CN102021260A - Blast furnace inside monitoring system - Google Patents
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- CN102021260A CN102021260A CN2009101875090A CN200910187509A CN102021260A CN 102021260 A CN102021260 A CN 102021260A CN 2009101875090 A CN2009101875090 A CN 2009101875090A CN 200910187509 A CN200910187509 A CN 200910187509A CN 102021260 A CN102021260 A CN 102021260A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 95
- 239000010949 copper Substances 0.000 claims abstract description 83
- 229910052802 copper Inorganic materials 0.000 claims abstract description 83
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000002893 slag Substances 0.000 claims abstract description 60
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- 239000011819 refractory material Substances 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 210000003205 muscle Anatomy 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 7
- 238000004801 process automation Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
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- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000009795 derivation Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000013480 data collection Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 239000003245 coal Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
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- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention discloses a blast furnace internal type monitoring system, which mainly comprises a PLC system, a DSC system, an OPC server, an SQL database technology, a serial port isolation technology, an asynchronous communication technology and a WEB display technology, and is characterized in that a blast furnace data acquisition system and a processing system, a blast furnace copper cooling wall temperature and slag crust thickness calculation system and a blast furnace type fluctuation early warning system are respectively established on the basis, and all subsystems are organically combined together through OPC serial port communication, an SQL database and a high-speed Ethernet. The invention can effectively monitor the thickness of the copper cooling wall hot surface slag skin in a high heat load area of the blast furnace, namely the inner shape of the blast furnace, form a high-speed blast furnace type furnace condition information channel with strong calculation capability between the blast furnace and the main control chamber, guide the operation of the blast furnace under abnormal furnace conditions such as the thickness or reduction of the slag skin in the high heat load area of the blast furnace and ensure the stable, smooth and long service life of the blast furnace.
Description
Technical field
The present invention relates to the real time on-line monitoring system of a kind of modern large blast furnace copper cooling wall hot-face temperature and blast furnace lines.
Background technology
The blast furnace process energy consumption accounts for 60% of Iron And Steel Industry total energy consumption, is the energy consumption rich and influential family of Iron And Steel Industry, and its energy efficiency has a high potential.Blast furnace from the investment construction in early stage to the smelting production in later stage, again to during in repair, overhaul, blast furnace maintenance investment is huge.Therefore both at home and abroad each iron and steel enterprise all means such as the utilization coefficient by improving blast furnace, strengthening smelting excavate the potentiality of blast furnace so that the maximizing the benefits of blast furnace, but so just unavoidably increased the burden in blast furnace high heat load zone, even reduced the work-ing life of blast furnace greatly, the life-span that throughput how to give full play to blast furnace does not reduce blast furnace again is a difficult problem of pendulum in face of iron industry.With regard to blast furnace was long-lived, main restricted link was in blast furnace high heat load zone, comprising cupola well furnace bottom area and bosh, furnace bosh and restoration of lower stack zone.Original cast-iron cooling wall and copper cooling plate just are difficult to reach above-mentioned these efficient, long-lived targets.The end of the seventies, the use of copper cooling wall on blast furnace that begin one's study of European manufacturer.Germany's love grace wished well that Usiminas and Di Sen Iron And Steel Company cooperated in 1979, was 2101m at volume
3Han Boen steel mill No. 4 blast furnace stacks middle part 2 copper cooling walls made from rolled sheet material have been installed.Blowing out inspection after 9 years is installed in contiguous cast-iron cooling wall and all ftractures, water-cooled tube or exposure or damage, and these 2 copper cooling walls are still very new.In No. 6 blast furnace stack bottoms of Di Sen Iron And Steel Company copper cooling wall was installed in 1988 and is carried out type approval test, the damping down inspection is found, contiguous cast-iron cooling wall cracking, and copper cooling wall is as excellent as before.Repeatedly type approval test shows: the result of use of copper cooling wall on blast furnace is very good.Therefore, generally adopt the copper cooling wall cooling technology at restoration of lower stack furnace bosh and bosh high heat load zone modern blast furnace.Many in the world blast furnaces have used copper cooling wall over nearly 10 years, and life-span that we can say cooling stave is directly determining the work-ing life of blast furnace.Require its hot-face temperature less than 160 ℃ according to copper material, the copper cooling wall hot side needs one deck slag crust protective layer, and thickness of the slag crust suitably and will stablize can reduce copper cooling wall zone thermosteresis and keep the reasonable operation type of furnace.Because modern large blast furnace adopts " high utilization factor, low coke ratio, big coal injection, long lifetime " operation policy, after injecting coal quantity was near 180kg/t, bosh, furnace bosh, restoration of lower stack became extreme high heat load district, were in the cohesive zone formation range, being subjected to high temperature and high speed coal gas stream washes away, heat flow rate per unit area is big, and temperature variation is big, and copper cooling wall hot side slag crust changes easily, the one, the slag crust knot is thick, the 2nd, slag crust comes off, and destroys the operation type of furnace, causes working of a furnace fluctuation.According to for a long time working of a furnace tracking investigation being analyzed, except that equipment and crude fuel reason, 80% working of a furnace fluctuation is relevant with the variation of the operation type of furnace, especially the slag crust big area, frequently come off and cause the uncontrollable fluctuation of furnace temperature; And the thick coal gas distributions that causes of slag crust knot is not normal and then pipeline occurs, collapse phenomenon such as material, even adopt the burden distribution system at loose edge also not have effect; Even do not have positive effect if tie thick serious the employing in the prepurging measure short period of time yet.And near the blast furnace copper cooling wall hot side the abominable zone that a high temperature, high pressure, highly corrosive, high heat shake, do not allow to be equipped with test set, even test set has been installed, its accuracy and reliability can not get guaranteeing, can not satisfy modern big blast furnace quantity-produced requirement.
Patent " intelligent monitoring method for cooling wall of blast furnace " (publication number CN 101319256A, open day on December 10th, 2008) in the text, application is the blast-furnace cast iron cooling stave, use the non-linear regression mode to extract the heat transfer kernel model, draw the detection model of cooling stave hot side maximum temperature value and form monitoring of software in conjunction with kernel model and artificial neural network, mainly the problem of Xie Jueing is the working order of monitoring cast-iron cooling wall, guarantee the security of cast-iron cooling wall, do not relate to the monitoring of blast furnace copper cooling wall and blast furnace lines.
Patent " a kind of method of measuring blast furnace lining " (publication number CN 101275829A, open day on October 1st, 2008) in the text, extrapolate the method for blast furnace hearth corroding thickness with the data of thermopair detection, implementing the zone is bottom house cupola well zone, does not relate to the monitoring to thickness of the slag crust and blast furnace lines in the blast furnace high heat load district stove.
Summary of the invention
The object of the present invention is to provide a kind of blast furnace lines Monitoring systems, this system can monitor effectively that copper cooling wall hot side thickness of the slag crust is a blast furnace lines in the blast furnace high heat load district, between blast furnace and master control room, form a high speed, blast furnace design working of a furnace information channel that computing power is powerful, instruct blast furnace operating at blast furnace high heat load district slag crust knot under the unusual working of a furnace such as thick or attenuate, guarantee that conditions of blast furnace is stable, direct motion and longevity.
The present invention is in integrated PLC system, the DSC system, opc server, the SQL database technology, the serial ports isolation technology, asynchronous communications, on the basis of advanced meanses such as WEB technique of display, a kind of blast furnace copper cooling wall temperature and thickness of the slag crust computation model have been developed, set up blast furnace data collecting system and treatment system respectively, blast furnace copper cooling wall temperature and thickness of the slag crust computing system, blast furnace design fluctuation early warning system, by the OPC serial communication, SQL database and Fast Ethernet combine each subsystem, have formed the complete blast furnace lines Monitoring systems of a cover.
1. data collecting system and treatment system are used to collect the required input parameter of temperature computation model, are realized by following mode: blast furnace comprises subsystems such as blast-furnace body, material loading, hotblast stove, casting house.Its automatic control system is divided into basic automatization (one-level) and process automation (secondary), and reservation management automatization (three grades) interface, monitor the working of a furnace for convenience, blast furnace is provided with hundreds and thousands of check points, and the blast furnace lines Monitoring systems is mainly gathered following parameter: data such as each section of blast furnace cooling water inlet temperature out, water coolant discharge, copper cooling wall thermopair check point temperature.In order to ensure the safety of level two, require the blast furnace lines Monitoring systems on data communication, to be independent of the level two of blast furnace, set up independent database.One-level basic automatization PLC Controlling System has adopted the Tsx Quantum series of Schneider company, and DCS Server mode is adopted in upper monitoring, interconnects by EPA to communicate.The DCS server adopts C/S model, supports up-to-date OPC technology, and the opc server that meets the OPC standard is provided.MSSQL SERVER database is adopted on secondary process automation backstage, by writing the OPC service routine, gathers the data of DCS server S erver and is accomplished to the data dump of MSSQL SERVER.The timed interval of system acquisition data is 5 seconds, gather nearly 600 data collection points from DCS server S erver end altogether, consider the different purposes of different pieces of information, in the data dump process, be dumped among the MSSQL SERVER by 600 data collection points are divided into 2 tables by purposes, set up read-only mapping by MSSQL SERVER client terminal.Read secondary process automation system data, make up blast furnace lines Monitoring systems MSSQL SERVER data platform.In view of data collecting system and treatment system are that mode by serial communication realizes data transmission between DSC server and the OPC client, and serial communication should have characteristics seldom because of its exclusivity and in the common computer communication, realize the ICP/IP protocol isolation of level two and three-level system, improved safety of data.
2. blast furnace copper cooling wall temperature and thickness of the slag crust computing system are used to calculate blast furnace high heat load zone each section copper cooling wall hot-face temperature and thickness of the slag crust.Can conduct heat the monoblock cooling stave is divided into two parts, and a part is the muscle rib, thinks that material is a kind of; Another part is copper and refractory materials combination, and the heat flow rate per unit area of monoblock cooling stave is the mean value of the two.The heat flow rate per unit area q of monoblock cooling stave can utilize cooling water parameter to calculate, as expression formula (1):
Wherein, q-copper cooling wall heat flow rate per unit area (kw/m
2), c-water coolant specific heat capacity (kJ/ (kgk), m-unit time internal cooling discharge (kg/s), t-water coolant leaving water temperature(LWT) (℃), t
0The water coolant water inlet (℃), F-copper cooling wall surface-area (m
2).
Muscle rib heat flow rate per unit area q
1, as expression formula (2):
Wherein, q
1-heat flow rate per unit area (kw/m
2), λ-copper cooling wall thermal conductivity (w/ (mk)), t
X2-copper cooling wall hot-face temperature (℃), t
2-muscle rib check point temperature (℃), Δ x
2-hot side and check point distance (m).
Copper and refractory materials built-up section heat flow rate per unit area q
2Calculate as expression formula (3):
Wherein, q
2-heat flow rate per unit area (kw/m
2), t
X1-inlay the refractory materials hot-face temperature (℃), t
i-temperature of cooling water (℃), b-inlays refractory thickness (m), a-copper cooling wall wall thickness half (m), 1
1-water pipe spacing (m), λ-copper cooling wall thermal conductivity (w/ (m.k)), λ
1-inlay refractory materials thermal conductivity (w/ (mk)), d-water-cooled tube diameter (m), α water coolant heat transfer coefficient (w/ (m
2K)).
Monoblock copper cooling wall heat flow rate per unit area can be passed through expression formula (4) and calculate:
By above derivation, just can extrapolate copper cooling wall hot-face temperature and heat flow rate per unit area.Under the situation of trying to achieve copper cooling wall hot-face temperature and heat flow rate per unit area, be that slag crust solidifies the boundary temperature condition with 1150 ℃, can go out copper cooling wall hot side thickness of the slag crust by inverse according to expression formula (5) and expression formula (6).
By
As can be known:
Wherein, q-heat flow rate per unit area (kw/m
2), λ-thermal conductivity (w/ (mk)), t-slag crust solidify boundary temperature (℃), t
x-copper cooling wall hot-face temperature (℃), Δ x-thickness of the slag crust (m).
3. blast furnace design fluctuation early warning system is based on the graphical dynamic display system of blast furnace lines of Ajax technology, and it can reflect the changing conditions of type in the blast furnace copper cooling wall in real time, classifying alarm is provided for the blast furnace operating person at master control room.The thickness of the slag crust of the inner all directions of periodic refreshing blast furnace copper cooling wall, and to three intervals of thickness of the slag crust definition, be respectively that the normal interval of slag crust, slag crust are tied between thick interval and slag crust thinning area.When a certain direction of the blast furnace copper cooling wall thickness of the slag crust value that falls falls into first when interval, red display thickness of the slag crust point illustrates at this direction slag crust number of times that comes off more frequently, and thickness of the slag crust is thinner.When a certain direction of the blast furnace copper cooling wall thickness of the slag crust value that falls falls into second when interval, the green thickness of the slag crust point that shows of system represents that the present type of furnace is normal, does not need the human intervention blast furnace operating.When a certain direction of the blast furnace copper cooling wall thickness of the slag crust value that falls falls into the 3rd when interval, red display thickness of the slag crust point illustrate and ties thick at this direction slag crust.Ajax introduces intermediary-Ajax engine between user and server, by it be responsible for the compiling user interface and and server between mutual, it allows asynchronous the carrying out of reciprocal process between user and the application software, and be independent of mutual between user and server, thereby eliminated the shortcoming of processing-wait in the network interaction process-processing-wait, when the user needs server data, call the Ajax engine and produce a Http request to server by Javascript, and server passes to client terminal with data query by the XML document form, is still resolved by DOM and the renewal html page by the Ajax engine in client terminal.
The present invention compared with prior art has following beneficial effect:
1, the blast furnace operating personnel can effectively monitor copper cooling wall temperature and heat flow rate per unit area at master control room.
2, can long-rangely check blast furnace lines in whole local area network inside, guarantee the long-lived and working of a furnace stable smooth operation of blast furnace.
Description of drawings
Fig. 1 is a workflow diagram of the present invention;
Fig. 2 is data collecting system and treatment system workflow diagram among the present invention;
Fig. 3 is the copper cooling wall side sectional view;
Fig. 4 is fluctuation of blast furnace copper cooling wall hot side thickness of the slag crust and early warning synoptic diagram.
Embodiment
Below in conjunction with specific embodiment blast furnace lines Monitoring systems of the present invention is further described:
Present embodiment is with certain iron work 3200m
3Blast furnace is an objective for implementation.As shown in Figure 1, the present invention mainly comprises following three parts: data collecting system and treatment system, copper cooling wall temperature and thickness of the slag crust computing system, blast furnace design fluctuation early warning system.
Data collecting system and treatment system, as shown in Figure 2.It is used to collect the required input parameter of temperature computation model, is realized by following mode: blast furnace comprises subsystems such as blast-furnace body, material loading, hotblast stove, casting house.Its automatic control system is divided into basic automatization (one-level) and process automation (secondary), and reservation management automatization (three grades) interface, monitor the working of a furnace for convenience, blast furnace is provided with hundreds and thousands of check points, and the blast furnace Monitoring systems is mainly gathered following parameter: data such as each section of blast furnace cooling water inlet temperature out, water coolant discharge, copper cooling wall thermopair check point temperature.For the safety of system, require the blast furnace lines Monitoring systems to be independent of the level two of blast furnace, set up independent database.One-level basic automatization PLC Controlling System has adopted the Tsx Quantum series of Schneider company, and DCS Server mode is adopted in upper monitoring, interconnects by EPA to communicate.The DCS server adopts C/S model, supports up-to-date OPC technology, and the opc server that meets the OPC standard is provided.MSSQL SERVER database is adopted on secondary process automation backstage.By writing the OPC service routine, gather the data of DCS server S erver and be accomplished to the data dump of MSSQL SERVER.The timed interval of system acquisition data is 5 seconds, gather nearly 600 data collection points from DCS server S erver end altogether, comprise data such as blast-furnace body, material loading, hotblast stove, casting house system, consider the different purposes of different pieces of information, in the data dump process, be dumped among the MSSQLSERVER by 600 data collection points are divided into 2 tables by purposes, set up read-only mapping by MSSQL SERVER client terminal.Read secondary process automation system data, make up blast furnace lines Monitoring systems MSSQL SERVER data platform.In view of data collecting system and treatment system are that mode by serial communication realizes data transmission between DSC server and the OPC client, and serial communication is because of its exclusivity and the characteristics seldom used in common computer, realized the ICP/IP protocol isolation of level two and three-level system, safety of data is provided.
Blast furnace copper cooling wall temperature and thickness of the slag crust computing system, use following steps: as shown in Figure 3, certain iron work 3200m
3Blast furnace copper cooling wall physical structure is thickness 125mm, and hot side processing dovetail-indent is evenly distributed 28 edge brick dovetail-indents in short transverse, spacing 104mm, depth of dovetail 30mm, dovetail-indent width 50mm, the wide 54mm of muscle, muscle degree of depth 30mm is with fixed silicon nitride combined with silicon carbide refractory material.Every has 4 passage Φ 50mm water service pipes, channel pitch 220mm, and every channel resistance loss 0.012Mpa, water flow velocity is stabilized in 2.0m/s, and soft water flow and pressure basic fixed have only just to allow to regulate flow and pressure under special circumstances.Soft water temperature in, temperature out are provided with the online detection of galvanic couple.A copper cooling wall has 2 galvanic couple detected temperatures to change, and wall body detects galvanic couple and gos deep into half (x of wall body
1=47.5mm).The muscle rib detects the relatively dark (x of the galvanic couple degree of depth
2=90.5mm).t
1And t
2Be respectively that thermopair is at x
1And x
2The temperature value that place's check point detects.Under the prerequisite of physics value that obtains cooling water intakeoutfall temperature, check point electric thermo-couple temperature, various materials and copper cooling wall physical structure parameter, just can use following steps and calculate copper cooling wall hot side thickness of the slag crust:
1) at first can be divided into two parts to the heat transfer of monoblock cooling stave, a part is the muscle rib, thinks that material is a kind of; Another part is copper and refractory materials combination, and the heat flow rate per unit area of monoblock cooling stave is the mean value of the two:
Wherein, q
1-muscle rib heat flow rate per unit area (kw/m
2), q
2-copper and refractory materials built-up section heat flow rate per unit area.
2) the heat flow rate per unit area q of monoblock cooling stave can utilize cooling water parameter to calculate:
Wherein, q-copper cooling wall heat flow rate per unit area (kw/m
2), c-water coolant specific heat capacity (kJ/ (kgk), m-unit time internal cooling discharge (kg/s), t-water coolant leaving water temperature(LWT) (℃), t
0The water coolant water inlet (℃), F-copper cooling wall surface-area (m
2).
3) calculate muscle rib heat flow rate per unit area q
1:
Wherein, q
1-heat flow rate per unit area (kw/m
2), λ-copper cooling wall thermal conductivity (w/ (mk)), t
X2-copper cooling wall hot-face temperature (℃), t
2-muscle rib check point temperature (℃), Δ x
2-hot side and check point distance (m).
4) copper and refractory materials built-up section heat flow rate per unit area q
2Calculate:
Wherein, q
2-heat flow rate per unit area (kw/m
2), t
X1-inlay the refractory materials hot-face temperature (℃), t
i-temperature of cooling water (℃), b-inlays refractory thickness (m), a-copper cooling wall wall thickness half (m), 1
1-water pipe spacing (m), λ-copper cooling wall thermal conductivity (w/ (m.k)), λ
1-inlay refractory materials thermal conductivity (w/ (mk)), d-water-cooled tube diameter (m), α water coolant heat transfer coefficient (w/ (m
2K)).
5) under the situation of trying to achieve copper cooling wall hot-face temperature and heat flow rate per unit area, be that slag crust solidifies the boundary temperature condition with 1150 ℃, can go out copper cooling wall front end, muscle rib front end thickness of the slag crust by inverse:
Wherein, q-heat flow rate per unit area (kw/m
2), λ-thermal conductivity (w/ (mk)), t-slag crust solidify boundary temperature (℃), t
x-copper cooling wall hot-face temperature (℃), Δ x-thickness of the slag crust (m).
