Deviation correcting device and deviation correcting method for stainless steel bright annealing furnace

Abstract

The invention discloses a deviation correcting device for a stainless steel bright annealing furnace. The deviation correcting device comprises a deviation correcting roller; the deviation correcting roller passes through a top roller box and is connected with the top roller box through a nonmetallic compensator; the deviation correcting roller is fixed on an upper framework through a bearing block base; the upper framework is connected with a lower framework through a connecting crank; a crank adjusting shim plate is arranged between the connecting crank and the lower framework; crank adjusting bolts are arranged at two sides of the crank adjusting shim plate; the deviation correcting device is also provided with a deviation correcting hydraulic cylinder; one end of the deviation correcting hydraulic cylinder is fixed with the lower framework through a middle trunnion, and the other end of the deviation correcting hydraulic cylinder is connected with the upper framework through a spherical hinge; and the top roller box is fixed on the lower framework through bolts. The invention also discloses a deviation correcting method. The deviation correcting device has the advantages of compact structure, simple and reasonable equipment layout, large deviation correcting range, short response time and good deviation correcting effect retaining property, and can greatly improve the deviation correcting effect of strip steels in the stainless steel bright annealing furnace and obviously improve the quality and the production efficiency of the strip steels.

Description

technical field [0001] The invention relates to a strip steel deviation correction device, in particular to a deviation correction device in a stainless steel bright annealing furnace. The invention also provides a deviation correction method using the deviation correction device. Background technique [0002] The stainless steel bright annealing furnace is a vertical annealing furnace. The whole furnace is divided into an ascending section and a descending section. The steel strip runs along the vertical direction. The ascending section is composed of a heating section, a slow cooling section and a fast cooling section. The deviation-correcting roller and steering roller in the top roller box change the conveying direction of the steel strip, and the steel strip is sent out of the furnace through the downward passage in the down section, which has the advantage of saving the plane space of the workshop. The whole annealing furnace is full of hydrogen atmosphere. The heating...

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Problems solved by technology

The whole annealing furnace is full of hydrogen atmosphere. The heating section, slow cooling section, cooling section and top roller box are arranged along the vertical direction of the factory building, so the overall height of the furnace is very high. The uplink section and downlink section are more than 100 meters long. , and the strip steel is in a hanging free state in the uplink section and the downlink section, the strip steel is very easy to deviate, and it is easy to produce edge scraping, damage the furnace equipment, cause high-temperature strip steel to produce edge waves and buckling phenomena, and seriously affect the quality of the strip steel

The traditional method is to ensure the airtightness of the furnace. Only conventional rectifying rollers outside the furnace can be installed outside the furnace inlet and outlet to rectify the deviation of the strip steel. Since the strip steel in the furnace is vertically arranged and the length of the free section is very long, the deviation rectification effect is very good. not good

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