Method and device for preparing oxygen-free protective gas by removing oxygen and impurities from air

Abstract

The invention provides a method for preparing a gas by removing oxygen and impurities from air, which comprises the steps of: roasting a solid reducing agent to consume oxygen in the air; and purifying the generated gas to form a clean gas. The invention also provides a device for preparing a gas by removing oxygen and impurities from air; and the device comprises a sealed container that is full of air, an air pump, a roasting chamber, a cooling and water washing pool, a dust removal room and a pipeline. In the technical scheme of the invention, through the method and device for roasting the solid reducing agent to consume the oxygen in the air and purifying the residual gas after the oxygen is consumed, the gas that has inactive chemical properties and is used for protecting files and cultural relics is generated; and the product is simple and reliable in structure.

Description

technical field [0001] The present invention relates to the field of gas production, in particular to a method and device for preparing clean, chemically inactive gas without oxygen and other impurities to protect archival cultural relics or other article materials by using air. In this method, the reducing agent is roasted The method consumes the oxygen in the air and purifies it to produce a clean chemically inactive gas. Background technique [0002] At present, archival cultural relics are generally protected and preserved in vacuum or sealed containers filled with inert gases or other chemically inactive gases. There are also several types of protective gases, such as nitrogen, argon, CO 2 etc. They are all stored in high-pressure steel cylinders without high-temperature treatment. The oxygen cannot be removed, and there are still organic matter, bacteria (aerobic bacteria, anaerobic bacteria), viruses, dirty odors, and corrosive dust. The items are still oxidized, mil...

AI Technical Summary

Problems solved by technology

[0002] At present, archival cultural relics are generally protected and preserved in vacuum or sealed containers filled with inert gases or other chemically inactive gases. There are also several types of protective gases, such as nitrogen, argon, CO 2 etc. They are all stored in high-pressure steel cylinders without high-temperature treatment. The oxygen cannot be removed, and there are still organic matter, bacteria (aerobic bacteria, anaerobic bacteria), viruses, dirty odors, and corrosive dust. The items are still oxidized, mildewed and deteriorated, and the items cannot be protected for a long time

However, the air that removes oxygen as a chemically inactive gas is a very suitable protective gas for archival cultural relics, and there is no preparation method for this protective gas for archival cultural relics.

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