Embodiment
Referring to figs. 1 through Fig. 5, explain that the foam of an embodiment of the present invention is removed device.
Fig. 1 is that the foam of this embodiment of explanation is removed the vertical view of the structure of device.Fig. 2 is the schematic synoptic diagram of the foam of explanatory view 1 structure of removing device.
It is to separate the device of removing and handling with attending the buoyant foam B of institute from the water surface WL that for example uses seawater after the desulfurization that seawater discharges as the flue gas desulfurization equipment of absorption agent promptly to discharge seawater that the foam of this embodiment is removed device 1, and is that the water surface WL that mobile in drain passageway 10 is discharged seawater is attend the device that the buoyant foam B of institute handles.
Like Fig. 1 and shown in Figure 2, remove device 1 at foam and mainly be provided with foam recovery portion 2, foam recovery groove 3, froth breaking portion 4, mixing part 5, reach discharge portion 6.
As shown in Figure 1, drain passageway 10 is the streams that surrounded by wall 11, and is with the stream of the discharge seawater of discharging from flue gas desulfurization equipment to the off-lying sea discharging.Regional 12A, 12B, 12C promptly take a breath in the zone that drain passageway 10 is provided with the decarbonate of discharging seawater.
Need to prove,, can use known structure, do not limit especially as the structure of the regional 12A of ventilation, 12B, 12C.
Fig. 3 is the synoptic diagram of structure of the foam recovery portion of explanatory view 1.
To shown in Figure 3, foam recovery portion 2 will reclaim from drain passageway 10 by buoyant foam B on the water surface WL that discharges seawater like Fig. 1.
Mainly be provided with guide portion 21, foam maintaining part 22, dolly 23, reach directing plate 14 in foam recovery portion 2.
Fig. 4 is the sectional view of structure of the guide portion of explanatory view 3.
Guide portion 21 is tracks that dolly 23 moves back and forth, and foam maintaining part 22 is supported.
Like Fig. 3 and shown in Figure 4, be provided with a pair of beam-like element 21A and trolley track 21B in guide portion 21.
A pair of beam-like element 21A crosscut drain passageway 10 and extending is linked and the concrete that extends in parallel to each other forms by the upper end with the wall 11 of drain passageway 10.
Trolley track 21B is the tabular member that is formed by the stainless steel of the upper surface that is configured in beam-like element 21A metals such as (SUS).Be configured to, configuration dolly 23 on trolley track 21B is arranged on the rake face 23B skived foam of dolly bottom and on directing plate 14, slides.
On the other hand, the lower surface of the beam-like element 21A in the guide portion 21 that disposed of the downstream side (downside of Fig. 3) in discharging the flowing of seawater disposes foam maintaining part 22.
The end of foam recovery groove 3 sides (right side of Fig. 2) in the guide portion 21 is outstanding towards foam recovery groove 3 from drain passageway 10.
On the other hand, between a pair of guide portion 21 of the wall 11 of drain passageway 10, be provided with peristome 13 and directing plate 14.
Peristome 13 is that mobile foam B compares with other part to the part that foam recovery groove 3 flows in drain passageway 10, is the part of the height step-down of wall 11.Be provided with directing plate 14 at peristome 13.
Directing plate 14 makes in drain passageway 10 mobile foam B when foam recovery groove 3 flows into, with foam B with discharge seawater and separate.In addition, directing plate 14 is arranged on the inclined wall of peristome 13, constitutes from the drain passageway 10 oblique face of square neck towards foam recovery groove 3 and upwards.
Need to prove that the high mode of maximum stage when full sea (for example water level) that directing plate 14 is discharged seawater with its upper end than mobile in drain passageway 10 disposes.
Foam maintaining part 22 is with the membranaceous or tabular parts that remain on the below in the zone that dolly 23 moves back and forth with the discharge seawater of drain passageway 10 towards the foam B of downstream flow.Therefore, the lower end of foam maintaining part 22 arrives the water surface WL of mobile discharge seawater in drain passageway 10 at least.
Need to prove,, can use curtain wall, bubble to assemble the known parts of buoyancy aid, oil barrier etc. as foam maintaining part 22.
Dolly 23 moves back and forth on guide portion 21, will be reclaimed to foam recovery groove 3 by the foam that foam maintaining part 22 is kept thus.
Mainly be provided with dolly main body 23A and rake face 23B at dolly 23.
Dolly main body 23A keeps rake face 23B, moves back and forth on the trolley track 21B of guide portion 21 by being arranged on the wheel on the dolly main body 23A.The parts of the known generation motivating force of use phonomoter etc. in the moving of dolly main body 23A.
Rake face 23B moves back and forth with dolly main body 23A, will in drain passageway 10, reclaim to foam recovery groove 3 by mobile foam B thus.Rake face 23B forms membranaceous or tabular, and is installed in that dolly main body 23A goes up and the lower end arrives the mode of mobile foam B in drain passageway 10 at least and disposes with the upper end.
In addition, rake face 23B collects foam B when the direction near peristome 13 moves, and when the direction of leaving peristome 13 moves, does not collect foam B.
Particularly, rake face 23B is bent into two towards peristome 13 sides near the central authorities of above-below direction.When the direction near peristome 13 moves, rake face 23B extends as the crow flies, collects foam B by following the bringing in of rake face 23B.On the other hand, when the direction of leaving peristome 13 moves, rake face 23B towards peristome 13 direction bendings, therefore can not collect foam B by following the bringing in of rake face 23B near central authorities.
But perhaps replace the structure that rake face 23B is formed bending, also can with rake face 23B form can recoverable deformation towards peristome 13 directions structure, limit especially.
Fig. 5 is the synoptic diagram of configuration of foam recovery groove, froth breaking portion and the mixing part of explanatory view 2.
Foam recovery groove 3 flows into the foam B that recovery is arranged, and the foam B that reclaims eliminates in portion within it.
Like Fig. 2 and shown in Figure 5, mainly be provided with first area 31 of carrying out froth breaking and the second area 32 that carries out froth breaking and stirring at foam recovery groove 3.
First area 31 is the initial zones that flow into of foam B of being reclaimed by foam recovery portion 2.
First area 31 be configured in drain passageway 10 position adjacent and also with peristome 13 position adjacent.In addition, constitute, first area 31 is littler than the area of second area 32, and depth as shallow.31 dispose the froth breaking nozzle 41 of froth breaking portion 4 in the first area.
Second area 32 is to flow into the foam B of first area 31 and discharge the zone that seawater flowed into, and is the zone of the foam B inflow of the foaming composition of the foam B of elimination in first area 31, not elimination.
Second area 32 is and first area 31 position adjacent, according to the series arrangement configuration of peristome 13, first area 31, second area 32.Dispose the froth breaking nozzle 41 and the mixing part 5 of froth breaking portion 4 at second area.
The foam B that foam recovery groove 3 is reclaimed eliminates in froth breaking portion 4.
Like Fig. 2 and shown in Figure 5, mainly be provided with froth breaking nozzle 41 and froth breaking atomizing pump 42 in froth breaking portion 4.
Froth breaking nozzle 41 sprays seawater from the top and eliminates foam B for foam B.Supply with the discharge seawater from froth breaking atomizing pump 42 to froth breaking nozzle 41.Froth breaking nozzle 41 is configured in first area 31 and the top of second area 32 in the foam recovery groove 3.
Need to prove,, can use known structure, do not limit especially as the structure of froth breaking nozzle 41.
Froth breaking atomizing pump 42 will be supplied with to froth breaking nozzle 41 from the seawater that drain passageway 10 is obtained.In this embodiment, be applicable to that the example that is provided with 2 froth breaking atomizing pumps 42 describes.Thus, can use a froth breaking atomizing pump 42 that seawater is supplied with to froth breaking nozzle 41, and with another froth breaking atomizing pump 42 as preparing.
Need to prove that when the quantitative change of the foam B that should eliminate, the platform number of froth breaking atomizing pump 42 that can be through changing work is dealt with, and limits especially.
The inlet side (upstream side) of froth breaking atomizing pump 42 be provided be essentially standard-sized sheet or full cut-off froth breaking with flow valve 43, outlet side (downstream side) be provided with adjusting to pump flow into or from the froth breaking of the flow of the effusive discharge seawater of pump with flow valve 43.
Mixing part 5 prevents that the foaming composition of foam B is deposited to the bottom surface of foam recovery groove 3.Mixing part 5 is configured in the second area 32 of foam recovery groove 3, in this embodiment, is applicable to that the example that is provided with 6 mixing parts 5 describes.
As shown in Figure 2,5 mainly are provided with rotating part 51, stirring phonomoter 52 in the mixing part.
Discharge seawater in the second area 32 of 51 pairs of foam recovery grooves 3 of rotating part stirs, and prevents that the foaming composition of foam B from precipitating.
The stirring parts that is provided with bar-shaped axial region and extends at rotating part 51 with axial region quadrature ground.The axial region of rotating part 51 connects into stirring phonomoter 52 can transmit rotary driving force, and the axial region of rotating part 51 and stirring parts drive by stirring phonomoter 52 rotations.
Stir 51 rotations of phonomoter 52 driven in rotation portions.In this embodiment, be applicable to that rotating part 51 and the example that stirring phonomoter 52 disposes one to one describe.
Need to prove that the ratio of rotating part 51 and the number that stirs phonomoter 52 can also can be more than this for one to one both, also can be below this, limited especially.
Discharge portion 6 makes the foaming composition of foam B return drain passageway 10 from foam recovery groove 3.As shown in Figure 2, mainly be provided with drain flow path 61 and foam slurry pump 62 in discharge portion 6.
Drain flow path 61 is with the second area 32 of foam recovery groove 3 and near the regional banded stream of drain passageway 10.Dispose foam slurry pump 62 in drain flow path 61.
Foam slurry pump 62 makes the discharge seawater and the foaming composition of the second area 32 of foam recovery groove 3 return to drain passageway 10 via drain flow path 61.In this embodiment, be applicable to that the example that is provided with 2 foam slurry pumps 62 describes.Thus, use a foam slurry pump 62 that discharge seawater and foaming composition are returned to drain passageway 10, and can be with another foam slurry pump 62 as preparation.
Need to prove that when the amount of discharge seawater that returns to drain passageway 10 and foaming composition changed, the platform number of foam slurry pump 62 that can be through changing work was dealt with, and limits especially.
The inlet side (upstream side) of foam slurry pump 62 be provided be essentially standard-sized sheet or full cut-off discharging with flow valve 63, outlet side (downstream side) be provided with adjusting to pump flow into or from the discharging of the flow of the effusive discharge seawater of pump with flow valve 63.
Next, referring to figs. 1 through Fig. 5, explain that the foam that is made up of above-mentioned structure removes the effect of device 1.
The discharge seawater of for example discharging from flue gas desulfurization equipment flows into to drain passageway 10, and is as shown in Figure 1, in the regional 12A of ventilation, 12B, 12C, carries out decarbonate.Form foam B at the water surface WL that has carried out the discharge seawater behind the decarbonate, (downside of Fig. 1) flows foam B towards downstream with discharging seawater.
Like Fig. 2 and shown in Figure 3, below foam recovery portion 2, stopped under the effect of foam maintaining part 22 towards the foam B of downstream flow.
The foam B that is stopped is recovered to foam recovery groove 3 through the dolly 23 that on the direction of crosscut drain passageway 10, moves back and forth along guide portion 21.
Particularly, when dolly main body 23A along guide portion 21 when foam recovery groove 3 moves, through the rake face 23B that extends downwards from dolly main body 23A, the foam B that will stop collects towards foam recovery groove 3.
When rake face 23B arrival is arranged at the inclined wall 14 of peristome 13, be accompanied by moving of dolly main body 23A, the lower end of rake face 23B is lifted to the top along the wall of inclined wall 14.At this moment, foam B is kept by rake face 23B, discharge on the other hand seawater the gap of rake face 23B and inclined wall 14 towards below flow down.That is, foam B separates with the discharge seawater.
When the end of foam recovery groove 3 sides of rake face 23B through inclined wall 14, the foam B that is kept by rake face 23B falls to foam recovery groove 3.
Dolly 23 makes the direct of travel counter-rotating when the end of foam recovery groove 3 sides that arrive guide portion 21, begin to move to the direction of leaving foam recovery groove 3.At this moment, rake face 23B can easily cross inclined wall 14 because of bending.In addition, when on drain passageway 10, moving, rake face 23B bending and prevent that foam B is in the direction set that leaves foam recovery groove 3.
The foam B that drops to foam recovery groove 3 is directed to first area 31 at first, is directed to second area 32 then.
In first area 31 and second area 32, spray the discharge seawater to foam B, and foam B is eliminated from froth breaking nozzle 41.
Supply with from drain passageway 10 by froth breaking atomizing pump 42 from the discharge seawater that froth breaking nozzle 41 sprays.In this embodiment, be applicable to that the example of 1 running in 2 froth breaking atomizing pumps 42 describes.In this case, open with flow valve 43, close with flow valve 43 at the upstream side of the froth breaking atomizing pump 42 that stops and the froth breaking of downstream side configuration at the upstream side of the froth breaking atomizing pump 42 that turns round and the froth breaking of downstream side configuration.
Therefore, discharging seawater supplies with to froth breaking nozzle 41 with the froth breaking atomizing pump 42 of flow valve 43 and running via the froth breaking of opening.
Need to prove that in Fig. 2, the froth breaking of opening represented by hollow with flow valve 43, the froth breaking of closing is represented by blacking with flow valve 43.
The foaming composition of organism that in foam B, contains in the seawater to be comprised etc., when foam B was eliminated, the discharge seawater of foaming composition in foam recovery groove 3 sneaked into.
In second area 32, discharge seawater and stir, so foaming composition also is stirred with discharging seawater by mixing part 5.
That is, stir phonomoter 52 through supply capability and produce rotary driving force, 51 rotations of driven in rotation portion.When rotating part 51 is rotated by driving, also in the discharge seawater, rotate in the stirring parts of the lower end of axial region configuration.Thus, produce current in the discharge seawater of second area 32 and for example produce round-robin current along the vertical direction, proportion is distributed in the discharge seawater than discharging the heavy foaming composition of seawater equably.
The discharge seawater of second area 32 and the foaming composition that comprises thereof turn back near the zone, bottom surface of drain passageway 10 via the drain flow path 61 and the foam slurry pump 62 of discharge portion 6.
In this embodiment, be applicable to that the example of 1 running in 2 foam slurry pumps 62 describes.In this case, open with flow valve 63, close with flow valve 63 at the upstream side of the foam slurry pump 62 that stops and the discharging of downstream side configuration at the upstream side of the foam slurry pump 62 that turns round and the discharging of downstream side configuration.
Therefore, discharging seawater supplies with to froth breaking nozzle 41 with the foam slurry pump 62 of flow valve 63 and running via the discharging of opening.
Need to prove that in Fig. 2, the discharging of opening represented by hollow with flow valve 63, the discharging of closing is represented by blacking with flow valve 63.
Need to prove that foam slurry pump 62 and discharging are controlled based on the measured value of the horizon sensor 64 that the water level of the discharge seawater that is configured in foam recovery groove 3 is measured with flow valve 63.
In addition, froth breaking atomizing pump 42, foam slurry pump 62, froth breaking also can be controlled qualification especially based on the measured value of the horizon sensor 64 that the water level of the discharge seawater that is configured in foam recovery groove 3 is measured with flow valve 43 and discharging with flow valve 63.
According to above-mentioned structure; The foam B that the water surface WL that discharges seawater from mobile drain passageway 10 is recovered to foam recovery groove 3 is eliminated by froth breaking portion 4, said foamy foaming composition with the discharge seawater of foam recovery groove 3 turn back to drain passageway 10 near.Therefore, and foaming composition is compared from discharging the isolating method of seawater as powder, slurries, can easily be handled foaming composition.
Need to prove that foaming composition is a principal constituent with the organism that comprises in the seawater etc. originally, even therefore foaming composition returns drain passageway 10, mobile is discharged seawater and also can not conflicted with environmental criteria in drain passageway 10.
Because the discharge seawater that uses 5 pairs of mixing parts to flow into foam recovery groove 3 stirs, so foaming composition can not be deposited to foam recovery groove 3.In other words, the foaming composition that stirs through mixing part 5 returns to drain passageway 10 with discharging seawater through discharge portion 6, therefore is difficult to be deposited to the bottom surface of foam recovery groove 3.
Usually, when the discharge seawater of foam recovery groove 3 not being stirred, because of the available volume reducing of sedimentary foaming composition foam recovery groove 3, the operation that therefore need sedimentary foaming composition be removed.With respect to this, remove in the device 1 at the foam of this embodiment, because foaming composition can not be deposited to the bottom surface of foam recovery groove 3, the operation that therefore need sedimentary foaming composition not removed, and can reduce the frequency that carries out operation.
[label declaration]
1 foam is removed device
2 foam recovery portions
3 foam recovery grooves
4 froth breaking portions
5 mixing parts
6 discharge portion