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Cardboard paper pulping system

A container board paper and pulping technology, which is applied in the pulp beating method, pulp beating/refining method, papermaking, etc., can solve the problems of waste of fiber resources, waste of resources, and affecting the quality of kraft cardboard, so as to increase production capacity and improve Quality, the effect of expanding the scope of use

Pending Publication Date: 2018-09-04
NINE DRAGONS PAPER TAICANG LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In the prior art, the pulp filtered out by the purification equipment in the kraft pulping system is directly discarded, resulting in a great waste of resources; in addition, the clean water in the kraft pulping system contains light impurities. When it is used to dilute the slurry in the multi-disc thickener, it will affect the quality of kraft cardboard; if it is used to flush the slag outlet of the pressure screen and the slag remover, it will cause a waste of fiber resources in light impurities

Method used

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  • Cardboard paper pulping system

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Embodiment

[0017] Such as figure 1 As shown, the boxboard pulping system includes a cattle cardboard pulping system and a corrugated paper pulping system, and the cattle cardboard pulping system includes a pulper, a pressure screen, a slag remover, a multi-disc thickener, The heat dispersion system and the disc mill, the pulp outlet of the pulper is connected with the pulp inlet of the pressure screen, the pulp outlet of the pressure screen is connected with the pulp inlet of the slag remover, and The slurry outlet of the slag remover is connected with the slurry inlet of the multi-disk thickener, and the slurry outlet of the multi-disk thickener is connected with the slurry inlet of the thermal dispersion system. The slurry outlet of the thermal dispersion system The port is connected with the pulp inlet of the disc mill, and the slurry outlet of the slag remover is connected with the corrugated paper pulping system. The sludge filtered by the slag remover in the ox cardboard pulping sy...

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Abstract

The invention relates to a cardboard paper pulping system. The cardboard paper pulping system comprises a craft paper pulping system and a corrugated paper pulping system and is characterized in thatcraft paper pulping system comprises a pulper, a pressure screen, a residue remover, a multi-disc concentrator, a heat dispersion system and a disc mill, the pulp outlet of the pulper is connected with the pulp inlet of the pressure screen, the pulp outlet of the pressure screen is connected with the pulp inlet of the residue remover, the pulp outlet of the residue remover is connected with the pulp inlet of the multi-disc concentrator, the pulp outlet of the multi-disc concentrator is connected with the pulp inlet of the heat dispersion system, the pulp outlet of the heat dispersion system isconnected with the pulp inlet of the disc mill, and the residual pulp outlet of the residue remover is connected with the corrugated paper pulping system. The cardboard paper pulping system has the advantages that by directly conveying residual pulp in the craft paper pulping system to the corrugated paper pulping system, the residual pulp discharged by the craft paper pulping system is fully utilized, and the pulping yield of the corrugated paper pulping system is increased.

Description

Technical field [0001] The invention relates to the technical field of pulping and papermaking, in particular to a boxboard pulping system. Background technique [0002] Corrugated cardboard is composed of ox cardboard and corrugated core paper. As the surface layer of boxboard paper, cow cardboard has high cleanliness, good strength, and high fiber quality requirements; corrugated paper, as the core layer of corrugated boxboard paper, has relatively low paper surface and strength, and low fiber quality requirements . In the prior art, the sludge filtered by the purification equipment in the cattle cardboard pulping system is directly discarded, resulting in a great waste of resources; in addition, the clean water in the cattle cardboard pulping system contains light impurities. When it is used to dilute the slurry in the multi-disc thickener, it will affect the quality of the paper jam; if it is used to wash the slag outlet of the pressure screen and the slag cleaner, it will ...

Claims

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Application Information

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IPC IPC(8): D21B1/00D21B1/32D21B1/34D21D1/30D21D5/00D21F1/66D21F1/70D21D1/02
CPCD21B1/00D21B1/32D21B1/345D21D1/02D21D1/30D21D5/00D21F1/66D21F1/70Y02W30/64
Inventor 韩冲杨文恒
Owner NINE DRAGONS PAPER TAICANG LTD
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