CN216663139U

CN216663139U - Wear-resistant sleeve for hot-blast stove of steel mill

Info

Publication number: CN216663139U
Application number: CN202220053011.6U
Authority: CN
Inventors: 查士荣; 王成立
Original assignee: Anhui Zhongyi Valve Group Co ltd
Current assignee: Anhui Zhongyi Valve Group Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-06-03
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a wear-resistant sleeve for a hot blast stove of a steel mill, which comprises a sleeve main body, wherein a plurality of groups of reinforcing rod ribs are arranged on the inner wall of the sleeve main body, a high-temperature resistant layer is arranged on the outer wall of the sleeve main body, a wear-resistant coating is arranged on the outer wall of the sleeve main body, and the wear resistance of the surface of the sleeve main body and the outside can be effectively reduced due to the extremely high wear resistance of the wear-resistant coating, so that the service life of the sleeve main body is effectively prolonged, the high-temperature resistant layer is arranged in the sleeve main body through the arranged high-temperature resistant layer, so that the high-temperature resistant performance of the inner wall of the sleeve main body can be improved through the high-temperature resistant layer, the long-time use of the sleeve main body is facilitated, and the heat emitted by the high-temperature resistant layer can be absorbed by the heat-insulating layer through the heat-resistant layer and the heat-resistant coating, so that the heat of the high-temperature resistant layer is prevented from being transmitted to the outside of the sleeve main body, the condition that personnel scald when touching the sleeve pipe main part is led to, the holistic security of device has been improved.

Description

Wear-resistant sleeve for hot-blast stove of steel mill

Technical Field

The utility model relates to the technical field of auxiliary equipment of hot blast stoves in steel mills, in particular to a wear-resistant sleeve for the hot blast stove in the steel mill.

Background

The blast furnace hot blast stove is one of main supporting equipment of iron works blast furnace, generally a blast furnace is furnished with 3 ~ 4 hot-blast stoves, and the effect of hot-blast stove is for the blast furnace is continuous provides the high temperature hot-blast of more than 1000 degrees. The advanced modern hot blast stove has the air temperature of 1300 ℃.

The hot blast stove of the steel mill on the market usually needs a sleeve when in use, and the sleeve surface can be abraded for a plurality of times due to the long-time use of the sleeve, the service life of the sleeve is greatly reduced, the sleeve is easy to soften under the high temperature of the hot blast stove of the steel mill, and the sleeve surface generates high temperature and is easy to scald human bodies,

we propose a wear-resistant bushing for hot blast furnaces in steel mills to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a wear-resistant sleeve for a hot blast furnace in a steel mill, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a wear-resisting sleeve pipe for hot-blast furnace of steel mill, includes the sleeve pipe main part, sleeve pipe main part inner wall is provided with the multiunit stiffener muscle, sleeve pipe main part inner wall outside is provided with high temperature resistant layer, sleeve pipe main part outer wall is provided with wear-resisting coating, be provided with the insulating layer between high temperature resistant layer and the wear-resisting coating.

As a preferable technical scheme of the utility model, a plurality of groups of reinforcing bar ribs are distributed on the inner wall of the sleeve main body at equal intervals.

As a preferred technical scheme of the utility model, the high-temperature resistant layer is made of titanium diboride.

As a preferable technical scheme of the utility model, the heat insulation layer is made of a vacuum heat insulation plate.

As a preferable technical scheme of the utility model, the wear-resistant coating is coated on the surface of the sleeve main body.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. the wear-resistant coating arranged outside the sleeve main body has extremely high wear resistance, so that the wear of the surface of the sleeve main body and the outside can be effectively reduced, and the service life of the sleeve main body is effectively prolonged;

2. the high-temperature-resistant layer is arranged in the sleeve main body through the arranged high-temperature-resistant layer, so that the high-temperature-resistant performance of the inner wall of the sleeve main body can be improved through the high-temperature-resistant layer, the long-time use of the sleeve main body is facilitated, and the heat emitted by the high-temperature-resistant layer can be absorbed by the heat-insulating layer through the heat-insulating layer arranged on the high-temperature-resistant layer and the wear-resistant coating, so that the condition that personnel are scalded when touching the sleeve main body due to the fact that the heat of the high-temperature-resistant layer is transmitted to the outside of the sleeve main body is avoided, and the safety of the whole device is improved;

3. through the stiffener muscle that sets up, it has the multiunit stiffener muscle to distribute at the equidistant of sleeve pipe main part inner wall, lets the stiffener muscle can form whole support to sleeve pipe main part inner wall, has increased the holistic hardness of sleeve pipe main part, has avoided the sleeve pipe main part to receive high temperature to toast and produce softening, leads to the whole problem that breaks away from the hot-blast furnace of sleeve pipe main part.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top cross-sectional view of the present invention;

fig. 3 is an enlarged view of a in fig. 1 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a cannula body; 2. a reinforcing bar rib; 3. a high temperature resistant layer; 4. a thermal insulation layer; 5. wear-resistant paint.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental procedures in the following examples were carried out in a conventional manner unless otherwise specified, and materials, reagents and the like used in the following examples were commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-3, a wear-resistant sleeve for a hot-blast furnace in a steel mill comprises a sleeve main body 1, wherein a plurality of groups of reinforcing bar ribs 2 are arranged on the inner wall of the sleeve main body 1, a high-temperature resistant layer 3 is arranged outside the inner wall of the sleeve main body 1, a wear-resistant coating 5 is arranged on the outer wall of the sleeve main body 1, and a heat-insulating layer 4 is arranged between the high-temperature resistant layer 3 and the wear-resistant coating 5;

in other embodiments, the groups of reinforcing bar ribs 2 are distributed on the inner wall of the sleeve main body 1 at equal intervals;

through this design, let the stiffener muscle 2 can form whole support to 1 inner walls of sleeve pipe main part, increased the holistic hardness of sleeve pipe main part 1, avoided sleeve pipe main part 1 to receive high temperature to toast and produce the softening, lead to the whole problem that breaks away from the hot-blast furnace of sleeve pipe main part 1.

In other embodiments, the high temperature resistant layer 3 is made of titanium diboride, because the oxidation resistance temperature of the titanium diboride in the air can reach 1000 ℃, the high temperature resistance of the inner wall of the casing main body 1 can be greatly improved, and the casing main body 1 can be conveniently used for a long time;

in other embodiments, the heat insulation layer 4 is made of a vacuum heat insulation plate, and the vacuum heat insulation plate is formed by compounding a filling core material and a vacuum protection surface layer, so that heat transfer caused by air convection is effectively avoided, the heat conductivity coefficient can be greatly reduced, the characteristics of environmental protection, high efficiency and energy saving are realized, and heat transferred by the high temperature resistant layer 3 can be effectively isolated;

in other embodiments, the wear-resistant paint 5 is coated on the surface of the sleeve main body 1;

through this design, the wear-resistant coating 5 of being convenient for is whole at the outside use of sleeve pipe main part 1 to can effectively reduce the wearing and tearing of sleeve pipe main part 1 surface and external world, thereby effectively prolonged sleeve pipe main part 1's life.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wear-resisting sleeve pipe for steel mill hot-blast furnace, includes sleeve pipe main part (1), its characterized in that: the sleeve is characterized in that a plurality of groups of reinforcing rod ribs (2) are arranged on the inner wall of the sleeve main body (1), a high-temperature-resistant layer (3) is arranged outside the inner wall of the sleeve main body (1), wear-resistant paint (5) is arranged on the outer wall of the sleeve main body (1), and a heat-insulating layer (4) is arranged between the high-temperature-resistant layer (3) and the wear-resistant paint (5).

2. The wear-resistant sleeve for the hot-blast furnace of the steel mill as set forth in claim 1, wherein: the multiple groups of reinforcing rod ribs (2) are distributed on the inner wall of the sleeve main body (1) at equal intervals.

3. The wear-resistant sleeve for the hot-blast furnace of the steel mill according to claim 1, characterized in that: the high temperature resistant layer (3) is made of titanium diboride material.

4. The wear-resistant sleeve for the hot-blast furnace of the steel mill according to claim 3, wherein: the heat insulation layer (4) is made of a vacuum heat insulation plate.

5. The wear-resistant sleeve for the hot-blast furnace of the steel mill according to claim 2, characterized in that: the wear-resistant paint (5) is coated on the surface of the sleeve main body (1).