CN106563412A - Regeneration method used for activated carbon of delay bed of nuclear power station - Google Patents
Regeneration method used for activated carbon of delay bed of nuclear power station Download PDFInfo
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- CN106563412A CN106563412A CN201510649405.2A CN201510649405A CN106563412A CN 106563412 A CN106563412 A CN 106563412A CN 201510649405 A CN201510649405 A CN 201510649405A CN 106563412 A CN106563412 A CN 106563412A
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- CN
- China
- Prior art keywords
- activated carbon
- exsiccator
- dolly
- dried
- nuclear power
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Abstract
The invention belongs to the technical field of activated carbon regeneration, and particularly relates to a regeneration method used for the activated carbon of the delay bed of a nuclear power station. The method comprises the following steps of: a negative-pressure fan is started to keep a negative pressure shed at negative pressure; the activated carbon is put into a tray, and the tray is put into a trolley to monitor a dust amount in a room; the trolley with the activated carbon is pushed into a dryer to be heated and cooled; the trolley with the activated carbon is pushed out of the dryer, an iron bucket is filled with the dried activated carbon for sealing and storage to finish the activated carbon regeneration. By use of the method, on a premise that the safety of radioactive substance releasing, dust explosion, internal exposure and the like can be effectively controlled, the moisture content of the activated carbon is lowered, the adsorption coefficients of krypton and xenon by the activated carbon are improved, and the adsorption performance of the activated carbon can be recovered to an original level.
Description
Technical field
The invention belongs to active carbon regenerating technology field, and in particular to a kind of to be detained bed activity for nuclear power station
The renovation process of charcoal.
Background technology
Perform in nuclear power station exhaust treatment system in the direct current discharge design system of radgass remove function
It is detained bed and is detained the radgass such as krypton, xenon by the way of activated carbon adsorption, when the water content of activated carbon
During rising, activated carbon can decline to the adsorption system of krypton and xenon, when water content is raised to a certain extent,
The adsorption coefficient of activated carbon will can not meet the original design requirement of system.Such as by the activated carbon of hydraulic performance decline more
Change, substantial amounts of radwaste will be produced, processing cost is higher.
Therefore, need a kind of method that activated carbon larger to water capacity is dried badly, for improving activity
The absorption property of charcoal so as to reach again design requirement.
The content of the invention
The technical problem to be solved in the invention is：Proposition is a kind of to be detained bed activated carbon again for nuclear power station
Generation method, water content larger activated carbon is dried so as to which absorption property recovers previous level.
Technical scheme is as described below：
A kind of renovation process for being detained bed activated carbon for nuclear power station, is realized by following steps：
Step 1
Start negative-pressure air fan, keep negative pressure canopy negative pressure；
Step 2
Activated carbon is loaded in pallet, and pallet is put on dolly, in separated in time monitoring room
Dust Capacity；
Step 3
By several propulsion exsiccator heating of dolly equipped with activated carbon；
Step 4
After activated carbon is dried certain hour in exsiccator, stops exsiccator heating function, cooled down；
Step 5
Activated carbon dolly is released into exsiccator, it is by dried activated carbon loaded on sealing preserve in metal bucket, complete
Viability charcoal regeneration.
A kind of renovation process for being detained bed activated carbon for nuclear power station, can also be realized by following steps：
Step 1
Start negative-pressure air fan, keep negative pressure canopy negative pressure；
Step 2
Activated carbon is loaded in pallet, and pallet is put on dolly, in separated in time monitoring room
Dust Capacity；
Step 3
For several dollies equipped with activated carbon, by the part propulsion exsiccator of the dolly equipped with activated carbon
Heating；Dolly of the another part equipped with activated carbon is stand-by；
Step 4
After activated carbon is dried certain hour in exsiccator, stops exsiccator heating function, cooled down；
Step 5
Activated carbon dolly is released into exsiccator, by dried activated carbon loaded on sealing preserve in metal bucket；
Step 6
The propulsion exsiccator of the dolly equipped with activated carbon stand-by in step 3 is heated, repeat step
4-5, until all regenerating active carbons are disposed.
Preferably：
In step 2, the Dust Capacity in a room, inspection are monitored using dust monitoring instrument per 0.5 hour
Fire check is carried out while surveying Dust Capacity；
In step 3, exsiccator is maintained at 130 DEG C using circulation heating power bellows, baking temperature；
In step 4, after activated carbon is dried 3 hours in exsiccator, cooled down using systematic air flow；
In step 5, when in exsiccator, temperature is reduced to 110 DEG C, half-open exsiccator door, after 3 minutes
Standard-sized sheet exsiccator door, dried activated carbon dolly is released.
As further preferred version：
Room air continuous sampling is carried out using aerosol monitoring instrument, the outer radioactivity gas of monitoring negative pressure canopy is molten
The content of glue, when Dust Capacity is exceeded and radioaerosol content is up to limit value, stops living immediately
The reproduction operation of property charcoal, carries out room decontamination.
Beneficial effects of the present invention are：
(1) a kind of renovation process for being detained bed activated carbon for nuclear power station of the invention, puts in effective control
On the premise of the safety such as penetrating property substance release, dust explosion, interior irradiation, the water capacity of activated carbon is reduced,
Activated carbon is improve to krypton and the adsorption coefficient of xenon so as to which absorption property recovers previous level；
(2) a kind of renovation process for being detained bed activated carbon for nuclear power station of the invention, using circulation heating power
Baking temperature is maintained at 130 DEG C and is continued drying out by bellows；
(3) a kind of renovation process for being detained bed activated carbon for nuclear power station of the invention, negative pressure canopy and purification
Dolly is set up vacuum cavitations radioactive substance and is purified, and can effectively prevent the external world of radioactive substance
Release；
(4) a kind of renovation process for being detained bed activated carbon for nuclear power station of the invention, using dust monitoring
Instrument monitors room dust content, realizes the diffusing capacity of monitoring dust closely, prevents dust explosion；
(5) a kind of renovation process for being detained bed activated carbon for nuclear power station of the invention, is supervised using aerosol
Surveying instrument carries out room air continuous sampling, realizes the content of the outer radioaerosol of monitoring negative pressure canopy, when
When radioaerosol content is higher than background valuess, stop the reproduction operation of activated carbon immediately, carry out room net
Change, prevent radioactivity from spreading, effectively ensure that the safety of reproduction operation.
Specific embodiment
A kind of renovation process for being detained bed activated carbon for nuclear power station of the present invention is entered with reference to embodiment
Row is described in detail.
Embodiment 1
A kind of renovation process for being detained bed activated carbon for nuclear power station in the present embodiment, comprises the following steps：
Step 1
Start negative-pressure air fan, keep negative pressure canopy negative pressure.
Step 2
Activated carbon is loaded in pallet, and pallet is put on dolly, in separated in time monitoring room
Dust Capacity.In the present embodiment, the powder in a room is monitored using dust monitoring instrument per 0.5 hour
Dust quantity, carries out fire check while monitoring Dust Capacity.
Step 3
By several propulsion exsiccators of dolly equipped with activated carbon, exsiccator door is closed, is started exsiccator and is added
Heat.In the present embodiment, exsiccator is maintained at 130 DEG C using circulation heating power bellows, baking temperature.
Step 4
After activated carbon is dried certain hour in exsiccator, stop exsiccator heating function, using system wind
Amount is cooled down.In the present embodiment, activated carbon is dried 3 hours in exsiccator.
Step 5
When in exsiccator temperature be reduced to 110 DEG C and it is following when, half-open exsiccator door is complete after about 3 minutes
Exsiccator door is opened, dried activated carbon dolly is released, by dried activated carbon loaded on close in metal bucket
Envelope is preserved, and completes regenerating active carbon.
Embodiment 2
A kind of renovation process for being detained bed activated carbon for nuclear power station in the present embodiment, comprises the following steps：
Step 1
Start negative-pressure air fan, keep negative pressure canopy negative pressure.
Step 2
Activated carbon is loaded in pallet, and pallet is put on dolly, in separated in time monitoring room
Dust Capacity.In the present embodiment, the powder in a room is monitored using dust monitoring instrument per 0.5 hour
Dust quantity, carries out fire check while monitoring Dust Capacity.
Step 3
For several dollies equipped with activated carbon, by the part propulsion exsiccator of the dolly equipped with activated carbon,
Exsiccator door is closed, starts exsiccator heating；Dolly of the another part equipped with activated carbon is stand-by.
Step 4
After activated carbon is dried certain hour in exsiccator, stop exsiccator heating function, using system wind
Amount is cooled down.
Step 5
When in exsiccator temperature be reduced to 110 DEG C and it is following when, half-open exsiccator door is complete after about 3 minutes
Exsiccator door is opened, dried activated carbon dolly is released, by dried activated carbon loaded on close in metal bucket
Envelope is preserved.
Step 6
The propulsion exsiccator of the dolly equipped with activated carbon stand-by in step 3 is dried into heating, repeats to walk
Rapid 4-5, until all regenerating active carbons are disposed.
Embodiment 3
The present embodiment with the difference of above-mentioned two embodiment is：Carried out in room using aerosol monitoring instrument
Air continuous sampling, realizes the content of the outer radioaerosol of monitoring negative pressure canopy, when radioaerosol contains
When amount is higher than background, stop the reproduction operation of activated carbon immediately, carry out room decontamination, prevent radioactivity from expanding
Dissipate.
Claims (4)
1. it is a kind of for nuclear power station be detained bed activated carbon renovation process, it is characterised in that：Including following step
Suddenly：
Step 1
Start negative-pressure air fan, keep negative pressure canopy negative pressure；
Step 2
Activated carbon is loaded in pallet, and pallet is put on dolly, in separated in time monitoring room
Dust Capacity；
Step 3
By several propulsion exsiccator heating of dolly equipped with activated carbon；
Step 4
After activated carbon is dried certain hour in exsiccator, stops exsiccator heating function, cooled down；
Step 5
Activated carbon dolly is released into exsiccator, it is by dried activated carbon loaded on sealing preserve in metal bucket, complete
Viability charcoal regeneration.
2. it is a kind of for nuclear power station be detained bed activated carbon renovation process, it is characterised in that：Including following step
Suddenly：
Step 1
Start negative-pressure air fan, keep negative pressure canopy negative pressure；
Step 2
Activated carbon is loaded in pallet, and pallet is put on dolly, in separated in time monitoring room
Dust Capacity；
Step 3
For several dollies equipped with activated carbon, by the part propulsion exsiccator of the dolly equipped with activated carbon
Heating；Dolly of the another part equipped with activated carbon is stand-by；
Step 4
After activated carbon is dried certain hour in exsiccator, stops exsiccator heating function, cooled down；
Step 5
Activated carbon dolly is released into exsiccator, by dried activated carbon loaded on sealing preserve in metal bucket；
Step 6
The propulsion exsiccator of the dolly equipped with activated carbon stand-by in step 3 is heated, repeat step
4-5, until all regenerating active carbons are disposed.
3. it is according to claim 1 and 2 it is a kind of for nuclear power station be detained bed activated carbon renovation process,
It is characterized in that：
In step 2, the Dust Capacity in a room, inspection are monitored using dust monitoring instrument per 0.5 hour
Fire check is carried out while surveying Dust Capacity；
In step 3, exsiccator is maintained at 130 DEG C using circulation heating power bellows, baking temperature；
In step 4, after activated carbon is dried 3 hours in exsiccator, cooled down using systematic air flow；
In step 5, when in exsiccator, temperature is reduced to 110 DEG C, half-open exsiccator door, after 3 minutes
Standard-sized sheet exsiccator door, dried activated carbon dolly is released.
4. it is according to claim 1 and 2 it is a kind of for nuclear power station be detained bed activated carbon renovation process,
It is characterized in that：Room air continuous sampling is carried out using aerosol monitoring instrument, is put outside monitoring negative pressure canopy
The content of penetrating property aerosol, when radioaerosol content is higher than background, stops activated carbon again immediately
Raw work, carries out room decontamination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649405.2A CN106563412A (en) | 2015-10-09 | 2015-10-09 | Regeneration method used for activated carbon of delay bed of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510649405.2A CN106563412A (en) | 2015-10-09 | 2015-10-09 | Regeneration method used for activated carbon of delay bed of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106563412A true CN106563412A (en) | 2017-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510649405.2A Pending CN106563412A (en) | 2015-10-09 | 2015-10-09 | Regeneration method used for activated carbon of delay bed of nuclear power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444309A (en) * | 2018-01-29 | 2019-11-12 | 中国辐射防护研究院 | A kind of nuclear facilities radioactivity technology waste gas processing system |
| CN112755987A (en) * | 2020-12-29 | 2021-05-07 | 江苏核电有限公司 | Device for on-line vacuum drying and regeneration of activated carbon of nuclear power unit detention bed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7217401B2 (en) * | 1999-08-17 | 2007-05-15 | Wisconsin Electric Power Company | Mercury removal from activated carbon and/or fly ash |
| CN101063664A (en) * | 2006-04-27 | 2007-10-31 | 北京市射线应用研究中心 | Method and device for monitoring radioactivity artificial aerosol |
| CN103230785A (en) * | 2013-04-17 | 2013-08-07 | 浙江荣兴活性炭有限公司 | Regeneration active carbon production method |
-
2015
- 2015-10-09 CN CN201510649405.2A patent/CN106563412A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7217401B2 (en) * | 1999-08-17 | 2007-05-15 | Wisconsin Electric Power Company | Mercury removal from activated carbon and/or fly ash |
| CN101063664A (en) * | 2006-04-27 | 2007-10-31 | 北京市射线应用研究中心 | Method and device for monitoring radioactivity artificial aerosol |
| CN103230785A (en) * | 2013-04-17 | 2013-08-07 | 浙江荣兴活性炭有限公司 | Regeneration active carbon production method |
Non-Patent Citations (1)
| Title |
|---|
| 陈莉云等: ""活性炭对氪的富集条件"", 《核化学与放射化学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444309A (en) * | 2018-01-29 | 2019-11-12 | 中国辐射防护研究院 | A kind of nuclear facilities radioactivity technology waste gas processing system |
| CN112755987A (en) * | 2020-12-29 | 2021-05-07 | 江苏核电有限公司 | Device for on-line vacuum drying and regeneration of activated carbon of nuclear power unit detention bed |
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Application publication date: 20170419 |
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