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Fiber material folding iodine adsorber

A fiber material, iodine adsorber technology, applied in chemical instruments and methods, gas treatment, membrane technology, etc., to achieve the effect of improving dispersion, easy waste disposal, and light weight

Pending Publication Date: 2019-12-17
CHINA INST FOR RADIATION PROTECTION
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, the ventilation system or radioactive gas treatment system of nuclear power plants or other nuclear facilities uses iodine adsorbers filled with impregnated granular activated carbon to absorb and purify radioactive iodine (including radioactive iodine compounds such as elemental iodine and organic iodine). These impregnated granular activated carbon iodine adsorbers are based on The total amount of radioactive substances filtered or adsorbed is divided into different types of radioactive waste for corresponding treatment and final disposal, and final waste disposal costs are generated

Method used

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  • Fiber material folding iodine adsorber

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Embodiment Construction

[0015] Such as figure 1 As shown, a fiber material folding iodine adsorber includes an adsorber housing 1, the two sides of the adsorber housing 1 are respectively equipped with an air inlet 2 and an air outlet 3, and the inner cavity of the adsorber housing 1 is provided with Fiber material pleated filter element, fiber material pleated filter element includes a plurality of adsorption layers 4 arranged in the adsorber housing 1 and connected to the inner wall of the adsorber housing 1 at both ends, and the adjacent adsorption layers 4 are reinforced by support plates 5 support.

[0016] Further, the material of the adsorption layer 4 is porous carbon fiber filter paper material, the adsorption layer 4 is composed of folded multi-layer porous carbon fiber filter paper, the adsorption layer 4 is impregnated with triethylenediamine or potassium iodide solution, and the concentration of the triethylenediamine solution is between 0.01% and 20%. , Potassium iodide solution concen...

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Abstract

The invention relates to a fiber material folding iodine adsorber comprising an adsorber housing; an air inlet and an air outlet are respectively formed in two sides of the adsorber shell; a fiber material folding type filter element is arranged in an inner cavity of the adsorber shell; the fiber material folding type filter element comprises an adsorption layer formed by overlapping a plurality of layers of fiber material filter paper; filter paper is folded into a snake-bellied shape, two ends of the filter paper are bonded and sealed by a resin glue, and the adsorption layer is reinforced and supported by a supporting plate. During use, gas enters from the air inlet and penetrates through the adsorption layer, radioactive iodine in the gas is adsorbed through the adsorption layer, and the adsorbed and purified gas flows out from the air outlet. The adsorption layer is made of a porous carbon fiber filter paper material, the adsorption layer is soaked in a solution formed by triethylene diamine or potassium iodide alone or in a mixed mode according to a certain proportion, the adsorption layer has the capacity of adsorbing radioactive iodine (elemental iodine, inorganic iodide, methyl iodide, ethyl iodide and the like), and the porous carbon fiber filter paper material is light in weight and facilitates waste treatment.

Description

technical field [0001] The invention relates to iodine adsorption and purification equipment for air purification, in particular to a fibrous material folding iodine adsorber. Background technique [0002] At present, the foldable iodine adsorbers used in nuclear power plants and other nuclear facilities are generally composed of impregnated granular activated carbon fillers and outer frames, which are heavy and generate a large amount of radioactive waste after use. At present, the ventilation system or radioactive gas treatment system of nuclear power plants or other nuclear facilities uses iodine adsorbers filled with impregnated granular activated carbon to absorb and purify radioactive iodine (including radioactive iodine compounds such as elemental iodine and organic iodine). These impregnated granular activated carbon iodine adsorbers are based on The total amount of radioactive substances filtered or adsorbed is divided into different types of radioactive waste for c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
CPCB01D53/04B01D2253/102B01D2257/70B01D2258/06
Inventor 任宏正张雪平李永国王坤俊侯建荣邱继林乔太飞吴涛张群丘丹圭刘群
Owner CHINA INST FOR RADIATION PROTECTION
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