CN108004389B - A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size - Google Patents
A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size Download PDFInfo
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- CN108004389B CN108004389B CN201610931027.1A CN201610931027A CN108004389B CN 108004389 B CN108004389 B CN 108004389B CN 201610931027 A CN201610931027 A CN 201610931027A CN 108004389 B CN108004389 B CN 108004389B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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Abstract
A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size, for the slab for reaching feeding verification roller-way, before entering respective rolling position according to cloth figure according to the technological requirements, the positioning of the secondary position based on three slab thickness, hardness and steel grade indexs is carried out to slab.Respectively for three kinds of situations by the way of the positioning of secondary position, the positioning that slab position is further refined on the basis of previously by the cloth figure of technique requirement, makes it meet the parameters such as different steel grades, trimmed size to the flexible adaptation of furnace plate blank furnace plate fabric material.
Description
Technical field
The invention belongs to metallurgical steel rolling automation fields, and in particular to one kind can carry out plate according to steel grade and trimmed size
The method that fabric anticipates position.
Background technique
Traditional heating furnace is all that the distribution situation according to water beam, the length dimension according to slab are done in terms of slab cloth
Good fabric model, is achieved by L1 basic automatization.Traditional cloths mode is " intersection " positioning, the mode of " intersecting cloth "
Be conducive to the symmetrical of two sidewind of heating furnace, but since the positioning of slab arrangement always " intersection " changes, bring
The unstable problem of head temperature, i.e. previous block of slab enter 1020 DEG C, latter block slab of milling train head temperature and enter milling train
The problem of head temperature may be 1060 DEG C or 980 DEG C, and this head temperature jumps, can seriously affect steady when strip produces
It is qualitative.
But consider from heating furnace water beam stress equilibrium angle, a certain position cannot be fixed on by slab is large batch of, it is no
It then will lead to heating furnace water beam stress unevenness, the accident that slab " sideslip " hits furnace wall occur.
Application No. is: 201410105322.2 patent application discloses a kind of cloth of walking beam type plate blank heating furnace
Method, the walking beam type plate blank heating furnace include the multiple side burners for being arranged in lower portion of furnace body, the distributing method include: by
Slab to be rolled be arranged only at walking beam type plate blank heating furnace by milling train side, and make the end by milling train side of each slab
At a distance from keeping equal between the furnace wall for examining milling train side of walking beam type plate blank heating furnace, wherein slab by milling train side
The end by non-milling train side for being less than slab by the distance between furnace wall of milling train side of end and walking beam type plate blank heating furnace
With the distance between the furnace wall by non-milling train side of walking beam type plate blank heating furnace.
Cloth scheme described in the technical solution is mutually equidistant according to all non-scale slab threshold value milling train wing furnace walls
From scheme carry out cloth.This scheme is easy to cause walking beam unbalance stress in production process at the scene, and slab sideslip occurs
Accident.
Application No. is 201410272466.7 patent application, disclose a kind of for chamber-type heating furnace multilayer cloth
Steel control method is taken on, comprising steps of blank is placed on stock shelf to laminated multi-layer in the height direction, each layer blank
There is interval, each blank has corresponding feeding location information (Xi；Yi；Zi), Zi characterizes elevation information；By the upper of each blank
The location information that discharge position information and preset each blank are in chamber-type heating furnace is transferred to control module, control module control
It fills extractor and blank is grabbed according to feeding location information, and will be had according to the location information control dress extractor in chamber-type heating furnace
There is identical Xi；Yi, but each layer blank of difference Zi is placed in chamber-type heating furnace with stacking mode, by the blowing of coming out of the stove of each blank
Location information is transferred to control module, after the completion of heating dress extractor according in the chamber-type heating furnace of each blank location information and
Blowing information of coming out of the stove successively grabs from upper layer to lower layer's blank and sends out each blank for completing heating.
The application category of the technical solution is chamber-type heating furnace, and cloth described in the technical solution refers to: heating-furnace
Multilayer distributing method in thorax short transverse.
Application No. is: 201410088258.1 patent application discloses a kind of furnace plate blank positioning device, comprising:
Slab is set in roller-way group, slab is transported to stokehold positioning roller-way from the furnace roller road that enters of heating furnace；Furnace side is set in roller-way group
Roller-way encoder, furnace side cold/hot metal detector also set up charging roller table encoder, stokehold cold/hot metal detector and the wide gold of survey
Belong to detector, Tui Zheng mechanism is set under the roller-way group, pushes away positive mechanism coding device.The two sides setting of slab measures slab length
Rangefinder.Its localization method is also disclosed, the slab of different length can be determined according to the requirement of cloth figure with higher precision
Position is packed into it in heating furnace in reasonable position, so that the series in traditional positioning method be avoided to ask on stokehold charging roller
Topic.
The emphasis of the technical solution is: how to be positioned according to fixed cloth discharge position realization slab, and this programme solution
Problem is that the cloth scheme of different steel grade different size slabs how is flexibly determined according to the demand of rolling mill practice.
Summary of the invention
To solve the problems, such as slab because temperature fluctuation causes to roll unstable, while slab the same side cloth being avoided to cause
The slab deviation phenomenon that occurs of walking beam discontinuity, the present invention is directed to 1. guarantee rolling stabilities respectively, needs difference
The slab end region temperature that heating furnace and same heating furnace come out is consistent；2. higher, the higher slab of heating temperature for intensity,
There are the big phenomenons of tail portion temperature drop；3. it is directed to special steel grade, for example silicon steel is such that stringent slab is required for temperature uniformity,
Guarantee the temperature uniformity in its overall length direction；Above three aspect is considered, and issues tool in the cloth figure setting required according to technique
Before body slab position, slab position for the secondary position of three of the above situation by process controller, is pressed previously
The positioning that slab position is further refined on the basis of the cloth figure that technique requires, makes it meet different steel grades, trimmed size etc.
Flexible adaptation of the parameter to furnace plate blank furnace plate fabric material.Its technical solution is specific as follows:
A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size, it is characterised in that: on reaching
The slab of material verification roller-way, before entering respective rolling position according to cloth figure according to the technological requirements, to slab
The secondary position positioning based on three slab thickness, hardness and steel grade indexs is carried out, is included the following steps:
S1: production control machine notification procedure computer slab reaches feeding and checks roller-way；
S2: process computer detects the heat (batch) number and row number of current slab after the notification signal for receiving production control machine；
When the row number of detection is the row number of long base attribute, S3 is entered step；When the row number of detection is the row number of short base attribute, enter
Step S5；
S3: thickness, hardness and the steel grade of current slab are detected respectively；When any one in thickness, hardness and steel grade is full
When the requirement of the secondary arrangement of foot, S4 is entered step；Otherwise, S5 is entered step；
S4: for process computer according to the requirement of secondary arrangement, action command to the basic automatization for assigning slab controls machine；
Basic automatization controls machine according to the instruction issuing action command received to actuating station is acted, and the requirement according to secondary arrangement is complete
It is positioned at the position of slab；
S5: the cloth figure setting of process computer according to the technological requirements assigns action command to basic automatization and controls machine；
S6: basic automatization controls machine according to the instruction issuing action command received to actuating station is acted, according to cloth
The position positioning of slab is completed in the requirement of figure setting.
Wherein, the requirement of secondary arrangement described in step S3 specifically:
SA1: when the finished product thickness for detecting current slab is less than 2.05mm, milling train side positioning is issued by process controller
Instruction to basic automatization control machine；
SA2: when detecting the hardness of current slab >=6, the instruction of non-milling train side positioning is issued extremely by process controller
Basic automatization controls machine；
SA3: when the steel grade for detecting current slab belongs to [50,55] in steel classification or 98, by process computer
Instruction to the basic automatization for issuing centering positioning controls machine.
The method that one kind according to the present invention can carry out the positioning of slab cloth according to steel grade and trimmed size, feature exist
In:
Secondary arrangement described in step S3 further include: when the steel classification for detecting current slab is 06, and the steel grade
Finished product thickness when being less than 2.4mm, control machine by issuing the instruction of milling train side positioning to basic automatization by process controller.
The method that one kind according to the present invention can carry out the positioning of slab cloth according to steel grade and trimmed size, feature exist
In:
Row number described in step S2 includes: 0 column；1 column and 2 column；
The corresponding long base of 0 column；The short base of the corresponding non-milling train side arrangement of 1 column；Described 2 arrange corresponding milling train side
The short base of arrangement.
The method that one kind according to the present invention can carry out the positioning of slab cloth according to steel grade and trimmed size, feature exist
In:
The heat (batch) number and row number of current slab described in step S2, it is machine-readable from production control especially by process computer
It takes；Or man-machine interaction interface is established, by manual entry.
A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size of the invention, guarantees for 1. respectively
Rolling stability, the slab end region temperature for needing different heating-furnace and same heating furnace to come out are consistent；2. higher for intensity,
The higher slab of heating temperature, there are the big phenomenons of tail portion temperature drop；3. being directed to special steel grade, for example silicon steel is such equal for temperature
Even property requires stringent slab, guarantees the temperature uniformity in its overall length direction；Considering for above three aspect, requires according to technique
The setting of cloth figure issue specific slab position before, slab is carried out by process controller secondary for three of the above situation
Position positioning, further refines the positioning of slab position on the basis of previously by the cloth figure of technique requirement, meets it not
The parameters such as same steel grade, trimmed size solve slab because temperature fluctuation is drawn to the flexible adaptation of furnace plate blank furnace plate fabric material
Play the unstable problem of rolling, while the slab sideslip for avoiding walking beam discontinuity caused by the cloth of slab the same side from occurring
Phenomenon.
Detailed description of the invention
Fig. 1 is control flow chart of the invention；
Fig. 2 is the requirement control figure of the secondary arrangement in the present invention.
Specific embodiment
In the following, according to specification drawings and specific embodiments to one kind of the invention can according to steel grade and trimmed size into
The method that andante fabric anticipates position is further described in detail.
A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size as shown in Figure 1, in arrival
The slab of material verification roller-way, before entering respective rolling position according to cloth figure according to the technological requirements, to slab
The secondary position positioning based on three slab thickness, hardness and steel grade indexs is carried out, is included the following steps:
S1: production control machine notification procedure computer slab reaches feeding and checks roller-way；
S2: process computer detects the heat (batch) number and row number of current slab after the notification signal for receiving production control machine；
When the row number of detection is the row number of long base attribute, S3 is entered step；When the row number of detection is the row number of short base attribute, enter
Step S5；
S3: thickness, hardness and the steel grade of current slab are detected respectively；When any one in thickness, hardness and steel grade is full
When the requirement of the secondary arrangement of foot, S4 is entered step；Otherwise, S5 is entered step；
S4: for process computer according to the requirement of secondary arrangement, action command to the basic automatization for assigning slab controls machine；
Basic automatization controls machine according to the instruction issuing action command received to actuating station is acted, and the requirement according to secondary arrangement is complete
It is positioned at the position of slab；
S5: the cloth figure setting of process computer according to the technological requirements assigns action command to basic automatization and controls machine；
S6: basic automatization controls machine according to the instruction issuing action command received to actuating station is acted, according to cloth
The position positioning of slab is completed in the requirement of figure setting.
Wherein,
The requirement of secondary arrangement described in step S3 specifically:
SA1: when the finished product thickness for detecting current slab is less than 2.05mm, milling train side positioning is issued by process controller
Instruction to basic automatization control machine；
SA2: when detecting the hardness of current slab >=6, the instruction of non-milling train side positioning is issued extremely by process controller
Basic automatization controls machine；
SA3: when the steel grade for detecting current slab belongs to [50,55] in steel classification or 98, by process computer
Instruction to the basic automatization for issuing centering positioning controls machine.
Wherein,
Secondary arrangement described in step S3 further include: when the steel classification for detecting current slab is 06, and the steel grade
Finished product thickness when being less than 2.4mm, control machine by issuing the instruction of milling train side positioning to basic automatization by process controller.
Wherein,
Row number described in step S2 includes: 0 column；1 column and 2 column；
The corresponding long base of 0 column；The short base of the corresponding non-milling train side arrangement of 1 column；Described 2 arrange corresponding milling train side
The short base of arrangement.
Wherein,
The heat (batch) number and row number of current slab described in step S2, it is machine-readable from production control especially by process computer
It takes；Or man-machine interaction interface is established, by manual entry.
Embodiment
To realize that slab can be positioned according to information such as steel grade, hardness group and finished product thicknesses, the specific steps are as follows:
1. slab reaches feeding and checks roller-way；
2. heat (batch) number and row number that operator distributes slab by L2 computer；
3.L2 computer judges the technique need of slab according to information such as the steel grade of slab to be checked, hardness group and finished product thicknesses
Seek cloth location information:
(3-1.) need slab end close to the steel grade of milling train side, are mainly used for thin slab product positioning, to guarantee that it is rolled
Stability processed, the slab end region temperature for needing different heating-furnace and same heating furnace to come out are consistent.Judgment method is as follows:
A. all finished product thicknesses are less than the carry out milling train side cloth of 2.05mm；
B. specific steel grade specific thicknesses carry out milling train side cloth: steel classification code 06, finished product thickness is less than 2.4mm
Shi Jinhang milling train side cloth；
The slab location information for meeting above-mentioned requirements issues 2.
(3-2.) need slab end far from the steel grade of milling train side, are mainly used for that intensity is higher, the higher production of heating temperature
Product need to make up the big problem of its tail portion temperature drop according to far from milling train side positioning；
Judgment method are as follows: hardness group >=6 carry out non-milling train side cloth.
The slab location information that (3-3.) meet the requirement issues 3
The steel grade for needing centering to position, silicon steel requires strictly temperature uniformity, for the temperature for guaranteeing slab overall length direction
Uniformity is spent, slab is positioned using centering；
Judgment method are as follows: steel classification code 50~55 and 98,
The slab location information for meeting the requirement issues 1.
The slab location information of (3-4.) not within the scope of above-mentioned requirements issues 0.
L1 computer system judges slab cloth location information specified in " cloth figure " according to slab length.
L1 computer system judges the slab location information that L2 is issued:
Location information is 0, and slab is positioned according to cloth figure；
Location information is 1, and slab is according to " centering positioning "；
Location information is 2, and slab is according to " milling train side positioning "；
Location information is 3, and slab is according to " non-milling train side positioning ".
A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size of the invention, guarantees for 1. respectively
Rolling stability, the slab end region temperature for needing different heating-furnace and same heating furnace to come out are consistent；2. higher for intensity,
The higher slab of heating temperature, there are the big phenomenons of tail portion temperature drop；3. being directed to special steel grade, for example silicon steel is such equal for temperature
Even property requires stringent slab, guarantees the temperature uniformity in its overall length direction；Considering for above three aspect, requires according to technique
The setting of cloth figure issue specific slab position before, slab is carried out by process controller secondary for three of the above situation
Position positioning, further refines the positioning of slab position on the basis of previously by the cloth figure of technique requirement, meets it not
The parameters such as same steel grade, trimmed size solve slab because temperature fluctuation is drawn to the flexible adaptation of furnace plate blank furnace plate fabric material
Play the unstable problem of rolling, while the slab sideslip for avoiding walking beam discontinuity caused by the cloth of slab the same side from occurring
Phenomenon.
Claims (4)
1. the method that one kind can carry out the positioning of slab cloth according to steel grade and trimmed size, it is characterised in that: for arrival feeding
Check roller-way slab, according to cloth figure according to the technological requirements enter respective rolling position before, to slab into
Secondary position positioning of the row based on three slab thickness, hardness and steel grade indexs, includes the following steps:
S1: production control machine notification procedure computer slab reaches feeding and checks roller-way；
S2: process computer detects the heat (batch) number and row number of current slab after the notification signal for receiving production control machine；Work as inspection
When the row number of survey is the row number of long base attribute, S3 is entered step；When the row number of detection is the row number of short base attribute, enter step
S5；
S3: thickness, hardness and the steel grade of current slab are detected respectively；When any one in thickness, hardness and steel grade meets two
When the requirement of secondary arrangement, S4 is entered step；Otherwise, S5 is entered step；
S4: for process computer according to the requirement of secondary arrangement, action command to the basic automatization for assigning slab controls machine；Basis
Automation control machine, to actuating station is acted, completes plate according to the requirement of secondary arrangement according to the instruction issuing action command received
The position of base positions；
S5: the cloth figure setting of process computer according to the technological requirements assigns action command to basic automatization and controls machine；
S6: basic automatization controls machine according to the instruction issuing action command received to actuating station is acted, and sets according to cloth figure
The position positioning of slab is completed in the requirement set；
Wherein, the requirement of secondary arrangement described in step S3 specifically:
SA1: when the finished product thickness for detecting current slab is less than 2.05mm, the finger of milling train side positioning is issued by process controller
It enables to basic automatization and controls machine；
SA2: when detecting the hardness of current slab >=6, the instruction of non-milling train side positioning is issued to basis by process controller
Automation control machine；
SA3: it when the steel grade for detecting current slab belongs to [50,55] in steel classification or 98, is issued by process computer
The instruction of centering positioning to basic automatization controls machine.
2. the method that one kind according to claim 1 can carry out the positioning of slab cloth according to steel grade and trimmed size, special
Sign is:
Secondary arrangement described in step S3 further include: when detect current slab steel classification be 06, and the steel grade at
When product thickness is less than 2.4mm, instruction to the basic automatization by issuing milling train side positioning by process controller controls machine.
3. the method that one kind according to claim 1 can carry out the positioning of slab cloth according to steel grade and trimmed size, special
Sign is:
Row number described in step S2 includes: 0 column；1 column and 2 column；
The corresponding long base of 0 column；The short base of the corresponding non-milling train side arrangement of 1 column；Described 2 arrange corresponding milling train side arrangement
Short base.
4. the method that one kind according to claim 1 can carry out the positioning of slab cloth according to steel grade and trimmed size, special
Sign is:
The heat (batch) number and row number of current slab described in step S2 take especially by process computer from production control is machine-readable；Or
Man-machine interaction interface is established, by manual entry.
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| CN201610931027.1A CN108004389B (en) | 2016-10-31 | 2016-10-31 | A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size |
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| CN201610931027.1A CN108004389B (en) | 2016-10-31 | 2016-10-31 | A kind of method that can carry out the positioning of slab cloth according to steel grade and trimmed size |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109916182A (en) * | 2019-04-09 | 2019-06-21 | 南京钢铁股份有限公司 | A kind of automatic steel loading system of bar plate heating stove and automatic steel loading method |
| CN114807587A (en) * | 2022-06-08 | 2022-07-29 | 重庆钢铁股份有限公司 | Automatic slab steel loading control method and system |
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