Desulfurization acid reaction device and method capable of automatically detecting sulfate radical content

Abstract

The invention discloses a desulfurized acid reactor and method capable of automatically detecting the content of sulfate radical, the desulfurized acid reactor comprises a desulfurized acid reactor, a sulfate radical solution feed pipe and a barium salt solution feed pipe are arranged above the desulfurized acid reactor, a first exhaust valve is arranged at the bottom of the desulfurized acid reactor, and the middle part of the desulfurized acid reactor is communicated with a cyclone through a pipeline via a first membrane filtration circulating pump; the top of the cyclone is sequentially communicated with the top of the first membrane filter and the top of the desulfurized acid reactor through pipelines, the bottom of the cyclone is further communicated with the top of the desulfurized acid reactor through a pipeline, and the first membrane filter is further sequentially communicated with the top of the third barium reagent storage barrel and the top of the desulfurized acid reactor through pipelines; a clear solution sampling opening is formed in a pipeline for communicating the third barium reagent storage barrel with the desulfurized acid reactor and is communicated with a clear solution quantitative sampling bottle through a pipeline; and the clear solution quantitative sampling bottle is communicated with the first clear solution and barium reagent mixer through a pipeline. The process disclosed by the invention is more stable in production, wider in allowable operation range and convenient to control.

Description

Technical Field

[0001] The invention belongs to the fields of chemical technology, chemical testing and analysis and instrument automation, and relates to a reaction device capable of fully automatically detecting the concentration of reactants, and is particularly suitable for a refined production unit in which the concentration requirement value of a certain substance in a product is very low. Background Art

[0002] There are requirements for sulfate content in various chemical and pharmaceutical product standards. The general production method is to use crude desulfurization first, and then use barium carbonate for fine desulfurization to reduce the sulfate content to the standard value. However, since the sulfate concentration value requirement for this type of material produced by the reaction of barium carbonate and sulfate is very low, excessive addition of barium carbonate will cause the barium concentration to exceed the standard, and too little addition of barium carbonate will cause the sulfate content to exceed the standard. How to automatically control the entire production process has always been pursued by the industry.

[0003] There are many automatic detection analyzers on the market. However, these automatic detection analyzers use machines to replace manual analysis in traditional manual analysis methods. There are too many control points in this type of analysis process, resulting in very large errors. In the chemical production process, many fine automation instrument materials do not meet the corrosion of materials and changes in material reactions, making it difficult to ensure the long-term stable operation of automatic detection analyzers. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a desulfurization reaction device and method capable of automatically detecting sulfate content.

[0005] The technical solution of the present invention is as follows: A desulfurization reaction device capable of automatically detecting sulfate content, the device comprises a desulfurization reactor, a sulfate solution feed pipe and a barium salt solution feed pipe are arranged above the desulfurization reactor, a first exhaust valve is arranged at the bottom, the middle of the desulfurization reactor is connected with a cyclone through a pipeline via a first membrane filtration circulation pump, the top of the cyclone is connected with the first membrane filter and the top of the desulfurization reactor in sequence through a pipeline, the bottom of the cyclone is also connected with the top of the desulfurization reactor through a pipeline, the first membrane filter is also connected with the third barium reagent storage barrel and the top of the desulfurization reactor in sequence through a pipeline, a solution clear liquid sampling port is arranged on the pipeline connecting the third barium reagent storage barrel and the desulfurization reactor, and the solution clear liquid quantitative sampling bottle is connected with the first solution clear liquid and a barium reagent mixer through a pipeline, The first barium reagent storage barrel is connected to the first barium reagent quantitative sampling bottle through a pipeline via a first barium reagent titration valve, and the first barium reagent quantitative sampling bottle is connected to the first solution clear liquid and the barium reagent mixer through a pipeline. The second barium reagent storage barrel is connected to the second barium reagent quantitative sampling bottle through a pipeline via a second barium reagent titration valve, and the second barium reagent quantitative sampling bottle is connected to the first solution clear liquid and the barium reagent mixer through a pipeline. The third barium reagent storage barrel is connected to the third barium reagent quantitative sampling bottle through a pipeline via a third barium reagent titration valve, and the third barium reagent quantitative sampling bottle is connected to the first solution clear liquid and the barium reagent mixer through a pipeline. The first solution clear liquid and the bottom of the barium reagent mixer are connected in sequence through a pipeline via a second membrane filtration circulation pump, a first automatic reversing valve and a second membrane filter, the top of the second membrane filter is connected to the first solution clear liquid and the barium reagent mixer through a second membrane filter circulation discharge pipe, and the second membrane filtration circulation pump is also connected to the first solution clear liquid and the top of the barium reagent mixer through a pipeline via a second automatic reversing valve. The second membrane filter is connected with the second solution clear liquid and the barium reagent mixer through a pipeline, the third barium reagent storage barrel is connected with the second solution clear liquid and the barium reagent mixer through a pipeline via a fourth barium reagent titration valve, and a high-definition camera identifier is provided on the second solution clear liquid and the barium reagent mixer.

[0006] Preferably, a reaction tank discharge pump is provided at the lower part of the desulfurization reactor.

[0007] Preferably, a second drain valve is provided at the bottom of the mixer for the first clear solution and the barium reagent, and a third drain valve is provided at the bottom of the mixer for the second clear solution and the barium reagent.

[0008] Preferably, the high-definition camera identifier has 8 million pixels or more and is provided with a fill light.

[0009] Preferably, a stirring paddle is provided inside the desulfurization reactor, wherein the upper stirring paddle blades press the material downwards, and the lower stirring paddle can push the material upwards.

[0010] Preferably, the first barium reagent storage barrel, the second barium reagent storage barrel, and the third barium reagent storage barrel are provided in plurality for analyzing different sulfate concentration ranges to increase the accuracy of the sampling and detection results.

[0011] The desulfurization reaction device capable of automatically detecting sulfate content, the desulfurization reactor capable of automatically detecting sulfate content can be connected in series in multiple sets, and the sulfate and barium solution are allowed to react in multiple stages, and the sulfate content of the desulfurization reactor is gradually reduced, and different first barium reagent storage tanks, second barium reagent storage tanks, and third barium reagent storage tanks are set in different desulfurization reactors. Not only can the accuracy of the detection be ensured, but also the multi-stage reaction of sulfate and barium solution allows the crystals to grow continuously.

[0012] A desulfurization reactor capable of automatically detecting sulfate content and a method of using the reactor, the method comprising the following steps: Step 1: The sulfate solution passes through the sulfate solution feed pipe, and the barium salt solution passes through the barium salt solution feed pipe. After the two are mixed, they enter the desulfurization reactor. Under the continuous stirring of the stirring paddle, the sulfate solution and the barium salt solution are fully mixed and reacted. The reacted material is output to the rear unit through the reaction tank discharge pump to ensure the stability of the liquid level meter control of the desulfurization reactor. The first flowmeter and the second flowmeter are adjusted by the reaction concentration in the desulfurization reactor obtained in the subsequent steps to control the sulfate concentration of the entire reactor within the index range.

[0013] (This process is a reaction process.) Step 2: The material in the desulfurization reactor is pumped into the cyclone through the first membrane filtration circulation pump. The material with more barium sulfate in the afternoon directly enters the desulfurization reactor. The upper logistics is filtered through the first membrane filter. The material flows back to the desulfurization reactor through the first membrane filter circulation discharge pipe. The clear liquid filtered by the first membrane filter also flows back to the desulfurization reactor. The mechanical sampling wall samples the solution clear liquid sampling port at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled in the solution clear liquid quantitative sampling bottle n and then placed in the first solution clear liquid and barium reagent mixer; (This process is the process of taking the clear solution.) Step 3: Open the first barium reagent titration valve, and allow the barium reagent in the first barium reagent storage barrel to be sampled through the first barium reagent quantitative sampling bottle. The quantitative barium reagent 1 is placed in the first solution clear liquid and the barium reagent mixer.

[0014] (This process is the process of taking barium reagent 1.) Step 4: After the same volume of clear solution and barium reagent 1 enter the first solution clear liquid and barium reagent mixer, the first automatic reversing valve is automatically closed, the second automatic reversing valve is automatically opened, and the second membrane filtration circulation pump is automatically opened to allow the clear solution and barium reagent 1 to fully mix and react. After a certain period of time, the first automatic reversing valve is automatically opened, the second automatic reversing valve is automatically closed, the mixed solution is filtered through the second membrane filter, the mixed solution is circulated through the second membrane filter circulation discharge pipe, and the clear liquid discharged from the second membrane filter is transferred to the second solution clear liquid and barium reagent mixer. The fourth barium reagent titration valve is automatically opened to drip the barium reagent in the third barium reagent storage barrel into the second solution clear liquid and barium reagent mixer, and the barium reagent added to the clear liquid discharged from the second membrane filter is automatically identified and calculated by the high-definition camera identifier T.

[0015] (This process is: take the clear solution and the reactant of barium reagent 1, mix them and filter them to obtain the clear solution discharged from the second membrane filter, and add the barium reagent for identification.) Step 5: When the high-definition camera identifier automatically identifies that the second solution clear liquid and the barium reagent mixer react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor solution is ≥ the concentration in barium reagent 1; the concentration of barium reagent 1 in the first barium reagent storage tank is 0.01 mol / L, the concentration of barium reagent 2 in the second barium reagent storage tank is 0.005 mol / L, and the concentration of barium reagent 3 in the third barium reagent storage tank is 0.02 mol / L. The system needs to control the sulfate concentration in the desulfurization reactor at 0.005-0.01 mol / L.

[0016] At this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor solution is ≥ 0.01 mol / L. At this time, the flow rate display of the second flow meter in the barium salt solution feed pipe is automatically and slowly increased.

[0017] Step 6: The automatic detection device automatically cleans the first solution clear liquid and the barium reagent mixer, the second solution clear liquid and the barium reagent mixer, automatically cleans the second membrane filter, and opens the second drain valve and the third drain valve to drain the cleaning water. The mechanical sampling wall 1 samples the clear liquid sampling port at the clear liquid reflux pipe, and the clear liquid after sampling is quantitatively sampled by the clear liquid quantitative sampling bottle and then placed in the clear liquid and barium reagent mixer; the third barium reagent titration valve is opened to allow the barium reagent in the third barium reagent storage barrel that has been filled with barium reagent to be sampled through the third barium reagent quantitative sampling bottle. The quantitative barium reagent 3 is placed in the first solution clear liquid and the barium reagent mixer. Repeat step 4. When the high-definition camera identifier automatically identifies that the second solution clear liquid and the barium reagent mixer react to produce white particles of barium sulfate, it indicates that the sulfate concentration in the desulfurization reactor solution is ≥ the concentration in the barium reagent 3; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor solution is ≥ 0.02 mol / L. At this time, the flow display of the second flowmeter in the barium salt solution feed pipe is automatically increased.

[0018] Step 7: After the automatic detection device automatically cleans the first solution clear liquid and the barium reagent mixer, the second solution clear liquid and the barium reagent mixer, the second drain valve and the third drain valve are opened to drain the cleaning water. The mechanical sampling wall samples the clear liquid sampling port k at the clear liquid reflux pipe, and the clear liquid after sampling is quantitatively measured by the clear liquid quantitative sampling bottle and then placed in the first solution clear liquid and the barium reagent mixer; the second barium reagent titration valve is opened to allow the barium reagent in the second barium reagent storage barrel that has been filled with barium reagent to be sampled through the second barium reagent quantitative sampling bottle. The quantitative barium reagent 2 is placed in the first solution clear liquid and the barium reagent mixer. Repeat step 4. When the high-definition camera identifier automatically identifies that the second solution clear liquid and the barium reagent mixer react to produce white particles of barium sulfate, it indicates that the sulfate concentration in the desulfurization reactor solution is ≥ the concentration in barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor solution is ≥ 0.005 mol / L. At this time, the flow display of the second flowmeter in the barium salt solution feed pipe is automatically stabilized.

[0019] When the high-definition camera recognizer automatically recognizes that the second solution clear liquid and the barium reagent mixer react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor solution is ≤ the concentration in barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor solution is ≤ 0.005 mol / L. At this time, the flow rate display of the second flowmeter in the barium salt solution feed pipe is automatically and slowly reduced.

[0020] Step 8: The mechanical sampling wall 1 is used to continuously take samples from the clear liquid sampling port at the clear liquid reflux pipe for analysis, and it is determined whether the sulfate is within the index range, and the sulfate concentration in the desulfurization reactor solution is continuously adjusted within the index range.

[0021] The volume of the solution clear liquid quantitative sampling bottle is the same as that of the first barium reagent quantitative sampling bottle, the second barium reagent quantitative sampling bottle, and the third barium reagent quantitative sampling bottle. The volume of each sampling is ensured to be consistent during sampling to ensure the accuracy of sampling and detection. During the detection process, the detection result is determined by the high-definition camera recognition device to determine the color of the second solution clear liquid and the barium reagent mixer. The error rate is extremely low, there is no complicated calculation formula and calculation process, and the fool-proof calculation ensures the accuracy of the detection.

