CN102489098A - Device and method for purifying tail gases of power plants - Google Patents
Device and method for purifying tail gases of power plants Download PDFInfo
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- CN102489098A CN102489098A CN2011103719003A CN201110371900A CN102489098A CN 102489098 A CN102489098 A CN 102489098A CN 2011103719003 A CN2011103719003 A CN 2011103719003A CN 201110371900 A CN201110371900 A CN 201110371900A CN 102489098 A CN102489098 A CN 102489098A
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Abstract
The invention discloses a device for purifying tail gases of a power plants; the device comprises a spray tower and a gravitational dust collecting device, wherein the gravitational dust collecting device comprises a gravitational dust collector and a dust chamber; an inlet end of the spay tower is connected with one port of the gravitational dust collector; the other end of the gravitational dust collector is connected with a smoke outlet of a generator set; an activated carbon adsorption chamber is arranged at a connecting part between an inlet end of the spray tower and the gravitational dust collector; the spray tower comprises a draught fan chamber, a seperation filtering chamber, a chemical spay chamber, a steam-water separating chamber, a smoke discharging draught fan chamber, a peculiar smell adsorption camber and a negative ion smoking room which are sequentially connected; a spray water tank is arranged at the lower part of the spray tower; a water pump is arranged on the spray water tank; a water outlet of the water pump is communicated with a chemical spay chamber through a spray water pipe; and the bottom end of the chemical spray chamber is communicated with a spray pond through a water returning pipe. The invention also discloses a method for purifying the tail gases of the power plants. According to the method, the purification of the tail gases of the power plant can be realized, and the environmental pollution is avoided.
Description
Technical field
The present invention relates to the vent gas treatment technical field, relate in particular to a kind of power plant exhaust gas cleaner and power plant exhaust purifying method.
Background technology
Generation current factory (is fuel with heavy oil and coal) waste gas all directly enters atmosphere, promptly utilizes the chimney high altitude discharge.Because the generator working time in power plant long (being continuous non-stop run in 24 hours); Discharge capacity is big; Various pernicious gases and flue dust produce severe contamination to atmosphere, and not even a blade of grass grows around a lot of power plant, and stink is pungent; The serious harm people's is healthy, has also influenced the life-span of the earth simultaneously.
In view of this, provide a kind of power plant exhaust gas cleaner and power plant exhaust purifying method to necessitate.
Summary of the invention
Goal of the invention of the present invention provides a kind of power plant exhaust gas cleaner and power plant exhaust purifying method that can cleaning of off-gas.
To achieve these goals; A kind of power plant provided by the invention exhaust gas cleaner; It comprises spray column and gravitational dust collection device; Said gravitational dust collection device comprises that gravitational precipitator is used for the dust storage chamber of collecting granules dust with being connected with said gravitational precipitator; The arrival end of said spray column is connected with a port of said gravitational precipitator, and the another port of said gravitational precipitator is connected with the exhaust opening of generating set through discharge flue, and the position that said spray column arrival end is connected with said gravitational precipitator is provided with the charcoal absorption chamber; Said spray column comprises fan house, obstruct filter chamber, chemical spray chamber, steam-water separation chamber, smoke exhaust fan chamber, peculiar smell adsorption chamber and the anion smoking room that links together in order; The bottom of said spray column is provided with the spray pond; Said spray pond is provided with water pump; The delivery port of said water pump is communicated with through spray header with said chemical spray chamber, and the bottom of said chemical spray chamber is connected with said fountain through return pipe; Said chemical spray chamber comprises one-level chemistry spray chamber, secondary chemistry spray chamber, three grades of chemical spray chambers and level Four chemistry spray chamber, between wherein said one-level chemistry spray chamber and the said secondary chemistry spray chamber, between said secondary chemistry spray chamber and the said three grades of chemical spray chambers, be provided with a said obstruct filter chamber between said three grades of chemical spray chambers and the chemical spray chamber of said level Four.
Further, said exhaust gas cleaner also comprises the moisturizing pond, and said moisturizing pond is provided with small pump, and the water side of said small pump is connected through filling pipe with said spray pond.
Further, the bottom in said spray pond is provided with the screen pack and the beds of precipitation, and the said beds of precipitation are positioned at the bottom of said screen pack, and the openend of the said beds of precipitation is connected to the deposition well through pipeline.
Further, said spray pond also is connected with the Automatic Dosing chamber that changes interpolation purification medicament in trend this spray pond based on the PH of the water in the said spray pond.
The present invention also provides a kind of power plant exhaust purifying method, and its tail gas clean-up step is following:
S101:, under the effect of gravity, make the graininess dust get into dust storage chamber and collect with power plant tail gas stream to gravitational dust collection device;
S102: residual exhaust flow to the charcoal absorption chamber and carries out adsorption cleaning;
S103: the tail gas stream that purified applies power through blower fan to it to fan house;
S104: the tail gas that purified is flow in order intercept filter chamber's filtration, and carry out one-level chemistry spray cleaning through one-level chemistry spray chamber;
S105: the tail gas stream through one-level chemistry spray cleaning is filtered to intercepting the filter chamber, and carries out secondary chemistry spray cleaning through secondary chemistry spray chamber;
S106: the tail gas stream through secondary chemistry spray cleaning is filtered to intercepting the filter chamber, and carries out three grades of chemical spray cleanings through three grades of chemical spray chambers;
S107: the tail gas stream through three grades of chemical spray cleanings is filtered to intercepting the filter chamber, and carries out level Four chemistry spray cleaning through level Four chemistry spray chamber;
S108: tail gas stream to the steam-water separation chamber through level Four chemistry spray cleaning carries out carbonated drink separation;
S109: tail gas stream to the smoke exhaust fan chamber of separating through the carbonated drink purification of discharging fume;
S110: tail gas stream to the peculiar smell adsorption chamber that purifies through smoke evacuation carries out the taste removal purification;
S111: tail gas stream to the anion adsorption chamber through removing the flavor purification carries out anion fine-purification;
S112: the tail gas through anion fine-purification is discharged through the outlet of spray column, accomplishes tail gas clean-up.
Further, said exhaust purifying method comprises that also the Automatic Dosing chamber adds the step that purifies medicament according to the variation of shower water pH value in the trend fountain.
Further, said exhaust purifying method comprises that also the moisturizing pond just changes the step that in trend spray pond water, adds water according to water level in the spray pond.
A kind of power plant provided by the invention exhaust gas cleaner; Through the spray column of exhaust terminal construction up to tens meters in the power plant; And the gravitational dust collection device is set between spray column and exhaust terminal; At first carry out gravitational dust collection, through intercepting filter chamber, the repeatedly chemical spray cleaning of chemical spray chamber, process steam-water separation chamber carries out carbonated drink separation, smoke exhaust fan chamber to the tail gas of process gravitational dust collection, process peculiar smell adsorption chamber removes peculiar smell and process anion smoking room is removed anion in order; Be discharged from last, get into atmosphere.This tail gas is through gravitational dust collection, chemical spray cleaning repeatedly, and carry out carbonated drink separation, peculiar smell is discharged, is passed through after the anion adsorption cleaning at last, becomes clean gas and is discharged from, and gets into atmosphere, do not pollute the environment, and can recycle.A kind of power plant provided by the invention exhaust purifying method, easy operating, good purification has been avoided annular environment pollution, and can be the atmospheric air circulation utilization.
Description of drawings
Fig. 1 is the structural representation of a kind of power plant provided by the invention exhaust gas cleaner.
The specific embodiment
Specify the present invention below in conjunction with accompanying drawing, it explains principle of the present invention as the part of this specification through embodiment, other aspects of the present invention, and characteristic and advantage thereof will become very clear through this detailed description.
As shown in Figure 1; A kind of power plant provided by the invention exhaust gas cleaner; It comprises spray column and gravitational dust collection device; Said gravitational dust collection device comprises gravitational precipitator 5 and the dust storage chamber 2 that is connected and is used for the collecting granules dust with gravitational precipitator 5; The arrival end of spray column is connected with a port of gravitational precipitator 5, and the another port of gravitational precipitator 5 is connected through the exhaust opening of discharge flue 4 with generating set 1, and the position that the spray column arrival end is connected with gravitational precipitator 5 is provided with charcoal absorption chamber 6; Spray column comprises fan house 29, obstruct filter chamber 7, chemical spray chamber, steam-water separation chamber 12, smoke exhaust fan chamber 13, peculiar smell adsorption chamber 14 and the anion smoking room 15 that links together in order; The bottom of this spray column is provided with spray pond 27; Spray pond 27 is provided with water pump 20; The delivery port of this water pump 20 is communicated with through spray header 17 with chemical spray chamber, and the bottom of chemical spray chamber is connected with fountain 27 through return pipe 19; This chemistry spray chamber comprises one-level chemistry spray chamber 8, secondary chemistry spray chamber 9, three grades of chemical spray chambers 10 and level Four chemistry spray chambers 11, wherein between one-level chemistry spray chamber 8 and the secondary chemistry spray chamber 9, between secondary chemistry spray chamber 9 and the three grades of chemical spray chambers 10, be provided with an obstruct filter chamber 7 between three grades of chemical spray chambers 10 and the chemical spray chamber 11 of level Four.
A kind of power plant provided by the invention exhaust gas cleaner through the spray column of exhaust terminal construction up to tens meters in the power plant, and is provided with the gravitational dust collection device between spray column and exhaust terminal, power plant tail gas is carried out purified treatment.Be specially at first tail gas entering gravitational precipitator 5, under the effect of gravity, make particulate soot pass through control of dust pipeline 3 and get into dust arrester 2, gravity controls of dust first; Carry out the tail gas adsorption cleaning through charcoal absorption chamber 6 again, get into fan house 29 then, under the effect of blower fan, this tail gas gets into into smoke-box 18, and in order through intercepting filter chamber 7 and chemical spray chamber.In this one-level chemistry spray chamber 8, secondary chemistry spray chamber 9, three grades of chemical spray chambers 10 and level Four chemistry spray chamber 11; Chemical medicinal liquid in the spray pond 27 can be through adding liquid medicine in 17 pairs of chemical spray chambers of spray header under the effect of water pump 20; Tail gas is carried out repeatedly chemical spray cleaning; Water after the purification flows back into the spray pond through return pipe 19, realizes the circulation of water.This tail gas carries out carbonated drink separation through steam-water separation chamber 12 more afterwards; Pass through smoke exhaust fan chamber 13, under the effect of smoke exhaust fan, remove peculiar smell through peculiar smell adsorption chamber 15; Remove anion fine-purification through anion smoking room 15 afterwards; Be discharged from (as shown in arrow 16) at last, get into atmosphere.This tail gas is through gravitational dust collection, chemical spray cleaning repeatedly, and carry out carbonated drink separation, peculiar smell is discharged, is passed through after the anion adsorption cleaning at last, becomes clean gas and is discharged from, and gets into atmosphere, do not pollute the environment, and can recycle.
Preferably, this power plant exhaust gas cleaner also comprises moisturizing pond 23, and this moisturizing pond 23 is provided with small pump 22, and the water side of this small pump 22 is connected through filling pipe 21 with spray pond 27.Through moisturizing pond 23 is set, it just changes control small pump 22 based on water level in the spray pond 27 and in trend shower water pond 27, adds water, and regulates water temperature, thereby realizes control automatically, has practiced thrift human cost, and has improved purification efficiency.
Preferably, the bottom in this spray pond 27 is provided with the screen pack 26 and the beds of precipitation 25, and these beds of precipitation 25 are positioned at the bottom of screen pack 26, and the openend of these beds of precipitation 25 is connected to deposition well 24 through pipeline.Spray is provided with screen pack 26 in the pond 27; Be used for filtering the dirty material in spray pond 27, after the dirty material after filtering is deposited in the beds of precipitation 25, through openend inflow place settle well 24; Remove to handle sediment by soil itself, avoided the pollution of surrounding environment.
Preferably, this spray pond 27 also is connected with the Automatic Dosing chamber 28 that changes interpolation purification medicament in this spray pond 27 of trend according to the PH of the water in the said spray pond 27.One Automatic Dosing chamber 28 is set in spray column; This Automatic Dosing chamber 28 is connected with spray pond 27; When the pH value of the shower water that detects spray pond 27 reduces; It can be from trend shower water pond 27 in adds and purifies medicament, keeping the chemical action of shower water, thereby guarantees the chemical cleaning method effect of the interior shower water of chemical spray chamber.It has not only guaranteed the clean-up effect to tail gas, also realizes control automatically, has practiced thrift human cost, and has improved purification efficiency.
The present invention also provides a kind of power plant exhaust purifying method, and its tail gas clean-up step is following:
S101:, under the effect of gravity, make the graininess dust get into dust storage chamber 2 and collect with power plant tail gas stream to gravitational dust collection device;
S102: residual exhaust flow to charcoal absorption chamber 6 and carries out adsorption cleaning;
S103: the tail gas stream that purified to fan house 29 applies power through blower fan to it;
S104: the tail gas that purified is flow in order intercept filter chamber's 7 filtrations, and carry out one-level chemistry spray cleaning through one-level chemistry spray chamber 8;
S105: the tail gas stream through one-level chemistry spray cleaning is filtered to intercepting filter chamber 7, and carries out secondary chemistry spray cleaning through secondary chemistry spray chamber 9;
S106: the tail gas stream through secondary chemistry spray cleaning is filtered to intercepting filter chamber 7, and carries out three grades of chemical spray cleanings through three grades of chemical spray chambers 10;
S107: the tail gas stream through three grades of chemical spray cleanings is filtered to intercepting filter chamber 7, and carries out level Four chemistry spray cleaning through level Four chemistry spray chamber 11;
S108: tail gas stream to the steam-water separation chamber 12 through level Four chemistry spray cleaning carries out carbonated drink separation;
S109: tail gas stream to the smoke exhaust fan chamber 13 of separating through the carbonated drink purification of discharging fume;
S110: tail gas stream to the peculiar smell adsorption chamber 14 that purifies through smoke evacuation carries out the taste removal purification;
S111: tail gas stream to the anion adsorption chamber 16 through removing the flavor purification carries out anion fine-purification;
S112: the tail gas through anion fine-purification is discharged (shown in figure 16) through the outlet of spray column, accomplishes tail gas clean-up.
Power plant provided by the invention exhaust purifying method, at first tail gas gets into gravitational precipitator 5, under the effect of gravity, makes particulate soot pass through control of dust pipeline 3 and gets into dust arrester 2, gravity control of dust first; Carry out the tail gas adsorption cleaning through charcoal absorption chamber 6 again, get into fan house 29 then, under the effect of blower fan, this tail gas gets into into smoke-box 18, and in order through intercepting filter chamber 7 and chemical spray chamber.In this one-level chemistry spray chamber 8, secondary chemistry spray chamber 9, three grades of chemical spray chambers 10 and level Four chemistry spray chamber 11, tail gas is carried out repeatedly chemical spray cleaning.This tail gas carries out carbonated drink separation through steam-water separation chamber 12 more afterwards; Pass through smoke exhaust fan chamber 13, under the effect of smoke exhaust fan, remove peculiar smell through peculiar smell adsorption chamber 15; Remove anion fine-purification through anion smoking room 15 afterwards; Be discharged from (as shown in arrow 16) at last, accomplish tail gas clean-up, make tail gas get into atmosphere.This tail gas is through gravitational dust collection, chemical spray cleaning repeatedly, and carry out carbonated drink separation, peculiar smell is discharged, is passed through after the anion adsorption cleaning at last, becomes clean gas and is discharged from, and gets into atmosphere, do not pollute the environment, and can recycle.Exhaust purifying method provided by the invention, easy operating, good purification has been avoided environmental pollution, can realize the atmospheric air circulation utilization again.
Preferably, this power plant exhaust purifying method comprises that also Automatic Dosing chamber 28 adds the step that purifies medicament according to the variation of shower water pH value in trend fountain 27.Owing in this spray column an Automatic Dosing chamber 28 is set; This Automatic Dosing chamber 28 is connected with spray pond 27; When the pH value of the shower water that detects spray pond 27 reduces; It can be from trend shower water pond 27 in adds and purifies medicament, keeping the chemical action of shower water, thereby guarantees the chemical cleaning method effect of the interior shower water of chemical spray chamber.It has not only guaranteed the clean-up effect to tail gas, also realizes control automatically, has practiced thrift human cost, and has improved purification efficiency.
Preferably, this power plant exhaust purifying method comprises that also moisturizing pond 23 just changes the step that in trend spray pond water 27, adds water according to water level in the spray pond 27.This moisturizing pond 23 can just change control small pump 22 based on water level in the spray pond 27 and in trend shower water pond 27, add water, and regulates water temperature, thereby realizes control automatically, has practiced thrift human cost, and has improved purification efficiency.
Thus; A kind of power plant provided by the invention exhaust gas cleaner; Through the spray column of exhaust terminal construction up to tens meters, and the gravitational dust collection device is set between spray column and exhaust terminal, at first carries out gravitational dust collection in the power plant; The tail gas of process gravitational dust collection is in order through intercepting filter chamber, the repeatedly chemical spray cleaning of chemical spray chamber; Carry out carbonated drink separation, smoke exhaust fan chamber, remove peculiar smell and remove anion through steam-water separation chamber, be discharged from last, get into atmosphere through the anion smoking room through the peculiar smell adsorption chamber.This tail gas is through gravitational dust collection, chemical spray cleaning repeatedly, and carry out carbonated drink separation, peculiar smell is discharged, is passed through after the anion adsorption cleaning at last, becomes clean gas and is discharged from, and gets into atmosphere, do not pollute the environment, and can recycle.A kind of power plant provided by the invention exhaust purifying method, easy operating, good purification has been avoided annular environment pollution, and can be the atmospheric air circulation utilization.
The above disclosed the preferred embodiments of the present invention that are merely can not limit the present invention's interest field certainly with this, so according to the equivalent variations that claim of the present invention is done, still belong to the scope that the present invention is contained.
Claims (7)
1. power plant exhaust gas cleaner; It comprises spray column and gravitational dust collection device; Said gravitational dust collection device comprises that gravitational precipitator is used for the dust storage chamber of collecting granules dust with being connected with said gravitational precipitator; The arrival end of said spray column is connected with a port of said gravitational precipitator; The another port of said gravitational precipitator is connected with the exhaust opening of generating set through discharge flue, and the position that said spray column arrival end is connected with said gravitational precipitator is provided with the charcoal absorption chamber;
It is characterized in that: said spray column comprises fan house, obstruct filter chamber, chemical spray chamber, steam-water separation chamber, smoke exhaust fan chamber, peculiar smell adsorption chamber and the anion smoking room that links together in order; The bottom of said spray column is provided with the spray pond; Said spray pond is provided with water pump; The delivery port of said water pump is communicated with through spray header with said chemical spray chamber, and the bottom of said chemical spray chamber is connected with said fountain through return pipe;
Said chemical spray chamber comprises one-level chemistry spray chamber, secondary chemistry spray chamber, three grades of chemical spray chambers and level Four chemistry spray chamber, between wherein said one-level chemistry spray chamber and the said secondary chemistry spray chamber, between said secondary chemistry spray chamber and the said three grades of chemical spray chambers, be provided with a said obstruct filter chamber between said three grades of chemical spray chambers and the chemical spray chamber of said level Four.
2. a kind of power plant according to claim 1 exhaust gas cleaner; It is characterized in that: said exhaust gas cleaner also comprises the moisturizing pond; Said moisturizing pond is provided with small pump, and the water side of said small pump is connected through filling pipe with said spray pond.
3. a kind of power plant according to claim 1 exhaust gas cleaner; It is characterized in that: the bottom in said spray pond is provided with the screen pack and the beds of precipitation; The said beds of precipitation are positioned at the bottom of said screen pack, and the openend of the said beds of precipitation is connected to the deposition well through pipeline.
4. a kind of power plant according to claim 1 exhaust gas cleaner is characterized in that: the PH that said spray pond also is connected with according to the water in the said spray pond changes the Automatic Dosing chamber of in this spray pond of trend, adding the purification medicament.
5. power plant exhaust purifying method that adopts the described a kind of power plant of claim 1 exhaust gas cleaner that power plant tail gas is purified, its tail gas clean-up step is following:
S101:, under the effect of gravity, make the graininess dust get into dust storage chamber and collect with power plant tail gas stream to gravitational dust collection device;
S102: residual exhaust flow to the charcoal absorption chamber and carries out adsorption cleaning;
S103: the tail gas stream that purified applies power through blower fan to it to fan house;
S104: the tail gas that purified is flow in order intercept filter chamber's filtration, and carry out one-level chemistry spray cleaning through one-level chemistry spray chamber;
S105: the tail gas stream through one-level chemistry spray cleaning is filtered to intercepting the filter chamber, and carries out secondary chemistry spray cleaning through secondary chemistry spray chamber;
S106: the tail gas stream through secondary chemistry spray cleaning is filtered to intercepting the filter chamber, and carries out three grades of chemical spray cleanings through three grades of chemical spray chambers;
S107: the tail gas stream through three grades of chemical spray cleanings is filtered to intercepting the filter chamber, and carries out level Four chemistry spray cleaning through level Four chemistry spray chamber;
S108: tail gas stream to the steam-water separation chamber through level Four chemistry spray cleaning carries out carbonated drink separation;
S109: tail gas stream to the smoke exhaust fan chamber of separating through the carbonated drink purification of discharging fume;
S110: tail gas stream to the peculiar smell adsorption chamber that purifies through smoke evacuation carries out the taste removal purification;
S111: tail gas stream to the anion adsorption chamber through removing the flavor purification carries out anion fine-purification;
S112: the tail gas through anion fine-purification is discharged through the outlet of spray column, accomplishes tail gas clean-up.
6. a kind of power plant according to claim 5 exhaust purifying method is characterized in that: said exhaust purifying method comprises that also the Automatic Dosing chamber adds the step that purifies medicament according to the variation of shower water pH value in the trend fountain.
7. a kind of power plant according to claim 6 exhaust purifying method is characterized in that: said exhaust purifying method comprises that also the moisturizing pond just changes the step that in trend shower water pond, adds water according to water level in the spray pond.
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| CN2011103719003A CN102489098A (en) | 2011-11-18 | 2011-11-18 | Device and method for purifying tail gases of power plants |
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| CN2011103719003A CN102489098A (en) | 2011-11-18 | 2011-11-18 | Device and method for purifying tail gases of power plants |
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Cited By (6)
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| CN103349896A (en) * | 2013-07-04 | 2013-10-16 | 大连佳林设备制造有限公司 | Large-scale equipment for filtering air odor and pollutant |
| CN104014216A (en) * | 2014-06-17 | 2014-09-03 | 张银贵 | Vehicle-mounted type multifunctional dust remover for purifying air and tail gas, generating power and extinguishing |
| CN106500196A (en) * | 2016-10-25 | 2017-03-15 | 谢龙观 | Multiple-effect function air cleaner system |
| CN108355477A (en) * | 2018-03-10 | 2018-08-03 | 佛山市千注利科技有限公司 | A kind of environmental protection exhaust gas processing device convenient for adjusting |
| CN108837649A (en) * | 2018-06-06 | 2018-11-20 | 烟台知兴知识产权咨询服务有限公司 | A kind of consumer waste incineration device for purifying and treating tail gas |
| CN108905505A (en) * | 2018-07-20 | 2018-11-30 | 协建（江苏）智能装备有限公司 | A kind of chemical industry tail gas purification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103349896A (en) * | 2013-07-04 | 2013-10-16 | 大连佳林设备制造有限公司 | Large-scale equipment for filtering air odor and pollutant |
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| CN108905505A (en) * | 2018-07-20 | 2018-11-30 | 协建（江苏）智能装备有限公司 | A kind of chemical industry tail gas purification device |
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Application publication date: 20120613 |