CN104906949B - A kind of device for wet desulphurization absorption tower flue gas deep purifying - Google Patents

A kind of device for wet desulphurization absorption tower flue gas deep purifying Download PDF

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Publication number
CN104906949B
CN104906949B CN201510340946.7A CN201510340946A CN104906949B CN 104906949 B CN104906949 B CN 104906949B CN 201510340946 A CN201510340946 A CN 201510340946A CN 104906949 B CN104906949 B CN 104906949B
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absorption tower
flue gas
wet desulphurization
deep purifying
spiral board
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CN104906949A (en
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赵云才
王亮
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BEIJING NOROMO ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
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田鹏程
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Abstract

The present invention relates to flue gases purification fields, and in particular to a kind of device for wet desulphurization absorption tower flue gas deep purifying.A kind of device for wet desulphurization absorption tower flue gas deep purifying provided by the invention, the absorption tower of stock tank is equipped with including bottom, the top side wall on absorption tower is equipped with exhanst gas outlet, absorption tower is equipped with gas inlet on the side wall higher than stock tank liquid level, according to spraying layer and support plate is sequentially with from bottom to top between gas inlet and exhanst gas outlet, support plate is equipped with several deep purifiers arranged according to maximum quantity queueing discipline.The present invention carries the kinetic energy that can utilize flue gas in absorption tower, generating gas-liquid impingement in blade and the eddy flow barrel of spiral board when flue gas being made to pass through the spiral board of clarifier makes the reunion that collides with each other of the finely ground particles such as fine drop, fine solid particle particle, aerosol in flue gas be condensed into big drop, big drop reaches removal finely ground particles by the capture of swirl cylinder surface liquid film again, achievees the purpose that deep purifying flue gas.

Description

A kind of device for wet desulphurization absorption tower flue gas deep purifying
Technical field
The present invention relates to flue gases purification fields, and in particular to one kind being used for wet desulphurization absorption tower flue gas deep purifying Device.
Background technology
Currently, domestic flue gas or industrial tail gas pollutant abatement technology are more, wherein comparative maturity, representative technology Have:Administer sulfur dioxide (SO2) pollution the Wet Flue Gas Desulfurization Techniques such as limestone-gypsum method, ammonia process, Dual alkali, wet desulphurization skill The fine droplet that installation demister removal spray generates in the process is both needed to after the spray washing purification of art;With regard to current actual conditions, Either Flat defroster or ridge type demister are less than 5um dust and composition to being less than in 5um drops and flue gas The removal efficiency of the finely ground particles such as sulfate radical, inferior sulfate radical, nitrate anion, the nitrite anions of the aerosol of PM2.5 is extremely difficult to Efficiency meet the requirement of environmental protection.For the environmental requirement for meeting more and more stringent, wet desulphurization device rear end is both needed to installation wet type electricity and removes Dirt device carries out deep purifying.Although wet-esp can effectively remove finely ground particles and aerosol, wet-esp is deposited Bulky and hulking in process equipment, occupied space is big, and initial cost is high, and operation energy consumption is high, and transformation difficulty is big etc. on constructed item Problems.
101837238 A of Chinese patent CN disclose a kind of desulfuration absorbing tower, including:Tower body, the top tool of the tower body There is the lower part of neat stress outlet and the tower body that there is mixture export;Mixing tube, under the lower end and tower body of the mixing tube Portion is connected, and the upper end of the mixing tube has smoke inlet;And desulfurizer nozzle, the desulfurizer nozzle are inserted into mixing With the injection desulfurization agent into mixing tube in pipe, the desulfurizer nozzle is inserted into from the smoke inlet in mixing tube.The patent It could not solve the problems, such as deep purifying flue gas.
Invention content
In order to overcome the defects of the prior art, the present invention provides a kind of depth that can be used for after wet desulphurization device spray Purifier is spent, the kinetic energy of flue gas in absorption tower can be utilized, in the blade and swirl cylinder of spiral board when flue gas being made to pass through spiral board Wall, which generates gas-liquid impingement, makes the finely ground particles such as fine drop, fine solid particle particle, aerosol in flue gas collide with each other reunion It is condensed into big drop, big drop reaches removal finely ground particles by the capture of swirl cylinder surface liquid film again, reaches deep purifying flue gas Purpose.
The present invention is achieved through the following technical solutions:A kind of dress for wet desulphurization absorption tower flue gas deep purifying Set, include the absorption tower that bottom is equipped with stock tank, the top side wall on the absorption tower is equipped with exhanst gas outlet, the absorption tower higher than The side wall of stock tank liquid level is equipped with gas inlet, according to sequentially setting from bottom to top between the gas inlet and exhanst gas outlet There are spraying layer and support plate, the support plate to be equipped with several deep purifiers.
Further, the deep purifier includes the swirl cylinder that bottom centre position is equipped with wash tub pipe, the eddy flow The top center of cylinder is equipped with ultraviolet lamp, and the wash tub pipe is equipped with flooding nozzle and spiral board.
Further, the spiral board includes multiple blades according to concentric arrays, and the blade is equipped with relative to rotation The inclined inclination angle in cross section of flow cartridge, 20~60 ° of the angular range at the inclination angle.
Further, the projection Duplication range of the blade is between -20%~+50%.
Further, the spiral board is one and is arranged in flooding nozzle lower part.
Further, the spiral board is multistage setting and is upper and lower serial arrangement.
Further, distance range is 0.15~1.5 meter between the adjacent spiral board.
Further, the spiral board top of the swirl cylinder center is equipped with blind plate, and the diameter range of the blind plate is 0.1-0.2 meters.
Further, within the scope of the support plate is arranged on spraying layer 1~3 meter.
Further, the spraying layer is multilayer and is placed equidistant with.
Device of the present invention for wet desulphurization absorption tower flue gas deep purifying compared with prior art, superior effect It is:
1, traditional ridge type or plate-type dedusting device need not be set in absorbing tower.What the purifier of the present invention allowed Flow of flue gas speed is high, and admissible flue gas flow rate is 4-6m/s, to without increasing absorption tower diameter, be using former absorption tower Can, individual wet electrical dust precipitator is set without transformation or behind absorption tower.The height of the purifier of the present invention is low, only 3m high is highly suitable with ridge in conventional tower or board-like demister height;
2, dedusting demisting and aerosol purification efficiency are high.Fine drop in flue gas, thin can be effectively removed by the present apparatus The finely ground particles such as micro-dust particles, aerosol.When wet flue gas after spray cleaning passes through electromechanical integration device for deep cleaning, In swirl cylinder and its top forms the violent rotation of gas-liquid two-phase and disturbs, and makes fine drop in flue gas, fine solid particle The reunion that collides with each other of the finely ground particles such as grain, aerosol is condensed into big drop, and big drop is reached by the capture of swirl cylinder surface liquid film again To the purification purpose of removal finely ground particles.Meanwhile rotation ascending motion, flue gas are formed in flue gas after flowing through spiral-plate leaf In pollutant accelerate to move to swirl cylinder under the action of the centrifugal force.Since swirl cylinder surface is coated with photocatalyst, in pollutant The substances such as aerosol, NOx are decomposed into harmless N under catalytic action2And water;
3, it needs to stop electric discharge in cleaning due to traditional wet electric precipitator, there is short-term dust emission high level. The present invention has dust removal with machine effect due to itself, it is ensured that efficiency of dust collection declines few during flushing;
4, this invention also solves the space requirement height of electric precipitation transformation, difficulty greatly, long period, initial cost and operation is transformed The problems such as costly, need to be only transformed using original absorption tower space, not change absorption tower external structure;
5, the system is succinct, and O&M is simple, and system reliability is high;
6, the present invention can play the role of certain de- NOx, ultra-clean to present NOx can discharge as low as.
Description of the drawings
Fig. 1 is the structural schematic diagram of the device of the present invention for wet desulphurization absorption tower flue gas deep purifying;
Fig. 2 is the deep purifier arrangement in the device of the present invention for wet desulphurization absorption tower flue gas deep purifying Structure chart;
Fig. 3 is the internal structure schematic diagram of the deep purifier in the present invention.
Reference numeral is as follows:
The absorption towers 1-, 2- stock tanks, 3- gas inlets, 4- spraying layers, 5- support plates, 6- deep purifiers, 61- flushing waters Pipe, 62- swirl cylinders, 63- spiral boards, 64- flooding nozzles, 65- ultraviolet lamps, 7- exhanst gas outlets, 8- blind plates.
Specific implementation mode
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figs. 1-3, it illustrates provided by the invention a kind of for wet desulphurization absorption tower flue gas deep purifying Device, including bottom are equipped with the absorption tower 1 of stock tank 2, and the top side wall on the absorption tower 1 is equipped with exhanst gas outlet 7, the absorption tower 1 on the side wall higher than 2 liquid level of stock tank be equipped with gas inlet 3, between the gas inlet 3 and exhanst gas outlet 7 according to by Lower upstream sequence is equipped with spraying layer 4 and support plate 5, and the support plate 5 is equipped with several and is arranged according to maximum quantity queueing discipline The deep purifier 6 of row.Deep purifier 6 includes the swirl cylinder 62 that bottom centre position is equipped with wash tub pipe 61, the eddy flow The top center of cylinder 62 is equipped with ultraviolet lamp 65, and the wash tub pipe 61 is equipped with flooding nozzle 64 and spiral board 63.It is preferred that The spiral board 63 includes multiple blades according to concentric arrays, and the blade is equipped with to incline relative to the cross section of swirl cylinder 62 Oblique inclination angle, 20~60 ° of the angular range at the inclination angle, the projection Duplication range of the blade is -20%~+50% Between, project Duplication:The difference that the overlapping area of all blade orthographic projections subtracts the interval area between all blade orthographic projections is removed With the sum of the area of all blade orthographic projections.In the present embodiment, preferably spiral board 63 is one and is arranged under flooding nozzle 64 Portion.Further preferably, the spiral board 63 is multistage setting and is upper and lower serial arrangement, the spacing of the adjacent spiral board 63 From ranging from 0.15~1.5 meter.63 top of spiral board of 62 center of the swirl cylinder be equipped with blind plate 8, the blind plate 8 it is straight Ranging from 0.1-0.2 meters of diameter, the support plate 5 are arranged within the scope of 1~3 meter on spraying layer 4.The wherein spraying layer 4 For multilayer and it is placed equidistant with.The material of the blade of spiral board 63 selects acid-resistant stainless steel plus applies glass flake erosion resistant coating respectively The material of one kind in carbon steel, fiberglass, PP and PVC, swirl cylinder 62 is stainless steel, plastics etc..
It is rearranged as shown in Fig. 2, deep purifier 6 is multiple haplotypes.The quantity of 1 deep purifier of each absorption tower It is determined by the diameter on absorption tower, is subject to the arrangement of maximum quantity.Between each deep purifier and clarifier device and tower wall it Between gap using blind plate 8 block.The blind plate 8 of closure plays the role of limit and fixed simultaneously.
As shown in figure 3, deep purifier 6 is up-down structure, lower part is the mechanical dedusting Defrosting structure of spiral board, and top is Ultraviolet lamp 65 plus photocatalyst, the series of spiral board 63 and the final clean-up effect of the highly desirable basis of ultraviolet lamp 65 determine. Blade in spiral board 63 realizes change and acceleration to the direction of motion of finely ground particles in flue gas and flue gas, to make flue gas Small water droplets and finely ground particles form turbulent flow and simultaneously fully hit, and make fine drop in flue gas, fine solid particle particle, aerosol The reunion that collides with each other of equal finely ground particles is condensed into big drop.Its type of flow is after the blade for passing through spiral board 63 due to flue gas Rotation rises in swirl cylinder 62, and separation reaches 62 table of swirl cylinder to the drop in flue gas from flue gas under the influence of centrifugal force Face, then efficiently removal finely ground particles are reached by the capture of swirl cylinder wall surface liquid film.Meanwhile being built in the purple at 62 center of swirl cylinder Outer lamp 65 discharges ultraviolet light so that photocatalyst has removing NOx, NH under the irradiation of ultraviolet light3With the polluters such as aerosol Catalyst.
Present invention is not limited to the embodiments described above, without departing from the essence of the present invention, this field skill Any deformation, improvement, the replacement that art personnel are contemplated that each fall within protection scope of the present invention.

Claims (7)

1. a kind of device for wet desulphurization absorption tower flue gas deep purifying, including bottom are equipped with the absorption tower of stock tank (2) (1), the top side wall of the absorption tower (1) is equipped with exhanst gas outlet (7), and the absorption tower (1) is higher than stock tank (2) liquid level Side wall be equipped with gas inlet (3), according to being sequentially with from bottom to top between the gas inlet (3) and exhanst gas outlet (7) Spraying layer (4) and support plate (5), the support plate (5) are equipped with several deep purifiers (6), the deep purifier (6) The swirl cylinder (62) of wash tub pipe (61) is equipped with including bottom centre position, the top center of the swirl cylinder (62) is equipped with Ultraviolet lamp (65), which is characterized in that the wash tub pipe (61) is equipped with flooding nozzle (64) and spiral board (63), the eddy flow Spiral board (63) top of cylinder (62) center is equipped with blind plate (8), and the spiral board (63) is multistage setting and is to go here and there up and down Join arrangement.
2. being used for the device of wet desulphurization absorption tower flue gas deep purifying according to claim 1, which is characterized in that the rotation Flowing plate (63) includes multiple blades according to concentric arrays, and the blade is equipped with to be tilted relative to the cross section of swirl cylinder (62) Inclination angle, 20~60 ° of the angular range at the inclination angle.
3. being used for the device of wet desulphurization absorption tower flue gas deep purifying according to claim 2, which is characterized in that the leaf The projection Duplication range of piece is between -20%~+50%.
4. being used for the device of wet desulphurization absorption tower flue gas deep purifying according to claim 1, which is characterized in that adjacent Distance range is 0.15~1.5 meter between the spiral board (63).
5. being used for the device of wet desulphurization absorption tower flue gas deep purifying according to claim 1, which is characterized in that described blind The diameter range of plate (8) is 0.1~0.2 meter.
6. being used for the device of wet desulphurization absorption tower flue gas deep purifying according to claim 1, which is characterized in that the branch Fagging (5) is arranged within the scope of 1~3 meter on spraying layer (4).
7. being used for the device of wet desulphurization absorption tower flue gas deep purifying according to claim 1, which is characterized in that the spray Drenching layer (4) is multilayer and is placed equidistant with.
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CN105498527A (en) * 2016-01-04 2016-04-20 田鹏程 Device for deep purification of smoke
CN105854561B (en) * 2016-05-10 2019-02-12 浙江天蓝环保技术股份有限公司 The device and technique that a kind of flue gas desulfurization, dedusting collaboration are administered
WO2018176371A1 (en) * 2017-03-31 2018-10-04 通用电气公司 Flue gas treatment device and system

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Publication number Priority date Publication date Assignee Title
CN101342455A (en) * 2008-08-28 2009-01-14 浙江天蓝脱硫除尘有限公司 Rotational flow and spray combined desulfurizing device
KR101382611B1 (en) * 2012-02-14 2014-04-14 정일교 Non contact swirl type optical composite catalytic oxidation deodorizing apparatus
CN104368217A (en) * 2014-11-07 2015-02-25 北京中能诺泰节能环保技术有限责任公司 Combined cyclonic demisting and dust removal system and treatment process thereof
CN204320099U (en) * 2014-12-03 2015-05-13 田鹏程 A kind of flue gas device for deep cleaning
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CN204768272U (en) * 2015-06-18 2015-11-18 田鹏程 A device for wet flue gas desulfurization absorption tower flue gas deep purification

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Effective date of registration: 20190409

Address after: 100070 7th Floor, 7th Floor, Hanwei International Plaza, No. 186 West South Fourth Ring Road, Fengtai District, Beijing

Patentee after: BEIJING NOROMO ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

Address before: 100097 7 7th Floor, Hanwei International Plaza, No. 186 West South Fourth Ring Road, Fengtai District, Beijing

Patentee before: Tian Pengcheng