CN223509897U - Energy-saving tuyere small sleeve with embedded conical wear-resistant ceramic composite tube for blast furnace - Google Patents
Energy-saving tuyere small sleeve with embedded conical wear-resistant ceramic composite tube for blast furnaceInfo
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- CN223509897U CN223509897U CN202423163555.6U CN202423163555U CN223509897U CN 223509897 U CN223509897 U CN 223509897U CN 202423163555 U CN202423163555 U CN 202423163555U CN 223509897 U CN223509897 U CN 223509897U
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Abstract
本实用新型公开了一种高炉用内嵌锥形耐磨陶瓷复合管的节能风口小套，具体涉及炼铁厂高炉技术领域，包括风口小套本体，所述风口小套本体内部设置有锥形耐磨陶瓷复合管；所述锥形耐磨陶瓷复合管包括金属外壁层，所述金属外壁层内侧设置有陶瓷内壁层。本实用新型通过设有锥形耐磨陶瓷复合管，使本实用新型不仅更好地解决了煤粉流冲刷风口小套内壁导致小套内壁漏水的问题，更重要的一个功能就是大幅提高内壁陶瓷复合管的长度，最大程度上提高节能效果。
This utility model discloses an energy-saving tuyer sleeve with an embedded conical wear-resistant ceramic composite pipe for blast furnaces, specifically relating to the field of blast furnace technology in ironmaking plants. It includes a tuyer sleeve body, inside which a conical wear-resistant ceramic composite pipe is installed. The conical wear-resistant ceramic composite pipe includes a metal outer wall layer, and a ceramic inner wall layer is provided inside the metal outer wall layer. By incorporating the conical wear-resistant ceramic composite pipe, this utility model not only better solves the problem of water leakage caused by pulverized coal flow eroding the inner wall of the tuyer sleeve, but more importantly, it significantly increases the length of the inner ceramic composite pipe, maximizing energy-saving performance.
Description
Technical Field
The utility model relates to the technical field of blast furnaces in iron works, in particular to an energy-saving tuyere small sleeve with an embedded conical wear-resistant ceramic composite tube for a blast furnace.
Background
The blast furnace tuyere small sleeve is an important device in a blast furnace air inlet system, and has the effects that ultra-high temperature hot air is fed into a blast furnace, the material of the traditional tuyere small sleeve is red copper with the temperature of more than 95 percent, the traditional tuyere small sleeve has a cavity structure, cooling water is introduced into the cavity, the centremost conical inner wall is used for conveying the ultra-high temperature hot air, the tuyere small sleeve directly stretches into the blast furnace, the tail end of the tuyere small sleeve is a high-temperature environment of approximately 2000 ℃, liquid high-temperature slag iron is further inwards, the temperature of slag iron melt is more than 1400 ℃, and the temperature of hot air passing through the tuyere small sleeve is also more than 1100 ℃, so that the working environment of the tuyere small sleeve is extremely bad.
In order to reduce the smelting cost of the blast furnace and reduce the consumption of high-quality coke, relatively low-cost coal dust is blown into the blast furnace to replace part of coke, the coal dust can be dispersed to the periphery after being blown out from the tail end of a coal dust spray gun of the blast furnace, the dispersed coal dust possibly washes the inner wall of a small tuyere sleeve, the copper is softer and extremely not wear-resistant, the dispersed coal dust can grind the inner wall of the small tuyere sleeve in extremely short time, the safety production of the blast furnace is seriously affected by water leakage of the small tuyere sleeve, and serious accidents such as furnace wall adhesion, hearth accumulation, iron port splashing, furnace cooling and even hearth freezing can be caused by the fact that the inner wall of the small tuyere sleeve is not timely found, the coal dust spray gun of the blast furnace must extend towards the tail end of the small tuyere sleeve, but cannot extend too much because the working environment of the tail end of the small tuyere sleeve is too bad, the coal dust spray gun of the blast furnace is seriously damaged, and therefore, the outlet of the coal dust spray gun of the blast furnace extends to a certain distance from the tail end of the small tuyere sleeve, and the inner wall of the small tuyere sleeve is ensured.
However, in the actual use process of the blast furnace pulverized coal injection lance, deformation of the blast furnace pulverized coal injection lance caused by various reasons is unavoidable, and the condition that the blast furnace pulverized coal injection lance flushes the inner wall of the tuyere small sleeve is also unavoidable.
Therefore, there is a need for a tapered wear-resistant ceramic composite tube to maximize the composite tube length of the tuyere small sleeve inner wall, thereby greatly improving energy saving benefits.
Disclosure of utility model
In order to overcome the defects in the prior art, the embodiment of the utility model provides the energy-saving tuyere small sleeve with the embedded conical wear-resistant ceramic composite tube for the blast furnace, and the conical wear-resistant ceramic composite tube is arranged, so that the problem of water leakage of the inner wall of the small sleeve caused by flushing the inner wall of the tuyere small sleeve by coal dust flow is better solved, and the important function is to greatly improve the length of the inner wall ceramic composite tube and the energy-saving effect to the greatest extent, so that the problems in the background art are solved.
