CN216550506U - Natural air cooling main channel of blast furnace casting house - Google Patents
Natural air cooling main channel of blast furnace casting house Download PDFInfo
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- CN216550506U CN216550506U CN202122554161.3U CN202122554161U CN216550506U CN 216550506 U CN216550506 U CN 216550506U CN 202122554161 U CN202122554161 U CN 202122554161U CN 216550506 U CN216550506 U CN 216550506U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model discloses a natural air cooling main ditch of a blast furnace cast house, which comprises a fire-resistant main ditch, a main ditch bottom plate component arranged below the fire-resistant main ditch, a main ditch side plate component arranged on the side surface of the fire-resistant main ditch, a concrete groove bottom plate used for installing the main ditch bottom plate component and a concrete groove side plate; be formed with the cooling duct between main ditch curb plate subassembly and the concrete slot curb plate, offer the ventilation hole that is used for communicateing the cooling duct on the concrete slot curb plate, this technical scheme's the natural forced air cooling main ditch of cast house, the cooling duct communicates with the external world through the trompil of concrete slot curb plate, the hot-air in the concrete slot can carry out the natural circulation with external cold air, thereby reduce the temperature of main ditch steel casing, main ditch working layer and concrete slot, the life of extension main ditch working layer and main ditch steel casing, reduce project construction investment and production running cost.
Description
Technical Field
The utility model relates to the technical field of metallurgical industry, in particular to a natural air cooling main channel of a blast furnace casting house.
Background
The main ditch is an important channel for discharging and separating high-temperature iron slag on a blast furnace casting field, the domestic typical main ditch can be divided into a heat insulation type main ditch and a forced cooling main ditch according to different cooling modes, and the two main ditches can meet the daily requirements of blast furnace production, but also have various defects respectively.
The heat insulation type main channel mainly considers that the high temperature of molten iron is limited to be transmitted to the concrete channel, damage to the concrete channel is avoided, but a main channel working layer and a main channel steel shell are in a high-temperature state for a long time, and the service life of the main channel working layer and the main channel steel shell is shortened; the forced cooling main ditch mainly considers that the temperature of the main ditch working layer and the main ditch steel shell is reduced so as to prolong the service life of the main ditch working layer and the main ditch steel shell, but the fan needs to be utilized to continuously cool the main ditch steel shell, and the project construction investment and the production operation cost are increased.
Therefore, in order to solve the above problems, a natural air-cooling main channel for a blast furnace casting house is required to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, according to the natural air-cooling main channel of the cast house in the technical scheme, the cooling air duct is communicated with the outside through the opening of the side plate of the concrete groove, and hot air in the concrete groove can be naturally circulated with cold air in the outside, so that the temperatures of the main channel steel shell, the main channel working layer and the concrete groove are reduced, the service lives of the main channel working layer and the main channel steel shell are prolonged, and project construction investment and production operation cost are reduced.
A natural air cooling main channel of a blast furnace casting house comprises a fire-resistant main channel, a main channel bottom plate component arranged below the fire-resistant main channel, a main channel side plate component arranged on the side surface of the fire-resistant main channel, a concrete groove bottom plate used for mounting the main channel bottom plate component and a concrete groove side plate; a cooling air channel is formed between the main groove side plate assembly and the concrete groove side plate, and a ventilation hole used for communicating the cooling air channel is formed in the concrete groove side plate.
Further, the main trench bottom plate assembly comprises a bottom rib plate, a bottom sealing plate and a supporting beam arranged between the concrete trench bottom plate and the bottom sealing plate, wherein the bottom rib plate and the bottom sealing plate are sequentially arranged from top to bottom; the supporting beams are a plurality of and a plurality of supporting beams are evenly distributed on the concrete trench bottom plate.
Furthermore, the main trench side plate assembly comprises a side wall sealing plate and a side wall rib plate which are sequentially arranged from inside to outside, and the cooling air duct is formed between the side wall rib plate and the concrete trench side plate.
Furthermore, refractory material layers are uniformly arranged between the bottom sealing plate and the bottom plate of the concrete groove and between the cooling air duct and the side plate of the concrete groove.
Furthermore, the air guide holes transversely penetrate through the refractory material layer and are communicated with the cooling air duct, and the air guide holes are uniformly distributed on the side plate of the concrete groove at the same horizontal height at equal intervals.
Furthermore, an air duct cover plate rib plate and an air duct cover plate panel are arranged above the cooling air duct, and the air duct cover plate panel is arranged above the air duct cover plate rib plate.
Further, a protective material layer is arranged on the air duct cover plate panel.
Further, the end part of the side wall sealing plate is provided with a top sealing plate along the transverse direction.
The utility model has the beneficial effects that: according to the technical scheme, the main tapping house is naturally air-cooled, the cooling air channel is communicated with the outside through the opening of the side plate of the concrete groove, and hot air in the concrete groove can be naturally circulated with the outside cold air, so that the temperature of the main tapping house steel shell, the main tapping house working layer and the concrete groove is reduced, the service lives of the main tapping house working layer and the main tapping house steel shell are prolonged, and the project construction investment and the production running cost are reduced;
the supporting beam can be fixed by the refractory material between the bottom sealing plate and the bottom plate of the concrete ditch, so that the temperature of the concrete ditch is reduced, and the concrete ditch is prevented from being damaged after molten iron overflows from the main ditch;
the arrangement of the air duct cover plate can prevent various production materials on the cast house from falling into the concrete groove and also provides convenience for operators in the cast house to replace equipment inside and outside the main channel steel shell through the cooling air duct;
the air duct cover plate protective material layer can prevent molten iron from damaging the air duct cover plate, a main duct steel shell, a concrete groove or other equipment and buildings after overflowing from the main duct.
Drawings
The utility model is further described below with reference to the following figures and examples:
FIG. 1 is a schematic transverse cross-sectional view of the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of the present invention.
Detailed Description
FIG. 1 is a schematic transverse cross-sectional view of the present invention; FIG. 2 is a schematic longitudinal cross-sectional view of the present invention; as shown in the figures, the natural air-cooled main channel of the blast furnace cast house of the utility model comprises a fire-resistant main channel 1, a main channel bottom plate component arranged below the fire-resistant main channel, a main channel side plate component arranged on the side surface (namely the right side surface in figure 1) of the fire-resistant main channel 1, a concrete channel bottom plate 41 used for installing the main channel bottom plate component and a concrete channel side plate 42; a cooling air duct 6 is formed between the main trench side plate assembly and the concrete trench side plate, and a vent hole 43 (the central line of the main trench is A) for communicating the cooling air duct is formed in the concrete trench side plate. This technical scheme's natural forced air cooling main ditch in cast house, cooling air duct communicate with the external world through the trompil of concrete slot curb plate, and the hot-air in the concrete slot can carry out the nature circulation with external cold air to reduce the temperature of main ditch steel casing, main ditch working layer and concrete slot, the life of extension main ditch working layer and main ditch steel casing reduces project construction investment and production running cost.
In this embodiment, the main trench bottom plate assembly includes a bottom rib plate 21, a bottom closing plate 22 and a support beam 3 disposed between the concrete trench bottom plate 41 and the bottom closing plate 22, which are sequentially arranged from top to bottom; the supporting beams 3 are multiple and the supporting beams 3 are evenly distributed on the concrete trench bottom plate 41. The fire-resistant main ditch 1 is arranged on the bottom rib plate 21, and a plurality of support beams 3 are arranged between the bottom sealing plate 22 and the concrete groove bottom plate 41 along the longitudinal direction, so that the bottom sealing plate 22 is supported.
In this embodiment, the main trench side plate assembly includes a side wall sealing plate 23 and a side wall rib plate 24 that are sequentially arranged from inside to outside (i.e., from left to right in fig. 1), and the cooling air duct 6 is formed between the side wall rib plate 24 and the concrete trench side plate 42. The two sides of the fire-resistant main ditch 1 are arranged through main ditch side plates, a gap is reserved between the side wall rib plate 24 and the concrete ditch side plate 42 so as to form a cooling air duct 6, and the interior of the fire-resistant main ditch can be sufficiently cooled through the cooling air duct 6.
In this embodiment, the refractory material layer 5 is disposed between the bottom closing plate 22 and the concrete trench bottom plate 41 and between the cooling air duct 6 and the concrete trench side plate 43. The refractory material layer 5 is manufactured by adopting a pouring, smearing or spraying mode, and the support beam can be fixed by the refractory material between the bottom sealing plate 22 and the bottom plate of the concrete ditch, so that the temperature of the concrete ditch is reduced, and the concrete ditch is prevented from being damaged after molten iron overflows from the main ditch.
