CN102967157A - 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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- CN102967157A CN102967157A CN2012104927830A CN201210492783A CN102967157A CN 102967157 A CN102967157 A CN 102967157A CN 2012104927830 A CN2012104927830 A CN 2012104927830A CN 201210492783 A CN201210492783 A CN 201210492783A CN 102967157 A CN102967157 A CN 102967157A
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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 the ferronickel production field, relate to a kind of energy saving and environment friendly smelting laterite-nickel ores shaft furnace flux Ingredient Automatic Control System, mainly utilize detection technique and PLC technology to realize smelting front flux demand calculating and automatically adding.
Technical background
At present existing a large amount of ferronickel manufacturing enterprise produces ferronickel with lateritic nickel ore, but raw material flux adding procedure is substantially manually roughly finished by a certain percentage.So not only need a large amount of labours, and because the fluctuation of each batch lateritic nickel ore composition, production process can not be stablized.
Summary of the invention:
The present invention seeks in order to solve the problem that smelting laterite-nickel ores raw material flux adds wastes time and energy with the material composition shakiness.
A kind of energy saving and environment friendly smelting laterite-nickel ores shaft furnace flux Ingredient Automatic Control System, by detecting unit, industrial computer, PLC control module, executing agency's part four parts form, and comprise 1) the lateritic nickel ore composition, flux component detects and smelt before instant on-line analysis; 2) the flux proportioning is calculated and the automatic blending process; 3) three parts of self-perfection function of flux proportioning calculating
Concrete control step is:
1, utilize the X-fluorescence spectrometer to detect online the interior raw material of feed bin and the composition of flux, and deliver to the PLC controller, PLC is sent to industrial computer with these detected values by Ethernet again.
2, utilize and in industrial computer, to store the engineering application program of writing according to technology theory and experience, calculate in advance the proportioning of raw material and solvent and the signal component value of slagging tap according to the raw material that collects and solvent composition value.
3, the proportioning of expectation being calculated is passed to the PLC controller, in the industrial computer proportioning value of this chemical examination signal component value and precomputation and the signal component value of slagging tap is formed a relation table simultaneously, just it is stored in lane database.
4, after the PLC controller is received the proportioning value of precomputation, with the corresponding motor-driven valve action of in good time control, by the good proportion ingredient of precomputation, while PLC controller will automatically define batch number to the material that adds and follow the tracks of.
5, the furnace charge of described batch of step 4 is slagged tap through tapping a blast furnace after the regular hour melting, and to this batch 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 the industrial computer will be found out budget proportioning value and the slag charge signal component value that is stored in computer according to batch number, budget slag charge signal component value and actual value are compared, with reference to this fiducial value, some empirical parameter of raw material ratio formula is adjusted, so that the estimated value of lower batch of proportioning and slag charge composition more approaches actual value, and upgrade the value that originally was 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 the stokehold, and according to Mg-Si-Ca ternary phase diagrams characteristics, find out the corresponding slag type of smelting by computer, then calculate required flux amount, adopt simultaneously automation control reinforced, not only save a large amount of manpowers, can also guarantee the accuracy that smelting furnace material is prepared.
Description of drawings
Fig. 1 is system construction drawing of the present invention,
Fig. 2 is system flow chart of the present invention.
The specific embodiment
The present invention by automatic batching system by detecting unit, industrial computer, the PLC control module, executing agency's part four parts form.
Detecting unit mainly is the EDX3600BX XRF, the EDX3600BX XRF be utilize the XRF technology solve domestic cement plant, iron company to element in complicated composition, the material fast, accurate analysis.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 there is good stimulation effect, and the testing time is short, detection efficiency and operating efficiency have greatly been improved: adopt the UHRD detector, have good energy linearity and energy resolution, and good energy spectrum characteristics, higher peak back of the body ratio; Adopt the automatic spectrum stabilization device, guaranteed the uniformity of instrument work: utilize Spectrum stripping techniques in analysis to make decomposition of spectral peak, make the analyzer that adopts the UHRD detector have good analysis precision to the test of the light elements such as Si, S, Al; Adopt the linear regression method of multi-parameter, absorption, repelling effect between element are significantly reduced.
