CN114100336A - Flue gas desulfurization and dust removal integrated device - Google Patents
Flue gas desulfurization and dust removal integrated device Download PDFInfo
- Publication number
- CN114100336A CN114100336A CN202111135939.5A CN202111135939A CN114100336A CN 114100336 A CN114100336 A CN 114100336A CN 202111135939 A CN202111135939 A CN 202111135939A CN 114100336 A CN114100336 A CN 114100336A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- dust removal
- gas desulfurization
- desulfurization
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
-
- 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
Abstract
The invention discloses a flue gas desulfurization and dust removal integrated device, which comprises: the device body, the inside flue gas that is equipped with particulate matter entrapment main part district and sets up along the flue gas flow direction of device body advances the exhaust passage, and the afterbody is equipped with flue gas desulfurization circulating device. The particulate matter trapping main body area comprises a plurality of sub-chamber dust trapping filter bag areas and pulse blowing devices which are arranged in one-to-one correspondence with the sub-chambers. The integrated device for flue gas desulfurization and dust removal effectively solves the problem of integration of flue gas desulfurization and dust removal, and realizes efficient capture of particulate matters and sulfur dioxide in flue gas.
Description
Technical Field
The invention relates to the technical field of pollutant cleaning, in particular to a flue gas desulfurization and dust removal integrated device.
Background
With the requirement of ultra-low emission expanding from coal-fired power plants to industries such as metallurgy and cement, most of the existing flue gas purification equipment aims at single pollutants, not only is the resource wasted, but also the occupied area of facilities is large when various pollutants are treated. Therefore, it is necessary to develop a device for co-processing multiple pollutants.
Conventional SDS desulphurization unit sets up special desulfurizing tower and extension flue to guarantee sulfur dioxide in the desorption flue gas, this technical scheme can't solve the place less, can't arrange the occasion of two kinds of equipment of desulfurizing tower and dust remover simultaneously, even can satisfy and arrange two kinds of equipment of desulfurizing tower and dust remover simultaneously, also increased investment cost.
Disclosure of Invention
The present invention is directed to solving one of the above-mentioned problems in the prior art. In view of this, the invention needs to provide an integrated flue gas desulfurization and dust removal device which has small floor space and low implementation cost and can efficiently capture particulate matters and sulfur dioxide in flue gas.
The invention provides a flue gas desulfurization and dust removal integrated device, which comprises: the device body, the inside particulate matter entrapment main part district that is equipped with of device body, be equipped with the flue gas air inlet and outlet channel that sets up along the flue gas flow direction on the device body, the device afterbody is equipped with flue gas desulfurization circulating device, the particulate matter entrapment main part district includes a plurality of locellus dust entrapment filter bag districts and the pulse jetting device that sets up with every locellus one-to-one.
According to one embodiment of the invention, the particulate matter trapping body regions are arranged on two sides of the device body, and the flue gas inlet and outlet channels arranged along the flow direction of flue gas are arranged in the middle of the device body.
According to one embodiment of the invention, the flue gas inlet and outlet channels are arranged along the flow direction of flue gas and are two layers of inclined partition plates.
According to one embodiment of the invention, the tail part of the device is provided with a flue gas desulfurization circulating device, and the inside of the circulating device is provided with wear-resistant guide vanes.
According to one embodiment of the invention, the number of the chambers of the device body is 6, the chambers are symmetrically arranged on the left side and the right side of the body, and each chamber is provided with a group of pulse injection devices, wherein each pulse injection device comprises an injection tube and a nozzle which correspond to the filter bags one by one.
According to one embodiment of the invention, the inclined partition has an angle of 10 ° with the horizontal.
According to one embodiment of the invention, the flue gas flow velocity is 13.5 m/s.
According to one embodiment of the invention, the device further comprises a lift valve arranged at the top of the device body and an ash collecting hopper arranged at the lower part of the device body.
The integrated device for flue gas desulfurization and dust removal is characterized in that a flue gas inlet and a flue gas outlet are arranged at the same end of the device, and the flue gas enters from bottom to top, enters into the device body through the lower inlet, passes through the space between two layers of inclined partition plates, and is mixed into the flue gas through a nozzle from a flue in front of the flue gas inlet, and the mixing reaction is completed between the inclined partition plates, so that sulfur dioxide in the flue gas is removed; the flue gas reaches the desulfurization circulating device at the tail part of the device body, the desulfurizer is further mixed and reacted with sulfur dioxide in the flue gas, the desulfurizer is more uniformly dispersed in the flue gas, and the flue gas desulfurization efficiency is further improved; the flue gas flows along the lower side of the lower inclined partition plate after passing through the tail desulfurization circulating device, uniformly enters each chamber from the side surface of the ash collecting hopper at the lower part of each chamber on two sides, and dust in the flue gas and sulfate generated by reaction are removed through filtering of filter bags in each chamber, so that the purpose of simultaneously removing the dust and sulfur dioxide in the flue gas is achieved. Dust collected on the outer surface of the filter bag and sulfate generated by reaction are blown by the pulse blowing device at regular time or regular resistance, so that the dust is separated from the surface of the filter bag and falls into a dust collecting hopper at the lower part of the device body by the gravity of the dust collecting hopper. Through the setting of above-mentioned structure, effectively solved the problem of flue gas desulfurization dust removal integration, realized particulate matter and sulfur dioxide in an equipment desorption flue gas simultaneously.
Drawings
FIG. 1 is a first schematic structural diagram of a desulfurization and dust removal integrated device according to the present invention.
FIG. 2 is a schematic structural diagram II of an integrated desulfurization and dust removal device according to the present invention.
Reference numerals: 1-the device body; 2-a device body region; 3-air inlet and outlet channels; 4-a desulfurization circulating device; 5-a poppet valve; 6-air inlet bent pipe; 7-ash collecting hopper.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 2, an integrated device for flue gas desulfurization and dust removal comprises: the device body 1, the inside particulate matter entrapment main part district 2 that is equipped with of device body 1, be equipped with on the device body 1 along the flue gas flow direction setting and with the flue gas that particulate matter entrapment main part district 2 separates out the tuber pipe 3 that advances, particulate matter entrapment main part district 2 is including controlling locellus bag district 21, 22 and with every locellus bag district 21, the pulse jetting device 23 that 22 one-to-one set up, 24, wherein flue gas advances out tuber pipe 3 department and is equipped with oblique baffle 31 from top to bottom, device body 1 afterbody is equipped with desulfurization circulating device 4, device body 1 top sets up locellus poppet valve 5 (six rooms are 51 respectively, 52, 53, 54, 55, 56), device body 1 lower part sets up air inlet 6 and dust collecting bucket 7.
The invention relates to a flue gas desulfurization and dust removal integrated device.A particulate matter trapping main body area 2 and a flue gas inlet and outlet channel 3 separated from the particulate matter trapping main body area 2 are arranged on a device body 1, flue gas flows into the upper part of a desulfurization circulating device 4 along a channel between upper and lower inclined partition plates 31 and 32, flows into the lower part of the desulfurization circulating device 4 and flows along the lower side of the lower inclined partition plate 32 through the flow guide of a flow guide plate in the desulfurization circulating device 4, and respectively enters an ash collecting hopper 7 through an air inlet bent pipe 6 on each ash collecting hopper; the flue gas starts to rise and enters the particulate matter trapping main body area 2 after reaching the dust collecting hopper 7, the flue gas comprises left and right chamber-divided bag areas 21 and 22, the flue gas is filtered by filter bags arranged in the chamber-divided bag areas 21 and 22, and dust particles in the flue gas and sulfate particulate matters generated by desulfurization reaction are blocked and attached to the outer surfaces of the filter bags; after a certain amount of dust is attached to the outer surface of the filter bag, the pulse injection devices 23 and 24 which are arranged in one-to-one correspondence with the chamber bag areas 21 and 22 inject the interior of the filter bag to blow off the dust attached to the outer surface of the filter bag, and the dust falls into the lower dust collecting hopper 7 by virtue of the gravity of the dust. Through the arrangement of the structure, the integration of the flue gas desulfurization and dust removal device is realized.
As shown in fig. 1 and fig. 2, the flue gas inlet/outlet channel 3 includes an upper inclined partition plate 31 and a lower inclined partition plate 32, and the partition plate between the flue gas inlet/outlet channel 3 and the particulate matter trapping main body region 2, it should be understood that the flue gas inlet/outlet channel 3 at the middle position of the flue gas inlet/outlet channel 1 flows into the tail desulfurization circulating device 4, and the inclined partition plates 31 and 32 and the internal flow guide structure of the tail desulfurization circulating device 4 are flexibly adjusted according to different use conditions.
As shown in fig. 1 and 2, in the specific structural design of the invention, the flue gas inlet and outlet channel is a double-layer inclined partition plate, the inclined partition plate and the horizontal included angle are arranged at a preset angle, and the inclined partition plate and the horizontal included angle are 0-15 degrees.
In a specific structure, the inclined partition plate and the horizontal included angle are determined according to the size of dust particles and the flow velocity of flue gas in the air inlet channel and the air outlet channel, so that dust is prevented from settling, and the dust is prevented from being accumulated on the upper surface of the lower inclined partition plate 32 after settling.
As shown in figures 1 and 2, in the specific structural design of the invention, the flow velocity of the flue gas in the flue gas inlet/outlet channel is 5-15 m/s.
The bottom of the device body 1 is provided with a plurality of dust collecting hoppers 7 which are arranged corresponding to the particulate matter collecting main body area 2 so as to effectively collect dust collected by the filter bag and large particle dust in smoke, meanwhile, the air inlet bent pipes 6 are in one-to-one correspondence with the dust collecting hoppers 7, and the smoke uniformly passes through the air inlet bent pipes 6 and respectively enters the chamber bag areas 21 and 22 through the upper parts of the dust collecting hoppers 7.
As shown in fig. 1 and 2, the number of the chamber bag areas 21 and 22 is three, each chamber bag area 21 and 22 corresponds to one dust collecting hopper 7 and one pulse blowing device 23 and 24, and the pulse blowing devices 23 and 24 remove dust collected on the filter bags, fall into each dust collecting hopper and are discharged through the dust conveying device. It should be understood that the number of the chambered pockets 21, 22 is not limited to three, and may be three or less.
As shown in fig. 1, the included angles between the inclined partition plates 31 and 32 and the horizontal plane are 0 to 15 degrees, it should be understood that, for the difference of dust in the flue gas, the included angles between the inclined partition plates 31 and 32 and the horizontal plane are flexibly selected, wherein an internal flow guide device can also be adopted to achieve the lower emission requirement.
As shown in fig. 1 to 2, a specific embodiment of the integrated device for flue gas desulfurization and dust removal of the present invention is as follows:
two sides of the particulate matter trapping main body area 2 are provided with chamber-separating bag areas 21 and 22, the chamber-separating bag areas 21 and 22 are divided into 3 bag chambers along the flowing direction of flue gas, and each bag chamber corresponds to the ash collecting hopper 7 and the pulse blowing devices 23 and 24 one by one. The flue gas enters the device body 1 from the inlet, flows along the air inlet and outlet channel 3 in the middle of the device body 1 and reaches the upper part of the tail desulfurization circulating device 4, after passing through a flow guide device in the desulfurization circulating device 4, the flue gas enters the lower part of the inclined partition plate 32 from the lower part of the desulfurization circulating device 4 and then enters an air inlet bent pipe 6 communicated with the lower part of the inclined partition plate 32, the air inlet bent pipe 6 is communicated with the upper part of an ash collecting hopper 7, the flue gas flows upwards through the upper part of the ash collecting hopper 7 and enters the chamber bag areas 21 and 22 at two sides of the device body 1, and dust and desulfurization ash in the flue gas are blocked on the outer surface of a filter bag, when the pressure difference between the inside and the outside of the filter bag reaches a certain limit value or runs for a certain time, the pulse injection devices 23 and 24 are started, compressed gas with certain pressure and flow is sprayed into the filter bag, dust adsorbed on the surface of the filter bag is separated from the surface of the filter bag under the action of air flow in the filter bag and expansion of the filter bag, and falls into a dust collecting hopper 7 along with self weight. The clean smoke entering the filter bag upwards enters the upper part of the device body 1 in the chamber bag areas 21 and 22 at the two sides in the device body 1, a chamber lifting valve 5 (the six chambers are 51, 52, 53, 54, 55 and 56 respectively) is arranged at the top, the smoke enters the upper part of the inclined partition plate 31 in the air inlet and outlet channel 3, and is discharged into the atmosphere after entering the tail flue through the smoke outlet of the device body 1, so that the purpose of smoke dust removal is achieved. The desulfurizer required by the flue gas is sprayed into the flue gas from the flue in front of the device body 1, the desulfurizer and the flue gas are continuously mixed and reacted in the process that the flue gas passes through the air inlet and outlet channel 3 and the desulfurization circulating device 4, and the excessive desulfurizer can further react with sulfur dioxide in the flue gas after being attached to the surface of the filter bag along with dust, so that the desulfurization efficiency of the device is improved. Through actual measurement, the concentrations of the particulate matters and the sulfur dioxide in the flue gas at the flue gas outlet are respectively 3.5mg/Nm3 and 30mg/Nm 3.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The utility model provides an integrative device of flue gas desulfurization dust removal which characterized in that includes: the device body, the inside particulate matter entrapment main part district that is equipped with of device body, the flue gas that sets up along flue gas flow direction advances the exhaust passage, the device afterbody is equipped with flue gas desulfurization circulating device, the particulate matter entrapment main part district includes a plurality of locellus dust entrapment filter bag districts and the pulse jetting device that sets up with every locellus one-to-one.
