EP0143939A1 - Procédé pour la production de panneaux pris dans le plâtre - Google Patents
Procédé pour la production de panneaux pris dans le plâtre Download PDFInfo
- Publication number
- EP0143939A1 EP0143939A1 EP84111582A EP84111582A EP0143939A1 EP 0143939 A1 EP0143939 A1 EP 0143939A1 EP 84111582 A EP84111582 A EP 84111582A EP 84111582 A EP84111582 A EP 84111582A EP 0143939 A1 EP0143939 A1 EP 0143939A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gypsum
- plaster
- particles
- fleece
- boards
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011505 plaster Substances 0.000 claims abstract description 8
- 239000010954 inorganic particle Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229920002678 cellulose Polymers 0.000 claims abstract description 3
- 239000001913 cellulose Substances 0.000 claims abstract description 3
- 239000010440 gypsum Substances 0.000 claims description 20
- 229910052602 gypsum Inorganic materials 0.000 claims description 20
- 230000036571 hydration Effects 0.000 claims description 4
- 238000006703 hydration reaction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims description 2
- 241000208202 Linaceae Species 0.000 claims description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 claims description 2
- 230000023556 desulfurization Effects 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010902 straw Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000011490 mineral wool Substances 0.000 claims 1
- 239000010451 perlite Substances 0.000 claims 1
- 235000019362 perlite Nutrition 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 239000010455 vermiculite Substances 0.000 claims 1
- 235000019354 vermiculite Nutrition 0.000 claims 1
- 229910052902 vermiculite Inorganic materials 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 9
- 238000009736 wetting Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
Definitions
- the invention relates to a process for the production of gypsum-bonded boards, in which an endless, lignocellulosic and / or cellulose-containing and / or inorganic particles, powdery gypsum and setting water for the gypsum-containing nonwoven is formed on a continuously moving base, which presses into finished boards becomes.
- the wetting device is designed as a suction wetting device with nebulizing nozzles and is provided with a control device which can be set for wetting that is free of water residues.
- the pressing and dewatering device consists of a mobile plate press, which has a dewatering belt with drainage spaces for dewatering water that is also endlessly guided over deflection rollers under the sieve belt.
- the known system is not free from disadvantages.
- a uniform build-up of the material to be pressed which significantly influences the technological properties of the finished plates to be produced, is disturbed, especially since at least smaller gypsum and / or fiber particles inevitably get into the suction flow and have to be separated out of it again by means of suitable measures.
- the excess water to be discharged causes wastewater and sewage problems that pollute the environment or their solution requires high investment and operating costs.
- the present invention has for its object to provide a method of the type defined, which is energy-saving and environmentally friendly and with which it is possible to produce uniformly constructed plates with smooth surfaces.
- the method according to the invention is therefore particularly characterized by a comparatively low energy consumption and a high degree of environmental friendliness, whereby the documents can also be reused in the production process after the panels have been removed.
- a free-flowing particle mixture is formed into a fleece exclusively by windsifting scattering on the flat and air-impermeable underlays. This is because the pressed fleece then has an improved bending stress in addition to smooth surfaces.
- a sensible combination for fleece shaping is to first sprinkle a lower cover layer on the underlays in a windsifting manner, then pouring a middle layer onto the previously formed cover layer separately in the fleece shape and finally sprinkling a further upper cover layer on the middle layer in fleece form in a windsifting manner .
- Another particularly preferred possibility of the process according to the invention is that as exothermic
- hardening binders suitable chemical gypsum made from raw phosphate, from which flue gas desulfurization and the like can be used even in only partially cleaned or even unpurified form, with economically at least acceptable production capacities.
- the time sequence of the hydration process with the start of stiffening, stiffening and end of hydration can be optimally controlled either by acceleration means or by deceleration means which are known per se.
- the start of stiffening coincides with the pressing of the respective package to the nominal thickness in the press and the package is only opened when the stiffening or, preferably, the hydration has ended, it can be seen that the gypsum-bonded plates obtained are maximally manipulative and moisture-resistant.
