DE4334200C1 - Process for producing thermally insulating boards and mats (nonwovens) from waste paper - Google Patents

Process for producing thermally insulating boards and mats (nonwovens) from waste paper

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Publication number
DE4334200C1
DE4334200C1 DE19934334200 DE4334200A DE4334200C1 DE 4334200 C1 DE4334200 C1 DE 4334200C1 DE 19934334200 DE19934334200 DE 19934334200 DE 4334200 A DE4334200 A DE 4334200A DE 4334200 C1 DE4334200 C1 DE 4334200C1
Authority
DE
Germany
Prior art keywords
waste paper
nonwovens
paper
thermally insulating
mats
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE19934334200
Other languages
German (de)
Inventor
Hans Dipl Ing Knauth
Isabel Knauth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19934334200 priority Critical patent/DE4334200C1/en
Application granted granted Critical
Publication of DE4334200C1 publication Critical patent/DE4334200C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/18—Waste materials; Refuse organic
    • C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/241—Paper, e.g. waste paper; Paper pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard
    • D21J1/16—Special fibreboard
    • D21J1/20—Insulating board
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Civil Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)

Abstract

The invention relates to a process for producing thermally insulating materials from waste paper by means of a hydromechanical treatment with subsequent drying. Processes for producing or improving insulating materials made of materials containing paper are already known. In the case of the process according to the invention, the waste paper is subjected to a mild hydromechanical treatment. The boards or mats formed therefrom are dried using hot air. The product has a very low specific density, from which a high thermal insulation value results.

Description

Das Anwendungsgebiet der Erfindung ist die Herstellung von Dämmplatten und -vliesen für die Wärmeisolierung in Gebäuden. Wärmedämmplatten werden bisher sowohl aus Holzfasern und -spänen, heute vermehrt aus Glasfasern und Steinwolle herge­ stellt. Die Herstellungsverfahren der Faser- und Spanplatten aus Holz sind energetisch sehr aufwendig und erwirken hohe Dichten mit geringer Isolierleistung.The field of application of the invention is the production of Insulation boards and fleeces for thermal insulation in buildings. So far, thermal insulation boards are made from both wood fibers and chips, today increasingly from glass fibers and rock wool poses. The manufacturing process of fibreboard and particle board made of wood are very energy-intensive and have a high impact Seals with low insulation performance.

Glas- und andere Mineralfasern stehen in dem Verdacht, Krebs zu erzeugen.Glass and other mineral fibers are suspected of being cancer to create.

Verfahren zur Herstellung von Dämmplatten aus dem in immer größeren Mengen anfallenden Altpapier sind bereits bekannt (vgl. z. B. DE 39 00 289 A1, DE 36 27 255 A1, DE 25 19 015 A1).Process for the production of insulation boards from the always Larger amounts of waste paper are already known (see e.g. DE 39 00 289 A1, DE 36 27 255 A1, DE 25 19 015 A1).

Der vorliegenden Erfindung liegt folgende Aufgabe zugrunde: Es soll ein Verfahren für die Verwertung von Altpapier zu Dämmplatten und -vliesen mit hoher Isolierwirkung entwickelt werden, bei dem die Faserstruktur des Altpapiers erhalten bleibt, was dann die Bildung von Faserflocken ermöglicht, die bei der Formgebung der Dämmplatten und -vliese eine lockere Struktur mit hohem Luftanteil bewirken. Diese Platten oder Vliese können nach der Trocknung durch Aufkleben von Papier oder Pappe oder auch durch Auftragen von Leim, Gips oder Ze­ ment an der Oberfläche verfestigt werden.The present invention is based on the following object: It is supposed to be a procedure for the recovery of waste paper Insulation boards and nonwovens developed with a high insulating effect in which the fiber structure of the waste paper is preserved remains, which then enables the formation of fiber flakes, which a loose in the shape of the insulation boards and fleeces Create structure with a high proportion of air. These plates or Nonwovens can be dried by gluing paper or cardboard or by applying glue, plaster or ze be solidified on the surface.

Diese Aufgabe wird durch ein Verfahren gemäß Anspruch 1-3 gelöst.This object is achieved by a method according to claims 1-3 solved.

Die Erfindung weist gegenüber den oben genannten Verfahren aus Holzfasern folgende Vorteile auf:The invention identifies the methods mentioned above Wood fibers have the following advantages:

  • 1. Der Energieaufwand für die Aufbereitung des Altpapiers ist wesentlich geringer als der für die Aufbereitung der Holz­ fasern.1. The energy expenditure for the processing of the waste paper is much less than that for processing the wood fibers.
  • 2. Die Dichte der aus dem Altpapier nach dem Patentanspruch hergestellten Dämmplatten ist wesentlich geringer, der Luftanteil höher und damit der Wärmedurchgang niedriger. 2. The density of the waste paper according to the claim manufactured insulation boards is much lower, the Air content higher and thus the heat transfer lower.  
  • 3. Da auch mindere Altpapiersorten verwendet werden können, die bei der Papiererzeugung nicht verwertbar sind, werden die Müllmengen reduziert.3. Since fewer types of waste paper can be used, that cannot be used in paper production reduced the amount of waste.
AnwendungsbeispielApplication example

Altpapier wird in einem in der Papierfabrikation üblichen Pulper bzw. Turbolöser mit Wasser aufgelöst. Vorhandene grobe Verunreinigungen werden aussortiert. Danach können Zuschlagstoffe, wie Leime, Sägemehl, Ligninpulver u. a. zu­ gesetzt werden.Waste paper is used in a paper machine Pulper or turbosolvent dissolved with water. Existing coarse impurities are sorted out. After that you can Additives such as glue, sawdust, lignin powder and the like a. to be set.

Die so erhaltene Suspension wird dann mit einem Banddruck­ filter auf einen Trockengehalt von ca. 40% entwässert. Das Wasser wird rezirkuliert.The suspension thus obtained is then applied with a band pressure filter drained to a dry matter content of approx. 40%. The Water is recirculated.

Der Feststoff wird in einer Zahnscheibenmühle zerfasert. Die dabei entstehenden Faserbündel und -flocken werden zu Platten bzw. Vliesen geformt, die in einem Bandtrockner mit Heißluft im Gegenstrom getrocknet werden.The solid is defibrated in a toothed disk mill. The The resulting fiber bundles and flakes become plates or nonwovens formed in a belt dryer with hot air be dried in countercurrent.

Das Produkt ähnelt äußerlich den aus Holzfasern hergestellten Faserplatten, hat aber eine wesentlich geringere Dichte und damit einen höheren Wärmedämmwert als diese.The exterior of the product is similar to that made from wood fibers Fiberboard, but has a much lower density and thus a higher thermal insulation value than this.

Je nach Einsatzzweck können im Anschluß an die Trocknung Pap­ pen oder Papier aufgeklebt werden. Auftragungen von Lacken, Leimen oder mineralischen Verfestigern sind ebenfalls möglich.Depending on the application, pap pen or paper. Application of paints, Glues or mineral hardeners are also possible.

Claims (3)

1. Verfahren zur Herstellung von Wärmedämmplatten und -vliesen aus Altpapier, dadurch gekennzeichnet, daß man
  • - Altpapier in einem Pulper bzw. Turbolöser mit Wasser auflöst,
  • - grobe Verunreinigungen aussortiert,
  • - die so erhaltene Suspension mit einem Banddruckfilter auf einen Trockengehalt von ca. 40% entwässert,
  • - den so erhaltenen Feststoff in einer Zahnscheibenmühle zerfasert,
  • - den so erhaltenen Faserstoff zu Platten bzw. Vliesen formt
  • - und diese in einem Bandtrockner mit Heißluft im Gegenstrom trocknet.
1. A method for producing thermal insulation boards and nonwovens from waste paper, characterized in that
  • - dissolves waste paper with water in a pulper or turbosolvent,
  • - sorted out coarse impurities,
  • - The suspension thus obtained is dewatered to a dry matter content of approx. 40% using a belt pressure filter,
  • - pulverized the solid thus obtained in a toothed disk mill,
  • - Forms the fibrous material thus obtained into sheets or nonwovens
  • - and dries them in a belt dryer with hot air in counterflow.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man der Suspension Bindemittel und andere Zuschlagstoffe zu­ setzt.2. The method according to claim 1, characterized in that one the suspension binders and other additives puts. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man die so erhaltene Platte ein- oder beidseitig mit Papier oder Pappe beschichtet.3. The method according to claim 1, characterized in that one the plate thus obtained on one or both sides with paper or coated cardboard.
DE19934334200 1993-10-07 1993-10-07 Process for producing thermally insulating boards and mats (nonwovens) from waste paper Expired - Fee Related DE4334200C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934334200 DE4334200C1 (en) 1993-10-07 1993-10-07 Process for producing thermally insulating boards and mats (nonwovens) from waste paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934334200 DE4334200C1 (en) 1993-10-07 1993-10-07 Process for producing thermally insulating boards and mats (nonwovens) from waste paper

Publications (1)

Publication Number Publication Date
DE4334200C1 true DE4334200C1 (en) 1995-03-02

Family

ID=6499623

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934334200 Expired - Fee Related DE4334200C1 (en) 1993-10-07 1993-10-07 Process for producing thermally insulating boards and mats (nonwovens) from waste paper

Country Status (1)

Country Link
DE (1) DE4334200C1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29500065U1 (en) * 1995-01-10 1995-06-08 Pacurar, Ananie, 96472 Rödental HLR (hard, light and recyclable) cardboard
EP0749814A1 (en) * 1995-06-23 1996-12-27 Giuseppe Locati A substantially lattice-like composite material having a large percentage of open spaces and method of making it
DE19653243A1 (en) * 1996-12-20 1998-06-25 Wolfgang A Dipl Ing Mayer Paper insulation or noise=damping material(s) preparation method
EP2363544A1 (en) 2010-03-02 2011-09-07 RecuLiner BVBA Insulating material made of recycled sheet material coated with a release agent
WO2011107476A2 (en) 2010-03-02 2011-09-09 Reculiner Bvba Method for recycling sheet material coated with a release agent and uses of the thus recycled material
EP2383089A1 (en) 2010-04-29 2011-11-02 RecuLiner BVBA Method for recycling sheet material coated with a release agent and uses of the thus recycled material
WO2013034712A1 (en) 2011-09-07 2013-03-14 Reculiner New uses of recycled sheet material
RU2575461C2 (en) * 2010-03-02 2016-02-20 Рекулайнер Бвба Processing of sheet material coated with antiadhesive and application of material thus processed

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE259691C (en) * 1900-01-01
DE2519015A1 (en) * 1975-04-29 1976-11-11 Theodor Votteler Lackfabrik Resin impregnated wood or paper waste chipboard - with surface finish provided by incorporation in the layer of pigmented lacquer layer
DE3627255A1 (en) * 1986-08-12 1988-02-25 Josef Schmidt Process for producing refractory mouldings
DE3900289A1 (en) * 1989-01-07 1990-07-12 Andreas Zeyen Process for the manufacture of insulating material from waste paper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE259691C (en) * 1900-01-01
DE2519015A1 (en) * 1975-04-29 1976-11-11 Theodor Votteler Lackfabrik Resin impregnated wood or paper waste chipboard - with surface finish provided by incorporation in the layer of pigmented lacquer layer
DE3627255A1 (en) * 1986-08-12 1988-02-25 Josef Schmidt Process for producing refractory mouldings
DE3900289A1 (en) * 1989-01-07 1990-07-12 Andreas Zeyen Process for the manufacture of insulating material from waste paper

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29500065U1 (en) * 1995-01-10 1995-06-08 Pacurar, Ananie, 96472 Rödental HLR (hard, light and recyclable) cardboard
EP0749814A1 (en) * 1995-06-23 1996-12-27 Giuseppe Locati A substantially lattice-like composite material having a large percentage of open spaces and method of making it
DE19653243A1 (en) * 1996-12-20 1998-06-25 Wolfgang A Dipl Ing Mayer Paper insulation or noise=damping material(s) preparation method
EP2363544A1 (en) 2010-03-02 2011-09-07 RecuLiner BVBA Insulating material made of recycled sheet material coated with a release agent
WO2011107476A2 (en) 2010-03-02 2011-09-09 Reculiner Bvba Method for recycling sheet material coated with a release agent and uses of the thus recycled material
RU2575461C2 (en) * 2010-03-02 2016-02-20 Рекулайнер Бвба Processing of sheet material coated with antiadhesive and application of material thus processed
EP2383089A1 (en) 2010-04-29 2011-11-02 RecuLiner BVBA Method for recycling sheet material coated with a release agent and uses of the thus recycled material
WO2013034712A1 (en) 2011-09-07 2013-03-14 Reculiner New uses of recycled sheet material

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: VOITH PAPER PATENT GMBH, 89522 HEIDENHEIM, DE

8339 Ceased/non-payment of the annual fee