Integral hydraulic jacking inverted construction method of large converter

A construction method and technology of large-scale converters, applied in the direction of manufacturing converters, etc., can solve the problems of difficult installation precision control, inability to work in welding, and narrow installation sites, and achieve the effects of shortening the installation period, reducing construction costs, and facilitating construction.

Active Publication Date: 2011-04-13
TIANJIN 20 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. There is no large crane across the furnace in the converter workshop, and the installation site is narrow, and there is no working space for lifting equipment such as large cranes
[0004] 2. The main parts of the converter body are

Method used

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  • Integral hydraulic jacking inverted construction method of large converter
  • Integral hydraulic jacking inverted construction method of large converter
  • Integral hydraulic jacking inverted construction method of large converter

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Example Embodiment

[0016] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0017] A construction method of integral hydraulic jacking and inversion for large-scale converter:

[0018] 1) Construction preparation

[0019] 1) Weld the furnace shell to form a whole.

[0020] 2) Making the furnace shell bracket for supporting the furnace shell and the integral bracket for supporting the furnace shell and the trunnion ring.

[0021] 3) Make a false shaft for hanging assembly; make a positioning block between the inner side of the hanging ear seat and the hanging connecting rod.

[0022] 4) Make the limit block of the furnace shell.

[0023] 5) A reverse chain is arranged on the other side of the converter foundation for the forward movement of the molten steel tanker.

[0024] Two) Construction steps:

[0025] 1) See figure 1 , At the feeding span, fix th...

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Abstract

The invention discloses an integral hydraulic jacking inverted construction method of a large converter, comprising the following steps: 1) in an additive bay, fixedly installing a converter shell bracket and an integral bracket on a ladle car, and building an erecting stage on the integral bracket; 2) successively inverting and hoisting the welded converter shell and backing ring which are welded into a whole on the converter shell bracket and the integral bracket, respectively adjusting the positions of the converter shell and the backing ring by a hydraulic jack to cause the relative positions of the converter shell and the backing ring to satisfy a design requirement, and ensuring that a center elevation is bigger than a designed elevation; 3) installing and hanging; 4) moving the ladle car to transport the converter to the base of the converter, finishing installation of a trunnion bearing pedestal before transporting; and 5) lowering the backing ring to cause the bearing pedestal to land on the base, and fixing after adjusting. In the invention, the phenomenon that the additive bay of a converter workshop uses a large crane is avoided, a jack is adopted to adjust the positions of the backing ring and the converter shell, and construction is convenient. The converter is assembled in the mode that the backing ring and the converter shell are inverted, and hoisting and welding are easy to operate.

Description

technical field [0001] The invention relates to an installation method of steelmaking equipment, in particular to a construction method of hydraulic jacking and inversion construction of a large-scale converter as a whole. Background technique [0002] The main body of the converter is mainly composed of supporting rings, furnace shells, suspensions, trunnion supports and tilting devices. The components are bulky, heavy, complex in structure and require high installation accuracy. The main difficulties in installation and construction are: [0003] 1. There is no large crown crane across the furnace in the converter workshop, and the installation site is narrow, and there is no working space for lifting equipment such as large cranes. [0004] 2. The main components of the converter body are bulky and heavy, and it is difficult to control the installation accuracy. [0005] 3. The gap between the horizontal suspension, the support ring and the furnace shell is narrow, and ...

Claims

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Application Information

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IPC IPC(8): C21C5/28C21C5/42
Inventor 魏宝武
Owner TIANJIN 20 CONSTR
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