Wood superheated steam drying and heat treatment integrated device and using method

Abstract

The invention discloses a wood superheated steam drying and heat treatment integrated device. The wood superheated steam drying and heat treatment integrated device comprises a kiln body, fan assemblies, heater assemblies, steam injection assemblies and partition plates. A plurality of wood drying areas are arranged in the kiln body at intervals. The plurality of heater assemblies are arranged above the wood drying areas; the multiple fan assemblies are located above gaps between the adjacent wood drying areas, and air outlets of the fan assemblies face the heater assemblies. The partition plates are horizontally arranged between the wood drying areas and the heater assemblies. The two sides of the partition plates and the two side walls of the kiln body are arranged in a spaced mode, flowguide plates which are obliquely arranged downwards are arranged on the two sides of the partition plate, exhaust ports are formed in the two sides of the top of the kiln body, and the steam injection assemblies arranged between the exhaust ports and the wood drying areas.

Description

technical field [0001] The invention relates to the technical field of wood drying and heat treatment, in particular to an integrated device for wood superheated steam drying and heat treatment and a use method. Background technique [0002] Superheated steam is obtained by providing additional sensible heat to the steam at a given pressure, raising the temperature of the steam above its saturation point. Superheated steam can be applied to directly or indirectly dry materials, eliminate surface hardening, improve energy efficiency, and reduce oxidation reactions in an oxygen-free environment, etc., which have continuously attracted the attention of researchers in the drying field. The research results of Hao Xiaofeng, Xiong Xingyang, Wei Yanqiang, Li Yunyan, Li Yun, Cheng Xiyi and others showed that: at a certain treatment temperature, superheated steam drying can significantly improve the dimensional stability, Elastic modulus and tensile strength, while not changing the ...

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Problems solved by technology

[0003] At present, wood drying and heat treatment are carried out in sequence in the enterprise, and there are problems such as two times of palletizing, two times of heating up and two times of cooling down, cumbersome procedures, and long cycles.

Traditional drying equipment uses axial flow fans, which have a larger diameter and take up a lot of space, while heat treatment equipment uses external fans. When heating wood, there are problems such as long wind speed circulation path, high heat at the front end and low heat at the rear end. Use the forward and reverse of the fan to solve the problem, but there is still the problem of uneven heat transfer

On the other hand, most of the wood adopts conventional drying, which has the problems of long drying cycle, high energy consumption and unstable quality.

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