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Anti-mercury mask

A mask and ontology technology, applied in the field of anti-mercury masks, can solve problems such as harming the atmospheric environment and human health.

Active Publication Date: 2017-09-01
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many Hg-involving industry workshops, the concentration of Hg vapor is very high, and there is still no effective method to reduce the emission of mercury vapor into the atmosphere from mercury-involving industry workshops, which inevitably produces mercury vapor pollution, which seriously endangers the atmospheric environment and human health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of gauze loaded with nano-selenium

[0035] (1) First disperse 1.28g of dopamine hydrochloride in 1L of deionized water, stir evenly, stir and react with a constant temperature magnetic stirrer for 6 hours at 25°C, add a degreasing cotton gauze with a length of 50cm and a width of 10cm (gauze area is 500cm 2 ), stirring and adsorbing with a constant temperature magnetic stirrer for 1 hour at 25°C to obtain an aqueous solution of polydopamine;

[0036] (2) adding gauze to the obtained polydopamine aqueous solution and soaking for 1-2h to obtain the soaking mixture;

[0037] (3) Disperse 0.001mol (0.174g), 0.003mol (0.522g), and 0.005mol (0.87g) of sodium selenite in 1L of the impregnation mixture, stir well, and then add ascorbic acid 0.002mol (0.352g) respectively g), 0.004mol (0.704g), 0.01mol (1.76g) were reacted for 1h to allow the nano-selenium to fully adhere to the gauze to obtain a chemically synthesized nano-selenium-loaded gauze. The appearance of...

Embodiment 2

[0040] A kind of anti-mercury mouth mask, comprises mouth mask body, is connected with the mouth mask body and is used for the hook hanger that is hung on the ear, is provided with HEPA filter cotton in the described mouth mask body, is characterized in that, also is provided with in the described mouth mask body Five layers of gauze loaded with nano-selenium, the gauze loaded with nano-selenium is wrapped on the outside of the HEPA filter cotton.

[0041] The size of the mercury-proof mask is 12cm long, 10cm wide, and 2cm thick.

[0042] Specific detection method and evaluation of mercury vapor removal effect

[0043] Open the initial concentration of mercury vapor is 20000ng / m 3 For the valve of the storage tank 1 containing mercury vapor, adjust the gas flow rate of the mercury meter 4 to 1L / min, and use the mercury meter to measure continuously at intervals of 1s until the concentration no longer changes. 20cm, cross-sectional size of 12cm × 10cm rectangular parallelepip...

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Abstract

The invention discloses an anti-mercury mask, which comprises a mask body, and hook parts connected with the mask body and used for being hooked on the ears, wherein HEPA filter cotton is arranged in the mask body. The anti-mercury mask is characterized in that a single-layer or multi-layer nano-selenium-loaded gauze is also arranged in the mask body. According to the method, the nano-selenium-loaded gauze is prepared for the first time at home and abroad for removing mercury vapor in the atmosphere. The method has the advantages of being efficient and more environmentally friendly; when the initial concentration of the mercury vapor is 20000-30000ng / m<3>, the efficient mercury removal efficiency of the method is about 96-99% and the cost is reduced; and no mature long-term, stable and efficient anti-mercury mask can be used in the market at present, so that the method has great social and economic benefits.

Description

[0001] (1) Technical field [0002] The invention relates to a mercury-proof mask for workers in mercury-related industries. [0003] (2) Background technology [0004] Mercury (Hg, also known as mercury), is a highly toxic element that is extremely harmful to the human body. The famous Japanese Minamata disease incident in history was caused by Hg poisoning. Therefore, Hg has become a highly toxic pollutant for priority control. [0005] Hg is widely used in various industries, such as chemical industry, electrical industry, metallurgical casting, medical industry, military industry and other industries. In many Hg-involving industry workshops, the concentration of Hg vapor is very high, and there is still no effective method to reduce the emission of mercury vapor into the atmosphere from mercury-involving industry workshops, which inevitably produces mercury vapor pollution, which seriously endangers the atmospheric environment and human health. [0006] Therefore, there ...

Claims

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Application Information

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IPC IPC(8): A41D13/11A41D31/02B01D53/64B01D53/81D06M11/52D06M101/06
CPCA41D13/11A41D31/02B01D53/64B01D2257/602B01D2259/128D06M11/52D06M2101/06
Inventor 潘响亮易昌毓杨兰
Owner ZHEJIANG UNIV OF TECH
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