CN207371539U - Three-stage carbon base catalyst regenerates Tower System - Google Patents
Three-stage carbon base catalyst regenerates Tower System Download PDFInfo
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- CN207371539U CN207371539U CN201721358520.5U CN201721358520U CN207371539U CN 207371539 U CN207371539 U CN 207371539U CN 201721358520 U CN201721358520 U CN 201721358520U CN 207371539 U CN207371539 U CN 207371539U
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Abstract
The utility model provides a kind of three-stage carbon base catalyst regeneration Tower System, to improve the capacity usage ratio in carbon base catalyst regenerative process, matching and flexibility of the enhancing carbon base catalyst regenerator with desulphurization denitration adsorption tower.The regenerator tower body of the utility model is from top to bottom divided into prepared section, preheating section, First Transition section, bringing-up section, the second changeover portion, cooling section and outlet section, three sections of the preheating section, bringing-up section and cooling section use pipe shell type heat exchange structure, regenerator tower body is tube side, tube side walks carbon base catalyst, and shell side walks heat transferring medium；Carbon base catalyst enters from tower top, and the bottom of regenerator is reached via tube side, wherein setting First Transition section between preheating section and bringing-up section, the second changeover portion is equipped between bringing-up section and cooling section, two changeover portions are enriched with SO for discharging in tower2Gas discharges SO2Gas passes to sulphuric acid plant.
Description
Technical field
The utility model belongs to field of environment engineering, and in particular to a kind of using carbon base catalyst as adsorbent and catalyst
Three-stage carbon base catalyst regenerator in boiler smoke combined desulfurization and denitration device.
Background technology
Carbon base catalyst dry method flue gas Pollutant Control Technology, can realize desulfurization and denitrification integral, can also remove flue dust,
SO3, the impurity such as heavy metal.The technology does not consume water substantially, and it is highly concentrated to save the high desulfuration byproduct of great lot of water resources desulfuration efficiency
Spend SO2, convenient for recycling, this is the fairly obvious flue gas pollutant control technology of new generation of an advantage.In steel, smelting
The multiple fields such as gold, electric power, waste incineration have great application prospect.
Carbon base catalyst flue gas desulfurization and denitrification technical principle is：Flue gas under the absorption and catalytic action of carbon base catalyst,
SO in flue gas2、O2And H20, which reacts, generates H2SO4, H2SO4Absorption is on carbon base catalyst surface；It is catalyzed simultaneously using charcoal base
The catalytic performance of agent, NO in flue gasxCatalytic reduction reaction generation N occurs with ammonia2And H2O realizes the desulphurization denitration of flue gas.
Carbon base catalyst after adsoption catalysis reaction carries out regeneration Posterior circle and utilizes.Carbon base catalyst is the substance after activated carbon improvement,
Specific activity charcoal has stronger adsorption capacity and higher compression strength, is more suitable for as in flue gas combined desulfurization and denitration technology
Adsorbent.
In carbon base catalyst desulfurizing and denitrifying process, the carbon base catalyst after purifying smoke makes again after regeneration treatment
With regenerative process releases the enrichment SO of high concentration2Gas can realize that Sulphur ressourceization utilizes.Carbon base catalyst renovation process
Including two kinds of heating regeneration and washing regeneration, since washing regeneration technology water consumption is big, regeneration is not thorough, easily forms secondary dirt
It contaminates and by-product dilute sulfuric acid is difficult to recycling, therefore, in carbon base catalyst technique, heating regeneration is widely used.
Heating regeneration needs carbon base catalyst being heated to 400 DEG C or more, and reaction temperature is high, the heat source of regenerator bringing-up section
No matter using flue gas, high-temperature steam or the electrical heating after blast furnace gas combustion, substantial amounts of energy will be all consumed.Therefore, how
It will be one of main issue of popularization carbon base catalyst flue gases purification to reduce regeneration energy consumption.
The flow condition of carbon base catalyst will influence carbon base catalyst and heat, cold air heat exchange efficiency and charcoal in regenerator
The uniform blanking knot of entrance cloth and outlet of the regeneration efficiency of base catalyst, and the structure of regenerator, especially carbon base catalyst
Structure is undoubtedly one of key influence factor therein.
Due to station boiler there are load variations it is big the problem of, exhaust gas volumn changes greatly, and causes single regenerator knot
The carbon base catalyst regenerator of structure and desulphurization denitration adsorption tower matching, flexibility are poor, carbon base catalyst regenerator operation into
This is higher.
The content of the invention
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of three-stage carbon base catalyst again
Raw Tower System, to improve the capacity usage ratio in carbon base catalyst regenerative process, enhancing carbon base catalyst regenerator takes off with desulfurization
The matching of nitre adsorption tower and flexibility.
Technical solution is as follows used by the utility model：
A kind of three-stage carbon base catalyst regenerates Tower System, it is characterized in that：Regenerator tower body is from top to bottom divided into pre-
Standby section, preheating section, First Transition section, bringing-up section, the second changeover portion, cooling section and outlet section, the preheating section, bringing-up section and cold
But for three sections of section using pipe shell type heat exchange structure, regenerator tower body is tube side, and tube side walks carbon base catalyst, and shell side walks heat exchange and is situated between
Matter；Carbon base catalyst enters from tower top, the bottom of regenerator is reached via tube side, wherein being set between preheating section and bringing-up section
First Transition section, is equipped with the second changeover portion between bringing-up section and cooling section, and two changeover portions are enriched with SO for discharging in tower2
Gas discharges SO2Gas passes to sulphuric acid plant.
The further design of the utility model is：
Wherein prepared section is equipped with nitrogen heater, and the nitrogen after heating is passed through regenerator preparation section as protection gas through pipeline
It is interior.
The heat transferring medium of the preheating section shell side is using the hot-air after cooling section heat exchange.
The bringing-up section shell side uses air as heat transferring medium, and heat transferring medium is after air heater heats, by hot empty
Feed channel is connected to heating pars infrasegmentalis, is heated with being sent again to air by hot-air blower after carbon base catalyst heat exchange in bringing-up section tower
Device, the heat exchange after heating are situated between to sending to bringing-up section circulating-heating；
The heat transferring medium of cooling section uses cold air (i.e. surrounding air), and the air after exchanging heat with lower part carbon base catalyst passes through
Pipeline is connected to preheating pars infrasegmentalis, exchanges heat with preheating section section carbon base catalyst, cold air is directly discharged into air after heat exchange.
The outlet section of regenerator is set there are two carbon base catalyst outlet, and each carbon base catalyst outlet corresponds to a tune respectively
The roll feeder of activated coke flow is saved, roll feeder has the function of frequency control.
Deflector, water conservancy diversion plate level are both provided in the shell side of the preheating section of regenerator, bringing-up section and cooling section air side
It sets.
Outside the shell side of the preheating section of regenerator, bringing-up section and cooling section（I.e. outside tower body）It is both provided with insulating layer.
Level-sensing device is provided with by the carbon base catalyst entrance of regenerator preparation section top.
Isolation sieve plate is equipped in regenerator, regenerator is divided into two regions.
The utility model compared with prior art, has following features：
1st, carbon base catalyst reaches 400 DEG C or more through the heating of regenerator bringing-up section, releases SO in the process2Gas,
Hereafter, carbon base catalyst is cooled to 100 DEG C or so return adsorption towers through regenerator cooling section again；If regenerator cooling section uses
Cold air is as cooling medium, and most of regenerators are all the directly outer significant wastage arranged, can cause heat of these heat sources, this reality
With the new recycling by cooling section outlet air waste heat, drying process has been carried out to the carbon base catalyst before entrance bringing-up section,
The Btu utilization of realization.
2nd, regenerator enrichment SO2Gas generally requires air outlet temperature to reach more than its acid dew-point temperature, can effectively avoid richness
Collect SO2Corrosion of the gas to outlet conduit.But the nitrogen containing protection and sealing in enriched gas, nitrogen temperature is relatively low,
If being passed through by environment temperature in tower, final enrichment SO not only will be greatly reduced2The temperature of mixed gas can also cause temperature height
Activated coke because thermal stress wear, the utility model to add in tower in nitrogen first heated, overcome corresponding problem.It improves
Protection and sealing nitrogen also improve the temperature of regenerator preheating section carbon base catalyst into the temperature of regenerator indirectly.
3rd, preheating section is additionally arranged on the utility model regeneration tower structure, when adding stop of the carbon base catalyst in tower
Between, improve the regeneration efficiency of carbon base catalyst；The heating temperature difference of bringing-up section carbon base catalyst is reduced, saves air heating
It is damaged caused by thermal stress to reduce activated coke for the energy expenditure of device；
4th, regenerator is realized to preheat using two-stage（Nitrogen heats and warming up section heating）, the carbon base catalyst of preheating may be used also
Regenerator enriched gas outlet air temperature is improved indirectly, avoids corroding caused by enriched gas temperature is too low pipeline.
5th, three-stage carbon base catalyst regenerator entrance preparation section is square-section, is conducive to carbon base catalyst intake section
Uniform distribution, be divided into Liang Geta areas since preparation section, the regenerator area section after subregion is approximately prepared section square-section
Half, be conducive to the uniform blanking of carbon base catalyst exit portion, compared with the regeneration tower structure of not subregion, enhance regeneration
The heat exchange efficiency and regeneration effect of whole carbon base catalyst in tower.
6th, the roll feeder of regenerator outlet has the function of variable frequency adjustment, can be according to station boiler load or smoke evacuation quantitative change
Change situation adjusts the flow of activated coke, greatly improves the flexibility of regenerator, reduces the operation of carbon base catalyst regenerator
Cost.
7th, it is as follows than the superiority embodiment of the two-piece design in the prior art using three-stage design in the utility model：
First, the air exported using cooling section removes the carbon base catalyst of preheating preheating section, improves the energy of regenerator
Utilization rate, compared to the energy consumption that same type two-part regenerator reduces 20% or so；
Second, to being heated into the nitrogen in tower, the mean temperature of changeover portion enrichment SO2 gases is improved 20%,
Corrosive pipeline is substantially reduced with equipment failure rate；
3rd, compared to existing two-part regenerator, preheating section is additionally arranged, one times of carbon base catalyst is quite added and exists
Residence time in tower improves the regeneration efficiency of carbon base catalyst；Reduce the heating temperature of 40% bringing-up section carbon base catalyst
Difference, saves the energy expenditure of air heater 40%, and activated coke breakage caused by thermal stress reduces 25% or so.
8th, the richness that in the utility model on the one hand the design of changeover portion can be exported according to First Transition section and the second changeover portion
The collection factors such as SO2 concentration and pressure flexibly select the discharge path of enrichment SO2 gases, on the other hand reduce and are diffused into cooling
The enrichment SO2 gases of section, so as to reduce the acid corrosion that enrichment SO2 gases arrange cooling section pipe.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1- carbon base catalyst entrances；2- level-sensing devices；3- preparation sections；4- preheating sections；5- First Transition sections；6- is heated
Section；The second changeover portions of 7-；8- cooling sections；9- outlet sections；10- roll feeders；11- carbon base catalysts export；12- tops nitrogen
Come；13- preheating sections top cold air goes out；14- preheating pars infrasegmentalis cold airs come；15- parsings gas First Transition section goes out；16- adds
Hot arc hot-air goes out；17- bringing-up sections hot-air comes；18- parsing the second changeover portions of gas go out；19- cooling section cold airs go out；20-
Cooling section cold air comes；21- lower parts nitrogen comes.
Specific embodiment：
The utility model will be further described below in conjunction with the accompanying drawings：
Embodiment one：
As shown in Figure 1, the utility model three-stage carbon base catalyst regenerates Tower System, regenerator tower body is from top to bottom successively
It is divided into seven sections, is respectively：Preparation section 3, preheating section 4, First Transition section 5, bringing-up section 6, the second changeover portion 7, cooling section 8 and outlet
Section 9.
Using pipe shell type heat exchange structure, regenerator tower body is tube side, is managed for 8 three sections of preheating section 4, bringing-up section 6 and cooling section
Journey walks carbon base catalyst, and shell side walks heat transferring medium.Carbon base catalyst enters from tower top, and the bottom of regenerator is reached via tube side,
First Transition section 5 wherein between preheating section and bringing-up section is set, the second changeover portion 7 is equipped between bringing-up section and cooling section,
Two changeover portions are enriched with SO for discharging in tower2Gas discharges SO2Gas passes to sulphuric acid plant.
In the utility model, wherein prepared section is equipped with nitrogen heater, the nitrogen after heating leads to as protection gas through pipeline
Enter in regenerator preparation section.The heat transferring medium of preheating section shell side utilizes the reuse of heat using the hot-air after cooling section heat exchange.
Bringing-up section shell side uses air as heat transferring medium, and heat transferring medium is connected to after air heater heats by hot-air duct
It is sent again by hot-air blower to air heater after carbon base catalyst heat exchange in heating pars infrasegmentalis, with bringing-up section tower, after heating
Heat exchange is situated between to sending to bringing-up section circulating-heating；The heat transferring medium of cooling section uses air, after exchanging heat with lower part carbon base catalyst
Air is connected to preheating pars infrasegmentalis through pipeline, exchanges heat with preheating section section carbon base catalyst, cold air is directly discharged into air after heat exchange.
The cold air of cooling section 8 is introduced to through cold air wind turbine 20 in tower.Tower bottom is also passed into unheated nitrogen as protection gas.
The outlet section of regenerator is set there are two carbon base catalyst outlet 11, and each carbon base catalyst outlet corresponds to one respectively
The roll feeder of activated coke flow is adjusted, roll feeder has the function of frequency control.The preheating section of regenerator, bringing-up section and
Cooling section air side is both provided with deflector, and deflector is horizontally disposed with.The shell side of the preheating section of regenerator, bringing-up section and cooling section
It is both provided with insulating layer outside.Level-sensing device is provided with by the carbon base catalyst entrance of regenerator preparation section top.Regenerator entrance preparation
Section is square-section, is conducive to the uniform distribution of carbon base catalyst intake section.Regenerator is since preparation section by isolation sieve plate
It is divided into Liang Geta areas, the regenerator area section after subregion is approximately the half of prepared section square-section, is conducive to carbon base catalyst
The uniform blanking of exit portion compared with the regeneration tower structure of not subregion, enhances in regenerator changing for whole carbon base catalyst
The thermal efficiency and regeneration effect.
Workflow：Carbon base catalyst enters regenerator through tower top entrance, initially enters and is divided into two towers in prepared section storehouse
Area carries out heat exchange regeneration via preheating section and bringing-up section tube side with the high temperature air of corresponding section shell-side again successively, every time after regeneration
Carbon base catalyst into the changeover portion that is connected, the sulphur dioxide rich gas for regenerating desorption is expelled to relieving haperacidity by changeover portion
System, then, cooling air of the carbon base catalyst through cooling section tube side and this section of shell-side, which exchanges heat, to cool down, and is finally exported by outlet section
Discharge regenerator.
Embodiment two：
The three-stage carbon base catalyst regeneration Tower System of this example, regenerator tower body be from top to bottom divided into prepared section,
Preheating section, First Transition section, bringing-up section, the second changeover portion, cooling section and outlet section.The heat transferring medium of wherein preheating section shell side is adopted
With electrical heating or the heat source of other parts, other parts structure is the same as embodiment one.The system is likely to result in energy dissipation, a side
The heat of face cooling section heat absorption is underused, and another aspect preheating section adds additional heat source again.
Embodiment three：
The three-stage carbon base catalyst regeneration Tower System of this example, regenerator tower body be from top to bottom divided into prepared section,
Preheating section, First Transition section, bringing-up section, the second changeover portion, cooling section and outlet section.Wherein prepared section is not provided with nitrogen heating
Device, other parts structure is the same as embodiment one.Nitrogen is passed directly into through pipeline in regenerator preparation section as protection gas in the system,
The temperature of such changeover portion enrichment SO2 gases cannot improve, and corrosive pipeline can be more with equipment failure rate.
The utility model can have various suitable changes and variation, within the spirit and principle of the utility model institute
Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of protection of this utility model.In the utility model,
Carbon base catalyst belongs to one kind of activated carbon, all adsorbents for belonging to activated carbon class, including：The activated carbon of routine, the catalysis of charcoal base
Agent, carbon-based adsorbent etc., should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of three-stage carbon base catalyst regenerates Tower System, it is characterized in that：Regenerator tower body is from top to bottom divided into preparing
Section, preheating section, First Transition section, bringing-up section, the second changeover portion, cooling section and outlet section, the preheating section, bringing-up section and cooling
Three sections of section is using pipe shell type heat exchange structure, and regenerator tower body is tube side, and tube side walks carbon base catalyst, and shell side walks heat transferring medium；
Carbon base catalyst enters from tower top, and the bottom of regenerator is reached via tube side, wherein setting the between preheating section and bringing-up section
One changeover portion, is equipped with the second changeover portion between bringing-up section and cooling section, and two changeover portions are enriched with SO for discharging in tower2Gas
Body discharges SO2Gas passes to sulphuric acid plant.
2. three-stage carbon base catalyst according to claim 1 regenerates Tower System, it is characterized in that：Wherein prepared section is equipped with nitrogen
Hot-air heater, the nitrogen after heating are passed through through pipeline in regenerator preparation section as protection gas.
3. three-stage carbon base catalyst according to claim 2 regenerates Tower System, it is characterized in that：The preheating section shell side
Heat transferring medium is using the hot-air after cooling section heat exchange.
4. the three-stage carbon base catalyst stated according to claim 1,2 or 3 regenerates Tower System, it is characterized in that：The bringing-up section shell
Journey uses air as heat transferring medium, and heat transferring medium is connected to by hot-air duct under bringing-up section after air heater heats
In portion, with bringing-up section tower carbon base catalyst heat exchange after sent again by hot-air blower to air heater, the heat exchange after heating be situated between to
It send to bringing-up section circulating-heating.
5. three-stage carbon base catalyst according to claim 4 regenerates Tower System, it is characterized in that：The heat transferring medium of cooling section
Using cold air, the air after exchanging heat with lower part carbon base catalyst is connected to preheating pars infrasegmentalis through pipeline, is urged with preheating section charcoal base
Agent exchanges heat, and cold air is directly discharged into air after heat exchange.
6. three-stage carbon base catalyst according to claim 5 regenerates Tower System, it is characterized in that：The outlet section of regenerator is set
There are two carbon base catalysts to export, and each carbon base catalyst outlet corresponds to the roll-type feed of an adjusting activated coke flow respectively
Machine, roll feeder have the function of frequency control.
7. three-stage carbon base catalyst according to claim 5 regenerates Tower System, it is characterized in that：The preheating section of regenerator,
Bringing-up section and cooling section air side shell side are both provided with deflector, and deflector is horizontally disposed with.
8. three-stage carbon base catalyst according to claim 6 regenerates Tower System, it is characterized in that：The preheating section of regenerator,
Insulating layer is both provided with outside the shell side of bringing-up section and cooling section.
9. three-stage carbon base catalyst according to claim 6 regenerates Tower System, it is characterized in that：Regenerator preparation section top
Level-sensing device is provided with by carbon base catalyst entrance.
10. three-stage carbon base catalyst according to claim 1 regenerates Tower System, it is characterized in that：Be equipped in regenerator every
Regenerator is divided into two regions from sieve plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721358520.5U CN207371539U (en) | 2017-10-20 | 2017-10-20 | Three-stage carbon base catalyst regenerates Tower System |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721358520.5U CN207371539U (en) | 2017-10-20 | 2017-10-20 | Three-stage carbon base catalyst regenerates Tower System |
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| CN207371539U true CN207371539U (en) | 2018-05-18 |
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ID=62336388
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730679A (en) * | 2018-08-09 | 2018-11-02 | 国电环境保护研究院有限公司 | A kind of anticorrosion parsing gas discharge system |
| CN108745331A (en) * | 2018-07-12 | 2018-11-06 | 中冶长天国际工程有限责任公司 | A kind of novel absorbent charcoal Analytic Tower and activated carbon parsing technique |
-
2017
- 2017-10-20 CN CN201721358520.5U patent/CN207371539U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108745331A (en) * | 2018-07-12 | 2018-11-06 | 中冶长天国际工程有限责任公司 | A kind of novel absorbent charcoal Analytic Tower and activated carbon parsing technique |
| CN108745331B (en) * | 2018-07-12 | 2024-02-13 | 中冶长天国际工程有限责任公司 | Novel activated carbon analysis tower and activated carbon analysis process |
| CN108730679A (en) * | 2018-08-09 | 2018-11-02 | 国电环境保护研究院有限公司 | A kind of anticorrosion parsing gas discharge system |
| CN108730679B (en) * | 2018-08-09 | 2023-12-08 | 国电环境保护研究院有限公司 | Corrosion-resistant analysis gas exhaust system |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 Qixia, Jiangsu province Wen Dong Dong Road, No. 1, No. Patentee after: National Electric Science and Technology Research Institute Co., Ltd. Address before: 210000 Qixia, Jiangsu province Wen Dong Dong Road, No. 1, No. Patentee before: Guodian Science and Technology Research Institute |
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