CN109186272A - Sintered compound feed bin level control system and method - Google Patents
Sintered compound feed bin level control system and method Download PDFInfo
- Publication number
- CN109186272A CN109186272A CN201811214741.4A CN201811214741A CN109186272A CN 109186272 A CN109186272 A CN 109186272A CN 201811214741 A CN201811214741 A CN 201811214741A CN 109186272 A CN109186272 A CN 109186272A
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- material position
- analysis
- blending bunker
- feed bin
- sintering
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 78
- 238000002156 mixing Methods 0.000 claims abstract description 51
- 238000005245 sintering Methods 0.000 claims abstract description 47
- 238000004458 analytical method Methods 0.000 claims abstract description 40
- 230000002159 abnormal effect Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000005303 weighing Methods 0.000 claims abstract description 5
- 238000011084 recovery Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000007405 data analysis Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention belongs to industrial computer technique of real-time control fields, more particularly, to a kind of sintered compound feed bin level control system and method, it is characterized by comprising real time monitoring mechanisms for control system, signal processing and analysis mechanism, control executing agency, monitoring mechanism in real time includes the charging belt scale being arranged in above blending bunker, storehouse weighing sensor on blending bunker is set, the round roller batcher being arranged in below blending bunker and the frequency converter detection velocity feedback device on sintering machine, signal processing and analysis mechanism include Computerized analysis system, controlling executing agency includes logic controller.The present invention carries out diagnostic analysis to live abnormal conditions according to on-site signal, draw the expected trend curve of blending bunker material position, provide the solution for restoring normal material position, realize the intelligent control of blending bunker material position, the adjustment time for shortening abnormal material position increases Sintering Yield, improves full factory's productive profit.
Description
Technical field
The invention belongs to industrial computer technique of real-time control fields, more particularly, to a kind of sintered compound feed bin material position control
System and method processed.
Background technique
Sintering machine is the capital equipment of sintering production, and feeding source is the blending bunker at the top of sintering device handpiece, and is mixed
It closes feed bin and then provides charging by the mixed raw material of feed proportioning system production.Intermediate ring as connection feed proportioning system and sintering system
Section, blending bunker plays the role of vital.It can guarantee there is sufficient stable raw material in blending bunker, be sintering function
The precondition of no full production directly determines the economic benefit of sintering plant whole year.Under normal production scenarios, when ingredient system
When the load of system and the discharge quantity of sintering system keep certain proportion, the material position of raw material can be a stable region in blending bunker
Between fuctuation within a narrow range.But cause the of short duration shutdown of system or some system due to certain original when ingredient or agglomerating plant break down
Because when leading to abnormal load, the material position in blending bunker can all have larger change.Under traditional mode of production mode, restore blending bunker
Material position needs operator to adjust inlet amount and load repeatedly to stable region, not only wastes time, but also reduces sintering
Mineral products amount.
Summary of the invention
The object of the present invention is to provide control system and sides that one kind is capable of intelligent optimal control sintered compound feed bin material position
Method.
The purpose of the present invention is what is realized by following technical proposals:
Sintered compound feed bin level control system of the invention, it is characterised in that including monitoring mechanism in real time, in real time with this
The signal processing and analysis mechanism that monitor control mechanism is connected, the control executing agency being connected with this signal processing and analysis system, institute
The real time monitoring mechanism stated includes the charging belt scale being arranged in above blending bunker, is arranged on the blending bunker
Storehouse weighing sensor, the round roller batcher being arranged in below the blending bunker and the frequency converter on sintering machine detect speed
Ultramagnifier, the signal processing and analysis mechanism includes Computerized analysis system, and the control executing agency includes logic control
Device processed, the signal that the real time monitoring mechanism detects pass through the logic controller and the Computerized analysis system
Communicated, the analysis result of the signal processing and analysis mechanism by the logic controller control field device according to
Solution executes task.
The Computerized analysis system includes abnormal data analysis module, material position curve display module, solution meter
Calculate module and communication data interface module.
The abnormal data analysis module includes feed proportioning system data exception detection unit, and feed proportioning system shuts down abnormal inspection
Unit is surveyed, sintering system data exception detection unit and sintering system shut down abnormality detecting unit.
