CN114774597B - Method for treating various steel slag by tipping hot-disintegrating process - Google Patents
Method for treating various steel slag by tipping hot-disintegrating process Download PDFInfo
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- CN114774597B CN114774597B CN202210394979.XA CN202210394979A CN114774597B CN 114774597 B CN114774597 B CN 114774597B CN 202210394979 A CN202210394979 A CN 202210394979A CN 114774597 B CN114774597 B CN 114774597B
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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
- C21B3/08—Cooling slag
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/068—Receptacle features where the slag is treated with a sealed or controlled environment
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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
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The application relates to a method for treating various steel slag by a tipping hot-disintegrating process, which belongs to the technical field of steel slag treatment and comprises a tipping slag-disintegrating stage and a hot-disintegrating stage; the tipping deslagging stage comprises the following steps: conveying liquid molten steel slag and semi-solid steel slag in a steel-making workshop to a steel slag hot-closed treatment workshop, pouring slag by a tilting cart, mixing in a slag bed, and arranging a dust hood above the slag bed to form a closed space with the slag bed; the hot-disintegrating stage comprises the following steps: starting spraying facilities arranged around the slag bed, spraying cold water by the spraying facilities to cool various mixed steel slag, carrying out pulverization reaction on the steel slag when meeting cold water, and repeatedly spraying cold water until the steel slag is pulverized and stabilized; the tilting slag pouring stage and the hot disintegrating stage are used for carrying out cross operation, and the method has the effects of being suitable for various enterprises with different steel slag yields and various steel slag types, guaranteeing the steel slag treatment efficiency and meeting the environmental protection requirements.
Description
Technical Field
The application relates to the technical field of steel slag treatment, in particular to a method for treating various steel slag by a tipping hot-closed process.
Background
Steel slag is a by-product in the steel-making process, and consists of various oxides formed by oxidizing impurities such as silicon, manganese, phosphorus, sulfur and the like in the smelting process and salts generated by the reaction of the oxides and a solvent.
The current rolling crushing-vertical hot closed tank process is a main stream mode for treating steel slag, and the process method is to tilt liquid steel slag of a converter and an electric furnace onto a slag bed, cool the liquid steel slag by a water-beating facility, roll the crushing facility for crushing, and then hoist the crushed solid slag into the vertical hot closed tank for slag closure.
During the steel slag treatment, the inventor finds that the technology can only treat liquid steel slag at present, and semi-solid slag (partially solidified) in a steel-making workshop is: casting residue, refining slag, furnace slag, desulfurization slag and the like, most of the slag is solidified after slag receiving due to small slag quantity generated in each smelting period, the slag is still treated by adopting a pressure crushing-vertical hot closed tank process, and the phenomenon that the rolling crushing facility cannot crush the slag after the slag is tipped over to a slag bed exists, so that the defects of low treatment efficiency and even incapability of treating various mixed slag are generated.
Disclosure of Invention
In order to be suitable for various enterprises with different steel slag yields and various steel slag types, ensure the steel slag treatment efficiency and meet the environmental protection requirement, the application provides a method for treating various steel slag by using a tipping hot-disintegrating process.
The method for treating various steel slag by the tipping hot-disintegrating process adopts the following technical scheme:
a method for treating various steel slag by a tipping hot-disintegrating process comprises a tipping slag-disintegrating stage and a hot-disintegrating stage; the tipping deslagging stage comprises the following steps: conveying liquid molten steel slag and semi-solid steel slag in a steel-making workshop to a steel slag hot-closed treatment workshop, pouring the slag through a slag pot tipping machine, wherein the slag pot tipping machine realizes the effects of layering and uniformly distributing the slag, so that solid slag and liquid slag are mixed in a slag bed, and a dust hood is arranged above the slag bed, so that a closed space is formed by the dust hood and the slag bed; the hot-disintegrating stage comprises the following steps: starting spraying facilities arranged around the slag bed, spraying cold water by the spraying facilities to carry out sultry treatment on various mixed steel slag, carrying out pulverization reaction on the steel slag when meeting the cold water, and repeatedly spraying the cold water until the steel slag is pulverized and is stable; and the overturning slag pouring stage and the hot disintegrating stage are used for carrying out cross operation.
By adopting the technical scheme, after the steel slag is poured into the slag bed, spraying facilities are arranged around the slag bed, hot slag is quenched when meeting water, the surface layer is rapidly cooled, and the surface layer of the steel slag is cracked and cracks are generated due to stress generated by temperature difference; and a large amount of low-pressure steam generated after the cold water is heated by the waste heat of the steel slag is quickly covered on the surface of the steel slag and permeates into cracks, and the steam is quickly reacted with f-CaO in the steel slag to generate Ca (OH) 2, so that the structure of the steel slag is changed, the specific gravity is reduced, and the steel slag is quickly pulverized and cracked due to expansion of the solid phase volume and expansion stress. The process is repeatedly carried out from the outside to the inside until the f-CaO in the steel slag is fully digested and the steel slag is pulverized, so that the steel slag subjected to hot disintegrating treatment under pressure can reach stabilizing treatment and pulverization treatment in a short time. The steel slag in a molten state is transferred to the semi-solid steel slag after being mixed, and the continuous cross operation can be transferred to the semi-solid steel slag at a sufficient temperature, so that the water quenching reaction can be carried out after the temperature of the steel slag is increased, all the steel slag can be fully digested, and the operations can be carried out no matter how much the steel slag is, whether the steel slag is liquid slag of a converter or an electric furnace or cast slag, thereby achieving various enterprises with different steel slag yields and various steel slag types, ensuring the steel slag treatment efficiency and meeting the environmental protection requirement.
Optionally, after slag is discharged from a steelmaking workshop, the slag ladle car conveys the slag pot to a steel slag hot disintegrating treatment room, the casting crane lifts the slag pot to a slag pot tipping machine, and the slag pot tipping machine is used for conveying the slag pot to a designated place to realize slag distribution.
By adopting the technical scheme, the slag ladle car is suitable for different types of steel slag and transports the steel slag, and the casting crane can rapidly hoist and transport the slag ladle to a specified position, so that the working efficiency is improved.
Optionally, the slag pot tipping machine comprises a tipping device, a transmission structure and a tipping frame, wherein the tipping device spans over the slag bed, the tipping frame is positioned above the slag bed and connected to the tipping device, the transmission structure is fixed on the tipping device, the transmission structure drives the tipping frame to horizontally move relative to the slag bed, a slag pot trunnion support is arranged on the tipping device, and the trunnion support is kept motionless when the slag pot rotates.
Through adopting above-mentioned technical scheme, after the slag pot that is equipped with the slag is fixed with tipping device, can realize the rotation of slag pot through tipping device, the slag pot realizes rotating along the trunnion center to empty the slag in the slag pot on the slag bed, and transmission structure can drive tipping device, tipping frame and slag pot and remove with the slag bed relatively, thereby enable the more even dumping of slag on the slag bed, promoted slag treatment effeciency.
Optionally, the maximum tipping angle of the tipping device is not more than 180 °.
Optionally, a plurality of slag storage tanks are arranged in the steel slag hot disintegrating treatment workshop, and the slag storage tanks are arranged adjacent to slag beds.
By adopting the technical scheme, the tilting slag pouring stage and the hot disintegrating stage are subjected to cross operation, and after the steel slag is processed, the processed steel slag is shoveled into the slag storage tank in time, so that convenience is provided for the cross operation, and the steel slag efficiency is improved.
Optionally, a containing groove is formed in the top of the slag bed, a space opened by the containing groove is used for containing steel slag, the slag bed is made of concrete materials, a pebble layer and a slag layer are paved at the bottom of the containing groove from bottom to top, the wall of the containing groove is composed of a heat insulation guard plate and a bracket, no refractory material is filled between the heat insulation guard plate and the containing groove, and a thermal stress reaction space is provided for heating the heat insulation guard plate; and a drain hole is formed in the slag bed, and penetrates through the groove wall of the containing groove to be communicated with the pebble layer.
Through adopting above-mentioned technical scheme, the hole in slag layer and the pebble layer provides the circulation route for the recovery of water resource, and the pebble layer can also play filterable effect simultaneously, exists the space between thermal-insulated backplate and the holding tank, provides reaction space for thermal-insulated backplate's deformation.
Optionally, the pebble layer top surface inclines to set up, and the incline direction is along keeping away from slag by the slope downward setting of pouring place.
By adopting the technical scheme, the steel slag is obliquely arranged, so that the steel slag is convenient to pave and flow, the steel slag fully reacts with cold water, and the cooling speed of the steel slag is also improved.
Optionally, slag bed length direction is along keeping away from slag by the toppling over setting, has seted up the escape canal on the slag bed, and two just be located the holding tank both sides respectively in the escape canal setups up, and the escape canal intercommunication pebble layer is inside with the escape canal.
By adopting the technical scheme, the drainage canal is used for collecting water from a plurality of places and reusing the water after cooling, thereby conforming to the concept of environmental protection and energy saving.
Optionally, spray the facility and include watering spray gun and artifical shower nozzle, watering spray gun and artifical shower nozzle are all fixed on the sediment bed, and watering spray gun is provided with a plurality ofly, and the artifical shower nozzle of every sediment bed is provided with one.
Through adopting above-mentioned technical scheme, artifical shower nozzle can realize artifical control, sprays the region that needs to wash on the follow-up sediment bed, makes sediment bed utilization ratio more abundant.
Optionally, the dust hood is a fixed dust hood or a semi-movable dust hood, the dust hood completely covers the slag bed and the slag pot tipping machine, and a water mist facility is arranged at the top of the dust hood for dust prevention.
Through adopting above-mentioned technical scheme, can produce a large amount of dust when the slag is emptyd, when the slag is handled and finishes, the scarfing cinder process also can produce a large amount of dust, and confined space cooperation dust cage to prevent that the dust from spilling, and confined space can make full use of the heat of slag, produces more vapor, does benefit to the processing of slag.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after liquid steel slag and semi-solid steel slag are mixed through tipping slag distribution, the molten steel slag transmits high temperature to the semi-solid steel slag, and continuous cross operation can be transmitted to the semi-solid steel slag at enough temperature, so that water quenching reaction can occur after the temperature of the semi-solid steel slag rises, and all the steel slag is fully digested; and after deslagging, the deslagging and the steel slag pulverization reaction are directly carried out at the same time, so that the treatment procedures are saved, and the treatment efficiency is improved.
2. The slag bed and the dust hood form a closed space, so that particulate dust, waste gas and the like generated in each working procedure are effectively collected, and the environment-friendly concept is met.
Drawings
FIG. 1 is a schematic plan view of an embodiment of the present application;
FIG. 2 is a schematic illustration of an elevational arrangement of an embodiment of the present application;
FIG. 3 is a schematic illustration of a slag bed plan arrangement;
FIG. 4 is a schematic illustration of a slag bed elevation arrangement;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure, 1, a slag bed; 11. a receiving groove; 12. a pebble layer; 13. a bracket; 14. a heat insulation guard board; 15. a drain hole; 16. a drainage canal; 2. a dust collection cover; 3. a casting crane; 4. a slag pot tipping machine; 41. a tipping device; 42. a transmission structure; 43. tipping the frame; 5. and a slag storage pool.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a method for treating various steel slag by a tipping hot-disintegrating process.
Referring to fig. 1, a method for treating various steel slags by a tilting hot-disintegrating process includes a tilting slag pouring stage and a hot-disintegrating stage, which are alternately performed, so that the temperature of liquid molten steel slags is fully utilized, the temperature of semi-solid steel slags is continuously increased, and the semi-solid steel slags can be pulverized and disintegrated when meeting cold water, thereby achieving the effects of treating various steel slags, being applicable to various enterprises and improving the treatment efficiency of steel slags.
Referring to fig. 1, after slag is discharged from a steel-making plant, whether liquid molten steel slag or semi-solid steel slag, a slag ladle is transported to a steel slag hot-disintegrating treatment plant by a slag ladle car.
Referring to fig. 1 and 2, a ladle crane 3, a slag bed 1 and a slag storage tank 5 are arranged in a steel slag hot disintegrating treatment workshop; in the embodiment, the steel slag hot disintegrating treatment workshop is a strip-shaped workshop, the casting crane 3 slides along the length direction of the steel slag hot disintegrating treatment workshop, a plurality of slag beds 1 are arranged, adjacent slag beds 1 are equidistantly arranged along the sliding direction of the casting crane 3, and two slag storage tanks 5 are arranged and are respectively positioned at the head part and the tail part of the connecting line of all the slag beds 1 in the embodiment; the number of the slag storage tanks 5 is more or less, and the specific number is determined according to the transportation frequency of the steel slag after hot disintegrating.
Referring to fig. 2 and 3, the slag bed 1 is also rectangular, and the longitudinal direction of the slag bed 1 is perpendicular to the sliding direction of the ladle crane 3.
Referring to fig. 4 and 5, the slag bed 1 is formed by pouring reinforced concrete, a containing groove 11 and a drainage canal 16 are formed in the top of the slag bed 1, the containing groove 11 and the drainage canal 16 are formed along the length direction of the slag bed 1, two drainage canals 16 are formed, and adjacent drainage canals 16 are distributed on two sides of the containing groove 11; the pebble layer 12 is paved at the bottom of the accommodating groove 11, the pebble layer 12 is used for paving a slag layer, the heat-insulating guard plate 14 and the bracket 13 are fixed on the wall of the accommodating groove 11, one end of the bracket 13 is fixed with the wall of the accommodating groove 11, the other end of the bracket is fixed with the heat-insulating guard plate 14, no refractory material is filled between the heat-insulating guard plate 14 and the accommodating groove 11, and a thermal stress reaction space is provided for heating the heat-insulating guard plate 14.
Referring to fig. 3, the pebble layer 12 has an inclined surface on the top surface, and the inclined direction is inclined downward along the initial dumping point far away from the slag pot, so that the steel slag can be spread on the pebble layer 12 better.
Referring to fig. 4 and 5, the slag bed 1 is provided with a drain hole 15, the drain hole 15 is horizontally arranged, one end of the drain hole 15 is positioned at the pebble layer 12, and the other end of the drain hole 15 is positioned in the drain channel 16, so that water permeated from the upper part of the pebble layer 12 is better collected, and water resource recycling is realized.
Referring to fig. 3, the slag beds 1 are provided with spray settings, the spray facilities include spray guns and manual spray heads, the spray guns and the manual spray heads are all fixed on the slag beds 1 and are all located on the vertical groove wall of the accommodating groove 11, the spray guns on each slag bed 1 are provided with a plurality of spray guns, but the manual spray heads are provided with one, adjacent spray guns are distributed along the length direction of the slag beds 1 at intervals, each slag bed 1 is provided with a water supply header pipe, the water supply header pipe is provided with an electric butterfly valve and a manual stop valve, and the manual stop valve is arranged for responding to emergency conditions, so that workers can control in time.
Referring to fig. 3 and 4, a slag pot tilting machine 4 is further provided on the slag bed 1, and the slag pot tilting machine 4 is used for receiving a slag pot and conveying the slag pot to a designated place along the slag bed 1 to realize deslagging. The slag ladle tipping machine 4 comprises a tipping device 41, a transmission structure 42 and a tipping frame 43, wherein the tipping device 41 spans over the slag bed 1 like a door-shaped frame, the tipping frame 43 is positioned right above the slag bed 1 and fixedly connected with the tipping device 41, the tipping frame 43 is used for receiving the slag ladle, and the tipping device 41 drives the slag ladle to overturn, and the overturning angle is not more than 180 degrees.
Referring to fig. 3 and 4, there is a distance between the receiving tank 11 and the drain 16, and a drive structure 42 is fixed to the end of the tipping device 41 near the slag bed 1, the drive structure 42 being capable of carrying the tipping device 41 for movement along the length of the slag bed 1. In this embodiment, rails are laid on the top of the slag bed 1, one rail is arranged on each side of each drainage channel 16, the rails are laid along the length direction of the slag bed 1, and a single transmission structure 42 is placed on the rails on each side of the single drainage channel 16, so that the slag pot tipping machine 4 can move along the length of the slag bed 1. In this embodiment, the power devices in the slag ladle tipping machine 4 all adopt motors to provide power, and other power devices can also be adopted, so that the functions brought by the slag ladle tipping machine 4 can be realized.
Referring to fig. 4, a dust hood 2 is provided on each slag bed 1, the dust hood 2 is divided into two forms, namely a completely fixed dust hood 2 and a semi-movable dust hood 2, and the corresponding forms are selected according to the factory space; the dust hood 2 is covered outside the track, and a water mist facility is arranged at the top of the dust hood 2, namely a whole system capable of spraying water mist exists. The dust hood 2 is a steel skeleton, and in this embodiment, stainless steel plates are laid on the inner side of the steel skeleton. The dust collecting cover 2 plays a role in dust collection during deslagging, plays a role in steam maintenance and collection during slag disintegrating, and can also reduce overflow of dust during slag discharging.
The implementation principle of the embodiment of the application is as follows: after slag is discharged from a steel-making workshop, a slag tank truck is used for conveying the slag tank to a steel slag hot-closed treatment workshop, a casting starter is used for lifting the slag tank, the slag tank is lifted to a tilting frame 43, steel slag in the slag tank is poured into a slag bed 1 by utilizing a transmission structure 42 and a tilting device 41, no matter liquid state or semi-solid state is fully mixed, and the temperature is raised by utilizing liquid high Wen Duiban solid steel slag, so that the semi-solid steel slag can also be subjected to pulverization reaction with cold water; spraying cold water to cool the steel slag; the tipping slag pouring stage and the slag disintegrating stage are synchronously and alternately carried out continuously; after the slag disintegrating process is completed, the steel slag is transported out through a forklift.
For the sake of understanding, the experimental data will be further described, and it is assumed that a certain plant has 2 200t converters, the annual production of ordinary carbon steel is 500 ten thousand tons, the slag yield is 120kg per ton of steel, the other casting residues, refining residues and the like are 20kg per ton of steel, the annual production of liquid steel slag is about 60 ten thousand tons, the semi-solid slag yield is about 10 ten thousand tons, and the solid slag yield of some special steel smelting plants is relatively high.
2 converters with 200t are proposed to adopt a one-to-one slag operation system, the daily slag production amount is 80, and the slag amount of each tank is about 24t; the solid slag is tipped over and deslagging time is about 8 hours, the deslagging process and the hot disintegrating process are operated in a crossing way, and the hot disintegrating period is about 8-12 hours according to different slag amounts and types. The solid steel slag in the steel-making workshop can be mixed with the liquid steel slag for hot disintegrating, all the steel slag can be fully digested, and meanwhile, the procedures of tipping slag pouring, hot disintegrating and slag cleaning are all completed in the dust collecting cover 2, so that the particulate dust, waste gas and the like generated in each procedure are effectively collected. The dust hood 2 selected in the tipping hot-closed process can be in the same form as the dust hood 2 in the conventional rolling crushing-vertical hot-closed tank process, the dust removal effect of the process can be simulated, the dust removal by adopting a wet method and wet electricity is adopted, the emission concentration is less than or equal to 10mg/Nm3, and the ultra-low emission requirement is met.
The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (5)
1. A method for treating various steel slag by a tipping hot disintegrating process is characterized in that: comprises a tipping slag pouring stage and a hot disintegrating stage; the tipping deslagging stage comprises the following steps: conveying liquid molten steel slag and semi-solid steel slag in a steel-making workshop to a steel slag hot-closed treatment workshop, pouring the slag through a slag pot tipping machine (4), wherein the slag pot tipping machine (4) realizes the effects of layering and uniformly distributing the slag, so that solid slag and liquid slag are mixed in a slag bed (1), a dust hood (2) is arranged above the slag bed (1), and the dust hood (2) and the slag bed (1) form a closed space; the hot-disintegrating stage comprises the following steps: starting spraying facilities arranged around the slag bed (1), spraying cold water by the spraying facilities to carry out stuffy treatment on various mixed steel slag, carrying out pulverization reaction on the steel slag when meeting the cold water, and repeatedly spraying the cold water until the steel slag is pulverized and is stable; the overturning slag pouring stage and the hot disintegrating stage are subjected to cross operation;
a slag storage pool (5) is arranged in the steel slag hot disintegrating treatment workshop, a plurality of slag storage pools (5) are arranged, and the slag storage pools (5) are arranged adjacent to slag beds (1);
the top of the slag bed (1) is provided with a containing groove (11), a space opened by the containing groove (11) is used for containing steel slag, the slag bed (1) is made of concrete materials, a pebble layer (12) and a slag layer are paved at the bottom of the containing groove (11) from bottom to top, the wall of the containing groove (11) is composed of a heat insulation guard plate (14) and a bracket (13), no refractory material is filled between the heat insulation guard plate (14) and the containing groove, and a thermal stress reaction space is provided for heating the heat insulation guard plate (14); a drain hole (15) is formed in the slag bed (1), and the drain hole (15) penetrates through the wall of the accommodating groove (11) and is communicated with the pebble layer (12);
the top surface of the pebble layer (12) is obliquely arranged, and the oblique direction is obliquely downwards arranged away from the position where the steel slag is poured;
the slag bed (1) is arranged along the length direction far away from the position where the steel slag is poured, the slag bed (1) is provided with drainage channels (16), two drainage channels (16) are arranged and are respectively positioned at two sides of the accommodating groove (11), and the drainage holes (15) are communicated with the pebble layer (12) and the inside of the drainage channels (16);
the dust hood (2) is a fixed dust hood (2) or a semi-movable dust hood (2), the dust hood (2) completely covers the slag bed (1) and the slag pot tipping machine (4), and a water mist facility is arranged at the top of the dust hood (2) and used for dust prevention.
2. The method for treating various types of steel slag by using the tipping hot-disintegrating process according to claim 1, which is characterized in that: after slag is discharged from a steel-making workshop, the slag tank truck conveys the slag pot to a steel slag hot-disintegrating treatment room, the casting crane (3) lifts the slag pot to a slag pot tipping machine (4), and the slag pot tipping machine (4) is used for conveying the slag pot to a designated place to realize slag distribution.
3. The method for treating various types of steel slag by using the tipping hot-disintegrating process according to claim 2, which is characterized in that: the slag ladle tipping machine (4) comprises a tipping device (41), a transmission structure (42) and a tipping frame (43), wherein the tipping device (41) spans over the slag bed (1), the tipping frame (43) is positioned above the slag bed (1) and connected to the tipping device (41), the transmission structure (42) is fixed on the tipping device (41), the transmission structure (42) drives the tipping frame (43) to horizontally move relative to the slag bed (1), a slag ladle trunnion support is arranged on the tipping device, and the trunnion support is kept motionless when the slag ladle rotates.
4. A method for treating various types of steel slag by a tipping hot-dipping process according to claim 3, which is characterized in that: the maximum tilting angle of the tilting device (41) is not more than 180 degrees.
5. The method for treating various types of steel slag by using the tipping hot-disintegrating process according to claim 1, which is characterized in that: the spraying facility comprises a spraying spray gun and manual spray heads, wherein the spraying spray gun and the manual spray heads are fixed on the slag beds (1), the spraying spray gun is provided with a plurality of spraying spray guns, and each manual spray head of each slag bed (1) is provided with one spraying spray gun.
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| CN113621743A (en) * | 2020-05-06 | 2021-11-09 | 宝山钢铁股份有限公司 | Multiphase steel slag high-efficiency treatment method and device |
| CN112941254A (en) * | 2021-03-19 | 2021-06-11 | 中冶节能环保有限责任公司 | Solid steel slag quenching treatment device and method |
| CN113061674A (en) * | 2021-04-17 | 2021-07-02 | 北京清皓源技术有限公司 | Metallurgical slag treatment method and system |
| CN215628047U (en) * | 2021-08-06 | 2022-01-25 | 中钢(石家庄)工程技术有限公司 | Normal-pressure hot-disintegrating steel slag and waste heat recovery system by reverse water immersion method |
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