CN103482948A - Production method of panel - Google Patents
Production method of panel Download PDFInfo
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- CN103482948A CN103482948A CN201310353432.6A CN201310353432A CN103482948A CN 103482948 A CN103482948 A CN 103482948A CN 201310353432 A CN201310353432 A CN 201310353432A CN 103482948 A CN103482948 A CN 103482948A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses a production method of a panel. The method comprises the following steps: drying paper mill sludge, paint slag and chemimechanical pulp black and white pulp residue, wherein the dryness of the paper mill sludge is more than 80%, the dryness of the paint slag is controlled at 80-90%, and the dryness of the chemimechanical pulp black and white pulp residue is controlled at 80-90%; mixing an adhesive with dried paper mill sludge, paint slag and chemimechanical pulp black and white pulp residue; molding the mixed raw materials to obtain a certain size of panel. By adopting the production method, the panel is produced by using papermaking wastes; environmental pollution can be reduced; comprehensive economic benefits are improved; the production environment of the paper-making industry is cleaner; the produced panel does not emit a peculiar smell.
Description
Technical field
The present invention relates to a kind of production method of sheet material, particularly a kind of production method of the sheet material of being made by papermaking waste.
Background technology
Paper industry has the characteristics such as pollution is relatively large, and water consumption is large, and waste residue is many.Therefore controlling its new cleanproduction process that pollutes, carries out saving water, the zero release of pursuit waste residue is also one of important process of the sector development.At present, regardless of the advanced degree of production technique, still in paper-making process, can produce the solid waste such as waste residue.The way that industry is general is directly to abandon these solid waste, such as mode processing of taking landfill etc.But comprise fiber, filler etc. in these waste residues, directly abandon and easily cause secondary pollution.Landfill is to soil, and in waste residue, contained fiber, filler etc. very easily cause again the hardening soil, make second ploughing difficulty in landfill soil very large.
At present, industry has and adopts papermaking waste to make the way that the material such as sheet material is recycled papermaking waste.For example, the Chinese invention patent application that the application number that the applicant applied on November 27th, 2012 is 201210489471.4, provide a kind of sheet material of being made by papermaking waste and production method thereof, quotes the reference as patent of the present invention here.Yet the material formed by these papermaking waste manufactures in use gives out stink, impact is used.
Summary of the invention
In view of this, be necessary to provide a kind of production method of the sheet material of being made by papermaking waste, the sheet material that this production method is made in use can not give out peculiar smell.
A kind of production method of sheet material, comprise the steps:
Dry paper mill sludge, coating waste residue and change machine slurry black and white screenings, wherein be controlled at the mass dryness fraction of paper mill sludge more than 80%, and the mass dryness fraction of coating waste residue is controlled to 80-90%, and the mass dryness fraction of change machine slurry black and white screenings is controlled to 80-90%;
Mixed glue and dried paper mill sludge, coating waste residue and change machine slurry black and white screenings; And
By mixed material forming to obtain the sheet material of certain size.
This sheet material can be used for making the object of various packings, carrying in industrial production, such as pallet etc.
The present invention, by utilizing papermaking waste and adopting aforesaid method to produce sheet material, has following beneficial effect:
(1) comprehensive utilization of papermaking waste reduces environmental pollution.
Traditional landfill method, not only can polluted water resources, and the fiber contained in waste residue mud, colloid, very easily causes the hardening soil, and second ploughing difficulty in landfill soil is very large.By the comprehensive utilization to papermaking waste, can significantly reduce the pollution to environment, especially waste water treatment; realize the waste sludge from paper mill zero release, reduce pollutant emission, there is environmental benefit and social benefit preferably; to water body around improving, preserve the ecological environment significant.
(2) comprehensive utilization of papermaking waste improves comprehensive income.
By the comprehensive utilization technique of papermaking waste, can greatly improve the added value of product of papermaking waste, original environmentally harmful waste, by processing, be processed into the high value added product that meets different needs, is turned waste into wealth, improve the comprehensive income of enterprise.Wherein, the waste residue utilization rate can reach 100%, and wastewater discharge can reduce 20%, according to the industrial scale of enterprise, can have different but considerable economic benefit.
(3) the comprehensive utilization cleaner production of papermaking waste.
Comprehensive utilization through papermaking waste, can improve the sealing level of production greatly, reduces the discharge of waste water, finally realizes the zero release of paper waste, reduces the processing load of factory effluent, makes production process more clean.
(4) sheet material that papermaking waste is made meets service requirements.
The sheet material that this sheet material not only can replace original timber to make is able to normal use, and, by the drying treatment to raw material, has eliminated the peculiar smell that sheet material in use distributes, and can put for a long time, without customer complaint, worries.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
The accompanying drawing explanation
Fig. 1 is the structural representation of the sheet material of one embodiment of the invention.
Fig. 2 is the part-structure schematic diagram of the sheet material of another embodiment of the present invention.
The main element nomenclature
| The |
10 |
| |
12 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
The production method of sheet material provided by the invention, its prepared using papermaking waste.The raw material of this sheet material forms and comprises paper mill sludge, coating waste residue, change machine slurry black and white screenings and tackiness agent.
Paper mill sludge is to the body paper waste water that the produces gained after treatment of manufacturing paper with pulp in process.Paper mill sludge generally is divided into primary sludge and secondary sludge.Primary sludge refers to the throw out produced in waste water coagulation process.Secondary sludge refers to from the throw out of secondary sedimentation basins or settling region discharge.According to the difference of precipitation number of times or wastewater treatment step, this paper mill sludge also can have more kind, such as three heavy mud etc.The main component of paper mill sludge is fiber and filler etc.Wherein fiber be in body paper is manufactured paper with pulp process, by the part fiber in paper making raw material, with waste water, discharged together and.Filler is, due to various fillers such as can using starch in body paper is manufactured paper with pulp process, the body paper generated is carried out to modification, and these fillers also have part to discharge with waste water.Fibre weight in paper mill sludge accounts for 80%, and filler weight accounts for 20%.
The coating waste residue is the waste residue by the coating station gained.Coating station be mainly body paper to making at surface coated one coating to form White Board.The coating waste residue is the waste produced at coating station by these coating.Due to moulding of paper, so do not have fibre composition in the coating waste residue, the coating waste residue is mainly that the composition by various coating such as blob of viscose, starch, pigment forms.
Change machine slurry black and white screenings is the screenings produced when the raw materials such as wood chip of processingization machine slurry.Wherein so-called " black wash slag " is mainly to clean the wood chip gained, because the water color that wood chip cleans is darker, should be commonly called as change machine slurry black wash slag than the waste residue in dark colour water.So-called " white screenings " is mainly to use pharmaceutical chemicals to soak the wood chip gained by back segment, and due to the water ratio that soaks water after wood chip and leading portion and clean wood chip, color is more shallow, thereby the waste residue in the water after this immersion wood chip is commonly called as and starches white screenings for the change machine.
The Main Function of tackiness agent is, when utilizing the above-mentioned raw materials sheet forming, for bonding various raw materials, is beneficial to the combination that produces physics between each raw material.Tackiness agent can be various tackiness agents commonly used in paper industry, such as comprising silica flour, starch etc.
The production method of sheet material provided by the invention comprises the steps:
Dry paper mill sludge, coating waste residue and change machine slurry black and white screenings, wherein, be controlled at the mass dryness fraction of paper mill sludge more than 80%, and the mass dryness fraction of coating waste residue is controlled to 80-90%, and the mass dryness fraction of change machine slurry black and white screenings is controlled to 80-90%;
Mixed glue and dried paper mill sludge, coating waste residue and change machine slurry black and white screenings; And
By the said mixture moulding to obtain the sheet material of certain size.
The paper mill sludge of gained in production process, coating waste residue and these waste residue moisture of change machine slurry black and white screenings are larger, do not meet the mass dryness fraction requirement of manufacturing sheet material, therefore need the first operation through super-dry to make these raw materials meet the mass dryness fraction requirement.In the larger situation of humidity, can also adopt the means of stage drying to make these raw materials meet the mass dryness fraction requirement.In one embodiment, paper mill sludge can be carried out to stage drying timely, at first utilize water extracter to dehydration of papermaking sludge, mass dryness fraction, at 20-25%, is then utilized under dryer or sunlight and is dried and be promoted to mass dryness fraction more than 50%, reheats and is dried to mass dryness fraction more than 80%.
Constantly probe into discovery by the contriver, the existing sheet material that utilizes papermaking waste to make, its reason that gives out stink is that paper mill sludge not easily produces fermentation because of mass dryness fraction.Therefore the production method of sheet material provided by the invention, carry out drying timely by paper mill sludge, and mass dryness fraction risen to more than 80%, to remove or to reduce the factor of generation fermentation.The method of this kind of elimination peculiar smell is easy and simple to handle, and can not bring the unfavorable factors such as cost significantly promotes.
In certain embodiments, its sheet material of producing of sheet production method provided by the invention finally is machined for the pallet of placing pile, for this pallet has the required intensity of original wooden pallet, pass through actual verification, proportioning to raw materials such as paper mill sludges there are certain requirements, and wherein the weight ratio of paper mill sludge is 30-60%, and the weight ratio of coating waste residue is 15-30%, the weight ratio of change machine slurry black and white screenings is 15-35%, and the weight ratio of tackiness agent is 5-10%.Above-mentioned weight ratio is all that dry above-mentioned raw materials reaches the weight ratio after set mass dryness fraction requires.
Further, also be included in mixing before to paper mill sludge, coating waste residue and change machine slurry black and white screenings are broken up the step of pulverizing.These raw materials are pulverized, be conducive to follow-up mix, each raw material is uniformly dispersed.
Further, the step that also comprises cutting is met dimensional requirement to described sheet material revise.Because its shape of the sheet material of moulding, size all are subject to the restriction of the concrete model of mould, as gained sheet material is applied to different occasions, need gained sheet material is carried out to cutting, correction, make it to have and meet concrete required shape, size.
Further, the step that also comprises quality test.Check such as indexs such as the check of the moisture content to gained sheet material, ultimate compression strength.
Further, also comprise the step that described sheet material is carried out disinfection.Consider that sheet material is to be made by papermaking waste, may easily go mouldy, thereby sheet material is carried out disinfection, increase the service life to prevent from going mouldy.
The present invention, by utilizing papermaking waste to produce sheet material, has following beneficial effect:
(1) comprehensive utilization of papermaking waste reduces environmental pollution.
Traditional landfill method, not only can polluted water resources, and the fiber contained in waste residue mud, colloid, very easily causes the hardening soil, and second ploughing difficulty in landfill soil is very large.By the comprehensive utilization to papermaking waste, can significantly reduce the pollution to environment, especially waste water treatment; realize the waste sludge from paper mill zero release, reduce pollutant emission, there is environmental benefit and social benefit preferably; to water body around improving, preserve the ecological environment significant.
(2) comprehensive utilization of papermaking waste improves comprehensive income.
By the comprehensive utilization technique of papermaking waste, can greatly improve the added value of product of papermaking waste, original environmentally harmful waste, by processing, be processed into the high value added product that meets different needs, is turned waste into wealth, improve the comprehensive income of enterprise.Wherein, the waste residue utilization rate can reach 100%, and wastewater discharge can reduce 20%, according to the industrial scale of enterprise, can have different but considerable economic benefit.
(3) the comprehensive utilization cleaner production of papermaking waste.
Comprehensive utilization through papermaking waste, can improve the sealing level of production greatly, reduces the discharge of waste water, finally realizes the zero release of paper waste, reduces the processing load of factory effluent, makes production process more clean.
(4) sheet material that papermaking waste is made meets service requirements.
The sheet material that this sheet material not only can replace original timber to make is able to normal use, and, by the drying treatment to raw material, has eliminated the peculiar smell that original sheet material in use distributes, and can put for a long time, without customer complaint, worries.
Below usining this sheet material specifically introduces the production process of pallet as pallet.
As shown in Figure 1, this pallet comprises that some pin piers 10 reach and the panel 12 of pin pier 10 combinations.The pin pier 10 of this pallet and panel 12 are all to be made by above-mentioned sheet material.This pallet is just being spent paper for carrying, and just spending the paper length and width is 1092mm * 787mm, and therefore, for coordinating the size of just spending paper, the long L of the panel 12 of this pallet, wide W are 1105mm * 800mm.The total height H of pallet is 135mm.Arrange certain altitude be conducive to handbarrow for example fork truck to pallet and on the carrying of article.The long l of pin pier 10, wide w, high h are 100mm * 70mm * 100mm.Pin pier 10 is 9, is dot matrix and is uniformly distributed.Pin pier 10 can first same with it length or strip panel 12 combinations of width, re-lays afterwards the panel 12 that long L, wide W are 1105mm * 800mm.Pallet shown in Fig. 1 be by pin pier 10 below in conjunction with after a strip panel 12, re-lay two-layer panel 12 on it and form.Also can be as shown in Figure 2, above pin pier 10 in conjunction with after mutually perpendicular strip panel 12, then with large-sized panel 12 combinations.The thickness of each panel 12 can determine that making the whole height H of pallet is 135mm according to the concrete number of plies.
The whole Production Flow Chart that utilizes papermaking waste to manufacture above-mentioned pallet can be divided into four workshop sections: material papering section, pressing section, finished product workshop section, auxiliary workshop section.
At material papering section, stage drying paper mill sludge, coating waste residue and change machine slurry black and white screenings, to meet the mass dryness fraction requirement, broken up, pulverized these raw materials afterwards.Then according to both certainty ratios, dried paper mill sludge, coating waste residue and change machine slurry black and white screenings are fully mixed with tackiness agent.
At pressing section, mixed raw material is put into to the in-mold molding of set scale to form the both sheet material of dimensioning.Preferably can adopt hydropress hot-forming.Can also adopt the common moulding means such as laminated into type.
In finished product workshop section, gained sheet material is carried out to cutting, correction, and assembled to form the pallet with above-mentioned size.Afterwards the pallet formed is carried out to the check of the indexs such as intensity.
In auxiliary workshop section, optionally satisfactory pallet is taked the operations such as sterilization, packing.
List the weight proportion ratio of each raw material adopted in different embodiment in following table.The weight proportion ratio of each raw material refers to dried weight ratio.
Through the check, in the various embodiments described above the following parameters of gained pallet and used Wooden pallet compare as shown in the table.
As can be known from the above table, all kinds of parameters of the pallet in above-mentioned each embodiment made by papermaking waste and all kinds of parameters of existing Wooden pallet are more or less the same, and some convergences are identical.
Again by with similar above-mentioned each embodiment made by papermaking waste of method actual verification of Wooden pallet ultimate compression strength acceptance method in the ultimate compression strength of pallet.Wherein existing Wooden pallet ultimate compression strength acceptance method is as shown in the table.
The resistance to compression standard of existing Wooden pallet is to be more than or equal to 3bar, therefore adopts 3bar as test condition.The measuring body mean value of existing Wooden pallet with above-mentioned parameter can reach 3.5bar.
Listed in following table and adopted similar testing method, just regulated the different pressures value, the repeatedly result of test that the pallet in above-mentioned each embodiment made by papermaking waste is done.
The compression test known by above-mentioned test result, that the pallet of embodiment 1,2,3 gained can be 2.5bar by intensity substantially.
It is to be noted, although the resistance to compression standard that the test condition of existing Wooden pallet adopts is 3bar, but from practical application, Wooden pallet with the ultimate compression strength between the 2.5-3bar scope still can bear the paper stack of set weight, and, as carrying tool, its stability of dynamically transporting is also another parameter index.In other words, although the experiment ultimate compression strength of the pallet in the various embodiments described above and existing Wooden pallet may have certain gap, but the ultimate compression strength of considering the pallet in the various embodiments described above can reach 2.5bar substantially, and other factors such as stability in dynamically transporting, the conclusion that can draw is: the pallet in the various embodiments described above can substitute the carrying tool of existing Wooden pallet as set weight paper stack fully in actual applications.
Claims (10)
1. the production method of a sheet material, comprise the steps:
Dry paper mill sludge, coating waste residue and change machine slurry black and white screenings, wherein be controlled at the mass dryness fraction of paper mill sludge more than 80%, and the mass dryness fraction of coating waste residue is controlled to 80-90%, and the mass dryness fraction of change machine slurry black and white screenings is controlled to 80-90%;
Mixed glue and dried paper mill sludge, coating waste residue and change machine slurry black and white screenings; And
By mixed material forming to obtain the sheet material of certain size.
2. the production method of sheet material as claimed in claim 1, it is characterized in that: the step that also comprises cutting is met dimensional requirement to described sheet material revise.
3. the production method of sheet material as claimed in claim 1, is characterized in that: the step that also comprises quality test.
4. the production method of sheet material as claimed in claim 1, is characterized in that: also comprise the step that described sheet material is carried out disinfection.
5. the production method of sheet material as claimed in claim 1, is characterized in that: also be included in the step of before mixing, dried paper mill sludge, coating waste residue and change machine slurry black and white screenings being broken up pulverizing.
6. the production method of sheet material as claimed in claim 1, it is characterized in that: this sheet material is as pallet, and the weight ratio of paper mill sludge is 30-60%, and the weight ratio of coating waste residue is 15-30%, the weight ratio of change machine slurry black and white screenings is 15-35%, and the weight ratio of tackiness agent is 5-10%.
7. as the production method of the described sheet material of any one in claim 1-6 item, it is characterized in that: the weight ratio of paper mill sludge is 30%, and the weight ratio of coating waste residue is 30%, and the weight ratio of change machine slurry black and white screenings is 30%, and the weight ratio of tackiness agent is 10%.
8. as the production method of the described sheet material of any one in claim 1-6 item, it is characterized in that: the weight ratio of paper mill sludge is 60%, and the weight ratio of coating waste residue is 15%, and the weight ratio of change machine slurry black and white screenings is 20%, and the weight ratio of tackiness agent is 5%.
9. as the production method of the described sheet material of any one in claim 1-6 item, it is characterized in that: the weight ratio of paper mill sludge is 45%, and the weight ratio of coating waste residue is 20%, and the weight ratio of change machine slurry black and white screenings is 25%, and the weight ratio of tackiness agent is 10%.
10. as the production method of the described sheet material of any one in claim 1-6 item, it is characterized in that: when paper mill sludge is carried out to drying, at first utilize water extracter to dehydration of papermaking sludge, mass dryness fraction is at 20-25%, then utilize under dryer or sunlight and dry and be promoted to mass dryness fraction more than 50%, reheat and be dried to mass dryness fraction more than 80%.
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| CN201310353432.6A CN103482948A (en) | 2013-08-14 | 2013-08-14 | Production method of panel |
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| CN201310353432.6A CN103482948A (en) | 2013-08-14 | 2013-08-14 | Production method of panel |
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Cited By (1)
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328040A (en) * | 2008-06-30 | 2008-12-24 | 中国林业科学研究院木材工业研究所 | Artificial board manufactured from papermaking sludge, manufacturing method and deodorization method thereof |
| CN102976673A (en) * | 2012-11-27 | 2013-03-20 | 金东纸业（江苏）股份有限公司 | Sheet material and production method thereof |
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2013
- 2013-08-14 CN CN201310353432.6A patent/CN103482948A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328040A (en) * | 2008-06-30 | 2008-12-24 | 中国林业科学研究院木材工业研究所 | Artificial board manufactured from papermaking sludge, manufacturing method and deodorization method thereof |
| CN102976673A (en) * | 2012-11-27 | 2013-03-20 | 金东纸业（江苏）股份有限公司 | Sheet material and production method thereof |
Cited By (1)
| 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 |
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Application publication date: 20140101 |