The material position curve display module includes material position curve computation unit and material position curve display unit.
The solution computing module includes material position tracing analysis unit, and solution proposes unit and artificial correction
Parameters unit.
A kind of control method using sintered compound feed bin level control system, it is characterised in that include the following steps:
Step 1, it monitors on-site signal in real time, diagnostic analysis is carried out to the abnormal conditions of feed proportioning system and sintering system；
Step 2, the expection trend curve of blending bunker material position is drawn according to abnormal conditions；
Step 3, analytical calculation is carried out to the expected trend curve of blending bunker material position, providing being capable of fast quick-recovery regular burden(ing) position
Solution, and carry out artificial correction；
Step 4, by the communication with logic controller, field device is controlled according to solution and executes task.
Advantages of the present invention:
Sintered compound feed bin level control system of the invention and method carry out live abnormal conditions according to on-site signal
Diagnostic analysis draws the expected trend curve of blending bunker material position, provides the solution for restoring normal material position, and pass through logic control
Device control field device processed executes task according to solution, realizes the intelligent control of blending bunker material position, not only shortens
The adjustment time of abnormal material position eliminates human error factor, while increasing Sintering Yield, improving full factory's production benefit
Profit, has a vast market foreground.
Detailed description of the invention
Fig. 1 is the schematic diagram of sintered compound feed bin level control system of the invention.
Fig. 2 is the flow diagram of sintered compound feed bin level control method of the invention.
Fig. 3 is the structural schematic diagram of computer software of the invention.
Fig. 4 is the flow diagram of abnormal data analysis module of the invention.
Fig. 5 is the flow diagram of solution computing module of the invention.
Specific embodiment
A specific embodiment of the invention is further illustrated with reference to the accompanying drawing.
As shown in Figs. 1-5, sintered compound feed bin level control system of the invention, it is characterised in that including monitoring machine in real time
Structure, the signal processing and analysis mechanism being connected with this real time monitoring mechanism, the control being connected with this signal processing and analysis system
Executing agency, the real time monitoring mechanism include the charging belt scale 1 for being arranged in 3 top of blending bunker, are arranged in institute
The storehouse weighing sensor 4 on blending bunker 3 is stated, the round roller batcher 5 and sintering machine of 3 lower section of blending bunker are arranged in
Frequency converter on 7 detects velocity feedback device, and the signal processing and analysis mechanism includes Computerized analysis system, the control
Executing agency includes logic controller, and the signal that the real time monitoring mechanism detects passes through the logic controller and institute
The Computerized analysis system stated is communicated, and the analysis result of the signal processing and analysis mechanism passes through the logic control
Device controls field device and executes task according to solution.
The Computerized analysis system includes abnormal data analysis module, material position curve display module, solution meter
Calculate module and communication data interface module.
The abnormal data analysis module includes feed proportioning system data exception detection unit, and feed proportioning system shuts down abnormal inspection
Unit is surveyed, sintering system data exception detection unit and sintering system shut down abnormality detecting unit.
The material position curve display module includes material position curve computation unit and material position curve display unit.
The solution computing module includes material position tracing analysis unit, and solution proposes unit and artificial correction
Parameters unit.
Charging belt scale 1 measures feed proportioning system load, and ingredient enters blending bunker 3 through shuttle type cloth machine 2, from mixture
The ingredient that storehouse 3 comes out feeds sintering machine 7 through round roller batcher 5, nine roller material distributing machines 6；Storehouse weighing sensor 4 measures blending bunker 3
Material position, by frequency converter detection velocity feedback, simultaneously output speed gives sintering machine 7 with round roller batcher 5, and above-mentioned signal passes through logic
Controller is communicated with computer software.Computer software carries out data analysis to collected signal, draws
Blending bunker material position is expected trend curve, provides the solution for restoring normal material position, and control scene by logic controller
Equipment executes task according to solution.
A kind of control method using sintered compound feed bin level control system, it is characterised in that include the following steps:
Step 1, it monitors on-site signal in real time, diagnostic analysis is carried out to the abnormal conditions of feed proportioning system and sintering system；
Step 2, the expection trend curve of 3 material position of blending bunker is drawn according to abnormal conditions；
Step 3, analytical calculation is carried out to the expected trend curve of 3 material position of blending bunker, providing being capable of fast quick-recovery regular burden(ing)
The solution of position, and carry out artificial correction；
Step 4, by the communication with logic controller, field device is controlled according to solution and executes task.
Computer software structural schematic diagram is as shown in Figure 3, comprising:
Abnormal data analysis module, for the abnormal conditions of analysis system, flow chart is as shown in Figure 4.The module includes
With lower unit:
Feed proportioning system data exception detection unit, when a certain flow detection point data of feed proportioning system is flat beyond or below history
When not matched that with expected sintering machine 7 using doses after mean value certain percentage and this section of material arrival blending bunker 3, system is recognized
Determine feed proportioning system data exception, record heteromerism is according to delay time T of this section of material apart from blending bunker 3 when startingdap, record different
Delay time T of this section of material apart from blending bunker 3 when regular data restoresdop, and calculate TdapWith TdopWith different in time interval
The expected flow value W for entering blending bunker 3 of the feed proportioning system of normal materialdp, when abnormal data is without clear recovery time, system is held
It is continuous to record and calculate abnormal flow Wdp。
Feed proportioning system shuts down abnormality detecting unit, when feed proportioning system cancel closedown and sintering system normal operation, system
Assert that feed proportioning system shuts down abnormal, the expected time T that resumes production of feed proportioning systemopIt can be arranged by system default or by operator's hand
Dynamic setting, after feed proportioning system resumes production, system corrects T automaticallyopValue.
Sintering system data exception detection unit, when a certain flow detection point data of sintering system is lower than history average one
When determining percentage, the monitoring point upstream agglomerating plant can reduce the speed of corresponding proportion to meet blanking requirement at this time, and work as this
When feed proportioning system load and sintering system inlet amount when not matching that, system assert sintering system data exception, record mixing
3 blanking flow W of feed binds, recording exceptional data recovery time Tdos, when abnormal data is without clear recovery time, systems stay note
Record 3 discharge quantity W of blending bunkerds。
Sintering system shuts down abnormality detecting unit, when sintering system cancel closedown and feed proportioning system normal operation, system
Assert that sintering system shuts down abnormal, the expected time T that resumes production of sintering systemosIt can be arranged by system default or by operator's hand
Dynamic setting, after sintering system resumes production, system corrects T automaticallyosValue.
Material position curve display module, comprising:
Material position curve computation unit, for calculating after the detection of abnormal data analysis module is out of order, blending bunker 3 is not
Carry out TfExpection material position H in timey。
When feed proportioning system data exception occurs, it is contemplated that material position HyIt can be determined by following formula (1),
HrFor the average material position of blending bunker 3 during normal production, WopStream is averagely descended for blending bunker 3 during normal production
Amount.
When feed proportioning system shutdown exception occurs, it is contemplated that material position HyIt can be determined by following formula (2),
When sintering system data exception occurs, it is contemplated that material position HyIt can be determined by following formula (3),
WisIt is averaged blanking flow for blending bunker 3 during normal production.
When sintering system shutdown exception occurs, it is contemplated that material position HyIt can be determined by following formula (4),
Material position curve display unit is expected for the graphical display function of the expected trend curve of 3 material position of blending bunker when expected
Position HyBeyond or below setting safe-ty level range when, curve is shown in red and alert.
Solution computing module, for proposing solution to abnormal conditions, flow chart is as shown in Figure 5.The module
Including with lower unit:
Material position tracing analysis unit, for the analytic function to the expected trend curve of 3 material position of blending bunker.Expect for expected
Position HyCan the case where safe-ty level range beyond setting, judgement reduce expected material by improving sintering system discharge quantity
Can position, judgement reduce expected material position by reducing feed proportioning system discharge quantity；For expected material position HyLower than the safety of setting
Can the case where material position range, judgement improve expected material position by improving feed proportioning system discharge quantity, and can judgement pass through reduction
Sintering system discharge quantity improves expected material position.
Solution proposes unit, is analyzed according to material position tracing analysis unit as a result, caused by for various abnormal causes
The expected material position of blending bunker 3 deviates, and provides solution.
