A continuous hardness detection device for magnesium carbon brick production

Abstract

The utility model relates to fire -resistant material performance detection technical field discloses a kind of hardness detection device of continuous type of succession for magnesia carbon brick production, including bottom plate, the detection platform of fixed connection in the bottom plate upper end, fixed connection has vertical board in the detection platform upper end, and guiding mechanism is arranged in vertical board, and the detection platform upper end is equipped with two left and right symmetrical detection stations, each detection station includes the horizontal movement mechanism of being set in the detection platform upper end, the moving plate of being set in guiding mechanism, screw rod lifting mechanism and the limiting frame of being set in screw rod lifting mechanism are set on moving plate;Detection groove is opened in the detection platform upper end, and the inner wall of detection groove both ends is fixedly connected with partition, and the controller is set in the detection platform upper end;The four side walls of limiting frame are all through and opened with multiple second slot bodies.The utility model has the advantages of being able to simulate different corrosion environment, realize continuous succession type automatic detection, detection efficiency is high and the result is accurate.

Description

Technical Field

[0001] This utility model relates to the field of refractory material performance testing technology, specifically a continuous hardness testing device for magnesia-carbon brick production. Background Technology

[0002] Magnesia-carbon bricks, as an important alkaline refractory material, are widely used in the lining of high-temperature metallurgical equipment such as steelmaking converters, electric furnaces, and ladles due to their excellent resistance to slag erosion and thermal shock stability. In actual service, magnesia-carbon bricks not only withstand the high-temperature erosion and chemical corrosion of molten steel and slag, but also face enormous mechanical stress. Their high-temperature strength and hardness are key indicators that determine their service life. Therefore, in the production process of magnesia-carbon bricks, hardness testing of the finished products, especially simulating their performance changes under complex working conditions, is of great significance for product quality control and process improvement.

[0003] In existing technologies, most testing equipment can only perform static measurements of the original hardness of bricks under normal temperature and pressure, and cannot simulate the acid and alkali slag corrosion environment faced by magnesia-carbon bricks in actual use. Even if some testing methods can simulate the environment, it is often necessary to transfer the bricks between different devices, perform corrosion treatment first, and then transfer them to the hardness tester for testing. This process is not only cumbersome and inefficient, but the bricks are also easily affected by human factors during the transfer process, which can lead to changes in the testing environment and affect the accuracy and consistency of the test results. In addition, existing testing devices can usually only perform single-condition treatment and testing on a single brick, and cannot achieve continuous and successive testing under different corrosion conditions, making it difficult to meet the needs of mass production and diversified testing. Utility Model Content

[0004] The purpose of this invention is to provide a continuous hardness testing device for the production of magnesia-carbon bricks, which has the advantages of simulating different corrosion environments, realizing continuous automatic testing, high testing efficiency and accurate results, and solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A continuous hardness testing device for magnesia-carbon brick production includes a base plate, a testing platform fixed to the upper part of the base plate, a vertical plate fixed to the upper part of the testing platform, a guide mechanism on the vertical plate, and two symmetrical testing stations on the upper part of the testing platform. Each testing station includes a transverse moving mechanism on the upper part of the testing platform, a moving plate on the guide mechanism, a screw lifting mechanism on the moving plate, and a limiting frame on the screw lifting mechanism.

[0007] The testing platform has a testing slot at the top, and partition plates are fixed to the inner walls at both ends of the testing slot. A controller is installed at the top of the testing platform.

[0008] The four side walls of the limiting frame are each provided with multiple second slots, and the limiting frame is provided with a limiting mechanism.

[0009] The upper part of the testing platform is equipped with two pressure testing mechanisms, and the testing tank is equipped with a first drainage mechanism and a second drainage mechanism.

[0010] The bottom surface of the inner wall of the testing tank is fixed with a first support platform and a second support platform, which are symmetrical about the partition plate.

[0011] Preferably, the lateral movement mechanism includes a vertical block fixed to the upper end of the testing platform, a first cylinder fixed to the vertical block, and a connecting block fixed to the output shaft of the first cylinder, wherein the side wall of the connecting block and the side wall of the moving plate are fixed to each other.

[0012] It is worth noting that by using the first cylinder as the power source for the lateral movement mechanism, the moving plate and all its components can be driven to move precisely and smoothly back and forth in the horizontal direction. This design enables the testing device to automatically transport magnesia-carbon bricks from the material feeding position to below the pressure testing mechanism, achieving automated connection of the testing process.

[0013] Preferably, the guiding mechanism includes a first guide rail fixed to one end of the upright plate and a first slider slidably disposed on the side wall of the first guide rail, wherein the end of the first slider away from the upright plate is fixed to the end of the movable plate close to the upright plate.

[0014] It is worth noting that the guiding mechanism adopts a combination of a first guide rail and a first slider, providing high-precision guidance and support for the lateral movement of the moving plate. When the lateral movement mechanism drives the moving plate, the linear sliding of the first slider along the first guide rail can effectively constrain the movement trajectory of the moving plate, preventing it from deviating or shaking during movement, thereby ensuring that the limiting frame fixed on the moving plate can reach the preset position smoothly and accurately.

[0015] Preferably, the screw lifting mechanism includes a horizontal block fixed to the end of the moving plate away from the vertical plate, a second guide rail fixed to the horizontal block, a second slider slidably disposed on the side wall of the second guide rail, an L-shaped block fixed to the second slider, a plurality of first grooves penetrating the lower end of the L-shaped block, a motor fixed to the moving plate, two bearing seats fixed to the end of the moving plate away from the vertical plate, a screw body rotatably mounted on the inner wall of the two bearing seats, and a screw nut threadedly mounted on the outer peripheral wall of the screw body. The output shaft of the motor is fixedly connected to the upper end of the screw body through a coupling. The side wall of the screw nut and the end of the L-shaped block near the moving plate are fixedly connected to each other. The limiting frame is fixedly connected to the upper end of the L-shaped block.

[0016] It is worth noting that the screw lifting mechanism is driven by a motor to rotate the screw, which in turn drives the screw nut and the L-shaped block to move vertically up and down along the second guide rail. The screw drive method has the advantages of large transmission ratio, smooth movement and high positioning accuracy. It can accurately control the rising and falling height of the limit frame, so that it can adapt to magnesia-carbon bricks of different thicknesses. After the test is completed, the brick is placed stably on the first or second support platform. At the same time, the cooperation of the second guide rail and the second slider provides reliable guidance for the lifting and lowering of the L-shaped block, preventing it from deflecting and ensuring the accuracy of the limit frame when docking with the test platform.

[0017] Preferably, the pressure testing mechanism includes a support block fixed to the upper end of the testing platform, a second cylinder fixed to the upper end of the support block, a pressure head fixed to the lower end of the output shaft of the second cylinder, and a camera fixed to the lower end of the support block.

[0018] It is worth noting that the pressure testing mechanism integrates the second cylinder, the pressure head, and the camera into one unit. The second cylinder, as the actuating element, can provide stable and controllable downward pressure to the pressure head for hardness testing of magnesia-carbon bricks. The camera can capture images of the brick's placement and position before the pressure head is pressed down, and transmit the data to the controller in real time for analysis and judgment.

[0019] Preferably, the first drainage mechanism and the second drainage mechanism are symmetrical about the partition plate. The first drainage mechanism includes a first outlet pipe that is disposed through one end of the detection table and a first valve body disposed on the first outlet pipe. The second drainage mechanism includes a second outlet pipe that is disposed through one end of the detection table and a second valve body disposed on the second outlet pipe.

[0020] It is worth noting that the symmetrically arranged first and second drainage mechanisms correspond to two areas separated by partition plates within the testing tank, enabling independent discharge of the liquid after testing. This design allows the corresponding valve (first or second valve) to be opened at any time during continuous testing, once one area is being tested or the liquid has been used up, to discharge the waste liquid through the outlet pipe (first or second outlet pipe) without affecting the normal operation of the other area. This avoids interrupting the overall testing process due to liquid discharge and effectively improves the operating efficiency and ease of operation of the equipment.

[0021] Preferably, the limiting mechanism includes an internally threaded cylinder that is fixedly connected to one side of the limiting frame, a bolt threaded onto the inner wall of the internally threaded cylinder, and a hemisphere fixed to the end of the bolt near the center of the limiting frame.

