Reaction kettle for producing biphenyl dimethyl ether

The reaction kettle comprises a kettle body, a heating pipe, a supporting rod and a power assembly, the heating pipe is rotatably arranged in the kettle body, the input end of the heating pipe is connected with a water inlet pipe through a rotary joint, the output end of the heating pipe is connected with a water outlet pipe through a rotary joint, and the water outlet pipe is connected with the heating pipe through a rotary joint. A plurality of groups of supporting rods are arranged, one end of each supporting rod abuts against the inner wall of the kettle body, and the power assembly is arranged on the kettle body and used for driving the heating pipe to rotate. According to the reaction kettle, the power assembly drives the heating pipe to rotate in the kettle body, so that all parts in the kettle body are uniformly heated, raw materials in the kettle body are uniformly heated, and meanwhile, the supporting rod stirs the raw materials in the kettle body, supports the heating pipe and prevents the heating