A desulfurization slurry detection device

Abstract

The utility model provides a kind of desulfurization slurry detection device, including detection module and with the detection module connection automation control module, the detection module includes pipeline and is sequentially arranged on the pipeline sampling assembly, filtering component and index detection component, the automation control module includes programmable logic controller and with the programmable logic controller connection data analysis software and touch screen display.The utility model can improve detection precision, sample processing capacity and degree of automation, reduce maintenance cost and complexity.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization detection technology, and in particular to a desulfurization slurry detection device. Background Technology

[0002] Desulfurization slurry is a liquid used to capture and convert sulfur dioxide in flue gas to meet stringent environmental emission standards. It mainly consists of limestone slurry, gypsum slurry, etc., and removes harmful substances from flue gas through chemical reactions, reducing air pollution. Desulfurization slurry plays a crucial role in the desulfurization process. It reacts with sulfur dioxide in the flue gas to generate solid substances such as gypsum, thereby reducing the sulfur dioxide content in the flue gas. This process is of great significance for reducing air pollution and meeting environmental standards. During use, it is necessary to carefully control the pH value and chloride ion concentration of the desulfurization slurry to avoid corrosion of equipment and ensure desulfurization efficiency.

[0003] The main purpose of desulfurization slurry testing is to ensure the performance and stability of the desulfurization system and to guarantee that emission standards meet environmental protection requirements. By testing and analyzing various indicators of the desulfurization slurry, problems in system operation can be identified and resolved in a timely manner, system performance can be optimized, and desulfurization effects and environmental protection requirements can be met. Existing desulfurization slurry testing devices mainly have the following problems: 1) Insufficient testing accuracy: Existing devices are prone to introducing errors during sampling and testing, affecting the accuracy of the test results. 2) Complex maintenance: Many devices are difficult to maintain and clean, leading to frequent maintenance costs and downtime. 3) Inadequate sample processing: Existing devices have insufficient sample pretreatment capabilities, which may lead to sample contamination or errors. Utility Model Content

[0004] The purpose of this invention is to provide a desulfurization slurry detection device that can improve detection accuracy, sample processing capacity and automation level, and reduce maintenance costs and complexity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a desulfurization slurry detection device, comprising a detection module and an automated control module connected to the detection module, the detection module comprising a pipeline and a sampling component, a filtering component and an index detection component sequentially arranged on the pipeline, the automated control module comprising a programmable logic controller and data analysis software and a touch screen display connected to the programmable logic controller.

[0006] Optionally, the sampling assembly includes a sampling pipe connected to the desulfurization slurry absorption tower, a Y-shaped filter installed on the sampling pipe, and a first slurry inlet electric valve installed at one end of the sampling pipe, the other end of which is connected to the desulfurization slurry absorption tower.

[0007] Optionally, the Y-shaped filter includes a horizontal channel for liquid inlet and an inclined channel for preliminary filtration. One end of the horizontal channel is connected to one end of the inclined channel, and a slurry inlet is provided at the connection between the horizontal channel and the inclined channel. The other end of the horizontal channel is provided with a slurry outlet, and the other end of the inclined channel is provided with a filter screen removal port. A filter screen is provided inside the inclined channel. The slurry inlet and the slurry outlet are both located on the sampling pipe.

[0008] Optionally, the filtration assembly includes a connecting pipe, a slurry filter tank connected above the connecting pipe, a cylindrical filter vertically disposed inside the slurry filter tank, and a first overflow pipe, a first flushing water header pipe, and a transmission pipe disposed outside the slurry filter tank. The flushing water header pipe is equipped with a first flushing water electric valve, and the transmission pipe is equipped with a second slurry inlet electric valve.

[0009] Optionally, the indicator detection component includes a sample outlet pipe, a slurry detection tank connected above the sample outlet pipe, an electric stirrer installed inside the slurry detection tank, a sulfite sensor, a dissolved oxygen sensor, a chloride ion sensor, a fluoride ion sensor installed outside the slurry detection tank, a second overflow pipe, and a second flushing water header pipe. The slurry detection tank and the slurry filter tank are connected through the transmission pipe, and a second flushing water electric valve is installed on the second flushing water header pipe.

[0010] Optionally, the sampling pipe is connected to the connecting pipe via the first slurry inlet electric valve, the connecting pipe is connected to the sampling outlet pipe via the first drain valve, and the sampling outlet pipe is connected to the slurry detection tank via the second drain valve.

[0011] Optionally, the programmable logic controller is connected to the first feed electric valve, the second feed electric valve, the first flushing water electric valve, the second flushing water electric valve, the first drain valve, the second drain valve, and the electric agitator. The data analysis software and the touch screen display are both connected to the sulfite sensor, the dissolved oxygen sensor, the chloride ion sensor, and the fluoride ion sensor.

[0012] Therefore, the beneficial effects achieved by the desulfurization slurry detection device of the present invention, which adopts the above-described structure, are as follows:

[0013] 1. High processing capacity: This device uses a Y-shaped filter (for preliminary filtration of larger wood chips, rust, etc. in the desulfurization slurry) and a cylindrical filter (for removing solid particles from the slurry) to pre-treat the slurry, providing a basis for more accurate test data and reducing errors caused by improper sample processing.

[0014] 2. Low maintenance cost: This device uses an automated control module to control the flushing water main pipe and the flushing water electric valve, which can realize automatic cleaning function, reducing maintenance difficulty and cost.

[0015] 3. High operating efficiency: By utilizing an automated control module, this device can achieve automated and remote control functions, thereby improving the overall operating efficiency and flexibility of the device.

[0016] 4. High detection accuracy: This device uses filtered samples as a basis and employs multiple sensor fusion detection to obtain accurate detection data.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the device structure provided by this utility model;

[0020] Figure 2 A schematic diagram of the device structure of the Y-shaped filter provided by this utility model;

[0021] Figure 3 A top view of the index detection component provided by this utility model;

[0022] Reference numerals: 11. Sampling pipe; 12. Y-shaped filter; 121. Horizontal channel; 122. Inclined channel; 123. Slurry inlet; 124. Slurry outlet; 125. Filter screen removal port; 126. Filter screen; 21. Connecting pipe; 22. Slurry filtration tank; 23. Cylindrical filter; 24. First overflow pipe; 25. First flushing water main pipe; 26. First flushing water electric valve; 31. Sampling pipe; 32. Slurry detection tank; 33. Electric stirrer; 34. Sulfite sensor; 35. Dissolved oxygen sensor; 36. Chloride ion sensor; 37. Fluoride ion sensor; 38. Second overflow pipe; 39. Second flushing water main pipe; 391. Second flushing water electric valve; 4. Transmission pipe; 41. Second slurry inlet electric valve; 5. First slurry inlet electric valve; 6. First drain valve; 7. Second drain valve. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] Example

[0025] like Figure 1-3 As shown, this utility model provides a desulfurization slurry testing device, including a testing module and an automated control module connected to the testing module. The automated control module can remotely monitor and adjust the operating status of the testing device, view real-time data, and operate the equipment remotely.

[0026] 1. Detection module

[0027] It includes a pipeline and a sampling assembly, a filtering assembly, and an indicator detection assembly sequentially arranged on the pipeline.

[0028] The sampling assembly includes a sampling pipe 11 connected to the desulfurization slurry absorption tower, a Y-shaped filter 12 installed on the sampling pipe 11 (for preliminary filtration of larger wood chips, rust, etc. in the desulfurization slurry), and a first slurry inlet electric valve 5 installed at one end of the sampling pipe 11. The other end of the sampling pipe 11 is connected to the desulfurization slurry absorption tower.

[0029] The Y-shaped filter 12 includes a horizontal channel 121 for liquid inlet and an inclined channel 122 for preliminary filtration. One end of the horizontal channel 121 is connected to one end of the inclined channel 122, and a slurry inlet 123 is provided at the connection between the horizontal channel 121 and the inclined channel 122. A slurry outlet 124 is provided at the other end of the horizontal channel 121, and a filter screen removal port 125 is provided at the other end of the inclined channel. A filter screen 126 is provided inside the inclined channel. The slurry inlet 123 and the slurry outlet 124 are both located on the sampling pipe.

[0030] The filtration assembly includes a connecting pipe 21, a slurry filter tank 22 connected above the connecting pipe 21, a cylindrical filter 23 vertically disposed inside the slurry filter tank 22, and a first overflow pipe 24, a first flushing water header pipe 25, and a transmission pipe 4 disposed outside the slurry filter tank. The flushing water header pipe is equipped with a first flushing water electric valve 26, and the transmission pipe 4 is equipped with a second slurry inlet electric valve 41.

[0031] The indicator detection component includes a sample outlet pipe 31, a slurry detection tank 32 connected above the sample outlet pipe 31, an electric stirrer 33 installed inside the slurry detection tank 32, a sulfite sensor 34, a dissolved oxygen sensor 35, a chloride ion sensor 36, a fluoride ion sensor 37 installed outside the slurry detection tank 32, a second overflow pipe 38, and a second flushing water header pipe 39. The slurry detection tank 32 is connected to the slurry filter tank 22 through the transmission pipe 4, and a second flushing water electric valve 391 is installed on the second flushing water header pipe 39.

[0032] The sampling pipe 11 is connected to the connecting pipe 21 via the first slurry inlet electric valve 5, the connecting pipe 21 is connected to the sampling outlet pipe 31 via the first drain valve 6, and the sampling outlet pipe 31 is connected to the slurry detection tank 32 via the second drain valve 7.

[0033] The entire device is constructed of galvanized carbon steel, with a temperature range of 50-55℃ and a temperature control accuracy of ±1℃. The electric valves are electrically controlled and made of cast iron lined with rubber of 1.4529 or higher. The cylindrical filter 23 uses a high-precision mesh or ceramic filter element, effectively removing solid impurities from the slurry while preventing damage to downstream detection units.

[0034] 2. Automation control module

[0035] It includes a programmable logic controller (which enables electric valve control, data acquisition, processing and analysis, and also has data transmission, remote monitoring and control functions), data analysis software connected to the programmable logic controller (which has real-time data processing and trend prediction functions, and supports remote monitoring and control), and a touch screen display (which displays real-time data and setting parameters, and supports multi-language interface).

[0036] The programmable logic controller is connected to the first feed electric valve 5, the second feed electric valve 41, the first flushing water electric valve 26, the second flushing water electric valve 391, the first drain valve 6, the second drain valve 7, and the electric agitator 33. The data analysis software and the touch screen display are both connected to the sulfite sensor 34, the dissolved oxygen sensor 35, the chloride ion sensor 36, and the fluoride ion sensor 37.

[0037] 3. Testing process

[0038] The desulfurization slurry in the absorption tower enters the connecting pipe 21 through the sampling pipe 11, the Y-shaped filter 12 (for preliminary filtration) and the first slurry inlet electric valve 5. After preliminary filtration, the desulfurization slurry is transported to the slurry filter tank 22 through the connecting pipe 21 for secondary filtration.

[0039] 3.1 Sampling

[0040] When the first inlet electric valve 5 is opened, the desulfurization slurry comes out of the absorption tower and first undergoes preliminary filtration through a Y-type filter (removing larger impurities such as stones, branches, and scale). Then, the slurry after preliminary filtration enters the slurry filter tank 22 through the first inlet electric valve 5 and the connecting pipe 21 for secondary filtration. The qualified slurry enters the slurry filter tank 22 through the cylindrical filter 23. When the slurry overflows through the first overflow pipe 24, the first inlet electric valve 5 is closed, and the excess slurry is discharged into the ditch through the first overflow pipe 24.

[0041] 3.2 Sample Pretreatment

[0042] When the slurry filter tank 22 is full, after a period of time, the small solid particles in the slurry will settle. At this time, the second slurry inlet electric valve 41 is opened, and the clarified desulfurization slurry supernatant will flow into the slurry detection tank 32 by the pressure inside the slurry filter tank 22. If the slurry detection tank 32 is full, the excess slurry will be discharged into the ditch from the second overflow pipe 38.

[0043] 3.3 Sample Testing

[0044] The desulfurization slurry flows into the slurry testing tank 32 through the slurry filter tank 22. The electric stirrer 33 inside the slurry testing tank 32 will perform secondary mixing of the desulfurization slurry to ensure the authenticity of the measurement data. Multiple sensors on the slurry testing tank 32 will start measuring the corresponding data.

