CN215050468U

CN215050468U - Tap hole head brick for eccentric electric furnace

Info

Publication number: CN215050468U
Application number: CN202120196350.5U
Authority: CN
Inventors: 陈正常; 马军强; 蔚文绪; 余金红; 陈嗣晟
Original assignee: Luoyang Kechuang New Material Co ltd
Current assignee: Luoyang Kechuang New Material Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-12-07
Anticipated expiration: 2031-01-25

Abstract

The utility model provides an eccentric electric stove is with first brick of tap hole, is including the first brick body of tap hole that is equipped with the flowing steel hole, still including the subassembly of blowing, the subassembly of blowing is including encircleing the flowing steel hole sets up the female pipe of blowing that is close to the bottom in the first brick body of tap hole, blow be equipped with on the female pipe a plurality of with the sub-pipe of blowing of flowing steel hole intercommunication, the sub-pipe of blowing is the straight tube form that sets up in the slant, it stretches out to be equipped with on the female pipe of blowing the intake pipe of the first brick body of tap hole, the intake pipe is used for carrying argon gas to the female pipe of blowing. The utility model discloses form the ascending argon gas air current opposite with molten steel outflow direction in the flowing hole, make the slag come-up of smuggleing secretly in the molten steel to eccentric electric stove in, reduce the erosion and the washing away of slag to the first brick of tap-hole, improve the life of the first brick of tap-hole, simultaneously, can also reduce the pollution of slag to the pouring molten steel, improve the quality of casting molten steel.

Description

Tap hole head brick for eccentric electric furnace

Technical Field

The utility model relates to the technical field of metallurgical industry steelmaking, in particular to a tap hole head brick for an eccentric electric furnace.

Background

The tap hole head brick for the eccentric electric furnace is arranged in a slag baffle plate connected with the tap hole of the eccentric electric furnace and is mostly made of high-temperature-resistant materials so as to ensure that steel does not leak during molten steel casting.

However, some steel slag is often entrained in the molten steel, and when the conventional tap-hole head brick is cast with the molten steel, the steel flow hole of the tap-hole head brick is easily corroded and washed by the steel slag in the molten steel, so that the service life of the tap-hole head brick is short, the tap-hole head brick has to be frequently replaced, and meanwhile, the steel slag flowing out of the tap-hole head brick can pollute the cast molten steel and reduce the quality of the molten steel.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a first brick of tap-hole for eccentric electric furnace, it can form in the flowing hole with the ascending argon gas air current that the molten steel outflow opposite direction, make the slag that smugglies secretly among the molten steel come up to eccentric electric furnace in, reduce the erosion and the washing away of slag to the first brick of tap-hole, improve the life of the first brick of tap-hole, simultaneously, can also reduce the pollution of slag to the pouring molten steel, improved the quality of casting molten steel.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

the utility model provides an eccentric electric stove is with first brick of tap hole, is including the first brick body of tap hole that is equipped with the flowing steel hole, still including the subassembly of blowing, the subassembly of blowing is including encircleing the flowing steel hole sets up the female pipe of blowing that is close to the bottom in the first brick body of tap hole, blow be equipped with on the female pipe a plurality of with the sub-pipe of blowing of flowing steel hole intercommunication, the sub-pipe of blowing is the straight tube form that sets up in the slant, it stretches out to be equipped with on the female pipe of blowing the intake pipe of the first brick body of tap hole, the intake pipe is used for carrying argon gas to the female pipe of blowing.

Furthermore, the air blowing sub-pipes are uniformly distributed on the air blowing main pipe.

Further, the air blowing sub-pipe is a stainless steel pipe with the pipe diameter of 1 mm.

Furthermore, an inverted U-shaped air duct is arranged between the air blowing sub-tube and the air blowing main tube, one end of the air duct is communicated with the air blowing sub-tube, and the other end of the air duct is communicated with the air blowing main tube.

Furthermore, the number of the air inlet pipes is two, and the air inlet pipes are symmetrically distributed on the air blowing main pipe.

Furthermore, the upper end face and the lower end face of the tap hole head brick body are provided with inwards concave grooves around the steel flow hole.

The utility model discloses beneficial effect:

1. the utility model discloses to encircle the steel flow hole setting mother pipe of blowing in the first brick body of steel-tapping hole, the straight tubulose that sets up a plurality of slant settings on the mother pipe of blowing, form the ascending argon gas air current opposite with molten steel outflow direction in making the steel flow hole, with this with in the molten steel slag come-up of smuggleing secretly come-up to eccentric electric stove, the erosion and the washing away of the first brick of steel-tapping hole of slag have been reduced, thereby the life of the first brick of steel-tapping hole has been prolonged, and simultaneously, owing to reduced the slag of smuggleing secretly in the outflow molten steel, the quality of casting molten steel has been improved.

2. The utility model discloses set up the U-shaped air duct of inversion between the female pipe of blowing and the son pipe of blowing, effectively prevent that the molten steel from flowing into the female pipe of blowing, improved the security of the subassembly of blowing.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment;

FIG. 2 is a schematic diagram of a blow-down assembly according to an embodiment;

FIG. 3 is a schematic structural diagram according to a second embodiment;

FIG. 4 is a schematic structural view of a second blowing assembly according to an embodiment; .

The labels in the figure are: 1. the steel flow hole, 2, recess, 3, the tap hole head brick body, 4, the son pipe of blowing, 5, the air duct, 6, the female pipe of blowing, 7, intake pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Example one

As shown in fig. 1 to 2, a tap hole head brick for an eccentric electric furnace, including the tap hole head brick body 3 that is equipped with flowing hole 1, still include the subassembly of blowing, the subassembly of blowing is including encircleing flowing hole 1 sets up the female pipe 6 of blowing that is close to the bottom in tap hole head brick body 3, be equipped with on the female pipe 6 of blowing a plurality of with the son pipe 4 of blowing of flowing hole 1 intercommunication, the son pipe 4 of blowing is the straight tube form that sets up in the slant, and during concrete implementation, the son pipe 4 of blowing can the equipartition on the female pipe 6 of blowing to increase the homogeneity of blowing, the stainless steel pipe that the internal diameter is 1mm can be chooseed for use to the son pipe 4 of blowing, and at this moment, the son pipe 4 of blowing can evenly set up 18 on the female pipe 6 of giving vent to anger.

The steel tapping hole head brick comprises a steel tapping hole head brick body 3, an air inlet pipe 7 is arranged on a blowing main pipe 6 and extends out of the steel tapping hole head brick body 3, the air inlet pipe 7 is used for conveying argon to the blowing main pipe 6, the air inlet pipe 7 can be provided with two air inlet pipes which are symmetrically distributed on the blowing main pipe 6, after the argon with proper pressure is conveyed into the blowing main pipe 6, the argon enters each blowing sub-pipe 4 through the blowing main pipe 6 and then enters a steel tapping hole 1, ascending argon airflow opposite to the flowing direction of molten steel is formed in the steel tapping hole 1, steel slag carried in the molten steel floats upwards to an eccentric electric furnace through the ascending argon airflow, erosion and scouring of the steel slag to the steel tapping hole head brick are reduced, the service life of the steel tapping hole head brick is prolonged, meanwhile, the steel slag carried in the tapping water is reduced, pollution of the steel slag to pouring molten steel is reduced, and the quality of the casting molten steel is improved.

Further, center on the upper and lower terminal surface of first brick body of tap-hole 3 steel flow hole 1 is equipped with the recess 2 of indent respectively, and recess 2 can set up and be the trapezoidal form of cross-section for invering, and recess 2 of up end can make the first brick of tap-hole more convenient installation on the tap-hole of eccentric electric stove, and recess 2 of lower terminal surface can make the first brick of tap-hole more convenient be connected with the interior flashboard of pushing off the slag device.

Example two

As shown in fig. 3 to 4, different from the first embodiment, an inverted U-shaped air duct 5 is arranged between the air blowing sub-tube 4 and the air blowing main tube 6, one end of the air duct 5 is communicated with the air blowing sub-tube 4, and the other end is communicated with the air blowing main tube 6, when the air duct 5 is specifically arranged, the air duct 5 can be obliquely arranged, so that the condition that the horizontal position of the tube opening of the air blowing sub-tube 4 in the tap hole head brick body 3 is lower than the horizontal position of the U-shaped middle section of the air duct 5 is only required, after air blowing is finished, if residual molten steel flows into the air blowing sub-tube 4, the molten steel can be retained in the air blowing sub-tube 4 due to the air duct 5, and therefore the molten steel is prevented from flowing into the air blowing main tube 6, and the safety of the air blowing assembly is improved.

Through implementing the utility model discloses, can form the argon gas air current that rises in the steel flow hole of the first brick of tap-hole, during the slag come-up to eccentric electric stove smuggleing secretly in making the molten steel, reduce the erosion and the washing away of the first brick of tap-hole of slag, improve the life of the first brick of tap-hole, simultaneously, can also reduce the pollution of slag to the casting molten steel, improve the quality of casting molten steel.

It should be noted that the above embodiments are only used for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention all fall into the protection scope of the present invention.

Claims

1. The utility model provides a first brick of tap-hole for eccentric electric stove, is including the first brick body of tap-hole (3) that is equipped with flowing hole (1), its characterized in that still including the subassembly of blowing, the subassembly of blowing is including encircleing the female pipe (6) of blowing that flowing hole (1) set up near the bottom in first brick body of tap-hole (3), be equipped with on the female pipe (6) of blowing a plurality of with the son pipe (4) of blowing of flowing hole (1) intercommunication, the son pipe (4) of blowing are the straight tube form that sets up in the slant, be equipped with on the female pipe (6) of blowing and stretch out the intake pipe (7) of the first brick body of tap-hole (3), intake pipe (7) are used for carrying argon gas to the female pipe (6) of blowing.

2. The tap hole head brick for the eccentric electric furnace according to claim 1, characterized in that the blowing sub-pipes (4) are evenly distributed on the blowing main pipe (6).

3. The tap hole head brick for the eccentric electric furnace according to claim 2, characterized in that the gas blowing sub-pipe (4) is a stainless steel pipe with a pipe diameter of 1 mm.

4. The tap hole head brick for the eccentric electric furnace according to claim 1, characterized in that an inverted U-shaped air duct (5) is arranged between the air blowing sub-tube (4) and the air blowing main tube (6), one end of the air duct (5) is communicated with the air blowing sub-tube (4), and the other end is communicated with the air blowing main tube (6).

5. The tap hole head brick for the eccentric electric furnace according to claim 1, characterized in that the two air inlet pipes (7) are symmetrically arranged on the air blowing main pipe (6).

6. The tap hole head brick for an eccentric electric furnace according to claim 1, characterized in that concave grooves (2) are formed on the upper and lower end surfaces of the tap hole head brick body (3) around the tap hole (1).