Low-cost environment-friendly recycled corrugated paper papermaking process

Abstract

The invention discloses a low-cost environment-friendly recycled corrugated paper papermaking process. The process comprises the following steps: firstly, crushing recycled waste corrugated cardboardsinto small blocks through a crushing machine to obtain small block-shaped waste paper blocks; uniformly spreading the obtained small block-shaped waste paper blocks on two pieces of corrugated papercoated with environment-friendly adhesives, and performing machine treatment to make the waste paper blocks basically smooth to obtain middle corrugated paper; making the obtained middle corrugated paper pass through an extruder, integrating the surface paper, the paper blocks and the adhesives to obtain an integrated paperboard; and calendering the obtained integrated paperboard through a calendering roller to obtain a calendered corrugated paperboard. In the production process, the water content of the product is reduced, the waste of water resources is reduced, the shrinkage phenomenon of the formed finished product is solved, and meanwhile, the drying time is shortened; time and labor are saved, convenience and rapidness are achieved, mechanical operation can be realized, and the costrequired by recovery is reduced. The used adhesives are free of pollution, the waste is reduced to the maximum degree, and the environment is protected.

Description

technical field [0001] The invention relates to the field of waste paper recycling, in particular to a manufacturing process for recycling waste corrugated paper. Background technique [0002] In my country, recycled cardboard has become an important raw material for making paper, but the recycling rate of waste paper in my country is only 41.63%, which is lower than the world average of 58.1%. At the same time, China has become the largest importer of waste paper pulp. In recent years, the price of waste paper in the international market has continued to rise, and the paper industry has been deeply affected by the rapid increase in the import price of waste paper. Therefore, improving the recycling rate and utilization rate of waste paper is an important way to solve the shortage of papermaking resources in my country, and is the key to alleviating the development difficulties of my country's papermaking enterprises and solving the bottleneck problems such as insufficient p...

AI Technical Summary

Problems solved by technology

[0003] Traditional corrugated cardboard recycling procedures are cumbersome, and a lot of water resources are wasted (the moisture content of pulp is dried from 99.5% to 4%-6%). At the same time, the molding time of heating and drying is relatively long, which consumes a lot of time and energy. ; Adding a large number of chemical agents (sulfate, sodium hypochlorite, etc.) during the processing will pollute the environment; in the papermaking process, the employees of the corrugated cardboard assembly line work in a high-temperature, high-noise and dusty environment for many years, and are harmed by physical and chemical pollution

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