- a preferred embodiment of the method according to the invention still consists in shredding annual plants, such as e.g. Use straw, flax, cotton stems and the like, which delay the setting process of the plaster.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Credit Cards Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833336243 DE3336243A1 (de) | 1983-10-05 | 1983-10-05 | Verfahren zum herstellen von gipsgebundenen platten |
| DE3336243 | 1983-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0143939A1 true EP0143939A1 (fr) | 1985-06-12 |
Family
ID=6211080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84111582A Withdrawn EP0143939A1 (fr) | 1983-10-05 | 1984-09-27 | Procédé pour la production de panneaux pris dans le plâtre |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0143939A1 (fr) |
| DE (1) | DE3336243A1 (fr) |
| ES (1) | ES536515A0 (fr) |
| FI (1) | FI75517C (fr) |
| NL (1) | NL8401036A (fr) |
| NO (1) | NO843976L (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5342566A (en) * | 1990-08-23 | 1994-08-30 | Carl Schenck Ag | Method of manufacturing fiber gypsum board |
| US5637362A (en) * | 1993-08-20 | 1997-06-10 | Louisiana-Pacific Corporation | Thin, sealant-coated, fiber-reinforced gypsum panel |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3416824C2 (de) * | 1984-05-07 | 1987-04-02 | Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe | Verfahren zum Herstellen von gipsgebundenen Formkörpern |
| DE3840718A1 (de) * | 1988-12-02 | 1990-06-07 | Baehre & Greten | Verfahren zum herstellen von formkoerpern, insbesondere von platten |
| DE4300428A1 (en) * | 1992-02-19 | 1993-08-26 | Wilhelm Rusteberg | Gypsum building material - contg. fibrous esp. waste material, used for boards, blocks and mouldings |
| DE4239033A1 (fr) * | 1992-03-19 | 1993-09-23 | Fraunhofer Ges Forschung | |
| DE4323116C2 (de) * | 1993-07-10 | 1997-03-20 | Fraunhofer Ges Forschung | Verfahren zur Regelung des Hydratationsverhaltens von Gips bei der Verbundwerkstoff-Herstellung |
| DE19715310A1 (de) * | 1997-04-02 | 1998-10-08 | Kschiwan Marlis | Dämmende Baustoffmasse |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109585B (de) * | 1958-06-04 | 1961-06-22 | Gerrit Jan Van Elten | Vorrichtung zum Herstellen von Leichtbauplatten |
| CH399278A (de) * | 1961-08-02 | 1966-03-31 | Isotex Leichtbauplattenwerk Ka | Verfahren und Vorrichtung zum Herstellen von Bauplatten, insbesondere Holzwolle- Zementplatten |
| DE1653280A1 (de) * | 1966-06-23 | 1971-01-28 | Schnitzler Dr Erwin | Anlage zur Herstellung von Spanplatten,Faserplatten u.dgl. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1784657B2 (de) * | 1968-09-02 | 1977-12-01 | Ferma International Entwicklungswerk Fuer Rationelle Fertigbaumethoden Und Maschinenanlagen Gmbh & Co Kg, 7516 Karlsbad | Verfahren zum kontinuierlichen Herstellen von Formkörpern, insbesondere von Platten, aus Gips und Fasern |
-
1983
- 1983-10-05 DE DE19833336243 patent/DE3336243A1/de not_active Withdrawn
-
1984
- 1984-04-02 NL NL8401036A patent/NL8401036A/nl not_active Application Discontinuation
- 1984-09-20 FI FI843682A patent/FI75517C/fi not_active IP Right Cessation
- 1984-09-27 EP EP84111582A patent/EP0143939A1/fr not_active Withdrawn
- 1984-10-03 NO NO843976A patent/NO843976L/no unknown
- 1984-10-04 ES ES536515A patent/ES536515A0/es active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109585B (de) * | 1958-06-04 | 1961-06-22 | Gerrit Jan Van Elten | Vorrichtung zum Herstellen von Leichtbauplatten |
| CH399278A (de) * | 1961-08-02 | 1966-03-31 | Isotex Leichtbauplattenwerk Ka | Verfahren und Vorrichtung zum Herstellen von Bauplatten, insbesondere Holzwolle- Zementplatten |
| DE1653280A1 (de) * | 1966-06-23 | 1971-01-28 | Schnitzler Dr Erwin | Anlage zur Herstellung von Spanplatten,Faserplatten u.dgl. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5342566A (en) * | 1990-08-23 | 1994-08-30 | Carl Schenck Ag | Method of manufacturing fiber gypsum board |
| US5637362A (en) * | 1993-08-20 | 1997-06-10 | Louisiana-Pacific Corporation | Thin, sealant-coated, fiber-reinforced gypsum panel |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3336243A1 (de) | 1985-05-02 |
| NL8401036A (nl) | 1985-05-01 |
| ES8506492A1 (es) | 1985-08-01 |
| FI843682L (fi) | 1985-04-06 |
| ES536515A0 (es) | 1985-08-01 |
| FI75517C (fi) | 1988-07-11 |
| FI843682A0 (fi) | 1984-09-20 |
| FI75517B (fi) | 1988-03-31 |
| NO843976L (no) | 1985-04-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT CH DE FR GB IT LI SE |
|
| 17P | Request for examination filed |
Effective date: 19851106 |
|
| 17Q | First examination report despatched |
Effective date: 19870515 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19890331 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HUEBNER, JOCHEN, DIPL.-KFM. Inventor name: BUECKING, GUENTER, DIPL.-HOLZ. Inventor name: SCHWARZ, GUENTER, DR. |