Hot galvanizing equipment for steel part of electric power iron tower

Abstract

The utility model provides electric power iron tower steel part hot galvanizing equipment which comprises a drying box. The ventilation square frame is arranged in the box body, a plurality of first ventilation holes are uniformly distributed in each side wall of the ventilation square frame, an air guide structure is formed between the outer side of the ventilation square frame and the inner wall of the box body, and the air guide structure is provided with an air distribution cavity; the containing square basket is arranged in the ventilation square frame, a plurality of second ventilation holes communicating with the first ventilation holes are evenly distributed in the outer wall of the containing square basket, and the interior of the containing square basket is used for containing the electric power iron tower steel parts; and an air outlet of the hot-air blower is communicated with each air distribution cavity. The steel part drying device solves the problems that in the prior art, in the drying process of a steel part, the drying effect is poor due to insufficient drying uniformity and drying efficiency, and a zinc coating is prone to being damaged due to insufficient stability, and the steel part drying device is not only good in drying effect and stability, but also simple in structure, flexible in function and low in energy consumption.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-dip galvanizing of steel parts, in particular to hot-dip galvanizing equipment for steel parts of power transmission towers. Background Art

[0002] An independent steel structure erected to bear a certain aerial load, communication or other functions is collectively called a tower, including transmission line towers. Towers are generally made of angle steel, steel plates, and steel pipe components, and are combined by bolt and welding connection methods. Generally, tower components are hot-dip galvanized for anti-corrosion. The hot-dip galvanizing process is a long-term anti-corrosion technology, which is widely used in towers, electric power, highway guardrails, building steel structures, etc. The hot-dip galvanizing process usually consists of pre-treatment, hot-dip galvanizing, and post-treatment; the pre-treatment includes processes such as degreasing, pickling and rust removal, solvent fluxing, and drying; the post-treatment includes processes such as cooling, passivation, and trimming of the plated parts; among them, during the post-treatment, the cooled steel parts need to be put into a drying furnace for drying to remove the moisture in the zinc layer and improve the quality and corrosion resistance of the product.

[0003] For example, the patent with the publication number CN220648925U discloses a hot-dip galvanizing device for steel parts of power transmission towers, including a drying box. A box-shaped filter plate is arranged inside the drying box. A flipping mechanism is arranged on one side of the box-shaped filter plate. The flipping mechanism drives a rack to move through a cylinder, and the rack can drive the box-shaped filter plate to flip half a circle through a gear and a rotating block, which can make the bottom surface of the steel parts inside the box-shaped filter plate face upward, so that the hot air blower can dry the other side of the steel parts, making the drying effect better, and people do not need to manually flip the box-shaped filter plate and the steel parts, and only need to control the use of the cylinder.

[0004] However, the flipping design also has some disadvantages. On the one hand, during the flipping process, it is easy for the steel parts to roll or move along with the flipping of the box-shaped filter plate, making the heated surface of the steel parts unstable, which not only affects the drying uniformity but also may cause certain damage to the galvanized layer of the steel parts, thus affecting the hot-dip galvanizing effect. On the other hand, although flipping can make the upper and lower bottom surfaces of the steel parts be heated, the upper and lower bottom surfaces can only be baked separately, and in addition, the side surfaces of the steel parts cannot be directly baked by hot air, so the drying efficiency of this flipping design still needs to be improved. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a hot-dip galvanizing device for steel parts of power transmission towers, which solves the problems in the prior art that the drying uniformity and drying efficiency of the steel parts during the drying process are insufficient, resulting in poor drying effect, and the stability is insufficient, resulting in easy damage to the galvanized layer.

