A kind of kr desulfurization molten iron level height measuring system and its application method

Abstract

The invention discloses a KR desulfurization molten iron liquid surface height measurement system and a use method thereof. The KR desulfurization molten iron liquid surface height measurement system has the technical scheme that an industrial camera (1) is fixedly installed above on side in the tipping direction of the molten iron jar (3); the lens of the industrial camera (1) just faces to the liquid surface of molten iron (4) on one side of the returning direction after the molten iron jar (3) is returned; the industrial camera (1) is positioned on the centroid rotation plane of the molten iron jar (3); a molten iron motor tractor (5) on one side of the returning direction of the molten iron jar (3) is provided with a returning limit switch (6); the returning limit switch (6) is positioned on the contact position after the molten iron jar (3) finishes returning; the lens of the industrial camera (1) is provided with an optical filter (2); the returning limit switch (6) is connected with the A / D-1 port of a data acquisition card (7); the industrial camera (1) is connected with a computer (9); the computer (9) is provided with the data acquisition card (7) and liquid surface height measurement software (8).

Description

technical field [0001] The invention relates to the technical field of measuring the liquid level of molten iron, in particular to a system for measuring the liquid level of KR desulfurized molten iron and a method for using the same. Background technique [0002] In the KR desulfurization operation, the height of the molten iron level is a very important parameter, which is used to determine the insertion depth of the agitator, and whether the insertion depth of the agitator is reasonable will seriously affect the desulfurization effect, so the accurate measurement of the liquid level of the KR desulfurization molten iron Very necessary. At present, there are several ways to determine the liquid level of KR desulfurized molten iron: [0003] 1. Calculate the height of the liquid level according to the weight of the molten iron and the shape of the molten iron tank. The specific calculation method is: first weigh the weight of the empty molten iron tank, then fill in the mo...

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Problems solved by technology

[0003] 1. Calculate the height of the liquid level according to the weight of the molten iron and the shape of the molten iron tank. The specific calculation method is: first weigh the weight of the empty molten iron tank, then fill in the molten iron and weigh it again, subtract the two weighings to obtain the weight of the molten iron, and then calculate the weight of the molten iron according to the weight of the molten iron The liquid level height of molten iron is calculated from the density and the shape of the inner space of the molten iron tank; the internal shape of the molten iron tank and the quality of the molten iron tank will change due to the sticky slag on the wall of the molten iron tank and the corrosion of the bottom of the tank, and the difference in the composition and temperature of the molten iron will cause The density of molten iron fluctuates, which will lead to inaccurate calculation of the height of the molten iron level

[0004] 2. Estimate the height of the liquid level based on the molten iron adhered to the agitator. The specific method is: first lower a part of the agitator to immerse in the molten iron, lift it up after a few seconds, and then estimate the molten iron by manually observing the molten iron adhered to the agitator. surface height; this method requires a series of actions to lower the agitator first, then stop, and then lift, resulting in a long time-consuming, and because the liquid level height is manually estimated, the accuracy is difficult to guarantee

[0005] 3. Use radar to measure the height of the molten iron level. The specific method is: when measuring the molten iron level, install the measuring device directly above the molten iron level. As a high-temperature liquid, the temperature directly above the molten iron is very high, which will cause the measuring device to be easily damaged. It is not conducive to the long-term and stable measurement of the liquid level of molten iron

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