CN206881489U - A kind of boiler desulfurization absorption plant of flue gas deep purifying - Google Patents
A kind of boiler desulfurization absorption plant of flue gas deep purifying Download PDFInfo
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- CN206881489U CN206881489U CN201720568760.1U CN201720568760U CN206881489U CN 206881489 U CN206881489 U CN 206881489U CN 201720568760 U CN201720568760 U CN 201720568760U CN 206881489 U CN206881489 U CN 206881489U
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- Prior art keywords
- flue gas
- tower body
- spraying layer
- synergy
- slurry
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Abstract
The utility model discloses a kind of boiler desulfurization absorption plant of flue gas deep purifying, including tower body, the tower body to include respectively from bottom to top：For slurry portion, intake section, demisting portion, electric precipitation portion, synergy portion；The synergy portion includes the synergistic device below the spraying layer, and the synergistic device includes being fixed on the fixing pipe of the tower body inwall, the circumferentially distributed helical blade in the fixed inside pipe wall.The utility model has advantages below and effect：Pass through the setting of CPR dust and synergistic device in synergy portion, enabling the slurries of atomization are concentrated, while the flue gas of rising is uniformly distributed, finally slurries are effectively contacted with flue gas, improve desulfurized effect.
Description
Technical field
Boiler desulfurization process field is the utility model is related to, more particularly to a kind of boiler of flue gas deep purifying is inhaled with desulfurization
Receiving apparatus.
Background technology
The technical method species of flue gas desulfurization is various, and process for flue gas desulfurization by limestone/lime-gypsum wet technique is using inexpensive easy
The lime stone obtained mixes with water by pulverizing and jevigating powdering and absorption slurries is made as desulfurizing agent, lime.When using stone
When ash is absorbent, pulverized limestone is after digestion process plus absorption slurries are made in water stirring.Slurries and cigarette are absorbed in absorption tower
Gas contact mixing, calcium hydroxide in sulfur dioxide and slurries in flue gas and the air blasted chemically react, finally
Reaction product be gypsum.The other impurities in flue gas can be removed simultaneously.Flue gas after desulfurization removes by demister to be taken out of
Tiny drop, after heater heat temperature raising, can be comprehensively utilized through smoke stack emission, desulfurization slag gypsum by air-introduced machine.
On the other hand in order to improve the desulfuration efficiency of desulfurizing tower, prior art much uses the pallet tower of Ba Wei companies.Support
Play that the manufacturing process of the perforated trays device of turbulent flow is extremely complex in disk tower, its device raw material selection is expensive height
Strength alloy material, and due to its porous feature, cause pallet easily to block, once block, in whole absorption tower
Flow field can become more uneven, while increase the liquid flux of not blocking portion, and then cause more serious blocking, or even
Maintenance down is needed under certain situation.The device resistance of other pallet tower is also larger, it is necessary to be equipped with powerful air blower or draw
Blower fan, thus it is also higher to the intensity requirement of pipeline, so, operation cost can be greatly increased.
Utility model content
The purpose of this utility model is to provide a kind of boiler desulfurization absorption plant of flue gas deep purifying, and having to allow
Flue gas forms a vortex, so as to improve the function of desulfuration efficiency.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of flue gas deep purifying
Boiler desulfurization absorption plant, including tower body, the tower body include respectively from bottom to top：
For slurry portion, including provide the feed portion of lime stone, the slurry pool for producing desulfurization slurry and injection desulfurization slurries
Spraying layer and connect the spraying layer and the slurry pool slurry circulating pump,
Intake section, between the slurry pool and the spraying layer, enter for flue gas,
Demisting portion, above the spraying layer, for purifying smoke carry drop,
Electric precipitation portion, for again being purified flue gas,
Synergy portion, between the intake section and the spraying layer；The synergy portion includes being located under the spraying layer
The synergistic device of side, the synergistic device include being fixed on the fixing pipe, circumferentially distributed in the fixed inside pipe wall of the tower body inwall
Helical blade.
By using above-mentioned technical proposal, flue gas rises after intake section entrance, is positioned flue gas by synergy portion
Water conservancy diversion, the atomization slurry then extracted with the spraying layer of top out of slurry pool carry out abundant haptoreaction, then by demisting portion
Filtered for the first time, enter finally into and tower body is discharged in electric precipitation portion.Fixing pipe of the synergistic device by outer end is set in synergy portion
It is fixed on tower body, under spraying layer, it is radially fixed on the fixation inside pipe wall to have a helical blade so that when flue gas is from intake section
After, flue gas can only flow through from the gap between two blades, thus when flue gas flows through from each gap, flue gas formed with
Vortex so that the air flow method on same section is uniform, strengthens the mass transfer effect between flue gas and atomization slurry, improves
The desulfuration efficiency of equipment.
It is of the present utility model to be further arranged to：The synergy portion also includes being arranged at the tower body inwall below spraying layer
CPR dust.
By using above-mentioned technical proposal, to ensure the uniformity of slurries spray in absorption tower, the arrangement of nozzle will make every effort to
Uniformly, to meet certain coverage rate, the slurries that nozzle sprays will be washed into tower wall be it is inevitable, can after CPR dust is set
Tower body inwall is washed away with effectively avoiding and weakening.SO2Change of the concentration on tower body section is both sides height, middle low, is leaned on
The slurries sprinkle density of nearly absorption tower inner wall position is much lower compared with absorption tower center；Meanwhile slurries are being sprayed onto absorption tower
When on inwall, liquid film can be formed and flow down along inner wall of tower is absorbed, the mass transfer effect in this part gas-liquid contact face is excessively poor, CPR dust
The formation of smoke corridor can be effectively prevent with strengthening flow toward center flow.
It is of the present utility model to be further arranged to：The CPR dust is returning using the central axis of the tower body as gyroaxis
Swivel, the surface of revolution triangular shape of the revolving body, the inner surface of the revolving body are inclined to set.
By using above-mentioned technical proposal, revolving body lower end aperture is smaller so that, can be along when the slurries that week surveys fall
The madial wall of revolving body is focused in the middle part of revolving body, avoids slurries from adsorbing all the time in the side wall of tower body, and can not be done with flue gas
Good mass transfer effect.
It is of the present utility model to be further arranged to：The fixing pipe lower end is set in enlarging, and the caliber of upper end is not more than
The minimum-value aperture of the revolving body.
By using above-mentioned technical proposal, the flue gas that lower section rises is set by the enlarging of fixing pipe lower end so that upper
When rising, the middle part of fixing pipe can be concentrated to, simultaneously because caliber is less than the minimum-value aperture of revolving body so that under revolving body
The oxygen fallen can directly be covered in the flue gas risen from fixing pipe, and then improve the desulfurized effect of slurries.
It is of the present utility model to be further arranged to：The tower body also includes being communicated with an oxygen supply portion.
By using above-mentioned technical proposal, the setting in oxygen supply portion can provide a certain amount of oxygen for slurry reaction, use oxygen
Change air by calcium sulfite oxidation into calcium sulfate.
It is of the present utility model to be further arranged to：The tower body inwall, the synergy portion, which apply, is formed with glass flake layer.
By using above-mentioned technical proposal, the anti-corrosive properties in tower body and synergy portion are improved, and then improve the use year of equipment
Limit.
In summary, the utility model has the advantages that：Pass through setting for the CPR dust in synergy portion and synergistic device
Put, enabling the slurries of atomization are concentrated, while the flue gas of rising is uniformly distributed, finally make it that slurries and flue gas are effective
Contact, improve desulfurized effect.
