CN205933355U - Outer aeration equipment of magnesium method flue gas desulfurization thick liquid tower - Google Patents
Outer aeration equipment of magnesium method flue gas desulfurization thick liquid tower Download PDFInfo
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- CN205933355U CN205933355U CN201620948753.XU CN201620948753U CN205933355U CN 205933355 U CN205933355 U CN 205933355U CN 201620948753 U CN201620948753 U CN 201620948753U CN 205933355 U CN205933355 U CN 205933355U
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- thick liquid
- aeration
- magnesium
- oxidation
- buffer pool
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model relates to a thick liquid oxidation aeration systems can arrange the thick liquid outward to magnesium desulphurization and handle, and COD and SS in the reduction thick liquid solve magnesium desulphurization waste water problem and can provide the outer aeration equipment of magnesium method flue gas desulfurization thick liquid tower that ensured earlier stage for the crystallization of magnesium sulfate concentration. Technical scheme: including two reaction tanks, characterized by: two reaction tank branches maybe thick liquid buffer pool and aeration oxidation pond, and wherein the thick liquid buffer pool provides stirring and oxidation air supply by three leaf roots fans, and the aeration oxidation pond provides stirring and oxidation air supply by multistage centrifugal fan, and the thick liquid conveys through the flotation pontoon pump between thick liquid buffer pool to aeration oxidation pond, all establishes liquid level, ph value monitoring facilities in thick liquid buffer pool and the aeration tank. Beneficial effect: the utility model discloses the creation is applicable to magnesium desulphurization's power plant, through carrying out the aeration to the thick liquid outside the tower, turns into magnesium sulfate solution with the magnesium sulfite thick liquid, and the conversion rate is greater than 85%.
Description
Technical field
This patent is related to slurries oxidation and aeration system, magnesium processes desulfurization can be processed outer plasma discharge liquid, reduce COD in slurries
And SS, solve the problems, such as magnesium processes desulfurization wastewater and can crystallize, for magnesium sulfate concentrate, the magnesium method flue gas desulphurization slurry tower providing early stage to ensure
Outer aerator.
Background technology
The outer plasma discharge liquid processing scheme of existing magnesium processes desulfurization and example are less, are divided into two kinds at present more：One kind is by outside desulfurization
Plasma discharge liquid drains into sedimentation basin and is precipitated, and using engineering machinery or grab claw, solid is cleared up, supernatant fluid reuse or drain into
Waste Water Treatment；Another kind is to be aoxidized in tower, slurries is largely converted in tower Adlerika and discharges
Through Waste Water Treatment, mainly for aluminum oxide magnesium processes desulfurization, the higher operating mode of oxygen content of smoke gas；Magnesium oxide method Wet smoke
Desulfurization technology, because its distinctive advantage, has gradually formed a kind of desulfurization new trend of more economical practicality, and magnesium processes desulfurization wastewater
And effective reuse of byproduct seriously restricts magnesium processes wet type desulfurizing technology and promotes on a large scale.
Utility model content
The purpose of this utility model is with reference to magnesium processes desulphurization plant itself, provides and exposes outside a kind of magnesium method flue gas desulphurization slurry tower
Device of air is it is intended to effectively solve big, big, byproduct recovery utilization rate difference of wastewater treatment difficulty of magnesium processes desulfurization slurry solid content etc.
Problem.
Technical scheme：Including two reaction tanks, it is characterized in that：Described two reaction tanks are slurries Buffer Pool and aeration respectively
Oxidation pond, wherein slurries Buffer Pool provide stirring and oxidation source gas by three leaves Roots blower, and aeration oxidation pool is by multistage centrifugal wind
Machine provides stirring and oxidation source gas, and between slurries Buffer Pool to aeration oxidation pool, slurries are transmitted by floating drum pump, and slurries buffer
It is all provided with liquid level, pH value monitoring device in pond and aeration tank.
The outer important reducing property that make use of magnesium sulfite of aeration process of magnesium method flue gas desulphurization slurry tower, the change during it
Learn reaction as follows：
Magnesium bisulfite first in solution, the magnesium sulfite and the oxygen of in the air that are slightly soluble in water react generation sulfuric acid
Magnesium, sulfuric acid；The sulfuric acid generating and six magnesium sulfite hydrate react generation magnesium sulfate, magnesium bisulfite and water；Magnesium bisulfite is same
When generate magnesium sulfate, water and sulfur dioxide with sulfuric acid reaction；Sulfur dioxide and six magnesium sulfite hydrate, hydroxide that reaction generates
Reactive magnesium generates magnesium sulfite, magnesium bisulfite and water, and part sulfur dioxide escapes with air simultaneously.
Its chemical equation is as follows：Mg(HSO3)2+O2= MgSO4+H2SO4
2MgSO3+O2= 2MgSO4
2MgSO3·6H2O+ H2SO4= MgSO4+ Mg(HSO3)2+11H2O
Mg(HSO3)2+ H2SO4= MgSO4+2H2O+2SO2
MgSO3·6H2O+ SO2= Mg(HSO3)2+5H2O
MgO+H2O=Mg(OH)2
Mg(OH)2+2SO2+5H2O= MgSO3·6H2O
Mg(OH)2+H2SO4= MgSO4+2H2O
Mg(OH)2+ Mg(HSO3)2+4 H2O =2MgSO3·6H2O
Outer important point of two reaction tanks of aeration process central apparatus of magnesium method flue gas desulphurization slurry tower, slurries Buffer Pool and aeration
Oxidation pond；The Main Function of slurries Buffer Pool has at 4 points：One is regulating pondage, and snubber tower slurries discharge capacity, for follow-up aeration
Oxidization processing system provides stable service condition；Two differences allowing for the magnesium sulfite concentration contained by the slurries plasma discharge of absorption tower
Different, equilibrium enters the water quality of follow-up aerating oxidation processing system；Three is that absorption tower slurries are larger through preaeration oxidation pH value fluctuation,
PH monitoring, adjustment equipment can be set in slurries Buffer Pool, with the pH value of stable slurry, reduce the shadow to follow-up aerating oxidation system
Ring.Four is that slurries Buffer Pool aeration can remove part magnesium sulfite suspension and COD, is that subsequent treatment eases off the pressure.Aeration
Primarily serving the purpose of of oxidation pond prevents the air aeration of precipitation from aoxidizing through playing stirring, reduces aeration oxidation pool slurries further
In magnesium sulfite content and COD, and adjusting water outlet pH value be 6 ~ 7, be that subsequent wastewater treatment eases off the pressure.
Beneficial effect
The invention is applied to the power plant of magnesium processes desulfurization, carries out aeration by tower is outer to slurries, by magnesium sulfite slurry
Liquid is converted into Adlerika, and conversion ratio is more than 85%, and this invention, for the first processing mode existing, can avoid sedimentation basin
Cleaning, reduces subsequent wastewater treatment difficulty, for processing mode in existing second, applied widely, and disposal ability is big, and not shadow
Ring the desulfuration efficiency of desulfurizing tower.
Brief description：Accompanying drawing 1 is the process flow diagram of the present embodiment.
Specific embodiment：
Referring to the drawings
The present embodiment includes two reaction tanks, it is characterized in that：Described two reaction tanks are slurries Buffer Pool and aeration respectively
Oxidation pond, wherein slurries Buffer Pool provide stirring and oxidation source gas by three leaves Roots blower, and aeration oxidation pool is by multistage centrifugal wind
Machine provides stirring and oxidation source gas, and between slurries Buffer Pool to aeration oxidation pool, slurries are transmitted by floating drum pump, and slurries buffer
It is all provided with liquid level, pH value monitoring device in pond and aeration tank.
Northern Shandong company desulfurization slurry out column aeration system is built together and is provided with two sets of slurries Buffer Pools and aeration oxidation pool, and builds
There are the buildings such as automatically controlled building, fan house, pump house, in automatically controlled building, be provided with height pressure control system and heat control system, blower fan is indoor
It is provided with 3 roots blowers, 5 Multi-stage centrifugal fans, in slurries Buffer Pool and aeration oxidation pool, is provided with tube aerator, expose
Tolerance is determined by experiment parameter, and net effect refers to table 1 effluent monitoring result table,
.
Claims (1)
1. the outer aerator of magnesium method flue gas desulphurization slurry tower, including two reaction tanks, is characterized in that：Described two reaction tanks are respectively
It is slurries Buffer Pool and aeration oxidation pool, wherein slurries Buffer Pool provides stirring and oxidation source gas, aeration by three leaves Roots blower
Oxidation pond provides stirring and oxidation source gas by Multi-stage centrifugal fan, and between slurries Buffer Pool to aeration oxidation pool, slurries pass through floating drum pump
Transmitted, in slurries Buffer Pool and aeration tank, be all provided with liquid level, pH value monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948753.XU CN205933355U (en) | 2016-08-26 | 2016-08-26 | Outer aeration equipment of magnesium method flue gas desulfurization thick liquid tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620948753.XU CN205933355U (en) | 2016-08-26 | 2016-08-26 | Outer aeration equipment of magnesium method flue gas desulfurization thick liquid tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205933355U true CN205933355U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620948753.XU Expired - Fee Related CN205933355U (en) | 2016-08-26 | 2016-08-26 | Outer aeration equipment of magnesium method flue gas desulfurization thick liquid tower |
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| CN (1) | CN205933355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790290A (en) * | 2019-12-18 | 2020-02-14 | 河南省睿博环境工程技术有限公司 | Method for producing high-purity magnesium sulfate from magnesium-method desulfurization waste residues |
-
2016
- 2016-08-26 CN CN201620948753.XU patent/CN205933355U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110790290A (en) * | 2019-12-18 | 2020-02-14 | 河南省睿博环境工程技术有限公司 | Method for producing high-purity magnesium sulfate from magnesium-method desulfurization waste residues |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |