CN110643757B - Processing method of thermal state casting slag processing system - Google Patents
Processing method of thermal state casting slag processing system Download PDFInfo
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- CN110643757B CN110643757B CN201810673239.3A CN201810673239A CN110643757B CN 110643757 B CN110643757 B CN 110643757B CN 201810673239 A CN201810673239 A CN 201810673239A CN 110643757 B CN110643757 B CN 110643757B
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- 239000002893 slag Substances 0.000 title claims abstract description 90
- 238000005266 casting Methods 0.000 title claims abstract description 80
- 238000003672 processing method Methods 0.000 title claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 97
- 239000010959 steel Substances 0.000 claims abstract description 97
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 8
- 239000011819 refractory material Substances 0.000 claims description 2
- 238000005201 scrubbing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000008569 process Effects 0.000 description 18
- 238000005406 washing Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 9
- 239000002912 waste gas Substances 0.000 description 9
- 239000008187 granular material Substances 0.000 description 8
- 239000013049 sediment Substances 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010409 ironing Methods 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a thermal state casting residue treatment system, which comprises a heating device, and a tundish, a roller device and a conveyor which are sequentially arranged, wherein the tundish is used for receiving casting residue in a steel ladle and pouring the casting residue into the roller device; the heating device is used for heating the casting residue in the tundish; the roller device is used for processing the casting residues into granular slag and is provided with a discharge chute, and the granular slag slides onto the conveyor through the discharge chute; the conveyer is used for conveying the granular slag. The hot-state casting residue treatment system disclosed by the invention can realize quick slag pouring of the steel ladle, avoid weight increment of the steel ladle, control feeding of the roller device, effectively reduce the phenomenon that steel water in the roller is condensed into large cold steel and realize on-line treatment of hot-state casting residue.
Description
Technical Field
The invention relates to the technical field of metallurgical slag treatment, in particular to a thermal state casting slag treatment system.
Background
The casting residue is a generic name of steel slag (slag) and residual molten steel in a ladle after steel casting, and is also called ladle residue. Generally, 1 to 3 tons of molten steel or more remains in a ladle at the end of casting, and the temperatures of steel slag and molten steel are about 1500 ℃ and 1550 ℃ respectively. The cast steel realizes continuous casting, but the production of casting residues is discontinuous, and one casting residue is formed for about half an hour. Except that a small amount of casting residues are directly returned to the production process for thermal recycling in a small number of steel mills, most of the casting residues are cooled. Because the metal content in the casting residue is high, the solidifying point of the residual molten steel is higher, and the cooling solidification is easy. When the casting residue is poured out of the ladle, the casting residue and the ladle are often mixed with each other, a large residue lump is formed in a received slag pot or a sand pit, and the separation and the recycling are very difficult.
In view of the characteristics of small amount, dispersion and high metal content of the casting residue, the final treatment still stays in the following processes at present:
(1) carrying out pit type hot splashing: directly hot pouring the high-temperature molten slag after steel casting into a sand pit, and naturally cooling. Because the slag and the molten steel are mixed to easily form a large slag-steel lump, gas cutting and hammering are needed during subsequent treatment, the site is large, the labor intensity is high, and the pollution is serious.
(2) Preparing a slag tank with a grid: to solve the problem of lump slag and steel lump, chinese patents CN1752217A and CN2465840Y disclose a method of placing a grid in the slag ladle, which divides the effective space of the slag ladle into a plurality of small spaces by grids with different shapes. When the slag is poured into the slag pot, the slag is automatically separated into a plurality of small blocks by the grid, thereby avoiding the occurrence of large steel lumps and improving the slag treatment efficiency. But the manufacturing and filling of the grating are time-consuming and expensive; subsequent crushing and magnetic separation are still difficult and complicated, and the grade of recycled slag steel is low.
(3) The air crushing process comprises the following steps: chinese patent CN102605115A provides a process for breaking the high-temperature molten casting residue into small steel balls and small slag particles by pneumatic force. In view of the characteristic that the casting residues are easy to solidify, the process is provided with the liquefaction heating device, the casting residues after steel casting are poured into the liquefaction heating device firstly, and then the liquefaction heating device is electrified to heat, so that good fluidity of the casting residues is ensured, and the flow is controllable. Molten casting slag uniformly flows out from the liquefying and heating device, after the width and flow rate of a stream are adjusted by a middle launder, compressed gas sprayed by a pneumatic granulator strikes and breaks the molten slag into small droplets from the side surface, and the small droplets are forcibly cooled and solidified into steel particles and small slag balls by a gas-water mixture sprayed by a cooling control atomizer in the flying process, so that the cooling and breaking functions of the casting slag are realized. The process has high requirement on the fluidity of the slag, the noise in the gas crushing process is high, and the dust entrained by the gas needs to be collected and treated.
(4) A roller process: patent CN101545018A discloses a technical solution for treating casting residue by using a roller device. The principle that the metal ball has high heat conductivity coefficient and large heat transfer area, and the steel ball rolling at high speed has impact crushing effect is utilized to realize quick cooling and crushing of molten steel and steel slag, and then the metal ball and granular slag are cooled by process water to realize roller method treatment of the casting residues. The casting residue with molten steel is treated by the roller device, the slow slag feeding and controllable flow rate are required, otherwise, the large cold steel blocks in the roller have large cold steel amount and are aggregated in the roller. When the ladle is turned over, the molten steel needs to be turned over quickly due to small superheat degree of the molten steel, casting residues are poured completely within 1-2 minutes, otherwise, the molten steel is condensed due to temperature reduction of the molten steel, particularly, the molten steel is condensed at the edge opening of the ladle, so that the weight of the ladle is increased quickly, and normal continuous casting production is influenced. Therefore, the processing capacity of the roller device is not matched with the ladle deslagging rhythm seriously by adopting the existing roller process.
Disclosure of Invention
In order to solve the problems, the invention provides a thermal state casting slag treatment system, which realizes effective treatment of thermal state casting slag, can pour slag quickly in a steel ladle, and avoids weight increase of the steel ladle.
In order to achieve the above object, the thermal state casting residue treatment system of the present invention comprises a heating device, and a tundish, a roller device and a conveyor, which are arranged in sequence, wherein the tundish is used for receiving casting residue in a steel ladle and pouring the casting residue into the roller device; the heating device is used for heating the casting residues in the tundish; the roller device is used for processing the casting residues into granular slag and is provided with a discharge chute, and the granular slag slides onto the conveyor through the discharge chute; the conveyor is used for conveying the granular slag.
Preferably, the thermal state casting residue treatment system further comprises a washing tower, wherein a gas collecting device used for collecting waste gas generated in the drum device is arranged on the drum device, the gas collecting device is connected with the washing tower through a flue, and the washing tower is used for washing the waste gas.
Preferably, the tundish is rotatably mounted on a bracket, and a tipping mechanism for driving the tundish to turn is arranged on the bracket.
Preferably, the tipping mechanism is a hydraulic cylinder.
Preferably, the heating device is a medium frequency induction heater.
Preferably, the heating device is an electrode or an oxygen lance.
The hot-state casting slag treatment system disclosed by the invention can realize quick deslagging of the steel ladle, avoid weight increase of the steel ladle, control feeding of the roller device, effectively reduce the phenomenon that steel water in the roller is solidified into massive cold steel, and realize online treatment of hot-state casting slag.
Drawings
FIG. 1 is a plant configuration diagram of a hot-state cast slag treatment system according to the present invention;
FIG. 2 is a schematic view of the tundish heating;
FIG. 3 is a schematic view showing rapid deslagging of a ladle and receiving slag in a tundish;
FIG. 4 is a schematic view showing the pouring of the tundish to the roller assembly.
The equipment or material names represented by the icon signs are respectively as follows:
1-support, 2-tipping mechanism, 3-tundish holding mechanism, 4-electrode or oxygen lance, 5-electrode or oxygen lance supporting and rotating mechanism, 6-tundish, 7-intermediate frequency induction heater, 8-roller device feeding port, 9-spray cooling mechanism, 10-roller device, 11-roller supporting and rotating mechanism, 12-roller outer barrel, 13-grate bar, 14-steel ball, 15-roller inner barrel end plate, 16-roller transmission mechanism, 17-discharging chute, 18-conveyor, 19-vibrating screen, 20-large granule slag hopper, 21-bucket elevator, 22-vibrating feeder, 23-iron remover, 24A-tailing bin, 24B-granule steel bin, 25-truck, 26-gas collection device, 27-washing tower, 28-washing system, 29-exhaust fan, 30-chimney, 31-casting residue, 32-molten steel, 33-crane and 34-ladle.
Detailed Description
The following describes in detail a specific embodiment of the present invention with reference to the drawings.
As shown in fig. 1 to 4, the hot-state casting residue treatment system of the present invention comprises a heating device, and a tundish 6, a roller device 10 and a conveyor 18, which are arranged in sequence, wherein the tundish 6 is used for receiving casting residue 31 in a ladle 34, and can pour the casting residue 31 into the roller device 10; the heating device is used for heating the casting residue 31 in the tundish; the drum device 10 is used for processing the casting residue 31 into granular slag, the drum device 10 is provided with a discharge chute 17, and the granular slag slides to the conveyor 18 through the discharge chute 17; the conveyor 18 is used to transport the granulated slag to a designated location or to equipment for further processing. The tundish 6 is arranged at one side of the feeding hole 8 of the roller device 10, and the conveyor 18 is arranged at one side of the discharging chute 17 of the roller device 10.
The hot-state casting residue treatment system further comprises a washing tower 27, wherein a gas collecting device 26 used for collecting waste gas generated in the roller device 10 is arranged on the roller device 10, the gas collecting device 26 is connected with the washing tower 27 through a flue, and the washing tower 27 is used for washing the waste gas. The waste gas generated in the process of treating the casting residue 31 by the roller device 10 is mainly low-temperature unsaturated water vapor, the waste gas is collected and enters the washing tower 27 through the flue to be washed and dedusted, and the standard-reaching gas after washing and purification is extracted by the exhaust fan 29 and is intensively discharged through the chimney 30.
The tundish 6 is rotatably arranged on a bracket 1, and a tipping mechanism 2 for driving the tundish 6 to tip is arranged on the bracket 1. The tipping mechanism 2 can be a hydraulic cylinder, and the tundish 6 is driven to turn over by extending a piston rod of the hydraulic cylinder, so that the materials are poured to the feeding hole 8 of the roller device 10. Trunnions are arranged on two sides of the tundish 6, and the trunnions are matched with the tundish holding mechanism 3, so that the tundish 6 is rotatably arranged on the support 1. The tundish 6 is turned over within a certain angle, and the casting residue 31 in the tundish 6 is poured into the feed inlet 8 of the roller device 10 in a controllable manner.
The thermal state casting residue treatment system can realize the rapid slag pouring of the steel ladle 34. After the ladle 34 is cast, the ladle 34 is transferred to the upper part of the tundish 6 by the travelling crane 33, the ladle 34 is quickly tilted to pour casting residues 31 (including molten steel 32) in the ladle into the tundish 6, and the empty ladle 34 can continue to receive steel operation. Because the slag of the casting residue 31 floats on the upper surface of the molten steel 32, when the tundish 6 is tipped, the slag flows out firstly, and the molten steel flows out later, the tipping speed of the tundish 6, namely the turning speed and the turning angle, can be controlled according to actual conditions, the slag feeding speed is fast when the slag of the casting residue 31 is poured, and the speed is slow when the molten steel is poured, so that the roller device 10 can be ensured to normally operate, the casting residue can be well cooled and crushed, and the molten steel can be well dispersed, cooled and crushed into small steel particles. The tilting mechanism 2 can control the rotating speed and the rotating angle of the turning of the tundish 6.
In addition, in order to maintain the tundish 6 at a certain temperature and prevent the service life from being influenced by severe temperature fluctuation, the tundish 6 is not required to be emptied during normal use, and a certain amount of residual steel and slag are reserved inside the tundish. The tundish 6 is lined with a refractory material.
The tundish 6 receiving the casting slag 31 is subjected to necessary rapid heat compensation by the heating device as required. Because the density of the molten steel is far greater than that of the slag of the casting residue 31 and the molten steel is naturally deposited at the lower part of the tundish 6, the molten steel is easy to stir the upper layer slag by rolling and stirring during heat supplement so as to improve the heat transfer efficiency, and the method not only is convenient and rapid in heat supplement, but also has good heat preservation effect. The heating device can be a medium-frequency induction heater 7, and also can be an electrode or an oxygen lance 4. The medium-frequency induction heater 7 mainly inductively heats molten steel through an induction magnetic field, the temperature rise is fast, the molten pool is stirred violently, and an induction coil of the medium-frequency induction heater 7 is arranged around the outer surface of the tundish 6; the electrode 4 carries out electric arc heat compensation through electrode discharge, the lower end part of the electrode 4 needs to be inserted below the casting residue 31 and near the upper surface of the molten steel 32, and the electric arc heat compensation is carried out quickly through pulling the electric arc; the oxygen lance 4 carries out oxygen blowing heat supplement, and the oxygen blowing heat supplement carries out heat release through the reaction of oxygen and partial molten steel, so that a small amount of metal is consumed. After the temperature of the casting residue 31 reaches the set requirement (such as temperature rise of 30-50 ℃), stopping heat supplementing, and moving the electrode or the oxygen lance 4 away when necessary to prepare for tipping and deslagging. The electrode or oxygen lance 4 is arranged on a supporting and rotating mechanism 5 of the electrode or oxygen lance. Both the electrode or lance 4 and the support rotation mechanism 5 of the electrode or lance can be moved away from the tundish 6.
After the temperature of the casting slag 31 reaches the set requirement, the casting slag 31 in the tundish 6 is controllably poured into the feeding hole 6 of the roller device 10 by starting the tilting mechanism 2, the pouring amount can be set according to the processing capacity of the roller device 10, and the pouring speed can be increased firstly and then decreased secondly after pouring the steel slag and then the molten steel. The casting slag 31 poured into the drum device 10 can be controlled by controlling the tilting mechanism 2.
The inner cylinder body of the roller device 10 comprises a feeding hole 8, grates 13 surrounding the circumference and an end plate 15 of the inner cylinder body of the roller, a certain number of steel balls 14 with certain size are contained in the inner cylinder body, and a gap of 70-90mm is designed between every two grates for discharging processed granular slag; the outer cylinder body 12 and the inner cylinder body are coaxially and fixedly connected together and rotate along an inclined axis under the combined action of the supporting mechanism 11 (riding wheel and riding ring) and the transmission mechanism 16 (large gear ring, small gear ring, speed reducer and motor). The axis of the roller inclines by 5-30 degrees, so that the crushed materials can conveniently slide down under the action of gravity. The rear part of the outer cylinder body is provided with a downward inclined discharging chute 17 and a gas collecting device 26. The gas collecting device 26 is connected with the washing tower 27 through a flue, the waste gas generated in the slag treatment process is washed by the washing system 28, the clean waste gas is discharged into the atmosphere through the exhaust fan 29 and the chimney 30, the centralized purification and standard discharge of the waste gas in the slag treatment process are realized, and the water used by the washing system 28 in the washing tower 27 is discharged from the bottom of the washing tower 27 and recycled. The casting residue 31 in the tundish 6 is poured onto the upper surface of the steel balls 14 in the roller device 10, and for safety reasons, the area is a dry area, and no process water is sprayed. The casting residues 31 are quickly sunk into the gaps of the rolling steel balls 14 after entering the roller, and are quickly cooled and crushed by the steel balls. Then, along with the rotation of the roller, the steel ball drives the solid granular slag to enter the water cooling area to be cooled and heat exchanged again by the process cooling water sprayed by the spray cooling mechanism 9, and the steel ball 14 is driven by the rotating roller body to return to the slag inlet area to participate in cooling and heat exchanging of the casting residue 31 again after being cooled. When the crushed granular slag is smaller than the clearance of the grate 13, the granular slag is discharged from the inner cylinder body of the roller, enters the outer cylinder body and slides down to the conveyor 18 through the discharging chute 17. The roller device 10 further comprises a roller supporting and rotating mechanism 11 and a roller transmission mechanism 16. The structure of the drum device 10 and the washing tower 27 is conventional and will not be described in detail herein.
A conveyor 18 is provided at the rear of the drum assembly 10 for transporting the particulate residue treated by the drum assembly 10 to a designated location or to further processing equipment. In this embodiment, still include the sediment steel separator, the sediment steel separator is including shale shaker 19, bucket elevator 21, vibrating feeder 22 and the tailings feed bin 24A that sets gradually, still includes de-ironing separator 23 and pellet steel feed bin 24B, conveyer 18 carries the granule sediment extremely shale shaker 19 screens, and the large granule sediment quilt 19 sieves out and gets into large granule sediment hopper 20, and the tiny particle sediment is carried by bucket elevator 21 and is sent to vibrating feeder 22 on, is carried into in the tailings feed bin 24A by vibrating feeder 22, and the in-process that the tiny particle sediment was carried on vibrating feeder 22, pellet steel is by de-ironing separator 23 suction, send into pellet steel feed bin 24B in, realizes autofilter and magnetic separation among the material transportation process. The steel granules in the steel granule storage bin 24B can be sent to the steel making process by a truck 25 for production and utilization, and the tailings (granules) in the tailings storage bin 24A are sent to a user by the truck 25 for resource utilization. Because the density and the solidification point of the molten steel are greatly different from those of the molten slag, and the impact and the collision of the steel balls are added, the molten steel and the casting residues are fully separated in the roller, the granular steel after the molten steel is solidified has high purity, and the slag steel separator can well separate the granular slag and the granular steel (commonly called high-grade slag steel) and respectively enter respective temporary storage bins, the granular steel is returned to the steelmaking process for recycling, and the granular slag is sent to users by trucks for resource utilization.
According to the thermal-state casting slag treatment system, the tundish 6 receives the steel ladle 34 to pour the slag quickly and pours the reheated slag into the roller device 10, so that the contradiction between the quick slag pouring of the steel ladle and the slag feeding of the roller device in the existing roller slag removal process is effectively solved, the casting slag 31 of the tundish 6 can be properly reheated by the heating device, the fluidity of the slag is ensured, the phenomena of slag sticking at a roller feeding hole 8 and large cold steel blocks condensed in the roller are avoided, the frequency of steel cleaning and maintenance during roller shutdown is low, the labor intensity is greatly reduced, the working efficiency of the device is high, and the treatment cost is low. The slag does not fall to the ground in the whole treatment process, the slag and the steel are automatically separated, the flow is short, the occupied area is small, the automation level is high, and the environment is friendly.
As described above, exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings. It should be understood that the intention is not to restrict or in any way limit the scope of the appended claims to such detail. Equivalent or similar changes in the structure and features of the exemplary embodiments may be made without departing from the spirit and scope of the invention, which shall also fall within the scope of the protection defined by the claims appended hereto.
Claims (5)
1. A processing method of a thermal state casting residue processing system is characterized in that the thermal state casting residue processing system comprises a heating device, a tundish, a roller device and a conveyor which are arranged in sequence,
the tundish is used for receiving casting residues in the ladle and pouring the casting residues into the roller device;
the heating device is used for heating the casting residues in the tundish;
the roller device is used for processing the casting residues into granular slag and is provided with a discharge chute, and the granular slag slides onto the conveyor through the discharge chute;
the conveyor is used for conveying the granular slag; wherein,
the tundish is rotatably arranged on a bracket, and a tipping mechanism for driving the tundish to turn is arranged on the bracket; trunnions are arranged on two sides of the tundish, and the trunnions are matched with the tundish holding mechanism to rotatably install the tundish on the bracket;
the processing method comprises the following steps: the rapid deslagging of the ladle can be realized; after the casting of the steel ladle is finished, the steel ladle is transferred to the upper part of the tundish by a travelling crane, the steel ladle is quickly tilted to pour the casting residues containing molten steel into the tundish, and the empty steel ladle continues to be connected with steel; because the slag of the casting residues floats on the upper surface of the molten steel, when the tundish is tipped, the slag flows out firstly, the molten steel flows out later, the tipping speed of the tundish is controlled, the rotating speed and the rotating angle of the turning are controlled, the slag feeding speed is fast when the slag of the casting residues is poured, the speed is slow when the molten steel is poured, and the normal operation of the roller device is ensured; the tipping mechanism can control the rotating speed and the rotating angle of the turning of the tundish;
The processing method further comprises the following steps: when in normal use, the tundish is not required to be emptied, and a certain amount of residual steel and slag are reserved inside the tundish; the lining of the tundish is made of a refractory material.
2. The method of claim 1, further comprising a scrubber, wherein the drum device is provided with a gas collecting device for collecting the exhaust gas generated in the drum device, the gas collecting device is connected to the scrubber through a flue, and the scrubber is used for scrubbing the exhaust gas.
3. The method of claim 1, wherein the tilting mechanism is a hydraulic cylinder.
4. The method of claim 1, wherein the heating device is a medium frequency induction heater.
5. The method of claim 1, wherein the heating device is an electrode or an oxygen lance.
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| CN201810673239.3A CN110643757B (en) | 2018-06-26 | 2018-06-26 | Processing method of thermal state casting slag processing system |
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| CN113414203B (en) * | 2021-06-30 | 2023-08-04 | 沈冶重型装备(沈阳)有限责任公司 | Totally enclosed aluminum ladle cleaning machine |
| CN114231674A (en) * | 2021-11-26 | 2022-03-25 | 凉山瑞京环保资源开发有限公司 | Liquid casting residue treatment process |
| CN114249539A (en) * | 2021-11-26 | 2022-03-29 | 凉山瑞京环保资源开发有限公司 | Method for treating fluid liquid casting slag |
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