CN108817365B - Channel type tundish and heating and preheating method thereof - Google Patents
Channel type tundish and heating and preheating method thereof Download PDFInfo
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- CN108817365B CN108817365B CN201810727558.8A CN201810727558A CN108817365B CN 108817365 B CN108817365 B CN 108817365B CN 201810727558 A CN201810727558 A CN 201810727558A CN 108817365 B CN108817365 B CN 108817365B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 202
- 239000010959 steel Substances 0.000 claims abstract description 202
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000003546 flue gas Substances 0.000 claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000003643 water by type Substances 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims description 46
- 239000011819 refractory material Substances 0.000 claims description 22
- 238000004321 preservation Methods 0.000 claims description 9
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 239000007789 gas Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 10
- 239000000779 smoke Substances 0.000 description 10
- 238000009749 continuous casting Methods 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
- B22D41/01—Heating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/60—Pouring-nozzles with heating or cooling means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
A channel type tundish and a heating and preheating method thereof. The inside of middle package is separated for holding steel chamber and the chamber of watering by resistant material, be equipped with the molten steel passageway of connecting and holding steel chamber and the chamber of watering in the resistant material, it is equipped with the mouth of a river to water steel chamber bottom, it is equipped with and holds steel chamber and preheat the nozzle to hold the steel chamber, hold steel chamber flue gas outlet, it is equipped with and waters steel chamber and preheats the nozzle to water the steel chamber, it is equipped with and holds steel chamber and preheats the nozzle valve to hold the steel chamber flue gas outlet apron to water the steel chamber, it still is equipped with and waters steel chamber and preheats the nozzle valve to water the steel chamber, it waters steel chamber flue gas outlet apron, it holds the steel chamber, it all is equipped with the thermocouple in steel chamber and the mouth to water, adjust the on. The invention can make gas flow circularly in the preheating process of the tundish, and simultaneously utilizes the thermocouple to measure the lining temperature of the tundish, thereby controlling the opening of the nozzle valve of the tundish and the flue gas outlet cover plate, and enabling the channel and the water gap to achieve uniform and stable heating effect.
Description
Technical Field
The invention relates to the field of continuous casting, in particular to a channel type tundish and an alternate heating and preheating method thereof.
Background
In the early stages of the development of continuous casting technology, the tundish was used only as a storage and distributor of molten steel. With the development of continuous casting technology and the continuous improvement of the requirements on the quality of casting blanks, the important significance of the quality of molten steel on the continuous casting process is gradually known. In order to ensure the smooth and multi-furnace continuous casting in the continuous casting process, it is necessary to ensure sufficient purity of the molten steel, to control the composition range of the molten steel as precisely as possible, and to maintain stable molten steel temperature and superheat for a sufficient period of time. The function of the tundish, therefore, as the last refractory vessel in the steel smelting process, and also as the junction point for the transition from batch operation to continuous operation, is not negligible. It not only stabilizes the flow injection and realizes the multi-furnace continuous casting, but also plays an important role in promoting the floating removal of the inclusion and the purification of the molten steel.
The tundish is a large turnover part commonly used in steelmaking continuous casting production, and the lining of the tundish needs to be baked to about 1100 ℃ before use so as to meet the requirements of the production process. When the tundish is baked, the water in the casting material is fully and safely discharged, and the coating material is prevented from falling off and the stopper rod is prevented from cracking in the baking process. The tundish channel type induction heating device gradually popularized and applied in recent years formally is the most effective means for tundish temperature compensation and inclusion removal.
The traditional tundish passage type induction heating device is characterized in that an induction coil is arranged between a steel bearing cavity for receiving ladle molten steel and a tundish casting cavity, the induction coil is arranged along the central line of the casting direction of a ladle long nozzle (a ladle nozzle steel receiver), induction passages on two sides of the induction coil are perpendicular to a tundish long axis, and the arrangement requires that the center distance between the ladle nozzle (the steel receiver) of a continuous casting machine and the central line of the tundish nozzle must be large enough to ensure enough installation space of the induction coil and the length of a left induction passage and an induction passage.
Japanese patent laid-open No. Hei 4-224058 discloses an electromagnetic induction heating tundish. The tundish is a special electromagnetic induction tundish structure, mainly comprises a steel bearing cavity and a steel casting cavity, wherein the steel bearing cavity and the steel casting cavity are connected by two round hole channels, refractory materials are arranged between the round hole channels, and a tundish outlet is connected with a water inlet. Compared with the traditional tundish, the induction heating tundish mainly has the following differences in the preheating process:
(1) the distance between the channels at the two sides of the tundish is long, and the tundish cannot be baked by a special roaster, so that the temperature of the tundish is difficult to reach the temperature required by molten steel casting;
(2) the distance between the water gap of the tundish is long, and how to realize the purpose of preheating the water gap through the combined action of the water gap and a roaster in the tundish is not related in the current patent documents;
in patent CN104249148B, a channel type tundish is disclosed, which adopts a differential pressure preheating method, but there are more cavities and channels in the tundish, and the tundish lacks corresponding adjusting and controlling functions, and has lower controllability on the preheating process.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a channel type tundish and an alternate preheating method thereof, which realize the gas circulation flow in the preheating process of the tundish and enable a channel and a water gap to achieve the uniform and stable temperature rise effect.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a package in middle of passageway formula, the inside of middle package is separated by the refractory material and is held the steel chamber and water the steel chamber, be equipped with the connection in the refractory material hold the steel chamber and water the molten steel passageway in steel chamber, it is equipped with the mouth of a river and is equipped with the heat preservation stove to water steel chamber bottom, the heat preservation stove wraps up in the mouth of a river, the heat preservation stove bottom is equipped with the draught fan, the draught fan is equipped with the draught fan valve, it preheats the nozzle, holds steel chamber flue gas and exits to hold the steel chamber to be equipped with, it is equipped with to water the steel chamber and preheats the nozzle, waters steel chamber flue gas and exits, it still is equipped with to hold the steel chamber and preheats the nozzle valve, holds steel chamber flue gas and exits the apron to hold the steel chamber, it holds steel chamber thermocouple 17a, it waters steel chamber thermocouple 17b and mouth of a river thermocouple 17c to hold the steel chamber, it waters.
The flow rates of the steel bearing cavity preheating burner and the steel pouring cavity preheating burner are adjustable.
A temperature-raising preheating method comprises the processes of preheating initial stage, preheating middle stage and preheating later stage,
in the early preheating stage, opening a steel bearing cavity preheating burner valve, a steel casting cavity preheating burner valve, a steel bearing cavity flue gas outlet cover plate, a steel casting cavity flue gas outlet cover plate and an induced draft fan valve, so that refractory materials at each position of the tundish are in a pre-baking stage, and preheating combustion flue gas is discharged by the steel bearing cavity flue gas outlet, the steel casting cavity flue gas outlet and the induced draft fan together;
in the middle stage of preheating, the thermocouples detect the temperature of each refractory material position, and the opening and closing states of the steel bearing cavity flue gas outlet cover plate and the steel pouring cavity flue gas outlet cover plate and the flow rates of the steel bearing cavity preheating burner valve and the steel pouring cavity preheating burner valve are adjusted according to the temperature difference;
and in the later stage of preheating, when the temperature difference of the positions of the refractory materials is reduced, the steel cavity flue gas outlet cover plate and the cast steel cavity flue gas outlet cover plate are alternately switched on and off.
The switch state in the middle preheating period is adjusted according to the detection temperature of the thermocouple, and the switch state comprises the following steps:
when the refractory temperature of the steel bearing cavity of the tundish is lower, closing the cover plate of the flue gas outlet of the steel casting cavity to increase the flue gas flow of the steel bearing cavity and increase the valve flow of the preheating burner of the steel bearing cavity so as to increase the preheating temperature of the steel bearing cavity;
when the refractory temperature of the steel casting cavity of the tundish is lower, closing the cover plate of the flue gas outlet hole of the steel bearing cavity to increase the flow of the flue gas of the steel casting cavity and increase the flow of a preheating burner valve of the steel casting cavity to increase the preheating temperature of the steel casting cavity;
when the temperature of the tundish nozzle is low, the steel bearing cavity and the cover plate of the flue gas outlet of the steel pouring cavity are closed, so that the flow of flue gas in the nozzle heat-preserving furnace is increased, and the preheating temperature of the nozzle is increased.
The invention has the beneficial effects that: 1) the invention has the function of adjusting the airflow and the temperature of each chamber of the tundish in real time, and can carry out sectional heating and local heating according to the process requirements; 2) the invention can realize the uniform temperature rise of each chamber and the water gap refractory material in the tundish, and avoids the thermal stress formed by overlarge temperature difference of the refractory material, thereby avoiding the cracking and deformation of the refractory material due to the thermal stress; 3) the invention is simple and easy to operate, and the related equipment has simple structure and is convenient to implement; 4) the preheating of the channel, the water gap and the tundish cavity is comprehensively considered, and the system is provided; 5) the invention realizes the preheating of the whole system by using the circular flow of the flue gas, and the preheating temperature does not have local high points, thereby being beneficial to protecting the uniformity of the whole refractory system; 6) the invention is basically carried out in a closed environment, and prevents the phenomenon that the atmosphere reflows to oxidize the refractory material.
Drawings
Fig. 1 is a schematic structural diagram of an intermediate packet in an embodiment of the present invention.
Detailed Description
The embodiments of the invention will be further described with reference to the accompanying drawings in which:
in the embodiment of the invention, the tundish is internally divided into a steel bearing cavity 5 and a steel pouring cavity 6 by a refractory material 7, the refractory material 7 is internally provided with a molten steel channel 8 for connecting the steel bearing cavity 5 and the steel pouring cavity 6, the bottom of the steel pouring cavity 6 is provided with a water gap 9 and a suction type heat preservation furnace 10 for wrapping the water gap 9, the bottom of the heat preservation furnace 10 is provided with an induced draft fan 11, the induced draft fan 11 is provided with an induced draft fan valve 12, the gas pressure in the heat preservation furnace is kept negative through the induced draft fan 11, so that the smoke flow in the steel pouring cavity can flow out to an exhaust pipe through the water gap inner cavity, the steel bearing cavity 5 is provided with a steel bearing cavity preheating burner 1 and a steel bearing cavity smoke outlet 3a, and the steel pouring cavity 6 is provided with a steel pouring cavity preheating burner 2 and a.
Bear steel chamber and preheat nozzle 1 department and be equipped with and bear steel chamber and preheat nozzle valve 13, bear steel chamber flue gas and exit 3a department and be equipped with and bear steel chamber flue gas and exit apron 15, steel chamber preheats nozzle 2 department and is equipped with and waters steel chamber and preheat nozzle valve 14, waters steel chamber flue gas and exit 3b department and be equipped with and water steel chamber flue gas and exit apron 16, and the apron is all flexible, through the adjustable nozzle flow that preheats that holds steel chamber and preheat the chamber of nozzle valve.
And a steel bearing cavity thermocouple 17a, a steel casting cavity thermocouple 17b and a water gap thermocouple 17c are arranged at the refractory material positions of the steel bearing cavity 5, the steel casting cavity 6 and the water gap 9 and used for detecting the temperature of the refractory material.
The temperature-raising preheating method is carried out in stages according to the refractory temperature:
at the initial stage of preheating, open and hold steel chamber preheating burner nozzle valve, water steel chamber preheating burner nozzle valve and burn and preheat, open simultaneously and hold steel chamber flue gas and exit the apron, water steel chamber flue gas and exit the apron, open the draught fan valve for resistant material everywhere of pouring basket is in the stage of prebaking, preheats the burning flue gas this moment and is discharged by holding steel chamber flue gas and leaving, watering steel chamber postponing, draught fan respectively.
In the middle stage of preheating, the opening positions of the preheating burner and the cover plate are adjusted by detecting thermocouples at the positions of various refractory materials. When the refractory temperature of the steel bearing cavity of the tundish is lower, the cover plate of the flue gas outlet of the steel casting cavity is closed, so that the flue gas flow of the steel bearing cavity is increased, and the preheating temperature of the steel bearing cavity is increased; when the temperature of refractory materials in the steel casting cavity of the tundish is lower, the cover plate for the smoke outlet of the steel bearing cavity is closed, so that the smoke flow of the steel casting cavity is increased, the preheating temperature of the steel casting cavity is increased, and when the temperature of the water gap of the tundish is low, the cover plates for the smoke outlet of the steel bearing cavity and the steel casting cavity are closed, so that the smoke flow of the water gap heat preserving furnace is increased, and the preheating temperature of the water gap is improved.
In the later stage of preheating, when the temperature difference detected by thermocouples at various refractory material positions becomes small, alternate reversing smoke circulation is carried out, the steel bearing cavity smoke outlet cover plate is closed at intervals, and the steel casting cavity smoke outlet cover plate is closed at intervals, so that the cyclic reciprocating alternate heating of smoke in the tundish cavity is realized, and finally the temperature of the whole tundish refractory material cavity rises to reach the required temperature.
Example 1
At the initial stage of preheating, open and hold steel chamber preheating burner nozzle valve, water steel chamber preheating burner nozzle valve and burn and preheat, open simultaneously and hold steel chamber flue gas and exit the apron, water steel chamber flue gas and exit the apron, open the draught fan valve for resistant material everywhere of pouring basket is in the stage of prebaking, preheats the burning flue gas this moment and is discharged by holding steel chamber flue gas and leaving, watering steel chamber postponing, draught fan respectively.
In the preheating process, the refractory temperature of the steel bearing cavity is 150 ℃ lower than that of the steel casting cavity and the refractory temperature of the water gap, at the moment, the flue gas outlet cover plate of the steel casting cavity is closed, the flue gas flow of the steel bearing cavity is increased, the valve flow of the preheating burner of the steel bearing cavity is increased, and after 20 minutes of preheating, the temperature of the steel bearing cavity, the flue gas outlet cover plate of the preheating burner and the preheating burner is measured to be less than 100.
And finally, in an alternate preheating and temperature rising stage, opening a steel casting cavity flue gas outlet cover plate, closing a steel bearing cavity flue gas outlet cover plate, and after 10 minutes, realizing reversing to ensure that the temperature of the whole tundish is uniformly and relatively low and rises until the technological requirement is met.
Example 2
At the initial stage of preheating, open and hold steel chamber preheating burner nozzle valve, water steel chamber preheating burner nozzle valve and burn and preheat, open simultaneously and hold steel chamber flue gas and exit the apron, water steel chamber flue gas and exit the apron, open the draught fan valve for resistant material everywhere of pouring basket is in the stage of prebaking, preheats the burning flue gas this moment and is discharged by holding steel chamber flue gas and leaving, watering steel chamber postponing, draught fan respectively.
In the preheating process, the refractory temperature of the steel bearing cavity is 200 ℃ lower than that of the steel casting cavity and the refractory temperature of the water gap, at the moment, the flue gas outlet cover plate of the steel casting cavity is closed, the flue gas flow of the steel bearing cavity is increased, the valve flow of the preheating burner of the steel bearing cavity is increased, and after 30 minutes of preheating, the temperature of the three is measured to be less than 80 ℃.
And finally, in an alternate preheating and temperature rising stage, opening a steel casting cavity flue gas outlet cover plate, closing a steel bearing cavity flue gas outlet cover plate, and after 8 minutes, realizing reversing to ensure that the temperature of the whole tundish is uniformly and relatively low and rises until the technological requirement is met.
Example 3
At the initial stage of preheating, open and hold steel chamber preheating burner nozzle valve, water steel chamber preheating burner nozzle valve and burn and preheat, open simultaneously and hold steel chamber flue gas and exit the apron, water steel chamber flue gas and exit the apron, open the draught fan valve for resistant material everywhere of pouring basket is in the stage of prebaking, preheats the burning flue gas this moment and is discharged by holding steel chamber flue gas and leaving, watering steel chamber postponing, draught fan respectively.
In the preheating process, the refractory temperature of the steel casting cavity is 120 ℃ lower than that of the steel casting cavity and the refractory temperature of the water gap, at the moment, the steel bearing cavity flue gas outlet cover plate is closed, the flue gas flow of the steel casting cavity is increased, the valve flow of the preheating burner of the steel casting cavity is increased, and after preheating is carried out for 18 minutes, the temperature of the steel casting cavity, the preheating burner and the preheating burner is measured to be less than 60 ℃.
And finally, in an alternate preheating and temperature rising stage, opening a steel bearing cavity flue gas outlet cover plate, closing the steel casting cavity flue gas outlet cover plate, and after 15 minutes, realizing reversing to ensure that the temperature of the whole tundish is uniformly and relatively low and rises until the technological requirement is met.
According to the invention, the channel type tundish enables the temperature of each chamber and the water gap refractory material to rise uniformly by the temperature rising and preheating method, has the function of adjusting the airflow and the temperature of each chamber of the tundish in real time, and can carry out sectional type temperature rising and local temperature rising according to the process requirements.
The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.
Claims (5)
1. A heating and preheating method for a channel type tundish is characterized by comprising the following steps: the inside of middle package is separated by refractory (7) for holding steel chamber (5) and watering steel chamber (6), be equipped with the connection in refractory (7) hold steel chamber (5) and water molten steel passageway (8) of watering steel chamber (6), it is equipped with mouth of a river (9) to water steel chamber (6) bottom, it preheats nozzle (1), holds steel chamber flue gas outlet (3 a) to hold steel chamber (5) to be equipped with holding steel chamber, it preheats nozzle (2) to water steel chamber (6), waters steel chamber flue gas outlet (3 b), it still is equipped with holding steel chamber and preheats nozzle valve (13) to hold steel chamber flue gas outlet apron (15) to hold steel chamber (5), it preheats nozzle valve (14) still to water steel chamber (6), it waters steel chamber flue gas outlet apron (16), all be equipped with the thermocouple in holding steel chamber (5), watering steel chamber (6) and the mouth of a river, preheat the process of method including preheating the initial stage, The middle stage of preheating and the later stage of preheating,
in the early preheating stage, a steel bearing cavity preheating burner valve (13), a steel casting cavity preheating burner valve (14), a steel bearing cavity flue gas outlet cover plate (15), a steel casting cavity flue gas outlet cover plate (16) and an induced draft fan valve (12) are opened, so that refractory materials at each position of a tundish are in a pre-baking stage, and preheating combustion flue gas is discharged by a steel bearing cavity flue gas outlet (3 a), a steel casting cavity flue gas outlet (3 b) and an induced draft fan (11) together;
in the middle stage of preheating, the thermocouples detect the temperature of each refractory material position, and the on-off states of the steel bearing cavity flue gas outlet cover plate (15) and the steel casting cavity flue gas outlet cover plate (16) and the flow rates of the steel bearing cavity preheating burner valve (13) and the steel casting cavity preheating burner valve (14) are adjusted according to the temperature difference;
in the later stage of preheating, the temperature difference of the positions of the refractory materials is reduced, and the steel cavity flue gas outlet cover plate (15) and the cast steel cavity flue gas outlet cover plate (16) are alternately switched.
2. The temperature-raising and preheating method including the tunnel tundish according to claim 1, wherein: and a heat preservation furnace (10) is arranged at the bottom of the steel pouring cavity (6), and the heat preservation furnace (10) wraps the water gap (9).
3. The temperature-raising and preheating method including the tunnel tundish according to claim 2, wherein: the bottom of the heat preservation furnace (10) is provided with an induced draft fan (11), and the induced draft fan (11) is provided with an induced draft fan valve (12).
4. The temperature-raising and preheating method including the tunnel tundish according to claim 2, wherein: the flow rates of the steel bearing cavity preheating burner (1) and the steel casting cavity preheating burner (2) are adjustable.
5. A temperature-raising and preheating method comprising a tunnel tundish according to claim 1, 2, 3 or 4, wherein: the switching state in the middle warm-up period includes:
when the refractory temperature of the steel bearing cavity of the tundish is lower, closing the cover plate of the flue gas outlet of the steel casting cavity to increase the flue gas flow of the steel bearing cavity and increase the valve flow of the preheating burner of the steel bearing cavity so as to increase the preheating temperature of the steel bearing cavity;
when the refractory temperature of the steel casting cavity of the tundish is lower, closing the cover plate of the flue gas outlet hole of the steel bearing cavity to increase the flow of the flue gas of the steel casting cavity and increase the flow of a preheating burner valve of the steel casting cavity to increase the preheating temperature of the steel casting cavity;
when the temperature of the tundish nozzle is low, the steel bearing cavity and the cover plate of the flue gas outlet of the steel pouring cavity are closed, so that the flow of flue gas in the nozzle heat-preserving furnace is increased, and the preheating temperature of the nozzle is increased.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810727558.8A CN108817365B (en) | 2018-07-05 | 2018-07-05 | Channel type tundish and heating and preheating method thereof |
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| CN201810727558.8A CN108817365B (en) | 2018-07-05 | 2018-07-05 | Channel type tundish and heating and preheating method thereof |
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| CN108817365B true CN108817365B (en) | 2020-05-05 |
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| CN109648068B (en) * | 2019-01-29 | 2024-06-21 | 大冶特殊钢有限公司 | Induction heating tundish steel flow channel and protection method thereof |
| CN114393201A (en) * | 2022-01-07 | 2022-04-26 | 江苏省沙钢钢铁研究院有限公司 | Long launder baking device and baking method for vacuum induction furnace |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6160247A (en) * | 1984-08-30 | 1986-03-27 | Nippon Kokan Kk <Nkk> | Preheater for immersion nozzle for continuous casting |
| JPS61186156A (en) * | 1985-02-15 | 1986-08-19 | Nippon Steel Corp | Preheating method of tundish with molten metal passage hole |
| JPS62248545A (en) * | 1986-04-21 | 1987-10-29 | Nippon Kokan Kk <Nkk> | Heater for immersion nozzle |
| JPH04143047A (en) * | 1990-10-03 | 1992-05-18 | Sumitomo Metal Ind Ltd | Method for heating molten metal vessel |
| JPH04224058A (en) * | 1990-12-26 | 1992-08-13 | Nippon Steel Corp | Induction heating tundish |
| CN200974116Y (en) * | 2006-11-23 | 2007-11-14 | 鞍钢股份有限公司 | Continuous casting pouring basket immersion type mouth highly effective baking apparatus |
| CN101486089A (en) * | 2009-03-03 | 2009-07-22 | 河北文丰钢铁有限公司 | Series ladle baking device |
| CN102218525A (en) * | 2011-05-25 | 2011-10-19 | 浙江大学 | High-efficiency energy-saving baking device of continuous casting tundish |
| CN102909360A (en) * | 2012-10-30 | 2013-02-06 | 鞍钢股份有限公司 | Baking method and device of ladle |
| CN203396230U (en) * | 2013-06-18 | 2014-01-15 | 长兴三重窑炉科技有限公司 | Dual chamber furnace |
| CN203972843U (en) * | 2014-07-11 | 2014-12-03 | 鞍钢股份有限公司 | A kind of efficient baking of tundish device |
| CN104249148A (en) * | 2013-06-28 | 2014-12-31 | 宝山钢铁股份有限公司 | Channel type pouring basket and differential pressure type preheating method |
| CN204770627U (en) * | 2015-06-30 | 2015-11-18 | 辽宁科技大学 | Packing is put in middle of single current passageway formula induction heating bend pipe type passageway |
| CN106111965A (en) * | 2016-08-12 | 2016-11-16 | 马斌 | Towed ladle ferrum bag apparatus for baking |
| CN206273433U (en) * | 2016-10-31 | 2017-06-23 | 宝山钢铁股份有限公司 | One kind is injected into shape for product molten steel thermostat |
| JP2017177178A (en) * | 2016-03-30 | 2017-10-05 | 株式会社神戸製鋼所 | Tundish for continuous casting, and continuous casting method using the tundish |
-
2018
- 2018-07-05 CN CN201810727558.8A patent/CN108817365B/en not_active Expired - Fee Related
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6160247A (en) * | 1984-08-30 | 1986-03-27 | Nippon Kokan Kk <Nkk> | Preheater for immersion nozzle for continuous casting |
| JPS61186156A (en) * | 1985-02-15 | 1986-08-19 | Nippon Steel Corp | Preheating method of tundish with molten metal passage hole |
| JPS62248545A (en) * | 1986-04-21 | 1987-10-29 | Nippon Kokan Kk <Nkk> | Heater for immersion nozzle |
| JPH04143047A (en) * | 1990-10-03 | 1992-05-18 | Sumitomo Metal Ind Ltd | Method for heating molten metal vessel |
| JPH04224058A (en) * | 1990-12-26 | 1992-08-13 | Nippon Steel Corp | Induction heating tundish |
| CN200974116Y (en) * | 2006-11-23 | 2007-11-14 | 鞍钢股份有限公司 | Continuous casting pouring basket immersion type mouth highly effective baking apparatus |
| CN101486089A (en) * | 2009-03-03 | 2009-07-22 | 河北文丰钢铁有限公司 | Series ladle baking device |
| CN102218525A (en) * | 2011-05-25 | 2011-10-19 | 浙江大学 | High-efficiency energy-saving baking device of continuous casting tundish |
| CN102909360A (en) * | 2012-10-30 | 2013-02-06 | 鞍钢股份有限公司 | Baking method and device of ladle |
| CN203396230U (en) * | 2013-06-18 | 2014-01-15 | 长兴三重窑炉科技有限公司 | Dual chamber furnace |
| CN104249148A (en) * | 2013-06-28 | 2014-12-31 | 宝山钢铁股份有限公司 | Channel type pouring basket and differential pressure type preheating method |
| CN203972843U (en) * | 2014-07-11 | 2014-12-03 | 鞍钢股份有限公司 | A kind of efficient baking of tundish device |
| CN204770627U (en) * | 2015-06-30 | 2015-11-18 | 辽宁科技大学 | Packing is put in middle of single current passageway formula induction heating bend pipe type passageway |
| JP2017177178A (en) * | 2016-03-30 | 2017-10-05 | 株式会社神戸製鋼所 | Tundish for continuous casting, and continuous casting method using the tundish |
| CN106111965A (en) * | 2016-08-12 | 2016-11-16 | 马斌 | Towed ladle ferrum bag apparatus for baking |
| CN206273433U (en) * | 2016-10-31 | 2017-06-23 | 宝山钢铁股份有限公司 | One kind is injected into shape for product molten steel thermostat |
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