CN114774597A - Method for treating various steel slags by tipping hot smoldering process - Google Patents
Method for treating various steel slags by tipping hot smoldering process Download PDFInfo
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- CN114774597A CN114774597A CN202210394979.XA CN202210394979A CN114774597A CN 114774597 A CN114774597 A CN 114774597A CN 202210394979 A CN202210394979 A CN 202210394979A CN 114774597 A CN114774597 A CN 114774597A
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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
- 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 application relates to a method for treating various steel slags by a tipping hot stuffiness process, which belongs to the technical field of steel slag treatment and comprises a tipping deslagging stage and a hot stuffiness stage; the tipping and 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 by a tipping vehicle, mixing the slag in a slag bed, arranging a dust cage above the slag bed, and forming a closed space by the dust cage and the slag bed; the hot stuffy phase comprises: starting a spraying facility arranged around the slag bed, spraying cold water by the spraying facility to cool various mixed steel slag, carrying out pulverization reaction on the steel slag when the steel slag meets the cold water, and repeatedly spraying the cold water until the steel slag is pulverized and stabilized; the slag dumping stage and the hot smoldering stage are crossed to operate, and the slag dumping stage and the hot smoldering stage are 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.
Description
Technical Field
The application relates to the technical field of steel slag treatment, in particular to a method for treating various steel slags by a tipping hot smoldering process.
Background
The steel slag is a by-product in the steel-making process, and is composed 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.
At present, the steel slag is treated by a rolling crushing-vertical hot stuffy tank process in a mainstream mode, and the process method comprises the steps of tipping liquid steel slag of a converter and an electric furnace onto a slag bed, cooling by a watering facility, crushing by a rolling crushing facility, and hoisting the crushed solid slag into a vertical hot stuffy tank for stuffy slag.
During the treatment of steel slag, the inventors have found that this process is currently only capable of treating liquid steel slag, semi-solid slag (meaning partially solidified) in a steel plant: casting residue, refining slag, furnace slag, desulphurization slag and the like, wherein the slag amount generated in each smelting period is small, so most of slag after slag receiving is solidified, the steel slag is still processed by adopting a crushing-vertical hot stuffy tank process, and after the steel slag is overturned to a slag bed, a phenomenon that a rolling crushing facility cannot crush the steel slag exists, so that the processing efficiency of various mixed steel slag is low, and even the mixed steel slag cannot be processed.
Disclosure of Invention
In order to be suitable for various enterprises with different steel slag yields and various types of steel slag, ensure the steel slag treatment efficiency and meet the environmental protection requirement, the application provides the method for treating various steel slag by the tipping hot smoldering process.
The method for treating various steel slags by using the tipping hot-smoldering process adopts the following technical scheme:
a method for processing various steel slags by a tipping hot stuffiness process comprises a tipping slag pouring stage and a hot stuffiness stage; the tipping and deslagging stage comprises the following steps: liquid molten steel slag and semi-solid steel slag in a steel-making workshop are conveyed to a steel slag hot closed treatment workshop, and are subjected to slag dumping through a slag ladle tilting machine, the effect of steel slag layering and uniform slag distribution is realized through the slag ladle tilting machine, so that the solid slag and the liquid slag are mixed in a slag bed, a dust hood is arranged above the slag bed, and a closed space is formed by the dust hood and the slag bed; the hot stuffy phase comprises: starting a spraying facility arranged around the slag bed, spraying cold water by the spraying facility to carry out sultry treatment on various mixed steel slag, carrying out pulverization reaction on the steel slag when the steel slag meets the cold water, and repeatedly spraying the cold water until the steel slag is stabilized after pulverization; and performing cross operation in a tipping slag pouring stage and a hot stuffy stage.
By adopting the technical scheme, after the steel slag is poured into the slag bed, spraying facilities are arranged around the slag bed and opened, the hot slag is rapidly cooled when meeting water, the surface layer is rapidly cooled, and the stress generated by temperature difference enables the surface layer of the steel slag to be cracked and generate cracks; a large amount of low-pressure steam generated after cold water is heated by the waste heat of the steel slag quickly covers the surface of the steel slag and permeates into cracks to quickly react with f-CaO in the steel slag to generate Ca (OH)2, the structure of the Ca (OH)2 is changed, the specific gravity is reduced, and the steel slag is quickly pulverized and cracked due to expansion caused by the increase of the volume of a solid phase and expansion stress. The above processes are repeated from the surface 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 the hot pressing and disintegrating treatment can be subjected to the stabilizing treatment and the pulverizing treatment in a short time. After hot smoldering, the steel slag is pulverized, slag and iron are separated, f-CaO and f-MgO in the steel slag are digested, the volume expansion of the f-CaO and the f-MgO when meeting water is eliminated, the phenomenon that the stability of the steel slag is unqualified when the steel slag is applied is avoided, after the liquid steel slag and the semisolid steel slag are mixed, the molten steel slag transmits high temperature to the semisolid steel slag, continuous cross operation can transmit enough temperature to the semisolid steel slag, and after the temperature of the semisolid steel slag is increased, quenching and water-meeting reaction can also occur, all the steel slag can be fully digested, no matter how much the steel slag is, no matter the liquid slag of a converter and an electric furnace, or cast residual slag can be subjected to the operation, so that the steel slag treatment efficiency is ensured, and the steel slag treatment method meets the environmental protection requirements.
Optionally, after slag is discharged from the steelmaking workshop, the slag tank is transported to the steel slag hot-closed treatment room by the slag tank car, the slag tank is hoisted to the slag tank tilting machine by the casting crane, and the slag tank tilting machine is used for transporting the slag tank to a specified place to realize slag distribution.
By adopting the technical scheme, the slag tank car is suitable for different types of steel slag and transports the steel slag, and the casting crane can rapidly lift and transport the slag tank to a specified position, so that the working efficiency is improved.
Optionally, the slag pot tilting machine comprises a tilting device, a transmission structure and a tilting frame, the tilting device spans over the slag bed, the tilting frame is located above the slag bed and connected to the tilting device, the transmission structure is fixed on the tilting device, the transmission structure drives the tilting frame to horizontally move relative to the slag bed, a slag pot trunnion support is arranged on the tilting device, and the trunnion support is kept stationary when the slag pot rotates.
Through adopting above-mentioned technical scheme, the sediment jar that is equipped with slag is fixed back with tipping device, can realize the rotation of sediment jar through tipping device, and the sediment jar is rotatory along gudgeon center to empty the slag in the sediment jar on the sediment bed, and transmission structure can drive tipping device, tumble frame and the relative sediment bed of sediment jar and go to remove, thereby enable more even the empting of slag on the sediment bed, promoted slag treatment efficiency.
Optionally, the maximum tipping angle of the tipping device does not exceed 180 °.
Optionally, a slag storage tank is arranged in the steel slag hot-disintegrating treatment workshop, the slag storage tanks are arranged in a plurality of numbers, and the slag storage tanks are arranged adjacent to the slag beds.
Through adopting above-mentioned technical scheme, the slag pouring stage of tumbling and the hot smoldering stage cross operation, after the slag processing finishes, in time with the slag shovel of handling in the sediment pond to for cross operation provides convenience, promote slag efficiency.
Optionally, an accommodating groove is formed in the top of the slag bed, a space formed by the accommodating groove is used for accommodating steel slag, the slag bed is made of concrete, a pebble layer and a slag layer are laid at the bottom of the accommodating groove from bottom to top, the wall of the accommodating groove is composed of a heat insulation protective plate and a support, and a refractory material is not filled between the heat insulation protective plate and the accommodating groove, so that a thermal stress reaction space is provided for the heat insulation protective plate to be heated; the slag bed is provided with a drain hole which penetrates through the wall of the accommodating groove and is communicated with the pebble layer.
Through adopting above-mentioned technical scheme, the hole in slag blanket and the pebble bed provides the circulation route for the recovery of water resource, and the pebble bed can also play filterable effect simultaneously, has the space between thermal-insulated backplate and the holding tank, provides the reaction space for the deformation of thermal-insulated backplate.
Optionally, the top surface of the pebble layer is obliquely arranged, and the oblique direction is obliquely downwards arranged along the position far away from the steel slag to be poured.
By adopting the technical scheme, the steel slag is convenient to pave and flow due to the inclined arrangement, so that the steel slag fully reacts with cold water, and the cooling speed of the steel slag is also improved.
Optionally, the slag bed length direction is along keeping away from the setting of slag quilt department of toppling over, has seted up the drainage channel on the slag bed, and the drainage channel has been seted up two and is located the holding tank both sides respectively, and the wash port communicates cobble layer and inside the drainage channel.
Through adopting above-mentioned technical scheme, the ditch is used for collecting the water that many places come, recycles after cooling water to accord with environmental protection and energy saving's theory.
Optionally, the spraying facility comprises a plurality of spraying spray guns and a plurality of manual nozzles, the spraying spray guns and the manual nozzles are fixed on the slag beds, and one manual nozzle is arranged on each slag bed.
Through adopting above-mentioned technical scheme, artifical control can be realized to artifical shower nozzle, sprays the region that needs wash on the follow-up slag bed, makes the slag 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 upper part of 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 dusts when the slag is emptyd, finishes when the slag treatment, and the scarfing cinder process also can produce a large amount of dusts, and confined space cooperation dust cage to prevent that the dust is excessive, and the confined space can make full use of the heat of slag, produce more vapor, do benefit to the processing of slag.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the liquid steel slag and the semi-solid steel slag are mixed by tipping and slag distributing, the molten steel slag transfers high temperature to the semi-solid steel slag, and the continuous cross operation can transfer enough temperature to the semi-solid steel slag, so that the steel slag can also be subjected to quenching reaction when meeting water after the temperature is raised, and all the steel slag can be fully digested; and slag is directly smoldered after the slag is poured, namely, the slag pouring and the steel slag pulverization reaction are carried out simultaneously, so that the treatment process is saved, and the treatment efficiency is improved.
2. The slag bed and the dust collecting cover form a closed space, so that particulate matter dust, waste gas and the like generated in each process are effectively collected, and the concept of environmental protection 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 layout of an embodiment of the present application;
FIG. 3 is a schematic plan view of a slag bed;
FIG. 4 is a schematic view of the slag bed in elevation;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure, 1, a slag bed; 11. accommodating a tank; 12. a pebble layer; 13. a support; 14. a heat insulation guard plate; 15. a drain hole; 16. a drainage channel; 2. a dust cage; 3. a casting crane; 4. a slag pot tipping machine; 41. a tipping device; 42. a transmission structure; 43. tipping the frame; 5. a slag storage tank.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a method for treating various steel slags by a tipping hot stuffiness process.
Referring to fig. 1, the method for processing various steel slags by using the tipping hot smoldering process comprises a tipping slag dumping stage and a hot smoldering stage, wherein the two stages are alternately performed, so that the temperature of the liquid molten steel slag is fully utilized, the temperature of the semi-solid steel slag is continuously increased, the semi-solid steel slag can be pulverized and broken when meeting cold water, various steel slags can be processed, the effect of being suitable for various enterprises is achieved, and the processing efficiency of the steel slags is improved.
Referring to fig. 1, after tapping in the steelmaking plant, either liquid molten steel slag or semi-solid steel slag is transported by a slag tanker to a hot slag stuffiness reduction plant.
Referring to fig. 1 and 2, a casting crane 3, a slag bed 1 and a slag storage pool 5 are arranged in the steel slag hot closed processing workshop; in the embodiment, the steel slag hot-disintegration treatment workshop is a strip-shaped workshop, the casting crane 3 slides along the length direction of the steel slag hot-disintegration treatment workshop, a plurality of slag beds 1 are arranged, the adjacent slag beds 1 are equidistantly arranged along the sliding direction of the casting crane 3, and the slag storage pool 5 is provided with two head parts and tail parts which are respectively positioned on the connecting lines of all the slag beds 1; the slag storage pool 5 can be arranged in more or less quantity, and the specific quantity is determined according to the transportation frequency of the steel slag after hot disintegration.
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, the top of the slag bed 1 is provided with an accommodating groove 11 and two drainage channels 16, the accommodating groove 11 and the drainage channels 16 are both arranged along the length direction of the slag bed 1, and the two drainage channels 16 are arranged, and the adjacent drainage channels 16 are distributed on two sides of the accommodating groove 11; a pebble layer 12 is laid at the bottom of the accommodating groove 11, a slag layer is laid on the pebble layer 12, a heat insulation protective plate 14 and a support 13 are fixed on the wall of the accommodating groove 11, one end of the support 13 is fixed with the wall of the accommodating groove 11, the other end of the support is fixed with the heat insulation protective plate 14, and a refractory material is not filled between the heat insulation protective plate 14 and the accommodating groove 11, so that a thermal stress reaction space is provided for the heat insulation protective plate 14 to be heated.
Referring to fig. 3, the top surface of the pebble layer 12 is an inclined surface, and the inclined direction is inclined downwards along the position far away from the initial dumping position of the slag pot, so that the steel slag can be better paved on the pebble layer 12.
Referring to fig. 4 and 5, a water drainage hole 15 is formed in the slag bed 1, the water drainage hole 15 is horizontally formed, one end of the water drainage hole 15 is located at the pebble layer 12, and the other end of the water drainage hole 15 is located in a water drainage channel 16, so that water permeating from the upper side of the pebble layer 12 can be better collected, and water resource recycling is achieved.
