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Pine drying method

A drying method and technology of pine wood, applied in the direction of drying gas arrangement, drying, dryer, etc., can solve problems such as cracking and easy warping of pine wood, and achieve the effect of reducing wood bending and preventing wood bending

Active Publication Date: 2015-04-15
柳州林道轻型木结构制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a drying method for pine wood, which can solve the problem that pine wood is easy to warp and crack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The drying kiln of the present invention adopts the 105M3 Shenganli brand aluminum alloy kiln produced by Kaiyuan Aoshi Drying Equipment Co., Ltd., which is equipped with 2 groups of radiators, 5 fans, 2 groups of wet-discharging windows, and each group of wet-discharging windows There are 7 dehumidification windows, 3 dehumidification micro-motors with a voltage of 24W, 3 sets of wood moisture content wires, 2 sets of temperature sensors, 2 sets of balance moisture content sensors, and 3 pipelines for steam inlet and return water. , steam spray pipeline, actuator, electric steam micro-regulating valve, dehumidification micro-motor and steam spray solenoid valve;

[0015] When drying pine boards, stack the pine boards in the drying kiln before drying. The steps are:

[0016] (1) Select a pine board with a thickness of 25mm and a moisture content of 40% and put it into the kiln;

[0017] (2) Stack the pine boards in the kiln in layers, and use spacers between layers. Th...

Embodiment 2

[0022] The drying kiln of the present embodiment is the same as that of Example 1. When the pine plank is to be dried, the pine plank is piled up in the above-mentioned drying kiln before drying, and the steps are:

[0023] (1) Select a pine board with a thickness of 35mm and a moisture content of 45% and put it into the kiln;

[0024] (2) Stack the pine boards in the kiln in layers, use spacers between layers, the distance between each spacer on the same layer is 1200mm, and keep each layer of spacers in a vertical line from top to bottom in the height direction , the spacer set at the end of the pine board should be flush with the end of the board;

[0025] (3) According to the size of the pine board pile, the flow rate of the drying medium, and the moisture content of the board, the pine wood drying standard is established. The drying standard setting table is shown in Table 1, and each parameter is set according to Table 1, and then the drying system of the drying kiln is ...

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Abstract

The invention discloses a pine drying method, and belongs to the field of timber processing. The method comprises the following steps: selecting pine sheets with the thickness of 25-35mm and the water content of 40-45% before drying, putting the pine sheets in a kiln, stacking, using division bars between layers of the pine sheets, making a pine water content drying reference according to the dimension of the stack of the pine sheets, the flow velocity of a drying medium and the water content of the sheets, setting a wet and dry bulb temperature according to the water content drying standard, starting a system in the drying kiln to carry out automatic heating and steam injection to a preset required range, cooling the pine sheets, and discharging the cooled pine sheets from the kiln to obtain a finished product. The method allows the water content of the timber to be balanced in the drying process by adopting the pine drying reference and using automatic steam injection, prevents the deformation, cracking and bending of the sheets in the drying process, and realizes an optimal drying state through multi-time automatic steam injection, humidity elimination and adjustment.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a method for drying pine wood. Background technique [0002] Wood must be pretreated before it is put into use, and among them, wood drying is an important link and the most critical process in the first step; the quality of drying directly affects the utilization rate of wood and the processing of subsequent processes, directly affecting It affects the final quality of wood products. Cedar is one of the most important specialty timber species in southern my country, especially in Guangxi. Pine grows fast, has straight texture and fine wood. However, pine has high moisture content and is easy to crack, resulting in low comprehensive utilization rate of pine wood. Along with the implementation of natural forest protection projects in my country, the general implementation of cutting restrictions and bans, timber is in short supply; in order to rationally utilize timber, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K1/00B27K5/00F26B21/06F26B21/10
CPCF26B21/06F26B21/10
Inventor 颜军
Owner 柳州林道轻型木结构制造有限公司
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