Device for generating anti-corrosion layer through medium-frequency heating of steel pipe
By using intermediate frequency heating and vibration devices in the steel pipe anti-corrosion layer generation equipment, combined with conveying and flipping devices, the problem of difficult to control the heating temperature of the steel pipe is solved, and the uniformity of the anti-corrosion layer and product quality are improved.
Patent Information
- Application Number
- CN202420987052.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-09
AI Technical Summary
In the existing steel pipe anti-corrosion layer generation technology, the heating temperature of the steel pipe is difficult to control, resulting in uneven anti-corrosion coating and affecting product quality.
The intermediate frequency heating device is used to combine the conveying and flip devices, and the steel pipe is heated using the principle of electromagnetic induction, and the anticorrosion material hot flux is uniformly spread through the vibration device and multiple anticorrosion material outlets to form a uniform inner and outer anticorrosion layer.
It realizes accurate control of the heating temperature of steel pipes and uniformity of the anti-corrosion layer, improving product quality.
Smart Images
Figure CN222220183U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel pipe anti-corrosion equipment, in particular to a device for generating an anti-corrosion layer for a steel pipe. Background Art
[0002] Large-diameter steel pipes (for example, with a diameter greater than 500mm) are mainly used in the construction of water supply trunks, urban sewage, and gas main networks. When using steel pipes, they need to be sprayed with internal and external anti-corrosion coatings, and the steel pipes need to be preheated before spraying. For the formation of the anti-corrosion layer of the steel pipe, an anti-corrosion material hot melt is used. The anti-corrosion material hot melt is a powdery or granular material. When producing the anti-corrosion layer on the steel pipe, the anti-corrosion material hot melt needs to be melted when heated or the steel pipe is heated. The anti-corrosion material hot melt condenses on the surface of the steel pipe and can be coated on the outside of the steel pipe to form an anti-corrosion layer.
[0003] In the prior art, the anti-corrosion layer of a steel pipe is formed by heating the entire steel pipe, placing the steel pipe on a flipping device, sprinkling an anti-corrosion material hot melt on the surface and inside of the steel pipe, flipping the steel pipe, and allowing the anti-corrosion material hot melt to condense and form an anti-corrosion coating on the steel pipe. This method has the disadvantages of uneven anti-corrosion coating and difficult to control heating temperature of the steel pipe, which affects the quality of the anti-corrosion layer of the steel pipe. Summary of the invention
[0004] The purpose of the utility model is to provide a device for generating an anti-corrosion layer by medium frequency heating of steel pipes in view of the above shortcomings, which has the advantages of easy control of the heating temperature of the steel pipe, uniform anti-corrosion layer produced and good product quality.
[0005] The technical solution of the utility model is implemented as follows: a device for generating an anti-corrosion layer by medium-frequency heating of steel pipes includes a device frame, which is characterized in that: a conveying roller for conveying the steel pipe from right to left is installed on the device frame, and the conveying roller is connected to a conveying motor; a rotating roller connected to a rotating motor is also installed on the device frame, and the operation of the rotating motor drives the rotating roller to rotate, which can drive the steel pipe to be processed to turn over; the conveying roller and the rotating roller are the operating parts of the steel pipe to be coated with the anti-corrosion layer, and the operation of the conveying roller can convey the steel pipe from right to left; a power supply connected to the device frame is also installed. The medium frequency heating device is a heating ring, which is installed around the operating part; a container for hot melt of anti-corrosion materials is also installed on the device frame, and the container is connected to the output pipe, and the output pipe has an anti-corrosion material outlet; a vertical plate is installed on the right side of the device frame, and a pull rope is connected to the vertical plate, and it also includes a material spreading trolley; the anti-corrosion material outlet is installed on the material spreading trolley, and these anti-corrosion material outlets are internal anti-corrosion material outlets; under the action of the pull rope, the material spreading trolley is on the right side of the heating ring, and when in use, the material spreading trolley is placed inside the steel pipe.
[0006] Furthermore, the anti-corrosion material outlets are also opened in front of the heating ring, around the operating part, and facing the operating part. These anti-corrosion material outlets are external anti-corrosion material outlets.
[0007] Furthermore, there are multiple external anti-corrosion material outlets, and the multiple external anti-corrosion material outlets are evenly distributed around the operating part.
[0008] Furthermore, the material spreading trolley has wheels at the four lower corners, and the wheels have a middle wheel centerline, and the wheel centerline is arranged parallel to the centerline of the steel pipe.
[0009] Furthermore, a vibration device is installed on the material spreading trolley, and the amplitude of the vibration device is 0.5-1 mm and the vibration frequency is 10-20 Hz.
[0010] The beneficial effects of the utility model are as follows: such a device for generating an anti-corrosion layer by medium-frequency heating of a steel pipe has the advantages of easy control of the heating temperature of the steel pipe, uniform anti-corrosion layer produced and good product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the longitudinal section structure of the utility model when it is used.
[0012] Figure 2 yes Figure 1 Schematic diagram of the structure in the A-A direction.
[0013] Figure 3 yes Figure 1 Schematic diagram of the B-B direction in FIG.
[0014] Figure 4 yes Figure 1 Schematic diagram of the C-C direction.
[0015] Figure 5 yes Figure 1 Bottom view of the small and medium-sized car.
[0016] Among them: 1. device frame 2, conveying roller 21, conveying motor 3, rotating roller 31, rotating motor 4, steel pipe 5, medium frequency heating device 6, packaging box 61, output pipe 62, anti-corrosion material outlet 621, internal anti-corrosion material outlet 622, external anti-corrosion material outlet 7, vertical plate 8, material spreading trolley 81, wheels 9, vibration device. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] like Figure 1 , 2 As shown in , 3 and 4, a device for generating an anti-corrosion layer by medium-frequency heating of steel pipes comprises a device frame 1, which is characterized in that: a conveying roller 2 for conveying the steel pipe from right to left is installed on the device frame, and the conveying roller is connected to a conveying motor 21; a rotating roller 3 connected to a rotating motor 31 is also installed on the device frame, and the rotating motor is running to drive the rotating roller to rotate, which can drive the steel pipe 4 to be processed to turn over; the conveying roller and the rotating roller are the running parts of the steel pipe 4 to be coated with the anti-corrosion layer, and the operation of the conveying roller can convey the steel pipe from right to left; a medium-frequency heating device connected to a power source is also installed on the device frame 5. The medium frequency heating device is a heating ring, which is installed around the operating part; a container box 6 for hot melt of anti-corrosion material is also installed on the device frame, and the container box is connected to the output pipe 61, and the output pipe has an anti-corrosion material outlet 62; a vertical plate 7 is installed on the right side of the device frame, and a pull rope is connected to the vertical plate, and it also includes a material spreading trolley 8; the anti-corrosion material outlet is installed on the material spreading trolley, and these anti-corrosion material outlets are internal anti-corrosion material outlets 621; under the action of the pull rope, the material spreading trolley is on the right side of the heating ring, and when in use, the material spreading trolley is placed inside the steel pipe.
[0019] The medium frequency heating device uses the principle of electromagnetic induction to generate eddy currents in the workpiece placed in the induction coil, thereby heating the workpiece to the required temperature. The device adopts series resonance or parallel resonance, so the power factor is high. Compared with the traditional heating method, it has the advantages of high efficiency and low pollution. The device is widely used in forging and metal heat treatment industries, and the medium frequency heating device is a component in the prior art.
[0020] The utility model adopts the above-mentioned technical scheme, sprinkles the hot melt of anti-corrosion material on the inside of the steel pipe before heating the steel pipe, heats the steel pipe with a medium frequency heating device, and melts the hot melt of anti-corrosion material in the steel pipe. As the steel pipe rotates and runs, the molten hot melt of anti-corrosion material flows on the entire inner wall side of the steel pipe. The steel pipe runs to the left, and the hot melt of anti-corrosion material condenses and adheres to the inner surface of the steel pipe to form an inner anti-corrosion layer. Since the utility model adopts a medium frequency heating device and the anti-corrosion layer is formed on the steel pipe in a rotating state, it can achieve uniform heating, average anti-corrosion coating and good product quality, thereby achieving the purpose of the utility model.
[0021] Furthermore, the anti-corrosion material outlets are also opened in front of the heating ring, around the operating part, and facing the operating part. These anti-corrosion material outlets are external anti-corrosion material outlets 622.
[0022] The above arrangement of the utility model can also form an anti-corrosion layer outside the steel pipe.
[0023] Furthermore, there are multiple external anti-corrosion material outlets, and the multiple external anti-corrosion material outlets are evenly distributed around the operating part.
[0024] The above arrangement of the utility model forms a more uniform anti-corrosion layer.
[0025] Further speaking, if Figure 5 As shown, the material spreading trolley has wheels 81 at the four lower corners, and the wheels have a middle wheel centerline, which is arranged parallel to the centerline of the steel pipe.
[0026] The utility model is arranged in this way, so as to ensure that the material spreading trolley runs stably inside the steel pipe.
[0027] Furthermore, a vibration device 9 is installed on the material spreading trolley, and the amplitude of the vibration device is 0.5-1 mm and the vibration frequency is 10-20 Hz.
[0028] The utility model is configured in this way, so that there are no bubbles in the anti-corrosion coating, and the surface of the anti-corrosion coating can be made smoother. The vibration device generates vibrations, and these vibrations are transmitted to the steel pipe, which also generates vibrations, and the molten anti-corrosion material also condenses during the vibration, which can eliminate the bubbles inside. Such amplitude and frequency can also make the surface of the produced anti-corrosion material relatively smooth, for example, eliminating the phenomenon of tangling.
[0029] In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by “upper”, “lower”, “horizontal”, “left”, “right”, etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms “first”, “second”, etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0030] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.
Claims
1. A device for generating an anti-corrosion layer by medium frequency heating of a steel pipe, including a device frame, characterized in that: A conveying roller for conveying the steel pipe from right to left is installed on the device frame, and the conveying roller is connected to a conveying motor; a rotating roller connected to a rotating motor is also installed on the device frame, and the rotating motor drives the rotating roller to rotate, which can drive the steel pipe to be processed to turn over; the conveying roller and the rotating roller are the running parts of the steel pipe to be coated with an anti-corrosion layer, and the operation of the conveying roller can convey the steel pipe from right to left; a medium-frequency heating device connected to a power supply is also installed on the device frame, and the medium-frequency heating device is a heating Ring, the heating ring is installed around the operating part; a container for hot melt of anti-corrosion material is also installed on the device frame, the container is connected to the output pipe, and the output pipe has an anti-corrosion material outlet; a vertical plate is installed on the right side of the device frame, and a pull rope is connected to the vertical plate, and it also includes a material spreading trolley; the anti-corrosion material outlet is installed on the material spreading trolley, and these anti-corrosion material outlets are internal anti-corrosion material outlets; under the action of the pull rope, the material spreading trolley is on the right side of the heating ring, and when in use, the material spreading trolley is placed inside the steel pipe.
2. The device for forming an anti-corrosion layer by medium-frequency heating of steel pipe according to claim 1 is characterized in that: The anti-corrosion material outlets are also opened in front of the heating ring, around the operating part, and facing the operating part. These anti-corrosion material outlets are external anti-corrosion material outlets.
3. The device for forming an anti-corrosion layer by medium-frequency heating of steel pipe according to claim 2 is characterized in that: There are multiple external anti-corrosion material outlets, and the multiple external anti-corrosion material outlets are evenly distributed around the operating part.
4. The device for forming an anti-corrosion layer by medium frequency heating of steel pipe according to claim 1, 2 or 3, characterized in that: The material spreading trolley has wheels at the four lower corners, and the wheels have a middle wheel center line, and the wheel center line is arranged parallel to the center line of the steel pipe.
5. The device for forming an anti-corrosion layer by medium frequency heating of steel pipe according to claim 1, 2 or 3, characterized in that: A vibration device is also installed on the material spreading trolley, wherein the amplitude of the vibration device is 0.5-1 mm and the vibration frequency is 10-20 Hz.