Corrosion resistance detection device for high-sulfate-resistance Portland cement

Abstract

The utility model relates to the technical field of corrosion resistance detection of cement, in particular to a corrosion resistance detection device for high-sulfate-resistance portland cement, which promotes the corrosion of a sulfate solution to a portland cement test block, reduces the detection time, and is convenient to use and high in practicability. Comprising a bottom plate, a support and a box body, the box body is fixedly installed at the upper end of the bottom plate through the support, a cavity is formed in the box body, and an opening is formed in the upper end of the box body; the device further comprises a three-jaw chuck and a moving mechanism, the three-jaw chuck is installed on the moving mechanism, and the moving mechanism is used for moving the three-jaw chuck.

Description

Technical Field

[0001] The utility model relates to the technical field of cement corrosion resistance detection, in particular to a detection device for the corrosion resistance of high sulfate-resistant Portland cement. Background Art

[0002] Portland cement refers to the cement made from limestone and gypsum, which has important applications in construction. For some Portland cements that need to be applied in acidic environments, such as those used in chemical plants, sewage treatment plants, or industrial waste storage plants, it is necessary to conduct sulfate resistance tests to detect their corrosion resistance. In the prior art, the utility model patent with the patent application number 202221527229.7 discloses a detection device for the sulfate corrosion resistance of concrete, which mainly consists of a mounting base, a sliding plate, a connecting shaft, a top plate, a detection box, a clamping member, etc. When detecting the corrosion resistance of a concrete test, first, the concrete test block is clamped and fixed by the clamping member, then sulfate solution is added into the detection box, and then the clamping member drives the concrete test block to move into the detection box, so that the test block is immersed in the sulfate solution in the detection box. After waiting for a period of time, the test block is taken out of the detection box, and then the corrosion effect of the test block is observed to infer the sulfate corrosion resistance of the test block. The inventor believes that there are the following problems in its use. When the test block is immersed in the sulfate solution, the sulfate solution only penetrates into the test block by its own diffusion, with a low penetration speed and a low corrosion speed for the test block, resulting in a long detection time and inconvenient use. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a detection device for the corrosion resistance of high sulfate-resistant Portland cement, which promotes the corrosion of the sulfate solution on the Portland cement test block, reduces the detection time, is convenient to use, and has high practicability.

[0004] The corrosion resistance detection device for high sulfate-resistant portland cement of the utility model includes a bottom plate, a bracket and a box body. The box body is fixedly installed at the upper end of the bottom plate through the bracket. A chamber is arranged inside the box body, and the upper end of the box body is open. It also includes a three-jaw chuck and a moving mechanism. The three-jaw chuck is installed on the moving mechanism, and the moving mechanism is used to move the three-jaw chuck. When detecting the sulfate resistance of a portland cement test block, first add a sulfate solution with a certain concentration into the chamber of the box body, then clamp and fix the portland cement test block through the three-jaw chuck, and then move the three-jaw chuck into the chamber of the box body through the moving mechanism, and immerse the portland cement test block in the sulfate solution. At the same time, the moving mechanism is used to drive the three-jaw chuck to drive the portland cement test block to continuously move in the sulfate solution, promote the relative movement between the sulfate solution and the portland cement test block, promote the speed of the sulfate solution infiltrating into the portland cement test block, and promote the corrosion of the sulfate solution on the portland cement test block. After waiting for a period of time, take out the portland cement test block from the sulfate solution and observe the corrosion situation. It promotes the corrosion of the sulfate solution on the portland cement test block, reduces the detection time, is easy to use, and has high practicability.

[0005] Preferably, the moving mechanism includes a cylinder, a push rod, a thrust bearing, a sliding shaft, a sleeve and a driving mechanism. The cylinder is fixedly installed at the upper end of the bottom plate, a push rod is arranged at the output end of the cylinder, the thrust bearing is fixedly installed at the upper end of the push rod, the lower part of the sliding shaft is rotatably installed on the thrust bearing, the three-jaw chuck is fixedly installed at the upper end of the sliding shaft, the sleeve is rotatably installed on the box body, the middle part of the sliding shaft is slidably connected with the sleeve up and down, a keyway is arranged on the sliding shaft, a spline is arranged inside the sleeve, and the driving mechanism is installed on the box body and is used to drive the sleeve to rotate. When adjusting the height of the three-jaw chuck, open the cylinder, and the cylinder drives the thrust bearing to drive the sliding shaft to adjust the height through the push rod, and the sliding shaft drives the portland cement test block to adjust the height through the three-jaw chuck. When promoting the relative movement between the portland cement test block and the sulfate solution, open the driving mechanism, and the driving mechanism drives the sliding shaft to rotate through the sleeve, and the sliding shaft drives the portland cement test block to rotate through the three-jaw chuck, thereby promoting the relative movement between the sulfate solution and the portland cement test block. It improves the speed of the sulfate solution infiltrating into the portland cement test block.

[0006] Preferably, the driving mechanism includes sprocket A, chain, sprocket B, driving shaft, fixing plate and driving motor. Sprocket A is fixedly sleeved on the casing. Sprocket A is in transmission connection with sprocket B through the chain. Sprocket B is fixedly installed at the lower end of the driving shaft. The driving shaft is rotatably installed on the fixing plate. The fixing plate is fixedly installed on the box body. The upper end of the driving shaft is connected to the output end of the driving motor. The driving motor is fixedly installed on the box body. When driving the three-jaw chuck to rotate, turn on the driving motor. The driving motor makes sprocket B rotate through the driving shaft. Sprocket B makes sprocket A drive the casing to rotate through the chain. The casing makes the three-jaw chuck drive the Portland cement test block to rotate through the sliding shaft, which facilitates the rotation of the casing.

[0007] Preferably, it further includes a blower, an annular pipe and multiple groups of exhaust pipes. The blower is fixedly installed on the box body. The annular pipe is fixedly installed at the lower part of the chamber of the box body. The output end of the annular pipe is provided with multiple groups of exhaust pipes. The output end of the blower is provided with an air delivery pipe. The output end of the blower is communicated with the annular pipe through the air delivery pipe. When performing the corrosion resistance test on the Portland cement test block, open the annular pipe to make the gas enter the sulfate solution through the blower and multiple groups of exhaust pipes, form bubbles in the sulfate solution, promote the tumbling of the sulfate solution, and promote the corrosion of the sulfate solution on the Portland cement test block.

[0008] Preferably, it further includes a lifting frame, a hydraulic cylinder, a pressure rod, a pressure sensor and a pressing plate. The hydraulic cylinder is fixedly installed at the upper end of the lifting frame. The pressure rod is slidably installed up and down on the lifting frame. The upper end of the pressure rod is connected to the output end of the hydraulic cylinder. The pressure sensor is fixedly installed at the lower end of the pressure rod. The pressing plate is fixedly installed at the lower end of the pressure sensor. The lifting frame is fixedly hoisted on the bracket in the workshop. After the corrosion resistance test on the Portland cement test block is completed, the hydraulic cylinder is used to lower the pressure rod, the pressure sensor and the pressing plate until the Portland cement test block is pressed onto the Portland cement test block until the pressure value displayed on the pressure sensor reaches the specified value, and observe whether cracks appear on the Portland cement test block after corrosion, so as to infer whether the Portland cement test block can ensure the specified strength after corrosion, which facilitates the pressure detection of the Portland cement test block.

[0009] Preferably, the box body further includes a heater. The output end of the heater is located in the chamber of the box body. The sulfate solution in the chamber of the box body is heated by the heater to promote the corrosion of the sulfate solution on the Portland cement test block, further reducing the detection time.

[0010] Preferably, the box body is made of corrosion-resistant stainless steel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: it promotes the corrosion of the sulfate solution on the Portland cement test block, reduces the detection time, is easy to use, and has high practicability. Description of the Drawings

[0012] Figure 1 is the first axonometric structural schematic diagram of the present utility model;

[0013] Figure 2 is the second axonometric structural schematic diagram of the present utility model;

[0014] Figure 3 is the sectional structural schematic diagram of the present utility model;

[0015] Figure 4 is the structural schematic diagram of the moving mechanism and the three-jaw chuck;

[0016] Figure 5 is the structural schematic diagram of the blower, the annular pipe and the exhaust pipe;

[0017] Figure 6 is the structural schematic diagram of the pressing plate, the pressure sensor and the lifting frame, etc.

[0018] Reference numerals in the drawings: 1, bottom plate; 2, bracket; 3, box body; 4, three-jaw chuck; 5, cylinder; 6, push rod; 7, thrust bearing; 8, sliding shaft; 9, sleeve; 10, sprocket A; 11, chain; 12, sprocket B; 13, drive shaft; 14, fixing plate; 15, drive motor; 16, blower; 17, annular pipe; 18, exhaust pipe; 19, lifting frame; 20, hydraulic cylinder; 21, pressing rod; 22, pressure sensor; 23, pressing plate; 24, heater; 25, Portland cement test block. Detailed implementation manners

[0019] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0020] Embodiment 1

[0021] As Figures 1 to 6, the anti-corrosion detection device for high sulfate-resistant Portland cement of the present utility model includes a bottom plate 1, a bracket 2, a box body 3, a three-jaw chuck 4 and a moving mechanism. The box body 3 is fixedly installed on the upper end of the bottom plate 1 through the bracket 2. A chamber is arranged inside the box body 3. The upper end of the box body 3 is open. The three-jaw chuck 4 is installed on the moving mechanism, and the moving mechanism is used to move the three-jaw chuck 4. When detecting the sulfate resistance of the Portland cement specimen 25, first add a sulfate solution with a certain concentration into the chamber of the box body 3, then clamp and fix the Portland cement specimen 25 through the three-jaw chuck 4, and then move the three-jaw chuck 4 into the chamber of the box body 3 through the moving mechanism, and immerse the Portland cement specimen 25 in the sulfate solution. At the same time, make the three-jaw chuck 4 drive the Portland cement specimen 25 to move continuously in the sulfate solution through the moving mechanism, promote the relative movement between the sulfate solution and the Portland cement specimen 25, promote the speed of the sulfate solution infiltrating into the Portland cement specimen 25, and promote the corrosion of the sulfate solution to the Portland cement specimen 25. After waiting for a period of time, take out the Portland cement specimen 25 from the sulfate solution and observe the corrosion situation. It promotes the corrosion of the sulfate solution to the Portland cement specimen 25, reduces the detection time, is easy to use, and has high practicability.

[0022] As Figure 1 and Figure 4 , the moving mechanism includes a cylinder 5, a push rod 6, a thrust bearing 7, a sliding shaft 8, a sleeve 9 and a driving mechanism. The cylinder 5 is fixedly installed on the upper end of the bottom plate 1. The output end of the cylinder 5 is provided with a push rod 6. The thrust bearing 7 is fixedly installed on the upper end of the push rod 6. The lower part of the sliding shaft 8 is rotatably installed on the thrust bearing 7. The three-jaw chuck 4 is fixedly installed on the upper end of the sliding shaft 8. The sleeve 9 is rotatably installed on the box body 3. The middle part of the sliding shaft 8 is slidably connected with the sleeve 9 up and down. A keyway is arranged on the sliding shaft 8, and a spline is arranged inside the sleeve 9. The driving mechanism is installed on the box body 3, and the driving mechanism is used to drive the sleeve 9 to rotate. When adjusting the height of the three-jaw chuck 4, open the cylinder 5. The cylinder 5 drives the thrust bearing 7 to drive the sliding shaft 8 to adjust the height through the push rod 6. The sliding shaft 8 drives the Portland cement specimen 25 to adjust the height through the three-jaw chuck 4. When promoting the relative movement between the Portland cement specimen 25 and the sulfate solution, open the driving mechanism. The driving mechanism drives the sliding shaft 8 to rotate through the sleeve 9. The sliding shaft 8 drives the Portland cement specimen 25 to rotate through the three-jaw chuck 4, and then promotes the relative movement between the sulfate solution and the Portland cement specimen 25. It improves the speed of the sulfate solution infiltrating into the Portland cement specimen 25.

