Magnesia carbon brick performance test bench

Abstract

The utility model discloses a magnesia carbon brick performance test bench, which is characterized in that a magnesia carbon brick is a magnesia carbon brick body; comprising a first testing box, a second fixing block arranged above the first testing box, moving mechanisms fixedly connected to the two sides of the second fixing block, a lifting mechanism fixedly connected to the upper end of the second fixing block, a bearing mechanism fixedly connected to the lifting end of the lifting mechanism and a magnesia carbon brick body placed in the bearing mechanism. The acid-alkali liquid soaking mechanism is arranged outside the first testing box, the pressure mechanism is arranged on the side wall of the acid-alkali liquid soaking mechanism, and a camera is fixedly connected to the side wall of the second fixing block. The utility model has the advantages of integration and high efficiency.

Description

Technical Field

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

[0002] Magnesia-carbon bricks are widely used in key parts of the iron and steel metallurgical industry, such as electric furnaces, converters, and refining furnaces, due to their excellent high temperature resistance, slag corrosion resistance, and thermal shock resistance. In actual service, magnesia-carbon bricks not only endure drastic temperature changes, but also come into long-term contact with various acid and alkali slags and bear structural stress. Therefore, their thermal shock resistance (resistance to rapid heating and cooling), corrosion resistance, and residual strength after high temperature or corrosion are the core indicators for evaluating their performance and determining their service life.

[0003] Currently, the aforementioned performance tests for magnesia-carbon bricks typically require separate testing on different specialized equipment. For example, thermal shock resistance testing requires a heating furnace and drop impact device; acid and alkali corrosion resistance testing requires an immersion container; and strength testing requires a separate pressure testing machine. This decentralized testing approach has significant shortcomings: First, the testing process is cumbersome, requiring samples to be transferred and repeatedly clamped between multiple devices, resulting in low efficiency and the potential for additional damage or errors due to operational errors. Second, it cannot efficiently simulate and coherently evaluate the performance evolution of magnesia-carbon bricks under the coupled effects of thermal shock, corrosion, and stress in actual working conditions. The data from each individual test are fragmented, making it difficult to form a systematic evaluation of the product's overall performance, and thus requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a magnesia-carbon brick performance testing platform, which has the advantages of integration and high efficiency, and solves the problems in the prior art.

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

[0006] A performance testing platform for magnesia-carbon bricks, wherein the magnesia-carbon bricks are magnesia-carbon brick bodies, includes a first test box, a second fixed block disposed above the first test box, a moving mechanism fixed to both sides of the second fixed block, a lifting mechanism fixed to the upper end of the second fixed block, a bearing mechanism fixed to the lifting end of the lifting mechanism, a magnesia-carbon brick body placed inside the bearing mechanism, an acid and alkali immersion mechanism disposed outside the first test box, and a pressure mechanism disposed on the side wall of the acid and alkali immersion mechanism, wherein a camera is fixed to the side wall of the second fixed block;

[0007] The first test chamber is equipped with an impact height adjustment mechanism;

[0008] The upper end of the second fixed block is provided with a first groove, the first groove is provided with a heating mechanism, the first groove is also provided with a guide mechanism, and the lower end of the first groove is provided with a pushing mechanism.

[0009] After the magnesia-carbon brick moves downward along the guide mechanism, the pushing mechanism is used to push the magnesia-carbon brick off the guide mechanism so that the magnesia-carbon brick falls under the action of gravity.

[0010] Preferably, the moving mechanism includes a fixed frame fixed to both sides of the second fixed block, a bearing block fixed to the lower end of the fixed frame, and a roller fixed to the lower end of the bearing block. Limiting mechanisms are provided on both sides of the first test box. The limiting mechanisms include two guide rails, and the ends of the two guide rails that are close to each other are respectively attached to the two sides of the roller.

[0011] It is worth noting that the cooperation between the moving mechanism and the guide rails enables the second fixed block, which integrates heating and guiding functions, to be precisely positioned and moved horizontally above the first test box. The limiting structure of the rollers and the double-sided guide rails ensures the smoothness and accuracy of the movement process, avoiding accidental slippage or positional deviation of the sample due to shaking, and improving the flexibility and operational efficiency of the test platform.

[0012] Preferably, the lifting mechanism includes a bracket fixed to the upper end of the second fixed block, a first cylinder fixed to the bracket, and a lifting block fixed to the lower end of the first cylinder.

[0013] It is worth noting that the lifting mechanism, driven by a cylinder, achieves precise vertical lifting of the bearing mechanism and the magnesia-carbon bricks on it. It can smoothly lower the sample to the heating area of ​​the second fixed block for uniform heating. After heating, it can control the sample to continue to descend, so that it accurately enters the guide mechanism below, preparing for subsequent free fall release. The entire lifting process is powerful and precisely controlled, replacing the cumbersome manual handling and positioning steps in traditional testing. This not only improves the automation level of testing but also reduces errors and safety hazards caused by human intervention, ensuring the consistency of thermal shock test conditions.

[0014] Preferably, the supporting mechanism includes two columns fixed to the lower end of the lifting block and a first U-shaped block fixed to the lower end of the columns, with the magnesium carbon brick body slidably disposed on the inner wall of the two first U-shaped blocks.

[0015] It is worth noting that the two first U-shaped blocks support the magnesia-carbon brick body from both sides, providing stable support. At the same time, their open top and bottom structures ensure that there is no interference with the heating source (such as the intermediate frequency coil below) or the guide mechanism below during the lifting process, realizing reliable clamping and rapid release of the sample. During the lifting phase, it can firmly support the sample. When it is necessary to transfer the sample to the guide mechanism, it is only necessary to continue to descend. After the bottom of the sample contacts the guide slope, it can smoothly transition from the first U-shaped block to the second U-shaped block through simple relative sliding, realizing a seamless handover between the support and the guide mechanism. This design avoids complex mechanical grippers, simplifies the structure, and improves the reliability of the transfer.

[0016] Preferably, the acid and alkali immersion mechanism includes a second test chamber placed outside the first test chamber, a waste liquid drain pipe that is fixed through the lower part of the side wall of the second test chamber, and a solenoid valve disposed on the waste liquid drain pipe.

[0017] It is worth noting that the acid and alkali immersion mechanism, as an independent testing module, is compact in structure and practical in function. The second test chamber is used to hold corrosive acid and alkali solutions to assess the corrosion resistance of the magnesia-carbon bricks after thermal shock testing. The waste liquid discharge pipe, combined with the design of the solenoid valve, allows for rapid and sealed drainage of waste liquid after the test, facilitating the replacement of test solutions with different properties or cleaning, and avoiding the safety risks and environmental pollution caused by manual dumping. The module is arranged adjacent to the pressure mechanism, so that the sample can be easily removed after immersion corrosion and directly transferred to the adjacent pressure mechanism for strength testing.

[0018] Preferably, the pressure mechanism includes a support platform fixed to the side wall of the second test chamber, a support block fixed to the upper end of the support platform, a second cylinder fixed to the upper end of the support block, a pressure block fixed to the lower end of the output shaft of the second cylinder, and a tray placed on the upper end of the support platform, with the tray and the pressure block corresponding to each other in the vertical direction.

[0019] It is worth noting that the pressure mechanism is integrated into the side of the immersion mechanism and is used to test the compressive strength or residual strength of magnesia-carbon bricks (especially after thermal shock or corrosion). Its core advantage lies in the convenience of testing and the intuitiveness of the results. The support platform and the placeable tray provide a stable testing platform for the sample. The second cylinder drives the pressure block to apply controllable pressure downwards. This design tightly integrates the pressure testing function with the corrosion testing module in space. After the sample is immersed, it can be pressure tested without long-distance transportation, which maximizes the preservation of the sample's post-corrosion state and ensures the consistency and accuracy of the test data. Through the pressure control of the cylinder, the deformation of the sample under different loads or even the ultimate pressure of rupture can be accurately measured, providing key mechanical data for evaluating the comprehensive performance of magnesia-carbon bricks.

[0020] Preferably, the impact height adjustment mechanism includes a limiting groove extending through the side wall of the first test chamber, an impact plate slidably disposed on the inner wall of the first test chamber, a limiting block fixed to the side wall of the impact plate, a plurality of first fixing blocks fixed to the side wall of the first test chamber, a first screw hole extending through one side of the first fixing block, and a second screw hole extending through one side of the limiting block. A threaded post is threadedly installed on the inner wall of the first screw hole, and the threaded post passes through the first screw hole and the second screw hole and is threadedly screwed onto the inner wall of the other first screw hole.

[0021] It is worth noting that by passing the threaded column through the holes on the first fixing block and the limiting block at different heights and locking them, the impact plate can be fixed at any preset height in the first test box. By selecting the first fixing block at different positions for cooperation, multiple drop heights can be precisely set to simulate the damage caused to the magnesium carbon brick by the impact energy of different gravitational potential energy conversions. This allows for a systematic study of its thermal shock resistance and impact toughness.

[0022] Preferably, the heating mechanism includes two connecting blocks fixed to the inner wall of the first tank and a medium-frequency heating coil fixed to the two connecting blocks.

[0023] It is worth noting that medium-frequency heating can quickly heat the sample to the required high temperature (such as simulating the tapping temperature of steel), simulating the rapid heating process that magnesia-carbon bricks undergo in actual use. Compared with traditional box-type resistance furnaces, it has the advantages of fast heating speed, relatively low energy consumption, and easy precise temperature control by adjusting the power. The coil is wrapped around the sample, ensuring the uniformity of circumferential heating of the sample and avoiding test errors caused by local overheating or insufficient heating.

[0024] Preferably, the guiding mechanism includes two guide blocks fixed to the upper end of the second fixed block and extending into the interior of the second fixed block, a second U-shaped block fixed to the lower end of the two guide blocks, a second groove extending through the upper and lower ends of the second U-shaped block, and a vertical block fixed to the lower end of the second U-shaped block. The top, bottom, and side surfaces of the second U-shaped block are all U-shaped.

[0025] It is worth noting that the two guide blocks form a funnel-shaped inlet, which can effectively guide the sample falling from above to slide smoothly into the second U-shaped block below. The "U"-shaped structure of the second U-shaped block wraps around the sample from the top, bottom and sides, leaving an opening only in one horizontal direction. This ensures that the sample is firmly confined in the predetermined position during the waiting release stage, preventing it from rolling or tilting at will.

[0026] Preferably, the pushing mechanism includes a first vertical plate fixed to the lower end of the second fixed block, a first electric cylinder fixed to the first vertical plate, a first push block fixed to the output shaft of the first electric cylinder, a second vertical plate fixed to the lower end of the second fixed block, a second electric cylinder fixed to the second vertical plate, and a second push block fixed to the output shaft of the second electric cylinder. The openings of the first push block and the second U-shaped block in the horizontal direction correspond to each other. When the first push block moves in the horizontal direction, the first push block can enter the interior of the second U-shaped block. The sides of the second push block and the second U-shaped block correspond to each other.

[0027] It is worth noting that the pushing mechanism is the execution component that realizes automatic sample release and triggers free fall test. The first electric cylinder drives the first push block to extend horizontally into the opening of the second U-shaped block and push the sample out from the limited state; while the second electric cylinder drives the second push block to act on the side vertical block of the second U-shaped block, which may be used for initial loosening or auxiliary positioning, or as a backup for another release method.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] 1. By combining the moving mechanism, lifting mechanism, and bearing mechanism with the second fixed block that integrates the heating mechanism and guiding mechanism, and by setting the acid and alkali immersion mechanism and pressure mechanism adjacent to each other, this utility model constructs a highly integrated testing platform. This platform changes the traditional decentralized testing mode, enabling magnesium carbon bricks to be heated and impact tested by moving and lifting at a single station, and quickly transferred to the adjacent immersion and pressure testing station. This greatly simplifies the operation process and avoids the problems of low efficiency, easy damage and error introduction caused by repeated handling and clamping of samples between different independent devices.

[0030] 2. This utility model achieves continuous and automated testing of multiple properties of magnesia-carbon bricks, including thermal shock, mechanical impact, corrosion, and pressure, through the coordinated operation of various functional mechanisms. Specifically, the moving mechanism drives the second fixed block to be positioned; the first cylinder of the lifting mechanism drives the bearing mechanism to descend, allowing the sample to enter the heating mechanism for heating, and then continues to descend into the second U-shaped block of the guide mechanism; the first electric cylinder of the pushing mechanism drives the first pusher to push the sample out and drop it, impacting the height-adjustable impact plate. After that, the sample can be placed in the second test chamber for immersion, and then directly moved to the bearing platform where the second cylinder drives the pressure block for pressure testing. This process efficiently simulates the coupling effect under actual working conditions, making performance evaluation more systematic and data more coherent.

[0031] 3. Through the designed impact height adjustment mechanism, the impact energy is accurately and adjustable. By selecting the first fixing block at different heights and locking it with a threaded column through its first screw hole and the second screw hole of the limiting block, the position of the impact plate in the first test box can be steplessly adjusted and rigidly fixed. This makes it convenient to study the damage caused to the sample by different drop heights (impact energy) in a single test, which greatly expands the research scope and data dimensions of thermal shock resistance performance testing.

[0032] 4. Through the compact adjacent layout of the acid and alkali immersion mechanism and the pressure mechanism, as well as the design of the waste liquid discharge pipe and solenoid valve, not only is the operation safe and convenient, but more importantly, it realizes the continuity of "strength testing immediately after corrosion". The sample is tested when its state has not changed after corrosion, which ensures the authenticity and accuracy of the data on the impact of corrosion on its residual strength. It effectively solves the problem of state change caused by time delay and secondary handling in traditional methods. Attached Figure Description

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

[0034] Figure 2 The diagram shows a three-dimensional structural schematic of the moving mechanism, acid / alkali immersion mechanism, and pressure mechanism of this utility model.

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

[0036] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the lifting mechanism and heating mechanism of this utility model.

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

[0038] Figure 6 The diagram shown is a three-dimensional cross-sectional view of the guiding mechanism of this utility model.

[0039] Reference numerals: 1. First test chamber; 101. Limiting groove; 102. Impact plate; 103. Limiting block; 104. First fixing block; 105. First screw hole; 106. Second screw hole; 107. Threaded post; 2. Moving mechanism; 201. Fixing frame; 202. Bearing block; 203. Roller; 3. Second fixing block; 4. Lifting mechanism; 41. Bracket; 42. First cylinder; 43. Lifting block; 5. Bearing mechanism; 51. Column; 52. First U-shaped block; 6. Magnesia-carbon brick body; 7. Acid and alkali immersion mechanism; 71 72. Second test chamber; 73. Waste liquid drain pipe; 84. Solenoid valve; 9. Pressure mechanism; 10. Support platform; 11. Support block; 12. Second cylinder; 13. Pressure block; 14. Support plate; 15. Guide rail; 16. First tank; 17. Connecting block; 18. Medium frequency heating coil; 19. Camera; 20. First upright plate; 21. First electric cylinder; 22. First push block; 23. Second upright plate; 24. Second electric cylinder; 25. Second push block; 26. Guide block; 27. Second U-shaped block; 28. Second tank; 29. ​​Vertical block. Detailed Implementation

[0040] 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.

[0041] To address the lack of a testing platform in existing technologies that integrates heating, adjustable impact, immersion, and pressure testing, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-6 ;

[0042] A performance testing platform for magnesia-carbon bricks, wherein the magnesia-carbon bricks are magnesia-carbon brick bodies 6, includes a first test chamber 1, a second fixed block 3 disposed above the first test chamber 1, a moving mechanism 2 fixed to both sides of the second fixed block 3, a lifting mechanism 4 fixed to the upper end of the second fixed block 3, a bearing mechanism 5 fixed to the lifting end of the lifting mechanism 4, a magnesia-carbon brick body 6 placed inside the bearing mechanism 5, an acid and alkali immersion mechanism 7 disposed outside the first test chamber 1, and a pressure mechanism 8 disposed on the side wall of the acid and alkali immersion mechanism 7, and a camera 13 fixed to the side wall of the second fixed block 3;

[0043] The first test chamber 1 is equipped with an impact height adjustment mechanism;

[0044] The upper end of the second fixing block 3 is provided with a first groove 10, a heating mechanism is provided inside the first groove 10, a guide mechanism is also provided inside the first groove 10, and a pushing mechanism is provided at the lower end of the first groove 10.

[0045] After the magnesia-carbon brick 6 moves downward along the guide mechanism, the pushing mechanism is used to push the magnesia-carbon brick 6 off the guide mechanism so that the magnesia-carbon brick 6 falls under the action of gravity.

[0046] In use, adjust the impact height adjustment mechanism to a suitable height, then manually or using a mechanical claw, place the magnesia-carbon brick 6 into the bearing mechanism 5. Activate the lifting mechanism 4 to lower the bearing mechanism 5 into the second fixed block 3. Activate the heating mechanism in the second fixed block 3 to heat the magnesia-carbon brick 6. After heating, continue to activate the lifting mechanism 4 to move the magnesia-carbon brick 6 downwards along the guide mechanism. Then, activate the pushing mechanism to push the magnesia-carbon brick 6 out of the guide mechanism. Due to gravity, the magnesia-carbon brick 6 will fall onto the impact height adjustment mechanism. By observing the different heights, the damage suffered by the magnesia-carbon brick 6 at different descent heights can be determined. In addition, the magnesia-carbon brick 6 can be placed in the acid and alkali soaking mechanism 7 and then moved to the pressure mechanism 8 to observe its deformation by applying pressure.

[0047] In this embodiment, specifically: the moving mechanism 2 includes a fixed frame 201 fixed to both sides of the second fixed block 3, a bearing block 202 fixed to the lower end of the fixed frame 201, and a roller 203 fixed to the lower end of the bearing block 202. Limiting mechanisms are provided on both sides of the first test box 1. The limiting mechanisms include two guide rails 9, and the ends of the two guide rails 9 that are close to each other are respectively attached to the two sides of the roller 203.

[0048] In this embodiment, specifically: the lifting mechanism 4 includes a bracket 41 fixed to the upper end of the second fixed block 3, a first cylinder 42 fixed to the bracket 41, and a lifting block 43 fixed to the lower end of the first cylinder 42.

[0049] In this embodiment, specifically: the bearing mechanism 5 includes two columns 51 fixed to the lower end of the lifting block 43 and a first U-shaped block 52 fixed to the lower end of the columns 51, and the magnesium carbon brick body 6 is slidably disposed on the inner wall of the two first U-shaped blocks 52.

[0050] In this embodiment, specifically: the acid and alkali immersion mechanism 7 includes a second test box 71 placed outside the first test box 1, a waste liquid drain pipe 72 that is fixed to the lower part of the side wall of the second test box 71, and a solenoid valve 73 disposed on the waste liquid drain pipe 72.

[0051] In this embodiment, specifically: the pressure mechanism 8 includes a support platform 81 fixed to the side wall of the second test box 71, a support block 82 fixed to the upper end of the support platform 81, a second cylinder 83 fixed to the upper end of the support block 82, a pressure block 84 fixed to the lower end of the output shaft of the second cylinder 83, and a tray 85 placed on the upper end of the support platform 81. The tray 85 and the pressure block 84 correspond to each other in the vertical direction.

[0052] In this embodiment, specifically: the impact height adjustment mechanism includes a limiting groove 101 that penetrates the side wall of the first test box 1, an impact plate 102 that slides on the inner wall of the first test box 1, a limiting block 103 that is fixed to the side wall of the impact plate 102, a plurality of first fixing blocks 104 that are fixed to the side wall of the first test box 1, a first screw hole 105 that penetrates one side of the first fixing block 104 and a second screw hole 106 that penetrates one side of the limiting block 103. A threaded post 107 is threadedly installed on the inner wall of the first screw hole 105. The threaded post 107 passes through the first screw hole 105 and the second screw hole 106 and is threadedly screwed to the inner wall of the other first screw hole 105.

[0053] In this embodiment, specifically, the heating mechanism includes two connecting blocks 11 fixed to the inner wall of the first tank 10 and a medium-frequency heating coil 12 fixed to the two connecting blocks 11.

[0054] In this embodiment, specifically: the guiding mechanism includes two guide blocks 20 fixed to the upper end of the second fixed block 3 and extending into the interior of the second fixed block 3, a second U-shaped block 21 fixed to the lower end of the two guide blocks 20, a second groove 22 penetrating through the upper and lower ends of the second U-shaped block 21, and a vertical block 23 fixed to the lower end of the second U-shaped block 21. The top surface, bottom surface, and side surface of the second U-shaped block 21 are all U-shaped.

[0055] In this embodiment, specifically: the pushing mechanism includes a first vertical plate 14 fixed to the lower end of the second fixed block 3, a first electric cylinder 15 fixed to the first vertical plate 14, a first push block 16 fixed to the output shaft of the first electric cylinder 15, a second vertical plate 17 fixed to the lower end of the second fixed block 3, a second electric cylinder 18 fixed to the second vertical plate 17, and a second push block 19 fixed to the output shaft of the second electric cylinder 18. The openings of the first push block 16 and the second U-shaped block 21 in the horizontal direction correspond to each other. When the first push block 16 moves in the horizontal direction, the first push block 16 can enter the interior of the second U-shaped block 21. The second push block 19 corresponds to the side of the second U-shaped block 21.

[0056] It should be noted that the side wall of the first test chamber 1 has a scale line in the vertical direction, and the scale line is located on both sides of the limiting groove 101.

[0057] Working principle: During testing, the impact energy is first set according to the test requirements through the impact height adjustment mechanism. That is, the threaded post 107 is loosened to disengage from the first screw hole 105 on the first fixed block 104 and the second screw hole 106 on the limiting block 103. The position of the impact plate 102 in the first test box 1 is manually adjusted up and down. After the limiting block 103 slides along the limiting groove 101 to the required height, the threaded post 107 is passed through the first screw hole 105 of the first fixed block 104 and the second screw hole 106 of the limiting block 103 corresponding to the height and tightened, thereby firmly locking the impact plate 102.

[0058] Subsequently, the magnesium carbon brick 6 to be tested is placed between the two first U-shaped blocks 52 of the bearing mechanism 5. Under the guidance and limitation of the guide rails 9 on both sides, the second fixed block 3, which integrates the heating mechanism and the guiding mechanism, is moved horizontally to the top of the first test box 1 by the roller 203 of the moving mechanism 2.

[0059] Start the lifting mechanism 4, the first cylinder 42 pushes the lifting block 43 and the supporting mechanism 5 below it to descend as a whole, so that the magnesium carbon brick 6 enters the first groove 10 of the second fixed block 3 and is heated by the medium frequency heating coil 12 of the heating mechanism.

[0060] After heating is completed, the first cylinder 42 continues to push the bearing mechanism 5 down. At this time, the bottom of the magnesia-carbon brick 6 contacts the guide block 20 of the guide mechanism and slides into the second U-shaped block 21 along its inclined surface and is limited. Then, the first electric cylinder 15 of the pushing mechanism is activated, driving the first push block 16 to extend horizontally into the opening of the second U-shaped block 21 and push the magnesia-carbon brick 6 out of it. The magnesia-carbon brick 6 falls vertically under the action of gravity and hits the impact plate 102 below, completing the thermal shock resistance test. This process can be recorded by the camera 13.

[0061] By changing the height of the impact plate 102, the impact damage at different drop heights can be repeatedly tested.

[0062] For corrosion resistance and strength testing, the magnesium carbon brick 6, which has undergone impact testing or is in its initial state, can be immersed in the second test chamber 71 of the acid and alkali immersion mechanism 7. After immersion, the solenoid valve 73 is opened to discharge the waste liquid through the waste liquid drain pipe 72. After the sample is taken out, it is directly moved to the adjacent pressure mechanism 8. The sample is placed on the tray 85 of the support platform 81, and the second cylinder 83 is started to drive the pressure block 84 to press down, so that the compressive strength test can be carried out.

[0063] 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.

[0064] 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 test rig for testing the properties of a magnesia carbon brick, the magnesia carbon brick being a magnesia carbon brick body (6), characterized in that: The utility model relates to a magnesium -carbon brick test device, including first test box (1), set in first test box (1) top's second fixed block (3), the moving mechanism (2) of fixed connection in second fixed block (3) both sides, fixed connection in second fixed block (3) upper end's lifting mechanism (4), fixed connection in the lifting mechanism (4) lifting end on the bearing mechanism (5), place in bearing mechanism (5) inside's magnesium -carbon brick body (6), set in first test box (1) outside's acid and alkali liquid soak mechanism (7) with set in acid and alkali liquid soak mechanism (7) side wall's pressure mechanism (8), second fixed block (3) side wall fixed connection has camera (13), First test box (1) is equipped with impact height adjusting mechanism in; Second fixed block (3) upper end is penetrated and is equipped with first slot (10), first slot (10) is equipped with heating mechanism in, first slot (10) is also equipped with guide mechanism in, first slot (10) lower end is equipped with push mechanism, When magnesium -carbon brick body (6) moves down along guide mechanism, push mechanism is used to push magnesium -carbon brick body (6) from guide mechanism, so that magnesium -carbon brick body (6) falls under the action of gravity.

2. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: Moving mechanism (2) includes fixed frame (201) fixed connection in second fixed block (3) both sides, bearing block (202) fixed connection in fixed frame (201) lower end and the gyro wheel (203) fixed connection in bearing block (202) lower end, the both sides of first test box (1) are equipped with limiting mechanism, and limiting mechanism includes two guide rails (9), and the both sides of two guide rails (9) are close to one end respectively with the both sides of gyro wheel (203) fit.

3. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: Lifting mechanism (4) includes support (41) fixed connection in second fixed block (3) upper end, first cylinder (42) fixed connection on support (41) and lifting block (43) fixed connection in first cylinder (42) lower end.

4. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: Bearing mechanism (5) includes two stand columns (51) fixed connection in lifting block (43) lower end and first U-shaped block (52) fixed connection in stand column (51) lower end, and magnesium -carbon brick body (6) is slidably arranged in the inner wall of two first U-shaped blocks (52).

5. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: Acid and alkali liquid soak mechanism (7) includes second test box (71) placed in first test box (1) outside, waste liquid discharge pipe (72) through fixed connection in second test box (71) side wall lower part and solenoid valve (73) set up in waste liquid discharge pipe (72).

6. The testing platform for magnesium-carbon brick performance according to claim 5, characterized in that: Pressure mechanism (8) includes bearing table (81) fixed connection in second test box (71) side wall, support block (82) fixed connection in bearing table (81) upper end, second cylinder (83) fixed connection in support block (82) upper end, pressure block (84) fixed connection in second cylinder (83) output shaft lower end and the supporting plate (85) placed in bearing table (81) upper end, and the supporting plate (85) and pressure block (84) correspond in vertical direction.

7. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: The impact height adjusting mechanism comprises a limiting slot (101) penetratingly arranged on the side wall of the first test box (1), an impact plate (102) slidingly arranged on the inner wall of the first test box (1), a limiting block (103) fixedly connected to the side wall of the impact plate (102), a plurality of first fixing blocks (104) fixedly connected to the side wall of the first test box (1), a first screw hole (105) penetratingly arranged on one side of the first fixing block (104), and a second screw hole (106) penetratingly arranged on one side of the limiting block (103), the inner wall of the first screw hole (105) is threadedly connected with a threaded column (107), the threaded column (107) penetrates through the first screw hole (105) and the second screw hole (106) and is threadedly connected to the inner wall of another first screw hole (105).

8. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: The heating mechanism comprises two connecting blocks (11) fixedly connected to the inner wall of the first groove body (10) and a middle-frequency heating coil (12) fixedly connected to the two connecting blocks (11).

9. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: The guiding mechanism comprises two guiding blocks (20) fixedly connected to the upper end of the second fixing block (3) and extending into the second fixing block (3), a second U-shaped block (21) fixedly connected to the lower end of the two guiding blocks (20), a second groove body (22) penetratingly arranged on the upper and lower ends of the second U-shaped block (21), and a vertical block (23) fixedly connected to the lower end of the second U-shaped block (21), the top surface, the bottom surface and the side surface of the second U-shaped block (21) are all U-shaped.

10. The performance test bench for magnesia carbon brick according to claim 1, characterized in that: The pushing mechanism comprises a first vertical plate (14) fixedly connected to the lower end of the second fixing block (3), a first electric cylinder (15) fixedly connected to the first vertical plate (14), a first pushing block (16) fixedly connected to the output shaft of the first electric cylinder (15), a second vertical plate (17) fixedly connected to the lower end of the second fixing block (3), a second electric cylinder (18) fixedly connected to the second vertical plate (17), and a second pushing block (19) fixedly connected to the output shaft of the second electric cylinder (18), the opening of the first pushing block (16) in the horizontal direction corresponds to the second U-shaped block (21), when the first pushing block (16) moves in the horizontal direction, the first pushing block (16) can enter the interior of the second U-shaped block (21), and the second pushing block (19) corresponds to the side surface of the second U-shaped block (21).

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