CN103290165A - Method for measuring distance between oxygen lance spray head and molten steel surface - Google Patents
Method for measuring distance between oxygen lance spray head and molten steel surface Download PDFInfo
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- CN103290165A CN103290165A CN2013102319089A CN201310231908A CN103290165A CN 103290165 A CN103290165 A CN 103290165A CN 2013102319089 A CN2013102319089 A CN 2013102319089A CN 201310231908 A CN201310231908 A CN 201310231908A CN 103290165 A CN103290165 A CN 103290165A
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- oxygen lance
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Abstract
The invention provides a method for measuring the distance between an oxygen lance spray head and a molten steel surface. According to the method, when a converter sublance is used for performing an end point test, a sublance meter and a sublance altimeter coder respectively transmit a detection signal of an oxygen electromotive force mutational site and a sublance height value to a sublance PLC (programmable logic controller), and the sublance PLC takes the sublance height value as a sublance head height value h and transmits the sublance head height value h to a liquid surface computer; the oxygen lance altimeter coder transmits an oxygen lance height value H to the liquid surface computer through a converter PLC; an operation computer transmits the distance d between the oxygen lance spray head and a sublance head, the length I of a sublance probe and the designed height S of a furnace bottom to the liquid surface computer; and the liquid surface computer respectively calculates the liquid level height B of a molten pool and the distance Y between the oxygen lance spray head and the molten steel surface according to B=h-S-I+d and Y=H-S-B. Therefore, the automatic measurement of the distance between the oxygen lance spray head of a converter and the molten steel surface is realized, errors of artificial measurement are reduced, the measurement accuracy is improved, operating conditions are improved, potential safety hazards are eliminated, and personal security is ensured.
Description
Technical field
The invention belongs to the smelting process parameter detection range, particularly a kind of method for automatic measurement for Oxygen Lance Nozzle for Converter and liquid steel level distance.
Background technology
At present, domestic steelworks measure Oxygen Lance Nozzle for Converter and liquid steel level apart from the time what all adopt is the method for manual measurement, this method needs lie prone converter mouth top use meter ruler and steel pipe of survey crew to measure.Not only measuring error is big, and control accuracy is smelted in influence; And labour intensity is big, and operating condition is abominable, and especially this operation belongs to high temperature, high-risk operations, exists scald, pounds and injure high-altitude Hazard Factor, the therefore healthy and life security that seriously jeopardizes survey crew such as fall.
Summary of the invention
The invention provides the method for automatic measurement of a kind of oxygen lance blow head and liquid steel level distance, its purpose is intended to reduce measuring error, improves control accuracy, improves operating condition simultaneously, eliminates safe hidden trouble, and guarantees personnel safety.
For this reason, the solution taked of the present invention is:
The measuring method of a kind of oxygen lance blow head and liquid steel level distance, utilize sublance instrument, sublance PLC, sublance altimeter coder, oxygen rifle altimeter coder and converter PLC, and set up liquid level computer, operational computations machine and display frame computer, measure by following step:
When 1, revolving furnace sublance carried out terminal test, the sublance instrument sent to sublance PLC with detected oxygen electromotive force catastrophe point detection signal, and the sublance altimeter coder sends to sublance PLC with the sublance height value.
2, sublance PLC notes the sublance height value in this moment, as sublance head height value h when receiving the oxygen electromotive force catastrophe point detection signal of sublance instrument.
3, sublance PLC sends to the liquid level computer with sublance head height value h.
4, oxygen rifle altimeter coder sends to converter PLC with oxygen rifle height value H.
5, converter PLC sends to the liquid level computer with oxygen rifle height value H.
6, the operational computations machine will send to the liquid level computer apart from d, auxiliary lance probe length I, furnace bottom design height S between oxygen lance blow head and the sublance head.
7, the liquid level computer calculates the molten metal pool level height B according to formula: B=h-S-I+d;
In the formula, d is obtained by actual measurement, and I, S are known.
Again according to formula: Y=H-S-B calculates the distance Y of oxygen lance blow head and liquid steel level, and calculation result is sent to the display frame computer is shown.
Compared with the prior art, beneficial effect of the present invention is:
1, realizes the automatic measurement of Oxygen Lance Nozzle for Converter and liquid steel level distance, reduced artificial measuring error, improved measuring accuracy, be conducive to the accurate control of converter steelmaking process;
2, avoid high temperature, high-risk operations, improved operating condition, alleviated the labour intensity of survey crew;
3, eliminated scald, pound and injure high-altitude accident potential such as fall, guarantee personnel safety.
Embodiment
The measuring method of oxygen lance blow head of the present invention and liquid steel level distance, mainly be to utilize original sublance instrument, sublance PLC, sublance altimeter coder, oxygen rifle altimeter coder and converter PLC, set up liquid level computer, operational computations machine and display frame computer simultaneously as required.Concrete measuring method and step are:
When 1, revolving furnace sublance carried out terminal test, the sublance instrument sent to sublance PLC with detected oxygen electromotive force catastrophe point detection signal, and the sublance altimeter coder sends to sublance PLC with the sublance height value.
2, sublance PLC notes the sublance height value in this moment, as sublance head height value h when receiving the oxygen electromotive force catastrophe point detection signal of sublance instrument.
3, sublance PLC sends to the liquid level computer with sublance head height value h.
4, oxygen rifle altimeter coder sends to converter PLC with oxygen rifle height value H.
5, converter PLC sends to the liquid level computer with oxygen rifle height value H.
6, the operational computations machine will send to the liquid level computer apart from d, auxiliary lance probe length I, furnace bottom design height S between oxygen lance blow head and the sublance head.
7, the liquid level computer calculates the molten metal pool level height B according to formula: B=h-S-I+d;
In the formula, d is obtained by actual measurement, and I, S are known definite value.
Again according to formula: Y=H-S-B, calculate the distance Y of oxygen lance blow head and liquid steel level, and calculation result is sent to the display frame computer, the picture computer is shown calculation result by picture.
Claims (1)
1. the measuring method of an oxygen lance blow head and liquid steel level distance, utilize sublance instrument, sublance PLC, sublance altimeter coder, oxygen rifle altimeter coder and converter PLC, it is characterized in that, set up liquid level computer, operational computations machine and display frame computer, measure by following step:
(1), when revolving furnace sublance carries out terminal test, the sublance instrument sends to sublance PLC with detected oxygen electromotive force catastrophe point detection signal, the sublance altimeter coder sends to sublance PLC with the sublance height value;
(2), sublance PLC when receiving the oxygen electromotive force catastrophe point detection signal of sublance instrument, note the sublance height value in this moment, as sublance head height value h;
(3), sublance PLC sends to the liquid level computer with sublance head height value h;
(4), oxygen rifle altimeter coder sends to converter PLC with oxygen rifle height value H;
(5), converter PLC sends to the liquid level computer with oxygen rifle height value H;
(6), the operational computations machine will send to the liquid level computer apart from d, auxiliary lance probe length I, furnace bottom design height S between oxygen lance blow head and the sublance head;
(7), the liquid level computer is according to formula: B=h-S-I+d, calculates the molten metal pool level height B;
Again according to formula: Y=H-S-B calculates the distance Y of oxygen lance blow head and liquid steel level, and calculation result is sent to the display frame computer is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102319089A CN103290165A (en) | 2013-06-11 | 2013-06-11 | Method for measuring distance between oxygen lance spray head and molten steel surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102319089A CN103290165A (en) | 2013-06-11 | 2013-06-11 | Method for measuring distance between oxygen lance spray head and molten steel surface |
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| Publication Number | Publication Date |
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| CN103290165A true CN103290165A (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102319089A Pending CN103290165A (en) | 2013-06-11 | 2013-06-11 | Method for measuring distance between oxygen lance spray head and molten steel surface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274280A (en) * | 2014-07-11 | 2016-01-27 | 鞍钢股份有限公司 | Method for accurately measuring liquid level of liquid steel |
| CN107142354A (en) * | 2017-03-28 | 2017-09-08 | 河钢股份有限公司邯郸分公司 | A kind of quick, safety oxygen lance position measuring method |
| CN108754071A (en) * | 2018-04-27 | 2018-11-06 | 中冶南方工程技术有限公司 | Mechanical mixing method desulfurizing iron system |
| CN115198097A (en) * | 2022-07-14 | 2022-10-18 | 云南铜业股份有限公司西南铜业分公司 | Automatic adjusting system and automatic adjusting method for insertion depth of reducing oil gun |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202501760U (en) * | 2012-01-04 | 2012-10-24 | 中国恩菲工程技术有限公司 | Oxygen lance insertion depth control system for metallurgical furnace |
| CN103045795A (en) * | 2013-01-25 | 2013-04-17 | 中冶京诚工程技术有限公司 | Liquid level measurement system of converter sublance |
-
2013
- 2013-06-11 CN CN2013102319089A patent/CN103290165A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202501760U (en) * | 2012-01-04 | 2012-10-24 | 中国恩菲工程技术有限公司 | Oxygen lance insertion depth control system for metallurgical furnace |
| CN103045795A (en) * | 2013-01-25 | 2013-04-17 | 中冶京诚工程技术有限公司 | Liquid level measurement system of converter sublance |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274280A (en) * | 2014-07-11 | 2016-01-27 | 鞍钢股份有限公司 | Method for accurately measuring liquid level of liquid steel |
| CN105274280B (en) * | 2014-07-11 | 2017-08-11 | 鞍钢股份有限公司 | A kind of method of accurate measurement liquid steel level |
| CN107142354A (en) * | 2017-03-28 | 2017-09-08 | 河钢股份有限公司邯郸分公司 | A kind of quick, safety oxygen lance position measuring method |
| CN108754071A (en) * | 2018-04-27 | 2018-11-06 | 中冶南方工程技术有限公司 | Mechanical mixing method desulfurizing iron system |
| CN115198097A (en) * | 2022-07-14 | 2022-10-18 | 云南铜业股份有限公司西南铜业分公司 | Automatic adjusting system and automatic adjusting method for insertion depth of reducing oil gun |
| CN115198097B (en) * | 2022-07-14 | 2024-03-26 | 云南铜业股份有限公司西南铜业分公司 | Automatic adjustment system and automatic adjustment method for insertion depth of reducing oil gun |
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Application publication date: 20130911 |