CN202219126U - Integrated electric bag composite purification device for removing industrial discharged superfine and micro pollutants - Google Patents

Integrated electric bag composite purification device for removing industrial discharged superfine and micro pollutants Download PDF

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Publication number
CN202219126U
CN202219126U CN2011203271558U CN201120327155U CN202219126U CN 202219126 U CN202219126 U CN 202219126U CN 2011203271558 U CN2011203271558 U CN 2011203271558U CN 201120327155 U CN201120327155 U CN 201120327155U CN 202219126 U CN202219126 U CN 202219126U
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China
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adsorbent
ultra
fine
purification device
bag
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CN2011203271558U
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Chinese (zh)
Inventor
赵江翔
么世杰
刘惠勇
李湘滨
李圣良
项光明
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BEIJING LONGDIAN HONGTAI ENVIRONMENT TECHNOLOGY CO LTD
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BEIJING LONGDIAN HONGTAI ENVIRONMENT TECHNOLOGY CO LTD
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Abstract

The utility model relates to an integrated electric bag composite purification device for removing industrial discharged superfine and micro pollutants. In order to solve the problems of high equipment investment and operating cost, unremarkable removing effect, poor operating stability and the like existing in the existing one-by-one tandem removing method the integrated electric bag composite purification device adopts a structural form that an adsorbent pre-spray device, an electrostatic dust collector, an ultrafine particle aggregation device, an adsorbent injection device and a bag dust collector are sequentially arranged in the airflow direction, and the integrated electric bag composite purification device provide by the utility model is compact in structure, low in operating cost and convenient in operating maintenance, and efficiently remove the superfine and micro pollutants while removing constant dust pollutants.

Description

The integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes
Technical field
The utility model relates to when removing industrial discharge constant dust pollution thing; Integratedly remove ultra-fine and purifier trace contaminant, relate in particular to the electricity bag composite purification device of forming by the preparatory spray equipment of adsorbent, electrostatic precipitator, ultra-fine grain agglomeration device, adsorbent jetting device and bag-type dust collector etc.
Background technology
At present, the society and the public have become the real needs of life to the pursuit of environmental quality, and the world's most countries that comprises China is all constantly revising and improving pollutant emission standard, to realize continuable environmental development target.
Though the industrial pollutants of China remove with control technology and have obtained the wide industrial application, fail to play significant control and removal effect for the ultra-fine and micro-discharging that heavily endangers pollutant.This type of can be carcinogenic, teratogenesis, mutagenic heavy harm pollutant comprise: organic pollutions such as heavy metal 、 bioxin such as the following particle of PM10 (especially PM2.5), mercury.Research and detection show: the ratio that the following particle of PM2.5 accounts for the particle total amount in the coal-fired plant flue gas is above 80%; Be higher than 50% gaseous mercury and particle mercury and be discharged into atmosphere; In a single day organic pollutions such as bioxin form, and the ratio that is captured is lower than 20%.Heavily endanger the international forward position focus that removing of pollutant becomes present technological development and application gradually to ultra-fine and micro-.
In recent years, to the SO that comprises of industrial discharge 2, NOx, dust be at removing of the interior conventional pollutant technical methods that adopt series connection to remove one by one more; Not only increased investment and operating cost, and different remove the compatibility between the mechanism and be suppressed at each other influenced removal effect and operation stability to a great extent.
The utility model adopts mechanism such as particle agglomeration, physics and chemisorbed; When removing industrial discharge constant dust pollution thing, the integrated ultra-fine and trace contaminants such as heavy metal, bioxin such as comprising the following particle of PM10 (especially PM2.5), mercury that remove.
Summary of the invention
The purpose of the utility model provides the integrated purifying device of a kind of trace and ultra-fine pollutant, adopts the electricity bag composite purification device that sets gradually compact combination such as the preparatory spray equipment of adsorbent, electrostatic precipitator, ultra-fine grain agglomeration device, adsorbent jetting device and bag-type dust collector along airflow direction.The utility model is high to the removal efficiency of ultra-fine and trace contaminant, operating cost is low, maintenance and operation maintenance are convenient, is applicable to the pollutant purification of industry such as fire coal, fuel oil and waste incineration.
For achieving the above object, the electrostatic precipitator of the utility model is as pre-dedusting device, and required electric field quantity is 1-2, and each electric field is made up of negative high voltage sparking electrode, gather dust electrode and ash bucket.The electrostatic precipitator working voltage is about 30kV.The industrial discharge flue gas carries out preparatory dedusting through electrostatic precipitator; Most of big dust particle in the flue gas is caught by electrostatic precipitator, and the part bulky grain of electric, the not charged and different carrying capacities of residue bear, ultra-fine and trace contaminant comprise that organic pollutions such as heavy metal 、 bioxin such as the following particle of PM10 (especially PM2.5), mercury enter into the ultra-fine grain agglomeration device.
The ultra-fine grain agglomeration device of the utility model is made up of the positive high voltage sparking electrode, and connects the adsorbent jetting device.Ultra-fine grain agglomeration device working voltage is about 60kV.The particle that the adsorbent that sprays into is the cellular that behind modified active, forms of flyash, specific area is abundant has physics and chemisorbed function simultaneously.By electrostatic precipitator get into bulky grain not charged in the flue gas of ultra-fine grain agglomeration device and ultra-fine grain under the positive high voltage electric field action by lotus positive electricity, with the bear electricity particle agglomeration formation bulky grain in the access to plant.Simultaneously, by the absorbent particles of lotus positive electricity with the collision process of ultra-fine grain in also physics and chemisorption can take place, thereby ultra-fine grain is adsorbed the agent particle capture.In addition, adsorbent also adsorbs and removes heavy metals such as mercury, and the carbon adsorption potential Dui bioxin of adsorbent surface plays the capture effect.Adsorbent and ultra-fine grain form bulky grain and get into follow-up bag-type dust collector with flue gas after reunion and absorption.
During the operation of the adsorbent jetting device of the utility model, different according to ultra-fine and micropollution species and content in the industrial smoke, the straying quatity of adsorbent is at 50-150mg/Nm 3Choose in the scope.
The bag-type dust collector of the utility model is made up of airflow distribution device, bag house, filter bag, air-purifying chamber, blowing device, gas outlet and ash bucket, and connects the preparatory spray equipment of adsorbent.The bulky grain that forms with suction-operated through reuniting, through the filtration of bag house filter bag, is removed to ash bucket by blowing device and to be discharged after airflow distribution device is uniformly distributed with flue gas.Before dust arrester puts into operation and during the overhaul, spray equipment sprayed into adsorbent before electrostatic precipitator in advance, and behind the airflow distribution device airflow uniform distribution, adsorbent evenly covers bag house filter bag surface.The adsorbent that sprays in the adsorbent that sprayed into of spray equipment and the ultra-fine grain agglomeration device in advance is identical.In the bag-type dust collector running; The absorbent particles that gets into flue gas through the ultra-fine grain agglomeration device is behind airflow uniform distribution; Continuation is to reuniting in the flue gas or heavy metal such as the ultra-fine grain of absorption, mercury and bioxin etc. play suction-operated, thereby further removes.The adsorbent that evenly covers filter bag surface finally adsorbs the ultra-fine and trace contaminant in the flue gas and filters, thereby obtains efficient clean-up effect.
When the preparatory spray equipment of the adsorbent of the utility model moves, under enough and stable air quantity condition, be spraying completion standard during bag-type dust collector inlet outlet pressure differential rising 250-300Pa.The spraying back outer absorbent particles bed thickness of filter bag should reach 1.5mm at least.
The particle that the adsorbent of the utility model is the cellular that behind modified active, forms of flyash, specific area is abundant has physics and chemisorbed function simultaneously.Its average grain diameter about 20 μ m, specific area>55m 2/ g.
Compared with prior art, the utlity model has following characteristics:
(1) owing to adopted mechanism such as particle agglomeration, physics and chemisorbed; The industrial smoke that contains ultra-fine and trace contaminant is through the multiple purifying effect; High to ultra-fine removal efficiency with trace contaminant, ultra-fine and quality and the quantity trace contaminant that remove in the clean flue gas of back greatly reduce.Adopt the electricity bag composite purification device of the utility model, exhanst gas outlet dust content≤10mg/m 3(mark attitude), device body resistance≤1200Pa, device efficiency of dust collection>=99.99%, removal efficiency>90% of ultra-fine and trace contaminant.
(2) since the adsorbent that adopts by flyash as carrier, operating cost is low.
(3) the utility model compact conformation has characteristics such as maintenance and operation maintenance convenience simultaneously.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to specify.
Fig. 1 is the main cross-sectional schematic of the utility model patent.
Among the figure: 1. the preparatory spray equipment of adsorbent, 2. electrostatic precipitator, 3. negative high voltage sparking electrode, 4. gather dust electrode, 5. ash bucket, 6. ultra-fine grain agglomeration device, 7. positive high voltage sparking electrode, 8. adsorbent jetting device, 9. bag-type dust collector, 10. airflow distribution device, 11, bag house, 12. filter bags, 13. air-purifying chambers, 14. blowing devices, 15. gas outlets.
The specific embodiment
In Fig. 1, be disposed with the preparatory spray equipment of adsorbent (1), electrostatic precipitator (2), ultra-fine grain agglomeration device (6), adsorbent jetting device (8) and bag-type dust collector (9) along airflow direction.Electrostatic precipitator (2) is made up of negative high voltage sparking electrode (3), the electrode that gathers dust (4) and ash bucket (5) etc.Ultra-fine grain agglomeration device (6) is made up of positive high voltage sparking electrode (7) etc.Bag-type dust collector (9) is made up of airflow distribution device (10), bag house (11), filter bag (12), air-purifying chamber (13), blowing device (14), gas outlet (15) and ash bucket (5) etc.
When the purifier of the utility model is in duty; Contain the industrial smoke that big dust particle, ultra-fine grain and trace contaminant comprise organic pollutions such as heavy metal 、 bioxin such as the following particle of PM10 (especially PM2.5), mercury and carry out preparatory dedusting through electrostatic precipitator (2); Most of big dust particle in the flue gas negative high voltage sparking electrode (3) effect down the bear electricity electrode (4) that gathered dust collect and get into ash bucket (5), remain the part bulky grain of electric, the not charged and different carrying capacities of bear, ultra-fine and trace contaminant enters into ultra-fine grain agglomeration device (6).Not charged part bulky grain, ultra-fine grain and the adsorbent that sprays into by adsorbent jetting device (8) in positive high voltage sparking electrode (7) effect down by lotus positive electricity, adsorbent and ultra-fine grain through reunite and absorption after the formation bulky grain with the follow-up bag-type dust collector (9) of flue gas entering.Before dust arrester puts into operation and during the overhaul, the preparatory spray equipment of adsorbent (1) sprays into adsorbent before at electrostatic precipitator (2), and behind airflow distribution device (10) airflow uniform distribution, adsorbent evenly covers bag house (11) filter bag (12) surface.In the bag-type dust collector running; The absorbent particles that gets into flue gas through ultra-fine grain agglomeration device (6) is behind airflow uniform distribution; Continuation is to reuniting in the flue gas or heavy metal such as the ultra-fine grain of absorption, mercury and bioxin etc. play suction-operated, thereby further removes.The adsorbent that evenly covers filter bag surface finally adsorbs the ultra-fine and trace contaminant in the flue gas and filters, thereby obtains efficient clean-up effect.Under blowing device (14) effect, the dust releasing on filter bag surface gets into ash bucket (5) and discharges, and clean flue gas enters atmosphere through air-purifying chamber (13) and gas outlet (15).

Claims (6)

1. the integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes; Form by the preparatory spray equipment of adsorbent, electrostatic precipitator, ultra-fine grain agglomeration device, adsorbent jetting device and bag-type dust collector etc., it is characterized in that: be disposed with the preparatory spray equipment of adsorbent, electrostatic precipitator, ultra-fine grain agglomeration device, adsorbent jetting device and bag-type dust collector along airflow direction.
2. the integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes according to claim 1, it is characterized in that: the ultra-fine grain agglomeration device is made up of the positive high voltage sparking electrode, and connection adsorbent jetting device.
3. the integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes according to claim 1; It is characterized in that: during the operation of adsorbent jetting device; Different according to ultra-fine and micropollution species and content in the industrial smoke, the straying quatity of adsorbent is at 50-150mg/Nm 3Choose in the scope.
4. the integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes according to claim 1, it is characterized in that: bag-type dust collector connects the preparatory spray equipment of adsorbent.
5. the integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes according to claim 1; It is characterized in that: when the preparatory spray equipment of adsorbent moves; Under enough and stable air quantity condition; Be spraying completion standard during bag-type dust collector inlet outlet pressure differential rising 250-300Pa, the spraying back outer absorbent particles bed thickness of filter bag should reach 1.5mm at least.
6. the integrated ultra-fine electricity bag composite purification device with trace contaminant of industrial discharge that removes according to claim 1; It is characterized in that: the adsorbent that adsorbent jetting device and the preparatory spray equipment of adsorbent are sprayed into is to have the cellular that the flyash of certain phosphorus content forms behind modified active, the particle that specific area is abundant; Have physics and chemisorbed function simultaneously; Its average grain diameter about 20 μ m, specific area>55m 2/ g.
CN2011203271558U 2011-09-02 2011-09-02 Integrated electric bag composite purification device for removing industrial discharged superfine and micro pollutants Expired - Lifetime CN202219126U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102423599A (en) * 2011-09-02 2012-04-25 北京龙电宏泰环保科技有限公司 Electric bag composite purification device for integrated removal of industrially-discharged ultrafine and micro pollutants, and purification method thereof
CN103007670A (en) * 2012-12-27 2013-04-03 厦门龙净环保技术有限公司 Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal
CN103028302A (en) * 2012-12-18 2013-04-10 中冶焦耐工程技术有限公司 Integrated multi-purification device for dust containing sticky material like tar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102423599A (en) * 2011-09-02 2012-04-25 北京龙电宏泰环保科技有限公司 Electric bag composite purification device for integrated removal of industrially-discharged ultrafine and micro pollutants, and purification method thereof
CN103028302A (en) * 2012-12-18 2013-04-10 中冶焦耐工程技术有限公司 Integrated multi-purification device for dust containing sticky material like tar
CN103007670A (en) * 2012-12-27 2013-04-03 厦门龙净环保技术有限公司 Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal

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Granted publication date: 20120516

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