[0022] It is worth noting that the limiting mechanism moves the hemisphere forward or backward within the internal threaded cylinder by rotating the bolt. The spherical design of the hemisphere provides effective limiting and slight clamping when in contact with the magnesia-carbon brick, while also preventing damage to the brick surface caused by sharp edges. Operators can flexibly adjust the gap or clamping force between the hemisphere and the brick according to the actual size of the magnesia-carbon brick to be tested by rotating the bolt, achieving adaptive positioning for bricks of different specifications. The manual fine-tuning mechanism is simple in structure, easy to operate, and inexpensive, effectively preventing the brick from shifting during movement and ensuring the stability of the test.

[0023] Preferably, the limiting mechanism includes partition blocks fixed to the inner walls at both ends of the limiting frame and a plurality of third grooves extending through one side of the partition blocks.

[0024] It is worth noting that the dividing block initially divides the internal space of the limiting frame, and together with multiple third grooves, forms multiple independent placement areas, enabling the limiting frame to simultaneously accommodate and initially separate multiple magnesia-carbon brick samples. The third grooves not only play a role in weight reduction and ventilation, but also facilitate observation of the brick placement from the side, improving the space utilization and detection efficiency of the device.

[0025] Preferably, the limiting mechanism further includes a U-shaped block placed on the upper end of the partition block, with multiple fourth grooves extending through both sides of the U-shaped block, and the inner walls of both sides of the U-shaped block fitting against the two sides of the partition block.

[0026] It is worth noting that the U-shaped block, as a detachable additional limiting component, is used in conjunction with the partition block to further refine the spatial division within the limiting frame. The inner wall of the U-shaped block fits against the side of the partition block, ensuring its installation stability. The fourth groove on both sides corresponds to the third groove on the partition block, together forming a smaller and more precise independent limiting grid. This modular design allows the limiting mechanism to flexibly adapt to magnesia-carbon bricks with greater size differences in different batches. Operators can choose whether to place the U-shaped block or replace it with a different specification U-shaped block according to the actual size of the brick, greatly enhancing the versatility and adaptability of the device.

[0027] Preferably, a horizontal plate is fixed to the lower part of both sides of the U-shaped block, the lower end of the horizontal plate is flush with the lower end of the U-shaped block, and the lower end of the horizontal plate is attached to the upper end of the L-shaped block.

[0028] It is worth noting that the design of the horizontal plate plays a crucial supporting and positioning role. When the U-shaped block is placed on the separator, the lower end of the horizontal plate fits against the upper end of the L-shaped block. This allows the U-shaped block to be positioned not only by its lateral fit with the separator but also by the vertical support from the L-shaped block, significantly improving the load-bearing capacity and stability of the U-shaped block. When the screw lifting mechanism drives the limit frame to move as a whole, this multi-point support structure can effectively prevent the U-shaped block from loosening or shifting, ensuring that the magnesia-carbon bricks inside are always in the defined and accurate position, thereby guaranteeing the reliability and accuracy of the entire continuous detection process.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. This utility model forms two independent corrosion environment simulation areas in the detection tank by setting up a detection tank, a partition plate, a first support platform and a second support platform. In use, acid and alkali slag simulation liquids of different compositions or concentrations can be injected into the two areas respectively, so as to realistically simulate the service conditions of magnesia-carbon bricks under different working conditions. Through the coordinated action of the lateral moving mechanism and the screw lifting mechanism, the limiting frame can accurately transport the magnesia-carbon bricks to the first support platform or the second support platform for immersion corrosion treatment, which solves the problems of existing technologies being unable to simulate the actual slag erosion environment and having single detection conditions.

[0031] 2. This utility model achieves automated, sequential transfer of magnesia-carbon bricks by setting up two lateral moving mechanisms, a guiding mechanism, and a screw lifting mechanism. In specific operation, one lateral moving mechanism drives a limiting frame to place a batch of bricks into one side of the detection area for corrosion treatment, while the other side of the detection area can perform hardness testing on the corroded bricks. After the test is completed, the screw lifting mechanism lifts the bricks, the lateral moving mechanism moves them out, and the next batch of bricks is transferred. The entire process requires no manual intervention, achieving seamless connection between corrosion treatment and hardness testing. This effectively avoids changes in the detection environment caused by human factors during the transfer of bricks, significantly improving detection efficiency and the accuracy of results.

[0032] 3. This utility model significantly improves the reliability and adaptability of the detection by integrating a camera into the pressure detection mechanism and setting multiple limiting mechanisms on the limiting frame. The camera can capture images of the bricks in real time before the pressure head is pressed down and transmit them to the controller to automatically determine the placement status of the bricks, avoiding false detections caused by positional deviations. The limiting mechanism uses partition blocks, U-shaped blocks, or adjustable bolts to stably clamp magnesia-carbon bricks of different specifications, preventing them from shifting during the transfer process. At the same time, the symmetrically arranged first and second drainage mechanisms can achieve independent discharge of waste liquid from the two detection areas, ensuring that the continuous detection process is not interrupted and further improving the operating efficiency of the equipment. Attached Figure Description

[0033] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0034] Figure 2 The diagram shown is a three-dimensional structural schematic of the lateral movement mechanism and the guiding mechanism of this utility model.

[0035] Figure 3 The diagram shown is a three-dimensional structural schematic of the screw lifting mechanism of this utility model.

[0036] Figure 4 The diagram shown is a three-dimensional structural schematic of the pressure detection mechanism of this utility model.

[0037] Figure 5 The diagram shown is a three-dimensional structural schematic of the first embodiment of the limiting mechanism of this utility model;

[0038] Figure 6 The diagram shown is a three-dimensional disassembled structural schematic of the second embodiment of the limiting mechanism of this utility model;

[0039] Figure 7 The diagram shown is a three-dimensional structural schematic of the third embodiment of the limiting mechanism of this utility model.

[0040] Reference numerals: 1. Base plate; 2. Testing table; 3. Lateral movement mechanism; 301. Vertical block; 302. First cylinder; 303. Connecting block; 4. Vertical plate; 5. Guide mechanism; 501. First guide rail; 502. First slider; 6. Moving plate; 7. Screw lifting mechanism; 701. Horizontal block; 702. Second guide rail; 703. Second slider; 704. L-shaped block; 705. First groove; 706. Motor; 707. Bearing seat; 708. Screw body; 709. Screw nut; 8. Pressure detection mechanism 801, Support block; 802, Second cylinder; 803, Pressure head; 804, Camera; 9, Detection groove; 10, Divider plate; 11, First support platform; 12, Second support platform; 13, First outlet pipe; 14, First valve body; 15, Second outlet pipe; 16, Second valve body; 17, Controller; 18, Limit frame; 181, Second groove; 19, Internal threaded cylinder; 20, Bolt; 21, Hemisphere; 22, Divider block; 23, Third groove; 24, U-shaped block; 25, Fourth groove; 26, Horizontal plate. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] To address the shortcomings of existing technologies, such as their inability to simulate the acid-alkali slag corrosion environment under actual working conditions, cumbersome detection processes, and inability to achieve continuous, alternating detection, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-7 ;

[0043] A continuous hardness testing device for magnesia-carbon brick production includes a base plate 1, a testing platform 2 fixed to the upper end of the base plate 1, a vertical plate 4 fixed to the upper end of the testing platform 2, a guide mechanism 5 provided on the vertical plate 4, and two symmetrical testing stations on the upper end of the testing platform 2. Each testing station includes a transverse moving mechanism 3 provided on the upper end of the testing platform 2, a moving plate 6 provided on the guide mechanism 5, a screw lifting mechanism 7 provided on the moving plate 6, and a limiting frame 18 provided on the screw lifting mechanism 7.

[0044] The upper end of the testing table 2 is provided with a testing groove 9, and the inner walls of both ends of the testing groove 9 are fixed with partition plates 10. The upper end of the testing table 2 is provided with a controller 17.

[0045] The four side walls of the limiting frame 18 are provided with multiple second grooves 181, and the limiting frame 18 is provided with a limiting mechanism.

[0046] The upper end of the testing platform 2 is equipped with two pressure testing mechanisms 8, and the testing tank 9 is equipped with a first drainage mechanism and a second drainage mechanism.

[0047] The bottom surface of the inner wall of the detection tank 9 is fixed with a first support platform 11 and a second support platform 12, which are symmetrical about the partition plate 10.

[0048] In use, the brick is manually or with the help of an external robotic arm to clamp and place it in the limiting frame 18, and the limiting mechanism is used to limit the brick. Then, the lateral movement mechanism 3 and the screw lifting mechanism 7 are activated to adjust the position of the limiting frame 18. Acid or alkali solution is injected into the detection tank 9. The partition plate 10 divides the detection tank 9 into two areas. Acid solution can be injected into one area and alkali solution into the other area. After soaking for a period of time, the lateral movement mechanism 3 and the screw lifting mechanism 7 are activated again to move the screw lifting mechanism 7 to the upper end of the first support platform 11 or the second support platform 12. Then, the pressure detection mechanism 8 is activated to press down on the brick that is limited by the limiting mechanism to detect the hardness of the brick at this time.

[0049] In this embodiment, specifically: the lateral moving mechanism 3 includes a block 301 fixed to the upper end of the detection table 2, a first cylinder 302 fixed to the block 301, and a connecting block 303 fixed to the output shaft of the first cylinder 302. The side wall of the connecting block 303 and the side wall of the moving plate 6 are fixed to each other.

[0050] In this embodiment, specifically: the guiding mechanism 5 includes a first guide rail 501 fixed to one end of the upright plate 4 and a first slider 502 slidably disposed on the side wall of the first guide rail 501. The end of the first slider 502 away from the upright plate 4 is fixed to the end of the moving plate 6 close to the upright plate 4.

[0051] In this embodiment, specifically: the lead screw lifting mechanism 7 includes a horizontal block 701 fixed to the end of the moving plate 6 away from the vertical plate 4, a second guide rail 702 fixed to the horizontal block 701, a second slider 703 slidably disposed on the side wall of the second guide rail 702, an L-shaped block 704 fixed to the second slider 703, a plurality of first grooves 705 penetrating the lower end of the L-shaped block 704, a motor 706 fixed to the moving plate 6, two bearing seats 707 fixed to the end of the moving plate 6 away from the vertical plate 4, a lead screw body 708 rotatably mounted on the inner wall of the two bearing seats 707, and a lead screw nut 709 threadedly mounted on the outer peripheral wall of the lead screw body 708. The output shaft of the motor 706 is fixedly connected to the upper end of the lead screw body 708 through a coupling. The side wall of the lead screw nut 709 and the end of the L-shaped block 704 near the moving plate 6 are fixedly connected to each other. The limiting frame 18 is fixedly connected to the upper end of the L-shaped block 704.

[0052] In this embodiment, specifically: the pressure detection mechanism 8 includes a support block 801 fixed to the upper end of the detection platform 2, a second cylinder 802 fixed to the upper end of the support block 801, a pressure head 803 fixed to the lower end of the output shaft of the second cylinder 802, and a camera 804 fixed to the lower end of the support block 801.

[0053] In this embodiment, specifically: the first drainage mechanism and the second drainage mechanism are symmetrical about the partition plate 10. The first drainage mechanism includes a first outlet pipe 13 that is disposed through one end of the detection platform 2 and a first valve body 14 disposed on the first outlet pipe 13. The second drainage mechanism includes a second outlet pipe 15 that is disposed through one end of the detection platform 2 and a second valve body 16 disposed on the second outlet pipe 15.

[0054] Example 1: In this example, the limiting mechanism specifically includes an internally threaded cylinder 19 fixedly connected to one side of the limiting frame 18, a bolt 20 threaded onto the inner wall of the internally threaded cylinder 19, and a hemisphere 21 fixed to one end of the bolt 20 near the center of the limiting frame 18. This limiting mechanism moves the hemisphere 21 by rotating the bolt 20, causing it to move forward or backward within the internally threaded cylinder 19. The spherical design of the hemisphere 21 provides effective limiting and slight clamping when in contact with the magnesia-carbon brick, while also preventing damage to the brick surface due to sharp edges. The operator can flexibly adjust the gap or clamping force between the hemisphere 21 and the brick by rotating the bolt 20 according to the actual size of the magnesia-carbon brick to be tested, achieving adaptive positioning for bricks of different specifications. The manual fine-tuning mechanism is simple in structure, easy to operate, and inexpensive, effectively preventing the brick from shifting during movement and ensuring the stability of the test.

