CN109514685A - A kind of production technology of low density fiberboard - Google Patents

A kind of production technology of low density fiberboard Download PDF

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Publication number
CN109514685A
CN109514685A CN201811517143.4A CN201811517143A CN109514685A CN 109514685 A CN109514685 A CN 109514685A CN 201811517143 A CN201811517143 A CN 201811517143A CN 109514685 A CN109514685 A CN 109514685A
Authority
CN
China
Prior art keywords
low density
fiber
production technology
density fiberboard
sizing
Prior art date
Application number
CN201811517143.4A
Other languages
Chinese (zh)
Inventor
宗文明
刘韶华
Original Assignee
大亚木业(茂名)有限公司
大亚人造板集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大亚木业(茂名)有限公司, 大亚人造板集团有限公司 filed Critical 大亚木业(茂名)有限公司
Priority to CN201811517143.4A priority Critical patent/CN109514685A/en
Publication of CN109514685A publication Critical patent/CN109514685A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/10Moulding of mats
    • B27N3/12Moulding of mats from fibres
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00Fibrous raw materials or their mechanical treatment
    • D21B1/04Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14Disintegrating in mills

Abstract

The invention belongs to wooden beaver board technical fields, it is related to the manufacture of fiberboard, more particularly to a kind of production technology of low density fiberboard, include: the preparation of fiber → sizing and drying → mat formation with after precompressed → plate hot pressing → semi-finished product post-processing through inspection, sawing, be packaged to obtain the final product, wherein: in the preparation section of the fiber, defibrator process after chip steaming softening, fiber bulk density are 51~55 kg/m3;In the sizing and drying process, for wood fibre into adhesive is first applied before drying duct, resin added is 215~225kg/m3;80~100 DEG C of dry 5.0~10.0s after sizing, moisture content of the raw material is 7.5~10.5%;Described to mat formation in prepressing procedures, for feed bin temperature at 40~50 DEG C, fibre morphology is partially thin when mating formation, close to powdered.The present invention can save wood fibre 100kg/m compared with common medium density fibre board (MDF)3, improve 15% or more timber resources utilization rate.Power consumption, sewage and exhaust gas discharge are more advantageous, reduce production and transportation cost, expand the structure and application field of wood-based plate.