[0023] As Figure 4, the drive mechanism includes sprocket A10, chain 11, sprocket B12, drive shaft 13, fixed plate 14 and drive motor 15. Sprocket A10 is fixedly sleeved on sleeve 9. Sprocket A10 is drivingly connected to sprocket B12 through chain 11. Sprocket B12 is fixedly installed at the lower end of drive shaft 13. Drive shaft 13 is rotatably installed on fixed plate 14. Fixed plate 14 is fixedly installed on box body 3. The upper end of drive shaft 13 is connected to the output end of drive motor 15. Drive motor 15 is fixedly installed on box body 3. When driving the three-jaw chuck 4 to rotate, turn on drive motor 15. Drive motor 15 causes sprocket B12 to rotate through drive shaft 13. Sprocket B12 causes sprocket A10 to drive sleeve 9 to rotate through chain 11. Sleeve 9 causes three-jaw chuck 4 to drive the Portland cement test block 25 to rotate through sliding shaft 8, which facilitates the rotation of sleeve 9.

[0024] Such as Figure 3 And Figure 5 , the blower 16 is fixedly installed on the box body 3. The annular pipe 17 is fixedly installed at the lower part of the chamber of the box body 3. The output end of the annular pipe 17 is provided with multiple groups of exhaust pipes 18. The output end of the blower 16 is provided with an air delivery pipe. The output end of the blower 16 is communicated with the annular pipe 17 through the air delivery pipe. When performing the corrosion resistance test on the Portland cement test block 25, open the annular pipe 17 to allow the gas to enter the sulfate solution through the blower 16 and multiple groups of exhaust pipes 18, form bubbles in the sulfate solution, promote the tumbling of the sulfate solution, and promote the corrosion of the Portland cement test block 25 by the sulfate solution.

[0025] Such as Figure 1 And Figure 6 , it further includes a lifting frame 19, a hydraulic cylinder 20, a pressure rod 21, a pressure sensor 22 and a pressing plate 23. The hydraulic cylinder 20 is fixedly installed at the upper end of the lifting frame 19. The pressure rod 21 is slidably installed up and down on the lifting frame 19. The upper end of the pressure rod 21 is connected to the output end of the hydraulic cylinder 20. The pressure sensor 22 is fixedly installed at the lower end of the pressure rod 21. The pressing plate 23 is fixedly installed at the lower end of the pressure sensor 22. The lifting frame 19 is fixedly hoisted on the bracket in the workshop. After the corrosion resistance test on the Portland cement test block 25 is completed, the hydraulic cylinder 20 is used to lower the pressure rod 21, the pressure sensor 22 and the pressing plate 23 until the Portland cement test block 25 is pressed onto the Portland cement test block 25 until the pressure value displayed on the pressure sensor 22 reaches the specified value, and observe whether cracks appear on the Portland cement test block 25 after corrosion, then it can be inferred whether the Portland cement test block 25 can ensure the specified strength after corrosion, which facilitates the pressure detection of the Portland cement test block 25. The material of the box body 3 is corrosion-resistant stainless steel.

[0026] Embodiment 2

[0027] Based on Embodiment 1, the box body 3 further includes a heater 24, and the output end of the heater 24 is located in the chamber of the box body 3; the sulfate solution in the chamber of the box body 3 is heated by the heater 24 to promote the corrosion of the Portland cement specimen 25 by the sulfate solution, further reducing the detection time.

