Energy-saving and consumption-reducing device for hot galvanizing production line

Abstract

The utility model provides a kind of hot galvanizing production line energy-saving and consumption reducing processing device, comprising: hot galvanizing tank, fixedly installed rack in the top of hot galvanizing tank and fixedly installed preheating mechanism in the middle of rack;Preheating mechanism includes top plate, mounting plate, first motor, gear, tooth plate, conveying unit, moving unit, hanger, high-pressure fan, wind collecting cover and air outlet pipe. When using, the waste heat recovery preheating workpiece by high-pressure fan, greatly reduce the energy consumption of heating fresh workpiece, at the same time, by reducing the temperature difference between workpiece and zinc liquid, zinc liquid heat preservation energy consumption and zinc consumption (reduce zinc slag) are significantly reduced;At the same time, realize continuous feeding by conveying unit, moving unit realizes the transfer of workpiece, compact and efficient overall structure, the main benefits it brings are significant energy saving, zinc material consumption reduction, production efficiency improvement and coating quality improvement, fully meet the design goal of "energy saving and consumption reduction".

Description

Technical Field

[0001] This utility model relates to the field of galvanizing equipment manufacturing technology, and in particular to an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line. Background Technology

[0002] Hot-dip galvanizing, also known as hot-dip zinc plating, is a surface treatment process widely used for corrosion protection of steel, primarily for metal structures in various industries. Hot-dip galvanizing involves immersing rust-removed steel components in molten zinc at approximately 500°C, causing a zinc layer to adhere to the surface of the steel components, thus achieving corrosion protection. The hot-dip galvanizing process includes: pickling, washing, adding flux, drying, plating, cooling, chemical treatment, cleaning, polishing, and completion of the hot-dip galvanizing process. Hot-dip galvanizing technology plays an immeasurable and irreplaceable role in reducing corrosion and extending the service life of steel, as well as saving energy and materials. This has led to its widespread application in industries such as power transmission towers, communication towers, municipal lighting, electrified railways, transportation, shipbuilding, and construction. Statistics show that 40% of the world's annual zinc production is used for hot-dip galvanizing. However, hot-dip galvanizing is also a traditionally high-energy-consuming industry. With the continuous advancement of my country's industrialization, the increasing tension in energy supply, and the gradual strengthening of public environmental awareness, energy conservation and emission reduction have become an inevitable development trend for the hot-dip galvanizing industry.

[0003] In the existing hot-dip galvanizing process, the electroplating solution needs to be heated to reach the optimal reaction temperature. However, the metal workpiece itself has a low initial temperature, and its temperature will drop after being placed in the electroplating solution. It also needs to be heated for a period of time, which affects the reaction efficiency. Heating the workpiece alone will consume a lot of energy. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an energy-saving and consumption-reducing treatment device for hot-dip galvanizing production lines, which solves the problem that in the prior art, the initial temperature of the metal workpiece itself is low, and its temperature will drop after being placed in the electroplating solution, affecting the reaction efficiency, while heating the workpiece alone will consume a lot of energy.

[0005] To achieve the above and other related objectives, this utility model provides an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line, comprising: a hot-dip galvanizing tank, a frame fixedly installed on the top of the hot-dip galvanizing tank, and a preheating mechanism fixedly installed in the middle of the frame;

[0006] The preheating mechanism includes a top plate fixedly installed on the top of the frame, a mounting plate vertically fixedly installed at the center of the bottom of the top plate, a first motor fixedly installed in the middle of the mounting plate, a gear fixedly installed on the output shaft of the first motor, a toothed plate that passes through the top plate and meshes with the gear, a conveying unit fixedly installed on the bottom of both sides of the mounting plate, a moving unit fixedly installed on the bottom of the toothed plate, a high-pressure blower fixedly installed on the top of the top plate, an air collecting hood fixedly connected to the air inlet of the high-pressure blower, and an air outlet pipe fixedly installed at the output end of the high-pressure blower.

[0007] Preferably, the conveying unit includes a side plate fixedly connected to the bottom of the mounting plate, a U-shaped frame fixedly connected to both ends of the surface of the side plate, rollers rotatably connected to both ends of the U-shaped frame, a conveyor belt sleeved on the outside of the two rollers, and a second motor fixedly installed at one end of the rollers.

[0008] Preferably, the moving unit includes a frame fixedly installed on one side of the toothed plate, a screw rotatably connected to the inner side of the frame, a third motor fixedly connected to the end of the screw, a slide rod fixedly connected to the inner side of the frame, a moving block screwed to the outer wall of the screw, a support rod fixedly connected to the bottom of the moving block, and a hanger detachably connected to the bottom of the support rod.

[0009] Preferably, an L-shaped frame is fixedly connected to the bottom of the top plate, and a limiting block is fixedly installed at the lower end of the L-shaped frame. The limiting block is slidably connected to the toothed plate, and both sides of the toothed plate are provided with sliding grooves that are adapted to the limiting block.

[0010] Preferably, a filter screen is fixedly installed on the inner wall of the air collecting hood.

[0011] Preferably, the hot-dip galvanizing tank has openings on both the front and rear sides that are adapted to the conveying unit, and a hinged flip door is connected to the inside of the opening.

[0012] Preferably, the hanger has evenly distributed ventilation slots on both sides and evenly distributed leakage holes at the bottom.

[0013] As described above, the energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line disclosed in this utility model has the following beneficial effects: This utility model recovers waste heat by using a high-pressure blower to preheat the workpiece, which greatly reduces the energy consumption for heating fresh workpieces. At the same time, by reducing the temperature difference between the workpiece and the zinc liquid, it significantly reduces the energy consumption for zinc liquid heat preservation and zinc consumption (reducing zinc dross).

[0014] Simultaneously, continuous feeding is achieved through the conveyor unit, and workpiece transfer is realized through the moving unit, resulting in a compact and efficient overall structure. Its main benefits include significant energy savings (energy conservation), reduced zinc material consumption (consumption reduction), increased production efficiency, and improved coating quality, perfectly aligning with the design goal of "energy conservation and consumption reduction."

[0015] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. Attached Figure Description

[0016] Figure 1 The diagram shown is an overall structural schematic of an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to this utility model.

[0017] Figure 2 The diagram shown is a partial cross-sectional view of an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to this utility model.

[0018] Figure 3 This invention relates to an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line. Figure 2 A bottom view.

[0019] Figure 4 This invention relates to an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line. Figure 3 A magnified structural diagram of point A in the middle.

[0020] Component designation explanation

[0021] 1. Hot-dip galvanizing tank;

[0022] 2. Rack;

[0023] 3. Preheating mechanism; 31. Top plate; 32. Mounting plate; 33. First motor; 34. Gear; 35. Tooth plate; 36. Conveying unit; 361. Side plate; 362. U-shaped frame; 363. Roller; 364. Conveyor belt; 365. Second motor; 37. Moving unit; 371. Frame; 372. Screw; 373. Slide rod; 374. Support rod; 375. Hanger; 3751. Ventilation slot; 3752. Drain hole; 376. Third motor; 377. Moving block; 38. High-pressure fan; 39. Air collection hood; 391. Filter screen; 310. Air outlet duct;

[0024] 4. L-shaped frame;

[0025] 5. Limit block;

[0026] 6. Opening. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] like Figure 1-4 As shown, this utility model provides an energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line, including: a hot-dip galvanizing tank 1, a frame 2 fixedly installed on the top of the hot-dip galvanizing tank 1, and a preheating mechanism 3 fixedly installed in the middle of the frame 2;

[0030] The preheating mechanism 3 includes a top plate 31 fixedly installed on the top of the frame 2, a mounting plate 32 vertically fixedly installed at the bottom center of the top plate 31, a first motor 33 fixedly installed in the middle of the mounting plate 32, a gear 34 fixedly installed on the output shaft of the first motor 33, a toothed plate 35 that passes through the top plate 31 and meshes with the gear 34, a conveying unit 36 ​​fixedly installed on the bottom of both sides of the mounting plate 32, a moving unit 37 fixedly installed on the bottom of the toothed plate 35, a high-pressure blower 38 fixedly installed on the top of the top plate 31, an air collecting hood 39 fixedly connected to the air inlet of the high-pressure blower 38, and an air outlet pipe 310 fixedly installed at the output end of the high-pressure blower 38.

[0031] In one embodiment, please refer to Figure 1 The conveying unit 36 ​​includes a side plate 361 fixedly connected to the bottom of the mounting plate 32, a U-shaped frame 362 fixedly connected to both ends of the surface of the side plate 361, rollers 363 rotatably connected to both ends of the U-shaped frame 362, a conveyor belt 364 sleeved on the outside of the two rollers 363, and a second motor 365 fixedly installed on one end of the rollers 363. The second motor 365 drives the rollers 363 to rotate, thereby driving the conveyor belt 364 to horizontally transport the workpiece to directly above the hot-dip galvanizing tank 1.

[0032] In one embodiment, please refer to Figure 2The moving unit 37 includes a frame 371 fixedly installed on one side of the toothed plate 35, a screw 372 rotatably connected to the inside of the frame 371, a third motor 376 fixedly connected to the end of the screw 372, a slide rod 373 fixedly connected to the inside of the frame 371, a moving block 377 screwed to the outer wall of the screw 372, a support rod 374 fixedly connected to the bottom of the moving block 377, and a hanger 375 detachably connected to the bottom of the support rod 374. The third motor 376 drives the screw 372 to rotate, drives the moving block 377 to move horizontally along the slide rod 373, thereby driving the support rod 374 and the hanger 375 to move horizontally.

[0033] In one embodiment, please refer to Figure 2 An L-shaped frame 4 is fixedly connected to the bottom of the top plate 31. A limit block 5 is fixedly installed at the lower end of the L-shaped frame 4. The limit block 5 is slidably connected to the toothed plate 35. Slide grooves that are compatible with the limit block 5 are opened on both sides of the toothed plate 35. The limit block 5 and the slide grooves on the toothed plate 35 ensure smooth lifting.

[0034] In one embodiment, please refer to Figure 4 A filter screen 391 is fixedly installed on the inner wall of the air collecting hood 39 to prevent impurities from being sucked in.

[0035] In one embodiment, please refer to Figure 2 The hot-dip galvanizing tank 1 has openings 6 on both the front and rear sides that are compatible with the conveying unit 36. The openings 6 and the flip doors 7 on both sides of the hot-dip galvanizing tank 1 facilitate the conveyor belt 364 to pass through and out, so as to transport the workpiece out.

[0036] In one embodiment, please refer to Figure 4 The hanger 375 has evenly distributed ventilation slots 3751 on both sides and evenly distributed drain holes 3752 at the bottom. The ventilation slots 3751 facilitate hot air preheating, and the drain holes 3752 facilitate the leakage of zinc liquid.

[0037] The specific usage process of this utility model is as follows: In the preheating stage, the workpiece to be galvanized (such as a steel plate) is first placed in the hanger 375 and then placed on the conveyor unit 36. The second motor 365 drives the roller 363 to rotate, which in turn drives the conveyor belt 364 to horizontally transport the workpiece to directly above the hot-dip galvanizing tank 1. The high-pressure blower 38 is started, drawing air from the production line environment (mainly absorbing the residual heat emitted from the hot-dip galvanizing tank 1) through the air collector hood 39, and the filter screen 391 prevents impurities from being sucked in. The drawn-in air is pressurized and heated by the high-pressure blower 38 (or directly utilizes the residual heat), and then blown out at high speed through the air outlet duct 310. The air outlet duct 310 is arranged parallel to the hanger 375 to ensure that the hot air is blown evenly and concentratedly onto the surface of the workpiece located in the preheating position for preheating.

[0038] Once the workpiece reaches the preheating position, the hanger 375 (the component that ultimately grips the workpiece) is attached to the bottom of the support rod 374 via an electromagnet. When the electromagnet is energized, the hanger 375 holds the preheated workpiece. The moving unit 37 operates, with the first motor 33 driving the gear 34 to rotate. This rotation, via the gear plate 35 meshing with the gear 34, enables the gear plate 35 to move vertically up and down. The moving unit 37, fixed to the bottom of the gear plate 35, moves up and down accordingly. The screw 372 within the moving unit 37 rotates (driven by the third motor 376), driving the moving block 377 to move horizontally along the slide rod 373, thereby causing the support rod 374 and the hanger 375 to move horizontally. Through the combination of the gear 34, the lifting of the gear plate 35, and the horizontal movement of the screw 372, the hanger 375 can be precisely positioned on the workpiece in the preheating position and gripped.

[0039] After the workpiece is gripped, the first motor 33 drives the gear 34 and toothed plate 35 to descend again, immersing the hanger 375 holding the workpiece smoothly and vertically into the zinc bath 1 below, completing the hot-dip galvanizing process. The openings 6 and the tilting doors 7 on both sides of the hot-dip galvanizing bath 1 facilitate the entry and exit of the conveyor belt 364 to transport the workpiece out.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line, characterized in that, include: Hot-dip galvanizing tank (1), frame (2) fixedly installed on the top of the hot-dip galvanizing tank (1), and preheating mechanism (3) fixedly installed in the middle of the frame (2); The preheating mechanism (3) includes a top plate (31) fixedly installed on the top of the frame (2), a mounting plate (32) vertically fixedly installed at the center of the bottom of the top plate (31), a first motor (33) fixedly installed in the middle of the mounting plate (32), a gear (34) fixedly installed on the output shaft of the first motor (33), a toothed plate (35) that passes through the top plate (31) and meshes with the gear (34), a conveying unit (36) fixedly installed on the bottom of both sides of the mounting plate (32), a moving unit (37) fixedly installed on the bottom of the toothed plate (35), a high-pressure blower (38) fixedly installed on the top of the top plate (31), an air collecting hood (39) fixedly connected to the air inlet of the high-pressure blower (38), and an air outlet pipe (310) fixedly installed at the output end of the high-pressure blower (38).

2. The energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to claim 1, characterized in that: The conveying unit (36) includes a side plate (361) fixedly connected to the bottom of the mounting plate (32), a U-shaped frame (362) fixedly connected to both ends of the surface of the side plate (361), rollers (363) rotatably connected to both ends of the U-shaped frame (362), a conveyor belt (364) sleeved on the outside of the two rollers (363), and a second motor (365) fixedly installed at one end of the rollers (363).

3. The energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to claim 1, characterized in that: The moving unit (37) includes a frame (371) fixedly installed on one side of the toothed plate (35), a screw (372) rotatably connected to the inside of the frame (371), a third motor (376) fixedly connected to the end of the screw (372), a slide rod (373) fixedly connected to the inside of the frame (371), a moving block (377) screwed to the outer wall of the screw (372), a support rod (374) fixedly connected to the bottom of the moving block (377), and a hanger (375) connected to the bottom of the support rod (374) by electromagnet attraction.

4. The energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to claim 1, characterized in that: The top plate (31) is fixedly connected to an L-shaped frame (4) at the bottom. A limiting block (5) is fixedly installed at the lower end of the L-shaped frame (4). The limiting block (5) is slidably connected to the toothed plate (35). Both sides of the toothed plate (35) are provided with sliding grooves that are compatible with the limiting block (5).

5. The energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to claim 1, characterized in that: A filter screen (391) is fixedly installed on the inner wall of the air collecting hood (39).

6. The energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to claim 1, characterized in that: The hot-dip galvanizing tank (1) has openings (6) on both the front and rear sides that are compatible with the conveying unit (36).

7. The energy-saving and consumption-reducing treatment device for a hot-dip galvanizing production line according to claim 3, characterized in that: The hanger (375) has evenly distributed ventilation slots (3751) on both sides, and evenly distributed leakage holes (3752) at the bottom.

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