Converter

Abstract

The utility model discloses a converter. Comprising a tapping hole; the tapping hole sequentially comprises a tapping hole seat brick, a tapping hole sleeve brick, a filling layer and a steel pipe from outside to inside; wherein the tapping hole sleeve brick is of an integral structure; the hollow part of the tapping hole sleeve brick is a reducing hollow part; the radius of the lower half part in the axial direction of the variable-diameter hollow part is equal-height radius, and the radius of the inlet side in the radius of the upper half part in the axial direction of the variable-diameter hollow part is smaller than the radius of the outlet side. The special reducing structure of the tapping hole is adopted, so that the tapping time and the production cycle are shortened on the basis of satisfying the service life, and the production efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel metallurgy industry, in particular to a steel-making converter. Background Art

[0002] The taphole of the converter is an important channel for pouring molten steel from the converter into the ladle. When tapping steel, it not only has to withstand the scouring of high-temperature slag and molten steel, but also the oxidation erosion caused by it. Therefore, the life of the taphole is relatively short and needs to be constantly repaired and replaced. A taphole with a short life will affect the production efficiency and quality of molten steel in steelmaking. The inner diameter of the traditional taphole is a straight cylinder. In actual use, when pouring molten steel, the molten steel fills the taphole, and the static pressure changes little, resulting in a long tapping time, which affects the smelting cycle and reduces production efficiency. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the purpose of the utility model is to provide a converter.

[0004] To achieve the above object, the converter of the utility model comprises: a steel tapping port; the steel tapping port comprises a steel tapping port seat brick, a steel tapping port sleeve brick, a filling layer and a steel pipe from the outside to the inside;

[0005] Among them, the steel outlet sleeve brick adopts an integral structure; the hollow part of the steel outlet sleeve brick is a variable diameter hollow part; the radius of the lower half of the axial direction of the variable diameter hollow part is a constant height radius, and the radius of the upper half of the axial direction of the variable diameter hollow part has an inlet side radius that is smaller than the outlet side radius.

[0006] Furthermore, the reduced diameter shape of the converter tapping port is semicircular in the lower half and elliptical in the upper half when viewed from the cross section.

[0007] Furthermore, the upward inclination angle of the axis of the outlet sleeve brick is 3°-5°.

[0008] Furthermore, the steel outlet is inclined upward as a whole.

[0009] In order to achieve the above-mentioned purpose, the utility model provides a converter tapping hole, wherein the tapping hole comprises a tapping hole seat brick, a tapping hole sleeve brick, a filling layer and a steel pipe from the outside to the inside;

[0010] Wherein, the tap hole sleeve brick adopts an integral structure;

[0011] The hollow part of the outlet sleeve brick is a variable diameter hollow part; the radius of the lower half of the variable diameter hollow part in the axial direction is a constant height radius, and the radius of the upper half of the variable diameter hollow part in the axial direction has an inlet side radius that is smaller than the outlet side radius.

[0012] Furthermore, the upward inclination angle of the axis of the outlet sleeve brick is 3°-5°.

[0013] Furthermore, the steel outlet is inclined upward as a whole.

[0014] Furthermore, the tapping port seat brick is a split seat brick.

[0015] The converter type of the utility model is a cone-spherical type. The steel outlet is composed of a split seat brick, an integral sleeve brick, a filling layer, and a steel pipe. By adopting a special variable diameter structure of the steel outlet, the steel tapping time and the production cycle are shortened while meeting the service life, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a cone-spherical converter with a steel outlet of the converter of the utility model.

[0017] Figure 2 It is a partial schematic diagram of the steel outlet of the converter of the utility model.

[0018] Figure 3 for Figure 2 1-1 is a schematic cross-sectional view of .

[0019] Figure 4 for Figure 2 Schematic diagram of the cross section 2-2. DETAILED DESCRIPTION

[0020] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0021] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-Figure 4 As shown, a structure of a steel-making workshop tapping port of a converter is shown, wherein the converter is a conical-spherical converter 1, and the tapping port 2 is composed of a tapping port base brick 3, a tapping port sleeve brick 4, a filling layer 5, and a steel pipe 6; the tapping port base brick 3 adopts a split structure; the tapping port sleeve brick 4 adopts an integral structure; the inner diameter of the tapping port sleeve brick 4 is not a straight cylinder type, and is a variable diameter tapping port; the variable diameter shape of the furnace tapping port is horizontal at the bottom and inclined upward at the top when viewed from the longitudinal section.

[0025] Furthermore, the reduced diameter shape of the furnace tapping port is semicircular in the lower half and elliptical in the upper half when viewed from the cross section.

[0026] Furthermore, the variable diameter shape of the converter steel outlet has an upward inclination angle of 3° at the upper part when viewed from the longitudinal section.

[0027] Furthermore, the steel outlet is inclined upward as a whole.

[0028] The utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the utility model. Many other changes and modifications that do not depart from the concept and scope of the utility model should be considered as the protection scope of the utility model.

[0029] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A converter, characterized in that: include: The steel outlet comprises a steel outlet seat brick, a steel outlet sleeve brick, a filling layer and a steel pipe from the outside to the inside; The tapping port sleeve brick adopts an integral structure; the hollow portion of the tapping port sleeve brick is a variable diameter hollow portion; the radius of the lower half of the variable diameter hollow portion in the axial direction is a constant height radius, and the radius of the upper half of the variable diameter hollow portion in the axial direction has an inlet side radius that is smaller than the outlet side radius; The reduced diameter shape of the steel outlet of the converter is semicircular in the lower half and elliptical in the upper half when viewed from the cross section; The upward inclination angle of the axis of the outlet sleeve brick is 3°-5°; The steel outlet is generally inclined upward.

Images