CN209020165U - A kind of flue gas depth takes off white minimum discharge device - Google Patents
A kind of flue gas depth takes off white minimum discharge device Download PDFInfo
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- CN209020165U CN209020165U CN201821335547.7U CN201821335547U CN209020165U CN 209020165 U CN209020165 U CN 209020165U CN 201821335547 U CN201821335547 U CN 201821335547U CN 209020165 U CN209020165 U CN 209020165U
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- flue gas
- desulfurizing tower
- white
- heat pipe
- heat exchange
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Abstract
The utility model discloses a kind of flue gas depth to take off white minimum discharge device, is related to flue gas after desulfurization deep treatment field, including desulfurizing tower, heat exchange of heat pipe A, air-introduced machine and Tuo Bai device；The desulfurizing tower includes that desulfurizing tower mentions effect tower tray, and desulfurizing tower spraying layer restrains rapid ball condensing unit, demister and desulfurizing tower outlet；The heat exchange of heat pipe A is connect by the air-introduced machine with the desulfurizing tower；In the inside of the desulfurizing tower, it is sequentially arranged the desulfurizing tower from bottom to top and has mentioned effect tower tray, the desulfurizing tower spraying layer, the rapid ball condensing unit of the tube bank and the demister；The desulfurizing tower be circumscribed with it is described take off white device, including liquid drop separator, heat exchange of heat pipe B takes off white temperature raising blower and the first electric control valve.The utility model realizes flue gas emission particulate matter not higher than 5mg/m3, sulfur dioxide is not higher than 35mg/m3.The substantially visible white cigarette of no visual really realizes the requirement of minimum discharge.
Description
Technical field
The utility model relates to flue gas after desulfurization deep treatment fields more particularly to a kind of flue gas depth to take off white minimum discharge
Device.
Background technique
Former boiler (kiln) flue gas passes through wet-method desulfurized fume band water, band gypsum rain and sulfate, and dust-laden, and all compares
It is more serious, while flue gas hangover reaches several kilometers, causes atmosphere pollution.By analysis expert, the substance is to cause haze weather
One of factor.The content of harmful substances from flue gases is reduced, the important topic in flue gas after desulfurization deep treatment field is just become.
Therefore, those skilled in the art is dedicated to developing a kind of smoke gas treatment tapping equipment, promotes the depth in flue gas
Dust removing effects.
Utility model content
In view of the above drawbacks of the prior art, technical problem to be solved in the utility model is how to realize de- butter
Water depth dust removing effects.
To achieve the above object, the utility model provides a kind of flue gas depth and takes off white minimum discharge device, including desulfurization
Tower, heat exchange of heat pipe A, air-introduced machine and Tuo Bai device；
The desulfurizing tower includes that desulfurizing tower mentions effect tower tray, desulfurizing tower spraying layer, restrains rapid ball condensing unit, demister and
Desulfurizing tower outlet；
The heat exchange of heat pipe A is connect by the air-introduced machine with the desulfurizing tower；In the inside of the desulfurizing tower, under
It has been sequentially arranged the desulfurizing tower on and and has mentioned effect tower tray, the desulfurizing tower spraying layer, the rapid ball condensing unit of the tube bank and described
Demister；Between the demister and desulfurizing tower outlet, the desulfurizing tower be circumscribed with it is described take off white device, including
Liquid drop separator, heat exchange of heat pipe B take off white temperature raising blower and the first electric control valve；The liquid drop separator and the heat pipe
One end of heat exchanger B connects, the other end of the heat exchange of heat pipe B be connected with it is described take off white temperature raising blower, it is described to take off white temperature raising
Blower is connected with first electric control valve again, first electric control valve to taking off after white temperature raising flue gas is adjusted,
It is described to take off white temperature raising flue gas into desulfurizing tower outlet, it is discharged after being mixed with main flue gas.
Further, the heat exchange of heat pipe A and heat exchange of heat pipe B is close together；The heat exchange of heat pipe A is height
Heat exchange of heat pipe is warmed, is cooled down to flue gas；The heat exchange of heat pipe B is low temperature heat pipe heat exchanger, is heated to flue gas.
Further, the flue gas circulation of the heat exchange of heat pipe A is 37 ten thousand steres/hour, the heat exchange of heat pipe B
Flue gas circulation be 12 ten thousand steres/hour.
Further, the desulfurizing tower spraying layer is circumscribed with main desulfurization pump and doctor solution plate heat exchanger；The main desulfurization
For the doctor solution of pump discharge after the doctor solution plate heat exchanger is cooling, the doctor solution enters the institute inside the desulfurizing tower
Desulfurizing tower spraying layer is stated, with hot fume haptoreaction.
Further, the rapid ball condensing unit of the tube bank is successively connected to condensate water circulatory storage tank, condensate pump, condensate liquid plate
Formula heat exchanger, is attached by pipeline each other, forms a set of circulation condensation device；It is produced after being condensed to flue gas
Flue gas condensing water is flow to described cold by raw condensed water by the liter gas water collector inside the desulfurizing tower by the pipeline
Condensate circulating storage groove is stored, the condensed water in the condensate water circulatory storage tank using the condensate pump pressurization and it is described
After condensate liquid plate heat exchanger carries out cooling, the rapid ball condensing unit of the tube bank is entered by the pipeline and continues cooled flue gas.
Further, the condensate water circulatory storage tank can generate partly precipitated object after recycling for a long time, through pumping
Pressurization by the condensate water circulatory storage tank condensed water and sediment be sent to sediment separation system, extra condensed water is by pumping
To advanced treatment of wastewater, make after being handled using film separation system using the extra condensed water as system circulating water moisturizing circulation
With；Water in the condensate water circulatory storage tank is supplemented by technique moisturizing, and the technique moisturizing comes from technique water tank.
Further, described to take off white temperature raising blower and pressurize to flue gas, the air quantity for taking off white temperature raising blower is 120,000
Cube m/h.
Further, described to take off white temperature raising blower and also connect with the second electric control valve, second electric control valve pair
It is described take off white temperature raising flue gas be adjusted after enter kiln original chimney it is hot standby；The flue gas circulation of first electric control valve
For 5-6 ten thousand stere/hour, the flue gas circulation of second electric control valve is 6-7 ten thousand stere/hour.
Further, the height of the desulfurizing tower is 70 meters.
Further, the main flue gas is the flue gas after boiler or kiln dedusting, in the temperature for entering the heat exchange of heat pipe A
Degree is 150 DEG C -180 DEG C, and the main flue gas is reduced to 100 DEG C -140 DEG C into the temperature of the desulfurizing tower after heat exchange.
The device and method that above-mentioned flue gas depth takes off white minimum discharge are applied in flue gas after desulfurization deep treatment field, hair
It is obvious now to take off butter water depth dust removing effects.Again by transformation condensation inside heat-exchange temperature control, desulfurizing tower and flue gas after desulfurization
The measures such as heating realize flue gas emission particulate matter not higher than 5mg/m3, sulfur dioxide is not higher than 35mg/m3.Summer (the 4-10 month)
Condensed smoke temperature reaches 47 DEG C hereinafter, flue gas reduces by 10% or less containing wet；Winter (March next year in November -) condensed smoke temperature
Reach 45 DEG C hereinafter, flue gas contains wet 15% or less.Smog discharge temperature reaches certain critical-temperature or more, and substantially no visual is visible
" white cigarette " really realizes the requirement of minimum discharge, substantially improves atmosphere pollution environment, builds clear water blue sky environment.
Make furtherly below with reference to technical effect of the attached drawing to the design of the utility model, specific structure and generation
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Detailed description of the invention
Fig. 1 is the overall schematic of a preferred embodiment of the utility model.
Wherein, 1- desulfurizing tower, 101- desulfurizing tower mention effect tower tray, 102- desulfurizing tower spraying layer, and 103- restrains rapid ball condensation dress
It sets, 104- demister, 105- desulfurizing tower outlet, 2- heat exchange of heat pipe A, 3- air-introduced machine, 4- takes off white device, 401- drop separation
Device, 402- heat exchange of heat pipe B, 403- take off white temperature raising blower, the first electric control valve of 404-, the second electric control valve of 5-, 6- master
Desulfurization pump, 7- doctor solution plate heat exchanger, 8- condensate water circulatory storage tank, 9- sediment separation system, 10- advanced treatment of wastewater,
11- technique moisturizing, 12- film separation system, 13- condensate pump, 14- condensate liquid plate heat exchanger.
Specific embodiment
Multiple preferred embodiments that the utility model is introduced below with reference to Figure of description, keep its technology contents clearer
Be easy to understand.The utility model can be emerged from by many various forms of embodiments, the protection of the utility model
Range is not limited only to the embodiment mentioned in text.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and the utility model is not
Limit the size and thickness of each component.Apparent in order to make to illustrate, some places suitably exaggerate the thickness of component in attached drawing.
As shown in Figure 1, the higher temperatures main flue gas after boiler (kiln) dedusting, temperature is between 150 DEG C -180 DEG C, first
Make heat exchange into the part lower temperature flue gas after heat exchange of heat pipe A2 and desulfurization, main flue gas is cooled down 40 DEG C -50 DEG C or so,
Main flue gas temperature control enters back into desulfurizing tower 1 at 130 DEG C -140 DEG C or so.Heat exchange of heat pipe A2 passes through air-introduced machine 3 and desulfurization
Tower 1 connects.In desulfurizing tower 1, main flue gas passes through desulfurizing tower from bottom to top and mentions effect tower tray 101, the entrance pipe of desulfurizing tower spraying layer 102
Beam rapids ball condensing unit 103 is cooled down, and flue gas after cooling carries out demisting using demister 104.Due to the temperature of flue gas
Degree reduces, and the volume of flue gas also accordingly becomes smaller.Into after desulfurizing tower 1, the average upflow velocity of flue gas is also corresponding to become smaller, de-
Under conditions of sulphur section height is constant, using effect tower tray new technology is proposed, liquid-gas ratio is substantially reduced, flue gas evaporating capacity is reduced, from root
The generation of the vapour concentration of flue gas is reduced in sheet.Flue-gas temperature will after flue gas rises to desulfurizing tower spraying layer 102 in desulfurizing tower 1
It is down to 65 DEG C or so.If the temperature that flue gas enters desulfurizing tower 1 is 140 DEG C, flue gas rises to desulfurizing tower spray in desulfurizing tower 1
Flue-gas temperature is 55 DEG C after drenching layer 102, and seriously band water enters back into the tube bank rapids ball condensing unit on top with mist to main flue gas at this time
103 and demister 104, carry out condensation desulfurization and dedusting demisting dehydration, condensed discharge flue-gas temperature is at 45 DEG C or so, dust-laden
Concentration < 10mg/Nm3, dehydrating demisting reaches industry advanced level.Main flue gas is restrained rapid ball condensing unit 103 and demister
After 104 processing, reach 47 DEG C hereinafter, flue gas reduces by 10% or less containing wet in summer (the 4-10 month) condensed smoke temperature；Winter (11
The March moon-next year) condensation after smoke temperature reach 45 DEG C hereinafter, flue gas contain wet 15% or less.In summer, although temperature≤45 DEG C, also
In 45 DEG C of saturated humidity.As white cigarette can be also presented when temperature is lower in direct emission.
Be discharged with 30% or so flue gas from tower top outlet side duct, through taking off white device 4 carry out flue gas take off it is white, first
Through flue by liquid drop separator 401, into after heat exchange of heat pipe B402, flue gas is warming up to 145 DEG C or so, and tolerance ratio is about
3:1.Flue gas after heating is divided into two-way by taking off after white temperature raising blower 403 pressurizes, wherein routing the first electric control valve 404 control
System is adjusted, and the flue gas by taking off white temperature raising enters desulfurizing tower outlet 105 and mixes discharge with the main flue gas of 75% or so amount, after mixing
Flue-gas temperature between 68-75 DEG C, water vapour is far from saturation point.Summer smoke stack emission is substantially without visual white cigarette；?
When environment temperature only has -10 DEG C or less, visual white cigarette amount is seldom.Another way is controlled to adjust by the first electric control valve 5, utilizes original
Flue send hot standby to concrete chimney hot standby direct exhausting when guarantee kiln is met an urgent need, and ensures kiln safety operation.
Desulfurizing tower spraying layer 102 is after cooling in the rapid ball condensing unit 103 of tube bank containing the higher mixed flue gas of steam out
Flue gas condensing water flow in condensate water circulatory storage tank 8 certainly and follows by the liter gas water collector inside desulfurizing tower 1 by condensed water
Ring is cooling to be used.Partly precipitated object after long-time recycles is sent to sediment separation system 9 through pump pressurization, and condensed water follows
Water in ring storage tank 8 is supplemented by technique moisturizing 11, and technique moisturizing 11 comes from technique water tank.Extra condensate liquid is pumped into sewage
Advanced treating 10 using film separation system 12 handle after using the extra condensed water in this part as system circulating water moisturizing circulation
It uses, condenses water zero discharge, do not constitute secondary pollution.
It is pressurizeed by condensate pump 13, is entered through the condensation cycle liquid after cooling of subcooling condensate plate heat exchanger 14 by pipeline and taken off
Tube bank rapids ball condensing unit 103 inside sulphur tower 1 continues cycling through the higher containing steam of the cooling outlet of desulfurizing tower spraying layer 102
Mixed flue gas realizes that flue gas cools.
