EP1205722A1 - Procédé de séchage de plaques de plâtre, dispositif pour sa mise en oeuvre - Google Patents

Procédé de séchage de plaques de plâtre, dispositif pour sa mise en oeuvre Download PDF

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Publication number
EP1205722A1
EP1205722A1 EP00403098A EP00403098A EP1205722A1 EP 1205722 A1 EP1205722 A1 EP 1205722A1 EP 00403098 A EP00403098 A EP 00403098A EP 00403098 A EP00403098 A EP 00403098A EP 1205722 A1 EP1205722 A1 EP 1205722A1
Authority
EP
European Patent Office
Prior art keywords
barrel
drying
enclosure
sections
plate
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Withdrawn
Application number
EP00403098A
Other languages
German (de)
English (en)
French (fr)
Inventor
Charles Falinower
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.)
Etex France Building Performance SA
Original Assignee
Lafarge Platres SA
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 Lafarge Platres SA filed Critical Lafarge Platres SA
Priority to EP00403098A priority Critical patent/EP1205722A1/fr
Priority to UA2003065267A priority patent/UA75380C2/uk
Priority to PL01360485A priority patent/PL360485A1/xx
Priority to JP2002541325A priority patent/JP2004520962A/ja
Priority to IL15563001A priority patent/IL155630A0/xx
Priority to CA002428010A priority patent/CA2428010A1/en
Priority to NZ525678A priority patent/NZ525678A/en
Priority to EP01993804A priority patent/EP1336072A1/fr
Priority to RU2003117014/03A priority patent/RU2266818C2/ru
Priority to AU2002223741A priority patent/AU2002223741B2/en
Priority to PCT/FR2001/003408 priority patent/WO2002039041A1/fr
Priority to KR10-2003-7006346A priority patent/KR20030062330A/ko
Priority to CNB018185444A priority patent/CN1253689C/zh
Priority to BR0115464-8A priority patent/BR0115464A/pt
Priority to AU2374102A priority patent/AU2374102A/xx
Priority to ARP010105220A priority patent/AR031309A1/es
Publication of EP1205722A1 publication Critical patent/EP1205722A1/fr
Priority to ZA200303188A priority patent/ZA200303188B/xx
Priority to IL155630A priority patent/IL155630A/en
Priority to US10/429,833 priority patent/US20030217799A1/en
Priority to NO20032044A priority patent/NO20032044L/no
Withdrawn legal-status Critical Current

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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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/02—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle
    • F26B15/08—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a vertical plane

Definitions

  • the subject of the invention is a new process for manufacture of plasterboard, as well as a device for its implementation.
  • plasterboards which are made a dense plaster core (density for example 0.6 to 1.0, generally about 0.7) on at least one type of support paper, and preferably between two paper-type supports (and typically one being called cream paper and the other gray paper).
  • the conventional manufacturing process for such drywall includes the following steps.
  • the process includes forming the plate, this stage including the sub-stages of the cream paper, the mixture to obtain a compound paste mainly plaster (semi-hydrate) and water, to which additives are added to give the plate specific use properties (especially starch and possibly a foaming agent is (are) added (s) to form a foam); depositing said paste on paper cream; the course then the application of gray paper to continuously form the precursor sandwich of the plate; hydration, hardening and cohesion of the current dough of hydration with the two papers on supports constituting the forming line.
  • a semi finished product can be cut with shears and then handled possibly in particular with a turning operation to place the cream side on top.
  • this product is introduced into a dryer to remove excess water of the plate (so-called plate drying operation). To the leaving the dryer, the plate is subjected in the dry state to different conditioning treatments to give it his final presentation.
  • each stage presents its own problems techniques, certain steps are critical, either in terms kinetics of chemical reaction, kinematics or process which will influence the characteristics and the quality of the final product, either in terms of complexity and size of equipment and difficulty of maintenance, as well as occupying space, i.e. several in combination.
  • the most critical steps in addition to the initial forming step, are the hydration-hardening steps; wet transfer and drying in the dryer to remove excess free water.
  • each major step in the manufacturing process for plaster is critical to the process and / or the final product. Such a degree of criticality is particular to the method of manufacture of plasterboard.
  • the stage of beginning hydration up to the shears typically lasts a few minutes, typically around 3 to 4 minutes or more, the following stage of wet transfer and end of hydration until the dryer entry lasts 5 10 minutes.
  • the line speed in order to reach values greater than 150 m / min, with conventional hydration times, it is then necessary to increase the length of the forming line up to values greater 500m, which is very expensive and poses many problems of kinematics of transfer and positioning of the plates on the machines.
  • the wet transfer step uses complex devices which must operate in a hot and humid atmosphere. The productivity of the production line is therefore dependent on the reliability of these devices, the maintenance of which is delicate and expensive.
  • the shearing step implements a shear in the form of two rollers equipped with blades which must be cleaned regularly.
  • This device is quite destructive and mechanically harsh vis-à-vis the plate (this is also one of the reasons which make it necessary a relatively long hardening time because the hardened wet plate -hydrated- must be able to withstand the stresses generated by the shears and handling in the wet transfer area).
  • the flipping or pinball stage is so far often necessary.
  • the thinned edges of the plate are formed by means of a lower roller with thickened edges or a strip having the counterform; this implies that the cream paper is in the lower position.
  • this cream side is on top, in order to avoid any soiling coming from the rollers of the dryer. It would be desirable to be able to avoid this restrictive step of the pinball machine (while possibly being able to keep, if desired, the current configuration with the plaster paste which is deposited on the cream paper).
  • the transfer stage in the dry state certainly poses fewer problems than in the wet state, but it remains complicated and always heavy maintenance.
  • the object of the invention is to provide a method and a device for its implementation, which make it possible to avoid the above problems and provide other benefits in terms of process / quality of the final product, maintenance, operating cost, investment, and of working condition.
  • the invention is based in part on the principle that unlike the prior art in which the plates move over great distances in the various equipment, in the invention the plates are practically static; it is the equipment that is mobile and generally rotating.
  • hydration is continued in said at least one barrel still partially, and up to the whole in a second barrel.
  • the method comprises, between steps (ii) and (iii), an intermediate shearing step.
  • this shearing step is implemented according to the principle of the wire.
  • the hydration at the end of step (ii) is less than 66%.
  • the hydration at the end of step (ii) is between 33 and 66%, preferably between 33 and 50%.
  • the invention also provides a device for manufacturing plasterboard comprising a linear zone of partial hardening-hydration and at least one barrel comprising a central axis 9 around which are arranged a plurality of branches 10a, 10b, 10c, 10d.
  • each branch is divided into a plurality of arms 11a, 11b, 11c, 11d, the surface occupied by the arms representing from 50 to 99% of the surface of the corresponding branch.
  • the barrel comprises from 10 to 150, preferably from 40 to 120, branches.
  • the hardening-hydration zone and the barrel are along two parallel axes.
  • the hardening zone and the barrel are coupled by means of rollers 8a, 8b and 8c, these rollers interpenetrating the branches 10a, 10b, 10c, 10d.
  • the device comprises a shearing device comprising a wire.
  • the invention also provides a barrel comprising a central axis 9 around which are arranged a plurality of branches 10a, 10b, 10c, 10d, each branch being divided into a plurality of arms 11a, 11b, 11c, 11d, the surface occupied by the arm representing from 50 to 99% of the surface of the corresponding branch.
  • the barrel comprises 10 to 150, preferably 40 to 120, branches.
  • the invention relates, according to a third variant, to a method of cooling plasterboard by rotation in a rotating barrel, this barrel comprising a central axis 13 around which are arranged a plurality of branches 14a, 14b, 14c, 14d.
  • the method is implemented in a barrel in contact with the ambient air.
  • the method is implemented in a barrel confined in an enclosure.
  • the method is implemented in a quarter of the barrel situated below the median horizontal, the enclosure possibly being arranged at this zone.
  • the method is implemented works in a barrel area located above the median horizontal, the enclosure possibly being located at this area.
  • the invention relates, according to a fourth variant, to a method of handling plasterboard by rotation in a rotating barrel, this barrel comprising a central axis 13 around which are arranged a plurality of branches 14a, 14b, 14c, 14d.
  • the method is for the inversion of plates.
  • the method is for the alternating inversion of plates.
  • the method is for the pairing of plates.
  • the invention relates, according to a fifth variant, to a method of drying / cooking / reacting flat objects during the rotation of said flat object in at least one rotating barrel, this barrel comprising a central axis 13 around which are arranged a plurality of branches 14a, 14b, 14c, 14d, said barrel being confined in an enclosure 15.
  • each branch is divided into a plurality of comb fingers.
  • said at least one barrel comprises a single drying section.
  • said at least one barrel comprises two separate drying sections, corresponding to two sections of the enclosure.
  • said at least one barrel comprises three or more separate drying sections, corresponding to two sections of the enclosure.
  • the drying is carried out in at least two barrels, with separate drying sections from one barrel to another.
  • the drying is carried out with recovery of the latent heat of condensation of the water.
  • the central axis is a barrel and the fingers are hollow, in relation to said barrel.
  • the central axis is a barrel and the fingers are hollow, in relation to said barrel, and pierced with holes along these.
  • cooling is implemented in part of the last barrel.
  • the cooling zone corresponds to a quarter of the barrel situated below the median horizontal, the enclosure possibly being arranged at this zone.
  • the cooling zone corresponds to a quarter of the barrel situated above the median horizontal, the enclosure possibly being arranged at this zone.
  • the flat object is a wooden plate, plaster tile, plate or tile of clay, cement, or other.
  • Zone 1 represents the plate forming step, this step including the substeps of unwinding the cream paper, mixture to obtain the plaster paste, depositing the paste on the cream paper and unwinding of the gray paper for form the precursor sandwich of the plate.
  • Zone 2 represents the hardening stage until a substantially hydrated product.
  • Zone 3 represents the stage shear in individual plates or by train plates.
  • Zone 4 represents the wet transfer stage (with a flipping operation to place the face cream on top using a device called "flipper" as well as the offset absorption operation between sets of plates before entering the dryer).
  • the zone 5 represents the drying step in a dryer to remove excess water.
  • Zone 6 represents the step of transfer in the dry state (including a possible pairing of plates face cream against cream, resection, wrapping and conditioning).
  • the general diagram of a device according to the invention is described. This includes, as before, a hardening zone, during which the hydration of the plaster begins. This hydration is not completely continued, but only in general up to less than 80%, preferably at a value for example between 33% and 66%, more preferably less than 50%.
  • the term hydration has the classic meaning, namely the CaSO 4 transformation reaction. 0.5H 2 O in CaSO 4 .2H 2 O.
  • the hydration is measured in the conventional way, namely measurement on a curve, which can be the rise in temperature, the gain in weight (or the taking of water), hardening, etc. All conventional methods are appropriate.
  • This hardening zone is represented here schematically by the forming strip 7a, the rollers before shears 7b and the shears 7c itself, as well as the zone 7d.
  • This zone 7d is an acceleration zone 7d (in order to create a space between the plate trains in a conventional manner).
  • This zone is coupled to a stop zone 8, which will serve as an introduction device into a rotating barrel equipped with arms.
  • This stop zone includes rollers 8a, 8b, 8c, 8d, 8e, 8f, 8g, etc. These rollers are typically regularly spaced, intended (as in the prior art) to receive the wet plates, with the difference that here the plates are less hydrated therefore less hard.
  • the spacing of the rollers will be determined to avoid creep of the plates between these supports, which a person skilled in the art can easily determine.
  • the plate is then taken up by the barrel 9, object of the invention.
  • the shearing step can be implemented in a conventional device. It can also be implemented in a more suitable device, of the "butter cutting wire” type. This wire can be single or double, for example as on scissors. Since the hydration level is lower during cutting, the shears can be much simpler, and do not need to be "robust”.
  • a metal wire, stretched across the line, is sufficient. It can be inclined, relative to the plane of the plate and / or to the axis of the line.
  • Barrel 9 includes an axis 10 (usually representing a barrel), on which are fixed branches 10a, 10b, 10c, 10d, 10e, etc. (the connection of branches on the central axis is not shown for the purposes legibility of the figure).
  • Each branch includes several arms 11a, 11b, 11c and 11d, for example, (shaped optimized) and relatively wide to obtain a hardening of the plate without the appearance of creep.
  • the number of arms per branch is determined by several factors, including mainly line speed, length of barrel and number of branches. This number is for example between 3 and 60. If we consider the surface of a complete branch, the arms can generally represent 50 to 99% of the surface of the corresponding branch. The arms can be full or present holes so as to provide both support of the plate without creep and do not slow down the phenomenon evaporation of water that occurs at this stage of the process.
  • the dimensions of the barrel are generally the following: diameter from 3m to 6m, preferably from 3.5 to 4m. Regarding the length, it is very easily adjustable to production needs. An augmentation of capacity is achieved by adding additional arms. Typically the length of the barrel can be understood between 3m and 25m or more.
  • the barrel comprises for example from 10 to 150 branches, preferably from 40 to 120.
  • the barrel rotation speed will be chosen especially depending on the speed of the line, the dimensions and the number of branches of the barrel and process parameters which must lead to hydration complete and good flatness of the plate at the outlet of the Barrel In general, the speed of rotation of the barrel is between 1t / h (turn / hour) and 6t / h, and preferably between 4 and 6 t / h in the case of an installation with a single hydration barrel.
  • This ferry supplies the plates to the plate train on a branch of the barrel.
  • This ferry is conventionally a set of integral supports which move according to a translational movement, then back to position from below, like a skid of a caterpillar example, associated with an up-and-down movement.
  • Hydration in the revolving barrel (s) allows a considerable space saving. Indeed, the section traditional hardening can be reduced, by length, up to 50%. In addition the wet transfer area up to the dryer entrance is also considerably scaled down. In addition, the residence time of each plate in the barrel is identical, which allows to have a rate very homogeneous hydration of the plates. This is still more apparent when a drying barrel is used together with a hydration barrel.
  • the barrels according to the invention can accommodate plates of various lengths, such as 1.50 m up to the total length of the barrel. Indeed, the arms are wide enough to accommodate all plate lengths and all types of plate train of all lengths: the plates, whatever their length, always rest enough (usually mostly) on the barrel arms.
  • the ferry can include rollers; he can too include an endless band, placed between the arms, the axis of the strip being perpendicular to the axis of the barrel. In in such a case, the plate arriving on the strip lands on it, the branches emerge naturally. The speed of rotation of the strip is then adapted to that of the barrel to be able to empty it. Any other known system will apply to plate handling for transfer it from one barrel to another.
  • FIGS. 6a and 6b another embodiment of the invention is described, namely a dryer based on this principle of the rotating barrel. It comprises an axis 13, and branches 14a, 14b, 14c, etc., the whole being placed in an enclosure 15. (Only a half-part has been shown).
  • This dryer of a new type is supplied from the wet transfer according to the prior art or from a hydration barrel according to the invention described above.
  • the operation of the dryer is very simple.
  • the plates enter the dryer, are placed on the branches, and can then under the effect of heat evacuate the water.
  • the enclosure 15 makes it possible to confine the drying zone or section.
  • This enclosure is in relation to an aeraulic circuit, not shown in the diagram, which comprises, in addition to the conduits, one or more heat generators and fans for circulating the hot gases around the plasterboards to be dried.
  • the enclosure 15 can be divided into two or more sections, with the circulation of air or another gas between these sections; this is described in more detail below.
  • Figure 6a shows the case with a single drying section while Figure 6b shows the case with two separate drying sections (different temperatures from one section to another).
  • the gas circulation in the barrel and the enclosure will be described in more detail in Figure 7. Compared to the prior art, this type of dryer allows better homogeneity in drying.
  • Each branch preferably includes (but not necessarily) comb fingers rather than arms (as opposed to the hydration barrel), since there more serious risk of creep and to allow further better heat exchange. It is however possible to use arms, in particular pierced with a multitude of holes.
  • the comb finger has a contact section with the plate of, for example, 0.5 to 10cm, especially 1 to 8cm.
  • the barrel comprises for example from 20 to 150 branches, preferably from 60 to 120.
  • the dimensions of the barrel are usually the following: diameter 3 to 6m, preferably from 3.5 to 4.5m and length from 3 to 25m or more, preferably 6 to 15m.
  • the speed of rotation of the barrel will be chosen according to the number of branches of the barrel, the flow rate of the line, etc. In general, the speed of rotation of the barrel is between 1 t / h and 6 t / h, preferably between 2 and 4t / h.
  • the barrel can be partially or as a whole disposed in the heated enclosure, with a substantially homogeneous atmosphere in the barrel. It will however be preferred that the plates form the gas transport conduits, in order to obtain an "intelligent" circulation of these gases in the enclosure. This makes it possible to have several drying sections with different profiles, and therefore to optimize drying. To obtain good drying uniformity along the length of the plates, in each drying section thus defined, the flow of hot gases will be alternately reversed.
  • each section has an even number of conduits.
  • Burners can also be installed, for example, at both ends of the enclosure.
  • the circulation circuit can in particular be obtained by an appropriate casing, the enclosure 15 being divided at the ends of the barrel into as many sections as desired.
  • the barrel is described and the hot gas circuit is represented by arrows.
  • the enclosure is such that the plates act as deflectors and guides for the hot gases, parallel to the plates. It is thus possible, by modifying the operating conditions, two or more drying sections with distinct conditions. In fact, there can be as many drying sections as there are cells formed by two consecutive plates. More specifically, the enclosure comprises at its two ends a cover 16 and 16 ', which is divided into as many sections as there are drying sections. In the example shown in Figure 7, there are two drying sections, and therefore two compartments at the end covers (16a and 16b, and 16'a and 16'b, respectively).
  • the arrows indicate the direction of circulation of the hot gases.
  • the cowling 16 ′ would include a baffle which makes it possible to use the gases leaving the first section at around 230 ° C as the gas entering the other section at around 220 ° C (or even at the same temperature).
  • FIG. 7b a top view in section, in which the cowling 16 ′ comprises a baffle 17 ′, around which the hot gases circulate.
  • the gas circulation is represented by the arrows.
  • the devices for transporting from one barrel to another have been described above with reference to the hydration barrel.
  • a first barrel for example of the type described above with two drying sections
  • a second barrel with a third drying section.
  • the third drying section for example, has an inlet temperature of about 150 ° C and an outlet temperature of about 100 ° C.
  • the barrels in series can very easily be synchronized.
  • the design of this dryer allows great flexibility as to the type of drying process.
  • the dryer described above is of the direct dryer type. (hot gases in direct contact with the plates, with a gas velocity vector parallel to the plates).
  • a direct drying variant is also possible with this type of dryer.
  • the gases are introduced through the central barrel and then into the pierced fingers (fingers are generally such as contact surface with the plate is minimal while the gases escape through holes arranged along the fingers).
  • the shape of the fingers is suitable for this type of drying is rounded to prevent the plates obstruct the holes and the passage of gases. This process of jet drying has the advantage of presenting better exchange coefficients, therefore a return higher energy.
  • the plasterboard can also be dried using the indirect steam drying process, for example with minor modifications to the barrel.
  • the choice of indirect drying makes it possible to use other cheaper fuels than gas or light fuel oil, such as coal, heavy fuel oil, wood chips or all kinds of waste likely to be burned in a boiler.
  • the steam is introduced into the central axis and then is distributed in the fingers.
  • the steam condensed by heat exchange with the plates is recovered in the barrel or the crown and then returned to the boiler.
  • the barrel suitable for this type of indirect steam drying is relatively similar to that described with reference to Figures 8a and 8b below.
  • the central axis 13 becomes a barrel in which the hot gases charged with steam are reintroduced, in particular from the first sections of the dryer or from the preceding barrels.
  • the branches 14a, 14b, 14c consist of hollow comb fingers connected to the central shaft. The hot gases charged with water vapor then circulate in these comb fingers from the center to the outside, and possibly from the outside to the center.
  • the gases are collected by the external enclosure through a calibrated orifice, several orifices 17a, 17b, 17c, 17d, being (equi) distributed over the periphery.
  • the external enclosure in this case consists of a double wall (15, 15 ') connected to a fan.
  • the ends of the fingers being hollow, they come regularly opposite the orifices (equi) distributed.
  • a gas flow can then be established.
  • the gases go back and forth in the fingers, these being provided with an internal baffle. They are then collected in a crown 13 'around the central barrel. These gases are indirectly in contact with the plates placed on the branches. Under these conditions, the steam water will condense and give in contact with its latent heat of condensation.
  • the condensed water flows along the comb fingers and is collected in the compartmentalized barrel or the crown, from where it is preferably removed by gravity or by means of a pump.
  • the water condensed on the double wall of the enclosure will be evacuated by gravity.
  • This technique can also be implemented according to the teaching of document DE-A-4326877. It is thus possible to recover the hot water vapors produced elsewhere during drying.
  • the barrels can accommodate all conventional energy recovery systems, thus operating as true internal heat exchangers.
  • Figures 8a and 8b therefore represent a barrel can be used for indirect drying and / or heat recovery unit, the main difference between these two modes being the amount of heat provided by one or several burner (s).
  • a dryer barrel which further includes a plate cooling function, always with an insertion zone (E) of the plates, in particular horizontally, and an outlet.
  • the hatched area here represents the drying section.
  • the barrel then presents, at the level of the enclosure for example, an additional quarter.
  • the exit (S) in the form of a day on the outside is not arranged horizontally, but downwards.
  • the plate can cool down naturally or not, in order to avoid possible thermal shocks. A better quality plate is thus obtained than with a traditional dryer.
  • the day being shifted the plate slides naturally on a conveyor belt located below. We could also have this quarter above the horizontal, the cooled plate then leaving horizontally, for example on a conveyor belt.
  • the drying barrels can, as for the hydration barrel, accept different lengths of plates.
  • For the drying barrel to obtain a even better gas flow in the alveoli on can for example arrange the plates alternately, that is to say an edge-to-edge plate on one side of the barrel and the other edge-to-edge on the other side.
  • barrels especially at the drying, allows to put outside the enclosure all drive bodies, and therefore protect them from aggressive hot environment.
  • At least one hydration barrel with at least one drying barrel.
  • the barrel is also useful for handle the plate under conditions sweet.
  • FIG. 10 represents a barrel used for a inversion of the plate, always in conditions soft, thus getting rid of the flipper traditionally used.
  • the turnaround can apply to all plates, and can be alternated; a plate can be extracted just below the horizontal and a another about 180 ° later, still below the horizontal.
  • We can therefore have an alternating reversal of the plates, which may be useful for packaging cream face plates against the cream side.
  • the invention also relates to all the combinations between one or more hydration barrels, and one or more drying barrels (with one or more sections of drying, with or without heat recovery), one or several cooling cylinders, one or more handling barrels are possible.
  • Number of barrels and / or the number of sections are in no way of the present invention.
  • Each barrel may contain only one drying section, but it can also include two, three or more.
  • Each barrel can be with a heater direct or indirect.
  • One or more barrels may be of the heat recovery type. We can combine all these types (function / constitution) of barrels together; all combinations are permitted.
  • plate plaster used in the invention covers the base plates plaster, and in particular but not limited to the plates with one or more paper or cardboard facings (called in English “wall-board”, “plaster-board”), but also in other materials such as a fiber mat glass (so-called “fire” plates), fiber plates (called in English “fiber-board), etc.
  • the invention preferably applies to plates with cardboard ("plaster-board”).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Laminated Bodies (AREA)
EP00403098A 2000-11-08 2000-11-08 Procédé de séchage de plaques de plâtre, dispositif pour sa mise en oeuvre Withdrawn EP1205722A1 (fr)

Priority Applications (20)

Application Number Priority Date Filing Date Title
EP00403098A EP1205722A1 (fr) 2000-11-08 2000-11-08 Procédé de séchage de plaques de plâtre, dispositif pour sa mise en oeuvre
UA2003065267A UA75380C2 (en) 2000-11-08 2001-05-11 Method for hydration of plaster boards and appliance for its implementation
AU2002223741A AU2002223741B2 (en) 2000-11-08 2001-11-05 Method for drying plaster boards, device therefor
KR10-2003-7006346A KR20030062330A (ko) 2000-11-08 2001-11-05 플라스터보드를 건조하는 방법 및 이를 위한 장치
IL15563001A IL155630A0 (en) 2000-11-08 2001-11-05 Method for drying sheets of plasterboard and device for implementing it
CA002428010A CA2428010A1 (en) 2000-11-08 2001-11-05 Method for drying plaster boards, device therefor
NZ525678A NZ525678A (en) 2000-11-08 2001-11-05 Method for drying plaster boards, device therefor
EP01993804A EP1336072A1 (fr) 2000-11-08 2001-11-05 Procede de sechage de plaques de platre, dispositif pour sa mise en oeuvre
RU2003117014/03A RU2266818C2 (ru) 2000-11-08 2001-11-05 Способ сушки гипсовых плит и устройство для его осуществления
PL01360485A PL360485A1 (en) 2000-11-08 2001-11-05 Method for drying plaster boards, device therefor
PCT/FR2001/003408 WO2002039041A1 (fr) 2000-11-08 2001-11-05 Procede de sechage de plaques de platre, dispositif pour sa mise en oeuvre
JP2002541325A JP2004520962A (ja) 2000-11-08 2001-11-05 プラスターボードの乾燥方法およびその装置
CNB018185444A CN1253689C (zh) 2000-11-08 2001-11-05 制造石膏板的方法及实施该方法的装置
BR0115464-8A BR0115464A (pt) 2000-11-08 2001-11-05 Método e dispositivo para fabricação de folhas de chapa de gesso e barril de secagem
AU2374102A AU2374102A (en) 2000-11-08 2001-11-05 Method for drying plaster boards, device therefor
ARP010105220A AR031309A1 (es) 2000-11-08 2001-11-07 Procedimiento de secado de placas de yeso, dispositivo para su puesta en practica
ZA200303188A ZA200303188B (en) 2000-11-08 2003-04-24 Method for drying sheets of plasterboard and device for implementing it.
IL155630A IL155630A (en) 2000-11-08 2003-04-28 Method for drying gypsum boards and a device for its application
US10/429,833 US20030217799A1 (en) 2000-11-08 2003-05-06 Method for drying sheets of plasterboard and device for implementing it
NO20032044A NO20032044L (no) 2000-11-08 2003-05-07 Fremgangsmåte for törking av gipsplater og anordning for implementering avsamme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00403098A EP1205722A1 (fr) 2000-11-08 2000-11-08 Procédé de séchage de plaques de plâtre, dispositif pour sa mise en oeuvre

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EP1205722A1 true EP1205722A1 (fr) 2002-05-15

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EP00403098A Withdrawn EP1205722A1 (fr) 2000-11-08 2000-11-08 Procédé de séchage de plaques de plâtre, dispositif pour sa mise en oeuvre
EP01993804A Withdrawn EP1336072A1 (fr) 2000-11-08 2001-11-05 Procede de sechage de plaques de platre, dispositif pour sa mise en oeuvre

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EP01993804A Withdrawn EP1336072A1 (fr) 2000-11-08 2001-11-05 Procede de sechage de plaques de platre, dispositif pour sa mise en oeuvre

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US (1) US20030217799A1 (es)
EP (2) EP1205722A1 (es)
JP (1) JP2004520962A (es)
KR (1) KR20030062330A (es)
CN (1) CN1253689C (es)
AR (1) AR031309A1 (es)
AU (2) AU2374102A (es)
BR (1) BR0115464A (es)
CA (1) CA2428010A1 (es)
IL (2) IL155630A0 (es)
NO (1) NO20032044L (es)
NZ (1) NZ525678A (es)
PL (1) PL360485A1 (es)
RU (1) RU2266818C2 (es)
UA (1) UA75380C2 (es)
WO (1) WO2002039041A1 (es)
ZA (1) ZA200303188B (es)

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US7851057B2 (en) 2003-03-19 2010-12-14 United States Gypsum Company Acoustical panel comprising interlocking matrix of set gypsum and method for making same
CN107144114A (zh) * 2017-06-08 2017-09-08 湖南雨泉医药有限公司 一种根茎类中药材烘干装置
CN114485119A (zh) * 2021-12-13 2022-05-13 肇庆北新建材有限公司 一种板材干燥方法、系统及计算机可读存储介质

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CA2476497C (en) * 2002-02-26 2011-04-19 Lafarge Platres Method of manufacturing sheets based on hydraulic binder, production line for producing such sheets and apparatus for making an impression
FR2838370B1 (fr) * 2002-04-10 2004-05-28 Lafarge Platres Procede de fabrication de plaques de platre a quatre bords amincis
RU2354551C2 (ru) 2003-08-25 2009-05-10 Ляфарж Плятр Панель на основе водного связующего со скошенными кромками, способ изготовления панели со скошенными кромками на основе водного связующего и линия по производству таких панелей, а также способ создания внутренней конструкции
RU2607434C2 (ru) * 2015-06-17 2017-01-10 Вадим Владимирович Батуков Устройство для сушки плит или блоков из гипса или гипсобетона.
CN105444598B (zh) * 2015-12-09 2017-06-20 无锡西源电力装备厂 一种复合式换热器
CN107457893B (zh) * 2017-08-28 2020-03-31 肇庆高新区格兰新材料科技有限公司 一种环保防水板材的养护工艺及其设备
DE102019002671A1 (de) * 2019-04-11 2020-10-15 Grenzebach Bsh Gmbh Verfahren zum Trocknen plattenförmiger Materialien und Trocknungsvorrichtung
CN113359636B (zh) * 2021-06-22 2023-07-07 中建材创新科技研究院有限公司 一种应用于石膏板生产翻板的位置调控系统及方法
CN113566545A (zh) * 2021-07-26 2021-10-29 清远市兆成环保包装纸制品有限公司 一种造纸用双层烘干设备
CN114800863A (zh) * 2022-01-25 2022-07-29 杨文权 高级耐水纸面石膏板生产用烘干设备及石膏板生产工艺
CN118305882B (zh) * 2024-04-28 2024-10-18 常爱兵 一种建筑石膏板快速干燥煅烧机

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US5012595A (en) * 1989-10-19 1991-05-07 Christian Everett R Rotary cross-banding veneer dryer
WO1994013443A1 (en) * 1992-12-08 1994-06-23 Walter Nilsen Method and plant for the production of gypsum panels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7851057B2 (en) 2003-03-19 2010-12-14 United States Gypsum Company Acoustical panel comprising interlocking matrix of set gypsum and method for making same
CN107144114A (zh) * 2017-06-08 2017-09-08 湖南雨泉医药有限公司 一种根茎类中药材烘干装置
CN114485119A (zh) * 2021-12-13 2022-05-13 肇庆北新建材有限公司 一种板材干燥方法、系统及计算机可读存储介质

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NZ525678A (en) 2005-11-25
AU2374102A (en) 2002-05-21
CN1473259A (zh) 2004-02-04
RU2266818C2 (ru) 2005-12-27
NO20032044D0 (no) 2003-05-07
CN1253689C (zh) 2006-04-26
CA2428010A1 (en) 2002-05-16
WO2002039041A1 (fr) 2002-05-16
UA75380C2 (en) 2006-04-17
IL155630A0 (en) 2003-11-23
ZA200303188B (en) 2004-07-16
IL155630A (en) 2007-02-11
AU2002223741B2 (en) 2006-03-16
NO20032044L (no) 2003-07-02
KR20030062330A (ko) 2003-07-23
EP1336072A1 (fr) 2003-08-20
AR031309A1 (es) 2003-09-17
BR0115464A (pt) 2003-08-26
JP2004520962A (ja) 2004-07-15
PL360485A1 (en) 2004-09-06
US20030217799A1 (en) 2003-11-27

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