JP2023066668A - Wood for combustion and method for manufacturing dried wood for combustion - Google Patents

Abstract

To provide wood for combustion which is easily ignited, hardly emits smoke with a burning odor, and has favorable combustion efficiency, and a method for manufacturing dried wood for combustion.SOLUTION: There is provided wood for combustion, comprising: a main body 1 that has a top end 1a and a bottom end 1b and is self-supporting; a vertical hole 2 that is formed in the top end 1a of the main body 1 and has a bottom part; a first horizontal hole 3 that is formed on a side surface of the main body 1 so as to extend to below the bottom part; a second horizontal hole 4 that is formed on a side surface so as to communicate with the vertical hole 2; and a ventilation hole that allows the first horizontal hole 3 and the bottom part to communicate with each other. The top end 1a and the bottom end 1b are flat surfaces parallel to each other, and the top end 1a has at least one of or two or more of top end grooves 6 traversing between the vertical hole 2 and the side surface.SELECTED DRAWING: Figure 1

Description

The present invention relates to a method for producing burning wood and burning dry wood.

Firewood is used for cooking and fireplaces in camping, but combustion wood with improved combustion efficiency compared to firewood has been developed. Conventionally, at the lower part of a columnar wooden body, a blind horizontal combustion hole is provided which opens at the outer surface of the wooden body and has a horizontal axis. discloses a wood for combustion provided with a plurality of inner vertical combustion holes that open at the upper end surface of the wood body and extend in the vertical direction to communicate with horizontal combustion holes at the lower end (for example, patent Reference 1).

JP 2018-123273 A

However, the wood for combustion described in Patent Document 1 has a problem that it is difficult to ignite and smoke smells like burning for a while at the beginning of combustion.

The present invention has been made in view of such problems, and an object of the present invention is to provide a burning wood which is easily ignited, hardly emits smoke with a burning smell, and has a good combustion efficiency, and a method for producing a dry burning wood. there is

In order to achieve the above object, the burning wood according to the present invention comprises a self-supporting body having an upper end and a lower end, a vertical hole formed in the upper end of the body and having a bottom, and a first horizontal hole formed to extend below the bottom; a second horizontal hole formed in the side surface so as to communicate with the vertical hole; and a ventilation hole thinner than the vertical hole and communicating the first horizontal hole and the bottom, characterized by having
The burning wood according to the present invention is used with the lower end placed on the installation surface. In use, an igniter is placed at the bottom of the well to ignite the igniter. The air flowing in from the first horizontal hole is sent to the ignition agent from below through the ventilation hole, and the air also flows in from the second horizontal hole. After ignition, air enters the interior through the ventilation hole and the second horizontal hole, and combustion gas is discharged upward through the vertical hole. For this reason, it is easy to ignite, less likely to produce smoke with a burning smell, and has good combustion efficiency.
The type of wood used for the main body may be hardwood or softwood.

In the wood for combustion according to the present invention, it is preferable that the upper end and the lower end are planes parallel to each other, and that the upper end has one or more upper end grooves crossing between the vertical hole and the side surface.
In this case, since the lower end is flat, it tends to be stable when placed on a flat installation surface. Cooking utensils such as pots and kettles can be placed on the upper end for heating. When the cooking utensil is placed on the upper end, the combustion gas rising up the vertical hole is discharged from the upper end groove, so that the cooking utensil can be efficiently heated without interrupting the discharge of the hot combustion gas.

In the wood for combustion according to the present invention, the vertical hole has a length of 1/3 or more and 2/3 or less of the height of the main body, and the second horizontal hole is formed above the first horizontal hole. Preferably, the lower portion extends to be lower than said bottom portion.
In this case, the combustion efficiency is particularly good, ignition is easy, and smoke with a burning smell is less likely to occur.
It is preferable that the wood for combustion according to the present invention has a valve member in the first lateral hole that can adjust the flow rate of air to the first lateral hole.
In this case, the air flow rate to the first lateral hole can be adjusted by the valve member. By suppressing the air flow rate to the first lateral hole, it is possible to raise a flickering blue flame called an aurora burn from the vertical hole. When the air flow to the first horizontal hole is stopped, smoke can be made to rise from the vertical hole and used for smoking.

Furthermore, the second horizontal hole may have a detachable plug.
In this case, by stopping the flow of air into the first horizontal hole with a valve member and plugging the second horizontal hole with a plug, internal combustion can be stopped and smoke can effectively rise from the vertical hole.
The wood for combustion according to the present invention preferably has a mark around the second horizontal hole for indicating the timing of closing the valve member.
The present inventors discovered that the closing timing of the valve member, which is effective for producing an aurora burn or smoke, can be measured by the extent to which combustion spreads in the second lateral hole. Therefore, by using a mark previously attached around the second lateral hole in accordance with the degree of progress, the valve member can be closed when the combustion progresses to the mark, and aurora burn and smoked smoke can be produced with a high probability.
The wood for combustion according to the present invention may have a ventilation hole penetrating to the lower end at the bottom of the upper end groove, and a lower end groove extending from the ventilation hole to the side surface at the lower end.
In this case, the combustion efficiency is even better, ignition is easy, and smoke with a burning smell is less likely to occur.

The method for producing dried wood for combustion according to the present invention is characterized by drying the wood for combustion according to the present invention at a temperature of 75° C. or less.
In the method for producing dried wood for combustion according to the present invention, by drying the wood for combustion according to the present invention at a temperature of 75° C. or less, good combustion wood with little cracking and scent and combustion components remaining is produced. can do. The produced dried wood for combustion is suitable for watching the aurora barn or producing smoked products using smoke.

ADVANTAGE OF THE INVENTION According to this invention, it is easy to ignite, and the manufacturing method of the dry wood for combustion and the manufacturing method of the wood for combustion which is easy to ignite, is hard to produce smoke smelling burnt, and is favorable in combustion efficiency can be provided.

1 is a perspective view of combustion wood according to an embodiment of the present invention; FIG. Figure 2 is a plan view of the main body of the burning wood of Figure 1; 1. (A) A front view and (B) a cross-sectional view taken along the line BB of the main body of the combustion wood of FIG. 1. FIG. FIG. 2 is (A) a plan view, (B) a bottom view, (C) a front view, and (D) a cross-sectional view taken along the line DD of the valve member of combustion wood of FIG. 1; It is (A) a top view of the wood for combustion of other embodiment of this invention, and (B) is a bottom view. FIG. 10 is a vertical cross-sectional view showing a modification of the valve member;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below based on the drawings.
The burning wood according to the embodiment of the present invention shown in FIGS. 1 to 4 has a vertically elongated rectangular parallelepiped or columnar body 1 having an upper end 1a and a lower end 1b and capable of standing on its own. The upper end 1a and the lower end 1b are planes parallel to each other. The burning wood has a vertical hole 2, a first horizontal hole 3, a second horizontal hole 4 and a ventilation hole 5 in the main body 1. - 特許庁
The vertical hole 2 has a circular cross section, and as shown in FIG. 3B, has a bottom 2a formed perpendicular to the upper end 1a of the main body 1 so that the center line passes through the center of the upper end 1a. The bottom 2a is parallel to the upper edge 1a and the lower edge 1b. The vertical hole 2 has a length of 1/3 or more and 2/3 or less, for example, 1/2 of the height of the main body 1 .

The first horizontal hole 3 has a circular cross section and is formed to extend below the bottom portion 2a perpendicular to the side surface of the main body 1 so that the center line passes through the vertical center line of the side surface of the main body 1. As shown in FIG. The first transverse hole 3 has approximately the same diameter as the longitudinal hole 2 .
The second lateral hole 4 has a circular cross section and is formed perpendicular to the side surface of the main body 1 so that the center line passes through the vertical center line of the side surface of the main body 1 . The second lateral hole 4 is positioned above the first lateral hole 3 such that its centerline is parallel to the centerline of the first lateral hole 3 . The first lateral hole 3 and the second lateral hole 4 are provided on the same side surface of the body 1 . The second lateral hole 4 is narrower than the first lateral hole 3 . The second horizontal hole 4 communicates with the vertical hole 2 and extends so that its lower portion is lower than the bottom portion 2a.
The ventilation holes 5 are plural, each narrower than the vertical hole 2, perpendicular to the center line of the first lateral hole 3 and the bottom part 2a, and communicate with the first lateral hole 3 and the bottom part 2a.
As shown in FIG. 2, the burning wood has three upper end grooves 6 which communicate with the vertical hole 2 at the upper end 1a and extend across the upper end 1a.

The wood for combustion has a valve member 7 in the first lateral hole 3 that can adjust the air flow rate to the first lateral hole 3 . As shown in FIG. 4, the valve member 7 has a columnar shape with an outer diameter substantially equal to the inner diameter of the first lateral hole 3, and has a ventilation hole 7a extending lengthwise to the vicinity of the center in the center of one end. there is The valve member 7 has a plurality of through holes 7b and 7c communicating with the ventilation hole 7a. The valve member 7 has an inclined surface 7d at one end which is inclined so that one end is thinner than the other end. The valve member 7 has projections 7e on its periphery. In addition, the valve member 7 may consist of a simple plug capable of opening and closing the first lateral hole 3 .
The burning wood has a plug 8 that can be attached to and detached from the second lateral hole 4 . The plug 8 consists of a cylinder with an outer diameter approximately equal to the inner diameter of the second lateral hole 4 . By closing the valve member 7 with the first lateral hole 3 and plugging the second lateral hole 4 with the plug 8, the combustion can be reliably terminated and the smoke can be made to rise.

As shown in FIG. 3A, the burning wood has marks 9a and 9b around the second horizontal hole 4 to indicate the timing of closing the valve member 7. As shown in FIG. Aurora burning and smoked smoke can be effectively made to appear by the timing of closing the valve member 7. - 特許庁The timing can be measured by the progress of the expansion due to the combustion in the second lateral hole 4 . The marks 9a and 9b consist of two circles concentric with the second lateral hole 4. As shown in FIG. The small circular mark 9a is a mark that indicates the effective closing timing of the valve member 7 to produce smoke. The large circle mark 9b is a mark indicating the closing timing of the valve member 7 effective for making the aurora burn appear. When the second lateral hole 4 expands to the smaller circular mark 9a due to combustion, the first lateral hole 3 is closed with the valve member 7 so that the smoked smoke can effectively emerge. A predetermined size is attached to the circumference. Also, when the second lateral hole 4 expands to the larger circular mark 9b due to combustion, if the first lateral hole 3 is closed with the valve member 7, the large circular mark 9b will be the second lateral hole so that the aurora burn will appear effectively. 4 is attached in a predetermined size. In one example, the diameter of the small circular mark 9a is 18 mm, and the diameter of the large circular mark 9b is 30 mm. The marks 9a and 9b may be made of any means such as branding, engraving, or stamping.
A method for producing dried wood for combustion according to an embodiment of the present invention comprises a method for drying the above-described wood for combustion at a temperature of 75° C. or less. Cherry, hickory, oak, beech, apple and the like are preferable as the type of wood used for combustion wood for smoking.

Next, the action will be explained.
The burning wood is used with the lower end 1b placed on an installation surface such as the ground or a fireplace. In use, an ignition agent is placed in the bottom portion 2a of the vertical hole 2 and the ignition agent is ignited. A commercially available product can be used as the ignition agent. The ignition agent may be of any type, such as solid, fibrous, and gel. The air flowing in from the first horizontal hole 3 is sent to the ignition agent from below through the ventilation hole 5, and the air also flows in from the second horizontal hole 4, so that the ignition agent is easily ignited and unnecessary smoke is hardly emitted at the time of ignition. After ignition, air enters the interior through the ventilation hole 5 and the second horizontal hole 4, and the combustion gas is discharged upward through the vertical hole 2. For this reason, it is easy to ignite, less likely to produce smoke with a burning smell, and has good combustion efficiency.

Since the lower end 1b is flat, it tends to be stable when placed on a flat installation surface. Cooking utensils such as pots and kettles can be placed on the upper end 1a for heating. When the cooking utensil is placed on the upper end 1a, the combustion gas rising up the vertical hole 2 is discharged from the upper end groove 6, so that the cooking utensil can be efficiently heated without interrupting the discharge of the hot combustion gas. Since the first horizontal hole 3 and the second horizontal hole 4 are formed on the same side surface of the main body 1, the burning wood can be safely held from the opposite side surface of the main body 1 at the beginning of burning.
The wood for combustion has a vertical hole 2 having a length of 1/3 or more and 2/3 or less of the height of the main body 1, and the second horizontal hole 4 is formed above the first horizontal hole 3 and has a bottom portion 2a at the bottom. Because it is stretched to be lower, it has particularly good combustion efficiency, is easy to ignite, and does not emit burning smoke.

The combustion wood can adjust the air flow rate to the first lateral hole 3 by the valve member 7 . By suppressing the flow rate of air to the first lateral hole 3, a flickering blue flame called an aurora burn can be raised from the vertical hole 2. - 特許庁When the air flow to the first lateral hole 3 is stopped, smoke rises from the vertical hole 2 and can be used for smoking. By adjusting the air flow rate with the valve member 7 at the beginning, middle or end of combustion, the force of the flame can be changed.
Further, by stopping the flow of air to the first horizontal hole 3 by the valve member 7 and plugging the second horizontal hole 4 by the plug 8, internal combustion can be stopped and smoke can be effectively raised from the vertical hole 2.

When burning wood is used for producing smoked food, the valve member 7 can be closed when the combustion progresses to the small circle mark 9a after ignition, and smoked smoke can be produced with a high probability. When burning wood is used for viewing an aurora burn, the valve member 7 is closed when the burning proceeds to the large circle mark 9b after ignition, and the aurora burn can be made to appear with a high probability.
In the method for producing the dried wood for combustion according to the embodiment of the present invention, by drying the wood for combustion according to the present embodiment at a temperature of 75° C. or less, there is little cracking, and good combustion with aroma and combustion components remaining is achieved. can be used to produce lumber.

As shown in FIG. 5, the combustion wood has a vent hole 20 extending through the bottom of the upper end groove 16 to the lower end 11b, and a lower end groove 21 extending from the vent hole 20 to the side surface of the lower end 11b. good too. The combustion wood has a cylindrical body 11 with vent holes 20 extending perpendicularly to the upper and lower ends 11a and 11b. The lower end groove 21 radially extends to the circular lower end 11b. Vent holes 20 are not formed at the positions of the upper end groove 16 and the lower end groove 21 extending toward the front.
When the air vent 20 is provided, the combustion efficiency is further improved, ignition is easy, and smoke with a burning smell is less likely to be generated. In one example, the diameter of vent 20 is 8 mm. It should be noted that the columnar body is easier to manufacture than the prismatic body, and is less likely to produce cinders at the four corners after combustion.

Also, as shown in FIG. 6, the valve member may have one large through-hole instead of having a plurality of through-holes 7b and 7c. The valve member 17 has a vent hole 17a extending in the longitudinal direction to the vicinity of the center at the center of one end. The valve member 17 has a through hole 17b communicating with the ventilation hole 17a. By adjusting the depth of insertion of the valve member 17 into the first lateral hole 3, the air flow rate to the first lateral hole 3 can be adjusted.

In the configuration of the wood for combustion of the above-described embodiment, a rectangular parallelepiped cherry wood with a width of 105 mm, a depth of 105 mm, and a height of 200 mm has a vertical hole with a diameter of 40 mm and a depth of 70 mm and a position 30 mm from the lower end. a first horizontal hole with a diameter of 30 mm, the bottom of which is located at the top, a second horizontal hole with a diameter of 15 mm, the center line of which is located at a position 70 mm from the top, a ventilation hole with a diameter of 13 mm, and equidistant therearound; 6 ventilation holes with a diameter of 8 mm are arranged at equal intervals, and a small circle with a diameter of 18 mm and a large circle with a diameter of 30 mm are marked around the second horizontal hole, and the upper end groove is Seven unformed burning woods (Samples 1-7) were prepared.
Also, three pieces of burning wood (Samples 8 to 10) having the same configuration and dimensions as the burning wood of Samples 1 to 7 were prepared except that they did not have the second horizontal hole and the large and small marks.
The woods for combustion of Samples 1 to 6, 8 and 9 were dried in a drying cabinet at 75° C. to a moisture content of 15% to prepare dried woods for combustion. Also, the woods for combustion of Samples 7 and 10 were dried in a drying cabinet at 100° C. until the moisture content reached 15% to prepare dried woods for combustion. An ignition agent was placed on the bottom of the vertical hole of the prepared 10 dry woods for combustion to ignite them, and a combustion experiment was conducted.

For the dried wood for combustion of Samples 1, 2, and 7, when the combustion progressed to the mark of the small circle, the first horizontal hole was closed with a valve member, and the second horizontal hole was closed with a plug. A sufficient amount of smoke came out of the shaft as smoking smoke. The smoke of Samples 1 and 2 had a peculiar scent of cherry trees, and continued to be emitted for 45 to 50 minutes after the first side hole and the second side hole were closed. Like Samples 1 and 2, the smoke of Sample 7 continued for 50 minutes after the first side hole and the second side hole were closed, but the odor was burning.
About 20 minutes after igniting the dried wood for combustion of Samples 3 and 4, when the combustion progressed to the large circle mark, the first horizontal hole was closed with a valve member, and a blue flame aurora burn was included. A flickering flame appeared for about 1 hour and 10 minutes, and the embers extinguished about 20 minutes after the flame was extinguished. There was no conspicuous smoke on the way, and it burned out in about 1 hour and 50 minutes after it was ignited.
For the dry wood for combustion of Samples 5 and 6, a flame appeared for about 1 hour and 10 minutes after being ignited, and the embers were extinguished about 20 minutes after the flame was extinguished. There was no conspicuous smoke on the way, and it burned out in about 1 hour and 30 minutes after it was ignited.
The dry wood for combustion of Samples 8-10 continued to emit a burning smell for about 20-25 minutes after it was ignited, then flames appeared for about 1 hour and 10 minutes, and after about 20 minutes after the flames went out, the embers were extinguished. .

1 main body 1a upper end 1b lower end 2 vertical hole 3 first horizontal hole 4 second horizontal hole
5 ventilation hole 2a bottom part 6 upper end groove 7 valve member 7a ventilation hole
7b, 7c through hole, 7d inclined surface, 7e protrusion, 8 plug, 9a small circle mark,
9b large circle mark, 11 main body, 11a upper end, 11b lower end, 16 upper end groove,
17 valve member, 17a vent hole, 17b through hole 17b, 20 vent hole,
21 bottom groove

Claims (8)

a self-supporting body having an upper end and a lower end;
a vertical hole formed in the upper end of the body and having a bottom;
a first lateral hole formed in a side surface of the main body to extend below the bottom;
a second horizontal hole formed in the side surface to communicate with the vertical hole;
a ventilation hole narrower than the vertical hole and communicating the first horizontal hole and the bottom,
Combustion wood, characterized by comprising: said upper end and said lower end are planes parallel to each other, and said upper end has one or more upper end grooves crossing between said vertical hole and said side surface;
Burning wood according to claim 1. The vertical hole has a length of 1/3 or more and 2/3 or less of the height of the main body, and the second horizontal hole is formed above the first horizontal hole and extends such that the lower portion is lower than the bottom portion. that
3. Combustion wood according to claim 1 or 2. Having a valve member in the first lateral hole that can adjust an air flow rate to the first lateral hole,
Burning wood according to claim 1, 2 or 3. Having a detachable plug in the second lateral hole,
5. Burning wood according to claim 4. having a mark for indicating the timing of closing the valve member around the second lateral hole;
Burning wood according to claim 4 or 5. having a ventilation hole penetrating to the lower end at the bottom of the upper end groove, and having a lower end groove extending from the ventilation hole to the side surface at the lower end;
Burning wood according to any one of claims 2 to 6. A method for producing dried wood for combustion, comprising drying the wood for combustion according to any one of claims 1 to 7 at a temperature of 75°C or less.

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