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分析了脱气输送机螺旋的受力情况，给出了螺旋轴向力的计算公式，研究结果对压差式输送螺旋的设计具有普遍的指导意义。
The stress of the helix of the degassing conveyor is analyzed and the calculation formula of the helical axial force is given. The research results have a general guiding significance for the design of the differential conveying helix.