Double-pipe material distributing device for automatic covering slag adding system of continuous casting machine

Abstract

The invention discloses a double-pipe material distributing device for an automatic covering slag adding system of a continuous casting machine. The device comprises a discharging dual pipes, materialdistributing plugs, a supporting mechanism, a fixed base and a sliding base, the whole discharging dual pipes are in a Y shape, the tail portions of the dual pipes are gathered, each pipe is connected with a covering slag conveying device, the front ends of the two pipes are branched, each pipe is connected with the corresponding material distributing plug, the middle portions of the two pipes are fixed to the sliding base through the supporting mechanism, the discharging dual pipes and the material distributing plugs have downward slopes, the fixed base is arranged at one side of a crystallizer, and the sliding base is detachably and fixedly installed on the fixed base. The double-pipe material distributing device has the advantages that automatic uniform slag adding is achieved, independent control over the slag adding amount on the two sides of a water gap is achieved through the double-pipe structure, and the situation that the thicknesses of slag layers at the two sides of the water gap are not uniform is easily avoided.

Description

technical field [0001] The invention relates to a material distributing device, in particular to a double-pipe material distributing device used in an automatic mold slag adding system of a continuous casting machine, and belongs to the technical field of continuous casting. Background technique [0002] Continuous casting is one of the core processes of steelmaking. The molten steel flows through the ladle, tundish, submerged nozzle, and crystallizer in sequence, and then flows into the continuous casting machine for stretching and straightening. At present, in order to improve the quality of the finished billet, it is usually necessary to evenly lay mold slag on the surface of the molten steel in the mold to achieve the following purposes: 1. Heat insulation and heat preservation to prevent heat dissipation; 2. Separate the air to prevent oxygen in the air from entering the molten steel Secondary oxidation affects the quality of steel; 3. Absorb and dissolve inclusions flo...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the work of adding mold slag is done manually, and the amount of mold slag added is completely controlled by manual experience judgment. Due to the strict requirements on the process of adding mold slag, it is difficult for the pouring workers in continuous casting. The steel work brings enormous pressure, frequently adding mold slag to each crystallizer, which greatly increases the labor intensity of workers

Moreover, the way of artificially adding mold slag is affected by factors such as workers' sense of responsibility, and the quality of slag addition is also difficult to guarantee, which will eventually directly affect the quality of continuous casting slabs and even steel products

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