CN117252589A - Coal washing water recovery system and method thereof - Google Patents
Coal washing water recovery system and method thereof Download PDFInfo
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- CN117252589A CN117252589A CN202311532519.XA CN202311532519A CN117252589A CN 117252589 A CN117252589 A CN 117252589A CN 202311532519 A CN202311532519 A CN 202311532519A CN 117252589 A CN117252589 A CN 117252589A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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- 238000004062 sedimentation Methods 0.000 description 1
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Abstract
The invention discloses a coal washing water recovery system and a method thereof, and particularly relates to the technical field of data processing, wherein the system comprises a coal washing water recovery type dividing module, a coal washing water monitoring information acquisition module, a coal washing water monitoring information processing module, a coal washing water monitoring information management and control module, a coal washing water monitoring information analysis module, a coal washing water monitoring information evaluation module and a coal washing water monitoring information database module.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a coal washing water recovery system and a method thereof.
Background
In order to improve the quality of coal, the mined coal is required to be washed, a large amount of wastewater which is seriously polluted and is not easy to treat is generated in the washing and selecting process, and if the wastewater is not treated in time, the environment is polluted, and the resource waste is caused, so that the effective treatment of the coal washing wastewater is very necessary.
When the coal washing wastewater is treated, a certain amount of coagulant must be added into the wastewater, so that the potential of the wastewater can be reduced, the stability of colloid particles in the wastewater is destroyed, further, mud-water separation is realized, the separated clear water is reused for coal washing, water resources can be saved, water cost can be saved for enterprises, the coal washing wastewater is treated, high pollution discharge cost can be avoided, and the obtained economic benefit can not only resist the running cost of the wastewater treatment, but also obtain additional economic benefit.
However, when the system is actually used, the system still has some defects, such as when the existing coal washing water recovery scheme is implemented, emission indexes after coal washing wastewater treatment are monitored only based on a single monitoring device, recovery efficiency is affected by coal washing processes of different processes and device types, and feasibility and economic benefits of the coal washing water recovery scheme cannot be comprehensively evaluated according to different specific water resource recovery conditions;
different coal companies select traditional open-air coal washing in view of economic benefit, and influence the local ecological environment, so that the existing coal washing water recovery quality evaluation lacks a unified standard and index system, and related environmental protection departments cannot monitor data indexes in the coal washing water recovery process in real time and cannot evaluate the quality safety of treated water.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a system and a method for recycling water for coal washing, which are used for solving the problems set forth in the above-mentioned background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the coal washing water recovery type dividing module comprises: the method is used for dividing wastewater needing to be recycled into monitoring subareas according to different types of treatment technologies, and numbering the monitoring subareas of the treatment technologies of the coal washing wastewater area.
The coal washing water monitoring information acquisition module comprises: the system is used for collecting wastewater treatment information of each treatment technology monitoring subarea of the coal washing wastewater area, wherein the wastewater treatment information comprises a water quality information collecting unit and a water recovery cost information collecting unit.
The coal washing water monitoring information processing module comprises: the system is used for receiving the wastewater treatment information transmitted by the coal washing water monitoring information acquisition module, calculating and obtaining the water quality safety index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area through the water quality information acquisition unit, and calculating and obtaining the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area through the water recovery cost information acquisition unit.
The coal washing water monitoring information management and control module: the method is used for monitoring the water quality safety index of the coal washing water and the economic benefit index of the coal washing water in the subarea according to each treatment technology of the coal washing wastewater area, obtaining the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water, and treating.
The coal washing water monitoring information analysis module: the comprehensive evaluation system is used for obtaining the comprehensive evaluation coefficient of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of the comprehensive evaluation model of the coal washing water recovery according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area.
The coal washing water monitoring information evaluation module comprises: and the comprehensive evaluation coefficient of the recovery of the coal washing water is used for extracting the monitoring subareas of each treatment technology of the coal washing wastewater area, and is compared with the preset comprehensive evaluation coefficient of the recovery of the coal washing water and is treated.
The coal washing water monitoring information database module: the method is used for counting and storing relevant parameters of the comprehensive evaluation coefficients of the water recovery management and control early warning index and the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area in real time.
Preferably, the concrete dividing mode of the coal washing water recovery type dividing module is as follows:
acquiring technical information of coal washing wastewater treatment of a coal company to be supervised, dividing wastewater which needs to be subjected to coal washing water recovery into monitoring subareas according to different types of treatment technologies, and marking the monitoring subareas of the coal washing wastewater areas as 1 and 2 … … n.
Preferably, the specific collection mode of the coal washing water monitoring information collection module is as follows:
the water quality information acquisition unit: the pollutant emission concentration, the coal washing wastewater amount and the wastewater filtering solid particulate matter amount of the monitoring subareas of each treatment technology used for collecting the coal washing wastewater area are respectively marked as、/>、/>Where i=1, 2 … … n, i denotes the ith processing technology monitoring sub-region number;
the water recovery cost information acquisition unit: the coal washing water consumption, the recovery water consumption and the wastewater recovery investment cost for collecting the monitoring subareas of each treatment technology of the coal washing wastewater area are respectively marked as、/>、/>Where i=1, 2 … … n, i denotes the ith processing technology monitor sub-region number.
Preferably, the water quality safety index of the coal washing water is specifically:
monitoring the coal washing wastewater quantity of each treatment technology monitoring subarea of the coal washing wastewater areaAmount of solid particles filtered from waste water>Substitution formula: />Obtaining the stability of each impurity>；
Monitoring impurity stability of subareas by using each treatment technology of coal washing wastewater areaSubstitution formula:obtaining the mean value of impurity stability>Wherein n represents the number of sub-regions monitored by the processing technique;
the calculation formula of the water quality safety index of the coal washing water of each treatment technology monitoring subarea of the analysis coal washing wastewater area:
wherein->Water quality safety index of coal washing water expressed as the ith treatment technology monitoring subarea,/for>Monitoring pollutant emission concentration of a sub-zone, denoted as ith treatment technique, +>Expressed as a preset pollutant standard emission concentration threshold,/->Impurity stability, denoted i-th processing technique monitoring sub-region,>expressed as presetDifference between pollutant emission concentration and standard concentration, +.>Expressed as mean value of impurity stability,/->Expressed as an impact factor on the water quality safety index of the coal washing water.
Preferably, the coal washing water recycling economic benefit index specifically comprises:
extracting water charge of the region of the coal company to be supervised and marking as；
Monitoring the water consumption for coal washing of each treatment technology monitoring subarea of coal washing wastewater areaWater recovery->Substitution formula: />Obtaining the recovery rate of each coal washing water, and the maximum value of the recovery rate of the extracted coal washing water is marked as +.>The minimum value is marked +.>；
The calculation formula of the economic benefit index of coal washing water recovery of each treatment technology monitoring subarea of the analysis coal washing wastewater area:
wherein->The coal-washing water recovery economic benefit index expressed as the ith treatment technology monitoring subarea, ++>Denoted as the ith treatment technique monitors the wastewater recovery input costs of the sub-area,the recovery water quantity of the sub-area is monitored, denoted as ith treatment technique, ">Water cost, indicated as ith treatment technique monitoring sub-area,/->The recovery of coal wash water, denoted as the ith treatment technique monitoring sub-zone,>expressed as maximum value of recovery of water for washing coal, < >>Expressed as the minimum recovery of coal washing water.
Preferably, the monitoring information management and control module for coal washing water specifically comprises:
extracting the water quality safety index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area, and substituting the water quality safety index into a formula:obtaining the water quality safety control index of the coal washing water>Wherein->The index compensation factor is expressed as a coal washing water quality safety control index, and e is expressed as a natural constant;
comparing the water quality safety control index of the coal washing water with a preset water quality safety control index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area, screening out the treatment technology monitoring subareas with the water quality safety control index of the coal washing water being greater than the preset water quality safety control index of the coal washing water, arranging the abnormal areas according to the sequence from large to small to obtain arranged treatment technology monitoring subareas, and informing related managers of checking the water quality safety condition according to the arranged sequence;
extracting coal washing water recovery economic benefit indexes of each treatment technology monitoring subarea of the coal washing wastewater area, and substituting the indexes into a formula:obtaining the economic benefit management and control index of the coal washing water recovery>Wherein->The index compensation factor is expressed as a coal washing water recycling economic benefit management and control index, and e is expressed as a natural constant;
comparing the economic benefit control index of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area with a preset economic benefit control index of coal washing water recovery, screening out the treatment technology monitoring subareas of which the economic benefit control index of coal washing water recovery is larger than the preset economic benefit control index of coal washing water recovery, arranging the abnormal areas according to the sequence from large to small to obtain the arranged treatment technology monitoring subareas, and informing related managers in sequence according to the arranged sequence to check the economic benefit of the recovery process.
Preferably, the calculation formula of the comprehensive evaluation coefficient of coal washing water recovery is as follows:
+/>wherein->Comprehensive evaluation coefficient of coal washing water recovery expressed as the ith treatment technology monitoring subarea, ++>Water quality safety index of coal washing water expressed as the ith treatment technology monitoring subarea,/for>The coal-washing water recovery economic benefit index is expressed as the ith treatment technology monitoring sub-area.
