CN118079574A - Liquid collecting device and desulfurization dust removal tower - Google Patents
Liquid collecting device and desulfurization dust removal tower Download PDFInfo
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- CN118079574A CN118079574A CN202410526554.9A CN202410526554A CN118079574A CN 118079574 A CN118079574 A CN 118079574A CN 202410526554 A CN202410526554 A CN 202410526554A CN 118079574 A CN118079574 A CN 118079574A
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- liquid collecting
- desulfurization
- liquid
- dust
- collecting container
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- 239000007788 liquid Substances 0.000 title claims abstract description 246
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 118
- 230000023556 desulfurization Effects 0.000 title claims abstract description 118
- 239000000428 dust Substances 0.000 title claims abstract description 114
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000003546 flue gas Substances 0.000 claims abstract description 80
- 239000002002 slurry Substances 0.000 claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 210000003437 trachea Anatomy 0.000 claims abstract 6
- 239000000945 filler Substances 0.000 claims description 22
- 239000007921 spray Substances 0.000 claims description 21
- 230000003009 desulfurizing effect Effects 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 2
- 239000011859 microparticle Substances 0.000 abstract description 18
- 239000002699 waste material Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 34
- 239000007789 gas Substances 0.000 description 26
- 239000003595 mist Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The invention relates to the field of flue gas treatment, and discloses a liquid collecting device and a desulfurization and dust removal tower, wherein the liquid collecting device comprises: the liquid collecting container and the drainage device comprise a trachea and a top cover. When the liquid collecting device is applied to the desulfurization and dust removal tower, the desulfurization and dust removal slurry sprayed out of the first sprayer is collected by the liquid collecting container after absorbing microparticles in the flue gas. In addition, in order to avoid the liquid collecting container to block the flue gas, a through hole is formed in the bottom of the liquid collecting container, and a first channel is formed in the drainage device, so that the flue gas flowing from bottom to top can pass through the through hole to enter the first channel and pass out of the first channel. The liquid collecting device can avoid the mixture of the used desulfurization dust-removing slurry and the condensation water formed by the first demister, so that the underutilized desulfurization dust-removing slurry collected in the liquid collecting container can be used for a second time, the waste of the desulfurization dust-removing slurry is reduced, and the waste of water resources is further reduced.
Description
Technical Field
The invention relates to the technical field of flue gas treatment, in particular to a liquid collecting device and a desulfurization and dust removal tower.
Background
At present, the wet ultra-clean desulfurization deep dust removal system is gradually popularized and applied as a set of stable washing water distribution system with low solid content, and utilizes desulfurization dust removal slurry to absorb fine particles, wherein the water quality in a dust removal water tank directly influences the removal effect of the fine particles, and the better the water quality (mainly the solid content), the better the absorption effect.
In the existing desulfurization dust removal tower, demister and spray thrower have been set gradually from bottom to top, flue gas gets into the tower body inside from the below and discharges from the tower body top again, at this in-process, the demister is defogged to the flue gas earlier, and form the condensate water, spray thrower rethread down spun desulfurization dust removal thick liquid absorbs the microparticle in the flue gas, and form used desulfurization dust removal thick liquid, condensate water and used desulfurization dust removal thick liquid drop to the tower bottom jointly, mix and form the mixed desulfurization dust removal thick liquid that can't secondary use, desulfurization dust removal thick liquid in the mixed desulfurization dust removal thick liquid does not absorb sufficient microparticle, lead to desulfurization dust removal thick liquid's waste, and then lead to the waste of water resource.
Disclosure of Invention
The invention aims to solve the problems of desulfurization dust-removing slurry and water resource waste in the prior art, and provides a liquid collecting device and a desulfurization dust-removing tower, wherein the liquid collecting device has the functions of collecting liquid and circulating gas.
In order to achieve the above object, a first aspect of the present invention provides a liquid collecting device, comprising: the top of the liquid collecting container is open to form a liquid inlet for liquid to enter the liquid collecting container, and the bottom of the liquid collecting container is provided with a through hole; and the drainage device comprises an air pipe and a top cover, the lower end of the air pipe is inserted into the through hole in a sealing way, the upper end of the air pipe is connected with the top cover, the lower port of the air pipe is formed into a first air vent, a second air vent and a liquid outlet are arranged on the top cover, a first channel which is communicated with the first air vent and the second air vent to allow air on the upper side and the lower side of the liquid collecting container to circulate is formed in the air pipe and the top cover, a guide plate is arranged in the top cover, and the guide plate is used for guiding liquid entering from the second air vent to the liquid outlet to be discharged out of the top cover.
Preferably, the bottom of the liquid collecting container is provided with a plurality of through holes, the drainage device is arranged on the liquid collecting container at intervals, and at least one through hole is communicated with a first channel of one drainage device; and/or the side wall of the liquid collecting container is arranged obliquely from bottom to top.
