CN106423168A - Method and device for preparing tar cracking catalyst through liquid blast furnace slag granulation - Google Patents
Method and device for preparing tar cracking catalyst through liquid blast furnace slag granulation Download PDFInfo
- Publication number
- CN106423168A CN106423168A CN201610842703.8A CN201610842703A CN106423168A CN 106423168 A CN106423168 A CN 106423168A CN 201610842703 A CN201610842703 A CN 201610842703A CN 106423168 A CN106423168 A CN 106423168A
- Authority
- CN
- China
- Prior art keywords
- granulation
- blast furnace
- slag
- taper
- pelletizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002893 slag Substances 0.000 title claims abstract description 62
- 238000005469 granulation Methods 0.000 title claims abstract description 50
- 230000003179 granulation Effects 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003054 catalyst Substances 0.000 title claims abstract description 19
- 238000005336 cracking Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000010791 quenching Methods 0.000 claims abstract description 14
- 230000000171 quenching effect Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 230000008676 import Effects 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 5
- 239000010408 film Substances 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 230000002045 lasting effect Effects 0.000 claims description 3
- 238000009527 percussion Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000002028 Biomass Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000011269 tar Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000011285 coke tar Substances 0.000 description 3
- 238000007908 dry granulation Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/02—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention provides a method and device for preparing a tar cracking catalyst through liquid blast furnace slag granulation. The device is characterized by comprising a conical granulating device, a spraying device and an overflow type water cooling wall, iron ore powder with the mass fraction of 10%-20% is added to slag before granulation, the slag extends on the surface of the conical granulating device to form a film in the granulating process, the film is air-quenched into small particle drops under the effect of a high-pressure jet flow, then bumps with crushing blades for secondary crushing, is further air-quenched and granulated by a spirally rising airflow and finally falls onto the surface of the overflow type water cooling wall to perform heat exchange with a flowing water film for cooling. The device is compact in structure, integrates centrifugal granulation, mechanical crushing, air quenching and water cooling modes and can achieve efficient granulation and rapid heat exchange of liquid slag, and no mutual bonding occurs in the granulated slag output process. The slag granulating rate is 90% or above by adopting the method, a surface pore structure is developed, the active component content is high, and the tar cracking catalyst is an efficient biomass tar cracking catalyst.
Description
Technical field
The present invention relates to energy recovery utilizes field, and in particular to a kind of liquid blast furnace slag granulation produces coke tar cracking catalysis
The method and apparatus of agent.
Background technology
Blast furnace slag is the principal by product of steel manufacture process, and heat content is enriched, often produce 1 ton of pig iron want by-product 0.3～
0.6 ton of slag, slag per ton about contains（1.26～1.88）×106The sensible heat of kJ.High but its taste of waste heat amount contained by slag
Relatively low, at present, also do not find effective recovery and utilization ways.
Water quenching technology is the most widely used mode of current blast furnace Slag treatment, grain slag subsequent use path maturation, but base
Originally there is no the recovery of dross sensible heat, cause the energy and the water resource waste of flood tide.The dry-type sensible heat recovery technology of blast furnace slag has
Good prospect, according to slag granulation mode, dry granulation method mainly includes wind quenching method and centrifugal granulation method.
Either wind quenching or centrifugal granulation technology, its granulation mode is more single, and energy consumption is big, is granulated insufficient, granulation rate
Generally below 90%.And all using air as heat transferring medium, the coefficient of heat transfer is low, the gentle slag ratio of impact heat exchange rate, Jin Erzao
Become Air Compressor Equipment to maximize and the economic index of technique reduces.Additionally, blast furnace slag dry granulation technology, one of premise is to protect
Card blast furnace slag can be continuing with as a kind of resource after Exposure degree process is carried out, and otherwise the blast furnace slag of flood tide is piled up to enterprise
Industry is difficult to bear.Liquid blast furnace is a kind of multi-element metal melt, and the slag granules for being formed after dry granulation, except conduct
The additive of cement industry can also be used as the catalyst of biomass coke tar degraded using outer, and the cracking to tar has necessarily
Catalytic effect, but as its main active iron oxide content is low, reduce its catalysis activity to a certain extent.
Content of the invention
For the deficiencies in the prior art, the invention provides a kind of centrifugal granulation, Mechanical Crushing, wind quenching and water-cooled combine
Granulating device and method, to realizing the efficient granulation of molten slag and rapid heat exchange, so as to ensure product granulation rate 90% with
On, water consumption controls below 100kg/ ton slag, and granulated product can be used as the effective catalyst of biomass char oil-breaking.For realizing
Foregoing invention purpose, the present invention is achieved using following technical proposals：
The present invention provides the method and apparatus that a kind of liquid blast furnace slag granulation produces tar cracking catalyst, it is characterised in that should
Granulating device top has the import of liquid liquid blast furnace slag and high temperature air outlet, and middle part is provided with taper pelletizer；Granulating device
Inwall is provided with overflow-type water-cooling wall, is provided with flusher, under overflow-type water-cooling wall between taper pelletizer and overflow-type water-cooling wall
Portion has granulation slag particle outlet；The taper pelletizer top is taper, and bottom is cylinder, and periphery has multiple little
Hole, is equipped with multiple broken blades below aperture, and taper pelletizer bottom has pressure-air import；
The taper pelletizer cone angle is 30 ° ~ 90 °, and taper pelletizer lower cylindrical surface has diameter between 2 ~ 4mm
Aperture, percent opening be 30%, interlaced arrangement between aperture and broken blade, between broken blade and periphery angle β be 30 ° ~
60°.
Present invention also offers a kind of utilization said apparatus carry out liquid blast furnace slag granulation produces tar cracking catalyst
Method, it is characterised in that it comprises the following steps：
（1）Add the Iron Ore Powder of mass fraction 10% ~ 20% before granulation in liquid blast furnace；
（2）The taper pelletizer surface for falling high-speed rotation with the mixed liquid blast furnace of Iron Ore Powder, in centrifugal force and
Thin film is formed along the rapid extension of the conical surface in the presence of gravity to flow downward；
（3）The high pressure draught for being projected by taper pelletizer surface aperture, liquid slag wind quenching is become little particle drop, to overflow-type water
Collide with the broken blade of high-speed rotation during the motion of cold wall face, by second-time breakage Cheng Geng little under the percussion of mechanical force
Grain, while be granulated by the further wind quenching of spiralling air-flow；
（4）After little particle slag after the granulation falls overflow-type water-cooled wall surface, the moisture film of lasting and water-cooling wall Surface runoff
Heat exchange is cooled down further, and is snapped down to outlet at bottom along water-cooling wall；
（5）The high temperature air with certain pressure that granulation is produced enters waste-heat recovery device with the mixed gas of vapor and carries out
Recuperation of heat.
Further, in granulation, flusher can be opened and catalyst fines is sprayed to granulation slag particle surface.
Compared with prior art, advantages of the present invention and good effect are：
（1）By centrifugal granulation, Mechanical Crushing, wind quenching and water-cooling pattern combine, both realized the efficient granulation of molten slag with rapid
Heat exchange, ensure that product granulation rate more than 90% again, and water consumption controls below 100kg/ ton slag；
（2）The type of cooling for being combined with water-cooled using wind quenching, is accelerated the liquid-solid state phase transformation of high temperature grain slag, dramatically reduces
The cooling requisite space of grain slag, granulating device compact conformation, overcomes conventional centrifugal granulation or wind quenching occupation area of equipment is big
Shortcoming, the requirement of blast furnace bottom limited space can be met；
（3）Grain slag is transferred out by granulating device using the moisture film of flowing, it is to avoid the mutual bonding between slag particle；
（4）The water cooled rear porous surface of granulated slag granule, can be used as the catalyst of the pyrolysis fuel oils such as biomass decomposition, increased
Value-added content of product after Exposure degree.
Description of the drawings
Fig. 1 is liquid blast furnace slag granulation device
Fig. 2 blast furnace slag is used for biomass coke tar degraded catalytic performance test
In accompanying drawing：1 liquid blast furnace import；2 high temperature air steam outlets；3 taper pelletizers；4 overflow-type water-cooling walls；5 sprays
Spill device；6 granulation slag particle outlets；7 apertures；8 broken blades；9 pressure-air imports.
Specific embodiment
Embodiment 1
As shown in figure 1, the present invention provides a kind of liquid blast furnace slag granulation device, the granulating device top has liquid blast furnace and enters
Mouth 1 and high temperature air steam outlet 2, middle part is provided with taper pelletizer 3；Granulating device inwall is provided with overflow-type water-cooling wall 4, cone
Flusher 5 is provided between shape pelletizer 3 and overflow-type water-cooling wall 4, and 4 bottom of overflow-type water-cooling wall has granulation slag particle outlet 6；
3 top of taper pelletizer is taper, and bottom is cylinder, and periphery has multiple apertures 7, and multiple broken leaf are housed
Piece 8, taper pelletizer bottom has pressure-air import 9；
3 cone angle of taper pelletizer is 60 °, and 3 lower cylindrical surface of taper pelletizer has aperture 7 of the diameter in 2mm, perforate
Rate is 30%, interlaced arrangement between aperture 7 and broken blade 8, and broken blade 8 is 45 ° with periphery angle.
Present invention also offers a kind of utilization said apparatus carry out liquid blast furnace slag granulation produces tar cracking catalyst
Method, it is characterised in that it comprises the following steps：
（1）Add the Iron Ore Powder of mass fraction 20% before granulation in liquid blast furnace；
（2）The taper pelletizer surface for falling high-speed rotation with the mixed liquid blast furnace of Iron Ore Powder, in centrifugal force and
Thin film is formed along the rapid extension of the conical surface in the presence of gravity to flow downward；
（3）The high pressure draught for being projected by taper pelletizer surface aperture, liquid slag wind quenching is become little particle drop, to overflow-type water
Collide with the broken blade of high-speed rotation during the motion of cold wall face, by second-time breakage Cheng Geng little under the percussion of mechanical force
Grain, while be granulated by the further wind quenching of spiralling air-flow；
（4）After little particle slag after the granulation falls overflow-type water-cooled wall surface, the moisture film of lasting and water-cooling wall Surface runoff
Heat exchange is cooled down further, and is snapped down to outlet at bottom along water-cooling wall；
（5）The high temperature air with certain pressure that granulation is produced enters waste-heat recovery device with the mixed gas of vapor and carries out
Recuperation of heat.
Screening is collected to granulated product after, granulation rate reaches 95%, and grain slag particle diameter reaches 80% in below 2mm,
Between 2 to accounting for 18% between 4mm, slag fiber content is 2% or so.The grain slag for particle diameter being chosen in below 2mm is used as biomass
The catalyst of cracking, carries out copyrolysis with biomass at 900 DEG C, and pyrolysis product distribution is as shown in Figure 2：
As can be seen that compared with biomass individually cracking, when the blast furnace solid impurity particle that prepared using this method is as catalyst for cracking,
In pyrolysis product, gas yield substantially increases, and tar content then drastically declines, and shows Degradation and Transformation effect of the blast furnace slag to tar
Substantially, tar is largely converted into gas.By experimental result it can also be seen that the urging of blast furnace solid impurity particle for being prepared using this method
Change activity, close with conventional catalyst dolime.
Above example is only in order to illustrating technical scheme, rather than is limited；Although with reference to aforementioned reality
Apply example to be described in detail the present invention, for the person of ordinary skill of the art, still can be to aforementioned enforcement
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these are changed or replace
Change, do not make the essence of appropriate technical solution depart from the spirit and scope of claimed technical solution of the invention.
Claims (7)
1. a kind of liquid blast furnace slag granulation produces the method and apparatus of tar cracking catalyst, it is characterised in that the granulation dress
Top set portion has the import of liquid liquid blast furnace slag and high temperature air outlet, and middle part is provided with taper pelletizer；Granulating device inwall sets
There is overflow-type water-cooling wall, flusher between taper pelletizer and overflow-type water-cooling wall, is provided with, overflow-type water-cooling wall bottom has
Granulation slag particle outlet；
The taper pelletizer top is taper, and bottom has multiple apertures for cylinder, periphery, equipped with many below aperture
Individual broken blade, taper pelletizer bottom has pressure-air import.
2. a kind of liquid blast furnace slag granulation device according to claim 1, it is characterised in that：The taper pelletizer cone angle
α is 30 ° ~ 90 °.
3. a kind of liquid blast furnace slag granulation device according to claim 1, it is characterised in that：The taper pelletizer bottom
Periphery has aperture of the diameter between 2 ~ 4mm, and percent opening is 10% ~ 30%.
4. a kind of liquid blast furnace slag granulation device according to claim 1, it is characterised in that：The taper pelletizer surface
Aperture and broken blade between interlaced arrangement.
5. a kind of liquid blast furnace slag granulation device according to claim 1, it is characterised in that：The taper pelletizer surface
Between broken blade and periphery, angle β is 30 ° ~ 60 °.
6. using the device described in claim 1, the method that liquid blast furnace slag granulation produces tar cracking catalyst is carried out, which is special
Levy and be that it comprises the following steps：
（1）Add the Iron Ore Powder of mass fraction 10% ~ 20% before granulation in liquid blast furnace；
（2）The taper pelletizer surface for falling high-speed rotation with the mixed liquid blast furnace of Iron Ore Powder, in centrifugal force and
Thin film is formed along the rapid extension of the conical surface in the presence of gravity to flow downward；
（3）The high pressure draught for being projected by taper pelletizer surface aperture, liquid slag wind quenching is become little particle drop, to overflow-type water
Collide with the broken blade of high-speed rotation during the motion of cold wall face, by second-time breakage Cheng Geng little under the percussion of mechanical force
Grain, while be granulated by the further wind quenching of spiralling air-flow；
（4）After little particle slag after the granulation falls overflow-type water-cooled wall surface, the moisture film of lasting and water-cooling wall Surface runoff
Heat exchange is cooled down further, and is snapped down to outlet at bottom along water-cooling wall；
（5）The high temperature air with certain pressure that granulation is produced enters waste-heat recovery device with the mixed gas of vapor and carries out
Recuperation of heat.
7. the method that a kind of liquid blast furnace slag granulation according to claim 6 produces tar cracking catalyst, its feature exists
In：In the granulation, flusher can be opened and catalyst fines is sprayed to granulation slag particle surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610842703.8A CN106423168B (en) | 2016-09-23 | 2016-09-23 | A kind of liquid blast furnace slag granulation produces the method and apparatus of tar cracking catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610842703.8A CN106423168B (en) | 2016-09-23 | 2016-09-23 | A kind of liquid blast furnace slag granulation produces the method and apparatus of tar cracking catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106423168A true CN106423168A (en) | 2017-02-22 |
| CN106423168B CN106423168B (en) | 2018-10-12 |
Family
ID=58167208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610842703.8A Expired - Fee Related CN106423168B (en) | 2016-09-23 | 2016-09-23 | A kind of liquid blast furnace slag granulation produces the method and apparatus of tar cracking catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106423168B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760383A (en) * | 2017-11-13 | 2018-03-06 | 中国矿业大学(北京) | Blast furnace slag waste heat catalytic pyrolysis biomass gas technology |
| CN113117678A (en) * | 2021-04-07 | 2021-07-16 | 青岛理工大学 | Metallurgical slag granulation-catalyst preparation and modification integrated device system and method |
| CN113578339A (en) * | 2021-08-02 | 2021-11-02 | 刘文博 | Method for preparing denitration catalyst by utilizing waste heat of steel vanadium-titanium process |
| CN113877697A (en) * | 2021-10-12 | 2022-01-04 | 东北大学 | Melt impact crushing and granulating system and method |
| CN114410858A (en) * | 2022-03-14 | 2022-04-29 | 唐山市嘉恒实业有限公司 | Comprehensive treatment system and method for molten liquid slag |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540895A (en) * | 1994-06-03 | 1996-07-30 | Paul Wurth S.A. | Device for the treatment of mixture of steam and air contaminated with sulphurous gases, formed during the granulation and dehydration of blast furnace slag |
| CN101665845A (en) * | 2009-09-28 | 2010-03-10 | 清华大学 | Liquid blast furnace slag granulation method and device thereof |
| CN105603135A (en) * | 2016-03-11 | 2016-05-25 | 西安交通大学 | High-temperature liquid-state slag dry type centrifugation and granulation waste heat recycling system and method |
| CN105755188A (en) * | 2016-03-11 | 2016-07-13 | 西安交通大学 | Moving bed device for granulating high-temperature liquid slag and recovering high-temperature sensible heat |
-
2016
- 2016-09-23 CN CN201610842703.8A patent/CN106423168B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540895A (en) * | 1994-06-03 | 1996-07-30 | Paul Wurth S.A. | Device for the treatment of mixture of steam and air contaminated with sulphurous gases, formed during the granulation and dehydration of blast furnace slag |
| CN101665845A (en) * | 2009-09-28 | 2010-03-10 | 清华大学 | Liquid blast furnace slag granulation method and device thereof |
| CN105603135A (en) * | 2016-03-11 | 2016-05-25 | 西安交通大学 | High-temperature liquid-state slag dry type centrifugation and granulation waste heat recycling system and method |
| CN105755188A (en) * | 2016-03-11 | 2016-07-13 | 西安交通大学 | Moving bed device for granulating high-temperature liquid slag and recovering high-temperature sensible heat |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107760383A (en) * | 2017-11-13 | 2018-03-06 | 中国矿业大学(北京) | Blast furnace slag waste heat catalytic pyrolysis biomass gas technology |
| CN113117678A (en) * | 2021-04-07 | 2021-07-16 | 青岛理工大学 | Metallurgical slag granulation-catalyst preparation and modification integrated device system and method |
| CN113578339A (en) * | 2021-08-02 | 2021-11-02 | 刘文博 | Method for preparing denitration catalyst by utilizing waste heat of steel vanadium-titanium process |
| CN113877697A (en) * | 2021-10-12 | 2022-01-04 | 东北大学 | Melt impact crushing and granulating system and method |
| CN114410858A (en) * | 2022-03-14 | 2022-04-29 | 唐山市嘉恒实业有限公司 | Comprehensive treatment system and method for molten liquid slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106423168B (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106423168A (en) | Method and device for preparing tar cracking catalyst through liquid blast furnace slag granulation | |
| CN105603135B (en) | A kind of high-temperature liquid state slag dry-type centrifugal granulation residual neat recovering system and method | |
| CN101921884B (en) | Blast furnace slag dry-type sensible heat recovery system and production process | |
| CN103014202B (en) | Device and method for recovering high-temperature sensible heat of liquid blast furnace slag | |
| CN101871025B (en) | Metallurgical molten slag dry-type processing device and processing method thereof | |
| CN102766706B (en) | Coal gasification system for waste heat of blast furnace slag | |
| CN105087844B (en) | Blast furnace slag waste heat recovery and direct reduction joint production system and method | |
| CN105087835B (en) | System and method for recycling high-temperature slag waste heat in coal gasification manner | |
| CN102329900B (en) | Liquid steel slag dry-process granulating device and sensible heat recovery method | |
| CN105621906A (en) | Metallurgical molten slag granulation treatment system and method | |
| EP4112749A1 (en) | Blast furnace slag granulation and waste heat recovery and utilization device and method | |
| CN112146446B (en) | Blast furnace slag granulation heat exchange device based on multi-medium coupling | |
| CN106755660B (en) | A kind of foamed slag dilute phase dry granulation methods based on steel mill's solid waste melting and reducing | |
| CN105834442B (en) | Liquid alloy dry granulation and methane vapor reforming waste-heat recovery device and method | |
| CN105154604B (en) | Improve the method and device of Iron-smelting efficiency | |
| CN108796147B (en) | Blast furnace slag granulation and waste heat recovery method | |
| WO2010148983A1 (en) | Method for pelleting spherical fine particle of sodium nitrate | |
| CN110819746A (en) | Method and device for recycling heat energy of molten metallurgical slag | |
| CN104109742B (en) | A kind of injection solid impurity particle hits broken melting slag waste heat recovery system | |
| CN104141020A (en) | Evaporator and high temperature molten slag dry process waste heat recovery system | |
| JP4418489B2 (en) | High temperature slag treatment method | |
| CN219174524U (en) | Device for rapidly cooling slag by utilizing atomizing nozzle | |
| CN107974522A (en) | The retracting device and method of a kind of blast-furnace cement sensible heat | |
| CN102329901A (en) | Liquid-state steel slag micronization recycling device | |
| CN201825962U (en) | Dry-type metallurgical molten slag treating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 |