Transport roller in steel billet heating furnace

Abstract

The utility model discloses an in-furnace transport roller of a billet heating furnace, which relates to the technical field of transport rollers and comprises a roller body, a mounting column is mounted at one end of the roller body, a mounting pipe is mounted at one end, far away from the mounting column, of the roller body, a containing cavity is formed in the roller body, and a spraying mechanism is arranged in the containing cavity. And the spraying mechanism is used for cooling the roller body, and a backflow mechanism is arranged on the side of the mounting pipe. According to the utility model, through the arrangement of the spraying mechanism and the backflow mechanism, the interior of the roller body can be sprayed, so that the roller body is cooled, the roller body is prevented from being deformed or damaged due to high temperature, then accumulated water in the roller body is timely guided out, the adverse effect on the operation of the roller body caused by excessive accumulated water is avoided, and the service life of the roller body is prolonged. And the scrapers are arranged, so that attachments on the roller body can be scraped off, and the attachments are prevented from corroding the surface of the conveying roller or affecting normal conveying of the steel billets.

Description

Technical Field

[0001] The utility model relates to the technical field of transport rollers, and particularly relates to an in-furnace transport roller for a billet heating furnace. Background Art

[0002] In the modern steel production process, the billet heating furnace, as one of the key equipment in the hot rolling production line, plays a crucial role. Before the billet enters the rolling mill for rolling, it needs to be uniformly heated to an appropriate temperature in the heating furnace to ensure the smooth progress of the rolling process and the stability of product quality.

[0003] The transport roller is located inside the heating furnace and is used to transport cold coils or semi-finished billets from the feeding end to the discharging end. However, during the operation, a problem will be encountered, that is, the transport roller needs to bear high temperature and weight, and is prone to deformation or damage. Therefore, an in-furnace transport roller for a billet heating furnace is proposed to solve the above problems. Summary of the Utility Model

[0004] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0005] An in-furnace transport roller for a billet heating furnace includes a roller body. One end of the roller body is provided with a mounting column, and the other end of the roller body far from the mounting column is provided with a mounting tube. The mounting column and the mounting tube are made of the same material. A receiving cavity is opened inside the roller body, and a spraying mechanism is arranged inside the receiving cavity. The spraying mechanism is used to cool the roller body. A reflux mechanism is arranged on the side of the mounting tube, and the reflux mechanism is used to drain the accumulated water inside the roller body.

[0006] Further, the spraying mechanism includes a rotary joint installed at the end of the mounting tube. The model of the rotary joint here is: KCL20ARH. A first connecting plate is installed on the side of the rotary joint far from the mounting tube. A first water outlet pipe is arranged inside the receiving cavity. A plurality of atomizing nozzles are communicated with one side of the outer wall of the first water outlet pipe. A second water outlet pipe is arranged at the end of the first water outlet pipe close to the rotary joint. A first connecting pipe is installed at the end of the first connecting plate far from the mounting tube, and a second connecting plate is installed at the end of the first connecting pipe far from the first connecting plate.

[0007] Further, the reflux mechanism includes a through hole opened on one side of the outer wall of the first connecting plate, and a reflux pipe is communicated with one side of the outer wall of the second connecting plate.

[0008] Further, the end of the first water outlet pipe far from the roller body penetrates through the first connecting plate and the second connecting plate and is connected to the second water outlet pipe at the end.

[0009] Furthermore, fixed plates are symmetrically installed on the inner wall of the roller body. Limiting holes are provided on the inner wall of the ends of the fixed plates, and the inner wall of the limiting holes is rotatably connected to the first water outlet pipe. A wrapping mechanism is arranged on the outer wall of the second water outlet pipe, and the wrapping mechanism is used to prevent the second water outlet pipe from being exposed to high temperatures.

[0010] Furthermore, the wrapping mechanism includes a first connecting column installed on one side of the outer wall of the second connecting plate. A second connecting column is installed on the outer wall of the end of the first connecting column. Both the second water outlet pipe and the return pipe are installed inside the first connecting column and the second connecting column. Here, the materials of the first connecting column and the second connecting column are ceramic fiber composite materials, which have excellent heat insulation performance and low thermal conductivity, and are ideal choices in the field of high-temperature heat insulation.

[0011] Furthermore, a fixing rod is installed on one side of the outer wall of the second connecting column, and a scraping plate is installed at the end of the fixing rod away from the second connecting column. Here, the material of the scraping plate is high-chromium heat-resistant steel.

[0012] The beneficial effects of the present utility model are as follows:

[0013] In the present utility model, through the arrangement of the spraying mechanism and the return mechanism, the inside of the roller body can be sprayed, thereby cooling the roller body and preventing the roller body from being deformed or damaged due to high temperature. Secondly, the accumulated water inside the roller body is promptly discharged, avoiding the adverse effects of excessive accumulated water on the operation of the roller body, such as increasing the burden on the roller body and affecting the heat transfer effect.