Referring to fig. 3, be provided with on the slag bed 1 and spray the setting, it includes watering spray gun and artifical shower nozzle to spray the facility, watering spray gun and artifical shower nozzle are all fixed on slag bed 1, and all be located the vertical cell wall of holding tank 11, watering spray gun is provided with a plurality ofly on every slag bed 1, but artifical shower nozzle is provided with one, adjacent watering spray gun is arranged along 1 length direction interval of slag bed, all set up the water main on every slag bed 1, the water main is equipped with an electric butterfly valve and a manual stop valve, the setting of manual stop valve is in order to answer proruption situation, the workman in time control of being convenient for.
Referring to fig. 3 and 4, a slag ladle tilting machine 4 is also arranged on the slag bed 1, and the slag ladle tilting machine 4 is used for receiving a slag ladle and transporting the slag ladle to a designated place along the slag bed 1 for deslagging. The slag pot tilting machine 4 comprises a tilting device 41, a transmission structure 42 and a tilting frame 43, wherein the tilting device 41 spans over the slag bed 1 in a door-shaped frame shape, the tilting frame 43 is positioned right above the slag bed 1 and is fixedly connected with the tilting device 41, the tilting frame 43 is used for receiving a slag pot, and the tilting device 41 drives the slag pot to tilt, and the tilting angle does not exceed 180 degrees.
Referring to fig. 3 and 4, the holding tank 11 is spaced from the drainage channel 16, and the drive structure 42 is fixed to the end of the tilting device 41 near the slag bed 1, the drive structure 42 being capable of carrying the tilting device 41 for movement along the length of the slag bed 1. In this embodiment, a track is laid on the top of the slag bed 1, one track is arranged on each of the two sides of each drainage channel 16, the tracks are laid along the length direction of the slag bed 1, and the single transmission structure 42 is placed on the tracks on the two sides of each drainage channel 16, so that the slag ladle tilting machine 4 can move along the length of the slag bed 1. In the embodiment, the power device in the slag pot tipping machine 4 adopts the motor to provide power, and other power devices can be adopted, so that the functions of the slag pot tipping machine 4 can be realized.
Referring to fig. 4, each slag bed 1 is provided with a dust hood 2, and 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 form is selected according to the space of a factory building; 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, the whole system capable of spraying water mist exists. The dust cage 2 is a steel skeleton, and in this embodiment, a stainless steel plate is laid on the inner side of the steel skeleton. The dust hood 2 plays a role in collecting dust during deslagging, plays a role in maintaining collection of steam during slag smoldering, and can also reduce the overflow of dust during slag discharging.
The implementation principle of the embodiment of the application is as follows: after slag is discharged from the steel-making workshop, a slag tank car transports the slag tank to a steel slag hot-stuffy processing workshop, a casting starter lifts the slag tank, the slag tank is lifted to a tipping frame 43, steel slag in the slag tank is poured into a slag bed 1 by utilizing a transmission structure 42 and a tipping device 41, and liquid and semi-solid steel slag are fully mixed at the moment and are heated by utilizing liquid high temperature, so that the semi-solid steel slag can also have pulverization reaction with cold water; spraying cold water to cool the steel slag; the tipping slag pouring stage and the slag smoldering stage are synchronously, alternately and continuously carried out; and after the slag smoldering procedure is finished, the steel slag is conveyed out by a forklift.
For the convenience of understanding, experimental data are taken as an example for further explanation, 2 200t converters are planned in a certain plant, the annual production of ordinary carbon steel water is 500 ten thousand tons, the slag yield is considered to be 120kg per ton steel, and other casting residue, refining slag and the like are 20kg per ton steel, so that the annual production of liquid steel slag is about 60 ten thousand tons, the semi-solid slag is about 10 ten thousand tons, and the solid slag yield of certain special steel smelting plants is relatively large.
2, drawing up an operation system that one converter is connected with one tank of slag for 200t converters, wherein the quantity of slag generating tanks per day is 80 tanks, and the quantity of slag in each tank is about 24 t; the solid slag tipping and deslagging time is about 8h, the deslagging procedure and the hot smoldering procedure are operated alternately, and the hot smoldering period is about 8-12h according to different slag quantities and types. Solid steel slag in the steelmaking workshop can be mixed with liquid steel slag for hot disintegration, all steel slag can be fully digested, the processes of tipping, deslagging, hot disintegration and slag removal are all completed in the dust hood 2, and particulate matters, dust, waste gas and the like generated in each process are effectively collected. The dust cage 2 selected by the tipping hot stuffy process can be the same as the dust cage 2 of the current rolling crushing-vertical hot stuffy tank process, the dust removal effect of the process can be similar, wet method and wet electricity dust removal are adopted, the emission concentration is less than or equal to 10mg/Nm3, and the ultra-low emission requirement can be met.
The embodiments of the present invention are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A method for treating various steel slags by a tipping hot smoldering process is characterized by comprising the following steps of: comprises a tipping slag pouring stage and a hot stuffy stage; the tipping and deslagging stage comprises the following steps: liquid molten steel slag and semi-solid steel slag in a steelmaking workshop are conveyed to a steel slag hot closed treatment workshop, the slag is poured through a slag ladle tipper (4), the effect of steel slag layering and uniform slag distribution is achieved through the slag ladle tipper (4), the solid slag and the liquid slag are mixed in a slag bed (1), a dust collection cover (2) is arranged above the slag bed (1), and the dust collection cover (2) and the slag bed (1) form a closed space; the hot stuffy phase comprises: starting a spraying facility arranged around the slag bed (1), spraying cold water to carry out sultry treatment on various mixed steel slag by the spraying facility, carrying out pulverization reaction on the steel slag when the steel slag meets the cold water, and repeatedly spraying the cold water until the steel slag is pulverized and stabilized; and performing cross operation in a tipping slag pouring stage and a hot stuffy stage.
2. The method for processing various steel slags in a tipping hot smoldering process according to claim 1, which is characterized in that: after slag is discharged from the steel-making workshop, the slag tank is transported to a steel slag hot-closed treatment room by the slag tank car, the slag tank is hoisted to the slag tank tilting machine (4) by the casting crane (3), and the slag tank tilting machine (4) is used for transporting the slag tank to a specified place to realize slag distribution.
3. The method for processing various steel slags in a tipping hot smoldering process as claimed in claim 2, characterized in that: the slag pot tilting machine (4) comprises a tilting device (41), a transmission structure (42) and a tilting frame (43), wherein the tilting device (41) spans over the slag bed (1), the tilting frame (43) is positioned above the slag bed (1) and connected to the tilting device (41), the transmission structure (42) is fixed on the tilting device (41), the transmission structure (42) drives the tilting frame (43) to horizontally move relative to the slag bed (1), a slag pot trunnion support is arranged on the tilting device, and the trunnion support is kept still when the slag pot rotates.
4. The method for processing various steel slags by the tipping hot smoldering process as claimed in claim 3, wherein: the maximum tilting angle of the tilting device (41) does not exceed 180 degrees.
5. The method for processing various steel slags by the tipping hot smoldering process as claimed in claim 2, wherein: a plurality of slag storage tanks (5) are arranged in the steel slag hot-seal treatment workshop, and the slag storage tanks (5) are arranged adjacent to the slag bed (1).
6. The method for processing various steel slags in a tipping hot smoldering process according to claim 1, which is characterized in that: the slag bed is characterized in that a containing groove (11) is formed in the top of the slag bed (1), a space opened up by the containing groove (11) is used for containing steel slag, the slag bed (1) is made of concrete, a pebble layer (12) and a slag layer are laid 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 protective plate (14) and a support (13), and a refractory material is not filled between the heat insulation protective plate (14) and the containing groove, so that a thermal stress reaction space is provided for the heat insulation protective plate (14) to be heated; a drain hole (15) is arranged on the slag bed (1), and the drain hole (15) penetrates through the groove wall of the accommodating groove (11) and is communicated with the pebble layer (12).
7. The method for processing various steel slags in a tipping hot smoldering process according to claim 6, characterized in that: the top surface of the pebble layer (12) is obliquely arranged, and the oblique direction is obliquely downwards arranged along the position far away from the steel slag to be poured.
8. The method for processing various types of steel slag through the tipping hot smoldering process as claimed in claim 6, wherein the tipping hot smoldering process comprises the following steps: slag blanket (1) length direction sets up along keeping away from the slag and being emptyd the department, has seted up drainage channel (16) on slag blanket (1), and drainage channel (16) have been seted up two and are located holding tank (11) both sides respectively, and wash port (15) intercommunication cobble layer (12) and inside drainage channel (16).
9. The method for processing various steel slags by the tipping hot smoldering process as claimed in claim 1, wherein: the spraying facility comprises a plurality of spraying guns and manual nozzles, the spraying guns and the manual nozzles are fixed on the slag bed (1), and one manual nozzle is arranged on each slag bed (1).
10. The method for processing various steel slags in a tipping hot smoldering process as claimed in claim 2, characterized in that: the dust hood (2) is a fixed dust hood (2) or a semi-movable dust hood (2), the dust hood (2) completely covers the upper part of 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) for dust prevention.
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