System and method for stream inoculation at ladle nozzle

Abstract

The invention discloses a system and a method for stream inoculation at a ladle nozzle. The system comprises a casting ladle, a fixed base, a base limiting part, a support fixed shaft, a feeding limiting part, a limiting buckle, an inoculation limiting part, a support rotating shaft, a guide groove, a flow valve, a blocking ball, an inoculation hopper for bearing an inoculant, an inoculation support long shaft and a pull rope, wherein the blocking ball is arranged at a discharging opening in the inoculation hopper and connected to a safety station through the pull rope to remotely control discharging of the inoculant or not. By the adoption of the method of the system, operation is easy and practical, the uniformity, stability and consistency of inoculation can be guaranteed, and the method is suitable for first-time inoculation with the large inoculation amount and can also be suitable for second-time inoculation with the small inoculation amount. The system and method are particularly suitable for inoculation operation of large castings, and if the system and method are matched with a quantitative pouring gate pool, the effect is better.

Description

technical field [0001] The invention belongs to the technical field of metal smelting, and in particular relates to a system and method for inoculating with flow at a spout. Background technique [0002] In the field of metal smelting, inoculation treatment is an important process. Adding inoculant to molten iron can change the metallurgical state of molten iron and improve the microstructure and properties of cast iron. In the inoculation method of the furnace flushing method and the inoculation method of the input method, all inoculants are only divided into one or more times and added to the molten iron. The mixing with the molten iron is uneven, the inoculation effect is unstable, and the consistency is poor; [0003] Affected by the pouring temperature, the inoculation temperature is often not the highest melting temperature. In order to achieve the required inoculation temperature, it is necessary to wait for the molten iron to cool down, which reduces the melting eff...

AI Technical Summary

Problems solved by technology

In the inoculation method of the furnace flushing method and the inoculation method of the input method, all inoculants are only divided into one or more times and added to the molten iron. The mixing with the molten iron is uneven, the inoculation effect is unstable, and the consistency is poor;

[0003] Affected by the pouring temperature, the inoculation temperature is often not the highest melting temperature. In order to achieve the required inoculation temperature, it is necessary to wait for the molten iron to cool down, which reduces the melting efficiency; breeding recession

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