Device for detecting high-temperature volume stability of refractory material

Abstract

The utility model belongs to the technical field of detection, particularly relates to a refractory material high-temperature volume stability detection device, and provides the following scheme that the refractory material high-temperature volume stability detection device comprises a detection machine body and a sealing cover, the sealing cover is fixed on the detection machine body, a detection chamber is formed between the sealing cover and the detection machine body, and a detection opening communicated with the detection chamber is formed in the sealing cover; a sealing door is slidably connected to one side of the detection opening, a temperature sensor and a heater are arranged in the detection chamber, a supporting mechanism used for clamping a refractory material is arranged at the bottom of the detection chamber, a detection mechanism is arranged on one side of the detection chamber, and the detection mechanism comprises a shell, a screw rod, a moving block, a detection motor, a fixing plate, a hydraulic cylinder, a connecting base, a detection plate and a U-shaped pipe. And the shell is fixed on one side of the detection chamber. The volume change of the refractory material is detected by observing the change of the liquid level, so that the influence on the detection of the refractory material caused by inconvenience in observation due to lower expansion degree of the refractory material is prevented.

Description

Technical Field

[0001] This utility model relates to the field of testing, and in particular to a device for testing the high-temperature volume stability of refractory materials. Background Technology

[0002] Refractory materials are materials that can withstand extreme conditions such as high temperature, high pressure, and chemical erosion while maintaining stability, durability, and performance. They are mainly used in high-temperature equipment and refractory structures in industries such as metallurgy, petroleum, chemical, and construction. When using refractory materials, it is necessary to conduct high-temperature resistance testing through testing devices.

[0003] A search revealed Chinese patent application CN220120786U, which discloses a quality testing device for refractory materials, relating to the field of refractory material testing technology. The device includes: a first support plate and a second support plate; and a measuring component comprising a base plate and a motor. In this invention, after the calcining furnace body completes high-temperature testing of the refractory material, the motor drives a bidirectional threaded rod to rotate, causing two threaded blocks to move towards each other on the surface of the rod. This allows two extrusion plates to begin pressing the refractory material on both sides of the placement plate. Simultaneously, a pressure measuring instrument fixedly connected below the two threaded blocks presses against the force plate, thereby calculating the stress strength of the refractory material and completing the pressure resistance test. This avoids the need for manual operation to transfer the high-temperature refractory material before testing, which could lead to accidents during the transfer process, thus reducing the safety hazards of the refractory material quality testing device.

[0004] Existing testing equipment may fail to detect the small expansion of refractory materials under high temperatures, leading to inaccuracies in the test data. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-temperature volume stability testing device for refractory materials includes a testing body and a sealing cover. The sealing cover is fixed to the testing body, forming a testing chamber between them. The sealing cover has a testing port communicating with the testing chamber. A sealing door is slidably connected to one side of the testing port. A temperature sensor and a heater are installed inside the testing chamber. A support mechanism for clamping the refractory material is provided at the bottom of the testing chamber. A testing mechanism is provided on one side of the testing chamber. The testing mechanism includes a housing, a screw, a moving block, a testing motor, a fixed plate, a hydraulic cylinder, a connecting seat, a testing plate, and a U-shaped tube. The housing is fixed to one side of the testing chamber. One end of the screw is rotatably connected to the sealing cover. The testing motor is driven by the screw. The moving block is slidably connected inside the housing and threadedly connected to the screw. The fixed plate is fixed to the moving block. Both ends of the hydraulic cylinder are connected to the fixed plate and the connecting seat, respectively. The connecting seat has a pull-out groove. A piston plate is slidably connected in the pull-out groove. The piston plate is fixedly connected to the testing plate, and a piston spring connects the two. The U-shaped tube is fixed to the top of the connecting seat and communicates with the pull-out groove through a conduit.

