EP0601986B1 - Chambre de soufflage - Google Patents

Chambre de soufflage Download PDF

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Publication number
EP0601986B1
EP0601986B1 EP93850224A EP93850224A EP0601986B1 EP 0601986 B1 EP0601986 B1 EP 0601986B1 EP 93850224 A EP93850224 A EP 93850224A EP 93850224 A EP93850224 A EP 93850224A EP 0601986 B1 EP0601986 B1 EP 0601986B1
Authority
EP
European Patent Office
Prior art keywords
wind chamber
belt
conveyor
ceiling
scraper
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.)
Revoked
Application number
EP93850224A
Other languages
German (de)
English (en)
Other versions
EP0601986A1 (fr
Inventor
Aarne Laatikainen
Ari Hemmilä
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.)
Metso Paper Valkeakoski Oy
Original Assignee
Sunds Defibrator Loviisa Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8536354&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0601986(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sunds Defibrator Loviisa Oy filed Critical Sunds Defibrator Loviisa Oy
Publication of EP0601986A1 publication Critical patent/EP0601986A1/fr
Application granted granted Critical
Publication of EP0601986B1 publication Critical patent/EP0601986B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres

Definitions

  • the present invention relates to a wind chamber used in particle board production on the spreading machine according to the preamble of main claim 1.
  • a main phase of the chipboard manufacturing process is the formation of the blank or the so-called spreading.
  • Spreading is done with special spreading machines. With these, a mixture of chips and binders is spread out on a grit belt conveyor to form a uniform, continuous carpet.
  • a typical spreading machine consists of so-called bunkers, floor conveyor, leveling brushes, unloading and distribution devices and a wind chamber.
  • the present invention thus relates to a wind chamber, which consists of a space delimited on the underside of a grit conveyor belt, on the sides of side walls, at the ends of end faces and on the top of a ceiling, in which the chips falling onto the distribution devices with the aid is carried on by air.
  • the air is introduced into the wind chamber through one end wall and removed through the opposite end wall.
  • a problem with the previously known wind chambers is that dust adheres to the ceiling of the wind chamber, from where it from time to time becomes uncontrollable Falls on the surface of the chipboard to be scattered, for example as a result of sufficient growth of the dust layer or accidental vibrations or the like.
  • the piles of dust that have fallen from the ceiling form clearly visible spots on the plate surface that spoil the surface, thereby lowering the quality level.
  • the invention has for its object to provide a wind chamber in which the problems outlined above are avoided. It is characteristic of the invention that the ceiling of the wind chamber is formed from a belt conveyor part.
  • the belt conveyor part is the return side of the floor belt conveyor of the grit bunker.
  • a scraper is attached in the wind chamber in order to remove the dust adhering to the belt conveyor part on the side of the wind chamber.
  • the wind chamber ceiling consists of a moving belt
  • the dust adhering to the belt is conveyed by the belt to the front wall, where the dust is removed from the belt in a controllable manner with the scraper and is conveyed out of the wind chamber by a conveyor, for example a spiral conveyor.
  • a conveyor for example a spiral conveyor.
  • spreading is carried out with special spreading machines.
  • 1 shows a spreading machine from the prior art.
  • a mixture 2 of chips and binders is spread out to form a uniform, continuous carpet 3 on the spreader belt conveyor 4 arranged in the lower part of the spreader and moving in the direction of the arrow.
  • the spreader typically consists of bunker 5, floor conveyor 6 moving in the direction of the arrow, distributor conveyor 1, compensating brushes 7, unloading and distributing devices 8 and wind chamber 9.
  • the wind chamber 9 is a space delimited by grit conveyor belt 4, side walls 10, end faces 11, 12 and ceiling 13, in which the chips falling on the distribution devices 8 are conveyed further by means of air.
  • the air is guided through the one end wall 11 in the manner shown by arrows into the wind chamber and removed through the opposite end wall 12 in the way also shown by arrows.
  • the finer chip particles fly furthest in the wind chamber and the coarsest particles become little of the air promoted.
  • a desired particle board structure is created, in which the surface of the plate is formed from an almost dust-like chip distribution and in which the average size of the chips increases towards the center of the plate.
  • the known, provided with stationary ceiling 13 wind chamber according to Fig. 1 has the disadvantage that dust accumulates on the ceiling and falls from time to time in an uncontrolled manner on the surface of the chipboard.
  • FIG. 2 shows a scattering machine which is equipped with a wind chamber according to the invention. Except for the construction of the wind chamber 9, the machine is the same as in FIG. 1, which is why only the wind chamber construction is explained with reference to FIG. 2.
  • the chamber ceiling is formed by the movable belt conveyor part 14, as which the return side of the floor belt conveyor 6 of the grit bunker is preferably used.
  • the dust adhering to the belt reaches the end wall 12 where the scraper 15 is attached.
  • the scraper 15 is e.g. fastened to the end wall 12 and its task is to scrape off the dust adhering to the belt 14 from the belt.
  • the dust falls into the trough 17, from which it is transported away by the spiral conveyor 16.
  • the scraper 15, the spiral conveyor 16 and the channel 17 preferably extend over the entire width of the belt 14 or at least over the width of the chipboard to be produced.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Catching Or Destruction (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Coating Apparatus (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Claims (4)

