A device for sampling and cooling air for use in a steel mill and method of use

Abstract

The application discloses a kind of for steel plant sampling cooling air cooling device and use method, belong to steel plant sample cooling field.The application of a kind of for steel plant sampling cooling air cooling device and use method, including baffle, the side of baffle is provided with first air inlet frame;The side of the air inlet hose outside is provided with air inlet hand valve, the first air inlet frame, air inlet hose and air inlet hand valve are all sealed connection, the upper end of the air inlet hand valve is provided with cooling material placing frame.The application solves the problem that the cooling table of existing steel cooling is fixed in the actual use process, the heat dissipation orientation of steel, the heat dissipation orientation fixed can make the temperature of steel gradually reduce from one side to the other side, the compressed air transmission of the air inlet hose is shunted by the air outlet side pipe, shunting makes compressed gas respectively simultaneously enter first air inlet frame and second air inlet frame, and steel is cooled simultaneously, avoid the temperature of steel gradually reduce from one side to the other side.

Description

Technical Field

[0001] This invention relates to the field of sample cooling in steel plants, specifically to an air-cooled device and method for using it for sample cooling in steelmaking plants. Background Technology

[0002] Steel mills are heavy industry, secondary industry, manufacturing, capital-intensive industry, fixed assets and factory types. In the steelmaking process, the processing of metal materials requires heating the metal. After heating the metal materials, it is necessary to test the state and effect of the liquid metal. The testing of liquid metal requires sampling, which facilitates subsequent testing. After sampling, it needs to be cooled. Different cooling methods are used in the cooling process, among which air cooling is a more efficient cooling method.

[0003] Chinese Patent Publication No. CN210474037U discloses a cooling platform for cooling steel, including a frame on which multiple identical rollers are rotatably connected. The frame is also equipped with a drive mechanism for rotating the rollers. A support cover is provided above the frame, and the support cover is equipped with an air-cooling device and a water-cooling device for cooling the steel. This invention has a simple structure, is easy to operate, and is highly practical. By setting up air-cooling and water-cooling devices, the air blown out by the rotating fan blades encounters the cold water pipes before blowing air onto the steel, accelerating the cooling of the steel. This solves the problem that the natural cooling process of steel takes a long time and reduces the efficiency of steel inspection.

[0004] In actual use, the cooling platform for cooling steel in the aforementioned patent has a fixed heat dissipation direction for the steel. This fixed direction causes the steel to cool down gradually from one side to the other, and the temperature does not drop simultaneously. This results in uneven composition of the sampled material, which is not conducive to the testing of the steel. Therefore, it does not meet the existing requirements. In response, we propose an air-cooled device and its usage method for sampling and cooling in steelmaking plants. Summary of the Invention

[0005] The purpose of this invention is to provide an air-cooled device and method for sampling and cooling in steel plants. The device splits the compressed air transmitted through the intake hose via an outlet pipe, allowing the compressed air to simultaneously enter a first intake frame and a second intake frame. The compressed air entering the first intake frame contacts and cools the lower end of the steel through a connecting pipe, while the compressed air entering the second intake frame is simultaneously discharged through eight outlets, exiting from the upper end of the steel. This simultaneous cooling of both ends improves the cooling effect and efficiency. Furthermore, the simultaneous cooling of the steel avoids a gradual decrease in temperature from one side to the other, which is beneficial for subsequent testing and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air-cooled device for sampling and cooling in a steel plant, comprising a baffle, a first air inlet frame provided on one side of the baffle, and a first support frame provided on both sides of the lower end of the first air inlet frame, wherein the first support frame is fixedly connected to the baffle and the first air inlet frame by bolts.

[0007] It also includes an intake hose, which is disposed between two first support frames. An intake hand valve is provided on one side of the intake hose. The first intake frame, the intake hose and the intake hand valve are all sealed together. A cooling material placement frame is provided at the upper end of the intake hand valve. The cooling material placement frame is sealed to the first intake frame through a connecting pipe. A second intake frame is provided at the upper end of the cooling material placement frame. The second intake frame and the cooling material placement frame are an integral structure. One side between the second intake frame and the first intake frame is sealed to the first intake frame through an air outlet pipe.

[0008] Preferably, a cooling chamber is provided inside the second air intake frame. The cooling chamber extends through and to both ends of the second air intake frame. Four trays are arranged in a ring inside the cooling chamber, and one end of each of the four trays is welded and fixed to the second air intake frame.

[0009] Preferably, the cooling cavity has eight air outlets evenly distributed in a ring shape on its outer side, and the air outlets extend into the interior of the second air intake frame.

[0010] Preferably, the upper end of the second air intake frame is provided with an air-cooling slot cover, and the front and rear ends of the outer side of the air-cooling slot cover are provided with second support frames. The two second support frames are rotatably connected to the air-cooling slot cover through a rotating connecting shaft, and the lower end of the second support frame is welded and fixed to the upper end of the second air intake frame.

[0011] Preferably, an infrared thermometer is provided in the middle of the upper end of the air-cooled trough cover, and a temperature display screen is provided at the front end of the infrared thermometer, and the temperature display screen is electrically connected to the infrared thermometer.

[0012] Preferably, each of the two first support frames has a mounting groove on one side, and both mounting grooves are embedded inside the baffle.

[0013] This invention provides another technical solution: a method for using an air-cooled device for sampling and cooling in a steel plant, comprising the following steps:

[0014] S1: Sampling is performed through a container. The sampled container and liquid metal are placed in a cooling chamber. The container is supported by four ring-shaped trays, exposing the lower end of the container.

[0015] S2: Place the air-cooled slot cover between the two second support frames and rotate it around the rotating connecting shaft as the center, so that it fits the upper end of the second air intake frame;

[0016] S3: Activate the intake hand valve. External compressed air enters the first intake frame through the intake hose. Part of it is transported to the cooling material placement frame, the contact container and the lower end of the liquid metal through the connecting pipe. The other part of the compressed air is transmitted through the exhaust side pipe and sent to the inside of the second intake frame, where it is further divided through the eight annular exhaust ports.

[0017] S4: The compressed air after being split is discharged again and comes into contact with the upper part of the container and the liquid metal exterior; at this time, the upper and lower ends of the container and the liquid metal exterior come into contact with the compressed air and are cooled at the same time.

[0018] Preferably, the air-cooled slot cover in S2 is rotated to the upper end of the second air intake frame, and the infrared emission position of the infrared thermometer is aligned with the center of the cooling cavity to detect the temperature at the infrared irradiation position, which is then displayed on the temperature display screen.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. This invention features a connecting pipe at the lower end of a cooling material placement frame, a first air inlet frame at the lower end of the connecting pipe, and a second air inlet frame at the upper end of the cooling material placement frame. A cooling chamber is formed through the interior of the second air inlet frame, and eight air outlets are arranged in a ring around the exterior of the cooling chamber. Compressed air transmitted through the air inlet hose is diverted via an air outlet side pipe, allowing the compressed air to simultaneously enter both the first and second air inlet frames. The compressed air entering the first air inlet frame contacts and cools the lower end of the steel through the connecting pipe, while the compressed air entering the second air inlet frame is diverted through the eight air outlets and simultaneously discharged from the upper end of the steel. This simultaneous cooling of both ends improves the cooling effect and efficiency. Furthermore, the simultaneous cooling of the steel avoids a gradual decrease in temperature from one side to the other, which is beneficial for subsequent testing.

[0021] 2. This invention features an air-cooling slot cover at the upper end of the second air intake frame and a pair of second support frames on one side of the second air intake frame. The two second support frames are rotatably connected to the air-cooling slot cover via a rotating connecting shaft. In actual use, the air-cooling slot cover rotates and wraps around the upper end of the cooling chamber. This firstly prevents foreign objects from entering and contacting the hot metal during the cooling process. Furthermore, the air-cooling slot cover allows the flowing and diverted compressed air to actively flow towards the hot metal, improving the cooling effect. On the other hand, the air-cooling slot cover, by rotating and being placed on the upper end of the second air intake frame, allows the temperature display screen to actively detect the temperature of the metal to be cooled inside the cooling chamber, which is supported by a tray. This facilitates the user's flexible adjustment of the device's start and stop. Attached Figure Description

[0022] Figure 1This is a perspective view of the overall external structure of the present invention;

[0023] Figure 2 This is a perspective view showing the positional relationship of the intake hose of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of a portion of region A in the middle;

[0025] Figure 4 This is a schematic diagram of the air-cooled trough cover of the present invention in its unfolded state;

[0026] Figure 5 This is a cross-sectional view of the compressed air flow trajectory of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view of a portion of region B in the middle.

[0028] In the diagram: 1. Baffle; 2. Mounting groove; 3. First support frame; 4. First air inlet frame; 5. Connecting pipe; 6. Cooling material placement frame; 7. Second air inlet frame; 8. Air-cooled slot cover; 9. Second support frame; 10. Infrared thermometer; 11. Temperature display screen; 12. Air outlet side pipe; 13. Air inlet hose; 14. Air inlet manual valve; 15. Rotary connecting shaft; 16. Tray; 17. Cooling chamber; 18. Air outlet. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Chinese patent CN210474037U discloses a cooling platform for cooling steel. However, this platform has a fixed heat dissipation direction, causing the steel to cool gradually from one side to the other. This uneven temperature decrease can lead to uneven material composition in the sampled material, which is detrimental to steel testing. Please refer to [link to relevant documentation]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment provides the following technical solution:

[0031] A cooling device for sampling in a steel plant includes a baffle 1. A first air inlet frame 4 is provided on one side of the baffle 1. First support frames 3 are provided on both sides of the lower end of the first air inlet frame 4. The first support frames 3 are fixedly connected to the baffle 1 and the first air inlet frame 4 by bolts. It also includes an air inlet hose 13, which is disposed between the two first support frames 3. An air inlet hand valve 14 is provided on one side of the air inlet hose 13. The first air inlet frame 4, the air inlet hose 13, and the air inlet hand valve 14 are all sealed together. A cooling material placement frame 6 is provided at the upper end of the air inlet hand valve 14. The cooling material placement frame 6 is sealed to the first air inlet frame 4 by a connecting pipe 5. A second air inlet frame 7 is provided at the upper end of the cooling material placement frame 6. The second air inlet frame 7 and the cooling material placement frame 6 are integral structures. One side of the second air inlet frame 7 and the first air inlet frame 4 are sealed together by an air outlet pipe 12. A cooling chamber 17 is provided inside the second air inlet frame 7. The cooling chamber 17 extends through and to both ends of the second air intake frame 7. Four trays 16 are arranged in a ring inside the cooling chamber 17, with one end of each tray 16 welded and fixed to the second air intake frame 7. Eight air outlets 18 are evenly distributed in a ring outside the cooling chamber 17, extending into the interior of the second air intake frame 7. The compressed air transmitted by the intake hose 13 is split through the exhaust side pipe 12, allowing the compressed gas to simultaneously enter the first air intake frame 4 and the second air intake frame 7. The compressed air entering the first air intake frame 4 contacts and cools the lower end of the steel through the connecting pipe 5, while the compressed air entering the second air intake frame 7 is split through the eight air outlets 18 and discharged simultaneously from the upper end of the steel. Simultaneous cooling at both ends improves the cooling effect and efficiency. Furthermore, the simultaneous cooling of the steel avoids a gradual decrease in temperature from one side to the other, which is beneficial for subsequent testing.

[0032] To address the issue of accurately determining the specific temperature of the metal to be cooled within existing devices, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment provides the following technical solution:

[0033] The upper end of the second air intake frame 7 is provided with an air-cooling slot cover 8. Second support frames 9 are provided at both the front and rear ends of one side of the air-cooling slot cover 8. The two second support frames 9 are rotatably connected to the air-cooling slot cover 8 via a rotating connecting shaft 15. The lower end of the second support frame 9 is welded and fixed to the upper end of the second air intake frame 7. An infrared thermometer 10 is provided in the middle of the upper end of the air-cooling slot cover 8. A temperature display screen 11 is provided at the front end of the infrared thermometer 10. The temperature display screen 11 is electrically connected to the infrared thermometer 10. Each side of the two first support frames 3 is provided with a mounting groove 2. The slots 2 are all embedded inside the baffle 1, and the air-cooled slot cover 8 is rotated and wrapped around the upper end of the cooling chamber 17. First, it prevents foreign objects from entering the interior and contacting the high-temperature metal during the cooling process. Furthermore, the air-cooled slot cover 8 allows the flowing and diverted compressed air to actively move towards the high-temperature metal, improving the cooling effect. On the other hand, the air-cooled slot cover 8 is rotated and placed on the upper end of the second air intake frame 7. The temperature display screen 11 actively detects the temperature of the metal to be cooled inside the cooling chamber 17, which is supported by the tray 16, making it convenient for the user to flexibly adjust the start and stop of the device.

[0034] To further explain the embodiments of the present invention, a method for using an air-cooled device for sampling and cooling in a steel plant is also provided, comprising the following steps:

[0035] Step 1: When using the device and cooling the sampled molten metal, according to... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 To prevent the steel from cooling down gradually from one side to the other, a sample is taken from a container. The sampled container and the liquid metal are placed in the cooling chamber 17 and supported by four ring-shaped trays 16, with the lower end of the container exposed.

[0036] Step 2: Rotate the air-cooled sump cover 8 between the two second support frames 9 with the rotating connecting shaft 15 as the center, rotate it and fit it against the upper end of the second air intake frame 7;

[0037] Step 3: Activate the intake hand valve 14. External compressed air enters the first intake frame 4 through the intake hose 13. After entering the first intake frame 4, part of it is transported to the cooling material placement frame 6 by the connecting pipe 5, contacting the container and the lower end of the liquid metal. The other part of the compressed air is transmitted through the air outlet side pipe 12, and then transported to the inside of the second intake frame 7. After entering the second intake frame 7, it is further divided through the eight annular air outlets 18.

[0038] Step 4: The compressed air after being diverted is discharged again and comes into contact with the upper part of the container and the liquid metal exterior. At this time, the upper and lower ends of the container and the liquid metal exterior come into contact with the compressed air and are cooled simultaneously. In order to make the device easy for users to use, the air-cooled tank cover 8 is rotated to the upper end of the second air intake frame 7. The infrared emission position of the infrared thermometer 10 is aligned with the center of the cooling chamber 17 to detect the temperature at the infrared irradiation position. The temperature is displayed on the temperature display screen 11, which allows users to understand the internal cooling status in a timely manner. The overall heat dissipation of the device can be flexibly controlled by manually adjusting the closing of the air intake hand valve 14.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind-cooled device for sampling and cooling in a steel plant, characterized in that: Includes a baffle (1), a first air intake frame (4) is provided on one side of the baffle (1), and a first support frame (3) is provided on both sides of the lower end of the first air intake frame (4). The first support frame (3) is fixedly connected to the baffle (1) and the first air intake frame (4) by bolts. It also includes an air intake hose (13), which is disposed between two first support frames (3). An air intake hand valve (14) is disposed on one side of the outside of the air intake hose (13). The first air intake frame (4), the air intake hose (13) and the air intake hand valve (14) are all sealed together. A cooling material placement frame (6) is disposed at the upper end of the air intake hand valve (14). The cooling material placement frame (6) and the first air intake frame (4) are sealed together by a connecting pipe (5). A second air intake frame (7) is disposed at the upper end of the cooling material placement frame (6). The second air intake frame (7) and the cooling material placement frame (6) are an integral structure. One side between the second air intake frame (7) and the first air intake frame (4) is sealed together by an air outlet side pipe (12). The second air intake frame (7) is provided with a cooling chamber (17), which extends through and to the upper and lower ends of the second air intake frame (7). The cooling chamber (17) is provided with four trays (16) in a ring shape inside, and one end of each of the four trays (16) is welded and fixed to the second air intake frame (7). The cooling chamber (17) has eight air outlets (18) evenly distributed in a ring on the outside, and the air outlets (18) extend into the interior of the second air intake frame (7).

2. The air-cooled device for sampling and cooling in a steel plant according to claim 1, characterized in that: The upper end of the second air intake frame (7) is provided with an air-cooled slot cover (8). The front and rear ends of the outer side of the air-cooled slot cover (8) are provided with second support frames (9). The two second support frames (9) are rotatably connected to the air-cooled slot cover (8) through a rotating connecting shaft (15). The lower end of the second support frame (9) is welded and fixed to the upper end of the second air intake frame (7).

3. The air-cooled device for sampling and cooling in a steel plant according to claim 2, characterized in that: An infrared thermometer (10) is provided at the middle of the upper end of the air-cooled trough cover (8). A temperature display screen (11) is provided at the front end of the infrared thermometer (10). The temperature display screen (11) is electrically connected to the infrared thermometer (10).

4. The air-cooled device for sampling and cooling in a steel plant according to claim 1, characterized in that: Each of the two first support frames (3) has a mounting groove (2) on one side, and both mounting grooves (2) are embedded inside the baffle (1).

5. A method of using an air-cooled device for sampling and cooling in a steel plant according to any one of claims 1-3, characterized in that: Includes the following steps: S1: Sampling is performed through a container. The sampled container and liquid metal are placed in a cooling chamber (17). The container is supported by four trays (16) arranged in a ring, exposing the lower end of the container. S2: Rotate the air-cooled sump cover (8) between the two second support frames (9) with the rotating connecting shaft (15) as the center, and fit it against the upper end of the second air intake frame (7); S3: Start the intake hand valve (14). External compressed air enters the first intake frame (4) through the intake hose (13). Part of it is transported to the cooling material placement frame (6) through the connecting pipe (5), contacting the container and the lower end of the liquid metal. The other part of the compressed air is transmitted through the air outlet side pipe (12) and sent to the inside of the second intake frame (7) for further diversion through the eight annular air outlets (18). S4: The compressed air after being split is discharged again and comes into contact with the upper part of the container and the liquid metal exterior; at this time, the upper and lower ends of the container and the liquid metal exterior come into contact with the compressed air and are cooled at the same time.

6. The method of using an air-cooled device for sampling and cooling in a steel plant according to claim 5, characterized in that: The air-cooled slot cover (8) in S2 is rotated to the upper end of the second air intake frame (7). The infrared emission position of the infrared thermometer (10) is aligned with the center of the cooling cavity (17) to detect the temperature at the infrared irradiation position, and the temperature is displayed on the temperature display screen (11).

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