阅读说明：本技术 放射性浓缩液的处理方法 (The processing method of radioactivity concentrate ) 是由 张志银 高瑞发 刘铁军 王艺霖 张敬辉 田思思 于 2019-08-05 设计创作，主要内容包括：本发明公开了一种放射性浓缩液的处理方法,包括以下步骤：将放射性浓缩液输送到包装桶内；对包装桶进行加热,包装桶内的放射性浓缩液蒸发,得到放射性固体物料(如盐饼)；将盛有放射性固体物料(如盐饼)的包装桶,装入到高完整性容器内。本发明中的处理方法使得放射性浓缩液的减容比达到6～8,相比传统水泥固化工艺(增容过程)提高10倍以上,本发明利用包装桶作为蒸发的容器,放射性固体物料可以直接在包装桶内形成,其与包装桶一起装入高完整性容器内,避免了放射性固体物料在装卸过程中的泄漏问题(如产生放射性粉尘,气溶胶等),便于后续的放射性固体物料的运输和处置,提高核电厂的废物最小化水平,减少放射性固体废物对环境的影响。(The invention discloses a kind of processing methods of radioactivity concentrate, comprising the following steps: radioactivity concentrate is transported in pail pack；Pail pack is heated, the radioactivity concentrate evaporation in pail pack obtains solid radiation material (such as salt-cake)；The pail pack that solid radiation material (such as salt-cake) will be filled is encased in high integrality container.Processing method in the present invention makes the volume reduction ratio of radioactivity concentrate reach 6~8, 10 times or more are improved compared to traditional cement curing process (capacity increasing process), the present invention is using pail pack as the container of evaporation, solid radiation material can be formed directly in pail pack, it is packed into high integrality container together with pail pack, leakage problem of the solid radiation material in cargo handling process is avoided (as generated radioactive dust, aerosol etc.), convenient for the transport and disposition of subsequent solid radiation material, the waste for improving nuclear power plant minimizes level, reduce influence of the radioactive solid waste to environment.)

1. a kind of processing method of radioactivity concentrate, which comprises the following steps:

Radioactivity concentrate is transported in pail pack；

Pail pack is heated, the radioactivity concentrate evaporation in pail pack obtains solid radiation material；

The pail pack of solid radiation material will be filled, is encased in high integrality container.

2. the processing method of radioactivity concentrate according to claim 1, which is characterized in that the step to pail pack into When row heating, the pressure in pail pack is tiny structure.

3. the processing method of radioactivity concentrate according to claim 1, which is characterized in that the step will fill radiation Property solid material pail pack, further comprise the steps of: before being encased in high integrality container to the solid radiation object in pail pack Material is dried.

4. the processing method of radioactivity concentrate according to claim 1, which is characterized in that further comprising the steps of: logical It crosses purification device and gas-liquid separation is carried out to the exhaust of the pail pack of heating, the liquid that gas-liquid separation goes out is flow back into pail pack, will The gas that gas-liquid separation goes out is passed through condensing unit and is condensed, to condensation and separation of liquid be collected, pass through condensing unit Condensation and separation of fixed gas.

5. the processing method of radioactivity concentrate according to claim 1, which is characterized in that the condition of the heating stepses Are as follows: heating temperature is 50~300 DEG C.

6. the processing method of radioactivity concentrate according to claim 1, which is characterized in that the step to pail pack into Row heating specifically: one or several regions of pail pack are heated, heating region is part pail pack.

7. the processing method of radioactivity concentrate described in any one according to claim 1~6, which is characterized in that the step Suddenly radioactivity concentrate is transported in pail pack specifically: radioactivity concentrate is delivered continuously to by packaging by metering device In bucket, alternatively, by metering device every time in preset volume transportation to pail pack.

8. the processing method of radioactivity concentrate described in any one according to claim 1~6, which is characterized in that the step Suddenly pail pack is heated specifically: heated by any one in electric heater unit, hot-air, hot oil.

9. the processing method of radioactivity concentrate described in any one according to claim 1~6, which is characterized in that packaging Bucket carries out the condition of heating end are as follows: liquid level, solid radiation material water ratio, temperature, delivery temperature, exhaust in pail pack One or several in humidity reach preset requirement condition.

10. the processing method of radioactivity concentrate described in any one according to claim 1~6, which is characterized in that pail pack Material be thermally conductive metal.

Technical field

The invention belongs to Radwastes treatment technical fields, and in particular to a kind of processing method of radioactivity concentrate.

Background technique

In PWR nuclear power plant, when radioactive liquid waste activity concentration be more than emission limit, filtered can not still discharge or Chemical impurity content is high, and when can not handle using desalination device, concentration, the condensation that evaporator generates can be evaporated using evaporator Liquid monitoring discharge, evaporation concentrated solution contain higher salinity and most of radionuclide, are solidified or used Other modes processing.Currently, domestic in-service nuclear power plant uses the concentration of low, the middle radioactive level of cement solidification process Liquid, waste increase-volume is larger, and the temporary and final disposal to waste packet in nuclear power plant all causes certain pressure.

Summary of the invention

The technical problem to be solved by the present invention is to aiming at the above shortcomings existing in the prior art, provide a kind of radioactivity The processing method of concentrate, radioactivity concentrate evaporative crystallization in pail pack form solid salt block, solid radiation material (ratio Such as salt-cake) it is packed into together with pail pack in high integrality container, it effectively prevents solid radiation material (such as salt-cake) and is filling Leakage problem during unloading can be improved the waste of nuclear power plant convenient for the transport and disposition of subsequent solid radiation material It minimizes horizontal.

The processing method that technical solution used by present invention problem is to provide a kind of radioactivity concentrate is solved, packet Include following steps:

Radioactivity concentrate is transported in pail pack；

Pail pack is heated, the radioactivity concentrate evaporation in pail pack obtains solid radiation material；

The pail pack of solid radiation material will be filled, is encased in high integrality container.

Preferably, solid radiation material is crystal salt.

Preferably, when the step heats pail pack, the pressure in pail pack is tiny structure.

Preferably, the step will fill the pail pack of solid radiation material, before being encased in high integrality container It further comprises the steps of: and the solid radiation material in pail pack is dried.

Preferably, the processing method of the radioactivity concentrate, it is further comprising the steps of: by purification device to adding The exhaust of the pail pack of heat carries out gas-liquid separation, and the liquid that gas-liquid separation goes out is flow back into pail pack, the gas that gas-liquid separation is gone out Body is passed through condensing unit and is condensed, to condensation and separation of liquid be collected, by condensing unit condensation and separation of not coagulating Gas.

Preferably, the condition of the heating stepses are as follows: heating temperature is 50~300 DEG C.

Preferably, the step heats pail pack specifically: one or several regions of pail pack are heated, Heating region is part pail pack.

Preferably, radioactivity concentrate is transported in pail pack by the step specifically: will be put by metering device Penetrating property concentrate is delivered continuously in pail pack, alternatively, by metering device every time in preset volume transportation to pail pack.

Preferably, the step heats pail pack specifically: by electric heater unit, hot-air, hot oil Any one heated.

Preferably, the condition of heating end is carried out to pail pack are as follows: liquid level, solid radiation material in pail pack contain Water rate, temperature, delivery temperature, one or several in exhaust steam moisture reach preset requirement condition.

Preferably, the material of pail pack is thermally conductive metal.

The processing method of radioactivity concentrate in the present invention is so that the volume reduction ratio of radioactivity concentrate reaches 6~8 10 times of raising or more of traditional cement curing process (capacity increasing process), the present invention are evaporated using pail pack as radioactivity concentrate Container, solid radiation material (such as salt-cake) can directly be used as packing container pail pack in be formed, radioactive solid Body material (such as salt-cake) is packed into high integrality container together with pail pack, is effectively prevented solid radiation material and is being loaded and unloaded Leakage problem in the process can be improved the waste of nuclear power plant most convenient for the transport and disposition of subsequent solid radiation material Smallization is horizontal, reduces influence of the radioactive solid waste to environment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the processing system of the radioactivity concentrate in the embodiment of the present invention 2.

In figure: 1- surge tank；2- metering device；3- valve；4- pail pack；5- barrels of ontologies；6- seals bung；7- heating dress It sets；8- purification device；9- condensing unit；The first valve of 10-；11- condensate liquid receiving slit；The second valve of 12-；13- third valve； 14- blower；15- regulating valve；The 4th valve of 16-.

Specific embodiment

Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party Present invention is further described in detail for formula.

The embodiment of this patent is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining this patent, and cannot be understood as a limitation of this patent.