A production process wastewater detection system

Abstract

The invention discloses a production process wastewater detection system, relates to the technical field of wastewater detection, and comprises the following modules: a physical detection module, which obtains an RGB image of a static pool of acrylic emulsion production wastewater, and identifies polymer gel in the image through a visual recognition model to obtain a visual gel value; in this scheme, the physical detection module is used to visually detect the acrylic emulsion wastewater to obtain a visual gel value, and the viscosity value in the acrylic emulsion wastewater is detected by a viscosity sensor, and the physical concentration coefficient of the gel is obtained by combining the visual gel value and the viscosity value, so as to facilitate the judgment of the gel concentration in the wastewater, and further facilitate the improvement of the accuracy of the detection result, and further facilitate the feedback to the management personnel whether the gel needs to be cleaned according to the detection result, which is beneficial to avoid the gel clogging the filter plate and affecting the efficiency of wastewater treatment.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater detection, in particular to a production process wastewater detection system. Background Art

[0002] Acrylic emulsion is an important chemical product. It is an emulsion-like substance made of acrylic ester monomers through emulsion polymerization. Acrylic emulsion has many excellent properties, such as good film-forming property, which can form a uniform and tough film on the surface of objects; excellent adhesion, which can firmly adhere to a variety of substrates; good water resistance and weather resistance, which can maintain stable performance under different environmental conditions. It is widely used in architectural coatings, adhesives, textile printing and dyeing and other fields, providing reliable material support for the development of these industries.

[0003] Wastewater is generated during the production of acrylic emulsion. During the production of acrylic emulsion, if the polymerization reaction of acrylate monomers is not completely carried out, unreacted acrylate monomers will exist in the system. In the subsequent wastewater treatment process, these unreacted acrylate monomers will continue to polymerize with other oligomers to form polymer gels. For example, when the reaction temperature, reaction time and other conditions are not properly controlled, some acrylic monomers do not fully participate in the polymerization reaction. In the wastewater environment, as time goes by and conditions change, these unreacted monomers may re-initiate polymerization under certain triggering factors (such as temperature fluctuations, pH changes, etc.), thereby producing gel. In the wastewater treatment process, this polymer gel needs to be detected and treated first to avoid the high gel concentration clogging the filter plate during the filtration of wastewater, affecting the wastewater treatment efficiency. In order to facilitate the detection and identification of the concentration of polymer gel in wastewater during the production of acrylic acid solution, we propose a production process wastewater detection system. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides a production process wastewater detection system to solve the above-mentioned problems in the prior art.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a production process wastewater detection system, including the following modules:

[0008] The physical detection module obtains the RGB image of the acrylic emulsion production wastewater standing tank, identifies the polymer gel in the image through the visual recognition model to obtain the visual gel value, obtains the gel viscosity value in the acrylic emulsion production wastewater standing tank, and obtains the gel physical concentration coefficient through the visual gel value and the gel viscosity value;

[0009] The ultraviolet spectrum detection module obtains the ultraviolet spectrum absorbance values ​​of reference gels of different concentrations, samples the acrylic emulsion production wastewater in the static pool, obtains the ultraviolet spectrum absorbance value of the sample gel, and obtains the ultraviolet spectrum gel concentration coefficient by comparing the ultraviolet spectrum absorbance value of the sample gel with the ultraviolet spectrum absorbance value of the reference gels of different concentrations;

[0010] The gel concentration integration module obtains the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient, and obtains the final gel concentration coefficient through the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient;

[0011] The production feedback module obtains the gel concentration feedback reference coefficient, compares the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient, and gives feedback to the management personnel based on the comparison results.

[0012] Preferably, in the physical detection module, the polymer gel in the image is identified by a visual recognition model to obtain a visual gel value, specifically:

[0013] Step 1: grayscale processing is performed on multiple RGB images of different viewing angles, and the area proportions of different grayscales in each image after grayscale processing are respectively identified, and the gel grayscale value is set. The gel position is locked in each image after grayscale processing by the gel grayscale value to obtain multiple gel area proportion values;

[0014] Step 2: Perform data cleaning on the multiple gel area percentage values ​​obtained, and perform weighted average on the multiple gel area percentage values ​​after data cleaning to obtain the visual gel value.

