CN105881681A - Wood drying moisture-adjustment treatment method - Google Patents

Abstract

The invention provides a wood drying moisture-adjustment treatment method. In a wood drying process, existing moisture-adjustment treatment methods used during wood drying have the defects that operation processes are unreasonably arranged, numerous operation processes are needed, selection of process parameters is unreasonable, match of all the process parameters is unreasonable, the requirement for experience of an operator is high, consequently, the production cost is slightly high, the product quality is slightly low, and the finished product rate is low. Accordingly, the existing moisture-adjustment treatment methods cannot meet the process requirement and need to be improved so as to improve properties.

Description

A kind of drying of wood Wetting treatment process

Technical field

The present invention relates to the Wetting treatment process in a kind of timber drying.

Background technology

In Wood drying technique, the Wetting treatment process in existing timber drying, procedure arrangement is unreasonable, operation is various, and technological parameter selects Unreasonable, the collocation of each technological parameter is unreasonable and higher to operator's skill requirement so that production cost is higher, product quality is on the low side, yield rate The highest, can not meet technological requirement, need to be improved to improve performance.

Summary of the invention

In view of the drawbacks described above of prior art, the technical problem to be solved is to provide that a kind of operation is reasonable, precision is high, the dry mistake of low cost of manufacture Timber Wetting treatment process in journey.

Detailed description of the invention

1. the pre-heat treatment: must preheat before the drying of wood, ambient condition, dry-bulb temperature is higher than the benchmark first stage 5 DEG C, and psychrometric difference is 2 DEG C of maintenances Time: estimating by lumber thickness, every 1cm warms 1.5 hours；Make timber heat penetration, be beneficial to be dried；

The most finally being heat-treated, dry-bulb temperature is higher 8 DEG C than the dry-bulb temperature in stage at that time, wet-bulb depression 2-3 DEG C；Hold time, thick by timber Degree is estimated, every 1cm thickness is 2 hours；Intermediate treatment at moisture content 35%, 25%, 20%, carry out respectively 4 times when 15%.

Claims (1)

1. the invention provides a kind of drying of wood Wetting treatment process, its step is as follows:

1. the pre-heat treatment: must preheat before the drying of wood, ambient condition, dry-bulb temperature is higher than the benchmark first stage 5 DEG C, wet and dry bulb Difference is 2 DEG C and holds time: estimating by lumber thickness, every 1cm warms 1.5 hours；Make timber heat penetration, be beneficial to be dried；

The most finally being heat-treated, dry-bulb temperature is higher 8 DEG C than the dry-bulb temperature in stage at that time, wet-bulb depression 2-3 DEG C；Hold time, thick by timber Degree is estimated, every 1cm thickness is 2 hours；Intermediate treatment at moisture content 35%, 25%, 20%, carry out respectively 4 times when 15%.