CN110512039A - The wind quenching granulating method of liquid steel slag containing molten steel - Google Patents
The wind quenching granulating method of liquid steel slag containing molten steel Download PDFInfo
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- CN110512039A CN110512039A CN201910963217.5A CN201910963217A CN110512039A CN 110512039 A CN110512039 A CN 110512039A CN 201910963217 A CN201910963217 A CN 201910963217A CN 110512039 A CN110512039 A CN 110512039A
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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
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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
-
- 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
- C21B3/10—Slag pots; Slag cars
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous waste material
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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
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
-
- 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
- C21B2400/062—Jet nozzles or pressurised fluids for cooling, fragmenting or atomising slag
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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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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
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Abstract
The present invention relates to vanadium slag wind quenching method fields; it is especially a kind of efficiently easy; it is granulated the wind quenching granulating method of the good liquid steel slag containing molten steel of effect; include the following steps: a, the liquid steel slag containing molten steel is placed in melt cinder tank; the liquid steel slag opening tuyere and being slowly poured out in melt cinder tank; liquid steel slag flow to chute end through chute and is granulated by the high wind that tuyere is sent out and realizes wind quenching, then forces cooling；Wherein, when there is flue dust to occur, the high wind that tuyere is sent out switches to nitrogen high wind immediately and continues granulated processed；B, after being cooled to 150 DEG C or less, obtained pellet is collected, then screened classification, and the classification granulating steel slag finished product that will be cooled to room temperature is stand-by according to class pack storage, iron charge is granulated product return steel-making and utilizes.The present invention is easy to operate in actual use, can be very good to realize the efficient easy of the liquid steel slag processing containing molten steel, present invention is particularly suitable among the wind quenching granulating technique of the liquid steel slag containing molten steel.
Description
Technical field
The present invention relates to vanadium slag wind quenching method field, the wind quenching granulation sides of especially a kind of liquid steel slag containing molten steel
Method.
Background technique
Steel slag be steel-making generate by-product, using silicate, ferrite as main component, about the 6% of output of steel~
12%.Currently, steel slag mainly passes through the stewing method of steel vanadium heat and vanadium hot application method (aquation is cooling to promote slag iron separation) centralized processing.Heat is stewing
The method processing time is longer, is 4~8h.After slag iron separation selects iron, curing steel-making slag powder is mainly used as production cement, and small part is for building
Build material；Iron charge returns to steel-making and utilizes.Two kinds of technique labor intensity are high, and utilization rate of steel slag is lower, and heat can not benefit in slag
With.In addition, Technology of Steel Slag Processing also mainly has disk to sprinkle method, water quenching, drum process, wind quenching method and granulating wheel method etc..These techniques
In, consider from simple process, small investment angle, generallys use hot application method, the bored method of heat, water quenching；Consider from the physical state of slag,
The preferable steel slag of mobility can be used disk and sprinkle method, water quenching, drum process, wind quenching method, granulating wheel method, wherein the bored method of heat or wind quenching
The high steel slag of the available good security of method, activity.
There is research in the country such as Japan, Germany, Sweden, South Korea to liquid slag air quenching technology.Nippon, Kawasaki system
Iron, Sumitomo Metal Industries etc. have carried out the granulation practice of blast furnace slag wind quenching, and core apparatus is wind-tunnel, and basic granulation is slag in wind
It dispelled in hole by air stream, be granulated rapidly, dispersion plate and wind-tunnel the inner wall collision arranged in slag particle and wind-tunnel are fallen, cold with lower part
But after air heat exchange, wind-tunnel is discharged.This method processing capacity is big, and treated, and slag can make cement raw material, and replace sand material
Deng, can significantly improve steel slag value.
It is domestic to be concentrated mainly on steel slag air quenching aspect for the research of liquid slag air quenching technology at present.Liquid slag air quenching refers to
Under the powerful impact force of high pressure draught and cooling effect, melt is crushed by the effects of passing through shearing, while slag and high pressure gas
Body heat exchange is finally reached the purpose of slag granulating and waste heat recycling.It is lasting that the key of liquid slag air quenching is that spray head can provide
High pressure draught, and there is the reasonable gas flowfield regularity of distribution, liquid slag air quenching will receive gas jet, gas flow, spray
The influence of the factors such as header structure, liquid slag physical characteristic.Wind crush method processing obtain slag particle partial size is smaller, particle diameter distribution model
Enclose relatively narrow, the slag condensation rate of processing is most fast, and also the most thoroughly, each crystalline phase distribution is uniform, and crystal grain is very for free cao resolution
It is tiny.Meanwhile pellet hardness is larger, other opposite processing modes, crust block often will appear timeliness phase transformation and structural rearrangement, recombinate
Principal crystalline phase afterwards is mainly dicalcium silicate, and crystal grain becomes larger.Wherein, slag is handled with wind quenching method, is such as done using different gas
The broken medium of wind, there are larger differences in performance for obtained crust block particle.Such as using air or pure oxygen as medium, slag oxidation is acute
It is strong, in crust block iron based on ferric iron, subsequent iron component substantially can not magnetic separation recovery, iron loss is larger.Such as using nitrogen as medium, then
Iron is based on ferrous iron in crust block, and has a small amount of metallic iron to coexist therewith, can the partially recycled metallic iron of magnetic separation after timeliness phase transformation.
When process broken using wind, it is desirable that slag has good mobility and low viscosity.Therefore, existing processing mode, it tends to be difficult to
Reach actual process demand.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of efficiently easy, the granulation good liquid containing molten steel of effect
The wind quenching granulating method of steel slag.
The technical solution adopted by the present invention to solve the technical problems is: the wind quenching granulation side of the liquid steel slag containing molten steel
Method includes the following steps: a, the liquid steel slag containing molten steel is placed in melt cinder tank, opens tuyere and melt cinder tank is slowly poured out
Interior liquid steel slag, liquid steel slag flow to chute end through chute and are granulated by the high wind that tuyere is sent out and realize wind quenching, then
Liquid steel slag brings forced cooling chamber by high wind and forces cooling；Wherein, when there is flue dust to occur, the high wind that tuyere is sent out is cut immediately
It changes nitrogen high wind into and continues granulated processed；B, after being cooled to 150 DEG C or less, obtained pellet is collected, then passes through
Chain transports grading plant sieve classification, and the classification granulating steel slag finished product that will be cooled to room temperature is stand-by according to class pack storage, iron
Expect that granulation product return to steel-making and utilize.
Further, the liquid steel slag temperature range in melt cinder tank is 1350~1600 DEG C in step a.
Further, the liquid steel temperature range under liquid steel slag is 1550~1650 DEG C in step a.
Further, further including power-assisted tuyere, the pressure limit for the high wind that tuyere and power-assisted tuyere are sent out in step a
For 0.4~0.6MPa.
Further, the rate of toppling over of the liquid steel slag in melt cinder tank is 10~70t/h in step a.
Further, the pressure cooling medium range in forced cooling chamber is 0.3~0.6MPa in step a.
Further, in step a, when there is flue dust to occur, the nitrogen high wind pressure limit that tuyere is sent out is 1.0~
1.5MPa。
Further, further include power-assisted tuyere, when there is flue dust to occur, the nitrogen high wind pressure model of power-assisted tuyere submitting
It encloses for 1.0~1.5MPa.
Further, after every tank contains the liquid steel slag wind quenching of molten steel, supplementing next tank liquid immediately in step a
In state vanadium slag to melt cinder tank and handled.
Further, every tank slag processing time range is between 10~60min in step a.
The beneficial effects of the present invention are: the present invention is easy to operate in actual use, it can be very good to realize and contain molten steel
Liquid steel slag processing it is efficient easy, meanwhile, final granulation effect is good, thus cost-efficiently processing steel slag.Gained
The powder grade product arrived can making cement produce ingredient, also can return to steel-making use.Wherein, slag charge granulated product intensity is high, density
For 3~6g/cm3, sand mould material can also be done, sand-blast material and cement material etc. are widely used.Iron charge is granulated product and returns to steel-making
It utilizes, realizes making full use of for material.Present invention is particularly suitable among the wind quenching granulating technique of the liquid steel slag containing molten steel.
