CN108114991B - A kind of top pinch roll energy-saving control method - Google Patents
A kind of top pinch roll energy-saving control method Download PDFInfo
- Publication number
- CN108114991B CN108114991B CN201611081047.0A CN201611081047A CN108114991B CN 108114991 B CN108114991 B CN 108114991B CN 201611081047 A CN201611081047 A CN 201611081047A CN 108114991 B CN108114991 B CN 108114991B
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- Prior art keywords
- pinch roll
- steel plate
- top pinch
- plc
- roller
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
Abstract
A kind of top pinch roll energy-saving control method, it is characterized in that, the method includes the following steps: step 1, cooling system PLC receives host computer cooling metal sheets information, and judge the whether non-cooled steel plate of the steel plate, step 2-1, it is such as no, then unanimously set according to the speed of bottom pinch roll on pinch roller and roller-way, step 2-2, in this way, then top pinch roll automatic energy saving mode starts, and step 3, rolling line material tracking PLC tracks non-cooled steel plate position, and judge: whether steel plate head position is more than or equal to 209m, or whether hot metal detector has rising edge signal, and roller table speed is greater than zero.According to the present invention, meet production technology and ensure equipment safety under conditions of, realize the position according at non-cooled steel plate, automatically switch top pinch roll stalling, reach and save electric energy purpose, realizes cost efficiency, meanwhile the present invention also may extend in the similar process in producing line.
Description
Technical field
The invention belongs to technical field of industrial automatic control, more particularly to metallurgical industry top pinch roll Energy Saving Control side
Method.Top pinch roll energy-saving control method according to the present invention, can be automatically performed top pinch roll start-up and shut-down control, reduce non-cooled steel
Electric energy loss under plate production status.
Background technique
Slab spray system be usually predominantly by 4 groups of water tanks and 10 pinch rollers (5 top pinch rolls, 5 bottom pinch rolls,
Each roller driven separately) it constitutes, each top pinch roll is driven by servo valve and is moved up and down, and is connected in direct quenching with steel plate
Touching.There are 4 groups of (double collectors) upper headers and 4 groups of (double collectors) lower collector pipes between 5 pairs of pinch rollers, it is cold to carry out high-pressure injection to steel plate
But, pinch roller running speed is calculated by steel plate cooling jig.Every pinch roller passes through universal-joint spindle by three-phase alternating current motor
Driving, each motor match a frequency converter.
But in actual production, no matter whether pinch roller comes into operation or whether pinch roller region has steel plate process, upper pinch
Roller (5) is constantly in rotary state.In material automatic tracking system, pinch roller function is non-when coming into operation, and top pinch roll is always
With the operation of 0.5m/s low speed, annual non-cooled Plate Production quantity accounts for about 50% or more total quantity, top pinch roll motor power consumption damage
It loses greatly, there is waste.If being considered as carrying out manually simple intervenes stalling, it is necessary to operator's frequent switching function back and forth,
Take time and effort, and intervene manually can not promptly and accurately control rhythm of production, also influence whether material information tracking and rhythm of production,
It requires not being inconsistent with automation mass production.Simultaneously as rolling after non-cooled steel plate, temperature generally at least also at 400 DEG C or more, on
Pinch roller stalls for a long time, also can have baking to roll surface one side region, influence the top pinch roll service life.
Summary of the invention
In order to overcome the problems referred above, present invention aims at provide a kind of top pinch roll energy-saving control method, according to this hair
It is bright, under the premise of meeting normal production, re-establish material tracking control logic.Work as cooling metal sheets, pinch roller is needed to come into operation
When, operating controls at some speed for upper and lower pinch roller and roller-way.But when non-cooled steel plate pinch roller does not come into operation, after judging rolling
Non-cooled steel plate head-tail automatically tracks positioned position, and retains certain home to control top pinch roll rotary state.
I.e. non-cooled steel plate is greater than a certain position, and top pinch roll velocity of rotation is set as zero, conversely, when being less than or equal to a certain position
When, at a slow speed it is 0.15m/s-0.25m/s by the setting of top pinch roll velocity of rotation, hot steel plate is avoided to toast when passing through to its roll surface,
So that top pinch roll can the position according at non-cooled steel plate automatically switch stalling, reach save electric energy purpose.
In order to achieve the above objectives, top pinch roll energy-saving control method technical solution of the invention is as follows:
A kind of top pinch roll energy-saving control method, which is characterized in that the method includes the following steps:
Step 1, cooling system PLC receive host computer cooling metal sheets information, and judge the whether non-cooled steel plate of the steel plate,
Step 2-1, if not, unanimously being set according to the speed of bottom pinch roll on pinch roller and roller-way,
Step 2-2, if so, then top pinch roll automatic energy saving mode starts,
Step 3, rolling line material tracking PLC track non-cooled steel plate position, and judge:
Whether steel plate head position is more than or equal to 209m or whether hot metal detector has rising edge signal, and roller-way speed
Degree is greater than zero,
Step 4-1, if not, waiting,
Step 4-2, if so, then generating top pinch roll starting operation instruction,
Step 5, cooling system PLC send top pinch roll starting operation instruction to rolling line material and automatically track PLC, rolling line object
Material automatically tracks PLC and receives instruction and execute,
Step 6 judges whether steel plate tail position is more than or equal to home, and roller table speed is greater than zero,
Step 7-1, if not, waiting,
Step 7-2, it shuts down instruction if so, then generating top pinch roll；
Step 8, cooling system PLC send 0m/s and automatically track PLC to rolling line material, and rolling line material automatically tracks PLC and connects
It receives and instructs and execute；
Step 9, top pinch roll automatic energy saving control terminate.
A kind of top pinch roll energy-saving control method according to the present invention, which is characterized in that in the step 4-2, on
The speed parameter that pinch roller starts operation instruction is 0.15m/s-0.25m/s.
A kind of top pinch roll energy-saving control method according to the present invention, which is characterized in that in the step 6, safety
Position is 235m.
According to the present invention, meet production technology and ensure equipment safety under conditions of, realize according to non-cooled steel
Position at plate automatically switches top pinch roll stalling, reaches and save electric energy purpose, realizes cost efficiency.
Detailed description of the invention
Fig. 1 is pinch roller relevant device site layout project schematic diagram.
Fig. 2 is that non-cooled steel plate automatically tracks position view in the present invention.
Fig. 3 is non-cooled steel plate energy-saving automatic control flow chart figure in the present invention.
In figure, 1 is top pinch roll, and 2 be bottom pinch roll, and 3 be non-cooled steel plate, 4 cooling metal sheets, and 5 be driving motor, 6
It is hot metal detector for finishing mill, 7,8 be pre-straightening machine.
Specific embodiment
Firstly, communicating text foundation between PLC is basis.Cooling system PLC and rolling line material are automatically tracked and are wanted between PLC
Foundation has text communication, is using TCP/IP communications protocol in Baosteel Heavy Plate Mill's.
Secondly, it is also key that steel plate position, which automatically tracks, after rolling.Steel plate position automatically tracks letter after how accomplishing rolling
Breath, steel plate position detection is realized using hot metal detector, and tracing positional is realized using PLC controller, specifically
It according to position on roller-way where steel plate is realized by corresponding group of roller table speed roller diameter integral of selection.To realize top pinch roll certainly
Dynamic energy conservation lays the foundation.
Finally, writing top pinch roll start and stop logical sequence is important content in the present invention.It is different by communication text code
To distinguish cooling metal sheets and non-cooled steel plate, realization control logic.
Top pinch roll is set in the present invention with 0.25m/s, is allowed for when 400 degree or more of hot-rolled steel plate passes through to it
There is baking, damages top pinch roll roll surface.In addition, considering that skidding etc. is asked in the abrasion and steel plate movement of rolling line roller-way in design
Topic, causing steel plate position to automatically track, there are certain errors, so, each reserved 10 meters before and after top pinch roll of safety away from
From other positions distance in design is to be applied to the installation site of equipment in the factory in the present invention.
According to the present invention, meet production technology and ensure equipment safety under conditions of, realize according to non-cooled steel
Position at plate automatically switches top pinch roll stalling, reaches and save electric energy purpose, realizes cost efficiency, meanwhile, the present invention
It may extend in the similar process in producing line.
Claims (3)
1. a kind of top pinch roll energy-saving control method, which is characterized in that the method includes the following steps:
Step 1, cooling system PLC receive host computer cooling metal sheets information, and judge whether the steel plate is non-cooled steel plate,
Step 2-1, if not, unanimously being set according to the speed of bottom pinch roll on pinch roller and roller-way,
Step 2-2, if so, then starting top pinch roll automatic energy saving mode, and
Step 3, rolling line material tracking PLC track non-cooled steel plate position, and judge:
Whether steel plate head position is more than or equal to whether 209m or hot metal detector have rising edge signal, and roller table speed is big
In zero, herein, steel plate head position refers at finishing mill rolling line to hot metal detector distance,
Step 4-1, if not, waiting,
Step 4-2, if so, then generating top pinch roll starting operation instruction,
Step 5, cooling system PLC send top pinch roll starting operation instruction to rolling line material and automatically track PLC, and rolling line material is certainly
Motion tracking PLC, which is received, to be instructed and executes,
Step 6 judges whether steel plate tail position is more than or equal to home, and herein, steel plate tail position refers to finishing mill rolling line
At the 10 meters of distances reserved after to top pinch roll, and roller table speed is greater than zero,
Step 7-1, if not, waiting,
Step 7-2, it shuts down instruction if so, then generating top pinch roll；
Step 8, cooling system PLC send 0m/s and automatically track PLC to rolling line material, and rolling line material automatically tracks PLC reception and refers to
It enables and executes；
Step 9, top pinch roll automatic energy saving control terminate.
2. a kind of top pinch roll energy-saving control method according to claim 1, which is characterized in that in the step 4-2, on
The speed parameter that pinch roller starts operation instruction is 0.15m/s-0.25m/s.
3. a kind of top pinch roll energy-saving control method according to claim 1, which is characterized in that in the step 6, safety
Position is 235m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081047.0A CN108114991B (en) | 2016-11-30 | 2016-11-30 | A kind of top pinch roll energy-saving control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081047.0A CN108114991B (en) | 2016-11-30 | 2016-11-30 | A kind of top pinch roll energy-saving control method |
Publications (2)
| Publication Number | Publication Date |
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| CN108114991A CN108114991A (en) | 2018-06-05 |
| CN108114991B true CN108114991B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611081047.0A Active CN108114991B (en) | 2016-11-30 | 2016-11-30 | A kind of top pinch roll energy-saving control method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110814022B (en) * | 2019-10-28 | 2021-03-23 | 北京科技大学设计研究院有限公司 | Automatic control method for front roller way of 5-level 3-vertical roughing mill set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100371097C (en) * | 2005-05-26 | 2008-02-27 | 上海宝信软件股份有限公司 | Control method of multiple material flow tracing |
| BR112012007752B1 (en) * | 2009-10-07 | 2021-07-13 | Nippon Steel Corporation | COOLING METHOD FOR HOT ROLLING |
| KR101439777B1 (en) * | 2013-06-14 | 2014-09-11 | 주식회사 포스코 | Apparatus and method of controlling finishign mill delevery temperature using interstand spray |
| CN203541110U (en) * | 2013-10-28 | 2014-04-16 | 武汉钢铁(集团)公司 | Sectional type laminar cooling system |
| CN104998912B (en) * | 2015-06-25 | 2017-06-13 | 四川省达州钢铁集团有限责任公司 | A kind of line traffic control temperature system automatic control method high |
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