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大型垃圾焚烧发电厂建安工程塔吊布置研究及应用

2021-01-12何志华

今日自动化 2021年11期

何志华

[摘    要]社会经济发展人民生活水平提高,资源消耗越来越大,越来越多的城市遭垃圾围困。传统垃圾处理方式为将垃圾运至填埋场填埋,但是垃圾填埋场占地十分庞大,塑料垃圾降解速度极其缓慢,垃圾产生的渗滤液和分解产生的气体对环境二次污染。垃圾焚烧发电是目前主流垃圾处理方式,实现垃圾减量化、无害化、资源化,既避免填埋占地和污染,又利用余热进行发电,一举三得。在环保高要求大环境下,垃圾焚烧发电厂投资将日益增加。

[关键词]垃圾焚烧发电厂;密集;塔吊;吊装

[中图分类号]F426.92 [文献标志码]A [文章编号]2095–6487(2021)11–00–03

Research and Application of Tower Crane Layout in Construction and

Installation Project of Large Waste Incineration Power Plant

He Zhi-hua

[Abstract]With the development of social economy, the improvement of people's living standards, the consumption of resources is increasing, and more and more cities are besieged by garbage. The traditional waste treatment method is to transport the waste to the landfill for landfill, but the landfill covers a huge area, the degradation rate of plastic waste is extremely slow, and the leachate and gas produced by waste decomposition cause secondary pollution to the environment. Waste incineration power generation is the mainstream waste treatment method at present, which realizes waste reduction, harmlessness and recycling, not only avoids landfill land occupation and pollution, but also uses waste heat for power generation, killing three birds with one stone. In the environment with high requirements for environmental protection, the investment in waste incineration power plants will increase day by day.

[Keywords]waste incineration power plant; concentrated; tower crane; hoisting

垃圾焚烧发电厂具有布局紧凑、场地狭小及工程量大的特点,因此需要在工程建设阶段考虑布置塔吊进行吊装作业,满足材料设备的垂直运输需求。如何从经济性、实用性上统筹兼顾解决这一需求意义重大。

以宝安老虎坑垃圾焚烧发电厂三期工程为例。厂区总占地面积:120 766 m2;建筑面积:16万 m2。布置包括焚烧炉:5×850 t/d;余热锅炉:5×109 t/h,4.0 MPa(a)/400 ℃;5条烟气净化处理线;凝汽式汽轮机:3×45 MW,发电机3×50 MW。

有效解决垃圾发电厂建安垂直吊装作业问题并以此增加施工作业面,意义十分重大。

1 主要解决的问题

本工程场地狭小,建筑安装起重量大。解决场地小塔吊布置及选型;解决建筑安装关键路径塔吊的使用;解决塔吊最优化使用问题;解决塔吊碰撞问题;解决塔吊使用安全管理。

1.1 塔吊布置及选型

按三期厂区平面布置图,厂区划分为主厂房区域、综合楼区域、清水池区域三大区域。……

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