[0014] In the present utility model, through the arrangement of the scraping plate, the attachments on the roller body can be scraped off, preventing the attachments from corroding the surface of the transport roller or affecting the normal transportation of the steel billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a structural schematic diagram of the roller body of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the first water outlet pipe of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the second connecting plate of the present utility model;

[0019] Figure 5 is a structural schematic diagram of the through hole of the present utility model.

[0020] Reference numerals: 1, roller body; 2, spraying mechanism; 201, rotary joint; 202, first connecting plate; 203, first water outlet pipe; 204, atomizing nozzle; 205, second water outlet pipe; 3, mounting pipe; 4, accommodating cavity; 5, reflux mechanism; 501, through hole; 502, reflux pipe; 6, first connecting pipe; 7, second connecting plate; 8, fixing plate; 9, wrapping mechanism; 901, first connecting column; 902, second connecting column; 10, scraper; 11, mounting column. Detailed implementation mode

[0021] For the purpose of making the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0022] This application provides an in-furnace transport roller for a billet heating furnace, which is mainly used to solve the problems that the transport roller needs to bear high temperature and weight and is prone to deformation or damage, and provides the following technical solutions, which will be described in detail below with reference to Figures 1 to 5 Make a detailed description: Embodiment 1

[0023] An in-furnace transport roller for a billet heating furnace includes a roller body 1. One end of the roller body 1 is provided with a mounting column 11, and the end of the roller body 1 far from the mounting column 11 is provided with a mounting pipe 3. An accommodating cavity 4 is formed inside the roller body 1, and a spraying mechanism 2 is arranged inside the accommodating cavity 4. The spraying mechanism 2 is used to cool the roller body 1. Its specific components are as follows: including a rotary joint 201 installed at the end of the mounting pipe 3, a first connecting plate 202 is installed on the side of the rotary joint 201 far from the mounting pipe 3, a first water outlet pipe 203 is arranged inside the accommodating cavity 4, several atomizing nozzles 204 are communicated with one side of the outer wall of the first water outlet pipe 203, a second water outlet pipe 205 is arranged at one end of the first water outlet pipe 203 close to the rotary joint 201, and a reflux mechanism 5 is arranged on the side of the mounting pipe 3. The reflux mechanism 5 is used to drain the accumulated water inside the roller body 1. Its specific components are as follows: including a through hole 501 formed on one side of the outer wall of the first connecting plate 202, a reflux pipe 502 is communicated with one side of the outer wall of the second connecting plate 7, a first connecting pipe 6 is installed at the end of the first connecting plate 202 far from the mounting pipe 3, a second connecting plate 7 is installed at the end of the first connecting pipe 6 far from the first connecting plate 202, and one end of the first water outlet pipe 203 far from the roller body 1 penetrates through the first connecting plate 202 and the second connecting plate 7 and is connected to the second water outlet pipe 205 at the end.

[0024] The specific operation method and working principle of the device are as follows: during operation, when water flows through the second water outlet pipe 205 and the first water outlet pipe 203 and is transported to the atomizing nozzle 204, the atomizing nozzle 204 will spray clean water in the form of atomization to cool the inside of the roller body 1. Then, when the water accumulated inside the roller body 1 exceeds half of the space of its accommodating cavity 4, the accumulated water will flow back along the mounting tube 3 and the through hole 501 to the inside of the first connecting tube 6, and then continue to flow back to the inside of the reflux pipe 502, thereby achieving internal cooling of the roller body 1 and reflux of the accumulated water. Example 2

[0025] like Figures 1 to 5 As shown, in some embodiments, a fixing plate 8 is symmetrically installed on the inner wall of the roller body 1, a limiting hole is opened on the inner wall at the end of the fixing plate 8, and the inner wall of the limiting hole is rotatably connected to the first water outlet pipe 203, and a wrapping mechanism 9 is arranged on the outer wall of the second water outlet pipe 205. The wrapping mechanism 9 is used to prevent the second water outlet pipe 205 from being subjected to high temperature. The wrapping mechanism 9 includes a first connecting column 901 installed on one side of the outer wall of the second connecting plate 7, a second connecting column 902 is installed on the outer wall at the end of the first connecting column 901, the second water outlet pipe 205 and the return pipe 502 are both installed inside the first connecting column 901 and the second connecting column 902, a fixing rod is installed on one side of the outer wall of the second connecting column 902, and a scraper 10 is installed on the end of the fixing rod away from the second connecting column 902.

[0026] The specific operation method and working principle of the device are as follows: during operation, the first connecting column 901 and the second connecting column 902 are arranged to wrap the second water outlet pipe 205 and the return pipe 502. The material thereof is a ceramic fiber composite material, which can effectively isolate the influence of high temperature on the second water outlet pipe 205 and the return pipe 502. Then, the scraper 10 is arranged to scrape off the attachments on the roller body 1 to avoid affecting the transportation of steel.

[0027] Working step one: during the working process, the staff can connect a water pipe (a water pump is installed outside the heating furnace) to the second water outlet pipe 205, and a water pipe (both can be wrapped with ceramic fiber composite materials, and this water pipe can lead the refluxed water out of the heating furnace) to the reflux pipe 502, and then the water pump transports the water flow to the inside of the second water outlet pipe 205, and then transports it to the atomizing nozzle 204 through the first water outlet pipe 203. The atomizing nozzle 204 will spray clean water in the form of atomization to cool the inside of the roller body 1. Then, when the water accumulated inside the roller body 1 exceeds half of the space of its accommodating cavity 4, the accumulated water will flow back along the installation pipe 3, through the hole 501, to the inside of the first connecting pipe 6, and then continue to flow back to the inside of the reflux pipe 502, thereby realizing the internal cooling of the roller body 1 and the reflux of the accumulated water.

[0028] Working step 2: When the roller body 1 is rotating, the scraper 10 may scrape the attachments on the roller body 1 (mainly scraping attachments with a diameter greater than 3 mm). It should be noted that the distance between the scraper 10 and the roller body 1 is between 1 and 3 mm.

[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transport roller in a steel billet heating furnace, comprising a roller body (1), characterized in that: A mounting column (11) is mounted on one end of the roller body (1), a mounting tube (3) is mounted on one end of the roller body (1) away from the mounting column (11), a receiving chamber (4) is provided inside the roller body (1), and a spray mechanism (2) is arranged inside the receiving chamber (4), the spray mechanism (2) is used to cool the roller body (1), a reflux mechanism (5) is arranged on the side of the mounting tube (3), the reflux mechanism (5) is used to discharge the accumulated water inside the roller body (1); the spray mechanism (2) comprises a rotary joint (201) mounted on the end of the mounting tube (3), a first connecting plate (202) is mounted on a side of the rotary joint (201) away from the mounting tube (3), a first water outlet pipe (203) is arranged inside the receiving chamber (4), a plurality of atomizing nozzles (204) are connected to one side of the outer wall of the first water outlet pipe (203), and a second water outlet pipe (205) is arranged at one end of the first water outlet pipe (203) close to the rotary joint (201).

2. The in-furnace transport roller for a steel billet heating furnace according to claim 1, characterized in that: The first connecting plate (202) has an end away from the mounting tube (3) on which the first connecting plate (202) is mounted with a first connecting tube (6), and the end away from the first connecting plate (202) has an end on which the first connecting tube (6) is mounted with a second connecting plate (7).

3. The in-furnace transport roller for a steel billet heating furnace according to claim 2, characterized in that: The reflux mechanism (5) comprises a through hole (501) formed on one side of the outer wall of the first connecting plate (202), and one side of the outer wall of the second connecting plate (7) is connected to a reflux pipe (502).

4. The in-furnace transport roller for a steel billet heating furnace according to claim 2, characterized in that: One end of the first water outlet pipe (203) away from the roller body (1) passes through the first connecting plate (202) and the second connecting plate (7), and the end portion is connected to the second water outlet pipe (205).

5. The in-furnace transport roller for a steel billet heating furnace according to claim 2, characterized in that: A fixing plate (8) is symmetrically mounted on the inner wall of the roller body (1); a limiting hole is provided on the inner wall of the end of the fixing plate (8); and the inner wall of the limiting hole is rotatably connected to the first water outlet pipe (203); and a wrapping mechanism (9) is provided on the outer wall of the second water outlet pipe (205); the wrapping mechanism (9) is used to prevent the second water outlet pipe (205) from being subjected to high temperature.

6. The in-furnace transport roller for a steel billet heating furnace according to claim 5, characterized in that: The wrapping mechanism (9) comprises a first connecting column (901) mounted on one side of the outer wall of the second connecting plate (7); a second connecting column (902) is mounted on the outer wall of the end of the first connecting column (901); and the second water outlet pipe (205) and the return pipe (502) are both mounted inside the first connecting column (901) and the second connecting column (902).

7. The in-furnace transport roller for a steel billet heating furnace according to claim 6, characterized in that: A fixing rod is installed on one side of the outer wall of the second connecting column (902), and a scraper (10) is installed on one end of the fixing rod away from the second connecting column (902).

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