Blowing device of hot galvanizing equipment and hot galvanizing equipment

Abstract

The utility model relates to the technical field of hot galvanizing equipment, in particular to an air blowing device of hot galvanizing equipment and the hot galvanizing equipment, the air blowing device comprises a support, the support comprises two cross beams, and the two cross beams are arranged in parallel at the same height and located above a hot galvanizing tank of the hot galvanizing equipment; the two connecting plates are movably connected to the two cross beams in the horizontal direction respectively; and the two ends of the air knife are rotatably connected to the two connecting plates correspondingly so as to adjust the air outlet direction of the air knife, and the air knife is driven by the connecting plates to move on the cross beam so as to adjust the distance between the air knife and the hot-dip galvanized part. According to the air blowing device, the distance between the air knife and the hot-dip galvanized part can be adjusted by moving the connecting plate on the cross beam, so that the pressure of nitrogen blown to the surface of the hot-dip galvanized part can be adjusted, the air outlet direction of the air knife is adjusted by rotating the air knife on the connecting plate, and the quality of the hot-dip galvanized part is further guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of hot-dip galvanizing equipment, and particularly to a blowing device and a hot-dip galvanizing equipment of hot-dip galvanizing equipment. Background Art

[0002] Hot-dip galvanizing is one of the commonly used methods for anti-corrosion treatment of steel components. By immersing the steel components in zinc liquid, an anti-corrosion galvanized layer is formed on the surface of the steel components. Usually, after the steel components are immersed in the zinc liquid, a blowing process is required to ensure the consistency of the thickness of the anti-corrosion galvanized layer.

[0003] For example, the prior art proposes a nitrogen gas supply device and its usage method for a hot-dip galvanizing air knife (201711047955.2). It includes a fan, an air knife, a nitrogen gas source, an electric butterfly valve, a pressure reducing and stabilizing valve, a pressure gauge, a front pressure transmitter, a pressure relief valve, a stop valve, a rear pressure transmitter, a switching electric butterfly valve A, a switching manual butterfly valve A, a switching manual butterfly valve B, a switching electric butterfly valve B, a first nitrogen gas storage tank, a second nitrogen gas storage tank, and an atmosphere outlet. The invention has high coating quality and high production efficiency.

[0004] Although through the above prior art, the quality of hot-dip galvanizing is improved by using nitrogen gas and adjusting the air knife air pressure. However, in actual production, the air outlet direction of the air knife is also one of the important factors affecting the quality of the galvanized layer. Based on this, how to control the air knife air pressure and adjust the air outlet direction of the air knife is a problem that those skilled in the art need to consider. Utility Model Content

[0005] To solve the above technical problems, an embodiment of the present disclosure provides a blowing device for a hot-dip galvanizing equipment, including: a bracket, the bracket includes two cross beams, the two cross beams are arranged parallel at the same height and are located above the hot-dip galvanizing tank of the hot-dip galvanizing equipment; two connecting plates, the two connecting plates are respectively movably connected to the two cross beams in the horizontal direction; and an air knife, both ends of the air knife are respectively rotatably connected to the two connecting plates to adjust the air outlet direction of the air knife, and move on the cross beam under the drive of the connecting plates to adjust the distance from the hot-dip galvanized part.

[0006] In some embodiments, the blowing mechanism includes a cylinder, the cylinder is arranged on the cross beam, and its driving end is connected to the connecting plate to drive the connecting plate to move.

[0007] In some embodiments, the blowing mechanism further includes a motor and a rotating shaft, both ends of the rotating shaft are respectively rotatably connected to the two connecting plates, the air knife is installed on the rotating shaft, and the motor is connected to the end of the rotating shaft to drive the rotating shaft to rotate.

[0008] In some embodiments, the rotating shaft is rotatably connected to the connecting plate through a bearing.

