JP2615276B2 - Wood heat treatment method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for heat-treating wood for artificially producing a buried wood-like material.

[0002]

2. Description of the Related Art Conventionally produced budding trees are hardened by moderate carbonization, and become lustrous when polished. Have been.

According to the present invention, a heating device such as a heater is not provided in a wood heating tank, and only a circulating hot air in which an inert gas generated by another device is used in combination with air is forcibly introduced into the wood heating tank. It is intended to provide a method for heat-treating wood in which the surface of the treated wood is heated evenly to produce mass-produced woody materials.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

[0005] A hot air generator b and a blower c are provided in the wood heat treatment tank a to form a circulation path 1 for forcedly circulating hot air at an appropriate temperature in the wood heat treatment tank a. A large number of perforated plates 5 'and 5' are opposed to each other with a gap therebetween, and a reinforcing plate 5 "is disposed between the opposed perforated plates 5 'and 5' to place the treated wood 2 thereon. The load bearing frame 5 is formed, and a hot air passage gap 3 is provided in the load bearing frame 5, and the processed wood 2 is placed in the wood heat treatment tank a by interposing the mounting bearing frame 5 provided with the hot wind passage gap 3. Hot air blown through a ventilation distribution plate 9 in which a large number of ventilation holes 8 are scattered and formed at a position on the upper side of the processing wood 2 in the wood heating processing tank a where the ventilation is higher than the processing wood 2. The present invention relates to a method for heat-treating wood, which is provided so as to block the heat.

[0006]

The hot air generated by the hot air generator b is forcibly introduced into the wood heating tank a by the blower c, and the treated wood 2 in the wood heating tank a is heated only by the circulating hot air.

At this time, a loading support frame 5 is interposed between the processed woods 2 stacked in multiple stages, and hot air is passed through the hot air passage gap 3 and the hot air passage hole 4 formed in the loading support frame 5 to thereby process the processed wood. The surface of No. 2 is heated evenly and heat-treated to a budding state. Further, since the hot air sent to the treated wood 2 is blown through the ventilation holes 8 of the ventilation distribution plate 9, the hot air is not intensively applied to a part of the treated wood 2 and is dispersed to be averaged. Hot air is treated wood 2
And the surface of the treated wood 2 is heated evenly.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a preferred embodiment of the present invention. A hot air generator b capable of adjusting and setting the temperature of a wood heat treatment tank a and a blower c are installed in the heat treatment tank a. A circulation path 1 for forcedly circulating hot air at a desired temperature is formed, and two perforated plates 5 ′, 5 ′ each having a large number of hot air passage holes 4 are opposed to each other with a gap therebetween. '・
A reinforcing plate 5 "is disposed between 5 'to form a loading support frame 5 on which the processed wood 2 is placed, and the loading support frame 5 is provided with a hot air passage gap 3, and the hot air passage gap 3 is provided. The processing wood 2 is arranged in a multi-stage manner in the wood heat treatment tank a by interposing the mounting support frame 5, and is positioned at a position higher in the air flow than the processing wood 2 in the wood heat treatment tank a. A heat treatment method for wood is provided in which a ventilation distribution plate 9 in which a large number of ventilation holes 8 are scattered and formed is arranged so as to block hot air being blown.

Further, a specific description will be given based on the drawings.

The illustrated loading support frame 5 shows two examples.

FIG. 3 shows the opposed perforated plates 5 'and 5' and the reinforcing plate 5 ".
To form hot air passage gaps 3, and hot air passage holes 4 are scattered throughout the opposed perforated plates 5 ′ and 5 ′ and the reinforcing plate 5 ″. The loading support frame 5 is made of metal, resin, or fiber Any structure may be adopted as long as it is a perforated plate such as a framed net plate with good ventilation.

Further, an inert gas generator 11 is provided in the wood heat treatment tank a so that a hot air of an inert gas such as nitrogen or carbon gas or a nonflammable gas can be employed without providing a heater in the wood heat treatment tank a. And a vacuum exhaust device 10 for eliminating O ₂ is provided so that the treated wood 2 is heated without burning.

Further, a ventilation distribution plate 9 having a ventilation hole 8 which also functions as a sap trapping hole for trapping and removing sap is provided in the hot air introduction part 6 and the hot air derivation part 7 in the wood heat treatment tank a. I have. In addition, it is desirable to form a drain portion 9 ′ below this so as to store the sap in the sap tank 9 ″.

The air distribution plate 9 on the side of the hot air outlet 7 also has a function of suppressing the convection of the hot air.

Although the hot air generator b has a number of heaters 12 in parallel to generate hot air, a hot air generator b of a heat exchange type using a boiler may be employed.

In the figure, reference numeral 13 denotes a barometer, 14 denotes a safety valve, and 15 denotes a valve.

[0017]

As described above, the present invention provides a wood heat treatment tank provided with a wood heat treatment tank, a hot air generator, and a blower provided in the circulation path to forcibly circulate hot air into the wood heat treatment tank. When a large amount of treated wood is stored in the inside, the treated wood is stacked in multiple stages by interposing a loading support frame provided with a hot air passage gap and a hot air passage hole, and heated by supplying hot air to the wood heat treatment tank. And, the treated wood is dried with hot air forced to circulate by a blower,
The processed wood stacked in multiple stages is uniformly heated from all directions by the interposition of the loading support frame without the wood being burnt or scorched like the heater heating. Will be advanced.

Polishing this buried wood-like material provides a beautiful and shiny carbonized skin, and exhibits excellent features such as being used for high-grade furniture and various decorative materials.

Further, according to the present invention, a ventilation distribution plate having a large number of ventilation holes scattered and formed at a position more ventilated than the treated wood in the wood heating treatment tank is disposed so as to block the hot air being blown. Since the hot air sent to the treated wood is blown through the ventilation holes of the ventilation distribution plate, the hot air does not intensively hit a part of the treated wood and is dispersed, so that the hot wind is averagely dissipated. This is an extremely excellent method of heat treating wood in which the surface of the treated wood is further heated evenly.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a hot-air generator for performing a wood heat treatment method of the present invention.

FIG. 2 is a perspective view of treated wood loaded in a wood heating tank.

FIG. 3 is a perspective view showing an example of a loading support frame 5.

FIG. 4 is a perspective view showing an example of a loading support frame 5.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Circulation system path 2 Processed wood 3 Hot air passage gap 4 Hot air passage hole 5 Loading support frame 5 'Opposed perforated plate 5 "Reinforcement plate 8 Vent hole 9 Ventilation dispersion plate a Wood heat treatment tank b Hot air generator c Blower

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Satoshi Aizawa 3-22-25 Minamirokugo, Ota-ku, Tokyo Akiko Co., Ltd. (56) References JP-A-60-63105 (JP, A) JP-A Sho 57-212003 (JP, A) JP-A-56-51308 (JP, A) JP-A-49-404 (JP, A) JP-A-57-61506 (JP, A)

Claims (1)

(57) [Claims] 1. A hot air generator and a blower are provided in a wood heat treatment tank to form a circulation path for forcibly circulating hot air at an appropriate temperature in the wood heat treatment tank, and a number of hot air passage holes are formed. The two perforated plates are opposed to each other with a gap therebetween, a reinforcing plate is disposed between the opposed perforated plates to form a loading support frame on which the processed wood is placed, and a hot air passage gap is provided in the loading support frame, A processing support wood provided with the hot air passage gap is interposed therebetween so that the processing wood can be stacked and disposed in the wood heating processing tank in a multi-stage manner, and the air is blown more than the processing wood in the wood heating processing tank. A heat treatment method for wood, wherein a ventilation distribution plate having a large number of ventilation holes scattered at a good position is disposed so as to block hot air being blown.