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Device and method for measuring and adjusting roundness of shell wall of hot blast stove

A technology for hot blast stoves and furnace shells, which is applied in the direction of measuring devices, mechanical measuring devices, and mechanical devices, etc., which can solve the problems of thick and heavy hot blast stove shells and difficult roundness control, so as to reduce potential safety hazards, ensure effectiveness, and prolong The effect of service life

Active Publication Date: 2022-02-25
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the shell of the hot blast stove is relatively thick and it is difficult to control the roundness of it by conventional methods after assembly and molding, the invention proposes a device and method for measuring and adjusting the roundness of the shell wall of the hot blast stove, which can measure various positions of the shell Roundness and adjustment, flexible and easy to use

Method used

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  • Device and method for measuring and adjusting roundness of shell wall of hot blast stove
  • Device and method for measuring and adjusting roundness of shell wall of hot blast stove
  • Device and method for measuring and adjusting roundness of shell wall of hot blast stove

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Embodiment 1

[0034] combine figure 1 with figure 2 , A device for measuring and adjusting the roundness of the shell wall of a hot blast stove in this embodiment includes a backing plate 1, an inner column support 2, a bearing 3, a steel sleeve 4, a correction mechanism, a jacking mechanism and a pair of molds 9. The jacking mechanism uses a vertical jack 7, the vertical jack 7 is fixed on the ground, its jacking end is fixed on one side of the backing plate 1, and the bottom end of the inner column support 2 is welded on the backing plate 1. In this embodiment, the inner Column support 2 is made of DN80 steel pipe. The inner column support 2 can move in the vertical direction under the jacking action of the vertical jack 7 .

[0035] The pair of tires 9 includes 12 support pads, the 12 support pads are arranged radially with the inner column support 2 as the center of circle, and each support pad is provided with 2 blocks; during construction, The furnace shell 8 is hoisted to the pai...

Embodiment 2

[0040] A method for measuring and adjusting the roundness of the shell wall of a hot blast stove in this embodiment uses the measuring and adjusting device described in Embodiment 1, and the steps are:

[0041] Step 1. Measure the center point of the shell 8 for setting out the wires, install the vertical jack 7 and the backing plate 1 on the center point, and level the two; weld the inner column support 2 vertically on the backing plate 1, and Adjust its verticality; ensure that the center points at different heights are consistent, so as to ensure the reliability of the calibration circle.

[0042] Install the correcting mechanism so that the length of the arc correcting beam 5 is 20mm shorter than the diameter of the furnace shell 8 to be measured and adjusted, so as to prevent the furnace shell 8 from being unable to rotate in the deformed area;

[0043] Set up a pair of molds 9 around the inner column support 2, and set two stoppers on it according to the diameter of the ...

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Abstract

A device and method for measuring and adjusting the roundness of a shell wall of a hot blast stove according to the invention belong to the technical field of roundness control of the shell wall in an ironmaking system. The invention includes an inner column support, a correcting mechanism and a jacking mechanism; one end of the correcting mechanism is rotatably connected to the inner column support through a bearing, and the other end is close to the furnace shell, which includes an arc correcting beam and a horizontal jack, both of which rotate around the inner column support; The lifting mechanism is set at the bottom of the inner column support, so that the inner column support and the correction mechanism move in the vertical direction; the correction mechanism cooperates with the jacking mechanism to measure and adjust the roundness of each position of the furnace shell through a horizontal jack. In addition, there are multiple combinations of arc correcting beams and horizontal jacks, which are arranged at intervals on the support of the inner column, so that the furnace shell at different positions can be measured and adjusted at the same time, and the efficiency of the measurement and adjustment can be improved. When the device of the present invention is used for measurement and adjustment, one arc-correcting beam can be selected to measure and adjust the roundness, and other arc-correcting beams can support the furnace shell to ensure the measurement and adjustment effect and reduce potential safety hazards.

Description

technical field [0001] The invention belongs to the technical field of roundness control of a furnace shell wall in an ironmaking system, and more specifically relates to a device and method for measuring and adjusting the roundness of a shell wall of a hot blast stove. Background technique [0002] The hot blast stove shell, as an important part of the hot blast stove body, plays an extremely important role. The roundness control of the shell assembly and installation of the hot blast stove not only affects the combustion balance of the hot blast stove and the efficiency of hot air delivery, but also correlates with the length of the service life of the stove. [0003] Assembling the shell of the hot blast stove, the roundness of the shell wall is an important control point. The common roundness measurement and control methods of the hot blast stove shell include the diameter re-measurement method, the arc detection method, the auxiliary high-temperature heating deviation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B9/10G01B5/20
CPCC21B9/10G01B5/201
Inventor 胡巍单博龙
Owner CHINA MCC17 GRP
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