CN205760583U - A kind of swirl-flow devices for flue gas desulfurization - Google Patents
A kind of swirl-flow devices for flue gas desulfurization Download PDFInfo
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- CN205760583U CN205760583U CN201620412275.0U CN201620412275U CN205760583U CN 205760583 U CN205760583 U CN 205760583U CN 201620412275 U CN201620412275 U CN 201620412275U CN 205760583 U CN205760583 U CN 205760583U
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Abstract
The utility model discloses a kind of swirl-flow devices for flue gas desulfurization, including tower body, the sidewall of described tower body is provided with smoke inlet, top is provided with exhanst gas outlet, in described tower body and be positioned at smoke inlet and be provided above a dividing plate being horizontally arranged on tower body inwall and being connected with tower body inner wall sealing, several installing holes are set on described dividing plate, one eddy flow of corresponding installation in each installing hole；In described tower body and be positioned at dividing plate and be provided above serosity spray equipment.This utility model, by the eddy flow sub-portfolio of some standard series, has big flux characteristic, eddy flow flue gas desulfurization strengthening effect.This utility model is applicable to big exhaust gas volumn wet flue gas desulfurizer, and desulfuration efficiency can rise the eddy flow flue gas desulfurization strengthening plate of invigoration effect.
Description
Technical field
This utility model relates to a kind of flue gas desulfurization device, is specifically related to a kind of swirl-flow devices for flue gas desulfurization.
Background technology
In recent years, along with the attention to environmental conservation, the popularity rate of wet process of FGD is more and more higher, and scale constantly expands, and spraying type absorption technique occupies absolute leading position in wet desulphurization.Such as, the Chinese invention patent application document of Publication No. CN105435618A discloses a kind of desulfurizing tower, with lime stone slurry as desulfurizing agent, including stock tank, serosity pump and confession oxidation wind assembly, described stock tank includes that district put by airduct, described serosity pump connects with described stock tank, and for slurry in described stock tank, described confession oxidation wind assembly includes centrifugal blower, multiple oxidation air and multiple agitator, described centrifugal blower is connected with multiple described oxidation air, multiple described oxidation air are located at described airduct and are put district, oxidation air described in multiple described agitator one_to_one corresponding is arranged.
The spray column of this technique is designing and in operation in order to avoid tower wall is by spray liquid ablation destruction, each nozzle all can be suitably away from tower circumference, cause the wall effect of flue gas so that cannot be fully contacted with spray liquid by the flue gas of tower body inner rim, constrain the raising of bulk devulcanization efficiency.
In order to eliminate this wall effect, conventional design solves frequently with the way at Ta Neijiabu compression ring and/or increase pallet, such as, the Chinese invention patent application document of Publication No. CN 102764582A discloses a kind of high-quality wet process of FGD spray absorber, it includes spray column cylinder, it is provided with gas approach passage and exhanst gas outlet passage, has been horizontally disposed with porous sieve plate, flue gas redistribution ring, serosity spray equipment, demister and rotational flow plate device the most from bottom to top.The inside edge undulate of flue gas redistribution ring or zigzag, rotational flow plate device is combined by multiple independent whirlwind board separator are uniform.But its final effect has much room for improvement, the cost of pallet still needs to be further improved with operating flexibility etc..Use the combined column of spiral board and spray also to obtain preferable effect when processing exhaust gas volumn and being less, but traditional single spiral board, on the scale-up problem under atm number, difficulty is relatively big, have impact on its application under big exhaust gas volumn.
Utility model content
For solving the problem existing for prior art, this utility model provides a kind of swirl-flow devices for flue gas desulfurization, by the eddy flow sub-portfolio of some standard series, has big flux characteristic, eddy flow flue gas desulfurization strengthening effect.
A kind of eddy flow flue gas desulfurization intensifying device, including tower body, the sidewall of described tower body is provided with smoke inlet, top is provided with exhanst gas outlet, in described tower body and be positioned at smoke inlet and be provided above a dividing plate being horizontally arranged on tower body inwall and being connected with tower body inner wall sealing, several installing holes are set on described dividing plate, one eddy flow of corresponding installation in each installing hole；In described tower body and be positioned at dividing plate and be provided above serosity spray equipment；
Described eddy flow attached bag includes hollow cylinder and the spiral board being arranged in hollow cylinder, and described hollow cylinder is fixed with the edge seal of corresponding installing hole；Described spiral board includes center blind plate, outside encirclement plate and is fixedly connected on center blind plate and the outside some swirl vanes surrounded on plate；Angle between described swirl vane and horizontal plane is 30～60 °；Described spiral board is positioned at the bottom of hollow cylinder；Described hollow cylinder is positioned at 1.5～3 times of a length of hollow cylinder diameter above spiral board.
Dividing plate will be divided into upper and lower two ends in tower body, air inlet below dividing plate, some eddy flows in parallel on dividing plate, if the flue gas to be desulfurization of big flow is divided into the carried interest flue gas compared with low discharge automatically, make it respectively uniformly through standard eddy flow of the unified specification being installed in parallel, desulfurization fume all sequentially passes through liquid curtain, eddy flow that this equipment is formed, the most again by the liquid curtain of spraying and liquid distributing device, it is achieved efficient Dry FGD；Serosity spray equipment is positioned at above eddy flow, and its spray direction carries out the gas-liquid mass transfer of secondary desulfuration against flue gas flow direction, the doctor solution utilizing spraying layer to provide.
Preferably, described dividing plate is additionally provided with the descending liquid mouth between adjacent eddy flow.A part of serosity above dividing plate by this descending liquid mouth at dividing plate liquid formed below curtain, it is achieved the first time gas-liquid mass transfer of flue gas and serosity and heat transfer.Further preferably, perforated area is tower body interfacial agents the 1～20% of described descending liquid mouth, as the decline passway of part spray liquid.
The installation quantity of described eddy flow can calculate according to following company:
Number=process the permission process exhaust gas volumn that whole exhaust gas volumn/single eddy flow is sub
Permission according to single eddy flow processes tolerance, calculates and select the sub-number of eddy flow required when processing whole tolerance and eddy flow subfamily.
Eddy flow can use eddy flow substandard part, the process tolerance of each eddy flow to be preferred less than 1500mm with the overall dimensions of eddy flow.
Preferably, described eddy flow attached bag includes hollow cylinder and the spiral board being arranged in hollow cylinder, and described hollow cylinder is fixed with the edge seal of corresponding installing hole.
Further preferably, described spiral board includes center blind plate, outside encirclement plate and is fixedly connected on center blind plate and the outside some swirl vanes surrounded on plate.
Further preferably, the angle between described swirl vane and horizontal plane is 30～60 °.
Further preferably, described spiral board is positioned at the bottom of hollow cylinder.Further preferably, described hollow cylinder is positioned at 1.5～3 times of a length of hollow cylinder diameter above spiral board.
All materials selected by eddy flow are entirely capable of adapting to 20～130 DEG C of temperature, and pH value is the various gas phase hybird environments of 2.5～11.5, and by simple combined amplifier, it processes tolerance and can reach 10,000,000m3/h。
Electedly, eddy flow is removably installed on the installing hole of correspondence.I.e. using the mode of removably connecting to be attached between hollow cylinder and the installing hole of eddy flow, such as, can arrange journal stirrup outside hollow cylinder, be articulated on the installing hole of correspondence by this journal stirrup, cylinder and installing hole contact position can use sealing ring to seal.
Preferably, the spray direction flusher along flue gas flow direction in described tower body and it is provided with between smoke inlet and dividing plate.
It is further preferred that described following current flusher includes shower and the some nozzles being located on shower.The injection direction of nozzle is identical with flue gas flow direction.In the adverse circumstances that serosity droplet content is high, interval enables this following current flusher.