Brief description of the drawings
Fig. 1 is the schematic layout pattern of desulfurization absorption plant；
Fig. 2 is the schematic layout pattern of tower body；
Fig. 3 is the A portions enlarged diagram shown in Fig. 2；
Fig. 4 is the structural representation of synergistic device；
Fig. 5 is the B portions enlarged diagram shown in Fig. 2；
Fig. 6 is the top view of tower body；
Fig. 7 is the C portions enlarged diagram shown in Fig. 2.
In figure：1st, tower body；2nd, for slurry portion；3rd, intake section；4th, synergy portion；5th, demisting portion；6th, electric precipitation portion；7th, plasma discharge is dehydrated
Portion；8th, oxygen supply portion；8.1st, oxidation fan；8.2nd, oxidation air；9th, feed portion；10th, slurry pool；11st, spraying layer；12nd, slurries follow
Ring pump；13rd, main pipe；14th, branch pipe；15th, nozzle；16th, mixer；17th, flue；18th, air door；19th, synergistic device；19.1, fixing pipe；
19.2, helical blade；20th, CPR dust；21st, demister；22nd, pipe fitting is rinsed；23rd, casing；24th, anode tube；25th, corona discharge electrode；
26th, inlet chamber；27th, cover plate；28th, baffle plate；29th, air-vent；30th, dead ring；31st, it is sprayed pipeline.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of boiler desulfurization absorption plant of flue gas deep purifying, reference picture 1, including tower body 1, on tower body 1
For slurry portion 2, intake section 3, synergy portion 4, demisting portion 5, electric precipitation portion 6, plasma discharge de-watering section 7, oxygen supply portion 8.Flue gas is from boiler draft
Introduced after machine by intake section 3 in absorption tower, flow through synergy portion 4 from bottom to top, afterwards the spraying layer with supplying to set in slurry portion 2
The downward desulfurization slurry circulation drop of 11 injections reacts, the sour gas such as washing SO2, SO3, HF, HCl.At purification
The flue gas of reason flows through demisting portion 5 and carries out demisting, and the flue gas after purification is further purified into electric precipitation portion 6, passed through afterwards
The chimney set on tower body 1 is arranged to air, and the oxygen that oxygen supply portion 8 provides is utilized in the slurry pool 10 in tower body 1 by sulfurous acid
Calcium is oxidized to calcium sulfate, slurries is sent into gypsum dehydration system from absorption tower finally by the excavationg pump as plasma discharge de-watering section 7,
Post-processed.
For the reference picture 2 of slurry portion 2, including feed portion 9, slurry pool 10, spraying layer 11, slurry circulating pump 12.Slurry pool 10 with
Tower body 1 is structure as a whole, and is arranged on the bottom of tower body 1, and slurry circulating pump 12 is arranged on outside tower body 1, is single current and single-stage horizontal
Centrifugal pump, one end are communicated in the slurry pool 10 inside tower body 1 by circulation pipe, and the other end sets and is connected with spraying layer 11.
Feed portion 9 is a material stock groove for placing lime stone, is connected by a slurries pump with the slurry pool 10 inside tower body 1, is realized to slurry
Liquid pool 10 is fed.
With continued reference to Fig. 2, spraying layer 11 is provided with four layers in this programme, and every layer connects with a slurry circulating pump 12 respectively
Connect, spraying layer 11 includes a main pipe 13 that can be connected with slurry circulating pump 12 and some branch pipes 14, branch pipe 14 are arranged at tower
Inside body 1, nozzle 15 is arranged on branch pipe 14 regularly.By optimizing arrangement to nozzle 15, the ascending zone of tower body 1 is set to break
Almost completely homogeneously sprayed on face, it is ensured that fully contacted with flue gas.
Tower body 1 is additionally provided with as mixer 16 in the both sides of slurry pool 10（Reference picture 2）The motor with paddle,
It is the solid in slurries is maintained suspended state, and scattered oxidation air that it, which is acted on, to prevent sedimentation caking in slurry pool 10
And influence the recycling of desulfurization slurry.
