CN105056739A - Desulfuration and dedusting equipment - Google Patents
Desulfuration and dedusting equipment Download PDFInfo
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- CN105056739A CN105056739A CN201510507113.5A CN201510507113A CN105056739A CN 105056739 A CN105056739 A CN 105056739A CN 201510507113 A CN201510507113 A CN 201510507113A CN 105056739 A CN105056739 A CN 105056739A
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- ammoniacal liquor
- rotating disk
- removing equipment
- housing
- helicla flute
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Abstract
The invention discloses desulfuration and dedusting equipment which is used for removing sulfur dioxide and smoke dust in coal-fired flue gas. The desulfuration and dedusting equipment comprises a horizontal cylindrical casing, wherein ammonia water is accommodated in the lower side of the inner part of the casing; a drive shaft is arranged in the axis direction of the casing; a plurality of filtering rotary discs are arranged on the drive shaft side by side; spiral grooves are formed along the rotating surfaces of the filtering rotary discs; filter screen cloth is arranged on at least one side surface of each spiral groove; a plurality of connection reinforcement pieces radially extending outwards from the drive shaft are arranged on at least one side surface of each spiral groove. According to the desulfuration and dedusting equipment, through the adoption of the filtering rotary discs with the spiral groove structures, the contact area between flue gas and ammonia water is greatly enlarged, the dedusting efficiency is improved, and the periodical stopping for cleaning scale can be further avoided in the situation that a cleaning device is not required to be additionally arranged, so that the desulfuration and dedusting equipment can realize continuous and efficient operation, the use amount of ammonia water is reduced, and the cost is reduced.
Description
Technical field
The present invention relates to the advanced purification technology of the industry coal-fired flue-gas emissions such as a kind of electric power, chemical industry, metallurgy, manufacture, particularly a kind of desulfurating dust-removing equipment removing sulphur in coal-fired flue-gas and flue dust.
Background technology
The coal-fired flue-gas emission of electric power, chemical industry, metallurgy, manufacturing is very big for the impact of atmosphere pollution.Wherein, the harmful substances such as the flue dust contained by coal-fired flue-gas, sulfur dioxide, nitrogen oxide cause one of the root of atmosphere pollution, acid rain and greenhouse effects.At present, China has carried out large-scale flue gas desulfurization project, but fume emission still can not meet current standard requirement, still needs further improvement.
Existing desulfur technology usually adopts and installs mechanical demister additional at desulfurizing tower top, certain removal effect is had to carrying gypsum, but mechanical demister long-play ubiquity harden, clogging, steady in a long-term cannot run, cause the little droplet of gypsum slurries to enter air with fume emission.In addition, the technique of Wet Flue Gas Desulfurization Technique comparative maturity is calcium method and ammonia process, and wherein, calcium method sulfur removal technology in theory desulfuration efficiency can not unrestrictedly improve, and ammonia process of desulfurization efficiency can reach 100%, but the ammonia process of desulfurization exists the not high problem of operational efficiency.
CN201404768Y discloses a kind of desulfurizing tower for the ammonia process of desulfurization, its background technology part has carried out detailed analysis contrast for the desulfurization of calcium method and ammonia-process desulfurization technique, wherein mentions that the ammonia process of desulfurization can realize the comprehensive utilization of Sulphur ressource relative to calcium method desulfurization, ammonia utilizes that abundant desulfuration efficiency is high, doctor solution consumption is little and without slag and effluent and the high advantage of efficiency of utilization.The prior art provides the simple desulfurizing tower of a kind of structure, with the desulfurizing and purifying utilizing ammonia-process desulfurization technique to realize coal-fired flue-gas.
But the desulfurating dust-removing equipment that existing ammonia-process desulfurization technique adopts, the contacting efficiency that still there is flue gas and ammoniacal liquor or ammonia is low, react the crystallization and flue gas that generate in dust accumulation affect the defect of desulfurized effect.For avoiding the sprinkling equipment efficiency set by regularly shutdown cleaning fouling very low, ammonia volume is large, is difficult to maintain desulfurating dust-removing equipment and continues Effec-tive Function.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of desulfurating dust-removing equipment, to reduce or to avoid problem noted earlier.
For solving the problems of the technologies described above, the present invention proposes a kind of desulfurating dust-removing equipment, for removing sulfur dioxide in coal-fired flue-gas and flue dust, wherein, described desulfurating dust-removing equipment comprises the housing of the cylinder type of a lateral arrangement; The inner lower of described housing accommodates ammoniacal liquor, axis direction along described housing is provided with a driving shaft, described driving shaft is arranged side by side multiple filtration rotating disk, plane of rotation along described filtration rotating disk is provided with helicla flute, at least one side of described spiral fluted is provided with filter net cloth, and described spiral fluted outermost opening can be immersed in below the liquid level of described ammoniacal liquor; At least one side of described spiral fluted is provided with the multiple connection reinforcement parts radiating extension from described driving axial.
Preferably, described spiral fluted outermost opening towards 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 a smoke air inlet, and the top of 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 of described second end is provided with a charging aperture.
Preferably, the liquid level of described ammoniacal liquor is positioned at the 1/4-1/3 height and position of described diameter of the housing.
Desulfurization and dedusting of the present invention has the filtration rotating disk of helical groove structure by adopting; substantially increase the contact area of flue gas and ammoniacal liquor; improve efficiency of dust collection; can avoid further regularly shutting down cleaning fouling when without the need to additionally arranging cleaning device; desulfurization and dedusting of the present invention is made to continue Effec-tive Function; save ammonia volume, reduce cost.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 display be the structural representation of a kind of desulfurating dust-removing equipment according to a specific embodiment of the present invention;
The A-A sectional view of desulfurating dust-removing equipment shown in Fig. 1 of Fig. 2 display;
Fig. 3 display be the floor map of the filtration rotating disk for desulfurating dust-removing equipment according to a specific embodiment of the present invention;
The B-B sectional view of rotating disk is filtered shown in Fig. 3 of Fig. 4 display.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.Wherein, identical parts adopt identical label.
Fig. 1 display be the structural representation of a kind of desulfurating dust-removing equipment according to a specific embodiment of the present invention, the A-A sectional view of desulfurating dust-removing equipment shown in Fig. 1 of Fig. 2 display, desulfurating dust-removing equipment shown in Fig. 1-2 can be used for carrying out desulfurization dust separation process to industry coal-fired flue-gas emissions such as electric power, chemical industry, metallurgy, manufactures, is particularly useful for removing the sulfur dioxide in coal-fired flue-gas 100 and flue dust.
As shown in the figure, described desulfurating dust-removing equipment comprises the housing 1 of the cylinder type of a lateral arrangement, the inner lower of housing 1 accommodates ammoniacal liquor 2, axis direction along housing 1 is provided with a driving shaft 3, driving shaft 3 is arranged side by side multiple filtration rotating disk 4, in Fig. 1 display be set side by side with four filtration rotating disks 4, its concrete structure display in figures 3-4, after will further describe this.
Housing 1 has a first end 11 and second end 12, and the top that the top of first end 11 is provided with a smoke air inlet 111, second end 12 is provided with a flue gas exhaust mouth 121.Coal-fired flue-gas 100 enters housing 1 from smoke air inlet 111, and through filtering the multiple times of filtration purified treatment of rotating disk 4, the gas after purification is discharged finally by flue gas exhaust mouth 121.
The bottom that the bottom of first end 11 is provided with a discharge gate 112, second end 12 is provided with a charging aperture 122.The ammoniacal liquor 2 of the bottom of housing 1 infiltrates filtration rotating disk 4 along with the rotation of filtering rotating disk 4, in order to react with the sulfur dioxide of coal-fired flue-gas 100, product dissolves or is slipped in ammoniacal liquor 2, supplemented by the circulation of charging aperture 122 and discharge gate 112, make the ammoniacal liquor 2 in housing 1 keep available concentration, material will be dissolved simultaneously and discharge housing 1.Namely, can continue to supplement certain density ammoniacal liquor by charging aperture 122 during use, the used ammoniacal liquor 2 simultaneously extracted out housing 1 from discharge gate 112 filters, and remaining ammoniacal liquor can be inputted housing 1 from charging aperture 122 and recycle after removing product wherein.
Especially, in the present invention, the charging aperture 122 passed in and out for ammoniacal liquor 2 and the setting position of discharge gate 112 are contrary with the position of the smoke air inlet 111 of coal-fired flue-gas 100 and flue gas exhaust mouth 121, this is because the sulfur dioxide of smoke air inlet 111 position and the content of flue dust maximum, the product that smoke air inlet 111 position is assembled is maximum, therefore discharge and the removal that discharge gate 112 can facilitate to shortest route product is set in the below of smoke air inlet 111 position, reduce the consumption of ammoniacal liquor, improve efficiency, reduce cost.If the position of charging aperture 122 and discharge gate 112 arranges and exchanges, then a large amount of product needs to flow through whole shell length, and ammoniacal liquor 2 will be easy to muddy concentration to be reduced, and the removal efficiency of sulfur dioxide and flue dust will reduce, the consumption of ammoniacal liquor will increase, and cost also can increase accordingly.
In a specific embodiment, the liquid level of ammoniacal liquor 2 is positioned at the 1/4-1/3 height and position of housing 1 diameter.If that is the liquid level of ammoniacal liquor 2 is too low, then can will be very little for the amount of ammoniacal liquor of reaction, be unfavorable for the removal of pollutant, and very few ammoniacal liquor can make the conveying capacity of ammoniacal liquor to product and flue dust limited, cause solid product to be piled up and be difficult in the housing remove.On the other hand, if the liquid level of ammoniacal liquor 2 is too high, then the circulation passage of coal-fired flue-gas can diminish, efficiency of dust collection can reduce, the part be simultaneously immersed in ammoniacal liquor 2 for the filtration rotating disk 4 of dedusting can increase resistance too much, cause driving the power of motor of filtration rotating disk 4 and energy consumption to increase, be unfavorable for the optimization of cost.The optimized screenings carried out based on the structure of desulfurating dust-removing equipment of the present invention for the restriction of the liquid level of ammoniacal liquor 2 in the present embodiment, columnar structured, the axially-aligned of diameter of the housing, filtration rotating disk 4 of this number range and housing 1 and the setting of driving shaft 3 have and contact closely, it is the preferable range of a synthesization, not general knowledge known in this field, neither those skilled in the art be easy to just thinkable, possess the creativeness on patent law purposes.
Fig. 3 display be the floor map of the filtration rotating disk for desulfurating dust-removing equipment according to a specific embodiment of the present invention; The B-B sectional view of rotating disk is filtered shown in Fig. 3 of Fig. 4 display, as shown in Figure 3-4, the filtration rotating disk 4 of the present embodiment is on the whole in disk-like structure, the plane of rotation filtering rotating disk 4 is provided with helicla flute 41, at least one side of helicla flute 41 is provided with filter net cloth 42, and the outermost opening 411 of helicla flute 41 can be immersed in below the liquid level of ammoniacal liquor 2.
Specifically, filtration rotating disk 4 of the present invention is that the resistant material of the strip of spill is coiled into helical form (being such as made up of fiberglass or carbon fiber) by cross section, thus define helicla flute 41, preferably at helicla flute 41, the far-end side of the flow direction of flue gas 100 is provided with filter net cloth 42 (as shown in Figure 4), be beneficial to flue gas 100 be filtered rotating disk 4 entirety and catch, certainly, those skilled in the art are to be understood that, also filter net cloth 42 can be all set in the both sides of helicla flute 41, in order to increase the response area of sulfur dioxide and ammoniacal liquor, shortcoming is that the flow resistance of flue gas 100 can become large, efficiency of dust collection can reduce, energy consumption also can increase accordingly, but removal effect can be more better.
When dedusting uses, driving shaft 3 drives filtration rotating disk 4 to rotate, and make the outermost opening 411 of helicla flute 41 towards identical with filtering the rotation direction of rotating disk 4, outermost opening 411 due to helicla flute 41 can be immersed in below the liquid level of ammoniacal liquor 2, therefore, whenever the outermost opening 411 of helicla flute 41 be immersed in ammoniacal liquor 2 then produce ammoniacal liquor 2 time, one ammoniacal liquor 2 will filter the center flow of rotating disk 4 along helicla flute 41 screw, ammoniacal liquor (linear velocity is larger) away from the center of filtering rotating disk 4 can be attached in helicla flute 41 under the influence of centrifugal force, but near the ammoniacal liquor (linear velocity is less) at the center of filtration rotating disk 4, its centrifugal force is less, thus the ammoniacal liquor turning to top will pour down from the center of filtering rotating disk 4, along with the rotation of filtering rotating disk 4, ammoniacal liquor is continually to the center flow of filtering rotating disk 4, and flow downward from the center of filtering rotating disk 4, thus infiltrate the filter net cloth 42 of whole filtration rotating disk 4.Said structure of the present invention substantially increases the contact area of flue gas and ammoniacal liquor, improves efficiency of dust collection.
Completely can be continued to react with the sulfur dioxide in coal-fired flue-gas 100 by the filter net cloth 42 that ammoniacal liquor 3 infiltrates, moistening filter net cloth 42 also can remove the flue dust in flue gas 100 simultaneously.The material that reaction generates is attached on filter net cloth 42; be easy to be thrown out of under the rotation of filtering rotating disk 4; the ammoniacal liquor that simultaneously also can be washed into below along with the ammoniacal liquor poured down is pulled away; thus avoid reaction product and dust accumulation on filter net cloth 42 and affect desulfurized effect; and can avoid further regularly shutting down cleaning fouling when without the need to additionally arranging cleaning device; desulfurating dust-removing equipment of the present invention is made to continue Effec-tive Function; save ammonia volume, reduce cost.
In order to avoid flue gas 100 overflows from the gap of filtering between rotating disk 4 and housing 1, in another specific embodiment, as shown in Figure 1-2, the both sides of contiguous each filtration rotating disk 4 are parallel to filtration rotating disk 4 and are provided with two ring baffles 5, preferably, the gap of filtering between rotating disk 4 and housing 1 can all be blocked by the height that ring baffle 5 is stretched out by the inner surface of housing 1.Further preferably, ring baffle 5 extends along the inner surface of housing 1 to the inside of housing 1, the lower end of ring baffle 5 extend end in ammoniacal liquor 2 liquid level below 5-10 centimetre.Namely, in the above-described embodiments, the ring baffle 5 adopting both sides to arrange seals the gap of filtering between rotating disk 4 and housing 1, simultaneously, because the ammoniacal liquor 2 of the below of housing 1 itself provides water seal, therefore ring baffle 5 lower end can to extend to below liquid level too many, only need to extend end in ammoniacal liquor 2 liquid level below 5-10 centimetre, material and cost can be saved.Especially, if ring baffle 5 is whole loop configuration, namely the ring baffle 5 extending to the bottom of housing 1 is all the state of stretching out from inner surface, the loop configuration of then giving prominence to from the bottom of housing 1 can affect the mobility of ammoniacal liquor, and solid matter also can be deposited in and to be difficult near loop configuration remove, outstanding structure is also unfavorable for the work such as maintenance, cleaning in later stage, the ring baffle 5 therefore in the above embodiment of the present invention particularly preferably need to extend and below liquid level 5-10 centimetre.
In order to improve the intensity of filtering rotating disk 4, in another specific embodiment, as shown in Figure 3, at least one side of helicla flute 41 is provided with and outwards radiates from driving shaft 3 the multiple connection reinforcement parts 6 extended, in order to clear expression in Fig. 4, do not show connection reinforcement part 6.Certainly, it will be appreciated by those skilled in the art that and also connection reinforcement part 6 can be all set to improve structural strength in the both sides of helicla flute 41, shortcoming is that the flow resistance of flue gas 100 can become larger, efficiency of dust collection can reduce, and the weight of filtering rotating disk 4 can become large, and energy consumption also can increase accordingly.
Also having in a specific embodiment, as shown in Figure 3-4, the end position of each connection reinforcement part 6 is provided with a metallic brush 61, and the distance of the outermost end distance driving shaft 3 of metallic brush 61 is equal.The setting of metallic brush 61 inner surface being attached to housing 1 is filtered rotating disk 4 throws away the solid matters such as the flue dust sticking to inner surface for striking off, and makes it to enter ammoniacal liquor 2 and be cleared out.The structural strength of the end position of reinforcement 6 is comparatively large, is convenient to metallic brush 61 and is arranged on to filter on rotating disk 4 and is unlikely to malformation.In addition, because filtration rotating disk 4 is helical structures, its external diameter does not wait, therefore need to arrange and make the distance of the outermost end of metallic brush 61 distance driving shaft 3 equal, make the distance of the inner surface of the outermost end of metallic brush 61 distance housing 1 equal, so just can not produce interference, not have the dead angle existence that metallic brush 61 cannot touch simultaneously, be conducive to the cleaning of attachment.Clear up an attachment part of getting off from the inner surface of housing 1 and directly fall into ammoniacal liquor, a part adheres on metallic brush 61, rotates and washed away by ammoniacal liquor along with metallic brush 61 in ammoniacal liquor.In addition, the setting of metallic brush 61 also produces stirring action to ammoniacal liquor, prevents from solid matter from precipitating for a long time cannot flowing taking away.
Although it will be appreciated by those skilled in the art that the present invention is described according to the mode of multiple embodiment, not each embodiment only comprises an independently technical scheme.So describe in description be only used to clear for the purpose of; description should integrally be understood by those skilled in the art, and regards technical scheme involved in each embodiment as the mode that mutually can be combined into different embodiment to understand protection scope of the present invention.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle, amendment and combination, all should belong to the scope of protection of the invention.
Claims (6)
1. a desulfurating dust-removing equipment, for removing sulfur dioxide in coal-fired flue-gas (100) and flue dust, it is characterized in that, described desulfurating dust-removing equipment comprises the housing (1) of the cylinder type of a lateral arrangement; The inner lower of described housing (1) accommodates ammoniacal liquor (2), axis direction along described housing (1) is provided with a driving shaft (3), described driving shaft (3) is arranged side by side multiple filtration rotating disk (4), plane of rotation along described filtration rotating disk (4) is provided with helicla flute (41), at least one side of described helicla flute (41) is provided with filter net cloth (42), and the outermost opening (411) of described helicla flute (41) can be immersed in below the liquid level of described ammoniacal liquor (2); At least one side of described helicla flute (41) is provided with outwards radiates from described driving shaft (3) the multiple connection reinforcement parts (6) extended.
2. desulfurating dust-removing equipment as claimed in claim 1, is characterized in that, the outermost opening (411) of described helicla flute (41) towards identical with the rotation direction of described filtration rotating disk (4).
3. the desulfurating dust-removing equipment as described in claim 1-2, is characterized in that, the cross section of described helicla flute (41) is spill.
4. the desulfurating dust-removing equipment as described in claim 1-3, it is characterized in that, described housing (1) has a first end (11) and second end (12), the top of described first end (11) is provided with a smoke air inlet (111), and the top of described second end (12) is provided with a flue gas exhaust mouth (121).
