CN108310974A - A kind of reverse-flow flue gas purifying method of bilayer and device - Google Patents
A kind of reverse-flow flue gas purifying method of bilayer and device Download PDFInfo
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- CN108310974A CN108310974A CN201810339311.9A CN201810339311A CN108310974A CN 108310974 A CN108310974 A CN 108310974A CN 201810339311 A CN201810339311 A CN 201810339311A CN 108310974 A CN108310974 A CN 108310974A
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- 239000003546 flue gas Substances 0.000 title claims abstract description 72
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 195
- 230000023556 desulfurization Effects 0.000 claims abstract description 193
- 239000000779 smoke Substances 0.000 claims abstract description 64
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 208
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 121
- 229910021529 ammonia Inorganic materials 0.000 claims description 104
- 239000003517 fume Substances 0.000 claims description 74
- 239000007789 gas Substances 0.000 claims description 58
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 40
- 238000005192 partition Methods 0.000 claims description 33
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000003575 carbonaceous material Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 2
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- 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
- B01D53/06—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 moving adsorbents, e.g. rotating beds
-
- 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
- B01D53/8603—Removing sulfur compounds
- B01D53/8609—Sulfur 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—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
- B01D53/869—Multiple step processes
-
- 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
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/102—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
An embodiment of the present invention provides a kind of reverse-flow flue gas purifying methods of bilayer and device, wherein device to include：The reverse-flow smoke eliminator in upper layer and undertow formula smoke eliminator arranged vertically, wherein the reverse-flow smoke eliminator in upper layer includes：Upper layer feeding warehouse, upper layer denitration chamber, upper layer desulfurization chamber and upper layer discharge bin, undertow formula smoke eliminator include：Lower layer's feeding warehouse, lower layer's denitration chamber, lower layer's desulfurization chamber and lower layer's discharge bin, it is equipped with upper layer combined feed entrance and lower layer's combined feed entrance above the reverse-flow smoke eliminator in upper layer, upper layer combined feed entrance is connect with upper layer feed entrance, lower layer's combined feed entrance is connect with one end of lower layer's feed pipe, the other end of lower layer's feed pipe is connect with lower layer feed entrance, and the aggregate bin bottom of upper layer discharge bin is connected with upper layer drainage line；It is equipped with total discharge bin below undertow formula smoke eliminator, total discharge bin is connect with the aggregate bin bottom of lower layer discharge bin and upper layer drainage line respectively.
Description
Technical field
The present invention relates to atmosphere pollution purification technology fields, more particularly to a kind of reverse-flow gas cleaning of bilayer
Method and device.
Background technology
With the gradual increase of China's sulfur dioxide and nitrogen oxide emission, have containing sulfur dioxide and nitrogen oxides etc.
The discharge standard of the flue gas of evil gas is also higher and higher.Currently, being widely used in environment using active carbon purifying flue gas
Protect work various aspects.
Existing active carbon purifying flue gas equipment, when being purified to flue gas, first by activated carbon at the top of cleaning equipment
Feed inlet is packed into desulfurization chamber and denitration chamber with feeding mode；Then flue gas, flue gas activated carbon in desulfurization chamber are passed through to desulfurization chamber
Adsoption catalysis effect under, sulfur dioxide therein, water and oxygen reaction are converted into sulfuric acid and are adsorbed in the micropore of activated carbon, obtain
To desulfurization fume；Be passed through ammonia and desulfurization fume to denitration chamber again so that nitrogen oxides in flue gas can on the activated carbon into
Row selective catalytic reduction reaction generates nitrogen and water, obtains desulphurization denitration flue gas；Finally the flue gas of desulphurization denitration is led to
Cross the exhanst gas outlet discharge of equipment.
But there are following two aspect is insufficient for existing this active carbon purifying flue gas equipment：On the one hand, activated carbon is from net
The mode that the top feed mouth of change equipment is knocked down falls directly on denitration chamber and desulfurization chamber bottom since feed inlet is smaller so that
Discharging point compares concentration, and the flue gas in the space in such desulfurization chamber and denitration chamber in addition to discharging point compares the space of concentration is difficult
It is contacted with activated carbon；On the other hand, when being passed through ammonia and desulfurization fume to denitration chamber, since the ammonia that ammonia pipeline is sprayed is
Ammonia pipe outlet is first concentrated on, is then diffused into denitration chamber again, in this way, desulfurization fume is during being passed through denitration chamber,
Cannot ensure mixing well for ammonia and most of desulfurization fume, at the same can make the ammonia by denitration chamber from exhanst gas outlet
Discharge.These two issues all can cause the purification efficiency of flue gas relatively low.
Invention content
The embodiment of the present invention is designed to provide a kind of reverse-flow flue gas purifying method of bilayer and device, to improve flue gas
Purification efficiency.Specific technical solution is as follows：
The embodiment of the invention discloses a kind of reverse-flow smoke eliminator of bilayer, including the upper layer arranged vertically are reverse-flow
Smoke eliminator and undertow formula smoke eliminator, wherein the reverse-flow smoke eliminator in upper layer includes：Upper layer
Feeding warehouse, upper layer denitration chamber, upper layer desulfurization chamber and upper layer discharge bin, the upper layer feeding warehouse top are equipped with upper layer feed entrance,
Upper layer feeding warehouse bottom is equipped with multiple first relief holes；
Upper layer the first discharge cone bucket, the upper layer first row are equipped between the upper layer feeding warehouse and the upper layer denitration chamber
The introducing port of material cone bucket being relatively large in diameter is connect with first relief hole, and the diameter of the upper layer the first discharge cone bucket is smaller
Export mouth stretches into the upper layer denitration chamber, and upper layer denitration chamber bottom is equipped with multiple second relief holes, the upper layer denitration chamber
Top is equipped with upper layer exhanst gas outlet；
Between the upper layer denitration chamber and the upper layer desulfurization chamber be equipped with upper layer the second discharge cone bucket, top tank air partition board and
Upper layer is into ammonia room, and into multiple ammonia injection apparatus are equipped in ammonia room, the upper layer is arranged into ammonia room on the upper layer on the upper layer
On side wall between denitration chamber and the upper layer desulfurization chamber, the top of the upper layer into ammonia room is located at the top tank air partition board
Top, the upper layer are located at the lower section of the top tank air partition board into the bottom of ammonia room, have in the second discharge cone bucket of the upper layer
There are gap or hole for gas to pass through, the introducing port being relatively large in diameter and second relief hole of the upper layer the second discharge cone bucket
Connection, the smaller export mouth of the diameter of the upper layer the second discharge cone bucket pass through the top tank air partition board to stretch into the upper layer to take off
Sulphur room, the upper layer desulfurization chamber top are equipped with desulfurization fume and export, and upper layer desulfurization chamber bottom is equipped with multiple third relief holes；
Upper layer third discharge cone bucket and upper layer smoke inlet are equipped between the upper layer desulfurization chamber and the upper layer discharge bin,
There is gap or hole for gas to pass through, the third relief hole to be arranged with the upper layer third in the upper layer third discharge cone bucket
The introducing port connection of material cone bucket being relatively large in diameter, the export mouth that the diameter of the upper layer third discharge cone bucket is smaller stretch on described
Layer discharge bin；
The undertow formula smoke eliminator includes：Lower layer's feeding warehouse, lower layer's denitration chamber, lower layer's desulfurization chamber and lower layer
Discharge bin, lower layer's feeding warehouse top are equipped with lower layer's feed entrance, and lower layer's feeding warehouse bottom is equipped with multiple 4th discharges
