CN219670539U - Switchable electric arc furnace steelmaking slag processing system - Google Patents
Switchable electric arc furnace steelmaking slag processing system Download PDFInfo
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- CN219670539U CN219670539U CN202223531297.3U CN202223531297U CN219670539U CN 219670539 U CN219670539 U CN 219670539U CN 202223531297 U CN202223531297 U CN 202223531297U CN 219670539 U CN219670539 U CN 219670539U
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The utility model relates to a switchable electric arc furnace steelmaking slag treatment system, and belongs to the technical field of electric arc slag treatment. The technical proposal is as follows: the first water slag ditch (4) is communicated with the second water slag ditch (5) and is intersected, a section of the water slag ditch is combined and then connected with the dehydration device (8), a second punching box (6) is arranged in one end, far away from the dehydration device (8), of the second water slag ditch (5), a tilting mechanism (7) is arranged above the second punching box (6), and a slag pot (72) is arranged in a matched mode by the tilting mechanism (7); the movable chute (2) moves along the extending direction of the first water slag ditch (4), and is matched with the first water slag ditch (4) and the slag tank (72) respectively. The utility model switches two modes for granulating the steelmaking slag of the electric arc furnace, the peak slag is carried by the movable chute and the slag tank for dumping and granulating, and the slag is granulated along the water slag ditch during normal slag discharging, thereby avoiding the problem of shutdown and production stopping caused by severe working environment and maintenance and stopping.
Description
Technical Field
The utility model relates to a switchable electric arc furnace steelmaking slag treatment system, and belongs to the technical field of electric arc slag treatment.
Background
The world's crude steel production in recent years is 16-18 hundred million tons, with 4 hundred million tons of electric arc furnace steel accounting for about 25%. Except China, the electric arc furnace steel of the global iron and steel industry has more than 40 percent. In 2020, the production of crude steel in China is 10.53 hundred million tons, wherein the crude steel in electric arc furnace is about 0.96 hundred million tons, the proportion is 9%, and by 2020, the production capacity of electric arc furnace in China is over 420 and over 30 tons, and is 18225 ten thousand tons. The electric arc furnace generates about 1/30 solid waste, so that the electric arc slag with the volume is not comprehensively utilized, thereby not only causing environmental pollution, but also causing more resource waste. For example, the utility model patent application CN 114410858A discloses and describes a molten liquid slag comprehensive treatment system and method, which comprises a swinging chute, a water slag ditch, a granulating mechanism and a dehydrator, wherein a chute slag hole is formed in the swinging chute, one end of the water slag ditch is connected under the chute slag hole, the other end of the water slag ditch is connected with the dehydrator, one end of the water slag ditch connected with the swinging chute is connected with the granulating mechanism, the granulating mechanism comprises an air quenching tank and a water quenching flushing tank, the water quenching flushing tank is arranged below the air quenching tank, one surface of the air quenching tank facing the dehydrator is connected with a compressed air nozzle and/or a jet plug, and one surface of the water quenching flushing tank facing the dehydrator is connected with a water nozzle and/or a jet plug. However, when the arc furnace slag is processed, the temperature of the arc furnace slag is too high and reaches 1300-1400 ℃, so that a rotary bearing and a thrust bearing in a swinging chute of the system are easy to lose efficacy after heat radiation under the state of long-term high-temperature working, and lubrication and maintenance are difficult; in addition, because the structure is single, when the swing chute is damaged, the swing chute needs to be stopped for maintenance, and no alternative scheme exists, so the swing chute needs to be improved.
Disclosure of Invention
The utility model aims to provide a switchable electric arc furnace steelmaking slag processing system, which is used for granulating two ways of electric arc furnace steelmaking slag, wherein a moving chute and a slag tank are used for carrying out dumping granulation on peak slag, and granulation is carried out along a water slag ditch during normal slag discharging, so that the problem of shutdown and production stopping caused by severe working environment and maintenance and stopping is avoided, the production is more efficient and safer, and the problems in the background technology are solved.
The technical scheme of the utility model is as follows:
the switchable electric arc furnace steelmaking slag treatment system comprises an electric arc furnace slag hole, a movable chute, a first punching box, a first water slag ditch, a tilting mechanism and a dewatering device, wherein the movable chute is arranged below the electric arc furnace slag hole, the first water slag ditch is arranged below the movable chute, the first punching box is arranged inside the first water slag ditch, a second water slag ditch is arranged below the electric arc furnace slag hole, the first water slag ditch and the second water slag ditch are communicated and intersected, a section of the first water slag ditch is combined after intersection, the dewatering device is connected, the second water slag ditch is arranged inside one end of the second water slag ditch far away from the dewatering device, the tilting mechanism is arranged above the second punching box, and the tilting mechanism is matched with a slag pot; the movable chute moves along the extending direction of the first water slag ditch, and is matched with the first water slag ditch and the slag tank respectively.
The first water slag ditch and the second water slag ditch are intersected in a herringbone manner and communicated.
The movable chute comprises a chute shell, one side of the chute shell is internally provided with a chute lining, the thickness of the chute lining is uniformly set, a trolley is arranged below the chute, and a rail is arranged below the trolley.
The slag tank matched with the tipping mechanism is positioned below the movable chute and used for receiving molten slag flowing out of the movable chute, and a detachable movable connecting structure is arranged between the slag tank and the tipping mechanism.
The first water slag ditch is arranged obliquely and is of a curve type, one end of the first water slag ditch, which is close to the movable chute, is higher in position, is provided with a cast iron lining, one end of the first water slag ditch, which is far away from the movable chute, is lower in position, and is provided with a wear-resistant pouring material lining.
The first punching box is positioned in one side of the slag ditch, which is close to the movable chute, and is a polygonal box body, provided with a water inlet pipe and one side of the box body is provided with a plurality of water outlets.
The second water slag ditch is obliquely arranged, the part of the second water slag ditch, which is close to the tilting mechanism, is higher in position and is a cast iron lining, and the part of the second water slag ditch, which is far away from the tilting mechanism, is lower in position and is a wear-resistant pouring material lining.
The tilting mechanism comprises a tilting support arm, a slag pot is arranged on the tilting support arm, the tilting support arm is arranged on a tilting support seat, and a driving mode is that the tilting support arm is provided with a cylinder or other driving modes.
By adopting the utility model, molten slag flows into a slag runner I from a slag hole of an electric arc furnace through a movable chute; when the peak slag is discharged, the movable chute moves along the track and the tail end of the track is provided with a limit, when the movable chute moves to the rear limit, at the moment, one end of the movable chute for receiving slag is just positioned under the slag outlet of the electric arc furnace, the lower part of the slag outlet end of the movable chute is well aligned with the slag pot, molten liquid metal slag flowing out of the slag outlet of the electric arc furnace flows into the slag pot through the movable chute, after the slag in the slag pot reaches a certain capacity, the slag pot moves through the track, the crown block is hoisted to the tipping support arm and is locked with the tipping support arm, at the moment, the driving cylinder of the tipping support arm extends to push the slag pot to pour, molten metal flows out and is subjected to tearing, crushing and granulating through pressure water sprayed out of the second overshoot casting box, and a slag-water mixture flows into the second slag runner at the same time and flows into the dewatering device along the gradient of the second water slag runner to dewater. When the movable chute moves to the front limit, molten liquid metal slag flowing out of the slag hole of the electric arc furnace is directly torn and crushed by the impact of the pressure water of the overshoot casting box I and then flows into the slag runner I along the water flow, and the slag-water mixture flows into the dewatering device along the gradient of the slag runner I for dewatering.
The beneficial effects of the utility model are as follows: the two ways of granulating are switched to the steelmaking slag of the electric arc furnace, the peak slag is carried by the movable chute and the slag tank to be poured and granulated, and the slag is granulated along the water slag ditch during normal slag discharging, so that the problems of shutdown and production stopping caused by severe working environment and maintenance stopping are avoided, and the production is more efficient and safer.
Drawings
FIG. 1 is a schematic diagram of a structure of a mobile chute according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a structure of a mobile chute according to an embodiment of the present utility model without slag connection;
FIG. 3 is a schematic view of a mobile chute according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a first embodiment of a punching box;
FIG. 5 is a schematic diagram of the structures of a first water slag ditch and a second water slag ditch according to the embodiment of the utility model;
FIG. 6 is a schematic view of a tilting mechanism according to an embodiment of the present utility model;
in the figure: the slag notch 1 of the electric arc furnace, the movable chute 2, the chute 21, the chute shell 211, the chute lining 212, the trolley 22, the rail 23, the first punching box 3, the box body 31, the water outlet 311, the water inlet pipe 32, the first water slag ditch 4, the second water slag ditch 5, the second punching box 6, the tilting mechanism 7, the tilting arm 71, the slag pot 72, the tilting support 73 and the dewatering device 8.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings.
As shown in fig. 1, a switchable electric arc furnace steelmaking slag treatment system comprises an electric arc furnace slag hole 1, a movable chute 2, a first flushing tank 3, a first water slag groove 4, a tilting mechanism 7 and a dewatering device 8, wherein the movable chute 2 is arranged below the electric arc furnace slag hole 1, the first water slag groove 4 is arranged below the movable chute 2, the first flushing tank 3 is arranged inside the first water slag groove 4, a second water slag groove 5 is arranged below the electric arc furnace slag hole 1, the first water slag groove 4 and the second water slag groove 5 are communicated and intersected, a section of the first water slag groove is combined and then connected with the dewatering device 8, the second flushing tank 6 is arranged inside one end of the second water slag groove 5 far away from the dewatering device 8, the tilting mechanism 7 is arranged above the second flushing tank 6, and the tilting mechanism 7 is matched with a slag pot 72; the movable chute 2 moves along the extending direction of the first water slag ditch 4, and the movable chute 2 is matched with the first water slag ditch 4 and the slag tank 72 respectively.
The first water slag ditch 4 and the second water slag ditch 5 are intersected in a herringbone manner and communicated.
The movable chute 2 comprises a chute 21, the chute 21 comprises a chute housing 211, a chute liner 212 is arranged on one side inside the chute housing 211, the thickness of the chute liner 212 is uniformly arranged, a trolley 22 is arranged below the chute 21, and a rail 23 is arranged below the trolley 22.
The slag pot 72 matched with the tipping mechanism 7 is positioned below the movable chute 2 and is used for receiving molten slag flowing out of the movable chute 2, and a detachable movable connecting structure is arranged between the slag pot 72 and the tipping mechanism 7.
The first water slag ditch 4 is obliquely arranged and is of a curve type, one end position of the first water slag ditch 4, which is close to the movable chute 2, is higher, a cast iron lining is arranged, one end position, which is far away from the movable chute 2, is lower, and a wear-resistant pouring material lining is arranged.
The first punching box 3 is positioned in one side of the first slag runner 4, which is close to the movable chute 2, the first punching box 3 is a polygonal box body 31, a water inlet pipe 32 is arranged, and a plurality of water outlets 311 are arranged on one side of the box body 31.
The second water slag ditch 5 is obliquely arranged, the part of the second water slag ditch 5, which is close to the tipping mechanism 7, is higher in position and is a cast iron lining, and the part of the second water slag ditch 5, which is far away from the tipping mechanism 7, is lower in position and is a wear-resistant pouring material lining.
The tilting mechanism 7 comprises a tilting arm 71, a slag pot 72 being provided on the tilting arm 71, the tilting arm 71 being provided on a tilting support 73, the tilting arm 71 being provided with a drive, in the form of a cylinder or other drive.
As shown in fig. 1 and fig. 3, a moving chute 2 is disposed below the slag hole 1 of the arc furnace, the moving chute 2 includes a chute 21, the chute 21 is in a polygonal groove shape, the outside of the chute 21 is a chute housing 211, the chute housing 211 is made of metal, a chute liner 212 is disposed inside the chute housing 211, the thickness of the chute liner 212 is uniformly set, the chute liner 212 is made of wear-resistant castable, and the embodiment of the wear-resistant castable is cast stone. The trolley 22 is arranged below the chute 21, the chute 21 is fixed on the trolley 22, the trolley 22 is provided with a certain counterweight for the purpose of stabilizing the operation of the trolley 22, a rail 23 is arranged below the trolley 22, and front limit and rear limit are respectively arranged at two ends of the rail 23.
As shown in fig. 1 and fig. 4, a first punching box 3 is arranged below the movable chute 2, the first punching box 3 is a square shell, one end of the first punching box is provided with a water inlet pipe, the position of the water inlet pipe can be used for water inlet from the bottom end or two sides, the water inlet position is not fixed, the embodiment is used for water inlet at the side end, water outlet holes 311 are formed in one side shell of the first punching box 3, the number of the water outlet holes 311 is multiple, the first punching box 3 is obliquely arranged at a certain angle, and one side of the first punching box 3, which is full of the water outlet holes 311, is connected with a first water slag ditch 4.
As shown in fig. 1 and fig. 5, the first water slag groove 4 is arranged with a certain gradient, and a section of the first water slag groove 4 connected with the first punching box 3 is made of cast iron, the length of the cast iron is 10 meters in this embodiment, the length of the cast iron can be determined according to specific conditions, the first water slag groove 4 is made of wear-resistant castable after the cast iron with the length of 10 meters is removed, and the embodiment of the wear-resistant castable is made of cast stone.
As shown in fig. 1 and fig. 5, the first water slag ditch 4 and the second water slag ditch 5 are communicated and are intersected in a herringbone shape, the second water slag ditch 5 is provided with a certain gradient, the second water slag ditch 5 is a slag ditch with an arc-shaped section, one side of the second water slag ditch 5 is provided with a second punching box 6, the second punching box 6 is similar to the first punching box 3 in structure, parameters are different, and pressure and flow can be determined according to actual conditions. The section of the second water slag ditch 5 provided with the second punching box 6 is made of cast iron, the length of the cast iron is about 10 meters, the length can be determined according to practical conditions, the second water slag ditch 5 is made of cast stone after the cast iron with the length of 10 meters is removed, and the wear-resistant casting material is made of cast stone. The first water slag ditch 4 and the second water slag ditch 5 are communicated and converged to form a first section of slag ditch, the material of the slag ditch at the junction and after being converged is cast stone, and the rear end of the slag ditch is connected with a dewatering device 8 after the first water slag ditch 4 and the second water slag ditch 5 are communicated and converged to form a first section of slag ditch.
As shown in fig. 1 and fig. 6, a tilting mechanism 7 is arranged above the second punching box 6, the tilting mechanism 7 comprises a tilting support 73, the tilting support 73 is fixed with the ground or a platform, one end of the tilting support 73 is hinged with a tilting support arm 71, a slag pot 72 is arranged on the tilting support arm 71, the tilting support arm 71 is in locking connection with the slag pot 72, and the slag pot 72 is detachable and can be locked with the tilting support arm 71 or unlocked from the tilting support arm 71 according to practical conditions. The tilting arm 71 is provided with a driving mechanism, which can be a cylinder driving, an electro-hydraulic push rod or a hydraulic driving, and is driven by the cylinder according to the actual situation, so that the tilting arm 71 is lifted and fallen.
The working principle of the utility model is as follows: as shown in fig. 1 and 2, molten slag flows from the slag hole 1 of the electric arc furnace through the moving chute 2 into the slag runner, when the slag is discharged in a peak value, the moving chute 2 moves along the rail and the tail end of the rail is provided with a limit, when the moving chute 2 moves to a rear limit, one slag receiving end of the moving chute 2 is just positioned under the slag hole 1 of the electric arc furnace, the molten metal slag flowing out of the slag hole 1 of the electric arc furnace flows into the slag pot 72 through the moving chute 2, after the slag in the slag pot 72 reaches a certain capacity, the slag pot 72 moves through the rail, the crown block is hoisted to the tipping support arm 71 and is locked with the tipping support arm 71, the driving cylinder stretches to push the slag pot 72 to pour, molten metal flows out and is subjected to tearing, crushing and granulating through pressurized water sprayed out of the overshoot production tank two 6, and a slag water mixture flows into the slag runner two 5 at the same time and flows into the dewatering device 8 along the gradient for dewatering.
When the movable chute 2 moves to the front limit, molten liquid metal slag flowing out of the slag hole 1 of the electric arc furnace is directly torn and crushed by the impact of the pressurized water in the first punching box 3 and then flows into the slag runner 4 along the water flow, and the slag-water mixture flows into the dewatering device 8 along the gradient of the slag runner 4 for dewatering.
Claims (7)
1. The utility model provides a switchable electric arc furnace steelmaking sediment processing system, includes electric arc furnace slag notch (1), removes chute (2), first (3) of punching case, water dreg ditch (4), tilting mechanism (7) and dewatering device (8), the below of electric arc furnace slag notch (1) is equipped with removes chute (2), the below of removing chute (2) is equipped with water dreg ditch (4), and the inside of water dreg ditch (4) is equipped with first (3) of punching case, its characterized in that: a second water slag ditch (5) is arranged below the slag hole (1) of the electric arc furnace, the first water slag ditch (4) is communicated with the second water slag ditch (5) in a crossing manner, a section of the first water slag ditch is combined with the second water slag ditch (5) after the first water slag ditch is crossed with the second water slag ditch, the second water slag ditch (5) is connected with a dehydration device (8) after the first water slag ditch is crossed with the second water slag ditch, a second punching box (6) is arranged inside one end of the second water slag ditch (5) far away from the dehydration device (8), a tilting mechanism (7) is arranged above the second punching box (6), and a slag pot (72) is arranged in a matching manner by the tilting mechanism (7); the movable chute (2) moves along the extending direction of the first water slag ditch (4), and the movable chute (2) is matched with the first water slag ditch (4) and the slag tank (72) respectively.
2. A switchable electric arc furnace steelmaking slag processing system as set forth in claim 1 wherein: the first water slag ditch (4) and the second water slag ditch (5) are intersected in a herringbone manner and are communicated.
3. A switchable electric arc furnace steelmaking slag processing system as in claim 1 or 2 wherein: the movable chute (2) comprises a chute (21), the chute (21) comprises a chute shell (211), one side of a chute liner (212) is arranged inside the chute shell (211), the thickness of the chute liner (212) is uniformly arranged, a trolley (22) is arranged below the chute (21), and a track (23) is arranged below the trolley (22).
4. A switchable electric arc furnace steelmaking slag processing system as in claim 1 or 2 wherein: the first water dreg groove (4) is obliquely arranged and is of a curve type, one end position of the first water dreg groove (4) close to the movable chute (2) is higher, a cast iron lining is arranged, one end position of the first water dreg groove far away from the movable chute (2) is lower, and a wear-resistant pouring material lining is arranged.
5. A switchable electric arc furnace steelmaking slag processing system as in claim 1 or 2 wherein: the second water slag ditch (5) is obliquely arranged, the part of the second water slag ditch (5) close to the tipping mechanism (7) is higher in position and is a cast iron lining, and the part of the second water slag ditch far away from the tipping mechanism (7) is lower in position and is a wear-resistant casting material lining.
6. A switchable electric arc furnace steelmaking slag processing system as in claim 1 or 2 wherein: the first punching box (3) is positioned in one side of the first slag runner (4) close to the movable chute (2), the first punching box (3) is a polygonal box body (31) and is provided with a water inlet pipe (32), and one side of the box body (31) is provided with a plurality of water outlets (311).
7. A switchable electric arc furnace steelmaking slag processing system as in claim 1 or 2 wherein: the tilting mechanism (7) comprises a tilting arm (71), a slag pot (72) is arranged on the tilting arm (71), and the tilting arm (71) is arranged on a tilting support (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223531297.3U CN219670539U (en) | 2022-12-29 | 2022-12-29 | Switchable electric arc furnace steelmaking slag processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223531297.3U CN219670539U (en) | 2022-12-29 | 2022-12-29 | Switchable electric arc furnace steelmaking slag processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219670539U true CN219670539U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223531297.3U Active CN219670539U (en) | 2022-12-29 | 2022-12-29 | Switchable electric arc furnace steelmaking slag processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219670539U (en) |
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2022
- 2022-12-29 CN CN202223531297.3U patent/CN219670539U/en active Active
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