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Method for harmless treatment of waste residue in paper making

A technology of harmless treatment and papermaking waste residue, applied in the direction of solid waste removal, etc., can solve problems such as waste gas pollution, and achieve the effects of avoiding secondary pollution, preventing vicious environmental pollution accidents, preventing illegal transshipment and illegal disposal

Inactive Publication Date: 2014-05-14
ZHEJIANG YONGTAI PAPER IND GROUP +1
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Problems solved by technology

The granulation factories all burn coal and open fire to granulate, the exhaust gas pollution is serious, and the carcinogenic gas dioxin is produced

Method used

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  • Method for harmless treatment of waste residue in paper making

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Embodiment 1

[0019] Such as figure 1 As shown, the harmless treatment method of papermaking waste slag of the present invention comprises the following steps:

[0020] 1) Firstly, the papermaking waste in the papermaking waste yard is separated from the light mixed waste plastics and pulp fiber slag through the wind vibrating screen. Waste plastics and pulp fiber slag are separated from different outlets. After the pulp fiber slag is broken, it is sent to the pulping section for fiber recovery, and the fine fiber sludge that is finally eliminated is dried and sent to the incineration boiler; the glass and stones screened out from the pulping raw materials are sent to road landfills or sent to cement plants, etc.; light mixed waste Plastics are sent to chemical factories as raw materials, such as oil refining, building exterior wall decoration panels, and so on.

[0021] 2) Magnetically select magnetic metal materials, such as iron blocks and iron wires, from the waste left over from step...

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Abstract

The invention discloses a method for harmless treatment of waste residue in paper making. According to the method, light-weight plastic mixture, cellulose residue, magnetic and non-magnetic metals and small heavy hard plastics and the like are separated from waste residues in paper making through a pneumatic vibration screen, an incineration boiler, a magnetic separation device, a rolling screen and eddy current, namely, all the parts in the waste residue in paper making are continuously separated by machines so that all the waste sources are optimally disposed to achieve harmless treatment by changing waste residues of paper making into valuables, so that environmental pollution accidents are prevented. The method is necessary for economic sustainable development.

Description

technical field [0001] The invention relates to the technical field of a comprehensive treatment method for papermaking waste residue. Background technique [0002] According to statistics, every 6 million tons of paper produced will produce more than 1 million tons of papermaking waste, especially waste paper, which produces more and more complex waste materials, which contain more waste plastics, a small amount of waste metals and Various other impurities. The past and current treatment methods are mainly landfill method, water washing method, sorting method, granulation method and incineration method. These methods all have problems such as low resource utilization rate and serious pollution. [0003] Such as landfill method, which seriously pollutes the local ecological environment. [0004] Manual sorting plus water washing sorting method, which is to manually pick out metals (cans, iron wires, etc.) and precious plastics (mineral water bottles, etc.) Plastics are so...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00
Inventor 王建华陈献忠汪华军罗灵芝陈华杨仁党王立军徐静静
Owner ZHEJIANG YONGTAI PAPER IND GROUP
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