[0009] In some embodiments, the air blowing device further includes a nitrogen preparation mechanism, and the nitrogen preparation mechanism is communicated with the air knife through a trachea for providing nitrogen to the air knife.

[0010] In some embodiments, a valve is provided on the trachea.

[0011] In some embodiments, a pressure sensor is further provided on the nitrogen trachea.

[0012] In some embodiments, a filter screen is further provided on the nitrogen trachea.

[0013] In some embodiments, the bracket further includes legs, and the cross beam is arranged on the top ends of the legs.

[0014] On the other hand, the embodiments of the present disclosure further provide a hot-dip galvanizing device, including a hot-dip galvanizing tank and the air blowing device of the above-mentioned hot-dip galvanizing device.

[0015] According to the above technical solution, the present disclosure provides an air blowing device and a hot-dip galvanizing device for a hot-dip galvanizing device. The air blowing device can adjust the distance between the air knife and the hot-dip galvanized part by moving on the cross beam through the connecting plate, so as to adjust the pressure of the nitrogen blown onto the surface of the hot-dip galvanized part. By rotating the air knife on the connecting plate, the air outlet direction of the air knife is adjusted, further ensuring the quality of the hot-dip galvanized part. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a plan view of the air blowing device according to an embodiment of the present disclosure;

[0018] Figure 2 is Figure 1 the A node diagram of

[0019] Figure 3 is a side view of the air blowing device according to an embodiment of the present disclosure;

[0020] Figure 4 is a front view of the air blowing device according to an embodiment of the present disclosure.

[0021] Description of the Reference Numerals:

[0022] 1. Cross beam; 2. Connecting plate; 3. Air knife; 4. Cylinder; 5. Motor; 6. Rotating shaft; 7. Leg; 8. Hot-dip galvanizing tank; 9. Hot-dip galvanized part; X. Horizontal direction. Detailed Embodiments

[0023] The following further describes in detail the embodiments of the present disclosure in conjunction with the accompanying drawings and embodiments. The detailed descriptions and drawings of the following embodiments are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, not limited to the specific embodiments disclosed herein, but including all technical solutions falling within the scope of the claims.

[0024] These embodiments of the present disclosure are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these embodiments should be construed as merely exemplary, rather than as limitations.

[0025] It should be noted that in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality" is greater than or equal to two; the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In addition, the "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0027] It should also be noted that in the description of the present disclosure, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0028] All terms used in this disclosure have the same meanings as those understood by those of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such herein.

[0029] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0030] As mentioned in the above background art, hot-dip galvanizing is one of the commonly used methods for anti-corrosion treatment of steel members. By immersing the steel members in zinc liquid, an anti-corrosion galvanized layer is formed on the surface of the steel members. Usually, after the steel members are immersed in the zinc liquid, a blowing process is required to ensure the consistency of the thickness of the anti-corrosion galvanized layer. Although through the above prior art, the quality of hot-dip galvanizing has been improved by using nitrogen and adjusting the air knife air pressure. However, in actual production, the air outlet direction of the air knife is also one of the important factors affecting the quality of the galvanized layer. For this reason, the inventors of the present application provide a blowing device for a hot-dip galvanizing device and a hot-dip galvanizing device in one or more embodiments. The blowing device can adjust the distance between the air knife and the galvanized part by moving on the cross beam through a connecting plate, so as to adjust the pressure of the nitrogen blown onto the surface of the hot-dip galvanized part. By rotating the air knife on the connecting plate, the air outlet direction of the air knife is adjusted, further ensuring the quality of the hot-dip galvanized part. One or more problems in the prior art are solved.

[0031] In response to the technical problems raised above, the present utility model provides a blowing device for a hot-dip galvanizing device, as Figure 1 shown, including: a bracket, the bracket includes two cross beams 1, the two cross beams 1 are arranged parallel at the same height and are located above the hot-dip galvanizing tank 8 of the hot-dip galvanizing device; two connecting plates 2, the two connecting plates 2 are respectively movably connected to the two cross beams 1 along the horizontal direction X; an air knife 3, both ends of the air knife 3 are respectively rotatably connected to the two connecting plates 2 to adjust the air outlet direction of the air knife 3, and move on the cross beam 1 under the drive of the connecting plate 2 to adjust its distance from the hot-dip galvanized part 9.

[0032] Specifically, according to the requirements of different hot-dip galvanized parts 9, the thickness requirements of the galvanized layer on their surfaces are also different. According to the requirements of the galvanized layer thickness, when the nitrogen gas at the air outlet of the air knife 3 is at a constant pressure, by moving the connecting plate 2 on the cross beam 1, the distance between the air knife 3 and the hot-dip galvanized part 9 is adjusted, so as to adjust the pressure of the nitrogen gas reaching the surface of the hot-dip galvanized part 9. At the same time, by rotating the air knife 3 on the connecting piece, the angle of the air outlet direction of the air knife 3 is adjusted to meet the requirements of the galvanized layer thickness. Further, two air knives 3 can be provided. After the hot-dip galvanized part 9 immersed in the zinc bath 8 is taken out and moves upward, the two air knives 3 blow air to the two opposite surfaces of the hot-dip galvanized part 9 respectively, thus improving the production efficiency. In addition, the air source of the air knife 3 adopts nitrogen gas, avoiding the problem that the quality of the hot-dip galvanized part 9 is affected by the oxidation of the high-temperature zinc liquid.

[0033] Compared with the prior art, for the air blowing device of a hot-dip galvanizing device of the present application, by moving the connecting plate 2 on the cross beam 1, the distance between the air knife 3 and the galvanized part can be adjusted, so that the pressure of the nitrogen gas blown onto the surface of the hot-dip galvanized part 9 can be adjusted. By rotating the air knife 3 on the connecting plate 2, the air outlet direction of the air knife 3 is adjusted, further ensuring the quality of the hot-dip galvanized part 9.

[0034] In some embodiments, as Figure 1 shown, the air blowing mechanism includes a cylinder 4. The cylinder 4 is arranged on the cross beam 1, and its driving end is connected to the connecting plate 2 to drive the connecting plate 2 to move. The movement of the connecting plate 2 on the cross beam 1 is realized by the cylinder 4.

[0035] In some embodiments, as Figure 2 shown, the air blowing mechanism further includes a motor 5 and a rotating shaft 6. The two ends of the rotating shaft 6 are respectively rotatably connected to the two connecting plates 2, and the air knife 3 is installed on the rotating shaft 6. The motor 5 is connected to the end of the rotating shaft 6 to drive the rotating shaft 6 to rotate. The rotation of the air knife 3 is realized by the motor 5 and the rotating shaft 6, so that its air outlet direction can be adjusted.

[0036] In some embodiments, the rotating shaft 6 is rotatably connected to the connecting plate 2 through a bearing (not shown in the figure). The rotational connection between the rotating shaft 6 and the connecting plate 2 is realized through the bearing.

[0037] In some embodiments, the air blowing device further includes a nitrogen preparation mechanism (not shown in the figure). The nitrogen preparation mechanism is communicated with the air knife 3 through a trachea to provide nitrogen gas for the air knife 3. Nitrogen gas is provided for the air knife 3 by the nitrogen preparation device.

[0038] In some embodiments, a valve (not shown in the figure) is provided on the trachea. The switch of the air knife 3 can be controlled through the valve.

[0039] In some embodiments, a pressure sensor (not shown in the figure) is further provided on the nitrogen pipe. The nitrogen pressure supplied to the air knife 3 can be monitored in real time through the pressure sensor to avoid the problem that the unstable nitrogen pressure affects the processing quality.

[0040] In some embodiments, a filter screen (not shown in the figure) is further provided on the nitrogen pipe. The impurities in the nitrogen can be filtered out through the filter screen to avoid the problem that the quality of the hot-dip galvanized part 9 is affected due to the mixing of impurities in the nitrogen.

[0041] In some embodiments, as Figure 3 and Figure 4 shown, the bracket further includes a leg 7, and the cross beam 1 is arranged on the top end of the leg 7. The bracket forms a stable structural system through the leg 7 and the cross beam 1, ensuring production safety. In addition, pulleys can be installed at the bottom of the leg 7 to facilitate the movement of the bracket, so that the blowing device can be placed and used at different workstations, improving the utilization rate of the blowing device.

[0042] The present utility model also provides a hot-dip galvanizing device, including a hot-dip galvanizing tank 8 and the blowing device of the above-mentioned hot-dip galvanizing device.

[0043] In summary, the present disclosure provides a blowing device and a hot-dip galvanizing device of a hot-dip galvanizing device. The blowing device can adjust the distance between the air knife 3 and the hot-dip galvanized part 9 by moving on the cross beam 1 through the connecting plate 2, so as to adjust the pressure of the nitrogen blown onto the surface of the hot-dip galvanized part 9. By rotating the air knife 3 on the connecting plate 2, the air outlet direction of the air knife 3 is adjusted, further ensuring the quality of the hot-dip galvanized part 9.

[0044] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details well known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0045] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A blowing device for a hot-dip galvanizing equipment, characterized in that Comprising: A bracket, the bracket includes two cross beams (1), the two cross beams (1) are arranged parallel at the same height and are located above the hot-dip galvanizing tank (8) of the hot-dip galvanizing equipment; Two connecting plates (2), the two connecting plates (2) are respectively movably connected to the two cross beams (1) along the horizontal direction (X); And An air knife (3), both ends of the air knife (3) are respectively rotatably connected to the two connecting plates (2) to adjust the air outlet direction of the air knife (3), and move on the cross beam (1) driven by the connecting plate (2) to adjust the distance from the hot-dip galvanized part (9).

2. The air blowing device of the hot-dip galvanizing equipment according to claim 1, characterized in that, The air blowing mechanism includes a cylinder (4), the cylinder (4) is arranged on the cross beam (1), and its driving end is connected to the connecting plate (2) to drive the connecting plate (2) to move.

3. The air blowing device of the hot-dip galvanizing equipment according to claim 1, characterized in that, The air blowing mechanism further includes a motor (5) and a rotating shaft (6), both ends of the rotating shaft (6) are respectively rotatably connected to the two connecting plates (2), the air knife (3) is installed on the rotating shaft (6), and the motor (5) is connected to the end of the rotating shaft (6) to drive the rotating shaft (6) to rotate.

4. The air blowing device of the hot-dip galvanizing equipment according to claim 3, characterized in that, The rotating shaft (6) is rotatably connected to the connecting plate (2) through a bearing.

5. The air blowing device of the hot-dip galvanizing equipment according to claim 1, characterized in that, The air blowing device further includes a nitrogen preparation mechanism, and the nitrogen preparation mechanism is communicated with the air knife (3) through a gas pipe to provide nitrogen for the air knife (3).

6. The air blowing device of the hot-dip galvanizing equipment according to claim 5, characterized in that, A valve is arranged on the gas pipe.

7. The air blowing device of the hot-dip galvanizing equipment according to claim 5, characterized in that, A pressure sensor is further arranged on the nitrogen gas pipe.

8. The air blowing device of the hot-dip galvanizing equipment according to claim 5, characterized in that, A filter screen is further arranged on the nitrogen gas pipe.

9. The air blowing device of the hot-dip galvanizing equipment according to claim 1, characterized in that The bracket further includes legs (7), and the cross beam (1) is arranged on the top of the legs (7).

10. A hot-dip galvanizing device, characterized in that, Comprising a hot-dip galvanizing tank (8) and the air blowing device of the hot-dip galvanizing equipment according to any one of claims 1-9.

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