System for spraying catalyst on winding type heat exchange tube bundle

Abstract

The invention discloses a system for spraying a catalyst on a winding type heat exchange tube bundle, and relates to the field of chemical engineering and industrial catalysis. The system for spraying the catalyst on the winding type heat exchange tube bundle comprises a catalyst transporting and spraying unit, a heating medium transporting unit, a driving unit and a winding tube prefabricating unit. According to the system, catalyst feed liquid is conveyed, sprayed and recycled to the rotating winding type heat exchange tube bundle through the catalyst conveying and spraying unit, and in the rotating state of the driving unit, a heating medium reaching the preset temperature is introduced into the driving unit through the heating medium conveying unit, so that the catalyst is dried and roasted. According to the system, the mode that a traditional heat exchange type fixed bed reactor is filled with catalyst particles is innovated, the catalyst is sprayed on the winding type heat exchange tube bundle, overall heat exchange catalyst preparation is achieved, catalyst filling and unloading are more convenient, and large-flux heat exchange is achieved; spraying, drying and roasting are synchronously carried out under the continuous rotation of the winding type heat exchange tube bundle, so that the spraying efficiency and the spraying quality are ensured; the system is suitable for preparation of various catalyst systems.

Description

technical field [0001] The invention relates to the fields of chemical engineering and industrial catalysis, in particular to a spraying system for spraying a catalyst on a coiled heat exchange tube bundle. Background technique [0002] The heat exchange fixed bed reactor is a kind of commonly used reactor in the chemical production process. At the same time, the heat exchange between the catalyst bed and the outside is realized. [0003] The catalyst particles and their filling conditions in the reactor have a great influence on the catalytic reaction, and the particle size, bulk density, and adhesion of the active material of the catalyst particles directly affect the reaction rate. However, the loading and unloading of catalyst particles is relatively complicated, and because the catalyst particles are in a fixed position and are distributed in a bed, the reaction heat is easily unevenly distributed, resulting in local flying temperatures. When the chemical reaction hea...

AI Technical Summary

Problems solved by technology

However, the loading and unloading of catalyst particles is more complicated, and because the position of catalyst particles is fixed and distributed in a bed, the heat of reaction is easily distributed unevenly, resulting in local overheating.

When the heat of chemical reaction is large, the heat dissipation solution is mainly to increase the number of heat exchange tube bundles and increase the heat exchange tube path, and the increase in heat dissipation flux is limited

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