JP2018094882A - Wood drying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood drying device excellent in drying efficiency and capable of drying wood uniformly.SOLUTION: There is provided a wood drying device 100 for drying wood W containing moisture, having a housing part 1 with a box shape having a bottom 11 with a rectangular shape, side wall parts 12 arranged on each side of the bottom respectively, and a ceiling part 13 arranged at an upper end of each side wall part, a mounting part 2 of the wood W arranged on a top surface of the bottom, a hot air sending part 3 arranged between the wood W mounted in the mounting part and the ceiling part and sending hot air to a specific direction, and a hot air guiding part 4 with a sheet shape arranged on an inner wall surface of the side wall part to which the hot air is sprayed, in which a surface of the hot air guiding part projects to inside as getting a low side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wood drying device, and more particularly to a wood drying device for drying moisture-containing wood, particularly non-combustible wood.

  Wood is not only excellent in humidity control and heat insulation properties, but also has a warmth and a unique texture, so it is widely used not only in building materials but also in fields such as furniture, joinery and civil engineering.

By the way, since the so-called raw material immediately after the felled lumber is lumbered contains a lot of moisture, it is likely to be deformed and contracted as drying progresses. For this reason, when using as a building material, a raw material is generally dried.
Further, not only raw materials but also wood that has been subjected to chemical treatment or the like for imparting functionality is similarly subjected to drying treatment to remove excess moisture. In recent years, the use of incombustible wood as a building material has attracted attention from the viewpoint of disaster countermeasures such as burning. Such incombustible wood is produced by impregnating wood with an incombustible liquid and applying a drying treatment.

In order to perform the drying process positively, an apparatus for drying the wood is necessary. As the wood drying apparatus for performing the drying process, for example, a heating apparatus that performs a drying process on the wood stored in the container, Further, a wood drying apparatus is known that includes a humidity adjusting device that adjusts the humidity inside the container, and a control unit that controls the operation of each device and causes the heating device to perform hot air heating and dielectric heating (for example, Patent Document 1).
In addition, a dryer that contains wood, a decompression unit that decompresses the interior of the dryer, a heat exchanger that is interposed between the dryer and the decompression unit, and that condenses water vapor in the dryer, and the heat exchanger A drain tank for discharging condensed moisture, a steam supply means for supplying steam into the dryer, a heating tube and a fan as hot air generating means for generating hot air, a high-frequency heating apparatus for heating wood at high frequency, and operations thereof There is known a wood drying apparatus provided with a control means for controlling (for example, see Patent Document 2).

JP 2003-112305 A JP 2008-106959 A

However, in the wood drying apparatus described in Patent Documents 1 and 2, a fan is provided to circulate hot air, but this alone circulates hot air uniformly and effectively throughout the wood drying apparatus. I can't say I can.
For example, in a region far from the fan in the wood drying device, hot air tends to stagnate. As a result, the drying efficiency is deteriorated, and in some cases, there is a risk of unevenness in the dry state of the wood.

  This invention is made | formed in view of the said situation, It aims at providing the wood drying apparatus which is excellent in drying efficiency and can dry wood more uniformly.

Etc., in order to solve the above-mentioned problems, and the like, by providing a plate-like hot air guide portion that protrudes inward as the surface goes downward on the inner wall surface of the side wall portion to which hot air is blown, The inventors have found that the present invention can be solved, and have completed the present invention.

  The present invention is (1) in a wood drying apparatus for drying wood containing moisture, provided at a rectangular bottom, side walls standing on each side of the bottom, and upper ends of the side walls. A box-shaped housing part having a ceiling part, a wood placing part set on the top surface of the bottom part, and a wood placed on the placing part and the ceiling part. A hot air flow section for flowing in a predetermined direction, and a plate-shaped hot air guide section provided on the inner wall surface of the side wall section to which the hot air is blown, and the surface of the hot air guide section becomes inward as it goes downward Lie in the wood drying equipment protruding.

  The present invention resides in (2) the wood drying apparatus according to (1), wherein the side wall portion has a door portion, and the hot air guide portion is provided on the inner wall surface of the door portion.

  In the present invention, (3) an exhaust port for releasing hot air to the outside is provided on the inner wall surface of the side wall portion facing the side wall portion provided with the hot air guide portion, and the exhaust port can be opened and closed. The wood drying apparatus according to the above (1) or (2).

  The present invention resides in (4) the wood drying device according to (3), wherein an exhaust fan for forcibly releasing hot air to the outside is attached to the exhaust port.

  According to the present invention, (5) any one of the above (1) to (4), wherein the hot air flow section includes a heater and a circulation fan, and the hot air heated by the heater is sent in a predetermined direction by the circulation fan. Or the wood drying apparatus according to any one of the above.

  In the present invention, (6) a plurality of hot air guide portions are provided vertically on the inner wall surface of the side wall portion to which hot air is blown, and the hot air guide portion provided on the upper side and the inner wall surface of the side wall portion There exists in the wood drying apparatus as described in any one of said (1)-(5) provided with the passage part for allowing a part of hot air to pass through in between.

  In the present invention, (7) a plurality of hot air guide portions are arranged in parallel in the inner wall surface of the side wall portion to which hot air is blown, and a partition plate is attached between the hot air guide portions. It exists in the wood drying apparatus as described in any one of said (1)-(6) which is.

  This invention exists in the wood drying apparatus as described in any one of said (1)-(7) from which a nonflammable wood is obtained by drying (8) wood contains a nonflammable liquid.

In the wood drying apparatus of the present invention, since the plate-like hot air guide portion that protrudes inward as the surface goes downward is provided on the inner wall surface of the side wall portion, the side wall portion extends from the upper hot air flow portion. The hot air blown to the air is lowered along the side wall and guided inward while descending along the hot air guide provided in the side wall.
Then, by continuing the flow of hot air along this path, the hot air circulates in a circle in the housing portion.
Thereby, in the said wood drying apparatus, while drying efficiency of wood improves, it becomes possible to dry wood uniformly.

  In the wood drying apparatus of the present invention, the side wall portion has a door portion, and the hot air guide portion is opened and closed integrally with the door portion by providing the hot air guide portion on the inner wall surface of the door portion. The hot air guide does not get in the way when wood is carried in or out.

In the wood drying apparatus of the present invention, the temperature in the housing part is adjusted by providing an exhaust port for releasing hot air to the outside on the inner wall surface of the side wall part facing the side wall part provided with the hot air guide part. Can do. That is, when the temperature in the housing part is higher than the setting, the exhaust port is opened, and when the temperature is lower than the setting, the exhaust port may be closed.
At this time, an exhaust fan for forcibly releasing hot air to the outside is attached to the exhaust port, whereby exhaust in the housing portion can be performed quickly.

In the wood drying apparatus of the present invention, when the hot air flow section is composed of a heater and a circulation fan, the heating and moving can be efficiently performed and the hot air can be flowed while having a simple structure. .
Moreover, the direction in which hot air is blown can be arbitrarily set by adjusting the position and orientation (angle) of the circulation fan.
In the wood drying apparatus, the position and orientation of the circulation fan are set so that hot air is blown to the inner wall surface of the side wall portion provided with the hot air guide portion.

  In the wood drying apparatus of the present invention, a plurality of hot air guide portions are provided vertically on the inner wall surface of the side wall portion to which hot air is blown, the hot air guide portion provided on the upper side, and the inner wall surface of the side wall portion, In the case where a passage part for allowing a part of hot air to pass therethrough is provided, a part of the hot air is guided inward by the upper hot air guide part, and the other hot air is guided by the lower hot air guide part. Thus, the hot air is guided inwardly in two stages, upper and lower, so that the hot air can be circulated in two systems in the housing portion. This makes it difficult for hot air to stay and makes the temperature in the housing portion more uniform, so that the drying efficiency of the wood can be further improved and the wood can be dried more uniformly.

  In the wood drying apparatus of the present invention, a plurality of hot air guide portions are juxtaposed in the lateral direction on the inner wall surface of the side wall portion to which hot air is blown, and a partition plate is provided between the adjacent hot air guide portions. Since the movement of the hot air in the horizontal direction (horizontal direction) is suppressed by the partition plate, the diffusion in the horizontal direction is suppressed, and the hot air can be circulated in one direction reliably and efficiently. It becomes possible.

In the wood drying apparatus of the present invention, when the incombustible liquid applied to the wood is dried, it can be uniformly dried over the entire wood, so that it is possible to suppress migration of active ingredients of the incombustible liquid. it can.
As a result, it is possible to prevent unevenness from occurring in the incombustible effect of the incombustible wood.

FIG. 1 is an explanatory diagram showing the internal structure of the wood drying apparatus according to the present embodiment. FIG. 2 is a perspective view showing only the heat insulating plate of the wood drying apparatus according to the present embodiment. FIG. 3 is a perspective view showing a part of the hot air guide part in the wood drying apparatus according to the present embodiment. FIG. 4 is a perspective view illustrating an example of an aggregate of pieces of wood placed on the placement unit in the wood drying apparatus according to the present embodiment. FIG. 5 is a cross-sectional view taken along the line A-A ′ of FIG. 1. FIG. 6 is a perspective view showing a part of a hot air guide part in a wood drying apparatus according to another embodiment. Drawing 7 is a figure showing the 2nd side wall part in the wood drying device concerning other embodiments. FIG. 8 is a transparent top view for explaining the position of the sensor in the aggregate of pieces of wood drying apparatus according to another embodiment.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

  The wood drying apparatus according to the present invention is used for drying wood containing a lot of moisture, such as raw wood immediately after sawed lumber, or wood just after chemicals are applied. In the present specification, “wood containing a lot of moisture” refers to wood having a moisture content (weight of moisture × 100 / total dry weight) of 20% by mass or more.

Among these, as wood containing a lot of moisture, wood immediately after applying a non-flammable liquid (chemical solution) is preferably used.
The so-called incombustible wood (noncombustible wood) in which excess moisture is removed and the incombustible active ingredient is attached to the wood by drying the wood immediately after applying the incombustible liquid (chemical) with the above-mentioned wood dryer. Is obtained.

Here, in the wood drying apparatus according to the present invention, it is possible not only to remove excess moisture but also to dry uniformly over the whole wood. For this reason, as above-mentioned, when the wood which contains many water | moisture contents is the wood immediately after providing a nonflammable liquid, it can suppress that an active ingredient in a nonflammable liquid migrates.
As a result, it is possible to suppress the occurrence of unevenness in the incombustible effect of the incombustible wood.

Hereinafter, an embodiment of a wood drying apparatus according to the present invention will be described.
FIG. 1 is an explanatory diagram showing the internal structure of the wood drying apparatus according to the present embodiment.
As shown in FIG. 1, a wood drying apparatus 100 according to the present embodiment sends a housing part 1, a placement part 2 on which wood in the housing part 1 is placed, and hot air in a predetermined direction. The hot air flow part 3 and the hot air guide part 4 provided on the inner wall surface of the housing part 1 are provided.
In the wood drying apparatus 100, the wood W placed on the placement portion 2 can be efficiently dried by circulating hot air in the housing portion 1 in the direction of the arrow F1 so as to draw a circle. It becomes possible.

In the wood drying apparatus 100, the housing portion 1 includes a rectangular bottom portion 11, side wall portions 12 erected on each side of the bottom portion 11, and a ceiling portion 13 provided at the upper end of each side wall portion 12. , And a rectangular parallelepiped box shape.
In the housing part 1, one side wall part 12 (hereinafter also referred to as “first side wall part 12” for convenience) of the four side wall parts 12 has a door part D that can be opened and closed. That is, in the wood drying apparatus 100, the wood W that already contains a large amount of moisture and the dried wood W are carried out from the door portion D into the housing portion 1. Details of the first side wall 12 and the wood W will be described later.

In the wood drying apparatus 100, the hot air flow unit 3 is disposed between the wood W to be placed and the ceiling 13. Specifically, the hot air flow unit 3 is suspended from the lower surface of the ceiling 13.
The hot air flow section 3 includes a heater 31 suspended from the lower surface of the ceiling section 13, a circulation fan 32 suspended from the lower surface of the ceiling section 13 and arranged in parallel toward the heater 31, and the ceiling section 13. The heat retaining plate 33 is suspended from the lower surface by a wire and is disposed below the heater 31 and the circulation fan 32 so as to be substantially parallel to the ceiling portion 13.
Thus, although the hot air flow part 3 is a simple structure, it can flow hot air reliably and uniformly so that it may mention later.

  The heater 31 includes a plurality of branch pipes. Each branch pipe is composed of a straight portion 31a extending vertically and a spiral portion 31b disposed around the straight portion 31a, and heated steam flows through these portions. Thereby, the air around a branch pipe is heated efficiently and can be easily made into hot air.

As the circulation fan 32, a commercially available one is used, and it is possible to blow air in a predetermined direction.
Therefore, in the wood drying apparatus 100, the circulation fan 32 is arranged on one side of the heater 31 and the hot air is blown to the first side wall portion 12 described later by adjusting the blowing angle of the fan. .

FIG. 2 is a perspective view showing only the heat insulating plate of the wood drying apparatus according to the present embodiment.
As shown in FIG. 2, the heat insulating plate 33 has a plate shape having a plurality of rectangular through portions 33 a inside as viewed from above.
In the wood drying apparatus 100, by providing the heat retaining plate 33, the heater 31 can heat the air around the heater 31 more efficiently.
Moreover, since the heat retaining plate 33 is disposed below the heater 31 and the circulation fan 32 in substantially parallel to the ceiling portion 13, the air blown from the circulation fan 32 is straight toward the heater 31 without spreading in a fan shape. Can be guided efficiently.
Furthermore, since the heat retaining plate 33 has the through-hole 33a, it is possible to suppress the air around the heater 31 from being heated excessively, and the heat retaining plate 33 itself can be reduced in weight.

Returning to FIG. 1, in the hot air flow section 3, the circulation fan 32 blows air toward the heater 31. For this reason, the hot air warmed by the heater 31 is sent in the direction of the first side wall portion 12 by blowing air from the circulation fan 32.
Thus, in the wood drying apparatus 100, hot air sent from the hot air sending part 3 is blown onto the inner wall surface of the first side wall part 12.

In the wood drying apparatus 100, the hot air guide part 4 is provided in the inner wall surface of the door part D of the 1st side wall part 12 to which hot air is sprayed. Therefore, the door part D opens and closes in the state integrated with the hot air guide part 4 on the inner wall surface.
For this reason, there exists an advantage that the hot air guide part 4 does not get in the way at the time of carrying in or carrying out the timber.

FIG. 3 is a perspective view showing a part of the hot air guide part in the wood drying apparatus according to the present embodiment.
As shown in FIG. 3, in the wood drying apparatus according to this embodiment, a plurality of hot air guide portions 4 are provided on the inner wall surface of the door portion D of the first side wall portion 12 in the vertical and horizontal directions.

Here, the hot air guide part 4 is plate-shaped and has a structure in which the lower end is curved inward. That is, the surfaces of the plurality of hot air guide portions 4 attached to the door portion D of the first side wall portion 12 are all protruded inward of the housing portion 1 as it goes downward (the curvature decreases as it goes downward). Structure).
Thereby, after colliding with the first side wall part 12, the hot air descending along the first side wall part 12 is guided inward of the housing part 1 by the end part of the hot air guiding part 4.

In the first side wall portion 12, the hot air guide portion 4 (hereinafter also referred to as “upper hot air guide portion 4 a” for convenience) is attached to the door portion D via the passage portion 5. ing.
Specifically, the upper hot air guide portion 4a is configured such that the four corners of the upper hot air guide portion 4a are supported by the ribs 5a fixed to the door portion D, respectively. That is, the space formed by the upper hot air guide portion 4 a, the door portion D, and the rib 5 a corresponds to the passage portion 5.
Accordingly, a part of the hot air blown from the hot air flow part 3 to the first side wall part 12 is guided inward of the housing part 1 by the upper hot air guide part 4a, and the other passes through the passage part 5. Become.

In the first side wall portion 12, the hot air guide portion 4 (hereinafter also referred to as “lower hot air guide portion 4 b” for convenience) is attached to the door portion D without providing a passage portion. It has been.
Specifically, the lower hot air guide portion 4b has a configuration in which an upper portion is directly fixed to the door portion D and a lower portion is supported by a rib 5a fixed to the door portion D.
Therefore, sufficient space (passage part) for hot air to pass through is not formed between the lower hot air guide part 4b and the inner wall surface of the door part D.
Thereby, some hot air which passed the passage part 5 mentioned above is guided inward of the housing part 1 by the lower hot air guide part 4b.

  By these things, in the wood drying apparatus 100 according to the present embodiment, a part of the hot air is guided inward by the upper hot air guide part 4a, and the other hot air is guided inward by the lower hot air guide part 4b, Since the distinction of the upper and lower two stages of hot air is performed, the hot air can be circulated in two systems in the housing part 1. As a result, since the temperature in the housing part 1 becomes more uniform, the drying efficiency of the wood W can be further improved, and the wood W can be dried more uniformly.

Returning to FIG. 1, in the wood drying apparatus 100, the placement unit 2 is set on the upper surface of the bottom 11.
Here, the placement unit 2 is a place where the wood W containing a large amount of moisture to be dried is to be placed.
Further, the wood W may be a single piece of wood or a piece of wood consisting of a plurality of pieces of wood. From the viewpoint of efficiency, the wood W is preferably dried in the form of an aggregate of pieces of wood.
Furthermore, the wood W may be placed on the placement unit 2 via a pallet or a carriage, or may be placed directly.

FIG. 4 is a perspective view illustrating an example of an aggregate of pieces of wood placed on the placement unit in the wood drying apparatus according to the present embodiment.
As shown in FIG. 4, the aggregate of pieces of wood WS includes a spacer portion on which a plurality of bar-shaped spacers S are placed on a pallet P so as to be substantially parallel to each other, and a plurality of pieces of wood WS. It has a structure in which wood pieces arranged side by side in the width direction so as to be perpendicular to the longitudinal direction of the spacer S are alternately and repeatedly stacked so that the longitudinal direction is perpendicular to the longitudinal direction of the spacer S.
Accordingly, since the spacer S is provided between the upper and lower wooden pieces WS, a penetrating space is formed between the upper and lower wooden pieces WS and the left and right spacers S.

Here, since the aggregate | assembly of the piece of wood WS mounted in the mounting part 2 is a structure as mentioned above, along the longitudinal direction of the spacer S, air can pass in the direction of arrow F2. . For this reason, in the wood drying apparatus 100, the aggregate | assembly of the piece of wood WS can be mounted in the mounting part 2 so that the longitudinal direction of the spacer S may become parallel to the direction in which the circulation fan 32 blows hot air. preferable.
If it does so, since the passage route of air will be made in the aggregate | assembly of the piece of wood WS, the disturbance of the air circulation by mounting the aggregate of the piece of wood WS on the mounting part 2 will be suppressed.

Returning to FIG. 1, in the wood drying apparatus 100, a space is provided between the wood W placed on the placement portion 2 and the inner wall surface of the side wall portion 12.
As a result, hot air enters between the placed wood W (aggregate of pieces of wood WS) and the inner wall surface of the side wall portion 12, so that the circulation path of the hot air is sufficiently secured, and the hot air is more It becomes possible to circulate smoothly.
Further, it is possible to prevent the wood W from interfering with the side wall portion 12 when the wood W is carried in and out.

In the wood drying apparatus 100, a dry bulb thermometer 7 a and a wet bulb thermometer 7 b are attached to the side wall portion 12. The wet bulb temperature is measured through gauze communicating with the water charged in the container 7c.
That is, in the wood drying apparatus 100, the temperature in the housing part 1 is precisely managed by the dry bulb thermometer 7a and the wet bulb thermometer 7b.

In the wood drying apparatus 100, a plurality of exhaust ports 6 a and 6 b are provided in the side wall portion 12.
FIG. 5 is a cross-sectional view taken along line AA ′ of FIG.
As shown in FIG. 5, in the wood drying apparatus 100, the side wall part 12 (hereinafter also referred to as “second side wall part 12” for convenience) facing the first side wall part 12 provided with the hot air guide part 4. The wall has a plurality of exhaust ports (hereinafter referred to as “middle abdominal portion exhaust ports”) 6 a provided in the middle part for releasing hot air to the outside, and a plurality of exhaust ports (hereinafter referred to as “lower exhaust ports” provided in the lower part). ") 6b.

Here, the middle abdominal part exhaust port 6a is for discharging hot air from the middle part of the side wall part 12 to the outside of the housing part 1, and is mainly guided inward of the housing part 1 by the upper hot air guide part 4a. It corresponds to the heated air.
On the other hand, the lower exhaust port 6b is for discharging hot air from the lower part of the side wall part 12 to the outside of the housing part 1, and mainly the hot air guided inward of the housing part 1 by the lower hot air guide part 4b. It corresponds to.

  The middle abdominal part exhaust port 6 a and the lower exhaust port 6 b are both attached to an exhaust fan 9 provided on the upper surface of the ceiling part 13 via a pipe T. For this reason, the exhaust air in the housing part 1 can be exhausted quickly by forcibly releasing the hot air in the housing part 1 to the outside through the exhaust port using the exhaust fan 9.

Therefore, in the wood drying apparatus 100, the temperature in the housing part 1 is managed by the dry bulb thermometer 7a and the wet bulb thermometer 7b. For example, when the difference between the temperature indicated by the dry bulb thermometer 7a and the temperature indicated by the wet bulb thermometer 7b is reduced, the middle abdomen exhaust port 6a and the lower exhaust port 6b are opened, and the exhaust fan 9 causes the housing part 1 to open. The hot air inside is forcibly released outside.
On the other hand, when the temperature in the housing part 1 is lower than the setting, the middle abdomen exhaust port 6a and the lower exhaust port 6b are closed.

In the wood drying apparatus 100, the inclined plate 8 is attached to a connection portion between the ceiling portion 13 and the first side wall portion 12 so as to cover the connection portion. In this case, circulation of the hot air can be promoted by the inclined plate 8 guiding the hot air.
By the way, when there is no inclined plate 8, the angle formed between the ceiling portion 13 and the first side wall portion 12 is 90 °, so that the blown hot air may collide with the first side wall portion 12 and stay as it is. There is.
Similarly, the inclined plate 8 is attached to a connecting portion between the bottom portion 11 and the second side wall portion 12 so as to cover the connecting portion.
Further, the inclined plate 8 is attached to a contact portion between the bottom portion 11 and the door portion D so as to cover the contact portion. In this case, since the door portion D can be opened and closed, the inclined plate 8 is attached to the door portion D.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  In the wood drying apparatus 100 according to the present embodiment, the door part D that can be opened and closed is provided on the first side wall part 12, but the door part may be provided on the other side wall part 12.

In the wood drying apparatus 100 according to the present embodiment, the hot air flow unit 3 includes a heater 31, a circulation fan 32, and a heat retaining plate 33. If hot air can be flowed, these structures are provided. There is nothing to be limited to.
For example, the heater 31 includes a plurality of branch pipes, and each branch pipe includes a straight portion 31a extending vertically and a spiral portion 31b, but is not limited to this structure.
The heat retaining plate 33 has a plate shape having a rectangular through portion 33a in a top view, but is not limited to this structure.
The heat retaining plate 33 is not necessarily an essential configuration.

  In the wood drying apparatus 100 according to the present embodiment, the hot air guide unit 4 may be provided with a groove on the surface thereof. In this case, since the movement of the hot air in the lateral direction (horizontal direction) is suppressed by the groove, diffusion in the lateral direction can be further suppressed.

  In the wood drying apparatus 100 according to the present embodiment, the hot air guide portion 4 is provided on the inner wall surface of the door portion D of the first side wall portion 12, but the hot air guide portion is directly on the inner wall surface of the first side wall portion. May be provided.

  In the wood drying apparatus 100 according to the present embodiment, the hot air guide portions 4 are provided in two rows on the inner wall surface of the door portion D of the first side wall portion 12, but may be in one row. More than one row may be provided.

  In the wood drying apparatus 100 according to the present embodiment, the lower hot air guide portion 4b has a configuration in which an upper portion is directly fixed to the door portion D and a lower portion is supported by a rib 5a fixed to the door portion D. The upper part may be supported by a rib fixed to the door part D. However, it is preferable not to provide the passage portion 5 or to reduce the size as much as possible even if it is provided.

  In the wood drying apparatus 100 according to the present embodiment, the upper hot air guide portion 4a is configured such that the four corners of the upper hot air guide portion 4a are supported by the ribs 5a fixed to the door portion D, respectively. The hot air guide portion 4b is configured such that the four corners of the lower hot air guide portion 4b are supported by ribs 5a fixed to the door portion D, but the upper hot air guide portion 4a and the lower hot air guide portion 4b are partition plates. The structure supported by may be sufficient.

FIG. 6 is a perspective view showing a part of a hot air guide part in a wood drying apparatus according to another embodiment.
As shown in FIG. 6, in the wood drying apparatus which concerns on other embodiment, the hot air guide part 4 is provided with two or more up-down and right-and-left on the inner wall face of the door part D of a 1st side wall part.
And the partition plate 41 is attached between the hot air guide parts 4 adjacent to a horizontal direction (horizontal direction). In this case, since the movement of the hot air in the lateral direction (horizontal direction) is suppressed by the partition plate 41, the hot air can be reliably circulated in one direction.

The upper hot air guide portion 4 a is attached to the door portion D through the passage portion 51.
Specifically, the upper hot air guide portion 4a is configured such that both sides of the upper hot air guide portion 4a are supported by a partition plate 41 fixed to the door portion D. That is, the space formed by the upper hot air guide portion 4 a, the door portion D, and the partition plate 41 corresponds to the passage portion 51.
On the other hand, the lower hot air guide part 4b is attached to the door part D without the passing part 51 interposed therebetween.
Specifically, the lower hot air guide portion 4b is similarly configured such that both sides of the lower hot air guide portion 4b are supported by the partition plate 41 fixed to the door portion D. However, the passage portion 51 is not formed between the lower hot air guide portion 4b, the inner wall surface of the door portion D, and the partition plate 41.

  In the wood drying apparatus 100 according to the present embodiment, the temperature in the housing part 1 is managed by the dry bulb thermometer 7a and the wet bulb thermometer 7b, but the temperature measurement method is not limited to this.

In the wood drying apparatus 100 according to the present embodiment, the second side wall 12 is provided with a mid-gas exhaust 6a and a lower exhaust 6b for escaping hot air to the outside. There may be.
Moreover, although the exhaust fan 9 is provided in the upper surface of the ceiling part 13, it is not limited to this position, The outer surface of a side wall part may be sufficient.

In the wood drying apparatus 100 according to the present embodiment, a groove portion may be provided on the surface of the second side wall portion 12.
Drawing 7 is a figure showing the 2nd side wall part in the wood drying device concerning other embodiments.
As shown in FIG. 7, the second side wall portion 12a includes a plurality of vertically long grooves 121 at equal intervals on the surface.
In this case, since the hot air rises along the groove 121 and the movement of the hot air in the lateral direction is suppressed, the hot air can be reliably circulated in one direction.

  In the wood drying apparatus 100 according to the present embodiment, the inclined plate 8 is connected to the connecting portion between the ceiling portion 13 and the first side wall portion 12 and the connecting portion between the bottom portion 11 and the second side wall portion 12. Although it is attached so that it may cover, it is not necessarily essential.

In the wood drying apparatus 100 according to the present embodiment, a temperature sensor or a humidity sensor may be attached to the aggregate of pieces of wood WS shown in FIG.
FIG. 8 is a transparent top view for explaining the position of the sensor in the aggregate of pieces of wood drying apparatus according to another embodiment.
As shown in FIG. 8, in the aggregate of wood pieces, like the aggregate of wood pieces of the wood drying apparatus according to this embodiment described above, on the pallet, the bar-shaped spacers are spaced so as to be substantially parallel to each other. A plurality of spacer portions placed in parallel with each other, and a plurality of pieces of wood placed alternately in the width direction so that the longitudinal direction thereof is perpendicular to the longitudinal direction of the spacers. It is the structure which was repeated and laminated | stacked.
The sensor X such as a temperature sensor or a humidity sensor, for example, is positioned approximately at the middle in the vertical direction of the aggregate of pieces of wood, at the positions of both ends and the center of the aggregate of pieces of wood in the horizontal direction as shown in FIG. , Each provided.
In this case, since the state of the temperature and humidity in the vicinity of the wood piece at the time of drying can be managed, it is possible to suppress the occurrence of a situation such as cracking of the wood piece due to excessive drying.

The wood drying apparatus according to the present invention is suitably used for drying wood containing a lot of moisture, such as raw material or wood immediately after chemical treatment.
According to the wood drying apparatus according to the present invention, the drying efficiency is excellent, and the wood can be dried more uniformly.

DESCRIPTION OF SYMBOLS 1 ... Housing part 100 ... Wood drying apparatus 11 ... Bottom part 12, 12a ... Side wall part 121 ... Groove part 13 ... Ceiling part 2 ... Mounting part 3 ... Hot air feeding Flow part 31 ... Heater 31a ... Linear part 31b ... Helix part 32 ... Circulating fan 33 ... Heat insulating plate 33a ... Penetration part 4 ... Hot air guide part 41 ... Partition Plate 4a ... Upper hot air guide part 4b ... Lower hot air guide part 5, 51 ... Passing part 5a ... Rib 6a ... Middle abdomen exhaust port
6b ... Lower exhaust port (exhaust port)
7a ... Dry bulb thermometer 7b ... Wet bulb thermometer 7c ... Container 8 ... Inclined plate 9 ... Exhaust fan D ... Door part F1, F2 ... Arrow P ... Pallet S ... Spacer T ... Piping W ... Wood WS ... Wood piece X ... Sensor

Claims (8)

In a wood drying apparatus for drying moisture-containing wood,
A box-shaped housing part having a rectangular bottom part, side wall parts erected on each side of the bottom part, and a ceiling part provided at the upper end of each side wall part;
A placement part of the wood set on the upper surface of the bottom part;
A hot air flow section that is disposed between the wood placed on the placement section and the ceiling section, and sends hot air in a predetermined direction;
A plate-like hot air guide provided on the inner wall surface of the side wall to which the hot air is sprayed;
With
A wood drying apparatus in which the surface of the hot air guide part protrudes inward as it goes downward. The side wall has a door,
The wood drying apparatus according to claim 1, wherein the hot air guide portion is provided on an inner wall surface of the door portion.   An exhaust port for releasing hot air to the outside is provided on the inner wall surface of the side wall portion opposite to the side wall portion provided with the hot air guide portion, and the exhaust port can be opened and closed. 2. The wood drying apparatus according to 2.   The wood drying apparatus according to claim 3, wherein an exhaust fan for forcibly releasing the hot air to the outside is attached to the exhaust port. The hot air flow part comprises a hot air heater and a circulation fan,
The wood drying apparatus according to any one of claims 1 to 4, wherein the hot air heated by the hot air heater is sent in a predetermined direction by the circulation fan. On the inner wall surface of the side wall portion to which the hot air is blown, a plurality of the hot air guide portions are provided above and below,
The passage part for allowing a part of said hot air to pass through is provided between the hot air guide part provided on the upper side and the inner wall surface of the side wall part. The wood drying apparatus as described. On the inner wall surface of the side wall portion to which the hot air is blown, a plurality of the hot air guide portions are arranged in parallel in the lateral direction,
The wood drying apparatus according to any one of claims 1 to 6, wherein a partition plate is attached between the hot air guide portions. The wood contains an incombustible liquid,
The wood drying apparatus according to any one of claims 1 to 7, wherein non-combustible wood is obtained by drying.

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