CN103978194B - Ladle precision apparatus for baking - Google Patents
Ladle precision apparatus for baking Download PDFInfo
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- CN103978194B CN103978194B CN201410207670.0A CN201410207670A CN103978194B CN 103978194 B CN103978194 B CN 103978194B CN 201410207670 A CN201410207670 A CN 201410207670A CN 103978194 B CN103978194 B CN 103978194B
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Abstract
The present invention relates to a kind of steel (iron) bag apparatus for baking in STEELMAKING PRODUCTION operation, a kind of for new blocks, cold repair, the accurate apparatus for baking of various steel (iron) water pot that is dried, has enough to meet the need and is rapidly heated online.Solve in steel-making the problem that in the molten steel operating from steel making working procedure to continuous casting working procedure, molten steel heat-energy losses is the biggest.Structure includes ladle and steel ladle cover, infrared temperature measurement apparatus, infrared probe, switch board, self-preheating type burner, storage heater, infrared temperature measurement apparatus, gas pipeline, and air duct is connected switch board and adds control accuracy, improve the reliability adding thermal reliability and observing and controlling.The present invention designs ingenious, perfect heating quality, reduce gas consumption, stablize the controlling of firing equipment, improve the baking temperature of ladle, to reducing tapping temperature, improve the life-span of body of heater, increase output of steel, reduce raw materials consumption, reduce ton steel cost, it is ensured that the direct motion of continuous casting all has important effect.
Description
Technical field
The present invention relates to a kind of steel (iron) bag apparatus for baking in STEELMAKING PRODUCTION operation, be specially a kind of ladle precision apparatus for baking.
Background technology
Steel (iron) bag baking is one of important step in STEELMAKING PRODUCTION operation.Be mainly used in newly building, cold repair, be dried, turnover and the baking of various steel (iron) water pot that is rapidly heated online.Tapping temperature, steelmaking operations rate, furnace life etc. are all had a great impact by the performance of apparatus for baking.Ladle baking is between steel-making and two main production processes of continuous casting, and the height of baking temperature of steel ladle plays an important role to coordinating integral production, and the meaning producing continuous casting is more great.
Along with the development of smelting technique, the function of ladle has a very large change, and it is not only the instrument transporting molten steel, has more been mainly a part into molten steel refining technology.But in steel mill's molten steel operating from steel making working procedure to continuous casting working procedure at present, the heat-energy losses of molten steel is very big, and wherein ladle accumulation of heat loss accounts for about the half of molten steel heat-energy losses.The purpose of ladle baking is to improve the temperature levels of ladle liner equably, to reduce the heat loss of pouring molten steel process and to extend the service life of ladle liner.If not using ladle baking method, compensate the heat-energy losses of molten steel.For ensureing temperature during pouring molten steel, the tapping temperature of the molten steel to be improved that is bound to.But this can bring a series of problem, tapping temperature to be improved, increase the duration of heat, increase raw materials consumption, improve ton steel cost etc., lining wear speed secondly also can be made to accelerate and reduce furnace life.It follows that the demand of high-quality steel and the development of higher temperature smelting technique, it is desirable to there is ladle baking facilities novel, efficient.
And control the temperature that challenge is how to measure rapidly and accurately ladle of ladle temperature, the consumption of natural gas is then regulated and controled according to the temperature of ladle.
Application number: 201220534526.4 1 kinds of devices quickly, accurately detected and control baking temperature of steel ladle, disclose use and include PLC, infrared measurement of temperature instrument, hot-wire anemometer and magnetic valve, infrared measurement of temperature instrument, hot-wire anemometer are connected with PLC respectively with magnetic valve, and described magnetic valve is provided with the technical scheme on fuel channel.The core of the program is that infrared temperature measurement apparatus is measured the temperature of ladle outer surface, then calculates the temperature within ladle, is then controlling fuel feed according to result of calculation.The defect of this device is, it is impossible to directly measures the temperature within ladle, makes result and actual value always have certain error.
Summary of the invention
The present invention is to solve in steel-making from the temperature controlled problem of ladle, it is provided that a kind of ladle precision apparatus for baking.
The technical scheme is that a kind of ladle precision apparatus for baking, structure includes: ladle and steel ladle cover, self-preheating type burner, fuel gas supply system, air supply system, system for detecting temperature and switch board, fuel gas supply system and air supply system connect self-preheating type burner jointly；
Described system for detecting temperature includes infrared radiation thermometer, infrared probe, and infrared probe embeds in steel ladle cover, and infrared radiation thermometer connects infrared probe by optical fiber；Infrared temperature measurement apparatus connects switch board；
Fuel gas supply system includes gas pipeline, gas pipeline is provided with combustion gas branch pipe(tube), gas pipeline concatenation electric control valve I, pneumatic control valve I, manual modulation valve II, flowmeter and hand off valve, electric control valve I, pneumatic control valve I and flowmeter connect switch board；Concatenating electric control valve II, pneumatic control valve II, manual modulation valve I on combustion gas branch pipe(tube), electric control valve II and pneumatic control valve II connect switch board；
Described air supply system includes air duct, air duct has two, it is respectively air duct I, air duct II, air duct I, air duct II connect reversal valve, reversal valve connects air-introduced machine, air blast, and the electric control valve of air-introduced machine and the electric control valve of air blast connect switch board.
Being additionally provided with storage heater, described air duct and gas pipeline and storage heater outside described self-preheating type burner to connect, connecting on steel ladle cover has bridge motor, and bridge motor connects switch board.
The invention has the beneficial effects as follows for Zong He: 1, equipped with infrared probe on steel ladle cover, infrared probe connects switch board by infrared temperature measurement apparatus, infrared probe can be with Accurate Determining ladle temperature, the interference such as flame and burning gases can be penetrated and directly measure the temperature of refractory material in ladle, obtain true and reliable temperature reading, increase combustion gas and the control accuracy of amount of supplied air, lower gas consumption, heating can be adjusted according to ladle lining in time, make heating effect reach optimal.
2, on gas pipeline, it is provided with combustion gas branch pipe(tube), line clogging can be prevented, just produce without impact with midway maintenance.
3, gas pipeline is serially connected with electric control valve, pneumatic control valve, manual modulation valve, flowmeter and hand off valve, electric control valve, pneumatic control valve and flowmeter connect switch board, electric control valve is concatenated respectively on combustion gas branch pipe(tube), pneumatic control valve, manual modulation valve, electric control valve and pneumatic control valve connect switch board, reversal valve is connected on air duct, reversal valve connects air-introduced machine respectively, air blast, the electric control valve of air-introduced machine and air blast connects switch board, increase switch board can solve operating personnel cannot the problem of accurate real-time judge ladle baking state, solve the problem that ladle baking real time data can not effectively be preserved and analyze, improve operating personnel's control to ladle baking state.
4, being provided with storage heater at the air inlet of steel ladle cover, storage heater connects air duct and gas pipeline, to reach preheating and fully to blend combustion gas and the purpose of air.
5, the air duct that the present invention uses has two, uses two air ducts can more easily control the supply of air capacity.
The present invention is a kind of for new blocks, cold repair, the accurate apparatus for baking of various steel (iron) water pot that is dried, has enough to meet the need and is rapidly heated online, and this device has quick heating, strong adaptability, the advantage such as easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention
In figure: 1-ladle, 2-steel ladle cover, 3-self-preheating type burner, 4-storage heater, 5-gas pipeline, 6-air duct I, 7-air duct II, 8-infrared probe, 9-infrared temperature measurement apparatus, 10-reversal valve, 11-electric control valve I, 12-pneumatic control valve I, 13-electric control valve II, 14-pneumatic control valve II, 15-combustion gas branch pipe(tube), 16-manual modulation valve I, 17-bridge motor, 18-manual modulation valve II, 19-flowmeter, 20-switch board, 21-hand off valve, 22-electric control valve III, 23-manual modulation valve III, 24-air-introduced machine, 25-manual modulation valve IV, 26-air blast, 27-electric control valve IV.
Detailed description of the invention
As schematically shown in Figure 1, a kind of ladle precision apparatus for baking, structure includes: ladle 1 and steel ladle cover 2, self-preheating type burner 3, fuel gas supply system, air supply system, system for detecting temperature and switch board 20, fuel gas supply system and air supply system connect self-preheating type burner 3 jointly；
Described system for detecting temperature includes infrared radiation thermometer 9, infrared probe 8, and infrared probe 8 embeds in steel ladle cover 2, and infrared radiation thermometer 9 connects infrared probe 8 by optical fiber；Infrared temperature measurement apparatus 9 connects switch board 20.
