CN109099716B - Water-cooling furnace cover of ladle refining furnace and use method thereof - Google Patents
Water-cooling furnace cover of ladle refining furnace and use method thereof Download PDFInfo
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- CN109099716B CN109099716B CN201811018422.6A CN201811018422A CN109099716B CN 109099716 B CN109099716 B CN 109099716B CN 201811018422 A CN201811018422 A CN 201811018422A CN 109099716 B CN109099716 B CN 109099716B
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- furnace cover
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- 238000007670 refining Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000779 smoke Substances 0.000 claims abstract description 83
- 239000000428 dust Substances 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 7
- 239000003566 sealing material Substances 0.000 claims description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- 239000003517 fume Substances 0.000 claims description 5
- 206010022000 influenza Diseases 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a water-cooling furnace cover of a ladle refining furnace and a use method thereof, wherein the water-cooling furnace cover comprises a furnace cover body, a main suction flue and a dust removal pipeline, the lower end of the furnace cover body is opened and fixedly connected with a skirt flue, the upper end of the furnace cover body is opened and provided with a support ring, a refractory furnace ring is placed on the support ring, and a smoke cover is covered on the refractory furnace ring; a first side smoke suction channel and a second side smoke suction channel are arranged above the skirt edge flue, and the second side smoke suction channel is connected with the side wall of the smoke hood through a second flange connecting pipe; the main smoke exhaust duct is of a three-channel structure formed by welding heat-resistant steel, and comprises a channel I, a channel II and a channel III, wherein the channel I is connected with the smoke hood through a flange connecting pipe I, the channel II is connected with a side smoke exhaust duct I, and the channel III is in dynamic sealing connection with the dust removing pipeline through a flexible sealing piece. The water-cooling furnace cover has the advantages of good dust removal effect and small air consumption, ensures the micro-positive pressure requirement in the refining process, and can achieve the purposes of saving energy consumption and reducing electrode consumption.
Description
Technical Field
The invention belongs to the field of metallurgical equipment, and particularly relates to a water-cooled furnace cover of a ladle refining furnace and a use method thereof.
Background
Ladle refining furnaces (LF) are one of the main devices for refining molten steel, and a water-cooled furnace cover is a main component part of the ladle refining furnace, and the rationality of the structure of the ladle refining furnace directly influences the positive production of the refining furnace devices. In the refining process of the ladle refining furnace, particularly in the slag melting stage, a large amount of smoke is emitted to cause environmental pollution, and many enterprises build a large dust hood above the refining furnace by increasing the air extraction quantity, so that the large dust hood not only occupies a large area, but also affects the operation and maintenance.
In addition, the refining process requires that the furnace always maintains micro-positive pressure reducing atmosphere, so that the problems of nitrogen increase, oxygen increase and the like caused by invasion of external cold air can be prevented, a large amount of heat can be taken away, the temperature rising efficiency is reduced, and the electrode consumption is increased. In order to obtain micro-positive pressure, many enterprises modify the furnace cover, and even the furnace cover is not provided with a dust removing pipeline, but the micro-positive pressure control in the furnace cannot be realized due to the chimney effect in the furnace cover.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a water-cooled furnace cover of a ladle refining furnace and a use method thereof.
The invention aims to provide a water-cooling furnace cover structure which can realize the micro-positive pressure effect in a furnace and ensure the dust removal effect.
The invention also aims to reduce the air quantity for dust removal and achieve the purposes of energy conservation and consumption reduction.
For this purpose, the technical scheme adopted by the invention is as follows:
The water-cooling furnace cover of the ladle refining furnace at least comprises a furnace cover body, a main smoke-exhausting flue and a dust-removing pipeline, wherein the furnace cover body is of a water-cooling structure which is formed by a plurality of heat-resistant seamless steel pipes in a coiled mode, a skirt flue is fixedly connected with the lower end opening of the furnace cover body, a supporting ring is arranged at the upper end opening of the furnace cover body, a refractory furnace ring is arranged on the supporting ring, and a smoke cover is covered on the refractory furnace ring; a first side smoke suction channel and a second side smoke suction channel are arranged above the skirt edge flue, and the second side smoke suction channel is connected with the side wall of the smoke hood through a second flange connecting pipe; the main smoke exhaust duct is of a three-channel structure formed by welding heat-resistant steel, and comprises a first channel, a second channel and a third channel, wherein the first channel is connected with the smoke hood through a flange connecting pipe I, the second channel is connected with a side smoke exhaust duct I, and the third channel is in dynamic sealing connection with the dust removing pipeline through a flexible sealing piece.
The skirt flue is of a box-type water-cooling structure formed by welding heat-resistant steel plates, the lower end of the skirt flue is provided with an opening, and the size of the opening is matched with the diameter of the ladle.
The flexible sealing element comprises a grooved flange and a second flexible sealing material, the grooved flange is welded on the dust removing pipeline, and the second flexible sealing material is fixed on the grooved flange; and the channel III is inserted on the grooved flange and is sealed by a second flexible sealing material and a first flexible sealing material fixed on the channel III.
A flap valve I is arranged in the side smoke suction channel I; and a second flap valve is arranged in the second side smoke absorbing channel.
The side-suction flue II is provided with a plurality of side-suction flues, and the side-suction flues II are distributed along the circumference of the skirt-shaped flue.
The lower part of the fume hood is fixed on the supporting ring at the opening of the upper end of the furnace cover body, and the upper part of the fume hood is a heat-resistant steel plate with a hole in the middle.
And a flap valve III is arranged in the first channel of the main suction flue.
And the furnace cover body is also provided with a charging chute.
And the refractory furnace ring and the charging chute are respectively provided with an air seal structure.
The use method of the water-cooled furnace cover of the ladle refining furnace comprises the steps that the water-cooled furnace cover is covered on the furnace mouth of the ladle refining furnace, at the moment, a skirt flue of the water-cooled furnace cover of the ladle refining furnace just covers the furnace mouth of the ladle refining furnace in a downward sealing mode, and then most smoke enters a dust removing pipeline through the skirt flue and a side suction flue; the rest smoke enters the top smoke hood through the second side smoke absorbing channel, and is mixed with the smoke escaping from the electrode holes of the refractory furnace ring and cold air entering from the upper part of the top smoke hood to enter the dust removing pipeline, and is discharged outside through the dust removing pipeline.
The invention has the following advantages:
1. According to the water-cooled furnace cover, the skirt fume hood, the side suction flue and the flap valve are arranged, so that the airflow traveling direction in the furnace cover can be effectively changed, the chimney effect is broken, the micro-positive pressure state in the smelting process is realized, the cold air is reduced from entering the furnace, the oxygen and nitrogen content in molten steel is reduced, and meanwhile, the electricity consumption and the electrode consumption are reduced.
2. According to the invention, the smoke hood with the top open hole is designed at the upper part of the refractory furnace ring and is used for capturing the smoke escaping from the electrode holes of the refractory furnace ring, and the smoke enters the dust removing pipeline through the main extraction opening, so that the dust removing effect is achieved by using less air consumption.
3. According to the water-cooled furnace cover, the air seal structure is designed at the position of the furnace cover opening, so that the escape of smoke at the position of the opening is reduced.
Drawings
FIG. 1 is a front cross-sectional view of a water-cooled furnace cover according to the present invention;
FIG. 2 is a top plan view of the water-cooled furnace cover of the present invention;
fig. 3 is a schematic view of a flexible seal structure.
Reference numerals illustrate:
1. A furnace cover body; 2. a skirt flue; 3. a second side smoking path; 4. a flap valve II; 5. a smoke hood; 6. a refractory furnace ring; 7. a charging chute; 8. a flap valve III; 9. a main smoke-extracting flue; 9.1, channel one; 9.2, channel two; 9.3, channel three; 10. a flap valve I; 11. a first side smoking path; 12. a wire feeding hole; 13. a furnace door; 14. a furnace pressure monitoring hole; 15. a heat-resistant steel sheet; 16. a dust removal pipeline; 17. a first flange connecting pipe; 18. a flange connecting pipe II; 19. a flexible seal; 20. A grooved flange; 21. a first flexible sealing material; 22. a second flexible sealing material.
Detailed Description
Example 1
As shown in fig. 1, the water-cooling furnace cover of the ladle refining furnace at least comprises a furnace cover body 1, a main smoke exhaust channel 9 and a dust removal pipeline 16, wherein the furnace cover body 1 is of a water-cooling structure which is formed by a plurality of heat-resistant seamless steel pipes in a coiled mode, the lower end of the furnace cover body 1 is opened and fixedly connected with a skirt flue 2, the upper end of the furnace cover body 1 is opened and provided with a retainer ring, a refractory furnace ring 6 is placed on the retainer ring, and a smoke hood 5 is covered on the refractory furnace ring 6; a side smoke suction channel I11 and a side smoke suction channel II 3 are arranged above the skirt edge flue 2, and the side smoke suction channel II 3 is connected with the side wall of the smoke hood 5 through a flange connecting pipe II 17; the main smoke exhaust duct 9 is of a three-channel structure formed by welding heat-resistant steel, and comprises a first channel 9.1, a second channel 9.2 and a third channel 9.3, wherein the first channel 9.1 is connected with the smoke hood 5 through a flange connecting pipe 18, the second channel 9.2 is connected with a first side smoke exhaust duct 11, and the third channel 9.3 is dynamically and hermetically connected with the dust removing pipeline 16 through a flexible sealing piece.
According to the water-cooled furnace cover, the skirt flue, the smoke hood and the side suction flue are arranged, so that the airflow traveling direction in the furnace cover can be effectively changed, the chimney effect is broken, the micro-positive pressure state in the smelting process is realized, cold air is reduced to enter the furnace, the oxygen and nitrogen content in molten steel is reduced, and meanwhile, the power consumption and the electrode consumption are reduced.
Example 2
On the basis of the embodiment 1, the skirt flue 2 is of a box-type water-cooling structure formed by welding heat-resistant steel plates, the lower end of the skirt flue 2 is opened, and the opening size is adapted to the diameter of a ladle.
A flap valve I10 is arranged in the side suction flue I11, and a flap valve II 4 is arranged in the side suction flue II 3. And a third flap valve 8 is arranged in the first channel 9.1 of the main smoke exhaust channel 9. The flap valve can adjust the air extraction quantity and the smoke quantity of different flues.
The side-draft smoke channels II 3 are arranged in a plurality, the side-draft smoke channels II 3 are distributed along the circumference of the skirt-shaped smoke channel 2, and the number of the side-draft smoke channels II 3 is determined by the diameter of the furnace cover body 1.
The top smoke hood is connected with the side smoke suction channel II through the flange connecting pipe II 17, so that the design structure can realize that waste gas in the furnace enters the top smoke hood through the side smoke suction channel II, the mixing amount of cold air can be reduced, meanwhile, as the waste gas is reducing gas with heat, the oxidation loss of the charged oxygen to the electrode is reduced, in addition, the impact of cold air to the electrode is reduced, and the peeling loss of the electrode caused by thermal shock is reduced.
Example 3
On the basis of the embodiment, the smoke hood 5 is welded by heat-resistant steel, and the lower part of the smoke hood is connected with the backing ring of the furnace cover body 1; a heat-resistant steel plate 15 with a middle hole at the upper part, wherein the hole area of the heat-resistant steel plate 15 is determined according to the diameter of the electrode and the diameter of the polar circle; the side wall of the smoke hood 5 is provided with a flange connecting pipe I18 which is connected with a channel I9.1 of the main smoke exhaust channel 9; the side wall of the smoke hood 5 is also provided with a second flange connecting pipe 17 which is connected with a second side smoke absorbing channel 3.
The invention designs the smoke hood 5 with the top open hole at the upper part of the refractory furnace ring 6, which is mainly used for capturing the flue gas escaping from the electrode holes of the refractory furnace ring and entering the dust removing pipeline 16 through the main extraction opening, thus achieving the dust removing effect with less air consumption.
Example 4
On the basis of the above embodiment, as shown in fig. 2, the furnace cover body 1 is further provided with a furnace door 13, a charging chute 7, a wire feeding hole 12 and a furnace pressure monitoring hole 14, wherein the furnace door 13, the charging chute 7, the wire feeding hole 12 and the furnace pressure monitoring hole 14 are all in the prior art and are arranged according to the field condition, and the furnace door 13 is used for operation observation and manual sampling and temperature measurement; the charging chute 7 is used for adding alloy slag into the furnace; the wire feeding hole 12 is used for feeding wires into the furnace; the furnace pressure monitoring hole 14 is used for installing a pressure detecting element.
And the refractory furnace ring 6, the feeding chute 7 and the wire feeding hole 12 are all provided with air sealing structures for reducing the escape of flue gas at the opening. The air seal structure is in the prior art, and is not described herein.
As shown in fig. 3, the flexible sealing member 19 includes a grooved flange 20 and a second flexible sealing material 22, wherein the grooved flange 20 is welded on the dust removing pipe 16 to play a guiding role, and the second flexible sealing material 22 (such as fire-resistant cotton and the like) is fixed on the grooved flange 20; the channel three 9.3 is inserted onto the grooved flange 20 and sealed by a second flexible sealing material 22 and a first flexible sealing material 21 (such as fire resistant cotton, etc.) fixed to the channel three 9.3.
When the smoke-removing device is used, the air extraction quantity of different parts of the furnace cover is changed by adjusting the flap valve I10, the flap valve II 4 and the flap valve III 8, so that most smoke enters the dust-removing pipeline 16 through the skirt flue 2 and the side smoke-absorbing pipeline I11, and the chimney effect in the furnace is destroyed, so that the micro-positive pressure atmosphere in the furnace is ensured; part of flue gas enters the top smoke hood 5 through the side straw duct II 3, and the flue gas escaping from the electrode holes of the refractory furnace ring 6 and cold air entering from the upper part of the top smoke hood 5 are mixed and enter the dust removing pipeline 16, so that the aims of dust removal, energy saving and electrode consumption reduction are achieved.
Example 5
The using method of the water-cooled furnace cover of the ladle refining furnace comprises the following steps: the water-cooling furnace cover is covered on the furnace mouth of the ladle refining furnace, at the moment, the skirt flue 2 of the water-cooling furnace cover of the ladle refining furnace just seals the furnace mouth of the ladle refining furnace downwards, so that the sealing effect is enhanced, and then the flap valve I10, the flap valve II 4 and the flap valve III 8 are regulated to enable most of smoke to enter the dust removing pipeline 16 through the skirt flue 2, the side smoke suction channel I11, the channel II 9.2 and the channel III 9.3 of the main smoke suction channel 9 in sequence, so that the chimney effect in the furnace is destroyed, and the micro-positive pressure atmosphere in the furnace is ensured; part of flue gas enters the top smoke hood 5 through the side suction flue II 3, and is mixed with the flue gas escaping from the electrode holes of the refractory furnace ring 6 and cold air entering from the upper part of the top smoke hood 5, and enters the dust removing pipeline 16 through the first 9.1 and the third 9.3 channels of the main smoke exhausting channel 9, so that the aims of dust removal, energy saving and electrode consumption reduction are achieved.
In the smelting process, the air sources of the air seal structures arranged on the refractory furnace ring 6, the feeding chute 7 and the wire feeding hole 12 are opened to form an air curtain, so that the escape of furnace air smoke dust is prevented, and the aim of environmental protection is achieved.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use, and further modifications may be readily apparent to those skilled in the art, without departing from the general concepts defined by the claims and the equivalents thereof, and therefore the invention is not limited to the specific details and illustrations shown and described herein.
Claims (4)
1. The utility model provides a ladle refining stove water-cooled bell which characterized in that: the water-cooling furnace cover at least comprises a furnace cover body (1), a main smoke exhaust channel (9) and a dust removal pipeline (16), wherein the furnace cover body (1) is of a water-cooling structure formed by a plurality of heat-resistant seamless steel pipes in a coiled mode, a skirt flue (2) is fixedly connected with the lower end opening of the furnace cover body (1), a supporting ring is arranged at the upper end opening of the furnace cover body (1), a refractory furnace ring (6) is arranged on the supporting ring, and a smoke hood (5) is arranged on the upper cover of the refractory furnace ring (6); a side smoke suction channel I (11) and a side smoke suction channel II (3) are arranged above the skirt edge flue (2), and the side smoke suction channel II (3) is connected with the side wall of the smoke hood (5) through a flange connecting pipe II (17); the main smoke exhaust channel (9) is of a three-channel structure formed by welding heat-resistant steel, and comprises a channel I (9.1), a channel II (9.2) and a channel III (9.3), wherein the channel I (9.1) is connected with the smoke hood (5) through a flange connecting pipe I (18), the channel II (9.2) is connected with the side smoke exhaust channel I (11), and the channel III (9.3) is dynamically and hermetically connected with the dust removal pipeline (16) through a flexible sealing piece (19);
the skirt edge flue (2) is of a box-type water-cooling structure formed by welding heat-resistant steel plates, the lower end of the skirt edge flue (2) is provided with an opening, and the size of the opening is matched with the diameter of the ladle;
The flexible sealing element (19) comprises a grooved flange (20) and a second flexible sealing material (22), the grooved flange (20) is welded on the dust removing pipeline (16), and the second flexible sealing material (22) is fixed on the grooved flange (20); the channel III (9.3) is inserted on the grooved flange (20) and is sealed by a second flexible sealing material (22) and a first flexible sealing material (21) fixed on the channel III (9.3);
The side suction flues II (3) are arranged in a plurality, and the side suction flues II (3) are distributed along the circumference of the skirt flue (2);
The lower part of the fume hood (5) is fixed on a supporting ring at the opening of the upper end of the furnace cover body (1), and the upper part of the fume hood (5) is provided with a heat-resistant steel plate (15) with a hole in the middle;
a flap valve I (10) is arranged in the side smoke suction channel I (11); a flap valve II (4) is arranged in the side suction flue II (3); a flap valve III (8) is arranged in a first channel (9.1) of the main smoke exhausting channel (9).
2. A ladle refining furnace water cooled furnace cover as recited in claim 1, wherein: the furnace cover body (1) is also provided with a charging chute (7).
3. A ladle refining furnace water cooled furnace cover as recited in claim 2, wherein: and the refractory furnace ring (6) and the feeding chute (7) are respectively provided with an air seal structure.
4. A method for using a water-cooled furnace cover of a ladle refining furnace as claimed in any one of claims 1 to 3, wherein: covering the water-cooled furnace cover on the furnace mouth of the ladle refining furnace, wherein a skirt flue (2) of the water-cooled furnace cover of the ladle refining furnace just covers the furnace mouth of the ladle refining furnace in a downward sealing manner, and then enabling most of flue gas to enter a dust removing pipeline (16) through the skirt flue (2) and a side smoke suction channel I (11); the rest smoke enters the top smoke hood (5) through the side-suction flue II (3), and is mixed with the smoke escaping from the electrode holes of the refractory furnace ring (6) and the cold air entering from the upper part of the top smoke hood (5) to enter a dust removing pipeline (16), and is discharged outside through the dust removing pipeline (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018422.6A CN109099716B (en) | 2018-09-03 | 2018-09-03 | Water-cooling furnace cover of ladle refining furnace and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018422.6A CN109099716B (en) | 2018-09-03 | 2018-09-03 | Water-cooling furnace cover of ladle refining furnace and use method thereof |
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| Publication Number | Publication Date |
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| CN109099716A CN109099716A (en) | 2018-12-28 |
| CN109099716B true CN109099716B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN110388833B (en) * | 2019-08-23 | 2020-06-23 | 山东保蓝环保工程有限公司 | A gas cleaning takes off white processing system for steel refining furnace |
| CN111981860B (en) * | 2020-08-11 | 2022-07-01 | 中卫市茂烨冶金有限责任公司 | Submerged arc furnace capable of realizing smoke sealing and recycling |
| CN114322578A (en) * | 2020-09-29 | 2022-04-12 | 宝山钢铁股份有限公司 | LF stove dust removal entrapment system |
| CN113587658A (en) * | 2021-08-02 | 2021-11-02 | 江苏积力环保科技有限公司 | Submerged arc furnace |
| CN115341108B (en) * | 2022-08-12 | 2023-12-12 | 攀钢集团攀枝花钢铁研究院有限公司 | Maintenance method for slag layer of electric furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2114365C1 (en) * | 1997-08-14 | 1998-06-27 | Московский государственный вечерний металлургический институт | Water-cooled arch of "furnace-ladle" plant |
| JP2005105378A (en) * | 2003-09-30 | 2005-04-21 | Sanyo Special Steel Co Ltd | Ladle refining apparatus |
| CN205352081U (en) * | 2016-01-28 | 2016-06-29 | 鞍钢股份有限公司 | LF stove water cooled cover |
| CN205774653U (en) * | 2016-06-14 | 2016-12-07 | 江阴兴澄特种钢铁有限公司 | A kind of energy-saving bell of LF ladle refining furnace |
| CN208936789U (en) * | 2018-09-03 | 2019-06-04 | 中国重型机械研究院股份公司 | A kind of Water-cooling furnace cover of ladle refining furnace |
-
2018
- 2018-09-03 CN CN201811018422.6A patent/CN109099716B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2114365C1 (en) * | 1997-08-14 | 1998-06-27 | Московский государственный вечерний металлургический институт | Water-cooled arch of "furnace-ladle" plant |
| JP2005105378A (en) * | 2003-09-30 | 2005-04-21 | Sanyo Special Steel Co Ltd | Ladle refining apparatus |
| CN205352081U (en) * | 2016-01-28 | 2016-06-29 | 鞍钢股份有限公司 | LF stove water cooled cover |
| CN205774653U (en) * | 2016-06-14 | 2016-12-07 | 江阴兴澄特种钢铁有限公司 | A kind of energy-saving bell of LF ladle refining furnace |
| CN208936789U (en) * | 2018-09-03 | 2019-06-04 | 中国重型机械研究院股份公司 | A kind of Water-cooling furnace cover of ladle refining furnace |
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| Publication number | Publication date |
|---|---|
| CN109099716A (en) | 2018-12-28 |
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