A device and modification method for modifying wood by electron beam irradiation

Abstract

The invention provides a device for modifying wood through electron beam irradiation and a modification method. The device for modifying the wood through electron beam irradiation comprises a pre-processing device, an irradiation room and a post-processing device, wherein the pre-processing device is provided with a vacuum pressurization impregnating tank which can carry out vacuumizing and pressurization operation so that the wood can be impregnated with organic solvents; the irradiation room is provided with a conveying device and an electronic accelerator located above the conveying device, and further provided with a protective cover which is arranged on the conveying device and in sealed connection with the conveying device; a wood inlet of the protective cover is provided with a gas feeding device, and a wood outlet of the protective cover is provided with a gas recycling device; turnings of a conveying loop of the conveying device adopt right angles, and a transverse transferring device is arranged at each right-angle turning; and arc conveying devices are adopted at connecting positions of input and output tracks of the conveying device and the conveying loop. By means of the device for modifying the wood through electron beam irradiation and the modification method, organic solvent steam can be effectively controlled and recycled, space is saved, and the device for modifying the wood through electron beam irradiation and the modification method are suitable for modification treatment on plates in different shapes in the fields such as furniture, cars and buildings.

Description

technical field [0001] The invention relates to the field of plastic composite wood preparation, in particular to a device and method for modifying wood by electron beam irradiation. Background technique [0002] Plastic composite wood is to inject unsaturated olefins or other modifiers into the dried wood on the basis of log boards, use radiation or free radicals to initiate reactions, make them polymerize and solidify in the wood, and fill in the gaps in the wood , made of wood-plastic composites. In the early 1960s, plastic composite wood came out, and our country began to study plastic composite wood in 1965. The heat-induced polymerization and radiation-induced polymerization of plastic wood have been developed to a certain extent. Plastic wood has also been applied to automobiles, sports equipment, construction, furniture and other industries at home and abroad, and the application of plastic wood has been growing. [0003] Using gamma rays or electron accelerators t...

AI Technical Summary

Problems solved by technology

[0003] Using gamma rays or electron accelerators to carry out wood irradiation modification can react at room temperature, and the reaction is fast and uniform, which is beneficial to control the reaction process. In the Chinese invention patent specification CN201410023646, a method of using electron accelerators to irradiate and add A method for modifying wood by pressure technology, which uses electron accelerator irradiation modification technology to modify fast-growing wood impregnated with organic solvents, but the irradiation process of wood modification of the invention has the effect of impregnating the modifier Fast-growing wood will have organic solvent volatilization, which will easily cause environmental pollution and safety hazards

In addition, the existing irradiation processing line generally adopts an elliptical conveying circuit, which requires a large space and is not suitable for the transmission of long plates

Images