Description

A kind of production technology of low density fiberboard
Technical field
The invention belongs to wooden beaver board technical fields, are related to the manufacture more particularly to a kind of low-density of fiberboard The production technology of fiberboard.
Background technique
Fiberboard is divided into four classes according to the density of fiberboard by China: nominal density is less than or equal to 0.45g/cm3's Fiberboard is light fiberboard, and nominal density is in 0.45~0.65g/cm3Between be low density fiberboard, nominal density is 0.65 ~0.80g/cm3Between be medium density fibre board (MDF), nominal density is greater than 0.80g/cm3It is high density fiberboard.Light fibre Plate is light, and voidage is big, there is good thermal insulation and sound absorption properties, the multi-purpose covering material made inside public building, middle density Fiberboard structure is uniform, and density and physical and mechanical property are all moderate, there is preferable re-workability, and the thickness range of product also compares Width is widely used in Furniture manufacture, floor production, indoor decorating etc..High density fiberboard is since density is big, within institute Portion's institutional framework is most fine and closely woven, especially has closely knit edge, the edge of various abnormal shapes can be processed into, with its excellent item Physical and mechanical property is widely used in the manufacture of indoor and outdoor decoration, sound equipment, top-grade furniture etc..It is used as floor base material in recent years, directly It connects and is processed into consolidated floor and composite floor board, the welcome by the majority of consumers.
China's Fibreboard Production enterprise majority is greater than 0.65g/cm with production density3Middle and higher density fiberboard based on, it is close Degree is in 0.45~0.65g/cm3The low density fiberboard of range but rarely has production.Existing low density fiberboard manufacturing technology, mesh Situations such as preceding no national standard, and there are common technology bottleneck, unstable product quality.Therefore manufacturer is few, connects in batches The enterprise of continuous production is with regard to less.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is disclose a kind of production of low density fiberboard Technique.
The invention is realized by the following technical scheme.
A kind of production technology of low density fiberboard, the technique are continuous press flat-press process, comprising: the preparation of fiber → Sizing and dry → mating formation post-processed with precompressed → plate hot pressing → semi-finished product after through inspection, sawing, be packaged to obtain the final product, in which:
In the preparation section of the fiber, defibrator process after chip steaming softening, fiber bulk density is 51~55kg/m3
In the sizing and drying process, wood fibre into first applying adhesive before drying duct, resin added is 215~ 225kg/m3;80~100 DEG C of dry 5.0~10.0s after sizing, moisture content of the raw material is 7.5~10.5%;
Described to mat formation in prepressing procedures, for feed bin temperature at 40~50 DEG C, fibre morphology is partially thin when mating formation, close to powder Shape.
In the more excellent disclosed example of the present invention, in the preparation section of the fiber, 80~90 DEG C after washing of the wood chip after cutting 2.5~3.0min of pre-cooked, then through 7.5~8.5bar, the vapour cooking of 160~165 DEG C of temperature 1.8~2.5min of progress;It is excellent 85 DEG C of pre-cooked 2.8min are selected, then through 8.0bar, the vapour cooking of 163 DEG C of temperature progress 2.3min.
In the more excellent disclosed example of the present invention, described to mat formation in prepressing procedures, fiber is mated formation through machinery with 115~165bar's Pressure carries out slab precompressed, and carries out edging to slab.
In the more excellent disclosed example of the present invention, in the semi-finished product postprocessing working procedures, semifinished sheet is in 25~30 DEG C of temperature, wet Spend 50~60% 24~48h of constant temperature and humidity.
In the more excellent disclosed example of the present invention, in the sizing and drying process, the adhesive is E of the molar ratio less than 1.01 The cyanurotriamide modified urea resin adhesive of grade, self-control.
In the more excellent disclosed example of the present invention, in the semi-finished product postprocessing working procedures, enter after semifinished sheet constant temperature and humidity 36h Later process.
The present invention is prepared in existing medium/high density production line using higher temperature, the process parameter control of pressure Density is lower than 650 kilograms every cubic metre of low density fiberboard, and obtained low density fiberboard is low with density, load-bearing property is good Characteristic, by veneer, spray painting processing after become building decoration decoration panel, applied to the partition of furniture, wall, skirting, work The fields such as skill product, Furniture manufacture, interior decoration.
Beneficial effect
The method disclosed in the present can save wood fibre 100kg/m compared with common medium density fibre board (MDF)3, improve 15% or more timber resources utilization rate.Lumber consumption, power consumption, sewage and exhaust gas discharge are more advantageous, and since this is low close Spend light-weight, the manpower consumption that can also reduce carrying and the transportation cost of fiberboard.Timber resources, protecting ecology can significantly be saved Environment reduces production cost and transportation cost, while having expanded the structure and application field of wood-based panel product.
Specific embodiment
The following describes the present invention in detail with reference to examples, so that those skilled in the art more fully understand this hair It is bright, but the invention is not limited to following embodiments.
Unless otherwise defined, term (including scientific and technical terminology) used herein above should be construed as having as belonging to the present invention The identical meaning that those skilled in the art are commonly understood by.It will also be understood that term used herein above should be explained To have the meaning consistent with their meanings in the content of this specification and the relevant technologies, and should not be with idealization Or excessive form is explained, unless expressly so limiting here.
Following embodiment is implemented on the production line of existing medium/high density board.
Embodiment 1
9SLP2 low-density fibre board production technology and process control are as follows:
Using E1-96+4 glue production 9SLP2 low density fiberboard, plain plate thickness control 9.6mm, density domination 635~ 645kg/m3(no more than 650kg/m3), 220~225kg/m of glue consumption control3Left and right, paraffin consumption control 6.3kg/m3
Production technology such as the following table 1:
Table 1
It is position control that hot pressing pressure, which see the table below 2:0,1,32~34,35~37,38~41,42~44, remaining frame is Pressure control.
Table 2
Sampling inspection results such as the following table 3:
Table 3
Index request such as the following table 4:
Table 4
Embodiment 2
11.5SLP2 low-density fibre board production technology and process control are as follows:
11.5SLP2 low density fiberboard is produced using E1-96+2 glue, plain plate thickness controls 12.15mm, density domination 635 ~645kg/m3(no more than 650kg/m3), 215~220kg/m of glue consumption control3Left and right, paraffin consumption control 6.3kg/m3
Production technology such as the following table 5:
Table 5
It is position control that hot pressing pressure, which see the table below 6:0,1,32~34,35~37,38~41,42~44, remaining frame is Pressure control.
Table 6
Sampling inspection results such as the following table 7:
Table 7
Index request such as the following table 8:
Table 8
As can be known from the above table, the low density fiberboard index obtained by the present invention reaches standard.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalent structure or equivalent flow shift made by bright specification is applied directly or indirectly in other relevant technical fields, Similarly it is included within the scope of the present invention.

