SU395255A1 - INSTALLATION FOR DRYING VENEER - Google Patents

Description

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The invention relates to the production technology of peeled and cPpirairao veneers and can be used in the woodworking and plywood industry.

A known installation of dd Sh.po drying on, containing a Tran export, a device having carrier elements, heating, cooling and ventilation devices.

The purpose of the M1 creation is to create an installation for (defect-free support for planed and peeled sheets | Shch1Pona predominantly small thickness (0.1-0.8 mm). This is achieved by the fact that the supporting elements of the Transport-Reaming device are made of capillary-porous tape one of which is made of / material with a higher thermal conductivity coefficient (for example, from the STI fabric), and the other is made of a material with a greater degree of moisture absorption (for example, cotton T1kan), and supporting elements .1 heaters "cooling" | split lozheny TaKHiM a way that the passage of LIS "I1M both belts in contact alternately.

The drawing shows the proposed installation, longitudinal section.

The installation includes tensioning rollers /, carrying elements of the transporting device - (Caiil – porous belts 2 and 5, supporting rollers 4, heaters and cooling bodies (drums) 5, inlet pipe 6, ventilation unit 7 and housing eight.

The installation works as follows. Tension rollers 1, support rollers 4 and forcibly rotating drums 5 ensure the advancement of the transporting device — 1-pillar-porous ribbons 2 and 3 through the entire installation. 3airpyi3iKa and the unloading of the terminal is carried out on the same floor.

The veneer enters the tape 2 and then — between the tapes 2 and 3 — envelops all the drums (on, ground and cooling), alternately in contact with them. In this case, a more heat-conducting tape 2 transfers heat from the barabaia 5

5 to the veneer, which contributes to the movement of moisture in the shponpon (in TopoiHy more. Moisture-absorbing tape 3. Some of the moisture is absorbed also by more heat-conducting tape. On the next drum with its surface. on top of a more heat-conducting tape, etc.

For the first time along the belt, the drums are heated with a heat carrier, such as water vapor, the last drums are cooled with a liquid, such as water, and serve to cool the spone. The number of heating cooling drums Determined by calculation.

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Moisture vapors from the sponge are transported through the trap, and the tapes are placed inside the casing and the ventilator is removed by the crown organ 7. The distant vapor-air mixture passes through the surrounding atmosphere 6 through the surrounding atmosphere. .

Tray ribbons are in continuous contact with the dried out belt, spray it to the surface of the drums and hold the shrinkage: ke of the wood. The veneer dries out, in the stretched state, in the drying process it is smoothed, in the cooling zone the shape of it becomes stable. About it comes out of the installation without the presence of cracks and joints, and later under the influence is exposed to swelling.

Prev Ö Mötl z obrete e.

Claims (3)

I. Ustamo, nka for veneer, including transporting, having. Carriers the ycTpoHCTiBo elements, heating, cooling and ventral organs, are distinguished by the fact that, in order to improve the quality of the dried- (Material, intensification of the drying process and reduce energy intensity, the carrier elements of the transport device, Teflon tape is one of the material with a higher Tenacity coefficient, and a material with a higher degree of moisture absorption. 2. The installation according to claim 1, characterized in that the tape is made of a material with a higher coefficient of thermal absorption. It is made of fiberglass. 3. Installation according to claim 1, characterized in that the tape is made from a material with a greater degree of moisture absorption and is made from a cotton-absorbent fabric.