CN106422684A - Device for removing white smoke in flue gas - Google Patents

Device for removing white smoke in flue gas Download PDF

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Publication number
CN106422684A
CN106422684A CN201611064148.7A CN201611064148A CN106422684A CN 106422684 A CN106422684 A CN 106422684A CN 201611064148 A CN201611064148 A CN 201611064148A CN 106422684 A CN106422684 A CN 106422684A
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CN
China
Prior art keywords
flue gas
flue
white
device housing
air
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.)
Pending
Application number
CN201611064148.7A
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Chinese (zh)
Inventor
宋正兴
董延君
陈砚雄
楚清华
于乐意
涂文龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Yijin Environmental Protection Technology Co Ltd
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Jiangsu Yijin Environmental Protection Technology Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Jiangsu Yijin Environmental Protection Technology Co Ltd filed Critical Jiangsu Yijin Environmental Protection Technology Co Ltd
Priority to CN201611064148.7A priority Critical patent/CN106422684A/en
Publication of CN106422684A publication Critical patent/CN106422684A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26Drying gases or vapours
    • B01D53/265Drying gases or vapours by refrigeration (condensation)
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention provides a device for removing white smoke in flue gas. The device comprises a flue gas pipeline, a first dewatering device, a device shell, at least one second dewatering devices, a smoke outlet cap and a water collection and drainage pipe. The first dewatering device is transversely arranged in the flue gas pipeline which is arranged at a flue gas outlet of a desulfurizing tower or a wet electrostatic precipitator, the lower portion of the device shell is communicated with the flue gas pipeline, the second dewatering devices are arranged on the upper portion of the device shell, the smoke outlet cap is arranged above the second dewatering devices, and the water collection and drainage pipe is communicated with the bottom of the device shell. A mixing chamber is formed in the device shell, the side wall of the device shell is provided with a plurality of air guide ports, and cooling fans are arranged at the air guide ports and used for sucking external air into the mixing chamber. The device for removing the white smoke in the flue gas is simple in structure, low in investment and extremely low in production operating cost, and white smoke reduction or removal in flue gas emission can be realized basically.

Description

Flue gas takes off white device
Technical field
The present invention relates to a kind of flue gas takes off white device, what this process unit produced be applied to commercial production arranges containing wet flue gas Subtracting when putting is white or de- white, is particularly suitable for the cigarette that steel mill's sintering, boiler generating, waste incineration etc. adopt wet desulfurizing process Subtracting during gas discharge is white or de- white.
Background technology
In the last few years, the strict demand to energy-saving and emission-reduction and discharge index with country, all trades and professions are all constantly taken and are arranged Apply, research new technique, exploitation new technology, manufacture new equipment, all come into operation in energetically installation.Through effort in a few years, one A little enterprises all can reach discharging standards in the discharge indexs such as dust, SO2, sewage and require, and make environment have very big change.
But it is it follows that long white dragon occurs during some enterprise's fume emissions, and more past northern, colder Region Bai Longyue length.These white cigarette heavy damages urban landscape, impact periphery traffic visibility etc..Through investigation, in national model In enclosing:The every region having containing wet flue gas discharge of the industries such as iron and steel, electric power, chemical industry, particularly steel mill's sintering, boiler generate electricity, rubbish All this phenomenon when the fume emission using wet desulfurizing process such as burning substantially in rubbish, air is caused serious pollution existing Shape.
At present, each relevant enterprise is all energetically trying every possible means it is desirable to solve this problem as early as possible.Solve the normal of this problem Rule method is:
One is that flue gas is cooled to 25 DEG C about from 50 DEG C about, separates out a part of water, reduces humidity of flue gas, can during discharge Reduce white or no white.And cool down and mainly have to flue gas refrigeration and water spray water-cooled two ways.
Two is that from 50 DEG C about, flue gas is heated to more than 80 DEG C, reduces flue gas relative humidity, may be reduced by white during discharge Or it is no white.And heat and mainly have using high temperature heat source heat exchanger heat exchange mode and be directly blended into hybrid mode using high-temp waste gas.
Because the exhaust gas volumn that big commercial production produces is very big, the construction investment that above four kinds of modes have is high, some operation consumptions Energy is big, and the not only investment having is high but also runs power consumption also greatly.After such methods are implemented, the production of enterprise will be greatly increased Operating cost, reduces the performance of enterprises, and enterprise is difficult to bear.
Content of the invention
It is an object of the invention to overcoming the shortcomings of above-mentioned technology, thus providing a kind of flue gas to take off white device, its underpart with After desulfurizing tower(If being provided with wet electric precipitation after desulfurizing tower, after wet electric precipitation)Exhanst gas outlet is connected, containing wet flue gas through this invention Device enters air after processing, and just can reach and subtract white or de- white effect.The sharpest edges of the present invention be apparatus structure simple, Investment is low, production run expense is extremely low, substantially can reach fume emission and subtract white or de- white purpose.
The technical solution adopted in the present invention is such:Flue gas takes off white device, including being arranged at desulfurizing tower or wet electricity removes The flue of cloud of dust gas outlet, the first dehydrator being horizontally set in described flue, bottom and described fume pipe Device case that road is connected, it is arranged at least two-layer second dehydrator of described device housing upper, is arranged at described second The drain pipe that catchments that smoke evacuation cap above dehydrator is connected with the bottom of described device housing, forms in described device housing Mixing chamber, the side wall of described device housing offers some air-vents, is provided with and sucks outside air at described air-vent The indoor cooling fan of described mixing.
Further improved it is:The bottom of described device housing is tapered, and described air-vent is opened in described device housing Inclined-plane on.
Further improved it is:Described air-vent has multiple, and multiple described air-vents are uniformly opened in described device shell On body.
Further improved it is:The bottom of described device housing is plane, and described flue stretches out described device housing Bottom.
Further improved it is:The exhanst gas outlet of described flue be provided with for detect flue gas exhaust gas volumn, flow velocity, The sensor of temperature and pressure, described cooling fan is connected with described controller by controller control, described sensor.
Further improved it is:The side of described smoke evacuation cap is made using stainless (steel) wire.
By adopting preceding solution, the invention has the beneficial effects as follows:Structure is simple, invest low, production run expense Extremely low, substantially can reach fume emission and subtract white or de- white purpose.
Brief description
Fig. 1 is schematic diagram of the present invention.
Wherein:1st, flue;2nd, the first dehydrator;3rd, device case;4th, the second dehydrator;5th, smoke evacuation cap;6th, catchment Drain pipe;7th, cooling fan.
Specific embodiment
To further illustrate the present invention below in conjunction with the drawings and specific embodiments.
As shown in figure 1, the present invention discloses a kind of flue gas takes off white device, including being arranged at desulfurizing tower or wet electric precipitation flue gas goes out Flue 1 at mouthful, the first dehydrator 2 being horizontally set in described flue 1, bottom and described flue 1 phase Connection device case 3, be arranged at described device housing 3 top at least two-layer the second dehydrator 4, be arranged at described second take off The drain pipe 6 that catchments that the smoke evacuation cap 5 of hydrophone 4 top is connected with the bottom of described device housing 3, shape in described device housing 3 Become mixing chamber, the side wall of described device housing 3 offers some air-vents, is provided with described air-vent and outside air is inhaled Enter the indoor cooling fan 7 of described mixing.
Take off white working procedure and relevant technological thought:
(1)Enter the mixing chamber of this device containing wet flue gas from desulfurizing tower or wet electric cleaner top dehydrator direction, contain after entrance The rapid expansion of wet flue gas is so as to flow velocity and pressure drop in the range of the technology of the present invention requirement;
(2)Include wet flue gas in mixing chamber and cold wind enters the outdoor natural wind of fan supply(Hereinafter referred to as cold wind)Mixing.For true Guarantor is sufficiently mixed, and the present invention one is according to amount containing wet flue gas, flow velocity, temperature and pressure before entrance mixing chamber inlet, determines cooling Air quantity, pressure;Two is according to containing wet flue gas and cold blast rate sum, determines mixing chamber horizontal section size and mixing chamber volume;Three It is according to mixing chamber physical dimension, cooling air quantity and pressure, determines into fan number of units, equipment technical parameters, and enter fan peace The two-dimensional space angle of dress.In addition, select not only to meet the requirement of cold wind total amount into fan number of units, it is also contemplated that user location The factors such as domain, season.Be beneficial to during production run meet flue gas take off white on the premise of, close down partial-air admission fan in good time, Reach the purpose of using electricity wisely to greatest extent.
(3)Due to being sufficiently mixed containing wet flue gas and cold wind, the temperature of mixed gas is significantly less than former temperature containing wet flue gas, makes The saturation water capacity relative reduction of mixed gas, will separate out a part of water, water will be taken off when flue gas rises to two-layer dehydrator Remove.The water taken off flows to bottom of device along device case 3, and through catchmenting, drain pipe 6 is discharged.
(4)After dehydration, the sides and top through cap 5 of discharging fume for the flue gas enters air.The side of smoke evacuation cap 5 adopts stainless (steel) wire Material, can be dehydrated when flue gas passes through further.So, the flue gas of discharge not only saturation water capacity relative reduction, and due to this The feature of invention, outside flue gas, row's kinetic energy is little, and flue gas flow rate is very slow, so that flue gas narrow regions inside and outside exhaust cap is fully incorporated greatly Gas, reaches and subtracts white and de- white purpose.
It is preferred embodiment that the bottom of described device housing 3 is tapered in the present embodiment, described air-vent is opened in On the inclined-plane of described device housing 3.
It is preferred embodiment that described air-vent has multiple, and multiple described air-vents uniformly open up in the present embodiment On described device housing 3.
It is preferred embodiment that the bottom of described device housing 3 is plane, and described flue 1 is stretched in the present embodiment Go out the bottom of described device housing 3.
It is preferred embodiment that the exhanst gas outlet of described flue 1 is provided with for detecting flue gas in the present embodiment Exhaust gas volumn, flow velocity, the sensor of temperature and pressure, described cooling fan 7 by controller control, described sensor and described control Device is connected.
It is preferred embodiment that the side of described smoke evacuation cap 5 is made using stainless (steel) wire in the present embodiment.
Before desulfurizing tower or wet electricity put into production, fan will be entered and all start, when 50 DEG C contain the wet flue gas entrance present invention After device, this device will enter normal work program, when containing wet flue gas through this device process after, gaseous mixture temperature reduction 10 DEG C about, flue gas moisture content will drop to 60g/Nm from 110g/Nm, but due to after mixing volume of gas increase, make flue gas Relative humidity reduces further, then enters air with extremely low speed by cap 5 of discharging fume, and makes flue gas narrow and small area inside and outside exhaust cap Domain fully incorporates air, reaches and subtracts white and de- white purpose.In order to reduce production run cost to greatest extent, operator can Closed down into fan number of units according to local climate situation and smoke evacuation state in good time.When part is closed down into fan, to enter by some Fan arrangement sequence number interval is shut down, to guarantee to enter the uniformity of device cold wind.
Ultimate principle and principal character and its advantage of the present invention have been shown and described above, the technical staff of the industry should This understanding, the present invention is not restricted to the described embodiments, and the simply explanation present invention's described in above-described embodiment and explanation is former Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements Both fall within scope of the claimed invention, claimed scope is by appending claims and its equivalent circle. Fixed.

