JP2006334913A - Rot proofing/ant proofing method for lumber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rot proofing/ant proofing method for lumber which can extend the life of the lumber by applying rot proofing/ant proofing treatment to the lumber. <P>SOLUTION: A vegetable organic fuel is burned in a combustion chamber to generate smoke, and the smoke is supplied into a smoking drying treatment chamber. The lumber stored in the chamber is dried by the smoke. Smoking treatment is carried out twice to obtain dried lumber with its cell structure opened. After that, the lumber is subjected to smoking drying treatment, and a chemical liquid having rot proofing and ant proofing effects is injected into the lumber with its structure opened. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for preserving and preventing ant processing of wood, and more particularly to an improvement technique for a method for preserving and preventing ant processing for wood after smoke treatment.

Wood is lightweight and easy to handle and transport. Moreover, wood has unique advantages such as being easy to process, having a beautiful appearance, and being familiar with the surrounding landscape and environment. Therefore, timber is not limited to private houses, and is used as a protective fence / wood fence for environmental facilities on roads and parks, for example. In addition, it is widely used for guide plate support frames, benches, monuments, observation decks, and so on. Thus, since wood is often used outdoors, it is necessary to take measures against antiseptic and ant protection.
For example, Patent Document 1 discloses a wood processing apparatus and processing method as antiseptic and ant-proofing measures for wood. That is, a closed edge wall hole in wood is selectively destroyed by making underwater shock waves generated by detonation of explosives in water enter. Next, the powder is infiltrated into the wood whose fractured wall holes have been destroyed. Accordingly, a method for improving heat insulation and nonflammability by allowing various liquids, resins, and powders to penetrate wood is disclosed.

JP 2003-1607 A

By the way, since the undried wood does not open in the structure, it does not easily penetrate into the wood even when the chemical solution is injected under pressure. That is, in the undried wood, the edged wall hole in the temporary wood conduit cannot be opened, and the action of keeping the moisture inside is working. For this reason, the chemical | medical solution containing an antiseptic | preservative and an anti-anticide cannot permeate | transmit the inside of a timber, and the problem that the effect of antiseptic | preservation and an anti-ant is not obtained so much occurred.
In addition, in the description of Patent Document 1, a closed edge wall hole in a temporary wood conduit is broken by hydrogen shock wave treatment, and powder is injected under pressure into the broken edge wall hole. . However, the invention described in Patent Document 1 destroys the wood structure.

The present invention has been made to solve the above-mentioned problems, and provides a method for preserving wood with an antiseptic and ant-repellent treatment capable of opening a framed wall hole in a temporary conduit of a wood structure and preserving and preserving ant. Objective.
Another object of the present invention is to provide an antiseptic and ant-treating method that can increase the impregnation rate of a chemical solution on wood after smoke treatment.

The invention according to claim 1 is a method of preserving and preventing ant processing of wood for preserving and protecting timber of wood, sending smoke into the smoke treatment chamber, and removing the wood stored in the smoke treatment chamber. An antiseptic and ant-proofing method for wood comprising a step of smoke treatment and a step of pressure-injecting a chemical into the wood after the smoke treatment.
Wood is not limited, and examples include cedar, pine, and beech.
For example, a smoke treatment apparatus for timber described in Japanese Patent Application Laid-Open No. 2003-11107 is used as a smoke treatment apparatus for treating wood with smoke. This smoke processing device is a device that circulates smoke generated in the combustion chamber into the drying chamber and returns it to the combustion chamber again. Thereby, wood can be dried uniformly.
The method and apparatus for pressure injection are not limited. The pressure injection may be, for example, wet or dry.
A chemical solution is injected under pressure into the smoked wood. A chemical solution having an antiseptic and ant-proof effect is used. The chemical solution is, for example, a pressure preserving wood preservative (trade name: Mokubo AAC40EC) manufactured by Dainippon Wood Preservation Co., Ltd.

In the antiseptic and ant processing method for wood according to claim 1, in the soot treatment device having a combustion chamber and a soot treatment chamber, for example, the plant organic fuel is burned in the combustion chamber to generate smoke. Let Next, this smoke is sent into the smoke processing chamber. And the 1st smoke treatment is performed about the wood accommodated in the smoke treatment chamber with the sent smoke. Thereby, it can dry to wood with a high Young's modulus. In addition, hemicellulose, which is the source of distortion, is eluted during drying, and individual cells are homogenized and stabilized. Thereafter, the second smoke treatment is performed on the wood. Thereby, the edge wall hole in the temporary conduit | pipe of a timber structure | tissue can be opened.
Thereafter, the wood with the opening of the edged wall hole is pressurized and injected using a chemical solution. The chemical solution to be injected under pressure is a wood preservative for pressure injection containing a preservative and an anti-anticide. After smoke treatment and opening the perforated wall hole in the temporary conduit of the wood structure, if a chemical solution is injected under pressure into the wood, preservatives and ant-proofing agents are deeply introduced into the wood after the smoke treatment. It becomes easy to penetrate the contained chemical. Since these effective components penetrate deep into the wood, the effective components will not flow out even when exposed to rain or the sun. As a result, the useful life of the wood can be extended.

  According to a second aspect of the present invention, in the smoke treatment, the wood in the smoke treatment chamber is kept at a temperature of 110 to 130 ° C. for 6 to 7 hours, and the smoke treatment chamber is thereafter treated. The process of lowering the temperature from 110 to 130 ° C. to room temperature, the process of raising the temperature of the smoke treatment chamber from room temperature to 80 to 90 ° C., and then the wood in the smoke treatment chamber to 1 to 80 to 90 ° C. The method for preserving and preventing rusting of wood according to claim 1, comprising a process of smoking treatment by holding for ˜2 hours.

In the antiseptic and ant processing method for wood according to claim 2, the smoke treatment is continuously performed twice on the wood. First, the wood in the smoke treatment chamber is heated from room temperature to a temperature of 110 to 130 ° C. and held at this temperature for 6 to 7 hours to smoke. Thereby, it can dry to wood with a moisture content of 20% or less.
Next, in the second round, the wood in the smoke treatment chamber is heated from room temperature to a temperature of 80 to 90 ° C. and kept at this temperature for 1 to 2 hours to carry out the smoke treatment. Thereby, the edge wall hole in the temporary conduit | pipe of a timber structure | tissue can be opened.

  According to a third aspect of the present invention, there is provided the wood according to the first or second aspect, wherein a chemical solution having a temperature lower than the temperature of the wood is pressurized and injected into the wood whose temperature after the smoke treatment is maintained at 55 ° C. or higher. This is an antiseptic / anticidal treatment method.

  In the wood antiseptic and ant-treating method according to claim 3, the temperature of the wood after the smoke treatment is maintained at 55 ° C. or more. This is because, if this temperature is maintained, the temporary conduit in the wood structure can be opened. If a wood preservative having a temperature lower than that of the wood is injected under pressure, the impregnation rate of the chemical into the wood can be increased.

According to a fourth aspect of the present invention, the chemical solution is a wood preservative containing a preservative and an antifungal agent. is there.
Use chemicals that have antiseptic and ant-proofing effects. The chemical solution is, for example, a pressure preserving wood preservative (trade name: Mokubo AAC40EC) manufactured by Dainippon Wood Preservation Co., Ltd. This pressure injection wood preservative is composed of N, N-didecyl-N-methylpoly (oxyethyl) ammonium propionate (DMPAP), which is a next-generation antiseptic / anticidal active ingredient, and a potency enhancer. As an azole wood preservative and a non-ester pyrethroid wood terminator.

  According to the method for preserving and protecting timber of wood according to claim 4, the preservative and the wood preservative containing the ant proofing agent are used as the chemical solution to be injected into the wood under pressure. If the above-mentioned chemical solution is injected under pressure into wood in which the perforated wall hole in the tissue is opened by smoke treatment, the inside of the wood can be deeply penetrated. Thereby, the wood by which antiseptic | preservation and the ant-proof process were improved can be obtained.

According to this invention, in the soot processing apparatus having the combustion chamber and the soot processing chamber, first, the plant organic fuel is burned in the combustion chamber to generate smoke. Next, this smoke is sent into the smoke processing chamber. And the 1st smoke treatment is performed about the wood accommodated in the smoke treatment chamber with the sent smoke. Thereby, it dries to the wood with a high Young's modulus. That is, the individual cells of the wood become uniform and stabilized, increasing the strength.
Next, the second smoke treatment is performed on the wood after the first smoke treatment. Thereby, the edge wall hole in the temporary conduit | pipe of a timber structure | tissue can be opened.
After that, a chemical solution is injected under pressure into the wood whose opening in the marginal wall is open. The chemical solution to be injected under pressure is a pressure-injecting wood preservative having antiseptic and ant-proofing effects. After smoke treatment to open a wall hole in the temporary conduit of the wood structure, when a wood preservative is injected under pressure, a chemical solution that has antiseptic and ant-preventive action deeply inside the wood after smoke Easy to penetrate. Since these effective components penetrate deep into the wood, the effective components are not washed away even when exposed to rain or the sun. As a result, the useful life of the wood can be extended.

An embodiment of the present invention will be described below with reference to FIGS.
First, a smoke treatment apparatus for wood 11 (cedar) according to the present embodiment will be described with reference to FIGS. 2 and 3. The soot treatment device has a soot treatment chamber 2 and a combustion chamber 3.
The combustion chamber 3 is composed of a defined chamber, and a heat source generator (not shown) is provided in this chamber.
A partition wall 10 is provided between the combustion chamber 3 and the smoke processing chamber 2. Electronic control dampers 14 and 18 are disposed above and below the partition wall 10.
One end side of the soot processing chamber 2 is connected to the combustion chamber 3 via the partition wall 10. Further, a carry-in entrance 6 through which the wood 11 for drying is carried in and out of the smoke processing chamber 2 is provided on the other end side. The soot processing chamber 2 forms a gradient so that the ceiling 1 becomes higher as it moves away from the combustion chamber 3. In this configuration, smoke generated in the combustion chamber 3 is sent from the combustion chamber 3 to the carry-in port 6 along the ceiling 1.
A plurality of smoke pipes 15 for circulating the smoke from the upper part to the lower part are provided on the side wall of the soot processing chamber 2 with a predetermined interval. At the lower part of these smoke pipes 15, there are respectively provided blower fans 17 for convectioning the smoke sent from the upper part upward from below.
Further, a temperature sensor for sensing the temperature in the smoke processing chamber 2 is provided at the center of the side wall of the smoke processing chamber 2. That is, a temperature sensor 21 is provided to control the opening and closing of the electronic dampers 14 and 18 in order to keep the temperature in the smoke processing chamber 2 constant.

Next, the soot processing method of the cedar 11 in the soot processing apparatus will be described.
First, a cedar 11 having a width of 70 mm, a length of 150 mm, and a height of 12 mm is prepared. Then, the cedar 11 is placed on the carriage 5 and is carried into the soot processing chamber 2 from the carry-in entrance 6 of the soot processing chamber 2. Next, the door 4 of the carry-in port 6 is closed to seal the inside of the smoke processing chamber 2. Thereafter, the plant organic fuel is burned by a heat source generator (not shown) to generate smoke. The generated smoke is sent into the smoke processing chamber 2 from the upper damper 14 provided in the partition wall 10. And the sent smoke is sent from the combustion chamber 3 toward the carry-in port 6 along the ceiling 1 provided with the gradient. Smoke to the ceiling 1 is sent from the upper part to the lower part through the smoke pipe 15. A part is sent into the smoke processing chamber 2 by the blower fan 17. The other part flows along the lower side and is returned to the combustion chamber 3 via the lower damper 18 provided in the partition wall 10. Furthermore, the temperature sensor 21 is set so that the inside of the smoke processing chamber 2 becomes an appropriate temperature. That is, the electronic dampers 14 and 18 provided in the partition wall 10 are operated to replenish moisture by the spray nozzle 23 installed in the upper portion of the smoke treatment chamber 2. Alternatively, when the chimney 24 is installed in the vicinity of the untreated timber and the internal pressure in the smoke processing chamber 2 rises, the exhaust valve 25 below the chimney 24 can be operated to control the internal pressure to be constant. . Thereafter, the temperature in the smoke treatment chamber is brought to room temperature.
The temperature at which the cedar 11 is dried in the soot processing chamber 2 is set as follows. That is, as shown in FIG. 1, the temperature is managed using a temperature sensor 21 provided in the smoke processing chamber 2. Specifically, in the first time, the wood in the smoke treatment chamber is heated from room temperature to a temperature of 110 to 130 ° C., and this temperature range is maintained for 6 to 7 hours and heated. Thereby, it can dry to wood with a moisture content of 20% or less, and the Young's modulus of the cedar 11 can be improved. That is, the hemicellulose that is the source of distortion is eluted during drying, and the individual cells of the cedar 11 are made uniform and stabilized. In addition, when undried pine is used, a large amount of spear flows out after the planar processing. However, by performing the smoke treatment, the essential oil component of the volatiles volatilizes, so that the resin component is solidified and the outflow of the ani can be suppressed. Thereafter, the temperature in the smoke treatment chamber is brought to room temperature.
Next, in the second soot treatment, the cedar 11 in the soot treatment chamber is heated from room temperature to a temperature of 80 to 90 ° C. and kept at this temperature for 1 to 2 hours to carry out the soot treatment. Thereby, the edge wall hole in the temporary conduit | pipe of a timber structure | tissue can be opened. Thereafter, the wood after the smoke treatment is kept at 55 ° C. or higher.

Next, the pressure injection device will be described. As the pressure injection device, one that is pressure-injected into general wood 11 is used. The pressure injection device is provided with a cylindrical drug can. This medicine can is provided with a self-recording pressure gauge for measuring the pressure at the time of pressure injection. And the canister can take in the cart on which the wood 11 is placed. The medicine can is provided with an exhaust port for evacuating the inside of the can. Around the medicine can, a chemical solution tank storing a chemical solution to be injected into the wood 11 is provided.
Next, a method for pressurizing and injecting a chemical into the smoked and dried cedar 11 will be described. The pressure injection is performed according to JIS A 9002 (pressurizing preservative method for wood).
First, the cedar 11 subjected to the smoke treatment is prepared, and the impregnation rate of the cedar 11 is measured. Then, the cedar 11 is carried into the pouring can of the pressure injection device in a state where the carriage is placed. Then, the inside of the injection can is sealed, and the inside of the injection can is evacuated at a reduced pressure of 0.08 MPa or more. Next, the chemical solution is filled from the chemical solution tank into the injection can through the flow pipe. Then, pressure is injected into the cedar 11 while applying pressure (for example, 0.4 to 2.2 MPa) to the chemical solution. The temperature of the chemical solution is about 20 ° C. And a chemical | medical solution is pressure-injected into the wood hold | maintained at the temperature of 55 degreeC or more.
After the pressure injection, post-evacuation (reduced pressure of 0.08 MPa or more) is performed to remove the chemical solution in the injection can. And it ventilates and takes in air in a medicine can. After the pressure injection treatment, a curing process for fixing the components of the injected chemical solution in the wood is performed. Thereby, about the cedar 11 by which the smoke process was carried out, the chemical | medical solution inject | poured into pressure penetrates deeply in the structure | tissue of the cedar 11. Finally, the cedar 11 injected under pressure from the hermetically sealed canister is carried out in a state of being placed on the carriage.
The said chemical | medical solution uses what has antiseptic | preservative action | The chemical solution is, for example, a pressure preserving wood preservative (trade name: Mokubo AAC40EC) manufactured by Dainippon Wood Preservation Co., Ltd. This preservative wood preservative for pressure injection is mainly composed of N, N-didecyl-N-methylpoly (oxyethyl) ammonium propionate (DMPAP), which is a next generation antiseptic / anticidal substance, and a potency enhancer. As an azole wood preservative and a non-ester pyrethroid wood terminator.
As a result, after the wood 11 is smoked, the pressure preserving wood preservative is pressure injected into the wood. As a result, it is possible to provide wood having antiseptic / anticidal effects. This wood can be maintained for a long period of time in any natural environment, whether in the soil, in water, or in the sea. Parks, roads, rivers It can also be used for facilities such as harbors.

It is a graph which shows the relationship between the time at the time of the smoke treatment of the wood which concerns on one Example of this invention, and temperature. It is a top view which shows the structure of the soot processing apparatus of the wood which concerns on one Example of this invention. It is a side view which shows the structure of the soot processing apparatus of the wood which concerns on one Example of this invention.

Explanation of symbols

2 Smoke treatment room,
11 Wood.

Claims (4)

A method for preserving and protecting timber by preserving and treating timber,
A process of sending smoke into the smoke treatment chamber and treating the wood stored in the smoke treatment chamber;
A method for preserving and preserving timber for wood, comprising the step of pressure-injecting a chemical into the wood after the smoke treatment. The soot treatment is a process in which the wood in the soot treatment chamber is kept at a temperature of 110 to 130 ° C. for 6 to 7 hours and smoke treated,
Thereafter, the process of lowering the temperature of the smoke processing chamber from 110 to 130 ° C. to room temperature,
Next, the process of raising the temperature of the smoke processing chamber from room temperature to 80 to 90 ° C.,
Thereafter, the wood in the soot treatment chamber is kept at a temperature of 80 to 90 ° C. for 1 to 2 hours and smoke treated,
The method for preserving and preserving ant for wood according to claim 1.   The method for preserving and preserving wood according to claim 1 or 2, wherein a chemical solution having a temperature lower than the temperature of the wood is pressurized and injected into wood having a temperature after the smoke treatment of 55 ° C or higher.   The said chemical | medical solution is a wood preservative containing antiseptic | preservative and an ant preventive agent, The antiseptic | preservation / anticide treatment method of wood of any one of Claims 1-3.

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