The invention relates to a superlift and additional counterweight lifting method for a large crawler crane in a coke oven modification project. The superlift and additional counterweight lifting method is characterized by comprising the following steps of: a, superlift a 1000-ton crawler belt of an end platform; b, the hoisting radius of the intermediate platform 1250-ton crawler crane is kept to be 16 meters unchanged; c, the main truss bypasses the crawler crane to the front of the coke oven; d, double-crane hoisting: the two crawler cranes hook for 10 meters again to hoist the steel truss to bypass the crawler crane to the front of the coke oven to drop the hook, so that the bottom of the main steel truss is 0.5 m away from the ground; and e, double-crane load state: a certain amount of superlift counterweight is added to the end platform 1000-ton crawler crane, and the hoisting radius of the intermediate platform 1250-ton crawler crane is kept to be 16 meters. And f, hoisting and rotating the double cranes to a falling hook mounting position, and completing hoisting of the single-truss main truss within 7.5 hours. The method has the advantages that the main truss is dragged and assembled in sections, the coke oven production is not influenced, the hoisting is completed under the super-lifting working condition of the large crawler crane and the additional counterweight working condition, the hoisting process is 7.5 hours, the coke oven maintenance time requirement is met, the economic benefit is created, and the safety coefficient is high.

    一种焦炉改造工程大型履带吊超起及附加配重抬吊方法,其特征在于包括以下步骤:a、端台1000吨履带吊带超起;间台1250吨履带吊不带超起,b、间台1250吨履带吊吊装半径保持16米不变,c、主桁架绕过履带吊至焦炉前,d、双机抬吊,两台履带吊再起钩10米将钢桁架抬吊绕过履带吊到焦炉炉前落钩使主钢桁架底部离地0.5m,e、双机负荷状态,端台1000吨履带吊增加一定量超起配重,f、双机起吊旋转至安装落钩位置,单榀主桁架7.5小时完成吊装。本发明具有主桁架分段牵引拼装,不影响焦炉生产,大型履带吊超起工况、附加配重工况完成吊装,吊装过程7.5小时,满足焦炉检修时间要求,创造经济效益和安全系数高的优点。


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    Titel :

    Super-lifting and additional counterweight lifting method for large crawler crane in coke oven modification project


    Weitere Titelangaben:

    一种焦炉改造工程大型履带吊超起及附加配重抬吊方法


    Beteiligte:
    HE XIANG (Autor:in) / HE BIN (Autor:in) / YANG MENG (Autor:in) / ZHAO HONGHAO (Autor:in) / SHI YONGGAO (Autor:in) / WANG JIA (Autor:in) / WU HAIFENG (Autor:in)

    Erscheinungsdatum :

    2023-11-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS



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