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Lumber drying equipment and method of drying lumber by using equipment

A technology for wood drying and drying equipment, which is applied to the combination of methods to dry solid materials, dry solid materials, local stirring dryers, etc., can solve the problems of inability to perform drying treatment, large ultrasonic energy loss, low efficiency, etc., to reduce drying. Defects, fast drying, uniform treatment effect

Active Publication Date: 2013-05-22
简木(广东)定制家居有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This utility model drying equipment is used for drying biochemical products, medicines and food with high heat sensitivity and high viscosity. Using steel plate as the ultrasonic transmission medium, the ultrasonic energy loss is large and the efficiency is low, and it cannot be used for large-volume dried materials such as wood. for drying

Method used

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  • Lumber drying equipment and method of drying lumber by using equipment
  • Lumber drying equipment and method of drying lumber by using equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Take a eucalyptus wood segment with a size of 200mm (length) × 100mm (width) × 40mm (thickness) and carry out ultrasonic drying treatment to dry the eucalyptus wood

[0069] 1. Place a piece of eucalyptus wood section on the loading assembly 4 so that the thickness of the eucalyptus wood section is consistent with the radial (height) direction of the wood drying chamber 1, that is, place the eucalyptus wood section on the loading assembly 4 The height is 40mm.

[0070] 2. Place 2 ultrasonic transducers 22 in the plane perpendicular to the length and width of the eucalyptus wood section in the thickness direction of the eucalyptus wood section, and make the ultrasonic transducer 22 and the upper surface of the eucalyptus wood section 6 direct contact.

[0071] 3. Set the power and frequency of the ultrasonic transducer 22 according to the area of ​​the plane formed by the length and width direction of the wood to be treated, and adjust the ultrasonic generator 21 so tha...

Embodiment 2

[0078] Except that the thickness of the eucalyptus wood section is 20mm, the power of each ultrasonic transducer 22 is 150W, and the ultrasonic power applied on each square centimeter of wood section is 1.5W, and the temperature in the cavity of the wood drying chamber 1 is 40°C. The rate is 5° C. / min, and the absolute pressure in the cavity of the wood drying chamber is 0.08 MPa, and the rest are the same as in Example 1.

[0079] The wood drying time and drying rate are shown in Table 1.

Embodiment 3

[0081] Except that the temperature in the cavity of the wood drying chamber 1 is 50°C, the temperature rise rate is 15°C / min, the absolute pressure is 0.03MPa, the power of each ultrasonic transducer is 300W, and the frequency is 28kHz. Ultrasonic power is except 3W, all the other are identical with embodiment 1.

[0082] The wood drying time and drying rate are shown in Table 1.

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Abstract

The invention discloses lumber drying equipment and a method of drying lumber by using equipment. The device comprises a lumber drying room (1) with a hollow cavity in the inner portion, an ultrasonic wave processing device (2), a vacuum supply device (3) carrying out the vacuum supply processing to the hollow cavity of the lumber drying room (1), an installing material assembly (4) placing to-be processed lumbers and a heating device (5) carrying out heating processing to the to-be processed lumbers. An ultrasonic wave energy converter is directly contacted with the lumbers in the drying process. The lumbers are dried under the vacuum condition. An ultrasonic wave with certain frequency and power is added in the lumber vacuum drying process. The lumbers are dried under the low drying temperature. Drying rate is high and drying quality is good. Produced drying defects under the high temperature condition of the vacuum drying can be avoided. The drying equipment is simple. The drying method is convenient to operate.

Description

technical field [0001] The invention relates to a wood drying device and a drying method, in particular to an ultrasonic drying device and a drying method, belonging to the field of wood drying. Background technique [0002] Wood drying is the most important process link in the production process of wood products, and its energy consumption 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. [0003] Wood vacuum drying is considered to be a new wood drying process with development prospects due to its advantages of fast drying speed, good drying quality, many applicable wood types and small footprint. However, vacuum drying also has some defects. For example, vacuum drying is beneficial to the drying of wood internal bound water, but the drying effect on wood ...

Claims

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Application Information

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IPC IPC(8): F26B9/06F26B7/00
Inventor 何正斌杨飞赵阳伊松林高建民何正胤
Owner 简木(广东)定制家居有限公司
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