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Method for recycling papermaking waste residues

A technology of papermaking waste residue and cracking device, which is applied in the field of recycling waste paper as raw material in the papermaking industry, can solve the problems of water pollution, waste gas, environmental pollution, incineration environment, etc., and achieve complete cracking, reduce energy consumption, and increase cracking temperature. Effect

Inactive Publication Date: 2013-01-30
仁精科技(昆山)有限公司
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Problems solved by technology

This process will bring a lot of water pollution and waste gas discharge, not only waste a lot, but also basically ignore the cost of environmental protection
The current recycling process of waste plastic mixture can only bring serious pollution to the environment
Since there is no better process to solve this problem, it can only be washed and granulated in several places to alleviate this problem as much as possible. Except for a small amount of waste plastic mixture that is manually selected for granulation, most of it is incinerated and produced. severe environmental pollution

Method used

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  • Method for recycling papermaking waste residues

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings, and the devices used in the present invention are all existing devices.

[0033] The paper mill samples a batch of papermaking waste residues. Generally, the composition of papermaking waste residues is 40% wet waste plastics, 50% wet pulp, 3% iron and 7% other components. The moisture content of wet waste plastics is generally 60%, the moisture content of wet pulp is 70%, the moisture content of iron and other components is low, and the overall moisture content of papermaking waste residue is about 60%, and the above ratio values ​​are the weight percentages of each component. The invention is suitable for treating papermaking waste residues produced by papermaking in various paper mills. The following are the specific processing steps:

[0034] 1. The paper-making waste slag passes through the magnetic separation device to separate the hard iron from it, and 95% of th...

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Abstract

The invention discloses a method for recycling papermaking waste residues, belonging to the technical field of papermaking waste residue treatment. The method comprises the following steps: magnetic separation, stave processing, centrifugal deslurrying, squeezing water, drying, cracking and cracking oil-gas separation. The method fully utilized various ingredients of waste residues, can achieve the purpose of recycling the papermaking waste residues, and can eliminate the damage of papermaking waste residue to the environment.

Description

technical field [0001] The invention belongs to the technical field of papermaking waste residue treatment, and in particular relates to a method for recycling waste paper used as raw materials in the papermaking industry. Background technique [0002] Waste paper recycling is an effective way to solve the shortage of raw materials for papermaking. It can save resources and reduce costs. It is an important measure for my country's paper industry to solve the problem of fiber raw materials. However, a large amount of waste residue will be generated after using waste paper to make paper. The production and sales of hundreds of paper mills in Fuyang City, Zhejiang Province account for more than 60% of the domestic market. According to statistics, more than 2,000 tons of waste residues are generated every day, and 650,000 tons of papermaking waste residues are produced throughout the year. The main components of papermaking waste include waste plastics, pulp, metals and other ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00D21B1/32D21C5/02C10G1/00
CPCY02W30/64
Inventor 戚新军杨棋良
Owner 仁精科技(昆山)有限公司
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