CN118129462A - Metallurgical furnace for refining top-blown molten pool - Google Patents
Metallurgical furnace for refining top-blown molten pool Download PDFInfo
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- CN118129462A CN118129462A CN202410277852.9A CN202410277852A CN118129462A CN 118129462 A CN118129462 A CN 118129462A CN 202410277852 A CN202410277852 A CN 202410277852A CN 118129462 A CN118129462 A CN 118129462A
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- Prior art keywords
- blown
- furnace
- spray gun
- lance
- slag
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- 238000007670 refining Methods 0.000 title claims abstract description 29
- 239000007921 spray Substances 0.000 claims abstract description 71
- 239000002893 slag Substances 0.000 claims abstract description 37
- 239000000155 melt Substances 0.000 claims abstract description 26
- 230000033116 oxidation-reduction process Effects 0.000 claims abstract description 26
- 238000003723 Smelting Methods 0.000 claims abstract description 21
- 238000007664 blowing Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 11
- 239000011819 refractory material Substances 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010310 metallurgical process Methods 0.000 claims description 3
- 238000005272 metallurgy Methods 0.000 claims description 3
- 239000011343 solid material Substances 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000009970 fire resistant effect Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 24
- 229910052802 copper Inorganic materials 0.000 description 21
- 239000010949 copper Substances 0.000 description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005058 metal casting Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- UXNBTDLSBQFMEH-UHFFFAOYSA-N [Cu].[Zn].[Pb] Chemical compound [Cu].[Zn].[Pb] UXNBTDLSBQFMEH-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000006028 limestone Substances 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
- 238000012545 processing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/15—Tapping equipment; Equipment for removing or retaining slag
- F27D3/1545—Equipment for removing or retaining slag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B2014/008—Continuous casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a metallurgical furnace for refining a top-blown molten pool, which relates to the technical field of nonferrous metal smelting, in particular to a metallurgical furnace for refining a top-blown molten pool. The slag former can be continuously added by utilizing the auxiliary material adding port, so that impurities in the solution of the metallurgical furnace can be continuously oxidized for slag formation; the fire-resistant material of the bottom of the furnace hearth below the spray gun is built to be of an inverted arch structure, the compressed gas sprayed by the oxidation-reduction spray gun can enable the melt to form stirring, the lower part of the charging hole is built to be of a protruding structure, the impact of adding solid materials is buffered, the splashing of liquid is reduced, the lower part of the slag hole is built to be of a protruding structure, and slag is automatically discharged from the slag hole along with the surging of the melt formed by the gas sprayed by the top-blowing spray gun.
Description
Technical Field
The invention relates to the technical field of nonferrous metal smelting, in particular to a metallurgical furnace for refining in a top-blowing molten pool.
Background
With the continuous development of industry, in the field of nonferrous metal smelting, according to different requirements of smelting raw materials and target products, different smelting plants adopt different furnace type devices for treatment, and from the broad aspect of furnace type structures, the smelting plants can be divided into fixed furnace types and rotary furnace types; the method can be divided into top blowing, side blowing, bottom blowing, composite converting and the like according to the air supply mode and the air supply position, so that the method is also continuously popularized and applied due to different process advantages of different furnace types.
In the prior art, in the copper smelting process, in the copper matte blowing or blister copper refining and scrap copper smelting processes and in the waste wire and cable copper metal impurity removal and recovery process, because the melt and the continuous casting and rolling production process are not in butt joint with each other, the oxidation slagging of a metallurgical furnace is inconvenient when the metallurgical furnace is used for smelting, and in the secondary process, manual deslagging operation is needed, so that the labor intensity is high, a certain improvement space is provided, and therefore, the metallurgical furnace for refining a top-blowing molten pool is provided.
Disclosure of Invention
The invention provides a metallurgical furnace for refining a top-blown molten pool, which solves the problems set forth in the background art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a metallurgical furnace of top-blown molten pool refining, includes furnace body and top-blown lance system, top-blown lance system includes top-blown redox spray gun, top-blown combustion gun and spray gun controlling means, top-blown redox spray gun is located the top of furnace body to set up top-blown combustion gun in top-blown redox spray gun's front side, top-blown redox spray gun and top-blown combustion gun are all connected with spray gun controlling means, and top-blown redox spray gun and top-blown combustion gun are through the operation controllable spray gun of spray gun controlling means entering furnace chamber in the furnace body height in, and the furnace body includes the stove outer covering, offered the charge door rather than the inner chamber intercommunication in the side of stove outer covering in the furnace body, be provided with the waste part slag notch in the metallurgical process simultaneously on the length direction of stove outer covering, can be switched over fast according to technology needs, utilize spray gun controlling means control lifting, control spray gun male degree of depth according to smelting cycle needs.
As a further metallurgical furnace for refining a top-blown molten pool, the furnace shell is of a square structure, refractory materials are arranged in the inner lining of the furnace shell, and the furnace shell can be a hearth for melt reaction in metallurgy after the refractory materials are built according to the functional zoning design of different parts of the furnace body.
As a further metallurgical furnace for refining a top-blown molten pool, the top of the furnace shell is provided with an auxiliary material feeding port positioned at one side of a top-blown combustion gun, the top of the furnace shell is provided with a spray gun hole, the spray gun hole can be used for inserting a top-blown oxidation-reduction spray gun and a spray gun on the top-blown combustion gun into a furnace body through a through hole, the through hole can facilitate the top-blown oxidation-reduction spray gun to enter the furnace shell, the temperature in the furnace is controlled by a mode of blowing natural gas, oil, air and oxygen-enriched air, the flame direction of a burner is opposite to the lower edge of the feeding hole, the burner can conveniently and rapidly melt the added solid materials, and the burner can be in a sleeve form of internally introducing oxygen and externally introducing natural gas or a double-pipe form of respectively introducing oxygen and natural gas or oil gas.
As a further metallurgical furnace for refining a top-blown molten pool, the top of the hearth is provided with a flue opening, and the flue opening can guide out flue gas generated in the smelting process.
As a further metallurgical furnace for refining a top-blown molten pool, the invention is characterized in that a melt outlet is arranged below the inner cavity of the furnace shell.
As a metallurgical furnace for refining a top-blown molten pool, the refractory material at the bottom of the pool below the top-blown oxidation-reduction spray gun is built in an inverted arch shape, so that stirring is formed when the top-blown oxidation-reduction spray gun and the top-blown combustion gun are sprayed.
As a further metallurgical furnace for refining a top-blown molten pool, the bottom of the charging hole is built into a convex structure to buffer the impact of adding solid materials, reduce the splashing of liquid, and the bottom of the slag hole is also built into a convex structure, so that slag is automatically discharged from the slag hole along with the melt surge formed by spraying gas by the top-blown oxidation-reduction spray gun.
The invention has the following beneficial effects:
1. According to the metallurgical furnace for refining the top-blown molten pool, the slag former can be continuously added into the metallurgical furnace through the auxiliary material adding port, so that impurities in the solution of the metallurgical furnace can be continuously oxidized for slag formation;
The fire-resistant material of the bottom of the furnace hearth below the spray gun is built to be in an inverted arch structure, so that the compressed gas sprayed by the oxidation-reduction spray gun can stir the melt, the lower part of the charging hole is built to be in a protruding structure, the impact of adding solid materials is buffered, the splashing of liquid is reduced, the lower part of the slag hole is built to be in a protruding structure, and slag is automatically discharged from the slag hole along with the surging of the melt formed by the gas sprayed by the top-blowing spray gun;
manual slag skimming operation is omitted, and labor intensity is reduced;
the practicability during use is improved, and the casting of various metal materials can be conveniently carried out by workers.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of a partial cross-sectional structure of the present invention;
FIG. 4 is a schematic view of a partially enlarged structure of the present invention;
Fig. 5 is a schematic structural view of the through hole of the present invention.
In the figure: 1. top-blowing redox spray gun; 2. top-blowing burning gun; 3. a spray gun control device; 4. a furnace shell; 5. a feed inlet; 6. a refractory material; 7. a slag outlet; 8. a furnace; 9. a smoke gate; 10. a melt outlet; 11. an auxiliary material adding port; 12. and (5) a through hole.
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 to 5, the present invention provides a technical solution: the utility model provides a metallurgical furnace of top-blown molten pool refining, includes furnace body and top-blown lance system, top-blown lance system includes top-blown redox spray gun 1, top-blown combustion gun 2 and spray gun controlling means 3, top-blown redox spray gun 1 is located the top of furnace body to set up top-blown combustion gun 2 in the front side of top-blown redox spray gun 1, top-blown redox spray gun 1 and top-blown combustion gun 2 are all connected with spray gun controlling means 3, and top-blown redox spray gun 1 and top-blown combustion gun 2 are through the operation controllable spray gun of spray gun controlling means 3 entering the height in the furnace chamber in the furnace body, and the furnace body includes furnace shell 4, and the charge door 5 with its inner chamber intercommunication has been seted up to the side of furnace shell 4 in the furnace body, and the while in the length direction of furnace shell 4 is provided with waste part slag notch 7, can switch in the metallurgical process according to the technology needs, utilizes spray gun controlling means 3 to control the promotion, according to smelting cycle needs control the degree of spray gun insertionment.
The copper alloy melting device can be used for copper matte blowing or crude copper refining, scrap copper smelting and the like in copper smelting, particularly copper metal impurity removal and recovery of waste wires and cables, and the melt is directly in butt joint with a continuous casting and rolling production process to produce high-precision copper materials, and has the advantages of simple structure, reduced cost, low labor intensity of workers and good environmental protection effect.
The furnace type metal casting device can be used for lead and zinc smelting to replace the existing furnace type, can be used for metal casting in copper-lead-zinc deep processing enterprises, increases the practicability in use, and can facilitate the casting of various metal materials by workers.
The furnace shell 4 is of square structure, and refractory material 6 is arranged in the inner lining of the furnace shell 4, and when the refractory material 6 is built on the furnace shell 4, a hearth 8 for melt reaction in metallurgy can be arranged.
The top of the furnace shell 4 is provided with an auxiliary material inlet 11 positioned at one side of the top-blown combustion gun 2, and the top of the furnace shell 4 is provided with a spray gun hole which can be used for inserting the top-blown oxidation-reduction spray gun 1 and the spray gun on the top-blown combustion gun 2 into a furnace body through a through hole 12.
A flue opening 9 is formed in the top of the hearth 8, and the flue opening 9 can guide out flue gas generated in the smelting process.
A melt outlet 10 is arranged below the inner cavity of the furnace shell 4.
The bottom of the top-blown oxidation-reduction spray gun 1 is built into an inverted arch shape by refractory material 6 at the bottom of the furnace tank, stirring can be formed when the top-blown oxidation-reduction spray gun 1 and the top-blown combustion gun 2 are sprayed in, the bottom of the charging hole 5 is built into a convex structure, the bottom of the slag hole 7 is also built into a convex structure, compressed gas sprayed by the oxidation-reduction spray gun 1 can be enabled to stir the melt, the lower part of the charging hole is built into a convex structure, impact of solid materials is buffered, liquid splashing is reduced, the lower part of the slag hole is built into a convex structure, and the slag is automatically discharged from the slag hole along with the gush of the melt formed by gas sprayed by the top-blown spray gun.
In summary, the working principle of the metallurgical furnace for refining the top-blown molten pool is as follows:
Embodiment one:
The metallurgical furnace for top-blown refining can be applied to crude copper refining or scrap copper refining, particularly copper metal impurity removal and recovery of waste wires and cables, and the produced melt is directly in butt joint with a continuous casting and rolling production process to produce high-precision copper materials, specifically, when a smelting period starts, a feeding device is utilized to directly feed solid materials into the middle part of a hearth 8 through a feeding port 5, and a refractory material 6 in the middle part of the hearth 8 can buffer collision and melt splashing caused by falling of the solid materials; when the processed raw materials are liquid melt, the chute erected outside the furnace can be used for adding the raw materials into the furnace, after the feeding is finished, the burner at the top of the furnace body and the top-blown oxidation-reduction spray gun 1 are used for heating and melting the solid materials in the furnace or maintaining the temperature in the furnace, the burner is used for heating natural gas and pure oxygen, the flame direction is controlled to be aligned to the lower part of the feed inlet 5, the solid materials just added are intensively melted in a flame high-temperature area, the heat utilization rate is improved, after the materials are completely melted or the temperature in the furnace meets the process requirement, the top-blown oxidation-reduction spray gun 1 is adjusted by using the furnace top spray gun lifting fixing device, the bottom of the top-blown oxidation-reduction spray gun 1 is inserted into the melt, meanwhile, the spray gun is connected with compressed air/oxygen-enriched air by using the spray gun quick switching joint, the top-blown oxidation-reduction spray gun 1 sprays gas into a molten pool for oxidation operation, the top of the furnace is provided with a spray gun mud covering device, which can automatically cover a layer of refractory mud on the surface of the top-blown oxidation-reduction spray gun 1, slow down the loss of the spray gun, control the air supply pressure of the top-blown oxidation-reduction spray gun 1 to be 0.1 Mpa-0.5 Mpa, the bottom end of the top-blown oxidation-reduction spray gun 1 is inserted into the melt depth of 100 mm-400 mm, simultaneously, slag former is continuously added from an auxiliary material adding port 11, so that impurities in the melt are continuously oxidized and slag-formed, the compressed gas sprayed by the top-blown oxidation-reduction spray gun 1 can lead the melt to be vigorously stirred, so that slag floating on the surface of the melt can automatically flow out through a slag outlet 7, manual slag skimming operation is omitted, the labor intensity is reduced, the generated flue gas is discharged through a flue opening 9, after the oxidation slag discharging operation is completed, the compressed air is switched to be connected with the reducing agent spraying device through a quick connector at the upper part of the top-blown oxidation-reduction spray gun 1, or natural gas, oxygen-enriched air and other reducing agents are sprayed into the molten pool to reduce the copper solution, and the reduced qualified copper solution is discharged and cast into an anode plate through a melt outlet 10.
Embodiment two:
A metallurgical furnace with top blowing can be applied to copper matte blowing working procedures in copper smelting, specifically, copper matte produced in the smelting working procedures is added into the furnace through a charging port 5 by utilizing a chute, the depth of a top-blown oxidation-reduction spray gun 1 in a melt is controlled by utilizing a spray gun control device 3, oxygen-enriched gas is sprayed into the melt by the top-blown oxidation-reduction spray gun 1, the oxygen-enriched concentration is controlled to be 21% -30%, and copper sulfur in the melt is blown. In the blowing process, the top-blowing oxidation-reduction spray gun 1 forms stirring with a certain range in a molten pool through the spray gun control device 3, simultaneously slag formers such as silicon dioxide or limestone are added from the auxiliary material adding port 11, slag is formed on impurities such as Fe, zn and the like in the melt, slag floats on the surface of the molten pool, and overflows and is discharged through the slag outlet 7. The copper matte is subjected to continuous converting oxidation to produce blister copper with copper content of more than 98.5%, and the blister copper is discharged through a melt discharge outlet 10.
Embodiment III:
A metallurgical furnace for top blowing is prepared through proportionally mixing Pb-contained material and flux, granulating, adding it to furnace from auxiliary material inlet 11, smelting, heating, stopping feeding, immersing in molten pool, switching over natural gas, and reducing high-lead slag by high-lead slag at 1000-1400 deg.C. In order to maintain the required temperature in the furnace, heat is supplemented from the burner to ensure the reduction temperature, the metallic lead and slag produced after reduction are separated due to different densities, slag on the surface of the melt is discharged through the slag outlet 7, and the metallic lead is discharged from the melt outlet 10 to complete one furnace period operation.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A metallurgical furnace for refining a top-blown molten pool comprises a furnace body and a top-blown spray gun system, and is characterized in that: the top-blown lance system comprises a top-blown redox lance (1), a top-blown combustion lance (2) and a lance control device (3), wherein the top-blown redox lance (1) is positioned above a furnace body, the top-blown combustion lance (2) is arranged on the front side of the top-blown redox lance (1), the top-blown redox lance (1) and the top-blown combustion lance (2) are both connected with the lance control device (3), the top-blown redox lance (1) and the top-blown combustion lance (2) can control the height of the lance entering a furnace cavity in the furnace body through the operation of the lance control device (3), the furnace body comprises a furnace shell (4), a charging hole (5) communicated with the inner cavity of the furnace shell (4) is formed in the side face of the furnace body, and a slag hole (7) at a waste position in the metallurgical process is formed in the length direction of the furnace shell (4).
2. A top-blown molten bath refining metallurgical furnace as claimed in claim 1 wherein: the furnace shell (4) is of a square structure, a refractory material (6) is arranged in the inner lining of the furnace shell (4), and a hearth (8) for melt reaction in metallurgy can be arranged after the refractory material (6) is built on the furnace shell (4).
3. A top-blown molten bath refining metallurgical furnace as claimed in claim 2 wherein: the top of the furnace shell (4) is provided with an auxiliary material adding port (11) positioned at one side of the top-blown combustion gun (2), and the top of the furnace shell (4) is provided with a spray gun hole which can be used for inserting the top-blown oxidation-reduction spray gun (1) and a spray gun on the top-blown combustion gun (2) into a furnace body through a through hole (12).
4. A top-blown molten bath refining metallurgical furnace as claimed in claim 2 wherein: a flue opening (9) is formed in the top of the hearth (8), and the flue opening (9) can guide out flue gas generated in the smelting process.
5. A top-blown molten bath refining metallurgical furnace as claimed in claim 1 wherein: a melt outlet (10) is arranged below the inner cavity of the furnace shell (4).
6. A top-blown molten bath refining metallurgical furnace as claimed in claim 2 wherein: the bottom refractory material (6) of the furnace hearth below the top-blowing oxidation-reduction spray gun (1) is built in an inverted arch shape, so that stirring is formed when the top-blowing oxidation-reduction spray gun (1) and the top-blowing combustion gun (2) are sprayed.
7. A top-blown molten bath refining metallurgical furnace as claimed in claim 1 wherein: the bottom of the charging hole (5) is built to be of a convex structure, and the bottom of the slag hole (7) is also built to be of a convex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410277852.9A CN118129462A (en) | 2024-03-12 | 2024-03-12 | Metallurgical furnace for refining top-blown molten pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410277852.9A CN118129462A (en) | 2024-03-12 | 2024-03-12 | Metallurgical furnace for refining top-blown molten pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118129462A true CN118129462A (en) | 2024-06-04 |
Family
ID=91242394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410277852.9A Pending CN118129462A (en) | 2024-03-12 | 2024-03-12 | Metallurgical furnace for refining top-blown molten pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118129462A (en) |
-
2024
- 2024-03-12 CN CN202410277852.9A patent/CN118129462A/en active Pending
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