CN106929615A - A kind of blast furnace crucibe numerical simulation and resolution system and its control method - Google Patents
A kind of blast furnace crucibe numerical simulation and resolution system and its control method Download PDFInfo
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- CN106929615A CN106929615A CN201710240585.8A CN201710240585A CN106929615A CN 106929615 A CN106929615 A CN 106929615A CN 201710240585 A CN201710240585 A CN 201710240585A CN 106929615 A CN106929615 A CN 106929615A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2300/00—Process aspects
- C21B2300/04—Modeling of the process, e.g. for control purposes; CII
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Abstract
The invention discloses a kind of blast furnace crucibe numerical simulation and resolution system and its control method, belong to Computer Simulation field.For in the prior art on the basis of process conditions, operating parameter, the problems of research to cupola well region is realized using Fluid Mechanics Computation theory and method, dead stock column condition judgment module, cupola well molten iron flow module and Flow and Temperature COMPREHENSIVE CALCULATING module are integrated in a platform by it.Consider possible influence factor, slag iron flow field, the temperature field of thermo parameters method and cupola well bottom refractory, thermal stress distribution in cupola well are obtained, so as to judge their influences to bosh gas index.It can simulate different condition, the scene of parameter, finally realize that user only needs to inputting process parameters, operating condition and can be obtained by cupola well inside molten iron flow situation, existing for the temperature field of side wall and furnace bottom, Stress Field Distribution.
Description
Technical field
It is with parsing the present invention relates to Computer Simulation field, more particularly to a kind of blast furnace crucibe numerical simulation of metallurgical industry
System and its control method.
Background technology
Although quite varied and deep to the research of blast furnace crucibe molten iron flow mode and influence factor in world wide
Enter, but, even so, operating mode visualization in cupola well cannot be also realized in scientific and technological today flourishing at a high speed；It is how deep
Transitive relation in parsing cupola well between quality, energy, momentum, the factor for further finding out the limitation cupola well life-span turns into people urgently
Problem to be solved.Forefathers are dissected by actual blast furnace and method of sample analysis enters to blast furnace crucibe molten iron flow and erosion behavior
Go research, but experimental cost is higher.Other part scholar is divided by the resistance to material temperature survey of cupola well in actual blast fumance
Analysis judges cupola well molten iron flow and erosion behavior but mostly there is influence factor to consider not comprehensive that the authenticity of data has to be discussed
The problems such as.In recent years, developing rapidly with computer technology, flowing, biography of the method for numerical simulation in metallurgical process is studied
More and more important role is played the part of in defeated behavior, and many blast furnace workers take Fluid Mechanics Computation (CFD) and combine cold conditions physics
The method of simulation, research is launched for flow of fluid behavior in blast furnace crucibe, but many is all only for studying stove in a certain respect
The behavior of cylinder molten iron flow, for example, only considering dead stock column state, molten iron circulation washes away, the porosity of dead stock column, cupola well depth,
Blast furnace iron notch depth, temperature field, one or more in the flow that taps a blast furnace, tapping hole depth and molten iron level height, not
Cupola well molten iron flow can truly be reflected, smaller to real work directive significance, effect is poor.
Paper one《Blast furnace crucibe molten iron Field Flow Numerical Simulation》(it is published in《Metal material and metallurgical engineering》, 2 months 2011
Volume 39, the 1st phase, author：Wang Ping, other prestige) in disclose based on the relevant theory of hydrodynamics, establish cupola well furnace bottom three
Dimension fluid numerical model, using Fluent softwares, have studied different dead stock column position, state and tapping hole sizes in blast furnace crucibe
Influence to molten iron flow in cupola well.Result shows：Dead stock column has and less causes furnace bottom iron flow larger to stove when floating
Bottom produces stronger erosion.The molten iron flow rates in free molten iron area are very fast when central one's will dies within one stock column size is big, otherwise slower；When tapping a blast furnace
When mouth diameter increases, the mass flow increase of molten iron, the molten iron circulation of cupola well bottom is significantly increased.It is disadvantageous in that：1)
The paper is based on the relevant theory of hydrodynamics, it is contemplated that different dead stock column position, state and tapping hole chis in blast furnace crucibe
The very little influence to molten iron flow in cupola well, describes in detail the fluid mechanic model of structure, consider molten iron flow and
Influence of the temperature field to blast-melted erosion；2) how the paper carries out numerical simulation using Fluent softwares if not being given
Method and step.
Paper two《The numerical simulation in blast furnace crucibe molten iron flow field》(it is published in national ironmaking production technology meeting in 2014 and refining
Iron Annual Conference collected works (on), author：Left beach, Hong Jun, Zhang Jianliang, Li Fengguang) in disclose using three-momentum conservation side
Journey, standard k-e two-equation models and porous media model, numerical simulation are carried out to cupola well molten iron flow under different condition and are divided
Analysis；Paper three《The numerical simulation of blast furnace crucibe molten iron circulation》(Northeastern University's master thesis, author：Guo Liang).The above two
Piece paper has the following disadvantages：1) influence that molten iron flow is brought to blast furnace crucible corrosion is only accounted for, the detailed of modeling is given
Thin step, it is considered to which factor is not complete, it is impossible to which actual response cupola well weathers state；2) do not have to be given and how to carry out numerical simulation
Method and step.
Chinese invention patent, Authorization Notice No.：CN102279091, authorized announcement date：2011.12.14, one kind is disclosed
The experimental provision and method of analog blast furnace cupola well furnace bottom molten iron flow, it includes that cylindrical shape transparent vessel, closure, air are dissipated
Hole, cold wind bustle pipe and dewatering outlet, the closure described in the invention are covered in the upper end of cylindrical vessel, the diameter and cylinder of closure
The internal diameter of shape transparent vessel is adapted；Described air dissipates hole and is arranged on closure；There is cold wind in the lower surface of closure
Bustle pipe, the described circular diameter of cold wind bustle pipe is adapted with the internal diameter of cylindrical shape transparent vessel；Set in the upper surface of closure
There is cold air inlet, cold air inlet is connected with cold wind bustle pipe；Multiple air outlets, air-out are evenly arranged with described cold wind bustle pipe
Mouthful towards in cylindrical shape transparent vessel；There are 2 dewatering outlets on cylindrical shape transparent vessel.It is disadvantageous in that：1) in cupola well
Dead stock column state is the principal element for influenceing cupola well molten iron flow, and the patent does not account for dead stock column state to cupola well molten iron stream
Dynamic influence, and do not provide the related hypothesis of dead stock column state；2) cupola well molten iron flow is influenceed by whole blast furnace, the invention
Other influence factors are not given with primary condition or it is assumed that the mesh of real analog blast furnace cupola well furnace bottom molten iron flow can not be reached
's；3) invention is the molten iron flow of analog blast furnace cupola well furnace bottom, does not have reference to the molten iron flow of whole cupola well.
The content of the invention
1. the invention technical problem to be solved
For in the prior art on the basis of process conditions, operating parameter, using Fluid Mechanics Computation is theoretical and method
To realize the problems of research to cupola well region, the invention provides a kind of blast furnace crucibe numerical simulation and resolution system
And its control method.It can simulate different condition, the scene of parameter, finally realize that user only needs to inputting process parameters, behaviour
Cupola well inside molten iron flow situation is can be obtained by as condition, existing for the temperature field of side wall and furnace bottom, Stress Field Distribution, and then
Erosion degree and its life-span to bosh gas index make rational judgement.
2. technical scheme
To solve the above problems, the technical scheme that the present invention is provided is：
A kind of blast furnace crucibe numerical simulation and resolution system, including dead stock column condition judgment module, cupola well molten iron flow mould
The platform that block and Flow and Temperature module are set up jointly, dead stock column condition judgment module is connected with cupola well molten iron flow module, institute
The platform stated is connected with dead stock column condition judgment module, cupola well molten iron flow module and Flow and Temperature module.
Preferably, described dead stock column condition judgment module judges dead stock column state, and it is heavy that described dead stock column state includes
Sit and float, described heavy seat includes completely heavy seat, the heavy seat of bottom centre and Chen Zuoqie centers are broken Jiao in the middle of bottom；Described
Float float including flat shape, pan bottom shape floats, flat shape floats and center is for broken burnt and pan bottom shape floats and center is broken Jiao.
Preferably, described platform carries out secondary development based on VS platforms to Fluent softwares, by the parameter setting of platform
Interface is set to the version that Chinesizes.
Preferably, the described cupola well new established model of molten iron flow module, the dead stock column Status unknown of the new established model, institute
The cupola well molten iron flow module stated builds cupola well molten iron flow model according to dead stock column state or cupola well molten iron parameter, the model
Known to dead stock column state；Described cupola well molten iron flow module calls Gambit to be modeled, and operation Fluent carries out fluid force
Model is learned to calculate.
Preferably, described Flow and Temperature module is newly-built or opens the Flow and Temperature model that has built up and enters line parameter
Operation is set, calls Gambit to be modeled, operation Fluent carries out fluid mechanic model calculating, generates files and reports.
Preferably, described cupola well molten iron flow module and Flow and Temperature module utilize COM technical operation Word documents
Export result is analyzed in the form of reporting；Described dead stock column state is stored in database, described database
Use Access the or sql server2008 databases of Microsoft.
Preferably, described platform uses OpenGL technology to drawing three-dimensional model diagram true to nature, for building cupola well and iron
Mouthful.
The control method of blast furnace crucibe numerical simulation and resolution system, its step is：
Step one, the above-described blast furnace crucibe numerical simulation of structure and resolution system；
Step 2, technological parameter are input to described dead stock column condition judgment module；
Step 3, described dead stock column condition judgment module judge the corresponding dead stock column state of technological parameter, are conveyed to
Platform and cupola well molten iron flow module；
Step 4, described cupola well molten iron flow module construction cupola well molten iron flow model, and carry out mesh modeling and stream
Mechanics are calculated, and export result is analyzed；
Step 5, described Flow and Temperature module obtain slag iron flow field, thermo parameters method in cupola well according to temperature parameter
And thermal stress distribution in the temperature field of cupola well bottom refractory, cupola well, generate data file.
Preferably, described Flow and Temperature module is newly-built or opens the model that has built up and carries out parameter setting operation,
Gambit is called to be modeled, operation Fluent carries out fluid mechanic model calculating.
Preferably, the described cupola well new established model of molten iron flow module, the dead stock column Status unknown of the new established model, institute
The cupola well molten iron flow module stated builds cupola well molten iron flow model according to dead stock column state or cupola well molten iron parameter, the model
Known to dead stock column state；Described cupola well molten iron flow module calls Gambit to be modeled, and operation Fluent carries out fluid force
Model is learned to calculate.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, is had the advantages that：
(1) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, by setting up cupola well region numerical simulation system
System and platform, parse influence of the working condition and key parameter inside cupola well to its state, and it is various that user only needs to input
Technological parameter, operating condition etc. can be obtained by the thermo parameters method of cupola well inside molten iron flow situation, side wall and furnace bottom, to sentence
The influence of the disconnected technological parameter, operating condition to blast furnace process provides foundation.Solve technological parameter, behaviour in actual production process
Make condition and obtain difficult problem；
(2) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, establish threedimensional model, display very true to nature
Bf model and its various change produced under different parameters, are that blast furnace worker judges cupola well molten iron flow situation and cupola well
Erosion condition more rational basis for estimation is provided；
(3) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, are carried out based on VS platforms to Fluent softwares
Secondary development, the problems such as solve non-Chinesizing interface when Fluent softwares are used and complicated parameter setting；
(4) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, by the technological parameter required for conventional art,
Key parameter is sub-category sets up inputting interface for operating condition, viscosity, temperature of slag iron etc., is set by user input, and provides silent
Recognize value.Simultaneously, it is contemplated that the opening of analog platform and be connected with the effective of other models, platform is provided and connect with other models
Mouthful, for example：When calculating dead stock column state using mechanical model, parameter is imported and exported, and carry out analytical calculation；
(5) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, using automatic calculating process, user completes defeated
After entering the parameter setting at interface, numerical simulation software platform can call the CFD software on backstage automatic to computational fields gridding, choosing
Selecting required model, equation discretization and alternative manner etc. carries out automatic imitation calculating, can so make modeling and the meter of CFD software
Calculate speed to improve 2-3 minutes or so, substantially increase the operating efficiency of staff；
(6) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, there is provided the result after the completion of calculating show with
Report generation, for example, in cupola well the slag iron in a certain section speed, Temperature Distribution etc.；User selects necessary parameter, automatic raw
Into analog result report；
(7) a kind of blast furnace crucibe numerical simulation of the invention and resolution system, metallurgy high furnace is mutually tied with Computer Simulation
Close, the cupola well of formation research software platform as a kind of research and development means and can change the experiment porch of technique and operating parameter,
It is that the optimization of blast furnace iron-making process from now on and innovation provide technical support.
Brief description of the drawings
Fig. 1 is system building flow chart of the invention；
Fig. 2 judges FB(flow block) for dead stock column of the invention；
The completely heavy seat states of Fig. 2 .1；
Fig. 2 .2 bottom centre is heavy to sit；
Chen Zuoqie centers are broken Jiao in the middle of Fig. 2 .3 bottoms；
The flat shapes of Fig. 2 .4 float；
Fig. 2 .5 pan bottom shapes float；
The flat shapes of Fig. 2 .6 float and center is broken Jiao；
Fig. 2 .7 pan bottom shapes float and center is broken Jiao；
Fig. 3 is use process flow diagram flow chart of the invention；
Fig. 4 is system construction drawing of the invention；
Fig. 5 is Fluent and Gambit data transfers flow chart of the invention；
Fig. 6 is parameter conveying flow figure of the invention；
Fig. 7 is Fluent secondary development flow chart of the invention；
Fig. 8 is cupola well parameter setting interface of the invention；
Fig. 9 is dead stock column condition adjudgement surface chart；
Figure 10 is Flow and Temperature COMPREHENSIVE CALCULATING module interfaces figure.
Specific embodiment
To further appreciate that present disclosure, with reference to drawings and Examples, the present invention is described in detail.
A kind of blast furnace crucibe numerical simulation and resolution system, including dead stock column condition judgment module, cupola well molten iron flow mould
The platform that block and Flow and Temperature module are set up jointly, dead stock column condition judgment module is connected with cupola well molten iron flow module, institute
The platform stated is connected with dead stock column condition judgment module, cupola well molten iron flow module and Flow and Temperature module；
Technological parameter is input to described dead stock column condition judgment module, and described dead stock column condition judgment module is judged
The corresponding dead stock column state of technological parameter, and platform and cupola well molten iron flow module are conveyed to, described cupola well molten iron flow mould
Block builds cupola well molten iron flow model, and carries out mesh modeling and hydrodynamics method, and export result is analyzed；It is described
Flow and Temperature module slag iron flow field, thermo parameters method and cupola well bottom refractory in cupola well are obtained according to temperature parameter
Thermal stress distribution in temperature field, cupola well, generates data file.
Three modules of whole platform intergration, including dead stock column condition judgment module, cupola well molten iron flow module and flow field temperature
Degree field COMPREHENSIVE CALCULATING module (Flow and Temperature module)；After technological parameter is input to dead stock column condition judgment module, in these ginsengs
On the basis of number, can read data parameters text (technological parameter i.e. in corresponding diagram 2) judge dead stock column it is heavy sit or
Float state, is mainly judged the heavy seat or float state of dead stock column, using mechanical model if float state enters
One step is calculated its levitation height, and then selected a certain kind state is modeled and does further in the state judged
Analysis；Wherein, cupola well molten iron flow module, mainly carries out overall analysis to the model set up, and model here is included extremely
The newly-built model of model and this module that stock column module judges, the model to setting up carries out parameter setting, calls CFD soft
Part carries out mesh modeling and hydrodynamics method, finally does last analysis to derived document result；Flow and Temperature synthesis
Computing module, newly-built models for temperature field, the influence that all influence factors of comprehensive descision are produced to bosh gas index.Consider possible shadow
The factor of sound, obtains slag iron flow field, the temperature field of thermo parameters method and cupola well bottom refractory, thermal stress distribution in cupola well, from
And judge their influences to bosh gas index.
Extremely stock column state is including heavy seat and floats, and described heavy seat is included in completely heavy seat, the heavy seat of bottom centre and bottom
Jian Chenzuoqie centers are broken Jiao；Described floating floats including flat shape, pan bottom shape floats, flat shape floats and center is broken Jiao
Float with pan bottom shape and center is broken Jiao.