Temp measuring system of the present invention: use the Non-contacting Infrared Thermometer that the world is advanced, it is possible to penetrate the interference such as flame and burning gases and directly measure the temperature of refractory material in ladle, it is thus achieved that true and reliable temperature reading, accuracy of measurement 0.25%；The sensor using band optical fiber is contained in cantilever tip does not enter ladle as infrared temperature measurement apparatus, fiber lengths 6m, fibre-optical probe, and support is fixed on steel ladle cover by gas purging protection camera lens as sighting tube.Optical fiber can be selected for import armouring protective jacket and prevents flame calcination, to reduce maintenance and device damage.
Fuel gas supply system includes gas pipeline 5, gas pipeline 5 is provided with combustion gas branch pipe(tube) 15, gas pipeline 5 concatenates electric control valve I 11, pneumatic control valve I 12, manual modulation valve II 18, flowmeter 19 and hand off valve 21, and electric control valve I 11, pneumatic control valve I 12 and flowmeter 19 connect switch board 20.Concatenate electric control valve II 13, pneumatic control valve II 14, manual modulation valve I 16, electric control valve II 13 and pneumatic control valve II 14 on combustion gas branch pipe(tube) 15 and connect switch board 20.
Described air supply system includes air duct, air duct has two, it is respectively air duct I 6, air duct II 7, air duct I 6, air duct II 7 connect reversal valve 10, reversal valve 10 connects air-introduced machine 24, air blast 26, and the electric control valve 22 of air-introduced machine 24 and the electric control valve 27 of air blast 26 connect switch board 20.
It is additionally provided with storage heater 4, described air duct and gas pipeline and storage heater 4 outside described self-preheating type burner 3 to connect.
The interference of all kinds of factors of temp measuring system can be solved after using said temperature measurement apparatus and gas-air control device, improve the reliability of observing and controlling；Solve burning and cause fire clay cracky, improve the reliability that ladle uses.
Connecting on steel ladle cover 2 has bridge motor 17, bridge motor 17 to connect switch board 20, can better control over the rotation of steel ladle cover by bridge motor connects switch board.
Native system can reduce gas consumption: according to accurate temperature controlling, reaches to lower the purpose of gas consumption.Solution must not adjust the problem of computer heating control in time according to ladle lining, and native system can adjust heating in time according to ladle lining, makes heating effect reach optimal.Solving the problem that ladle baking real time data can not effectively be preserved and analyze, native system preserves ladle baking data up to 9 kinds, and not only system itself possesses data analysis and processes function, it is also possible to accurately provide analysis and data processed result for technologist.Solve operating personnel cannot the problem of accurate real-time judge ladle baking state, raising operating personnel's control to ladle baking state.Easily cause blocking in conjunction with coal gas feature, in gaspipe line designs, use bypass to overhaul halfway, do not affect production.
Described apparatus for baking mechanical control part is mainly made up of frame, rotating mechanism, steel ladle cover, combustion air heating system, gas rotating bindiny mechanism, blower fan, hoist engine, burning dispensing and electric-control system.
Claims (3)
1. a ladle precision apparatus for baking, it is characterized in that: structure includes: ladle (1) and steel ladle cover (2), self-preheating type burner (3), fuel gas supply system, air supply system, system for detecting temperature and switch board (20), fuel gas supply system and air supply system connect self-preheating type burner (3) jointly；Described system for detecting temperature includes infrared radiation thermometer (9), infrared probe (8), and infrared probe (8) embeds in steel ladle cover (2), and infrared radiation thermometer (9) connects infrared probe (8) by optical fiber；Infrared radiation thermometer (9) connects switch board (20)；Fuel gas supply system includes gas pipeline (5), gas pipeline (5) is provided with combustion gas branch pipe(tube) (15), gas pipeline (5) concatenation electric control valve I (11), pneumatic control valve I (12), manual modulation valve II (18), flowmeter (19) and hand off valve (21), electric control valve I (11), pneumatic control valve I (12) and flowmeter (19) connect switch board (20), combustion gas branch pipe(tube) (15) upper concatenation electric control valve II (13), pneumatic control valve II (14), manual modulation valve I (16), electric control valve II (13) and pneumatic control valve II (14) connect switch board (20)；Described air supply system includes air duct, air duct has two, it is respectively air duct I (6), air duct II (7), air duct I (6), air duct II (7) connect reversal valve (10), reversal valve (10) connects air-introduced machine (24), air blast (26), and the electric control valve (22) of air-introduced machine (24) and the electric control valve (27) of air blast (26) connect switch board (20).
