CN107475469A - A kind of method for preventing furnace top material tank for blast furnace heavy burder - Google Patents
A kind of method for preventing furnace top material tank for blast furnace heavy burder Download PDFInfo
- Publication number
- CN107475469A CN107475469A CN201710556990.0A CN201710556990A CN107475469A CN 107475469 A CN107475469 A CN 107475469A CN 201710556990 A CN201710556990 A CN 201710556990A CN 107475469 A CN107475469 A CN 107475469A
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- China
- Prior art keywords
- cpu
- feed bin
- batch
- furnace
- furnace roof
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
- C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a kind of method for preventing furnace top material tank for blast furnace heavy burder, it comprises the following steps：Increase detects a batch can and claims value compared with previous title value at regular intervals when each feed bin batch can closes the limit, vibratory sieve tight without return is started in feed bin program；When increase program is that batch can feeds in furnace roof CPU, a batch can is detected at regular intervals and claims value to be fluctuated within the positive and negative values of setting, sends alarm；Feed bin CPU tri-, which examines signal timing and completes backward furnace roof CPU, sends signal, then returns to feed bin CPU, and the signal triggering timing device returned by furnace roof CPU by furnace roof CPU, stopped main belt by 20 seconds during timer, sends alarm；The full signal of the empty material of two material is compared, the full signal protection of the empty material of increase detection material.Its purpose is to provide a kind of method for preventing furnace top material tank for blast furnace heavy burder efficiently, safe, solve the problems, such as because furnace roof batch can heavy burder causes blast furnace to be forced blowing-out.
Description
Technical field
The invention belongs to smelt iron field of engineering technology, in the normal productive process applied to blast furnace roof charging, effectively
Prevent the generation of furnace top material tank for blast furnace heavy burder accident.
Background technology
For large blast furnace, usual furnace roof batch can volume is smaller.When furnace roof batch can institute furnace burdening is more than batch can volume
When, cause upper sealing valve not close tight, furnace charge could be put into blast furnace by being forced blowing-out, and this phenomenon is exactly heavy burder.At present, three
Furnace roof heavy burder phenomenon occurs in kind situation：First, it is more to combine feed bin batch can, once any one lower sluice gate occur slipping material (
Shoudu Iron and Steel Co capital Tang such case happens occasionally), it is likely to cause Mi Guan on furnace roof not above to be forced blowing-out.Secondly as furnace roof
CPU with feed bin is separated, and when communication goes wrong or CPU redundancies switch, if furnace roof does not receive feed bin, CPU is sent
Three inspection signals, will also result in furnace roof heavy burder and be forced blowing-out.3rd, furnace top material tank for blast furnace detection material is empty to expect that full signal occurs
Failure, although display expects that empty actual batch can is reloaded into furnace charge in the case of having material, also result in the generation of heavy burder accident.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of side for preventing furnace top material tank for blast furnace heavy burder efficiently, safe
Method, solve the problems, such as because furnace roof batch can heavy burder causes blast furnace to be forced blowing-out.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, comprises the following steps：
Increase is when each feed bin batch can closes the limit, vibratory sieve tight without return is started in feed bin program, every one section
Batch can of time detecting claims value compared with previous title value, if the amplitude declined exceedes setting value, sends
Sound and light alarm；
When increase program is that batch can feeds in furnace roof CPU, a furnace roof batch can is detected at regular intervals and claims to be worth
Fluctuated within the positive and negative values of setting, time duration more than 60 seconds, illustrate that furnace roof is possible to not receive feed bin CPU is sent three
Signal is examined, sends sound and light alarm；
Feed bin CPU tri- examines the backward furnace roof CPU of signal timing completion and sends signal, then returns to feed bin CPU by furnace roof CPU,
And the signal returned by furnace roof CPU triggers the timer of 20 seconds, under normal circumstances the timer 2-3 seconds reset, if feed bin
CPU and furnace roof cpu data transmission abnormality, feed bin CPU timer will timing stopped main belt by 20 seconds, and send acousto-optic report
It is alert；
The full signal of the empty material of two material is combined and is compared, if flip-flop transition differs by more than setting value, acousto-optic
Alarm production operation personnel pay attention to, the full signal protection of the empty material of increase detection material, the cloth number of turns exactly are multiplied by into individual pen cloth
Just it can effectively be prevented from expecting that spacing wave sends out the generation for causing heavy burder accident by mistake with material issuing spacing wave after time.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, wherein each feed bin material is worked as in increase in feed bin program
When tank closes the limit, vibratory sieve tight without return is started, value is claimed to be compared with previous title value every the batch can of detection in 20 seconds
Compared with if the amplitude declined sends sound and light alarm more than 0.3 ton.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, wherein increase in furnace roof CPU program be batch can just
In charging, value is claimed to be fluctuated within the positive and negative values of setting every the furnace roof batch can of detection in 5 seconds, when charging is ties ore deposit, just
Negative value is set as positive and negative 0.7 ton, and when charging is coke, positive and negative values are set as positive and negative 0.3 ton, time duration more than 60 seconds, say
Open oven top is possible to not receive the three inspection signals that feed bin CPU is sent, sends sound and light alarm.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, wherein by the full signals of the empty material of two material combine into
Row compares, if flip-flop transition differs by more than 8 seconds, sound and light alarm prompting production operation personnel pay attention to.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, prevent feed bin batch can and slip material to make by increasing program
Into the possibility of heavy burder accident；The mutual inspection of Phase Receiver three the whether normal of signal of two CPU is gone out by programmed decision and informs behaviour to alarm
Take measures to handle as personnel；Normally whether alarmed teaching process personnel by the full signal of the empty material of programmed decision material, increased simultaneously
The protection of material spacing wave be effectively prevented material spacing wave hair cause the generation of heavy burder accident by mistake.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is to slip material alarming logic figure in the present invention；
Fig. 2 is that the furnace roof CPU tri- in the present invention examines signal detection logic figure；
Fig. 3 is that the feed bin in the present invention examines the normal detection logic chart of signal transmission with furnace roof CPU tri-；
Fig. 4 is the furnace roof material spacing wave defence program logic chart in the present invention.
Embodiment
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, comprises the following steps：
Increase is when each feed bin batch can closes the limit, vibratory sieve tight without return is started in feed bin program, every one section
Batch can of time detecting claims value compared with previous title value, if the amplitude declined exceedes setting value, sends
Sound and light alarm；
When increase program is that batch can feeds in furnace roof CPU, a furnace roof batch can is detected at regular intervals and claims to be worth
Fluctuated within the positive and negative values of setting, time duration more than 60 seconds, illustrate that furnace roof is possible to not receive feed bin CPU is sent three
Signal is examined, sends sound and light alarm；
Feed bin CPU tri- examines the backward furnace roof CPU of signal timing completion and sends signal, then returns to feed bin CPU by furnace roof CPU,
And the signal returned by furnace roof CPU triggers the timer of 20 seconds, under normal circumstances the timer 2-3 seconds reset, if feed bin
CPU and furnace roof cpu data transmission abnormality, feed bin CPU timer will timing stopped main belt by 20 seconds, and send acousto-optic report
It is alert；
The full signal of the empty material of two material is combined and is compared, if flip-flop transition differs by more than setting value, acousto-optic
Alarm production operation personnel pay attention to, the full signal protection of the empty material of increase detection material, the cloth number of turns exactly are multiplied by into individual pen cloth
Just it can effectively be prevented from expecting that spacing wave sends out the generation for causing heavy burder accident by mistake with material issuing spacing wave after time.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, wherein each feed bin material is worked as in increase in feed bin program
When tank closes the limit, vibratory sieve tight without return is started, value is claimed to be compared with previous title value every the batch can of detection in 20 seconds
Compared with if the amplitude declined sends sound and light alarm more than 0.3 ton.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, wherein increase in furnace roof CPU program be batch can just
In charging, value is claimed to be fluctuated within the positive and negative values of setting every the furnace roof batch can of detection in 5 seconds, when charging is ties ore deposit, just
Negative value is set as positive and negative 0.7 ton, and when charging is coke, positive and negative values are set as positive and negative 0.3 ton, time duration more than 60 seconds, say
Open oven top is possible to not receive the three inspection signals that feed bin CPU is sent, sends sound and light alarm.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, wherein by the full signals of the empty material of two material combine into
Row compares, if flip-flop transition differs by more than 8 seconds, sound and light alarm prompting production operation personnel pay attention to.
A kind of method for preventing furnace top material tank for blast furnace heavy burder of the present invention, prevent feed bin batch can and slip material to make by increasing program
Into the possibility of heavy burder accident；The mutual inspection of Phase Receiver three the whether normal of signal of two CPU is gone out by programmed decision and informs behaviour to alarm
Take measures to handle as personnel；Normally whether alarmed teaching process personnel by the full signal of the empty material of programmed decision material, increased simultaneously
The protection of material spacing wave be effectively prevented material spacing wave hair cause the generation of heavy burder accident by mistake.
The present invention is described in further detail below in conjunction with the accompanying drawings.
In the case of feed bin slips material, in feed bin program increase when each feed bin batch can close tight the limit, vibratory sieve without
When starting return, the batch can of detection in every 20 seconds claims value compared with previous title value, if the amplitude declined is more than 0.3
Ton, then sound and light alarm is sent, remind operating personnel to take measures to handle.Logic chart is as shown in Figure 1.
In the case of cpu signal transmission abnormality, when increase program is that batch can feeds in furnace roof CPU, every five seconds for example inspection
Surveying a furnace roof batch can claims value to be fluctuated within positive and negative (0.7 ton of ore deposit of knot, 0.3 ton of coke), time duration more than 60 seconds, illustrates stove
Top is possible to not receive the three inspection signals that feed bin CPU is sent, sends sound and light alarm, prevents furnace roof heavy burder.Logic chart such as Fig. 2 institutes
Show.
Add following program：Feed bin CPU tri- examines the backward furnace roof CPU of signal timing completion and sends signal, then by furnace roof CPU
Return to feed bin CPU, and the signal returned by furnace roof CPU triggers the timer of 20 seconds, under normal circumstances the timer 2-3 seconds
Reset.If feed bin CPU and furnace roof cpu data transmission abnormality, feed bin CPU timer will timing stopped main skin by 20 seconds
Band, and send sound and light alarm.Key frame sets " heavy burder alarm release " key, and click can release alarm.Logic chart such as Fig. 3 institutes
Show.
In the case of furnace roof batch can material spacing wave is sent out by mistake, the full signal of the empty material of two material is combined and is compared, such as
Fruit flip-flop transition differs by more than 8 seconds, then sound and light alarm prompting production operation personnel pay attention to, the full signals of the empty material of two material are available wherein
One of, another does standby, can switch at any time in program.In addition, the full signal protection of the empty material of increase detection material, is exactly by cloth feed ring
Number was multiplied by after the individual pen cloth time (8.4 seconds) just can effectively prevent from expecting that spacing wave misses hair and causes heavy burder thing with material issuing spacing wave
Therefore generation.Logic chart is as shown in Figure 4.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (4)
- A kind of 1. method for preventing furnace top material tank for blast furnace heavy burder, it is characterised in that comprise the following steps：Increase is when each feed bin batch can closes the limit, vibratory sieve tight without return is started in feed bin program, at regular intervals Batch can of detection claims value compared with previous title value, if the amplitude declined exceedes setting value, sends acousto-optic Alarm；When increase program is that batch can feeds in furnace roof CPU, a furnace roof batch can is detected at regular intervals and claims value setting Fluctuated within fixed positive and negative values, time duration more than 60 seconds, illustrate that furnace roof is possible to not receive the three inspection letters that feed bin CPU is sent Number, send sound and light alarm；Feed bin CPU tri-, which examines signal timing and completes backward furnace roof CPU, sends signal, then returns to feed bin CPU by furnace roof CPU, and by The signal that furnace roof CPU is returned triggers the timer of 20 seconds, under normal circumstances the timer 2-3 seconds resets, if feed bin CPU with Furnace roof cpu data transmission abnormality, feed bin CPU timer will timing stopped main belt by 20 seconds, and send sound and light alarm；The full signal of the empty material of two material is combined and is compared, if flip-flop transition differs by more than setting value, sound and light alarm Prompting production operation personnel pay attention to, the full signal protection of the empty material of increase detection material, the cloth number of turns exactly are multiplied by into the individual pen cloth time Just it can effectively prevent from expecting that spacing wave sends out the generation for causing heavy burder accident by mistake with material issuing spacing wave afterwards.
- 2. the method according to claim 1 for preventing furnace top material tank for blast furnace heavy burder, it is characterised in that：Increase in feed bin program The each feed bin batch can of sovolin close tight the limit, vibratory sieve without start return when, every 20 seconds detection batch can claim value with it is previous Secondary title value is compared, if the amplitude declined sends sound and light alarm more than 0.3 ton.
- 3. the method according to claim 2 for preventing furnace top material tank for blast furnace heavy burder, it is characterised in that：Increase in furnace roof CPU Add program for batch can feed when, every 5 seconds detection furnace roof batch can claim value to be fluctuated within the positive and negative values of setting, work as dress When expecting to tie ore deposit, positive and negative values are set as positive and negative 0.7 ton, and when charging is coke, positive and negative values are set as positive and negative 0.3 ton, and the time prolongs It is continuous more than 60 seconds, illustrate that furnace roof is possible to not receive the three inspection signals that feed bin CPU is sent, send sound and light alarm.
- 4. the method according to claim 3 for preventing furnace top material tank for blast furnace heavy burder, it is characterised in that：The empty material of two material is full Signal, which combines, to be compared, if flip-flop transition differs by more than 8 seconds, sound and light alarm prompting production operation personnel pay attention to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556990.0A CN107475469B (en) | 2017-07-10 | 2017-07-10 | A method of preventing furnace top material tank for blast furnace heavy burder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710556990.0A CN107475469B (en) | 2017-07-10 | 2017-07-10 | A method of preventing furnace top material tank for blast furnace heavy burder |
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| Publication Number | Publication Date |
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| CN107475469A true CN107475469A (en) | 2017-12-15 |
| CN107475469B CN107475469B (en) | 2019-06-07 |
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| CN201710556990.0A Active CN107475469B (en) | 2017-07-10 | 2017-07-10 | A method of preventing furnace top material tank for blast furnace heavy burder |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985669A (en) * | 2010-11-18 | 2011-03-16 | 中冶南方工程技术有限公司 | Method for automatically correcting differential-pressure compensation factors of weighing of top charging bucket |
| CN203096092U (en) * | 2013-01-21 | 2013-07-31 | 尚领军 | Blast furnace belt feeding control system |
| CN104296851A (en) * | 2014-08-28 | 2015-01-21 | 莱芜钢铁集团电子有限公司 | Blast furnace feeding control method and control device |
| CN205974569U (en) * | 2016-08-04 | 2017-02-22 | 武汉陆峰科技有限责任公司 | Pressure compensation weighing system based on blast furnace top control process |
-
2017
- 2017-07-10 CN CN201710556990.0A patent/CN107475469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985669A (en) * | 2010-11-18 | 2011-03-16 | 中冶南方工程技术有限公司 | Method for automatically correcting differential-pressure compensation factors of weighing of top charging bucket |
| CN203096092U (en) * | 2013-01-21 | 2013-07-31 | 尚领军 | Blast furnace belt feeding control system |
| CN104296851A (en) * | 2014-08-28 | 2015-01-21 | 莱芜钢铁集团电子有限公司 | Blast furnace feeding control method and control device |
| CN205974569U (en) * | 2016-08-04 | 2017-02-22 | 武汉陆峰科技有限责任公司 | Pressure compensation weighing system based on blast furnace top control process |
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| Publication number | Publication date |
|---|---|
| CN107475469B (en) | 2019-06-07 |
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