For because of abnormal cause, the expected material position H of caused blending bunker 3yThe case where safe-ty level range beyond setting,
When can be by improving sintering system discharge quantity to reduce expected material position, round roller batcher 5 should be improved in specific time and burnt
The speed of knot machine 7 keeps the balance of blending bunker 3 expected blanking total amount and expected feeding total amount, and after restoring normal material position,
Restore the speed of round roller batcher 5 and sintering machine 7.When can not by improve sintering system discharge quantity, but can by reduce match
Material system discharge quantity should reduce feed proportioning system dosage under the premise of feed proportioning system allows reduction of speed come when reducing expected material position,
Reduction ratio should be determined according to the recovery time of setting.When but also can not can not only being passed through by improving sintering system discharge quantity
Feed proportioning system discharge quantity is reduced shut down, should feed proportioning system when reducing expected material position and be further continued for running for a period of time.
For due to abnormal cause, the expected material position H of caused blending bunker 3yLower than the feelings of the safe-ty level range of setting
Condition, when can by improve feed proportioning system discharge quantity to improve expected material position when, should under the premise of feed proportioning system allows speed-raising,
Feed proportioning system dosage is improved, raising ratio should be determined according to the recovery time of setting.When can not pass through improve feed proportioning system
Discharge quantity should reduce the speed of round roller batcher 5 and sintering machine in specific time, keep blending bunker come when improving expected material position
The balance of 3 expected blanking total amounts and expected feeding total amount, and after restoring normal material position, restore round roller batcher 5 and sintering machine 7
Revolving speed.
Artificial correction parameters unit modifies function to the setting of parameter for operator.The certain parameters of system are using silent
Recognize setting value, when these setting values and larger actual conditions deviation, parameter can be modified by operator according to the actual situation.Such as
Failure system is expected recovery time, 3 material position recovery time of mixing bunker material and the artificial downtime of feed proportioning system etc..
Communication data interface module, for the data communication between computer software and logic controller.Logic control
On-site test signal is transferred to computer software by device processed, the acquisition for data；Computer software holds equipment
Line command is transferred to logic controller, the control for field device.
Sintered compound feed bin level control system of the invention and method carry out live abnormal conditions according to on-site signal
Diagnostic analysis draws the expected trend curve of 3 material position of blending bunker, provides the solution for restoring normal material position, and pass through logic
Controller controls field device and executes task according to solution, realizes the intelligent control of 3 material position of blending bunker, not only shortens
The adjustment time of abnormal material position eliminates human error factor, while increasing Sintering Yield, improving full factory's production benefit
Profit, has a vast market foreground.
Claims (6)
1. a kind of sintered compound feed bin level control system, it is characterised in that including monitoring mechanism in real time, monitor machine in real time with this
The signal processing and analysis mechanism that structure is connected, the control executing agency being connected with this signal processing and analysis system, the reality
When monitor control mechanism include the charging belt scale being arranged in above blending bunker, be arranged on the blending bunker storehouse weighing
Sensor, the round roller batcher being arranged in below the blending bunker and the frequency converter on sintering machine detect velocity feedback
Device, the signal processing and analysis mechanism includes Computerized analysis system, and the control executing agency includes logic controller,
The signal that the real time monitoring mechanism detects is carried out by the logic controller and the Computerized analysis system
The analysis result of communication, the signal processing and analysis mechanism controls field device according to solution by the logic controller
Scheme executes task.
2. sintered compound feed bin level control system according to claim 1, it is characterised in that the computer analysis
System includes abnormal data analysis module, material position curve display module, solution computing module and communication data interface module.
3. sintered compound feed bin level control system according to claim 2, it is characterised in that the abnormal data point
Analysis module includes feed proportioning system data exception detection unit, and feed proportioning system shuts down abnormality detecting unit, sintering system data exception
Detection unit and sintering system shut down abnormality detecting unit.
4. sintered compound feed bin level control system according to claim 2, it is characterised in that the material position curve is aobvious
Show that module includes material position curve computation unit and material position curve display unit.
5. sintered compound feed bin level control system according to claim 2, it is characterised in that the solution meter
Calculating module includes material position tracing analysis unit, and solution proposes unit and artificial correction parameters unit.
6. a kind of control method using sintered compound feed bin level control system, it is characterised in that include the following steps:
Step 1, it monitors on-site signal in real time, diagnostic analysis is carried out to the abnormal conditions of feed proportioning system and sintering system；
Step 2, the expection trend curve of blending bunker material position is drawn according to abnormal conditions；
Step 3, analytical calculation is carried out to the expected trend curve of blending bunker material position, provides the solution for capableing of fast quick-recovery regular burden(ing) position
Certainly scheme, and carry out artificial correction；
Step 4, by the communication with logic controller, field device is controlled according to solution and executes task.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811214741.4A CN109186272A (en) | 2018-10-18 | 2018-10-18 | Sintered compound feed bin level control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811214741.4A CN109186272A (en) | 2018-10-18 | 2018-10-18 | Sintered compound feed bin level control system and method |
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| Publication Number | Publication Date |
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| CN109186272A true CN109186272A (en) | 2019-01-11 |
Family
ID=64945874
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811214741.4A Pending CN109186272A (en) | 2018-10-18 | 2018-10-18 | Sintered compound feed bin level control system and method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822909A (en) * | 2019-11-05 | 2020-02-21 | 马鞍山钢铁股份有限公司 | Control method for balancing sintering machine table surface material distribution amount |
| CN116736745A (en) * | 2023-07-06 | 2023-09-12 | 碎得机械(北京)有限公司 | Control method, device and system of mixing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1096296A (en) * | 1963-12-12 | 1967-12-29 | Metallgesellschaft Ag | Method of controlling the operation of moving grate sintering installations |
| US20110311926A1 (en) * | 2009-02-11 | 2011-12-22 | Paul Wurth S.A. | Method and system for adjusting the flow rate of charge material in a charging process of a shaft furnace |
| CN102494732A (en) * | 2011-12-06 | 2012-06-13 | 中冶长天国际工程有限责任公司 | Silo material level balance deviation detection method and system |
| CN103344115A (en) * | 2013-06-29 | 2013-10-09 | 济钢集团有限公司 | Novel sintering machine speed control method |
| CN105046357A (en) * | 2015-07-15 | 2015-11-11 | 辽宁中新自动控制集团股份有限公司 | Material balance control model for return ore bunker in sintering system |
| CN207452206U (en) * | 2017-06-09 | 2018-06-05 | 山东钢铁股份有限公司 | A kind of dispensing flow control system of sintered material |
-
2018
- 2018-10-18 CN CN201811214741.4A patent/CN109186272A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1096296A (en) * | 1963-12-12 | 1967-12-29 | Metallgesellschaft Ag | Method of controlling the operation of moving grate sintering installations |
| US20110311926A1 (en) * | 2009-02-11 | 2011-12-22 | Paul Wurth S.A. | Method and system for adjusting the flow rate of charge material in a charging process of a shaft furnace |
| CN102494732A (en) * | 2011-12-06 | 2012-06-13 | 中冶长天国际工程有限责任公司 | Silo material level balance deviation detection method and system |
| CN103344115A (en) * | 2013-06-29 | 2013-10-09 | 济钢集团有限公司 | Novel sintering machine speed control method |
| CN105046357A (en) * | 2015-07-15 | 2015-11-11 | 辽宁中新自动控制集团股份有限公司 | Material balance control model for return ore bunker in sintering system |
| CN207452206U (en) * | 2017-06-09 | 2018-06-05 | 山东钢铁股份有限公司 | A kind of dispensing flow control system of sintered material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110822909A (en) * | 2019-11-05 | 2020-02-21 | 马鞍山钢铁股份有限公司 | Control method for balancing sintering machine table surface material distribution amount |
| CN110822909B (en) * | 2019-11-05 | 2021-05-14 | 马鞍山钢铁股份有限公司 | Control method for balancing sintering machine table surface material distribution amount |
| CN116736745A (en) * | 2023-07-06 | 2023-09-12 | 碎得机械(北京)有限公司 | Control method, device and system of mixing equipment |
| CN116736745B (en) * | 2023-07-06 | 2024-01-23 | 碎得机械(北京)有限公司 | Control method, device and system of mixing equipment |
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Application publication date: 20190111 |