EP1258693A1 - Procédé et dispositif pour le séchage de bois de sciage - Google Patents

Procédé et dispositif pour le séchage de bois de sciage Download PDF

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Publication number
EP1258693A1
EP1258693A1 EP02010640A EP02010640A EP1258693A1 EP 1258693 A1 EP1258693 A1 EP 1258693A1 EP 02010640 A EP02010640 A EP 02010640A EP 02010640 A EP02010640 A EP 02010640A EP 1258693 A1 EP1258693 A1 EP 1258693A1
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EP
European Patent Office
Prior art keywords
drying
stack
sealing device
drying chamber
sawn timber
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
EP02010640A
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German (de)
English (en)
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EP1258693B1 (fr
Inventor
Reinhard Dipl.-Ing. Brunner
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/063—Movable containers or receptacles, e.g. carts, trolleys, pallet-boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow
    • F26B21/028—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow by air valves, movable baffles or nozzle arrangements

Definitions

  • the invention relates to a method and an apparatus for drying stacked Lumber or other plate or rod-shaped goods in a drying chamber Longitudinal loading by means of a rail wagon or similar means of transport, with convective heating and with fans for circulating a gaseous drying agent transversely to the longitudinal direction the drying chamber.
  • the aim of the invention is a quick, inexpensive drying in compliance with the required quality characteristics, e.g. mechanical as low as possible Tensions, discoloration or final moisture spreading in the dry material.
  • the dry goods are usually placed on rail wagons retracted and extended through a gate at the front.
  • Other means of transport e.g. Sledges, trolleys on rollers or pneumatic tires
  • the dry material, especially lumber is outside the drying chamber in the form of Stacked packages pre-stacked and for loading e.g. with the help of a forklift Track wagons set.
  • Underlaid squares serve as the basis for every stack package, to keep space for the insertion and removal of the forks.
  • squared timbers oriented across the board length, e.g. Corresponding aluminum hollow profiles are also used.
  • each stacking package is separated from one another by stacking strips separated to allow the passage of the desiccant across the boards in the chamber enable.
  • the usual dimensions of a package are 1 to 2 m in width and 1 to 1.5m in height; the length is given by the boards.
  • Two or more packages, on the track wagons strung together and / or placed one above the other form a stack row, which is moved into the chamber as a whole.
  • the desiccant serves as a carrier of the thermal energy, which is required for the evaporation of the moisture contained in the dry material becomes.
  • the desiccant is heated on a heating device and releases the absorbed Amount of heat from the stack when it passes through the wood.
  • the flow required for this will generated by fans.
  • the fans are above a false ceiling or better to be installed on a vertical plane next to a row of stacks or between two rows. The exact arrangement depends on the requirements of the chamber and flow geometry. In practice, the arrangement in a horizontal row has proven itself; with increased If there is a need for capacity, several fan rows can be arranged one above the other.
  • the pumped gas homogeneously penetrates a stacking area, is on a side wall deflected by the chamber, flows back through other stacking areas to the opposite one Wall and returns to the first stacking area.
  • the separation of the opposite Flow is given through the channels that run vertically through board layers, are limited horizontally by stacking strips or squared timbers.
  • the desiccant flow also looks for other ways with undesirable ones "Shorts". If e.g. the boards are not placed close together or can be laid (for "untrimmed goods", these are boards with bark and / or sloping Edges), some of the desiccant can already reverse within the stack without to reach the wall.
  • the invention is based on the special task of necessary seals and covers to avoid unwanted routes, Short circuits and inhomogeneities in the desiccant flow to simple, inexpensive in a practical way.
  • the between the ends of the nozzle sheets emanating from the fan level and the Seals required on the stack side can be used without risk of damage, when outside the drying chamber at the appropriate height on the sides of the on rail wagons resting row of stacks pressed and fixed appropriately. Those facing away from the stack Sides of the seals then slide on the straight and during loading smooth ends along the nozzle plates or keep a small distance from them.
  • the Attaching and removing the seals is easily possible because the loaded rail wagons are freely accessible from all sides outside the chamber.
  • the seals can be easily attached directly to the wood pile; the required Dimensional accuracy when loading can hardly be achieved in this way. It is better to use a sealing device to use, which can be positioned exactly relative to the track wagon.