Fig. 1 is returned to, intake section 3 is arranged in the side wall of tower body 1 of the lower end of spraying layer 11 and the upper end of slurry pool 10, including
One flue 17, what leading portion and the boiler tail of flue 17 came flue gas are entered by air-introduced machine, are then drained into tower body 1
Portion.An air door 18 is provided with flue 17 simultaneously, the structure of air door 18 can be common air door 18, as long as keying can be realized
Flue 17.
Reference picture 1 and Fig. 3, synergy portion 4 are arranged on the outlet of flue 17 top and the spraying layer 11 of bottom of intake section 3
Lower section, including synergistic device 19 and CPR dust 20.Wherein CPR dust 20 is arranged in the positive lower end of every layer of spraying layer 11, the CPR dust
20 be to be located at turn around revolving body made of the metal of axle with the central axis of the tower body 1, and the surface of revolution of revolving body is in positive triangle
Shape, while the sidewall weld of right-angle side is on the inwall of tower body 1, while inwall is obliquely installed, incline direction is downward shrink mouth shape, should
CPR dust 20 is preventing flue gas from escaping, and slurries wash away to the inwall of tower body 1.
Reference picture 1 and Fig. 4, synergistic device 19 include the fixing pipe 19.1 being fixed on the inwall of tower body 1, while fixing pipe 19.1
Middle part is connected with a helical blade 19.2, and the outer end of the blade on helical blade 19.2 is welded on the inwall of fixing pipe 19.1.Cause
And a vortex can be formed after flue gas enters from flue 17, during rising, make the air flow method on same section uniformly and add
Mass transfer effect between flue gas and slurries by force, effectively improve the desulfuration efficiency of slurries.Set in the lower end of fixing pipe 19.1 in enlarging
Put, enabling by fume centralized at the middle part of fixing pipe 19.1, while the upper end tube nozzle of fixing pipe 19.1 is located at CPR dust 20
Middle part so that can be overlapped when flue gas rises with the atomization slurry of whereabouts so that desulfurization is more concentrated, enhancing desulfurization effect
Fruit.
Reference picture 1, oxidation fan 8.1 as oxygen supply portion 8 and the oxygen for connecting tower body 1 are also associated with the side of tower body 1
Wind transmission pipe 8.2 forms, and is predominantly supplied oxygen inside tower body 1, and then improves the oxygen content in flue gas, to improve the desulfurization of slurries
Efficiency.
Reference picture 1 and Fig. 6, demisting portion 5 is provided with above spraying layer 11, for isolating the drop of tower flue gas carrying,
Ensure that the drop of exiting flue gas is not more than 75mg/Nm3.The structure in demisting portion 5 can use the most commonly used in the prior art
Structure, two-stage demister 21 is provided with, while is provided with each upper and lower ends of demister 21 and rinses pipe fitting 22；Flue gas stream
During through demister 21, drop is trapped on demisting piece.Because the drop being detained also contains solid, composition is mainly stone
Cream, therefore the danger of fouling be present, demister 21 needs flushing pipe fitting 22 periodically to carry out on-line cleaning.
Reference picture 1, Fig. 6, Fig. 7：
Electric precipitation portion 6 is additionally provided with the upper end of demisting portion 5, the drop carried for separating flue.Electric precipitation portion 6 includes solid
The casing 23 being scheduled on the inside of tower body 1, the outer wall of casing 23 are connected with tower body 1 by welding and are isolated upper and lower ends, together
When be distributed with casing 23 more be in hexa-prism anode tubes 24, between the side wall of anode tube 24 and adjacent anode tube 24
Mutually abut, i.e., side wall is connected with each other, and the axial direction of anode tube 24 is identical with the short transverse of tower body 1；Simultaneously when anode tube 24 it
Between mutually abut after, the middle cavity of a hexagon can be formed between every six anode tubes 24, upper end of cavity is provided with one in this
Cover plate 27, the week of cover plate 27, which surveys, to be fixed in the top side wall of anode tube 24, while middle cavity upper end closed, formation one are supplied into tower
The inlet chamber 26 that the flue gas of the lower section of body 1 enters.
Air-vent 29 is distributed with the side wall of anode tube 24, and the lower end of another aspect anode tube 24 is provided with baffle plate 28, by sun
Closed the lower end of pole pipe 24 so that the lower end that flue gas is unable to anode tube 24 is entered in anode tube 24, can only be introduced into
In air cavity 26, then entered by those air-vents 29 inside anode tube 24, finally discharge, pass through from the upper end of anode tube 24
By flue gas shunting this to and flue gas liquidates when entering 24 inside of anode tube, greatly reduces the flow velocity of flue gas.
Electric precipitation portion 6 also includes the cathode line as corona discharge electrode 25, and cathode line is penetrated inside anode tube 24, and both ends lead to
Cross and be fixed in tower body 1 and set a roof beam in place positioned at the upper Vierendeel girder and lower frame of the upper and lower ends of casing 23 so that corona discharge electrode 25 is tight to be located at
In anode tube 24, discharged.When corona discharge electrode 25 is fed through the baffle plate 28 of positive plate lower end, a modeling can be set on baffle plate 28
Expect dead ring 30, prevent from being in contact between corona discharge electrode 25 and anode tube 24.
When flue gas is discharged from demisting portion 5, enter in the inlet chamber 26 on casing 23, then entered by air-vent 29
Into anode tube 24.When anode tube 24 and cathode line are discharged jointly, the negatron in cathode line can be adsorbed in flue gas
Impurity, impurity are then close to the inwall of anode tube 24 and adsorbed；Electric precipitation portion 6 play fine particle in purifying smoke again and
Droplet, last flue gas are discharged from tower body 1.The flow velocity that flue gas is entered in anode tube 24 substantially reduces, and then improves and bear
The binding time of electronics, purification efficiency is improved, while flue gas can be directly over the inwall of anode tube 24, according to Coulomb's law, bear
Electronics is closer to anode tube 24, and the absorption affinity of anode tube 24 is bigger, and then the also relative purification efficiency for improving flue gas.
It is additionally provided with the upper and lower ends of casing 23 and is sprayed pipeline 31（Reference picture 7）, to the inwall of anode tube 24 and outside
Wall is adsorbed with impurity and is rinsed, as long as being sprayed the fog-spray nozzle of pipeline 31 under the upper end import of anode tube 24 and inlet chamber 26
Import is held, being sprayed pipeline 31 needs intermittent cleaning anode tube 24, collected suspension liquid and flushing water
The slurry pool 10 of absorption tower bottom is flowed into, plasma discharge de-watering section 7 is entered together with desulfurization wastewater, is recycled after purified treatment.
Applied on synergistic device 19 and the inwall of CPR dust 20 in the inwall of tower body 1, the inwall of casing 23, synergy portion 4 and be formed with glass
Glass scale layer, to improve the overall antiseptic effect of equipment and durability, extend its service life.
Specific embodiment is only that it is not to limitation of the present utility model, this area to explanation of the present utility model
Technical staff can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but only
All to be protected in right of the present utility model by Patent Law.
Claims (6)
1. a kind of boiler desulfurization absorption plant of flue gas deep purifying, including tower body (1), the tower body (1) is divided from bottom to top
Do not include：
For slurry portion (2), including the feed portion (9) of lime stone is provided, produces the slurry pool (10) and injection desulfurization of desulfurization slurry
The spraying layer (11) and the slurry circulating pump (12) of the connection spraying layer (11) and the slurry pool (10) of slurries,
Intake section (3), between the slurry pool (10) and the spraying layer (11), enter for flue gas,
Demisting portion (5), positioned at the spraying layer (11) top, the drop carried for purifying smoke,
Electric precipitation portion (6), for again being purified flue gas,
Synergy portion (4), between the intake section (3) and the spraying layer (11)；It is characterized in that：The synergy portion (4)
Including the synergistic device (19) below the spraying layer (11), the synergistic device (19) includes being fixed in the tower body (1)
The fixing pipe (19.1) of wall, the circumferentially distributed helical blade (19.2) in the fixing pipe (19.1) inwall.
