CN215919075U - Steel ladle baking device for oxygen-enriched efficient steelmaking - Google Patents
Steel ladle baking device for oxygen-enriched efficient steelmaking Download PDFInfo
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- CN215919075U CN215919075U CN202121832120.XU CN202121832120U CN215919075U CN 215919075 U CN215919075 U CN 215919075U CN 202121832120 U CN202121832120 U CN 202121832120U CN 215919075 U CN215919075 U CN 215919075U
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- flue gas
- steel ladle
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Abstract
The utility model relates to an oxygen-enriched high-efficiency steel ladle baking device for steelmaking, and belongs to the technical field of steelmaking production equipment in the metallurgical industry. The technical scheme is as follows: the ladle cover (2) is matched with the ladle (1), the flue gas outlet (6) is arranged at the center of the ladle cover (2), the flue gas pipeline (7) is connected with the flue gas outlet (6), the flue gas pipeline (7) is provided with a smoke exhaust fan (8), the oxygen pipeline (5) is inserted into the ladle (1) through the center of the flue gas outlet (6) on the flue gas pipeline (7), a plurality of coal gas burners (3) are uniformly distributed on the ladle cover (2) around the center of the oxygen pipeline (5), and the coal gas burners (3) are connected with the coal gas pipeline (4). The utility model has the beneficial effects that: by means of oxygen combustion supporting, coal gas for baking the steel ladle is fully combusted, the baking temperature in the steel ladle is uniform, the baking efficiency of the steel ladle is improved, the baking time of the steel ladle is shortened, and the consumption of the coal gas for baking the steel ladle is reduced.
Description
Technical Field
The utility model relates to an oxygen-enriched high-efficiency steel ladle baking device for steelmaking, and belongs to the technical field of steelmaking production equipment in the metallurgical industry.
Background
The steel ladle is one of key devices in the steelmaking production process flow and bears the tasks of molten steel storage, refining, transportation and the like. The baking of the steel ladle is one of important links in the steelmaking production process, so that the explosion hazard caused by moisture in the steel ladle can be effectively prevented, the utilization rate of molten steel is improved, the service life of the steel ladle is prolonged, and the like.
At present, the baking of the steel ladle mainly adopts an air combustion-supporting steel ladle baking technology, the purpose of baking the steel ladle is achieved by using mixed combustion of air and coal gas, but because the oxygen content in the air is low, the complete combustion of carbon monoxide in the coal gas cannot be completely promoted, the baking time is long, the coal gas consumption is high, and certain energy waste and environmental pollution are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an oxygen-enriched high-efficiency steel ladle baking device for steelmaking, which can fully combust coal gas, improve the baking efficiency of a steel ladle, shorten the baking time of the steel ladle, reduce the coal gas consumption and solve the problems in the background technology.
The technical scheme of the utility model is as follows:
the utility model provides an oxygen boosting is ladle baking equipment for high-efficient steelmaking, contains ladle, be built by contract, coal gas nozzle, gas piping, oxygen pipeline, exhanst gas outlet, flue gas pipeline and smoke exhaust fan, and the be built by contract and the ladle phase-match, the flue gas outlet sets up the central point at the be built by contract and puts, and the flue gas pipeline is connected with the flue gas outlet, is equipped with smoke exhaust fan on the flue gas pipeline, and the oxygen pipeline inserts in the ladle by the center of flue gas outlet through the flue gas pipeline, and the be built by contract center evenly distributed around the oxygen pipeline have a plurality of coal gas nozzles, the coal gas nozzle is connected with the gas piping.
The flue gas pipeline is connected with the flue gas outlet through a 90-degree elbow, and the oxygen pipeline is inserted into the steel ladle from the center of the flue gas outlet through the 90-degree elbow of the flue gas pipeline.
The diameter of the oxygen pipeline is smaller than that of the 90-degree elbow.
Six gas burners are uniformly distributed on the covering around the center of the oxygen pipeline.
The gas pipeline is an annular pipeline.
The utility model has the beneficial effects that: the method has the advantages that the coal gas for baking the steel ladle is fully combusted in an oxygen combustion-supporting mode, the baking temperature in the steel ladle is uniform through reasonable arrangement of the oxygen pipeline and the coal gas pipeline and adjustment of the pressure and the flow of the coal gas and the oxygen, the baking efficiency of the steel ladle is improved, the baking time of the steel ladle is shortened, and the consumption of the coal gas for baking the steel ladle is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional top view taken along line A-A of FIG. 1;
in the figure: the device comprises a steel ladle 1, a ladle cover 2, a gas burner 3, a gas pipeline 4, an oxygen pipeline 5, a flue gas outlet 6, a flue gas pipeline 7, a smoke exhaust fan 8 and a 90-degree elbow 9.
Detailed Description
The utility model is further illustrated by way of example in the following with reference to the accompanying drawings.
