CN106268277A - A kind of desulfurizer and technique - Google Patents

A kind of desulfurizer and technique Download PDF

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Publication number
CN106268277A
CN106268277A CN201610901019.2A CN201610901019A CN106268277A CN 106268277 A CN106268277 A CN 106268277A CN 201610901019 A CN201610901019 A CN 201610901019A CN 106268277 A CN106268277 A CN 106268277A
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CN
China
Prior art keywords
tower body
interior
tower
spraying layer
serosity
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN201610901019.2A
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Chinese (zh)
Inventor
邹洋
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Shanghai Boiler Works Co Ltd
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Shanghai Boiler Works Co Ltd
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Priority to CN201610901019.2A priority Critical patent/CN106268277A/en
Publication of CN106268277A publication Critical patent/CN106268277A/en
Pending legal-status Critical Current

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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
    • B01D53/80Semi-solid phase processes, i.e. by using slurries
    • 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
    • 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
    • B01D53/96Regeneration, reactivation or recycling of reactants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a kind of desulfurizer and technique, this device is made up of outer tower body (1), middle tower body (2), interior tower body (3), top of tower (7), interior spraying layer (6), outer spraying layer (5) and demister (4);Described outer tower body sidewall is connected with smoke inlet, and the top of outer tower body sidewall is formed with top of tower and is tightly connected;Described inter-chamber tower body is positioned between outer tower body and tower body, and height is less than outer tower, open top;Described interior tower body is positioned at inter-chamber tower body portion, and top is formed with tower top and is tightly connected, and bottom is uncovered and is higher than bottom middle tower body, and higher than interior pond (8) Starch Level;If being provided with the outer spraying layer (5) of dried layer and demister (4) between outer tower body and middle tower body, for the thick desulfurization of flue gas;If interior tower body is internally installed has spraying layer and demister in dried layer, for the fine de-sulfur of flue gas.The present invention has that desulfuration efficiency is high, occupation area of equipment is little, the advantage of stable and reliable operation.

Description

A kind of desulfurizer and technique
Technical field
The present invention relates to a kind of desulfurizer and technique, belong to flue gases purification field.
Technical background
Domestic coal-burning boiler uses wet fuel gas desulfurizing technology mostly, is divided by nozzle/packing layer by the desulfurizing agent of alkalescence After Saning, react with flue gas counter current contacting in absorption tower, reach to remove SO in flue gas2Purpose, the big multipotency of desulfuration efficiency Reach 90% even 95%.Along with China's standard limit of smog release is gradually strict and the proposition of current " ultra-clean " discharge theory, coal-fired electricity The requirement of desulfurizer operational efficiency is also improved constantly by factory, particularly the power plant user of burning high sulfur coal, and its desulfuration efficiency needs Reach more than 99%.
Current portions power plant uses double tower Two-way Cycle technology to improve desulfuration efficiency, but this technology exist equipment investment high, The problems such as floor space is big, the flue gas high-efficiency desulfurization how realizing lower cost under conditions of land limited is urgently to solve at present One of problem certainly.
Summary of the invention
The present invention relates to a kind of high effective desulphurization device, described device is by outer tower body, middle tower body, interior tower body, top of tower, interior Spraying layer, outer spraying layer and demister composition;
Described outer tower body sidewall is connected with smoke inlet, and the top of outer tower body sidewall is formed with top of tower and is tightly connected.
Described inter-chamber tower body is positioned between outer tower body and tower body, and height is less than outer tower, open top.
Described interior tower body is positioned at inter-chamber tower body portion, top is formed with tower top and is tightly connected, and bottom is uncovered and is higher than Between bottom tower body.
If being provided with the outer spraying layer of dried layer and demister between outer tower body and middle tower body, for the thick desulfurization of flue gas.
If interior tower body is internally installed has spraying layer and demister in dried layer, for the fine de-sulfur of flue gas.
Use above-mentioned high effective desulphurization device, form mixed liquor after being mixed with interior pond serosity by fresh desulfurization slurry and be delivered to interior Spraying layer, now plasm PH value is higher, to low concentration SO2Assimilation effect strong;
Spray rear slurry falls to interior pond bottom middle tower body, and pond serosity in being formed, interior pond serosity part internal circulation pump is defeated Sending interior spraying layer back to, another part is delivered to outer spraying layer and mixes with outer circulation serosity;Now serosity not yet reacts complete, to cigarette High concentration SO in gas2Assimilation effect is preferable;Spray rear slurry falls to outer pond bottom outer tower body, part outer circulation Transport pump returns outer spraying layer and forms outer circulation serosity, and another part is expelled directly out as waste water.
The present invention relates to a kind of high effective desulphurization device and technique, its operation principle is: flue gas enters from outer tower body side, Under the middle stop of tower body and the drag effect of top spraying layer, flue gas tower body outside is uniform with in the annular region of middle tower body It is distributed and flows up, the desulfurization slurry generation chemical reaction with spraying, complete thick sweetening process;Thick flue gas after desulfurization warp Cross demister and arrive outer top of tower, then be redirected back into interior tower from top, along the gap between middle tower body and interior tower body to dirty Dynamic;Flue gas is changed direction after arriving interior tower bottom under the stop of slurry pool liquid level again, flows up in entering in tower body, and Fine de-sulfur process is completed under the effect of interior spraying layer serosity;After fine de-sulfur, flue gas leaves desulfurizer through demister.
Compared with the prior art, a kind of high effective desulphurization device and the technique of the present invention has the advantage that
(1) by the way of inside and outside tower, twice counter current contacting process of flue gas and desulfurization slurry is defined, with double tower Two-way Cycle skill Art compares floor space and the cost of investment decreasing desulphurization plant;
(2) efficiently utilized by the classification of desulfurization slurry, reduce the operating cost of desulfurizing tower.
Accompanying drawing explanation
Fig. 1 is a kind of high effective desulphurization device of the present invention.
Fig. 2 is the top view of Section A-A in Fig. 1.
Description of reference numerals
The outer tower body of 1-;Tower body in the middle of 2-;Tower body in 3-;4-demister;The outer spraying layer of 5-;Spraying layer in 6-;7-top of tower;8- Interior pond;The outer pond of 9-.
Detailed description of the invention
For making the present invention apparent understandable, 1 adds respectively in terms of serum recycle and flow of flue gas two below in conjunction with the accompanying drawings To describe in detail.
Serum recycle: fresh desulfurization slurry and interior loop slurry are delivered to interior spraying layer, and now plasm PH value is higher, to low Concentration SO2Assimilation effect strong.Spray rear slurry falls to interior pond 8 bottom middle tower body, in part circulating pump is transmitted back to Spraying layer forms interior loop slurry, and another part is delivered to outer spraying layer and mixes with outer circulation serosity.Now serosity not yet reacts Completely, to high concentration SO in flue gas2Assimilation effect is preferable.Spray rear slurry falls to outer pond 9 bottom outer tower body, one Demultiplexing circulating pump is transmitted back to outer spraying layer and forms outer circulation serosity, and another part directly leads out.Interior pond 8 does not connects with outer pond 9.
Flow of flue gas: flue gas enters from outer tower body side, middle tower body stop and above the drag effect of spraying layer Under, flue gas tower body outside is uniformly distributed and flows up, with the desulfurization slurry sprayed in the annular region of middle tower body Chemical reaction occurring, completes thick sweetening process, desulfuration efficiency is not less than 90%;Thick flue gas after desulfurization arrives outer tower through demister Top, interior tower it is redirected back into from top, flow downward along the gap between middle tower body and interior tower body;Flue gas arrives at the bottom of interior tower Again change direction under the stop of slurry pool liquid level behind portion, enter interior tower body and flow up, at the work of interior spraying layer serosity Completing fine de-sulfur process under with, desulfuration efficiency is not less than 90%;After fine de-sulfur, flue gas leaves desulfurizer through demister.
By above-mentioned high effective desulphurization device and serum recycle technique, it is achieved that the desulfurization slurry of high PH absorbs low SO2Concentration Re-absorption height SO after flue gas, serosity PH reduction2The substep sweetening process of concentration flue gas, total desulfuration efficiency is up to more than 99%.

Claims (2)

1. a desulfurizer, it is characterised in that: by outer tower body (1), middle tower body (2), interior tower body (3), top of tower (7), interior Spraying layer (6), outer spraying layer (5) and demister (4) composition;Described outer tower body sidewall is connected with smoke inlet, outer tower body side The top of wall is formed with top of tower and is tightly connected;Described inter-chamber tower body is positioned between outer tower body and tower body, and height is less than outward Tower, open top;Described interior tower body is positioned at inter-chamber tower body portion, and top is formed with tower top and is tightly connected, and bottom is uncovered and high Bottom middle tower body, and higher than interior pond (8) Starch Level;If being provided with the outer spraying layer of dried layer between outer tower body and middle tower body (5) and demister (4), for the thick desulfurization of flue gas;If interior tower body is internally installed has spraying layer and demister in dried layer, for cigarette The fine de-sulfur of gas.
2. use the desulfurizer described in claim 1 to form corresponding technique, it is characterised in that:
Forming mixed liquor after being mixed with interior pond serosity by fresh desulfurization slurry and be delivered to interior spraying layer (6), now plasm PH value is relatively Height, to low concentration SO2Assimilation effect strong;
Spray rear slurry falls to interior pond (8) bottom middle tower body, pond serosity, interior pond serosity part internal circulation pump in being formed Being transmitted back to interior spraying layer (6), another part is delivered to outer spraying layer (5) and mixes with outer circulation serosity;Now serosity not yet reacts Completely, to high concentration SO in flue gas2Assimilation effect is preferable;Spray rear slurry falls to outer pond (9) bottom outer tower body, and one Part outer circulation transport pump returns outer spraying layer and forms outer circulation serosity, and another part is expelled directly out as waste water.
CN201610901019.2A 2016-10-17 2016-10-17 A kind of desulfurizer and technique Pending CN106268277A (en)

Priority Applications (1)

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CN201610901019.2A CN106268277A (en) 2016-10-17 2016-10-17 A kind of desulfurizer and technique

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Application Number Priority Date Filing Date Title
CN201610901019.2A CN106268277A (en) 2016-10-17 2016-10-17 A kind of desulfurizer and technique

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108434965A (en) * 2018-05-29 2018-08-24 舟山嵊泗海光明电器有限公司 Turbine exhaust processing unit
CN113230870A (en) * 2020-12-15 2021-08-10 岑顺彬 Desulfurizing tower dual cycle wet process filtration system for chemical production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101130154A (en) * 2007-08-14 2008-02-27 湖南大学 Pneumatic stirring, injecting, bubbling, desulfurizing and dust removing absorption tower
CN102553430A (en) * 2012-02-23 2012-07-11 中电投远达环保工程有限公司 Bicyclic high-efficiency desulfurization absorption tower and desulfurization system employing tower
RU2496559C1 (en) * 2012-08-10 2013-10-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Plant for trapping vapors of oil and oil products
CN204412060U (en) * 2015-01-05 2015-06-24 中节能六合天融环保科技有限公司 A kind of double fluid is to high efficiency lower resistance desulfurizing tower
CN206199001U (en) * 2016-10-17 2017-05-31 上海锅炉厂有限公司 A kind of desulfurizer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101130154A (en) * 2007-08-14 2008-02-27 湖南大学 Pneumatic stirring, injecting, bubbling, desulfurizing and dust removing absorption tower
CN102553430A (en) * 2012-02-23 2012-07-11 中电投远达环保工程有限公司 Bicyclic high-efficiency desulfurization absorption tower and desulfurization system employing tower
RU2496559C1 (en) * 2012-08-10 2013-10-27 Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" Plant for trapping vapors of oil and oil products
CN204412060U (en) * 2015-01-05 2015-06-24 中节能六合天融环保科技有限公司 A kind of double fluid is to high efficiency lower resistance desulfurizing tower
CN206199001U (en) * 2016-10-17 2017-05-31 上海锅炉厂有限公司 A kind of desulfurizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108434965A (en) * 2018-05-29 2018-08-24 舟山嵊泗海光明电器有限公司 Turbine exhaust processing unit
CN108434965B (en) * 2018-05-29 2020-09-15 舟山嵊泗海光明电器有限公司 Turbine exhaust gas treatment device
CN113230870A (en) * 2020-12-15 2021-08-10 岑顺彬 Desulfurizing tower dual cycle wet process filtration system for chemical production
CN113230870B (en) * 2020-12-15 2022-07-01 山东莱钢节能环保工程有限公司 Desulfurizing tower dual cycle wet process filtration system for chemical production

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Application publication date: 20170104