CN108690899A - Improve control system and control method that sublance is inserted into precision - Google Patents
Improve control system and control method that sublance is inserted into precision Download PDFInfo
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- CN108690899A CN108690899A CN201710215768.4A CN201710215768A CN108690899A CN 108690899 A CN108690899 A CN 108690899A CN 201710215768 A CN201710215768 A CN 201710215768A CN 108690899 A CN108690899 A CN 108690899A
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- sublance
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention relates to control systems and control method that a kind of raising sublance is inserted into precision, it is characterized in that, the control system includes furnace life judgment module, level gauging module, tap computing module, standard tap liquid level calculates module, heat liquid level calculates module, plc communication module, PLC sublance controls module, the equal liquid steel level falling head computing module of stove and sublance insertion depth computing module;The technical solution is used measures a liquid steel level height every certain heat, is measuring the heat between liquid level twice, and carrying out control sublance using the method for calculating liquid level is inserted into level, transformation of the control method from manual control to intelligent control.
Description
Technical field
The present invention relates to a kind of control systems, and in particular to a kind of control system and controlling party for improving sublance and being inserted into precision
Method belongs to technical field of electrical automation control.
Background technology
Modern converter generally uses top and bottom complex blowing, sublance thermometric sampling technique.In smelting process, need to survey using sublance
The temperature of dimension water, ingredient, this just needs sublance being inserted into the certain depth of molten steel, it is ensured that the success that sublance measures;However
In smelting process, molten steel leads to the erosion of furnace lining the variation of converter volume, and the difference of tap every time for converter, from
And liquid level of every stove molten steel in converter is made also to be not quite similar.General way is to measure one with sublance at interval of certain stove number
Secondary liquid steel level height, and in this, as the foundation of later heat sublance insertion molten steel depth, thus bring problems with:When
Converter is in smelting process, as molten steel leads to the erosion of furnace lining the variation of converter volume, so as to cause liquid level
Variation, second is that in per stove smelting process, be packed into converter iron and steel stock number, lead to the difference of tap, to liquid level
It changes, Accurate Prediction liquid steel level height seems extremely important.In actual production, it is impossible to all sublance be utilized to survey per stove
Measure liquid level (of high cost, to spend additional time), if liquid steel level Height Prediction is inaccurate, will influence sublance measure at
The probability of work(.
Scheme in the prior art does not have the height of the liquid steel level of the heat of sublance measurement liquid level, cannot achieve yet
It automatically controls to cannot achieve automatically controlling for sublance control, therefore, there is an urgent need for a kind of new schemes to solve the technology
Problem.
Invention content
The present invention exactly for the technical problems in the prior art, provides a kind of control of raising sublance insertion precision
System and control method, which uses measures a liquid steel level height every certain heat, is measuring liquid level twice
Heat between height carries out control sublance using the method for calculating liquid level and is inserted into level, and control method is by artificial
Control the transformation to intelligent control.
To achieve the goals above, technical scheme is as follows, a kind of control system for improving sublance and being inserted into precision,
It is characterized in that, the control system includes furnace life judgment module, level gauging module, tap computing module, standard
It is equal that tap liquid level calculates module, heat liquid level calculating module, plc communication module, PLC sublance controls module, stove
Liquid steel level falling head computing module and sublance insertion depth computing module;
The furnace life judgment module, the furnace life for judging current converter;
The level gauging module, for the height for measuring converter molten steel liquid level,
The tap computing module, the weight for calculating heat of molten steel;
The standard tap liquid level calculates module, high for the liquid steel level under current heat standard tap
It spends, there is no this building block technique function in general technology;
The heat liquid level calculates module, the height for calculating current heat of molten steel liquid level, in general technology
The general method using artificial experience prediction;
The plc communication module, for the communication between PLC;
The PLC sublance control modules, the PLC control modules for controlling sublance operation;
The equal liquid steel level falling head computing module of the stove, for the liquid steel level under current heat standard tap
Highly, there is no this building block technique function in general technology;
The sublance insertion depth computing module, for calculating sublance insertion depth according to liquid level;The technical solution
It improves sublance and measures successful probability, without manually rule of thumb judging, improve the precision of sublance insertion depth, calculate steel automatically
The height of water level automatically controls the depth of sublance insertion according to the liquid steel level height of calculating.
A kind of control method for improving sublance and being inserted into precision, which is characterized in that the described method comprises the following steps:
Step 1, furnace life judgment module judges that furnace life executes corresponding operation;
Step 2, level gauging module measure liquid level;
Rifle measures liquid steel level height under revolving furnace sublance, is set as HSteel;
Step 3, tap computing module calculate this stove tap;
Step 4, standard tap liquid level calculate module and calculate the corresponding liquid level of this heat standard tap;
Step 5, furnace life judgment module judge that the furnace life of heat judges whether furnace life is 0 (new stove), when if it is 0, turn step
Rapid 8;
The equal liquid steel level falling head computing module of step 6, stove calculates under standard tap under the average liquid steel level per stove
Drop height;
Step 7, heat liquid level calculate module and calculate this heat liquid level HSteel;
Step 8, sublance insertion depth computing module calculate sublance insertion depth
Step 9, plc communication module carry out information exchange
The sublance insertion depth information of calculating is issued PLC sublance control modules by plc communication module;
Step 10, the control sublance operation of PLC sublance control modules
PLC sublance controls module controls relevant operation according to sublance insertion depth;
Step 11 terminates.
As an improvement of the present invention, specific as follows in the step 1, when heat starts, furnace life judgment module judges
Furnace life, (new stove furnace life was 0, often smelts a stove, and (n indicates cycle period to 1) integral multiple that whether it is n that furnace life adds, i.e., is used per n stoves
Sublance measures a liquid level, and for n values generally in 8-15, plum steel value is 10), if not the integral multiple of n, to go to step 7.
It is as an improvement of the present invention, specific as follows in the step 3,
Computing module calculates this stove tap WeiSteel;
WeiSteel=k1* (WeiIron+WeiScrap+WeiPigIron+k2*WeiRoe)
Wherein, WeiIron is the weight of molten iron for being blended into converter;
WeiScrap is the steel scrap weight that converter is added;
WeiPigIron is the pig weight that converter is added;
WeiRoe is the iron ore weight that converter is added;
K1, k2 are constant, and k1 indicates recovery rate, and value range is between 0.9-0.98;It is different according to the grade of iron ore,
K2 value ranges are generally between 0.45-0.55.
It is as an improvement of the present invention, specific as follows in the step 4,
Standard tap refers to the weight of molten steel under the nominal volume of converter, as the standard tap of the converter of 300t is
The converter of 300t, different nominal volumes are different;Tapping is calculated according to liquid steel level height and Metal Weight WeiSteel
Measure corresponding liquid level HStandard;
HStandard=HSteel+ (WeiSteelStandard-WeiSteel)/(π * ρ * r*r)
Wherein, WeiSteelStandard standards tap refers to the weight of molten steel under the nominal volume of converter, such as
The standard tap of the converter of 300t is 300t, and the converter of different nominal volumes is different;ρ is the density of molten steel, is taken
7.0kg/cm3;R is the radius of converter inner periphery, related with converter shape, takes definite value.
As an improvement of the present invention, specific as follows in the step 6, according to a upper cycle period and this cycle
The corresponding liquid level of standard tap of computation of Period calculates under average tap per stove liquid steel level falling head
HFall;Go to step 8;
HFall=(HStandard1-HStandard2)/n;
Wherein, HStandard1 is the corresponding liquid level of standard tap that last time cycle period calculates;
HStandard2 is the corresponding liquid level of standard tap that this cycle period calculates;N is cycle period
As an improvement of the present invention, specific as follows in the step 7,71) it is pre- to calculate this stove for tap computing module
Count the Metal Weight WeiSteel of tapping;
WeiSteel=k1* (WeiIron+WeiScrap+WeiPigIron+k2*WeiRoe)
Wherein, WeiIron is the weight of molten iron for being blended into converter;
WeiScrap is the steel scrap weight that converter is added;
WeiPigIron is the pig weight that converter is added;
WeiRoe is the iron ore weight that converter is added;
K1, k2 are constant, and k1 indicates recovery rate, and value range is between 0.9-0.98;It is different according to the grade of iron ore,
K2 value ranges are between 0.45-0.55;
72) this heat of molten steel liquid level is calculated;
HSteel=HStandard+ (WeiSteelStandard-WeiSteel)/(π * ρ * r*r)+HFall*m;
Wherein, m is that the smelting heat in this cycle period counts.
As an improvement of the present invention, the step, specific as follows, DepthSublance=HSteel1+K3 in 8;
Wherein, K3 is the depth that constant refers to that auxiliary lance probe needs insertion molten steel, takes 500-700mm.The sublance of each producer
And its probe is different, value is also different;
Related term in the present invention is explained:
Liquid steel level height:The distance between liquid steel level in sublance peak to stove, liquid steel level is apart from ground distance
Bigger, liquid steel level height is smaller,
Sublance:It is a kind of device measuring liquid steel temperature, ingredient, head can install different types of probe (such as TSC
Probe is sampled for thermometric determines carbon, and TSO probes determine oxygen for thermometric sampling), installing survey liquid-level probe on its head can survey
Dimension water level height;
Furnace lining:Refractory material inside converter forms liner, the furnace shell for protecting converter and reduction in-furnace temperature damage
It loses, tap:The weight of molten steel in the converter of prediction.
Compared with the existing technology, the invention has the advantages that, 1) technical solution realizes heat of molten steel liquid level
It accurately calculates, original technology liquid level estimates that the present invention is according to heat charge weight and initial heat of molten steel with artificial experience
Liquid level realizes that it is accurately calculated;2) technical solution automatically controls sublance insertion depth, and original technology is according to artificial warp
It tests, on operation screen, artificial to set sublance insertion depth, the present invention is to obtain liquid level according to scientific algorithm, according to section
Calculated liquid level is learned to automatically control sublance insertion depth, realizes sublance insertion depth from manual control to automatic
Control or even the transformation of intelligent control;3) technical solution, which improves the measurement accuracy of sublance and sublance service life, original technology, is
Sublance insertion depth is controlled with artificial experience, inevitably ensures that sublance insertion molten steel depth is inconsistent, then has the following disadvantages, when
As sublance is inserted into, molten steel depth is inadequate, and the molten steel that auxiliary lance probe touches cannot represent the active ingredient and temperature of molten steel, cause
The decline of sublance measurement accuracy;Second is that as too deep in being inserted into molten steel, the sublance body of a gun is inserted into molten steel, and the body of a gun is corroded phase by high-temperature molten steel
To serious, the service life of sublance is reduced.
Description of the drawings
Fig. 1 is that converter and pair rob structural schematic diagram;
Fig. 2 device modules logical relation schematic diagrames in order to control;
Fig. 3 method flow schematic diagrams in order to control.
In figure:1, converter shell and the furnace lining of inside;2, sublance;3, auxiliary lance probe;4, clinker liquid level;5, molten steel;6,
Liquid steel level;7, HSteel liquid steel levels height;8, altitude datum face.
Specific implementation mode:
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1:Referring to Fig. 1, Fig. 2, a kind of control system for improving sublance and being inserted into precision, the control system includes stove
Age judgment module, level gauging module, tap computing module, standard tap liquid level calculate module, heat liquid
Face height computing module, plc communication module, PLC sublance controls module, the equal liquid steel level falling head computing module of stove and pair
Rifle insertion depth computing module;
The furnace life judgment module, the furnace life for judging current converter;
The level gauging module, for the height for measuring converter molten steel liquid level,
The tap computing module, the weight for calculating heat of molten steel;
The standard tap liquid level calculates module, high for the liquid steel level under current heat standard tap
It spends, there is no this building block technique function in general technology;
The heat liquid level calculates module, the height for calculating current heat of molten steel liquid level, in general technology
The general method using artificial experience prediction;
The plc communication module, for the communication between PLC;
The PLC sublance control modules, the PLC control modules for controlling sublance operation;
The equal liquid steel level falling head computing module of the stove, for the liquid steel level under current heat standard tap
Highly, there is no this building block technique function in general technology;
The sublance insertion depth computing module, for calculating sublance insertion depth according to liquid level;The technical solution
It improves sublance and measures successful probability, without manually rule of thumb judging, improve the precision of sublance insertion depth, calculate steel automatically
The height of water level automatically controls the depth of sublance insertion according to the liquid steel level height of calculating.
Embodiment 2:Referring to Fig. 1, Fig. 2, a kind of control method for improving sublance and being inserted into precision, the method includes following steps
Suddenly:
Step 1, furnace life judgment module judges that furnace life executes corresponding operation;Specific as follows in the step 1, heat starts
When, furnace life judgment module judges that furnace life, (new stove furnace life for 0, often smelted a stove, and (n is indicated 1) integral multiple that whether it is n that furnace life adds
Cycle period measures a liquid level per n stoves using sublance, for n values generally in 8-15, plum steel value is 10), if not
It is the integral multiple of n, goes to step 7.
Step 2, level gauging module measure liquid level;
Rifle measures liquid steel level height under revolving furnace sublance, is set as HSteel;
Step 3, tap computing module calculate this stove tap;It is specific as follows in the step 3,
Computing module calculates this stove tap WeiSteel;
WeiSteel=k1* (WeiIron+WeiScrap+WeiPigIron+k2*WeiRoe)
Wherein, WeiIron is the weight of molten iron for being blended into converter;
WeiScrap is the steel scrap weight that converter is added;
WeiPigIron is the pig weight that converter is added;
WeiRoe is the iron ore weight that converter is added;
K1, k2 are constant, and k1 indicates recovery rate, and value range is between 0.9-0.98;It is different according to the grade of iron ore,
K2 value ranges are generally between 0.45-0.55.
Step 4, standard tap liquid level calculate module and calculate the corresponding liquid level of this heat standard tap;Institute
State it is specific as follows in step 4,
Standard tap refers to the weight of molten steel under the nominal volume of converter, as the standard tap of the converter of 300t is
The converter of 300t, different nominal volumes are different;Tapping is calculated according to liquid steel level height and Metal Weight WeiSteel
Measure corresponding liquid level HStandard;
HStandard=HSteel+ (WeiSteelStandard-WeiSteel)/(π * ρ * r*r)
Wherein, WeiSteelStandard standards tap refers to the weight of molten steel under the nominal volume of converter, such as
The standard tap of the converter of 300t is 300t, and the converter of different nominal volumes is different;ρ is the density of molten steel, is taken
7.0kg/cm3;R is the radius of converter inner periphery, related with converter shape, takes definite value.
Step 5, furnace life judgment module judge that the furnace life of heat judges whether furnace life is 0 (new stove), when if it is 0, turn
Step 8;
The equal liquid steel level falling head computing module of step 6, stove calculates under standard tap under the average liquid steel level per stove
Drop height;It is specific as follows, it is high according to upper cycle period liquid level corresponding with the standard tap that this cycle period calculates
Degree calculates under average tap per stove liquid steel level falling head HFall;Go to step 8;
HFall=(HStandard1-HStandard2)/n;
Wherein, HStandard1 is the corresponding liquid level of standard tap that last time cycle period calculates;
HStandard2 is the corresponding liquid level of standard tap that this cycle period calculates;N is cycle period
Step 7, heat liquid level calculate module and calculate this heat liquid level HSteel;It is specific as follows, 71) tap
Computing module calculates the Metal Weight WeiSteel of the estimated tapping of this stove;
WeiSteel=k1* (WeiIron+WeiScrap+WeiPigIron+k2*WeiRoe)
Wherein, WeiIron is the weight of molten iron for being blended into converter;
WeiScrap is the steel scrap weight that converter is added;
WeiPigIron is the pig weight that converter is added;
WeiRoe is the iron ore weight that converter is added;
K1, k2 are constant, and k1 indicates recovery rate, and value range is between 0.9-0.98;It is different according to the grade of iron ore,
K2 value ranges are between 0.45-0.55;
72) this heat of molten steel liquid level is calculated;
HSteel=HStandard+ (WeiSteelStandard-WeiSteel)/(π * ρ * r*r)+HFall*m;
Wherein, m is that the smelting heat in this cycle period counts.
Step 8, sublance insertion depth computing module calculate sublance insertion depth;It is specific as follows, DepthSublance=
HSteel1+K3;
Wherein, K3 is the depth that constant refers to that auxiliary lance probe needs insertion molten steel, takes 500-700mm.The sublance of each producer
And its probe is different, value is also different;
Step 9, plc communication module carry out information exchange
The sublance insertion depth information of calculating is issued PLC sublance control modules by plc communication module;
Step 10, the control sublance operation of PLC sublance control modules
PLC sublance controls module controls relevant operation according to sublance insertion depth;
Step 11 terminates.
It should be noted that above-described embodiment, protection domain not for the purpose of limiting the invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (8)
1. it is a kind of improve sublance be inserted into precision control system, which is characterized in that the control system include furnace life judgment module,
Level gauging module, tap computing module, standard tap liquid level calculate module, heat liquid level calculates mould
Block, plc communication module, PLC sublance controls module, the equal liquid steel level falling head computing module of stove and sublance insertion depth meter
Calculate module;
The furnace life judgment module, the furnace life for judging current converter;
The level gauging module, for the height for measuring converter molten steel liquid level, the tap calculates mould
Block, the weight for calculating heat of molten steel;
The standard tap liquid level calculates module, the liquid steel level height being used under current heat standard tap,
There is no this building block technique function in general technology;
The heat liquid level calculates module, the height for calculating current heat of molten steel liquid level, general in general technology
The method predicted using artificial experience;
The plc communication module, for the communication between PLC;
The PLC sublance control modules, the PLC control modules for controlling sublance operation;
The equal liquid steel level falling head computing module of the stove is high for the liquid steel level under current heat standard tap
It spends, there is no this building block technique function in general technology;
The sublance insertion depth computing module, for calculating sublance insertion depth according to liquid level.
2. a kind of control method for improving sublance and being inserted into precision, which is characterized in that the described method comprises the following steps:
Step 1, furnace life judgment module judges that furnace life executes corresponding operation;
Step 2, level gauging module measure liquid level;
Rifle measures liquid steel level height under revolving furnace sublance, is set as HSteel;
Step 3, tap computing module calculate this stove tap;
Step 4, standard tap liquid level calculate module and calculate the corresponding liquid level of this heat standard tap;
Step 5, furnace life judgment module judge that the furnace life of heat judges whether furnace life is 0 (new stove), when if it is 0, go to step 8;
The equal liquid steel level falling head computing module of step 6, stove calculates average per stove liquid steel level decline under standard tap
Highly;
Step 7, heat liquid level calculate module and calculate this heat liquid level HSteel;
Step 8, sublance insertion depth computing module calculate sublance insertion depth;
Step 9, plc communication module carry out information exchange;
The sublance insertion depth information of calculating is issued PLC sublance control modules by plc communication module;
Step 10, the control sublance operation of PLC sublance control modules;
PLC sublance controls module controls relevant operation according to sublance insertion depth;
Step 11 terminates.
3. the control method according to claim 2 for improving sublance and being inserted into precision, which is characterized in that have in the step 1
Body is as follows, and when heat starts, furnace life judgment module judges that furnace life, (new stove furnace life for 0, often smelted a stove, whether 1) it is n that furnace life adds
Integral multiple (n indicates cycle period, i.e., measures a liquid level using sublance per n stoves, n values are generally in 8-15, Mei Gangqu
Value is 10), if not the integral multiple of n, to go to step 7.
4. the control method according to claim 3 for improving sublance and being inserted into precision, which is characterized in that in the step 3, tool
Body is as follows,
Computing module calculates this stove tap WeiSteel;
WeiSteel=k1* (WeiIron+WeiScrap+WeiPigIron+k2*WeiRoe)
Wherein, WeiIron is the weight of molten iron for being blended into converter;
WeiScrap is the steel scrap weight that converter is added;
WeiPigIron is the pig weight that converter is added;
WeiRoe is the iron ore weight that converter is added;
K1, k2 are constant, and k1 indicates recovery rate, and value range is between 0.9-0.98;Different according to the grade of iron ore, k2 takes
It is worth range generally between 0.45-0.55.
5. the control method according to claim 4 for improving sublance and being inserted into precision, which is characterized in that have in the step 4
Body is as follows,
The corresponding liquid level HStandard of tap is calculated according to liquid steel level height and Metal Weight WeiSteel;
HStandard=HSteel+ (WeiSteelStandard-WeiSteel)/(π * ρ * r*r)
Wherein, WeiSteelStandard standards tap refers to the weight of molten steel under the nominal volume of converter;ρ is molten steel
Density takes 7.0kg/cm3;R is the radius of converter inner periphery, related with converter shape, takes definite value.
6. the control method according to claim 5 for improving sublance and being inserted into precision, which is characterized in that have in the step 6
Body is as follows, according to upper cycle period liquid level corresponding with the standard tap that this cycle period calculates, calculates
Per stove liquid steel level falling head HFall under average tap;Go to step 8;
HFall=(HStandard1-HStandard2)/n;
Wherein, HStandard1 is the corresponding liquid level of standard tap that last time cycle period calculates;HStandard2 is
The corresponding liquid level of standard tap that this cycle period calculates;N is cycle period.
7. the control method according to claim 6 for improving sublance and being inserted into precision, which is characterized in that have in the step 7
Body is as follows, and 71) tap computing module calculates this stove it is expected that the Metal Weight WeiSteel to tap;
WeiSteel=k1* (WeiIron+WeiScrap+WeiPigIron+k2*WeiRoe)
Wherein, WeiIron is the weight of molten iron for being blended into converter;
WeiScrap is the steel scrap weight that converter is added;
WeiPigIron is the pig weight that converter is added;
WeiRoe is the iron ore weight that converter is added;
K1, k2 are constant, and k1 indicates recovery rate, and value range is between 0.9-0.98;Different according to the grade of iron ore, k2 takes
It is worth range between 0.45-0.55;
72) this heat of molten steel liquid level is calculated;
HSteel=HStandard+ (WeiSteelStandard-WeiSteel)/(π * ρ * r*r)+HFall*m;
Wherein, m is that the smelting heat in this cycle period counts.
8. the control method according to claim 7 for improving sublance and being inserted into precision, which is characterized in that the step has in 8
Body is as follows, DepthSublance=HSteel1+K3;
Wherein, K3 is the depth that constant refers to that auxiliary lance probe needs insertion molten steel, takes 500-700mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112336005A (en) * | 2020-09-29 | 2021-02-09 | 无锡市佳盛高新改性材料有限公司 | Method for processing rubber dipping type sole |
| CN112611480A (en) * | 2020-11-27 | 2021-04-06 | 中冶赛迪工程技术股份有限公司 | Temperature measurement sampling method and system |
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| CN112611480A (en) * | 2020-11-27 | 2021-04-06 | 中冶赛迪工程技术股份有限公司 | Temperature measurement sampling method and system |
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| CN108690899B (en) | 2020-10-23 |
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