CN108107829A - Intelligent filter cell rinse control system - Google Patents
Intelligent filter cell rinse control system Download PDFInfo
- Publication number
- CN108107829A CN108107829A CN201711386877.9A CN201711386877A CN108107829A CN 108107829 A CN108107829 A CN 108107829A CN 201711386877 A CN201711386877 A CN 201711386877A CN 108107829 A CN108107829 A CN 108107829A
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- China
- Prior art keywords
- valve
- plc controller
- filter
- filter tank
- unit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/11—Plc I-O input output
- G05B2219/1103—Special, intelligent I-O processor, also plc can only access via processor
Abstract
The invention discloses a kind of intelligent filter cell rinse control systems, detection unit, human-machine interface unit and execution unit including PLC controller and connection PLC controller, PLC controller monitor system, alarm unit and the first operating unit by human-machine interface unit connection procedure；Detection unit is for the liquid level numerical value in detection filter tank and/or pressure value in real time and is sent to PLC controller；Generation analysis data and control instruction are analyzed and compared to the detection data that PLC controller receives filter tank；Execution unit receives the control instruction driving flush water pump of PLC controller and/or suction pump carries out filter cell rinse.Fully automated detection filter clogging situation can be achieved in the case where prosthetic operates, and filter back washing is operated in time according to filtrate situation, substantially increase its accuracy to the detection of filtrate material condition and the promptness to filter back washing.
Description
Technical field
The present invention relates to filter tank intelligent control technology field more particularly to a kind of intelligent filter cell rinses of filter back washing
Control system.
Background technology
The purpose that filter tank is used in wastewater treatment is the fine suspension matter removed in waste water, particularly removes biochemical treatment
And some tiny suspended particulates and colloidal substance that coagulating sedimentation cannot remove.So filtrate itself can adsorb a large amount of in use
Impurity if cleared up not in time for this partial impurities, can not only reduce filter effect or even can result in blockage, so that go out
Water is not smooth.Therefore it is one of necessary process for ensureing production that flushing is timed to filtrate, leans on human hand to the flushing of filtrate in the past
Dynamic operation, human cost height and inefficiency.
At present, most filter back washing process needs to carry out the cleaning of impurity by the water of certain pressure, causes use
The secondary pollution and waste of water.And have and control box by machine, the behaviour of all devices of backwash are all not provided in most filter tanks
Work will be completed by Central Control Room, can not complete operation by machine；And backwash can only be operated on host computer, entire mistake
Cheng Wufa reproduces the state and effect of observation backwash while field is operated.
The content of the invention
In order to overcome the above-mentioned deficiency of the prior art, the present invention provides a kind of intelligent filter cell rinse control systems.Mainly
Filter tank automatic backwash is realized using detection technique and PLC technology, it, not only can be with by being rinsed to filtrate using automation control
Manpower is saved, water quality and production efficiency can also be greatly improved.
In order to achieve the above object, the present invention provides following technical solutions：
1. intelligent filter cell rinse control system, which is characterized in that the detection including PLC controller and connection PLC controllers
Unit, human-machine interface unit and execution unit, PLC controller monitor system, alarm list by human-machine interface unit connection procedure
Member and the first operating unit；
The detection unit is for the liquid level numerical value in detection filter tank and/or pressure value in real time and is sent to PLC controller；
Generation analysis data and control instruction are analyzed and compared to the detection data that the PLC controller receives filter tank；
The execution unit receives the control instruction driving flush water pump of PLC controller and/or suction pump carries out filter tank punching
It washes；
The process monitoring system is used to carry out the real-time monitoring of filter tank state according to filter tank real-time detector data；
The alarm unit is used to carry out onsite alarming and remote alarms according to filter tank real-time detector data；
First operating unit carries out data query and control operation for user.
Wherein, the filter tank is provided with partition plate in filter material layer lower, transverse, and the partition plate both sides are provided with membrane support plate
For the fixed support of triangle；Described membrane support plate one end is fixedly connected with partition plate, and the other end is connected to filter tank by pulley
Side wall；Execution unit drives membrane support plate to move up and down by partition plate driving mechanism.
The PLC controller connects an at least personal-machine interface unit by interchanger.
The PLC controller is also connected with the second operating unit, and the second operating unit is operated manually control for scene.
The detection unit includes liquid level gauge and/or pressure sensor, and the liquid level gauge is used to detect liquid level in filter tank, institute
Pressure sensor is stated for detecting the pressure of filter material layer in filter tank.
The execution unit further includes eight pneumatic on-off valves and a pneumatic control valve；The pneumatic on-off valve includes water inlet
Valve, outlet valve, drain valve, washing valve, air purge valve, intake valve and/or residual air valve；The pneumatic control valve for control clear water into
Water.
The flush water pump and suction pump are connected with filter tank by pipeline, are set on the pipeline between flush water pump and filter tank
It is equipped with washing valve；Air purge valve is provided on pipeline between suction pump and filter tank；
The bottom in filter tank is communicated with inlet pipeline, and inlet valve is provided on inlet pipeline；The bottom in filter tank is communicated with row
Water lines are provided with drain valve on discharge pipe line；Air inlet pipeline is communicated in the bottom in the filter tank, is set on air inlet pipeline
It is equipped with intake valve.
The PLC controller is provided with signal detection sampling unit, and the signal detection sampling unit is distinguished by circuit
Connect flush water pump, suction pump, liquid level gauge, pressure sensor, inlet valve, drain valve and air bleeding valve.
Compared with prior art, intelligent filter cell rinse control system provided by the invention, has following
Advantageous effect：
1) intelligent filter cell rinse control system sensor detecting and PLC logic control skills provided by the invention
Fully automated detection filter clogging situation can be achieved in the case where prosthetic operates for art, and right in time according to filtrate situation
Filter back washing operates, and substantially increases its accuracy to the detection of filtrate material condition and the promptness to filter back washing, goes forward side by side
One step improves the flushing effect to filter tank.It realizes saving manpower and the normal operation for filter tank provides most strong guarantor
Barrier.
2) intelligent filter cell rinse control system provided by the invention by the way of dust suction to the impurity of filter tank inner filtering layer into
Row is absorbed, and greatly reduces water consumption and the secondary pollution to water.
3) intelligent filter cell rinse control system provided by the invention is moved up and down by partition plate support plate, change storage area and
Pressure difference between rinsing area, beneficial to larger bubble is formed in air purge or air-water mixture, beneficial to filter material layer
Squeezing action, beneficial to flushing effect is improved, global design is reasonable, of simple structure and strong practicability.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structure diagram of the intelligent filter cell rinse control system of the embodiment of the present invention；
Fig. 2 is some mechanical schematic diagram of the intelligent filter cell rinse device of the embodiment of the present invention；
Fig. 3 is the flow diagram of the intelligent filter cell rinse control system of the embodiment of the present invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can configure to arrange and design with a variety of.Therefore, below to provide in the accompanying drawings the present invention reality
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, belongs to the scope of protection of the invention.
In the description of the present invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or one
It connects body；Can be mechanical connection or electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected, can is the connection inside two elements.For the ordinary skill in the art, can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.In addition, term " first ", " second ", " the 3rd " are only used for description purpose, and
It is not intended that instruction or hint relative importance.
In addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field
Logical technical staff can be implemented as basis, will be understood that when the combination appearance of technical solution is conflicting or can not realize this
The combination of technical solution is not present, also not the present invention claims protection domain within.
The present invention is further described with exemplary embodiment below in conjunction with the accompanying drawings, wherein if it is known that technology it is detailed
Thin description is for showing the invention is characterized in that unnecessary, then to omit it.
Fig. 1 is the structure diagram of the intelligent filter cell rinse control system of the embodiment of the present invention.Intelligent filter cell rinse control
System includes PLC controller 10 and connects detection unit 20, human-machine interface unit 30 and the execution unit 40 of PLC controller 10,
PLC controller 10 monitors system 31,33 and first operating unit 32 of alarm unit by 30 connection procedure of human-machine interface unit.
Detection unit 20 is for the liquid level numerical value in detection filter tank and/or pressure value in real time and is sent to PLC controller
10；Generation analysis data and control instruction are analyzed and compared to the detection data that PLC controller 10 receives filter tank；Execution unit
40 receive the control instruction driving flush water pump 43 of PLC controller 10 and/or the progress filter cell rinse dust suction of suction pump 42；Process is supervised
Examining system 31 is used to carry out the real-time monitoring of filter tank state according to filter tank real-time detector data；Alarm unit 33 is used for according to filter tank
Real-time detector data carries out onsite alarming and remote alarms；First operating unit 32 carries out data query and control behaviour for user
Make.
