CN216420496U

CN216420496U - Special tool for cleaning ladle nozzle sleeve

Info

Publication number: CN216420496U
Application number: CN202123041030.1U
Authority: CN
Inventors: 李旭友; 焦学义; 王珊珊; 杨德财; 任志文; 薛存钢; 张守平
Original assignee: Heilongjiang Jianlong Iron and Steel Co Ltd
Current assignee: Heilongjiang Jianlong Iron and Steel Co Ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-03
Anticipated expiration: 2031-12-07

Abstract

The utility model belongs to the technical field of steel production equipment, concretely relates to a specialized tool for ladle mouth of a river sleeve pipe clearance, specialized tool include bowl form sweeping head, disc and sweep the pipe, the welding of bowl form sweeping head is in the disc bottom, sweep the pipe welding on the centre bore of disc, open the bottom of bowl form sweeping head has the honeycomb exhaust hole, opens the side exhaust hole of circumference equipartition on its lateral wall. When the tool is used for cleaning the sleeve, the disc is used for covering the upper opening of the water gap sleeve, so that steel slag splashing is reduced; the side exhaust hole flow is used for protecting the sleeve bowl part, so that the splashing and adhesion of steel slag to the bowl part are reduced; the honeycomb exhaust holes are used for cleaning the water gap sleeve, so that no dead angle exists; the burning loss of the single air hole of the oxygen lance to refractory materials is reduced, the structure is simple, the design is reasonable, the cost is low, and the oxygen lance is safe and reliable.

Description

Special tool for cleaning ladle nozzle sleeve

Technical Field

The utility model belongs to the technical field of steel production equipment, concretely relates to specialized tool for clearance of ladle mouth of a river sleeve pipe.

Background

The cleaning of the continuous casting ladle nozzle sleeve of the existing steel plant is basically performed by oxygen gun blowing, so that the burning loss of refractory materials at the nozzle wrist part is large, and the service life of the sleeve is shortened; because the oxygen lance has a hole for air flow, the residual steel in the water gap sleeve can not be cleaned completely, and cold steel can not be cleaned completely; in the cleaning process, the steel slag splashes and rebounds and is easily stuck to the bowl part of the sleeve, the sealing property is affected, and the secondary oxidation of the molten steel is caused. In addition, in the cleaning process, the upper opening is not covered, and steel flowers are easy to splash and easily hurt people. Therefore, it is necessary to design a safe and reliable special tool for cleaning the ladle nozzle sleeve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a safe and reliable special tool for cleaning a steel ladle nozzle sleeve, when the tool is used for cleaning the sleeve, a disc is utilized to cover the upper opening of the nozzle sleeve, and steel slag splashing is reduced; the side exhaust hole flow is used for protecting the sleeve bowl part, so that the splashing and adhesion of steel slag to the bowl part are reduced; the honeycomb exhaust holes are used for cleaning the water gap sleeve, so that no dead angle exists; the burning loss of the single air hole of the oxygen lance to refractory materials is reduced, the structure is simple, the design is reasonable, the cost is low, and the oxygen lance is safe and reliable.

The utility model adopts the technical proposal that: a special tool for cleaning a sleeve of a water gap of a steel ladle comprises a bowl-shaped blowing head, a disc and a blowing pipe, wherein the bowl-shaped blowing head is welded at the bottom of the disc, the blowing pipe is welded on a central hole of the disc, honeycomb exhaust holes are formed in the bottom of the bowl-shaped blowing head, and side exhaust holes are formed in the side wall of the bowl-shaped blowing head and are circumferentially and uniformly distributed.

The utility model has the advantages that: the special tool for cleaning the ladle nozzle sleeve is safe and reliable, when the tool is used for cleaning the sleeve, the disc is used for covering the upper opening of the nozzle sleeve, and steel slag splashing is reduced; the side exhaust hole flow is used for protecting the sleeve bowl part, so that the splashing and adhesion of steel slag to the bowl part are reduced; the honeycomb exhaust holes are used for cleaning the water gap sleeve, so that no dead angle exists; the burning loss of the single air hole of the oxygen gun to the refractory material is reduced. On one hand, the steel sheath pipe is cleaned, so that burning loss of the refractory material at the wrist part of the steel sheath pipe is reduced, and steel slag splashes to hurt people during cleaning; on the other hand, the phenomenon that steel slag is splashed and stuck to the wrist of the sleeve is reduced, the sealing performance between the sleeve and a ladle nozzle is prevented from being damaged, and the secondary oxidation of molten steel is reduced. Simple structure, reasonable design, low cost, safety and reliability.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

fig. 2 is a bottom view of fig. 1.

Detailed Description

Example one

Referring to fig. 1 and 2, the special tool for cleaning the ladle nozzle sleeve comprises a bowl-shaped blowing head 1, a disc 2 and a blowing pipe 3, wherein the bowl-shaped blowing head 1 is welded at the bottom of the disc 2, the blowing pipe 3 is welded on a central hole of the disc 2, the bottom of the bowl-shaped blowing head 1 is provided with honeycomb exhaust holes 5, and the side wall of the bowl-shaped blowing head is provided with side exhaust holes 4 which are uniformly distributed in the circumferential direction.

Before purging the water gap sleeve, the oxygen valve is opened by one fourth, the oxygen steel pipe is held by hand, the purging head and the bowl of the water gap sleeve are closed, the oxygen valve is fully opened, and after purging is finished, the purging tool is taken away, and then the oxygen valve is closed. Oxygen enters the bowl-shaped blowing head through the pipeline and is discharged through each air hole, the diameter of the conveying pipe is larger than the aperture of each air hole, the injection pressure is increased, and solidified residual steel and residues in the sleeve pipe are effectively cleaned. The bowl-shaped blowing head is tightly matched with the bowl part of the water gap sleeve, oxygen overflow can be reduced on the outer circumference of the disc, the blowing strength is improved, oxygen waste and steel slag splashing are reduced, slag adhesion of the bowl part of the water gap is reduced through the side exhaust holes, the problem that blowing is incomplete due to pipeline blockage is reduced through the front honeycomb blowing holes, the inner wall of the water gap can be blown at a full angle, and the steel slag on the inner wall can be thoroughly cleaned.

Claims

1. The utility model provides a specialized tool that is used for ladle mouth of a river sleeve pipe to clear up which characterized in that: the special tool comprises a bowl-shaped blowing head (1), a disc (2) and a blowing pipe (3), wherein the bowl-shaped blowing head (1) is welded at the bottom of the disc (2), the blowing pipe (3) is welded at a center hole of the disc (2), honeycomb exhaust holes (5) are formed in the bottom of the bowl-shaped blowing head (1), and side exhaust holes (4) are circumferentially and uniformly distributed in the side wall of the bowl-shaped blowing head.