0106] As an optional embodiment, the packaging component further includes:

[0107] The outer expansion shell 8 is slidably mounted on the outer wall of the first wrapping shell 7;

[0108] The second wrapping shell 801 is fixed to the bottom of the outer expansion shell 8;

[0109] A lifting drive assembly is installed between the outer expansion shell 8 and the first wrapping shell 7, and is used to drive the outer expansion shell 8 to move vertically;

[0110] A second temperature sensor 9 is fixed to the bottom of the second encapsulating shell 801;

[0111] The control unit controls the lifting drive assembly to drive the outer expansion shell 8 to move downward when the second temperature sensor 9 detects that the temperature is lower than a predetermined value, until the second temperature sensor 9 detects that the temperature meets a predetermined value, and the predetermined value is a set value, which is manually input by the input end of the control unit;

[0112] The amount of zinc bath in the galvanizing pool 1 changes as the steel wire is continuously galvanized, so that the liquid level of the zinc bath changes, thereby changing the distance between the liquid level and the bottom of the first encapsulating shell 7. When the zinc bath liquid level drops, the distance between the liquid level and the bottom of the first encapsulating shell 7 increases, thereby increasing the time the steel wire is exposed to the air, increasing the amount of zinc oxidized on the surface of the steel wire, and causing droplets to still exist on the surface of the steel wire due to the solidification of the oxidized zinc liquid, thereby interfering with the effect of blowing away zinc from the galvanized layer on the surface of the steel wire;

[0113] The second temperature sensor 9 is fixed at the bottom of the second encapsulating shell 801, and detects the temperature of the environment where the second temperature sensor 9 is located. When it is detected that the temperature of the environment is lower than a predetermined value, the control unit controls the lifting and driving assembly to drive the outer expansion shell 8 to move downward, thereby driving the second encapsulating shell 801 to move downward synchronously, so that the temperature of the environment detected by the second temperature sensor 9 at the bottom of the second encapsulating shell 801 increases, until the temperature of the environment detected by the second temperature sensor 9 reaches a predetermined value, at which time the control unit controls the lifting and driving assembly to close, and drives the outer expansion shell 8 to stop moving downward to complete the adjustment;

[0114] The preset value here is an input value, which is manually input by the input terminal of the control unit and is adjusted and input by the staff according to the temperature at the specified height of the liquid surface. For example, if the bottom of the second encapsulating shell 801 needs to be adjusted to m to n centimeters from the surface of the zinc bath, and the temperature range of m to n centimeters from the surface of the zinc liquid is a to b degrees Celsius, then the preset value here is a to b degrees Celsius;

[0115] In summary, by driving the outer expansion shell 8 and the second wrapping shell 801 to move and adjust the settings according to the temperature, the second wrapping shell 801 can be adjusted to a specified height range on the surface of the zinc bath, which is beneficial to avoid the increase in the height of the second wrapping shell 801 and the liquid level, thereby increasing the contact time between the steel wire and the air, and increasing the amount of zinc oxidized on the surface of the steel wire, so that the surface of the steel wire will still have droplets formed by solidification due to the oxidation of the zinc liquid, thereby interfering with the effect of blowing zinc off the galvanized layer on the surface of the steel wire.

[0116] As an optional embodiment, a plurality of limiting pins 1001 are fixed to one end of the outer expansion shell 8 facing another outer expansion shell 8 in the same group, and a plurality of limiting grooves 1002 are fixed to the other end, and the limiting grooves 1002 are plugged and matched with the limiting pins 1001;

[0117] The plug-in matching of the limit groove 1002 and the limit pin 1001 can promote the sealing and synchronous movement between the outer expansion shell 8, thereby reducing the entry of air from the outer expansion shell 8 and reducing the interference with the effect of blowing away zinc on the galvanized layer on the surface of the steel wire.

[0118] As an optional embodiment, the lifting drive assembly includes:

[0119] A mounting frame 802 is fixed to the top of the outer wall of the outer expansion shell 8;

[0120] The motor 803 is fixed inside the mounting frame 802, and a gear 804 is fixed to the end of the output shaft of the motor 803;

[0121] The rack 805 is fixed on the outer wall of the outer expansion shell 8, and the rack 805 is meshed with the gear 804;

[0122] The mounting frame 802 can install the motor 803. After the motor 803 is started, the output shaft drives the gear 804 to rotate. The gear 804 meshes with the rack 805, so that the gear 804 rolls on the track of the rack 805, thereby driving the mounting frame 802 to move vertically, thereby driving the outer expansion shell 8 to move vertically.

[0123] As an optional embodiment, the control unit includes a controller.

[0124] As an optional embodiment, it also includes:

[0125] Multiple groups of heat-conducting pipes 12, the heat-conducting pipes 12 in the same group are arranged in a vertical array, and the heat-conducting pipes 12 in the same group are fixedly connected by heat-conducting connecting rings 1201;

[0126] A plurality of second connecting frames 11, one second connecting frame 11 corresponds to a group of heat conducting pipes 12, and the second connecting frame 11 is used to fixedly connect the bottom heat conducting pipe 12 with one of the air blowing boxes 402 in each group;

[0127] The vertical rod 1203 is fixed on the side wall of the second connecting frame 11;

[0128] The liquid nitrogen box 1102 is fixed on the side wall of the vertical rod 1203, and the liquid nitrogen box 1102 is connected to the interior of the second connecting frame 11 through the connecting pipe 1101;

[0129] The air knife formed inside the air blowing box 402 is tilted downward, so that a conical space is formed above the air knife. Air exists in this space. If the air contacts the zinc liquid on the surface of the steel wire at the bottom of the conical space, the air knife will be directed toward the surface of the steel wire. The zinc liquid on the surface of the steel wire contacts the air above and the nitrogen below, so that the zinc liquid is still driven by the air knife to flow downward after oxidation, resulting in interference with the air blowing of the zinc coating on the surface of the steel wire.

[0130] The second connecting frame 11 is provided to connect the heat conducting pipe 12, and the side wall of the second connecting frame 11 is connected to the liquid nitrogen box 1102 through the connecting pipe 1101, so that the gasified nitrogen in the liquid nitrogen box 1102 flows along the connecting pipe 1101 to the second connecting frame 11, and the connecting pipe 1101 controls the flow rate of the airflow through the electromagnetic valve, so that the nitrogen slowly flows into the inside of the second connecting frame 11, and then gradually flows upward to discharge the air inside the heat conducting pipe 12 due to the air knife on the bottom, so that the air above the air knife is also discharged, which is beneficial to avoid the zinc liquid on the surface of the steel wire from contacting with the air above and contacting with the nitrogen below. The zinc liquid still has the situation that it is driven by the air knife to flow downward after oxidation, resulting in the situation that the zinc is blown away by the air to interfere with the zinc plating layer on the surface of the steel wire.

[0131] As an optional embodiment, it also includes:

[0132] A plurality of heat-insulating rings 1202, two heat-insulating rings 1202 form a group, and the heat-insulating rings 1202 in the same group are respectively fixed to the inner ring and the outer ring of the heat-conducting connecting ring 1201;

[0133] The condenser 1204 is fixed on the side wall of the vertical rod 1203, and the condenser 1204 is connected to the top heat pipe 12 through the heat conductive connecting plate 1205;

[0134] After the zinc liquid on the surface of the steel wire is blown away by air, if the ambient temperature is still very high, the solidification speed of the zinc liquid on the surface of the steel wire will be slowed down, so that the zinc liquid still has fluidity, and the zinc liquid accumulates downwards while flowing, affecting the uniformity of the zinc liquid on the surface of the steel wire;

[0135] The condenser 1204 is connected to the heat-conducting tube 12 through the heat-conducting connecting plate 1205 to cool the heat-conducting tube 12. The heat-insulating ring 1202 is arranged at intervals between each heat-conducting tube 12 to reduce the heat conduction efficiency between the heat-conducting tubes 12, so that the temperature of the heat-conducting tube 12 from top to bottom changes in a step-like manner, so that the position of the environment where the steel wire surface is located gradually decreases as it moves, which is beneficial to accelerate the solidification of the zinc liquid on the steel wire surface, thereby preventing the zinc liquid from still being fluid, causing the zinc liquid to accumulate downward while flowing, affecting the uniformity of the zinc liquid on the steel wire surface.

[0136] As an optional embodiment, it also includes:

[0137] A first temperature sensor 602 is fixed on a side wall of the first connecting frame 6;

[0138] The heating wire 601 is arranged corresponding to the first connecting frame 6 and fixed on the inner arc side wall of the corresponding first connecting frame 6;

[0139] When the heat conducting tube 12 cools the steel wire, the cooling of the heat conducting tube 12 interferes with the internal environment of the air blowing box 402, thereby reducing the fluidity of the zinc liquid on the surface of the steel wire inside the air blowing box 402, which interferes with the air knife's air blowing and zinc removal efficiency on the steel wire.

