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Installation and construction method of large steel silo

A construction method and technology of steel materials, applied in the processing of building materials, large-capacity bulk material storage, building types, etc., can solve the problems of high-altitude operations, high cost of machinery use, high risk, etc., to achieve short construction period and save Construction cost, effect of increasing safety

Active Publication Date: 2017-12-08
THE FIRST ENG CO LTD OF THE 23TH METALLURGICAL CONSTR GRP MINMETALS
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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

Method used

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  • Installation and construction method of large steel silo
  • Installation and construction method of large steel silo
  • Installation and construction method of large steel silo

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Take the installation and construction of a 16,000t alumina large-scale steel silo in a factory as an example. The model of the large-scale steel silo is Φ30m×27.4m, the diameter of the cylinder is 30m, and the height is 27.4m. The cylinder is composed of 14 sections. The total weight of the steel silo is 586t, the maximum gas lifting weight is 458t, and the maximum gas lifting pressure required is 768mmH 2 O, that is 0.0768atm or 0.0768Kgf / cm 2 .

[0027] Such as figure 1 As shown, the installation and construction method of the above-mentioned large steel silo specifically includes the following steps:

[0028] (1) Installation of the bottom plate 11, the first barrel section 7 and the cone top 12:

[0029] On the top of the foundation platform 14, a plurality of arcuate plates are spliced ​​piece by piece to form an annu...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H7/30E04G21/00
CPCE04G21/00E04H7/30
Inventor 胡四元万克祥聂晓铁
Owner THE FIRST ENG CO LTD OF THE 23TH METALLURGICAL CONSTR GRP MINMETALS
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