Claims (6)

1. flue gas take off white device it is characterised in that:Including be arranged at desulfurizing tower or wet electric precipitation smoke outlet flue, Device case that the first dehydrator of being horizontally set in described flue, bottom are connected with described flue, setting In described device housing upper at least two-layer second dehydrator, be arranged at smoke evacuation cap and institute above described second dehydrator State the drain pipe that catchments that the bottom of device case is connected, in described device housing, form mixing chamber, the side of described device housing Some air-vents are offered on wall, is provided with described air-vent and outside air is sucked the indoor cooling fan of described mixing.
2. flue gas according to claim 1 take off white device it is characterised in that:The bottom of described device housing is tapered, institute State air-vent to be opened on the inclined-plane of described device housing.
3. flue gas according to claim 2 take off white device it is characterised in that:Described air-vent have multiple, multiple described Air-vent is uniformly opened on described device housing.
4. flue gas according to claim 1 take off white device it is characterised in that:The bottom of described device housing is plane, institute State the bottom that flue stretches out described device housing.
5. flue gas according to claim 1 take off white device it is characterised in that:The exhanst gas outlet of described flue is provided with For detecting the sensor of the exhaust gas volumn of flue gas, flow velocity, temperature and pressure, described cooling fan is by controller control, described sensing Device is connected with described controller.
6. flue gas according to claim 1 take off white device it is characterised in that:The side of described smoke evacuation cap adopts stainless (steel) wire Make.
CN201611064148.7A 2016-11-28 2016-11-28 Device for removing white smoke in flue gas Pending CN106422684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611064148.7A CN106422684A (en) 2016-11-28 2016-11-28 Device for removing white smoke in flue gas

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Application Number Priority Date Filing Date Title
CN201611064148.7A CN106422684A (en) 2016-11-28 2016-11-28 Device for removing white smoke in flue gas

Publications (1)

Publication Number Publication Date
CN106422684A true CN106422684A (en) 2017-02-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107376578A (en) * 2017-06-29 2017-11-24 北京建筑大学 The demister and method of a kind of flue tail gas
CN108261842A (en) * 2018-01-10 2018-07-10 山东国舜建设集团有限公司 A kind of cooling condensation and dewatering integrated elimination " white cigarette " method
CN109331600A (en) * 2018-11-12 2019-02-15 昊姆(上海)节能科技有限公司 Blast furnace slag flushing flue gas disappears white integrated apparatus
CN109442459A (en) * 2018-11-16 2019-03-08 天津大学 A kind of gas fired-boiler flue gas takes off white system
CN110772938A (en) * 2019-11-01 2020-02-11 中冶东方工程技术有限公司 Intensive smoke plume treatment and purification system and method
CN112827329A (en) * 2021-02-07 2021-05-25 丁克敬 White smoke treatment device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2648306Y (en) * 2003-06-16 2004-10-13 方伟石 High efficient fume purifier
CN101279182A (en) * 2008-05-26 2008-10-08 佛山市合璟节能环保科技有限公司 Method and device for eliminating white smoke in industry flue gas
KR20100133620A (en) * 2009-06-12 2010-12-22 정재억 Dust removing and cooling apparatus
CN202224053U (en) * 2011-09-30 2012-05-23 北京安普能环保工程技术有限公司 Cascade flow gas liquid separation device for eliminating desulfurized white smoke
CN202778256U (en) * 2012-08-10 2013-03-13 北京中科创新园环境技术有限公司 Desulfurizing tower of dewatering and demisting straight moisture-removing chimney arranged at device
CN103920376A (en) * 2014-04-30 2014-07-16 四川省达州钢铁集团有限责任公司 Low-energy-consumption hybrid white smoke elimination device
CN206334513U (en) * 2016-11-28 2017-07-18 江苏亿金环保科技有限公司 Flue gas takes off white device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2648306Y (en) * 2003-06-16 2004-10-13 方伟石 High efficient fume purifier
CN101279182A (en) * 2008-05-26 2008-10-08 佛山市合璟节能环保科技有限公司 Method and device for eliminating white smoke in industry flue gas
KR20100133620A (en) * 2009-06-12 2010-12-22 정재억 Dust removing and cooling apparatus
CN202224053U (en) * 2011-09-30 2012-05-23 北京安普能环保工程技术有限公司 Cascade flow gas liquid separation device for eliminating desulfurized white smoke
CN202778256U (en) * 2012-08-10 2013-03-13 北京中科创新园环境技术有限公司 Desulfurizing tower of dewatering and demisting straight moisture-removing chimney arranged at device
CN103920376A (en) * 2014-04-30 2014-07-16 四川省达州钢铁集团有限责任公司 Low-energy-consumption hybrid white smoke elimination device
CN206334513U (en) * 2016-11-28 2017-07-18 江苏亿金环保科技有限公司 Flue gas takes off white device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107376578A (en) * 2017-06-29 2017-11-24 北京建筑大学 The demister and method of a kind of flue tail gas
CN108261842A (en) * 2018-01-10 2018-07-10 山东国舜建设集团有限公司 A kind of cooling condensation and dewatering integrated elimination " white cigarette " method
CN109331600A (en) * 2018-11-12 2019-02-15 昊姆(上海)节能科技有限公司 Blast furnace slag flushing flue gas disappears white integrated apparatus
CN109331600B (en) * 2018-11-12 2023-06-02 昊姆(上海)节能科技有限公司 Blast furnace slag flushing smoke white eliminating integrated device
CN109442459A (en) * 2018-11-16 2019-03-08 天津大学 A kind of gas fired-boiler flue gas takes off white system
CN110772938A (en) * 2019-11-01 2020-02-11 中冶东方工程技术有限公司 Intensive smoke plume treatment and purification system and method
CN112827329A (en) * 2021-02-07 2021-05-25 丁克敬 White smoke treatment device

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Application publication date: 20170222

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