CN107998818A - The inert gas protection system and method for activated carbon adsorber - Google Patents
The inert gas protection system and method for activated carbon adsorber Download PDFInfo
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- CN107998818A CN107998818A CN201710315539.XA CN201710315539A CN107998818A CN 107998818 A CN107998818 A CN 107998818A CN 201710315539 A CN201710315539 A CN 201710315539A CN 107998818 A CN107998818 A CN 107998818A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/02—Separation 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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation 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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Separation Of Gases By Adsorption (AREA)
Abstract
The inert gas protection system of activated carbon adsorber includes adsorption tower, and according to flow of flue gas direction, one side lower part of adsorption tower is equipped with smoke inlet, and another upper lateral part of adsorption tower is equipped with exhanst gas outlet, it is characterised in that：Double baffle doors are equipped with the smoke inlet of adsorption tower, single baffle door is equipped with the exhanst gas outlet of adsorption tower, the first pipeline is connected with so as to supplying inert gas in the bottom of towe of adsorption tower, the end of first pipeline is equipped with the first valve, the front end of second pipe is connected with the first pipeline and the space between the rear end of second pipe and former and later two baffle doors of double baffle doors connects, second pipe is equipped with the second valve, the front end of 3rd pipeline is connected on the first pipeline and the tie point is between second pipe and the first valve, and the rear end of the 3rd pipeline is connected with the downstream space of double baffle doors of smoke inlet, 3rd pipeline is equipped with the 3rd valve, 4th pipeline is connected in the downstream position of the 3rd valve with the 3rd pipeline, 4th pipeline is equipped with the 4th valve.
Description
Technical field
The present invention relates to the inert gas shielding system of the activated carbon adsorber in the flue gas purification system of agglomeration for iron mine machine
System, more specifically to including activated carbon adsorber and active carbon desorption tower flue gas purification system (i.e. flue gas absorption with
Resolution system) in realize the system of inert gas shielding, and the inert gas shielding method of activated carbon adsorber.
Background technology
Activated carbon method processing flue gas technology has had more than 50 years research applicating history, the technical research of early stage and application master
Concentrate on the states such as Germany, Japan, the U.S..The BF companies of Germany begin to have developed in nineteen fifty-seven (present DMT companies)
Reinluft method desulfurization technologies, Japanese then begin one's study active carbon desulfurization in the mid-1960s, German Lucci corporation is also more early
Progress washing regenerated carbon flue gas desulfurization technique research.With the development of activated carbon method flue gas desulfurization technique abroad
With maturation, it is more representational such as the BF methods, Reinluft methods, Lurgi methods of Germany to generate some；The day legislation of Japan,
Sumitomo method；The Westraco methods in the U.S..
For industrial smoke, the especially sintering device flue gas of steel and iron industry, using including activated carbon adsorber and parsing
The desulphurization and denitration device and technique of tower are more satisfactory.De- including activated carbon adsorber and Analytic Tower (or regenerator)
In sulphur, denitrification apparatus, activated carbon adsorber is used for from sintering flue gas or exhaust gas (the especially sintering cigarette of the sintering machine of steel and iron industry
Gas) pollutant of the absorption including oxysulfide, nitrogen oxides and dioxin, and Analytic Tower is used for the hot recycling of activated carbon.
Activated carbon desulfurization has that desulfurization degree is high, denitration can be achieved at the same time, Tuo bioxin, dedusting, does not produce waste water and dregs
The advantages that, it is extremely promising flue gas purifying method.Activated carbon can regenerate at high temperature, when temperature is higher than 350 DEG C, absorption
The pollutants such as oxysulfide on the activated carbon, nitrogen oxides, dioxin occur fast resolving or decompose that (sulfur dioxide is solved
Analysis, nitrogen oxides is He bioxin is decomposed).And with the rise of temperature, the reproduction speed of activated carbon is further speeded up, regeneration
Time shortens, and preferably regenerating active carbon temperature is approximately equal to 430 DEG C in general control Analytic Tower, and therefore, preferably parsing is warm
It is for example in 390-450 DEG C of scope, more preferably in 400-440 DEG C of scope to spend (or regeneration temperature).
In traditional active carbon desulfurization technique, flue gas introduces adsorption tower by booster fan, and ammonia and sky are sprayed into entering tower mouth
The mixed gas of gas, to improve NOXRemoval efficiency, purified flue gas, which enters, sinters main smoke stack emission.Activated carbon is by tower top
It is added in adsorption tower, and is moved down under the action of gravity and bottom of towe drawing mechanism.The activated carbon that Analytic Tower comes out is by living
Property charcoal conveyer be delivered to adsorption tower, the activated carbon after adsorption tower absorption pollutant saturation is discharged by bottom, the activated carbon of discharge
Analytic Tower is delivered to by activated carbon conveyer, carries out regenerating active carbon.
Activated carbon flue gases purification have can simultaneous SO_2 and NO removal, realize that by-product resource, adsorbent are recycled
Using, denitrification efficiency is high the features such as, right and wrong are often with promising desulfurization and denitrification integral technology.Including activated carbon
In the desulphurization and denitration device of adsorption tower and Analytic Tower (or regenerator), activated carbon adsorber is used for (outstanding from sintering flue gas or exhaust gas
The sintering flue gas of the sintering machine of its steel and iron industry) pollutant of the absorption including oxysulfide, nitrogen oxides and dioxin, and
Analytic Tower is used for the hot recycling of activated carbon.
Activated carbon method flue gases purification has the function of simultaneous SO_2 and NO removal, and the main equipment that this technique includes has absorption
Tower, regenerator and activated carbon conveying device.
The effect of Analytic Tower is by the SO of activated carbon adsorption2Discharge, while the temperature more than 400 DEG C and certain
, bioxin decomposable asymmetric choice net more than 80% under residence time, activated carbon recycles again after cooling down, sieving.The SO discharged2Can
Sulphuric acid etc., the communicated device of activated carbon after parsing are sent to adsorption tower and are re-used to absorption SO2And NOXDeng.
The NO in adsorption tower and Analytic TowerXThe reaction such as SCR, SNCR occurs with ammonia, so as to remove NOX.Dust is passing through absorption
It is tightly held by activated carbon during tower, ash cellar, Ran Houke is sent to for active carbon powder in the case where the vibrating screen of Analytic Tower bottom is separated, sieved
It is sent to blast furnace or sintering is used as fuel.
To promote, China industrializes steel industry, the development of urbanization is made that significant contribution, but China's steel work at the same time
Industry Environmental Protection Level is low, and specific yield pollutant discharge amount is higher, seriously restricts the raising of steel industry whole competitiveness.For control
Pollutant emission processed, State Ministry of Environmental Protection formulate《Steel sintering, pelletizing industrial air pollution thing discharge standard》, it is indicated that from 2015
On January 1, in, existing steel enterprise sintering, pelletizing perform following Air Pollutant Emission limit value：SO2 200mg/m3、NOx
300mg/m3, dioxins 0.5ng-TEG/m3.As it can be seen that steel industry air contaminant treatment is lifted by original dedusting, desulfurization
For SO2The multi-pollutant Collaborative Control such as-NOx- bioxin.At present, state's inner desulfurization technology tends to be ripe, and denitration takes off bioxin and still locates
In the starting stage.Domestic Shanghai Ke Liu companies use activated coke technology, its structure shape in coal-burning boiler and nonferrous smelting industry
Formula and principle are consistent with Sumitomo.
Activated carbon (Jiao) method sintering gas purifying technology is a kind of dry method flue gas treatment technology of resourcebility, has section
Water, desulphurization and denitration, Tuo bioxin, removing heavy-metal, dedusting and remove other micro harmful smoke components (such as HCl, HF, SO3Deng)
Function, while Sulphur ressource (the high concentration SO that the recyclable country is in short supply2Concentrated sulfuric acid etc. can be prepared).
However, activated carbon is a kind of inflammable substance, during gas cleaning, since activated carbon blanking has some setbacks, cause
Buildup in tower, reaction heat cannot discharge in time, or since the control of adsorption column inlet flue-gas temperature is improper etc., may cause to adsorb
There is high temperataure phenomena in activated carbon in tower, or even burns.
After adsorption tower high temperature, traditional inert gas shielding method is that nitrogen is directly passed through into tower, does not consider indifferent gas
Flow regime and high temperature precautionary measures of the body in tower, protecting effect is not particularly evident.
In order to ensure system operation safety, the application proposes a kind of inert gas protection system and method.
The content of the invention
The object of the present invention is to provide a kind of inert gas protection system of activated carbon adsorber.
According to the present invention, there is provided the inert gas protection system of activated carbon adsorber, it includes adsorption tower, according to flue gas stream
Dynamic direction, one side lower part of adsorption tower are equipped with smoke inlet, and another upper lateral part of adsorption tower is equipped with exhanst gas outlet.The wherein cigarette of adsorption tower
Double baffle doors are provided with gas entrance.Single baffle door is provided with the exhanst gas outlet of adsorption tower.It is connected with the bottom of towe of adsorption tower
First pipeline.The latter end of first pipeline is equipped with the first valve.The front end of second pipe is connected with the first pipeline and the second pipe
Space between the rear end in road and former and later two baffle doors of double baffle doors connects.Second pipe is equipped with the second valve.3rd
The front end of pipeline is connected on the first pipeline and the tie point is between second pipe and the first valve.And the 3rd pipeline
Rear end is connected with the downstream space of double baffle doors of smoke inlet.3rd pipeline is equipped with the 3rd valve.4th pipeline is the 3rd
The downstream position of valve is connected with the 3rd pipeline.4th pipeline is equipped with the 4th valve.
It is preferred that said system further includes temperature monitor, temperature monitor is used to monitor the temperature in adsorption tower.
It is preferred that the upstream end of the first pipeline is connected to inert gas supply line or inert gas source of supply.It is preferred that inertia
Gas is one kind in nitrogen, helium or argon gas, more preferably nitrogen.
It is preferred that the upstream end of the 4th pipeline is connected to ammonia supply line or ammonia source of supply.
It is preferred that the temperature measuring probe of temperature monitor is stretched into adsorption tower space through absorption tower side wall；Preferably
It is that temperature measuring probe is the temperature detector of infrared detection formula or the temperature detector of thermojunction type.
According to the present invention, a kind of inert gas shielding method of activated carbon adsorber is also provided, this method includes following step
Suddenly：
1) adsorption tower system normal operation, temperature monitor monitor temperature in adsorption tower in real time；
2) double baffle doors are opened with single baffle door, and flue gas enters in adsorption tower from smoke inlet and arranged from exhanst gas outlet
Go out；
3) the 4th valve is opened, and ammonia is passed through in adsorption tower by the 4th pipeline, while the first valve, the second valve and the
Three valves are closed, and temperature monitor shows 150 DEG C of temperature ＜ in adsorption tower at this time；
4) when temperature in tower<At 150 DEG C, adsorption tower system runs well, still, when temperature >=150 DEG C in tower, according to
The actual temp that temperature monitor is shown, operates double baffle doors, single baffle door and each valve accordingly.
It is preferred that when temperature monitor shows in adsorption tower 160 DEG C of temperature >=150 DEG C and ＜, the operation of step 4) is specific
For：First valve is opened, and inert gas is passed through into bottom of towe via the first pipeline.
It is preferred that when temperature monitor shows temperature >=160 DEG C in adsorption tower, the operation of step 4) is specially：
Double baffle doors are turned off with single baffle door, separate flue gas, and the 4th valve closes, stops being passed through ammonia into tower, the
Two valves are opened, and inert gas is passed through into the space between former and later two baffle doors of double baffle doors through second pipe, are separated
Oxygen, the 3rd valve are opened, and inert gas is passed through into adsorption tower through the 3rd pipeline；Preferably, open the second valve and
While three valves, the first valve is opened, and inert gas is passed through into bottom of towe via the first pipeline.
It is preferred that the inert gas is one kind in nitrogen, helium or argon gas, preferably nitrogen.
In this application, in general, the tower height of adsorption tower is, such as 8-50m, preferably 10-48m, preferably 13-45m, excellent
Select 15-40m, more preferably 18-35m.The tower height of adsorption tower refers to export to activity at the top of adsorption tower from absorption tower bottom activated carbon
The height of the agent structure of the height of charcoal entrance, i.e. tower.
In the present invention, do not required particularly for Analytic Tower, the Analytic Tower of the prior art can be used in the present invention.
Preferably, Analytic Tower is the vertical Analytic Tower of shell pipe type, and wherein activated carbon is inputted from tower top, is flowed downwardly through tube side, is then arrived
Up to bottom of towe, and heat gas then flows through shell side, and heat gas enters from the side of tower, and the activated carbon with flowing through tube side carries out hot friendship
Change and cool down, then exported from the opposite side of tower.In the present invention, do not required particularly for Analytic Tower, the prior art
Analytic Tower can be used in the present invention.Preferably, Analytic Tower is the vertical Analytic Tower of shell pipe type (or package type), wherein activity
Charcoal is inputted from tower top, flows downwardly through the tube side of top heating zone, then reaches one in top heating zone and lower part cooling zone
Between a cushion space, then flow through the tube side of lower part cooling zone, then reach bottom of towe, and heat gas (or high warm
Wind) then flow through the shell side of heating zone, the side of heat gas (400-450 DEG C) the analytically heating zone of tower enters, with flow through plus
The activated carbon of hot-zone tube side carries out indirect heat exchange and cools down, and is then exported from the opposite side of the heating zone of tower.Wind is cooled down from solution
The side for analysing the cooling zone of tower enters, and with flowing through the parsing of cooling zone tube side, regenerated activated carbon carries out indirect heat exchange.
After indirect heat exchange, cooling wind is warming up to 90-130 DEG C (such as from about 100 DEG C).
In general, usually have 10-45m's, preferably 15-40m, more preferably 20-35m for the Analytic Tower in the present invention
Tower height.Desorber usually has the main body horizontal stroke of 6-100 ㎡, preferably 8-50 ㎡, more preferably 10-30 ㎡, further preferred 15-20 ㎡
Sectional area.
" parse " and be used interchangeably with " regeneration " in this application.
Advantages of the present invention：
The system of the present invention can make inert gas well-regulated flowing in tower, play optimal cooling or extinguishing effect.
Brief description of the drawings
Fig. 1 is the schematic diagram of the inert gas protection system of the activated carbon adsorber of the present invention.
Reference numeral：
Reference numeral：1：Adsorption tower；2：Smoke inlet；3：Exhanst gas outlet；4：Double baffle doors；5：Single baffle door；6：First
Valve；7：Second valve；8：3rd valve；9：4th valve；10：Temperature monitor；L1：First pipeline；L2：Second pipe；
L3：3rd pipeline；L4：4th pipeline.
Embodiment
The object of the present invention is to provide a kind of inert gas protection system of activated carbon adsorber.
According to the present invention, there is provided the inert gas protection system of activated carbon adsorber, it includes adsorption tower 1, according to flue gas
Flow direction, 1 one side lower part of adsorption tower are equipped with smoke inlet 2, and 1 another upper lateral part of adsorption tower is equipped with exhanst gas outlet 3, its feature exists
In：Double baffle doors 4 are provided with the smoke inlet 2 of adsorption tower 1, single baffle door 5 is provided with the exhanst gas outlet 3 of adsorption tower 1,
The latter end that the bottom of towe of adsorption tower 1 is connected with the first pipeline L1, the first pipeline L1 is equipped with the first valve 6, before second pipe L2
End and the first pipeline L1 connections and the space company between the rear end of second pipe L2 and former and later two baffle doors of double baffle doors 4
Logical, second pipe L2 is equipped with the second valve 7, and the front end of the 3rd pipeline L3 is connected on the first pipeline L1 and the tie point position
Between second pipe L2 and the first valve 6, and the rear end of the 3rd pipeline L3 and the downstream of double baffle doors 4 of smoke inlet 2 are empty
Between connect, the 3rd pipeline L3 is equipped with the 3rd valve 8, downstream positions and threeth pipeline L3 of the 4th pipeline L4 in the 3rd valve 8
It is connected, the 4th pipeline L4 is equipped with the 4th valve 9.
It is preferred that said system further includes temperature monitor 10, temperature monitor 10 is used to monitor the temperature in adsorption tower 1.
It is preferred that the upstream end of the first pipeline L1 is connected to inert gas supply line or inert gas source of supply；It is it is preferred that lazy
Property gas be one kind in nitrogen, helium or argon gas, more preferably nitrogen.
It is preferred that the upstream end of the 4th pipeline L4 is connected to ammonia supply line or ammonia source of supply.
It is preferred that the temperature measuring probe of temperature monitor 10 is stretched into adsorption tower space through absorption tower side wall；It is preferred that
, temperature measuring probe is the temperature detector of infrared detection formula or the temperature detector of thermojunction type.
According to the present invention, a kind of inert gas shielding method of activated carbon adsorber is also provided, this method includes following step
Suddenly：
1) adsorption tower system normal operation, temperature monitor 10 monitor temperature in adsorption tower 1 in real time；
2) double baffle doors 4 are opened with single baffle door 5, and flue gas enters in adsorption tower 1 from smoke inlet 2 and from exhanst gas outlet
3 discharges；
3) the 4th valve 9 is opened, and ammonia is passed through in adsorption tower 1 by the 4th pipeline L4, while the first valve 6, the second valve
7 and the 3rd valve 8 of door is closed, and temperature monitor 10 shows 150 DEG C of temperature ＜ in adsorption tower 1 at this time；
4) when temperature in tower<At 150 DEG C, adsorption tower system runs well, still, when temperature >=150 DEG C in tower, according to
The actual temp that temperature monitor 10 is shown, operates double baffle doors 4, single baffle door 5 and each valve accordingly.
It is preferred that when temperature monitor 10 shows in adsorption tower 1 160 DEG C of temperature >=150 DEG C and ＜, the operation tool of step 4
Body is：First valve 6 is opened, and inert gas is passed through into bottom of towe via the first pipeline L1.
It is preferred that when temperature monitor 10 shows temperature >=160 DEG C in adsorption tower 1, the operation of step 4 is specially：
Double baffle doors 4 are turned off with single baffle door 5, separate flue gas, and the 4th valve 9 closes, stops being passed through ammonia into tower,
Second valve 7 is opened, and indifferent gas is passed through into the space between former and later two baffle doors of double baffle doors 4 through second pipe L2
Body, separates oxygen, and the 3rd valve 8 is opened, and inert gas is passed through into adsorption tower 1 through the 3rd pipeline L3；Preferably, opening
While second valve 7 and the 3rd valve 8, the first valve 6 is opened, and inert gas is passed through into bottom of towe via the first pipeline L1.
It is preferred that the inert gas is one kind in nitrogen, helium or argon gas, preferably nitrogen.
During flue gas purification system normal operation, double baffle doors 4 and single baffle door 5 are opened, and flue gas is passed through absorption
Tower 1；4th valve 9 is opened, and ammonia is sprayed into tower, plays denitration；First valve 6, the second valve 7, the 3rd valve 8 close
Close.Temperature monitor shows 150 DEG C of temperature ＜ in adsorption tower at this time.
When temperature >=150 DEG C in tower, the first valve 6 is opened, and bottom of towe is passed through nitrogen.Reason：Bottom of towe activated carbon is that do not have
Being contacted with flue gas, that is to say, that bottom of towe activated carbon discharges heat without normal direction flue gas, and Ruo Tanei temperature has reached 150 DEG C,
When activated carbon blanking reaches bottom of towe, temperature can higher.After the discharge of bottom of towe activated carbon rotated valve directly and atmosphere, in order to pre-
Anti- generation high temperature, or even catch fire, therefore inert gas is passed through to bottom of towe, completely cut off air, reduce activated carbon temperature.
When temperature >=160 DEG C in tower, double baffle doors 4 are closed with single baffle door 5, separate flue gas；4th valve 9 is closed,
Stop being passed through ammonia into tower, ammonia is explosibility gas；Second valve 7 is opened, and inert gas is passed through into double baffle doors,
Separate oxygen；3rd valve 8 is opened, and inert gas is sprayed into adsorption column inlet through original spray ammonia mouth.The former cigarette in inert gas edge at this time
Fate line direction passes through activity from import to outlet by active carbon bed, from bottom to up with activated carbon traffic direction phase Anticountra flow
Charcoal bed, it is achieved thereby that the omnibearing protection to active carbon bed.Using the gas leakage of adsorption column outlet list baffle door itself,
Inert gas is by single baffle gate discharge, so as to ensure that absorption tower pressure interior force will not be too high.
The system of the present invention can make inert gas well-regulated flowing in tower, play optimal cooling or extinguishing effect.
Claims (9)
1. the inert gas protection system of activated carbon adsorber, it includes adsorption tower (1), according to flow of flue gas direction, adsorption tower
(1) one side lower part is equipped with smoke inlet (2), and adsorption tower (1) another upper lateral part is equipped with exhanst gas outlet (3), it is characterised in that：Absorption
Double baffle doors (4) are provided with the smoke inlet (2) of tower (1), single baffle door is provided with the exhanst gas outlet (3) of adsorption tower (1)
(5), the first pipeline (L1) being connected with the bottom of towe of adsorption tower (1), the end of the first pipeline (L1) is equipped with the first valve (6),
The front end of second pipe (L2) be connected with the first pipeline (L1) and the rear end of second pipe (L2) and double baffle doors (4) it is front and rear
Space connection between two baffle doors, second pipe (L2) are equipped with the second valve (7), the front end connection of the 3rd pipeline (L3)
On the first pipeline (L1) and the tie point is located between second pipe (L2) and the first valve (6), and the 3rd pipeline (L3)
Rear end connected with the downstream space of double baffle doors (4) of smoke inlet (2), the 3rd pipeline (L3) is equipped with the 3rd valve (8),
4th pipeline (L4) is connected in the downstream position of the 3rd valve (8) with the 3rd pipeline (L3), and the 4th pipeline (L4) is equipped with the
Four valves (9).
2. inert gas protection system according to claim 1, it is characterised in that：The system further includes temperature monitor
(10), temperature monitor (10) is used to monitor the temperature in adsorption tower (1).
3. inert gas protection system according to claim 1 or 2, it is characterised in that：The upstream end of first pipeline (L1)
It is connected to inert gas supply line or inert gas source of supply；It is preferred that inert gas is one in nitrogen, helium or argon gas
Kind, more preferably nitrogen.
4. inert gas protection system according to any one of claim 1-3, it is characterised in that：4th pipeline (L4)
Upstream end is connected to ammonia supply line or ammonia source of supply.
5. the temperature measuring probe of system according to claim 2, wherein temperature monitor (10) is through absorption tower side wall
And stretch into adsorption tower space；Preferably, temperature measuring probe is the temperature detector or thermojunction type of infrared detection formula
Temperature detector.
6. a kind of inert gas shielding method of activated carbon adsorber, this method comprise the following steps：
1) adsorption tower system normal operation, temperature monitor (10) monitor adsorption tower (1) interior temperature in real time；
2) double baffle doors (4) are opened with single baffle door (5), and flue gas enters in adsorption tower (1) from smoke inlet (2) and from flue gas
Export (3) discharge；
3) the 4th valve (9) is opened, and ammonia is passed through in adsorption tower (1) by the 4th pipeline (L4), while the first valve (6), the
Two valves (7) and the 3rd valve (8) are closed, and temperature monitor (10) shows adsorption tower (1) interior 150 DEG C of temperature ＜ at this time；
4) when temperature in tower<At 150 DEG C, adsorption tower system runs well, still, when temperature >=150 DEG C in tower, according to temperature
The actual temp of monitor (10) display, operates double baffle doors (4), single baffle door (5) and each valve accordingly.
7. inert gas protection system application method according to claim 6, it is characterised in that：When temperature monitor (10)
When showing 160 DEG C of adsorption tower (1) interior temperature >=150 DEG C and ＜, the operation of step 4) is specially：First valve (6) is opened, via
First pipeline (L1) is passed through inert gas into bottom of towe.
8. the method according to claim 6 or 7, it is characterised in that：When temperature monitor (10) shows temperature in adsorption tower (1)
When spending >=160 DEG C, the operation of step 4) is specially：
Double baffle doors (4) are turned off with single baffle door (5), separate flue gas, and the 4th valve (9) closes, stops being passed through ammonia into tower
Gas, the second valve (7) are opened, and are led to through second pipe (L2) into the space between former and later two baffle doors of double baffle doors (4)
Enter inert gas, separate oxygen, the 3rd valve (8) is opened, and inert gas is passed through into adsorption tower (1) through the 3rd pipeline (L3)；
Preferably, while the second valve (7) and the 3rd valve (8) are opened, the first valve (6) is opened, via the first pipeline
(L1) inert gas is passed through into bottom of towe.
9. according to the method any one of claim 6-8, it is characterised in that：The inert gas for nitrogen, helium or
One kind in argon gas, preferably nitrogen.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331651A (en) * | 2018-11-29 | 2019-02-15 | 国电环境保护研究院有限公司 | A kind of shielding system and partition method of desulphurization denitration tower |
| CN111617595A (en) * | 2019-02-28 | 2020-09-04 | 中国石化工程建设有限公司 | Method for starting active coke dry adsorption purification device |
| CN112624112A (en) * | 2021-01-08 | 2021-04-09 | 湖南中冶长天节能环保技术有限公司 | Method and system for detecting high-temperature activated carbon and cooling blanking channel |
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| CN112763073A (en) * | 2021-01-08 | 2021-05-07 | 湖南中冶长天节能环保技术有限公司 | Method and system for high-temperature detection and cooling extinction of spontaneous combustion activated carbon |
| CN112758931A (en) * | 2021-01-08 | 2021-05-07 | 湖南中冶长天节能环保技术有限公司 | Method and system for high-temperature detection of activated carbon and cooling and extinguishing of spontaneous combustion activated carbon |
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| CN112834049A (en) * | 2021-01-13 | 2021-05-25 | 中冶长天国际工程有限责任公司 | Method and system for secondary detection and secondary treatment of high-temperature activated carbon |
| CN112880834A (en) * | 2021-01-13 | 2021-06-01 | 中冶长天国际工程有限责任公司 | High-temperature detection method and detection system for activated carbon in front of adsorption tower |
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