CN107297134B - A kind of flue gas purification device of high desulfurization efficiency - Google Patents

A kind of flue gas purification device of high desulfurization efficiency Download PDF

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Publication number
CN107297134B
CN107297134B CN201710702338.5A CN201710702338A CN107297134B CN 107297134 B CN107297134 B CN 107297134B CN 201710702338 A CN201710702338 A CN 201710702338A CN 107297134 B CN107297134 B CN 107297134B
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gas
desulfurizer
lower shell
heat recovery
slanted
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CN107297134A (en
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黄巧香
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Hebei Uibang Environmental Protection Equipment Technology Co., Ltd.
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Hebei Uibang Environmental Protection Equipment Technology Co Ltd
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Priority to CN201710702338.5A priority Critical patent/CN107297134B/en
Priority to CN201710400708.XA priority patent/CN107008137B/en
Publication of CN107297134A publication Critical patent/CN107297134A/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
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06Spray cleaning
    • 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
    • B01D53/52Hydrogen sulfide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2247/00Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/04Regenerating the washing fluid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2247/00Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D2247/10Means for removing the washing fluid dispersed in the gas or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a kind of purification of sulfur-containing smoke gas and heat recovery systems, including heat recovery apparatus, desulfurizer and liquid tank;The heat recovery apparatus includes one opening one for two heat recovery towers, is equipped with spiral heat exchange tube core in each heat recovery tower;The desulfurizer is connect with heat recovery apparatus pipeline, net gas outlet is equipped at the top of the desulfurizer, thermometer, sulphur meter and the first sequencing valve are successively arranged on the net gas outlet, and pipeline is gone back on net gas outlet, between sulphur meter and sequencing valve and is connected with plate heat exchanger, and is equipped with the second sequencing valve in the plate heat exchanger inlet end;It is also connected by the air inlet duct of third sequencing valve and desulfurizer on the net gas outlet, between sulphur meter and the first sequencing valve.The system can effectively remove the hazardous particulate matter in furnace flue gas, make furnace flue gas qualified discharge, also, can also make full use of the waste heat of flue gas, energy conservation and environmental protection.Invention additionally discloses a kind of desulfurizers.

Description

A kind of flue gas purification device of high desulfurization efficiency
The present invention is that application No. is 201710400708.X, applying date 2017.05.31, a kind of entitled desulfurization Device and the divisional application of purification and heat recovery system patent application containing the device.
Technical field
The present invention relates to a kind of smoke processing system more particularly to a kind of flue gas purification devices of high desulfurization efficiency.
Background technique
In existing mineral hot furnace kiln production process, part stove high-temperature flue gas mainly uses air cooling technique direct emission, waste heat Energy zero utilizes, and causes a large amount of wastes of energy, moreover, usually contained in furnace flue gas a large amount of uncombusted coal particles and Containing sulfur granules, it will seriously pollute environment.And it is that filler is put into tower that existing desulfurizing tower is constituted substantially.Gas is with low stream Speed from one end by packing layer in desulfurizing tower, staying in filler after hydrogen sulfide adsorption or absorbing reaction sulphidisation or polysulfide In layer, purified gas is discharged from the desulfurizing tower other end, realizes the purpose of desulfurization process.And this desulfurizing tower generally requires more High tower height and bigger tower diameter load desulfurizing agent, cause resistance to increase, are unfavorable for the normal operation of system.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problems, provide a kind of gas cleaning dress of high desulfurization efficiency It sets, which can effectively remove the hazardous particulate matter in furnace flue gas, make furnace flue gas qualified discharge.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of flue gas purification device of high desulfurization efficiency, including desulfurizer, the desulfurizer include tower body, Yi Ji Blender, fairing, spraying layer and the demister from bottom to top set gradually in tower body, the tower body side bottom are equipped with The cold air inlet being connect with cold air outlet pipeline;It is equipped with net gas at the top of the tower body to export, tower body bottom is equipped with leakage fluid dram, tower body Inlet is equipped with above side, spraying layer;Institute's fairing includes the first rectification layer and the second rectification layer, and every layer of rectification layer is equal It is fixed to the intracorporal clamping rings of tower including matching with tower body, for layer will to be rectified, is arranged in parallel in more in clamping rings The solid fixed link of root, and it is socketed in the cylindrical conduit that can be rotated in fixed link and around fixed link;The first rectification layer First gas distributor is equipped between the second rectification layer, equipped with second gas point between the second rectification layer and cold air inlet Cloth device is laid with annular in shape and outgassing direction in the direction of the clock several on the first gas distributor and inclines clockwise Skewed gas flow pipe on first gas distributor, is additionally provided with multiple flowing water mouths, the second gas point between slanted gas flow pipe clockwise Several slanted gas flow pipes counterclockwise of annular in shape and outgassing direction counterclockwise, second gas point are laid on cloth device It is additionally provided with a water outlet on cloth device, the slanted gas flow pipe clockwise and the air-flow point where slanted gas flow Guan Junyu counterclockwise Fabric swatch is in 30~40 °, and slanted gas flow pipe and slanted gas flow pipe counterclockwise lower section are disposed as horn-like, top and open clockwise Mouth is obliquely;It is set as horn-like above the flowing water mouth.
Preferably, the slanted gas flow pipe clockwise and the airflow-distribution board where slanted gas flow Guan Junyu counterclockwise are in 35 ~40 °.
Preferably, the slanted gas flow pipe clockwise and the airflow-distribution board where slanted gas flow Guan Junyu counterclockwise are in 37.5°。
It preferably, further include heat recovery apparatus and liquid tank, the heat recovery apparatus opens one including one for two recuperations of heat Tower is equipped with spiral heat exchange tube core in each heat recovery tower;The desulfurizer is connect with heat recovery apparatus pipeline, the desulfurization It is equipped with net gas outlet at the top of device, is successively arranged thermometer, sulphur meter and the first sequencing valve on the net gas outlet, and On net gas outlet, pipeline is gone back between sulphur meter and sequencing valve be connected with plate heat exchanger, and in the plate heat exchanger inlet end Equipped with the second sequencing valve;On the net gas outlet, also pass through third sequencing valve and desulfurization between sulphur meter and the first sequencing valve The air inlet duct of device connects, and the liquid tank includes net liquid slot and dreg collecting slot, and pottery is equipped between net liquid slot and dreg collecting slot Porcelain filter plate, dreg collecting slot bottom are equipped with sewage draining exit, and the heat recovery tower includes upper shell, lower shell and separates upper lower shell The demarcation plate come, the demarcation plate is equipped with multiple through-holes, and the conduit extended into lower shell is equipped in each through-hole;It is described Upper shell side is equipped with the gas inlet for entering whole system for flue gas, and upper shell top is cold equipped with being connected with desulfurizer Gas outlet, and cold air outlet is extended through into upper shell and is connected in the middle part of demarcation plate with lower shell;The lower shell side is set Have by pumping the liquid inlet connecting with net liquid barrel road, and lower shell is equipped with the liquidometer for detecting liquid level in cylinder, Lower shell bottom is equipped with the slag-drip opening connecting by valve with dreg collecting slot pipeline;The spiral heat exchange tube core is arranged in lower shell Interior, lower shell is equipped with the heat exchange import being connected respectively with the inlet and outlet of spiral heat exchange tube core and heat exchange outlet, and lower shell Inside it is additionally provided with submergence conduit bottom and spiral heat exchange tube core, the liquid for absorbing granule foreign and flue gas heat in flue gas.
Compared with prior art, the invention has the following advantages:
The present invention has rational design, and structure is simple, easy to operate.Wherein, gas distributor can effective diffusing air current, formed rotation Stream increases gas-liquid contact time, and the gas flow tube outgassing direction on two layers of air flow method layer is on the contrary, further increase gas-liquid Time of contact, to improve desulfurization effect.And horn-like, gas flow tube upper opening is set obliquely for gas flow tube lower end, it is It is flowed up for the ease of air-flow, and prevents the liquid at spray from passing through gas flow tube down, and be set as loudspeaker above flowing water mouth Shape can be flowed by flowing water mouth to second gas distributor for the ease of the liquid accumulated on the first air flow method layer, And prevent most of gas upward by flowing water mouth.
Desulfurizer of the invention, by desulfurizing tower, slanted gas flow pipe clockwise and slanted gas flow pipe counterclockwise and institute Airflow-distribution board angle setting, can significantly submit desulfuration efficiency.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention.
Fig. 2 is heat recovery tower structural schematic diagram of the present invention.
Fig. 3 is spiral heat exchange tube cored structure schematic diagram of the present invention.
Fig. 4 is inventive desulfurization apparatus structure schematic diagram.
Fig. 5 is fairing structural schematic diagram of the present invention.
Fig. 6 for needle slanted gas flow pipe and slanted gas flow pipe counterclockwise and the airflow-distribution board at place at the de- of different angle Sulphur ratio chart.
Wherein, the corresponding title of appended drawing reference are as follows:
1- upper shell, 11- gas inlet, 12- cold air outlet,
2- lower shell, the liquid inlet 21-, 22- liquidometer, 23- slag-drip opening, 24- heat exchange import, 25- heat exchange outlet, 26- Observation panel,
3- demarcation plate, 31- through-hole, 32- conduit, 33- inlet channel, 34- outlet passageway, 35- flow distribution plate, 36-HEPA mistake Strainer,
4- blender, 41- cold air inlet,
5- spraying layer, 51- leakage fluid dram, 52- inlet, 53- flowing water mouth, 54- is counterclockwise slanted gas flow pipe, 55- water outlet,
6- demister, the net gas outlet 61-, 62- first rectify layer, and 63- second rectifies layer, 64- clamping rings, and 65- is fixed Bar, 66- cylindrical conduit, 67- first gas distributor, 68- second gas distributor, 69- slanted gas flow pipe clockwise,
71- dreg collecting slot, 72- net liquid slot, 73- ceramic filter plate, 74- sewage draining exit,
81- plate heat exchanger, 82- thermometer, 83- sulphur meter, the first sequencing valve of 84-, the second sequencing valve of 85-, 86- third Sequencing valve.
Specific embodiment
The invention will be further described with embodiment for explanation with reference to the accompanying drawing, and mode of the invention includes but not only limits In following embodiment.
The purpose of the present embodiment is to provide that a kind of structure is simple, and easy to operate, can purify sulfur-containing smoke gas makes its qualified discharge, And the flue gas purification device of the high desulfurization efficiency of recyclable fume afterheat.
As shown in Figure 1, the flue gas purification device includes heat recovery apparatus, desulfurizer and liquid tank;The recuperation of heat dress It sets and opens one including one for two heat recovery towers, be equipped with spiral heat exchange tube core in each heat recovery tower;The desulfurizer and heat The connection of recyclable device pipeline, the desulfurizer top are equipped with net gas outlet, are successively arranged temperature on the net gas outlet Meter 82, sulphur meter 83 and the first sequencing valve 84, and on net gas outlet, go back pipeline between sulphur meter and sequencing valve and be connected with plate Formula heat exchanger 81, and the second sequencing valve 85 is equipped in the plate heat exchanger inlet end;On the net gas outlet, sulphur meter and It is also connect by third sequencing valve 86 with the air inlet duct of desulfurizer between one sequencing valve.Such setting is to detect warp Whether the net gas after crossing desulfurizer meets preset discharge standard and professional standard, when the net temperature degree measured do not meet it is pre- Calibration is punctual, that is, closing the first sequencing valve and third sequencing valve is discharged gas after further exchanging heat in plate heat exchanger, and Predetermined standard time is not met in net gas sulfur content, then closes the first sequencing valve and the second sequencing valve, fills gas from desulfurization again It sets and is discharged after further desulfurization at cold air inlet, good purification.
As shown in Figure 1, the liquid tank includes net liquid slot 72 and dreg collecting slot 71, and pottery is equipped between net liquid slot and dreg collecting slot Porcelain filter plate 73, dreg collecting slot bottom are equipped with sewage draining exit 74, can effectively realize the recycling and reusing of lye.
As shown in FIG. 1 to 3, the heat recovery tower includes upper shell 1, lower shell 2 and separates upper lower shell Demarcation plate 3, the demarcation plate is equipped with multiple through-holes 31, and the conduit 32 extended into lower shell is equipped in each through-hole;Institute It states 1 side of upper shell and is equipped with the gas inlet 11 for entering whole system for flue gas, be equipped with and desulfurizer phase at the top of upper shell Cold air outlet 12 even, and cold air outlet is extended through into upper shell and is connected in the middle part of demarcation plate with lower shell;The lower cylinder 2 side of body is equipped with the liquid inlet 21 connecting by pump with 72 pipeline of net liquid slot, and lower shell is equipped with for detecting in cylinder The liquidometer 22 of liquid level, lower shell bottom are equipped with the slag-drip opening 23 connecting by valve with 71 pipeline of dreg collecting slot;The spiral is changed Heat tube core is arranged in lower shell, and lower shell is equipped with the heat exchange import 24 being connected respectively with the inlet and outlet of spiral heat exchange tube core 25 are exported with heat exchange, and is additionally provided with submergence conduit bottom and spiral heat exchange tube core in lower shell, for absorbing the particle in flue gas The liquid of impurity and flue gas heat.The heat recovery tower can effective Mist heat recovering, also, heat recovery tower in be arranged lye also Can be preliminary by flue gas granule foreign and sulfur-containing impurities handle, reduce the heavy burdens for subsequent desulfurizer, energy conservation is again Environmental protection.In addition, being all made of between the upper shell of the present embodiment, lower shell and demarcation plate, between demarcation plate and conduit detachable Connection is easily installed disassembly and later period cleaning, especially the spiral heat exchange tube core inside its lower shell, can directly take out or spray water Cleaning, cleaning replacement are very convenient.
The spiral heat exchange tube core is the spiral heat exchange tube coiled sheet by both ends sealing at being internally provided with 33 He of inlet channel Outlet passageway 34, and be spaced from each other between intake tunnel and exhalant canal by flow distribution plate 35;Divide on the spiral heat exchange tube core It She You not be with 25 corresponding inlet and outlet ozzles of heat exchange import 24 and heat exchange outlet.The spiral heat exchange tube cored structure is simple, production Convenient, weld line is shorter than pipe heat exchanger, and less scaling, can be while purifying smoke, as far as possible by the heat of flue gas It is to use, it is energy saving for heating air or water etc.;In addition, spiral heat exchange tube of the present embodiment also on lower shell Core top is provided with cleaning solution entrance and cleaning solution exports, and can wash away spiral heat exchange tube wicking surface when replacing liquid, reach clear Clean effect makes it have good heat exchange efficiency.
The arrival end of the cold air outlet 12 and all conduits 32 is equipped with HEPA filter screen 36, the filter screen respectively as The first layer filtering and the last layer filtering of flue gas, on the one hand can reduce the pressure of gas cleaning object purifying smoke in lower chamber, The replacement for reducing gas cleaning object, on the other hand can further filter the flue gas cold air that will be discharged, make the bulky grain in flue gas Impurity can completely remove, and mitigate the desulfurization pressure of subsequent desulfurizer significantly.
The lower shell 2 is equipped with observation panel 26, and the observation panel top is in spiral heat exchange tube core over top, observation panel Bottom lower section at the top of spiral heat exchange tube core.Whether the liquid level that on the one hand can be checked in time in the separator, which flooded spiral, is changed At the top of heat tube core, flue gas is avoided to be expelled directly out, purification failure pollutes environment, on the other hand can also observe gas cleaning object It is discharged in time by sewage draining exit after heavily contaminated, to replace gas cleaning object, it is ensured that gas cleaning effect.
The through-hole 31 flips outward 90 ° and is connected to through-hole in downward step-like in inside at the top of the conduit 32 On step, and the top surface after conduit overturning is flushed with 3 upper surface of demarcation plate, is connected to it removably on demarcation plate 3, so as to In subsequent replacement or maintenance spiral heat exchange tube core.
Wherein, the fluorine plastic tube that each inlet and outlet pipeline of heat recovery tower and conduit are all made of, fluorine plastic tube have good Corrosion resistance and stability, and non-stick strong, maintenance cost is low, long service life.
As shown in Figure 4 and Figure 5, the desulfurizer includes tower body, and what is from bottom to top set gradually in tower body stir Mix device 4, fairing, spraying layer 5 and demister 6, the tower body side bottom is equipped with to be connect with 12 pipeline of cold air outlet Cold air inlet 41;Net gas outlet 61 is equipped at the top of the tower body, tower body bottom, which is equipped with, to be connect by valve with 71 pipeline of dreg collecting slot Leakage fluid dram 51, tower body side is equipped with the inlet 52 connecting by pump with 72 pipeline of net liquid slot above spraying layer;Rectify dress It sets including the first rectification layer 62 and the second rectification layer 63, and every layer of rectification layer includes matching with tower body, for that will rectify layer Fixed to the intracorporal clamping rings 64 of tower, the solid fixed link 65 of more be arranged in parallel in clamping rings, and be socketed in solid And it can be around the cylindrical conduit 66 of fixed link rotation in fixed pole;It is set between the first rectification layer 62 and the second rectification layer 63 There is first gas distributor 67, is equipped with second gas distributor 68 between the second rectification layer 63 and cold air inlet 41.This is whole Rectification layer in stream device can sufficiently shunt former flue gas, form multiply shunting flue gas and contact with liquid;And it rectifies in layer and is arranged The cylindrical conduit that can be rotated around fixed link, and spacing between adjacent two pipeline 23 is 1cm~10cm, can make pipeline gap Locate flue gas flow rate to improve, gas-liquid two-phase interfacial turbulence is reinforced, and air-film thickness is thinned and improves mass transfer rate coefficient, and rectifies dress It sets top and forms one layer of turbosphere, further improve mass transfer rate coefficient;Cigarette speed increase simultaneously can slow down reduction of speed under drop Degree, thus slurries increased resident time in desulfurizing tower can be made, increase soak time, achievees the purpose that improve desulfuration efficiency.
Several up times of annular in shape and outgassing direction in the direction of the clock are laid on the first gas distributor 67 Needle slanted gas flow pipe 69 is additionally provided with multiple flowing water mouths 53 on first gas distributor, between slanted gas flow pipe 69 clockwise, described Several slanted gas flow pipes counterclockwise of annular in shape and outgassing direction counterclockwise are laid on second gas distributor 68 54, a water outlet 55 is additionally provided on second gas distributor.The gas distributor of setting can effective diffusing air current, formed rotation Stream increases gas-liquid contact time, and the gas flow tube outgassing direction on two layers of air flow method layer is on the contrary, further increase gas-liquid Time of contact, to improve desulfurization effect.Preferably, the slanted gas flow pipe 69 clockwise and slanted gas flow pipe counterclockwise 54 are equal Airflow-distribution board with place is in 20~60 °, and is disposed as below slanted gas flow pipe and slanted gas flow pipe counterclockwise clockwise Upward horn-like of big opening;Downward horn-like of big opening is set as above the flowing water mouth 53.It is furthermore preferred that the up time Needle slanted gas flow pipe 69 and slanted gas flow pipe 54 counterclockwise are in 30~40 ° with the airflow-distribution board at place;Most preferably, described Slanted gas flow pipe 69 clockwise and slanted gas flow pipe 54 counterclockwise are in 35~40 ° with the airflow-distribution board at place.The present embodiment In, the slanted gas flow pipe 69 clockwise and slanted gas flow pipe 54 counterclockwise are about 37.5 ° with the airflow-distribution board at place, warp Test is crossed, this angle can obtain best eddy flow and desulfurization effect, specifically be detailed in Fig. 6, desulfuration efficiency is up to 97.8%.Institute When stating slanted gas flow pipe 69 clockwise and slanted gas flow pipe 54 counterclockwise with the airflow-distribution board at place in 30~40 °, take off Sulphur efficiency is up to 95% or more.The slanted gas flow pipe 69 clockwise and slanted gas flow pipe 54 counterclockwise divide with the air-flow at place When fabric swatch is in 35~40 °, desulfuration efficiency is up to 96% or more.It is appreciated that when the slanted gas flow pipe 69 clockwise and inverse When hour hands slanted gas flow pipe 54 is smaller with the angle of the airflow-distribution board at place, the smaller easy obstruction of one side pipeline and system Standby complex process, another aspect air-flow can directly be beaten on side wall, and eddy flow is not likely to produce.In addition, setting gas flow tube lower end to Upward horn-like of big opening, be flowed up for the ease of air-flow, and prevent the liquid at spray by gas flow tube down, and Flowing water mouth is set as that big opening is horn-like upwards, then is that can pass through stream for the ease of the liquid accumulated on the first air flow method layer The mouth of a river is flowed to the second airflow-distribution board, and prevents most of gas upward by flowing water mouth.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit protection model of the invention It encloses, as long as that in body design thought of the invention and mentally makes has no the change of essential meaning or polishing, is solved The technical issues of it is still consistent with the present invention, should all be included within protection scope of the present invention.

Claims (3)

1. a kind of flue gas purification device of high desulfurization efficiency, which is characterized in that including desulfurizer, the desulfurizer includes tower Body, and the blender (4), fairing, spraying layer (5) and the demister (6) that are from bottom to top set gradually in tower body, it is described Tower body side bottom be equipped with the cold air inlet (41) that connect with cold air outlet (12) pipeline;Net gas is equipped at the top of the tower body to go out Mouth (61), tower body bottom are equipped with leakage fluid dram (51), are equipped with inlet (52) above tower body side, spraying layer;Institute's fairing packet The first rectification layer (62) and the second rectification layer (63) are included, and every layer of rectification layer includes matching with tower body, for that will rectify layer Fixed to the intracorporal clamping rings of tower (64), the solid fixed link (65) of more be arranged in parallel in clamping rings, and socket And it can be around the cylindrical conduit (66) of fixed link rotation in fixed link;First rectification layer (62) and the second rectification layer (63) first gas distributor (67) are equipped between, are equipped with the second gas between second rectification layer (63) and cold air inlet (41) Body distributor (68) is laid with annular in shape and outgassing direction on the first gas distributor (67) in the direction of the clock Several slanted gas flow pipes (69) clockwise are additionally provided with multiple on first gas distributor, between slanted gas flow pipe clockwise (69) Flowing water mouth (53), the second gas distributor (68) if on be laid with annular in shape and outgassing direction counterclockwise Slanted gas flow pipe (54) counterclockwise is done, a water outlet (55), the inclination gas clockwise are additionally provided on second gas distributor Flow tube (69) and slanted gas flow pipe counterclockwise (54) are in 30~40 ° with the airflow-distribution board at place, and slanted gas flow clockwise Horn-like, top is disposed as below pipe and slanted gas flow pipe counterclockwise to be open obliquely;It is set above the flowing water mouth (53) It is set to horn-like;
It further include heat recovery apparatus and liquid tank, the heat recovery apparatus opens one including one for two heat recovery towers, and each heat is returned It receives in tower and is equipped with spiral heat exchange tube core;The desulfurizer is connect with heat recovery apparatus pipeline, is set at the top of the desulfurizer There is net gas outlet, thermometer (82), sulphur meter (83) and the first sequencing valve (84) are successively arranged on the net gas outlet, and Pipeline is gone back on net gas outlet, between sulphur meter and sequencing valve and is connected with plate heat exchanger (81), and in the plate heat exchanger Inlet end is equipped with the second sequencing valve (85);On the net gas outlet, also pass through third journey between sulphur meter and the first sequencing valve Control valve (86) is connect with the air inlet duct of desulfurizer, and the liquid tank includes net liquid slot (72) and dreg collecting slot (71), and net Ceramic filter plate (73) are equipped between liquid bath and dreg collecting slot, dreg collecting slot bottom is equipped with sewage draining exit (74), and the heat recovery tower includes Upper shell (1), lower shell (2) and the demarcation plate (3) for separating upper lower shell, the demarcation plate are equipped with multiple through-holes (31), and the conduit (32) extended into lower shell is equipped in each through-hole;Upper shell (1) side be equipped with for flue gas into Enter the gas inlet (11) of whole system, is equipped with the cold air outlet (12) being connected with desulfurizer at the top of upper shell, and cold air goes out Mouth is extended through into upper shell to be connected in the middle part of demarcation plate with lower shell;Lower shell (2) side is equipped with by pump and only The liquid inlet (21) of liquid bath (72) pipeline connection, and lower shell is equipped with the liquidometer (22) for detecting liquid level in cylinder, Lower shell bottom is equipped with the slag-drip opening (23) connecting by valve with dreg collecting slot (71) pipeline;The spiral heat exchange tube core setting exists In lower shell, lower shell is equipped with the heat exchange import (24) being connected respectively with the inlet and outlet of spiral heat exchange tube core and heat exchange outlet (25), submergence conduit bottom and spiral heat exchange tube core and in lower shell are additionally provided with, for absorbing granule foreign and cigarette in flue gas The liquid of gas heat.
2. the flue gas purification device of high desulfurization efficiency according to claim 1, which is characterized in that the inclination gas clockwise Flow tube (69) and slanted gas flow pipe counterclockwise (54) are in 35~40 ° with the airflow-distribution board at place.
3. the flue gas purification device of high desulfurization efficiency according to claim 1, which is characterized in that the inclination gas clockwise Flow tube (69) and slanted gas flow pipe counterclockwise (54) are in 37.5 ° with the airflow-distribution board at place.
CN201710702338.5A 2017-05-31 2017-05-31 A kind of flue gas purification device of high desulfurization efficiency Active CN107297134B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710702338.5A CN107297134B (en) 2017-05-31 2017-05-31 A kind of flue gas purification device of high desulfurization efficiency
CN201710400708.XA CN107008137B (en) 2017-05-31 2017-05-31 A kind of purification of sulfur-containing smoke gas and heat recovery system

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CN204093296U (en) * 2014-05-23 2015-01-14 含山县朝霞铸造有限公司 A kind of wet flue gas desulfurization tower
CN205965492U (en) * 2016-08-29 2017-02-22 张雷 Desulfurizing tower

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DE3431829A1 (en) * 1984-08-30 1986-03-13 Hans Peter 5308 Rheinbach Murmann Apparatus for the purification, in particular desulphurisation, of flue gases of every type
CN201394416Y (en) * 2008-11-20 2010-02-03 中电投远达环保工程有限公司 Absorbing tower realizing desulfurization by using wet flue gas method
CN204093296U (en) * 2014-05-23 2015-01-14 含山县朝霞铸造有限公司 A kind of wet flue gas desulfurization tower
CN205965492U (en) * 2016-08-29 2017-02-22 张雷 Desulfurizing tower

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