CN109276978A - A kind of efficient tail gas wet method desulfurizer - Google Patents

A kind of efficient tail gas wet method desulfurizer Download PDF

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Publication number
CN109276978A
CN109276978A CN201811459396.0A CN201811459396A CN109276978A CN 109276978 A CN109276978 A CN 109276978A CN 201811459396 A CN201811459396 A CN 201811459396A CN 109276978 A CN109276978 A CN 109276978A
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CN
China
Prior art keywords
tube
lye
desulfurizing tower
conical pipe
desulfurizer
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Application number
CN201811459396.0A
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Chinese (zh)
Inventor
单林祥
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单林祥
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Application filed by 单林祥 filed Critical 单林祥
Priority to CN201811459396.0A priority Critical patent/CN109276978A/en
Publication of CN109276978A publication Critical patent/CN109276978A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/504Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/80Semi-solid phase processes, i.e. by using slurries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/40Alkaline earth metal or magnesium compounds
    • B01D2251/404Alkaline earth metal or magnesium compounds of calcium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The invention discloses a kind of efficient tail gas wet method desulfurizers, including desulfurizing tower ontology, the desulfurizing tower body bottom portion is connected with several tentatively mixed release mechanisms, the tentatively mixed release mechanism includes lye efferent duct, flue gas inlet pipe, outer tube and mixed liquor efferent duct, the end of the lye efferent duct is connect by flange with conical pipe one, the diameter of conical pipe one is gradually increased in the flow direction for carrying over lye, the outer cover of conical pipe one is equipped with outer tube, flue gas inlet pipe is connected on outer tube, and there are gaps between outer tube and conical pipe one, form negative pressure cavity, the end of the outer tube is connect by connecting tube with conical pipe two, the beneficial effects of the present invention are: passing through the design of tentatively mixed release mechanism, after flue gas in negative pressure cavity is contacted with swiftly flowing lye, it can be blended into lye, the two completes chemical reaction, it completes Preliminary desulfuration operations can continue several secondary responses in desulfurizing tower ontology, to guarantee the completeness of desulfurization.

Description

A kind of efficient tail gas wet method desulfurizer
Technical field
The present invention relates to a kind of desulfurizer, specifically a kind of efficient tail gas wet method desulfurizer.
Background technique
Flue gas desulfurization, which refers to, removes oxysulfide from flue gas or other industrial waste gases.In wet method fume desulfurizing system, Alkaline matter (usually aqueous slkali, more situations are the slurries of alkali) and flue gas are met in spray tower.SO2 is molten in flue gas Solution in water, forms a kind of dilute acid soln, and neutralization reaction then occurs with the alkaline matter being dissolved in water.React the Asia generated Sulfate and sulfate are precipitated from aqueous solution, and the relative solubility that situation depends on difference salt present in solution is precipitated.Example Such as, the dissolubility of calcium sulfate is relatively poor, thus is easy to be precipitated;The dissolubility of sodium sulphate and ammonium sulfate is then much better.
Its efficiency of existing wet desulphurization device is lower, and neutralization reaction process is not thorough enough.
Summary of the invention
The purpose of the present invention is to provide a kind of efficient tail gas wet method desulfurizers, to solve to mention in above-mentioned background technique Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of efficient tail gas wet method desulfurizer, including desulfurizing tower ontology, the desulfurizing tower body bottom portion are connected with several Tentatively mixed release mechanism, the tentatively mixed release mechanism includes lye efferent duct, flue gas inlet pipe, outer tube and mixed liquor efferent duct, institute The end of lye efferent duct is stated to connect by flange with conical pipe one, the diameter of conical pipe one the flow direction for carrying over lye by It is cumulative plus, the outer cover of conical pipe one is equipped with outer tube, be connected with flue gas inlet pipe on outer tube, and outer tube and conical pipe one it Between there are gap, form negative pressure cavity, the end of the outer tube is connect by connecting tube with conical pipe two, the diameter of conical pipe two It is gradually increased in the flow direction for carrying over lye, conical pipe one is opposite with the position of connecting tube and is reserved with gap therebetween.
As a further solution of the present invention: the outer tube is fixed with equal wind at the position opposite with one nozzle of conical pipe Plate.
As further scheme of the invention: several tentatively mixed release mechanisms are mounted on desulfurizing tower ontology at equal intervals Outside, and liquid direction and the desulfurizing tower ontology out of preliminary mixed release mechanism are tangent.
As further scheme of the invention: the bottom and top of the desulfurizing tower ontology are respectively equipped with leakage fluid dram and top It covers, is connected with exhaust pipe on top cover.
As further scheme of the invention: the desulfurizing tower ontology is at the top position of corresponding preliminary mixed release mechanism It is additionally provided with fixed link, several atomizers are installed in the fixed link.
As further scheme of the invention: the top of the desulfurizing tower ontology also passes through fixed link and is equipped with several Lye spray head.
As further scheme of the invention: the desulfurizing tower ontology is between corresponding lye spray head and atomizer The staggered baffle in position is installed, the staggered baffle in position forms tortuous air duct at position.
Compared with prior art, the beneficial effects of the present invention are: passing through the design of tentatively mixed release mechanism, the cigarette in negative pressure cavity It after gas is contacted with swiftly flowing lye, can be blended into lye, the two completes chemical reaction, completes preliminary desulfurization and makees Industry, while after the mixed liquor that flue gas and lye are formed enters conical pipe two, due to the increase of volume, lye flow velocity can phase To slowing down, the sufficient time is left to reaction, to guarantee the abundant reaction of the two, later, unreacted or undesulfured part cigarette Gas can enter the desulfuration operations continued in desulfurizing tower ontology, also, in desulfurizing tower ontology, can continue several times Reaction, to guarantee the completeness of desulfurization.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of efficient tail gas wet method desulfurizer.
Fig. 2 is a kind of structural schematic diagram of tentatively mixed release mechanism in efficient tail gas wet method desulfurizer.
Fig. 3 is the sectional view along A-A of Fig. 1.
In figure: the tentatively mixed release mechanism of 1- desulfurizing tower ontology, 2- top cover, 3-, 4- leakage fluid dram, 5- fixed link, 6- atomizer, 7- baffle, the air duct 8-, 9- lye spray head, 10- exhaust pipe, 301- lye efferent duct, 302- flue gas inlet pipe, the output of 303- mixed liquor Pipe, 304- conical pipe one, 305- negative pressure cavity, 306- outer tube, 307- homogenating plate, 308- connecting tube, 309- conical pipe two, 310- Flange.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of efficient tail gas wet method desulfurizer, including desulfurizing tower ontology 1, institute It states 1 bottom of desulfurizing tower ontology and is connected with several tentatively mixed release mechanisms 3, specifically, the tentatively mixed release mechanism 3 includes that lye is defeated The end of outlet pipe 301, flue gas inlet pipe 302, outer tube 306 and mixed liquor efferent duct 303, the lye efferent duct 301 passes through method Orchid 310 connect with conical pipe 1, and the diameter of conical pipe 1 is gradually increased in the flow direction for carrying over lye, conical pipe one 304 outer cover is equipped with outer tube 306, and flue gas inlet pipe 302, and outer tube 306 and conical pipe one are connected on outer tube 306 There are gaps between 304, form negative pressure cavity 305, and due to the characteristic of conical pipe 1, lye enters from lye efferent duct 301 Its flow velocity will increase after to conical pipe 1, and negative pressure cavity 305 can be made to form negative pressure, and flue gas inlet pipe 302 can enter negative pressure In chamber 305, preferably, it is fixed with homogenating plate 307 at the position opposite with one 304 nozzle of conical pipe of the outer tube 306, with So that flue gas can be mixed uniformly with lye under the action of homogenating plate 307, the end of the outer tube 306 passes through connecting tube 308 connect with conical pipe 2 309, and herein, the diameter of conical pipe 2 309 is gradually increased in the flow direction for carrying over lye, taper Pipe 1 is opposite with the position of connecting tube 308 and is reserved with gap therebetween, flue gas and flow at high speed in negative pressure cavity 305 Lye contact after, can be blended into lye, the two complete chemical reaction, complete preliminary desulfuration operations, while in flue gas After the mixed liquor formed with lye enters conical pipe 2 309, due to the increase of volume, lye flow velocity opposite can slow down, and give Reaction leaves the sufficient time, and to guarantee the abundant reaction of the two, later, unreacted or undesulfured partial fume can be entered The desulfuration operations continued in desulfurizing tower ontology 1.
Several tentatively mixed release mechanisms 3 are mounted at equal intervals outside desulfurizing tower ontology 1 as a preferred technical solution, and Liquid direction and the desulfurizing tower ontology 1 out of preliminary mixed release mechanism 3 are tangent, the gas-liquid mixture that several tentatively mixed release mechanisms 3 export It can collide, promote reaction effect again.
Embodiment 2
Referring to Fig. 1, in the embodiment of the present invention, a kind of efficient tail gas wet method desulfurizer, the bottom of the desulfurizing tower ontology 1 Portion and top are respectively equipped with leakage fluid dram 4 and top cover 2, and exhaust pipe 10 is connected on top cover 2, for arranging the sufficient flue gas of desulfurization Out.Herein, the desulfurizing tower ontology 1 is additionally provided with fixed link 5, the fixation at the top position of corresponding preliminary mixed release mechanism 3 Several atomizers 6 are installed, certainly, which is connect by pipeline with alkali storage tank, alkali herein on bar 5 Liquid holding vessel is equally connect with lye efferent duct 301, setting purpose be for unreacted or undesulfured partial fume into Row desulfurization, the lye of ejection or can be recycled with the lye after the reacting of sulfide by leakage fluid dram 4.
