CN109457078B - Front door of converter - Google Patents
Front door of converter Download PDFInfo
- Publication number
- CN109457078B CN109457078B CN201811546352.1A CN201811546352A CN109457078B CN 109457078 B CN109457078 B CN 109457078B CN 201811546352 A CN201811546352 A CN 201811546352A CN 109457078 B CN109457078 B CN 109457078B
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- Prior art keywords
- door
- push rod
- converter
- door body
- section
- Prior art date
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- 238000005070 sampling Methods 0.000 claims description 11
- 229910001018 Cast iron Inorganic materials 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 10
- 238000009529 body temperature measurement Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to a converter front door, which is arranged close to an outer side plate of a converter fixed smoke cover and comprises a left door body and a right door body, wherein at least one door body is provided with an observation door assembly, and the observation door assembly comprises an observation door and an electrohydraulic push rod for opening and closing the observation door; the electrohydraulic push rod is a split electrohydraulic push rod, a shell of the split electrohydraulic push rod is hinged on the door body, and the telescopic push rod is hinged with a door plate of the observation door. Compared with the mode of adopting an electric trolley to drive the observation door to open and close, the converter front door provided by the invention can effectively lighten the weight of equipment; the split type electrohydraulic push rod is adopted to open and close the observation door, so that the installation space can be saved, and more space can be reserved for the traveling of the top crane especially for the structure that the observation door is opened up and down, thereby reducing the design of plant elevation.
Description
Technical Field
The invention belongs to the technical field of steelmaking, and particularly relates to a converter front door.
Background
The front door of the converter is one of the main equipment of the oxygen top-blown converter steelmaking workshop. During oxygen blowing steelmaking, the converter is required to be subjected to airtight noise reduction, heat insulation and dust removal because flue gas, slag splashing liquid and heat emission, raw materials are required to be added into the converter from the charging side (commonly called front of the converter) of the converter, smelted molten steel is required to be poured out from the tapping side (commonly called rear of the converter) of the converter, and operations such as temperature measurement, sampling, observation of smelting conditions in the converter and the like are required.
The front door of the converter comprises two door bodies which run in opposite directions. Each door body is provided with a driving system which is independent, an upper running rail and a lower running rail are laid in front of the furnace, the lower running rail is a supporting rail of a front door wheel of the furnace and bears the weight of the main door body, and the upper running rail is a horizontal wheel for guiding and bearing the eccentric moment of the door surface. According to the requirement of the process operation, a small temperature measuring sampling door, an observation door and the like are also arranged on the door body.
At present, a door body of a front door of a converter is generally made of cast iron plates, and the thickness of the door body is generally about 30mm, so that the door body is enough to resist a high-temperature environment and has enough service life (1-2 years); the observation door is generally opened and closed by arranging a track on a door body and an electric trolley walking on the track. Both of these factors result in a conventional foredoor that is heavy.
Due to the refined investment, the weight of the furnace front door is reduced.
Disclosure of Invention
The embodiment of the invention relates to a converter front door which at least can solve part of defects in the prior art.
The embodiment of the invention relates to a converter front door, which is arranged close to an outer side plate of a converter fixed smoke cover and comprises a left door body and a right door body, wherein an observation door assembly is arranged on at least one door body, and comprises an observation door and an electrohydraulic push rod for opening and closing the observation door; the electro-hydraulic push rod is a split electro-hydraulic push rod, a shell of the split electro-hydraulic push rod is hinged to the door body, and the telescopic push rod is hinged to the door plate of the observation door.
As one of the embodiments, the hinge shaft between the door plate and the door opening of the observation door is in a horizontal direction in the axial direction, and the electro-hydraulic push rod is arranged above the observation door.
As one of the embodiments, the electrohydraulic push rod comprises a motor, a coupling, an oil pump, an integrated valve block and a hydraulic cylinder, wherein the motor is connected with the oil pump through the coupling, one end of the integrated valve block is connected with the oil pump, the other end of the integrated valve block is connected with an oil port of the hydraulic cylinder through a metal hose, and a conical surface seal is formed between a pipe joint of the metal hose and the oil port.
As one of the embodiments, two the door body all include lower part keep off the fire section and connect in lower part keep off fire section top and be hollow out section in the top of hollow out construction, the bottom of top hollow out section is not less than the bottom of outer panel, electrohydraulic push rod install in on the lower part keeps off the fire section.
As one of the embodiments, the bottom end of the top hollow section is flush with the bottom end of the outer side plate, and a sealing structure capable of forming labyrinth seal with the outer side plate is arranged at the inner side of the door body, and the sealing structure is arranged on the hollow section or at the top of the lower fire-blocking section.
As one of the embodiments, the top hollow section includes two left and right main beams and at least one cross diagonal brace fixed between the two main beams.
As one of the embodiments, the lower fire shield includes an inner heat shield and an outer cast iron plate having a thickness of 24 to 26mm.
As one of the embodiments, the converter front door further comprises a walking track, two door bodies are both arranged on the walking track in a sliding mode, each door body is connected with a driving motor for driving the door bodies to slide, and the two driving motors are reserved.
As one of the embodiments, the power of the driving motor is 4 to 5KW.
As one embodiment, at least one of the door bodies is provided with a temperature measuring sampling door hole.
The embodiment of the invention has at least the following beneficial effects:
Compared with the mode of adopting an electric trolley to drive the observation door to open and close, the converter front door provided by the invention can effectively lighten the weight of equipment; the split type electrohydraulic push rod is adopted to open and close the observation door, so that the installation space can be saved, and more space can be reserved for the traveling of the top crane especially for the structure that the observation door is opened up and down, thereby reducing the design of plant elevation.
The embodiment of the invention further has the following beneficial effects:
the hollow design is carried out on the door body area overlapped with the fixed fume hood, so that the conventional cast iron plate is replaced, the heat radiation of the converter can be avoided by depending on the fixed fume hood, the weight of the front door of the converter can be effectively reduced by the hollow design, and the light weight design of the front door of the converter is realized; particularly, under the condition of adopting the split type electrohydraulic push rod, the split type electrohydraulic push rod is based on the advantage of saving installation space, and the electrohydraulic push rod can be prevented from being exposed in the converter heat radiation environment while the weight of a front door is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic front view of a front door of a converter according to an embodiment of the present invention;
fig. 2 is a schematic side view of a converter front door according to an embodiment of the present invention;
fig. 3 is an enlarged schematic view of the portion N in fig. 2.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the embodiment of the present invention provides a converter front door, which is disposed near an outer side plate 21 of a converter fixed hood 2, and comprises a left door body 1 and a right door body 1, wherein at least one door body 1 is provided with an observation door assembly, and in general, both door bodies 1 are provided with observation door assemblies; the outer side plate 21 of the fixed hood 2 is a side plate body far away from the center line of the converter. The observation door assembly comprises an observation door and an electrohydraulic push rod 122 for opening and closing the observation door, and as can be understood, the observation door comprises a door opening arranged on a door body 1 and a door plate 121 hinged on the door body 1, the door plate 121 is connected with the electrohydraulic push rod 122, and the electrohydraulic push rod 122 drives the door plate 121 to act so as to open and close the door opening, so that the opening and the closing of the observation door are realized. Further preferably, as shown in fig. 2, the electro-hydraulic push rod 122 is a split electro-hydraulic push rod 122, a housing of which is hinged to the door body 1, and a telescopic push rod is hinged to a door plate 121 of the observation door.
The split electro-hydraulic push rod 122 is a conventional device, commercially available, and its specific structure is readily known to those skilled in the art. Generally, the electro-hydraulic push rod 122 comprises a motor, a coupling, an oil pump, an integrated valve block and a hydraulic cylinder, wherein the motor is connected with the oil pump through the coupling, one end of the integrated valve block is connected with the oil pump, and the other end of the integrated valve block is connected with an oil port of the hydraulic cylinder through a metal hose. In this embodiment, preferably, a conical surface seal is formed between the pipe joint of the metal hose and the oil port, so as to avoid leakage of hydraulic oil, and improve the working reliability and service life of the electro-hydraulic push rod 122.
