Double-sawtooth-shaped anti-caking device for continuous casting tundish outlet

Abstract

The invention provides a double-sawtooth-shaped anti-caking device for a continuous casting tundish outlet. The device is characterized in that double-sawtooth-shaped pieces are fixed on a round base,the double-sawtooth-shaped pieces and the round base are concentric. The round base is provided with a central through hole, and the double saw-tooth pieces are provided with outer sawteeth and innersawteeth which are arranged at equal intervals. The inner sawteeth and the outer sawteeth are rectangular teeth, and the radius of the circle formed by the center points of the inner sawteeth is thesame as the radius of the center through hole; and the radius of the circle formed by the center points of the sawteeth is the same as the radius of the round base. The middle ring width d of the inner sawteeth and the outer sawteeth is 0.5-1.0 time of the radius r of the tundish water outlet, the tooth width of the outer sawteeth and inner sawteeth is (0.7-0.9) d, and the distance between the inner sawteeth tooth ends and the outer sawteeth tooth ends is (0.4313-0.5785) m and (1.1256-1.2695) m. According to the double-sawtooth-shaped anti-caking device, impurities in steel liquid is adsorbedon the double sawteeth when the steel liquid passes the device, the impurities in the molten steel block a water opening when the tundish is opened, and the steel liquid is purified. The device is simple in structure, low in cost and convenient to maintain and replace.

Description

technical field [0001] The invention belongs to a device for catching inclusions of molten steel, in particular to a double-serrated anti-nodulation induction device used at the outlet of a continuous casting tundish. Background technique [0002] With the development of continuous casting technology, the continuous casting tundish not only plays the role of storing and distributing molten steel, but also has the function of removing inclusions in molten steel and improving the cleanliness of molten steel. The continuous casting tundish is the last reactor in the steel smelting process, and its ability to remove inclusions is particularly important. [0003] The continuous casting nozzle nodulation problem has been one of the important problems faced by various iron and steel enterprises for a long time. Many scientific researchers have done a lot of work on this. The problem of nozzle nodules during ladle casting still occurs frequently. In order to improve the ability of...

AI Technical Summary

Problems solved by technology

However, there are still a certain amount of inclusions that cannot be removed by floating up, and finally enter the crystallizer with the molten steel from the submerged nozzle of the continuous casting tundish and stay in the billet, which not only has a great impact on the subsequent processing of the billet, but also enters the continuous casting process. The inclusions in the submerged nozzle of the tundish will also gather in it, causing nodules at the nozzle, affecting casting, or even completely blocking it, resulting in continuous casting.

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