CN106017636A - Calcium carbide raw material accurate batching control system and method - Google Patents
Calcium carbide raw material accurate batching control system and method Download PDFInfo
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- CN106017636A CN106017636A CN201610523224.XA CN201610523224A CN106017636A CN 106017636 A CN106017636 A CN 106017636A CN 201610523224 A CN201610523224 A CN 201610523224A CN 106017636 A CN106017636 A CN 106017636A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
- G01G19/38—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them programme controlled, e.g. by perforated tape
- G01G19/384—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them programme controlled, e.g. by perforated tape involving comparison with a reference value
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Abstract
The invention discloses a calcium carbide raw material accurate batching control system. The system comprises an HMI, a PLC, a control instrument, a spiral decrement scale, a hand-operated gate valve and an electric gate valve, wherein the HMI is used for distributing a ratio of a mixture of each batch and a per-hour batching total amount parameter to the PLC by a user according to demands; the PLC is used for, according to the ratio and the batching total amount parameter distributed by the HMI, calculating a set flow of each row material for transmitting to the control instrument; the control instrument is used for, according to a raw material actual weight returned by the spiral decrement scale, calculating an actual flow per hour through an internal PID, calculating a difference between the actual flow per hour and the set flow, and according to the difference, adjusting a raw material conveying speed of the spiral decrement scale; the spiral decrement scale is used for feeding according to control of the control instrument, weighing an existing actual raw material and sending the raw material actual weight to the control instrument; and the hand-operated gate valve and the electric gate valve are respectively connected with the spiral decrement scale and the control instrument. According to the invention, requirements for product quality and large-scale production can be satisfied.
Description
Technical field
The present invention relates to carbide field of smelting, particularly relate to a kind of carbide raw material accurate dosing control system and method.
Background technology
Technology
It is the necessary substantial amounts of raw material of processed that electric furnace produces the feature of carbide, and the indices of raw material is stable, is first
Stablizing of its chemical composition and granularmetric composition, it is ensured that smelting system is stable, so that raw material and electric power resource are able to effective profit
With.The quality that raw material prepares, has the biggest impact to the working of a furnace.Such as, during carbide is smelted, whether the reducing agent amount of allocating into closes
Suitable, various proportioning raw materials are the most stably considerable.This is not only decided by uniformity and the feed way that dispensing mixes,
The more important thing is the degree of accuracy being decided by the appropriate proportioning of raw material, weighing.Carbide be by semi-coke reduction proportioning improper,
Weighing precision is low, the region that reducing agent is too much or very few, being smoothed out of impact reduction can occurs, destroy electricity in stove
Flow distribution, causes in-furnace temperature uneven.So furnace charge is prepared quality and is only in carbide smelting process and plays a decisive role
, furnace charge is to utilize various equipment and burden balance composition.The basic demand of these equipment and feed proportioning system is continuously
The furnace charge of regulation proportioning is put in stove.It follows that the smelting of carbide is had by various raw materials through weighing, dispensing fed to boiler
Conclusive impact.
But at present in carbide raw material proportioning process, great majority are feeding devices being interrupted, and are interrupted the feed of operation
Equipment only has a regulation effect: i.e. feed change adds the speed of batch bin.The most this feeding device has following two kinds
Control mode selects.First: with changeless speed feeding, until reaching the once weighing value of regulation, be then turned off
Feeding device.Second: major part raw material maximal rate feed in once weighing, then feeding device is changed as low speed
Operating duty, until once weighing setting to close feeding device.Both control modes have the disadvantage in that i.e. dispensing
Error is big, production efficiency is low, it is impossible to meet the requirement of a large amount of feeding lot numbers needed for large-scale production, it is impossible to produce continuously.
Summary of the invention
Goal of the invention: the present invention is directed to the problem that prior art exists, it is provided that a kind of carbide raw material accurate dosing control system
And method, product quality and large-scale production requirement can be met, it is achieved produce continuously.
Technical scheme: carbide raw material accurate dosing control system of the present invention includes HMI (Human Machine
Interface, man machine interface), PLC (Programmable Logic Controller, programmable logic controller (PLC)), control
Instrument, spiral measuring balance, hand operated gate valve and electric gate valve；Wherein:
HMI issues the proportioning of each batch compound according to demand for user and dispensing total amount parameter is extremely per hour
PLC；
PLC connects HMI, calculates setting of each raw material for proportioning and the dispensing total amount parameter issued according to HMI
Constant flow, and it is sent to control instrument；
Control instrument connects PLC and spiral measuring balance, be inside provided with PID regulator, WIC (Weigh Indicate Control,
Weight display controller) and WIT (Weigh Indicate Transmit, weight display transmitter), for subtracting according to spiral
The raw material actual weight that amount scale returns, is calculated actual flow hourly by internal PID, and calculates actual flow
The difference setting flow that amount and PLC calculate, according to the feedstock transportation speed of difference adjustable screw measuring balance, it is achieved accurately
Dispensing；Control instrument is additionally operable to raw material actual weight and the weight upper limit value and lower limit value set in advance returned by spiral measuring balance
Compare and differentiate, when exceeding upper limit value and lower limit value, then controlling electric gate valve and close, stop feed, it is achieved to weighing
Feed it is interrupted in hopper；
Spiral measuring balance connects control instrument, for carrying out feed according to the control of control instrument, and to existing reality
Raw material is weighed, and sends raw material actual weight to control instrument；
Hand operated gate valve and electric gate valve connect measuring balance and control instrument respectively, when hand operated gate valve is opened, can enter
Row manual operation feed.
Further, described spiral measuring balance includes Weighing control hopper, converter and conveying worm, wherein:
Described Weighing control hopper is provided with LOAD CELLS, for the actual raw material in Weighing control material is weighed,
And raw material actual weight is sent to control instrument；
Described converter connects control instrument and conveying worm, for the output adjustable screw conveyer according to control instrument
Rotating speed, make raw material actual flow follow the tracks of in real time raw material set flow.
The control method based on above-mentioned carbide raw material accurate dosing control system that the present invention provides, including:
User issues the proportioning of each batch compound by HMI according to demand and dispensing total amount parameter is extremely per hour
PLC；
Proportioning that PLC issues according to HMI and dispensing total amount parameter calculate the setting flow of each raw material, and transmit
To control instrument；
Internal actual raw material is weighed by spiral measuring balance, and sends raw material actual weight to control instrument；
The raw material actual weight that control instrument returns according to spiral measuring balance, is calculated hourly by internal PID
Actual flow, and calculate the difference setting flow that actual flow calculates with PLC, according to difference adjustable screw measuring balance
Feedstock transportation speed, it is achieved accurate dosing；
The raw material actual weight that spiral measuring balance is returned by control instrument compares with weight upper limit value and lower limit value set in advance
And differentiation, when exceeding upper limit value and lower limit value, then control electric gate valve and close, stop feed, it is achieved in hopper of weighing
It is interrupted feed；
Spiral measuring balance carries out feed according to the control of control instrument；
When hand operated gate valve is opened, it is operated manually feed.
Further, internal actual raw material is weighed by described spiral measuring balance, and raw material actual weight is sent extremely
Control instrument, specifically includes:
Actual raw material in Weighing control hopper is weighed by described spiral measuring balance by arranging LOAD CELLS, and right
The actual raw material weight value of LOAD CELLS carries out component signal sampling, and sends the component signal of sampling to controller
Table.
Further, the raw material actual weight that described control instrument returns according to spiral measuring balance, counted by internal PID
Calculation obtains actual flow hourly, specifically includes:
Control instrument, by internal PID, according to the component signal of the raw material actual weight gathered, calculates component signal
In the change of per time instance as instantaneous delivery, it is transformed to actual flow hourly further according to instantaneous delivery.
Further, the described feedstock transportation speed according to difference adjustable screw measuring balance, specifically include:
Control instrument is according to the rotating speed of the conveying worm of difference adjustable screw measuring balance, and then regulation feedstock transportation speed,
Make raw material actual flow follow the tracks of raw material in real time and set flow.
Further, when electric gate valve opens feed in hopper of weighing, PLC is defeated by control instrument locking screw
The machine rotating speed of sending is set-point, until electric gate valve shutdown signal occurs again.
Further, user operates when opening/stop button on HMI, and batching control system opens/stops.
Further, startup and the stopping of batching control system uses along stopping the inverse control mode opened.
Further, described HMI transmits data by Ethernet with PLC.
Beneficial effect: compared with prior art, its remarkable advantage is the present invention:
1, Production requirement can be reached by the compound of this system, and system structure is simple, process control, solve
Exact requirements to various proportioning raw materials smelted by furnace of calcium carbide, one is set for for ensureing that product quality and production line have been worked continuously
With.
2, operation can be made in applying and produce to become very simple, reduce the work load of workman, be effectively improved product
Quality, reduces production cost.
3, have employed PLC control technology, extension is easily；Can be connected by Ethernet with furnace's control system,
Realize the computer management of whole system, and can be by the real-time performance centralized Control crossing feed proportioning system more.
3, use novel measuring balance, coordinate batching control software kit realize material transport, batching control, formula design,
The functions such as Product Data Management.
4, user carries out configuration, programming and data management under the HMI man-machine interface of its close friend, can be formed required
Operation screen, monitor picture, control interface, alarm screen, real-time tendency curve, historical text and printing report
Table etc..
5, provide for operative employee that both pictures and texts are excellent, visual in image operating environment, can easily with various softwares and use
Family program groups is combined together sets up friendly man machine interface, meets and is actually needed.
Accompanying drawing explanation
Fig. 1 is the system block diagram of an embodiment of the carbide raw material accurate dosing control system that the present invention provides；
Fig. 2 is that HMI operates interface；
Fig. 3 is HMI charger sheet.
Detailed description of the invention
As it is shown in figure 1, the carbide raw material accurate dosing control system of the present embodiment include HMI, PLC, control instrument,
Spiral measuring balance, hand operated gate valve and electric gate valve；Wherein: HMI issues each batch according to demand for user
The proportioning of compound and per hour dispensing total amount parameter are to PLC；PLC connects HMI, for according to joining that HMI issues
Ratio and dispensing total amount parameter calculate the setting flow of each raw material, and are sent to control instrument；Control instrument connects
PLC and spiral measuring balance, be inside provided with PID regulator, WIC (Weigh Indicate Control, weight display controller)
With WIT (Weigh Indicate Transmit, weight display transmitter), it is used for the raw material returned according to spiral measuring balance
Actual weight, is calculated actual flow hourly by internal PID, and calculates actual flow and PLC calculating
Set flow difference, according to the feedstock transportation speed of difference adjustable screw measuring balance, it is achieved accurate dosing；Controller
The raw material actual weight that table is additionally operable to spiral measuring balance returns compares with weight upper limit value and lower limit value set in advance and sentences
Not, when exceeding upper limit value and lower limit value, then control electric gate valve close, stop feed, it is achieved in hopper of weighing be interrupted to
Material；Spiral measuring balance connects control instrument, for carrying out feed according to the control of control instrument, and to existing reality
Raw material is weighed, and sends raw material actual weight to control instrument；Hand operated gate valve and electric gate valve connect respectively
Measuring balance and control instrument, when hand operated gate valve is opened, can be operated manually feed.
Wherein, spiral measuring balance includes Weighing control hopper, converter and conveying worm；Weighing control hopper is provided with
LOAD CELLS, for weighing the actual raw material in Weighing control material, and sends raw material actual weight to controlling
Instrument；Converter connects control instrument and conveying worm, for the output adjustable screw conveyer according to control instrument
Rotating speed, makes raw material actual flow follow the tracks of raw material in real time and sets flow.
The carbide raw material accurate dosing control method of the present embodiment is based on above-mentioned control system, and the method includes following step
Rapid:
S1, user issue proportioning and the dispensing total amount parameter per hour of each batch compound according to demand by HMI
To PLC.
Wherein, as shown in Figures 2 and 3, HMI is mainly used in the various parameter of user setup, it is also possible to grasp on HMI
Open/stop button, make batching control system open/stop.The startup of batching control system and stopping use along stopping the inverse control opened
Mode.Start, stop, opening, the instruction such as closedown is realized by PLC program software and control instrument firmware program, real
Strong by property.HMI can also carry out configuration, programming and data management, can be formed required operation screen, monitor picture,
Control interface, alarm screen, real-time tendency curve, historical text and printing reports etc..
Proportioning that S2, PLC issue according to HMI and dispensing total amount parameter calculate the setting flow of each raw material, and
It is sent to control instrument.
Wherein, HMI transmits data by Ethernet with PLC.
Internal actual raw material is weighed by S3, spiral measuring balance, and sends raw material actual weight to control instrument.
This step specifically includes: the actual raw material in Weighing control hopper is entered by spiral measuring balance by arranging LOAD CELLS
Row is weighed, and the actual raw material weight value of LOAD CELLS is carried out component signal sampling, and is sent out by the component signal of sampling
Deliver to control instrument.
The raw material actual weight that S4, control instrument return according to spiral measuring balance, is calculated the least by internal PID
Time actual flow, and calculate the difference setting flow that actual flow and PLC calculate, according to difference adjustable screw decrement
The feedstock transportation speed of scale, it is achieved accurate dosing.
Wherein, this step specifically includes: (1) control instrument by internal PID ((proportional-integral derivative controller),
According to the component signal of the raw material actual weight gathered, calculate the component signal change at per time instance as instantaneous stream
Amount, is transformed to actual flow hourly further according to instantaneous delivery.(2) the setting stream that actual flow calculates is calculated with PLC
The difference of amount. (3) are according to the rotating speed of the conveying worm of difference adjustable screw measuring balance, and then regulation feedstock transportation speed,
Make raw material actual flow follow the tracks of raw material in real time and set flow.Raw material actual weight is Real-time Collection, thus is calculated
Real-time actual flow, then regulates delivery rate in real time according to actual flow and setting flow, makes actual flow all the time
Meet setting flow exactly, thus realize accurate dosing.
The raw material actual weight that spiral measuring balance is returned by S5, control instrument is carried out with weight upper limit value and lower limit value set in advance
Compare and differentiate, when exceeding upper limit value and lower limit value, then controlling electric gate valve and close, stop feed, it is achieved to material of weighing
It is interrupted feed in bucket, when not less than upper limit value and lower limit value, then controls electric gate valve and open, continue feed.
Wherein, when electric gate valve opens feed in hopper of weighing, PLC passes through control instrument locking screw conveyer
Rotating speed is set-point, until electric gate valve shutdown signal occurs again.
S6, spiral measuring balance export according to the control of control instrument and carry out feed.
S7, when hand operated gate valve is opened, be operated manually feed.
Above disclosed only one preferred embodiment of the present invention, it is impossible to limit the right model of the present invention with this
Enclose, the equivalent variations therefore made according to the claims in the present invention, still belong to the scope that the present invention is contained.
Claims (10)
1. a carbide raw material accurate dosing control system, it is characterised in that: include HMI, PLC, control instrument,
Spiral measuring balance, hand operated gate valve and electric gate valve；Wherein:
HMI issues the proportioning of each batch compound according to demand for user and dispensing total amount parameter is extremely per hour
PLC；
PLC connects HMI, calculates setting of each raw material for proportioning and the dispensing total amount parameter issued according to HMI
Constant flow, and it is sent to control instrument；
Control instrument connects PLC and spiral measuring balance, for the raw material actual weight returned according to spiral measuring balance, passes through
Internal PID is calculated actual flow hourly, and calculates the difference setting flow that actual flow calculates with PLC
Value, according to the feedstock transportation speed of difference adjustable screw measuring balance, it is achieved accurate dosing；Control instrument is additionally operable to spiral
The raw material actual weight that measuring balance returns compares with weight upper limit value and lower limit value set in advance and differentiates, exceedes upper and lower
During limit value, then control electric gate valve and close, stop feed, it is achieved in hopper of weighing, be interrupted feed；
Spiral measuring balance connects control instrument, for carrying out feed according to the control of control instrument, and to existing reality
Raw material is weighed, and sends raw material actual weight to control instrument；
Hand operated gate valve and electric gate valve connect measuring balance and control instrument respectively, when hand operated gate valve is opened, can enter
Row manual operation feed.
Carbide raw material accurate dosing control system the most according to claim 1, it is characterised in that: described spiral subtracts
Amount scale includes Weighing control hopper, converter and conveying worm, wherein:
Described Weighing control hopper is provided with LOAD CELLS, for the actual raw material in Weighing control material is weighed,
And raw material actual weight is sent to control instrument；
Described converter connects control instrument and conveying worm, for the output adjustable screw conveyer according to control instrument
Rotating speed, make raw material actual flow follow the tracks of in real time raw material set flow.
3. a control method based on the carbide raw material accurate dosing control system described in claim 1 or 2, it is special
Levy and be that the method includes:
User issues the proportioning of each batch compound by HMI according to demand and dispensing total amount parameter is extremely per hour
PLC；
Proportioning that PLC issues according to HMI and dispensing total amount parameter calculate the setting flow of each raw material, and transmit
To control instrument；
Internal actual raw material is weighed by spiral measuring balance, and sends raw material actual weight to control instrument；
The raw material actual weight that control instrument returns according to spiral measuring balance, is calculated hourly by internal PID
Actual flow, and calculate the difference setting flow that actual flow calculates with PLC, according to difference adjustable screw measuring balance
Feedstock transportation speed, it is achieved accurate dosing；
The raw material actual weight that spiral measuring balance is returned by control instrument compares with weight upper limit value and lower limit value set in advance
And differentiation, when exceeding upper limit value and lower limit value, then control electric gate valve and close, stop feed, it is achieved in hopper of weighing
It is interrupted feed；
Spiral measuring balance carries out feed according to the control of control instrument；
When hand operated gate valve is opened, it is operated manually feed.
Carbide raw material accurate dosing control method the most according to claim 3, it is characterised in that: described spiral subtracts
Internal actual raw material is weighed by amount scale, and sends raw material actual weight to control instrument, specifically includes:
Actual raw material in Weighing control hopper is weighed by described spiral measuring balance by arranging LOAD CELLS, and right
The actual raw material weight value of LOAD CELLS carries out component signal sampling, and sends the component signal of sampling to controller
Table.
Carbide raw material accurate dosing control method the most according to claim 4, it is characterised in that: described controller
The raw material actual weight that table returns according to spiral measuring balance, is calculated actual flow hourly by internal PID,
Specifically include:
Control instrument, by internal PID, according to the component signal of the raw material actual weight gathered, calculates component signal
In the change of per time instance as instantaneous delivery, it is transformed to actual flow hourly further according to instantaneous delivery.
Carbide raw material accurate dosing control method the most according to claim 3, it is characterised in that: described according to difference
The feedstock transportation speed of value adjustable screw measuring balance, specifically includes:
Control instrument is according to the rotating speed of the conveying worm of difference adjustable screw measuring balance, and then regulation feedstock transportation speed,
Make raw material actual flow follow the tracks of raw material in real time and set flow.
Carbide raw material accurate dosing control method the most according to claim 3, it is characterised in that: when electronic plate
When feed in hopper of weighing opened by valve, PLC is set-point by control instrument locking screw conveyer rotating speed, until electric
Dynamic push-pull valve shutdown signal occurs again.
Carbide raw material accurate dosing control method the most according to claim 3, it is characterised in that: user is at HMI
When button is opened/stops in upper operation, batching control system opens/stops.
Carbide raw material accurate dosing control method the most according to claim 8, it is characterised in that: batching control system
The startup of system and stopping use along stopping the inverse control mode opened.
Carbide raw material accurate dosing control method the most according to claim 3, it is characterised in that: described HMI
Data are transmitted with PLC by Ethernet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523224.XA CN106017636A (en) | 2016-07-06 | 2016-07-06 | Calcium carbide raw material accurate batching control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610523224.XA CN106017636A (en) | 2016-07-06 | 2016-07-06 | Calcium carbide raw material accurate batching control system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390514A (en) * | 2017-07-26 | 2017-11-24 | 中国新型建材设计研究院 | A kind of frit automatic batching system discharge difference control method |
| CN108896145A (en) * | 2018-05-17 | 2018-11-27 | 燕山大学 | A kind of measurement control method of rotor weigher charging gear |
| CN113939717A (en) * | 2019-09-17 | 2022-01-14 | 休特林有限责任公司 | Method for dosing target components |
| CN113985727A (en) * | 2021-08-02 | 2022-01-28 | 江苏海澜正和环境科技有限公司 | Flue gas purification material injection system based on PID control mode |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003266164A (en) * | 2002-03-15 | 2003-09-24 | Japan Steel Works Ltd:The | Weight type feeder |
| CN101100631A (en) * | 2007-06-28 | 2008-01-09 | 武汉科恒工控工程有限责任公司 | Washing powder automatic producing device based on weightless scale control system |
| CN103388983A (en) * | 2012-05-10 | 2013-11-13 | 遵义裕丰铁合金设备有限公司 | Automatic proportioning, loading and unloading control system of ferroalloy submerged-arc furnace |
| CN203338153U (en) * | 2013-05-09 | 2013-12-11 | 安徽亚兰德新能源材料股份有限公司 | Flow feeding material control system used for synthesizing ternary material precursors |
| CN203523793U (en) * | 2013-05-27 | 2014-04-09 | 河南中烟工业有限责任公司 | One-key automatic calibration device of mixed pipe tobacco perfuming flow meter |
| CN204731602U (en) * | 2015-07-03 | 2015-10-28 | 山西省交通科学研究院 | A kind of particulate modified molybdenum adjuvant automatic feeder control system |
-
2016
- 2016-07-06 CN CN201610523224.XA patent/CN106017636A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003266164A (en) * | 2002-03-15 | 2003-09-24 | Japan Steel Works Ltd:The | Weight type feeder |
| CN101100631A (en) * | 2007-06-28 | 2008-01-09 | 武汉科恒工控工程有限责任公司 | Washing powder automatic producing device based on weightless scale control system |
| CN103388983A (en) * | 2012-05-10 | 2013-11-13 | 遵义裕丰铁合金设备有限公司 | Automatic proportioning, loading and unloading control system of ferroalloy submerged-arc furnace |
| CN203338153U (en) * | 2013-05-09 | 2013-12-11 | 安徽亚兰德新能源材料股份有限公司 | Flow feeding material control system used for synthesizing ternary material precursors |
| CN203523793U (en) * | 2013-05-27 | 2014-04-09 | 河南中烟工业有限责任公司 | One-key automatic calibration device of mixed pipe tobacco perfuming flow meter |
| CN204731602U (en) * | 2015-07-03 | 2015-10-28 | 山西省交通科学研究院 | A kind of particulate modified molybdenum adjuvant automatic feeder control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390514A (en) * | 2017-07-26 | 2017-11-24 | 中国新型建材设计研究院 | A kind of frit automatic batching system discharge difference control method |
| CN108896145A (en) * | 2018-05-17 | 2018-11-27 | 燕山大学 | A kind of measurement control method of rotor weigher charging gear |
| CN113939717A (en) * | 2019-09-17 | 2022-01-14 | 休特林有限责任公司 | Method for dosing target components |
| CN113985727A (en) * | 2021-08-02 | 2022-01-28 | 江苏海澜正和环境科技有限公司 | Flue gas purification material injection system based on PID control mode |
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Application publication date: 20161012 |