CN102350172A - Purification unit and purification tower for sintering smoke of efficient crossflow active coke moving bed - Google Patents

Purification unit and purification tower for sintering smoke of efficient crossflow active coke moving bed Download PDF

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Publication number
CN102350172A
CN102350172A CN2011102354257A CN201110235425A CN102350172A CN 102350172 A CN102350172 A CN 102350172A CN 2011102354257 A CN2011102354257 A CN 2011102354257A CN 201110235425 A CN201110235425 A CN 201110235425A CN 102350172 A CN102350172 A CN 102350172A
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China
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unit
moving bed
layer
adopts
current type
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CN2011102354257A
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王伟
孙广路
邹德军
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Dalian Rino Group Co Ltd
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Dalian Rino Group Co Ltd
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Priority to CN2011102354257A priority Critical patent/CN102350172A/en
Publication of CN102350172A publication Critical patent/CN102350172A/en
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Abstract

The invention relates to a gas purification equipment, in particular to a purification tower for the sintering smoke of a crossflow active coke moving bed for purifying SO2, NOx, HF, HCl, Dioxin, heavy metal and dust in the sintering smoke in the steel industry. The purification unit for the sintering smoke of an efficient crossflow active coke moving bed relates to an active coke layer and comprises 2-4 layers of active coke layers, wherein the air inlet end of the front layer adopts a gas distribution plate; baffles with holes are used for separating different layers; and the venting end of the rear end adopts a venting hole plate with venting holes. The purification unit for the sintering smoke of an efficient crossflow active coke moving bed has the advantages of simple structure and good gas distribution evenness in the smoke unit. In addition, the purification tower for the sintering smoke of an efficient crossflow active coke moving bed adopts the above smoke unit and has the advantages of large smoke treatment capacity and even airflow distribution, and desulfuration efficiency is obviously improved.

Description

A kind of efficient cross-current type activated coke moving bed sintering gas purifying unit and purifying column
Technical field
The present invention relates to gas purifying equipment, particularly to SO in the steel industry sinter fume 2, the cross-current type activated coke moving bed sintering gas purifying tower that purifies of NOx, HF, HCl 、 bioxin, heavy metal, dust.
Background technology
The steel industry sinter fume is large-minded, and fairly large sintering machine tolerance reaches 1,000,000 mark sides, and temperature is many between the 120-150 degree, moisture 12-15%, O 2Content 15-18%, SO 2Content 400-5000mg/Nm 3, NOx content is at 200-400mg/Nm 3, contain HF, HCl 、 bioxin, heavy metal, dust simultaneously.Twenties sintering machines of desulphurization plant are installed are at present adopted calcium base wet-process and semidry process and amino technology more, have accessory substance secondary pollution problem.
The activated coke dry process is through activated coke chemisorbed, i.e. SO on the activity site in the activated coke duct 2Same O 2, H 2Oxidation reaction takes place and generates H in O 2SO 4, sinter fume temperature, moisture and O 2Content is fit to the generation of this reaction, SO very much 2Clearance can reach more than 95%.Activated coke can realize the SCR low-temperature denitration, and the denitration rate can reach 80%.HF, HCl 、 bioxin, heavy metal, dust also are adsorbed removal in the flue gas simultaneously, have controlled pollutant emission to greatest extent, have reduced secondary pollution to greatest extent, have shortened technological process to greatest extent and have improved economy.
The adsorption cleaning tower is the nucleus equipment of activated coke dry purification process, and what commercial Application was more is fixed bed and moving bed, and the fixed bed andnon-continuous operation manner can not adapt to the big operating mode of smoke treatment amount, and moving bed is handled large-minded being used widely.Moving direction according to flue gas and activated coke; Moving bed can be divided into cross-current type and reverse-flow; Cross-current type gas separates with the solid stream, is convenient to the gas-solid processing that is separated, its gas-solid contacts contact face long-pending big, to handle movable part large-minded, simple for structure few easy to maintenance.
Present cross-flow type moving bed employing side is advanced side and is gone out intake method, and this layout overall structure is compact inadequately, and floor space is bigger, can't adapt to the place restriction.In addition, be difficult to realize the gas distribution uniformity because little, the gas distribution of SR is unreasonable.Moreover activated coke falls from top to down, and the activated coke adsorption capacity on top is stronger, the bottom adsorption capacity a little less than, but flue gas is uniformly distributed with in whole side, causes being difficult to obtaining than high desulfurization efficiency.
Summary of the invention
The objective of the invention is to overcome the not enough problem of present cross-flow type moving bed sintering gas purifying tower, a kind of efficient cross-current type activated coke moving bed sintering gas purifying unit is provided, simple in structure, gas distribution good uniformity in the flue gas unit; The present invention also provides a kind of efficient cross-current type activated coke moving bed sintering gas purifying tower in addition, adopts above-mentioned flue gas unit, and the flue gas treating capacity is big, air-flow is evenly distributed, and can significantly improve desulfuration efficiency.
For achieving the above object; The invention provides following technical scheme: a kind of efficient cross-current type activated coke moving bed sintering gas purifying unit; It is made up of layer 2-4 activated charcoal layer; The anterior layer inlet end adopts air distribution plate, and each interlayer is separated with dividing plate with holes, and back layer exhaust end adopts the vent panel of band steam vent.
Said air distribution plate adopts shutter or tongue tray.
Said dividing plate with holes adopts orifice plate, shutter or tongue tray.
Said vent panel adopts orifice plate, shutter or tongue tray.
The top and bottom of said each activated charcoal layer all are provided with the taper bucket, and the moving flapper of distribution.
The activated charcoal layer of said clean unit translational speed from front to back successively decreases, and anterior layer inlet end activated charcoal layer adopts high load capacity absorption, and charcoal layer translational speed is the fastest; Back layer exhaust end activated charcoal layer air inlet pollutant levels reduce, and charcoal layer translational speed successively decreased.
A kind of efficient cross-current type activated coke moving bed sintering gas purifying tower comprises clean unit, and clean unit is arranged side by side and forms the unit group, and two unit groups are the center symmetric arrangement with the inlet plenum, and the exhaust end of two row unit groups respectively is provided with fumer.
Said purifying column can adopt the multitower parallel connection according to handling the tolerance difference.
Clean unit of the present invention is simple in structure, adopts charcoal layer translational speed to successively decrease, and anterior layer activated charcoal layer adopts high load capacity absorption, and plays the dedusting effect, and charcoal layer translational speed is the fastest; Back layer activated charcoal layer air inlet pollutant levels further reduce, and adopt suitable charcoal layer translational speed to improve adsorbance, and then ensure purification efficiency.Clean unit of the present invention is the same structure cuboid; On divide into charcoal distributor and discharge bucket; The anterior layer inlet end is with shutter, tongue tray gas distribution, and each interlayer is separated with orifice plate, shutter, tongue tray, and back layer exhaust end discharged through orifice plate, shutter, tongue tray.
Purifying column of the present invention is arranged side by side by above-mentioned clean unit and forms a unit group, arranges through symmetrical more side by side method, can satisfy the big characteristics of sinter fume treating capacity, arranges more flexible.Each parts all can directly be assembled connection in the whole device, and is simple and compact for structure, realizes modularization production easily, quick and easy for installation like this, keeps in repair also very convenient.Clean unit is the center line symmetric arrangement with the inlet plenum in the purifying column, and fumer is established at two ends, forms a purifying column jointly, but based on handling the parallel connection of tolerance difference multitower.This device flue gas treating capacity is big, air-flow is evenly distributed, flexible arrangement, the activated coke service efficiency is high, gas cleaning efficient is high.
Description of drawings
Fig. 1 is the structural representation of clean unit;
Fig. 2 is the structural representation of purifying column;
Layer activated charcoal layer 9-discharge bucket 10-clean unit 11-exhaust chamber 12-discharge duct 13-admission line 14-inlet plenum behind label declaration 1-epicone bucket 2-air distribution plate 3-demarcation strip (preceding middle level) 4-demarcation strip among the figure (middle back layer) the 5-vent panel 6-anterior layer activated charcoal layer 7-middle level activated charcoal layer 8-.
The specific embodiment:
Embodiment 1
A kind of efficient cross-current type activated coke moving bed sintering gas purifying unit as shown in Figure 1; It is made up of anterior layer activated charcoal layer 6, middle level activated charcoal layer 7 and back 8 three layers of activated charcoal layer of layer activated charcoal layer; The air distribution plate 2 of anterior layer inlet end adopts the venetian blind type air distribution plate; Each interlayer separates with demarcation strip, is promptly separated by demarcation strip 3 between anterior layer activated charcoal layer and the middle level activated charcoal layer, is separated by demarcation strip 4 between middle level activated charcoal layer and the back layer activated charcoal layer; Back layer exhaust end discharged through vent panel 5; Back three activated charcoal layer translational speeds are successively decreased in clean unit preceding, and anterior layer activated charcoal charcoal layer adopts high load capacity absorption, and charcoal layer translational speed is the fastest; The air inlet pollutant levels reduce in the activated charcoal charcoal layer of middle level, and the charcoal laminar surface cleans more, adopt moderate charcoal layer translational speed to improve adsorbance; Back layer activated charcoal charcoal layer air inlet pollutant levels further reduce, and adopt lower charcoal layer translational speed to carry out adsorption operations.The top and bottom of each layer activated charcoal layer are provided with epicone bucket 1 and discharge bucket 9 respectively, and the upper end closed of activated charcoal layer links to each other with the charcoal distributor through the charcoal dispensing branch, and electronic flapper is established on the distributor top; The activated charcoal of each layer gets into corresponding discharge bucket, and the lower end distribution moves flapper, through electronic flapper rotational speed regulation.
Embodiment 2
A kind of efficient cross-current type activated coke moving bed sintering gas purifying tower as shown in Figure 2; Comprise clean unit, wherein clean unit 10 adopts the clean unit among the embodiment 1, and clean unit is arranged side by side and forms the unit group; Two unit groups are the center symmetric arrangement with inlet plenum 14; The exhaust end that inlet plenum is communicated with admission line 13, two row unit groups is communicated with exhaust chamber 11 respectively, and exhaust chamber is communicated with discharge duct 12.
Said purifying column can adopt the multitower parallel connection according to handling the tolerance difference.

