CN105200183B - A kind of converter gas dry method dust two-fluid spray nozzle operation process - Google Patents
A kind of converter gas dry method dust two-fluid spray nozzle operation process Download PDFInfo
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- CN105200183B CN105200183B CN201510748595.3A CN201510748595A CN105200183B CN 105200183 B CN105200183 B CN 105200183B CN 201510748595 A CN201510748595 A CN 201510748595A CN 105200183 B CN105200183 B CN 105200183B
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- devaporizer
- converter gas
- operation process
- spray nozzle
- dedusting
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Abstract
The invention discloses a kind of converter gas dry method dust two-fluid spray nozzle operation process.The technique is that after converter gas enters devaporizer, the two-fluid spray nozzle set from devaporizer carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 2.50 ~ 3.00m3/ h, water pressure >=1.15MPa, atomizing medium pressure >=0.75MPa.Operation process of the present invention is optimized to every physical parameter of atomized liquid by accurately setting the operational factor of two-fluid spray nozzle in devaporizer in converter gas dry-dedusting system, effectively improves dedusting, the cooling-down effect of flue gas.Obtained dedusting ash drying is fluidity good, and the dustiness of flue gas is only the 1/10 of discharging standards.By dedusting, cooling, it is not only able to obtain high-quality flue gas, also helps the stable operation for ensureing converter smelting equipment, had a very important role for enterprise's cost efficiency.
Description
Technical field
The invention belongs to converter gas dry dedusting technology field, and in particular to a kind of converter gas dry method dust double fluid
Body nozzle operation process.
Background technology
Converter dry dust pelletizing system is the pith combined closely with converter steelmaking process, as country is to smelting
Produce the pay attention to day by day of energy-saving and environmental protection, it is efficient to converter dedusting line, reliable, stably run and also propose higher requirement.
The physical process in devaporizer in converter dry dust pelletizing system is that a gas, liquid, solid multiphase for being related to phase-change heat transfer is answered
Miscellaneous flow process, it is the further requirement for reducing the temperature and dustiness of flue gas, reaching into gas chamber that it, which is acted on,.Realize evaporation
The accurate setting of two-fluid spray nozzle operation process and control, are not only advantageous to improve the dust removing effects of flue gas, improve in cooler
Dedusting ash dries fluidization characteristic, also helps dust pelletizing system and is run under the operating mode of safety, and this is for ensureing business stability, length
Effect, quota, the production of high-quality have a very important role.
The content of the invention
It is an object of the invention to provide a kind of converter gas dry method dust two-fluid spray nozzle operation process.
The object of the present invention is achieved like this, the converter gas dry method dust two-fluid spray nozzle operation process, is
After converter gas enters devaporizer, the two-fluid spray nozzle set from devaporizer is carried out to flue gas injection water smoke
Dedusting, cooling, the operational factor used include：Water-carrying capacity is 2.50 ~ 3.00m3/ h, water pressure >=1.15MPa, atomizing medium
Pressure >=0.75MPa.
Operation process of the present invention is double in devaporizer by accurately setting in converter gas dry-dedusting system
The operational factor of fluid tip, is optimized to every physical parameter of atomized liquid, atomized liquid is contacted with high-temperature flue gas
3 ~ 5s in i.e. all vaporizations, and reheat to form undersaturated superheated steam by flue gas, relative humidity is 10 ~ 20%, is occurred without
Any mechanical water.By the optimization of two-fluid spray nozzle operational factor, dedusting, the cooling-down effect of flue gas are effectively improved.Obtain
Dedusting ash drying is fluidity good, and the dustiness of flue gas is only the 1/10 of discharging standards.By dedusting, cooling, not only can
High-quality flue gas is enough obtained, production added value is improved, the stable operation for ensureing converter smelting equipment is also helped, for enterprise
Cost efficiency has a very important role.
Embodiment
The present invention is further illustrated below, but the present invention is not any limitation as in any way, based on the present invention
Any conversion or replacement that training centre is made, belong to protection scope of the present invention.
