Crystallizer for closed-loop regulation of circulating water system

The invention discloses a crystallizer for a closed-loop regulation circulating water system. The crystallizer comprises a tank body, a material storage cavity, a fixed pipe, a cooling system, a stirring device and a feeding device, the stirring device comprises a moving groove, a rotating ring, a stirring rod, a scraping box, a wall hanging mechanism, a first gear, a variable gear, a rotating gear ring and an electronic telescopic rod; according to the sewage treatment device disclosed by the invention, a mixing agent can be intermittently put into sewage during stirring, and then stirring is performed; the crystallization efficiency is improved; the crystals can be collected during stirring, and the feeding flow can be automatically changed according to the components of the crystals during collection; on one hand, the crystal collection stability is improved, on the other hand, the energy consumption is reduced, and the crystal collection stability is improved. 本发明公开了一种用于闭环调节循环水系统的结晶器，包括罐体、蓄料腔、固定管、冷却系统、搅拌装