A coal chemical concentrated brine mixing method

Abstract

The present invention relates to the field of brine treatment, and discloses a coal chemical concentrated brine mixing method, comprising: determining the commissioning time of the desalted water station by obtaining the effluent conductivity and effluent pH value of the desalted water station, obtaining the feed usage data and effluent image of the desalted water station according to the commissioning time; determining the operating state of the desalted water station according to the feed usage data and effluent image; and generating a control scheme according to the operating state. Thus, the processing efficiency of concentrated brine is improved, and the effective utilization of concentrated brine is achieved.

Description

Technical Field

[0001] The invention relates to the field of brine treatment, and in particular to a method for mixing concentrated brine in coal chemical industry. Background Art

[0002] The desalted water station is an important part of the CDQ thermal system. Its function is to produce desalted water that can meet the safe operation requirements of the boiler. Desalted water is also called ultrapure water. The remaining water after extracting ultrapure water is concentrated brine.

[0003] Existing desalted water stations often have the following technical problems:

[0004] First, there is a lack of unified standards for the treatment of concentrated brine, which is often treated as wastewater, resulting in a certain amount of resource waste;

[0005] Second, when the remaining brine is treated, it is usually diluted directly, and the treated water resources may not meet the recycling requirements;

[0006] Third, the effluent from the desalting station (i.e., brine) contains a large amount of organic matter, which will produce more pollutants under the action of microorganisms, affecting the mixed utilization of brine. However, there is currently a lack of effective means to monitor the organic matter content in brine, and manual observation is likely to lead to inaccurate test results. Summary of the invention

[0007] The summary of the invention is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The summary of the invention is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0008] The present invention proposes a coal chemical concentrated brine mixing method to solve one or more of the technical problems mentioned in the above background technology part.

[0009] The present invention provides a coal chemical concentrated brine mixing method, comprising:

[0010] The conductivity of the outlet water of the desalted water station is monitored by the conductivity detection equipment installed in the outlet water pipe of the desalted water station; the pH value of the outlet water of the desalted water station is monitored by the pH detection equipment installed in the outlet water pipe of the desalted water station;

[0011] When it is monitored that the average value of the outlet water conductivity in the target time period is greater than the preset conductivity threshold and the average value of the outlet water pH value is greater than the preset outlet water pH value threshold, the commissioning time of the desalted water station is determined; if the commissioning time of the desalted water station is greater than the first preset time and less than the second preset time, the feeding and use data and the outlet water image of the desalted water station are obtained;

[0012] The operating status of the desalted water station is determined based on the feed usage data and the effluent image; based on the operating status, a first control scheme for the electronic flow direction regulating valve is generated to enable the electronic flow direction regulating valve to perform the following processing steps: if the operating status indicates that the desalted water station is in a water pollution state, the electronic flow direction regulating valve installed on the outlet pipe is used to control the concentrated brine in the outlet pipe to flow into the first branch pipe, and the concentrated brine enters the waste liquid treatment equipment through the first branch pipe; if the operating status indicates that the desalted water station is in an unpolluted water state, the electronic flow direction regulating valve is used to control the concentrated brine in the outlet pipe to flow into the second branch pipe, and the concentrated brine is converged and mixed with the recycled water in the recycled water pipe through the second branch pipe to obtain mixed water, and the mixed water enters the reuse equipment through the mixed water pipe.

[0013] Optionally, the coal chemical concentrated brine mixing method of the present invention further comprises:

[0014] If the operation status indicates that the desalted water station is in an uncontaminated water quality state, a mixing scheme is generated according to the outlet water conductivity and the outlet water pH value, and the mixing scheme includes a first flow rate control signal for a first solenoid valve provided on the second branch pipeline, a second flow rate control signal for a second solenoid valve provided on the recovery water pipeline, and a pre-configured target mixing concentration;

[0015] Sending a first flow rate control signal to a first solenoid valve, sending a second flow rate control signal to a second solenoid valve, and collecting mixed water indices through a mixed water indices collection device disposed on a recycled water pipeline, wherein the mixed water indices include actual conductivity of the mixed water;

[0016] According to the actual conductivity of the mixed water, the actual mixed concentration is generated, and the actual mixed concentration is compared with the target mixed concentration to determine whether the mixed water in the mixed water pipeline meets the standard. If the mixed water does not meet the standard, the mixing plan is adjusted according to the concentration deviation.

[0017] Optionally, the coal chemical concentrated brine mixing method of the present invention further comprises:

[0018] If the production duration is greater than or equal to the second preset duration, a material feeding usage data sequence within the historical time period is obtained, wherein each material feeding usage data in the material feeding usage data sequence corresponds to a material feeding time point;

[0019] Perform extreme value analysis on the feeding data series to obtain multiple extreme value points in the historical time period and the feeding time point corresponding to each extreme value point. According to the multiple extreme value points and the feeding time point corresponding to each extreme value point, generate multiple predicted extreme value points and the predicted feeding time point corresponding to each predicted extreme point:

[0020] A second control scheme for the electron flow direction regulating valve is generated according to the multiple predicted extreme value points and the predicted feeding time point corresponding to each predicted extreme value point.

[0021] Optionally, the second regulation scheme is generated by the following steps:

[0022] For each predicted feeding time point, a control time interval corresponding to the predicted feeding time point is generated according to the predicted feeding usage corresponding to the predicted feeding time point, and the control time interval includes a control start time point and a control end time point; according to the control time interval corresponding to each predicted feeding time point, a second control scheme for the electronic flow direction regulating valve is generated, wherein the control start time point is the time point when the concentrated brine in the water outlet pipe is controlled to flow into the first branch pipe, and the control end time point is the time point when the concentrated brine in the water outlet pipe is controlled to flow into the second branch pipe.

[0023] Optionally, the coal chemical concentrated brine mixing method of the present invention further comprises:

[0024] Acquire an adjustment record set within a first time period, wherein the adjustment records in the adjustment record set include a concentration before adjustment, a concentration after adjustment, a flow rate of the first solenoid valve before adjustment, a flow rate of the second solenoid valve before adjustment, a flow rate of the first solenoid valve after adjustment, and a flow rate of the second solenoid valve after adjustment;

[0025] The mixing adjustment parameters are determined by adjusting the set of records.

[0026] Optionally, the coal chemical concentrated brine mixing method of the present invention further comprises:

[0027] The mixing scheme is generated based on the effluent conductivity, effluent pH value and mixing adjustment parameters.

[0028] The present invention has the following beneficial effects:

[0029] 1. Improve the treatment efficiency of concentrated brine and realize the effective use of concentrated brine. Specifically, different control schemes are adopted for desalted water stations with different operating conditions to realize the effective use of concentrated brine. In practice, the operating conditions of desalted water stations are different, and the water quality of the generated desalted water is also different. Therefore, different control schemes are generated according to the operating conditions of desalted water stations, which improves the treatment efficiency of concentrated brine, realizes the effective use of concentrated brine, and avoids the waste of water resources.

[0030] 2. Effective recycling of water resources is achieved. Specifically, by generating a mixing scheme and treating the brine in a targeted manner, water resources are recycled. The prior art directly mixes the remaining brine with other water, and the quality of the recycled water obtained may not meet the recycling standards, resulting in a waste of water resources. Therefore, a mixing scheme is generated based on the outlet water conductivity, outlet water pH value and mixing adjustment parameters of the brine, and the brine is treated according to the mixing scheme, thereby achieving effective recycling of water resources.

[0031] 3. Improved the accuracy of concentrated brine detection results. Specifically, the pollution level is determined by identifying the effluent image, which improves the accuracy of the concentrated brine detection results. In practice, concentrated brine is often detected by manual observation, and the detection results obtained are low in accuracy. Therefore, by identifying the effluent image, the color characteristics and foreign matter characteristics are obtained, and the pollution level is determined based on the color characteristics and foreign matter characteristics, thereby improving the accuracy of the concentrated brine detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that components and elements are not necessarily drawn to scale.

[0033] Figure 1 The present invention discloses a flow chart of a coal chemical concentrated brine mixing method. DETAILED DESCRIPTION

[0034] The present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0035] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0037] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0038] The names of the messages or information exchanged between multiple devices of the present invention are only for illustrative purposes, and are not used to limit the scope of these messages or information.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] like Figure 1 As shown, a flow chart of a coal chemical concentrated brine mixing method of the present invention is shown, which specifically includes the following steps:

[0041] Step 101, monitor the outlet water conductivity of the desalted water station by installing a conductivity detection device on the outlet water pipe of the desalted water station; monitor the outlet water pH value of the desalted water station by installing a pH detection device on the outlet water pipe of the desalted water station.

[0042] In some embodiments, the execution subject of a coal chemical concentrated brine mixing method of the present invention can be various electronic devices, such as desktop computers and laptop computers. In practice, the execution subject is connected to the conductivity detection equipment and the pH detection equipment through various communication methods. Among them, the conductivity detection equipment is a device used to detect the conductivity of the desalted water outlet, and the pH detection equipment is a device used to detect the pH value of the desalted water outlet. The conductivity detection equipment and the pH detection equipment are installed on the outlet pipe of the desalted water station. On this basis, the execution subject monitors the outlet conductivity of the desalted water station through the conductivity detection equipment installed on the outlet pipe of the desalted water station, and monitors the outlet pH value of the desalted water station through the pH detection equipment installed on the outlet pipe of the desalted water station.

[0043] Step 102, when it is monitored that the average conductivity of the outlet water within the target time period is greater than the preset conductivity threshold and the average pH value of the outlet water is greater than the preset pH value threshold, the commissioning time of the desalting water station is determined; if the commissioning time of the desalting water station is greater than the first preset time and less than the second preset time, the feeding and use data and the outlet water image of the desalting water station are obtained.

