Nitrification reactor

Abstract

The utility model relates to the technical field of reaction kettles, in particular to a nitration reactor which is characterized in that material feeding pipes are arranged at the upper part of the side wall of a reaction kettle body in an equal-angle up-and-down staggered penetrating manner; the inclined blade turbine paddles are fixed at the upper part of the stirring shaft at equal angles; the propelling impeller paddles are positioned below the inclined blade turbine paddles; the coil pipes are arranged in the reaction kettle body at equal intervals; the lower end of each group of coil pipes is communicated and connected with a coil pipe cooling water branch inlet pipe, the upper end of each group of coil pipes is communicated and connected with a coil pipe cooling water branch outlet pipe, and the plurality of coil pipe cooling water branch inlet pipes penetrate through the reaction kettle body and the side wall of the spacer bush and then are communicated and connected with a coil pipe cooling water main inlet pipe. The mixing effect is effectively enhanced by adopting peripheral annular cross feeding; the heat exchange capacity is enhanced by utilizing heat exchange between the spacer bush and the coil pipe, the heat exchange effect is further enhanced by matching heat exchange with a heat exchanger arranged in an external circulation manner, the temperature of backflow liquid at the top is low, heat in a reaction concentration area can be rapidly taken away, and the device is suitable for strong reaction and high-viscosity reaction systems.

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