The superheater of 220 T/ h high pressure steam boiler is massive and large-tonnage superheater and the boiler project and civil installation construction are in interlace operation condition. Based on above reasons the divisional barbed hoisting plan is proposed. 220t/h高温高压蒸汽锅炉过热器为大体积、大吨位,且锅炉工程与土建安装施工处于交叉作业状态,场地又狭窄,基于上述原因,提出了分部倒钩吊装方案。