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Device and method for measuring deformation angle of small sleeve and medium sleeve of blast-furnace tuyere

A technology of small tuyeres and blast furnaces, applied in tuyeres, inspection devices, angle/taper measurement, etc., can solve problems such as lack of scientificity and accuracy, difficulty in adapting to production needs, drooping of small tuyeres, etc., and achieve a matching operation method Ease of operation, low cost and simple structure

Active Publication Date: 2011-06-22
INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to abnormal operation of the furnace, material sitting or material collapse may also cause the small sleeve of the tuyere to be bent and cause sagging
Therefore, we need to accurately measure the upturning or drooping angle of the tuyere small sleeve and the middle sleeve to provide data support for us to understand the degree of deformation and make accurate corrections. It is difficult to adapt to the needs of actual production because of the lack of scientificity and accuracy.

Method used

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  • Device and method for measuring deformation angle of small sleeve and medium sleeve of blast-furnace tuyere
  • Device and method for measuring deformation angle of small sleeve and medium sleeve of blast-furnace tuyere
  • Device and method for measuring deformation angle of small sleeve and medium sleeve of blast-furnace tuyere

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 as figure 1 Shown is a typical device for measuring the deformation angle of the small or middle tuyere of a blast furnace, which includes a measuring rod 1, a scale 2 and a weight 3, and the scale is connected to one end of the measuring rod in a manner parallel to the axis of the measuring rod Tightly connected, the other end of the measuring rod can be matched with one end face of the small sleeve or the middle sleeve of the blast furnace tuyere, the weight is set on the measuring rod or the scale through a cycloid 4, and when the scale is at position, the cycloid can point to different scale values ​​on the scale. In particular, it should be pointed out that when the scale is in the horizontal position, the cycloid intersects the scale vertically and points to the center scale value on the scale.

[0028] The application principle of the device for measuring the deformation angle of the small or middle sleeve of the blast furnace tuyere is as follows: f...

Embodiment 2

[0033] Example 2 as image 3 As shown, the basic structure of the device for measuring the deformation angle of the small or middle tuyere of a blast furnace is similar to that of Embodiment 1, but the measuring rod 1i is a tapered structure whose front end is smaller than the rear end, and its scale 2' is a right-angled trapezoidal structure. The working principle and application method of the device for measuring the deformation angle of the small or middle sleeve of the tuyere of a blast furnace are the same as those in Embodiment 1.

Embodiment 3

[0034] Example 3 as Figure 4 As shown, the basic structure of the device for measuring the deformation angle of the small or middle tuyere of a blast furnace is similar to that of Example 1, but the measuring rod 1ii is a configuration composed of a rod-shaped member and a truncated cone-shaped member.

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Abstract

The invention provides a device and a method for measuring the deformation angle of a small sleeve and a medium sleeve of a blast-furnace tuyere. The device comprises a measuring rod, a thin wire, a graduated scale and a heavy bob. When the device is used, one end of the measuring rod is attached to the surface of a small sleeve and a medium sleeve of a tuyere to obtain the distance between a cycloid deviating and a central scale so as to calculate the vertical deformation angle of the small sleeve and the medium sleeve with the arctan function. The device can accurately measure the bending upward angle or drooping angle of the small sleeve and the medium sleeve of the tuyere, provides data support for finding out the deformation degree and carrying out accurate regulation, is convenient for measurement and can work without blowing down in normal production of a blast furnace. The device has simple structure, low cost, easy and convenient matching operation method and can effectively ensure the personal safety of an operator. The device also can be widely applied to deformation angle measuring process of other special equipment.

Description

technical field [0001] The invention relates to a detection device and method for a small or middle tuyere sleeve of a blast furnace in the technical field of blast furnace ironmaking, in particular to a device capable of measuring the deformation angle of a small or middle tuyere sleeve in the vertical direction under normal production conditions of a blast furnace Apparatus and methods. Background technique [0002] In production practice, due to the physical or chemical erosion of the tuyere bricks and carbon bricks in the blast furnace, the brick body loosens and expands, causing the tuyere to warp. The direct harm of the upturned tuyere is the decomposition of the kinetic energy of the blast. As a result, the central air flow is insufficient, the edge of the hearth is easy to stick, and in severe cases, the lower part of the tuyere will be worn by pulverized coal. Therefore, blast furnace producers usually need to take advantage of the timing of planned maintenance to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/16G01B5/24C21B7/24
Inventor 赵华涛
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE