CN117486339B - Dosing method and equipment for water treatment - Google Patents

Dosing method and equipment for water treatment Download PDF

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Publication number
CN117486339B
CN117486339B CN202410003810.6A CN202410003810A CN117486339B CN 117486339 B CN117486339 B CN 117486339B CN 202410003810 A CN202410003810 A CN 202410003810A CN 117486339 B CN117486339 B CN 117486339B
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China
Prior art keywords
concentration
stirring
mixed solution
heating
valve
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Active
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CN202410003810.6A
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Chinese (zh)
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CN117486339A (en
Inventor
张卫平
张孝洪
傅舟跃
段建锋
张宇翔
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Zhoushan Water Supply Co ltd
Tianjin Zhiyun Water Technology Co ltd
Northwestern Polytechnical University
Original Assignee
Zhoushan Water Supply Co ltd
Tianjin Zhiyun Water Technology Co ltd
Northwestern Polytechnical University
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Application filed by Zhoushan Water Supply Co ltd, Tianjin Zhiyun Water Technology Co ltd, Northwestern Polytechnical University filed Critical Zhoushan Water Supply Co ltd
Priority to CN202410003810.6A priority Critical patent/CN117486339B/en
Publication of CN117486339A publication Critical patent/CN117486339A/en
Application granted granted Critical
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10Maintenance of mixers
    • B01F35/11Maintenance of mixers using fluids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10Maintenance of mixers
    • B01F35/12Maintenance of mixers using mechanical means
    • B01F35/123Maintenance of mixers using mechanical means using scrapers for cleaning mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20Measuring; Control or regulation
    • B01F35/21Measuring
    • B01F35/213Measuring of the properties of the mixtures, e.g. temperature, density or colour
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20Measuring; Control or regulation
    • B01F35/21Measuring
    • B01F35/2132Concentration, pH, pOH, p(ION) or oxygen-demand
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20Measuring; Control or regulation
    • B01F35/22Control or regulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80Forming a predetermined ratio of the substances to be mixed
    • B01F35/81Forming mixtures with changing ratios or gradients
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F35/95Heating or cooling systems using heated or cooled stirrers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5209Regulation methods for flocculation or precipitation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F2035/99Heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305Treatment of water, waste water or sewage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention provides a dosing method for water treatment and equipment thereof, wherein the equipment comprises: the solid material adding device is used for adding flocculant; the liquid material adding device is used for adding aqueous solution, the liquid material adding device is communicated with a solid material conveying pipeline of the solid material adding device, and the solid material conveying pipeline is cleaned before the aqueous solution is added into the heating and stirring device; the heating and stirring device is used for stirring or heating and stirring the flocculant and the aqueous solution, and N concentration detection devices are arranged in the heating and stirring device at intervals; the control device is connected with the heating and stirring device and the concentration detection device; the valve control device is connected with the control device, a material valve on the solid material adding device, a liquid valve on the liquid material adding device and a first feeding valve of the heating and stirring device; the utility model discloses a material pollution can be reduced, the degree of consistency of stirring is guaranteed, can dispose multiple flocculating agent in advance, and the precision of flocculating agent can be guaranteed.

Description

Dosing method and equipment for water treatment
Technical Field
The application relates to the technical field of environmental protection, in particular to a dosing method for water treatment and equipment thereof.
Background
Water treatment (wastewater treatment): the process of purifying tap water and sewage to meet the water quality requirement of draining a certain water body or reusing the tap water and the sewage; the conventional treatment process flow of the water works comprises the following steps: flocculation, precipitation, filtration and disinfection; the specific operation steps are as follows:
firstly, carrying out coagulation reaction; secondly, sedimentation treatment; thirdly, filtering; fourthly, sterilizing after filtering; in the tap water production process, original mucilage and various suspended particles in the water are separated in the coagulation process, and pathogenic microorganisms in the raw water are inhibited or destroyed in the disinfection process after filtration, wherein, the method of chlorination also ensures that the tail end of the urban pipe network maintains a certain residual chlorine content so as to control bacteria propagation and prevent pollution, and achieves the relevant standard of sanitary Standard for Drinking Water (GB 5749-2006).
In the first step, in the coagulation reaction, the flocculation effect greatly affects the subsequent sedimentation and filtration, and the flocculation effect depends on the type of suspended particles, the temperature of water, the pH value of the water, the addition amount of a coagulant and a coagulant aid, the mixing time of medicament diffusion and floc formation, hydraulic conditions and the like; the flocculant is mainly divided into an inorganic polymeric flocculant and an organic polymeric flocculant, wherein the most commonly used inorganic polymeric flocculant is PAC (polyaluminium chloride) and PFS (polymeric ferric sulfate), is easy to dissolve in water, has certain corrosiveness, and can be added in a solution form or in a particle form; the most commonly used organic polymeric flocculant is PAM (polyacrylamide), which is soluble in water, but has a very slow dissolution rate, and is generally prepared into a solution and then added, and is divided into an anionic type and a cationic type, wherein the anionic type is generally used for sewage flocculant, the cationic type is generally used for sludge dewatering, the PAM is easy to absorb water and deliquesce to form blocks, and a storage place needs to be dried.
When the existing tap water is treated, flocculant is added into raw water, and when solvent is added, the flocculant is generally added manually or by a screw conveyor, and when the screw conveyor conveys powdery solvent, different materials are mixed, so that the flocculation effect of the flocculant is affected; when the solution is added, the solution is proportioned firstly, and then is put into raw water after proportioning is finished, the storage time cannot be effectively monitored, so that the concentration of the solvent cannot be ensured under the condition that the concentration of the solution is possibly changed during the process of putting in the solution; when multiple flocculating agents are adopted in the manner of instant preparation, the concentration of the flocculating agents cannot be accurately ensured by manual preparation, and the solution is prepared by a plurality of stirring devices in the automatic preparation, so that the use cost of equipment is increased.
The applicant searches the prior art in detail and searches the comparison file as follows:
prior art 1: CN201621037640.0 is a flocculant allocation system, which provides a technical scheme, including dissolving the case, feeding device, control system, agitating unit and conveyer pipe, feeding device includes the charging portion and the connecting portion that communicate each other, connecting portion intercommunication dissolves the case, charging portion is provided with the charging valve and is used for detecting the infrared sensor of the volume of solid in the charging portion, infrared sensor and charging valve all are connected with control system electricity, first water inlet and first discharge gate have been seted up to dissolving the case, first water inlet intercommunication has the inlet tube, first discharge gate and conveyer pipe intercommunication, the conveyer pipe is provided with first discharge valve, agitating unit sets up in dissolving the case; the flocculant preparation system can accurately prepare the concentration of the flocculant, so that the flocculant is rapidly dissolved and quantitatively conveyed to each terminal, and the automatic operation is more convenient and quicker; the application realizes automatic dosing of the solution, but in the application, a mode of instant preparation and instant use is adopted, so that when various flocculants are used, the operation is difficult, the sufficiency of stirring in a dissolving tank cannot be ensured, and the concentration of the solution cannot be accurately ensured; and when the solution of ratio difference, then need place different types of flocculating agent in feeding device, the condition that different types of flocculating agent mix appears easily through this application to influence the effect of follow-up flocculation.
Prior art 2: a method, system, terminal and storage medium for dosing tap water flocculant with application number CN202211361247.7, wherein a tap water flocculant dosing system comprises: the first acquisition module is used for detecting the instantaneous flow of the water inlet; the second acquisition module is used for detecting instantaneous parameters of the water quality of tap water; the first dosing device is used for adding flocculant into tap water; the third acquisition module is used for detecting the real-time instantaneous flow of the first medicine adding device; the data processing module is electrically connected with the first acquisition module, the second acquisition module, the third acquisition module and the first medicine adding device respectively; the method comprises the steps of obtaining the total dosing amount in preset time based on preset dosing rules according to the instantaneous flow of a water inlet and the instantaneous parameters of water quality; obtaining a dosing scheme in the preset time according to the total dosing amount in the preset time and the real-time instantaneous flow of the dosing device; the technical scheme is that the automatic dosing device is disclosed, but the specific structure of the first dosing device is not disclosed, the problem of how to avoid pollution of various flocculating agents is not solved, and pretreatment of corresponding concentration can not be carried out according to the time of putting in.
In summary, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
The dosing method for water treatment comprises the following steps:
step one: calculating the concentration of the initial mixed solution according to the concentration of the mixed solution of the flocculating agent, the adding time of the mixed solution of the flocculating agent and the preservation temperature of the mixed solution of the flocculating agent;
step two: calculating the flocculant dosage and the water solution dosage according to the concentration of the initial mixed solution and the addition amount of the flocculant mixed solution;
step three: the liquid material adding device adds part of the water solution in the heating and stirring device, then the heating and stirring device is used for stirring, and the solid material adding device adds the flocculating agent in the heating and stirring device while stirring;
step four: the liquid material adding device continuously adds the rest aqueous solution in the heating and stirring device, and the aqueous solution enters the heating and stirring device after passing through the solid material adding device; the heating and stirring device continuously stirs the flocculant and the aqueous solution to form an initial mixed solution;
step five: n concentration detection devices in the heating and stirring device detect the concentration of the initial mixed solution at each liquid site, signals are respectively transmitted to the control device, the control device compares the detected N concentration data with the concentration of the initial mixed solution calculated in the step one, and whether the difference value of the N concentration data and the concentration of the initial mixed solution accords with a preset difference value range is judged; if yes, jumping to the step six, otherwise jumping to the step seven or the step eight or the step nine;
Step six: the control device controls the heating and stirring device to stop rotating, opens a feeding valve on the heating and stirring device, and conveys the stirred initial mixed solution to the constant temperature box, wherein the constant temperature box comprises a plurality of boxes for storing different initial mixed solutions;
step seven: when one group of the differences from the N-1 group of the differences do not accord with the preset difference range, the control device controls the heating stirring device to continue stirring until the differences from the N groups of the differences accord with the preset difference range, and the step six is skipped; setting the stirring continuing time, and sending an alarm prompt if the N groups of differences do not all meet the preset difference range after the set time is exceeded;
step eight: the N groups of differences do not accord with the preset difference range, wherein the number of the concentration values detected by the N concentration detection devices is A, the number of the concentration values detected by the N concentration detection devices is less than the calculated concentration value of the initial mixed solution, the number of the concentration values detected by the N concentration detection devices is B, whether the A is greater than the B is judged, if yes, the step is skipped to the step ten, and if not, the step is skipped to the step eleven;
step nine: the N groups of differences do not accord with the preset difference range, wherein the number of the concentration values detected by the N concentration detection devices is A, the number of the concentration values detected by the N concentration detection devices is less than the number of the concentration values of the calculated initial mixed solution, B, and when A is equal to B, stirring is continued until the number of the concentration values of the calculated initial mixed solution is consistent with the seventh step or the eighth step; setting stirring time for stirring, and sending out an alarm prompt when the stirring time exceeds the stirring time and A is still equal to B;
Step ten: the control device controls the liquid material adding device to be opened, the water solution is added in the heating and stirring device, the initial mixed solution is stirred through the heating and stirring device, and the step six is skipped when the concentration data detected by the N concentration detecting devices and the concentration difference value of the initial mixed solution calculated in the step one accord with the preset difference value range; setting stirring time, exceeding the set standard time, and sending an alarm prompt if the concentration data detected by the N concentration detection devices and the concentration of the initial mixed solution calculated in the step one do not all accord with a preset difference range;
step eleven: the control device controls the solid material adding device to be opened, a flocculating agent is added in the heating and stirring device, the mixed solution is stirred through the heating and stirring device, and the step six is skipped when the concentration data detected by the N concentration detecting devices and the concentration of the initial mixed solution calculated in the step one accord with a preset difference range; setting stirring time, exceeding the set standard time, and sending an alarm prompt if the concentration data detected by the N concentration detection devices and the concentration of the mixed solution calculated in the step one do not all accord with the preset difference range.
As a preferable mode, the adding time includes the sum of the time difference between the start of stirring and the addition of the chemical and the time of adding the chemical from the incubator into the sedimentation tank, and the chemical is added from the incubator into the sedimentation tankThe time calculation method of (a) is as follows:wherein Y represents the amount of the mixed solution to be added, A represents the cross-sectional area of the pipe, L represents the length of the pipe, and V represents the flow rate of the mixed solution.
As a preferred embodiment, the method for calculating the initial concentration is as follows:the method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>Represents the percentage of flocculant concentration at the moment of flocculant delivery, +.>Indicating the concentration of flocculant to be dosed.
As a preferable scheme, the liquid material adding device comprises a liquid feeding pipeline and the solid material adding device comprises a solid material conveying pipeline, wherein the liquid feeding pipeline and the solid material conveying pipeline are communicated with a water outlet pipeline, and the water outlet pipeline detects whether flocculant is contained in the liquid feeding pipeline and the solid material conveying pipeline or not.
As a preferable scheme, in the step six, the control device controls the heating stirring device to stop rotating, the first feeding valve is opened, the M concentration detection devices between the first feeding valve and the second feeding valve are used for detecting the concentration of the mixed solution, the M concentration detection devices are used for sending the detected concentration value of the mixed solution to the control device, the control device is compared with the calculated concentration value to judge whether the difference value between the concentration value detected by the M concentration detection devices and the standard value accords with the preset difference value range or not, if so, the second feeding valve is controlled to be opened, the mixed solution enters the incubator, and if not, an alarm prompt is sent when the M difference values do not accord with the preset difference value range; when one group of the difference values to the M-1 group of the difference values do not accord with the preset difference value range, the first feeding valve is closed, the mixed solution between the first feeding valve and the second feeding valve is led out, the heating and stirring device is started to continuously stir the mixed solution for a preset time, when the difference values of the M groups accord with the preset difference value range, the first feeding valve is opened, the concentration of the mixed solution between the M concentration detection devices is detected, and if one group of the difference values to the M-1 group of the difference values do not accord with the preset difference value range, an alarm prompt is sent out.
As a preferable scheme, the calculation formula of the heating time in the heating and stirring device is as follows:the method comprises the steps of carrying out a first treatment on the surface of the Wherein T: the temperature at which the solution needs to be heated, t: heating time; s: the rate at which the temperature of the solution increases; />: average temperature in the stirring device.
A dosing device for water treatment comprising:
the solid material adding device is used for adding flocculant;
the liquid material adding device is used for adding aqueous solution, and is communicated with a solid material conveying pipeline of the solid material adding device, so that the solid material conveying pipeline can be cleaned by the aqueous solution;
the heating and stirring device is used for stirring or heating and stirring the flocculant and the water solution, N concentration detection devices are arranged in the heating and stirring device at intervals, N is more than or equal to 2, and the concentration detection devices are used for detecting the concentration of the initial mixed solution of the water solution and the flocculant in the heating and stirring device;
the control device is connected with the heating and stirring device and the concentration detection device and comprises a calculation module, an analysis module and a storage module, wherein the calculation module calculates the initial mixed solution concentration in the heating and stirring device according to the concentration of the flocculant mixed solution when the flocculant mixed solution is added, the adding time of the mixed solution and the preservation temperature of the mixed solution; the analysis module is used for analyzing whether the difference value between the mixed solution concentration detected by the N concentration detection devices and the mixed solution concentration obtained by calculation of the calculation module accords with a preset difference value range or not; when the stirring time is reached, the concentration data detected by the N concentration detection devices and the calculated concentration of the mixed solution are both in accordance with a preset difference range; the storage module is used for storing the set difference range and the duration of the stirring time;
The valve control device is connected with the control device, the valve on the solid material adding device, the valve on the liquid material adding device and the valve of the heating and stirring device, and sends opening or closing instructions of all the valves to the valve control device, or a worker inputs the opening or closing instructions of all the valves into the valve control device, and the valve control device controls the opening and closing of all the valves;
concentration alarm device: the concentration alarm device is connected with the control device and the N concentration detection devices, the concentrations detected by the N concentration detection devices are displayed through the concentration alarm device, an analysis module of the control device is used for analyzing whether the concentration data detected by the N concentration detection devices and the calculated concentration of the mixed solution meet the preset difference range or not when the stirring time is reached, otherwise, a signal is sent to the concentration alarm device, and the concentration alarm gives an alarm prompt.
The solution recycling device is connected with the heating and stirring device and is used for recycling redundant solution in the heating and stirring device, and new concentration proportioning is carried out in the solution recycling device; for recovering the aqueous solution used for cleaning the heating and stirring device.
As a preferable scheme, the valve of the heating and stirring device comprises a first feeding valve and a second feeding valve, M concentration detection devices I are arranged between the first feeding valve and the second feeding valve, M is more than or equal to 2, the M concentration detection devices I are respectively connected with the control device, preferably, the M concentration detection devices I are also respectively connected with the concentration alarm device, the M concentration detection devices detect the concentration of the mixed solution between the first feeding valve and the second feeding valve, and the detected concentration value of the mixed solution is sent to the control device and the concentration alarm device.
As a preferred scheme, solid material adds device includes the solid material pipeline with heating agitating unit intercommunication, be equipped with material valve I, material valve II on the solid material pipeline, the solid material pipeline still is equipped with the measuring pump in the lower part of material valve II, material valve I, material valve II, measuring pump are connected with valve controlling means, the upper portion of solid material pipeline is equipped with the backup pad, the backup pad is fixed with the mounting panel, the solid material pipeline passes backup pad, mounting panel, be fixed with on the mounting panel and place the chamber, place the intracavity and be equipped with a plurality of bleviles, bleviles are connected with controlling means, place the top in chamber and be equipped with the lid, place the active carbon package between chamber and the lid, be equipped with a plurality of circulating fans on the lid.
As a preferable scheme, the outer side of the solid material conveying pipeline is coated with an electric heating wire.
As a preferred scheme, blevile of push includes the material chamber, the material intracavity is equipped with the pushing plate, and the pushing plate is connected with pushing power supply, one side that the material chamber is close to solid-state material pipeline is equipped with the baffle, the baffle removes power supply with the baffle and is connected, the top in material chamber is for dismantling the lid, can dismantle and be equipped with a plurality of ventilation holes on the lid.
As a preferred scheme, the liquid material adding device comprises a water tank, the bottom of the water tank is communicated with a solid material conveying pipeline through a liquid feeding pipeline, the position where the liquid feeding pipeline is communicated with the solid material conveying pipeline is arranged on the solid material conveying pipeline between a first material valve and a second material valve, the liquid feeding pipeline is provided with a first liquid valve, the solid material conveying pipeline is also connected with a water outlet pipeline, and the water outlet pipeline is provided with a water pump and a second liquid valve.
As a preferable scheme, the tail end of the water outlet pipeline is also provided with an acrylamide concentration analyzer, an aluminum content detector and an iron content detector, and the acrylamide concentration analyzer, the aluminum content detector and the iron content detector are respectively connected with a control device.
As a preferable scheme, the heating and stirring device comprises a stirring tank body, wherein a mixed material conveying pipeline is arranged at the bottom of the stirring tank body, the stirring tank body and the mixed material conveying pipeline are respectively connected with a solution recovery device through a leading-out pipeline, and the stirring tank body is provided with N concentration detection devices, wherein N is more than or equal to 2; the mixed material conveying pipeline is provided with a feeding valve, the stirring tank body is internally provided with a stirring shaft, the stirring shaft is connected with a stirring motor, scraping plates are symmetrically arranged on the outer side of the stirring shaft and are in contact with the inner wall of the stirring tank body, the outer side of the stirring shaft is also provided with heating stirring blades between the scraping plates, and the feeding valve, the stirring motor, the heating stirring blades and the concentration detection device are respectively connected with a control device.
As a preferable scheme, the feeding valve comprises a first feeding valve and a second feeding valve, and M concentration detection devices are arranged on a mixed material conveying pipeline between the first feeding valve and the second feeding valve, wherein M is more than or equal to 2.
The application has the following advantages:
1. when the solution is added, the attached flocculant can be brought into the heating and stirring device through the solid material conveying pipeline, so that the concentration is ensured, the cleaning effect is also realized, the mixing and pollution of materials are reduced when the next flocculant is put in, the purity of the medicine is ensured, and the water treatment effect is better;
2. The concentration is calculated in advance according to the adding time of the mixed solution, so that the concentration during the adding is ensured, the solution can be configured at any time, the solution is not required to be proportioned at fixed time, and the concentration accuracy during the adding is ensured; a plurality of thermostats are arranged, and a plurality of flocculating agents are configured within 12 hours in advance, so that the concentration of the flocculating agents can be ensured, a plurality of stirring devices are not needed, the use cost of equipment is reduced, and the working efficiency is improved;
3. the arrangement of the plurality of concentration detection devices and the first concentration detection device can ensure the full stirring of the initial mixed solution in the heating and stirring device, ensure the concentration to reach the optimal standard and ensure the optimal flocculation effect; alarming is timely carried out according to the setting, so that inaccurate concentration detection caused by problems of a concentration detection device and the concentration detection device is prevented;
4. the control device, the concentration alarm device and the valve control device can be used independently, so that when the control device has a problem, the equipment can still be used normally, and high precision can be ensured through manual cooperation;
5. the heating stirring device is provided with the scraping plate, scrapes the inner wall of the stirring tank body, and can clean the inner wall of the stirring tank body in time when stirring materials, so that the adhesion of medicines is avoided, and the medicine stirring uniformity is ensured.
Drawings
FIG. 1 is a logic block diagram of a dosing method for water treatment of the present application;
FIG. 2 is a schematic view of the apparatus of the present application at an angle I;
FIG. 3 is a schematic view of the structure of the second angle of the apparatus of the present application;
FIG. 4 is a schematic view of the solid material adding device of the present application;
FIG. 5 is a schematic view of a portion of the structure of FIG. 4;
FIG. 6 is a schematic structural view of the pushing device of the present application;
FIG. 7 is a schematic structural view of the stirring device of the present application;
FIG. 8 is a schematic block diagram of a valve controller of the present application;
FIG. 9 is a schematic block diagram of a concentration alarm of the present application;
FIG. 10 is a schematic view of the apparatus with a solution recovery device;
reference numerals:
1. solid material adding device 2, liquid material adding device 3 and solid material conveying pipeline
4. Heating stirring device 5, concentration detection device 6, waterproof box 7 and waterproof box mounting plate
8. Support 9, first feeding valve 10, second feeding valve 11 and concentration detection device I
12. Support plate 13, mounting plate 14, placement cavity 15, pushing device 16 and cover body
17. Mounting groove 18, circulating fan 19, material cavity 20, pushing plate 21 and pushing power source
22. Baffle 23, baffle moving power source 24, detachable cover 25, and vent hole
26. Water tank 27, liquid feeding pipeline 28, water outlet pipeline 29 and stirring tank body
30. Mixed material conveying pipeline 31, stirring shaft 32, stirring motor 33 and scraping plate
34. Gap 35, heating stirring blade 36, microcontroller 37, power supply module
38. Transceiver 39, input/output driver 40, 4G module 41, remote controller receiving module
42. Wired Ethernet interface 43, serial FLASH module 44 and solution recovery device
45. Support table 46, leading-out pipeline 47, singlechip 48, A/D conversion module
49. Signal modulation module 50, display 51, key 52, clock circuit
53. Alarm device 54, communication module 55, peripheral expander.
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to fig. 1 to 10. It should be noted that the detailed description herein is presented for purposes of illustration and explanation only and is not intended to limit the invention.
Embodiment one:
the embodiment provides a dosing method for water treatment, which comprises the following steps:
step one: calculating the concentration of the initial mixed solution according to the concentration of the mixed solution of the flocculating agent, the adding time of the mixed solution of the flocculating agent and the preservation temperature of the mixed solution of the flocculating agent; the method for calculating the concentration of the initial mixed solution comprises the following steps: The method comprises the steps of carrying out a first treatment on the surface of the Wherein (1)>Represents the percentage of flocculant concentration at the moment of dosing, +.>The concentration of the flocculant to be thrown in, namely the concentration when the flocculant mixed solution is added; />Selecting according to table 1, table 2, table 3; if the PAM solution of 0.1% is added after 4 hours, the concentration of the PAM solution is reduced by 4 hours, so the initial mixed solution in the heating and stirring device 4 needs to be slightly higher than the concentration of the solution when the PAM solution is actually added, and according to experimental data, if the concentration of the PAM solution is 0.1% when the PAM solution is added, the concentration of the mixed solution stirred before 4 hours is 0.1187%; the adding time of the flocculant mixed solution comprises the sum of the time difference between the beginning of stirring and the adding of the medicament and the time of adding the medicament into the sedimentation tank from the constant temperature box, and the calculating method of the time of adding the medicament into the sedimentation tank from the constant temperature box is as follows: />=/>Wherein Y represents the dosage of the flocculant mixed solution to be added, A represents the cross-sectional area of a pipeline, L represents the length of the pipeline, and V represents the flow rate of the flocculant mixed solution; if the time difference between the start of stirring of the flocculant and the addition of the chemical is 4 hours, the time of adding the chemical from the incubator to the precipitation tank is calculated by the diameter, length, flow rate of the solution, etc. of the addition pipe, and if the calculation result is 5 minutes, the addition time is 4 hours and 5 minutes.
Step two: calculating the flocculant dosage and the water solution dosage according to the concentration of the initial mixed solution and the addition amount of the flocculant mixed solution;
step three: the liquid material adding device 2 adds part of aqueous solution in the heating and stirring device 4, preferably 50-70% of the dosage of the aqueous solution, then the heating and stirring device 4 stirs, and the solid material adding device 1 adds flocculant in the heating and stirring device 4 while stirring; the types of the flocculating agent are selected according to the solution which is proportioned as required, and the method is not particularly limited;
step four: after the addition of the dosage of the flocculant is completed, the rest aqueous solution is continuously added in the heating and stirring device 4 through the liquid material adding device 2, and the aqueous solution enters the heating and stirring device 4 after passing through the solid material adding device 1; the water solution can be carried into the heating and stirring device 4 through the solid material adding device 1 by the flocculant attached to the solid material conveying pipeline 3 of the solid material adding device 1, so that the concentration is ensured, the cleaning effect is also achieved, the mixing and pollution of materials are reduced when the next flocculant is put in, the purity of the medicine is ensured, and the water treatment effect is better; preferably, after cleaning, the solid material conveying pipeline 3 is heated, so that the pipeline is dried quickly, and the flocculating agent is prevented from being wetted; preferably, the liquid material adding device 2 comprises a liquid feeding pipeline 27, the solid material adding device 1 comprises a solid material conveying pipeline 3, wherein the liquid feeding pipeline 27 and the solid material conveying pipeline 3 are communicated with a water outlet pipeline 28, the water outlet pipeline 28 detects whether flocculant is contained in the liquid feeding pipeline 27 and the solid material conveying pipeline 3, if so, water solution is continuously introduced, the liquid feeding pipeline 27 and the solid material conveying pipeline 3 are cleaned, otherwise, the corresponding liquid valve II is closed, and the next proportioning of flocculant solution is waited; preferably, the calculation formula of the heating time in the heating and stirring device 4 is: The method comprises the steps of carrying out a first treatment on the surface of the Wherein T: temperature t at which the solution needs to be heated: heating time; />: the temperature rising speed of the solution is fixed, and corresponding values can be obtained according to experiments; />: average temperature in the stirring device; a plurality of temperature sensors are arranged in the heating and stirring device 4 and are used for detectingMeasuring the temperature of the mixed solution in the stirring device 4; the heating and stirring device 4 is used for stirring the flocculant and the aqueous solution to enable the flocculant and the aqueous solution to be fully dissolved to form an initial mixed solution;
step five: n concentration detection devices 5 are used for detecting the concentration of the initial mixed solution of each liquid site, the N concentration detection devices 5 are uniformly distributed on the heating and stirring device 4, the mixed solution is uniformly detected, the situation of non-uniform mixing is avoided, the concentration detection devices 5 are used for detecting the concentration of the liquid in the prior art, the N concentration detection devices 5 transmit signals to a control device, the control device compares N concentration data with the concentration of the initial mixed solution calculated in the step one, and whether the difference value of the N concentration data and the concentration of the initial mixed solution accords with a preset difference value range is judged; if yes, jumping to the step six, otherwise jumping to one of the step seven, the step eight and the step nine according to the specific situation;
Step six: the control device controls the heating and stirring device 4 to stop rotating and opens a feeding valve on the heating and stirring device 4; the stirred initial mixed solution is conveyed to a corresponding incubator, when the incubator reaches the adding time, a valve can be controlled to be opened to directly input into a sediment, the incubator comprises a plurality of flocculating agent solutions with different types and different concentrations, all flocculating agent initial mixed solutions to be added are prepared in advance, and then the flocculating agent initial mixed solutions are directly added, so that the concentration of each flocculating agent solution in the adding process can be ensured, and the flocculation effect is ensured to be optimal;
step seven: when one group of the differences from the N-1 group of the differences do not accord with the preset difference range, the control device controls the heating and stirring device 4 to continue stirring until the differences from the N groups of the differences accord with the preset difference range, and the step six is skipped; setting the stirring continuing time, and sending an alarm prompt if the N groups of differences do not all meet the preset difference range after the set time is exceeded; if 3 concentration detection devices 5 are arranged, when the difference values of 1 to 2 groups do not accord with the preset difference value range, the control device controls the heating and stirring device 4 to continue stirring until the difference values of 3 groups accord with the preset difference value range, and the step six is skipped; setting the stirring time, for example, 5 minutes, when the stirring time reaches 5 minutes, the concentration detected by the concentration detection device 5 still does not accord with the preset difference range, the control device sends a signal to the concentration alarm device, the concentration alarm device sends an alarm prompt, and staff intervenes to check whether the concentration detection device 5 has a problem; preferably, the N concentration detection devices 5 also send the detected concentrations to a concentration alarm device for display, and the concentration alarm device displays the concentrations detected by the N concentration detection devices 5, so that when a control device has a problem, the concentration of the initial mixed solution in the heating and stirring device 4 cannot be known;
Step eight: the N groups of differences do not accord with the preset difference range, wherein the number of the concentration values detected by the N concentration detection devices 5 is A, the number of the concentration values detected by the N concentration detection devices 5 is less than the number of the concentration values of the calculated initial mixed solution, B, whether the A is greater than the B is judged, if yes, the step is skipped to the step ten, and if not, the step is skipped to the step eleventh; assuming that the set difference range is 0.005%, the concentration ranges detected by the 3 concentration detection devices 5 are 0.13%, 0.15% and 0.093% respectively, and the calculated initial mixed solution concentration is 0.1187%, A is equal to 2, B is equal to 1, and the step is skipped to step ten;
step nine: if the difference value of the N groups does not accord with the preset difference value range, and if the difference value of the A is equal to the difference value of the B, continuing stirring until the difference value of the N groups accords with the step seven or the step eight; setting stirring time for stirring, and sending out an alarm prompt when the stirring time exceeds the stirring time and A is still equal to B; if the stirring time is set to be 6 minutes and the stirring time is set to be 6 minutes, the stirring time is still equal in quantity, and then the staff is prompted to perform manual intervention through an alarm, so that the concentration detection device 5 is checked to be problematic;
step ten: the control device controls the liquid material adding device 2 to be opened, the water solution is added into the heating and stirring device 4, the mixed solution is stirred through the heating and stirring device 4 until the concentration data detected by the N concentration detecting devices 5 and the concentration difference value of the mixed solution calculated in the step one accord with the preset difference value range, and the step six is skipped; setting stirring time, exceeding the set standard time, and sending an alarm prompt when the concentration data detected by the N concentration detection devices 5 and the concentration of the mixed solution calculated in the first step do not all accord with the preset difference range, wherein the alarm prompt prompts a worker to perform manual intervention, so that the concentration detection devices 5 are checked to be problematic;
Step eleven: the control device controls the solid material adding device 1 to be opened, a flocculating agent is added in the heating and stirring device 4, the initial mixed solution is stirred through the heating and stirring device 4 until the concentration data detected by the N concentration detecting devices 5 and the concentration difference value of the mixed solution calculated in the step one accord with the preset difference value range, and the step six is skipped; setting stirring time for stirring, and sending out an alarm prompt if the stirring time exceeds the stirring time and the stirring quantity is still equal; in the step, flocculant is added, a material valve II of the solid material adding device 1 is closed, and an aqueous solution is introduced to clean a solid material conveying pipeline 3, so that pollution among different types of flocculants is reduced;
embodiment two:
in this embodiment, the accuracy of the flocculant concentration can be further ensured, specifically:
in the sixth step, the control device controls the heating stirring device 4 to stop rotating, the first feeding valve 9 is opened, M (M is more than or equal to 2) concentration detection devices 11 between the first feeding valve 9 and the second feeding valve 10 detect the concentration of the mixed solution between the first feeding valve 9 and the second feeding valve 10, the types and structures of the concentration detection devices 11 and 5 are the same, different description modes are that the concentration detection devices 11 are used for distinguishing different positions, the M concentration detection devices 11 send detected concentration values of the mixed solution to the control device and the concentration alarm device, the concentration alarm device displays the concentration values detected by the concentration detection devices 11, when the control device avoids problems, the concentration values cannot be known, the control device compares the calculated concentration values of the initial mixed solution, and judges whether the difference value between the concentration values detected by the M concentration detection devices 11 and the calculated concentration of the initial mixed solution accords with a preset difference value range or not, if the difference value accords with the preset difference value range, the second feeding valve 10 is controlled to be opened, and the mixed solution flows into a corresponding constant temperature box; if not, when all the M differences do not accord with the preset difference range, an alarm prompt is sent to prompt staff to participate, and whether the first concentration detection device 11 has a problem is confirmed; when one group of the differences M-1 do not accord with the preset difference range, the first feeding valve 9 is closed, the mixed solution between the first feeding valve 9 and the second feeding valve 10 is led out, the heating and stirring device 4 is started to continuously stir the mixed solution for a set time, when the differences M accord with the preset difference range, the first feeding valve 9,M concentration detection device 11 is opened to continuously detect the concentration of the mixed solution, and if one group of the differences M-1 do not accord with the preset difference range, an alarm prompt is sent out.
Embodiment III:
the embodiment provides an intelligent dosing device for water treatment, comprising:
solid material adding device 1, solid material adding device 1 is used for adding the flocculating agent, and the flocculating agent includes: polyacrylamide, polyaluminium chloride, polymeric sulfuric acid;
the liquid material adding device 2 is used for adding an aqueous solution, the liquid material adding device 2 is communicated with the solid material conveying pipeline 3 of the solid material adding device 1, the aqueous solution is used for cleaning the solid material conveying pipeline 3, mixing and pollution of flocculating agents can be reduced, and the device is simple in structure and low in manufacturing cost; preferably, a heating device is wound on the outer side of the solid material conveying pipeline 3, so that the inner wall of the solid material conveying pipeline 3 can be quickly dried;
the heating and stirring device 4 is used for stirring or heating and stirring the flocculant and the water solution, N concentration detection devices 5,N which are arranged in the heating and stirring device 4 at intervals are more than or equal to 2, and the concentration detection device 5 is used for detecting the initial mixed concentration of the water solution and the flocculant in the heating and stirring device 4; because polyacrylamide and the like are not easy to dissolve in water, when organic polymer flocculant such as polyacrylamide and the like is added, the heating and stirring device 4 is used for heating the mixed liquid of the flocculant and the aqueous solution, so that the stirring uniformity is further ensured;
The control device is connected with the heating and stirring device 4 and the concentration detection device 5, wherein the control device comprises a calculation module, an analysis module and a storage module, and the calculation module calculates the initial mixed solution concentration in the heating and stirring device 4 according to the concentration of the mixed solution of the flocculating agent when the mixed solution is added, the adding time of the mixed solution and the preservation temperature of the mixed solution; the analysis module is used for analyzing whether the difference value between the mixed solution concentration detected by the N concentration detection devices 5 and the mixed solution concentration obtained by calculation of the calculation module accords with a preset difference value range; when the stirring time is reached, the concentration data detected by the N concentration detection devices 5 and the calculated concentration of the mixed solution are both in accordance with a preset difference range; the storage module is used for storing the set difference range and the duration of the stirring time; the control device is arranged in the waterproof box 6, the waterproof box 6 is fixed on the waterproof box mounting plate 7, the waterproof box mounting plate 7 is arranged on the outer side of the heating stirring device 4 and is connected with the bracket 8 in a welding mode, the waterproof box mounting plate 7 is connected with the bracket 8 in a well-known fixing mode such as bonding, welding and screw connection, the N concentration detection devices 5 send detected signals to the control device, the control device compares concentration values detected by the concentration detection devices 5 with calculated concentration values, and specific steps are not described in detail in the description of the embodiment;
The valve control device is arranged in the waterproof box 6 and is connected with the control device, the material valve on the solid material adding device 1, the liquid valve on the liquid material adding device 2 and the feeding valve of the heating and stirring device 4, and sends opening or closing instructions of all valves to the valve control device, or a worker inputs the opening or closing instructions of all the valves into the valve control device, and the valve control device controls the opening and closing of all the valves; when the control device has problems, the valve control device can be used independently, so that the control of the valve is not influenced, and the working efficiency is ensured;
the concentration alarm device is connected with the control device and the N concentration detection devices 5, the concentrations detected by the N concentration detection devices 5 are displayed through the concentration alarm device, an analysis module of the control device is used for analyzing whether the concentration data detected by the N concentration detection devices 5 and the calculated concentration of the mixed solution meet the preset difference range or not when the stirring time is reached, otherwise, a signal is sent to the concentration alarm device, and the concentration alarm gives an alarm prompt; the control device is connected with the concentration alarm device and the valve control device through Bluetooth or other communication modules.
As a preferable scheme, the solution recovery device 44 is included, the solution recovery device 44 is placed on a supporting table 45, the bottom of the supporting table 45 and the bottom of the bracket 8 are positioned on the same plane, and contact with the ground and the like is performed;
the solution recovery device 44 is connected with the heating and stirring device 4 through a lead-out pipeline 46 and is used for recovering redundant solution in the heating and stirring device 4 and carrying out new concentration proportioning in the heating and stirring device 4; for recovering the aqueous solution used for cleaning the heating and stirring device 4; specifically, if the liquid level in the heating and stirring device 4 reaches the highest point but still fails to reach the desired concentration, the solution in the heating and stirring device 4 is led out to a part of the solution recovery device 44 and is rearranged, and when the solution recovery device 44 needs to be cleaned, only the aqueous solution is led in, and after the cleaning is completed, the cleaned wastewater is led into the solution recovery device 44.
In this embodiment, through the communication of the liquid material adding device 2 and the solid material adding device 1, material pollution can be reduced, stirring uniformity is guaranteed through the cooperation of the heating stirring device 4, the concentration detecting device 5, the control device and the valve control device, stirring concentration is adjusted in real time, concentration of the agent added in the flocculation reaction is guaranteed, and the flocculation reaction effect is better.
Embodiment four:
the concentration of the mixed medicine can be further ensured in the embodiment, so that the sewage treatment effect is improved, and specifically:
the feeding valve of the heating stirring device 4 comprises a first feeding valve 9 and a second feeding valve 10, the second feeding valve 10 is arranged at the lower part of the first feeding valve 9, M concentration detection devices 11 are arranged between the first feeding valve 9 and the second feeding valve 10, M is more than or equal to 2, the first concentration detection device 11 is connected with a control device and a concentration alarm device, an extraction pipeline 46 is connected to a mixed material conveying pipeline 30 between the first feeding valve 9 and the second feeding valve 10, the extraction pipeline 46 is connected with a solution recovery device 44, the first feeding valve 9,M is opened by the connection of the first concentration detection device 11 to detect the concentration of a mixed solution of flocculant and aqueous solution between the first feeding valve 9 and the second feeding valve 10, the detected concentration value of the mixed solution is sent to the control device and the concentration alarm device, the concentration alarm device displays the mixed solution value, the control device compares the detected concentration value with the calculated concentration value, when the difference between the concentration value detected by the M concentration detection devices 11 and the calculated concentration value accords with a preset difference range, the control device controls the second feeding valve to open to correspondingly store the mixed solution in a constant temperature tank; the first concentration detection device 11 of M (M is greater than or equal to 2) between the first feeding valve 9 and the second feeding valve 10 detects the concentration of the mixed solution between the first concentration detection device 11 and the second concentration detection device 5, and the type, structure and the like of the first concentration detection device 11 are the same, and different description modes are used for distinguishing different positions, and the detection principle of the first concentration detection device 11 is referred to the second embodiment and is not described in detail herein.
The first concentration detection device 11 detects the secondary concentration of the initial mixed solution to be introduced into the incubator, and can adjust the stirring and heating device 4, the addition amount of the flocculant and the addition amount of the aqueous solution in real time, thereby realizing the purposeThe concentration of the mixed solution is precisely controlled, so that the optimal concentration of the flocculant is ensured; as a preferable solution, a plurality of temperature sensors are disposed in the heating and stirring device 4 at intervals, the plurality of temperature sensors are respectively connected with the controller, the temperature sensors respectively transmit the detected temperatures to the control device, the control device processes the data, and more preferably, the time calculation method for heating the heating and stirring device 4 is as follows:the method comprises the steps of carrying out a first treatment on the surface of the Wherein T: temperature t at which the solution needs to be heated: heating time; />: the speed of the rise of the solution temperature is different from the S corresponding to the mixed solution of different flocculating agents and aqueous solutions, and according to experiments, the numerical value of each mixed solvent is fixed; />: average temperature in the stirring device, average temperature in the heating stirring device 4, and average value of a plurality of temperature sensors.
Fifth embodiment:
the embodiment provides a specific dosing device for water treatment, wherein:
The solid material adding device 1 comprises a solid material conveying pipeline 3 communicated with a heating and stirring device 4,
preferably, the outer side of the solid material conveying pipeline 3 is coated with an electric heating wire, the electric heating wire is connected with a control device, and the heating of the electric heating wire can quickly dry the solid material conveying pipeline 3 to prevent the powdery flocculant from being wetted and agglomerated; the solid material conveying pipeline 3 is also prevented from being provided with water, so that the flocculating agent is wetted and agglomerated and attached to the inner wall; the upper end and the lower end of the solid material conveying pipeline 3 are respectively provided with a first material valve and a second material valve, the solid material conveying pipeline 3 is also provided with a metering pump, the first material valve, the second material valve and the metering pump are connected with a valve control device, the valve control device is used for controlling the opening and closing of the first material valve and the second material valve, the upper part of the solid material conveying pipeline 3 is provided with a supporting plate 12, the lower part of the supporting plate 12 is provided with a bracket 8, the bracket 8 is contacted with a placing surface such as the ground and the like, the supporting plate 12 is fixedly provided with a mounting plate 13, the mounting plate 13 and the supporting plate 12 are fixedly arranged in a fixing manner commonly used in the prior art through bonding, welding, screw connection and the like, the solid material conveying pipeline 3 is communicated with the supporting plate 12 and the mounting plate 13, a placing cavity 14 is fixedly arranged on the mounting plate 13, the placing cavity 14 is in sealing connection with the mounting plate 13 and can also be formed in an integrated forming mode, a plurality of pushing devices 15 are arranged in the placing cavity 14, the pushing devices 15 are connected with a control device, the control device controls the pushing devices 15 to act and is used for pushing different types of flocculating agents to enter the heating and stirring device 4 through the solid material conveying pipeline 3, a cover 16 is arranged at the top of the placing cavity 14, an activated carbon bag is placed between the placing cavity 14 and the cover 16, the cover 16 is in sealing connection with the top of the placing cavity 14, a mounting groove 17 is arranged at the top of the placing cavity 14, mounting protrusions matched with the mounting groove 17 are arranged at the lower part of the cover 16, a plurality of circulating fans 18 are arranged on the cover 16, and the cooperation of the circulating fans 18 and the activated carbon bag is used for ensuring that materials of the placing cavity 14 are in a dry state and reducing the occurrence probability of caking; more specifically: the pushing device 15 comprises a material cavity 19, the material cavity 19 is fixed on the mounting plate 13 and is in sealing connection with the mounting plate 13 to prevent materials from being spilled, a pushing plate 20 is arranged in the material cavity 19, preferably, the top of the pushing plate 20 is semicircular, the radius of the semicircle is equal to that of the solid material conveying pipeline 3, and the pushing of the flocculant is conveniently and well realized; the pushing plate 20 is connected with a pushing power source 21, the pushing power source 21 adopts an electric push rod, an air cylinder and the like, a baffle 22 is arranged on one side of the material cavity 19, which is close to the solid material conveying pipeline 3, the baffle 22 is connected with a baffle moving power source 23, the baffle moving power source 23 adopts the electric push rod, the air cylinder and the like, the baffle moving power source 23 is arranged at the top of the cover 16, when pushing is needed, the baffle moving power source 23 drives the baffle 22 to move upwards, the pushing power source 21 pushes the pushing plate 20 to move, materials are pushed to the solid material conveying pipeline 3 and enter the heating and stirring device 4 to be stirred, and a plurality of pushing devices 15 are arranged to store a plurality of different flocculating agents, so that the mixing and pollution of the materials are reduced, and the flocculation effect is improved; the top of material chamber 19 is detachable lid 24, and detachable lid 24 can be dismantled from the top of material chamber 19, conveniently adds the flocculating agent, is equipped with a plurality of ventilation holes 25 on the detachable lid 24, and ventilation hole 25, active carbon package, circulation fan 18's cooperation keeps the drying of the interior flocculating agent of material chamber 19, reduces phenomenons such as caking.
The liquid material adding device 2 comprises a water tank 26, the bottom of the water tank 26 is communicated with a solid material conveying pipeline 3 through a liquid feeding pipeline 27, the position where the liquid feeding pipeline 27 is communicated with the solid material conveying pipeline is arranged on the solid material conveying pipeline 3 between a first material valve and a second material valve, the liquid feeding pipeline 27 is provided with the first liquid valve, the solid material conveying pipeline 3 is also connected with a water outlet pipeline 28, and the water outlet pipeline 28 is provided with a water pump and the second liquid valve; closing liquid valve two, material valve one, aqueous solution gets into in heating agitating unit 4 through liquid feed pipeline 27, solid material pipeline 3, can be with the flocculating agent that depends on solid material pipeline 3 inner wall wash heating agitating unit 4, both can avoid the waste of flocculating agent, also can wash the pipeline, reduces the mixing of follow-up material and is the same, pollutes.
More preferably, the water outlet pipeline 28 is further provided with an acrylamide concentration analyzer, an aluminum content detector and an iron content detector, wherein the acrylamide concentration analyzer, the aluminum content detector and the iron content detector are connected with the control device, and are used for detecting whether the liquid contains a flocculating agent or not and sending data to the control device for analysis treatment, the acrylamide concentration analyzer is used for detecting an organic polymeric flocculating agent, and the aluminum content detector and the iron content detector are used for detecting an inorganic polymeric flocculating agent; after the preset flocculating agent and the water solution are added into the heating and stirring device 4, the first material valve and the second material valve of the solid material conveying pipeline are closed, the first liquid valve and the second liquid valve on the water outlet pipeline 28 are opened, the water solution is continuously introduced into the water outlet pipeline through the liquid feeding pipeline 27, the water solution flows out through the solid material conveying pipeline 3 and the water outlet pipeline 28, whether the water solution still contains flocculating agent residues or not is detected by the acrylamide concentration analyzer, the aluminum content detector and the iron content detector, when residues are not contained, the first liquid feeding valve and the second liquid valve are closed, the solid material conveying pipeline 3 is heated and dried, the next working cycle is prepared, the solid material conveying pipeline 3 can be further cleaned through the arrangement of the water outlet pipeline 28, the mixing and pollution of materials are further avoided, and the like, and the optimal flocculation reaction is ensured.
The heating and stirring device 4 comprises a stirring tank body 29, a mixed material conveying pipeline 30 is arranged at the bottom of the stirring tank body 29, the stirring tank body 29 and the mixed material conveying pipeline 30 are respectively connected with a solution recovery device 44 through a lead-out pipeline 46, and N concentration detection devices 5 are uniformly arranged on the stirring tank body 29, wherein N is more than or equal to 2; the mixed material conveying pipeline 30 is provided with a feeding valve, the feeding valve comprises a first feeding valve 9 and a second feeding valve 10 arranged at the lower end of the first feeding valve 9, a stirring shaft 31 is arranged in the stirring tank 29, the stirring shaft 31 is connected with a stirring motor 32, scraping plates 33 are symmetrically arranged on the outer side of the stirring shaft 31, the scraping plates 33 are contacted with the inner wall of the stirring tank 29, when the concentration detection device 5 is arranged on the side wall of the stirring tank 29, a gap 34 passing through the concentration detection device 5 is reserved by the scraping plates 33, the operation is not affected, heating stirring blades 35 are further arranged on the outer side of the stirring shaft 31 between the scraping plates 33, the lengths of the heating stirring blades 35 are smaller than those of the scraping plates 33, and the heating stirring blades 35 with different lengths can stir mixed solutions in the stirring tank 29 more uniformly, wherein the first feeding valve 9, the second feeding valve 10, the stirring motor 32 and the heating stirring blades 35 are connected with a control device; the scraper 33 can stir the mixed solution and scrape the inner wall of the stirring tank 29, so that the medicine is prevented from adhering to the inner wall of the stirring tank 29, and the stirring effect is better ensured.