In this embodiment, the air guiding holes 43 transversely penetrate through the refractory material layer 5 and are communicated with the cooling air duct 6, and the plurality of air guiding holes 43 are uniformly distributed on the same horizontal height of the concrete trench side plate at equal intervals. Preferably, the air guide holes 43 are inclined upwards by 5-10 degrees relative to the horizontal direction, the air guide holes 43 guide and guide the air out to realize heat exchange, the plurality of air guide holes arranged side by side are convenient for guiding out the hot air after the cooling process is carried out, of course, an air inlet hole can be arranged below the air guide holes 43, the air inlet hole below the air guide holes can guide the air in, and the air is discharged from the air guide holes 43 above the air guide holes after the cooling, so that the cooling effect is further improved.
In this embodiment, the air duct cover plate rib plates 72 and the air duct cover plate 71 are disposed above the cooling air duct 6, and the air duct cover plate 71 is disposed above the air duct cover plate rib plates 72. The air duct cover plate is composed of a panel and rib plates, and various production materials on the cast house can be prevented from falling into the concrete groove by the air duct cover plate, and convenience is brought to replacement of equipment inside and outside the main channel steel shell by cast house operators through the cooling air duct.
In this embodiment, the air duct cover plate panel is provided with a protective material layer 8. The protective material layer 8 of the air duct cover plate is arranged on the air duct cover plate and can be made of bricklaying or spray coating, and the air duct cover plate, a main duct steel shell, a concrete groove or other equipment and buildings are prevented from being damaged after molten iron overflows from the main duct.
In this embodiment, the end of the side wall sealing plate is provided with a top sealing plate 25 along the transverse direction. The top closure plate 25 is provided to prevent molten iron from overflowing from the main trough.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. The utility model provides a blast furnace casting house natural air cooling owner ditch which characterized in that: the main ditch comprises a fire-resistant main ditch, a main ditch bottom plate assembly arranged below the fire-resistant main ditch, a main ditch side plate assembly arranged on the side surface of the fire-resistant main ditch, a concrete ditch bottom plate used for mounting the main ditch bottom plate assembly and a concrete ditch side plate; a cooling air channel is formed between the main groove side plate assembly and the concrete groove side plate, and a ventilation hole used for communicating the cooling air channel is formed in the concrete groove side plate.
2. The natural air-cooled main channel of a blast furnace casting house according to claim 1, characterized in that: the main trench bottom plate assembly comprises a bottom rib plate, a bottom sealing plate and a supporting beam arranged between the concrete trench bottom plate and the bottom sealing plate, wherein the bottom rib plate and the bottom sealing plate are sequentially arranged from top to bottom; the supporting beams are a plurality of and a plurality of supporting beams are evenly distributed on the concrete trench bottom plate.
3. The natural air-cooled main channel of a blast furnace casting house according to claim 2, characterized in that: the main trench side plate assembly comprises a side wall sealing plate and a side wall rib plate which are sequentially arranged from inside to outside, and the cooling air duct is formed between the side wall rib plate and the concrete trench side plate.
4. The blast furnace casting house natural air-cooled main runner according to claim 3, characterized in that: and refractory material layers are uniformly arranged between the bottom closing plate and the concrete groove bottom plate and between the cooling air duct and the concrete groove side plate.
5. The natural air-cooled main channel of a blast furnace casting house according to claim 4, characterized in that: the concrete trench side plate is characterized by further comprising a plurality of air guide holes, wherein the air guide holes transversely penetrate through the refractory material layer and are communicated with the cooling air duct, and the air guide holes are uniformly distributed on the same horizontal height of the concrete trench side plate at equal intervals.
6. The natural air-cooled main channel of a blast furnace casting house according to claim 5, characterized in that: and an air duct cover plate rib plate and an air duct cover plate panel are arranged above the cooling air duct, and the air duct cover plate panel is arranged above the air duct cover plate rib plate.
7. The natural air-cooled main channel of a blast furnace casting house according to claim 6, characterized in that: and a protective material layer is arranged on the air duct cover plate panel.
8. The natural air-cooled main channel of a blast furnace casting house according to claim 3, characterized in that: and the end parts of the side wall sealing plates are provided with top sealing plates along the transverse direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122554161.3U CN216550506U (en) | 2021-10-22 | 2021-10-22 | Natural air cooling main channel of blast furnace casting house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122554161.3U CN216550506U (en) | 2021-10-22 | 2021-10-22 | Natural air cooling main channel of blast furnace casting house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216550506U true CN216550506U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122554161.3U Active CN216550506U (en) | 2021-10-22 | 2021-10-22 | Natural air cooling main channel of blast furnace casting house |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216550506U (en) |
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2021
- 2021-10-22 CN CN202122554161.3U patent/CN216550506U/en active Active
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