CN110052150A - Single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measurement plasma discharge collection method and device - Google Patents
Single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measurement plasma discharge collection method and device Download PDFInfo
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- CN110052150A CN110052150A CN201910416975.5A CN201910416975A CN110052150A CN 110052150 A CN110052150 A CN 110052150A CN 201910416975 A CN201910416975 A CN 201910416975A CN 110052150 A CN110052150 A CN 110052150A
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- Prior art keywords
- tower
- slurries
- aft
- flue gas
- gas desulfurization
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- 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
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
Single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measure plasma discharge collection method, AFT tower Liquid level is at 20 meters or more during day-to-day operation, absorbing tower liquid-level is controlled at 10 meters or less, it is poor using AFT tower and absorbing tower liquid-level, the slurries of AFT tower densitometer or PH measurement buret discharge are introduced directly on the inlet tube of absorption tower lowest level spraying layer pipe slurry circulating pump, mix the slurries of discharge with the slurries that Xi Ta lower layer slurry circulating pump is absorbed into, it pumps through serum recycle to spraying layer and sprays, flue gas desulfurization is directly participated in, does not enter back into melt pit system.The present invention effectively shortens sump pump runing time, while improving desulfuration efficiency.Present invention process process is simple, and project amount is small, does not influence the operation of system normal table.
Description
Technical field
The invention belongs to single column Two-way Cycle flue gas desulfurization technique field, in particular to a kind of single column Two-way Cycle flue gas desulfurization skill
AFT tower serum density or pH value measurement plasma discharge collection method and device in art.
Background technique
Single column Two-way Cycle is that the coal-fired industry flue gas desulfurization such as thermal power generation, steel reaches minimum discharge index is taken one
Sulphur Dioxide in flue gas is sulfurous acid using the calcium ion in lime stone or carbide slag by the effective technology path of kind
Then calcium carries out that oxidation is forced to be converted into gypsum, achievees the purpose that desulfurization.In order in Accurate Determining AFT tower the density of slurries and
PH value generally says in AFT tower bottom and draws all the way that discharge pipe is to trench, packing density meter and PH meter on discharge pipe.In operational process
The density and pH value of middle AFT tower need continuous monitoring, therefore the slurries of the discharge pipe are constantly in long stream mode, and melt pit is caused to arrange
Stock pump runing time increases, and electrisity consumption increases.
Summary of the invention
The object of the invention is to overcome the problems, such as that existing single column Two-way Cycle flue gas desulfurization device exists, a kind of list is provided
AFT tower serum density or pH value measurement plasma discharge collection method and device in tower Two-way Cycle flue gas desulfurization technique.
Single column double circulation desulphurization system in the process of running, pH value of the pH value of slurries compared with slurries in absorption tower in AFT tower
Height, containing a large amount of calcium ions for not participating in desulphurization reactions completely in slurries in AFT tower, therefore in tower slurries to flue gas middle and high concentration
Sulfur dioxide has certain removing ability.The present invention is to utilize AFT tower and absorbing tower liquid-level poor, by AFT tower densitometer, pH value
Measurement sampling discharge pipe introduces absorb the bottom of the tower, no longer needs to fill into absorption tower through melt pit, effectively shortens sump pump runing time,
Reduce power consumption.Simultaneously because slurries starch AFT tower density to the removing ability of flue gas middle and high concentration sulfur dioxide in AFT tower
Meter or PH meter discharge pipe introduce absorb the bottom of the tower, improve desulfuration efficiency.
The technical scheme is that such: single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measurement row
Starch collection method, during day-to-day operation AFT tower Liquid level at 20 meters or more, absorbing tower liquid-level control at 10 meters hereinafter,
It is poor using AFT tower and absorbing tower liquid-level, it is most lower that the slurries of AFT tower densitometer or PH measurement buret discharge are introduced directly into absorption tower
On the inlet tube of layer spraying layer pipe slurry circulating pump, the slurries for being absorbed into the slurries of discharge and Xi Ta lower layer slurry circulating pump are mixed
It closes, pumps through serum recycle to spraying layer and spray, directly participation flue gas desulfurization does not enter back into melt pit system.Take AFT tower densitometer
Or PH meter measurement probe tube slurries, enter through control valve into this densitometer or PH meter, enters slurry through outlet and discharge control valve
The inlet tube of liquid circulating pump is mixed with slurry circulating pump from the slurries that absorption tower sucks, and sprays desulfurization into spraying layer.
AFT tower serum density or pH value measure plasma discharge collection device in single column Two-way Cycle flue gas desulfurization, which includes control
Valve processed, densitometer or PH meter, outlet, discharge control valve, slurry circulating pump and inlet tube, outlet one end and inlet tube phase
Connection, the other end is connected with AFT tower bottom end, and slurry circulating pump is equipped on inlet tube, and control valve, close is equipped on outlet
Degree meter or PH meter and discharge control valve, inlet tube are connected with absorption tower.
The present invention obtain it is following the utility model has the advantages that using the method for the present invention and device, do not need again by AFT tower measure density or
The slurries of the measurement of pH value are discharged into melt pit, are directly entered slurry circulating pump and participate in desulphurization reaction, effectively shorten melt pit pump operation
Time, while improving desulfuration efficiency.Present invention process process is simple, and project amount is small, does not influence the operation of system normal table.
Detailed description of the invention
Fig. 1 is that AFT tower densitometer of the present invention or PH count plasma discharge collection process and apparatus structure schematic diagram.
In figure: 1-AFT tower, 2- control valve, 3- densitometer or pH value meter, 4, outlet, 5- discharge control valve, 6- slurries
Circulating pump, 7- inlet tube, the absorption tower 8-, 9- spraying layer, 10- demister, 11- slurries collect bowl, 12- deflection cone.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, described
Embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Embodiment 1: single column Two-way Cycle flue gas desulfurization AFT tower PH meter, densitometer plasma discharge collection method take from bottom AFT tower 1
AFT tower densitometer or PH meter measurement sampling slurries, enter densitometer or PH meter 3 through control valve 2, control through outlet 4 and outlet
Valve 5 processed enters the inlet tube 7 of slurry circulating pump 6, mixes with slurry circulating pump from the slurries that absorption tower 8 sucks, into spraying layer 9
Spray desulfurization.
AFT tower serum density or pH value measure plasma discharge collection device in single column Two-way Cycle flue gas desulfurization, which includes control
Valve 2, densitometer or PH processed count 3, outlet 4, discharge control valve 5, slurry circulating pump 6 and inlet tube 7.4 one end of outlet with
Inlet tube 7 is connected, and the other end is connected with AFT tower bottom end, and slurry circulating pump 6 is equipped on inlet tube 7, is installed on outlet 4
There are control valve 2, densitometer or PH meter 3 and discharge control valve 5, inlet tube 7 to be connected with absorption tower 8.It is set on absorption tower 8
It is equipped with demister 10, spraying layer 9 and deflection cone 12, the upper end of inlet tube 7 is connected with AFT tower spraying layer.
The embodiment of the invention provides a kind of single column circulating flue gas desulfurization technology AFT tower densitometers or PH to count comb collection side
AFT tower densitometer or PH meter plasma discharge liquid are introduced the inlet tube of absorption tower lowest level spraying layer pipe slurry circulating pump by method and device,
So that the slurries of discharge is directly passed through absorption tower lower layer sprayed slurry circulating pump and participate in flue gas desulfurization, does not enter back into melt pit system.This
Invented technology process is simple, and project amount is small, does not influence the operation of system normal table.
Claims (3)
1. AFT tower serum density or pH value measure plasma discharge collection method in single column Two-way Cycle flue gas desulfurization, which is characterized in that in day
In normal operational process, AFT tower Liquid level is at 20 meters or more, and absorbing tower liquid-level control is at 10 meters hereinafter, using AFT tower and absorbing
The slurries of AFT tower densitometer or PH measurement buret discharge are introduced directly into absorption tower lowest level spraying layer pipe slurries by tower liquid level difference
On the inlet tube of circulating pump, mix the slurries of discharge with the slurries that absorption tower lower layer slurry circulating pump sucks, through serum recycle
It is pumped to spraying layer spray, directly participation flue gas desulfurization does not enter back into melt pit system.