[0022] Preferably, different barium concentration reagents are set according to the changes in the index value range for the barium reagent concentration in the first barium reagent storage barrel, the second barium reagent storage barrel, and the third barium reagent storage barrel, or different barium concentration reagents are set according to the volume ratio of the solution clear liquid quantitative sampling bottle and the first barium reagent quantitative sampling bottle, the second barium reagent quantitative sampling bottle, and the third barium reagent quantitative sampling bottle to ensure the accuracy of sampling and detection.

[0023] The sulfate solution feed pipe and the barium salt solution feed pipe can be fed continuously or intermittently, realizing intermittent production or continuous production. Especially when the sulfate concentration is extremely low, stop feeding and wait for the test analysis to pass before adjusting the sulfate concentration again to ensure that the barium is not excessive.

[0024] This desulfurization reactor that automatically detects sulfate content is fully automated and does not require manual operation during the production and testing process.

[0025] The present invention has the following beneficial effects: 1. The present invention provides a reactor for removing sulfate and a production method thereof. The process production is more stable, the allowed operating range is wider, and it is easy to control. The sulfate content can be removed to below 0.0001 mol / L, and low concentrations can be detected. The traditional production method for removing sulfate from a solution: generally, after sampling and analyzing the sulfate in the solution, a metered amount of barium carbonate is added to the material for removing the sulfate. However, the traditional method for analyzing sulfate has two major problems. First, the material sample taken cannot directly replace the sulfate content of the entire material system. It is necessary to analyze and perform the desulfurization operation multiple times, and compare and check to ensure that the sulfate concentration is reduced to an extremely low level. Such production continuity is not strong and is heavily dependent on manual operation. Second, it is easy to make operational errors, which will lead to excessive addition of barium carbonate, causing confusion in the entire material system. The sulfate in each reaction tank of the device decreases in steps, the concentration is detected in sections, and the analysis point coverage is wide, avoiding abnormal errors caused by human factors.

[0026] 2. The device of the present invention can effectively avoid the situation of uneven material sampling, and the sampling is always accurate. The material is pumped into the cyclone so that a large amount of barium sulfate can be discharged into the desulfurization reactor, reducing the production load of the first membrane filter. The material passes through the first membrane filter so that the barium sulfate particles contained in the material in the desulfurization reactor are completely removed, avoiding the stability caused by the material sampled at the solution clear liquid sampling port. The material is displayed by the third flow meter to ensure that the material is always the material in the tank, avoiding the situation of repeated inaccurate sampling. 3. The analysis system of this device is simple and mechanical. The automatic analyzer only needs to use the high-definition camera identifier T to identify whether particles are generated in the reaction of the second solution clear liquid and the barium reagent mixer, and mechanically judge "yes" and "no", so as to obtain the range of values ​​of the concentration in the material, and judge the material concentration within the control range through multiple groups of reference objects. There are many sulfate analyzers on the market. When the sulfate concentration of the material they analyze is too low, or the sulfate is analyzed accurately to a concentration value of about 0.0001mol / L, the amount of analysis data is large, the influencing factors are many, and the related data errors are large, resulting in inaccurate analysis.

[0027] 4. This device does not require manual intervention in the reaction production, which reduces the amount of manual work, is easy to operate, and has low production costs. 5. The concentration and flow rate of the materials entering each reaction tank of this device (including the material pipeline) can be adjusted at will, with a large operating range and simple production. 6. After the same volume of clear solution and barium reagent 1 enters the first solution clear liquid and barium reagent mixer, the first automatic reversing valve is automatically closed, the second automatic reversing valve is automatically opened, and the second membrane filtration circulation pump is automatically opened to allow the clear solution and barium reagent 1 to be fully mixed and reacted. In this way, the materials can be fully mixed so that the materials react fully. After the reaction, barium sulfate particles are produced. Now the mixed solution needs to be filtered through the second membrane filter to remove the barium sulfate particles in the material. The clear liquid with barium sulfate particles removed enters the second membrane filter and the clear liquid discharged is transported to the second solution clear liquid and barium reagent mixer. At this time, the barium agent is dripped into the second solution clear liquid and barium reagent mixer. If the high-definition camera identifier does not see white particles in the second solution clear liquid and barium reagent mixer, and the material inside is still clear liquid, it means that the sulfate radical in the desulfurization reactor is less than the reference value. If white particles are seen, it means that the sulfate radical in the desulfurization reactor is greater than the reference value.

[0028] The advantages of the present invention are: 1) This reactor can automatically detect and analyze material indicators and carry out automated production with low labor costs.

[0029] 2) After the reactors are connected in series, the reaction process can be implemented gradually, and the growth process of the reaction material crystals is increased. Under the condition that the indicators can be automatically detected, the reaction process can be well controlled so that the reaction crystals continue to grow.

[0030] 3) This reactor automatic detection device breaks the constraints of traditional automatic detection analyzers by replicating the detection method of manual operations, combines chemical operation units with automatic instruments, and is designed with full consideration of the chemical production process. The automatic detection device has very high detection accuracy and long-term stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Figure 1 It is a schematic diagram of a desulfurization reactor capable of automatically detecting sulfate content of the present invention; Figure 2 This is a schematic diagram of a series connection of desulfurization reactors capable of automatically detecting sulfate content according to the present invention; In the figure: sulfate solution feed pipe a, barium salt solution feed pipe b, desulfurization reactor c, first exhaust valve d1, second exhaust valve d2, third exhaust valve d3, reaction tank discharge pump e, first flow meter f1, second flow meter f2, third flow meter f3, first membrane filtration circulation pump g1, second membrane filtration circulation pump g2, cyclone h, first membrane filter i1, second membrane filter i2, first membrane filter circulation discharge pipe j1, second membrane filter circulation discharge pipe j2, solution clear liquid sampling port k, mechanical sampling wall l, stirring paddle m, solution clear liquid fixed Volume sampling bottle n, first barium reagent quantitative sampling bottle o1, second barium reagent quantitative sampling bottle o2, third barium reagent quantitative sampling bottle o3, first barium reagent titration valve q1, second barium reagent titration valve q2, third barium reagent titration valve q3, fourth barium reagent titration valve q4, first barium reagent storage barrel r1, second barium reagent storage barrel r2, third barium reagent storage barrel r3, first solution clear liquid and barium reagent mixer s1, second solution clear liquid and barium reagent mixer s2, high-definition camera identifier T, first automatic reversing valve u1, second automatic reversing valve u2, liquid level meter v1. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention is not limited thereto. The specific implementation methods described herein are only used to illustrate and explain the present disclosure and are not used to limit the present disclosure. Equivalent replacements made to the contents of the present invention, or corresponding improvements, still fall within the protection scope of the present invention.

[0034] Example 1 The specific structure diagram is as follows Figure 1 , Figure 2 As shown. A desulfurization reaction device capable of automatically detecting sulfate content, the device comprises a desulfurization reactor c, a sulfate solution feed pipe a and a barium salt solution feed pipe b are arranged above the desulfurization reactor c, a first exhaust valve d1 is arranged at the bottom, the middle of the desulfurization reactor c is connected to the cyclone h through a pipeline via a first membrane filtration circulation pump g1, the top of the cyclone h is connected to the first membrane filter i1 and the top of the desulfurization reactor c in sequence through a pipeline, the bottom of the cyclone h is also connected to the top of the desulfurization reactor c through a pipeline, the first membrane filter i1 is also connected to the third barium reagent storage barrel r3 and the top of the desulfurization reactor c in sequence through a pipeline, a solution clear liquid sampling port k is arranged on the pipeline connecting the third barium reagent storage barrel r3 and the desulfurization reactor c, and the solution clear liquid quantitative sampling bottle n is connected to the first solution clear liquid and the barium reagent mixer s1 through a pipeline, The first barium reagent storage barrel r1 is connected to the first barium reagent quantitative sampling bottle o1 through a pipeline via the first barium reagent titration valve q1, and the first barium reagent quantitative sampling bottle o1 is connected to the first solution clear liquid and the barium reagent mixer s1 through a pipeline. The second barium reagent storage barrel r2 is connected to the second barium reagent quantitative sampling bottle o2 through a pipeline via the second barium reagent titration valve q2, and the second barium reagent quantitative sampling bottle o2 is connected to the first solution clear liquid and the barium reagent mixer s1 through a pipeline. The third barium reagent storage barrel r3 is connected to the third barium reagent quantitative sampling bottle o3 through a pipeline via the third barium reagent titration valve q3, and the third barium reagent quantitative sampling bottle o3 is connected to the first solution clear liquid and the barium reagent mixer s1 through a pipeline. The bottom of the first solution clear liquid and the barium reagent mixer s1 is connected in sequence through a pipeline via the second membrane filter circulation pump g2, the first automatic reversing valve u1 and the second membrane filter i2, the top of the second membrane filter i2 is connected to the first solution clear liquid and the barium reagent mixer s1 through the second membrane filter circulation discharge pipe j2, and the second membrane filter circulation pump g2 is also connected to the top of the first solution clear liquid and the barium reagent mixer s1 through a pipeline via the second automatic reversing valve u2. The second membrane filter i2 is connected to the second solution clear liquid and the barium reagent mixer s2 through a pipeline, the third barium reagent storage barrel r3 is connected to the second solution clear liquid and the barium reagent mixer s2 through a pipeline via the fourth barium reagent titration valve q4, and a high-definition camera identifier T is provided on the second solution clear liquid and the barium reagent mixer s2.

[0035] Preferably, a reaction tank discharge pump e is provided at the lower part of the desulfurization reactor c.

[0036] Preferably, a second drain valve d2 is provided at the bottom of the first clear solution and barium reagent mixer s1, and a third drain valve d3 is provided at the bottom of the second clear solution and barium reagent mixer s2.

[0037] Preferably, a stirring paddle m is provided inside the desulfurization reactor c. The upper stirring paddle blades of the stirring paddle m press the material downward, and the lower stirring paddle can push the material upward, so that the materials can be mixed more evenly.

[0038] Preferably, the first barium reagent storage barrel r1, the second barium reagent storage barrel r2, and the third barium reagent storage barrel r3 are provided in plurality for analyzing different sulfate concentration ranges to increase the accuracy of sampling and detection results.

[0039] The desulfurization reaction device capable of automatically detecting sulfate content, the desulfurization reactor capable of automatically detecting sulfate content can be connected in series in multiple sets, and the sulfate and barium solution are allowed to react in multiple stages, and the sulfate content of the desulfurization reactor C is gradually reduced, and different barium reagent concentrations of the first barium reagent storage tank r1, the second barium reagent storage tank r2, and the third barium reagent storage tank r3 are set in different desulfurization reactors C. Not only can the accuracy of the detection be ensured, but also the multi-stage reaction crystals of sulfate and barium solution are continuously grown.

[0040] A desulfurization reactor capable of automatically detecting sulfate content and a method of using the reactor, the method comprising the following steps: Step 1: The sulfate solution passes through the sulfate solution feed pipe a, and the barium salt solution passes through the barium salt solution feed pipe b, and the two are mixed and enter the desulfurization reactor c. Under the continuous stirring of the stirring paddle m, the sulfate solution and the barium salt solution are fully mixed and reacted. The reacted material is output to the rear unit through the reaction tank discharge pump e to ensure that the liquid level meter v1 of the desulfurization reactor c is stably controlled. The first flowmeter f1 and the second flowmeter f2 are adjusted by the reaction concentration in the desulfurization reactor c obtained in the subsequent steps to control the sulfate concentration of the entire reactor within the index range.

[0041] (This process is a reaction process.) Step 2: The material in the desulfurization reactor c is pumped into the cyclone h through the first membrane filtration circulation pump g1, and the material containing more barium sulfate in the afternoon directly enters the desulfurization reactor c, and the upper logistics is filtered through the first membrane filter i1, and the material is refluxed to the desulfurization reactor c through the first membrane filter circulation discharge pipe j1, and the clear liquid filtered by the first membrane filter i1 is also refluxed to the desulfurization reactor c. The mechanical sampling wall l samples the solution clear liquid sampling port k at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled through the solution clear liquid quantitative sampling bottle n and then placed in the first solution clear liquid and barium reagent mixer s1; (This process is the process of taking the clear solution.) Step 3: Open the first barium reagent titration valve q1, and let the barium reagent in the first barium reagent storage barrel r1 filled with barium reagent be sampled through the first barium reagent quantitative sampling bottle o1. The quantitative barium reagent 1 is placed in the first solution clear liquid and the barium reagent mixer s1.

[0042] (This process is the process of taking barium reagent 1.) Step 4: After the same volume of clear solution and barium reagent 1 enters the first solution clear liquid and barium reagent mixer s1, the first automatic reversing valve (u1) is automatically closed, the second automatic reversing valve u2 is automatically opened, and the second membrane filtration circulation pump g2 is automatically opened to allow the clear solution and barium reagent 1 to fully mix and react. After a certain period of time, the first automatic reversing valve u1 is automatically opened, the second automatic reversing valve u2 is automatically closed, the mixed liquid is filtered through the second membrane filter i2, and the mixed liquid is circulated through the second membrane filter circulation discharge pipe j2. The clear liquid discharged from the second membrane filter i2 is transferred to the second solution clear liquid and barium reagent mixer s2. The fourth barium reagent titration valve q4 is automatically opened to drip the barium reagent in the third barium reagent storage barrel r3 into the second solution clear liquid and barium reagent mixer s2. The clear liquid discharged from the second membrane filter i2 is added with barium reagent and automatically identified and calculated by the high-definition camera identifier T.

[0043] (This process is: take the clear solution and the reactant of barium reagent 1, mix them and filter them to obtain the clear solution discharged from the second membrane filter i2, and add the barium reagent for identification.) Step 5: When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 1; wherein the concentration of the first barium reagent storage barrel r1 barium reagent 1 is 0.01 mol / L, the concentration of the second barium reagent storage barrel r2 barium reagent 2 is 0.005 mol / L, and the concentration of the third barium reagent storage barrel r3 barium reagent 3 is 0.02 mol / L, and the system needs to control the sulfate concentration in the desulfurization reactor c to 0.005-0.01 mol / L.

[0044] At this time, the system automatically calculates that the sulfate concentration in the solution of the desulfurization reactor c is ≥ 0.01 mol / L. At this time, the flow rate display of the second flow meter f2 in the barium salt solution feed pipe b is automatically and slowly increased.

[0045] Step 6: The automatic detection device automatically cleans the first solution clear liquid and barium reagent mixer s1, the second solution clear liquid and barium reagent mixer s2, and automatically cleans the second membrane filter i2, and opens the second drain valve d2 and the third drain valve d3 to drain the cleaning water. The mechanical sampling wall l samples the clear liquid sampling port k at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled through the clear liquid quantitative sampling bottle n and then placed in the clear liquid and barium reagent mixer s1; the third barium reagent titration valve q3 is opened to allow the barium reagent in the third barium reagent storage barrel r3 that has been filled with barium reagent to be sampled through the third barium reagent quantitative sampling bottle o3. The quantitative barium reagent 3 is placed in the first solution clear liquid and barium reagent mixer s1. Repeat step 4. When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 3; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor c solution is ≥ 0.02 mol / L. At this time, the flow display of the second flowmeter f2 in the barium salt solution feed pipe b is automatically increased.

[0046] Step 7: After the automatic detection device automatically cleans the first solution clear liquid and the barium reagent mixer s1, the second solution clear liquid and the barium reagent mixer s2, the second drain valve d2 and the third drain valve d3 are opened to drain the cleaning water. The mechanical sampling wall l samples the clear liquid sampling port k at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled by the clear liquid quantitative sampling bottle n and then placed in the first solution clear liquid and the barium reagent mixer s1; the second barium reagent titration valve q2 is opened to allow the barium reagent in the second barium reagent storage barrel r2, which is already filled with barium reagent, to be sampled through the second barium reagent quantitative sampling bottle o2. The quantitative barium reagent 2 is placed in the first solution clear liquid and the barium reagent mixer s1. Repeat step 4. When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor c solution is ≥ 0.005 mol / L. At this time, the flow rate display of the second flow meter f2 in the barium salt solution feeding pipe b is automatically stabilized.

[0047] When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≤ the concentration in the barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor c solution is ≤ 0.005 mol / L. At this time, it automatically decreases slowly (the flow rate of the second flowmeter f2 in the barium salt solution feed pipe b is displayed.

[0048] Step 8: The mechanical sampling wall l is used to continuously sample and analyze the solution in the clear liquid sampling port k at the clear liquid reflux pipe to determine whether the sulfate is within the index range, and continuously adjust the sulfate concentration in the solution of the desulfurization reactor c within the index range.

[0049] The volume of the clear solution quantitative sampling bottle n is the same as that of the first barium reagent quantitative sampling bottle o1, the second barium reagent quantitative sampling bottle o2, and the third barium reagent quantitative sampling bottle o3. The sampling volume is ensured to be consistent each time to ensure the accuracy of the sampling test. During the test process, the test result is determined by the high-definition camera identifier T on the color of the second solution clear solution and the barium reagent mixer s2. The error rate is extremely low, there is no complicated calculation formula and calculation process, and the fool-proof calculation ensures the accuracy of the test.

[0050] Preferably, different barium concentration reagents are set according to the changes in the index value range for the barium reagent concentrations in the first barium reagent storage barrel r1, the second barium reagent storage barrel r2, and the third barium reagent storage barrel r3, or different barium concentration reagents are set according to the volume ratio of the clear solution quantitative sampling bottle n and the first barium reagent quantitative sampling bottle o1, the second barium reagent quantitative sampling bottle o2, and the third barium reagent quantitative sampling bottle o3 to ensure the accuracy of sampling and detection.

[0051] The sulfate solution feed pipe a and the barium salt solution feed pipe b can be fed continuously or intermittently, and can realize intermittent production or continuous production. Especially when the sulfate concentration is extremely low, stop feeding and wait for the test analysis to be qualified, and then adjust the sulfate concentration again to ensure that the barium is not excessive.

[0052] This desulfurization reactor that automatically detects sulfate content is fully automated and does not require manual operation during the production and testing process.

[0053] Case 1 Step 1: The sulfate solution passes through the sulfate solution feed pipe a, and the barium salt solution passes through the barium salt solution feed pipe b. After the two are mixed, they enter the desulfurization reactor c. Under the continuous stirring of the stirring paddle m, the sulfate solution and the barium salt solution are fully mixed and reacted. The reacted materials are output to the rear unit through the reaction tank discharge pump e to ensure that the liquid level meter v1 of the desulfurization reactor c is controlled stably. The first flowmeter f1 and the second flowmeter f2 are adjusted by the reaction concentration in the desulfurization reactor c obtained in the subsequent steps to control the sulfate concentration of the entire reactor within the index range. The entire control system needs to control the sulfate concentration in the desulfurization reactor c to 0.005-0.01 mol / L. The staff added 0.01mol / L concentration of barium reagent 1 to the first barium reagent storage barrel r1, 0.005mol / L concentration of barium reagent 1 to the second barium reagent storage barrel r2, and 0.015mol / L concentration of barium reagent 3 to the third barium reagent storage barrel r3 in advance.

[0054] (This process is a reaction process.) Step 2: The material in the desulfurization reactor c is pumped into the cyclone h through the first membrane filtration circulation pump g1, and the material containing more barium sulfate in the afternoon directly enters the desulfurization reactor c, and the upper logistics is filtered through the first membrane filter i1, and the material is refluxed to the desulfurization reactor c through the first membrane filter circulation discharge pipe j1, and the clear liquid filtered by the first membrane filter i1 is also refluxed to the desulfurization reactor c. The mechanical sampling wall l samples the solution clear liquid sampling port k at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled through the solution clear liquid quantitative sampling bottle n and then placed in the first solution clear liquid and barium reagent mixer s1; (This process is the process of taking the clear solution.) Step 3: Open the first barium reagent titration valve q1, and let the barium reagent in the first barium reagent storage barrel r1 filled with barium reagent be sampled through the first barium reagent quantitative sampling bottle o1. The quantitative barium reagent 1 is placed in the first solution clear liquid and the barium reagent mixer s1.

[0055] (This process is the process of taking barium reagent 1.) Step 4: After the same volume of clear solution and barium reagent 1 enters the first solution clear liquid and barium reagent mixer s1, the first automatic reversing valve (u1) is automatically closed, the second automatic reversing valve u2 is automatically opened, and the second membrane filtration circulation pump g2 is automatically opened to allow the clear solution and barium reagent 1 to fully mix and react. After a certain period of time, the first automatic reversing valve u1 is automatically opened, the second automatic reversing valve u2 is automatically closed, the mixed liquid is filtered through the second membrane filter i2, and the mixed liquid is circulated through the second membrane filter circulation discharge pipe j2. The clear liquid discharged from the second membrane filter i2 is transferred to the second solution clear liquid and barium reagent mixer s2. The fourth barium reagent titration valve q4 is automatically opened to drip the barium reagent in the third barium reagent storage barrel r3 into the second solution clear liquid and barium reagent mixer s2. The clear liquid discharged from the second membrane filter i2 is added with barium reagent and automatically identified and calculated by the high-definition camera identifier T.

[0056] (This process is: take the clear solution and the reactant of barium reagent 1, mix them and filter them to obtain the clear solution discharged from the second membrane filter i2, and add the barium reagent for identification.) Step 5: When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 1; At this time, the system automatically calculates that the sulfate concentration in the solution of the desulfurization reactor c is ≥ 0.01 mol / L. At this time, the flow rate display of the second flow meter f2 in the barium salt solution feed pipe b is automatically and slowly increased.

[0057] Step 6: The automatic detection device automatically cleans the first solution clear liquid and barium reagent mixer s1, the second solution clear liquid and barium reagent mixer s2, and automatically cleans the second membrane filter i2, and opens the second drain valve d2 and the third drain valve d3 to drain the cleaning water. The mechanical sampling wall l samples the clear liquid sampling port k at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled through the clear liquid quantitative sampling bottle n and then placed in the clear liquid and barium reagent mixer s1; the third barium reagent titration valve q3 is opened to allow the barium reagent in the third barium reagent storage barrel r3 that has been filled with barium reagent to be sampled through the third barium reagent quantitative sampling bottle o3. The quantitative barium reagent 3 is placed in the first solution clear liquid and barium reagent mixer s1. Repeat step 4. When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 3; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor c solution is ≥ 0.015 mol / L. At this time, the flow display of the second flowmeter f2 in the barium salt solution feed pipe b is automatically increased.

[0058] Step 7: After the automatic detection device automatically cleans the first solution clear liquid and the barium reagent mixer s1, the second solution clear liquid and the barium reagent mixer s2, the second drain valve d2 and the third drain valve d3 are opened to drain the cleaning water. The mechanical sampling wall l samples the clear liquid sampling port k at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled by the clear liquid quantitative sampling bottle n and then placed in the first solution clear liquid and the barium reagent mixer s1; the second barium reagent titration valve q2 is opened to allow the barium reagent in the second barium reagent storage barrel r2, which is already filled with barium reagent, to be sampled through the second barium reagent quantitative sampling bottle o2. The quantitative barium reagent 2 is placed in the first solution clear liquid and the barium reagent mixer s1. Repeat step 4. When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor c solution is ≥ 0.005 mol / L. At this time, the flow rate display of the second flow meter f2 in the barium salt solution feeding pipe b is automatically stabilized.

[0059] When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer s2 react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≤ the concentration in the barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor c solution is ≤ 0.005 mol / L. At this time, it automatically decreases slowly (the flow rate of the second flowmeter f2 in the barium salt solution feed pipe b is displayed.

[0060] Step 8: The mechanical sampling wall l is used to continuously sample and analyze the solution in the clear liquid sampling port k at the clear liquid reflux pipe to determine whether the sulfate is within the index range, and continuously adjust the sulfate concentration in the solution of the desulfurization reactor c within the index range.

[0061] The volume of the clear solution quantitative sampling bottle (n) is the same as that of the first barium reagent quantitative sampling bottle (o1), the second barium reagent quantitative sampling bottle (o2), and the third barium reagent quantitative sampling bottle (o3). The volume of each sampling is ensured to be consistent during sampling to ensure the accuracy of sampling detection. During the detection process, the detection result is determined by the (high-definition camera identifier T) on the color of the second solution clear solution and the barium reagent mixer (s2). The error rate is extremely low, there is no complicated calculation formula and calculation process, and the fool-proof calculation ensures the accuracy of the detection.

[0062] Preferably, different barium concentration reagents are set for the barium reagent concentrations in the first barium reagent storage barrel (r1), the second barium reagent storage barrel (r2), and the third barium reagent storage barrel (r3) according to the change in the index value range, or different barium concentration reagents are set according to the volume ratio of the clear solution quantitative sampling bottle (n) and the first barium reagent quantitative sampling bottle (o1), the second barium reagent quantitative sampling bottle (o2), and the third barium reagent quantitative sampling bottle (o3), so as to ensure the accuracy of sampling and detection.

[0063] The sulfate solution feed pipe a and the barium salt solution feed pipe b can be fed continuously or intermittently, and can realize intermittent production or continuous production. Especially when the sulfate concentration is extremely low, stop feeding and wait for the test analysis to be qualified, and then adjust the sulfate concentration again to ensure that the barium is not excessive.

[0064] See Table 1 and Table 2 for specific cases 2-5.

