CN103157372B - Flue gas desulfurization device of uniform dust turbulence circulating fluidized bed - Google Patents
Flue gas desulfurization device of uniform dust turbulence circulating fluidized bed Download PDFInfo
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- CN103157372B CN103157372B CN201310132136.3A CN201310132136A CN103157372B CN 103157372 B CN103157372 B CN 103157372B CN 201310132136 A CN201310132136 A CN 201310132136A CN 103157372 B CN103157372 B CN 103157372B
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Abstract
The invention discloses a flue gas desulfurization device of a uniform dust turbulence circulating fluidized bed. The flue gas desulfurization device comprises a desulfurization reaction tower, a dust remover, a material returning device and a flue gas humidification cooling device. The flue gas desulfurization device is characterized in that a plurality of stages of uniform dust turbulators are arranged in the desulfurization reaction tower; flue gas and desulfurization solid particles are partitioned into a plurality of streams of air in the uniform dust turbulators for repeated cross turning movement; and the desulfurization solid particles are uniformly distributed in the desulfurization reaction tower. By arranging a plurality of stages of uniform dust turbulators in the desulfurization reaction tower, a desulfurization agent and circulating ash are uniformly fixed with the flue gas in the reaction tower all the time for strong mass transfer, the cross section of the desulfurization reaction tower is rectangular, and the desulfurization reaction tower and the dust remover are arranged back to back to form a box structure. The flue gas desulfurization device is compact in structure, low in metal consumption and high in desulfurization efficiency; each stage of uniform dust turbulator has certain desulfurization efficiency; and by increasing the stage quantity of the uniform dust turbulators, the overall desulfurization efficiency can conveniently exceed 95 percent.
Description
Technical field
The present invention relates to a kind of flue gas desulfur device, particularly relate to a kind of all dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device, for removing sulfur oxide in the flue gas of being discharged by boiler or other combustion apparatus and other noxious acidic gaseous and dust, as HCL, HF etc.
Background technology
In common Circulating Fluidized Bed Flue Gas Desulfurization Technology, by the dust that deduster is collected, major part foldback returns desulfurizing tower, makes the alkaline matter wherein having neither part nor lot in reaction continue with the sour gas reaction in flue gas, to reach the object improving desulfuration efficiency and alkaline matter utilization rate.Circulating fluid bed flue-gas desulfurizing is the mixing by water droplet, solid desulfurating agent and flue gas, along with the evaporation of water droplet, solid desulfurating agent and flue gas more and more moistening, solid desulfurating agent contains certain moisture, sour gas in flue gas produces ionic reaction by liquid film and solid desulfurating agent, there is water-drop evaporation section and gas-solid conversion zone in desulfurization reaction tower.Because the conversion zone in the circulating fluid bed flue gas desulfurization tower of current various technology does not arrange any component, be all void tower, in desulfurizing tower conversion zone, flue gas is with the two-phase flow of recycle stock, bubble can be produced, channel and the phenomenon such as adherent, cause material skewness in flue gas, between gas-solid, speed of related movement is low, mass transfer intensity is low, the desulfuration efficiency of desulfurizing tower conversion zone is very low, although by increasing gas residence time, improve the technological means such as circulated material quantity, but circulating fluid bed flue-gas desulfurizing efficiency at present, under the condition of Ca/S < 1.3, be also only about 90%.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, there is provided one that desulfurizing agent and recycle stock can be made fully to mix with flue gas in desulfurizing tower conversion zone, be uniformly distributed, the circulating fluid bed flue-gas desulfurizing device that between gas-solid, mass transfer intensity is high, under the condition of Ca/S < 1.3, desulfuration efficiency > 95%.
The object of the invention is to be achieved through the following technical solutions: a kind of all dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device, it comprises desulfurization reaction tower, deduster, material-returning device and flue gas humidifying cooling device, it is characterized in that: in described desulfurization reaction tower, be furnished with multistage equal dirt turbulator, flue gas and sweetening solid particle are divided into multiply air-flow and carry out repeatedly cross-turn break-in campaign in equal dirt turbulator, are distributed in desulfurization reaction tower to sweetening solid uniform particles.
The space left between described multistage equal dirt turbulator is as reative cell, and the height of described reative cell is less than 5 meters.
Described equal dirt turbulator can have various ways.
Equal dirt turbulator can be the equal dirt turbulator of a kind of flat deflector, the flat deflector of every one-level equal dirt turbulator is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent equal dirt turbulent flow unit arranged crosswise in length and breadth, described equal dirt turbulent flow unit is made up of many dividing plates and deflector, in the gas channel that each dividing plate etc. separates, arrange deflector, deflector and air-flow initial flow direction form the angle of 20 ° ~ 50 °, the deflector arranged crosswise of neighboring gas flow path.
Equal dirt turbulator can be the equal dirt turbulator of a kind of curved groove deflector, every one-level curved groove deflector equal dirt turbulator is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent equal dirt turbulent flow unit arranged crosswise in length and breadth, described equal dirt turbulent flow unit is made up of many dividing plates and deflector, in the gas channel that each dividing plate etc. separates, arrange deflector, deflector and air-flow initial flow direction form the angle of 20 ° ~ 50 °, the deflector arranged crosswise of neighboring gas flow path, the flue gas outflow end of deflector is provided with control of dust crotch.
Equal dirt turbulator can be the equal dirt turbulator of a kind of dust collecting trough, the equal dirt turbulent flow unit of dust collecting trough equal dirt turbulator is equipped with dust collecting trough, equal dirt turbulator is made up of multiple equal dirt turbulent flow unit with dust collecting trough, dust collecting trough is arranged with the deflector of arranged crosswise and the baffle interval of longitudinal layout, level is spliced into one deck, equal dirt turbulent flow unit can multilayer superpose along airflow direction, and each layer dust collecting trough stagger arrangement is placed.
Deflector length in above-mentioned equal dirt turbulator and between adjacent baffle the ratio of spacing distance be 1 ~ 3.
Can separately or the flat deflector of mixed-arrangement equal dirt turbulator, curved groove deflector equal dirt turbulator and the equal dirt turbulator of dust collecting trough in the flue gas ascent stage of desulfurization reaction tower, can the equal dirt turbulator of cloth horizontalization deflector in the flue gas descending branch of desulfurization reaction tower.
Vertical all dirt turbulators are arranged at turning above desulfurization reaction tower.
Be arranged vertically channel member in described vertical all dirt turbulators, and channel member stagger arrangement multilayer is arranged.
Described flue gas humidifying cooling device comprises multi-stage stirrer, (operating) water nozzle, wind inlet and desulfurizing agent import, by (operating) water nozzle and desulfurizing agent import, water and desulfurizing agent are first sprayed solarization in circulating ash, being mixed into moisture content by multi-stage stirrer is 5% ~ 15% flowable minute solid particles, with high-pressure blast, it is evenly sent into desulfurizing tower evaporator section to mix with flue gas, make flue gas obtain humidifying cooling.
The cross section of described desulfurization reaction tower is rectangle, exhaust pass is arranged near desulfurization reaction tower both sides, the rear portion of desulfurization reaction tower is connected with deduster, a body structure is formed with deduster, flue gas is divided into two at desulphurization reaction top of tower, flow downward along both sides after turning, enter deduster through louver separator.
Described deduster is divided into two, and arranges air door in respective inlet flue duct, arranges lift valve in respective exhaust pass, bottom ash releasing tube is arranged the first push-pull valve and the second push-pull valve.
Owing to arranging multistage equal dirt turbulator in desulfurization reaction tower, make desulfurizing agent and circulating ash in reaction tower with flue gas Homogeneous phase mixing all the time, strong mass transfer, the cross section of desulfurization reaction tower is rectangle, arranges composition body structure with deduster backrest, compact conformation of the present invention and metal consumption low, desulfuration efficiency is high, every one-level equal dirt turbulator has certain desulfuration efficiency, and by increasing the progression of equal dirt turbulator, total desulfuration efficiency can reach more than 95% easily.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of equal dirt turbulent flow circulating fluid bed flue-gas desulfurizing device;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is the structural representation of the equal dirt turbulator of a kind of flat deflector;
Fig. 5 is the C-C view of Fig. 4;
Fig. 6 is the D-D view of Fig. 4;
Fig. 7 is that the equal dirt turbulator of a kind of flat deflector superposes layout drawing in length and breadth;
Fig. 8 is the structural representation of the equal dirt turbulator of a kind of curved groove deflector;
Fig. 9 is the E-E view of Fig. 8;
Figure 10 is the F-F view of Fig. 8;
Figure 11 is that the equal dirt turbulator of a kind of curved groove deflector superposes layout drawing in length and breadth;
Figure 12 is the structural representation of the equal dirt turbulator of a kind of dust collecting trough;
Figure 13 is the G-G view of Figure 12;
Figure 14 is a kind of structural representation of vertical all dirt turbulators;
Figure 15 is the top view of Figure 14;
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated:
Shown in Fig. 1-15, a kind of all dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device, it comprises desulfurization reaction tower 4, deduster 13, material-returning device and flue gas humidifying cooling device, be characterized in, multistage equal dirt turbulator is furnished with in described desulfurization reaction tower 4, flue gas and sweetening solid particle are divided into multiply air-flow and carry out repeatedly cross-turn break-in campaign in equal dirt turbulator, are distributed in desulfurization reaction tower 4 to sweetening solid uniform particles.Flue gas enters desulfurizer by gas approach 3, flue gas first flows downward in passageway, carry circulating ash to bottom flue gas turning 2 and enter desulfurization reaction tower conversion zone, multistage equal dirt turbulator is arranged in desulfurizing tower conversion zone, the flue that flue gas upwards flows is arranged multiple equal dirt turbulator 5, flue gas is turned to desulphurization reaction top of tower and is turned around to flow downward, vertical all dirt turbulators 8 are arranged in flue gas and turn on the flue of 31 flowings, equal dirt turbulator 5 arranged by the flue that flue gas flows downward, certain space is left as reative cell between equal dirt turbulator at different levels, the clear height of reative cell is less than 5 meters, flow through a segment distance to avoid Dual-Phrase Distribution of Gas olid and produce particle agglomeration, the non-uniform phenomenon of bubble and channel, cause the reaction efficiency of reative cell low.Owing to all arranging equal dirt turbulator in desulfurizing tower conversion zone various piece, sweetening solid particle can be evenly distributed in desulfurization reaction tower conversion zone all the time, and the space, everywhere of desulfurization reaction tower conversion zone all obtains efficiency utilization.
Flue gas of the present invention is divided into two at desulphurization reaction top of tower, flow along both sides after turning, exhaust pass is arranged near the both sides of tower, be connected with deduster 13 at the rear of tower, form a body structure with deduster 13, the intersection between desulfurization reaction tower 4, exhaust pass and deduster 13, adopt common diaphragm, desulfurization and dedusting structure realizes integration, and this can reduce metal consumption and floor space significantly.
Desulfurization reaction tower about 4 exhaust pass arranges shutoff door 7, in the import of deduster 13, shutter inertia separator 6 is set, ash-laden gas enters ash bucket 15 through shutter inertia separator 6 part dust is separated, and the flue gas of lower dust concentration enters deduster 13.
Deduster 13 can be electrostatic precipitator or sack cleaner, and embodiment provided by the invention is sack cleaner.Cage bone, cloth bag 12, Gas-cleaning box 9, lift valve 10, exhaust pass 11, exhanst gas outlet 14, ash bucket 15, strength skewed slot 16, first push-pull valve 17, second push-pull valve 19 and ash outlet 18 etc. are set in sack cleaner, dust flue gas is after cloth bag 12 filters, enter Gas-cleaning box 9, discharge deduster by lift valve 10 and exhaust pass 11.Described deduster 13 is divided into two, air door 7 is set in respective inlet flue duct, lift valve 10 is set in respective exhaust pass, bottom ash releasing tube arranges the first push-pull valve 17 and the second push-pull valve 19, form independently dust removing units, when the cloth bag in certain dust removing units or miscellaneous part damage, device can be under operation, the import and export shutoff door of its correspondence and push-pull valve are closed, damage parts to cloth bag or other and implement on-bne repair, this will improve the reliability of plant running widely.Deduster simple for structure, the desulfurizing tower being rectangle with cross section forms complete integrated case structure.
Flue gas humidifying cooling device of the present invention can adopt the mode directly to desulfurizing tower water spray or slurries, and equal dirt turbulator should be arranged into the position after drop evaporates substantially, to avoid the fouling of equal dirt turbulator.Because evaporation drop needs the longer time of staying, so the volume of desulfurizing tower is large, manufacturing cost is high.The present invention adopts a kind of better implementation method, water and desulfurizing agent are first sprayed shine in circulating ash, be 5% ~ 15% can to flow inadherent minute solid particles by being uniformly mixed into moisture content, specific area is large, with high-pressure blast, it is evenly sent into desulfurizing tower evaporator section to mix with flue gas, because moisture solid particle can be dry rapidly in very little evaporator section, the equal dirt turbulator non flouling behaviour arranged subsequently, so the little cost of desulfurizing tower volume is low.
Flue gas humidifying cooling device comprises multi-stage stirrer 1, (operating) water nozzle 21, wind inlet 22, desulfurizing agent import 23 and desulfurizing tower evaporator section, desulfurizing agent can be liquid or solid-state alkaline matter, circulating ash falls into strength skewed slot 16 through ash flue bucket 15, multi-stage stirrer 1 is entered by lock gate hatch 19 and rotary feeder 20, at Tong Shui, after desulfurizing agent fully mixes, being mixed into moisture content by multi-stage stirrer 1 is 5% ~ 15% flowable minute solid particles, desulfurizing tower evaporator section is sent into by high-pressure blast, the tiny flowable hybrid solid particle of high humility in desulfurizing tower evaporator section by promptly dry, flue gas obtains humidifying cooling desulfurization.Multi-stage stirrer can make water, desulfurizing agent and circulating ash stir evenly.
Equal dirt turbulator 5 of the present invention is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent cells is arranged crosswise in length and breadth, Dual-Phrase Distribution of Gas olid can longitudinally be uniformly distributed by the equal dirt turbulent flow unit longitudinally arranged, Dual-Phrase Distribution of Gas olid can transversely be uniformly distributed by the equal dirt turbulent flow unit of lateral arrangement, and their intersection superpositions can make solid particle be uniformly distributed on desulfurizing tower cross section.
The each equal dirt turbulent flow unit of equal dirt turbulator 5 is made up of many dividing plates 25 and deflector 24, in the gas channel that each dividing plate 25 etc. separates, arrange deflector 24, deflector 24 and air-flow initial flow direction 26 shape are in an angle, angle more air flow is turned larger, disturbance between gas-solid is stronger, but gas-flow resistance is larger, good angle can be 20 ° ~ 50 °, as angle < 20 °, air-flow guide effect is little, as angle > 50 °, airstream drag coefficient is excessive, and ash is easily tied in deflector 24 back side.The ratio of deflector 24 length in equal dirt turbulator 5 and the spacing of adjacent baffle 24 is higher, and air-flow guide effect is more remarkable, but too high can increase material consumption, distributes equably without too many benefit to solid particle, so this ratio is 1 ~ 3 better.Airflow passes deflector 24 is turned, deflector 24 arranged crosswise of neighboring gas flow path.Dual-Phrase Distribution of Gas olid, through equal dirt turbulator, is divided into multiple draft, and adjacent air-flow does one in front and one in back or one the first from left right-hand bend motion, and make bubble-break, cluster of grains dissipates, and solid particle is evenly distributed in flue gas.Dual-Phrase Distribution of Gas olid is constantly turned flowing in equal dirt turbulator, and cause the speed of related movement of solid particle in flue gas to be multiplied, mass transfer intensity is significantly improved.Deflector 25 and dividing plate 26 adopt high-abrasive material manufacture, and its high-abrasive material can be the material such as antifriction metal (AFM) or metal composite ceramal.
Described equal dirt turbulator 5 can have various ways.
Equal dirt turbulator 5 can be the equal dirt turbulator of a kind of flat deflector, as shown in Figure 4, Figure 5, Figure 6 and Figure 7, the flat deflector of every one-level equal dirt turbulator is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent equal dirt turbulent flow unit arranged crosswise in length and breadth, described equal dirt turbulent flow unit is made up of many dividing plates 25 and deflector 24, in the gas channel that each dividing plate 25 etc. separates, arrange deflector 24, deflector 24 and air-flow initial flow direction 26 form the angle of 20 ° ~ 50 °, deflector 24 arranged crosswise of neighboring gas flow path.
In order to strengthen mass transfer further and increase the time of staying of solid particle in desulfurizing tower, equal dirt turbulator 5 can be the equal dirt turbulator of a kind of curved groove deflector, as Fig. 8, Fig. 9, shown in Figure 10 and Figure 11, every one-level curved groove deflector equal dirt turbulator is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent equal dirt turbulent flow unit arranged crosswise in length and breadth, described equal dirt turbulent flow unit is made up of many dividing plates 25 and deflector 24, in the gas channel that each dividing plate 25 etc. separates, arrange deflector 24, deflector 24 and air-flow initial flow direction 26 form the angle of 20 ° ~ 50 °, deflector 24 arranged crosswise of neighboring gas flow path, the flue gas outflow end of deflector 24 is provided with control of dust crotch 27.Dual-Phrase Distribution of Gas olid is turned with deflector, and under the influence of centrifugal force, a large amount of solid particle is separated enters control of dust curved groove 27, dust concentration is multiplied herein, along with gathering and the dissipation of dust, dust and flue gas speed of related movement are multiplied, and mass transfer strengthens greatly.
Equal dirt turbulator 5 can be the equal dirt turbulator of a kind of dust collecting trough, as shown in Figure 12 and Figure 13, the equal dirt turbulent flow unit of dust collecting trough equal dirt turbulator is equipped with dust collecting trough 28, equal dirt turbulator 5 is made up of multiple equal dirt turbulent flow unit with dust collecting trough 28, dust collecting trough 28 is arranged with the deflector 24 of arranged crosswise and dividing plate 25 interval of longitudinal layout, level is spliced into one deck, and equal dirt turbulent flow unit can multilayer superpose along airflow direction, and each layer dust collecting trough 28 stagger arrangement is placed.Dual-Phrase Distribution of Gas olid does S turn campaign in the equal dirt turbulator of dust collecting trough, and because angle of turn is large, dust collecting trough 28 can assemble the dust of higher concentration, and the time of staying of dust in equal dirt turbulator increases greatly, and the mass transfer between gas-solid is further strengthened.
Deflector 24 length in above-mentioned equal dirt turbulator 5 and between adjacent baffle 24 ratio of spacing distance be 1 ~ 3.
Can separately or the flat deflector of mixed-arrangement equal dirt turbulator, curved groove deflector equal dirt turbulator and the equal dirt turbulator of dust collecting trough in the flue gas ascent stage of desulfurization reaction tower 4, can the equal dirt turbulator of cloth horizontalization deflector in the flue gas descending branch of desulfurization reaction tower 4.
Vertical all dirt turbulators 8 are arranged at turning above desulfurization reaction tower 4, as shown in Figure 14 and Figure 15, channel member 29 is arranged vertically in equal dirt turbulator 8, channel member 29 stagger arrangement multilayer is arranged, Dual-Phrase Distribution of Gas olid is when doing half-turn 30, dust is successively separated, and is diffused into again in the flue gas flowed downward subsequently gradually equably.
