CN1229004A - Water-vapour spray dust removing using high-temp. smoke self-induced-air - Google Patents
Water-vapour spray dust removing using high-temp. smoke self-induced-air Download PDFInfo
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- CN1229004A CN1229004A CN98100905A CN98100905A CN1229004A CN 1229004 A CN1229004 A CN 1229004A CN 98100905 A CN98100905 A CN 98100905A CN 98100905 A CN98100905 A CN 98100905A CN 1229004 A CN1229004 A CN 1229004A
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- water
- flue gas
- vapour spray
- dust
- temp
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A method for dusting high-temp flue gas by spraying water vapour and chimney effect features use of the afterheat in high-temp flue gas to generate water vapour and use of spraying water vapour to suck flue gas into duster where it is cooled, dewatered and dusted. It is unnecessary to use draught fan. Its advantages are high dusting efficiency and recovering thermal energy from flue gas.
Description
The present invention relates to a kind of steam that utilizes, particularly utilize method and the device of the steam of fume afterheat generation high temperature fume dust removal.
The normal ash-laden gas that produces a large amount of high temperature, high concentration of industry such as building materials, smelting, dust collecting process in the past is dedusting again after the cooling earlier, and then with electric cleaner or sack cleaner final dusting, this method investment is big, operation, maintenance complexity, power consumption is also big, and medium-sized and small enterprises Chang Wufa bears its expense.
For addressing the above problem, wet dust removal is used again gradually in recent years.Chinese patent application book 94238057.6 has proposed a kind of cement in vertical kiln wet scrubber, and it adopts the principle of water jet injection, need not to use blower fan, directly flue gas is introduced wet scrubber, and investment is saved greatly.But a large amount of heat energy of high-temperature flue gas are failed effective recycling, and water jet produce to take out gravitation very little, be difficult to overcome the resistance of dedusting, fume-dehydrating, make the flue gas circulation not smooth, and general wet dust removal is relatively poor at the grit dust removing effects below 1 micron to particle diameter.
The objective of the invention is to provide a kind of dust collection method and device of high-temperature flue gas, dust pelletizing system self has stronger air inducing ability, can overcome self resistance, and to dustshot efficiency of dust collection height, also recyclable a large amount of heat energy.
The object of the present invention is achieved like this: at first high-temperature flue gas is produced steam by waste heat boiler, enter deduster with the flue gas of water-vapour spray suction after residual heat boiler for exchanging heat, flue gas mixes the formation turbulent flow in when suction with steam, in playpipe, fully mix with steam, the soot dust granule cohesion increases, then with gaseous mixture condensation, realization purification flue gas separates with dust mud.
Realize that main device of the present invention is the water-vapour spray dust removing device, it is made up of venturi-type water-vapour spray aspirator and flue gas steam gaseous mixture condensation dewater unit.
The present invention has recycled the waste heat of high-temperature flue gas, and the water-vapour spray suction is combined with the water vapor condensation dedusting, has promptly saved the energy, has reduced equipment investment again.The draft of water-vapour spray air inducing is much larger than the draft of water jet, and the resistance that has overcome deduster itself has avoided the flue gas air draft not smooth, and water vapor condensation increases the dustshot cohesion, has improved efficiency of dust collection greatly.
The present invention can implement by following proposal.
Fig. 1 is the flow chart of embodiment.
High-temperature flue gas is introduced into waste heat boiler (1) and carries out heat exchange; the bulky grain dust falls into the boiler bottom ash bucket and regularly discharges; the steam that waste heat boiler produces enters drum (2); introduce the steam shower nozzle of venturi playpipe (3) then by steamdrum (2); in venturi nozzle; steam is ejection at a high speed above the Venturi tube trunnion; make Venturi tube (3) top produce vacuum; take out and draw flue gas and enter (3); the trunnion place is mixed strongly with steam in Venturi tube (3); the flue gas gaseous mixture slow down to recover pressure in Venturi tube (3) Lower Half, then with condensing unit (4) in the cooling water condensation by contact, dirt mud falls into (4) bottom bucket and regularly discharges.Flue gas after the dedusting removes the moisture content that carries after chimney (6) is discharged through screen (5).
The present invention has energy-saving and cost-reducing and protection environment double benefit, has solved the difficult problem that high temperature fume dust removal investment for a long time is big, operation is difficult, energy consumption is high, and there is bigger promotional value in enterprises such as metallurgy, building materials, chemical industry.
Claims (3)
1, high-temperature flue gas self-induced-air water-vapour spray dust removing method and device comprise that waste heat boiler reclaims flue gas heat, water-vapour spray dust removing two large divisions.It is characterized in that flue gas aspirates into dust pelletizing system by water-vapour spray, the water-vapour spray aspirator is the part of deduster, and flue gas is realized high-effective dust-removing by water vapor condensation.
2, device according to claim 1 is characterized in that the water-vapour spray aspirator is a venturi-type water-vapour spray aspirator (3).
3, device according to claim 1 is characterized in that the water vapor condensation dust arrester is made up of water-vapour spray aspirator (3) and steam flue gas gaseous mixture condensation dewater unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100905A CN1229004A (en) | 1998-03-13 | 1998-03-13 | Water-vapour spray dust removing using high-temp. smoke self-induced-air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98100905A CN1229004A (en) | 1998-03-13 | 1998-03-13 | Water-vapour spray dust removing using high-temp. smoke self-induced-air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1229004A true CN1229004A (en) | 1999-09-22 |
Family
ID=5216330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100905A Pending CN1229004A (en) | 1998-03-13 | 1998-03-13 | Water-vapour spray dust removing using high-temp. smoke self-induced-air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1229004A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944024A (en) * | 2012-11-09 | 2013-02-27 | 中国神华能源股份有限公司 | Lignite thermal power generation system |
| CN104776436A (en) * | 2015-04-24 | 2015-07-15 | 李胜然 | Refuse incineration device |
| CN105311894A (en) * | 2015-11-20 | 2016-02-10 | 张家港市益成机械有限公司 | Industrial dust collector |
| CN106766964A (en) * | 2017-01-18 | 2017-05-31 | 绵阳易简环保科技有限公司 | Energy-saving metal electric melting furnace cleaner |
| CN110701919A (en) * | 2019-09-29 | 2020-01-17 | 佛山科学技术学院 | Longjiao tail gas processing apparatus |
| CN113082949A (en) * | 2021-05-14 | 2021-07-09 | 云南绿宝香精香料股份有限公司 | Deodorization system is retrieved in eucalyptus oil valeraldehyde separation |
| CN113198278A (en) * | 2021-04-21 | 2021-08-03 | 江苏科技大学 | Steam dust removal system and working method thereof |
-
1998
- 1998-03-13 CN CN98100905A patent/CN1229004A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944024A (en) * | 2012-11-09 | 2013-02-27 | 中国神华能源股份有限公司 | Lignite thermal power generation system |
| CN104776436A (en) * | 2015-04-24 | 2015-07-15 | 李胜然 | Refuse incineration device |
| CN104776436B (en) * | 2015-04-24 | 2017-01-18 | 李胜然 | Refuse incineration device |
| CN105311894A (en) * | 2015-11-20 | 2016-02-10 | 张家港市益成机械有限公司 | Industrial dust collector |
| CN106766964A (en) * | 2017-01-18 | 2017-05-31 | 绵阳易简环保科技有限公司 | Energy-saving metal electric melting furnace cleaner |
| CN110701919A (en) * | 2019-09-29 | 2020-01-17 | 佛山科学技术学院 | Longjiao tail gas processing apparatus |
| CN113198278A (en) * | 2021-04-21 | 2021-08-03 | 江苏科技大学 | Steam dust removal system and working method thereof |
| CN113082949A (en) * | 2021-05-14 | 2021-07-09 | 云南绿宝香精香料股份有限公司 | Deodorization system is retrieved in eucalyptus oil valeraldehyde separation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |