CN202237780U - Jet bubbling dust removal and desulfurization purification device - Google Patents
Jet bubbling dust removal and desulfurization purification device Download PDFInfo
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- CN202237780U CN202237780U CN 201120193316 CN201120193316U CN202237780U CN 202237780 U CN202237780 U CN 202237780U CN 201120193316 CN201120193316 CN 201120193316 CN 201120193316 U CN201120193316 U CN 201120193316U CN 202237780 U CN202237780 U CN 202237780U
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- gas
- dust
- dust removal
- desulfurization
- jbr
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- 230000005587 bubbling Effects 0.000 title claims abstract description 10
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 24
- 239000000428 dust Substances 0.000 title abstract description 22
- 230000023556 desulfurization Effects 0.000 title abstract description 18
- 238000000746 purification Methods 0.000 title abstract 3
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 230000003009 desulfurizing effect Effects 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 30
- 239000007788 liquid Substances 0.000 description 21
- 239000007789 gas Substances 0.000 description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 19
- 239000003546 flue gas Substances 0.000 description 19
- 240000006909 Tilia x europaea Species 0.000 description 14
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 12
- 235000011941 Tilia x europaea Nutrition 0.000 description 12
- 239000004571 lime Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 235000019738 Limestone Nutrition 0.000 description 9
- 239000006028 limestone Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000011575 calcium Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 238000009690 centrifugal atomisation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model provides a jet bubbling dust removal and desulfurization purification device, which comprises a shell, wherein the shell is provided with a gas inlet, a smoke outlet, a slurry inlet, a smoke inlet, a slurry outlet and a waste outlet. The device is characterized in that a gas jet is arranged in the shell. The device has the characteristics of low resistance loss (about 900 to 1,600Pa), high desulfurization efficiency (over 85 percent), high dust removal efficiency (over 97 percent) and the like, can meet the requirements of smoke dust removal and desulfurization purification of industrial and domestic boilers, and is worthy of popularization and application.
Description
Technical field
The utility model provides a kind of JBR formula dust-removal and desulfurizing purifier.
Background technology
In recent years, the atmosphere pollution of China is quite serious always.According to incomplete statistics in 1981, the total amount of pollutant reached 4200*10 in the national exhaust gas discharged
4T, wherein fume amount is 1500*10
4T, average out to 1.56t/km
2, (global land is 0.7t/km
2); Sulfur dioxide is 1600*10
4T, average out to 1.67t/km
2(load on global land has only 1.0t/km
2).
The source of atmosphere pollution is very extensive, mainly contains burning, commercial production and three aspects of communications and transportation of fuel.The pollutant that fuel combustion is discharged accounts for more than 70% of gross contamination thing, and what wherein fired coal combustion produced accounts for more than 90%.The energy resource structure of China mainly is to be main with fire coal, therefore how to control coal-burning boiler (comprising Industrial Boiler and boiler for domestic) institute's discharged flue gas effectively and sulfide is the task of top priority.Coal-burning boiler is compared with station boiler; Have quantity many (about 500,000), it is wide to distribute, and is in densely populated area; And characteristics such as smoke stack emission is highly low; So the dust of discharged from coal-fired boiler and sulfur dioxide are to surrounding environment, particularly the pollution of town environment is particularly serious, and harm that causes and loss are also bigger.This shows how to control cities and towns sulfur dioxide (SO2) emissions and atmospheric dust concentration effectively and just seem and become more and more important.
The utility model content
The utility model overcomes the shortcoming of prior art, and a kind of JBR formula dust-removal and desulfurizing purifier is provided, and its technical scheme that adopts is described below.
A kind of JBR formula dust-removal and desulfurizing purifier comprises shell, and shell is provided with gas access, exhanst gas outlet, slurries inlet, smoke inlet, slurries outlet, waste outlet, it is characterized in that, is provided with gas ejector in the shell.
Wherein, its described gas ejector top is provided with bubbling area.
Wherein, below described gas ejector, reaction zone is set.
The utlity model has drag losses little (about 900～1600Pa), desulfuration efficiency high (can reach more than 85%), the high characteristics such as (reaching more than 97%) of efficiency of dust collection can satisfy industry and boiler for domestic flue-gas dust-removing and desulfurization needs, are worthy of popularization.
Description of drawings
Fig. 1 is a JBR reactor principle profile among the utility model embodiment;
Fig. 2 is the process chart of JBR formula dust-removal and desulfurizing purifier among the utility model embodiment;
Fig. 3 is the graph of a relation of SR and absorption liquid submergence air jet pipe liquid level among the utility model embodiment;
Fig. 4 be among the utility model embodiment concentration of solid particles to the figure that influences of efficiency of dust collection;
Fig. 5 is Ca among the utility model embodiment, and the S mol ratio is to the figure that influences of desulfuration efficiency.
Main symbol implication:
1, gas access; 2, exhanst gas outlet; 3, slurries inlet; 4, bubbling area; 5, gas ejector; 6, smoke inlet; 7, reaction zone; 8, slurries outlet; 9, waste outlet;
The specific embodiment
Provide the preferred embodiment of the utility model below, the content of these embodiment and unrestricted the utility model.
Embodiment
The concentration of sulfur dioxide is one of important indicator of weighing atmosphere pollution in the atmosphere.The main difficulty of flue gas desulfurization is sulfur dioxide concentration, and low (generally be lower than 0.5%, by volume), flue gas volume is big, and total sulfur dioxide is big, reasonably selects flue gas desulfurization technique must consider many-sided factors such as environment, economy, society.Add up according to EPA; The flue gas desulfurization technique that extensively adopts remains lime/lime stone doctor treatment (accounting for 87%); Therefore the JBR purifier of being developed is the basis with lime/lime stone technology, the desulfurization dust separation device of a kind of high-efficiency low energy consumption of on the basis of chemical industry equipment bubble column, developing exactly.Its mentality of designing is: the high-temperature flue gas that from boiler, comes out is ejected in the lime slurry from numerous playpipes; The gas that from each pipe, comes out evokes a large amount of foams; And interfere each other, make bubble produce eddy motion, and the liquid jet effect of circulation in having.This device can be removed sulfur dioxide and dust simultaneously, is absorbed by slurries, and eddy motion and sedimentation exhalation are arranged.Compare with general lime/lime stone method, flow process is simple, processing ease and easy, and the pressure drop of equipment is little, and energy consumption is low, does not have scale formation, and investment and operating cost are all lower.
Lime/lime stone method wet type flue gas technology is proposed by Imperial Chemical Industries(ICI) company the earliest.In the flue gas desulfurization technique in modern times, flue gas is by the lime/lime stone slurries washing that contains calcium sulfite and calcium sulfate, and the alkaline matter generation chemical reaction in sulfur dioxide and the slurries generates sulphite and sulfate.Sedimentation basin separated and is discharged into continuously by solid in the slurries (comprising flying dust) from slurries, new fresh lime of adding or lime stone are circulated to scrubbing tower in clear liquid again.The factor that influences the sulfur dioxide absorption efficiency is: liquid-gas ratio, calcium sulfur ratio, gas flow rate, slurry pH value, structure on the water content of sulfur dioxide and absorption tower etc. in the gas.Wherein, liquid-gas ratio is an important parameters, in order to guarantee enough big gas-liquid contact-making surface and to avoid fouling, requires liquid-gas ratio more better.Spray desulfurizing tower in the past is to rely on the device outer circulation of absorption liquid to reach big liquid-gas ratio value, certainly will increase equipment investment and operation operating cost like this, and JBR formula dust-removal and desulfurizing purifier can address this problem well.How effectively gas-liquid contact concentrates on dispersant liquid drop in common outer circulation absorption tower; The JBR reactor has then designed a kind of distribution device in gas-fluid; Make light gas equably through heavy liquid; Make bubble produce eddy motion, and the liquid jet-action of circulation in having, its principle is as shown in Figure 1.Boiler smoke gets into inlet box equably by smoke inlet 6, and the baffling effect entering playpipe through uniform board is quickened flue gas to spray in the water by playpipe, and the great amount of bubbles that evokes makes the flue gas refinement.Because buoyancy function, bubble rises, and adds the folding retaining effect that playpipe play of permutation and combination, therefore dust removal mechanisms such as impact, inertial collision, centrifugal atomization, the stirring of gas-liquid eddy current, moisture film is combined, and accomplishes whole dust-removal and desulfurizing process.Mainly be provided with two dust-removal and desulfurizing zones in this device, one is JBR district 4, and this device is the core of whole system; Two is reaction zone 7.Gas light in bubbling area 4 makes bubbling produce eddy current equably through heavy liquid, and the liquid jet effect of recirculation is arranged; This sedimentation exhalation makes liquid by the gas high degree of agitation, and bubble is then segmented by eddy current liquid; The gas-liquid contact area increases, and desulfurization dust-removing efficiency is improved.At reaction zone 7, because flue gas bubbling and gas-liquid high degree of agitation are blended in the liquid flue gas, therefore prolonged gas-liquid contact time, desulfuration efficiency is improved.The jet bubbling method of flue gas desulfurization is a kind of lime method that belongs to wet flue gas desulfurization, and its chemical reaction is similar basically with common lime/lime stone, and difference is that the utilization rate of lime is high, almost is 100% because gas-liquid contact time is long, and oxidation is complete.To being the desulphurization reaction of absorbent with lime, the total reaction equation of system does
In the JBR district, gas phase sulfur dioxide mass transfer and lime solubility are the major control step, and at reaction zone, crystal growth rate is slow relatively, are the major control step.
The technological process of JBR formula dust-removal and desulfurizing purifier is as shown in Figure 2, and the flue gas entering JBR district and the lime stone reaction that contain dust and sulfur dioxide remove dust and sulfur dioxide.The drag losses of JBR formula dust-removal and desulfurizing purifier mainly receives the influence of absorption liquid submergence air jet pipe degree of depth h in actual moving process.H increases, and Δ p increases thereupon.Variation tendency is as shown in Figure 3.The dust-cleaning principle of JBR formula dust-removal and desulfurizing purifier is identical with the wet scrubber dust removal mechanism, mainly is inertial collision and the interception function between drop and the grit.Its efficiency of dust collection improves with the increase of inlet velocity and concentration of solid particles, and its concentration of solid particles c is as shown in Figure 4 to the influence of efficiency of dust collection.Can know the increase with granule density by Fig. 4, change in concentration weakens the influence of efficiency of dust collection.
Experiment shows, Ca, and the variation of S mol ratio has very big influence to the desulfurized effect of device, and is as shown in Figure 5.Can know desulfuration efficiency 2 with Ca by Fig. 5, the raising of S mol ratio k and rising, but increase the k value and then do not have positive effect when reaching the certain value continued.This is because the white lime major part is water insoluble, is easy to deposition.If the lime white excessive concentration then is easy to blocking pipe and equipment.Therefore in practical application, take all factors into consideration its reactivity worth and the utilization rate problem is very important, Ca, the mol ratio k of S generally gets about 1.5.When k was 1.5 left and right sides, JBR formula dust-removal and desulfurizing purifier import SO 2 from fume mean concentration was 704mg/m
-3, flue outlet sulfur dioxide mean concentration is 57 milligrams every cubic metre, average desulfurization degree is 85.3%.
Apparatus features in the utility model: 1) desulfurization, efficiency of dust collection height, according to test, JBR formula dust-removal and desulfurizing purifier desulfurization degree reaches more than 85%, and efficiency of dust collection reaches more than 97%.2) system's running resistance is low, general dust-remover clarifier, and efficient is directly proportional with the pressure loss, efficiently must exchange for high energy consumption.But JBR formula dust-removal and desulfurizing purifier is because of reasonable in design, and air-flow is evenly distributed, so guaranteeing efficiency of dust collection greater than 97%, desulfuration efficiency is greater than 85%, and normal operation the time, its drag losses is less than 1.25*10
3Pa.3) antiseptic property is good, and the life-span is long, and this desulfurizing purifier body does not have the operation parts, and the critical piece playpipe has adopted the acid-proof ceramics pipe, and casing adopts siliceous clay to smear, and it is closely knit to have structure, acid and alkali-resistance, and advantage such as wear-resisting, its antiseptic property is good, and the life-span is long.4) ash discharge is prone to, and this desulfurizing purifier adopts can closed grey trolley, the every 8h ash discharge of 4t/h boiler once, the lime-ash moisture content is 30%～40%, thus non-secondary pollution, ash discharge reliably, make things convenient for, save time, laborsaving.5) applicability is wide, because the injecting, bubbling, desulfurizing clarifier is combined by a plurality of playpipes, therefore can satisfy the needs of different capabilities boiler through the combination in any of playpipe.And can satisfy industry and boiler for domestic flue-gas dust-removing and desulfurization needs simultaneously.
Actual test through to JBR formula dust-removal and desulfurizing purifier is found; It is little by (about 900～1600Pa) that JBR formula dust-removal and desulfurizing purifier has a drag losses; Desulfuration efficiency high (can reach more than 85%); The high characteristics such as (reaching more than 97%) of efficiency of dust collection can satisfy industry and boiler for domestic flue-gas dust-removing and desulfurization needs, are worthy of popularization.
Claims (3)
1. a JBR formula dust-removal and desulfurizing purifier comprises shell, and shell is provided with gas access, exhanst gas outlet, slurries inlet, smoke inlet, slurries outlet, waste outlet, it is characterized in that, is provided with gas ejector in the shell.
2. purifier as claimed in claim 1 is characterized in that, its described gas ejector top is provided with bubbling area.
3. purifier as claimed in claim 1 is characterized in that, below described gas ejector, reaction zone is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120193316 CN202237780U (en) | 2011-06-09 | 2011-06-09 | Jet bubbling dust removal and desulfurization purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120193316 CN202237780U (en) | 2011-06-09 | 2011-06-09 | Jet bubbling dust removal and desulfurization purification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202237780U true CN202237780U (en) | 2012-05-30 |
Family
ID=46099085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120193316 Expired - Lifetime CN202237780U (en) | 2011-06-09 | 2011-06-09 | Jet bubbling dust removal and desulfurization purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202237780U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480255A (en) * | 2012-06-12 | 2014-01-01 | 佛山市华特气体有限公司 | Tail gas treating device |
| CN103691275A (en) * | 2013-11-29 | 2014-04-02 | 山西海洁星环保设备有限公司 | Twin-tower wet-type sodium alkali-method desulfurization dust-removing device and process |
-
2011
- 2011-06-09 CN CN 201120193316 patent/CN202237780U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480255A (en) * | 2012-06-12 | 2014-01-01 | 佛山市华特气体有限公司 | Tail gas treating device |
| CN103691275A (en) * | 2013-11-29 | 2014-04-02 | 山西海洁星环保设备有限公司 | Twin-tower wet-type sodium alkali-method desulfurization dust-removing device and process |
| CN103691275B (en) * | 2013-11-29 | 2015-10-21 | 山西海洁星环保设备有限公司 | Double tower wet type sodium alkali desulfation dust-extraction device and technique |
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