CN106155137A - A kind of sintering end point temperature automatic control method - Google Patents
A kind of sintering end point temperature automatic control method Download PDFInfo
- Publication number
- CN106155137A CN106155137A CN201610737251.7A CN201610737251A CN106155137A CN 106155137 A CN106155137 A CN 106155137A CN 201610737251 A CN201610737251 A CN 201610737251A CN 106155137 A CN106155137 A CN 106155137A
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- CN
- China
- Prior art keywords
- sintering
- bellows
- machine
- flex point
- egt
- Prior art date
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
Abstract
A kind of sintering end point temperature automatic control method, finds out EGT and sintering end point temperature and has the bellows of dependency, and these bellows are referred to as flex point bellows；Determine the linear relationship between flex point box temperature and sintering machine machine speed, by Correlative data analysis is processed, set up the linear relationship between flex point bellows EGT and sintering machine machine speed；Sintering machine machine speed is set as that variable Y, flex point bellows EGT are set as that variable X, sintering machine machine speed and flex point bellows EGT exist following linear relationship: Y=0.0047X+1.2615；According to the linear relationship between flex point bellows EGT and the sintering machine machine speed obtained by step 2, by parameters such as computer settings flex point box temperature parameter, sintering machine machine speed adjustment amplitudes.After this application technology comes into operation, sintering machine supervisor's temperature, negative regulation improve；After application technology comes into operation, return circulating load in sintering machine and effectively reduce.
Description
Technical field
The application relates to SINTERING TECHNOLOGY field, particularly relates to a kind of sintering end point temperature automatic control method.
Background technology
Wine steel 1#, 2# sintering machine is founded the factory the seventies operation, has the most run close to more than 40 years, master-plan flow process
Long, automatic control level is relatively low, and the core of SINTERING PRODUCTION controls parameter " sintering end point ", still uses and manually observes plant-tail section
Grill thoroughly situation, adjust relevant parameter and be controlled by, cause sintering end point temperature control be not sufficiently stable, affect sinter quality and
The steady progression of technical-economic index.
Studying according to sintering theory, sintering preheating zone bottoms out a position and bottoms out a position with combustion zone and can occur to become in the same direction
Change, i.e. bottom out a situation of change for bellows EGT by sintering preheating zone, the position of anticipation sintering end point can be shifted to an earlier date, it is achieved
Relevant parameter coordinated signals, it is ensured that sintering end point is stable.
Summary of the invention
The present invention is by providing a kind of sintering end point Temperature Automatic Control Technology to reach stability contorting sintering end point temperature
Purpose.
The present invention adopts the following technical scheme that and realizes:
A kind of sintering end point Temperature Automatic Control Technology, comprises the following steps:
Step one: find out EGT and sintering end point temperature and there are the bellows of dependency: according to sintering machine actual production apoplexy
Case temperature curve distribution trend figure, finds out sintering preheating zone and bottoms out a bellows, and these bellows i.e. have relevant to sintering end point temperature
Property, referred to as flex point bellows；
Step 2: determine the linear relationship between flex point box temperature and sintering machine machine speed: in sintering end point temperature normal condition
Under, by Correlative data analysis is processed, set up the linear relationship between flex point bellows EGT and sintering machine machine speed；Sintering
Machine machine speed is set as that variable Y, flex point bellows EGT are set as that variable X, sintering machine machine speed are deposited with flex point bellows EGT
At following linear relationship: Y=0.0047X+1.2615；
Step 3: according to the linear relationship between flex point bellows EGT and the sintering machine machine speed obtained by step 2, pass through
The parameters such as computer settings flex point box temperature parameter, sintering machine machine speed adjustment amplitude.
The Advantageous Effects of the present invention: after application technology comes into operation, sintering machine supervisor's temperature, negative regulation improve；Should
After coming into operation by technology, return circulating load in sintering machine and effectively reduce.
