EP0085318B1 - Dispositif pour le chauffage d'une coulée en matériau conducteur électrique ainsi que son application - Google Patents

Dispositif pour le chauffage d'une coulée en matériau conducteur électrique ainsi que son application Download PDF

Info

Publication number
EP0085318B1
EP0085318B1 EP83100273A EP83100273A EP0085318B1 EP 0085318 B1 EP0085318 B1 EP 0085318B1 EP 83100273 A EP83100273 A EP 83100273A EP 83100273 A EP83100273 A EP 83100273A EP 0085318 B1 EP0085318 B1 EP 0085318B1
Authority
EP
European Patent Office
Prior art keywords
channel
plates
frequency generator
walls
condenser plates
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
Application number
EP83100273A
Other languages
German (de)
English (en)
Other versions
EP0085318A1 (fr
Inventor
Eckhard Schulz
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.)
Sicowa Verfahrenstechnik fuer Baustoffe GmbH and Co KG
Original Assignee
Sicowa Verfahrenstechnik fuer Baustoffe GmbH and Co KG
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 Sicowa Verfahrenstechnik fuer Baustoffe GmbH and Co KG filed Critical Sicowa Verfahrenstechnik fuer Baustoffe GmbH and Co KG
Priority to AT83100273T priority Critical patent/ATE29641T1/de
Publication of EP0085318A1 publication Critical patent/EP0085318A1/fr
Application granted granted Critical
Publication of EP0085318B1 publication Critical patent/EP0085318B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating
    • H05B6/60—Arrangements for continuous movement of material
    • 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
    • B28B5/026—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 the shaped articles being of indefinite length
    • B28B5/027—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 the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S198/00—Conveyors: power-driven
    • Y10S198/952—Heating or cooling

