CN107243232A - A kind of wet desulphurization and the train and its processing method of wet electrical dust precipitator - Google Patents

A kind of wet desulphurization and the train and its processing method of wet electrical dust precipitator Download PDF

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Publication number
CN107243232A
CN107243232A CN201710680148.8A CN201710680148A CN107243232A CN 107243232 A CN107243232 A CN 107243232A CN 201710680148 A CN201710680148 A CN 201710680148A CN 107243232 A CN107243232 A CN 107243232A
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CN
China
Prior art keywords
wet
electrical dust
dust precipitator
tower
wet electrical
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CN201710680148.8A
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Chinese (zh)
Inventor
杨玮
魏绍青
郝美
郭富德
王民武
任杰
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晋能长治热电有限公司
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Priority to CN201710680148.8A priority Critical patent/CN107243232A/en
Publication of CN107243232A publication Critical patent/CN107243232A/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
    • B01D53/507Sulfur oxides by treating the gases with other liquids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • 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
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The invention discloses a kind of wet desulphurization and the train and its processing method of wet electrical dust precipitator.The system includes the wet desulphurization Tower System and wet electrical dust precipitator system of series connection, and the wet desulphurization Tower System includes wet desulfuration tower and desulfurizing tower circulating pump, and the wet electrical dust precipitator system includes wet electrical dust precipitator and buck delivery pump;The exhanst gas outlet of the wet desulphurization top of tower is connected with the smoke inlet of wet electrical dust precipitator, the inlet that the ash bucket of the wet electrical dust precipitator exports successively with slurry pool in buck delivery pump and wet desulfuration tower is connected, and the liquid outlet of slurry pool is connected through desulfurizing tower circulating pump with the liquid inlet of demisting layer and spraying layer in the wet desulfuration tower.The present invention is not provided with wet-esp slurry circulating pump, settling tank and alkali lye water tank, cancels buck soda neutralization procedure, solves that said system water consumption is big, alkali consumption is big, introduces soda, the problems such as operating cost is high.

Description

A kind of wet desulphurization and the train and its processing method of wet electrical dust precipitator
Technical field
Removed the present invention relates to wet-esp and multi-pollutant removing technology, more particularly to a kind of wet desulphurization with wet type electricity The train of dirt device, belongs to environmental technology field.
Background technology
Wet electrical dust precipitator is not influenceed by particulate matter ratio resistance, to PM2.5, SO3Arresting efficiency with simple substance Hg is high, turns into The preferred high-efficiency dust remover of wet-method desulfurized fume purification, is more and more applied to after coal-fired power station boiler smoke-gas wet desulfurization The deep purifying of flue gas and steel industry blast furnace gas etc..
Existing metal polar plate horizontal wet electrical dust precipitator is run by the way of persistently spraying, and is using water wisely, from pole plate The buck flowed down introduces sodium ion by being used in NaOH with Posterior circle in the technique, circulating water flow holds through positive plate sodium salt Easily crystallization, causes fouling, and bring difficulty for subsequent wastewater treatment.
More economized on water in order that wet electrical dust precipitator is used to reduce operating cost, people have carried out some trials, For example it is combined with wet desulphurization, but the defect of currently existing scheme all various degrees.
CN 102716639A disclose a kind of high-efficient wet-type electric precipitation desulphurization system and technique, the demister in desulfurizing tower Top is additionally arranged wet electrical dust precipitator, and water accumulating disc is set up between demister and wet electrical dust precipitator, and water accumulating disc collects wet type electricity Recycled after the flushing water of deduster, wet electrical dust precipitator flushing water does not enter in the neutralization oxidation pond of desulfurizing tower, should System is not combined the water system of wet desulfuration tower and wet electrical dust precipitator, and water consumption is not reduced.
CN 103318981A disclose a kind of wet electrical dust precipitator waste water zero discharge device and its method of wastewater treatment, will Wet electrical dust precipitator waste water is injected in the higher flue of flue-gas temperature, is not provided with alkali lye neutralized system, but the system does not have equally There is the water system by wet desulfuration tower and wet electrical dust precipitator to be combined, the water consumption of wet desulfuration tower and wet electrical dust precipitator Do not reduce, and waste water penetrating flue is needed to use high pressure nozzle and compressed air, artificially improve overall exhaust gas volumn and oxygen-containing Amount, the conversion to follow-up outlet pollutant concentration is unfavorable.
CN 104100986A disclose a kind of wet electrical dust precipitator and the united water system of wet desulphurization, technique water tank position Between desulfurizing tower and wet electrical dust precipitator, it is combined water system and is mainly reflected in:Overall process water tank simultaneously connect desulfurizing tower and Wet electrical dust precipitator, the bed mud of wet electrical dust precipitator is transported to the gypsum processing apparatus of wet desulphurization;This method passes through overall process Water tank and settling tank join together wet electrical dust precipitator and wet desulfuration tower, but not complete series connection, and wet type is electric Overall process water tank is sent in the draining of deduster back to, can pollute process water, and needs to increase the connected mortar discharge of overall process water tank Pipe and excavationg pump, total system are not accomplished most to simplify.
Therefore, a kind of real system that wet electrical dust precipitator and wet desulfuration tower are joined together is developed, enables solution The problem of certainly existing wet electrical dust precipitator water consumption, big alkali consumption and high operating cost, there is great reality for this area Meaning.
The content of the invention
For water consumption present in existing wet electrical dust precipitator and wet desulphurization association system, alkali consumption is big and runs into The problem of this is high, it is described the invention provides a kind of wet desulphurization and the train and its processing method of wet electrical dust precipitator Train cancels the circulated sprinkling step of wet-esp by the way that the water circulation of wet electrical dust precipitator and wet desulfuration tower is interlocked Rapid and buck soda neutralization procedure, and then make that the system water consumption is small, without using alkali, operating cost is cheap.
For up to above-mentioned purpose, the present invention uses following technical scheme:
In a first aspect, the invention provides a kind of wet desulphurization and the train of wet electrical dust precipitator, the system bag The wet desulphurization Tower System and wet electrical dust precipitator system of series connection are included, the wet desulphurization Tower System includes wet desulfuration tower and de- Sulphur tower circulating pump, the wet electrical dust precipitator system includes wet electrical dust precipitator and buck delivery pump;In the wet desulfuration tower Demisting layer, spraying layer and slurry pool are from top to bottom set gradually, wet desulfuration tower is located at the tower wall between spraying layer and slurry pool Smoke inlet is provided with, wet desulphurization top of tower is provided with exhanst gas outlet;The wet electrical dust precipitator internal upper part is provided with nozzle, described Bottom is provided with ash bucket in wet electrical dust precipitator;The exhanst gas outlet of the wet desulphurization top of tower and the flue gas of wet electrical dust precipitator enter Mouth is connected, and the ash bucket of the wet electrical dust precipitator exports inlet successively with slurry pool in buck delivery pump and wet desulfuration tower It is connected, liquid inlet phase of the liquid outlet of slurry pool through desulfurizing tower circulating pump with demisting layer and spraying layer in the wet desulfuration tower Even, the external technique water tank of nozzle of the wet electrical dust precipitator.
In the present invention, in the system in wet desulphurization Tower System and wet electrical dust precipitator Cascade System, technique water tank Water enters wet electrical dust precipitator by the nozzle of wet electrical dust precipitator, enters ash bucket after trap particulate matter in wet electrical dust precipitator In, the water in ash bucket enters through buck delivery pump in the slurry pool of wet desulfuration tower, is settled in slurry pool, on slurry pool The clear water in portion is pumped into demisting layer and spraying layer through desulfurizing tower circulation and carries out demisting and spray desulfurization operations, i.e. wet desulfuration tower System carries out desulfurization defogging operation by the way of circulated sprinkling.
In the present invention, the external water source of the nozzle of the wet electrical dust precipitator is not limited in technique water tank, and other can be with The system and device for acting on water source are equally applicable.
Below as currently preferred technical scheme, but the limitation of the technical scheme provided not as the present invention, pass through Following technical scheme, can preferably reach and realize the technical purpose and beneficial effect of the present invention.
Wet-esp slurries are not provided with as currently preferred technical scheme, in the wet electrical dust precipitator system to follow Ring pump, settling tank and alkali lye water tank.
In the present invention, wet-esp slurry circulating pump, i.e. wet type electricity are no longer set in the wet electrical dust precipitator system Only has technique Water spray in deduster, the water that generation is sprayed no longer by the way of circulated sprinkling, in wet electrical dust precipitator is direct It is pumped into wet desulfuration tower and is utilized by buck conveying.
