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Cypress defatting method

A technology of cypress and cypress oil, applied in wood treatment, wood processing equipment, wood treatment details, etc., can solve the problem of not being able to degrease in large quantities

Inactive Publication Date: 2012-09-12
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the above-mentioned technical problems, the present invention proposes a method for degreasing cypress, adopting this method, the degreasing effect is good, easy to operate, can be widely used in the degreasing treatment of cypress, and solves the existing problems in the prior art that cannot be degreased in large quantities And the technical problem that after degreasing in the degreasing tank, it needs to be transferred to the drying kiln for drying

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  • Cypress defatting method

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Effect test

Embodiment 1

[0034] The invention relates to a method for degreasing cypress wood. In the method, the log is first processed into a board with a certain thickness according to requirements, and then the wood is placed in a closed container, and the cypress board is heated by steam, and steaming is performed with saturated steam at the same time. The resin contained in the cypress is liquefied, the resin is dissolved into cedar oil, and the cedar oil is heated and azeotroped with water vapor, and the cedar oil in the cedar board is continuously volatilized, and the wood is discharged together with the migration of water and water vapor, thereby exuding the resin. To achieve the purpose of degreasing.

[0035] In the present invention, the drying kiln adopted is the top fan drying kiln commonly used in the prior art, and is made up of following system:

[0036] (1) Kiln door and kiln door opening and closing device;

[0037] (2) Electrical control system: electrical control cabinet, solenoi...

Embodiment 2

[0042] As a best implementation mode of the present invention is:

[0043] Step 1: Process the cypress log into a plate with a thickness of 25mm as required.

[0044] Step 2: Put the cypress boards with a thickness of 25mm into the drying kiln and close the kiln door.

[0045] Step 3: Raise the temperature in the drying kiln to 50-55°C first, and then spray saturated steam to the drying kiln to make the dry and wet bulb temperatures of the medium in the drying kiln both reach 78-80°C, and steam and degrease the board , steam degreasing time is 3h.

[0046] Step 4: After steaming, transfer the cypress board to the normal drying process according to the kiln drying benchmark table. During the whole drying process, steaming and heating must be carried out in strict accordance with the requirements of the drying standard to further degrease the cypress board. When the wood moisture content reaches 8-10%, the drying ends and the final balance treatment is carried out.

[0047] ...

Embodiment 3

[0053] As a preferred embodiment of the present invention is:

[0054] Step 1: Process the cypress log into a plate with a thickness of 40 mm as required.

[0055] Step 2: Put the 40mm thick cypress board into the drying kiln and close the kiln door.

[0056] Step 3: Raise the temperature in the drying kiln to 55-60°C first, and then spray saturated steam to the drying kiln to make the dry and wet bulb temperatures of the medium in the drying kiln both reach 82-85°C, and steam and degrease the board , steam degreasing time is 4h.

[0057] Step 4: After steaming, transfer the cypress board to the normal drying process according to the kiln drying benchmark table. During the whole drying process, steaming and heating must be carried out in strict accordance with the requirements of the drying standard to further degrease the cypress board. When the wood moisture content reaches 8-10%, the drying ends and the final balance treatment is carried out.

[0058] Step 5: After degrea...

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Abstract

The invention discloses a cypress defatting method, and relates to the technical field of modified treatment on wood in wood processing. Cypress log is firstly processed into boards of different thickness according to requirements, then the boards are placed in a closed dry kiln to be heated by steam and then to be steamed by saturated steam, so that the resin in the board is liquefied into cedar oil, the cedar oil is heated to be azeotropic with the water vapor, the cedar oil of the board is volatilized constantly and is discharged out of the board along with water and water vapor, so that he purpose of seeping resin is achieved. According to the method, the defatting effect is good, the method is easy to operate and can be widely used for cypress defatting, and the problems in the prior art that defatting treatment can not be carried out on a large scale and defatting treatment needs to be continued in the dry kiln after being carried out in a defatting tank are solved.

Description

[0001] technical field [0002] The invention relates to the technical field of modifying wood in wood processing, in particular to a method for degreasing cypress wood. Background technique [0003] Cypress wood has moderate strength, good material, aroma, straight grain, corrosion resistance and moisture resistance. It has warm and delicate color, clear wood grain, rich natural wood knots on the surface, full of artistic atmosphere, and gives people a kind of beautiful enjoyment. But cypress contains a large amount of resin, and without degreasing and drying treatment, cypress is easy to deform, which will affect the processing and utilization of wood, such as the planed surface has a greasy feeling, the surface sanding effect is poor, and it is not easy to color and paint. When the ambient temperature is high, the resin contained in cypress will be dissolved into cypress oil and seep out of the surface of the wood, destroying the surface paint of wood products and af...

Claims

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Application Information

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IPC IPC(8): B27K5/00
Inventor 王燕高胡庭兴李贤伟齐锦秋宁莉萍杨永前肖辉曾静罗松明杨桦董文英吕建华
Owner SICHUAN AGRI UNIV
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