CN101665845A - Liquid blast furnace slag granulation method and device thereof - Google Patents
Liquid blast furnace slag granulation method and device thereof Download PDFInfo
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- CN101665845A CN101665845A CN200910093757A CN200910093757A CN101665845A CN 101665845 A CN101665845 A CN 101665845A CN 200910093757 A CN200910093757 A CN 200910093757A CN 200910093757 A CN200910093757 A CN 200910093757A CN 101665845 A CN101665845 A CN 101665845A
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- 238000005469 granulation Methods 0.000 title claims abstract description 68
- 230000003179 granulation Effects 0.000 title claims abstract description 67
- 239000002893 slag Substances 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000007787 solid Substances 0.000 claims abstract description 26
- 239000011819 refractory material Substances 0.000 claims abstract description 4
- 238000007908 dry granulation Methods 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 22
- 238000009826 distribution Methods 0.000 claims description 18
- 239000003818 cinder Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 16
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000010791 quenching Methods 0.000 abstract description 9
- 230000000171 quenching effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 2
- 230000003116 impacting effect Effects 0.000 abstract 1
- 239000012071 phase Substances 0.000 abstract 1
- 239000007790 solid phase Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000012159 carrier gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
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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 invention relates to liquid blast furnace slag granulation method and device thereof, belonging to the technical field of blast furnace utilization in the metallurgy industry. The device comprisesa diversion trench, a slag dropping hole, a granulation device, two or more granulation nozzles and a slag discharging hole. The invention realizes dry process quenching granulation adopting high-speed gas and solid phases carrying solid granules as granulation media, impacting liquid blast furnace slag to crushing, and quenching and solidifying into small granules. In the granulation device, thediversion trench is built by refractory materials and is arranged at the top of the granulation device, the lowest point of the diversion trench is provided with the slag dropping hole which is communicated with the granulation device, the upper part of the granulation device is provided with the granulation nozzles, and an included angle between the outlet axes and the vertical direction of thegranulation nozzles is more than 0 degree and is less than or equal to 90 degrees. The granulation nozzles can be arranged at one side or are symmetrically arranged or circularly arranged by using a center perpendicular line of the slag dropping hole as the center of a circle. The invention strengthens the granulation effect and lowers the power consumption and the equipment investment of the granulation device by utilizing the capacity of crushing the liquid blast furnace slag by a gas-solid two-phase strong jet flow.
Description
Technical field
The present invention relates to a kind of liquid blast furnace slag granulation method and device thereof, belong to the technical field of blast furnace utilization of metallurgy industry.
Background technology
Blast furnace slag is a kind of well behaved silicate material, can be used as the raw material of producing material of construction and chemical fertilizer by processing.Liquid blast furnace is through quick cooling, its inside has little time to form crystallizable mineral and a part of chemical energy is stored in the vitreum of formation, thereby has a higher activity, blast furnace slag after chilling is handled has potential hydraulic gelling property, be good cement raw material, so the blast furnace slag that chilling is handled have great demand.
Simultaneously, the liquid blast furnace temperature belongs to high-grade residual heat resources between 1350 ℃ to 1500 ℃, has very high recycling and is worth.
China's liquid blast furnace mainly adopts the water quenching chilling to handle at present, and the blast furnace slag after the shrend can be used for making material of construction such as cement, and the problem that water quenching exists is: the water consumption is high; The a large amount of H that produce in the Water Quenching Slag process
2S and SO
xEnter atmosphere with steam, promote acid rain to form environmental pollution; The sensible heat of blast furnace slag does not obtain recycling; Water Quenching Slag water ratio height still needs drying treatment as cement raw material, needs to consume certain energy; System's power consumption is big; Contained subparticle is very serious to the wearing and tearing and the obstruction of parts such as water pump and valve in the flush slag recirculated water, and the system maintenance work amount is very big, has increased maintenance cost.
Shortcoming at blast furnace cinder water quenching technology; the seventies in 20th century external dry type chilling granulated bf slag that just begun one's study method; mainly contain wind quench method and centrifugal granulation method; the two all be at first that liquid blast furnace is fast broken, be solidified as small-particle, take technique means to reclaim the method for its sensible heat again.The wind method of quenching be with high-power granulation blower fan produce high pressure, high velocity air with slag stream dispel, the method for granulation, main drawback is that power consumption is big, equipment bulky complex, floor space are big, investment and working cost height.The centrifugal granulation method is to rely on centrifugal force that the high speed rotating of rotating disk or revolving cup produces with liquid blast furnace slag granulation; though do not need the such highly energy-consuming equipment of granulation blower fan; and the size distribution of grain slag is also less; but at high temperature the mechanical reliability of high speed rotating granulating device is relatively poor, and its adaptability to load change also remains to be proved conclusively.