In the present invention, no longer set in the wet electrical dust precipitator system and production is sprayed in settling tank, wet electrical dust precipitator Raw water is directly entered the slurry pool of wet desulfuration tower.
In the present invention, alkali lye water tank is no longer set in the wet electrical dust precipitator system, that is, cancels the soda of dedusting waste liquid N-process.
Second aspect, the present invention provides the processing method of above-mentioned train, the processing method bag of described train Include following steps:
(a) liquid in technique water tank is pumped into the slurries of wet desulfuration tower by wet electrical dust precipitator and buck conveying Chi Zhong;
(b) liquid in slurry pool is sent into by demisting layer and spraying layer by desulfurizing tower circulating pump;
(c) pending flue gas is passed through in wet desulfuration tower and carried out after desulfurization demisting, is removed into wet electrical dust precipitator Discharged after dirt.
As currently preferred technical scheme, the liquid in technique water tank is passed through into wet electrical dust precipitator in step (a) It is pumped into buck conveying in the slurry pool of wet desulfuration tower, after height needed for the liquid into slurry pool reaches, by process water Fluid flow in case is turned down.
In the present invention, the water in technique water tank is first pumped into wet desulfuration tower by wet electrical dust precipitator and buck conveying Slurry pool in, the water in slurry pool is reached required height;The desulfurization and spray of flue gas are directly carried out using the water in slurry pool Drench.
In the present invention, the wet desulphurization Tower System and wet electrical dust precipitator system are linkage regulation in processing procedure , i.e., original state when, process water is entered with larger flow Fast Filling in the slurry pool of wet desulfuration tower, certain altitude to be achieved Afterwards, then by the flow of process water turn down to normal usage, carry out lasting technological operation.The desulfurization demisting and wet method of whole flue gas In dust removal process, technique water-carrying capacity keeps stable.
As currently preferred technical scheme, the liquid produced in step (c) in wet electrical dust precipitator returns to wet method and taken off In the slurry pool of sulphur tower.
Flue gas wet desulfuration tower will be returned to due to the condensed water that temperature is reduced and is produced in the wet electrical dust precipitator In, water in whole system is kept balance, thus need not directly supplement in wet desulfuration tower and use water.
Compared with prior art, the beneficial effects of the present invention are:
(1) in the present invention, wet desulphurization is together in series with wet electrical dust precipitator, train cooperation is formed, will Water in technique water tank is used for wet-esp and flue gas desulfurization successively, no longer sets wet-esp slurry circulating pump, precipitation Water tank and alkali lye water tank, reduce the water consumption of whole system;
(2) present invention need not carry out the neutralisation treatment of buck, reduce alkali consumption, and will not introduce soda;
(3) in the present invention, the water after processing does not return again to process water case, and the water in technique water tank will not be polluted, Reduce the operating cost of whole system;
(4) present invention cancels wet-esp circulated sprinkling step, further solves wet electrical dust precipitator isolated operation The problem of water consumption is big, operating cost is high;
(5) in the present invention, wet desulphurization is together in series with wet electrical dust precipitator, in reduction water consumption and alkali charge, subtracted While few operating cost, wet desulfuration tower and the good desulfurization of wet electrical dust precipitator and dust removing effects are maintained.
Brief description of the drawings
Fig. 1 is that the structure of the train of a kind of wet desulphurization described in the embodiment of the present invention 1 and wet electrical dust precipitator is shown It is intended to;
Wherein 1- techniques water tank, 2- wet electrical dust precipitators, 3- nozzles, 4- demistings layer, 5- buck delivery pumps, 6- desulfurizing towers are followed Ring pump, 7- wet desulfuration towers, 8- spraying layers, 9- slurry pools.
Embodiment
For the present invention is better described, technical scheme is readily appreciated, below to the present invention further specifically It is bright.But following embodiments is only the simple example of the present invention, the scope of the present invention is not represented or limits, this Invention protection domain is defined by claims.
Specific embodiment of the invention mode part provides the train of a kind of wet desulphurization and wet electrical dust precipitator, institute Stating wet desulphurization Tower System includes wet desulfuration tower 7 and desulfurizing tower circulating pump 6, and the wet electrical dust precipitator system includes wet type electricity Deduster 2 and buck delivery pump 5;Demisting layer 4, spraying layer 8 and slurry pool are from top to bottom set gradually in the wet desulfuration tower 7 9, the tower wall that wet desulfuration tower 7 is located between spraying layer 8 and slurry pool 9 is provided with smoke inlet, and the top of wet desulfuration tower 7 is provided with Exhanst gas outlet;The internal upper part of wet electrical dust precipitator 2 is provided with bottom in nozzle 3, the wet electrical dust precipitator 2 and is provided with ash bucket;Institute The exhanst gas outlet for stating the top of wet desulfuration tower 7 is connected with the smoke inlet of wet electrical dust precipitator 2, the wet electrical dust precipitator 2 Inlet of the ash bucket outlet successively with slurry pool 9 in buck delivery pump 5 and wet desulfuration tower 7 is connected, in the wet desulfuration tower 7 The liquid outlet of slurry pool 9 is connected through desulfurizing tower circulating pump 6 with the liquid inlet of demisting layer 4 and spraying layer 8, the wet-esp The external technique water tank 1 of nozzle 3 of device 2.
The processing method of described train comprises the following steps:
(a) liquid in technique water tank 1 is sent into wet desulfuration tower 7 by wet electrical dust precipitator 2 and buck delivery pump 5 In slurry pool 9;
(b) liquid in slurry pool 9 is sent into by demisting layer 4 and spraying layer 8 by desulfurizing tower circulating pump 6;
(c) pending flue gas is passed through in wet desulfuration tower 7 and carried out after desulfurization demisting, is carried out into wet electrical dust precipitator 2 Discharged after dedusting.
Wherein, the liquid in technique water tank 1 is sent into by wet electrical dust precipitator 2 and buck delivery pump 5 in step (a) wet In the slurry pool 9 of method desulfurizing tower 7, after height needed for the liquid into slurry pool 9 reaches, by the fluid flow in technique water tank 1 Turn down;
The liquid produced in step (c) in wet electrical dust precipitator 2 is returned in the slurry pool 9 of wet desulfuration tower 7.
It is below present invention typical case but non-limiting example:
Embodiment 1:
Present embodiments provide the train and its processing method of a kind of wet desulphurization and wet electrical dust precipitator, such as Fig. 1 Shown, the wet desulphurization Tower System includes wet desulfuration tower 7 and desulfurizing tower circulating pump 6, the wet electrical dust precipitator system bag Include wet electrical dust precipitator 2 and buck delivery pump 5;Demisting layer 4, spraying layer 8 are from top to bottom set gradually in the wet desulfuration tower 7 With slurry pool 9, the tower wall that wet desulfuration tower 7 is located between spraying layer 8 and slurry pool 9 is provided with smoke inlet, wet desulfuration tower 7 Top is provided with exhanst gas outlet;The internal upper part of wet electrical dust precipitator 2 is provided with bottom in nozzle 3, the wet electrical dust precipitator 2 and is provided with Ash bucket;The exhanst gas outlet at the top of wet desulfuration tower 7 is connected with the smoke inlet of wet electrical dust precipitator 2, and the wet type electricity is removed The inlet that the ash bucket of dirt device 2 exports successively with slurry pool 9 in buck delivery pump 5 and wet desulfuration tower 7 is connected, and the wet method takes off The liquid outlet of slurry pool 9 is connected through desulfurizing tower circulating pump 6 with the liquid inlet of demisting layer 4 and spraying layer 8 in sulphur tower 7, described wet The external technique water tank 1 of nozzle 3 of formula electric cleaner 2.
The processing method of described train comprises the following steps:
The processing method of described train comprises the following steps:
(a) liquid in technique water tank 1 is sent into wet desulfuration tower 7 by wet electrical dust precipitator 2 and buck delivery pump 5 In slurry pool 9;
(b) liquid in slurry pool 9 is sent into by demisting layer 4 and spraying layer 8 by desulfurizing tower circulating pump 6;
(c) pending flue gas is passed through in wet desulfuration tower 7 and carried out after desulfurization demisting, is carried out into wet electrical dust precipitator 2 Discharged after dedusting.
Wherein, the liquid in technique water tank 1 is sent into by wet electrical dust precipitator 2 and buck delivery pump 5 in step (a) wet In the slurry pool 9 of method desulfurizing tower 7, after height needed for the liquid into slurry pool 9 reaches, by the fluid flow in technique water tank 1 Turn down;
The liquid produced in step (c) in wet electrical dust precipitator 2 is returned in the slurry pool 9 of wet desulfuration tower 7.
The data of flue gas of the present embodiment processing are:The inlet flue gas amount 1000000Nm of wet desulfuration tower 73/ h, entrance SO2It is dense Spend 6000mg/Nm3, the entrance particle concentration 35.5mg/Nm of wet electrical dust precipitator 23
System operating condition is:Wet-esp technique Water spray consumption 27t/h, flue gas condensing water 10t/h, wet method takes off The water consumption 37t/h of sulphur tower 7, the actual water consumption of system is 27t/h.
The result after processing flue gas is according to the method described above:Wet electrical dust precipitator exports SO2Concentration 32.1mg/Nm3, particle Thing concentration 3.8mg/Nm3
Embodiment 2:
Present embodiments provide the train and its processing method of a kind of wet desulphurization and wet electrical dust precipitator, the string Contact system and its processing method are with reference to embodiment 1, and difference is:The inlet flue gas SO of wet desulfuration tower 72Concentration 5000mg/Nm3, it is wet The entrance particle concentration 30mg/Nm of formula electric cleaner 23, wet-esp technique Water spray consumption 24t/h, flue gas condensing water 9t/h, the water consumption 33t/h of wet desulfuration tower 7.The actual water consumption of system is 24t/h.
The result after processing flue gas is according to the method described above:Wet electrical dust precipitator 2 exports SO2Concentration 30.6mg/Nm3, particle Thing concentration 4.5mg/Nm3
Embodiment 3:
Present embodiments provide the train and its processing method of a kind of wet desulphurization and wet electrical dust precipitator, the string Contact system and its processing method are with reference to embodiment 1, and difference is:The inlet flue gas SO of wet desulfuration tower 72Concentration 3800mg/Nm3, it is wet The entrance particle concentration 26mg/Nm of formula electric cleaner 23, wet-esp technique Water spray consumption 21t/h, flue gas condensing water 7t/h, the water consumption of wet desulfuration tower 7 is 28t/h.The actual water consumption of system is 21t/h.
The result after processing flue gas is according to the method described above:Wet electrical dust precipitator 2 exports SO2Concentration 30.6mg/Nm3, particle Thing concentration 2.3mg/Nm3
Comparative example 1:
The system and specific processing method that this comparative example is used refer to embodiment in CN 102716639A.
The data of flue gas of this comparative example processing are:Wet desulfuration tower inlet flue gas amount 1000000Nm3/ h, entrance SO2It is dense Spend 6000mg/Nm3, wet electrical dust precipitator entrance particle concentration 35mg/Nm3.The actual water consumption of the system is 38t/h.
The result after processing flue gas is according to the method described above:Wet electrical dust precipitator exports SO2Concentration 34mg/Nm3, particulate matter Concentration 4.2mg/Nm3
Comparative example 2:
The system and specific processing method that this comparative example is used refer to embodiment 1 in CN 103318981A.
The data of flue gas of this comparative example processing are:Wet desulfuration tower inlet flue gas amount 1000000Nm3/ h, entrance SO2It is dense Spend 5000mg/Nm3, wet electrical dust precipitator entrance particle concentration 30mg/Nm3.The actual water consumption of the system is 34t/h.
The result after processing flue gas is according to the method described above:Wet electrical dust precipitator exports SO2Concentration 31mg/Nm3, particulate matter Concentration 6.1mg/Nm3
Comparative example 3:
The system and specific processing method that this comparative example is used refer to embodiment 1 in CN 104100986A.
The data of flue gas of this comparative example processing are:Wet desulfuration tower inlet flue gas amount 1000000Nm3/ h, entrance SO2It is dense Spend 3800mg/Nm3, wet electrical dust precipitator entrance particle concentration 26mg/Nm3.The actual water consumption of the system is 29t/h.
The result after processing flue gas is according to the method described above:Wet electrical dust precipitator exports SO2Concentration 31mg/Nm3, particulate matter Concentration 3.9mg/Nm3
Summary embodiment and comparative example can be seen that embodiment and use wet desulphurization of the present invention and wet type electricity The train of deduster, is not provided with wet-esp slurry circulating pump, settling tank and alkali lye water tank, and use institute of the present invention The processing method stated handles flue gas, while desulfurization and dedusting effect is ensured, significantly reduces water consumption and alkali charge, saves Running cost.Comparative example uses the train of wet desulphurization of the present invention and wet electrical dust precipitator and corresponding Flue gas processing method, thus water consumption and alkali charge all compared with embodiment for height, this causes the method running cost of comparative example more It is high, it is impossible to the reduction water consumption and alkali charge of the present invention to be reached, so that cost-effective effect.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment, But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, do not mean that the present invention has to rely on above-mentioned detailed Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention, Selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and being open.

Claims (5)

1. a kind of wet desulphurization and the train of wet electrical dust precipitator, it is characterised in that the system includes the wet method of series connection Desulfurization Tower System and wet electrical dust precipitator system, the wet desulphurization Tower System includes wet desulfuration tower (7) and desulfurizing tower is circulated Pump (6), the wet electrical dust precipitator system includes wet electrical dust precipitator (2) and buck delivery pump (5);The wet desulfuration tower (7) demisting layer (4), spraying layer (8) and slurry pool (9) are from top to bottom set gradually in, wet desulfuration tower (7) is located at spraying layer (8) tower wall between slurry pool (9), which is provided with the top of smoke inlet, wet desulfuration tower (7), is provided with exhanst gas outlet;The wet type Electric cleaner (2) internal upper part is provided with nozzle (3), and the interior bottom of the wet electrical dust precipitator (2) is provided with ash bucket;The wet desulfuration tower (7) exhanst gas outlet at the top of is connected with the smoke inlet of wet electrical dust precipitator (2), and the ash bucket of the wet electrical dust precipitator (2) goes out Inlet of the mouth successively with slurry pool (9) in buck delivery pump (5) and wet desulfuration tower (7) is connected, the wet desulfuration tower (7) The liquid outlet of middle slurry pool (9) is connected through desulfurizing tower circulating pump (6) with the liquid inlet of demisting layer (4) and spraying layer (8), described The external technique water tank (1) of nozzle (3) of wet electrical dust precipitator (2).
2. train according to claim 1, it is characterised in that be not provided with wet type in the wet electrical dust precipitator system Electric precipitation slurry circulating pump, settling tank and alkali lye water tank.
3. the processing method of train according to claim 1 or 2, it is characterised in that methods described includes following step Suddenly:
(a) liquid in technique water tank (1) is sent into wet desulfuration tower by wet electrical dust precipitator (2) and buck delivery pump (5) (7) in slurry pool (9);
(b) liquid in slurry pool (9) is sent into by demisting layer (4) and spraying layer (8) by desulfurizing tower circulating pump (6);
(c) pending flue gas is passed through in wet desulfuration tower (7) and carried out after desulfurization demisting, is carried out into wet electrical dust precipitator (2) Discharged after dedusting.
4. processing method according to claim 3, it is characterised in that lead to the liquid in technique water tank (1) in step (a) In the slurry pool (9) for crossing wet electrical dust precipitator (2) and buck delivery pump (5) feeding wet desulfuration tower (7), into slurry pool (9) Liquid reach needed for after height, the fluid flow in technique water tank (1) is turned down.
5. the processing method according to claim 3 or 4, it is characterised in that produced in step (c) in wet electrical dust precipitator (2) Raw liquid is returned in the slurry pool (9) of wet desulfuration tower (7).
CN201710680148.8A 2017-08-10 2017-08-10 A kind of wet desulphurization and the train and its processing method of wet electrical dust precipitator CN107243232A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102631821A (en) * 2012-05-05 2012-08-15 山东大学 Semidry-wet method cooperation desulfurization equipment and method
CN104437068A (en) * 2014-11-11 2015-03-25 南京中电环保科技有限公司 Efficient wet desulfurization dust removal system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102631821A (en) * 2012-05-05 2012-08-15 山东大学 Semidry-wet method cooperation desulfurization equipment and method
CN104437068A (en) * 2014-11-11 2015-03-25 南京中电环保科技有限公司 Efficient wet desulfurization dust removal system and method

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