Preferably, the top of the desulfurizing tower ontology 1, which also passes through fixed link 5, is equipped with several lye spray heads 9, take off Sulphur tower ontology 1 is equipped with the staggered baffle 7 in position at the position between corresponding lye spray head 9 and atomizer 6, and position interlocks Baffle 7 form tortuous air duct 8, the flue gas flow rate exported from air duct slows down, and the lye sprayed with lye spray head 9 can be again Reaction guarantees the completeness of desulfurization, while the lye that lye spray head 9 sprays is during the falling process, can equally take off with preliminary mix The flue gas that mechanism 3 exports is reacted.
It should be strongly noted that the cigarette in the technical program, by tentatively mixing the design of release mechanism 3, in negative pressure cavity 305 It after gas is contacted with swiftly flowing lye, can be blended into lye, the two completes chemical reaction, completes preliminary desulfurization and makees Industry, while after the mixed liquor that flue gas and lye are formed enters conical pipe 2 309, due to the increase of volume, lye flow velocity It opposite can slow down, leave the sufficient time to reaction, to guarantee the abundant reaction of the two, later, unreacted or undesulfured portion Divide flue gas that can enter the desulfuration operations continued in desulfurizing tower ontology 1, also, in desulfurizing tower ontology 1, can continue Several secondary responses, to guarantee the completeness of desulfurization.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of efficient tail gas wet method desulfurizer, including desulfurizing tower ontology (1), desulfurizing tower ontology (1) the bottom connection There are several tentatively mixed release mechanism (3), which is characterized in that tentatively mixed release mechanism (3) include lye efferent duct (301), cigarette The end of gas inlet pipe (302), outer tube (306) and mixed liquor efferent duct (303), the lye efferent duct (301) passes through flange (310) it is connect with conical pipe one (304), the diameter of conical pipe one (304) is gradually increased in the flow direction for carrying over lye, taper The outer cover of pipe one (304) is equipped with outer tube (306), is connected with flue gas inlet pipe (302) on outer tube (306), and outer tube (306) there are gaps between conical pipe one (304), are formed negative pressure cavity (305), the end of the outer tube (306) passes through company Adapter tube (308) is connect with conical pipe two (309), and the diameter of conical pipe two (309) is gradually increased in the flow direction for carrying over lye, Conical pipe one (304) is opposite with the position of connecting tube (308) and is reserved with gap therebetween.
2. a kind of efficient tail gas wet method desulfurizer according to claim 1, which is characterized in that the outer tube (306) it is fixed at the position opposite with conical pipe one (304) nozzle homogenating plate (307).
3. a kind of efficient tail gas wet method desulfurizer according to claim 1 or 2, which is characterized in that several are preliminary Mixed release mechanism (3) are mounted on desulfurizing tower ontology (1) outside at equal intervals, and liquid direction and the desulfurizing tower out of tentatively mixed release mechanism (3) Ontology (1) is tangent.
4. a kind of efficient tail gas wet method desulfurizer according to claim 3, which is characterized in that the desulfurizing tower ontology (1) bottom and top are respectively equipped with leakage fluid dram (4) and top cover (2), and exhaust pipe (10) are connected on top cover (2).
5. a kind of efficient tail gas wet method desulfurizer according to claim 4, which is characterized in that the desulfurizing tower ontology (1) it is additionally provided with fixed link (5), is equipped on the fixed link (5) several at the top position of corresponding preliminary mixed release mechanism (3) A atomizer (6).
6. a kind of efficient tail gas wet method desulfurizer according to claim 5, which is characterized in that the desulfurizing tower ontology (1) top also passes through fixed link (5) and is equipped with several lye spray heads (9).
7. a kind of efficient tail gas wet method desulfurizer according to claim 6, which is characterized in that the desulfurizing tower ontology (1) the staggered baffle in position (7) is installed at the position between corresponding lye spray head (9) and atomizer (6), position interlocks Baffle (7) form tortuous air duct (8).
CN201811459396.0A 2018-11-30 2018-11-30 A kind of efficient tail gas wet method desulfurizer Withdrawn CN109276978A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN202122894U (en) * 2011-06-22 2012-01-25 上海金匙环保科技股份有限公司 Efficient liquid-surface micro-division desulfurizing and dedusting device
CN204543972U (en) * 2015-04-17 2015-08-12 烟台创元热能科技有限公司 A kind of wet ammonia process desulfurizing ammonifying device
CN205886606U (en) * 2016-08-04 2017-01-18 宜昌长江陶瓷有限责任公司 Ceramic kiln flue gas desulphurization device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201921642U (en) * 2010-12-04 2011-08-10 金川集团有限公司 Gas-liquid mixing device
CN202122894U (en) * 2011-06-22 2012-01-25 上海金匙环保科技股份有限公司 Efficient liquid-surface micro-division desulfurizing and dedusting device
CN204543972U (en) * 2015-04-17 2015-08-12 烟台创元热能科技有限公司 A kind of wet ammonia process desulfurizing ammonifying device
CN205886606U (en) * 2016-08-04 2017-01-18 宜昌长江陶瓷有限责任公司 Ceramic kiln flue gas desulphurization device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
岳涛,魏志勇,左朋莱等: "《工业锅炉大气污染控制技术与应用》", 30 November 2016, 中国环境出版社 *
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