The energy-saving tuyere small sleeve for the blast furnace, which is embedded with the conical wear-resistant ceramic composite tube, comprises a tuyere small sleeve body, wherein the conical wear-resistant ceramic composite tube is arranged in the tuyere small sleeve body;
the conical wear-resistant ceramic composite tube comprises a metal outer wall layer, and a ceramic inner wall layer is arranged on the inner side of the metal outer wall layer.
In a preferred embodiment, the metal outer wall layer is attached to the inner wall of the tuyere small sleeve body.
The utility model has the technical effects and advantages that:
The utility model solves the problem of water leakage on the inner wall of the small sleeve caused by flushing the inner wall of the small sleeve of the tuyere by the coal powder flow through the conical wear-resistant ceramic composite tube, and has the important function of greatly improving the length of the inner wall ceramic composite tube and the energy-saving effect to the greatest extent.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic cross-sectional view of a metal outer wall layer according to the present utility model.
The air port small sleeve comprises a small air port sleeve body 1, a conical wear-resistant ceramic composite pipe 2, a metal outer wall layer 3 and a ceramic inner wall layer 4.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but 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.
As shown in the attached figures 1-2, the utility model provides an energy-saving tuyere small sleeve with an embedded conical wear-resistant ceramic composite tube for a blast furnace, which comprises a tuyere small sleeve body 1, wherein the conical wear-resistant ceramic composite tube 2 is arranged in the tuyere small sleeve body 1;
The conical wear-resistant ceramic composite tube 2 comprises a metal outer wall layer 3, and a ceramic inner wall layer 4 is arranged on the inner side of the metal outer wall layer 3.
The metal outer wall layer 3 is attached to the inner wall of the tuyere small sleeve body 1.
The implementation mode specifically comprises the following steps: when the utility model is used, the heat conductivity is far smaller than 1/72 of copper, especially the ceramic, so that the ceramic composite tube has a good energy-saving function, the longer the ceramic composite tube is, the larger the energy-saving benefit is, the conical wear-resistant ceramic composite tube 2 can effectively solve the problem, the ceramic composite tube length can be multiplied, in the limit case, the inner wall of the whole tuyere small sleeve body 1 can be almost covered, the energy-saving benefit is multiplied, the inner wall of the utility model is almost the conical wear-resistant ceramic composite tube 2, the heat taken away by cooling water can be furthest reduced, the water inlet and outlet temperature difference of the small sleeve is greatly reduced, the hot air temperature is also improved, the pulverized coal combustion is facilitated, the huge production consumption is reduced for a blast furnace, the considerable economic benefit is brought, the gun inserting depth of the pulverized coal spray gun of the blast furnace can be further moved backwards, the utility model further increases the distance of the coal powder combustion area and the coal powder combustion time, and further increases the coal powder combustion rate, the utility model is composed of a copper tuyere small sleeve body 1 and a conical wear-resistant ceramic composite tube 2, the conical wear-resistant ceramic composite tube 2 is designed and manufactured according to the size of the original tuyere small sleeve, the inner diameter of the wear-resistant ceramic composite tube is consistent with or is close to the inner diameter of the original tuyere small sleeve, thus the process parameters of the blast furnace are not greatly influenced, the outer wall of the conical wear-resistant ceramic composite tube 2 is finished according to the requirement of drawing size, the inner diameter of the tuyere small sleeve body 1 is ensured to be tightly matched, then the copper tuyere small sleeve is designed and manufactured according to the size of the conical wear-resistant ceramic composite tube 2, and then the small end of the wear-resistant ceramic composite tube is inserted into the big end of the tuyere small sleeve until the two are tightly matched, therefore, the utility model not only solves the problem of water leakage on the inner wall of the small sleeve caused by flushing the inner wall of the small sleeve of the tuyere by the coal powder flow, but also has the important function of greatly improving the length of the ceramic composite tube on the inner wall and improving the energy-saving effect to the greatest extent.
The working principle of the utility model is as follows:
referring to the attached drawings 1-2 of the specification, when the utility model is used, the conical wear-resistant ceramic composite pipe 2 is arranged, so that the utility model not only better solves the problem of water leakage on the inner wall of the small sleeve caused by flushing the inner wall of the small sleeve by coal dust flow, but also has the more important function of greatly improving the length of the ceramic composite pipe on the inner wall and improving the energy-saving effect to the greatest extent.
In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, where "up," "down," "left," "right," etc. are merely used to indicate relative positional relationships, and when the absolute position of an object to be described changes, the relative positional relationships may change;
In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;
Finally, the foregoing description of the preferred embodiment of the utility model is provided for the purpose of illustration only, and is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423163555.6U CN223509897U (en) | 2024-12-20 | 2024-12-20 | Energy-saving tuyere small sleeve with embedded conical wear-resistant ceramic composite tube for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423163555.6U CN223509897U (en) | 2024-12-20 | 2024-12-20 | Energy-saving tuyere small sleeve with embedded conical wear-resistant ceramic composite tube for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223509897U true CN223509897U (en) | 2025-11-04 |
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ID=97509211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423163555.6U Active CN223509897U (en) | 2024-12-20 | 2024-12-20 | Energy-saving tuyere small sleeve with embedded conical wear-resistant ceramic composite tube for blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223509897U (en) |
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2024
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