Deoxidation method for improving cleanliness of aluminum deoxidized steel

The invention discloses a deoxidation method for improving cleanliness of aluminum deoxidized steel, which reduces deoxidation products and reduces the number of inclusions in the steel through composite deoxidation of a carbonaceous material and an aluminum-iron alloy in the tapping process of a converter. The converter blows argon and taps steel in the whole process, carbonaceous materials are added into a steel ladle in multiple batches, and aluminum iron alloy, active lime and a calcium-series top slag modifier are added to conduct denaturation treatment on inclusions. A test shows that B, D and Ds inclusions of steel types such as 34MnB5 produced by the process are within 1.0 grade (most of the inclusions are within 0.5 grade and below), the development of the steel types with harsh requirements on the inclusions is fully guaranteed, and the process has a great demonstration effect and popularization value on the production research of subsequent similar products; a carbonaceous material is adopted to re