Adding device capable of easily oxidizing precious alloys

Abstract

The invention discloses an adding device capable of easily oxidizing precious alloys. The adding device comprises a pressing block mechanism and a stock bin mechanism. The pressing block mechanism comprises a pressing block, lifting lugs arranged at the upper end of the pressing block, a detachable connecting part arranged on one side of the pressing block. The stock bin mechanism comprises a multi-layer stock bin and a suspender. The stock bin comprises multiple annular flat steel frames composed of concentric rings, and multiple flat steel connecting beams for radially connecting the concentric rings and axially connecting the adjacent annular flat steel frames, the lower end of the suspender stretches into the center of the stock bin and is connected with the annular flat steel frame atthe bottom-most position, the flat steel connecting beams are connected with the suspender, and the upper end of the suspender is connected with the pressing block through the detachable connecting part. According to the adding device, an original precious alloy adding manner can be changed, cast adding is changed into adding by going deep into the bottom of a steel ladle, the yield of precious alloy elements is increased, and the production cost is reduced.

Description

technical field [0001] The invention relates to a device for adding alloy materials, more specifically to a device for adding easily oxidizable precious alloys. Background technique [0002] In steelmaking and various molten steel refining processes, in order to adjust the temperature and composition of molten steel, it is often necessary to add various auxiliary raw materials, ferroalloys and alloy wires. During the metallurgical chemical reaction process, some of the metal elements in these furnace materials will enter the steel. When changing the composition of the steel, the remaining part will enter the slag and lose, and the percentage of the alloy elements entering the steel is called "yield". [0003] Steelmaking produces high-alloy steel grades. In order to obtain ideal steel grade performance, various precious alloys are often added during the production process, such as nickel, chromium, and easily oxidized rare earth elements. The traditional method is generally...

AI Technical Summary

Problems solved by technology

The traditional method is generally, some alloys are added by feeding wires, such as aluminum wires, sulfur wires, titanium wires, etc., but because nickel, chromium, rare earth elements, etc. cannot be made into alloy wires, only alloy materials in silos or barrels can be selected. The method of throwing in, especially the precious alloys that are easy to oxidize, is currently mostly packed in barrels and then thrown in. The yield of precious alloys is low and unstable. For example, a company produces heat-resistant stainless steel containing rare earths and adds rare earth element Ce, and adopts the throwing method. , the highest yield is only 11%, and it is extremely unstable

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