The budget that the industrial computer of native system is mainly finished raw material flux proportioning is calculated and to data storage with issue 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 (4U) racks, IPC547D is equipped with the energy-saving Pentium Dual Core/Corei5/Corei7 processor with power, memory size reaches 16GB, the serial ATA hard-disk capacity reaches 500GB, can move continuously in 24 hours, and high treatability reliably is provided.IPC547D has following characteristic, and 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; Utilize temperature and the fan LED of front end, can comprehensively diagnose and monitor; Redundant power; Therefore two gigabit ethernet interfaces with binding function can obtain high data rate and redundancy.
The PLC control module mainly is made of Siemens S7-400 series of PLC series industrial computer, Siemens PLC C stable performance, and processing speed is fast, and is powerful, and networking capability is also quite strong.Whole control system comprises a PLC main website and ET200 distant station.The PLC main website is by the CPU (model 6ES7416-2XN05-0AB0) of a S7-400, a CP443-1 EPA communication module (model 6GK7443-1EX11-0XE0), a DP communication module (model 6GK7443-5DX04-0XE0) and corresponding stand module and power module.Mainly finish and the signal input and output are processed logical calculated, Communication processing etc.The ET200 distant station is by ET200 communication module (model 6ES7153-1AA03-0XA0) and corresponding digital input and output modules, analog input output module.Finish to the input collection of Site Detection signal with to the output of output signal.The signal that ET200 gathers is sent to the PLC main station system by the DP netting twine.
Executing agency comprises three electrically operated valves.The PLC controller sends control instruction to electrically operated valve, and three small feed bins of control (ore storage bunker, coke feed bin, lime stone feed bin) were prepared burden to intermediate bunker by proportioning after three electrically operated valves were received instruction.
Claims (1)
1. energy saving and environment friendly smelting laterite-nickel ores shaft furnace flux Ingredient Automatic Control System, it is characterized in that being comprised of detecting unit, industrial computer, PLC control module, executing agency's part four parts, content comprises 1) lateritic nickel ore composition, flux component detect and smelt before instant on-line analysis; 2) the flux proportioning is calculated and the automatic blending process; 3) three parts of self-perfection function of flux proportioning calculating;
Concrete control step is:
(1), utilize the X-fluorescence spectrometer to detect online raw material in the feed bin and the composition of flux, and deliver to the PLC controller, PLC is sent to industrial computer with these detected values by Ethernet again;
(2), utilize and in industrial computer, to store the engineering application program of writing according to technology theory and experience, calculate in advance the proportioning of raw material and solvent and the signal component value of slagging tap according to the raw material that collects and solvent composition value;
(3), the proportioning of estimating to calculate is passed to the PLC controller, in the industrial computer proportioning value of this chemical examination signal component value and precomputation and the signal component value of slagging tap are formed a relation table simultaneously, just it is stored in lane database;
(4), after the PLC controller receives the proportioning value of precomputation, with the corresponding motor-driven valve action of in good time control, by the good proportion ingredient of precomputation, the PLC controller will automatically define batch number to the material that adds and follow the tracks of simultaneously;
(5), the furnace charge of described batch of step (4) slags tap through tapping a blast furnace after the regular hour melting, to this batch iron and slag automatic sampling, sample is automatically delivered to on-line detector and is analyzed its signal component value after cooling, sample chemical examination signal component value is transferred to industrial computer;
(6), the application program in the industrial computer will be found out budget proportioning value and the slag charge signal component value that is stored in computer according to batch number, budget slag charge signal component value and actual value are compared, with reference to this fiducial value, some empirical parameter of raw material ratio formula is adjusted, so that the estimated value of lower batch of proportioning and slag charge composition more approaches actual value, and upgrade the value that originally was 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451164A (en) * | 2014-12-15 | 2015-03-25 | 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 |
| CN105861817A (en) * | 2016-05-18 | 2016-08-17 | 武汉钢铁股份有限公司 | Method for researching flux distribution state in sintered mixed granulates |
| 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 |
| CN113718109A (en) * | 2021-09-01 | 2021-11-30 | 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451164A (en) * | 2014-12-15 | 2015-03-25 | 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 |
| CN105861817A (en) * | 2016-05-18 | 2016-08-17 | 武汉钢铁股份有限公司 | Method for researching flux distribution state in sintered mixed granulates |
| 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 |
| CN113718109A (en) * | 2021-09-01 | 2021-11-30 | 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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Granted publication date: 20140806 Termination date: 20161126 |