JP2009269389A - Method of manufacturing functional lumber by heating decompression and vibration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate unevenness and enhance performance in impregnation of a medical liquid into noninflammable lumber, and to recycle the used noninflammable lumber. <P>SOLUTION: This method includes: a machining method for improving performance or impregnation of a liquid into lumber by heating, decompression, compression, vibration and impact, the liquid essentially consisting of ammonium sulfate that is primarily used as manure for agricultural produce. Also it includes: improvement of performance with a double structure using ceramic, silicon and water glass in fine powder or particles by secondary machining; and recycling of the used noninflammable lumber as manure for agricultural produce through pulverization. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a multifunction of wood by liquid injection of wood, shape stability, and primary processing and secondary processing of chemical processing.

  As a method for imparting multiple functions to wood, it is common to use permeable wood and inject a chemical solution. The main products could not be processed other than a small number of products such as antiseptic wood and non-combustible wood. As a reason, for example, an epoxy resin or the like cannot be used because of its two-component property due to the usable time. It is possible by secondary processing.

  Permeability, such as a non-permeable cedar core material, is imparted by drying at a high temperature a sheet material with a high moisture content of about 30 mm to about 110 degrees to 150 degrees.

  Transparency is imparted in a short time, such as a non-permeable cedar core material, by placing it in a pressure vessel such as a dried plate and heating and decompressing at 110 to 150 degrees.

  Generally, at room temperature, the wood is depressurized and the air inside the wood is extracted, but when it is in a vacuum state, moisture remaining inside the wood evaporates, and the wood is cooled by taking the heat of vaporization, The non-permeable portion of the air cannot be removed, affecting the injection.

  By heating and depressurizing, cooling with the heat of vaporization due to moisture inside the wood is eliminated, and gas injection due to vaporization of the air and moisture inside the wood is eliminated, thereby improving liquid injection.

  In the heating and decompression step, the heating and pressurization step, the room temperature decompression step, and the room temperature pressurization step, the decompression and pressurization inside the wood are promoted by directly applying vibration and impact.

  There are a wide variety of chemicals to be injected to give functions to wood, and there are many characteristics. It is necessary to change the injection method depending on the chemicals. Since the current technology is a room temperature decompression and pressurization method, problems such as insufficient performance of non-combustible wood occur, and production is impossible, so an injection method according to the drug is necessary.

  There are various types of drugs to be injected, such as substances that do not change by heating, substances that change by heating, substances that react chemically, substances that dissolve in water, solidify and crystallize when cooled, so the injection method must also be changed.

  An aqueous solution such as boric acid is mainly used as a chemical method for producing non-combustible wood, but the wood conduit is clogged because crystallization starts because the wood is depressurized and cooled. Due to this phenomenon, the entire system cannot be injected, resulting in insufficient performance.

  In order to prevent the crystallization of the drug, it is necessary to heat and depressurize the wood in advance to remove air and moisture from the wood and put it in a heated state. The chemical solution to be injected is preheated to 40 ° to 50 ° C. and injected and pressurized, so that crystallization is prevented and clogging does not occur and can be injected into the whole wood.

  Alcohol that is solidified, gelled, or vaporized by heating cannot be heated under reduced pressure.

  The chemical solution that reacts with heating can be injected by heating and depressurizing the wood, extracting air and moisture inside the wood, cooling with a cooling device, and then injecting to a temperature that does not react.

  In chemical processing of wood, chemicals react chemically, and there are many substances that solidify or gelate and cannot be prepared. Therefore, by chemically processing wood, diversification of chemically processed wood can be achieved.

  Ammonium sulfate-injected incombustible wood, a fertilizer for agricultural products that is less harmful to the environment, can be reused because processed waste and used incombustible wood can be used as fertilizer for agricultural products by grinding the wood. Many ammonium sulfate incombustible liquids cannot be reused as fertilizer because they contain many chemical substances that do not chemically react to improve performance. Only the surface layer portion of the injected ammonium sulfate wood can be improved and reused by secondary processing of silicon, ceramic, and glass systems.

  Processing of non-combustible wood using ammonium sulfate

Process

(1) Place wood in a pressurized container (2) Heat and depressurize wood (3) Pour heated ammonium sulfate aqueous solution into the container.
(4) Pressurization-Drying the injected wood (secondary processing)
(5) Place dried wood in a container.
▲ 6 ▼ Depressurization ▲ 7 ▼ Silicone and ceramic-based incombustible liquids are injected into the surface layer. ▲ 8 ▼ Drying

  A relatively large substance, for example, a fine powder of several microns, is formed by mechanically wrinkling a plate material having a thickness of from ○ mm to 10 mm and applying innumerable cracking. By laminating laminated wood that has been injected with ceramic-based and fine-particle water-glass-based and silicon-based incombustible materials onto the surface of the incombustible wood into which ammonium sulfate has been injected, the heat output is increased and the incombustibility is further increased.

Schematic of wood storage device in pressure vessel and heating and decompression vibration and impact device

Explanation of symbols

▲ 1 ▼ Schematic diagram of pressure vessel and heat insulating material for heating and decompression ▲ 2 Bogie frame ▲ 3 Wood storage container with heat insulating material ▲ 4 ▼ Storage container open / close lid ▲ 5 ▼ Heating heater ▲ 6 ▼ Cooling pipe ▲ 7 ▼ Heat conduction aluminum corrugated plate ▲ 8 High-pressure air vibration and impact device ▲ 9 ▼ Bar material ▲ 10 ▼ Wood ▲ 11 ▼ Water supply / drain port and pipe ▲ 12 ▼ Wood fixing band ▲ 13 ▼ Vibration plate ▲ 14 ▼ Wood fixing Board

Claims (9)

  Improving the permeability of wood with high-temperature dry air   Depressurization method inside wood by high temperature heating and decompression of wood   Method of heating and depressurizing the inside of wood by vibration and impact, and heating and pressurizing method for directly giving vibration and impact   Injection method by high temperature heating and decompression inside wood and heating liquid pressurization   Injection method of room temperature liquid with room temperature wood   Liquid reaction method by heating   Reaction injection method with multiple liquids   Non-combustible wood processing waste and method for producing non-combustible wood for reuse after use   How to make non-combustible wood with multiple wood structures

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