CN214290805U - Ladle cover baking device - Google Patents
Ladle cover baking device Download PDFInfo
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- CN214290805U CN214290805U CN202023013286.7U CN202023013286U CN214290805U CN 214290805 U CN214290805 U CN 214290805U CN 202023013286 U CN202023013286 U CN 202023013286U CN 214290805 U CN214290805 U CN 214290805U
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- ladle cover
- assembly
- baking
- combustion chamber
- heats
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a ladle cover baking equipment, include: a housing provided with a combustion chamber; a combustion assembly for generating a flame within the combustion chamber; the baking assembly is arranged in the shell and positioned at the upper end of the combustion chamber, the baking assembly is composed of a porous radiation medium with the aperture of 20-60mm, and the surface of the baking assembly is coated with high-temperature radiation paint; the supporting assembly is arranged at the upper end of the shell and used for placing the ladle cover; wherein the flame heats the baking assembly, which heats the ladle cover by radiation; the gas in the flame heating combustion chamber forms a gas flow, and the gas flow flows upwards into an inner hole of the porous radiation medium to heat the baking assembly; and the air flow upwards flows out of the porous radiation medium and then heats the ladle cover through convection heat transfer. The device can effectively bake and heat the lining refractory material of the steel ladle cover, free water and crystal water in the refractory material are removed, and the lining refractory material is preliminarily sintered, so that the problem of short service life of the steel ladle cover which is not baked is solved.
Description
Technical Field
The utility model belongs to the technical field of the steelmaking auxiliary device, especially, relate to a steelmaking field.
Background
Molten steel needs to be transported from a smelting furnace to a continuous casting tundish by a ladle in the steelmaking production process, the temperature of high-temperature molten steel in the ladle can be reduced in the transportation process, and more smelting plants adopt a ladle covering technology in order to reduce the temperature drop of the molten steel in the transportation process.
The ladle cover is made of a steel structural member lining refractory material. At present, most of lining refractory materials of ladle covers adopted by various steel mills are not baked, the unbaked refractory materials are easy to peel off and damage in the using process, metal structural members of the ladle covers are quickly scalded by high-temperature molten steel after the refractory materials are peeled off, the service lives of the ladle covers are short, and the ladle covers need to be frequently replaced. Therefore, it is an urgent research topic of steel works to improve the service life of the refractory material of the ladle cover. The free water and the crystal water inside the refractory material are removed by baking the refractory material of the steel ladle cover lining at the medium-high temperature, the refractory material becomes more compact through preliminary sintering, the service life of the steel ladle cover can be obviously prolonged, and therefore a baking device capable of effectively baking the steel ladle cover lining is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a ladle cover baking equipment, the device can effectively toast the heating to ladle cover inside lining refractory material, deviates from free water, crystal water among the refractory material and makes inside lining refractory material preliminary sintering to the solution is not toasted the short-lived problem of ladle cover.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a ladle cover roasting apparatus comprising:
a housing provided with a combustion chamber;
a combustion assembly for generating a flame within the combustion chamber;
the baking assembly is arranged in the shell and positioned at the upper end of the combustion cavity, the baking assembly is composed of a porous radiation medium with the aperture of 20-60mm, and the surface of the baking assembly is coated with high-temperature radiation paint;
the supporting assembly is arranged at the upper end of the shell and used for placing the ladle cover;
wherein the flame heats the bakeout assembly which heats the ladle lid by radiation; the flame heats the gas in the combustion chamber to form a gas flow, and the gas flow flows upwards into the inner hole of the porous radiation medium to heat the baking assembly; and the air flow upwards flows out of the porous radiation medium and then heats the ladle cover through convection heat transfer.
According to the utility model discloses an embodiment, combustion assembly includes gas pipeline, combustion-supporting gas pipeline and combustor, the gas pipeline with gas and combustion-supporting gas in the combustion-supporting gas pipeline pass through get into after the combustor burning in the burning chamber.
According to an embodiment of the invention, the porous radiation medium is made of a heat resistant material.
According to an embodiment of the present invention, the heat-resistant material is a silicate refractory material.
According to the utility model discloses an embodiment, porous radiation medium's hole is mixed by circular port and rectangular hole and is constituteed.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the embodiment of the utility model provides an in set up casing, combustion assembly, toast subassembly and supporting component, can effectively toast the dehydration to the ladle lid. The flame heats the baking assembly, which heats the ladle cover by radiation. And the inner hole of the porous radiation medium of the baking assembly is 20-60mm, so that heated high-temperature airflow can enter the porous radiation medium, the airflow can flow to the steel ladle cover through the inner hole in the porous radiation medium, convection heating is realized, and the heating effect of the whole body is better through radiation heating and convection heating. And the surface of the baking component is coated with high-temperature radiation coating, so that the radiation heating effect of the baking component is better.
(2) The embodiment of the utility model provides an in porous radiation medium's hole is mixed by circular port and rectangular hole and is constituteed for radiant heating is more even.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is an overall schematic view of a ladle cover baking device of the present invention;
FIG. 2 is a top view of a baking assembly of the ladle cover baking device of the present invention;
fig. 3 is a front view of a baking assembly of a steel ladle cover baking device of the utility model.
Description of reference numerals:
1: a housing; 2: a combustion chamber; 3: a combustion assembly; 4: a baking assembly; 5: a support assembly; 6: and (6) covering the steel ladle.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1 to 3, the core of the present invention is to provide a ladle cover baking apparatus, comprising a housing 1, a combustion assembly 3, a baking assembly 4 and a support assembly 5. The shell 1 is provided with a combustion chamber 2; the combustion assembly 3 is used for generating flame in the combustion chamber 2; the baking component 4 is arranged in the shell 1 and is positioned at the upper end of the combustion chamber 2, the baking component 4 is composed of a porous radiation medium with the aperture of 20-60mm, and the surface of the baking component 4 is coated with high-temperature radiation coating; the supporting component 5 is arranged at the upper end of the shell 1 and used for placing the steel ladle cover 6.
The flame heating baking component 4 heats the ladle cover 6 through radiation by the baking component 4; the gas in the flame heating combustion chamber 2 forms gas flow, and the gas flow flows upwards into the inner hole of the porous radiation medium to heat the baking component 4; the air flow flows upwards out of the porous radiation medium and then heats the ladle cover 6 through convection heat transfer.
Through the setting, the ladle cover 6 can be effectively baked and dehydrated, free water and crystal water in the refractory material are removed, and the lining refractory material is preliminarily sintered, so that the problem that the service life of the ladle cover 6 is short without being baked is solved. The flame heats the roasting assembly 4 and the roasting assembly 4 heats the ladle cover 6 by radiation. And the size of the inner hole of the porous radiation medium of the baking component 4 is 20-60mm, so that heated high-temperature airflow can enter the porous radiation medium, and the airflow can flow to the steel ladle cover 6 through the inner hole in the porous radiation medium, so that convection heating is realized, if the inner hole of the porous radiation medium is too small, the airflow cannot effectively pass through, and if the inner hole is too large, flame can directly pass through the inner hole to bake the steel ladle cover 6, so that the heating is uneven. The whole heating effect is better and more uniform through radiation heating and convection heating. And the surface of the baking component 4 is coated with high-temperature radiation paint, so that the radiation heating effect of the baking component 4 is better.
The ladle cover baking device of the utility model is explained in detail as follows:
the upper end of the shell 1 is opened, the baking component 4 is arranged in the shell 1, the baking component 4 divides the inner cavity of the lower part of the shell 1 into the combustion cavity 2, the baking component 4 is composed of a porous radiation medium coated with high-temperature radiation paint on the surface, and a plurality of inner holes on the porous radiation medium can be circular holes, elliptical holes, polygonal holes and other special-shaped holes, can be hole patterns, also can be various hole patterns, can be hole patterns with the same size, and also can be hole patterns with different sizes. And the plurality of inner holes may be uniformly arranged or non-uniformly arranged. The hole of porous radiation medium is mixed by circular port and rectangular hole and is constituteed in this embodiment for radiant heating is more even.
The porous radiation medium is made of metal or nonmetal material, and in this embodiment, the porous radiation medium is made of metal or nonmetal heat-resistant material, and is silicate refractory material or silicon carbide heat-resistant material.
The supporting component 5 is a supporting column arranged at the upper end of the shell 1, and the steel ladle cover 6 is placed on the supporting column.
The combustion assembly 3 comprises a gas pipeline, a combustion-supporting gas pipeline and a burner, the gas pipeline and the combustion-supporting gas pipeline are both introduced into the combustion chamber 2, the burner is arranged in the combustion chamber 2, and the burner is used for igniting gas.
The gas pipeline and the combustion-supporting gas pipeline spray gas and combustion-supporting gas into the combustion cavity 2, the gas and the combustion-supporting gas form flame and smoke after being combusted by the combustor, the flame heats the gas in the combustion cavity 2 while heating the baking component 4 to form high-temperature airflow, the smoke and the airflow are divided into a plurality of strands of trickle by a plurality of inner holes of the porous radiation medium to wash out the lining refractory material of the heating ladle cover 6 after flowing through the porous radiation medium, the convection heating ladle cover 6 is realized, and the smoke and the airflow also heat the porous radiation medium when flowing through the inner holes. And the heated roasting assembly 4 also performs uniform radiation heating on the lining of the ladle cover 6.
The utility model discloses a ladle lid 6 baking equipment has designed porous radiation medium between combustion chamber 2 and ladle lid 6 ingeniously for the air current stream bundle that high temperature flame formed directly erodees 6 inside lining refractory materials of ladle lid, and it is more even to conduct heat, and heat transfer efficiency is higher, thereby has solved ladle lid 6 and has not toasted or toasted the problem that the quality is good for the ladle lid 6 short-lived that leads to, has prolonged the life of ladle lid 6 effectively, simultaneously can the energy saving, reduces the purpose of steelmaking process cost.
In addition, the technology of adding the ladle cover 6 in the molten steel transferring process is in a starting stage, so that a large number of steel plants do not adopt the technology of adding the ladle cover 6 to transfer the molten steel or adopt the technology of adding the ladle cover 6 without effectively baking the ladle cover 6, and the technology has good popularization and application prospects.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (5)
1. A ladle cover baking device is characterized by comprising:
a housing provided with a combustion chamber;
a combustion assembly for generating a flame within the combustion chamber;
the baking assembly is arranged in the shell and positioned at the upper end of the combustion cavity, the baking assembly is composed of a porous radiation medium with the aperture of 20-60mm, and the surface of the baking assembly is coated with high-temperature radiation paint;
the supporting assembly is arranged at the upper end of the shell and used for placing the ladle cover;
wherein the flame heats the bakeout assembly which heats the ladle lid by radiation; the flame heats the gas in the combustion chamber to form a gas flow, and the gas flow flows upwards into the inner hole of the porous radiation medium to heat the baking assembly; and the air flow upwards flows out of the porous radiation medium and then heats the ladle cover through convection heat transfer.
2. The ladle cover baking device according to claim 1, wherein the combustion assembly comprises a gas pipeline, an oxidant gas pipeline and a burner, and the gas and the oxidant gas in the gas pipeline and the oxidant gas pipeline enter the combustion chamber after being combusted by the burner.
3. The ladle cover roasting apparatus according to claim 1, wherein the porous radiation medium is made of a heat-resistant material.
4. The ladle cover roasting apparatus according to claim 3, wherein the heat-resistant material is a silicate refractory material.
5. The ladle cover roasting apparatus according to claim 1, wherein the inner hole of the porous radiation medium is composed of a mixture of a circular hole and a rectangular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023013286.7U CN214290805U (en) | 2020-12-15 | 2020-12-15 | Ladle cover baking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023013286.7U CN214290805U (en) | 2020-12-15 | 2020-12-15 | Ladle cover baking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214290805U true CN214290805U (en) | 2021-09-28 |
Family
ID=77853724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023013286.7U Active CN214290805U (en) | 2020-12-15 | 2020-12-15 | Ladle cover baking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214290805U (en) |
-
2020
- 2020-12-15 CN CN202023013286.7U patent/CN214290805U/en active Active
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