CN215712170U - Radioactive wastewater filter bag and radioactive wastewater filter cartridge - Google Patents
Radioactive wastewater filter bag and radioactive wastewater filter cartridge Download PDFInfo
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- CN215712170U CN215712170U CN202122122992.3U CN202122122992U CN215712170U CN 215712170 U CN215712170 U CN 215712170U CN 202122122992 U CN202122122992 U CN 202122122992U CN 215712170 U CN215712170 U CN 215712170U
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Abstract
The utility model relates to the field of radioactive wastewater treatment, and discloses a radioactive wastewater filter bag and a radioactive wastewater filter cartridge, wherein the radioactive wastewater filter bag comprises a filter bag body and a filter interlayer, an opening is formed in the upper end of the filter bag body, the filter bag body comprises a peripheral wall part and a bottom wall part, the bottom wall part is connected to the bottom end of the peripheral wall part, the peripheral wall part is of a watertight closed structure, the bottom wall part is composed of filter cloth with a preset mesh number, the filter interlayer is arranged at the bottom in the filter bag body, the space in the filter bag body is divided into an unfiltered area and a filtered area by the filter interlayer, the filter interlayer comprises filter cotton and a radioactive adsorbent, the radioactive adsorbent can adsorb activated products in radioactive wastewater, and the radioactive wastewater in the filter bag body flows out from the bottom wall part. The radioactive wastewater filter bag is improved based on a conventional filter bag, and can effectively filter oily substances and activated products in radioactive wastewater, avoid polluting ion exchange resin in subsequent treatment and reduce the difficulty of ion exchange treatment.
Description
Technical Field
The utility model relates to the technical field of radioactive wastewater treatment, in particular to a radioactive wastewater filter bag and a radioactive wastewater filter cartridge.
Background
For radioactive waste water containing high organic matter content, the direct treatment by ion exchange technology can cause organic matter pollution of ion exchange resin, influence the service life of the radioactive waste water, and simultaneously cause the organic matter content of the discharged waste water to exceed the national legal discharge standard.
To solve this problem, radioactive wastewater needs to be pretreated. The radioactive waste water can be treated by a technical means of oxidizing organic matters and then carrying out coagulation filtration. However, if the radioactive wastewater in the technical route of redox and coagulation treatment is adopted, a large amount of sediment is generated after treatment, and the sediment needs to be filtered out of the water, and the filtered sediment generally contains high radioactivity.
Under the condition that the water quantity is not particularly large, the cloth bag filtration is an acceptable and economical filtration method, but the traditional cloth bag filtration filter bag is generally made of filter cloth with a specific mesh, the filtration effect depends on the mesh number of the filter cloth, the selectivity is absent, the effective removal of radioactive nuclide cannot be realized when the cloth bag is applied to radioactive wastewater treatment, the filtration effect is poor, and the post-treatment is difficult.
Therefore, there is a need for a radioactive waste water filter bag and a radioactive waste water filter cartridge to overcome the above technical problems.
SUMMERY OF THE UTILITY MODEL
Based on the above, the present invention aims to provide a radioactive wastewater filter bag and a radioactive wastewater filter cartridge, wherein the radioactive wastewater filter bag is improved based on a conventional filter bag, and can effectively filter oily substances and activated products in radioactive wastewater, so as to avoid polluting ion exchange resin in subsequent treatment and reduce difficulty of ion exchange treatment.
In order to achieve the purpose, the utility model adopts the following technical scheme:
on one hand, the radioactive wastewater filter bag comprises a filter bag body and a filter interlayer, wherein the upper end of the filter bag body is provided with an opening, the filter bag body comprises a peripheral wall part and a bottom wall part, the bottom wall part is connected with the bottom end of the peripheral wall part, the peripheral wall part is of a watertight closed structure, the bottom wall part is composed of filter cloth with a preset mesh number, the filtering interlayer is arranged at the bottom in the filter bag body and divides the space in the filter bag body into an unfiltered area arranged at the upper part and a filtering area arranged at the lower part, the filtering interlayer comprises filter cotton and a radioactive adsorbent, the radioactive adsorbent can adsorb an activated product in radioactive waste liquid, and liquid entering from the opening of the filter bag body sequentially flows through the unfiltered area and the filtering area and then flows out of the filter bag body from the bottom wall part.
The radioactive wastewater filter bag is improved on a conventional filter bag, on one hand, a filter interlayer is arranged in a filter bag body, oily substances which are not oxidized and decomposed in the radioactive wastewater are removed by the filter interlayer through filter cotton, ion exchange resin for subsequent treatment is prevented from being polluted, an activated product in the radioactive wastewater is adsorbed by a radioactive adsorbent, the radioactivity of filtrate is reduced, and the difficulty of subsequent ion exchange treatment is reduced; on the other hand, only set up the bottom wall portion of filter bag body bottom into the filter cloth structure that allows liquid to permeate through to same direction outflow when controlling radioactive waste water and filtering, ensure that the radioactive waste water that flows all filters interbedded filtration, and realized the filter-pressing effect, the pollutant is more, and the filter interbedded is more closely knit, and the filter effect is better.
As an alternative solution of the radioactive waste water filter bag, the radioactive adsorbent comprises at least one of zeolite and activated carbon.
As an optional technical scheme of the radioactive wastewater filter bag, the filter interlayer also comprises quartz sand.
As an optional technical scheme of the radioactive wastewater filter bag, the filter cotton is arranged at the bottommost layer of the filter interlayer.
As an optional technical scheme of the radioactive wastewater filter bag, the radioactive adsorbent and the quartz sand are stacked above the filter cotton from bottom to top according to the sequence of density from large to small.
As an optional technical scheme of the radioactive wastewater filter bag, the radioactive adsorbent is arranged above the filter cotton, and the quartz sand is arranged between the radioactive adsorbent and the filter cotton.
As an alternative solution of the radioactive wastewater filter bag, the preset mesh number of the filter cloth constituting the bottom wall part is 10-5000 meshes.
As an optional technical solution of the radioactive wastewater filter bag, the radioactive wastewater filter bag further includes at least two handles, the handles are disposed on the outer side of the peripheral wall portion, and the handles are uniformly spaced along the peripheral portion of the filter bag body.
As an alternative solution of the radioactive waste water filter bag, the radioactive waste water filter bag is arranged in a cylindrical structure.
In another aspect, a radioactive waste water filter cartridge is provided, comprising a filter cartridge and a radioactive waste water filter bag as described above, the radioactive waste water filter bag being removably attached within the filter cartridge.
The utility model has the beneficial effects that:
the radioactive wastewater filter bag provided by the utility model is improved on a conventional filter bag, on one hand, a filter interlayer is arranged in a filter bag body, oily substances which are not oxidized and decomposed in the radioactive wastewater are removed by the filter interlayer through filter cotton, the ion exchange resin for subsequent treatment is prevented from being polluted, and an activated product in the radioactive wastewater is adsorbed through a radioactive adsorbent, so that the radioactivity of a filtrate is reduced, and the difficulty of subsequent ion exchange treatment is reduced; on the other hand, only set up the bottom wall portion of filter bag body bottom into the filter cloth structure that allows liquid to permeate through to same direction outflow when controlling radioactive waste water and filtering, ensure that the radioactive waste water that flows all filters interbedded filtration, and realized the filter-pressing effect, the pollutant is more, and the filter interbedded is more closely knit, and the filter effect is better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural view of a radioactive waste water filter bag provided by the present invention.
In the figure:
1. a filter bag body; 11. a peripheral wall portion; 12. a bottom wall portion; 101. an unfiltered region; 102. a filtration zone; 2. A filtering interlayer; 3. a handle.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a radioactive wastewater filter bag which is used for pretreating radioactive wastewater before ion exchange is carried out, and is particularly suitable for radioactive wastewater with high organic matter content.
As shown in figure 1, the radioactive wastewater filter bag comprises a filter bag body 1 and a filter interlayer 2, an opening is arranged at the upper end of the filter bag body 1, the filter bag body 1 comprises a peripheral wall part 11 and a bottom wall part 12, the bottom wall part 12 is connected with the bottom end of the peripheral wall part 11, the peripheral wall part 11 is made of a water-tight material, the material is preferably waterproof cloth, the bottom wall part 12 is made of filter cloth with a preset mesh number, the filtering interlayer 2 is arranged at the bottom in the filter bag body 1, the filtering interlayer 2 divides the space in the filter bag body 1 into an unfiltered area 101 arranged at the upper part and a filtering area 102 arranged at the lower part, the filtering interlayer 2 comprises filter cotton and a radioactive adsorbent, the radioactive adsorbent can adsorb an activated product in radioactive waste liquid, and liquid entering from the opening of the filter bag body 1 flows through the unfiltered area 101 and the filtering area 102 in sequence and then flows out of the filter bag body 1 from the bottom wall part 12.
Specifically, the radioactive wastewater filter bag provided by the embodiment is improved on a conventional filter bag, on one hand, the filter interlayer 2 is arranged in the filter bag body 1, oily substances which are not oxidized and decomposed in the radioactive wastewater are removed by the filter interlayer 2 through filter cotton, ion exchange resin for subsequent treatment is prevented from being polluted, an activated product in the radioactive wastewater is adsorbed by the radioactive adsorbent, the radioactivity of a filtrate is reduced, the difficulty of subsequent ion exchange treatment is reduced, and even the radioactive wastewater can be directly discharged outside under the condition that the radioactivity level is lower than a safety standard; on the other hand, be different from the whole structure setting that can both allow filter media to pass through of conventional filter bag, radioactive waste water crosses the filter bag and only sets up the bottom wall portion 12 of filter bag body 1 bottom into the filter cloth structure that allows liquid to permeate through to flow to same direction when controlling radioactive waste water to filter, ensure that the radioactive waste water that flows all passes through the filtration of filtering intermediate layer 2, and realized the filter-pressing effect, the pollutant is more, and filtering intermediate layer 2 is compacter, and the filter effect is better.
