CN108246008A - A kind of sodium bicarbonate dry-process deacidification technique - Google Patents
A kind of sodium bicarbonate dry-process deacidification technique Download PDFInfo
- Publication number
- CN108246008A CN108246008A CN201810038777.5A CN201810038777A CN108246008A CN 108246008 A CN108246008 A CN 108246008A CN 201810038777 A CN201810038777 A CN 201810038777A CN 108246008 A CN108246008 A CN 108246008A
- Authority
- CN
- China
- Prior art keywords
- sodium bicarbonate
- flue gas
- retort
- grinder
- bag filter
- 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
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 title claims abstract description 80
- 229910000030 sodium bicarbonate Inorganic materials 0.000 title claims abstract description 40
- 235000017557 sodium bicarbonate Nutrition 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001035 drying Methods 0.000 title claims abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 11
- 239000008187 granular material Substances 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 229910001385 heavy metal Inorganic materials 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000003915 air pollution Methods 0.000 abstract description 2
- 239000003517 fume Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000002910 solid waste Substances 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-N sodium;hydron;carbonate Chemical compound [Na+].OC(O)=O UIIMBOGNXHQVGW-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
A kind of sodium bicarbonate dry-process deacidification technique, it is related to air pollution treatment and burns the improvement in fume treatment field (after the burnings such as solid waste, waste gas and waste liquid), and in particular to a kind of improvement of bag filter deacidifying process.The lower position of sodium bicarbonate storage tank has added a grinder, effect is that coarse granule sodium bicarbonate is ground into molecule, the retort of flow-guiding structure design, the residence time that can cause the reactive material in retort is relatively reasonable, it can adequately be reacted, novel cyclone type bag filter may be such that the efficiency of dust collection higher of flue gas.It is in the technique of the present invention, sodium bicarbonate is first passed through after grinder, sodium bicarbonate particle becomes tiny, improve the reaction effect of reactive material, it is to use novel cyclone type bag filter, dust removing effects are more preferable, are after the superposition of above three innovative technology effect, and whole flue gas treating process effect greatly enhances.
Description
Technical field
The present invention relates to the improvement in fume treatment field after air pollution treatment and the burnings such as burning, solid waste, waste gas and waste liquid,
More particularly to a kind of improvement of bag filter deacidifying process.
Background technology
In existing sodium bicarbonate dry-process deacidification technique, sodium bicarbonate, activated carbon (if containing heavy metal Huo bioxin in flue gas,
Then have, otherwise without) and flue gas directly reacted, drawback is that the particle of sodium bicarbonate is relatively large so that sodium bicarbonate using effect
Rate is low, and consumption is big, and cost is higher.
Referring to Fig. 1, existing sodium bicarbonate dry-process deacidification process flow chart：Flue gas, sodium bicarbonate, activated carbon in flue gas (if contain
Have heavy metal or bioxin, then have, otherwise without) be directly entered retort together, chemically reacted later, later through cloth bag
Deduster, flue gas is discharged by chimney after dedusting, and drawback is that sodium bicarbonate particle is relatively large, and service efficiency is low, and consumption is big,
Cost is higher.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of sodium bicarbonate dry-process deacidification technique,
It causes the service efficiency of sodium bicarbonate to greatly improve, and then improves sodium bicarbonate in retort, activated carbon (if containing weight in flue gas
Metal Huo bioxin, then have, otherwise without), the whole efficiency of flue gas.It is combined with the retort and New-type Swirl Flow of flow-guiding structure design
Formula bag filter so that the depickling efficiency of dust collection of whole system greatly improves.Improve sodium bicarbonate reaction efficiency so that retort
Interior reaction material reaction is more abundant, reduces the consumption of sodium bicarbonate adsorbent, saves cost；Reaction time in retort
Rationally, it can fully be reacted；Novel cyclone type bag filter high dust collection efficiency；The whole mating technique of three, significantly
Improve the whole depickling efficiency of dust collection of system.
To achieve the above object, the present invention is using following technical scheme：Sodium bicarbonate storage tank lower position has added one
A grinder, effect are that coarse granule sodium bicarbonate is ground into molecule.Boiler come out flue gas, the sodium bicarbonate by grinding,
Activated carbon (if having in flue gas containing heavy metal Huo bioxin, otherwise without) is chemically reacted together into retort.By
The sodium bicarbonate particle of grinding becomes very tiny, increases response area so that the service efficiency of sodium bicarbonate greatly improves, Jin Erti
The whole efficiency of sodium bicarbonate, activated carbon, flue gas in high bag filter.It is combined with the retort and novel of flow-guiding structure design
Spiral-flow type bag filter, the whole depickling efficiency of dust collection of system are greatly improved.
It is in the technique of the present invention, after sodium bicarbonate first passes through grinder, sodium bicarbonate particle becomes tiny, increases small
The response area of soda improves reaction efficiency, so as to improve the whole purified treatment efficiency of flue gas.Flow-guiding structure is combined with to set
The retort of meter and novel cyclone type bag filter, the whole depickling efficiency of dust collection of system are greatly improved.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is prior art sodium bicarbonate dry-process deacidification process flow chart；
Fig. 2 is the process flow chart of the present invention.
Specific embodiment
Referring to shown in Fig. 2, present embodiment the technical solution adopted is that：
It is realized by following processing step：Flue gas is directly entered retort, and coarse granule sodium bicarbonate (500 μm) passes through grinder
Enter retort after being crushed to 20 μm, activated carbon (if having in flue gas containing heavy metal or bioxin, otherwise without) is directly entered
Retort, in the retort of flow-guiding structure design flue gas, fine grained sodium bicarbonate and activated carbon (if in flue gas containing heavy metal or
Bioxin then has, otherwise without) reacted, relatively clean flue gas is can obtain after the completion of reaction, later, flue gas enters novel
Bag filter is dusted, and reaction residue discharges bag filter as lime-ash later, and remaining flue gas is discharged by chimney.
Flue gas, sodium bicarbonate after grinder is ground and activated carbon (if having in flue gas containing heavy metal Huo bioxin,
Otherwise without) together enter retort, later flow-guiding structure design retort in chemically reacted, cigarette after treatment
Gas is discharged by chimney, and residue is discharged as lime-ash.In technique the difference lies in the present invention, sodium bicarbonate passes through grinder
After grinding, sodium bicarbonate particle becomes tiny, increases the response area of sodium bicarbonate, reaction efficiency is improved, so as to improve cigarette
The purified treatment efficiency of gas and the use cost for reducing sodium bicarbonate.And the retort of flow-guiding structure design causes reactive material
Reaction time is reasonable, makes reaction more abundant, finally by the dedusting of novel bag-type dust remover, obtains meeting European Union EU2000/
The clean flue gas of 76 effluent standards requirement.
Present embodiment adds on the basis of traditional dry desulfurizing process in the lower position of sodium bicarbonate storage tank
One grinder.For sodium bicarbonate after grinding, particle becomes tiny so that and the service efficiency of sodium bicarbonate greatly improves, into
And improve activated carbon in retort (if having in flue gas containing heavy metal Huo bioxin, otherwise without), sodium bicarbonate, flue gas
Whole efficiency.Coordinate the retort and novel bag-type dust remover of flow-guiding structure design, improve system entirety depickling efficiency of dust collection.
The above is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, without departing from the spirit and scope of technical solution of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (3)
1. a kind of sodium bicarbonate dry-process deacidification technique, it is characterised in that：It is realized by following processing step：Flue gas is directly entered reaction
Tank, coarse granule sodium bicarbonate (500 μm) enter retort after being crushed to 20 μm by grinder, activated carbon is (if contain weight in flue gas
Metal Huo bioxin, then have, otherwise without) be directly entered retort, the flue gas, fine grained in the retort of flow-guiding structure design are small
Soda and activated carbon (if having in flue gas containing heavy metal Huo bioxin, otherwise without) are reacted, available after the completion of reaction
Clean flue gas relatively, later, flue gas enters novel bag-type dust remover and is dusted, and reaction residue is discharged as lime-ash later
Bag filter, remaining flue gas are discharged by chimney.
2. a kind of sodium bicarbonate dry-process deacidification technique according to claim 1, it is characterised in that：Flue gas, sodium bicarbonate are by grinding
After grinding machine grinding and activated carbon enters retort together, is chemically reacted, passed through in the retort of flow-guiding structure design later
Flue gas of crossing that treated is discharged by chimney, and residue is as lime-ash discharge.
3. a kind of sodium bicarbonate dry-process deacidification technique according to claim 1, it is characterised in that：Under sodium bicarbonate storage tank
Portion position has added a grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038777.5A CN108246008A (en) | 2018-01-16 | 2018-01-16 | A kind of sodium bicarbonate dry-process deacidification technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038777.5A CN108246008A (en) | 2018-01-16 | 2018-01-16 | A kind of sodium bicarbonate dry-process deacidification technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108246008A true CN108246008A (en) | 2018-07-06 |
Family
ID=62741209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810038777.5A Pending CN108246008A (en) | 2018-01-16 | 2018-01-16 | A kind of sodium bicarbonate dry-process deacidification technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108246008A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627335A (en) * | 2016-02-05 | 2016-06-01 | 江苏全能机电装备工程股份有限公司 | Ultra-clean treatment method for incinerated tail gas |
| CN106861415A (en) * | 2017-04-20 | 2017-06-20 | 北京高能时代环境技术股份有限公司 | Flue gas purification system and method |
-
2018
- 2018-01-16 CN CN201810038777.5A patent/CN108246008A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627335A (en) * | 2016-02-05 | 2016-06-01 | 江苏全能机电装备工程股份有限公司 | Ultra-clean treatment method for incinerated tail gas |
| CN106861415A (en) * | 2017-04-20 | 2017-06-20 | 北京高能时代环境技术股份有限公司 | Flue gas purification system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
|
| RJ01 | Rejection of invention patent application after publication |