CN103700416A - Method for removing radioactive contamination dust - Google Patents
Method for removing radioactive contamination dust Download PDFInfo
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- CN103700416A CN103700416A CN201310635482.3A CN201310635482A CN103700416A CN 103700416 A CN103700416 A CN 103700416A CN 201310635482 A CN201310635482 A CN 201310635482A CN 103700416 A CN103700416 A CN 103700416A
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Abstract
The invention relates to a method for removing radioactive contamination dust in the technical field of radioactive contamination removal treatment. According to the method, a special spraying device is used for uniformly spraying 2 kilograms of special liquid removal material to every kilometer of a room with the radioactive contamination dust, so that the aim of effectively controlling and removing the radioactive contamination dust in a narrow indoor space is fulfilled.
Description
[technical field]
The present invention relates to Radioactive decontamination processing technology field, especially relate to a kind of for removing the sweep-out method of radioactive contamination dust in wall and small space.
[background technology]
Known, day by day perfect along with nuclear energy application technology, the development and utilization of nuclear energy brings huge economic benefit and social benefit to the mankind, but simultaneously, the radioactive pollutant that nuclear energy produces in application process has brought threat also to the mankind's living environment; Because of technical reason, at nuclear facilities, nuclear fuel processing link, the inside in places such as exploitation, transportation, processing, storage and nuclear waste disposal, all in various degree exist a large amount of radioactive dusts, in addition, nuclear power plant accident, the nuclear radiation attack of terrorism etc. all can produce a large amount of radioactive dusts, thereby pollute the environment of periphery; In open environment, some radioactive dusts can shift with flowing of air, and dilution gradually in atmospheric environment, still, the disposal if indoor radioactive dust does not take appropriate measures, its will long-term existence in environment;
The particle diameter of indoor radioactive dust is generally 10
-3～10
3μ m, it forms radioaerosol in air, wherein, the gasoloid that is less than 0.1 μ m can be done Brownian movement in gas, not because of Action of Gravity Field sedimentation, gasoloid between 1 μ m～10 μ m because of the time that sedimentation slowly suspends in air relatively long, the gasoloid that is greater than 10 μ m, due to the effect of gravity, can be deposited to ground very soon; Because these small radioactive dusts can enter human body with people's breathing or diet, thereby form internal radiation, therefore can cause long-term harm and impact to human body;
At present, for the disposal of indoor radioactive dust, normally adopt the methods such as vacuum cleaning, air displacement or high efficiency filter, yet vacuum cleaning method not only efficiency is lower, the disposal cycle is long, and decontamination is not thorough; Air displacement method and high efficiency filter method be often again because being applied to large-scale ventilation equipment and Filters, thereby not only easily produce in operation dead angle, and also cannot remove for the radioactive dust that is adsorbed on building surface.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses a kind of sweep-out method of the radioactive contamination dust that can effectively the radioactive dust being present in the narrow and small interior space be controlled and be removed.
For achieving the above object, the present invention adopts following technical scheme:
A sweep-out method for radioactive contamination dust, described method adopts flusher according to 2kg/m
2consumption liquid removing material is sprayed on to the indoor of radioactive contamination dust uniformly, removing material absorption and the airborne radioactive dust of embedding of the atomization by ejection; When absorption and the removing material adhesion of embedding radioactive dust are after indoor dielectric surface, remove material condensation cure gradually, and splinter is come off by dielectric surface, finally, then by retracting device the fragment coming off is received into and in special-purpose radioactive waste reservoir vessel, carries out corresponding processing and complete clear operation;
Described flusher comprises gas cylinder, decompressor, tensimeter, flowmeter, spray gun and fluid reservoir; Described gas cylinder is communicated with spray gun and fluid reservoir respectively by being provided with decompressor and manometric airflow pipeline, and is provided with flowmeter in the airflow pipeline that is communicated with spray gun of gas cylinder; Described fluid reservoir is communicated with spray gun by being provided with the infusion pipeline of by-pass valve control and flowmeter; Described removing material by organic-silicon-modified resin 40～60, silicasol 10～20 and ethanol 3～6 in mass ratio mix and blend make; Described retracting device comprises loading carriage, suction system and filtering recovering system; Described loading carriage one side is provided with suction system, and opposite side is provided with the filtering recovering system being communicated with suction system air intake opening, and the exhausr port of this suction system is provided with gas outlet; Described filtering recovering system comprises filter vat and dust bucket; Described filter vat inwall is provided with radiation shield, and high-efficiency filtration systems is installed in filter vat, and the air inlet of filter vat is communicated with the recovery tube and the suction nozzle that are provided with radiation shield, and the exhaust outlet of filter vat and the air intake opening of suction system pass through soft pipe connection; Described dust bucket is located at the below of filter vat, and in dust bucket, is provided with the radiation shield bag of corresponding filter vat bottom surface opening.
Further, described method, when application, when the removing material adhesion spraying is after indoor dielectric surface, can be carried out secondary sprinkling covering again.
Further, described gas cylinder is at least two, and each gas cylinder is all communicated with spray gun and fluid reservoir by being provided with decompressor and manometric airflow pipeline.
Further, the flowmeter in the infusion pipeline that the airflow pipeline that described gas cylinder is communicated with spray gun and fluid reservoir are communicated with spray gun is equipped with by-pass valve control
Further, described organic-silicon-modified resin is self-drying type solvent-borne type silicones or self-drying aqueous silicones.
Further, described suction system is multistage high pressure positive blower, whirlpool blower fan or the whirlpool air pump by driven by motor.
Further, described radiation shield bag is close to dust bucket inwall by corresponding support.
Owing to adopting technical scheme as above, the present invention has following beneficial effect:
The sweep-out method of radioactive contamination dust of the present invention is not only convenient to one man operation, and noise is lower in operation process, also discharging waste gas not; The described method of application can effectively be controlled and remove being present in the radioactive contamination dust of the narrow and small interior space, the clean effect of described method is good, applied widely, when the method described in the common building material surface application such as concrete, glass, marble, soil removal efficiency can reach more than 85%.
[accompanying drawing explanation]
Fig. 1 is the schematic diagram of described flusher;
Fig. 2 is the schematic diagram of described retracting device.
In figure: 1, gas cylinder; 2, decompressor; 3, tensimeter; 4, flowmeter; 5, spray gun; 6, fluid reservoir; 7, airflow pipeline; 8, infusion pipeline; 9, loading carriage; 10, suction system; 11, gas outlet; 12, filter vat; 13, recovery tube; 14, suction nozzle; 15, flexible pipe; 16, dust bucket.
[embodiment]
By the following examples, can explain in more detail the present invention, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
The sweep-out method of described radioactive contamination dust, described method adopts flusher according to 2kg/m
2consumption in the environment of-30～50 ℃, by removing material, be sprayed on uniformly the indoor of radioactive contamination dust, thereby the absorption of removing material and the airborne radioactive dust of embedding of the atomization by ejection; When absorption and the removing material adhesion of embedding radioactive dust are after indoor dielectric surface, can spray for the second time at this moment covering as required, to spray to strengthen absorption property by covering; After sprinkling finishes, stick to the removing material of dielectric surface can be in 6 hours condensation cure gradually, and splinter is come off by dielectric surface, finally, then by retracting device the fragment coming off is received into and in special-purpose radioactive waste reservoir vessel, carries out the corresponding clear operation of processing described in just can completing;
The flusher of applying in described method comprises gas cylinder 1, decompressor 2, tensimeter 3, flowmeter 4, spray gun 5 and fluid reservoir 6, described gas cylinder 1 is communicated with spray gun 5 and fluid reservoir 6 respectively by being provided with the airflow pipeline 7 of decompressor 2 and tensimeter 3, and in the airflow pipeline 7 that gas cylinder 1 is communicated with spray gun 5, be provided with the flowmeter 4 that sprays air-flow for controlling, the gas cylinder 1 that i.e. described device utilization is convenient to control volume size provides power as power source to spray gun 5 and fluid reservoir 6, and reach the object of the removing material in fluid reservoir 6 being sprayed away with atomization form by spray gun 5, for ease of implementing relevant spraying operation, can be communicated with fluid reservoir 6 and spray gun 5 by being provided with the infusion pipeline 8 of by-pass valve control and flowmeter 4, for ease of controlling flow, flowmeter 4 that can be in being communicated with the airflow pipeline 7 of gas cylinder 1 and spray gun 5, and the flowmeter 4 being communicated with in the infusion pipeline 8 of fluid reservoir 6 and spray gun 5 arranges respectively corresponding by-pass valve control, as required, in described device, two gas cylinders 1 can be at least set, and by being respectively equipped with the airflow pipeline 7 of decompressor 2 and tensimeter 3, each gas cylinder 1 correspondence is connected together with spray gun 5 and fluid reservoir 6, thereby reached the object that can use in turn corresponding gas cylinder 1, the while is the corresponding effective time that extends spraying operation also,
The removing material of applying in described method is made after mix and blend 0.5h in mass ratio by organic-silicon-modified resin 40～60, silicasol 10～20 and ethanol 3～6 in normal temperature environment, wherein, organic-silicon-modified resin is film forming matter, it has quick-drying and the characteristic easy to crack of filming, for making the described soiling solution that disappears possess autoclase cracking performance; Silicasol is performance improvement additives, and it can play and improve the effect that is coated with film uniformity and improves storage stability; And ethanol is used as solvent, for adjusting viscosity and dry, cracked speed, reach the object of thermal adaptability and the rate of drying of the soiling solution that disappears described in raising; As required, described organic-silicon-modified resin can adopt self-drying type solvent-borne type silicones, for example JF-2033 type or self-drying aqueous silicones, for example JF-2061 type;
The retracting device of applying in described method comprises loading carriage 9, suction system 10 and filtering recovering system; Described loading carriage 9 one sides are provided with suction system 10, opposite side is provided with the filtering recovering system being communicated with suction system 10 air intake openings, this suction system 10 is multistage high pressure positive blower, whirlpool blower fan or the whirlpool air pump by driven by motor, and the exhausr port of suction system 10 is provided with the gas outlet 11 of being convenient to arrange discharge angle; Described filtering recovering system comprises filter vat 12 and dust bucket 16; Described filter vat 12 inwalls are provided with radiation shield, in filter vat 12, high-efficiency filtration systems is installed, the air inlet of filter vat 12 is communicated with the recovery tube 13 and the suction nozzle 14 that are provided with radiation shield, and the exhaust outlet of filter vat 12 is communicated with by flexible pipe 15 with the air intake opening of suction system 10; Described dust bucket 16 is located at the below of filter vat 12, and in dust bucket 16, be provided with the radiation shield bag of corresponding filter vat 12 bottom surface openings, this radiation shield bag is close to dust bucket 16 inwalls by the support corresponding with dust bucket 16 inner chambers, thereby not only can utilize support to reach the object of being convenient to installing/dismounting radiation shield bag, but also can make the rate of taking in of dust bucket 16 reach maximization.
Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.
Claims (7)
1. a sweep-out method for radioactive contamination dust, is characterized in that: described method adopts flusher according to 2kg/m
2consumption liquid removing material is sprayed on to the indoor of radioactive contamination dust uniformly, removing material absorption and the airborne radioactive dust of embedding of the atomization by ejection; When absorption and the removing material adhesion of embedding radioactive dust are after indoor dielectric surface, remove material condensation cure gradually, and splinter is come off by dielectric surface, finally, then by retracting device the fragment coming off is received into and in special-purpose radioactive waste reservoir vessel, carries out corresponding processing and complete clear operation;
Described flusher comprises gas cylinder (1), decompressor (2), tensimeter (3), flowmeter (4), spray gun (5) and fluid reservoir (6); Described gas cylinder (1) is communicated with spray gun (5) and fluid reservoir (6) respectively by being provided with the airflow pipeline (7) of decompressor (2) and tensimeter (3), and is provided with flowmeter (4) in the airflow pipeline (7) that is communicated with spray gun (5) of gas cylinder (1); Described fluid reservoir (6) is communicated with spray gun (5) by being provided with the infusion pipeline (8) of by-pass valve control and flowmeter (4); Described removing material by organic-silicon-modified resin 40～60, silicasol 10～20 and ethanol 3～6 in mass ratio mix and blend make; Described retracting device comprises loading carriage (9), suction system (10) and filtering recovering system; Described loading carriage (9) one sides are provided with suction system (10), and opposite side is provided with the filtering recovering system being communicated with suction system (10) air intake opening, and the exhausr port of this suction system (10) is provided with gas outlet (11); Described filtering recovering system comprises filter vat (12) and dust bucket (16); Described filter vat (12) inwall is provided with radiation shield, filter vat is provided with high-efficiency filtration systems in (12), the air inlet of filter vat (12) is communicated with the recovery tube (13) and the suction nozzle (14) that are provided with radiation shield, and the exhaust outlet of filter vat (12) is communicated with by flexible pipe (15) with the air intake opening of suction system (10); Described dust bucket (16) is located at the below of filter vat (12), and in dust bucket (16), is provided with the radiation shield bag of corresponding filter vat (12) bottom surface opening.
2. the sweep-out method of radioactive contamination dust according to claim 1, is characterized in that: described method, when application, when the removing material adhesion spraying is after indoor dielectric surface, can be carried out secondary sprinkling covering again.
3. the sweep-out method of radioactive contamination dust according to claim 1, it is characterized in that: described gas cylinder (1) is at least two, and each gas cylinder (1) is all communicated with respectively with spray gun (5) and fluid reservoir (6) by being provided with the airflow pipeline (7) of decompressor (2) and tensimeter (3).
4. the sweep-out method of radioactive contamination dust according to claim 1, is characterized in that: the flowmeter (4) in the infusion pipeline (8) that the airflow pipeline (7) that described gas cylinder (1) is communicated with spray gun (5) and fluid reservoir (6) are communicated with spray gun (5) is equipped with by-pass valve control.
5. the sweep-out method of radioactive contamination dust according to claim 1, is characterized in that: described organic-silicon-modified resin is self-drying type solvent-borne type silicones or self-drying aqueous silicones.
6. the sweep-out method of radioactive contamination dust according to claim 1, is characterized in that: described suction system (10) is multistage high pressure positive blower, whirlpool blower fan or whirlpool air pump by driven by motor.
7. the sweep-out method of radioactive contamination dust according to claim 1, is characterized in that: described radiation shield bag is close to dust bucket (16) inwall by corresponding support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635482.3A CN103700416B (en) | 2013-12-03 | 2013-12-03 | A kind of sweep-out method of radioactive contamination dust |
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|---|---|---|---|
| CN201310635482.3A CN103700416B (en) | 2013-12-03 | 2013-12-03 | A kind of sweep-out method of radioactive contamination dust |
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| CN103700416A true CN103700416A (en) | 2014-04-02 |
| CN103700416B CN103700416B (en) | 2016-02-03 |
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| CN201310635482.3A Expired - Fee Related CN103700416B (en) | 2013-12-03 | 2013-12-03 | A kind of sweep-out method of radioactive contamination dust |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565036A (en) * | 2018-02-27 | 2018-09-21 | 中国人民解放军61489部队 | Equipment and sweep-out method are quickly removed in a kind of hard dielectric surface radioactive contamination |
| CN110018281A (en) * | 2019-05-20 | 2019-07-16 | 华核（天津）新技术开发有限公司 | Radioactive decontamination efficiency test device |
| CN110040370A (en) * | 2019-05-20 | 2019-07-23 | 华核（天津）新技术开发有限公司 | Hand-held radiation contact scar decontamination plant |
| CN110491540A (en) * | 2019-08-23 | 2019-11-22 | 北京航天国环技术有限公司 | A kind of processing method of radioactive waste |
| CN110853789A (en) * | 2020-01-13 | 2020-02-28 | 华核（天津）新技术开发有限公司 | Electric radioactive pollution decontamination device and emergency guarantee system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565036A (en) * | 2018-02-27 | 2018-09-21 | 中国人民解放军61489部队 | Equipment and sweep-out method are quickly removed in a kind of hard dielectric surface radioactive contamination |
| CN110018281A (en) * | 2019-05-20 | 2019-07-16 | 华核（天津）新技术开发有限公司 | Radioactive decontamination efficiency test device |
| CN110040370A (en) * | 2019-05-20 | 2019-07-23 | 华核（天津）新技术开发有限公司 | Hand-held radiation contact scar decontamination plant |
| CN110491540A (en) * | 2019-08-23 | 2019-11-22 | 北京航天国环技术有限公司 | A kind of processing method of radioactive waste |
| CN110491540B (en) * | 2019-08-23 | 2021-04-23 | 北京航天国环技术有限公司 | Method for treating radioactive waste |
| CN110853789A (en) * | 2020-01-13 | 2020-02-28 | 华核（天津）新技术开发有限公司 | Electric radioactive pollution decontamination device and emergency guarantee system |
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| CN103700416B (en) | 2016-02-03 |
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Granted publication date: 20160203 Termination date: 20171203 |