Referring to the attached drawings 1-2, the steel ladle baking device for oxygen-enriched high-efficiency steelmaking comprises a steel ladle 1, a ladle cover 2, gas burners 3, a gas pipeline 4, an oxygen pipeline 5, a flue gas outlet 6, a flue gas pipeline 7 and a smoke exhaust fan 8, wherein the ladle cover 2 is matched with the steel ladle 1, the flue gas outlet 6 is arranged at the central position of the ladle cover 2, the flue gas pipeline 7 is connected with the flue gas outlet 6, the smoke exhaust fan 8 is arranged on the flue gas pipeline 7, the oxygen pipeline 5 is inserted into the steel ladle 1 from the center of the flue gas outlet 6 through the flue gas pipeline 7, a plurality of gas burners 3 are uniformly distributed on the ladle cover 2 around the center of the oxygen pipeline 5, and the gas burners 3 are connected with the gas pipeline 4.
In this embodiment, as shown in fig. 1-2, the flue gas duct 7 is connected to the flue gas outlet 6 through a 90-degree elbow 9, the diameter of the oxygen duct 5 is smaller than the diameter of the 90-degree elbow 9, the oxygen duct 5 is inserted into the ladle 1 through the 90-degree elbow 9 of the flue gas duct 7 from the center of the flue gas outlet 6, the flue gas outlet 6 is arranged at the center of the ladle cover 2, six gas burners 3 are uniformly distributed around the center of the oxygen duct 5, the six gas burners 3 are connected to the annular gas duct 4, and the gas burners 3 can be adjusted in angle within the range of 5-45 °.
The method for baking the steel ladle for oxygen-enriched high-efficiency steelmaking comprises the following steps:
a. hoisting the ladle 1 to be baked to a ladle baking position, lowering the ladle cover 2, and preparing for baking the ladle;
b. starting a gas pipeline 4 to supply gas, starting a gas burner 3 to ignite, and after flame is stabilized, supplying oxygen through an oxygen pipeline 5 to support combustion of the gas;
c. in the baking process, the angles of the gas burners 3 are adjusted to bake different positions in the steel ladle 1 by adjusting the pressure and the flow of gas and oxygen, and the flue gas generated in the baking process of the steel ladle 1 is discharged by a flue gas exhaust fan 8 through a flue gas outlet 6 and a flue gas pipeline 7;
d. and after the temperature of the lining of the steel ladle 1 reaches the requirement, stopping supplying the coal gas and the oxygen, ending baking the steel ladle 1, and hoisting the steel ladle 1 out.
Claims (5)
1. The utility model provides a ladle baking equipment for high-efficient steelmaking of oxygen boosting which characterized in that: contain ladle (1), be built by contract (2), coal gas nozzle (3), gas piping (4), oxygen pipeline (5), exhanst gas outlet (6), flue gas pipeline (7) and smoke exhaust fan (8), be built by contract (2) and ladle (1) phase-match, exhanst gas outlet (6) set up the central point in be built by contract (2) and put, flue gas pipeline (7) are connected with exhanst gas outlet (6), be equipped with smoke exhaust fan (8) on flue gas pipeline (7), oxygen pipeline (5) are inserted in ladle (1) by the center of exhanst gas outlet (6) through flue gas pipeline (7), center evenly distributed around oxygen pipeline (5) on be built by contract (2) has a plurality of coal gas nozzles (3), coal gas nozzle (3) are connected with gas piping (4).
2. The ladle baking device for oxygen-enriched efficient steelmaking according to claim 1, characterized in that: the flue gas pipeline (7) is connected with the flue gas outlet (6) through a 90-degree elbow (9), and the oxygen pipeline (5) is inserted into the steel ladle (1) from the center of the flue gas outlet (6) through the 90-degree elbow (9) of the flue gas pipeline (7).
3. The ladle baking device for oxygen-enriched efficient steelmaking according to claim 2, characterized in that: the diameter of the oxygen pipeline (5) is smaller than that of the 90-degree elbow (9).
4. The ladle baking device for oxygen-enriched efficient steelmaking according to claim 1, characterized in that: six gas burners (3) are uniformly distributed on the ladle cover (2) around the center of the oxygen pipeline (5).
5. The ladle baking device for oxygen-enriched efficient steelmaking according to claim 1, characterized in that: the gas pipeline (4) is an annular pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121832120.XU CN215919075U (en) | 2021-08-06 | 2021-08-06 | Steel ladle baking device for oxygen-enriched efficient steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121832120.XU CN215919075U (en) | 2021-08-06 | 2021-08-06 | Steel ladle baking device for oxygen-enriched efficient steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215919075U true CN215919075U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121832120.XU Active CN215919075U (en) | 2021-08-06 | 2021-08-06 | Steel ladle baking device for oxygen-enriched efficient steelmaking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985716A (en) * | 2022-06-28 | 2022-09-02 | 东北大学 | Pure oxygen combustion type ladle baking device and method for recycling flue gas waste heat |
-
2021
- 2021-08-06 CN CN202121832120.XU patent/CN215919075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985716A (en) * | 2022-06-28 | 2022-09-02 | 东北大学 | Pure oxygen combustion type ladle baking device and method for recycling flue gas waste heat |
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