Definitions

  • the invention relates to a device for heating a strand of electrically conductive material according to the preamble of claim 1 and its use for the production of blanks for building materials, in particular wall blocks.
  • the heating chamber of this device cannot easily be replaced by capacitor plates which are connected to a high-frequency generator, since the emerging strand would be at potential and would also radiate like an antenna.
  • FR-A-2 308 479 or DE-A-1 683 991 it is known from FR-A-2 308 479 or DE-A-1 683 991 to use a channel for the production of gypsum boards, which consists of four synchronously driven belts and can be filled via a filling funnel.
  • the filled raw mixture is not heated, rather the plaster is allowed to harden in order to be able to remove the finished plate.
  • This requires a corresponding length of the channel or a sufficiently long period of time for the mixture to remain in the channel.
  • the use of a high-frequency field for heating is not possible because of the material of the strips, which are at least partially made of metal, because of the short circuit that then occurs.
  • the object of the invention is to provide a device according to the preamble of claim 1, in which the strand emerging from the channel is grounded and does not radiate.
  • the 1 comprises four belts 10, 11, 12 and 13 which are arranged such that they form a rectangular channel 14 between them.
  • the belts 10 to 13 are guided around rollers 15 and driven synchronously by means of a drive, not shown.
  • the tapes 10 to 13 are further supported, if necessary, adjacent to the channel 14 by support gratings, not shown, while the vertical tapes 12 and 13 can additionally be guided at their edges via slide rails.
  • the lower horizontal belt 10 is extended beyond the outlet end of the channel 14 and guided to the belt running control via a dancer roll 16.
  • a filling funnel 17 opens between the belts 10 to 13 in the inlet area of the channel 14, which is expediently arranged such that it can be moved out of the inlet area of the channel 14 by means of a piston-cylinder unit for cleaning purposes.
  • the outlet opening of the filling funnel 17 is located in the inlet area of the channel 14.
  • a cutting device 18 is provided, which in the feed direction of the band 10 from an initial position synchronously with the feed Speed of the belt 10 can be moved and can be moved back into the starting position after the cutting process has been carried out.
  • the cutting device 18 has in the embodiment shown a bracket 19, a cutting wire 19 a reciprocating and adjustable in the vertical direction according to the cutting progress and receives and can be moved with a carriage 20.
  • a belt weighing section can be provided downstream of the cutting device 18.
  • the tapes 10 to 13 are preferably made of an electrically non-conductive plastic, while adjacent to the tapes 12 and 13, namely on the outside of the tape parts that form the entrance area of the channel 14, a capacitor plate arrangement 21 is provided, which is connected via corresponding lines 22 are connected to a high frequency generator 23.
  • a raw mixture for example consisting of quartz sand, lime, water, cement with accelerator and foam for the production of lime silicate stones
  • the raw mixture reaches the channel 14 and is held on the predetermined channel cross section by the belts 10 to 13.
  • the raw mixture in the duct 14 is heated, for example, to a temperature of 50 ° C. via the capacitor plate arrangement 21, so that the raw mixture solidifies due to the strengthening reactions of the cement that are set in motion.
  • the pressure build-up in the foam pores of the raw mixture can then take place correspondingly more slowly.
  • the raw mixture can also expand in the direction of the filling funnel 17 during the heating, it being expedient to always maintain a substantially constant level of raw mixing in the filling funnel 17, so that the pressure exerted thereby on the solidifying strand located in the channel 14 in the remains essentially constant.
  • the solidifying strand of raw mixture in channel 14 is conveyed through belts 10 to 13 to the outlet end of channel 14. A relative movement between the strand and the tapes 10 to 13 and between the tapes 10 to 13 does not take place here, so that the wear problems are minimal.
  • the tapes 10 to 13 are sprayed with a release agent by spray devices 24 before they are deflected to the channel 14.
  • scrapers 25 are provided, which remove any adhering material from the belts 10 to 13.
  • the solidified strand After the solidified strand emerges from the channel 14, it is transported further through the lower belt 10 and divided into individual stone blanks 26 by means of the cutting device 18.
  • the separated stone blanks 26 can then optionally be weighed on a belt weighing line, in order to be able to readjust the composition of the raw mixture in this way, in order to achieve the most uniform possible body density of the stone blanks 26.
  • the waste heat from the high-frequency generator 23 can be used by blowing warm air generated by the generator cooling, for example by means of a hood, onto the stone blanks 26 in order to harden them, so that these have a sufficiently high strength for subsequent transport to an autoclave, but they do not must be fully generated by capacitive heating.
  • the length of the channel 14 is dimensioned such that the emerging strand has a desired strength, which may be increased to the necessary value by reheating with warm air from the generator cooling or another heat source.
  • the area of the channel 14 is expediently accommodated in a housing, not shown, which extends from the hopper 17 to the cutting device 18.
  • the belts 10 to 13 with their rollers 15 as well as support gratings and sliding guides can be adjusted with respect to their belt levels so that the cross section of the channel 14 can be changed.
  • the length of the blanks 26 can be changed by the cycle of the cutting device 18.
  • the feed rate of the belts 10 to 13 is expediently adjustable, in particular continuously adjustable, in order to be able to adapt the feed rate to the heating rate and the size of the capacitor plate arrangement 21 accordingly.
  • the belt strand system is suitable, for example, for the production of blanks for wall building blocks, in particular lightweight building blocks, for example based on lime silicate, gas or foam concrete or from coarse-ceramic material, the raw mixture containing large proportions of foam and water, so that cullet densities down to 0.2 g / cm 3 can be achieved.
  • the generator power can be used optimally.
  • the capacitor plate arrangement 21 shown in FIG. 2 comprises two capacitor plates 30, one each on an outside of the band 12 or 13, which are offset from one another by at least approximately their length and are connected to the ungrounded connection of the high-frequency generator 23 (by “+” indicated).
  • two further capacitor plates 31 are arranged adjacent to each of them on the outside of the band 12 and 13, respectively, which are connected to the grounded connection of the high-frequency generator 2 3 are connected (indicated by «-»).
  • the capacitor plates 31, 32 extend so far along the channel 14 that the scattering field lines emanating from the capacitor plates 30 are absorbed by the capacitor plates 31, 32 on both sides thereof, so that the strand inside the channel 14 no longer extends outside the heating area Potential lies.
  • the capacitor plates 30, 31, 32 can serve as support elements for the bands 12, 13 at the same time.
  • the plates 33 are used to optimally adjust the capacitance of the capacitor plate arrangement 21 to the generator power.
  • the capacitor plates 30, 31 are adjustable in their spacing with respect to the adjacent belts 12, 13 by the adjacent sections of the belts by the capacitor plates 30, 31, the plates 33 and the air gap therebetween 12 and 13 and between the raw mixture formed multilayer capacitor in its capacity to match the power of the high-frequency generator 23 such that its resonant circuit operates as resonantly as possible.
  • the tapes 12 and 13 of the channel 14 expediently have a considerably lower dielectric constant and in particular a considerably lower product of the dielectric constant and loss angle than the raw mixture conveyed in the channel 14, so that the tapes 12, 13 remain practically cold and are not heated.
  • the capacitor plate arrangement 21 can also be arranged in the area of the filling funnel 17, which then has a corresponding length and must be made of the appropriate material.
  • the device enables true capacitive heating even with an electrically conductive raw mixture and a relatively high dielectric constant, with optimal use of the generator power, it also being possible to work with a reduced frequency, which simplifies the technical implementation.
  • a Jouie heating of the raw mixture is additionally delivered.
  • a high dielectric strength is obtained and the choice of generator voltage is less problematic.
  • the raw mixture can have a water and foam content of more than 50% by weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Resistance Heating (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Road Paving Machines (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Central Heating Systems (AREA)
  • Surface Heating Bodies (AREA)

Claims (16)

1. Dispositif pour le chauffage d'une coulée guidée dans un canal (14) d'un matériau conducteur électrique et durcissant à la chaleur, caractérisé par le fait qu'est prévu un générateur à hautes fréquences (23) et que sur les deux côtés opposés des parois (10 à 13) du canal (14) réalisées en un matériau isolant électrique sont disposées deux plaques de condensateur (30) agencées de manière à être décalées l'une par rapport à l'autre d'une distance égale à au moins leur longueur, longitudinalement au canal (14), ces plaques étant raccordées à la borne du générateur à hautes fréquences (23) non mise à la terre, tandis que, de part et d'autre et au voisinage des deux plaques de condensateur (30), deux autres plaques de condensateur (31, 32) sont elles-mêmes disposées et raccordées à la borne mise à la terre du générateur à hautes fréquences (23) et s'étendent le long du canal (14) de manière que la coulée, à l'extérieur de la zone de réchauffement, n'ait plus de potentiel.
2. Dispositif selon la revendication 1, caractérisé par le fait que les plaques de condensateur (30, 31, 32) sont conçues comme éléments de support pour les parois flexibles (12,13) du canal (14).
3. Dispositif selon la revendiation 1 ou 2, caractérisé par le fait que les parois (10 à 13) du canal (14) sont entourées par un caisson de guidage (33) en matériau isolant électrique, disposé entre les plaques de condensateur (30, 31) et au moins au droit des plaques de condensateur (30) raccordées à la borne non mise à la terre du générateur à hautes fréquences (23).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que l'espacement entre les plaques de condensateur (30, 31) et les parois (12, 13) du canal (14) est réglable et permet la formation d'un entrefer.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que des plaques de condensateur distinctes (32) et raccordées à la borne mise à la terre du générateur à hautes fréquences (23) sont prévues en dehors de la zone occupée par les plaques de condensateur (30).
6. Dispositif selon la revendication 5, caractérisé par le fait que les plaques de condensateur (32) sont disposées contre les parois (12, 13) du canal (14).
7. Dispositif selon l'une des revendications 1 à 6, caractérisé par le fait que les parois (12, 13) du canal (14) présentent une constante diélectrique et, en particulier le produit de l'angle de pertes diélectriques par la constante diélectrique est plus faible que les valeurs correspondantes du matériau à échauffer.
8. Dispositif selon la revendication 7, caractérisé par le fait que les parois (12, 13) sont constituées d'un matériau plastique.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé par le fait que le canal (14) est formé de quatre bandes (10 à 13) entraînées en synchronisme, avec une trémie de chargement (17) à l'entrée et un dispositif de coupe à la sortie qui est synchronisé avec la vitesse des bandes (10 à 13), mobile dans le sens de l'avance à partir d'une position de départ et rétractable pour reprendre cette position de départ.
10. Dispositif selon la revendication 9, caractérisé par le fait que l'une des bandes (10) est prolongée sur le côté sortie de la coulée pour former une bande transporteuse où est installé le dispositif de coupe (18).
11. Dispositif selon l'une des revendications 9 ou 10, caractérisé par le fait qu'il est prévu un dispositif de réchauffage à la sortie du canal (14), de préférence après le dispositif de coupe (18).
12. Dispositif selon la revendication 11, caractérisé par le fait que le dispositif de réchauffage est alimenté par la chaleur perdue du générateur à hautes fréquences (23).
13. Dispositif selon l'une des revendications 9 à 12, caractérisé par le fait que la longueur occupée par les plaques de condensateur (30) disposées au voisinage des bandes (12, 13), raccordées à la borne non mise à la terre du générateur à hautes fréquences (23), est sensiblement supérieure à la longueur de l'ébauche à fabriquer (26).
14. Dispositif selon l'une des revendications 9 à 13, caractérisé par le fait que la vitesse des bandes (10 à 13) est réglable en continu.
15. Dispositif selon l'une des revendications 9 à 14, caractérisé par le fait que l'une des bandes au moins (10 à 13) est réglable en position par rapport à la bande opposée.
16. Dispositif selon l'une des revendications 9 à 15, caractérisé par le fait qu'un dispositif de pesée continue s'est installé après le dispositif de coupe (18).
EP83100273A 1982-01-30 1983-01-14 Dispositif pour le chauffage d'une coulée en matériau conducteur électrique ainsi que son application Expired EP0085318B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100273T ATE29641T1 (de) 1982-01-30 1983-01-14 Vorrichtung zum erwaermen eines strangs aus elektrisch leitfaehigem material sowie deren verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3203131 1982-01-30
DE3203131 1982-01-30

Publications (2)

Publication Number Publication Date
EP0085318A1 EP0085318A1 (fr) 1983-08-10
EP0085318B1 true EP0085318B1 (fr) 1987-09-09

Family

ID=6154378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100273A Expired EP0085318B1 (fr) 1982-01-30 1983-01-14 Dispositif pour le chauffage d'une coulée en matériau conducteur électrique ainsi que son application

Country Status (7)

Country Link
US (1) US4514162A (fr)
EP (1) EP0085318B1 (fr)
JP (1) JPS58136404A (fr)
AT (1) ATE29641T1 (fr)
CA (1) CA1194559A (fr)
DE (1) DE3373606D1 (fr)
DK (1) DK156362C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228615A2 (fr) * 1985-12-10 1987-07-15 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Dispositif pour réchauffer une billette en matériau conducteur électrique

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428936A1 (de) * 1984-08-06 1986-02-13 Continental Gummi-Werke Ag, 3000 Hannover Presse zum kontinuierlichen herstellen von bahnfoermigem pressgut
DE4141271C1 (fr) * 1991-12-14 1992-11-05 Sicowa Verfahrenstech
NL1009217C2 (nl) * 1998-05-19 1999-11-25 Boudewijn Johannes Geul Werkwijze en inrichting voor het vormen van kalkzandsteenproducten.
EP1386710B1 (fr) * 2001-05-09 2007-06-27 Nissei Kabushiki Kaisha Procede de fabrication des objets formes a chaud, et dispositif de chauffage continu par haute frequence
WO2003041928A1 (fr) * 2001-11-16 2003-05-22 Associated Property Investments Llc Installation destinee a la fabrication de pieces en beton arme
EP1487240B1 (fr) * 2003-06-13 2005-08-31 RUDOLF WILD GmbH & CO. KG Dispositif chauffant pour un courant de produits
US7763341B2 (en) * 2004-01-23 2010-07-27 Century-Board Usa, Llc Filled polymer composite and synthetic building material compositions
US7211206B2 (en) * 2004-01-23 2007-05-01 Century-Board Usa Llc Continuous forming system utilizing up to six endless belts
AU2005267399A1 (en) 2004-06-24 2006-02-02 Century-Board Usa, Llc Continuous forming apparatus for three-dimensional foamed products
ES2273579B1 (es) * 2005-06-21 2008-03-16 Carlos Fradera Pellicer Procedimiento para el tratamiento de elementos tecnicos que endurecen en el tiempo.
US20070013099A1 (en) * 2005-07-15 2007-01-18 Epoch Composite Products, Inc. Method And Apparatus For Emobssing Manufactured Deck Boards
WO2007112104A2 (fr) * 2006-03-24 2007-10-04 Century-Board Usa, Llc Matériaux composites en polyuréthanne
ITPS20070011A1 (it) * 2007-03-08 2008-09-09 Angelo Candiracci Procedimento e dispositivo per la produzione di blocchi di polistirolo espanso
US20090295021A1 (en) * 2008-05-27 2009-12-03 Century-Board Usa, Llc Extrusion of polyurethane composite materials
US9481759B2 (en) 2009-08-14 2016-11-01 Boral Ip Holdings Llc Polyurethanes derived from highly reactive reactants and coal ash
US8846776B2 (en) 2009-08-14 2014-09-30 Boral Ip Holdings Llc Filled polyurethane composites and methods of making same
WO2013052732A1 (fr) 2011-10-07 2013-04-11 Boral Industries Inc. Composites de polymère inorganique/polymère organique et procédés pour les préparer
WO2014168633A1 (fr) 2013-04-12 2014-10-16 Boral Ip Holdings (Australia) Pty Limited Composites formés à partir d'une charge absorbante et d'un polyuréthane
US10138341B2 (en) 2014-07-28 2018-11-27 Boral Ip Holdings (Australia) Pty Limited Use of evaporative coolants to manufacture filled polyurethane composites
US9752015B2 (en) 2014-08-05 2017-09-05 Boral Ip Holdings (Australia) Pty Limited Filled polymeric composites including short length fibers
US9988512B2 (en) 2015-01-22 2018-06-05 Boral Ip Holdings (Australia) Pty Limited Highly filled polyurethane composites
US10030126B2 (en) 2015-06-05 2018-07-24 Boral Ip Holdings (Australia) Pty Limited Filled polyurethane composites with lightweight fillers
US20170267585A1 (en) 2015-11-12 2017-09-21 Amitabha Kumar Filled polyurethane composites with size-graded fillers

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1024122A (en) * 1910-01-03 1912-04-23 John R Dawkins Brickmaking-machine.
DE859122C (de) * 1943-08-28 1952-12-11 Degussa Kontinuierliche Herstellung von poroesen Formkoerpern
US2528428A (en) * 1946-04-25 1950-10-31 Cutler Hammer Inc Electrostatic heating apparatus
US2463289A (en) * 1946-08-30 1949-03-01 Goodrich Co B F Method and apparatus for producing cellular rubber material
FR963317A (fr) * 1947-03-17 1950-07-05
US2838640A (en) * 1951-04-02 1958-06-10 Julius W Mann Continuous immersion high frequency heating apparatus and process
US3270102A (en) * 1964-12-23 1966-08-30 Ken Mar Clay Products Ltd Method and apparatus for the production of hardened clay products
US3312760A (en) * 1965-10-22 1967-04-04 Wmb Internat Ab Method for the production of slabs of foamed thermoplastic material
DE1683991A1 (de) * 1967-11-18 1971-04-08 Buettner Schilde Haas Ag Vorrichtung zur kontinuierlichen Herstellung von Gipsplatten
US3532848A (en) * 1968-04-26 1970-10-06 Varian Associates Resonant r.f. energy applicator for treating wide regions of material
US3640662A (en) * 1969-12-23 1972-02-08 Lester Engineering Co Injection molding machine with high-frequency dielectric heater
US4025257A (en) * 1972-05-17 1977-05-24 Sekisui Kagaku Kogyo Kabushiki Kaisha Apparatus for continuously manufacturing an elongated reinforced shaped article
FR2308479A1 (fr) * 1975-04-21 1976-11-19 Babu Jean Pierre Procede et installation pour le moulage en continu d'elements de construction prefabriques en platre ou materiau equivalent, et elements ainsi obtenus
SU878187A3 (ru) * 1977-05-17 1981-10-30 Бизон-Верке Бэре Унд Гретен Гмбх Унд Ко,Кг (Фирма) Устройство дл непрерывного изготовлени древесностружечных плит
SE419617B (sv) * 1979-12-12 1981-08-17 Kockums Ind Ab Kontinuerligt arbetande herdningspress
EP0038552B1 (fr) * 1980-04-22 1984-02-01 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Procédé de préparation de pierres de construction murale à base de chaux et de sable et dispositif pour la production de pierres crues

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228615A2 (fr) * 1985-12-10 1987-07-15 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Dispositif pour réchauffer une billette en matériau conducteur électrique
EP0228615A3 (en) * 1985-12-10 1988-06-08 Sicowa Verfahrenstechnik Fur Baustoffe Gmbh & Co. Kg Arrangement for heating a billet of electrically conductive material
EP0485363A2 (fr) * 1985-12-10 1992-05-13 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Installation de chauffage d'un produit long en matériau électriquement conducteur
EP0486472A2 (fr) * 1985-12-10 1992-05-20 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Installation de chauffage d'un produit long en matériau électriquement conducteur
EP0487504A1 (fr) * 1985-12-10 1992-05-27 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Dispositif pour le chauffage d'un produit long en matériau conducteur électrique
EP0485363A3 (en) * 1985-12-10 1992-05-27 Sicowa Verfahrenstechnik Fuer Baustoffe Gmbh & Co. Kg Device for heating a long product of electrical conductive material
EP0486472A3 (fr) * 1985-12-10 1992-05-27 SICOWA Verfahrenstechnik für Baustoffe GmbH & Co. KG Installation de chauffage d'un produit long en matériau électriquement conducteur

Also Published As

Publication number Publication date
DK21883D0 (da) 1983-01-20
JPS58136404A (ja) 1983-08-13
ATE29641T1 (de) 1987-09-15
DK156362B (da) 1989-08-07
JPH047285B2 (fr) 1992-02-10
DK156362C (da) 1990-01-02
EP0085318A1 (fr) 1983-08-10
CA1194559A (fr) 1985-10-01
DK21883A (da) 1983-07-31
DE3373606D1 (en) 1987-10-15
US4514162A (en) 1985-04-30

Similar Documents

Publication Publication Date Title
EP0085318B1 (fr) Dispositif pour le chauffage d'une coulée en matériau conducteur électrique ainsi que son application
DE2400006A1 (de) Verdichter zur herstellung von zementwandplatten
DE3431143C2 (fr)
EP0332737A2 (fr) Dispositif de fabrication de tuiles en béton à plusieurs couches
EP0279323B1 (fr) Dispositif pour appliquer un mélange réactionnel fluide formant un matériau alvéolaire sur un support
EP0482092B1 (fr) Procede de production de plaques ou de dalles stratifiees en un materiau alveolaire thermoplastique
EP0025084A2 (fr) Dispositif pour la production en continu de blocs ou de feuilles en mousse plastique
EP0000058A1 (fr) Procédé et installation pour la fabrication continue de blocs de mousse à section rectangulaire
EP0486472B1 (fr) Installation de chauffage d'un produit long en matériau électriquement conducteur
EP0021159A2 (fr) Dispositif pour la production en continu de blocs ou de feuilles en mousse plastique
DE2103931A1 (de) Anlage zum kontinuierlichen Her steJJen von Formkorpern, insbesondere von Platten, aus Gips
CH665382A5 (en) Continuous prodn. line for forming moulded structural elements - has conveyor which transports moulds under charging chute
DE3448348C2 (en) Continuous fibre reinforced cement slab mfr
DE3203132C1 (de) Einrichtung zur kapazitiven Erwaermung
DE2205603A1 (de) Automatisiertes fliessband fuer gipsabguesse
DE2050377A1 (en) Foam strip - in continuous form using individual side plates on sprung rollers for sideways closing of the foaming channel
DE3610782A1 (de) Verfahren und vorrichtung zur herstellung eines waermedaemmbausteines
EP0044882B1 (fr) Procédé de fabrication en continu de profilés creux en métal remplis de mousse
DE2829202A1 (de) Verfahren zur herstellung eines biegsamen bodens und/oder einer boeschungsschutzkonstruktion
DE2649554A1 (de) Vorrichtung zur herstellung von gegenstaenden aus einem plattenmaterial, insbesondere von gegenstaenden, welche ueber ihre gesamtlaenge hin ein konstantes profil aufweisen
DE2730075A1 (de) Verfahren und einrichtung zum herstellen von bausteinen mit verbesserten waermedaemmeigenschaften
DE1156865B (de) Vorrichtung zum Herstellen von mit parallelen Rippen versehenen, duennen poroesen Separatoren aus thermoplastischem Kunststoff
DE1459306C (de) Vorrichtung zur kontinuierlichen Herstellung von Gipsformplatten
DE1584837C (de) Verfahren und Vorrichtung zum Herstel len von bewehrten Formstucken mit Langs hohlräumen aus leichten mineralischen Zu schlagstoffen mit Bindemitteln
AT395455B (de) Plattenfoermiges bauelement, verfahren und vorrichtung zur herstellung desselben

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

17P Request for examination filed

Effective date: 19831008

17Q First examination report despatched

Effective date: 19860606

111L Licence recorded

Free format text: 0100 WAAGNER-BIRO AKTIENGESELLSCHAFT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 29641

Country of ref document: AT

Date of ref document: 19870915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3373606

Country of ref document: DE

Date of ref document: 19871015

ET Fr: translation filed
ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19931213

Year of fee payment: 12

Ref country code: CH

Payment date: 19931213

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19931214

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19931216

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19931221

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19931222

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19931228

Year of fee payment: 12

EPTA Lu: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19940131

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940224

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950114

Ref country code: GB

Effective date: 19950114

Ref country code: AT

Effective date: 19950114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950115

EAL Se: european patent in force in sweden

Ref document number: 83100273.8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950131

Ref country code: CH

Effective date: 19950131

Ref country code: BE

Effective date: 19950131

BERE Be: lapsed

Owner name: SICOWA VERFAHRENSTECHNIK FUR BAUSTOFFE G.M.B.H. &

Effective date: 19950131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19950801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950929

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19950801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951003

EUG Se: european patent has lapsed

Ref document number: 83100273.8

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST