Method and device for preventing strip steel from deflecting

Abstract

The invention provides a method and a device for preventing strip steel from deflecting. The method comprises the steps of receiving convexity values of a turning roll and a sink roll in a roll system at a cleaning section; decreasing the cylinder deflection rectification amount of the roll system according to the convexity values; and receiving a preset tension value, and guaranteeing a wrap angle of the strip steel and the roll system at the cleaning section to be in a stable state according to the tension value, wherein the turning roll and the sink roll are double-helix rolls. According to the method, through optimizing convexity and surface structures of the sink roll and the turning roll, introducing tension velocity factor, and establishing a virtuous alkali liquor circle system at the cleaning section, the technical problem that the high-speed running strip steel deflects at the cleaning section is solved.

Description

technical field

[0001] The invention belongs to the technical field of iron and steel smelting, and in particular relates to a method and a device for preventing deviation of strip steel. Background technique

[0002] In the iron and steel smelting process, the continuous annealing furnace is an important link in the production of cold-rolled strip steel, including: pre-degreasing (alkali spray + alkali scrubbing), electrolytic degreasing, brushing and spray rinsing, specifically through a certain concentration of The lye uses physical, chemical and electrolytic methods to remove oil and impurities on the surface of the strip, and then rinses with water to remove the residual lye to prepare for the process section.

[0003] However, with the continuous development of the market, the demand for products is increasing, and the operating speed of the continuous annealing furnace unit is continuously increasing. However, as the operating speed of the unit increases, the friction...

Examples

Embodiment 1

[0029] This embodiment provides a method for preventing strip deviation, such as figure 1 As shown, the method includes the following steps:

[0030] Step 110, receiving the convexity value of the steering roller and the sinking roller in the roller system of the cleaning section, and reducing the deviation correction amount of the cylinder of the roller system according to the convexity value.

[0031] In this step, in order to improve the self-correction ability of the roller system in the cleaning section, the deviation correction amount of the strip running at high speed in the cleaning section is reduced. According to the principle of roller effect, the convexity value of the steering roller and the sinking roller in the roller system in the cleaning section is received, and the deviation correction amount of the cylinder of the roller system is reduced according to the convexity value.

[0032] Specifically, as shown in Table 1, the roller system in the cleaning section...

Embodiment 2

[0058] Corresponding to Embodiment 1, this embodiment also provides a device for preventing strip deviation, such as figure 2 As shown, the device includes: a receiving module 21 and a determining module 22; wherein,

[0059] The receiving module 21 is used to receive the convexity value and the preset tension value of the steering roller and the sinking roller in the roller system of the cleaning section; the determination module 22 is used to reduce the cylinder deviation correction of the roller system according to the convexity value According to the tension value, ensure that the wrap angle between the strip steel and the roll system in the cleaning section is in a stable state.

[0060] Specifically, in order to improve the self-correction ability of the roller system in the cleaning section, the deviation correction amount of the strip running at high speed in the cleaning section is reduced. According to the principle of roller effect, the receiving module 21 receive...

technical field

[0001] The invention belongs to the technical field of iron and steel smelting, and in particular relates to a method and a device for preventing deviation of strip steel. Background technique

[0002] In the iron and steel smelting process, the continuous annealing furnace is an important link in the production of cold-rolled strip steel, including: pre-degreasing (alkali spray + alkali scrubbing), electrolytic degreasing, brushing and spray rinsing, specifically through a certain concentration of The lye uses physical, chemical and electrolytic methods to remove oil and impurities on the surface of the strip, and then rinses with water to remove the residual lye to prepare for the process section.

[0003] However, with the continuous development of the market, the demand for products is increasing, and the operating speed of the continuous annealing furnace unit is continuously increasing. However, as the operating speed of the unit increases, the friction...

Examples

Embodiment 1

[0029] This embodiment provides a method for preventing strip deviation, such as figure 1 As shown, the method includes the following steps:

[0030] Step 110, receiving the convexity value of the steering roller and the sinking roller in the roller system of the cleaning section, and reducing the deviation correction amount of the cylinder of the roller system according to the convexity value.

[0031] In this step, in order to improve the self-correction ability of the roller system in the cleaning section, the deviation correction amount of the strip running at high speed in the cleaning section is reduced. According to the principle of roller effect, the convexity value of the steering roller and the sinking roller in the roller system in the cleaning section is received, and the deviation correction amount of the cylinder of the roller system is reduced according to the convexity value.

[0032] Specifically, as shown in Table 1, the roller system in the cleaning section...

Embodiment 2

[0058] Corresponding to Embodiment 1, this embodiment also provides a device for preventing strip deviation, such as figure 2 As shown, the device includes: a receiving module 21 and a determining module 22; wherein,

[0059] The receiving module 21 is used to receive the convexity value and the preset tension value of the steering roller and the sinking roller in the roller system of the cleaning section; the determination module 22 is used to reduce the cylinder deviation correction of the roller system according to the convexity value According to the tension value, ensure that the wrap angle between the strip steel and the roll system in the cleaning section is in a stable state.

[0060] Specifically, in order to improve the self-correction ability of the roller system in the cleaning section, the deviation correction amount of the strip running at high speed in the cleaning section is reduced. According to the principle of roller effect, the receiving module 21 receive...

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