CN107119164A - Hot-blast stove fume waste heat dries the process system of blast furnace gas - Google Patents
Hot-blast stove fume waste heat dries the process system of blast furnace gas Download PDFInfo
- Publication number
- CN107119164A CN107119164A CN201710284985.9A CN201710284985A CN107119164A CN 107119164 A CN107119164 A CN 107119164A CN 201710284985 A CN201710284985 A CN 201710284985A CN 107119164 A CN107119164 A CN 107119164A
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- Prior art keywords
- drier
- hot
- furnace gas
- blast furnace
- regenerator
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention relates to the process system that a kind of hot-blast stove fume waste heat dries blast furnace gas, including drier, regenerator, two groups of conveying lifting devices and drier, drier bottom is provided with drier discharge gate, bottom is provided with blast furnace gas import, middle part is provided with dry channel, top is exported provided with drier charging aperture and blast furnace gas, regenerator bottoms are provided with drier discharge gate, bottom is provided with hot-blast stove fume import, middle part is provided with desiccant regeneration passage, top is exported provided with drier charging aperture and hot-blast stove fume, blast furnace gas outlet is connected to hot-blast stove, hot-blast stove is connected to hot-blast stove fume import by preheater, the drier discharge gate of drier is connected to the drier charging aperture of regenerator by one group of conveying lifting device, the drier discharge gate of regenerator is connected by another group of conveying lifting device.The present invention utilizes hot-blast stove fume waste heat contact drying blast furnace gas, will not produce pollution to blast furnace gas, save the energy, improved the calorific value of blast furnace gas.
Description
Technical field
The present invention relates to hot-blast stove fume waste heat recovery field, and in particular to a kind of hot-blast stove fume waste heat dries blast furnace coal
The process system of gas.
Background technology
Hot-blast stove produces high temperature air by BF gas heating of burning and high temperature air is blasted into blast furnace to improve height
Flue gas is generally passed through preheating by the flue-gas temperature after stove rate of driving, blast furnace gas combustion from hot-blast stove discharge at 280-350 DEG C
Preheated air or the double preheatings of air gas in device, the flue-gas temperature of discharge preheater are down to 150 DEG C or so, are generally no longer subject to
Using and directly discharge.
Because blast furnace gas principal combustible components are CO, and the typically saturated state of blast furnace gas, therefore blast furnace gas
In contain more steam, this not only lowers the calorific value of blast furnace gas, also increase the consumption of blast furnace gas.
The content of the invention
It is an object of the invention to provide the process system that a kind of hot-blast stove fume waste heat dries blast furnace gas, the system is utilized
Hot-blast stove fume waste heat contact drying blast furnace gas, will not produce pollution to blast furnace gas, save the energy, improved blast furnace coal
The calorific value of gas.
The technical solution adopted in the present invention is：
A kind of hot-blast stove fume waste heat dries the process system of blast furnace gas, including drier, regenerator, two groups of conveyings are carried
Device and drier are risen, drier bottom is logical provided with drying provided with blast furnace gas import, middle part provided with drier discharge gate, bottom
Road, top are exported provided with drier charging aperture and blast furnace gas, and regenerator bottoms are provided with hot blast provided with drier discharge gate, bottom
Kiln gas import, middle part are exported provided with desiccant regeneration passage, top provided with drier charging aperture and hot-blast stove fume, drier
Blast furnace gas exports the import for being connected to hot-blast stove, and the exhaust opening of hot-blast stove is connected to regenerator hot-blast stove fume by preheater
Import, the drier discharge gate of drier is connected to the drier charging aperture of regenerator by one group of conveying lifting device, regeneration
The drier discharge gate of device is connected to the drier charging aperture of drier by another group of conveying lifting device, and drier passes through two
Group conveying lifting device is conveyed in drier and regenerator interior circulation.
Further, drier is 13X type molecular sieves.
Further, dry channel and recovery passage are by tilting the zigzag passage that dividing plate staggeredly is formed.
Further, on the drier discharge gate and drier charging aperture of drier and regenerator drier discharge gate
Double-layer flap valve is equipped with drier charging aperture.
Further, two groups of conveying lifting devices include conveying worm and chapelet, in one group of conveying hoisting
In device, conveying worm input is connected to the drier discharge gate of drier, output end positioned at chapelet input
Top, chapelet output end is connected to the drier charging aperture of regenerator, in another group of conveying lifting device, spiral transferring
The machine input of sending is connected to the drier discharge gate of regenerator, output end above chapelet input, chain bucket lifting
Machine output end is connected to the drier charging aperture of drier.
Further, in one group of conveying lifting device, the drier charging aperture of chapelet output end and regenerator
Between be provided with surge tank, in another group of conveying lifting device, the drier charging aperture of chapelet output end and drier
Between be provided with surge tank.
The beneficial effects of the invention are as follows：
1. during work, the blast furnace gas after purification is passed through the import of drier blast furnace gas and to the drier of drier
Charging aperture delivers drier, and the blast furnace gas risen in dry channel fully contacts to be adsorbed away with the drier fallen
Steam, blast furnace gas accesses hot-blast stove after drying from blast furnace gas outlet discharge, and the hot-blast stove fume discharged after preheater is led to
Enter hot-blast stove fume import and the drier that will be discharged by one group of conveying lifting device from the drier discharge gate of drier
The drier charging aperture of regenerator is delivered, the drier fallen in recovery passage is fully contacted with the hot-blast stove fume risen
Regeneration is dried so as to be heated, the drier that will be discharged by another group of conveying lifting device from the drier discharge gate of regenerator
The drier charging aperture for delivering drier is recycled.Not only can not if hot-blast stove fume waste heat convection drying blast furnace gas
Steam is removed from blast furnace gas can also pollute blast furnace gas, and the system utilizes hot-blast stove fume waste heat contact drying blast furnace
Coal gas, will not to blast furnace gas produce pollution, saved the energy, improved the calorific value of blast furnace gas.
2. 13X types molecular sieve can be used for water and carbon dioxide eutectoid content, water and hydrogen sulfide gas eutectoid content, it is adaptable to high
The absorption of steam in producer gas.
3. dry channel extends the time of contact of drier and blast furnace gas using zigzag passage, recovery passage is used
Zigzag passage extends the time of contact of drier and hot-blast stove fume, reduces the height of drier and regenerator.
4. double-layer flap valve can avoid the leakage of gas in drier and regenerator.
5. conveying worm is used for horizontal conveying, chapelet is used for vertical lifting, and two are combined, and are suitable for
The transport and lifting of the long range of granular drier.
6. it is not uniform conveying that chapelet, which is intermittent delivery, in order to ensure the uniform dispensing of drier so as to protect
The action effect of drier and gas is demonstrate,proved, the present apparatus sets up surge tank, and the drier of intermittent delivery enters equal after surge tank
Even discharge.
Brief description of the drawings
Fig. 1 is the connection diagram of drier, regenerator and two groups of conveying lifting devices in the embodiment of the present invention.
Fig. 2 is the connection diagram of drier in the embodiment of the present invention, regenerator, hot-blast stove and preheater.
In figure：1- driers；2- dividing plates；3- surge tanks；4- double-layer flap valves；5- conveying worms；6- chapelets；
7- blast furnace gas imports；8- blast furnace gases are exported；9- hot-blast stove fume imports；10- hot-blast stove fumes are exported；11- regenerators；
12- hot-blast stoves；13- preheaters.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, a kind of process system of hot-blast stove fume waste heat drying blast furnace gas, including drier 1,
Regenerator 11, two groups of conveying lifting devices and drier, the bottom of drier 1 are provided with blast furnace coal provided with drier discharge gate, bottom
Gas import 7, middle part are provided with dry channel, top provided with drier charging aperture and blast furnace gas outlet 8, and the bottom of regenerator 11 is provided with
Drier discharge gate, bottom provided with hot-blast stove fume import 9, middle part provided with recovery passage, top provided with drier charging aperture and
Hot-blast stove fume outlet 10, blast furnace gas outlet 8 is connected to the import of hot-blast stove 12, and the exhaust opening of hot-blast stove 12 passes through preheater
13 are connected to hot-blast stove fume import 9, and the drier discharge gate of drier 1 is connected to regenerator by one group of conveying lifting device
11 drier charging aperture, the drier discharge gate of regenerator 11 is connected to drier 1 by another group of conveying lifting device
Drier charging aperture, drier is conveyed by two groups of conveying lifting devices in drier 1 and the interior circulation of regenerator 11.
During work, the blast furnace gas after purification is passed through blast furnace gas import 7 and to the drier charging aperture of drier 1
Drier is delivered, the blast furnace gas risen in dry channel fully contacts to be adsorbed away steam with the drier fallen,
Blast furnace gas accesses hot-blast stove 12 after drying from the discharge of blast furnace gas outlet 8, and the hot-blast stove fume discharged after preheater 13 is led to
Enter hot-blast stove fume import 9 and the drying that will be discharged by one group of conveying lifting device from the drier discharge gate of drier 1
The drier charging aperture to regenerator 11 is delivered in agent, and the drier fallen in recovery passage and the hot-blast stove fume risen are abundant
Contact dries regeneration so as to be heated, and will be discharged by another group of conveying lifting device from the drier discharge gate of regenerator 11
The drier charging aperture that drier is delivered to drier 1 is recycled.Due to hot-blast stove fume waste heat convection drying blast furnace gas
If steam can not only be removed from blast furnace gas and can also pollute blast furnace gas, therefore the system is using more than hot-blast stove fume
Hot contact drying blast furnace gas, the calorific value that pollution will not be produced to blast furnace gas, the energy has been saved, improve blast furnace gas.
In the present embodiment, drier is 13X type molecular sieves.13X types molecular sieve can be used for water and carbon dioxide eutectoid content,
Water and hydrogen sulfide gas eutectoid content, it is adaptable to the absorption of the steam in blast furnace gas.
As shown in figure 1, in the present embodiment, dry channel and recovery passage are what is formed by tilting dividing plate 2 staggeredly
Zigzag passage.Dry channel extends the time of contact of drier and blast furnace gas using zigzag passage, and recovery passage is adopted
The time of contact of drier and hot-blast stove fume is extended with zigzag passage, the height of drier 1 and regenerator 11 is reduced.
As shown in figure 1, in the present embodiment, on the drier discharge gate and drier charging aperture of drier 1 and regenerate
Double-layer flap valve 4 is equipped with the drier discharge gate and drier charging aperture of device 11.Double-layer flap valve 4 can avoid drier
1 and regenerator 11 in gas leakage.
As shown in figure 1, in the present embodiment, two groups of conveying lifting devices include conveying worm 5 and chapelet
6, in one group of conveying lifting device, the input of conveying worm 6 is connected to the drier discharge gate of drier 1, output end position
Above the input of chapelet 6, the output end of chapelet 6 is connected to the drier charging aperture of regenerator 11, another
In group conveying lifting device, the input of conveying worm 5 is connected to the drier discharge gate of regenerator 11, output end positioned at chain bucket
Above the input of elevator 6, the output end of chapelet 6 is connected to the drier charging aperture of drier 1.Conveying worm 5 is used
In horizontal conveying, chapelet 6 is used for vertical lifting, and two are combined, be suitable for the length of granular drier away from
From transport and lifting.
As shown in figure 1, in the present embodiment, in one group of conveying lifting device, the output end of chapelet 6 and regenerator
Surge tank 3 is provided between 11 drier charging aperture, in another group of conveying lifting device, the output end of chapelet 6 is with doing
Surge tank 3 is provided between the drier charging aperture of dry device 1.Chapelet 6 is that intermittent delivery is not uniform conveying, in order to
Ensure the uniform dispensing of drier so as to ensure the action effect of drier and gas, the present apparatus sets up surge tank 3, and batch (-type) is defeated
The drier sent is uniformly discharged after entering surge tank 3.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (6)
1. a kind of hot-blast stove fume waste heat dries the process system of blast furnace gas, it is characterised in that：Including drier, regenerator,
Two groups of conveying lifting devices and drier, drier bottom are provided with blast furnace gas import, middle part provided with drier discharge gate, bottom
Exported provided with dry channel, top provided with drier charging aperture and blast furnace gas, regenerator bottoms provided with drier discharge gate, under
Portion is provided with drier charging aperture and hot-blast stove fume provided with hot-blast stove fume import, middle part provided with desiccant regeneration passage, top
Outlet, drier blast furnace gas exports the import for being connected to hot-blast stove, and the exhaust opening of hot-blast stove is connected to regeneration by preheater
Device hot-blast stove fume import, the drier discharge gate of drier is connected to the drier of regenerator by one group of conveying lifting device
Charging aperture, the drier discharge gate of regenerator is connected to the drier charging aperture of drier by another group of conveying lifting device,
Drier is conveyed by two groups of conveying lifting devices in drier and regenerator interior circulation.
2. hot-blast stove fume waste heat as claimed in claim 1 dries the process system of blast furnace gas, it is characterised in that：Drier
For 13X type molecular sieves.
3. hot-blast stove fume waste heat as claimed in claim 1 dries the process system of blast furnace gas, it is characterised in that：Dry logical
Road and recovery passage are by tilting the zigzag passage that dividing plate staggeredly is formed.
4. hot-blast stove fume waste heat as claimed in claim 1 dries the process system of blast furnace gas, it is characterised in that：Drier
Drier discharge gate and drier charging aperture on and the drier discharge gate and drier charging aperture of regenerator on be equipped with
Double-layer flap valve.
5. the hot-blast stove fume waste heat as described in Claims 1-4 is any dries the process system of blast furnace gas, its feature exists
In：Two groups of conveying lifting devices include conveying worm and chapelet, in one group of conveying lifting device, helical feed
Machine input is connected to the drier discharge gate of drier, output end above chapelet input, chapelet
Output end is connected to the drier charging aperture of regenerator, in another group of conveying lifting device, the connection of conveying worm input
Drier discharge gate, output end to regenerator are located above chapelet input, and chapelet output end is connected to
The drier charging aperture of drier.
6. hot-blast stove fume waste heat as claimed in claim 5 dries the process system of blast furnace gas, it is characterised in that：At one group
In conveying lifting device, surge tank is provided between the drier charging aperture of chapelet output end and regenerator, at another group
In conveying lifting device, surge tank is provided between the drier charging aperture of chapelet output end and drier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284985.9A CN107119164B (en) | 2017-04-26 | 2017-04-26 | The system of the dry blast furnace gas of hot-blast stove fume waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284985.9A CN107119164B (en) | 2017-04-26 | 2017-04-26 | The system of the dry blast furnace gas of hot-blast stove fume waste heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107119164A true CN107119164A (en) | 2017-09-01 |
| CN107119164B CN107119164B (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710284985.9A Active CN107119164B (en) | 2017-04-26 | 2017-04-26 | The system of the dry blast furnace gas of hot-blast stove fume waste heat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289454A (en) * | 2018-11-30 | 2019-02-01 | 浙江高成绿能科技有限公司 | A kind of recyclable drying device for gas dry |
| CN110791328A (en) * | 2019-11-28 | 2020-02-14 | 中冶南方都市环保工程技术股份有限公司 | Blast furnace gas dry desulphurization system and method |
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| CN1736552A (en) * | 2004-08-16 | 2006-02-22 | 山东省冶金设计院 | Dehumidifying method of dusty gas and use thereof |
| CN201560207U (en) * | 2010-03-03 | 2010-08-25 | 无锡金龙石化冶金设备制造有限公司 | Blast furnace blast-dehumidification device utilizing waste heat of flue gas from hot blast furnace |
| CN203010649U (en) * | 2012-12-18 | 2013-06-19 | 北京志能祥赢节能环保科技有限公司 | Whirlwind gas dehumidifying and heating device of flame furnace |
| CN103361458A (en) * | 2013-08-06 | 2013-10-23 | 张家港山河水节能环保科技有限公司 | A humidity adjusting device for a blast furnace blast system |
| CN106403561A (en) * | 2016-11-11 | 2017-02-15 | 西安航天华威化工生物工程有限公司 | Semi-coke dewatering device and technology |
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2017
- 2017-04-26 CN CN201710284985.9A patent/CN107119164B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736552A (en) * | 2004-08-16 | 2006-02-22 | 山东省冶金设计院 | Dehumidifying method of dusty gas and use thereof |
| CN201560207U (en) * | 2010-03-03 | 2010-08-25 | 无锡金龙石化冶金设备制造有限公司 | Blast furnace blast-dehumidification device utilizing waste heat of flue gas from hot blast furnace |
| CN203010649U (en) * | 2012-12-18 | 2013-06-19 | 北京志能祥赢节能环保科技有限公司 | Whirlwind gas dehumidifying and heating device of flame furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109289454A (en) * | 2018-11-30 | 2019-02-01 | 浙江高成绿能科技有限公司 | A kind of recyclable drying device for gas dry |
| CN109289454B (en) * | 2018-11-30 | 2023-11-28 | 浙江高成绿能科技有限公司 | Circulated drying device for gas drying |
| CN110791328A (en) * | 2019-11-28 | 2020-02-14 | 中冶南方都市环保工程技术股份有限公司 | Blast furnace gas dry desulphurization system and method |
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| Publication number | Publication date |
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| CN107119164B (en) | 2019-03-29 |
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