Preferably, the specific evaluation mode of the coal washing water monitoring information evaluation module is as follows:
acquiring a comprehensive evaluation coefficient of the recovery of the coal washing water of each treatment technology monitoring subarea of the coal washing wastewater area, comparing the comprehensive evaluation coefficient with a preset comprehensive evaluation coefficient of the recovery of the coal washing water, and if the comprehensive evaluation coefficient of the recovery of the coal washing water of a certain treatment technology monitoring subarea of the coal washing wastewater area is larger than the preset comprehensive evaluation coefficient of the recovery of the coal washing water, indicating that the comprehensive evaluation index of the recovery of the coal washing water through the treatment technology is abnormal, otherwise, indicating that the comprehensive evaluation index of the recovery of the coal washing water through the treatment technology is normal.
Preferably, the method comprises the following steps:
step S01: the recovery type of coal washing water is divided into: dividing wastewater to be recycled into monitoring subareas according to different types of treatment technologies, and numbering the monitoring subareas of the treatment technologies of the coal washing wastewater area;
step S02: collecting monitoring information of coal washing water: specifically, the wastewater treatment information of each treatment technology monitoring subarea of the coal washing wastewater area is collected;
step S03: and (3) coal washing water monitoring information processing: the method comprises the steps of obtaining a coal washing water quality safety index of each treatment technology monitoring subarea of a coal washing wastewater area through calculation of a water quality information acquisition unit, and obtaining a coal washing water recovery economic benefit index of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of a water recovery cost information acquisition unit;
step S04: monitoring and controlling the coal washing water: the method specifically comprises the steps of monitoring the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of a subarea according to each treatment technology of the coal washing wastewater area, obtaining the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water recovery, and treating;
step S05: and (3) analyzing monitoring information of coal washing water: specifically, according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area, the comprehensive evaluation coefficient of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area is obtained through calculation of a comprehensive evaluation model of the coal washing water recovery;
step S06: coal washing water monitoring information evaluation: specifically, the comprehensive evaluation coefficient of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area is extracted, compared with the preset comprehensive evaluation coefficient of coal washing water recovery, and treated;
step S07: coal washing water monitoring information database: the method is characterized by comprising the steps of counting and storing relevant parameters of water recovery control early warning indexes and comprehensive coal washing water recovery evaluation coefficients of all treatment technology monitoring subareas in a coal washing wastewater area in real time.
The invention has the technical effects and advantages that:
1. the invention provides a coal washing water recovery system and a method thereof, wherein the coal washing water quality safety index of each treatment technology monitoring subarea of a coal washing wastewater area is obtained through collecting wastewater treatment information of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of a water quality information collecting unit, the coal washing water recovery economic benefit index of each treatment technology monitoring subarea of the coal washing wastewater area is obtained through calculation of a water recovery cost information collecting unit, the coal washing water recovery comprehensive evaluation coefficient is further obtained through analysis and is compared with a preset coal washing water recovery comprehensive evaluation coefficient, if the coal washing water recovery comprehensive evaluation coefficient of a treatment technology monitoring subarea of the coal washing wastewater area is larger than the preset coal washing water recovery comprehensive evaluation coefficient, the coal washing water recovery comprehensive evaluation index through the treatment technology is abnormal, so that a unified water recovery comprehensive evaluation method is established through a real-time monitoring technology, the feasibility and economic benefit of a coal washing water recovery scheme are quantized, and the sustainable development of coal washing water recovery is promoted;
2. the invention provides a coal washing water recovery system and a method thereof, which are used for monitoring the water quality safety index of coal washing water and the economic benefit index of coal washing water recovery in subareas according to each treatment technology of a coal washing wastewater area to obtain the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water recovery, so that abnormal conditions in the real-time control recovery process can be realized, timely treatment can be carried out, and improvement and optimization of the quality control of the coal washing water recovery are promoted.
Drawings
FIG. 1 is a schematic diagram of a system module flow connection according to the present invention.
Fig. 2 is a schematic diagram of a structure of a monitoring information acquisition module for coal washing water.
FIG. 3 is a schematic diagram of a process flow connection of the method of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a system and a method for recovering water for coal washing, comprising a module for classifying recovery types of water for coal washing, a module for collecting monitoring information of water for coal washing, a module for processing monitoring information of water for coal washing, a module for managing and controlling monitoring information of water for coal washing, a module for analyzing monitoring information of water for coal washing, a module for evaluating monitoring information of water for coal washing, and a database module for monitoring information of water for coal washing.
