Processing method for recycling waste packaging paper

Abstract

The invention discloses a processing method for recycling waste packaging paper, and relates to the technical field of waste paper recycling. The processing method comprises the following steps of: 1,conveying waste paper into a cutting machine, and sequentially carrying out twice flattening treatment, cutting treatment and crushing treatment on the waste paper in the cutting machine, 2, pouringa waste paper raw material into a magnetic suction rolling cylinder, rotating the magnetic suction rolling cylinder, supplying power for electromagnet in the magnetic suction rolling cylinder to adsorb metal impurities in the waste paper raw material; and 3, pouring the waste paper raw material into a pulping machine, pouring warm water into the pulping machine, conducting stirring to obtain pulp,pouring a deinking agent, a defoaming agent and a dispersing agent into the pulp, and starting an ultrasonic cleaner in the pulping machine to physically clean the pulp. When paper pulp is stirred, the surfaces of fibers in the paper pulp can be physically cleaned through ultrasonic waves, so that the separation efficiency of the fibers in the paper pulp and ink is improved, ultrasonic cleaning and stirring are mixed and used for 2-3 times, and the deinking quality can be improved.

Description

technical field [0001] The invention relates to the technical field of waste paper recycling, in particular to a processing method for recycling waste packaging paper. Background technique [0002] Waste paper generally refers to recyclable renewable resources that are discarded after use in production and life, including various high-grade paper, yellow board paper, waste cartons, edge-cut paper, packing paper, paper for enterprises and units, engineering paper, books, periodicals and newspapers Wait, in daily life and work, a lot of waste paper will be produced. If the waste paper is not collected and utilized, it will pollute the environment. The raw materials of paper are mainly plant fibers such as wood, grass, reed, bamboo, etc. , Waste paper is also known as "secondary fiber", and the main use is fiber recycling to produce recycled paper products. According to the different fiber components, the corresponding recycling by paper type can maximize the value of waste pa...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned discarded packaging paper, the original shape is still retained during recycling, which will affect the crushing efficiency during processing. At the same time, the original shape will occupy a large amount of processing space, resulting in a reduction in processing efficiency. At the same time, a large amount of ink is smeared during recycling For waste paper, the existing recycling method is slow to remove ink, and some metal impurities and particles remain in some waste paper, if not removed, it will affect the technical problem of waste paper recovery, the purpose of the present invention The purpose is to provide a processing method for recycling and reusing waste packaging paper. Through the cutting machine, the waste paper can be pressurized into a flat shape, and at the same time, it will be cut into long strips before crushing, so that the quality and efficiency of crushing can be improved, and at the same time The spacing of the pressing components in the cutting machine can be adjusted according to the needs, so that it is suitable for waste paper of different thicknesses. On the other hand, the present invention adds an ultrasonic cleaning step and a roller adsorption step in the processing flow. The speed and quality of the ink, the roller adsorption can absorb the crushed waste paper raw materials while turning them over, so as to improve the efficiency of adsorption

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