CN1334181A - Middle-density fibre board and its production method - Google Patents
Middle-density fibre board and its production method Download PDFInfo
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- CN1334181A CN1334181A CN 01126592 CN01126592A CN1334181A CN 1334181 A CN1334181 A CN 1334181A CN 01126592 CN01126592 CN 01126592 CN 01126592 A CN01126592 A CN 01126592A CN 1334181 A CN1334181 A CN 1334181A
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Abstract
A middle-density fibre board is made from mulberry fibres, water-proofing agent and adhesive through cutting mulberry twigs into piece, steaming for softening, adding water-proofing agent, hot grinding, adding adhesive, drying, spreading, pre-pressing, removing edges by sawing and hot pressing. Its advantage is use of cheap mulberry twigs as raw material for low cost.
Description
Technical field
The present invention relates to fiberboard and production method thereof, especially a kind of medium density fibre board (MDF) and production method thereof.
Background technology
Mulberry tree is the perennial woody plant, and China's planting mulberry and breeding silkworm have more than 5000 year history, and silkworm and mulberry production spreads all over the whole nation except that Qinghai, Tibet, mainly be distributed in the Changjiang river, the Zhujiang River, the Huanghe valley.For making mulberry tree keep limitting in great numbers not waning more all the year round, the silkworm raiser will cut mulberry tree and cut down shaping every year.Zhe Beidiqu generally cuts in 5-6 month and cuts down, and one mu of mulberry field is cut the mulberry branch that cuts down and reached more than 7000, and total bar reaches more than the ten thousand metres, and weight reaches about 800 kilograms.Past is as the mulberry branch of agricultural wastes, generally as fuel, but now along with universal day by day in the rural area of the raising of life of farmers level and liquefied gas, most of mulberry branch not only causes serious environmental to pollute and the wasting of resources as offal treatment, also becomes the hidden danger of initiation fire.Mulberry branch has become silkworm and mulberry producing region one big anxious regenerated resources to be developed.And on the other hand; medium density fibre board (MDF) is used widely in industries such as furniture manufacturing, indoor decoration, building, packing, household electrical appliances; but the medium density fibre board (MDF) that uses is all produced with timber at present, and the consumption of a large amount of timber has brought very big influence even heavy damage for the protection of China's Forest Resources and ecological environment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of medium density fibre board (MDF) and production method made from non-wood material thereof, for discarded mulberry branch is sought a new Application and Development field.
For solving the problems of the technologies described above, a kind of medium density fibre board (MDF) of the present invention is fibrous by ramulus mori, contains waterproofing agent and adhesive in the described ramulus mori fiber.
Above-mentioned a kind of medium density fibre board (MDF), the weight content of described adhesive are 16-22%, and the weight content of moisture content is 8.5-11%, and the weight content of described waterproofing agent is 1.0-1.5%.
A kind of production method of medium density fibre board (MDF) adopts the mulberry branch raw material to carry out production and processing, comprises following production stage: 1, the mulberry branch raw material is chipped; 2, the boiling of ramulus mori silver is softening; 3, add waterproofing agent in the ramulus mori silver after boiling is softening; 3, fiber is resolved in defibrator process, adds adhesive at defibrator fiber outlet place; 4, fiber is carried out drying, then with auxilliary type, precompressed, the slab saw limit dressed up of fiber; 5, medium density fibre board (MDF) is also finally made in slab hot pressing.
The production method of above-mentioned a kind of medium density fibre board (MDF), for guaranteeing ramulus mori raw material year-round provision, preceding to chipping, stack storage period long bright mulberry branch and adopt with the sterilizing insecticide mixed liquor or with the wood mould anticorrisive agent and spray the method for handling the back storage, or adopt and will store after the bright branch peeling or the back pkt. of chipping is transported and stored the method for depositing.
The production method of above-mentioned a kind of medium density fibre board (MDF), the moisture content with mulberry branch when chipping is controlled at 40%.
The production method of above-mentioned a kind of medium density fibre board (MDF), adopt drum chipper that mulberry branch is chipped, for making mulberry branch vertically enter drum chipper, mulberry branch comb delivery materials device is installed on the charging port of drum chipper, and this device comprises a unsteady pressure roller, box stall, comb deflector roll and comb deflector roll transmission device.
The production method of above-mentioned a kind of medium density fibre board (MDF) before with ramulus mori silver boiling defibrator process, adopts the method that feeds the 0.2MPa steam in the buffering feed bin earlier it to be carried out pre-thermal softening.
The production method of above-mentioned a kind of medium density fibre board (MDF), the height when fiber is mated formation highly suitably strengthens than mating formation of lumber fibre, and the preformer compression ratio is 54-60%.
The production method of above-mentioned a kind of medium density fibre board (MDF), the resin added in the lumber fibre production method that the resin added when adding adhesive compares will suitably increase 2-5%.
Owing to utilized mulberry branch to come the production and processing medium density fibre board (MDF) in the present invention as raw material; not only found outlet for the regeneration of mulberry branch; make growth of agricultural efficiency; increasing peasant income; simultaneously cheap raw material sources have been found for medium density fibre board (MDF) again; and saved a large amount of timber resources again, help the protection of the forest reserves and the ecological environment of China.
The drawing explanation
Fig. 1 is the production method flow chart of mulberry branch medium density fibre board (MDF);
Fig. 2 is the structural representation of drum chipper mulberry branch comb delivery materials device.
The specific embodiment
As shown in Figure 1, the thick mulberry branch medium density fibre board (MDF) of 12mm, adopt the following step processing:
1, the mulberry branch raw material is processed and stored. Because mulberry branch is all in season of growth of mulberry tree 5-6 month cuts and cuts down, so pentosan, hot water in the branch melt thing and protein content is all higher, Cut mulberry branch under cutting down and very easily be subjected to mushroom and corrode, produces rotten with damage by worms, so mulberry branch cut cut down after Must dry earlier, be deposited in then the ventilation of taking shelter from rain. Stack storage period when longer (more than 3 months), Available 10,%00 kills the mixed liquor of bactericide and 50% chrysanthemum lipid pesticide or uses the wood mould anticorrisive agent (such as the 3%CH mould inhibitor) sprays and processes, and also can adopt the storage with mulberry shoot peeling or the rear pack of chipping Method is to guarantee the annual supply of raw material of production line.
2, the mulberry branch raw material is chipped. The first moisture content of mulberry branch is very big to the impact of chipping, when moisture When rate was lower than 25%, the breakage of ramulus mori silver was very big, chips optimum moisture content about 40%. Storage period The long dried mulberry branch of limit must first trickle before chipping, and enters and chips to meet the requirements of moisture content Workshop section. When mulberry branch adopts general drum chipper 1 to chip, must be in drum chipper 1 charging Mulberry branch comb delivery materials device (as shown in Figure 2) is installed in the port, so that mulberry branch vertically enters drum Formula wood chipping equipment 1. Mulberry branch comb delivery materials device comprises float pressure roller 2, four box stalls 3, a comb The transmission device 5 of deflector roll 4 and comb deflector roll, box stall 3 is rectangle demarcation strips, its top is passed through Bar is fixed on the fixed head of both sides. Mulberry branch is by sealing-tape machine 6, input comb deflector roll 4, through with Comb deflector roll 4 combs of transmission device 5 are led arrangement, make mulberry branch vertically enter box stall 3, float then Pressure roller 2 automatically rises again and falls after rise, compresses the mulberry branch that vertical transport enters, and enters in the wood chipping equipment 1 Swivel moves the section of chipping up and down. The bottom of box stall 3, comb deflector roll 4 and the conveyer belt of sealing-tape machine 6 leave The gap is so that the transmitting moving of sealing-tape machine 6 is unaffected.
3, the wood chip through screening is introduced into the buffer bin that passes into the 0.2MPa steam and carries out pre-thermal softening, Carry out again the boiling defibrator process, to improve the quality of fiber separation. Because the skin toughness of mulberry branch is stronger, will Can improve its defibrator process effect after its preheating. (adopt in The pre-heat treatment and the softening rear waterproofing agent that adds of boiling Directly add in the feed auger of defibrator after the paraffin melting), its consumption is generally in the 1.0-1.5% scope In. The place applies adhesive at the defibrator fiber outlet, and adhesive adopts non-dehydrated urea-formaldehyde resin adhesive, this Sample can not produce sewage in production technology. The product quality indicator of adhesive is: solids content 50 ± 1%, viscosity (20 ℃ time) 20-60Mpa.S, lives at (100 ℃ time) 50-60 second hardening time The property phase is more than 4 hours, and free formaldehyde content is less than 0.3% (4 ℃ time), 1 month storage time with Upper (20 ℃). Consider that mulberry branch is different in size, relatively short thin, therefore, than lumber fibre production Resin added in the method will suitably increase 2-5%.
4, fiber being carried out drying with drier processes. Fiber moisture after dry the processing is to plate The end properties impact is bigger, and general control is between 8.5-11%. The test point of fiber moisture has two Individual, one in fiber drying cyclone separator bottom, one behind spreading machine, and latter's moisture content inspection It is more accurate to survey, and can be used as the foundation that creation data is adjusted.
5, slab sawed limit after dressing up type, precompressed with Solution on Air Forming Equipment with fiber is auxiliary. Because mulberry branch Fibre density is littler, and the height of mating formation should suitably strengthen. In the present embodiment, the fibre of 12mm thick plates Dimension is mated formation and highly is 170mm, and slab thickness is 70mm after the precompressed. The compression ratio of slab preformer Generally at 54-60%.
6, slab hot pressing. The selection of hot pressing temperature mainly according to the kind of the performance of plate, adhesive with And the production efficiency of press decides. When using Lauxite, hot pressing temperature is generally 160-180 ℃. Hot pressing time determine with synthetic resin performance, fiber quality, mat moisture content, hot pressing temperature, Pressure and slab thickness are relevant. The hot pressing time of every 1mm thickness of slab was generally about 20 seconds. More accurate Time can determine by the temperature sensor measurement Atmospheric temperature. Test of many times proves, when When plate core temperature rises to 105-110 ℃, prolong 1-2 minute, press is release on request again, this The time can obtain best properties of product.
7, unload plate, cooling turnover panel, by 1220mm * 2440mm dimension saw limit, stacking, sanding, Check grades and the finished product warehouse-in. Above step is identical with the production method of existing medium density fibre board (MDF).
Claims (10)
1, a kind of medium density fibre board (MDF) by fibrous, contains waterproofing agent and adhesive in the fiber, it is characterized in that, described fiber is the ramulus mori fiber.
2, a kind of medium density fibre board (MDF) as claimed in claim 1, its extra heavy amount are that the weight content of described adhesive is 16-22%, and the weight content of moisture content is 8.5-11%, and the weight content of described waterproofing agent is 1.0-1.5%.
3, the production method of a kind of medium density fibre board (MDF) as claimed in claim 1 comprises following production stage: 1, raw material is chipped; 2, the sheet-shaped material boiling is softening; 3, add waterproofing agent in the sheet-shaped material after boiling is softening; 3, fiber is resolved in defibrator process, adds adhesive at defibrator fiber outlet place; 4, fiber is carried out drying, then with auxilliary type, precompressed, the slab saw limit dressed up of fiber; 5, medium density fibre board (MDF) is made in slab hot pressing; It is characterized in that the raw material that is adopted in this production method is a mulberry branch.
