Detection device and method for detecting contact hardening activity of solid waste-based material

Abstract

The invention relates to the technical field of detection of contact hardening activity of solid waste-based materials, and discloses a detection device and method for detecting contact hardening activity of a solid waste-based material.The detection device for detecting contact hardening activity of a solid waste-based material comprises a base; the supporting seat is mounted on the base; the moving seat is mounted on the supporting seat in a sliding manner, and a pressurizing head is mounted on the moving seat; the pressure plate is mounted on the base and is used for placing a test piece; the two rotating shafts are rotationally mounted on the base, and the rotating shafts are in a horizontal state or a vertical state after rotating; when the rotating shafts are in a horizontal state, the two rotating shafts are located above the pressing disc and detachably connected with clamping seats used for clamping a test piece, the test piece is installed on the two clamping seats, the pressurizing head downwards makes contact with the test piece to detect the bending strength of the test piece, and when the rotating shafts are in a vertical state, the pressurizing head is matched with the pressing disc to detect the compressive strength of the test piece. The time for replacing the clamp and cleaning the table top can be shortened.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of detecting the contact hardening activity of solid waste-based materials, in particular to a detection device and method for detecting the contact hardening activity of solid waste-based materials. BACKGROUND

[0002] If the powder formed by crushing and grinding waste concrete is used as a cementitious component to replace part of cement, the contact hardening activity needs to be detected to ensure that the strength meets the standard. The detection of the contact hardening activity of solid waste-based materials is to simulate the hardening environment through a specific device and then evaluate the reaction degree and hardening effect by a corresponding method.

[0003] The compressive strength and the flexural strength of the hardened test piece (such as a mortar test block or a neat paste test block) are the core of the activity judgment. The mortar test block (or the solid waste neat paste test block) of the solid waste and cement is prepared first, and then the compressive or flexural strength of the two groups of test blocks is tested by using a hydraulic universal testing machine, and the ratio of the strength of the solid waste test block to the strength of the pure cement test block is calculated. The higher the ratio is, the stronger the contact hardening activity of the solid waste is.

[0004] According to the related technology in the above, the inventors believe that the hydraulic universal testing machine needs to use different clamps for the bending and compression of the test piece. Generally, the bending test piece is cleaned on the table, and then a relatively complete test block after bending is taken for compression test. The table needs to be cleaned twice and the clamps need to be replaced, and the overall test time is relatively long. SUMMARY

[0005] In order to improve the above situation, the application provides a detection device and method for detecting the contact hardening activity of solid waste-based materials.

[0006] In a first aspect, the application provides a detection device for detecting the contact hardening activity of solid waste-based materials, which adopts the following technical solution: A detection device for detecting the contact hardening activity of solid waste-based materials, comprising: a base; a support seat installed on the base; a moving seat slidably installed on the support seat, a driving member for driving the moving seat to move being installed on the support seat, and a pressing head being installed on the moving seat; a pressure plate installed on the base for placing a test piece; two rotating shafts rotatably installed on the base, the rotating shafts being in a horizontal state or a vertical state after being rotated; When the rotating shaft is in a horizontal state, the two rotating shafts are detachably connected with clamping seats for clamping a test piece, the test piece is installed on the two clamping seats, the clamping seats abut against the pressure plate, the test piece and the pressure plate are spaced apart, the pressurizing head contacts the test piece downward to test the bending strength of the test piece, and when the rotating shaft is in a vertical state, the rotating shaft is away from the pressure plate, and the pressurizing head is used for testing the compressive strength of the test piece in cooperation with the pressure plate.

[0007] By adopting the technical scheme, when the bending strength is tested, the rotating shaft is rotated to be horizontal, the test piece is fixed by the clamping seat, the pressurizing head is started to contact the test piece downward to complete the bending test; only the rotating shaft needs to be rotated to be vertical, the test piece is directly placed on the pressure plate after the debris on the pressure plate is cleaned, and the pressurizing head is started to perform the compression test, so that the time for replacing the clamp and cleaning the table surface is reduced.

[0008] Optionally, the first baffle and the second baffle have the same center, the first baffle is fixedly installed on the base, the second baffle is rotatably installed in the circumferential direction of the first baffle, the second baffle rotates in a direction away from the first baffle, the second baffle and the first baffle form a protective baffle ring, and the pressure plate and the rotating shaft are located in the protective baffle ring.

[0009] By adopting the technical scheme, when the test piece is installed, the second baffle is rotated to cover the first baffle, so that a person can quickly complete the installation of the test piece (clamping and fixing in the bending test or placing the pressure plate in the compression test); before starting the test, the second baffle is rotated to form the protective baffle ring together with the first baffle, so that the debris generated by the broken test piece is prevented from splashing during the pressurizing process, and the test piece can be taken and placed again after being reversely rotated after the test is completed, so that the operation is continuous.

[0010] Optionally, the rotating shaft is rotatably installed on the first baffle, the first baffle is provided with a first through groove, the first through groove and the rotating shaft are correspondingly arranged, the first baffle is fixedly installed with a fixing rod in the first through groove, one end of the rotating shaft is rotatably installed on the fixing rod, one side of the first baffle close to the pressure plate is provided with a clearance groove, the clearance groove and the first through groove are communicated, and when the rotating shaft is rotated to be vertical, the rotating shaft is located in the clearance groove.

[0011] By adopting the technical scheme, when the bending strength is tested, the rotating shaft is rotated to be horizontal around the fixing rod, and the clamping seat and the test piece are stably supported; when the compressive strength is tested, the rotating shaft is rotated to be vertical and embedded in the clearance groove, and the rotating shaft is completely accommodated in the first baffle.

[0012] Optionally, a screw rod is arranged on the upper surface of the first baffle, the screw rod extends into the first through groove, the screw rod is in threaded connection with the first baffle, and the screw rod abuts against the rotating shaft.

[0013] By adopting the technical scheme, the shaft is rotated to the horizontal position, the screw is screwed to abut against the shaft, the driving member is started to enable the pressing head to exert the bending force on the test piece, the shaft cannot rotate or deviate due to the force, and the test piece always keeps a stable force-bearing posture.

[0014] Optionally, a second through groove is formed on the side of the second baffle and the first baffle, the second through groove and the first through groove are communicated when the second baffle covers the first baffle, the shaft extends into the second through groove when the shaft slides along the length direction of the fixed rod, and the shaft limits the rotation of the second baffle.

[0015] By adopting the technical scheme, the shaft is slid into the second through groove along the length direction of the fixed rod, and the second baffle cannot rotate at this time.

[0016] Optionally, a scraping plate is connected to one end of the second baffle in the arc direction.

[0017] By adopting the technical scheme, the scraping plate is connected to the arc-shaped end of the second baffle, and the scraping plate moves synchronously with the second baffle when the second baffle rotates, so that the debris around the pressing plate can be scraped to a specified area.

[0018] Optionally, an intercepting plate is connected to one end of the first baffle in the arc direction away from the scraping plate.

[0019] By adopting the technical scheme, when the scraping plate moves with the second baffle to scrape the debris, the debris is pushed by the scraping plate to the direction of the intercepting plate, the intercepting plate blocks the debris from moving further, and the debris is concentrated in the area between the scraping plate and the intercepting plate, so that the debris in the concentrated area can be cleaned in the subsequent cleaning.

[0020] Optionally, a support column is connected to the first baffle, the support column is fixedly installed on the base, a space for accommodating the second baffle is left between the first baffle and the support column, the second baffle is connected to the scraping plate through a connecting rod, a space is left between the first baffle and the base, the connecting rod slides into the space between the first baffle and the base, and the scraping plate is attached to the inner wall of the first baffle.

[0021] By adopting the technical scheme, when the second baffle rotates, the connecting rod smoothly slides in the space between the first baffle and the base, and does not collide with the base or the first baffle; at the same time, the scraping plate is always attached to the inner wall of the first baffle and the surface of the base, and the debris attached to the inner wall of the baffle and the debris on the base can be completely scraped.

[0022] In a second aspect, the application provides a detection method for detecting the hardening activity of a solid waste-based material, and adopts the following technical scheme: A method for detecting the contact hardening activity of solid waste-based materials, using the aforementioned detection device, includes the following steps: S1. First, rotate the shaft to a horizontal position, fix the clamping seat on the shaft, place the specimen on the two clamping seats, and leave a gap between the specimen and the pressure plate. S2. Rotate the second baffle, and the first and second baffles form a protective ring; S3. The drive unit starts, causing the moving seat to move downward along the support seat, and the pressure head applies pressure to the specimen to test the bending strength of the specimen. S4. When the second baffle is rotated, the scraper rotates along with the second baffle, causing the scraper to collect the debris; S5. Remove the clamping seat and rotate the shaft to a vertical position; S6. Place the specimen directly on the pressure plate and change the pressure head specification; S7. Rotate the second baffle, and the first and second baffles form a protective ring; S8. The drive unit starts, causing the moving seat to move downward along the support seat, and the pressure head applies pressure to the specimen to test the pressure strength of the specimen. S9. When the second baffle is rotated, the scraper rotates along with the second baffle, causing the scraper to collect the debris.

[0023] By adopting the above technical solution, the bending strength test is first completed through steps S1-S3, and the bending test debris is collected simultaneously in step S4; then, the system quickly switches to the compressive strength test mode through steps S5-S6, and the compressive strength test is completed through steps S7-S8, with the compressive strength test debris collected simultaneously in step S9. The entire process requires no device replacement or multiple cleanings of the work surface; only one device and nine consecutive steps are needed to complete both strength tests.

[0024] In summary, this application includes at least one of the following beneficial effects: 1. The two rotating shafts can switch between horizontal and vertical states. When horizontal, they work with the clamping seat to form a bending test station. When vertical, they are stored in the first baffle groove without taking up space. The pressure plate can be directly used as a pressure test station. There is no need to disassemble or replace the clamps. The test mode can be switched simply by rotating the rotating shaft. 2. When the second baffle rotates to cover the first baffle, there is no obstruction, which facilitates the installation of the specimen (fixing the clamping seat when bending, and placing the pressure plate when resisting pressure). Rotating before testing can form a protective retaining ring. The operation is smooth. When the rotating shaft slides into the second through groove of the second baffle, the position of the second baffle can be locked, so that the second baffle can keep covering the first baffle. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2This is a schematic diagram illustrating the structure of the first baffle and the base with a gap in an embodiment of this application; Figure 3 This is a partial structural diagram of an embodiment of this application; Figure 4 This is a cross-sectional schematic diagram illustrating that the rotating shaft is in a horizontal state according to an embodiment of this application; Figure 5 This is a cross-sectional schematic diagram illustrating that the rotating shaft is in a vertical position according to an embodiment of this application; Figure 6 This is another cross-sectional view of an embodiment of this application where the rotating shaft is in a horizontal position; Figure 7 This is a schematic diagram illustrating the structure of the first baffle and the second baffle in an embodiment of this application; Figure 8 This is a cross-sectional schematic diagram illustrating the cooperation between the first baffle and the second baffle in an embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 10, base; 20, support seat; 30, movable seat; 40, pressure plate; 50, first baffle; 51, first through groove; 52, fixing rod; 53, clearance groove; 54, screw; 55, intercepting plate; 551, first intercepting part; 552, second intercepting part; 60, support column; 70, rotating shaft; 71, nut; 80, clamping seat; 81, groove; 90, second baffle; 91, second through groove; 92, connecting rod; 93, scraper; 931, first scraping part; 932, second scraping part. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail.

[0028] This embodiment discloses a testing device and method for detecting the contact hardening activity of solid waste-based materials, aiming to solve the problem of long testing time caused by the need to change the fixtures and clean the table repeatedly during the testing of traditional hydraulic universal testing machines, and to achieve efficient and safe integrated testing of bending strength and compressive strength.

