CN107254561A - A kind of utilization PLC realizes the method that blast furnace gun is blocked up automatically - Google Patents
A kind of utilization PLC realizes the method that blast furnace gun is blocked up automatically Download PDFInfo
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- CN107254561A CN107254561A CN201710405041.2A CN201710405041A CN107254561A CN 107254561 A CN107254561 A CN 107254561A CN 201710405041 A CN201710405041 A CN 201710405041A CN 107254561 A CN107254561 A CN 107254561A
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- gun
- mud
- blocking
- blast furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/006—Automatically controlling the process
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- Manufacturing & Machinery (AREA)
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- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
The method that blast furnace gun is blocked up automatically is realized the present invention relates to a kind of utilization PLC, belongs to blast furnace ironmaking equipment technical field.Technical scheme is：Blast furnace is equipped with equipment operation platform, PLC control system, hydraulic power system and clay gun, and increase sets " blocking up automatically " selection mode on equipment operation platform, and application button carries out the switching selection between different modes；In PLC control system, control to clay gun is realized, by the logic control relation in typing PLC control system, using the feedback information of pressure monitoring instrument, the clay gun for automatically controlling stokehold completes blast furnace and blocked up operation.Beneficial effects of the present invention：Before more severe State of Blast Furnace in environment, using the monitoring signals in stokehold and hydraulic test to blocking up during beat mud amount, beat mud pressure, mud drum form and iron mouth pore passage state etc. and realize quantified controlling, and then eliminate signal interference problem when remote controller is blocked up and the undue dependence to artificial experience, stable iron mouthful quality.
Description
Technical field
The method that blast furnace gun is blocked up automatically is realized the present invention relates to a kind of utilization PLC, belongs to blast furnace ironmaking equipment and technology
Field.
Background technology
Blast fumance is to operate to tap a blast furnace to work in coordination with stokehold in an extremely complex process, stove that the working of a furnace could be realized
Direct motion steady in a long-term.As blast furnace maximizes, stokehold is tapped a blast furnace the requirement more and more higher of operation.It is most heavy that operation of blocking up is that stokehold is tapped a blast furnace
The operation wanted, the quality for operation of blocking up directly influences the working condition of iron mouthful.In the timing of stemming quality one, by holding
Block up opportunity, optimization beats mud pressure, beats the mud time and beats mud amount etc. and blocks up operation, can accurately control mud drum shape, raising iron
Oral pore road consistency, improves iron mouthful qualification rate.The artificial remote controller generally used at present controls clay gun come the behaviour that completes to block up
Make, because the preceding operating area electrical installation of State of Blast Furnace is more, more serious is disturbed to remote control control signal.Therefore, in reality
In production, during the work remote controller of post, occur often because signal is disturbed the situation for causing clay gun action to be stagnated, Qing Zheying
Quality of blocking up is rung, big gun head is caused blast furnace is stifled not shut up, triggers blast furnace checking, leaks informaton by severe one high temperature slag iron with the fusing of big gun neck,
The serious accident of iron is even run, the normal production of stokehold job safety and blast furnace has been had a strong impact on.Even if normally being produced in signal
In the case of, operating personnel are when controlling clay gun to block up, and psychological pressure is also larger.Molten iron directly washes away big gun head during due to blocking up,
So turn big gun, hit big gun, return big gun, pressure big gun, play the several actions of mud and must accomplish without any letup, quickly by iron mouthful closure, each action mistake
Difference is within 1 second, once operational error, irony big gun head is burned and can not blocked up quickly, easily triggers accident of blocking up.Meanwhile,
Because the control that mud amount is beaten during blocking up depends on artificial experience, so Fourth Shift personnel are in operation, because of individual difference
With the difference of operating habit, iron mouthful closure opportunity difficult to realize, the standardization control for playing the control of mud amount, iron mouthful ftercompction etc. are caused
The fluctuation of iron mouthful depth and quality, influences the row iron deslagging effect of blast furnace, and then the stable smooth operation of conditions of blast furnace.
The content of the invention
The method that blast furnace gun is blocked up automatically is realized it is an object of the present invention to provide a kind of utilization PLC.In more severe height
In the environment of stove stokehold, using the monitoring signals in stokehold and hydraulic test to blocking up during beat mud amount, beat mud pressure, mud drum
Form and iron mouth pore passage state etc. realize quantified controlling, so eliminate signal interference problem when remote controller is blocked up with
And the undue dependence to artificial experience, iron mouthful quality is improved, the above mentioned problem that background technology is present is solved.
The technical scheme is that：
A kind of utilization PLC realizes the method that blast furnace gun is blocked up automatically, and blast furnace is equipped with equipment operation platform, PLC control system, hydraulic pressure
Dynamical system and clay gun, increase sets " blocking up automatically " selection mode on equipment operation platform, and application button carries out different modes
Between switching selection；In PLC control system, the control to clay gun is realized, passes through the logic control in typing PLC control system
Relation processed, using the feedback information of pressure monitoring instrument, the clay gun for automatically controlling stokehold completes blast furnace and blocked up operation.
Comprise the following steps：
Progress block up operation when, by starting " blocking up automatically " button, start automatic program of blocking up, perform automatic process of blocking up；
After clay gun advances 8 seconds to working position first, PLC control system starts monitoring and turns big gun pressure change, turns big gun pressure>110bar
Or advance time cumulation reaches 13 seconds, conditions above is met, PLC judges that clay gun has struck taphole mud sleeve face；Now clay gun
Retract 1.5 seconds, readvance 2 seconds, progress is secondary to hit big gun compaction actions, to ensure sealing effectiveness；It is secondary to hit after big gun, if turning big gun pressure
170bar is still below, PLC control system judgement clay gun is blocked up, and sealing effectiveness is not up to standard, then clay gun retracts 25 seconds to standby position, ties
Shu Zidong, which blocks up, process and checks reason；If turning big gun pressure>170bar, PLC judge that clay gun sealing effectiveness of blocking up reaches requirement,
Then carry out next step and beat mud process；
PLC control system controls clay gun, mud is beaten first 10 seconds to ensure safety of blocking up；If beating mud pressure to continue to exceed for 3 seconds
270bar, and the mud oil circuit flow count value of beating of hydraulic power system continues not increase for 3 seconds, and PLC control system judges clay gun
Beat mud piston not advance, beat mud and stop PLC control system control clay gun, execution turns big gun ftercompction until pressure is more than
270bar, automatically the process of blocking up terminate；If the mud pressure of beating of hydraulic power system is not triggered, continue 3 seconds pressure and be more than
270bar beats mud oil circuit flow count value and continues 3 seconds not increased conditions, then continues to beat that mud extremely beats mud oil circuit added up oil
Amount reaches setting value, realizes that accurate control iron mouth beats the purpose of mud amount with this；Then, PLC control system control clay gun, execution turns big gun
Ftercompction is until pressure is more than 270bar, and the process of blocking up terminates automatically.
The beneficial effects of the invention are as follows：Implement the present invention method block up operation when without using remote control, thus pendulum
The signal interference problem easily occurred when remote control is blocked up is taken off, while can also further stablize iron mouthful quality and ensure peace of blocking up
Full operation, it is adaptable to domestic and international various blast furnaces.Take full advantage of each of the reliable and stable PLC control system in stokehold and hydraulic system
Individual measuring instrument, by process transfer big gun of being blocked up automatically to clay gun to working position, retract, advance, hit big gun, compacting, play mud, ftercompction
Real time data inspecting and quantization etc. link, can realize the control to block up effect and iron mouthful quality.Blocking up in the present invention
Judge iron mouthful seal degree by manually estimating, listening sound, number number etc. when method finishes blast furnace front hole blocking operation, beat mud amount
And the extensive style operation such as iron mouthful quality, have for stokehold safety work, stable iron mouthful quality and standardized work important
Realistic meaning.
Brief description of the drawings
Fig. 1 is the embodiment of the present invention in equipment operation platform increase " blocking up automatically " selection schematic diagram；
Marked in figure as follows：1st, selection of being blocked up before equipment operation platform 2, operation button 3, block up selection toggle 4, transformation is dialled
Blocked up selection toggle after button 5, transformation；
Fig. 2 is logic control schematic diagram of the present invention；
Fig. 3 is that the present invention blocks up process CIMS figure with prior art.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described.
A kind of utilization PLC realizes the method that blast furnace gun is blocked up automatically, blast furnace be equipped with equipment operation platform, PLC control system,
Hydraulic power system and clay gun, increase sets " blocking up automatically " selection mode on equipment operation platform, and application button carries out different
Switching selection between mode；In PLC control system, the control to clay gun is realized, passes through patrolling in typing PLC control system
Volume control planning, using the feedback information of pressure monitoring instrument, the clay gun for automatically controlling stokehold completes blast furnace and blocked up operation.
Comprise the following steps：
Progress block up operation when, by starting " blocking up automatically " button, start automatic program of blocking up, perform automatic process of blocking up；
After clay gun advances 8 seconds to working position first, PLC control system starts monitoring and turns big gun pressure change, turns big gun pressure>110bar
Or advance time cumulation reaches 13 seconds, conditions above is met, PLC judges that clay gun has struck taphole mud sleeve face；Now clay gun
Retract 1.5 seconds, readvance 2 seconds, progress is secondary to hit big gun compaction actions, to ensure sealing effectiveness；It is secondary to hit after big gun, if turning big gun pressure
170bar is still below, PLC control system judgement clay gun is blocked up, and sealing effectiveness is not up to standard, then clay gun retracts 25 seconds to standby position, ties
Shu Zidong, which blocks up, process and checks reason；If turning big gun pressure>170bar, PLC judge that clay gun sealing effectiveness of blocking up reaches requirement,
Then carry out next step and beat mud process；
PLC control system controls clay gun, mud is beaten first 10 seconds to ensure safety of blocking up；If beating mud pressure to continue to exceed for 3 seconds
270bar, and the mud oil circuit flow count value of beating of hydraulic power system continues not increase for 3 seconds, and PLC control system judges clay gun
Beat mud piston not advance, beat mud and stop PLC control system control clay gun, execution turns big gun ftercompction until pressure>270bar, from
The dynamic process of blocking up terminates；If the mud pressure of beating of hydraulic power system is not triggered, continue 3 seconds>270bar beats mud oil circuit stream
Gauge numerical value continues 3 seconds not increased conditions, then continue beat mud to beat mud oil circuit added up oil mass reach setting value, realized with this
Accurate control iron mouth beats the purpose of mud amount；Realize that accurate control iron mouth beats the purpose of mud amount with this.Then, PLC control system control
Clay gun processed, execution turns big gun ftercompction until pressure>270bar, automatically the process of blocking up terminate.
The present embodiment operating procedure is as follows：
Using it is automatic block up operation when, stokehold post personnel first have to determine that mud set face is complete, deep-controlled scope 30-70 ㎜；
Automatically before blocking up, big gun is tried, mud is pushed up and is ensured that clay gun retracts standby position with equipment operation platform；
Before tapping outlet, side and it is compacted now using the stifled full iron mouth of sandy soil.Before blocking up, the residue iron with compressed air iron mouth at the moment
After being blown clean with sandy soil, operation of blocking up can be carried out；
Equipment operation platform personnel are connected to after group leader's instruction, start automatic button of blocking up, and proceed by automatic operation of blocking up；
In order to ensure job safety of blocking up is stable, after system starts to perform automatic program of blocking up, if actual conditions are unsatisfactory for
Automatic requirement of blocking up, equipment operation platform controllers can according to circumstances, and termination auto-programming of having the right is changed to artificial operation, success
Illustrate the starting point and reason of the operation after blocking up again；
When blocking up automatically, equipment operation platform personnel will pay close attention to big gun situation, not seal the feelings for just beating mud if there is iron mouth
Clay gun control selections button will be switched to " operating desk control " and retract clay gun by condition, operating desk personnel in time；Ascertain the reason
And after taking measures, operation of blocking up is carried out again；
If automatic program envelope stifled iron notch of blocking up is normal, occur inputiing mud volume few situation when beating mud, equipment operation platform personnel want and
When clay gun control selections button is switched into " operating desk control ", judge whether to operating desk and mend mud manually.
Claims (2)
1. a kind of utilization PLC realizes the method that blast furnace gun is blocked up automatically, it is characterised in that：Blast furnace is equipped with equipment operation platform, PLC
Control system, hydraulic power system and clay gun, increase sets " blocking up automatically " selection mode, application button on equipment operation platform
Carry out the switching selection between different modes；In PLC control system, the control to clay gun is realized, system is controlled by typing PLC
Logic control relation in system, using the feedback information of pressure monitoring instrument, the clay gun completion blast furnace for automatically controlling stokehold is blocked up
Operation.
2. a kind of utilization PLC according to claim 1 realizes the method that blast furnace gun is blocked up automatically, it is characterised in that include
Following steps：
Progress block up operation when, by starting " blocking up automatically " button, start automatic program of blocking up, perform automatic process of blocking up；
After clay gun advances 8 seconds to working position first, PLC control system starts monitoring and turns big gun pressure change, turns big gun pressure>110bar
Or advance time cumulation reaches 13 seconds, conditions above is met, PLC judges that clay gun has struck taphole mud sleeve face；Now clay gun
Retract 1.5 seconds, readvance 2 seconds, progress is secondary to hit big gun compaction actions, to ensure sealing effectiveness；It is secondary to hit after big gun, if turning big gun pressure
170bar is still below, PLC control system judgement clay gun is blocked up, and sealing effectiveness is not up to standard, then clay gun retracts 25 seconds to standby position, ties
Shu Zidong, which blocks up, process and checks reason；If turning big gun pressure>170bar, PLC judge that clay gun sealing effectiveness of blocking up reaches requirement,
Then carry out next step and beat mud process；
PLC control system controls clay gun, mud is beaten first 10 seconds to ensure safety of blocking up；If beating mud pressure to continue to exceed for 3 seconds
270bar, and the mud oil circuit flow count value of beating of hydraulic power system continues not increase for 3 seconds, and PLC control system judges clay gun
Beat mud piston not advance, beat mud and stop PLC control system control clay gun, execution turns big gun ftercompction until pressure>270bar, from
The dynamic process of blocking up terminates；If the mud pressure of beating of hydraulic power system is not triggered, continue 3 seconds>270bar beats mud oil circuit stream
Gauge numerical value continues 3 seconds not increased conditions, then continue beat mud to beat mud oil circuit added up oil mass reach setting value；Then, PLC
Control system controls clay gun, and execution turns big gun ftercompction until pressure>270bar, automatically the process of blocking up terminate.
Priority Applications (1)
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| CN201710405041.2A CN107254561B (en) | 2017-06-01 | 2017-06-01 | A method of realizing that blast furnace gun is blocked up automatically using PLC |
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| CN201710405041.2A CN107254561B (en) | 2017-06-01 | 2017-06-01 | A method of realizing that blast furnace gun is blocked up automatically using PLC |
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| CN107254561A true CN107254561A (en) | 2017-10-17 |
| CN107254561B CN107254561B (en) | 2018-11-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113088595A (en) * | 2021-04-08 | 2021-07-09 | 宝武集团鄂城钢铁有限公司 | Control method for automatic plugging operation of blast furnace clay gun machine |
| CN113832276A (en) * | 2020-06-23 | 2021-12-24 | 宝山钢铁股份有限公司 | Automatic control method for intelligent iron blocking port of blast furnace tapping |
| CN115074473A (en) * | 2022-06-17 | 2022-09-20 | 马鞍山钢铁股份有限公司 | Remote intelligent maintenance system and method for mud beating mechanism |
| CN115198046A (en) * | 2022-08-12 | 2022-10-18 | 马鞍山钢铁股份有限公司 | Method for automatically starting and stopping blast furnace stokehole slag flushing equipment |
| CN116042940A (en) * | 2023-01-03 | 2023-05-02 | 中冶南方工程技术有限公司 | Method for automatically adding stemming in front of blast furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB424946A (en) * | ||||
| GB335211A (en) * | ||||
| CN201087195Y (en) * | 2007-08-17 | 2008-07-16 | 攀枝花新钢钒股份有限公司 | Hydraulic clay gun control system in front of blast furnace |
| CN202370919U (en) * | 2011-12-20 | 2012-08-08 | 宜昌市燕狮科技开发有限责任公司 | Automatic blast furnace hydraulic control system |
| KR101561840B1 (en) * | 2014-08-27 | 2015-10-20 | 주식회사 포스코 | Apparatus for preventing mud-gun from being pushed back |
| CN105112588A (en) * | 2015-09-26 | 2015-12-02 | 柳州钢铁股份有限公司 | Display device for mud charging quantity of blast furnace mud gun |
-
2017
- 2017-06-01 CN CN201710405041.2A patent/CN107254561B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB424946A (en) * | ||||
| GB335211A (en) * | ||||
| CN201087195Y (en) * | 2007-08-17 | 2008-07-16 | 攀枝花新钢钒股份有限公司 | Hydraulic clay gun control system in front of blast furnace |
| CN202370919U (en) * | 2011-12-20 | 2012-08-08 | 宜昌市燕狮科技开发有限责任公司 | Automatic blast furnace hydraulic control system |
| KR101561840B1 (en) * | 2014-08-27 | 2015-10-20 | 주식회사 포스코 | Apparatus for preventing mud-gun from being pushed back |
| CN105112588A (en) * | 2015-09-26 | 2015-12-02 | 柳州钢铁股份有限公司 | Display device for mud charging quantity of blast furnace mud gun |
Non-Patent Citations (1)
| Title |
|---|
| 张立新，楚小明: "可编程控制器(PLC)在泥炮控制中的应用", 《北京石油化工学院学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832276A (en) * | 2020-06-23 | 2021-12-24 | 宝山钢铁股份有限公司 | Automatic control method for intelligent iron blocking port of blast furnace tapping |
| CN113832276B (en) * | 2020-06-23 | 2022-12-16 | 宝山钢铁股份有限公司 | Automatic control method for intelligent iron blocking port of blast furnace tapping |
| CN113088595A (en) * | 2021-04-08 | 2021-07-09 | 宝武集团鄂城钢铁有限公司 | Control method for automatic plugging operation of blast furnace clay gun machine |
| CN115074473A (en) * | 2022-06-17 | 2022-09-20 | 马鞍山钢铁股份有限公司 | Remote intelligent maintenance system and method for mud beating mechanism |
| CN115198046A (en) * | 2022-08-12 | 2022-10-18 | 马鞍山钢铁股份有限公司 | Method for automatically starting and stopping blast furnace stokehole slag flushing equipment |
| CN115198046B (en) * | 2022-08-12 | 2023-08-22 | 马鞍山钢铁股份有限公司 | Automatic start-stop method for blast furnace stokehole water slag flushing equipment |
| CN116042940A (en) * | 2023-01-03 | 2023-05-02 | 中冶南方工程技术有限公司 | Method for automatically adding stemming in front of blast furnace |
| CN116042940B (en) * | 2023-01-03 | 2024-04-16 | 中冶南方工程技术有限公司 | Method for automatically adding stemming in front of blast furnace |
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| CN107254561B (en) | 2018-11-20 |
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