CN101082071A - Control method for oxygen gun blowing place - Google Patents
Control method for oxygen gun blowing place Download PDFInfo
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- CN101082071A CN101082071A CN 200710023902 CN200710023902A CN101082071A CN 101082071 A CN101082071 A CN 101082071A CN 200710023902 CN200710023902 CN 200710023902 CN 200710023902 A CN200710023902 A CN 200710023902A CN 101082071 A CN101082071 A CN 101082071A
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- oxygen
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- control method
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Abstract
The method of controlling oxygen blowing based on the location of the oxygen lance includes the following steps: for the central processor to detect and judge the location of the oxygen lance; and for the central processor to send signal for the control valve in the oxygen passage to shut off when the location of the oxygen lance is higher than the stand-by point, or to send signal for the control valve to open when it is in or lower than the stand-by point. The method of the present invention can avoid accident of damaging converter flue to ensure normal production.
Description
Technical field
The control method of oxygen gun blowing place when the present invention relates to steel-making converter work.
Background technology
The oxygen rifle has most significant digit usually, goes up rifle position, point to be blown, oxygen blast point, five working positions of lower-most point, the oxygen rifle promotes in the control device and is provided with position coder usually, provide oxygen rifle position signal for the oxygen rifle promotes control device, promote the working position of control device control oxygen rifle with auxiliary oxygen rifle.Steel-making converter is in normal productive process, and the oxygen rifle is positioned at the oxygen blast point normal oxygen blast is carried out in converter.In the STEELMAKING PRODUCTION process, the easy slagging scorification of converter flue inwall, operator often operate against regulations, waiting to blow a little above manual operation oxygen blast knob, open the oxygen valve to the oxygen blast of flue inwall with the cleaning slagging scorification, thereby cause walling of flue oxidized even burn out, greatly reduce the work-ing life of flue.According to Jiangsu Yonggang Group Co., Ltd. statistics, the flue of 5 converters of steelworks in 2006 damages and reaches 26 times, wherein have 21 times with oxygen blast violating the regulations to clear up slagging scorification relevant; Walling of flue is because often by the oxygen blast oxidation, has only its work-ing life normally about 60%, and the frequent damage of flue and the shortening in work-ing life are given and produced and maintenance has brought considerable influence, have caused very big financial loss to company.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of oxygen rifle that makes can not carry out the control method of oxygen blown oxygen gun blowing place waiting to blow a little above position.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the control method of described oxygen gun blowing place, comprise the steps: at first to detect the residing position of oxygen rifle, by central processing unit this position signal is carried out judgment processing: when oxygen rifle position is waiting to blow when a little above, central processing unit sends signal and makes control on the oxygen supply passage cut valve soon to be in closing condition, when oxygen rifle position when oxygen blast point or oxygen blast point are following, central processing unit sends signal and makes control on the oxygen supply passage cut valve soon to be in open mode.
The invention has the beneficial effects as follows: use method of the present invention, can avoid effectively damaging, reduce the consuming time and financial loss of bringing because of the flue damage of maintenance because of operator operate the flue that is caused against regulations.
Embodiment
The invention will be further described below by specific embodiment.
In the normal productive process of steel-making converter, the normal oxygen blast position of oxygen rifle is at the oxygen blast point, for preventing that operator from operating against regulations, in the oxygen blast process, at first detect the residing position of oxygen rifle, that is: the signal that the closing oxygen lance position is arranged that the oxygen rifle can be promoted the position coder in the control device is delivered to central processing unit, by central processing unit this position signal is carried out judgment processing, certainly, can in central processing unit, preestablish the respective value of five working positions of aerobic rifle, so that compare processing; Through the central processing unit judgment processing: when oxygen rifle position is waiting to blow when a little above, central processing unit sends signal and makes control on the oxygen supply passage cut valve soon to be in closing condition, when oxygen rifle position when oxygen blast point or oxygen blast point are following, central processing unit sends signal and makes control on the oxygen supply passage cut valve soon to be in open mode.
From the above mentioned as can be known, in the oxygen blast process, use above-mentioned control method, when the oxygen rifle is positioned at when waiting to blow a little above position, no matter how operator operate, because the oxygen supply passage is cut off, the oxygen rifle all can't blow out oxygen, thereby has avoided damaging because of operating the flue that is caused against regulations, has reduced the consuming time and financial loss of bringing because of the flue damage of maintenance.According to Jiangsu Yonggang Group Co., Ltd.'s measuring and calculating, steelworks is using method of the present invention aspect five flues, can reduce every year and keep in repair about more than 200 man-hours, saves about more than 80 ten thousand yuan of maintenance cost.
Claims (1)
1, the control method of oxygen gun blowing place, it is characterized in that: comprise the steps: at first to detect the residing position of oxygen rifle, by central processing unit this position signal is carried out judgment processing: when oxygen rifle position is waiting to blow when a little above, central processing unit sends signal and makes control on the oxygen supply passage cut valve soon to be in closing condition, when oxygen rifle position when oxygen blast point or oxygen blast point are following, central processing unit sends signal and makes control on the oxygen supply passage cut valve soon to be in open mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023902 CN101082071A (en) | 2007-06-26 | 2007-06-26 | Control method for oxygen gun blowing place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023902 CN101082071A (en) | 2007-06-26 | 2007-06-26 | Control method for oxygen gun blowing place |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101082071A true CN101082071A (en) | 2007-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710023902 Pending CN101082071A (en) | 2007-06-26 | 2007-06-26 | Control method for oxygen gun blowing place |
Country Status (1)
| Country | Link |
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| CN (1) | CN101082071A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010928A (en) * | 2010-12-15 | 2011-04-13 | 武汉钢铁(集团)公司 | Converter oxygen lance blowing control method based on dry dedusting process |
| CN102399933A (en) * | 2010-09-07 | 2012-04-04 | 鞍钢股份有限公司 | Automatic control method for converter blowing low-carbon steel oxygen lance |
| CN102424884A (en) * | 2011-10-19 | 2012-04-25 | 北京金自天正智能控制股份有限公司 | Lifting control system for oxygen gun accident and control method for oxygen gun accident |
| CN102676842A (en) * | 2011-03-10 | 2012-09-19 | 中国恩菲工程技术有限公司 | Ignition control system for oxygen top-blown smelting furnace |
| CN102676844A (en) * | 2011-03-10 | 2012-09-19 | 中国恩菲工程技术有限公司 | Method controlling spray gun of oxygen top-blown smelting furnace to descend |
-
2007
- 2007-06-26 CN CN 200710023902 patent/CN101082071A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399933A (en) * | 2010-09-07 | 2012-04-04 | 鞍钢股份有限公司 | Automatic control method for converter blowing low-carbon steel oxygen lance |
| CN102399933B (en) * | 2010-09-07 | 2013-12-11 | 鞍钢股份有限公司 | Automatic control method for converter blowing low-carbon steel oxygen lance |
| CN102010928A (en) * | 2010-12-15 | 2011-04-13 | 武汉钢铁(集团)公司 | Converter oxygen lance blowing control method based on dry dedusting process |
| CN102010928B (en) * | 2010-12-15 | 2012-09-26 | 武汉钢铁(集团)公司 | Converter oxygen lance blowing control method based on dry dedusting process |
| CN102676842A (en) * | 2011-03-10 | 2012-09-19 | 中国恩菲工程技术有限公司 | Ignition control system for oxygen top-blown smelting furnace |
| CN102676844A (en) * | 2011-03-10 | 2012-09-19 | 中国恩菲工程技术有限公司 | Method controlling spray gun of oxygen top-blown smelting furnace to descend |
| CN102676842B (en) * | 2011-03-10 | 2016-01-27 | 中国恩菲工程技术有限公司 | The Iganition control system of oxygen top-blown smelting furnace |
| CN102424884A (en) * | 2011-10-19 | 2012-04-25 | 北京金自天正智能控制股份有限公司 | Lifting control system for oxygen gun accident and control method for oxygen gun accident |
| CN102424884B (en) * | 2011-10-19 | 2013-06-12 | 北京金自天正智能控制股份有限公司 | Lifting control system for oxygen gun accident and control method for oxygen gun accident |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |