CN215975888U - Novel vault structure of hot blast stove - Google Patents

Novel vault structure of hot blast stove Download PDF

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Publication number
CN215975888U
CN215975888U CN202023290296.5U CN202023290296U CN215975888U CN 215975888 U CN215975888 U CN 215975888U CN 202023290296 U CN202023290296 U CN 202023290296U CN 215975888 U CN215975888 U CN 215975888U
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China
Prior art keywords
hot blast
blast stove
layer
vault
fiber layer
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Active
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CN202023290296.5U
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Chinese (zh)
Inventor
孔令涛
樊效乐
李建涛
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Zhengzhou Dongyu New Material Technology Co ltd
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Zhengzhou Dongyu New Material Technology Co ltd
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Abstract

The utility model discloses a novel vault structure of a hot blast stove, which comprises a working lining, wherein the working lining is outwards and sequentially provided with a first fiber layer, a first light heat-insulating brick layer, a second fiber layer and a spraying layer. Meanwhile, the problem of undersized reserved expansion joints is solved by adopting a first fiber layer structure outside the silica bricks, and the upper and lower surfaces of the silica bricks are both horizontal structures when the silica bricks are designed, so that the problems of size control and construction safety during building can be well solved. The utility model solves the problems of reddening of the vault part of the hot blast stove, high surface temperature, air channeling and short service life, makes great contribution to solving the problems of easy construction, high air temperature and long service life of the hot blast stove, and has very important application prospect and economic benefit.

Description

Novel vault structure of hot blast stove
Technical Field
The utility model relates to the technical field of hot blast stoves, in particular to a novel vault structure of a hot blast stove.
Background
Along with the strengthening of blast furnace smelting, the high wind temperature and high wind pressure level are improved, and the problems of reddening of the vault part of the hot blast stove, high surface temperature and short service life commonly exist in domestic blast furnaces at present. The air temperature provided by the existing hot blast stove is generally 1000-1200 ℃, the improvement of the hot air temperature is an important means for reducing the coke ratio and improving the coal injection ratio and the yield, and most domestic steel mills can not improve the air supply temperature due to the fact that the vault of the hot blast stove glows at present, serious heat energy loss and production yield reduction are caused, and even the vicious consequence of burning through the steel structure of the vault of the hot blast stove is caused.
The vault part of the hot-blast stove has high temperature, the working lining is mostly built by silica bricks, the silica bricks in the original design adopt two layers of light insulating bricks, the outside of the light insulating bricks is a fiber layer, and the outside of the fiber layer is a spraying layer. Because the volume of the silica brick is changed greatly under the conditions of normal temperature and high temperature, the problem of silica brick expansion is solved by adopting a reserved expansion joint structure in the design process. And the design of brick type at the vault part of the original hot blast stove is mostly of an inclined structure, and the masonry size and the construction safety are difficult to control when the masonry is carried out due to the stress of the inclined structure.
The present invention provides a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the present invention aims to provide a hot blast stove to overcome the defects of the prior art.
The technical scheme for solving the problem is as follows: the novel vault structure of the hot blast stove comprises a working lining, wherein the working lining is outwards provided with a first fiber layer, a first light insulating brick layer, a second fiber layer and a spraying layer in sequence.
Preferably, the working lining is a silica brick.
Preferably, the silica brick is of an irregular cuboid structure, the top of the silica brick is provided with a bulge, and the corresponding position of the bottom of the silica brick is provided with a groove with the same size as the bulge.
Preferably, the upper surface and the lower surface of the silica brick are both in a horizontal structure.
Through the technical scheme, the utility model has the beneficial effects that: the utility model solves the problems of reddening of the vault part of the hot blast stove, high surface temperature, air channeling and short service life, makes great contribution to solving the problems of easy construction, high air temperature and long service life of the hot blast stove, and has very important application prospect and economic benefit.
Drawings
Fig. 1 is a front sectional view of the present invention.
FIG. 2 is a schematic structural diagram of the silica brick of the present invention.
In the figure: 1-working lining, 2-first fiber layer, 3-first light insulating brick layer, 4-second light insulating brick layer, 5-second fiber layer, 6-spraying layer, 7-bulge and 8-groove.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in figure 1, the novel vault structure of the hot blast stove comprises a working lining 1, wherein the working lining 1 is outwards provided with a first fiber layer 2, a first light insulating brick layer 3, a second light insulating brick layer 4, a second fiber layer 5 and a spraying layer 6 in sequence.
Wherein, working lining 1 adopts the silica brick, as shown in fig. 2, the silica brick is irregular cuboid structure, the silica brick top is provided with arch 7, and bottom corresponds position department and is provided with the recess 8 unanimous with arch 7 size. When the expansion joint is specifically set, the silica bricks between the upper layer and the lower layer are interlocked through clamping, and the problem that the expansion joint is reserved too much is solved. Meanwhile, the problem of undersized reserved expansion joint is solved by adopting a first fiber layer structure outside the silica brick. According to the method, the upper surface and the lower surface of the silica brick are both of horizontal structures when the silica brick is designed, and the problems of size control and construction safety during masonry can be well solved.
In conclusion, the utility model solves the problems of reddening of the vault part of the hot blast stove, high surface temperature, air channeling and short service life, makes great contribution to solving the problems of easy construction, high air temperature and long service life of the hot blast stove, and has very important application prospect and economic benefit.
While the utility model has been described in further detail with reference to specific embodiments thereof, it is not intended that the utility model be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.

Claims (4)

1. The novel vault structure of the hot blast stove comprises a working lining and is characterized in that: the working lining is outwards provided with a first fiber layer, a first light insulating brick layer, a second fiber layer and a spraying layer in sequence.
2. The novel dome structure of a hot blast stove according to claim 1, characterized in that: the working lining is a silica brick.
3. The novel dome structure of a hot blast stove according to claim 2, characterized in that: the silica brick is irregular cuboid structure, the silica brick top is provided with the arch, and the bottom corresponds the position department and is provided with the recess unanimous with protruding size.
4. The novel dome structure of a hot blast stove according to claim 3, characterized in that: the upper surface and the lower surface of the silica brick are both of horizontal structures.
CN202023290296.5U 2020-12-31 2020-12-31 Novel vault structure of hot blast stove Active CN215975888U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023290296.5U CN215975888U (en) 2020-12-31 2020-12-31 Novel vault structure of hot blast stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023290296.5U CN215975888U (en) 2020-12-31 2020-12-31 Novel vault structure of hot blast stove

Publications (1)

Publication Number Publication Date
CN215975888U true CN215975888U (en) 2022-03-08

Family

ID=80567215

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023290296.5U Active CN215975888U (en) 2020-12-31 2020-12-31 Novel vault structure of hot blast stove

Country Status (1)

Country Link
CN (1) CN215975888U (en)

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