Wood modification device

Abstract

The invention relates to a wood modification device which is characterized in that a pressure jar is connected to a liquid medicine circulation system through a pipeline, wherein the upper part of the pressure jar is provided with a hot air valve through the pipeline. The working principle is as follows: all valves are closed at first; a 50-150mm cylindrical surface is pre-processed on one end of a log and the log is arranged in the pressure jar through an upper cover round hole; the log and an upper cover are fixed through a block ring and are in sealing connection; and then, a tree liquid valve, a right lower valve and a left upper valve are opened; a liquid medicine pump is opened for pumping the liquid medicine in a liquid medicine jar into the pressure jar; the liquid medicine enters from a lower end face of the log and the tree liquid in the log is expelled to flow out from an upper end face of the log; and then the tree liquid passes through the tree liquid valve through a liquid collection slot and flows into the tree liquid jar; and when the viscosity or color of the liquid flowed from the upper end face of the log changes obviously, a return valve is opened, the tree liquid valve is closed, the liquid flowed out from the end face of the log flows back to the liquid medicine jar, a heater is started for heating the liquid medicine which enters into the pressure jar till the liquid medicine is at a preset temperature, and the liquid medicine which flows by the log is quickly heated and soaked by the log.

Description

Technical field [0001] The invention relates to wood modification equipment, in particular to equipment capable of impregnating logs with high humidity through liquid medicine pressure to achieve higher temperature modification and drying, and belongs to the field of wood processing technology and equipment. Background technique [0002] At present, the wood chemical modification process mainly includes impregnation at atmospheric pressure, high-pressure impregnation in a closed container, vacuum impregnation in a closed container and its combination with high-pressure impregnation. In these processes, the pressure around the wood is the same, the impregnation process is slow, and the production efficiency is low. To solve the above problems, the patent 2009101310803 discloses a pressurized liquid medicine impregnation device. The liquid flows along the fiber conduit or other capillaries to the other end of the log to drive out the free water in the log, and at the same time...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the existing wood modification process, the chemical liquid leaks from the log knots in the chemical liquid pressurized impregnation equipment, which may crack the log, and the low productivity due to the low drying heat transfer rate of wood, The invention provides equipment for wood modification

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