The coal washing water recovery type dividing module is connected with the coal washing water monitoring information acquisition module, the coal washing water monitoring information acquisition module is connected with the coal washing water monitoring information processing module, the coal washing water monitoring information processing module is connected with the coal washing water monitoring information management and control module and the coal washing water monitoring information analysis module, the coal washing water monitoring information analysis module is connected with the coal washing water monitoring information evaluation module, and the coal washing water monitoring information evaluation module and the coal washing water monitoring information management and control module are connected with the coal washing water monitoring information database module.
The coal washing water recovery type dividing module is used for dividing wastewater to be subjected to coal washing water recovery into monitoring subareas according to different types of treatment technologies, numbering the monitoring subareas of each treatment technology of the coal washing wastewater area, and classifying and supervising according to a method for selecting the properties of the coal washing wastewater, so that the recovery efficiency can be improved, and the difficulty in wastewater management can be reduced.
In one possible design, the specific division mode of the coal washing water recovery type division module is as follows:
acquiring technical information of coal washing wastewater treatment of a coal company to be supervised, dividing wastewater which needs to be subjected to coal washing water recovery into monitoring subareas according to different types of treatment technologies, and marking the monitoring subareas of the coal washing wastewater areas as 1 and 2 … … n.
Referring to fig. 2, the monitoring information collection module for coal washing water is used for collecting the wastewater treatment information of each treatment technology monitoring subarea in the coal washing wastewater area, wherein the wastewater treatment information comprises a water quality information collection unit and a water recovery cost information collection unit, and can be combined with the real-time monitoring technology to establish a unified water quality assessment index.
In one possible design, the specific collection mode of the coal washing water monitoring information collection module is as follows:
the water quality information acquisition unit: the pollutant emission concentration, the coal washing wastewater amount and the wastewater filtering solid particulate matter amount of the monitoring subareas of each treatment technology used for collecting the coal washing wastewater area are respectively marked as、/>、/>Wherein i=1, 2 … … n, i is expressed asThe ith processing technique monitors the sub-region number;
the water recovery cost information acquisition unit: the coal washing water consumption, the recovery water consumption and the wastewater recovery investment cost for collecting the monitoring subareas of each treatment technology of the coal washing wastewater area are respectively marked as、/>、/>Where i=1, 2 … … n, i denotes the ith processing technology monitor sub-region number.
The coal washing water monitoring information processing module is used for receiving the wastewater treatment information transmitted by the coal washing water monitoring information acquisition module, calculating and obtaining the water quality safety index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area through the water quality information acquisition unit, calculating and obtaining the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area through the water recovery cost information acquisition unit, comprehensively evaluating the condition of the coal washing water recovery, and quantifying the feasibility and the economic benefit of the coal washing water recovery scheme.
In one possible design, the water quality safety index of the coal washing water is specifically:
monitoring the coal washing wastewater quantity of each treatment technology monitoring subarea of the coal washing wastewater areaAmount of solid particles filtered from waste water>Substitution formula: />Obtaining the stability of each impurity>；
Will wash the coal waste water districtMonitoring impurity stability of subregions for each processing technique of the domainSubstitution formula:obtaining the mean value of impurity stability>Wherein n represents the number of sub-regions monitored by the processing technique;
the calculation formula of the water quality safety index of the coal washing water of each treatment technology monitoring subarea of the analysis coal washing wastewater area:
wherein->Water quality safety index of coal washing water expressed as the ith treatment technology monitoring subarea,/for>Monitoring pollutant emission concentration of a sub-zone, denoted as ith treatment technique, +>Expressed as a preset pollutant standard emission concentration threshold,/->Impurity stability, denoted i-th processing technique monitoring sub-region,>expressed as a difference between a predetermined pollutant discharge concentration and a standard concentration,/->Expressed as mean value of impurity stability,/->Expressed as a water quality safety index of coal washing waterInfluence factors.
In this example, it is specifically stated that the pollutant discharge concentrations include pH, suspended matter, chemical oxygen demand, petroleum, total iron, total manganese.
In one possible design, the coal washing water recovery economic benefit index is specifically:
extracting water charge of the region of the coal company to be supervised and marking as；
Monitoring the water consumption for coal washing of each treatment technology monitoring subarea of coal washing wastewater areaWater recovery->Substitution formula: />Obtaining the recovery rate of each coal washing water, and the maximum value of the recovery rate of the extracted coal washing water is marked as +.>The minimum value is marked +.>；
The calculation formula of the economic benefit index of coal washing water recovery of each treatment technology monitoring subarea of the analysis coal washing wastewater area:
wherein->The coal-washing water recovery economic benefit index expressed as the ith treatment technology monitoring subarea, ++>Denoted as ith processing technique monitoring sub-regionThe cost of recycling and input of the waste water is high,the recovery water quantity of the sub-area is monitored, denoted as ith treatment technique, ">Water cost, indicated as ith treatment technique monitoring sub-area,/->The recovery of coal wash water, denoted as the ith treatment technique monitoring sub-zone,>expressed as maximum value of recovery of water for washing coal, < >>Expressed as the minimum recovery of coal washing water.
The coal washing water monitoring information management and control module is used for monitoring the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of the subareas according to each treatment technology of the coal washing wastewater area, obtaining the water quality safety management and control index of the coal washing water and the economic benefit management and control index of the coal washing water, and processing the indexes, so that abnormal conditions in the real-time management and control and recovery process can be realized, and the treatment is timely carried out.
In one possible design, the monitoring and controlling module for coal washing water is specifically:
extracting the water quality safety index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area, and substituting the water quality safety index into a formula:obtaining the water quality safety control index of the coal washing water>Wherein->The index compensation factor is expressed as a coal washing water quality safety control index, and e is expressed as a natural constant;
comparing the water quality safety control index of the coal washing water with a preset water quality safety control index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area, screening out the treatment technology monitoring subareas with the water quality safety control index of the coal washing water being greater than the preset water quality safety control index of the coal washing water, arranging the abnormal areas according to the sequence from large to small to obtain arranged treatment technology monitoring subareas, and informing related managers of checking the water quality safety condition according to the arranged sequence;
extracting coal washing water recovery economic benefit indexes of each treatment technology monitoring subarea of the coal washing wastewater area, and substituting the indexes into a formula:obtaining the economic benefit management and control index of the coal washing water recovery>Wherein->The index compensation factor is expressed as a coal washing water recycling economic benefit management and control index, and e is expressed as a natural constant;
comparing the economic benefit control index of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area with a preset economic benefit control index of coal washing water recovery, screening out the treatment technology monitoring subareas of which the economic benefit control index of coal washing water recovery is larger than the preset economic benefit control index of coal washing water recovery, arranging the abnormal areas according to the sequence from large to small to obtain the arranged treatment technology monitoring subareas, and informing related managers in sequence according to the arranged sequence to check the economic benefit of the recovery process.
In this embodiment, it should be specifically described that the water quality safety control index compensation factor of the coal washing water is specifically:
the dosage, the sedimentation time and the temperature of each treatment technology monitoring subarea of the coal washing wastewater area are respectively marked as、/>、/>Where i=1, 2 … … n, i denotes the ith processing technology monitoring sub-region number;
the calculation formula for analyzing the water quality safety control index compensation factor of the coal washing water is as follows:wherein->Expressed as a water quality safety control index compensation factor of coal washing water>The dose of administration of the sub-region is monitored as the ith treatment technique,/->The precipitation time of the subregion is monitored, denoted as ith treatment technique,/->The temperature of the sub-area is monitored, denoted as ith process technology, for example>Expressed as a preset standard process temperature.
In this embodiment, it is to be specifically explained that,the index compensation factor can be specifically the medicament cost, the equipment depreciation cost and the equipment energy consumption, wherein the embodiment mainly solves the problem of sustainability of the economic benefit of the coal washing water recovery, and the method is characterized in that>The whole index data influencing process belongs toThe direction of the conventional technical study, the present embodiment is not particularly limited and extends.
The coal washing water monitoring information analysis module is used for obtaining the comprehensive evaluation coefficient of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of the comprehensive evaluation model of the coal washing water recovery according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area, and the comprehensive evaluation method of the coal washing water recovery is developed through real-time statistics of data.
In one possible design, the calculation formula of the comprehensive evaluation coefficient of coal washing water recovery is as follows:
+/>wherein->Comprehensive evaluation coefficient of coal washing water recovery expressed as the ith treatment technology monitoring subarea, ++>Water quality safety index of coal washing water expressed as the ith treatment technology monitoring subarea,/for>The coal-washing water recovery economic benefit index is expressed as the ith treatment technology monitoring sub-area.
The coal washing water monitoring information evaluation module is used for extracting comprehensive evaluation coefficients of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area, comparing the comprehensive evaluation coefficients with preset comprehensive evaluation coefficients of coal washing water recovery, and processing the comprehensive evaluation coefficients, so that whether different technical indexes of coal washing wastewater treatment are normal or not can be comprehensively evaluated, and sustainable development of coal washing water recovery is promoted.
In one possible design, the specific evaluation mode of the coal washing water monitoring information evaluation module is as follows:
acquiring a comprehensive evaluation coefficient of the recovery of the coal washing water of each treatment technology monitoring subarea of the coal washing wastewater area, comparing the comprehensive evaluation coefficient with a preset comprehensive evaluation coefficient of the recovery of the coal washing water, and if the comprehensive evaluation coefficient of the recovery of the coal washing water of a certain treatment technology monitoring subarea of the coal washing wastewater area is larger than the preset comprehensive evaluation coefficient of the recovery of the coal washing water, indicating that the comprehensive evaluation index of the recovery of the coal washing water through the treatment technology is abnormal, otherwise, indicating that the comprehensive evaluation index of the recovery of the coal washing water through the treatment technology is normal.
The coal washing water monitoring information database module: the method is used for counting and storing relevant parameters of water recovery management and control early warning indexes and comprehensive evaluation coefficients of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area in real time, and can pay attention to whether the coal washing wastewater recovery of a coal company to be managed meets the emission standard or not in real time, and perform traceable management on the company which does not meet the requirements.
Referring to fig. 3, in this embodiment, it is to be specifically explained that the present invention provides a method for recovering water for coal washing, comprising the following steps:
step S01: the recovery type of coal washing water is divided into: dividing wastewater to be recycled into monitoring subareas according to different types of treatment technologies, and numbering the monitoring subareas of the treatment technologies of the coal washing wastewater area;
step S02: collecting monitoring information of coal washing water: specifically, the wastewater treatment information of each treatment technology monitoring subarea of the coal washing wastewater area is collected;
step S03: and (3) coal washing water monitoring information processing: the method comprises the steps of obtaining a coal washing water quality safety index of each treatment technology monitoring subarea of a coal washing wastewater area through calculation of a water quality information acquisition unit, and obtaining a coal washing water recovery economic benefit index of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of a water recovery cost information acquisition unit;
step S04: monitoring and controlling the coal washing water: the method specifically comprises the steps of monitoring the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of a subarea according to each treatment technology of the coal washing wastewater area, obtaining the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water recovery, and treating;
step S05: and (3) analyzing monitoring information of coal washing water: specifically, according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area, the comprehensive evaluation coefficient of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area is obtained through calculation of a comprehensive evaluation model of the coal washing water recovery;
step S06: coal washing water monitoring information evaluation: specifically, the comprehensive evaluation coefficient of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area is extracted, compared with the preset comprehensive evaluation coefficient of coal washing water recovery, and treated;
step S07: coal washing water monitoring information database: the method is characterized by comprising the steps of counting and storing relevant parameters of water recovery control early warning indexes and comprehensive coal washing water recovery evaluation coefficients of all treatment technology monitoring subareas in a coal washing wastewater area in real time.
In this embodiment, it needs to be specifically explained that, by collecting the wastewater treatment information of the monitoring subareas of each treatment technology in the coal-washing wastewater area, calculating the water quality safety index of the coal-washing water in the monitoring subareas of each treatment technology in the coal-washing wastewater area by the water quality information collecting unit, calculating the economic benefit index of the coal-washing water recovery in the monitoring subareas of each treatment technology in the coal-washing wastewater area by the water recovery cost information collecting unit, further analyzing to obtain the comprehensive evaluation coefficient of the coal-washing water recovery, comparing with the preset comprehensive evaluation coefficient of the coal-washing water recovery, if the comprehensive evaluation coefficient of the coal-washing water recovery in the monitoring subareas of the coal-washing wastewater area is greater than the preset comprehensive evaluation coefficient of the coal-washing water recovery, it is indicated that the comprehensive evaluation index of the coal-washing water recovery through the treatment technology is abnormal, so that a unified comprehensive evaluation method of water recovery is established by the real-time monitoring technology, the feasibility and economic benefit of the coal-washing water recovery scheme are quantized, and the sustainable development of the coal-washing water recovery is promoted;
according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area, the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water recovery are obtained, abnormal conditions in the real-time control recovery process can be realized, timely treatment can be carried out, and improvement and optimization of the quality control of the coal washing water recovery are promoted.
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A coal wash water recovery system, comprising:
the coal washing water recovery type dividing module comprises: the method comprises the steps of dividing wastewater to be recycled into monitoring subareas according to different types of treatment technologies, and numbering the monitoring subareas of the treatment technologies of the coal washing wastewater area;
the coal washing water monitoring information acquisition module comprises: is used for collecting the wastewater treatment information of each treatment technology monitoring subarea of the coal washing wastewater area, wherein the wastewater treatment information comprises a water quality information acquisition unit and a water recovery cost information acquisition unit;
the coal washing water monitoring information processing module comprises: the system comprises a coal washing wastewater area monitoring subarea, a water quality information acquisition unit, a water recovery cost information acquisition unit, a water quality information acquisition unit and a water quality information acquisition unit, wherein the water quality information acquisition unit is used for acquiring the water quality information of the coal washing wastewater;
the coal washing water monitoring information management and control module: the method comprises the steps of monitoring the water quality safety index of the coal washing water and the economic benefit index of the coal washing water in the subarea according to each treatment technology of the coal washing wastewater area, obtaining the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water, and treating;
the coal washing water monitoring information analysis module: the comprehensive evaluation system is used for obtaining the comprehensive evaluation coefficient of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of the comprehensive evaluation model of the coal washing water recovery according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area;
the coal washing water monitoring information evaluation module comprises: the comprehensive evaluation coefficient of coal washing water recovery is used for extracting the monitoring subareas of each treatment technology of the coal washing wastewater area, and is compared with the preset comprehensive evaluation coefficient of coal washing water recovery and is treated;
the coal washing water monitoring information database module: the method is used for counting and storing relevant parameters of the comprehensive evaluation coefficients of the water recovery management and control early warning index and the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area in real time.
2. A coal washing water recovery system as claimed in claim 1, wherein: the concrete dividing mode of the coal washing water recycling type dividing module is as follows:
acquiring technical information of coal washing wastewater treatment of a coal company to be supervised, dividing wastewater which needs to be subjected to coal washing water recovery into monitoring subareas according to different types of treatment technologies, and marking the monitoring subareas of the coal washing wastewater areas as 1 and 2 … … n.
3. A coal washing water recovery system as claimed in claim 2, wherein: the specific acquisition mode of the coal washing water monitoring information acquisition module is as follows:
the water quality information acquisition unit: the pollutant emission concentration, the coal washing wastewater amount and the wastewater filtering solid particulate matter amount of the monitoring subareas of each treatment technology used for collecting the coal washing wastewater area are respectively marked as、/>、/>Where i=1, 2 … … n, i denotes the ith processing technology monitoring sub-region number;
the water recovery cost information acquisition unit: the coal washing water consumption, the recovery water consumption and the wastewater recovery investment cost for collecting the monitoring subareas of each treatment technology of the coal washing wastewater area are respectively marked as、/>、/>Where i=1, 2 … … n, i denotes the ith processing technology monitor sub-region number.
4. A coal washing water recovery system according to claim 3, wherein: the water quality safety index of the coal washing water is specifically as follows:
monitoring the coal washing wastewater quantity of each treatment technology monitoring subarea of the coal washing wastewater areaAmount of solid particulate matter filtered from wastewaterSubstitution formula: />Obtaining the stability of each impurity>；
Monitoring impurity stability of subareas by using each treatment technology of coal washing wastewater areaSubstitution formula:obtaining the mean value of impurity stability>Wherein n represents the number of sub-regions monitored by the processing technique;
the calculation formula of the water quality safety index of the coal washing water of each treatment technology monitoring subarea of the analysis coal washing wastewater area:
wherein->Water quality safety index of coal washing water expressed as the ith treatment technology monitoring subarea,/for>Monitoring pollutant emission concentration of a sub-zone, denoted as ith treatment technique, +>Expressed as a preset pollutant standard emission concentration threshold,/->Impurity stability, denoted i-th processing technique monitoring sub-region,>expressed as a difference between a predetermined pollutant discharge concentration and a standard concentration,/->Expressed as mean value of impurity stability,/->Expressed as an impact factor on the water quality safety index of the coal washing water.
5. A coal wash water recovery system as defined in claim 4, wherein: the coal washing water recycling economic benefit index specifically comprises the following steps:
extracting water charge of the region of the coal company to be supervised and marking as；
Monitoring the water consumption for coal washing of each treatment technology monitoring subarea of coal washing wastewater areaWater recovery->Substitution formula:obtaining the recovery rate of each coal washing water, and the maximum value of the recovery rate of the extracted coal washing water is marked as +.>The minimum value is marked +.>；
The calculation formula of the economic benefit index of coal washing water recovery of each treatment technology monitoring subarea of the analysis coal washing wastewater area:
wherein->The coal-washing water recovery economic benefit index expressed as the ith treatment technology monitoring subarea, ++>Denoted as the ith processing technology monitoring subregionWaste water recovery input cost of field,/-)>The recovery water quantity of the sub-area is monitored, denoted as ith treatment technique, ">The water charge for the sub-area is monitored for the ith treatment technique,the recovery of coal wash water, denoted as the ith treatment technique monitoring sub-zone,>expressed as maximum value of recovery of water for washing coal, < >>Expressed as the minimum recovery of coal washing water.
