CN106000043A - Single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device - Google Patents
Single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device Download PDFInfo
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- CN106000043A CN106000043A CN201610390173.8A CN201610390173A CN106000043A CN 106000043 A CN106000043 A CN 106000043A CN 201610390173 A CN201610390173 A CN 201610390173A CN 106000043 A CN106000043 A CN 106000043A
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 29
- 230000023556 desulfurization Effects 0.000 title claims abstract description 28
- 238000000746 purification Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000005406 washing Methods 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 39
- 239000003546 flue gas Substances 0.000 claims description 39
- 238000004140 cleaning Methods 0.000 claims description 22
- 239000006096 absorbing agent Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 17
- 239000003595 mist Substances 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 10
- 239000013618 particulate matter Substances 0.000 claims description 6
- 239000003500 flue dust Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 3
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 1
- 230000002411 adverse Effects 0.000 claims 1
- 230000001595 contractor effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 5
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000036632 reaction speed Effects 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- OXOZWDCLXMONSV-UHFFFAOYSA-N azane sulfurous acid hydrate Chemical compound O.N.S(O)(O)=O OXOZWDCLXMONSV-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device, and belongs to the field of environmental protection; the device is composed of an oxidation section, a concentration section, an absorption section, a purification water-washing section, a demisting section, a separation plate and a wet electric section. The upper part of the oxidation section of the device achieves gas communication with the concentration section through a pipeline, and liquid separation is achieved by the separation plate; the upper part of the concentration section of the device achieves gas communication and liquid separation with the absorption section through a liquid collecting tank; the upper part of the absorption section of the device achieves gas communication and liquid separation with the purification section through a liquid collecting tank; the demisting section of the device is located at the upper part of the purification section; the wet electric section of the device is located at the upper part of the demisting section. A reaction in the single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device is a gas-liquid reaction, the reaction speed is fast, the reaction is completed, and the desulfurization efficiency is high. The system realizes the requirement of ultralow emission, and is simple and concise in structure, easy to implement, low in cost, and favorable for wide popularization and utilization.
Description
Technical field
The present invention relates to field of environment protection, especially a kind of six sections of step cleaning and desulfurization dedustings of single column are ultralow
Discharge integrated apparatus.
Background technology
China is world's producing coal and coal-fired big country, and energy and environment are the two principal themes of Developing, tightly
It is connected and conflicting.
The sulfur dioxide that coal burning produces, this gas runs into sleet in the air at height and is dissolved into acid rain, can
Cause the large-area death of animals and plants, bring the biggest destruction to ecological environment, moreover it is possible to corrode commercial production
Equipment, brings the biggest impact to economy.The sulfur dioxide administered in flue gas has many methods: have burning
Before Desulphurization of fuels, desulphurization during combustion agent combustion process in desulfurization and burning after flue gas desulfurization.From mesh
The service condition of former world various countries is seen: for coal-burning boiler, and method most economical, effective is that flue gas takes off
Sulfur.
At present, flue gas desulfurization technique can be divided into multiple according to different division methods；Most common of which
Being that the thing according to operating process is mutually different, sulfur method can be divided into wet method, dry method and semidry method.Wet method takes off
The utilization rate of sulfur technology maturation, desulfuration efficiency and desulfurizing agent is high, reliable.
It is therefore it provides one is capable of minimum discharge requirement, and simple for structure clear, it is easy to accomplish,
The six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of the single column of low cost, beneficially wide popularization and application
Put and just become the technical barrier that this technical field is badly in need of solving.
Summary of the invention
For above-mentioned deficiency, one of the object of the invention is, it is provided that a kind of technique is simple, can be greatly
Reduce by six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of the single column of harmful constituent in fume emission
Put.
For achieving the above object, technical scheme provided by the present invention is:
A kind of six sections of step cleaning and desulfurization dedusting minimum discharge integrated apparatus of single column, it is characterised in that bag
Include: oxidation panel, enriching section, absorber portion, purification washing section, except mist section, dividing plate and wet electricity section；Institute
The top of the oxidation panel stating device realizes gas by pipeline with described enriching section and communicates, and is realized by dividing plate
Liquid is isolated；The top of the enriching section of described device realizes the gas phase with described absorber portion by collecting tank
Logical and liquid is isolated；The top of the absorber portion of described device realizes the gas with described clean-up stage by collecting tank
Body communicates isolates with liquid；Described device be positioned at the top of clean-up stage except mist section；The wet electricity of described device
Section is positioned at except the top of mist section.
Further, described oxidation panel, its effect is that absorbing liquid absorbs the ammonium sulfite oxygen formed after SO2
Turn to ammonium sulfate.This is oxidized to blast air by blower fan or compressor in oxidation panel liquid and aoxidizes,
Oxidation efficiency is not less than 99.8%, and residual air is ganged up pipe 6 by air and entered enriching section.
Further, described enriching section 2 directly contacts realization by liquid spray with high-temperature flue gas and concentrates work
With, remove most flue dust in flue gas, flue-gas temperature is reduced simultaneously.
Further, described absorber portion contacts with back flow of gas or by filler counter current contacting by absorbing liquid
Fully reacting, the SO in flue gas is fallen in removing2, and remove the flue dust in flue gas further.
Further, the flue gas that described water washing cleaning section is come with absorber portion by the circulating liquid relatively purified
Contact, the way of contact or directly contact, or contacted by filler, it is ensured that circulating liquid is sufficiently displaced from
Particulate matter in flue gas, removes flue gas and carries the particulate matter in droplet secretly.
Further, described by demister, droplet entrained in flue gas is removed except mist section, it is achieved
Gas cleaning.
Further, described wet electricity section passes through electrostatic adsorption by except small mist entrained in flue gas after mist
Drip and remove further, it is ensured that realize the qualified discharge of flue gas during flue gas working conditions change, as this device
Safety measures use.
The oxidation panel of six sections of step cleaning and desulfurization dedusting minimum discharge integrated apparatus of single column is by the liquid of absorber portion
Body carries out fully oxidized, and oxidation efficiency is not less than 99.8%.Well-oxygenated for oxidation panel liquid is carried out by enriching section
Concentrate, improve the ammonium sulphate content in liquid, remove in flue gas major part flue dust and reduce flue-gas temperature,
Condition is provided for absorber portion Absorption.Absorber portion is by suitable liquid-gas ratio, the suitable pH value of absorbing liquid
Carry out fully absorbing removing by the SO2 in flue gas, remove the dirt in flue gas further.Water washing cleaning section is led to
Crossing clear water spray, again purified by flue gas, make the salinity of liquid in this section reduce, SO2 remnants reduce.
Except the droplet carried in flue gas is removed by mist section, it is ensured that the smoke SO 2 that desulfurizing tower outlet is discharged is not higher than
35mg/Nm3, particulate matter is not higher than 5mg/Nm3, wet electricity section as final decontamination procedure, will be except mist section at
The flue gas of reason further purifies, and is purified thoroughly by the harmful substances such as grit therein, aerosol.
The invention have the advantages that:
In six sections of step cleaning and desulfurization dedusting minimum discharge integrated apparatus of single column that the present invention provides, reaction belongs to
Gas-liquid reaction, response speed is fast, and completely, desulfurization dust-removing efficiency is high in reaction.The cleanest by each section of effect
Change, reduce the SO2 in flue gas after desulfurization and dust content, be finally reached minimum discharge standard.The present invention
Desulfurizer achieve minimum discharge requirement, and simple for structure understand, it is easy to accomplish, low cost, profit
In wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the structural representation of six sections of step cleaning and desulfurization dedusting minimum discharge integrated apparatus of single column.
In figure: 1-oxidation panel；2-enriching section；3-absorber portion；4-purifies washing section；5-removes mist section；6-is empty
Gas gangs up pipe；7-dividing plate；8-absorber portion collecting tank；9-purifies washing section collecting tank；10-purifies washing section
Collecting tank；11-wet electricity section.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe.Obviously, described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
As shown in Figure 1: a kind of six sections of step cleaning and desulfurization dedusting minimum discharge integrated apparatus of single column include:
1-oxidation panel, 2-enriching section, 3-absorber portion, 4-purify washing section, 5-removes mist section, 6-air gangs up pipe,
7-dividing plate, 8-absorber portion collecting tank, 9-purify washing section collecting tank, 10-purifies washing section collecting tank, 11-
Wet electricity section, the top of the oxidation panel 1 of described device is ganged up pipe 6 by air and is realized gas with described enriching section 2
Communicate, realize liquid by dividing plate 7 and isolate；The top of the enriching section 2 of described device is realized by collecting tank 8
Communicate with the gas of described absorber portion 3 and isolate with liquid；Liquid collecting is passed through on the top of the absorber portion 3 of described device
Groove 9 realizes communicating with the gas of described clean-up stage 4 isolates with liquid；Except mist section 5 joins in the middle of wet electricity section 11
Logical.
The effect of the present invention shows: the method that the present invention provides belongs to gas-liquid reaction, and response speed is fast, instead
Should be complete, gas cleaning is carried out step by step, and adaptation condition change is extensively.
Detailed description of the invention: (aerosol and dirt are even with particulate form for the total particulate in flue gas after desulfurization
Embodying) content is not more than 5mg/Nm3, and it is measured and uses GB/T16157-1996 " Concentration in Fixed Pollutants Source
Middle particulate matter measures and the gaseous contaminant method of sampling " standard；The flue gas after desulfurization of existing desulphurization system
In total particulate content be 30mg/Nm3, reduce 83.3%, the SO2 content in flue gas after desulfurization is not
More than 35mg/Nm3, meet DB371-2373-2013 " Shandong Province's regionality atmosphere pollution comprehensive discharge
Standard ".
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment,
And without departing from the spirit or essential characteristics of the present invention, it is possible to real in other specific forms
The existing present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and
Being nonrestrictive, the scope of the present invention is limited by claims rather than described above, therefore purport
All changes in falling in the implication of equivalency and scope of claim are included in the present invention.
Should not be considered as limiting involved claim by any reference in claim.
The above, only presently preferred embodiments of the present invention, not in order to limit the present invention, every foundation
Any trickle amendment, equivalent and the improvement that above example is made by the technical spirit of the present invention, all
Within the protection domain of technical solution of the present invention should be included in.
Claims (7)
1. six sections of step cleaning and desulfurization dedusting minimum discharge integrated apparatus of a single column, it is characterised in that
Including: oxidation panel, enriching section, absorber portion, purification washing section, except mist section, dividing plate and wet electricity section；
The top of the oxidation panel of described device realizes gas by pipeline with described enriching section and communicates, real by dividing plate
Existing liquid isolation；The top of the enriching section of described device realizes the gas with described absorber portion by collecting tank
Communicate and isolate with liquid；The top of the absorber portion of described device is realized and described clean-up stage by collecting tank
Gas communicates isolates with liquid；Described device be positioned at the top of clean-up stage except mist section；Described device wet
Electricity section is positioned at except the top of mist section.
Six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of single column the most according to claim 1
Put, it is characterised in that: described oxidation panel, its effect is that absorbing liquid absorbs the sulfurous acid formed after SO2
Ammonium is oxidized to ammonium sulfate.This is oxidized to blast air in oxidation panel liquid by blower fan or compressor and carries out
Oxidation, oxidation efficiency is not less than 99.8%, and residual air is ganged up pipe 6 by air and entered enriching section.
Six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of single column the most according to claim 1
Put, it is characterised in that: described enriching section 2 directly contacted with high-temperature flue gas by liquid spray realize dense
Contracting effect, removes most flue dust in flue gas, and flue-gas temperature is reduced simultaneously.
Six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of single column the most according to claim 1
Put, it is characterised in that: described absorber portion contacts with back flow of gas or by filler adverse current by absorbing liquid
Contact is fully reacted, and the SO in flue gas is fallen in removing2, and remove the flue dust in flue gas further.
Six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of single column the most according to claim 1
Put, it is characterised in that: described water washing cleaning section is come by the circulating liquid of purification relatively and absorber portion
Flue gas contacts, the way of contact or directly contact, or is contacted by filler, it is ensured that circulating liquid is abundant
Particulate matter in displacement flue gas, removes flue gas and carries the particulate matter in droplet secretly.
Six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of single column the most according to claim 1
Put, it is characterised in that: described by demister, droplet entrained in flue gas is removed except mist section,
Realize gas cleaning.
Six sections of step cleaning and desulfurization dedusting minimum discharge one makeups of single column the most according to claim 1
Put, it is characterised in that: described wet electricity section by electrostatic adsorption by except entrained micro-in flue gas after mist
Little droplet removes further, it is ensured that realize the qualified discharge of flue gas during flue gas working conditions change, as this
The safety measures of device uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390173.8A CN106000043A (en) | 2016-06-06 | 2016-06-06 | Single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390173.8A CN106000043A (en) | 2016-06-06 | 2016-06-06 | Single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106000043A true CN106000043A (en) | 2016-10-12 |
Family
ID=57090690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610390173.8A Pending CN106000043A (en) | 2016-06-06 | 2016-06-06 | Single-tower six-section stepped purification desulfurization dust-removal and ultralow-emission integrated device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106000043A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203123776U (en) * | 2012-12-28 | 2013-08-14 | 云南亚太环境工程设计研究有限公司 | Novel cascade type ammonia process desulfurization and denitrification tower |
| CN203355586U (en) * | 2013-06-03 | 2013-12-25 | 北京国信恒润能源环境工程技术有限公司 | Multi-stage-absorption ammonia desulphurization system |
| CN103657349A (en) * | 2012-09-04 | 2014-03-26 | 阿尔斯通技术有限公司 | Desulphurization and cooling of process gas |
| US20160030883A1 (en) * | 2013-04-24 | 2016-02-04 | Jiangsu New Century Jiangnan Environmental Protection Co., Ltd. | Method and apparatus for treating acidic tail gas by using ammonia process flue gas |
| CN105597513A (en) * | 2016-01-29 | 2016-05-25 | 石家庄宇清环保科技有限公司 | Flue gas desulfurizing and dust removing device of coal-fired boiler |
-
2016
- 2016-06-06 CN CN201610390173.8A patent/CN106000043A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657349A (en) * | 2012-09-04 | 2014-03-26 | 阿尔斯通技术有限公司 | Desulphurization and cooling of process gas |
| CN203123776U (en) * | 2012-12-28 | 2013-08-14 | 云南亚太环境工程设计研究有限公司 | Novel cascade type ammonia process desulfurization and denitrification tower |
| US20160030883A1 (en) * | 2013-04-24 | 2016-02-04 | Jiangsu New Century Jiangnan Environmental Protection Co., Ltd. | Method and apparatus for treating acidic tail gas by using ammonia process flue gas |
| CN203355586U (en) * | 2013-06-03 | 2013-12-25 | 北京国信恒润能源环境工程技术有限公司 | Multi-stage-absorption ammonia desulphurization system |
| CN105597513A (en) * | 2016-01-29 | 2016-05-25 | 石家庄宇清环保科技有限公司 | Flue gas desulfurizing and dust removing device of coal-fired boiler |
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Application publication date: 20161012 |
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