Because the virtual condition of dead stock column is unpredictable, inventor according to existing blast furnace crucibe relevant parameter empirical value,
It is creative to assume that three kinds heavy are sat and four kinds float seven kinds of dead stock column states (three kinds are sunk seat and four kinds float and State of Blast Furnace totally
The relevant parameter empirical value of cylinder is associated) the possible various states of dead stock column are almost covered, can comprehensively reflect dead in cupola well
The state of stock column.
Described platform carries out secondary development based on VS platforms to Fluent softwares, and a Chinese is redesigned on VS platforms
The human-computer interaction interface of change, the interface of English original with Fluent softwares connects, and directly controls the relevant parameter at original interface),
The problems such as solving non-Chinesizing interface and the complicated parameter setting when Fluent softwares are used.
The new established model of cupola well molten iron flow module, the dead stock column Status unknown of the new established model, described cupola well molten iron
Flow module builds cupola well molten iron flow model according to dead stock column state or cupola well molten iron parameter, and the dead stock column state of the model is
Know；Described cupola well molten iron flow module calls Gambit to be modeled, and operation Fluent carries out fluid mechanic model calculating.
In the model construction process of cupola well molten iron flow module, Gambit pre-treatments, Fluent carries out Mathematical Modeling meter
Calculate and (redesign a human-computer interaction interface for Chinesizing, the interface of English original with Fluent softwares connects, directly controls original
The relevant parameter at interface, the problems such as solve non-Chinesizing interface when Fluent softwares are used and complicated parameter setting, using this
The mode of kind possesses advantages below：
1st, excessively specialized software (including Gambit and Fluent softwares) is realized into masses by conventional CFD software
Change；Each parameter that parameter interface intuitively reflects in the part of the above five；It is easy to operation；
2nd, existing modeling is relatively slow (5-6min) using the above-mentioned general response speed of software modeling system；The present invention changes
3min or so is realized after entering；
3rd, resource management optimization, this part please provide the scheme that can be realized.Some dead stock column state of selection, operation
Some module, produces data file；Another dead stock column state is selected, when possessing with upper one dead stock column state common parameters
Directly invoke；It is placed in a class equivalent to all of parameter, with then directly invoking.
Flow and Temperature module is newly-built or opens the model that has built up and carries out parameter setting operation, calls Gambit to carry out
Modeling, operation Fluent carries out fluid mechanic model calculating；Described Flow and Temperature module is not appointed with above two modules
What is associated, Gambit pre-treatments, and Fluent carries out Mathematical Modeling calculating, redesigns a human-computer interaction interface for Chinesizing, with
The interface of the original English of Fluent softwares connects, and directly controls the relevant parameter at original interface, solves Fluent softwares and uses
When non-Chinesizing interface and parameter setting it is complicated the problems such as.
Cupola well molten iron flow module and Flow and Temperature module are led using COM technical operation Word documents in the form of reporting
Go out document result to be analyzed；Described dead stock column state is stored in database, and described database uses Microsoft
Access or sql server2008 databases.Database aspect uses Access the or sql server2008 data of Microsoft
Storehouse, it is convenient succinct, the database access service of stabilization is externally provided, temperature, molten iron flow and dead stock column are all to use this resource
Optimization.
Described platform uses OpenGL technology to drawing three-dimensional model diagram true to nature, for building cupola well and Tie Kou.
Blast furnace crucibe numerical simulation and the control method of resolution system in accordance with the above, its step are as follows：
Step one, the above-described blast furnace crucibe numerical simulation of structure and resolution system；
Step 2, technological parameter are input to described dead stock column condition judgment module；
Step 3, described dead stock column condition judgment module judge the corresponding dead stock column state of technological parameter, are conveyed to
Platform and cupola well molten iron flow module；
Step 4, described cupola well molten iron flow module construction cupola well molten iron flow model, and carry out mesh modeling and stream
Mechanics are calculated, and export result is analyzed；The described cupola well new established model of molten iron flow module, the new established model
Dead stock column Status unknown, described cupola well molten iron flow module builds cupola well molten iron according to dead stock column state or cupola well molten iron parameter
Flow model, known to the dead stock column state of the model；Described cupola well molten iron flow module calls Gambit to be modeled, operation
Fluent carries out fluid mechanic model calculating.
Step 5, described Flow and Temperature module obtain slag iron flow field, thermo parameters method in cupola well according to temperature parameter
And thermal stress distribution in the temperature field of cupola well bottom refractory, cupola well, generate data file.Described Flow and Temperature module
The model that newly-built or opening has built up carries out parameter setting operation, calls Gambit to be modeled, and operation Fluent is flowed
Mechanics model is calculated.
Embodiment 1
A kind of blast furnace crucibe numerical simulation and resolution system of the present embodiment, as shown in figure 4, including dead stock column condition adjudgement
The platform that module, cupola well molten iron flow module and Flow and Temperature module (Flow and Temperature COMPREHENSIVE CALCULATING module) are set up jointly,
Dead stock column condition judgment module is connected with cupola well molten iron flow module, described platform and dead stock column condition judgment module, cupola well
Molten iron flow module and Flow and Temperature module are connected；
Technological parameter is input to described dead stock column condition judgment module, and described dead stock column condition judgment module is judged
The corresponding dead stock column state of technological parameter, and platform and cupola well molten iron flow module are conveyed to, described cupola well molten iron flow mould
Block builds cupola well molten iron flow model, and carries out mesh modeling and hydrodynamics method, and export result is analyzed；It is described
Flow and Temperature module slag iron flow field, thermo parameters method and cupola well bottom refractory in cupola well are obtained according to temperature parameter
Thermal stress distribution in temperature field, cupola well, generates data file.
Three modules of whole platform intergration, including dead stock column condition judgment module, cupola well molten iron flow module and flow field temperature
Degree field COMPREHENSIVE CALCULATING module (Flow and Temperature module)；After technological parameter is input to dead stock column condition judgment module, in these ginsengs
On the basis of number, can read data parameters text (technological parameter i.e. in corresponding diagram 2) judge dead stock column it is heavy sit or
Float state, is mainly judged the heavy seat or float state of dead stock column, using mechanical model if float state enters
One step is calculated its levitation height, and then selected a certain kind state is modeled and does further in the state judged
Analysis；Wherein, cupola well molten iron flow module, mainly carries out overall analysis to the model set up, and model here is included extremely
The newly-built model of model and this module that stock column module judges, the model to setting up carries out parameter setting, calls CFD soft
Part carries out mesh modeling and hydrodynamics method, finally does last analysis to derived document result；Flow and Temperature synthesis
Computing module, newly-built models for temperature field, the influence that all influence factors of comprehensive descision are produced to bosh gas index.Consider possible shadow
The factor of sound, obtains slag iron flow field, the temperature field of thermo parameters method and cupola well bottom refractory, thermal stress distribution in cupola well, from
And judge their influences to bosh gas index.
Embodiment 2
A kind of blast furnace crucibe numerical simulation and resolution system of the present embodiment, it is same as Example 1, wherein, dead stock column shape
State is including heavy seat and floats, and described heavy seat includes completely heavy seat, the heavy seat of bottom centre and Chen Zuoqie centers are broken in the middle of bottom
It is burnt；Described floating floats including flat shape, pan bottom shape floats, flat shape floats and center for broken burnt and pan bottom shape floats and in
The heart is broken Jiao.
Dead stock column is not burnt to pile up by coke and formed, and shape is different, because the virtual condition of dead stock column cannot be pre-
Survey, inventor according to existing blast furnace crucibe relevant parameter empirical value, it is creative to assume that three kinds heavy are sat and four kinds float altogether
Seven kinds of dead stock column states (three kinds heavy sit and four kinds float be associated with the relevant parameter empirical value of blast furnace crucibe) almost cover
The possible various states of dead stock column, can comprehensively reflect the state of dead stock column in cupola well, the ginseng that seven kinds of dead stock column states are related to
Number when corresponding parameter is in the range of empirical value, that is, is judged to this kind of dead stock column state in the range of a certain determination.
Such as Fig. 2, in the database of platform, the technological parameter and condition for being input into dead stock column are given for seven kinds of dead stock column state storages
Platform, is used to judge the state of dead stock column, it is proposed that model is analyzed, and produces destination file, analysis result file to draw a conclusion.
Such as Fig. 2 .1, sinking to sit completely includes following technological parameter and condition：Cupola well diameter D, height of the furnace hearth H and dead stock column hole
Porosity ε1, in Fig. 2, platform judges dead material according to the cupola well diameter, height of the furnace hearth and dead these parameters of stock column porosity that are input into
Whether the state of post is in completely heavy seat state.
Such as Fig. 2 .2, bottom centre sinks to sit includes cupola well diameter D, height of the furnace hearth H, dead stock column edge levitation height H1And H2、
Dead stock column and bottom surface contact width L1And L2With dead stock column porosity ε1And ε2, platform judges dead stock column according to above parameter
Whether state is in the heavy seat state of bottom centre.
Such as Fig. 2 .3, Chen Zuoqie centers are that broken Jiao includes that cupola well diameter D, height of the furnace hearth H, dead stock column edge are floated in the middle of bottom
Play height H1And H2, dead stock column and bottom surface contact width L1And L2, heart-broken burnt upper width L in dead stock column3And L4, dead stock column center
Broken burnt lower width L5And L6, dead stock column is without porosity ε on the outside of focus layer porosity ε, dead stock column1And ε4, dead stock column centre bore porosity
ε2And ε3, it is broken coke-like state that platform judges whether the state of dead stock column is in Chen Zuoqie centers in the middle of bottom according to above parameter.
Such as Fig. 2 .4, flat shape floats including cupola well diameter D, height of the furnace hearth H, dead stock column bottom surface levitation height H_
Floating, dead stock column porosity ε1With dead stock column without focus layer porosity ε3, platform judges the shape of dead stock column according to above parameter
Whether state is in flat shape float state.
Such as Fig. 2 .5, pan bottom shape floats including cupola well diameter D, height of the furnace hearth H, dead stock column edge levitation height H1And H2, it is dead
Stock column is without focus layer porosity ε and dead stock column porosity ε1, platform judges whether the state of dead stock column is according to above parameter
Pan bottom shape float state.
Such as Fig. 2 .6, flat shape floats and center is for broken Jiao includes that cupola well diameter D, height of the furnace hearth H, dead stock column bottom surface float
Heart-broken burnt lower width L in height H_floating, dead stock column1And L2, heart-broken burnt upper width L in dead stock column3And L4, dead material
Post is without porosity ε on the outside of focus layer porosity ε, dead stock column1And ε4, dead stock column centre bore porosity ε2And ε3, platform is according to above parameter
Whether the state to judge dead stock column floats in flat shape and center is broken coke-like state.
Such as Fig. 2 .7, pan bottom shape floats and center is for broken Jiao includes that cupola well diameter D, height of the furnace hearth H, dead stock column center float
Height H1, dead stock column edge levitation height H2And H3, heart-broken burnt lower width L in dead stock column1And L2, heart-broken burnt top in dead stock column
Width L3And L4, dead stock column is without porosity ε on the outside of focus layer porosity ε, dead stock column1And ε4, dead stock column centre bore porosity ε2And ε3, put down
Platform judges whether the state of dead stock column floats in pan bottom shape and center is broken coke-like state according to above parameter.
Embodiment 3
A kind of blast furnace crucibe numerical simulation and resolution system of the present embodiment, it is same as Example 1, wherein, cupola well molten iron
The new established model of flow module, the dead stock column Status unknown of the new established model, described cupola well molten iron flow module is according to dead material
Column state or cupola well molten iron parameter build cupola well molten iron flow model, known to the dead stock column state of the model；Described cupola well iron
Water flow module calls Gambit to be modeled, and operation Fluent carries out fluid mechanic model calculating.
In the model construction process of cupola well molten iron flow module, Gambit pre-treatments, Fluent carries out Mathematical Modeling meter
Calculate and (redesign a human-computer interaction interface for Chinesizing, the interface of English original with Fluent softwares connects, directly controls original
The relevant parameter at interface, the problems such as solve non-Chinesizing interface when Fluent softwares are used and complicated parameter setting, using this
The mode of kind possesses advantages below：
1st, excessively specialized software (including Gambit and Fluent softwares) is realized into masses by conventional CFD software
Change；Each parameter that parameter interface intuitively reflects in the part of the above five；It is easy to operation；
2nd, existing modeling is relatively slow (5-6min) using the above-mentioned general response speed of software modeling system；The present invention changes
3min or so is realized after entering；
3rd, resource management optimization, this part please provide the scheme that can be realized.Some dead stock column state of selection, operation
Some module, produces data file；Another dead stock column state is selected, when possessing with upper one dead stock column state common parameters
Directly invoke；It is placed in a class equivalent to all of parameter, with then directly invoking.
Cupola well molten iron flow module includes following parameter：Cupola well diameter, height of the furnace hearth, ladle heel layer height, iron mouthful diameter, iron
Mouth depth, Tie Kou inclination angles, the thickness of resistance to material, taphole mud bag front-end radius, taphole mud bag back-end radius, furnace bottom brick fuel height, furnace bottom
Brick fuel radius, side wall straight section height, the oblique section upper radius of side wall, iron mouthful absolute altitude, molten iron level height and air port absolute altitude；Also include
(entrance refers to molten iron level, and inlet mass refers to the quality of molten iron level, entrance pressure for following parameter inlet mass, inlet pressure
Power refers to the pressure of molten iron level), molten iron density, molten iron viscosity, slag density, cinder viscosity and slag thickness, cupola well molten iron
Flow module is according to the new established model of above parameter.
Embodiment 4
A kind of blast furnace crucibe numerical simulation and resolution system of the present embodiment, it is same as Example 1, wherein, flow field temperature
Module is newly-built or opens the model having built up and carries out parameter setting operation, calls Gambit to be modeled, and runs Fluent
Carry out fluid mechanic model calculating；Described Flow and Temperature module and above two modules (dead stock column condition judgment module and
Cupola well molten iron flow module) without any association, Gambit pre-treatments, Fluent carries out Mathematical Modeling calculating, redesigns one
The human-computer interaction interface of individual Chinesizing, the interface of English original with Fluent softwares connects, and directly controls the corresponding ginseng at original interface
Number, the problems such as solve non-Chinesizing interface when Fluent softwares are used and complicated parameter setting.
Cupola well molten iron flow module and Flow and Temperature module are led using COM technical operation Word documents in the form of reporting
Go out document result to be analyzed；Described dead stock column state is stored in database, and described database uses Microsoft
Access or sql server2008 databases.Database aspect uses Access the or sql server2008 data of Microsoft
Storehouse, it is convenient succinct, the database access service of stabilization is externally provided, temperature, molten iron flow and dead stock column are all to use this resource
Optimization.
Flow and Temperature module includes following parameter：Cupola well diameter, height of the furnace hearth, ladle heel layer height, iron mouthful diameter, Tie Kou
Depth, Tie Kou inclination angles, the thickness of resistance to material, taphole mud bag front-end radius, taphole mud bag back-end radius, furnace bottom brick fuel height, furnace bottom charcoal
Brick radius, side wall straight section height, the oblique section upper radius of side wall, iron mouthful absolute altitude, molten iron level height and air port absolute altitude；Above parameter
It is identical with cupola well molten iron flow module, in addition, also including temperature field inlet mass, temperature field molten iron thermal coefficient of expansion, temperature
Degree field molten iron thermal capacitance, temperature field molten iron thermal conductivity factor, temperature field Coke density, temperature field coke thermal capacitance, temperature field thermal conductivity factor,
Temperature field inlet temperature, temperature field Nai Cai sides wall and temperature field Nai Cai bottoms.
Embodiment 5
A kind of blast furnace crucibe numerical simulation and resolution system of the present embodiment, it is same as Example 1, wherein, described is flat
Stylobate carries out secondary development in VS platforms to Fluent softwares, and man-machine interaction circle for Chinesizing is redesigned on VS platforms
Face, the interface of English original with Fluent softwares connects, and directly controls the relevant parameter at original interface, solves Fluent softwares
The problems such as non-Chinesizing interface and parameter setting when using are complicated, described platform is using OpenGL technology to drawing three-dimensional true to nature
Illustraton of model, for building cupola well and Tie Kou.
Such as Fig. 5, VS platforms read Parameter File and (correspond to dead stock column judge module, cupola well molten iron flow mould in embodiment 2-4
The parameter of block and Flow and Temperature module), model is set up according to the parameter module for reading, then set on VS platform interfaces
Parameter, reading database information, using Gambit mesh modelings, operation Fluent carries out fluid mechanic model calculating, generation knot
Fruit file.
Such as Fig. 6, the variable of VS platform interfaces |input paramete storage to VS platforms definition, replacement Journal file respective counts
According to Gambit reads data, and operation Gambit carries out geometric network modeling, and operation Fluent carries out hydrodynamics method.