6. A coal wash water recovery system as defined in claim 5, wherein: the monitoring information management and control module for the coal washing water specifically comprises the following components:
extracting the water quality safety index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area, and substituting the water quality safety index into a formula:obtaining the water quality safety control index of the coal washing water>Wherein->The index compensation factor is expressed as a coal washing water quality safety control index, and e is expressed as a natural constant;
comparing the water quality safety control index of the coal washing water with a preset water quality safety control index of the coal washing water in each treatment technology monitoring subarea of the coal washing wastewater area, screening out the treatment technology monitoring subareas with the water quality safety control index of the coal washing water being greater than the preset water quality safety control index of the coal washing water, arranging the abnormal areas according to the sequence from large to small to obtain arranged treatment technology monitoring subareas, and informing related managers of checking the water quality safety condition according to the arranged sequence;
extracting coal washing water recovery economic benefit indexes of each treatment technology monitoring subarea of the coal washing wastewater area, and substituting the indexes into a formula:obtaining the economic benefit management and control index of the coal washing water recovery>Wherein->The index compensation factor is expressed as a coal washing water recycling economic benefit management and control index, and e is expressed as a natural constant;
comparing the economic benefit control index of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area with a preset economic benefit control index of coal washing water recovery, screening out the treatment technology monitoring subareas of which the economic benefit control index of coal washing water recovery is larger than the preset economic benefit control index of coal washing water recovery, arranging the abnormal areas according to the sequence from large to small to obtain the arranged treatment technology monitoring subareas, and informing related managers in sequence according to the arranged sequence to check the economic benefit of the recovery process.
7. A coal wash water recovery system as defined in claim 6, wherein: the calculation formula of the comprehensive evaluation coefficient of coal washing water recovery is as follows:
+/>wherein->The comprehensive evaluation coefficient of the coal washing water recovery of the monitoring subarea of the ith treatment technology is expressed,water quality safety index of coal washing water expressed as the ith treatment technology monitoring subarea,/for>The coal-washing water recovery economic benefit index is expressed as the ith treatment technology monitoring sub-area.
8. A coal wash water recovery system as defined in claim 7, wherein: the concrete evaluation mode of the coal washing water monitoring information evaluation module is as follows:
acquiring a comprehensive evaluation coefficient of the recovery of the coal washing water of each treatment technology monitoring subarea of the coal washing wastewater area, comparing the comprehensive evaluation coefficient with a preset comprehensive evaluation coefficient of the recovery of the coal washing water, and if the comprehensive evaluation coefficient of the recovery of the coal washing water of a certain treatment technology monitoring subarea of the coal washing wastewater area is larger than the preset comprehensive evaluation coefficient of the recovery of the coal washing water, indicating that the comprehensive evaluation index of the recovery of the coal washing water through the treatment technology is abnormal, otherwise, indicating that the comprehensive evaluation index of the recovery of the coal washing water through the treatment technology is normal.
9. A coal wash water recovery system as defined in claim 8, wherein: comprises the following steps:
step S01: the recovery type of coal washing water is divided into: dividing wastewater to be recycled into monitoring subareas according to different types of treatment technologies, and numbering the monitoring subareas of the treatment technologies of the coal washing wastewater area;
step S02: collecting monitoring information of coal washing water: specifically, the wastewater treatment information of each treatment technology monitoring subarea of the coal washing wastewater area is collected;
step S03: and (3) coal washing water monitoring information processing: the method comprises the steps of obtaining a coal washing water quality safety index of each treatment technology monitoring subarea of a coal washing wastewater area through calculation of a water quality information acquisition unit, and obtaining a coal washing water recovery economic benefit index of each treatment technology monitoring subarea of the coal washing wastewater area through calculation of a water recovery cost information acquisition unit;
step S04: monitoring and controlling the coal washing water: the method specifically comprises the steps of monitoring the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of a subarea according to each treatment technology of the coal washing wastewater area, obtaining the water quality safety control index of the coal washing water and the economic benefit control index of the coal washing water recovery, and treating;
step S05: and (3) analyzing monitoring information of coal washing water: specifically, according to the water quality safety index of the coal washing water and the economic benefit index of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area, the comprehensive evaluation coefficient of the coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area is obtained through calculation of a comprehensive evaluation model of the coal washing water recovery;
step S06: coal washing water monitoring information evaluation: specifically, the comprehensive evaluation coefficient of coal washing water recovery of each treatment technology monitoring subarea of the coal washing wastewater area is extracted, compared with the preset comprehensive evaluation coefficient of coal washing water recovery, and treated;
step S07: coal washing water monitoring information database: the method is characterized by comprising the steps of counting and storing relevant parameters of water recovery control early warning indexes and comprehensive coal washing water recovery evaluation coefficients of all treatment technology monitoring subareas in a coal washing wastewater area in real time.
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