CN103480263A - Pre-charge spraying desulfurization and dust removal device - Google Patents
Pre-charge spraying desulfurization and dust removal device Download PDFInfo
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- CN103480263A CN103480263A CN201310488599.3A CN201310488599A CN103480263A CN 103480263 A CN103480263 A CN 103480263A CN 201310488599 A CN201310488599 A CN 201310488599A CN 103480263 A CN103480263 A CN 103480263A
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Abstract
The invention discloses a pre-charge spraying desulfurization and dust removal device which is applied to the technical field of coal-fired flue gas desulfurization and dust removal. The pre-charge spraying desulfurization and dust removal device comprises a tower body, wherein the bottom of the tower body is connected with a gas inlet pipe and a liquid outlet pipe, and the top of the tower body is connected with a gas exhaust pipe correspondingly; a plurality of spraying heads are arranged in the tower body; a pre-charge needle is arranged at the front end of each spraying head and is connected with a high-voltage power supply through a cable; a high-pressure air pipeline is connected to a spraying pipe of the spraying heads and is connected with a high-pressure air compressor; the spraying heads are connected with an absorption liquid pipeline; a valve is arranged on the absorption liquid pipeline and is connected with an absorption liquid conveying pump; the absorption liquid conveying pump is connected with an absorption liquid preparation pool through a pipeline; a demister is arranged above the spraying heads. The pre-charge spraying desulfurization and dust removal device can be used for synchronously removing sulfur dioxide and fine particulate matters in coal-fired flue gas, and is high in efficiency and low in cost.
Description
Technical field
The invention belongs to the purifying coal-fired flue gas technical field, relate in particular to a kind of pre-charged spray desulfation dust-extraction device.
Background technology
As everyone knows, the country that fire coal is main energy sources be take in China, and annual coal-fired consumption surpasses 3,500,000,000 tons, and consequent sulfur dioxide and dust pollution are very serious.One of the highest area as global fine particle, the pollution of the fine particle of China has caused showing great attention to of society, therefore, fine particle will become the main task of several years Air Pollution Control from now on, and its technical research and application will become one of most important work of atmosphere field of Environment Protection.
At present, the removal for particle in coal-fired flue-gas mainly relies on the equipment such as electrostatic precipitator, sack cleaner or electric-bag complex dust collector.The flue dust removal effect that electrostatic precipitator is larger to particle is better, but not ideal enough to the removal efficiency of fine particle.Sack cleaner has removal effect preferably to fine particle, but the bag-type dusting deashing is frequent, reduces the service life of filter bag, and has increased the management difficulty of stable operation.The subject matter that electric-bag complex dust collector exists in the time of solving preferably independent use electric cleaner or sack cleaner.But existing electric-bag complex dust collector is still not high enough to the removal efficiency of fine particle, be difficult to meet the efficient technical need of controlling.And this type of cleaner generally is arranged on wet desulfurization system process section leading portion, although can effectively remove the fine particle in the partial fuel coal flue gas, for the fine particle discharge produced after wet desulphurization, can't control effectively.
Summary of the invention
The object of the present invention is to provide a kind of pre-charged spray desulfation dust-extraction device, it has the advantages that efficiency is high, cost is low, to solve the problem existed on the coal-fired flue gas desulfurization dedusting technology in prior art.
For reaching this purpose, the present invention by the following technical solutions:
A kind of pre-charged spray desulfation dust-extraction device, it comprises tower body, wherein, the bottom of described tower body is connected with air inlet pipe and drain pipe, top corresponding to tower body is connected with blast pipe, by installing rack, a plurality of spray heads are installed in described tower body, and the front end in each spray head on described installing rack is equipped with pre-charged pin, described pre-charged pin connects high voltage source by cable, be connected with high pressure airline on the jet pipe of described spray head, described high pressure airline connects High-Pressure Compressor, described spray head is connected with the absorption liquid pipeline, valve is set on described absorption liquid pipeline and connects the absorption liquid delivery pump, described absorption liquid delivery pump connects absorption liquid dosing pond by pipeline, the top of described spray head is equipped with demister.
Especially, described tower body is divided into cylindrical section and conical section, and described conical section is arranged at the below of cylindrical section, and described air inlet pipe is connected on cylindrical section, and described drain pipe is connected in the bottom of conical section.
Especially, in being provided with oblique lower deflector between demister and spray head, it mainly plays two aspects in described tower body, and the first, the flue gas that enters demister is raised speed, with the quickening treatment effeciency; The second, demister is removed the moisture in flue gas, can flow into rapidly the tower body bottom along deflector.
Especially, the below of described tower body is provided with sedimentation basin, and the bottom of described sedimentation basin is connected with blow-off pipe, and the top of described sedimentation basin connects circulation line and be connected with described absorption liquid dosing pond, on described circulation line, is provided with circulating pump.
Especially, described demister adopts baffle type mist eliminator.
Beneficial effect of the present invention is, compared with prior art described pre-charged spray desulfation dust-extraction device carries out charged in advance by pre-charged pin and high pressure airline to absorption liquid, make absorbent positively charged, and by spray head by the absorption liquid of positively charged with vaporific high velocity jet in wet flue gas desulfurization tower; Spray into absorption liquid droplet positively charged in flue gas due to two like magnetic poles repel each other, so can scatter very soon and fully mix with flue gas; The absorption liquid droplet of positively charged is reacted with the sulfur dioxide in flue gas, and charging performance and the fine particle in flue gas by the absorption liquid droplet carries out the coalescence trapping simultaneously, and it is separated from flue gas; Reacted droplet and being captured by demister the time by the fine particle after coalescence, and condense into large drop, flow into the tower body bottom; The synchronous removal of realization to sulfur dioxide in coal-fired flue-gas and fine particle.Have advantages of that desulfurization and dedusting is effective and cost is low.
The accompanying drawing explanation
Fig. 1 is the structural representation of the pre-charged spray desulfation dust-extraction device that provides of the specific embodiment of the invention 1.
The specific embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by the specific embodiment.
Refer to shown in Fig. 1, Fig. 1 is the structural representation of the pre-charged spray desulfation dust-extraction device that provides of the specific embodiment of the invention 1.
In the present embodiment, a kind of pre-charged spray desulfation dust-extraction device comprises tower body 1, described tower body 1 is divided into cylindrical section and conical section, described conical section is arranged at the below of cylindrical section, the bottom of described cylindrical section is connected with air inlet pipe 2, top corresponding to described cylindrical section is connected with blast pipe 3, the bottom of described conical section is connected with drain pipe 4, by installing rack, a plurality of spray heads 5 are installed in described tower body 1, and the front end in each spray head 5 on described installing rack is equipped with pre-charged pin 6, described pre-charged pin 6 connects high voltage source by cable, be connected with high pressure airline 7 on the jet pipe of described spray head 5, described high pressure airline 7 connects High-Pressure Compressor 8, described spray head 5 is connected with absorption liquid pipeline 9, valve 10 is set on described absorption liquid pipeline 9 and connects absorption liquid delivery pump 11, described absorption liquid delivery pump 11 connects absorption liquid dosing pond 12 by pipeline.
The below of described tower body 1 is provided with sedimentation basin 13, and the bottom of described sedimentation basin 13 is connected with blow-off pipe 14, and the top of described sedimentation basin 13 connects circulation line 15 and be connected with described absorption liquid dosing pond 12, on described circulation line 15, is provided with circulating pump 16.
The top of described spray head 5 is equipped with the deflector 17 under oblique, baffle type mist eliminator 18 is installed in the top of described deflector 17, and arranging of described deflector 17 mainly plays two aspects, first, the flue gas that enters demister is raised speed, to accelerate treatment effeciency; The second, demister is removed the moisture in flue gas, can flow into rapidly the tower body bottom along deflector.
During work, at first the absorbent prepared is placed in absorption liquid dosing pond 12, utilize absorption liquid delivery pump 11 to be delivered to by absorption liquid pipeline 9 in the jet pipe of spray assembly of desulfurizing tower, by pre-charged pin 6 and 7 pairs of absorption liquids of high pressure airline, undertaken charged in advance, make absorption liquid positively charged, and by spray head 5 by the absorption liquid of positively charged with vaporific high velocity jet in wet flue gas desulfurization tower; Positively charged adsorption liquid droplet reacts with the sulfur dioxide in flue gas, and by charged coalescence effect, the fine particle in flue gas is trapped.Large drop in the coalescence process can directly drop to the tower body bottom, and tiny electrically charged drop is captured down during through demister 18, drop to the tower body bottom by deflector 17 and enter sedimentation basin 13 by drain pipe 4, precipitated in sedimentation basin 13 and regenerate, the absorption liquid on sedimentation basin 13 tops is sent into absorption liquid dosing pond 12 through circulating pump 16 and is recycled.
Above embodiment has just set forth basic principle of the present invention and characteristic; the present invention is not limited by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various variations and change, and these variations and change all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. a pre-charged spray desulfation dust-extraction device, it comprises tower body, it is characterized in that, the bottom of described tower body is connected with air inlet pipe and drain pipe, top corresponding to tower body is connected with blast pipe, by installing rack, a plurality of spray heads are installed in described tower body, and the front end in each spray head on described installing rack is equipped with pre-charged pin, described pre-charged pin connects high voltage source by cable, be connected with high pressure airline on the jet pipe of described spray head, described high pressure airline connects High-Pressure Compressor, described spray head is connected with the absorption liquid pipeline, valve is set on described absorption liquid pipeline and connects the absorption liquid delivery pump, described absorption liquid delivery pump connects absorption liquid dosing pond by pipeline, the top of described spray head is equipped with demister.
2. pre-charged spray desulfation dust-extraction device according to claim 1, it is characterized in that, described tower body is divided into cylindrical section and conical section, and described conical section is arranged at the below of cylindrical section, described air inlet pipe is connected on cylindrical section, and described drain pipe is connected in the bottom of conical section.
3. pre-charged spray desulfation dust-extraction device according to claim 1, is characterized in that, in described tower body in the deflector be provided with between demister and spray head under oblique.
4. pre-charged spray desulfation dust-extraction device according to claim 1, it is characterized in that, the below of described tower body is provided with sedimentation basin, the bottom of described sedimentation basin is connected with blow-off pipe, and the top of described sedimentation basin connects circulation line and is connected with described absorption liquid dosing pond, on described circulation line, is provided with circulating pump.
5. according to claim 1 or the described pre-charged spray desulfation dust-extraction device of 3 any one, it is characterized in that, described demister adopts baffle type mist eliminator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310488599.3A CN103480263A (en) | 2013-10-17 | 2013-10-17 | Pre-charge spraying desulfurization and dust removal device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310488599.3A CN103480263A (en) | 2013-10-17 | 2013-10-17 | Pre-charge spraying desulfurization and dust removal device |
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| CN103480263A true CN103480263A (en) | 2014-01-01 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147887A (en) * | 2014-08-27 | 2014-11-19 | 袁磊 | Device and method for removing dust and tar |
| CN106994282A (en) * | 2017-05-19 | 2017-08-01 | 金华三鼎环保机械有限公司 | A kind of carton type paint mist treatment equipment |
| CN107321164A (en) * | 2017-08-29 | 2017-11-07 | 哈尔滨蔚蓝环保设备制造有限公司 | Demister in a kind of high-efficiency wet-desulfurizing tower |
| CN109174456A (en) * | 2018-08-23 | 2019-01-11 | 北京工业大学 | It is a kind of for being atomized the device and method of wet static dedusting |
| CN109432972A (en) * | 2019-01-02 | 2019-03-08 | 江苏龙净节能科技有限公司 | A kind of pre electrified desulfurizer |
| CN109432976A (en) * | 2019-01-02 | 2019-03-08 | 江苏龙净节能科技有限公司 | A kind of modular condensation pre electrified grid |
| CN110075708A (en) * | 2019-05-10 | 2019-08-02 | 陕西青朗万城环保科技有限公司 | A kind of exhaust gas wastewater comprehensive treatment system and method |
| CN110801699A (en) * | 2019-09-28 | 2020-02-18 | 亿利洁能科技（乐陵）有限公司 | Efficient desulfurization, dedusting and purification system for flue gas of coal-fired boiler for steam production |
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| CN102198369A (en) * | 2011-06-01 | 2011-09-28 | 江苏大学 | Swirling inlet type electrostatic spraying wet flue gas desulphurization dedusting apparatus |
| JP2013000631A (en) * | 2011-06-14 | 2013-01-07 | Babcock Hitachi Kk | Wet process flue gas desulfurization apparatus and method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147887A (en) * | 2014-08-27 | 2014-11-19 | 袁磊 | Device and method for removing dust and tar |
| CN106994282A (en) * | 2017-05-19 | 2017-08-01 | 金华三鼎环保机械有限公司 | A kind of carton type paint mist treatment equipment |
| CN107321164A (en) * | 2017-08-29 | 2017-11-07 | 哈尔滨蔚蓝环保设备制造有限公司 | Demister in a kind of high-efficiency wet-desulfurizing tower |
| CN109174456A (en) * | 2018-08-23 | 2019-01-11 | 北京工业大学 | It is a kind of for being atomized the device and method of wet static dedusting |
| CN109432972A (en) * | 2019-01-02 | 2019-03-08 | 江苏龙净节能科技有限公司 | A kind of pre electrified desulfurizer |
| CN109432976A (en) * | 2019-01-02 | 2019-03-08 | 江苏龙净节能科技有限公司 | A kind of modular condensation pre electrified grid |
| CN109432972B (en) * | 2019-01-02 | 2023-12-12 | 江苏龙净节能科技有限公司 | Pre-charged desulfurizing device |
| CN109432976B (en) * | 2019-01-02 | 2024-06-11 | 江苏龙净节能科技有限公司 | Modular condensation pre-charge grid |
| CN110075708A (en) * | 2019-05-10 | 2019-08-02 | 陕西青朗万城环保科技有限公司 | A kind of exhaust gas wastewater comprehensive treatment system and method |
| CN110801699A (en) * | 2019-09-28 | 2020-02-18 | 亿利洁能科技（乐陵）有限公司 | Efficient desulfurization, dedusting and purification system for flue gas of coal-fired boiler for steam production |
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Application publication date: 20140101 |