EP2024701B1 - Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir - Google Patents

Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir Download PDF

Info

Publication number
EP2024701B1
EP2024701B1 EP07722957.3A EP07722957A EP2024701B1 EP 2024701 B1 EP2024701 B1 EP 2024701B1 EP 07722957 A EP07722957 A EP 07722957A EP 2024701 B1 EP2024701 B1 EP 2024701B1
Authority
EP
European Patent Office
Prior art keywords
gas
conveyor worm
drier according
conveyor
dried
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.)
Not-in-force
Application number
EP07722957.3A
Other languages
German (de)
English (en)
Other versions
EP2024701A1 (fr
Inventor
Willem Westerveld
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.)
Ijzerlo Holding BV
Original Assignee
Ijzerlo Holding BV
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 Ijzerlo Holding BV filed Critical Ijzerlo Holding BV
Publication of EP2024701A1 publication Critical patent/EP2024701A1/fr
Application granted granted Critical
Publication of EP2024701B1 publication Critical patent/EP2024701B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F26B3/092—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating
    • F26B3/0923—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed agitating the fluidised bed, e.g. by vibrating or pulsating by mechanical means, e.g. vibrated plate, stirrer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F26B11/182—Arrangements for the supply or exhaust of gaseous drying medium, e.g. perforated tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F26B11/184—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement provided with internal means for mixing, stirring or conveying the materials to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined

Definitions

  • the invention relates to a dryer for pourable Trocknungsgut, with a to be traversed by the drying material conveying path with at least one rotatable screw conveyor, in which the drying material is flowed through by a gas, wherein the conveying path forming at least one rotatable screw conveyor over its full extent with a gas-permeable and well-impermeable Shell is mounted on the auger and is rotatable with the latter, wherein the screw conveyor with the jacket is arranged in a substantially gas-tight housing with at least one gas inlet and at least one gas outlet, wherein the housing in its interior in a connected to the gas inlet Gas supply and a gas outlet connected to the gas discharge is divided, wherein the gas supply and the Gasabrios Scheme radially outside the screw conveyor by two oppositely arranged in the housing separation and / or Leitwitz e are separated from each other, each abutting on its screw conveyor longitudinal edge by means of sliding seals on the outer circumference of the shell of the screw conveyor, so that the
  • a dryer with the features indicated above is made FR-A-2 578 964 known.
  • the gas used for drying the material to be dried flows on the inflow side only through the gas-permeable jacket of the screw conveyor into it; any means for conducting and guiding the gas are not provided on the upstream side.
  • EP-B-1 110 047 For example, a method and an apparatus for drying mushy substances are known.
  • This device is used to dry fiber-containing pulp, such as chemical pulp, mechanical pulp, thermomechanical pulp, TMP (Thermo Mechanical Pulp), deinked pulp or fibrous sludge, that is, from materials obtained in papermaking.
  • the wet pulp is first dewatered mechanically, for example by means of a drum or screw press. Thereafter, the pulp passes through a dryer in which drying gas is blown through a sheet of the pulp to evaporate water from the pulp.
  • the pulp passes through a nip-like drying space delimited by first and second cylindrical surfaces, both apertured, the pulp being forced along the first or second surface by a wing-like device in the nip-drying space becomes.
  • the pulp forming the material to be dried is here of mushy consistency and fills the gap between the cylindrical surfaces during the drying process. So that the drying gas can pass through the pulp, the thickness of the layer of the pulp must not be too large; Therefore, a gap-like drying room is used here.
  • a disadvantage of this known dryer the energy consumption is relatively high because the material to be dried forms a compact mass with relatively high flow resistance in the gap, so that large pressure differences must be generated. Nevertheless, the efficiency of such a drying process and dryer remains limited because the compact mass of the material to be dried in the gap space provides the drying gas flowing through only a relatively small surface, where evaporation and entrainment of moisture can take place. Due to the compactness of the material to be dried in its passage through the dryer, there is also the danger of overdrying or overheating of parts of the material to be dried, in particular the parts of the material to be dried located radially outside in the gap, where the drying gas flows in. This problem does not occur only when drying to a still relatively high residual moisture, which is sufficient for an application in papermaking, but is not sufficient for many other applications, since there often higher drying with very low residual moisture must be achieved.
  • Another dryer is off CH-A-485 993 known.
  • This dryer has a plurality of mutually parallel, horizontally extending augers, each auger lies in a trough-shaped tray.
  • the lower area of each tub is rounded to the outer diameter of the auger and with Provided openings.
  • About one or more input devices with dosing the material to be dried is fed to the screw conveyor.
  • the drying material to be dried is conveyed through the dryer.
  • a gas is passed from au- ⁇ en forth through the openings in the lower region of the trough-shaped trays, which flows through the drying material and this dries.
  • Another dryer is off EP-A-0 165 916 known.
  • a dryer is disclosed in which a screw conveyor for conveying the material to be dried is used, which is arranged above a perforated bottom. Through the bottom of a gas is passed, which flows through the drying material and this dries.
  • the screw conveyor here consists of a relatively narrow helix, which is mounted radially on the outside of a tube assembly.
  • the tube arrangement can be flowed through by a heat transport medium in order to additionally introduce heat as drying energy into the material to be dried in this way.
  • the object is to provide a dryer of the type mentioned above, which avoids the disadvantages mentioned above and which provides a reliable function with high efficiency with a simple construction and in particular improves the inflow of the gas into the screw conveyor is.
  • the dryer according to the invention a particularly accurate flow control is advantageously ensured, which avoids gas and energy losses and ensures a consistently high efficiency and a consistently good, reproducible drying result.
  • the gas guide contributes to a favorable for the formation of the fluidized bed in the drying material flow formation, distribution and management of the gas, which is introduced through the jacket into the screw conveyor. Disturbing and efficiency-reducing erroneous flows of the gas are thus avoided. Since the screw conveyor is arranged horizontally or inclined to the horizontal, there is a reliable and uniform promotion of the material to be dried by the screw conveyor, wherein the screw conveyor at the same time ensures a favorable forced mixing and circulation of the material to be dried. Disturbances in the Trocknungsgutierilini, as may occur, for example, in known vertical driers with gravity conveyance of the material to be dried, are avoided here safe.
  • the channel is provided with holes arranged in a regular grid for the gas guided into the conveyor screw.
  • the gas in particular the speed, directivity and distribution imparted to ensure a homogeneous fluidized bed.
  • the channel is preferably flexible, so that it adapts well to the outer circumference of the screw conveyor or of the surrounding jacket and applies.
  • the channel is preferably made of a plate or plastic film or formed from a metal sheet.
  • the material of the gutter itself can also form the seals.
  • the material to be dried can be taken along in the direction of rotation, depending on its Scblinigenschaften in the rotation of the screw conveyor, whereby then during the drying process, the fluidized bed occupies a position which is slightly twisted from the horizontal plane in the direction of rotation of the screw conveyor.
  • the channel as a whole in the circumferential direction of the screw conveyor can be rotated and fixed in desired positions.
  • Another embodiment proposes that the channel in its seen in the circumferential direction of the auger extension is adjustable and can be fixed in different directions in the circumferential direction.
  • the gas supply to the screw conveyor with respect to the size of the peripheral region through which the gas enters the screw conveyor can be varied and optimized for the respective application.
  • the dryer is a continuous dryer with a continuously running screw conveyor. This enables a continuous drying operation, which is advantageous for many applications in continuously operating production or processing plants.
  • the dryer may be a batch dryer with a feed screw running during filling and emptying of the dryer, wherein during a drying of the material to be dried the conveyor screw is stationary or rotates back and forth.
  • the back and forth turning of the screw conveyor serves here to move the material to be dried during drying, without promoting it, which can be favorable for the drying process, in particular for a uniform drying of all parts of the material to be dried.
  • a weighing process for determining the weight or a change in weight of the Trocknungsgutcharge is particularly simple, because there are no disturbing influences by moving dryer parts.
  • Such weighing processes are also possible when the auger is running, although movements of the auger can then be disrupted, but can be sufficiently eliminated, for example, by averaging.
  • the dryer is operated with identical design, either alternatively or alternately in one of two modes of operation, ie continuous drying or batch drying, whereby it can be used flexibly.
  • the sheath consists of a latticed or perforated material or a woven or braided material, wherein the material is preferably metal or plastic.
  • the jacket is on the one hand sufficiently permeable to the fluid which generates the fluidized bed and, on the other hand, is sufficiently impermeable to the material to be dried.
  • the design of the shell and the choice of materials depend on the requirements in each case, in particular on the size of the individual particles of the material to be dried and on the temperatures to be used during the drying.
  • baffles are preferred for adaptation to different drying properties provided that they are seen in the circumferential direction of the screw conveyor together and / or individually adjustable and fixed in selected positions.
  • the sliding seals are expedient in the radial direction of the screw conveyor adjustable or adjustable.
  • the adjustment or readjustment may e.g. if necessary by manual intervention, e.g. via adjusting screws, done or run automatically and steadily, e.g. by means of an acting on the sliding seals in the direction of the jacket and this applying against the jacket biasing force, which can be generated for example by one or more springs.
  • the housing has at least one closed in the drying operation, releasable for cleaning and maintenance opening, that the screw conveyor is interchangeable and that through the at least one opening, the screw conveyor can be removed and installed.
  • necessary cleaning and maintenance work can be performed easily.
  • the interchangeability of the screw conveyor allows a simple and time-saving adaptation of the dryer to different drying tasks, in particular different drying goods that require different augers. If the jacket is connected to the screw conveyor, this can be replaced together with the screw conveyor in one operation. Thus, it is possible to hold for a dryer different augers or different units of auger and mantle, which then accordingly be installed in the housing of the respective drying task.
  • the opening is closable by a removable or adjustable top or side hood of the housing.
  • the opening can be opened and closed quickly and easily. At the same time the opening is easily accessible.
  • the invention provides that the at least one gas inlet is associated with a gas conditioning or upstream.
  • the gas can be optimized in its properties for the respective intended drying purpose, in particular brought to a certain temperature and / or humidity.
  • the casing surrounding the conveyor screw is designed such that it is impermeable to the material to be dried. Nevertheless, however, particularly fine, dust-like particles which are contained in the drying material or which form in the dryer during drying can pass through the jacket. In order to avoid a discharge of this dust from the dryer into the environment, it is expedient to add or arrange a dust filter at least one gas outlet.
  • the device according to the invention can also be used here specifically or only for the dedusting of a pourable material.
  • the at least one gas inlet is a pressure fan upstream or upstream and / or that the at least one gas outlet is a suction fan or downstream.
  • the blower or blowers With the blower or blowers, the gas is conveyed through the dryer.
  • a pressure blower When using a pressure blower, a particularly high gas throughput is possible.
  • a suction fan on the side of the gas outlet is ensured that in the interior of the housing relative to the ambient pressure during operation, a negative pressure prevails. This ensures that gas and any dust inside it can not escape into the environment, protecting the environment from potentially harmful effects of the drying gas or dust from the dryer.
  • the material to be dried must be introduced into the auger from the outside.
  • a first end of the screw conveyor is assigned to the environment substantially gas-tight sealed feed-in. If the pressure conditions are such that no relevant gas exchange takes place, or a certain gas exchange is not disturbing, the screw conveyor can also be designed simply open at its input.
  • the feed device preferably comprises an adjustable in its capacity vibratory conveyor or adjustable in their performance input screw as metering.
  • an adjustable in its capacity vibratory conveyor or adjustable in their performance input screw as metering.
  • a precisely metered feeding of drying material to be dried in the screw conveyor is possible.
  • the delivery rate of the input device can be changed, for example, if the type of drying material to be dried or its drying properties change.
  • the feed-in device comprises a delivery pipe concentric with the feed screw in its first end, and that the first end of the feed screw is closed by an elastic annular disk sealingly surrounding the feed pipe.
  • the material to be dried can get into the screw without gas from the auger to the outside or ambient air can get into the auger in disturbing extent.
  • a preferred option for gas-tight design of the dispensing device is that it is formed with a lock, in particular a rotary valve.
  • the good dispensing device is expediently higher than the goods input device, which facilitates, for example, the forwarding of the material to be dried to further processing facilities or the immediate packaging of the material to be dried.
  • the screw conveyor has a central axis projecting on one or both sides of the end face or one or two axle stubs projecting only on the front side for screw mounting.
  • the auger is expediently additionally mounted in the channel and / or on bearing rollers.
  • the bearing rollers are then suitably arranged on the end remote from the projecting axle or the projecting axle stub and / or between the ends of the conveyor worm, preferably in a closed mantle end region or mantle intermediate region of the auger.
  • the other end of the screw conveyor is then conveniently mounted by means of the axle or stub axle.
  • this is preferably a closed shaft with an outer diameter which is small in relation to the outer diameter of the screw conveyor, so as not to hinder the desired formation of the fluidized bed of the material to be dried in the auger by the shaft or disturb.
  • the screw conveyor For rotating the screw conveyor is provided that it is rotatably driven by means of at least one drive motor via a gear or Reibrad- or belt or chain transmission.
