CN102660661A - Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method - Google Patents
Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method Download PDFInfo
- Publication number
- CN102660661A CN102660661A CN2012101830392A CN201210183039A CN102660661A CN 102660661 A CN102660661 A CN 102660661A CN 2012101830392 A CN2012101830392 A CN 2012101830392A CN 201210183039 A CN201210183039 A CN 201210183039A CN 102660661 A CN102660661 A CN 102660661A
- Authority
- CN
- China
- Prior art keywords
- furnace
- steel
- station
- online
- argon blowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009628 steelmaking Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 27
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 186
- 229910052786 argon Inorganic materials 0.000 claims abstract description 93
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 238000007664 blowing Methods 0.000 claims abstract description 84
- 238000007670 refining Methods 0.000 claims abstract description 32
- 238000005070 sampling Methods 0.000 claims abstract description 30
- 238000011282 treatment Methods 0.000 claims abstract description 25
- 238000009529 body temperature measurement Methods 0.000 claims description 17
- 238000010079 rubber tapping Methods 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 8
- 238000009842 primary steelmaking Methods 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000009847 ladle furnace Methods 0.000 description 89
- 238000003723 Smelting Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010891 electric arc Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses an online multifunctional double-station LF (Low-Frequency) furnace system and an online LF furnace steelmaking method and aims to solve the problems that the conventional LF furnace can be used in a steel refining process only and has low utilization efficiency and slight resource waste, a large area is occupied as an area is required to be independently arranged for accommodating the LF furnace and the like. The online multifunctional double-station LF furnace system comprises an LF furnace which is transversely arranged on two parallel stations. The functions of the traditional argon flushing station are realized by equipment in the LF furnace; or the functions of CAS (Control Automatic System) are realized by the equipment in the LF furnace, and the LF furnace is used for refining molten steel in the process of making refined steel. The online LF furnace steelmaking method comprises the following steps of: performing treatments of blowing argon, measuring the temperature and sampling, feeding wires and the like on the molten steel subjected to primary steelmaking by directly using the online multifunctional double-station LF furnace system. The online multifunctional double-station LF furnace system and the online LF furnace steelmaking method have the characteristics of low investment, small occupied land, high efficiency and the like, and are particularly suitable for improvement of old plants and old equipment.
Description
Technical Field
The invention relates to an LF furnace system and an online LF furnace steelmaking method.
Background
A common steelmaking system is:
as shown in fig. 2, blast furnace → converter/electric furnace → argon blowing station/CAS → LF furnace → continuous caster.
And (3) argon blowing station: the argon blowing station is provided with a wire feeding machine, an argon blowing system and a temperature measuring and sampling system, and the main functions of the argon blowing station are temperature measuring, sampling, wire feeding and argon blowing.
CAS: composition adjustment by sealed ingot metallurgical off-furnace refining method is an off-furnace refining method for fine adjustment of alloy Composition under argon gas seal. The method comprises the steps of blowing argon from the bottom of a steel ladle, discharging slag, descending a dipping cover, continuously blowing argon, and then adding alloy to finely adjust components.
An LF Furnace (Ladle Furnace), i.e., a Ladle refining Furnace, was a refining facility developed and used first by japan capital iron and steel companies in the early 70 s. The company replaces the reduction refining period of the electric arc furnace with LF furnace smelting, thereby reducing the refining burden of the electric arc furnace and improving the productivity of the electric arc furnace.
The main tasks of the LF furnace are as follows: desulfurizing; temperature adjustment; fine adjustment of the components; improving the purity of the molten steel; and (4) slagging. The LF furnace has simple equipment, low investment cost, flexible operation and good refining effect, is widely applied and developed at home and abroad in recent years, and is the main external refining equipment in steelmaking production.
The LF stove arranges the form manifold, and conventional arrangement form has: single ladle car arrangement, transverse double ladle car arrangement, longitudinal double ladle car arrangement, ladle turret arrangement and the like. However, in any arrangement, the LF furnace is arranged at a special position of the production workshop and is off-line (namely, not on a tapping line of the steel-making furnace). The conventional arrangement of the LF furnace does not only occupy a certain area in a steelmaking workshop, but also has larger one-time investment. When steel grades such as Q215, Q235, Q255, 20 and the like are produced, a ladle refining furnace is not needed, the operation rate of the LF furnace is correspondingly reduced, and the flexibility is relatively insufficient.
Disclosure of Invention
Aiming at the problems, the invention provides the online multifunctional LF furnace system steelmaking system and the online LF furnace steelmaking method which integrate the molten steel refining functions of the argon blowing station and the LF furnace or CAS and LF furnaces, have the advantages of small investment, small occupied area and high production efficiency, and can be used for old technology and old factory building transformation.
In order to achieve the purpose, the online multifunctional double-station LF furnace system comprises an LF furnace, wherein the LF furnace comprises a rotating electrode capable of moving back and forth between a main treatment position and a secondary treatment position, at least 3 steel ladles for steelmaking, a crane for transferring the steel ladles, and an argon blowing device, a wire feeding machine and a temperature measuring and sampling device which are arranged on the two treatment positions and the secondary treatment position; the LF furnace is transversely arranged on two parallel stations, wherein the main processing station is arranged on a steel tapping line of a front-stage steel-making furnace; when refined steel grades are refined, 2 buggy ladles are arranged on the main processing position; and 1 steel ladle car is arranged on the secondary treatment position.
Preferably, the argon blowing device comprises a bottom argon blowing device and a top argon blowing device.
Preferably, when refined steel grades are refined by the LF furnace, one ladle car on the main processing position is specially used for receiving steel and tapping steel between the front-section steel making system and the main processing position, and the other ladle car is used for measuring temperature, sampling, feeding wires, blowing argon and refining molten steel.
In order to achieve the aim, the online LF furnace steelmaking method comprises the steps of carrying out temperature measurement sampling, wire feeding, argon blowing and alloy adding fine adjustment on primarily refined molten steel by the online multifunctional double-station LF furnace system.
The online multifunctional double-station LF furnace system and the online LF furnace steelmaking method have the beneficial effects that:
1. according to the on-line multifunctional double-station LF furnace system, the LF furnace is transversely arranged on two parallel stations, and one station is the steel tapping line of the front-end steel-making furnace, so that the situation that the traditional LF furnace is arranged in a special area of a workshop is changed, the distance from molten steel after primary steel making to the LF furnace is shortened when steel is refined, and the production period is shortened.
2. The on-line multifunctional double-station LF furnace system adopts the LF furnace with rotatable electrodes, is transversely arranged on two parallel stations, is convenient for the layout of the two treatment stations, and realizes the integration of double functions of an argon blowing station or CAS (CAS) during the process of refining common steel and the LF furnace during the process of refining refined steel.
3. According to the online multifunctional double-station LF furnace system, the argon blowing device comprises the bottom argon blowing device and the top argon blowing device, the bottom argon blowing device is adopted to complete an argon blowing process during normal production, and when the bottom argon blowing device breaks down, the top argon blowing device replaces the bottom argon blowing device to continue working, so that the production continuation is not influenced, and the production continuation is guaranteed.
4. The on-line multifunctional double-station LF furnace system improves the utilization rate of the LF furnace, and has small occupied area and low investment compared with a traditional steelmaking system which is sequentially arranged in an argon blowing station and the LF furnace or a CAS and the LF furnace.
5. According to the on-line multifunctional double-station LF furnace system, one main treatment station is arranged on the steel tapping line of the front steel-making furnace, and two buggy ladles are arranged at the main treatment station, so that the steel tapping and receiving of one buggy ladle are facilitated in the steel refining process of the LF furnace, one buggy ladle is special and refined, the realization is synchronous, and the steel-making turnover period is shortened.
6. According to the online LF furnace steelmaking method, the LF furnace is used for completing the function of the argon blowing station or CAS, the mechanical utilization rate of the LF furnace is improved, and the equipment investment cost is reduced.
7. The invention relates to an online LF (ladle furnace) steelmaking method, which uses an LF to realize the function of an argon blowing station or CAS (CAS). As the LF provided by the invention is provided with two wire feeders, two argon blowing devices and two feeding systems to form the two argon blowing stations or CAS, when any machine on one processing position has a problem, only the selection electrode 2 needs to be selected to the processing position, and normal operation can be carried out on the other processing position without wire breakage.
8. The online multifunctional double-station LF furnace system and the online LF furnace steelmaking method provide ideas for upgrading and reconstruction of a plurality of steel mills and reconstruction of old equipment of old factories and houses.
Drawings
Fig. 1 is a schematic plan structure view of an on-line multifunctional double-station LF furnace system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a conventional steelmaking system;
fig. 3 is a schematic structural diagram of an online multifunctional double-station LF furnace system in a steelmaking system according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 and 3, the on-line multifunctional double-station LF furnace system of the embodiment comprises an LF furnace, wherein the LF furnace comprises a rotating electrode 2 capable of reciprocating between a main processing position and a secondary processing position, a ladle for steel making, and a crane for transferring the ladle; the main processing position and the secondary processing position are respectively provided with an argon blowing device, a wire feeding machine and a temperature measuring and sampling device, the LF furnace is transversely arranged on two parallel stations, and the second main processing position is arranged on a steel tapping line of a front-section steel-making furnace; the main treatment position is provided with 2 buggy ladles, namely buggy ladles 9 and buggy ladles 10; the slave treatment position is provided with 1 buggy ladle which is buggy ladle 11
Wherein,
when the ordinary steel grade of smelting, the wire feeder on the main processing position is 61, blows the argon device and is 81 and temperature measurement sampling device and constitute jointly and blow the argon station, and the wire feeder on the follow processing position is 6, blows the argon device and is 8 and the temperature measurement sampling device that its position corresponds from blowing the argon station jointly. And the main argon blowing station and the secondary argon blowing station perform temperature measurement sampling, wire feeding and argon blowing on the primarily smelted molten steel.
When refined steel grades needing to be refined by the CAS are refined, the wire feeding machine on the main processing position is 61, the argon blowing device is 81 and the temperature measuring and sampling device are jointly assembled to form the main CAS, the wire feeding machine on the auxiliary processing position is 6, the argon blowing device is 8 and the temperature measuring and sampling device corresponding to the position of the wire feeding machine is jointly connected with the auxiliary CAS. The main CAS and the slave CAS carry out temperature measurement sampling, wire feeding, argon blowing and alloy adding fine adjustment on the primarily smelted molten steel;
when refined steel grades needing to be refined by the LF furnace are refined, 2 buggy ladles, namely buggy ladles 9 and buggy ladles 10, are arranged on the main treatment position; 1 buggy ladle is a buggy ladle 11 arranged on the secondary treatment position; the wire feeder on the main processing position is 61, the argon blowing device is 81, the wire feeder on the auxiliary processing position is 6, and the argon blowing device is 8; and the LF furnace puts the selective electrode into molten steel to synchronously complete temperature measurement sampling, wire feeding, argon blowing and refining.
The argon blowing device comprises a bottom argon blowing device and a top argon blowing device; the bottom argon blowing device blows argon into molten steel from the bottom of the ladle; the top argon blowing device blows argon into molten steel from the top of the ladle, and is a standby argon blowing device when the bottom argon blowing device breaks down.
The dotted line part in the figure is another processing bit where the rotating electrical machine 2 is located. 7 is the master control room of LF stove, 1 is feeding device, and 3 is loading attachment.
The argon blowing device comprises a bottom argon blowing device and a top argon blowing device 8; the bottom argon blowing device blows argon into molten steel from the bottom of the ladle; the top argon blowing device 8 blows argon from the top of the molten steel ladle, and is a standby argon blowing device of the bottom argon blowing device.
Wherein, when LF stove realizes blowing argon station function, can accomplish temperature measurement sample, feed silk, bottom blowing argon machine trouble, the work of top blowing argon. The charging system, the high-low voltage transformer, the hydraulic system and other equipment are not added, and any one of two parallel working stations of the LF furnace can be used as an argon blowing station.
When a steel grade is made by the CAS or when a refined steel grade is made by the CAS, a ladle car transfers molten steel between the front steel-making furnace and the LF furnace. Molten steel is loaded in a ladle, and the functions of temperature measurement sampling, wire feeding, temperature measurement sampling and the like are respectively completed on the molten steel by a temperature measurement sampling device, a wire feeding machine and an argon blowing device on a main treatment position or an auxiliary treatment position of the LF furnace.
When refined steel grade required to be refined by the LF furnace is refined, the ladle car 10 is driven to a molten steel outlet of the front-end refining furnace (usually belonging to a primary steel-making place), is filled with molten steel by the ladle car, and then is carried back to the position of the LF furnace, and the ladle filled with the molten steel is flushed to the ladle car 10 by a crane and transferred to any empty ladle car of the ladle cars 11 or 9.
The ladle car 11 or the ladle car 9 conveys the ladle filled with the molten steel to a treatment position of the LF furnace, the rotating motor 2 is inserted into the molten steel, and the argon blowing device, the wire feeding machine and the temperature measuring and sampling device at the corresponding positions respectively perform argon blowing, wire feeding, temperature measuring and sampling treatment on the molten steel, and the refining of the molten steel is synchronously completed.
After the ladle filled with molten steel on the ladle carriage 10 is transferred, the crane transfers an empty ladle to the ladle carriage 10, and then the ladle carriage 10 moves to a molten steel receiving bay to receive molten steel that has been subjected to primary refining (the molten steel receiving bay is provided between the primary refining plant and the refining plant). Ladle car 10 is dedicated to receiving and tapping steel.
Example two:
the online LF furnace steelmaking method is characterized in that the online multifunctional double-station LF furnace system is used for temperature measurement sampling, wire feeding and argon blowing of primarily smelted molten steel.
In the embodiment, the online multifunctional double-station LF furnace system is utilized to realize the functions of temperature measurement sampling, wire feeding and argon blowing of the primarily refined molten steel realized by the argon blowing station during the smelting of common steel grades.
Example three:
the online LF furnace steelmaking method comprises the steps of carrying out temperature measurement sampling, wire feeding, argon blowing and alloy adding fine adjustment on primarily refined molten steel by the online multifunctional double-station LF furnace system.
The LF furnace provided by the invention is provided with two wire feeders, two argon blowing devices and two feeding systems to form two argon blowing stations, so that when any machine on one processing position has a problem, only the selection electrode 2 needs to be selected to the processing position, and normal operation can be carried out on the other processing position without breaking the wire.
The steel-making system of the embodiment adopts the LF furnace, makes full use of the LF furnace, omits an independent argon blowing station, reduces the overall investment, has more flexible workshop layout and small occupied area, is suitable for newly-built workshops, and is also suitable for the transformation of old workshops and old facilities. One production line can be used for producing common steel and can also be used for producing high-standard refined steel.
Example four: refining of ordinary steel grades
As shown in fig. 1 and 3, the on-line multifunctional double-station LF furnace system of the embodiment comprises an LF furnace, wherein the LF furnace comprises a rotating electrode 2 capable of reciprocating between two processing stations, a ladle for steel making, and a crane for transferring the ladle; the two processing positions are respectively provided with an argon blowing device, a wire feeding machine and a temperature measuring and sampling device, the LF furnace is transversely arranged on the two parallel stations, one of the processing positions is arranged on a steel tapping line of a front-section steel-making system and is a main processing position; another of the processing bits is a slave processing bit; wherein,
when common steel grades are smelted, the processing position, the argon blowing device, the wire feeding machine and the temperature measuring and sampling device at the position of the processing position jointly form an argon blowing station for smelting the common steel grades; and carrying out temperature measurement sampling, wire feeding and argon blowing on the molten steel.
In the specific implementation process, the matching problem of the smelting period of the steel furnace and the continuous casting pouring time needs to be considered, and no other technical or production organization problem exists for pouring common steel grades or refining steel grades by CAS.
The method is simple and convenient to implement, and the generation problem caused by the fact that the LF furnace replaces the traditional argon blowing station to work is avoided.
Example five: when refining refined steel grade by LF furnace
As shown in fig. 1, the on-line multifunctional double-station LF furnace system of the embodiment comprises an LF furnace, the LF furnace comprises a rotating electrode 2 capable of reciprocating between two processing stations, a ladle for steel making, and a crane for transferring the ladle; the two processing positions are respectively provided with an argon blowing device, a wire feeding machine and a temperature measuring and sampling device, the LF furnace is transversely arranged on two parallel stations, one of the processing positions is arranged on a steel tapping line of a front-section steel-making furnace and is a main processing position; another of the processing bits is a slave processing bit; wherein,
2 buggy ladles, namely buggy ladles 9 and buggy ladles 10, are arranged on the main treatment position; 1 buggy ladle is a buggy ladle 11 arranged on the secondary treatment position; the wire feeder on the main processing position is 61, the argon blowing device is 81, the wire feeder on the auxiliary processing position is 6, and the argon blowing device is 8; and the LF furnace synchronously performs temperature measurement sampling, wire feeding, argon blowing and refining on the molten steel.
In the specific implementation process, the matching of the smelting period of the primary steelmaking furnace and the refining period of the double-station LF furnace is considered during steel refining. Taking a 100t converter and a double-station LF furnace as examples for analysis:
table 1 shows a detailed list of the primary steel smelting period;
table 2 shows a detailed list of the refining period of LF furnace;
list of initial steel-smelting period
TABLE 1
Refining steel smelting period list of LF furnace
TABLE 2
As can be seen from the comparison of Table 1 and Table 2, the smelting period of the primary steel is matched with that of the LF furnace.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (4)
1. An online multifunctional double-station LF furnace system comprises an LF furnace, wherein the LF furnace comprises a rotary electrode capable of moving back and forth between a main treatment position and a secondary treatment position, at least 3 steel ladles for steel making, a crane for transferring the steel ladles, and an argon blowing device, a wire feeding machine and a temperature measuring and sampling device which are arranged on the main treatment position and the secondary treatment position; the LF furnace is transversely arranged on two parallel stations, wherein the main processing station is arranged on a steel tapping line of a front-section steel-making furnace; 2 buggy ladles are arranged on the main treatment position; and 1 steel ladle car is arranged on the secondary treatment position.
2. The on-line multifunctional double-station LF furnace system according to claim 1, wherein the argon blowing device comprises a bottom argon blowing device and a top argon blowing device.
3. The on-line multifunctional double-station LF furnace system of claim 1, wherein when refining steel grades by the LF furnace, the buggy ladle on the main processing station is dedicated to receiving and discharging steel between the front steel-making furnace and the main processing station, and the buggy ladle on the main processing station is dedicated to temperature measurement sampling, wire feeding, argon blowing and refining of molten steel.
4. An online LF furnace steelmaking method is characterized in that the online multifunctional double-station LF furnace system in claim 1 is used for carrying out temperature measurement sampling, wire feeding, argon blowing and alloy addition fine adjustment on primarily refined molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101830392A CN102660661A (en) | 2012-06-05 | 2012-06-05 | Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101830392A CN102660661A (en) | 2012-06-05 | 2012-06-05 | Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102660661A true CN102660661A (en) | 2012-09-12 |
Family
ID=46770236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101830392A Pending CN102660661A (en) | 2012-06-05 | 2012-06-05 | Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102660661A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484598A (en) * | 2013-09-05 | 2014-01-01 | 通裕重工股份有限公司 | Two-ladle alternating smelting process used for ladle refining |
| CN105112600A (en) * | 2015-08-31 | 2015-12-02 | 北京首钢国际工程技术有限公司 | Molten iron concentrated vanadium extraction system and using method thereof |
| CN110117691A (en) * | 2019-05-07 | 2019-08-13 | 中冶华天南京工程技术有限公司 | Dual chamber integral-type electric refining furnaces system and method for making steel |
| CN110257587A (en) * | 2019-04-22 | 2019-09-20 | 中冶南方工程技术有限公司 | Double-station LF refining furnace system that is a kind of online and combining offline |
| CN114381573A (en) * | 2021-12-28 | 2022-04-22 | 北京首钢自动化信息技术有限公司 | Control method, device, equipment and medium for electrode in ladle refining furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201284350Y (en) * | 2008-11-11 | 2009-08-05 | 上海宝钢工程技术有限公司 | Double-station ladle furnace front wheel drive type electrode rotating elevating gear |
| CN201292379Y (en) * | 2008-11-25 | 2009-08-19 | 长春电炉成套设备有限责任公司 | Four-upright post double-station transverse arm rotary refined-smelting ladle furnace |
| CN101592964A (en) * | 2009-06-26 | 2009-12-02 | 北京首钢自动化信息技术有限公司 | A kind of system for controlling forecast of molten steel temperature of double-station LF furnace |
| CN201997701U (en) * | 2011-03-14 | 2011-10-05 | 储鸿文 | Ladle double working position transferring device |
| CN202116585U (en) * | 2011-06-22 | 2012-01-18 | 西安电炉研究所有限公司 | Electrode rotating mechanism for double-station electrode rotating type LF (Ladle Furnace) refining furnace |
-
2012
- 2012-06-05 CN CN2012101830392A patent/CN102660661A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201284350Y (en) * | 2008-11-11 | 2009-08-05 | 上海宝钢工程技术有限公司 | Double-station ladle furnace front wheel drive type electrode rotating elevating gear |
| CN201292379Y (en) * | 2008-11-25 | 2009-08-19 | 长春电炉成套设备有限责任公司 | Four-upright post double-station transverse arm rotary refined-smelting ladle furnace |
| CN101592964A (en) * | 2009-06-26 | 2009-12-02 | 北京首钢自动化信息技术有限公司 | A kind of system for controlling forecast of molten steel temperature of double-station LF furnace |
| CN201997701U (en) * | 2011-03-14 | 2011-10-05 | 储鸿文 | Ladle double working position transferring device |
| CN202116585U (en) * | 2011-06-22 | 2012-01-18 | 西安电炉研究所有限公司 | Electrode rotating mechanism for double-station electrode rotating type LF (Ladle Furnace) refining furnace |
Non-Patent Citations (1)
| Title |
|---|
| 刘鹏: "双车、双处理工位电极旋转的120tLF炉的设计", 《第七届全国工业炉学术年会论文集》, 31 December 2006 (2006-12-31), pages 201 - 205 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484598A (en) * | 2013-09-05 | 2014-01-01 | 通裕重工股份有限公司 | Two-ladle alternating smelting process used for ladle refining |
| CN105112600A (en) * | 2015-08-31 | 2015-12-02 | 北京首钢国际工程技术有限公司 | Molten iron concentrated vanadium extraction system and using method thereof |
| CN110257587A (en) * | 2019-04-22 | 2019-09-20 | 中冶南方工程技术有限公司 | Double-station LF refining furnace system that is a kind of online and combining offline |
| CN110117691A (en) * | 2019-05-07 | 2019-08-13 | 中冶华天南京工程技术有限公司 | Dual chamber integral-type electric refining furnaces system and method for making steel |
| CN114381573A (en) * | 2021-12-28 | 2022-04-22 | 北京首钢自动化信息技术有限公司 | Control method, device, equipment and medium for electrode in ladle refining furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102660661A (en) | Online multifunctional double-station LF (Low-Frequency) furnace system and online LF furnace steelmaking method | |
| CN102162019B (en) | Multistage combined pretreatment method for vanadium-bearing molten iron | |
| US9464845B2 (en) | Combined furnace system for fire refining red impure copper | |
| CN102943145B (en) | Converter smelting method of ultra-low phosphorus steel | |
| CN202626233U (en) | LF refining device with powder injection function | |
| CN111349743B (en) | Energy-saving and emission-reducing method for recycling thermal-state casting residues | |
| CN109943685A (en) | A kind of external refining production method of hypoxemia low titanium high-carbon-chromium bearing steel | |
| CN102851447B (en) | Outside-furnace refining production method of steel used in carbon steel welding wire | |
| CN109628697B (en) | High-carbon dephosphorization method for smelting medium-high carbon steel grade in converter | |
| CN105483323A (en) | Manufacturing method of 12Cr13 pipe blank for nuclear power plant reactor control rod drive mechanism | |
| CN103352101A (en) | Low-cost smelting process for converter | |
| CN102912081A (en) | Method for improving cleanliness of steel by treating molten steel with external electric field | |
| CN109402327A (en) | A kind of external refining production method of super clean high-carbon-chromium bearing steel | |
| CN202770174U (en) | Submerged arc furnace | |
| CN201901685U (en) | Ladle refining furnace with double-ladle cart and single station | |
| CN103014230A (en) | Method for producing low-phosphorus high-carbon steel by duplex hot-adding slag washing for electric furnace | |
| CN103614609B (en) | A kind of stainless steel smelting desiliconization of hot metal method | |
| CN102559984A (en) | Method for producing high carbon steel through double-slag high drawing carbon tapping | |
| CN102912083A (en) | Melted iron desulfuration and slag skimming product line system | |
| CN103498054A (en) | Electric furnace for accommodating and carbonizing hot blast furnace slag and equipment technology thereof | |
| CN103468856A (en) | Method for steel molybdenum alloying | |
| CN103993132B (en) | The method of LF stove smelting low-nitrogen steel | |
| CN107779550B (en) | The method of molten steel manganeisen additional amount is reduced in a kind of refining process | |
| CN102559986B (en) | Method for single-stage vanadium extraction in same converter | |
| CN110257587A (en) | Double-station LF refining furnace system that is a kind of online and combining offline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120912 |