CN216938417U

CN216938417U - Tundish long nozzle baking device

Info

Publication number: CN216938417U
Application number: CN202220584165.8U
Authority: CN
Inventors: 邵长银; 赵明; 宣云宝
Original assignee: JIANGYIN HUARUN STEEL CO Ltd
Current assignee: JIANGYIN HUARUN STEEL CO Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-07-12
Anticipated expiration: 2032-03-17

Abstract

The utility model discloses a baking device for a medium-sized ladle and a long nozzle, which comprises an air extractor, a bracket device and an air feeder, wherein: the air exhaust device is arranged at the lower part of the long nozzle of the tundish and is connected with the opening at the lower part of the long nozzle of the tundish, the air supply device is inserted into the air exhaust device, and the bracket device is used for supporting the air exhaust device and the long nozzle of the tundish; the air extractor comprises an L-shaped pipeline, the L-shaped pipeline comprises a vertical pipe and a transverse pipe, and the lower part of the long water gap of the middle ladle is inserted into the upper opening of the vertical pipe; the air supply nozzle of the air supply device is inserted into the air extraction device.

Description

Tundish long nozzle baking device

Technical Field

The utility model relates to the field of steelmaking and continuous casting, in particular to a baking device for a medium-sized and long nozzle.

Background

Before the continuous casting steel casting production of ferrous metallurgy enterprises, a tundish for containing molten steel and a long nozzle for casting steel need to be baked so as to remove (force away) water in the tundish and the long nozzle refractory material and improve the quality of the molten steel. Because the integrated masonry of the long nozzles of the tundish is generally adopted at present, in the tundish baking process, the flame of a burner of a tundish baking mechanism is difficult to penetrate through the long nozzle of the long narrow channel, so that the long nozzle is damaged or other quality accidents are caused because the long nozzle is not baked well.

Therefore, the utility model provides a baking device for a medium-sized and long nozzle, which can well solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to realize the purpose of the utility model, the following technical scheme is adopted for realizing the purpose:

the utility model provides a well package long nozzle baking equipment, includes air exhaust device, bracket device and air supply unit, wherein: the air exhaust device is arranged at the lower part of the long nozzle of the tundish and is connected with the opening at the lower part of the long nozzle of the tundish, the air supply device is inserted into the air exhaust device, and the bracket device is used for supporting the air exhaust device and the long nozzle of the tundish; the air extractor comprises an L-shaped pipeline, the L-shaped pipeline comprises a vertical pipe and a transverse pipe, and the lower part of the long water gap of the middle ladle is inserted into the upper opening of the vertical pipe; the air supply nozzle of the air supply device is inserted into the air extraction device.

The baking device for the medium-sized and long nozzle comprises: the air exhaust device also comprises a joint, the upper end of the joint is large, the lower end of the joint is small, the lower end of the joint is welded with an upper opening of a vertical pipe of the L-shaped pipeline, and the lower part of the long water gap of the middle ladle is inserted into the joint from the upper end of the joint.

The baking device for the medium-sized and long nozzle comprises: and a high-temperature-resistant sealing ring is filled between the joint and the lower part of the middle-packaging long nozzle.

The baking device for the medium-sized and long nozzle comprises: the air exhaust device also comprises a silencer, wherein the silencer is cylindrical, one end of the silencer is welded with the open end of the transverse pipe of the L-shaped pipeline, and a large number of silencing holes are densely distributed on the silencer.

The baking device for the medium-sized and long nozzle comprises: the air supply device comprises an air supply nozzle, a mounting hole is formed in the pipe wall of the L-shaped pipeline, and the air supply nozzle is inserted into the L-shaped pipeline from the mounting hole and extends into a transverse pipe of the L-shaped pipeline.

The baking device for the medium-sized and long nozzle comprises: the air supply nozzle is connected with one end of a compressed air hose, and the other end of the compressed air hose is connected with a compressed air source.

The baking device for the medium-sized and long nozzle comprises: the tail part of the air feeding nozzle is provided with a threaded section which is used for being connected with one end of a compressed air hose.

The baking device for the medium-sized and long nozzle comprises: the bracket device comprises a support, a bracket and a balancing weight, wherein one end of the bracket is a bearing end, the bracket is hinged with the support on the upper part of the support, the bearing end of the bracket is sleeved on a vertical pipe of the L-shaped pipeline and is in bearing joint, the other end of the bracket is a balancing weight end, and the balancing weight can be detachably hung on the balancing weight end.

The baking device for the medium-sized and long nozzle comprises: the supporting end of the bracket is U-shaped.

The baking device for the medium-sized and long nozzle comprises: the upper part of the long water gap is connected with the tundish, and the gas nozzle is inserted into the tundish from the upper part of the tundish.

Drawings

FIG. 1 is a schematic structural view of a baking device with a medium-sized and long nozzle;

FIG. 2 is a cross-sectional view of the seal ring;

FIG. 3 is a partial schematic view of the air pumping device and the air feeding device;

fig. 4 is a schematic view of a bracket structure.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings 1-4.

As shown in fig. 1, the baking device with the long nozzle of the tundish comprises an air extractor, a bracket device and an air feeder, wherein the air extractor is arranged at the lower part of the long nozzle 1 of the tundish and is connected with an opening at the lower part of the long nozzle 1 of the tundish, the air feeder is inserted into the air extractor, and the bracket device is used for supporting the air extractor and the long nozzle of the tundish.

Wherein air exhaust device includes L shape pipeline 2, connect 3 and silencing device 5, L shape pipeline 2 includes a standpipe and violently manages, standpipe upper portion opening is connected with joint 3, joint 3 is heterotypic joint, the upper end is big, the lower extreme is little, lower extreme and L shape pipeline standpipe upper portion opening welded connection, well package long mouth of a river 1 lower part is inserted in joint 3, the size in the joint 3 slightly is greater than the long mouth of a river 1 lower part size of well package, it has high temperature fire-resistant flexible sealing washer 4 to fill between joint 3 and the long mouth of a river 1 lower part of well package for keep the sealed between long mouth of a river 1 and the 2 tip of L shape pipeline.

The upper part of the long nozzle 1 is connected with a molten steel containing bag 6 (namely a middle ladle), and a gas nozzle 7 is inserted into the molten steel containing bag 6 from the upper part of the molten steel containing bag 6.

As shown in fig. 2, the seal ring 4 has a shape similar to the shape of the joint 3, and has a large top and a small bottom.

As shown in fig. 1 and 3, the open end of the horizontal pipe of the L-shaped pipeline 2 is connected with a silencer 5, the silencer 5 is cylindrical, one end of the silencer is welded with the open end of the horizontal pipe of the L-shaped pipeline 2, and a large number of silencing holes are densely distributed on the silencer 5.

The air supply device comprises an air supply nozzle 12, a mounting hole is formed in the pipe wall of the L-shaped pipeline 2, and the air supply nozzle 12 is inserted into the L-shaped pipeline 2 from the mounting hole in the L-shaped pipeline 2 and extends into a transverse pipe of the L-shaped pipeline 2.

The air nozzle 12 has a threaded portion 13 at its end for connection to one end of a compressed air hose 11, and the other end of the compressed air hose 11 is connected to a compressed air source (not shown), such as an air compressor.

As shown in fig. 1 and 4, the bracket device includes a support 9, a bracket 8 and a weight block 10, wherein one end of the bracket 8 is a bearing end 14, which is a fork type, also called a U type, the bracket 8 is hinged with the support 9 on the upper portion of the support 9, the bearing end 14 of the bracket 8 is sleeved on the vertical pipe of the L-shaped pipe 2 and bears the joint 3, the other end of the bracket 8 is a weight end, and the weight block 10 is detachably hung on the weight end.

When the device works, in the baking process of the tundish, flame is sprayed out from the gas nozzle, compressed air is introduced into the compressed air hose, the compressed air passes through the nozzle at a high speed, a strong negative pressure area is formed around the nozzle, the negative pressure of the air extractor can "pull" the high-temperature incandescent flame in the tundish to penetrate through the long and narrow channel of the long water gap to bake the whole long water gap, and residual gas can be discharged into the atmosphere through the muffler device.

By the method, the long nozzle can be fully baked when the tundish is baked, the quality of steelmaking is ensured, and accidents such as long nozzle faults are avoided.

Claims

1. The utility model provides a well package long nozzle baking equipment, includes air exhaust device, bracket device and air supply unit, its characterized in that: the air exhaust device is arranged at the lower part of the long nozzle of the tundish and is connected with the opening at the lower part of the long nozzle of the tundish, the air supply device is inserted into the air exhaust device, and the bracket device is used for supporting the air exhaust device and the long nozzle of the tundish; the air extractor comprises an L-shaped pipeline, the L-shaped pipeline comprises a vertical pipe and a transverse pipe, and the lower part of the long water gap of the middle ladle is inserted into the upper opening of the vertical pipe; the air supply nozzle of the air supply device is inserted into the air extraction device.

2. The tundish nozzle baking device according to claim 1, characterized in that: the air exhaust device also comprises a joint, the upper end of the joint is large, the lower end of the joint is small, the lower end of the joint is welded with an upper opening of a vertical pipe of the L-shaped pipeline, and the lower part of the long water gap of the middle ladle is inserted into the joint from the upper end of the joint.

3. The tundish nozzle baking device according to claim 2, wherein: and a high-temperature-resistant sealing ring is filled between the joint and the lower part of the middle-packaging long nozzle.

4. The tundish nozzle baking device according to claim 2, wherein: the air exhaust device also comprises a silencer, wherein the silencer is cylindrical, one end of the silencer is welded with the open end of the transverse pipe of the L-shaped pipeline, and a large number of silencing holes are densely distributed on the silencer.

5. The tundish nozzle baking device according to claim 1, characterized in that: the air supply device comprises an air supply nozzle, a mounting hole is formed in the pipe wall of the L-shaped pipeline, and the air supply nozzle is inserted into the L-shaped pipeline from the mounting hole and extends into the transverse pipe of the L-shaped pipeline.

6. The tundish nozzle baking device according to claim 5, wherein: the air supply nozzle is connected with one end of a compressed air hose, and the other end of the compressed air hose is connected with a compressed air source.

7. The tundish nozzle baking device according to claim 6, wherein: the tail part of the air feeding nozzle is provided with a thread section which is used for being connected with one end of a compressed air hose.

8. The tundish long nozzle baking device according to claim 1, characterized in that: the bracket device comprises a support, a bracket and a balancing weight, wherein one end of the bracket is a bearing end, the bracket is hinged with the support on the upper part of the support, the bearing end of the bracket is sleeved on a vertical pipe of the L-shaped pipeline and is in bearing joint, the other end of the bracket is a balancing weight end, and the balancing weight can be detachably hung on the balancing weight end.

9. The tundish nozzle baking device according to claim 8, wherein: the supporting end of the bracket is U-shaped.

10. The tundish nozzle baking device according to claim 1, characterized in that: the upper part of the long water gap is connected with the tundish, and the gas nozzle is inserted into the tundish from the upper part of the tundish.