CN211199262U - Cooling structure at tuyere part of blast furnace - Google Patents
Cooling structure at tuyere part of blast furnace Download PDFInfo
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- CN211199262U CN211199262U CN201922346330.7U CN201922346330U CN211199262U CN 211199262 U CN211199262 U CN 211199262U CN 201922346330 U CN201922346330 U CN 201922346330U CN 211199262 U CN211199262 U CN 211199262U
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Abstract
The utility model provides a cooling structure at the tuyere part of a blast furnace, which comprises a tuyere large sleeve, a tuyere middle sleeve and a tuyere small sleeve which are arranged at the tuyere part and are sequentially connected towards the direction in the furnace, and a tuyere area refractory layer arranged around the tuyere part; the upper and lower parts of the tuyere position are symmetrically provided with an upper layer cooling plate and a lower layer cooling plate, the upper layer cooling plate and the lower layer cooling plate both extend into the furnace to the tuyere region refractory material layer, and the upper layer cooling plate, the lower layer cooling plate and the tuyere middle sleeve at the tuyere position are arranged in an array mode. This cooling structure all adopts the cooling plate level to insert the stove mode in the upper and lower part at wind gap position, and upper and lower floor's cooling plate and wind gap well cover form array cooling structure, and the cooling depth is big, and cooling strength is high, and to wind gap well cover and wind gap well cover homoenergetic play the cooling protection effect, more do benefit to and hang the sediment, and the cinder strap is difficult for droing, has effectively guaranteed the safety in wind gap region, also is favorable to wind gap region to form stable overall structure simultaneously, keeps reasonable production stove type.
Description
Technical Field
The utility model belongs to the technical field of metallurgical foundry industry, concretely relates to cooling structure at blast furnace wind gap position.
Background
At present, the tuyere part of the blast furnace adopts the surface cooling formed by arranging the special-shaped tuyere cooling wall 4 along the circumferential direction of the blast furnace, as shown in figure 1, the structure has the advantage of uniform cooling, but the cooling depth is not enough, only the tuyere large sleeve 2 can be protected, when the refractory layer 5 of the tuyere area at the front end of the tuyere cooling wall 4 is eroded, the tuyere medium sleeve 3 and the tuyere cooling wall 4 can be subjected to long-term scouring of high-temperature gas flow and liquid slag iron in a tuyere convolution area, particularly, the area between the tuyere medium sleeve 3 cannot form slag skin due to no cooling equipment, a large cavity can be formed, the high-temperature gas flow and the liquid slag iron form vortex in the cavity to repeatedly scour the tuyere medium sleeve 3 and the tuyere cooling wall 4, so that a large amount of tuyere equipment is burnt out, even the tuyere cooling wall is burnt out during production, and the safety of the blast furnace is threatened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problem that the tuyere part of the existing blast furnace cannot be cooled by a cooling wall structure so as to cause a large amount of tuyere equipment to be burnt out.
Therefore, the utility model provides a cooling structure at the tuyere part of the blast furnace, which comprises a tuyere large sleeve, a tuyere middle sleeve and a tuyere small sleeve which are arranged at the tuyere part and are sequentially connected towards the direction in the furnace, and a tuyere area material-resistant layer arranged around the tuyere part; the upper and lower parts of the tuyere position are symmetrically provided with an upper layer cooling plate and a lower layer cooling plate, the upper layer cooling plate and the lower layer cooling plate both extend into the furnace to the tuyere region refractory material layer, and the upper layer cooling plate, the lower layer cooling plate and the tuyere middle sleeve at the tuyere position are arranged in an array mode.
Furthermore, the upper layer cooling plate and the lower layer cooling plate are at least two layers, the adjacent two layers of the upper layer cooling plate are distributed in a staggered mode, and the adjacent two layers of the lower layer cooling plate are distributed in a staggered mode.
Furthermore, the upper layer cooling plate and the lower layer cooling plate extend into the furnace to the depth corresponding to the tuyere medium sleeve.
Furthermore, the upper layer cooling plate and the lower layer cooling plate are fixed on the furnace shell through welding.
Furthermore, the upper layer cooling plate and the lower layer cooling plate are made of copper or steel.
Furthermore, the refractory material layer in the tuyere area is formed by building shaped bricks or is formed by pouring or ramming an indefinite material.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides a mode in the cooling plate level insertion stove is all adopted to the cooling structure at the upper and lower part at wind gap position at this kind of blast furnace wind gap position, and the cooling depth is big, and cooling strength is high, to wind gap overcoat and wind gap well cover homoenergetic play the cooling protection effect, has effectively guaranteed the safety in wind gap region, and the cooling plate is easily changed under the condition of damage moreover, saves the maintenance cost.
(2) The utility model provides a cover formation array cooling structure in stretching into the upper and lower floor's cooling plate in the stove and the wind gap among the cooling structure at this kind of blast furnace wind gap position more does benefit to and hangs the sediment, and the cinder is difficult for droing, has further guaranteed the safety in wind gap region, also is favorable to the stable overall structure of wind gap region formation simultaneously, keeps reasonable production stove type.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a cooling structure of a tuyere portion of a conventional blast furnace;
FIG. 2 is a schematic view of a cooling structure of a tuyere portion of a blast furnace according to the present invention;
fig. 3 is a schematic sectional view taken along line a-a in fig. 2.
Description of reference numerals: 1. a furnace shell; 2. a tuyere large sleeve; 3. a tuyere medium sleeve; 4. a tuyere cooling wall; 5. a refractory layer in the tuyere region; 6. a tuyere small sleeve; 7. an upper cooling plate; 8. and a lower cooling plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to 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 those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 2 and fig. 3, the present embodiment provides a cooling structure for a tuyere region of a blast furnace, which includes a tuyere large sleeve 2, a tuyere middle sleeve 3, and a tuyere small sleeve 6, which are arranged at the tuyere region and sequentially connected toward the furnace interior, and a refractory layer 5 arranged at the tuyere region around the tuyere region; the upper and lower parts of the tuyere part are symmetrically provided with an upper layer cooling plate 7 and a lower layer cooling plate 8, so that the tuyere part is uniformly cooled, and the upper layer cooling plate 7 and the lower layer cooling plate 8 both extend into the furnace into the refractory layer 5 in the tuyere area, the cooling depth is large, the cooling protection effect can be simultaneously achieved on the tuyere large sleeve 2 and the tuyere medium sleeve 3, the problem that only the tuyere large sleeve 2 can be cooled by the tuyere cooling wall 4 in the prior art is effectively solved, and the area between the tuyere middle sleeves 3 can not form slag crust because of no cooling equipment, in the embodiment, the upper layer cooling plate 7, the lower layer cooling plate 8 and the tuyere middle sleeve 3 at the tuyere part are arranged in an array, so that slag is easier to hang, the slag crust is not easy to fall off, the safety of the tuyere area is further ensured, meanwhile, the stable integral structure of the tuyere area is formed, and the reasonable production furnace type is kept.
Specifically, the outer parts of the upper-layer cooling plate 7 and the lower-layer cooling plate 8 are fixed on the furnace shell 1 in a welding mode, the inner parts of the upper-layer cooling plate 7 and the lower-layer cooling plate 8 are horizontally inserted into the furnace, the mounting structure is stable, and the upper-layer cooling plate 7 and the lower-layer cooling plate 8 can be conveniently replaced under the damaged condition; the upper layer cooling plate 7 and the lower layer cooling plate 8 are made of copper or steel, and of course, can be made of other heat conduction materials.
The refractory material layer 5 in the tuyere area is formed by building shaped bricks or pouring or ramming an indefinite material, so that a high-heat-conductivity refractory material is filled between the cooling plates, and the service life of the cooling plates is ensured.
As one embodiment, the upper cooling plate 7 and the lower cooling plate 8 have at least two layers, the number of layers of the upper cooling plate 7 and the lower cooling plate 8 is the same, the upper cooling plate 7 and the lower cooling plate 8 are symmetrical with respect to the center line of the tuyere portion, the two adjacent layers of the upper cooling plate 7 are distributed in a staggered manner, the two adjacent layers of the lower cooling plate 8 are distributed in a staggered manner, the number of the cooling plates is saved through the staggered arrangement, and the cooling effect of the cooling plates on the tuyere portion is not affected. In this embodiment, as shown in fig. 2, the upper cooling plate 7 and the lower cooling plate 8 are both provided with two layers, the upper cooling plate 7 on the outer layer is arranged right above the air port, and the upper cooling plate 7 on the inner layer is arranged between two adjacent air port positions, so that the two layers of the upper cooling plate 7 are distributed in a staggered manner, thereby ensuring the cooling effect on the upper part of the air port position, and similarly, the two layers of the lower cooling plate 8 are distributed in the same manner as the upper cooling plate 7, and the two layers of the lower cooling plate 8 are symmetrically arranged with the two layers of the upper cooling plate 7, thereby ensuring the uniform cooling of the upper part and the lower part of the air port position; in addition, the upper-layer cooling plate 7 and the lower-layer cooling plate 8 extend into the furnace, and form an array type cooling structure with the tuyere middle sleeve 3 corresponding to the tuyere part in the furnace, so that compared with a cooling mode of the tuyere cooling wall 4, slag is more easily attached, and the slag crust is not easy to fall off.