The doctor solution of main 6 outlet of desulfurization pump doctor solution after doctor solution plate heat exchanger 7 is cooling enters inside desulfurizing tower 1
Desulfurizing tower spraying layer 102, with hot fume haptoreaction.While reducing desulfuration efficiency raising due to temperature, the vapour of doctor solution
Rate is reduced, and desulfurizing tower internal steam concentration greatly reduces, and is taken off for flue gas and white is provided prerequisite.
During main smoke airflow is restrained rapid ball condensing unit 103 and demister 104, condensate water circulatory storage tank 8
Interior circulating condensing liquid pressurizes through condensate pump 13 and after subcooling condensate plate heat exchanger 14 is cooling through pipeline and nozzle, certainly super
The grade tube bank rapids bottom ball dedusting demister A is inversely spraying with flue gas flow direction downwards, and a small amount of water mist is acted in main flue gas upflow velocity
Under enter together with main flue gas from the bottom super tube bank rapids ball dedusting demister A, baffle at bottom effect under make multi-change speed
With deflecting campaign, make between the drop and drop of the different-grain diameter in flue gas, between micronic dust and micronic dust, is sent out between drop and micronic dust
Raw collision, thus coalescence, partial size becomes larger, and under the eddy flow power and upward towing force effect of flue gas, keeps turbulence sphere " public in tube bank
Turn ", so that all turbulence spheres is generated " rotation " in the effect of the lower layer's ball revolution power and frictional force of turbulence sphere.
And flue gas, when impacting turbulence sphere, the water mist in flue gas is attracted on turbulence sphere, and more droplet is adsorbed on
On turbulence sphere, then the surface of turbulence sphere forms moisture film, and more drops, which are adsorbed on turbulence sphere, makes the moisture film on turbulence sphere thicken
And water droplet is formed, desorption discharge；Micronic dust is equally adsorbed by liquid film, desorbs with drop and big drop is discharged, under the effect of gravity
The super tube bank rapids ball dedusting demister B that super tube bank rapids ball dedusting demister bottom enters lower part together with spray liquid is discharged,
Clean flue gas is discharged from the super tube bank rapids ball dedusting demister on top, what most low temperature spray liquids took off with top
Drop containing micro grit and main flue gas adverse current mix, to absorb the heat in flue gas, make flue gas cool-down, at the same absorb with it is molten
Enter harmful substance such as SO3, SO2 in flue gas, micronic dust etc., then is removed under the effect of gravity into the super tube bank rapids ball dedusting of lower layer
Day with fog B.
It is and inverse on the one hand due to the continuous variation of air velocity after condensate liquid enters super tube bank rapids ball dedusting demister B
The impact of flowing liquid makes drop generate more another typical material and increase the contact area with main flue gas；On the other hand, turbulator
Surface area it is very big, surface is all that the surface area of liquid film and smoke contacts is also very big, to improve heat of solution absorbing reaction
Efficiency, so that flue gas is sufficiently achieved cooling, take away the harmful substance in flue gas sufficiently by liquid, contain in temperature-fall period Central Plains
Due to being cooled down, the strain of water vapour liquid phase is removed the flue gas of saturated vapor at water, is finally all flowed under the influence of gravity into
The lower resistance water collector of bottom, then the flow ipe from lower resistance water collector annular groove, be discharged into condensing soln circulating tank after
It is continuous to be recycled.
Due to the process also absorption with solution to sulfur dioxide cooling to flue gas, in condensate water circulatory after being gradually concentrated
Bottom has a small amount of ammonium sulfate precipitation object in storage tank 8, and partly precipitated object is sent to film separation system 12 by pumping.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that this field ordinary skill without
It needs creative work according to the present utility model can conceive and makes many modifications and variations.Therefore, it is all in the art
Technical staff passes through logical analysis, reasoning, or a limited experiment according to the design of the utility model on the basis of existing technology can
It, all should be within the scope of protection determined by the claims with obtained technical solution.
Claims (10)
1. a kind of flue gas depth takes off white minimum discharge device, which is characterized in that including desulfurizing tower, heat exchange of heat pipe A, air-introduced machine and
Take off white device；
The desulfurizing tower includes that desulfurizing tower mentions effect tower tray, and desulfurizing tower spraying layer restrains rapid ball condensing unit, demister and desulfurization
Tower outlet；
The heat exchange of heat pipe A is connect by the air-introduced machine with the desulfurizing tower；In the inside of the desulfurizing tower, from bottom to top
It has been sequentially arranged the desulfurizing tower and has proposed effect tower tray, the desulfurizing tower spraying layer, the rapid ball condensing unit of the tube bank and the demisting
Device；Between the demister and desulfurizing tower outlet, the desulfurizing tower, which is circumscribed with, described takes off white device, including drop
Separator, heat exchange of heat pipe B take off white temperature raising blower and the first electric control valve；The liquid drop separator and the heat pipe heat exchanging
One end of device B connects, the other end of the heat exchange of heat pipe B be connected with it is described take off white temperature raising blower, it is described to take off white temperature raising blower
It is connected with first electric control valve again, first electric control valve is described to taking off after white temperature raising flue gas is adjusted
It takes off white temperature raising flue gas to export into the desulfurizing tower, be discharged after being mixed with main flue gas.
2. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that the heat exchange of heat pipe A with
The heat exchange of heat pipe B is close together；The heat exchange of heat pipe A is high temperature heat pipe heat exchanger, is cooled down to flue gas；The heat
Heat exchange of heat pipe B is low temperature heat pipe heat exchanger, is heated to flue gas.
3. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that the heat exchange of heat pipe A's
Flue gas circulation is 37 ten thousand steres/hour, and the flue gas circulation of the heat exchange of heat pipe B is 12 ten thousand steres/hour.
4. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that outside the desulfurizing tower spraying layer
It is connected to main desulfurization pump and doctor solution plate heat exchanger；The doctor solution of the main desulfurization pump discharge passes through the doctor solution plate-type heat-exchange
After device is cooling, the doctor solution enters the desulfurizing tower spraying layer inside the desulfurizing tower, with hot fume haptoreaction.
5. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that the rapid ball condensation dress of the tube bank
It sets and is successively connected to condensate water circulatory storage tank, condensate pump, condensate liquid plate heat exchanger is attached by pipeline each other,
Form a set of circulation condensation device；The condensed water generated after condensing to flue gas is by the liter gas inside the desulfurizing tower
Flue gas condensing water is flow to the condensate water circulatory storage tank by the pipeline and stored by water collector, the condensate water circulatory
After condensed water in storage tank carries out cooling using condensate pump pressurization and the condensate liquid plate heat exchanger, by the pipe
Road enters the rapid ball condensing unit of the tube bank and continues cooled flue gas.
6. flue gas depth as claimed in claim 5 takes off white minimum discharge device, which is characterized in that the condensate water circulatory storage tank
Partly precipitated object can be being generated after recycling for a long time, through pump pressurization by the condensate water circulatory storage tank condensed water and
Sediment is sent to sediment separation system, and extra condensed water is pumped into advanced treatment of wastewater, handles using film separation system
It is used afterwards using the extra condensed water as system circulating water moisturizing circulation；Water in the condensate water circulatory storage tank is mended by technique
Water is supplemented, and the technique moisturizing comes from technique water tank.
7. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that described to take off white temperature raising blower pair
Flue gas pressurizes, and the air quantity for taking off white temperature raising blower is 12 ten thousand steres/hour.
8. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that described to take off white temperature raising blower
It is connect with the second electric control valve, second electric control valve enters kiln to described take off after white temperature raising flue gas is adjusted
Former chimney is hot standby；The flue gas circulation of first electric control valve is 5-6 ten thousand stere/hour, second motorized adjustment
The flue gas circulation of valve is 6-7 ten thousand stere/hour.
9. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that the height of the desulfurizing tower is
70 meters.
10. flue gas depth as described in claim 1 takes off white minimum discharge device, which is characterized in that the main flue gas is boiler
Or the flue gas after kiln dedusting, it is 150 DEG C -180 DEG C in the temperature for entering the heat exchange of heat pipe A, the main flue gas is exchanging heat
100 DEG C -140 DEG C are reduced into the temperature of the desulfurizing tower later.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335547.7U CN209020165U (en) | 2018-08-17 | 2018-08-17 | A kind of flue gas depth takes off white minimum discharge device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821335547.7U CN209020165U (en) | 2018-08-17 | 2018-08-17 | A kind of flue gas depth takes off white minimum discharge device |
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| CN209020165U true CN209020165U (en) | 2019-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722162A (en) * | 2018-08-17 | 2018-11-02 | 安徽金森源环保工程有限公司 | A kind of flue gas depth takes off white minimum discharge apparatus and method |
-
2018
- 2018-08-17 CN CN201821335547.7U patent/CN209020165U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722162A (en) * | 2018-08-17 | 2018-11-02 | 安徽金森源环保工程有限公司 | A kind of flue gas depth takes off white minimum discharge apparatus and method |
| CN108722162B (en) * | 2018-08-17 | 2023-11-24 | 安徽金森源环保工程有限公司 | Deep-whitening ultralow-emission device and method for flue gas |
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