A device for rapid cooling of high-temperature steel and iron samples

Abstract

The application discloses a device for high-temperature steel and iron sample rapid cooling, and relates to the technical field of red sample cooling, which comprises a cooling liquid tank, and two or more work station tables are arranged above the cooling liquid tank; the device further comprises linear modules which are the same in number as the work station tables and one-to-one correspond to the work station tables, and are used for controlling the work station tables to ascend and descend; and an opening which is matched with the work station table is formed in the top of the cooling liquid tank. The device adopts immersion cooling instead of traditional spraying cooling, has a faster cooling speed, shortens the waiting time of the metal solution in the furnace, and saves production cost. The immersion cooling process does not generate a large amount of steam which is easy to splash, so it is not necessary to use the sealed container which must be equipped for the spraying cooling, the different samples can be individually water-cooled, it is not necessary to wait for all the samples to be initially cooled before water-cooling together, the speed of the whole detection is further improved, and the samples can share one cooling liquid tank, so that the cost of the cooling device is not increased.

Description

Technical Field

[0001] This invention relates to the field of hot sample cooling technology, specifically to a device for rapid cooling of high-temperature steel samples. Background Technology

[0002] In converters and refining stations, molten steel samples need to be taken from ladles or tundishes using immersion samplers, and rapid compositional analysis is performed on the extracted red samples, commonly known as "rapid analysis before the furnace." After extraction, the red samples need to be rapidly cooled before testing. Air cooling alone cannot meet the requirements for rapid cooling, so liquid cooling is usually used in conjunction. For example, Chinese invention patent application CN118730688A discloses an automatic red sample cooling device, including a base assembly, an upper cooling seat assembly mounted on top of the base assembly, a liquid inlet and an air inlet on the upper cooling seat assembly, an electrical control assembly inside the base assembly, a cylinder device mounted on top of the base assembly, a cooling water collection cylinder assembly mounted above the cylinder device, a sample-bearing position in the middle of the inner cavity of the cooling water collection cylinder assembly, a sensing device mounted on the sample-bearing position, and the outlet of the cooling water collection cylinder assembly connected to a drainage integrated pipe assembly.

[0003] Most existing cooling devices, including the aforementioned apparatus, cool samples by spraying. In actual production, multiple different types of samples typically need to be tested; some are cylindrical, others are racket-shaped. Different samples have different sizes and shapes, requiring varying initial cooling times. Since spraying must be conducted within a sealed container, and the container cannot be opened to handle the workpieces during the process, all samples from the same batch must be pre-cooled before being fed into the spray container. This undoubtedly affects the overall testing speed, resulting in longer waiting times for molten metal in the furnace. To achieve independent spraying for each sample, separate containers and cooling water supply systems are required, which would increase the manufacturing and maintenance costs of the cooling device. Therefore, how to reduce the overall sample testing time without increasing the cost of the cooling device is a problem that those skilled in the art need to solve. Summary of the Invention

[0004] The purpose of this invention is to provide a device for rapid cooling of high-temperature steel samples, thereby overcoming the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for rapid cooling of high-temperature steel samples, comprising a coolant tank, with two or more workstations arranged above the coolant tank; further comprising a linear module, the same number as the workstations and in a one-to-one correspondence with them, for controlling the lifting and lowering of the workstations; and an opening adapted to the workstations is provided on the top of the coolant tank.

[0006] As a preferred embodiment of the present invention, the workstation includes a compatible workstation that can support both cylindrical and racket samples, and a racket workstation specifically for supporting racket samples.

[0007] As a preferred embodiment of the present invention, a perforated annular baffle is fixedly installed on the compatible workstation.

[0008] As a preferred embodiment of the present invention, a plurality of limiting blocks arranged in a ring are fixedly installed on the racket station.

[0009] As a preferred embodiment of the present invention, a mounting platform is connected to the coolant tank, and a guide component is fixedly installed on the mounting platform at a position corresponding to the position above the compatible workstation.

[0010] As a preferred embodiment of the present invention, the number of compatible workstations is two, the number of racket workstations is one, and the racket workstation is located in the middle of the two compatible workstations.

[0011] As a preferred embodiment of the present invention, the linear module includes an electric telescopic rod fixedly installed on the mounting platform, an L-shaped support arm fixedly installed at the bottom end of the electric telescopic rod, and a workstation fixedly installed on the horizontal section of the support arm.

[0012] As a preferred embodiment of the present invention, the guide is a conical cylinder, and the diameter of the top opening of the guide is larger than the diameter of its bottom opening; the axis of the guide coincides with the axis of the annular baffle.

[0013] As a preferred embodiment of the present invention, photoelectric sensors are fixedly installed on the mounting platform at positions corresponding to the workstations. The photoelectric sensors are used to detect whether the sample is placed in the correct position.

[0014] As a preferred embodiment of the present invention, a circulation pump is provided in the coolant tank.

[0015] In the above technical solution, the present invention provides a device for rapid cooling of high-temperature steel samples, which adopts immersion cooling instead of traditional spray cooling. Because the sample is completely immersed in water, the cooling rate is faster, shortening the waiting time for molten metal in the furnace and saving production costs. Since the immersion cooling process does not generate a large amount of easily splashing steam, it eliminates the need for the sealed container required for spray cooling. Therefore, samples can be water-cooled at any time without waiting for all samples to be initially cooled before water cooling, further improving the overall testing speed. Furthermore, all samples can share a single cooling liquid tank, without increasing the cost of the cooling device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a first perspective view of the apparatus used for rapid cooling of high-temperature steel samples in the embodiment;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a second perspective view of the device used for rapid cooling of high-temperature steel samples in the embodiment;

[0020] Figure 4 This is a schematic diagram of the first working state of the compatible workstation and the racket workstation in the embodiment;

[0021] Figure 5 This is a schematic diagram of the second working state of the compatible workstation and the racket workstation in the embodiment.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Coolant tank; 101. Opening; 2. Workstation; 201. Compatible workstation; 202. Racket workstation; 3. Linear module; 301. Electric telescopic rod; 302. Support arm; 4. Circular baffle; 5. Limiting block; 6. Mounting platform; 7. Guide component; 8. Photoelectric sensor. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 , Figure 2 and Figure 3As shown, this embodiment provides a device for rapid cooling of high-temperature steel samples, including a coolant tank 1 filled with coolant. A circulation pump is installed in the coolant tank 1 to circulate the coolant water within the tank, serving both cooling and filtration purposes. The specific structure of the circulation pump is prior art and will not be elaborated upon here. This embodiment completely immerses the sample in the coolant tank 1, ensuring sufficient contact between the coolant and the sample. Compared to spray cooling, this shortens the cooling time, thus reducing the overall time required for hot metal sample testing. The waiting time for molten metal in the furnace is also shorter, reducing energy consumption costs in production. Samples in this field are generally cylindrical or racket-shaped. Two cylindrical samples, two racket-shaped samples, or two cylindrical samples and one racket-shaped sample are taken from each furnace for testing, depending on actual requirements. A workbench 2 is provided above the coolant tank 1. The workbench 2 includes a compatible workbench 201 that can support both cylindrical and racket samples, and a racket workbench 202 specifically for supporting racket samples. There are two compatible workbench 201s and one racket workbench 202. The racket workbench 202 is located between the two compatible workbench 201s. The top of the coolant tank 1 has an opening 101 that is adapted to the workbench 2.

[0026] Specifically, the operator uses a scoop to remove molten metal from the furnace and pours it into a sample box. After about 5 minutes of initial cooling, the surface of the racket sample drops to the maximum allowable temperature for water cooling, 600°C. A robotic arm picks up the racket sample from the sample box and transfers it to racket station 202. Racket station 202 descends, and the racket sample, along with racket station 202, is immersed in the coolant to begin cooling. After about 1 minute, the surface of the cylindrical sample also drops to the maximum allowable temperature for water cooling, 600°C. The robotic arm holds the sample box and pours the cylindrical sample onto compatibility station 201. Compatibility station 201 descends, as... Figure 4 As shown, the cylindrical sample, along with the compatible station 201, is immersed in the coolant to begin cooling. After 2 minutes, the racket sample has cooled completely, and the racket station 202 rises, as... Figure 5 As shown, the racket sample returns to its initial height to complete cooling. The robotic arm picks up the racket sample from racket station 202 and transfers it to the grinding station. After about one minute, the cylindrical sample cools down, and the compatibility station 201 rises, causing the cylindrical sample to return to its initial height to complete cooling. The robotic arm then holds the cylindrical sample from compatibility station 201 and transfers it to the grinding station for grinding. Since the racket sample and the cylindrical sample enter the coolant sequentially, there is a one-minute interval between their exit from the coolant. During this one-minute interval, the racket sample can be milled, and the cylindrical sample can directly enter the milling station for milling after exiting the coolant, thus reducing the overall inspection time.

[0027] It should be noted that since the sample temperature is approximately 600℃ before immersion in the coolant, upon contact with the coolant after immersion, the coolant on the sample surface instantly turns into water vapor, generating a large number of dense bubbles that adhere to the sample surface. Simply relying on the circulating water flow within coolant tank 1 is insufficient to separate the bubbles from the sample, as the bubbles affect the cooling efficiency. In this embodiment, during the racket sample cooling process, the compatible station 201 and the cylindrical sample enter the coolant from top to bottom, interacting with the coolant near the racket sample and generating water flow to promote bubble separation from the racket sample. During the cylindrical sample cooling process, the racket station 202 and the racket sample leave the coolant from bottom to top, interacting with the coolant near the cylindrical sample and generating water flow to promote bubble separation from the cylindrical sample. In summary, this embodiment employs immersion cooling, allowing the racket sample and cylindrical sample to enter the water sequentially. This not only makes the entire testing process more compact and shortens the waiting time for the molten metal in the furnace, but also generates water flow during the cooling process, promoting bubble separation from the sample surface and improving cooling efficiency.

[0028] like Figure 2 and Figure 3 As shown, the device for rapid cooling of high-temperature steel samples also includes linear modules 3, which are the same number as the workstations 2 and are positioned in a one-to-one correspondence. A mounting platform 6 is connected to the coolant tank 1. The linear modules 3 include an electrically operated telescopic rod 301 fixedly mounted on the mounting platform 6. An L-shaped support arm 302 is fixedly mounted at the bottom end of the electrically operated telescopic rod 301, and the workstation 2 is fixedly mounted on the horizontal section of the support arm 302. When the electrically operated telescopic rod 301 extends, the support arm 302 and the workstation 2 on it descend, immersing the sample in the coolant. When the electrically operated telescopic rod 301 retracts, the support arm 302 and the workstation 2 on it rise, restoring the sample to its initial height.

[0029] like Figure 2 As shown, a perforated annular baffle 4 is fixedly installed on the compatibility station 201. Multiple ring-shaped limiting blocks 5 are fixedly installed on the racket station 202. A guide 7 is fixedly installed on the mounting platform 6 above the compatibility station 201; the guide 7 is a conical cylinder, with the top opening diameter larger than the bottom opening diameter; the axis of the guide 7 coincides with the axis of the annular baffle 4. It should be noted that if all samples are racket samples, in the initial state, the heights of the compatibility station 201 and the racket station 202 are as follows... Figure 2 As shown, there is a certain space above it, so there will be no interference with the robotic arm. After the robotic arm picks up the racket sample from the sample box, it places the racket sample directly on racket station 202 or compatible station 201. The annular baffle 4 and the limiting block 5 are in contact with the outer wall of the racket sample, which can play a role in positioning and limiting the racket sample. If the sample is a racket sample and a cylindrical sample, in the initial state, the height of racket station 202 is as follows: Figure 2As shown, there is sufficient space above it to prevent interference with the robotic arm. Compatible station 201 requires further... Figure 2 The sample continues to rise from the indicated position until the top of the annular baffle 4 is flush with the bottom of the guide 7. The robotic arm holds the sample box and pours the cylindrical sample into the guide 7. The guide 7 guides the cylindrical sample as it slides down after detaching from the sample box, ensuring that the cylindrical sample falls accurately into the compatible station 201.

[0030] like Figure 2 As shown, photoelectric sensors 8 are fixedly installed on the mounting platform 6 at positions corresponding to the workstation 2. The photoelectric sensors 8 are used to detect whether the sample is placed in place. If the racket sample falls during the transfer process by the robot arm, the photoelectric sensor 8 will not detect the racket sample and will issue an alarm signal. If the cylindrical sample fails to fall accurately into the guide 7, the photoelectric sensor 8 will not detect the cylindrical sample and will also issue an alarm signal.

[0031] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for rapid cooling of high-temperature steel samples, characterized in that, It includes a coolant tank (1), and two or more workstations (2) are provided above the coolant tank (1); it also includes a linear module (3), which is the same number as the workstations (2) and corresponds to them in position, and is used to control the workstations (2) to lift and lower; the top of the coolant tank (1) is provided with an opening (101) that is compatible with the workstations (2).

2. The device for rapid cooling of high-temperature steel samples according to claim 1, characterized in that, The workstation (2) includes a compatible workstation (201) that can support both cylindrical and racket samples, and a racket workstation (202) specifically for supporting racket samples.

3. The apparatus for rapid cooling of high-temperature steel samples according to claim 2, characterized in that, A perforated annular baffle (4) is fixedly installed on the compatible workstation (201).

4. The apparatus for rapid cooling of high-temperature steel samples according to claim 2, characterized in that, Multiple limiting blocks (5) arranged in a ring are fixedly installed on the racket station (202).

5. The apparatus for rapid cooling of high-temperature steel samples according to claim 2, characterized in that, A mounting platform (6) is connected to the coolant tank (1), and a guide (7) is fixedly installed on the mounting platform (6) at the position above the compatible work station (201).

6. The apparatus for rapid cooling of high-temperature steel samples according to claim 2, characterized in that, There are two compatible workstations (201) and one racket workstation (202), with the racket workstation (202) located between the two compatible workstations (201).

7. The apparatus for rapid cooling of high-temperature steel samples according to claim 5, characterized in that, The linear module (3) includes an electric telescopic rod (301) fixedly installed on the mounting platform (6). An L-shaped support arm (302) is fixedly installed at the bottom end of the electric telescopic rod (301), and the workstation (2) is fixedly installed on the horizontal section of the support arm (302).

8. The apparatus for rapid cooling of high-temperature steel samples according to claim 5, characterized in that, The guide (7) is a conical cylinder, and the top opening diameter of the guide (7) is larger than the bottom opening diameter; the axis of the guide (7) coincides with the axis of the annular baffle (4).

9. The apparatus for rapid cooling of high-temperature steel samples according to claim 5, characterized in that, Photoelectric sensors (8) are fixedly installed on the mounting platform (6) at the position corresponding to the work station (2). The photoelectric sensors (8) are used to detect whether the sample is placed in place.

10. The apparatus for rapid cooling of high-temperature steel samples according to claim 1, characterized in that, A circulation pump is installed in the coolant tank (1).

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