CN220119859U - Device for emergency slag discharge of side-blown molten pool smelting furnace - Google Patents
Device for emergency slag discharge of side-blown molten pool smelting furnace Download PDFInfo
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- CN220119859U CN220119859U CN202321327899.9U CN202321327899U CN220119859U CN 220119859 U CN220119859 U CN 220119859U CN 202321327899 U CN202321327899 U CN 202321327899U CN 220119859 U CN220119859 U CN 220119859U
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- furnace body
- ladle
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- 239000002893 slag Substances 0.000 title claims abstract description 393
- 238000003723 Smelting Methods 0.000 title claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000001301 oxygen Substances 0.000 claims abstract description 33
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 33
- 239000011449 brick Substances 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 40
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 description 10
- 238000010791 quenching Methods 0.000 description 7
- 230000000171 quenching effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 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
- 239000003345 natural gas Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- Y02P10/20—Recycling
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to an emergency slag discharging device for a side-blown molten pool smelting furnace, which comprises a furnace body, an upper slag port and a bottom slag port which are arranged on the side wall of the same side of the furnace body, wherein an oxygen gun is arranged in the furnace body between the upper slag port and the bottom slag port, and the emergency slag discharging device also comprises an emergency slag discharging port and a slag ladle unit; an emergency slag discharging port is formed in the side wall of the furnace body, the emergency slag discharging port and the bottom slag discharging port are positioned on two different side walls of the furnace body, the emergency slag discharging port is positioned between the oxygen lance and the bottom slag port, and a through chute is arranged outside the furnace body; the slag ladle unit is arranged on the ground at one side of the furnace body and comprises a rail foundation, an electric slag ladle car walking on the rail foundation and two slag ladles arranged on the electric slag ladle car, the flowing direction of slag in the straight-through chute is consistent with the running direction of the electric slag ladle car, and the straight-through chute and the slag ladles are connected up and down. The utility model can reduce the slag discharge amount under emergency condition, shorten the operation time, rapidly expose the oxygen lance out of the liquid level, and truly realize the purpose of rapid furnace shutdown and slag discharge.
Description
Technical Field
The utility model relates to the technical field of side-blown molten pool smelting furnaces, in particular to a device for emergency slag discharge of a side-blown molten pool smelting furnace.
Background
The low-pressure oxygen lance head in the side-blown molten pool smelting furnace is positioned in the slag layer at the upper part of the molten pool lead layer, natural gas and oxygen-enriched air are sprayed out by the oxygen lance to heat, stir and reduce in the slag layer, the burning loss of the oxygen lance is less under the condition of reducing atmosphere, and the industrialized application of the gradually matured side-blown molten pool smelting furnace can continuously run for 24 months.
Once the side-blown molten pool smelting furnace encounters special conditions such as grid flash power failure, air supply failure and the like, the existing guarantee measures can only be maintained for less than 30 minutes, if the special conditions are encountered for too long, slag needs to be timely discharged to enable an oxygen lance to be exposed out of a slag layer, and otherwise phenomena such as oxygen lance blocking, burning loss and the like are forced to be caused to occur for a long time.
The original slag discharge measures are that a slag pit with dry slag paved at the bottom and a cofferdam built by refractory bricks around is arranged on one side of a slag hole at the bottom of a furnace, the slag hole is boiled when emergency is met, molten slag lead in the furnace is directly placed in the slag pit, but high-temperature molten slag can emit large smoke when meeting dry slag, even slight explosion sound exists, dust is very easy to occur when the dense smoke enters a dust collection facility, and a dust collection cover for dust collection is arranged above the slag pit, so that the cleaning of the molten slag lead in the slag pit by subsequent workers is also influenced, and the cleaning difficulty is high.
The original slag discharging measures have a plurality of problems, then the slag pit is removed, 2 slag ladle vehicles are arranged in the direction crossing the bottom slag flow, and each slag ladle vehicle is respectively provided with 2 slag ladles for emergency slag discharging operation. Whereas the existing smelting furnace is configured to: a slag feeding hole and a slag bottom hole are formed in one side wall of the smelting furnace, the slag feeding hole and the slag bottom hole are arranged at the upper and lower positions of the same side face, slag with lower metal content in slag is arranged in a region above the slag feeding hole, and water quenching slag flushing is adopted for the slag in the slag part; a lead slag mixing area is arranged between the slag feeding port and the slag bottom port, and more lead is melted in the furnace as the slag bottom port is closer. The upper slag port is externally connected with a first-stage chute, the bottom slag port is externally connected with a second-stage tee slag chute, the first-stage chute and the second-stage tee slag chute have a drop, the main paths of the first-stage chute and the second-stage tee slag chute are communicated, and the two branches of the second-stage tee slag chute are respectively a slag flushing chute communicated with water quenching slag flushing and a slag melting chute communicated with a slag ladle. The height difference between the upper slag hole and the bottom slag hole is 900mm, oxygen lances are distributed between the upper slag hole and the bottom slag hole, the vertical distance between the bottom slag hole and the center of the oxygen lance is 368mm, and 5.74m slag can be reserved in the fall area.
Based on the slag ladle car, the original slag discharging flow is as follows: firstly placing water quenching slag near a slag feeding port, namely firstly discharging the water quenching slag of the slag which is fully reduced in a furnace and has lower metal content in the slag, firstly, blocking a slag tank by bricking, and enabling the water quenching slag to fall into a secondary three-way slag chute after passing through the slag feeding port and a primary chute, and entering a slag flushing tank along the slag flushing tank until a slag bit line is lower than the slag feeding port; after the water quenching slag flushing of the slag hole is completed, the slag near the bottom slag hole needs to be discharged, at the moment, a slag melting groove on the original brickwork plugging is required to be opened and communicated, the brickwork plugging is performed in the direction of the slag flushing groove, the slag ladle is redirected to discharge slag, and the slag near the bottom slag hole enters the slag ladle along the main path of the two-stage three-way slag flowing groove and the slag melting groove.
The above slag discharge process also has the following problems: 1. because the drop area in the center of the bottom slag hole and the oxygen lance can store slag with the thickness of 5.74m, the slag discharge amount of the bottom slag hole is large, slag bags are required to be switched back and forth, the slag discharge time is about 40min, the secondary three-way slag flowing groove is required to be redirected, the operation is complex, and the purpose of emergency slag discharge cannot be achieved. 2. The slag is discharged to the lower layer of the furnace more easily, the molten lead near the bottom slag hole is discharged more easily, part of crude lead discharged from the bottom slag hole is deposited at the bottom of the slag ladle, the demoulding difficulty is high after the crude lead is cooled, the interior of the slag ladle is difficult to clean, and the slag ladle is almost scrapped basically. 3. The flowing direction of slag in the slag groove is vertical to the running direction of the slag ladle car, slag flow splashing is easy to be caused to be condensed on the rail during slag discharge, and the problems of overflow of full ladle slag, rail burning loss and exceeding of tail gas caused by untimely ladle pouring are more remarkable. 4. The travel of the slag ladle car is longer, and ground personnel are required to drag the slag ladle car to travel the cable, so that the potential safety hazard is uncertain.
Disclosure of Invention
The utility model provides a device for emergency slag discharge of a side-blown molten pool smelting furnace, which aims to solve the problems that the slag discharge amount in the existing furnace is large, the slag discharge operation is tedious, the rapid furnace stopping and slag discharge can not be achieved, and equipment damage is easy to occur; adding an emergency slag discharging port and a slag transferring facility, and deleting unnecessary operation processes; under the condition of ensuring normal tail gas indexes, the slag can be safely and stably discharged in the shortest time, so that the oxygen lance is completely exposed out of the slag surface, and convenience is provided for emergency treatment of the system.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the device for emergency slag discharge of the side-blown molten pool smelting furnace comprises a furnace body, an upper slag hole and a bottom slag hole which are arranged on the side wall of the same side of the furnace body, wherein the upper slag hole and the bottom slag hole are arranged up and down;
the emergency slag outlet is arranged on the side wall of the furnace body, the emergency slag outlet and the bottom slag outlet are arranged on two different side walls of the furnace body, so that the change of the original slag outlet facilities can be avoided, meanwhile, the installation of newly added slag outlet facilities is not limited, the emergency slag outlet is arranged between the oxygen lance and the bottom slag outlet, the slag outlet quantity can be reduced, a through chute used for communicating the emergency slag outlet is arranged outside the furnace body, and slag is put into a slag ladle unit by utilizing the through chute;
the slag ladle unit is arranged on the ground on one side of the furnace body, the slag ladle unit comprises a rail foundation, an electric slag ladle car which walks on the rail foundation and two slag ladles which are arranged on the electric slag ladle car, the flowing direction of slag in the straight-through chute is consistent with the traveling direction of the electric slag ladle car, the straight-through chute and the slag ladles are connected up and down, a certain fall exists, the slag can smoothly enter the slag ladles, and overflow and rail damage phenomena caused by slag flow splashing are prevented.
Further, the emergency slag discharging port is a rectangular port, refractory bricks are built on the furnace body at the periphery of the emergency slag discharging port, and the emergency slag discharging port is plugged by using an unshaped ramming material.
Further, the emergency slag discharge port is lower than the center of the oxygen lance and higher than the bottom slag port, the drop between the existing bottom slag port and the center of the oxygen lance is large, so that the liquid level of the oxygen lance is exposed in a short time, the slag amount from the lower part of the oxygen lance to the slag discharge port is required to be reduced, the vertical distance between the emergency slag discharge port and the center of the oxygen lance is 190mm, the emergency slag discharge amount can be reduced, the emergency treatment time is shortened, the slag discharge direction of the emergency slag discharge port is vertical to the slag discharge direction of the upper slag port and the slag discharge direction of the bottom slag port, and the bottom slag port is not adopted for emergency slag discharge.
Further, the straight-through chute comprises a horizontal section and an inclined section which are communicated with each other; the track foundation is arranged along the laying direction of the through chute, the track foundation length accommodates two electric slag ladle vehicles, the track foundation length is short, a cable is not required to be dragged manually, two slag ladles on the electric slag ladle vehicles are respectively an outer slag ladle and an inner slag ladle, the outer slag ladle needs to be used in turn, the corresponding gantry crane needs to be configured on site for changing the slag ladle, and the inner slag ladle is used for temporarily receiving slag during changing the slag ladle.
Further, an operation platform is arranged on one side of the track foundation, slag discharge operation can be conveniently carried out manually, the operation platform is at a certain height from the ground, and guard rails are arranged on the periphery of the operation platform; one end of the rail foundation extends to the lower part of the operation platform, and the electric slag ladle car reciprocates on the rail foundation inside and outside the operation platform.
Through the technical scheme, the utility model has the beneficial effects that:
compared with the original slag discharging of the bottom slag hole, the slag discharging amount of 2.78m can be reduced by adopting the emergency slag discharging hole, the slag discharging amount discharged by emergency treatment is reduced, the emergency treatment time is shortened, and the possibility of discharging molten lead is also reduced. The emergency slag discharging port, the upper slag port and the bottom slag port are not arranged on the same side face, so that the switching and redirecting time of the original three-way slag chute can be shortened, unnecessary operation time is saved, the preparation time for slag discharging can be reduced compared with the slag discharging of the original bottom slag port, and the aim of rapidly stopping the furnace and discharging slag is really fulfilled.
The running direction of the electric slag ladle car is consistent with the running direction of slag in the through chute, so that the potential hazards of operation interruption or accidents caused by forced burning of the rail foundation and the like when the slag flows to the rail foundation can be avoided. Meanwhile, slag flows into the slag ladle along the straight-through chute in a forward direction, so that the slag ladle is quickly preheated, the time of smoking the slag when the slag is cooled is shortened, the smoke quantity is reduced, the treatment difficulty and pressure of tail gas indexes are reduced, and the treatment standard is realized. The through chute is adopted for discharging slag, the electric slag ladle car is short in stroke, and the slag ladle car is dragged to operate through a fixed sliding wire, so that the electric slag ladle car is relatively safe.
Drawings
FIG. 1 is a schematic diagram of a prior art top, bottom and lance arrangement.
Fig. 2 is a top view of a prior art emergency slag discharge using a slag ladle vehicle.
FIG. 3 is a schematic view of an emergency slag tap arrangement for a side-blown bath smelting furnace according to the present utility model.
FIG. 4 is a schematic illustration of an emergency slag tap-through chute for an emergency slag tap-off device for a side-blown bath smelting furnace of the present utility model.
FIG. 5 is a top view of a slag transfer unit of an apparatus for emergency tapping of a side-blown bath smelting furnace according to the utility model.
The reference numerals in the drawings are: 1 slag ladle car, 2 slag ladle, 3 upper slag hole, 4 bottom slag hole, 5 first-stage chute, 61 slag flushing groove, 62 slag groove, 7 oxygen lance, 8 emergency slag hole, 9 through chute, 91 horizontal section, 92 inclined section, 10 track foundation, 11 electric slag ladle car, 12 outside slag ladle, 13 inside slag ladle, 14 operation platform, 15 furnace body.
Detailed Description
The following detailed description of specific embodiments of the utility model refers to the accompanying drawings:
as shown in fig. 3-5, the device for emergency slag discharge of the side-blown molten pool smelting furnace comprises a furnace body 15, an upper slag hole 3 and a bottom slag hole 4 which are arranged on the same side wall of the furnace body 15, wherein the upper slag hole 3 and the bottom slag hole 4 are arranged up and down, and an oxygen lance 7 is arranged in the furnace body 15 between the upper slag hole 3 and the bottom slag hole 4, which is the conventional arrangement of the existing molten pool smelting furnace.
In this embodiment, in order to truly realize rapid furnace shutdown slag discharge, the slag tapping device further comprises an emergency slag tapping port 8 and a slag ladle unit. On the basis of the existing slag loading port 3 and the existing slag bottom port 4, an emergency slag discharging port 8 is additionally arranged on the furnace body 15, slag is discharged through the emergency slag discharging port 8, and the slag is transported by a slag ladle unit.
An emergency slag discharging port 8 is formed in the side wall of the furnace body 15, the emergency slag discharging port 8 can be a rectangular port, refractory bricks are built on the furnace body 15 on the periphery side of the emergency slag discharging port 8, the emergency slag discharging port 8 is plugged by using an unshaped ramming material, and when the emergency slag discharging device is started, a steel pipe is used for blowing oxygen to open for emergency slag discharging.
The slag notch 8 and the bottom slag notch 4 are positioned on two different side walls of the furnace body 15, namely the slag notch is positioned on one side wall of the furnace body 15, and the slag notch 3 and the bottom slag notch 4 are positioned on the other side wall of the furnace body 15, so that the slag notch 8 slag discharging direction is perpendicular to the slag notch 3 slag discharging direction and the slag notch 4 slag discharging direction, and the normal slag discharging of the slag notch 3 is not influenced.
The emergency slag notch 8 is located between the oxygen lance 7 and the bottom slag notch 4, that is, the emergency slag notch 8 is lower than the center of the oxygen lance 7 and higher than the bottom slag notch 4, and specifically, the vertical distance between the emergency slag notch 8 and the center of the oxygen lance 7 is 190mm, as shown in fig. 3. Thus, slag is discharged from the position of the emergency slag discharge port 8, the amount of slag discharged by emergency treatment can be reduced, and the emergency treatment time is shortened.
In order to smoothly lead out the slag, a through chute 9 for communicating with the emergency slag discharge port 8 is provided outside the furnace body 15, and the through chute 9 includes a horizontal section 91 and an inclined section 92 which are communicated with each other. The emergency slag discharge port 8 and the slag subcontracting unit can be communicated through the through chute 9, so that slag flows into the slag subcontracting unit, as shown in fig. 4.
The ground on one side of the furnace body 15 is provided with a slag ladle unit, and the slag ladle unit comprises a track foundation 10, an electric slag ladle car 11 walking on the track foundation 10 and two slag ladles 2 arranged on the electric slag ladle car 11. A rail foundation 10 is paved on the ground at one side of the furnace body 15, and the rail foundation 10 is distributed along the paving direction of the straight chute 9, namely, the rail foundation 10 is vertical to the length direction of the furnace body 15; the length of the track foundation 10 can accommodate two electric slag ladle vehicles 11, and the travel of a single electric slag ladle vehicle 11 is less than 3m.
The flowing direction of the slag in the through chute 9 is consistent with the traveling direction of the electric slag ladle car 11, namely, the electric slag ladle car 11 travels along the slag discharging direction, so that the slag can be prevented from flowing onto the track.
The through chute 9 and the slag ladle 2 are connected up and down, a certain drop is formed between the two slag ladles 2 on the electric slag ladle car 11, an outer slag ladle 12 and an inner slag ladle 13 are respectively arranged on the two slag ladles 2, an outer slag ladle 12 is arranged far away from the furnace body 15, the outer slag ladle 12 needs to be replaced alternately, and the inner slag ladle 13 is used as a standby during ladle replacement and is used for temporarily receiving slag during the replacement of the outer slag ladle 12.
In this embodiment, a gantry crane is further provided, the moving range of the gantry crane covers the entire running space of the electric slag ladle car 11, and the gantry crane is used to perform the successive replacement of the outer slag ladle 12.
In this embodiment, an operation platform 14 is disposed on one side of the track foundation 10, the operation platform 14 is at a certain height from the ground, and guard rails are disposed around the operation platform 14. One end of the rail foundation 10 extends to the operation platform 14, and the electric slag ladle car 11 reciprocates on the rail foundation 10 inside and outside the operation platform 14; in a normal state, the electric slag ladle car 11 is placed in the range of the operation platform 14, as shown in fig. 5.
The principle of the utility model is as follows: when the command of stopping the furnace or replacing the oxygen lance 7 is received, the process operation enters a reduction stage, after the slag in the furnace is fully reduced, the slag in the furnace is discharged through the slag feeding port 3, and the water quenching slag enters a slag flushing tank after passing through the slag flushing tank 61 according to the original mode; until the slag line in the furnace is lowered to the vicinity of the slag feeding port 3, and the slag feeding port 3 is blocked after the slag is not discharged.
At this time, the emergency slag discharging port 8 at the other side is opened, slag in the furnace is placed into the outer slag ladle 12 through the through chute 9, after the outer slag ladle 12 is fully filled, the electric slag ladle car 11 is opened out of the working platform 14 until the inner slag ladle 13 temporarily receives slag, the slag ladle exchanging operation is carried out by using the gantry crane, the outer slag ladle 12 fully filled with slag is lifted out, the new slag ladle 2 is placed on the electric slag ladle car 11, the electric slag ladle car is opened back into the working platform 14 again, the slag is connected by the new slag ladle just replaced, the inner slag ladle 13 enters the standby stage, and the slag discharging operation is completed repeatedly. After the oxygen lance 7 is completely exposed out of the slag surface, the side-blown molten pool smelting furnace can implement maintenance operation of lance replacement or other equipment.
The utility model realizes the rapid exposure of the oxygen lance 7 in the side-blown molten pool smelting furnace to the liquid level, avoids the long-time furnace shutdown phenomenon caused by the blockage of the oxygen lance 7, and avoids the phenomenon that the position of the bottom slag notch 4 is low, the bottom slag notch 4 is easy to discharge molten lead, and the slag ladle 2 is not easy to clean. The problem that tail gas of slag pit slag discharge when encountering cold and emitting large smoke contains dust and exceeds standard is solved well, the dislocation slag discharge of the emergency slag discharge port 8 shortens the redirection operation time of the original three-way slag chute, provides convenience for emergency disposal of the system, and can be widely applied to the rapid slag discharge and furnace shutdown operation of various side-blown molten pool smelting furnaces.
The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, so that all equivalent changes or modifications of the structure, characteristics and principles described in the claims should be included in the scope of the present utility model.
Claims (5)
1. The device for emergency slag discharge of the side-blown molten pool smelting furnace comprises a furnace body (15), an upper slag hole (3) and a bottom slag hole (4) which are arranged on the same side wall of the furnace body (15), wherein the upper slag hole (3) and the bottom slag hole (4) are arranged up and down, an oxygen gun (7) is further arranged in the furnace body (15) between the upper slag hole (3) and the bottom slag hole (4), and the device is characterized by further comprising an emergency slag discharge hole (8) and a slag ladle unit;
the side wall of the furnace body (15) is provided with an emergency slag outlet (8), the emergency slag outlet (8) and the bottom slag outlet (4) are positioned on two different side walls of the furnace body (15), the emergency slag outlet (8) is positioned between the oxygen lance (7) and the bottom slag outlet (4), and a through chute (9) for communicating the emergency slag outlet (8) is arranged outside the furnace body (15);
the slag transfer unit is arranged on the ground on one side of the furnace body (15), and comprises a track foundation (10), an electric slag ladle car (11) walking on the track foundation (10) and two slag ladles (2) arranged on the electric slag ladle car (11), wherein the flowing direction of slag in the straight-through chute (9) is consistent with the walking direction of the electric slag ladle car (11), and the straight-through chute (9) and the slag ladles (2) are connected up and down.
2. The device for emergency slag discharge of a side-blown molten pool smelting furnace according to claim 1, wherein the emergency slag discharge port (8) is a rectangular port, refractory bricks are built on a furnace body (15) on the periphery of the emergency slag discharge port (8), and the emergency slag discharge port (8) is plugged by using an unshaped ramming material.
3. The device for emergency slag discharge of the side-blown molten pool smelting furnace according to claim 1, wherein the emergency slag discharge port (8) is lower than the center of the oxygen lance (7) and higher than the bottom slag port (4), the vertical distance between the emergency slag discharge port (8) and the center of the oxygen lance (7) is 190mm, and the slag discharge direction of the emergency slag discharge port (8) is vertical to the slag discharge direction of the upper slag port (3) and the bottom slag port (4).
4. The device for emergency slag tapping of a side-blown bath smelting furnace according to claim 1, characterized in that the through chute (9) comprises a horizontal section (91) and an inclined section (92) in communication with each other;
the rail foundations (10) are distributed along the laying direction of the through chute (9), the lengths of the rail foundations (10) accommodate two electric slag ladle vehicles (11) to move to the greatest extent in the same direction in a workshop, and two slag ladles (2) on the electric slag ladle vehicles (11) are respectively an outer slag ladle (12) and an inner slag ladle (13).
5. The device for emergency slag discharge of the side-blown molten pool smelting furnace according to claim 1, wherein an operation platform (14) is arranged on one side of the track foundation (10), the operation platform (14) is at a certain height from the ground, and protective fences are arranged around the operation platform (14); one end of the track foundation (10) extends to the lower part of the operation platform (14), and the electric slag ladle car (11) reciprocates on the track foundation (10) inside and outside the lower part of the operation platform (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327899.9U CN220119859U (en) | 2023-05-29 | 2023-05-29 | Device for emergency slag discharge of side-blown molten pool smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327899.9U CN220119859U (en) | 2023-05-29 | 2023-05-29 | Device for emergency slag discharge of side-blown molten pool smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220119859U true CN220119859U (en) | 2023-12-01 |
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ID=88888378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321327899.9U Active CN220119859U (en) | 2023-05-29 | 2023-05-29 | Device for emergency slag discharge of side-blown molten pool smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220119859U (en) |
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2023
- 2023-05-29 CN CN202321327899.9U patent/CN220119859U/en active Active
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