sliding gate plate operation principle

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  The sliding gate plates are installed  at the bottom of  ladle, they are two perforated refractory bricks work with upper nozzle and collect nozzle to control the steel flow . The upper nozzle  and upper slide gate are fixed in the mechanism, the collect nozzle and slide plate can be moved  left and right. 

When the inner holes coincide, nozzle openning  is the largest, when the nozzles are not coincident, the nozzle is closed. Sliding nozzles can improve working conditions, speed up ladle turnover, save refractory materials, reduce leakage accidents, improve slab quality and facilitate molten steel refining .