CN206483329U - Two-part fume desulfurizing tower and the equal adfluxion liquid device of step for fume desulfurizing tower - Google Patents
Two-part fume desulfurizing tower and the equal adfluxion liquid device of step for fume desulfurizing tower Download PDFInfo
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- CN206483329U CN206483329U CN201720085688.7U CN201720085688U CN206483329U CN 206483329 U CN206483329 U CN 206483329U CN 201720085688 U CN201720085688 U CN 201720085688U CN 206483329 U CN206483329 U CN 206483329U
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Abstract
The utility model is related to a kind of two-part fume desulfurizing tower and the equal adfluxion liquid device of step for fume desulfurizing tower, and the equal adfluxion liquid device of step includes：The crossbeam set along the radial direction of fume desulfurizing tower, for the cross section of fume desulfurizing tower to be divided into some regions；Provided with some small secondary beams in every piece of region, the small secondary beam spacing parallel arranging in the same area is set, and the cope level of small secondary beam declines from the Inside To Outside in the region in step；It is connected between adjacent two small secondary beams in the same area by hydrops plate, and hole is provided with hydrops plate；It is provided with liquid bath on outermost hydrops plate, the charging conduit is used to connect with the refluxing opening being arranged in desulfurizing tower tower wall.It is small that equal adfluxion liquid device of the present utility model occupies absorption tower height space, and the second absorber portion circulating pump lift is greatly reduced, so that two-part fume desulfurizing tower can only set an absorption tower stock tank.
Description
Technical field
The utility model is related to a kind of two-part fume desulfurizing tower and the equal adfluxion liquid device of step for fume desulfurizing tower,
Belong to flue gas desulfurization field.
Background technology
At present, international and national flue gas desulfurization technique more than 80% uses lime stone-gypsum wet sulfur removal technology, flue gas stone
Lime stone-gypsum wet sulfur removal technology typically uses hollow-spraying-tower absorption tower, and desulfuration efficiency is typically 95% or so.But with economy
Development, environmental requirement is improved constantly, it is desirable to which into the year two thousand twenty China coal-fired plant flue gas, pollutant emission limit reaches combustion gas wheel
The emission request of unit, i.e., so-called " ultra-clean discharge ", it is desirable to discharge NOx concentration≤50mg/Nm in flue gas3, SO2Concentration≤
35mg/Nm3, dust concentration≤10mg/Nm3.According to this new requirement, many coal-burning power plant's practical sulphur removal efficiency will reach 99%
More than, this new demand can not be met using the past way for increasing spraying layer and pallet in absorption tower.
In order to obtain higher desulfuration efficiency, double tower double-cycle process and single column double-cycle process are occurred in that.Wherein double tower
Double-cycle process is exactly that two absorption towers are connected, and this technique flue is complicated, and flue gas resistance is big, and floor space is big, investment operation
It is costly.Completed although used single column double-cycle process absorbs in a tower, but need two stock tanks.Because
Existing single column Two-way Cycle be by " liquid collecting bowl " by an absorption tower be separated into above and below uptake zone, the height of " liquid collecting bowl " about exists
10m or so, absorption tower is drawn by uptake zone slurries in " liquid collecting bowl " collection, because " liquid collecting bowl " height is higher, if using
One stock tank, upper uptake zone spraying layer is too high away from stock tank liquid level, and circulating pump lift requires very high, energy is wasted, more than solution
Problem, using stock tank outside a tower is set again outside the stock tank on former absorption tower, makes tower ectoplasm pit level be far above absorption tower entoplasm
Pit level, upper uptake zone circulating pump lift is reduced with this.So result is the increase in occupation of land, and investment cost is high, operation control
Complexity, operating cost is high.In addition, the structure of " liquid collecting bowl ", which is unfavorable for flue gas flow field in absorption tower, uniformly, influences desulfuration efficiency.
For inlet flue gas SO2Content is high, and outlet needs to reach below 35mg flue gas SO2Absorption system, it is necessary to spray
Slurries amount is very big, namely liquid-gas ratio requirement is big.In an absorption tower, when liquid-gas ratio reaches certain value, liquid-gas ratio pair is increased
The effect of desulfuration efficiency is less and less, when more than a threshold value, and desulfuration efficiency can not only be improved by increasing liquid-gas ratio, on the contrary can
Decline desulfuration efficiency.Applicant is by the discovery that studies for a long period of time, and main cause is the desulfuration absorbing tower influence for hollow-spraying-tower
One key factor of absorption efficiency is the total surface area for the slurries particle that spraying layer sprays, namely gas liquid interfacial area.Typically
For, increase spraying layer, increase spray flux can increase gas liquid interfacial area, still, be interfered due to existing between spraying layer,
The slurries particle of ejection can mutually collide coalescence, decline liquid total surface area, the amount of slurries particle surface product and sprayed slurry
It will not be directly proportional, when spray flux reaches certain value, slurries particle total surface area does not rise anti-drop, so as to occur under desulfuration efficiency
Drop.Therefore, liquid collector is set between Multi-layer sprinkling layer, sprayed slurries several layers of above is picked out into absorption tower, avoided
Influence of the spraying layer to following spraying layer above is so as to improve bulk devulcanization efficiency.Flue gas desulfurization project, especially large-scale firepower
Power plant stack gas desulfurizing item, general processing exhaust gas volumn is larger, and absorption tower diameter is than larger, and sprayed slurry amount is also larger, exploitation
A kind of good liquid collector is always the direction of those skilled in the art's long-term endeavour.
CN201510575631.0 is disclosed in a kind of efficient desulfurization dust-removal system for gas cleaning, the system and set
Hydrops distributor is used to collect in upper strata spraying layer slurries enters stock tank by pipeline outside tower, reduces upper strata spray slurry
Influence of the liquid to lower floor's sprayed slurry to desulfurization and dedusting.But flue gas pass through this device when, most of gas is flowed by dash
The slurries that gap between cap and support member enters above upper strata spraying layer, with hydrops distributor are substantially contactless, therefore
Hydrops dispenser device is simple collection upper strata spraying layer slurries, is imitated for the mass transfer of gas-liquid two-phase without obvious reinforcing
Really.
Therefore, exploitation can uniform air-flow reduction height liquid collector so that optimize that single column two-region absorption system has very much must
Will.
Utility model content
The utility model aims to provide a kind of two-part fume desulfurizing tower and the equal adfluxion liquid of step for fume desulfurizing tower
Device, the equal adfluxion liquid device can cause the uniform sprinkle of the slurries of last layer spraying layer on liquid collecting plate and be held by air-flow,
Make through liquid collecting plate sieve aperture and oblique spray orifice gas with positioned at liquid collecting plate upper surface liquid fully contacted on liquid collecting plate after
Flow, eventually fall into liquid bath to tower circumferential direction step by step from desulfurizing tower center, then by falling the slurry reflux pipe stream outside liquid bath
Return absorption tower stock tank.
To achieve these goals, the technical scheme that the utility model is used is：
A kind of equal adfluxion liquid device of step for fume desulfurizing tower, it includes：
The crossbeam set along the radial direction of fume desulfurizing tower, for the cross section of fume desulfurizing tower to be divided into some areas
Domain；
Provided with some small secondary beams in every piece of region, the small secondary beam spacing parallel arranging in the same area is set, and small secondary beam
Cope level declines from the Inside To Outside in the region in step；
It is connected between adjacent two small secondary beams in the same area by hydrops plate, and hole is provided with hydrops plate；Outermost
It is provided with liquid bath on the hydrops plate of side, this, which falls liquid bath, is used to connect with the refluxing opening being arranged in desulfurizing tower tower wall.
It is preferred that the cross section of fume desulfurizing tower is divided into some sector regions by the crossbeam, if being provided with every piece of sector region
Small secondary beam spacing parallel arranging in the dry small secondary beam of root, same sector region is set, and small secondary beam cope level from the sector region
Inside To Outside in step decline.
The equal adfluxion liquid device of step of the present utility model can be uniformly distributed air-flow, again can be by the second absorber portion sprayed slurry
Collection is picked out outside tower.
Thus, when flue gas adfluxion liquid device equal through step of the present utility model, gas play on liquid collecting plate with liquid
Strong turbulence is fully contacted, and is strengthened gas-liquid mass transfer, with good desulfurization and dedusting effect, is the carving of an arrow three.
The equal adfluxion liquid device of step of the present utility model is arranged in the first absorber portion and second of two-part fume desulfurizing tower
Between absorber portion, during work, flue gas is by entering the equal adfluxion liquid device of step, the slurry of the second absorber portion spray after the first absorber portion
The uniform sprinkle of liquid is held on liquid collecting plate by air-flow, is made through the sieve aperture of liquid collecting plate and the gas of oblique spray orifice with being located at liquid collecting plate
The liquid of upper surface flows to tower circumferential direction step by step after fully being contacted on liquid collecting plate from desulfurizing tower center, eventually falls into liquid bath
It is interior, then absorption tower stock tank is flowed back to by the slurry reflux pipe fallen outside liquid bath.
According to embodiment of the present utility model, further optimization can also be made to the utility model, below for optimization after
The technical scheme of formation：
In order to further improve gas-liquid mass transfer efficiency, it is ensured that desulfurization and dedusting effect, the outer edge of the hydrops plate is set
There is downflow weir, the downflow weir of the hydrops plate, the hydrops plate and the formation between the downflow weir of the hydrops plate outer edge of inner side
Overflow area, makes the height of liquid layer on the hydrops plate of same step integrally equal.
In adjacent two pieces of liquid collecting plates, the liquid collecting close to outside is higher than close to the cope level of the downflow weir of the liquid collecting plate of inner side
The cope level of the downflow weir of plate.Thus, many sieve apertures are provided with described collector plate, while being provided with towards the oblique of liquid flow path direction
Spray orifice, is provided with downflow weir, the height of downflow weir is from top to bottom in higher level's liquid collecting plate to the edge of subordinate's liquid collecting plate.More preferably
The difference in height between two downflow weirs of arbitrary neighborhood in ground, same sector region is equal.
In order to ensure that flue gas can only enter top area from sieve aperture and oblique spray orifice, so as to ensure desulfurized effect, it is described fall liquid
Groove is isolated by sealing plate with the gas phase of lower space.
Preferably, it is described fall liquid bath be shaped as arch or annular.Conventional design is generally arch, but desulfuration absorbing tower
Diameter is big, to consider all column plates of underclass can directly overflow to falling liquid bath, it is also considered that fall the area of liquid bath as far as possible
Small, applicant can reduce the area of resistance and increase gas-liquid contact by the preferred consideration selection annular that studies for a long period of time, and favorably
In the uniformity of flue gas.
Slurries are the gypsum slurries of 15% or so solid content in desulfurizing tower, and perforate is too small easily stifled, if perforate is too big, Shen
Ask someone to find that flue gas flow locally uneven phenomenon can be produced by research, be unfavorable for desulfurization and dedusting.The seam length choosing of oblique spray orifice
Select similarly.High selection is stitched, Gao Tai little is stitched, low layer liquid can only be promoted, supernatant liquid stitches Gao Tai great, air-flow there may be refluence
Impulsive force to liquid diminishes, and is unfavorable for the flowing of sieve plate sizing liquor.The hole of the hydrops plate is the sieve aperture for uniform air-flow
With the oblique spray orifice being obliquely installed；The aperture of the sieve aperture is 15mm-50mm, seam a length of 10mm-40mm of the oblique spray orifice, described
The a height of 1mm-10mm of seam of oblique spray orifice.It is preferred that the aperture of sieve aperture is 30mm-40mm, a length of 20mm-30mm of seam of preferably oblique spray orifice,
It is preferred that a height of 3mm-5mm of the seam of oblique spray orifice.
The size for the percent opening that applicant passes through on the discovery that studies for a long period of time, hydrops plate, the height of decision sieve plate starching liquid layer,
The size of resistance, if percent opening is too small, sieve plate starching liquid layer is uprised, resistance increase, it is preferable that the perforate on the hydrops plate
Rate is 25%-50%.Preferably 30%-40%.
The equal adfluxion liquid device of step of the present utility model is divided into several parts by radial direction crossbeam by tower section is absorbed, described
Liquid collecting plate is arranged between radial direction crossbeam, is supported by taking root in the small secondary beam on radial direction crossbeam.Some levels of liquid collecting plate point are by centre
Decline step by step to surrounding, to tower wall at liquid collecting plate on be provided with liquid bath.
Based on the design of same utility model, the utility model additionally provides a kind of two-part fume desulfurizing tower, and it includes
Tower body, is arranged on the exhanst gas outlet at the top of the smoke inlet of tower body bottom and tower body, is arranged on the absorption tower slurry in tower body bottom
Pond；The first absorber portion, equal adfluxion liquid device, the second absorber portion and demister are sequentially provided with the tower body from bottom to top；It is described
Equal adfluxion liquid device is the described equal adfluxion liquid device of step, and the equal adfluxion liquid device covers whole tower body cross section, makes to wear
The gas for crossing the hole of liquid collecting plate is fully contacted with the liquid positioned at liquid collecting plate upper surface on liquid collecting plate；The equal adfluxion liquid device
Outer be provided with and be opened in refluxing opening on the inwall of tower body, the refluxing opening passes through slurry reflux pipe and connected with absorption tower stock tank
It is logical.
Thus, flue gas is equal by entering the equal adfluxion liquid device of step, the slurries of the second absorber portion spray after the first absorber portion
Even sprinkle is held on liquid collecting plate by air-flow, is made through the sieve aperture of liquid collecting plate and the gas of oblique spray orifice with being located at liquid collecting plate upper table
The liquid in face flows to tower circumferential direction step by step after fully being contacted on liquid collecting plate from desulfurizing tower center, eventually falls into liquid bath,
Absorption tower stock tank is flowed back to by the slurry reflux pipe fallen outside liquid bath again.
The equal adfluxion liquid device of step is highly 0.5m-1.2m.Preferably 0.6-1.0m.Due to ladder of the present utility model
The equal adfluxion liquid device of rank is highly relatively small, only 0.8m or so, and " liquid collecting bowl " needs about 10m high, therefore, it can drop significantly
The lift of low second absorber portion circulating pump, makes it possible two absorber portions with an absorption tower stock tank.Meanwhile, when gas is through originally
During the equal adfluxion liquid device of the step of utility model, the violent turbulence on liquid collecting plate is fully contacted gas with liquid, strengthens gas-liquid two
Phase mass transfer, with good desulfurization and dedusting effect, be the carving of an arrow three.Therefore, the equal adfluxion liquid device of this step has collection slurry concurrently
Liquid, uniform air-flow, absorption SO2With the function of dust.
Preferably, first absorber portion includes at least one layer of spraying layer, and the absorption tower stock tank passes through the first absorber portion
Circulating pump is connected with the spraying layer of corresponding first absorber portion；Second absorber portion includes at least one layer of spraying layer, the suction
Tower stock tank is received to connect by the spraying layer of corresponding second absorber portion of the second absorber portion circulating pump.Thus, starched in the stock tank of absorption tower
Liquid is pumped to the first absorber portion spraying layer and the second absorber portion by the first absorber portion circulating pump and the second absorber portion circulating pump
Spraying layer carries out slurries spray, and slurries are atomized into small particle size droplets in spraying layer, is inversely contacted with rising flue gas, removes it
In SO2, the sprayed slurry of the first absorber portion is returned directly to absorption tower stock tank, and the slurries of the second absorber portion are equal by above-mentioned step
Adfluxion liquid device returns to absorption tower stock tank after collecting through return duct.
Nationality enters absorption tower by said structure, flue gas from gas approach, passes through the first absorber portion, this absorber portion from the bottom up
If Multi-layer sprinkling layer, spraying layer is corresponded with many first absorber portion circulating pumps, can be according to SO in inlet flue gas2Content
Height adjusts the unlatching number of plies of spraying layer.The slurries that flue gas sprays with the first absorber portion spraying layer are inversely contacted, wherein most
SO2Absorbed with dust, flue gas up passes through the equal adfluxion liquid device of step, slurries are then dropped downward into the stock tank of absorption tower, flue gas
Through during the equal adfluxion liquid device of step, by uniform and part SO again2Absorbed and absorbed subsequently into second with dust
Section, this absorber portion sets Multi-layer sprinkling layer, and spraying layer is corresponded with many second absorber portion circulating pumps, can be according to inlet flue gas
Middle SO2The height of content adjusts the unlatching number of plies of spraying layer.The slurries that flue gas sprays with the second absorber portion spraying layer are inversely contacted,
SO is carried out again2Absorb, so as to reach the requirement of ultra-clean discharge, flue gas continues up to enter demister, the slurries of whereabouts
Then collected, be back to again by slurry reflux pipe in the stock tank of absorption tower through falling liquid bath by the equal adfluxion liquid device of step.Flue gas is past again
After the upper droplet removed by demister in flue gas chimney is discharged into from exhanst gas outlet.
Slurries in absorption tower stock tank of the present utility model are pumped to the first absorber portion and the second absorber portion by circulating pump
Spraying layer, slurries are atomized into small particle size droplets in spraying layer, are inversely contacted with rising flue gas, remove SO therein2, so
After return to absorption tower stock tank.The equal adfluxion liquid device of step is mainly used in collecting the sprayed slurry of the second absorber portion, passes through tower
Exteenal reflux pipe returns to absorption tower stock tank.Have uniform flue gas stream concurrently again simultaneously, promote SO2The effect of absorption.Because it occupies absorption
Tower height degree space is small, and the second absorber portion circulating pump lift is greatly reduced, so that two-part fume desulfurizing tower can only be set
One absorption tower stock tank.
Compared with prior art, the beneficial effects of the utility model are：The equal adfluxion liquid device of step of the present utility model is big
The big lift for reducing the second absorber portion circulating pump, makes it possible two absorber portions with an absorption tower stock tank.Meanwhile, work as gas
During adfluxion liquid device equal through step of the present utility model, the violent turbulence on liquid collecting plate is fully contacted gas with liquid, reinforcing
Gas-liquid mass transfer, with good desulfurization and dedusting effect, be the carving of an arrow three.
For CN201510575631.0, the equal adfluxion liquid device reinforcing gas-liquid two-phase of step of the present utility model is passed
Matter, with good desulfurization and dedusting effect, per the percent opening of ladder upper sieve plate, the cofferdam height of the size of perforate, sieve plate etc. all
Want careful design, it is ensured that the flue gas flow through every one-level sieve plate is equal, it is ensured that under the different load of unit with unlatching not
In the case of with number of cycles pump, the serious phenomenon of leakage will not be produced, in each from top to bottom layer of ladder fluid flow increase
Situation, it is ensured that the uniformity of flue gas in tower, therefore need careful design to make the resistance of each layer of ladder equal.
Brief description of the drawings
Fig. 1 is a kind of example structure schematic diagram of two sections of fume desulfurizing towers of the utility model；
Fig. 2 is a kind of example structure schematic diagram of the equal adfluxion liquid device of step of the utility model；
Fig. 3 is a kind of profilograph of the equal adfluxion liquid device embodiment of step of the utility model.