[0028] The three-jaw chuck 4, thrust bearing 7, chain 11, blower 16, hydraulic cylinder 20, pressure sensor 22 and heater 24 of the high sulfate-resistant Portland cement corrosion resistance detection device of the present utility model are all purchased on the market. Those skilled in the art only need to install and operate according to the attached operation manual, without the need for creative labor from those skilled in the art.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A highly sulfate-resistant silicate cement corrosion resistance detection device, comprising a base plate (1), a bracket (2) and a box (3), wherein the box (3) is fixedly mounted on the upper end of the base plate (1) through the bracket (2), a chamber is arranged in the box (3), and the upper end of the box (3) is open; characterized in that: It also comprises a three-jaw chuck (4) and a moving mechanism, wherein the three-jaw chuck (4) is mounted on the moving mechanism, and the moving mechanism is used to move the three-jaw chuck (4).

2. A highly sulfate-resistant silicate cement corrosion resistance detection device as claimed in claim 1, characterized in that: The moving mechanism comprises a cylinder (5), a push rod (6), a thrust bearing (7), a sliding shaft (8), a sleeve (9) and a driving mechanism. The cylinder (5) is fixedly mounted on the upper end of the base plate (1). The output end of the cylinder (5) is provided with a push rod (6). The thrust bearing (7) is fixedly mounted on the upper end of the push rod (6). The lower part of the sliding shaft (8) is rotatably mounted on the thrust bearing (7). The three-jaw chuck (4) is fixedly mounted on the upper end of the sliding shaft (8). The sleeve (9) is rotatably mounted on the box (3). The middle part of the sliding shaft (8) is slidably connected with the sleeve (9) up and down. The sliding shaft (8) is provided with a keyway. The sleeve (9) is provided with a spline. The driving mechanism is mounted on the box (3). The driving mechanism is used to drive the sleeve (9) to rotate.

3. A highly sulfate-resistant silicate cement corrosion resistance detection device as claimed in claim 2, characterized in that: The driving mechanism comprises a sprocket A (10), a chain (11), a sprocket B (12), a driving shaft (13), a fixing plate (14) and a driving motor (15); the sprocket A (10) is fixedly sleeved on the sleeve (9); the sprocket A (10) is transmission-connected to the sprocket B (12) via the chain (11); the sprocket B (12) is fixedly mounted on the lower end of the driving shaft (13); the driving shaft (13) is rotatably mounted on the fixing plate (14); the fixing plate (14) is fixedly mounted on the box (3); the upper end of the driving shaft (13) is connected to the output end of the driving motor (15); and the driving motor (15) is fixedly mounted on the box (3).

4. A highly sulfate-resistant silicate cement corrosion resistance detection device as claimed in claim 1, characterized in that: It also comprises a blower (16), an annular tube (17) and a plurality of exhaust pipes (18); the blower (16) is fixedly mounted on the box body (3); the annular tube (17) is fixedly mounted at the lower part of the chamber of the box body (3); the output end of the annular tube (17) is provided with a plurality of exhaust pipes (18); the output end of the blower (16) is provided with an air supply pipe; the output end of the blower (16) is connected to the annular tube (17) via the air supply pipe.

5. A highly sulfate-resistant silicate cement corrosion resistance detection device as claimed in claim 1, characterized in that: The invention also comprises a hanging frame (19), a hydraulic cylinder (20), a pressure rod (21), a pressure sensor (22) and a pressure plate (23), wherein the hydraulic cylinder (20) is fixedly mounted on the upper end of the hanging frame (19), the pressure rod (21) is slidably mounted on the hanging frame (19), the upper end of the pressure rod (21) is connected to the output end of the hydraulic cylinder (20), the pressure sensor (22) is fixedly mounted on the lower end of the pressure rod (21), and the pressure plate (23) is fixedly mounted on the lower end of the pressure sensor (22).

6. A highly sulfate-resistant silicate cement corrosion resistance detection device as claimed in claim 1, characterized in that: The box body (3) also includes a heater (24), and the output end of the heater (24) is located in the chamber of the box body (3).

7. A highly sulfate-resistant silicate cement corrosion resistance detection device as claimed in claim 1, characterized in that: The box body (3) is made of corrosion-resistant stainless steel.

Images