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Pressurizing, atomizing and deacidifying device and method for pressurizing, atomizing and deacidifying by using same

A pressurized atomization and deacidification technology, which is applied in the post-treatment of waste paper, can solve the problems of inconvenient operation, potential safety hazards, and accelerated photooxidation of paper fibers, and achieves convenient use and cleaning, good deacidification effect, The effect of simple process

Active Publication Date: 2014-03-12
GUANGDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the morpholine deacidification method can be scaled up and processed in batches, and has a good treatment effect, this method has an impact on the color of the collodion cover and the leather cover, making the newsprint yellow, and the treatment process cannot be reinforced, and the investment in instruments and equipment is relatively large. Large, it is difficult to widely promote the application
Diethyl zinc will spontaneously ignite when it encounters air, and there is a great potential danger, and the zinc oxide (ZnO) produced after deacidification by this method can accelerate the photooxidation of paper fibers
[0006] At present, there are many kinds of deacidification methods popular at home and abroad, but they all have certain defects, such as high cost, inconvenient operation, inability to scale up, and potential safety hazards

Method used

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  • Pressurizing, atomizing and deacidifying device and method for pressurizing, atomizing and deacidifying by using same
  • Pressurizing, atomizing and deacidifying device and method for pressurizing, atomizing and deacidifying by using same
  • Pressurizing, atomizing and deacidifying device and method for pressurizing, atomizing and deacidifying by using same

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Get the "People's Daily" on May 12, 1973 with a paper surface pH value of 4.14, cut it into 10cm * 10cm, single layer, and put it into the deacidification reactor. At the same time, add 5 mL of natural deacidification agent (the natural deacidification agent obtained in Example 2 of patent 201010548981.5) into the atomizer, turn on the compressed air, and pass the atomized steam into the deacidification reactor to deacidify the acidified newspaper. After 3 hours of deacidification, the average pH of the paper surface was 6.56.

Embodiment 2

[0046] Get "People's Daily" on October 3, 71, whose paper surface pH value is 3.97, cut into 10cm * 10cm, three layers, put into the deacidification reactor. At the same time, add 12mL Ca(OH) with a concentration of 1g / L to the atomizer 2 Aqueous solution, open the compressed air, and the atomized steam is passed into the deacidification reactor to deacidify the acidified newspaper. After deacidification for 5 hours, the average pH of the paper surface was 5.82.

Embodiment 3

[0048] Get "People's Daily" on October 10, 71, whose paper surface pH value is 4.09, cut into 10cm * 10cm, three layers, put into the deacidification reactor. At the same time, 12 mL of calcium propionate aqueous solution with a concentration of 50 g / L was added to the atomizer, the compressed air was turned on, and the atomized steam was passed into the deacidification reactor to deacidify the acidified newspaper. After 4 hours of deacidification, the average pH of the paper surface was 5.77.

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Abstract

The invention discloses a pressurizing, atomizing and deacidifying device and a method for pressurizing, atomizing and deacidifying by using same. The device comprises an air pump, an atomizer, a deacidifying reactor, a liquid collector and a distributor; the device is low in manufacturing cost, convenient to use and wash and good in de-acidifying effect, and is suitable for any paper deacidifying agent solution, particularly suitable for deacidification of paper by using an organic deacidifying agent solution and a natural deacidifying agent solution; and the deacidified paper does not deform and is not sticky, ink handwriting is not affected, and the time for air-drying the deacidified paper in a shady place is short. The method comprises the steps of adding a deacidifying agent in the atomizer, introducing the atomized deacidifying agent steam into the deacidifying reactor, and deacidifying the acidified paper; and the pH value of the de-acidified paper is raised, therefore, the purpose of deacidifying is achieved. In the invention, pressurizing and atomizing technologies are used in the paper deacidification, and the operation is convenient and pollution-free.

Description

technical field [0001] The invention relates to a pressurized atomization deacidification device and a pressurized atomization deacidification method using the device. Background technique [0002] Books are the spiritual product of human civilization, as well as the main carrier and representation of human material civilization and culture. They are closely connected with the development process of human culture and productivity in various historical periods. A rich historical and cultural heritage. In libraries and archives, there are a vast collection of paper books and archives left over from history. As the carrier of the historical and cultural heritage of these books and archives, paper needs to be preserved for a long time and maintain a certain performance. Therefore, the durability of paper is an important issue concerned by the book and archive circles. There are many factors that affect the durability of paper, among which acid is an important factor that promo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H25/18
Inventor 方岩雄韩玲玲张焜陶建强谭伟郑俊霞周蓓蕾
Owner GUANGDONG UNIV OF TECH
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