[0015] Preferably, in the physical detection module, the calculation method of obtaining the physical concentration coefficient of the gel by using the visual gel value and the gel viscosity value is specifically as follows:

[0016] ,

[0017] Where Wn represents the physical concentration coefficient of gel, Sn represents the visual gel value, and Dn represents the gel viscosity value. and are weights, , .

[0018] Preferably, the ultraviolet spectrum absorbance values ​​of reference gels of different concentrations are obtained in the ultraviolet spectrum detection module, specifically:

[0019] Step 1: preparing ten polymer gel standards with different concentrations from low to high, and sampling the ten polymer gel standards by equal weight to obtain ten gel samples of equal weight;

[0020] Step 2: Prepare eleven equal volumes of distilled water solution, dissolve ten equal weights of gel sample in ten equal volumes of distilled water solution, respectively, to obtain ten sample solutions and one distilled water solution, inject the ten sample solutions into cuvettes respectively, set the wavelength range of the UV spectrophotometer, use the unused distilled water solution as a reference, perform UV spectrum scans on the ten cuvettes and record their absorbance values.

[0021] Preferably, in the ultraviolet spectrum detection module, the ultraviolet spectrum gel concentration coefficient is obtained by comparing the ultraviolet spectrum absorbance value of the sample gel with the ultraviolet spectrum absorbance value of the reference gel of different concentrations, specifically:

[0022] Step 1: Obtain the UV spectrum absorbance value of the sample gel and mark it as , arrange the UV spectra absorbance values ​​of reference gels of different concentrations from small to large, select two reference gels whose absorbance values ​​are closest to the UV spectra absorbance values ​​of the sample gels, and mark the absorbance values ​​of the two reference gels as and ;

[0023] Step 2: Compare and and If Greater than and Less than , then get and concentration, and and The concentration of is averaged to obtain the UV spectrum gel concentration coefficient;

[0024] like Greater than and Greater than , then compare and The size relationship is selected and the smaller one is marked as , get concentration, set the concentration error preset threshold, through The concentration of the UV spectrum gel concentration coefficient is obtained by subtracting the concentration of the UV spectrum gel from the preset concentration error threshold.

[0025] like Less than and Less than , then compare and The size relationship is selected and the larger one is marked as , get concentration, set the concentration error preset threshold, through The concentration of the UV spectrum gel concentration coefficient is obtained by subtracting the concentration from the preset threshold of the concentration error.

[0026] Preferably, the final gel concentration coefficient is calculated in the gel concentration confirmation module as follows:

[0027] ,

[0028] Among them, Zn represents the final gel concentration coefficient, Yn represents the UV spectrum gel concentration coefficient, and Wn represents the gel physical concentration coefficient. and are weights, , .

[0029] Preferably, the gel concentration feedback reference coefficient is obtained in the production feedback module, specifically:

[0030] Step 1: Obtain the final gel concentration coefficient in each acrylic emulsion production in the past three months, obtain the amount of acrylic ester monomer added in each acrylic emulsion production process in the past three months, and establish a historical gel concentration database;

[0031] Step 2: setting an acrylate monomer addition error value, setting an acrylate monomer addition standard value, and obtaining an acrylate monomer addition maximum value by summing the acrylate monomer addition error value and the acrylate monomer addition standard value;

[0032] Step 3: capturing production batches in which the amount of acrylate monomer added is greater than the maximum value of acrylate monomer addition in the historical gel concentration database, and marking the final gel concentration coefficients in these production batches to obtain multiple gel excess concentration coefficients;

[0033] Step 4: Arrange multiple gel excess concentration coefficients from small to large, delete the minimum and maximum values ​​among the gel excess concentration coefficients, set the gel concentration reduction value, and obtain the gel concentration feedback reference coefficient through the remaining multiple gel excess concentration coefficients and the gel concentration reduction value.

[0034] Preferably, the calculation method of the gel concentration feedback reference coefficient is specifically as follows:

[0035] ,

[0036] Wherein, Jc represents the gel concentration feedback reference coefficient, Cn represents the gel excess concentration coefficient, and n represents the number of remaining gel excess concentration coefficients. , Jx is expressed as the gel concentration reduction value.

[0037] Preferably, the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient is compared in the production feedback module, and feedback is given to the management personnel according to the comparison result, specifically: obtaining the gel concentration feedback reference coefficient, obtaining the final gel concentration coefficient, and comparing the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient;

[0038] If the final gel concentration coefficient is greater than the gel concentration feedback reference coefficient, and the final gel concentration coefficient is more than twice the gel concentration feedback reference coefficient, the management personnel will be notified that the polymer gel in the wastewater needs to be cleaned up, and the management personnel will be reminded to reduce the amount of acrylic acid ester monomer added;

[0039] If the final gel concentration coefficient is greater than the gel concentration feedback reference coefficient, and the final gel concentration coefficient is less than twice the gel concentration feedback reference coefficient, the management personnel are notified that there is no need to clean up the polymer gel in the wastewater, and the management personnel are reminded to reduce the amount of acrylic acid ester monomer added;

[0040] If the final gel concentration coefficient is less than the gel concentration feedback reference coefficient, the management personnel are informed that there is no need to clean up the polymer gel in the wastewater.

[0041] (III) Beneficial effects

[0042] The present invention provides a production process wastewater detection system, which has the following beneficial effects:

[0043] (1) In this scheme, the visual detection module is used to visually detect the acrylic emulsion wastewater to obtain the visual gel value, and the viscosity sensor is used to detect the viscosity value in the acrylic emulsion wastewater. The physical concentration coefficient of the gel is obtained by combining the visual gel value and the viscosity value, so as to facilitate the judgment of the gel concentration in the wastewater, thereby facilitating the improvement of the accuracy of the detection results, and then facilitating the feedback to the management personnel whether the gel needs to be cleaned according to the detection results, which is beneficial to avoid the gel clogging the filter plate and affecting the efficiency of wastewater treatment;

[0044] (2) In this scheme, the ultraviolet spectrum detection module is used to identify and detect the polymer gel concentration in the wastewater to obtain the ultraviolet spectrum gel concentration coefficient, and then the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient are summarized and combined through the gel concentration integration module, so as to facilitate the detection of the gel concentration in the wastewater through multiple channels, and further facilitate the improvement of the accuracy of the detection results, which is beneficial to avoid the result error caused by single-sex detection, and further facilitate the feedback to the management personnel whether the gel needs to be cleaned according to the test results, which is further beneficial to avoid the gel clogging the filter plate and affecting the efficiency of wastewater treatment;

[0045] (3) In this scheme, the production feedback module determines whether the gel concentration in the wastewater requires manual intervention and cleaning according to the final gel concentration coefficient, thereby reminding the management personnel whether the filter plate needs to be cleaned according to the gel concentration. It is also convenient to remind the management personnel whether the addition of acrylic acid ester monomers is excessive when producing acrylic acid emulsion according to the gel concentration, which is beneficial to avoid the subsequent generation of excessive polymer gel and the waste of excessive acrylic acid ester monomers when producing acrylic acid emulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a structural schematic diagram of a production process wastewater detection system of the present invention;

[0047] Figure 2 The present invention is a flowchart of a production process wastewater detection system. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1-Figure 2 The present invention provides a production process wastewater detection system, comprising the following modules:

[0050] The physical detection module obtains the RGB image of the acrylic emulsion production wastewater standing tank, identifies the polymer gel in the image through the visual recognition model to obtain the visual gel value, obtains the gel viscosity value in the acrylic emulsion production wastewater standing tank, and obtains the gel physical concentration coefficient through the visual gel value and the gel viscosity value;

[0051] The ultraviolet spectrum detection module obtains the ultraviolet spectrum absorbance values ​​of reference gels of different concentrations, samples the acrylic emulsion production wastewater in the static pool, obtains the ultraviolet spectrum absorbance value of the sample gel, and obtains the ultraviolet spectrum gel concentration coefficient by comparing the ultraviolet spectrum absorbance value of the sample gel with the ultraviolet spectrum absorbance value of the reference gels of different concentrations;

[0052] The gel concentration integration module obtains the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient, and obtains the final gel concentration coefficient through the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient;

[0053] The production feedback module obtains the gel concentration feedback reference coefficient, compares the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient, and provides feedback to the management personnel based on the comparison results;

[0054] In the physical detection module, the calculation method of the gel physical concentration coefficient is obtained by using the visual gel value and the gel viscosity value, specifically:

[0055] ,

[0056] Where Wn represents the physical concentration coefficient of gel, Sn represents the visual gel value, and Dn represents the gel viscosity value. and are weights, , ;

[0057] The final gel concentration coefficient is calculated in the gel concentration confirmation module as follows:

[0058] ,

[0059] Among them, Zn represents the final gel concentration coefficient, Yn represents the UV spectrum gel concentration coefficient, and Wn represents the gel physical concentration coefficient. and are weights, , .

[0060] In this embodiment, in this scheme, the visual detection module is used to visually detect the acrylic emulsion wastewater to obtain a visual gel value, and the viscosity value in the acrylic emulsion wastewater is detected by a viscosity sensor. The visual gel value and the viscosity value are combined to obtain a gel physical concentration coefficient, so as to facilitate the determination of the gel concentration in the wastewater, thereby facilitating the improvement of the accuracy of the detection result, and thereby facilitating the feedback to the management personnel whether the gel needs to be cleaned according to the detection result, which is beneficial to avoid the gel clogging the filter plate and affecting the efficiency of wastewater treatment;

[0061] In this scheme, the ultraviolet spectrum detection module is used to identify and detect the polymer gel concentration in the wastewater to obtain the ultraviolet spectrum gel concentration coefficient, and then the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient are summarized and combined through the gel concentration integration module, so as to facilitate the detection of the gel concentration in the wastewater through multiple channels, and further facilitate the improvement of the accuracy of the detection results, which is beneficial to avoid the result error caused by single-sex detection, and further facilitate the feedback to the management personnel whether the gel needs to be cleaned according to the test results, which is further beneficial to avoid the gel clogging the filter plate and affecting the efficiency of wastewater treatment;

[0062] In this scheme, the production feedback module determines whether the gel concentration in the wastewater needs manual intervention and cleaning according to the final gel concentration coefficient, so as to remind the management personnel whether the filter plate needs to be cleaned according to the gel concentration, and remind the management personnel whether the acrylic acid ester monomer is excessively added when producing acrylic acid emulsion according to the gel concentration, so as to avoid the subsequent generation of excessive polymer gel and the waste of excessive acrylic acid ester monomer when producing acrylic acid emulsion.

[0063] It is worth mentioning that the weight values ​​in this scheme can be obtained through the hierarchical analysis method, which will not be elaborated here.

[0064] In the physical detection module, the visual recognition model is used to identify the polymer gel in the image to obtain the visual gel value, which is specifically:

[0065] Step 1: grayscale processing is performed on multiple RGB images of different viewing angles, and the area proportions of different grayscales in each image after grayscale processing are respectively identified, and the gel grayscale value is set. The gel position is locked in each image after grayscale processing by the gel grayscale value to obtain multiple gel area proportion values;

[0066] Step 2: Perform data cleaning on the multiple gel area percentage values ​​obtained, and perform weighted average on the multiple gel area percentage values ​​after data cleaning to obtain the visual gel value.

[0067] In this embodiment, by grayscale processing the RGB image, the polymer gel in the image is identified according to the grayscale value, and finally the concentration of the polymer gel in the wastewater is analyzed according to the area ratio of the polymer gel in the image, so as to facilitate visual analysis of the concentration of the gel in the wastewater;

[0068] It is mentioned that the value of the gel grayscale value set in this scheme can be obtained by weight analysis method, which will not be elaborated here.

[0069] The UV spectrum absorbance values ​​of reference gels of different concentrations were obtained in the UV spectrum detection module, specifically:

[0070] Step 1: preparing ten polymer gel standards with different concentrations from low to high, and sampling the ten polymer gel standards by equal weight to obtain ten gel samples of equal weight;

[0071] Step 2: Prepare eleven equal volumes of distilled water solution, dissolve ten equal weights of gel sample in ten equal volumes of distilled water solution, respectively, to obtain ten sample solutions and one distilled water solution, inject the ten sample solutions into cuvettes respectively, set the wavelength range of the UV spectrophotometer, use the unused distilled water solution as a reference, perform UV spectrum scans on the ten cuvettes and record their absorbance values.