[0045] Sulfite sensor 34: measures the sulfite concentration in slurry, with a measurement range of 0-400 mg / L and an accuracy of ±0.01 mg / L;

[0046] Dissolved oxygen sensor 35: detects the dissolved oxygen content in slurry, which can reflect the degree of oxidation of slurry. The measurement range is 0-20 mg / L, and the accuracy is 0.01 mg / L.

[0047] Fluoride ion sensor 37: Measures chloride ion concentration in slurry, with a measurement range of 0-2000 mg / L. Accuracy: 0.01 mg / L;

[0048] Chloride ion sensor 36: Measures the chloride ion concentration in slurry, with a measurement range of 0-20000 mg / L and an accuracy of 0.01 mg / L.

[0049] 3.4 Data Processing

[0050] The data from each sensor is transmitted to the PLC (Programmable Logic Controller). The data analysis software analyzes the sensor data and displays the measured data on a touchscreen. The PLC synchronously transmits the data to a remote location for operators to view the measurement data.

[0051] 3.5 Sample Discharge

[0052] After the measurement is completed, the first drain valve 6 and the second drain valve 7 are opened to discharge the desulfurization slurry in the equipment. The first flushing water electric valve 26 and the second flushing water electric valve 391 are also opened to flush the inside of the equipment, the cylindrical filter 23, the measuring sensors, etc. After flushing, the equipment is restored to its original state and awaits the next operation.

[0053] Therefore, by providing a desulfurization slurry detection device, this utility model can improve detection accuracy, sample processing capacity and automation level, and reduce maintenance costs and complexity.

[0054] Finally, it should be noted that specific examples have been used in this document to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A desulfurization slurry detection device, characterized in that: The system includes a detection module and an automated control module connected to the detection module. The detection module includes a pipeline and a sampling component, a filtering component, and an index detection component sequentially arranged on the pipeline. The automated control module includes a programmable logic controller and data analysis software and a touch screen display connected to the programmable logic controller. The sampling assembly includes a sampling pipe connected to the desulfurization slurry absorption tower, a Y-shaped filter installed on the sampling pipe, and a first slurry inlet electric valve installed at one end of the sampling pipe. The other end of the sampling pipe is connected to the desulfurization slurry absorption tower. The Y-shaped filter includes a horizontal channel for liquid inlet and an inclined channel for preliminary filtration. One end of the horizontal channel is connected to one end of the inclined channel, and a slurry inlet is provided at the connection between the horizontal channel and the inclined channel. The other end of the horizontal channel is provided with a slurry outlet, and the other end of the inclined channel is provided with a filter screen removal port. A filter screen is provided inside the inclined channel. Both the slurry inlet and the slurry outlet are located on the sampling pipe. The filtration assembly includes a connecting pipe, a slurry filter tank connected above the connecting pipe, a cylindrical filter vertically disposed inside the slurry filter tank, and a first overflow pipe, a first flushing water header pipe, and a transmission pipe disposed outside the slurry filter tank. A first flushing water electric valve is disposed on the flushing water header pipe, and a second slurry inlet electric valve is disposed on the transmission pipe. The indicator detection component includes a sample outlet pipe, a slurry detection tank connected above the sample outlet pipe, an electric stirrer installed inside the slurry detection tank, a sulfite sensor, a dissolved oxygen sensor, a chloride ion sensor, a fluoride ion sensor installed outside the slurry detection tank, a second overflow pipe, and a second flushing water header pipe. The slurry detection tank and the slurry filtration tank are connected through the transmission pipe, and a second flushing water electric valve is installed on the second flushing water header pipe.

2. The desulfurization slurry detection device according to claim 1, characterized in that: The sampling pipe is connected to the connecting pipe via the first electric slurry inlet valve, the connecting pipe is connected to the sampling outlet pipe via the first drain valve, and the sampling outlet pipe is connected to the slurry testing tank via the second drain valve.

3. The desulfurization slurry detection device according to claim 2, characterized in that: The programmable logic controller is connected to the first feed electric valve, the second feed electric valve, the first flushing water electric valve, the second flushing water electric valve, the first drain valve, the second drain valve, and the electric agitator. The data analysis software and the touch screen display are both connected to the sulfite sensor, the dissolved oxygen sensor, the chloride ion sensor, and the fluoride ion sensor.

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