Preferably, the top end of the flow diverter is vertically higher than the top end of the liquid collection container; and/or, the top cover comprises a top wall, a side wall and a bottom wall, the top wall, the side wall and the bottom wall enclose an inner space, the second air vents are two arranged on the top wall, the liquid outlets are two arranged on opposite sides of the side wall, the bottom wall is provided with mounting holes for sealing and inserting air supply pipes, the guide plates are two arranged on the inner side surface of the side wall oppositely, a gap for passing air is formed between the two guide plates, the guide plates are obliquely downwards arranged in opposite directions, and the two guide plates are arranged under the second air vents one by one and correspond to the liquid outlets one by one.
A second aspect of the present invention provides a desulfurizing dust-collecting tower comprising: a tower body; the first sprayer is arranged in the tower body and is used for spraying desulfurization dust-removal slurry; and the liquid collecting device is arranged below the first sprayer so as to collect the desulfurization and dust removal slurry sprayed out of the first sprayer into the liquid collecting container.
Preferably, the open edge of the liquid collecting container is attached to the inner wall of the tower body; and/or, the desulfurization dust removal tower further comprises a tray arranged in the tower body, the tower body is provided with a flue gas inlet and a flue gas outlet which are sequentially arranged from bottom to top, the first sprayer and the liquid collecting device are positioned between the flue gas inlet and the flue gas outlet, and the tray is positioned below the flue gas inlet.
Preferably, the desulfurization dust-removing tower further comprises a water film dust remover, wherein the water film dust remover is arranged below a spray opening of the first sprayer so as to form a water film for dust removal on the surface of the water film dust remover by desulfurization dust-removing slurry of the first sprayer; and/or the desulfurization and dust removal tower further comprises a liquid storage tank communicated with the first sprayer and a second sprayer communicated with the liquid collecting container, and desulfurization and dust removal slurry collected by the liquid collecting container is sprayed downwards into the tower body by the second sprayer for the second time.
Preferably, the water film dust remover comprises a support frame and plastic fillers arranged in the support frame at intervals, wherein a second channel for flue gas to flow through is formed in the plastic fillers, and the surface of the plastic fillers can form a water film; and/or the desulfurization and dust removal tower further comprises a pipeline and a transfer liquid box, wherein the pipeline is used for communicating the liquid collecting container with the second sprayer.
Preferably, a plurality of scratches to which the water film is attached are formed on the surface of the plastic filler.
Preferably, the desulfurization and dust removal tower further comprises another liquid collecting device which is arranged below the spraying opening of the second sprayer to collect desulfurization and dust removal slurry sprayed by the second sprayer.
Preferably, the desulfurization dust removal tower further comprises a first demister, a second demister and a third demister, wherein the first demister, one liquid collecting device, the water film dust remover, the first sprayer, the second demister, the other liquid collecting device, the second sprayer and the third demister are sequentially arranged from bottom to top.
Through above-mentioned technical scheme, when being applied to desulfurization dust collector with liquid collecting device, liquid collecting device can set up between first spray thrower and the first defroster in the tower body, and first spray thrower spun desulfurization dust removal thick liquid is in absorbing the microparticle in the flue gas in the liquid collecting container, and another part drops on the guide plate, by the guide plate water conservancy diversion to leakage fluid dram department, from leakage fluid dram discharge top cap and drop in the liquid collecting container. In addition, in order to avoid the liquid collecting container to block the flue gas, a through hole is formed in the bottom of the liquid collecting container, and a first channel is formed in the drainage device, so that the flue gas flowing from bottom to top can pass through the through hole to enter the first channel and pass out of the first channel. The setting of liquid collecting device can avoid the desulfurization dust removal thick liquid that has used to mix with the condensate water that first defroster formed for the underutilized desulfurization dust removal thick liquid of collecting in the liquid collecting container can carry out the secondary use, reduces the waste of desulfurization dust removal thick liquid, and then reduces the waste of water resource.
Drawings
FIG. 1 is a longitudinal cross-sectional view of a liquid collecting device of the present invention;
FIG. 2 is a front view of a flow diverter of the liquid collection device;
FIG. 3 is a side view of a flow diverter of the liquid collection device;
FIG. 4 is a schematic view showing the internal structure of the desulfurizing dust-collecting tower of the present invention;
FIG. 5 is a front view of the first sprayer or the second sprayer;
FIG. 6 is a front view of a water scrubber of the desulfurizing dust scrubber; and
FIG. 7 is a top view of a water membrane scrubber.
Description of the reference numerals
10. A first sprayer; 11. a first communication pipe; 12. a first shower; 13. a first nozzle; 20. a liquid collecting device; 21. a liquid collecting container; 22. a drainage device; 221. an air pipe; 222. a top cover; 2221. a first vent; 2222. a second vent; 2223. a liquid outlet; 2224. a top wall; 2225. a sidewall; 2226. a bottom wall; 223. a deflector; 224. a support rod; 23. a discharge pipe; 30. a tower body; 31. a flue gas inlet; 32. a flue gas outlet; 40. a tray; 50. a water film deduster; 51. a support frame; 52. a plastic filler; 60. a liquid storage tank; 70. a second sprayer; 71. a second communicating pipe; 72. a second shower; 73. a second nozzle; 80. a transfer liquid tank; 100. a first mist eliminator; 110. a second demister; 120. and a third demister.
Detailed Description
In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, left, right" are used to refer generally to the upper, lower, left, right of the orientation shown in the drawings. "inner and outer" means the contour of the corresponding parts.