  • This sealing device is preferably designed as a frame that consists of horizontal brackets and vertical connections is assembled, the elements depending on the material are screwed, glued or welded together.
  • Aluminum is a suitable material especially good because it is light, corrosion-resistant and easy to work with. Therefore be preferably aluminum hollow tubes as vertical connections, aluminum profiles as horizontal brackets used. These profiles contain a recess in the longitudinal direction on the stack side a sealing strip made of elastic material is pressed in and there either by barbs or adhesive is held.
  • the rack is usually the length and height of a row of piles; if the length is too long It can also consist of parts, so that it can be effortlessly used by the operating personnel machine help can be moved.
  • the frame is set up chamber-specifically because the horizontal brackets in height with the nozzle plates fixed in the drying chamber have to correspond.
  • Stanchions are preferably used to attach the frame to the rail wagon, e.g. in Form of aluminum hollow tubes.
  • the stanchions are in on both sides of the stack row corresponding recesses at the ends of the bottom, flush with both sides of the loading area overlying square timbers and with a simple cross connection at the upper end held together.
  • the squares (which are also called when they are made from other materials such as Aluminum are made) by the weight of the overlying Stacked packages held in place on the loading area.
  • the frame is attached from the side to the stanchions, such as hooks or angle plates a depends.
  • the sealing strips press against the stack side and thus separate stack areas above and below with respect to the desiccant flow.
  • a correspondingly flexible material is used for the sealing strips, into which the stanchions can be pressed in completely.
  • Stanchions as fasteners for the sealing device have an additional advantage: Because they fit snugly on both sides of the stack, they prevent them from drying Swing the boards out to the side. This is especially important for vacuum dryers because there the width of the gates is very limited due to the statics.
  • Leave covers or covers for the critical areas between the stack packages integrate easily into the frame of the sealing device.
  • two opposite Grooves can easily be used to cover the package or board ends and can be moved horizontally as desired.
  • These panels can be made of sheet metal or Plastic panels of different widths exist, depending on current requirements. she can also be broken if the covering effect is to be less.
  • the vertical panels can be moved in the longitudinal direction up to the rear wall and that The gate of the drying chamber is sufficient so that it dries out too quickly at the ends of the stack row is avoided without additional device.
  • Horizontal covers can be easily covered in to cover the squared timber areas Position the stack-side grooves of the vertical connections of the frame described vertically and fix, for example with the help of spring clips.
  • Fig. 1 shows a drying chamber 1 with fan 2 and symmetrical nozzle plates 3. If several fans are used, these are to be considered in a row in the longitudinal direction of the drying chamber, that is to say perpendicular to the paper plane, at the same height; the nozzle plates extend accordingly over the length of the chamber.
  • a track wagon 5 with wheels 6 rests on tracks 4 which are laid on the floor.
  • the track wagons each carry three stacking packages 7 one above the other, which each form a stacking row with further (not visible) packages in the longitudinal direction of the drying chamber.
  • Each stacking package 7 contains several layers of boards 8 lying in parallel, separated by stacking strips 9 between two layers, and rests on squared timbers 10 .
  • the frame 13 to the side of the stanchions 11 is shown enlarged in FIG. 2. It is composed of vertical connections 15 and horizontal brackets 14 and suspended from mounting brackets 16 .
  • the horizontal brackets 14 at the interfaces 18 are provided with sealing strips 17 , the ends of which are in contact with the stack.
  • Vertical screens 19 are guided in opposite grooves of the horizontal brackets 14 .
  • a vertically displaceable horizontal diaphragm 20 (indicated by a double arrow) is located at the level of the squared timber 10 .
  • Fig. 3 an arrangement of three vertical panels 19 is shown side by side.
  • the circular cutout gives a clear view of the ends of two adjacent stack packs 7 located behind.
  • the stack-side groove 21 of a vertical connection 15 is made visible.
  • the horizontal diaphragm 20 is guided in this groove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP02010640A 2001-05-14 2002-05-11 Procédé et dispositif pour le séchage de bois de sciage Expired - Lifetime EP1258693B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10124555A DE10124555C1 (de) 2001-05-14 2001-05-14 Verfahren und Vorrichtung zum Trocknen von Schnittholz
DE10124555 2001-05-14

Publications (2)

Publication Number Publication Date
EP1258693A1 true EP1258693A1 (fr) 2002-11-20
EP1258693B1 EP1258693B1 (fr) 2007-07-11

