CN220376721U

CN220376721U - Blast furnace tuyere blocking tool

Info

Publication number: CN220376721U
Application number: CN202321809649.9U
Authority: CN
Inventors: 王士龙; 路海军; 石杰; 孟枭玮; 张静鹏
Original assignee: Hebei Puyang Iron and Steel Co Ltd
Current assignee: Hebei Puyang Iron and Steel Co Ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2024-01-23
Anticipated expiration: 2033-07-11

Abstract

The utility model provides a blast furnace tuyere blocking device, which comprises a large sleeve, a middle sleeve, a small sleeve, a transverse support, a blocking plate and stemming with water, wherein the blocking plate is manufactured according to the inner diameter of the small sleeve, a vertical support rod is welded at the center of the blocking plate, the transverse support rod is welded with the vertical support rod, and the transverse support rod is welded in a welding clamping sleeve which is extended or fixed on the extension of the large sleeve for fixing and supporting. Compared with the method for welding the steel plate by building the refractory bricks, the tool is convenient and quick to use, can effectively block the blast furnace tuyere, prevent the collapse material from being sprayed out, can effectively reduce the time for blocking the tuyere, and improves the operation efficiency.

Description

Blast furnace tuyere blocking tool

Technical Field

The utility model relates to the technical field of blast furnace tuyere plugging, in particular to a blast furnace tuyere plugging tool.

Technical Field

The iron and steel metallurgy enterprises are high-risk industries, particularly when blast furnace smelting processes, high temperature and high pressure are inflammable and explosive, blast furnace damping down is needed during blast furnace maintenance, furnace top and iron making related equipment, the condition that the material collapses is inevitably caused due to uncertain factors such as furnace conditions and the like during long-time damping down is needed, in order to prevent the material collapse from blocking the belly pipe, the belly pipe is required to be dismantled, a tuyere is required to be blocked after the belly pipe is dismantled, and red-hot coke is required to be blocked to prevent the material collapse from being ejected from the tuyere, so that various production safety accidents such as explosion, burning and scalding, fire and the like are caused, and the occurrence of accidents can be avoided if the tuyere is blocked and blocked firmly. The prior method is to block the air gap by using refractory bricks, then to weld the air gap from the extension of the large sleeve by using a steel plate, and to cut off the steel plate when the air gap is opened, thereby having large workload and complicated disassembly of the refractory bricks.

Disclosure of Invention

The utility model aims to provide a blast furnace tuyere-plugging tool so as to solve the problems of large workload and complicated working steps.

The utility model provides a blast furnace tuyere plugging tool, which comprises a large sleeve, a middle sleeve and a small sleeve, and is characterized in that the large sleeve is an outer side structure sleeve of the blast furnace tuyere plugging tool, the outer diameter of the middle sleeve is the same as the inner diameter of the large sleeve, the large sleeve wraps the middle sleeve, the outer diameter of the small sleeve is the same as the inner diameter of the middle sleeve, and the middle sleeve wraps the small sleeve;

a blocking plate is manufactured in the small sleeve, the blocking plate is a round steel plate manufactured according to the inner diameter of the small sleeve, and cement stemming is placed below the blocking plate;

a vertical supporting rod is welded at the center of the blocking plate;

preferably, the vertical support rod is welded with the transverse support rod;

preferably, the transverse supporting rod is welded on the extension of the large sleeve;

preferably, the large sleeve is cup-shaped.

Compared with the prior art, the utility model has the beneficial effects that:

1. the tool is convenient and quick to use, can effectively block the blast furnace tuyere and prevent the collapse material from being sprayed out.

2. The complex work can be effectively simplified.

3. The time for blocking the air inlet can be effectively reduced, and the operation efficiency is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

in the figure: 1. big sleeve, 2, middle sleeve, 3, small sleeve, 4, closure plate, 5, vertical support rod, 6, transverse support rod, 7, water stemming.

Detailed Description

For the purpose of making the objects, advantages and technical solutions of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "outer," "inner diameter," "outer diameter," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

When the blast furnace is overhauled in the furnace, the furnace top and related steelmaking facilities, the blast furnace is required to be used for damping down, the situation that the material collapse is difficult to happen due to uncertain factors such as furnace conditions and the like during the long-time damping down is required to be installed, the blast furnace tuyere blocking tool is a cup-shaped tool consisting of a large sleeve 1, a middle sleeve 2 and a small sleeve 3, the large sleeve 1 wraps the middle sleeve 2, the middle sleeve 2 wraps the small sleeve 3, a blocking plate 4 made of a round steel plate is placed in the small sleeve 3 according to the inner diameter of the small sleeve 3, a vertical supporting rod 5 is welded in the center of the blocking plate 4, a transverse supporting rod 6 and the vertical supporting rod 5 are welded with each other to be in a T shape, the transverse supporting rod 6 is welded on the extension of the large sleeve 1 for fixing, and water stemming 7 is placed below the blocking plate;

after the blast furnace is in a damping down state, the blast furnace damping-off tool is placed, a blocking plate 4 made of round steel plates is placed in the small sleeve 3 according to the inner diameter of the small sleeve 3 through the tool, so that various materials fall off, the operation is convenient, the bottom water stemming 7 blocks the tuyere, the water stemming 7 plays roles of sealing, preventing electric sparks, reducing dust and cooling and absorbing toxic harmful gases, various substances possibly sprayed out after the tuyere is in a damping down state are prevented, when the furnace wall is cleaned, various cleaned materials fall in the tool, the cleaning is convenient, after the furnace wall is cleaned, a belly pipe is installed, the blast furnace damping-off tool is taken away through a transverse supporting rod 6 which is fixedly welded on the large sleeve 1, after the blast furnace damping-off tool is checked, a worker leaves the tuyere, and the tuyere is opened, so that the blast furnace can normally operate.

Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The blast furnace tuyere blocking tool comprises a large sleeve (1), a middle sleeve (2) and a small sleeve (3), and is characterized in that the large sleeve (1) is an outer side structure sleeve of the blast furnace tuyere blocking tool, the outer diameter of the middle sleeve (2) is the same as the inner diameter of the large sleeve (1), the large sleeve (1) wraps the middle sleeve (2), the outer diameter of the small sleeve (3) is the same as the inner diameter of the middle sleeve (2), and the middle sleeve (2) wraps the small sleeve (3);

a blocking plate (4) is manufactured inside the small sleeve (3), the blocking plate (4) is a round steel plate manufactured according to the inner diameter of the small sleeve (3), and water stemming (7) is placed below the blocking plate (4);

the center of the blocking plate (4) is welded with a vertical supporting rod (5).

2. A blast furnace tuyere tool according to claim 1, wherein the top of the vertical supporting rod (5) is welded with the middle section of the transverse supporting rod (6).

3. A blast furnace tuyere tool according to claim 2, characterized in that the transverse supporting rods (6) are fixedly welded to the extension of the large sleeve (1).

4. A blast furnace tuyere tool according to claim 1, characterized by the fact that the large sleeve (1) is cup-shaped.