A control method for a wood-coloring double-flow ammonia fumigation system

Abstract

The invention relates to a control method of a wood development double-flow ammonia fumigation system. Fumigation operation of the wood development double-flow ammonia fumigation system is accomplished via a basic automatic controller cooperating with corresponding detection equipment. The control method of the wood development double-flow ammonia fumigation system is based on the basic automatic controller and has the characteristics that firstly, a first temperature sensor cooperates with a first electromagnetic valve to provide the environmental temperature (25-32 DEG C) required by a technology to an ammonia fumigation room to meet temperature requirements of a plate coloring technology during different periods; secondly, a second temperature sensor cooperates with a third electromagnetic valve to provide 30-40 DEG C hot water for heating ammonia to ammonia tanks to meet requirements on ammonia evaporation rate change during different coloring periods; and finally, the ammonia tanks distributed at equal intervals in three lines in the fumigation room and capillary heat exchangers arranged above the ammonia tanks are controlled alternately, and air flow channels of two modes are provided to the fumigation room to uniformly color a plate and avoid nonuniformity in a coloring process.

Description

technical field [0001] The invention belongs to the field of wood color development, and in particular relates to a control method for a wood color development double-flow ammonia fumigation system. Background technique [0002] Wood color development is a conventional treatment method for wood texture enhancement in the industry. [0003] According to the difficulty of dyeing of different woods and the difference in the acidity and alkalinity of the respective dyes, different dyeing methods need to be selected. The effect of wood staining is measured by indicators such as dyeing rate, level dyeing property, and washing fastness; according to the difficulty of wood staining, it can be divided into: the most difficult to penetrate tree species, the most difficult to penetrate tree species, the easiest to penetrate tree species, the easiest Infiltrate tree species. Stained wood technology is divided into: general wood internal staining (dipping) and surface staining. [000...

AI Technical Summary

Problems solved by technology

[0005] The general color reaction is to make wood color by dipping, which not only increases the initial input of dye, but also increases the complexity of the dyeing process, and the space requirement for dyeing is also greater; in addition, some factories use pressurized Although this method can relatively increase the coloring rate, it is not the best solution from the perspective of energy consumption and investment in process-related supporting facilities.

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