CN104888600A - Dual-cyclone dust removal and desulfurization multiplier for wet flue gas desulfurization absorption tower - Google Patents
Dual-cyclone dust removal and desulfurization multiplier for wet flue gas desulfurization absorption tower Download PDFInfo
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- CN104888600A CN104888600A CN201510341887.5A CN201510341887A CN104888600A CN 104888600 A CN104888600 A CN 104888600A CN 201510341887 A CN201510341887 A CN 201510341887A CN 104888600 A CN104888600 A CN 104888600A
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Abstract
The invention relates to the technical field of flue gas purification, particularly to a dual-cyclone dust removal and desulfurization multiplier for a wet flue gas desulfurization absorption tower. According to the absorption tower utilizing the dual-cyclone dust removal and desulfurization multiplier, a dual-cyclone multiplier and spray layers are sequentially arranged between a flue gas inlet and a flue gas outlet from bottom to top, the dual-cyclone multiplier comprises the maximum quantity of dual-cyclone multiplier units regularly arranged, each dual-cyclone multiplier unit comprises an inner cyclone cylinder arranged inside an outer cyclone cylinder, a blind cylinder is arranged in the center of each inner cyclone cylinder, the inner cyclone cylinders are provided with inner cyclone blades, and the outer cyclone cylinders are provided with outer cyclone blades. By the aid of kinetic energy of flue gas in the absorption tower, tiny particulate matters in the flue gas collide with one another, are agglomerated and are condensed into large drops when the flue gas passes through the blades of the dual-cyclone multiplier and is subjected to gas-liquid impact on walls of the cyclone cylinders, then the large drops are captured by liquid membranes on surfaces of the cyclone cylinders, so that the purification purpose of removing tiny particulate matter is achieved, the SO2 removal reaction can also be accelerated, and the removal efficiency is improved.
Description
Technical field
The present invention relates to flue gases purification field, be specifically related to a kind of two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower.
Background technology
At present, domestic flue gas or industrial tail gas pollutant abatement technology more, wherein comparative maturity, representative technology have: administer sulfur dioxide (SO
2) Wet Flue Gas Desulfurization Technique etc. such as limestone-gypsum method, ammonia process, Dual alkali that pollutes.For present ultra-clean emission request, SO
2discharge reaches 35mg/Nm3, and dust reaches 5mg/Nm3, and conventional Wet Flue Gas Desulfurization Technique is generally adopt double absorption column series connection or single-stage absorption tower to increase the schemes such as spraying layer.Above-mentioned modification scheme transformation is long in time limit, and take up an area large, cost is high, and operating cost is high.And some engineering is because factory site problem cannot be transformed.
Chinese patent CN 101837238 A discloses a kind of desulfuration absorbing tower, comprising: tower body, and the top of described tower body has neat stress outlet and the bottom of described tower body has mixture export; Mixing tube, the lower end of described mixing tube is connected with the bottom of tower body, and the upper end of described mixing tube has smoke inlet; And desulfurizer nozzle, described desulfurizer nozzle is inserted into to injection desulfurization agent in mixing tube in mixing tube, and described desulfurizer nozzle is inserted in mixing tube from described smoke inlet.This patent could not solve SO
2remove the problem that speed responsing is slow and removal efficiency is low.
Summary of the invention
In order to overcome defect of the prior art, the invention provides the kinetic energy utilizing flue gas in absorption tower, making flue gas produce gas-liquid impingement through the cyclone of two cyclone dust-removal and desulfurizing synergy at blade and the cyclone barrel of cyclone makes the reunion that collides with each other of the finely ground particles in flue gas be condensed into large drop, and large drop is caught by the surperficial liquid film of cyclone cylinder the purification object reaching removal finely ground particles again; Meanwhile, because flue gas is through cyclone blade, strong rotational flow occurs, the kinetic energy of flue gas increases, and stronger collision occurs for flue gas and sprayed slurry.The liquid film of slurries is more easily broken, thus accelerates SO
2remove reaction, thus improve removal efficiency.In addition, this device is inside and outside pair of cyclone, and the flue gas direction of rotation of inside and outside cyclone is for reversely rotating.The smoke collision effect that flue gas is reversely rotated by two-way after inside and outside cyclone is stronger.
The present invention is achieved through the following technical solutions: a kind of two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower, comprise the absorption tower that bottom is provided with stock tank, the top side wall on described absorption tower is provided with exhanst gas outlet, described absorption tower is provided with gas approach on the sidewall higher than stock tank liquid level, according to being sequentially with two cyclone synergistic device and spraying layer from bottom to top between described gas approach and exhanst gas outlet, described pair of cyclone synergistic device comprises several two cyclone synergistic device unit arranged according to maximum quantity queueing discipline.
Further, described pair of cyclone synergistic device unit comprises the interior cyclone cylinder being arranged on outer cyclone cylinder inside, and described interior cyclone cylinder center is provided with blind cylinder, and described interior cyclone cylinder is provided with interior cyclone blade, and described outer cyclone cylinder is provided with outer cyclone blade.
Further, described interior cyclone blade is provided with the inclination angle tilted relative to the cross section of interior cyclone cylinder, the angular range at described inclination angle 20 ~ 60 °.
Further, described outer cyclone blade is provided with the inclination angle tilted relative to the cross section of outer cyclone cylinder, the angular range at described inclination angle 20 ~ 60 °.
Further, the projecting blade Duplication scope of described interior cyclone blade and outer cyclone blade is between-20% ~+50%.
Further, the direction of rotation of described interior cyclone blade and outer cyclone blade is mutually oppositely arrange.
Further, the cyclone blade in described pair of cyclone synergistic device unit is that multilayer is arranged.
Further, between described pair of adjacent cyclone synergistic device cyclone blade, distance range is 0.15 ~ 1.5 meter.
Further, within the scope of 1 ~ 3 meter that the described pair of cyclone synergistic device is arranged under spraying layer.
Further, between described pair of cyclone synergy unit and and the tower wall on absorption tower between space be provided with blind plate.
Compared with prior art, superior effect is a kind of two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower of the present invention:
1, the SR of two cyclone dust-removal and desulfurizing synergistic devices of this wet desulphurization device is low.
2, efficiency of dust collection is high.The finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol effectively can be removed by this device.Wet flue gas after spray cleaning is through two cyclone dust-removal and desulfurizing synergistic device, in cyclone and above form violent rotation and the disturbance of gas-liquid two-phase, the reunion that collides with each other of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol is made to be condensed into large drop, large drop is caught by cyclone cylinder surface liquid film the purification object reaching and remove finely ground particles again, thus improves the removal efficiency of finely ground particles in flue gas.
3, desulfuration efficiency is high.Under the effect not increasing spraying layer in tower, can improve desulfuration efficiency, its effect is greater than the effect increasing one deck spraying layer.Simultaneously with increase spraying layer ratio, the not power consumption of two cyclone dust-removal and desulfurizing synergistic device, energy consumption is low.Effectively reduce operating cost.
4, meanwhile also solve the problems such as the space requirement increasing spraying layer is large, difficulty large, transformation cycle length, initial cost and operating cost are high, only space, original absorption tower need be utilized to transform, not change absorption tower external structure.
5, this system is succinct, and O&M is simple, and system reliability is high
Accompanying drawing explanation
Fig. 1 is the two cyclone dust-removal and desulfurizing synergistic device structural representations for wet flue gas desulfurization absorption tower of the present invention;
Fig. 2 is the structural representation of the two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower of the present invention;
Fig. 3 is the structural representation of cyclone dust-removal and desulfurizing synergistic device unit two described in the present invention.