In order to better achieve the cooling protection effect on the tuyere middle sleeve 3, the upper-layer cooling plate 7 and the lower-layer cooling plate 8 can be optimally extended into the furnace to the depth corresponding to the tuyere middle sleeve 3, so that the insertion depth of the upper-layer cooling plate 7 and the lower-layer cooling plate 8 can cover the depth of the tuyere middle sleeve 3, the upper-layer cooling plate 7 and the lower-layer cooling plate 8 can cool the whole tuyere middle sleeve 3, the cooling depth is large, the cooling strength is high, and the slag hanging effect is further improved.
To sum up, the utility model provides a cooling structure at blast furnace wind gap position all adopts the mode that the cooling plate level inserted in the stove in the upper and lower part at wind gap position, and upper and lower floor's cooling plate and wind gap in the cover form array cooling structure, the cooling depth is big, cooling strength is high, to wind gap big cover and wind gap in the cover homoenergetic play the cooling protecting effect, more do benefit to and hang the sediment, and the cinder is difficult for droing, effectively guaranteed the safety in wind gap region, also be favorable to the stable overall structure of wind gap region formation simultaneously, keep reasonable production stove type.
The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (6)
1. A cooling structure of a blast furnace tuyere portion is characterized in that: the tuyere device comprises a tuyere large sleeve, a tuyere middle sleeve and a tuyere small sleeve which are arranged at a tuyere position and sequentially connected towards the direction in a furnace, and a tuyere area refractory layer arranged around the tuyere position; the upper and lower parts of the tuyere position are symmetrically provided with an upper layer cooling plate and a lower layer cooling plate, the upper layer cooling plate and the lower layer cooling plate both extend into the furnace to the tuyere region refractory material layer, and the upper layer cooling plate, the lower layer cooling plate and the tuyere middle sleeve at the tuyere position are arranged in an array mode.
2. The cooling structure of a tuyere portion of a blast furnace as set forth in claim 1, wherein: the upper layer cooling plate and the lower layer cooling plate are at least two layers, the adjacent two layers of the upper layer cooling plate are distributed in a staggered mode, and the adjacent two layers of the lower layer cooling plate are distributed in a staggered mode.
3. The cooling structure of a tuyere portion of a blast furnace as set forth in claim 1, wherein: and the upper layer cooling plate and the lower layer cooling plate extend into the furnace to the depth corresponding to the tuyere medium sleeve.
4. The cooling structure of a tuyere portion of a blast furnace as set forth in claim 1, wherein: and the upper-layer cooling plate and the lower-layer cooling plate are fixed on the furnace shell through welding.
5. The cooling structure of a tuyere portion of a blast furnace as set forth in claim 1, wherein: the upper layer cooling plate and the lower layer cooling plate are made of copper or steel.
6. The cooling structure of a tuyere portion of a blast furnace as set forth in claim 1, wherein: the refractory material layer in the tuyere area is formed by building shaped bricks or pouring or ramming an indefinite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346330.7U CN211199262U (en) | 2019-12-24 | 2019-12-24 | Cooling structure at tuyere part of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346330.7U CN211199262U (en) | 2019-12-24 | 2019-12-24 | Cooling structure at tuyere part of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211199262U true CN211199262U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922346330.7U Active CN211199262U (en) | 2019-12-24 | 2019-12-24 | Cooling structure at tuyere part of blast furnace |
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| Country | Link |
|---|---|
| CN (1) | CN211199262U (en) |
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- 2019-12-24 CN CN201922346330.7U patent/CN211199262U/en active Active
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