Converter gas dry method dust two-fluid spray nozzle operation process of the present invention, is to enter to evaporate in converter gas
After cooler, the two-fluid spray nozzle set from devaporizer carries out dedusting, cooling, used to flue gas injection water smoke
Operational factor includes：Water-carrying capacity is 2.50 ~ 3.00m3/ h, water pressure >=1.15MPa, atomizing medium pressure >=0.75MPa.
The mass velocity of the converter gas is 3.600 ~ 3.900kg/m2.s。
The mass velocity of the converter gas is preferably 3.748 kg/m2.s。
The architectural characteristic of the devaporizer is tower structure, nozzle cloth in the way of the every 36 ° of arrangements one in cross section
Put.
In described operational factor, water-carrying capacity is preferably 2.65 ~ 2.85m3/h。
In described operational factor, water-carrying capacity is even more preferably 2.75 m3/h。
In described operational factor, water pressure is preferably 1.15 ~ 1.50MPa.
In described operational factor, water pressure is more preferably 1.20 ~ 1.40MPa.
In described operational factor, water pressure is even more preferably 1.27MPa.
In described operational factor, atomizing medium pressure is preferably 0.75 ~ 1.50MPa.
In described operational factor, atomizing medium pressure is more preferably 0.85 ~ 1.25MPa.
In described operational factor, atomizing medium pressure is even more preferably 0.90MPa.
Described atomizing medium is steam.
Temperature of the described converter gas at devaporizer import is 750 ~ 900 DEG C, the temperature in exit for 239 ~
270℃。
Dust content of the described converter gas at devaporizer import is 80 ~ 150g/Nm3, the dust in exit
Content is 35 ~ 75g/Nm3。
Embodiment 1
--- elder brother's steel 120t converter gas dry method dust two-fluid spray nozzle operation process
Treat that temperature of the converter gas of dedusting, cooling at devaporizer import is 750 DEG C, dust content is 138g/
Nm3, mass velocity is 3.748kg/m2.s.After converter gas enters devaporizer, what is set in devaporizer is double
Fluid tip carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 2.75m3/ h, water
Pressure is 1.27MPa, and atomizing medium is steam, and pressure is 0.90MPa.Removing dust, the converter gas of cooling are in devaporizer
The temperature in exit is 247 DEG C, and dust content is 55g/Nm3.
Embodiment 2
--- elder brother's steel 120t converter gas dry method dust two-fluid spray nozzle operation process
Treat that temperature of the converter gas of dedusting, cooling at devaporizer import is 800 DEG C, dust content is 140g/
Nm3, mass velocity is 3.600kg/m2.s.After converter gas enters devaporizer, what is set in devaporizer is double
Fluid tip carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 2.65m3/ h, water
Pressure is 1.15MPa, and atomizing medium is steam, and pressure is 0.75MPa.Removing dust, the converter gas of cooling are in devaporizer
The temperature in exit is 249 DEG C, and dust content is 67g/Nm3.
Embodiment 3
--- elder brother's steel 120t converter gas dry method dust two-fluid spray nozzle operation process
Treat that temperature of the converter gas of dedusting, cooling at devaporizer import is 827 DEG C, dust content is 142g/
Nm3, mass velocity is 3.900kg/m2.s.After converter gas enters devaporizer, what is set in devaporizer is double
Fluid tip carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 2.85m3/ h, water
Pressure is 1.50MPa, and atomizing medium is steam, and pressure is 1.50MPa.Removing dust, the converter gas of cooling are in devaporizer
The temperature in exit is 239 DEG C, and dust content is 47g/Nm3.
Embodiment 4
--- elder brother's steel 120t converter gas dry method dust two-fluid spray nozzle operation process
Treat that temperature of the converter gas of dedusting, cooling at devaporizer import is 900 DEG C, dust content is 80g/Nm
3, mass velocity is 3.827kg/m2.s.After converter gas enters devaporizer, the double fluid set in devaporizer
Body nozzle carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 3.00m3/ h, hydraulic pressure
Power is 1.20MPa, and atomizing medium is steam, and pressure is 0.85MPa.Removing dust, the converter gas of cooling go out in devaporizer
Temperature at mouthful is 270 DEG C, and dust content is 35g/Nm3.
