CN101099918A - Adsorption tower smoke directly ventilating technology - Google Patents

Adsorption tower smoke directly ventilating technology Download PDF

Info

Publication number
CN101099918A
CN101099918A CNA200710078583XA CN200710078583A CN101099918A CN 101099918 A CN101099918 A CN 101099918A CN A200710078583X A CNA200710078583X A CN A200710078583XA CN 200710078583 A CN200710078583 A CN 200710078583A CN 101099918 A CN101099918 A CN 101099918A
Authority
CN
China
Prior art keywords
absorption tower
tower
oxidation pond
flue gas
chimney
Prior art date
Application number
CNA200710078583XA
Other languages
Chinese (zh)
Other versions
CN100486673C (en
Inventor
杜云贵
洪燕
刘艺
李锐
刘清才
罗晓渝
廖帆
余宇
彭期耀
王强
黄锐
刘爽
Original Assignee
中电投远达环保工程有限公司
重庆大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中电投远达环保工程有限公司, 重庆大学 filed Critical 中电投远达环保工程有限公司
Priority to CNB200710078583XA priority Critical patent/CN100486673C/en
Publication of CN101099918A publication Critical patent/CN101099918A/en
Application granted granted Critical
Publication of CN100486673C publication Critical patent/CN100486673C/en

Links

Abstract

The present invention discloses direct absorption tower fume exhausting process, which includes the following steps: 1. setting the absorption tower and one chimney superposed integrally on the absorption tower and communicated to the inner cavity of the absorption tower; 2. preparing limestone slurry; and 3. absorbing SO2 fume in the total desulfurizing rate up to 96 %. The present invention without fume heat exchanger, flue and joint has lowered resistance to fume and low cost.

Description

Adsorption tower smoke directly ventilating technology

Technical field

The invention belongs to the flue gas desulfurization field, specifically, relate to a kind of fume emission technology.

Background technology

Along with the strictness day by day of China's Air Pollution Prevention Law rule, the flue gas in power station boiler desulfurization is imperative, and flue gas desulfurization technique is promotion and application promptly.Present domestic operation and in the desulfurizer of building, wet desulphurization accounts for more than 90%, and the flue gas after the wet desulphurization is mostly by smoke stack emission, chimney is the discharging modes of a kind of high investment, high flow rate, maximum discharge, difficult circulation, poor efficiency, therefore, in wet desulfurization system, select the fume emission mode to take all factors into consideration from aspects such as environmental protection, economy and technology.

Flue gas promotes SO in the flue gas by the cooling of flue gas heat exchange device after the booster fan pressurization 2Absorption, enter the absorption tower through flue then, chimney and absorption tower split design are come out from the upper end on absorption tower through the clean flue gas after the desulfurization of absorption tower, heat of the corrosion of alleviation low temperature saturated flue gas again through the flue gas heat exchange device, discharge from chimney through flue at last chimney.

Its shortcoming is: floor space is big, and some reconstruction unit can't adopt owing to the space is limited; Because chimney is than higher, it is many to build the required raw material of chimney, and will do corresponding anti-corrosion measure, so the chimney cost is very high.

Summary of the invention

The purpose of this invention is to provide a kind of adsorption tower smoke directly ventilating technology.

The object of the present invention is achieved like this:

Step 1, the absorption tower is set, the overlapping chimney in absorption tower upper end, and communicate with the absorption tower inner chamber, and form an integral body, this chimney top is cylinder, the bottom is cone, and this cone larger diameter end is connected and equal diameters with cylindrical absorbent cat head end, and bottom, described absorption tower is provided with the demist layer for oxidation pond, top, this demist layer below is provided with spraying layer, offers into mouth at the absorption tower sidewall between oxidation pond and spraying layer;

Step 2 is made lime stone slurry, and configuration lime stone slurry concentration is 30~40%, and lime stone slurry pH is alkalescence about 8-10, and the temperature of lime stone slurry is a room temperature, then lime stone slurry is delivered to the oxidation pond on absorption tower;

Step 3, SO 2The absorption of flue gas, other booster fan and the circulating pump of being provided with on described absorption tower, wherein booster fan is communicated with the mouth that advances on absorption tower by pipeline, circulating pump connects the spraying layer other end by pipeline one end and stretches in the oxidation pond on absorption tower, after being boosted by booster fan, directly advances in the people absorption tower flue gas, slurries in the absorption tower are delivered to tower top spraying layer by circulating pump from the oxidation pond of bottom, absorption tower, slurries atomize through spraying layer, atomization slurry passes through the absorption tower from top to bottom, with advance the flue gas adverse current that mouth comes in from absorption tower bottom and contact concurrent biochemical reaction, flow to the oxidation pond of bottom, absorption tower behind the generation calcium sulfite, flue gas upwards directly enters atmosphere from chimney along the absorption tower after desulfurizing and purifying is removed water smoke.

