JP2007125772A - Wood drying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wood drying apparatus capable of eliminating the adhesion of a dark-colored liquid to wood which occurs during compulsive drying in a wood drying chamber. <P>SOLUTION: The drying apparatus includes a flap plate 4 which closes the gap between the side part of a dolly 2 for carrying the wood 5 into the wood drying chamber 1 and the inner wall surface 3 of the wood drying chamber 1. The flap plate 4 can be fitted to side part of the dolly 2 to be contacted with the inner wall surface 3 of the wood drying chamber 1 or the inner wall surface 3 of the wood drying chamber 1 to be contacted with the side part of the dolly 2. Moreover, a corrugated plate 7 having pores in recesses is preferably arranged between the dolly 2 and the wood 5 mounted on the dolly 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a building drying material for building structures such as pillars, foundations, stretches, and figures, and interior boards, and wood used for furniture, and particularly wood that is easily discolored by cedar and evaporated resin.

Conventionally, it is necessary to use wood that has been sufficiently dried after logging, but in order to shorten the drying period, it is usually forced to dry using a wood drying device.
This wood drying apparatus is generally a rectangular parallelepiped with a heat insulating structure, and includes a wood drying room and an operation room. For the forced drying of wood, as shown in FIG. 1, the wood 5 is loaded from the entrance of the wood drying room 1. It is carried out by carrying in the cart 2 that has been used.

  The wood drying chamber 1 usually has a heater 11 (heating device) for raising the room temperature at the top, a steam pipe 12 (humidifying device) for increasing the humidity in the drying chamber, and a circulation for circulating the air in the drying chamber. The blower fan 13 (circulation device) is disposed, the side portion is provided with a pipe line 14 (supply / exhaust device) communicating with the supply / exhaust fan, and the bottom portion is water / resin that has flowed out of the wood in the indoor drying process. A receiving portion 9 for storing liquid or the like is provided (see, for example, Patent Document 1).

The wood is loaded on the carriage with a gap and is carried into the drying chamber, and then forcedly dried in an air-tight atmosphere in a sealed drying chamber. At that time, the air in the drying chamber is normally circulated in the direction indicated by the arrow by the powerful circulating fan 13.
Japanese Patent Publication No. 4-68550

The wood 5 on the carriage carried into the wood drying chamber is forcibly dried for a long time of 20 hours or more by being exposed to the circulating air in the powerful drying chamber as described above. Resin liquid and the like are also ejected together with water vaporized from the water, and a large amount of them are accumulated in the receiving portion 9 provided at the bottom of the wood drying chamber. These liquids are concentrated at a high temperature in the wood drying chamber and changed to a dark black liquid 15.
Further, the dark black liquid 15 accumulated in the receiving portion 9 is caused by the high temperature and strong circulating wind in the drying chamber atmosphere, the gap between the side portion of the cart 2 and the inner wall surface 3 of the wood drying chamber, and the cart and its loaded wood. There is a problem that the timber is transpired from the gap between the two and attached to the surface of the wood 5 loaded on the carriage 2 to discolor the wood.

  Wood that has been discolored by the adhering dark liquid is less likely to be discolored and significantly reduces the product value of the wood. Therefore, in order to prevent the dark black liquid 15 from accumulating in the receiving part 9, an attempt has been made to discharge the wood from the bottom of the receiving part 9 through a discharge pipe (not shown) during drying of the wood. Nevertheless, it was not possible to completely eliminate dark liquid deposition on the wood during drying.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a wood drying apparatus capable of producing a high-quality, uncolored dry wood by eliminating adhesion of dark black liquid to wood during forced drying in a wood drying chamber.

The wood drying apparatus according to the present invention is characterized in that a flap plate is provided to close a gap between a side portion of a carriage on which wood is loaded and carried into a wood drying chamber and an inner wall surface of the wood drying chamber.
In this wood drying apparatus, a flap plate that closes a gap with the inner wall surface of the wood drying chamber may be provided on a side portion of the carriage on which the wood is loaded and carried into the wood drying chamber. A flap plate may be provided on the wall surface to close the gap between the inner wall surface and the side of the carriage loaded with wood and carried into the wood drying chamber. Furthermore, it is preferable to arrange a corrugated plate having pores in the recesses between the carriage and the wood loaded on the carriage.

  According to the wood drying apparatus of the present invention, during drying of the wood loaded on the carriage carried into the wood drying chamber, moisture, resin liquid, etc., ejected from the inside of the wood was accumulated in the receiving portion of the drying chamber. Since the dark black liquid does not evaporate and soils the wood, dry wood with high product value can be provided.

Embodiments of a wood drying apparatus according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a schematic longitudinal sectional view showing an example of a drying chamber according to the wood drying apparatus of the present invention, and FIG. 2 is a schematic partial perspective view showing an example of a corrugated plate used in the wood drying apparatus of the present invention. It is.

As shown in FIG. 1, the wood drying apparatus of the present invention is configured to close the gap between the carriage 2 carried into the wood drying chamber 1 and the inner wall surface 3 of the wood drying chamber 1 with a flap plate 4. .
In the wood drying apparatus shown in FIG. 1, the flap plate 4 is rotatably attached to the upper surface of the side edge of the carriage 2 by a hinge or the like, and before the carriage 2 loaded with the wood 5 is carried into the wood drying chamber 1, The flap plate 4 is fixed with its upper edge facing upward, and after the carriage 2 is carried into the wood drying chamber 1, the flap plate 4 is brought down to the inner wall surface 3 side of the wood drying chamber 1, and the flap plate 4 The upper edge is brought into contact with the inner wall surface 3 of the wood drying chamber 1 so as to stand against the gap between the side portion of the carriage 2 and the inner wall surface 3 of the wood drying chamber 1.

In addition, although the flap board 4 showed the example attached to the side part upper surface of the trolley | bogie 2 in FIG. 1, you may make it provide in the side surface of the trolley | bogie 2. FIG.
Further, in the wood drying apparatus of the present invention shown in FIG. 1, an example is shown in which the flap plate 4 is attached to the side portion of the carriage, but the flap plate 4 can be rotated on the inner wall surface 3 of the wood drying chamber 1 by a hinge or the like. Before the carriage 2 is carried into the wood drying chamber 1, it is leaned on the inner wall surface side of the wood drying chamber 1, and after the carriage 2 is carried into the wood drying chamber 1, the flap plate 4 is tilted to flap. The upper edge of the plate 4 may be brought into contact with the side portion of the carriage 2 so as to close the gap between the side portion of the carriage 2 and the inner wall surface 3 of the wood drying chamber 1.

  The flap plate 4 is preferably made of a stainless steel plate having excellent corrosion resistance and a thickness of 1.2 mm to 3 mm, and the flap plate 4 is provided over the entire periphery of the side portion of the carriage 2. Also good. Further, the front edge of the flap plate 4 is formed of an elastic member such as a heat-resistant rubber, or is covered with the elastic member so as to improve the adhesion between the flap plate and the inner wall surface of the wood drying chamber 1. It may be.

In the wood drying apparatus of the present invention, a corrugated plate may be disposed on the carriage 2 together with the flap plate 4 described above, and the wood 5 may be loaded on the corrugated plate.
As shown in FIG. 2, the corrugated plate 6 has pores 8 formed in the concave portions 7 of the corrugated plate. By loading the wood 5 on the corrugated plate 6, the wood 5 and the carriage 2 are formed. The space formed by the concave and convex portions of the corrugated plate 6 promotes convection of the circulating air in the room and promotes uniform drying of the loaded wood.

Further, as described above, the water or resin liquid ejected from the inside of the wood drops and accumulates in the receiving portion 9 at the bottom of the wood drying chamber through the pores 8 formed in the concave portion 7 of the corrugated plate 6. .
The pores 8 are formed at intervals of 50 to 200 mm on the bottom surface of the concave portion 7 of the corrugated plate 6, and the diameter of the pores 8 is preferably 1 to 3 mm.
If the diameter of the pores 8 is smaller than 1 mm, the dripping of moisture or resin liquid that has flowed into the concave portions 7 of the corrugated plate 6 into the receiving part 9 is prevented, and if it is larger than 3 mm, the dark black liquid collected in the receiving part 9 By passing the transpiration, the effect of preventing the dark black liquid from adhering to the dry wood is hindered.

The corrugated plate 6 is preferably made of a stainless steel plate having excellent corrosion resistance, like the flap plate.
In addition, the corrugated plate 6 is dotted with a corrugated continuous body having a square cross section having an opening upward as shown in FIG. 2, a corrugated continuous body having an arc cross section having an opening upward, or a trapezoidal shape and a truncated cone. Any shape may be used as long as the shape is continuous or dotted.

  The wood drying apparatus according to the present invention is configured such that the gap between the inner wall of the wood drying chamber and the side portion of the carriage is closed with a flap plate, so that the carriage is heated by the high temperature and strong circulating air in the drying room atmosphere during the drying of the wood. Since the dark black liquid accumulated in the receiving part below does not roll up from the gap, the dark black liquid adheres to the dry wood and the product value of the wood is not lowered.

Further, the corrugated plate disposed on the upper surface of the carriage improves the ventilation between the carriage loaded on the carriage and the carriage, thereby promoting the drying of the wood. Furthermore, the pores provided in the bottom surface of the concave portion of the corrugated plate cause moisture or resin liquid that has come out of the wood to fall to the receiving portion provided at the bottom of the wood drying chamber, but the moisture accumulated in the receiving portion. And the dark black liquid formed by the resin liquid is prevented from being rolled up by the high temperature and strong circulating air in the wood drying chamber.
Thus, the wood drying apparatus of the present invention covers the gap between the side of the carriage and the inner wall surface of the wood drying chamber with the flap plate, and further arranges the corrugated plate on the carriage so that the wood being dried As a result, it becomes possible to obtain dry wood with high product value.

  According to the wood drying apparatus of the present invention, high-quality dry wood can be obtained, and it can also be used in various fields in which an object to be dried loaded on a carriage is brought into a drying chamber and dried.

It is a schematic longitudinal cross-section which shows an example of the drying chamber which concerns on the wood drying apparatus of this invention. It is a typical fragmentary perspective view which shows an example of the corrugated plate used for the wood drying apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wood drying room 2 Carriage 3 Inner wall surface (wood drying room) 4 Flap board 5 Wood 6 Corrugated plate 7 Recessed part (corrugated plate) Recessed part 8 (Recessed part of corrugated plate) 9 Receiving part 11 Heating heater
12 Steam pipe 13 Circulating fan 14 Pipe line 15 Dark black liquid

Claims (4)

A wood drying apparatus comprising a flap plate that closes a gap between a side of a carriage for loading wood into a wood drying chamber and an inner wall surface of the wood drying chamber. A wood drying apparatus, wherein a flap plate for closing a gap with an inner wall surface of the wood drying chamber is provided on a side portion of a carriage on which wood is loaded and carried into a wood drying chamber. A wood drying apparatus, wherein a flap plate is provided on an inner wall surface of a wood drying chamber to close a gap between the inner wall surface and a side of a carriage loaded with wood and carried into the wood drying chamber. The wood drying apparatus according to claim 2 or 3, wherein a corrugated plate having pores in the recesses is disposed between the carriage and the wood loaded on the carriage.

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