CN204380503U - Smoke eliminator and flue gas purification system - Google Patents
Smoke eliminator and flue gas purification system Download PDFInfo
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- CN204380503U CN204380503U CN201520006617.4U CN201520006617U CN204380503U CN 204380503 U CN204380503 U CN 204380503U CN 201520006617 U CN201520006617 U CN 201520006617U CN 204380503 U CN204380503 U CN 204380503U
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- flue
- electric field
- field generation
- generation device
- desulfurizing tower
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Abstract
This application discloses smoke eliminator and flue gas purification system.One detailed description of the invention of described device comprises: flue, and bottom is smoke inlet, and top is provided with exhanst gas outlet; Electric field generation device, is located in flue, the honeycomb duct comprising cathode line and be made up of positive plate, and in the same way, the center of each pore is provided with cathode line for honeycomb duct and flue; Spray equipment, is located in flue, and be at least arranged at the exhanst gas outlet side of electric field generation device, the nozzle of spray equipment is towards electric field generation device.This embodiment is owing to employing honeycomb duct, the larger space that used less material to manufacture, therefore smoke eliminator can adopt higher flue gas flow rate, and makes the diameter of electric field generation device less, more compact structure, thus make the structure of smoke eliminator more compact.
Description
Technical field
The application relates to environmental technology field, is specifically related to environmental protecting device technical field, particularly relates to smoke eliminator and flue gas purification system.
Background technology
The technology that current coal-fired flue gas desulfurization is most widely used is limestone-gypsum method flue gas desulfurization technology.Coal-fired flue-gas enters absorption tower reaction zone, and flue gas upwards by absorption tower, is evenly distributed on the cross section on absorption tower, from absorption tower internal sparger pipe group ejection hanging drop to decline,, there is mass transfer and absorption reaction, to remove the SO in flue gas in flue gas and limestone/gypsum slurry drops counter current contacting
2, SO
3and HC1, HF.Flue gas after desulfurization is removed after the drop carried secretly in flue gas through demister, leaves absorption tower, discharged by chimney from top.
Utility model content
On absorption tower, outlet carries gypsum drop to above-mentioned limestone-gypsum method flue gas desulfurization technology, and then may cause the gypsum rain phenomenon of chimney breast, increases the solid particulate matter discharge capacity in exhaust.
In order to solve the problem, this application provides a kind of smoke eliminator and flue gas purification system.
On the one hand, this application provides a kind of smoke eliminator, comprising: flue, bottom is smoke inlet, and top is provided with exhanst gas outlet; Electric field generation device, is located in described flue, the honeycomb duct comprising cathode line and be made up of positive plate, and in the same way, the center of each pore is provided with described cathode line for described honeycomb duct and described flue; Spray equipment, is located in described flue, is at least arranged at the exhanst gas outlet side of described electric field generation device, and the nozzle of described spray equipment is towards described electric field generation device.
In some embodiments, the multiple described electric field generation device along described flue direction layered arrangement is comprised.
In some embodiments, each electric field generation device is provided with spray equipment described at least one; When an electric field generation device is provided with multiple described spray equipment, multiple described spray equipment is all arranged at the exhanst gas outlet side of described electric field generation device or lays respectively at smoke inlet side and the exhanst gas outlet side of described electric field generation device.
In some embodiments, the single-nozzle of described spray equipment corresponds to single described pore.
In some embodiments, described positive plate adopts non-metallic conducting material to make.
In some embodiments, also comprise: interface channel, connect described flue and desulfurizing tower system.
In some embodiments, also comprise: supporting component, together described smoke eliminator is supported on described desulfurizing tower system with described interface channel.
Second aspect, this application provides a kind of flue gas purification system, comprises desulfurizing tower system and smoke eliminator as above; The top of described desulfurizing tower system is provided with described smoke eliminator.
In some embodiments, described desulfurizing tower system comprises: desulfurizing tower, and bottom is provided with slurries district, comprises limestone slurry liquid pool, slurry mixer, oxidation fan, lime stone slurry front pump and gypsum excavationg pump; Middle part is provided with uptake zone, is positioned at the top in described slurries district, the tower wall of described desulfurizing tower is provided with smoke inlet; Top is provided with exhanst gas outlet; Spraying layer, be located in described desulfurizing tower, be positioned at the top of described uptake zone, comprise circulating pump, shower group and atomizer group, shower group described in described circulating pump UNICOM and described limestone slurry liquid pool, described in each, the lower end of shower connects described atomizer; Mechanical type demister, is located in described desulfurizing tower, above described spraying layer and between described exhanst gas outlet.
In some embodiments, the described shower group of many groups and described atomizer group is provided with along described desulfurizing tower, shower group described in described circulating pump UNICOM many groups and described limestone slurry liquid pool.
The smoke eliminator that the application provides and flue gas purification system, in smoke eliminator, flue is set, and be provided with smoke inlet in the bottom of flue, top is provided with exhanst gas outlet, again electric field generation device is set in flue, make the honeycomb duct that electric field generation device comprises cathode line and is made up of positive plate, honeycomb duct and flue are in the same way, the center of each pore is provided with cathode line, also spray equipment is set in flue, make spray equipment at least be arranged at the exhanst gas outlet side of electric field generation device, and make the nozzle of spray equipment towards electric field generation device.Owing to employing honeycomb duct, the larger space that used less material to manufacture, therefore smoke eliminator can adopt higher flue gas flow rate, and makes the diameter of electric field generation device less, more compact structure, thus makes the structure of smoke eliminator more compact.
Further, according to section Example, smoke eliminator can be placed in the top of desulfurizing tower system, and independent support, above desulfurizing tower system, effectively make use of vertical space, reduces the length of floor space and interface channel.Smoke eliminator can not affect the normal operation of existing desulfurizing tower system when building, as long as be connected with desulphurization system by interface channel after having built, therefore short construction period, economic benefit is good.Former flue gas enters the uptake zone of desulfurizing tower system from desulfurizing tower smoke inlet, and the slurry droplet counter current contacting under uptake zone and spraying layer spray also is reacted, and removes the SO in flue gas
2, SO
3, sour gas and the divalent state mercury such as HCl and HF, reacted slurry droplet falls into the limestone slurry liquid pool recycled; The flue gas removed after sour gas and divalent state mercury enters mechanical type demister, the most of slurry droplet carried secretly from uptake zone at mechanical type demister place is removed, flue gas after demist enters in smoke eliminator through interface channel, successively by the electric field generation devices at different levels of smoke eliminator, from gypsum droplet, dust, SO that desulfurizing tower is escaped in flue gas
3, zero-valent state mercury etc. is by deep removal; Neat stress after deep purifying is discharged through advanced purification system exhanst gas outlet, can deep purifying flue gas, wherein SO
2removal efficiency>=96%, dust clearance (containing gypsum)>=80%, PM2.5 clearance>=80%, droplet clearance>=80%, SO
3clearance>=60%.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, the other features, objects and advantages of the application will become more obvious:
Fig. 1 a shows a kind of exemplary block diagram of the smoke eliminator according to the embodiment of the present application;
Fig. 1 b shows an exemplary block diagram of cathode line according to the electric field generation device of the embodiment of the present application in Fig. 1 a and honeycomb duct;
Fig. 2 shows a kind of exemplary block diagram of the flue gas purification system according to the embodiment of the present application.
Reference numeral: 100-smoke eliminator; 101-flue; 102-electric field generation device; 103-spray equipment; The smoke inlet of 104-device; The exhanst gas outlet of 105-device; 106-cathode line; 107-positive plate; 108-honeycomb duct; 109-pore; 110-nozzle; 111-interface channel; 112-supporting component; 200-flue gas purification system; 201-desulfurizing tower system; 202-desulfurizing tower; 203-spraying layer; 204-mechanical type demister; 205-slurries district; 206-limestone slurry liquid pool; 207-slurry mixer; 208-oxidation fan; 209-lime stone slurry front pump; 210-gypsum excavationg pump; 211-uptake zone; The smoke inlet of 212-desulfurizing tower; 213-exhanst gas outlet; 214-circulating pump; 215-shower group; 216-atomizer group.
Detailed description of the invention
Below in conjunction with drawings and Examples, the application is described in further detail.Be understandable that, specific embodiment described herein is only for explaining relevant utility model, but not the restriction to this utility model.It also should be noted that, for convenience of description, in accompanying drawing, illustrate only the part relevant with relevant utility model.
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the application in detail in conjunction with the embodiments.
Use the limestone-gypsum method flue gas desulfurization technology in background technology, in engineering practice, there are some problems:
(1) carry because current desulfurization method of limestone-gypsum system exists desulfurizing tower outlet gypsum drop, and then may cause the gypsum rain phenomenon of chimney breast, solid particulate matter discharge capacity increases;
(2) desulfurizing tower is for fine solid particle, nonvalent mercury and SO
3remove limited in one's ability, not only cause chimney breast plume problem, also can because of SO
3aerosols etc. form the secondary aerosol species such as PM2.5.
For above problem, the smoke eliminator that the application proposes and flue gas purification system, on the basis of the desulfurization method of limestone-gypsum technology existed with desulfurizing tower form, superposition smoke eliminator, for SO
3, drop, fine particulates particularly PM2.5 removal efficiency be greater than 80%, can SO be ensured
3with dust emission lower than 5mg/Nm
3, thus control chimney gypsum rain and plume problem, realize fire coal boiler fume SO
xwith the deep purifying of particle.
Fig. 1 a shows a kind of exemplary block diagram of the smoke eliminator 100 according to the embodiment of the present application.
Fig. 1 b shows an exemplary block diagram of cathode line 106 according to the electric field generation device 102 of the embodiment of the present application in Fig. 1 a and honeycomb duct 108.
As illustrated in figs. ia and ib, smoke eliminator 100 can comprise: flue 101, electric field generation device 102 and spray equipment 103.
Flue 101, be smoke inlet 104 bottom it, top is provided with exhanst gas outlet 105.Electric field generation device 102, is located in flue 101, the honeycomb duct 108 comprising cathode line 106 and be made up of positive plate 107, and in the same way, the center of each pore 109 is provided with cathode line 106 for honeycomb duct 108 and flue 101.Spray equipment 103, is located in flue 101, is at least arranged at the exhanst gas outlet side of electric field generation device 102, and the nozzle 110 of spray equipment 103 is towards electric field generation device 102.
In the present embodiment, flue 101 is set in smoke eliminator, and be provided with smoke inlet 104 in the bottom of flue 101, top is provided with exhanst gas outlet 105, again electric field generation device 102 is set in flue 101, make the honeycomb duct 108 that electric field generation device 102 comprises cathode line 106 and is made up of positive plate 107, honeycomb duct 108 and flue 101 are in the same way, the center of each pore 109 is provided with cathode line 106, also spray equipment 103 is set in flue 101, spray equipment 103 is made at least to be arranged at the exhanst gas outlet side of electric field generation device 102, and make the nozzle 110 of spray equipment 103 towards electric field generation device 102.Owing to employing honeycomb duct 108, the larger space that used less material to manufacture, therefore smoke eliminator can adopt higher flue gas flow rate, and makes the diameter of electric field generation device 102 less, more compact structure, thus make the structure of smoke eliminator more compact.
Further, smoke eliminator 100 can comprise the multiple electric field generation devices 102 along flue 101 direction layered arrangement.
Along multiple electric field generation devices 102 of flue 101 direction layered arrangement, according to the demand of gas cleaning, flue gas repeatedly can be purified, further deep purifying flue gas.
Further, each electric field generation device 102 is provided with at least one spray equipment 103.When an electric field generation device 102 is provided with multiple spray equipment 103, multiple spray equipment 103 is all arranged at the exhanst gas outlet side of electric field generation device 102 or lays respectively at smoke inlet side and the exhanst gas outlet side of electric field generation device 102.
Each electric field generation device 102 can arrange one or more spray equipment 103.In some implementations, the exhanst gas outlet side of electric field generation device 102, can arrange at least one spray equipment 103, for rinsing to smoke inlet side at the dust that will positive plate 107 be collected and acid mist.In other implementations, the smoke path that electric field generation device 102 occupies is longer, if only arrange spray equipment 103 in exhanst gas outlet side, the dust that positive plate 107 is collected and acid mist may be difficult to rinse well, therefore spray equipment 103 can also be set in the smoke inlet side of electric field generation device 102, strengthen developing result further.
Further, the single-nozzle 110 of spray equipment 103 corresponds to single pore 109.
The corresponding single pore 109 of single-nozzle 110 of spray equipment 103, effectively can clean dust and acid mist that the hole wall of each pore 109 is collected.
Further, positive plate 107 adopts non-metallic conducting material to make.
Positive plate 107 adopts non-metallic conducting material to make, and lightweight and corrosion resistance is strong, without the need to the consumption of alkali, greatly can reduce the operating cost of smoke eliminator 100.
Further, smoke eliminator 100 can also comprise: interface channel 111, connects flue 101 and desulfurizing tower system.
Interface channel 111, connects flue 101 and desulfurizing tower system, enhances the stability that flue 101 connects desulfurizing tower system.
Further, smoke eliminator 100 can also comprise: supporting component 112, is together supported on desulfurizing tower system by smoke eliminator 100 with interface channel 111.
Supporting component 112, is together supported on desulfurizing tower system by smoke eliminator 100 with interface channel 111, and smoke eliminator 100 can be made more stable with the connection of desulfurizing tower system.
Fig. 2 shows a kind of exemplary block diagram of the flue gas purification system 200 according to the embodiment of the present application.
As shown in Figure 2, flue gas purification system 200 can comprise desulfurizing tower system 201 and smoke eliminator 100 as above.The top of desulfurizing tower system 201 is provided with smoke eliminator 100.
Further, desulfurizing tower system 201 can comprise: desulfurizing tower 202, spraying layer 203 and mechanical type demister 204.
Desulfurizing tower 202, is provided with slurries district 205 bottom it, slurries district 205 comprises limestone slurry liquid pool 206, slurry mixer 207, oxidation fan 208, lime stone slurry front pump 209 and gypsum excavationg pump 210; Middle part is provided with uptake zone 211, is positioned at the top in slurries district 205, the tower wall of desulfurizing tower 202 is provided with smoke inlet 212; Top is provided with exhanst gas outlet 213.
Spraying layer 203, be located in desulfurizing tower 202, be positioned at the top of uptake zone 211, comprise circulating pump 214, shower group 215 and atomizer group 216, circulating pump 214 UNICOM shower group 215 and limestone slurry liquid pool 206, the lower end of each shower connects atomizer.
Mechanical type demister 204, is located in desulfurizing tower 202, above spraying layer 203 and between exhanst gas outlet 213.
In the present embodiment, mechanical type demister 204 is mainly made up of fixtures such as waveform blade, plate, card articles, its operation principle is gravity and inertial impaction effect, when passing through demister containing mist gas with certain speed, can bump against with demister internal structure, and depend in its surface.The mist that the surface of mechanical type demister internal structure depends on, the effect through diffusion and gravity can progressively be assembled, and after weight reaches certain level, will separate from mechanical type demister internal structure.The kind of mechanical type demister is more, such as: ridge type demister, tubular demister and Flat defroster etc.
Further, many group shower groups 215 and atomizer group 216, circulating pump 214 UNICOM many groups shower group 215 and limestone slurry liquid pool 206 is provided with along desulfurizing tower 202.
In an embody rule scene of the present embodiment, former flue gas enters desulfurizing tower uptake zone 211 from the smoke inlet 212 of desulfurizing tower 202, and the slurry droplet counter current contacting under spraying with spraying layer 203 in uptake zone 211 is also reacted, and removes the SO in flue gas
2, SO
3, sour gas and the divalent state mercury such as HCl and HF, reacted slurry droplet falls into limestone slurry liquid pool 206; The flue gas removed after sour gas and divalent state mercury enters mechanical type demister 204, the most of slurry droplet carried secretly from uptake zone 211 at mechanical type demister 204 place is removed, and the flue gas after demist enters the smoke inlet 104 of smoke eliminator 100 through interface channel 111; In smoke eliminator 100, the flue gas after demist passes through the electric field generation devices at different levels 102 of smoke eliminator 100 successively, from gypsum droplet, dust, SO that desulfurizing tower is escaped in flue gas
3, zero-valent state mercury etc. is by deep removal; Neat stress after deep purifying is discharged through the exhanst gas outlet 105 of device for deep cleaning.
Wherein, limestone slurry liquid pool 206 is provided with lime stone slurry front pump 209, lime stone slurry adds in limestone slurry liquid pool 206 by lime stone slurry front pump 209 continuously, slurry mixer 207 stirs oxidation fan 208 and sends in limestone slurry liquid pool 206 for the air that is oxidized and lime stone slurry, desulfurization slurry is mixed, and is gypsum by calcium sulfite oxidation for the air that is oxidized simultaneously; Lime stone slurry in limestone slurry liquid pool 206 is recycled pump 214 and sends spraying layer 203 back to, be atomized the drop for average diameter 2mm through atomizer group 216 slurries of uptake zone 211 deliver to spraying layer 203 from limestone slurry liquid pool 206 by circulating pump 214 after, the gypsum slurries that desulphurization reaction is formed discharges desulfurizing tower 202 by gypsum excavationg pump 210.
Arrange spray equipment 103 above the electric field of smoke eliminator 100, form moisture film, the dust that positive plate 107 is collected and acid mist are rinsed on positive plate 107 surface, ash flushing water flows in limestone slurry liquid pool 206, as the moisturizing of desulphurization reaction; Spray equipment 103 is connected with flush water pump by adjusting part, spray equipment 103 is controlled, select continuous flushing or interval backwashing manner according to the situation of each electric field, farthest economize on water while keeping best ash-removal effect, and reduce the drop entrainment in exiting flue gas.
More than describe and be only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art are to be understood that, utility model scope involved in the application, be not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should be encompassed in when not departing from the design of described utility model simultaneously, be undertaken being combined by above-mentioned technical characteristic or its equivalent feature and other technical scheme of being formed.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme formed.
Claims (10)
1. a smoke eliminator, is characterized in that, comprising:
Flue, bottom is smoke inlet, and top is provided with exhanst gas outlet;
Electric field generation device, is located in described flue, the honeycomb duct comprising cathode line and be made up of positive plate, and in the same way, the center of each pore is provided with described cathode line for described honeycomb duct and described flue;
Spray equipment, is located in described flue, is at least arranged at the exhanst gas outlet side of described electric field generation device, and the nozzle of described spray equipment is towards described electric field generation device.
2. device according to claim 1, is characterized in that, comprises the multiple described electric field generation device along described flue direction layered arrangement.
3. device according to claim 2, is characterized in that, each electric field generation device is provided with spray equipment described at least one; When an electric field generation device is provided with multiple described spray equipment, multiple described spray equipment is all arranged at the exhanst gas outlet side of described electric field generation device or lays respectively at smoke inlet side and the exhanst gas outlet side of described electric field generation device.
4. device according to claim 3, is characterized in that, the single-nozzle of described spray equipment corresponds to single described pore.
5. device according to claim 1, is characterized in that, described positive plate adopts non-metallic conducting material to make.
6. device according to claim 1, is characterized in that, also comprises:
Interface channel, connects described flue and desulfurizing tower system.
7. device according to claim 6, is characterized in that, also comprises:
Supporting component, is together supported in described smoke eliminator on described desulfurizing tower system with described interface channel.
8. a flue gas purification system, is characterized in that, comprises desulfurizing tower system and the smoke eliminator as described in one of claim 1-7;
The top of described desulfurizing tower system is provided with described smoke eliminator.
9. flue gas purification system according to claim 8, is characterized in that, described desulfurizing tower system comprises:
Desulfurizing tower, bottom is provided with slurries district, comprises limestone slurry liquid pool, slurry mixer, oxidation fan, lime stone slurry front pump and gypsum excavationg pump; Middle part is provided with uptake zone, is positioned at the top in described slurries district, the tower wall of described desulfurizing tower is provided with smoke inlet; Top is provided with exhanst gas outlet;
Spraying layer, be located in described desulfurizing tower, be positioned at the top of described uptake zone, comprise circulating pump, shower group and atomizer group, shower group described in described circulating pump UNICOM and described limestone slurry liquid pool, described in each, the lower end of shower connects described atomizer;
Mechanical type demister, is located in described desulfurizing tower, above described spraying layer and between described exhanst gas outlet.
10. flue gas purification system according to claim 9, is characterized in that, is provided with the described shower group of many groups and described atomizer group, shower group described in described circulating pump UNICOM many groups and described limestone slurry liquid pool along described desulfurizing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006617.4U CN204380503U (en) | 2015-01-06 | 2015-01-06 | Smoke eliminator and flue gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006617.4U CN204380503U (en) | 2015-01-06 | 2015-01-06 | Smoke eliminator and flue gas purification system |
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| Publication Number | Publication Date |
|---|---|
| CN204380503U true CN204380503U (en) | 2015-06-10 |
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ID=53353260
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520006617.4U Expired - Fee Related CN204380503U (en) | 2015-01-06 | 2015-01-06 | Smoke eliminator and flue gas purification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174923A (en) * | 2017-07-25 | 2017-09-19 | 史汉祥 | A kind of gas cleaning reactor |
| CN107456858A (en) * | 2017-09-19 | 2017-12-12 | 田勇 | One kind Chinese mugwort fume purifier |
-
2015
- 2015-01-06 CN CN201520006617.4U patent/CN204380503U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174923A (en) * | 2017-07-25 | 2017-09-19 | 史汉祥 | A kind of gas cleaning reactor |
| CN107174923B (en) * | 2017-07-25 | 2023-10-17 | 史汉祥 | Flue gas purifying reactor |
| CN107456858A (en) * | 2017-09-19 | 2017-12-12 | 田勇 | One kind Chinese mugwort fume purifier |
| CN107456858B (en) * | 2017-09-19 | 2024-02-23 | 田勇 | Moxa smoke purifier |
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