Pulp concentration adjusting method and device for used paper recycling apparatus

Abstract

The invention presents a pulp concentration adjusting method and its device for realizing a used paper recycling apparatus being installed in a room of a small shop or the like, friendly to the environment, low in running cost, and capable of maintaining a high confidentiality. The pulp concentration adjusting section is characterized by dividing a specified portion from the whole volume of used paper pulp manufactured in pulp making section in preceding process, adding water for adjusting concentration to the divided portion of used paper pulp, and adjusting the total volume of the divided portion of used paper pulp and water to a specified value, thereby preparing a pulp suspension of specified concentration. In this manner, by adjusting the concentration of used paper pulp in dividing portions (small portions), the water consumption can be saved substantially and the apparatus size is reduced, while enhancing the processing capacity.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to a pulp concentration adjusting method and device for used paper recycling apparatus, and more particularly to a concentration adjusting technology for adjusting the concentration of used paper pulp manufactured in pulp making process in a preceding process in a used paper recycling apparatus of furniture size installed at the site of origin of used paper, for recycling and processing into reusable paper at the site without discarding the generated used paper.[0003]2. Description of the Related Art[0004]Used paper of various types occurs not only in government offices or private companies, but also in daily life or general household. Used paper is usually discarded, incinerated, or disposed as refuse.[0005]On the other hand, in the global concern about effective use of limited resources on earth, various technologies have been developed to regenerate and reuse the used paper being disposed and di...

AI Technical Summary

Benefits of technology

[0028](1) The used paper recycling apparatus is realized in a small and simple structure, by including, in an apparatus case of furniture size, a pulp making section for manufacturing used paper pulp by macerating and mashing used paper, and a paper making section for manufacturing recycled paper by making the used paper pulp manufactured in the pulp making section, and therefore without discarding the used paper, the used paper is recycled and reused at the same site of origin, and disposal of used paper is reduced, and refuse problems can be solved, and the limited resources can be utilized effectively.

[0029]Hitherto, because of confidential problems, recycling of used paper has not been promoted, but since the used paper can be recycled and reused at the same site of origin, effects of effective utilization of resources are outstanding.

[0030](2) At the site of origin of used paper, a compact used paper recycling system having a same function as large scale system installed in paper making plant or used paper recycling plant is installed, and used paper can be recycled continuously in a closed circuit in a small shop or general household, and refuse collection and transportation expenses and incineration and other costs are saved, and it is very economical.

[0031](3) The apparatus structure is compact, and it can be installed not only in large office, but also in small shop or general household, and from this point of view, too, leak of confidential information and private information can be securely prevented.

[0032](4) Being installed at the site of origin of used paper, the used paper is macerated into used paper pulp, and the used paper pulp is made into recycled paper, and thus the used paper is circulated and used again as recycled paper at the same site of origin, and information of characters and patterns printed on the paper is not diffused outside of the site of origin of used paper, and leak of confidential information and private information can be prevented securely, and a high confidentiality is a assured, and the limited resources may be used effectively.

[0033]That is, by using the used paper recycling apparatus having the paper machine of the invention as paper making section, it is free from risk of external diffusion of information from a specific institute (for example, school, hospital, city office, law firm, patent office, general household).

Problems solved by technology

For recycling of used paper, a tremendous manual labor is needed for collecting used paper, and used paper collection involves various problems, such as mixing of foreign matter by garbage collectors, defective classification due to lack of knowledge about used paper recycling, and entry of harmful objects, and if used paper is collected, in order to recycle by 100 percent, final checking by specialists and cleaning works are needed.

On the other hand, confidential documents are not easily recycled and are mostly incinerated, and the recycling rate is low.

This wet process shredder is a giant machine installed in a wide space, and it can be used only in a large office, and it is not suited to small office or general household.

If shredded chips may be used as material for recycled paper, processing is possible only in large recycling plant, and the recycling cost is high and it is not economical.

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