A control method for reducing the failure rate of hot strip layer cooling equipment

Abstract

This invention relates to a control method for reducing the failure rate of hot-rolled strip cooling equipment. The steps are as follows: the system tracks the position and speed of the strip and transmits the data to the PLC; after the tail of the strip passes through the corresponding cooling manifold roller conveyor, the solenoid valve of the cooling manifold closes, completing the setting and control of the coiling temperature of the current strip; after the tail of the strip passes through each set of cooling manifold roller conveyors, a virtual strip is generated in that area; the virtual strip is sprayed after the tail of the previous coil passes; after the virtual strip is sprayed, the setting and control of the actual rolled steel coil for the next coil are entered; according to the different coiling temperatures or rolling rhythms of the rolled steel grades, the interval between sprayed strip coils and the spraying time are optimized. This method requires no manual intervention in production, the system operates stably and reliably, solves the problem of high solenoid valve failure rate caused by high-temperature baking, effectively improves the quality of hot-rolled products and reduces the equipment failure rate.