[0044] In some embodiments, a camera is provided at the outlet of the desalted water station for collecting the effluent image, and the execution subject locally records the commissioning information of the desalted water station, and the commissioning information includes the commissioning time, feeding information and effluent image. In practice, the target time period is any time period in the monitoring process, the mean value of the effluent conductivity is the average value of the effluent conductivity in the target time period, and the mean value of the effluent pH value is the average value of the effluent pH value in the target time period. In practice, the preset conductivity threshold and the preset effluent pH value threshold are pre-set values. When it is monitored that the mean value of the effluent conductivity in the target time period is greater than the preset conductivity threshold and the mean value of the effluent pH value is greater than the preset effluent pH value threshold, the commissioning information of the desalted water station is queried to determine the commissioning duration of the desalted water station. Among them, the commissioning duration of the desalted water station is the duration from the commissioning time of the desalted water station to the current monitoring time. In practice, the first preset duration is set as the duration between the commissioning time of the desalted water station and the start of feeding time, and the second preset duration is set as the duration between the commissioning time of the desalted water station and the end of feeding time. On this basis, the commissioning time of the desalted water station is compared with the first preset time and the second preset time. If the commissioning time of the desalted water station is greater than the first preset time and less than the second preset time, the commissioning information of the desalted water station is queried to obtain the feeding information and the water outlet image of the desalted water station. Among them, the feeding information includes the feeding name, the initial feeding quantity, the feeding usage quantity, and the feeding time point. The feeding usage quantity corresponding to each feeding and the initial feeding quantity corresponding to each feeding are divided to obtain the feeding utilization rate corresponding to each feeding, and the feeding utilization rate corresponding to each feeding is used as the feeding usage data. The water outlet image is a monitoring image of the desalted water station when the water outlet pipe discharges salt water.

[0045] Step 103, determine the operating status of the desalted water station based on the feed usage data and the effluent image, and generate a first control scheme for the electronic flow direction regulating valve based on the operating status, so that the electronic flow direction regulating valve performs the following processing steps: If the operating status indicates that the desalted water station is in a water pollution state, the electronic flow direction regulating valve installed on the outlet pipe controls the concentrated brine in the outlet pipe to flow into the first branch pipe, and the concentrated brine enters the waste liquid treatment equipment through the first branch pipe; if the operating status indicates that the desalted water station is in an unpolluted water state, the electronic flow direction regulating valve controls the concentrated brine in the outlet pipe to flow into the second branch pipe, and the concentrated brine is converged and mixed with the recycled water in the recycled water pipe through the second branch pipe to obtain mixed water, and the mixed water enters the reuse equipment through the mixed water pipe.

[0046] In some embodiments, the operation state of the desalted water station includes a water pollution state and a water unpolluted state. As an example, if the feed usage data is lower than 60% and the effluent image is turbid, the operation state of the desalted water station is determined to be a water pollution state. If the feed usage data is higher than 60% and the effluent image is clear, the operation state of the desalted water station is determined to be a water unpolluted state. In practice, the outlet pipe is equipped with an electronic flow regulating valve, which is a regulating valve for controlling the flow direction of concentrated brine. The execution subject communicates with the electronic flow regulating valve through various communication methods. On this basis, according to the operation state of the desalted water station, a first control scheme for the electronic flow regulating valve is generated. The first control scheme is a scheme for controlling the electronic flow regulating valve to adjust the flow direction of concentrated brine, including adjusting the flow direction and the control time. As an example, if the operation state is that the desalted water station is in a water pollution state, the execution subject sends an instruction to the electronic flow regulating valve to control the electronic flow regulating valve to adjust the flow direction, so that the concentrated brine in the outlet pipe flows into the first branch pipe, and the concentrated brine enters the waste liquid treatment equipment through the first branch pipe. If the operating status is that the desalted water station is in an uncontaminated water state, the executive body sends a command to the electronic flow direction regulating valve to control the electronic flow direction regulating valve to adjust the flow direction so that the concentrated brine in the outlet pipe flows into the second branch pipe. The concentrated brine is converged and mixed with the recycled water in the recycled water pipe through the second branch pipe to obtain mixed water, and the mixed water enters the reuse equipment through the mixed water pipe.

[0047] In these embodiments, the processing efficiency of concentrated brine is improved, and the effective utilization of concentrated brine is achieved. Specifically, different control schemes are adopted for desalted water stations in different operating states, and the effective utilization of concentrated brine is achieved. In practice, the operating states of desalted water stations are different, and the water quality of the generated desalted water is also different. Therefore, different control schemes are generated according to the operating states of the desalted water stations, which improves the processing efficiency of concentrated brine and achieves the effective utilization of concentrated brine.

[0048] In some embodiments, in order to further solve the second technical problem described in the background technology section, that is, "when the remaining concentrated brine is processed, most of the concentrated brine is directly diluted, and the treated water resources may not meet the recycling requirements", the coal chemical concentrated brine mixing method of the present invention also includes the following steps:

[0049] Step one: If the operating status indicates that the desalted water station is in an uncontaminated state, a mixing scheme is generated based on the outlet water conductivity and outlet water pH value. The mixing scheme includes a first flow rate control signal for the first solenoid valve set on the second branch pipeline, a second flow rate control signal for the second solenoid valve set on the recovery water pipeline, and a pre-configured target mixing concentration.

[0050] In some embodiments, a first solenoid valve is installed on the second branch pipeline, and the first solenoid valve is used to control the flow rate of concentrated brine in the second branch pipeline. A second solenoid valve is installed on the recovered water pipeline, and the second solenoid valve is used to control the flow rate of recovered water in the recovered water pipeline. The executive body is connected to the first solenoid valve and the second solenoid valve through various communication methods. On this basis, if the operating state is that the desalted water station is in an uncontaminated water state, the outlet water conductivity and outlet water pH value are scored respectively. The higher the outlet water conductivity, the higher the corresponding score, and the higher the outlet water pH value, the lower the corresponding score. The scores corresponding to the outlet water conductivity and the outlet water pH value are added to obtain the water quality score. Different water quality scores correspond to different mixing schemes. The mixing scheme includes a first flow rate control signal for a first solenoid valve provided on the second branch pipeline, a second flow rate control signal for a second solenoid valve provided on the recycled water pipeline, and a pre-configured target mixed concentration. The first flow rate control signal is a signal for controlling the first solenoid valve to make the brine in the second branch pipeline reach a set flow rate, the second flow rate control signal is a signal for controlling the second solenoid valve to make the recycled water in the recycled water pipeline reach a set flow rate, and the pre-configured target mixed concentration is the concentration of the pre-set brine after mixing with the recycled water. In practice, a water quality score threshold is pre-set. If the water quality score is higher than the water quality score threshold, it is necessary to reduce the flow rate of the brine and increase the flow rate of the recycled water to increase the mixed concentration of the brine and the recycled water. If the water quality score is lower than the water quality score threshold, it is necessary to increase the flow rate of the brine and reduce the flow rate of the recycled water to reduce the mixed concentration of the brine and the recycled water. On this basis, according to the water quality score, the flow rate of the concentrated brine and the flow rate of the recovered water are determined, and a first flow rate control signal for the first solenoid valve set on the second branch pipeline and a second flow rate control signal for the second solenoid valve set on the recovered water pipeline are generated, and a mixing scheme is generated with the pre-configured target mixing concentration.

[0051] Step 2: Send the first flow rate control signal to the first solenoid valve, send the second flow rate control signal to the second solenoid valve, and collect the mixed water index through the mixed water index collection device arranged on the recycled water pipeline, the mixed water index includes the actual conductivity of the mixed water.

[0052] In some embodiments, a mixed water index collection device is installed on the recycled water pipeline, and the execution subject is connected to the mixed water index collection device through various communication methods. On this basis, the execution subject sends the first flow rate control signal to the first solenoid valve, sends the second flow rate control signal to the second solenoid valve, and the mixed water index collection device on the recycled water pipeline collects the mixed water index and sends the mixed water index to the execution subject. Among them, the mixed water index includes the actual conductivity of the mixed water.

[0053] Step three, based on the actual conductivity of the mixed water, generate the actual mixed concentration, and compare the actual mixed concentration with the target mixed concentration to determine whether the mixed water in the mixed water pipeline meets the standard. If the mixed water does not meet the standard, adjust the mixing plan according to the concentration deviation.

[0054] In some embodiments, the execution subject locally stores a mixed water information table, and the information in the mixed water information table includes the conductivity of the mixed water and the mixed concentration corresponding to the conductivity. Different conductivities correspond to different mixed concentrations. On this basis, the corresponding actual mixed concentration is determined according to the actual conductivity of the mixed water. In practice, a concentration deviation threshold is pre-set, and the actual mixed concentration is compared with the target mixed concentration. If the concentration deviation between the actual mixed concentration and the target mixed concentration is less than or equal to the pre-set concentration deviation threshold, the mixed water meets the standard. If the concentration deviation between the actual mixed concentration and the target mixed concentration is greater than the pre-set concentration deviation threshold, the mixed water does not meet the standard. In practice, if the mixed water does not meet the standard, the actual mixed concentration is compared with the target mixed concentration. If the actual mixed concentration is greater than the target mixed concentration, the flow rate of the first solenoid valve is reduced, the flow rate of the second solenoid valve is increased, and a mixing scheme is generated. If the actual mixed concentration is less than the target mixed concentration, the flow rate of the first solenoid valve is increased, the flow rate of the second solenoid valve is reduced, and a mixing scheme is generated.

[0055] The coal chemical concentrated brine mixing method of the present invention further comprises the following steps:

[0056] Step 1: If the production duration is greater than or equal to the second preset duration, a material feeding usage data sequence within a historical time period is obtained, wherein each material feeding usage data in the material feeding usage data sequence corresponds to a material feeding time point.

[0057] In some embodiments, each feeding usage data corresponds to a feeding time point. On this basis, if the production time is greater than or equal to the second preset time, multiple feeding usage data within the historical time period are obtained. The historical time period can be any time period after the production and before the second preset time period. The multiple feeding usage data are sorted in order from front to back according to the feeding time points to obtain a feeding usage data sequence.

[0058] Step 2: Perform extreme value analysis on the feeding data series to obtain multiple extreme value points in the historical time period and the feeding time point corresponding to each extreme value point. Based on the multiple extreme value points and the feeding time point corresponding to each extreme value point, generate multiple predicted extreme value points and the predicted feeding time point corresponding to each predicted extreme value point.

[0059] In some embodiments, as an example, the feeding usage data that is greater than 90% is taken as an extreme value, and an extreme value analysis is performed on the feeding usage data sequence to obtain multiple extreme value points in the historical time period and the feeding time point corresponding to each extreme value point, each extreme value point is taken as a predicted extreme value point, and the feeding time point corresponding to each extreme value point is taken as the predicted feeding time point corresponding to each predicted extreme value point.

[0060] Step three: generating a second control scheme for the electron flow direction regulating valve according to the multiple predicted extreme value points and the predicted feeding time point corresponding to each predicted extreme value point.

[0061] In some embodiments, feeding is performed according to the predicted feeding time point corresponding to each predicted extreme point, and after the feeding usage data reaches the predicted extreme point, a control signal is sent to the electron flow direction regulating valve to control the electron flow direction regulating valve to adjust the flow direction, and a control scheme for the electron flow direction regulating valve is generated, and the control scheme is used as the second control scheme.

[0062] The second control scheme is generated by the following steps:

[0063] Step one, for each predicted feeding time point, generate a control time interval corresponding to the predicted feeding time point according to the predicted feeding usage corresponding to the predicted feeding time point, the control time interval includes a control start time point and a control end time point; according to the control time interval corresponding to each predicted feeding time point, generate a second control scheme for the electronic flow direction regulating valve, wherein the control start time point is the time point for controlling the concentrated brine in the outlet pipe to flow into the first branch pipe, and the control end time point is the time point for controlling the concentrated brine in the outlet pipe to flow into the second branch pipe.

[0064] In some embodiments, each predicted feeding time point corresponds to a predicted feeding usage, and the predicted feeding usage is the amount of feeding used in the concentrated brine at the predicted feeding time point. In practice, a feeding usage is pre-set as the preset usage. When the predicted feeding usage is equal to the preset usage, the predicted feeding time point corresponding to the predicted feeding usage is used as the control start time. If the predicted feeding usage is fully used, the predicted feeding time point is used as the control end time. The control start time and the control end time constitute the control time interval corresponding to the predicted feeding time point. Among them, the control start time point is the time point when the concentrated brine in the water outlet pipe is controlled to flow into the first branch pipe, and the control end time point is the time point when the concentrated brine in the water outlet pipe is controlled to flow into the second branch pipe. In practice, the generated second control scheme is a control scheme that controls the electronic flow direction regulating valve to adjust the concentrated brine in the water outlet pipe to flow into the first branch pipe at the control start time point, and controls the electronic flow direction regulating valve to adjust the concentrated brine in the water outlet pipe to flow into the second branch pipe at the control end time point.

[0065] The coal chemical concentrated brine mixing method of the present invention further comprises the following steps:

[0066] Step 1: Obtain an adjustment record set within a first time period, wherein the adjustment records in the adjustment record set include the concentration before adjustment, the concentration after adjustment, the flow rate of the first solenoid valve before adjustment, the flow rate of the second solenoid valve before adjustment, the flow rate of the first solenoid valve after adjustment, and the flow rate of the second solenoid valve after adjustment.

[0067] In some embodiments, the execution subject locally stores an adjustment record set, and the adjustment record set includes multiple adjustment records in the historical time, and the first time period may be the time period for the first regulation. On this basis, the adjustment record set in the first time period is obtained, wherein the adjustment records in the adjustment record set include the concentration before adjustment, the concentration after adjustment, the flow rate of the first solenoid valve before adjustment, the flow rate of the second solenoid valve before adjustment, the flow rate of the first solenoid valve after adjustment, and the flow rate of the second solenoid valve after adjustment. Among them, the concentration before adjustment is the concentration of the mixed water before the implementation of the regulation scheme, the concentration after adjustment is the concentration of the mixed water after the implementation of the regulation scheme, the flow rate of the first solenoid valve before adjustment is the flow rate of the second branch pipeline controlled by the first solenoid valve before the implementation of the regulation scheme, the flow rate of the second solenoid valve before adjustment is the flow rate of the recovery pipeline controlled by the second solenoid valve before the implementation of the regulation scheme, the flow rate of the first solenoid valve after adjustment is the flow rate of the second branch pipeline controlled by the first solenoid valve after the implementation of the regulation scheme, and the flow rate of the second solenoid valve after adjustment is the flow rate of the recovery pipeline controlled by the second solenoid valve after the implementation of the regulation scheme.