Claims (7)

1. a kind of production technology of low density fiberboard, the technique is continuous press flat-press process, comprising: the preparation of fiber → apply Glue and drying → mat formation with after precompressed → plate hot pressing → semi-finished product post-processing through inspection, sawing, be packaged to obtain the final product, feature exists In:
In the preparation section of the fiber, defibrator process after chip steaming softening, fiber bulk density is 51~55 kg/m3
In the sizing and drying process, wood fibre into first applying adhesive before drying duct, resin added is 215~ 225kg/m3;80~100 DEG C of dry 5.0~10.0s after sizing, moisture content of the raw material is 7.5~10.5%;
Described to mat formation in prepressing procedures, for feed bin temperature at 40~50 DEG C, fibre morphology is partially thin when mating formation, close to powdered.
2. the production technology of low density fiberboard according to claim 1, it is characterised in that: the preparation section of the fiber In, wood chip after cutting 80~90 DEG C of 2.5~3.0min of pre-cooked after washing, then through 7.5~8.5bar, temperature 160~165 DEG C carry out 1.8~2.5min vapour cooking.
3. the production technology of low density fiberboard according to claim 1, it is characterised in that: the preparation section of the fiber In, wood chip after cutting preferably 85 DEG C of pre-cooked 2.8min's after washing, then through 8.0bar, 163 DEG C of temperature progress 2.3min Vapour cooking.
4. the production technology of low density fiberboard according to claim 1, it is characterised in that: described to mat formation and prepressing procedures In, fiber is mated formation through machinery carries out slab precompressed with the pressure of 115~165bar, and carries out edging to slab.
5. the production technology of low density fiberboard according to claim 1, it is characterised in that: the semi-finished product postprocessing working procedures In, semifinished sheet is in 25~30 DEG C of temperature, 50~60% 24~48h of constant temperature and humidity of humidity.
6. the production technology of low density fiberboard according to claim 1, it is characterised in that: the sizing and drying process In, the adhesive is E of the molar ratio less than 1.01The cyanurotriamide modified urea resin adhesive of grade, self-control.
7. the production technology of low density fiberboard according to claim 1, it is characterised in that: the semi-finished product postprocessing working procedures In, later process is entered after semifinished sheet constant temperature and humidity 36h.
CN201811517143.4A 2018-12-12 2018-12-12 A kind of production technology of low density fiberboard CN109514685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811517143.4A CN109514685A (en) 2018-12-12 2018-12-12 A kind of production technology of low density fiberboard

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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1792589A (en) * 2005-11-23 2006-06-28 吴绍良 Method for mfg. high, middle and low density board by bamboo material
WO2007012350A1 (en) * 2005-07-27 2007-02-01 Kronospan Technical Company Ltd. Method for production of wood material articles with low emissions of chemical compounds
CN102152372A (en) * 2011-01-18 2011-08-17 福建省永安林业(集团)股份有限公司 Preparation method of low-density fiberboards
CN102504557B (en) * 2011-10-08 2013-10-23 福建农林大学 Low-density wood-plastic composite shaving board and manufacture method thereof
CN104669395A (en) * 2015-02-14 2015-06-03 广西丰林木业集团股份有限公司 Manufacture method of low-density fiberboard

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007012350A1 (en) * 2005-07-27 2007-02-01 Kronospan Technical Company Ltd. Method for production of wood material articles with low emissions of chemical compounds
CN1792589A (en) * 2005-11-23 2006-06-28 吴绍良 Method for mfg. high, middle and low density board by bamboo material
CN102152372A (en) * 2011-01-18 2011-08-17 福建省永安林业(集团)股份有限公司 Preparation method of low-density fiberboards
CN102504557B (en) * 2011-10-08 2013-10-23 福建农林大学 Low-density wood-plastic composite shaving board and manufacture method thereof
CN104669395A (en) * 2015-02-14 2015-06-03 广西丰林木业集团股份有限公司 Manufacture method of low-density fiberboard

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