CN1266125A - Method for remaking wet method fibreboard production line to produce pulp for pulp article moulding - Google Patents
Method for remaking wet method fibreboard production line to produce pulp for pulp article moulding Download PDFInfo
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- CN1266125A CN1266125A CN 99103871 CN99103871A CN1266125A CN 1266125 A CN1266125 A CN 1266125A CN 99103871 CN99103871 CN 99103871 CN 99103871 A CN99103871 A CN 99103871A CN 1266125 A CN1266125 A CN 1266125A
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Abstract
A method for remaking the wet hard fibre board production line into the paper pulp production line for producing pulp moulded product is characterized by that it remains and utilizes the raw material preparation, pulp making and pulp storing and fourdrinier board forming equipments of original wet fibre board production line, removes continuus glueing machine, board blank conveyer, ripsaw and drag-saw, hot press, baseplate returning machine and finished product saw-cutting machine, and adds the equipments of bleaching liquor mixer, bleaching tower, fibre pneumatic drying system, dried fibre storage bin and fibre packaging machine. The paper pulp produced by said invention can be used for making environmental protection package and food tableware.
Description
The change products method of pulp for pulp article moulding of a kind of wet method fibreboard production line the present invention relates to the change products production method of pulp for pulp article moulding of a kind of wet method fibreboard production line, belongs to the technical field of fiberboard and paper-making pulping.
Present traditional wet-process fiber board production method is because its product specification is low, output is little and waste water pollution problem is found oneself in the mire.Transformation for this industrial production line has caused being absorbed in of people, and the nineties is at the emerging moulded paper pulp product of China, because it can be widely used in industries such as packing, food and fast food product, " white pollution " of eliminating contaminated environment day by day had great importance, obtained development rapidly at home.Existing pulp for pulp article moulding mainly is to make package packing supplies with secondary stock, makes food containers, snack container with bleach chemical pulp, and these two kinds of paper pulp all exist as contaminated environment, cost height, the harmful shortcoming of residue.
The objective of the invention is to propose a kind ofly will have the change products method of pulp for pulp article moulding of fiberboard wet production line now, it can make full use of original fiberboard wet production line equipment, produces moulded paper pulp product paper pulp.It can make the low-grade fibreboard production line device fabrication of original production go out costly pulp for pulp article moulding.Simultaneously, than chemical pulp and waste paper, it is low that the paper pulp that this method is produced has a cost, makes full use of plant fiber material, and the paper pulp of producing does not have characteristics such as chemical residue.
Method of the present invention is the most equipment that keeps wet method fibreboard production line, and in conjunction with the principle of paper-making pulping, increasing partial bleaching equipment makes plant fiber material after fibre is separated in defibrator process, under the dense state of height, carry out non-polluting bleachoing to the required whiteness of moulded paper pulp product, perhaps do not bleach and promptly use primary colors with hydrogen peroxide.After diluting, further improve its beating degree again, extract to the wet pulp of 60%-70% moisture content at fourdrinier machine then, drying or directly be packaged into commercial pulp with refiner.(accompanying drawing 1, accompanying drawing 2 expressions are transformed preceding and improved production-line technique flow process)
In conjunction with the accompanying drawings 1, the present invention is described in detail for accompanying drawing 2.The inventive method is transformed feedstock production, defibrator process, storage slurry and the fourdrinier forming workshop section that keeps in the wet production line to traditional fiberboard wet production line, removes workshop sections such as slab transportation, hot pressing, backing plate loopback, saw limit, stacking.Available equipment has: belt conveyer, chipping machine, chip blower, wood chip cyclone separator, vibrating screen, chip bin, defibrator, refiner, reserve pit, stock pump, fourdrinier machine etc.
According to method of the present invention, raw material mixes with bleaching agent and auxiliary agent with pipe method or mechanical system after defibrator process.Bleaching agent is a hydrogen peroxide, and auxiliary agent is with sodium silicate etc., and its consumption is respectively the 3-15% and the 1-3% of over dry slurry.Mixed slurry stopped in bleaching tower 1-4 hour, reached whiteness 30-70%.
According to method of the present invention, the concentration after the dilution washing of the slurry after the bleaching is 3-10%, makes with extra care through the refiner mill to make its slurry beating degree to 25-40 ° again, puts into the reserve pit of wet production line again.
According to method of the present invention, the slurry after the bleaching is stored in the original stock tank of wet production line behind correct grinding, and is evacuated to stock pump in the pulping case of fourdrinier machine, extrudes moisture content to moisture content 50-70% through fourdrinier machine.
According to method of the present invention, can directly be packaged into the commodity wet pulp or after disperseing, send into pneumatic conveying drying system drying through the bleached pulp that fourdrinier machine is extruded, dry back paper pulp fiber moisture content is 5-35%, sends into baling press through dried fine feed bin metering again and is packaged into the commodity dry pulp.
According to method of the present invention, raw material can be all draft and xylophyta fibrous material.
According to of the disinfective action of its slurrying water of method of the present invention owing to the bleaching agent hydrogen peroxide, make in the fourdrinier machine agent water outlet and do not contain hazardous substance, sink after treatment and go solid suspension can be recycled, solved the red discharge of wastewater problem of fibrillation plate wet production line.
The paper pulp of producing according to the inventive method is applicable to moulded paper pulp product, is specially adapted to the manufacturing of packaging for foodstuff and snack container.This paper pulp is compared its cost with the general chemistry slurry can reduce 30-50%.
Adopt the inventive method that the fiberboard wet production line is undergone technological transformation, can transform the product structure of original production line, produce the paper pulp that is suitable for environment-protecting product market, improved the value of used equipment, increase economic benefit.
Below in conjunction with example, the present invention is further illustrated.
Embodiment: the poplar slurry is made the paper mould mess tin
It is that raw material is separated fibre with the QM6 defibrator on the fiberboard wet production line that present embodiment adopts poplar, and the fiber freeness is 20 seconds, bleaches to whiteness 65 and spends through adding hydrogen peroxide 15%, and washing, extract to moisture content is 60% dry pulp.With the paper meal that grouting method moulding and hot pressing on the snack container make-up machine, shaping are made, properties of product are as follows:
Brightness 65%
Folding strength (laterally) 〉=20
Bursting strength (Kpa) 〉=900
Deflection (MN.M) vertically 〉=25
(MN.M) laterally 〉=15
Claims (6)
1. a remaking wet method fibreboard production line is produced the method for moulded paper pulp product with paper pulp, it is characterized in that keeping and the slurrying workshop section of feedstock production workshop section that utilizes original wet method fibreboard production line, reserve pit and fourdrinier forming workshop section most equipment, cancellation slab mitre saw, slab are carried the armamentarium of hot press, backing plate loopback and finished product saw limit, stacking operation.Bleaching agent blender, bleaching tower, finished gas-flow drying system, dried fiber feed bin, baling press have been increased.
2. in accordance with the method for claim 1, used raw materials for production comprise all woody and herbaceous plant fibrous materials.
3. in accordance with the method for claim 1, its bleaching agent can before defibrator process, add or defibrator process after mix to add in the slurry with blender, moisture content be the slurry of 50-70% in special bleaching tower, bleach to whiteness be 30-50%.
4. in accordance with the method for claim 1, the slurry after the bleaching is refined to beating degree 25-35 ° by refiner after diluting.
5. in accordance with the method for claim 1, the paper pulp behind the bleaching correct grinding is extruded onto the underflow that moisture content is 50-20% by fourdrinier machine.
6. in accordance with the method for claim 1, the wet pulp of fourdrinier machine being extruded with baling press is directly packed or is packed when pneumatic drier is dried to moisture content for 10-35%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103871 CN1266125A (en) | 1999-03-09 | 1999-03-09 | Method for remaking wet method fibreboard production line to produce pulp for pulp article moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103871 CN1266125A (en) | 1999-03-09 | 1999-03-09 | Method for remaking wet method fibreboard production line to produce pulp for pulp article moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1266125A true CN1266125A (en) | 2000-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99103871 Pending CN1266125A (en) | 1999-03-09 | 1999-03-09 | Method for remaking wet method fibreboard production line to produce pulp for pulp article moulding |
Country Status (1)
| Country | Link |
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| CN (1) | CN1266125A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635014A (en) * | 2012-04-12 | 2012-08-15 | 银川市富邦印刷包装有限公司 | Complex-structured paper pulp molded product as well as preparation method and application thereof |
| CN103255665A (en) * | 2013-05-24 | 2013-08-21 | 云南明磊实业有限公司 | Method for preparing paper pulp by utilizing leftovers and wastes of paper pulp molded tableware |
| CN115748289A (en) * | 2023-01-03 | 2023-03-07 | 陕西东方环保产业集团东鹏再生资源利用有限公司 | Method for improving paper seed changing efficiency in papermaking |
-
1999
- 1999-03-09 CN CN 99103871 patent/CN1266125A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635014A (en) * | 2012-04-12 | 2012-08-15 | 银川市富邦印刷包装有限公司 | Complex-structured paper pulp molded product as well as preparation method and application thereof |
| CN103255665A (en) * | 2013-05-24 | 2013-08-21 | 云南明磊实业有限公司 | Method for preparing paper pulp by utilizing leftovers and wastes of paper pulp molded tableware |
| CN115748289A (en) * | 2023-01-03 | 2023-03-07 | 陕西东方环保产业集团东鹏再生资源利用有限公司 | Method for improving paper seed changing efficiency in papermaking |
| CN115748289B (en) * | 2023-01-03 | 2023-12-08 | 陕西东方环保产业集团东鹏再生资源利用有限公司 | Method for improving efficiency of paper seed replacement in papermaking |
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