Multi-alloy step feed device for metallurgy smelting

Abstract

The invention discloses a multi-alloy step feed device for metallurgy smelting. More than two alloy feeders are arranged on a ladle cover of a ladle; each of the alloy feeders comprises a bracket; a sliding frame is mounted in the bracket; a dual-output shaft belt motor reducer and counterweight iron are arranged on the sliding frame; a lifting wheel is mounted on one output shaft of the dual-output shaft belt motor reducer, and an electromagnetic clutch device is mounted on the other output shaft of the dual-output shaft belt motor reducer; a steel wire rope is sleeved onto a guide wheel assembly at the top of the bracket, and one end of the steel wire rope is connected with the sliding frame while the other end of the steel wire rope is connected with the lifting wheel; and an alloy frame is connected with a shaft sleeve fixed onto the electromagnetic clutch device through a connecting rod and a bolt. According to the multi-alloy step feed device for metallurgy smelting, the alloys are directly pressed into molten steel through a pressing-in device, are directly molten in the molten steel and cannot contact air so as to avoid oxidization and burning loss; the feeding amount of the alloys can be reduced while the absorption rate is greatly increased, so that the production cost is favorably reduced and the absorption and component uniformity of the alloys in the molten steel are improved at the same time; and the feeding process is simplified and the labor intensity is reduced.

Description

technical field [0001] The invention relates to a multi-alloy step-by-step adding device for metallurgical smelting. Background technique [0002] Nowadays, alloys such as calcium, barium, manganese, and magnesium are usually used as purifying agents to deoxidize and desulfurize steel to improve its performance. The method of adding purified alloys is generally the wire feeding method and the flushing method. The wire feeding method is to first crush the deoxidized, desulfurized or purified alloy into powder, and then roll it into a round wire on the cored wire unit with a steel belt. The production process is complicated and the cost is high. Special wire feeding equipment requires a large investment in equipment and high maintenance costs; while using the flushing method, the addition of a large amount of purification is difficult to control, and the effective element absorption rate of the alloy is low. [0003] When multiple alloys need to be added in a certain order, t...

AI Technical Summary

Problems solved by technology

The wire feeding method is to first crush the deoxidized, desulfurized or purified alloy into powder, and then roll it into a round wire on the cored wire unit with a steel belt. The production process is complicated and the cost is high. Special wire feeding equipment requires a large investment in equipment and high maintenance costs; while using the flushing method, the addition of a large amount of purification is difficult to control, and the absorption rate of effective elements in the alloy is low

[0003] When multiple alloys need to be added in a certain order, the common method is to add an alloy at the bottom of the steel (iron) ladle first, then add a part with the flow when the molten iron is tapped, and then add the remaining alloy after the molten iron is tapped. The method is not easy to control, especially the alloy added with the flow and the alloy added after the molten iron is discharged are easy to float on the surface of the molten iron and oxidize in contact with the air. The effective element absorption rate of the alloy is low, which affects the effect.

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