CN101332622A - Artificial board manufactured by paper-making sludge and manufacture method thereof and deodorization method - Google Patents
Artificial board manufactured by paper-making sludge and manufacture method thereof and deodorization method Download PDFInfo
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- CN101332622A CN101332622A CNA2008101159077A CN200810115907A CN101332622A CN 101332622 A CN101332622 A CN 101332622A CN A2008101159077 A CNA2008101159077 A CN A2008101159077A CN 200810115907 A CN200810115907 A CN 200810115907A CN 101332622 A CN101332622 A CN 101332622A
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Abstract
The invention discloses an artificial plate which is manufactured by paper mill sludge and a preparation method of the artificial plate. The main raw material of the artificial plate is the paper mill sludge and phenol formaldehyde resin adhesive; the artificial plate of the invention characterized in that the method comprises the steps as follows: 1) drying the sludge; 2) grinding the sludge; 3) secondary drying; 4) sizing; 5) paving; 6) hot pressing gluing; 7) testing the performance of the finished product after the finished product is cooled. The invention also discloses a deodorization method of the artificial plate and comprises the detailed steps as follows: the active carbon and the artificial plate are arranged into a sealed container for 3 weeks. The artificial plate uses the paper mill sludge as the main raw material to prepare the artificial plate, has simple manufacture and low cost, leads the paper mill sludge of the paper mill to be effectively disposed, and has certain active effect on the environmental pollution renovation at the same time.
Description
Technical field
The present invention relates to a kind of wood-based plate and manufacture method thereof and deodorizing method, refer to a kind of paper mill sludge wood-based plate and preparation method thereof and deodorizing method especially.
Background technology
Paper mill sludge one is to being the byproduct that makes sewage treatment plant's headache.Because sludge of sewage treatment plants contains noxious material and heavy metal, landfill is later on polluted underground water.According to environmental administration's monitoring, 1m
3Paper mill sludge causes crops total crop failure in tens meters scopes of periphery, and underground water can't be drunk.So both waste many soils, can not fundamentally solve secondary pollution problem again.On the other hand, because the landfill yard relative shortage, domestic many paper plants mud is arbitrarily thrown aside or to abuse phenomenon without harmless treatment on the farmland very general, causes new environmental pollution, and ecological risk is increasing." ecological safety " is the important component part of national security, is the basis of maintaining a national economy social sustainable development.The incineration treatment method equipment investment is big, and the incinerator that need involve great expense also will consume a large amount of fuel, is irrational from utilization of resources angle, and burns and cause secondary pollution.How paper mill sludge is carried out scientific and reasonable improvement,, recycle renewable resource to reduce the pollution treatment gross investment to greatest extent, turn waste into wealth, make pollution treatment energy extra earning, produce positive benefit, this is that domestic and international expert dreams of, the common hot issue of paying close attention to of pollution treatment enterprise.
At present, along with the raising day by day of China's living standards of the people, China construction and decoration market and furniture manufacturing industry are more and more faster to wood-based plate growth of requirement speed.According to update statistics, the total output of the big wood-based plate kind of China 2003 four (glued board, wood-based plate, particieboard, core-board) has reached record-breaking 4,500 ten thousand m
3, wherein glued board output is 1,700 ten thousand m
3, middle density artificial board output is 1,300 ten thousand m
3, particieboard output 5,000,000 m
3, core-board output is 1,000 ten thousand m
32004 production capacities of being only middle density artificial board just increase about 40%.Although the development of the wood-based panel industry of China is very fast, output improves constantly, and the occupancy volume per person only is 0.014m
3Compare still quite low with international consumption per head.Meanwhile, the topmost problem that fast development faced of wood-based panel industry is exactly the supply of raw material problem.
Summary of the invention
At above-mentioned problem, the object of the present invention is to provide a kind of not only environmental protection but also can reduce the wood-based plate and the manufacture method thereof of manufacturing cost.
For achieving the above object, a kind of method of utilizing paper mill sludge to make wood-based plate of the present invention specifically is divided into following steps:
1) drying sludge: paper mill sludge carries out high temperature drying at 105 ℃ to be handled, fully transpiring moisture;
2) mud abrasive dust: the mud after the oven dry grinds to form fine particle as feedstock candidate;
3) secondary drying: at 105 ℃ the mud granule secondary drying in the step 2 is handled, the water content of control mud granule is 3%～5%;
4) applying glue: phenolic resin glue (PF) filters out impurity, admixes the mud granule after handling through step 3 and mixes;
5) mat formation: the mixture that stirs adopts the conventional mode of mating formation tentatively to finalize the design;
6) hot-press gluing: the plank after the preliminary typing carries out conventional hot-press gluing makes its final shaping;
7) cooling back end properties test: the conventional cooling forming of the plank after final shaping the, check warehouse-in at last.
Further, the granularity of mud granule is 5～10 orders or 10～20 orders or 20～40 orders in the step 2.
Further, described phenolic resin glue (PF) mixes for phenolic resins and the water ratio with 1: 1.
Further, described phenolic resin glue adopts 60 eye mesh screens to filter.
Further, the resin added in step 4 and the step 6 is 10%～16% of a raw material gross weight, and hot pressing temperature is 120～160 ℃, and hot pressing time is 4～8 minutes, and pressure is 1MPa.
Further, the paper mill sludge in the step 1 was handled through the deodorizing operation.
Further, the water content after the dry processing of the paper mill sludge in the step 1 is controlled at 2%～3%.
Further, the mode of admixing of the applying glue in the step 4 adopts manual the stirring or the mixer stirring.
The wood-based plate that a kind of paper mill sludge is made, its raw material comprises phenolic resin glue and paper mill sludge, adopts said method to make.
Further, the consumption of described phenolic resin glue is 10%～16%.
A kind of method of dispeling paper mill sludge manufacturing wood-based plate penetrating odor, these method concrete steps are:
1) wood-based plate is put into container;
2) put into wood-based plate by weight greater than 1: 2 active carbon;
3) with seal of vessel;
4) place more than 3 weeks, take out wood-based plate check warehouse-in.
It is the primary raw material of making wood-based plate that the present invention adopts paper mill sludge, makes simply, cheap, makes the paper mill sludge in paper mill be effectively addressed, and pollution has certain positive role to renovating environment simultaneously.
Description of drawings
Fig. 1 makes the flow chart of steps of wood-based plate method for the present invention;
Test test data and the difference of original weight and the design sketch of time weekly that Fig. 2 dispels paper mill sludge wood-based plate penetrating odor method for the embodiment of the invention 4;
Test test data and the difference of front one all weight and the design sketch of time weekly that Fig. 3 dispels paper mill sludge wood-based plate penetrating odor method for the embodiment of the invention 4.
The specific embodiment
Embodiment 1:
As shown in Figure 1, a kind of method of paper mill sludge manufacturing wood-based plate specifically is divided into following steps
1) paper mill sludge carries out high temperature drying processing, fully transpiring moisture at 105 ℃;
2) mud after the oven dry grinds to form fine particle with electrical grinding machine with the parameter that per minute 600 changes, and carries out classification with 5 orders, 10 orders, 20 orders and 40 purpose screen clothes then, and the particle after the classification is standby;
3) at 105 ℃ the mud granule in the step 2 is carried out secondary drying, the water content of control mud granule is 3%～5%;
4) to filter out impurity with 60 eye mesh screens standby for phenolic resin glue (PF), get the phenolic resin glue 10%～16% that filters impurity and admix 5～10 orders or 10～20 orders or 20～40 purpose mud granules after the classification, make simultaneously and stir by hand or draw and feels and mix evenly side that mixer stirs;
5) mixture that stirs is put into the mould preliminarily forming of mating formation;
6) plank behind the preliminarily forming is with 120～160 ℃ of temperature, and hot-press gluing is 4～8 minutes under the pressure 1MPa situation, makes its final shaping;
7) the conventional cooling forming of plank after final shaping the, check warehouse-in at last;
Embodiment 2:
As shown in Figure 1, a kind of method of paper mill sludge manufacturing wood-based plate specifically is divided into following steps:
1) paper mill sludge carries out high temperature drying processing, fully transpiring moisture at 105 ℃;
2) mud after the oven dry grinds to form fine particle with electrical grinding machine with the parameter that per minute 600 changes, and does not carry out gradation, and the water content of control mud granule is 3%～5% during use;
3) at 105 ℃ the mud granule in the step 2 is carried out secondary drying, the water content of control mud granule is 3%～5%;
4) to filter out impurity with 60 eye mesh screens standby for phenolic resin glue (PF), gets phenolic resin glue 10～16% and admix the mud granule that grinds out in the step 2, makes simultaneously to stir by hand or mode that mixer stirs stirs;
5) mixture that stirs is put into the mould preliminarily forming of mating formation;
6) plank behind the preliminarily forming is with 120～160 ℃ of temperature, and hot-press gluing is 4～8 minutes under the pressure 1MPa situation, makes its final shaping;
7) the conventional cooling forming of plank after final shaping the, check warehouse-in at last.
Resin added described in the present invention is the half point ratio that pure solid gum accounts for raw material, for example resin added accounts for the meaning of raw material gross weight 10%～16% and is exactly, suppose that raw material (thinks over dry, be that moisture content is 0) have 100 to restrain, the solid gum amount that needs to add is 10～16 grams, because the solids content of glue is 50%, so practical operation need add glue (1: 1 proportioning of solid gum and water) 20～32 grams.
Table 1
Table 2
Embodiment 3:
The wood-based plate that a kind of paper mill sludge is made, its raw material comprises phenolic resin glue and paper mill sludge particle, described paper mill sludge particle is respectively a kind of in 5～10 orders, 10～20 orders or 20～40 orders, and adopt method for preparing to be shaped, a kind of mud granule of every correspondence is selected different technological parameters for use in the applying glue process with in the hot pressing, prepare the paper mill sludge of being put down in writing in the as above table 1 and make wood-based plate, wherein table 2 is the various performance indications of corresponding forming board in the table 1.
Embodiment 4:
A kind of method of dispeling paper mill sludge manufacturing wood-based plate penetrating odor, these method concrete steps are:
1) wood-based plate is put into container;
2) put into wood-based plate by weight greater than 1: 2 active carbon;
3) with seal of vessel;
4) place more than 3 weeks, take out wood-based plate check warehouse-in.
Get two paper mill sludge wood-based plate blockages, be weighed as 25.3789g (representing), 25.2027g (representing) with 2P with 1P; 2 layers of bundles of active carbon, fasten sack, 60.9042g (representing with C) weighs, can guarantee that amounts of activated carbon is enough, place volume to be about the 200ml drier active carbon and wood-based plate, the two is opened with porcelain dividing plate lattice with holes, bore dia is 1cm, the drier edge of opening uses Seal Oil to seal, and drier is placed sealed bag, can guarantee air-tightness.Other gets the same size blockage, the 25.0923g that weighs (representing) with 3P, directly place indoor, to do contrast.
The examination index is the active carbon weightening finish, and mud wood-based plate loss of weight records the speed that increases weight with loss of weight simultaneously.One week test, one secondary data tested for 18 weeks altogether.In addition, use the mode of olfactometry to come mud wood-based plate smell is simply judged.
Weight change, i.e. the difference of test data weekly and original weight the results are shown in Table 3 and Fig. 5-8; Weight change, i.e. the difference of test data weekly and front one all weight the results are shown in Table 4 and Fig. 5-9.Which week all numerical tables show, as 1 the 1st week of expression.
Table 3
Table 4
From table 3 and Fig. 2 as can be known, along with the time increases, active carbon weight increases, the weight of mud wood-based plate constantly reduces, and the two was more or less the same before the 10th week, may be owing to the weather heating after the 10th week, air humidity increases reason, and active carbon weight increases the minimizing greater than mud wood-based plate weight.Place indoor mud wood-based plate weight to descend generally, but show a kind of fluctuation, illustrate that influenced by prevailing circumstances bigger, place the weightless rule of two blocks of mud wood-based plates of drier identical, and all greater than directly depositing in indoor mud wood-based plate, illustrate that active carbon works to mud wood-based plate weightlessness really, that is to say that volatile organic matter is in a large number by charcoal absorption in the wood-based plate.And the smell of mud wood-based plate, from the 3rd week of placing, stink obviously reduces, but a kind of taste that turns sour is arranged, and this is the taste that organic matter (not comprising protein) decomposes, and since the 5th week, tart flavour is also few, and the smell of mud wood-based plate reduces, and remains to for 18 weeks.
From table 4 and Fig. 3 as can be known, on weightless speed, placing the weightless speed of indoor mud wood-based plate also is undaform, and rule is more random, does not therefore draw on figure.Place interior mud wood-based plate weightlessness of drier and active carbon to increase weight and all show as, preceding 3 weeks are comparatively obvious, and the minimizing of back is comparatively steady, generally speaking all reducing, but 18 all interior never having arrive zero always.Therefore can infer that the thing that the mud wood-based plate is emitted in the time of the front is more, what put later lacks, and discharges from outside to inside because organic matter discharges, and discharges difficult more more to the inside.
In sum, the wood-based plate that adopts this kind method to prepare has solved paper mill sludge and has handled difficult problem, and makes simple, cheap, simultaneously guarantee the intensity of sheet material again, and after shaping, added penetrating odor not only environmental protection but also safety that the deodorizing operation has been dispeled the paper mill sludge wood-based plate.
The above-mentioned description of the wood-based plate and the manufacture method thereof of this paper mill sludge manufacturing being carried out with reference to embodiment; be illustrative rather than determinate; can be made into different specifications with the series division; therefore in the variation and the modification that do not break away under the general plotting of the present invention, should belong within protection scope of the present invention.
Claims (10)
1. method of utilizing paper mill sludge to make wood-based plate is characterized in that this method specifically is divided into following steps:
1) drying sludge: paper mill sludge carries out high temperature drying at 105 ℃ to be handled, fully transpiring moisture;
2) mud abrasive dust: the mud after the oven dry grinds to form fine particle;
3) secondary drying: mud granule is handled at 105 ℃ of following secondary dryings, and the water content of control mud granule is 3%～5%;
4) applying glue: phenolic resin glue filters out impurity, admixes the mud granule after handling through step 3 and stirs;
5) mat formation: the mixture that stirs adopts the conventional mode of mating formation to carry out preliminarily forming;
6) hot-press gluing: the plank behind the preliminarily forming carries out conventional hot-press gluing makes its final shaping;
7) the conventional cooling forming of plank after final shaping the, check warehouse-in at last.
2. a kind of method of utilizing paper mill sludge to make wood-based plate as claimed in claim 1 is characterized in that the granularity of mud granule feedstock candidate is 5～10 orders or 10～20 orders or 20～40 orders in the step 2.
3. a kind of method of utilizing paper mill sludge to make wood-based plate as claimed in claim 1 is characterized in that, to be phenolic resins solid and water mix with 1: 1 ratio described phenolic resin glue.
4. a kind of method of utilizing paper mill sludge to make wood-based plate as claimed in claim 1 is characterized in that described phenolic resin glue adopts 60 eye mesh screens to filter.
5. a kind of method of utilizing paper mill sludge to make wood-based plate as claimed in claim 1, it is characterized in that the resin added in step 4 and the step 6 is 10%～16% of a raw material gross weight, hot pressing temperature is 120～160 ℃, hot pressing time is 4～8 minutes, and pressure is 1MPa.
6. a kind of method of utilizing paper mill sludge to make wood-based plate as claimed in claim 1 is characterized in that the paper mill sludge in the step 1 was handled through the deodorizing operation.
7. a kind of method of utilizing paper mill sludge to make wood-based plate as claimed in claim 1 is characterized in that, the water content after the dry processing of the paper mill sludge in the step 1 is controlled at 2%～3%.
8. a wood-based plate that utilizes paper mill sludge to make is characterized in that its raw material comprises phenolic resin glue and paper mill sludge, adopts manufacture method as claimed in claim 1 to be prepared from.
9. wood-based plate as claimed in claim 8 is characterized in that, described phenolic resin glue consumption is 10%-16%.
10. the deodorizing method of a wood-based plate as claimed in claim 8 is characterized in that, these method concrete steps are:
1) wood-based plate is put into container;
2) put into wood-based plate by weight greater than 1: 2 active carbon;
3) with seal of vessel;
4) place more than 3 weeks, take out wood-based plate check warehouse-in.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101159077A CN101332622A (en) | 2008-06-30 | 2008-06-30 | Artificial board manufactured by paper-making sludge and manufacture method thereof and deodorization method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101159077A CN101332622A (en) | 2008-06-30 | 2008-06-30 | Artificial board manufactured by paper-making sludge and manufacture method thereof and deodorization method |
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| CN101332622A true CN101332622A (en) | 2008-12-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624015A (en) * | 2018-12-29 | 2019-04-16 | 上海昶法新材料有限公司 | A kind of environment-friendly type density board and preparation method thereof of papermaking waste production |
| CN110893638A (en) * | 2018-09-12 | 2020-03-20 | 上海昶法新材料有限公司 | Environment-friendly density board and manufacturing method thereof |
-
2008
- 2008-06-30 CN CNA2008101159077A patent/CN101332622A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893638A (en) * | 2018-09-12 | 2020-03-20 | 上海昶法新材料有限公司 | Environment-friendly density board and manufacturing method thereof |
| CN109624015A (en) * | 2018-12-29 | 2019-04-16 | 上海昶法新材料有限公司 | A kind of environment-friendly type density board and preparation method thereof of papermaking waste production |
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Application publication date: 20081231 |