CN114275866A - Intelligent dosing flocculation precipitation system - Google Patents
Intelligent dosing flocculation precipitation system Download PDFInfo
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- CN114275866A CN114275866A CN202111575799.3A CN202111575799A CN114275866A CN 114275866 A CN114275866 A CN 114275866A CN 202111575799 A CN202111575799 A CN 202111575799A CN 114275866 A CN114275866 A CN 114275866A
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Abstract
The invention discloses an intelligent dosing flocculation precipitation system, and relates to the technical field of water treatment. This intelligence adds medicine flocculation and precipitation system, add medicine switch board, medicament pond, reaction sedimentation tank and clean water basin including intelligence, be provided with measuring pump and flowmeter on the pipeline between medicament pond and the reaction sedimentation tank, intelligence adds the output of medicine switch board and the input data connection of measuring pump, is provided with two sewage suspended solid detectors in reaction sedimentation tank and the clean water basin, is provided with temperature sensor in the reaction sedimentation tank, and temperature sensor's output and intelligence add the input data connection of medicine switch board. This intelligence adds medicine flocculation and precipitation system adopts intelligence to add the medicine switch board, through carrying out on-line monitoring to intaking, play water quality of water to feed back monitoring data to adding the medicine switch board, adding the medicine switch board and comparing current water quality data, the dynamic calculation medicament demand, real-time adjustment measuring pump operating frequency realizes accurate medicine, saves the medicament cost.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to an intelligent dosing flocculation and precipitation system.
Background
The current activated sludge treatment process is like A2O, the oxidation ditch, CASS etc. is used widely by municipal sewage treatment plant, it basically reaches the design standard of putting into production to go out water quality, along with the national concern to the environment, force improvement sewage discharge standard, lead to the input of flocculating agent to increase substantially, and the administration system of sewage treatment plant is mostly still in extensive type's management at present, in order to reach discharge standard, often blindly increase the input, this must cause the liquid medicine expense high, also produce a large amount of sediment mud simultaneously, the treatment cost of mud also correspondingly increases, the expense that finally leads to sewage treatment is high enough, make sewage treatment plant operation enterprise prepare the pressure, consequently, the control of the input becomes the key of sewage treatment plant operation and management.
The existing flocculating agent adding system of the sewage treatment plant has the following problems: the existing sewage treatment process is designed according to the water quality condition of inlet water and the emission standard requirement, but the real-time change of the water quality of inlet water is found in the actual operation, the water quality is unstable, the quality of outlet water is still unstable after the treatment of the process, the traditional flocculating agent adding system mostly adopts a quantitative mode, the adding amount of a medicament cannot be adjusted in real time according to the change of the water quality, although an enterprise can test the quality of the outlet water at regular time, the water quality can be periodically improved by adjusting the adding amount according to the result, increasing the aeration amount or prolonging the precipitation time and other measures, the control method of post-treatment makes the water quality good and bad, and the real-time emission standard can not be achieved.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, provides an intelligent dosing flocculation and precipitation system, and can solve the problem that the traditional flocculating agent dosing system mostly adopts a quantitative mode and cannot adjust the dosing amount of a medicament in real time according to the change of water quality.
In order to achieve the purpose, the invention provides the following technical scheme: intelligent medicine flocculation and precipitation system adds medicine switch board, medicament pond, reaction sedimentation tank and clean water basin including intelligence, be provided with measuring pump and flowmeter on the pipeline between medicament pond and the reaction sedimentation tank, the output of measuring pump and the receiving terminal data connection that intelligent medicine switch board added, the output of intelligence medicine switch board and the input data connection of measuring pump are provided with two sewage suspended solid detectors in reaction sedimentation tank and the clean water basin, the output of two sewage suspended solid detectors all adds the input data connection of medicine switch board with intelligence, be provided with the temperature sensor in the reaction sedimentation tank, the output of temperature sensor and the input data connection of intelligence medicine switch board.
Preferably, an AtXmega series single chip microcomputer chip is arranged in the intelligent dosing control cabinet.
Preferably, the sewage suspension detector detects SS solubility value (suspended solid concentration) and COD (chemical oxygen demand) solubility value in the reaction sedimentation tank and the clear water tank.
Preferably, a medicament concentration online monitor is arranged in the medicament pool.
Preferably, a pipeline conveying mode is adopted between the medicament pool and the reaction sedimentation pool.
The application method of the intelligent dosing flocculation precipitation system comprises the following specific steps:
s1, setting initialization parameters in the intelligent dosing control cabinet in advance, wherein the parameters are as follows:
a. setting the alarm range of water inlet parameters (SS, water temperature and COD) of the reaction sedimentation tank;
b. setting a minimum surplus coefficient;
c. setting an alarm range of effluent parameters (SS, COD) of the reaction sedimentation tank;
d. inputting corresponding data of the flow and the operating frequency of the metering pump, simultaneously requiring no less than 5 groups of data, acquiring a curve fitting method, and analyzing a mathematical model of the supply amount and the operating frequency of the metering pump;
e. a drug reaction time interval is set.
S2, before the medicine adding system operates, enough medicine amount in the medicine pool is firstly ensured, the problem that the medicine in the medicine pool is not interrupted in the operation process is ensured, and then the concentration of the medicine in the medicine pool and the water inlet quality parameters (SS, water temperature, flow and COD) of the reaction sedimentation tank are collected.
And S3, judging whether the intake water parameters exceed the limits according to the parameters collected in the step S2, if the collected intake water parameters (SS, water temperature and COD) exceed the preset alarm range, calculating the required amount of the medicament according to the collected medicament concentration and the intake water quality parameters (SS, water temperature, flow and COD), and calculating the medicament supply amount of the metering pump according to the surplus coefficient.
S3-1, calculating the operation frequency of the metering pump through a mathematical model of the metering pump (the mathematical model of the metering pump is that a user needs to test the relation data of not less than 5 groups of medicament flow and operation frequency on site, and a digital model of the metering pump is constructed in a curve fitting mode), and setting the operation parameters of the pump by the metering pump.
And S4, collecting data of water outlet parameters (SS and COD), judging whether the water outlet parameters exceed the limit, and if the data detected in the step S3 do not exceed the preset alarm range, directly carrying out the step.
S4-1, if the water outlet parameters (SS, COD) are larger than the preset alarm range, the surplus coefficient is increased by 5%, and the medicament supply amount and the operation frequency of the metering pump are recalculated according to the new surplus coefficient.
And S4-2, if the water outlet parameters (SS, COD) are smaller than the preset alarm range, the surplus coefficient is reduced by 5%, and the medicament supply amount and the operation frequency of the metering pump are recalculated according to the new surplus coefficient.
S5, adding the flocculating agent into the reaction sedimentation tank, and allowing the agent to fully play a role after a period of reaction time, so that the margin coefficient adjustment interval is longer than the reaction time of the agent.
Compared with the prior art, the invention has the beneficial effects that:
(1) this intelligence adds medicine flocculation and precipitation system, adopt intelligence to add the medicine switch board, through intaking, go out water quality of water and carry out on-line monitoring, and give the medicine switch board with the monitoring data feedback, it compares current water quality data to add the medicine switch board, the dynamic calculation medicament demand, adjust measuring pump operating frequency in real time, realize accurate medicine, intelligence adds the medicine switch board and can realize intelligent automatic reagent feeding, can replace artifical medicament ratio experiment and tradition and add medicine calculation mode, realize accurate control of dosing, save the medicament cost, quality of water is up to standard and is not influenced by the quality of water of intaking, water quality of water stabilization has been ensured.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a block diagram of an intelligent dosing flocculation precipitation system of the present invention;
FIG. 2 is a flow chart of the intelligent dosing flocculation precipitation system of the invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, greater than, less than, exceeding, etc. are understood as excluding the present numbers, and the above, below, inside, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the present invention provides a technical solution: intelligent medicine flocculation and precipitation system adds medicine switch board, medicament pond, reaction sedimentation tank and clean water basin including intelligence, adopts the pipe-line transportation mode to be connected between medicament pond and the reaction sedimentation tank, is provided with measuring pump and flowmeter on the pipeline between medicament pond and the reaction sedimentation tank simultaneously, so the measuring pump can control the medicament pond and carry the delivery volume to medicament in the reaction sedimentation tank, and the flowmeter is used for detecting and adds the medicine flow, and the output pipeline and the clean water basin of reaction sedimentation tank are connected.
Further, an AtXmega series single chip microcomputer chip is arranged in the intelligent dosing control cabinet.
Further, the output end of the metering pump is in data connection with the receiving end of the intelligent dosing control cabinet, the output end of the intelligent dosing control cabinet is in data connection with the input end of the metering pump, and therefore the operation state of the metering pump can be controlled through the intelligent dosing control cabinet, and the conveying amount of the medicament conveyed into the reaction sedimentation tank can be controlled.
Further, be provided with medicament concentration on-line monitoring appearance in the medicament pond, medicament concentration on-line monitoring appearance is current model simultaneously: and the output end of the online medicament concentration monitor is in data connection with the receiving end of the intelligent medicament adding control cabinet.
Furthermore, two sewage suspended matter detectors are arranged in the reaction sedimentation tank and the clean water tank, the model of the sewage suspended matter detector is SS-2A, therefore, the SS solubility value (SS refers to the concentration of solid suspended matter) and the COD solubility value in the reaction sedimentation tank and the clean water tank are detected by the sewage suspended matter detectors, the output ends of the two sewage suspended matter detectors are in data connection with the input end of the intelligent dosing control cabinet, a water temperature sensor is arranged in the reaction sedimentation tank, the output end of the water temperature sensor is in data connection with the input end of the intelligent dosing control cabinet, thus, the water temperature sensor transmits the water temperature data in the reaction sedimentation tank into the intelligent dosing control cabinet, the intelligent dosing control cabinet carries out on-line monitoring on the water quality of inlet water and outlet water and feeds the monitoring data back to the dosing control cabinet, and the dosing control cabinet compares the current water quality data, and the required amount of the medicament is dynamically calculated, the running frequency of the metering pump is adjusted in real time, and accurate medicament feeding is realized.
Referring to fig. 2, the present invention also provides a technical solution: the application method of the intelligent dosing flocculation precipitation system comprises the following specific steps:
s1, setting initialization parameters in the intelligent dosing control cabinet in advance, wherein the parameters are as follows:
a. setting the alarm range of water inlet parameters (SS, water temperature and COD) of the reaction sedimentation tank;
b. setting a minimum surplus coefficient;
c. setting an alarm range of effluent parameters (SS, COD) of the reaction sedimentation tank;
d. inputting corresponding data of the flow and the operating frequency of the metering pump, simultaneously requiring no less than 5 groups of data, acquiring a curve fitting method, and analyzing a mathematical model of the supply amount and the operating frequency of the metering pump;
e. a drug reaction time interval is set.
S2, before the medicine adding system operates, enough medicine amount in the medicine pool is firstly ensured, the problem that the medicine in the medicine pool is not interrupted in the operation process is ensured, and then the concentration of the medicine in the medicine pool and the water inlet quality parameters (SS, water temperature, flow and COD) of the reaction sedimentation tank are collected.
And S3, judging whether the intake water parameters exceed the limits according to the parameters collected in the step S2, if the collected intake water parameters (SS, water temperature and COD) exceed the preset alarm range, calculating the required amount of the medicament according to the collected medicament concentration and the intake water quality parameters (SS, water temperature, flow and COD), and calculating the medicament supply amount of the metering pump according to the surplus coefficient.
S3-1, calculating the operation frequency of the metering pump through a mathematical model of the metering pump (the mathematical model of the metering pump is that a user needs to test the relation data of not less than 5 groups of medicament flow and operation frequency on site, and a digital model of the metering pump is constructed in a curve fitting mode), and setting the operation parameters of the pump by the metering pump.
And S4, collecting data of water outlet parameters (SS and COD), judging whether the water outlet parameters exceed the limit, and if the data detected in the step S3 do not exceed the preset alarm range, directly carrying out the step.
S4-1, if the water outlet parameters (SS, COD) are larger than the preset alarm range, the surplus coefficient is increased by 5%, and the medicament supply amount and the operation frequency of the metering pump are recalculated according to the new surplus coefficient.
And S4-2, if the water outlet parameters (SS, COD) are smaller than the preset alarm range, the surplus coefficient is reduced by 5%, and the medicament supply amount and the operation frequency of the metering pump are recalculated according to the new surplus coefficient.
S5, adding the flocculating agent into the reaction sedimentation tank, and allowing the agent to fully play a role after a period of reaction time, so that the margin coefficient adjustment interval is longer than the reaction time of the agent.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (6)
1. Intelligent medicine flocculation and precipitation system, its characterized in that: intelligence adds medicine switch board, the medicament pond, reaction sedimentation tank and clean water basin, be provided with measuring pump and flowmeter on the pipeline between medicament pond and the reaction sedimentation tank, the output of measuring pump and the receiving terminal data connection that intelligent adds the medicine switch board, intelligence adds the output of medicine switch board and the input data connection of measuring pump, be provided with two suspended solid of sewage detectors in reaction sedimentation tank and the clean water basin, the output of two suspended solid of sewage detectors all adds the input data connection of medicine switch board with intelligence, be provided with temperature sensor in the reaction sedimentation tank, temperature sensor's output and intelligent input data connection who adds the medicine switch board.
2. The intelligent dosing flocculation and precipitation system of claim 1, wherein: and an AtXmega series single chip microcomputer chip is arranged in the intelligent dosing control cabinet.
3. The intelligent dosing flocculation and precipitation system of claim 1, wherein: the sewage suspended matter detector detects SS solubility value (solid suspended matter concentration) and COD (chemical oxygen demand) solubility value in the reaction sedimentation tank and the clear water tank.
4. The intelligent dosing flocculation and precipitation system of claim 1, wherein: and a medicament concentration online monitor is arranged in the medicament pool.
5. The intelligent dosing flocculation and precipitation system of claim 1, wherein: and a pipeline conveying mode is adopted between the reagent tank and the reaction sedimentation tank.
6. The application method of the intelligent dosing flocculation precipitation system comprises the following specific application steps, and is characterized in that:
s1, setting initialization parameters in the intelligent dosing control cabinet in advance, wherein the parameters are as follows:
a. setting the alarm range of water inlet parameters (SS, water temperature and COD) of the reaction sedimentation tank;
b. setting a minimum surplus coefficient;
c. setting an alarm range of effluent parameters (SS, COD) of the reaction sedimentation tank;
d. inputting corresponding data of the flow and the operating frequency of the metering pump, simultaneously requiring no less than 5 groups of data, acquiring a curve fitting method, and analyzing a mathematical model of the supply amount and the operating frequency of the metering pump;
e. a drug reaction time interval is set.
S2, before the medicine adding system operates, enough medicine amount in the medicine pool is firstly ensured, the problem that the medicine in the medicine pool is not interrupted in the operation process is ensured, and then the concentration of the medicine in the medicine pool and the water inlet quality parameters (SS, water temperature, flow and COD) of the reaction sedimentation tank are collected.
And S3, judging whether the intake water parameters exceed the limits according to the parameters collected in the step S2, if the collected intake water parameters (SS, water temperature and COD) exceed the preset alarm range, calculating the required amount of the medicament according to the collected medicament concentration and the intake water quality parameters (SS, water temperature, flow and COD), and calculating the medicament supply amount of the metering pump according to the surplus coefficient.
S3-1, calculating the operation frequency of the metering pump through a mathematical model of the metering pump (the mathematical model of the metering pump is that a user needs to test the relation data of not less than 5 groups of medicament flow and operation frequency on site, and a digital model of the metering pump is constructed in a curve fitting mode), and setting the operation parameters of the pump by the metering pump.
And S4, collecting data of water outlet parameters (SS and COD), judging whether the water outlet parameters exceed the limit, and if the data detected in the step S3 do not exceed the preset alarm range, directly carrying out the step.
S4-1, if the water outlet parameters (SS, COD) are larger than the preset alarm range, the surplus coefficient is increased by 5%, and the medicament supply amount and the operation frequency of the metering pump are recalculated according to the new surplus coefficient.
And S4-2, if the water outlet parameters (SS, COD) are smaller than the preset alarm range, the surplus coefficient is reduced by 5%, and the medicament supply amount and the operation frequency of the metering pump are recalculated according to the new surplus coefficient.
S5, adding the flocculating agent into the reaction sedimentation tank, and allowing the agent to fully play a role after a period of reaction time, so that the margin coefficient adjustment interval is longer than the reaction time of the agent.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114545985A (en) * | 2022-04-21 | 2022-05-27 | 神美科技有限公司 | Floc characteristic monitoring and process feedback-based dosing system and method |
| CN115159645A (en) * | 2022-05-27 | 2022-10-11 | 安徽普氏生态环境工程有限公司 | Dosing self-calibration method, device and equipment based on historical data |
| CN116282428A (en) * | 2023-02-20 | 2023-06-23 | 华能国际电力股份有限公司上海石洞口第二电厂 | Method for detecting abnormal rapid drug addition of sedimentation tank in advance |
| CN117023741A (en) * | 2023-08-14 | 2023-11-10 | 佛山市禅城区供水有限公司 | Multi-parameter load composite water treatment method and system in flocculation process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717143A (en) * | 2009-11-24 | 2010-06-02 | 河海大学 | Method for controlling automatic flocculant addition |
| CN104229958A (en) * | 2014-08-13 | 2014-12-24 | 上海环保工程成套有限公司 | Full-automatic intelligent dosing system |
| CN106227251A (en) * | 2016-08-30 | 2016-12-14 | 河南华东工控技术有限公司 | Intelligent dosing system |
| CN113772755A (en) * | 2021-08-26 | 2021-12-10 | 江西铜业股份有限公司 | Method and system for optimizing reagent feeding for treating mining and beneficiation wastewater pollutants |
-
2021
- 2021-12-21 CN CN202111575799.3A patent/CN114275866A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717143A (en) * | 2009-11-24 | 2010-06-02 | 河海大学 | Method for controlling automatic flocculant addition |
| CN104229958A (en) * | 2014-08-13 | 2014-12-24 | 上海环保工程成套有限公司 | Full-automatic intelligent dosing system |
| CN106227251A (en) * | 2016-08-30 | 2016-12-14 | 河南华东工控技术有限公司 | Intelligent dosing system |
| CN113772755A (en) * | 2021-08-26 | 2021-12-10 | 江西铜业股份有限公司 | Method and system for optimizing reagent feeding for treating mining and beneficiation wastewater pollutants |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114545985A (en) * | 2022-04-21 | 2022-05-27 | 神美科技有限公司 | Floc characteristic monitoring and process feedback-based dosing system and method |
| CN115159645A (en) * | 2022-05-27 | 2022-10-11 | 安徽普氏生态环境工程有限公司 | Dosing self-calibration method, device and equipment based on historical data |
| CN115159645B (en) * | 2022-05-27 | 2024-01-23 | 安徽普氏生态环境有限公司 | Method, device and equipment for dosing self-calibration based on historical data |
| CN116282428A (en) * | 2023-02-20 | 2023-06-23 | 华能国际电力股份有限公司上海石洞口第二电厂 | Method for detecting abnormal rapid drug addition of sedimentation tank in advance |
| CN116282428B (en) * | 2023-02-20 | 2024-06-14 | 华能国际电力股份有限公司上海石洞口第二电厂 | Method for detecting abnormal rapid drug addition of sedimentation tank in advance |
| CN117023741A (en) * | 2023-08-14 | 2023-11-10 | 佛山市禅城区供水有限公司 | Multi-parameter load composite water treatment method and system in flocculation process |
| CN117023741B (en) * | 2023-08-14 | 2024-03-19 | 佛山市禅城区供水有限公司 | Multi-parameter load composite water treatment method and system in flocculation process |
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