[0007] Preferably, the support mechanism includes a bracket, two supports and two clamping plates. The bracket is fixed to the bottom of the detection chamber, the two supports are located on both sides of the bracket, and the two clamping plates are elastically connected to the bracket through clamping plate springs. At least one of the clamping plates is equipped with a displacement sensor.

[0008] Preferably, the inner wall of the detection port is provided with a groove, and the sealing door is slidably connected in the groove.

[0009] Preferably, a sealing groove is provided on one side of the detection port, and a compression pad is provided inside the sealing groove.

[0010] Preferably, the top of the detection unit is equipped with a controller, which is electrically connected to a temperature sensor, a displacement sensor and a heater.

[0011] Preferably, a handle is connected to one side of the sealed door.

[0012] Preferably, sealing plugs are provided on both sides of the top of the U-shaped tube.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through its detection mechanism, places the refractory material on a support mechanism during the testing process. The support mechanism clamps and limits the refractory material. After placement, the sealing door is closed, and the controller activates a heater to heat the interior of the testing chamber, thus performing high-temperature testing on the refractory material. A temperature sensor monitors the temperature inside the testing chamber. When the refractory material expands on its side, the clamping plate shifts. A displacement sensor detects this movement. Simultaneously, the detection mechanism is activated, and a hydraulic cylinder moves the detection plate downwards, bringing one end of the detection plate into contact with the refractory material. When the upper surface of the material comes into contact, the detection motor is started, which drives the screw to rotate. The screw drives the detection plate to scrape the surface of the refractory material. When the volume of the refractory material expands, the movement of the detection plate will be resisted. At this time, the detection plate will drive the piston plate to compress inside the pull groove. The gas inside the pull groove will be transported to the inside of the U-shaped tube through the conduit. The gas pressure inside the U-shaped tube will increase, and the liquid level on the other side of the U-shaped tube will rise. The volume change of the refractory material can be detected by observing the change in liquid level. This prevents the small expansion degree of the refractory material from being difficult to observe, which would affect the detection of the refractory material.

[0015] 2. This utility model, through the setting of a sealing door, a sealing groove, and a compression pad, allows one side of the sealing door to act on the compression pad when the sealing door is closed. At this time, the compression pad is compressed under the pressure of the sealing door, and the compression pad expands under the pressure. The expanded compression pad fills the interior of the sealing groove, thereby sealing the refractory material testing and preventing the data accuracy of the refractory material testing from decreasing due to heat loss, thus affecting the refractory material testing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-temperature volume stability testing device for refractory materials proposed in this utility model;

[0017] Figure 2 This is a side view of the high-temperature volume stability testing device for refractory materials proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the support mechanism structure of a high-temperature volume stability testing device for refractory materials proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the detection mechanism of a high-temperature volume stability testing device for refractory materials proposed in this utility model;

[0020] Figure 5This is a partial structural schematic diagram of a high-temperature volume stability testing device for refractory materials proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of a high-temperature volume stability testing device for refractory materials proposed in this utility model, and a partial cross-sectional view of the testing mechanism.

[0022] In the attached diagram: 1. Detection body; 2. Sealing cover; 3. Sealing door; 4. Detection chamber; 5. Detection mechanism; 6. Heater; 7. Temperature sensor; 8. Controller; 9. Detection port; 10. Sealing groove; 11. Support mechanism; 12. Slide groove; 13. Bracket; 14. Support; 15. Clamping plate; 16. Displacement sensor; 17. Clamping spring; 18. Housing; 19. Screw; 20. Moving block; 21. Fixed plate; 22. Detection motor; 23. Hydraulic cylinder; 24. Connecting seat; 25. Pull-out groove; 26. Detection plate; 27. Compression pad; 28. Piston plate; 29. ​​Piston spring; 30. Conduit; 31. U-shaped tube. Detailed Implementation

[0023] Example 1, referring to Figures 1-6A high-temperature volume stability testing device for refractory materials includes a testing body 1 and a sealing cover 2. The sealing cover 2 is fixed to the testing body 1. A testing chamber 4 is provided between the sealing cover 2 and the testing body 1. A testing port 9 is provided between the testing chamber 4 and the sealing cover 2. A receiving groove is provided on one side of the testing port 9. A sealing door 3 is slidably connected to the inner wall of the receiving groove. A handle is bolted to one side of the sealing door 3. A temperature sensor 7 is provided on one side of the sealing cover 2. One end of the temperature sensor 7 is located inside the testing chamber 4. A heater 6 is bolted to one side of the testing chamber 4. A support mechanism 11 is provided at the bottom of the testing chamber 4. A testing mechanism 5 is provided on one side of the testing chamber 4. The testing mechanism 5 includes a housing 18, a screw 19, a moving block 20, a testing motor 22, a fixing plate 21, a hydraulic cylinder 23, a connecting seat 24, a testing plate 26, and a U-shaped tube 31. The housing 18 is bolted to the testing chamber 4. On one side, one end of the screw 19 is rotatably connected to the sealing cover 2 via a bearing. The detection motor 22 is fixed to one side of the sealing cover 2 by bolts. The detection motor 22 is fixedly connected to the screw 19. The moving block 20 is slidably connected to the inner wall of the housing 18. A threaded hole is opened through one side of the moving block 20. The threaded hole is threadedly connected to the screw 19. The fixing plate 21 is fixed to the moving block 20 by bolts. The two ends of the hydraulic cylinder 23 are fixedly connected to the fixing plate 21 and the connecting seat 24. A pull-out groove 25 is opened on one side of the connecting seat 24. A piston plate 28 is slidably connected to the inner wall of the pull-out groove 25. The piston plate 28 is fixedly connected to the detection plate 26. A piston spring 29 is bolted between the piston plate 28 and the pull-out groove 25. A U-shaped tube 31 is fixed to the top of the connecting seat 24. Sealing plugs are provided on both sides of the top of the U-shaped tube 31. A conduit 30 is provided between the sealing plugs and the pull-out groove 25.

[0024] When testing refractory materials, the refractory material is placed on the support mechanism 11, which clamps and limits its position. After placement, the sealing door 3 is closed, and the temperature inside the testing chamber 4 is monitored by the temperature sensor 7. When the lateral volume of the refractory material expands, the testing mechanism 5 is activated. The hydraulic cylinder 23 moves the testing plate 26 downwards, bringing one end of the testing plate 26 into contact with the upper surface of the refractory material. At this time, the testing motor 22 is activated, which drives the screw 19 to rotate, causing the screw 19 to move the testing plate 26... When the surface of the refractory material is scraped, the movement of the detection plate 26 will be resisted when the volume of the refractory material expands. At this time, the detection plate 26 will drive the piston plate 28 to compress inside the drawer 25. The gas inside the drawer 25 will be transported to the U-shaped tube 31 through the conduit 30. The gas pressure inside the U-shaped tube 31 will increase, and the liquid level on the other side of the U-shaped tube 31 will rise. The volume change of the refractory material can be detected by observing the change in liquid level, which prevents the small expansion degree of the refractory material from being difficult to observe, thus affecting the detection of the refractory material.

[0025] In this utility model, the support mechanism 11 includes a bracket 13, two supports 14 and two clamping plates 15. The bracket 13 is fixed to the bottom of the detection chamber 4 by bolts. The two supports 14 are welded to both sides of the bracket 13. Clamping plate springs 17 are welded between the two clamping plates 15 and the bracket 13. A displacement sensor 16 is bolted to one side of the clamping plate 15. When the side volume of the refractory material expands, the clamping plate 15 will be displaced. The movement of the clamping plate 15 is detected and processed by the displacement sensor 16.

[0026] In this invention, a controller 8 is bolted to one side of the top of the detection body 1. The controller 8 is electrically connected to the temperature sensor 7, the displacement sensor 16 and the heater 6.

[0027] In this invention, in order to improve the stability of the movement of the sealing door 3, a sliding groove 12 is provided on the inner wall of the detection port 9, and the sealing door 3 is slidably connected in the sliding groove 12.

[0028] Example 2, refer to Figures 1-5 A high-temperature volume stability testing device for refractory materials, compared with Embodiment 1, has a sealing groove 10 on one side of the detection port 9 to seal the temperature detection inside the detection chamber 4. In addition, a compression pad 27 is provided inside the sealing groove 10 to improve the sealing effect.

[0029] When the sealing door 3 is closed, one side of the sealing door 3 will act on the compression pad 27. At this time, the compression pad 27 will be compressed under the pressure of the sealing door 3, and the compression pad 27 will expand under the pressure. At this time, the expanded compression pad 27 will fill the interior of the sealing groove 10. Thus, the compression pad 27 can seal the refractory material test, preventing the data accuracy of the refractory material test from decreasing due to heat loss, thereby affecting the refractory material test.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-temperature volume stability testing device for refractory materials, comprising a testing body (1) and a sealing cover (2), wherein the sealing cover (2) is fixed on the testing body (1), forming a testing chamber (4) between the two, and the sealing cover (2) has a testing port (9) communicating with the testing chamber (4), characterized in that, A sealing door (3) is slidably connected to one side of the detection port (9). A temperature sensor (7) and a heater (6) are provided inside the detection chamber (4). A support mechanism (11) for clamping refractory materials is provided at the bottom of the detection chamber (4). A detection mechanism (5) is provided on one side of the detection chamber (4). The detection mechanism (5) includes a housing (18), a screw (19), a moving block (20), a detection motor (22), a fixing plate (21), a hydraulic cylinder (23), a connecting seat (24), a detection plate (26), and a U-shaped tube (31). The housing (18) is fixed to one side of the detection chamber (4). One end of the screw (19) is rotatably connected to the sealing cover (2). The detection motor... (22) is connected to the screw (19) for transmission. The moving block (20) is slidably connected to the housing (18) and threadedly connected to the screw (19). The fixed plate (21) is fixed on the moving block (20). The two ends of the hydraulic cylinder (23) are respectively connected to the fixed plate (21) and the connecting seat (24). The connecting seat (24) has a pull-out groove (25). A piston plate (28) is slidably connected in the pull-out groove (25). The piston plate (28) is fixedly connected to the detection plate (26) and a piston spring (29) is connected between them. The U-shaped tube (31) is fixed on the top of the connecting seat (24) and communicates with the pull-out groove (25) through the conduit (30).

2. The high-temperature volume stability testing device for refractory materials according to claim 1, characterized in that, The support mechanism (11) includes a bracket (13), two supports (14) and two clamps (15). The bracket (13) is fixed at the bottom of the detection chamber (4). The two supports (14) are located on both sides of the bracket (13). The two clamps (15) are elastically connected to the bracket (13) through clamp springs (17). At least one of the clamps (15) is provided with a displacement sensor (16).

3. The high-temperature volume stability testing device for refractory materials according to claim 1, characterized in that, The inner wall of the detection port (9) is provided with a groove (12), and the sealing door (3) is slidably connected in the groove (12).

4. The high-temperature volume stability testing device for refractory materials according to claim 1, characterized in that, A sealing groove (10) is provided on one side of the detection port (9), and a compression pad (27) is provided in the sealing groove (10).

5. The high-temperature volume stability testing device for refractory materials according to claim 1, characterized in that, The top of the detection body (1) is equipped with a controller (8), which is electrically connected to the temperature sensor (7), the displacement sensor (16) and the heater (6).

6. The high-temperature volume stability testing device for refractory materials according to claim 1, characterized in that, A handle is attached to one side of the sealed door (3).

7. The high-temperature volume stability testing device for refractory materials according to claim 1, characterized in that, Both sides of the top of the U-shaped tube (31) are provided with sealing plugs.

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