One of the present invention equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device, mass transfer between the higher gas-solid of velocity of flue gas in its desulfurizing tower is stronger, but flue gas resistance is higher, the wearing and tearing of equal dirt turbulator are more serious, velocity of flue gas is too low, and gas solid transfer intensity will be caused low, and the large cost of desulfurizing tower cross section is high, the specified flue gas flow rate of inventive desulfurization tower void tower cross-section is 2 ~ 6m/s, and the specified flue gas flow rate in equal dirt turbulator is 4 ~ 12m/s.
Because the desulfurizing tower conversion zone of the present invention in stack gas desulfurization and dust removal of circulating fluid bed device is all provided with equal dirt turbulator everywhere, thorough elimination Dual-Phrase Distribution of Gas olid flows through a segment distance can produce the non-uniform phenomenon such as bubble and wall particle aggregation, utilize the break-in campaign that two phase flow is constantly turned in equal dirt turbulator, the speed of related movement of dust and flue gas is multiplied, mass transfer intensity strengthens greatly, micro-alkaline dust containing wetting efficiently carries out in whole desulfurizing tower conversion zone all the time with the chemical reaction of the sour gas in flue gas, so the stack gas desulfurization and dust removal of circulating fluid bed device than prior art improves by the desulfuration efficiency of stack gas desulfurization and dust removal of circulating fluid bed device of the present invention significantly.
Claims (10)
1. an equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device, it comprises desulfurization reaction tower, deduster, material-returning device and flue gas humidifying cooling device, it is characterized in that: in described desulfurization reaction tower (4), be furnished with multistage equal dirt turbulator, flue gas and sweetening solid particle are divided into multiply air-flow and carry out repeatedly cross-turn break-in campaign in equal dirt turbulator, are distributed in desulfurization reaction tower to sweetening solid uniform particles; Described equal dirt turbulator (5) is the equal dirt turbulator of a kind of flat deflector, the flat deflector of every one-level equal dirt turbulator is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent equal dirt turbulent flow unit arranged crosswise in length and breadth, described equal dirt turbulent flow unit is made up of many dividing plates (25) and deflector (24), in the gas channel that each dividing plate (25) etc. separates, arrange deflector (24), deflector (24) and air-flow initial flow direction (26) form the angle of 20 ° ~ 50 °, deflector (24) arranged crosswise of neighboring gas flow path.
2. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, it is characterized in that: described equal dirt turbulator (5) is the equal dirt turbulator of a kind of curved groove deflector, every one-level curved groove deflector equal dirt turbulator is made up of along air flow direction superposition multiple equal dirt turbulent flow unit, adjacent equal dirt turbulent flow unit arranged crosswise in length and breadth, described equal dirt turbulent flow unit is made up of many dividing plates (25) and deflector (24), in the gas channel that each dividing plate (25) etc. separates, arrange deflector (24), deflector (24) and air-flow initial flow direction (26) form the angle of 20 ° ~ 50 °, deflector (24) arranged crosswise of neighboring gas flow path, the flue gas outflow end of deflector (24) is provided with control of dust crotch (27).
3. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, it is characterized in that: described equal dirt turbulator (5) is the equal dirt turbulator of a kind of dust collecting trough, the equal dirt turbulent flow unit of dust collecting trough equal dirt turbulator is equipped with dust collecting trough (28), equal dirt turbulator (5) is made up of multiple equal dirt turbulent flow unit with dust collecting trough (28), dust collecting trough (28) is arranged with the deflector (24) of arranged crosswise and dividing plate (25) interval of longitudinal layout, level is spliced into one deck, equal dirt turbulent flow unit can multilayer superpose along airflow direction, each layer dust collecting trough (28) stagger arrangement is placed.
4. the equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1,2 or 3, is characterized in that: deflector (24) length in described equal dirt turbulator (5) and between adjacent baffle (24) ratio of spacing distance be 1 ~ 3.
5. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, it is characterized in that: can separately or the flat deflector of mixed-arrangement equal dirt turbulator, curved groove deflector equal dirt turbulator and the equal dirt turbulator of dust collecting trough in the flue gas ascent stage of desulfurization reaction tower (4), can the equal dirt turbulator of cloth horizontalization deflector in the flue gas descending branch of desulfurization reaction tower (4).
6. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, is characterized in that: arrange vertical all dirt turbulators (8) at the turning of desulfurization reaction tower (4) top.
7. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 6, is characterized in that: be arranged vertically channel member (29) in described vertical all dirt turbulators (8), and channel member (29) stagger arrangement multilayer is arranged.
8. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, it is characterized in that: described flue gas humidifying cooling device comprises multi-stage stirrer (1), (operating) water nozzle (22), wind inlet (23), desulfurizing agent import (24) and desulfurizing tower evaporator section, by (operating) water nozzle (22) and desulfurizing agent import (24), water and desulfurizing agent are first sprayed solarization in circulating ash, being mixed into moisture content by multi-stage stirrer (1) is 5% ~ 15% flowable minute solid particles, sent into desulfurizing tower evaporator section with high-pressure blast to mix with flue gas, flue gas is made to obtain humidifying cooling.
9. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, it is characterized in that: the cross section of described desulfurization reaction tower (4) is rectangle, exhaust pass is arranged near desulfurization reaction tower (4) both sides, the rear portion of desulfurization reaction tower (4) is connected with deduster (12), a body structure is formed with deduster (12), flue gas is divided into two at desulfurization reaction tower (4) top, flow downward along both sides after turning, enter deduster (12) through louver separator (6).
10. equal dirt turbulent flow stack gas desulfurization and dust removal of circulating fluid bed device according to claim 1, it is characterized in that: described deduster (12) is divided into two, air door (7) is set in respective inlet flue duct, lift valve (10) is set in respective exhaust pass, bottom ash releasing tube is arranged the first push-pull valve (17) and the second push-pull valve (19).
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| CN201310132136.3A CN103157372B (en) | 2013-04-17 | 2013-04-17 | Flue gas desulfurization device of uniform dust turbulence circulating fluidized bed |
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| CN201310132136.3A CN103157372B (en) | 2013-04-17 | 2013-04-17 | Flue gas desulfurization device of uniform dust turbulence circulating fluidized bed |
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| CN103157372B true CN103157372B (en) | 2015-01-28 |
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| CN104492248B (en) * | 2014-12-24 | 2016-05-25 | 西昌市蓝鼎环保科技有限公司 | For the dry method desulfuration system of high sulphur concentration flue gas |
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| US6224833B1 (en) * | 1998-12-15 | 2001-05-01 | Koch-Glitsch, Inc. | Apparatus for contacting of gases and solids in fluidized beds |
| NL1012082C2 (en) * | 1999-05-18 | 2000-11-21 | Dsm Nv | Fluidised bed reactor. |
| US20030194356A1 (en) * | 2002-04-11 | 2003-10-16 | Meier Paul F. | Desulfurization system with enhanced fluid/solids contacting |
| US7241425B2 (en) * | 2004-01-13 | 2007-07-10 | Glatt Ingenieurtechnik Gmbh | Fluidized bed apparatus for batch-by-batch or continuous process control and method for operating a fluidized bed apparatus |
| CN100460047C (en) * | 2006-12-01 | 2009-02-11 | 沙晓农 | Circulation fluidized bed dry method flue gas desulfur device |
| CN100460050C (en) * | 2007-02-16 | 2009-02-11 | 中国石油化工集团公司 | Fluidised bed gas and solid contacting device |
| CN102553495B (en) * | 2010-12-16 | 2013-12-25 | 攀钢集团钢铁钒钛股份有限公司 | Fluid bed reactor and gas distribution plate for fluid bed reactor |
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