Embodiment 6
A kind of blast furnace crucibe numerical simulation of the present embodiment and the control method of resolution system, it is adaptable to embodiment 1-5, its
Step is as follows：
Step one, the above-described blast furnace crucibe numerical simulation of structure and resolution system；
Step 2, technological parameter (the related parameter of dead stock column state in correspondence embodiment) are input to described dead stock column shape
State judge module；
Step 3, as shown in Fig. 2 described dead stock column condition judgment module judges the corresponding dead stock column shape of technological parameter
State, is conveyed to platform and cupola well molten iron flow module；
Step 4, described cupola well molten iron flow module construction cupola well molten iron flow model, and carry out mesh modeling and stream
Mechanics are calculated, and export result is analyzed；The described cupola well new established model of molten iron flow module, the new established model
Dead stock column Status unknown, described cupola well molten iron flow module builds cupola well molten iron according to dead stock column state or cupola well molten iron parameter
Flow model, known to the dead stock column state of the model；Described cupola well molten iron flow module calls Gambit to be modeled, operation
Fluent carries out fluid mechanic model calculating, such as Fig. 5 and Fig. 6；
Step 5, described Flow and Temperature module obtain slag iron flow field, thermo parameters method in cupola well according to temperature parameter
And thermal stress distribution in the temperature field of cupola well bottom refractory, cupola well, generate data file, described Flow and Temperature module
The model that newly-built or opening has built up carries out parameter setting operation, calls Gambit to be modeled, and operation Fluent is flowed
Mechanics model is calculated.
Embodiment 7
A kind of blast furnace crucibe numerical simulation of the present embodiment and the construction method of resolution system, as shown in figure 1, its step
For：
(1) design of database is completed；
(2) login module is set up；
(3) set up and complete module selection function；
(4) set up and complete cupola well molten iron flow module；
(5) set up and complete dead stock column and judge block of state；
(6) set up and complete Flow and Temperature module；
(7) set up and complete the contact of each intermodule；
(8) test and maintenance of allomeric function are carried out to whole system.
Embodiment 8
A kind of blast furnace crucibe numerical simulation of the present embodiment and the application method of resolution system, as shown in fig. 7, flat into VS
The parameter setting interface (such as Fig. 8-10 is three parameter setting surface charts of module) of platform exploitation, arrange parameter judges whether full
Foot, each parameter value here has the scope for determining substantially, be exactly here the value of arrange parameter whether within this range, such as
Fruit is, in storage parameter to database, if it is not, Reparametrization is untill satisfaction, changes the Journal of Gambit
File, operation Gambit generation network files, generation model, (boundary condition refers to entrance matter for conditions setting, physical parameter
Amount and inlet pressure, physical parameter refers to molten iron density and molten iron viscosity) judge whether to meet, if it is, modification Fluent
Journal files, run Fluent, generate result of calculation figure, log off.
During tapping a blast furnace, iron mouthful parameter and system of tapping a blast furnace can produce influence, therefore research iron mouthful to molten iron flow
Parameter (tapping hole depth, Tie Kou inclination angles, mud drum state), system of tapping a blast furnace (iron mouthful opening number, tapping duration interval etc.) is to slag iron
Flow field, the influence of the thermo parameters method of refractory material, are different from the past, iron mouthful parameter (tapping hole depth, Tie Kou inclination angles, mud drum
State) and system of tapping a blast furnace (the open number of iron mouthful, tapping duration interval etc.) all can be to change at any time.
Because influence factor is changeable, under simulation special operation condition (when such as checking, damping down, stifled air port, iron mouth are safeguarded), cupola well
Interior slag iron flowing, the thermo parameters method of refractory material, the various possible operating modes of comprehensive simulation, to processing prominent in actual production process
Hair event has directive significance.
Embodiment 9
A kind of blast furnace crucibe numerical simulation of the present embodiment and the operating method of resolution system, as shown in figure 3, its step
For：
(1) log in
Correct username and password is input into, is verified into module selection.
(2) basic setup
In module selection interface, if log in using this platform for the first time, the peace of operating path, CFD software need to be set
The relevant informations such as dress path and version number.Also some basic operations, including addition, deletion and modification can be carried out to user.
(3) select and enter module
If selected for dead stock column condition judgment module, the module contains and all judges that dead stock columns sink seat or float state
Affecting parameters, by the setting to these parameters, calculate heavy seat or float (while calculating levitation height), and selection is a certain heavy
Sit or a certain float state is modeled, then further made a concrete analysis of；
If selection cupola well molten iron flow module, new established model or opening are set up according to dead stock column condition judgment module
Model carry out relative influence parameter setting, call CFD software to carry out geometric grid modeling and hydrodynamics method, generation is corresponding
Data file, finally data file is analyzed, it was therefore concluded that；
If into Flow and Temperature COMPREHENSIVE CALCULATING module, new established model, arrange parameter calls CFD software, analyzes number
According to, it was therefore concluded that.Meanwhile, can check in each module, open the model that has built up and derive word document last.
In cupola well molten iron flow module and Flow and Temperature COMPREHENSIVE CALCULATING module, the detailed of the model that has created is can also look at
Thin information, it is also possible to delete the model for being computed completing.
(4) log off
After completing analysis to model, can log off, also repeating the new established model of step (3) carries out correlation analysis.
Dead stock column condition adjudgement, cupola well molten iron flow, Flow and Temperature COMPREHENSIVE CALCULATING are integrated in a platform by the present invention,
The possible operating mode of dead stock column is simulated, and considers various possible influence factors, more truly reflect cupola well iron
The behavior of water flowing, has certain directive significance to the work of actual blast furnace.
In the prior art only for wherein certain simulation of part research to MOLTEN STEEL FLOW behavior, it is considered to which factor is more single
One, MOLTEN STEEL FLOW situation be many factors influence structure, in the prior art although it is contemplated that certain some factors can also realize it is right
The simulation of MOLTEN STEEL FLOW situation, but it is smaller to real work directive significance, and effect is poor, it is impossible to enough true reflection MOLTEN STEEL FLOWs
Behavior；The duty parameter of present invention simulation is more, the behavior of more true reflection MOLTEN STEEL FLOW；
Embodiment 10
A kind of blast furnace crucibe numerical simulation and resolution system of the present embodiment, are with benchmark model as base during new established model
What plinth was set up, in the cupola well new established model of molten iron flow module, single iron mouthful or double iron mouthful can be selected, and have completely heavy
Sit, it is heavy in the middle of bottom sit, in the middle of bottom Chen Zuoqie centers for broken burnt, flat shape floats, pan bottom shape floats, flat shape floats and in
The heart is that broken burnt and pan bottom shape floats and center is that broken burnt seven kinds dead stock column states may be selected, and in Flow and Temperature COMPREHENSIVE CALCULATING mould
It is also to be set up based on benchmark model during the new established model of block, equally there are seven kinds of dead stock column states optional, but can only single iron
Mouth mold type.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case where the invention objective is not departed from, is designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of blast furnace crucibe numerical simulation and resolution system, it is characterised in that including dead stock column condition judgment module, cupola well iron
The platform that water flow module and Flow and Temperature module are set up jointly, dead stock column condition judgment module and cupola well molten iron flow module
Connection, described platform is connected with dead stock column condition judgment module, cupola well molten iron flow module and Flow and Temperature module.
2. a kind of blast furnace crucibe numerical simulation according to claim 1 and resolution system, it is characterised in that described dead material
Post condition judgment module judges dead stock column state, dead stock column state include it is heavy sit and float, described heavy seat includes sinking completely sitting,
The heavy seat with Chen Zuoqie centers in the middle of bottom of bottom centre is broken Jiao；Described floating floats including flat shape, pan bottom shape floats, put down
Bottom shape floats and center is for broken burnt and pan bottom shape floats and center is broken Jiao.
3. blast furnace crucibe numerical simulation according to claim 1 and resolution system, it is characterised in that described platform is based on
VS platforms carry out secondary development to Fluent softwares, and the parameter setting interface of platform is set into the version that Chinesizes.
4. blast furnace crucibe numerical simulation according to claim 1 and resolution system, it is characterised in that described cupola well molten iron
The new established model of flow module, the dead stock column Status unknown of the new established model, described cupola well molten iron flow module is according to dead material
Column state or cupola well molten iron parameter build cupola well molten iron flow model, known to the dead stock column state of the model；Described cupola well iron
Water flow module calls Gambit to be modeled, and operation Fluent carries out fluid mechanic model calculating.
5. blast furnace crucibe numerical simulation according to claim 1 and resolution system, it is characterised in that described flow field temperature
Module is newly-built or opens the Flow and Temperature model having built up and carries out parameter setting operation, calls Gambit to be modeled,
Operation Fluent carries out fluid mechanic model calculating, generates files and reports.
6. blast furnace crucibe numerical simulation according to claim 1 and resolution system, it is characterised in that described cupola well molten iron
The export result in the form of reporting is divided using COM technical operation Word documents for flow module and Flow and Temperature module
Analysis；Described dead stock column state is stored in database, and described database uses the Access or sql of Microsoft
Server2008 databases.
7. the blast furnace crucibe numerical simulation and resolution system according to claim 1-6, it is characterised in that described platform is adopted
With the three-dimensional model diagram that OpenGL technology to drawing is true to nature, for building cupola well and Tie Kou.
8. the control method of the blast furnace crucibe numerical simulation according to claim 1-6 and resolution system, it is characterised in that：
Blast furnace crucibe numerical simulation and resolution system described in step one, structure claim 1；
Step 2, technological parameter are input to described dead stock column condition judgment module；
Step 3, described dead stock column condition judgment module judge the corresponding dead stock column state of technological parameter, are conveyed to platform
With cupola well molten iron flow module；
Step 4, described cupola well molten iron flow module construction cupola well molten iron flow model, and carry out mesh modeling and fluid force
Learn and calculate, export result is analyzed；
Step 5, described Flow and Temperature module obtain slag iron flow field, thermo parameters method and stove in cupola well according to temperature parameter
Thermal stress distribution in the temperature field of cylinder bottom refractory, cupola well, generates data file.
9. the control method of blast furnace crucibe numerical simulation according to claim 8 and resolution system, it is characterised in that：It is described
Flow and Temperature module it is newly-built or open the model that has built up and carry out parameter setting operation, call Gambit to be modeled,
Operation Fluent carries out fluid mechanic model calculating.
10. the control method of blast furnace crucibe numerical simulation according to claim 8 and resolution system, it is characterised in that：Institute
The cupola well new established model of molten iron flow module stated, the dead stock column Status unknown of the new established model, described cupola well molten iron flow
Module builds cupola well molten iron flow model according to dead stock column state or cupola well molten iron parameter, known to the dead stock column state of the model；
Described cupola well molten iron flow module calls Gambit to be modeled, and operation Fluent carries out fluid mechanic model calculating.
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| CN114058749A (en) * | 2021-11-29 | 2022-02-18 | 山西晋煤集团技术研究院有限责任公司 | Method for researching degradation of smokeless lump coal in blast furnace |
| CN114058749B (en) * | 2021-11-29 | 2023-02-10 | 山西晋煤集团技术研究院有限责任公司 | Method for researching degradation of smokeless lump coal in blast furnace |
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