In figure：
1st, gas approach；2nd, the first absorber portion；3rd, the equal adfluxion liquid device of step；5th, demister；6th, exhanst gas outlet；8th, first
Absorber portion circulating pump；9th, the second absorber portion circulating pump 10, absorption tower stock tank；11st, radial direction crossbeam；12nd, downflow weir；13rd, small secondary beam；
14th, liquid bath 15, refluxing opening are fallen；16th, sieve aperture；17th, oblique spray orifice；18th, liquid collecting plate.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
There are " on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with accompanying drawing in itself is consistent, not to structure
Play restriction effect.
A kind of equal adfluxion liquid device of the step of two sections of fume desulfurizing towers, belongs to a part of two-part fume desulfurizing tower,
As shown in Figure 2 and Figure 3, the equal adfluxion liquid device 3 of the step is arranged between the first absorber portion 2 and the second absorber portion 4, and flue gas leads to
Cross and enter the equal adfluxion liquid device 3 of step after the first absorber portion 2, the equal adfluxion liquid device 3 of step covers whole absorption tower cross section, is
The liquid collecting plate 18 that the middle high low step of surrounding declines.
As shown in figure 3, liquid collecting plate 18 is supported by beam.Support beam is divided to two classes, and a class is the radial direction crossbeam being supported in tower wall
11, radial direction crossbeam is above liquid collecting plate 18, will absorb tower section and be divided into several regions, another kind of is to be supported in radial direction crossbeam 11
On small secondary beam 13, the position specific diameter of small secondary beam 13 is low to crossbeam 11, and step declines from inside to outside.Liquid collecting plate 18 is supported in
On small secondary beam 13, also step declines from inside to outside.Liquid collecting plate 18 is provided with sieve aperture 16 with uniform air-flow, is also provided with oblique spray orifice 17, with
Flow stream velocity is improved, liquid layer thickness is reduced.The sieve aperture 16 of liquid collecting plate 18 and the aperture of oblique spray orifice 17 and percent opening are obtained by calculating,
Prevent leakage.
It is provided with liquid bath 14 on the liquid collecting plate 18 of tower wall, falls liquid bath 14 and be connected with the outer slurries return duct 7 of tower.In every ladder
The downflow weir 12 that level liquid collecting plate 18 edge is not waited provided with height, to control height of liquid layer on each step liquid collecting plate 18 of substantially equal,
So that uniform by the air-flow of each liquid collecting plate 18.The uniform sprinkle of slurries of second absorber portion 4 spray is on liquid collecting plate 18, by gas
Stream is held, and is flowed step by step to tower circumferential direction from tower center, is eventually fallen into liquid bath 14, then by falling the slurry reflux outside liquid bath 14
Pipe 7 flows back to absorption tower stock tank 10.
Because the equal adfluxion liquid device 3 of this step is highly relatively small, only 0.8m or so, and " liquid collecting bowl " needs about 10m
Height, therefore, it can substantially reduce the lift of the second absorber portion circulating pump 9, two absorber portions is turned into an absorption tower stock tank 10
May.Meanwhile, when gas adfluxion liquid device 3 equal through step of the present utility model, gas play on liquid collecting plate 18 with liquid
Strong turbulence is fully contacted, and is strengthened gas-liquid mass transfer, with good desulfurization and dedusting effect, is the carving of an arrow three.Therefore, this ladder
The equal adfluxion liquid device 3 of rank has collection slurries, uniform air-flow concurrently, absorbs SO2With the function of dust.
A kind of two-part fume desulfurizing tower, as shown in figure 1, including gas approach 1, exhanst gas outlet 6, gas approach 1 and cigarette
The equal adfluxion liquid device 3 of the first absorber portion 2, step, the second absorber portion 4, the demister 5 being sequentially arranged between gas outlet 6, in flue gas
The lower section of import 1 sets slurries in absorption tower stock tank 10, absorption tower stock tank and circulated by the first absorber portion circulating pump 8 and the second absorber portion
Pump 9 is pumped to the first absorber portion 2 and the spraying layer of the second absorber portion 4 carries out slurries sprayed slurry and granule is atomized into spraying layer
Footpath drop, inversely contacts with rising flue gas, removes SO therein2, the sprayed slurry of the first absorber portion 2 is returned directly to absorption tower slurry
Pond 10, the slurries of the second absorber portion 2 return to absorption tower stock tank after being collected by the equal adfluxion liquid device 3 of above-mentioned step through return duct 7
10。
As shown in figure 1, the first absorber portion 2 sets 3-4 layers of spraying layer, second segment absorber portion 4 sets layer 2-3 spraying layer, void tower spray
Drench pattern.Flue gas enters absorption tower from gas approach 1, and from the bottom up by the first absorber portion 2, this absorber portion sets Multi-layer sprinkling
Layer, spraying layer is corresponded with many first absorber portion circulating pumps 8, can be according to SO in inlet flue gas2The height adjustment of content
The unlatching number of plies of spraying layer.The slurries that flue gas sprays with the spraying layer of the first absorber portion 2 are inversely contacted, wherein most SO2And powder
Dirt is absorbed, and flue gas up passes through the equal adfluxion liquid device 3 of step, and slurries are then dropped downward into absorption tower stock tank 10, and flue gas is being worn
Cross during the equal adfluxion liquid device 3 of step, by uniform and part SO again2Absorbed with dust subsequently into the second absorber portion 4,
This absorber portion sets Multi-layer sprinkling layer, and spraying layer is corresponded with many second absorber portion circulating pumps 9, can be according in inlet flue gas
SO2The height of content adjusts the unlatching number of plies of spraying layer.The slurries that flue gas sprays with the spraying layer of the second absorber portion 4 are inversely contacted,
SO is carried out again2Absorb, so as to reach the requirement of ultra-clean discharge, flue gas continues up to enter demister, the slurries of whereabouts
Then collected, be back to again by slurry reflux pipe 7 in absorption tower stock tank 10 through falling liquid bath 14 by the equal adfluxion liquid device 3 of step.Cigarette
Gas from exhanst gas outlet 6 after the droplet in the removing flue gas of demister 5 again up by being discharged into chimney.
The content that above-described embodiment is illustrated should be understood to that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than scope of the present utility model is limited, after the utility model has been read, those skilled in the art are new to this practicality
The modification of the various equivalent form of values of type each falls within the application appended claims limited range.
Claims (10)
1. a kind of equal adfluxion liquid device of step for fume desulfurizing tower, it is characterised in that including：
The crossbeam set along the radial direction of fume desulfurizing tower（11）, for the cross section of fume desulfurizing tower to be divided into some areas
Domain；
Provided with some small secondary beams in every piece of region（13）, the small secondary beam in the same area（13）Spacing parallel arranging is set, and small time
Beam（13）Cope level decline from the Inside To Outside in the region in step；
Adjacent two small secondary beams in the same area（13）Between pass through hydrops plate（18）It is connected, and in hydrops plate（18）On be provided with
Hole；Outermost hydrops plate（18）On be provided with liquid bath（14）, this falls liquid bath（14）For with being arranged in desulfurizing tower tower wall
Refluxing opening（15）Connection.
2. the equal adfluxion liquid device of the step for fume desulfurizing tower described in claim 1, it is characterised in that the hydrops plate
（18）Outer edge be provided with downflow weir（12）, the hydrops plate（18）Downflow weir（12）, the hydrops plate（18）And positioned at inner side
Hydrops plate（18）Overflow area is formed between the downflow weir of outer edge, makes the hydrops plate of same step（18）On height of liquid layer it is whole
Body phase etc..
3. the equal adfluxion liquid device of the step for fume desulfurizing tower described in claim 2, it is characterised in that adjacent two pieces of liquid collectings
Plate（18）In, the liquid collecting plate close to inner side（18）Downflow weir（12）Cope level be higher than close to outside liquid collecting plate（18）'s
Downflow weir（12）Cope level.
4. the equal adfluxion liquid device of the step for fume desulfurizing tower any one of claim 1-3, it is characterised in that institute
State liquid bath（14）Isolated by sealing plate with the gas phase of lower space.
