CN102930913A - Radioactive wet waste drying system - Google Patents

Radioactive wet waste drying system Download PDF

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Publication number
CN102930913A
CN102930913A CN2012104779858A CN201210477985A CN102930913A CN 102930913 A CN102930913 A CN 102930913A CN 2012104779858 A CN2012104779858 A CN 2012104779858A CN 201210477985 A CN201210477985 A CN 201210477985A CN 102930913 A CN102930913 A CN 102930913A
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CN
China
Prior art keywords
air
air inlet
drying system
radioactivity
condenser
Prior art date
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Pending
Application number
CN2012104779858A
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Chinese (zh)
Inventor
李显锋
廖能斌
唐小健
王梅
马若霞
李斌
光芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CPI Yuanda Environmental Protection Engineering Co Ltd
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CPI Yuanda Environmental Protection Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by CPI Yuanda Environmental Protection Engineering Co Ltd filed Critical CPI Yuanda Environmental Protection Engineering Co Ltd
Priority to CN2012104779858A priority Critical patent/CN102930913A/en
Publication of CN102930913A publication Critical patent/CN102930913A/en
Pending legal-status Critical Current

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  • Processing Of Solid Wastes (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention discloses a radioactive wet waste drying system which comprises a circulating fan, a drying oven device, a condenser, a condensate collection tank, a cooling fan and a filter. The air inlet of the drying oven device is connected with the air outlet of the circulating fan, and the air outlet of the drying oven device is connected with the inlet of the condenser; the outlet of the condenser is connected with the air inlets of both the condensate collection tank and the cooling fan; and the air outlet of the cooling fan is connected with the air inlet of the filter. The hot air is blown in by the circulating fan and the cooling fan and discharged out of a drying oven to dry the radioactive wet waste, and in addition, the radioactive waste gas and water discharged in the drying process are treated by the filter and the condensate collection tank, and the problem of the pollution of the radioactive waste gas and water to the environment is solved. The radioactive wet waste drying system can finish the preheating, drying and cooling processes of the radioactive wet waste automatically, is easy and convenient to operate and is highly safe.

Description

The radioactivity refuse drying system that wets
Technical field
The present invention relates to a kind of radioactive waste processing technology field, particularly the wet treatment of wastes produced process system of a kind of processing radioactivity.
Background technology
The Environmental security of nuclear waste is the key subjects concerning the nuclear energy sustainable development.Current, China implements " develop actively nuclear power " plan, and the radioactive waste that the nuclear energy industry produces must carry out appropriate processing and disposal.Requirement according to GB14569.3, the water cut of refuse must could satisfy the condition of processing or storing less than 1%, the wet refuse of radioactivity is from each factory building of nuclear island of nuclear power station and three wastes district, be mainly the soft solid waste thing of low, middle Intermediate Level Radioactive, its water cut surpasses 1%, also contains the pollutants such as micro-alcohol, detergent, acetone, kerosene in these soft solid waste things; This type of refuse need to can further be processed or store through behind the drying and processing.
In the prior art, also the wet refuse of radioactivity is not dried and to the waste gas of discharging in the drying course, the integrated apparatus that waste water is processed, simple carries out drying and processing to the wet refuse of radioactivity, and the radioactive emission waste water of drying course can cause serious pollution to environment.
Therefore need a kind ofly can carry out drying and processing, and the integrated treatment unit that can process the waste gas waste water in the drying course to the wet refuse of radioactivity, to solve the drying and processing problem of the wet refuse of radioactivity.
Summary of the invention
In view of this, the purpose of this invention is to provide the wet refuse drying system of a kind of radioactivity, it can carry out drying and processing, and can process the radioactive emission waste water that produces in the drying course etc. the wet refuse of radioactivity, and avoid environmental pollution, with the drying and processing problem of the wet refuse of better solution radioactivity.
The radioactivity of the present invention refuse drying system that wets, comprise circulating fan, bake oven device, condenser, condensed fluid collection case, air-cooler and filtrator, the air inlet of described bake oven device is connected air outlet and is connected with circulating fan, the air outlet of described bake oven device is connected import and is connected with condenser, the outlet of described condenser is connected air inlet with the condensed fluid collection case respectively and is connected with air-cooler, the air outlet of described air-cooler is connected air inlet and is connected with filtrator.
Further, the wet refuse drying system of this radioactivity also comprises gas-liquid separator, and the outlet of described condenser is connected air inlet with the condensed fluid collection case respectively by gas-liquid separator and is connected with air-cooler;
Further, described bake oven device comprises electric heater and oven body, and the air inlet of described electric heater is connected air outlet and is connected with circulating fan, and the air outlet of described electric heater is connected air inlet and is connected with oven body;
Further, be provided with extinguishing device on the described oven body;
Further, the air outlet of described oven body also is connected with the air inlet of circulating fan by pipeline.
Beneficial effect of the present invention: the radioactivity of the present invention refuse drying system that wets, it blasts hot blast and discharge oven body by circulating fan and air-cooler, and the wet refuse of radioactivity is dried; By filtrator, condensed fluid collection case the radioactive emission waste water of discharging in the drying course is processed simultaneously, solved the problem of radioactive emission contaminated wastewater environment; This drying system can be finished preheating, oven dry, the cooling procedure of the wet refuse of radioactivity automatically, and is simple to operation, safe.
Description of drawings
Fig. 1 is the wet refuse drying system process flow diagram of radioactivity of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in the figure, the present embodiment radioactivity refuse drying system that wets, comprise circulating fan 1, bake oven device 2, condenser 3, condensed fluid collection case 4, air-cooler 5 and filtrator 6, the air outlet that the air inlet of described bake oven device 2 is connected with circulating fan connects, the import that the air outlet of described bake oven device 2 is connected with condenser connects, the outlet of described condenser 3 is connected with the air inlet that condensed fluid collection case 4 is connected with air-cooler respectively, and the air inlet that the air outlet of described air-cooler 5 is connected with filtrator connects.
The course of work of the wet refuse drying system of present embodiment radioactivity is: the container that the wet refuse of radioactivity will be housed is first put into bake oven device 2, and the open cold blower fan 5 again, make and form negative pressure in the bake oven device, and the waste gas that can avoid containing radiomaterial enters atmosphere; Then the ON cycle blower fan 1, hot blast blasted and discharges bake oven device 2, by preheating and the oven dry of hot blast realization to the wet refuse of radioactivity.
In the drying course, when the condenser 3, the water vapor that contains in the hot blast is condensed from bake oven device hot blast out, and the waste water after condensing enters condensed fluid collection case 4 and is collected, and then process by other equipment, can avoid the Spent Radioactive environmental pollution by water; Radioactive emission through condenser 3 passes through filtrator 6 more simultaneously, and discharging after processing after filtration can be avoided the radioactive emission contaminated environment.
This radioactivity refuse drying system that wets can change to judge the oven dry situation by the liquid level that detects collected waste water in the condensed fluid collection case 4, and liquid level is without significant change within a certain period of time, and then radioactivity is wet dries.Native system can realize automatically controlling preheating, the drying course of the wet refuse of radioactivity by being combined with automatic control system.
After drying course finishes, close the heating arrangement of drying unit, continue ON cycle blower fan 1 and air-cooler 5, in bake oven device 1, pass into cold wind, can realize cooling off the wet refuse of radioactivity.
As the improvement to present embodiment, the wet refuse drying system of this radioactivity also comprises gas-liquid separator 7, and the outlet of described condenser 3 is connected with the air inlet that condensed fluid collection case 4 is connected with air-cooler respectively by gas-liquid separator 7; By gas-liquid separator 7, can isolate more fully the waste water that contains in the waste gas, can avoid the too high damage filtrator 6 of water cut in the waste gas, can also avoid the radioactive material contamination atmosphere that contains in the water vapor simultaneously.
As the improvement to present embodiment, described bake oven device 2 comprises electric heater 21 and oven body 22, and the air outlet that the air inlet of described electric heater 21 is connected with circulating fan connects, and the air inlet that the air outlet of described electric heater 21 is connected with oven body connects; Electric heater 21 and the structure of oven body 22 for independently separating in this structure, bake oven device 2 is simple in structure, low cost of manufacture, certainly in different embodiments, bake oven device 2 also can adopt other structure, as adopting the integrated baking oven of electric heater 21 and oven body 22, also can realize the present invention.
As the improvement to present embodiment, be provided with extinguishing device 8 on the described oven body 22, this structure can further strengthen the security of the wet refuse drying system work of this radioactivity.
As the improvement to present embodiment, the air outlet of described oven body 22 also is connected by the air inlet of pipeline with circulating fan 1; The part hot waste gas circulation that this structure is discharged oven body 22 enters in the oven body 22, makes the heat energy of part hot waste gas be repeated to utilize, and is conducive to energy savings, reduces operating cost.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (5)

1. the wet refuse drying system of a radioactivity, it is characterized in that: comprise circulating fan, bake oven device, condenser, condensed fluid collection case, air-cooler and filtrator, the air inlet of described bake oven device is connected air outlet and is connected with circulating fan, the air outlet of described bake oven device is connected import and is connected with condenser, the outlet of described condenser is connected air inlet with the condensed fluid collection case respectively and is connected with air-cooler, the air outlet of described air-cooler is connected air inlet and is connected with filtrator.
2. the wet refuse drying system of radioactivity according to claim 1 is characterized in that: also comprise gas-liquid separator, the outlet of described condenser is connected air inlet with the condensed fluid collection case respectively by gas-liquid separator and is connected with air-cooler.
3. the wet refuse drying system of radioactivity according to claim 1, it is characterized in that: described bake oven device comprises electric heater and oven body, the air inlet of described electric heater is connected air outlet and is connected with circulating fan, the air outlet of described electric heater is connected air inlet and is connected with oven body.
4. the wet refuse drying system of radioactivity according to claim 3 is characterized in that: be provided with extinguishing device on the described oven body.
5. the wet refuse drying system of radioactivity according to claim 3, it is characterized in that: the air outlet of described oven body also is connected with the air inlet of circulating fan by pipeline.
CN2012104779858A 2012-11-22 2012-11-22 Radioactive wet waste drying system Pending CN102930913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104779858A CN102930913A (en) 2012-11-22 2012-11-22 Radioactive wet waste drying system

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Application Number Priority Date Filing Date Title
CN2012104779858A CN102930913A (en) 2012-11-22 2012-11-22 Radioactive wet waste drying system

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CN102930913A true CN102930913A (en) 2013-02-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110648778A (en) * 2019-05-20 2020-01-03 中国核动力研究设计院 Radioactive waste liquid filter treatment device and process
CN112289475A (en) * 2020-10-29 2021-01-29 江苏中海华核环保有限公司 Device and method for cleaning and controlling radioactive waste resin

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011040554A1 (en) * 2009-09-30 2011-04-07 住友大阪セメント株式会社 Exhaust gas purification filter
CN102237150A (en) * 2010-04-22 2011-11-09 中国核动力研究设计院 14C absorption device for nuclear reactor waste gas treatment
CN102708940A (en) * 2012-05-21 2012-10-03 浙江博凡动力装备有限公司 Wet waste drying device for nuclear power plant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011040554A1 (en) * 2009-09-30 2011-04-07 住友大阪セメント株式会社 Exhaust gas purification filter
CN102237150A (en) * 2010-04-22 2011-11-09 中国核动力研究设计院 14C absorption device for nuclear reactor waste gas treatment
CN102708940A (en) * 2012-05-21 2012-10-03 浙江博凡动力装备有限公司 Wet waste drying device for nuclear power plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110648778A (en) * 2019-05-20 2020-01-03 中国核动力研究设计院 Radioactive waste liquid filter treatment device and process
CN112289475A (en) * 2020-10-29 2021-01-29 江苏中海华核环保有限公司 Device and method for cleaning and controlling radioactive waste resin

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Application publication date: 20130213