Processing equipment and processing method for improving wood breathability

A technology of wood treatment and treatment equipment, which is applied in wood treatment, wood treatment details, wood processing equipment, etc., can solve the problems of affecting the drying quality of dried wood, slow movement of moisture inside wood, and easy drying defects, etc., to achieve the improvement of ultrasonic treatment Efficiency, reduction of drying defects, and shortening of the drying cycle

Inactive Publication Date: 2013-05-22
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method has the following advantages and effects: (1) it is suitable for all wood as raw materials; (2) it has the advantages of simple method, strong operability, and safety and reliability; (3) it can better realize the improvement of the permeability of wood (4) Improve the permeability of wood by using the internal micro-explosion method of wood, and provide technical support for the functional modification of wood; (5) It is non-polluting and is a green and environmentally friendly production method; (6) Can manufacture Produce wood with

Method used

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  • Processing equipment and processing method for improving wood breathability
  • Processing equipment and processing method for improving wood breathability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Get the eucalyptus wood section that size is 200mm (length) * 100mm (width) * 40mm (thickness) and carry out ultrasonic treatment, improve the gas permeability of eucalyptus wood.

[0067] 1. Drill holes in the plane formed by the length and thickness of each eucalyptus wood segment, and the horizontal distance between two adjacent drill holes along the length direction of the wood segment is 4cm; adjacent along the thickness direction The vertical spacing between two boreholes is 1cm; Then the temperature sensor that diameter is 1mm is installed in the aperture of described wood section, 3 layers of temperature sensors 51 are evenly arranged in the thickness direction of wood section, in the wood section Four layers of temperature sensors 51 are evenly arranged in the length direction.

[0068] 2. Place a piece of eucalyptus wood section 6 in parallel on the material assembly 4, so that the thickness direction of the eucalyptus wood section is consistent with the radia...

Embodiment 2

[0076] Except that the thickness of the eucalyptus wood section is 20 mm, and one temperature sensor 51 is evenly arranged in the thickness direction of the wood section, the rest is the same as that of Embodiment 1.

Embodiment 3

[0078] Except that the absolute pressure in the wood treatment chamber cavity during ultrasonic treatment is 0.03MPa, the power of each ultrasonic transducer is 150W, the frequency is 20kHz, and the ultrasonic power applied to each square centimeter of wood section is 1.5W, the rest are consistent with the implementation Example 1 is the same.

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Abstract

The invention discloses pre-processing equipment and a processing method for improving wood breathability. The device comprises a wood processing chamber in which a hollow cavity is arranged, an ultrasonic processing device, a wood holding assembly used for holding the wood to be processed, and a detecting device used for detecting the wood temperature, and the ultrasonic processing device is used for performing ultrasonic processing on the wood to be processed, wherein the wood to be processed is stacked on the wood holding assembly. The method disclosed by the invention is used for performing ultrasonic processing on the wood under a vacuum state so as to improve the wood breathability, get through the moisture passages in the wood to guarantee the smoothness of the passages when the moisture in the wood volatilizes during the drying process, improve the drying quality of the wood, reduce the drying defects during the drying process and shorten the drying period, and furthermore, the pre-processing equipment is simple, the operation is convenient, the processing technique conditions (pressure, ultrasonic power and frequency) are controllable, so that the equipment and the method are suitable for processing various types of wood.

Description

technical field [0001] The invention relates to a wood pretreatment device and a pretreatment method, in particular to a pretreatment device and a prediction method for improving the air permeability of hard-to-dry wood, and belongs to the technical field of wood pretreatment. Background technique [0002] Wood drying is the most important process in the production process of wood products. Under the action of heat, the moisture in the wood is discharged from the wood by evaporation or boiling vaporization, reducing the moisture content in the wood. The energy consumption of the wood drying process accounts for about 40% to 70% of the total energy consumption of wood product production. Correct and reasonable drying treatment of wood is not only the key to ensure the quality of wood products, but also an important means of rational utilization and saving of wood. However, for most woods with poor air permeability (such as catalpa, eucalyptus, catalpa, etc.), the traditional...

Claims

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Application Information

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IPC IPC(8): B27K5/00
Inventor 何正斌李帆郭月红伊松林高建民何正胤
Owner BEIJING FORESTRY UNIVERSITY
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