[0055] Example 2: In this example, the limiting mechanism specifically includes partition blocks 22 fixed to the inner walls of both ends of the limiting frame 18 and multiple third grooves 23 extending through one side of the partition blocks 22. The partition blocks 22 initially divide the internal space of the limiting frame 18, and together with the multiple third grooves 23, form multiple independent placement areas, allowing the limiting frame 18 to simultaneously accommodate and initially separate multiple magnesia-carbon brick samples. The third grooves 23 facilitate the contact of acid or alkali solutions with the bricks.

[0056] In this embodiment, specifically: the limiting mechanism also includes a U-shaped block 24 placed on the upper end of the partition block 22. Multiple fourth grooves 25 are provided through both sides of the U-shaped block 24. The inner walls of both sides of the U-shaped block 24 are in contact with the two sides of the partition block 22. The U-shaped block 24, as a detachable additional limiting component, works in conjunction with the partition block 22 to further refine the spatial division within the limiting frame 18. The inner wall of the U-shaped block 24 is in contact with the sides of the partition block 22, ensuring its installation stability. The fourth grooves 25 on both sides correspond to the third grooves 23 on the partition block 22, facilitating the passage of acid or alkali solutions.

[0057] Example 3: Based on Example 2, in this example, specifically: a horizontal plate 26 is fixed to the lower part of both sides of the U-shaped block 24, the lower end surface of the horizontal plate 26 is flush with the lower end surface of the U-shaped block 24, and the lower end surface of the horizontal plate 26 is attached to the upper end of the L-shaped block 704. The design of the horizontal plate 26 plays a crucial supporting and positioning role. When the U-shaped block 24 is placed on the partition block 22, the lower end face of the horizontal plate 26 fits against the upper end face of the L-shaped block 704. This allows the U-shaped block 24 to not only be positioned by its lateral fit with the partition block 22, but also to receive vertical support from the L-shaped block 704, significantly improving the load-bearing capacity and stability of the U-shaped block 24. When the screw lifting mechanism 7 drives the limit frame 18 to move as a whole, this multi-point support structure can effectively prevent the U-shaped block 24 from loosening or shifting, ensuring that the magnesia-carbon bricks inside are always in the accurately defined position. In addition, it is convenient to manually or quickly lift and remove the bricks located at the upper end of the horizontal plate 26 using the U-shaped block 24.

[0058] It should be noted that the two moving plates 6 slide independently on the same guide rail of the guide mechanism 5. The controller 17 ensures that the movement ranges of the two are staggered through programming logic, or sets limit switches to prevent collisions. At the same time, the length of the guide rail must meet the travel requirements of the two workstations.

[0059] Working principle: First, the operator manually or with the help of an external robotic arm clamps the magnesia-carbon brick to be tested and places it in the limiting frame 18. The corresponding limiting mechanism is selected according to the specifications of the brick to limit and fix it to prevent it from moving during the subsequent transfer process.

[0060] Specifically, if the limiting mechanism described in Embodiment 1 is used, the bolt 20 is manually rotated to push the bolt 20 into the internal threaded cylinder 19, which drives the hemisphere 21 to move toward the brick until the spherical surface of the hemisphere 21 gently contacts the side wall of the brick, thereby achieving precise limiting of a single brick.

[0061] If the limiting mechanism described in Embodiment 2 is used, multiple magnesia-carbon bricks are placed in independent spaces separated by the partition block 22, and the sides of the bricks are aligned with the third tank 23 to facilitate liquid flow during subsequent soaking. In addition, a U-shaped block 24 can be placed on the upper end of the partition block 22, so that the inner walls of the two sides of the U-shaped block 24 are in contact with the two sides of the partition block 22, and the magnesia-carbon bricks are placed in a smaller limiting grid formed by the U-shaped block 24 and the partition block 22.

[0062] If the limiting mechanism described in Embodiment 3 is used, since the lower part of both sides of the U-shaped block 24 is fixed with the horizontal plate 26, the lower end surface of the horizontal plate 26 is in contact with the upper end surface of the L-shaped block 704 to obtain stable support in the vertical direction. This structure also makes it convenient to lift the brick located on the upper end surface of the horizontal plate 26 by lifting the U-shaped block 24.

[0063] Next, the first cylinder 302 in the transverse moving mechanism 3 is activated by the controller 17. The output shaft of the first cylinder 302 drives the moving plate 6 to move horizontally through the connecting block 303. At the same time, the first slider 502 in the guide mechanism 5 slides along the first guide rail 501 to provide precise guidance for the movement of the moving plate 6, thereby moving the limiting frame 18 and the magnesium carbon brick inside it to the top of the detection groove 9.

[0064] Subsequently, the motor 706 in the screw lifting mechanism 7 is started. The motor 706 drives the screw body 708 to rotate in the bearing seat 707 through the coupling. This causes the screw nut 709, which is threaded onto the outer peripheral wall of the screw body 708, to drive the L-shaped block 704 to move downward along the second guide rail 702. The multiple first grooves 705 at the lower end of the L-shaped block 704 help to reduce weight and maintain structural strength. They also facilitate the contact of acid or alkali solution with the brick through the first grooves 705. The L-shaped block 704 drives the limiting frame 18 to descend until the magnesia-carbon brick is completely immersed in the acid or alkali solution injected into one of the areas separated by the partition plate 10 in the test tank 9, to simulate a corrosive environment.

[0065] After soaking for a period of time, the motor 706 is restarted, and the limiting frame 18 and the magnesia-carbon bricks inside are lifted together by the screw lifting mechanism 7, detaching them from the liquid surface. Then, the lateral moving mechanism 3 is activated to precisely move the limiting frame 18 to directly above the first support platform 11 or the second support platform 12 corresponding to this workstation.

[0066] Next, the motor 706 is restarted, driving the screw lifting mechanism 7 to slowly lower the limiting frame 18. After the bottom surface of the magnesia-carbon brick contacts the upper surface of the support platform, the screw lifting mechanism 7 is further controlled to descend by a small, preset stroke. At this time, due to the support of the support platform, the magnesia-carbon brick remains stationary, while the limiting frame 18 continues to move downward relative to the brick, so that the four sides of the brick are completely exposed from the side wall constraint of the limiting frame 18, that is, the brick is smoothly separated from the limiting frame 18. At this time, the magnesia-carbon brick is placed independently and stably on the support platform.

[0067] Finally, the pressure detection mechanism 8 above the workstation is activated. The second cylinder 802 drives the pressure head 803 to apply pressure downward to the magnesia-carbon brick for hardness detection. At the same time, the camera 804 collects images in real time and transmits them to the controller 17 to ensure the accuracy of the detection position.

[0068] After the test is completed, the waste liquid in the test tank 9 is discharged through the first outlet pipe 13 or the second outlet pipe 15 by opening the first valve body 14 or the second valve body 16 corresponding to the test area, so that the next round of test can be carried out.

[0069] The two inspection stations can work independently. For example, the limiting frame 18 of the first station places the brick into the area of ​​the first bearing platform 11 for corrosion treatment, while the limiting frame 18 of the second station can perform the feeding operation, thereby realizing continuous operation in succession. The controller 17 coordinates the movement of the two stations to avoid interference.

[0070] 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.

[0071] Although embodiments of the present 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 present invention.

Claims

1. A continuous hardness testing device for magnesia-carbon brick production, comprising a base plate (1) and a testing platform (2) fixed to the upper end of the base plate (1), characterized in that: The upper end of the testing table (2) is fixed with a vertical plate (4), and a guide mechanism (5) is provided on the vertical plate (4). The upper end of the testing table (2) is provided with two left-right symmetrical testing stations. Each testing station includes a horizontal moving mechanism (3) provided on the upper end of the testing table (2), a moving plate (6) provided on the guide mechanism (5), a screw lifting mechanism (7) provided on the moving plate (6), and a limiting frame (18) provided on the screw lifting mechanism (7). The upper end of the testing table (2) is provided with a testing groove (9), and the inner walls of both ends of the testing groove (9) are fixed with partition plates (10). The upper end of the testing table (2) is provided with a controller (17). The four side walls of the limiting frame (18) are provided with multiple second grooves (181), and the limiting frame (18) is provided with a limiting mechanism; The upper end of the testing platform (2) is equipped with two pressure testing mechanisms (8), and the testing tank (9) is equipped with a first drainage mechanism and a second drainage mechanism; The bottom surface of the inner wall of the detection tank (9) is fixed with a first support platform (11) and a second support platform (12). The first support platform (11) and the second support platform (12) are symmetrical about the partition plate (10).

2. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The lateral movement mechanism (3) includes a vertical block (301) fixed to the upper end of the testing table (2), a first cylinder (302) fixed to the vertical block (301), and a connecting block (303) fixed to the output shaft of the first cylinder (302). The side wall of the connecting block (303) and the side wall of the moving plate (6) are fixed to each other.

3. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The guiding mechanism (5) includes a first guide rail (501) fixed to one end of the upright plate (4) and a first slider (502) slidably disposed on the side wall of the first guide rail (501). The end of the first slider (502) away from the upright plate (4) is fixed to the end of the movable plate (6) close to the upright plate (4).

4. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The screw lifting mechanism (7) includes a horizontal block (701) fixed to one end of the movable plate (6) away from the vertical plate (4), a second guide rail (702) fixed to the horizontal block (701), a second slider (703) slidably disposed on the side wall of the second guide rail (702), an L-shaped block (704) fixed to the second slider (703), a plurality of first grooves (705) penetrating the lower end of the L-shaped block (704), a motor (706) fixed to the movable plate (6), and a screw lifting mechanism (705) fixed to the side wall of the movable plate (6). Two bearing seats (707) at one end of the vertical plate (4), a lead screw body (708) rotatably mounted on the inner wall of the two bearing seats (707), and a lead screw nut (709) threaded on the outer peripheral wall of the lead screw body (708). The output shaft of the motor (706) is fixedly connected to the upper end of the lead screw body (708) through a coupling. The side wall of the lead screw nut (709) and the end of the L-shaped block (704) near the moving plate (6) are fixedly connected to each other. The limiting frame (18) is fixedly connected to the upper end of the L-shaped block (704).

5. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The pressure testing mechanism (8) includes a support block (801) fixed to the upper end of the testing platform (2), a second cylinder (802) fixed to the upper end of the support block (801), a pressure head (803) fixed to the lower end of the output shaft of the second cylinder (802), and a camera (804) fixed to the lower end of the support block (801).

6. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The first and second drainage mechanisms are symmetrical about the partition plate (10). The first drainage mechanism includes a first outlet pipe (13) that is disposed through one end of the detection platform (2) and a first valve body (14) disposed on the first outlet pipe (13). The second drainage mechanism includes a second outlet pipe (15) that is disposed through one end of the detection platform (2) and a second valve body (16) disposed on the second outlet pipe (15).

7. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The limiting mechanism includes an internally threaded cylinder (19) that is fixed to one side of the limiting frame (18), a bolt (20) that is threaded onto the inner wall of the internally threaded cylinder (19), and a hemisphere (21) that is fixed to one end of the bolt (20) near the center of the limiting frame (18).

8. The continuous hardness testing device for magnesia-carbon brick production according to claim 1, characterized in that: The limiting mechanism includes a partition block (22) fixed to the inner walls of both ends of the limiting frame (18) and a plurality of third grooves (23) that are opened through one side of the partition block (22).

9. A continuous hardness testing device for magnesia-carbon brick production according to claim 8, characterized in that: The limiting mechanism also includes a U-shaped block (24) placed on the upper end of the partition block (22). Multiple fourth grooves (25) are opened through both sides of the U-shaped block (24). The inner walls of both sides of the U-shaped block (24) are in contact with the two sides of the partition block (22).

10. A continuous hardness testing device for magnesia-carbon brick production according to claim 9, characterized in that: A horizontal plate (26) is fixed to the lower part of both sides of the U-shaped block (24). The lower end of the horizontal plate (26) is flush with the lower end of the U-shaped block (24), and the lower end of the horizontal plate (26) is attached to the upper end of the L-shaped block (704).

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