Accompanying drawing explanation
Fig. 1 is box temperature curve distribution trendgram；
Fig. 2 is prior art temperature, negative pressure curvilinear trend figure；
Fig. 3 is temperature of the present invention, negative pressure curvilinear trend figure.
Detailed description of the invention
A kind of sintering end point Temperature Automatic Control Technology, comprises the following steps:
Step one: find out EGT and sintering end point temperature and there are the bellows of dependency: according to sintering machine actual production apoplexy
Case temperature curve distribution trend figure, finds out sintering preheating zone and bottoms out a bellows, and these bellows i.e. have relevant to sintering end point temperature
Property, referred to as flex point bellows；Wine steel 1#, 2# sintering machine configures 20 typhoon casees altogether, gathers these 20 box temperature and draws sintering process
Bellows EGT schematic diagram, finds that 14# bellows are that temperature rising point is flex point bellows, and inflection temperature is reflected as being responsible for temperature
The change of about 6min, 14# bellows EGT and sintering end point change in location is needed to tend to basically identical；
Step 2: determine the linear relationship between flex point box temperature and sintering machine machine speed: in sintering end point temperature normal condition
Under, by Correlative data analysis is processed, set up the linear relationship between flex point bellows EGT and sintering machine machine speed；Pass through
Data statistic analysis, determines that fritting machine waste gas temperature controls standard when 110 ± 10 DEG C, and sintering end point temperature controls normal；With
Based on this, it is analyzed processing by field test and collection related data, sets up 14# bellows EGT and sintering
Corresponding relation between machine machine speed, is processed by fuzzy technology, it is achieved 14# bellows EGT and sintering machine machine speed chain from
Dynamic control；Supervisor's temperature 110 DEG C is the sintering end point temperature of each factor of production stable period, selects to determine machine based on this
Speed and the linear relationship of 14# bellows EGT；Seeing table 1, flex point bellows EGT rises, sintering machine machine speed rises, and turns
Point bellows EGT declines, sintering machine machine speed reduces；Machine speed is 60 groups with the upper, middle and lower limit value of 14# bellows EGT
The meansigma methods of data acquisition；Sintering machine machine speed is set as that variable Y, 14# bellows EGT are set as variable X, sintering machine machine
There is following linear relationship: Y=0.0047X+1.2615 in speed and 14# bellows EGT, sintering machine machine speed is with 14# bellows waste gas
Variations in temperature minimum adjustment amplitude is 0.005m/min.
Table 1: machine speed, flex point bellows EGT corresponding relation list
Step 3: according to the linear relationship between flex point bellows EGT and the sintering machine machine speed obtained by step 2, pass through
The parameters such as computer settings flex point box temperature parameter, sintering machine machine speed adjustment amplitude；Bellows EGT 59.26-82.48
DEG C, sintering machine machine speed 1.54-1.65m/s；Determine that online production supervisor's temperature controls Appropriate at 110 DEG C by long-term practice.
After program is reached the standard grade, stability of the production process is greatly improved；Be mainly manifested in supervisor's temperature, supervisor's negative regulation becomes
Good, interior regurgitation volume declines, and fuel controls more stable.Come into operation before and after's temperature, negative pressure curvilinear trend figure from Fig. 2, Fig. 3 automatic program
It can be seen that sintering machine supervisor's temperature, negative regulation improve, production process tends towards stability.
Claims (1)
1. a sintering end point temperature automatic control method, it is characterised in that comprise the following steps:
Step one: find out EGT and sintering end point temperature and there are the bellows of dependency: according to sintering machine actual production apoplexy
Case temperature curve distribution trend figure, finds out sintering preheating zone and bottoms out a bellows, and these bellows i.e. have relevant to sintering end point temperature
Property, referred to as flex point bellows；
Step 2: determine the linear relationship between flex point box temperature and sintering machine machine speed: in sintering end point temperature normal condition
Under, by Correlative data analysis is processed, set up the linear relationship between flex point bellows EGT and sintering machine machine speed；Sintering
Machine machine speed is set as that variable Y, flex point bellows EGT are set as that variable X, sintering machine machine speed are deposited with flex point bellows EGT
At following linear relationship: Y=0.0047X+1.2615；
Step 3: according to the linear relationship between flex point bellows EGT and the sintering machine machine speed obtained by step 2, pass through
Computer settings flex point box temperature parameter, sintering machine machine speed adjust range parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610737251.7A CN106155137A (en) | 2016-08-29 | 2016-08-29 | A kind of sintering end point temperature automatic control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610737251.7A CN106155137A (en) | 2016-08-29 | 2016-08-29 | A kind of sintering end point temperature automatic control method |
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| Publication Number | Publication Date |
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| CN106155137A true CN106155137A (en) | 2016-11-23 |
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| CN201610737251.7A Pending CN106155137A (en) | 2016-08-29 | 2016-08-29 | A kind of sintering end point temperature automatic control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106636616A (en) * | 2016-12-20 | 2017-05-10 | 中国地质大学（武汉） | Sintered ore yield prediction method based on bellows waste gas temperature |
| CN109341351A (en) * | 2018-10-24 | 2019-02-15 | 上海宝钢节能环保技术有限公司 | A kind of frequency conversion intelligent power-saving control method for steel works sintering main exhaust fan |
| CN110595208A (en) * | 2019-10-21 | 2019-12-20 | 马鞍山钢铁股份有限公司 | Method for controlling sintering end point |
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| JPH06330191A (en) * | 1993-05-26 | 1994-11-29 | Nippon Steel Corp | Operation of sintering in negative pressure |
| JP2005187841A (en) * | 2003-12-24 | 2005-07-14 | Jfe Steel Kk | Method for controlling pallet speed in sintering machine |
| CN101441444A (en) * | 2008-09-18 | 2009-05-27 | 中冶长天国际工程有限责任公司 | Sintering status control method in sintering process |
| CN103589862A (en) * | 2013-11-05 | 2014-02-19 | 首钢总公司 | Optimized sintering batching method |
| CN105039685A (en) * | 2015-08-03 | 2015-11-11 | 中南大学 | Method for soft measurement of iron ore sintering process state |
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2016
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Patent Citations (5)
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| JPH06330191A (en) * | 1993-05-26 | 1994-11-29 | Nippon Steel Corp | Operation of sintering in negative pressure |
| JP2005187841A (en) * | 2003-12-24 | 2005-07-14 | Jfe Steel Kk | Method for controlling pallet speed in sintering machine |
| CN101441444A (en) * | 2008-09-18 | 2009-05-27 | 中冶长天国际工程有限责任公司 | Sintering status control method in sintering process |
| CN103589862A (en) * | 2013-11-05 | 2014-02-19 | 首钢总公司 | Optimized sintering batching method |
| CN105039685A (en) * | 2015-08-03 | 2015-11-11 | 中南大学 | Method for soft measurement of iron ore sintering process state |
Non-Patent Citations (3)
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| 刘增环 等: ""烧结终点的优化控制"", 《自动化与仪表》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106636616A (en) * | 2016-12-20 | 2017-05-10 | 中国地质大学（武汉） | Sintered ore yield prediction method based on bellows waste gas temperature |
| CN109341351A (en) * | 2018-10-24 | 2019-02-15 | 上海宝钢节能环保技术有限公司 | A kind of frequency conversion intelligent power-saving control method for steel works sintering main exhaust fan |
| CN110595208A (en) * | 2019-10-21 | 2019-12-20 | 马鞍山钢铁股份有限公司 | Method for controlling sintering end point |
| CN110595208B (en) * | 2019-10-21 | 2021-02-02 | 马鞍山钢铁股份有限公司 | Method for controlling sintering end point |
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Application publication date: 20161123 |