A kind of 2. boiler desulfurization absorption plant of flue gas deep purifying according to claim 1, it is characterised in that：It is described
Synergy portion (4) also includes the CPR dust (20) for being arranged at tower body (1) inwall below spraying layer (11).
A kind of 3. boiler desulfurization absorption plant of flue gas deep purifying according to claim 2, it is characterised in that：It is described
CPR dust (20) is the revolving body using the central axis of the tower body (1) as gyroaxis, and the surface of revolution of the revolving body is in triangle
Shape, the inner surface of the revolving body are inclined to set.
A kind of 4. boiler desulfurization absorption plant of flue gas deep purifying according to claim 3, it is characterised in that：It is described
Fixing pipe (19.1) lower end is set in enlarging, and the caliber of upper end is not more than the minimum-value aperture of the revolving body.
A kind of 5. boiler desulfurization absorption plant of flue gas deep purifying according to claim 1, it is characterised in that：It is described
Tower body (1) also includes being communicated with an oxygen supply portion (8).
A kind of 6. boiler desulfurization absorption plant of flue gas deep purifying according to claim 1, it is characterised in that：It is described
Tower body (1) inwall, the synergy portion (4), which apply, is formed with glass flake layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720568760.1U CN206881489U (en) | 2017-05-22 | 2017-05-22 | A kind of boiler desulfurization absorption plant of flue gas deep purifying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720568760.1U CN206881489U (en) | 2017-05-22 | 2017-05-22 | A kind of boiler desulfurization absorption plant of flue gas deep purifying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206881489U true CN206881489U (en) | 2018-01-16 |
Family
ID=61319833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720568760.1U Expired - Fee Related CN206881489U (en) | 2017-05-22 | 2017-05-22 | A kind of boiler desulfurization absorption plant of flue gas deep purifying |
Country Status (1)
| Country | Link |
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| CN (1) | CN206881489U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126432A (en) * | 2018-11-05 | 2019-01-04 | 梁秀旦 | A kind of high-efficiency desulfurization absorption tower |
| CN111991995A (en) * | 2020-07-20 | 2020-11-27 | 中国神华能源股份有限公司国华电力分公司 | Absorption tower and flue gas desulfurization system |
| CN113634097A (en) * | 2021-08-16 | 2021-11-12 | 德阳劲达节能科技有限责任公司 | Integrated dust removal desulfurization tower |
| CN114939336A (en) * | 2022-07-04 | 2022-08-26 | 杭州富丽达热电有限公司 | Coal-fired flue gas desulfurization denitration decarbonization device |
-
2017
- 2017-05-22 CN CN201720568760.1U patent/CN206881489U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126432A (en) * | 2018-11-05 | 2019-01-04 | 梁秀旦 | A kind of high-efficiency desulfurization absorption tower |
| CN111991995A (en) * | 2020-07-20 | 2020-11-27 | 中国神华能源股份有限公司国华电力分公司 | Absorption tower and flue gas desulfurization system |
| CN113634097A (en) * | 2021-08-16 | 2021-11-12 | 德阳劲达节能科技有限责任公司 | Integrated dust removal desulfurization tower |
| CN114939336A (en) * | 2022-07-04 | 2022-08-26 | 杭州富丽达热电有限公司 | Coal-fired flue gas desulfurization denitration decarbonization device |
| CN114939336B (en) * | 2022-07-04 | 2023-09-19 | 杭州富丽达热电有限公司 | Desulfurization, denitrification and decarbonization device for coal-fired flue gas |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200522 |
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| CF01 | Termination of patent right due to non-payment of annual fee |