CN105107311B - Desulfurization device - Google Patents
Desulfurization device Download PDFInfo
- Publication number
- CN105107311B CN105107311B CN201510505956.1A CN201510505956A CN105107311B CN 105107311 B CN105107311 B CN 105107311B CN 201510505956 A CN201510505956 A CN 201510505956A CN 105107311 B CN105107311 B CN 105107311B
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- China
- Prior art keywords
- ammonia
- housing
- helicla flute
- rotating disk
- desulphurization plant
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Abstract
The present invention provides a desulfurization device, so as to remove sulphur dioxide and soot in a coal fired flue gas. The desulfurization device comprises a laterally-disposed cylindrical housing. Ammonia water is accommodated on a lower side in housing. A drive shaft is disposed in an axial direction of the housing. Multiple filter turntables are disposed side by side on the drive shaft. A helical groove is disposed along a turning surface of each filter turntable. A filter mesh is disposed at at least one side surface of the helical groove. An outermost opening of the helical groove can be immersed below the liquid surface of the ammonia water. According to the desulfurization device provided by the invention, the filter turntables each with a helical groove structure are used, so that the contact area between the fuel gas and the ammonia water is greatly increased; and the soot removal efficiency is increased. Without the need of an additional cleaning apparatus, regular shutdowns for fouling cleaning can be further avoided, so that the desulfurization device can operate continuously and efficiently, thereby reducing the amount of consumed ammonia water and reducing costs.
Description
Technical field
The present invention relates to a kind of advanced purification technology of the industry coal-fired flue-gas emission such as electric power, chemical industry, metallurgy, manufacture,
Particularly to a kind of desulphurization plant removing the sulfur in coal-fired flue-gas.
Background technology
Electric power, chemical industry, metallurgy, manufacturing coal-fired flue-gas emission very big for the impact of atmospheric pollution.Wherein, fire
The harmful substances such as the flue dust contained by flue-gas, sulfur dioxide, nitrogen oxides are the roots causing atmospheric pollution, acid rain and greenhouse effect
One of source.At present, China has carried out large-scale flue gas desulfurization project, but fume emission still can not meet existing mark
Alignment request, still needs to administer further.
Existing desulfurization technology usually adopts in desulfurization top of tower machine for casing-in or applying cover to book tool demister, has certain removal to carrying Gypsum Fibrosum
Effect, but mechanical demister long-play generally existing hardened, clogging it is impossible to steady in a long-term run, and causes stone
The little droplet of cream serosity enters air with fume emission.In addition, the technique of Wet Flue Gas Desulfurization Technique comparative maturity is calcium method and ammonia process, its
In, desulfuration efficiency can not possibly unrestrictedly improve calcium method sulfur removal technology in theory, and ammonia process of desulfurization efficiency can reach 100%, but
The ammonia process of desulfurization has that operational efficiency is not high.
Cn 201404768 y discloses a kind of desulfurizing tower for the ammonia process of desulfurization, and its background section takes off for calcium method
Sulfur and ammonia-process desulfurization technique have carried out detailed analysis contrast, wherein refer to that the ammonia process of desulfurization can realize sulfur with respect to calcium method desulfurization
The comprehensive utilization of resource, ammonia utilize abundant desulfuration efficiency height, doctor solution consumption little and no slag and effluent and efficiency of utilization is high
Advantage.The prior art provides a kind of simple desulfurizing tower of structure, to realize coal-fired flue-gas using ammonia-process desulfurization technique
Desulfurizing and purifying.
But the desulphurization plant that existing ammonia-process desulfurization technique is adopted, however it remains flue gas contact with ammonia or ammonia
Dust accumulation in crystallization and flue gas that inefficiency, reaction generate affects the defect of desulfurized effect.For avoiding periodically shutting down clearly
Sprinkling equipment efficiency set by reason fouling is very low, and ammonia volume is big it is difficult to maintenance desulphurization plant continues Effec-tive Function.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of desulphurization plant, so that noted earlier ask is reduced or avoided
Topic.
For solving above-mentioned technical problem, the present invention proposes a kind of desulphurization plant, for removing the dioxy in coal-fired flue-gas
Change sulfur and flue dust, wherein, described desulphurization plant includes the housing of the cylinder type of a lateral arrangement；The inner lower of described housing
Accommodate ammonia, the axis direction along described housing is provided with a drive shaft, and described drive shaft has been arranged side by side multiple mistakes
Filter rotating disk, is provided with helicla flute along the described plane of rotation filtering rotating disk, at least one side of described spiral fluted is provided with filtration
Screen cloth, described spiral fluted outermost side opening can be immersed in below the liquid level of described ammonia.
Preferably, the direction of described spiral fluted outermost side opening is identical with the rotation direction of described filtration rotating disk.
Preferably, described spiral fluted cross section is spill.
Preferably, described housing has a first end and second end, and the top of described first end is provided with one
Smoke air inlet, the top at described second end is provided with a flue gas exhaust mouth.
Preferably, the bottom of described first end is provided with a discharge gate, and the bottom at described second end is provided with one and enters
Material mouth.
Preferably, the liquid level of described ammonia is located at the 1/4-1/3 height and position of described diameter of the housing.
The desulphurization plant of the present invention passes through using the filtration rotating disk with helical groove structure, substantially increases flue gas and ammonia
Contact area, improve efficiency of dust collection, can avoid further periodically stopping in the case of need not additionally arranging cleaning device
Machine cleaning fouling, so that the desulphurization plant of the present invention can continue Effec-tive Function, has been saved ammonia volume, has been reduced cost.
Brief description
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein,
Fig. 1 is shown that a kind of structural representation of desulphurization plant of a specific embodiment according to the present invention；
The a-a sectional view of desulphurization plant shown in Fig. 1 that Fig. 2 shows；
Fig. 3 is shown that the plane of the filtration rotating disk for desulphurization plant of a specific embodiment according to the present invention is shown
It is intended to；
The b-b sectional view of rotating disk is filtered shown in Fig. 3 that Fig. 4 shows.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now comparison brief description this
Bright specific embodiment.Wherein, identical part adopts identical label.
Fig. 1 is shown that a kind of structural representation of desulphurization plant of a specific embodiment according to the present invention, and Fig. 2 shows
The a-a sectional view of desulphurization plant shown in the Fig. 1 showing, desulphurization plant shown in Fig. 1-2 can be used for electric power, chemical industry, metallurgy, manufacture
Carry out desulfurization dust separation process etc. industry coal-fired flue-gas emission, be particularly suited for removing the titanium dioxide in coal-fired flue-gas 100
Sulfur and flue dust.
As illustrated, described desulphurization plant includes the housing 1 of the cylinder type of a lateral arrangement, the inner lower of housing 1
Accommodate ammonia 2, the axis direction along housing 1 is provided with a drive shaft 3, drive shaft 3 has been arranged side by side multiple filtration and has turned
Disk 4, in Fig. 1 display be set side by side with four filtration rotating disks 4, its concrete structure shows in figures 3-4, after will be further to this
Describe in detail.
Housing 1 has a first end 11 and second end 12, and the top of first end 11 is provided with a flue gas air inlet
Mouth 111, the top at the second end 12 is provided with a flue gas exhaust mouth 121.Coal-fired flue-gas 100 enter shell from smoke air inlet 111
Body 1, through filtration rotating disk 4 multiple times of filtration purified treatment, the gas after purification after discharge through flue gas exhaust mouth 121.
The bottom of first end 11 is provided with a discharge gate 112, and the bottom at the second end 12 is provided with a charging aperture 122.
The ammonia 2 of the bottom of housing 1 with filter rotating disk 4 rotation to filter rotating disk 4 infiltrate, in order to coal-fired flue-gas 100
Sulfur dioxide reacts, and product dissolves or is slipped in ammonia 2, is supplemented by the circulation of charging aperture 122 and discharge gate 112, makes
The ammonia 2 obtaining in housing 1 keeps available concentration, will dissolve material simultaneously and discharge housing 1.That is, can be by charging during use
Mouth 122 persistently supplements certain density ammonia, extracts the used ammonia 2 housing 1 out from discharge gate 112 simultaneously and carried out
Remaining ammonia can be inputted housing 1 from charging aperture 122 after removing product therein and recycle by filter.
Particularly, in the present invention, the charging aperture 122 for ammonia 2 turnover and the set location of discharge gate 112 and coal-fired cigarette
The position of the smoke air inlet 111 of gas 100 and flue gas exhaust mouth 121 is contrary, this is because smoke air inlet 111 position
The content of sulfur dioxide and flue dust is maximum, and the product that smoke air inlet 111 position is assembled is most, therefore in smoke air inlet
The lower section of 111 positions arranges discharge gate 112 and can facilitate discharge and the removal of product with shortest route, reduces ammonia
Consumption, improves efficiency, reduces cost.If the position setting of charging aperture 122 and discharge gate 112 is exchanged, substantial amounts of anti-
Product is answered to need to flow through whole shell length, ammonia 2 is readily able to muddy concentration to be reduced, the removal efficiency of sulfur dioxide and flue dust will
Can reduce, the consumption of ammonia will increase, and cost also can accordingly increase.
In a specific embodiment, the liquid level of ammonia 2 is located at the 1/4-1/3 height and position of housing 1 diameter.That is, if
The liquid level of ammonia 2 is too low, then the amount being available for the ammonia of reaction very little, will be unfavorable for the removal of pollutant, and very few
Ammonia can make ammonia limited to the conveying capacity of product and flue dust, lead to solid product to be piled up and be difficult in the housing
Remove.On the other hand, if the liquid level of ammonia 2 is too high, the circulation passage of coal-fired flue-gas can diminish, and efficiency of dust collection can drop
Low, the rotating disk 4 that filters being simultaneously used for dedusting is immersed in and partly can increase resistance too much in ammonia 2, leads to drive and filters rotating disk 4
Power of motor and energy consumption increase, be unfavorable for the optimization of cost.It is base for the restriction of the liquid level of ammonia 2 in the present embodiment
Columnar structured, the housing of the optimized screening carrying out in the structure of the desulphurization plant of the present invention, this numerical range and housing 1
Diameter, the setting of the axial direction arrangement and drive shaft 3 filtering rotating disk 4 have close contact, are the preferred models of a synthesization
Enclose, not general knowledge known in this field, be not that those skilled in the art are easy for thinkable, possess on patent law purposes
Creative.
Fig. 3 is shown that the plane of the filtration rotating disk for desulphurization plant of a specific embodiment according to the present invention is shown
It is intended to；The b-b sectional view of rotating disk is filtered, as shown in Figure 3-4, the filtration rotating disk 4 of the present embodiment is overall shown in Fig. 3 that Fig. 4 shows
Upper disc-shaped structure, is provided with helicla flute 41 along the plane of rotation filtering rotating disk 4, at least one side of helicla flute 41 was provided with
Filter screen cloth 42, the outermost side opening 411 of helicla flute 41 can be immersed in below the liquid level of ammonia 2.
Specifically, the rotating disk 4 that filters of the present invention is coiled into spiral shell by cross section for the resistant material of the strip of spill
Rotation shape (being for example made up of fiberglass or carbon fiber), thus define helicla flute 41, preferably in helicla flute 41 along flue gas 100
The far-end side of flow direction is provided with filter net cloth 42 (as shown in Figure 4), is beneficial to flue gas 100 and is filtered the overall pocket of rotating disk 4
Live, certainly, it will be appreciated by those skilled in the art that filter net cloth 42 can also all be arranged in the both sides of helicla flute 41, in order to increase
Big sulfur dioxide and the response area of ammonia, shortcoming is that the flow resistance of flue gas 100 can become big, and efficiency of dust collection can reduce, energy consumption
Also can accordingly increase, but removal effect can be better.
When dedusting uses, drive shaft 3 drives filtration rotating disk 4 to rotate, and makes the outermost side opening of helicla flute 41
411 direction is identical with the rotation direction filtering rotating disk 4, and the outermost side opening 411 due to helicla flute 41 can be immersed in ammonia 2
Below liquid level, therefore, when the outermost side opening 411 of helicla flute 41 is immersed in ammonia 2 and then produces ammonia 2, one
Stock ammonia 2 will be along helicla flute 41 spiral to the center flow filtering rotating disk 4, away from the ammonia (line at the center filtering rotating disk 4
Speed is bigger) can be attached in helicla flute 41 under the influence of centrifugal force, but more it is proximate to filter the ammonia at the center of rotating disk 4
Water (linear velocity is less), its centrifugal force is less, thus turn to top ammonia will from filter rotating disk 4 center come down in torrents and
Under, with filter rotating disk 4 rotation, ammonia continually to filter rotating disk 4 center flow, and from filter rotating disk 4
The heart flows downward, thus the whole filter net cloth 42 filtering rotating disk 4 of infiltration.The said structure of the present invention substantially increase flue gas with
The contact area of ammonia, improves efficiency of dust collection.
The filter net cloth 42 being infiltrated by ammonia 3 completely can continue to react with the sulfur dioxide in coal-fired flue-gas 100, simultaneously
Moistening filter net cloth 42 can also remove the flue dust in flue gas 100.The material that reaction generates is attached on filter net cloth 42, very
Easily it is thrown out of under the rotation filtering rotating disk 4, the ammonia quilt of lower section can also be washed into simultaneously with the ammonia pouring down
Take away, thus avoiding reaction product and dust accumulation on filter net cloth 42 to affect desulfurized effect, and can be without volume
Avoid further in the case of outer setting cleaning device periodically shutting down cleaning fouling so that the desulphurization plant of the present invention can continue
Effec-tive Function, has saved ammonia volume, reduces cost.
In order to avoid flue gas 100 is from filtering the spilling of the gap between rotating disk 4 and housing 1, in another specific embodiment,
As shown in Figure 1-2, neighbouring each filter the both sides of rotating disk 4 parallel to filter rotating disk 4 be provided with two ring baffles 5 it is preferable that
The height that ring baffle 5 is stretched out by the inner surface of housing 1 all can block filtering the gap between rotating disk 4 and housing 1.Enter one
Preferably, ring baffle 5 extends to the inside of housing 1 step along the inner surface of housing 1, and the lower end extension of ring baffle 5 ends in
5-10 centimetre below the liquid level of ammonia 2.I.e., in the above-described embodiments, the ring baffle 5 being arranged using both sides is to filtration rotating disk 4
Gap and housing 1 between is sealed, simultaneously as the ammonia 2 of the lower section of housing 1 itself provides water seal, therefore annular
Baffle plate 5 lower end too many can end in below the liquid level of ammonia 2 5-10 centimetre i.e. it is only necessary to extend without extending to below liquid level
Can, material and cost can be saved.Particularly, if ring baffle 5 is whole loop configuration, that is, extend to the bottom of housing 1
Ring baffle 5 be all the state stretched out from inner surface, then the loop configuration projecting from the bottom of housing 1 can affect the stream of ammonia
Dynamic property, and solid matter also can be deposited in and be difficult to remove near loop configuration, prominent structure be also unfavorable for the later stage maintenance,
The work such as cleaning, the ring baffle 5 therefore in the above embodiment of the present invention particularly preferably needs to extend and under liquid level
Square 5-10 centimetre.
In order to improve the intensity filtering rotating disk 4, in another specific embodiment, as shown in figure 3, helicla flute 41 is at least
One side is provided with the multiple connection reinforcement parts 6 extending radially outward from drive shaft 3, in order to clearly show that in Fig. 4, not aobvious
Show connection reinforcement part 6.Certainly, add it will be appreciated by those skilled in the art that connection can also all be arranged in the both sides of helicla flute 41
To improve structural strength, shortcoming is that the flow resistance of flue gas 100 can become larger to strong part 6, and efficiency of dust collection can reduce, and filters rotating disk
4 weight can become big, and energy consumption also can accordingly increase.
In also specific embodiment, as shown in Figure 3-4, the end position of each connection reinforcement part 6 is provided with
One metallic brush 61, the outermost end of metallic brush 61 is equal apart from the distance of drive shaft 3.The setting of metallic brush 61 is attached for striking off
, on the inner surface of housing 1, the solid matters such as the flue dust sticking to inner surface are thrown away by filtration rotating disk 4, feed them into ammonia 2
It is cleared out.The structural strength of the end position of reinforcement 6 is larger, be easy to metallic brush 61 be arranged on filtration rotating disk 4 on unlikely
In malformation.Further, since filtering rotating disk 4 is helical structure, its external diameter is not wait it is therefore desirable to setting makes metallic brush
61 outermost end apart from drive shaft 3 distance equal so that metallic brush 61 the inner surface apart from housing 1 for the outermost end distance phase
Deng interference so just will not be produced, not having the dead angle that metallic brush 61 cannot touch exists, be conducive to the clear of attachment simultaneously
Reason.The attachment part got off is cleared up from the inner surface of housing 1 and falls directly into ammonia, a part adheres to metallic brush 61
On, rotate in ammonia with metallic brush 61 and washed away by ammonia.In addition, the setting of metallic brush 61 also produces to ammonia stirring
Mix effect, prevent the long-time precipitation of solid matter from cannot flow and take away.
It will be appreciated by those skilled in the art that although the present invention is to be described according to the mode of multiple embodiments,
It is that not each embodiment only comprises an independent technical scheme.For the sake of in description, so narration is just for the sake of understanding,
Description should be understood by those skilled in the art as an entirety, and by involved technical scheme in each embodiment
Regard as and can be mutually combined into the mode of different embodiments to understand protection scope of the present invention.
The foregoing is only the schematic specific embodiment of the present invention, be not limited to the scope of the present invention.Any
Those skilled in the art, the equivalent variations made on the premise of the design without departing from the present invention and principle, modification and combination,
The scope of protection of the invention all should be belonged to.
Claims (5)
1. a kind of desulphurization plant, for removing the sulfur dioxide in coal-fired flue-gas (100) and flue dust it is characterised in that described take off
Sulfur equipment includes the housing (1) of the cylinder type of a lateral arrangement；The inner lower of described housing (1) accommodates ammonia (2), edge
The axis direction of described housing (1) is provided with a drive shaft (3), described drive shaft (3) has been arranged side by side multiple filtration and has turned
Disk (4), is provided with helicla flute (41) along the described plane of rotation filtering rotating disk (4), the cross section of described helicla flute (41) is spill,
The longitudinal section of described helicla flute (41) is helical form, and at least one side of described helicla flute (41) is provided with filter net cloth
(42), the outermost side opening (411) of described helicla flute (41) can be immersed in below the liquid level of described ammonia (2).
2. desulphurization plant as claimed in claim 1 is it is characterised in that the outermost side opening (411) of described helicla flute (41)
Direction is identical with the rotation direction of described filtration rotating disk (4).
3. the desulphurization plant as described in one of claim 1-2 is it is characterised in that described housing (1) has a first end
(11) and one the second end (12), the top of described first end (11) is provided with a smoke air inlet (111), described second end
(12) top is provided with a flue gas exhaust mouth (121).
4. the desulphurization plant as described in one of claim 1-2 is it is characterised in that the bottom of described first end (11) is provided with one
Individual discharge gate (112), the bottom of described second end (12) is provided with a charging aperture (122).
5. the desulphurization plant as described in one of claim 1-2 is it is characterised in that the liquid level of described ammonia (2) is located at described shell
The 1/4-1/3 height and position of body (1) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505956.1A CN105107311B (en) | 2015-08-18 | 2015-08-18 | Desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505956.1A CN105107311B (en) | 2015-08-18 | 2015-08-18 | Desulfurization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105107311A CN105107311A (en) | 2015-12-02 |
| CN105107311B true CN105107311B (en) | 2017-01-18 |
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ID=54655555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510505956.1A Expired - Fee Related CN105107311B (en) | 2015-08-18 | 2015-08-18 | Desulfurization device |
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| Country | Link |
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| CN (1) | CN105107311B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893987A (en) * | 2019-01-25 | 2019-06-18 | 马鞍山市博望区久保机械配件加工厂 | A kind of rotary-type flue gas processing device and processing method |
| CN111643977B (en) * | 2020-06-15 | 2021-12-03 | 烟台润达垃圾处理运营有限公司 | Power plant waste incineration flue gas grading purification treatment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2899915Y (en) * | 2006-03-02 | 2007-05-16 | 杨顺德 | Continuous self exciting type flue dust removing desulfurizing device |
| CN203525491U (en) * | 2013-09-24 | 2014-04-09 | 浙江亚特电器有限公司 | Water spraying device |
| CN203620463U (en) * | 2013-12-20 | 2014-06-04 | 陈荣志 | Centrifugal spray dust catcher |
| CN103977696A (en) * | 2014-05-16 | 2014-08-13 | 山西清泽环境科技有限公司 | Spray absorption tower suitable for coal-fired boiler flue gas desulfurization and denitrification |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100763276B1 (en) * | 2006-08-28 | 2007-10-04 | 손호진 | Method for purifying the air using spiral pipe |
-
2015
- 2015-08-18 CN CN201510505956.1A patent/CN105107311B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2899915Y (en) * | 2006-03-02 | 2007-05-16 | 杨顺德 | Continuous self exciting type flue dust removing desulfurizing device |
| CN203525491U (en) * | 2013-09-24 | 2014-04-09 | 浙江亚特电器有限公司 | Water spraying device |
| CN203620463U (en) * | 2013-12-20 | 2014-06-04 | 陈荣志 | Centrifugal spray dust catcher |
| CN103977696A (en) * | 2014-05-16 | 2014-08-13 | 山西清泽环境科技有限公司 | Spray absorption tower suitable for coal-fired boiler flue gas desulfurization and denitrification |
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| CN105107311A (en) | 2015-12-02 |
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