Induction furnace tapping channel prefabricated part

Abstract

The utility model relates to an induction furnace tapping groove prefabricated part, which is applied to the field of metallurgical industry, has the advantages of no divergent flow in tapping, small temperature drop, long service life and low production cost, and comprises an induction furnace tapping groove prefabricated part body and a tapping groove prefabricated part hanging ring arranged on the induction furnace tapping groove prefabricated part body, the induction furnace tapping groove prefabricated part body comprises a corundum material which is used as a support of the prefabricated part and plays a role of aggregate, and a silicon carbide castable which is filled in the corundum material, and the tapping groove which is formed in the induction furnace tapping groove prefabricated part body is of a U-shaped structure which is wide inside and narrow outside and is beneficial to non-diffusion of tapping. According to the induction furnace tapping groove prefabricated part, the tapping groove prefabricated part lifting ring facilitating balanced lifting is embedded in the gravity center position of the induction furnace tapping groove prefabricated part body, by adopting the design of the induction furnace tapping groove prefabricated part, the erosion and scouring resistance of the tapping groove is improved, steel slag is not prone to adhering, cleaning is easy, a commonly-used tapping groove knotted by refractory materials is replaced, the service life is prolonged, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to an induction furnace steel tapping trough prefabricated part which is applied in the field of metallurgy industry and has the advantages of no steel dispersal, small temperature drop, long service life and low production cost. Background Art

[0002] In the early days of domestic large and medium-sized smelting furnaces, most of them tapped steel in the form of troughs. The promotion of eccentric bottom tapping was only widely used in large and medium-sized furnaces, while all induction furnaces tapped steel in the form of troughs. The refractory materials of the troughs were knotted and formed by knotting materials. During the tapping process, the troughs were easy to stick to slag and easy to disperse. The tapping time was long and the temperature drop was large. After tapping, the troughs needed to be cleaned of slag sticking to them. In addition, the refractory materials of the troughs were easily damaged in the process of cleaning the slag, which reduced their service life. Generally, the service life was 30-50 furnace times, and the production cost was high. In the later period of the use of the troughs, workers had to clean the slag in the troughs in almost every furnace. The labor intensity was high and the efficiency was low. At the same time, the dispersion of tapping also affected the quality of the molten steel. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings in the current operation by taking advantage of the corrosion resistance, density, non-stickiness of steel slag and easy cleaning of the refractory material of the steel tapping trough prefabricated part to replace the commonly used refractory knotted induction furnace steel tapping trough prefabricated part. The use of the prefabricated refractory material steel tapping trough does not cause steel to disperse and has a small temperature drop, thereby increasing service life and reducing production costs.

[0004] The purpose of the utility model is achieved as follows: an induction furnace steel trough prefabricated part, comprising an induction furnace steel trough prefabricated part body and a steel trough prefabricated part lifting ring arranged on the induction furnace steel trough prefabricated part body, the induction furnace steel trough prefabricated part body comprising a corundum material which serves as a support for the prefabricated part and plays the role of aggregate, and a silicon carbide castable filled in the corundum material; the steel trough arranged on the induction furnace steel trough prefabricated part body is in a U-shaped structure which is wide inside and narrow outside and is conducive to the steel tapping without dispersing; a steel trough prefabricated part lifting ring is buried at the center of gravity of the induction furnace steel trough prefabricated part body for convenient balanced lifting.

[0005] The beneficial effects of the present invention are as follows: (1) the erosion resistance of the refractory material of the steel tapping trough prefabricated part; (2) the density of the refractory material of the steel tapping trough prefabricated part; (3) the refractory material of the steel tapping trough prefabricated part is not easily adhered to steel slag and is easy to clean, which facilitates steel tapping and maintenance operations, greatly reduces the labor intensity of induction furnace steel workers, and increases the service life, with an average service life of more than 200 heats. The present invention includes the material and shape of the steel tapping trough prefabricated part. The application is carried out by installing and fixing the refractory material of the prefabricated part in advance. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a cross-sectional view of the induction furnace steel trough prefabricated part of the present invention.

[0007] Figure 2 This is a side view of the induction furnace steel trough prefabricated part of the present invention.

[0008] The following are marked in the figure: 1. Induction furnace steel trough prefabricated part body; 2. Lifting ring. DETAILED DESCRIPTION

[0009] like Figure 1 、 2 As shown, an induction furnace steel trough preform comprises an induction furnace steel trough preform body 1 and a steel trough preform lifting ring 2 arranged on the induction furnace steel trough preform body 1. The induction furnace steel trough preform body 1 comprises a corundum material which serves as a support for the preform and acts as an aggregate, and a silicon carbide castable filled in the corundum material. The steel trough arranged on the induction furnace steel trough preform body 1 is in a U-shaped structure which is wide inside and narrow outside and is conducive to preventing steel from dispersing. A steel trough preform lifting ring 2 is buried at the center of gravity of the induction furnace steel trough preform body 1 for convenient balanced lifting.

[0010] The induction furnace steel spout prefabricated body 1 is cast in a mold using a proportional mixture of corundum castable and silicon carbide. The corundum castable has an alumina content of at least 99% and a bulk density of 4.0g / cm³ or higher, serving as aggregate. Silicon carbide, with a bulk density of 3.2g / cm³ or higher, primarily provides earthquake resistance, spalling resistance, and erosion resistance. The lifting ring 2 is made of Q235 steel bars with a diameter of at least 8mm and is pre-embedded in the induction furnace prefabricated body 1 according to the layout during fabrication.

Claims

1. An induction furnace steel trough prefabricated part, comprising an induction furnace steel trough prefabricated part body (1), and a steel trough prefabricated part hanging ring (2) arranged on the induction furnace steel trough prefabricated part body (1), characterized in that: The induction furnace steel trough prefabricated component body (1) comprises a corundum material serving as a support for the prefabricated component and acting as an aggregate, and a silicon carbide castable material filled in the corundum material. The steel trough provided on the induction furnace steel trough prefabricated component body (1) is in the shape of a U-shaped structure with a wide inside and a narrow outside, which is conducive to preventing steel from dispersing. A steel trough prefabricated component lifting ring (2) is embedded at the center of gravity of the induction furnace steel trough prefabricated component body (1) for facilitating balanced lifting.

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