CN102489111A - Integral device for comprehensively cleaning flue gas of multi-pollutants - Google Patents

Integral device for comprehensively cleaning flue gas of multi-pollutants Download PDF

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Publication number
CN102489111A
CN102489111A CN2011104085128A CN201110408512A CN102489111A CN 102489111 A CN102489111 A CN 102489111A CN 2011104085128 A CN2011104085128 A CN 2011104085128A CN 201110408512 A CN201110408512 A CN 201110408512A CN 102489111 A CN102489111 A CN 102489111A
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CN
China
Prior art keywords
deduster
flue
flue gas
activated coke
comprehensively
Prior art date
Application number
CN2011104085128A
Other languages
Chinese (zh)
Inventor
唐小健
王强
赵培超
熊志成
杨斌懿
谢兴旺
杜云贵
张金伦
Original Assignee
中电投远达环保工程有限公司
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 中电投远达环保工程有限公司 filed Critical 中电投远达环保工程有限公司
Priority to CN2011104085128A priority Critical patent/CN102489111A/en
Publication of CN102489111A publication Critical patent/CN102489111A/en

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Abstract

The invention discloses an integral device for comprehensively cleaning flue gas of multi-pollutants, which comprises a pre-deduster, an activated coke gas cleaning device, a deduster and a flue, wherein the pre-deduster, the activated coke gas cleaning device and the deduster are sequentially communicated into a whole to be arranged in the flue. According to the invention, the pre-deduster, the activated coke gas cleaning device and the deduster are combined into a whole to be arranged in the flue (a waste heat recovery device is also combined when being arranged), so that structural components of the device are reduced, the cleaning process is shortened, and the system resistance is reduced, so that the whole system occupies a small area, and has small investment and low operation energy consumption; and the original flue gas is cleaned by the device, the comprehensive removal efficiency of dust is larger than or equal to 99.8 percent, the removal rate of Sox is larger than or equal to 95 percent, the removal rate of NOx is larger than or equal to 25 percent, the removal rate of heavy metal mercury is larger than or equal to 80 percent, the waste heat is recycled, and water is not consumed.

Description

The multi-pollutant flue gas purifies integrated apparatus comprehensively

Technical field

The invention belongs to the flue gases purification field, be specifically related to a kind of multi-pollutant flue gas and purify integrated apparatus comprehensively.

Background technology

Existing multi-pollutant smoke eliminator; Generally form by pre-duster, activated coke smoke eliminator and deduster; Wherein the activated coke smoke eliminator is the reactor that activated coke or active carbon are housed, and activated coke or active carbon be adsorbable to remove multiple pollutants such as sulphur in the flue gas, nitre, mercury.The former flue gas that does not purify is removed in the flue gas behind the most dust through pre-duster; Remove multiple pollutant in the flue gas (sulphur, nitre, mercury, moisture content etc.) through the activated coke smoke eliminator; Remove the fine dusts in the flue gas through deduster again, flue gas after being purified is discharged through flue.

The deficiency that existing multi-pollutant smoke eliminator exists is: do not carry out effective energy-saving and consider and the optimization of gas cleaning flow arrangement, pre-duster, activated coke smoke eliminator and deduster split are separately independently arranged, connect through flue between each device; And the flue complex connection; The rapid reducing of flue, elbow, threeway are many, and resistance is big; Therefore whole plant area area is big, and investment and operating cost are high.

Summary of the invention

In view of this, the invention provides a kind of multi-pollutant flue gas and purify integrated apparatus comprehensively, can remove the multiple pollutant in the flue gas simultaneously, and floor space is little, investment and operating cost are low.

Multi-pollutant flue gas of the present invention purifies integrated apparatus comprehensively; Comprise pre-duster, activated coke smoke eliminator, deduster and flue, said pre-duster, activated coke smoke eliminator and deduster be communicated with as a whole successively and entire arrangement in flue.

Further, also comprise waste-heat recovery device, said pre-duster, activated coke smoke eliminator, waste-heat recovery device and deduster be communicated with as a whole successively and entire arrangement in flue;

Further, said deduster is electrostatic precipitator or sack cleaner;

Further, also be provided with ammonia-gas spraying device on the said activated coke smoke eliminator.

Beneficial effect of the present invention is:

1) the present invention with pre-duster, activated coke smoke eliminator and the deduster combination is as a whole and entire arrangement in flue (when waste-heat recovery device is set; Waste-heat recovery device is also combined); Reduced bulking block to greatest extent; Shortened purification process, reduced SR, made that whole plant area area is little, investment is little, operation energy consumption is low;

2) the present invention can remove acidic gas in flue gas (SOx, H simultaneously 2S, NOx etc.), multiple pollutant such as heavy metal Hg, steam and low amounts of dust; The requirement of purifier rear portion equipment and flue antagonism burn into wearing and tearing is reduced greatly; Particularly avoided the most frequently used limestone-gypsum wet desulphurization to be prone to the gypsum rain that produces; Reduced secondary pollution, the security and the stability of device operation are improved greatly;

3) the present invention also is provided with waste-heat recovery device, can flue gas waste heat recovery be utilized to other system of factory.

Description of drawings

In order to make the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is made further detailed description below, wherein:

Fig. 1 is a structural representation of the present invention.

The specific embodiment

Below will carry out detailed description to the preferred embodiments of the present invention with reference to accompanying drawing.

Fig. 1 is a structural representation of the present invention; As shown in the figure; Multi-pollutant flue gas of the present invention purifies integrated apparatus comprehensively; Comprise pre-duster 1, activated coke smoke eliminator 2, waste-heat recovery device 3, deduster 5 and flue 4, said pre-duster 1, activated coke smoke eliminator 2, waste-heat recovery device 3 and deduster 5 is communicated with as a whole successively and entire arrangement in flue 4; Former flue gas G1 gets into from the inlet of flue 4, removes in the flue gas behind the most dust through pre-duster 1, removes multiple pollutant (SOx, H in the flue gas through activated coke smoke eliminator 2 2S, NOx, heavy metal Hg, steam etc.); Drop to flue-gas temperature more than the flue gas acid dew point temperature through waste-heat recovery device 3 again and consider that the uniform temperature surplus (utilizes waste heat recovery to other system of factory; Like heating boiler feedwater, heating cold wind, heat supply etc.); After deduster 5 removes the fine dusts in the flue gas, reach the clean flue gas G2 that satisfies behind the emission request and discharge from the outlet of flue 4.

Former flue gas is through after the purified treatment of the present invention, the comprehensive removal efficiency of dust >=99.8%, SOx removal efficiency >=95%, NOx removal efficiency >=25%, heavy metal Hg removal efficiency >=80%, and waste heat recovery utilizes again, not consume water; And the present invention has reduced bulking block to greatest extent, has shortened purification process, has reduced SR, makes that whole plant area area is little, investment is little, operation energy consumption is low.

In the present embodiment, said deduster 5 is electrostatic precipitator or sack cleaner.

As further improvement of the present invention, also be provided with ammonia-gas spraying device on the said activated coke smoke eliminator 2; In the time of activated coke adsorbing and removing flue gas pollutant, spray into ammonia, can further improve the removal efficiency of NOx, make NOx removal efficiency >=40%; The activated coke of using in the activated coke smoke eliminator 2 also can adopt active carbon.

Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although through invention has been described with reference to the preferred embodiments of the present invention; But those of ordinary skill in the art should be appreciated that and can make various changes to it in form with on the details, and the spirit and scope of the present invention that do not depart from appended claims and limited.

Claims (4)

1. a multi-pollutant flue gas purifies integrated apparatus comprehensively; Comprise pre-duster (1), activated coke smoke eliminator (2), deduster (5) and flue (4), it is characterized in that: said pre-duster (1), activated coke smoke eliminator (2) and deduster (5) be communicated with as a whole successively and entire arrangement in flue (4).
2. multi-pollutant flue gas according to claim 1 purifies integrated apparatus comprehensively; It is characterized in that: also comprise waste-heat recovery device (3), said pre-duster (1), activated coke smoke eliminator (2), waste-heat recovery device (3) and deduster (5) be communicated with as a whole successively and entire arrangement in flue (4).
3. multi-pollutant flue gas according to claim 1 and 2 purifies integrated apparatus comprehensively, it is characterized in that: said deduster (5) is electrostatic precipitator or sack cleaner.
4. multi-pollutant flue gas according to claim 1 and 2 purifies integrated apparatus comprehensively, it is characterized in that: also be provided with ammonia-gas spraying device on the said activated coke smoke eliminator (2).
CN2011104085128A 2011-12-09 2011-12-09 Integral device for comprehensively cleaning flue gas of multi-pollutants CN102489111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104085128A CN102489111A (en) 2011-12-09 2011-12-09 Integral device for comprehensively cleaning flue gas of multi-pollutants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104085128A CN102489111A (en) 2011-12-09 2011-12-09 Integral device for comprehensively cleaning flue gas of multi-pollutants

Publications (1)

Publication Number Publication Date
CN102489111A true CN102489111A (en) 2012-06-13

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Country Status (1)

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CN (1) CN102489111A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200940842Y (en) * 2006-06-23 2007-08-29 杭州新世纪能源环保工程股份有限公司 Flue gas purifier of home refuse incinerator
CN101601963A (en) * 2009-06-02 2009-12-16 张蕊 Flue gas purification system and method thereof
CN101732948A (en) * 2009-12-31 2010-06-16 中电投远达环保工程有限公司 Three-stage integrated treatment system and method for purification and regeneration of activated coke flue gas
WO2010102749A1 (en) * 2009-03-13 2010-09-16 Langner Manfred H Method for purifying an air flow and purification device
CN202315669U (en) * 2011-12-09 2012-07-11 中电投远达环保工程有限公司 Comprehensive purification integration device for multi-pollutant flue gas

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200940842Y (en) * 2006-06-23 2007-08-29 杭州新世纪能源环保工程股份有限公司 Flue gas purifier of home refuse incinerator
WO2010102749A1 (en) * 2009-03-13 2010-09-16 Langner Manfred H Method for purifying an air flow and purification device
CN101601963A (en) * 2009-06-02 2009-12-16 张蕊 Flue gas purification system and method thereof
CN101732948A (en) * 2009-12-31 2010-06-16 中电投远达环保工程有限公司 Three-stage integrated treatment system and method for purification and regeneration of activated coke flue gas
CN202315669U (en) * 2011-12-09 2012-07-11 中电投远达环保工程有限公司 Comprehensive purification integration device for multi-pollutant flue gas

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Application publication date: 20120613

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