Meta-synthesis construction method of 600MW unit bag-type dust remover

Abstract

The invention relates to an installation method of a bag-type dust remover with large unit capacity, in particular to a metal-synthesis construction method of a 600MW unit bag-type dust remover, which solves the technical problem that the bag-type dust remover is applied and installed on a 600MW generator set. The metal-synthesis construction method comprises the following steps of: installing a rail (14) on the ground, arranging a crane (15) on the rail (14), starting crane-removing installation from the position of an eighth unit, gradually dismantling the rail that is out of action at the same time of the crane removal, putting a small-size gantry crane on well-installed front and rear walls formed by wallboards when the installation is removed to a fifth unit in sequence, ensuring that the crane (15) and the gantry crane (16) work simultaneously, and hoisting to a first unit in sequence and finishing the construction. In the process, the Zhangshan bag-type dust remover is used for constructing for the first time; by innovating the thought and reasonably using construction machinery, a gibbet is used at the early stage, and an electric hoist is used at the later stage, therefore, the working face is increased, the labor efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to an installation method of a bag filter with a large unit capacity, in particular to a comprehensive and integrated construction method for a bag filter of a 600MW unit. Background technique [0002] The bag filter is a dry dust removal device. The working mechanism of the bag filter is that the dusty flue gas passes through the filter material, and the dust particles are filtered. It has the characteristics of strong ability, high dust removal efficiency and low emission concentration. It also has the characteristics of stability and reliability, low air consumption and small footprint. It is especially suitable for dealing with flue gas with large air volume. In this process, the dust contained in the flue gas is filtered by the bag and collected on the outer surface of the bag. After such a process, what comes out of the cloth bag is clean flue gas, which can be discharged into the high-altitude atmosphere through the chimne...

AI Technical Summary

Problems solved by technology

In some large-capacity power plants in China, such as 600MW units, the bag filter is used. The total weight of the steel structure installation part is about 1786 tons, and the installation filter area is about 72200m2 2 , the span of a single bag filter is 70 meters, and there are buildings in the front and back. The construction site is narrow and the structure is compact. , There is no experience that can be borrowed from commissioning to trial operation, which increases the difficulty of construction

According to the traditional construction method, it is impossible to construct. At present, there is no precedent for installation and construction on such occasions in China.

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