  • the screw conveyor can be set reliably in rotation, wherein the rotational speed of the screw conveyor can be set to suitable values by a speed setting of the motor and thus the conveying capacity of the screw conveyor and the throughput of the dryer are adjustable in the desired manner.
  • a suitable transmission ratio With a suitable transmission ratio, a relatively low drive power for the rotation of the conveyor screw and for the conveyance of the drying material in the screw is sufficient, which contributes to a low energy consumption of the dryer.
  • the housing is divided into a plurality of gas-side housing sections separated, each case a separate gas flow is feasible.
  • the gas streams are air streams, wherein the air can be advantageously removed from the environment and discharged into the environment after the drying process, preferably after passing through the dust filter.
  • a circulation of a gas is conceivable, for example of nitrogen.
  • a preferred embodiment provides that viewed in the conveying direction of the material to be dried at least a first housing portion forms a drying zone, which is traversed by a warm drying gas flow, and that at least a second housing portion forms a cooling zone, which is flowed through by a cool gas stream.
  • the drying material can be dried, wherein when used the warm drying gas flow, the drying material is necessarily heated.
  • the material to be dried can be cooled again in order to avoid damage caused by an excessively high temperature of the material to be dried. This also makes it possible, for example, to pack the drying material immediately after drying and after the subsequent cooling without the risk of harmful condensation forming.
  • one or more temperature and / or humidity sensors are arranged in the gas feed region and / or in the gas discharge region, with which a gas temperature and / or moisture can be detected in the drying operation, and the blower (s) and / or the gas conditioning device (s) and / or a drying material input quantity and / or the screw conveyor rotational speed can be controlled or regulated in accordance with measured values detected by the sensor (s).
  • a programmable electronic control unit is expediently used, which adjusts the aforementioned parameters of the drying appropriately according to the measurement signals supplied by the sensors and changed if necessary and controls the sequence and the result of the drying process and if necessary also documented.
  • the dryer according to the invention can also be used as a device for other tasks in the treatment of bulk materials by means of a gaseous medium, for example, when a bulk material is to be intensively and as completely as possible brought into contact with a gas.
  • a gaseous medium for example, when a bulk material is to be intensively and as completely as possible brought into contact with a gas.
  • the treatment of a gas by contact with a pourable material conceivable.
  • the bulk material to be dried is supplied to the screw conveyor in an amount that it only partially fills the cross section of the screw conveyor in the interior of the shell, that the gas in a lower region of the screw conveyor so is introduced through the shell in the interior of the screw conveyor, that forms a fluidized bed in the drying material and that the gas is discharged after passing through the drying material forming the fluidized bed in an upper region of the screw conveyor through the jacket.
  • the high efficiency is in particular caused by the fluidized bed in the material to be dried, so that the drying process is particularly efficient, despite or just because of the only partial filling of the cross section of the screw conveyor with material to be dried.
  • the bulkable material to be dried is preferably supplied to the conveyor screw in an amount such that it only fills the cross section of the conveyor screw by 30 to 60%, preferably by 40 to 50%. This ensures in any case sure that the formation of the desired fluidized bed in the drying material can be done without hindrance.
  • the dryer 1 shown there has a horizontally extending screw conveyor 2, which is surrounded at its periphery by a jacket 20.
  • the screw conveyor 2 has a central, in relation to the outer diameter of the screw conveyor thin axis 23, with which the screw conveyor 2 including the attached thereto shell 20 is rotatably mounted in a substantially closed housing 3.
  • the jacket 20 is designed so that it is permeable to gas, but impermeable to a Trocknungsgut.
  • first end portion 21 of the screw conveyor 2 projects slightly beyond the front end of the housing 3 there. At this first end region 21 of the screw conveyor 2 drying material to be dried is fed continuously and metered into the conveyor screw 2 via a feed input device 4.
  • the goods input device 4 comprises, for example, an adjustable or adjustable vibratory conveyor, which introduces the feed material, which is initially poured into the input device 4, into the conveyor screw 2 via a conveyor tube 40.
  • the front end of the screw conveyor 2 and the shell 20 is closed by an elastic annular disc 41 with a central opening for the delivery tube 40 here. With the delivery pipe 40, the annular disk 41 forms a simple, but here sufficient rotary seal.
  • the lying outside of the housing 3 short auger and Mantelend Scheme 21 is performed well and gas tight at its periphery.
  • two bearing rollers 27 are arranged in the lower region of the jacket 20 below this end region 21 of the jacket 20, on which the jacket 20 rests.
  • a holding-down roller 27 'arranged above the end region 21 of the jacket 20 ensures that during operation of the dryer 1 the conveying screw 2 retains its intended position and can not escape upwards.
  • a gas for example air
  • a gas for example air
  • the gas streams are each guided by one or more GaszuWORKS 29 so that they flow through the screw conveyor 2 with the drying material therein substantially in the transverse flow, wherein moisture contained in the Trocknungsgut is taken from the gas stream.
  • the gas streams are then removed via at least one, here two gas discharge 33 and two gas outlets 34 from the dryer 1.
  • the gas outlets 34 may be one or more dust filter upstream or downstream.
  • blowers are e.g. designed as a pressure fan and the gas inlets 30 connected upstream or assigned. Alternatively, they are designed as a suction fan and the gas outlets 34 assigned or downstream, to generate a negative pressure in the interior of the housing 3 relative to the environment. This vacuum avoids a discharge of Staubgut from the interior of the housing 3 in the environment. It is also possible to use both types of blowers.
  • the housing 3 has three housing areas, namely two first housing areas 3.1 and 3.1 'and a second housing area 3.2.
  • the first two housing sections 3.1. and 3.1 ' are used to dry the material to be dried with a heated gas, such as warm air, while the second housing section 3.2 serves here for cooling the previously heated during drying drying material.
  • a cool gas stream eg. B. a cooled air flow, out.
  • the dried and re-cooled drying material then leaves in the second, in FIG. 1
  • the screw conveyor 2 is closed, for example by the jacket 20 is gas-tight here to prevent escape of gas in this way .
  • a lock such as rotary valve, integrated to avoid a gas or air passage through the Gutausgabe listening 5.
  • the dried material to be dried falls down out of the good dispensing device 5 and can for example be filled directly into transport or storage containers or fed to a further conveyor line for any further processing required.
  • the housing 3 of the dryer 1 is closed in order to ensure the desired gas flows.
  • the housing 3 can be opened by a top-side hood 35 is pivoted or completely removed here. Through the then open top of the housing 3, the interior of the housing 3 is accessible.
  • the screw conveyor 2 including its shell 20 can be replaced quickly and easily.
  • the dryer 1 can be equipped with different screw conveyors 2 and different jackets 20 in order to adapt the dryer 1 to different drying tasks, in particular different dry goods.
  • the dryer 1 is suitably associated with a not specifically shown in the drawing control and / or regulating device with which the operation of the dryer 1 is monitored and controlled, in particular by moisture and temperatures recorded gas temperatures, gas volumes and / or gas velocities regulated and the Conveying the donation device 4, the screw conveyor 2 and the Gutausgabe worn 5 are regulated as needed.
  • FIG. 2 shows the dryer 1 in cross section through the first housing portion 3.1.
  • the screw conveyor 2 In the center of the housing 3 is the screw conveyor 2 with the surrounding, rotating together with the screw 2 mantle 20.
  • the Trocknungsgut 6 is shown here occupying only a less than half of the cross section Space occupied in the screw conveyor 2.
  • a gas inlet 30 can be seen through which a gas, for. B. heated air, in a Gaszulite Suite 31 in the interior of the housing 3 can be introduced.
  • the gas channel 31 leads, corresponding to the position of the material to be dried 6 in a lower cross-sectional part of the screw conveyor 2, to the in FIG. 2 downwardly facing peripheral region of the screw conveyor 2 and the shell 20th
  • a gas guide element in the form of a perforated groove 26th arranged in this lower region of the screw conveyor 2 and the jacket 20 is directly on the outer periphery of the shell 20, a gas guide element in the form of a perforated groove 26th arranged.
  • This groove 26 consists of a plate or foil made of metal or plastic with formed therein, arranged in a regular narrow grid openings.
  • the channel 26 can also be used to support a storage of the screw conveyor 2, in which case the screw conveyor 2 with its jacket 20 slidably lies in the channel 26.
  • the perforated channel 26 allows a passage of the gas flow from the gas supply 31 through the holes in the channel 26 and through the jacket 20 into the interior of the screw conveyor 2 and in this way through the Trocknungsgut 6 through in such a way that in the Trock Vietnamesesgut 6 forms a fluidized bed.
  • the drying material 6 swirling up in the fluidized bed and partially lifting off from the inner surface of the jacket 20 because this only partially fills the cross-section of the screw 2.
  • the flowing gas advantageously ensures a good contact of the channel 26 on the outer circumference of the shell 20 of the screw conveyor 2, whereby gap spaces between the channel 26 and the outer periphery of the shell 20, which could interfere with the gas flow are avoided.
  • the gas supply area 31 is delimited by separation and guide walls 32.
  • Shell-side edges of the separation and baffles 32 lie with the interposition of sliding seals 36 and 36 'on the outer circumference of the shell 20 in order to guide the gas flow as completely as possible through the Trocknungsgut 6.
  • sliding seals 36 and 36 'end here also the two longitudinal edges of the perforated channel 26th
  • the upper portion of the screw conveyor 2 is covered by the hood 35, which forms a pivotable or removable part of the housing 3.
  • FIG. 3 shows the in FIG. 1 right end portion 22 of the screw conveyor 2 with the there arranged Gutausgabe Road 5.
  • FIG. 3 shows the in FIG. 1 right end portion 22 of the screw conveyor 2 with the there arranged Gutausgabe disturbing 5.
  • FIG. 3 shows the in FIG. 1 right end portion 22 of the screw conveyor 2 with the there arranged Gutausgabe disturbing 5.
  • the central axis 23 visible.
  • the dried material to be dried enters the discharge hopper 50 and falls through it by gravity downward, for example in a transport or storage container or on another conveyor line.
  • FIG. 4 shows the dryer 1 in a modified version in cross-section through a first portion of the housing 3.
  • the screw conveyor 2 In the center of the housing 3, the screw conveyor 2 with this surrounding, together with the screw 2 rotatable jacket 20.
  • the Trocknungsgut 6 Inside the screw conveyor 2 and the shell 20 is the Trocknungsgut 6, which occupies only a less than half of the cross-section occupying space in the screw conveyor 2.
  • the flowable conveyed 6 is taken in the conveying direction of the screw conveyor 2, whereby a transport of the material to be dried 6 is effected by the dryer 1.
  • a gas inlet 30 can be seen through which a gas, for. B. heated air, in a Gaszulite Suite 31 in the interior of the housing 3 can be introduced.
  • the gas channel 31 leads, corresponding to the position of the material to be dried 6 in a lower cross-sectional part of the screw conveyor 2, to the in FIG. 2 downwardly facing peripheral region of the screw conveyor 2 and the shell 20th
  • a gas guide element in the form of a perforated channel 26 is arranged directly on the outer circumference of the jacket 20.
  • This groove 26 consists of a plate or foil made of metal or plastic with formed therein, arranged in a regular narrow grid openings.
  • the channel 26 can also serve to support the auger 2, wherein the auger 2 with its jacket 20 slidably lies in the channel 26.
  • the perforated channel 26 allows a passage of the gas flow from the gas supply 31 through the holes in the channel 26 and through the gas-permeable jacket 20 into the interior of the screw conveyor 2 and in this way through the Trocknungsgut 6 therethrough in such a way that in Drying material 6 forms a fluidized bed. It is inside the screw conveyor 2 and the shell 20 sufficient space for alswirbelnde in the fluidized bed and partially contrasting with the inner surface of the shell 20 Trocknungsgut 6 because this only partially fills the cross section of the screw 2.
  • the gas supply area 31 is delimited by separation and guide walls 32.
  • Shell-side edges of the separation and baffles 32 lie with the interposition of sliding seals 36 and 36 'on the outer circumference of the shell 20 in order to guide the gas flow as completely as possible through the Trocknungsgut 6.
  • the arrangement of the holes in the groove 26 may be made so that holes are present only where inside the jacket 20 drying material 6 is located, while in the two upper edge regions of the channel 26 near the walls 32 then no holes are provided.
  • the upper portion of the screw conveyor 2 is covered by a hood 35, which forms a pivotable upper part of the housing 3 here.
  • the hood 35 is shown in a pivoted by about 90 °, open position. For pivoting the hood 35, it only needs to be separated from a gas discharge line connected to the gas outlet 34.
  • the Conveying screw 2 In the open position of the hood 35 is the Conveying screw 2 with its jacket 20 upwards and can, if necessary after disassembly of drive or coupling elements, are removed from the housing at the top without the separation and guide walls 32 and their seals 36, 36 'being removed. or dismantled.
  • the screw conveyor 2 can be exchanged with the casing 20 quickly and easily, eg during wear or for adaptation of the dryer 1 to different drying goods 6 to be treated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)

Claims (28)

  1. Séchoir (1) pour produit de séchage en vrac (6) comprenant un trajet de transport à parcourir par le produit de séchage (6) avec au moins une vis sans fin rotative (2) dans lequel le produit de séchage (6) peut être traversé par un gaz,
    - dans lequel l'au moins une vis sans fin rotative (2) formant le trajet de transport est entourée sur sa périphérie entière par une enveloppe perméable au gaz et imperméable au produit (20) qui est montée sur la vis sans fin (2) et peut tourner avec celle-ci,
    - dans lequel la vis sans fin (2) est disposée avec l'enveloppe (20) dans un logement essentiellement étanche au gaz (3) avec au moins une entrée de gaz (30) et au moins une sortie de gaz (34),
    - dans lequel le logement (3) est divisé dans sa partie intérieure en une région d'amenée de gaz (31) reliée à l'entrée de gaz (30) et une région d'évacuation de gaz (33) reliée à la sortie de gaz (34),
    - dans lequel la région d'amenée de gaz (31) et la région d'évacuation de gaz (33) sont séparées l'une de l'autre radialement en dehors de la vis sans fin (2) par deux parois de séparation et/ou de guidage (32, 32') disposées à l'opposé l'une de l'autre dans le logement qui reposent chacune au niveau de leur arête longitudinale tournée vers la vis sans fin (2) au moyen de joints de glissement (36, 36') sur la périphérie externe de l'enveloppe (20) de la vis sans fin (2) de sorte que la région d'amenée de gaz (31) et la région d'évacuation de gaz (33) sont reliées ensemble du point de vue de l'écoulement uniquement à travers la vis sans fin (2),
    - dans lequel le gaz peut être introduit dans une région inférieure de la vis sans fin (2) à travers l'enveloppe (20) dans la partie intérieure de la vis sans fin (2) en formant un lit fluidisé dans le produit de séchage (6) et
    - dans lequel le gaz peut être évacué après avoir traversé le produit de séchage (6) formant le lit fluidisé dans une région supérieure de la vis sans fin (2) à travers son enveloppe (20),
    - dans lequel le produit de séchage en vrac (6) ne remplit qu'en partie la section transversale de la vis sans fin (2) à l'intérieur de l'enveloppe (20) lors du fonctionnement du séchoir (1),
    - dans lequel un élément de guidage de gaz non rotatif de forme adaptée à l'enveloppe (20), reposant sur la périphérie externe de l'enveloppe (20) sous la forme d'une rigole (26) pourvue d'orifices traversants est disposé au sein du logement (3) dans la région d'amenée de gaz (31) au moins dans une région périphérique de la vis sans fin (2) dans laquelle le gaz entre dans la vis sans fin (2), parallèlement à l'enveloppe (20) de la vis sans fin (2), rigole qui repose au niveau de ses arêtes longitudinales écartées l'une de l'autre dans le sens périphérique de la vis sans fin (2) au moyen de joints de glissement (36, 36') sur la périphérie externe de l'enveloppe (20) de la vis sans fin (2),
    - dans lequel une des arêtes longitudinales de la rigole (26) et l'arête longitudinale voisine de celle-ci de l'une des parois de guidage et de séparation (32) ainsi que l'autre arête longitudinale de la rigole (26) et l'arête longitudinale voisine de celle-ci de l'autre paroi de guidage et de séparation (32') sont à chaque fois disposées directement l'une à côté de l'autre ou reliées ensemble et sont pourvues d'un joint de glissement commun (36, 36') chacune et
    - dans lequel la vis sans fin (2) est disposée horizontalement ou inclinée vers l'horizontale, dans lequel l'angle par rapport à l'horizontale se monte à 45° maximum en cas de disposition inclinée.
  2. Séchoir selon la revendication 1, caractérisé en ce que la rigole (26) est pourvue d'orifices disposés dans un quadrillage régulier pour le gaz dirigée dans la vis sans fin (2).
  3. Séchoir selon la revendication 1 ou 2, caractérisé en ce que la rigole (26) est flexible.
  4. Séchoir selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la rigole (26) est formée d'une plaque ou d'un film de plastique ou d'une tôle métallique.
  5. Séchoir selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la rigole (26) peut tourner en entier dans le sens périphérique de la vis sans fin (2) et peut être fixée dans des positions souhaitées.
  6. Séchoir selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la rigole (26) peut être déplacée dans son prolongement vue dans le sens périphérique de la vis sans fin (2) et peut être fixée dans différents prolongements dans le sens périphérique.
  7. Séchoir selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il est un séchoir continu avec une vis sans fin fonctionnant en permanence (2).
  8. Séchoir selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il est un séchoir à fonction discontinue avec une vis sans fin (2) fonctionnant lors d'un chargement et d'un vidage du séchoir (1), dans lequel la vis sans fin (2) est immobile ou tourne en va-et-vient pendant un séchage du produit de séchage (6).
  9. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que l'enveloppe (20) se compose d'un matériau en forme de grille ou percé ou d'un matériau en tissu ou tressé, dans lequel le matériau est du métal ou du plastique.
  10. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que les parois de séparation et/ou de guidage (32, 32') peuvent être déplacées ensemble et/ou individuellement vues dans le sens périphérique de la vis sans fin (2) et peuvent être fixées dans des positions sélectionnées.
  11. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que les joints de glissement (36, 36') peuvent être déplacés ou ajustés ultérieurement dans le sens radial de la vis sans fin (2).
  12. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que le logement (3) présente au moins une ouverture fermée en mode de séchage, pouvant être libérée à des fins de nettoyage et d'entretien, que la vis sans fin (2) peut être remplacée et que la vis sans fin (2) peut être démontée et montée à travers l'au moins une ouverture.
  13. Séchoir selon la revendication 12, caractérisé en ce que l'ouverture peut être fermée par un capot (35) supérieur ou latéral, amovible ou pouvant être déplacé du logement (3).
  14. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de conditionnement gazeux est associé à ou monté en amont de l'au moins une entrée de gaz (30).
  15. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un filtre à poussières est associé à ou monté en aval de l'au moins une sortie de gaz (34).
  16. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un ventilateur soufflant est associé à ou monté en amont de l'au moins une entrée de gaz (30) et/ou qu'un ventilateur extracteur est associé à ou monté en aval de l'au moins une sortie de gaz (34).
  17. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif d'introduction de produit (4) étanchéifié de manière essentiellement étanche au gaz vers l'environnement est associé à une première extrémité (21) de la vis sans fin (2).
  18. Séchoir selon la revendication 17, caractérisé en ce que le dispositif d'introduction de produit (4) comprend un convoyeur oscillant pouvant être réglé dans sa puissance de transport ou une vis d'introduction pouvant être réglée dans sa puissance en tant que dispositif de dosage.
  19. Séchoir selon la revendication 17 ou 18, caractérisé en ce que le dispositif d'introduction de produit (4) comprend un tuyau de transport (40) débouchant de manière concentrique à la vis sans fin (2) dans sa première extrémité (21) et que la première extrémité (21) de la vis sans fin (2) est fermée par un disque annulaire élastique (41) entourant en l'étanchéifiant le tuyau de transport (40).
  20. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de sortie de produit (5) étanchéifié de manière essentiellement étanche au gaz vers l'environnement est associé à une seconde extrémité (22) de la vis sans fin (2).
  21. Séchoir selon la revendication 20, caractérisé en ce que le dispositif de sortie de produit (5) est réalisé avec un sas, notamment un sas à roue cellulaire.
  22. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que la vis sans fin (2) présente un essieu central (23) dépassant d'un ou des deux côtés de manière frontale ou un ou deux tourillons dépassant uniquement de manière frontale pour le logement de vis.
  23. Séchoir selon la revendication 22, caractérisé en ce que la vis sans fin est en outre logée dans la rigole (26) et/ou sur des roulements de palier (27).
  24. Séchoir selon la revendication 22 ou 23, caractérisé en ce que l'essieu (23) est un arbre fermé avec un diamètre externe qui est petit par rapport au diamètre externe de la vis sans fin (2).
  25. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que la vis sans fin (2) peut être entraînée en rotation au moyen d'au moins un moteur d'entraînement (24) par le biais d'un engrenage à roue dentée ou roue de friction ou courroie ou chaîne.
  26. Séchoir selon l'une quelconque des revendications précédentes, caractérisé en ce que le logement (3) est divisé en plusieurs régions de logement (3.1, 3.1', 3.2) séparées les unes des autres côté gaz vu dans le sens de transport (25) du produit de séchage (6), dans lequel un courant de gaz propre peut être guidé à travers chaque région de logement (3.1, 3.1', 3.2).
  27. Séchoir selon la revendication 26, caractérisé en ce qu'au moins une première région de logement (3.1, 3.1') forme une zone de séchage vue dans le sens de transport (25) du produit de séchage (6) qui peut être traversée par un courant de gaz de séchage chaud, et qu'au moins une seconde région de logement (3.2) forme une zone de refroidissement qui peut être traversée par un courant de gaz frais.
  28. Séchoir selon la revendication 1 et selon la revendication 14 et/ou 16, caractérisé en ce qu'un ou plusieurs capteurs de température et/ou d'humidité (37, 37') sont disposés dans la région d'amenée de gaz (31) et/ou dans la région d'évacuation de gaz (33), avec lesquels une température et/ou une humidité de gaz peut/peuvent être détectée(s) en mode de séchage, et que le(s) ventilateur(s) et/ou le(s) dispositif(s) de conditionnement gazeux et/ou une quantité d'introduction de produit de séchage et/ou la vitesse de rotation de la vis sans fin peut/peuvent être commandé(e)(s) ou régulé(e)(s) en fonction de valeurs de mesure détectées par le(s) capteur(s) (37, 37').
EP07722957.3A 2006-05-22 2007-02-28 Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir Not-in-force EP2024701B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610024144 DE102006024144A1 (de) 2006-05-22 2006-05-22 Trockner für schüttfähiges Trocknungsgut
PCT/EP2007/001704 WO2007134656A1 (fr) 2006-05-22 2007-02-28 Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir

Publications (2)

Publication Number Publication Date
EP2024701A1 EP2024701A1 (fr) 2009-02-18
EP2024701B1 true EP2024701B1 (fr) 2013-06-12

Family

ID=38222070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07722957.3A Not-in-force EP2024701B1 (fr) 2006-05-22 2007-02-28 Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir

Country Status (4)

Country Link
EP (1) EP2024701B1 (fr)
DE (1) DE102006024144A1 (fr)
DK (1) DK2024701T3 (fr)
WO (1) WO2007134656A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MA33876B1 (fr) * 2011-06-27 2013-01-02 Univ Sidi Mohamed Ben Abdellah Sechoir a lit fluidise a vis d'archimede
NO343722B1 (en) * 2016-02-19 2019-05-20 Float Biopro As System and process for drying loose bulk material, and a drying unit therefore
AU2019409874A1 (en) * 2018-12-20 2021-07-08 Pelleton Global Renewables Ltd. Pellet processing drum

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE461622A (fr) *
GB382890A (en) * 1932-05-06 1932-11-03 Duncan Stewart & Company Ltd Improvements in rotary drying machines
GB477279A (en) * 1936-06-20 1937-12-20 Kaloroil Burners Ltd Improvements in or relating to the drying of grass or the like
CH212600A (de) * 1939-01-19 1940-12-15 Jenny Heinrich Ing Dr Verfahren und Einrichtung zur künstlichen Trocknung von Pflanzen und andern Produkten.
CH229145A (de) * 1942-08-29 1943-10-15 Buehler Ag Geb Trommeltrockner mit durchbrochenem Mantel und Querbelüftung.
US3475832A (en) * 1967-08-04 1969-11-04 Process Equipment Eng Co Continuous fluid bed dryer
DE1919313C3 (de) * 1969-04-11 1975-05-07 Chemoprojekt Projektova, Inzenyrska A Konzultacni Organisace, Prag Vorrichtung zum Durchführen kontinuierlichen Fließbettprozesse
DE2143462B2 (de) * 1971-08-31 1973-09-27 Karl 6080 Gross-Gerau Kron Gerät zur kontinuierlichen Trocknung landwirtschaftlicher Erzeugnisse
GB1405740A (en) * 1974-07-19 1975-09-10 Mo Li Tang Rotary dryer
US4052797A (en) * 1976-04-02 1977-10-11 Raytheon Company Rotary drum plenum seal
GB2083189A (en) * 1980-08-23 1982-03-17 Dobson Park Eng Drying or toasting apparatus
JPS613986A (ja) * 1984-06-18 1986-01-09 株式会社大川原製作所 伝熱管内蔵型横型流動層乾燥機
FR2578964B1 (fr) 1985-03-12 1988-12-09 Quiri Cie Sa Usines Surgelateur ou secheur industriel a lit fluidise et a fort pouvoir de retention des fines
GB8517798D0 (en) * 1985-07-15 1985-08-21 Din Eng Ltd Reaction chamber conveyor
DE3902271A1 (de) * 1988-03-12 1989-09-21 Buehler Ag Geb Verfahren zum behandeln von schuettgut und vorrichtungen und anlage dazu
IT1251433B (it) * 1991-10-25 1995-05-09 Vomm Impianti & Processi Srl Macchina per la lavorazione di materiale in genere mediante centrifugazione e trattamento termico
ZA946711B (en) * 1993-09-02 1995-04-20 Riviana Foods Inc Apparatus and method for food products
AUPP117597A0 (en) * 1997-12-30 1998-01-29 Wallace, George Robert Agricultural crop drier
FI104444B (fi) * 1998-07-02 2000-01-31 Valmet Corp Menetelmä ja laite sellun kuivattamiseksi

Also Published As

Publication number Publication date
DE102006024144A1 (de) 2007-11-29
EP2024701A1 (fr) 2009-02-18
DK2024701T3 (da) 2013-09-08
WO2007134656A1 (fr) 2007-11-29

Similar Documents

Publication Publication Date Title
DE69215477T2 (de) Vorrichtung zur Trocknung von pulverförmigem oder körnigem Gut
EP1473533B1 (fr) Procédé et dispositif pour sécher en continu de matériaux, notamment de boues d'épuration
EP2326900B1 (fr) Procédé et dispositif de séchage de biomasse
CH631648A5 (de) Verfahren und vorrichtung zum kristallisieren von kunststoffgranulat.
DE2160962C3 (de) Trommeltrockner zum Trocknen von Schlamm
DE102013022092A1 (de) Trocknungsbehälter für Schüttgüter, insbesondere Kunststoffgranulat, sowie Verfahren zum Trocknen und/oder Kristallisieren von Schüttgut
EP2024701B1 (fr) Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir
EP0365851A1 (fr) Séchoir à tambour à position horizontale pour matériau granulé
DE68921669T2 (de) Vorrichtung zum Trocknen und Kristallisieren von Granulat.
EP0217263B1 (fr) Machine pour le traitement par la chaleur
EP1975536A2 (fr) Dispositif pour refroidir et/ou chauffer une matière en vrac
EP1319632A1 (fr) Procédé et dispositif pour le séchage de boues, en particulier de boues d'épuration
EP2608685B1 (fr) Dispositif pour le traitement du tabac
DE202013101746U1 (de) Trockner zum Trocknen von Trocknungsgut mittels warmer Trocknungsluft
EP1987303B1 (fr) Sechoir a lit fluidise
EP0197171B1 (fr) Séchoir à basse température pour une matière fibreuse pressurée
EP3702710B1 (fr) Récipient de séchage et procédé de séchage de granulés en matière plastique
WO2017182190A1 (fr) Dispositif et procédé servant à introduire de l'oxygène dans un récipient de matière solide humide à tambour rotatif
EP1343582B1 (fr) Dispositif de purification et / ou de decontamination de polyester
DE202010000548U1 (de) Trocknungsvorrichtung für loses Fördergut
EP3051241B1 (fr) Dispositif d'alimentation de produits pateux sur une bande
DE1925397A1 (de) Einrichtung zur Waerme-,Kaelte- und/oder Stoffbehandlung koernigen,rieselfaehigen Gutes
EP1000306A1 (fr) Dispositif de sechage a vide
EP2395306A2 (fr) Procédé et dispositif de séchage de fibres, notamment de copeaux de bois
EP0084820B1 (fr) Procédé pour le séchage des copeaux de betterave à sucre et dispositif pour l'application du procédé

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

17P Request for examination filed

Effective date: 20081219

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17Q First examination report despatched

Effective date: 20101214

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 616846

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: LUCHS AND PARTNER AG PATENTANWAELTE, CH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007011888

Country of ref document: DE

Effective date: 20130808

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130923

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130913

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130912

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

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

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

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131014

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131012

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

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

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

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

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

Ref country code: DK

Payment date: 20140211

Year of fee payment: 8

Ref country code: CH

Payment date: 20140212

Year of fee payment: 8

Ref country code: NL

Payment date: 20140208

Year of fee payment: 8

26N No opposition filed

Effective date: 20140313

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

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

Ref country code: AT

Payment date: 20140211

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007011888

Country of ref document: DE

Effective date: 20140313

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

Ref country code: DE

Payment date: 20140409

Year of fee payment: 8

BERE Be: lapsed

Owner name: IJZERLO HOLDING B.V.

Effective date: 20140228

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140228

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

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

Effective date: 20140228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20141031

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: FR

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

Effective date: 20140228

Ref country code: GB

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

Effective date: 20140228

Ref country code: BE

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

Effective date: 20140228

Ref country code: IE

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

Effective date: 20140228

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007011888

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20150901

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20150228

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

Ref country code: NL

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

Effective date: 20150901

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 616846

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150228

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

Ref country code: CH

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

Effective date: 20150228

Ref country code: LI

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

Effective date: 20150228

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

Ref country code: AT

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

Effective date: 20150228

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

Ref country code: DK

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

Effective date: 20150228

Ref country code: DE

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

Effective date: 20150901

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20070228

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130612