Optionally, the radioactive adsorbent includes at least one of zeolite and activated carbon, either one of zeolite or activated carbon can be selected independently, or zeolite and activated carbon can be adopted simultaneously, and the zeolite and activated carbon are arranged in a layered manner, and the activated carbon is placed above the zeolite to enhance the strength of adsorption of activated products, thereby further reducing the radioactivity of the filtered radioactive wastewater.
Optionally, the filtering interlayer 2 further comprises quartz sand, and the addition of the quartz sand is helpful for improving the filtering precision and reducing the turbidity of the filtered radioactive wastewater.
Optionally, the filter cotton is arranged at the bottommost layer of the filter interlayer 2.
Optionally, the radioactive adsorbent and the quartz sand are stacked above the filter cotton from bottom to top in the order of decreasing density.
In this embodiment, the radioactive adsorbent is disposed above the filter cotton, and the quartz sand is disposed between the radioactive adsorbent and the filter cotton.
Alternatively, the predetermined mesh number of the filter cloth constituting the bottom wall portion 12 is 10 to 5000 meshes.
Optionally, the radioactive wastewater filter bag further includes at least two handles 3, the handles 3 are disposed outside the peripheral wall portion 11, and the handles 3 are uniformly spaced along the peripheral portion of the filter bag body 1. In the present embodiment, four handles 3 are provided at regular intervals along the peripheral portion of the filter bag body 1.
Optionally, the radioactive waste water filter bag is provided in a cylindrical structure so as to be placed in a filter cartridge for filtration.
The embodiment also provides a radioactive waste water filter cylinder, which comprises a filter cylinder and the radioactive waste water filter bag, wherein the radioactive waste water filter bag is detachably connected in the filter cylinder. The handle 3 is connected with the bottom wall part 12 of the filter bag body 1 in an enhanced mode, has certain strength, is enough to bear the weight of added filter materials, and the reinforced handle 3 is designed, so that the radioactive wastewater filter bag can be conveniently replaced, and the radioactive wastewater filter bag polluted by radioactivity is placed in a shielding barrel and is fixed.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The radioactive wastewater filter bag is characterized by comprising a filter bag body (1) and a filter interlayer (2), wherein an opening is formed in the upper end of the filter bag body (1), the filter bag body (1) comprises a peripheral wall part (11) and a bottom wall part (12), the bottom wall part (12) is connected to the bottom end of the peripheral wall part (11), the peripheral wall part (11) is of a watertight closed structure, the bottom wall part (12) is composed of filter cloth with a preset mesh number, the filter interlayer (2) is arranged at the bottom in the filter bag body (1), the filter interlayer (2) divides the space in the filter bag body (1) into an unfiltered area (101) arranged at the upper part and a filtered area (102) arranged at the lower part, the filter interlayer (2) comprises filter cotton and a radioactive adsorbent, and the radioactive adsorbent can adsorb an activated product in radioactive wastewater, liquid entering from the opening of the filter bag body (1) flows out of the filter bag body (1) from the bottom wall portion (12) after passing through the unfiltered region (101) and the filtered region (102) in sequence.
2. The radioactive wastewater filter bag of claim 1, wherein the radioactive adsorbent comprises at least one of zeolite and activated carbon.
3. The radioactive waste water filter bag according to claim 1, wherein the filter sandwich (2) further comprises quartz sand therein.
4. The radioactive waste water filter bag according to claim 3, wherein the filter cotton is provided at the lowermost layer of the filter sandwich (2).
5. The radioactive waste water filter bag according to claim 4, wherein the radioactive adsorbent and the quartz sand are stacked in order of decreasing density from bottom to top above the filter cotton.
6. The radioactive waste filter bag of claim 5, wherein said radioactive adsorbent is disposed above said filter cotton, and said quartz sand is disposed between said radioactive adsorbent and said filter cotton.
7. The radioactive waste water filter bag according to claim 1, wherein the predetermined mesh number of the filter cloth constituting the bottom wall portion (12) is 10 to 5000 mesh.
8. The radioactive waste filter bag according to claim 1, further comprising a handle (3), wherein the handle (3) is provided outside the peripheral wall portion (11), and at least two handles (3) are provided at regular intervals along the periphery of the filter bag body (1).
9. The radioactive waste filter bag of claim 1, wherein said radioactive waste filter bag is provided in a cylindrical structure.
10. A radioactive waste filter cartridge comprising a filter cartridge and the radioactive waste filter bag according to any one of claims 1 to 9, wherein the radioactive waste filter bag is detachably attached to the inside of the filter cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122992.3U CN215712170U (en) | 2021-09-03 | 2021-09-03 | Radioactive wastewater filter bag and radioactive wastewater filter cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122992.3U CN215712170U (en) | 2021-09-03 | 2021-09-03 | Radioactive wastewater filter bag and radioactive wastewater filter cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215712170U true CN215712170U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122122992.3U Active CN215712170U (en) | 2021-09-03 | 2021-09-03 | Radioactive wastewater filter bag and radioactive wastewater filter cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215712170U (en) |
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2021
- 2021-09-03 CN CN202122122992.3U patent/CN215712170U/en active Active
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