CN203853014U - Mist spray and water spray desulfurization tower - Google Patents
Mist spray and water spray desulfurization tower Download PDFInfo
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- CN203853014U CN203853014U CN201420172782.2U CN201420172782U CN203853014U CN 203853014 U CN203853014 U CN 203853014U CN 201420172782 U CN201420172782 U CN 201420172782U CN 203853014 U CN203853014 U CN 203853014U
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Abstract
The utility model relates to a mist spray and water spray desulfurization tower. A demister is arranged on the upper part of a tower body, and a smoke outlet is formed above the demister; a water spray stage and a mist spray stage are arranged in the middle of the tower body, wherein a plurality of nozzles which spray downwards are arranged at the water spray stage, a plurality of atomizing nozzles which spray in the side direction are distributed on the tower wall on the side surface of the mist spray stage, a confluence demisting baffle plate is arranged at the mist spray stage, the baffle structures are different according to different vertical orders of the water spray stage and the mist spray stage, and a seriflux area is formed at the bottom of the tower body and is positioned below the water spray stage and the mist spray stage. According to the mist spray and water spray desulfurization tower, the design scheme is flexible, the confluence demisting smoke baffle plate is utilized, and the water spray process and the mist spray process are effectively combined, so that the desulfurization tower is improved; the improved tower body can effectively solve the problem of low desulfurization efficiency of an existing desulfurization tower adopting a single water spray or mist spray technique, and can satisfy high-standard sulfur dioxide discharge concentration. The mist spray and water spray desulfurization tower has the advantages of simple scheme, easiness in implementation and low reforming cost and is suitable for popularization and use or reforming of an existing spray tower.
Description
Technical field
The utility model relates to a kind of flue gas desulfurization device, is specially a kind of efficient spraying, spray desulfurizing tower.
Background technology
At present, the various Industrial Boilers of China, stove all carry out work by take coal as main fuel combustion, and this process can produce a large amount of waste gas that contains sulfur dioxide and flue dust, is directly discharged in atmosphere and can causes serious problem of environmental pollution, as acid rain, haze weather etc.The pay attention to day by day to environmental issue along with country and the common people, pollute the discharge standard of waste gas and the dynamics of execution thereof all more and more stricter, in numerous wet desulphurization devices, spray column system is occupied outstanding status, yet, face new emission standards for sulfur dioxide (GB13223-2011), by having large quantities of spray column desulfurizers, be difficult to meet the demands.
Existing desulfurizing tower adopts spray column mostly, due to factors such as spray droplet size are larger, often has the problems such as spray film contact is insufficient, the easy escape of flue gas.And as adopted spray art, because mist droplet particle size is very little, the flue gas of rising tends to suppress the whereabouts of droplet, affects gas liquid reaction effect, flue gas carries the up problems such as obstruction that also easily cause demister of a large amount of droplets.
Utility model content
Main purpose of the present utility model is for problems of the prior art, overcomes drawback and the deficiency of prior art, provides a kind of and can reach emission request and the high spraying spray desulfurizing tower for the treatment of effeciency, and the scheme that the utility model provides is as follows:
A spraying spray desulfurizing tower, the top of tower body is provided with demister, and exhanst gas outlet is positioned at the top of demister, it is characterized in that:
Tower body middle part is provided with spray level and spraying level, and described spray level is provided with the shower nozzle of a plurality of downward sprinklings, and the tower wall of spraying level side is distributed with the atomizer that a plurality of side direction are sprayed; The bottom of tower body is slurries district, is positioned under spray level and spraying level;
In described spraying level, be provided with the demist baffle plate that confluxes, described spraying level is arranged on the below of spray level, gas approach is arranged on the side of spraying level, the described demist baffle plate that confluxes is tubular, between baffle plate outside and spraying level tower wall, leave the annular space for flow of flue gas, the top of baffle plate tilts to tower wall gradually, until top is connected with the contact of tower wall, the actinal surface of the bottom actinal surface of baffle plate for tilting, be positioned on the liquid level in slurries district, the minimum point of described bottom actinal surface is positioned at the side near gas approach, and this point is not higher than the minimum point of gas approach.
In said structure, pending flue gas enters the rear demist baffle plate that confluxed in tower to be stopped, under the effect of blast, and flue gas flow direction slurries district, partial fume directly reacts with the absorption liquid in slurries district.Simultaneously under baffle effect, the space of smoke distribution between baffle plate and tower wall, and actinal surface design in baffle plate bottom is skewed, impel flue gas flow direction away from the space of import, contact with the atomized liquid of tower wall surrounding atomizer ejection, fully react, effectively improved the reaction efficiency of flue gas and atomized liquid.
Containing the flue gas of slurries droplet, walking around while confluxing demist baffle plate, most droplets, because inertia is by slurries, tower wall and baffle collected, have reduced the load of demister.Up flue gas continues to enter spray level, is sprayed level and purifies, and finally, after demister is removed water smoke, purifying smoke is discharged through outlet.
The described demist baffle plate that confluxes can adopt straight tube shape, or in a bending of bottom increase, by its bottom design, it is gradually expanded form, be of value to uniform between baffle plate and tower wall of flue gas, and increased the velocity component of flue gas towards tower wall direction, make flue gas increase walking around the corner flow velocity of baffle plate above being folded to simultaneously, improved the inertia that spray film drips, make more spray film drip Bei Tabihuo slurries district and collect.
As preferably, the top of the demist baffle plate that confluxes and the angle of tower wall are 30 °～85 °.
The cylindrical shell of the described demist baffle plate that confluxes can be constituted by one section of above taper type or pillar buoy, and described taper type or pillar buoy can be the frustum of a cone, cylindrical drum or the polygonal frustum of a pyramid, prism cylinder etc.
Further, by controlling flue gas, enter tower speed and the dimensional parameters in conflux demist baffle plate and Ta Bi, slurries district is designed, in described spraying level, the air velocity of flue gas corner between demist baffle plate below and slurries district that makes to conflux is greater than the conflux descending mean flow rate of flue gas and the up average speed of the interior flue gas of demist baffle plate cylinder that confluxes between demist baffle plate and tower wall, the cross section that appearance flue gas in corner passes through be less than the cross section confluxing between demist baffle plate and tower wall and the demist baffle plate cylinder that confluxes in cross-sectional area.To improve the inertia force of flue gas, more spray film is dripped by slurries and trap.
A spraying spray desulfurizing tower, the top of tower body is provided with demister, and exhanst gas outlet is positioned at the top of demister, it is characterized in that:
Tower body middle part is provided with spray level and spraying level, and described spray level is provided with the shower nozzle of a plurality of downward sprinklings, and the tower wall of spraying level side is distributed with the atomizer that a plurality of side direction are sprayed; The bottom of tower body is slurries district, is positioned under spray level and spraying level;
In described spraying level, be provided with the demist baffle plate that confluxes, described spraying level is positioned at the top of spray level, gas approach is arranged on the side tower wall of spray level below, the described demist baffle plate that confluxes is for conical, pyramid or butterfly plate, confluxes and between demist baffle plate side and tower wall, leaves the space that confession flue gas passes through.
In said structure, when described spraying level is positioned at spray level top, flue gas enters in tower and first by spray level drop, is purified, through flue gas raising speed under the effect of the demist baffle plate that confluxes of spray level, and be distributed in to conflux and react with the droplet of atomizer ejection on tower wall between demist baffle plate and tower wall.Meanwhile, the part droplet carrying in up flue gas after the spray level demist baffle plate that confluxed is removed.
As preferably, described demister can be by adjusting the versions that method formation middle part resistance is little, surrounding resistance is large such as spacing, progression or taking to increase rectification baffle plate between demister and spraying level, the employing center mode such as give vent to anger, be beneficial to spraying level flue gas is uniformly distributed in demister, the load of balance demister, specifically comprises following technical scheme:
Described demister at least meets from all sides to intermediate blade spacing and increases progressively gradually or a kind of version of progression in successively decreasing.
Between described demister and spraying level, be provided with rectification baffle plate.Preferably, described rectification baffle plate is multiple damper, and straight plate or the arc impeller by some rows with certain angle of inclination form, Zi Zhoucezhi center, and impeller spacing and/or impeller horizontal tilt angle increase progressively.
Tower body top board is inclined upwardly from all side direction center, and described exhanst gas outlet is positioned at the center of tower body top board.
In several versions of above-mentioned spraying spray desulfurizing tower, by the setting to spray nozzle or atomizer model and water inlet pipe flow, pressure and other parameters, the drop average grain diameter of described spray level is preferably controlled at 1mm～2mm left and right, is generally not less than 1mm; The size droplet diameter average control of described spraying level, in 0.1～0.5mm left and right, is generally not more than 1mm.
Described spray level can be connected with slurries district respectively by being provided with the pipeline of circulating pump with spraying level, improves the service efficiency of absorption liquid.If tower has slurry pool outward, circulating pump also can slurry pool water intaking from tower.
The beneficial effects of the utility model:
The utility model scheme by flexible utilization gas baffle, effectively combines spray process and spray art, has significantly improved desulfuration efficiency, the in the situation that larger and former SO 2 from fume concentration being higher in treating capacity, also can meet emission request.And simple and easy, the easy enforcement of the utility model Structure of Flue Gas Desulfuration Absorbing, cost are low, be especially applicable to the transformation project of traditional spray desulfurizing tower.
Accompanying drawing explanation
Fig. 1 is the structural representation of spraying spray desulfurizing tower embodiment mono-;
Fig. 2 is the structural representation of spraying spray desulfurizing tower embodiment bis-;
Fig. 3 is the structural representation of spraying spray desulfurizing tower embodiment tri-.
In upper figure, 1, slurries district, 2, gas approach, 3, spray level, 4, demister, 5, exhanst gas outlet, 6, spraying level, 6-1, the demist baffle plate that confluxes, 7-circulating pump.
The specific embodiment
In order to illustrate the technical solution of the utility model, technical purpose and technique effect, below in conjunction with drawings and the specific embodiments, the utility model is described further.
Embodiment mono-:
A kind of spraying spray desulfurizing tower as shown in Figure 1, its tower body is followed successively by demister 4, spray level 3, spraying level 6 and 1 four, slurries district part from top to bottom.Gas approach 1 is arranged on the side of spraying level, and exhanst gas outlet 5 is arranged on the top of demister 4, the side at tower body top.
The described level 6 of spraying is positioned at the top in slurries district 1, comprises and is arranged on many groups high-efficiency atomizing nozzle of tower wall surrounding and is positioned at the middle demist baffle plate 6-1 that confluxes of spraying level.The described demist baffle plate 6-1 that confluxes is tubular, and upper actinal surface is communicated with spray level 3 spaces, and lower actinal surface is positioned on slurries district 1.The cylindrical shell of demist baffle plate 6-1 of confluxing is divided into two sections, epimere is a rounding taper type cylinder, the angle operated by rotary motion of barrel and tower wall is between 30 °～85 °, hypomere is a cylindrical tube, the lower actinal surface that is positioned at cylindrical tube bottom is inclination actinal surface, one end that described inclination actinal surface approaches gas approach 2 is most minimum point, then along the direction away from gas approach 2, raises gradually.
Described confluxing left the annular space for flow of flue gas between demist baffle plate 6-1 and spraying level 6 tower walls, and top and the Ta Bi of epimere inversed taper platform shape cylinder are tightly connected, and avoid flue gas from this escape.Described atomizer is distributed on Ta Bishang, and side direction sprays to flue gas, and is connected with slurries district 1 by pipeline, and pipeline is provided with circulating pump 7.
Described spray level 3 is provided with many group shower nozzles and sprays downwards above spraying level 6, and described shower nozzle is also connected with slurries district 1 by being provided with the pipeline of circulating pump.
Desulfurization slurry is delivered to respectively spray level 3 and spraying level 6 places by circulating pump 7.Flue gas enters tower body by inlet flue duct, is distributed in around baffle plate under the stopping of demist baffle plate 6-1 of confluxing.In enforcement, control the import inflow velocity of flue gas, make flue gas be controlled at 5～15m/s at conflux descending mean flow rate between demist baffle plate 6-1 and tower wall and the up mean flow rate in the demist baffle plate 6-1 cylinder that confluxing, and the flow control of flue gas corner below the demist baffle plate wooden partition that confluxes and between slurries district 1 is at 10～35m/s.
Flue gas is in the flow process of spraying level 6, droplet after gas liquid reaction is by slurries, tower wall and baffle collected, continue the inner barrel of up flue gas by the demist baffle plate 6-1 that confluxes and enter spray level 3, by spray level 3, continued to purify, finally, after demister is removed water smoke, by exhanst gas outlet 5, discharged.
The treatment effeciency of existing spray type desulphurization tower is between 90%～96%, and the treatment effeciency of the utility model desulfurizing tower reaches more than 99%, compares with existing equipment, and clean-up effect progress is remarkable.
Embodiment bis-:
On the basis of example one structure, the bottom of the demist baffle plate 6-1 hypomere that confluxes is added to a flaring portion, lower actinal surface becomes the bottom actinal surface of this flaring portion, and it is obliquely installed method with example one.
By designing the geometric parameter of each parts, conflux described in control between demist baffle plate 6-1Yu slurries district 1 before flue gas turns round and the air velocity of flue gas corner is greater than the up average speed of flue gas in the descending mean flow rate of flue gas and the demist baffle plate cylinder that confluxes that confluxes between demist baffle plate 6-1 and tower wall.Flue gas is controlled at 5～10m/s at conflux descending mean flow rate between demist baffle plate 6-1 and tower wall and the up mean flow rate in the demist baffle plate 6-1 cylinder that confluxing, below the demist baffle plate wooden partition that confluxes and between slurries district flue gas turn round before and corner flow control at 10～15m/s, preferably, can be controlled in 15m/s left and right.
Embodiment tri-:
A kind of spraying spray desulfurizing tower as shown in Figure 3, its tower body is provided with demister 4, spraying level 6, spray level 3 and 1 four, slurries district part from top to bottom successively.Gas approach 2 is arranged on the side tower wall between spray level 3 and slurries district 1, and exhanst gas outlet 5 is arranged on the center of demister 4 top tower body roofs, and described tower body roof is inclined upwardly from all side direction center, and the outlet space of flue gas is reduced.
Described spray level 3 is provided with many group shower nozzles and sprays downwards above slurries district 1, and described shower nozzle is connected with slurries district 1 by being provided with the pipeline of circulating pump.
Described spraying level 6 is positioned at the top that sprays level 3, comprises and is arranged on many groups atomizer of tower wall surrounding and is positioned at the middle demist baffle plate 6-1 that confluxes of spraying level.The described demist baffle plate 6-1 that confluxes is for conical, and top upward.Described atomizer is distributed on the tower wall of the demist baffle plate 6-1 week side of confluxing, and side direction sprays to flue gas, and is connected with slurries district 1 by pipeline, and pipeline is provided with circulating pump 7.
Desulfurization slurry is delivered to respectively spray level 3 and spraying level 6 places by circulating pump 7.Flue gas enters tower body by import, and the desulfurization slurry drop spraying downwards with spray level 3 reacts.Continue up flue gas and enter spraying level, under the barrier effect of demist baffle plate is confluxed in taper, the part droplet carrying in flue gas is captured, and smoke distribution is being confluxed between demist baffle plate 6-1 and tower wall simultaneously, and the droplet that continues to spray with atomizer reacts.Final flue gas is discharged by tower top outlet after demister 4 is removed water smoke.
In the present embodiment, for the load of balance demister 4, described demister 4 can form the version that surrounding resistance is large, middle part resistance is little by adjusting the methods such as spacing, progression.The employing deflection plate demister of take is example, and from the side to center, it can arrange, and blade pitgh increases gradually or progression successively decreases or the form of the two combination, and demister resistance is successively decreased to centre from surrounding.Or, described demister 4 adopts conventional demister, between demister 4 and spraying level 6, rectification baffle plate (not shown) is set, impel flue gas even distribution before demister 4, for example, employing has the straight plate at certain angle of inclination or the multiple damper that arc impeller forms by some rows, by adjusting spacing and/or the impeller horizontal tilt angle of each impeller, make it from all side direction center, be the variation tendency increasing progressively, baffle plate is progressively successively decreased from all side direction center to the resistance of flue gas, impel after the flue gas rising that mainly concentrates on tower wall place in spraying level 6, to rectification baffle plate middle part, flow gradually, average demister 4 flue gas load everywhere.
In above-mentioned three embodiment, the size droplet diameter of described spray level 3 can be controlled in 1mm～2mm left and right, and the atomizing particle size of described spraying level is further controlled at below 0.5mm.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand, the utility model is not restricted to the described embodiments, that in above-described embodiment and description, describes just illustrates principle of the present utility model, is not departing under the prerequisite of the utility model spirit and scope, and the utility model also has various changes and modifications.The claimed scope of the utility model is defined by appending claims, description and equivalent thereof.
Claims (11)
- Spraying a spray desulfurizing tower, the top of tower body is provided with demister, exhanst gas outlet is positioned at the top of demister, it is characterized in that:Tower body middle part is provided with spray level and spraying level, and described spray level is provided with the shower nozzle of a plurality of downward sprinklings, and the tower wall of spraying level side is distributed with the atomizer that a plurality of side direction are sprayed; The bottom of tower body is slurries district, is positioned under spray level and spraying level;In described spraying level, be provided with the demist baffle plate that confluxes, described spraying level is arranged on the below of spray level, gas approach is arranged on the side of spraying level, the described demist baffle plate that confluxes is tubular, between baffle plate outside and spraying level tower wall, leave the annular space for flow of flue gas, the top of baffle plate tilts to tower wall gradually, until top is connected with the contact of tower wall, the actinal surface of the bottom actinal surface of baffle plate for tilting, be positioned on the liquid level in slurries district, the minimum point of described bottom actinal surface is positioned at the side near gas approach, and this point is not higher than the minimum point of gas approach.
- 2. a kind of spraying spray desulfurizing tower according to claim 1, is characterized in that, described in the conflux bottom of demist baffle plate be straight tube shape or gradually expanded form.
- 3. a kind of spraying spray desulfurizing tower according to claim 1, is characterized in that, the top of the demist baffle plate that confluxes and the angle of tower wall are 30 °～85 °.
- 4. according to a kind of spraying spray desulfurizing tower described in arbitrary claim in claim 1-3, it is characterized in that, described in the conflux cylindrical shell of demist baffle plate by one section of above taper type or pillar buoy, formed.
- 5. according to a kind of spraying spray desulfurizing tower described in arbitrary claim in claim 1-3, it is characterized in that, described spray level, spraying level are connected with slurries district by being provided with the pipeline of circulating pump respectively.
- Spraying a spray desulfurizing tower, the top of tower body is provided with demister, exhanst gas outlet is positioned at the top of demister, it is characterized in that:Tower body middle part is provided with spray level and spraying level, and described spray level is provided with the shower nozzle of a plurality of downward sprinklings, and the tower wall of spraying level side is distributed with the atomizer that a plurality of side direction are sprayed; The bottom of tower body is slurries district, is positioned under spray level and spraying level;In described spraying level, be provided with the demist baffle plate that confluxes, described spraying level is positioned at the top of spray level, gas approach is arranged on the side tower wall of spray level below, the described demist baffle plate that confluxes is for conical, pyramid or butterfly plate, confluxes and between demist baffle plate side and tower wall, leaves the space that confession flue gas passes through.
- 7. a kind of spraying spray desulfurizing tower according to claim 6, is characterized in that, described demister at least meets from all sides to intermediate blade spacing and increases progressively gradually or a kind of version of progression in successively decreasing.
- 8. a kind of spraying spray desulfurizing tower according to claim 6, is characterized in that, between described demister and spraying level, is provided with rectification baffle plate.
- 9. a kind of spraying spray desulfurizing tower according to claim 8, it is characterized in that, described rectification baffle plate is multiple damper, and straight plate or the arc impeller by some rows with certain angle of inclination form, Zi Zhoucezhi center, impeller spacing and/or impeller horizontal tilt angle increase progressively.
- 10. according to a kind of spraying spray desulfurizing tower described in claim 7,8 or 9, it is characterized in that, tower body top board is inclined upwardly from all side direction center, and described exhanst gas outlet is positioned at the center of tower body top board.
- 11. according to a kind of spraying spray desulfurizing tower described in arbitrary claim in claim 6-9, it is characterized in that, described spray level, spraying level are connected with slurries district by being provided with the pipeline of circulating pump respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172782.2U CN203853014U (en) | 2014-04-10 | 2014-04-10 | Mist spray and water spray desulfurization tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172782.2U CN203853014U (en) | 2014-04-10 | 2014-04-10 | Mist spray and water spray desulfurization tower |
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| Publication Number | Publication Date |
|---|---|
| CN203853014U true CN203853014U (en) | 2014-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420172782.2U Withdrawn - After Issue CN203853014U (en) | 2014-04-10 | 2014-04-10 | Mist spray and water spray desulfurization tower |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908888A (en) * | 2014-04-10 | 2014-07-09 | 江苏揽山环境科技有限公司 | Atomizing and spraying desulfurization tower |
| CN104923062A (en) * | 2015-05-12 | 2015-09-23 | 江苏揽山环境科技有限公司 | Exhaust gas purification tower |
| CN104941437A (en) * | 2015-07-01 | 2015-09-30 | 江苏揽山环境科技有限公司 | Spraying desulfurizing tower with front-mounted atomizing section |
| CN108704417A (en) * | 2018-06-19 | 2018-10-26 | 南京汇龙橡胶制品有限公司 | Device for absorbing tail gas in a kind of rubber building-up process |
| CN108905531A (en) * | 2018-07-31 | 2018-11-30 | 太仓市宇格明叶环保设备有限公司 | A kind of adverse current opposite-flushing type scrubbing tower and its working method |
-
2014
- 2014-04-10 CN CN201420172782.2U patent/CN203853014U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908888A (en) * | 2014-04-10 | 2014-07-09 | 江苏揽山环境科技有限公司 | Atomizing and spraying desulfurization tower |
| CN103908888B (en) * | 2014-04-10 | 2016-02-10 | 江苏揽山环境科技股份有限公司 | Spraying spray desulfurizing tower |
| CN104923062A (en) * | 2015-05-12 | 2015-09-23 | 江苏揽山环境科技有限公司 | Exhaust gas purification tower |
| CN104941437A (en) * | 2015-07-01 | 2015-09-30 | 江苏揽山环境科技有限公司 | Spraying desulfurizing tower with front-mounted atomizing section |
| CN108704417A (en) * | 2018-06-19 | 2018-10-26 | 南京汇龙橡胶制品有限公司 | Device for absorbing tail gas in a kind of rubber building-up process |
| CN108905531A (en) * | 2018-07-31 | 2018-11-30 | 太仓市宇格明叶环保设备有限公司 | A kind of adverse current opposite-flushing type scrubbing tower and its working method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160210 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |