CN103349957A - Pan-bottom type oxidation and precipitation device in wet-process desulfurization of coal-fired flue gas - Google Patents
Pan-bottom type oxidation and precipitation device in wet-process desulfurization of coal-fired flue gas Download PDFInfo
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- CN103349957A CN103349957A CN2013102497298A CN201310249729A CN103349957A CN 103349957 A CN103349957 A CN 103349957A CN 2013102497298 A CN2013102497298 A CN 2013102497298A CN 201310249729 A CN201310249729 A CN 201310249729A CN 103349957 A CN103349957 A CN 103349957A
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- circulating water
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Abstract
The invention discloses a pan-bottom type oxidation and precipitation device in wet-process desulfurization of coal-fired flue gas. The pan-bottom type oxidation and precipitation device comprises a circulating water tank, wherein a bracket is arranged on the circulating water tank and is provided with a stirring machine and an oxidation fan; a returning water ditch is tangentially connected with the circulating water tank; an overflowing water port is formed in the circulating water tank; stirring blades of the stirring machine extend into the circulating water tank; an air pipe of the oxidation fan extends into the circulating water tank along the wall of the circulating water tank; a plurality of aeration ports are downwards formed in the air pipe. The pan-bottom type oxidation and precipitation device disclosed by the invention has the technical effects that slurry flows into the returning water ditch from a water outlet of an absorbing tower, and enters the circulating water tank along the tangential direction, the generated fluid power of the slurry pushes the slurry in the tank to flow in a rotating manner, the slurry in the tank is precipitated to the pan bottom in the tank, the oxidation fan blows oxygen to the slurry by the aeration ports in the air pipe, so that the slurry is fully oxidated to generate calcium sulphate dihydrate, the precipitated slurry is fully and uniformly stirred by the stirring machine, and the scale can not be generated at the pan bottom of the circulating water tank; the manufacture and the installation of the structure are simple, the maintenance is convenient, the cost is low and the effect is good.
Description
Technical field
The present invention relates to a kind of coal-fired flue-gas and carry out oxidation precipitation device in the wet desulphurization.
Background technology
At present, the desulfurization and dedusting of coal-fired flue-gas mainly adopted Wet Limestone-gypsum technique both at home and abroad, the oxidation precipitation of most of desulfurizer all is to be placed in the absorption tower to carry out, and this mode has following shortcoming: the one, and the process equipment fabrication and installation are complicated, and cost is higher; The 2nd, dust-removal and desulfurizing efficient is not high; The 3rd, be inconvenient to keep in repair.
Summary of the invention
The purpose of this invention is to provide the pot bottom type oxidation precipitation device in a kind of coal-fired flue-gas wet desulphurization.
Technical scheme of the present invention is, pot bottom type oxidation precipitation device in a kind of coal-fired flue-gas wet desulphurization, comprise circulating water pool, at circulating water pool support is housed, at support mixer, oxidation fan is housed, the backflow ditch tangentially connects circulating water pool, at the circulating water pool overflow mouth of a river, the stirring vane of mixer stretches into circulatory pool, and the airduct of oxidation fan follows the cisterna ambiens pool wall and stretches into circulatory pool, has a plurality of sudden and violent gas ports downwards at airduct.
Circulating water pool is form of pot bottom.
Overflowing water port is arranged on 200mm place on the circulating water pool slurries plane.
The stirring vane of mixer stretches into about 300mm place, plane, the circulatory pool the bottom of a pan.
The airduct of oxidation fan follows under the cisterna ambiens pool wall and arrives from stirring vane 1.2m place.
The present invention has following technique effect, flowing to the backflow ditch with the contacted slurries of flue gas from the absorption tower delivery port in the absorption tower enters in the circulating water pool with tangential direction, the slurry fluids power that is produced by the height fall of absorption tower and circulating water pool is pushing away that slurries rotate mobile in the pond, slurries in the pond are while producing oxidation the bottom of a pan precipitation in the pond. in this course, the oxidation fan that starts by the sudden and violent gas port on the airduct to slurries air blast oxygen supply, make slurries that oxidation fully occur and produce calcium sulphate dihydrate, produce fouling when preventing the sulfate dihydrate calcium precipitate, the mixer that starts stirs the slurries of precipitation under the effect of stirring vane. and make its slurries not produce fouling in the circulating water pool the bottom of a pan, slurries too much during the shut-down (breakdown) mainteance of absorption tower are by overflowing water port suction emergency storage tank; Fabrication and installation of the present invention are simple in structure, are convenient to maintenance, and cost is low effective.
Description of drawings
Fig. 1 is A-A cross section view of the present invention.
Fig. 2 is top view of the present invention.
The specific embodiment
Such as Fig. 1, shown in Figure 2, pot bottom type oxidation precipitation device in a kind of coal-fired flue-gas wet desulphurization, comprise circulating water pool 1, at circulating water pool 1 support 9 is housed, at support 9 dress mixers 4, oxidation fan 2, described circulating water pool 1 is form of pot bottom, the backflow ditch 6 tangential circulating water pools 1 that connect, overflowing water port 5 is arranged on 200 millimeters places, circulatory pool slurries plane, the stirring vane 7 of mixer 4 stretches into about 300 millimeters places, plane, circulatory pool 1 the bottom of a pan, the airduct 3 of oxidation fan 2 is along 1.2 meters arriving under the pool wall from stirring vane 7, and on airduct 3, have a plurality of sudden and violent gas ports 8 downwards, flowing to backflow ditch 6 with the contacted slurries of flue gas from the absorption tower delivery port in the absorption tower enters in the circulating water pool 1 with tangential direction, the slurry fluids power that is produced by the height fall of absorption tower and circulating water pool 1 is pushing away that slurries rotate mobile in the pond, slurries in the circulating water pool 1 are while producing the bottom of a pan precipitation of oxidation to circulating water pool 1, in this course, the oxidation fan 2 that starts by the sudden and violent gas port 8 on the airduct 3 to slurries air blast oxygen supply, make slurries that oxidation fully occur and produce calcium sulphate dihydrate, produce fouling when preventing the sulfate dihydrate calcium precipitate, the mixer 4 that starts stirs the slurries of precipitation under the effect of stirring vane 7, make its slurries not produce fouling in the bottom of a pan of circulating water pool 1, slurries too much during the shut-down (breakdown) mainteance of absorption tower are pumped into emergency storage tank by overflowing water port 5.
Claims (5)
1. the pot bottom type oxidation precipitation device in the coal-fired flue-gas wet desulphurization, comprise that circulating water pool (1) is characterized in that: at circulating water pool (1) support (9) is housed, at support (9) mixer (4) is housed, oxidation fan (2), backflow ditch (6) tangentially connects circulating water pool (1), at circulating water pool (1) the overflow mouth of a river (5), the stirring vane (7) of mixer (4) stretches into circulatory pool (1), the airduct (3) of oxidation fan (2) follows cisterna ambiens (1) pool wall and stretches into circulatory pool (1), has a plurality of sudden and violent gas ports (8) downwards at airduct (3).
2. the pot bottom type oxidation precipitation device in described a kind of coal-fired flue-gas wet desulphurization according to claim 1, it is characterized in that: circulating water pool (1) is form of pot bottom.
3. the pot bottom type oxidation precipitation device in described a kind of coal-fired flue-gas wet desulphurization according to claim 1, it is characterized in that: overflowing water port (5) is arranged on 200mm place on circulating water pool (1) the slurries plane.
4. the pot bottom type oxidation precipitation device in described a kind of coal-fired flue-gas wet desulphurization according to claim 1, it is characterized in that: the stirring vane (7) of mixer (4) stretches into circulatory pool (1) the about 300mm in plane, the bottom of a pan everywhere.
5. the pot bottom type oxidation precipitation device in described a kind of coal-fired flue-gas wet desulphurization according to claim 1 is characterized in that: the airduct (3) of oxidation fan (2) follows under cisterna ambiens (1) pool wall from stirring vane (7) 1.2m place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102497298A CN103349957A (en) | 2013-06-22 | 2013-06-22 | Pan-bottom type oxidation and precipitation device in wet-process desulfurization of coal-fired flue gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102497298A CN103349957A (en) | 2013-06-22 | 2013-06-22 | Pan-bottom type oxidation and precipitation device in wet-process desulfurization of coal-fired flue gas |
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| Publication Number | Publication Date |
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| CN103349957A true CN103349957A (en) | 2013-10-16 |
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| CN2013102497298A Pending CN103349957A (en) | 2013-06-22 | 2013-06-22 | Pan-bottom type oxidation and precipitation device in wet-process desulfurization of coal-fired flue gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349775A (en) * | 2017-08-22 | 2017-11-17 | 吉林工业职业技术学院 | For carrying out the wet type unit and method of desulfurizing and purifying to calcining carbon flue gas |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401413A (en) * | 2002-09-26 | 2003-03-12 | 济南市环境保护高新技术开发公司 | Flue gas desulfurizing process for heat and power boler |
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2013
- 2013-06-22 CN CN2013102497298A patent/CN103349957A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401413A (en) * | 2002-09-26 | 2003-03-12 | 济南市环境保护高新技术开发公司 | Flue gas desulfurizing process for heat and power boler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349775A (en) * | 2017-08-22 | 2017-11-17 | 吉林工业职业技术学院 | For carrying out the wet type unit and method of desulfurizing and purifying to calcining carbon flue gas |
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Application publication date: 20131016 |