Crystallization device

摘要

To provide a crystallization device with a simple structure and high classification performance in crystallization at a center part of an upper part in a vertical container having a classification leg on a bottom portion, rotor blade unit for generating a swirling flow of a raw material liquid of a suspension slurry in the container along an inner circumferential surface of the container is provided, and at a center part on a bottom surface of the container, liquid-flow direction changing unit for causing the raw material liquid to flow upward at the center part of the container is provided, and the liquid-flow direction changing unit is formed of baffles, each being made of a band-shaped plate, provided radially on the bottom surface.

主权项

1. A crystallization device comprising:
a vertical container; a classification leg on a bottom part of the container; a rotor blade means provided at a center part of an upper part in the vertical container configured to generate a swirling flow of a raw material liquid in the container along an inner circumferential surface of the container; a liquid-flow direction changing means provided at a center part of a bottom surface in the container configured to cause the raw material liquid to flow upward at the center part of the container; and a circulation pipeline having a first fluid opening at a lower end portion of the classification leg and a second fluid opening at a side surface of the container above the rotor blade means.