Pyrazole ketone synthesis crystal kettle

Abstract

The invention discloses a pyrazole ketone synthesis crystal kettle which comprises a cylinder, a feeding pipe and discharging pipe. A crystal chamber is formed in the cylinder, arc-shaped flow retaining plates are arranged on the inner walls of two sides of the crystal chamber, a mixing motor is arranged at the top end of the cylinder, a rotating shaft of the mixing motor extends to the bottom of the crystal chamber and does not contact with the bottom of the crystal chamber, an anchored mixing propeller is mounted at the bottom end of the rotating shaft, a cooling water circulation pipe is arranged in a cavity in the upper end between the crystal chamber and the cylinder, a plurality of nozzles are distributed on the cooling water circulation pipe, and the other end of the cooling water circulation pipe is connected with a water storage tank. The pyrazole ketone synthesis crystal kettle is high in cooling efficiency and fine in crystal effect, and cooling uniformity and crystal uniformity of materials are improved.

Description

Technical field [0001] The present invention relates to a crystallization kettle, in particular to a crystallization kettle for the synthesis of piralone. Background technique [0002] The crystallization kettle is a crystallization equipment that requires chilled water or refrigerant water to cool down rapidly after the material is mixed and reacted. The structure of the agitator and the material outlet form, the high-precision polishing in the tank, and the requirements of no dead corners in the tank are required to meet the requirements of the process. condition. The existing crystallization kettles basically use jackets for cooling. The jacket heat exchange area is small, the fluid flow speed is small, and the heat transfer coefficient is not high, which leads to uneven cooling of the materials and affects the crystalline form. [0003] In view of the shortcomings in the above prior art, it is necessary to further improve it to make it more practical in order to meet actual us...

AI Technical Summary

Problems solved by technology

The existing crystallization kettles basically use jackets for cooling. The heat exchange area of ​​jackets is not large, the fluid flow rate is small, and the heat transfer coefficient is not high, which leads to uneven cooling of materials and affects the crystallization morphology.

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