The adsorption tower smoke directly ventilating technology that the integrated design that the present invention adopts chimney to build the top, absorption tower in forms reduces flue and bend setting, reduces the flue gas system resistance, reduces crushing, reduces the booster fan energy consumption simultaneously, reduces cost of investment and operating cost expense.Build chimney in the absorption tower top, absorption tower body (about 30 meters high) can be used as the part of chimney, directly builds chimney material and cost such as anticorrosion that chimney just can be saved 30 meters height at the top, absorption tower, reduction desulfurization project cost; This technology can be saved traditional flue gas heat exchange device, reduces huge cost of equipment and has also saved operating cost simultaneously; The integrated design of chimney being built in the top, absorption tower can reduce system's floor space, overcome the reality of land used anxiety, particularly especially practical for some old unit reconstruction projects, because all there is the situation of insufficient space in many old units, also brought convenience simultaneously for technological improvement; The desulfuration efficiency of the adsorption tower smoke directly ventilating technology that the integrated design that the present invention adopts chimney to build the top, absorption tower in forms can be up to 96%.

The present invention compared with prior art has following beneficial effect:

1, reduces flue and bend setting, reduce the flue gas system resistance, reduce crushing, reduce the booster fan energy consumption simultaneously, reduce cost of investment and operating cost expense.

2, save the investment of flue gas heat exchange apparatus, and operating cost.

3, need not to establish in addition flue and connect chimney, reduce settings such as flue connector.

4, the required floor space of whole system is little, has saved the chimney expenditure of construction of 30 meters height simultaneously.

5, desulfuration efficiency height, desulfurization degree can reach more than 96%.

Description of drawings

Fig. 1 is a schematic flow sheet of the present invention.

The specific embodiment

One power plant, exhaust gas volumn is 1,150,000 Nm 3/ h; Import SO 2Content is 980mg/Nm 3The Ca/s ratio is 1.025, and desulfurization degree reaches 96%; The chimney height of building the top, absorption tower in is about 120m.Whole process step is as follows:

Step 1, absorption tower 2 is set, the overlapping chimney 3 in 2 upper ends, absorption tower, and communicate with absorption tower 2 inner chambers, and form an integral body, these chimney 3 tops are cylinder, the bottom is cone, and this cone larger diameter end is connected and equal diameters with cylindrical absorbent tower 2 tops, and 2 bottoms, described absorption tower are that oxidation pond 2b, top are provided with demist layer 2d, this demist layer 2d below is provided with spraying layer 2c, offers into mouth 2a at absorption tower 2 sidewalls that are positioned between oxidation pond 2b and the spraying layer (2c);

Step 2 is made lime stone slurry, and configuration lime stone slurry concentration is 37%, and lime stone slurry pH is alkalescence about 9, and the temperature of lime stone slurry is a room temperature, then lime stone slurry is pumped into the oxidation pond 2b on absorption tower 2;

Step 3, SO 2The absorption of flue gas, at described absorption tower 2 other booster fan 1 and the circulating pumps 4 of being provided with, wherein booster fan 1 is communicated with the mouth 2a that advances on absorption tower 2 by pipeline, circulating pump 4 connects the spraying layer 2c other end by pipeline one end and stretches in the oxidation pond 2b on absorption tower 2, flue gas directly advances in the people absorption tower 2 after being boosted by booster fan 1, slurries in the absorption tower 2 are delivered to tower top spraying layer 2c by the oxidation pond 2b of circulating pump 42 bottoms from the absorption tower, slurries atomize through spraying layer 2c, atomization slurry is from top to bottom by absorption tower 2, with from the absorption tower 2 bottoms advance the flue gas adverse current that mouth 2a comes in and contact concurrent biochemical reaction, generate the oxidation pond 2b that flows to 2 bottoms, absorption tower behind the calcium sulfite, flue gas 2 upwards directly enters atmosphere from chimney 3 along the absorption tower after desulfurizing and purifying is removed water smoke.The whole system desulfurization degree reaches 96%, and the flue gas system resistance is littler, reduces the booster fan energy consumption simultaneously, reduces cost of investment and operating cost expense.

Claims (1)

1, a kind of adsorption tower smoke directly ventilating technology is characterized in that, described adsorption tower smoke directly ventilating technology carries out as follows:
Step 1, absorption tower (2) is set, upper end, absorption tower (2) overlapping chimney (3), and communicate with absorption tower (2) inner chamber, and form an integral body, this chimney (3) top is cylinder, the bottom is cone, this cone larger diameter end is connected and equal diameters with cylindrical absorbent tower (2) top, bottom, described absorption tower (2) is provided with demist layer (2d) for oxidation pond (2b), top, this demist layer (2d) below is provided with spraying layer (2c), offers into mouth (2a) at absorption tower (2) sidewall that is positioned between oxidation pond (2b) and the spraying layer (2c);
Step 2 is made lime stone slurry, and configuration lime stone slurry concentration is 30~40%, and lime stone slurry pH is alkalescence about 8-10, and the temperature of lime stone slurry is a room temperature, then lime stone slurry is delivered to the oxidation pond (2b) of absorption tower (2);
Step 3, SO 2The absorption of flue gas, at described absorption tower (2) other booster fan (1) and the circulating pump (4) of being provided with, wherein booster fan (1) is communicated with the mouth (2a) that advances of absorption tower (2) by pipeline, and circulating pump (4) connects spraying layer (2c) other end by pipeline one end and stretches in the oxidation pond (2b) of absorption tower (2); Flue gas directly advances in the people absorption tower (2) after being boosted by booster fan (1), slurries in the absorption tower (2) are delivered to tower top spraying layer (2c) by the oxidation pond (2b) of circulating pump (4) (2) bottom from the absorption tower, slurries atomize through spraying layer (2c), atomization slurry is from top to bottom by absorption tower (2), with from the absorption tower (2) bottom advance the flue gas adverse current that mouth (2a) comes in and contact concurrent biochemical reaction, flow to the oxidation pond (2b) of bottom, absorption tower (2) behind the generation calcium sulfite, (2) upwards directly enter atmosphere from chimney (3) to flue gas along the absorption tower after desulfurizing and purifying is removed water smoke.
CNB200710078583XA 2007-06-06 2007-06-06 Adsorption tower smoke directly ventilating technology CN100486673C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200710078583XA CN100486673C (en) 2007-06-06 2007-06-06 Adsorption tower smoke directly ventilating technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200710078583XA CN100486673C (en) 2007-06-06 2007-06-06 Adsorption tower smoke directly ventilating technology

Publications (2)

Publication Number Publication Date
CN101099918A true CN101099918A (en) 2008-01-09
CN100486673C CN100486673C (en) 2009-05-13

Family

ID=39034462

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200710078583XA CN100486673C (en) 2007-06-06 2007-06-06 Adsorption tower smoke directly ventilating technology

Country Status (1)

Country Link
CN (1) CN100486673C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101732950A (en) * 2008-11-20 2010-06-16 张建云 Waste gas recovering device
CN101601963B (en) * 2009-06-02 2012-07-04 张蕊 Smoke purification system and method thereof
CN103721545A (en) * 2013-12-30 2014-04-16 陕西大唐新能电力设计有限公司 Boiler smoke processing method
CN104353350A (en) * 2014-12-02 2015-02-18 成都华西堂投资有限公司 Smoke purification technology implemented based on adsorbent pretreatment
CN104383797A (en) * 2014-12-02 2015-03-04 成都华西堂投资有限公司 Dry-wet purifying recovery treatment process of smoke gas
CN104399368A (en) * 2014-12-02 2015-03-11 成都华西堂投资有限公司 Flue gas injection conveying technology for achieving absorbent pretreatment in flue gas purification method
CN105944544A (en) * 2016-07-13 2016-09-21 北京华福工程有限公司 Petrochemical acidic tail gas treatment system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1220545C (en) * 2002-10-22 2005-09-28 熊天渝 Washing system for adding magnesia lime/lime rock for removing SO2 and producing gypsum simultaneously
CN2761251Y (en) * 2005-01-14 2006-03-01 浙江大学 Smoke desulfurization device using underflow bialkali method
CN2813074Y (en) * 2005-08-16 2006-09-06 孙克勤 Gypsum slurry dewatering device in wet-process flue gas desulfurizing system
CN2894808Y (en) * 2006-03-30 2007-05-02 国电科技环保集团有限公司 Dual circulation circuit limestone/lime-gypsum wet flue gas desulfurizing apparatus
CN100435910C (en) * 2006-04-10 2008-11-26 广州市天赐三和环保工程有限公司 Fume desulfurizing process employing multiple circulation and stable double alkali method and apparatus
CN100503009C (en) * 2006-08-18 2009-06-24 浙江天蓝脱硫除尘有限公司 Fume desulfurizing process by enhancement lime method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101732950A (en) * 2008-11-20 2010-06-16 张建云 Waste gas recovering device
CN101601963B (en) * 2009-06-02 2012-07-04 张蕊 Smoke purification system and method thereof
CN103721545A (en) * 2013-12-30 2014-04-16 陕西大唐新能电力设计有限公司 Boiler smoke processing method
CN104353350A (en) * 2014-12-02 2015-02-18 成都华西堂投资有限公司 Smoke purification technology implemented based on adsorbent pretreatment
CN104383797A (en) * 2014-12-02 2015-03-04 成都华西堂投资有限公司 Dry-wet purifying recovery treatment process of smoke gas
CN104399368A (en) * 2014-12-02 2015-03-11 成都华西堂投资有限公司 Flue gas injection conveying technology for achieving absorbent pretreatment in flue gas purification method
CN104353350B (en) * 2014-12-02 2016-08-24 成都华西堂投资有限公司 The flue gas purifying technique realized based on absorbent pretreatment
CN104399368B (en) * 2014-12-02 2016-09-14 成都华西堂投资有限公司 Flue gas purifying method realizes the flue gas injection conveying technique of absorbent pretreatment
CN105944544A (en) * 2016-07-13 2016-09-21 北京华福工程有限公司 Petrochemical acidic tail gas treatment system

Also Published As

Publication number Publication date
CN100486673C (en) 2009-05-13

Similar Documents

Publication Publication Date Title
CN203507793U (en) Device for simultaneously removing sulfur dioxide and nitrogen oxide from coke oven flue gas
CN200998639Y (en) Concentrated crystallization and absorbed oxidation combined type ammonia process desulfuration tower
CN101417826B (en) Method and system for processing desulphurization waste water
JP2016538989A (en) Semi-dry simultaneous desulfurization / denitration / demercury equipment and method using circulating fluidized bed
CN203777922U (en) Wet-process flue gas oxidation and denitration tower
CN203620505U (en) Wet-type electric precipitation desulfuration integrated device
CN201333374Y (en) Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower
CN100417431C (en) Combined liquid phase catalytic oxidizing and microbial method for simultaneously removing SO2 and nitrogen oxide in smoke
CN203437036U (en) Sintering fume desulfurization and denitrification device
CN206881480U (en) A kind of sulphur-containing exhaust gas processing unit
CN201423237Y (en) Ammonia bubble crystallized flue gas desulfurizing device
CN204786491U (en) Boiler smoke waste -heat application system
CN202893175U (en) Flue gas desulfurization and denitrification integrated device of sintering machine
CN107120714A (en) A kind of thermal power plant boiler fume afterheat is used for the whole yearization comprehensive utilization energy conserving system of central heating or heating boiler feed water
CN202410505U (en) Desulfurization, denitration and demercuration integral device
CN205579595U (en) Processing apparatus is synthesized to efficient waste gas
CN103657367B (en) The desulfurization of a kind of list tower calcium method turns device and the technique of the double-tower type ammonia process of desulfurization
CN107551813B (en) Ship desulfurization and denitrification integrated process and device
CN203336624U (en) Flue gas moisture recovery system
CN103146866B (en) Direct reduction process for sponge iron production implemented by using non-catalytic conversion of CH4
CN204522719U (en) Flue gas processing equipment of boiler
CN104209107B (en) A kind of high-efficiency desulfurization activated coke Analytic Tower and analytic method
CN202823151U (en) Multistage spray efficient wet process of flue gas desulfurization and synergistic mercury removal integrated device
CN202460474U (en) Integral desulfurization and denitration complete device by catalytic reduction ammonia method for small and medium boilers
CN104235864A (en) Flue gas moisture recovery system and method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant