CN202410483U - Spraying and rotational flow combined absorption column - Google Patents
Spraying and rotational flow combined absorption column Download PDFInfo
- Publication number
- CN202410483U CN202410483U CN2011205228463U CN201120522846U CN202410483U CN 202410483 U CN202410483 U CN 202410483U CN 2011205228463 U CN2011205228463 U CN 2011205228463U CN 201120522846 U CN201120522846 U CN 201120522846U CN 202410483 U CN202410483 U CN 202410483U
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- absorption column
- rotational flow
- spraying
- layer
- absorption
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Abstract
The utility model discloses a spraying and rotational flow combined absorption column and belongs to the field of resources and environment protection. The spraying and rotational flow combined absorption column comprises an absorption column body, wherein a mist removing layer, spraying layers and a column kettle are sequentially arranged in the absorption column body from top to bottom, a smoke inlet and a smoke outlet are respectively arranged in the middle and at the top of the absorption column body, and a layer of rotational flow board is arranged at the position 1.5-2m above the smoke inlet below the spraying layers. The absorption column is used for smoke wet desulphurization, the rotational flow board requires no separately-arranged slurry inlet pipe, slurry sprayed by the upper spraying layer is distributed on the rotational flow board, and by means of the characteristic of penetrating type absorption of the rotational flow board, the desulphurization efficiency of the absorption column is larger than that of the spraying absorption mode with the same quantity of slurry. The three spraying layers are combined with the rotational flow layer, system resistance of the absorption column is 100-200 Pa larger than that of the absorption column with four spraying layers, liquid gas of the absorption column is 1/4 smaller than that of the absorption column with four spraying layers, and the desulphurization efficiency of the absorption column is 5-10% higher than that of the absorption column with four spraying layers.
Description
Technical field
The utility model relates to environment and protection of resources field, is specifically related to a kind of rotational flow and spray combined absorbing tower.
Background technology
What the wet desulphurization great majority adopted is spray absorber; Slurries are sent into the spraying layer shower nozzle through circulating pump; Slurries through shower nozzle be atomized into behind the tiny slurries drop to around even cloth liquid, and with the abundant haptoreaction of the flue gas that moves upward, slurries are in spraying layer spray process; Can directly clash into the tower wall along absorbing near the slurries of Tata wall, and along the landing of tower wall.According to the needs adjustment sprayed slurry amount of desulfuration efficiency and entrance concentration, the sprayed slurry amount directly influences the energy consumption and the efficient of desulphurization system.
The rotating stream tray scrubber dust-removing and desulfurizing integrated device is called for short rotating stream tray scrubber, is a kind of ejection-type column plate washer, and critical component is a rotating stream tray.The column plate blade produces rotation and centrifugal motion like fixing air vane when air communication is crossed blade, absorption liquid is evenly distributed to each blade through middle blind plate; Form thin liquid layer; Form rotation and centrifugal effect with rotation air-flow upwards, be sprayed into fine drop, get rid of Xiang Tabi; Drop gravitate afflux is to collecting tank, and flows to the blind plate district of next column plate through downspout.Pending air-flow with certain blast, wind speed advances from the bottom of tower, and top goes out.Absorption liquid advances from the top of tower, and the bottom goes out.Air-flow and absorption liquid are done relative motion in tower, and form the very moisture film of high surface area at the structure position of rotating stream tray, thereby have improved absorption greatly.The absorption liquid of each layer is fallen into the feeder at edge through the eddy flow centrifugal action, gets into one deck column plate down, the absorption of following one deck through mozzle again.
Application number is that 200920010971.9 utility model patent discloses a kind of eddy flow plate spray column; It is characterized in that adopting a plurality of little eddy flow plates to form the maelstrom plate; And the pulp-inlet pipe road is set at each eddy flow flaggy; Eddy flow plate area of passage is little, resistance is big, and has also increased the pulp-inlet pipe road at the eddy flow flaggy, has increased system energy consumption.
Notification number is that the Chinese invention patent of CN101342454B discloses a kind of rotational flow and spray combined desulfurizing device; Comprise the absorption tower; Be provided with tower still, washing components, demist plate in the absorption tower from bottom to up successively, washing components is made up of spraying layer that plurality of nozzles is installed on the pipeline and eddy flow flaggy, and spraying layer is positioned at eddy flow flaggy top; Nozzle is mounted to the absorption tower vertical center line angled; Mind-set tower wall angle increases gradually from the absorption tower, and angular range is 0-45 °, and the eddy flow flaggy is provided with the pulp-inlet pipe road.What this device adopted is that the desulfurization that the eddy flow plate combines with spraying layer absorbs composition; And the pulp-inlet pipe road is arranged simultaneously at the eddy flow flaggy; Though its slurries internal circulating load sprays tower more entirely and decreases, the arrangement that multi-layer rotational flow plate and eddy flow flaggy advance slurries simultaneously makes resistance also increase to some extent.
The utility model content
The utility model discloses a kind of rotational flow and spray combined absorbing tower, some spraying layers and one deck eddy flow flaggy combination desulfurization reduce the desulfurization energy consumption when improving desulfuration efficiency.
A kind of rotational flow and spray combined absorbing tower; Comprise the absorption tower; Be provided with demist layer, spraying layer and tower still in the said absorption tower from top to bottom successively; Smoke inlet and exhanst gas outlet are located at absorption tower middle part and top respectively, said spraying layer below and be positioned at 1.5-2m place, smoke inlet top and be provided with one deck eddy flow plate.
Said eddy flow plate comprises the blind plate of central area and along the blind plate periphery angle of inclination is set is 35 °~55 ° blade; 1/4~1/3 of the whole eddy flow board diameter of the diameter occupies of said blind plate; The slurries that the slurries that distributed on the eddy flow plate get off for its top spraying layer sprays; Slurries are evenly distributed on and form the high liquid layer of about 5cm on the eddy flow plate, and flue gas passes liquid layer between eddy flow plate blade from bottom to up, forms the liquid-gas ratio of approximates infinity herein; Flue gas passes the eddy flow plate blade of inclination and causes the rotation fluidised form, and the centrifugal rotation of entrained slurries is got rid of to absorbing the Tata wall, and the slurries on the tower wall flow to absorption Tata still by the liquid-leaking nozzle of eddy flow plate periphery again.
Described eddy flow plate is fixed on the inwall of absorption tower through the plurality of fixed bar, and fixed bar is arranged on that the inwall on eddy flow plate top, an end and absorption tower is fixed, the blind plate of an end and eddy flow plate is fixed.
Described spraying layer quantity is three layers; 2.5m begins setting to described spraying layer from eddy flow plate top, is spaced apart 1.5m between adjacent spraying layer; Described demist number of layers is two-layer; Be provided with some agitators in the described tower still; Described tower still place is provided with three pump entries, and its circulating-pump outlet is communicated with three layers of spraying layer respectively.
The beneficial effect of the utility model:
(1) the eddy flow plate need not to be provided with separately pulp-inlet pipe, and the slurries under the top spraying layer spray distribute on the eddy flow plate, the characteristics of utilizing eddy flow plate penetration to absorb, and the desulfuration efficiency that it produced is greater than the spray absorption pattern of equal slurries amount;
(2) the absorption tower slurries internal circulating load spray flux that only need satisfy three layers of spraying layer can surpass the desulfuration efficiency of four layers of spraying layer; And the SR that the eddy flow strip is come increase is limited; Comprehensive energy consumption is still low than four layers of spraying layer; And desulfuration efficiency has the increase of certain amplitude, though flue gas becomes the rotation fluidised form behind the eddy flow plate, in the process that moves upward owing to spraying layer has certain rectification effect, eddy flow plate to demist interlayer space is enough; Recover the straight line fluidised form when arriving demister, the demist layer still can reach specified work;
The combination of (3) three layers of spraying layer and one deck eddy flow plate, its SR is than the big 100~200Pa in the absorption tower of four layers of spraying layer, and liquid-gas ratio is little by 1/4 than four layers of spraying layer, and desulfuration efficiency is than four layers of spray floor height 5~10%.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1, a kind of rotational flow and spray combined absorbing tower comprises absorption tower 1; The top on absorption tower 1 and middle part are respectively equipped with exhanst gas outlet 2 and smoke inlet 7, and 1 inside, absorption tower is provided with 3, three layers of spraying layer 4 of two-layer demist layer, one deck eddy flow plate 5 and tower still 8 from top to bottom successively; Be provided with 3~4 agitators 10 in the tower still 8; Tower still 8 is provided with three pump entries 9, is used for installing the circulating pump (not shown), and outlet of circulating pump is communicated with every layer of spraying layer 4 respectively;
Eddy flow plate 5 is installed in 1.5m place, smoke inlet 7 top; Be positioned at the below of spraying layer 4, eddy flow plate 5 central areas are blind plate, and along the blind plate periphery angle of inclination being set is 35 °~55 ° blade; 1/3 of the whole eddy flow board diameter of the diameter occupies of blind plate; Eddy flow plate 5 is fastened on the inwall on absorption tower 1 with fixed bar 6 through four, and fixed bar 6 is installed in the top of eddy flow plate 5, and an end is fixed on the inwall on absorption tower 1; One end is fixed on the blind plate of eddy flow plate 5, and fixed bar becomes 45 ° of angles with the central axis on absorption tower 1; Spraying layer 4 from eddy flow plate 5 up 2.5m begin to arrange that be spaced apart 1.5m between every layer of spraying layer 4, every layer of spraying layer 4 is made up of the plurality of nozzles that is installed on the pipeline;
The occupation mode of the utility model is following:
Flue gas is in smoke inlet 7 entering absorption towers 1; Circulating pump is drawn to spraying layer 4 with the slurries in the tower still 8 through pump entry 9; Slurries from spraying layer 4 through shower nozzle from top to bottom spray and with reverse contact of flue gas from the bottom to top that gets into through smoke inlet 1; Slurries spray downwards and cover to eddy flow plate 5; Carry out gas-liquid with the flue gas that passes through blade and contact, most of slurries are followed flue gas rotation and are got rid of to tower wall place and flow in the tower 8 through eddy flow 5 liquid-leaking nozzles, and flue gas moves up to 3 demist of demist layer after exhanst gas outlet 2 enters in the flue.
With certain the 1 * 130t/h of power plant coal-burning boiler is example, and exhaust gas volumn is 140000Nm
3/ h, inlet SO
2Concentration is 4000mg/m
3, the rotational flow and spray combined absorbing tower that adopts the utility model to provide, its year operation electricity cost reduces 50~700,000 yuan, and desulfuration efficiency on average improves 7%, and actual its construction cost does not increase.
Claims (7)
1. rotational flow and spray combined absorbing tower; Comprise absorption tower (1); Be provided with demist layer (3), spraying layer (4) and tower still (8) in the said absorption tower (1) from top to bottom successively; Absorption tower (1) middle part is respectively equipped with smoke inlet (7) and exhanst gas outlet (2) with the top, it is characterized in that, the 1.5-2m place is provided with one deck eddy flow plate (5) below the said spraying layer (4) and above being positioned at smoke inlet (7).
2. rotational flow and spray combined absorbing tower according to claim 1; It is characterized in that; Described eddy flow plate (5) comprises the blind plate of central area and along the blind plate periphery angle of inclination is set is 35 °~55 ° blade, 1/4~1/3 of the whole eddy flow plate of the diameter occupies of said blind plate (5) diameter.
3. rotational flow and spray combined absorbing tower according to claim 1 and 2 is characterized in that, described eddy flow plate (5) is fixed on the inwall of absorption tower (1) through plurality of fixed bar (6).
4. rotational flow and spray combined absorbing tower according to claim 1 is characterized in that, described spraying layer (4) quantity is three layers.
5. rotational flow and spray combined absorbing tower according to claim 4 is characterized in that, 2.5m begins setting to described spraying layer (4) from eddy flow plate (5) top, adjacent spraying layer (4) be spaced apart 1.5m.
6. rotational flow and spray combined absorbing tower according to claim 1 is characterized in that, described demist layer (3) quantity is two-layer.
7. rotational flow and spray combined absorbing tower according to claim 1 is characterized in that, is provided with some agitators (10) in the described tower still (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011205228463U CN202410483U (en) | 2011-12-14 | 2011-12-14 | Spraying and rotational flow combined absorption column |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011205228463U CN202410483U (en) | 2011-12-14 | 2011-12-14 | Spraying and rotational flow combined absorption column |
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CN202410483U true CN202410483U (en) | 2012-09-05 |
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CN2011205228463U Expired - Lifetime CN202410483U (en) | 2011-12-14 | 2011-12-14 | Spraying and rotational flow combined absorption column |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108392973A (en) * | 2018-05-11 | 2018-08-14 | 郭明春 | A kind of desulfuration absorbing tower spiral-flow plate-type collaboration dedusting tower integrated with desulfurization synergistic |
CN109434047A (en) * | 2018-12-26 | 2019-03-08 | 熊斌 | Spray system for Ferrous Metallurgy continuous cast mold |
CN111450664A (en) * | 2020-04-13 | 2020-07-28 | 苏州市贝科德机械有限公司 | Waste gas absorption tower |
-
2011
- 2011-12-14 CN CN2011205228463U patent/CN202410483U/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108392973A (en) * | 2018-05-11 | 2018-08-14 | 郭明春 | A kind of desulfuration absorbing tower spiral-flow plate-type collaboration dedusting tower integrated with desulfurization synergistic |
CN109434047A (en) * | 2018-12-26 | 2019-03-08 | 熊斌 | Spray system for Ferrous Metallurgy continuous cast mold |
CN111450664A (en) * | 2020-04-13 | 2020-07-28 | 苏州市贝科德机械有限公司 | Waste gas absorption tower |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20120905 |