Anti-abrasion stopper rod water gap quick changing device

Abstract

The invention provides an anti-abrasion stopper rod water gap quick changing device. The anti-abrasion stopper rod water gap quick changing device comprises a lengthened water gap, wherein a water gap positioning hole is formed in the lower part of the lengthened water gap; the lower part of the lengthened water gap is matched with an installing plate; the lower part of an upper water gap is arranged in an upper guiding plate; the bottom surface of the upper guiding plate is provided with a lower guiding plate; a gas spring is arranged on the lower guiding plate; the bottom part of a lower water gap is arranged in an upper end opening of a submersed water gap; the shape of the upper part of the submersed water gap is a cone; the shape of the lower part of the submersed water gap is a cylinder; the bottom surface of the lengthened water gap is in contact with the upper surface of the upper guiding plate; an upper end opening of a first through hole in the lengthened water gap is matched with a zirconium head arranged at the bottom end of a stopper rod body; a cylindrical through hole is formed in the center part of the submersed water gap; a conical through hole is formed in the center part of the cone; an annual groove is formed in the inner wall of a through hole in the upper end part of the submersed water gap; a cylindrical zirconium cylinder is arranged in the annual groove; the upper end of the cylindrical zirconium cylinder is in contact with the small-diameter end of a conical zirconium cylinder. According to the anti-abrasion stopper rod water gap quick changing device provided by the invention, the positioning accuracy is high while a water gap is changed, and convenience and quickness are realized.

Description

technical field [0001] The invention relates to an accessory of steelmaking equipment, and is a wear-resistant quick-change device for a nozzle of a stopper. Background technique [0002] In the continuous casting production of steelmaking in steel enterprises, quick-change devices for nozzles are needed, but the existing quick-change devices all use the structure of the upper nozzle and the block. The disadvantage of the quick-change device with this structure is: because the block Used in conjunction with the upper nozzle, the seat brick and the upper nozzle are replaced at the same time, so when the seat brick is corroded, the upper nozzle must be replaced in time, otherwise the molten steel may be polluted at any time, especially for high-quality steel and variety steel products that require high cleanliness Production environment, so as to avoid the phenomenon of unqualified product quality. And the service life of seat brick is shorter, when seat brick is corroded, un...

AI Technical Summary

Problems solved by technology

[0002] In the continuous casting production of steelmaking in steel enterprises, quick-change devices for nozzles are needed, and the existing quick-change devices all use the structure of the upper nozzle and the block. The disadvantage of the quick-change device with this structure is: because the block Used in conjunction with the upper nozzle, the seat brick and the upper nozzle are replaced at the same time, so when the seat brick is corroded, the upper nozzle must be replaced in time, otherwise the molten steel may be polluted at any time, especially for high-quality steel and variety steel products that require high cleanliness Production environment, so as to avoid the phenomenon of unqualified product quality

However, the service life of the seat brick is short. When the seat brick is corroded and the water inlet has not yet been corroded, the water inlet is still replaced at the same time, resulting in a large waste of the water inlet.

In addition, due to the low quality of the positioning surface of the seat brick, the positioning accuracy with the upper nozzle is low, and the production safety is low.

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