[0072] In this embodiment, gel standards of different concentrations are prepared, and then placed in cuvettes for ultraviolet spectroscopy scanning to obtain the absorbance value of each gel concentration, thereby facilitating the subsequent reverse calculation of the gel concentration of the sample based on the absorbance value of the sample.

[0073] In the UV spectrum detection module, the UV spectrum gel concentration coefficient is obtained by comparing the UV spectrum absorbance value of the sample gel with the UV spectrum absorbance value of the reference gel of different concentrations, which is specifically:

[0074] Step 1: Obtain the UV spectrum absorbance value of the sample gel and mark it as , arrange the UV spectra absorbance values ​​of reference gels of different concentrations from small to large, select two reference gels whose absorbance values ​​are closest to the UV spectra absorbance values ​​of the sample gels, and mark the absorbance values ​​of the two reference gels as and ;

[0075] Step 2: Compare and and If Greater than and Less than , then get and concentration, and and The concentration of is averaged to obtain the UV spectrum gel concentration coefficient;

[0076] like Greater than and Greater than , then compare and The size relationship is selected and the smaller one is marked as , get concentration, set the concentration error preset threshold, through The concentration of the UV spectrum gel concentration coefficient is obtained by subtracting the concentration of the UV spectrum gel from the preset concentration error threshold.

[0077] like Less than and Less than , then compare and The size relationship is selected and the larger one is marked as , get concentration, set the concentration error preset threshold, through The concentration of the UV spectrum gel concentration coefficient is obtained by subtracting the concentration from the preset threshold of the concentration error.

[0078] In this embodiment, the absorbance value of the sample gel is compared with the absorbance value of the reference gel, so as to capture the two gel concentrations with the closest absorbance values ​​in the reference gel, and then compare them based on the absorbance values ​​of the two reference gels, the absorbance value of the sample gel and the preset threshold value of the concentration error, so as to facilitate more accurate judgment of the concentration of the sample gel;

[0079] It is worth mentioning that the value of the preset threshold in this solution can be obtained by weight analysis method, which will not be elaborated here.

[0080] The gel concentration feedback reference coefficient is obtained in the production feedback module, specifically:

[0081] Step 1: Obtain the final gel concentration coefficient in each acrylic emulsion production in the past three months, obtain the amount of acrylic ester monomer added in each acrylic emulsion production process in the past three months, and establish a historical gel concentration database;

[0082] Step 2: setting an acrylate monomer addition error value, setting an acrylate monomer addition standard value, and obtaining an acrylate monomer addition maximum value by summing the acrylate monomer addition error value and the acrylate monomer addition standard value;

[0083] Step 3: capturing production batches in which the amount of acrylate monomer added is greater than the maximum value of acrylate monomer addition in the historical gel concentration database, and marking the final gel concentration coefficients in these production batches to obtain multiple gel excess concentration coefficients;

[0084] Step 4: Arrange multiple gel excess concentration coefficients from small to large, delete the minimum and maximum values ​​of the gel excess concentration coefficients, set the gel concentration reduction value, and obtain the gel concentration feedback reference coefficient through the remaining multiple gel excess concentration coefficients and the gel concentration reduction value;

[0085] The calculation method of the gel concentration feedback reference coefficient is as follows:

[0086] ,

[0087] Wherein, Jc represents the gel concentration feedback reference coefficient, Cn represents the gel excess concentration coefficient, and n represents the number of remaining gel excess concentration coefficients. , Jx is expressed as the gel concentration reduction value.

[0088] In this embodiment, a historical gel concentration database is established by collecting historical data, so that it is convenient to infer the gel concentration feedback reference coefficient based on the historical gel concentration database, and then it is convenient to judge whether the sample gel concentration is too high based on the concentration of the sample gel, and then it is convenient to judge whether manual intervention is needed to clean up the gel in the wastewater based on the sample gel concentration, and it is also convenient to judge whether it is necessary to remind the management personnel to reduce the addition amount of acrylic acid ester monomer, which is more beneficial to avoid the subsequent generation of excessive polymer gel, and it is also beneficial to avoid excessive waste of acrylic acid ester monomer when producing acrylic emulsion.

[0089] In the production feedback module, the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient is compared, and feedback is given to the management personnel based on the comparison result, specifically: obtaining the gel concentration feedback reference coefficient, obtaining the final gel concentration coefficient, and comparing the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient;

[0090] If the final gel concentration coefficient is greater than the gel concentration feedback reference coefficient, and the final gel concentration coefficient is more than twice the gel concentration feedback reference coefficient, the management personnel will be notified that the polymer gel in the wastewater needs to be cleaned up, and the management personnel will be reminded to reduce the amount of acrylic acid ester monomer added;

[0091] If the final gel concentration coefficient is greater than the gel concentration feedback reference coefficient, and the final gel concentration coefficient is less than twice the gel concentration feedback reference coefficient, the management personnel are notified that there is no need to clean up the polymer gel in the wastewater, and the management personnel are reminded to reduce the amount of acrylic acid ester monomer added;

[0092] If the final gel concentration coefficient is less than the gel concentration feedback reference coefficient, the management personnel are informed that there is no need to clean up the polymer gel in the wastewater.

[0093] In this embodiment, feedback is given to the management personnel through the comparison result between the gel concentration feedback reference coefficient and the final gel concentration coefficient, so as to judge whether manual intervention is needed to clean up the gel in the wastewater according to the sample gel concentration, and whether it is necessary to remind the management personnel to reduce the addition amount of acrylic acid ester monomer, which is more beneficial to avoid the subsequent generation of excessive polymer gel, and is also beneficial to avoid excessive waste of acrylic acid ester monomer when producing acrylic emulsion.

[0094] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. A person of ordinary skill in the art may appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein may be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution.

[0095] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0096] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A production process wastewater detection system, characterized in that: Includes the following modules: The physical detection module obtains the RGB image of the acrylic emulsion production wastewater standing tank, identifies the polymer gel in the image through the visual recognition model to obtain the visual gel value, obtains the gel viscosity value in the acrylic emulsion production wastewater standing tank, and obtains the gel physical concentration coefficient through the visual gel value and the gel viscosity value; The ultraviolet spectrum detection module obtains the ultraviolet spectrum absorbance values ​​of reference gels of different concentrations, samples the acrylic emulsion production wastewater in the static pool, obtains the ultraviolet spectrum absorbance value of the sample gel, and obtains the ultraviolet spectrum gel concentration coefficient by comparing the ultraviolet spectrum absorbance value of the sample gel with the ultraviolet spectrum absorbance value of the reference gels of different concentrations; The gel concentration integration module obtains the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient, and obtains the final gel concentration coefficient through the ultraviolet spectrum gel concentration coefficient and the gel physical concentration coefficient; The production feedback module obtains the gel concentration feedback reference coefficient, compares the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient, and provides feedback to the management personnel based on the comparison results; In the physical detection module, the calculation method of the gel physical concentration coefficient is obtained by using the visual gel value and the gel viscosity value, specifically: ， Where Wn represents the physical concentration coefficient of gel, Sn represents the visual gel value, and Dn represents the gel viscosity value. and are weights, , ; The final gel concentration coefficient is calculated in the gel concentration confirmation module as follows: ， Among them, Zn represents the final gel concentration coefficient, Yn represents the UV spectrum gel concentration coefficient, and Wn represents the gel physical concentration coefficient. and are weights, , ; The gel concentration feedback reference coefficient is obtained in the production feedback module, specifically: Step 1: Obtain the final gel concentration coefficient in each acrylic emulsion production in the past three months, obtain the amount of acrylic ester monomer added in each acrylic emulsion production process in the past three months, and establish a historical gel concentration database; Step 2: setting an acrylate monomer addition error value, setting an acrylate monomer addition standard value, and obtaining an acrylate monomer addition maximum value by summing the acrylate monomer addition error value and the acrylate monomer addition standard value; Step 3: capturing production batches in which the amount of acrylate monomer added is greater than the maximum value of acrylate monomer addition in the historical gel concentration database, and marking the final gel concentration coefficients in these production batches to obtain multiple gel excess concentration coefficients; Step 4: Arrange multiple gel excess concentration coefficients from small to large, delete the minimum and maximum values ​​of the gel excess concentration coefficients, set the gel concentration reduction value, and obtain the gel concentration feedback reference coefficient through the remaining multiple gel excess concentration coefficients and the gel concentration reduction value; The calculation method of the gel concentration feedback reference coefficient is as follows: ， Wherein, Jc represents the gel concentration feedback reference coefficient, Cn represents the gel excess concentration coefficient, and n represents the number of remaining gel excess concentration coefficients. , Jx is expressed as the gel concentration reduction value.

2. A production process wastewater detection system according to claim 1, characterized in that: In the physical detection module, the visual recognition model is used to identify the polymer gel in the image to obtain the visual gel value, which is specifically: Step 1: grayscale processing is performed on multiple RGB images of different viewing angles, and the area proportions of different grayscales in each image after grayscale processing are respectively identified, and the gel grayscale value is set. The gel position is locked in each image after grayscale processing by the gel grayscale value to obtain multiple gel area proportion values; Step 2: Perform data cleaning on the multiple gel area percentage values ​​obtained, and perform weighted average on the multiple gel area percentage values ​​after data cleaning to obtain the visual gel value.

3. A production process wastewater detection system according to claim 1, characterized in that: The UV spectrum absorbance values ​​of reference gels of different concentrations were obtained in the UV spectrum detection module, specifically: Step 1: preparing ten polymer gel standards with different concentrations from low to high, and sampling the ten polymer gel standards by equal weight to obtain ten gel samples of equal weight; Step 2: Prepare eleven equal volumes of distilled water solution, dissolve ten equal weights of gel sample in ten equal volumes of distilled water solution, respectively, to obtain ten sample solutions and one distilled water solution, inject the ten sample solutions into cuvettes respectively, set the wavelength range of the UV spectrophotometer, use the unused distilled water solution as a reference, perform UV spectrum scans on the ten cuvettes and record their absorbance values.

4. A production process wastewater detection system according to claim 1, characterized in that: In the UV spectrum detection module, the UV spectrum gel concentration coefficient is obtained by comparing the UV spectrum absorbance value of the sample gel with the UV spectrum absorbance value of the reference gel of different concentrations, which is specifically: Step 1: Obtain the UV spectrum absorbance value of the sample gel and mark it as , arrange the UV spectra absorbance values ​​of reference gels of different concentrations from small to large, select two reference gels whose absorbance values ​​are closest to the UV spectra absorbance values ​​of the sample gels, and mark the absorbance values ​​of the two reference gels as and ; Step 2: Compare and and If Greater than and Less than , then get and concentration, and and The concentration of is averaged to obtain the UV spectrum gel concentration coefficient; like Greater than and Greater than , then compare and The size relationship is selected and the smaller one is marked as , get concentration, set the concentration error preset threshold, through The concentration of the UV spectrum gel concentration coefficient is obtained by subtracting the concentration of the UV spectrum gel from the preset concentration error threshold. like Less than and Less than , then compare and The size relationship is selected and the larger one is marked as , get concentration, set the concentration error preset threshold, through The concentration of the UV spectrum gel concentration coefficient is obtained by subtracting the concentration from the preset threshold of the concentration error.

5. A production process wastewater detection system according to claim 1, characterized in that: In the production feedback module, the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient is compared, and feedback is given to the management personnel based on the comparison result, specifically: obtaining the gel concentration feedback reference coefficient, obtaining the final gel concentration coefficient, and comparing the size relationship between the gel concentration feedback reference coefficient and the final gel concentration coefficient; If the final gel concentration coefficient is greater than the gel concentration feedback reference coefficient, and the final gel concentration coefficient is more than twice the gel concentration feedback reference coefficient, the management personnel will be notified that the polymer gel in the wastewater needs to be cleaned up, and the management personnel will be reminded to reduce the amount of acrylic acid ester monomer added; If the final gel concentration coefficient is greater than the gel concentration feedback reference coefficient, and the final gel concentration coefficient is less than twice the gel concentration feedback reference coefficient, the management personnel are notified that there is no need to clean up the polymer gel in the wastewater, and the management personnel are reminded to reduce the amount of acrylic acid ester monomer added; If the final gel concentration coefficient is less than the gel concentration feedback reference coefficient, the management personnel are informed that there is no need to clean up the polymer gel in the wastewater.

Images