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Device and method for progressive fine adjustment of the roundness at lower edge of blast furnace shell

A blast furnace shell and progressive technology, which is applied in the field of devices for progressively fine-tuning the roundness of the lower edge of the blast furnace shell, can solve the problems of the thick furnace shell and the difficulty in controlling the roundness of the lower edge, so as to reduce the support pressure and reduce the insecurity. factors, the effect of ensuring accuracy

Inactive Publication Date: 2020-09-18
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to meet the requirements of the blast furnace shell group on the circularity and edge fit, and to solve the problem that the shell is relatively thick and the roundness of the lower edge is not easy to control, the present invention provides a device for gradually fine-tuning the roundness of the lower edge of the blast furnace shell and method, the lower edge of the furnace shell is gradually corrected under the action of gradually applied force, which is simple to operate, convenient and reliable to use

Method used

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  • Device and method for progressive fine adjustment of the roundness at lower edge of blast furnace shell
  • Device and method for progressive fine adjustment of the roundness at lower edge of blast furnace shell

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Experimental program
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Embodiment 1

[0036] combine figure 1 and figure 2 , a device for progressively fine-tuning the roundness of the lower edge of the blast furnace shell in this embodiment, including a positioning block 1, an anti-slip pad 2, a wedge-shaped positioning group 3, a support plate 5 and a pair of molds 6, the described The positioning block 1 and the support plate 5 are both arranged on the pair of molds 6 with a certain distance between them. The furnace shell 4 is placed in the gap and leans against the support plate 5. The wedge-shaped positioning group 3 is set on the positioning Between the block 1 and the furnace shell 4, the anti-slip pad 2 is arranged on the side of the positioning block 1 close to the wedge-shaped positioning group 3, and through the action of the wedge-shaped positioning group 3, the roundness of the lower edge of the blast furnace shell 4 is fine-tuned.

[0037] The pair of tires 6 includes 12 supporting backing plates, and the 12 supporting backing plates share a ce...

Embodiment 2

[0041] A method for progressively fine-tuning the roundness of the lower edge of the blast furnace shell in this embodiment includes the following steps:

[0042] Step 1. Set up the pairing mold 6 and level it

[0043] Harden the ground, locate the center of the circle, divide the circle into 12 equal parts, use No. 20 I-beam as the support plate, set the support plate radially and level it.

[0044] Step 2. Install positioning block 1, anti-slip pad 2 and support plate 5

[0045] For the measurement and setting out of the diameter of the blast furnace, according to the size of the furnace shell 4, the positioning block 1 and the support plate 5 are welded on the support plate, and the positioning block 1 is made of a steel plate with a length*width*thickness of 100mm*50mm*50mm Manufactured; the support plate 5 is made of a special-shaped steel plate with a length*width*thickness of 100mm*60mm*20mm; the length*width*thickness of the anti-slip pad 2 is 120mm*60mm*10mm.

[004...

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Abstract

The invention discloses a device and a method for progressive fine adjustment of the roundness at the lower edge of a blast furnace shell and belongs to the technical field of roundness control of theblast furnace shell in an iron-making system. The fine adjustment device comprises a positioning stop dog, a wedge-shape positioning group, a support plate and paired positioners; the paired positioners comprise a plurality of support base plates sharing the circle center and radially distributed; the positioning stop dog and the support plate are arranged on the support base plate at certain interval; the furnace shell is placed in the interval and is supported by the support plate; the wedge-shape positioning group comprises two steel wedges placed between the furnace shell and the positioning stop dog; and an anti-sliding pad is arranged between the wedge-shape positioning group and the positioning stop dog. When the device is adopted for fine adjustment, the two steel wedges are sequentially placed in, the second steel wedge is knocked in a progressive manner to adjust the interval distance, so that the lower edge of the furnace shell is propped against the support plate to reachthe fine adjustment effect; and through arranging the anti-sliding pad, the wedge-shape positioning group is always between the furnace shell and the positioning stop dog when a worker knocks the wedge-shape positioning group to ensure the fine adjustment effect.

Description

technical field [0001] The invention relates to the technical field of roundness control of a blast furnace shell in an ironmaking system, and more specifically relates to a device and method for gradually fine-tuning the roundness of the lower edge of a blast furnace shell. Background technique [0002] The shell of the blast furnace is made by rolling the steel plate into tiles through a roller bed. After the single tile of the furnace shell is transported to the site, each belt is assembled and welded on the assembly platform. Assemble according to the typesetting diagram and number of the factory when it leaves the factory, measure the center displacement, ellipticity, level difference of the top edge, misalignment amount of the matching edge, gap at the end of the groove, etc. of each belt, and assemble and weld the hoisting unit after meeting the requirements. [0003] As an important part of the blast furnace body, the blast furnace shell plays an extremely important ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D1/08B21D43/00
CPCB21D1/08B21D43/003
Inventor 胡巍单博龙
Owner CHINA MCC17 GRP