Rotary drying equipment for hot galvanizing

Abstract

The utility model discloses hot galvanizing rotary drying equipment, and relates to the technical field of hot galvanizing drying equipment, the hot galvanizing rotary drying equipment comprises a drying box, two sides of the drying box are respectively provided with a feed port and a discharge port, the inner bottom of the drying box is provided with a bottom plate, and the bottom of the drying box is provided with a discharge port. The two sides of the bottom plate penetrate through the feeding port and the discharging port, a conveying assembly is installed at the top of the bottom plate, a moving assembly is installed at the inner top of the drying box, a hydraulic cylinder is installed at the bottom of the moving assembly, a clamping plate is installed at the bottom of the hydraulic cylinder, and a supporting frame is installed at the inner bottom of the drying box. According to the scheme, the problems that in the using process of an existing hot galvanizing drying device, workpieces are conveyed through a crawler belt, the workpieces are prone to being heated unevenly through simple static conveying, local overheating or insufficient drying is caused, and the drying effect is poor are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of hot-dip galvanizing drying equipment, specifically a hot-dip galvanizing rotary drying equipment. Background Technology

[0002] Hot-dip galvanizing, also known as hot-dip zinc plating, involves immersing rust-removed steel parts in molten zinc at approximately 500°C, causing a zinc layer to adhere to the surface of the steel components, thus providing corrosion protection. It is an effective method of metal corrosion protection and is primarily used in metal structural facilities across various industries. Drying before hot-dip galvanizing requires a dryer, a mechanical device that uses heat energy to reduce the moisture content of materials. The drying process involves heating the material to vaporize and remove moisture, resulting in a specified content of solid material.

[0003] As indicated by announcement number CN202730216U, a hot-dip galvanizing drying device is described. This device includes an inlet, an outlet, and a track. The device is characterized in that: a track connects the inlet and the outlet, an iron cover is provided above the track, a dryer is provided above the iron cover, a blower is provided above the dryer, and an electrical distribution box is provided at one end of the iron cover.

[0004] The aforementioned device transports workpieces via a track during operation. However, simple static transport can easily lead to uneven heating of the workpieces, resulting in localized overheating or insufficient drying, thus causing poor drying effects. Therefore, we propose a hot-dip galvanizing rotary drying device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a hot-dip galvanizing rotary drying device to solve the problem mentioned in the background art that the existing hot-dip galvanizing drying device conveys the workpiece by a crawler belt during use. The simple static conveying can easily lead to uneven heating of the workpiece, resulting in local overheating or insufficient drying, and thus poor drying effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot-dip galvanizing rotary drying device, comprising a drying chamber, with an inlet and an outlet respectively provided on both sides of the drying chamber, a bottom plate installed at the bottom of the drying chamber, the inlet and outlet extending through both sides of the bottom plate, a conveying assembly installed at the top of the bottom plate, a moving assembly installed at the top of the drying chamber, a hydraulic cylinder installed at the bottom of the moving assembly, a clamping plate installed at the bottom of the hydraulic cylinder, a support frame installed at the bottom of the drying chamber, a first rotary motor installed at the bottom of the support frame, a rotating shaft installed on the output shaft at the top of the first rotary motor, a rotating table installed at the top of the rotating shaft, and drying assemblies installed at both ends of the drying chamber.

[0007] Preferably, the conveying assembly includes a first groove located on the top of the base plate. Multiple sets of conveying rollers are installed inside the first groove. One end of one of the conveying rollers is connected to a first drive motor via the base plate. A conveyor belt is connected between the conveying rollers.

[0008] Preferably, the moving component includes a third groove located at the inner top of the drying chamber. A third drive motor is installed on one side inside the third groove. A threaded rod is installed on the output shaft of the third drive motor. A second slider is threadedly connected to the outer wall of the threaded rod. The hydraulic cylinder is installed at the bottom of the second slider. The second slider and the hydraulic cylinder are connected by a bearing.

[0009] Preferably, the drying assembly includes two ventilation pipes, which are located at opposite ends of the drying chamber. A mounting bracket is installed inside each ventilation pipe. A second rotary motor is installed on one side of the two mounting brackets facing away from each other. A fan blade is installed on the other side of the mounting brackets, and a heating wire is installed on the other side of the fan blades through the ventilation pipe.

[0010] Preferably, a second groove is provided on the inner top of both the feed inlet and the discharge outlet. A bidirectional threaded rod is installed inside the second groove. A second drive motor is installed at one end of the bidirectional threaded rod through the drying box. First sliders are symmetrically installed at both ends of the outer wall of the bidirectional threaded rod. A movable box door is installed at the bottom of the first slider.

[0011] Preferably, heating plates are installed at both ends of the top of the drying oven, the heating plates are located between the two ventilation pipes, and the interior of the heating plates is provided with several sets of ventilation holes.

[0012] Preferably, an observation window is installed inside the movable box door.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model uses a hydraulic cylinder to move the clamping plate down to fix and clamp the workpiece. The third drive motor drives the threaded rod to rotate, causing the second slider to move towards the discharge port. When the workpiece reaches the top of the rotating table, the hydraulic cylinder drives the clamping plate down to fix the workpiece to the top of the rotating table. The first rotating motor is started. The first rotating motor can drive the rotating table to rotate through the rotating shaft. Through the connection of the bearing, the workpiece can be rotated synchronously. The second rotating motor drives the fan blade to rotate, which can draw external air into the drying box. After the air is heated by the heating wire, the workpiece can be dried. This solves the problem that the existing hot-dip galvanizing drying device uses a conveyor belt to transport the workpiece. The simple static conveying can easily lead to uneven heating of the workpiece, resulting in local overheating or insufficient drying, and thus poor drying effect.

[0015] (2) The workpiece is moved closer to the drying box by the combined action of the conveying roller, the first drive motor and the conveyor belt. After the workpiece is dried, the threaded rod is rotated by the third drive motor to move the second slider towards the discharge port. The workpiece is placed on the conveyor belt by the hydraulic cylinder and the clamping plate. The two first sliders are moved away from each other by the second drive motors on both sides. This can move the two sets of movable box doors on both sides to the opposite end, thereby opening the inlet and outlet. The workpiece that has been dried is moved away from the drying box by the combined action of the conveying roller, the first drive motor and the conveyor belt. At the same time, the workpiece to be dried is moved into the drying box, thus realizing the automated conveying of the device and effectively improving the drying efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the left-side cross-sectional structure of the present invention. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of the present invention. Figure 2 ;

[0020] In the diagram: 1. Drying oven; 2. Feed inlet; 3. Discharge outlet; 4. Base plate; 5. First groove; 6. Conveyor roller; 7. First drive motor; 8. Conveyor belt; 9. Second groove; 10. Bidirectional threaded rod; 11. Second drive motor; 12. First slider; 13. Movable door; 14. Observation window; 15. Third groove; 16. Third drive motor; 17. Threaded rod; 18. Second slider; 19. Bearing; 20. Hydraulic cylinder; 21. Clamping plate; 22. Support frame; 23. First rotary motor; 24. Rotating shaft; 25. Rotary table; 26. Ventilation pipe; 27. Fixing frame; 28. Second rotary motor; 29. ​​Fan blade; 30. Heating wire; 31. Heating plate; 32. Ventilation hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a hot-dip galvanizing rotary drying device, including a drying chamber 1. The drying chamber 1 has an inlet 2 and an outlet 3 on both sides. A bottom plate 4 is installed at the bottom of the drying chamber 1, with the inlet 2 and outlet 3 penetrating both sides of the bottom plate 4. A conveying assembly is installed on the top of the bottom plate 4. The conveying assembly includes a first groove 5 located on the top of the bottom plate 4. Multiple sets of conveying rollers 6 are installed inside the first groove 5. One end of one of the conveying rollers 6 is connected to a first drive motor 7 via the bottom plate 4. A conveyor belt 8 is connected between the conveying rollers 6. When a workpiece is placed on the conveyor belt 8, the workpiece moves towards the drying chamber 1 through the combined action of the conveying rollers 6, the first drive motor 7, and the conveyor belt 8. The inlet 2 and the outlet 3 are connected to the bottom of the drying chamber 1. The inner top of the discharge port 3 is provided with a second groove 9. A bidirectional threaded rod 10 is installed inside the second groove 9. One end of the bidirectional threaded rod 10 is connected to a second drive motor 11 via the drying chamber 1. The two ends of the outer wall of the bidirectional threaded rod 10 are symmetrically installed with first sliders 12. The bottom of the first sliders 12 is equipped with a movable door 13. The second drive motor 11 drives the bidirectional threaded rod 10 to rotate, causing the two first sliders 12 to move away from each other, thereby driving the two movable doors 13 to move to the opposite side, which in turn drives the feed port 2 to open. The workpiece enters the drying chamber 1 through the feed port 2. A moving assembly is installed on the inner top of the drying chamber 1. The moving assembly includes a third groove 15. The third groove 15 is located on the inner top of the drying chamber 1. A section of the third groove 15 is located inside the third groove 15. A third drive motor 16 is mounted on the side. A threaded rod 17 is mounted on the output shaft of the third drive motor 16. A second slider 18 is threadedly connected to the outer wall of the threaded rod 17. A hydraulic cylinder 20 is mounted on the bottom of the second slider 18. The second slider 18 and the hydraulic cylinder 20 are connected by a bearing 19. A hydraulic cylinder 20 is mounted on the bottom of the moving assembly. A clamping plate 21 is mounted on the bottom of the hydraulic cylinder 20. A support frame 22 is mounted on the bottom of the drying chamber 1. A first rotary motor 23 is mounted on the bottom of the support frame 22. A rotating shaft 24 is mounted on the output shaft at the top of the first rotary motor 23. A rotating table 25 is mounted on the top of the rotating shaft 24. The clamping plate 21 is moved downward by the hydraulic cylinder 20 to fix and clamp the workpiece. The threaded rod 17 is rotated by the third drive motor 16 to make the second slider 18 rotate. The two sliders 18 move towards the discharge port 3. When the workpiece reaches directly above the rotary table 25, the hydraulic cylinder 20 drives the clamping plate 21 to move down and fix the workpiece to the top of the rotary table 25. The first rotary motor 23 is started. The first rotary motor 23 can drive the rotary table 25 to rotate through the rotating shaft 24. Through the connection of the bearing 19, the workpiece can be driven to rotate synchronously. Drying components are installed at both ends of the drying chamber 1. The drying components include two ventilation pipes 26, which are located at both ends of the drying chamber 1. The ventilation pipes 26 are respectively installed inside the ventilation pipes 26. The second rotary motor 28 is installed on one side of the two fixed frames 27 opposite to each other. The fan blades 29 are installed on the other side of the fixed frames 27. The heating wires 30 are installed on the other side of the fan blades 29 through the ventilation pipes 26.The second rotary motor 28 drives the fan blades 29 to rotate, drawing external air into the drying chamber 1. The air is then heated by the heating wire 30 to dry the workpiece. After drying, the third drive motor 16 drives the threaded rod 17 to rotate, moving the second slider 18 towards the discharge port 3. The hydraulic cylinder 20 and clamping plate 21 place the workpiece onto the conveyor belt 8. The second drive motors 11 on both sides drive the bidirectional threaded rods 10 to rotate, causing the two first sliders 12 to move away from each other. This moves the two sets of movable chamber doors 13 on both sides towards opposite ends, opening the inlet 2 and outlet 3. The combined action of the conveyor roller 6, the first drive motor 7, and the conveyor belt 8 moves the dried workpiece away from the drying chamber 1 while simultaneously drawing the workpiece to be dried into the drying chamber 1. This automated conveying system effectively improves the drying efficiency of the equipment.

[0023] Please see Figure 4 Heating plates 31 are installed at both ends of the top of the drying oven 1. The heating plates 31 are located between two ventilation pipes 26. Several sets of ventilation holes 32 are provided inside the heating plates 31. The air can be heated by the heating plates 31, which can effectively improve the drying efficiency of the workpiece. Hot air is blown onto the surface of the workpiece through the ventilation holes 32, which can improve the uniformity of drying the workpiece.

[0024] Please see Figure 3 The interior of the movable box door 13 is equipped with an observation window 14. The observation window 14 is made of transparent glass. Through the observation window 14, it is easy to observe the drying status of the workpieces inside the drying box 1, and to open the feed port 2 and the discharge port 3 in time to transport the workpieces.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hot dip galvanizing rotary drying apparatus comprising a drying box (1), characterized in that: The both sides of the drying box (1) are respectively provided with feeding port (2) and discharge port (3), the bottom of the drying box (1) is provided with bottom plate (4), the both sides of the bottom plate (4) are through the feeding port (2) and the discharge port (3), the top of the bottom plate (4) is provided with conveying assembly, the top of the drying box (1) is provided with moving assembly, the bottom of moving assembly is provided with hydraulic cylinder (20), the bottom of the hydraulic cylinder (20) is provided with clamping plate (21), the bottom of the drying box (1) is provided with support frame (22), the bottom of the support frame (22) is provided with first rotary motor (23), the output shaft of the top of the first rotary motor (23) is provided with rotating shaft (24), the top of the rotating shaft (24) is provided with rotating table (25), the both ends of the drying box (1) are provided with drying assembly.

2. A hot dip galvanizing rotary drying apparatus according to claim 1, characterized in that: Conveying assembly includes first recess (5), the first recess (5) is located on the top of the bottom plate (4), a plurality of conveying rollers (6) are installed in the first recess (5), one end of the conveying roller (6) on one side is installed with first drive motor (7) through the bottom plate (4), transmission connection is formed between the conveying roller (6).

3. A hot dip galvanizing rotary drying apparatus according to claim 1, wherein: Moving assembly includes third recess (15), the third recess (15) is located on the top of the drying box (1), one side of the third recess (15) is provided with third drive motor (16), the output shaft of the third drive motor (16) is provided with threaded rod (17), the outer wall of the threaded rod (17) is threadedly connected with second sliding block (18), the bottom of the second sliding block (18) is provided with the hydraulic cylinder (20), the second sliding block (18) and the hydraulic cylinder (20) are connected through bearing (19).

4. The apparatus according to claim 1, wherein: Drying assembly includes two ventilation pipes (26), two ventilation pipes (26) are located at the both ends of the drying box (1), the inside of the ventilation pipe (26) is provided with fixing frame (27), the side, away from each other, of the two fixing frames (27) is provided with second rotary motor (28), the other side of the fixing frame (27) is provided with fan blade (29), the other side of the fan blade (29) is provided with electric heating wire (30) through the ventilation pipe (26).

5. The apparatus according to claim 1, wherein: The top of the feeding port (2) and the discharge port (3) is provided with second recess (9), the inside of the second recess (9) is provided with bidirectional threaded rod (10), one end of the bidirectional threaded rod (10) is provided with second drive motor (11) through the drying box (1), the both ends of the outer wall of the bidirectional threaded rod (10) are symmetrically provided with first sliding block (12), the bottom of the first sliding block (12) is provided with movable box door (13).

6. A hot dip galvanizing rotary drying apparatus according to claim 4, wherein: The both ends of the top of the drying box (1) are provided with heating plate (31), the heating plate (31) is located between the two ventilation pipes (26), the inside of the heating plate (31) is provided with a plurality of groups of ventilation holes (32).

7. A hot dip galvanizing rotary drying apparatus according to claim 5, wherein: The inside of the movable box door (13) is provided with observation window (14).

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