As another embodiment, PLC controller 10 can connect an at least personal-machine interface unit 30 by interchanger.
Preferably, PLC controller 10 is also connected with the second operating unit, the second operating unit for scene into
Row manual operation control.
The pneumatic operated valve 41 of execution unit connection further includes eight pneumatic on-off valves and a pneumatic control valve；Pneumatic on-off valve bag
Include inlet valve, outlet valve, drain valve, washing valve, air purge valve, intake valve and/or residual air valve；Pneumatic control valve is clear for controlling
Water is intake.
Fig. 2 is some mechanical schematic diagram of the intelligent filter cell rinse device of the embodiment of the present invention.Flush water pump 43 and suction
Pump 42 is connected with filter tank 100 by pipeline, and washing valve is provided on the pipeline between flush water pump 43 and filter tank 100；It is inhaling
Air purge valve 411 is provided on pipeline between power pump 42 and filter tank；Inlet pipeline is communicated at the top of filter tank, in inlet pipeline
On be provided with inlet valve；The bottom in filter tank 100 is communicated with discharge pipe line, and drain valve 414 is provided on discharge pipe line；It is filtering
The bottom in pond is communicated with air inlet pipeline, and intake valve 412 is provided on air inlet pipeline.
PLC controller 10 is provided with signal detection sampling unit, and signal detection sampling unit connects punching by circuit respectively
Wash water pump, suction pump, liquid level gauge, pressure sensor, inlet valve, drain valve and intake valve.PLC controller 10 is additionally provided with wirelessly
Communication module, PLC controller can remotely connect wireless terminal and carry out data transmission and carry out remote control.
Specifically, filter tank 100 is provided with the storage area and lower part that partition plate 101 forms top in filter material layer 11 lower, transverse
Rinsing area；Fixed support of the membrane support plate 102 for triangle is provided in 101 both sides of partition plate；102 one end of membrane support plate
Partition plate 101 is fixedly connected with, the other end is connected to 100 side wall of filter tank by pulley 1021；Execution unit 40 passes through partition plate driving machine
Structure 44 drives membrane support plate 1021 to move up and down.
Detection unit 20 includes liquid level gauge 21 and/or pressure sensor 22, and liquid level gauge 21 is used to detect liquid in filter tank 100
Position, pressure sensor 22 are used to detect pressure of the filter material layer about 11 in filter tank.
When the difference of the pressure detected between storage area and rinsing area is more than setting value partition plate driving mechanism 44 drive every
Plate support plate 102 moves up, and when partition plate support plate 102 moves up, the pressure difference between storage area and rinsing area becomes smaller, and is beneficial to
Larger bubble is formed in air purge or air-water mixture, beneficial to the squeezing action to filter material layer 11, is rinsed beneficial to improving
Effect.Global design is reasonable, of simple structure and strong practicability.
Data can be detected according to liquid level gauge 21 to determine whether storage area carries out water discharge, pressure sensor 22 during backwash
Detectable pressure between storage area and rinsing area avoids pressure difference therebetween excessive.
Fig. 3 is the flow diagram of the intelligent filter cell rinse control system of the embodiment of the present invention.
Patent of the present invention is designed to provide a kind of intelligent filter controlling based on PLC technology and instrument detection technique
System, it can realize the automatic backwash to filter tank.The acquisition liquid level in filter tank and filtering layer number pressure are detected by detecting system
Value, by compared with threshold value, drawing whether to be backwashed to filter tank.PLC controller is by priority logic output letter
Number control flush water pump, suction pump and pneumatic operated valve realize filter tank automatic backwash and cleaning operation.
Liquid level gauge and pressure sensor are transported to PLC controller by 4mA-20mA analog signals are measured；Pass through liquid level gauge pair
The liquid level difference of the real time on-line monitoring value unit of account time of filter tank liquid level, can when this difference is higher than a certain threshold value
Judge that filter clogging need to perform filter back washing action；On the other hand can be detected simultaneously according to filtering layer pressure measurement data, when
When filtering layer base pressure is more than a certain value (relatively large air pressure), filter clogging also can determine that, need to perform filter back washing action.
PLC controller 10 can realize input/output function, collection in worksite signal be inputted and conversion process, while right
Field control signal is exported and conversion process；Can also be achieved communication function, by network communication realize PLC master station with it is upper
Data in PLC controller are transmitted to man-machine interface and are intuitively shown by the data exchange of machine, and the first operating unit is inputted
Operation signal be sent to PLC controllers and carry out control calculating；It finally can also be achieved and the data for being transmitted to PLC controller carried out
Calculate store function.
The intelligent filter cell rinse control system of the present invention has manual backwashing control and automatic backwash control mode.Hand
Dynamic model formula realizes backwash by the first operating unit on the spot or man-machine interface pushbutton start and stop pump, wind turbine, valve；Automatic mode
Under, filter tank is periodically backwashed by PLC controller, backwashing period time initial value can be by operator or default, this
Automatic control system has self adapting and study model, can be to later stage period time value Automatic Optimal, with the recoil being optimal
Wash effect.
Specifically, PLC controller of the present invention is made of AB Compact type PLC1769 series, ABPLC performances stabilization can
It leans on, processing speed is fast, powerful, and networking capability is also quite strong.Entire control system includes at least one PLC master station.PLC master
Stand the CPU (model 1769-L32E, built-in ControlNet PORT COMs) including a CompactLogix controller, one
Stand module and power module (model 1769-BA).PLC controller mainly complete pair signals input and output processing, logic meter
The operations such as calculation and Communication processing.Digital input module model 1769-IQ32, digital output module model 1769OB32, mould
Intend input model 1769-IF4, analog output module model 1769-OF2, so as to complete the input to Site Detection signal
Acquisition and the output to exporting signal.Human-machine interface unit is made of Liang Tai Hewlett-Packards industrial personal computer, what main displaying scene detected
Level value, filtrate pressure value and valve position value and the manual operation interface as operating personnel.Between industrial personal computer and PLC
With ethernet communication protocol realization data interchange.
These are only present pre-ferred embodiments, be not used to limitation the present invention, it is all the spirit and principles in the present invention it
Interior done modifications, equivalent substitutions and improvements etc., are required to be included within protection scope of the present invention.
Claims (8)
1. intelligent filter cell rinse control system, which is characterized in that the detection unit including PLC controller and connection PLC controller,
Human-machine interface unit and execution unit, PLC controller monitor system, alarm unit and the by human-machine interface unit connection procedure
One operating unit；
The detection unit is for the liquid level numerical value in detection filter tank and/or pressure value in real time and is sent to PLC controller；
Generation analysis data and control instruction are analyzed and compared to the detection data that the PLC controller receives filter tank；
The execution unit receives the control instruction driving flush water pump of PLC controller and/or suction pump carries out filter cell rinse；
The process monitoring system is used to carry out the real-time monitoring of filter tank state according to filter tank real-time detector data；
The alarm unit is used to carry out onsite alarming and remote alarms according to filter tank real-time detector data；
First operating unit carries out data query and control operation for user.
2. intelligence filter cell rinse control system according to claim 1, which is characterized in that the filter tank is in filter material layer lower part
Partition plate is horizontally arranged with, the partition plate both sides are provided with fixed support of the membrane support plate for triangle；The membrane support
Plate one end is fixedly connected with partition plate, and the other end is connected to filter tank side wall by pulley；Execution unit is driven by partition plate driving mechanism
Membrane support plate moves up and down.
3. intelligence filter cell rinse control system according to claim 1, which is characterized in that the PLC controller passes through friendship
It changes planes and connects an at least personal-machine interface unit.
4. intelligence filter cell rinse control system according to claim 1, which is characterized in that the PLC controller is also connected with
Second operating unit, the second operating unit are operated manually control for scene.
5. intelligence filter cell rinse control system according to claim 1, which is characterized in that the detection unit includes liquid level
Meter and/or pressure sensor, the liquid level gauge for detecting liquid level in filter tank, for detecting in filter tank filter by the pressure sensor
The pressure of the bed of material.
6. intelligence filter cell rinse control system according to claim 1, which is characterized in that the execution unit further includes eight
Pneumatic on-off valve and a pneumatic control valve；The pneumatic on-off valve includes inlet valve, outlet valve, drain valve, washing valve, air purge
Valve, intake valve and/or residual air valve；The pneumatic control valve is used to that clear water to be controlled to intake.
7. intelligence filter cell rinse control system according to claim 1, which is characterized in that the flush water pump and suction pump
It is connected with filter tank by pipeline, washing valve is provided on the pipeline between flush water pump and filter tank；Suction pump and filter tank it
Between pipeline on be provided with air purge valve；
The bottom in filter tank is communicated with inlet pipeline, and inlet valve is provided on inlet pipeline；The bottom in filter tank is communicated with drainpipe
Road is provided with drain valve on discharge pipe line；Air inlet pipeline is communicated in the bottom in the filter tank, is provided on air inlet pipeline
Intake valve.
8. intelligence filter cell rinse control system according to claim 7, which is characterized in that the PLC controller is provided with
Signal detection sampling unit, the signal detection sampling unit connected respectively by circuit flush water pump, suction pump, liquid level gauge,
Pressure sensor, inlet valve, drain valve and air bleeding valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711386877.9A CN108107829A (en) | 2017-12-20 | 2017-12-20 | Intelligent filter cell rinse control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711386877.9A CN108107829A (en) | 2017-12-20 | 2017-12-20 | Intelligent filter cell rinse control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108107829A true CN108107829A (en) | 2018-06-01 |
Family
ID=62210614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711386877.9A Pending CN108107829A (en) | 2017-12-20 | 2017-12-20 | Intelligent filter cell rinse control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108107829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156882A (en) * | 2021-04-15 | 2021-07-23 | 北京首农畜牧发展有限公司 | Automatic sewage back flushing control device and method based on PLC control |
| CN115105874A (en) * | 2022-06-29 | 2022-09-27 | 岳阳市水务集团有限公司 | Intelligent optimization system of siphon filter tank |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090250385A1 (en) * | 2008-04-02 | 2009-10-08 | Eitan Sharir | Apparatus for waste-water filtration |
| CN101670194A (en) * | 2008-09-10 | 2010-03-17 | 深圳市兰科环境技术有限公司 | Fully-automatic oily sewage filtration-type separator and separating system |
| CN203620321U (en) * | 2013-10-25 | 2014-06-04 | 中冶华天南京自动化工程有限公司 | Automatic filter tank backwashing device |
| CN204619460U (en) * | 2015-05-21 | 2015-09-09 | 福建亿兆自动化设备有限公司 | A kind of filter controlling device |
| CN204637689U (en) * | 2015-04-23 | 2015-09-16 | 浙江警安科技有限公司 | Filter back washing control system |
| CN205635042U (en) * | 2016-05-19 | 2016-10-12 | 广州市振达工程设备有限公司 | Suspension fluidized bed bological aerated filter |
| CN206138808U (en) * | 2016-08-30 | 2017-05-03 | 西安全方科技发展有限责任公司 | Sand filter automatic control device of water treatment plant |
-
2017
- 2017-12-20 CN CN201711386877.9A patent/CN108107829A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090250385A1 (en) * | 2008-04-02 | 2009-10-08 | Eitan Sharir | Apparatus for waste-water filtration |
| CN101670194A (en) * | 2008-09-10 | 2010-03-17 | 深圳市兰科环境技术有限公司 | Fully-automatic oily sewage filtration-type separator and separating system |
| CN203620321U (en) * | 2013-10-25 | 2014-06-04 | 中冶华天南京自动化工程有限公司 | Automatic filter tank backwashing device |
| CN204637689U (en) * | 2015-04-23 | 2015-09-16 | 浙江警安科技有限公司 | Filter back washing control system |
| CN204619460U (en) * | 2015-05-21 | 2015-09-09 | 福建亿兆自动化设备有限公司 | A kind of filter controlling device |
| CN205635042U (en) * | 2016-05-19 | 2016-10-12 | 广州市振达工程设备有限公司 | Suspension fluidized bed bological aerated filter |
| CN206138808U (en) * | 2016-08-30 | 2017-05-03 | 西安全方科技发展有限责任公司 | Sand filter automatic control device of water treatment plant |
Non-Patent Citations (2)
| Title |
|---|
| 杨士发: "《供水自动化与仪表》", 30 June 2014 * |
| 陈乃林: "《水电》", 30 June 1993 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156882A (en) * | 2021-04-15 | 2021-07-23 | 北京首农畜牧发展有限公司 | Automatic sewage back flushing control device and method based on PLC control |
| CN115105874A (en) * | 2022-06-29 | 2022-09-27 | 岳阳市水务集团有限公司 | Intelligent optimization system of siphon filter tank |
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Application publication date: 20180601 |