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Method and equipment for wood drying and carbonization integrated treatment under vacuum condition

A technology of wood drying and vacuum conditions, applied in wood drying, wood treatment, wood treatment details, etc., can solve the problems of wasting time, energy, low production efficiency, cracking and carbonization, etc., to reduce energy consumption, improve processing efficiency, oxidation Reduced effect

Inactive Publication Date: 2017-12-12
GUANGDONG YIHUA TIMBER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Wood is usually dried before carbonization. Direct carbonization of wood with high moisture content will lead to defects such as deformation, warping, cracking and uneven carbonization of the wood.
However, the existing carbonization equipment can only perform high-temperature carbonization treatment of wood, and cannot dry wood before carbonization.
Wood is usually kiln-dried to a certain moisture content (6%-8%), and then sent to carbonization equipment for carbonization treatment, which results in multiple loading, unloading and stacking of materials between different equipment, wasting time and energy , leading to low production efficiency

Method used

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  • Method and equipment for wood drying and carbonization integrated treatment under vacuum condition

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The wood drying-carbonization treatment integrated treatment method comprises the following steps:

[0037] 1) Timber loading: Process high-moisture-content wood into boards and squares of specified thickness, which require consistent thickness specifications. Pull the trolley out of the drying-carbonization treatment box, and use the lifting device outside the box to lift the hot plate layer by layer. The wood is neatly loaded in a single row between the multi-layer hot plates. After loading, the lifting device is used to lower the heat layer by layer and align up and down. Finally, the trolley is pushed into the processing box. The layer hot plate is pressurized, and the heavy-duty device is pressurized throughout the drying and carbonization process, and finally the equipment airtight door is closed;

[0038] 2) Pre-vacuum treatment: close the inlet valve of the treatment box and the drain valve connected to the drainage box, open the water inlet valve connected to t...

Embodiment 2

[0047] The wood drying-carbonization treatment integrated treatment method comprises the following steps:

[0048] 1) Timber loading: Process high-moisture-content wood into boards and squares of specified thickness, which require consistent thickness specifications. Pull the trolley out of the drying-carbonization treatment box, and use the lifting device outside the box to lift the hot plate layer by layer. The wood is neatly loaded in a single row between the multi-layer hot plates. After loading, the lifting device is used to lower the heat layer by layer and align up and down. Finally, the trolley is pushed into the processing box. The layer hot plate is pressurized, and the heavy-duty device is pressurized throughout the drying and carbonization process, and finally the equipment airtight door is closed;

[0049] 2) Pre-vacuum treatment: close the inlet valve of the treatment box and the drain valve connected to the drainage box, open the water inlet valve connected to t...

Embodiment 3

[0058] The wood drying-carbonization treatment integrated treatment method comprises the following steps:

[0059] 1) Timber loading: Process high-moisture-content wood into boards and squares of specified thickness, which require consistent thickness specifications. Pull the trolley out of the drying-carbonization treatment box, and use the lifting device outside the box to lift the hot plate layer by layer. The wood is neatly loaded in a single row between the multi-layer hot plates. After loading, the lifting device is used to lower the heat layer by layer and align up and down. Finally, the trolley is pushed into the processing box. The layer hot plate is pressurized, and the heavy-duty device is pressurized throughout the drying and carbonization process, and finally the equipment airtight door is closed;

[0060] 2) Pre-vacuum treatment: close the inlet valve of the treatment box and the drain valve connected to the drainage box, open the water inlet valve connected to t...

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Abstract

The invention provides equipment for drying and carbonizing wood integrally. The equipment comprises a pressure adjusting system, a heating and cooling system, a material loading, transporting and pressurizing system and a water drainage system; an exo-box heat conduction oil pipe of the heating and cooling system penetrates through a treatment box and is welded to a wall of the treatment box for being sealed; a water inlet valve of the water drainage system is connected to the treatment box and a water drainage box through connection pipelines; and an outer wall of a hydraulic cylinder of the material loading, transporting and pressurizing system is welded to the treatment box in a sealed mode. The equipment has the advantages that the repeated loading, stacking, heating and cooling steps of the drying and heat treating steps of wood are reduced, so that the processing efficiency is improved, and the energy consumption is lowered; a processing method is flexible and multipurpose and the equipment is multifunctional; the whole drying and carbonizing treatment is carried out on the vacuum and negative pressure conditions, the content of air in the treatment box is small, and the oxygen content is low; carbonized wood making contact with a hot plate can be fast cooled; and the wood can be prevented from being deformed, warped and cracked in the vacuum drying and vacuum carbonizing stages.

Description

technical field [0001] The invention relates to a method and equipment for wood drying and carbonization integrated treatment under vacuum conditions, and belongs to the field of wood drying and wood carbonization processing. Background technique [0002] Wood is easy to process, renewable, high strength-to-weight ratio, natural color and beautiful pattern, and excellent environmental characteristics. It is still widely used in the fields of construction, furniture, wood products, and interior decoration. However, as a natural and renewable biological material, wood also has defects such as easy deformation, cracking, decay, insects, mildew, and color difference. The dried wood can reduce the above defects, and it can be used in furniture and wood products processing. But its dimensional stability, weather resistance, corrosion resistance and chromatic aberration etc. of the dried wood still can't meet the use needs in some application occasions. Wood heat treatment has be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K5/00F26B5/04F26B9/06F26B23/10
CPCB27K5/001F26B5/044F26B9/06F26B23/10F26B2210/16
Inventor 刘洪海黄彦慧杨琳刘子欢吴智慧
Owner GUANGDONG YIHUA TIMBER IND