The door panel 121 may be rotated about a horizontal axis or a vertical axis, and in another embodiment, the door panel 121 may be movably pushed and pulled, i.e. a movable track is correspondingly disposed on the door body 1. In this embodiment, as shown in fig. 2, the hinge axis between the door plate 121 and the door opening of the observation door is in a horizontal direction, the electro-hydraulic push rod 122 is installed above the observation door, and the door plate 121 is preferably hinged to the top of the door opening; this structure facilitates the arrangement of the electro-hydraulic push rod 122, and makes full use of the idle space at the upper part of the door body 1.
The converter front door provided by the embodiment adopts the electrohydraulic push rod 122 to drive the observation door to open and close, and compared with a mode of adopting an electric trolley to drive the observation door to open and close, the converter front door can effectively lighten the weight of equipment; the split type electrohydraulic push rod 122 is adopted to open and close the observation door, so that the installation space can be saved, and more space can be reserved for the traveling of the top crane especially for the structure that the observation door is opened up and down, and the factory building elevation design can be reduced.
Further optimize the structure of above-mentioned converter stokehold door, as in fig. 1 and 2, two the door body 1 all include lower part fire shield section 12 and connect in lower part fire shield section 12 top just is hollow out section 11 at hollow out construction, the bottom of top hollow out section 11 is not less than the bottom of outer panel 21, electrohydraulic push rod 122 install in on the lower part fire shield section 12. That is, the hollow design is carried out in the region of the door body 1 overlapped with the fixed fume hood 2 to replace the conventional cast iron plate, the heat radiation of the converter can be avoided by depending on the fixed fume hood 2, and the weight of the front door of the converter can be effectively reduced by the hollow design, so that the light weight design of the front door of the converter is realized; particularly, in the case of adopting the split type electrohydraulic push rod 122, the electrohydraulic push rod 122 can be prevented from being exposed in the converter heat radiation environment while the weight of a stokehole door is reduced based on the advantage of saving the installation space of the split type electrohydraulic push rod 122.
Easily understand, in order to lighten the door body 1 as far as possible, the greater the height of the top hollow section 11 is, the better the bottom of the top hollow section 11 is with the bottom of the outer side plate 21 is, but this also leads to the failure of the overlapping seal between the original door body 1 and the fixed hood 2, in order to avoid the escape of the flue gas from the top hollow section 11, as shown in fig. 2, a sealing structure 3 capable of forming a labyrinth seal with the outer side plate 21 is provided on the inner side of the door body 1, and the sealing structure 3 is provided on the hollow section 11 or on the top of the lower fire-blocking section 12. The sealing structure 3 can be an L-shaped plate, and comprises a horizontal plate section and a vertical plate section, wherein the horizontal plate section is arranged on the door body 1, the vertical plate section is arranged at one end of the horizontal plate section, which is close to the converter, and extends upwards to an outer side plate 21, which is close to the fixed smoke hood 2, and the gap between the two plates is as small as possible without mutual interference, so that the speed of flue gas drift can be slowed down.
In order to ensure the structural strength and weather resistance of the door body 1, the hollow design preferably adopts a cross diagonal bracing structure, namely, the top hollow section 11 comprises a left main beam, a right main beam and at least one cross diagonal bracing fixed between the two main beams. In this embodiment, the bottom of the cross bracing structure is approximately flush with the bottom of the outer plate 21 of the stationary hood 2, which reduces the weight of the stokehold door by about 6t.
Further preferably, in this embodiment, as shown in fig. 2, the lower fire-blocking section 12 includes an inner heat-insulating plate and an outer cast iron plate, and the top hollow section 11 eliminates the inner heat-insulating plate, so as to further reduce the weight of the front door body 1. In addition, the thickness of the cast iron plate of the lower fire-blocking section 12 is reduced to 24-26 mm, preferably 25mm, so that the weight of the front door body 1 can be further reduced (about 3t reduction), and the cast iron plate can maintain the service life for more than one year.
