Desulfurizing tower slurry multifunctional online detection device and method

Abstract

The invention relates to the technical field of environment-friendly desulfurization, and particularly discloses a multifunctional online desulfurization tower slurry detection device and method.The multifunctional online desulfurization tower slurry detection device comprises a buffer tank, and a liquid inlet pipe and a liquid outlet pipe are arranged on the buffer tank; the liquid conveying assembly comprises a plurality of branch pipes, each branch pipe is provided with a first valve body, one end of each branch pipe is communicated with the liquid inlet pipe, the other end of each branch pipe is used for being communicated with the slurry pond, and the branch pipes are connected to different heights of the slurry pond respectively; the detection assembly is arranged on the liquid outlet pipe; the second valve body is arranged on the liquid outlet pipe; and the extrusion assembly comprises a pressing plate and a first spring, and the pressing plate is arranged in the buffer box in a sliding mode. Sampling detection can be sequentially carried out on slurry at different depths of the slurry pool, and the slurry pool is used for diagnosing the layering condition of the slurry or local reaction abnormity or judging the uniformity of the slurry; and the slurry at a plurality of detection points can be detected after being mixed, and the device can be suitable for continuous monitoring under conventional working conditions.

Description

Technical Field

[0001] This application relates to the field of environmental desulfurization technology, and in particular to a multifunctional online detection device and method for desulfurization tower slurry. Background Technology

[0002] Desulfurization towers are mainly used for flue gas desulfurization. In common wet desulfurization technologies, such as the limestone-gypsum method, the slurry plays a crucial role. The slurry is typically formed by mixing limestone (calcium carbonate) with water and is used to absorb sulfur dioxide from the flue gas. The structure of a desulfurization tower includes the absorption tower body, circulating pump, spray layer, oxidation air pipe, agitator, demister, etc. The slurry is mainly stored at the bottom of the absorption tower, i.e., in the slurry pool or reaction tank, and is transported to the spray layer by the circulating pump. It is sprayed down and comes into contact with the rising flue gas to complete the absorption process.

[0003] In desulfurization towers, the slurry mainly exists in the slurry pool at the bottom of the absorption tower, as well as in the circulation pipes and spray layer. However, the spray layer primarily sprays the slurry into droplets and does not retain large amounts of slurry for extended periods. Therefore, the main slurry storage location is the slurry pool, requiring monitoring of the slurry's pH value, density, and temperature. pH value affects desulfurization efficiency; if the pH is too low, limestone dissolution is insufficient, leading to decreased desulfurization efficiency; if the pH is too high, scaling can easily occur on the equipment. Density monitoring is necessary because the slurry concentration affects the reaction rate and solid content; excessive density indicates too many solid particles, requiring removal or adjustment. Temperature affects the reaction rate and the equipment's operating status. Therefore, these parameters directly impact desulfurization efficiency and system operational stability.

[0004] Currently, the above parameters are tested by directly installing pH meters, density meters, and thermometers on the sidewalls of the slurry tank, and then directly measuring the pH, density, and temperature of the slurry. If only one set of testing instruments is used, it is only possible to test one location in the slurry tank, resulting in a large deviation, and it is impossible to test the slurry at different depths in the slurry tank to determine the uniformity of the slurry. If testing instruments are set at multiple different points, it will increase the complexity of the testing system, and the subsequent cleaning of the testing ends of the instruments will be a large workload. Summary of the Invention

[0005] In order to improve the accuracy of test results while reducing the number of testing instruments, this application provides a multifunctional online testing device and method for desulfurization tower slurry.

[0006] Firstly, this application provides a multifunctional online detection device for desulfurization tower slurry, employing the following technical solution: A multifunctional online detection device for desulfurization tower slurry includes a buffer tank, on which an inlet pipe and an outlet pipe are provided, and a first pump body is provided on the inlet pipe; The infusion assembly includes multiple branch pipes, each of which is equipped with a first valve body. One end of each branch pipe is connected to an inlet pipe, and the other end of each branch pipe is connected to a slurry tank. The multiple branch pipes are respectively connected to different heights of the slurry tank. The detection components, mounted on the liquid outlet tube, include a pH meter, a density meter, and a thermometer; The second valve body is installed on the outlet pipe and is used to control the opening and closing of the outlet pipe; The extrusion assembly includes a pressure plate and a first spring. The pressure plate is vertically slidably disposed in a buffer tank, with its side wall abutting against the inner wall of the buffer tank. The inlet pipe and outlet pipe are both located below the pressure plate. The first spring connects the pressure plate and the inner wall of the buffer tank. The first spring causes the pressure plate to tend to slide towards the side closer to the outlet pipe. When the second valve body closes the outlet pipe, and slurry is injected into the buffer tank through the inlet pipe, the injected slurry pushes the pressure plate upward and overcomes the elastic force of the first spring.

[0007] By adopting the above technical solution, multiple branch pipes are connected to different heights in the slurry tank, thus enabling the acquisition of slurry samples at different depths within the tank, which helps to comprehensively assess the slurry's condition. Through multiple sampling and testing, the uniformity of the slurry in the tank can be determined, and the stirring parameters can be adjusted based on the test results. Because multiple branch pipes are installed, a single testing unit can be used to test slurry in different areas, making it more convenient. Furthermore, when the first valve on each branch pipe is opened, slurry from multiple depths within the tank can be extracted, mixed, and then tested, outputting the average parameters of the slurry in the tank, suitable for scenarios requiring overall control of desulfurization efficiency. The slurry first flows into the buffer tank and then... The detection is performed through the inlet and outlet pipes, which reduces the wear and corrosion caused to the sensors by direct exposure to the highly turbulent and particulate-rich environment inside the desulfurization tower, thus helping to extend the equipment's lifespan. The pressure plate is always pressed against the surface of the slurry in the buffer tank under the action of the first spring, which can squeeze the slurry and eliminate some of the foam in the slurry, thereby reducing the interference of foam on the detection results. The pressure plate is vertically slidable, so the pressure exerted by the pressure plate on the slurry comes partly from its own weight and partly from the elastic force of the first spring, which helps to enhance the pressure effect on the slurry and thus enhance the foam elimination effect. In addition, when the pressure plate slides down, it can also scrape off the debris attached to the inner wall of the buffer tank, thereby achieving self-cleaning of the inner wall of the buffer tank.

[0008] Optionally, a cleaning component is provided on one side of the buffer tank. The cleaning component includes a water tank, a top plate, an inlet pipe, an outlet pipe, and a water storage box. The top plate is vertically slidably disposed in the water tank. The side wall of the top plate abuts against the inner wall of the water tank. A water storage cavity for storing water is formed between the bottom wall of the top plate and the inner wall of the water tank. A temporary storage cavity for storing water is formed between the top wall of the pressure plate and the inner wall of the buffer tank. One end of the inlet pipe is connected to the water storage cavity, and the other end of the inlet pipe is connected to the temporary storage cavity. One end of the outlet pipe is connected to the temporary storage cavity, and the other end of the outlet pipe is connected to the water storage box. The water storage box is disposed in the outlet pipe, and a drain hole is provided on the side of the water storage box near the detection component.

[0009] By adopting the above technical solution, the water storage chamber in the water tank and the temporary storage chamber in the buffer tank work together to realize the storage and transportation of water flow, ensuring that the cleaning water can smoothly reach the water storage box and then be sprayed outward, thereby effectively rinsing the detection end of the detection component. After the detection is completed, the detection component can be automatically cleaned to avoid the residual impurities in the slurry affecting the accuracy of subsequent detection results. The discharge of the cleaning water in the temporary storage chamber is driven by the pressure plate, so there is no need to set up an additional power source. Since the pressure plate is set in the buffer tank, the slurry is below the pressure plate and the cleaning water is above the pressure plate. Therefore, when the pressure plate slides down, the cleaning water in the temporary storage chamber can also clean the inner wall of the buffer tank, thereby further enhancing the cleaning effect.

[0010] Optionally, a limiting component is provided between the water tank and the top plate. The limiting component includes a toothed plate and a second spring. The toothed plate is vertically arranged and horizontally slidably connected to the water tank. There are two toothed plates, and the teeth on the two toothed plates face each other. The second spring is connected between the water tank and the toothed plates so that when the top plate slides down, it pushes the two toothed plates to slide away from each other.

[0011] By adopting the above technical solution, the toothed plate restricts the top plate, so that without the application of external force, the top plate can only slide downward under its own weight and cannot move upward. Therefore, when the pressure plate slides upward, it squeezes the water in the temporary storage chamber. The water in the temporary storage chamber cannot flow into the water tank through the water inlet pipe. The water in the temporary storage chamber can only be discharged outward through the water outlet pipe, thereby ensuring the drainage volume and drainage pressure of the water outlet pipe, thus ensuring the rinsing and cleaning effect on the detection components.

[0012] Optionally, the water storage box is provided with a mounting shell outside the drain hole. The mounting shell has a water permeable hole. A filter screen is provided on the mounting shell outside the water permeable hole. An opening and closing assembly is provided in the mounting shell. The opening and closing assembly includes a first baffle, a second baffle, a retaining spring, and a double-ended screw. The threads at both ends of the double-ended screw have opposite directions. The double-ended screw is rotatably connected to the mounting shell. The first baffle and the second baffle are both slidably connected to the mounting shell. The first baffle and the second baffle are threadedly connected to the two ends of the double-ended screw. The retaining spring is connected between the first baffle and the second baffle so that the first baffle is pressed against the drain hole and the second baffle is pressed against the water permeable hole.

[0013] By adopting the above technical solution, under normal conditions, the first baffle closes the drain hole and the second baffle closes the permeable hole, preventing water from draining from the water storage box. Water is only drained when cleaning is required, reducing the consumption of cleaning water. Simultaneously, because the permeable hole is closed, slurry in the outlet pipe cannot enter it, reducing the possibility of blockage. The filter screen further prevents blockage. When slurry is injected into the buffer tank, causing the pressure plate to slide upwards, the water in the temporary storage chamber is compressed, increasing the water pressure in the outlet pipe. This causes the first baffle to slide outwards, opening the drain hole. The sliding of the first baffle causes the double-ended screw to rotate, driving the second baffle to slide inwards, opening the permeable hole. At this time, the water in the water tank can be discharged outward through the drain hole and the water permeable hole, thereby flushing and cleaning the detection end of the detection component. The opening and closing component is designed so that the water permeable hole is closed under normal conditions, and automatically opens during the cleaning process. While ensuring the water spraying cleaning function, it prevents external slurry from entering the water permeable hole, ensuring that the water permeable hole is unobstructed. Among them, the first baffle mainly plays a driving role. The first baffle can slide outward under the action of water pressure. The second baffle mainly controls the opening and closing of the water permeable hole. Therefore, the setting of the two baffles not only achieves the function of controlling the opening and closing, but also ensures the direction of drainage. The baffle setting does not obstruct the water flow, which helps to ensure the cleaning effect of the sprayed water on the detection component.

[0014] Optionally, the bottom wall of the buffer tank is inclined downward from both sides to the center, and a liquid outlet is provided at the bottom of the buffer tank between the two inclined bottom walls, and the liquid outlet is connected to the liquid outlet pipe.

[0015] By adopting the above technical solution, the inclined bottom wall can guide the slurry at the bottom of the buffer tank to converge towards the center, avoiding the residue of slurry and solid particles at the bottom of the buffer tank, thereby reducing the impact of the debris remaining in the buffer tank on the subsequent test results.

[0016] Optionally, the pressure plate is provided with a pushing assembly, which includes a slider, a push block, a support rod, a third spring, and a fourth spring. The slider is horizontally slidably connected to the pressure plate, the third spring is connected between the slider and the pressure plate, the support rod is vertically slidably inserted through the slider, the push block is fixedly connected to the bottom end of the support rod, the bottom of the push block is inclined and adapted to the inclined bottom wall of the buffer box, and the fourth spring is connected between the slider and the push block so that when the pressure plate slides down, the fourth spring is compressed, and the elastic force applied by the fourth spring to the push block causes the push block to slide downward along the inclined bottom wall of the buffer box.

[0017] By adopting the above technical solution, when the pressure plate slides down, the fourth spring is compressed and generates elastic force. This elastic force pushes the push block to slide down along the inclined bottom wall, thereby pushing the debris accumulated on the inclined bottom wall of the buffer box downwards, which can further reduce the residue inside the buffer box. When the pressure plate slides down, the third spring causes the slider to reset. The slider drives the push block to slide towards the edge of the buffer box through the support rod to achieve reset.

[0018] Optionally, a connecting plate is provided at the top of the support rod, and the top of the support rod is horizontally slidably connected to the connecting plate. A bag body is provided on the top side of the pressure plate. The bag body is elastic, and a sealed receiving cavity is formed between the bag body and the pressure plate. The top of the connecting plate and the support rod are both located in the receiving cavity, and the connecting plate and the inner wall of the bag body are fixedly connected.

[0019] By adopting the above technical solution, the bag contains air and is in a bulging state. Therefore, the bag is subjected to the water pressure in the temporary storage chamber. The connecting plate can increase the area of ​​water pressure action, so that the bag and the connecting plate will tend to move downward under the water pressure. This tendency generates downward pressure on the push block through the support rod, making it easier for the push block to slide downward and clean the inclined bottom wall of the buffer box. In addition, the bag is covered on the outside of the support rod, and the bag can separate the upper and lower sides of the pressure plate, so that the water in the temporary storage chamber cannot flow into the lower part of the pressure plate through the sliding groove of the slider on the pressure plate, thus ensuring the separation effect of the pressure plate.

