CN219239682U - Brick cooling wall is inlayed to shearing structure - Google Patents
Brick cooling wall is inlayed to shearing structure Download PDFInfo
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- CN219239682U CN219239682U CN202223323499.9U CN202223323499U CN219239682U CN 219239682 U CN219239682 U CN 219239682U CN 202223323499 U CN202223323499 U CN 202223323499U CN 219239682 U CN219239682 U CN 219239682U
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- cooling wall
- refractory material
- material layer
- embedded groove
- inlaid
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Abstract
The utility model provides a shear-resistant structure brick-inlaid cooling wall, which comprises a cooling wall and a refractory material layer, wherein the hot surface of the cooling wall is provided with a plurality of inlaid grooves for inlaid fixing of the refractory material layer, the width H of the top opening of each inlaid groove is larger than the width H of the root opening of each inlaid groove, and the refractory material layer is provided with a joggle joint part matched with the inlaid groove of the cooling wall. According to the utility model, the sectional dimension of the embedded groove facing the inner heat surface of the furnace is designed to be larger than the sectional dimension of the root of the embedded groove, and the root dimension of the joggle joint of the refractory material layer matched with the embedded groove is larger than the top dimension of the joggle joint, so that the shearing stress of the interface between the refractory material layer and the joggle joint is reduced, the shearing resistance of the cooling wall embedded refractory material is improved, the cooling wall is protected, and the cooling wall is prevented from being directly worn, so that the service life of the cooling wall is prolonged.
Description
Technical Field
The utility model belongs to the technical field of metallurgy, and particularly relates to a shear structure brick-inlaid cooling wall.
Background
The cooling wall is an important cooling device of the blast furnace, and the brick-inlaid cooling wall is generally designed into a structure with dovetail grooves so as to be inlaid with refractory materials, wherein the refractory materials are important protective media of the cooling wall. The refractory material can isolate the cooling wall from high-temperature high-speed airflow and furnace burden in the furnace, and prevent the cooling wall from being directly exposed to a high-temperature environment and worn; therefore, if the refractory material falls off, the service life of the cooling wall is seriously affected, and the safety production of the blast furnace is further affected.
As shown in fig. 1, the refractory material and the cooling wall are joggled by adopting a dovetail structure, the structure is very firm in a cold state, but in the working state in a blast furnace, the embedded refractory material can be subjected to huge shearing force generated by gas flow scouring and furnace charge abrasion in the furnace, the part with the smallest sectional area of the refractory material, which is used as a part with the smallest sectional area of the refractory material, of the dovetail groove of the cooling wall can be the weakest position of the embedded refractory material, and the fracture of the refractory material at the part damages the dovetail structure, so that the refractory material falls off.
Disclosure of Invention
The utility model aims to provide a shear structure brick-inlaid cooling wall which at least can solve part of defects in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a shear structure mosaic brick stave, includes stave and refractory material layer, the hot face of stave has a plurality of mosaic grooves that are used for inlaying fixed refractory material layer, the open width H in top of mosaic groove is greater than the root open width H of mosaic groove, the refractory material layer has the joggle portion with the mosaic groove matched with of stave.
Further, the central line of the embedded groove is obliquely arranged, the included angle between the central line of the embedded groove and the ascending direction line of the airflow in the furnace is smaller than 90 degrees, and the included angle between the central line of the embedded groove and the descending direction line of the furnace burden in the furnace is larger than 90 degrees.
Further, the cross section of the joggle part of the refractory material layer is the same as the cross section of the inlaid groove of the cooling wall.
Further, the cross section of the embedded groove is trapezoid, and the narrower end of the trapezoid is the root of the embedded groove.
Further, the embedded grooves extend along the circumferential direction of the cooling wall, and the plurality of embedded grooves are arranged at equal intervals along the height direction of the cooling wall.
Further, the cooling wall is a cast iron cooling wall, a cast steel cooling wall or a copper cooling wall.
Further, the refractory material layer is clay brick, high alumina brick, aluminum carbon brick, silicon nitride combined silicon carbide brick or castable.
Compared with the prior art, the utility model has the beneficial effects that:
according to the mosaic brick cooling wall with the shearing resistant structure, the sectional size of the mosaic groove facing the inner hot surface of the furnace is larger than the sectional size of the root of the mosaic groove, and the root size of the joggle joint part of the refractory material layer matched with the mosaic groove is larger than the top size of the joggle joint part, so that the shearing stress of the interface between the refractory material layer and the joggle joint part is reduced, the shearing capacity of the mosaic refractory material of the cooling wall is improved, the cooling wall is protected, and the cooling wall is prevented from being directly worn, so that the service life of the cooling wall is prolonged.
The present utility model will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a prior art connection structure of a stave and a refractory material;
FIG. 2 is a schematic view of a shear structure brick-lined stave of the present utility model;
fig. 3 is an enlarged view of a portion of a shear structure tile cooling wall of the present utility model.
Reference numerals illustrate: 1. a cooling wall; 2. embedding grooves; 3. a refractory material layer; 4. a dovetail joint; 5. inlay the groove central line.
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.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or by an abutting connection or integrally connected; the specific meaning of the above terms in the present utility model will be understood in detail by those skilled in the art; in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality", "a number" or "a plurality" is two or more.
As shown in fig. 2 and 3, the present embodiment provides a shear structure brick-inlaid cooling wall, which comprises a cooling wall 1 and a refractory layer 3, wherein a hot surface of the cooling wall 1 is provided with a plurality of inlaid grooves 2 for inlaid fixing the refractory layer 3, a top opening width H of the inlaid grooves 2 is larger than a root opening width H of the inlaid grooves 2, and the refractory layer 3 is provided with joggles 4 matched with the inlaid grooves 2 of the cooling wall 1.
In this embodiment, the cooling wall 1 and the refractory material layer 3 are joggled through the embedded groove 2 and the joggle portion 4, meanwhile, the top opening width H of the embedded groove 2 is designed to be larger than the root opening width H of the embedded groove 2, the joggle portion 4 of the refractory material layer 3 is designed to be joggled in order to match with the embedded groove 2, the cross section shape of the joggle portion 4 is designed to be the same as the cross section shape of the embedded groove 2 of the cooling wall 1, and the root size of the joggle portion 4 is larger than the top size of the joggle portion 4, so that the shearing stress of the interface between the refractory material layer 3 and the joggle portion 4 is reduced, the shearing capability of the refractory material embedded in the cooling wall is improved, the effects of protecting the cooling wall 1 and avoiding the cooling wall 1 from being worn directly are achieved, and the service life of the cooling wall 1 is prolonged.
Specifically, the stave 1 may be, but not limited to, a cast iron stave, a cast steel stave, or a copper stave, the damascene grooves 2 on the stave 1 are arranged to extend in the circumferential direction of the stave 1, and the plurality of damascene grooves 2 are arranged at equal intervals in the height direction of the stave 1. The refractory material layer 3 may be, but is not limited to, clay brick, high alumina brick, alumina carbon brick, silicon nitride bonded silicon carbide brick or castable; because the top opening width H of the embedded groove 2 on the cooling wall 1 is larger than the root opening width H of the embedded groove 2, when the joggle joint part 4 of the refractory material layer 3 is installed in the embedded groove 2, the joggle joint part 4 can be directly inserted into the root of the embedded groove 2 from the top of the embedded groove 2, and compared with the prior art, the installation and construction of the joggle joint made of refractory material can only be installed from the side surface of the embedded groove 2.
Alternatively, the shape of the inlaid trough 2 is designed to be trapezoid, and the narrower end of the trapezoid is the root of the inlaid trough 2.
In a further optimized embodiment, the inlaid trough center line 5 of the inlaid trough 2 is obliquely arranged, the included angle between the inlaid trough center line 5 and the direction line of the rising of the furnace air flow is smaller than 90 degrees, and meanwhile, the included angle between the inlaid trough center line 5 and the direction line of the falling of the furnace burden is larger than 90 degrees.
In summary, according to the brick-inlaid cooling wall with the shearing-resistant structure, the joggle structure of the cooling wall and the refractory material layer is optimally designed, so that the shearing stress of the refractory material layer at the inlaid groove of the cooling wall is reduced, the shearing resistance of the refractory material inlaid in the cooling wall is improved, the cooling wall is protected, the cooling wall is prevented from being directly worn, and the service life of the cooling wall is prolonged.
The foregoing examples are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.
Claims (6)
1. The utility model provides a shear structure mosaic brick cooling wall which characterized in that: the cooling wall comprises a cooling wall and a refractory material layer, wherein the hot surface of the cooling wall is provided with a plurality of embedded grooves for embedding and fixing the refractory material layer, the width H of the top opening of each embedded groove is larger than the width H of the root opening of each embedded groove, and the refractory material layer is provided with a joggle part matched with the embedded groove of the cooling wall; the central line of the embedded groove is obliquely arranged, the included angle between the central line of the embedded groove and the ascending direction line of the airflow in the furnace is smaller than 90 degrees, and the included angle between the central line of the embedded groove and the descending direction line of the furnace burden in the furnace is larger than 90 degrees.
2. The shear structure tile cooling wall of claim 1, wherein: the section shape of the joggle joint part of the refractory material layer is the same as the section shape of the inlaid groove of the cooling wall.
3. The shear structure tile cooling wall of claim 1, wherein: the cross section of the embedded groove is trapezoid, and the narrower end of the trapezoid is the root of the embedded groove.
4. The shear structure tile cooling wall of claim 1, wherein: the embedded grooves extend along the circumferential direction of the cooling wall, and the plurality of embedded grooves are arranged at equal intervals along the height direction of the cooling wall.
5. The shear structure tile cooling wall of claim 1, wherein: the cooling wall is cast iron cooling wall, cast steel cooling wall or copper cooling wall.
6. The shear structure tile cooling wall of claim 1, wherein: the refractory material layer is clay brick, high alumina brick, aluminum carbon brick, silicon nitride combined silicon carbide brick or castable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223323499.9U CN219239682U (en) | 2022-12-12 | 2022-12-12 | Brick cooling wall is inlayed to shearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223323499.9U CN219239682U (en) | 2022-12-12 | 2022-12-12 | Brick cooling wall is inlayed to shearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239682U true CN219239682U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223323499.9U Active CN219239682U (en) | 2022-12-12 | 2022-12-12 | Brick cooling wall is inlayed to shearing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN219239682U (en) |
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- 2022-12-12 CN CN202223323499.9U patent/CN219239682U/en active Active
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