  1. Chambre de soufflage (9) utilisée dans la fabrication de panneaux d'agglomérés dans une machine à répandre, chambre qui est limitée, sur le dessous, par un tapis roulant (3) pour la matière à répandre, sur les côtés par des parois latérales (10), aux extrémités par des faces frontales (11,12) et sur le dessus par un plafond, caractérisée en ce que le plafond de la chambre de soufflage (9) est formé par la partie (14) d'un transporteur à bande.
  2. Chambre de soufflage selon la revendication 1, caractérisée en ce que la partie du transporteur à bande est le côté de retour (14) du transporteur à bande (6) du plancher de la réserve (5) de matière à répandre.
  3. Chambre de soufflage selon les revendications 1 et 2, caractérisée en ce qu'un racloir (15) est prévu dans la chambre de soufflage pour éliminer la poussière adhérant sur la partie (14) du transporteur à bande du côté de la chambre de soufflage (9).
  4. Chambre de soufflage selon la revendication 3, caractérisée en ce qu'un transporteur en spirale (16) agencé dans une goulotte (17) est prévu sur le racloir, sur le dessous de celui-ci, pour éliminer la poussière détachée de la partie (14) du transporteur à bande par le racloir (15), de la chambre de soufflage.
EP93850224A 1992-12-08 1993-12-02 Chambre de soufflage Revoked EP0601986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI925575A FI97113C (fi) 1992-12-08 1992-12-08 Tuulikammio
FI925575 1992-12-08

Publications (2)

Publication Number Publication Date
EP0601986A1 EP0601986A1 (fr) 1994-06-15
EP0601986B1 true EP0601986B1 (fr) 1996-01-03

Family

ID=8536354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93850224A Revoked EP0601986B1 (fr) 1992-12-08 1993-12-02 Chambre de soufflage

Country Status (5)

Country Link
EP (1) EP0601986B1 (fr)
AT (1) ATE132419T1 (fr)
DE (1) DE59301329D1 (fr)
ES (1) ES2083268T3 (fr)
FI (1) FI97113C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857498C1 (de) * 1998-12-14 2000-06-15 Siempelkamp Gmbh & Co Walzensiebmaschine und deren Verwendung
DE102020005686B4 (de) 2020-09-17 2022-05-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh Windstreuvorrichtung
DE102020005687B4 (de) 2020-09-17 2022-03-24 Siempelkamp Maschinen- Und Anlagenbau Gmbh Windstreuvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801243A (en) * 1972-05-16 1974-04-02 Johns Manville Apparatus for producing a mat
CH556289A (de) * 1973-03-09 1974-11-29 Fahrni Peter Vorrichtung zum speichern und dosierenden austragen von streufaehigem material.
DE2535382C3 (de) * 1975-08-08 1978-10-19 G. Siempelkamp Gmbh & Co, 4150 Krefeld Streumaschine

Also Published As

Publication number Publication date
FI97113B (fi) 1996-07-15
ES2083268T3 (es) 1996-04-01
ATE132419T1 (de) 1996-01-15
FI925575A0 (fi) 1992-12-08
FI925575L (fi) 1994-06-09
FI97113C (fi) 1996-10-25
EP0601986A1 (fr) 1994-06-15
DE59301329D1 (de) 1996-02-15

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