This utility model is applicable to big exhaust gas volumn wet flue gas desulfurizer, and desulfuration efficiency can rise the eddy flow flue gas desulfurization strengthening plate of invigoration effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the installation top view of dividing plate and eddy flow.
Fig. 3 is the structural representation of spiral board.
Fig. 4 is the top view of spiral board.
Shown in figure, reference is as follows:
1-tower body 2-flusher 3-eddy flow
31-hollow cylinder 32-spiral board 321-center blind plate
322-is outside surrounds plate 323-swirl vane 4-dividing plate
41-descending liquid mouth 5-serosity spray equipment 6-smoke inlet.
Detailed description of the invention
As shown in Figure 1 to 4, a kind of swirl-flow devices for flue gas desulfurization, some eddy flows 3 of including tower body 1, being installed in parallel in tower body 1 and in being placed in tower body and be positioned at the serosity spray equipment 5 above eddy flow, serosity spray equipment uses conventional spray column spray equipment.
Smoke inlet 6 is offered on the sidewall of tower body 1, exhanst gas outlet is positioned at tower body top, in tower body and be positioned at smoke inlet upper horizontal one dividing plate 4 is installed, dividing plate 4 is tightly connected at tower body inwall, tower body is divided into two sections by dividing plate, uniformly offering some installing holes on dividing plate, in each installing hole, one eddy flow 3 of corresponding installation, offers descending liquid mouth 41 between adjacent installing hole.
Eddy flow 3 be arranged on dividing plate after top view as in figure 2 it is shown, eddy flow is uniformly distributed on dividing plate and is covered with whole dividing plate, eddy flow 3 can directly use commercial standard component, the full-size of standard component be less than 1500mm.
In present embodiment, the structural representation of eddy flow is as shown in Figure 3 and Figure 4, including hollow cylinder 31 and the spiral board 32 being placed in hollow cylinder, it is installed on the corresponding installing hole of dividing plate by hollow cylinder, hollow cylinder is fixed on the installing hole of dividing plate by the anticorrosion hangers on outer wall, seal between hollow cylinder outer wall and the edge of installing hole, spiral board 32 includes center blind plate 321, outside encirclement plate 322 and swirl vane 323, swirl vane is in center blind plate and the outside annular space surrounded between plate, inclination in a certain angle between swirl vane and horizontal plane.
In tower body and before being positioned at smoke inlet and dividing plate, the flusher 2 that following current sprays is set, flusher 2 is made up of shower and the some nozzles being uniformly located on shower, the injection direction of nozzle is towards the windward side of spiral board, for rinsing eddy flow in the adverse circumstances that serosity droplet content is high.
Working method of the present utility model is as follows:
As it is shown in figure 1, former flue gas A first passes through eddy flow collects the liquid curtain D that get off and that descending liquid mouth gets off desulfurization slurry is formed, it is achieved the first time heat and mass transport between flue gas A and desulfurization slurry, this process smokeless dead angle exists.If then flue gas A is divided into carried interest flue gas B, major part flue gas B forces uniformly through spiral board, flue gas B contacts with the spray liquid E under spraying layer in spiral board, carry out being atomized by the principle of spiral board, coalescence, high speed rotating and centrifugation, serosity is thrown to eddy flow auxiliary cylinder wall and forms liquid curtain D, contacts with spray liquid E if leaving the continuation rising of the carried interest dampness C after eddy flow.Part spray liquid E is after descending liquid mouth 4 contacts with a small amount of flue gas B and liquid curtain D converges return tower reactor.The foulant that the water droplet that the following current flushing that gap is run produces and spiral board strip down the most also is all returned to tower reactor.
Application examples 1
Flue-gas temperature is 135 ± 5 DEG C, flue gas flow 410,000 ± 5,000m3/ h, sulfur dioxide initial concentration is 2300 ± 300mg/Nm3, after eddy flow flue gas desulfurization strengthening plate, desulfurization slurry rises to 96.0% from the 91.6% of strengthening.
