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Preparing method for carbonized wood

A technology of carbonizing wood and wood, which is applied in the direction of charcoal burning/burning, etc., to achieve the effect of simple and reasonable preparation process, excellent decorative performance, and beautiful texture

Inactive Publication Date: 2016-03-09
GUILIN RONGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no production process that uses southern pine as the main raw material to prepare carbonized wood.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The preparation method of carbonized wood comprises the following steps:

[0016] 1) Place the slash pine wood in a drying kiln. The temperature in the kiln is raised to 100°C at a rate of 20°C / min, and then to 140°C at a rate of 6°C / h. Moisture content reduced to 3%;

[0017] 2) heat up to 210°C and keep warm for 2 hours;

[0018] 3) Subsequently, the temperature in the drying kiln drops below 100°C, water vapor replaces the air and fills the entire drying kiln, so that the moisture content of the wood rises to 8%, and after stabilization, the temperature is lowered and cooled to produce carbonized wood.

Embodiment 2

[0020] The preparation method of carbonized wood comprises the following steps:

[0021] 1) Put the long-leaf pine wood in a drying kiln. The temperature in the kiln is raised to 100°C at a rate of 15°C / min, and then to 140°C at a rate of 5°C / h. The moisture content of wood is reduced to 4%;

[0022] 2) heat up to 190°C and keep warm for 2.5 hours;

[0023] 3) Subsequently, the temperature in the drying kiln drops below 100°C, water vapor replaces the air and fills the entire drying kiln, so that the moisture content of the wood rises to 10%, and after stabilization, the temperature is lowered and cooled to obtain carbonized wood.

Embodiment 3

[0025] The preparation method of carbonized wood comprises the following steps:

[0026] 1) Put the jack pine wood in a drying kiln. The temperature in the kiln is raised to 100°C at a rate of 22°C / min, and then to 140°C at a rate of 8°C / h. The moisture content of wood is reduced to 1%;

[0027] 2) heat up to 205°C and keep warm for 3 hours;

[0028] 3) Subsequently, the temperature in the drying kiln drops below 100°C, and water vapor replaces the air to flood the entire drying kiln, so that the moisture content of the wood rises to 6%. After stabilization, the temperature is lowered and cooled, and the carbonized wood is obtained.

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Abstract

The invention discloses a preparing method for carbonized wood. The preparing method includes the following steps that southern pine wood is placed into a drying kiln, the temperature in the kiln is increased to 100 DEG C at the speed of 15-25 DEG C / min and increased to 140 DEG C at the speed of 4-8 DEG C / h, during temperature rising, steam is sprayed in a spot manner intermittently, and therefore the water content of the wood is reduced to 1-4%; the temperature is increased to 190-212 DEG C, and heat preservation is conducted for 1-3 hours; then the temperature is reduced to be lower than 100 DEG C, steam is used for replacing air to be fully charged into the whole drying kiln, so that the water content of the wood is increased to 6-10%, after stabilization is achieved, the temperature is reduced for cooling, and therefore the carbonized wood is prepared. The preparing method is a technology used for producing carbonized wood and is specially used for development of southern pines, stability and corrosion resistance of the prepared carbonized wood are greatly improved, texture is attractive and elegant, and decoration performance is good.

Description

technical field [0001] The invention relates to a preparation method of carbonized wood. Background technique [0002] Carbonized wood refers to the wood obtained by pyrolysis treatment of wood with high temperature and high pressure for a long time. The high-temperature-treated carbonized wood has prominent texture, luxurious color and woody aroma, and is a noble decorative material. Carbonized lignin is known as physical "preservative wood", also known as heat-treated wood. Since carbonized wood is homogeneously carbonized at high temperature without any chemical agent, the surface of the wood has a dark brown aesthetic effect, and has anti-corrosion and anti-biological attack effects. Its moisture content is low, it is not easy to absorb water, The material is stable, not deformed, completely degreased without grease, good heat insulation performance, simple construction, convenient brushing, and no special smell. It is an ideal indoor and sauna material and has become ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M1/06
CPCB27M1/06
Inventor 佘延英
Owner GUILIN RONGTONG TECH CO LTD
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