5. the desulfurating dust-removing equipment as described in one of claim 1-4, it is characterized in that, the bottom of described first end (11) is provided with a discharge gate (112), and the bottom of described second end (12) is provided with a charging aperture (122).
6. the desulfurating dust-removing equipment as described in one of claim 1-4, is characterized in that, the liquid level of described ammoniacal liquor (2) is positioned at the 1/4-1/3 height and position of described housing (1) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510507113.5A CN105056739B (en) | 2015-08-18 | 2015-08-18 | A kind of desulfurating dust-removing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510507113.5A CN105056739B (en) | 2015-08-18 | 2015-08-18 | A kind of desulfurating dust-removing equipment |
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| CN105056739A true CN105056739A (en) | 2015-11-18 |
| CN105056739B CN105056739B (en) | 2017-11-03 |
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| CN201510507113.5A Active CN105056739B (en) | 2015-08-18 | 2015-08-18 | A kind of desulfurating dust-removing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518592A (en) * | 2020-05-11 | 2020-08-11 | 宋青 | Coke oven gas desulfurizing tower |
| CN113731150A (en) * | 2021-09-01 | 2021-12-03 | 江苏力威环保科技有限公司 | Energy-concerving and environment-protective SOx/NOx control device |
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| CN1613543A (en) * | 2004-09-20 | 2005-05-11 | 安仲伟 | Smoke processor |
| CN2899915Y (en) * | 2006-03-02 | 2007-05-16 | 杨顺德 | Continuous self exciting type flue dust removing desulfurizing device |
| CN103463908A (en) * | 2013-08-25 | 2013-12-25 | 王立芳 | Dynamically centrifugal dust-removing desulfurizer |
| CN104368210A (en) * | 2014-08-18 | 2015-02-25 | 开县人人有余科技有限公司 | Air pollution collecting system using filtration windmill |
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2015
- 2015-08-18 CN CN201510507113.5A patent/CN105056739B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613543A (en) * | 2004-09-20 | 2005-05-11 | 安仲伟 | Smoke processor |
| CN2899915Y (en) * | 2006-03-02 | 2007-05-16 | 杨顺德 | Continuous self exciting type flue dust removing desulfurizing device |
| CN103463908A (en) * | 2013-08-25 | 2013-12-25 | 王立芳 | Dynamically centrifugal dust-removing desulfurizer |
| CN104368210A (en) * | 2014-08-18 | 2015-02-25 | 开县人人有余科技有限公司 | Air pollution collecting system using filtration windmill |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518592A (en) * | 2020-05-11 | 2020-08-11 | 宋青 | Coke oven gas desulfurizing tower |
| CN111518592B (en) * | 2020-05-11 | 2021-08-24 | 新疆金晖兆丰焦化有限公司 | Coke oven gas desulfurization method |
| CN113731150A (en) * | 2021-09-01 | 2021-12-03 | 江苏力威环保科技有限公司 | Energy-concerving and environment-protective SOx/NOx control device |
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| CN105056739B (en) | 2017-11-03 |
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Effective date of registration: 20170927 Address after: 551201 Guizhou Longli County, Qiannan Buyei and Miao Autonomous Prefecture, hi tech Industrial Park Applicant after: GUIZHOU CHUANGQI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 551200 Guizhou Province, Qiannan Buyei and Miao Autonomous Prefecture North Longli County Industrial Park Applicant before: GUIZHOU LONGLI CHUANGQI EQUIPMENT MANUFACTURING Co.,Ltd. |
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Denomination of invention: A desulfurization and dust removal equipment Effective date of registration: 20230911 Granted publication date: 20171103 Pledgee: Guizhou Longli Rural Commercial Bank Co.,Ltd. Pledgor: GUIZHOU CHUANGQI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2023520000049 |
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