CN110286070A - A kind of automatically quiet sink device and detection method - Google Patents

A kind of automatically quiet sink device and detection method Download PDF

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Publication number
CN110286070A
CN110286070A CN201910649758.0A CN201910649758A CN110286070A CN 110286070 A CN110286070 A CN 110286070A CN 201910649758 A CN201910649758 A CN 201910649758A CN 110286070 A CN110286070 A CN 110286070A
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China
Prior art keywords
quiet
quiet heavy
electric pushrod
cover
heavy cover
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CN201910649758.0A
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Chinese (zh)
Inventor
陈吉伦
易思垚
顾麟龙
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CHENGDU MUNICIPAL WATERWORKS Co Ltd
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CHENGDU MUNICIPAL WATERWORKS Co Ltd
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Priority to CN201910649758.0A priority Critical patent/CN110286070A/en
Publication of CN110286070A publication Critical patent/CN110286070A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30Control equipment
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/04Investigating sedimentation of particle suspensions

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  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Hydrology & Water Resources (AREA)
  • Dispersion Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present invention relates to Water warfare fields processed, specifically include a kind of automatically quiet sink device and detection method.The full-automatic quiet sink device includes the fixation bracket for being mounted on process pool pool wall, mobile quiet heavy cover mounting bracket and mobile quiet heavy cover.Setting driving device to move quiet heavy cover and can move relative to mounting bracket, and mobile quiet heavy cover mounting bracket can be relative to fixation support motion.The present invention realizes that long-range control is implemented by background control system, realizes the automation of quiet heavy sampling;The present invention forms closed housing by mobile quiet heavy cover and chassis and quantify to sampling amount and quiet heavy, is not influenced by peopleware and technical ability, guarantees the stability and accuracy sampled;The present invention, which is acquired by turbidity, temperature and the deposition thickness parameter to quiet heavy sample and is transmitted in backstage, combines computer big data analysis and rational management, it realizes and precisely adds water medicament reduction water producing cost and scientific guidance process pool spoil disposal processed, realize the digitization and high efficiency of quiet heavy experiment.

Description

A kind of automatically quiet sink device and detection method
Technical field
The present invention relates to Water warfare fields processed, and in particular to one monitored for coagulating after water factory's water adding of agent The full-automatic quiet sink device of kind and detection method.
Background technique
Coagulating monitoring is only a graduated cylinder shape device after existing water factory's water adding of agent, after being bundled with rope by manpower It is sampled in process pool, observation alumen ustum is stood after sampling and generates effect and sinking speed, and is taken respectively in the certain intervals time Clear liquid surveys turbidity to judge its effect of settling, adds the foundation of dose as adjustment on this basis.Existing quiet heavy equipment, operation Mode is extremely original, needs two people collaboration every time, inconvenient.No matter blowing and raining, The hot sun is high in the sky is both needed in outdoor progress, it is bitter not It may say.And quiet heavy effect is influenced by peopleware, technical ability, experiment accuracy is unstable.
Therefore, it is badly in need of developing a kind of full-automatic quiet sink device, realizes automation, the digitization, high efficiency, standard of quiet heavy experiment Trueization reduces artificial investment and improves working efficiency.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the above problems, providing a kind of full-automatic quiet sink device And detection method, the automatic progress of quiet heavy experiment is solved, and guarantee the accuracy of quiet heavy implementation, improves working efficiency.
The technical solution adopted by the invention is as follows:
A kind of full-automatic quiet sink device, including being mounted on the fixation bracket of process pool pool wall, mobile quiet heavy cover installs branch Frame and mobile quiet heavy cover;The quiet heavy hood pedestal of movement includes vertical support frame, and support frame is fixed on by elevating mechanism It can be moved up and down on fixed bracket on fixed rack;Vertical support frame lower end installation chassis is equipped with several positioning on chassis The fixed bracket of electric pushrod is installed in guide rail, vertical support frame upper end;The quiet heavy cover of movement is cylindric in obforms, is led by positioning Rail is mounted in vertical support frame, mobile quiet heavy cover bottom opening, and bottom can form closed housing with the chassis of vertical support frame, Barrel top is equipped with electric pushrod, and the electric pushrod other end is connect with the fixed bracket of electric pushrod, electric pushrod can be driven to make Mobile quiet heavy cover on positioning guide rail moves up and down;The quiet heavy cover upper surface of movement is equipped with transmissometer by opening up mounting hole With thermometer, mobile quiet heavy cover surface setting alumen ustum observation panel and deposition measure observation panel.The elevating mechanism and electric pushrod It can be controlled by PLC automatic control system.Simultaneously by the control of elevating mechanism and electric pushrod, online transmissometer data, biography It is handed to background control system and realizes that teledata is visible, equipment is controllable, picture is as it can be seen that automatic data collection, record;Background control System includes the man-machine interface at detection scene, and the host computer of Central Control Room and the control elevating mechanism connecting with host computer are pushed away with electronic The PLC component of bar is connected between each system, man-machine interface and host computer by Industrial Ethernet.
Further, it in the quiet heavy cover mounting bracket of the movement, is equipped between chassis and the fixed bracket of electric pushrod Electric pushrod rigid support;Electric pushrod lower end fixed groove is offered in the electric pushrod rigid support, electric pushrod can It is fastened in the fixed groove of electric pushrod lower end;Four positioning guide rails are installed between the chassis and electric pushrod rigid support, The top and bottom of the quiet heavy cover of movement is respectively provided with positioning disk, each reserved four apertures and positioning guide rail position on upper and lower positioning disk Set it is corresponding, convenient for will move it is quiet it is heavy cover be mounted on positioning guide rail.The mountable reinforcing rib in the quiet heavy cover upper surface of movement, adds Pusher bar support mounting hole is set in strengthening tendons for installing electric pushrod.Further, the following table of the electric pushrod rigid support Face is equipped with camera.The camera communication is transferred to host computer and shows real-time pictures by display, can be to alum in quiet heavy cover Flower carries out the observation of alumen ustum state.
Further, the quiet heavy cover upper surface of the movement offers gas vent, guarantees sampling integrality when quiet heavy sampling And water surface stability.
Alternatively, it is provided with sliding slot on the fixed bracket, support frame is entrenched in support bracket fastened sliding slot, support frame It can be moved on fixed bracket by power-equipment such as motor driven.
Further, the quiet heavy cover of the movement can be made of clear material, and mobile quiet heavy cover outer surface is equipped with detachably Shell.Mobile quiet heavy cover can be made of transparent material such as PMMA or PC etc., convenient for seeing to sampling effect and alumen ustum situation It examines;Mobile quiet heavy cover appearance can be equipped with dismountable shell of hard, and mounting hole is opened up on shell and to move quiet heavy cover fixation On positioning guide rail.Preferably, if quiet heavy cover mounting bracket mobile at this time installs camera, camera can be passed through Sampling and analysis situation in quiet heavy cover are entirely moved in observation.
Further, it is offered on the chassis of the vertical support frame and moves the quiet heavy matched annular groove of cover size, it is described Accommodating sealing ring is provided in annular groove, can braced chassis and mobile quiet heavy cover cooperate after seal.Guarantee chassis and mobile quiet heavy cover No leakage after closure improves stable testing and accuracy.
Further, the fixed bracket two sides are arranged at intervals with the mounting portion for offering mounting hole, can pass through expanding screw Nail will penetrate the process pool pool wall monitored needed for fixed bracket is mounted on by mounting portion.
The invention also includes a kind of methods for assisting quiet heavy experimental provision to carry out quiet heavy experiment, include the following steps;
1) quiet heavy sampling moves back the heavy cover of sound and mobile quiet heavy cover in equipment initialization or upper primary detection end of run The chassis of mounting bracket is in closed state, after setting detection cycle arrives, issues control signal by background control system, mobile Quiet sink covers on rising under electric pushrod active force until completely disengaging detection water body, and delay moves back the heavy electric pushrod that covers on of sound and makees Firmly decline reaches detection water sample until contact with the chassis of the quiet heavy cover mounting bracket of movement and to form a seal cavity Displacement;
2) data acquisition, after the intracorporal water sample of chamber is isolated with detection water body, system timer function starting, according to preparatory The sampling time point of setting records the turbidity temperature of sample, forms the sample information of one with time correlation;Driving moves Sound sinks cover mounting bracket and emerges relative to the fixed upward uniform motion of bracket to the quiet heavy cover of movement, by artificial or take the photograph As head carries out the observation of alumen ustum;At the same time system by quiet heavy whole process data by Industrial Ethernet be transmitted to host computer into Row shows and is stored in database software;
3) data analysis and scheduling, man-machine interface and central control room upper computer produce real-time data curve figure and go through at the scene History data check curve graph;Compare current trend figure and the variation of history average tendency figure and slope difference, and is transferred to control room Background dispatching system, the room of being scheduled for adjust medicine consumption reference;Pass through the quiet sink device bottom deposition after measurement test period Thickness, the adjustment of process pool sludge discharging period can be instructed by calculating deposition amount.Drawing of Curve can be drawn automatically by the software of control system It completes, without manually taking point-rendering, fully achieves the automation of data acquisition and analysis.
Further, background control system is also equipped with manual detection mode and the monocycle is automatic in addition to automatic running pattern Forced service mode.
Due to taking above scheme, the invention has the benefit that compared with prior art, the present invention does not need to operate Personnel carry out field sampling, can realize that long-range control is implemented, and the automation of quiet heavy sampling is realized by backstage automatic program;This Invention sampling by mobile quiet heavy cover and chassis formed closed housing sampling amount is carried out it is quantitative and quiet heavy, not by peopleware and The influence of technical ability guarantees the stability and accuracy of sampling;The present invention passes through instrument and the manually turbidity to quiet heavy sample, temperature And deposition thickness parameter is acquired and can be transmitted in backstage and combines computer big data analysis, control room obtains data and matches It closes, while realizing precisely to add water medicament processed and reduce water producing cost and scientific guidance process pool spoil disposal and realize quiet heavy experiment Digitization and high efficiency.
Detailed description of the invention
Fig. 1 is the fixation support schematic diagram of embodiment;
Fig. 2 is the quiet heavy cover mounting bracket schematic diagram of the movement of embodiment;
Fig. 3 is the quiet heavy cover schematic diagram of the movement of embodiment;
Fig. 4 is the schematic diagram after the full-automatic quiet sink device assembling of embodiment.
Marked in the figure: 1 being fixed bracket, 2 being sliding slot, 3 be mounting portion, four be vertical support frame, 5 be chassis, 6 being electronic Push rod fix bracket, 7 be electric pushrod rigid support, 8 be positioning guide rail, 9 be electric pushrod lower end fixed groove, 10 be mobile Quiet heavy cover, 11 be positioning disk, 12 be mounting hole, 13 be alumen ustum observation panel, 14 be gas vent, 15 be reinforcing rib, 16 be push rod branch Frame mounting hole, 17 be electric pushrod, 18 be online transmissometer.
Specific embodiment
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics ?.
Embodiment 1
The technical solution for assisting quiet heavy experimental provision is described in detail by combining with attached drawing and implements feelings for the present embodiment Condition.
It is as shown in Figure 1 fixed bracket 1, fixed mid-stent offers the sliding slot 2 of perforation, fixed 1 two sides of bracket welding There is the mounting portion 3 with mounting hole, fixed bracket 1 can be mounted on to the pool wall of process pool by swell fixture.
It is illustrated in figure 2 mobile quiet heavy cover mounting bracket, the quiet heavy hood pedestal of movement includes vertical support frame 4, The fixed bracket 6 of electric pushrod is installed in the 4 lower end installation chassis 5 of vertical support frame, upper end, and the firm branch of electric pushrod is installed at middle part Frame 7;Four positioning guide rails 8 are installed, in the electric pushrod rigid support 6 between the chassis 5 and electric pushrod rigid support 6 Offer electric pushrod lower end fixed groove 9;
It is illustrated in figure 3 mobile quiet heavy cover 10, the quiet heavy cover 10 of movement is cylindric in obforms, the quiet heavy cover 10 of movement Lower openings, the covering on top of mobile quiet heavy cover 10 and bottom are respectively provided with positioning disk 11, each reserved on upper and lower positioning disk 11 Four apertures are corresponding with 8 position of positioning guide rail, and movement 10 upper surfaces of quiet heavy cover are used by offering reserving installation hole 12 In being equipped with transmissometer and thermometer, mounting hole 12 can be only designed in the present embodiment, and selection exists with temp probe Line transmissometer (not shown), mobile 10 surfaces of quiet heavy cover also set up alumen ustum observation panel 13 and gas vent 14.The alumen ustum is seen Examining mouth 13 can be to be arranged transparent window in the side of mobile quiet heavy cover, this transparent window also acts as deposition measurement and sees It examines.The mountable reinforcing rib 15 in upper surface of the quiet heavy cover 10 of the movement, setting pusher bar support mounting hole 16 is used on reinforcing rib 15 Electric pushrod is installed.
As shown in figure 4, the assembling mode of the quiet heavy experimental provision of auxiliary is as follows, the vertical branch of mobile quiet heavy hood pedestal Support 4 is entrenched in the sliding slot 2 of fixed bracket 1, and vertical support frame 4 can be driven by motor to be moved on fixed bracket 1;The shifting The heavy cover 10 of sound is mounted on the positioning guide rail 8 in vertical support frame 4 by positioning disk 11, and online transmissometer 18 is mounted on shifting In the upper surface mounting hole of the heavy cover 10 of sound, the top of the quiet heavy cover 10 of movement is equipped with electric pushrod 17, electric pushrod 17 Middle and lower part be fastened in electric pushrod lower end fixed groove 9, the fixed bracket 6 of 17 other end of electric pushrod and electric pushrod connects It connects, electric pushrod 17 can be driven to make to move quiet heavy cover 10 and moved up and down on positioning guide rail 8.Background control system includes that detection is existing The man-machine interface of field, Central Control Room are the PLC group of host computer and the control elevating mechanism and electric pushrod that connect with host computer Part is connected between each system, man-machine interface and host computer by Industrial Ethernet.The motor and electric pushrod 17 are by PLC group Part control, while Ethernet passes the control of elevating mechanism motor and push-rod electric machine, online transmissometer data, camera picture It is handed to man-machine interface and realizes that teledata is visible, equipment is controllable, picture is as it can be seen that automatic data collection, record with host computer.
In a preferred scheme, the lower surface of the electric pushrod rigid support 7 is equipped with camera (not shown). The camera communication link is connected to the display of control system, can be directed at the observation that alumen ustum observation panel carries out alumen ustum state.
In a preferred scheme, offers on the chassis 5 and (do not show with the mobile quiet heavy cover matched annular groove of 10 sizes Out), be provided with accommodating sealing ring in the annular groove, can braced chassis and mobile quiet heavy cover cooperate after seal.
In a preferred scheme, the quiet heavy cover 10 of movement can be made of transparent material PMMA, convenient for imitating to sampling The observation of fruit, alumen ustum situation and deposition measurement.
Quiet heavy experiment is carried out using the quiet heavy experimental provision of above-mentioned auxiliary, is included the following steps;
1) quiet heavy sampling moves back the heavy cover 10 of sound and mobile quiet heavy cover in equipment initialization or upper primary detection end of run The chassis 5 of body mounting bracket is in closed state, such as setting is spaced 4 hours for a detection cycle, by background control system PLC component issue control signal, mobile quiet heavy cover under electric pushrod active force rises until completely disengage detection water body, prolongs The heavy cover 10 of Shi Houyi sound declines under 17 active force of electric pushrod until contacting with the chassis 5 of the quiet heavy cover mounting bracket of movement Form the displacement that a seal cavity reaches detection water sample;
2) data acquisition, after the intracorporal water sample of chamber is isolated with detection water body, system timer function starting, according to preparatory The sampling time point of setting records the turbidity temperature of sample, forms the sample information of one with time correlation;When sampling Between be selected as the intracorporal water sample of chamber with detect water body be isolated after 0min, 5min, 10min, 15min water sample data;Driving moves Sound sinks cover mounting bracket and emerges relative to the fixed upward uniform motion of bracket to the quiet heavy cover of movement, by artificial or take the photograph As head carries out the observation of alumen ustum;At the same time system by quiet heavy whole process data by Industrial Ethernet be transmitted to host computer into Row shows and is stored in database software;
3) data analysis and scheduling, man-machine interface and central control room upper computer produce real-time data curve figure and go through at the scene History data check curve graph;Compare current trend figure and the variation of history average tendency figure and slope difference, and is transferred to control room Rsv background dispatching system, the room of being scheduled for adjust medicine consumption reference;Pass through the quiet sink device bottom product after measurement test period Mud thickness, the adjustment of process pool sludge discharging period can be instructed by calculating deposition amount.Drawing of Curve can be drawn automatically by the software of control system System is completed, and without manually taking point-rendering, fully achieves the automation of data acquisition and analysis.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed New feature or any new combination, and disclose any new method or process the step of or any new combination.

Claims (10)

1. a kind of full-automatic quiet sink device, it is characterised in that: fixation bracket, mobile quiet heavy cover including being mounted on process pool pool wall Body mounting bracket and mobile quiet heavy cover;The quiet heavy hood pedestal of movement includes vertical support frame, and support frame passes through elevating mechanism Being fixed on fixed bracket can move up and down on fixed bracket;Vertical support frame lower end installation chassis is equipped on chassis The fixed bracket of electric pushrod is installed in several positioning guide rails, vertical support frame upper end;The quiet heavy cover of movement is cylindric in obforms, leads to It crosses positioning guide rail to be mounted in vertical support frame, mobile quiet heavy cover bottom opening, bottom can be formed with the chassis of vertical support frame Closed housing, barrel top are equipped with electric pushrod, and the electric pushrod other end is connect with the fixed bracket of electric pushrod, can drive electricity Dynamic push rod makes to move quiet heavy cover on positioning guide rail and moves up and down;The quiet heavy cover upper surface of movement is by opening up mounting hole installation There are transmissometer and thermometer, mobile quiet heavy cover surface setting alumen ustum observation panel and deposition measure observation panel;The elevating mechanism with Electric pushrod is connect with background control system signal.
2. full-automatic quiet sink device according to claim 1, it is characterised in that: the quiet heavy cover mounting bracket of movement On, electric pushrod rigid support is installed between chassis and the fixed bracket of electric pushrod;It is opened in the electric pushrod rigid support Equipped with electric pushrod lower end fixed groove, electric pushrod can be fastened in the fixed groove of electric pushrod lower end;The chassis and electricity Four positioning guide rails are installed between dynamic push rod rigid support, the top and bottom of the quiet heavy cover of movement is respectively provided with positioning disk, on Each reserved four apertures are corresponding with positioning guide rail position on lower positioning disk, are mounted on positioning guide rail convenient for that will move quiet heavy cover On;The mountable reinforcing rib in the quiet heavy cover upper surface of movement, setting pusher bar support mounting hole is for installing electronic push away on reinforcing rib Bar.
3. full-automatic quiet sink device according to claim 1, it is characterised in that: the quiet heavy cover upper surface of movement offers Gas vent.
4. full-automatic quiet sink device according to claim 1, it is characterised in that: it is provided with sliding slot on the fixed bracket, Support frame is entrenched in support bracket fastened sliding slot, and support frame can be driven by power-equipment and be moved on fixed bracket.
5. full-automatic quiet sink device according to claim 1, it is characterised in that: the quiet heavy cover of movement can be by transparent material It is made, mobile quiet heavy cover outer surface is equipped with dismountable shell.
6. full-automatic quiet sink device according to claim 2, it is characterised in that: the following table of the electric pushrod rigid support Face is equipped with camera.
7. full-automatic quiet sink device according to claim 2, it is characterised in that: opened up on the chassis of the vertical support frame Have with the mobile quiet heavy matched annular groove of cover size, be provided with accommodating sealing ring in the annular groove, can braced chassis and mobile quiet heavy It is sealed after cover cooperation.
8. full-automatic quiet sink device according to claim 1-7, it is characterised in that: between the fixed bracket two sides Every being provided with the mounting portion for offering mounting hole, mounting portion can will be penetrated by swell fixture by fixed bracket and is mounted on required prison The process pool pool wall of survey.
9. a kind of method that the full-automatic quiet sink device using claim 1-8 carries out water sample detection, which is characterized in that including with Lower step;
1) quiet heavy sampling moves back the heavy cover of sound in equipment initialization or upper primary detection end of run and installs with mobile quiet heavy cover The chassis of bracket is in closed state, after setting detection cycle arrives, issues control signal by background control system, mobile quiet heavy It covers under electric pushrod active force and rises until completely disengage detection water body, delay moves back that sound is heavy to cover on electric pushrod active force Decline with the chassis of the quiet heavy cover mounting bracket of movement until contact to form the displacement that a seal cavity reaches detection water sample;
2) data acquisition, after the intracorporal water sample of chamber is isolated with detection water body, the starting of background control system timer function, according to Preset sampling time point records the turbidity temperature of sample, forms the sample information of one with time correlation;It drives Dynamic mobile quiet heavy cover mounting bracket emerges relative to the fixed upward uniform motion of bracket to the quiet heavy cover of movement, by artificial Or camera carries out the observation of alumen ustum;Quiet heavy whole process data are transmitted to upper by system by Industrial Ethernet at the same time Machine is shown and is stored in database software;
3) data analysis and scheduling, man-machine interface and central control room upper computer produce real-time data curve figure and history number at the scene It is investigated that seeing curve graph;Compare current trend figure and the variation of history average tendency figure and slope difference, and after being transferred to control room Platform dispatches system, and the room of being scheduled for adjusts medicine consumption reference;By measurement test period after quiet sink device bottom deposition thickness, The adjustment of process pool sludge discharging period can be instructed by calculating deposition amount.
10. the method for quiet heavy experiment according to claim 9, it is characterised in that: background control system removes automatic running mould Outside formula, it is also equipped with manual detection mode and monocycle automatic forced operational mode.
CN201910649758.0A 2019-07-18 2019-07-18 A kind of automatically quiet sink device and detection method Pending CN110286070A (en)

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CN113960279A (en) * 2021-11-16 2022-01-21 江苏捷达离心机制造有限公司 Alum flower centrifugal detection device
CN113960279B (en) * 2021-11-16 2024-04-19 江苏捷达离心机制造有限公司 Alum flower centrifugal detection device
CN114367133A (en) * 2022-01-18 2022-04-19 大连华立金港药业有限公司 Sedimentation time control system for preparing Jingling oral liquid
CN116793751A (en) * 2023-08-21 2023-09-22 山西农业大学 Improved mud sampler
CN116793751B (en) * 2023-08-21 2023-11-14 山西农业大学 Improved mud sampler

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