Process for recycling papermaking waste residues

A papermaking waste residue and process technology, which is applied in the process field of papermaking waste residue recycling, can solve the problems of polluting the air, backward technology, waste of manpower and material resources, etc., and achieves the effect of low energy consumption

Inactive Publication Date: 2020-07-03
ZHONGTIAN PAPER
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Problems solved by technology

These treatment methods are relatively backward in technology, low in efficiency, occupy a large area, waste manpower and material resources, and the working environment is dirty and messy. Moreover, the water pollution and air pollution of paper residue treated by this soil method are quite serious, and the waste residue is not eliminated in essence. 60% of the paper-making waste has not been completely disposed of

Method used

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  • Process for recycling papermaking waste residues
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Embodiment 1

[0032] a. Metal separation: This step includes three sources of raw materials for metal separation, mainly from the solid waste obtained from the treatment of twisted rope slag (annual production capacity of 10,285 tons), through hydraulic shears, shredders, broken up Crusher, primary crusher and magnetic separator 1 initially select some scrap metals, and then pass through vibrating screen 1 and magnetic separator 2 to further select scrap metals; 17,600 tons, which is equivalent to 11,000 tons of dry solid waste) The waste obtained from the treatment will directly enter the vibrating screen 1, and the waste metal will be selected through the magnetic separator 2 (250 tons of metal produced at the slag of the twisted rope, the cylinder screen, the row The metal produced by the extension machine is 460 tons / year); the ton body waste (annual production of 2115 tons) from other sources (treated by the slag remover and the coarse slag screen) is passed through the second vibrating...

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Abstract

The invention discloses a process for recycling papermaking waste residues. The process comprises the steps of firstly, removing metal in solid waste from twisted rope slag, a cylinder sieve, a slag discharge centrifuge, a residue remover and a rough residue sieve, and then conducting paper-plastic separation on the remaining waste residues in the solid waste obtained from the twisted rope, the cylinder sieve and the slag discharge centrifuge, wherein wet pulp obtained through separation is recycled to a papermaking workshop, obtained plastic fragments are used for manufacturing plastic particles, and meanwhile, exhaust gas generated in the production process is also treated. According to the process, harmless and energy-oriented comprehensive utilization of solid waste is achieved, the advanced clean production process is adopted, secondary pollution is unlikely to occur in the production process, thus harmless and energy-oriented comprehensive utilization of the papermaking waste residues is achieved, and thus waste materials are changed into things of value.

Description

technical field [0001] The invention belongs to the technical field of papermaking, in particular to a process for recycling papermaking waste residue. Background technique [0002] The rapid development of socio-economic technology and the improvement of people's living standards have led to an increase in the consumption of paper products. The output of global paper and cardboard is increasing year by year, and the output of waste paper is also increasing. Using waste paper as raw material to produce paper and cardboard can not only reduce deforestation, but also reduce waste paper waste, which is a green project that is conducive to energy conservation and environmental protection. Because waste paper is doped with more packaging plastics, iron nails and metals in packaging, a large amount of papermaking waste will be generated in the papermaking process of waste paper. Although the main components of these papermaking waste residues are waste plastics, plastic films, me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/04B29B17/02B29B17/00B29B9/00B09B3/00B09B5/00B03B7/00
CPCB03B7/00B09B3/00B09B5/00B29B9/00B29B17/00B29B17/02B29B17/0412B29B2017/0272Y02W30/52Y02W30/62
Inventor 王兴军王大伟高其峰臧传滨
Owner ZHONGTIAN PAPER
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