Family

ID=7685475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010640A Expired - Lifetime EP1258693B1 (fr) 2001-05-14 2002-05-11 Procédé et dispositif pour le séchage de bois de sciage

Country Status (3)

Country Link
EP (1) EP1258693B1 (fr)
AT (1) ATE366902T1 (fr)
DE (2) DE10124555C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966389A1 (fr) * 2014-07-07 2016-01-13 Hildebrand Holztechnik GmbH Dispositif de sechage
EP3190370A1 (fr) * 2016-01-05 2017-07-12 Hildebrand Holztechnik GmbH Dispositif de séchage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113231280A (zh) * 2021-03-31 2021-08-10 重庆展成家俱制造有限公司 一种家具板材的涂胶烘烤装置
DE102022130433B4 (de) 2022-05-09 2024-09-05 Reinhard Brunner Kanal-Trocknungsvorrichtung

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1571226A (en) * 1920-01-19 1926-02-02 Barducci Pilade Drying plant
US2050226A (en) * 1932-02-15 1936-08-04 Nat Dry Kiln Company Apparatus for drying lumber
US2050597A (en) * 1934-02-07 1936-08-11 James M Thorp Dehydrator
US2055834A (en) * 1931-06-01 1936-09-29 Moore Dry Kiln Company Dry kiln
FR993971A (fr) * 1944-11-29 1951-11-09 Perfectionnements aux séchoirs à chariots
GB738345A (en) * 1953-06-25 1955-10-12 G F Wells Ltd Improvements in and relating to drying kilns
US2834120A (en) * 1954-05-24 1958-05-13 Greenhood Elisha Russell Lumber curing process
GB849075A (en) * 1959-01-29 1960-09-21 Vanicek Viktor Improvements in or relating to drying chambers, particularly for wood
GB1331229A (en) * 1969-12-10 1973-09-26 Wells Ltd G F Drying kilns
DE3941134A1 (de) * 1989-12-13 1991-06-20 Wagner Max Novokeram Verfahren und vorrichtung zum trocknen von guetern, insbesondere keramischen formlingen
DE4228698A1 (de) * 1991-12-02 1993-06-03 Neumann Rodolfo J Vorrichtung und verfahren zur kondensationstrocknung
DE19801162C1 (de) 1998-01-15 1999-09-23 Reinhard Brunner Vorrichtung zum Trocknen von gestapeltem Schnittholz

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1571226A (en) * 1920-01-19 1926-02-02 Barducci Pilade Drying plant
US2055834A (en) * 1931-06-01 1936-09-29 Moore Dry Kiln Company Dry kiln
US2050226A (en) * 1932-02-15 1936-08-04 Nat Dry Kiln Company Apparatus for drying lumber
US2050597A (en) * 1934-02-07 1936-08-11 James M Thorp Dehydrator
FR993971A (fr) * 1944-11-29 1951-11-09 Perfectionnements aux séchoirs à chariots
GB738345A (en) * 1953-06-25 1955-10-12 G F Wells Ltd Improvements in and relating to drying kilns
US2834120A (en) * 1954-05-24 1958-05-13 Greenhood Elisha Russell Lumber curing process
GB849075A (en) * 1959-01-29 1960-09-21 Vanicek Viktor Improvements in or relating to drying chambers, particularly for wood
GB1331229A (en) * 1969-12-10 1973-09-26 Wells Ltd G F Drying kilns
DE3941134A1 (de) * 1989-12-13 1991-06-20 Wagner Max Novokeram Verfahren und vorrichtung zum trocknen von guetern, insbesondere keramischen formlingen
DE4228698A1 (de) * 1991-12-02 1993-06-03 Neumann Rodolfo J Vorrichtung und verfahren zur kondensationstrocknung
DE19801162C1 (de) 1998-01-15 1999-09-23 Reinhard Brunner Vorrichtung zum Trocknen von gestapeltem Schnittholz

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966389A1 (fr) * 2014-07-07 2016-01-13 Hildebrand Holztechnik GmbH Dispositif de sechage
EP3190370A1 (fr) * 2016-01-05 2017-07-12 Hildebrand Holztechnik GmbH Dispositif de séchage

Also Published As

Publication number Publication date
DE50210436D1 (de) 2007-08-23
ATE366902T1 (de) 2007-08-15
EP1258693B1 (fr) 2007-07-11
DE10124555C1 (de) 2002-11-07

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