CN102967157B - Energy-saving and environment-friendly automatic control system for flux burdening of vertical laterite-nickel ore smelting furnace - Google Patents
Energy-saving and environment-friendly automatic control system for flux burdening of vertical laterite-nickel ore smelting furnace Download PDFInfo
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- CN102967157B CN102967157B CN201210492783.0A CN201210492783A CN102967157B CN 102967157 B CN102967157 B CN 102967157B CN 201210492783 A CN201210492783 A CN 201210492783A CN 102967157 B CN102967157 B CN 102967157B
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Abstract
The invention belongs to the field of ferronickel production, and relates to an energy-saving and environment-friendly automatic control system for flux burdening of a vertical laterite-nickel ore smelting furnace. The control system is characterized by consisting of four parts, namely, a detection unit, an industrial personnel computer, a PLC (programmable logic controller) unit and an executing mechanism. The content includes three parts as follows: 1), Laterite-nickel ore components and flux components are detected and analyzed on line in real time before smelting; 2), the flux matching ratio is calculated and automatic burdening is conducted; and 3), flux matching ratio calculation is perfected. The control system detects the components of every batch of raw materials and flux before entering the furnace, finds out corresponding dreg types of smelting through the computer according to characteristics of an Mg-Si-Ca ternary phase diagram, then works out the required amount of the flux, and adopts automatic control charging. Not only is a great deal of manpower saved, but also the preparation accuracy of smelting furnace charges is ensured.
Description
Technical field
The invention belongs to ferronickel production field, relate to a kind of energy saving and environment friendly smelting laterite-nickel ores shaft furnace flux Ingredient Automatic Control System, the flux demand of mainly utilizing detection technique and PLC technology to realize before smelting is calculated and automatically adds.
Technical background
At present existing a large amount of ferronickel manufacturing enterprise produces ferronickel with lateritic nickel ore, but raw material flux adding procedure substantially manually roughly completes by a certain percentage.So not only need a large amount of labours, and due to each batch of lateritic nickel ore composition fluctuation, production process can not be stablized.
Summary of the invention:
The present invention seeks to add in order to solve smelting laterite-nickel ores raw material flux the problem wasting time and energy with material composition shakiness.
A kind of smelting laterite-nickel ores shaft furnace flux Ingredient Automatic Control System, by detecting unit, industrial computer, PLC controller, executing agency's part four parts compositions, comprise 1) lateritic nickel ore composition, flux component detect and smelt before instant on-line analysis; 2) flux proportioning is calculated and automatic blending process; 3) three parts of self-perfection function that flux proportioning is calculated
The concrete step of controlling is:
1, utilize X-fluorescence spectrometer to detect online raw material in feed bin and the composition of flux, and deliver to PLC controller, PLC is sent to industrial computer by these detected values by Ethernet again.
2, utilize and in industrial computer, store the engineering application program of writing according to technology theory and experience, calculate in advance the proportioning of raw material and flux and the signal component value of slagging tap according to the raw material collecting and flux component value.
3, proportioning expectation being calculated is passed to PLC controller, in industrial computer, the signal component value of chemically examining the proportioning value of signal component value and precomputation and slag tap is formed to a relation table simultaneously, is just stored in lane database.
4, PLC controller is received after the proportioning value of precomputation, and by corresponding in good time control motor-driven valve action, by the good proportion ingredient of precomputation, PLC controller is followed the tracks of the material adding is defined to batch number automatically simultaneously.
5, the furnace charge described in step 4 batch taps a blast furnace and slags tap after regular hour melting, and to this batch of iron and slag automatic sampling, sample is automatically delivered to on-line detector and analyzed its signal component value after cooling, and sample chemical examination signal component value is transferred to industrial computer.
6, the application program in industrial computer will be found out the budget proportioning value and the slag charge signal component value that are stored in computer according to batch number, budget slag charge signal component value and actual value are compared, with reference to this fiducial value, raw material ratio formula and the discrepant empirical parameter of actual value are adjusted, so that the estimated value of lower batch of proportioning and slag charge composition more approaches actual value, and upgrade the value that was originally stored in database with estimated value more accurately, with this back and forth until reach best proportioning.
The present invention detects for every batch of raw material and flux component that enters stokehold, and according to Mg-Si-Ca ternary phase diagrams feature, find out and smelt corresponding slag type by computer, then calculate required flux amount, adopt automation control reinforced simultaneously, not only save a large amount of manpowers, can also ensure the accuracy that smelting furnace material is prepared.
Brief description of the drawings
Fig. 1 is system construction drawing of the present invention,
Fig. 2 is system flow chart of the present invention.
Detailed description of the invention
The present invention by automatic batching system by detecting unit, industrial computer, PLC controller, executing agency's part four parts compositions.
Detecting unit is mainly EDX3600BX XRF, and EDX3600BX XRF is to utilize XRF technology to solve domestic cement plant, quick, the accurate analysis of iron company to element in complicated composition, material.The principal character of this technology is: utilize low energy X-ray to excite element to be measured, the light elements such as Si, S, Al, Ca, Mg are had to good stimulation effect, and the testing time is short, detection efficiency and operating efficiency are greatly improved: adopt UHRD detector, there is good energy linearity and energy resolution, and good energy spectrum characteristics, higher peak back of the body ratio; Adopt automatic spectrum stabilization device, ensured the uniformity of instrument work: utilize Spectrum stripping techniques in analysis to make decomposition of spectral peak, the analysis precision that the analyzer that adopts UHRD detector has been had the test of the light elements such as Si, S, Al; The linear regression method that adopts multi-parameter, is significantly reduced absorption, repelling effect between element.
The budget that the industrial computer of native system mainly completes raw material flux proportioning is calculated and storage to data and issuing again.That native system adopts is Siemens industrial computer SIMATIC IPC-547D, SIMATIC IPC-547D is that a powerful Industrial PC designed size is 19 cun of (4U) racks, IPC547D is equipped with the energy-saving Pentium Dual Core/Corei5/Corei7 processor with power, memory size reaches 16GB, serial ATA hard-disk capacity reaches 500GB, can within 24 hours, move continuously, and high treatability is reliably provided.IPC547D has following characteristic, to strengthen system availability:
In the detachable frame of hot plug, can adopt at most 3*1TB RAID5 mass storage unit, they have the memory headroom of optimization, guaranteeing data security property and high-performance; The temperature and the fan LED that utilize front end, can comprehensively diagnose and monitor; Redundant power; Two have the gigabit ethernet interface of binding function, therefore can obtain high data rate and redundancy.
PLC controller is mainly made up of Siemens S7-400 series of PLC series industrial computer, Siemens PLC C stable performance, and processing speed is fast, powerful, and networking capability is also quite strong.Whole control system comprises a PLC main website and ET200 distant station.PLC main website is by the CPU (model 6ES7416-2XN05-0AB0) of a S7-400, a CP443-1 EPA communication module (model 6GK7443-1EXl1-0XE0), a DP communication module (model 6GK7443-5DX04-0XE0) and corresponding stand module and power module.Mainly complete signal input and output processing, logical calculated, Communication processing etc.ET200 distant station is by ET200 communication module (model 6ES7153-1AA03-0XA0) and corresponding digital input and output modules, analog input output module.Complete input collection to Site Detection signal and the output to output signal.The signal that ET200 gathers is sent to PLC main station system by DP netting twine.
Executing agency comprises three electrically operated valves.PLC controller sends control instruction to electrically operated valve, and three electrically operated valves are received and controlled three small feed bins (ore storage bunker, coke feed bin, lime stone feed bin) after instruction and prepare burden to intermediate bunker by proportioning.
Claims (1)
1. a smelting laterite-nickel ores shaft furnace flux Ingredient Automatic Control System, it is characterized in that being made up of detecting unit, industrial computer, PLC controller, executing agency's part four parts, content comprises 1) lateritic nickel ore composition, flux component detect and smelt before instant on-line analysis; 2) flux proportioning is calculated and automatic blending process; 3) three parts of self-perfection function that flux proportioning is calculated;
The concrete step of controlling is:
(1), utilize X-fluorescence spectrometer to detect online raw material in feed bin and the composition of flux, and deliver to PLC controller, PLC is sent to industrial computer by these detected values by Ethernet again;
(2), utilize and in industrial computer, store the engineering application program of writing according to technology theory and experience, calculate in advance the proportioning of raw material and flux and the signal component value of slagging tap according to the raw material collecting and flux component value;
(3), will estimate that the proportioning that calculates passes to PLC controller, in industrial computer, the proportioning value of this chemical examination signal component value and precomputation and the signal component value of slagging tap are formed to a relation table simultaneously, be just stored in lane database;
(4), PLC controller receives after the proportioning value of precomputation, by corresponding in good time control motor-driven valve action, by the good proportion ingredient of precomputation, while PLC controller is followed the tracks of the material adding is defined to batch number automatically;
(5), the furnace charge of described batch of step (4) taps a blast furnace and slags tap after regular hour melting, to this batch of iron and slag automatic sampling, sample is automatically delivered to on-line detector and is analyzed its signal component value after cooling, and sample chemical examination signal component value is transferred to industrial computer;
(6), the application program in industrial computer will be found out the budget proportioning value and the slag charge signal component value that are stored in computer according to batch number, budget slag charge signal component value and actual value are compared, with reference to this fiducial value, raw material ratio formula and the discrepant empirical parameter of actual value are adjusted, so that the estimated value of lower batch of proportioning and slag charge composition more approaches actual value, and upgrade the value that was originally stored in database with estimated value more accurately, with this back and forth until reach best proportioning.
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| CN201210492783.0A CN102967157B (en) | 2012-11-26 | 2012-11-26 | Energy-saving and environment-friendly automatic control system for flux burdening of vertical laterite-nickel ore smelting furnace |
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| CN201210492783.0A CN102967157B (en) | 2012-11-26 | 2012-11-26 | Energy-saving and environment-friendly automatic control system for flux burdening of vertical laterite-nickel ore smelting furnace |
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| CN102967157A CN102967157A (en) | 2013-03-13 |
| CN102967157B true CN102967157B (en) | 2014-08-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104451164B (en) * | 2014-12-15 | 2017-04-26 | 湖南省加嘉锑业科技有限公司 | Heavy metal treatment control method and system |
| CN104694754A (en) * | 2015-03-16 | 2015-06-10 | 四川金广实业（集团）股份有限公司 | Method for adjusting smelted lateritic ore slag of submerged-arc furnace |
| CN105861817B (en) * | 2016-05-18 | 2017-10-24 | 武汉钢铁有限公司 | A kind of method for studying flux distribution in sintered compound granulation |
| CN108660360A (en) * | 2018-05-24 | 2018-10-16 | 东营嘉扬精密金属有限公司 | Casting economy and quick feed proportioning system application technology |
| CN113718109B (en) * | 2021-09-01 | 2022-10-18 | 兰州有色冶金设计研究院有限公司 | Method for determining slag form of electronic waste smelted in molten pool and slag form |
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Effective date of registration: 20151202 Address after: 113122 Liaoning city in Fushun Province Economic Development Zone Economic Zone Lagucun Laguna Patentee after: Fushun Hanwang DRI Co.,Ltd. Address before: Shenhe Youth Street District of Shenyang City, Liaoning province 110016 No. 227 building Hanking Patentee before: Hanking Industrial Group Co., Ltd. |
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