CN208878220U - Powdered activated coke adsorpting desulfurization device - Google Patents
Powdered activated coke adsorpting desulfurization device Download PDFInfo
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- CN208878220U CN208878220U CN201821274620.4U CN201821274620U CN208878220U CN 208878220 U CN208878220 U CN 208878220U CN 201821274620 U CN201821274620 U CN 201821274620U CN 208878220 U CN208878220 U CN 208878220U
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- activated coke
- powdered activated
- coke
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- 239000000571 coke Substances 0.000 title claims abstract description 179
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 93
- 230000023556 desulfurization Effects 0.000 title claims abstract description 87
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 54
- 239000000779 smoke Substances 0.000 claims abstract description 27
- 230000008929 regeneration Effects 0.000 claims description 30
- 238000011069 regeneration method Methods 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 23
- 235000009508 confectionery Nutrition 0.000 claims description 21
- 239000000428 dust Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 15
- 238000000889 atomisation Methods 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 31
- 239000003546 flue gas Substances 0.000 abstract description 31
- 239000003463 adsorbent Substances 0.000 abstract description 13
- 238000001179 sorption measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 13
- 239000002245 particle Substances 0.000 description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 239000003517 fume Substances 0.000 description 6
- 238000000605 extraction Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of powdered activated coke adsorpting desulfurization device.The powdered activated coke adsorpting desulfurization device includes fluidized bed desulfurizing device, and fluidized bed desulfurizing device is provided with smoke inlet, powdered activated coke entrance and desulfurized gas outlet, and powdered activated coke entrance is for adding powdered activated coke.Compared to existing using granulated activated burnt to flue gas progress adsorption treatment, in powdered activated coke adsorpting desulfurization device provided by the present application, using finer and closely woven powdered activated coke as adsorbent, using fluidized bed desulfurizing device as desulfurizer, this utilization efficiency for being conducive to greatly improve adsorbent and SO2Removal efficiency, while number of devices is less, and occupied area is small, and investment and operating cost are lower.
Description
Technical field
The utility model relates to flue gas desulfurization fields, in particular to a kind of powdered activated coke adsorpting desulfurization device.
Background technique
By taking coal-burning boiler as an example, coal-burning boiler generallys use flue gas desulfurization device at this stage, wherein Gypsum Wet
Account for 90% or more.Gypsum Wet has many advantages, such as that desulfuration efficiency is high, desulfurizing agent is at low cost, is China SO2Emission reduction is made
Tremendous contribution, but with its large-scale application, also gradually expose some problems: 1) water consumption is big, wastewater discharge is big, this
It is very unfavorable to the power plant in water-deficient area, and the disposition of desulfurization wastewater also becomes problem.2) preparation of calcium-based desulfurizing agent needs
A large amount of calcium carbonate is consumed, the excessive exploitation of limestone resource is caused, does great damage to ecological environment；3) by-product desulfurization
The quality of gypsum is lower, and the value of secondary use is limited, causes a large amount of desulfurization products to be abandoned, causes secondary pollution.
Activated coke desulfurization technology is one of the mainstream technology of current flue gas Sulphur ressource emission reduction, has Sulphur ressourceization benefit
With, water consumption is few, non-wastewater discharge and multi-pollutant joint removing (SOX, VOCs, Hg etc.) the characteristics of.The activity of the existing country
Burnt desulfurization technology is mainly used in the purified treatment of steel industry sintering flue gas, sulfuric acid tail gas, ring collection flue gas, there is no power plant industrial
The report of application.Industrial applications have been put into activated coke adsorption system using moving bed as reactor, but existing main
Problem:
1) activated coke of industrial application is the graininess sizing activated coke that diameter is 5~9mm, preparation process complexity, cost
Height, the price of activated coke per ton are up to 3000~8000 yuan, cause moving-bed active coke desulfurization technical operation at high cost.
2) in activated coke adsorbing and removing flue gas during pollutant, since seed activity coke size is larger, gas molecule
It is big to the diffusional resistance inside activated coke particle, cause activated coke utilization rate of inner surface low.