Embodiment 5
--- elder brother's steel 120t converter gas dry method dust two-fluid spray nozzle operation process
Treat that temperature of the converter gas of dedusting, cooling at devaporizer import is 860 DEG C, dust content is 98g/Nm
3, mass velocity is 3.651kg/m2.s.After converter gas enters devaporizer, the double fluid set in devaporizer
Body nozzle carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 2.90m3/ h, hydraulic pressure
Power is 1.40MPa, and atomizing medium is steam, and pressure is 1.05MPa.Removing dust, the converter gas of cooling go out in devaporizer
Temperature at mouthful is 263 DEG C, and dust content is 41g/Nm3.
Embodiment 6
--- elder brother's steel 120t converter gas dry method dust two-fluid spray nozzle operation process
Treat that temperature of the converter gas of dedusting, cooling at devaporizer import is 780 DEG C, dust content is 150g/
Nm3, mass velocity is 3.720kg/m2.s.After converter gas enters devaporizer, what is set in devaporizer is double
Fluid tip carries out dedusting, cooling to flue gas injection water smoke, and the operational factor used includes：Water-carrying capacity is 2.50m3/ h, water
Pressure is 1.30MPa, and atomizing medium is steam, and pressure is 1.25MPa.Removing dust, the converter gas of cooling are in devaporizer
The temperature in exit is 242 DEG C, and dust content is 75g/Nm3.
Claims (4)
1. a kind of converter gas dry method dust two-fluid spray nozzle operation process, it is characterised in that converter gas enters evaporation and cooled down
After device, the two-fluid spray nozzle set from devaporizer carries out dedusting, cooling, the matter of converter gas to flue gas injection water smoke
Amount flow velocity is 3.600 ~ 3.900kg/m2.s, converter gas temperature is 750 ~ 900 DEG C, dust content at devaporizer import
For 80 ~ 150g/Nm3；The architectural characteristic of devaporizer is tower structure, and nozzle is in the way of the every 36 ° of arrangements one in cross section
Arrangement, the operational factor used includes：Water-carrying capacity is 2.50 ~ 3.00m3/ h, 1.15 ~ 1.20MPa of water pressure, atomizing medium pressure
0.75 ~ 0.85MPa of power；In devaporizer exit converter gas temperature be 239 ~ 270 DEG C, dust content be 35 ~ 75g/
Nm3。
2. operation process according to claim 1, it is characterised in that in described operational factor, water-carrying capacity be 2.65 ~
2.85m3/h。
3. operation process according to claim 2, it is characterised in that in described operational factor, water-carrying capacity is 2.75m3/h。
4. operation process according to claim 1, it is characterised in that the atomizing medium is steam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510748595.3A CN105200183B (en) | 2015-11-07 | 2015-11-07 | A kind of converter gas dry method dust two-fluid spray nozzle operation process |
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| CN201510748595.3A CN105200183B (en) | 2015-11-07 | 2015-11-07 | A kind of converter gas dry method dust two-fluid spray nozzle operation process |
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| CN105200183A CN105200183A (en) | 2015-12-30 |
| CN105200183B true CN105200183B (en) | 2017-10-31 |
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| CN114321960A (en) * | 2021-12-07 | 2022-04-12 | 北京科技大学 | Processing system of waste incineration flue gas |
| CN115305308B (en) * | 2022-06-30 | 2023-11-28 | 湖北邵一环保科技有限公司 | Single medium flue gas cooling dust removal spray gun |
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| CN1276098C (en) * | 2002-09-04 | 2006-09-20 | 上海外高桥喷雾系统有限公司 | Technique for dedusting flue gas of rotating furnace through semi-dry process |
| CN201322313Y (en) * | 2008-11-27 | 2009-10-07 | 南京中船绿洲环保设备工程有限责任公司 | Flue gas chilling device |
| CN103589822B (en) * | 2013-12-02 | 2016-02-10 | 武钢集团昆明钢铁股份有限公司 | A kind of control method of converter dry dedusting outlet temperature for evaporation cooler |
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