A method and device for preventing strip steel from running off in a vertical annealing furnace
A technology of vertical annealing furnace and strip steel, which can be used in furnaces, furnace types, heat treatment furnaces, etc.
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Embodiment 1
[0043] This embodiment provides a method for preventing strip steel from running off in the vertical annealing furnace, such as figure 1 As shown, the method includes:
[0044] S110. Obtain deviation data of the steel strip in the vertical annealing furnace, and determine a first deviation factor for serpentine deviation and a second deviation factor for instantaneous deviation according to the deviation data;
[0045] In this step, the deviation of the strip at the exit of the heating section in the vertical annealing furnace can be divided into serpentine deviation and instantaneous deviation. In order to quantitatively analyze the deviation, obtain the deviation of the strip in the vertical annealing furnace. Deviation data, determining a first deviation factor for serpentine deviation and a second deviation factor for instantaneous deviation according to the deviation data.
[0046] Here, the first deviation factor includes: the outlet temperature of the heating section i...
Embodiment 2
[0080] Corresponding to Embodiment 1, this embodiment also provides a device for preventing strip steel from running off in the vertical annealing furnace, such as figure 2 As shown, the device includes: an acquisition unit 21, a first determination unit 22, a second determination unit 23, a third determination unit 24, a judgment unit 25, a first adjustment unit 26 and a second adjustment unit 27; wherein,
[0081] The deviation of the steel strip at the outlet of the heating section in the vertical annealing furnace can be divided into serpentine deviation and instantaneous deviation. In order to quantitatively analyze the deviation, the acquisition unit 21 is used to obtain the Deviation data, determining a first deviation factor for serpentine deviation and a second deviation factor for instantaneous deviation according to the deviation data. Here, the first deviation factor includes: the outlet temperature of the heating section in the vertical annealing furnace and the ...
Embodiment 3
[0106] In actual application, when the method provided in Embodiment 1 and the device provided in Embodiment 2 are used in a certain unit, it is determined that the unit is running off in a serpentine shape, so the temperature in the outlet area of the vertical furnace roller heating section is changed from 920°C ( normal mode) to 900°C (proportional mode), successfully avoiding the "serpentine" deviation of the strip at the exit of the heating section, such as image 3 As shown, the heating mode of the heating section before optimization is the normal mode, and the correction cylinder operates periodically, indicating that the strip steel presents a "serpentine deviation" at the exit (pointed by the left arrow), and the heating mode of the heating section after optimization is the proportional mode , the correction cylinder has no periodic action, showing a straight line (pointed by the arrow on the right), indicating that the strip steel does not have "serpentine deviation"...
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