DE1729213A1 - Veneer drying plant - Google Patents

Description

Furrier token system

The traditional smoking veneer drying ovens are equipped with conveyors that run through them so that they convey the veneer panels or other similar panels through the oven, at the same time heated gas or heated air through the oven for drying the veneer panels are placed in Umleuf. E * int also common that the top and bottom of the c * t ordered veneer panels run at high speed .109825703 &>'

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can be applied by means of jet nozzles.

The prior art is referred to U.S. Patent 3,199,213 Weigh in which a process and an institution are described that of the plant according to the invention are similar, but do not have the improved features of the present invention, which features are described in more detail below #

With the system ni.ofc the aforementioned intent, the to nondering pieces of wood with the help of conveyors through the Trooken detachment moves, with hot iroknunjp attedium being directed in a multitude of high-speed jets directly onto the opposite faces of the wooden case.

In the case of the inventive system, in contrast to the Establishment based on the aforementioned USA patron is a new type Structure of the structure in combination with a more economical structural design of the Trookenkaioner YorgceKen to make a more effective To achieve irokination process with a simpler drinking form.

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General drilling

The invention relates to a veneer drying oven with an upper and a lower drying chamber, between which veneer panels are conveyed from one end of the oven to the other. The lower wall of the upper chamber u <: d the upper wall of the lower K: .n, it forms a new jet nozzle and ut.l ^ ufeyeteni, with v.elohem the mentioned walls are formed by a series of trough-shaped parts , which is arranged parallel to one another, whereby the edges of adjacent trough-shaped parts are connected to one another so that the connecting parts between adjacent trough-shaped parts support a multitude of jet nozzles! Gae immediately feten the conveyed veneer panels is rlohtet and a series of channels for the regulated circulation ( heated air or heated gas is provided used in the drying chambers «

ϊη of the enclosed calibration standards show:

Fig. 1 is a plan view of an inventively molded Furr.ierrookenanlage,

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Figure 2 is a side view of the one shown in Pigd System,

Pig. J a view in the Quereohnltt after the line 3 «» 3 in Pige2,

* Pig · 4 on an enlarged scale a pohaubildllohe view of a section of the XroCkner »which the

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novel arrangement of the jet nozzles dare divides » which form an important part of the invention;

5 in an enlarged KaBbtab a partial section near the line 5 - 5 in Fig. # 3t and

6 shows a side view of the ab * shown in FIG. cuts «

jBingelbesohreibunp the tested execution form

In the drawings, "in which like referring to like parts in the 'different views, The plant shown in accordance with the invention divides a load-bearing Substructure 10, on which a longitudinally stretched housing 11 with Page vtor. 12 and 13 »a bottom wall 14, an upper one Wall 15 and Endvftnden 16 and 17 is arranged. The end wall

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de 16 and 17 and provided with suitable openings in the form of transverse slits in order to errögliohen the entry and exit of the veneer mats, which are conveyed through the housing during the drying process β ο how to enable the passage of conveyor belts or the like ₀ »like this is generally common in drying systems

The housing 11 has an upper drying chamber 18, which is located at a distance above a lower drying chamber 19 and with this a thin channel or passage 20 formed Nozzle arrangement. The lower drying chamber 19 has a full lower wound 23 and an upper wall 24 in the form of a fluidic nozzle arrangement. On each side of the drying chambers are how Figo? Fig. 13 shows side walls 25 and 26 connected to the upper and lower walls 21 and 23 to form a contiguous duct for the heated air which is passed through the upper and lower drying chambers. On each side of the drying chambers 16 and 19 and adjacent to the lower wall 22 and the upper wall 24 there are manifolds 27 and 28 ₀ Each of the bread lines is provided with a fan 29 for the supply of pressure air to the Trookenkaihaern. Each fan is duroh a motor 30 driven «which is arranged on the top of the housing 11

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and drives the fan to rotate by means of a belt drive 31.

The lower wall 23 and the upper wall 24 in the form of planar DUpen arrangements form an important part of the invention and are described in more detail below _o How is sufficient SIOI from Figo4, 5 and 6 results in detail, the bottom wall 22 · durene two Absohnitte 32, gellldet 33 as shown in Fig represented. 3 The section 32 is formed by a number of arched parts 34, each of which is connected to an adjacent one by a web part 35, which is connected to an array of lines. Nozzles 36 are provided, the outer exit end of which ended at the thin passage 20 at their height SU. Wit in Fig.4 and 5 ereiohtliol · and indicated by arrows, adjacent arched parts between eioh form a channel for the supply of heated air to the nozzles 36. These channels are denoted by 39. Each arched part forms a channel or tunnel for the return of the "rMteten air" coming out of the DUeensue, which tunnel β with 40

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are designated ο

Inside the drying chambers and calibrated in the LKngerichtune dee 'Xroeknergehäueee ere stretching are rows of heating pipes 41 arranged, duroh v / elche the Srooken air at their Circulation by heating the drying chambers, eo dafi an adequate supply of heated, dry air will be required. -i On the top wall 15 of the housing is an A Bah 1 vent tube 42 provided, each of which has a throttle valve 4? has, through which the drying chambers to the outside air can be vented

The conveyor according to the invention for the veneer panels to be treated consists of an endless link belt 44 which is attached to Legs upper run is supported by Winkeleieen 45, which are supported by vertical supports 46 »The lower run and the link ritmene 44 are supported by angular brackets 47, the also εη the. Stutzer. 46 befeeti ^ t are. The link belt whites a height of limbs. 48 on, their ends en crossbars 49 attached to the ends of which the latter rolls 50 are stored, which run on the Winkeleieen. those on cr. served to form a uniform one horizontal supports for the link belt run «How

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As can be seen from Pig 3, rails 53 in Fork are one inverted T on horizontal rails 54 to form a roller bearing for the intermediate rollers 51 is arranged. The 2SU treating: leaves rest on the upper run dee Link belt 54 and are therefore duroi the dryer promoted.

ÜKi to a more reliable promotion of the veneer panels through the dryer. and uir to prevent slippage between the platter and the conveyor 44 a second endless belt 55 is provided, the lower run of which is calibrated in the space between the upper run of the lower one Jiieniene and below the lower wall 22 of the upper drying chamber emotional. The upper run of the Kieraene 55 is open freely rotatable transverse rollers 56 mounted on the supports 46 is attached and the lower strand of the Biemene eats freely suspended and can rest on the conveyed veneer panels » where flue weight of the suspended parts dee Riβmeηβ not only helps move the veneer panels forward, it also helps keep the panels flat during conveyance holds. The upper belt is just like the lower conveyor belt from the design old open links to get the belt relatively large openings, so a lot hot air or hot gas can penetrate against the upper

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saite and CIe underside of the conveyed veneer panels.

When the system according to the invention is in operation, the veneer panels on the left side of the oven, seen in FIG. 2, introduced with the panels first on the lower conveyor 44 rest and then with the help of the lower run of the upper one Conveyor that rests on the veneer panels, as well as moved forward by the movement of the lower conveyor werder :. As ε Ich results from Fig. 3, air or Ck. 8 through the upper and lower drying chambers are set in circulation with the aid of the fan 29 and this air or this gas becomes heated in that it is passed over the heating tubes 41. This air passes between neighboring roe hindu and roe is directed at high speed to the jet nozzles 36, as shown in Fig. 5, so that the veneer panels, which pass close to the nozzles, immediately applied «, Ncc: leaving the surface of the Plates, the air passes through the troughs 34 in order to remove from to be relocated to Uialauf through the drying chambers ο Bit special shape of the trough-shaped parts enables that the air passes faster and the speed of circulation is increased. In this way, a regulated flow of treatment air is achieved, given the shape and position of the nozzle assemblies, including the lower and upper walls

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or the lower drying chamber forms. How achieved are suffer walls similar to each other and find the same effect against the underside of each of the treated veneers plates etatto

^ Obvohl in advance! end a preferred embodiment of the Invention has been described, it is not limited to this, but can vary within its scope Experience changes «

Claims ;

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Claims (1)

651 15th December 1967 P ₁ ja te η ta η β ρ r ü ο he 1 “Veneer _{drying system 9} characterized by an elongated housing, in which an upper and a lower drying chamber are arranged in velchera, the lower wall of the upper channel of the upper wall of the lower g Chamber is closely adjacent, a facility for promotion from powdered plates swischoi the two mentioned Wounds and a device, through v.elche a regulated Amount of heated air through "the drying chambers mentioned and against the top as well as against the bottom of the Veneer plates can be iced in circulation " Plant naoh claim 1, dsduroh characterized, dsß the lower wall dei'oberer. Drying chamber and the top wall the lower drying chamber by a number of trough-shaped " ger parts are formed, v / elche Kan ^ '- le for heated Form air that the surfaces of the plywood panels for the circulation in the mentioned. Ke.-r.iern leave, "and jet nozzles between the trough-shaped parts to the vertical These surfaces are provided with heated air 3ο system naoh claim 2, characterized in that ■ - 11 ο-Ι 098 25/0380 651 calibrate the trough-shaped skins over the full width dee drying oven. Plant according to claim 3 »characterized in that eic} the trogfUrnii ^ en parts from the longitudinal center of the Ofer.e outwards to the rare ones outwards expand ο Appendix nccfc claim .4 »characterized in that the conveyor means a lower endless conveyor with a flat, rigid upper run on which the Purnierplatten. Lie and which between the mentioned Walls movable let and an upper endless Has conveyor whose freely suspended lower run rests on the top of the veneer panels. - 12 10982 R / 0380