[0029] Embodiment 1 of this application discloses a detection device for detecting the contact hardening activity of solid waste-based materials. (Refer to...) Figure 1A testing device for detecting the contact hardening activity of solid waste-based materials includes a base 10, a support 20, and a movable seat 30. The support 20 is fixedly installed on the upper surface of the base 10 and extends vertically. The movable seat 30 is slidably installed on the support 20 via a slide rail. A driving component, preferably a hydraulic cylinder, is fixedly installed on the top of the support 20. Its output end is fixedly connected to the movable seat 30, which can drive the movable seat 30 to slide up and down along the support 20. At the same time, a pressure head is detachably installed on the lower surface of the movable seat 30. A pressure head with a longer length can be customized. The specifications of the pressure head can be changed according to the testing requirements to adapt to the different pressure transmission requirements of bending strength and compressive strength testing. This application does not modify the pressure head and will not elaborate further.

[0030] Reference Figure 1 A pressure plate 40 is installed on the base 10. The pressure plate 40 serves as the specimen support component during the compressive strength test. It is fixedly installed at the center of the upper surface of the base 10, and the pressure plate 40 corresponds vertically to the pressure head on the movable seat 30 to ensure that the pressure can be applied vertically to the specimen during pressurization.

[0031] Refer to 1 and Figure 2 A first baffle 50 is mounted on the base 10. The first baffle 50 is fixed to the base 10 by a support column 60. The lower end of the support column 60 is inserted and fixed to the upper surface of the base 10, and the upper end is fixedly connected to the lower surface of the first baffle 50. A certain gap is left between the first baffle 50 and the base 10.

[0032] Reference Figure 3 and Figure 4 The first baffle 50 has two symmetrically arranged first through slots 51. A horizontal fixed rod 52 is fixedly installed in each first through slot 51. The two ends of the fixed rod 52 are fixedly connected to the two side walls of the first through slot 51, respectively. A rotating shaft 70 is rotatably connected to the fixed rod 52, so that the rotating shaft 70 can rotate around the fixed rod 52 and switch between horizontal and vertical states.

[0033] Reference Figure 3 The first baffle 50 has a relief groove 53 on one side near the pressure plate 40, which communicates with the first through groove 51. When the rotating shaft 70 rotates to a vertical position, the main body of the rotating shaft 70 can be embedded in the relief groove 53.

[0034] Reference Figure 3 and Figure 4When the rotating shaft 70 rotates to a horizontal position, it is positioned above the pressure plate 40. Two nuts 71 are threaded onto the rotating shaft 70, and a clamping seat 80 passes through it. The two nuts 71 are used to secure the clamping seat 80 to the rotating shaft 70. The clamping seat 80 has grooves 81 for inserting the test piece. When the test piece is mounted on the two clamping seats 80, a gap is maintained between the test piece and the pressure plate 40. The pressure head applies downward pressure and makes contact for a period of time to test the degree of bending of the test piece.

[0035] Reference Figure 5 First, remove the clamping seat 80 and nut 71 from the rotating shaft 70. When the rotating shaft 70 is rotated to a vertical position, the specimen is placed on the pressure plate 40. The pressure head and the pressure plate 40 are then engaged to test the compressive strength of the specimen.

[0036] Reference Figure 5 and Figure 6 The upper surface of the first baffle 50 is also provided with screws 54 that correspond one-to-one with the first through groove 51. The screws 54 are threadedly connected to the first baffle 50. The lower end of the screws 54 can extend into the first through groove 51 and abut against the rotating shaft 70. When the rotating shaft 70 rotates to a horizontal state, tightening the screws 54 can fix the rotating shaft 70 and prevent it from rotating or shifting during the bending test pressure process.

[0037] Reference Figure 7 It also includes a second baffle 90, which is concentrically positioned with the first baffle 50. The second baffle 90 is rotatably mounted on the outside of the first baffle 50, located between the support column 60 and the first baffle 50. The second baffle 90 can rotate along the circumference of the first baffle 50. When the second baffle 90 rotates away from the first baffle 50, it can form an annular protective ring with the first baffle 50. The pressure plate 40, the rotating shaft 70, and the clamping seat 80 are all located within this protective ring, which can effectively block the flying debris generated by the breakage of the specimen during the test. The upper end of the first baffle 50 and the moving seat 30 do not interfere with each other, and the pressure head extends into the protective ring of the first baffle 50 and the second baffle 90.

[0038] Reference Figure 8 The second baffle 90 has a second through groove 91 on the side facing the first baffle 50, corresponding to the position of the first through groove 51. When the second baffle 90 rotates to cover the first baffle 50, the second through groove 91 is fully connected to the first through groove 51. At this time, the rotating shaft 70 is slid along the length of the fixing rod 52 towards the second through groove 91, and the end of the rotating shaft 70 can extend into the second through groove 91, thereby restricting the rotation of the second baffle 90 and keeping the second baffle 90 in a covered state, which facilitates the installation of the specimen. When the first rotating shaft 70 returns completely to the first through groove 51 along the fixing rod 52, the second baffle 90 rotates in a direction away from the first baffle 50.

[0039] Reference Figure 6 andFigure 7 At one end of the second baffle 90 in the arc direction, a scraper 93 is fixedly connected to a connecting rod 92. One end of the connecting rod 92 is fixedly connected to the second baffle 90, and the other end is fixedly connected to the scraper 93. The connecting rod 92 can slide into the gap between the first baffle 50 and the base 10, while one side of the scraper 93 is tightly fitted against the inner wall of the first baffle 50. In order for the scraper 93 to rotate along the pressure plate 40, the scraper 93 is a telescopic plate, including a first scraping part 931 fixedly connected to the connecting rod 92, and a second scraping part 932 inserted into the first scraping part 931. The second scraping part 932 contacts the side wall of the pressure plate 40, and the first scraping part 931 and the second scraping part 932 are inserted to form a telescopic structure. When the second baffle 90 is rotated, the scraper 93 can move synchronously with it, scraping the debris around the pressure plate 40 and on the base 10 in a specified direction.

[0040] Reference Figure 7 and Figure 8 A baffle plate 55 is fixedly connected to one end of the first baffle plate 50 away from the scraper 93 in the arc direction. The baffle plate 55 is set perpendicular to the inner wall of the first baffle plate 50. When the scraper 93 scrapes debris to the baffle plate 55, the baffle plate 55 can prevent the debris from moving further, so that the debris is concentrated in the area between the scraper 93 and the baffle plate 55, which is convenient for subsequent one-time cleaning. The baffle plate 55 can also be a telescopic structure, including a first baffle part 551 and a second baffle part 552. The first baffle part 551 is slidably connected to the first baffle plate 50, and the second baffle part 552 is inserted into the first baffle part 551. The second baffle part 552 slides along the first baffle part 551 to realize the change of the area of ​​the baffle plate 55, so that the second baffle part 552 can fit against the side plate of the pressure plate 40.

[0041] The universal testing machine was originally equipped with a protective door. When the second baffle 90 covers the first baffle 50 or forms a retaining ring, it does not affect the closing of the protective door. The protective door provides protection when the universal testing machine is performing tensile tests.

[0042] The implementation principle of the detection device for detecting the contact hardening activity of solid waste-based materials in this application embodiment is as follows: First, a bending strength test is conducted. The two rotating shafts 70 are rotated around the fixed rod 52 to a horizontal position. The screw 54 on the first baffle 50 is tightened, pressing against the rotating shaft 70 to fix its position. Then, the clamping seat 80 is detachably installed at the ends of the two rotating shafts 70 using bolts. The prepared solid waste-based material specimen is placed between the two clamping seats 80 and fixed, ensuring sufficient clearance between the specimen and the pressure plate 40 below to avoid contact. Next, the second baffle 90 is rotated away from the first baffle 50 until it forms a protective ring with the first baffle 50. The drive mechanism on the support base 20 is activated, pushing the moving seat 30 downwards along the support base 20, causing the pressure head on the moving seat 30 to contact the upper surface of the specimen and continuously apply pressure until the specimen bends and fails. The pressure data at this point is recorded, completing the bending strength test. After the test, the second baffle 90 is rotated in the opposite direction so that the scraper 93 rotates synchronously with the second baffle 90, scraping the debris around the pressure plate 40 to the interceptor plate 55 for collection, thus completing the debris cleaning. Then, switch to the compressive strength test. First, remove the clamping seat 80 from the rotating shaft 70, loosen the screw 54, and rotate the two rotating shafts 70 around the fixed rod 52 to a vertical position, so that the rotating shafts 70 are embedded in the relief groove 53 of the first baffle 50. According to the compressive strength test requirements, change the specification of the pressure head on the moving seat 30. Place another specimen directly on the upper surface of the pressure plate 40 and align it. Rotate the second baffle 90 again so that it surrounds the first baffle 50 to form a protective retaining ring. Start the drive component so that the moving seat 30 drives the pressure head to move downward, applying pressure to the specimen on the pressure plate 40 until the specimen is crushed. Record the pressure data to complete the compressive strength test. Finally, rotate the second baffle 90 again, and use the scraper 93 to collect the debris generated during the compressive strength test to the interceptor plate 55. After cleaning, the test is complete.

[0043] Example 2 of this application discloses a method for detecting the contact hardening activity of solid waste-based materials.

[0044] A method for detecting the contact hardening activity of solid waste-based materials, using the aforementioned detection device, includes the following steps: S1. First, rotate the shaft 70 to a horizontal position, fix the clamping seat 80 on the shaft 70, place the specimen on the two clamping seats 80, and leave a gap between the specimen and the pressure plate 40. S2. Rotate the second baffle 90, and the first baffle 50 and the second baffle 90 form a protective ring; S3. The driving component is activated, causing the moving seat 30 to move downward along the support seat 20. The pressure head applies pressure to the specimen to test the bending strength of the specimen. S4. When the second baffle 90 is rotated, the scraper 93 rotates along with the second baffle 90, so that the scraper 93 collects the debris. S5. Remove the clamping seat 80 and rotate the shaft 70 to a vertical position; S6. Place the specimen directly on the pressure plate 40 and change the pressure head specification; S7. Rotate the second baffle 90, and the first baffle 50 and the second baffle 90 form a protective retaining ring; S8. The driving component is activated, causing the movable seat 30 to move downward along the support seat 20, and the pressure head applies pressure to the specimen to test the pressure strength of the specimen. S9. When the second baffle 90 is rotated, the scraper 93 rotates along with the second baffle 90, so that the scraper 93 collects the debris.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A detection device for detecting the contact hardening activity of solid waste-based materials, characterized in that, include: Base (10); A support base (20) is mounted on the base (10); A movable seat (30) is slidably mounted on the support seat (20). The support seat (20) is equipped with a driving component for moving the movable seat (30). A pressure head is mounted on the movable seat (30). A pressure plate (40) is mounted on the base (10) for placing the test specimen; Two rotating shafts (70) are rotatably mounted on the base (10). After the rotating shafts (70) rotate, they are in a horizontal or vertical state. When the rotating shaft (70) is in a horizontal state, it is located above the pressure plate (40). Both rotating shafts (70) are detachably connected to clamping seats (80) for holding the specimen. The clamping seats (80) abut against the pressure plate (40). The specimen is installed on the two clamping seats (80). There is a gap between the specimen and the pressure plate (40). The pressure head is downward and in contact with the specimen to test the bending strength of the specimen. When the rotating shaft (70) is in a vertical state, the rotating shaft (70) is away from the pressure plate (40). When the pressure head and the pressure plate (40) cooperate, they are used to test the compressive strength of the specimen.

2. The detection device for detecting the contact hardening activity of solid waste-based materials according to claim 1, characterized in that, It also includes a first baffle (50) and a second baffle (90) with the same center. The first baffle (50) is fixedly installed on the base (10). The second baffle (90) is rotatably installed in the circumferential direction of the first baffle (50). The second baffle (90) rotates in a direction away from the first baffle (50). The second baffle (90) and the first baffle (50) surround each other to form a protective retaining ring. The pressure plate (40) and the rotating shaft (70) are located inside the protective retaining ring.

3. The detection device for detecting the contact hardening activity of solid waste-based materials according to claim 2, characterized in that, The rotating shaft (70) is rotatably mounted on the first baffle (50). The first baffle (50) has a first through groove (51). The first through groove (51) and the rotating shaft (70) are correspondingly arranged. A fixing rod (52) is fixedly installed in the first through groove (51) of the first baffle (50). One end of the rotating shaft (70) is rotatably mounted on the fixing rod (52). A clearance groove (53) is opened on the side of the first baffle (50) near the pressure plate (40). The clearance groove (53) is connected to the first through groove (51). When the rotating shaft (70) rotates to a vertical state, the rotating shaft (70) is located in the clearance groove (53).

4. The detection device for detecting the contact hardening activity of solid waste-based materials according to claim 3, characterized in that, A screw (54) is provided on the upper surface of the first baffle (50). The screw (54) extends into the first through groove (51). The screw (54) and the first baffle (50) are threaded together. The screw (54) abuts against the rotating shaft (70).

5. The detection device for detecting the contact hardening activity of solid waste-based materials according to claim 3, characterized in that, The second baffle (90) and the first baffle (50) are fitted together with a second through groove (91). When the second baffle (90) covers the first baffle (50), the second through groove (91) and the first through groove (51) are connected. When the rotating shaft (70) slides along the length direction of the fixed rod (52), it extends into the second through groove (91). The rotating shaft (70) restricts the rotation of the second baffle (90).

6. The detection device for detecting the contact hardening activity of solid waste-based materials according to claim 5, characterized in that, The second baffle (90) has a scraper (93) connected to one end in the arc direction.

7. The detection device for detecting the contact hardening activity of solid waste-based materials according to claim 6, characterized in that, An intercepting plate (55) is connected to one end of the first baffle (50) that is away from the scraper (93) in an arc direction.

8. The apparatus according to claim 7, characterized in that, The first baffle (50) is connected to a support column (60), which is fixedly installed on the base (10). There is a gap between the first baffle (50) and the support column (60) for the second baffle (90) to be accommodated. The second baffle (90) is connected to the scraper (93) through a connecting rod (92). There is a gap between the first baffle (50) and the base (10). The connecting rod (92) slides into the gap between the first baffle (50) and the base (10). The scraper (93) is in contact with the inner wall of the first baffle (50).

9. A method for detecting the contact hardening activity of solid waste-based materials, wherein the detection is performed using the detection device for detecting the contact hardening activity of solid waste-based materials according to claim 8, characterized in that... Includes the following steps: S1. First, rotate the shaft (70) to a horizontal position, fix the clamping seat (80) on the shaft (70), place the specimen on the two clamping seats (80), and leave a gap between the specimen and the pressure plate (40); S2. Rotate the second baffle (90), and the first baffle (50) and the second baffle (90) form a protective retaining ring; S3. The driving component is started to move the moving seat (30) downward along the support seat (20), and the pressure head applies pressure to the specimen to test the bending strength of the specimen; S4. When the second baffle (90) is rotated, the scraper (93) rotates along with the second baffle (90), so that the scraper (93) collects the debris; S5. Remove the clamping seat (80) and rotate the shaft (70) to a vertical position; S6. Place the specimen directly on the pressure plate (40) and change the pressure head specification; S7. Rotate the second baffle (90), and the first baffle (50) and the second baffle (90) form a protective retaining ring; S8. The driving component is activated to move the moving seat (30) downward along the support seat (20), and the pressure head applies pressure to the specimen to test the pressure strength of the specimen; S9. When the second baffle (90) is rotated, the scraper (93) rotates along with the second baffle (90), so that the scraper (93) collects the debris.

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