Turnover type crystallization reaction kettle for mesotrione

The turnover type crystallization reaction kettle comprises a kettle body, a supporting frame, a heat exchanger, a driver and a controller, a partition plate is arranged in the kettle body and divides an inner cavity of the kettle body into a first chamber and a second chamber which are arranged up and down, a channel communicated with the first chamber and the second chamber is arranged on the partition plate, and the first chamber is communicated with the second chamber through the channel. The channel can be closed, the kettle body is provided with a discharging port communicated with the first cavity and the second cavity, and the two heat exchangers are connected with the kettle body and adjust the temperature in the first cavity and the temperature in the second cavity through a circularly flowing refrigerant or heating medium. The kettle body is installed on the supporting frame and driven by the driver to rotate so as to vertically exchange the positions of the first cavity and the second cavity, the