[0065] Table 1

[0066] Table 2

[0067] Comparative Example 1 Based on Example 1, the device does not have the second automatic switching valve u2, and the rest is the same as Example 1. As a result, after the sample is taken from the solution clear liquid quantitative sampling bottle n and the first barium reagent quantitative sampling bottle o1, the first solution clear liquid and barium reagent mixer s1 is not mixed evenly, and the material is not completely reacted, resulting in inaccurate detection data.

[0068] Comparative Example 2 Based on Example 1, the device does not have the first membrane filter i1, and the rest is the same as Example 1. The result is that when the solution clear liquid quantitative sampling bottle n is sampled, the sampled material contains turbid barium sulfate particles, which can slightly affect the accuracy of the test results.

[0069] Comparative Example 3 Based on Example 1, the first clear solution and barium reagent mixer s1 and its auxiliary devices are not included in the device, and the rest is the same as Example 1. As a result, after the second clear solution and barium reagent mixer s2 enter the clear solution quantitative sampling bottle n and the first barium reagent quantitative sampling bottle o1, white barium sulfate particles always exist in the second clear solution and barium reagent mixer s2, resulting in inaccurate detection data.

[0070] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A desulfurization reaction device capable of automatically detecting sulfate content, characterized in that: The device comprises a desulfurization reactor (c), wherein a sulfate solution feed pipe (a) and a barium salt solution feed pipe (b) are arranged above the desulfurization reactor (c), and a first exhaust valve (d1) is arranged at the bottom. The middle part of the desulfurization reactor (c) is connected to a cyclone (h) through a pipeline via a first membrane filtration circulation pump (g1), and the top of the cyclone (h) is connected to the first membrane filter (i1) and the top of the desulfurization reactor (c) in sequence through a pipeline. The bottom of the cyclone (h) is also connected to the top of the desulfurization reactor (c) through a pipeline. The first membrane filter (i1) is also connected to the third barium reagent storage tank (r3) and the top of the desulfurization reactor (c) in sequence through a pipeline. A solution clear liquid sampling port (k) is arranged on the pipeline connecting the third barium reagent storage tank (r3) and the desulfurization reactor (c), and is connected to a solution clear liquid quantitative sampling bottle (n) through a pipeline. The solution clear liquid quantitative sampling bottle (n) is connected to the first solution clear liquid and the barium reagent mixer (s1) through a pipeline. The first barium reagent storage barrel (r1) is connected to the first barium reagent quantitative sampling bottle (o1) through a pipeline via a first barium reagent titration valve (q1), and the first barium reagent quantitative sampling bottle (o1) is connected to the first solution clear liquid and the barium reagent mixer (s1) through a pipeline. The second barium reagent storage barrel (r2) is connected to the second barium reagent quantitative sampling bottle (o2) through a pipeline via a second barium reagent titration valve (q2), and the second barium reagent quantitative sampling bottle (o2) is connected to the first solution clear liquid and the barium reagent mixer (s1) through a pipeline. The third barium reagent storage barrel (r3) is connected to the third barium reagent quantitative sampling bottle (o3) through a pipeline via a third barium reagent titration valve (q3), and the third barium reagent quantitative sampling bottle (o3) is connected to the first solution clear liquid and the barium reagent mixer (s1) through a pipeline. The bottom of the first solution clear liquid and the barium reagent mixer (s1) are connected in sequence through a pipeline via a second membrane filtration circulation pump (g2), a first automatic reversing valve (u1) and a second membrane filter (i2); the top of the second membrane filter (i2) is connected to the first solution clear liquid and the barium reagent mixer (s1) through a second membrane filter circulation discharge pipe (j2); the second membrane filtration circulation pump (g2) is also connected to the top of the first solution clear liquid and the barium reagent mixer (s1) through a pipeline via a second automatic reversing valve (u2); The second membrane filter (i2) is connected to the second solution clear liquid and the barium reagent mixer (s2) through a pipeline, the third barium reagent storage tank (r3) is connected to the second solution clear liquid and the barium reagent mixer (s2) through a pipeline via a fourth barium reagent titration valve (q4), and a high-definition camera identifier (T) is provided on the second solution clear liquid and the barium reagent mixer (s2).

2. A desulfurization reaction device capable of automatically detecting sulfate content according to claim 1, characterized in that: A reaction tank discharge pump (e) is provided at the lower part of the desulfurization reactor (c).

3. A desulfurization reaction device capable of automatically detecting sulfate content according to claim 1, characterized in that: A second drain valve (d2) is provided at the bottom of the first solution clear liquid and barium reagent mixer (s1), and a third drain valve (d3) is provided at the bottom of the second solution clear liquid and barium reagent mixer (s2).

4. A desulfurization reaction device capable of automatically detecting sulfate content according to claim 1, characterized in that: The high-definition camera identifier (T) has 8 million pixels or more and is equipped with a fill light.

5. A desulfurization reaction device capable of automatically detecting sulfate content according to claim 1, characterized in that: The desulfurization reactor (c) is provided with a stirring paddle (m) inside.

6. A desulfurization reaction device capable of automatically detecting sulfate content according to claim 1, characterized in that: The first barium reagent storage barrel (r1), the second barium reagent storage barrel (r2), and the third barium reagent storage barrel (r3) are provided in plurality and are used to analyze different sulfate concentration ranges to increase the accuracy of the sampling and detection results.

7. A desulfurization reaction device capable of automatically detecting sulfate content according to any one of claims 1 to 6, characterized in that: The desulfurization reactor capable of automatically detecting the sulfate content can be connected in series in multiple sets, and the sulfate content of the desulfurization reactor (c) is gradually reduced by allowing the sulfate and the barium solution to react in multiple stages, and different barium reagent concentrations are set in the first barium reagent storage tank (r1), the second barium reagent storage tank (r2), and the third barium reagent storage tank (r3) in different desulfurization reactors (c).

8. A desulfurization reactor capable of automatically detecting sulfate content and a method of use, characterized in that: The method of use comprises the following steps: Step 1: Sulfate solution passes through the sulfate solution feed pipe (a), and barium salt solution passes through the barium salt solution feed pipe (b), and the two are mixed and enter the desulfurization reactor (c). Under the continuous stirring of the stirring paddle (m), the sulfate solution and the barium salt solution are fully mixed and reacted. The reacted materials are output to the rear unit through the reaction tank discharge pump (e) to ensure that the liquid level meter (v1) of the desulfurization reactor (c) is stably controlled. The first flow meter (f1) and the second flow meter (f2) are adjusted by the reaction concentration in the desulfurization reactor (c) obtained in the subsequent steps to control the sulfate concentration of the entire reactor within the index range; Step 2: The material in the desulfurization reactor (c) is pumped into the cyclone h through the first membrane filtration circulation pump (g1), and the material containing more barium sulfate in the afternoon directly enters the desulfurization reactor (c), and the upper logistics is filtered through the first membrane filter (i1), and the material is refluxed to the desulfurization reactor c through the first membrane filter circulation discharge pipe (j1), and the clear liquid filtered by the first membrane filter (i1) is also refluxed to the desulfurization reactor (c); the mechanical sampling wall (l) samples the solution clear liquid sampling port (k) at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively measured in the solution clear liquid quantitative sampling bottle n and then placed in the first solution clear liquid and barium reagent mixer (s1); Step 3: Open the first barium reagent titration valve (q1), allow the barium reagent in the first barium reagent storage barrel (r1) filled with the barium reagent to be sampled through the first barium reagent quantitative sampling bottle (o1), and put the quantitative barium reagent 1 into the first solution clear liquid and barium reagent mixer (s1); Step 4: After the same volume of the clear solution and the barium reagent 1 enter the first clear solution and the barium reagent mixer (s1), the first automatic reversing valve (u1) is automatically closed, the second automatic reversing valve (u2) is automatically opened, and the second membrane filtration circulation pump (g2) is automatically opened to allow the clear solution and the barium reagent 1 to fully mix and react; after a certain period of time, the first automatic reversing valve (u1) is automatically opened, the second automatic reversing valve (u2) is automatically closed, the mixed solution is filtered through the second membrane filter (i2), the mixed solution is circulated through the second membrane filter circulation discharge pipe (j2), the clear solution discharged from the second membrane filter (i2) is transferred to the second clear solution and the barium reagent mixer (s2), the fourth barium reagent titration valve (q4) is automatically opened to drip the barium reagent in the third barium reagent storage barrel (r3) into the second clear solution and the barium reagent mixer (s2), and the clear solution discharged from the second membrane filter (i2) is added with the barium reagent and automatically identified and calculated by the high-definition camera identifier T; Step 5: When the high-definition camera identifier T automatically identifies that the second solution clear liquid and the barium reagent mixer (s2) react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor c solution is ≥ the concentration in the barium reagent 1; the concentration of the barium reagent 1 in the first barium reagent storage barrel (r1) is 0.01 mol / L, the concentration of the barium reagent 2 in the second barium reagent storage barrel (r2) is 0.005 mol / L, and the concentration of the barium reagent 3 in the third barium reagent storage barrel (r3) is 0.02 mol / L. The system needs to control the sulfate concentration in the desulfurization reactor c to 0.005-0.01 mol / L; Step 6: The automatic detection device automatically cleans the first solution clear liquid and barium reagent mixer (s1), the second solution clear liquid and barium reagent mixer (s2), automatically cleans the second membrane filter (i2), opens the second drain valve (d2) and the third drain valve (d3) to drain the cleaning water, and the mechanical sampling wall (l) samples the clear liquid sampling port (k) at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled through the clear liquid quantitative sampling bottle (n) and then placed in the clear liquid and barium reagent mixer (s1); the third barium reagent titration valve (q3) is opened to allow the third barium reagent storage barrel (r3) already filled with barium reagent to The barium reagent in the solution is sampled through the third barium reagent quantitative sampling bottle (o3), and the quantitative barium reagent 3 is placed in the first solution clear liquid and the barium reagent mixer s1; repeat step 4, when the high-definition camera identifier (T) automatically identifies that the second solution clear liquid and the barium reagent mixer (s2) react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor (c) solution is ≥ the concentration in the barium reagent 3; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor (c) solution is ≥ 0.02 mol / L, and the flow display of the second flowmeter (f2) in the barium salt solution feed pipe (b) is automatically increased; Step 7: The automatic detection device automatically cleans the first solution clear liquid and barium reagent mixer (s1), the second solution clear liquid and barium reagent mixer (s2), and then opens the second drain valve (d2) and the third drain valve (d3) to drain the cleaning water. The mechanical sampling wall (l) samples the clear liquid sampling port (k) at the clear liquid reflux pipe, and the sampled clear liquid is quantitatively sampled through the clear liquid quantitative sampling bottle (n) and then placed in the first solution clear liquid and barium reagent mixer (s1); the second barium reagent titration valve (q2) is opened to allow the barium reagent in the second barium reagent storage barrel (r2) filled with the barium reagent to pass through the first barium reagent titration valve (q3). Take a sample from the two barium reagent quantitative sampling bottle (o2), and put the quantitative barium reagent 2 into the first solution clear liquid and the barium reagent mixer (s1); repeat step 4, when the high-definition camera identifier (T) automatically identifies that the second solution clear liquid and the barium reagent mixer (s2) react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor (c) solution is ≥ the concentration in the barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor (c) solution is ≥ 0.005 mol / L, and the flow display of the second flowmeter (f2) in the barium salt solution feed pipe (b) is automatically stabilized; When the high-definition camera identifier (T) automatically identifies that the second solution clear liquid and the barium reagent mixer (s2) react to produce white barium sulfate particles, it indicates that the sulfate concentration in the desulfurization reactor (c) solution is ≤ the concentration in the barium reagent 2; at this time, the system automatically calculates that the sulfate concentration in the desulfurization reactor (c) solution is ≤ 0.005 mol / L, and then automatically and slowly decreases (the flow rate of the second flow meter (f2) in the barium salt solution feed pipe (b) is displayed; Step 8: Sampling and analyzing the clear liquid solution in the clear liquid sampling port (k) at the clear liquid reflux pipe is continuously performed through the mechanical sampling wall (l) to determine whether the sulfate is within the index range, and continuously adjust the sulfate concentration in the solution of the desulfurization reactor (c) within the index range.

9. A desulfurization reactor capable of automatically detecting sulfate content and a method of use, characterized in that: The concentration of the barium reagent in the first barium reagent storage barrel (r1), the second barium reagent storage barrel (r2), and the third barium reagent storage barrel (r3) is set with different barium concentration reagents according to the change of the index value range, or different barium concentration reagents are set according to the volume ratio of the clear solution quantitative sampling bottle (n) and the first barium reagent quantitative sampling bottle (o1), the second barium reagent quantitative sampling bottle (o2), and the third barium reagent quantitative sampling bottle (o3) to ensure the accuracy of sampling and detection; The sulfate solution feed pipe (a) and the barium salt solution feed pipe (b) can be fed continuously or intermittently, realizing intermittent production or continuous production.

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