Chlorinated polyethylene reaction kettle powder additive adding device

The utility model belongs to the technical field of chemical machinery, and particularly relates to a chlorinated polyethylene reaction kettle powder additive adding device which comprises a chlorination kettle, a hydrochloric acid feeding port is formed in the chlorination kettle and connected with a hydrochloric acid pump through a hydrochloric acid pipeline, and an ejector is arranged on the hydrochloric acid pipeline. And a separant feed port on the ejector is connected with a discharge port at the bottom of the separant hopper. According to the device disclosed by the utility model, an auxiliary agent needing to be added is sucked into the hopper by utilizing the jet pump principle and then is added into the reaction kettle through the acid inlet pipeline, so that the dust condition can be basically avoided, and moreover, an induced draft fan is not needed in the feeding process, so that the auxiliary agent can be effectively prevented from being sucked into the tail gas pipeline, and on one hand, materi