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According to information from the Intellectual Property Office as of April 15, 2025, **Fuquan Xingxin Chemical Technology Co., Ltd. has been granted a patent for an invention titled “A device for the cooling and crystallization of barium hydroxide”, with the approval number CN 222752586 U. The application was filed in April 2024. The patent abstract indicates that this utility model discloses a device for the cooling and crystallization of barium hydroxide. It includes a device body; a coolant feed pipe is located on the left side of the top of the device body, while a feed hopper is situated on the right side of the top. A servo motor is installed at the top of the device body, and a screw rod is mounted on the output end of this servo motor. A fixing sleeve is placed around the middle of the screw rod, and a screw rod groove is provided at the top of the fixing sleeve. A water storage tank is located on the front side of the device body, with a water pump pipe attached to the top of this tank. A discharge pipe is situated on the left side of the bottom of the device body. The output end of the servo motor drives the screw to rotate; the screw, in turn, moves the fixing sleeve up and down through the screw groove. As it moves, it causes multiple stirring rods to rotate synchronously. Meanwhile, the scraper rod is also set to rotate in sync with the stirring rods. Since the scraper rod is in contact with the inner wall of the device, it enables the coolant to react rapidly with barium hydroxide for cooling purposes, while also preventing any deposits from forming on the inner wall.