CN218340666U - Heat preservation device for hot continuous rolling intermediate billet - Google Patents
Heat preservation device for hot continuous rolling intermediate billet Download PDFInfo
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- CN218340666U CN218340666U CN202221788128.5U CN202221788128U CN218340666U CN 218340666 U CN218340666 U CN 218340666U CN 202221788128 U CN202221788128 U CN 202221788128U CN 218340666 U CN218340666 U CN 218340666U
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Abstract
The application discloses base heat preservation device in middle of hot continuous rolling relates to material processing equipment technical field, includes: the apron board assemblies are arranged between every two adjacent roller ways; the heat preservation component is arranged in the apron board component; the heat insulation assembly comprises a heat insulation layer and a heat insulation substrate which are distributed in an up-down mode; the method has the technical key points that the defect that the lower surface of the hot continuous rolling intermediate billet does not have a heat insulation structure when conveyed by a roller way is overcome, and the temperature of the lower surface of the intermediate billet is effectively increased, so that the uniformity of the temperature of the intermediate billet is improved, and the stability of a finishing mill during rolling is improved; after the hot continuous rolling mill is applied, the effect is obvious, and the average temperature of the intermediate billet is obviously improved under the condition of unchanging heating temperature; by reducing the temperature loss of the intermediate billet, the same intermediate billet temperature can be obtained under the condition of relatively low heating temperature, and the energy cost of the heating procedure is saved.
Description
Technical Field
The utility model belongs to the technical field of the material processing equipment, specifically a blank heat preservation device in middle of hot continuous rolling.
Background
In the hot continuous rolling production, a plate blank is heated to a specified temperature through a heating furnace, then the plate blank is rolled into an intermediate blank through a roughing mill, the intermediate blank is conveyed to a finishing mill group through an intermediate roller way and then rolled into a finished product, a skirt board is arranged between rollers of the intermediate roller way to prevent the intermediate blank from impacting against the roller way, the length of the intermediate roller way at the position is usually more than 70 meters, the number of the roller ways is up to more than 80, the time for conveying the intermediate blank to the finishing mill is longer, the temperature is reduced due to the contact of strip steel and air, the energy is greatly wasted, and meanwhile, the rolling stability of the finishing mill is reduced due to the increase of the temperature difference of the intermediate blank.
In order to reduce the temperature drop of the intermediate billet, a heat-insulating cover is usually arranged above the intermediate roller way to cover the intermediate billet and reduce the convection between the intermediate billet and the air, and a skirting board is usually adopted between the roller ways to prevent the warping buckle head of the strip steel from butting against the roller way, but because the gap between the skirting boards is too large, the lower surface of the intermediate billet generates convection with the air, and the temperature loss of the intermediate billet is formed from the lower surface.
In the prior art, some production lines adopt a steel structure to integrally seal the lower part of an intermediate roller way, because the temperature of an intermediate blank is higher and is generally 1000-1100 ℃, the steel structure is easy to deform and damage under high-temperature baking, and meanwhile, high-temperature iron oxide scales generated by the intermediate blank can be accumulated on the steel structure, so that the operation of the intermediate blank and the accuracy of temperature detection are influenced; in addition, a heater can be arranged on the edge part, the heater can also be used for improving the temperature drop of the intermediate billet, but the heater mainly improves the temperature of the edge part of the intermediate billet, has higher manufacturing cost and complex structure, is difficult to maintain equipment, and is less used in the conventional hot continuous rolling production line.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved is as follows:
the utility model provides a not enough to prior art, the utility model provides a base heat preservation device in middle of hot continuous rolling has solved the problem of mentioning in the background art.
The technical scheme is as follows:
in order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a hot continuous rolling intermediate billet heat preservation device comprises:
the apron board assemblies are arranged between every two adjacent roller ways;
the heat insulation component is arranged in the apron board component;
wherein the apron board assembly comprises an apron board frame and an apron board which are distributed in an up-down manner;
the heat insulation assembly comprises a heat insulation layer and a heat insulation substrate which are distributed in an up-down mode.
The method overcomes the defect that a hot continuous rolling intermediate roller way does not have a heat insulation structure during transportation, and effectively improves the temperature of the lower surface of the intermediate billet, thereby improving the uniformity of the temperature of the intermediate billet and improving the stability of a finishing mill during rolling; after the hot continuous rolling unit is applied, the effect is obvious, and the average temperature of the intermediate billet is obviously improved under the condition of keeping the heating temperature unchanged.