[0140] The first temperature sensor 602 can detect the temperature of the internal environment of the air blowing box 402. When it is detected that the temperature drops, the control unit controls the heating wire 601 to be powered on, so that the heating wire 601 heats the internal environment of the air blowing box 402. After the temperature of the internal environment of the air blowing box 402 rises, the cooling interference of the heat pipe 12 on the internal environment of the air blowing box 402 is reduced.

[0141] As an optional embodiment, the air blowing box 402 includes:

[0142] A plurality of air blowing chambers 403 are provided corresponding to the air blowing boxes 402 and are opened inside the corresponding air blowing boxes 402. The side walls of the air blowing chambers 403 are all provided with inclined openings 404. The two inclined openings 404 inside the same group of air blowing boxes 402 are combined to form a ring shape and are inclined toward the passing steel wire.

[0143] A vertical plate 501 is fixed to the end of the air blowing box 402;

[0144] The horizontal plate 502 is fixed to the bottom of the vertical plate 501;

[0145] The first through slot 5021 is formed through the edge of the horizontal plate 502 to deliver airflow to the lower part of the horizontal plate 502 in the air blowing box 402 through the first through slot 5021;

[0146] The second through groove 5022 is annularly arranged, penetrates through the interior of the horizontal plate 502, and communicates with the space above and below the horizontal plate 502;

[0147] When the airflow enters the air blowing chamber 403 along the movable frame 4, it first passes through the first through slot 5021 from the inside of the movable frame 4 to the bottom of the horizontal plate 502, and then passes through the second through slot 5022 to the top of the horizontal plate 502. The airflow is hindered in the process of passing through the first through slot 5021 and the second through slot 5022, so that the airflow is pushed through the second through slot 5022 when filling the bottom of the horizontal plate 502. The second through slot 5022 is arranged in an annular shape, so that the airflow can enter the top of the horizontal plate 502 in a surrounding manner when passing through the second through slot 5022, and then be ejected from the inclined port 404 above the horizontal plate 502 to form an air knife, which is beneficial to the uniform airflow at each position of the air knife, and is beneficial to the uniform removal of zinc liquid on the surface of the steel wire.

[0148] like Figure 1 A control method for a hot-dip galvanized steel wire galvanized layer gas blowing zinc removal device is shown, the control unit includes a controller, and the control method includes the following steps:

[0149] A1. Get cooling information generated from the second temperature sensor 9 when the temperature is detected to be lower than a predetermined value, the predetermined value is a set value, which is input from the input terminal of the controller;

[0150] A2. Generate movement control information according to the cooling information, and the movement control information is used to control the start of the lifting drive component;

[0151] A3. The movement control information is sent to the lifting drive assembly to control the lifting drive assembly to start driving the outer expansion shell 8 to move downward;

[0152] The second temperature sensor 9 detects the temperature at the bottom of the second wrapping shell 801 and generates cooling information when the detected temperature is lower than a predetermined value. The staff inputs the predetermined value through the input end of the control unit, and the second temperature sensor 9 sends the cooling information to the controller. After receiving the cooling information, the controller generates movement control information according to the cooling information, and then the controller sends the movement control information to the lifting drive component to control the lifting drive component to start driving the outer expansion shell 8 to move downward.

[0153] As an optional embodiment, it also includes:

[0154] B1. Obtaining low temperature information generated from the first temperature sensor 602 when the temperature is detected to be lower than the cooling temperature, the cooling temperature being a set value inputted by the input terminal of the controller;

[0155] B2. Generate heating control information according to low temperature information, and the heating control information is used to control the heating wire 601 to start heating;

[0156] B3. The heating control information is sent to the heating wire 601 to control the heating wire 601 to start heating;

[0157] The first temperature sensor 602 detects the temperature inside the air blowing box 402. The first temperature sensor 602 generates low temperature information when it detects that the temperature is lower than the cooling temperature. The staff inputs the cooling temperature through the input end of the controller. The first temperature sensor 602 sends the low temperature information to the controller. After receiving the low temperature information, the controller generates temperature increase control information according to the low temperature information. Then the controller sends the temperature increase control information to the heating wire 601 to control the heating wire 601 to start heating.