[0020] Optionally, the bottom of the push block is provided with an avoidance groove.

[0021] By adopting the above technical solution, the avoidance groove can avoid solid particles under the pusher block, so that the inclined bottom wall of the pusher block can smoothly abut against the inclined bottom wall of the buffer box, thereby ensuring the smooth sliding of the pusher block along the inclined bottom wall of the buffer box and improving the reliability of the device operation.

[0022] Optionally, a mixing assembly is provided at the liquid inlet pipe. The mixing assembly includes a motor, a rotating rod, and a stirring blade. The motor is located on the outer wall of the liquid inlet pipe. The rotating rod is coaxially fixedly connected to the end of the motor's output shaft. The stirring blade is located on the rotating rod and is situated in the liquid inlet pipe.

[0023] By adopting the above technical solution, the motor drives the rotating rod to rotate, and the rotating rod drives the stirring blade to fully stir the slurry, so that the slurry is kept in a uniform state before entering the buffer tank, thereby ensuring the accuracy of subsequent test results.

[0024] Secondly, this application provides a method, which adopts the following technical solution: A method, employing the multifunctional online detection device for desulfurization tower slurry as described in any of the above claims, includes the following steps: a. Open the first valve on the first branch pipe. The slurry in the slurry tank flows into the buffer tank through the first branch pipe and the inlet pipe. The slurry flowing into the buffer tank pushes the pressure plate up. The pressure plate is always pressed against the liquid surface at the top of the slurry to eliminate foam in the slurry. After a period of time, close the first valve on the first branch pipe. b. Open the second valve body, the first spring drives the pressure plate to move down, the pressure plate squeezes the slurry in the buffer tank into the outlet pipe, the detection component in the outlet pipe detects the pH value, density and temperature of the slurry, and closes the second valve body after the detection is completed; c. Open the first valve on the second branch pipe. The slurry in the slurry tank flows into the buffer tank through the second branch pipe and the inlet pipe. The slurry flowing into the buffer tank pushes the pressure plate up. The pressure plate is always pressed against the liquid surface at the top of the slurry to eliminate foam in the slurry. After a period of time, close the first valve on the second branch pipe. d. Open the second valve body. The first spring drives the pressure plate to move down. The pressure plate squeezes the slurry in the buffer tank into the outlet pipe. The detection component in the outlet pipe detects the pH value, density and temperature of the slurry. After the detection is completed, close the second valve body.

[0025] By adopting the above technical solution, opening the first valve body on different branch pipes allows slurry to be extracted from different depths in the slurry pool, ensuring that the detection points cover multiple depth positions and improving the comprehensiveness and accuracy of the detection results. When the slurry flows into the buffer tank, it pushes the pressure plate upward, and the pressure plate is always pressed against the top liquid surface of the slurry, effectively eliminating foam in the slurry and reducing the impact of foam on the detection results.

[0026] In summary, this application includes the following beneficial technical effects: 1. This device can independently sample and test slurry at different depths in the slurry pool to diagnose slurry stratification or local abnormal reactions, or to determine the uniformity of the slurry; it can also mix slurry from multiple test points before testing, making it suitable for continuous monitoring under normal operating conditions.

[0027] 2. During the process of injecting the slurry into the buffer tank, the slurry pushes the pressure plate upward, and the pressure plate is always pressed against the liquid surface at the top of the slurry, which can eliminate some of the foam in the slurry, thereby reducing the impact of the presence of foam on subsequent testing.

[0028] 3. During the independent testing of slurry at multiple depths, after each test and while injecting new slurry, the pressure plate moves upward to squeeze the water in the temporary storage chamber. The water in the temporary storage chamber flows into the water storage box through the water outlet pipe and is then discharged to flush and clean each testing end of the testing component. This reduces the amount of slurry adhering to the testing ends and ensures the testing effect. The cleaning process is carried out simultaneously with the injection of new slurry, which helps to improve testing efficiency.

[0029] 4. The opening and closing component controls the opening and closing state of the permeable holes. Under normal conditions, the permeable holes are closed, so the slurry cannot enter them. When cleaning is required, the pressure plate moves up to squeeze the water in the temporary storage chamber. Under the action of water pressure, the opening and closing component can be activated, opening the permeable holes and draining the water. Therefore, the permeable holes are not prone to clogging, and the setting of the opening and closing component does not easily change the drainage direction, which helps to ensure the flushing and cleaning effect of the discharged water on the detection component. The opening and closing component is set inside the mounting shell, which helps to ensure the normal operation of the opening and closing component and prevents it from getting stuck. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional view of an embodiment of this application; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view used in this application embodiment to illustrate the internal structure of the buffer box; Figure 5 yes Figure 2 Enlarged view of point B in the middle; Figure 6 This is a cross-sectional view of the water tank in an embodiment of this application; Figure 7 yes Figure 3 Enlarged diagram of point C in the middle.

[0031] Reference numerals: 1. Buffer tank; 11. Inlet pipe; 12. Outlet pipe; 13. Temporary storage chamber; 14. Outlet; 2. Branch pipe; 21. First pump body; 22. First valve body; 3. Detection assembly; 4. Second valve body; 5. Squeezing assembly; 51. Pressure plate; 511. Slide groove; 52. First spring; 6. Cleaning assembly; 61. Water tank; 611. Water storage chamber; 612. Receiving groove; 62. Top plate; 621. Holding rod; 622. Connecting pipe; 6221. End cap; 63. Water inlet pipe; 64. Water outlet pipe; 65. Water storage box; 651. Drain hole; 7. Limiting assembly; 71. Toothed plate; 711. Guide rod; 72. Second spring; 8. Mounting shell; 81. Water permeable hole; 82. Connecting rod; 9. Opening and closing assembly; 91. First baffle; 92. Second baffle; 93. Abutment spring; 94. Double-ended screw; 10. Pushing assembly; 101. Slider; 102. Push block; 1021. Clearance groove; 103. Support rod; 104. Third spring; 105. Fourth spring; 15. Connecting plate; 151. Guide column; 1511. Limiting plate; 152. Limiting rod; 16. Bag body; 161. Receiving cavity; 17. Mixing assembly; 171. Motor; 172. Rotating rod; 173. Stirring blade; 18. Slurry tank; 19. Return pipe; 20. Second pump body; 23. Protective sleeve. Detailed Implementation

[0032] The following combination Figures 1-7 This application will be described in further detail.

[0033] This application discloses a multifunctional online detection device for desulfurization tower slurry. (Refer to...) Figure 1 and Figure 2 The desulfurization tower slurry multifunctional online detection device includes a buffer tank 1, which is vertically positioned. An inlet pipe 11 and an outlet pipe 12 are fixedly connected to the buffer tank 1, both located on the bottom wall of the buffer tank 1. A first pump body 21 is fixedly connected to the inlet pipe 11. A liquid delivery assembly is located on one side of the buffer tank 1, comprising multiple branch pipes 2. One end of each branch pipe 2 is connected to the slurry pool 18 at the bottom of the desulfurization tower, and the other end is connected to the inlet pipe 11. Each branch pipe 2 is equipped with a first valve body 22, which controls the opening and closing of the branch pipe 2. Each branch pipe 2 is connected to different heights in the slurry pool 18, thus enabling sampling and testing of the slurry at different depths within the slurry pool 18 to determine whether the slurry uniformity meets the standards.

[0034] Reference Figure 3A detection component 3 is installed on the outlet pipe 12, comprising a pH meter, a density meter, and a thermometer. The pH meter, density meter, and thermometer are all fixedly installed on the wall of the outlet pipe 12, and their detection ends are all located inside the outlet pipe 12, thus enabling the detection of the pH value, density, and temperature of the slurry flowing into the outlet pipe 12. (Refer to...) Figure 2 The end of the outlet pipe 12 away from the buffer tank 1 is connected to the return pipe 19. The return pipe 19 is connected to the interior of the slurry tank 18. A second pump body 20 is installed on the return pipe 19, so that the slurry discharged from the outlet pipe 12 can be transported back to the slurry tank 18, reducing the waste of slurry.

[0035] Reference Figure 3 and Figure 4 A second valve body 4 is also provided on the outlet pipe 12. The second valve body 4 is a slide gate valve and is used to control the opening and closing of the outlet pipe 12. A compression assembly 5 is provided in the buffer box 1. The compression assembly 5 includes a pressure plate 51 and a first spring 52. The pressure plate 51 is slidably connected to the inside of the buffer box 1 in the vertical direction. The first spring 52 is fixedly connected between the top wall of the pressure plate 51 and the inner wall of the top of the buffer box 1. There are four first springs 52, which are located at the four corners of the pressure plate 51. The first springs 52 are in a compressed state, so under normal conditions, the first springs 52 press the pressure plate 51 against the bottom of the buffer box 1. Initially, the second valve body 4 closes the outlet pipe 12. After the slurry in the branch pipe 2 flows into the buffer tank 1 through the inlet pipe 11, as more slurry is injected into the buffer tank 1, the slurry pushes the pressure plate 51 upwards. When the pressure plate 51 slides upwards, it overcomes the elastic force of the first spring 52, thus ensuring that the pressure plate 51 remains pressed against the surface of the slurry in the buffer tank 1, continuously squeezing the slurry and reducing foam, which helps ensure the accuracy of subsequent testing. After injecting a certain amount of slurry into the buffer tank 1, the injection is stopped; then the second valve body 4 is opened, and under the action of the first spring 52, the pressure plate 51 slides downwards, squeezing the slurry in the buffer tank 1 into the outlet pipe 12. The discharged slurry is then tested by the detection component 3.

[0036] The size of the pressure plate 51 is adapted to the size of the buffer box 1, so that the side wall of the pressure plate 51 abuts against the inner side wall of the buffer box 1. This allows the pressure plate 51 to clean up the debris adhering to the inner wall of the buffer box 1 during the downward movement, thereby reducing the amount of debris adhering to the inner wall of the buffer box 1 and preventing these debris from mixing with the slurry injected through the next branch pipe 2, causing cross-contamination and affecting the accuracy of subsequent testing.

[0037] Reference Figure 2The aforementioned detection device can not only sample and test the slurry at different heights in the slurry tank 18 to determine whether the slurry at different depths in the slurry tank 18 is uniformly mixed, but it can also simultaneously extract slurry from multiple depths in the slurry tank 18, mix these slurries in the inlet pipe 11, and then test them to determine whether the overall slurry meets the requirements. To enhance the mixing effect of the slurry introduced into the multiple branch pipes 2, a mixing component 17 is provided at the inlet pipe 11.

[0038] Reference Figure 5 The mixing assembly 17 includes a motor 171, a rotating rod 172, and a stirring blade 173. The motor 171 is fixedly connected to the outer wall of the inlet pipe 11, and one end of the rotating rod 172 is coaxially fixedly connected to the output shaft of the motor 171. The stirring blade 173 is fixedly connected to the rotating rod 172 and is located inside the inlet pipe 11. Therefore, the motor 171 drives the rotating rod 172 and the stirring blade 173 to rotate, which stirs the slurry in the inlet pipe 11, thereby enhancing the mixing effect of the slurry and making the test results more accurate.

[0039] Reference Figure 2 Since the detection ends of the pH meter, density meter and thermometer are all immersed in the slurry inside the outlet tube 12, some slurry will adhere to the detection ends after long-term use, affecting the detection effect. In order to reduce this effect, a cleaning component 6 for cleaning the detection ends of the instruments is provided on one side of the buffer box 1.

[0040] Reference Figure 2 , Figure 3 and Figure 6 The cleaning component 6 includes a water tank 61, a top plate 62, an inlet pipe 63, an outlet pipe 64, and a water storage box 65. The water tank 61 is located outside the buffer tank 1 and is vertically oriented. The top plate 62 is slidably connected to the water tank 61 in a vertical direction, and its dimensions are adapted to the dimensions of the water tank 61, such that the sidewall of the top plate 62 abuts against the inner sidewall of the water tank 61. A water storage cavity 611 is formed between the bottom wall of the top plate 62 and the inner wall of the water tank 61, and a temporary storage cavity 13 is formed between the top wall of the pressure plate 51 and the inner wall of the buffer tank 1. Both the water storage cavity 611 and the temporary storage cavity 13 are used for water storage. The water inlet pipe 63 is fixedly connected between the water tank 61 and the buffer tank 1. One end of the water inlet pipe 63 is connected to the bottom of the water storage chamber 611, and the other end of the water inlet pipe 63 is connected to the top of the temporary storage chamber 13. Therefore, after water is filled into the water tank 61, under the gravity of the top plate 62, the top plate 62 presses against the water surface. Under the squeezing action of the top plate 62, the water in the water tank 61 can flow into the temporary storage chamber 13 through the water inlet pipe 63.

[0041] Reference Figure 3 and Figure 7The water outlet pipe 64 is fixedly connected between the buffer tank 1 and the water storage box 65. One end of the water outlet pipe 64 is connected to the top of the temporary storage chamber 13, and the other end is connected to the water storage box 65. The water storage box 65 is fixedly connected to the inner wall of the liquid outlet pipe 12, and multiple drainage holes 651 are provided on the side of the water storage box 65 near the detection component 3. Therefore, when the pressure plate 51 slides upward, the pressure plate 51 can squeeze the water in the temporary storage chamber 13, so that the water in the temporary storage chamber 13 flows out through the water outlet pipe 64 into the water storage box 65, and then sprays outward through the drainage holes 651. The sprayed water can clean the detection ends of the pH meter, density meter and thermometer, thereby reducing the slurry adhering to the detection ends and ensuring the accuracy of the detection results.

[0042] When the pressure plate 51 slides upward, it can squeeze the water in the temporary storage chamber 13, allowing the water in the temporary storage chamber 13 to flow into the inlet pipe 63 and the outlet pipe 64 respectively. In order to ensure that all the water in the temporary storage chamber 13 flows into the water storage box 65 through the outlet pipe 64, thereby enhancing the flushing and cleaning effect on the detection component 3, refer to... Figure 6 A limit component 7 is provided between the water tank 61 and the top plate 62.

[0043] Reference Figure 6 The limiting component 7 includes a toothed plate 71 and a second spring 72. Two toothed plates 71 are vertically arranged and symmetrically positioned, with the teeth of the two plates facing towards each other. Receiving grooves 612 are provided on the side walls of both sides of the water tank 61, and the toothed plates 71 are horizontally slidably connected to the receiving grooves 612. Two second springs 72 are provided, each corresponding to one of the two toothed plates 71, and are fixedly connected between the toothed plates 71 and the inner walls of the receiving grooves 612. Therefore, the top plate 62 presses against the water surface in the water tank 61. As the water level in the water tank 61 decreases, the top plate 62 slides downward under the action of gravity. The top plate 62 first pushes the two toothed plates 71 to slide towards the side that is far apart from each other, so that the toothed plates 71 avoid the downward sliding process of the top plate 62. After the top plate 62 passes over the teeth on the toothed plates 71, the second spring 72 drives the two toothed plates 71 to slide towards the side that is close to each other, so that the toothed plates 71 press against the top plate 62, restricting the upward sliding of the top plate 62. Therefore, the top plate 62 can only slide freely downward under the action of gravity, and the water in the water inlet pipe 63 cannot push the top plate 62 upward, thereby restricting the sliding direction of the top plate 62. This allows the water in the temporary storage chamber 13 to flow into the water storage box 65 through the water outlet pipe 64, thereby enhancing the water spray cleaning effect. Furthermore, the bottom walls on both sides of the top plate 62 are provided with inclined surfaces, so that the top plate 62 can more easily push the toothed plates 71 to slide when it slides down.

[0044] Reference Figure 2It should be noted that the water used to clean the detection component 3 can flow into the outlet pipe 12 after cleaning, and then flow back to the slurry tank 18 through the return pipe 19. Since the slurry tank 18 has a large volume, while the detection device is relatively small in volume compared to the slurry tank 18, the water used for cleaning is unlikely to have a significant impact on the performance of the slurry even if it is introduced into the slurry tank 18.

[0045] Reference Figure 6 Guide rods 711 are fixedly connected to the opposite sides of the two toothed plates 71. These guide rods 711 slide horizontally through the sidewall of the receiving groove 612, with the end of the guide rod 71 away from the toothed plates 71 extending out of the water tank 61. When it is necessary to move the top plate 62 upwards and add water to the water tank 61, the guide rods 711 can be slid outwards, causing the two toothed plates 71 to slide towards the opposite sides. Once the toothed plates 71 are slid to the side away from the top plate 62, the top plate 62 can slide upwards without the restriction of the toothed plates 71. A gripping rod 621 is fixedly connected to the top wall of the top plate 62, facilitating the operator to lift the top plate 62 upwards. A connecting pipe 622 is also fixedly installed on the top plate 62. The bottom end of the connecting pipe 622 communicates with the water storage chamber 611, and the top end of the connecting pipe 622 is threadedly connected to an end cap 6221. Under normal conditions, the end cap 6221 seals the top of the connecting pipe 622; when water needs to be added to the water tank 61, simply unscrew the end cap 6221 and inject the water through the connecting pipe 622.

[0046] Reference Figure 7 Furthermore, a mounting shell 8 is fixedly connected to the outer wall of the water storage box 65. The mounting shell 8 covers the outside of the drain hole 651, and a cavity is provided inside the mounting shell 8. A water-permeable hole 81 is opened on the wall surface of the mounting shell 8 away from the drain hole 651, so that water in the water storage box 65 can flow into the mounting shell 8 through the drain hole 651, and then spray out through the water-permeable hole 81 on the mounting shell 8 to rinse and clean the detection end of the detection component 3. A filter screen is fixedly connected to the outer side of the water-permeable hole 81 on the outer wall of the mounting shell 8 to reduce the possibility of clogging of the water-permeable hole 81.

[0047] An opening / closing assembly 9 for controlling the opening and closing of the water-permeable hole 81 is provided in the cavity inside the mounting shell 8. The opening / closing assembly 9 includes a first baffle 91, a second baffle 92, a retaining spring 93, and a double-ended screw 94. The double-ended screw 94 is rotatably connected to the inner wall of the mounting shell 8, and the threads at both ends of the double-ended screw 94 turn in opposite directions. A connecting rod 82 is also fixedly connected to the mounting shell 8, and the connecting rod 82 is parallel to the double-ended screw 94. Both the first baffle 91 and the second baffle 92 are slidably mounted on the connecting rod 82. The first baffle 91 is located on the side closer to the drain hole 651, and the second baffle 92 is located on the side closer to the water-permeable hole 81. The first baffle 91 is threadedly connected to one end of the double-ended screw 94, and the second baffle 92 is threadedly connected to the other end of the double-ended screw 94. A retaining spring 93 is fixedly connected between the first baffle 91 and the second baffle 92. The retaining spring 93 is in a compressed state, causing the first baffle 91 to press against the wall surface at the drain hole 651, and the second baffle 92 to press against the wall surface at the water permeable hole 81. The thread helix angle of the thread on the double-ended screw 94 is greater than the equivalent friction angle, therefore the thread on the double-ended screw 94 does not have self-locking capability, allowing the first baffle 91 to drive the double-ended screw 94 to rotate when it slides.

[0048] Reference Figure 3 and Figure 7 Under normal conditions, both the drain hole 651 and the water permeable hole 81 are in a closed state. Even if the top plate 62 applies pressure to the water in the water storage chamber 611 and forces the water in the water tank 61 into the temporary storage chamber 13, a portion of the water in the temporary storage chamber 13 is forced into the water outlet pipe 64. The water in the water outlet pipe 64 cannot push the first baffle 91 to slide outward due to insufficient pressure. When slurry is injected into the buffer tank 1, as the amount of slurry in the buffer tank 1 increases, the slurry will push the pressure plate 51 upward, causing the water in the temporary storage chamber 13 to be squeezed. Since water is incompressible and the limiting component 7 prevents the top plate 62 from sliding upward, the water in the temporary storage chamber 13 will be forcibly squeezed out through the water outlet pipe 64. The water at the end of the water outlet pipe 64 will flow into the water storage box 65, and then flow out through the drain hole 651, pushing the first baffle 91 to slide outward, opening the drain hole 651. When the first baffle 91 slides, it causes the double-headed screw 94 to rotate, so the second baffle 92 will slide towards the side closer to the first baffle 91, opening the water permeable hole 81. At this time, the water in the water outlet pipe 64 can flow into the water storage box 65, and the water in the water storage box 65 will then be discharged outward through the drain hole 651 and the water permeable hole 81, thereby flushing the detection end of the detection component 3. The opening and closing component 9 is designed so that water in the outlet pipe 64 can only be discharged when the pressure plate 51 slides upward, thus avoiding waste caused by continuous discharge of water from the outlet pipe 64.

[0049] Reference Figure 3During the downward movement of the pressure plate 51 in the buffer tank 1, the slurry in the buffer tank 1 can be squeezed downwards. The slurry is discharged through the outlet pipe 12 and tested. In order to prolong the slurry's falling time so that the detection component 3 can perform more thorough testing of the slurry, the opening at the connection between the outlet pipe 12 and the buffer tank 1 should not be too large. Since the slurry contains some solid particles, these solid particles are not completely discharged through the outlet pipe 12 during the downward movement of the pressure plate 51. The solid particles remaining in the buffer tank 1 will mix with the slurry subsequently injected into the buffer tank 1, causing cross-contamination and affecting the results of the next test. To reduce this effect, the bottom wall of the buffer tank 1 is inclined, with the two bottom walls of the buffer tank 1 inclined in opposite directions, forming a V-shaped structure. An outlet 14 is provided at the bottom of the buffer tank 1 between the two inclined bottom walls, and the outlet 14 is connected to the outlet pipe 12. Therefore, solid particles in the buffer tank 1 can easily slide down the inclined bottom wall and then enter the outlet pipe 12 through the outlet 14, thereby reducing the amount of solid particles remaining inside the buffer tank 1.

[0050] Reference Figure 3 and Figure 4 The pressure plate 51 is also equipped with a pushing assembly 10 for pushing solid particles on the inclined bottom wall of the buffer box 1 downwards. Two sets of pushing assemblies 10 are provided, located on opposite sides of the pressure plate 51. Each pushing assembly 10 includes a slider 101, a pusher block 102, a support rod 103, a third spring 104, and a fourth spring 105. A horizontally arranged groove 511 is formed in the pressure plate 51, and the slider 101 is horizontally slidably connected to the groove 511. The third spring 104 is fixedly connected between the slider 101 and the inner wall of the groove 511. A vertically oriented through hole is formed on the slider 101, and the support rod 103 slides vertically through the through hole. The pusher block 102 is fixedly connected to the bottom end of the support rod 103 and is located below the pressure plate 51. The bottom of the pusher block 102 is inclined, and the degree of inclination is the same as the degree of inclination of the bottom wall of the buffer box 1. The fourth spring 105 is fixedly connected between the bottom wall of the slider 101 and the top wall of the push block 102. The fourth spring 105 is sleeved on the outside of the support rod 103 and is in a compressed state.

[0051] As the pressure plate 51 slides downward, it squeezes the slurry in the buffer tank 1 downward. Simultaneously, the pressure plate 51 drives the pusher block 102 downward until it abuts against the inclined bottom wall of the buffer tank 1. Then, as the pressure plate 51 slides downward, the fourth spring 105 is further compressed, applying a vertical downward pressure to the pusher block 102. Since both the bottom of the pusher block 102 and the bottom wall of the buffer tank 1 are inclined, the component of this vertical pressure along the inclined bottom wall drives the pusher block 102 to slide downward, thus pushing debris on the inclined bottom wall of the buffer tank 1 downward into the outlet pipe 12, further reducing debris remaining at the bottom of the buffer tank 1. During the downward sliding of the pusher block 102 along the inclined bottom wall, the third spring 104 is stretched. Subsequently, as the pressure plate 51 slides upward, the third spring 104 drives the slider 101 to slide back to the edge of the pressure plate 51 for resetting.

[0052] The bottom of the push block 102 is provided with a clearance groove 1021. Therefore, if there are solid particles remaining below the push block 102 during the downward movement of the push block 102, these solid particles can enter the clearance groove 1021, so that the inclined bottom wall of the push block 102 can smoothly abut against the inclined bottom wall of the buffer box 1, thereby facilitating the smooth downward movement of the push block 102 along the inclined bottom wall of the buffer box 1.

[0053] An elastic protective sleeve 23 is fixedly connected between the bottom wall of the pressure plate 51 and the top wall of the push block 102. The two ends of the protective sleeve 23 are closed, and the protective sleeve 23 covers the outside of the fourth spring 105. Therefore, it can prevent particles in the slurry from entering between the pressure plate 51 and the push block 102 and affecting the sliding of the push block 102, and can also prevent the fourth spring 105 from being stuck.

[0054] In other embodiments, the lateral width of the push block 102 can be shortened and the length of the support rod 103 can be increased, thereby extending the sliding distance of the push block 102 along the inclined bottom wall of the buffer box 1 and ensuring the cleaning effect on the inclined bottom wall.

[0055] Reference Figure 4 In addition, a connecting plate 15 is provided at the top of the support rod 103, and the surface of the connecting plate 15 is horizontally positioned. A vertical guide post 151 is fixedly connected to the bottom wall of the connecting plate 15, and the guide post 151 slides through the pressure plate 51. A limit piece 1511 is fixedly connected to the bottom end of the guide post 151. A limit rod 152 is fixedly connected to the bottom wall of the connecting plate 15, and a limit hole is provided at the top of the support rod 103. The limit rod 152 slides horizontally through the limit hole. Therefore, when the support rod 103 slides horizontally with the slider 101, it will not cause the connecting plate 15 to slide horizontally; the connecting plate 15 only slides in the vertical direction.

[0056] Above the pressure plate 51, there is also an elastic bag 16. The top of the bag 16 is closed, and the bottom is open. The open end of the bag 16 is fixedly connected to the top wall of the pressure plate 51, so that a sealed receiving cavity 161 is formed between the bag 16 and the pressure plate 51. The tops of the connecting plate 15 and the support rod 103 are both located in the receiving cavity 161. The inner wall of the top of the bag 16 is fixedly connected to the top wall of the connecting plate 15, and the bag 16 stores air, causing the bag 16 to inflate. Therefore, the water in the temporary storage cavity 13 above the pressure plate 51 can squeeze the bag 16. Under the action of water pressure, the bag 16 and the connecting plate 15 can slide downward. The connecting plate 15 exerts vertical downward pressure on the push block 102 through the support rod 103, thereby further increasing the pressure on the push block 102, so that the push block 102 can slide more smoothly down the inclined bottom wall of the buffer box 1, and complete the cleaning of the solid particles remaining on the inclined bottom wall.

[0057] The implementation principle of the multifunctional online detection device for desulfurization tower slurry in this embodiment is as follows: When it is necessary to sample and detect the slurry at different depths in the slurry tank 18 to determine the uniformity of the slurry, the first pump body 21 and the first valve body 22 on the first branch pipe 2 are first opened. The first pump body 21 draws out the slurry at the corresponding depth of the first branch pipe 2 and then transports it to the buffer tank 1. Since the second valve body 4 is closed, the slurry entering the buffer tank 1 will push the pressure plate 51 to slide upward. The pressure plate 51 is always pressed against the top surface of the slurry, thereby reducing the foam in the slurry. In the initial state, the water storage chamber 611 inside the water tank 61 and the temporary storage chamber 13 inside the buffer tank 1 are both filled with water. During the upward sliding of the pressure plate 51, the pressure plate 51 squeezes the water in the temporary storage chamber 13, so that the water in the temporary storage chamber 13 flows into the water storage box 65 through the water outlet pipe 64 and then sprays outward to spray water to clean the detection end of the detection component 3.

[0058] After a certain amount of slurry is pumped in, the first pump body 21 and the first valve body 22 on the first branch pipe 2 are closed, and the pressure plate 51 stops moving upward. Then, the second valve body 4 is opened, and the first spring 52 in a compressed state drives the pressure plate 51 to move downward, squeezing the slurry out of the buffer tank 1. The squeezed-out slurry flows into the outlet pipe 12, and the pH value, density, and temperature of the slurry are detected by the detection component 3 in the outlet pipe 12. During the downward movement of the pressure plate 51, the volume of the temporary storage chamber 13 gradually increases, so the water in the water tank 61 can flow into the temporary storage chamber 13 inside the buffer tank 1 under the squeezing action of the top plate 62, so that the water in the temporary storage chamber 13 is always in a full state.

[0059] When the pressure plate 51 moves down, it can also drive the support rod 103 and the push block 102 to move down. The bottom of the push block 102 first abuts against the inclined bottom wall of the buffer box 1. Then, as the pressure plate 51 moves down, the fourth spring 105 is compressed. The fourth spring 105 drives the push block 102 to slide down along the inclined bottom wall of the buffer box 1, thereby pushing down the solid particles attached to the inclined bottom wall to avoid affecting the accuracy of subsequent test results.

[0060] Next, the first valve 22 on the first pump body 21 and the second branch pipe 2 is turned on, and the slurry at the corresponding depth of this branch pipe 2 is then transported to the buffer tank 1. The above process is repeated to complete the detection of this part of the slurry. Then, the first valve 22 on the first pump body 21 and the third branch pipe 2 is turned on again to transport the slurry at the corresponding depth to the buffer tank 1 to complete the detection of this part of the slurry.

[0061] This embodiment also discloses a method, including the following steps: Step a. Open the first valve body 22 on the first pump body 21 and the first branch pipe 2 to transport the slurry at the corresponding depth of the slurry pool 18 to the buffer tank 1. As the slurry is injected, the pressure plate 51 slides upward and is always pressed against the surface of the slurry to reduce foam in the slurry.

[0062] Step b. After injecting a certain amount of slurry into the buffer tank 1, close the first pump body 21 and the first valve body 22 on the first branch pipe 2, open the second valve body 4, and the first spring 52 drives the pressure plate 51 to slide downward. The pressure plate 51 squeezes the slurry in the buffer tank 1 into the outlet pipe 12. The detection component 3 in the outlet pipe 12 detects the pH value, density and temperature of the slurry.

[0063] Step c. Open the first valve body 22 on the first pump body 21 and the second branch pipe 2 to transport the slurry at the corresponding depth of the slurry pool 18 to the buffer tank 1, and the pressure plate 51 in the buffer tank 1 slides upward.

[0064] Step d. When the pressure plate 51 slides up, it squeezes the water in the temporary storage chamber 13, causing the water in the temporary storage chamber 13 to flow into the water storage box 65 through the water outlet pipe 64, and then be discharged through the drain hole 651 and the water permeable hole 81 to flush and clean the detection end of the detection component 3.

[0065] Step e. After injecting a certain amount of slurry into the buffer tank 1, close the first valve body 22 on the first pump body 21 and the second branch pipe 2, open the second valve body 4, and slide the pressure plate 51 downward to discharge the slurry in the buffer tank 1 into the outlet pipe 12. The detection component 3 in the outlet pipe 12 detects the pH value, density and temperature of the slurry.

[0066] Step f. During the downward movement of the pressure plate 51, the debris attached to the inner wall of the buffer tank 1 is scraped off. During the downward movement of the pressure plate 51, the pusher 102 is also driven to move downward. The pusher 102 first abuts against the inclined bottom wall of the buffer tank 1, and then the pusher 102 slides down along the inclined bottom wall of the buffer tank 1, pushing the debris remaining on the bottom wall of the buffer tank 1 into the outlet pipe 12, so as to avoid the residual debris affecting the next test.

[0067] The above are optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multifunctional online detection device for desulfurization tower slurry, characterized in that: include: A buffer tank (1) is provided with an inlet pipe (11) and an outlet pipe (12), and a first pump body (21) is provided on the inlet pipe (11). The infusion assembly includes multiple branch pipes (2), each of which is provided with a first valve body (22). One end of the branch pipe (2) is connected to the inlet pipe (11), and the other end of the branch pipe (2) is used to connect to the slurry tank (18). The multiple branch pipes (2) are respectively connected to different heights of the slurry tank (18). The detection component (3) is disposed on the liquid outlet pipe (12) and includes a pH meter, a density meter and a thermometer; The second valve body (4) is disposed on the liquid outlet pipe (12) and is used to control the opening and closing of the liquid outlet pipe (12); The extrusion assembly (5) includes a pressure plate (51) and a first spring (52). The pressure plate (51) is vertically slidably disposed in the buffer box (1). The side wall of the pressure plate (51) abuts against the inner wall of the buffer box (1). The inlet pipe (11) and the outlet pipe (12) are both located below the pressure plate (51). The first spring (52) is connected between the pressure plate (51) and the inner wall of the buffer box (1). The first spring (52) causes the pressure plate (51) to slide towards the side closer to the outlet pipe (12). After the second valve body (4) closes the outlet pipe (12), when the slurry is injected into the buffer box (1) through the inlet pipe (11), the injected slurry pushes the pressure plate (51) to slide upward and overcomes the elastic force of the first spring (52).

2. The multifunctional online detection device for desulfurization tower slurry according to claim 1, characterized in that: A cleaning component (6) is provided on one side of the buffer tank (1). The cleaning component (6) includes a water tank (61), a top plate (62), an inlet pipe (63), an outlet pipe (64), and a water storage box (65). The top plate (62) is vertically slidably disposed in the water tank (61). The side wall of the top plate (62) abuts against the inner wall of the water tank (61). A water storage cavity (611) for storing water is formed between the bottom wall of the top plate (62) and the inner wall of the water tank (61). The top wall of the pressure plate (51) and the buffer tank... (1) A temporary storage cavity (13) for storing water is formed between the inner walls. One end of the water inlet pipe (63) is connected to the water storage cavity (611), and the other end of the water inlet pipe (63) is connected to the temporary storage cavity (13). One end of the water outlet pipe (64) is connected to the temporary storage cavity (13), and the other end of the water outlet pipe (64) is connected to the water storage box (65). The water storage box (65) is located in the liquid outlet pipe (12), and a drain hole (651) is provided on the side of the water storage box (65) near the detection component (3).

3. The multifunctional online detection device for desulfurization tower slurry according to claim 2, characterized in that: A limiting component (7) is provided between the water tank (61) and the top plate (62). The limiting component (7) includes a toothed plate (71) and a second spring (72). The toothed plate (71) is vertically arranged and horizontally slidably connected to the water tank (61). There are two toothed plates (71), and the teeth on the two toothed plates (71) face each other. The second spring (72) is connected between the water tank (61) and the toothed plate (71) so that when the top plate (62) slides down, it pushes the two toothed plates (71) to slide away from each other.

4. The multifunctional online detection device for desulfurization tower slurry according to claim 3, characterized in that: A mounting shell (8) is provided on the outside of the drain hole (651) of the water storage box (65). A water permeable hole (81) is provided on the mounting shell (8). A filter screen is provided on the outside of the water permeable hole (81) of the mounting shell (8). An opening and closing assembly (9) is provided in the mounting shell (8). The opening and closing assembly (9) includes a first baffle (91), a second baffle (92), a retaining spring (93), and a double-ended screw (94). The threads at both ends of the double-ended screw (94) turn in opposite directions. The double-ended screw (94) is rotatably connected to the mounting housing (8). The first baffle (91) and the second baffle (92) are both slidably connected to the mounting housing (8). The first baffle (91) and the second baffle (92) are threadedly connected to both ends of the double-ended screw (94). The abutment spring (93) is connected between the first baffle (91) and the second baffle (92) so that the first baffle (91) abuts against the drain hole (651) and the second baffle (92) abuts against the water permeable hole (81).

5. The multifunctional online detection device for desulfurization tower slurry according to claim 1, characterized in that: The bottom wall of the buffer tank (1) is inclined downward from both sides to the center. The bottom of the buffer tank (1) is provided with a liquid outlet (14) between the two inclined bottom walls. The liquid outlet (14) is connected to the liquid outlet pipe (12).

6. The multifunctional online detection device for desulfurization tower slurry according to claim 5, characterized in that: A pushing assembly (10) is provided on the pressure plate (51). The pushing assembly (10) includes a slider (101), a push block (102), a support rod (103), a third spring (104), and a fourth spring (105). The slider (101) is horizontally slidably connected to the pressure plate (51). The third spring (104) is connected between the slider (101) and the pressure plate (51). The support rod (103) is vertically slidably inserted through the slider (101). The push block... (102) is fixedly connected to the bottom end of the support rod (103). The bottom of the push block (102) is inclined and adapted to the inclined bottom wall of the buffer box (1). The fourth spring (105) is connected between the slider (101) and the push block (102) so that when the pressure plate (51) slides down, the fourth spring (105) is compressed. The elastic force applied by the fourth spring (105) to the push block (102) causes the push block (102) to slide down along the inclined bottom wall of the buffer box (1).

7. The multifunctional online detection device for desulfurization tower slurry according to claim 6, characterized in that: The top of the support rod (103) is provided with a connecting plate (15), and the top of the support rod (103) is horizontally slidably connected to the connecting plate (15). The top side of the pressure plate (51) is provided with a bag body (16), which is elastic. A sealed receiving cavity (161) is formed between the bag body (16) and the pressure plate (51). The tops of the connecting plate (15) and the support rod (103) are both located in the receiving cavity (161). The inner walls of the connecting plate (15) and the bag body (16) are fixedly connected.

8. The multifunctional online detection device for desulfurization tower slurry according to claim 6, characterized in that: The bottom of the push block (102) is provided with a clearance groove (1021).

9. The multifunctional online detection device for desulfurization tower slurry according to claim 1, characterized in that: A mixing component (17) is provided at the liquid inlet pipe (11). The mixing component (17) includes a motor (171), a rotating rod (172), and a stirring blade (173). The motor (171) is located on the outer wall of the liquid inlet pipe (11). The rotating rod (172) is coaxially fixedly connected to the end of the output shaft of the motor (171). The stirring blade (173) is located on the rotating rod (172) and is located in the liquid inlet pipe (11).

10. A method for using the multifunctional online detection device for desulfurization tower slurry according to any one of claims 1-9, characterized in that: The method includes the following steps: a. Open the first valve body (22) on the first branch pipe (2). The slurry in the slurry pool (18) flows into the buffer tank (1) through the first branch pipe (2) and the inlet pipe (11). The slurry flowing into the buffer tank (1) pushes the pressure plate (51) to move upward. The pressure plate (51) is always pressed against the liquid surface at the top of the slurry to eliminate the foam in the slurry. After a period of time, close the first valve body (22) on the first branch pipe (2). b. Open the second valve body (4), the first spring (52) drives the pressure plate (51) to move down, the pressure plate (51) squeezes the slurry in the buffer tank (1) into the outlet pipe (12), the detection component (3) in the outlet pipe (12) detects the pH value, density and temperature of the slurry, and closes the second valve body (4) after the detection is completed. c. Open the first valve body (22) on the second branch pipe (2). The slurry in the slurry tank (18) flows into the buffer tank (1) through the second branch pipe (2) and the inlet pipe (11). The slurry flowing into the buffer tank (1) pushes the pressure plate (51) to move upward. The pressure plate (51) is always pressed against the liquid surface at the top of the slurry to eliminate the foam in the slurry. After a period of time, close the first valve body (22) on the second branch pipe (2). d. Open the second valve body (4), the first spring (52) drives the pressure plate (51) to move down, the pressure plate (51) squeezes the slurry in the buffer tank (1) into the outlet pipe (12), the detection component (3) in the outlet pipe (12) detects the pH value, density and temperature of the slurry, and closes the second valve body (4) after the detection is completed.

Images