Method and device for drying easily-dried wood

A technology of drying device and drying method, which is applied in the field of wood processing, can solve the problems of low energy utilization rate, long drying time, and slow drying speed, and achieve the effects of reducing drying energy consumption, improving drying efficiency, and increasing drying speed

Active Publication Date: 2016-06-01
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, conventional steam drying is widely used due to its advantages of mature technology and large loading capacity, and is the most important wood drying method in the prior art. However, this method has defects such as low energy utilization rate, slow drying speed, and long dryin

Method used

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  • Method and device for drying easily-dried wood
  • Method and device for drying easily-dried wood
  • Method and device for drying easily-dried wood

Examples

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Example Embodiment

[0030] Example 1

[0031] A drying method for easy-drying wood, specifically comprising the following steps:

[0032] (1) Wood accumulation: stack the wet masson pine sawn timber into the wood accumulation area in the drying kiln;

[0033] In this embodiment, according to the LY / T1068-2012 standard, the sawn timber of wet masson pine is piled up, the thickness of the sawn timber is 25mm, the length is 2.0m, and the initial moisture content is about 75%; the height of the pile is 1.5m, and the pile The width is 1.5m; the thickness and width of the spacer are 25mm and 35mm respectively, and the length of the spacer is 1.6m; and the temperature and moisture content sensors are placed in the pile according to the standard requirements;

[0034] (2) Heating and preheating: close the door and air inlet of the drying kiln body, and quickly raise the kiln temperature to 42°C under the condition of ventilation and dehumidification, and keep it warm for 1.0 hours, so that the wet masso...

Example Embodiment

[0040] Example 2

[0041] A drying method for easy-drying wood, specifically comprising the following steps:

[0042] (1) Wood accumulation: Wet poplar veneers are piled into the wood accumulation area of ​​the drying kiln body;

[0043] In this example, the wet poplar veneer is stacked according to the LY / T1068-2012 standard. The thickness of the poplar veneer is 1.2mm, the width is 1.22m, the length is 2.44m, and the average moisture content is 92%. During the process, first stack 15 layers of veneers in the thickness direction to form a veneer layer with a thickness of 18mm, and then place a layer of spacers, alternately, the height of the stack is 1.2m, and the width of the stack is 1.22m; The thickness and width are 20mm and 30mm respectively, and the length of the spacer is 1.4m. And install the temperature and moisture content sensors in the single plate stack according to the standard requirements.

[0044] (2) Preheating: Close the door and air inlet of the drying ...

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Abstract

The invention discloses a method and device for drying easily-dried wood. The method for drying the easily-dried wood comprises the steps of wood accumulating, temperature rise preheating, temperature rise drying, constant-temperature drying, temperature reducing drying and cooling drawing. The device for drying the easily-dried wood comprises a drying kiln body, and a drying kiln body gate is arranged on the drying kiln body. The device for drying the easily-dried wood further comprises a ventilation and dehumidification system, a heating system, a detection and control system and a saturated steam generator. A wood accumulating area is arranged in the drying kiln body. An air inlet capable of being opened or closed is formed in the drying kiln body. The ventilation and dehumidification system, the heating system and the saturated steam generator are all communicated with the wood accumulating area. The detection and control system is used for detecting drying parameters in the drying kiln body and electrically connected with the ventilation and dehumidification system, the heating system, the saturated steam generator and the air inlet. The method and device have the beneficial effects of being high in drying speed, low in energy consumption, small in pollution to environment and the like.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a drying method and device for easy-drying wood. Background technique [0002] Drying is an important process in wood processing. The energy consumption during drying accounts for about 40-70% of the total energy consumption in wood processing, and the quality of drying directly determines the utilization rate of wood and the quality of wood products. [0003] At present, conventional steam drying is widely used due to its advantages of mature technology and large loading capacity, and is the most important wood drying method in the prior art. However, this method has defects such as low energy utilization rate, slow drying speed, and long drying time. Moreover, in the process of drying wood by this method, it is necessary to discharge dry exhaust gas to the outside, which will cause a certain degree of pollution to the environment. This shortcoming is particularly prom...

Claims

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Application Information

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IPC IPC(8): F26B9/00F26B3/00F26B23/00F26B25/22
CPCF26B3/00F26B9/00F26B23/00F26B25/22F26B2210/16
Inventor 李贤军牟群英刘壮青张艳来郝晓峰张明龙黄琼涛蔡琦胡进波
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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