Installation and construction method of large steel silo

Abstract

The invention discloses an installation and construction method of a large steel material bin. The installation and construction method comprises steps as follows: a bottom plate is installed on a foundation platform firstly, a first cylindrical shell section is installed on the bottom plate, a conic vertex is installed on the first cylindrical shell section to form a bell jar structure, then a second cylindrical shell section is assembled on the periphery of the first cylindrical shell section, a vertical seam splicing port without tight splicing is reserved in the second cylindrical shell section and is taken as an open port, gaps between the second cylindrical shell section and the bottom plate as well as between the first cylindrical shell section and the second cylindrical shell section are sealed with rubber plates, a blast apparatus is adopted to blast air to the bell jar structure, the bell jar structure ascends to be higher than the second cylindrical shell section, the open port of the second cylindrical shell section is retracted, the first cylindrical shell section and the second cylindrical shell section are assembled and spliced, remaining cylindrical shell sections are installed sequentially with the same method, and the installation of the large steel material bin is completed finally. According to the installation and construction method, working at heights is changed into working in lower positions, the safety of construction can be improved, resources and constriction cost are saved, the working efficiency is improved, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of installation and construction of large industrial equipment, in particular to a method for installation and construction of a large steel silo. Background technique [0002] Large-scale steel silos are widely used in industrial installation projects to contain granular solid substances. They are large-scale industrial equipment and have the characteristics of large diameter, height and weight. Most of this type of equipment is a flat-bottomed cone-top structure, which is composed of a foundation, a bottom plate, a cylinder, and a cone top. The foundation is generally a hollow cylinder several meters above the ground, and there are 5 feeding ports arranged in a plum blossom shape on the top of the foundation. , The steel silo is installed on the top surface of the foundation. The cone top bears the weight of the feeding device, and its skeleton is a truss group structure, so its own weight is relatively la...

AI Technical Summary

Problems solved by technology

The disadvantages of the above two methods are: the frontal installation method needs to set up temporary devices for finding circles and scaffolding, and requires large-scale hoisting machinery, which requires high-altitude operations and high risk; although the inversion method does not have high-altitude operations, it needs to use dozens of sets of hoisting equipment. Mechanical equipment, the use of machinery is very expensive, and a lifting device needs to be installed

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