Further preferably, as shown in fig. 1, at least one of the door bodies 1 is provided with a temperature measuring sampling door hole 123. In this embodiment, the structure of this temperature measurement sampling door hole 123 includes little door, goes up the door holder, lower door holder and door handle, and this temperature measurement sampling door opens when the workman needs the manual temperature measurement sample in stokehold, and the workman inserts the converter with the temperature measurement sampling rifle, and the temperature measurement sampling rifle is taken out again, closes the temperature measurement sampling door hole. The converter molten steel temperature measurement sampling plays an important role in oxygen lance blowing and improving molten steel quality.
Continuing the structure of the converter front door, as shown in fig. 1, the converter front door further comprises a walking track, two door bodies 1 are all arranged on the walking track in a sliding mode, each door body 1 is connected with a driving motor for driving the door bodies to slide, and the two driving motors are reserved for each other. In the existing furnace front door design, each door body 1 is driven by two motors, and one door body is used for one; in the embodiment, the existing design scheme of the dual-purpose dual-standby motor is changed into dual-motor drive which is mutually standby, so that the weight of the front door of the furnace can be further reduced (about 0.5t is reduced). The power of the driving motor is designed to be 4-5 KW, so that the driving requirement of the door body 1 can be met.
The using method of the two driving motors for mutual standby comprises the following steps:
Taking the case that the left driving motor is broken, the right driving motor pushes the two door bodies 1 to move to the left standby position together, and then the right door body is returned to the right standby position; when the right driving motor is damaged, the corresponding treatment is carried out.
But when a side door body 1 is opened to the other side, the door body 1 collides with a middle stop block 4 (only the side stop block 4 is shown in the figure, the middle stop block 4 is not marked, the middle stop block 4 and the side stop block 4 are used for limiting the left and right strokes of the door body 1, and the stroke switch on the door body 1 is matched to ensure the accurate positioning of the door body 1), and the following solution is achieved: the middle stop block 4 can be arranged as a lifting stop block 4; or the middle stop block 4 can be cut off, the motor at the other side is used for pushing the two doors to the standby position, and when the damaged motor is replaced, the middle stop block 4 is welded again.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a converter stokehold door, is close to the fixed petticoat pipe's of converter outer panel setting, includes two left and right sides door body, at least one be equipped with on the door body and observe the door assembly, its characterized in that: the observation door assembly comprises an observation door and an electrohydraulic push rod for opening and closing the observation door; the electrohydraulic push rod is a split electrohydraulic push rod, a shell of the split electrohydraulic push rod is hinged to the door body, and the telescopic push rod is hinged to a door plate of the observation door;
The hinge shaft between the door plate and the door opening of the observation door is in a horizontal direction in the axial direction, and the electro-hydraulic push rod is arranged above the observation door;
The two door bodies comprise a lower fire-blocking section and a top hollow section which is connected to the top end of the lower fire-blocking section and is in a hollow structure, the bottom end of the top hollow section is not lower than the bottom end of the outer side plate, and the electro-hydraulic push rod is arranged on the lower fire-blocking section;
The bottom end of the top hollowed-out section is flush with the bottom end of the outer side plate, a sealing structure capable of forming labyrinth seal with the outer side plate is arranged on the inner side of the door body, and the sealing structure is arranged on the hollowed-out section or at the top of the lower fire-blocking section;
The sealing structure is an L-shaped plate and comprises a horizontal plate section and a vertical plate section, the horizontal plate section is arranged on the door body, and the vertical plate section is arranged at one end of the horizontal plate section, which is close to the converter, and extends upwards to be close to the outer side plate;
The door body is connected with a driving motor for driving the door body to slide, the driving motor is mutually standby, and the method for mutually standby is as follows:
When the left driving motor fails, the right driving motor pushes the two door bodies to move to the left standby position together, and then the right door body is returned to the right standby position; when the right driving motor fails, the left driving motor pushes the two door bodies to move to the right standby position together, and then the left door body is returned to the left standby position; the middle stop block is a stop block capable of ascending and descending, and when the door body on one side is opened to the other side, the middle stop block descends.
2. The converter front door according to claim 1, wherein: the electrohydraulic push rod comprises a motor, a coupler, an oil pump, an integrated valve block and a hydraulic cylinder, wherein the motor is connected with the oil pump through the coupler, one end of the integrated valve block is connected with the oil pump, the other end of the integrated valve block is connected with an oil port of the hydraulic cylinder through a metal hose, and a pipe joint of the metal hose and the oil port form conical surface sealing.
3. The converter front door according to claim 1, wherein: the top hollowed-out section comprises a left main beam and a right main beam and at least one cross diagonal brace fixed between the two main beams.
4. The converter front door according to claim 1, wherein: the lower fire-blocking section comprises an inner side heat-insulating plate and an outer side cast iron plate, and the thickness of the cast iron plate is 24-26 mm.
5. The converter front door according to claim 1, wherein: the power of the driving motor is 4-5 KW.
6. The converter front door according to claim 1, wherein: at least one of the door bodies is provided with a temperature measuring sampling door hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546352.1A CN109457078B (en) | 2018-12-18 | 2018-12-18 | Front door of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546352.1A CN109457078B (en) | 2018-12-18 | 2018-12-18 | Front door of converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109457078A CN109457078A (en) | 2019-03-12 |
| CN109457078B true CN109457078B (en) | 2024-04-16 |
Family
ID=65613597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811546352.1A Active CN109457078B (en) | 2018-12-18 | 2018-12-18 | Front door of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109457078B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201386113Y (en) * | 2009-02-10 | 2010-01-20 | 中冶赛迪工程技术股份有限公司 | Cantilever type smoke baffle wall |
| CN201990695U (en) * | 2011-01-18 | 2011-09-28 | 中冶京诚工程技术有限公司 | Door body structure for fire baffle door in front of furnace and fire baffle door in front of furnace |
| CN203440394U (en) * | 2013-08-23 | 2014-02-19 | 中冶华天南京工程技术有限公司 | Electric fire door device of master control chamber of converter |
| CN203497670U (en) * | 2013-09-11 | 2014-03-26 | 安徽省青阳县九华矿山机械制造有限公司 | Discontinuous unloading device used for bulk material |
| CN104745763A (en) * | 2015-04-01 | 2015-07-01 | 中冶南方工程技术有限公司 | Device for reducing out-leakage of furnace-front smoke of rotary furnace |
| CN209338600U (en) * | 2018-12-18 | 2019-09-03 | 中冶南方工程技术有限公司 | A kind of Converter front door |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT356158B (en) * | 1978-03-08 | 1980-04-10 | Voest Alpine Ag | DEVICE ON A SMOKE COLLECTION CHAMBER FOR A METALLURGICAL VESSEL |
-
2018
- 2018-12-18 CN CN201811546352.1A patent/CN109457078B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201386113Y (en) * | 2009-02-10 | 2010-01-20 | 中冶赛迪工程技术股份有限公司 | Cantilever type smoke baffle wall |
| CN201990695U (en) * | 2011-01-18 | 2011-09-28 | 中冶京诚工程技术有限公司 | Door body structure for fire baffle door in front of furnace and fire baffle door in front of furnace |
| CN203440394U (en) * | 2013-08-23 | 2014-02-19 | 中冶华天南京工程技术有限公司 | Electric fire door device of master control chamber of converter |
| CN203497670U (en) * | 2013-09-11 | 2014-03-26 | 安徽省青阳县九华矿山机械制造有限公司 | Discontinuous unloading device used for bulk material |
| CN104745763A (en) * | 2015-04-01 | 2015-07-01 | 中冶南方工程技术有限公司 | Device for reducing out-leakage of furnace-front smoke of rotary furnace |
| CN209338600U (en) * | 2018-12-18 | 2019-09-03 | 中冶南方工程技术有限公司 | A kind of Converter front door |
Non-Patent Citations (3)
| Title |
|---|
| 《有色金属冶炼设备》编委会.《有色金属冶炼设备 第1卷 火法冶炼设备》.冶金工业出版社,1994,第219-220页. * |
| 150t转炉设备优化改造措施;李树强;王银霞;王晓红;;中国新技术新产品(第06期);全文 * |
| 安钢150吨转炉设备优化改造实践;王丹;《冶金管理》;第58-60页 * |
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| CN109457078A (en) | 2019-03-12 |
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