[0068] Step 2: determine the hybrid adjustment parameters by adjusting the record set.

[0069] In some embodiments, the hybrid adjustment parameter may be obtained by the following steps:

[0070] For each adjustment record, determine the difference between the flow rate of the first solenoid valve before adjustment and the flow rate of the first solenoid valve after adjustment, and use it as the first flow rate difference. Similarly, determine the difference between the flow rate of the second solenoid valve before adjustment and the flow rate of the second solenoid valve after adjustment, and use it as the second flow rate difference. In addition, the difference between the concentration before adjustment and the concentration after adjustment can also be determined to obtain the concentration difference. The concentration difference, the first flow rate difference, and the first flow rate difference are combined into an adjustment parameter triplet. For each adjustment parameter triplet, the first flow rate difference is divided by the concentration difference to obtain the first mixed adjustment parameter; the second flow rate difference is divided by the concentration difference to obtain the second mixed adjustment parameter; and then determine the adjustment parameter triplet set corresponding to the adjustment record set; for the adjustment parameter triplet set, determine the first mixed adjustment parameter mean and the second mixed adjustment parameter mean. The first mixed adjustment parameter mean and the second mixed adjustment parameter mean constitute the mixed adjustment parameter. On this basis, the mixed scheme is generated according to the outlet water conductivity, the outlet water pH value and the mixed adjustment parameter. Specifically, an initial mixing scheme may be first generated according to the outlet water conductivity and the outlet water pH value, and then the mixing adjustment parameters may be used to perform adjustments to obtain the mixing scheme.

[0071] In some embodiments, a water quality score is obtained through the above method, the water quality score is multiplied by the mixing adjustment parameter to obtain an updated water quality score, and a mixing scheme is generated according to the updated water quality score.

[0072] In these embodiments, effective recovery of water resources is achieved. Specifically, by generating a mixing scheme and treating the concentrated brine in a targeted manner, the recycling of water resources is achieved. The prior art directly mixes the remaining concentrated brine with other water, and the quality of the recovered water obtained may not meet the recycling standards, resulting in a waste of water resources. Therefore, a mixing scheme is generated based on the outlet water conductivity, outlet water pH value and mixing adjustment parameters of the concentrated brine, and the concentrated brine is treated according to the mixing scheme, thereby achieving effective recovery of water resources.

[0073] In some embodiments, in order to further solve the technical problem three described in the background technology part, that is, "the effluent of the desalted water station (i.e., concentrated brine) contains a large amount of organic matter, and a large amount of organic matter will produce more pollutants under the action of microorganisms, affecting the mixed utilization of concentrated brine, and there is currently a lack of effective means for monitoring the organic matter content in concentrated brine, and manual observation is likely to lead to inaccurate detection results", in some embodiments of the present invention, according to the feeding and use data and the effluent image, the operation status of the desalted water station is determined, including the following steps:

[0074] Step 1: Obtain the feed usage data and effluent image at the current time point, and determine them as real-time feed usage data and real-time effluent image respectively, wherein the feed usage data includes the usage of regenerated acid and alkali, and determine whether the real-time feed usage data is greater than the historical usage average. If the real-time feed usage data is greater than the historical usage average, extract the color features and foreign matter features of the real-time effluent image to obtain the real-time color features and real-time foreign matter features.

[0075] In some embodiments, the execution subject locally obtains the feeding usage data and the effluent image at the current time point, and determines them as real-time feeding usage data and real-time effluent image respectively, wherein the feeding usage data includes the usage of regenerated acid and alkali. In practice, the execution subject is locally provided with a convolutional neural network. On this basis, the real-time feeding usage data is compared with the historical usage mean, and the historical usage mean is the average value of the feeding usage in the historical records. If the real-time feeding usage data is greater than the historical usage mean, the color features and foreign matter features of the real-time effluent image are extracted through the convolutional neural network to obtain the real-time color features and real-time foreign matter features. Among them, the real-time color feature is the color of the water in the real-time effluent image, which can be black or white, and the real-time foreign matter feature is the type of foreign matter in the real-time effluent image, including ammonia nitrogen, chloride ions, etc.

[0076] Step 2: Obtain the historical water discharge images of each day within a preset time period before the current time point to obtain a historical water discharge image sequence within the preset time period; for each historical water discharge image in the historical water discharge image sequence, respectively extract color features and foreign matter features to obtain color features and foreign matter features of each historical water discharge image.

[0077] In some embodiments, the execution subject locally stores historical water outflow images. On this basis, the historical water outflow images of each day within a preset time period before the current time point are obtained. The preset time period can be set to 5 days before the current time point, and the historical water outflow images 5 days before the current time point are obtained. The historical water outflow images are sorted in order from far to near in time to obtain a sequence of historical water outflow images within the preset time period. In practice, for each historical water outflow image in the sequence of historical water outflow images, the color features and foreign body features are extracted by a convolutional neural network to obtain the color features and foreign body features of each historical water outflow image.

[0078] Step three, fuse the real-time color features and real-time foreign matter features with multiple color features and foreign matter features within a preset time period to obtain average color features and average foreign matter features, match the average color features in a preset standard pollution color feature library, and match the average foreign matter features in a preset standard pollution foreign matter feature library, wherein each standard pollution color feature in the standard pollution color feature library corresponds to a pollution level, and each standard pollution foreign matter feature in the standard pollution foreign matter feature library also corresponds to a pollution level.

[0079] In some embodiments, the execution subject locally stores a standard pollution color feature library and a standard pollution foreign body feature library, wherein the standard pollution color feature library includes multiple standard pollution color features, and the standard pollution foreign body feature library includes multiple standard pollution foreign body features. On this basis, the real-time color feature and the real-time foreign body feature are fused with multiple color features and foreign body features within a preset time period, and the most frequently appearing color is selected as the average color feature, and the most frequently appearing foreign body type is selected as the average foreign body feature. In practice, the average color feature is matched in a preset standard pollution color feature library to determine whether there is a standard pollution color feature matching the average color feature in the standard pollution color feature library, and the average foreign body feature is matched in a preset standard pollution foreign body feature library to determine whether there is a standard pollution foreign body feature matching the average foreign body feature in the standard pollution foreign body feature library. Among them, each standard pollution color feature in the standard pollution color feature library corresponds to a pollution level, and each standard pollution foreign body feature in the standard pollution foreign body feature library also corresponds to a pollution level.

[0080] Step 4. If there is a standard pollution color feature that matches the average color feature in the standard pollution color feature library, the matching standard pollution color feature is determined as the matching standard pollution color feature, and the pollution level corresponding to the matching standard pollution color feature is determined as the first candidate pollution level; similarly, if there is a standard pollution foreign matter feature that matches the average foreign matter feature in the standard pollution foreign matter feature library, the matching standard pollution foreign matter feature is determined as the matching standard pollution foreign matter feature, and the pollution level corresponding to the matching standard pollution foreign matter feature is determined as the second candidate pollution level.

[0081] In some embodiments, the average color feature is matched in a preset standard pollution color feature library. If the match is successful, there is a standard pollution color feature that matches the average color feature in the standard pollution color feature library. The matched standard pollution color feature is used as the matching standard pollution color feature, the pollution level corresponding to the matching standard pollution color feature is queried, and the pollution level corresponding to the matching standard pollution color feature is determined as the first candidate pollution level. The average foreign body feature is matched in a preset standard pollution foreign body feature library. If the match is successful, there is a standard pollution foreign body feature that matches the average foreign body feature in the standard pollution foreign body feature library. The matched standard pollution foreign body feature is used as the matching standard pollution foreign body feature, the pollution level corresponding to the matching standard pollution foreign body feature is queried, and the pollution level corresponding to the matching standard pollution foreign body feature is determined as the second candidate pollution level.

[0082] Step 5: If the first candidate pollution level is consistent with the second candidate pollution level, it is determined that the operation state of the desalted water station is in a water pollution state and the pollution level is the first candidate pollution level.

[0083] In some embodiments, if the first candidate pollution level and the second candidate pollution level are consistent, the operation state of the desalted water station is obtained as being in a water quality pollution state and the pollution level is the first candidate pollution level. If the first candidate pollution level and the second candidate pollution level are different, the higher candidate pollution level is selected as the pollution level of the desalted water station.

[0084] Step six, on this basis, you can also query the corresponding control time according to the pollution level, and control the concentrated brine in the outlet pipe to flow into the first branch pipe within the corresponding control time, and then switch to flow into the second branch pipe.

[0085] In some embodiments, the execution subject locally stores a preset control scheme, which includes a pollution level and a control duration, wherein each pollution level corresponds to a control duration. On this basis, the control duration corresponding to the pollution level of the desalted water station is queried, and the concentrated brine in the outlet pipe is controlled by the electronic flow control valve to flow into the first branch pipe within the corresponding control duration, and after the control duration, into the second branch pipe.

[0086] In these embodiments, the accuracy of the concentrated brine detection results is improved. Specifically, the pollution level is determined by identifying the water output image, thereby improving the accuracy of the concentrated brine detection results. In practice, concentrated brine is often detected by manual observation, and the detection results obtained are low in accuracy. Therefore, by identifying the water output image, color features and foreign matter features are obtained, and the pollution level is determined based on the color features and foreign matter features, thereby improving the accuracy of the concentrated brine detection results.

[0087] The above descriptions are only some preferred embodiments of the present invention and the explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present invention is not limited to the technical solutions formed by the specific combination of the above technical features, but also should cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) to form a technical solution.

Claims

1. A coal chemical concentrated brine mixing method, characterized in that: include: Monitor the outlet water conductivity of the desalted water station by means of a conductivity detection device installed in the outlet water pipeline of the desalted water station; The pH value of the outlet water of the desalted water station is monitored by a pH detection device installed in the outlet water pipeline of the desalted water station; When it is monitored that the average conductivity of the outlet water within the target time period is greater than the preset conductivity threshold and the average pH value of the outlet water is greater than the preset pH value threshold, the commissioning time of the desalted water station is determined; If the commissioning time of the desalted water station is greater than the first preset time and less than the second preset time, obtaining the material feeding and use data and the effluent image of the desalted water station; Determine the operation status of the desalted water station according to the feed usage data and the effluent image; According to the operating state, a first control scheme for the electronic flow direction regulating valve is generated to enable the electronic flow direction regulating valve to perform the following processing steps: if the operating state indicates that the desalted water station is in a water pollution state, the electronic flow direction regulating valve installed on the outlet water pipe is used to control the concentrated brine in the outlet water pipe to flow into the first branch pipe, and the concentrated brine enters the waste liquid treatment equipment through the first branch pipe; if the operating state indicates that the desalted water station is in a water unpolluted state, the electronic flow direction regulating valve is used to control the concentrated brine in the outlet water pipe to flow into the second branch pipe, and the concentrated brine is converged and mixed with the recycled water in the recycled water pipe through the second branch pipe to obtain mixed water, and the mixed water enters the reuse equipment through the mixed water pipe; If the operating state indicates that the desalted water station is in an uncontaminated water state, a mixing scheme is generated according to the outlet water conductivity and the outlet water pH value, wherein the mixing scheme includes a first flow rate control signal for a first solenoid valve provided on the second branch pipeline, a second flow rate control signal for a second solenoid valve provided on the recycled water pipeline, and a pre-configured target mixing concentration; The first flow rate control signal is sent to the first solenoid valve, the second flow rate control signal is sent to the second solenoid valve, and a mixed water index is collected by a mixed water index collection device disposed on the recycled water pipeline, wherein the mixed water index includes actual conductivity of the mixed water; According to the actual conductivity of the mixed water, an actual mixed concentration is generated, and the actual mixed concentration is compared with the target mixed concentration to determine whether the mixed water in the mixed water pipeline meets the standard. If the mixed water does not meet the standard, the mixing scheme is adjusted according to the concentration deviation; If the production duration is greater than or equal to the second preset duration, a material feeding usage data sequence within a historical time period is obtained, wherein each material feeding usage data in the material feeding usage data sequence corresponds to a material feeding time point; An extreme value analysis is performed on the feeding data sequence to obtain multiple extreme value points and a feeding time point corresponding to each extreme value point within the historical time period. Based on the multiple extreme value points and the feeding time point corresponding to each extreme value point, multiple predicted extreme value points and a predicted feeding time point corresponding to each predicted extreme point are generated: Generating a second control scheme for the electron flow direction regulating valve according to the multiple predicted extreme value points and the predicted feeding time point corresponding to each predicted extreme value point; For each predicted feeding time point, a control time interval corresponding to the predicted feeding time point is generated according to the predicted feeding usage corresponding to the predicted feeding time point, and the control time interval includes a control start time point and a control end time point; according to the control time interval corresponding to each predicted feeding time point, a second control scheme for the electronic flow direction regulating valve is generated, wherein the control start time point is the time point for controlling the concentrated brine in the water outlet pipe to flow into the first branch pipe, and the control end time point is the time point for controlling the concentrated brine in the water outlet pipe to flow into the second branch pipe.

2. The coal chemical concentrated brine mixing method according to claim 1, characterized in that: Also includes: Acquire an adjustment record set within a first time period, wherein the adjustment records in the adjustment record set include a concentration before adjustment, a concentration after adjustment, a flow rate of the first solenoid valve before adjustment, a flow rate of the second solenoid valve before adjustment, a flow rate of the first solenoid valve after adjustment, and a flow rate of the second solenoid valve after adjustment; A hybrid adjustment parameter is determined through the adjustment record set.

3. The coal chemical concentrated brine mixing method according to claim 2, characterized in that: The mixing scheme is generated based on the outlet water conductivity, the outlet water pH value and the mixing adjustment parameters.

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