CN206793364U - The ammonia process of desulfurization saves the device more than one times - Google Patents
The ammonia process of desulfurization saves the device more than one times Download PDFInfo
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- CN206793364U CN206793364U CN201720291454.8U CN201720291454U CN206793364U CN 206793364 U CN206793364 U CN 206793364U CN 201720291454 U CN201720291454 U CN 201720291454U CN 206793364 U CN206793364 U CN 206793364U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model discloses the ammonia process of desulfurization to save the device more than one times, a part of liquid transported out from low level circulating pump is transported to the dry powder integral tube that cools, moment turns into ammonium sulfate dry powder by heat smoke evaporation, can be with due directly to farmland fertilizer, save a large amount of heat energy of follow-up drying system, and can be to flue gas cool-down, within the scope of reaching desulfurizing tower anticorrosive coat heatproof；Oxidation air is upward through from the aperture of porous flanging gas-liquid plate respectively, and liquid is then transverse reciprocating operation, is repeatedly contacted repeatedly with oxidation air, so as to improve oxidation efficiency, and liquid-to-air is respectively walked each passage and not conflicted mutually so that operation is unobstructed, and operating flexibility increases substantially；Energy regenerating pipe causes high potential energy to be all utilized, while has dissolved the impact damage to equipment；Totally solve the problems, such as that existing equipment investment is big, power consumption is high, absorbing liquid oxidation effectiveness is poor and unmanageable, the fund more than 33% of desulfurizing tower can be saved in theory, the energy-conservation and saving fund of maximum current consuming apparatus primary cycle pump have been above 50%.
Description
Art
The utility model belongs to environment protection desulphurization technical field, is related to device of the ammonia process of desulfurization energy-conservation more than one times, especially suitable
For the newly-built ammonia process of desulfurization of steam power plant or the reducing energy consumption of the desulfurizer of original ammonia process.
Background technology
Sulfur dioxide caused by fire coal causes the pollution to environment, but desulfurization needs to pay larger investment and power consumption,
So that many enterprises lose because of desulfurization, enterprise is not certainly high to the enthusiasm of desulfurization, and irrational sulfur removal technology is being transported
Frequent Accidents during row, indivedual enterprises are caused to be in the half-open state partly stopped, holding or stopping each time can all cause energy consumption unrestrained
Take and environmental pollution, maintenance cause economic loss again with more exchange device including material, so reducing energy consumption consolidates desulfurization
Key, stable operation are the success or failure of environmental protection.The ammonia process of desulfurization can accomplish no waste residue and discharging of waste liquid, the product sulfuric acid of generation
Ammonium can be utilized, if it is possible to reduced investment and reduced cost, enterprise not but not loses, and can have more be full of
Profit.
The known ammonia process of desulfurization experienced the innovation epoch in four generations since the eighties of last century, and what is applied at present is mostly forth generation
Technology, i.e. NKK sulfur removal technologies, desulfurizer have desulfurizing tower, primary cycle pump, secondary cycle pump, multiple circulating slots and drying to set
The composition such as apply, absorbing liquid is ammonia spirit；Take up an area to save, NKK sulfur removal technologies are that desulfurizing tower is divided into upper, middle and lower three
Interval, lower layer section mainly carry out once oxidation and storage to absorbing liquid, and the effect of middle interval is preliminary to sulfur dioxide progress
Absorb and secondary oxidation, upper interval are mainly finally absorbed to sulfur dioxide, second of absorption in other words, upper interval is with
Interval has respective absorbing liquid to be circulated in tower, and the absorbing liquid of upper interval is flowed into circulating slot from a high position or is flowed into desulfurizing tower
Lower layer section oxidation, then be transported to upper interval by circulating pump and recycle, overall NKK sulfur removal technologies take up an area it is few, without
Carrying out pressurization to flue gas can run.
Using the desulfurization work that NKK is representative also there is many technological deficiencies, predominantly：
1. oxidative system invests the problem of big effect is poor and unmanageable, oxidizing process is desulfurization product sulfurous acid ammonia oxygen
It is melted into as stable sulfuric acid ammonolysis product, the method being usually taken is that puff prot and dividing plate are set inside oxidized liquid, every
The purpose of plate is to allow oxidation air to extend residence time in desulfurizing tower, many apertures is opened above dividing plate, absorbing liquid is certainly
Stream is passed down through this aperture, and oxidation air again passes through this aperture and run up, liquid and the oxygen in oxidation air
Chemical reaction generation ammonium sulfate occurs for contact, but so gas necessarily occurs and the problem of liquid phase mutually hinders, have a strong impact on
Desulfurization operation, this causes to influence each other as the vehicle of dealing is also cross a culvert；Unmanageable is because oxidation is empty
The pressure requirements of gas are very harsh, if pressure is less than normal, oxidation air can not be run up, if pressure is bigger than normal, be led again
Cause absorbing liquid to run downwards, all desulfurization can not be carried out, if oxidation air moderate pressure, caused again under liquid not
Carry out the situation that simultaneous oxidation air does not increase again so that desulfurization comes to naught；If the aperture on dividing plate is increased, although can
Solve the problems, such as that gas and liquid phase mutually hinder, but cause oxidation air to assemble so that, oxidation effect insufficient contact with liquid
Fruit is deteriorated and reaches and do not require；Investment is to cause liquid level height because of this structure greatly so that space-consuming is caused greatly, while liquid is got over
Height, then the required pressure of oxidation air is bigger, and this needs the pressure and electric power that increase air compressor, if liquid level is inclined
It is low, then the time of contact of oxidation air and liquid is short, does not reach the effect of oxidation equally.
2. destruction of the high-temperature flue gas (180 degree or so) to desulfurizing tower, because the anticorrosive coat of desulfurizing tower is usually to use ring
Oxygen tree fat adds glass flake, and the heatproof upper limit is usually 140 degree or so.
3. the negative interaction of high-order liquid, because the upper interval of tower body is provided with fluid box, high-order liquid certainly exists necessarily
Energy, these energy liquids impact destruction to the equipment of desulfurizing tower lower floor.
4. gas cap causes resistance greatly and invested the problem of high, flue gas is only supplied because being provided between each interval of desulfurizing tower
The gas cap passed through, it is therefore an objective to only allow flue gas to pass through dividing plate, but can be liquid barrier, but led because the resistance of gas cap is big
Cause flue gas operation not smooth, and gas cap makes complicated, cost height, moreover, because gas cap needs certain height
Flue gas is enabled to by the way that this necessarily increases the height of whole desulfurizing tower, and investment increases again.
Such as Patent No. 021369062, entitled " SO2 abjection and recovery method and device in flue gas " are East China reasons
The patent of work university, also Patent No. 200510040801.1, entitled " crystallization inside tower ammonia desulfurizing process and device " are
Jiangsu century south of the River environmental protection company patent, be all belong to NKK series, desulfurizing tower is all upper, middle and lower segment tower structure, not only
Investment is big and high energy consumption, it is maximum the problem of also reside in crystallization inside tower and can result in blockage, desulfurization product ammonium sulfate is in crystallization inside tower
Salt crust is necessarily formed afterwards and blocks tower body, and for the desulfurizing tower of closing, deposit can not be removed for this so that desulfurization failure frequency
It is numerous.I with what gold it is whole 2009 invention " utilize high potential energy ammonia desulfurizing process and the device (patent No.
200910068756.9) innovation patent ", can recovery section high potential energy to save, while solve crystallization inside tower and block up
The problem of plug, but be only capable of reclaiming a part of high potential energy, because oxidation air is from the middle and lower part of oxidation linker
Into, this to aoxidize the oxidation air that linker is filled with high pressure, and bubble caused by air reduces the severe of liquid, so as to
The high potential energy of counteracting, actually high potential energy are substituted by pressure-air, and high-pressure oxidation air is also required to larger energy in itself,
If oxidation air is made into enter from top, do not reach the effect of oxidation again, be not still fully solved and invest big and energy
The problem of high is consumed, can not effectively be disperseed simultaneously because the characteristic of deflector result in oxidation air so that contacted with liquid
It is insufficient, so oxygenation efficiency is still relatively low, and can not improve, while still desulfurizing tower anticorrosive coat is broken without solution high-temperature flue gas
The problem of bad effect.
Utility model content
In order to overcome the deficiency of prior art, oxidative system invests the problem of big effect is poor and unmanageable, solves high-order
The negative interaction of liquid, and solve the problems, such as destruction of the high-temperature flue gas to desulfurizing tower anticorrosive coat, also gas cap causes resistance
The problem of big and investment is high, the utility model provide device of the ammonia process of desulfurization energy-conservation more than one times, and its purpose is to these are born
Effect turns harm into good, and power consumption and cost is greatly lowered.
The ammonia process of desulfurization of the present utility model saves the device more than one times, and it includes desulfurizing tower, it is characterized in that desulfurizing tower point
Upper and lower 2 intervals, the top of each interval are provided with shower nozzle, and upper interval and lower layer section are split by demarcation strip, and demarcation strip is provided with hole
Hole, the hole gross area account for the 15%-20% of desulfurizing tower cross section, and demarcation strip has been placed above catch box, cylinder is covered with above hole
Wall, it is therefore an objective to prevent liquid to be flowed into lower layer section from hole, the height of cylinder is higher by 5cmm than liquid level, is lower layer section below demarcation strip
Shower nozzle, be provided with top purifying smoke outlet, so, the desulfurizing tower of only upper and lower 2 intervals can reach 3 intervals
Desulfurized effect；It is provided with to cool between desulfurizing tower and flue and dry powder integral tube, it is characterized in that, cool and dry powder integral tube
Diameter is bigger than flue gas delivery pipe 1.3-1.6 times, and gas approach and ammonium sulfate powder outlet are arranged at bottom, and the sulfuric acid of concentration is arranged at top
Ammonium salt solution shower nozzle and exhanst gas outlet；There is an energy regenerating pipe in the side of desulfurizing tower, it is characterized in that on top connection desulfurizing tower
The liquid of interval catch box, bottom connect high-order pump entry, porous flanging gas-liquid plate, air communicating pipe are provided with top
With oxidation air system, energy regenerating pipe has certain pressure during operation, and these fluid pressures absorb profit by high-order circulating pump
With, and dissolved the impact damage to equipment, the effect of air communicating pipe is to reduce the dynamic resistance of liquid crossflow, energy
The diameter of amount recovery tube is 1.3-1.7 times of high-order pump entry pipe diameter optimal；In the upper interval of desulfurizing tower and lower floor
The bottom of section and the top of energy regenerating pipe are provided with several layers of porous flanging gas-liquid plate, it is characterized in that, one end is close to wallboard, another
End is hanging, and hanging one end is bent downwardly, and every layer of porous flanging gas-liquid plate is all provided with multiple a diameter of 3-5mm apertures, mesh
The gas that is easy for drilled out unobstructedly from aperture, and liquid will not be flowed into from aperture it is following, it is but downward from hanging side
Gravity flow operation, actual the number of openings should be calculated with the flux of oxidation air, and each interlamellar spacing of porous flanging gas-liquid plate exists
Between 200mm-400mm；A multi-functional low speed rotation solid-liquid separator is provided with the side of desulfurizing tower, it is characterized in that main part
Divide cylindrical form, provided with overfall, overfall is connected to low level circulating pump with pipeline, and the outlet of low level circulating pump passes through pipeline
It is connected to the shower nozzle of desulfurizing tower lower layer section；The multi-functional tapered structure in low speed rotation solid-liquid separator bottom, lowest part set underflow
Slurries are collected by outlet with slow stirring scratch board, between speed of agitator is 2-15 revs/min, the spy that is slowly stirred
Point is not only power saving, and can speed up liquid precipitation, such as the effect of cyclone, while can also be being deposited on the heavy of bottom
Starch is swept to central collection, and the slurries after collection are pumped into dryer system by outlet at bottom by underflow, by drying
Preliminary ammonium sulfate product is obtained after processing, fertilizer application can be used as.
Device flow of the ammonia process of desulfurization energy-conservation more than one times of the present utility model is as follows：
The operation of absorbing liquid, interval shower nozzle sprays from desulfurizing tower, is pooled to catch box, the liquid of catch box passes through energy
Recovery tube is connected to high-order circulating pump, and now energy regenerating pipe has certain pressure, and these fluid pressures are actually a high position
Potential energy, energy regenerating pipe are connected to the entrance of high-order circulating pump, and now potential energy existing for liquid acts on high-order circulating pump
Above, absorbed by high-order circulating pump, and dissolved the impact damage to equipment；By taking NKK technologies as an example, it is assumed that de-
The effective depth of sulphur tower is 45 meters, and because desulfurizing tower is divided into three sections of upper, middle and lower, every section of height is close to 15 meters, then high position circulation
The lift of pump have to be larger than total height i.e. 45 meter and can run, and the innovation is energy regenerating, while desulfurizing tower is
Through being no longer Up-Center-Down Structure, but up-down structure, now desulfurizing tower becomes 30 meters of height, as long as and the lift of high-order circulating pump is big
Run in 15 meters of cans, the amplitude of this energy-conservation has exceeded one times (being more than 50%)；An also important factor, exactly drops
The low cost of high-order circulating pump, because circulating pump needs corrosion-proof wear and resistant to elevated temperatures expensive two-phase alloys material to be made, into
This is just directly proportional to lift height.In operation, most of absorbing liquid is again fed to upper interval by high-order circulating pump and circulates profit
With, and sub-fraction is dropped into the hole of demarcation strip, has entered directly into lower layer section, to avoid being conveyed by circulating pump again, is reached
To the purpose further saved, due to reducing the flow of circulating pump, so can also be reduced relative to circulating pump and pipeline
Cost.
The operational process of flue gas is, processed high-temperature flue gas enters from the bottom that dry powder integral tube of cooling first,
Being contacted with a small amount of high-concentration sulfuric acid ammonium liquid countercurrent sprayed from shower nozzle, moment is evaporated liquid, turns into ammonium sulfate solids powder,
The bottom for the dry powder integral tube that cools is deposited to, the energy of follow-up dryer system is so greatly saved, while is evaporated latent
The heat of high-temperature flue gas has been walked in the torrid zone, reduces destruction of the high-temperature flue gas to desulfurizing tower anticorrosive coat, and flue gas
In remaining dust run into liquid and also can deposit, reduce the ponding to desulfurizing tower shower nozzle.Then flue gas enters
The lower layer section of desulfurizing tower, contacted with the absorbing liquid sprayed by shower nozzle, the ammoniacal liquor in sulfur dioxide and absorbing liquid in flue gas
And ammonium sulfite chemically reacts, most of sulfur dioxide generation ammonium sulfite is dissolved in absorbing liquid, then is oxidized sky
Gas complete oxidation generates ammonium sulfate, and now flue gas is by preliminary purification；Then flue gas continues up operation, through separation
The space of plate reaches upper interval, and remaining sulfur dioxide continues to chemically react with the ammoniacal liquor in the absorbing liquid being ejected, this
Qualified discharge after sample flue gas is all purified；The water and ammoniacal liquor consumed is sprayed by shower nozzle of the filling pipe through upper interval and mended
Fill.
The operation of oxidation air is to respectively enter the top of the lower layer section of desulfurizing tower, upper interval and energy regenerating pipe, from more
It is upward through in the aperture of hole flanging gas-liquid plate, liquid is then transverse reciprocating operation, is repeatedly contacted repeatedly with oxidation air, so
Extend the time with air contact, the purpose of complete oxidation can be reached, because liquid is passed through from space, so not with
The Channel contention of oxidation air so that overall operation is unobstructed, and operating flexibility increases substantially, moreover, because liquid is horizontal
Always row is backhauled, considerably reduces liquid height, so reducing the pressure of oxidation air, energy-conservation is invested with reducing again.
Beneficial effect, a part of liquid for being conveyed out coming from low level circulating pump are transported to the dry powder integral tube that cools,
Moment turns into ammonium sulfate dry powder by heat smoke evaporation, can be with due directly to farmland fertilizer, saves a large amount of of follow-up drying system
Heat energy, and can be to flue gas cool-down, within the scope of reaching desulfurizing tower anticorrosive coat heatproof；Oxidation air is respectively from porous flanging
It is upward through in the aperture of gas-liquid plate, liquid is then transverse reciprocating operation, is repeatedly contacted repeatedly with oxidation air, so as to improve oxygen
Change efficiency, and liquid-to-air is respectively walked each passage and do not conflicted mutually so that operation is unobstructed, and operating flexibility increases substantially；Energy
Amount recovery tube causes high potential energy to be all utilized, while has dissolved the impact damage to equipment；Totally solve existing
The problem of equipment investment is big, power consumption is high, absorbing liquid oxidation effectiveness is poor and unmanageable, the fund of desulfurizing tower can be saved in theory
More than 33%, the energy-conservation and saving fund of maximum current consuming apparatus primary cycle pump have been above 50%.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the apparatus structure and process flow diagram of the utility model embodiment.
Fig. 2 is porous flanging gas-liquid plate structure schematic diagram.
1. cool and dry powder integral tube in figure, 2. oxidation air systems, 3. desulfurizing towers, 4. shower nozzles, 5. demarcation strips, 6. liquid collectings
Case, 7. air communicating pipes, 8. energy regenerating pipes, 9. porous flanging gas-liquid plates, 10. low level circulating pumps, 11. filling pipes, work(more than 12.
Energy low speed rotation solid-liquid separator, 13. high-order circulating pumps, 14. underflow pumps, 15. dryer systems, the outlet of 16. purifying smokes.
Embodiment
Device of the present utility model is described in further detail below in conjunction with accompanying drawing：
As shown in figure 1, include a desulfurizing tower (3), and the cooling before tower goes out dry powder integral tube (1), desulfurization
The side of tower (3) has multi-functional low speed rotation solid-liquid separator (12), energy regenerating pipe (8), low level circulating pump (10), a high position to follow
Ring pump (13), underflow pump (14) and dryer system (15)；Be divided into interval and lower layer section in desulfurizing tower (3), upper interval with
Demarcation strip is not provided between lower layer section, due to there was only two layers of design, so the height of desulfurizing tower (3) is substantially reduced, so as to drop
Low cost；Interval is provided with purifying smoke outlet (16) on desulfurizing tower (3) and shower nozzle (4), desulfurizing tower (3) lower layer section are provided with
Shower nozzle (4) and porous flanging gas-liquid plate (9), the shower nozzle (4) of interval passes through pipeline and high-order circulating pump respectively on desulfurizing tower (3)
(13) connect；The internal top of energy regenerating pipe (8) is provided with porous flanging gas-liquid plate (9), oxidation air system (2)；Institute
State porous flanging gas-liquid plate (9) to be made up of some laminates, the spacing of each laminate is big according to desulfurizing tower (3) and energy regenerating pipe (8)
Small determination, preferably between 200mm-400mm, multi-functional low speed rotation solid-liquid separator (12), its top with desulfurizing tower (3)
Lower layer section is connected, and its bottom is connected with dryer system (15).
Process operation flow is as follows：Absorbing liquid sprays from the shower nozzle (4) of interval on desulfurizing tower (3), with two in flue gas
Sulfur oxide reaction, ammonium sulfite solution is generated, then absorbing liquid is most of is collected by catch box (6), is set inside catch box (6)
There are a small amount of porous flanging gas-liquid plate (9) and oxidation air system (2), now the ammonium sulfite part in absorbing liquid is oxidized
As ammonium sulfate, energy regenerating pipe (8) is flowed into from the bottom of catch box (6), remaining ammonium sulfite is in energy regenerating pipe (8)
Top continue to be oxidized, remaining a small amount of ammonium sulfite due to can sulfur dioxide absorption, so continuing to recycle；Energy
Amount recovery tube (8) is connected to the entrance of high-order circulating pump (13), and now potential energy existing for liquid is high with the liquid of pressure
Position circulating pump (13) sorption enhanced is kinetic energy, has not only dissolved the impact damage to equipment, and be fully utilized；Such as
NKK technologies, it is assumed that the effective depth of desulfurizing tower is 45 meters, and because desulfurizing tower is divided into three sections of upper, middle and lower, every section of height is close to 15
Rice, then the lift of high-order circulating pump (13), which have to be larger than total height i.e. 45 meter, to be run, and the innovation is energy
Reclaim, while desulfurizing tower has no longer been Up-Center-Down Structure, but up-down structure, now desulfurizing tower becomes 30 meters of height, and high
Position circulating pump (13) if lift be more than 15 meters of cans and run, amplitude of this energy-conservation has exceeded 50%；An also weight
The factor wanted, is reduction of the cost of high-order circulating pump (13), and the cost height of circulating pump (13) is because circulating pump needs are anti-corrosion
It is made with wear-resisting expensive material, the height of cost is directly proportional to the height of lift；
In operation, the absorbing liquid of upper interval is largely again fed to upper interval by high-order circulating pump and recycled, and one
Fraction is dropped into the hole of demarcation strip, has entered directly into lower layer section, to avoid being conveyed by circulating pump again, reaches energy-conservation
Purpose；Because the flow of low level circulating pump (10) is reduced, so reducing energy consumption and the investment of low level circulating pump (10), convey
Amount and cost are all lowered.
From the liquid of low level circulating pump (10) outlet out, the shower nozzle (4) that a part is sent to lower layer section sprays, continued cycling through
Purification and absorption, improved constantly by the solubility for circulating ammonium sulfate, reach an equalization point, now the flowing quilt of liquid
Porous flanging gas-liquid plate (9) is oriented to, and in zigzag operation back and forth, oxidation efficiency is greatly improved, so the absorption liquid energy of this section
Enough it is fully oxidized.Another part liquid is transported to the dry powder integral tube (1) that cools, and moment is evaporated into does for ammonium sulfate
Powder, because absorbing liquid now is fully oxidized as ammonium sulfate, so be also not in ammonium sulfite in dry powder, can be direct
For farmland fertilizer, a large amount of heat energy of follow-up drying system are saved, and by reaching desulfurizing tower anticorrosive coat to flue gas cool-down
Temperature resistant range within.Finally, the absorbing liquid of concentration is transported to multi-functional low speed rotation solid-liquid separator (12) and cooled down
Crystallization and precipitation, precipitated underflow are sent into dryer system (15) by underflow pump (14), and by drying process, underflow turns into solid
Body ammonium sulfate fertilizer product is by due to farmland.
The operation of gas is inversely contacted with liquid, and processed flue gas initially enters the dry powder integral tube (1) that cools,
The high-concentration sulfuric acid ammonium salt solution that now flue gas is sprayed by shower nozzle cools, and heat is pulled away in the form of evaporation latent heat, while flue gas
In dust also further purified, subsequently into the lower layer section of desulfurizing tower (3), contacted with the absorbing liquid of shower nozzle (4) spray, cigarette
The ammoniacal liquor in sulfur dioxide and absorbing liquid in road gas chemically reacts, the ammonium sulfate and part ammonium sulfite of generation, simultaneously
It is dissolved in absorbing liquid, such flue gas turns into ammonium sulfate by preliminary purification, the oxidized air oxidation of ammonium sulfite therein；
Then flue gas continues up operation, through demarcation strip (5) arrival on interval, remaining sulfur dioxide and the absorbing liquid being ejected
In ammoniacal liquor continue to chemically react, such flue gas exports (16) qualified discharge by after fine de-sulfur by purifying smoke.Disappear
The water and ammoniacal liquor consumed sprays supplement by shower nozzle (4) of the filling pipe (11) through upper interval.
Claims (1)
1. the ammonia process of desulfurization saves the device more than one times, it includes desulfurizing tower (3), it is characterized in that upper and lower 2 sections of desulfurizing tower (3) point,
Upper interval and lower layer section are split by demarcation strip (5), and demarcation strip (5) is provided with hole, and the hole gross area accounts for desulfurizing tower (3) cross section
15%-20%, demarcation strip (5) have been placed above catch box (6), barrel are covered with above hole, and the height of cylinder is higher by than liquid level
5cmm, demarcation strip (5) are the shower nozzle (4) of lower layer section below；It is provided with to cool between flue in desulfurizing tower (3) and dry powder integral tube
(1), cool dry powder integral tube (1) diameter it is bigger than flue gas delivery pipe 1.3-1.6 times, gas approach and ammonium sulfate powder are arranged at bottom
The ammonium sulfate shower nozzle (4) and exhanst gas outlet of concentration are arranged at last outlet, top；There is an energy in the side of desulfurizing tower (3)
Recovery tube (8), top connect the liquid of interval on desulfurizing tower (3), and bottom connects high-order circulating pump (13) entrance, is set at top
There are porous flanging gas-liquid plate (9), air communicating pipe (7) and oxidation air system (2), the diameter of energy regenerating pipe is high-order circulation
1.3-1.7 times of pump (13) inlet tubing diameter；In the upper interval of desulfurizing tower (3) and the bottom of lower layer section and energy regenerating pipe
(8) top is provided with several layers of porous flanging gas-liquid plate (9), and one end is close to wallboard, and the other end is hanging, and hanging one end is turned under
Song, every layer is all provided with multiple a diameter of 3-5mm apertures, each interlamellar spacing of porous flanging gas-liquid plate (9) 200mm-400mm it
Between；It is provided with a multi-functional low speed rotation solid-liquid separator (12) in the side of desulfurizing tower (3), main part cylindrical form,
Provided with overfall, overfall is connected to low level circulating pump (10) with pipeline, and the outlet of low level circulating pump (10) is connected to pipeline
The shower nozzle (4) of desulfurizing tower (3) lower layer section；The tapered structure in multi-functional low speed rotation solid-liquid separator (12) bottom, lowest part are set
Underflow is exported, and slurries are collected with slow stirring scratch board, and the slurries after collection export defeated by underflow pump by underflow
It is sent to dryer system.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799126A (en) * | 2017-03-19 | 2017-06-06 | 刘荣甫 | Device of the ammonia process of desulfurization energy-conservation more than one times |
| CN109179829A (en) * | 2018-09-03 | 2019-01-11 | 清华大学 | It is a kind of based on thermal method concentration divide salt without outlet self-sustaining desulfurization water round-robin method |
| CN109224794A (en) * | 2018-09-29 | 2019-01-18 | 南京硫研环保科技有限公司 | A kind of integrated efficient absorption reaction device |
| CN110026072A (en) * | 2019-05-21 | 2019-07-19 | 广元揽山环保科技有限公司 | A kind of flue gas desulfurization minimum discharge absorption tower and flue gas desulfurization minimum discharge technique |
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2017
- 2017-03-19 CN CN201720291454.8U patent/CN206793364U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106799126A (en) * | 2017-03-19 | 2017-06-06 | 刘荣甫 | Device of the ammonia process of desulfurization energy-conservation more than one times |
| CN109179829A (en) * | 2018-09-03 | 2019-01-11 | 清华大学 | It is a kind of based on thermal method concentration divide salt without outlet self-sustaining desulfurization water round-robin method |
| CN109224794A (en) * | 2018-09-29 | 2019-01-18 | 南京硫研环保科技有限公司 | A kind of integrated efficient absorption reaction device |
| CN110026072A (en) * | 2019-05-21 | 2019-07-19 | 广元揽山环保科技有限公司 | A kind of flue gas desulfurization minimum discharge absorption tower and flue gas desulfurization minimum discharge technique |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171226 Termination date: 20190319 |