[0158] As an optional embodiment, step A3 further includes:

[0159] C1. Obtaining temperature information from the second temperature sensor 9;

[0160] C2. Get the standard temperature range from the input terminal;

[0161] C3. Compare the temperature information with the standard temperature range, and generate stop control information when the temperature information belongs to the standard temperature range;

[0162] C4. Sending the stop control information to the lifting drive assembly;

[0163] The second temperature sensor 9 sends the detected temperature information to the controller. The staff inputs the standard temperature range through the input end of the controller. After receiving the temperature information, the controller compares the temperature information with the standard temperature range. When the temperature information belongs to the standard temperature range, the controller generates a stop control information. Then the controller sends the stop control information to the lifting drive component to control the lifting drive component to stop descending and determine the position.

[0164] The working principle of the present invention is as follows: the bracket 3 supports and installs the air blowing box 402, and the steel wire is conveyed through the interior of the galvanizing pool 1 by the conveying assembly, and at the same time, the steel wire passes through the air blowing box 402;

[0165] The two air blowing boxes 402 in the same group are combined into a whole. During the steel wire adjustment process, the translation drive component is started to drive the two air blowing boxes 402 in the same group away from each other, so that the space between the two air blowing boxes 402 in the same group is exposed, so that the steel wire can be smoothly transported between the two air blowing boxes 402 in the same group. After the steel wire adjustment is completed, the translation drive component is controlled to start and push the two air blowing boxes 402 to merge, so that the steel wire position adjustment is completed and the zinc is removed by air blowing between the two air blowing boxes 402 in the group.

[0166] The outside of the air blowing box 402 is connected to high-pressure inert gas, so that the high-pressure inert gas is sprayed through the air blowing box 402 to form an air knife on the surface of the steel wire. The air knife sprays on the surface of the steel wire from top to bottom, and drives the excess zinc liquid attached to the surface of the steel wire to flow down under the air knife, thereby avoiding the accumulation of excess zinc liquid on the surface of the steel wire to form droplets;

[0167] The wrapping assembly below the air blowing box 402 is connected to the air blowing box 402 at the top and is close to the surface of the zinc liquid at the bottom, so that the high-pressure inert gas flows downward along the trajectory of the wrapping assembly when flowing from top to bottom. After the inert gas flows downward, it drives the gas inside the wrapping assembly, and then the inert gas flows out along the gap between the wrapping assembly and the surface of the zinc liquid, so that the interior of the wrapping assembly is filled with the inert gas, so that after the steel wire leaves the zinc bath, it passes through the inside of the wrapping assembly to reach the air blowing box 402, so that after the steel wire leaves the zinc bath, the contact with the air is reduced, which is beneficial to avoid the oxidation of the zinc liquid caused by the contact between the steel wire and the oxygen in the air, which is beneficial to remove the excess zinc liquid on the surface of the steel wire, and is beneficial to improve the efficiency of air blowing zinc removal from the galvanized layer of the steel wire.

[0168] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A device for removing zinc from the zinc coating of hot-dip galvanized steel wire by blowing air, comprising a galvanizing pool (1), a covering plate (101) being fixed on the top of the galvanizing pool (1), characterized in that: Also includes: A bracket (3) is fixed to the top of the galvanizing pool (1), and an extension frame (301) that can be raised and lowered is fixed to the top of the bracket (3); A conveying assembly installed between the interior of the galvanizing pool (1) and the extension frame (301), and used for conveying the steel wire through the interior of the galvanizing pool (1); A plurality of groups of air blowing boxes (402), two of the air blowing boxes (402) form a group, the air blowing boxes (402) in the same group are combined to form a ring, and are respectively installed on the top of the bracket (3) through a translation drive assembly, the conveying assembly conveys the steel wire through the two air blowing boxes (402) in the same group, and the air blowing boxes (402) are connected to an external high-pressure inert gas to perform air blowing to remove zinc from the steel wire; A plurality of wrapping components are respectively installed at the bottom of the air blowing box (402), and two wrapping components at the bottom of the air blowing box (402) of the same group are combined to wrap the steel wire removed from the galvanizing pool; The package assembly comprises: A first connecting frame (6) fixed to the bottom of the air blowing box (402); A first wrapping shell (7) fixed to the bottom of the first connecting frame (6); The package assembly also includes: An outer expansion shell (8) is slidably mounted on the outer wall of the first wrapping shell (7); A second wrapping shell (801) is fixed to the bottom of the outer expansion shell (8); A lifting drive assembly, installed between the outer expansion shell (8) and the first wrapping shell (7), and used for driving the outer expansion shell (8) to move vertically; A second temperature sensor (9) fixed to the bottom of the second packaging shell (801); a control unit, wherein when the second temperature sensor (9) detects that the temperature is lower than a predetermined value, the control unit controls the lifting drive assembly to drive the outer expansion shell (8) to move downward until the second temperature sensor (9) detects that the temperature meets the predetermined value, the predetermined value being a set value manually inputted by an input terminal of the control unit; The air-blowing zinc removal device also includes: A plurality of groups of heat-conducting pipes (12), wherein the heat-conducting pipes (12) in the same group are arranged in a vertical array, and the heat-conducting pipes (12) in the same group are fixedly connected via heat-conducting connecting rings (1201); A plurality of second connecting frames (11), one second connecting frame (11) corresponding to a group of the heat conducting pipes (12), the second connecting frame (11) being used to fixedly connect the bottommost heat conducting pipe (12) with one of the air blowing boxes (402) in each group; A vertical rod (1203) fixed on a side wall of the second connecting frame (11); A liquid nitrogen box (1102) is fixed on the side wall of the vertical rod (1203), and the liquid nitrogen box (1102) is connected to the interior of the second connecting frame (11) through a connecting pipe (1101); The air blowing box (402) comprises: A plurality of air blowing cavities (403) are arranged corresponding to the air blowing boxes (402) and are opened inside the corresponding air blowing boxes (402). The side walls of the air blowing cavities (403) are each provided with an inclined opening (404). The two inclined openings (404) inside the same group of air blowing boxes (402) are combined to form a ring shape and are inclined toward the passing steel wire. A vertical plate (501) fixed to the end of the air blowing box (402); A horizontal plate (502) fixed to the bottom of the vertical plate (501); A first through groove (5021) is provided through the edge of the transverse plate (502) so as to convey airflow to the bottom of the transverse plate (502) inside the air blowing box (402) through the first through groove (5021); The second through groove (5022) is arranged in an annular shape, penetrates through the interior of the horizontal plate (502), and communicates with the space above and below the horizontal plate (502).

2. The device for removing zinc from the zinc coating of hot-dip galvanized steel wire according to claim 1, characterized in that: Also includes: A plurality of heat-insulating rings (1202), two of the heat-insulating rings (1202) forming a group, and the heat-insulating rings (1202) in the same group are respectively fixed to the inner ring and the outer ring of the heat-conducting connecting ring (1201); The condenser (1204) is fixed on the side wall of the vertical rod (1203), and the condenser (1204) is connected to the heat-conducting pipe (12) at the top via a heat-conducting connecting plate (1205).

3. The device for removing zinc from the zinc coating of hot-dip galvanized steel wire according to claim 2, characterized in that: Also includes: A first temperature sensor (602) is fixed on a side wall of the first connecting frame (6); The heating wire (601) is arranged corresponding to the first connecting frame (6) and is fixed on the corresponding inner arc side wall of the first connecting frame (6).

4. A control method for a device for removing zinc from a hot-dip galvanized steel wire by blowing air, applicable to a device for removing zinc from a hot-dip galvanized steel wire by blowing air as claimed in claim 3, characterized in that: The control unit includes a controller, and the control method includes the following steps: A1. obtaining cooling information generated by the second temperature sensor (9) when the temperature is detected to be lower than a predetermined value, wherein the predetermined value is a set value inputted from an input end of the controller; A2. Generate movement control information according to the cooling information, the movement control information is used to control the start of the lifting drive component; A3. Sending the movement control information to the lifting drive component to control the lifting drive component to start driving the outer expansion shell (8) to move downward.

5. The control method of a device for removing zinc from the zinc coating of hot-dip galvanized steel wire according to claim 4, characterized in that: Also includes: B1. acquiring low temperature information generated from the first temperature sensor (602) when detecting that the temperature is lower than the cooling temperature, wherein the cooling temperature is a set value inputted from the input end of the controller; B2. generating temperature increase control information according to the low temperature information, wherein the temperature increase control information is used to control the heating wire (601) to start heating; B3. Sending the temperature increase control information to the heating wire (601) to control the heating wire (601) to start heating.

6. The control method of a device for removing zinc from the zinc coating of hot-dip galvanized steel wire according to claim 4, characterized in that: Step A3 also includes: C1. Obtaining temperature information from the second temperature sensor (9); C2. Get the standard temperature range from the input terminal; C3. Compare the temperature information with the standard temperature range, and when the temperature information belongs to the standard temperature range, generate stop control information; C4. Sending the stop control information to the lifting drive component.

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