In the reaction process of carbonate desulfurization lead paste, the produced PbCO₃ is easily wrapped in the outer periphery of PbSO₄ to form a product layer, hindering the mass transfer process. Therefore, it is necessary to break the PbCO₃ product layer. In this work, the rotor stator-reinforced reactor (RS-RR) was selected as the enhanced desulfurization reactor for the purpose of breaking the PbCO₃ product layer and promoting mass transfer. The breakage process of the PbCO₃ product layer generated during the PbSO₄ desulfurization was modeled. Computational fluid dynamics simulation to the rotation conditions was carried out to theoretically analyze the fluid flow characteristics of PbSO₄ slurry and the wall shear stress affecting the breakage of PbCO₃ product layer. By optimizing the rotation conditions, the distribution ratio of effective rotor wall shear stress range achieved 96.1%, and the stator wall shear stress range reached 99.15% under a rotation of 2000 r·min⁻¹. The research work provides a reference for analysis of the mechanism of product layer breakage in the PbSO₄ desulfurization process, and gives a clear and intuitive systematic study on the fluid flow characteristics and wall shear stress of the desulfurization reactor.

碳酸盐脱硫铅膏反应过程中，生成的PbCO _{3很容易包裹在PbSO 4}的外围，形成产物层，阻碍传质过程。因此，有必要破坏PbCO ₃产物层。本工作选择转子定子强化反应器(RS-RR)作为强化脱硫反应器，目的是破坏PbCO ₃产物层并促进传质。PbSO _{4过程中产生的PbCO 3}产物层的破碎过程对脱硫进行了建模。对旋转工况进行计算流体动力学模拟，从理论上分析了PbSO _{4浆料的流体流动特性以及影响PbCO 3}产物层破裂的壁面剪应力。通过优化旋转条件，在2000 r·min -1 转速下，有效转子壁面剪应力范围分布比例达到96.1%，定子壁面剪应力范围达到99.15 ^%。研究工作为分析PbSO ₄脱硫过程中产物层破裂的机理提供了参考，并对脱硫反应器的流体流动特性和壁面剪应力进行了清晰、直观的系统研究。