CN106039926A - Flue gas low-resistance desulfurization and denitrification device and desulfurization and denitrification method - Google Patents
Flue gas low-resistance desulfurization and denitrification device and desulfurization and denitrification method Download PDFInfo
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- CN106039926A CN106039926A CN201610562266.4A CN201610562266A CN106039926A CN 106039926 A CN106039926 A CN 106039926A CN 201610562266 A CN201610562266 A CN 201610562266A CN 106039926 A CN106039926 A CN 106039926A
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- flue gas
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- 239000003546 flue gas Substances 0.000 title claims abstract description 140
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 32
- 230000003009 desulfurizing Effects 0.000 title claims abstract description 32
- 239000000571 coke Substances 0.000 claims abstract description 30
- 239000007789 gas Substances 0.000 claims abstract description 14
- 239000003344 environmental pollutant Substances 0.000 claims description 29
- 231100000719 pollutant Toxicity 0.000 claims description 29
- 230000000694 effects Effects 0.000 claims description 26
- 239000000779 smoke Substances 0.000 claims description 25
- 239000000428 dust Substances 0.000 claims description 18
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 17
- 230000003213 activating Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- 238000011109 contamination Methods 0.000 claims description 5
- 230000000875 corresponding Effects 0.000 claims description 5
- 235000011149 sulphuric acid Nutrition 0.000 claims description 5
- 239000001117 sulphuric acid Substances 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 9
- 238000000746 purification Methods 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- -1 sulfur amine Chemical class 0.000 description 3
- 238000011068 load Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 210000004940 Nucleus Anatomy 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N Potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010192 crystallographic characterization Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8659—Removing halogens or halogen compounds
- B01D53/8662—Organic halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
Abstract
The invention relates to a flue gas low-resistance desulfurization and denitrification device and a desulfurization and denitrification method. The flue gas low-resistance desulfurization and denitrification device is characterized in that a primary adsorption section and a secondary adsorption section form a planar combined body, the primary adsorption section is in front, the closely connected secondary adsorption section is arranged behind, the primary adsorption section is provided with a flue gas inlet and a primary discharge hopper, and the secondary adsorption section is provided with a gas outlet flue and a secondary discharge hopper. Owing to the front reaction structure and the rear reaction structure, mechanical wear of active coke is reduced, and the operating consumption of active coke is also reduced. The occupied area of the flue gas low-resistance desulfurization and denitrification device is reduced; as a primary gas outlet room and a secondary gas outlet room are directly connected, a gas outlet flue of the primary adsorption section and a gas inlet flue of the secondary adsorption section are both eliminated; active coke is high in utilization ratio and small in mechanical loss; gas distribution is uniform; the resistance is small; the flue gas low-resistance desulfurization and denitrification device is compact in structure, flexible, and low in resistance; the desulfurization and denitrification method is simple, low in consumption of ammonia gas and small in loss of active coke, and further, the desulfurization and denitrification costs are lowered; the flue gas denitrificatiojn efficiency of flue gas subjected to secondary adsorption can reach 85% or above, and the desulfurization efficiency can reach 95% or above.
Description
Technical field:
The present invention relates to a kind of flue gas desulfurization and denitrification device and method, particularly relate to a kind of to containing SO2、NOX, dust,
The flue gas low-resistance desulphurization denitrification apparatus of the first flue gas removing of the pollutant such as hydrargyrum, two English and desulfurization denitration method.
Background technology:
China's industrial gas emission standard is increasingly stricter, to controlling SO in waste gas2、NOXThe pressure of discharge capacity is bigger.Mesh
Front waste gas purification technology technology in a wet process is main, consumes great lot of water resources, easily causes secondary pollution, and can not desulfurization simultaneously take off
Nitre, produces theory run counter to China energy-saving and emission-reduction, green industry.
Flue Gas Purification Technology Using Activated Coke is a kind of renewable, dry FGD process technology of resourcebility, utilizes activated coke
Characterization of adsorption, the dust in pollutant, SO in efficient removal flue gas2、NOX, hydrargyrum, the pollutant such as two English, moreover it is possible to removing wet method
Technology is difficult to the SO removed3, it is to avoid the series connection construction of different pollutant purification devices in flue gas, simultaneously can also to ultra-fine
Dust (PM10) has certain purification.Be applicable to purify coal-fired flue-gas, gas from oil burning, flue gas of refuse burning, heavy oil divide
Solve flue gas and sintering flue gas etc..