Ladle precision apparatus for baking the most according to claim 1, it is characterised in that: it is additionally provided with storage heater (4), described air duct and gas pipeline and storage heater (4) outside described self-preheating type burner (3) and connects.
Ladle precision apparatus for baking the most according to claim 1, it is characterised in that: having bridge motor (17) in the upper connection of steel ladle cover (2), bridge motor (17) connects switch board (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410207670.0A CN103978194B (en) | 2014-05-16 | 2014-05-16 | Ladle precision apparatus for baking |
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| CN201410207670.0A CN103978194B (en) | 2014-05-16 | 2014-05-16 | Ladle precision apparatus for baking |
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| CN103978194A CN103978194A (en) | 2014-08-13 |
| CN103978194B true CN103978194B (en) | 2016-09-07 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975399A (en) * | 2014-10-23 | 2015-10-14 | 铜陵梧桐树农业发展有限公司 | Device used for purifying zirconia fibers |
| CN107855509A (en) * | 2016-09-22 | 2018-03-30 | 宝山钢铁股份有限公司 | Temperature measurement on-line control device and method in ladle baking |
| CN108723345A (en) * | 2017-04-24 | 2018-11-02 | 宝山钢铁股份有限公司 | A kind of continuous casting production baking quality monitoring device and its control method |
| CN107255648B (en) * | 2017-05-23 | 2020-07-17 | 闫靖媛 | Fire-resistant performance test device for fire-proof ring |
| CN110926619A (en) * | 2019-12-17 | 2020-03-27 | 湖北理工学院 | A continuous temperature measurement method for molten steel temperature in a ladle |
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| CN203936369U (en) * | 2014-05-16 | 2014-11-12 | 山西大杨创纪科技股份有限公司 | The accurate apparatus for baking of ladle |
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| US4462698A (en) * | 1982-04-21 | 1984-07-31 | Bloom Engineering Company, Inc. | Noncontact temperature sensing method and apparatus for ladle preheating |
| US5579821A (en) * | 1995-02-27 | 1996-12-03 | Vander Jagt; Adrian D. | Thermally efficient portable melting furnace |
| WO2008154595A2 (en) * | 2007-06-11 | 2008-12-18 | Nucor Corporation | Method of preheating steelmaking ladles |
| CN201249271Y (en) * | 2008-08-22 | 2009-06-03 | 宝山钢铁股份有限公司 | Baking device of continuous casting bakie immersion type water gap |
| CN202021340U (en) * | 2011-02-15 | 2011-11-02 | 湖南省越昌科技有限公司 | Omniseal heat accumulating type anti-explosion automatic roasting device |
| CN102211181A (en) * | 2011-06-03 | 2011-10-12 | 中核苏阀横店机械有限公司 | Steel ladle baking device |
| CN102806344B (en) * | 2012-09-06 | 2014-11-19 | 北京志能祥赢节能环保科技有限公司 | Oxygen-enriched ladle baking device by using low calorific value blast furnace coal gas |
| CN102886500B (en) * | 2012-10-18 | 2014-08-20 | 中钢集团鞍山热能研究院有限公司 | Method and device for rapidly and accurately detecting and controlling baking temperature of ladle |
| CN203418114U (en) * | 2013-07-24 | 2014-02-05 | 洛阳沃达机械技术开发有限公司 | Steel/iron ladle heat storage baking device |
| CN203578749U (en) * | 2013-12-14 | 2014-05-07 | 武汉科技大学 | Baking device for steel ladle |
| CN103722165B (en) * | 2013-12-31 | 2016-06-01 | 中冶南方工程技术有限公司 | The heat accumulating type vacuum chamber baking system of a kind of suitable for reading and lower mouth baking from vacuum chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203936369U (en) * | 2014-05-16 | 2014-11-12 | 山西大杨创纪科技股份有限公司 | The accurate apparatus for baking of ladle |
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Granted publication date: 20160907 |