Preferably, the top end of the apron board frame is inserted into the apron board and fixed by welding for supporting the apron board.
Preferably, the heat-insulating base plate is made of a carbon structural steel plate and is welded with the inner wall of the apron plate.
Preferably, the heat-insulating layer is made of an aluminum silicate cotton needle punched blanket, a gap exists between the heat-insulating layer and the upper surface of the roller way, the gap is 20-30mm, and interference with the running position of the intermediate blank is prevented.
Preferably, the two sides of the heat-insulating layer are both provided with edge baffles, and the heat-insulating layer completely fills the area between the two sets of edge baffles.
Preferably, a gap is reserved between the apron board and the roller way, the gap is 15-25mm, and the oxidized iron sheet is discharged.
Above-mentioned heat preservation device can prevent effectively because the space is too big between the skirtboard, causes middle base lower surface and air convection, leads to middle base lower surface temperature loss, remains gapped between skirtboard and the roll table simultaneously, and the iron scale that middle base produced can drop through the clearance, avoids iron scale to pile up constantly and hinders middle base operation.
Has the advantages that:
firstly, the shortcoming that the hot continuous rolling middle roller way does not have insulation construction when transporting has been solved in this application, has improved the temperature of middle base lower surface effectively to the homogeneity of middle base temperature has been improved, has improved the stability of finishing mill when rolling.
Secondly, after the application of the hot continuous rolling mill set, the effect is obvious, and the average temperature of the intermediate billet is obviously improved under the condition of unchanged heating temperature;
thirdly, this application can obtain the same intermediate billet temperature under the relatively lower condition of heating temperature through the temperature loss that reduces the intermediate billet, has practiced thrift the energy cost of heating process.
Drawings
FIG. 1 is a schematic view of the structure of the middle roller bed of the present invention;
fig. 2 is a front view of the intermediate roller table before the implementation of the present invention;
fig. 3 is a top view of the intermediate roller table before the implementation of the present invention;
fig. 4 is a front view of the intermediate roller table after the present invention is implemented;
fig. 5 is a top view of the middle roller way after the implementation of the present invention.
Reference numerals: 1. a skirt board frame; 2. a skirt board; 3. a roller way; 4. an intermediate blank; 5. a heat-insulating substrate; 6. and (7) an insulating layer.
Detailed Description
The embodiment of the application solves the problems in the prior art by providing the heat preservation device for the hot continuous rolling intermediate billet.
In order to solve the above problems, the technical solution in the embodiment of the present application has the following general idea:
example 1:
this embodiment shows a specific structure of the whole apparatus, as shown in fig. 1 to 5, a hot continuous rolling intermediate billet heat preservation apparatus includes: the single apron board assembly is arranged between the two adjacent roller ways 3; the intermediate blanks 4 are placed on the roller ways 3 and can drive the intermediate blanks 4 to move; the heat preservation assembly is arranged in the apron plate assembly and is used for carrying out heat preservation treatment on the intermediate blank 4;
the apron board assembly comprises an apron board frame 1 and an apron board 2 which are distributed in an up-down mode, a gap is formed between the apron board 2 and the roller way 3, and oxide scales are discharged; the heat preservation subassembly contains heat preservation 6 and the heat preservation base plate 5 that is the following formula distribution from top to bottom, and has the interval between heat preservation 6 and the 3 upper surfaces of roll table, prevents to take place to interfere with middle base operating position.
By adopting the technical scheme:
the method overcomes the defect that the hot continuous rolling intermediate roller way does not have a heat insulation structure during transportation, and effectively improves the temperature of the lower surface of the intermediate billet 4, thereby improving the uniformity of the temperature of the intermediate billet 4 and improving the stability of the finishing mill during rolling; after the application of the An steel 1780mm hot continuous rolling unit, the effect is obvious, and under the condition that the heating temperature is not changed, the average temperature of the intermediate billet 4 is increased by 8-12 ℃.
In some examples, the skirt panel assembly comprises a skirt panel frame 1 and a skirt panel 2 in an up-down distribution;
wherein, the top of skirtboard frame 1 inserts in skirtboard 2, adopts the welding mode fixed for support skirtboard 2.
In some examples, the heat-insulating base plate 5 is made of carbon structural steel plate and is welded with the inner wall of the apron plate 2.
In some examples, the insulating layer 6 is made of a needle-punched blanket of aluminium silicate cotton, and there is a distance between the insulating layer 6 and the upper surface of the roller table 3, this distance being 20-30mm, this distance being set with the purpose of:
preventing interference with the intermediate blank 4 running position.
In some examples, both sides of the insulation layer 6 are provided with edge dams, and the insulation layer 6 completely fills the area between the two sets of edge dams.
In some examples, there remains a gap between the apron and the roller table, the gap being 15mm-25mm, the spacing being set with the purpose of:
the iron scale produced by the intermediate billet 4 can fall through the gap, so that the iron scale is prevented from being continuously accumulated to block the operation of the intermediate billet 4.
By adopting the technical scheme:
the heat preservation assembly is arranged between the roller way 3 and the apron plate 2, so that the temperature drop of the intermediate billet 4 is reduced, the rolling stability of the finishing mill is improved, and the energy cost of a heating process is saved.
The specific installation process is as follows:
a heat insulation component is arranged between the roller way 3 and the apron board 2, the heat insulation component consists of a heat insulation substrate 5 made of metal and a soft heat insulation layer 6, the heat insulation substrate 5 made of metal is fixed on the apron board 2, and the metal material generally adopts a common carbon structural steel plate; laying a soft heat-insulating material on a heat-insulating substrate 5 made of a metal material, wherein the heat-insulating material is an aluminum silicate cotton needle punched blanket; the upper edge of the heat-insulating layer 6 is 20-30mm lower than the upper edge of the roller table 3, so that the interference with the running position of the intermediate blank 4 is prevented; a15-25 mm gap is reserved between the heat insulation assembly and the roller way 3, and iron scales generated by the intermediate blank 4 can fall through the gap, so that the situation that the iron scales are continuously accumulated to block the operation of the intermediate blank is avoided.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (6)
1. The utility model provides a blank heat preservation device in middle of hot continuous rolling which characterized in that includes:
a plurality of apron board assemblies and roller ways (3) which are distributed in an alternating manner in the horizontal direction;
the heat preservation component is arranged in the apron board component;
wherein the apron plate component comprises an apron plate frame (1) and an apron plate (2) which are distributed in an up-down manner;
the heat insulation assembly comprises a heat insulation layer (6) and a heat insulation substrate (5) which are distributed in an up-down mode.
2. The hot continuous rolling intermediate slab heat preservation device according to claim 1, characterized in that: the top end of the apron board frame (1) is inserted into the apron board (2) and fixed in a welding mode and used for supporting the apron board (2).
3. The hot continuous rolling intermediate slab heat preservation device according to claim 1, characterized in that: the heat-insulating base plate (5) is made of a carbon structural steel plate and is welded with the inner wall of the apron plate (2).
4. The hot continuous rolling intermediate slab heat preservation device of claim 1, characterized in that: the heat-insulating layer (6) is made of an aluminum silicate cotton needle punched blanket, a distance exists between the heat-insulating layer (6) and the upper surface of the roller way (3), and the distance is 20-30mm and is used for preventing interference with the running position of the intermediate blank (4).
5. The hot continuous rolling intermediate slab heat preservation device according to claim 4, characterized in that: the two sides of the heat-insulating layer (6) are provided with edge baffles, and the heat-insulating layer (6) is completely filled in the area between the two sets of edge baffles.
6. The hot continuous rolling intermediate slab heat preservation device of claim 1, characterized in that: a gap is reserved between the apron board (2) and the roller way (3), the gap is 15-25mm, and the oxide scale is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221788128.5U CN218340666U (en) | 2022-07-12 | 2022-07-12 | Heat preservation device for hot continuous rolling intermediate billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221788128.5U CN218340666U (en) | 2022-07-12 | 2022-07-12 | Heat preservation device for hot continuous rolling intermediate billet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218340666U true CN218340666U (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221788128.5U Active CN218340666U (en) | 2022-07-12 | 2022-07-12 | Heat preservation device for hot continuous rolling intermediate billet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218340666U (en) |
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2022
- 2022-07-12 CN CN202221788128.5U patent/CN218340666U/en active Active
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