This embodiment is prescribe a limit to the valve controller, and the valve controller in this application can the independent control first feeding valve 9, second feeding valve 10, material valve one, material valve two, liquid valve one, liquid valve two, prevents when the controller goes wrong, and equipment can't normally use, specifically: the valve controller comprises a microcontroller 36, the microcontroller 36 adopts STM32F207VE, the microcontroller 36 is connected with a power module 37, and the microcontroller 36 is also respectively connected with a transceiver 38, an input/output driver 39, a 4G module 40, a remote controller receiving module 41, a storage module, a wired Ethernet interface 42 and a serial FLASH module 43; the transceiver 38 employs an sp3458 chip; the power supply adopts 12-24V AC/DC input, is changed into 5V through DC-DC, is changed into 3.8V through a voltage stabilizer LDO for use by a 4G module 40, and is changed into 3.3V through the voltage stabilizer LDO for use by a microcontroller 36 and peripheral communication and for use by a storage module; the microcontroller 36 is also connected with an indicator lamp and a buzzer, so that stable networking work can be realized, the network connection of the server is guaranteed to be continuous for 10 days, the network disconnection time of 4G connection is at most 1 minute, the network disconnection time of wired connection is 2 seconds, the network disconnection time of a product is greatly improved, the performance is superior, and the work is stable and reliable.
As a preferred solution, the concentration alarm device includes a single chip microcomputer 47, the single chip microcomputer 47 adopts an STC89C52 single chip microcomputer, two clock generation modes of the STC89C52 are adopted, one is an internal clock mode, and the other is an external clock mode, the application follows the principle of reducing power consumption, adopts the internal clock mode, the single chip microcomputer 47 is connected with an a/D conversion module 48, preferably adopts an ADC0832 as an analog-to-digital conversion device, the a/D conversion module 48 is connected with a signal modulation module 49, the signal modulation module 49 is connected with N concentration detection devices 5 and M concentration detection devices 11, and the single chip microcomputer 47 is also respectively connected with a display screen 50, a key 51, a clock circuit 52, an alarm device 53 and a communication module 54, wherein the communication module 54 is connected with a control device; the alarm device 53 adopts at least one of a flash diode, a buzzer and a voice alarm device; the concentration alarm device can display the concentration of the concentration detection device 5 and the concentration detection device I11, avoid that the concentration in the heating stirring device 4 can not be known when the control device has a problem and is in communication connection with the control device, and when the alarm condition is met, the control device sends a signal to the concentration alarm device, the concentration alarm device alarms through a buzzer or is connected with external equipment through a communication module 54 and prompts in the form of sending information and the like, wherein the external equipment can adopt a computer, a mobile phone, a tablet and the like; preferably, in order to further improve the processing capability of the singlechip 47, the singlechip 47 is further connected with a peripheral expander 55, preferably an AT24C128 memory, to expand the memory space and improve the processing capability of the data.
In summary, the present application has the following advantages:
1. when the solution is added, the attached flocculant can be brought into the heating and stirring device through the solid material conveying pipeline, so that the concentration is ensured, the cleaning effect is also realized, the mixing and pollution of materials are reduced when the next flocculant is put in, the purity of the medicine is ensured, and the water treatment effect is better;
2. the concentration is calculated in advance according to the adding time of the mixed solution, so that the concentration during the adding is ensured, the solution can be configured at any time, the solution is not required to be proportioned at fixed time, and the concentration accuracy during the adding is ensured; a plurality of thermostats are arranged, and a plurality of flocculating agents are configured within 12 hours in advance, so that the concentration of the flocculating agents can be ensured, a plurality of stirring devices are not needed, the use cost of equipment is reduced, and the working efficiency is improved;
3. the arrangement of the plurality of concentration detection devices and the first concentration detection device can ensure the full stirring of the initial mixed solution in the heating and stirring device, ensure the concentration to reach the optimal standard and ensure the optimal flocculation effect; alarming is timely carried out according to the setting, so that inaccurate concentration detection caused by problems of a concentration detection device and the concentration detection device is prevented;
4. The control device, the concentration alarm device and the valve control device can be used independently, so that when the control device has a problem, the equipment can still be used normally, and high precision can be ensured through manual cooperation.

Claims (10)

1. The dosing method for water treatment is characterized by comprising the following steps of:
step one: calculating the concentration of the initial mixed solution according to the concentration of the mixed solution of the flocculating agent, the adding time of the mixed solution of the flocculating agent and the preservation temperature of the mixed solution of the flocculating agent;
step two: calculating the flocculant dosage and the water solution dosage according to the concentration of the initial mixed solution and the addition amount of the flocculant mixed solution;
step three: the liquid material adding device (2) adds part of the aqueous solution in the heating and stirring device (4), the heating and stirring device (4) stirs, and the solid material adding device (1) adds the flocculating agent in the heating and stirring device (4) at the same time of stirring;
step four: the liquid material adding device (2) continuously adds the rest aqueous solution in the heating and stirring device (4), and the aqueous solution enters the heating and stirring device (4) after passing through the solid material adding device (1); the heating and stirring device (4) is used for stirring the flocculant and the solution to form an initial mixed solution;
Step five: n concentration detection devices (5) in the heating and stirring device (4) detect the concentration of the initial mixed solution at each liquid site, and respectively transmit signals to a control device, and the control device compares the detected N concentration data with the concentration of the initial mixed solution calculated in the step one to judge whether the difference value of the N concentration data accords with a preset difference value range; if yes, jumping to the step six, otherwise jumping to the step seven or the step eight or the step nine;
step six: the control device controls the heating stirring device (4) to stop rotating, M concentration detection devices I (11) in the mixed material conveying pipeline (30) detect the concentration of the mixed solution at each liquid site, the M concentration detection devices I (11) send detected concentration values of the mixed solution to the control device, the control device compares the detected concentration values with calculated concentration values of the initial mixed solution, whether the difference value between the concentration values detected by the M concentration detection devices I (11) and the concentration values of the initial mixed solution accords with a preset difference value range or not is judged, if the difference value accords with the preset difference value range, a feeding valve on the heating stirring device (4) is opened, and the stirred initial mixed solution is conveyed to the constant temperature box; the incubator comprises a plurality of incubators for storing different initial mixed solutions;
Step seven: when one group of the differences from the N-1 group of the differences do not accord with the preset difference range, the control device controls the heating stirring device (4) to continuously stir until the differences from the N groups of the differences accord with the preset difference range, and the step six is skipped; setting the stirring continuing time, and sending an alarm prompt if the N groups of differences do not all meet the preset difference range after the set time is exceeded;
step eight: the N groups of differences do not accord with the preset difference range, wherein the number of the concentration values detected by the N concentration detection devices (5) is A, the number of the concentration values detected by the N concentration detection devices (5) is less than the number of the concentration values of the initial mixed solution obtained by calculation, and the number of the concentration values detected by the N concentration detection devices (5) is B;
step nine: the N groups of differences do not accord with the preset difference range, wherein the number of the concentration values detected by the N concentration detection devices (5) is A, the number of the concentration values detected by the N concentration detection devices (5) is less than the number of the concentration values of the calculated initial mixed solution, B, and when the number of the concentration values detected by the N concentration detection devices (5) is B, and A is equal to B, stirring is continued until the number of the concentration values of the calculated initial mixed solution accords with the step seven or the step eight; setting stirring time for stirring, and sending out an alarm prompt when the stirring time exceeds the stirring time and A is still equal to B;
Step ten: the control device controls the liquid material adding device (2) to be opened, the water solution is added into the heating and stirring device (4), the initial mixed solution is stirred through the heating and stirring device (4), and the step six is skipped when the concentration data detected by the N concentration detecting devices (5) and the concentration difference value of the initial mixed solution calculated in the step one are in accordance with a preset difference value range; setting stirring time, exceeding the set standard time, and sending an alarm prompt if the concentration data detected by the N concentration detection devices (5) and the concentration of the initial mixed solution calculated in the step one do not all accord with a preset difference range;
step eleven: the control device controls the solid material adding device (1) to be opened, a flocculating agent is added in the heating and stirring device (4), the mixed solution is stirred through the heating and stirring device (4), and the step six is skipped when the concentration data detected by the N concentration detecting devices (5) and the concentration of the initial mixed solution calculated in the step one are in accordance with a preset difference range; setting stirring time, exceeding the set standard time, and sending an alarm prompt if the concentration data detected by the N concentration detection devices (5) and the concentration of the mixed solution calculated in the step one do not all accord with the preset difference range.
2. The method according to claim 1, wherein in the first step, the adding time includes a sum of a time difference between a start of stirring and a time of adding the chemical from the oven to the sedimentation tank, and the calculating method of the time of adding the chemical from the oven to the sedimentation tank is as follows:wherein Y represents the amount of the mixed solution to be added, A represents the cross-sectional area of the pipe, L represents the length of the pipe, and V represents the flow rate of the mixed solution.
3. A dosing method for water treatment according to claim 1, characterized in that the liquid material adding device (2) comprises a liquid feed pipe (27), the solid material adding device (1) comprises a solid material conveying pipe (3), wherein the liquid feed pipe (27) and the solid material conveying pipe (3) are communicated with a water outlet pipe (28), and the water outlet pipe (28) detects whether flocculant is contained in the liquid feed pipe (27) and the solid material conveying pipe (3).
4. The dosing method for water treatment according to claim 1, wherein when the difference between the concentration value detected by the first concentration detecting device (11) and the concentration value of the initial mixed solution in the sixth step does not conform to a preset difference range, an alarm prompt is sent when all the M differences do not conform to the preset difference range; when one group of the difference values to the M-1 group of the difference values do not accord with a preset difference value range, the first feeding valve (9) is closed, the mixed solution between the first feeding valve (9) and the second feeding valve (10) is led out, the heating stirring device (4) is started to continuously stir the mixed solution, the mixed solution is stirred for a set time, when the difference values of the M groups accord with the preset difference value range, the first feeding valve (9) is opened, the first concentration detection device (11) continuously detects the concentration of the mixed solution between the M concentration detection devices, and if one group of the difference values to the M-1 group of the difference values do not accord with the preset difference value range, an alarm prompt is sent.
5. The dosing method for water treatment according to claim 1, wherein the calculation formula of the heating time in the heating and stirring device (4) is as follows:the method comprises the steps of carrying out a first treatment on the surface of the Wherein T: temperature t at which the solution needs to be heated: heating time; />: the rate at which the temperature of the solution increases; />: average temperature in the stirring device.
6. A dosing device for water treatment using a dosing method for water treatment according to any one of claims 1 to 5, comprising:
a solid material adding device (1) for adding flocculant;
the liquid material adding device (2) is used for adding aqueous solution, the liquid material adding device (2) is communicated with the solid material conveying pipeline (3) of the solid material adding device (1), and the solid material conveying pipeline (3) is cleaned before the aqueous solution enters the heating and stirring device (4);
the heating and stirring device (4) is used for stirring or heating and stirring the flocculant and the water solution, N concentration detection devices (5) are arranged in the heating and stirring device at intervals, N is more than or equal to 2, and the concentration detection devices (5) are used for detecting the concentration of the initial mixed solution of the water solution and the flocculant in the heating and stirring device (4);
The control device is connected with the heating and stirring device (4) and the concentration detection device (5), and comprises a calculation module, an analysis module and a storage module, wherein the calculation module calculates the initial mixed solution concentration in the heating and stirring device (4) according to the concentration of the mixed solution of the flocculating agent when the mixed solution is added, the adding time of the mixed solution and the preservation temperature of the mixed solution; the analysis module is used for analyzing whether the difference value between the mixed solution concentration detected by the N concentration detection devices (5) and the mixed solution concentration obtained by calculation of the calculation module accords with a preset difference value range or not; when the stirring time is reached, the concentration data detected by the N concentration detection devices (5) and the calculated concentration of the mixed solution are both in accordance with a preset difference range; the storage module is used for storing the set difference range and the duration of the stirring time;
the valve control device is connected with the control device, the material valve on the solid material adding device (1), the liquid valve on the liquid material adding device (2) and the valve of the heating and stirring device (4), and sends opening or closing instructions of all the valves to the valve control device, or a worker inputs the opening or closing instructions of all the valves into the valve control device, and the valve control device controls the opening and closing of all the valves;
Concentration alarm device: the concentration alarm device is connected with the control device and the N concentration detection devices (5), the concentration detected by the N concentration detection devices (5) is displayed through the concentration alarm device, an analysis module of the control device is used for analyzing whether concentration data detected by the N concentration detection devices (5) and the concentration of the calculated mixed solution meet a preset difference range or not when the stirring time is reached, otherwise, a signal is sent to the concentration alarm device, and the concentration alarm gives an alarm prompt.
7. The dosing device for water treatment according to claim 6, comprising a solution recovery device (44), wherein the solution recovery device (44) is connected to the heating and stirring device (4) and is used for recovering the excessive solution in the heating and stirring device (4), and a new concentration ratio is carried out in the solution recovery device (44); is used for recycling the water solution for cleaning the heating and stirring device (4).
8. The dosing device for water treatment according to claim 6, wherein the valve of the heating and stirring device (4) comprises a first feeding valve (9) and a second feeding valve (10), M concentration detection devices I (11) are arranged between the first feeding valve (9) and the second feeding valve (10), M is more than or equal to 2, and the M concentration detection devices I (11) are respectively connected with the control device and the concentration alarm device.
9. The dosing device for water treatment according to claim 6, wherein the solid material adding device (1) comprises a solid material conveying pipeline (3) communicated with a heating stirring device (4), a first material valve and a second material valve are arranged on the solid material conveying pipeline (3), a metering pump is further arranged at the lower part of the first material valve and the second material valve and connected with a valve control device, a supporting plate (12) is arranged at the upper part of the solid material conveying pipeline (3), a mounting plate (13) is fixed on the supporting plate (12), a placing cavity (14) is fixed on the mounting plate (13), a plurality of pushing devices (15) are arranged in the placing cavity (14), the pushing devices (15) are connected with a control device, a cover body (16) is arranged at the top of the placing cavity (14), an active carbon bag is placed between the placing cavity (14) and the cover body (16), and a plurality of circulating fans (18) are arranged on the cover body (16).
10. The dosing device for water treatment according to claim 9, wherein the pushing device (15) comprises a material cavity (19), a pushing plate (20) is arranged in the material cavity (19), the pushing plate (20) is connected with a pushing power source (21), a baffle plate (22) is arranged on one side, close to the solid material conveying pipeline (3), of the material cavity (19), the baffle plate (22) is connected with a baffle plate moving power source (23), a detachable cover body (24) is arranged at the top of the material cavity (19), and a plurality of ventilation holes (25) are formed in the detachable cover body (24).
CN202410003810.6A 2024-01-03 2024-01-03 Dosing method and equipment for water treatment Active CN117486339B (en)

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JP2013233532A (en) * 2012-05-11 2013-11-21 Hitachi Ltd Water-treatment system
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CN111377514A (en) * 2020-03-19 2020-07-07 安徽理工大学 Coal slime water concentration system with concentration detection function and concentration detection method thereof
CN113321283A (en) * 2021-07-15 2021-08-31 南京沃谱瑞环境研究院有限公司 Artificial intelligence adds medicine coagulating sedimentation complete sets and charge system thereof
CN219117238U (en) * 2023-02-16 2023-06-02 西安热工研究院有限公司 Water purifying agent dosing device based on coagulation reaction sedimentation tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002136805A (en) * 2000-11-02 2002-05-14 Japan Organo Co Ltd Polymer coagulant dissolving apparatus equipped with concentration measure device
JP2013233532A (en) * 2012-05-11 2013-11-21 Hitachi Ltd Water-treatment system
CN107219779A (en) * 2016-03-22 2017-09-29 周楠 The addition method and device of a kind of water treatment agent
WO2020048039A1 (en) * 2018-09-07 2020-03-12 珠海格力智能装备有限公司 Stirring device and urea machine having same
CN111377514A (en) * 2020-03-19 2020-07-07 安徽理工大学 Coal slime water concentration system with concentration detection function and concentration detection method thereof
CN113321283A (en) * 2021-07-15 2021-08-31 南京沃谱瑞环境研究院有限公司 Artificial intelligence adds medicine coagulating sedimentation complete sets and charge system thereof
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