5. the equal adfluxion liquid device of the step for fume desulfurizing tower any one of claim 1-3, it is characterised in that institute
State liquid bath（14）Be shaped as arch or annular.
6. the equal adfluxion liquid device of the step for fume desulfurizing tower any one of claim 1-3, it is characterised in that institute
State hydrops plate（18）Hole be sieve aperture for uniform air-flow（16）With the oblique spray orifice being obliquely installed（17）；The sieve aperture（16）'s
Aperture is 15mm-50mm, the oblique spray orifice（17）The a length of 10mm-40mm of seam, the oblique spray orifice（17）The a height of 1mm- of seam
10mm。
7. the equal adfluxion liquid device of the step for fume desulfurizing tower any one of claim 1-3, it is characterised in that institute
State hydrops plate（18）On percent opening be 25%-50%.
8. a kind of two-part fume desulfurizing tower, including tower body, are arranged on the smoke inlet of tower body bottom（1）With the cigarette at the top of tower body
Gas is exported（6）, it is arranged on the absorption tower stock tank in tower body bottom（10）；The first absorption is sequentially provided with the tower body from bottom to top
Section（2）, equal adfluxion liquid device（3）, the second absorber portion（4）And demister（5）；Characterized in that, the equal adfluxion liquid device（3）
For the equal adfluxion liquid device of step any one of claim 1-7, the equal adfluxion liquid device（3）Cover whole tower body horizontal
Section, makes through liquid collecting plate（18）Hole gas with positioned at liquid collecting plate（18）The liquid of upper surface is in liquid collecting plate（18）It is upper abundant
Contact；The equal adfluxion liquid device（3）Outer be provided with and be opened in refluxing opening on the inwall of tower body（15）, the refluxing opening
（15）Pass through slurry reflux pipe（7）With absorption tower stock tank（10）Connection.
9. two-part fume desulfurizing tower according to claim 8, it is characterised in that the equal adfluxion liquid device of step（3）
Highly it is 0.5m-1.2m.
10. two-part fume desulfurizing tower according to claim 8, it is characterised in that first absorber portion（2）Including extremely
Few one layer of spraying layer, the absorption tower stock tank（10）Pass through the first absorber portion circulating pump（8）With corresponding first absorber portion（2）'s
Spraying layer is connected；
Second absorber portion（4）Including at least one layer of spraying layer, the absorption tower stock tank（10）Circulated by the second absorber portion
Pump（9）Corresponding second absorber portion（4）Spraying layer connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720085688.7U CN206483329U (en) | 2017-01-23 | 2017-01-23 | Two-part fume desulfurizing tower and the equal adfluxion liquid device of step for fume desulfurizing tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720085688.7U CN206483329U (en) | 2017-01-23 | 2017-01-23 | Two-part fume desulfurizing tower and the equal adfluxion liquid device of step for fume desulfurizing tower |
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| CN206483329U true CN206483329U (en) | 2017-09-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789972A (en) * | 2017-01-23 | 2018-03-13 | 永清环保股份有限公司 | A kind of equal adfluxion liquid device of two-part fume desulfurizing tower and its step |
| CN108126509A (en) * | 2018-01-04 | 2018-06-08 | 台鹰环境工程有限公司 | High-efficiency desulfurization smoke distributing equipment |
-
2017
- 2017-01-23 CN CN201720085688.7U patent/CN206483329U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789972A (en) * | 2017-01-23 | 2018-03-13 | 永清环保股份有限公司 | A kind of equal adfluxion liquid device of two-part fume desulfurizing tower and its step |
| CN107789972B (en) * | 2017-01-23 | 2024-03-12 | 永清环保股份有限公司 | Two-section flue gas desulfurization tower and step flow equalizing and liquid collecting device thereof |
| CN108126509A (en) * | 2018-01-04 | 2018-06-08 | 台鹰环境工程有限公司 | High-efficiency desulfurization smoke distributing equipment |
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