The invention discloses a method for installing a branch pipe newly added to the lower portion of a roof dust removal pipeline. The method comprises the steps that firstly, two manholes are formed in a roof dust removal main pipeline; secondly, a reinforcing support is arranged in the dust removal main pipeline at the position of the newly-added branch pipe; 3, arranging a winch system on the ground; fourthly, newly-added dust removal branch pipes are assembled on the ground; fifthly, the newly-added dust removal branch pipe is lifted through the truck crane and the winch; and sixthly, the reinforcing support of the dust removal main pipeline is detached, and the manhole is sealed. The existing dust removal main pipeline is reinforced to serve as a hoisting stress point of a hoisting point at the high position of the dust removal branch pipe, the problem that hoisting at the hoisting point at the high position of the dust removal branch pipe cannot be completed through hoisting machinery is solved, and the whole hoisting operation difficulty is low. Operators can reach the connection place of the dust removal main pipeline and the dust removal branch pipe through the steel ladder on the upper roof of the steel plant, the main operation range of the operators is concentrated in the dust removal main pipeline and on the ground in the whole operation process, the high-place operation content is very few, and construction is safe.

    本发明公开一种屋顶除尘管道下部新增支管安装方法,步骤为:一、在屋顶除尘主管道上开设两个人孔;二、在新增支管位置的除尘主管道内设置加固支架;三、在地面设置卷扬机系统;四、在地面组对新增除尘支管;五、利用汽车吊和卷扬机抬吊新增除尘支管;六、拆除除尘主管道的加固支架,封闭人孔。对已有的除尘主管道进行加固,即可作为除尘支管高处吊点的吊装受力点,解决了除尘支管高处吊点无法利用起重机械完成吊装的难题,整个吊装作业难度较低。作业人员可以通过炼钢厂房上屋面的钢梯到达除尘主管道与除尘支管的连接地点,整个作业过程中,作业人员主要作业范围集中在除尘主管道内部和地面,高处作业内容非常少,施工较为安全。


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    Title :

    Installation method for newly-added branch pipe on lower portion of roof dust removal pipeline


    Additional title:

    一种屋顶除尘管道下部新增支管安装方法


    Contributors:
    YE LIANG (author) / CUI SHIJIE (author) / ZHENG ZHIFEI (author) / WAN ZHAO (author)

    Publication date :

    2024-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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