Reference numeral is as follows:
1-absorption tower, 2-stock tank, 3-gas approach, the two cyclone synergistic device of 4-, the blind cylinder of 41-, the outer cyclone blade of 42-, cyclone blade in 43-, the outer cyclone cylinder of 44-, cyclone cylinder in 45-, 5-spraying layer, 6-exhanst gas outlet, 7-blind plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
As shown in Figure 1-2, illustrate a kind of two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower provided by the invention, be mainly used in this absorption tower of two cyclone dust-removal and desulfurizing synergy, comprise the absorption tower 1 that bottom is provided with stock tank 2, the top side wall on described absorption tower 1 is provided with exhanst gas outlet 6, described absorption tower 1 is provided with gas approach 3 on the sidewall higher than stock tank 2 liquid level, according to being sequentially with two cyclone synergistic device 4 and spraying layer 5 from bottom to top between described gas approach 3 and exhanst gas outlet 6, described pair of cyclone synergistic device 4 comprises and arranges several pair of cyclone synergistic device unit.As shown in Figure 3, described pair of cyclone synergistic device unit comprises the interior cyclone cylinder 45 being arranged on outer cyclone cylinder 44 inside, described interior cyclone cylinder 45 center is provided with blind cylinder 41, described interior cyclone cylinder 45 is provided with interior cyclone blade 43, described outer cyclone cylinder 44 is provided with outer cyclone blade 42, described interior cyclone blade 43 is provided with the inclination angle tilted relative to the cross section of interior cyclone cylinder 45, the angular range at described inclination angle 20 ~ 60 °, described outer cyclone blade 42 is provided with the inclination angle tilted relative to the cross section of outer cyclone cylinder 44, the angular range at described inclination angle 20 ~ 60 °, the projecting blade Duplication scope of described interior cyclone blade 43 and outer cyclone blade 42 is between-20% ~+50%, projection Duplication: the overlapping area of all blade orthographic projections deducts the area sum of difference divided by all blade orthographic projections of the interval area between all blade orthographic projections.The direction of rotation of described interior cyclone blade 43 and outer cyclone blade 42 is mutually oppositely arrange, the smoke collision effect that flue gas is reversely rotated by two-way after inside and outside cyclone is stronger, the material of blade selects acid-resistant stainless steel respectively, the one added in the carbon steel of painting glass flake anticorrosive coat, fiberglass, PP and PVC, and the material of whirl cylinder 62 is stainless steel, plastics etc.In the present embodiment, preferred described pair of cyclone synergistic device 4 is that multilayer is arranged, and between described pair of adjacent cyclone synergistic device 4, distance range is 0.15 ~ 1.5 meter, and the described pair of cyclone synergistic device 4 is arranged within the scope of 1 ~ 3 meter under spraying layer 5.Also preferred, between described pair of cyclone synergy unit and and the tower wall on absorption tower 1 between space adopt blind plate 7 shutoff.Two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower provided by the invention utilize the kinetic energy of flue gas in absorption tower 1, making flue gas produce gas-liquid impingement through cyclone at the blade of cyclone and cyclone barrel makes the reunion that collides with each other of the finely ground particles in flue gas be condensed into large drop, and large drop is caught by cyclone cylinder surface liquid film the purification object reaching and remove finely ground particles again; Meanwhile, because flue gas is through cyclone blade, strong rotational flow occurs, the kinetic energy of flue gas increases, and stronger collision occurs for flue gas and sprayed slurry.The liquid film of slurries is more easily broken, thus accelerates SO
2remove reaction, thus improve removal efficiency.
The present invention is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present invention, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into protection scope of the present invention.
Claims (10)
1. the two cyclone dust-removal and desulfurizing synergistic devices for wet flue gas desulfurization absorption tower, comprise the absorption tower (1) that bottom is provided with stock tank (2), the top side wall on described absorption tower (1) is provided with exhanst gas outlet (6), described absorption tower (1) is provided with gas approach (3) on the sidewall higher than stock tank (2) liquid level, it is characterized in that, according to being sequentially with two cyclone synergistic device (4) and spraying layer (5) from bottom to top between described gas approach (3) and exhanst gas outlet (6), described pair of cyclone synergistic device (4) comprises several pair of cyclone synergy unit.
2. according to claim 1 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, described pair of cyclone synergy unit comprises the interior cyclone cylinder (45) being arranged on outer cyclone cylinder (44) inside, described interior cyclone cylinder (45) center is provided with blind cylinder (41), described interior cyclone cylinder (45) is provided with interior cyclone blade (43), and described outer cyclone cylinder (44) is provided with outer cyclone blade (42).
3. according to claim 2 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, described interior cyclone blade (43) is provided with the inclination angle tilted relative to the cross section of interior cyclone cylinder (45), the angular range at described inclination angle 20 ~ 60 °.
4. according to claim 2 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, described outer cyclone blade (42) is provided with the inclination angle tilted relative to the cross section of outer cyclone cylinder (44), the angular range at described inclination angle 20 ~ 60 °.
5. according to claim 2 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, the projecting blade Duplication scope of described interior cyclone blade (43) and outer cyclone blade (42) is between-20% ~+50%.
6. according to claim 2 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, the direction of rotation of described interior cyclone blade (43) and outer cyclone blade (42) is mutually oppositely arrange.
7. according to claim 1 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, described pair of cyclone synergistic device (4) is multilayer setting.
8. be applied to two cyclone dust-removal and desulfurizing synergistic devices of wet desulphurization absorption tower according to claim 7, it is characterized in that, between described pair of adjacent cyclone synergistic device (4), distance range is 0.15 ~ 1.5 meter.
9. according to claim 1 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, the described pair of cyclone synergistic device (4) is arranged within the scope of 1 ~ 3 meter under spraying layer (5).
10., according to claim 1 for two cyclone dust-removal and desulfurizing synergistic devices of wet flue gas desulfurization absorption tower, it is characterized in that, between described pair of cyclone synergy unit and and the tower wall of absorption tower (1) between space be provided with blind plate (7).
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Cited By (8)
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| CN105498527A (en) * | 2016-01-04 | 2016-04-20 | 田鹏程 | Device for deep purification of smoke |
| CN105771515A (en) * | 2016-04-29 | 2016-07-20 | 武汉天空蓝环保科技有限公司 | Rotation, confluence and agglomeration tower and method for agglomeration dedusting |
| CN106377967A (en) * | 2016-11-29 | 2017-02-08 | 永清环保股份有限公司 | Wet desulfurization absorption tower and self-cleaning flue gas dust removal system thereof |
| CN106422639A (en) * | 2016-12-07 | 2017-02-22 | 北京中能诺泰节能环保技术有限责任公司 | Dust removal desulfurization augmenter and wet process desulfurization device |
| CN106731376A (en) * | 2016-12-02 | 2017-05-31 | 浙江天地环保科技有限公司 | A kind of bispin purifier suitable for absorption tower |
| CN106823715A (en) * | 2017-03-03 | 2017-06-13 | 北京朗净时代环境科技有限公司 | A kind of pair of cyclone desulfurization synergistic device and a kind of multistage double cyclone desulfurization synergistic devices |
| CN109126406A (en) * | 2018-06-22 | 2019-01-04 | 西安西矿环保科技有限公司 | Deep desulfuration demisting dust separation system for cement kiln end flue gas |
| CN110180366A (en) * | 2019-07-08 | 2019-08-30 | 通用技术集团工程设计有限公司 | A kind of smoke processing system |
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| CN106823715A (en) * | 2017-03-03 | 2017-06-13 | 北京朗净时代环境科技有限公司 | A kind of pair of cyclone desulfurization synergistic device and a kind of multistage double cyclone desulfurization synergistic devices |
| CN106823715B (en) * | 2017-03-03 | 2023-10-20 | 北京朗净时代环境科技有限公司 | Double-cyclone desulfurization synergistic device and multistage double-cyclone desulfurization synergistic device |
| CN109126406A (en) * | 2018-06-22 | 2019-01-04 | 西安西矿环保科技有限公司 | Deep desulfuration demisting dust separation system for cement kiln end flue gas |
| CN110180366A (en) * | 2019-07-08 | 2019-08-30 | 通用技术集团工程设计有限公司 | A kind of smoke processing system |
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