Hole；
Lower layer's the first discharge cone bucket, lower layer's first row are equipped between lower layer's feeding warehouse and lower layer's denitration chamber
The introducing port of material cone bucket being relatively large in diameter is connect with the 4th relief hole, and the diameter of the lower layer the first discharge cone bucket is smaller
Export mouth stretches into lower layer's denitration chamber, and lower layer's denitration chamber bottom is equipped with multiple 5th relief holes, lower layer's denitration chamber
Top is equipped with lower layer's exhanst gas outlet；
Between lower layer's denitration chamber and lower layer's desulfurization chamber be equipped with lower layer's the second discharge cone bucket, underlying gas partition board and
Lower layer is into ammonia room, and into multiple ammonia injection apparatus are equipped in ammonia room, the lower layer is arranged into ammonia room in the lower layer for the lower layer
On side wall between denitration chamber and lower layer's desulfurization chamber, the top of the lower layer into ammonia room is located at the underlying gas partition board
Top, the lower layer are located at the lower section of the underlying gas partition board into the bottom of ammonia room, have in the lower layer the second discharge cone bucket
There are gap or hole for gas to pass through, the introducing port being relatively large in diameter and the 5th relief hole of the lower layer the second discharge cone bucket
Connection, the smaller export mouth of the diameter of the lower layer the second discharge cone bucket pass through the underlying gas partition board to stretch into the lower layer to take off
Sulphur room, lower layer's desulfurization chamber top are equipped with desulfurization fume and export, and lower layer's desulfurization chamber bottom is equipped with multiple 6th relief holes；
Lower layer's third discharge cone bucket and lower layer's smoke inlet are equipped between lower layer's desulfurization chamber and lower layer's discharge bin,
There is gap or hole for gas to pass through, the 6th relief hole to be arranged with lower layer's third in lower layer's third discharge cone bucket
The introducing port connection of material cone bucket being relatively large in diameter, the smaller export mouth of the diameter of lower layer's third discharge cone bucket stretch into it is described under
Layer discharge bin；
It is equipped with upper layer combined feed entrance and lower layer's combined feed entrance above the reverse-flow smoke eliminator in upper layer, it is described
Upper layer combined feed entrance is connect with upper layer feed entrance, and lower layer's combined feed entrance is connect with one end of lower layer's feed pipe,
The other end of lower layer's feed pipe is connect with lower layer's feed entrance, the aggregate bin bottom connection of the upper layer discharge bin
There is upper layer drainage line；
Be equipped with total discharge bin below the undertow formula smoke eliminator, total discharge bin respectively with the lower layer
The aggregate bin bottom of discharge bin is connected with the upper layer drainage line.
Optionally, the multiple first relief hole is evenly distributed on upper layer feeding warehouse bottom, the multiple 4th row
Material hole is evenly distributed on lower layer's feeding warehouse bottom.
Optionally, the multiple second relief hole is evenly distributed on upper layer denitration chamber bottom, the multiple 5th row
Material hole is evenly distributed on lower layer's denitration chamber bottom.
Optionally, the multiple third relief hole is evenly distributed on upper layer desulfurization chamber bottom, the multiple 6th row
Material hole is evenly distributed on lower layer's desulfurization chamber bottom.
Optionally, described device further includes：
Upper layer sulfur dioxide detector and lower layer's titanium dioxide are equipped in the upper layer desulfurization chamber and lower layer's desulfurization chamber respectively
Sulfur determination apparatus.
Optionally, the second discharge of upper layer cone bucket includes：Diameter by greatly gradually small the first tapered portion and the second tapered portion,
And first delivery line, first tapered portion are sleeved in second tapered portion, the introducing port diameter of first tapered portion is big
Gap is equipped between the introducing port diameter equal to second tapered portion, first tapered portion and second tapered portion,
The introducing port that first tapered portion is relatively large in diameter is connect with second relief hole, and the second tapered portion diameter is smaller to lead
Outlet is connect with first delivery line, and first delivery line stretches into the upper layer desulfurization across the top tank air partition board
Room；
The lower layer the second discharge cone bucket includes：Diameter is by gradually small third tapered portion and the 4th tapered portion and second greatly
Delivery line, the third tapered portion are sleeved in the 4th tapered portion, and the introducing port diameter of the third tapered portion is more than or equal to
The introducing port diameter of 4th tapered portion, is equipped with gap between the third tapered portion and the 4th tapered portion, and described the
The introducing port that triconic portion is relatively large in diameter is connect with the 5th relief hole, the smaller export mouth of the 4th tapered portion diameter with
The second delivery line connection, second delivery line stretch into lower layer's desulfurization chamber across the underlying gas partition board.
Optionally, the upper layer third discharge cone bucket includes：Diameter by greatly gradually small the 5th tapered portion and the 6th tapered portion,
And third delivery line, the 5th tapered portion are sleeved in the 6th tapered portion, the introducing port diameter of the 5th tapered portion is big
Gap is equipped between the introducing port diameter equal to the 6th tapered portion, the 5th tapered portion and the 6th tapered portion,
The introducing port that 5th tapered portion is relatively large in diameter is connect with the third relief hole, and the 6th tapered portion diameter is smaller to lead
Outlet is connect with the third delivery line, and the third delivery line stretches into the upper layer discharge bin；
Lower layer's third discharge cone bucket includes：Diameter is by gradually small the 7th tapered portion and the 8th tapered portion and the 4th greatly
Delivery line, the 7th tapered portion are sleeved in the 8th tapered portion, and the introducing port diameter of the 7th tapered portion is more than or equal to
The introducing port diameter of 8th tapered portion, is equipped with gap between the 7th tapered portion and the 8th tapered portion, and described the
The introducing port that seven tapered portion are relatively large in diameter is connect with the 6th relief hole, the smaller export mouth of the 8th tapered portion diameter with
The 4th delivery line connection, the 4th delivery line stretch into lower layer's discharge bin.
Optionally, described device further includes：
The upper layer third discharge cone bucket and lower layer's third discharge cone bucket are respectively arranged below with upper layer discharge control valve
With lower layer's discharge control valve.
The embodiment of the invention also discloses a kind of reverse-flow flue gas purifying methods of bilayer, are applied to the above-mentioned reverse-flow cigarette of bilayer
In air purifying apparatus, including：
Make activated carbon respectively by upper layer active carbon material feeding entrance and lower layer's active carbon material feeding entrance, it is reverse-flow into upper layer
Smoke eliminator denitration chamber and desulfurization chamber and undertow formula smoke eliminator denitration chamber and desulfurization chamber；
Make that flue gas passes through upper layer smoke inlet and lower layer's smoke inlet enters in upper layer desulfurization chamber and lower layer's desulfurization chamber respectively
Desulfurization process is carried out, upper layer desulfurization fume and lower layer's desulfurization fume are respectively obtained；
Keep upper layer desulfurization fume, lower layer's desulfurization fume mixed into the ammonia of ammonia room and lower layer into ammonia in ammonia room with upper layer respectively
It closes, so that the desulfurization fume for being mixed with ammonia carries out selective catalytic reduction reaction in upper layer denitration chamber and lower layer's denitration chamber,
After reaction, make the flue gas in the denitration chamber of upper layer and the flue gas in lower layer's denitration chamber respectively from upper layer exhanst gas outlet and lower layer's cigarette
Gas is discharged in outlet, obtains the flue gas of desulphurization denitration.
Optionally, the method further includes：
The concentration of emission of upper layer desulfurization fume and the sulfur dioxide in lower layer's desulfurization fume is detected respectively whether less than default
Threshold value, when the concentration of emission of the sulfur dioxide in upper layer desulfurization fume and lower layer's desulfurization fume is less than the predetermined threshold value, point
Not by upper layer desulfurization fume and lower layer's desulfurization fume discharge upper layer desulfurization chamber and lower layer's desulfurization chamber.
