Method for detecting cracking of furnace skin of blast furnace
A blast furnace cracking technology, applied in the direction of inspection devices, etc., can solve problems such as excessive gas concentration, staff unable to work, failure to find problems and deal with faults, etc., to achieve fast cracking and avoid burn-through effects
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Embodiment 1
[0033] Present embodiment is for example embodiment on the ironmaking furnace of 1650 cubic meters, and the circumference of this furnace is 42m. The material of the furnace shell is Q235B, and its expansion coefficient is 10~13×10 -6 m / °C.
[0034] This embodiment includes the following steps in sequence:
[0035] 1. When it is judged that the suspected blast furnace skin 1 has a crack mark 6, on both sides of the suspected crack mark 6, two first angle steels 5 and second angle steels 7 in the vertical direction of ∠30×30×4 are symmetrically welded, see figure 1 , wherein one angle steel and the second angle steel 7 are targets, and the other angle steel, that is, the first angle steel 5, is equipped with a displacement sensor 4, and the end 8 of the displacement sensor 4 (i.e., the signal input end) is connected to the symmetrical angle steel, that is, the second angle steel 7. The vertical surface is in contact, and the state is set to 0 at this time. The distance b...
Embodiment 2
[0041] Present embodiment is implemented on the ironmaking furnace of 1650 cubic meters, and the circumference of this furnace is 42m. The material of the furnace shell is Q235B, and its expansion coefficient is 10~13×10 -6 m / °C.
[0042] This embodiment includes the following steps in sequence:
[0043] 1. When it is judged that the suspected blast furnace skin 1 has a crack mark 6, on both sides of the suspected crack mark 6, two first angle steels 5 and second angle steels 7 in the vertical direction of ∠30×30×4 are symmetrically welded, see Describe the installation diagram of the displacement sensor, i.e. figure 1 , wherein one angle steel and the second angle steel 7 are targets, and the other angle steel, namely the first angle steel 5, is equipped with a displacement sensor in a hole, and the end 8 of the displacement sensor is in contact with the vertical surface of the symmetrical angle steel, that is, the second angle steel 7. Set to 0. The distance b...
Embodiment 3
[0049] Present embodiment is implemented on the ironmaking furnace of 1650 cubic meters, and the circumference of this furnace is 42m. The material of the furnace shell is Q235B, and its expansion coefficient is 10~13×10 -6 m / °C.
[0050] This embodiment includes the following steps in sequence:
[0051] 1. When it is judged that the suspected blast furnace skin 1 has a crack mark 6, on both sides of the suspected crack mark 6, two first angle steels 5 and second angle steels 7 in the vertical direction of ∠30×30×4 are symmetrically welded, see Describe the installation diagram of the displacement sensor, i.e. figure 1 One of the angle steels and the second angle steel 7 are targets, and the other angle steel is the first angle steel 5, and a displacement sensor is installed in a hole, and the end 8 of the displacement sensor is in contact with the vertical surface of the symmetrical angle steel, that is, the second angle steel 7, and the state is set at this time...
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