3) using moving bed as reactor, device volume is huge, takes up a large area, equipment investment height.
4) activated coke will cause the broken of seed activity coke in mobile bed operating operating process, cause activated coke mechanical
Loss.
Utility model content
The main purpose of the utility model is to provide a kind of powdered activated coke adsorpting desulfurization devices, to solve existing work
The low problem of the processing cost height and adsorption efficiency of property coke desulfurization technique.
To achieve the goals above, a kind of powdered activated coke adsorpting desulfurization device, powdery are provided according to the utility model
Activated coke adsorpting desulfurization device includes fluidized bed desulfurizing device, and fluidized bed desulfurizing device is provided with smoke inlet, powdered activated coke
Entrance and desulfurized gas outlet, powdered activated coke entrance is for adding powdered activated coke.
Further, powdered activated coke adsorpting desulfurization device further includes waterworks；Fluidized bed desulfurizing device setting atomization
Nozzle, atomizer are provided with water inlet and atomisation outlet, and water inlet is connected by hydraulic pipeline with waterworks, is atomized out
Mouth extends to the inside of fluidized bed desulfurizing device.
Further, along the axial direction of fluidized bed desulfurizing device, powdered activated coke entrance, atomisation outlet and smoke inlet
Height successively reduce.
Further, fluidized bed desulfurizing device includes cylinder, cylinder include from the bottom to top the storage ash bucket for being sequentially communicated setting,
The side wall of direct tube section is arranged in smoke inlet section, undergauge section, extension diameter section and direct tube section, desulfurized gas outlet and powdered activated coke entrance
On, smoke inlet is arranged on the side wall of smoke inlet section, and atomizer is arranged on the side wall of extension diameter section.
Further, extension diameter section is round table-like, and extension diameter section includes upper table surface and following table, the diameter and rotary table waist of following table
The angle of flare θ that line is formed is 50~70 °.
Further, extension diameter section is round table-like, and extension diameter section includes upper table surface and following table, the diameter and rotary table waist of following table
The angle of flare θ that line is formed is 55~60 °.
Further, fluidized bed desulfurizing device further includes discharge knockout drum, and discharge knockout drum is arranged at desulfurized gas outlet；
Preferably, discharge knockout drum is selected from trough plate or shutter.
Further, powdered activated coke adsorpting desulfurization device further include: bag-type dust collector, bag-type dust collector are provided with
Sweet gas entrance, sweet gas entrance are connected with desulfurized gas outlet by sweet gas transfer pipeline.
Further, powdered activated coke adsorpting desulfurization device further include: powdered activated coke feeding mechanism, powdered activated coke supply
Device is answered to be provided with powdered activated coke supply opening, sweet gas entrance is also connected with powdered activated coke supply opening.
Further, powdered activated coke adsorpting desulfurization device further includes pre-dedusting device, and pre-dedusting device is arranged in desulfurization
Letter shoot road.
Further, pre-dedusting device and bag-type dust collector are provided with discharge port；Fluidized bed desulfurizing device is also set up
There is powdered activated coke loop head, powdered activated coke adsorpting desulfurization device further includes circulation material-returning device, and circulation material-returning device is set
It is equipped with first discharge port and at least one feed inlet, at least one feed inlet is connected with discharge port correspondingly, first row
Material mouth is connected with powdered activated coke loop head.
Further, circulation material-returning device is additionally provided with the second discharge gate, and powdered activated coke adsorpting desulfurization device further includes
Active coke regeneration device, active coke regeneration device are provided with regeneration feed entrance, and regeneration feed entrance is connected with the second discharge gate
It is logical.
Further, powdered activated coke adsorpting desulfurization device further includes the first metering device, and the setting of the first metering device exists
On flow path between powdered activated coke supply opening and sweet gas entrance.
Further, powdered activated coke adsorpting desulfurization device further includes regeneration activity coke feeding mechanism and the second metering dress
It sets, regeneration activity coke feeding mechanism is provided with regeneration activity coke supply opening, regeneration activity coke supply opening and powdered activated coke entrance
It is connected；Second metering device is arranged on the flow path between regeneration activity coke supply opening and powdered activated coke entrance.
Using the technical solution of the utility model, after flue gas enters the fluidized bed desulfurizing device equipped with powdered activated coke, by
In the effect of air-flow, flue gas and the powdered activated coke as adsorbent generate fierce turbulence with mix, after coming into full contact with, SO2
Etc. being fully absorbed.Gas-particle two-phase stream mechanism in this recirculating fluidized bed is conducive to greatly strengthen the mass transfer between gas-particle two-phase,
To realize that high desulfurization rate provides basic guarantee.For flue gas in uphill process, particle a part is carried over fluidisation with sweet gas
Bed desulfurizer, because self weight returns in fluidized bed desulfurizing device, this is conducive to further increase fluid-bed sweetening a part
The granule density of powdered activated coke bed in device, while extending the action time of adsorbent.Purified ash-laden gas is from stream
The discharge of fluidized bed desulfurizing device.Compared to existing activated coke adsorbent equipment, powdered activated coke absorption desulfurization dress provided by the present application
In setting, using finer and closely woven powdered activated coke as adsorbent, using fluidized bed desulfurizing device as desulfurizer, this is conducive to pole
The earth improves the utilization efficiency and SO of adsorbent2Removal efficiency, while number of devices is less, and occupied area is small, investment and fortune
Row expense is lower.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows a kind of preferred powdered activated coke that a kind of preferred embodiment according to the present utility model provides
The structural schematic diagram of adsorpting desulfurization device；And
Fig. 2 shows a kind of a kind of preferred fluid-bed sweetenings that preferred embodiment provides according to the present utility model
The structural schematic diagram of device 20.
Wherein, the above drawings include the following reference numerals:
10, powdered activated coke feeding mechanism；101, powdered activated coke supply opening；11, the first metering device；
20, fluidized bed desulfurizing device；201, smoke inlet；202, powdered activated coke entrance；203, desulfurized gas outlet；21,
Atomizer；211, water inlet；22, direct tube section；23, extension diameter section；24, undergauge section；25, smoke inlet section；26, ash bucket is stored up；27,
Discharge knockout drum
30, waterworks；31, delivery pump；40, bag-type dust collector；401, sweet gas entrance；41, air-introduced machine；42, cloth
Bag dust collector locks gas batcher；43, bag filter discharge valve；50, pre-dedusting device；51, pre-duster returning charge lock gas feed
Machine；52, pre-duster outlet locks gas batcher；60, material-returning device is recycled；70, active coke regeneration device；80, regeneration activity is burnt
Feeding mechanism；81, the second metering device.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model is described in detail below in conjunction with embodiment.
As described in background technique, there are processing cost height and adsorption efficiencies for existing activated coke desulfurization technique
Low problem.In order to solve the above-mentioned technical problem, this application provides a kind of powdered activated coke adsorpting desulfurization devices, such as Fig. 1 institute
Show, powdered activated coke adsorpting desulfurization device includes fluidized bed desulfurizing device 20.Fluidized bed desulfurizing device 20 is provided with smoke inlet
201, powdered activated coke entrance 202 and desulfurized gas outlet 203, powdered activated coke entrance 202 is for adding powdered activated coke.
After flue gas enters the fluidized bed desulfurizing device 20 equipped with powdered activated coke, due to the effect of air-flow, flue gas and conduct
The powdered activated coke of adsorbent generate fierce turbulence with mix, after coming into full contact with, SO2Etc. being fully absorbed.This recycle stream
Change gas-particle two-phase stream mechanism in bed, be conducive to greatly strengthen the mass transfer between gas-particle two-phase, to realize that high desulfurization rate provides root
This guarantee.Flue gas is in uphill process, and particle a part is carried over fluidized bed desulfurizing device 20 with sweet gas, and a part is because certainly
It is returned in fluidized bed desulfurizing device 20 again, this is conducive to further increase powdered activated coke bed in fluidized bed desulfurizing device 20
The granule density of layer, while extending the action time of adsorbent.Purified ash-laden gas is discharged from fluidized bed desulfurizing device 20.
Compared to existing activated coke adsorbent equipment, in powdered activated coke adsorpting desulfurization device provided by the present application, with more
The close powdered activated coke of refinement is as adsorbent, and using fluidized bed desulfurizing device 20 as desulfurizer, this is conducive to greatly mention
The utilization efficiency and SO of high adsorbent2Removal efficiency, while number of devices is less, and occupied area is small, investment and operating cost
It is lower.
When carrying out desulfurization process to flue gas using powdered activated coke adsorpting desulfurization device provided by the present application, not only contribute to
It reduces processing cost, save floor occupying area, also advantageously improve desulfuration efficiency.In a preferred embodiment, such as Fig. 1 institute
Show, powdered activated coke adsorpting desulfurization device further includes waterworks 30；Atomizer 21, atomization is arranged in fluidized bed desulfurizing device 20
Nozzle 21 is provided with water inlet 211 and atomisation outlet, and water inlet 211 is connected with waterworks 30 by hydraulic pipeline, atomization
Outlet extends to the inside of fluidized bed desulfurizing device 20.Waterworks are set and coupled logical atomizer can be by water mist
It is sprayed into fluidized bed desulfurizing device 20 after change, so as to adjust the adsorption reaction temperature and water steaming in fluidized bed desulfurizing device 20
Gas content improves desulfuration efficiency.Preferably, above-mentioned atomizer 21 is double fluid atomization nozzle or high pressure atomizing nozzle.
Preferably, above-mentioned powdered activated coke adsorpting desulfurization device further includes delivery pump 31, which is arranged in water supply
On flow path between device 30 and the water inlet 211 of atomizer 21.
In a preferred embodiment, as shown in Figure 1, along fluidized bed desulfurizing device 20 axial direction, powdery is living
The height of property coke entrance 202, atomisation outlet and smoke inlet 201 successively reduces.By powdered activated coke entrance 202, atomisation outlet
And the height of smoke inlet 201 successively reduces when being arranged, and after flue gas can be made to enter fluidized bed desulfurizing device 20, first sprays in atomization
Mouth 21 be discharged it is spraying under the action of reduce temperature, desulfurization absorption is then carried out by powdered activated coke bed again.It is such to set
It is equipped at a temperature of being conducive to adjust sweetening process, and then is conducive to further increase desulfuration efficiency.
In above-mentioned powdered activated coke adsorpting desulfurization device provided by the present application, fluidized bed desulfurizing device 20 can use ability
The common structure in domain, as long as can be realized the function of adsorbing desulfurization on fluidized bed.In a preferred embodiment, such as
Shown in Fig. 2, fluidized bed desulfurizing device 20 includes cylinder, which includes being sequentially communicated setting storage ash bucket 26, flue gas from the bottom to top
Entrance 25, undergauge section 24, extension diameter section 23 and direct tube section 22, desulfurized gas outlet 203 and powdered activated coke entrance 202 are arranged straight
On the side wall of cylinder section 22, smoke inlet 201 is arranged on the side wall of smoke inlet section 25, and atomizer 21 is arranged in extension diameter section 23
Side wall on.Compared to smoke inlet section 25, the caliber of undergauge section 24 is smaller, this is able to ascend the flue gas by undergauge section 24
Flow velocity.The outlet of storage ash bucket 26 is connect with the discharge valve of 20 bottom of fluidized bed desulfurizing device, can not be fluidized in tower for discharging
And it is deposited on the activated coke of the larger particles in storage ash bucket 26.
Preferably, extension diameter section 23 is round table-like, and extension diameter section 23 includes upper table surface and following table, the diameter and rotary table of following table
Stringcourse formed angle of flare θ be 50~70 °.Above-mentioned angle of flare includes but is not limited to above range, and is limited to above-mentioned
Be conducive to improve the contact area of flue gas and atomized liquid in range, to be conducive to improve the cooling efficiency of flue gas, simultaneously also
Be conducive to improve the contact area of the flue gas and powdered activated coke after cooling down, and then be conducive to improve the desulfuration efficiency to flue gas.
