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Paper pulp recycling method

A recycling method and pulp technology are applied in the field of waste paper recycling, which can solve the problems of low recycling rate of waste paper fibers, and achieve the effects of improving the crushing effect, the extraction rate and the content.

Inactive Publication Date: 2019-03-12
崔雪柯
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art and solve the problem of low recovery rate of waste paper fibers, a pulp recycling method proposed by the present invention

Method used

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Embodiment Construction

[0033] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0034] Such as Figure 1 to Figure 5 Shown, a kind of pulp recovery method of the present invention, this technique comprises the following steps:

[0035] S1: Spray water on the waste paper through a sprayer, so that the water fully soaks the waste paper;

[0036] S2: After the waste paper is fully soaked, move the waste paper to the freezer to freeze the waste paper. The temperature of the freezer is set between -18°C and -23°C, and the freezing time is 1 to 3 hours. In order to fully freeze the waste paper; water will freeze after freezing, and the volume will increase at this time, and the waste paper will be opened and torn.

[0037] S3: Put the fully frozen waste paper into the crusher for crushing; when the crusher crushes the ice cubes, ...

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Abstract

The invention belongs to the technical field of waste paper recycling, in particular to a paper pulp recycling method. A recycling device adopted in the process comprises a recycling tank, and furthercomprises supporting legs, a feed inlet, a discharge outlet, a motor, a worm wheel, a mounting frame, a transmission mechanism, a primary filtration unit, a secondary filtration unit and a controller, wherein the controller is used for controlling the work of the recycling device, the supporting legs are installed at the bottom of the recycling tank, water is sprayed to waste paper with a sprayerand is frozen, the water turns into ice after being frozen, at the moment, the volume is increased, the waste paper is opened and torn, and meanwhile the waste paper becomes brittle after being frozen so as to be more easily smashed sufficiently; a crushing mill is used for crushing; and when the crushing mill crushes ice blocks, the waste paper is crushed through the ice blocks, at the moment, the crushed ice blocks further tear the waste paper, the smashing effect is improved, the fiber content of the dissolved waste paper is greatly improved, and the extraction rate of the fibers in the waste paper is improved.

Description

technical field [0001] The invention belongs to the technical field of waste paper recycling, in particular to a pulp recycling method. Background technique [0002] Waste paper refers to recyclable renewable resources that are discarded after use in production and life, including various high-grade paper, yellow cardboard, waste cartons, edge-cut paper, packing paper, paper for enterprises and units, engineering paper, books and periodicals Newspapers and more. Internationally, waste paper is generally divided into three types: European waste, American waste and Japanese waste. In my country, the degree of recycling of waste paper is relatively low compared with western developed countries. [0003] The raw materials of paper are mainly plant fibers such as wood, grass, reed, bamboo, etc. Waste paper is also called "secondary fiber", and the main purpose is to reuse fiber to produce recycled paper products. According to the different fiber components, the corresponding r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/02D21B1/34D21B1/32D21D5/04B01D36/04
CPCB01D36/045D21B1/32D21B1/34D21C5/02D21D5/043Y02W30/64
Inventor 不公告发明人
Owner 崔雪柯
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