CN110260019A - The control method of outer net steam control valve is sent when a kind of steel-making RH production - Google Patents
The control method of outer net steam control valve is sent when a kind of steel-making RH production Download PDFInfo
- Publication number
- CN110260019A CN110260019A CN201910265800.9A CN201910265800A CN110260019A CN 110260019 A CN110260019 A CN 110260019A CN 201910265800 A CN201910265800 A CN 201910265800A CN 110260019 A CN110260019 A CN 110260019A
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- China
- Prior art keywords
- outer net
- net steam
- steam
- control valve
- steel
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to the control methods that outer net steam control valve is sent when a kind of steel-making RH production, are switched over respectively according to first mode and second mode according to production requirement；Wherein, first mode are as follows: when RH is not handled, PLC control send outer net steam control valve to close when cylinder steam pressure is greater than first threshold, and otherwise, PLC control send outer net steam control valve to open；Second mode are as follows: when RH processing: when storage heater pressure is greater than second threshold, and outer net steam pressure is less than third threshold value, PLC control send outer net steam valve to open；When storage heater pressure is greater than five threshold values less than the 4th threshold value or outer net steam pressure, PLC control send outer net steam valve to close.The present invention improves amount of steam withdrawn.
Description
Technical field
The present invention relates to a kind of control methods of steam control valve, send outer net to steam when producing more particularly to a kind of steel-making RH
The control method of steam control valve.
Background technique
RH, which starts to produce, at present send outer net steam control valve to manually control closing by operator, since RH production needs largely
Steam, RH starts production storage heater and wants enough steam, so RH starts production and operator is needed to manually control closing, this feelings
Condition is unfavorable for Steam Recovery control.
Summary of the invention
Technical problem to be solved by the invention is to provide the controls that outer net steam control valve is sent when a kind of steel-making RH production
Method improves amount of steam withdrawn.
The technical solution adopted by the present invention to solve the technical problems is: sending outer net steam when providing a kind of steel-making RH production
The control method of regulating valve is switched over according to first mode and second mode respectively according to production requirement；Wherein, first mode
Are as follows: when RH is not handled, when cylinder steam pressure is greater than first threshold, PLC control send outer net steam control valve to close, otherwise,
PLC control send outer net steam control valve to open；Second mode are as follows: when RH processing: when storage heater pressure is greater than second threshold, and it is outer
When net steam pressure is less than third threshold value, PLC control send outer net steam valve to open；When storage heater pressure is less than the 4th threshold value, or
When outer net steam pressure is greater than five threshold values, PLC control send outer net steam valve to close.
The first threshold is 1.1MPa.
The second threshold is 1.6MPa.
The third threshold value is 1.0MPa.
4th threshold value is 1.4MPa.
5th threshold value is 1.2MPa.
Beneficial effect
Due to the adoption of the above technical solution, compared with prior art, the present invention having the following advantages that and actively imitating
Fruit: the present invention produces Converter Steam introducing RH furnace, the bottleneck of limitation production variety steel can be effectively solved, energy-saving
And it protects and produces aspect with clear advantage and applicability.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiments of the present invention are related to sending the control method of outer net steam control valve when a kind of steel-making RH production, according to life
Production demand is switched over according to first mode and second mode respectively；Wherein, first mode are as follows: when RH is not handled, when cylinder steams
PLC control send outer net steam control valve to close when steam pressure is greater than 1.1MPa, and otherwise, PLC control send outer net steam control valve to beat
It opens；Second mode are as follows: when RH processing: when storage heater pressure is greater than 1.6MPa, and outer net steam pressure is less than 1.0MPa, PLC
Control send outer net steam valve to open；When storage heater pressure is less than 1.4MPa or outer net steam pressure is greater than 1.2MPa, PLC control
System send outer net steam valve to close.
The present invention using when need to pre-enter program to computer, when RH start production when, operator's point on HMI
RH starts to produce button, and storage heater send outer net steam control valve that can be automatically adjusted to target set pressure value after RH starts production,
It ensure that the standardization of adjustment process, while whole process is automatically controlled by PLC, reduce to be manually controlled by operator and cause to store
Hot device frequently diffuses waste steam, substantially increases amount of steam withdrawn.
It is not difficult to find that can guarantee to be able to use Intranet Converter Steam when RH is produced by above-mentioned control method, if any
Surplus also guarantees normally to send outside, in the unproductive situation of RH, also can guarantee that Intranet Converter Steam conveys outward.
Estimated revenue effect of the invention is as follows:
Converter recovered steam makes steel total output according to 10% (Recent data) according to 83.70 yuan/ton of steam, RH productivity
It is calculated according to 370000 tons/month.
The moon increases income expense: (32kg/ tons of steel/1000) × (370000 × 10%) × 83.70 yuan/ton steam=9.91 ten thousand
Member.
Annual increase income expense: 9.91 ten thousand yuan/month × December=118.92 ten thousand yuan.
It can be seen that will protect the indirect benefit generated in terms of producing under the premise of meeting process requirements and not be included in calculating
In the case of, year generates direct economic benefit are as follows: 118.92 ten thousand yuan/year.Converter Steam introducing RH furnace is produced, can effectively be solved
The certainly bottleneck of limitation production variety steel has clear advantage and applicability in terms of energy-saving and protect production.
Claims (6)
1. sending the control method of outer net steam control valve when a kind of steel-making RH production, which is characterized in that distinguished according to production requirement
It is switched over according to first mode and second mode；Wherein, first mode are as follows: when RH is not handled, when cylinder steam pressure is greater than
PLC control send outer net steam control valve to close when first threshold, and otherwise, PLC control send outer net steam control valve to open；Second mould
Formula are as follows: when RH processing: when storage heater pressure is greater than second threshold, and outer net steam pressure is less than third threshold value, PLC control is sent
Outer net steam valve is opened；When storage heater pressure is greater than five threshold values less than the 4th threshold value or outer net steam pressure, PLC control
Outer net steam valve is sent to close.
2. sending the control method of outer net steam control valve when steel-making RH production according to claim 1, which is characterized in that institute
Stating first threshold is 1.1MPa.
3. sending the control method of outer net steam control valve when steel-making RH production according to claim 1, which is characterized in that institute
Stating second threshold is 1.6MPa.
4. sending the control method of outer net steam control valve when steel-making RH production according to claim 1, which is characterized in that institute
Stating third threshold value is 1.0MPa.
5. sending the control method of outer net steam control valve when steel-making RH production according to claim 1, which is characterized in that institute
Stating the 4th threshold value is 1.4MPa.
6. sending the control method of outer net steam control valve when steel-making RH production according to claim 1, which is characterized in that institute
Stating the 5th threshold value is 1.2MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265800.9A CN110260019A (en) | 2019-04-03 | 2019-04-03 | The control method of outer net steam control valve is sent when a kind of steel-making RH production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265800.9A CN110260019A (en) | 2019-04-03 | 2019-04-03 | The control method of outer net steam control valve is sent when a kind of steel-making RH production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110260019A true CN110260019A (en) | 2019-09-20 |
Family
ID=67913468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910265800.9A Pending CN110260019A (en) | 2019-04-03 | 2019-04-03 | The control method of outer net steam control valve is sent when a kind of steel-making RH production |
Country Status (1)
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| CN (1) | CN110260019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326381A (en) * | 2020-09-29 | 2022-04-12 | 上海梅山钢铁股份有限公司 | Modeling and control method for steelmaking steam balance |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381797A (en) * | 2008-10-28 | 2009-03-11 | 南京钢铁股份有限公司 | Steam supply apparatus for RH vacuum steel refining furnace |
| KR20100118010A (en) * | 2009-04-27 | 2010-11-04 | 현대제철 주식회사 | Apparatus for deciding operation starting point of vacuum degasing oxygen blowing |
| CN201665688U (en) * | 2010-03-17 | 2010-12-08 | 邯钢集团邯宝钢铁有限公司 | Recovery device of steam in steelmaking with revolving furnace |
| CN102185338A (en) * | 2011-05-12 | 2011-09-14 | 四川省达州钢铁集团有限责任公司 | Steam on-grid control system |
| CN202755015U (en) * | 2012-07-25 | 2013-02-27 | 黑龙江建龙钢铁有限公司 | Steam recovery system for steelmaking converters |
| CN104232846A (en) * | 2014-09-19 | 2014-12-24 | 马钢(集团)控股有限公司 | System and method for supplying steam to RH refining furnace |
| CN207468667U (en) * | 2017-10-19 | 2018-06-08 | 中冶南方工程技术有限公司 | Rectification systems and its steam organization of supply |
| CN108534128A (en) * | 2018-04-24 | 2018-09-14 | 邯郸钢铁集团有限责任公司 | A kind of parameter regulation means of two kinds of vapour systems of iron and steel enterprise supply and recycling |
| CN109184840A (en) * | 2018-09-29 | 2019-01-11 | 四川德胜集团钒钛有限公司 | Saturated steam generating set control system and control method |
-
2019
- 2019-04-03 CN CN201910265800.9A patent/CN110260019A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381797A (en) * | 2008-10-28 | 2009-03-11 | 南京钢铁股份有限公司 | Steam supply apparatus for RH vacuum steel refining furnace |
| KR20100118010A (en) * | 2009-04-27 | 2010-11-04 | 현대제철 주식회사 | Apparatus for deciding operation starting point of vacuum degasing oxygen blowing |
| CN201665688U (en) * | 2010-03-17 | 2010-12-08 | 邯钢集团邯宝钢铁有限公司 | Recovery device of steam in steelmaking with revolving furnace |
| CN102185338A (en) * | 2011-05-12 | 2011-09-14 | 四川省达州钢铁集团有限责任公司 | Steam on-grid control system |
| CN202755015U (en) * | 2012-07-25 | 2013-02-27 | 黑龙江建龙钢铁有限公司 | Steam recovery system for steelmaking converters |
| CN104232846A (en) * | 2014-09-19 | 2014-12-24 | 马钢(集团)控股有限公司 | System and method for supplying steam to RH refining furnace |
| CN207468667U (en) * | 2017-10-19 | 2018-06-08 | 中冶南方工程技术有限公司 | Rectification systems and its steam organization of supply |
| CN108534128A (en) * | 2018-04-24 | 2018-09-14 | 邯郸钢铁集团有限责任公司 | A kind of parameter regulation means of two kinds of vapour systems of iron and steel enterprise supply and recycling |
| CN109184840A (en) * | 2018-09-29 | 2019-01-11 | 四川德胜集团钒钛有限公司 | Saturated steam generating set control system and control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326381A (en) * | 2020-09-29 | 2022-04-12 | 上海梅山钢铁股份有限公司 | Modeling and control method for steelmaking steam balance |
| CN114326381B (en) * | 2020-09-29 | 2024-01-05 | 上海梅山钢铁股份有限公司 | Modeling and control method for steelmaking steam balance |
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Application publication date: 20190920 |