CN103700416B - A kind of sweep-out method of radioactive contamination dust - Google Patents
A kind of sweep-out method of radioactive contamination dust Download PDFInfo
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- CN103700416B CN103700416B CN201310635482.3A CN201310635482A CN103700416B CN 103700416 B CN103700416 B CN 103700416B CN 201310635482 A CN201310635482 A CN 201310635482A CN 103700416 B CN103700416 B CN 103700416B
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Abstract
Relate to a sweep-out method for the radioactive contamination dust of Radioactive decontamination processing technology field, described method adopts special flusher according to 2kg/m
2consumption special liquid state is removed the indoor being sprayed on radioactive contamination dust of homogenize material, thus reach the object effectively radioactive contamination dust being present in narrow indoor space being controlled and removed.
Description
[technical field]
The present invention relates to Radioactive decontamination processing technology field, especially relating to a kind of sweep-out method for removing 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 brings threat also to the living environment of the mankind; Because of technical reason, at nuclear facilities, nuclear fuel processing link, such as exploit, transport, process, store and the inside in the place such as nuclear waste disposal, all in various degree there is 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, thus pollute the environment of periphery; In open environment, some radioactive dusts can shift with the flowing of air, and dilute gradually in atmospheric environment, but, 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
3μm, it forms radioaerosol in atmosphere, wherein, the gasoloid being less than 0.1 μm can do Brownian movement in gas, the not sedimentation because of Action of Gravity Field, the time that gasoloid between 1 μm ~ 10 μm suspends slowly and in atmosphere because of sedimentation is relatively long, is greater than the gasoloid of 10 μm then due to the effect of gravity, can be deposited to ground very soon; Because these small radioactive dusts can enter human body with the breathing of people or diet, thus form internal radiation, therefore, it is possible to 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, but vacuum cleaning method not only efficiency is lower, dispose the cycle long, and decontamination is not thorough; Air displacement method and high efficiency filter method often again because needing to be applied to large-scale ventilation equipment and Filters, thus not only easily produce dead angle in operation, and also cannot remove for the radioactive dust being 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 can effectively carrying out controlling to the radioactive dust be present in the narrow and small interior space and remove.
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 by the indoor being sprayed on radioactive contamination dust of the removing homogenize material of liquid state, by ejection atomization removing materials adsorption and embedding air in radioactive dust; When absorption and embedding radioactive dust removing material adhesion after indoor dielectric surface, removing material can condensation cure gradually, and splinter is come off by dielectric surface, finally, then by retracting device the fragment come off is received into and carries out corresponding process in special radioactive waste reservoir vessel and namely complete clear operation;
Described flusher comprises gas cylinder, decompressor, tensimeter, flowmeter, spray gun and fluid reservoir; Described gas cylinder is communicated with fluid reservoir with spray gun with manometric airflow pipeline respectively by being provided with decompressor, 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 with the infusion pipeline of flowmeter by being provided with by-pass valve control; 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 side is provided with suction system, and opposite side is provided with the filtering recovering system be 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, is provided with high-efficiency filtration systems in filter vat, and the air inlet of filter vat is communicated with suction nozzle with the recovery tube being 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 is provided with the radiation shield bag of corresponding filter vat bottom surface opening in dust bucket.
Further, described method, when applying, when the removing material adhesion sprayed is after indoor dielectric surface, can be carried out secondary sprinkling again and cover.
Further, described gas cylinder is at least two, and each gas cylinder is all communicated with fluid reservoir with spray gun with manometric airflow pipeline by being provided with decompressor.
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 by the multistage pressure blower fan of driven by motor, whirlpool blower fan or whirlpool air pump.
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 not discharging waste gas; Method described in application can effectively control the radioactive contamination dust being present in the narrow and small interior space and remove, 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]
Can explain the present invention in more detail by the following examples, 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 will remove the indoor being sprayed on radioactive contamination dust of homogenize material in the environment of-30 ~ 50 DEG C, thus by the radioactive dust in the removing materials adsorption of the atomization of ejection and embedding air; When absorption and embedding radioactive dust removing material adhesion after indoor dielectric surface, as required, second time can be carried out at this moment and sprays covering, with by covering spraying strengthen absorption property; After sprinkling terminates, stick to dielectric surface removing material can in 6 hours condensation cure gradually, and splinter is come off by dielectric surface, finally, then by retracting device the fragment come off is received in special radioactive waste reservoir vessel and carries out corresponding process and just can complete described clear operation;
The flusher applied 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 fluid reservoir 6 with spray gun 5 with the airflow pipeline 7 of tensimeter 3 respectively by being provided with decompressor 2, and the flowmeter 4 be provided with in the airflow pipeline 7 that is communicated with spray gun 5 of gas cylinder 1 for controlling to spray air-flow, namely described device utilizes the gas cylinder 1 being convenient to control volume size to provide power as power source to spray gun 5 and fluid reservoir 6, and be reached through the object that the removing material in fluid reservoir 6 sprays away to be atomized form by spray gun 5, for ease of implementing the spraying operation of being correlated with, fluid reservoir 6 and spray gun 5 can be communicated with by being provided with by-pass valve control with the infusion pipeline 8 of flowmeter 4, for ease of controlling flow, gas cylinder 1 and the flowmeter 4 in the airflow pipeline 7 of spray gun 5 can be communicated with, and connection fluid reservoir 6 arranges corresponding by-pass valve control respectively to the flowmeter 4 in the infusion pipeline 8 of spray gun 5, as required, in described device, two gas cylinders 1 can be at least set, and be connected together corresponding for each gas cylinder 1 with spray gun 5 and fluid reservoir 6 by the airflow pipeline 7 being respectively equipped with decompressor 2 and tensimeter 3, thus reach the object that can use corresponding gas cylinder 1 in turn, simultaneously also corresponding time effectively extending spraying operation,
The removing material applied in described method is made up after mix and blend 0.5h in mass ratio of 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 film characteristic easy to crack, possesses autoclase cracking performance for making the described soiling solution that disappears; Silicasol is performance improvement additives, and it can play the effect improving and be coated with film uniformity and improve storage stability; And ethanol uses as solvent, for adjusting viscosity and dry, cracked speed, namely reach to disappear described in the raising thermal adaptability of soiling solution and the object of rate of drying; As required, described organic-silicon-modified resin can adopt self-drying type solvent-borne type silicones, such as JF-2033 type or self-drying aqueous silicones, such as JF-2061 type;
The retracting device applied in described method comprises loading carriage 9, suction system 10 and filtering recovering system; Described loading carriage 9 side is provided with suction system 10, opposite side is provided with the filtering recovering system be communicated with suction system 10 air intake opening, this suction system 10 is by the multistage pressure blower fan of driven by motor, whirlpool blower fan or whirlpool air pump, and the exhausr port of suction system 10 is provided with the gas outlet 11 being convenient to arrange discharge angle; Described filtering recovering system comprises filter vat 12 and dust bucket 16; Described filter vat 12 inwall is provided with radiation shield, in filter vat 12, high-efficiency filtration systems is installed, the air inlet of filter vat 12 is communicated with suction nozzle 14 with the recovery tube 13 being 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 opening, this radiation shield bag is close to dust bucket 16 inwall by the support corresponding with dust bucket 16 inner chamber, thus support not only can be utilized to reach the object being convenient to installing/dismounting radiation shield bag, but also the storage rate of dust bucket 16 can be made to 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 by the indoor being sprayed on radioactive contamination dust of the removing homogenize material of liquid state, by ejection atomization removing materials adsorption and embedding air in radioactive dust; When absorption and embedding radioactive dust removing material adhesion after indoor dielectric surface, removing material can condensation cure gradually, and splinter is come off by dielectric surface, finally, then by retracting device the fragment come off is received into and carries out corresponding process in special radioactive waste reservoir vessel and namely 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 fluid reservoir (6) with spray gun (5) with the airflow pipeline (7) of tensimeter (3) respectively by being provided with decompressor (2), 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) with the infusion pipeline (8) of flowmeter (4) by being provided with by-pass valve control; Described removing material by mass ratio be respectively the organic-silicon-modified resin of 40 ~ 60, the silicasol of 10 ~ 20 and 3 ~ 6 ethanol mix and blend make; Described retracting device comprises loading carriage (9), suction system (10) and filtering recovering system; Described loading carriage (9) side is provided with suction system (10), opposite side is provided with the filtering recovering system be 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 suction nozzle (14) with the recovery tube (13) being 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 is provided with the radiation shield bag of corresponding filter vat (12) bottom surface opening in dust bucket (16).
2. the sweep-out method of radioactive contamination dust according to claim 1, is characterized in that: described method, when applying, when the removing material adhesion sprayed is after indoor dielectric surface, can be carried out secondary sprinkling again and cover.
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 fluid reservoir (6) with spray gun (5) with the airflow pipeline (7) of tensimeter (3) respectively by being provided with decompressor (2).
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 by the multistage pressure blower fan of driven by motor, whirlpool blower fan or whirlpool air pump.
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.
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| 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 CN103700416A (en) | 2014-04-02 |
| CN103700416B true CN103700416B (en) | 2016-02-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565036B (en) * | 2018-02-27 | 2019-12-31 | 中国人民解放军61489部队 | Rapid removing equipment and removing method for radioactive contamination on surface of hard medium |
| CN110040370B (en) * | 2019-05-20 | 2023-07-07 | 核工业理化工程研究院 | Hand-held radioactive pollution decontaminating device |
| 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 |
| 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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