Method for making regenerated two-layer cardboard paper by operating three-layer lapping paper machine

A paper machine and containerboard technology, applied in the field of papermaking, can solve problems such as single three-layer high-grammage containerboard, and achieve the effects of reducing wear and tear, reducing paper breaks and saving costs.

Active Publication Date: 2020-07-17
SHANYING INT HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the problem that the existing three-layer laminated paper machine can only produce a single three-layer high-grammage boxboard, the present invention provides a three-layer laminated paper machine for papermaking regeneration The method of two-layer cardboard paper adopts different forming methods according to different grammage cardboard paper, so as to realize the multi-purpose of one machine

Method used

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  • Method for making regenerated two-layer cardboard paper by operating three-layer lapping paper machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The method of operating the three-layer laminated wire paper machine in this embodiment to make recycled two-layer containerboard paper, taking the company's change of 190g high grammage paper to 120g low grammage paper as an example, includes the following specific steps:

[0033] Step S101. The three-layer wire paper machine runs at a speed of 1040m / min. When the paper machine is in normal operation, the three-layer wire stops the pulp supply pump. The running state changes to the stopped state;

[0034] Step S102, the composite roll of the core and bottom net is disengaged, the composite roll is lifted from the composite position to the separated position, the composite roll of the surface and bottom net is released, the composite roll is lifted from the composite position to the separated position, the interlocking of the instrument core net is released, and all core layers Interlocking with the transmission of the network pressure part is released to prevent the co...

Embodiment 2

[0040] The steps of this embodiment are basically the same as those of Embodiment 1. Taking the company’s change from 150g high grammage paper to 110g low grammage paper as an example, the method of operating a three-layer laminated paper machine to make recycled two-layer container board paper in this embodiment, Include the following specific steps:

[0041] Step S101, when the paper machine is in normal operation, the three-layer net stops the pulp supply pump, after the three-layer net flows through the water, stops the pulp pump, and then changes the three-layer net transmission from the running state to the stopped state;

[0042] Step S102, the composite roll of the core and bottom net is disengaged, the composite roll is lifted from the composite position to the separated position, the composite roll of the surface and bottom net is released, the composite roll is lifted from the composite position to the separated position, the interlocking of the instrument core net i...

Embodiment 3

[0047] The steps of this embodiment are basically the same as those of Embodiment 1. Taking the company’s change from 130g high grammage paper to 100g low grammage paper as an example, the method of operating a three-layer laminated paper machine to make recycled two-layer container board paper in this embodiment, Include the following specific steps:

[0048] Step S101, when the paper machine is in normal operation, the three-layer net stops the pulp supply pump, after the three-layer net flows through the water, stops the pulp pump, and then changes the three-layer net transmission from the running state to the stopped state;

[0049] Step S102, the composite roll of the core and bottom net is disengaged, the composite roll is lifted from the composite position to the separated position, the composite roll of the surface and bottom net is released, the composite roll is lifted from the composite position to the separated position, the interlocking of the instrument core net i...

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Abstract

The invention discloses a method for making regenerated two-layer cardboard paper by operating a three-layer lapping paper machine, and belongs to the technical field of paper making. The method comprises the following steps: in a normal operation state, stopping a slurry supply pump of a three-layer network, stopping a slurry flushing pump after the three-layer network approaches and feeds water,and then converting the transmission of the three-layer network from the operation state to a stop state; disengaging the core-bottom net composite roller, lifting the composite roller from a composite position to a separated position, disengaging the surface-bottom net composite roller, lifting the composite roller from the composite position to the separated position, releasing instrument corenet interlocking, and releasing transmission interlocking of all core layers and a net pressing part; starting the surface-bottom net, when the running speeds of the two layers of nets are consistent,lowering the surface-bottom net composite roller to a composite position from a separated position; when the opposite bottom approaches and feeds water, starting the surface slurry flushing pump andthe bottom slurry flushing pump, when the pressure is normal, starting the surface layer feeding pump, and the bottom layer feeding pump, keeping 30 g absolute dry quantification of the surface layer,adding the rest quantification completely to the bottom layer, and after the quantification reaches the set quantification, starting paper injection.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and more specifically relates to a method for making recycled two-layer cardboard paper by operating a three-layer laminated wire paper machine. Background technique [0002] The three-layer laminated wire paper machine is mainly composed of wire, pressing and drying parts. The wire part is composed of two types: cylinder wire and fourdrinier wire. The pressing part is composed of pressing rolls and papermaking felts. The drying part is composed of one or several dryers. The fourdrinier machine is also equipped with a mechanical calender to improve the smoothness and tightness of the paper. There are many types of paper machines, such as single-dryer paper machines (also known as Yankee paper machines) for making single-sided glossy paper, fourdrinier multi-dryer paper machines for general paper, and thin sheets for making typing paper and cigarette paper. Paper machines, board machines for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/00
CPCD21F11/00
Inventor 吴建雄陈学萍万涛宋杰王金明刘召强
Owner SHANYING INT HLDG CO LTD
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