Specific embodiment
The wind quenching granulating method of liquid steel slag containing molten steel includes the following steps: a, by the liquid steel slag containing molten steel
It is placed in melt cinder tank, the liquid steel slag opening tuyere and being slowly poured out in melt cinder tank, liquid steel slag flow to chute end through chute
It holds and is granulated by the high wind that tuyere is sent out and realizes wind quenching, subsequent liquid steel slag brings forced cooling chamber by high wind and forces cooling；
Wherein, when there is flue dust to occur, the high wind that tuyere is sent out switches to nitrogen high wind immediately and continues granulated processed；B, it is cooled to
After 150 DEG C or less, obtained pellet is collected, then transports grading plant sieve classification through chain, and will be cooled to room
The classification granulating steel slag finished product of temperature is stand-by according to class pack storage, and iron charge granulation product return to steel-making and utilize.
In practical operation, the vanadium slag wind quenching device of use is generally comprised: chute, tuyere, power-assisted tuyere, air and nitrogen
Delivery pipe and its switching valve, forced cooling chamber are granulated collector, exhaust outlet, discharge port, the chain conveyer under discharge port, with
And the components such as magnetic separation screening setting.It is preferred that forced cooling chamber grows 15~25m, wide 10~15m, there are cooling air port in two sides, and bottom has
Pellet collection device.For the granulation finished product that the present invention obtains, having powder grade, (granularity is in 0.5mm or less) and granulation grade
Point of (granularity is in 0.5~5.0mm).It is high to obtain granulated product intensity, density is 3~6g/cm3.Granulated product finished product is then according to class
Pack storage is stand-by.Wherein, powder grade product can making cement produce ingredient, also can return to steel-making use；Granulated product can do sand
Profile material, sand-blast material and cement material etc., it is widely used.Iron charge is granulated product and returns to steel-making utilization.
It, can preferably following scheme to obtain better vanadium slag treatment effect in order to optimize wind quenching quality: in step a,
Liquid steel slag temperature range in melt cinder tank is 1350~1600 DEG C；In step a, the liquid steel temperature range under liquid steel slag is
1550~1650 DEG C.By accurately controlling to temperature, the quality of wind quenching can be optimized, obtain more preferably product.Likewise, can
With in preferred steps a, the rate of toppling over of the liquid steel slag in melt cinder tank is 10~70t/h.
It further include power-assisted tuyere in step a, tuyere and power-assisted tuyere are sent out strong to further strengthen wind quenching effect
The pressure limit of wind is 0.4~0.6MPa.Wind quenching effect can be strengthened with tuyere together by including power-assisted tuyere, to realize more preferable
Granulation effect.
In order to obtain more preferably cooling effect, in preferred steps a, the pressure cooling medium range in forced cooling chamber
For 0.3~0.6MPa.
It is directed to the treatment effect containing this characteristic of molten steel in order to preferably optimize, preferably such scheme: in step a,
When there is flue dust to occur, the nitrogen high wind pressure limit that tuyere is sent out is 1.0~1.5MPa.When there is flue dust to occur, mainly
Molten steel granulation then needs targetedly to be adjusted high wind at this time, wherein the nitrogen high wind pressure limit that tuyere is sent out
Guarantee final processing quality to flexibly cope with process demand when molten steel is granulated for 1.0~1.5MPa.Likewise, in order to
Strengthen wind quenching effect, it is also preferable to include power-assisted tuyeres, when there is flue dust to occur, the nitrogen high wind pressure limit of power-assisted tuyere submitting
For 1.0~1.5MPa.
In order to improve the efficiency of processing, in step a, after every tank contains the liquid steel slag wind quenching of molten steel, supplement immediately
In next tank liquid vanadium slag to melt cinder tank and handled.In addition, slag processing can be carried out continuously, can also gap carry out, need to be with
STEELMAKING PRODUCTION rhythm matches, and guarantees that STEELMAKING PRODUCTION smoothly efficiently carries out.In generally preferably step a, when every tank slag processing
Between range between 10~60min.
Embodiment
Embodiment 1
Steel slag wind quenching process units includes: melt cinder tank, chute, tuyere, power-assisted tuyere, forced cooling chamber, air and nitrogen
Delivery pipe and its switching valve are granulated collector, exhaust outlet, discharge port, chain conveyer and magnetic separation screening dress under discharge port
It sets.There are cooling air port in forced cooling chamber long 15m, wide 10m, two sides, and pellet collection device is arranged at bottom.Wind quenching and cooling medium can
With air, nitrogen and water etc., each medium is used interchangeably, and can also be switched according to actual conditions such as flue dust sizes and be used.
Several liquid steel slags (1350 DEG C of liquid steel slag temperature, 1550 DEG C of liquid steel temperature under steel slag) containing molten steel are placed in
In melt cinder tank, first pressurization pressure is the air high wind of 0.4MPa and liquid steel slag is slowly poured out, and topples over 10~70t/h of rate, liquid
State steel slag flow to chute end through chute, is granulated and is brought into strong by the high wind that the pressure that tuyere and power-assisted tuyere are sent out is 0.4MPa
Cooling chamber processed forces cooling.Pressure cooling medium 0.3MPa.When having flue dust to occur, tuyere and power-assisted tuyere switch to nitrogen immediately
Gas high wind continues granulated processed, at this point, mainly molten steel granulation.The nitrogen high wind pressure that tuyere and power-assisted tuyere are sent out
1.5MPa, cooling vapour pressure 0.6MPa.After the liquid steel slag wind quenching that every tank contains molten steel finishes, it can be transferred at next tank steel slag
Reason.Slag processing can be carried out continuously, can also gap progress.Every tank slag processing time control is between 10min, with STEELMAKING PRODUCTION
Rhythm matches, and guarantees STEELMAKING PRODUCTION.
It is cooled to after 150 DEG C of pellets below collect automatically, transports grading plant sieve classification through chain, produce
Granulation finished product has powder grade, and (granularity is in 0.5mm or less) and granulation grade (granularity is in 0.5~5.0mm).Granulated product intensity is high, close
Degree is 3g/cm3.Powder grade product can making cement produce ingredient, also can return to steel-making use；Granulated product can do sand mould material,
Sand-blast material and cement material etc., it is widely used.Iron charge is granulated product and returns to steel-making utilization.
After liquid steel slag wind quenching containing molten steel finishes, supplements in next tank liquid vanadium slag to melt cinder tank and handled immediately.
Embodiment 2
Steel slag wind quenching process units includes: melt cinder tank, chute, tuyere, power-assisted tuyere, forced cooling chamber, air and nitrogen
Delivery pipe and its switching valve are granulated collector, exhaust outlet, discharge port, chain conveyer and magnetic separation screening dress under discharge port
It sets.There are cooling air port in forced cooling chamber long 15m, wide 10m, two sides, and pellet collection device is arranged at bottom.Wind quenching and cooling medium can
With air, nitrogen and water etc., each medium is used interchangeably, and can also be switched according to actual conditions such as flue dust sizes and be used.
Several liquid steel slags (1500 DEG C of liquid steel slag temperature, 1600 DEG C of liquid steel temperature under steel slag) containing molten steel are placed in
In melt cinder tank, first pressurization pressure is the air high wind of 0.5MPa and liquid steel slag is slowly poured out, and topples over 10~70t/h of rate, liquid
State steel slag flow to chute end through chute, is granulated and is brought into strong by the high wind that the pressure that tuyere and power-assisted tuyere are sent out is 0.5MPa
Cooling chamber processed forces cooling.Pressure cooling medium is 0.45MPa.When having flue dust to occur, tuyere and power-assisted tuyere switch immediately
Continue granulated processed at nitrogen high wind, at this point, mainly molten steel granulation.The nitrogen high wind pressure that tuyere and power-assisted tuyere are sent out
Power 1.25MPa, cooling vapour pressure 0.45MPa.After the liquid steel slag wind quenching that every tank contains molten steel finishes, next tank steel slag can be transferred to
Processing.Slag processing can be carried out continuously, can also gap progress.Every tank slag processing time control, be with steel-making between 30min
Rhythm of production matches, and guarantees STEELMAKING PRODUCTION.
It is cooled to after 150 DEG C of pellets below collect automatically, transports grading plant sieve classification through chain, produce
Granulation finished product has powder grade, and (granularity is in 0.5mm or less) and granulation grade (granularity is in 0.5~5.0mm).Granulated product intensity is high, close
Degree is 3g/cm3.Powder grade product can making cement produce ingredient, also can return to steel-making use；Granulated product can do sand mould material,
Sand-blast material and cement material etc., it is widely used.Iron charge is granulated product and returns to steel-making utilization.
After liquid steel slag wind quenching containing molten steel finishes, supplements in next tank liquid vanadium slag to melt cinder tank and handled immediately.
Embodiment 3
Steel slag wind quenching process units includes: melt cinder tank, chute, tuyere, power-assisted tuyere, forced cooling chamber, air and nitrogen
Delivery pipe and its switching valve are granulated collector, exhaust outlet, discharge port, chain conveyer and magnetic separation screening dress under discharge port
It sets.There are cooling air port in forced cooling chamber long 15m, wide 10m, two sides, and pellet collection device is arranged at bottom.Wind quenching and cooling medium can
With air, nitrogen and water etc., each medium is used interchangeably, and can also be switched according to actual conditions such as flue dust sizes and be used.
Several liquid steel slags (1600 DEG C of liquid steel slag temperature, 1650 DEG C of liquid steel temperature under steel slag) containing molten steel are placed in
On melt cinder fangs, first pressurization pressure is the air high wind of 0.6MPa and liquid steel slag is slowly poured out, and topples over 10~70t/ of rate
H, liquid steel slag flow to chute end through chute, send out pressure by tuyere and power-assisted tuyere and are granulated and bring into for the high wind of 0.6MPa
Forced cooling chamber forces cooling.Pressure cooling medium 0.6MPa.When having flue dust to occur, tuyere and power-assisted tuyere switch to immediately
Nitrogen high wind continues granulated processed, at this point, mainly molten steel granulation.The nitrogen high wind pressure that tuyere and power-assisted tuyere are sent out
1.0MPa, cooling vapour pressure 0.3MPa.After the liquid steel slag wind quenching that every tank contains molten steel finishes, it can be transferred at next tank steel slag
Reason.Slag processing can be carried out continuously, can also gap progress.Every tank slag processing time control will give birth between 60min with steel-making
It produces rhythm to match, guarantees STEELMAKING PRODUCTION.
It is cooled to after 150 DEG C of pellets below collect automatically, transports grading plant sieve classification through chain, produce
Granulation finished product has powder grade, and (granularity is in 0.5mm or less) and granulation grade (granularity is in 0.5~5.0mm).Granulated product intensity is high, close
Degree is 3g/cm3.Powder grade product can making cement produce ingredient, also can return to steel-making use；Granulated product can do sand mould material,
Sand-blast material and cement material etc., it is widely used.Iron charge is granulated product and returns to steel-making utilization.
After liquid steel slag wind quenching containing molten steel finishes, supplements in next tank liquid vanadium slag to melt cinder tank and handled immediately.
It can be concluded that, the present invention is efficiently easy through the foregoing embodiment, and granulation effect is good, and market market promotion prospect is very
It is wide.