Application examples 2
Flue-gas temperature is 150 ± 5 DEG C, flue gas flow about Isosorbide-5-Nitrae 00,000m3/ h, sulfur dioxide initial concentration is 2000mg/Nm3, it is adjusted to 35000mg/Nm3, after installing eddy flow flue gas desulfurization strengthening plate additional, in the case of Sprayer Circulation amount is constant, outlet sulfur dioxide emissioning concentration is from 200 ± 50mg/Nm3, become 180 ± 30mg/Nm3。
The foregoing is only this utility model patent is embodied as case, but the technical characteristic of this utility model patent is not limited thereto, any those skilled in the relevant art are in field of the present utility model, and change or the modification made all are contained among the scope of the claims of the present utility model.
Claims (4)
1. the swirl-flow devices for flue gas desulfurization, including tower body, the sidewall of described tower body is provided with smoke inlet, top is provided with exhanst gas outlet, it is characterized in that, in described tower body and be positioned at smoke inlet and be provided above a dividing plate being horizontally arranged on tower body inwall and being connected with tower body inner wall sealing, several installing holes are set on described dividing plate, one eddy flow of corresponding installation in each installing hole；In described tower body and be positioned at dividing plate and be provided above serosity spray equipment；
Described eddy flow attached bag includes hollow cylinder and the spiral board being arranged in hollow cylinder, and described hollow cylinder is fixed with the edge seal of corresponding installing hole；Described spiral board includes center blind plate, outside encirclement plate and is fixedly connected on center blind plate and the outside some swirl vanes surrounded on plate；Angle between described swirl vane and horizontal plane is 30～60 °；Described spiral board is positioned at the bottom of hollow cylinder；Described hollow cylinder is positioned at 1.5～3 times of a length of hollow cylinder diameter above spiral board.
The most according to claim 1 for the swirl-flow devices of flue gas desulfurization, it is characterised in that be additionally provided with the descending liquid mouth between adjacent eddy flow on described dividing plate.
The most according to claim 1 for the swirl-flow devices of flue gas desulfurization, it is characterised in that eddy flow is removably installed on the installing hole of correspondence.
The most according to claim 1 for the swirl-flow devices of flue gas desulfurization, it is characterised in that in described tower body and be provided with the spray direction flusher along flue gas flow direction between smoke inlet and dividing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412275.0U CN205760583U (en) | 2016-05-06 | 2016-05-06 | A kind of swirl-flow devices for flue gas desulfurization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620412275.0U CN205760583U (en) | 2016-05-06 | 2016-05-06 | A kind of swirl-flow devices for flue gas desulfurization |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731523A (en) * | 2017-01-24 | 2017-05-31 | 广州舒创有限公司 | A kind of Pneumatic emulsifying processing unit and method |
| CN107469579A (en) * | 2017-09-27 | 2017-12-15 | 佛山市深研信息技术有限公司 | A kind of novel environment friendly FGD by spraying mist equipment |
| CN111589288A (en) * | 2020-07-10 | 2020-08-28 | 阳春新钢铁有限责任公司 | Desulfurization, denitrification and white removal device for ultralow emission of flue gas of sintering machine and process thereof |
-
2016
- 2016-05-06 CN CN201620412275.0U patent/CN205760583U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731523A (en) * | 2017-01-24 | 2017-05-31 | 广州舒创有限公司 | A kind of Pneumatic emulsifying processing unit and method |
| CN106731523B (en) * | 2017-01-24 | 2023-02-03 | 广州舒创有限公司 | Pneumatic emulsification treatment device and method |
| CN107469579A (en) * | 2017-09-27 | 2017-12-15 | 佛山市深研信息技术有限公司 | A kind of novel environment friendly FGD by spraying mist equipment |
| CN111589288A (en) * | 2020-07-10 | 2020-08-28 | 阳春新钢铁有限责任公司 | Desulfurization, denitrification and white removal device for ultralow emission of flue gas of sintering machine and process thereof |
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