2. plasma discharge collection method according to claim 1, which is characterized in that AFT tower densitometer or PH is taken to count measurement sampling
Pipe slurries enter densitometer or PH meter (3) through control valve (2), follow through outlet (4) and discharge control valve (5) into slurries
Ring pumps the inlet tube (7) of (6), mixes with slurry circulating pump from the slurries that absorption tower (8) suck, de- into spraying layer (9) spray
Sulphur.
3. AFT tower serum density or pH value measure plasma discharge collection device in single column Two-way Cycle flue gas desulfurization, which is characterized in that the dress
It sets including control valve (2), densitometer or PH meter (3), outlet (4), discharge control valve (5), slurry circulating pump (6) and entrance
It manages (7), outlet (4) one end is connected with inlet tube (7), and the other end is connected with AFT tower bottom end, and inlet tube is equipped on (7)
Slurry circulating pump (6) is equipped with control valve (2), densitometer or PH meter (3) and discharge control valve (5) on outlet (4),
Inlet tube (7) is connected with absorption tower (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416975.5A CN110052150A (en) | 2019-05-20 | 2019-05-20 | Single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measurement plasma discharge collection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910416975.5A CN110052150A (en) | 2019-05-20 | 2019-05-20 | Single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measurement plasma discharge collection method and device |
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| Publication Number | Publication Date |
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| CN110052150A true CN110052150A (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910416975.5A Pending CN110052150A (en) | 2019-05-20 | 2019-05-20 | Single column Two-way Cycle flue gas desulfurization AFT tower serum density or pH value measurement plasma discharge collection method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144431A (en) * | 2018-01-04 | 2018-06-12 | 台鹰环境工程有限公司 | High efficient gas and liquid cut-off equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160228818A1 (en) * | 2015-02-06 | 2016-08-11 | Johnson Matthey Public Limited Company | Three-way catalyst and its use in exhaust systems |
| CN205659543U (en) * | 2016-06-01 | 2016-10-26 | 山东中新环境工程有限公司 | Novel pallet means in two circulating absorption tower of single tower |
| CN205760585U (en) * | 2016-05-20 | 2016-12-07 | 山东中新环境工程有限公司 | Single column double circulation desulphurization system |
| CN206229197U (en) * | 2016-11-30 | 2017-06-09 | 山东省环境保护科学研究设计院 | One kind layering component single cycle spray desulphurization system |
| CN207694563U (en) * | 2017-12-25 | 2018-08-07 | 北京国电龙源环保工程有限公司 | A kind of desulfurization slurry collection device |
-
2019
- 2019-05-20 CN CN201910416975.5A patent/CN110052150A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160228818A1 (en) * | 2015-02-06 | 2016-08-11 | Johnson Matthey Public Limited Company | Three-way catalyst and its use in exhaust systems |
| CN205760585U (en) * | 2016-05-20 | 2016-12-07 | 山东中新环境工程有限公司 | Single column double circulation desulphurization system |
| CN205659543U (en) * | 2016-06-01 | 2016-10-26 | 山东中新环境工程有限公司 | Novel pallet means in two circulating absorption tower of single tower |
| CN206229197U (en) * | 2016-11-30 | 2017-06-09 | 山东省环境保护科学研究设计院 | One kind layering component single cycle spray desulphurization system |
| CN207694563U (en) * | 2017-12-25 | 2018-08-07 | 北京国电龙源环保工程有限公司 | A kind of desulfurization slurry collection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144431A (en) * | 2018-01-04 | 2018-06-12 | 台鹰环境工程有限公司 | High efficient gas and liquid cut-off equipment |
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Application publication date: 20190726 |