It is highly preferred that above-mentioned angle of flare θ is 55~60 °, this is conducive to further increase the desulfuration efficiency to flue gas.Preferably, undergauge
The height H of section 24 is 1~3m, more preferably 2m.
Preferably, atomizer 21 is arranged in above activated coke feed inlet on the cylinder of 1~3m, and the peace of atomizer 21
It is consistent with flow of flue gas direction in tower to fill direction, i.e., sprays water upwards along tower body；The quantity of atomizer 21 can be one or more,
For example one, injection point is located at the center of fluidized bed desulfurizing device 20；It is for example multiple, tower body of the injection point along absolute altitude where it
Circular cross section is uniformly arranged, and the tower body circular cross section that the circumscribed circular diameter that water spraying atomization is formed should be less than the absolute altitude is straight
Diameter, this is conducive to improve spraying and flue gas contact area, and then improves its rate of temperature fall to flue gas.
In a preferred embodiment, as shown in Fig. 2, fluidized bed desulfurizing device 20 further includes discharge knockout drum 27,
Discharge knockout drum 27 is arranged on desulfurized gas outlet 203.Due to some powdered activated coke in sweetening process with desulfurization cigarette
Gas discharge is arranged discharge knockout drum 27 in desulfurized gas outlet 203, can tentatively be divided the powdered activated coke in desulfurization fume
From, and then can reduce the concentration of the powdered activated coke into subsequent dust-extraction unit.Preferably, discharge knockout drum 27 is selected from
Trough plate or shutter.
In a preferred embodiment, as shown in Figure 1, powdered activated coke adsorpting desulfurization device further includes bag-type dust
Device 40.Bag-type dust collector 40 is provided with sweet gas entrance 401, and sweet gas entrance 401 is connected with desulfurized gas outlet 203.
Bag-type dust collector 40, which is arranged, to separate the gas-particle two-phase in desulfurization fume, and then reduces the powdery in desulfurization fume
The content of activated coke.As shown in Figure 1, above-mentioned powdered activated coke adsorpting desulfurization device further includes air-introduced machine 41, for accelerating cloth bag
The mass rate of emission of desulfurization fume in dust-extraction unit 40.
In a preferred embodiment, as shown in Figure 1, powdered activated coke adsorpting desulfurization device further includes powdered activated
Burnt feeding mechanism 10, powdered activated coke feeding mechanism are provided with powdered activated coke supply opening 101, and sweet gas entrance 401 is gone back and powder
Shape activated coke supply opening 101 is connected.Sweet gas entrance 401 is also connected with powdered activated coke supply opening 101 can be to cloth bag
Dust-extraction unit 40 adds fresh activated coke, and the member of the sulphur in desulfurization fume can be further decreased using its higher absorption property
Element.
In order to further increase the removal efficiency to the activated coke in desulfurization fume, it is preferable that as shown in Figure 1, powdery is living
Property coke adsorpting desulfurization device further include pre-dedusting device 50, pre-dedusting device 50 setting go out in sweet gas entrance 401 with sweet gas
On sweet gas transfer pipeline between mouth 203.Preferably, pre-dedusting device 50 is mechanical type inertia smoke duster, more preferably
For trough plate, shutter or cyclone separator.Be conducive to further increase its desulfurization effect using above-mentioned pre-dedusting device 50.
In a preferred embodiment, as shown in Figure 1, pre-dedusting device 50 and bag-type dust collector 40 are provided with
Discharge port；Fluidized bed desulfurizing device 20 is additionally provided with powdered activated coke loop head, and powdered activated coke adsorpting desulfurization device also wraps
Circulation material-returning device 60 is included, circulation material-returning device 60 is provided with first discharge port and at least one feed inlet, at least one charging
Mouth is connected with above-mentioned discharge port correspondingly, and first discharge port is connected with powdered activated coke loop head.
The discharging of the discharge port and bag-type dust collector 40 of the feed inlet and pre-dedusting device 50 of material-returning device 60 will be recycled
Mouth is connected, and the solid particle (powdered activated carbon) trapped through pre-dedusting device 50 and bag-type dust collector 40 can be made to pass through
Material-returning device 60 is recycled, returns and continues to participate in reaction in fluidized bed desulfurizing device 20, so recycle.At bag-type dust collector 40
The direct outlet of flue gas after reason.
Preferably, circulation material-returning device 60 is selected from mechanical powder material conveying device or gas skewed slot, more preferably buries scraper plate
Conveyer, pipeline chain conveyor or screw conveyor.
In a preferred embodiment, as shown in Figure 1, circulation material-returning device 60 is additionally provided with the second discharge gate, powder
Shape activated coke adsorpting desulfurization device further includes active coke regeneration device 70, and active coke regeneration device 70 is provided with regeneration feed and enters
Mouthful, regeneration feed entrance is connected with the second discharge gate.Be arranged active coke regeneration device 70 can will from circulation material-returning device 60
The powdered activated coke of middle discharge is regenerated, and then is reused.
Preferably, as shown in Figure 1, as shown in Figure 1, above-mentioned powdered activated coke adsorpting desulfurization device further includes bag filter
Gas batcher 42 is locked, bag filter locks gas batcher 42 and the discharge port of 40 bottom of bag-type dust collector passes through the first discharge duct
Road is connected, and the bag filter discharge valve 43 on the first discharge pipelines.Gas batcher 42 is locked by cloth by bag filter
Powdered activated coke in bag dust-extraction unit 40 drains into circulation material-returning device 60.
Preferably, as shown in Figure 1, above-mentioned powdered activated coke adsorpting desulfurization device further includes pre-duster returning charge lock gas feed
Machine 51 and pre-duster outlet lock gas batcher 52, and pre-duster returning charge lock gas batcher 51 is unloaded with 50 bottom of pre-dedusting device
Material mouth is connected by the second discharge pipelines, and pre-duster outlet locks the discharge port of gas batcher 52 and 50 bottom of pre-dedusting device
It is connected by third discharge pipelines.
In order to preferably control the inlet amount of powdered activated coke, in a preferred embodiment, powdered activated coke is inhaled
Attached desulfurizer further includes the first metering device 11, and the first metering device 11 is arranged in powdered activated coke supply opening 101 and desulfurization
On flow path between gas entrance 401.
In order to further increase the utilization rate of powdered activated coke, in a preferred embodiment, powdered activated coke is inhaled
Attached desulfurizer further includes regeneration activity coke feeding mechanism 80 and the second metering device 81, and regeneration activity coke feeding mechanism 80 is arranged
There is regeneration activity coke supply opening, regeneration activity coke supply opening is connected with powdered activated coke entrance 202；Second metering device 81 is set
It sets on the flow path between regeneration activity coke supply opening and powdered activated coke entrance 202.
SO2The control of concentration of emission: according to the SO at the smoke inlet of fluidized bed desulfurizing device 202Concentration, pass through control
The power output of first metering device 11 and the second metering device 81, to control the unadsorbed work for delivering into fluidized bed desulfurizing device 20
Property coke amount；Meanwhile the SO exported according to bag-type dust collector 402Concentration is used as checking the first metering device 11 and second
The regulation parameter of metering device 81, to guarantee to reach pollutant emission requirement.
The pressure drop of fluidized bed desulfurizing device 20 controls: the pressure drop of fluidized bed desulfurizing device 20 is by flue gas pressure drop and solid particle
Pressure drop two parts composition.Gas batcher 51 is locked by pre-duster returning charge, bag filter locks gas batcher 42 and circulation returning charge
Device 60 adjusts the recycling activated coke amount that fluidized bed desulfurizing device 20 is sent in control back to, it is ensured that the stabilization of its pressure drop, to protect
Concentration of solid particles needed for reaction in bed is demonstrate,proved.
The application is described in further detail below in conjunction with specific embodiment, these embodiments should not be understood as limitation originally
Apply for range claimed.
In embodiment 1 and comparative example 1, the composition of sulfur-containing smoke gas includes: N278% (dry), CO215% (dry), O2
6.55% (dry), SO20.05% (dry), impurity 0.4% (dry) and H2O 7.73% (wet).
Embodiment 1
Absorption desulfurization process is carried out to sulfur-containing smoke gas using powdered activated coke adsorpting desulfurization device shown in Fig. 1 and 2, wherein flowing
The angle of flare of fluidized bed desulfurizing device 20 is 60 DEG C, and the length of undergauge section 24 is 2m, and the granularity of powdered activated coke is 100 μm.
Treatment process is as follows: above-mentioned sulfur-containing smoke gas being passed through fluidized bed desulfurizing device 20 and carries out absorption desulfurization, obtains desulfurization
Flue gas, wherein the temperature in sweetening process is 105 DEG C, and activated coke bed layer pressure is 1600Pa, flow velocity of the flue gas in undergauge section 24
For 50m/s, the flow velocity of direct tube section 22 is 4.5m/s, and residence time of the flue gas in fluidized bed desulfurizing device 20 is 6s.
After processing, the desulfurization degree of sulfur-containing smoke gas is 99.3%.
Comparative example 1
With the difference of embodiment 1 are as follows: the fixed bed using graininess sizing activated coke as the adsorbent of 5~9mm is used to inhale
Adsorption device is as desulfurizer.The desulfurization degree of sulfur-containing smoke gas is 85%.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
Comparing embodiment 1 and comparative example 1 are it is found that using powdered activated coke adsorpting desulfurization device provided by the present application to sulfur-bearing
When flue gas carries out absorption desulfurization, be conducive to the desulfurization degree for improving sulfur-containing smoke gas.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (15)
1. a kind of powdered activated coke adsorpting desulfurization device, which is characterized in that the powdered activated coke adsorpting desulfurization device includes:
Fluidized bed desulfurizing device (20), the fluidized bed desulfurizing device (20) is provided with smoke inlet (201), powdered activated coke enters
Mouth (202) and desulfurized gas outlet (203), the powdered activated coke entrance (202) is for adding powdered activated coke.
2. powdered activated coke adsorpting desulfurization device according to claim 1, which is characterized in that the powdered activated coke absorption
Desulfurizer further includes waterworks (30)；
Atomizer (21) are arranged in the fluidized bed desulfurizing device (20), and the atomizer (21) is provided with water inlet (211)
And atomisation outlet, the water inlet (211) are connected with the waterworks (30) by hydraulic pipeline, the atomisation outlet prolongs
Extend to the inside of the fluidized bed desulfurizing device (20).
3. powdered activated coke adsorpting desulfurization device according to claim 2, which is characterized in that filled along the fluid-bed sweetening
Set the axial direction of (20), the height of the powdered activated coke entrance (202), the atomisation outlet and the smoke inlet (201)
Degree successively reduces.
4. powdered activated coke adsorpting desulfurization device according to claim 3, which is characterized in that the fluidized bed desulfurizing device
It (20) include cylinder, the cylinder includes the storage ash bucket (26) for being sequentially communicated setting, smoke inlet section (25), undergauge from the bottom to top
Section (24), extension diameter section (23) and direct tube section (22), the desulfurized gas outlet (203) and the powdered activated coke entrance (202) are set
It sets on the side wall of the direct tube section (22), the smoke inlet (201) is arranged on the side wall of the smoke inlet section (25),
The atomizer (21) is arranged on the side wall of the extension diameter section (23).
5. powdered activated coke adsorpting desulfurization device according to claim 4, which is characterized in that the extension diameter section (23) is circle
Mesa-shaped, the extension diameter section (23) include upper table surface and following table, the angle of flare θ that the diameter and rotary table stringcourse of the following table are formed
It is 50~70 °.
6. powdered activated coke adsorpting desulfurization device according to claim 5, which is characterized in that the diameter of the following table with
The angle of flare θ that rotary table stringcourse is formed is 55~60 °.
7. powdered activated coke adsorpting desulfurization device according to claim 1, which is characterized in that the fluidized bed desulfurizing device
It (20) further include discharge knockout drum (27), the discharge knockout drum (27) is arranged at the desulfurized gas outlet (203).
8. powdered activated coke adsorpting desulfurization device according to claim 7, which is characterized in that the discharge knockout drum (27)
Selected from trough plate or shutter.
9. powdered activated coke adsorpting desulfurization device according to any one of claim 1 to 8, which is characterized in that the powder
Shape activated coke adsorpting desulfurization device further include: bag-type dust collector (40), the bag-type dust collector (40) are provided with sweet gas
Entrance (401), the sweet gas entrance (401) are connected with the desulfurized gas outlet (203) by sweet gas transfer pipeline.
10. powdered activated coke adsorpting desulfurization device according to claim 9, which is characterized in that the powdered activated coke is inhaled
Attached desulfurizer further include: powdered activated coke feeding mechanism (10), the powdered activated coke feeding mechanism (10) are provided with powdery
Activated coke supply opening (101), the sweet gas entrance (401) are also connected with the powdered activated coke supply opening (101).
11. powdered activated coke adsorpting desulfurization device according to claim 10, which is characterized in that the powdered activated coke is inhaled
Attached desulfurizer further includes pre-dedusting device (50), and the pre-dedusting device (50) is arranged on the sweet gas transfer pipeline.
12. powdered activated coke adsorpting desulfurization device according to claim 11, which is characterized in that the pre-dedusting device
(50) and the bag-type dust collector (40) is provided with discharge port；It is living that the fluidized bed desulfurizing device (20) is additionally provided with powdery
Property coke loop head, the powdered activated coke adsorpting desulfurization device further includes circulation material-returning device (60), and the circulation returning charge fills
Set (60) and be provided with first discharge port and at least one feed inlet, at least one described feed inlet correspondingly with the discharging
Mouth is connected, and the first discharge port is connected with the powdered activated coke loop head.
13. powdered activated coke adsorpting desulfurization device according to claim 12, which is characterized in that the circulation material-returning device
(60) it is additionally provided with the second discharge gate,
The powdered activated coke adsorpting desulfurization device further includes active coke regeneration device (70), the active coke regeneration device (70)
It is provided with regeneration feed entrance, the regeneration feed entrance is connected with second discharge gate.
14. powdered activated coke adsorpting desulfurization device according to claim 10, which is characterized in that the powdered activated coke is inhaled
Attached desulfurizer further includes the first metering device (11), and the first metering device (11) setting is supplied in the powdered activated coke
On flow path between mouth (101) and the sweet gas entrance (401).
15. powdered activated coke adsorpting desulfurization device according to claim 1, which is characterized in that the powdered activated coke is inhaled
Attached desulfurizer further include:
Regeneration activity coke feeding mechanism (80), the regeneration activity coke feeding mechanism (80) are provided with regeneration activity coke supply opening,
The regeneration activity coke supply opening is connected with the powdered activated coke entrance (202)；
Second metering device (81), second metering device (81) are arranged in the regeneration activity coke supply opening and the powdery
On flow path between activated coke entrance (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821274620.4U CN208878220U (en) | 2018-08-08 | 2018-08-08 | Powdered activated coke adsorpting desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821274620.4U CN208878220U (en) | 2018-08-08 | 2018-08-08 | Powdered activated coke adsorpting desulfurization device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722114A (en) * | 2018-08-08 | 2018-11-02 | 国家能源投资集团有限责任公司 | Powdered activated coke adsorpting desulfurization device and the method that absorption desulfurization is carried out to flue gas using it |
| CN110075662A (en) * | 2019-05-31 | 2019-08-02 | 中石化炼化工程（集团）股份有限公司 | The device and method of SOx and NOx pollutant in a kind of removing regeneration fume from catalytic cracking |
-
2018
- 2018-08-08 CN CN201821274620.4U patent/CN208878220U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722114A (en) * | 2018-08-08 | 2018-11-02 | 国家能源投资集团有限责任公司 | Powdered activated coke adsorpting desulfurization device and the method that absorption desulfurization is carried out to flue gas using it |
| CN110075662A (en) * | 2019-05-31 | 2019-08-02 | 中石化炼化工程（集团）股份有限公司 | The device and method of SOx and NOx pollutant in a kind of removing regeneration fume from catalytic cracking |
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