4, the production method of a kind of medium density fibre board (MDF) as claimed in claim 3 is characterized in that,, stacking storage period long bright mulberry branch preceding to chipping adopts a kind of storage the in the following method: (1) sprays the storage of processing back with the sterilizing insecticide mixed liquor; (2) spray the storage of processing back with the wood mould anticorrisive agent; (3) will store after the bright branch peeling; (4) back pkt. of chipping is transported and stored and is deposited.
As the production method of claim 3 or 4 described a kind of medium density fibre board (MDF)s, it is characterized in that 5, the moisture content with mulberry branch when chipping is controlled at 40%.
6, as the production method of right 3 or 4 described a kind of medium density fibre board (MDF)s, it is characterized in that, adopt drum chipper that mulberry branch is chipped, mulberry branch comb delivery materials device is installed on the charging port of described drum chipper, and this device comprises a unsteady pressure roller, box stall, comb deflector roll and comb deflector roll transmission device.
7, as the production method of claim 3 or 4 described a kind of medium density fibre board (MDF)s, it is characterized in that, before boiling that mulberry branch is cut into slices is softening, earlier it is carried out pre-thermal softening.
8, the production method of a kind of medium density fibre board (MDF) as claimed in claim 7 is characterized in that, adopts the method that feeds the 0.2MPa steam in the buffering feed bin that mulberry branch is carried out pre-thermal softening.
As the production method of claim 3 or 4 described a kind of medium density fibre board (MDF)s, it is characterized in that 9, the height when fiber is mated formation highly suitably strengthens than mating formation of lumber fibre, the preformer compression ratio is 54-60%.
As the production method of claim 3 or 4 described a kind of medium density fibre board (MDF)s, it is characterized in that 10, the resin added in the lumber fibre production method that the resin added when adding adhesive compares will suitably increase 2-5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01126592 CN1235728C (en) | 2001-08-30 | 2001-08-30 | Middle-density fibre board and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01126592 CN1235728C (en) | 2001-08-30 | 2001-08-30 | Middle-density fibre board and its production method |
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| CN1334181A true CN1334181A (en) | 2002-02-06 |
| CN1235728C CN1235728C (en) | 2006-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 01126592 Expired - Fee Related CN1235728C (en) | 2001-08-30 | 2001-08-30 | Middle-density fibre board and its production method |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330472C (en) * | 2003-10-23 | 2007-08-08 | 吉发 | Production process of regenerated medium density fiber board |
| CN101450503A (en) * | 2008-12-31 | 2009-06-10 | 郑林义 | Wood-bamboo straw fiberboard and composite board and post wet-method production technique |
| CN101298159B (en) * | 2008-06-17 | 2010-06-02 | 大亚科技股份有限公司 | Processing technique of medium density fiber plate suitable for routing board |
| CN101116993B (en) * | 2006-07-31 | 2010-06-23 | 三菱自动车工业株式会社 | Lining layer for vehicle roof |
| CN101804653A (en) * | 2010-04-09 | 2010-08-18 | 宾阳县田园农业开发有限公司 | Method for manufacturing fireproof density plates by using mulberry branches |
| CN101570034B (en) * | 2009-05-27 | 2011-07-20 | 江苏福鑫木业有限公司 | Process for producing poplar-branch formaldehyde-free density boards |
| CN102335947A (en) * | 2011-09-21 | 2012-02-01 | 福建省永安林业(集团)股份有限公司 | Method for preparing medium density fiberboard by using microwave to pre-heat |
| CN102398295A (en) * | 2011-11-29 | 2012-04-04 | 宁波蓝鼎电子科技有限公司 | Method for preparing fiber board with low-content formaldehyde |
| CN101544011B (en) * | 2009-05-08 | 2012-05-09 | 李成全 | Preparation method for producing wood board or laminated timber |
| US8337923B2 (en) | 2003-08-22 | 2012-12-25 | Dupont Nutrition Biosciences Aps | Encapsulated antimicrobial material |
| CN103612313A (en) * | 2013-12-06 | 2014-03-05 | 湖州优洛新材料科技有限公司 | Recyclable environment-friendly mulberry fiber board |
| CN103612314A (en) * | 2013-12-06 | 2014-03-05 | 湖州优洛新材料科技有限公司 | Mulberry fiber composite board |
| CN104175382A (en) * | 2014-08-25 | 2014-12-03 | 湖北益嘉林业发展有限公司 | Modified fiber board production process |
| CN104337292A (en) * | 2014-09-30 | 2015-02-11 | 何菁 | Frame strip and frame strip producing method |
| CN104385390A (en) * | 2014-11-12 | 2015-03-04 | 广西南宁绿园北林木业有限公司 | Method for producing density board by adopting lignin adhesive |
| CN104441104A (en) * | 2014-11-12 | 2015-03-25 | 广西南宁绿园北林木业有限公司 | Method for producing cabinet board through lignin adhesives |
| CN104493944A (en) * | 2014-12-03 | 2015-04-08 | 潘传节 | Processing method of P2 highlight panel |
| CN105666632A (en) * | 2016-01-25 | 2016-06-15 | 新沂市大自然木业有限公司 | Manufacturing method for environment-friendly corrosion prevention medium-density fiberboard for door plate of security door |
| CN105690538A (en) * | 2016-01-25 | 2016-06-22 | 新沂市大自然木业有限公司 | Manufacturing method for environment-friendly inflaming retarding medium density fiberboard for laminate wood flooring |
| CN106476112A (en) * | 2016-12-27 | 2017-03-08 | 浙江农林大学 | A kind of preparation method of Midst density recombinant fiber plate |
| CN107571356A (en) * | 2017-09-08 | 2018-01-12 | 常州市鼎日环保科技有限公司 | A kind of preparation method of burning-resistant medium density fibreboard |
| US10271557B2 (en) | 2003-08-22 | 2019-04-30 | Dupont Nutrition Biosciences Aps | Composition comprising a bacteriocin and an extract from a plant of the Labiatae family |
| CN117900010A (en) * | 2024-03-20 | 2024-04-19 | 兴隆县一通新能源科技有限公司 | Automatic feeding structure of branch pulverizer |
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2001
- 2001-08-30 CN CN 01126592 patent/CN1235728C/en not_active Expired - Fee Related
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8337923B2 (en) | 2003-08-22 | 2012-12-25 | Dupont Nutrition Biosciences Aps | Encapsulated antimicrobial material |
| US10271557B2 (en) | 2003-08-22 | 2019-04-30 | Dupont Nutrition Biosciences Aps | Composition comprising a bacteriocin and an extract from a plant of the Labiatae family |
| CN1330472C (en) * | 2003-10-23 | 2007-08-08 | 吉发 | Production process of regenerated medium density fiber board |
| CN101116993B (en) * | 2006-07-31 | 2010-06-23 | 三菱自动车工业株式会社 | Lining layer for vehicle roof |
| CN101298159B (en) * | 2008-06-17 | 2010-06-02 | 大亚科技股份有限公司 | Processing technique of medium density fiber plate suitable for routing board |
| CN101450503A (en) * | 2008-12-31 | 2009-06-10 | 郑林义 | Wood-bamboo straw fiberboard and composite board and post wet-method production technique |
| CN101544011B (en) * | 2009-05-08 | 2012-05-09 | 李成全 | Preparation method for producing wood board or laminated timber |
| CN101570034B (en) * | 2009-05-27 | 2011-07-20 | 江苏福鑫木业有限公司 | Process for producing poplar-branch formaldehyde-free density boards |
| CN101804653A (en) * | 2010-04-09 | 2010-08-18 | 宾阳县田园农业开发有限公司 | Method for manufacturing fireproof density plates by using mulberry branches |
| CN101804653B (en) * | 2010-04-09 | 2012-04-18 | 宾阳县田园农业开发有限公司 | Method for manufacturing fireproof density plates by using mulberry branches |
| CN102335947A (en) * | 2011-09-21 | 2012-02-01 | 福建省永安林业(集团)股份有限公司 | Method for preparing medium density fiberboard by using microwave to pre-heat |
| CN102398295A (en) * | 2011-11-29 | 2012-04-04 | 宁波蓝鼎电子科技有限公司 | Method for preparing fiber board with low-content formaldehyde |
| CN103612313B (en) * | 2013-12-06 | 2014-12-10 | 湖州优洛新材料科技有限公司 | Recyclable environment-friendly mulberry fiber board |
| CN103612314A (en) * | 2013-12-06 | 2014-03-05 | 湖州优洛新材料科技有限公司 | Mulberry fiber composite board |
| CN103612314B (en) * | 2013-12-06 | 2014-12-10 | 湖州优洛新材料科技有限公司 | Mulberry fiber composite board |
| CN103612313A (en) * | 2013-12-06 | 2014-03-05 | 湖州优洛新材料科技有限公司 | Recyclable environment-friendly mulberry fiber board |
| CN104175382B (en) * | 2014-08-25 | 2016-02-24 | 湖北益嘉林业发展有限公司 | A kind of production technology of modified fibre sheet material |
| CN104175382A (en) * | 2014-08-25 | 2014-12-03 | 湖北益嘉林业发展有限公司 | Modified fiber board production process |
| CN104337292A (en) * | 2014-09-30 | 2015-02-11 | 何菁 | Frame strip and frame strip producing method |
| CN104441104B (en) * | 2014-11-12 | 2016-09-07 | 广西南宁绿园北林木业有限公司 | Use the method that lignin adhesive produces cabinet plate |
| CN104385390A (en) * | 2014-11-12 | 2015-03-04 | 广西南宁绿园北林木业有限公司 | Method for producing density board by adopting lignin adhesive |
| CN104441104A (en) * | 2014-11-12 | 2015-03-25 | 广西南宁绿园北林木业有限公司 | Method for producing cabinet board through lignin adhesives |
| CN104493944A (en) * | 2014-12-03 | 2015-04-08 | 潘传节 | Processing method of P2 highlight panel |
| CN105666632A (en) * | 2016-01-25 | 2016-06-15 | 新沂市大自然木业有限公司 | Manufacturing method for environment-friendly corrosion prevention medium-density fiberboard for door plate of security door |
| CN105690538B (en) * | 2016-01-25 | 2018-01-19 | 新沂市大自然木业有限公司 | A kind of manufacture method of laminated flooring environmental protection flame retardant medium density fibre board (MDF) |
| CN105666632B (en) * | 2016-01-25 | 2018-01-19 | 新沂市大自然木业有限公司 | A kind of manufacture method of antitheft door door-plate environment friendly corrosion protection medium density fibre board (MDF) |
| CN105690538A (en) * | 2016-01-25 | 2016-06-22 | 新沂市大自然木业有限公司 | Manufacturing method for environment-friendly inflaming retarding medium density fiberboard for laminate wood flooring |
| CN106476112A (en) * | 2016-12-27 | 2017-03-08 | 浙江农林大学 | A kind of preparation method of Midst density recombinant fiber plate |
| CN107571356A (en) * | 2017-09-08 | 2018-01-12 | 常州市鼎日环保科技有限公司 | A kind of preparation method of burning-resistant medium density fibreboard |
| CN117900010A (en) * | 2024-03-20 | 2024-04-19 | 兴隆县一通新能源科技有限公司 | Automatic feeding structure of branch pulverizer |
| CN117900010B (en) * | 2024-03-20 | 2024-06-07 | 兴隆县一通新能源科技有限公司 | Automatic feeding structure of branch pulverizer |
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