Device and method for preventing alkali wash section of continuous annealing line from off-tracking

Abstract

The invention relates to device and method for preventing an alkali wash section of a continuous annealing line from off-tracking. The device comprises a variable frequency motor, a shaft coupler, a gear case and wring rollers, wherein the wring rollers comprise an upper wring roller and a lower wring roller; the gear case is arranged between the wring rollers and the shaft coupler; one end of the shaft coupler is connected with the output end of the variable frequency motor; the other end of the shaft coupler is connected with the input end of the gear case; the output end of the gear case is connected with the upper wring roller through a joint type shaft coupler I; the output end of the gear case is connected with the lower wring roller through a joint type shaft coupler II; and the variable frequency motor drives the shaft coupler to rotate. The off-tracking prevention method comprises the following steps that: a steel strip passes through the wring roller of the alkali section, and passes through between the upper wring roller and the lower wring roller which are used as driving rollers. The device and the method provided by the invention has the advantages that the steel strip is prevented from off tracking on the alkali section, so that waste products and wastes of various energies can be reduced; and meanwhile, the strip breakage accident is prevented from occurring, so that the production can be smoothly carried out. The production efficiency is improved, and the spare consumption is reduced.

Description

technical field [0001] The invention relates to a device and a method for preventing the deviation of the alkaline washing section of the continuous annealing line. Background technique [0002] Since the cold-rolled silicon steel plant was put into production, there has been a problem of strip deviation in the alkali cleaning section. Once the deviation occurs, waste products will be generated, or even the strip will be broken, and production will not be possible. like image 3 As shown, the total length of the alkaline cleaning section is 50M, during which more than 30 rollers pass through, and the strip steel will not be a straight line when it is unfolded for 50M, and there will be more or less deformation. The 5# correction roller ensures that the strip steel entering the alkaline cleaning section is aligned The state enters the alkali cleaning section. After the strip passes through the alkali spraying and brushing rollers in the alkali cleaning section, it leaves the ...

AI Technical Summary

Problems solved by technology

[0002] Since the cold-rolled silicon steel plant was put into production, the steel strip has always had the problem of deviation in the alkali washing section. Once the deviation occurs, waste products will be generated, or even the strip will be broken, and production will not be possible.

like image 3 As shown, the total length of the alkaline cleaning section is 50M, during which more than 30 rollers pass through, and the strip steel will not be a straight line when it is expanded for 50M, and there will be more or less deformation. The 5# correcting roller ensures that the strip steel entering the alkaline cleaning section is aligned The state enters the alkali cleaning section. After the strip passes through the alkali spraying and brushing rollers in the alkali cleaning section, it leaves the alkaline washing section at the clean water squeezing roller. Due to the plate shape and equipment reasons, it will The deviation of the centering of the dry roll is within 20mm, and the deviation is corrected by the 6# correcting roll. However, if the deviation of the strip in the alkali cleaning section is too large, exceeding 30mm, it will be scraped off at the clean water squeezing dry roll , leading to an accident

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