Claims (10)
1. the wind quenching granulating method of the liquid steel slag containing molten steel, which comprises the steps of:
A, the liquid steel slag containing molten steel is placed in melt cinder tank, the liquid steel opening tuyere and being slowly poured out in melt cinder tank
Slag, liquid steel slag flow to chute end through chute and are granulated by the high wind that tuyere is sent out and realize wind quenching, subsequent liquid steel slag quilt
High wind brings forced cooling chamber into and forces cooling；Wherein, when there is flue dust to occur, it is strong that the high wind that tuyere is sent out switches to nitrogen immediately
Wind simultaneously continues granulated processed；
B, after being cooled to 150 DEG C or less, obtained pellet is collected, then through chain transport grading plant screening point
Grade, and the classification granulating steel slag finished product that will be cooled to room temperature is stand-by according to class pack storage, iron charge granulation product return to steel-making and utilize.
2. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, liquid
Liquid steel slag temperature range in slag ladle is 1350~1600 DEG C.
3. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, liquid
Liquid steel temperature range under state steel slag is 1550~1650 DEG C.
4. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, also
Including power-assisted tuyere, the pressure limit for the high wind that tuyere and power-assisted tuyere are sent out is 0.4~0.6MPa.
5. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, liquid
The rate of toppling over of liquid steel slag in slag ladle is 10~70t/h.
6. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, by force
Indoor pressure cooling medium range is 0.3~0.6MPa to refrigeration.
7. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, when
When having flue dust to occur, the nitrogen high wind pressure limit that tuyere is sent out is 1.0~1.5MPa.
8. the wind quenching granulating method of the liquid steel slag containing molten steel as claimed in claim 7, it is characterised in that: further include power-assisted
Tuyere, when there is flue dust to occur, the nitrogen high wind pressure limit that power-assisted tuyere is sent out is 1.0~1.5MPa.
9. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a, often
After tank contains the liquid steel slag wind quenching of molten steel, supplements in next tank liquid vanadium slag to melt cinder tank and handled immediately.
10. the wind quenching granulating method of the liquid steel slag containing molten steel as described in claim 1, it is characterised in that: in step a,
Every tank slag processing time range is between 10~60min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110791601A (en) * | 2019-12-26 | 2020-02-14 | 江苏华闰环保科技有限公司 | Extremely-fast air cooling treatment device and method for liquid steel slag |
| CN110950605A (en) * | 2019-12-18 | 2020-04-03 | 钢城集团凉山瑞海实业有限公司 | High-wear-resistance water-permeable brick surface layer and preparation method thereof |
| CN111500804A (en) * | 2020-06-01 | 2020-08-07 | 上海驰春节能科技有限公司 | Device and method for producing steel slag powder by using liquid steel slag |
| CN112496332A (en) * | 2020-12-09 | 2021-03-16 | 钢城集团凉山瑞海实业有限公司 | Method and device for manufacturing fireproof material |
| CN113149495A (en) * | 2021-05-26 | 2021-07-23 | 南京腾达环保科技有限公司 | By using CO-containing gas2Device and method for pretreating steel slag by tail gas air quenching |
| CN116475194A (en) * | 2023-04-11 | 2023-07-25 | 安徽广祥冶金科技有限公司 | Waste residue energy-saving treatment device for steel smelting and treatment method thereof |
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| CN110791601A (en) * | 2019-12-26 | 2020-02-14 | 江苏华闰环保科技有限公司 | Extremely-fast air cooling treatment device and method for liquid steel slag |
| CN111500804A (en) * | 2020-06-01 | 2020-08-07 | 上海驰春节能科技有限公司 | Device and method for producing steel slag powder by using liquid steel slag |
| CN112496332A (en) * | 2020-12-09 | 2021-03-16 | 钢城集团凉山瑞海实业有限公司 | Method and device for manufacturing fireproof material |
| CN113149495A (en) * | 2021-05-26 | 2021-07-23 | 南京腾达环保科技有限公司 | By using CO-containing gas2Device and method for pretreating steel slag by tail gas air quenching |
| CN116475194A (en) * | 2023-04-11 | 2023-07-25 | 安徽广祥冶金科技有限公司 | Waste residue energy-saving treatment device for steel smelting and treatment method thereof |
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