Blast furnace design fluctuation early warning system implementation step is as follows: the physics value and the copper cooling wall physical structure parameter of the cooling water intakeoutfall temperature that collects according to the blast furnace data collecting system, check point electric thermo-couple temperature, various materials can calculate blast furnace copper cooling wall hot-face temperature t
xWith thickness of the slag crust Δ x.As shown in Figure 4, utilization Ajax technology dynamic graphical shows blast furnace lines, the thickness of the slag crust of the inner all directions of periodic refreshing blast furnace copper cooling wall, and to thickness of the slag crust definition three intervals (mm of unit): [0,50], (50,100), [100,150], be divided into cloth on the blast furnace copper cooling wall circumferential direction and 11 monitoring points, with A-K it is marked, when a certain direction of the blast furnace copper cooling wall thickness of the slag crust value that falls falls into first when interval, red display thickness of the slag crust point, explanation is more frequent at this direction slag crust number of times that comes off, and notes changing this air port, position area or length in suitable chance.When a certain direction of the blast furnace copper cooling wall thickness of the slag crust value that falls falls into second when interval, the green thickness of the slag crust point that shows of system represents that the present type of furnace is normal, does not need the human intervention blast furnace operating.When a certain direction of the blast furnace copper cooling wall thickness of the slag crust value that falls falls into the 3rd when interval, red display thickness of the slag crust point illustrate at this direction slag crust knot thickly, should adopt the burden distribution system at the edge that suitably loosens.
Claims (4)
1. blast furnace lines Monitoring systems, mainly comprise PLC system, DSC system, opc server, SQL database technology, serial ports isolation technology, asynchronous communications, WEB technique of display, it is characterized in that setting up respectively on this basis blast furnace data collecting system and treatment system, blast furnace copper cooling wall temperature and thickness of the slag crust computing system, blast furnace design fluctuation early warning system, each subsystem is combined by OPC serial communication, SQL database and Fast Ethernet.
2. blast furnace lines Monitoring systems according to claim 1, it is characterized in that data collecting system and treatment system comprise subsystems such as blast-furnace body, material loading, hotblast stove, casting house, its automatic control system is divided into basic automatization and process automation, and the reservation management automation interface; Mainly gather data such as each section of blast furnace cooling water inlet temperature out, water coolant discharge, copper cooling wall thermopair check point temperature, on data communication, be independent of the level two of blast furnace, set up independent database.
3. blast furnace lines Monitoring systems according to claim 1, it is characterized in that blast furnace copper cooling wall temperature and thickness of the slag crust computing system, be to obtain using following steps and calculating blast furnace high heat load zone each section copper cooling wall hot-face temperature and thickness of the slag crust under the prerequisite of the physics value of cooling water intakeoutfall temperature, check point electric thermo-couple temperature, various materials and copper cooling wall physical structure parameter in data collecting system and treatment system:
1) heat transfer of monoblock cooling stave is divided into two parts, a part is the muscle rib, thinks that material is a kind of; Another part is the combination of copper and refractory materials, and the heat flow rate per unit area q of monoblock cooling stave utilizes cooling water parameter to calculate, as expression formula (1):
2) calculate muscle rib heat flow rate per unit area q
1, as expression formula (2):
3) copper and refractory materials built-up section heat flow rate per unit area q
2Calculate as expression formula (3):
4) monoblock copper cooling wall heat flow rate per unit area is the mean value of the two, calculates by expression formula (4):
5), extrapolate copper cooling wall hot-face temperature and heat flow rate per unit area by above derivation;
By
As can be known:
Under the situation of trying to achieve copper cooling wall hot-face temperature and heat flow rate per unit area, be that slag crust solidifies the boundary temperature condition with 1150 ℃, go out copper cooling wall hot side thickness of the slag crust according to expression formula (5) and expression formula (6) inverse.
4. blast furnace lines Monitoring systems according to claim 1, it is characterized in that blast furnace design fluctuation early warning system is based on the graphical dynamic display system of blast furnace lines of Ajax technology, the thickness of the slag crust of the inner all directions of periodic refreshing blast furnace copper cooling wall, Ajax introduces intermediary-Ajax engine between user and server, by it be responsible for the compiling user interface and and server between mutual, it allows asynchronous the carrying out of reciprocal process between user and the application software, and be independent of mutual between user and server, when the user needs server data, call the Ajax engine and produce a Http request to server by Javascript, and server passes to client terminal with data query by the XML document form, is still resolved by DOM and the renewal html page by the Ajax engine in client terminal.
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925602A (en) * | 2012-11-22 | 2013-02-13 | 武汉钢铁(集团)公司 | Furnace profile maintenance method for blast furnace operation |
| CN104404187A (en) * | 2014-11-24 | 2015-03-11 | 中冶赛迪工程技术股份有限公司 | Blast furnace brickwork slag shell thickness monitoring system and method |
| CN104609134A (en) * | 2015-02-04 | 2015-05-13 | 中交一航局安装工程有限公司 | Intelligent temperature measuring monitoring system for belt conveyor rollers |
| CN104991590A (en) * | 2015-06-26 | 2015-10-21 | 东华工程科技股份有限公司 | Automatic temperature control system for large-scale boiling chlorination furnace |
| CN105392904A (en) * | 2013-07-29 | 2016-03-09 | 杰富意钢铁株式会社 | Abnormality detection method and blast-furnace operation method |
| TWI563096B (en) * | 2016-03-31 | 2016-12-21 | China Steel Corp | Method and apparatus for monitoring blast furnace smelting |
| CN106435078A (en) * | 2016-08-30 | 2017-02-22 | 武汉钢铁股份有限公司 | Continuous diagnosis and adjustment method for blast furnace wall accretion |
| CN106679602A (en) * | 2016-12-19 | 2017-05-17 | 武汉钢铁股份有限公司 | Method and device for determining thickness change of slag crust of copper cooling wall of blast furnace |
| CN106802309A (en) * | 2017-02-22 | 2017-06-06 | 江苏铭彦科技有限公司 | One kind enters stove coal burning caloricity real-time monitoring system and its monitoring method |
| CN106874648A (en) * | 2017-01-08 | 2017-06-20 | 北京首钢自动化信息技术有限公司 | A kind of blast furnace high thermal load regions operate type of furnace computational methods |
| CN108955925A (en) * | 2018-05-22 | 2018-12-07 | 安徽瑞鑫自动化仪表有限公司 | A kind of intelligent temperature regulation system based on thermocouple detection |
| CN109295273A (en) * | 2018-12-06 | 2019-02-01 | 安徽工业大学 | A kind of hot face condition monitoring system and method for cast copper cooling wall of blast furnace |
| CN110373508A (en) * | 2019-06-25 | 2019-10-25 | 武汉钢铁有限公司 | Cohesive zone recognition methods, device and electronic equipment |
| CN113444851A (en) * | 2021-06-28 | 2021-09-28 | 中冶赛迪重庆信息技术有限公司 | Blast furnace cooling wall water temperature difference detection system, method, medium and electronic terminal |
| CN113528722A (en) * | 2021-07-13 | 2021-10-22 | 江苏省沙钢钢铁研究院有限公司 | Method and device for managing service life of blast furnace tuyere and storage medium |
| CN114280268A (en) * | 2021-11-11 | 2022-04-05 | 国家电投集团宁夏能源铝业有限公司临河发电分公司 | System and method for managing coking condition in boiler based on Alot |
| WO2023142213A1 (en) * | 2022-01-27 | 2023-08-03 | 江苏省沙钢钢铁研究院有限公司 | Blast furnace edge airflow stability control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680677Y (en) * | 2004-02-04 | 2005-02-23 | 周强 | Intelligent monitoring apparatus for cooling system of blast furnace |
| CN1995401A (en) * | 2006-12-18 | 2007-07-11 | 冶金自动化研究设计院 | Intelligent diagnosis and determination support system for blast furnace |
-
2009
- 2009-09-18 CN CN2009101875090A patent/CN102021260A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680677Y (en) * | 2004-02-04 | 2005-02-23 | 周强 | Intelligent monitoring apparatus for cooling system of blast furnace |
| CN1995401A (en) * | 2006-12-18 | 2007-07-11 | 冶金自动化研究设计院 | Intelligent diagnosis and determination support system for blast furnace |
Non-Patent Citations (3)
| Title |
|---|
| 国宏伟等: "高炉专家***的数据采集及处理", 《冶金自动化》 * |
| 蒋维: "Ajax技术在网络B/S架构中的应用研究", 《微计算机应用》 * |
| 车玉满等: "鞍钢铜冷却壁高炉操作炉型管理模型开发与应用", 《炼铁》 * |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925602B (en) * | 2012-11-22 | 2014-11-26 | 武汉钢铁(集团)公司 | Furnace profile maintenance method for blast furnace operation |
| CN102925602A (en) * | 2012-11-22 | 2013-02-13 | 武汉钢铁(集团)公司 | Furnace profile maintenance method for blast furnace operation |
| US9799110B2 (en) | 2013-07-29 | 2017-10-24 | Jfe Steel Corporation | Abnormality detection method and blast furnace operation method |
| CN105392904A (en) * | 2013-07-29 | 2016-03-09 | 杰富意钢铁株式会社 | Abnormality detection method and blast-furnace operation method |
| CN104404187A (en) * | 2014-11-24 | 2015-03-11 | 中冶赛迪工程技术股份有限公司 | Blast furnace brickwork slag shell thickness monitoring system and method |
| CN104609134A (en) * | 2015-02-04 | 2015-05-13 | 中交一航局安装工程有限公司 | Intelligent temperature measuring monitoring system for belt conveyor rollers |
| CN104991590A (en) * | 2015-06-26 | 2015-10-21 | 东华工程科技股份有限公司 | Automatic temperature control system for large-scale boiling chlorination furnace |
| TWI563096B (en) * | 2016-03-31 | 2016-12-21 | China Steel Corp | Method and apparatus for monitoring blast furnace smelting |
| CN106435078A (en) * | 2016-08-30 | 2017-02-22 | 武汉钢铁股份有限公司 | Continuous diagnosis and adjustment method for blast furnace wall accretion |
| CN106435078B (en) * | 2016-08-30 | 2018-07-03 | 武汉钢铁有限公司 | The continuous diagnosis of Blast Furnace Wall Liner Thickening and adjusting method |
| CN106679602A (en) * | 2016-12-19 | 2017-05-17 | 武汉钢铁股份有限公司 | Method and device for determining thickness change of slag crust of copper cooling wall of blast furnace |
| CN106874648A (en) * | 2017-01-08 | 2017-06-20 | 北京首钢自动化信息技术有限公司 | A kind of blast furnace high thermal load regions operate type of furnace computational methods |
| CN106802309A (en) * | 2017-02-22 | 2017-06-06 | 江苏铭彦科技有限公司 | One kind enters stove coal burning caloricity real-time monitoring system and its monitoring method |
| CN108955925A (en) * | 2018-05-22 | 2018-12-07 | 安徽瑞鑫自动化仪表有限公司 | A kind of intelligent temperature regulation system based on thermocouple detection |
| CN109295273A (en) * | 2018-12-06 | 2019-02-01 | 安徽工业大学 | A kind of hot face condition monitoring system and method for cast copper cooling wall of blast furnace |
| CN110373508A (en) * | 2019-06-25 | 2019-10-25 | 武汉钢铁有限公司 | Cohesive zone recognition methods, device and electronic equipment |
| CN110373508B (en) * | 2019-06-25 | 2021-08-24 | 武汉钢铁有限公司 | Reflow strip identification method and device and electronic equipment |
| CN113444851A (en) * | 2021-06-28 | 2021-09-28 | 中冶赛迪重庆信息技术有限公司 | Blast furnace cooling wall water temperature difference detection system, method, medium and electronic terminal |
| CN113528722A (en) * | 2021-07-13 | 2021-10-22 | 江苏省沙钢钢铁研究院有限公司 | Method and device for managing service life of blast furnace tuyere and storage medium |
| CN113528722B (en) * | 2021-07-13 | 2022-08-16 | 江苏省沙钢钢铁研究院有限公司 | Method and device for managing service life of blast furnace tuyere and storage medium |
| CN114280268A (en) * | 2021-11-11 | 2022-04-05 | 国家电投集团宁夏能源铝业有限公司临河发电分公司 | System and method for managing coking condition in boiler based on Alot |
| CN114280268B (en) * | 2021-11-11 | 2024-03-08 | 国家电投集团宁夏能源铝业有限公司临河发电分公司 | Alot-based boiler internal coking condition management system and method |
| WO2023142213A1 (en) * | 2022-01-27 | 2023-08-03 | 江苏省沙钢钢铁研究院有限公司 | Blast furnace edge airflow stability control method |
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