CN204502671U - Three-phase turbulent current barrel desulfurization and wet method electrostatic collector demist integrated purifying equipment - Google Patents
Three-phase turbulent current barrel desulfurization and wet method electrostatic collector demist integrated purifying equipment Download PDFInfo
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- CN204502671U CN204502671U CN201420801572.5U CN201420801572U CN204502671U CN 204502671 U CN204502671 U CN 204502671U CN 201420801572 U CN201420801572 U CN 201420801572U CN 204502671 U CN204502671 U CN 204502671U
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- wet method
- desulfurization
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Abstract
A kind of three-phase turbulent current barrel desulfurization and wet method electrostatic collector demist integrated purifying equipment, comprise a tower body, and its inside is provided with leakage fluid dram from the bottom up successively, enters mouth, three-phase turbulent current barrel desulfurization section, wet method electrostatic collector demist section and exhaust opening.Described three-phase turbulent current barrel desulfurization section is provided with pretreatment spraying layer, all gas accelerator, after-treatment spraying layer, turbulent liquid film generating means, three process spraying layers and flap demister from the bottom up successively; Described wet method electrostatic collector demist section is provided with atomized water outlet, high-tension electricity place and atomized water spraying layer from lower to upper successively; Described high-tension electricity place is energized by anode system and cathod system and produces; Described atomized water spraying layer comprises feed pipe and is located at the multiple atomizers on feed pipe.
Description
Technical field
The utility model relates to technical field of environment protection equipment, particularly relates to a kind of three-phase turbulent current barrel desulfurization and wet method electrostatic collector demist integrated purifying equipment.
Background technology
In recent years, China central and east continues to meet with haze, the formation of haze is inseparable with the PM2.5 content in air, domestic and international result of study shows, coal-burning power plant's wet desulfurization system does not almost remove the ability of PM2.5 particle, very limited to removing of mercury and SO3 aerosol etc. yet, causes flue dust often to occur the phenomenon such as blue smoke, gypsum rain, serious environment pollution, is detrimental to health.
State Council's " national environmental protection " 12 " planning " requirement in 2011: carry out the pollutant monitoring such as ozone, fine particulates (PM2.5) in regions such as the Beijing-Tianjin wing, the Yangtze River Delta and Pearl River Deltas.On February 29th, 2012, State Council holds standing meeting, requires that " ambient air quality " issuing new revision includes PM2.5 in regular air quality evaluation.Along with country is to the raising of Air Pollutant Emission control overflow, new fossil-fuel power plant atmospheric pollutant emission standard (GB13223-2011) was formally implemented on January 1st, 2012.New emission standard requires all to be greatly improved to flue dust, sulfur dioxide, nitrogen oxidation emission control.In order to meet new discharge standard and solve current power plant ubiquity gypsum rain problem, process the problems such as PM2.5, blue smoke and gypsum rain in the urgent need to system supporting with it and equipment.
Application number is the device that patent of invention provides a kind of wet electrostatic enhancement mode PM2.5, SO2 and Hg removes simultaneously of 201310660280.4, refers to Fig. 1, and it is the structural representation of prior art.The device that this wet electrostatic enhancement mode PM2.5, SO2 and Hg remove simultaneously comprises absorption tower, in described absorption tower, be disposed with wet desulfurization system 1, one-level wet static dedusting system 2, secondary wet static dedusting system 3 by fume treatment flow process; Wet desulfurization system 1, one-level wet static dedusting system 2, secondary wet static dedusting system 3 communicate successively; One-level wet static dedusting system 2 is arranged on top, absorption tower, and secondary wet static dedusting system 3 is arranged in the exhaust pass of absorption tower.This device can by PM2.5, SO
2remove with Hg, but the flooding nozzle in its wet static dedusting system is heavy caliber nozzle simultaneously, and only spray to positive plate, its dust removal mechanism is the control of dust washing away positive plate by moisture film, and this dust removal mechanism dust removing effects is poor, and the removal effect for fines is limited.
Utility model content
The utility model is that the shortcoming overcoming prior art is in deficiency, provides that one can realize desulfurization simultaneously, degree of depth dedusting, the degree of depth remove water smoke multiple action and the simple three-phase turbulent current barrel desulfurization of structure and wet method electrostatic collector demist integrated purifying equipment.
In order to achieve the above object, the utility model by the following technical solutions: comprise a tower body, its inside is provided with leakage fluid dram from the bottom up successively, enters mouth, three-phase turbulent current barrel desulfurization section, wet method electrostatic collector demist section and exhaust opening.Described three-phase turbulent current barrel desulfurization section is provided with pretreatment spraying layer, all gas accelerator, after-treatment spraying layer, turbulent liquid film generating means, three process spraying layers and flap demister from the bottom up successively; Described wet method electrostatic collector demist section is provided with atomized water outlet, high-tension electricity place and atomized water spraying layer from lower to upper successively; Described high-tension electricity place is energized by anode system and cathod system and produces; Described atomized water spraying layer comprises feed pipe and is located at the multiple atomizers on feed pipe.
Further, described turbulent liquid film generating means is made up of urceolus and stem stem; Described urceolus is sheathed on stem stem outside, and is tiltedly installed with blade between urceolus and stem stem; The angle of described blade surface and horizontal plane is 50 ° ~ 70 °; Described blade quantity is 10 ~ 20, and the overlapping area between blade accounts for 30% ~ 60% of blade total surface area; The ratio of described stem stem diameter and outer barrel diameter is 1/6 ~ 1/3.This setting make the resistance of tower body comparatively same category of device greatly reduce, thus reduce energy consumption.
Further, described three process spraying layers are provided with 1 ~ 3 layer of spraying layer; Described spraying layer comprises feed pipe and is located at the multiple heavy caliber conical nozzles on feed pipe.The aperture of described nozzle is 1.5 ~ 2.5 cun.The number of plies of spraying layer determines according to the sulfur dioxide concentration of raw flue gas, if sulfur dioxide concentration is lower than 1000mg/Nm
3, then one deck spraying layer is set; If sulfur dioxide concentration is at 1000 ~ 1400mg/Nm
3in scope, then two-layer spraying layer is set; If sulfur dioxide concentration is higher than 1400mg/Nm
3, then three layers of spraying layer are set.Bigbore conical nozzle can avoid doctor solution to be blocked in supply nozzle inner walls affecting doctor solution.The quantity of nozzle and position are arranged according to the internal diameter of tower body, can cover the cross section of tower body for principle with the doctor solution sprayed.Described nozzle and feed pipe Flange joint.
Further, described anode system is assembled by polylith positive plate and is formed honeycomb fashion combination, and forming multiple cross section between positive plate is hexagonal air chamber; Described cathod system comprises the cathode line be provided with in described air chamber.This setting makes to be seal cavity between each positive plate after assembling, and flue gas without crossfire, thus improves the efficiency of dust collection of Wetting electrostatic cleaner.
Further, described positive plate is assembled by fixture, and described fixture is a cylinder axially offering three socket joint grooves, and the angle of adjacent two socket joint groove center lines is 120 °.By the improvement of clamp structure, be convenient to the assembling of positive plate, and improve precision and the steadiness of positive plate installation.
Further, described positive plate is made up of flexible fibrous material.The deformation ratio of flexible fiber and better to the tack of water, can avoid the formation of channel.
Further, described atomized water spraying layer comprises feed pipe and is located at the multiple atomizers on feed pipe.This setting makes water smoke produce coalescence effect with fines in electric field.Water smoke and grit coalescence can in a disguised form increase grit particle diameter, greatly improve its charge capacity and reduce ratio resistance, thus improving dust removing effects.
Further, described cathode line is bare wire.This arranges the stability that more effectively can ensure the voltage x current of high voltage electric field.
Compared to prior art, a kind of three-phase turbulent current barrel desulfurization of the present utility model and wet method electrostatic collector demist integrated purifying equipment, its atomized water spraying layer is provided with multiple atomizer, water smoke is made to produce coalescence effect with fines in electric field, thus covert increase grit particle diameter, greatly improve its charge capacity and reduce ratio resistance, thus improving dust removing effects.The utility model structure is simple, energy consumption is low, the effect of desulfurization, degree of depth dedusting, degree of depth removal water smoke can be realized simultaneously, can solve in sweetening process cannot remove SO3 acid mist, toxic heavy metal, escape gypsum droplet and produce the problem of white plume, finally realize the terminal advanced treating of flue gas, reach ultra-clean discharge index.
In order to understand better and implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art
Fig. 2 is the structural representation of three-phase turbulent current barrel desulfurization of the present utility model and wet method electrostatic collector demist integrated purifying equipment
Fig. 3 is the structural representation of turbulent liquid film generating means of the present utility model
Fig. 4 be turbulent liquid film generating means of the present utility model the structural representation of blade
Fig. 5 is the structural representation of anode system of the present utility model
Fig. 6 is the structural representation of fixture of the present utility model
Fig. 7 is the schematic cross-section of fixture of the present utility model
Detailed description of the invention
Refer to Fig. 2, it is the structural representation of three-phase turbulent current barrel desulfurization of the present utility model and wet method electrostatic collector demist integrated purifying equipment.A kind of three-phase turbulent current barrel desulfurization of the present utility model and wet method electrostatic collector demist integrated purifying equipment, comprise a tower body; Its inside is provided with leakage fluid dram 50 from the bottom up successively, enters mouth 10, three-phase turbulent current barrel desulfurization section 20, wet method electrostatic collector demist section 30 and exhaust opening 40; Flue gas enters tower body inside from entering mouth 10, successively after three-phase turbulent current barrel desulfurization section 20, sulfur dioxide in flue gas is fully absorbed, and then enter wet method electrostatic collector demist section 30, the gypsum droplet of the superfine grit degree of depth dedusting of pm2.5, degree of depth demist, SO3 acid mist, toxic heavy metal, escape is removed by the degree of depth, and the flue gas after purification is discharged from exhaust opening 40.Be expelled in tower outer circulation pond from the leakage fluid dram 40 below tower body with the liquid of impurity after desulfurization and dedusting.
Particularly, described three-phase turbulent current barrel desulfurization section 20 is provided with pretreatment spraying layer 21, all gas accelerator 22, after-treatment spraying layer 23, turbulent liquid film generating means 24, three process spraying layers 25 and flap demister 26 from the bottom up successively.Please refer to Fig. 3 and Fig. 4, wherein, Fig. 3 is the structural representation of turbulent liquid film generating means of the present utility model; Fig. 4 be turbulent liquid film generating means of the present utility model the structural representation of blade.Described turbulent liquid film generating means 24 is made up of urceolus 241, blade 242 and stem stem 243; It is outside that described urceolus 241 is sheathed on stem stem 243, and described blade 242 tilts to be installed between urceolus 241 and stem stem 243, and blade 242 surface becomes 50 ° ~ 70 ° inclinations angle with horizontal plane.Described blade 242 quantity is 10 ~ 20, and the overlapping area between blade accounts for 30% ~ 60% of blade total surface area; The ratio of described stem stem 243 diameter and urceolus 241 diameter is 1/6 ~ 1/3.
Described three process spraying layers 25 are provided with 1 ~ 3 layer of spraying layer, arrangement in upright arrangement between Multi-layer sprinkling layer.Described spraying layer comprises feed pipe and is located at the multiple heavy caliber conical nozzles on feed pipe.The number of plies of spraying layer determines according to the sulfur dioxide concentration of raw flue gas, if sulfur dioxide concentration is lower than 1000mg/Nm
3, then one deck spraying layer is set; If sulfur dioxide concentration is at 1000 ~ 1400mg/Nm
3in scope, then two-layer spraying layer is set; If sulfur dioxide concentration is higher than 1400mg/Nm
3, then three layers of spraying layer are set.The aperture of described bigbore conical nozzle is 1.5 ~ 2.5 cun, it can avoid doctor solution to be blocked in supply nozzle inner walls affecting doctor solution, its quantity and position are arranged according to the internal diameter of tower body, can cover the cross section of tower body for principle with the doctor solution sprayed.Described nozzle and feed pipe Flange joint.Described pretreatment spraying layer 21 and after-treatment spraying layer 23 all arrange one deck spraying layer, and its structure is identical with the spraying layer structure of three process spray equipments 25.
Further, described all gas accelerator 22 structure is similar to described turbulent liquid film generating means 24, difference is the quantity less (5 ~ 10) of blade, the angle of inclination of blade is less (angle of blade surface and horizontal plane is 10 ° ~ 40 °), light transmittance larger (overlapping area between blade accounts for 10% ~ 40% of blade total surface area), therefore only play even flue gas, can not play any water layer or moisture film, resistance is very little.
Particularly, described wet method electrostatic collector demist section 30 is provided with atomized water outlet 33, high-tension electricity place 31 and atomized water spraying layer 32 from lower to upper successively; Described high-tension electricity place 31 is energized by anode system and cathod system and produces.Described anode system is assembled by polylith positive plate 311 and is formed honeycomb fashion combination, and forming multiple cross section between positive plate is hexagonal air chamber; Described cathod system comprises the cathode line 312 be provided with in described air chamber, and this cathode line 312 is bare wire.Please refer to Fig. 5-7, described positive plate 311 is made up of flexible fibrous material, and assembled by fixture 313, described fixture 313 is a cylinder axially offering three socket joint grooves 3131, and the angle of adjacent two socket joint groove 3131 center lines is 120 °.Described atomized water spraying layer 32 comprises feed pipe and is located at the multiple atomizers on feed pipe.
High-temperature flue gas to be clean flows in tower body from entering mouth 10, after pretreatment spraying layer 21 first carries out cooling and preliminary desulfurization to it, flue gas to accelerate and dispersed through equal gas accelerators 22, forms the turbulent airflow of many High Rotation Speeds, rises around tower body urceolus High Rotation Speed.After-treatment spraying layer 23 carries out desulfurization process to flue gas again, when flue gas after process passes through turbulent liquid film generating means 24 again, with to process the doctor solution that spraying layer 25 sprays for three times and collide, the free-falling doctor solution of flue gas high speed rotary-cut, gas-liquid two-phase constant collision rotary-cut and pulverize mutually and then fully mix, forms at turbulent liquid film generating means 25 upper surface the turbulent liquid film that one deck is full of superfine bubble.Because sulfur-containing smoke gas is extruded cutting with superfine bubble form in the motion of doctor solution high speed, gas-liquid interface is constantly updated, the doctor solution concentration that the sulfurous gas molecular concentration making air film constantly be broken and liquid film are constantly broken is close to gas-liquid main body concentration, resistance to mass tranfer diminishes, gas-liquid-solid three-phase carries out contact mass transfer with huge surface area and minimum interfacial resistance, thus the sulfur dioxide in flue gas is fully absorbed, the flue gas after purification is through carrying out gas-liquid separation through flap demister 26.In this stage, mainly deep desulfuration is carried out to flue gas, remove bulky grain grit.Compared to prior art, because three-phase turbulent current tower desulfurization section 20 of the present utility model is provided with all gas accelerators 22, flue gas is more even in sweetening process, better effects if; In addition, the flue gas after the desulfurization of three-phase turbulent current tower desulfurization section 20, moisture content is higher, mean that in flue gas, water smoke content is high, the coalescence better effects if when wet method electrostatic collector, covert particle size increases, more can reduce the spray flux of wet method electrostatic collector section 30, reduce water consumption.
Flue gas continues upwards to enter the high-tension electricity place 31 formed by anode system and cathod system.Under the condition of supplying power of power supply, current stabilization high voltage electric field occurs between positive plate 311 and cathode line 312, meanwhile, atomized water spraying layer 32 directly sprays to positive plate 311, cathode line 312 and electric field region water smoke.Water smoke charged rear division in powerful electric field is atomized further, and now, charged water spray and pm2.5 grit collide coalescence mutually, and common trend positive plate under the effect of Coulomb force is also trapped by it.Because atomized water spraying layer 32 directly water is sprayed onto on positive plate to form continuous print moisture film, the grit of catching is washed in ash bucket and discharges from atomized water outlet 33 with water by flowing moisture film, and the flue gas after degree of depth dedusting is discharged via exhaust opening 40.In this stage, mainly degree of depth removal is carried out to the gypsum droplet of the superfine grit degree of depth dedusting of pm2.5, degree of depth demist, SO3 acid mist, toxic heavy metal, escape.
Compared to prior art, a kind of three-phase turbulent current barrel desulfurization of the present utility model and wet method electrostatic collector demist integrated purifying equipment, its atomized water spraying layer is provided with multiple atomizer, water smoke is made to produce coalescence effect with fines in electric field, thus covert increase grit particle diameter, greatly improve its charge capacity and reduce ratio resistance, thus improving dust removing effects.The utility model structure is simple, energy consumption is low, the effect of desulfurization, degree of depth dedusting, degree of depth removal water smoke can be realized simultaneously, can solve in sweetening process cannot remove SO3 acid mist, toxic heavy metal, escape gypsum droplet and produce the problem of white plume, finally realize the terminal advanced treating of flue gas, reach ultra-clean discharge index.
Below be only preferred embodiment of the present utility model, it should be pointed out that above-mentioned preferred embodiment should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. three-phase turbulent current barrel desulfurization and a wet method electrostatic collector demist integrated purifying equipment, comprise a tower body, and its inside is provided with leakage fluid dram from the bottom up successively, enters mouth, three-phase turbulent current barrel desulfurization section, wet method electrostatic collector demist section and exhaust opening; It is characterized in that: described three-phase turbulent current barrel desulfurization section is provided with pretreatment spraying layer, all gas accelerator, after-treatment spraying layer, turbulent liquid film generating means, three process spraying layers and flap demister from the bottom up successively; Described wet method electrostatic collector demist section is provided with atomized water outlet, high-tension electricity place and atomized water spraying layer from lower to upper successively; Described high-tension electricity place is energized by anode system and cathod system and produces; Described atomized water spraying layer comprises feed pipe and is located at the multiple atomizers on feed pipe.
2. three-phase turbulent current barrel desulfurization according to claim 1 and wet method electrostatic collector demist integrated purifying equipment, is characterized in that: described turbulent liquid film generating means is made up of urceolus and stem stem; Described urceolus is sheathed on stem stem outside, and is tiltedly installed with blade between urceolus and stem stem; The angle of described blade surface and horizontal plane is 50 ° ~ 70 °; Described blade quantity is 10 ~ 20, and the overlapping area between blade accounts for 30% ~ 60% of blade total surface area; The ratio of described stem stem diameter and outer barrel diameter is 1/6 ~ 1/3.
3. three-phase turbulent current barrel desulfurization according to claim 1 and wet method electrostatic collector demist integrated purifying equipment, is characterized in that: described three process spraying layers are provided with 1 ~ 3 layer of spraying layer; Described spraying layer comprises feed pipe and is located at the multiple heavy caliber conical nozzles on feed pipe.
4. three-phase turbulent current barrel desulfurization according to claim 3 and wet method electrostatic collector demist integrated purifying equipment, is characterized in that: the aperture of described nozzle is 1.5 ~ 2.5 cun.
5. three-phase turbulent current barrel desulfurization according to claim 1 and wet method electrostatic collector demist integrated purifying equipment, it is characterized in that: described anode system is assembled by polylith positive plate and formed honeycomb fashion combination, and forming multiple cross section between positive plate is hexagonal air chamber; Described cathod system comprises the cathode line be provided with in described air chamber.
6. three-phase turbulent current barrel desulfurization according to claim 5 and wet method electrostatic collector demist integrated purifying equipment, it is characterized in that: described positive plate is made up of flexible fibrous material, and assembled by fixture, described fixture is a cylinder axially offering three socket joint grooves, and the angle of adjacent two socket joint groove center lines is 120 °.
7. three-phase turbulent current barrel desulfurization according to claim 5 and wet method electrostatic collector demist integrated purifying equipment, is characterized in that: described cathode line is bare wire.
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| CN201420801572.5U CN204502671U (en) | 2014-12-16 | 2014-12-16 | Three-phase turbulent current barrel desulfurization and wet method electrostatic collector demist integrated purifying equipment |
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| CN201420801572.5U CN204502671U (en) | 2014-12-16 | 2014-12-16 | Three-phase turbulent current barrel desulfurization and wet method electrostatic collector demist integrated purifying equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233600A (en) * | 2015-09-17 | 2016-01-13 | 张嘉杰 | Integrated desulphurization and dedusting apparatus |
| CN107398157A (en) * | 2016-05-19 | 2017-11-28 | 江苏中矿重型装备有限公司 | Desulfurization and the two-in-one absorption tower of wet cottrell |
-
2014
- 2014-12-16 CN CN201420801572.5U patent/CN204502671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233600A (en) * | 2015-09-17 | 2016-01-13 | 张嘉杰 | Integrated desulphurization and dedusting apparatus |
| CN107398157A (en) * | 2016-05-19 | 2017-11-28 | 江苏中矿重型装备有限公司 | Desulfurization and the two-in-one absorption tower of wet cottrell |
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