Claims (8)

1. efficient cross-current type activated coke moving bed sintering gas purifying unit; Relate to the activated charcoal layer, it is characterized in that: it is made up of layer 2-4 activated charcoal layer, and the anterior layer inlet end adopts air distribution plate; Each interlayer is separated with dividing plate with holes, and back layer exhaust end adopts the vent panel of band steam vent.
2. a kind of efficient cross-current type activated coke moving bed sintering gas purifying according to claim 1 unit is characterized in that: said air distribution plate adopts shutter or tongue tray.
3. a kind of efficient cross-current type activated coke moving bed sintering gas purifying according to claim 1 unit is characterized in that: said dividing plate with holes adopts orifice plate, shutter or tongue tray.
4. a kind of efficient cross-current type activated coke moving bed sintering gas purifying according to claim 1 unit is characterized in that: said vent panel adopts orifice plate, shutter or tongue tray.
5. a kind of efficient cross-current type activated coke moving bed sintering gas purifying according to claim 1 unit, it is characterized in that: the top and bottom of said each activated charcoal layer all are provided with the taper bucket, and the moving flapper of distribution.
6. a kind of efficient cross-current type activated coke moving bed sintering gas purifying according to claim 1 unit; It is characterized in that: the activated charcoal layer of said clean unit translational speed from front to back successively decreases; Anterior layer inlet end activated charcoal layer adopts high load capacity absorption, and charcoal layer translational speed is the fastest; Back layer exhaust end activated charcoal layer air inlet pollutant levels reduce, and charcoal layer translational speed successively decreased.
7. an efficient cross-current type activated coke moving bed sintering gas purifying tower comprises clean unit, it is characterized in that: clean unit is arranged side by side and forms the unit group, and two unit groups are the center symmetric arrangement with the inlet plenum, and the exhaust end of two row unit groups respectively is provided with fumer.
8. efficient cross-current type activated coke moving bed sintering gas purifying tower is characterized in that: said purifying column can adopt the multitower parallel connection according to handling the tolerance difference.
CN2011102354257A 2011-08-17 2011-08-17 Purification unit and purification tower for sintering smoke of efficient crossflow active coke moving bed Pending CN102350172A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102716643A (en) * 2012-05-31 2012-10-10 东南大学 Device and method for removing acid gases in garbage incineration smoke at high temperature
CN103349892A (en) * 2013-07-16 2013-10-16 上海克硫环保科技股份有限公司 Cross-flow type two-stage moving bed active coke waste gas integrated purification tower
CN104353356A (en) * 2014-11-26 2015-02-18 北京首钢国际工程技术有限公司 Pelletizing flue gas cleaning and adsorbing tower of travelling grate machine
CN105080332A (en) * 2015-07-24 2015-11-25 中冶华天工程技术有限公司 Resource utilization system for pellet sintering waste gas and method
CN105126607A (en) * 2015-07-31 2015-12-09 湘潭大学 Denitration method and device of catalytic cracking regenerated flue gas
CN105233627A (en) * 2015-10-20 2016-01-13 国电科学技术研究院 Multi-partition-bin cross flow moving bed device
CN105817118A (en) * 2016-04-29 2016-08-03 中国科学院过程工程研究所 Active coke modular bearing device, absorbing tower and flue gas purifying method
CN107661681A (en) * 2017-11-08 2018-02-06 中国科学院过程工程研究所 A kind of flue gas pollutant purifying column
CN108525466A (en) * 2018-05-09 2018-09-14 中国科学院过程工程研究所 A kind of low-sulfur flue gas desulfurization and denitrification device
CN112063409A (en) * 2020-09-08 2020-12-11 重庆科技学院 Process and device for preparing oil by pyrolyzing chlorine-containing plastics based on multiphase gas-solid fluidization reaction

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102716643A (en) * 2012-05-31 2012-10-10 东南大学 Device and method for removing acid gases in garbage incineration smoke at high temperature
CN103349892A (en) * 2013-07-16 2013-10-16 上海克硫环保科技股份有限公司 Cross-flow type two-stage moving bed active coke waste gas integrated purification tower
CN103349892B (en) * 2013-07-16 2015-09-23 上海克硫环保科技股份有限公司 A kind of cross-current type twin-stage moving-bed active coke waste gas integrated purification tower
CN104353356A (en) * 2014-11-26 2015-02-18 北京首钢国际工程技术有限公司 Pelletizing flue gas cleaning and adsorbing tower of travelling grate machine
CN105080332A (en) * 2015-07-24 2015-11-25 中冶华天工程技术有限公司 Resource utilization system for pellet sintering waste gas and method
CN105126607B (en) * 2015-07-31 2018-08-31 湘潭大学 A kind of method of denitration and device of regeneration fume from catalytic cracking
CN105126607A (en) * 2015-07-31 2015-12-09 湘潭大学 Denitration method and device of catalytic cracking regenerated flue gas
CN105233627A (en) * 2015-10-20 2016-01-13 国电科学技术研究院 Multi-partition-bin cross flow moving bed device
CN105817118A (en) * 2016-04-29 2016-08-03 中国科学院过程工程研究所 Active coke modular bearing device, absorbing tower and flue gas purifying method
CN107661681A (en) * 2017-11-08 2018-02-06 中国科学院过程工程研究所 A kind of flue gas pollutant purifying column
CN108525466A (en) * 2018-05-09 2018-09-14 中国科学院过程工程研究所 A kind of low-sulfur flue gas desulfurization and denitrification device
CN112063409A (en) * 2020-09-08 2020-12-11 重庆科技学院 Process and device for preparing oil by pyrolyzing chlorine-containing plastics based on multiphase gas-solid fluidization reaction
CN112063409B (en) * 2020-09-08 2022-04-26 重庆科技学院 Process and device for preparing oil by pyrolyzing chlorine-containing plastics based on multiphase gas-solid fluidization reaction

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Application publication date: 20120215