The granulation of liquid blast furnace reclaims all significant for the utilization again of the such solid waste of blast furnace slag and liquid blast furnace sensible heat, study that a kind of power consumption is low, granulation is effective, simple structure, high reliability granulating method be very important.
Summary of the invention
The purpose of this invention is to provide a kind of power consumption dry granulation methods low, simple in structure and device.
Technical scheme of the present invention is as follows:
A kind of liquid blast furnace dry granulation methods; this method is that liquid blast furnace is flowed into the dry granulation device by diversion trench; carry the Dual-Phrase Distribution of Gas olid of solid particulate by the ejection of granulation nozzle; liquid blast furnace slag is broken under the impact of Dual-Phrase Distribution of Gas olid; and cooled and solidified is small-particle, discharges through slag-drip opening then.Gas in this method in the Dual-Phrase Distribution of Gas olid is pressurized air, high-pressure inert gas or high pressure steam; The pressure of described pressurized air and high-pressure inert gas is 0.05～1.0MPa, and the pressure of high pressure steam is 0.1～10.0MPa.Chemical reaction does not take place and remains solid-stately in flow process in solid particulate that the air-flow in the described Dual-Phrase Distribution of Gas olid carries and air-flow, and particle size range is 80% of the quality of the solid particulate of the 0.1～0.5mm solid particulate total mass that accounts for gas-entrained.
The invention provides a kind of liquid blast furnace dry granulation device, it is characterized in that: described liquid blast furnace slag granulation device comprises diversion trench, the cinder notch that falls, pelletizer, granulation nozzle and slag-drip opening, described diversion trench is built by laying bricks or stones with refractory materials and is formed, be arranged on the pelletizer top, the described cinder notch that falls is arranged on the bottom of diversion trench, and is communicated with the dry granulation device; The described cinder notch that falls is a taper shape wide at the top and narrow at the bottom; Pelletizer top is provided with at least one granulation nozzle, and granulation jet exit central axis and vertical direction angle α are greater than 0 ° and smaller or equal to 90 °; Described slag-drip opening is arranged on the lowest part of the bottom of dry granulation device.
In the technique scheme, described granulation nozzle can be single-sided arrangement, and the bottom surface of dry granulation device tilts along the axis direction of granulation nozzle.
In the technique scheme, described granulation nozzle can also be the bilateral symmetric arrangement, or is that center of circle hoop is arranged with the cinder notch center vertical line that falls.
The present invention compared with prior art has the following advantages and the high-lighting effect: the present invention adopts the air-flow that carries solid particulate as the granulation medium, has strengthened the surging force of liquid towards blast furnace slag, has strengthened the effect of dry granulation, and can reduce the air-flow consumption; Advantages such as that the present invention also has is simple in structure, environmental protection and energy saving.
Description of drawings
Fig. 1 is a liquid blast furnace slag granulation device granulation nozzle single-sided arrangement embodiment synoptic diagram provided by the present invention.
Fig. 2 is a liquid blast furnace slag granulation device granulation set of nozzles symmetric arrangement embodiment synoptic diagram provided by the present invention.
Among the figure: the 1-diversion trench; The 2-cinder notch that falls; 3-dry granulation device; 4-granulation nozzle; The 5-slag-drip opening.
Embodiment
Describe concrete structure, principle of work and the embodiment of this device in detail below in conjunction with accompanying drawing.
The present invention includes diversion trench 1, the cinder notch 2 that falls, dry granulation device 3, granulation nozzle 4, slag-drip opening 5.Diversion trench 1 is built by laying bricks or stones with refractory materials and is formed, and is arranged on the pelletizer top, and the diversion trench lower-most point is provided with cinder notch 2 and is communicated with dry granulation device 3, and the cinder notch 2 that falls is truncated cone-shaped, and is wide at the top and narrow at the bottom.Flow into diversion trench 1 from the liquid blast furnace of blast furnace residue channel or slag ladle, flow out and vertical drop enters pelletizer 3 from the cinder notch 2 that falls of diversion trench 1 bottom.Pelletizer 3 tops are provided with granulation nozzle 4, and granulation nozzle 4 outlet axis and vertical direction angle α are 0～90 °, can make the oblique cutting liquid blast furnace of granulation medium.Medium is the high velocity air that carries solid particulate in the granulation nozzle 4, forms the high speed Dual-Phrase Distribution of Gas olid.Be used for cutting, the Dual-Phrase Distribution of Gas olid entrained solids particulate carrier gas stream of granulation high-temperature liquid state blast furnace slag is pressurized air or high-pressure inert gas or high pressure steam; the pressure of employed pressurized air or high-pressure inert gas is 0.05～1.0MPa, and the pressure of high pressure steam is 0.1～10.0MPa.Chemical reaction does not take place and remains solid-state in flow process in solid particulate that carrier gas stream is carried and carrier gas stream.In the dirty process of liquid blast furnace, the high speed Dual-Phrase Distribution of Gas olid blows to liquid blast furnace with specific direction, and liquid blast furnace is broken, cooled and solidified is a small-particle fast in high speed Dual-Phrase Distribution of Gas olid striking process therewith.Because its density and momentum improve behind the air-flow entrained solids particle; can strengthen the surging force of air-flow liquid towards blast furnace slag greatly; thereby obtain the littler granulated bf slag particle of median size; strengthened the effect of granulation; under the prerequisite that guarantees the granulation effect; the consumption of high pressure gas be can reduce, thereby the power consumption of granulating device and the investment of equipment reduced.Granulation moving gaseouse medium entrained solid particle; can be blast furnace slag particle with certain grain size distribution, sand grains etc.; also can adopt other not with carrier gas stream generation chemical reaction and in flow process, remain solid-state solid particulate; can also be by carrying the particle that special component constitutes secretly; constitute with the composition that changes blast furnace slag, for the back utilization of blast furnace slag facilitates.Usually, the particle size range of carrying secretly in the Dual-Phrase Distribution of Gas olid is 80% of the quality of the solid particulate of the 0.1～0.5mm solid particulate total mass that accounts for gas-entrained, that is the solid grain size of 80wt% concentrates on 0.1～0.5mm in the Dual-Phrase Distribution of Gas olid, and the solid grain size of having only 10wt% is less than 0.1mm, and other has an appointment the solid grain size of 10wt% greater than 0.5mm.
The granulation nozzle can be provided with two or more, and the granulation nozzle can single-sided arrangement, or symmetric arrangement, or is that center of circle hoop is arranged with the cinder notch center vertical line that falls.Fig. 1 is a liquid blast furnace dry granulation device granulation nozzle single-sided arrangement embodiment synoptic diagram; single or two be arranged on pelletizer top one side to plural granulation nozzle; as be more than two, then the granulation nozzle forms the granulation set of nozzles for being arranged in parallel up and down.Fig. 2 is a liquid blast furnace slag granulation system granulation nozzle symmetric arrangement synoptic diagram, and two or more granulation nozzles are arranged on the both sides on pelletizer top, symmetric arrangement; The granulation nozzle of the same side forms one group of granulation set of nozzles for being arranged in parallel up and down.Plural nozzle or set of nozzles can also be that center of circle hoop is arranged with the cinder notch center vertical line that falls.
Enter follow-up heat-exchanger rig heat exchange through the blast furnace slag particle of discharging from slag-drip opening after the granulation, produce hot blast or steam and use or generating for producing; From the hot gas that contains dust in addition that slag-drip opening is discharged, its heat content can be recycled, and for preventing dust pollution, this gas discharges after the fly-ash separator dedusting.
Blast furnace slag dry granulation methods involved in the present invention, its principle is to utilize the barotropic gas of having carried solid particulate secretly, form the high speed Dual-Phrase Distribution of Gas olid, under the guiding of variable capacity atomizer, high-speed impact mobile blast furnace slag, the pyritous molten slag is carried out horizontal or oblique cutting, and it is granular that the momentum exchange of gas-solid dual-phase jet and fluid slag is fragmented into molten slag; Cracked at molten slag is in the process that falls of particle and flight aloft because the radiating effect, and solidify rapidly on the blast furnace slag surface after cracked, finishes the dry granulation process.Control the flow of molten slag, and control direction, the gentle phase pressure of gas-solid flow rate of Dual-Phrase Distribution of Gas olid, can obtain the blast furnace slag solid particulate of different-grain diameter scope, so that follow-up Btu utilization.
Claims (7)
1. liquid blast furnace dry granulation device, it is characterized in that: described liquid blast furnace slag granulation device comprises diversion trench (1), the cinder notch that falls (2), dry granulation device (3), granulation nozzle (4) and slag-drip opening (5), described diversion trench is arranged on dry granulation device (3) top, the described cinder notch (2) that falls is arranged on the bottom of diversion trench (1), and is communicated with dry granulation device (3); Described dry granulation device (3) top is provided with at least one granulation nozzle (4), and the angle α of granulation nozzle (4) export center axis and vertical direction is greater than 0 ° and smaller or equal to 90 °; Described slag-drip opening (5) is arranged on the lowest part of the bottom of dry granulation device (3).
2. dry granulation device according to claim 1 is characterized in that: described granulation nozzle (4) is a single-sided arrangement, and the bottom surface of dry granulation device tilts along the axis direction of granulation nozzle.
3. dry granulation device according to claim 1 is characterized in that: described granulation nozzle (4) is the bilateral symmetric arrangement, or is that center of circle hoop is arranged with the cinder notch that falls (2) center vertical line.
4. dry granulation device according to claim 1 is characterized in that: described diversion trench (1) is built by laying bricks or stones with refractory materials and is formed, and the described cinder notch (2) that falls is a taper shape wide at the top and narrow at the bottom.
5. liquid blast furnace dry granulation methods that employing is installed according to claim 1; it is characterized in that: this method is that liquid blast furnace is flowed into the dry granulation device by diversion trench; carry the Dual-Phrase Distribution of Gas olid of solid particulate by the ejection of granulation nozzle; liquid blast furnace slag is broken under the impact of Dual-Phrase Distribution of Gas olid; and cooled and solidified is small-particle, discharges through slag-drip opening (5) then.
6. dry granulation methods according to claim 5 is characterized in that: the gas in the described Dual-Phrase Distribution of Gas olid is pressurized air, high-pressure inert gas or high pressure steam; The pressure of described pressurized air and high-pressure inert gas is 0.05～1.0MPa, and the pressure of high pressure steam is 0.1～10.0MPa.
7. dry granulation methods according to claim 5 is characterized in that; Chemical reaction does not take place and remains solid-stately in flow process in solid particulate that the air-flow in the described Dual-Phrase Distribution of Gas olid carries and air-flow, and particle size range is 80% of the quality of the solid particulate of the 0.1～0.5mm solid particulate total mass that accounts for gas-entrained.
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| CN2009100937579A CN101665845B (en) | 2009-09-28 | 2009-09-28 | Liquid blast furnace slag granulation method and device thereof |
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| CN2009100937579A CN101665845B (en) | 2009-09-28 | 2009-09-28 | Liquid blast furnace slag granulation method and device thereof |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824499A (en) * | 2010-03-19 | 2010-09-08 | 昆明阳光基业股份有限公司 | Liquid blast furnace slag granulation device and granulation method thereof |
| CN101831516A (en) * | 2010-05-28 | 2010-09-15 | 张登山 | Steel slag dry processing device and method |
| CN102329901A (en) * | 2011-10-14 | 2012-01-25 | 无锡市东方环境工程设计研究所有限公司 | Liquid-state steel slag micronization recycling device |
| CN102329900A (en) * | 2011-09-30 | 2012-01-25 | 中国科学院过程工程研究所 | Liquid steel slag dry-process granulating device and sensible heat recovery method |
| CN102690908A (en) * | 2012-05-31 | 2012-09-26 | 四川川润股份有限公司 | Heat recovery system and heat recovery process of blast-furnace slag by dry granulation |
| CN102690910A (en) * | 2012-05-31 | 2012-09-26 | 四川川润股份有限公司 | Dry-method treatment and waste heat continuous utilization system for blast-furnace slag |
| CN104388610A (en) * | 2014-11-20 | 2015-03-04 | 清华大学 | Metallurgical molten slag granulation and heat energy recovery device |
| CN104848230A (en) * | 2015-05-31 | 2015-08-19 | 北京四维天拓技术有限公司 | Cyclone incinerator |
| CN105296691A (en) * | 2015-11-25 | 2016-02-03 | 南京圣诺热管有限公司 | High-temperature molten slag spraying granulating device |
| CN106381353A (en) * | 2016-10-14 | 2017-02-08 | 北京立化科技有限公司 | Pelletizing system for processing high-temperature liquid-state slag |
| CN106435062A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | High-temperature molten slag granulation system |
| CN106435063A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | Molten furnace slag granulation system |
| CN106435064A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | High-temperature molten slag granulation system |
| CN106423168A (en) * | 2016-09-23 | 2017-02-22 | 青岛理工大学 | Method and device for preparing tar cracking catalyst through liquid blast furnace slag granulation |
| CN106435061A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | Furnace slag granulation system with automatic cleaning function |
| CN107723397A (en) * | 2017-11-21 | 2018-02-23 | 中山蓝冰节能环保科技有限公司 | Clinker wind quenching granulating device |
| CN108660269A (en) * | 2018-07-17 | 2018-10-16 | 中能立化科技有限公司 | A kind of jet stream granulation spray gun and slag granulating heat-exchanger rig |
| CN109207659A (en) * | 2018-10-06 | 2019-01-15 | 天津大学 | A kind of granulating device and heat recovery method of liquid slag |
| CN114807463A (en) * | 2022-05-26 | 2022-07-29 | 河北用邦环保设备科技有限公司 | Slag quenching and granulating equipment |
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| CN100424187C (en) * | 2006-07-20 | 2008-10-08 | 重庆大学 | Liquid blast furnace slag heat recovering apparatus and method |
| CN1900324A (en) * | 2006-07-26 | 2007-01-24 | 重庆大学 | Liquid slag wind chilling treating method for improving high titanium type blast furnace slag particle property |
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- 2009-09-28 CN CN2009100937579A patent/CN101665845B/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824499A (en) * | 2010-03-19 | 2010-09-08 | 昆明阳光基业股份有限公司 | Liquid blast furnace slag granulation device and granulation method thereof |
| CN101824499B (en) * | 2010-03-19 | 2011-11-30 | 昆明阳光基业股份有限公司 | Liquid blast furnace slag granulation device and granulation method thereof |
| CN101831516A (en) * | 2010-05-28 | 2010-09-15 | 张登山 | Steel slag dry processing device and method |
| CN102329900A (en) * | 2011-09-30 | 2012-01-25 | 中国科学院过程工程研究所 | Liquid steel slag dry-process granulating device and sensible heat recovery method |
| CN102329900B (en) * | 2011-09-30 | 2013-05-01 | 中国科学院过程工程研究所 | Liquid steel slag dry-process granulating device and sensible heat recovery method |
| CN102329901A (en) * | 2011-10-14 | 2012-01-25 | 无锡市东方环境工程设计研究所有限公司 | Liquid-state steel slag micronization recycling device |
| CN102690908A (en) * | 2012-05-31 | 2012-09-26 | 四川川润股份有限公司 | Heat recovery system and heat recovery process of blast-furnace slag by dry granulation |
| CN102690910A (en) * | 2012-05-31 | 2012-09-26 | 四川川润股份有限公司 | Dry-method treatment and waste heat continuous utilization system for blast-furnace slag |
| CN102690908B (en) * | 2012-05-31 | 2014-01-22 | 四川川润股份有限公司 | Heat recovery system and heat recovery process of blast-furnace slag by dry granulation |
| CN104388610A (en) * | 2014-11-20 | 2015-03-04 | 清华大学 | Metallurgical molten slag granulation and heat energy recovery device |
| CN104848230B (en) * | 2015-05-31 | 2017-01-25 | 北京四维天拓技术有限公司 | Cyclone incinerator |
| CN104848230A (en) * | 2015-05-31 | 2015-08-19 | 北京四维天拓技术有限公司 | Cyclone incinerator |
| CN105296691A (en) * | 2015-11-25 | 2016-02-03 | 南京圣诺热管有限公司 | High-temperature molten slag spraying granulating device |
| CN106423168B (en) * | 2016-09-23 | 2018-10-12 | 青岛理工大学 | A kind of liquid blast furnace slag granulation produces the method and apparatus of tar cracking catalyst |
| CN106423168A (en) * | 2016-09-23 | 2017-02-22 | 青岛理工大学 | Method and device for preparing tar cracking catalyst through liquid blast furnace slag granulation |
| CN106435062A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | High-temperature molten slag granulation system |
| CN106435063A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | Molten furnace slag granulation system |
| CN106435064A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | High-temperature molten slag granulation system |
| CN106435061A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | Furnace slag granulation system with automatic cleaning function |
| CN106381353A (en) * | 2016-10-14 | 2017-02-08 | 北京立化科技有限公司 | Pelletizing system for processing high-temperature liquid-state slag |
| CN107723397A (en) * | 2017-11-21 | 2018-02-23 | 中山蓝冰节能环保科技有限公司 | Clinker wind quenching granulating device |
| CN108660269A (en) * | 2018-07-17 | 2018-10-16 | 中能立化科技有限公司 | A kind of jet stream granulation spray gun and slag granulating heat-exchanger rig |
| CN109207659A (en) * | 2018-10-06 | 2019-01-15 | 天津大学 | A kind of granulating device and heat recovery method of liquid slag |
| CN114807463A (en) * | 2022-05-26 | 2022-07-29 | 河北用邦环保设备科技有限公司 | Slag quenching and granulating equipment |
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| CN101665845B (en) | 2011-06-15 |
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