NOVELTY - The utility model claims carbon fibre production device, belonging to the technical field of data relates to one for the dimethyl sulfoxide solution recovered device. Carbon fibre production process of dimethyl sulfoxide recycling device, comprising a device for the taking dimethyl sulfoxide solution of the dewatering tower and dehydrating, dehydrating tower side of the upper wall surface is provided with a raw material inlet, and a discharging port on the bottom of the dewatering tower, the top part of the dewatering tower is provided with a waste water outlet, wherein the upper dehydrating tower is further connecting with a alkali liquid storage tank, is provided with a conveying pipeline between the storage tank and dehydrating tower, one end of the conveying pipe and the middle part of the side of the dewatering tower connecting, the other end is connected with the bottom of the storage tank connecting, the upper conveying pipeline is further equipped with the alkali liquid to the conveying pump in the dehydrating tower. The utility model is capable of adding alkali liquid to the dehydrating tower in the dimethyl sulfoxide in the recycling process, the dimethyl sulfoxide is heated to decompose, so as to guarantee the stability and safety of the device, environment, improves the recovery rate of the dimethyl sulfoxide.    USE - The device is useful for recycling dimethyl sulfoxide to prepare carbon fiber (claimed).    ADVANTAGE - The alkali liquid is added to the dehydrating tower in the dimethyl sulfoxide during the recycling process, and the dimethyl sulfoxide is heated to decompose, thus improving the stability and safety of the device in an environmental-friendly manner, and improving the recovery rate of the dimethyl sulfoxide.    DETAILED DESCRIPTION - The device comprises a dehydrating tower for dehydrating a dimethyl sulfoxide solution. A raw material inlet is arranged at a side of an upper wall surface of the dewatering tower. A discharging port is arranged on a bottom side of the dewatering tower. A waste water outlet is arranged in a top part of the dewatering tower. An alkali liquid storage tank is connected with an upper part of the dehydrating tower. A conveying pipe is connected between the storage tank and the dehydrating tower, where an end of the conveying pipe is connected with a middle part of the side of the dewatering tower, and another end of the conveying pipe is connected with the bottom of the storage tank. The conveying pipe is further equipped with an alkali liquid conveying pump. A top part of the storage tank is provided with a nitrogen inlet and a vacuum line.