EP2024701A1 - 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

Info

Publication number
EP2024701A1
EP2024701A1 EP07722957A EP07722957A EP2024701A1 EP 2024701 A1 EP2024701 A1 EP 2024701A1 EP 07722957 A EP07722957 A EP 07722957A EP 07722957 A EP07722957 A EP 07722957A EP 2024701 A1 EP2024701 A1 EP 2024701A1
Authority
EP
European Patent Office
Prior art keywords
gas
screw conveyor
dryer according
dryer
conveyor
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.)
Granted
Application number
EP07722957A
Other languages
German (de)
English (en)
Other versions
EP2024701B1 (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

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

  • Dryer for pourable drying material and method for operating a dryer
  • 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 Coat is surrounded.
  • the invention relates to a method for operating a dryer.
  • a method and an apparatus for drying mushy substances are known.
  • This method is used to dry fibrous pulp, such as chemical pulp, mechanical pulp, thermo-mechanical pulp, TMP, deinked pulp or fibrous slurry, ie, pulp-forming materials.
  • 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. In the dryer, the pulp passes through a gap-like drying space, which is defined by a first and a second cyclic drying chamber.
  • the pulp forming the material to be dried is here of mushy consistency and fills the gap space 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 known from CH-A-485 993.
  • This dryer has a plurality of mutually parallel, horizontally extending augers, each auger lies in a trough-shaped tray. The lower area of each trough is rounded off to the outer diameter of the auger and provided with openings.
  • About one or more input devices with dosing the material to be dried is fed to the screw conveyor. By rotating the screw conveyors, the drying material to be dried is conveyed through the dryer.
  • a gas is passed from the outside through the perforations in the lower region of the trough-shaped troughs, through which the drying material flows and thereby dries it.
  • Another dryer is known from EP-A-0 165 916.
  • 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, which avoids the disadvantages mentioned above and provides a reliable function with high efficiency in a simple construction and in which an undesirable entrainment of parts of the material to be dried with the the gas stream flowing through the material to be dried is avoided.
  • a method for operating a dryer should be specified, with the good and reproducible drying results are achieved with high efficiency.
  • the pourable drying material only partially fills the cross section of the screw conveyor within the shell
  • the dryer according to the invention a simple construction is advantageously achieved, because it does not require vulnerable rotary unions for a heat transfer medium.
  • the casing surrounding the screw and the only partial filling of the screw conveyor with the pourable Trocknungsgut ensure that the drying material within the screw conveyor for forming the fluidized bed sufficiently large range of motion, in particular upwards, and that no entrainment of the drying material occurs, even if the material to be dried is light and / or the gas used for drying flows through the material to be dried at high speed.
  • relatively high gas temperatures are possible because the fluidized bed leads to a high evaporation of moisture from the material to be dried and thus to a cooling of the material to be dried. This allows a very high efficiency of the dryer, while at the same time the risk of entrainment of parts of the material to be dried is avoided with the gas stream.
  • 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 is used here, the drying material during the Dry to move without promoting it, which can be favorable for the drying process, in particular for a uniform drying of all parts of the drying material.
  • 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 jacket is attached to the screw conveyor and rotatable with this.
  • any relative movement and any friction caused thereby between the screw conveyor on the one hand and the jacket on the other hand completely avoided. Unwanted, leading to damage of the drying material leading grinding effects can not occur.
  • the material to be dried is transported particularly gently by the conveyor screw, which is surrounded by the co-rotating mantle, which also makes the dryer particularly sensitive to drying goods, such as e.g. Seeds, suitable.
  • 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.
  • a non-rotating gas guide element in the form of a perforated channel, which is adapted to the casing, is arranged.
  • This 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.
  • the channel is provided with holes spaced apart 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 fits and engages well with the outer circumference of the conveyor screw or of the surrounding jacket.
  • the channel is preferably formed from a plate or sheet of plastic or a metal sheet.
  • 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 groove rests at its circumferentially spaced apart from the conveyor screw longitudinal edges by means of sliding seals on the outer circumference of the shell of the screw conveyor.
  • the material of the gutter itself can also form the seals.
  • the screw conveyor with the jacket in a substantially gas-tight housing with at least one gas inlet and at least one Gas outlet is arranged and that the housing is divided in its interior into a connected to the gas inlet Gaszu111 Avenue and connected to the gas outlet Gasab2020 Avenue, wherein the gas supply and the Gasab2020 Scheme are fluidly interconnected only through the screw conveyor.
  • the screw conveyor with the shell is completely encapsulated, so that an accurate and targeted gas flow without gas losses is made possible and at the same time a threat to the environment is excluded.
  • a concrete development provides that the gas supply and the Gasab211 Scheme are radially separated from each other outside the auger by two oppositely arranged in the housing separation and / or guide walls.
  • the separating and / or guide walls suitably extend as close as possible to the outer circumference of the screw conveyor or the surrounding jacket on its edge facing the conveyor screw.
  • the gas in a suitable manner, preferably in cross-flow, through the Trocknungsgut feasible.
  • separation and / or guide walls is preferably provided to adapt to different drying properties that they are seen in the circumferential direction of the screw conveyor together and / or individually adjustable and fixed in selected positions.
  • a particularly gas-tight connection of the separation and / or baffles to the outer periphery of the shell is achieved in that the separation and / or baffles preferably abut each at its the screw conveyor longitudinal edge by means of sliding seals on the outer circumference of the shell of the screw conveyor.
  • 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.
