Simple-and-accurate-positioning blast furnace shell upside-down charging method

A blast furnace shell and accurate technology, applied in the blast furnace, blast furnace details, blast furnace parts, etc., can solve the problems of furnace belt lifting, inability to carry out formal installation, limited driving height, etc., to speed up the construction progress, reduce construction costs, and easy to operate Effect

Inactive Publication Date: 2015-03-25
CHINA 19TH METALLURGICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited driving height on the top of the blast furnace (the distance between the lower part of the driving car and the top of the hob is small), it is impossible to lift the furnace belt above the hob by driving and move it horizontally before putting it into the hob
Therefore it is not possible to dress

Method used

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  • Simple-and-accurate-positioning blast furnace shell upside-down charging method
  • Simple-and-accurate-positioning blast furnace shell upside-down charging method
  • Simple-and-accurate-positioning blast furnace shell upside-down charging method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] see figure 1 Part of the platform is removed at the tuyere platform on the lower side of the furnace frame 1 as the opening of the furnace shell transportation channel, and a temporary moving platform is installed on the temporary moving platform. Beams 2, the distance between two moving beams 2 is greater than the maximum diameter of the blast furnace. A track 3 is arranged on the push beam, and the push cart 4 is rolled on the track by the roller 5 at the bottom. The car is connected.

[0030] The furnace shell is composed of 16 furnace belts from bottom to top, which are sequentially composed of the first furnace belt 101, the second furnace belt 102,..., and the sixteenth furnace belt 1016.

[0031] The method of combining the upside down and the upside down of the blast furnace shell is as follows.

[0032] see figure 2 , tran...

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Abstract

The invention provides a blast furnace shell upside-down charging method. The method is especially suitable for modifying a blast furnace surrounded by a furnace frame, and can reduce the construction cost, accelerate the construction speed and accurately position a furnace zone. The blast furnace shell upside-down charging method comprises the following steps: sending an nth furnace zone into the furnace frame at an opening at one side of the lower portion of the furnace frame, lifting the nth furnace zone through the working of the upper portion of the furnace frame, aligning, and fixing the circumference of the nth furnace zone to the furnace frame; and sending an mth furnace zone into the furnace frame from the opening, lifting the mth furnace zone through working, aligning, and butt-welding the mth furnace zone to an (m+1)th furnace zone, wherein m=n-1, n-2, ..., 2,1, and n is a natural number; and when aligned, a cross curve drawing method is adopted to find the center of the blast furnace, a suspension line is drawn, and the error between the center of the furnace zone and the center of the blast furnace is determined through the circular motion of a long fine line and a short fine line around the suspension line according to the distances of eight outside labels to the outer ring of the furnace zone and a distance of one end of the short fine line away from the suspension line to the inner ring of the furnace zone.

Description

technical field [0001] The invention relates to a method for inverting a blast furnace shell in a furnace rack (blast furnace frame), in particular to a method for inverting a blast furnace shell with simple and accurate positioning. Background technique [0002] The blast furnace shell is sequentially composed of the first furnace zone, the second furnace zone and the nth furnace zone from bottom to top. When installing a blast furnace, the normal installation method is generally adopted, that is, the first furnace belt is installed first, then the second furnace belt is hoisted (lifted), and the second furnace belt and the first furnace belt are butt-welded, so that from bottom to top Install each furnace belt in turn. [0003] For the reconstruction of the old blast furnace, because the blast furnace is surrounded by the furnace rack (blast furnace frame), generally in order to save investment, the original old blast furnace frame is used to update the blast furnace or e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/00
Inventor 王进袁春阳谢德斌申斌贾玲
Owner CHINA 19TH METALLURGICAL CORP
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