A kind of reverse-flow flue gas purifying method of bilayer provided in an embodiment of the present invention and device, on the one hand, pass through activated carbon
Can blanking be carried out from each discharge cone bucket respectively, such that discharging point is relatively uniform, to improve flue gas and activated carbon
Contact area on the other hand by being equipped with multiple ammonia injection apparatus into ammonia room, ensure that filling for ammonia and desulfurization fume
Divide mixing, reduces ammonia escapement ratio, improve denitration efficiency, to improve the purification efficiency of flue gas.Certainly, implement this hair
Bright any product or method do not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the reverse-flow smoke eliminator of bilayer provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the second discharge of upper layer cone bucket provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the second discharge of lower layer cone bucket provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of third discharge cone bucket in upper layer provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of lower layer's third discharge cone bucket provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, an embodiment of the present invention provides a kind of reverse-flow smoke eliminators of bilayer, including arrange vertically
The reverse-flow smoke eliminator in upper layer and undertow formula smoke eliminator, wherein the reverse-flow smoke eliminator packet in upper layer
It includes：Upper layer feeding warehouse 1, upper layer denitration chamber 2, upper layer desulfurization chamber 3 and upper layer discharge bin 4, the top of upper layer feeding warehouse 1 be equipped with upper layer into
Expect that entrance 9,1 bottom of upper layer feeding warehouse are equipped with multiple first relief holes.
In specific implementation process, on upper layer, 1 bottom of feeding warehouse, which is equipped with multiple first relief holes, can be such that activated carbon is falling
When entering upper layer denitration chamber 2, upper layer the first discharge cone bucket 5 can be first fallen into from multiple first relief holes respectively, then fall into upper layer
Denitration chamber 2 avoids activated carbon and concentrates a certain region for falling on upper layer denitration chamber 2.
Herein, described " multiple " refer to：At least two, preferably three or more, such as 4,8,20 etc.；
In practical applications, of relief hole can be set according to the area in the face where the pore size of relief hole and relief hole
Number.
Upper layer the first discharge cone bucket 5 is equipped between upper layer feeding warehouse 1 and upper layer denitration chamber 2, upper layer the first discharge cone bucket 5
The introducing port being relatively large in diameter is connect with the first relief hole, and the export mouth that the diameter of upper layer the first discharge cone bucket 5 is smaller stretches into upper layer
Denitration chamber 2,2 bottom of upper layer denitration chamber are equipped with multiple second relief holes, and denitration chamber 2 top in upper layer is equipped with upper layer exhanst gas outlet 15.
The introducing port of upper layer the first discharge cone bucket 5 being relatively large in diameter is connect with the first relief hole, specifically, can directly by
Upper layer the first discharge cone bucket 5 is put into from top to bottom with the first relief hole, and makes being relatively large in diameter for upper layer the first discharge cone bucket 5
The upper surface flush in the face where introducing port and the first relief hole, can also being relatively large in diameter upper layer the first discharge cone bucket 5
Introducing port be fixed by screws in the lower surface in face etc. where the first relief hole.It should be noted that every can make
The connection type that activated carbon is fallen into from the first relief hole and upper layer the first discharge cone bucket 5 in upper layer denitration chamber 2 successively belongs to this
The range of protection is invented, it is numerous to list herein.
Denitration chamber 2 bottom in upper layer is equipped with multiple second relief holes, for by the activated carbon in upper layer denitration chamber 2 from multiple the
It is fallen into upper layer desulfurization chamber 3 in two relief holes and upper layer the second discharge cone bucket 6, avoids activated carbon concentration and fall on upper layer desulfurization chamber
3 a certain region.The top of upper layer denitration chamber 2 is equipped with upper layer exhanst gas outlet 15, for that will carry out the flue gas row after desulphurization denitration
Go out, in the present apparatus, smoke inlet 13 is provided in the lower part of device, and exhanst gas outlet 15 is provided in the top of device, in this way, cigarette
Gas is arranged from the bottom up, and activated carbon is to arrange from top to bottom, and this mode can increase the contact area of activated carbon and flue gas, to
Also improve the purification efficiency of flue gas.
It should be noted that described " discharge cone bucket " can be understood as herein：Its top has what is be relatively large in diameter to lead
Entrance, and export mouth is arranged by gradually small tapered portion greatly, and in the bottom of tapered portion in setting diameter below the introducing port, and in leading
Outlet extends downwardly delivery line.
Upper layer the second discharge cone bucket 6, top tank air partition board 8 and upper layer are equipped between upper layer denitration chamber 2 and upper layer desulfurization chamber 3
Into ammonia room 14, upper layer into being equipped with multiple ammonia injection apparatus in ammonia room 14, upper layer into ammonia room 14 be arranged upper layer denitration chamber 2 with it is upper
On side wall between layer desulfurization chamber 3, upper layer is located at the top of top tank air partition board 8 into the top of ammonia room 14, and upper layer is into ammonia room 14
Bottom be located at the lower section of top tank air partition board 8, there is gap or hole for gas to pass through in upper layer the second discharge cone bucket 6, on
The introducing port of the second discharge cone bucket 6 of layer being relatively large in diameter is connect with the second relief hole, and the diameter of upper layer the second discharge cone bucket 6 is smaller
Export mouth stretch into upper layer desulfurization chamber 3 across top tank air partition board 8, desulfurization chamber 3 top in upper layer is equipped with desulfurization fume and exports, upper layer
3 bottom of desulfurization chamber is equipped with multiple third relief holes.
Wherein, top tank air partition board 8 is used to obstruct the desulfurization fume that upper layer desulfurization chamber 3 is discharged and is directly entered upper layer denitration chamber
In 2, specifically, when desulfurization fume is discharged from upper layer desulfurization chamber 3, top tank air partition board 8 obstructs the desulfurization fume so that
The desulfurization fume transverse shifting cocurrent is to upper layer into ammonia room 14, then, by being mixed into the ammonia in ammonia room 14 with upper layer, mixes
Flue gas flow direction upper layer denitration chamber 2 afterwards.In the present apparatus, ammonia injection apparatus can be several spray ammonia pipes, and every sprays on ammonia pipe
Equipped with injection nozzle, injection nozzle can be that grating type is arranged.Multiple ammonia injection apparatus, energy are installed into ammonia room 14 is interior on upper layer
Enough so that each space uniform of upper layer into ammonia room is dispersed with ammonia, in this way, desulfurization fume is when by upper layer into ammonia room, more
Flue gas can be contacted with ammonia.This multiple spot spray ammonia and the integrated technology of mixing ensure that ammonia and the abundant of desulfurization fume mix
It is even, the escaping of ammonia rate is considerably reduced, denitration efficiency is improved.
In addition, the introducing port of upper layer the second discharge cone bucket 6 being relatively large in diameter is connect with the second relief hole, specifically, can be with
Directly upper layer the second discharge cone bucket 6 is put into from top to bottom with the second relief hole, and makes the diameter of upper layer the second discharge cone bucket 6
The upper surface flush in the face where larger introducing port and the second relief hole, can also be by the straight of upper layer the second discharge cone bucket 6
The larger introducing port of diameter is fixed by screws in the lower surface in face etc. where the second relief hole.It should be noted that every
It can be so that activated carbon falls into the connection type in upper layer desulfurization chamber 3 all from the second relief hole and upper layer the second discharge cone bucket 6 successively
Belong to the scope of protection of the invention, it is numerous to list herein.
Upper layer third discharge cone bucket 7 and upper layer smoke inlet 13 are equipped between upper layer desulfurization chamber 3 and upper layer discharge bin 4, on
There is gap or hole for gas to pass through, the diameter of third relief hole and upper layer third discharge cone bucket 7 in layer third discharge cone bucket 7
Larger introducing port connection, the export mouth that the diameter of upper layer third discharge cone bucket 7 is smaller stretch into upper layer discharge bin 4.
Wherein, the introducing port of upper layer third discharge cone bucket 7 being relatively large in diameter is connect with third relief hole, specifically, can be with
Directly upper layer third discharge cone bucket 7 is put into from top to bottom with third relief hole, and makes the diameter of upper layer third discharge cone bucket 7
The upper surface flush of larger introducing port and the face where third relief hole, can also be by the straight of upper layer third discharge cone bucket 7
The larger introducing port of diameter is fixed by screws in the lower surface in face etc. where third relief hole.It should be noted that every
It can be so that activated carbon falls into the connection type in upper layer discharge bin 4 all from third relief hole and upper layer third discharge cone bucket 7 successively
Belong to the scope of protection of the invention, it is numerous to list herein.
Undertow formula smoke eliminator includes：Lower layer's feeding warehouse 1 ', lower layer's denitration chamber 2 ', lower layer's desulfurization chamber 3 ' and under
Layer discharge bin 4 ', 1 ' top of lower layer's feeding warehouse are equipped with lower layer's feed entrance 9 ', and 1 ' bottom of lower layer's feeding warehouse is equipped with multiple 4th rows
Expect hole.
Here, being equipped with multiple 4th relief holes in 1 ' bottom of lower layer's feeding warehouse can make activated carbon fall into lower layer's denitration chamber
When 2 ', lower layer's the first discharge cone bucket 5 ' can be first fallen into from multiple 4th relief holes respectively, then fall into lower layer's denitration chamber 2 ', kept away
Exempt from activated carbon and concentrates a certain region for falling on lower layer's denitration chamber 2 '.
Lower layer's the first discharge cone bucket 5 ', lower layer's the first discharge cone bucket are equipped between lower layer's feeding warehouse 1 ' and lower layer's denitration chamber 2 '
5 ' the introducing port being relatively large in diameter is connect with the 4th relief hole, and the export mouth that the diameter of lower layer's the first discharge cone bucket 5 ' is smaller stretches into
Lower layer's denitration chamber 2 ', 2 ' bottom of lower layer's denitration chamber are equipped with multiple 5th relief holes, and 2 ' top of lower layer's denitration chamber is equipped with lower layer's flue gas
Outlet 15 '.
The introducing port of lower layer's the first discharge cone bucket 5 ' being relatively large in diameter is connect with the 4th relief hole, specifically, can be direct
By lower layer's the first discharge cone bucket 5 ' be put into from top to bottom in the 4th relief hole, and make the diameter of lower layer's the first discharge cone bucket 5 ' compared with
The upper surface flush in the face where big introducing port and the 4th relief hole, can also be by the diameter of lower layer's the first discharge cone bucket 5 '
Larger introducing port is fixed by screws in the lower surface in face etc. where the 4th relief hole.It should be noted that every energy
So that activated carbon falls into the connection type in lower layer's denitration chamber 2 ' all from the 4th relief hole and lower layer's the first discharge cone bucket 5 ' successively
Belong to the scope of protection of the invention, it is numerous to list herein.
2 ' bottom of lower layer's denitration chamber is equipped with multiple 5th relief holes, for by the activated carbon in lower layer's denitration chamber 2 ' from multiple
It is fallen into lower layer's desulfurization chamber 3 ' in 5th relief hole and lower layer's the second discharge cone bucket 6 ', avoiding activated carbon concentration, to fall on lower layer de-
The a certain region of sulphur room 3 '.2 ' top of lower layer's denitration chamber is equipped with lower layer's exhanst gas outlet 15 ', for it will carry out desulphurization denitration after
Flue gas is discharged, and in the present apparatus, smoke inlet 13 ' is provided in the lower part of device, and exhanst gas outlet 15 ' is provided in the upper of device
Portion, in this way, flue gas is arranged from the bottom up, and activated carbon is to arrange from top to bottom, and this mode can increase connecing for activated carbon and flue gas
Contacting surface is accumulated, to also improve the purification efficiency of flue gas.
Between lower layer's denitration chamber 2 ' and lower layer's desulfurization chamber 3 ' be equipped with lower layer's the second discharge cone bucket 6 ', underlying gas partition board 8 ' and
Lower layer is equipped with multiple ammonia injection apparatus into ammonia room 14 ', lower layer into ammonia room 14 ' is interior, and lower layer is arranged into ammonia room 14 in lower layer's denitration
On side wall between room 2 and lower layer's desulfurization chamber 3 ', lower layer is located at the top of underlying gas partition board 8 ' into the top of ammonia room 14 ', under
Floor is located at the lower section of underlying gas partition board 8 ' into the bottom of ammonia room 14 ', and lower layer's the second discharge cone bucket 6 ' above has for gas to pass through
Gap or hole, the introducing port of lower layer's the second discharge cone bucket 6 ' being relatively large in diameter connect with the 5th relief hole, the second discharge of lower layer
The export mouth that the diameter of cone bucket 6 ' is smaller stretches into lower layer's desulfurization chamber 3 ' across underlying gas partition board 8 ', and 3 ' top of lower layer's desulfurization chamber is set
There are desulfurization fume outlet, 3 ' bottom of lower layer's desulfurization chamber to be equipped with multiple 6th relief holes.
Wherein, underlying gas partition board 8 ' is used to obstruct the desulfurization fume that lower layer's desulfurization chamber 3 ' is discharged and is directly entered lower layer's denitration
In room 2 ', specifically, when desulfurization fume is from lower layer's 3 ' middle discharge of desulfurization chamber, underlying gas partition board 8 ' hinders the desulfurization fume
Every so that the desulfurization fume transverse shifting cocurrent is to lower layer into ammonia room 14 ', then, by with lower layer into the ammonia in ammonia room 14 '
Mixing, mixed flue gas flow direction lower layer denitration chamber 2 '.In the present apparatus, sprayed into the interior multiple ammonias of installation in ammonia room 14 ' in lower layer
Device enables to lower layer to be dispersed with ammonia into each space uniform of ammonia room 14 ', in this way, desulfurization fume by lower layer into
When ammonia room 14 ', more flue gases can be contacted with ammonia.This multiple spot spray ammonia and the integrated technology of mixing, ensure that ammonia and take off
Sulphur flue gas mixes well, and considerably reduces the escaping of ammonia rate, improves denitration efficiency.
In addition, the introducing port of lower layer's the second discharge cone bucket 6 ' being relatively large in diameter is connect with lower layer the second relief hole, specifically,
Directly lower layer's the second discharge cone bucket 6 ' can be put into from top to bottom with lower layer the second relief hole, and make the second discharge cone of lower layer
The upper surface flush of the introducing port of bucket 6 ' being relatively large in diameter and the face where the second relief hole of lower layer, can also be by lower layer second
The introducing port of discharge cone bucket 6 ' being relatively large in diameter is fixed by screws in the lower surface in face etc. where the second relief hole of lower layer.
It should be noted that every can be so that activated carbon falls into lower layer from the second relief hole of lower layer and lower layer's the second discharge cone bucket 6 ' successively
Connection type in desulfurization chamber 3 ' shall fall within the protection scope of the present invention, numerous to list herein.
Lower layer's third discharge cone bucket 7 ' and lower layer's smoke inlet are equipped between lower layer's desulfurization chamber 3 ' and lower layer's discharge bin 4 '
13 ', lower layer's third discharge cone bucket 7 ' above has gap or hole for gas to pass through, the 6th relief hole and lower layer's third discharge cone bucket
7 ' introducing port the connection being relatively large in diameter, the export mouth that the diameter of lower layer's third discharge cone bucket 7 ' is smaller stretch into lower layer's discharge bin
4′。
Wherein, the introducing port of lower layer's third discharge cone bucket 7 ' being relatively large in diameter is connect with the 6th relief hole, specifically, can be with
Directly lower layer's third discharge cone bucket 7 ' is put into from top to bottom with the 6th relief hole, and makes the straight of lower layer's third discharge cone bucket 7 '
The upper surface flush in the face where the larger introducing port of diameter and the 6th relief hole, can also be by lower layer's third discharge cone bucket 7 '
The introducing port being relatively large in diameter is fixed by screws in the lower surface in face etc. where the 6th relief hole.It should be noted that all
Being can be so that activated carbon falls into the connection side in lower layer's discharge bin 4 ' from the 6th relief hole and lower layer's third discharge cone bucket 7 ' successively
Formula shall fall within the protection scope of the present invention, numerous to list herein.
Herein, the second discharge of upper layer cone bucket 6, upper layer third discharge cone bucket 7, lower layer's the second discharge cone bucket 6 ' and lower layer
Three discharge cone buckets 7 ' are above respectively provided with gap or hole for gas to pass through, specifically, can be directly in the cone of each discharge cone bucket
Shape portion is equipped with multiple through-holes, and the diameter of the through-hole is less than the diameter of activated carbon, can also be the introducing port in tapered portion and row
When expecting hole connection, there are gaps for gas to pass through when introducing port to be fixed by screws in the lower surface in the face where relief hole
Etc..
It is equipped with upper layer combined feed entrance 11 and lower layer's combined feed entrance 11 ' above the reverse-flow smoke eliminator in upper layer, on
Layer combined feed entrance 11 is connect with upper layer feed entrance 9, and lower layer's combined feed entrance 11 ' and one end of lower layer's feed pipe 10 ' connect
It connects, the other end of lower layer's feed pipe 10 ' is connect with lower layer feed entrance 9 ', and the aggregate bin bottom of upper layer discharge bin 4 is connected with
Upper layer drainage line 10.
Be equipped with total discharge bin 12 below undertow formula smoke eliminator, total discharge bin 12 respectively with lower layer discharge bin 4 '
Aggregate bin bottom and upper layer drainage line 10 connect.
Here, upper layer combined feed entrance 11 and lower layer's combined feed entrance 11 ' are respectively used to activated carbon being discharged into upper layer charging
Storehouse 1 and lower layer's feeding warehouse 1 '.Total discharge bin 12 is used to collect the activated carbon of upper layer discharge bin 4 and lower layer's discharge bin 4 ', will be upper and lower
Activated carbon in two layers of device is collected together, can directly will be in total discharge bin 12 when needing to parse activated carbon
Activated carbon be discharged into the activated carbon resolver being connect with total discharge bin 12, save that activated carbon is discharged into Analytic Tower when
Between.Here it is possible to respectively in upper layer combined feed entrance 11, lower layer's combined feed entrance 11 ', and the discharge gate of total discharge bin 12 is set
There is lock gas discharge device, to prevent flue gas from discharge inside the double-deck reverse-flow smoke eliminator.
The reverse-flow smoke eliminator in upper layer and undertow formula smoke eliminator are superimposed to be formed up and down in the present apparatus
The stacking apparatus of combination, i.e., the double-deck reverse-flow smoke eliminator, wherein stacking apparatus Parallel Design, system resistance reach most
It is small, meanwhile, the technology that this reverse-flow smoke eliminator of bilayer is superimposed above and below is filled by the reverse-flow gas cleaning on upper layer
It sets top and is equipped with upper layer combined feed entrance 11 and lower layer's combined feed entrance 11 ', and under undertow formula smoke eliminator
Side is equipped with total discharge bin 12, solves the problems, such as the discharge of the reverse-flow smoke eliminator in upper layer and undertow formula gas cleaning dress
The charging problem set, upper and lower device group is closely superimposed, compact-sized, is saved the area.
In addition, by desulfurization, spray ammonia, denitration respectively in desulfurization chamber, into carrying out in ammonia room, denitration chamber in the present apparatus, it is this will
Desulfurization, spray ammonia, three sections of independent partitions of denitration activated carbon adverse current purifier, realize in flue gas multi-pollutant efficiently at collaboration
Reason.
In the specific implementation mode of the present invention, multiple first relief holes are evenly distributed on 1 bottom of upper layer feeding warehouse, multiple
4th relief hole is evenly distributed on 1 ' bottom of lower layer's feeding warehouse.
Specifically, the first relief hole and the 4th relief hole contribute to activated carbon being transferred to denitration chamber from feeding warehouse,
The relief hole of even distribution is equally distributed when activated carbon can be made to fall on denitration chamber.It is equipped with multiple uniform rows in feeding warehouse bottom
Material hole and the first discharge cone bucket can be uniformly distributed in this way, foring a uniform distribution device when activated carbon falls on denitration chamber
In each space of denitration chamber.
In the specific implementation mode of the present invention, multiple second relief holes are evenly distributed on 2 bottom of upper layer denitration chamber, multiple
5th relief hole is evenly distributed on 2 ' bottom of lower layer's denitration chamber.
Specifically, the second relief hole and the 5th relief hole contribute to activated carbon being transferred to desulfurization chamber from denitration chamber,
The relief hole of even distribution is equally distributed when activated carbon can be made to fall on desulfurization chamber.It is equipped with multiple uniform rows in denitration chamber bottom
Hole and the second discharge cone bucket are expected, in this way, activated carbon can be evenly distributed on each space of denitration chamber when falling on desulfurization chamber.
In the specific implementation mode of the present invention, multiple third relief holes are evenly distributed on 3 bottom of upper layer desulfurization chamber, multiple
6th relief hole is evenly distributed on 3 ' bottom of lower layer's desulfurization chamber.
Specifically, third relief hole and the 6th relief hole contribute to activated carbon being transferred to discharge bin from desulfurization chamber,
The relief hole of even distribution is equally distributed when activated carbon can be made to fall on discharge bin.It is equipped with multiple uniform rows in desulfurization chamber bottom
Material hole and third discharge cone bucket can uniformly be fallen in this way, foring a uniform discharge device when activated carbon falls on denitration chamber
Discharge bin avoids activated carbon caused by concentrating blanking and is blocked in the problems in aggregate bin of discharge bin.
In the specific implementation mode of the present invention, the above-mentioned reverse-flow smoke eliminator of bilayer can also include：
Upper layer sulfur dioxide detector and lower layer's sulfur dioxide are equipped in upper layer desulfurization chamber 3 and lower layer's desulfurization chamber 3 ' respectively
Detector.
Specifically, upper layer sulfur dioxide detector and lower layer's sulfur dioxide detector can be placed on upper layer desulfurization chamber 3 respectively
With the desulfurization fume outlet port of lower layer desulfurization chamber 3 ', sulfur dioxide detector is for detecting sulfur dioxide in flue gas in desulfurization chamber
Concentration of emission it is whether up to standard.
In the specific implementation mode of the present invention, as shown in Fig. 2, upper layer the second discharge cone bucket 6 includes：Diameter is by gradually small greatly
The first tapered portion 16 and the second tapered portion 17 and the first delivery line 18, the first tapered portion 16 be sleeved in the second tapered portion 17,
The introducing port diameter of one tapered portion 16 is more than or equal to the introducing port diameter of the second tapered portion 17, the first tapered portion 16 and the second taper
Gap is equipped between portion 17, the introducing port that the first tapered portion 16 is relatively large in diameter is connect with the second relief hole, and the second tapered portion 17 is straight
The smaller export mouth of diameter is connect with the first delivery line 18, and the first delivery line 18 stretches into upper layer desulfurization across top tank air partition board 8
Room 3.
The desulfurization fume and ammonia on upper layer can be between the first tapered portion 16 and the second tapered portion 17 gap enter it is upper
Layer denitration chamber 2, the desulfurization fume and ammonia for realizing upper layer can enter from multiple gaps respectively, to increase upper layer
The contact area of desulfurization fume and ammonia and activated carbon in the denitration chamber of upper layer, improves the denitration efficiency of the desulfurization fume on upper layer.
Lower layer's the second discharge cone bucket 6 ' is as shown in figure 3, include：Diameter is by gradually small third tapered portion 16 ' and the 4th is bored greatly
Shape portion 17 ' and the second delivery line 18 ', third tapered portion 16 ' are sleeved in the 4th tapered portion 17 ', the importing of third tapered portion 16 '
Mouth diameter is more than or equal to the introducing port diameter of the 4th tapered portion 17 ', is equipped between third tapered portion 16 ' and the 4th tapered portion 17 '
Gap, the introducing port that third tapered portion 16 ' is relatively large in diameter are connect with the 5th relief hole, and 17 ' diameter of the 4th tapered portion is smaller to lead
Outlet is connect with the second delivery line 18 ', and the second delivery line 18 ' stretches into lower layer's desulfurization chamber 3 ' across underlying gas partition board 8 '.
The desulfurization fume and ammonia of lower layer can be between third tapered portion 16 ' and the 4th tapered portion 17 ' gap enter
Lower layer's denitration chamber 2 ', the desulfurization fume and ammonia for realizing lower layer can enter from multiple gaps respectively, to increase down
The contact area of the desulfurization fume and ammonia and activated carbon in lower layer's denitration chamber of layer improves the denitration effect of the desulfurization fume of lower layer
Rate.
In the specific implementation mode of the present invention, as shown in figure 4, upper layer third discharge cone bucket 7 includes：Diameter is by gradually small greatly
The 5th tapered portion 19 and the 6th tapered portion 20 and third delivery line 21, the 5th tapered portion 19 be sleeved in the 6th tapered portion 20,
The introducing port diameter of five tapered portion 19 is more than or equal to the introducing port diameter of the 6th tapered portion 20, the 5th tapered portion 19 and the 6th taper
Gap is equipped between portion 20, the introducing port that the 5th tapered portion 19 is relatively large in diameter is connect with third relief hole, and the 6th tapered portion 20 is straight
The smaller export mouth of diameter is connect with third delivery line 21, and third delivery line 21 stretches into upper layer discharge bin 4.
The flue gas on upper layer can enter upper layer desulfurization chamber 3 from the gap between the 5th tapered portion 19 and the 6th tapered portion 20,
Realizing the flue gas on upper layer can enter from multiple gaps respectively, and the flue gas to increase upper layer is lived with the desulfurization chamber of upper layer
The contact area of property charcoal, improves the desulfuration efficiency of the flue gas on upper layer.
Lower layer's third discharge cone bucket 7 ' is as shown in figure 5, include：Diameter is by gradually small the 7th tapered portion 19 ' and the 8th cone greatly
Shape portion 20 ' and the 4th delivery line 21 ', the 7th tapered portion 19 ' are sleeved in the 8th tapered portion 20 ', the importing of the 7th tapered portion 19 '
Mouth diameter is more than or equal to the introducing port diameter of the 8th tapered portion 20 ', is equipped between the 7th tapered portion 19 ' and the 8th tapered portion 20 '
Gap, the introducing port that the 7th tapered portion 19 is relatively large in diameter are connect with the 6th relief hole, the smaller export of 20 ' diameter of the 8th tapered portion
Mouth is connect with the 4th delivery line 21 ', and the 4th delivery line 21 ' stretches into lower layer's discharge bin 4 '.
The flue gas of lower layer can enter lower layer's desulfurization chamber from the gap between the 7th tapered portion 19 ' and the 8th tapered portion 20 '
3 ', realizing the flue gas of lower layer can enter from multiple gaps respectively, to increase the flue gas and lower layer's desulfurization chamber of lower layer
The contact area of middle activated carbon improves the desulfuration efficiency of the flue gas of lower layer.
In addition, when above-mentioned each discharge cone bucket is to be uniformly distributed, the gap in each discharge cone bucket be also it is equally distributed, this
Sample, so that it may so that flue gas is also equally distributed in upward row, the purification efficiency of flue gas can be further increased.
In the specific implementation mode of the present invention, the above-mentioned reverse-flow smoke eliminator of bilayer can also include：
Upper layer third discharge cone bucket 7 and lower layer's third discharge cone bucket 7 ' are respectively arranged below with upper layer discharge control valve and lower layer
Discharge control valve.
Here, discharge control valve may be mounted on the delivery line of discharge cone bucket, and vertical with delivery line, to ensure the row
Expect that control valve is solid and reliable.Here discharge control valve can be existing startup regulating valve.Discharge control valve includes mainly valve
Bar and spool, spool moves under the promotion of valve rod in valve inner, to change the circulation area of spool and valve base chamber, to
It realizes and the discharge of activated carbon is controlled.When that need not carry out discharge, closing control valve is then opened when needing to carry out discharge
Control valve, so that activated carbon falls into connected discharge bin from the discharge of discharge cone bucket.
A kind of reverse-flow flue gas purifying method of bilayer that the embodiment of the present invention also provides is applied to the above-mentioned reverse-flow cigarette of bilayer
In air purifying apparatus, include the following steps：
(1) make activated carbon respectively by upper layer active carbon material feeding entrance and lower layer's active carbon material feeding entrance, it is inverse into upper layer
Streaming smoke eliminator denitration chamber and desulfurization chamber and undertow formula smoke eliminator denitration chamber and desulfurization chamber；
Specifically, activated carbon first passes through upper layer active carbon material feeding entrance and lower layer's active carbon material feeding entrance respectively, fall into
Layer feeding warehouse and lower layer's feeding warehouse, then pass through the reverse-flow smoke eliminator in upper layer and undertow formula gas cleaning respectively again
Each discharge cone bucket of device carries out blanking, makes the reverse-flow smoke eliminator denitration chamber in upper layer and desulfurization chamber, and lower layer respectively
Reverse-flow smoke eliminator denitration chamber and desulfurization chamber is all relatively uniform is dispersed with activated carbon, i.e. the discharging point of activated carbon compares
Uniformly, to improve the contact area of flue gas and activated carbon.
(2) make that flue gas passes through upper layer smoke inlet and lower layer's smoke inlet enters upper layer desulfurization chamber and lower layer's desulfurization chamber respectively
Middle carry out desulfurization process, respectively obtains upper layer desulfurization fume and lower layer's desulfurization fume；
Specifically, after flue gas enters desulfurization chamber, it, will be in flue gas under the adsoption catalysis of the activated carbon in the desulfurization chamber
Sulfur dioxide, water and oxygen reaction be converted into the micropore for the activated carbon that sulfuric acid is adsorbed in the desulfurization chamber, obtain desulfurization
Flue gas.
(3) make upper layer desulfurization fume, lower layer's desulfurization fume respectively with upper layer into ammonia room ammonia and lower layer into ammonia room
Ammonia mixes, so that the desulfurization fume for being mixed with ammonia carries out selective catalytic reduction in upper layer denitration chamber and lower layer's denitration chamber
Reaction, after reaction, make the flue gas in the denitration chamber of upper layer and the flue gas in lower layer's denitration chamber respectively from upper layer exhanst gas outlet and
It is discharged in lower layer's exhanst gas outlet, obtains the flue gas of desulphurization denitration.
Specifically, during desulfurization fume is discharged into denitration chamber, desulfurization fume is first passed through into ammonia room, and into more in ammonia room
The ammonia mixing that a ammonia injection apparatus is sprayed, the desulfurization fume for being then mixed with ammonia flows to denitration chamber, in denitration chamber
In be mixed with the desulfurization fume of ammonia selective catalytic reduction reaction carried out by the catalytic action of activated carbon, generate nitrogen and
Water is to get the flue gas of desulphurization denitration has been arrived, and finally, the flue gas of desulphurization denitration is discharged by exhanst gas outlet.Wherein, it selectively urges
It refers under the effect of the catalyst, (such as using reducing agent to change reduction method (Selective Catalytic Reduction, SCR)
Ammonia) " selective " with the reaction of nitrogen oxides in flue gas and generate nontoxic and pollution-free nitrogen and water.
In the specific implementation mode of the present invention, a kind of reverse-flow flue gas purifying method of bilayer can also include：
The concentration of emission of upper layer desulfurization fume and the sulfur dioxide in lower layer's desulfurization fume is detected respectively whether less than default
Threshold value respectively will when the concentration of emission of the sulfur dioxide in upper layer desulfurization fume and lower layer's desulfurization fume is less than predetermined threshold value
Upper layer desulfurization fume and lower layer's desulfurization fume discharge upper layer desulfurization chamber and lower layer's desulfurization chamber.
Specifically, the row of sulfur dioxide in each layer desulfurization fume can be detected by the sulfur dioxide detector in desulfurization chamber
Put whether concentration is less than 5 milligrams per standard cubic meter, if it is less, desulfurization chamber is discharged in the desulfurization fume.In the present solution, being
Upper layer desulfurization fume and lower layer's desulfurization fume are detected respectively, standard compliant desulfurization fume is arranged from the desulfurization chamber at place
Go out.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of reverse-flow smoke eliminator of bilayer, which is characterized in that the reverse-flow gas cleaning in upper layer including arranging vertically
Device and undertow formula smoke eliminator, wherein the reverse-flow smoke eliminator in upper layer includes：Upper layer feeding warehouse
(1), upper layer denitration chamber (2), upper layer desulfurization chamber (3) and upper layer discharge bin (4), upper layer feeding warehouse (1) top are equipped with upper layer
Feed entrance (9), upper layer feeding warehouse (1) bottom are equipped with multiple first relief holes；
Upper layer the first discharge cone bucket (5), the upper layer are equipped between the upper layer feeding warehouse (1) and the upper layer denitration chamber (2)
The introducing port of first discharge cone bucket (5) being relatively large in diameter is connect with first relief hole, the upper layer the first discharge cone bucket (5)
The smaller export mouth of diameter stretch into the upper layer denitration chamber (2), upper layer denitration chamber (2) bottom is equipped with multiple second discharges
Hole, upper layer denitration chamber (2) top are equipped with upper layer exhanst gas outlet (15)；
Upper layer the second discharge cone bucket (6), top tank air are equipped between the upper layer denitration chamber (2) and the upper layer desulfurization chamber (3)
Partition board (8) and upper layer are into ammonia room (14), and the upper layer is into being equipped with multiple ammonia injection apparatus in ammonia room (14), and the upper layer is into ammonia
Room (14) is arranged on side wall between the upper layer denitration chamber (2) and the upper layer desulfurization chamber (3), and the upper layer is into ammonia room
(14) top is located at the top of the top tank air partition board (8), and the bottom of the upper layer into ammonia room (14) is located at the upper layer
The lower section of gas barrier (8) has gap or hole for gas to pass through, the upper layer in the upper layer the second discharge cone bucket (6)
The introducing port of second discharge cone bucket (6) being relatively large in diameter is connect with second relief hole, the upper layer the second discharge cone bucket (6)
The smaller export mouth of diameter stretch into the upper layer desulfurization chamber (3), the upper layer desulfurization chamber across the top tank air partition board (8)
(3) top is equipped with desulfurization fume and exports, and upper layer desulfurization chamber (3) bottom is equipped with multiple third relief holes；
Upper layer third discharge cone bucket (7) and upper layer flue gas are equipped between the upper layer desulfurization chamber (3) and the upper layer discharge bin (4)
Entrance (13) has gap or hole for gas to pass through, the third relief hole and institute on the upper layer third discharge cone bucket (7)
The introducing port connection of upper layer third discharge cone bucket (7) being relatively large in diameter is stated, the diameter of the upper layer third discharge cone bucket (7) is smaller
Export mouth stretch into the upper layer discharge bin (4)；
The undertow formula smoke eliminator includes：Lower layer's feeding warehouse (1 '), lower layer's denitration chamber (2 '), lower layer's desulfurization chamber
(3 ') and lower layer's discharge bin (4 '), lower layer's feeding warehouse (1 ') top are equipped with lower layer's feed entrance (9 '), lower layer's charging
Storehouse (1 ') bottom is equipped with multiple 4th relief holes；
Lower layer's the first discharge cone bucket (5 ') is equipped between lower layer's feeding warehouse (1 ') and lower layer's denitration chamber (2 '), under described
The introducing port of the first discharge cone bucket (5 ') of layer being relatively large in diameter is connect with the 4th relief hole, the lower layer the first discharge cone bucket
The smaller export mouth of the diameter of (5 ') stretches into lower layer's denitration chamber (2 '), and lower layer's denitration chamber (2 ') bottom is equipped with multiple the
Five relief holes, lower layer's denitration chamber (2 ') top are equipped with lower layer's exhanst gas outlet (15 ')；
Lower layer's the second discharge cone bucket (6 '), lower layer's gas are equipped between lower layer's denitration chamber (2 ') and lower layer's desulfurization chamber (3 ')
Body partition board (8 ') and lower layer are into ammonia room (14 '), and the lower layer is equipped with multiple ammonia injection apparatus into ammonia room (14 ') is interior, under described
On the side wall that floor is arranged into ammonia room (14) between lower layer's denitration chamber (2) and lower layer's desulfurization chamber (3 '), the lower layer
It is located at the top of the underlying gas partition board (8 ') into the top of ammonia room (14 '), the bottom of the lower layer into ammonia room (14 ') is located at
The lower section of the underlying gas partition board (8 '), have in the lower layer the second discharge cone bucket (6 ') gap for gas to pass through or
Hole, the introducing port of the lower layer the second discharge cone bucket (6 ') being relatively large in diameter are connect with the 5th relief hole, the lower layer
The export mouth that the diameter of two discharge cone buckets (6 ') is smaller stretches into lower layer's desulfurization chamber across the underlying gas partition board (8 ')
(3 ') are equipped with desulfurization fume at the top of lower layer's desulfurization chamber (3 ') and export, and lower layer's desulfurization chamber (3 ') bottom is equipped with multiple the
Six relief holes；
Lower layer's third discharge cone bucket (7 ') and lower layer are equipped between lower layer's desulfurization chamber (3 ') and lower layer's discharge bin (4 ')
Smoke inlet (13 ') has gap or hole for gas to pass through, the 6th discharge on lower layer's third discharge cone bucket (7 ')
Hole is connect with the introducing port of lower layer's third discharge cone bucket (7 ') being relatively large in diameter, lower layer's third discharge cone bucket (7 ')
The smaller export mouth of diameter stretches into lower layer's discharge bin (4 ')；
It is equipped with upper layer combined feed entrance (11) and lower layer's combined feed entrance above the reverse-flow smoke eliminator in upper layer
(11 '), the upper layer combined feed entrance (11) connect with upper layer feed entrance (9), and lower layer's combined feed entrance (11 ') is under
One end connection of layer feed pipe (10 '), the other end of lower layer's feed pipe (10 ') and lower layer's feed entrance (9 ')
Connection, the aggregate bin bottom of the upper layer discharge bin (4) is connected with upper layer drainage line (10)；
Be equipped with total discharge bin (12) below the undertow formula smoke eliminator, total discharge bin (12) respectively with it is described
The aggregate bin bottom of lower layer's discharge bin (4 ') and the upper layer drainage line (10) connection.
2. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that the multiple first relief hole
It is evenly distributed on upper layer feeding warehouse (1) bottom, the multiple 4th relief hole is evenly distributed on lower layer's feeding warehouse
(1 ') bottom.
3. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that the multiple second relief hole
It is evenly distributed on upper layer denitration chamber (2) bottom, the multiple 5th relief hole is evenly distributed on lower layer's denitration chamber
(2 ') bottom.
4. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that the multiple third relief hole
It is evenly distributed on upper layer desulfurization chamber (3) bottom, the multiple 6th relief hole is evenly distributed on lower layer's desulfurization chamber
(3 ') bottom.
5. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that described device further includes：
Upper layer sulfur dioxide detector and lower layer's dioxy are equipped in the upper layer desulfurization chamber (3) and lower layer's desulfurization chamber (3 ') respectively
Change sulfur determination apparatus.
6. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that the second discharge cone of the upper layer
Bucket (6) include：Diameter is described by gradually small the first tapered portion (16) and the second tapered portion (17) and the first delivery line (18) greatly
First tapered portion (16) is sleeved on second tapered portion (17), and the introducing port diameter of first tapered portion (16) is more than or equal to
The introducing port diameter of second tapered portion (17) is equipped between first tapered portion (16) and second tapered portion (17)
Gap, the introducing port that first tapered portion (16) is relatively large in diameter are connect with second relief hole, second tapered portion
(17) the smaller export mouth of diameter is connect with first delivery line (18), and first delivery line (18) passes through the upper layer
Gas barrier (8) stretches into the upper layer desulfurization chamber (3)；
The lower layer the second discharge cone bucket (6 ') includes：Diameter is by gradually small third tapered portion (16 ') and the 4th tapered portion greatly
(17 ') and the second delivery line (18 '), the third tapered portion (16 ') are sleeved in the 4th tapered portion (17 '), the third
The introducing port diameter of tapered portion (16 ') is more than or equal to the introducing port diameter of the 4th tapered portion (17 '), the third tapered portion
Be equipped with gap between (16 ') and the 4th tapered portion (17 '), introducing port that the third tapered portion (16 ') is relatively large in diameter with
The 5th relief hole connection, the smaller export mouth of described 4th tapered portion (17 ') diameter connect with second delivery line (18 ')
It connects, second delivery line (18 ') stretches into lower layer's desulfurization chamber (3 ') across the underlying gas partition board (8 ').
7. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that the upper layer third discharge cone
Bucket (7) include：Diameter is described by gradually small the 5th tapered portion (19) and the 6th tapered portion (20) and third delivery line (21) greatly
5th tapered portion (19) is sleeved on the 6th tapered portion (20), and the introducing port diameter of the 5th tapered portion (19) is more than or equal to
The introducing port diameter of 6th tapered portion (20) is equipped between the 5th tapered portion (19) and the 6th tapered portion (20)
Gap, the introducing port that the 5th tapered portion (19) is relatively large in diameter are connect with the third relief hole, the 6th tapered portion
(20) the smaller export mouth of diameter is connect with the third delivery line (21), and the third delivery line (21) stretches into the upper layer
Discharge bin (4)；
Lower layer's third discharge cone bucket (7 ') includes：Diameter is by gradually small the 7th tapered portion (19 ') and the 8th tapered portion greatly
(20 ') and the 4th delivery line (21 '), the 7th tapered portion (19 ') are sleeved in the 8th tapered portion (20 '), and the described 7th
The introducing port diameter of tapered portion (19 ') is more than or equal to the introducing port diameter of the 8th tapered portion (20 '), the 7th tapered portion
Gap, the introducing port and institute that the 7th tapered portion (19) is relatively large in diameter are equipped between (19 ') and the 8th tapered portion (20 ')
The connection of the 6th relief hole is stated, the smaller export mouth of described 8th tapered portion (20 ') diameter connects with the 4th delivery line (21 ')
It connects, the 4th delivery line (21 ') stretches into lower layer's discharge bin (4 ').
8. the reverse-flow smoke eliminator of bilayer according to claim 1, which is characterized in that described device further includes：
The upper layer third discharge cone bucket (7) and lower layer's third discharge cone bucket (7 ') are respectively arranged below with upper layer discharge control
Valve and lower layer's discharge control valve.
9. a kind of reverse-flow flue gas purifying method of bilayer is applied to the reverse-flow cigarette of bilayer described in any one of claim 1-8
In air purifying apparatus, which is characterized in that including：
Make activated carbon respectively by upper layer active carbon material feeding entrance and lower layer's active carbon material feeding entrance, into the reverse-flow flue gas in upper layer
Purifier denitration chamber and desulfurization chamber and undertow formula smoke eliminator denitration chamber and desulfurization chamber；
Make that flue gas passes through upper layer smoke inlet and lower layer's smoke inlet enters in upper layer desulfurization chamber and lower layer's desulfurization chamber and carries out respectively
Desulfurization process respectively obtains upper layer desulfurization fume and lower layer's desulfurization fume；
Upper layer desulfurization fume, lower layer's desulfurization fume is set to be mixed respectively into the ammonia of ammonia room and lower layer into ammonia in ammonia room with upper layer,
So that the desulfurization fume for being mixed with ammonia carries out selective catalytic reduction reaction in upper layer denitration chamber and lower layer's denitration chamber, reaction
After, so that the flue gas in flue gas and the lower layer denitration chamber in the denitration chamber of upper layer is gone out respectively from upper layer exhanst gas outlet and lower layer's flue gas
It is discharged in mouthful, obtains the flue gas of desulphurization denitration.
10. according to the method described in claim 9, it is characterized in that, the method further includes：
Whether the concentration of emission for detecting upper layer desulfurization fume and the sulfur dioxide in lower layer's desulfurization fume respectively is less than predetermined threshold value,
It, respectively will be upper when the concentration of emission of the sulfur dioxide in upper layer desulfurization fume and lower layer's desulfurization fume is less than the predetermined threshold value
Layer desulfurization fume and lower layer's desulfurization fume discharge upper layer desulfurization chamber and lower layer's desulfurization chamber.
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| CN201810339311.9A CN108310974B (en) | 2018-04-16 | 2018-04-16 | Double-layer countercurrent type flue gas purification method and device |
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| CN201810339311.9A CN108310974B (en) | 2018-04-16 | 2018-04-16 | Double-layer countercurrent type flue gas purification method and device |
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| CN109482039A (en) * | 2018-12-14 | 2019-03-19 | 中国科学院过程工程研究所 | A kind of countercurrent flue gas purification device |
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| CN110227342A (en) * | 2019-06-03 | 2019-09-13 | 北京中航泰达环保科技股份有限公司 | A kind of novel reverse streaming moving bed desulfuring and denitrifying apparatus and its smoke processing system |
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| CN110523215A (en) * | 2019-10-14 | 2019-12-03 | 中国科学院过程工程研究所 | A kind of active carbon gas cleaning regeneration integrated apparatus |
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