  • one longitudinal edge of the channel and the adjacent longitudinal edge of a guide and a partition wall and the other longitudinal edge of the channel and the adjacent longitudinal edge of the other guide and partition are arranged directly adjacent to each other or connected to each other and are each provided with a common sliding seal.
  • 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 warehousing be carried out without problems.
  • 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.
  • 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. To discharge this dust from the dryer into the environment it is expedient to avoid 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 input device.
  • 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.
  • 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.
  • 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.
  • 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 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.
  • the screw conveyor can be driven in rotation by means of at least one drive motor via a gearwheel or friction wheel or belt or chain drive.
  • the screw conveyor can be reliably rotated, with a Speed setting of the motor, the speed of the screw conveyor is set to appropriate values and thus the capacity of the screw conveyor and the throughput of the dryer are set in a 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 can be flowed through by a cool gas stream.
  • the drying material can be dried in the at least one first housing region, wherein the drying material is necessarily heated when using the warm drying gas stream.
  • 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.
  • the screw conveyor is arranged horizontally. In this orientation results in a reliable and uniform delivery of the material to be dried by the screw conveyor, the screw conveyor at the same time ensures a favorable forced mixing and circulation of the material to be dried. Disturbances in the Trocknungsgutieri, as may occur, for example, in known vertical driers with gravity conveyance of the material to be dried, are avoided here safe.
  • the screw conveyor is arranged inclined to the horizontal, wherein preferably the angle to the horizontal is at most 45 °. Even in a limited inclined arrangement is still a reliable and uniform promotion of the material to be dried guaranteed by the screw conveyor.
  • the good dispensing device is expediently higher than the goods receiving device, which, for example, the forwarding of the drying material to googleverar- preparing facilities or the immediate packaging of the material to be dried easier.
  • 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 desired amount of drying material 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 process 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 is conceivable in the device.
  • the subject matter of the application is a method for operating a dryer for pourable material to be dried, wherein the material to be dried passes through a conveying path with at least one rotatable conveying screw in which a gas flows through the material to be dried, and in which the conveying path forming at least one rotatable screw conveyor is surrounded over its entire circumference with a gas-permeable and well-impermeable jacket.
  • the pourable material to be dried is fed to the conveyor screw in an amount such that it only partially fills the cross-section of the conveyor screw inside the casing
  • a dryer of the type described above with high efficiency and low energy consumption can be operated without loss of material to be dried and with gentle treatment of the material to be dried.
  • 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.
  • a preferred embodiment of the method provides that during operation of the dryer, the bulk material to be dried is fed to the conveyor screw in an amount such that it only increases the cross section of the conveyor screw 30 to 60%, preferably to 40 to 50%, fills. This ensures in any case sure that the formation of the desired fluidized bed in the drying material can be done without hindrance.
  • FIG. 1 shows a dryer in a schematic side view, partly in longitudinal section
  • Figure 2 shows the dryer of Figure 1 in a cross section through a first portion of the dryer
  • FIG. 3 shows the dryer in a partial cross section through its end region
  • FIG. 4 shows the dryer in a second embodiment in a cross section through a first section of the dryer, with closed housing, and
  • FIG. 5 shows the dryer of Figure 4 in the same representation, now with the housing open.
  • 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.
  • a left, first end region 21 of the screw conveyor 2 projects slightly beyond the front end of the housing 3. 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.
  • the material to be dried is forcibly conveyed through the dryer 1 in the conveying direction 25.
  • a gas for example air
  • the gas flows through one or more GaszuWORKS 29 are each guided so that they flow through the screw conveyor 2 with the drying material therein substantially in cross-flow, wherein moisture contained in the Trocknungsgut is entrained by 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.
  • a heated gas such as warm air
  • 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
  • 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 Marie 5 are regulated as needed.
  • FIG. 2 shows the dryer 1 in cross-section through the first housing region 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, according 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 the 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.
  • the temperature and / or the humidity of the gas in the gas supply region 31 can be measured via sensors 37, 37 'before flowing through the material to be dried 6 and in the gas discharge region 33 after passing through the material to be dried and the control not specifically shown - And / or control device to be supplied.
  • Figure 3 shows the right in Figure 1 end portion 22 of the screw conveyor 2 with the arranged there Good output device 5.
  • FIG. 2 shows the upper part of Figure 3 seen in the conveying direction rear end of the screw conveyor 2 with the central axis 23 is 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 embodiment 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, according 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 the 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.
  • 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.
  • the jacket 20 sufficient space for the aufströmbelnde in the fluidized bed and partially contrasting with the inner surface of the shell 20 drying material 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 gas flow flows upwards through the casing 20 into the gas discharge region 33 and then further to the side into the gas outlet 34 arranged laterally.
  • 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 an open position pivoted by about 90 °. 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)

Abstract

La présente invention concerne un séchoir (1) pour produit de séchage en vrac (6), muni d'une voie de transport que le produit de séchage (6) doit parcourir, avec au moins une vis sans fin pivotante (2) dans laquelle le produit de séchage (6) peut être traversé par un gaz, au moins une vis sans fin pivotante (2) formant la voie de transport étant entourée sur tout son périmètre d'une gaine (20) perméable au gaz et imperméable au produit. Le nouveau séchoir (1) est caractérisé en ce que, pendant le fonctionnement du séchoir (1), le produit de séchage en vrac (6) ne remplit que partiellement la section transversale de la vis sans fin (2) à l'intérieur de la gaine (20), en ce que le gaz situé dans une zone inférieure de la vis sans fin (2) peut être introduit par l'intermédiaire de la gaine à l'intérieur de la vis sans fin (2) par la formation d'un lit fluidisé dans le produit de séchage (6), et en ce que le gaz, après avoir traversé le produit de séchage (6) formant le lit fluidisé dans une zone supérieure de la vis sans fin (2), peut être évacué par la gaine de cette vis (20). L'invention concerne en outre un procédé d'exploitation d'un séchoir (1).
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 true EP2024701A1 (fr) 2009-02-18
EP2024701B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3417222A4 (fr) * 2016-02-19 2019-07-24 Float Biopro AS Système et procédé de séchage de matériau en vrac

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
KR20210134893A (ko) * 2018-12-20 2021-11-11 펠레톤 글로벌 리뉴어블즈 리미티드 펠릿 가공 드럼
CN117084290B (zh) * 2023-09-01 2025-09-30 广东省农业科学院蚕业与农产品加工研究所 一种螺旋盘带式鱼干低温干燥装置

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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007134656A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3417222A4 (fr) * 2016-02-19 2019-07-24 Float Biopro AS Système et procédé de séchage de matériau en vrac
US10753684B2 (en) 2016-02-19 2020-08-25 Float Biopro As System and process for drying loose bulk material

Also Published As

Publication number Publication date
EP2024701B1 (fr) 2013-06-12
DK2024701T3 (da) 2013-09-08
DE102006024144A1 (de) 2007-11-29
WO2007134656A1 (fr) 2007-11-29

Similar Documents

Publication Publication Date Title
DE69215477T2 (de) Vorrichtung zur Trocknung von pulverförmigem oder körnigem Gut
EP0365851B1 (fr) Séchoir à tambour à position horizontale pour matériau granulé
EP2326900B1 (fr) Procédé et dispositif de séchage de biomasse
DE2100248C3 (de) Einrichtung zur Wärme-, Kälte,- und/oder Stoffbehandlung körnigen, rieselfähigen Gutes
EP2024701B1 (fr) Séchoir pour produit de séchage en vrac et procédé d'exploitation d'un séchoir
DE102013022092A1 (de) Trocknungsbehälter für Schüttgüter, insbesondere Kunststoffgranulat, sowie Verfahren zum Trocknen und/oder Kristallisieren von Schüttgut
EP1309828B1 (fr) Procede de sechage de matieres pateuses
EP0217263B1 (fr) Machine pour le traitement par la chaleur
EP0939677B1 (fr) Centrifugeuse a filtre a retournement
EP1319632A1 (fr) Procédé et dispositif pour le séchage de boues, en particulier de boues d'épuration
EP2608685B1 (fr) Dispositif pour le traitement du tabac
EP1987303B1 (fr) Sechoir a lit fluidise
HUE034026T2 (en) Drying equipment
DE102014212196B4 (de) Vorrichtung zur aeroben mikrobiologischen Erwärmung schüttfähiger feuchter organischer Feststoffe
WO2010094476A2 (fr) Séchoir pour le traitement des déchets de jardin
DE212009000161U1 (de) Anlage für die kontinuierliche Trocknung von Partikelmaterial
EP1343582B1 (fr) Dispositif de purification et / ou de decontamination de polyester
DE1925397A1 (de) Einrichtung zur Waerme-,Kaelte- und/oder Stoffbehandlung koernigen,rieselfaehigen Gutes
WO1999008058A1 (fr) Dispositif de sechage a vide
EP0729440B1 (fr) Installation de sechage de boue
WO2019048411A1 (fr) Conditionnement du tabac
DE19542301B4 (de) Verfahren und Einrichtung zum Trocknen von schlammartigem Trockengut, insbesondere Klärschlamm
DE29516324U1 (de) Einrichtung zum Zerkleinern und Trocknen von Naßgut mittels eines perforierten Hohlwellensystems
DE2436139B2 (de) Konditioniefvorrichtung für Tabak
WO2015070904A1 (fr) Dispositif permettant de sécher un produit

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