[0006] According to an embodiment of the present utility model, a hot-dip galvanizing device for steel components of a power transmission tower includes a drying box, and the drying box includes: a box body;

[0007] A breathable square frame, which is arranged inside the box body and has a number of first ventilation holes evenly distributed on each side wall thereof. A wind guiding structure is formed between the outer side of the breathable square frame and the inner wall of the box body. The wind guiding structure has a air distribution cavity, and one air distribution cavity is arranged in cooperation outside each side wall of the breathable square frame, and each air distribution cavity is communicated with the first ventilation holes on the corresponding side wall of the breathable square frame;

[0008] A containing square basket, which is arranged inside the breathable square frame and has a number of second ventilation holes evenly distributed on its outer wall and communicated with the first ventilation holes. The containing square basket is used for placing steel components of the power transmission tower;

[0009] A hot air blower, the air outlet of which is communicated with each air distribution cavity.

[0010] The technical principle of the present utility model is as follows: Each air distribution cavity is communicated with the air outlet of the hot air blower to almost synchronously divert the hot air blown out by the hot air blower into each air distribution cavity; One air distribution cavity is arranged in cooperation outside each side wall of the breathable square frame, and each air distribution cavity is communicated with the first ventilation holes on the corresponding side wall of the breathable square frame. Therefore, the hot air in each air distribution cavity can enter the inside of the breathable square frame through the corresponding side wall of the breathable square frame, that is, each side wall of the breathable square frame can simultaneously introduce hot air, so that the part of the inside of the breathable square frame avoiding the containing square basket is filled with hot air, and then the hot air can enter the inside of the containing square basket from multiple directions through a number of second ventilation holes at the same time. Finally, the direct heating surface of the steel components of the power transmission tower placed in the containing square basket is increased, and the amount of hot air on each heating surface is relatively uniform, ensuring the drying uniformity and drying efficiency. At the same time, the steel components do not need to be turned over during the drying process, which also ensures the stability of the steel components.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] 1. Good drying effect. By adopting the wind guiding structure to introduce hot air into the containing square basket from multiple directions almost synchronously, the direct heating surface of the steel components in the containing square basket is increased, and the amount of hot air on each heating surface is relatively uniform, effectively improving the drying uniformity and drying efficiency of the steel components and ensuring the drying effect.

[0013] 2. Good stability, good drying uniformity, and the galvanized layer is not easily damaged. By adopting the containing square basket to place the steel components and at the same time adopting the wind guiding structure to introduce hot air into the containing square basket from all directions, the steel components can be heated from multiple directions without turning the containing square basket during the drying process, that is, the stability of the steel components during the drying process is better. On the one hand, it further ensures the drying uniformity, and on the other hand, the galvanized layer on it is not easily damaged, thus ensuring the quality and reliability of the hot-dip galvanizing process.

[0014] 3. Simple structure, flexible functions and low energy consumption. The air guiding structure is simple, and the air guiding direction and the hot air volume in each direction can be flexibly designed or controlled according to needs, and no additional power consumption is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of an embodiment of the present invention.

[0016] Figure 2 is Figure 1 a partial enlarged view of

[0017] Figure 3 It is a schematic structural view of another embodiment of the present invention.

[0018] Figure 4 It is a partial cross-sectional view of another embodiment of the present invention.

[0019] Figure 5 is Figure 4 a partial enlarged view of

[0020] In the above-mentioned drawings: the box body 100, the box door 110, the hot air blower 200, the air outlet cylinder 210, the air outlet 220, the air permeable square frame 300, the slideway 310, the accommodating square basket 400, the second air permeable hole 410, the first air distribution cavity 511, the second air distribution cavity 512, the third air distribution cavity 513, the fourth air distribution cavity 514, the first air guiding channel 521, the second air guiding channel 522, the third air guiding channel 523, the fourth air guiding channel 524, the first air guiding port 531, the second air guiding port 532, the third air guiding port 533, the fourth air guiding port 534, the collection box 600, the drainage channel 710, the drainage eaves plate 720, the air extraction pump 810, the air extraction pipeline 820, the air outlet pipeline 830, the activated carbon filter element 900. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0022] As Figures 1-5As shown in the figure, an embodiment of the utility model provides a hot-dip galvanizing device for steel components of a power transmission tower, which includes a drying box. The drying box includes a box body 100, a breathable square frame 300, a containing square basket 400, and a hot air blower 200. The breathable square frame 300 is arranged inside the box body 100, and a plurality of first ventilation holes (not shown in the figure) are evenly distributed on each side wall thereof. A wind guiding structure is formed between the outer side of the breathable square frame 300 and the inner wall of the box body 100. The wind guiding structure has a air distribution cavity. One air distribution cavity is arranged in cooperation with each side wall of the breathable square frame 300, and each air distribution cavity is communicated with the first ventilation holes on the corresponding side wall of the breathable square frame 300. The containing square basket 400 is arranged inside the breathable square frame 300, and a plurality of second ventilation holes 410 communicated with the first ventilation holes are evenly distributed on its outer wall. The containing square basket 400 is used to place the steel components of the power transmission tower. The air outlet 220 of the hot air blower 200 is communicated with each air distribution cavity.

[0023] In the embodiment of the utility model, specifically:

[0024] The box body 100 of the drying box is generally in a cube or cuboid shape. Correspondingly, the overall contour of the breathable square frame 300 is also preferably in a cube or cuboid shape. Thus, on the premise of making the volume of the breathable square frame 300 as large as possible, the space between the outer side of the breathable square frame 300 and the inner wall of the box body 100 can be fully utilized to arrange the wind guiding structure, and even the wind guiding structure can be partially embedded in the side wall of the box body 100 to further save space. The breathable square frame 300 has four side walls and two openings, and one of the openings can be closed by the inner wall of the box body 100. Correspondingly, there are four air distribution cavities, and the cross-sectional area of each air distribution cavity is as large as possible to communicate with as many first ventilation holes as possible. The containing square basket 400 has one opening for the convenience of placing and taking the steel components. Preferably, the containing square basket 400 can be moved into and out of the breathable square frame 300. More preferably, when the containing square basket 400 is moved into the breathable square frame 300, the opening directions of the containing square basket 400 and the breathable square frame 300 are the same. Preferably, the lower end of the body of the hot air blower 200 is embedded in the box body 100, and it is communicated with an air outlet pipe 210. The air outlet pipe 210 is entirely placed inside the box body 100, and the lower end opening of the air outlet pipe 210 is the air outlet 220 of the hot air blower 200.

[0025] In the embodiment of the utility model:

[0026] On the one hand, the drying effect is good. By adopting the wind guiding structure to introduce hot air into the containing square basket 400 from multiple directions almost synchronously, the direct heating surface of the steel components in the containing square basket 400 is increased, and the hot air volume of each heating surface is relatively uniform, effectively improving the drying uniformity and drying efficiency of the steel components and ensuring the drying effect.

[0027] On the other hand, it has good stability, good drying uniformity, and the galvanized layer is not easily damaged. By using the accommodating basket 400 to place steel parts and adopting a wind guiding structure to introduce hot air into the accommodating basket 400 from all directions, the steel parts can be heated from multiple directions without turning the accommodating basket 400 during the drying process. That is, the stability of the steel parts during the drying process is better. On the one hand, it further ensures the drying uniformity, and on the other hand, the galvanized layer on it is not easily damaged, thus ensuring the quality and reliability of the hot-dip galvanizing process.

[0028] Finally, on the one hand, it has a simple structure, flexible functions and low energy consumption. The wind guiding structure is simple, the wind guiding direction and the hot air volume in each direction can be flexibly designed or controlled according to needs, and no additional power consumption is required.

[0029] As Figure 1 shown, according to another embodiment of the present invention, the projection surface of the projection of each air distribution cavity on the side wall of the corresponding air permeable square frame 300 can cover the side wall of the corresponding air permeable square frame 300. Further, each air distribution cavity is communicated with the air outlet 220 through a wind guiding channel.

[0030] In the embodiment of the present invention, specifically:

[0031] Here, along Figure 1In the up, left, right, and down directions of the breathable square frame 300 shown in the figure, the four air distribution cavities are sequentially named the first air distribution cavity 511, the second air distribution cavity 512, the third air distribution cavity 513, and the fourth air distribution cavity 514; correspondingly, the air guiding channels communicating with the first air distribution cavity 511, the second air distribution cavity 512, the third air distribution cavity 513, and the fourth air distribution cavity 514 are respectively named the first air guiding channel 521, the second air guiding channel 522, the third air guiding channel 523, and the fourth air guiding channel 524; correspondingly, the air inlets on the first air guiding channel 521, the second air guiding channel 522, the third air guiding channel 523, and the fourth air guiding channel 524 are respectively named the first air inlet 531, the second air inlet 532, the third air inlet 533, and the fourth air inlet 534; preferably, the overall contour of each air distribution cavity is in the shape of a cube or a cuboid, and the space occupied by each air distribution cavity does not exceed the plane where the two openings of the breathable square frame 300 are located. More preferably, the sizes of the four air distribution cavities are the same; preferably, the first air guiding channel 521 is in the shape of a cylinder, its vertical axis coincides with the vertical axis of the first air distribution cavity 511, and the first air inlet 531 on it is located inside the air outlet cylinder 210 and its diameter is less than one-third of the inner diameter of the air outlet cylinder 210; preferably, the second air guiding channel 522 and the third air guiding channel 523 are symmetrically distributed outside the first air distribution cavity 511, and their longitudinal sections are both in the shape of an inverted L; preferably, there are two fourth air guiding channels 524, and the two fourth air guiding channels 524 are respectively located outside the second air guiding channel 522 and the third air guiding channel 523 and are symmetrically distributed, and their longitudinal sections are both in the shape of a groove. More preferably, the gaps between the second air guiding channel 522, the second air distribution cavity 512, the third air guiding channel 523, and the third air distribution cavity 513 and the corresponding side walls of the box body 100 are completely occupied by the fourth air guiding channel 524. Further preferably, the sizes of the fourth air guiding channel 524 or the gaps are as small as possible, that is, the fourth air guiding channel 524 is relatively narrow; correspondingly, there are also two fourth air inlets 534. Preferably, the contours of the second air inlet 532, the third air inlet 533, and the two fourth air inlets 534 are all in the shape of a rectangle, the sizes of the two fourth air inlets 534 are the same, and the sizes of the second air inlet 532 and the third air inlet 533 are also the same and are both smaller than the sizes of the fourth air inlets 534.

[0032] In the embodiment of the present utility model, the first air guiding channel 521 divides the hot air blown out by the air outlet cylinder 210 into two parts. One part first enters the first air distribution cavity 511 through the first air guiding channel 521, and the other part enters the second air guiding opening 532, the third air guiding opening 533, and the two fourth air guiding openings 534 respectively after coming out of the air outlet 220, and then enters the second air distribution cavity 512 and the third air distribution cavity 513 through the second air guiding channel 522 and the third air guiding channel 523 respectively, and enters the fourth air distribution cavity 514 through the two fourth air guiding channels 524; since the hot air at the center of the air outlet cylinder 210 is relatively concentrated in general, the first air guiding opening 531 with a smaller diameter can meet the requirements; compared with the second air guiding opening 532 or the third air guiding opening 533, the fourth air guiding openings 534 are more in number and larger in size, and in addition, the fourth air guiding channels 524 are all relatively narrow, so that more hot air can enter the fourth air guiding openings 534, and the hot air entering the fourth air guiding openings 534 can quickly pass through the narrow fourth air guiding channels 524 and enter the fourth air distribution cavity 514; finally, the four air distribution cavities are almost filled with hot air at the same time, and the amount of hot air in the four air distribution cavities is relatively stable, ensuring the uniformity and efficiency of drying; among them, the amount of hot air in the first air distribution cavity 511 and the fourth air distribution cavity 514 is the largest, so that the drying effect in the upper and lower directions of the steel parts is the best, thus accurately meeting the drying requirements of the steel parts and further ensuring the drying effect.

[0033] As Figure 1 and Figure 2 shown, according to another embodiment of the present utility model, the accommodating square basket 400 is arranged obliquely; the drying box further includes a collection box 600 and a drainage structure; the collection box 600 is arranged at the bottom of the box body 100; the drainage structure includes a drainage channel 710, and the drainage channel 710 is communicated between the inner bottom of the accommodating square basket 400 and the collection box 600. Further, the drainage structure further includes a drainage eaves plate 720, and the drainage eaves plate 720 is arranged on the two inner walls on the lower side of the accommodating square basket 400 and one is arranged above each second ventilation hole 410 on the corresponding side wall. Still further, the drying box further includes four slideways 310, and the four slideways 310 are all recessed in the inner wall of the ventilation square frame 300, and the four corners of the accommodating square basket 400 are respectively and slidably arranged in the four slideways 310 in a matching manner.

[0034] First, it should be noted that since the surface of the steel parts to be dried has just been galvanized, zinc will melt and drip during the drying process. Therefore, during the drying process, the zinc liquid needs to be drained and collected. In the embodiment of the present invention, specifically, the inclined placement of the accommodating square basket 400 facilitates the drainage of the zinc liquid. After its inclined placement, the included angle with the horizontal plane is preferably between 30° and 45°, so that while the volume of the accommodating square basket 400 is as large as possible, it also saves space for the layout of the air guiding structure; the volume of the collecting box 600 is as large as possible. Preferably, a handle (not shown in the figure) can also be provided on the collecting box 600; the drainage channel 710 penetrates through the bottom of the accommodating square basket 400 and the corresponding position of the fourth air distribution cavity 514; after the accommodating square basket 400 is inclined, the zinc liquid may drip on or flow to the two inner walls on the lower side of the accommodating square basket 400. The design of the drainage eaves plate 720 prevents the zinc liquid from entering the second ventilation holes 410 and causing blockage or flowing out of the accommodating square basket 400; the design of the slideway 310 not only facilitates the insertion and removal of the accommodating square basket 400 in the ventilation square frame 300, but also further saves space.

[0035] As Figures 3-5 shown, according to another embodiment of the present invention, the drying box further includes an air extraction device. The air extraction device includes an air extraction pump 810, an air extraction pipe 820, and an air outlet pipe 830. One ends of the air extraction pipe 820 and the air outlet pipe 830 are both connected to the air extraction pump 810, and the other end of the air extraction pipe 820 is communicated with the inside of the box body 100. Further, an activated carbon filter element 900 is provided inside the air extraction pipe 820.

[0036] Specifically, it is preferably:

[0037] The side wall of the box body 100 corresponding to the open side of the ventilation square frame 300 is designed as a box door 110, and the box door 110 can be hinged to other parts of the box body 100; the air extraction pump 810 is fixedly connected to the outer wall of the box body 100. The air extraction pipe 820 can be made of an elastic hose material, and one end thereof is fixedly connected to the box door 110 through a through hole opened on the box door 110 to facilitate the opening and closing of the box door 110; the activated carbon filter element 900 can be an activated carbon filter mesh and is preferably arranged near the air inlet of the air extraction pipe 820 for easy replacement. It can filter harmful gases such as zinc oxide generated inside the box body 100 by adsorption to meet the emission standards; the air outlet pipe 830 discharges the gas extracted by the air extraction pump 810. The design of the air extraction device and the activated carbon filter element 900 prevents the zinc oxide gas generated during the drying process from being inhaled by the operator, which is healthy and environmentally friendly. In addition, this embodiment is a further optimization based on the foregoing embodiments.

[0038] When this embodiment is in use:

[0039] The hot air blown out by the hot air blower 200 enters the first air distribution cavity 511, the second air distribution cavity 512, the third air distribution cavity 513 and the fourth air distribution cavity 514 respectively through the first air guiding channel 521, the second air guiding channel 522, the third air guiding channel 523 and the fourth air guiding channel 524, and then enters the accommodating square basket 400 through a number of first air permeable holes and a number of second air permeable holes 410 in sequence; among them, the air intake of two side walls of the inclined accommodating square basket 400 is the largest. Among the two side walls with the largest air intake, one is the side wall close to the air outlet 220 and the other is parallel to it. Since the heat receiving surfaces of the steel parts corresponding to these two side walls are the main heat receiving surfaces, the drying effect of the steel parts can be ensured. During the drying process, the zinc liquid dripping from the steel parts is drained into the drainage channel 710 by a number of drainage eaves 720 and finally falls into the collection box 600 below the drainage channel 710. At the same time, the air extraction device and the activated carbon filter 900 extract the excess gas in the drying box and adsorb and filter the harmful gases such as zinc oxide in the gas to prevent the harmful gases from being inhaled by the operator into the body.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. Hot dip galvanizing equipment for power tower steel parts, including a drying box, characterized in that: The drying box comprises: Box (100); A ventilation frame (300), the ventilation frame (300) being arranged in the box body (100) and having a plurality of first ventilation holes evenly distributed on each side wall thereof, an air guide structure being formed between the outer side of the ventilation frame (300) and the inner wall of the box body (100), the air guide structure having an air distribution cavity, one air distribution cavity being arranged outside each side wall of the ventilation frame (300), and each air distribution cavity being in communication with the first ventilation hole on the corresponding side wall of the ventilation frame (300); A accommodating square basket (400), wherein the accommodating square basket (400) is arranged in the ventilating square frame (300) and has a plurality of second vent holes (410) evenly distributed on its outer wall and connected to the first vent holes, and the accommodating square basket (400) is used to place steel parts of the power tower; A hot air blower (200), wherein an air outlet (220) of the hot air blower (200) is connected to each air distribution cavity.

2. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 1, characterized in that: The projection surface of the orthographic projection of each of the air distribution cavities on the side wall of the corresponding air permeable frame (300) can cover the side wall of the corresponding air permeable frame (300).

3. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 2, characterized in that: Each air distribution cavity is connected to the air outlet (220) via an air guide channel.

4. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 1, characterized in that: The containing square basket (400) is arranged obliquely; the drying box further comprises: A collection box (600), wherein the collection box (600) is arranged at the bottom of the box body (100); A drainage structure, the drainage structure comprising a drainage channel (710), the drainage channel (710) being connected between the inner bottom of the accommodating square basket (400) and the collection box (600).

5. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 4, characterized in that: The drainage structure also includes: A drainage eaves plate (720) is arranged on two inner walls at the lower side of the accommodating square basket (400), and one drainage eaves plate (720) is arranged above each second air vent (410) of the corresponding side wall.

6. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 4, characterized in that: The drying box also includes: There are four slideways (310), and the slideways (310) are all recessed in the inner wall of the air-permeable square frame (300). The four corners of the accommodating square basket (400) are adapted to be slidably arranged in the four slideways (310) in a one-to-one correspondence.

7. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 1, characterized in that: The drying box also includes: An air extraction device, the air extraction device comprising an air extraction pump (810), an air extraction pipeline (820) and an air outlet pipeline (830), one end of each of the air extraction pipeline (820) and the air outlet pipeline (830) is connected to the air extraction pump (810), and the other end of the air extraction pipeline (820) is connected to the interior of the box (100).

8. The hot-dip galvanizing equipment for electric power tower steel parts according to claim 7, characterized in that: An activated carbon filter (900) is arranged inside the air extraction pipeline (820).

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