Production processing method of homogeneous carbonized wood of paulownia wood

Abstract

The invention relates to a production processing method of homogeneous carbonized wood of paulownia wood. The production processing method comprises the following steps of cutting and sawing, degreasing, drying, re-damping, stacking, feeding into a kiln, temperature rising, carbonizing, temperature lowering, and delivery out of the kiln. The production processing method has the beneficial effects that firstly the paulownia wood is degreased, so good foundation is laid for the homogeneous carbonizing; when the wood is fed into the kiln, the wood is coated by kaolin, air is completely isolated, and the uniform carbonizing effect is realized; after the kiln is sealed, the carbonizing temperature is integrally lowered, the carbonizing time is extended, the uniform carbonizing of the paulownia wood from exterior to exterior is guaranteed, and all parts of the paulownia wood have the good moisture absorbing property, size stability, mechanical property, anti-corrosive property, hardness and compressive strength, adhesion property, and surface coating property, especially same color property; by improving the degreasing method, the carbonizing auxiliary material, the carbonizing temperature and the carbonizing time, the carbonized wood can reach better homogenous effect; the adhesion effect is improved, and the application value and economic benefits of a product are increased.

Description

technical field

[0001] The invention belongs to the technical field of forestry product processing, in particular to a production and processing method of homogeneous carbonized paulownia wood. Background technique

[0002] Carbonized wood is to carbonize wood under high temperature without any chemical agent, so that its nutrients are destroyed, so it has better anti-corrosion and insect-proof functions. Because its water-absorbing functional group hemicellulose is reorganized, the product has better physical properties.

[0003] Carbonized wood is a real green and environmentally friendly product. Although the product has anti-corrosion and insect-proof properties, it does not contain any harmful substances. Animals and the environment have any negative impact; the surface of the charred wood has an aesthetic effect of primary color, yellow, brown or dark brown, and has anti-corrosion and anti-biological attack effects. Its moisture content is low, it is not easy to absor...

Examples

Embodiment 1

[0028] Cut and saw 10m3 paulownia wood early wood into a wood with a length of 100cm and a thickness of 3cm; then immerse it in a 20% lime aqueous solution and boil it on a low fire, boil it after 3 hours, then boil it continuously on a high fire for 2 hours, and then Rinse in boiling water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 72°C, and spray water vapor into the steam oven to make it saturated, and then degrease the degreased paulownia Put the wood into the steam oven to fully absorb water. After 25 hours, the paulownia wood will absorb water and reach saturation, then stop spraying water vapor, adjust the temperature in the steam oven to 66°C, keep the kiln for 12 hours, and then open the vent hole to exhaust air , and gradually increase the temperature in the steam oven to 84°C, and dehydrate for 3 hours; repeat this twice, then check the moisture content of the wood, and the moisture content is 6.0%; then move the dried ...

Embodiment 2

[0032] Cut and saw 10m3 paulownia wood early wood into a wood with a length of 200cm and a thickness of 4cm; then immerse it in a 20% lime aqueous solution and boil it on a low fire, boil it after 3 hours, then boil it continuously for 2.5 hours on a high fire, and then Rinse in boiling water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 73°C, and spray water vapor into the steam oven to make it saturated, and then degrease the degreased Paulownia Put the wood into the steam oven to fully absorb water. After 27 hours, the Paulownia wood will absorb water to a saturated state, then stop spraying water vapor, adjust the temperature in the steam oven to 67°C, keep the kiln for 13 hours, and then open the vent hole to exhaust air , and gradually increase the temperature in the steam oven to 85°C, and dehydrate for 4 hours; repeat this 3 times, then check the moisture content of the wood, and the moisture content is 6.4%; then move the dr...

Embodiment 3

[0036] Cut and saw 10m3 paulownia wood early wood into a length of 300cm and a thickness of 5cm; then immerse in a 20% lime aqueous solution and boil it on a low fire, boil it after 2.5 hours, then boil it on a high fire continuously for 3 hours, and then Rinse in boiling clean water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 74°C, and spray water vapor into the steam oven to make it saturated, and then degrease the degreased paulownia Put the wood into the steam oven to fully absorb water. After 29 hours, the paulownia wood absorbs water to reach saturation, then stop spraying water vapor, adjust the temperature in the steam oven to 68°C, keep the kiln for 14 hours, and then open the vent hole to exhaust air , and gradually increase the temperature in the steam oven to 86°C, and dehydrate for 5 hours; repeat this 4 times, then check the moisture content of the wood, and the moisture content is 7.5%; then move the dried paulownia ...

technical field

[0001] The invention belongs to the technical field of forestry product processing, in particular to a production and processing method of homogeneous carbonized paulownia wood. Background technique

[0002] Carbonized wood is to carbonize wood under high temperature without any chemical agent, so that its nutrients are destroyed, so it has better anti-corrosion and insect-proof functions. Because its water-absorbing functional group hemicellulose is reorganized, the product has better physical properties.

[0003] Carbonized wood is a real green and environmentally friendly product. Although the product has anti-corrosion and insect-proof properties, it does not contain any harmful substances. Animals and the environment have any negative impact; the surface of the charred wood has an aesthetic effect of primary color, yellow, brown or dark brown, and has anti-corrosion and anti-biological attack effects. Its moisture content is low, it is not easy to absor...

Examples

Embodiment 1

[0028] Cut and saw 10m3 paulownia wood early wood into a wood with a length of 100cm and a thickness of 3cm; then immerse it in a 20% lime aqueous solution and boil it on a low fire, boil it after 3 hours, then boil it continuously on a high fire for 2 hours, and then Rinse in boiling water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 72°C, and spray water vapor into the steam oven to make it saturated, and then degrease the degreased paulownia Put the wood into the steam oven to fully absorb water. After 25 hours, the paulownia wood will absorb water and reach saturation, then stop spraying water vapor, adjust the temperature in the steam oven to 66°C, keep the kiln for 12 hours, and then open the vent hole to exhaust air , and gradually increase the temperature in the steam oven to 84°C, and dehydrate for 3 hours; repeat this twice, then check the moisture content of the wood, and the moisture content is 6.0%; then move the dried ...

Embodiment 2

[0032] Cut and saw 10m3 paulownia wood early wood into a wood with a length of 200cm and a thickness of 4cm; then immerse it in a 20% lime aqueous solution and boil it on a low fire, boil it after 3 hours, then boil it continuously for 2.5 hours on a high fire, and then Rinse in boiling water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 73°C, and spray water vapor into the steam oven to make it saturated, and then degrease the degreased Paulownia Put the wood into the steam oven to fully absorb water. After 27 hours, the Paulownia wood will absorb water to a saturated state, then stop spraying water vapor, adjust the temperature in the steam oven to 67°C, keep the kiln for 13 hours, and then open the vent hole to exhaust air , and gradually increase the temperature in the steam oven to 85°C, and dehydrate for 4 hours; repeat this 3 times, then check the moisture content of the wood, and the moisture content is 6.4%; then move the dr...

Embodiment 3

[0036] Cut and saw 10m3 paulownia wood early wood into a length of 300cm and a thickness of 5cm; then immerse in a 20% lime aqueous solution and boil it on a low fire, boil it after 2.5 hours, then boil it on a high fire continuously for 3 hours, and then Rinse in boiling clean water for 0.5 hours, then rinse in clean water; then adjust the temperature in the steam oven to 74°C, and spray water vapor into the steam oven to make it saturated, and then degrease the degreased paulownia Put the wood into the steam oven to fully absorb water. After 29 hours, the paulownia wood absorbs water to reach saturation, then stop spraying water vapor, adjust the temperature in the steam oven to 68°C, keep the kiln for 14 hours, and then open the vent hole to exhaust air , and gradually increase the temperature in the steam oven to 86°C, and dehydrate for 5 hours; repeat this 4 times, then check the moisture content of the wood, and the moisture content is 7.5%; then move the dried paulownia ...

Images