The following describes specific embodiments of the present application in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the application, are not intended to limit the application.
Referring to fig. 1 to 3, the present invention provides a liquid collecting device 20 including: the top of the liquid collecting container 21 is open to form a liquid inlet for liquid to enter the liquid collecting container 21, and the bottom of the liquid collecting container 21 is provided with a through hole; and the drainage device 22, the drainage device 22 includes a gas pipe 221 and a top cover 222, the lower end of the gas pipe 221 is inserted in the through hole in a sealing way, the upper end of the gas pipe 221 is connected to the top cover 222, the lower end of the gas pipe 221 is formed into a first air vent 2221, a second air vent 2222 and a liquid outlet 2223 are arranged on the top cover 222, a first channel which is communicated with the first air vent 2221 and the second air vent 2222 and is used for gas circulation on the upper side and the lower side of the liquid collecting container 21 is formed in the top cover 222, a guide plate 223 is arranged in the top cover 222, and the guide plate 223 is used for guiding liquid entering from the second air vent 2222 to the liquid outlet 2223 so as to be discharged out of the top cover 222.
In this embodiment, the gas is under the liquid collecting container 21, and enters the gas pipe 221 and the top cover 222 from the first air port 2221 of the gas pipe 221 of the flow diverter 22 in sequence, and then is discharged from the second air port 2222 of the top cover 222, and the gas under the liquid collecting container 21 always flows to the upper side of the liquid collecting container 21 along the first channel; the liquid is above the liquid collecting container 21, most of the liquid drops into the liquid collecting container 21, a small part of the liquid enters the top cover 222 from the second air vent 2222 of the top cover 222 and falls onto the flow guide plate 223, the flow guide plate 223 guides the liquid to the liquid outlet 2223, the top cover 222 is discharged from the liquid outlet 2223, the liquid outside the top cover 222 continuously falls into the liquid collecting container 21 under the gravity, the discharge of most of the liquid from the first air vent 2221 is avoided, and the collection of the liquid is realized. When the liquid collecting device 20 is applied to the desulfurization and dust removal tower, the gas is flue gas, the liquid is desulfurization and dust removal slurry, the desulfurization and dust removal slurry collected in the liquid collecting container 21 is not doped with other liquid, so that secondary utilization can be performed, waste of the desulfurization and dust removal slurry is reduced, and waste of water resources is reduced.
Specifically, the deflector 223 has a shutter structure, and can collect various moving forms of desulfurization dust-removing slurry, such as drifting desulfurization dust-removing slurry.
Referring to fig. 1 to 5, in some embodiments of the present invention, a plurality of through holes are formed at the bottom of the liquid collecting container 21, the drainage device 22 is disposed in a plurality of spaced-apart manner on the liquid collecting container 21, and at least one through hole is connected to a first channel of one drainage device 22.
In this embodiment, the gas enters the first channels of the plurality of flow directors 22 at the same time and flows out from the first channels, so as to increase the gas circulation efficiency and further increase the gas treatment efficiency.
Specifically, the number of through holes at the bottom of the liquid collecting container 21 is the same as that of the drainage devices 22, and the through holes and the drainage devices are arranged in a one-to-one correspondence manner.
Referring to fig. 1-5, in some embodiments of the present invention, the sidewall 2225 of the liquid collecting container 21 is inclined from bottom to top.
With the above arrangement, when the liquid drops onto the side wall 2225 of the liquid collecting container 21, the liquid can slide along the side wall 2225 to the inside of the liquid collecting container 21, avoiding the liquid from hanging on the side wall 2225 of the liquid collecting container 21.
Referring to fig. 1 to 5, in some embodiments of the present invention, the top end of the flow diverter 22 is vertically higher than the top end of the liquid collection container 21.
By the above arrangement, the second air vent 2222 for discharging the liquid is made higher than the top end of the liquid collecting container 21, and when the liquid collecting container 21 is filled with the liquid, the gas is discharged from the first channel from the upper portion of the highest liquid level in the liquid collecting container 21, avoiding the gas from being discharged into the liquid inside the liquid collecting container 21.
Referring to fig. 1 to 5, in some embodiments of the present invention, the top cover 222 includes a top wall 2224, a side wall 2225 and a bottom wall 2226, and the three enclose an inner space, the second air ports 2222 are two openings formed on the top wall 2224, the liquid drain ports 2223 are two openings formed on opposite sides of the side wall 2225, the bottom wall 2226 is provided with mounting holes for the air supply pipe 221 to be inserted and connected in a sealing manner, the air guide plates 223 are two opposite sides of the side wall 2225, a gap through which air passes is formed between the two air guide plates 223, and the two air guide plates 223 are arranged obliquely downwards in directions opposite to each other, and the two air guide plates 223 are arranged under the second air ports (2222) one by one and correspond to the liquid drain ports 2223 one.
In this embodiment, the gas enters the gas pipe 221 from the first gas port 2221, enters the top cover 222 from the gas pipe 221, passes through the gap between the two flow guide plates 223 in the top cover 222, and is discharged from the second gas port 2222; the liquid entering the top cover 222 from the first air port 2221 falls onto the guide plate 223, slides to the liquid outlet 2223 along the guide plate 223, and is discharged from the liquid outlet 2223, the guide plate 223 is located under the second air port 2222, the second air port 2222 is not present right above the gap between the two guide plates 223, the liquid entering the top cover 222 from the second air port 2222 is prevented from passing through the gap between the two guide plates 223, and the liquid is prevented from being discharged from the air pipe 221 from the first air port 2221.
Specifically, the top walls 2224 are two oppositely arranged, the two top walls 2224 are obliquely spliced to form a herringbone ridge structure, and referring to the direction shown in fig. 2, the left side top wall 2224 is inclined downwards to the left, the right side top wall 2224 is inclined downwards to the right, so that gas passing through a gap can flow to the second air vent 2222 along the inner wall surface of the top wall 2224 to be discharged, and liquid dropping to the outer wall surface of the top wall 2224 can slide into the liquid collecting container 21 along the top wall 2224; the inclination of the top wall 2224 is the same as the inclination of the guide plates 223 facing each top wall 2224, the inclination is consistent with the outflow direction of flue gas, and forms an acute included angle with the dropping direction of the desulfurization dust-removing slurry, so that the flow resistance of flue gas is small, the desulfurization dust-removing slurry is not easy to enter the air pipe 221, no matter whether the desulfurization dust-removing slurry is obliquely ejected or splashed, the desulfurization dust-removing slurry can be attached to the guide plates 223 and can slide out of the top cover 222 along the guide plates 223 under the action of self gravity, the gas cannot enter the space below the liquid collecting container 21 from the air pipe 221, in addition, the gas flowing along the inner wall surface of the top wall 2224 can also flow along the upper surface of the guide plates 223, and the gas can drive the desulfurization dust-removing slurry on the guide plates 223 to slide to the liquid discharge port 2223 for discharge. The side walls 2225 are vertically arranged, four side walls 2225 are sequentially arranged along the circumferential direction, two flow deflectors 223 are arranged on two side walls 2225 which are oppositely arranged, and the transverse dimension (horizontal direction in fig. 3) of the two side walls 2225 is larger than the transverse dimension (horizontal direction in fig. 2) of the other two side walls 2225. The top cover 222 further includes two bottom walls 2226, the bottom wall 2226, the side walls 2225 and the top wall 2224 of the top cover 222 enclose an inner cavity together, the two bottom walls 2226 are respectively located below the two top walls 2224, one bottom wall 2226 connects one side wall 2225 with one side of the air duct 221, the other bottom wall 2226 connects the other side wall 2225 with the other side of the air duct 221, the two bottom walls 2226 are obliquely arranged, the left bottom wall 2226 is obliquely arranged to the upper left, and the right bottom wall 2226 is obliquely arranged to the upper right, with reference to the orientation shown in fig. 2. Two top walls 2224 are respectively provided with a second air vent 2222, two opposite side walls 2225 are respectively provided with a liquid outlet 2223, two opposite side walls 2225 are respectively provided with a flow guide plate 223, and each liquid outlet 2223 is positioned at the joint of the corresponding flow guide plate 223 and the side wall 2225. As shown in FIG. 3, the drainage device 22 further comprises a supporting rod 224, and the supporting rod 224 is connected to the outer side surface of the top cover 222, so as to reinforce the top cover 222 and play a supporting role.
In other embodiments, the second air port 2222 and the liquid outlet port 2223 are provided on the side wall 2225, so that the flue gas exhausted from the second air port 2222 inevitably flows along the upper surface of the flow guiding plate 223, and the desulfurizing and dedusting slurry on the flow guiding plate 223 is driven to flow downwards to the outside of the top cover 222 to a greater extent.
Referring to fig. 1 to 7, the present invention also provides a desulfurizing and dust-removing tower comprising: a tower 30; the first sprayer 10 is arranged in the tower body 30 and is used for spraying desulfurization dust-removal slurry; and the liquid collecting device 20 is disposed below the first sprayer 10, and the liquid collecting device 20 collects the desulfurization dust-removing slurry sprayed from the first sprayer 10 into the liquid collecting container 21.
In this embodiment, the first sprayer 10 is used for spraying the desulfurizing and dedusting slurry, so as to increase the diffusion area of the desulfurizing and dedusting slurry, and enable the desulfurizing and dedusting slurry to adsorb microparticles in the flue gas flowing in the tower body 30 to the greatest extent. The desulfurization dust removal thick liquid drips to the liquid collecting container 21 of liquid collecting device 20 in, simultaneously, the flue gas of liquid collecting container 21 below can pass the first passageway of drainage ware 22, flows upwards along tower body 30, avoids liquid collecting container 21 to block the flow of flue gas. The desulfurization and dust removal slurry collected in the liquid collecting container 21 after primary use can be reused, for example, sprayed into the tower body 30 again, so as to secondarily adsorb the microparticles in the flue gas. The desulfurizing and dedusting tower can realize the desulfurization and dedusting of flue gas simultaneously, has low cost and saves the occupied area.
Specifically, the liquid collecting container 21 is fixed to the inner wall of the tower body 30 by a triangular fixing frame.
Referring to fig. 1-7, in some embodiments of the invention, the open rim of the liquid collection container 21 is attached to the inner wall of the tower 30.
Through the arrangement, the desulfurization dust removal slurry can be prevented from passing through the gap between the edge of the liquid collecting container 21 and the inner wall of the tower body 30, and the desulfurization dust removal slurry can be completely collected by the liquid collecting container 21.
Specifically, the liquid collecting container 21 is bonded to the inner wall of the tower body 30 in a sealing manner.
Referring to fig. 1 to 7, in some embodiments of the present invention, the desulfurizing and dedusting tower further includes a tray 40 disposed in the tower body 30, the tower body 30 has a flue gas inlet 31 and a flue gas outlet 32 sequentially disposed from bottom to top, the first sprayer 10 and the liquid collecting device 20 are disposed between the flue gas inlet 31 and the flue gas outlet 32, and the tray 40 is disposed below the flue gas inlet 31.
In this embodiment, as shown by the arrow in fig. 4, the flue gas enters the tower body 30 from the flue gas inlet 31 and is discharged to the outside of the tower body 30 from the flue gas outlet 32, and other liquid in the tower body 30 can drop into the tray 40 and be discharged after being collected by the tray 40, and since the tray 40 is located below the flue gas inlet 31, the tray 40 is not located on the flow path of the flue gas, and therefore, there is no need to provide a channel for the flue gas to pass through on the tray 40.
Specifically, the flue gas inlet 31 and the flue gas outlet 32 are both communicated with a flue gas pipeline.
Referring to fig. 1 to 7, in some embodiments of the present invention, the desulfurization and dust removal tower further includes a water film deduster 50, and the water film deduster 50 is disposed below a spray opening of the first sprayer 10 to form a water film for dust removal on a surface of the water film deduster 50 from desulfurization and dust removal slurry of the first sprayer 10.
In this embodiment, the desulfurization and dust removal slurry sprayed out of the first sprayer 10 forms a water film on the water film deduster 50, and in the process that the flue gas passes through the water film, microparticles and dust in the flue gas are adsorbed by the water film. The water film can increase the contact area of the desulfurization dust removal slurry and the flue gas, thereby increasing the amount of dust and microparticles in the adsorbed flue gas.
Referring to fig. 1 to 7, in some embodiments of the present invention, a water film dust remover 50 includes a support frame 51 and plastic packing 52 disposed in the support frame 51 at intervals, a second channel through which flue gas flows is formed inside the plastic packing 52, and a water film can be formed on the surface of the plastic packing 52.
In this embodiment, the surface of the plastic filler 52 forms a water film, and the flue gas contacts the water film in the process of passing through the second channel, and the microparticles and dust in the flue gas are adsorbed by the water film.
Specifically, the support frame 51 is fixed on the inner wall of the tower body 30, and a plurality of holes for fixing the plastic filler 52 are formed on the support frame, and the plastic filler 52 is arranged in a one-to-one correspondence to the plurality of holes. The plastic filler 52 is a coiled structure formed by loosely winding strip-shaped plastic, a winding gap of the coiled structure forms a second channel, the plastic filler 52 is vertically arranged, a water film is formed in a vertical direction, the second channel is also in a vertical direction, and smoke passes through the second channel in the vertical direction.
Referring to fig. 1 to 7, in some embodiments of the present invention, a plurality of scratches for attaching a water film are formed on the surface of the plastic filler 52.
Through the arrangement, due to capillary action of scratches, the desulfurization dust-removal slurry is easy to diffuse along the capillary direction, the surface films of liquid drops of the desulfurization dust-removal slurry are destroyed, the shapes of the liquid drops are changed into thin sheets, the position of the liquid inside and outside is updated quickly, all parts of the whole liquid drops have the opportunity of contacting with external gas, the heat transfer time of the liquid phase is shortened, the heat transfer coefficient is improved, the opportunity and the capability of capturing particles are increased, the heat transfer capability of plastic filler 52 in unit volume is improved, and the dust removal and micro-particle adsorption effects are improved. In addition, the scratch is used for increasing the roughness of the plastic filler 52, so as to increase the friction force between the desulfurization and dust removal slurry and the side wall 2225 of the plastic filler 52, so that a thicker, denser and firmer water film can be formed on the side wall 2225 of the plastic filler 52, and the amount of microparticles and dust in the flue gas which can be adsorbed is increased.
Specifically, the scratch formation mode of the plastic filler 52 is: a group of grinding heads rotating at high speed are added on the surface of the plastic filler 52 under the traction of the guide wheel and are driven at a constant speed, the preset feeding amount is controlled, and the grinding heads rotating at high speed scratch micron-sized dense scratches on the surface of the plastic filler 52, and the scratches are distributed on the whole surface of the plastic filler 52 and are uniform and regular.
Referring to fig. 1 to 7, in some embodiments of the present invention, the desulfurization and dust removal tower further includes a liquid storage tank 60 connected to the first sprayer 10, and a second sprayer 70 connected to the liquid collection container 21, and desulfurization and dust removal slurry collected by the liquid collection container 21 is sprayed downward into the tower body 30 by the second sprayer 70 for a second time.
In this embodiment, the liquid storage tank 60 is located at the bottom of the tower body 30, the first sprayer 10 sprays the desulfurization and dust removal slurry in the liquid storage tank 60 into the tower body 30, and the second sprayer 70 sprays the desulfurization and dust removal slurry which is collected in the liquid collecting container 21 and is subjected to primary use into the tower body 30 for secondary spraying, so that the desulfurization and dust removal slurry absorbs the microparticles in the flue gas again, the utilization rate of the desulfurization and dust removal slurry is improved, and resources are saved.
Specifically, the first sprayer 10 includes a first communicating pipe 11 connected to the liquid storage tank 60, a first spraying pipe 12 connected to the first communicating pipe 11 and located inside the tower body 30, and a plurality of first nozzles 13 connected to and spaced from the first spraying pipe 12, and a first liquid pumping pump is disposed on the first communicating pipe 11 and is used for pumping desulfurization and dust removal slurry in the liquid storage tank 60 to the first communicating pipe 11 and the first spraying pipe 12, and spraying the desulfurization and dust removal slurry from the first nozzles 13, wherein the first nozzles 13 can increase the diffusion area of the desulfurization and dust removal slurry, and further increase the contact area of the desulfurization and dust removal slurry with flue gas. The second sprayer 70 includes a second communicating pipe 71 connected to the liquid collecting container 21, a second spray pipe 72 connected to the second communicating pipe 71 and located in the tower 30, and a plurality of second nozzles 73 connected to and spaced from the second spray pipe 72, where a second liquid pump is disposed on the second communicating pipe 71, and is configured to pump the desulfurization and dust removal slurry collected in the liquid collecting container 21 after one use to the second communicating pipe 71 and the second spray pipe 72, and make the desulfurization and dust removal slurry sprayed out from the second nozzles 73, where the second nozzles 73 can increase the diffusion area of the desulfurization and dust removal slurry, and further increase the contact area between the desulfurization and dust removal slurry and the flue gas. The second sprayer 70 is located above the first sprayer 10, and micro particles in the flue gas are firstly absorbed by the desulfurization and dust removal slurry sprayed out of the first sprayer 10 for the first time, and then absorbed by the desulfurization and dust removal slurry sprayed out of the second sprayer 70 for the second time, so that the flue gas treatment effect is improved, and meanwhile, the desulfurization and dust removal slurry is saved. The tray 40 is located above the liquid storage tank 60, the edge of the tray 40 is in sealing fit with the inner wall of the tower body 30, and the tray 40 is used for isolating liquid falling from the tower body 30 and desulfurization and dust removal slurry in the liquid storage tank 60, so that the water quality of the desulfurization and dust removal slurry is ensured. The first liquid pump is the same as the second liquid pump.
Referring to fig. 1 to 7, in some embodiments of the present invention, the desulfurization and dust removal tower further includes a pipe for communicating the liquid collecting container 21 with the second sprayer 70 and a transfer liquid tank 80.
In the present embodiment, the transfer liquid tank 80 is used for storing the desulfurization and dust removal slurry collected by the liquid collecting container 21, and after the desulfurization and dust removal slurry in the transfer liquid tank 80 is stored to a predetermined amount, the desulfurization and dust removal slurry is pumped into the second communication pipe 71 and the second shower pipe 72 by the second liquid pump.
Specifically, the intermediate liquid tank 80 communicates with the liquid collecting container 21 through the discharge pipe 23, and the discharge pipe 23, the intermediate liquid tank 80, and the second sprayer 70 communicate in this order.
Referring to fig. 1 to 7, in some embodiments of the present invention, the desulfurization and dust removal tower further includes another liquid collecting device 20 (hereinafter referred to as a second liquid collecting device 20) disposed under the spray opening of the second sprayer 70 to collect desulfurization and dust removal slurry sprayed from the second sprayer 70.
In this embodiment, after the desulfurization and dust removal slurry sprayed from the second sprayer 70 is reused, it is collected in the liquid collecting container 21 of the second liquid collecting device 20, and then it may be reused after water treatment or directly discharged.
Referring to fig. 1 to 7, in some embodiments of the present invention, the desulfurization and dust removal tower further includes a first mist eliminator 100, a second mist eliminator 110, and a third mist eliminator 120, and the first mist eliminator 100, one liquid collecting device 20 (hereinafter, abbreviated as a first liquid collecting device 20), a water membrane scrubber 50, a first spray thrower 10, a second mist eliminator 110, another liquid collecting device 20 (hereinafter, abbreviated as a second liquid collecting device 20), the second spray thrower 70, and the third mist eliminator 120 are sequentially disposed from bottom to top.
In this embodiment, the flue gas enters the tower body 30 from the flue gas inlet 31, flows upwards, passes through the first demister 100 after demisting, passes through the flow diverter 22 of the first liquid collecting device 20, passes through the water film deduster 50 and contacts with the water film, dust and partial microparticles in the flue gas are adsorbed, the flue gas continues to flow upwards, contacts with the desulfurization and dust removal slurry sprayed by the first demister 10, and passes through the flow diverter 22 of the second liquid collecting device 20 after adsorbing again, passes through the second demister 110 to demist, passes through the second demister 120 after contacting with the desulfurization and dust removal slurry sprayed by the second demister 70, and finally discharges the tower body 30 from the flue gas outlet 32 after almost all microparticles in the flue gas are adsorbed.
The first liquid collecting device 20 is located above the first demister 100, so that condensed water formed by the first demister 100 can be prevented from dripping into the liquid collecting container 21 of the first liquid collecting device 20, and then desulfurization dust removal slurry in the liquid collecting container 21 is prevented from being mixed with other liquid, the water quality of the desulfurization dust removal slurry in the liquid collecting container 21 is ensured, and good desulfurization dust removal effect is ensured, and condensed water formed by the first demister 100 is prevented from dripping onto the tray 40.
Specifically, the structure, the arrangement and the working principle of the second liquid collecting device 20 are all identical to those of the first liquid collecting device 20, and are not described herein. The first mist eliminator 100, the second mist eliminator 110, and the third mist eliminator 120 are ridge mist eliminators.
In other embodiments, the third demister 120 is not provided, the first demister 100 is located between the first liquid collecting device 20 and the first sprayer 10, the first sprayer 10 can spray and rinse the first demister 100, the second demister 110 is located between the second liquid collecting device 20 and the second sprayer 70, and the second sprayer 70 can spray and rinse the second demister 110, so that the utilization rate of the desulfurization dust removal slurry is improved again.
The working principle of the desulfurizing and dedusting tower is as follows:
The flue gas enters the tower body 30 from the flue gas inlet 31, is defogged by the first defogger 100, and condensed water formed by the first defogger 100 drops into the tray 40;
the flue gas enters the air pipe 221 from the first air port 2221 of the drainage device 22 of the first liquid collecting container 21, then enters the top cover 222, and is discharged from the second air port 2222;
The flue gas passes through the second channel of the water film dust remover 50, in the process, the flue gas is fully contacted with the water film in the water film dust remover 50, dust and partial microparticles are adsorbed by the desulfurization dust removal slurry forming the water film, the desulfurization dust removal slurry dropped by the water film dust remover 50 enters the liquid collecting container 21 of the first liquid collecting device 20, the desulfurization dust removal slurry entering the top cover 222 from the second air vent 2222 of the first liquid collecting device 20 falls onto the guide plate 223, and then is guided to the outside of the top cover 222 by the guide plate 223 and falls into the liquid collecting container 21 by gravity;
The flue gas contacts with the desulfurization and dust removal slurry sprayed out of the liquid storage tank 60 by the first sprayer 10, and part of the microparticles are adsorbed again, the desulfurization and dust removal slurry sprayed out of the first sprayer 10 enters the liquid collection container 21 of the first liquid collection device 20, the desulfurization and dust removal slurry entering the top cover 222 from the second air vent 2222 of the first liquid collection device 20 falls onto the guide plate 223, is guided to the outside of the top cover 222 by the guide plate 223, and falls into the liquid collection container 21 by gravity;
The flue gas is defogged through the second defogger 110;
The flue gas enters the air pipe 221 from the first air port 2221 of the drainage device 22 of the second liquid collecting container 21, then enters the top cover 222, and is discharged from the second air port 2222;
the flue gas contacts with the desulfurization and dust removal slurry sprayed out of the liquid collection container 21 of the first liquid collection device 20 by the second sprayer 70, the micro particles in the flue gas are almost completely absorbed, the desulfurization and dust removal slurry sprayed out of the second sprayer 70 enters the liquid collection container 21 of the second liquid collection device 20, the desulfurization and dust removal slurry entering the top cover 222 from the second air vent 2222 of the second liquid collection device 20 falls onto the guide plate 223, and then is guided to the outside of the top cover 222 by the guide plate 223 and falls into the liquid collection container 21 by gravity;
The flue gas is defogged through the third defogger 120;
The flue gas exits the exterior of the tower 30 from the flue gas outlet 32.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (10)
1. A liquid collecting device, comprising:
The liquid collecting device comprises a liquid collecting container (21), wherein the top of the liquid collecting container (21) is open to form a liquid inlet for liquid to enter the liquid collecting container (21), and a through hole is formed in the bottom of the liquid collecting container (21); and
The drainage device (22), drainage device (22) include trachea (221) and top cap (222), the lower extreme of trachea (221) sealed peg graft in the through-hole, the upper end of trachea (221) connect in top cap (222), the lower port of trachea (221) forms into first air vent (2221), be provided with second air vent (2222) and leakage fluid dram (2223) on top cap (222), trachea (221) with the inside of top cap (222) is formed with intercommunication first air vent (2221) with second air vent (2222) are in order to supply the first passageway of the gaseous circulation of the upper and lower both sides of liquid collection container (21), be provided with guide plate (223) in top cap (222), guide plate (223) are used for with by liquid guide of second air vent (2222) department entering extremely leakage fluid dram (2223) is in order to discharge top cap (222).
2. The liquid collecting device according to claim 1, wherein a plurality of through holes are formed in the bottom of the liquid collecting container (21), the flow diverter (22) is provided in a plurality of spaced-apart arrangement on the liquid collecting container (21), at least one of the through holes is communicated with the first channel of one flow diverter (22); and/or the number of the groups of groups,
The side wall of the liquid collecting container (21) is obliquely arranged from bottom to top outwards.
3. The liquid collecting device according to claim 1, wherein the top end of the flow diverter (22) is vertically higher than the top end of the liquid collecting container (21); and/or the number of the groups of groups,
The top cover (222) comprises a top wall (2224), side walls (2225) and a bottom wall (2226), an inner space is formed by surrounding the top wall, second ventilation openings (2222) are formed by opening two of the top wall (2224), liquid draining openings (2223) are formed by opening two of the opposite sides of the side walls (2225), mounting holes for the air pipes (221) to be inserted in a sealing mode are formed in the bottom wall (2226), the two air guiding plates (223) are arranged on the two inner sides of the side walls (2225) in a relative mode, gaps through which air passes are formed between the two air guiding plates (223), the air guiding plates (223) are arranged downwards in an inclined mode in the opposite directions, and the two air guiding plates (223) are arranged below the second ventilation openings (2222) one by one and correspond to the liquid draining openings (2223) one by one.
4. A desulfurizing and dedusting tower, comprising:
A tower (30);
the first sprayer (10) is arranged in the tower body (30) and is used for spraying desulfurization dust-removal slurry; and
A liquid collecting device (20) according to any one of claims 1 to 3, wherein the liquid collecting device (20) is arranged below the first sprayer (10) to collect the desulfurization dust-removal slurry sprayed out of the first sprayer (10) into the liquid collecting container (21).
5. The desulfurizing and dedusting tower according to claim 4, characterized in that the open edge of said liquid collecting container (21) is fitted to the inner wall of said tower body (30); and/or the number of the groups of groups,
The desulfurization dust removal tower still including set up in tray (40) in tower body (30), tower body (30) have flue gas entry (31) and flue gas export (32) that set gradually from bottom to top, first spray thrower (10) with collection liquid device (20) are located between flue gas entry (31) and flue gas export (32), tray (40) are located the below of flue gas entry (31).
6. The desulfurization and dust-removing tower according to claim 4 or 5, characterized in that the desulfurization and dust-removing tower further comprises a water film dust remover (50), the water film dust remover (50) being disposed below the spray opening of the first sprayer (10) to form a water film for dust removal on the surface of the water film dust remover (50) from the desulfurization and dust-removing slurry of the first sprayer (10); and/or the number of the groups of groups,
The desulfurization dust removal tower also comprises a liquid storage tank (60) communicated with the first sprayer (10) and a second sprayer (70) communicated with the liquid collecting container (21), and desulfurization dust removal slurry collected by the liquid collecting container (21) is sprayed into the tower body (30) downwards for the second time by the second sprayer (70).
7. The desulfurization and dust-removal tower according to claim 6, wherein the water film dust remover (50) comprises a supporting frame (51) and plastic fillers (52) arranged in the supporting frame (51) at intervals, a second channel for flue gas to flow through is formed inside the plastic fillers (52), and the water film can be formed on the surface of the plastic fillers (52); and/or the number of the groups of groups,
The desulfurization and dust removal tower also comprises a pipeline for communicating the liquid collecting container (21) with the second sprayer (70) and a transfer liquid box (80).
8. The desulfurization and dust-removal tower according to claim 7, characterized in that a plurality of scratches to which a water supply film is attached are formed on the surface of the plastic packing (52).
9. The desulfurization and dust-removal tower according to claim 8, further comprising another liquid collecting device (20) provided below the spray opening of the second sprayer (70) to collect desulfurization and dust-removal slurry sprayed from the second sprayer (70).
10. The desulfurization and dust-removal tower according to claim 9, further comprising a first demister (100), a second demister (110) and a third demister (120), wherein the first demister (100), one liquid collecting device (20), the water film dust collector (50), the first spray thrower (10), the second demister (110), the other liquid collecting device (20), the second spray thrower (70) and the third demister (120) are sequentially arranged from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410526554.9A CN118079574A (en) | 2024-04-29 | 2024-04-29 | Liquid collecting device and desulfurization dust removal tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410526554.9A CN118079574A (en) | 2024-04-29 | 2024-04-29 | Liquid collecting device and desulfurization dust removal tower |
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| Publication Number | Publication Date |
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| CN118079574A true CN118079574A (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410526554.9A Pending CN118079574A (en) | 2024-04-29 | 2024-04-29 | Liquid collecting device and desulfurization dust removal tower |
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| WO2021027342A1 (en) * | 2019-08-12 | 2021-02-18 | 南京凯盛国际工程有限公司 | Condensation type desulfurization system |
| CN215996186U (en) * | 2021-09-07 | 2022-03-11 | 福州卓达环保科技有限公司 | Desulfurization dust removal absorption tower with porous current equalizer |
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2024
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204865498U (en) * | 2015-06-30 | 2015-12-16 | 江西康翔环保有限公司 | Desulfurizing tower |
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| WO2021027342A1 (en) * | 2019-08-12 | 2021-02-18 | 南京凯盛国际工程有限公司 | Condensation type desulfurization system |
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