2. The integrated flue gas desulfurization and dust removal device according to claim 1, wherein the body is provided with a particulate trapping body region inside, and the body region is arranged on one side or two sides and is provided with a plurality of sub-chambers.
3. The integrated flue gas desulfurization and dust removal device of claim 1, wherein the flue gas inlet and outlet channel is a double-layer inclined partition plate, and the double-layer inclined partition plate is arranged on one side or in the middle of the device body.
4. The integrated device for flue gas desulfurization and dust removal as claimed in claim 1, wherein a flue gas desulfurization circulating device is arranged at the tail of the device, and the desulfurization circulating device is of a labyrinth type circulating structure and a folded plate flow guide structure.
5. The integrated flue gas desulfurization and dust removal device of claim 1, wherein said pulse injection device is disposed in one-to-one correspondence with each compartment, wherein said pulse injection device comprises an injection tube disposed in one-to-one correspondence with each row of filter bags, said injection tube having a nozzle disposed in one-to-one correspondence with each row of filter bags.
6. The integrated device for flue gas desulfurization and dust removal according to claim 1, wherein the desulfurization process employs SDS desulfurization.
7. The flue gas inlet and outlet duct according to claim 3, wherein the inclined partition plate has an angle of 0 ° to 15 ° with respect to the horizontal.
8. The flue gas desulfurization circulating apparatus according to claim 4, wherein the flow velocity of the flue gas is 5m/s to 15 m/s.
9. The integrated flue gas desulfurization and dust removal device according to any one of claims 1 to 8, further comprising a poppet valve and a lower dust hopper provided at the top of the device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111135939.5A CN114100336A (en) | 2021-09-27 | 2021-09-27 | Flue gas desulfurization and dust removal integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111135939.5A CN114100336A (en) | 2021-09-27 | 2021-09-27 | Flue gas desulfurization and dust removal integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114100336A true CN114100336A (en) | 2022-03-01 |
Family
ID=80441429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111135939.5A Pending CN114100336A (en) | 2021-09-27 | 2021-09-27 | Flue gas desulfurization and dust removal integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114100336A (en) |
-
2021
- 2021-09-27 CN CN202111135939.5A patent/CN114100336A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205127642U (en) | Dust removal purification system of lime production line | |
| CN102350147B (en) | Integrative adsorptive dust collection device | |
| CN202497799U (en) | Fire coal flue gas adsorption mercury removal device | |
| CN205627573U (en) | System for dust and NOx minimum discharge under high temperature | |
| CN201030272Y (en) | Highly-concentrated separating spray blowcase pulse bag-type collector | |
| CN103785275A (en) | Desulfurization, dedusting and denitration integrated flue-gas purifier | |
| CN107866121A (en) | Calcination, fluidization stove dust arrester | |
| CN203663677U (en) | Smoke elimination, dust removal, deodorization and desulfurization equipment | |
| CN201320436Y (en) | Bag-type dust remover | |
| CN207270976U (en) | A kind of novel dust removing denitration desulfurizing tower | |
| CN102512901B (en) | Composite dust-removing and collaborative desulfurization and denitration device capable of wetting flue gas | |
| CN211025768U (en) | High temperature flue gas multi-pollutant integration is treatment equipment in coordination | |
| CN106761890B (en) | A kind of constructing tunnel dedusting smoke abatement secondary ventilation device | |
| CN112675698B (en) | Desulfurization, denitrification and dust removal device of turbulent bed in separate bin and process thereof | |
| CN202555101U (en) | Positioning blowback low-pressure impulsion bag type dust collector | |
| CN101648094B (en) | Double-inlet turbulence mixing type bag dust remover and dust removing method thereof | |
| CN203777911U (en) | Desulfuration, dedusting and denitration integrated flue gas cleaner | |
| CN210229575U (en) | Desulfurization and filtration integrated device | |
| CN114100336A (en) | Flue gas desulfurization and dust removal integrated device | |
| CN106268100A (en) | A kind of improvement type gravel bed filter | |
| CN202427313U (en) | Smoke humidification composite type dust-removing and synergistic desulfurization and denitration device | |
| CN211435748U (en) | Desulfurization, dust removal and denitration device for sintering flue gas | |
| CN209423334U (en) | A kind of low temperature SCR denitration dust removal integrated plant | |
| CN206881462U (en) | A kind of dry method flue gas pollutant integration removing means | |
| CN206081978U (en) | Improved type grained layer dust remover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |