Comprehensive reaction kettle used for wood modification

Abstract

The invention discloses a comprehensive reaction kettle used for wood modification. The comprehensive reaction kettle is a sealed cylindrical shell which is internally provided with a stirring shaft. A solid feed inlet and a gas feed inlet are formed in the top of the shell, and a liquid feed inlet is formed in the middle of the shell. A conical material distributor is arranged on the upper portion of the shell and mounted on the stirring shaft in a sleeving mode, and a material distributing circular truncated cone is arranged on the portion, located in the material distributor, of the stirring shaft. The top of the material distributor is connected to the solid feed inlet through a material guiding pipe. An annular liquid spraying pipeline is arranged below the material distributor and connected to the liquid feed inlet. The comprehensive reaction kettle is used for three raw materials, namely solid, liquid and gas, which need to react simultaneously in wood modification production, the liquid and the solid are evenly sprayed under the action of the material distributor and the liquid in the gas environment of the upper portion of the shell, the solid, the liquid and the gas make full contact under the action of a gas jetting pipeline and a blocking screen in the liquid environment of the lower portion of the shell, the contact time of the solid, the liquid and the gas is prolonged, and an efficient reaction is guaranteed.

Description

technical field [0001] The invention relates to the field of production equipment for wood modification, in particular to a comprehensive reaction kettle for wood modification. Background technique [0002] There are many techniques for wood modification. In the production process of modifying reagents, raw materials with three properties of solid, liquid and gas need to be used at the same time for production; from the perspective of the basic reaction principle of chemical reactions, various reaction raw materials The more fully the contact between them, the more uniform the mixing, and the higher the efficiency of the final reaction. [0003] In the traditional reaction equipment, the full contact between the three is guaranteed during the reaction process through the stirring of the stirring paddle. However, due to the limitation of the stirring structure, the residence time of the gas in the liquid medium is relatively short, and the separation of the gas, liquid and so...

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Problems solved by technology

[0003] In the traditional reaction equipment, the full contact between the three is guaranteed during the reaction process through the stirring of the stirring paddle. However, due to the limitation of the stirring structure, the residence time of the gas in the liquid medium is relatively short, and the separation of the gas, liquid and solid is relatively short. The contact time is short, and it is difficult to fully react; therefore, the improved practice on the market dissolves the solid in the liquid solvent, and through the mutual mixing of the liquid solvent and the liquid reaction liquid, finally increases the residence time between the gas and the liquid to achieve an increase of three However, in the field of wood modification, some solid materials cannot be dissolved by solvents and need to react directly with the liquid reaction solution, so the mixing effect of the three will directly affect the reaction efficiency of the overall product

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