CN217077669U

CN217077669U - Blanking pipe of refining furnace

Info

Publication number: CN217077669U
Application number: CN202220895926.1U
Authority: CN
Inventors: 王惟; 邓磊; 陈凯; 何林; 任凤玲
Original assignee: Chongqing Iron and Steel Co Ltd
Current assignee: Chongqing Iron and Steel Co Ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-29
Anticipated expiration: 2032-04-18

Abstract

The utility model belongs to the field of a feeding pipe of a steelmaking refining furnace, and relates to a feeding pipe of a refining furnace, which comprises an outer layer pipe and an inner layer pipe sleeved in the outer layer pipe, wherein a sleeve pipe structure is formed between the outer layer pipe and the inner layer pipe; a water inlet joint communicated with cooling water is arranged below the outer layer pipe, and a water outlet joint is arranged on the outer layer pipe above the sleeve pipe structure; compared with the prior structure, the utility model can prolong the service life of the blanking pipe (reduce the problems of bottom slag accumulation and bottom water mobility difference), thereby improving the cooling capacity of the blanking and further prolonging the service life.

Description

Blanking pipe of refining furnace

Technical Field

The utility model belongs to steelmaking refining furnace unloading pipe field relates to a refining furnace unloading pipe.

Background

At present, an LF furnace blanking pipe directly enters a molten steel tank, the working temperature is high, the refining furnace blanking pipe is in a sleeve structure form, two layers of pipelines are concentrically arranged, the upper end part and the lower end part are welded and sealed by adopting sealing strips, and the upper end and the lower end of the refining furnace blanking pipe are respectively provided with a water inlet pipeline and a water outlet pipeline. According to the structure, the water inlet pipe at the bottom cannot be close to the sealing strip at the bottommost part, so that the water inlet fluidity of the part is poor, and the cooling water has trace impurities, so that the impurities can be deposited at the bottom of the blanking pipe after the cooling water is used for a long time, and the cooling water cannot enter the bottom, so that the cooling capacity at the bottom is insufficient, and the water leakage exists at the bottom of the blanking pipe.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a refining furnace unloading pipe solves LF stove unloading socle portion cooling water mobility, reduces the problem of the long-pending sediment of unloading socle portion simultaneously to improve the life-span of unloading pipe.

In order to achieve the above purpose, the utility model provides a following technical scheme: a feeding pipe of a refining furnace comprises an outer layer pipe and an inner layer pipe sleeved in the outer layer pipe, wherein a sleeve pipe structure is formed between the outer layer pipe and the inner layer pipe; and a water inlet joint communicated with cooling water is arranged below the outer layer pipe, and a water outlet joint is arranged on the outer layer pipe above the sleeve structure.

Optionally, a top cover plate is arranged on the top of the outer layer pipe and the top of the inner layer pipe, and the top cover plate seals the sleeve structure.

Optionally, a flange is further arranged below the outer layer pipe and below the water inlet joint, and the outer layer pipe and the inner layer pipe are fixed on the furnace cover through the flange.

Optionally, the water inlet joint is arranged in a 7 shape, one side of the water inlet joint is parallel to the outer layer pipe, and the other side of the water inlet joint forms a certain angle with the outer layer pipe.

Optionally, the water inlet joint, the sleeve structure and the water outlet joint are communicated structures.

Optionally, a circular coil pipe is further arranged between the bottom of the outer layer pipe and the bottom of the inner layer pipe, and the circular coil pipe is communicated with the inside of the sleeve structure and the water inlet connector respectively.

The beneficial effects of the utility model reside in that: the utility model relates to a refining furnace unloading pipe, with current structure contrast, can improve the life of unloading pipe (reduce the long-pending sediment in bottom and the poor problem of bottom water mobility) to improve the cooling capacity of unloading, and then improve life.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the overall structure of a feeding pipe of a refining furnace.

Reference numerals: the water inlet pipe comprises a water inlet joint 1, a circular coil pipe 2, a flange 3, an outer layer pipe 4, an inner layer pipe 5, a top cover plate 6 and a water outlet joint 7.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to 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, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1, a feeding tube of a refining furnace includes an outer tube 4 and an inner tube 5 sleeved in the outer tube 4, wherein a sleeve structure is formed between the outer tube 4 and the inner tube 5; outer 4 belows of pipe are provided with water supply connector 1 with the cooling water intercommunication, the bushing structure top is provided with water supply connector 7 on outer pipe 4, outer pipe 4 is provided with top apron 6 with the top of inlayer pipe 5, this top apron 6 is sealed with the bushing structure, outer pipe 4 below is less than water supply connector 1's place still is provided with flange 3, outer pipe 4 is fixed on the furnace lid through this flange 3 with inlayer pipe 5, water supply connector 1 sets up to 7 fonts, it parallels on one side with outer pipe 4, the another side becomes certain angle with outer pipe 4, water supply connector 1, bushing structure and water supply connector 7 are the structure of intercommunication, still be provided with circular coil pipe 2 between outer pipe 4 bottom and the 5 bottoms of inlayer pipe, this circular coil pipe 2 communicates with the inside and water supply connector 1 of bushing structure respectively.

The utility model discloses behind water supply connector 1, circular coil pipe 2, the bushing structure, the cooling water through the heat exchange is discharged from water connectors 7.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a refining furnace unloading pipe which characterized in that: the outer layer pipe and the inner layer pipe are sleeved in the outer layer pipe, and a sleeve structure is formed between the outer layer pipe and the inner layer pipe;

and a water inlet joint communicated with cooling water is arranged below the outer layer pipe, and a water outlet joint is arranged on the outer layer pipe above the sleeve structure.

2. The finer blanking tube of claim 1, wherein: the top of outer layer pipe and inlayer pipe is provided with the top apron, and this top apron is sealed the sleeve pipe structure.

3. The finer blanking tube of claim 1, wherein: a flange is arranged below the outer layer pipe and below the water inlet joint, and the outer layer pipe and the inner layer pipe are fixed on the furnace cover through the flange.

4. The finer blanking tube of claim 1, wherein: the water inlet joint is arranged in a 7 shape, one side of the water inlet joint is parallel to the outer layer pipe, and the other side of the water inlet joint forms a certain angle with the outer layer pipe.

5. The finer blanking tube of claim 1, wherein: and a circular coil is also arranged between the bottom of the outer layer pipe and the bottom of the inner layer pipe, and the circular coil is respectively communicated with the inside of the sleeve structure and the water inlet joint.