Adsorption-type desulfurizing tower and adsorption-type denitrating tower are the nucleus equipments of activated coke dry FGD process device.Industry at present
The fixed bed desulphurization denitration technology that mostly is of middle application and moving bed desulphurization denitration technology, the wherein treatment quantity of fixed bed unit
Relatively low, it is impossible to adapting to industrial production demand, and moving bed is big due to the optimum contact area of gas-solid, purification efficiency is high, treating capacity
The advantage such as big, has higher industrial application value.But the existing out of stock technology of moving bed desulfurization generally to there is structure inadequate
Compact, floor space is big, be difficult in adapt to the situation that place is limited, simultaneously because flow distribution evenness is relatively low, easily at device
The internal eddy current that produces, and then increase system pressure drop, the flue gas load distribution absorbability being difficult to activated coke matches, and causes taking off
Sulfur denitration efficiency declines.
For promoting exhaust emission removal efficiency, it is desirable to adsorption activity is burnt and purifies waste gas with uniform, stable speed stream
Dynamic.Because producing certain heat in purification process, the position that often, activated coke uneven in waste gas flowing is stagnated produces heat
Accumulation, produces focus, the most on fire, also needs to improve.
Disclosed in CN103349892A, cross-current type twin-stage moving-bed active coke waste gas integrated purification tower, sets the most successively
It is equipped with activated coke feed zone, denitration region, transition zone, desulfurization zone and goes out the bed of material.Device whole height is relatively big, sets activated coke conveying
Standby requirement height, the activated coke circulation rate of denitration region and desulfurization zone mutually limits, and mechanical loss is big, and operating cost is high.
Disclosed in CN102824809A, two desulfurization chambers of a kind of adsorption tower and denitration chamber are arranged symmetrically in the both sides of inlet plenum,
Unilateral desulfurization chamber and denitration chamber close communication, flue gas circulation is uneven, and bed pressure drop is big, lack transition region reaction heat be difficult to and
Time diffusion.
Disclosed in CN102019135A, a kind of flue gas combined desulfurization and denitration method and special purpose device thereof use desulfurization reactor
The mode arranged apart with Benitration reactor, by conveyance conduit migration flue gas between two towers, adds flue gas migration resistance, by
Take up an area more in two tower segregation apparatuss.
Summary of the invention:
The purpose of the present invention is that for above-mentioned the deficiencies in the prior art, it is provided that the flue gas of the out of stock integration of a kind of desulfurization
Low-resistance desulphurization denitrification apparatus；
It is a further object of the present invention to provide the desulfurization of the flue gas low-resistance desulphurization denitrification apparatus of the out of stock integration of a kind of desulfurization
Method of denitration.
It is an object of the invention to be achieved through the following technical solutions:
Flue gas low-resistance desulphurization denitrification apparatus, is formed plane disjunctor by I grade of adsorption section and II grade of adsorption section, before be I grade
Adsorption section, is followed by the II grade of adsorption section being close to.
I grade of adsorption section is provided with smoke inlet 10 and one-level discharge bucket 50, and II grade of adsorption section is provided with give vent to anger flue 40 and two grades
Discharge bucket 60；
It is to be arranged with successively into flue gas side plate a24 by one-level inlet plenum 21 both sides and go out flue gas side plate in I grade of adsorption section
A25, enters flue gas side plate a24 and go out flue gas side plate a25, between be primary activity focus layer 22, go out flue gas side plate a25 and device frame
Being one-level discharge chamber 23 between outside plate, smoke inlet 10 connects composition with one-level inlet plenum 21；
II grade of adsorption section is to be arranged with smoke side plate b34 successively by two grades of discharge chamber 33 both sides and enter flue gas side plate b35,
Smoke side plate b34 and entering between flue gas side plate b35 for second order activity focus layer 32, enters flue gas side plate b35 and 5 and device frame outside plate
Between be secondary inlet room 31, two grades of discharge chambers 33 connect composition with flue 40 of giving vent to anger.
Described entering flue gas side plate a24 and enter flue gas side plate b35 is shutter version or wedge wire screen.
The described flue gas side plate a25 and smoke side plate b34 that goes out is microwell plate or wedge wire screen.
Being provided with deflector 11 in one-level inlet plenum 21, the long width of deflector 11 is the 1/2 of one-level inlet plenum 21 length and width,
It is fixed on out in the middle part of flue gas side plate a25 with horizontal attitude.
The desulfurization denitration method of the out of stock device of flue gas low-resistance desulphurization, it is characterised in that comprise the following steps:
A, flue gas spread to both sides after smoke inlet 10 enters into one-level inlet plenum 21；
B, pass into flue gas side plate a24 enter primary activity focus layer 22, the SO carried in flue gas2、NOX, dust, hydrargyrum, two
English pollutant are adsorbed by beds；
C, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass out flue gas side plate a25 and enter
Enter after one-level discharge chamber 23 to migrate to two grades of discharge chambers 31；
D, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass and enter into flue gas side plate b35
Enter second order activity focus layer 32 again to adsorb；
E, through second adsorption flue gas through smoke side plate b34 enter two grades of discharge chambers 33, enter greatly through going out flue 40
Gas-bearing formation.
F, the flue gas of Residual contamination thing move from bottom to top, the work moved down corresponding thereto during moving up
Property Jiao's contact, the pollutant in flue gas are adsorbed by activated coke, flue gas after secondary absorption by two grades of discharge chambers 33 and cigarette of giving vent to anger
Road 40 enters atmosphere；Adsorb one-level discharge bucket 50 and two grades of discharge buckets 60 that the activated coke after pollutant is provided with from device bottom
Discharge, send into regeneration activating device, while regeneration activating, reclaim sulphuric acid.
Beneficial effect: the present invention uses front and back stages reaction structure, is carried out flue gas by activated coke in primary adsorption section
First grade desulfurizing denitration, in employing, half way spray ammonia design can effectively utilize ammonia amount, reduces the production of sulfur amine substance, reduces denitration
Ammonia nitrogen ratio, improves system denitration efficiency.The one way denitration efficiency of flue gas is up to 33%.Under primary activity focus layer, the activity of half way has
Reduced, it is possible to reduce reaction heat, it is to avoid hot-spot.Flue gas one way desulfuration efficiency after primary adsorption up to 90%,
Denitrating flue gas efficiency after secondary absorption is up to more than 85%, and desulfuration efficiency is up to more than 95%.Front and back stages reaction knot
Structure decreases the mechanical wear of activated coke, can fully improve not by the activated coke speed of service of regulation I and II adsorption section
With the Sulfur capacity utilization rate in purification function district, reduce circulating load, and then reduce the operation consumption of activated coke.Front and back stages reaction knot
Structure decreases plant area area, and relatively with the device of same size treating capacity, the one-level discharge chamber of the present invention is directly and two grades
Inlet plenum is connected, and eliminates give vent to anger flue and the inlet air stack of secondary absorption section of primary adsorption section, makes full use of space, it is achieved
The densification of apparatus structure.Assembly of the invention activated coke utilization rate is high, and mechanical loss is little, and air flow method is uniform, and resistance is little,
The compact flexible low-resistance of apparatus structure, desulfurization denitration method is simple, and ammonia consumes low, and activated coke loss rate is little, and then reduces de-
Sulfur denitration cost.
Accompanying drawing explanation
Fig. 1 is flue gas low-resistance desulphurization denitrification apparatus shape assumption diagram
Fig. 2 is flue gas low-resistance desulphurization denitrification apparatus cut-away view
Fig. 3 is the cut-away view of one-level inlet plenum 21 in Fig. 2.
100 purifier main bodys, 10 inlet air stack, 11 deflectors, 20 primary adsorption sections, 21 one-level inlet plenums, 22 one-levels
Activity focus layer, 23 one-level discharge chambers, 30 secondary absorption sections, 31 secondary inlet rooms, 32 second order activity focus layer, 33 2 grades of discharge chambers,
40 give vent to anger flue, 50 one-level discharge buckets, 60 2 grades of discharge buckets.
Detailed description of the invention
With embodiment, the present invention is done the most below in conjunction with the accompanying drawings:
Flue gas low-resistance desulphurization denitrification apparatus, is made up of I grade of adsorption section and II grade of adsorption section, and I grade of adsorption section is provided with flue gas
Entrance 10 and one-level discharge bucket 50, II grade of adsorption section is provided with give vent to anger flue 40 and two grades of discharge buckets 60；
It is to be arranged with successively into flue gas side plate a24 by one-level inlet plenum 21 both sides and go out flue gas side plate in I grade of adsorption section
A25, enters flue gas side plate a24 and go out flue gas side plate a25, between be primary activity focus layer 22, go out flue gas side plate a25 and device frame
Being one-level discharge chamber 23 between outside plate, smoke inlet 10 connects composition with one-level inlet plenum 21；
II grade of adsorption section is to be arranged with smoke side plate b34 successively by two grades of discharge chamber 33 both sides and enter flue gas side plate b35,
Smoke side plate b34 and entering between flue gas side plate b35 for second order activity focus layer 32, enter flue gas side plate b35 and device frame outside plate it
Between be secondary inlet room 31, two grades of discharge chambers 33 connect composition with flue 40 of giving vent to anger.
Described entering flue gas side plate a24 and enter flue gas side plate b35 is shutter version or wedge wire screen.
The described flue gas side plate a25 and smoke side plate b34 that goes out is microwell plate or wedge wire screen.
Being provided with deflector 11 in one-level inlet plenum 21, the long width of deflector 11 is the 1/2 of one-level inlet plenum 21 length and width,
It is fixed on out in the middle part of flue gas side plate a25 with horizontal attitude.
The desulfurization denitration method of the out of stock device of flue gas low-resistance desulphurization, it is characterised in that comprise the following steps:
A, flue gas spread to both sides after smoke inlet 10 enters into one-level inlet plenum 21；
B, pass into flue gas side plate a24 enter primary activity focus layer 22, the SO carried in flue gas2、NOX, dust, hydrargyrum, two
English pollutant are adsorbed by beds；
C, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass out flue gas side plate a25 and enter
Enter after one-level discharge chamber 23 to migrate to two grades of discharge chambers 31；
D, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass and enter into flue gas side plate b35
Enter second order activity focus layer 32 again to adsorb；
E, through second adsorption flue gas through smoke side plate b34 enter two grades of discharge chambers 33, enter greatly through going out flue 40
Gas-bearing formation.
F, the flue gas of Residual contamination thing move from bottom to top, the work moved down corresponding thereto during moving up
Property Jiao's contact, the pollutant in flue gas are adsorbed by activated coke, flue gas after secondary absorption by two grades of discharge chambers 33 and cigarette of giving vent to anger
Road 40 enters atmosphere；Adsorb one-level discharge bucket 50 and two grades of discharge buckets 60 that the activated coke after pollutant is provided with from device bottom
Discharge, send into regeneration activating device, while regeneration activating, receive sulphuric acid.
Embodiment 1
Flue gas low-resistance desulphurization denitrification apparatus, is made up of I grade of adsorption section and II grade of adsorption section, and I grade of adsorption section is provided with flue gas
Entrance 10 and one-level discharge bucket 50, II grade of adsorption section is provided with give vent to anger flue 40 and two grades of discharge buckets 60；
It is to be arranged with shutter version 24 and microwell plate 25, BAIYE successively by one-level inlet plenum 21 both sides in I grade of adsorption section
It is primary activity focus layer 22 between window version 24 and microwell plate 25, is one-level discharge chamber between microwell plate 25 and device frame outside plate
23, smoke inlet 10 connects composition with one-level inlet plenum 21；
II grade of adsorption section is to be arranged with microwell plate 34 and shutter version 35, microwell plate successively by two grades of discharge chamber 33 both sides
It is second order activity focus layer 32 between 34 and shutter version 35, is secondary inlet room between shutter version 35 and device frame outside plate
31, two grades of discharge chambers 33 connect composition with flue 40 of giving vent to anger.
Being provided with deflector 11 in one-level inlet plenum 21, the long width of deflector 11 is the 1/2 of one-level inlet plenum 21 length and width,
It is fixed on out in the middle part of flue gas side plate a25 with horizontal attitude.Deflector 11 top uses upper half way spray ammonia, effectively utilizes ammonia amount, subtracts
The production of few sulfur amine substance, reduces denitration ammonia nitrogen ratio, improves system denitration efficiency.
The desulfurization denitration method of the out of stock device of flue gas low-resistance desulphurization, it is characterised in that comprise the following steps:
A, flue gas spread to both sides after smoke inlet 10 enters into one-level inlet plenum 21；
B, pass into flue gas side plate a24 enter primary activity focus layer 22, the SO carried in flue gas2、NOX, dust, hydrargyrum, two
English pollutant are adsorbed by beds；
C, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass out flue gas side plate a25 and enter
Enter after one-level discharge chamber 23 to migrate to two grades of discharge chambers 31；
D, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass and enter into flue gas side plate b35
Enter second order activity focus layer 32 again to adsorb；
E, through second adsorption flue gas through smoke side plate b34 enter two grades of discharge chambers 33, enter greatly through going out flue 40
Gas-bearing formation.
F, the flue gas of Residual contamination thing move from bottom to top, the work moved down corresponding thereto during moving up
Property Jiao's contact, the pollutant in flue gas are adsorbed by activated coke, flue gas after secondary absorption by two grades of discharge chambers 33 and cigarette of giving vent to anger
Road 40 enters atmosphere；Adsorb one-level discharge bucket 50 and two grades of discharge buckets 60 that the activated coke after pollutant is provided with from device bottom
Discharge, send into regeneration activating device, while regeneration activating, receive sulphuric acid.
Embodiment 2
Flue gas low-resistance desulphurization denitrification apparatus, is made up of I grade of adsorption section and II grade of adsorption section, and I grade of adsorption section is provided with flue gas
Entrance 10 and one-level discharge bucket 50, II grade of adsorption section is provided with give vent to anger flue 40 and two grades of discharge buckets 60；
It is to be arranged with wedge wire screen 24 and wedge wire screen 25, wedge wire screen successively by one-level inlet plenum 21 both sides in I grade of adsorption section
24 and wedge wire screen 25, between be primary activity focus layer 22, be one-level discharge chamber 23 between wedge wire screen 25 and device frame outside plate, cigarette
Gas entrance 10 connects composition with one-level inlet plenum 21；
II grade of adsorption section is to be arranged with wedge wire screen 34 and wedge wire screen 35, wedge wire screen 34 successively by two grades of discharge chamber 33 both sides
And be second order activity focus layer 32 between wedge wire screen 35, it is secondary inlet room 31 between wedge wire screen 35 and device frame outside plate, two grades
Discharge chamber 33 connects composition with flue 40 of giving vent to anger.
Being provided with deflector 11 in one-level inlet plenum 21, the long width of deflector 11 is the 1/2 of one-level inlet plenum 21 length and width,
It is fixed on out on flue gas side plate a25 with horizontal attitude.Deflector 11 top uses upper half way spray ammonia, effectively utilizes ammonia amount, reduces
The production of sulfur amine substance, reduces denitration ammonia nitrogen ratio, improves system denitration efficiency.
The desulfurization denitration method of the out of stock device of flue gas low-resistance desulphurization, it is characterised in that comprise the following steps:
A, flue gas spread to both sides after smoke inlet 10 enters into one-level inlet plenum 21；
B, pass into flue gas side plate a24 enter primary activity focus layer 22, the SO carried in flue gas2、NOX, dust, hydrargyrum, two
English pollutant are adsorbed by beds；
C, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass out flue gas side plate a25 and enter
Enter after one-level discharge chamber 23 to migrate to two grades of discharge chambers 31；
D, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass and enter into flue gas side plate b35
Enter second order activity focus layer 32 again to adsorb；
E, through second adsorption flue gas through smoke side plate b34 enter two grades of discharge chambers 33, enter greatly through going out flue 40
Gas-bearing formation.
F, the flue gas of Residual contamination thing move from bottom to top, the work moved down corresponding thereto during moving up
Property Jiao's contact, the pollutant in flue gas are adsorbed by activated coke, flue gas after secondary absorption by two grades of discharge chambers 33 and cigarette of giving vent to anger
Road 40 enters atmosphere；Adsorb one-level discharge bucket 50 and two grades of discharge buckets 60 that the activated coke after pollutant is provided with from device bottom
Discharge, send into regeneration activating device, while regeneration activating, receive sulphuric acid.
Claims (5)
1. the out of stock device of flue gas low-resistance desulphurization, is made up of I grade of adsorption section and II grade of adsorption section, it is characterised in that 1 grade of suction
Attached section is provided with smoke inlet (10) and one-level discharge bucket (50), and II grade of adsorption section is provided with flue of giving vent to anger (40) and two grades of discharge buckets
(60)；
It is to be arranged with successively into flue gas side plate a (24) by one-level inlet plenum (21) both sides and go out flue gas side plate a in I grade of adsorption section
(25), enter flue gas side plate a (24) and go out flue gas side plate a (25), between be primary activity focus layer (22), go out flue gas side plate a (25)
And being one-level discharge chamber (23) between device frame outside plate, smoke inlet (10) connects composition with one-level inlet plenum (21)；
II grade of adsorption section is to be arranged with smoke side plate b (34) successively by two grades of discharge chamber (33) both sides and entered flue gas side plate b
(35), smoke side plate b (34) and entering between flue gas side plate b (35) for second order activity focus layer (32), enter flue gas side plate b (35) and dress
Putting between framework outside plate is secondary inlet room (31), and two grades of discharge chambers (33) connect composition with flue of giving vent to anger (40).
2. according to the out of stock device of flue gas low-resistance desulphurization described in claim 1, it is characterised in that enter flue gas side plate a (24) and enter
Flue gas side plate b (35) is shutter version or wedge wire screen.
3. according to the out of stock device of flue gas low-resistance desulphurization described in claim 1, it is characterised in that go out flue gas side plate a (25) and go out
Cigarette side plate b (34) is microwell plate or wedge wire screen.
4. according to the out of stock device of flue gas low-resistance desulphurization described in claim 1, it is characterised in that one-level inlet plenum is provided with in (21)
Deflector (11), the long width of deflector (11) is the 1/2 of one-level inlet plenum (21) length and width, is fixed on smoke with horizontal attitude
Gas side plate a (25) middle part.
5. according to the out of stock method of desulfurization of the out of stock device of flue gas low-resistance desulphurization described in claim 1, it is characterised in that include with
Lower step:
A, flue gas enter into the diffusion of one-level inlet plenum (21) backward both sides through smoke inlet (10)；
B, pass into flue gas side plate a (24) enter primary activity focus layer (22), the SO carried in flue gas2、NOX, dust, hydrargyrum, two
English pollutant are adsorbed by beds；
C, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass out flue gas side plate a (25) and enter
Two grades of discharge chambers (31) are migrated to after one-level discharge chamber (23)；
D, without or a small amount of with SO2、NOX, dust, hydrargyrum, the flue gas of two English pollutant pass and enter into flue gas side plate b (35)
Second order activity focus layer (32) is adsorbed again；
E, through second adsorption flue gas through smoke side plate b (34) enter two grades of discharge chambers (33), enter through going out flue (40)
Atmosphere.
F, the flue gas of Residual contamination thing move from bottom to top, the activated coke moved down corresponding thereto during moving up
Contact, the pollutant in flue gas are adsorbed by activated coke, and flue gas passes through two grades of discharge chambers (33) and flue of giving vent to anger after secondary absorption
(40) discharge；One-level discharge bucket (50) and two grades of discharge buckets (60) that activated coke after absorption pollutant is provided with from device bottom are arranged
Go out, send into regeneration activating device, while regeneration activating, reclaim sulphuric acid.
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| CN201610562266.4A CN106039926A (en) | 2016-07-18 | 2016-07-18 | Flue gas low-resistance desulfurization and denitrification device and desulfurization and denitrification method |
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Cited By (1)
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