CN1845022A - Chemical component prediction system with stepped control - Google Patents
Chemical component prediction system with stepped control Download PDFInfo
- Publication number
- CN1845022A CN1845022A CN 200610024073 CN200610024073A CN1845022A CN 1845022 A CN1845022 A CN 1845022A CN 200610024073 CN200610024073 CN 200610024073 CN 200610024073 A CN200610024073 A CN 200610024073A CN 1845022 A CN1845022 A CN 1845022A
- Authority
- CN
- China
- Prior art keywords
- basicity
- sio
- control
- adjust
- rule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a graded control sinter chemical component prediction system, which according to the complexity of sinter process and present control state, uses graded control strategy. It is mainly formed by a man-machine interface, a decide layer, a execute layer, and a device control layer. Wherein, the execute layer comprises a knowledge base, a inference machine, comparing sequencing, accuracy calculating, dynamic assembling, and time harmonizer; the execute layer comprises program explain, control strategy (program request), failure recover (program request again), database, material balance system, and sinter point control system; and the device control grade is formed by automatic control system and a data processing system. The component control is the purpose of sinter process control. The invention uses physical-chemical reaction mode and the experience inference to build a sinter mine chemical component control system, based on quick strategy.
Description
Technical field
The present invention relates in the big system of a kind of metallurgical industry, the mode that adopts physical and chemical reaction model and experience inference to combine, realization is polynary on stage construction estimates and controls, and the graded control sintering deposit chemical component prediction system of foundation belongs to metallurgical big system automatic control technology field.
Background technology
The technological process that sintering in the metallurgy is a large time delay, become when slow was finished about needs about two hours from the proportioning room to the sintering, in this course, and the chemical constitution in the sintering deposit (TFe, R, SiO
2, CaO, FeO etc.) change both dynamically, influence each other again.Chemical Composition Control gets the fine or not height that indicates the sintering system controlling level.
Eighties of last century the eighties Nippon Steel Corporation has set up autoregression and multivariate regression model prediction and control sintering deposit chemical constitution (CaO, SiO at the little Cang Chang of SUMITOMO CHEMICAL metal company
2, MgO, FeO) system.Fairly simple for the form that makes model, be convenient to calculate, satisfy requirement of real-time control, the time series modeling method is adopted in research, sets up the linear input-output model of discrete form, i.e. SISO controlled autoregressive model (Car model).On this basis, but song mountain No. 4 sintering machines set up MISO again and be with external observation variable controlled autoregressive model (CarX model).In China, Central South University and Anshan iron and steel plant cooperation have been developed chemical constitution advanced prediction model in 1993 for No. 3 sintering machines of Anshan iron and steel plant, model adopt System Discrimination methods analyst FeO content in the sintering deposit and TFe, the SiO in the sintering deposit
2, the relation between the product compositions such as CaO, MgO, and FeO, TFe, SiO in 2 hours in advance forecast sintering deposits
2, CaO composition.Yet, past data is carried out on the basis of analytic induction, goes to disclose the relation between chemical constitution and some control variable owing to can only be based upon by computer equipment performance limitations at that time, model.Therefore, model can't carry out the on-line prediction analysis.Subsequently, group of Nangang, Taiyuan Iron and Steel Co., Handan iron company have developed sintering deposit chemical constitution forecasting model in succession.Wherein " the BP neural network model forecasts sinter quality " of developing jointly with Kunming University of Science and Technology and Kunming Iron and Steel Works is the best, and this model is with the TFe in the compound, SiO
2, CaO is input quantity, with the TFe in the sintering deposit, SiO
2, basicity R is output quantity, set up 3 * 5 * 3 rank neural networks.It utilizes variable step and the method that adds factor of momentum to realize real-time estimate, and the weights correction algorithm of network is
System's fast convergence rate.But,, exist the local minimum and low deficiency of generalization ability because this system is based upon on the BP network foundation.Especially, in influences at random such as system are interfered, when the real time data sample of system surmounted training sample, system was difficult to realize global optimization control.In addition, after Australian Kan Baili Meng Joo doctor Er of university of country has also studied sintering process large time delay and complicacy in 2000, proposed to set up sintering deposit composition fuzzy neural network model respectively with decoupling method.,, be difficult in and realize on the aspect polynaryly estimating and controlling because sintering process is that solid phase, liquid and gas interpenetrate and interactional process though but this model on-line prediction sintering deposit respectively becomes score value.In order to overcome the deficiency that above sintering deposit chemical component prediction control system exists, the present invention's research and the sintering deposit chemical component prediction system that provides a kind of graded to control.
Summary of the invention
Graded control sintering deposit chemical component prediction system of the present invention, to be controlled to the purpose that is divided into sintering process control, the mode that adopts physical and chemical reaction model and experience inference to combine, realization is polynary on stage construction estimates and controls, thereby sets up the Controlling of Sinter Chemical Composition system based on high-speed decision.
Graded control sintering deposit chemical component prediction system of the present invention mainly is made up of man-machine interface, decision-making portion, execution portion and device control level.Wherein, decision-making portion by knowledge base, reasoning storehouse, relatively ordering and refinement, dynamic combined and time coordination device constitute; Execution portion is made of failure recovery (the weight-normality request of drawing), control strategy (planning request), planning explanation, material balance system and burning point control system and database; The device control level is made of automatic control system and data handling system.
Sintering in the metallurgical industry is that the ground flux with breeze and fuel powder and appropriate amount adds mixing behind the water, on special agglomerating plant through high-temperature ignition, forced ventilation, make contained fuel combustion, cause the compound partial melting, form irregular bulk after the cooling, i.e. sintering deposit.In modern sintering deposit was produced, continuous pallettype sintering machine was most widely used.The chassis that sintering machine is made of a plurality of grid sections is formed the chain-belt type structure, does circulating motion under sprocket wheel drives.When chassis runs to upwards the position, the compound of packing into and having worked good, high-temperature ignition immediately.At this moment, because chassis bottom bellows suction function, the bed of material sucks air from top to bottom makes burning continue to carry out.When chassis moves to tail, sintering process is finished.Red-hot finished product sintering deposit is poured into naturally in fragmentation, the screening system and forms product.
The equilibrium relation of each material of sintering process is as follows:
New raw material=even ore deposit+agglomerated powder+mini-pellets+auxiliary material
Compound (doing)=new raw material+coke breeze+return mine
Compound (wetting)=compound (doing)+fresh water (FW)
Sinter cake=compound (wetting)+grate-layer material-scaling loss
=finished product sintering deposit+return mine+grate-layer material
Finished product sintering deposit granularity: 5 ~ 50mm
Grate-layer material granularity: 10 ~ 20mm
Granularity :-5mm returns mine
Agglomerated powder (the BF sieve down) :-5mm
The finished product sintering deposit according to chemical composition can be divided into several big classes of natural alkalinity, self-fluxing nature and superhigh-alkalinity.
Do not add flux in the natural alkalinity assignment material, according to the mineral composition of original breeze composition decision final products.
Self-fluxed sinter: the basicity by the blast-furnace slag requirement is allocated an amount of flux into according to ore and fuel.Sintering deposit itself need not add the flux slag making.
High basicity sinter is the sintering deposit of the basicity of sintering deposit when being higher than blast-furnace slag basicity.Many performances that can improvement itself after sinter basicity improves, as intensity, reductibility etc.In superhigh-alkalinity sintered ore, when in and the acid slag making material of coke when still residue being arranged, often must be with addition of acid material, as natural ore deposits such as pellets.
The finished product sinter quality requires to mainly contain (1) iron-holder height, to reduce a ton scum amount, be generally the deduction alkaline matter after, the iron amount contains 60% approximately; (2) Well-recovered, the content of FeO is less than 10% in the sintering deposit; (3) intensity is enough, and as tumbler index＞6.33 millimeter, intensity should be greater than 78%, and tumbler index＜0.5 millimeter, intensity＜5%; (4) epigranular.
The physicochemical characteristic of sintering deposit is as follows:
(1) chemical constitution
CaO/SiO2:1.55 ~ 1.75 times
TFe：56~57.5％
SiO2：5.5~6.3％
Al2O3：＜2.1％
FeO：6~8％
(2) physical property
RDI (the reduction degradation index＜3mm)＜40%
TI (tumbler index＞10mm)＞65%
Contain the powder rate (＜5mm)＜5%
The influence of 1 sinter basicity
Different basicity can draw from test findings the influence of usage factor and sintered ore rotary drum strength.As sintering deposit SiO
2Content one regularly improves with basicity, and usage factor is remarkable ascendant trend, and vertical sintering speed is also obviously accelerated (bringing up to 21.47 millimeters/minute by 19.34 millimeters/minute).Basicity rises to 2.00 from 1.6, and sintered ore rotary drum strength brings up to 64% from 54.67%, is greatly improved.This mainly is because be furnished with more CaO in the high basicity sinter raw material, and bed permeability is improved greatly, and the oxidizing atmosphere of sintering process strengthens, and impels that amount of liquid phase is corresponding to be increased, and generates more iron.Simultaneously, improve because sintering finished rate raises with basicity, the also corresponding decline of solid burnup is reduced to 51.21 kilograms/ton by 52.39 kilograms/ton.But after basicity brought up to 2.00 by 1.6, grade of sinter reduced to 56.46% from 57.37%.
In sinter basicity adjustment management, use computing formula:
Adjusted.In the formula, δ---adjust the number percent charge ratio.A---the average SiO of basicity desired value B---average basicity value (reality) D---
2% (reality) C---lime stone CaO% adjustment amount---
In fact, sinter basicity is the ratio of calcium oxide and dioxide-containing silica in the sintering deposit, and basicity determines jointly that by these two compositions its desired value is 1.7.It is with interval foundation as division, is divided into several intervals altogether.In the method for adjustment of basicity, the sampling point sampling period every two hours once, more than or equal to 1.7+0.05 or smaller or equal to 1.7-0.05 this when interval, this situation is quite bad, should change as early as possible, as long as just there is a sampled point to drop on this interval, will adjust, adjustment amount is at once
The purpose of doing big like this adjustment amount adjustment is to make basicity value and desired value close as early as possible.More than outside this situation belongs between directorial area.In between directorial area, also be divided into several minizones, and also can make corresponding adjustment with regard to each interval situation.As first interval between directorial area is basicity value 1.7-0.02 ~ 1.7 or 1.7 ~ 1.7+0.02.This interval, basicity value is more satisfactory, and method of adjustment is, and is interval when 4 sampling points occurring at this continuously, adjusts again, and adjustment amount is
Just, when preceding 3 sampling points occurred, the value stabilization of basicity in the sintering deposit, and write down the information of these 3 points was pointed out now when the 4th, goes to adjust again.Second interval is that basicity is at 1.7-0.03 ~ 1.7-0.02 or in 1.7+0.02 ~ 1.7+0.03 scope, the basicity value of sampling point is when this is interval, its situation than the situation in last interval a little more seriously, at this moment, method of adjustment is, adjust when having continuous 3 sampling points to appear at this interval, adjustment amount is again
Just, when preceding two sampling points appear at this interval, wait for the situation of next point, if also drop on this interval, will adjust, so that the basicity value of sintering deposit is close to desired value.Also have an interval be basicity at 1.7-0.05 ~ 1.7-0.03 or 1.7+0.03 ~ 1.7+0.05, this interval is serious situation within the range of management, so, at this moment,, should adjust as long as there is a sampling point to drop on this interval at once, adjustment amount is
After adjustment amount has been arranged, just should utilize concrete ore as adjusting raw material.What adjustment basicity was used is the lime stone raw material, contains this composition of CaO in the lime stone, by the proportioning that changes it basicity value is changed.Because basicity is CaO and SiO
2Ratio, basicity is changed according to desirable value, just must analyze CaO and SiO simultaneously
2Value.When independent consideration basicity, fixing SiO
2Value, only change the CaO composition, just can control basicity fully theoretically.But sintering is a large time delay process, and therefore some out of contior practical factors that also mixed simultaneously, can only more accurately be controlled basicity in the actual sintered, can not fully accurately go to control it.Also can draw such conclusion from adjusting formula, what finally calculate is to increase or reduce the lime stone proportioning.Certainly, the scope that these intervals covered has comprised all probable values, does not allow any possibility omit, and has promptly guaranteed interval integrality.
2SiO
2The influence of content
With SiO in the sintering deposit
2The increase of content, usage factor slightly raises, and intensity index improves.Work as SiO
2Content brings up at 5.38% o'clock from 5.04%, and usage factor is by 1.33 tons/(rice
2Hour) rise to 1.44t/ (rice
2Hour), tumbler index brings up to 60.73% from 58.40%, and yield rate also brings up to 76.17% by 74.66%.On the contrary, SiO
2When content was low, the sintering deposit amount of liquid phase was less, the sintering belt attenuation, and vertical sintering speed speeds, and sinter strength is with regard to variation.
As seen, basicity and SiO
2Between an optimum value is arranged, only coordinate their relation, just can obtain optimal state.Analyze SiO
2Situation, it is as follows to adjust computing formula:
In the formula: adjustment amount
Sintering deposit contains SiO
2The desired value of number percent is 5.6%.During adjustment, the sampling point sampling period every two hours once.Similar basicity management method, the by stages is adjusted.In the interval smaller or equal to (5.6-0.24) % or in more than or equal to (5.6+0.24) %, belong between directorial area outside.Such sampling point is very undesirable, and situation is serious, as long as there is a sampling point to drop on this interval, just must adjust at once, and adjustment amount is
In between directorial area, also be divided into several minizones, also there is corresponding adjustment amount each minizone.First interval contains SiO for sintering deposit
2Number percent 5.6% ~ (5.6+0.08) % or (5.6-0.08) % ~ 5.6%.When sampling point drops on this interval, illustrate that sintering deposit contains SiO
2Number percent more stable.Method of adjustment is, has the value of 4 sampling points to drop on this when interval, just adjustment, adjustment amount continuously
Second interval contains SiO for sintering deposit
2Number percent is % of (5.6+0.08) % ~ (5.6+0.16) or (5.6-0.16) % of % ~ (5.6-0.08), in this interval, obviously more farther than the value in a last interval from desired value, just serious by contrast, method of adjustment is to have the value of 3 points to drop on this when interval continuously, just adjust adjustment amount
The 3rd interval contains SiO for sintering deposit
2% of number percent (5.6+0.16) % ~ (5.6+0.24) or (5.6-0.24) % of % ~ (5.6-0.16), this interval is serious situation in the range of management, so, at this moment, as long as have a sampling point to drop on this interval, just should adjust adjustment amount at once
After concrete adjustment amount is arranged, should convert thereof into exercisable raw material adjustment.Promptly change SiO in the sintering deposit by adding or reducing silica sand
2Content.
The management of 3 sintering mine FeOs
FeO:y
1, y
2, y
3, y
4, y
5(management standard: 5.6%-6.6%)
The management of 4 sintered ore rotary drum strengths
Tumbler index TI:x
1, x
2, x
3, x
4, x
5(management standard: 71%-73%)
The management of 5 sintering deposit reduction and pulverization ratios
Sintering deposit reduction and pulverization ratio: z
1, z
2(management standard: 32.5%-38.5%)
More than Guan Li basic step is:
● determine charge ratio, calculate the theoretical value of proportioning according to index;
● calculate the siccative amount of various materials, calculate Fe in the raw material successively according to the chemical constitution of siccative amount and raw material, CaO, SiO2, the content that waits carries out 100% adjustment;
● calculate the principal ingredient content of various materials, carry out suitable proportioning adjustment according to laboratory values again;
● the chemical constitution in the sintering deposit is predicted, adjusted repeatedly then.
The base stock table
| The raw material name of an article | Do proportioning | ?TFe | SiO2 | CaO | MgO | |
| The mixing ore deposit | ||||||
| Lime stone | ||||||
| Rauhkalk | ||||||
| Unslaked lime | ||||||
Sinter quality and charge ratio table
| Lot number | Sinter quality | Charge ratio | |||||||||||||||
| ?TFe | FeO | SiO2 | CaO | MgO | Al2O3 | P2O5 | S | R | Ti | Time | Even ore deposit | Lime stone | Give birth to ash | Rauhkalk | Coke powder | Return mine | |
In the table,
Raw material is done proportioning=wet proportioning * (1-water content);
Burn residual=dried proportioning * (1-scaling loss);
Each material composition in the raw material=dried proportioning * material composition content;
The burning of sintering deposit composition theoretical value=each material composition/total is residual;
CaO
Actual valueMean value in=four batches or five batches
△ CaO=(SiO2
Maximum* R
Less+ SiO2
Minimum* R
Bigger)/2-CaO
Actual value
Or average.The mean value of promptly getting SiO2 carries out the adjustment calculating of CaO.
△ CaO * burning is residual=do the △ CaO of proportioning in the raw material
Do
△ CaO
DoThe content of CaO in the/lime stone=△ CaCO3
△ CaCO3/ (1-water content)=/the wet proportioning adjustment amount of CaCO3.
CaCO3
Present proportioning=△ CaCO3+CaCO3
Proportioning originally
Even ore deposit
Present proportioning=even original wet proportioning-△ the CaCO3 in ore deposit.
When giving birth to grey proportioning change, give birth to the ash change for one and be equivalent to 1.5 lime stones changes, and the CaO content of giving birth in the ash is zero, increase when giving birth to grey proportioning and will from lime stone, deduct corresponding many CaO.
The experimental formula that the proportioning of returning mine is adjusted is as follows:
Cloud powder proportioning adjusts=original cloud powder proportioning * (coke ratio that 100-25-is original)/(coke ratio that 100-28-is present) and define K=(coke ratio that 100-25-is original)/(coke ratio that 100-28-is present) (wherein coke ratio is that experience is given).In like manner, the proportioning of lime stone then is to add present conversion proportioning afterwards by original proportioning.Coke ratio is adjusted empirical rule:
The coke ratio of returning mine
± 5% ± 0.1% coke ratio
±10％ ±0.15％
±15％ ±0.2％
±20％ ±0.25％
Controlling schemes is:
According to the complicacy of sintering process, graded control sintering deposit chemical component prediction system of the present invention adopts the graded control strategy, divides decision-making level, execution level, device control layer.Wherein, decision-making level comprises knowledge base, inference machine, relatively ordering, refinement, dynamic combined, time coordination device.Execution level comprises that planning explanation, control strategy, failure recovery, database, planning request and weight-normality draw request, material balance system, burning point control system.The device control level is made of automatic control system and data handling system.
Composition Control is the purpose of control sintering process.Characteristics of the present invention are the modes that adopt physical and chemical reaction model and experience inference to combine, and set up the Controlling of Sinter Chemical Composition system based on high-speed decision.System sets up rule base and inference mechanism according to sintering physical and chemical parameter, operating parameter and index parameter.The former piece of rule is the result of laboratory test according to sintering deposit, adopts major component system method to realize element extraction, gets physical parameter (RDI, M.S) and chemical constitution (SiO usually
2, CaO, TFe, R, FeO) etc. as one group of fact; Consequent is a series of control strategies, and its regular citation form is IF (U (t)＞A
0AndU (t-1)＞A
1And ... .U (t-n)＞An → y=b.Inference mechanism is mainly derived from physical and chemical reaction process, control flow and section chief's instruction.After obtaining the former piece parameter, the control law that is complementary with former piece in the search rule storehouse if the match is successful, and in system scope, is just finished a series of control actions of this rule, and is obtained corresponding control strategies.Searching method adopts " composite optimization search procedure " in real time, and the node that satisfies condition is at first enabled earlier.When similar various element occurring (as SiO
2With FeO etc.) when influencing each other, adopt the major component principle of priority.Time coordination, device was as the embedded parts of planning department, carried out the Real-Time Scheduling program, the distribution of coordinated time and resource between several objects.After system forms control strategy, promptly send into execution portion, execution portion plans two other important control system of explaining and sending into sintering process immediately: material balance system and burning point control system.If planning failure or control strategy are carried out problems such as overtime, execution portion can produce the planning request and weight-normality is drawn request.
1 rule generates
● the coke breeze adjustment
1.IF y
1＞=6.9%﹠amp; z
1, z
2All＜=32.5%, THEN coke breeze proportioning-0.1%
2.IF y
1∈ [6.6%, 6.9%] ﹠amp; z
1, z
2All＜=32.5%, THEN coke breeze proportioning-0.08%
3.IF[y ', y " ∈ (y
1, y
2, y
3)
Max.2] ∈ [6.4%, 6.6%] ﹠amp; z
1, z
2All＜=32.5%, THEN coke breeze proportioning-0.07%
4.IF y
1∈ [6.1%, 6.4%] ﹠amp; z
1, z
2All＜=32.5%, THEN coke breeze proportioning-0.05%
Wherein, the method that does not adopt addition to be averaged to the adjustment amount of coke breeze, but, when several variablees are consistent to the adjustment direction demand of coke breeze, the stack of coke breeze adjustment amount; During contradiction, artificially determine an amount.
5.IF y
1＞=6.9%﹠amp; z
1, z
2∈ (32.5%, 37.5%), THEN coke breeze proportioning-0.05%
6.IF y
1∈ [6.6%, 6.9%] ﹠amp; z
1, z
2∈ (32.5%, 37.5%), THEN coke breeze proportioning-0.03%
7.IF[y ', y " ∈ (y
1, y
2, y
3)
Max.2] ∈ [6.4%, 6.6%] ﹠amp; z
1, z
2∈ (32.5%, 37.5%), THEN coke breeze proportioning-0.02%
8.IF y
1, y
2, y
3, y
4, y
5Equal ∈ [6.1%, 6.4%] ﹠amp; z
1, z
2∈ (32.5%, 37.5%), the above 5-8 rule of THEN coke breeze proportioning-0.02% RDI is in the normal range, needn't adjust, and presses the standard adjustment of FeO.
9.IF y
1＜=5.3%﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN coke breeze proportioning+0.1%
10.IF y
1∈ (5.3%, 5.6%) ﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN coke breeze proportioning+0.08%
11.IF[y ', y " ∈ (y
1, y
2, y
3)
Min.2] ∈ (5.6%, 5.8%) ﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN coke breeze proportioning+0.07%
12.IF y
1∈ (5.8%, 6.1%] ﹠amp; z
1, z
2∈ (37.5%, 38.5%), the above 4 kinds of situations of THEN coke breeze proportioning+0.05% are to the adjusting direction demand unanimity of coke breeze, coke breeze ↑ RDI ↓ FeO ↑
13.IF y
1＜=5.3%﹠amp; z
1＞=38.5%, THEN coke breeze proportioning+0.1%
14.IF y
1∈ (5.3%, 5.6%) ﹠amp; z
1＞=38.5%, THEN coke breeze proportioning+0.08%
15.IF[y5, y " and ∈ (y
1, y
2, y
3)
Min.2] ∈ (5.6%, 5.8%) ﹠amp; z
1＞=38.5%, THEN coke breeze proportioning+0.07%
16.IF y
1∈ (5.8%, 6.1%) ﹠amp; z
1＞=38.5%, THEN coke breeze proportioning+0.05% coke breeze is regulated direction demand unanimity, but the situation of coke breeze ↑ RDI ↓ FeO ↑ RDI will be more serious in 13-16 bar rule.
17.IF y
1＜=5.3%﹠amp; z
1, z
2∈ (32.5%, 37.5%), THEN coke breeze proportioning+0.05%
18.IF y
1∈ (5.3%, 5.6%) ﹠amp; z
1, z
2∈ (32.5%, 37.5%), THEN coke breeze proportioning+0.03%
19.IF[y ', y " ∈ (y
1, y
2, y
3)
Min.2] ∈ (5.6%, 5.8%) ﹠amp; z
1, z
2∈ (32.5%, 37.5%), THEN coke breeze proportioning+0.02%
20.IF y
1∈ (5.8%, 6.1%) ﹠amp; z
1, z
2∈ (32.5%, 37.5%), the above 17-20 rule of THEN coke breeze proportioning+0.02% RDI is in the normal range, needn't adjust, and presses the standard adjustment of FeO.
21.IF y
1＞=6.9%﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN is FeOy relatively, RDIy
Annotate: TIy=(△ TI/TI
Target) * 100%;
FeOy=(△ FeO/FeO
Target) * 100%;
RDIy=(△ RDI/RDI
Target) * 100%;
Wherein: △ TIy=|x
1-TI
Target|;
△ FeOy=|y
1-FeO
Target|;
△ RDIy=|z
1-RDI
Target|;
If sampled value more than 2 is arranged, the mean value of difference of then getting they and desired value is as △
Because the adding of barrate strength makes rule be increased to 64 from 32, complexity increases, but in fact TI also only regulates (fine tuning) at 71%-73% (in the management objectives scope) with coke breeze, the amount bigger (0.05%-0.1%) of regulating, can not coordinate mutually with RDI and FeO, when TI is in 71%-73%, will not regulate, with transferring chassis speed to solve.Yet, because of being in, TI uses chassis speed control band, and two other variable just can not get regulating, and the 3rd condition in the rule is not being met.Solution is, fully two variablees of TI and other separated, and regulates without coke breeze for TI, in the 71%-73% scope, do not regulate, and in all the other scopes, regulate with chassis speed, and with the consideration of putting together of other two variablees.Be revised as:
21.IF y
1＞=6.9%﹠amp; z
1＞=38.5%, THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy-5%, THEN coke breeze proportioning-0.05%
IF FeOy＜RDIy-5%, THEN coke breeze proportioning+0.05%
22.IF y
1∈ [6.6%, 6.9%] ﹠amp; z
1＞=38.5%, THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy, THEN coke breeze proportioning-0.03%
IF FeOy＜RDIy, THEN coke breeze proportioning+0.03%
23.IF[y ', y " ∈ (y
1, y
2, y
3)
Min.2] ∈ [6.3%, 6.6%] ﹠amp; z
1＞=38.5%, THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy-1%, THEN coke breeze proportioning-0.02%
IF FeOy＜RDIy-1%, THEN coke breeze proportioning+0.02%
24.IF y
1∈ [6.1%, 6.3%] ﹠amp; z
1＞=38.5%, THEN coke breeze proportioning+0.02%
25.IF y
1＞=6.9%﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN coke breeze proportioning-0.05%
26.IF y
1∈ [6.6%, 6.9%] ﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN coke breeze proportioning-0.03%
27.IF[y ', y " ∈ (y
1, y
2, y
3)
Min.2] ∈ [6.3%, 6.6%] ﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy-2%, THEN coke breeze proportioning-0.02%
IF FeOy＜RDIy-2%, THEN coke breeze proportioning+0.02%
28.IF y
1∈ [6.1%, 6.3%] ﹠amp; z
1, z
2∈ (37.5%, 38.5%), THEN coke breeze proportioning+0.02%
29.IF y
1＜=5.3%﹠amp; z
1＜=32.5%, THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy-5%, THEN coke breeze proportioning+0.05%
IF FeOy＜RDIy-5%, THEN coke breeze proportioning-0.05%
30.IF y
1∈ [5.3%, 5.6%] ﹠amp; z
1＜=32.5%, THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy, THEN coke breeze proportioning+0.03%
IF FeOy＜RDIy, THEN coke breeze proportioning-0.03%
31.IF[y ', y " ∈ (y
1, y
2, y
3)
Min.2] ∈ [5.6%, 5.9%] ﹠amp; z
1＜=32.5%, THEN is FeOy relatively, RDIy
IF FeOy＞=RDIy-1%, THEN coke breeze proportioning+0.02%
IF FeOy＜RDIy-1%, THEN coke breeze proportioning-0.02%
32.IF y
1∈ [5.9%, 6.1%] ﹠amp; z
1＜=32.5%, THEN coke breeze proportioning-0.02%
When coke breeze groove material level 60% when above, can do following adjustment:
33.IF x
1∈ [desired value+0.2 ,+∞], THEN pursues reason
The IF reason distinguishes that THEN needn't adjust
IF is agnogenio, and THEN rod mill charge weight is adjusted setting value-3t/h
34.IF x
1∈ [∞, desired value-0.2], THEN pursues reason
The IF reason distinguishes that THEN needn't adjust
IF is agnogenio, and THEN rod mill charge weight is adjusted setting value+3t/h
35.IF x
1∈ [desired value-0.2, desired value-0.1], THEN pursues reason
The IF reason distinguishes that THEN needn't adjust
IF is agnogenio, and THEN rod mill charge weight is adjusted setting value+2t/h
36.IF x
1∈ [desired value+0.1, desired value+0.2], THEN pursues reason
The IF reason distinguishes that THEN needn't adjust
IF is agnogenio, and THEN rod mill charge weight is adjusted setting value-2t/h
37.IF x
1∈ [desired value, desired value+0.1], THEN pursues reason
The IF reason distinguishes that THEN needn't adjust
IF is agnogenio, and THEN rod mill charge weight is adjusted setting value-1t/h
38.IF x
1∈ [desired value-0.1, desired value], THEN pursues reason
The IF reason distinguishes that THEN needn't adjust
IF is agnogenio, and THEN rod mill charge weight is adjusted setting value+1t/h
● the basicity adjustment
1.IF5.60%＜y1, y2, y3, the %AND1.7＜x1 of y4≤(5.60+0.08), x2, x3, x4≤1.7+0.02, THEN SiO
2Do not adjust, basicity is with x1, x2, and x3, the mean value of x4 is done
Adjust;
2.IF5.60%＜y1, y2, y3, the %AND1.7-0.02≤x1 of y4≤(5.60+0.08), x2, x3, x4＜1.7, THEN SiO
2Do not adjust, basicity is with x1, x2, and x3, the mean value of x4 is done
Adjust;
3.IF (5.60-0.08) %≤y1, y2, y3, y4＜5.60%AND1.7＜x1, x2, x3, x4≤1.7+0.02, THEN SiO
2Do not adjust, basicity is with x1, x2, and x3, the mean value of x4 is done
Adjust
4.IF (5.60-0.08) %≤y1, y2, y3, y4＜5.60%AND1.7-0.02≤x1, x2, x3, x4＜1.7, THEN SiO
2Do not adjust, basicity is with x1, x2, and x3, the mean value of x4 is done
Adjust.
In above-mentioned rule, x1, x2, x3, x4 and y1, y2, y3, y4 are respectively basicity and SiO
2Continuous 4 sampling points; In all rules, all represent to have continuously several sampling points in certain interval as this form.1.7 and 5.6% be desired value, if there is sampling point to equal desired value, and sinter basicity and SiO
2All be ideal value, needn't go to adjust.Therefore, the desired value that do not have in the rule appears at the row of adjustment.Basicity and SiO
2Control strategy in, preferentially satisfy the basicity index request.When basicity satisfies production requirement, when other compositions do not satisfy production requirement, can not adjust.But,,, also to adjust even other compositions satisfy production requirement if basicity does not satisfy production requirement.Strictly all rules is all with the main body of basicity as control.Above situation, basicity and SiO
2Be worth all more satisfactory.According to control strategy, SiO
2Do not adjust, just adjust adjustment amount when basicity has continuous 4 sampling points
Like this, basicity is made fine tune, make the sinter basicity value more near desired value, even reach desired value, can keep the stability of sintering, can realize the purpose of adjusting again.
5.IF5.60%＜y1, y2, the %AND1.7-0.03≤x1 of y3≤(5.60+0.08), x2, x3≤1.7-0.02, THEN SiO
2Do not adjust, basicity is with x1, x2, and the mean value of x3 is done
Adjust;
6.IF (5.60-0.08) %≤y1, y2, y3＜5.60%AND1.7-0.03≤x1, x2, x3≤1.7-0.02, THEN SiO
2Do not adjust, basicity is with x1, x2, and the mean value of x3 is done
Adjust;
7.IF5.60%＜y1, y2, the %AND1.7+0.02≤x1 of y3≤(5.60+0.08), x2, x3≤1.7+0.03, THEN SiO2 does not adjust, and basicity is with x1, x2, the mean value of x3 is done
Adjust;
8.IF (5.60-0.08) %≤y1, y2, y3＜5.60%AND1.7+0.02≤x1, x2, x3≤1.7+0.03, THEN SiO
2Do not adjust, basicity is with x1, x2, and the mean value of x3 is done
Adjust;
%AND1.7+0.03≤x1≤the 1.7+0.05 of 9.IF5.60%＜y1≤(5.60+0.08), THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
10.IF (5.60-0.08) %≤y1＜5.60%AND1.7+0.03≤x1≤1.7+0.05, THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
%AND1.7-0.05≤x1≤the 1.7-0.03 of 11.IF5.60%＜y1≤(5.60+0.08), THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
12.IF (5.60-0.08) %≤y1＜5.60%AND1.7-0.05≤x1≤1.7-0.03, THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
%ANDx1＞the 1.7+0.05 of 13.IF5.60%＜y1≤(5.60+0.08), THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
14.IF (5.60-0.08) %≤y1＜5.60%ANDx1＞1.7+0.05, THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
%ANDx1＜the 1.7-0.05 of 15.IF5.60%＜y1≤(5.60+0.08), THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
16.IF (5.60-0.08) %≤y1＜5.60%ANDx1＜1.7-0.05, THEN SiO
2Do not adjust, basicity is done with x1
Adjust;
In several above rules, SiO
2More stable, and more satisfactory, and will not adjust SiO this moment
2, but according to the actual conditions of basicity, by adjusting computing formula
Go to adjust the amount of CaO.
17.IF (5.60+0.08) %≤y1, y2, the %AND 1.7-0.02≤x1 of y3≤(5.60+0.16), x2, x3＜1.7, THEN SiO
2Press the silica sand calculated value
Adjust, basicity does not adjust this moment;
18.IF (5.60+0.08) %≤y1, y2, the %AND1.7＜x1 of y3≤(5.60+0.16), x2, x3≤1.7+0.02, THEN SiO
2Do not adjust (or fine tune, transfer
Amount), basicity is with x1, x2, and the mean value of x3 is done
Adjust;
19.IF (5.60-0.16) %≤y1, y2, the %AND1.7-0.02≤x1 of y3≤(5.60-0.08), x2, x3＜1.7, THEN SiO
2Do not adjust (or fine tune, transfer
Amount), basicity is with x1, x2, and the mean value of x3 is done
Adjust;
20.IF (5.60-0.16) %≤y1, y2, the %AND1.7＜x1 of y3≤(5.60-0.08), x2, x3≤1.7+0.02, THEN SiO
2Press the silica sand calculated value
Adjust, basicity does not adjust this moment;
In above-mentioned regular 17, SiO
2After the minimizing, basicity is less than normal, and basicity R can rise thereupon, so do not go to adjust basicity this moment.Rule 20 is so same, SiO
2After the rising, basicity is bigger than normal, and basicity R can descend thereupon, does not go to adjust basicity.In the rule 18 and 19, SiO
2After the adjustment, the aggravation of basicity deviation, therefore, SiO
2Be in more stablely, with regard to uncomfortable or fine tune, and to adjust basicity, basicity is transferred
● SiO
2Adjustment
1.IF (5.60+0.08) %≤y1, y2, the %AND1.7+0.02≤x1 of y3≤(5.60+0.16), x2, x3≤1.7+0.03, THENSiO
2Adjust AND basicity with x1 by 1/8 of silica sand calculated value, x2, the mean value of x3 is done
Or
Adjust;
2.IF (5.60+0.08) %≤y1, y2, the %AND1.7-0.03≤x1 of y3≤(5.60+0.16), x2, x3≤1.7-0.02, THENSiO
2Press the silica sand calculated value
Adjust AND basicity with x1, x2, the mean value of x3 is done
Adjust;
3.IF (5.60-0.16) %≤y1, y2, the %AND1.7-0.03≤x1 of y3≤(5.60-0.08), x2, x3≤1.7-0.02, THENSiO
2Press the silica sand calculated value
Adjust AND basicity with x1, x2, the mean value of x3 is done
Adjust;
4.IF (5.60-0.16) %≤y1, y2, the %AND1.7+0.02≤x1 of y3≤(5.60-0.08), x2, x3≤1.7+0.03, THENSiO
2Press the silica sand calculated value
Adjust AND basicity with x1, x2, the mean value of x3 is done
Adjust; In the rule 21, SiO
2All bigger than normal with the value of basicity, if adjust SiO
2, basicity can continue to increase, and the method for adjustment of comprehensive two kinds of feelings is, is the homophony amount with basicity, adjusts
Or
With
Mean value, promptly
SiO
2Be inferior accent amount, fine tune is adjusted
Rule 23 methods of adjustment roughly the same.In rule 22, SiO
2Be worth bigger than normal and basicity value is less than normal, can be by adjusting SiO
2, basicity is risen, but can not surpass desired value, again to the basicity fine tune, promptly obtain adjusting result: SiO
2Adjust
Amount, the basicity adjustment
Rule 24 methods of adjustment roughly the same.Adjust like this, system fluctuation is not too large, has reached the purpose of adjusting again.
5.IF (5.60+0.08) %AND1.7+0.03≤x1≤1.7+0.05 of %≤y1≤(5.60+0.16), THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does with x1
Or
Adjust;
6.IF (5.60+0.08) %AND 1.7-0.05≤x1≤1.7-0.03 of %≤y1≤(5.60+0.16), THENSiO
2Press the silica sand calculated value
Adjusting AND basicity does with x1
Adjust;
7.IF (5.60-0.16) %AND1.7-0.05≤x1≤1.7-0.03 of %≤y1≤(5.60-0.08), THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does with x1
Or
Adjust;
8.IF (5.60-0.16) %AND1.7+0.03≤x1≤1.7+0.05 of %≤y1≤(5.60-0.08), THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does with x1
Adjust; In the rule 25, SiO
2Be worth bigger than normal, basicity deviation ratio SiO
2Even more serious, if only adjust SiO
2, basicity will continue to increase.The method of adjustment of comprehensive two kinds of situations is, is the homophony amount with basicity, adjusts
Or more more, promptly
SiO
2Be inferior accent amount, fine tune is adjusted
Rule 27 methods of adjustment roughly the same.In rule 26, SiO
2Be worth bigger than normal and basicity value is less than normal, can be by adjusting SiO
2, basicity is risen, but can not surpass desired value, again basicity is made fine tune, promptly obtain adjusting result: SiO
2Adjust
Amount, the basicity adjustment
Rule 28 methods of adjustment roughly the same.Adjust like this, system fluctuation is not too large, reaches the purpose of adjustment again.
9.IF (5.60+0.08) %ANDx1＞1.7+0.05 of %≤y1≤(5.60+0.16), THEN SiO
2Not adjusting AND basicity does with x1
Adjust;
10.IF (5.60+0.08) %ANDx1＜1.7-0.05 of %≤y1≤(5.60+0.16), THEN SiO
2Not adjusting AND basicity does with x1
Adjust;
11.IF (5.60-0.16) %ANDx1＜1.7-0.05 of %≤y1≤(5.60-0.08), THEN SiO
2Not adjusting AND basicity does with x1
Adjust;
12.IF (5.60-0.16) %ANDx1＞1.7+0.05 of %≤y1≤(5.60-0.08), THEN SiO
2Not adjusting AND basicity does with x1
Adjust;
In the 9-12 rule, SiO
2Be worth bigger than normally, basicity deviation situation has also exceeded range of management, belongs to very serious situation.If only adjust SiO
2, basicity can continue to increase, and gets back to comprehensively adjustment again within the range of management, basicity adjustment amount so should wait until basicity
Adjustment can make the basicity of system get back within the range of management fast like this.
13.IF 5.60+0.16≤y1, y2≤5.60+0.24AND1.7＜x1, x2≤1.7+0.02, THEN SiO
2Press the silica sand calculated value
Adjust AND basicity with x1, the mean value of x2 is done
Adjust;
14.IF 5.60+0.16≤y1, y2≤5.60+0.24AND 1.7-0.02≤x1, x2＜1.7, THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does not adjust;
15.IF 5.60-0.24≤y1, y2≤5.60-0.16AND 1.7-0.02≤x1, x2＜1.7, THEN SiO
2Press the silica sand calculated value
Adjust AND basicity with x1, the mean value of x2 is done
Adjust;
16.IF 5.60-0.24≤y1, y2≤5.60-0.16AND 1.7＜x1, x2≤1.7+0.02, THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does not adjust;
In the rule 33, SiO
2All bigger than normal with basicity value, and the basicity deviation is less, if only adjust SiO
2, basicity can continue to increase, and should be adjusted into the master with basicity, comprehensive adjustment, basicity adjustment amount
Or
SiO
2Then make fine tune, adjust
Rule 35 methods of adjustment roughly the same.In rule 34, SiO
2Be worth bigger than normal and basicity value is less than normal, can be by adjusting SiO
2, basicity is risen, but can not surpass desired value, again basicity is made fine tune, promptly obtain adjusting result: SiO
2Adjust
Amount, the basicity adjustment
Rule 36 methods of adjustment roughly the same.Adjustment also is in order to make system fluctuation as far as possible little, to reach the purpose of adjustment again like this.
17.IF (5.60+0.16) %≤y1, the %AND1.7+0.02≤x1 of y2≤(5.60+0.24), x2≤1.7+0.03, THEN SiO
2Press the silica sand calculated value
Adjust AND with x1, the mean value of x2 is done
Adjust;
18.IF (5.60+0.16) %≤y1, the %AND1.7-0.03≤x1 of y2≤(5.60+0.24), x2≤1.7-0.02, THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does not adjust;
19.IF (5.60-0.24) %≤y1, the %AND1.7-0.03≤x1 of y2≤(5.60-0.16), x2≤1.7-0.02, THEN SiO
2Press the silica sand calculated value
Adjust AND with x1, the mean value of x2 is done
Adjust;
20.IF (5.60-0.24) %≤y1, the %AND1.7+0.02≤x1 of y2≤(5.60-0.16), x2≤1.7+0.03, THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does not adjust;
In the rule 37, SiO
2Value bigger than normal, basicity is also bigger than normal.If only adjust SiO
2, basicity can continue to increase.Be adjusted into the master with basicity, comprehensive adjustment, basicity adjustment amount
SiO
2Make fine tune, adjustment is measured
Rule 39 methods of adjustment roughly the same.
In rule 38, SiO
2Be worth bigger than normal and basicity value is less than normal, can be by adjusting SiO
2, basicity to a certain degree being risen, but can not surpass desired value, basicity remakes fine tune, promptly obtains adjusting result: SiO
2Adjust
Amount, basicity does not adjust, rule
21. method of adjustment roughly the same.Adjustment also is in order to make system fluctuation little, to reach the purpose of adjustment again like this.
22.IF (5.60+0.16) %AND1.7+0.03≤x1≤1.7+0.05 of %≤y1≤(5.60+0.24), THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does with x1
Adjust;
23.IF (5.60+0.16) %AND1.7-0.05≤x1≤1.7-0.03 of %≤y1≤(5.60+0.24), THEN SiO
2Press the silica sand calculated value
Adjusting AND basicity does not adjust;
24.IF (5.60-0.24) %AND1.7-0.05≤x1≤1.7-0.03 of %≤y1≤(5.60-0.16), THEN SiO
2Press the silica sand calculated value
Adjust AND basicity and do 5/12 adjustment with x1;
25.IF (5.60-0.24) %AND1.7+0.03≤x1≤1.7+0.05 of %≤y1≤(5.60-0.16), THEN SiO
2Adjusting AND basicity by 1/6 of silica sand calculated value does not adjust;
In the rule 41, SiO
2Be worth bigger than normally, basicity deviation situation is also relatively more serious, if only adjust SiO
2, basicity can continue to increase, and is adjusted into the master with basicity, the comprehensive adjustment, and the basicity adjustment amount is 1/3, again because of SiO
2Adjustment, the adjustment of basicity measures 1/2 or more more, promptly 5/12, SiO
2Then be time accent amount, fine tune adjusts 1/8.Rule 43 methods of adjustment roughly the same.In rule 42, SiO
2Be worth bigger than normal and basicity value is less than normal, can be by to SiO
2Adjustment, basicity is to a certain degree risen, but can not surpass desired value, and basicity does not adjust.The adjustment result is: SiO
2Adjust 1/6 amount.Rule 44 methods of adjustment roughly the same.Adjustment also is in order to make system fluctuation not too big like this.
26.IF (5.60+0.16) %ANDx1＞1.7+0.05 of %≤y1≤(5.60+0.24), THEN SiO
2Adjust AND basicity by 1/8 of silica sand calculated value and do 7/12 adjustment with x1;
27.IF (5.60+0.16%) %ANDx1＜1.7-0.05 of %≤y1≤(5.60+0.24), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 5/12 adjustment with x1;
28.IF (5.60-0.24) %ANDx1＜1.7-0.05 of %≤y1≤(5.60-0.16), THEN SiO
2Adjust AND basicity by 1/8 of silica sand calculated value and do 7/12 adjustment with x1;
29.IF (5.60-0.24) %ANDx1＞1.7+0.05 of %≤y1≤(5.60-0.16), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 5/12 adjustment with x1;
In the rule 45, SiO
2Be worth bigger than normally, basicity deviation situation compares SiO
2Even more serious, if only adjust SiO
2, basicity can continue to increase, and is adjusted into the master with basicity, the comprehensive adjustment, and basicity adjusts 1/2 or more more, and promptly 7/12, SiO
2Then be time accent amount, fine tune adjusts 1/8.Rule 47 methods of adjustment roughly the same.In rule 46, SiO
2Be worth bigger than normal and basicity value is less than normal, can pass through SiO
2Adjustment, basicity is to a certain degree risen, but can not surpass desired value, to basicity work fine tune to a certain degree, promptly obtain adjusting result: SiO again
2Adjust 1/4 amount, basicity adjusts 5/12.Rule 48 methods of adjustment roughly the same.
30.IF (%AND of y1 〉=5.60+0.24) (% of 1.7＜x1≤1.7+0.02), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 1/3 adjustment with x1;
31.IF %AND1.7-0.02≤x1＜1.7 of y1 〉=(5.60+0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
32.IF %AND1.7-0.02≤x1＜1.7 of y1≤(5.60-0.24), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 1/3 adjustment with x1;
33.IF the %AND1.7≤x1≤1.7+0.02 of y1≤(5.60-0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
In the rule 30, SiO
2Value has exceeded range of management, and basicity value can be adjusted SiO relatively near optimum value
2Be main, the uncomfortable or fine tune of basicity, SiO
2Adjust 1/4 amount, basicity is adjusted 1/3 amount.Rule 32 methods of adjustment roughly the same.In rule 31, SiO
2Value has exceeded range of management, and the value of basicity is less than normal, can be by adjusting SiO
2, basicity to a certain degree being risen, but can not surpass desired value, the result that basicity does not adjust is: SiO
2Adjust 1/4 amount, basicity is not adjusted.Rule 52 methods of adjustment roughly the same.
34.IF the %AND1.7+0.02≤x1≤1.7+0.03 of y1 〉=(5.60+0.24), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 1/3 adjustment with x1;
35.IF the %AND1.7-0.03≤x1≤1.7-0.02 of y1 〉=(5.60+0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
36.IF the %AND1.7-0.03≤x1≤1.7-0.02 of y1≤(5.60-0.24), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 1/3 adjustment with x1;
37.IF the %AND1.7+0.02≤x1≤1.7+0.03 of y1≤(5.60-0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
In the rule 34, SiO
2Value has exceeded range of management, and basicity value is bigger than normal a little, to adjust SiO
2Be main, basicity can uncomfortable or fine tune, SiO
2Adjustment amount be 1/4, basicity is adjusted 1/3 amount.Rule 36 methods of adjustment roughly the same.In rule 35, SiO
2Value has exceeded range of management, and basicity value is less than normal, can be by adjusting SiO
2, basicity is to a certain degree risen, but can not surpass desired value, do not adjust with basicity, the adjustment result who obtains is: SiO
2Adjust 1/4 amount, basicity is not adjusted.Rule 37 methods of adjustment roughly the same.
38.IF the %AND1.7+0.03≤x1≤1.7+0.05 of y1 〉=(5.60+0.24), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 1/3 adjustment with x1;
39.IF the %AND1.7-0.05≤x1≤1.7-0.03 of y1 〉=(5.60+0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
40.IF the %AND1.7-0.05≤x1≤1.7-0.03 of y1≤(5.60-0.24), THEN SiO
2Adjust AND basicity by 1/4 of silica sand calculated value and do 1/3 adjustment with x1;
41.IF the %AND1.7+0.03≤x1≤1.7+0.05 of y1≤(5.60-0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AN basicity and does not adjust;
In the rule 38, SiO
2Value has exceeded range of management, and basicity value is bigger than normal, to adjust SiO
2Be main, the uncomfortable or fine tune of basicity, SiO
2Adjustment amount be 1/4, basicity is adjusted 1/3 amount.Rule 40 methods of adjustment roughly the same.In rule 39, SiO
2Value exceeded range of management, basicity value is less than normal, can be by adjusting SiO
2, basicity is to a certain degree risen, but can not surpass desired value, do not adjust the adjustment result who obtains with basicity and be: SiO
2Adjust 1/4 amount, basicity is not adjusted.The method of adjustment of rule 41 roughly the same.
42.IF the %ANDx1＞1.7+0.05 of y1 〉=(5.60+0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
43.IF the %ANDx1＜1.7-0.05 of y1 〉=(5.60+0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
44.IF the %ANDx1＜1.7-0.05 of y1≤(5.60-0.24), t THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust;
45.IF the %ANDx1＞1.7+0.05 of y1≤(5.60-0.24), THEN presses SiO
21/4 of silica sand calculated value adjusts AND basicity and does not adjust.
Respective rule is used for current reasoning, realizes the reasoning of problem is found the solution.Inference mechanism is made up of batch processing, realizes the reasoning of problem is found the solution.Inference machine is mainly done following work:
1) mates by certain strategy known fact of selective rule and integrated data base from rule base.So-called coupling be meant the precondition of rule and integrated data base refer to known relatively true, if both unanimities are perhaps approximate consistent and satisfy the degree of approximation of predesignating, be called then that the match is successful, rule can be used accordingly; Otherwise it is unsuccessful to be called coupling, and respective rule is not useable for current reasoning.
2) carrying out a certain when regular,, then these conclusions are being added in the integrated data base if consequent that should rule is one or more conclusions.If the consequent of rule is one or more operations, then carry out these operations successively.
3) for uncertain knowledge, also will be when carrying out each bar rule by the uncertainty of certain algorithm computation conclusion.And check the condition that finishes the inference machine operation at any time, when satisfying termination condition, stop the operation of inference machine.
The characteristics of graded control sintering deposit chemical component prediction system of the present invention are, are the purpose of sintering process control with the Composition Control, set up rule base and inference mechanism according to sintering physical and chemical parameter, operating parameter and index parameter.The former piece of rule is the result of laboratory test according to sintering deposit, adopts major component system method to realize element extraction; Consequent is a series of control strategies.Inference mechanism is mainly derived from physical and chemical reaction process, control flow and section chief's instruction; After obtaining the parameter of former piece, the control law that is complementary with former piece in the search rule storehouse; If the match is successful, and in system scope, just finish a series of control actions of this rule, and obtain corresponding control strategies.The method of search adopts " composite optimization search procedure " in real time, and the node that satisfies condition is at first enabled earlier; When similar various element occurring (as SiO
2With FeO etc.) when influencing each other, adopt the major component principle of priority.Time coordination, device was as the embedded parts of planning department, carried out the Real-Time Scheduling program, the distribution of coordinated time and resource between several objects.After system forms control strategy, promptly send into execution portion; Execution portion plans two other important control system of explaining and sending into sintering process immediately: material balance system and burning point control system.If planning failure and control strategy are carried out problems such as overtime, execution portion can produce the planning request and weight-normality is drawn request.Therefore, the present invention is that a kind of physical and chemical reaction model and experience inference combine, based on the practical sintering deposit chemical component prediction control system of high-speed decision.
Description of drawings
Fig. 1 is a graded control sintering deposit chemical component prediction system basic management computing block diagram of the present invention.Wherein, 1-material composition laboratory values sintering deposit composition laboratory values, 2-judges unusually, is it unusual?, 3-provides the possible analysis of causes and provides Operating Guideline, 4-draws condition judgment by mathematical computations, and add field condition information summary factor, and 5-wherein must provide field condition and confirm dialog box, and 6-seeks regulation rule according to condition and finds out rule conclusion, the proportioning that must make new advances, 7-provides proportioning control or prompted dialog frame.
Fig. 2 is a graded control sintering deposit chemical component prediction system of the present invention.Wherein, 8-man-machine interface, 9-decision-making portion, 10-knowledge base, 11-reasoning storehouse, 12-relatively sorts, the 13-refinement, the 14-dynamic combined, 15-device time coordination, 16-execution portion, 17-failure recovery (the weight-normality request of drawing), 18-control strategy (planning request), 19-plans explanation, the 20-material balance system, 21-burning point control system, 22-database, 23-device control level, 24-data handling system, 25-automatic control system.
Fig. 3 is a graded control sintering deposit chemical component prediction system program flow diagram of the present invention.Wherein, the value of 26-input sample, 27-judges the interval at place, 28-carries out adding up of sampling point interval, 29-search rule storehouse, 30-exports adjustment amount, the information that will add up zero clearing, 31-returns.
Fig. 4 is that graded control sintering deposit chemical component prediction system sinter basicity of the present invention is adjusted management flow chart.Wherein, first kind of situation of 32-, 33-〉=desired value+0.051 point≤desired value-0.05,34-serves as according to calculating, doing with this sampling point and desired value
Adjust, second kind of situation of 35-, 36-〉=desired value+0.031 point≤desired value-0.03,37-serves as according to calculating, doing with this sampling point and desired value
Adjust, the most difficult accent of this point of 38-, next class will perform the analysis of transferring the 2nd sample in back, give revisal in case of necessity, the 4th kind of situation of 39-, 40-≤desired value 10 continuous 4 points 〉=desired values-0.02,41-serves as according to calculating, doing with these 4 point sample C/S value mean values and desired value
Or
Adjust, the third situation of 42-, continuous 3 points in 43-＞desired value+0.02＜desired value-0.02,44-serves as according to calculating, doing with these 3 point sample C/S value mean values and desired value
Adjust.
Fig. 5 is SiO in the graded control sintering deposit chemical component prediction system sintering deposit of the present invention
2The content management flow chart.Wherein, first kind of situation of 45-, continuous 4 point≤0.08 of 46-o'clock, 47-follows the tracks of, monitors countermeasure that 48-presses SiO
2Calculated value
Adjust, second kind of situation of 49-, 50-continuous 3 or 3 mean value 〉=0.08 o'clock, 51-analysis and judgement countermeasure, the third situation of 52-, 53-continuous 2 or 2 mean value 〉=0.160 o'clock, 54-request raw material is rechecked and is analyzed the reason countermeasure, the 4th kind of situation of 55-, and 1 point 〉=0.24 o'clock appears in 56-, the 57-former state is rechecked, and investigates reason.Get special sample consignment.Agnogenio, transfer temporarily
The amount countermeasure.
Fig. 6 is a graded control sintering deposit chemical component prediction system sintered ore rotary drum strength management flow chart of the present invention.Wherein, value＞73% that 58-is continuous 2, value＞72% that the 59-5 point is average, value＜71% that the 60-5 point is average, value＜71% that 61-is continuous 2,2 hours interim analyses behind continuous 2 of the 62-, 63-＜71%, 64-＞=71%, 65-needn't adjust, 66-adjusts chassis speed: (every time will be prerequisite with the steady production amount per hour) to＜=0.2M
Fig. 7 is a graded control sintering deposit chemical component prediction system reduction and pulverization ratio management flow chart of the present invention.Wherein, continuous 2 value RDI＜32.5% of 67-, value RDI＞=37.5% that 68-is continuous 2, the value RDI that 69-1 is ordered＞=38.5%, 70-iron protoxide level, in 71-desired value+0.3, in the 72-desired value-0.2, in the 73-desired value-0.3, in 74-desired value+0.2,75-coke breeze proportioning-0.05,76-coke breeze proportioning-0.02,77-coke breeze proportioning+0.05,78-coke breeze proportioning+0.02.
Fig. 8 is the dialogue block diagram that first point value is imported in graded control sintering deposit chemical component prediction system of the present invention program run.
Fig. 9 is the dialogue block diagram of second point value of graded control sintering deposit chemical component prediction system program run input of the present invention.
Figure 10 is the dialogue block diagram that the 3rd point value imported in graded control sintering deposit chemical component prediction system of the present invention program run.
Figure 11 is the dialogue block diagram that the 4th point value imported in graded control sintering deposit chemical component prediction system of the present invention program run.
Figure 12 is graded control sintering deposit chemical component prediction system composition rule base of the present invention and composition rules modification dialogue block diagram.
Embodiment
Describe embodiment of the present invention in detail below in conjunction with accompanying drawing.
Embodiment
Composition Control is the purpose of sintering process control.The mode that the present invention adopts physical and chemical reaction model and experience inference to combine goes to set up the Controlling of Sinter Chemical Composition system based on high-speed decision.Graded control sintering deposit chemical component prediction system basic calculating flow process of the present invention has provided sintering deposit chemical component prediction method.Computation process is, obtain material composition laboratory values sintering deposit composition laboratory values 1 earlier, judge unusually, unusual? 2, provide the possible analysis of causes and provide Operating Guideline 3, simultaneously, draw condition judgment, and add field condition information summary factor 4 by mathematical computations, wherein must provide field condition and confirm dialog box 5, seek regulation rule according to condition again and find out rule conclusion, the proportioning 6 that must make new advances provides proportioning control or prompted dialog frame 7 at last.On this basis, graded control sintering deposit chemical component prediction system of the present invention adopts the graded control strategy according to the complicacy and the control present situation of sintering process, is divided into man-machine interface 8, decision-making level 9, execution level 16, device control layer 23.Wherein, decision-making level 9 comprise knowledge base 10, inference machine 11, relatively sort 12, refinement 13, dynamic combined 14, time coordination device 15; Execution level 16 comprises planning explanation 19, control strategy (planning request) 18, failure recovery (the weight-normality request of drawing) 17, database 22, material balance system 20, burning point control system 21.The device control level is made up of automatic control system 25 and data handling system 24.
System selects Visual C++ as program, and SQLserver is a database.Program circuit is, the value 26 of input sample is judged the interval 27 at place, and that carries out the sampling point interval adds up 28, search rule storehouse 29, and the output adjustment amount, the information that will add up zero clearing 30 returns 31.
Programming
Utilize the form of class in the C Plus Plus to realize the process of reasoning.Subprogram is defined as follows:
The true class of class fact//define
{private：
Int Number; // true number
Char Name[121]; // true name
Int Active; // activation marker
Int Succ; // match flag
public：
Fact*Next; The pointer Next of // sensing fact class
Fact (int Num, char*L) //constructed fuction of fact class
{strcpy(Name，L)；
Number＝Num；
Active＝False；
Succ＝DontKnow；
Next＝NULL；
}；
Class rule//definition rule class
{ char*Name; // rule name
List*Pre; The prerequisite anchor point Pre of // sensing list class
Int Conc; // deposit the integer variable of conclusion
public：
Rule*Next; The pointer Next of // sensing rule class
Rule (char*N, int P[], int C); The constructed fuction of //rule class
~ rule (); // definition destructor function
Int Query (); // definition query function
Void GetName () // member function, effect is the output rule name
{cout＜＜Name；}
}；
In this program, rule definition is become object, use the structure of rule and about the reasoning of rule to be defined as Regularia, form knowledge base by the strictly all rules object that Regularia generates, the method for operating in storehouse is provided by the Regularia method of operating.
Rule is set up by the constructed fuction of Regularia, and the storage unit of regular dynamic node is discharged by destructor function.Article one, rule is a knowledge entity, and itself has advisory role, by the function Q uery realization of Regularia.Rule is a node in the rule chain, and a knowledge base is formed in a rule chain.For production system, except form a knowledge base by rule chain, also have a factbase, recording user and the result of system's dialogue and the intermediate result of reasoning also are the current environment of expression.Factbase is dynamic, and it comprises that at first original all assert, but does not know really still to be vacation, along with user session, activate and be asserted as very, or be vacation.Simultaneously, the rule in the rule base is true and falsely made reasoning according to what assert in the factbase.When setting up knowledge base, also set up factbase.Factbase also is a dynamic link table, and fact is a node in the chained list, and factbase and knowledge base are entities, and true number is unique key word of factbase, and the rule in the knowledge base is got in touch with factbase by true number.The prerequisite chain is realized that by the chain object node of chain has only two data fields, fact number, and another is meant the pointer to next node.Regular data is by the constructed fuction create-rule object of Regularia, and this constructed fuction needs three parameters, a rule name, and an expression prerequisite is asserted the array of numbering, also has a conclusion to assert numbering.Rule objects is the entity of knowledge, and it comprises the storage of knowledge and the use of knowledge.In expert system, inference mechanism is packaged together with rule objects, form an independently blocks of knowledge, rule objects and facts object and user interactions.Facts object has write down current state.Rule objects is at first taken out asserting of precondition, inquiry facts object collection.If all preconditions all are proved, then conclusion is true, otherwise system obtains the conclusion beyond the rule.Consider the information of accumulative total sampling point in the technological requirement, can preserve a certain amount of data again, deposit data with this notion of global variable in the C Plus Plus, solves the process that sampling point adds up, and keeps a certain amount of data with array in internal memory.Provide the subprogram of sampling point accumulative total below:
if(x＞1.750)a＝1；
else?if(x＜1.649)a＝-1；
else?a＝0；
This is a statement of judging an interval in the basicity, and other are interval similar with these statements.
if(x＞＝5.840)e＝1；
else?if(x＜＝5.360)e＝-1；
else?e＝0；
This is to judge SiO
2In the statement in an interval, the same with the situation of judging basicity, by the information between global variable accumulative total sampling point location, thereby realize technological requirement.
if(a＝＝1)a1＝a1+1；
else?if(a＝＝-1)a1＝a1-1；
if(b＝＝1)b1＝b1+1；
else?if(b＝＝-1)b1＝b1-1；
if(c＝＝1)c1＝c1+1；
else?if(c＝＝-1)c1＝c1-1；
if(d＝＝1)d1＝d1+1；
else?if(d＝＝-1)d1＝d1-1；
Above program segment is the statement of basicity accumulative total point, by judging between the location, uses global variable a1, b1, c1, the d1 accumulative total in each interval then, realizes waiting until that the just situation of adjustment appears in several sampling points.
if(e＝＝1)e1＝e1+1；
else?if(e＝＝-1)e1＝e1-1；
if(f＝＝1)f1＝f1+1；
else?if(f＝＝-1)f1＝f1-1；
if(g＝＝1)g1＝g1+1；
else?if(g＝＝-1)g1＝g1-1；
if(h＝＝1)h1＝h1+1；
else?if(h＝＝-1)h1＝h1-1；
It is as follows that graded control sintering deposit chemical component prediction system sinter basicity of the present invention is adjusted management process, has four kinds of situations: first kind of situation 32, 〉=desired value+0.051 point≤-0.05 desired value 33 serves as according to calculating, doing with this sampling point and desired value
Adjust 34; Second kind of situation 35, 〉=desired value+0.031 point≤-0.03 desired value 36 serves as according to calculating, doing with this sampling point and desired value
Adjust 37, the most difficult accent of this point, next class will perform the analysis of transferring the 2nd sampling point in back, give revisal 38 in case of necessity; The third situation 42, continuous 3 points in＞desired value+0.02＜-0.02 desired value 43 serve as according to calculating, doing with these 3 point sample C/S value mean values and desired value
Adjust 44; The 4th kind of situation 39, continuous 4 points in≤desired value+0.02 〉=-0.02 desired value 40 serve as according to calculating, doing with these 4 point sample C/S value mean values and desired value
Or
Adjust 41.
Equally, SiO
2Also adopt identical method, utilization global variable f1, g1, g1 and h1 add up by after the interval judgement.Also divide four kinds of situations: first kind of situation 45, continuous 4 point≤0.08 o'clock 46 are adopted and are followed the tracks of, monitor countermeasure 47; Second kind of situation 49, analysis and judgement countermeasure 51 is adopted in continuous 3 or 3 mean value 〉=0.08 o'clock 50; The third situation 52, continuous 2 or 2 mean value 〉=0.160 o'clock 53 is adopted the request raw material to recheck and is analyzed reason countermeasure 54, presses SiO
2Calculated value
Adjust 48; 1 point 〉=0.24 o'clock 56 appears in the 4th kind of situation 55, adopts former state to recheck, and investigates reason, gets special sample consignment or agnogenio, transfers temporarily
Amount countermeasure 57.
Basicity and SiO have been arranged
2In the accumulated result of each the interval sampling point judgement information in the middle of promptly, in the program below, just can just can realize whole flow process according to rule base according to its prerequisite as judgement.Provide some in the subroutine in rule searching storehouse below:
if(((d1＝＝4)||(d1＝＝-4))&&((h1＝＝4)||(h1＝＝-4)))
{ printf (" adjusts the result: SiO
2Do not adjust, basicity is with x1, x2, x3, the mean value of x4 do 1/4 adjust n ");
d1＝0；h1＝0；return；}
The effect of d1=0 and h1=0 is zero clearing.Because find so a rule from rule base after, should zero clearing about global variable, like this, mistake in logic just can not appear because not having zero clearing when rule inspires next time.
Just hypothesis has such a case now, and continuous 4 value of basicity is 1.71,1.705,1.715,1.71, SiO
2Continuous 4 value be 5.62,5.64,5.65,5.67, in the program percentage sign has been put into the part of calculating, here just without percentage sign.According to the search of rule base, such conclusion should be arranged: just adjust when occurring at continuous 4, adjustment amount is 1/2.Input 1.71 and 5.62 during program run, first sampling point are through after the program run, and obtaining conclusion is that sintering is stable, waits for next sampling point; Import the value 1.705 and 5.64 of second point successively, import the value 1.715 and 5.65 of the 3rd point, then import the value 1.71,5.67 of the 4th point.
List graded control sintering deposit chemical component prediction system sintered ore rotary drum strength management process of the present invention below.(average value＞72%59,5, continuous 2 value＞73%58,5 average value＜71%60=---adjust chassis speed: (every time will be prerequisite 66 with the steady production amount per hour) to＜=0.2M.---chassis speed is adjusted in 2 hours interim 62---＜71%63---of analyzing after continuous 2: (every time will be prerequisite 66 with the steady production amount per hour) to＜=0.2M in continuous 2 value＜71%61; 2 hours interim 62---71%64---of analyzing needn't adjust 65 after continuous 2.
Graded control sintering deposit chemical component prediction system reduction and pulverization ratio management process of the present invention.
Continuous 2 value RDI＜32.5%67---iron protoxide level 70---desired value+0.3 is with interior 71---0.05 coke breeze proportioning 75; Iron protoxide level 70---desired value-0.2 is with interior 72----0.02 coke breeze proportioning 76.(continuous 2 value RDI＞=37.5%68,1 value RDI＞=38.5%69)---iron protoxide level 70---desired value-0.3 is with interior 73---+0.05 coke breeze proportioning 77; Iron protoxide level 70---desired value+0.2 is with interior 74---+0.02 coke breeze proportioning 78.
Can see that from the result of program run by the search rule storehouse, obtain a conclusion, program can be finished technological requirement preferably.
At last, carry out program debug.Program is debugged on the VC platform, the data that meet floating type are deposited out of true in program, can select these data be multiply by 1000 or 10000, obtain bigger number, convert it to integer variable, then before judging the interval, first debugged program, see after whether data after the conversion and unconverted data have radix point and move whether data change.Through debugging, there is such value to exist, for example: 1.7 in the VC internal memory is deposited, after moving behind the radix point, round, be not 1700, but 1699, this is that the characteristics of C Plus Plus own cause.As pay no heed to, 1.7 with internal memory in 1.7 relatively the time, the result be exactly the former less than the latter, mistake has in logic appearred, should avoid as far as possible.
Claims (6)
1, a kind of graded control sintering deposit chemical component prediction system comprises material balance system and burning point control system, it is characterized in that physical and chemical reaction model and the experience inference system that combines is made up of man-machine interface, decision-making portion, execution portion and device control level.Decision-making portion by knowledge base, reasoning storehouse, relatively ordering and refinement, dynamic combined and time coordination device constitute; Execution portion is made of failure recovery (the weight-normality request of drawing), control strategy (planning request), planning explanation, material balance system and burning point control system and database; The device control level is made of automatic control system and data handling system.
2, graded control sintering deposit chemical component prediction system according to claim 1 is characterized in that sintering deposit chemical component prediction basic calculating flow process is:
A. obtain material composition laboratory values and sintering deposit composition laboratory values;
B. judge unusually, whether unusually;
C. provide the possible analysis of causes and provide Operating Guideline;
D. draw condition judgment by mathematical computations, and add field condition information summary factor;
E. provide field condition and confirm dialog box;
F. seek regulation rule according to condition, find out rule conclusion, the proportioning that must make new advances;
G. provide proportioning control or prompted dialog frame.
3, graded control sintering deposit chemical component prediction system according to claim 1, it is characterized in that, sintering deposit chemical component prediction system graded control program flow process is: the value of a. input sample, b. judge the interval at place, c. carry out adding up of sampling point interval, d. search rule storehouse, e. exports adjustment amount, the information that will add up zero clearing, e. returns.
4, graded control sintering deposit chemical component prediction system according to claim 1 is characterized in that visual c++ program and SQLserver database are arranged in the system.
5, graded control sintering deposit chemical component prediction system according to claim 1 is characterized in that SiO in sinter basicity adjustment, the sintering deposit is arranged
2Content management, sintered ore rotary drum strength management, reduction and pulverization ratio management of dialogs frame or interface.
6, graded control sintering deposit chemical component prediction system according to claim 1 is characterized in that composition rule base and composition rules modification dialog box man-machine interface are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610024073 CN1845022A (en) | 2006-02-22 | 2006-02-22 | Chemical component prediction system with stepped control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610024073 CN1845022A (en) | 2006-02-22 | 2006-02-22 | Chemical component prediction system with stepped control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1845022A true CN1845022A (en) | 2006-10-11 |
Family
ID=37063957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610024073 Pending CN1845022A (en) | 2006-02-22 | 2006-02-22 | Chemical component prediction system with stepped control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1845022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651559A (en) * | 2015-01-30 | 2015-05-27 | 东北大学 | Blast furnace liquid iron quality online forecasting system and method based on multivariable online sequential extreme learning machine |
| CN107703743A (en) * | 2017-09-15 | 2018-02-16 | 首钢京唐钢铁联合有限责任公司 | Sinter basicity autocontrol method |
-
2006
- 2006-02-22 CN CN 200610024073 patent/CN1845022A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104651559A (en) * | 2015-01-30 | 2015-05-27 | 东北大学 | Blast furnace liquid iron quality online forecasting system and method based on multivariable online sequential extreme learning machine |
| CN104651559B (en) * | 2015-01-30 | 2017-01-11 | 东北大学 | Blast furnace liquid iron quality online forecasting system and method based on multivariable online sequential extreme learning machine |
| CN107703743A (en) * | 2017-09-15 | 2018-02-16 | 首钢京唐钢铁联合有限责任公司 | Sinter basicity autocontrol method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1061945C (en) | Process and equipment for producing iron carbide | |
| CN1749891A (en) | Intelligent optimized control method for comprehensive production index in ore dressing process | |
| CN1728445A (en) | Desulfurization process of pastel and grids of lead accumulators | |
| CN1264066A (en) | Method for controlling noise filtering with non-linear mould predictive control and gas-phase reactor controller | |
| CN1940793A (en) | Integrated focus intelligent controlling system | |
| CN101046682A (en) | Method for predicting hot-rolling Nb-containing band steel organization and mechanical properties | |
| CN1222628C (en) | Method and apparatus for producing desulfurizing agent for hot-metal | |
| CN1993381A (en) | Method for radical polymerization of ethylenically unsaturated compounds | |
| CN1238843A (en) | Frequency-voltage conversion circuit, delay amount judgement circuit, system having frequency-voltage conversion circuit, method of adjusting input/output characteristics of frequency-voltage conversi | |
| CN1063381A (en) | Voltage or powerless control method and control appliance thereof | |
| CN1046554C (en) | Iron semlting process and plant according to the multiple zone semlting process | |
| CN1016184B (en) | Method for roasting ores into ball agglomeration | |
| CN1492210A (en) | Intelligent control method for aluminium oxide chamotte sintering rotary kiln | |
| CN1121447A (en) | Form control method in rolling mill | |
| CN1845022A (en) | Chemical component prediction system with stepped control | |
| CN1112975C (en) | Method for treating matter contg. chromium oxides in large scale, and method for utilizing after-treatment matter | |
| CN100347324C (en) | Iron-based mixed powder for powder metallurgy, and iron-based sintering brequette | |
| CN101038674A (en) | Image tracking method and system thereof | |
| CN101042712A (en) | Method for implementing the design for large scale customized products groups | |
| CN1921976A (en) | Discharge processing machine power supply apparatus and power supply control method | |
| CN1681949A (en) | Method for reduction treatment of metal oxide or ironmaking waste, and method for concentration and/or recovery of zinc and/or lead | |
| CN1057175C (en) | Instruction value determining device | |
| CN1013279B (en) | Method for mfg. chromium-bearing pig iron | |
| CN1024810C (en) | Detoxication and comprehensive utilization of waste residue and gangue containing chromium titanium nickel and vanadium | |
| CN1094476C (en) | Formula and technology for producing colour concrete tiles with powdered coal ash and other waste industrial dregs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20061011 |